JP6754985B2 - Caterpillar press equipment - Google Patents

Description

The present invention relates to a caterpillar press device that press-molds while transporting a molding material by a caterpillar.

As a device of this type, a double belt press device in which a caterpillar formed by forming a loop of belts in which pieces are connected in a chain shape is arranged vertically is known. In this device, molding materials are put into and conveyed between the side wall portions provided at both ends in the width direction at the upstream portion where the upper and lower caterpillars face each other, and press-molded from above and below. (See, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 63-56416

By the way, the side wall portion of this device constitutes a guide wall that also serves as a regulating side wall for transporting the molding material while preventing it from flowing out to the side. Therefore, the molded body molded by this device had to be cut and discarded at the end in the width direction so as to fit the desired dimensions.

The present invention has been proposed in consideration of such circumstances, and an object of the present invention is to provide a caterpillar press device capable of adjusting the width dimension so as to match the width dimension of a desired molded product.

In order to achieve the above object, in the caterpillar press device of the present invention, the upper caterpillar and the lower caterpillar arranged so as to face each other convey the molding material continuously supplied between them while pressing them from above and below. It is a caterpillar press device that press-molds while maintaining the thickness of the molding material. The upper caterpillar has a plurality of upper dies continuously in a loop shape, while the lower caterpillar has a plurality of lower dies. It is held in a continuous loop shape, and the upper mold and the lower mold are combined up and down to form the molding material, and when they face each other, the side edge positions of the molding material are determined. A side wall portion for this purpose is formed, and the position of the side wall portion in the width direction is variable.

According to the caterpillar press device of the present invention, since the structure is as described above, when the molding material is molded into a molded body, the width dimension can be adjusted so as to match the desired width dimension of the molded body. ..

It is explanatory drawing which shows typically the caterpillar press apparatus which concerns on one Embodiment of this invention. (A) is a plan view of the caterpillar press device, and (b) is a front view of the caterpillar press device. (A) is a partial perspective view schematically showing a die (combination of an upper die and a lower die) of the caterpillar press device, (b) is the same plan view, and (c) the same front surface. It is a figure . It is explanatory drawing of the combination of the upper die and the lower die in a caterpillar press apparatus, and (a) and (b) are schematic vertical sectional views of two examples corresponding to line X1-X1 of FIG. 1 (b). Is. Explanatory drawing of another example of the same combination, (a) is a schematic vertical sectional view corresponding to the X1-X1 line of FIG. 1 (b), and (b) is an enlarged explanatory view when the same combination position is changed. (C) is an enlarged vertical sectional view corresponding to the X2-X2 line of FIG. 4 (a) showing an example of the combined structure of the L-shaped member, and (d) is an enlarged view showing another example of the combined structure.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. First, the basic configuration of the caterpillar press device 1 and the items common to the following plurality of embodiments will be described.

In this caterpillar press device 1, the upper caterpillar 10A and the lower caterpillar 20A arranged so as to face each other convey the molding material 2 continuously supplied between them while pressing them from above and below, and convey the molding material 2. It is a device for press molding while maintaining the thickness. The upper caterpillar 10A has a plurality of upper molds 10 in a continuous loop shape, while the lower caterpillar 20A has a plurality of lower molds 20 in a continuous loop shape.

The upper mold 10 and the lower mold 20 are combined vertically to form the molding material 2, and when they face each other, a side wall portion 5 for determining the side end position of the molding material 2 is formed. It is supposed to be done. The position of the side wall portion 5 in the width direction is variable.

In each of the three types of caterpillar press devices 1 described below, the upper caterpillar 10A and the lower caterpillar 10A are respectively arranged in an endless belt shape as described above. A plurality of upper molds 10 are continuously provided on the belt (not shown) surface (outer peripheral surface) side of the upper caterpillar 10A, and similarly, a plurality of lower molds 10 are provided on the surface of the lower caterpillar 20 belt (not shown). Side molds 20 are continuously provided. As a result, the upper caterpillar 10A has the pieces constituting the upper caterpillar 10A made up of the upper mold 10, and the lower caterpillar 20A has the pieces constituting the upper caterpillar 10A made up of the lower mold 20 corresponding to the upper mold 10.

