JPH0832412B2 - Instant demolding concrete product molding machine - Google Patents

Description

TECHNICAL FIELD The present invention relates to an instant demolding concrete product molding machine.

<Conventional technology> Products molded by an instant demolding concrete product molding machine,
For example, paving stone blocks for pavements include standard products of various shapes and various types of variant products that are used in combination with each standard product in the corners, etc. However, the coloring of the surface layer is different, and it is very diverse.

For this reason, the applicant of the present invention equips the molding machine with a guide device or separates a part of the molding machine such as a press machine from the main body of the molding machine and uses it as a guide device. From the molding area inside the molding machine to the outside of the machine,
Next, introducing a mold and press mold for molding into the molding area from outside the machine, labor saving the exchange of the old and new press molds and the completion of the work in a short time is disclosed in JP-A-61-66608. 61-13000
Proposed in No. 8 publication and put to practical use.

<Problems to be solved by the invention> However, when molding products having extremely different volumes or weights such as thickness and outer size, for example, molding a light product until then, exchanging the press mold and the formwork. Then, when molding a heavy product using the same press and vibration equipment that was used to mold a light product, the filling rate of the material in the mold is insufficient and the reverse is also true. In the case of, the filling rate of the material in the mold becomes excessive, resulting in products with different material densities and water permeabilities.Products with insufficient filling rate have high water permeability but are prone to chipping and excessive filling rate. Products have strength, but have problems such as insufficient water permeability.

<Means for Solving Problems> Therefore, the instant demolding concrete product molding machine of the present invention is capable of exchanging both or one of the press device and the vibrating device from the molding machine, and exchanging them. The apparatus is characterized in that it is used as a means for loading and unloading a mold and a press die.

<Operation> When molding a heavy product, a press device with a small pressing force, a vibration device with a small vibration force, a press device with a large pressing force, and a vibration device with a large vibration force, which were used to mold a light product up to then, are used. The material density and the water permeability of the heavy product can be made equal to those of the light product. Further, the quality of the product is considerably improved by not replacing both the press device and the vibrating device but replacing only one of them. This is the same even if either one of the press device that used to mold a heavy product and the vibrating device is replaced with a press device with a small pressing force or a vibrating device with a small vibration force.

Then, using the press device or the vibrating device that has been used to replace it, the press mold that was also used until then, and one or both of the molds are carried out of the molding area, By using a newly used press device or a vibration device, one or both of another press mold and a mold are carried into the molding region.

<Examples> In each of the illustrated examples, 1 is a molding machine main body, 2 is a mold, 3 is a press die, 4 is a molding region or a feeding region, 5 is a press device above the molding region, and 6 is A vibrating device below the forming area, 7 is a material hopper, and 7'is moved from below the material hopper to the forming area in order to feed the material in the material hopper to the mold cavity of the mold 2, and after the material is supplied, the material hopper is again provided. Shown below are the supply boxes, which are well known in instant demold concrete product forming machines.

The pressing device 5 has a mounting plate 5'on its lower surface, and the press die 3 has a substrate 3'overlapping the lower surface of the mounting plate 5 ', and the mounting plate and the substrate are provided with a detaching device. Since this attachment / detachment device has the same configuration as described in the above-mentioned conventional example, its outline will be described later.

Further, when both the mold 2 and the press die 3 are carried into the molding region 4 or conversely, when being carried out from the molding region, the press mold 3 is used.
Is projected into the mold cavity of the mold 2 and overlapped on the mold to be positioned.

1 to 4 show an embodiment in which the press device 5 is detachable from the molding machine main body so that it can be replaced. The pressing device 5 is mounted on the left and right columns 8, 8 of the molding machine main body which are erected on the left and right of the molding region 4. A gate-shaped frame 9 is placed separately, a self-propelled carriage 11 having wheels 10 on the left and right is fixed to the frame 9, and the wheels 10 are guided above the molding machine to form a press machine 5 in a molding area 4 A rail 12 for laying the rail 12 to be moved from directly above to the front of the molding machine is installed. The rail 12 may be supported by a plurality of columns in the front-rear direction standing from the floor, or may be supported by a plurality of columns in the front-rear direction descending from the ceiling of the factory or the like.

Further, on the press die substrate 3 ', when the press die is placed on the form frame, downward connecting pins 13 which protrude into the holes opened in the upper surface of the form frame are provided on the left and right sides. Coupling pin
Insert the retaining pin 14 that skewers 13 so that the frame 2 can be joined under the press die.

