JPH07314391A - Method and device for trimming synthetic resin molding - Google Patents

Abstract

PURPOSE:To perform the trimming of sheets S with product after forming, and surely separate the product from trimmed chips. CONSTITUTION:A movement table 20 is provided with a sucking mechanism 21 for each product and, while sucking each product (a) on trimmed un-separated sheets S', lowers the products and separates them completely from trimmed chips (b) at a separation part D. Thus sheets S with products and the un- separated sheets S' are transferred stably, and the products (a) are separated smoothly from the trimmed chips so as to increase the efficiency of a trimming work.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for trimming a synthetic resin molded product.

[0002]

2. Description of the Related Art Conventionally, a synthetic resin sheet such as a foamed sheet is press-formed or sheet-formed by other means to form a number of molded products into a sheet. It was necessary to cut so that each product could be separated. The above-mentioned cut for separating each product is called trimming, and the trimming is performed by pressing using a cutting edge table having a Thomson blade or the like. Therefore, it is very important in automating the trimming method how much the trimming scraps, which are the scraps of the sheet other than the product, and where they are separated from each other are separated.

This is because if some of the products are separated and scattered in the middle of the process, not only the stack of the products after trimming will be hindered but also the transport of other products will be hindered, and automation will not be carried out smoothly. If the separation work is not reliable,
There was a problem that the cycle of trimming work could not be increased. Therefore, in the present invention, the trimming method improved for the purpose of reliably transferring the sheet with the product before trimming and the unseparated sheet after the trimming cut and accurately separating the product from the trimming waste. And a trimming device.

[0004]

In the trimming method according to the present invention that can achieve the above object, the product-added sheet can be manually supplied in claim 1, and the product-added sheet after the sheet forming can be removed. After supplying the set to the blade stand, the sheet with the set product is transferred to the cutting press section by the punching blade and trimming is performed by the punching blade, and the unseparated sheet after the trimming cutting is placed in the original position on the punching blade stand. Then, the unseparated sheet after trimming cut on the extraction blade table is adsorbed by the adsorption mechanism corresponding to each product and transferred to the separation section by the moving table, and in the separating section, the adsorption mechanism of the moving table is used. It is characterized in that only the product is adsorbed and lowered to be separated from the trimming waste and collected, and the separated trimming waste is discharged by the conveying means.

In the second aspect, the supply of the product-equipped sheet is automated by a suction system, and the product-equipped sheet after the sheet is formed is sucked by the suction mechanism to the extraction blade base and the first moving base. In addition, the trimming-cut unseparated sheet on the punching blade table is sucked by the suction mechanism corresponding to each product and is transferred to the separating section by the second moving table, and then the preceding cutting blade table. The product-equipped sheet is transferred to the cutting press section by the punching blade base and trimming is cut by the punching blade, and the unseparated sheet after trimming cutting is returned to the original position by the punching blade base. The unseparated sheet in the separation section during cutting is lowered by the suction mechanism of the second moving table while adsorbing only the product and separated from the trimming waste to be collected, and the separated trimming waste is conveyed. Discharge by means It is characterized by causing.