The bottom surface of each of the upper mold 10 and the lower mold 20 may be fixed to the surface of the belt. In addition, there is no gap between the bottom surface and the adjacent mold. That is, as shown in FIG. 1, in the flat portions 10Aa and 20Aa in which the belt is in a flat state, the adjacent molds are in a closed state, while when the belt is in the curved portions 10Ab and 20Ab, the molds are opened. It becomes a state.

As shown in FIG. 1 (b), when the lower flat surface portion 10Aa of the upper caterpillar 10 and the upper flat surface portion 20Aa of the lower caterpillar 20 face each other, the upper mold 10 is continuous and the lower metal is continuous. The molding material 2 is conveyed while being pressed from above and below by the mold 20. Then, the molding material 2 to be conveyed is press-molded while the thickness is maintained by the upper mold 10 and the lower mold 20.

Each of the upper caterpillar 10 and the lower caterpillar 20 is provided with a pressurizing machine 41 and a heater 42 at positions in the loop facing each other so as to be press-formed between these opposing flat surface portions 10a and 20a.

As the pressurizing machine 41, various types such as a fixed roller method (isocolic method), a circulation roller method, and a sliding shoe method can be used. From a mechanical point of view, it is desirable to adopt a fixed roller method. Further, the pressurizer 41 provided on one caterpillar may be the drive side, and the pressurizer 41 provided on the other caterpillar may be the fixed side. Further, a cooler may be installed instead of the heater 42 on the downstream side.

Further, a material supply machine 43 for supplying the molding material 2 is provided in the upstream portion (left side in FIG. 1B) of the caterpillar press device 1. Urethane foam resin or the like is assumed as the molding material 2, but the molding material 2 is not limited to this.

Next, the details of molding by the molding die 4 formed by combining the upper mold 10 and the lower mold 20 will be described with reference to FIG. As will be described later in FIG. 3, three types of shapes of the molding die 4 are exemplified in the present specification, but here, the shape shown in FIG. 3A will be described.

FIG. 2A is a partial perspective view of a case where the upper mold 10 and the lower mold 20 face each other to form the molding die 4 between the upper and lower flat portions 10Aa and 20Aa. Further, FIG. 3A is a schematic vertical sectional view corresponding to the X1-X1 line of FIG. 1B.

The upper mold 10 and the lower mold 20 have an L-shaped cross section in the width direction, and the internal space 4a is formed when the L-shaped entrance corners 10a and 20a face each other vertically so as to be arranged diagonally. Is formed, and side wall portions 5 and 5 formed by L-shaped vertical pieces 11 and 21 are formed on the left and right sides of the internal space 4a in the width direction.

Thus, both of the side wall portions 5, 5 determine the thickness and the side end position in the molding die 4 when the upper mold 10 and the lower mold 20 are combined as described above. Then, the internal space 4a having a constant shape is formed by the combination of the upper mold 10 and the lower mold 20 as described above.

Further, as shown in FIG. 2A, since a plurality of upper molds 10 and lower molds 20 are continuously formed, the flat portions 10Aa and 20Aa are adjacent to each other. Are connected to form a longitudinal mold 4. As a result, the internal space 4a of the molding die 4 is also continuously connected to form a long internal space 4a. When the molding material 2 flows into the internal space 4a, the side wall portions 5 and 5 prevent the molding material 2 from flowing out to both sides in the width direction and flow downstream.

Since the continuous molding die 4 and the continuous longitudinal internal space 4a formed by the molding die 4 are formed in this way, the molding material 2 is pressed in the internal space 4a to form a long plate-shaped molded body having a predetermined thickness. 3 is formed. At this time, the positions of both side ends of the molded body 3 in the width direction, that is, the width dimension of the molded body 3 is determined by both side wall portions 5, 5.

As described above, such side wall portions 5 and 5 are formed when the upper mold 10 and the lower mold 20 face each other in the flat surface portions 10Aa and 20Aa. Then, by sliding at least one of the upper mold 10 and the lower mold 20 in the width direction, the distance between the side wall portions 5 and 5 can be adjusted. That is, depending on the width dimension of the target molded body 3, one or both of the upper mold 10 and the lower mold 20 are attached to the belt in the width direction (see the arrow in FIG. 2A). You can install it so that it shifts.

