JP3519340B2 - Thermoformed product removal stacker - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thermoformed product take-out stacker for trimming a thermoformed product from a thermoformed thermoplastic resin sheet by a die press and then separating the thermoformed product from scrap.

[0002]

2. Description of the Related Art Conventionally, a trimming device using a die press is arranged off-line with respect to a thermoforming line for forming a thermoformed product on a resin sheet. The manufactured sheet is taken out from the thermoforming line, cut into a predetermined size, a plurality of sheets are stacked and the thermoformed product is cut out by a trimming device. And
The cut thermoformed product is almost manually removed.

[0003]

As described above, in the trimming device which is used off-line, the thermoformed product has to be taken out manually, so that the working efficiency is not good. Also, to perform trimming by die press online, not only follow the thermoforming cycle,
It is difficult to separate the scrap and the product at the same time because they have to be discharged and separated at the same time.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a thermoformed product take-out stacker capable of taking out thermo-formed products online efficiently in accordance with trimming by a die press.

[0005]

In order to achieve the above object, the invention according to claim 1 is an opening arranged in a discharge path for a trimmed thermoformed product and a scrap so that the thermoformed product can be discharged downward. With an opening table, a drop door capable of opening and closing the opening and opening at the timing when the thermoformed article is located above the opening, and arranged above the opening table and synchronized with the opening timing of the dropping door. Then, the pushing arm for pushing the thermoformed product into the opening and the elevator which is arranged below the opening and holds the thermoformed products that have been dropped and which can control the height position according to the number of stacked layers And a take-out table for taking out the thermoformed product held on the elevator.

In the invention according to claim 1 configured as described above, the opening table is arranged in the discharge path of the trimmed thermoformed product and the scrap, and the trimmed thermoformed product is collected together with the scrap to be recovered. It moves on the opening table. The opening table is formed with an opening through which the thermoformed product can be discharged downward, and the drop door capable of opening and closing the opening opens at the timing when the thermoformed product is located above the opening. Although the thermoformed product falls even if the drop door is opened, the pushing arm arranged above the opening table pushes the thermoformed product into the opening in synchronization with the opening timing of the dropping door. Then, since the elevator is arranged below the opening, the thermoformed products that are pushed in and fall are stacked and held. Generally, in the case of thermoformed products that have downward openings, the fall path is unstable if it is a natural fall, but if the pushing arm pushes the drop speed or more, move the thermoformed product to the expected position. You can Also, since the elevator can stand by at a height position that corresponds to the number of stacked layers, keep the thermoformed products stacked at the top so that the thermoformed products are crushed by the pushing arm. Disappears. In addition, it is possible to prevent the sheets from being overlaid one after another without being overlaid at the correct position and collapsing in the middle.

Since the opening table is generally arranged adjacent to the die press, the thermoformed product trimmed by the die press is separated from the scrap. However, the thermoformed product whose outer shape is trimmed can be moved as it is along with the scrap movement in the horizontal plane in the sheet direction. In order to move the thermoformed product in this manner, the invention according to claim 2 provides the thermoformed product take-out stacker according to claim 1, wherein the opening table is a tension roller that sends out the scrap at a predetermined tension. It is configured to have.

In the invention according to claim 2 configured as described above, the tension roller applies a predetermined tension to the scrap. In this way, the thermoformed product moves relatively smoothly from the die press onto the opening table. The die press and the thermoformed product take-out stacker may be integrated or separated, and since the shape of the die changes according to the shape of the thermoformed product, the height of the die press and the opening table can be adjusted. It is difficult to keep constant. Therefore, the opening table is configured so as to be vertically movable.

In the above construction, since the opening table is supported so as to be movable up and down, it is possible to adjust the height with the die press. If the heights are adjusted in this way, the thermoformed product will naturally move onto the opening table by simply sending out the scrap. An opening is formed in the opening table, and a drop door provided in this opening is appropriately opened and closed to drop the thermoformed product. Various structures can be adopted for the structure of the drop door. As an example, the invention according to claim 3 is the thermoformed product take-out stacker according to claim 1 or 2. The drop door is configured to slide reciprocally on the opening table from the upper portion of the opening toward the downstream side in the scrap flow direction.

