EP0918611A1 - Moule d'injection permettant la fabrication, sans matri age, d'un tube cylindrique a tubulures saillantes et interne - Google Patents
Moule d'injection permettant la fabrication, sans matri age, d'un tube cylindrique a tubulures saillantes et interneInfo
- Publication number
- EP0918611A1 EP0918611A1 EP97931831A EP97931831A EP0918611A1 EP 0918611 A1 EP0918611 A1 EP 0918611A1 EP 97931831 A EP97931831 A EP 97931831A EP 97931831 A EP97931831 A EP 97931831A EP 0918611 A1 EP0918611 A1 EP 0918611A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tube
- injection
- male element
- mold
- cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000002347 injection Methods 0.000 title claims abstract description 94
- 239000007924 injection Substances 0.000 title claims abstract description 94
- 238000004519 manufacturing process Methods 0.000 claims abstract description 24
- 238000007664 blowing Methods 0.000 claims description 37
- 238000005192 partition Methods 0.000 claims description 32
- 238000001816 cooling Methods 0.000 claims description 26
- 239000000463 material Substances 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 23
- 238000007493 shaping process Methods 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 238000003466 welding Methods 0.000 claims description 12
- 238000005520 cutting process Methods 0.000 claims description 11
- 239000002826 coolant Substances 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000004033 plastic Substances 0.000 claims description 9
- 229920003023 plastic Polymers 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 241001631457 Cannula Species 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 3
- 239000000498 cooling water Substances 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000004891 communication Methods 0.000 claims 1
- 238000009432 framing Methods 0.000 claims 1
- 229940090044 injection Drugs 0.000 description 57
- 239000000243 solution Substances 0.000 description 21
- 239000002775 capsule Substances 0.000 description 13
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- 238000010438 heat treatment Methods 0.000 description 5
- 238000000926 separation method Methods 0.000 description 5
- 239000010902 straw Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 239000004020 conductor Substances 0.000 description 4
- 241000237536 Mytilus edulis Species 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
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- 238000003379 elimination reaction Methods 0.000 description 3
- 238000010101 extrusion blow moulding Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 230000006698 induction Effects 0.000 description 3
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- 238000011084 recovery Methods 0.000 description 2
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- 230000000717 retained effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000003856 thermoforming Methods 0.000 description 2
- 238000013022 venting Methods 0.000 description 2
- 235000014066 European mistletoe Nutrition 0.000 description 1
- 101100384355 Mus musculus Ctnnbip1 gene Proteins 0.000 description 1
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- 235000012300 Rhipsalis cassutha Nutrition 0.000 description 1
- 241000221012 Viscum Species 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- 235000014171 carbonated beverage Nutrition 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/72—Heating or cooling
- B29C45/73—Heating or cooling of the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/071—Preforms or parisons characterised by their configuration, e.g. geometry, dimensions or physical properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
- B65D77/22—Details
- B65D77/24—Inserts or accessories added or incorporated during filling of containers
- B65D77/28—Cards, coupons, or drinking straws
- B65D77/283—Cards, coupons, or drinking straws located initially inside the container, whereby the straw is revealed only upon opening the container, e.g. pop-up straws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/0715—Preforms or parisons characterised by their configuration the preform having one end closed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/073—Preforms or parisons characterised by their configuration having variable diameter
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/075—Preforms or parisons characterised by their configuration having at least one internal separating wall
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/076—Preforms or parisons characterised by their configuration characterised by the shape
- B29C2949/0761—Preforms or parisons characterised by their configuration characterised by the shape characterised by overall the shape
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/076—Preforms or parisons characterised by their configuration characterised by the shape
- B29C2949/0761—Preforms or parisons characterised by their configuration characterised by the shape characterised by overall the shape
- B29C2949/0763—Axially asymmetrical
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/076—Preforms or parisons characterised by their configuration characterised by the shape
- B29C2949/0768—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform
- B29C2949/077—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform characterised by the neck
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/076—Preforms or parisons characterised by their configuration characterised by the shape
- B29C2949/0768—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform
- B29C2949/0779—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform characterised by the body
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/076—Preforms or parisons characterised by their configuration characterised by the shape
- B29C2949/0768—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform
- B29C2949/078—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform characterised by the bottom
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/079—Auxiliary parts or inserts
- B29C2949/0794—Dispensing spout
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
- B29C2949/22—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at neck portion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
- B29C2949/24—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at flange portion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
- B29C2949/26—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at body portion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
- B29C2949/28—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at bottom portion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C49/06—Injection blow-moulding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/25—Solid
- B29K2105/253—Preform
Definitions
- a filling tube which circularly includes an induction heating plate, a certain thickness of this neck is softened at the same time over a determined height and can be self-welded by pinching, or else performs the closure by applying to this orifice a tablet of the same plastic in a malleable state.
- this bottle is filled in by screwing its cap around the neck, easily gripped by the streaks on its edge.