It is desirable that the upper mold 10 and the lower mold 20 have a simple structure, such as providing a protrusion on one side and a concave groove on the other side so that they can be fitted to the belt. Further, in the combination of the upper mold 10 and the lower mold 20, since adjacent objects are connected to each other without a gap, the positions (tip, rear end) in the transport direction match as shown in FIG. 2A. It does not have to be, and it may be misaligned.

Further, it is desirable to provide packing 7 for preventing leakage of the molding material 2 at the adjacent portion between the molds in each of the upper mold 10 and the lower mold 20. As shown by the two-dot chain line in FIG. 2A, it is desirable that the packing 7 is provided so that the L-shaped horizontal pieces 12 and 22 are adjacent to each other and the vertical pieces 11 and 21 are adjacent to each other.

When the packing 7 is attached in this way, the space between the adjacent molds is firmly closed in the flat surface portions 10Aa and 20Aa, and leakage of the material can be prevented. When the molding material 2 reaches the curved portions 10Ab and 20Ab on the downstream side, the molds are opened, but at that time, the material is cured to form the molded body 3, so that the molding material 2 does not leak out.

In this way, the flat surface portions 10Aa and 20Aa are press-molded while being conveyed downstream in a state where the shape of the molding material 2 is determined by the pressurizing machine 41, the heater 42 and the molding die 4, and the curved portion 10Ab on the downstream side is formed as the molded body 3. , Taken out between 20 Ab. In the curved portions 10Ab and 20Ab, both the upper mold 10 and the lower mold 20 are smoothly separated from each other so as to be peeled off from the molded body 3.

Next, another example of the combination of the upper mold 10 and the lower mold 20 will be described with reference to FIGS. 3 (b) and 3 (c) and FIG.

In the case of FIG. 3B, similarly to FIG. 3A, the upper mold 10 and the lower mold 20 have a shape in which the internal space 4a (molding mold 4) is formed when they face each other vertically. ing. At least one of the upper mold 10 and the lower mold 20 has movable inner walls 13 and 23 that slide and move in the width direction in the internal space 4a, and the movable inner walls are left and right in the width direction in the internal space 4a. The side wall portions 5 and 5 formed by the 13 and 23 are formed.

In the example shown in FIG. 3B, the upper mold 10 and the lower mold 20 are both L-shaped, and they face each other to form one molding mold as in FIG. 3A. It has become. Movable inner walls 13 and 23 with an operation unit are attached to the vertical pieces 11 and 21 respectively.

Specifically, screw holes are opened in the vertical pieces 11 and 21, shaft portions 14 and 24 made of male screws are inserted into the screw holes, and movable inner walls 13 and 23 are formed on the inner side of the shaft portions 14 and 24. The operating portions 15 and 25 are attached to the outer side of the shaft portions 14 and 24. By operating the operating units 15 and 25, the positions of the movable inner walls 13 and 23 in the width direction can be adjusted.

The movable inner walls 13 and 23 may be attached to only one mold, and in that case, the vertical pieces 11 and 21 of the mold to which the movable inner walls 13 and 23 are not attached may be used as the other side wall portion 5. It works. Further, it is possible that one of the upper mold 10 and the lower mold 20 has two vertical pieces 11 and 21, and the movable inner walls 13 and 23 are attached to at least one of the vertical pieces 11 and 21. Just do it.

According to those having the movable inner walls 13 and 23, the dimensions between the side wall portions 5 and 5 can be easily adjusted according to the dimensions of the target molded body 3, and moreover, depending on the dimensions of the molded body 3. There is no need to replace the mold with the belt, and the efficiency of equipment replacement work can be improved.

Further, in the case of FIG. 4A, the upper mold 10 has a flat plate shape, while the lower mold 20 has two L-shaped members 30 and 30 having an L-shaped cross section in the width direction. The horizontal pieces 32, 32 of the character members 30, 30 are combined so as to overlap each other. When the upper mold 10 and the lower mold 20 face each other vertically, an internal space 4a (molding mold 4) is formed, and vertical pieces 31 of the L-shaped member 30 are formed on the left and right sides of the internal space 4a in the width direction. The side wall portions 5 and 5 formed by 31 are formed. Then, at least one of the L-shaped members 30 and 30 of the lower mold 20 slides in the width direction, and the overlapping margin lengths of the horizontal pieces 32 and 32 of the L-shaped members 30 and 30 fluctuate, so that the side wall portion The interval between 5 and 5 is adjusted.