In the invention according to claim 3 configured as described above, the drop door reciprocally slides on the opening table from the upper portion of the opening toward the downstream side in the scrap flow direction. Initially, the drop door is located above the opening and closes the opening, so that even if the thermoformed product moves with the scrap, it does not drop from the opening.
Then, when the drop door moves toward the downstream side in the scrap flow direction at the timing when the thermoformed product is completely located above the opening, the opening is opened and the thermoformed product falls downward as described above. Go. At this time, the pushing arm pushes down the dropped product and then retreats upward, but after the retreat, the drop door moves to the upper side of the opening again and closes the opening.

Although the drop door first moves to the downstream side, the thermoformed product is removed from the scrap on the downstream side, and even if the drop door moves to the downstream side in this way, the thermoformed product is caught. There is no such thing. If you try to move it upstream, it may get caught in the thermoformed product that moves with the scrap. Further, after the thermoformed product is dropped, it returns to the upstream side, but only returns to the place where the thermoformed product has already dropped, and is not caught by the thermoformed product.

Since the pushing arm is pressed against each thermoformed product from above, it is necessary to correspond to the position of the thermoformed product. Therefore, the invention according to claim 4 is the thermoformed product take-out stacker according to any one of claims 1 to 3, wherein the pushing arm has a plurality of removable rod-shaped bodies, and The position is adjusted so as to face the molded product. In the invention according to claim 4 configured as described above, since the pushing arm is composed of a plurality of detachable rod-shaped bodies and the positions thereof can be adjusted, the thermoformed product can be Even if the position changes, the position can be easily adjusted and dealt with. Also, the height of the thermoformed product can be adjusted by changing the length of the rod-shaped body.

It is the elevator that waits for the molded article to fall. As an example of the construction of this elevator, the invention according to claim 5 is the thermoformed product take-out stacker according to any one of claims 1 to 4. In the above, the elevator is configured to have a counter that counts the number of drops and a position adjusting mechanism that gradually lowers the height position by a predetermined distance according to the number of drops. In the invention according to claim 5 configured as described above, the number of thermoformed products that fall is counted by a counter, and the height position of the elevator is lowered corresponding to the number of stacked stages. Although the thermoformed product is pushed down by the pushing arm, the pushing depth at this time should not be so deep. However, if the height of the elevator remains high from the beginning, the thermoformed product becomes high immediately, and if it is left as it is, it may be crushed when the thermoformed product is pushed down. For this reason, the elevator position should be set as high as possible at the beginning, and as the thermoformed products are piled up, the elevator should be lowered by the thickness of the thermoformed products. The depth of pushing down the product can be made constant. Of course, it doesn't have to be deep.

The thermoformed product held in the elevator is carried out to the take-out table. As an example of this take-out table, the invention according to claim 6 is the thermoformed product take-out stacker according to any one of the above-mentioned claims 1 to 5, wherein the take-out table is substantially at a lowermost position of the elevator. It is configured to have a belt conveyor closely arranged so as to be flush with each other, and a slide arm that moves from the back side position of the elevator toward the belt conveyor at the lowermost position.

In the invention according to claim 6 configured as described above, the belt conveyors are closely arranged so as to be substantially flush with each other at the lowermost position of the elevator, and the elevator holds the thermoformed product. In the state, when they descend to the lowest position, they line up almost horizontally. In this state, since the slide arm moves from the back side position of the elevator toward the belt conveyor, the thermoformed product held by the elevator is pushed out onto the belt conveyor, and if the belt conveyor is driven, It is carried out on the belt.

In order for the slide arm to move from the rear position of the elevator toward the same belt conveyor as described above, it is necessary that there be no interfering mechanical element between them, and as an example, claim 7 The invention according to claim 6 is the thermoformed product take-out stacker according to claim 6, wherein the elevator has a table plate on which the thermoformed product is placed, a column oriented in a substantially vertical direction, and a take-out unit from the column. And a support arm that extends from the side to the back and supports the table plate at its tip and is vertically driven along the column.

In the invention according to claim 7 configured as described above, the elevator has a pillar vertically oriented as a basic structure, and the support arm is vertically driven along the pillar. By doing so, the table plate on which the thermoformed product is placed is moved up and down. The support arm extends from the take-out side to the inner side of the support, and the tip of the support arm supports the table plate.Therefore, there is a distance from the position of the table plate to the support, and the belt The conveyor can reach that far as much. Therefore, even if the slide arm itself reciprocates only on the inner side of the column so as not to interfere with the column, it can freely move from the table plate to the belt conveyor.

