JPH0450087Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a vulcanization jig device for an O-ring having an overall rectangular shape.

[Conventional technology and its problems]

Conventionally, when forming O-rings that are entirely rectangular, a large number of molds are required to manufacture O-rings of various sizes, which increases costs and requires a large number of molds. There was also the problem of finding a place to store it.

This invention solves these conventional problems and
It is an object of the present invention to provide a vulcanization jig device for a rectangular O-ring that can easily and accurately form O-rings of various sizes.

[Means for solving problems]

The vulcanizing jig device of the present invention for an O-ring having a rectangular shape as a whole has rails disposed perpendicularly to each other in a plan view, and a device that slides along the rails and cures the unvulcanized portion of the O-ring. a lower mold having a block body having a fitting groove into which the lower half is fitted; a lower mold having rails disposed perpendicularly to each other when viewed from above; an upper mold having a block having a fitting groove into which the upper half of the unvulcanized part of the O-ring is fitted; heating the block of the upper and lower molds to fit into the fitting groove; and a heating plate for vulcanizing the unvulcanized portion.

[Effect]

If configured as described above, the end faces of the overall U-shaped O-rings whose ends are formed in the unvulcanized parts are made into contact shapes, making the whole rectangular shape, and the unvulcanized ends of both O-rings are made into a rectangular shape. By fitting the vulcanized parts into the fitting grooves of both block bodies of the upper and lower molds and heating the block bodies with a heating plate, the unvulcanized parts at the ends are vulcanized and brought into contact. The end faces can be joined to form a rectangular O-ring as a whole. In addition, four O-rings each having an overall L-shape whose ends are formed in the unvulcanized part are combined to form a rectangular shape as a whole, and as described above, the unvulcanized part is fitted into both blocks of the upper and lower molds. Fit it into the matching groove,
By heating the block body with a heating plate, the unvulcanized portions at each end are vulcanized, and an O-ring having an overall rectangular shape can be formed in the same manner as described above.

In addition, since the upper and lower molds can slide along rails that are arranged orthogonally to each other when viewed from above, they can be used with U-shaped O-rings or L-shaped O-rings of various sizes. The unvulcanized end portion of the O-ring can be fitted into the fitting groove of the block body of the upper and lower molds while maintaining the overall shape of the O-ring. In other words, according to this apparatus, it is possible to form O-rings having various sizes and having an overall rectangular shape.

〔Example〕

Hereinafter, the present invention will be explained in detail based on drawings showing embodiments.

FIG. 3 shows the vulcanizing jig device of the present invention, which includes upper and lower molds 1 and 2, and heating plates 3 and 4 attached to the upper and lower molds 1 and 2. We are prepared.

As shown in FIG. 1, the lower mold 2 slides along the rectangular base 5, the rails 7a and 7b attached to the upper surface 6 of the base 5, and the rails 7a and 7b. Block bodies 8a, 8b, 8c, 8d,
The rails 7a and 7b are rod-shaped bodies with a rectangular cross section, and are disposed perpendicularly to each other when viewed from above, and their intersecting portions are formed into protruding portions 9 that protrude upward. There is. Further, grooves 10a and 1 along the rails 7a and 7b are provided on the upper surface 6 of the base 5.
0a, 10b, 10b, 10c, 10c, 10
d, 10d are formed. This groove 10a, 1
As shown in FIG. 3, 0a... is an inverted T-shaped groove with a small diameter upper opening, and grooves 10a, 10a extend from the left edge 11 of the base plate 5 to the rail with the rail 7a in between. 7b and grooves 10b, 1
0b extends from the right edge 12 of the base 5 to the rail 7b with the rail 7a in between, and the grooves 10c and 10c extend from the rear edge 13 of the base 5 to the rail 7 with the rail 7b in between.
a, and the grooves 10d, 10d reach from the front edge 14 of the base 5 to the rail 7a with the rail 7b in between. Note that the grooves 10a, 10a, the grooves 10b, 10
b, the grooves 10c, 10c and the grooves 10d, 10d are parallel to each other, and the groove 10a on the rear edge 13 side
and the groove 10c on the left edge 11 side are perpendicular to each other, and the front edge 1
The groove 10a on the 4 side and the groove 10d on the left edge 11 side are orthogonal to each other, the groove 10d on the right edge 12 side and the groove 10b on the front edge 14 side are orthogonal to each other, and the groove 10b on the rear edge 13 side and the groove 10b on the right edge 12 side are orthogonal to each other. It is perpendicular to the side groove 10c.

