JPH08159117A - Method and device for manufacturing thermoplastic synthetic resin-made layered material layered by holding space - Google Patents

Abstract

PURPOSE: To efficiently manufacture a layered material by pressing a first supplied single plate under a condition supported from upward from under a newly supplied single plate by a fusing means. CONSTITUTION: A first single plate 1A is supplied, in a standby condition upward by a lower stile 5, to carry in a machine a single plate 1B by a conveyer 4, and to stop the conveyer 4 after positioning. Thereafter, the conveyer 4 is lifted to an inserting position of an upper stile 6, to insert it to an upper position of the single plate 1A. Successively, the lower stile 5 is extracted to lift the conveyer 4 to a fusing level. The fusing level is a position where a protruding part of the single plate 1B on the conveyer is brought into contact with a plane part of the single plate 1A to support it by the upper stile 6 stabilized. In this condition, a fusing pin 10 is lifted and lowered down, to penetrate a contact part of the single plates 1A, 1B fused. Consequently, a layered material of a thermoplastic synthetic resin soft and easy to flex can be manufactured without distortion.

Description

Detailed Description of the Invention

[0001]

[Industrial application] For cooling towers, waste treatment equipment, etc.
As the filling material, a material is used which is laminated at a constant interval so that a fluid can pass through the space. This filling material is manufactured by laminating thin plate-like single plates on the surface of which projections for maintaining a gap are formed at a constant pitch, and joining the projections and the flat surface portion of the next single plate with which the projections abut. It The present invention relates to a method and an apparatus for manufacturing a thermoplastic synthetic resin laminated material that is laminated in such a state that a certain distance is maintained.

[0002]

2. Description of the Related Art Conventionally, in order to manufacture a laminated material of this type, an abutting portion between a protruding portion and a flat portion of a laminated single plate has been bonded with an adhesive. Further, in Japanese Patent Laid-Open No. 50-143139, the abutting portions of the veneers in a stacked state are pressed by a heating rod from above to melt the contact portion with the heating rod to form a through hole and melt the periphery thereof. A method of joining veneers by welding parts is disclosed.

[0003]

The conventional joining method using an adhesive has the drawbacks that it takes time and labor to apply and dry the adhesive, and that the adhesive itself must be handled with care. Further, in the conventional method of pressing with a heating rod and welding, when pressed from above, the laminated material joined only by the protrusions for maintaining the interval acts as a cushion material as a whole, and is deformed by deformation. The heating rod (welding pin) does not allow sufficient welding. Also, if the heating rod (welding pin) is intentionally pressed to weld it, it will be welded in a deformed state as a whole. Therefore, it has never been put to practical use until now.

In view of the above-mentioned drawbacks of the prior art, the present invention has developed a method of welding with a heating rod proposed in Japanese Patent Application Laid-Open No. 50-143139, so that the laminated material produced does not deform and the heating rod does not deform. It is an object of the present invention to provide a method and an apparatus capable of efficiently producing a laminated material by utilizing a welding pin corresponding to the above (3) or other welding means for pressing.

[0005]

[Means for Solving the Problems] In order to press and weld with a welding means such as a welding pin or an ultrasonic oscillator without causing distortion in the laminated veneers, the veneer to be newly laminated is first To the bottom of the laminated single plate, and the welding means such as the welding pin is pressed from below. That is, the veneer supplied immediately before is raised and a new veneer is supplied below the veneer, and the projection or flat surface of the newly supplied veneer and the flat surface or projection of the veneer supplied immediately before. The supporting plate to prevent the veneer supplied immediately before from rising, and push up the welding means such as the welding pin from the bottom to the top to weld the contact portion between the protrusion and the flat surface. Let

A manufacturing apparatus embodying the above-mentioned method comprises a supply means for supplying the projections formed on the thin plate by alternately changing the positions thereof, and a single plate which has been supplied is lifted upward and a new single plate is placed below the supply means. Lifting means that makes it possible to supply a plate, support means that supports the veneer that was supplied immediately before from above and prevents it from rising, and contact between the veneer that was supplied immediately before and the veneer that was newly supplied It is composed of welding means for pressing a portion from the bottom to the top and welding the corresponding contact portion.

[0007]

In the method according to the present invention, when a new veneer is supplied for laminating the veneers and the veneer is pressed by the welding means such as a welding pin, the new veneers are first fed and laminated. The welding means such as a welding pin is pressed from below the newly-supplied veneer with the veneer supplied immediately underneath and supporting the veneer just supplied. Therefore, the pressing force of the welding means acts only between the newly supplied veneer and the veneer supplied immediately before, so that both are reliably welded. During welding, since the single plate supplied immediately before is supported from above, the pressing force does not reach the previously laminated portion. Therefore, there is no possibility that the already laminated portion is welded in a deformed state or the portion to be welded is bent to cause defective adhesion.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a method and an apparatus for manufacturing a thermoplastic synthetic resin laminated material for laminating with a gap according to the present invention will be described below with reference to the accompanying drawings. 1 is a plan view schematically showing a manufacturing apparatus according to the present invention, FIG. 2 is a central longitudinal sectional view of FIG. 1, FIG. 3 is a plan view of laminated single plates, and FIG. 4 is a product in a laminated state. It is sectional drawing which shows some.