- This type of bottle offers a guarantee of secure inviolability. (2em ⁇ Addition N ° 89.212 of June 25 1 6 ⁇ , Patent N ° 1.525.868 of November 30, 19 and Patent M ° l ./, 36.017 of March 10, 1965).
- any capacity of the neck type such as for example a bottle or a flask, manufactured using the extrusion-blowing technique, leads to more or less production. less waste. This comes from the stamping of the extruded parison, between the shells of a mold at the time of their confrontation, with between them the mentioned mandrel around which the tubular sheet is located. This waste is more or less significant, and when it comes to the manufacture of a bottle with several protruding tubes, it is more substantial in particular between these which are necessarily close together.
- the closing pressure of the molds must at the same time: - Stamp the protruding pipes and the circular line of lesser thickness.
- this technique does not make it possible to obtain, in a mold and in a single operation, a capacltalr ⁇ like a bottle or a bottle, 1 • neck constriction being an obstacle to the withdrawal of the molded element from the mold.
- the first consists in obtaining by injection a tube of the "test tube” type, the diameter of which is substantially that of the future neck.
- the applicant does not inject a tube of the "test tube” type, but a cylinder characterized in its upper end part; this one presents more
- FIG. 1 makes it possible to follow the progress of the various solutions claimed in the context of the present invention. Any efols this device is not included in the present invention, having been the subject by the applicant, of a Patent dated November 2, 1966, whose characteristics have similarities with the figured device.
- Each of the four secondary molds is designated respectively by the letters "A”, “B", “C” and “In the circuit with four phases or breaks. The applicant refers to the secondary mold" A "and its position at each of the four manufacturing phases.
- the "UN" phase is that of injection or "I".
- the "TWO" phase is that of using a heating sleeve or its equivalent, to maintain in the malleable state the part of the tube which will be sou fl .d signed "Me”.
- the "THREE” phase is that of using a shaping mold and a blowing mandrel or "Ms".
- Phase "four” is one in which, tube injected "I”, it was converted into a bottle for example, "Ma”, ⁇ ve hole is released or "L” by the opening of the shells Secondary mold which held it by its injected tubing.
- An injection device positioned under the main mold and or only under the male element, following its vertical movement from the bottom to the top and vice-versa.
- a heating sleeve which, from the low position, rises to enclose but without touching it, the body of the tube and the primer of tubes which, for their part, are retained between the shells in the position of confrontation of the secondary mold .
- the upper end face of this sleeve comes into confrontation with the lower face of the secondary mold.
- a mandrel with several blowing tubes in the High position descends vertically and its tubes penetrate into the corresponding orifices of the tubes retained between the shells of the secondary mold, without the need to touch their circular walls.
- each tube is surrounded by a flexible and reed pad: rubber, for example, thus avoiding an air leak which would compromise this blowing.
- the vertical movement of this mandrel is coordinated with the confrontation of the shells of the shaping mold and its low position determines its blowing action. Participate in the "FOUR" Phase
- the lateral opening 2 is used to fix a pipe which is connected either to a pump, to a water supply or to both. If the connection is made only with a pump in., it is connected to a recovery and cooling basin. (Element not shown).
- Each upper orifice 3 is connected to a pipe 4 having its soft threaded ends or comprising a threaded end.
- a rigid cannula 4b preferably metallic or made of resistant glass.
- the threaded cannula 4b passes through the receptacle l, to exit through the orifice 3a, where it is extended by a pipe which opens into the basin already mentioned but not shown.
- the cannula 4b opens onto the orifice of the hollow rod of the Mandrel but without penetrating therein, or else penetrates inside the hollow tube to arrive almost at the terminal face of the latter. In both cases, naturally after possibly the end piece of the pipe 4 has been screwed onto the orifice of these elements.
- the receptacle l will only comprise the orifice and from which a pipe 4 which opens, possibly by its threaded end, into one of the parts of this cavity , while a pipe 4, also screwed, leaves from the other part of this cavity and opens directly into the recovery and cooling basin to be taken up by the pump.
- This lightweight device allows:
- the pump flow can be modulated and the water supply can be cooled by pouring cooler water into the basin or directly on the pump and alternately.
- the temperature of the circuit water and that of the molds can be monitored by a thermostat thermostat, which is recommended. You can also use a coolant.
- FIG. 1 The Figure is a longitudinal section of a shell 5 of the secondary mold, and female 6 and male 7 elements of the main mold.
- the drawing of the hollow tube 12a closed at one end, which is introduced and fixed in 1 • male element 7.
- Figure a is in magnification, the longitudinal section according to Figure 3 " of the shell 5 of the secondary mold, and its wells 5a arranged.
- FIG. 4 is the cross section of a hemisphere of the male element 7 of Figure 3, this section being taken along line AA of Figure 3.
- - Figure 5 is the cross section of all of the elements of Figure 3, this section being taken along line BB of Figure 3.
- FIG. 6 is the longitudinal section of the injection tube in the molds used in Figure 3.