Thus, the block body 8a slides along the rail 15a on the left edge 11 side of the protruding portion 9 of the rail 7a as indicated by arrows A and B, and the block body 8b slides along the right rail 15 on the right edge 12 side of the protruding portion 9 of the rail 7a as indicated by arrows A and B.
The block body 8c slides along the rear rail 16a on the rear end 13 side of the protruding portion 9 of the rail 7b as shown by arrows C and D, the block body 8c slides along the rear rail 16a on the rear end 13 side of the protruding portion 9 of the rail 7b as shown by arrows E and F, and the block body 8d slides along the front rail 16a on the front end 14 side of the protruding portion 9 of the rail 7b as shown by arrows G and F.
It slides like H.

That is, the block body 8a includes a rectangular parallelepiped-shaped main body 18a having a groove 17 (see FIG. 3) at the center of the lower end, guide members 20a, 20a integrally connected to the main body 18a, and Block 8a
Fixing part 19a, 1 for fixing in a predetermined position
9a, and the concave groove 17 of the block body 8a is slidably fitted into the left rail 15a as shown by arrows A and B. A semicircular fitting groove 23 in which the lower half of the O-ring 22 is fitted extends along the longitudinal direction at the center of the upper surface 21a of the main body 18a.
A is recessed. Furthermore, the guide member 20a,
20a has an upper surface 25a on the upper surface 2 of the main body portion 18a.
It consists of a rectangular parallelepiped with a series of rising walls 24a that stand higher than 1a, the lower surface is flush with the lower surface of the main body 18a, and the dimension from the upper surface 25a to the upper surface 21a of the main body 18a is Fitting groove 23
The depth dimension of a is set to be the same as that of the rising wall 24a, and the inner surface of the lower end of the rising wall 24a is formed into a curved portion 26a,
The radius of curvature of the curved portion 26 is set to be the same as the radius of the fitting groove 23. Moreover, the fixed part 19a,
19a includes small block bodies 27a, 27a connected to the main body 18a, and small block bodies 27a, 27a.
The head portion 31 of the bolt 29 of the fixing members 28a, 28a slides into the large diameter portion 32 of the groove 10a, 10a, respectively. It can be inserted freely.

Therefore, the block body 8a configured as described above
are fixing members 28a, 2 of fixing parts 19a, 19a.
8a are not fixed (bolts 29 and nuts 30 are not tightened), the main body part 18a
and guide members 20a, 20a and fixed parts 19a, 19
a slides along the left rail 15a of the rail 7a as shown by arrows A and B, and the fixed part 19
If the fixing members 28a and 28a of a and 19a are fixed (tighten the bolts 29 and nuts 30),
The block body 8a can be fixed at any position.

Therefore, the block body 8b
The rising walls 24b of the guide members 20a, 20b of the block body 8a are provided at positions opposite to the left and right sides of the guide members 20a, 20a of the block body 8a, so a description thereof will be omitted. Note that 18b is the main body portion 18 of the block body 8a.
a, 19b is the fixed part 19a of the block body 8a.
20b is a guide member 20a of the block body 8a.
21b is attached to the upper surface 21a of the main body part 18a of the block body 8a, and 23b is attached to the upper surface 21a of the main body part 18a of the block body 8a.
8a, and 25b is the block body 8a.
26b is on the upper surface 25a of the guide member 20a of the block body 8a, and 26b is on the curved part 26a of the guide member 20a of the block body 8a.
27b is a small block body 27a of the block body 8a.
In addition, 28b corresponds to the fixing members 28a of the block body 8a, respectively.

Therefore, this block body 8b is fixed to the fixed part 19.
When the fixed parts 28b and 28b of the rails 7a and 19b are not tightened, the main body parts 18b and 18b, the guide members 20b and 20b, and the fixed parts 19b and 19 are integrally connected to the right rail 15b of the rail 7a as shown by arrows C and D.
The block body 8b can be fixed in any position by sliding along the block body 8b and tightening the fixing members 28b, 28b of the fixing parts 19b, 19b.

