JPH04130198U - Conveying device for sheet molded products - Google Patents

Abstract

(57) [Summary] [Purpose] Sheet molding that can always stably and efficiently transport sheet molded products without being affected by conditions such as the quantity of each molded product or their positional relationship. Provides a device for transporting goods. [Structure] In a conveyance device that transports a sheet molded product after molding by suctioning and holding it on a movable holding plate that moves up and down and slides freely, the holding plate 1 is used as the movable holding plate 1.
A plurality of through holes 8 are provided on the lower surface of the main body 7 through which air flows in and out from the intake/exhaust mechanism, and the main body 7 is provided with the through holes 8.
A structure having a suction part structure in which an elastic material 9 having air permeability was bonded to the entire lower surface was adopted.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention stably and efficiently transports sheet molded products during the manufacturing process. The present invention relates to a conveying device for sheet molded products.

0002

[Conventional technology]

Training is possible by forming the shape of multiple molded products on the original sheet for molding at once. In a method for continuously and efficiently manufacturing synthetic resin containers such as The original sheet for forming is cut every time one round of forming is completed (1 shot) by the forming machine. After that, the cut sheets are transported to a subsequent process. As a device that automatically conveys such sheet molded products after forming, especially As a device that can transport sheet molded products in the state after being By suctioning and adsorbing the sheet molded product to a movable holding plate that is equipped to ride, What it transports is known. The movable holding plate 30 in such a conveying device is shown in FIG. As shown, it is connected to the piping 32 from the intake and exhaust mechanism on the lower surface of the holding plate main body 31, and It is equipped with the same number of suction cup pads 33 as the number of molded products obtained by molding. and According to the above-mentioned conventional conveying device, the movable holding plate holds the sheet molded product 10 after trimming. Move to the point where b is waiting, and use each suction cup pad to remove the corresponding molded product 10b. It is possible to suction the internal bottom surface of the machine and move it to a predetermined point in the subsequent process while maintaining the suction state. Conveyance is performed by

0003

[Problem that the idea aims to solve]

However, the above-mentioned conveying device is not suitable for sheet forming in particular after trimming. The following problems arise when transporting goods. In other words, trimming improves the finished product after molding. As shown in Figure 3, the shape sheet has a molded part 20 and a cutout part 21 (a star-shaped cutout 22). It is cut and separated into 23) and the surrounding cutout23), and both parts are connected with a width of less than 1 mm. Due to the fact that the pieces are connected at several points, conventional conveying devices do not have the ability to absorb Only the parts of each molded product are suctioned and held by the board pads, and the parts left for extraction are not suctioned. As a result, the pull-out portion may separate from the molded part and be left behind during suction. Alternatively, problems such as falling during transportation occurred. Moreover, it was trimmed The later parts of each molded product are not of uniform height, but are slightly uneven and have height differences. Therefore, if the suction pad comes into strong contact with the molded part in this condition, it may be difficult to remove it. The part may easily separate from the molded part, which may lead to the problem of being left behind or falling off as described above. On the other hand, if the contact of the suction cup pad is weak, the suction force by the pad will be reduced. The disadvantage is that it is easy to cause suction errors because some parts of the molded product are not fully covered. It was. In addition, conventional conveying equipment can only be molded under the conditions of the molded product, that is, in one molding process. If the quantity of molded products or the positional relationship of each molded product changes, replace the suction cup each time. The trouble of having to adjust the number and position of parts to correspond to each molded part is eliminated. Production efficiency decreases because it is complicated and requires a lot of time for adjustment work. It had the disadvantage of inviting

0004 This invention was devised in view of the problems of the conventional technology mentioned above, and it Always stable and effective without being affected by conditions such as the quantity of products or their positional relationships. The purpose is to provide a transport device for sheet molded products that can efficiently transport sheet molded products. shall be.

[0005]

[Means to solve the problem]

In other words, the sheet molded product conveying device of the present invention lifts and lowers the sheet molded product after molding. and a transport device that transports the product by suctioning and holding it on a movable holding plate that can slide freely. When the movable holding plate is installed, air from the intake and exhaust mechanism flows out to the bottom surface of the main body of the holding plate. In addition to providing multiple through-holes for the It is characterized by having an adsorption part structure laminated with an elastic material having .

[0006]

【Example】

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic diagram showing an embodiment of the device of the present invention, and FIG. 2 is a schematic diagram showing the movement of the device of the present invention. It is a partially sectional explanatory view showing one aspect of a holding plate. The conveyance device of this example is used for the molding process. And the sheet molded product 10a in an integrated form after the cutting process (see Figure 3) and the table press device Transport the sheet molded product 10b (see Figure 4) in the divided form after trimming by The conveyance device used to hold each of the above-mentioned sheet molded products by suction The movable holding plates (1a, 1b) for the purpose of is a movable holding plate (1a) that adsorbs the sheet molded product 10a in the integral form after molding. Alternatively, a conventional suction cup pad may be used.