In particular, the trimming cut in the above-mentioned cut is preferably performed in a shape such that the trimming scraps are connected at least in the vertical and horizontal directions between the outer peripheral portion of the sheet and the product. Next, regarding the trimming device, as in claim 4, a cutter blade table that can receive and transfer the product-equipped sheet, and a blade receiving plate that trims and cuts the product-equipped sheet transferred by the cutter blade holder together with the cutter blade holder. A cutting press section, a moving table that can transfer the unseparated sheet after trimming cutting by a suction mechanism corresponding to each product, a separation table that receives the unseparated sheet transferred by the moving table, and an unseparated table. It has a clamp frame for the periphery of the sheet and a conveying means for discharging trimming scraps after unclamping, and the moving table lowers the unseparated sheet transferred to the separation section while adsorbing only the product with the suction mechanism. The device corresponding to the method of claim 1 is characterized in that it can be separated from the trimming waste. Next, in claim 5, a first moving table capable of adsorbing and transferring the product-attached sheet after the sheet formation by an adsorption mechanism,
A cutting blade unit capable of receiving and transferring the product-attached sheet transferred from the first moving table, and a cut press unit having a blade receiving plate for trimming and cutting the product-attached sheet transferred by the extractor blade base together with the extractor blade base. A second moving table capable of adsorbing and transferring the unseparated sheet after trimming by an adsorbing mechanism corresponding to each product; a separation table for receiving the unseparated sheet transferred by the second moving table; It has a clamp frame for the periphery of the sheet and a conveying means for discharging the trimming scraps after releasing the clamp, and the second moving table sucks only the product by the suction mechanism to the unseparated sheet transferred to the separating section. The method according to claim 2 is characterized in that it can be lowered as it is and separated from the trimming waste.

Further, in the apparatus of claim 5, in the trimming device, the first movable table and the second movable table are connected so as to be simultaneously transferable as in claim 6, and the cylinders are provided respectively. It is preferable that each suction mechanism is provided so as to be movable up and down. Further, in the apparatus according to claim 4 or 5, in the trimming device, the clamp frame includes a plurality of rollers provided inside a vertically movable frame provided outside the separation table as in claim 7, and the rollers. It is preferable to use a roller that can be brought into and out of contact with. Further, in the apparatus according to claim 4 or 5, the conveying means for discharging the trimming scraps in the trimming device is not provided in a part of a frame provided outside the separation table and movable up and down as in claim 8. It is preferable to use a roll type roll in which a roll provided across the width of the separation sheet and a roll that can move vertically to and from the roll are combined.

[0008]

The operation of the above-described trimming method of the present invention will be described with reference to the movement of only one sheet. The sheet with the product after the sheet forming is supplied manually or by the first moving table sucked by the suction mechanism. Placed on the extraction stand. The sheet with the product is transferred to the cutting press section by this punching table and is trimmed and cut by being pinched by the blade receiving table and the punching table, and returns to the punching table section in the original position together with the punching table. Then, the unseparated sheet after trimming is adsorbed by the adsorbing mechanism corresponding to each product and transferred to the separating section by the moving table (second moving table), and the unseparating sheet is separated by the adsorbing mechanism at the separating section. Only the product is adsorbed and lowered to be separated from the trimming scraps and collected, and the trimming scraps that are separated and remain on the separation table are discharged by the conveying means.

The above description of the operation is for sequentially following one sheet with a product, but since the sheets with a product are sequentially adsorbed and supplied, before the new sheet with a product is supplied, it is already removed. The unseparated sheet is returned to the original position together with the blade stand by the moving table (second moving table) that sucks the unseparated sheet after trimming cut by the suction mechanism corresponding to each product.

Further, while the trimming cutting is being performed by the punching blade in the cutting press section, the unseparated sheet in the separating section is separated from the trimming waste by the moving table (first section) corresponding to each product. This can be done by lowering the suction mechanism of the two moving tables). In this way, the transfer timing by the moving table is when the punching table is in the original position, and while the punching table is transporting the sheet with product to the cutting press section, it is moved by the moving table (second moving table). Since the product and the trimming waste are separated from the unseparated sheet, the timing loss can be reduced as a whole.

In particular, in the case where the trimming cutting by the punching blade in the cutting press section is performed in a shape such that the trimming scraps are connected at least in the vertical and horizontal directions between the outer peripheral portion of the sheet and the product as in claim 3. Has the advantage that so-called star dust cannot be generated between the four products, and the star dust separation is unnecessary. Further, according to the trimming device of claims 4 and 5, the transfer table for transferring the trimming-cut unseparated sheet from the punching table has an adsorption mechanism corresponding to each product, and each unseparated sheet product is Since the product is adsorbed and transferred to the separating unit, and the adsorbing mechanism can be lowered in the adsorbed state, the device can be accurately separated from the trimming waste, and the trimming work can be ensured.