As shown in FIG. 3, the single plate 1 is a thin thermoplastic synthetic resin plate (sheet) having a constant thickness, which is heat-molded to form a protrusion 2 having a constant height at a constant pitch P. , 2 are arranged in a zigzag pattern, and the veneers and veneers formed by shifting the positions of the protrusions 2 by a half pitch are alternately laminated and welded to produce the laminated material shown in FIG. In order to alternately supply the protrusions of the veneer 1 by shifting them by a half pitch, the widthwise protrusion placement region formed on the veneer 1 is set to an integer pitch dimension, and the lengthwise protrusion placement region is set to an integer multiple. Also, it is assumed that one half pitch is longer and the same thing is supplied in one direction (hereinafter referred to as veneer 1A when directionality is a problem) and veneer fed 180 degrees inverted (hereinafter referred to as direction). It can be realized by alternately supplying the single plate 1B when the problem is the sex.

In the illustrated embodiment, the flat portion 1a of the single plate 1
A seat 1b into which the protrusion of another veneer is fitted is formed on the. That is, as shown in FIG. 4, with the seat 1b of the veneer 1B and the tip of the protrusion 2 of the veneer 1A fitted together, for example, a welding pin is penetrated to weld the periphery thereof, and the positional deviation is caused. I try to lose it.

Next, a manufacturing apparatus according to the present invention will be described with reference to FIGS. In the veneer carry-in section 3 at the right end of FIG.
From a stockyard (not shown), veneer 1A and veneer 1B with protrusions 2 projecting upward are alternately supplied, and a plurality of narrow widths are provided to avoid the position of protrusions 2 of the veneer. It is introduced into the working position by means of strip conveyors 4, 4. A lower rail 5 for lifting the end plate 1 and an upper rail 6 for pressing the end plate supplied immediately before from above are arranged on both left and right sides of the working position (a part of which is omitted in FIG. 1). are doing. The lower rail 5 and the upper rail 6 can be moved forward and backward from the side by cylinders 7 and 8, respectively, and the lower rail 5 can be raised and lowered by a cylinder 9.

Below the conveyor 4, a large number of welding pins 10, 10 which can be raised and lowered above the surface of the conveyor are arranged at a constant pitch P. In FIG. 1, reference numerals 11 and 12 which are arranged at the terminal end portion and the side surface portion of the working position and which are indicated by a chain double-dashed line are end plate positioning members. That is, the positioning member 11 at the terminal end of the working position supports the protruding portion of the sent end plate to regulate the position in the length direction, and the positioning member 12 arranged on the side surface part moves forward and backward to end. The position in the width direction is accurately regulated by pushing the protrusion of the plate. An exit gate 14 that can be opened and closed is provided between the product unloading section 12 and the end of the work position.

It is necessary to insert the lower rail 5 under the single plate supported on the conveyor 4 and lift it. Therefore, the conveyors 4 are intermittently arranged in the conveying direction so that the lower crosspiece 5 can move forward and backward at the interrupted position. Further, in the embodiment shown in FIG. 2, the entire rack frame 15 on which the conveyors 4 and 4 are mounted can be lifted and lowered by the rack and pinion mechanism 17. Reference numeral 16 is a drive device of the rack and pinion mechanism 17.

The welding pins 10 and 10 are narrow conveyors 4 and 4, respectively.
It goes up and down through the space and welds the veneer on it. In order to allow the welding pins 10, 10 to move up and down between the narrow conveyors 4, 4, in the exemplary embodiment shown, the conveyors 4, 4
Welding pins 10, 10 placed between the
And is moved up and down by a cylinder 18 with respect to the conveyor frame 15. More specifically, a heater block 20 containing a heater 19 is mounted on a mounting base 21, and the mounting base 21 is moved up and down by a cylinder 18. Therefore, when the conveyors 4 and 4 are moved up and down, the rack and pinion mechanism 17 moves up and down the entire conveyor frame. In the drawing of FIG. 2, reference numeral 22 is an upward guide rod for holding the laminated single plates so as not to shake laterally.