Therefore, in order to replace the press device with another press device having different pressing force and vibration force, and at the same time to replace the mold and the press mold, the press mold is placed on the old mold to be replaced in the molding area 4. After descending by the ascending / descending pressure cylinder 15 of 5, the above-mentioned connecting pin 13 is inserted into the hole of the mold 2 and the retaining pin 14 is then inserted (right side in FIG. 1), the cylinder is used to press the die. Pull up the old formwork connected below it (left side in Fig. 1), move the press device 5 along the rail 12 with the self-propelled carriage 11 to the front of the molding machine (arrow A in Fig. 2), and from there use an overhead crane or the like. Hang it, remove it from the front end of rail 12, and drop it on a suitable platform. Then, a similar press device with a similar polymer of the press mold and the formwork for forming another product with different weight is carried by the overhead crane and the wheels of the truck are railed.
Then, the self-propelled trolley moves it directly above the forming area (arrow B in FIG. 2), and the pressurizing cylinder lowers the mold and press die into the forming area.

Left and right side plates 1 of the molding machine inside the columns 8 and 8 described above
A lower bracket 17 for projecting into the molding area 4 and for receiving the left and right overhanging portions 2 ', 2'of the formwork 2 from below via a vibration-proof rubber is provided on the front and rear of the molding area 6 and is lowered in the molding area. The formed frame is placed horizontally on the lower bracket 17 (right side in Fig. 1).

Therefore, after that, the retaining pin 14 is pulled out from the frame and only the press die 3 is pulled up by the pressure cylinder (left side in FIG. 3).

Upper and lower brackets 18 are provided on the left and right side plates 16 above the lower brackets 17, and stoppers 19 that can come into contact with the upper and lower brackets from above from the left and right overhanging portions of the form via vibration damping rubber. Is provided downwards. When the mold frame together with the press mold is pulled up and replaced by the press machine, the upper bracket 18 together with the stopper 19 is retracted out of the molding area as shown in FIG. Fix it to the side plate 16 and place it.

To mold a product with this molding machine, place a flat plate (a plain pallet) 20 that closes the lower surface of the entire mold cavity of the vibrating device on the vibrating table 6 ', and fit the right and left columns 8 and 8 to vibrate. The raising and lowering bracket 21 for raising and lowering the device 6 is pulled up by the raising and lowering cylinder 22 to lift the vibrating device, the formwork 2 is pressed against the stopper 19 from below through the vibrating device 6, and the upper face of the formwork is slid with the lower face of the supply box 7 '. Make it a level to contact. Next, the material is supplied to the mold cavity by reciprocating the material supply box 7'on the mold while vibrating the mold with the vibrator V of the vibration device 6. Although there is only one supply box in this embodiment, it is equipped with a base material that occupies most of the thickness of the product and two material hoppers containing the surface material that forms the surface of the product. The material supply box attached to the hopper may be reciprocated once to supply each material to the mold cavity.

After the material is filled in the die cavity in this way, the press die 3 is lowered by the pressurizing cylinder 15 of the press machine so that the material in the die cavity is vibrated by the vibrator V of the press machine and the vibrator V of the vibrating machine 6. Press down, then stop the vibration and lower the pressure cylinder 15 and the lifting cylinder 22 in synchronism. As a result, the mold 2 is received by the left and right lower brackets 17 and stops descending, and the descending press die 3 continues to descend thereafter.
On the top (Fig. 4).

When the thickness of the product is thin, the vibration when feeding the material to the die cavity and the vibration when pressing the material in the die cavity may not be performed.

Then, when the elevating cylinder 22 extends and the vibrating device 2 descends to the lowest position, the press die is pulled up to its original highest position by the pressure cylinder. Since the press die and the press machine do not have the left and right overhanging parts like the formwork, the left and right lower brackets 17,17
Alternatively, the interval between the stoppers 19, 19 of the upper bracket can be raised and lowered without any trouble.

When the vibrating device is lowered to the lowest level in this way, a new flat plate 20 is supplied to the upper surface of the vibrating table by a known pallet feeder, and the old flat plate on which the demolded product is placed is vibrated as is well known by the newly supplied flat plate. Push out from the top of the table.

To replace the mold and the press mold at the same time when exchanging the press device, rotate the upper bracket 18 to retract it from the molding area as described above, and then lower the press device to move the mold below the press mold. The old mold and press mold are carried out together with the press machine, and the new press machine, mold and press mold are carried in.

Also, when using the same mold, when manufacturing products with the same outer shape but different thicknesses, leave the mold in the molding area when exchanging the press machine, and let only the press mold accompany the press machine,
A press die having a different downward length is attached to a mounting plate of another press device having a different pressing force, and the press die is carried into the forming region.