Furthermore, since the guide members 20a and 20b of the blocks 8a and 8b are omitted from the blocks 8c and 8d, respectively, their explanation will be omitted.

That is, the block body 8c can slide along the rear rail 16a as shown by arrows E and F, and can be fixed at any position.
d can slide along the front rail 16b as shown by arrows E and F, and can be fixed at any desired position.

Note that the left and right rails 15a, 15b and the front and rear rails 16a, 16b are set to have the same height dimension, and the main body parts 18a, 18b, 18c, 18d and the protruding part 9 of the block bodies 8a, 8b, 8c, 8d are set to the same height. The height dimension is set to .

Next, as shown in FIG. 2, like the lower mold 2, the upper mold 1 includes a base 33, rails 34a and 34b attached to the lower surface 43 of the base 33, and the rail 3.
Block body 35 sliding along 4a, 34b
a, 35b, 35c, and 35d, and similar to the rails 7a and 7b, the rail 34
The rails 34a and 34b are arranged perpendicularly to each other when viewed from above, and each of the rails 34a and 34b is a rod-shaped body with a rectangular cross section, and the intersecting portion thereof is formed into a protrusion 36 that protrudes downward. ing. Furthermore, grooves 37a, 37 similar to the grooves 10a, 10a... formed in the base 5 of the lower mold 2 are formed on the lower surface 34 of the base 33.
a, 37b, 37b, 37c, 37c, 37d,
37d is formed.

Therefore, the block bodies 35a, 35b, 35
c and 35d are the block bodies 8c and 35d of the lower mold 2, respectively.
Something similar to 8d is used. In other words,
Each block body 35a, 35b, 35c, 35
d is a rectangular parallelepiped-shaped main body portion 38a, 38b, 38 having a groove 62 (see FIG. 3) at the center of the lower end.
c, 38d, and a pair of fixing parts 39a, 39 for fixing the block bodies 35a... in predetermined positions.
b, 39c, and 39d, and the lower surface 51a of each main body portion 38a has a semicircular fitting groove 50a along the longitudinal direction in which the upper half of the O-ring 22 is fitted. ...is grooved.

Therefore, the block body 35a has the fixed parts 39a,
39a, when the fixing members 40a, 40a (consisting of bolts 41 and nuts 42) are not fixed, the left edge 44 of the base plate 33 is lowered from the protrusion 36 of the rail 34a.
The fixing member 4 of the fixed portions 39a, 39a slides along the left rail 45a as shown by arrows G and H.
If 0a and 40a are fixed, the block body 35a
can be fixed at any position. In addition, when the fixing members 40a, 40a of the fixing parts 39b, 39b are not fixed, the block body 35b moves along the right rail 45b on the right edge 46 side of the base 33 from the protruding part 36 of the rail 34a as shown by arrows J and K. A fixing member 40 for sliding and fixing parts 39b, 39b
By fixing b and 40b, the block body 35b can be fixed in any position. Further, when the block body 35c does not fix the fixing members 40c, 40c of the fixing parts 39c, 39c, the rail 3
The fixing members 40 of the fixing parts 39c, 39c slide along the rear rail 48a on the rear end edge 47 side of the base plate 43 from the protruding part 36 of the base plate 4b as shown by arrows L and M.
By fixing the blocks 35c and 40c, the block body 35c can be fixed at any desired position. Further, the block body 35d is attached to the fixed portions 4 of the fixed portions 39d, 39d.
When 0d and 40d are not fixed, the rail 34
sliding along the front rail 48b on the front edge 49 side of the base end 43 from the protrusion 36 of b as shown by arrows N and O;
and a fixing member 40d of the fixing parts 39d, 39d,
By fixing the block 40d, the block body 35d can be fixed at any desired position.

Note that the left and right rails 45a, 45b and the front and rear rails 48a, 48b are set to the same height dimension,
In addition, block bodies 35a, 35b, 35c, 35
The main body portions 38a, 38b, 38c, and 38d of d and the protruding portion 36 are set to have the same height dimension.
Furthermore, as shown in FIG.
The upper surface is set so as not to come into contact with the lower surface 43 of the upper mold 1.

The bases 33, 5 of the upper and lower molds 1, 2 are provided with the block bodies 8a,
8b, 8c, 8d, 35a, 35b, 35c, 3
5d, the above-mentioned heating plates 3 and 4 are attached.