[0018]

As described above, according to the present invention, the thermoformed product trimmed by the die press and carried out from the die press together with the scrap is dropped below the opening of the opening table. A thermoformed product takeout stacker that can be taken out can be provided. Further, the height of the table surface can be made flush even when the table is adjacent to the die press, and it is possible to prevent the table from being caught when the thermoformed product is taken out.
Further, according to the second aspect of the present invention, it is possible to prevent the thermoformed product from being caught when the thermoformed product is taken out, by sending out the product while applying tension with the tension roller.

Further, according to the invention of claim 3,
Since the drop door is moved only on the downstream side of the opening, it does not move below the scrap accompanied with the thermoformed product, and it is possible to prevent the thermoformed product from being caught when it is taken out.

Further, according to the invention of claim 4,
The pushing arm having an appropriate length can be arranged at an appropriate position according to the arrangement of the molded product. Further, according to the invention of claim 5, by lowering the elevator in accordance with the number of stages of the thermoformed products to be laminated, the height of the uppermost stage can be always kept constant, and the thermoformed products are prevented from collapsing. Can be stacked. Further, according to the invention of claim 6, the thermoformed product held on the elevator can be easily taken out by utilizing the belt conveyor.

Further, according to the invention of claim 7,
It becomes possible to configure the slide arm without interfering with the columns that make up the elevator.

[0022]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side view showing a thermoformed product take-out stacker according to an embodiment of the present invention.
2 is shown in a plan view, and FIG. 3 is shown in a front view. In FIG. 1, an opening table 20 is provided above the four-legged frame 10 as a reference, an elevator 30 and an ejection table 40 are provided inside the frame 10, and the frame 10 is supported above the frame 10 by another structure. A push arm 50 is arranged.

The opening table 20 shown in FIG.
0 is supported by a vertical movement mechanism 21 using a ball screw shown in FIG. In this vertical movement mechanism 21, the sprocket 21a1
The endless chain 21b is disposed so as to be drivable via the, and the chain 21b is capable of rotating the female screws 21c provided at the upper ends of the four legs in a predetermined direction. Each female screw 21c is rotatably and immovably supported by the upper end of the leg, and is screwed to the ball screw 21d. The ball screw 21d has the upper end on the table frame 21.
Since it is fixed so as not to rotate with respect to f, the motor 21
The chain 21b is driven in a predetermined direction by a and the female screw 2
When 1c rotates, the same bolt screw 21d moves up and down relatively and the table frame 2 fixed to the upper end
If moves up and down. The vertical movement mechanism 21 is also shown in FIG.

In the present embodiment, the ball screw mechanism driven by the chain is moved up and down, but it can be appropriately changed by moving up and down by hydraulic pressure. Further, the ball screw mechanism may be manually moved up and down. Further, although the opening table 20 is moved up and down, the frame 10 may be entirely extended in the up and down direction. In addition, the frame 10 may not be self-supporting but may be attached at a predetermined height position to a die press (not shown) adjacent to the frame.

As shown in FIG. 2, a table plate 22 having an opening 22a is formed on the upper portion of the opening table 20, and a drop door 23 is provided so as to close the opening 22a. Slider shafts 24a are horizontally arranged on both sides of the table plate 22 in the front-rear direction, and sliders 24 fixed to the respective slide shafts 24a are slidable in the axial direction.
b is provided. The drop door 23 is fixed to the sliders 24b, 24b on both sides so as to straddle the table plate 22, and can slide horizontally on the table plate 22 in the front-rear direction.

Here, the opening 22a is arranged on the front side (right side in the drawing) of the table plate 22, and the drop door 23 closes the opening 22a at the slide position on the front side. In this closed position, the drop door 23 is located at substantially the same position as the front end of the table plate 22. On the other hand, when the opening 22a is opened, the drop door 23 moves in parallel to the rear slide position, but at this slide position, the opening 22a almost opens in front.

An endless chain 25a is arranged parallel to the slide shafts 24a, 24a, and can be rotationally driven in a desired direction by a motor 25b. Since the drop door 23 is fixed to a part of the chain 25a, when the motor 25b is rotated in a predetermined direction, the drop door 23 is driven in the front-rear direction. In this example, one drop door 23 closes the entire surface of the opening 22a, but
It is composed of two drop doors that open and close in the front-rear direction below the opening table plate 22, or the drop doors 23 are not driven horizontally but one side is pivotally supported to open one side or two sides. It may be configured to open and close downwards.