All the press devices to be replaced differ only in the pressurizing force of the pressurizing cylinder 15 and the vibration force of the vibrator V in some cases, but the left and right struts of the molding machine main body and the same gate-shaped frame 9 mounted on 8, 8 are self-supporting. It has a carriage 11.

In the embodiment shown in FIGS. 1 to 4, the vibrating machine V for forming a frame is provided on the vibrating table 6 ', but it is not limited to this and may be directly provided on the forming frame. At the time of replacement, the vibrator on the formwork side can also be replaced with one having a different exciting force.

The embodiment shown in FIGS. 5 and 6 uses the replacement of the vibrating device 6 to replace the mold 2 and, in some cases, the press mold 3, and the same components as those in the previous embodiment are designated by the same reference numerals. There is.
In this embodiment, the frame 9 of the press device includes the left and right columns 8,
The vibration device 6 is mounted on the molding area 4 and on an automatic carriage 24 which is movable along rails 23 laid on the floor in front of the molding machine, while being fixed irreplaceably on the molding machine 4. The vibrating device 6 has downward guide pins 25 on the left and right and front and back, and the guide pins 25 are positioned by projecting from above into corresponding holes of the carriage 24.

In this embodiment, the mold 2 can be placed on the vibration table of the vibration device at the lowest position.
The lower bracket 17 that receives the left and right overhanging portions of the form from below and horizontally supports the lower bracket 17 is rotatable about the vertical axis so that it can be retracted out of the molding area through the window holes 16 'in the left and right side plates 16 (see (Fig. 6), the upper bracket 18 provided with a stopper 19 that abuts against the upper surface of the left and right overhanging portions of the mold is extended in the forming area when the press die and the press device can move up and down without any trouble.ゝ, that is, the left and right side plates 16 and 16 may be fixedly placed.

In order to replace the mold and the press mold, the lifting cylinder 22 raises the mold 2 above the lower bracket 17 through the vibrating device 6, and then all the lower brackets 17 are retracted to the outside of the molding area, and the pressing device is used. The press die 3 attached to the press die 3 is lowered by the pressurizing cylinder 15 and fitted in the die hole of the die frame so as to be superposed on the die frame, and then the press die substrate 3'and the mounting plate 5'of the press device are disconnected. , The press die and mold, the vibration device is lowered to the lowest position by the lifting cylinder 22 and the vibration device is placed on the self-propelled carriage 24 (left side in FIG. 5), and the carriage is moved along the rail to press the mold and formwork. Then, the vibrating device is brought out to the space in front of the molding machine (arrow C in FIG. 6), where it is hoisted by an overhead crane, carried to a predetermined storage place, and lowered.

Then, another vibrating device equipped with a vibrating machine with different vibrating force, another formwork superimposed on it, and a press die are placed on a trolley, and these are carried together with the vibrating device under the self-propelled trolley just below the molding area. (Arrow D in FIG. 6), the raising and lowering cylinder 22 raises the mold and the press die above the lower bracket 17 through the vibrating device to make the lower bracket 17 project into the molding area, and then descend the vibrating device. Then, the left and right overhanging portions of the mold are received by the lower bracket 17, the press device is lowered by the pressure cylinder, the press mold is coupled thereunder (right side in FIG. 5), and the press mold is pulled up.

The molding of the product in this example is the same as in the previous example.

There are several molds that have the same planar shape and the same arrangement, and are provided with mold holes that differ only in depth, in order to manufacture products that differ only in thickness. It is possible to use two identical press dies. In this case, in order to save the waste of preparing the same press mold for each mold having a different thickness, when exchanging the vibration device, it is sufficient to leave the press mold in the press device and place only the mold on the vibration device for replacement. .

Attaching / detaching device between the press die 3 and the mounting plate 5'of the press device
The various structures described in the above-mentioned conventional example can be adopted for 26, but in the illustrated embodiment, the moving wedge among them is used.

That is, as shown in FIGS. 7 and 8, the press type substrate 3'has protruding pieces 27 having upwardly opened openings of the inverted T shape on the left and right sides of the upper surface, and the mounting plate 5'of the press device is In the left and right holes that project the protruding piece above the upper surface, the turnbuckle 28 that is rotatably supported by the bearing across the series of directly above the left and right holes, and the right screw part and the left screw part of the turnbuckle. Each wedge has two wedges 29, 29 that can move in the longitudinal direction of the turnbuckle on the mounting plate, and the hydraulic motor 30 equipped in the press machine rotates the turnbuckle 28 forward and backward by chain conduction etc. To drive.

When the mounting device 5'is brought into contact with the upper surface of the press-type substrate 3'by lowering the pressing device, each wedge 29 is placed so as to be deflected from above the hole.