When the first and second moving bases are used as in the fifth aspect, both are connected so that they can be moved simultaneously as in the sixth aspect, and only the suction mechanism is separately provided. If it is possible to move up and down, the sheet with product and the unseparated sheet will be transferred at the same time, it will be easy to operate, and each sheet can be adsorbed and released individually,
This makes it easier to select the suction timing.

Further, in the apparatus, if the clamp portion is constituted by a combination of rollers as in claim 7, it is easy to cope with conveyance for discharging trimming scraps, and the clamp frame does not interfere with conveyance. Will be things. Further, if the roll type conveying means for discharging the trimming waste is set as in claim 8, the trimming waste can be easily assembled in the vicinity of the separating portion and can be easily linked with the clamp frame. The discharge action of can be performed smoothly.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. In the case of FIGS. 1 and 2, the molded product-attached sheet S is manually supplied to the punching table, and in the case of FIGS. 3 to 5, the product-added sheet S is moved to be automated. This is a case where the base is additionally used, and therefore, the latter case will be described for convenience. 6 and the following are common examples.

First, FIG. 3 is a plan view showing the arrangement of each part of the apparatus. A is a supply unit on which sheets S with products after sheet forming are stacked, and B is a Thomson to which sheets S with products are sequentially supplied. The cutter blade part by the blade, C is a cutting press part for moving the cutter table to perform trimming cutting, and D is a separating part to which unseparated sheets S ′ after trimming cutting are sequentially supplied.

FIG. 4 is a front view of the apparatus, in which 10 is a first movable table and 20 is a second movable table, both of which can be horizontally moved along a guide 60 in the upper machine casing. ,
In the case of the figure, the first movable table 10 and the second movable table 20 are connected to each other so that they can move laterally at the same time. FIG. 5 shows a state in which the first moving table 10 and the second moving table 20 are laterally moved from FIG.

Then, the first moving table 10 has a suction mechanism 11 capable of vacuum-sucking the important points of the sheet S with product from the supply section A.
Is provided so that it can be moved up and down by the cylinder mechanism 12, and the second
The moving table 20 is provided with a suction mechanism 21 capable of vacuum suction of the trimming-cut unseparated sheet S ′ in the punching blade base B for each product so that the cylinder mechanism 22 can move the suction mechanism 21 up and down. The moving table 10 is provided so as to reciprocate between the supply section A and the cutting blade section B, and the second moving table 20 is provided so as to reciprocate between the cutting blade section B and the separating section D. Further, the cutting blade base 30 that receives the product-equipped sheet S from the first moving base 10 is provided so as to be able to reciprocate between the cutting press portion C and the cutting blade base portion B, which are located behind when viewed from the front, and cut. The sheet S with the product on the punching stand 30 is lifted by the cylinder mechanism 31 of the punching stand 30 and clamped between the blade receiving board 40 (see FIG. 6) above the press section C to pinch the punching stand 30. Trimming and cutting is performed with the punching blade of No. 1, and after cutting, the original position of the punching blade base B is returned. As the unseparated sheet S ′ after the trimming and cutting, there is a part (not shown) which is in a state where it is not separated for each product unless the separation work is actively performed even after the cutting or a part (not shown). Say what you have left. It is preferable that the blade receiving plate 40 be temporarily capable of vacuum suction of the product-equipped sheet S.

Next, in the separation section D, a separation table using vertical and horizontal partition partition plates corresponding to the number of product sections that receive the unseparated sheet S'fed from the punching blade section B at the second moving table 20. 5
It has 0 and the clamp frame 51 which exists around it and can move up and down. The clamp frame 51 has two or more rollers 52 that are positionally fixed on the inner sides of both sides, and a roller 53 that can rotate the support portion 54 so as to be capable of contacting and separating from the rollers 52.