- the stretching phenomenon caused by the weight of the injected tube remained outside the shells 5 facing the secondary mold, and its maintenance in the malleable state from the Phase UN to Phase THREE according to Figure 1, although tiny, must be taken into account when manufacturing the main mold; on the one hand so that the possible difference in thickness of the injected wall is respected at the time of blowing and on the other hand to bring the internal tubing down as low as possible, among other things, with a minimum of swaging waste in the plane of joint, at the time of blowing in the mold forming the desired capacity.
- FIG. 7 is a view of one of the shells of a shaping mold characterized for shaping the body of a bottle, for example, and taking up the base of the protruding tubes of the injection tube shown in FIG. 6.
- FIG. 8 shows schematically and in elevation, with partial cutaway, a bottle obtained from the tube injected into the molds according to Figure 3, shown in Figure 6, which was blown into the shaping mold according to Figure 7. Hatched diagonally from left to right, the projecting pipes coming from injection between the shells 5 of the secondary mold according to FIG. 3, as well as the indirect three-way blow-out mandrel which is actually located on the upper end face of the secondary mold according to the "THREE" Phase.
- the tubing with the largest diameter can be located at the same level as the other two, and this in all solutions; but in this case, the flat and / or the circular notch will be removed and it will be fitted to the place, but at a preferably lower level, a circular line of lesser thickness with controlled weakness, by injection.
- the best level will be that of the tubing so as not to hinder the use of the central tubing, after it has been twisted on its circular line of controlled weakness, as suction straw.
- Its sealing, like that of the other two pipes, will preferably be by self-welding and pinching.
- FIG. 9 is a longitudinal section, according to another solution of the applicant, of the shell 5 of the secondary mold, the female 6 and male 7 elements of the main mold with in addition a mandrel comprising three hollow rods and their
- Figure 9a is in magnification, 1a longitudinal section according to Figure 9, e the shell 5 and openings made on the front face thereof and traversing it entirely.
- FIG. 11b is a vertical plan view of half of a pipe cut in the axis of its orifices D D "t D'D '0 its diameter preferably being double that that shown lia.
- Figure 12 is the longitudinal section of the injection pipe into the molds, and the hollow rod mandrel, used in Figure 9.
- FIG. 13 is a longitudinal section of the two co- -J "J skittles facing each other, of a shaping mold according to the invention and characterized to conform only to the body of a fia- co ⁇ for example and take the extra thickness of the base of the central and projecting tube shown in Figure 12.
- Each shell has a longitudinal partition, their front face has arranged grooves, which allow, at the time of their emßnt affront, to form a hollow tube.
- the partitions stop on the base of the protruding and central tube, to take up this base in excess thickness and ensure the connection and continuity between this protruding tubing obtained by injection and its extension obtained by stamping.
- FIG. 14 is a perspective view of a bottle obtained in the mold shown in » Figure 13. Dashed on the central tube, 1 portion of the base of the central tube which is taken up in excess thickness by stamping in at the same time as the formation of the integrated tubing. It stops near the bottom.
- - Figure 15 is a longitudinal section, according to another solution of the applicant, of the shell 5 of the secondary mold, the female 6 and male 7 elements of the main mold as well as a mandrel comprising four hollow rods with their cooling system , which is identical to that shown in Figure 11, but with four hollow rods to cool instead of the three.
- - Figure 1a is in magnification, the longitudinal section along Figure 15, of the shell 5 and the openings made on the front face thereof by crossing it entirely.
- Figure 17 is the same cross section of Figure 15, but limited to the lower hemisphere of the male element according to Figure 16.
- FIG. 18 is a longitudinal section of the injection tube into the molds of Figure 15, with the par- anticipation of the mandrel with four hollow rods.
- This tube according to the invention comprises a central separation, of small thickness, which leaves from its injection point to join one of the walls of the two projecting and central tubes.
- the injection limit of the protruding tubes practiced between the shells 5 of the secondary mold. Below these yer points, 1 inj ect ion was carried out between the upper front face of the male element 7 and the lower face of the shell 5 "with the participation of hollow rods.
- Figure 19 is a view of one of the shells of a shaping mold according to the invention, as actuated to conform the body of two bottles for example.
- This mold enables the base of the two central and protruding tubes to be taken up in excess thickness above the horizontal dotted line.
- This mold, and according to FIG. 18, dies the central part, on either side of the ée points, to complete the base of the protruding central tubes.
- each shell has a longitudinal partition which divides the interior of the cell in two.
- the front faces of these partitions are fitted with grooves which, when facing, form two channels extending from the two central and projecting pipes.
- a central and longitudinal edge makes it possible, by stamping, to cut in the middle, vertically vertically, the central separation of small thickness mentioned and visible according to Figure 18.
- a groove stops at a short distance from the bottom and makes it possible to constitute the lower orifice of each protruding tube which opens into the interior of each of the bottles.
- FIG. 20 shows schematically and in elevation with partial cutaway, two vials blown into the mold shown in Figure 19, and from the injected tube and shown in Figure 18. Hatched diagonally from left to right, the protruding tubes coming of injection between the shells 5 of the secondary mold according to FIG. 15a, as well as the four-way indirect blowing mandrel which is actually located on the upper end face of secondary mold according to the "THREE" Phase.