As a result, when the press device descends, the projecting piece 27 enters into the hole of the mounting plate from below and projects upward, and the left and right screw parts of the turnbuckle enter the inside of the upwardly opening opening 27 'of the projecting piece 27 to mount it. The lower surface of the plate 5'abuts on the upper surface of the substrate 3 '. Therefore, the turnbuckle 28 is rotated in one direction by the hydraulic motor 30, the wedges 29 are moved toward each other on the mounting plate, and the wedges 29 are respectively inserted into the openings of the left and right projecting pieces 27 to mount the mounting plate. The upper surface of the and the upper surface of the opening of the projecting piece are wedge-bonded to each other to join them. The upper surface of the opening of the projecting piece 27 is set to be an inclined surface that matches the inclination of the upper surface of each wedge 29.

Therefore, in order to release the connection, the turnbuckle 28 is rotated in the opposite direction by the hydraulic motor 30, each wedge 29 is moved on the mounting plate 5'in a direction away from each other, and the wedge 29 can be pulled out from the opening of each projecting piece 27. .

In the embodiment shown in FIGS. 1 to 4, only the press device is replaceable, and in the embodiment shown in FIGS. 5 and 6, only the vibration device is replaceable. However, as shown in FIG. 9, both the press device and the vibration device are replaced. May be replaceable. Then, in this case, the press device is replaced with another press device having a different pressing force, the vibrating device is replaced with another vibrating device having a different vibrating force, and when the mold and the press mold are both replaced, The press die is placed on top of the above, and it is replaced by either the press device or the vibration device while being positioned by the pin 13.

When the press device 5 is replaceable, a bolt and a nut 31 are provided between the upper end of each column 8 and the lower end of the press frame to prevent the press device from moving toward the rail 12 during molding. In the case where the vibrating device 6 is fixed in place and the vibrating device 6 is replaceable, the vibrating device 6 is similarly lifted to prevent it from moving toward the rail 23.
Fasten with bolt 32 against 21.

Further, in order to position the vibrating table 6'and the form 2, it is preferable to place a pin 33 which projects into the other hole on either one of them.

<Effects of the Invention> According to the present invention, the press device or the vibration device, which is conventionally incorporated as an integral unit in the instant demolding concrete product molding machine, is replaceable by cutting it from the molding machine body, and the mold is utilized. By exchanging the old and new frames and press molds, the mold holes of the mold can be opened up and down, and the pavement or paving stone blocks of various shapes and sizes that are laid on the pavement in the mold holes can be changed. The molding can be performed by a press device having an optimum pressing force or a vibration device having an optimum vibration force according to the weight.

[Brief description of drawings]

FIG. 1 is a front view of an embodiment of a molding machine according to the present invention. The left side shows a state in which the press device pulls up the formwork when the press device is replaced, and the right side shows the press device puts the press die on the formwork. 2 is a side view of the molding machine of FIG. 1, showing the state of exchanging the press device together with the mold and the press die.
FIG. 4 is a front view of the molding machine of FIG. 1, and the left side of FIG. 3 is a state in which the press device pulls the press die upward from the mold,
The right side of the figure shows a state in which the vibrating device lifts the mold to the molding position for molding the product, and FIG. 4 shows a state in which the molded product is demolded. FIG. 5 is a front view of a second embodiment of the molding machine of the present invention. The left side shows a state in which a mold and a press die are placed on the vibrating device when the vibrating device is replaced, and the right side shows the pressing device. FIG. 6 is a side view of the molding machine shown in FIG. 5, showing a state in which the press die is overlaid, and FIG. FIG. 8 is a plan view of a mounting plate of a press device and a device for attaching and detaching a press type substrate adopted in the molding machine of FIG. 8, FIG. 8 is a front view of FIG. 7, and FIG. 9 is another embodiment of the molding machine of the present invention. It is a front view of an example. In the figure, 1 is a molding machine main body, 2 is a mold, 3 is a press die, 5 is a press device, 6 is a vibration device, 11 is a self-propelled carriage of the vibration device,
Reference numeral 24 denotes a self-propelled carriage of the vibration device.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP 61-130008 (JP, A) JP 61-66608 (JP, A) JP 61-89008 (JP, A) JP 61- 50408 (JP, A)

Claims (1)

[Claims] 1. A concrete material in a material hopper is fed to a mold equipped with a vibration device, and the material supplied into the mold is compression molded by a press mold provided in a press device, and then compression molded. In an instant demolding concrete product molding machine for demolding a product from a mold; the pressing device and / or the vibrating device are detached from the molding machine so that they can be replaced. An instant demolding concrete product molding machine characterized by being used as a means for loading and unloading dies.