Specifically, the tip end side of the horizontal piece 32 of one L-shaped member 30 is stepped down to form a step, and the horizontal piece 32 of the other L-shaped member 30 enters the recess 32a due to the step. There is. The dimensions between the vertical pieces 31 and 31 of the L-shaped members 30 and 30 can be adjusted by adjusting the stacking allowance length between the horizontal pieces 32 and 32. The vertical pieces 31, 31 form the side wall portions 5, 5.

As shown in the enlarged view of FIG. 4B, a gap is formed when the stacking allowance length is shortened, so that the spacer 33 may be fitted in the gap. Conversely, spacers 33 having different width dimensions may be prepared according to the width dimension of the target molded product 3.

According to the one shown in FIG. 4, since it is only necessary to adjust the lower mold 20 in order to set the width dimension, the adjustment work can be performed easily and quickly. Further, if various spacers 33 are prepared according to the target molded product 3, the equipment settings can be changed simply by replacing the spacers 33.

Further, since one of the L-shaped members 30 (the one on the right side in FIG. 4A) is not fixed to the belt, the other L is as shown in FIG. 4C or FIG. 4D. The structure may be such that it can be mounted by fitting with the character member 30 (the one on the left side in FIG. 4A).

In the case of FIG. 4C, one is provided with a fitting ridge 34 extending in the width direction, and the other is provided with a fitting groove 35 matching the fitting ridge 34, and both are slidly fitted along the width direction. The structure is such that it can be fixed at an appropriate position. Further, in FIG. 4D, a plurality of fitting ridges 36 extending in the transport direction at equal intervals along the width direction are provided on one side, and a plurality of fittings matching the shape of the fitting ridges 36 are provided on the other side. The structure is such that the joint groove 37 is provided and the width dimension can be changed by gradually shifting and fitting in the width direction.

1 Caterpillar press device 2 Molding material 3 Molding body 4 Molding die 4a Internal space 5 Side wall part 7 Packing 10A Upper caterpillar 20A Lower caterpillar 10 Upper mold 10a Inner corner 11 Vertical piece 12 Horizontal piece 13 Movable inner wall 20 Lower mold 20a Inside corner 21 Vertical piece 22 Horizontal piece 23 Movable inner wall 30 L-shaped member 31 Vertical piece 32 Horizontal piece

Claims (4)

A caterpillar press device in which upper and lower caterpillars arranged so as to face each other convey a molding material continuously supplied between them while pressing them from above and below, and press-mold while maintaining the thickness of the molding material. And
The upper caterpillar has a plurality of upper molds in a continuous loop shape, while the lower caterpillar has a plurality of lower molds in a continuous loop shape.
The upper mold and the lower mold are combined vertically to form the molding material, and when they face each other, a side wall portion for determining a side end position of the molding material is formed. It has become
A caterpillar press device characterized in that the position of the side wall portion in the width direction is variable. In claim 1,
The upper mold and the lower mold have an L-shaped cross section in the width direction, and an internal space is formed when they face each other vertically so that the L-shaped inside corners are arranged diagonally. The side wall portions formed by L-shaped vertical pieces are formed on the left and right sides of the internal space in the width direction.
A caterpillar press device, characterized in that the distance between the side wall portions is adjusted by sliding and moving at least one of the upper die and the lower die in the width direction. In claim 1,
The upper mold and the lower mold have a shape in which an internal space is formed when they face each other vertically, and at least one of the upper mold and the lower mold is in the width direction in the internal space. A caterpillar press device having a movable inner wall that slides to and from the inside space, and the side wall portion formed by the movable inner wall is formed in the width direction in the internal space. In claim 1,
The upper mold has a flat plate shape, while the lower mold combines two L-shaped members having an L-shaped cross section in the width direction so that the horizontal pieces of the L-shaped members overlap each other. Become
An internal space is formed when the upper mold and the lower mold face each other in the vertical direction, and the side wall portion formed by the vertical piece of the L-shaped member is formed on the left and right sides in the width direction of the internal space. It has become like
At least one of the L-shaped members of the lower mold slides in the width direction, and the overlap margin length of the horizontal pieces of the L-shaped members fluctuates so that the distance between the side wall portions is adjusted. A caterpillar press device characterized by being.

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