Then, the unseparated sheet S'which has been fed to the separating section D by the second moving table 20 is received by the separating table 50, and both sides of the sheet are clamped by the rollers 52 and 53. Then, the product a can be separated into individual products by downward pushing of the suction mechanism 21 of the second moving table 20.
The trimming waste b after the product separation is conveyed by being sandwiched between a conveyance roll 55 that is passed on the trailing side of the clamp frame 51 in the sheet width direction and a roll 56 that descends from above the clamp frame 51. It can be discharged. At this time, the clamp frame 51 can be momentarily moved slightly upward so that the trimming waste is not caught on the separation table 50.

Incidentally, FIGS. 9 (1) and 9 (2) show an example of the unseparated sheet S ', and although some unseparated portions are omitted in the drawing, the unseparated sheet S'is formed by the cutting blade in the cut press portion. The trimming cut is preferably performed in such a shape that the trimming scraps are connected at least in one of the vertical and horizontal directions between the outer peripheral portion of the sheet and the product (the horizontal direction in the plane that is the longitudinal direction in the figure). If the star scraps are generated between the products without connecting them, it is necessary to remove the star scraps at the cut press part as described later.
However, as described above, when the trimming scraps are connected not only to the peripheral portion but also to at least one of the vertical and horizontal sides between the products, the work of removing the star scraps becomes unnecessary, which is a preferred embodiment. A method of trimming using the above apparatus will be specifically described in order. Of the stacked sheets S with product formed in the supply unit A, the uppermost sheet is adsorbed by the adsorption mechanism 11 of the first moving table 10 and laterally moved to the extraction blade table B to extract the blade table. Transfer to 30. The transferred product-equipped sheet S is transferred to the cut press section C by the movement of the punching blade base 30 (see FIG. 6), and is clamped between the punching blade base 30 and the blade receiving platen 31 which are raised by the cylinder mechanism 31. Trimming cutting is performed by the punching blade, and the unseparated sheet S ′ after the trimming cutting is returned to the original punching blade base B by the punching blade base.

The unseparated sheet S'after the trimming cut on the punching table is adsorbed by the adsorption mechanism 21 of the second moving table 20 corresponding to each product (see FIG. 5) and transferred to the separating section. , The unseparated sheet S ′ received by the separation table in the separation section
After both sides are clamped by the roll 55 of the clamp frame and the rotary type roll 56, the suction mechanism 21 sucking each product is pushed down (see FIG. 7) to separate each product and load the lower stack. Load it on the table. Then, leaving only the trimming waste b, the trimming waste is lifted by the clamp frame 51 to an upper position where it is not caught by the separation table, and the clamp for the trimming waste b is released and the roll 55 is used.
The trimming scrap b is discharged from between the roll 56 and the roll 56 (see FIG. 8).

The above-described trimming explanation is for sequentially driving one sheet with a product as the apparatus is driven. However, since the sheet with a product is sequentially sucked and transferred, a new sheet with a product is first moved. While transferring on the stand 10, the second
The moving table 20 adsorbs the unseparated sheet S ′ after trimming cutting from the punching table 30 (see FIG. 4) and transfers it to the separating section.
Then, the unseparated sheet S ′ is the suction mechanism 21 of the second moving table 20.
At the conveyor 100, the product a is separated from the trimming waste b, and the product a is recovered (see FIG. 7).
Will be discharged in.

The recovered products are loaded on a product recovery table 70 below the separation table 50, and the product recovery table 70 is gradually lowered by a cylinder mechanism 71 or the like according to the loading. When the required loading amount is reached, the product is discharged to the conveyor 90 in the front by the extrusion discharge plate 80 located at the back, but instead of the product collecting stand 70, a belt conveyor is provided or it is stationary. Alternatively, the sheets may be sequentially loaded on the belt conveyor, and when a predetermined amount is reached, the belt conveyor may be operated to transfer to the wrapping unit for automatic wrapping.