On the rear end side of the opening table 20, a drive roller 26a having a substantially full width is provided, and a drive motor 26b is connected to the end portion thereof. An idler 26c is arranged on the drive roller 26a, and the idler 26c is driven by the actuator 26d.
It can be pressed or released toward 6a. The scrap is sandwiched between the idler 26c and the drive roller 26a, and the drive motor 26b is driven to rotate, so that a predetermined tension is always applied to the scrap. That is, the drive roller 26a and the idler 26c constitute a tension roller.

Of course, the tension applied to the scrap is not limited to the combination of the idler 26c and the driving roller 26a, but a claw-shaped roller may be combined. As shown in FIGS. 1 and 6,
An elevator 30 is provided inside the frame 10. The elevator 30 is provided with columns 31 and 31 which are vertically disposed inside the frame 10 and are covered with a cover, and the columns 31 and 31 have a slide shaft (not shown). A support arm 32 is slidably supported on the slide shaft along the axial direction.
Drive chain 31a and drive motor 31 arranged in
It is adapted to be vertically driven to an arbitrary position along the slide shaft by b. The support arm 32 is extended from the column 31 to the front side, and is formed so as to extend obliquely upward and forward from the tip of the support column 32. A horizontal bar 33 supports a horizontally oriented table plate 34.

The support arm 32 has such a shape in order to move the thermoformed product to the ejection table 40. As shown in FIGS. 1 and 6, the take-out table 40 has a belt conveyor 41 extending from the position of the pillar 31 of the elevator to the outside of the frame 10, and at the tip end side of the belt conveyor 41. Has a shorter fixed table 42 arranged in the longitudinal direction. Elevator 3
The table plate 34 of 0 can be lowered to a height position where it is substantially flush with the fixed table 42, and at this position, the slide arm 43 driven in the horizontal direction moves from above the table plate 34 to the fixed table 42. It is possible to move horizontally through the top and backward.

That is, as shown in FIG. 3, the slide arm 43 has a length approximately equal to that of the table plate 34 with respect to the drive bar 43a supported in a cantilever manner.
4 is constructed by fixing a punch plate 43b arranged vertically so as to scrape out the mounted object, and the drive bar 43a is horizontally parallel to the front and rear direction by a side post 44 containing a motor 44a and a drive chain 44b. It is movable. That is, the drive chain 44b is driven by rotating the motor 44a in the side post 44,
The drive bar 43a is moved in the front-back direction. Then, the punch plate 43b is fixed to the fixed table 4 from above the table plate 34.
It passes through the upper part of 2 and moves to the front end part of the belt conveyor 41. That is, the placed object on the table plate 34 is pushed and moved onto the belt conveyor 41.

At this time, the support arm 3 of the elevator 30
As described above, the table 2 protrudes forward from the column 31 and extends obliquely forward, so that the table plate 34
Is located substantially in front of the column 31, and the front end of the belt conveyor 41 is also located in front of it by that much. On the other hand, in order for the slide arm 43 to move the thermoformed product on the table plate 34 to the belt conveyor 41, the punch plate 43b is used.
Must move to the front end portion of the belt conveyor 41, but since the support column 31 is located considerably rearward, the drive bar 43a and the support column 43 are not supported even though the side posts 44 are located outside the support column 31. 31 does not interfere with each other.

The length of the belt conveyor 41 can be appropriately determined depending on the arrangement position and the like, and the one shown in FIG. 1 has a caster 41a for supporting the belt conveyor 41 at the rear end position. In the present embodiment, the molded product is moved from the elevator 30 to the take-out table 40 by being pushed out by the slide arm 43, but it can be appropriately modified such as being slanted and slid down. Further, the belt conveyor 41 is not essential and may be taken out via another conveyance mechanism. Needless to say, the molding may not be completed by this, and the belt conveyor 41 may be used to convey the material to the next step.

A pushing arm 50 is shown in FIGS. The pushing arm 50 is vertically movably supported while being arranged in parallel with the actuator 52 that can drive the drive shaft 51 in the vertical direction, and is connected at the upper end to the drive shaft 51 via the horizontal bar 53a. It has a connecting shaft 53b that is connected to the mounting arm 54 at its lower end. That is, the central portion and the outer portion of the mounting arm 54 oriented in the width direction of the molded sheet are suspended and supported so that the mounting arm 54 can move up and down while maintaining the horizontal state as a whole. There is. The mounting arms 54 have a plurality of rod-shaped bodies 5 which can be spaced at desired positions and whose lengths can be adjusted.
5 is attached. Each rod 55 faces the thermoformed product from above and is driven downward when the drop door 23 is opened, so as to push the thermoformed product downward. Therefore, the length is also adjusted depending on the height of the thermoformed product and the fall distance for stacking on the elevator 30.