In order to stack the single plates 1 in sequence, the protrusions 2 for holding the gaps are arranged alternately by a distance of ½ pitch. Therefore, the position to be welded by the welding pin 10 is shifted by a half pitch every time. In order to adjust the welding position, the positioning members 11 and 12 are for position-regulating the newly supplied single plate at the same position, and the entire conveyor frame or the welding pin mounting base 20 is set in the longitudinal direction (flow direction). ) To be able to move back and forth. On the contrary, the newly supplied single plate and the previously supplied single plate may be reciprocated. The welding means for the veneer supplied immediately before and the veneer to be newly supplied are, in addition to the welding pin having the pointed tip as in the illustrated embodiment, a welding plate provided with a heating flat surface that does not allow penetration through, It can be replaced with a welding means such as an ultrasonic oscillator (horn) for performing sonic welding, welding by spark discharge, and welding by high frequency heating.

An embodiment of a method for manufacturing a laminated material made of a thermoplastic synthetic resin according to the present invention will be described as a manufacturing process using the above apparatus. An overall schematic flow is shown in FIG. 5, and details of the laminating process are shown in FIG. First, a schematic flow will be described with reference to FIG. The first veneer 1 carries in the veneer 1A or the veneer 1B from the veneer carry-in section by the conveyor 4 and positions it. When the positioning is done, stop the conveyor 4,
The conveyor 4 is raised to the insertion position of the lower bar 5 so that the lower bar 5 is inserted under the supplied veneer, and the lower bar 5 is laterally inserted below the veneer 1. Then, the lower rail 5 is lifted and made to stand by upward, and the layers are sequentially welded and laminated. After the processing is completed through the lamination welding process, the lower rail 5 is extracted, the exit gate is opened, and the product is carried out as a product.

Next, the lamination welding process will be described with reference to FIGS. 6 and 7 to 15. With the first veneer 1A or 1B supplied, lifted by the lower crosspiece and waiting upward, the veneer 1B or 1A is carried into the machine by the conveyor 4 (Fig. 7), and its positioning is performed. The conveyor 4 is stopped. Thereafter, the conveyor 4 is raised to the insertion position of the upper crosspiece 6 (FIG. 8), and the upper crosspiece 6 is inserted above the veneer 1A supplied immediately before (FIG. 9). The ascending distance of the conveyor 4 is a range in which the upper rail 6 which is inserted from the side can be inserted above the veneer supplied immediately before and below the veneer supplied before that. .

Then, the lower rail 5 is removed and the conveyor 4 is raised to the welding level (FIG. 11). The welding level is such that the protrusion 2 of the newly-supplied veneer 1B on the conveyor abuts on the flat surface 1a of the veneer 1A supplied immediately before, specifically, the seat 1b, and is supplied immediately before. The single plate 1A is supported by the upper crosspiece 6 and is stable, so that it does not escape upward. In this state, if the welding pin 10 is moved up and down, the welding pin will move to the single plate 1A.
And the single plate 1B through the abutting portion, and both are welded (Fig. 1
2). When the welding is completed, the conveyor 4 is lowered to the insertion position of the lower rail 5, and the lower rail 5 is lowered (FIG. 13).
The lower rail 5 is inserted under the welded veneer 1B, and the upper rail 6 is pulled out to the side (FIG. 14).

When the lower bar 5 inserted under the veneer 1B is raised (FIG. 15), the welded veneer 1A and veneer 1B are supported by the lower bar 5 and are lifted upward. stand by. In the meantime, by lowering the conveyor 4 to the initial reference position, a new veneer 1A to be stacked next can be fed below the waiting veneer 1B. By repeating this operation a required number of times, the lamination welding step of welding the laminated material having a desired size (thickness), in other words, a predetermined number of single plates, is completed.

When the welding pins 10, 10 in a heated state are used as the welding means for the veneers 1 and 1, the operation is simple, and the through holes are formed in the veneers by melting.
The pressing force is less likely to reach other parts, and there is less possibility of distortion and deformation of the product. Further, high-frequency welding or spot welding by discharge does not cause loss of heat radiation and does not heat the working environment.

In the method of the present invention, the veneers are sequentially supplied, the previously laminated veneers are lifted up by the lower bar 5, and new veneers are fed under the veneers to be welded. On the contrary, it is possible to stack new veneers on top and support the veneer supplied immediately before from below to weld, but in this case, the influence of the pressing force on other parts is greatly changed. Is likely to occur. If the whole is supported in a suspended state, the weight of the previously welded portion will distort the overall shape.

[0022]

According to the first and second aspects of the present invention, the method for producing a laminated material made of a thermoplastic synthetic resin for laminating while maintaining a gap between the veneers to be welded has a pressing force for welding. It does not distort the shape of the entire laminated body or the welded part escapes due to bending. Therefore, flexible and flexible thermoplastic synthetic resin veneers are laminated at regular intervals to produce a laminated material used as a filling material for a cooling tower efficiently and without causing distortion. be able to.