- - Figure 21 shows in vertical section the system and the method of softening the skirt of a closure cap resting on the lateral orifice of the right bottle according to Figure 20. This method is that of induction.
- - Figure 22 shows in vertical section the closure system of the capsule of Figure 21, from the bottom and softened of its skirt, the bottle having been positioned on a turntable or the entire device can rotate on himself.
- - Figure 23 is a plan view of the outer face of the same capsule comprising a semicircular line of reduced thickness preferably obtained by thermoforming with the capsule. In the accompanying drawing, the vertical section of this capsule showing the circular line of lesser thickness along line G G of this same figure, on the front side allowing not its lifting, but a partial depression sufficient to vent.
- FIG. 24 represents a vertical section of the shells of a mold for extrusion blow-molding by hollow needle, positioned horizontally in a merry-go-round of molds, the upper shell being able at the same time to separate from the lower shell to expel the blown capacitor, while continuously the lower shells receive a tubular mass of plastic material, and the electrodes suitably isolated from the mass of steel preferably, and which adhere thereto using for example a composite resin.
- the electrodes are intended for the passage of an HF (High-frequency) current.
- - Figure 25 is a cross section of the shells of this ⁇ rlutter mold and along line HH in Figure 24.
- This figure shows the system for bringing an H.F. current to the circular electrodes without using conductive wires for each of the molds of the carousel, these wires are completely eliminated and little: consequently elimination of the control rack where these wires ended up.
- These are replaced by a conductive rail, suitably insulated, traversed by a HF current at permanent intensity and swept by the flexible end of a conductive rod also flexible and suitably insulated.
- the conductor rail has a curved primer to allow smooth contact with said flexible end.
- This rail has a length determined by the distance traveled by a mold, the shells of which are facing each other, and the duration of the blowing in relation to the distance traveled during this blowing.
- the circular electrodes brought to a predetermined temperature leads the tubular mass, under the pressure of the blowing air, to flow on either side of their edge, which has the effect of circularly thinning the blown wall in this area and create at the edge, a circular line of lesser thickness with controlled weakness.
- the arrangement of the injection molds and their cooling system according to the solution shown in Figure 3 and also visible in Figures 3a, 4, 5 and 6, the Applicant uses two molds:
- a removable secondary mold with shells which is part of a merry-go-round of four molds according to the device of Figure 1.
- This mold is represented in Figure 3 by one of its shells 5, and detailed in Figure 3a which is magnification.
- a main mold composed of a female element 6, and its support and vertical mobility element 6a, by jacks not shown and of a male element 7 secured to the part 7a, which can move vertically by the elements 7b, thanks to cylinders not shown.
- the male element 7, consists inter alia, of two cavities.
- a cavity 8 extended in the shell 5, by a cavity 8a.
- a cavity 8 * extended in the shell 5, by a cavity 8 'a.
- a partition 9 (visible in Figure 4) separates the two cavities.
- a conduit 9a (visible in Figure 4), hollowed out in the partition 9 connects these cavities (parallel and horizontal dotted lines in this Figure 3).
- a closed tunnel 10 (seen Figure 4), is cut longitudi- nally in the partition wall 9.
- the base of the element 7 is hollowed out of a circular cavity 11. From the bottom of the latter leaves a circular tunnel 12, hollowed out longitudinally in the partition 9 (see Figure 4), threaded at the start.
- the bottom of the circular cavity 11 is provided with an injection point 13.
- the plastic material 14 is injected, inter alia, into the space between the wall of the hollow tube 12a and the wall of the tunnel 12, hollowed out longitudinally through partition 9.
- the hollow tube 12a acts as a male element
- the wall of the tunnel 12 which is part of the male element 7 acts as a female element.
- This arrangement makes it possible to obtain by injection only, and in one piece, the internal part and the external part of a tube which will be used later as a suction straw, for example, of a capacitor.
- this device facilitates lateral injection into this central tube.
- the channels 5a, 5b, and 5c arranged on the confrontation face of the shell 5 which will form, during the confrontation of the shells 5 and 5' of the wells .
- the male element 7 is present beforehand, in the form of a cylindrical mass, preferably made of steel, as well as for all of the applicant's solutions.
- This mass according to the invention is longitudinally greater than that of the capacity to come according to stage THREE of FIG. 1, for example a bottle intended to contain any drink such as fruit juice or other carbonated drinks for example.
- this capacity and in other forms can be used to contain and spray any liquid; or even in the automotive industry by example to contain certain fluids, the projecting tubes may be at the bottom and the bottom of the capacitor at the top, with the appropriate arrangements.
- FIG. 4 represents a hemisphere of the male element 7, according to the section ⁇ in Figure 3.
- This cylindrical mass is separated longitudinally into two hemispheres, by conventional methods in this area.
- a partition 9a which causes the cavities 8 and 8 'to communicate in their upper part (in dotted lines in FIG. 3).