[0007] In FIG. 1, 1 is a movable holding plate, and the holding plate 1 moves, for example, on a track 2 in a cylinder. It can be moved up and down by the cylinder 5 vertically installed on the slide plate 4 which is moved by -3. Therefore, it is possible to raise and lower (in the direction of arrow X in the figure) and slide (in the direction of arrow Y in the figure) It has a mechanism that can operate freely. The movable holding plate 1 in the present invention is shown in FIG. Piping 6 from the intake and exhaust mechanism consisting of a sea urchin compressor, switching valve, etc. is connected. A retaining plate main body 7 has a hollow box-like structure, and a retaining plate main body 7 has a hollow box-like structure, and a retaining plate main body 7 has a hollow box-like structure. A plurality of through-holes 8 and a vent bonded to the entire bottom surface of the main body where the through-holes 8 are provided. It is made up of an elastic material 9 having elastic properties. The above-mentioned through hole 8 is opened by an air intake and exhaust mechanism. Air can flow in and out through the hollow portion of the main body 7.

[0008] Next, the operation of the device of this embodiment will be explained. According to the conveying device of this embodiment, the movable holding plate 1a keeps the sheet in the form after forming. The sheet molded product 10a is mounted on a table press from the positioning process (point A in Figure 1) after molding. It is transported to the trimming process (point B in Figure 1) by the movable holding plate 1b. After trimming, the sheet molded product 10b is transferred from the trimming process (point B) to the carrying out process (Fig. Transport to point C) in 1. Conveyance by these two moving holding plates is linked and simultaneous. It will be held on. Note that both the movable holding plates 1a and 1b have the structure of the present invention. I will explain.

[0009] First, the sheet molded product 10a is placed on the conveyor 11 from the previous process of forming and cutting. It is transported to point A in the deciding process and placed in a fixed position. As soon as the position is determined As the movable holding plate 1a begins to move down due to the operation of the cylinder 5, the switching valve starts sucking. It is set on the pull side and the suction by the suction/exhaust mechanism starts, and the elastic material 9 comes into contact with the molded product. It stops descending when Simultaneously with the operation of the movable holding plate 1a, the movable holding plate 1b At point B of the trimming process, the sheet is lowered under suction and the sheet molded product 10b after trimming is removed. It will stop when it comes into contact with. At the point when the movable holding plate in the suction state comes into contact with each sheet molded product, each sheet molded product The product is attracted to each holding plate 1 while in contact with the elastic member 9 surface. Movement in this invention Adsorption by the holding plate is mainly done by suctioning the air inside the molded product. It is done. In addition, especially in the case of sheet molded product 10b after trimming, the movable holding plate The suction force is mainly applied to the molded part 20, but some suction force is also applied to the removal area 21. It is thought that this will be the case.

0010 Next, the movable holding plates 1a and 1b, which have absorbed each molded product, simultaneously move the cylinder 5. It will rise to a predetermined height and stop. Then move and hold with cylinder 3 The plate 1a slides from point A to point B, and the movable holding plate 1b slides from point B to point C. move. Next, both retaining plates 1a and 1b simultaneously begin to descend due to the operation of the cylinder 5, and Immediately before the lowering stop position, the switching valve is set to the exhaust side and the exhaust by the intake and exhaust mechanism is opened. will be started. As a result, each sheet molded product is released from the suction force of the movable holding plate, and As a result, the sheet molded product 10a is removed by the TomSolution of the stand press device 12 in the trimming process. The sheet molded product 10b is placed on a slide table 14 equipped with a blade 13, and one sheet molded product 10b is transported. They are lowered onto the lifter conveyor 15 in the exit process and stacked. to this point One transport operation is completed at this stage. After the above conveyance work is completed, the movable holding plates 1a and 1b both rise, and then the The cylinder 3 slides back to point A or point B and is ready for the next conveyance. Wait for work. For subsequent transportation, repeat the above movements in the same way. It will be done. In addition, each of the above operations is performed automatically by control mechanisms such as various detectors and switches. dynamically controlled.

[0011] In addition, during the trimming work, the sheet molded product 10a is mounted on a stand press by the movable holding plate 1a. After being transported onto the slide table 14 at the position, transport by the moving holding plate 1b starts. The execution will be completed in the time it takes. Specifically, sheet molded product 10a is a slide table. When the molded product 10a is conveyed onto the table 14, the table 14 slides and the molded product 10a is transferred to the table press machine. 12, trimming is performed by the press device 12, and then the tape is transferred again. The movable holding plate 1b slides the trimmed product 10b to its original position The vehicle is transported to point B, where it is transported by. In addition, the lifter conveyor in the above-mentioned unloading process The arm 15 is small so that the position of loading and unloading the molded product 10b by the movable holding plate 1b is constant. The molded product is lowered step by step, and when the predetermined number of stacked pieces is reached, the molded product is lowered further. 10b is discharged to the unloading location.