According to the third and fourth aspects of the apparatus for producing a laminated material made of thermoplastic synthetic resin for laminating with a gap,
The method can be carried out reasonably.

[Brief description of drawings]

FIG. 1 is a plan view schematically showing an embodiment of a manufacturing apparatus according to the present invention with a part omitted.

2 is an elevational view of the embodiment of FIG. 1 viewed from the flow direction,

FIG. 3 is a plan view showing an example of a single plate constituting a laminated material,

FIG. 4 is a cross-sectional view showing an example of a thermoplastic synthetic resin laminated material, which is an enlarged view of a part thereof;

FIG. 5 is a flow chart showing an outline of a manufacturing process of a laminated material by the method and apparatus of the present invention,

FIG. 6 is a flow chart showing details of the lamination welding process in the flow chart of FIG. 5;

FIG. 7 is a schematic partial front view showing the new veneer supply process of FIG. 6;

FIG. 8 is a schematic partial front view showing the process of raising the conveyor to the upper rail insertion position in FIG. 6;

FIG. 9 is a schematic partial front view showing an upper crosspiece insertion step of FIG. 6;

FIG. 10 is a schematic partial front view showing the lower bar removing process of FIG. 6;

FIG. 11 is a schematic partial front view showing the step of raising the conveyor to the welding level in FIG. 6;

FIG. 12 is a schematic partial front view showing the step of raising and lowering the welding pin in FIG. 6;

13 is a schematic partial front view showing the steps of lowering the conveyor and lowering the lower rail to the lower rail inserting position in FIG. 6;

FIG. 14 is a schematic partial front view showing the step of inserting the lowered lower rail of FIG. 6;

FIG. 15 is a schematic partial front view showing the lower rail rising step of FIG. 6;

[Explanation of Codes] 1, 1A, 1B ... Single plate, 1a ... Flat part, 1b ... Seat, 2 ... Projection part, 3 ... Single plate carry-in part, 4 ... Conveyor, 5 ... Lower bar,
6 ... Upper rail, 7, 8, 9, 18 ... Cylinder, 10 ... Welding pin, 11, 12 ... Positioning member, 13 ... Product unloading section, 14
… Exit gate, 15… Conveyor frame, 16… Drive, 17… Rack and pinion mechanism, 19… Heater, 20…
Heater block, 21 ... Mounting base, 22 ... Guide rod.

Claims (4)

[Claims] 1. A thermoplastic composition for stacking thin plate-shaped veneers on the surface of which projections for spacing are curved and formed at regular pitches, and welding and welding the projection and the flat surface of the next veneer that contacts. In the method for manufacturing a resin laminated material, alternately supplying veneers with different protrusion arrangements for spacing, raising the veneer supplied immediately before and supplying a new veneer below it, The newly supplied veneer is raised or the veneer supplied immediately before is lowered, and the projection or flat part of the newly supplied veneer is brought into contact with the flat part or projecting part of the veneer just supplied. In this state, the supporting means inserted into the top surface of the veneer supplied immediately before prevents the veneer supplied immediately before from rising, and the contact part between the veneer supplied immediately before and the veneer newly supplied. Is pressed upward from the bottom by a welding means such as a welding pin to weld the relevant contact part. A method of manufacturing a thermoplastic synthetic resin laminated material, which comprises laminating with an interval maintained. 2. The gap according to claim 1, wherein the welding means such as the welding pin is an ultrasonic oscillator, and the single plate supplied immediately before and the newly supplied single plate are ultrasonically welded. A method for producing a laminated material made of a thermoplastic synthetic resin, which is laminated as a laminate. 3. A supply means for sequentially supplying thin plate-shaped veneers, which are formed by curving projections for maintaining a space at a constant pitch on the surface thereof alternately at different projecting positions, and the veneers supplied are upwards. Lifting means that allows the new veneer to be fed underneath and to feed new veneer below it, support means that supports the veneer fed immediately before from above and prevents its rise, and veneer fed immediately before Manufacture of a thermoplastic synthetic resin laminated material for laminating at a gap characterized by comprising a welding means for pressing a contact portion of a newly supplied veneer upward from below to weld the contact portion. apparatus. 4. A lower bar 5 which can be lifted up and down from the side of the veneer from the side and can be moved up and down, and a support means is an upper bar which can be retracted from the side to the upper position of the veneer supplied immediately before. 6. The thin plate-like veneer supply means is a conveyor 4 that can be moved up and down so that the newly-supplied veneer can be lifted up to a position where it abuts against the veneer just supplied. The welding means is heated to a high temperature. 4. The gap according to claim 3, wherein the welding pin 10 has a sharp tip and penetrates a contact portion between the veneer supplied immediately before and the veneer newly supplied to weld the periphery of the through hole. An apparatus for manufacturing a laminated material made of a thermoplastic synthetic resin which holds and laminates.