- a tunnel 10 preferably semi-circular, is dug longitudinally through this partition 0, ais which does not reach the lower end face of this mass.
- the starting orifice of this tunnel 10 is filled in, giving it back its initial appearance.
- a conduit 10a is hollowed out in the partition 9 and which opens into the tunnel 10 (in dotted arrow in FIG. 3).
- the conduit 10b also opens into the tunnel 10 (in dotted arrow in FIG. 3).
- this or these elements 7 ′ will in turn be integral with the wall 7 of the element male on each side of the cavity 8 and 8 and / or 8 '(not shown in Figures 10, 16 and 17.) And for the same reason, the element (s) 7' will be drilled at least, with an opening 7 "which will also serve to allow the passage of the cannula b.
- the two hemispheres are then brought together again by arc welding for example, taking beforehand all the usual precautions in the matter and known to those skilled in the art, so that the elements machined on each hemisphere s face each other very closely, completely and flawlessly.
- the new mass is no longer exactly cylindrical due to the loss suffered during its separation, hence the reason for having used a cylindrical mass with a larger diameter.
- a tunnel 12 is passed longitudinally in the partition 9, which passes through it and which is threaded at the start.
- a hollow tube 12a, already defined in FIG. 3, of a diameter smaller than the tunnel 12 is introduced therein and screwed into the orifice of this tunnel 12, while passing through it so as to be protruding and visible in FIG. 3.
- the injection point 13 formed at the bottom of the cavity 11 is visible in FIG. 3.
- the injection of the internal tube 16a one of the starting points of the injection, will not only allow this injection, but facilitate that of the side walls joining the projecting tubes. 15 and 17.
- the length of the internal tube 16a is inversely proportional to the depth of the circular cavity 11, 1e tube 12a according to this logic, as well as the tunnel 12.
- FIG. 7 represents the shell 20, of a mold for shaping by blowing, in dotted lines the tube represented in FIG. 6 without the sail lantes tubing, except the base of the tubing 16 taken up in excess thickness, the contours of the wall 14a of the bottle according to the example chosen, its bottom 14b.
- This mold is characterized to conform only to the body of a given capacitor.
- the blowing is carried out indirectly by the three projecting tubes according to Figure 6, from their orifices located at the terminal part of the upper face of the shell 5 ⁇ t of its twin shell in confront each other.
- the blowing pressure is distributed uniformly inside this bottle, there is no risk that the internal tubing 16a is pressed against the internal wall 14a, that it does not flatten or see it inflate.
- FIG 8 which shows schematically and in elevation with partial cutaway, a bottle with its wall 14a.
- This latter protruding tube being used as a vent at the time of use, as a suction straw for the central tube 16, naturally after its separation, by twisting, of the parts located above the thinner lines and which constitute as many circular lines with controlled weakness.
- the part of the central tube 16, located below the dotted line, has been taken up extra thickness and mentioned below.
- This mandrel 22 comprises three hollow rods. This part of Figure 9 should be seen in Figure 11 which is a fractioned magnification, with the shell 5 of the secondary mold. It should be noted however that the lower part of the hollow rod 22b (referenced in Figure 11) performs its role of male injection element, not in the shell 5 and its opposite the secondary mold, but in a fitted location. on the terminal and front face of the male element 7. In this solution also a fraction of the male element in question plays the role of a female element, and without interfering with its vertical movement from top to bottom at the end of 1 inje et ion. We find the female element 6 eh its support and mobility part 6a.
- the male element 7 with the piece of so lidar isat ion 7a and its opening elements 7b.
- the male element 7 is hollowed out of a single cavity 8 which comprises, as already mentioned, at least one horizontal element 7 ′, which is also made an orifice at the less.
- This element 7 is secured and bears with the wall 7 of the male element bordering the cavity 8.
- a threaded orifice 8b is made.
- the hollow rods are dotted 22a, 2b and 22c which do not touch the wall of each of the channels, mai ⁇ come in confrontation by their end face, with the end face of the male element 7.
- Figure 10 shows in section along the line CC of Figure 9, the male element 7, once finished its machining - ⁇ which is carried out from a cylindrical mass similar to that used and shown in Figure '1.
- the applicant digs on the face of each hemisphere a single cavity 8, (the horizontal element 7 'and its orifice 7 "according to Figure -J ⁇ J 9, are not shown in this Figure )
- the two hemispheres are joined again by welding and taking the same precautions as for that of Figure 4, and machined to bring it to the desired diameter.
- a threaded opening 8b is then practiced under the same conditions as for those of Figure 3.
- FIG 11 is an enlargement of the fractional representation of the upper part of Figure 9.
- the protruding tube 15 with its flat 18 have been designed by the prior introduction into the formed chimney, hollow rod 22a of the mandrel 22, while that the projecting tube 16, with its line of reduced thickness 19 were designed by the introduction beforehand into the formed chimney, of the hollow rod 22b of the same mandrel. It is the same for the tubing 17 and its line of lesser thickness 19a, the hollow rod 22c.