0012 The above-mentioned through hole 8 in the present invention allows air to smoothly flow in and out through the intake and exhaust mechanism. A large number of holes are usually provided uniformly over the entire lower surface of the retaining plate main body 7. However, the number and diameter of the holes will depend on the shape of each molded product such as the tray and the arrangement of each molded product. They are appropriately selected depending on the combination and conditions such as the capacity of the intake and exhaust mechanism. for example, The bottom surface of the main body is 1100mm x 1100mm in size, and there are 50 through holes with a hole diameter of 5mm. The holes are drilled in a grid pattern at mm intervals. In addition, the elastic material 9 has good cushioning properties, and the air from the through holes 8 can pass through uniformly. Any material may be used as long as it has sufficient air permeability. For example, continuous Soft urethane foam with a cell structure responds well to the uneven shape of the lip of trays, etc. It is preferable because it adheres easily and has excellent suction power against the area to be removed. Yes. In addition, conditions such as its thickness, hardness, and bubble size are determined by its cushioning properties, breathability, etc. be selected as appropriate based on the relationship between The elastic material 9 may be double-sided tape, adhesive, etc. It is attached to the lower surface of the main body without blocking the through hole. Furthermore, the holding plate main body 7 is not limited to a hollow box-shaped structure as in this embodiment; The shape and structure of the hollow portion may be of other shapes, such as a hollow square pyramid or trapezoid. There may be. If this main body 7 has a hollow structure, its internal capacity will depend on the intake and exhaust mechanism. It is desirable that the size is small in order to efficiently discharge the trapped air. Further protection The holding plate main body 7 may not have a hollow structure but may be a simple plate-like structure, in which case each penetrating Piping 6 from the intake and exhaust mechanism is appropriately distributed and directly connected to the through hole 8 . In any case Even if the main body is in the form of Needless to say, it is larger than the area occupied by the entire product.

[0013] Note that the conveyance device of the present invention can be used for relatively lightweight sheet molded products, depending on the material of the molded product. There are no restrictions regarding molded polystyrene resin sheet products (PSP molded products). It is suitable for transporting products).

[0014]

[Effect of the idea]

As explained above, in the conveying device of the present invention, the movable holding plate has the suction part structure as described above. Because it has achieved Compared to so-called "point-like suction" using a suction cup pad, so-called "plane-like suction" via an elastic material is more effective. Since the process is carried out without being influenced by conditions such as the quantity or positional relationship of the molded products, It is possible to always use the same movable holding plate for suction and holding, resulting in reliable and stable efficiency. Good transportation is possible. In addition, in this invention, the movable holding plate adsorbs the molded product using a shock absorbing material. Because it is carried out through soft materials, it is difficult to use for relatively soft materials such as sheet molded products. It is possible to achieve adsorption and retention without causing deformation or damage, and there is no space between each molded product. Even if there are differences in height, suction errors are less likely to occur. Especially the sheet formation after trimming. For shaped products, excessive pressure is applied to the removal area due to adsorption through the elastic material. This prevents the pull-out portion from inadvertently separating from the molded part. Problems such as the removal part left behind when suctioning and falling off during transportation, as in the case of the previous device. No problem occurs. In addition, the problem of the removal allowance part falling off during transportation will not occur. This is also due to the fact that the suction force of the holding plate is also applied to the removal margin. Furthermore, the quantity and positional relationship of sheet molded products (including positional relationships due to size differences) The movable holding plate of the same structure can always be used for suction holding and conveyance without being affected. This eliminates the need to adjust the number and arrangement of suction cup pads as in conventional devices. This also helps improve production efficiency.

[Brief explanation of drawings]

FIG. 1 is a conceptual diagram showing an embodiment of the device of the present invention.

FIG. 2 is a partially cross-sectional explanatory diagram showing an example of a movable holding plate in the device of the present invention.

FIG. 3 is a perspective view showing an example of a sheet molded product in an integral form after molding.

FIG. 4 is a perspective view of essential parts showing an example of a sheet molded product in a divided form after trimming.

FIG. 5 is an explanatory diagram showing a movable holding plate in a conventional conveyance device.

[Explanation of symbols]

1 Moving holding plate 7 Holding plate body 8 Through hole 9 Elastic material with breathability 10a Sheet molded product after molding 10b Sheet molded product after trimming

Claims (1)

[Scope of utility model registration request] 1. A conveyance device that transports a sheet molded product after molding by suctioning and holding it on a movable holding plate that moves up and down and slides freely, the movable holding plate having an air intake and exhaust mechanism on the lower surface of the main body of the holding plate. Transport of a sheet molded product characterized by having a plurality of through holes through which air flows in and out, and having a suction part structure in which a breathable elastic material is laminated to the entire lower surface of the main body where the through holes are provided. Device.