Therefore, according to the device configured as described above,
Each block body 8a of the lower mold 2 is connected to each rail 7a,
7b, the lower half of each unvulcanized part of the overall rectangular O-ring 22 with an unvulcanized part in the middle part of each side is inserted into the fitting groove 23a of each block body 8a...
At the same time, each block body 35a of the upper mold 1 is slid along each rail 34a, 34b, and the fitting groove 50a of each block body 35a is fitted.
corresponds to the unvulcanized part, as shown in Figure 3,
The upper surface 21a of the block body 8a of the lower mold 2, and
The lower surface 51a of the block body 35a of the upper mold 1
and , and press the upper half of the unvulcanized part into upper mold 1.
The lower half of the unvulcanized portion is fitted into the fitting groove 50a of the block body 35a of the lower mold 2, respectively, and the lower half of the unvulcanized portion is fitted into the fitting groove 23a of the block body 8a of the lower mold 2. While pressing both upper and lower molds with a press machine etc., each block body 8a..., 3 is pressed using both heating plates 3, 4.
If 5a... is heated, the unvulcanized portion is vulcanized.

However, as shown in Figure 4, there are unvulcanized parts on each side.
By forming the overall rectangular O-ring 22 having Ma..., it is possible to form overall rectangular O-rings of various sizes according to the apparatus of the present invention.
That is, for example, unvulcanized parts Ma, M or unvulcanized parts
The O-ring 22 is cut at Md and Mi to form a U-shaped O-ring 22a as shown in FIG.
If the end surfaces of O-rings 22a and 22a are in contact (in the illustration, the end surfaces are separated from each other, but in reality, they are in contact) and the entire body is a vertically long rectangle, the device of the present invention can , 22a can be connected at both ends, which are unvulcanized parts, to form an overall vertically elongated O-ring. In addition, 2 of the overall U-shaped O-ring rectangle 22b, which is the remaining part in the above case, is
If the entire O-ring is made into a horizontally long rectangle as shown in FIG. 5, a horizontally long rectangular O-ring can be formed as a whole. Furthermore, the unvulcanized parts Ma and Mo of the O-ring 22 are
If the O-ring 22c is cut to form an O-ring 22c having an overall L-shape, it is possible to form an O-ring having an overall rectangular shape with seams on each side, as shown in FIG. In this case, it is also preferable that the O-ring 22 has each corner portion to form an O-ring 22c having an overall L-shape. That is, the unvulcanized parts Md and Mf, the unvulcanized parts Mg and Mi, and the unvulcanized parts M and Mn are cut, respectively.

In other words, this O in various unvulcanized parts Ma...
Cut the ring 22 and make the entire U-shaped O-ring 2.
If the O-ring 2a or the O-ring 22b having an overall L-shape is formed to have an overall rectangular shape, O-rings having an overall rectangular shape of various sizes can be formed with this apparatus.

However, as shown in Figure 4, there are unvulcanized parts on each side.
In order to form the O-ring 22 having Ma..., it is formed using an O-ring forming apparatus 52 as shown in FIG. That is, as shown in FIG.
The upper and lower rectangular molds 53, 54 are provided with through holes 55, 56 through which cooling water is inserted, and the fitting grooves 57, 58 of the upper and lower molds 53, 54 are filled with the entire unvulcanized molds. When a rectangular O-ring forming member is fitted and the upper and lower molds 53, 54 are press-heated, each insertion hole 5 is
3, 54... and the insertion holes 53, 54...
The O-ring forming member in the vicinity is held unvulcanized and formed. 59, 59 are grooves for cutting formed in the upper mold 53, 60, 60 are grooves for attaching and removing the mold formed in the upper mold 53, and 61, 61 are grooves for lower mold 54.
This is a mold attachment/detachment groove formed in the mold. In this case, of course, the insertion holes 53, 54 through which the cooling water flows are free, so that only necessary portions can be left unvulcanized. Further, although the number of insertion holes 53 and 54 is of course free, it is necessary to form them so as to correspond to the upper and lower portions, and to flow cooling water into the corresponding upper and lower insertion holes 53 and 54.