- the formation of these chimneys is explained in Figure 9a.
- Each of the aforementioned hollow rods is fixed through the lower bar of the mandrel 22, and is sufficiently projecting to have their outer ends threaded.
- FIG. 11a is a plan view of a pipe 4a, metallic and preferably steel, which has been bent by known means and is threaded (but not shown) at its ports 4a 'and 4a ".
- Figure 11b shows a plan view, half of a pipe 4, of the same material; beforehand and in its entirety (but not shown) which has been bent using the same technique, to then be cut in half along the axis of its orifices 4 'and. 4 ", along the cutting line DD to D'D ', ie along the longitudinal median plane of the bent part.
- Figure lie shows a plan view and in its entirety, the pipe 4 threaded from its orifices 4 'and 4 "which has been cut in two (I) and (II) along its bisector E E.
- FIG. 11d is a plan view according to the invention, of the bent tube 4 with its orifices 4 'and 4 "and characterized to include inside another bent tube 4a shown in dotted lines with its orifices 4a' and 4a", having the same angle preferably. These two pipes are threaded from their holes (but not shown).
- Figure 11 shows in the context of the present invention, plan view with a partial cutaway and according to Figure 3 and its accompanying drawing, the tube 12a in which is located the rigid cannula 4b.
- the bent pipe 4 is screwed in a preferred manner and simultaneously to the tube 12a, as well as the bent pipe 4a, with the cannula 4b; on the opposite, a straight pipe 4a is screwed, to the bent pipe 4a, and a straight pipe 4, to the bent pipe 4. It is important that the volume of the coolant circulating first in the pipe 4 and 4 'is preferably identical to the volume circulating on the return in the cannula 4b then in the bent pipe 4a and finally in the straight pipe 4a, to avoid overpressure and have good circulation of the liquid used in the cooling circuit.
- Figure 12 shows the injection tube in the molds shown following Figure 9.
- the body of this tube 14 its projecting tube 15 with its flat 18, the projecting and central tube 16 with its line of lesser thickness 19 , with below the dotted line the part of this tubing which will be taken up in excess thickness of connection between the shells of the shaping mold according to Figure 13, and the projecting tubing 17 with its thin line 19a.
- Figure 13 is a longitudinal section of the facing shells 20 and 20a of the shaping mold according to the invention.
- the body, of the bottle taken for example, 14a and 14a ' is separated over almost its entire height by an integrated tube 16b, with the exception of the bottom 14b between the end of the partitions 16b' and 16b ".
- This tube 16b comes from the fittings made on each of the shells 20 and 20a, according to the explanations provided in the first presentation of this Figure, and comprising a difference in its manufacture, with respect to the applicant's prior patent.
- Figure 14 which is a perspective view of the blown bottle in the mold shown in Figure 13, the mandrel not shown is the same as that shown in Figure 8.
- the body of this bottle 14a and 14a ' which is separated over the entire height of the integrated tubing 16b, and the bottom of the bottle 14b, slightly curved for a better seat (like the one shown in
- the mode of use is the same as that described in support of Figure 8.
- the dotted lines parallel to the base of the projecting tube 16 and between them, represent what was injected with the help of the male element 7, and not the shells of the secondary mold, represented by the shell 5, here also playing a role of female element. This portion was thickened during the confrontation of the shells 20 and 20a of Figure 13, to make the connection and ensure the stamping, then the blowing of the integrated tubing 16b.
- Figure 15 shows another of the applicant's solutions. All the molds used do not have a round shape, but a helical shape, with variations in thickness over a vertical and continuous area, which will be explained and developed in Figure 16.
- the mandrel 22 with double bar 22 'and its columns 22 " is made up of four hollow rods, these have the same functions as the hollow rods described after Figures 9 and 11. They are arranged differently between the shell 5 and its opposite (never shown) the secondary mold. Two rods are arranged laterally: 22a and 22a '. The other two rods are arranged in the center: 22b and 22b'.
- the elements of shell 5 will be described with Figure 15a. elements of the protruding tubes will be with Figure 18.
- 'element m 7 comprises two separate cavities 8 and 8 'which do not communicate therebetween and each having as already mentioned, at least one horizontal element 7 'in which an orifice 7 "is made at least.
- This element 7' is secured and bears with the wall 7 of the male element bordering each of the cavities 8 and 8 '. Between these and the wall 7 of the male element is injected with the material 14, through the central injection point 13.
- the material injected at this location must fulfill several functions, one of which is to facilitate the injection of the central tubes, around the hollow rods 22b and 22b '
- the other injection points 13 are preferably arranged as a tripod surrounding each cavity, naturally between the female 6 and male 7 shells.
- FIG. 15a is an enlargement of Figure 15, showing the shell 5, with side and identical channels 5a, and two central and identical channels 5b. On the first two there is an edge 5d and on the other two an edge 5b '.
- Figure 16 which is a plan view, along the section FF of Figure 15, of the entire male element 7, seemed necessary to the applicant to explain its design and its implementation.