Since the push-in arm 50 only has to fulfill the role of pushing down each thermoformed product, various configurations other than the use of the actuator 52 described above are possible. For example, when the rear end of the opening table 20 is rotatably supported on the rear end side of the table frame 21f and the front end is movable in an arc shape, the front end portion is arcuate above the front end side of the table frame 21f. Move up and down while drawing. The vertical movement may be used to drop the thermoformed product.

FIG. 7 is an electrical block diagram for controlling the configuration of each of the above parts, which has a control circuit 60 for inputting an external control signal to control the operation timing of each part. The motor 25b that drives the door 23, the actuator 52 of the push arm 50, the drive motor 31b of the elevator 30, and the motor 4 that drives the slide arm 43.
4a and the like are connected and drive is controlled at a predetermined operation timing shown in FIG. In addition, drive signals are appropriately sent to the drive motor 26b and the actuator 26d for applying tension to the scrap.

The control circuit 60 as described above can be constituted by a computer control circuit based on a CPU, and its control can be appropriately changed by software. Further, at least a counter 61 is provided inside, and the number of stacked stages of the thermoformed product is detected by counting the number of times the drop door 23 is opened and closed, and the elevator 30 is gradually lowered or the slide arm 43 is operated at the lowest stage. Since then, the elevator has been returned to the top stage. The control circuit 60 can also be realized by a sequencer including various hardware elements.

Next, the operation of this embodiment having the above configuration will be described. FIG. 8 is a timing chart showing the operation of the present thermoformed product take-out stacker, and the operation will be described with reference to this timing chart. In the trimming operation, the thermoplastic resin sheet is driven intermittently. Therefore, the thermoformed product trimmed and conveyed together with the scrap is also intermittently conveyed, and the thermoplastic resin sheet also intermittently moves on the opening table 20. And, when it stops, the drop door 23
The distance between the die press and the thermoformed product take-out stacker is adjusted so that it is located above.

As shown in FIG. 8, the dropping door 23 repeats the operation of opening at the timing of stopping the thermoplastic resin sheet and closing it before starting the movement. Falling door 2
As the actuator 3 opens, the actuator 52 of the pushing arm promptly moves downward, and the thermoformed product immediately after the drop door 23 is opened is reliably separated from the scrap and pushed down below the opening 22a. Initially, the table plate 34 of the elevator 30 is located at the uppermost stage, and the thermoformed product pushed down by the rod-shaped body 55 of the pushing arm 50 is placed on the table plate 34. At this time, the thermoformed product is not just an unstable free fall, but is forcibly pushed down, so that the thermoformed product is accurately placed at the expected position.

The rod-shaped member 55 instantly retracts upward, and the drop door 23 also closes. As described above, the drop door 23 moves to the downstream side in the scrap flow direction and opens, and moves to the upstream side to close. Since the thermoformed product has been removed on the downstream side,
It does not get caught, and even on the upstream side, the thermoformed product has been removed immediately before, so it will not get caught. In this way, as the thermoformed products are placed on the table plate 34 one by one, the table plate 34 is lowered. The lowering height is basically the height required to stack the thermoformed products. Therefore, the height of the uppermost layer of the thermoformed product laminated is constant at any stage.

Whether the elevator 30 has reached a predetermined number of stacked layers
When it reaches the bottom, the motor 44a is driven in a predetermined direction to reciprocate the slide arm 43 back and forth. At this time, move slowly to the rear side, and move at high speed when returning. In this way, the laminated thermoformed products are moved onto the belt conveyor 41 without breaking. Then, when the slide arm 43 returns to the original position,
The drive motor 31b of the elevator 30 is driven to return the table plate 34 to the uppermost initial position, and thereafter, this is repeated. The belt conveyor 41 may be always moved, or may be moved in a frame-feeding operation in accordance with the operation of the slide arm 43.

In this way, the thermoformed product trimmed by the die press is conveyed to the opening table 20 together with the scrap, and the dropping door 23 closing the opening 22a is opened while the intermittent feeding is stopped, and the pushing arm is pushed from above. At 50, the thermoformed product is pushed under the opening 22a, placed on the table plate 34 of the elevator 30 waiting below, and when a predetermined number of steps is reached, the thermoformed product is laminated on the table plate 34. Belt conveyor 41 of the take-out table 40
Since it is transferred to the upper side, the thermoformed product can be taken out while operating online.