According to the overall rectangular O-ring vulcanization jig device constructed as described above, the block body 8a of the lower mold 2
And the block body 8b has guide members 20a,
20b, this device can hold the O-ring whose unvulcanized portion is vulcanized without bending it, and form an O-ring with an accurate overall rectangular shape. In addition, as shown by the imaginary line in FIG.
It is also preferable to attach the O-rings a and 62b to more securely hold the O-ring. That is, the guide members 62a and 62b are connected to the guide members 20a and 20a, respectively.
It is slidable in the longitudinal direction along guide grooves 63a, 63b formed on the upper surfaces 25a, 25b of 20b, and can be fixed at any location.
As shown in the figure, the O-ring 22 is held by coming into contact with a portion of each corner of the O-ring 22.

The present invention is not limited to the illustrated embodiment, and the design may be changed without departing from the gist of the present invention. For example, each rail 34a, 34 of the upper and lower molds 1, 2
Although b, 7a, and 7b are each two or more plural,
Each block body 35a..., corresponds to the number of rails.
You are free to increase 8a.... Therefore, it is also possible to form an O-ring that is entirely rectangular and has two or more joints on each side. Although not shown, the block bodies 35a..., 8 of the upper and lower molds 1, 2
A groove for attaching and removing the mold as shown in FIG. 7 is formed in the upper mold 1 or lower mold 2, and a groove for cutting is formed in the upper mold 1 or the lower mold 2.

[Effect of idea]

According to the overall rectangular O-ring vulcanization jig device of the present invention, the end surfaces of the pair of U-shaped O-rings formed in the unvulcanized portion are brought into contact with each other, so that the entire rectangular shape is formed. Then, the ends of the unvulcanized part are vulcanized, and the abutting end faces are joined to form a rectangular O-ring as a whole. If the four O-rings formed in the L-shape are combined to form a rectangular shape as a whole, the end of the unvulcanized part will be vulcanized and brought into contact as described above. The end faces are joined to form a rectangular O
It is possible to form a ring, and furthermore, the unvulcanized part of the end of an O-ring with a U-shape of various sizes or an O-ring with an overall L-shape,
Since the O-ring can be fitted into the fitting groove of the upper and lower mold blocks while maintaining its overall shape, there is no need for molds of various sizes, and various sizes can be made with this single device. A completely rectangular O-ring can be easily and accurately formed. In other words,
Since it does not require molds of various sizes, it contributes to cost reduction, and there is no need to prepare a large number of molds, so it is not bulky and does not require a storage space. In addition, as shown in the example, after forming a rectangular O-ring with an unvulcanized part on each side using one mold machine, it is cut at the unvulcanized part, and the end part is cut. If the unvulcanized part is formed into a U-shaped or L-shaped O-ring, it can be easily and accurately formed as described above.
Generally rectangular O-rings can be formed in a variety of sizes.

[Brief explanation of the drawing]

Fig. 1 is a plan view of a lower mold according to an embodiment of the present invention, Fig. 2 is a bottom view of an upper mold, Fig. 3 is a front view of the whole, and Fig. 4 is a whole including an unvulcanized part. A plan view of a rectangular O-ring, FIG. 5 is a plan view of an O-ring formed using this apparatus from the O-ring shown in FIG. 4, and FIG. 6 is a plan view of an apparatus for forming the O-ring shown in FIG. 4. FIG. 7 is an enlarged sectional view taken along the line X--X in FIG. 6. 1... Upper mold, 2... Lower mold, 3, 4... Heating plate, 7a, 7b... Rail, 8a, 8b, 8c,
8d...Block, 23a, 23b, 23c,
23d... Fitting groove, 34a, 34b... Rail,
35a, 35b, 35c, 35d...block body, 50a, 50b, 50c, 50d...fitting groove.

Claims (1)

[Claims for Utility Model Registration] Rails disposed perpendicular to each other when viewed from above, and a fitting that slides along the rails and engages the lower half of the unvulcanized part of the O-ring. a lower mold having a block body having a matching groove; a rail disposed perpendicularly to each other in plan view; a block body having a fitting groove into which the upper half is fitted; and an upper mold having a block body having a fitting groove into which the upper half is fitted; and heating the block bodies of the upper and lower molds to vulcanize the unvulcanized portion fitted in the fitting groove. A vulcanizing jig device for an O-ring having an overall rectangular shape, characterized by comprising: a heating plate for curing;