- a steel block is preferably used. This will, for example, be ovoid in shape or preferably approach it. It is separated into two identical masses by a longitudinal section and perpendicular to its narrower part. The external and central part of each half is hollowed out, to form a constriction 9. One digs inside from the cutting face and on either side of the constriction to form the cavities 8 and 8 '. As for the eurtriè- re 9b, it will be preferable and easier to practice the digging in a suitable manner and known to those skilled in the art, from the cutting face of the choked part of each half .
- each cavity 8 and 8 ' is located the rigid cannula 4b, but we cannot see the element 7 'and its orifice 7 " " in this plan view, installed in each of the cavities.
- the injected material 14 also includes in the loophole 9b.
- the female element 6, must also to be machined. A mass of steel, preferably re and angular, with a greater width than the female element will be, to take account of the loss at the time of its separation into two equal parts in the direction of its length, longitudinal section as for those of FIGS. 4 and 10.
- each half is carried out, with the negative of the shape of the male element 7, taking into account the necessary injection space and the thickness that we want to give to the injected wall.
- Figure.17 is the section along FF of Figure 15, but of the single male element 7, the cavities 8 and 8 ', the partition 9 and the loophole 9b, as well as the rigid cannulas 4b.
- Figure 18 shows, in longitudinal section, the tube for injection into the molds according to Figure 15 and according to the sectional plane along the line FF of the latter Figure.
- Figure 19 shows the shell 20 of a blowing shaping mold, characterized to blow only the body of two capacitors, for example two bottles.
- the central part consists of four parallel grooves 24 and 24 'and separated by a sectioning edge 23, between each of the grooves 24 and 24' a semi-circular channel is arranged, which during the confrontation of the two mold shells, represented by its shell 20, a tube will be formed which will have the same diameter as the projecting tubes 16 and 16 '.
- This confrontation will make it possible to stamp, over almost its entire longitudinal height, the material 14 injected into the loophole 9b of the partition 9. Due to its thinness and the very reduced stroke, due to the strangely machined, the longitudinal cutting by the knife 23, will be made easy.
- the race of confrontation of the grooves 24 and 24 ', with their opposite, also shorter, will allow not to exert too much tension on the material
- Figure 20 shows the two bottles obtained from the tube injected into the mold of Figure 15, and shown in Figure 18 using a blowing mandrel with four rods. These bottles are represented schematically and in elevation, with partial cutout.
- the central projecting tubes 16 and 16 ' with their line of lesser thickness 19 and 19', each extended by a tube 16a and 16a ', the orifice 16 "of which opens near the bottom of each of the bottles.
- Figures 21 and 22 are to be seen jointly, especially since in reality they are joined together. The applicant presented them separately so as not to have a bushy figure. However, as the explanations are provided, the applicant will put the explanations on each piece concerned in parenthesis.
- Figure 21 shows in vertical section the device which allows softening by induction part of the skirt 30 'of a capsule 30.
- An arm 28 moving vertically by cylinder not shown has at its base a ring 28' of a sufficient diameter to surround without touching the skirt 30 'of the capsule 30.
- Said capsule covers the tubing 15' and surrounds by its skirt 30 'the notch 19b' of the bottle shown in Figure 20.
- Figure 22 shows in vertical section the device which allows the softened part of the skirt 30 'to enter into the notch 19b' of the tube 15 '. (This assembly remains in the fixed position and is rotated on itself by a device, in much smaller size, similar to that which moves the carousel of FIG. 1, and which leaves from part 31 and in its external environment).
- the part 31 ' which contains two jacks 31a and 31a' with in the middle of the part 32 'which is used in cooperation with the jacks 31a and 31a', makes it possible to move the arms 32a and 32a forward or backward. further back to allow the ring 28 to descend and rise without obstructing it.
- the terminal part comprising, in a protruding cell 33 and 33 ', a ball rolling on itself, is fixed to a horizontal part, and the difference between each of these parts corresponds to the surface taken up by the ring 28 'plus a small safety distance).
- the arms 32a and 32a ' After removal of the ring 28 'once the part of the skirt 30' has softened, the arms 32a and 32a 'are brought together by the jacks 31a and 31a', the balls included in the protruding cells 33 and 33 ', make it penetrate the softened part of the skirt 30 'in the notch 19b' of the tube 15 '.
- the bringing together of the arms 32a and 32a 'by interposed jacks activates the pivoting part, not shown, and rotates all of the parts in FIG. 22 on itself, to make this softened part of the skirt circularly penetrate. 'by means of balls 33 and 33'.
- the capsule is not intended to be removed, this anchoring is final.
- Figure 23 shows a plan view, the outer surface of the capsule 30.
- the latter preferably manufactured by thermoforming, comprises on itself, obtained by means, now conventional, a line forming an unfinished circle for example 30 ".
- this capsule 30 is fixed as indicated in support of FIGS. 21 and 22, it suffices to the user, by exerting manual or mechanical pressure (key or other) to detach on this line, which constitutes a line with controlled weakness, all or part of the surface of the capsule 30, to obtain a venting effect and facilitate the use of the protruding tube 16 'after removal by simple twisting of its upper part from the thinner line 19'.