[Brief description of drawings]

FIG. 1 is a schematic side view of a thermoformed product take-out stacker according to an embodiment of the present invention.

FIG. 2 is a schematic plan view of a thermoformed product take-out stacker.

FIG. 3 is a schematic front view of a thermoformed product take-out stacker.

FIG. 4 is a schematic plan view of a vertical movement mechanism.

FIG. 5 is a schematic sectional view of an opening table.

FIG. 6 is a schematic sectional view of an elevator and a slide arm.

FIG. 7 is an electrical block diagram of a thermoformed product take-out stacker.

FIG. 8 is a timing chart of a thermoformed product take-out stacker.

[Explanation of symbols]

10 ... Frame 20 ... Opening table 21 ... Vertical movement mechanism 21a ... Motor 21a1 ... Sprocket 21b ... Chain 21c ... female screw 21d ... Ball screw 21f ... table frame 22 ... Table board 22a ... opening 23 ... Falling door 24a ... slide shaft 24b ... slider 25a ... Chain 25b ... motor 26a ... Drive roller 26b ... Drive motor 26c ... idler 26d ... Actuator 30 ... elevator 31 ... Prop 31a ... Drive chain 31b ... Drive motor 32 ... Support arm 33 ... Horizontal bar 34 ... Table board 40 ... Extraction table 41 ... Belt conveyor 41a ... Casters 42 ... Fixed table 43 ... slide arm 43a ... Drive bar 43b ... punch plate 44 ... Side post 44a ... Motor 44b ... Drive chain 50 ... Pushing arm 51 ... Drive shaft 52 ... Actuator 53a ... Horizontal bar 53b ... Connection shaft 54 ... Mounting arm 55 ... Rod-shaped body 60 ... Control circuit 61 ... Counter

Front page continuation (72) Hideki Usami Hideki Usami 247 Asano Laboratory Co., Ltd., 158, Kitayama, Morogata, Togo-cho, Aichi-gun, Aichi (56) Reference JP 10-95045 (JP, A) JP 10 -95043 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) B29C 51/00-51/46 B29C 33/00-33/76 B29C 39/26-39/36 B29C 41 / 38-41/44 B29C 43/36-43 / 42,43 / 50 B29C 45/26-45/44 B29C 45/64-45 / 68,45 / 73 B29C 49/48-49 / 56,49 / 70

Claims (7)

(57) [Claims] 1. An opening table, which is arranged in a discharge path of a trimmed thermoformed product and a scrap, and through which the thermoformed product can be discharged downward, and is supported so as to be vertically movable, and the opening and closing of the opening. A drop door that is possible and opens at the timing when the thermoformed product is located above the opening; and a thermoformed product that is disposed above the opening table and that is synchronized with the opening timing of the drop door and that is inside the opening. The pushing arm that pushes in, the elevator that is placed below the opening and that holds the thermoformed products that have been dropped, and that can control the height position according to the number of stacked layers, and the heat that is held on the elevator. A thermoformed product take-out stacker, comprising: a take-out table for taking out a molded product. 2. The thermoformed product take-out stacker according to claim 1, wherein the opening table has a tension roller for sending out the scrap at a predetermined tension. 3. The thermoformed product take-out stacker according to claim 1 or 2, wherein the drop door is directed from the upper part of the opening to the downstream side in the scrap flow direction on the opening table. A thermoformed product take-out stacker characterized by sliding back and forth. 4. The thermoformed product take-out stacker according to any one of claims 1 to 3, wherein the pushing arm has a plurality of removable rod-shaped bodies and faces each thermoformed product. A thermoformed product take-out stacker that is position-adjustable. 5. The thermoformed product take-out stacker according to any one of claims 1 to 4, wherein the elevator has a counter that counts the number of drops and a height that gradually increases by a predetermined distance according to the number of counts. A thermoformed product takeout stacker having a position adjusting mechanism for lowering the position. 6. The thermoformed product take-out stacker according to any one of claims 1 to 5, wherein the take-out tables are closely arranged so as to be substantially flush with each other at a lowermost position of the elevator. A thermoformed product take-out stacker having a belt conveyor and a slide arm that moves from the innermost position of the elevator toward the belt conveyor at the lowermost position. 7. The thermoformed product take-out stacker according to claim 6, wherein the elevator includes a table plate on which the thermoformed product is placed, a column oriented in a substantially vertical direction, and a take-out unit from the column. A thermoformed product take-out stacker, which has a support arm that extends from the side to the back and that supports the table plate at its tip and that is vertically driven along the column.