- the section along line GG of the same figure represents the capsule 30, its skirt 30 ′ and its thinner line 30 ′′.
- Figure 24 represents in vertical section the shells 34 and 34a of an extrusion-blow molding mold hollow needle 35.
- the shell 34a positioned horizontally, is part of a train of molds moving vertically in a permanent roundabout.
- the shell 34 while performing the same circuit, is positioned above the shell 34a. bring it into confrontation with the shell 34a, as soon as the latter entails a certain quantity of a tubular mass 37, continuously extruded.
- a device installed on the shell 34 actuates a hollow needle 35, which penetrates into the tubular mass 37 and blows it in the shape of the capacitor corresponding to the mold.
- the request Deur indicates that this type of manufacturing requires, after ejection of the capacity, to separate the injection cap from the neck and from its orifice itself.
- This technique excludes the possibility of thinning a circular line on this neck by absence of stamping with a blowing shaping mandrel, hence the patent of April 13, 1970.
- the applicant provides a solution which eliminates the obstacles encountered in applying the above-mentioned patent.
- the electrodes 36 and 36a are fixed directly to each shell 34 and 34a, using a composite resin of the type used in the dental field, which at the same time makes it possible to isolate it from the mass of shells. The edges of these electrodes are protruding.
- Figure 25 is a cross section along the line HH in Figure 24. It shows on each of the shells 34 and 34a the conduit 38 and 38 'formed in each of them, and which leads to the electrodes 36 and 36a.
- a cannula of a resistant glass not visible in the figure. The cannulas will have no pressure to undergo due to the clash of the mold shells.
- a threaded rod 39 and 39a of a good conductive material, is introduced, each of these rods is screwed into the electrodes 36 and 36a previously fitted for this purpose.
- These rods of a certain length to have a certain flexibility, are bent in the direction of one another. At each end is fixed a plate 39 'and
- This rail-shaped electrode 41 is fixed for example on porcelain supports 42 of the type used for the transport of high voltage current. Each of these supports is held by a piece 43, fixed if necessary and preferably to the ground.
- the contact between the shell 34a and the rail 41, should preferably start before the confrontation with the shell 34, which will allow from this confrontation, to obtain the HF circuit and the rise in temperature of the electrodes 36 and 36a, and this at the same time as the blowing b begins .
- the length of this rail is determined by the speed of the circuit, therefore the distance traveled during the blowing time, taking into account the distance traveled before the confrontation and from from the moment when the contact l 1 between the part 40 'and the rail 41 is desired, by the shell 34a only.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
Claims
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9608141A FR2750360B1 (fr) | 1996-06-28 | 1996-06-28 | Moule d'injection permettant la fabrication, sans matricage, d'un tube cylindrique a tubulures saillantes et interne |
| FR9608141 | 1996-06-28 | ||
| FR9704352 | 1997-04-09 | ||
| FR9704352 | 1997-04-09 | ||
| PCT/FR1997/001162 WO1998000280A1 (fr) | 1996-06-28 | 1997-06-30 | Moule d'injection permettant la fabrication, sans matriçage, d'un tube cylindrique a tubulures saillantes et interne |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP0918611A1 true EP0918611A1 (fr) | 1999-06-02 |
Family
ID=26232801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP97931831A Withdrawn EP0918611A1 (fr) | 1996-06-28 | 1997-06-30 | Moule d'injection permettant la fabrication, sans matri age, d'un tube cylindrique a tubulures saillantes et interne |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0918611A1 (fr) |
| WO (1) | WO1998000280A1 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2807963A1 (fr) * | 1999-04-23 | 2001-10-26 | Paul Nataf | Moules en maneges, moules mobiles a postes fixes, d'injections simultanees avant solidarisation d'elements complementaires comme une fermeture monobloc-paille d'aspiration pour capacitaires avec boissons |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR95492E (fr) * | 1965-03-24 | 1971-01-15 | Nataf Paul | Corps creux en matiere plastique et moule a coquilles permettant de les fabriques. |
| FR93060E (fr) * | 1965-03-24 | 1969-02-07 | Nataf Paul | Corps creux en matiere plastique et moule a coquilles permettant de les fabriquer. |
| FR88270E (fr) * | 1965-03-24 | 1967-01-06 | Corps creux en matière plastique et moule à coquilles permettant de les fabriquer | |
| DE3828383A1 (de) * | 1988-08-20 | 1990-03-15 | Agfa Gevaert Ag | Spritzgussform |
| CH676572A5 (fr) * | 1988-12-07 | 1991-02-15 | Claropac Ag |
-
1997
- 1997-06-30 EP EP97931831A patent/EP0918611A1/fr not_active Withdrawn
- 1997-06-30 WO PCT/FR1997/001162 patent/WO1998000280A1/fr not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO9800280A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO1998000280A1 (fr) | 1998-01-08 |
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