Further, the product-attached sheet supplying section A may be connected so that a predetermined load amount is automatically supplied from the molding line. In the above description, the product-added sheet S is automatically supplied by the first moving table 10, but the product-added sheet S is manually supplied without using the first moving table 10. The case is illustrated in FIGS. 1 and 2, and in this case, there is no change in the apparatus except that the first moving table 10 is omitted, and the second moving table is moved according to claims 1 and 4. This is the case when it is used as a stand.

That is, the worker M manually pulls out the sheet S with the product from the supply section A on which the sheet S with the product is stacked.
The other operations are exactly the same as described above. That is, the trimming cut transferred to the cutting press section C by the punching blade base 30 or the unseparated sheet after the trimming cutting is returned to the original position by the punching blade base 30 and then the moving base 20 (the second moving base) is moved. The same is done for the adsorption of each product by) and the separation of each product from the trimming scraps after adsorption transfer.

It should be noted that a sheet with a product formed such that a star scrap d is formed between four products, that is, as shown in FIG. 10, a trimming scrap b does not occur in any of the vertical and horizontal directions of the product a. For the product with star dust d between the four products a, there is an unseparated sheet S ′ after trimming cut on the punching table 30, and the product is mounted on the moving table 20 (second moving table). In the state of stable and stable adsorption (before moving to the separation section D)
It is preferable to remove the star scraps d by dropping the scrap scraping member 25 for the star scraps d to the star scrap position.

In FIG. 11, a scrap scraping member 25 is added to the star scrap d, and the scrap scraping member 25 is lowered to drop the star scrap d from the gap 33 of the Thomson blade 35 through the hole 34 of the cutter table 30. FIG. 10 shows a device which can be removed by operating the scraper 25.
5'and the suction position 21 'by the suction mechanism 21 for each product a are shown.

[0028]

As described above, according to the trimming method of the present invention, the trimming scraps and the product can be separated very reliably, and the transfer of each sheet is stabilized to improve the efficiency of the trimming work. You can Then, as the device of the present invention used for implementation, a transfer table capable of adsorbing the unseparated sheet after the trimming cut from the punching blade table is used to reliably transfer the unseparated sheet after the trimming cut,
Product separation from trimming scraps can be performed reasonably and accurately by the suction mechanism corresponding to each product, which is very useful for implementing the trimming method of the present invention.

[Brief description of drawings]

FIG. 1 is a plan view showing the arrangement of each part of the apparatus.

FIG. 2 is a front view of the device.

FIG. 3 is a layout plan view of each part of the apparatus including a moving base for supplying sheets with products.

FIG. 4 is a front view of the device of FIG.

FIG. 5 is a front view of the first and second moving bases moved to the next step.

FIG. 6 is a cross-sectional view of a cut press part.

FIG. 7 is a side cross-sectional view at the time of product separation in the separation unit.

FIG. 8 is a front view when the clamp frame is raised when trimming scraps are discharged.

FIG. 9 (1) is a plan view of a part of an unseparated sheet.
(2) is a partial sectional view.

FIG. 10 (1) is a partial plan view showing another example of the product-equipped sheet. (2) is a perspective view showing a part of the extraction blade base.
(3) shows the part that removes star dust.III-I of (2) above
It is a II 'sectional view.

FIG. 11 is a front view of an apparatus provided with a scraping member for star scraps.

[Explanation of symbols]

 A supply unit B cutting blade unit C cutting press unit D separating unit 10 first moving table 11 suction mechanism 20 moving table (second moving table) 21 suction mechanism 25 scraping member 30 cutting blade table 40 blade receiving plate 50 Separation table 51 Clamp frame 52, 53 Roller 55, 56 Roll 70 Product recovery table

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[Procedure amendment]

[Submission date] June 3, 1994

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Name of item to be corrected] Fig. 10

[Correction method] Change

[Correction content]

[Figure 10]

Claims (8)

[Claims] 1. A sheet with a product after sheet forming is supplied and set to a cutting blade base, and the set sheet with a product is transferred to a cutting press section by the cutting blade base and trimmed and cut by the cutting blade to perform trimming. The unseparated sheet after cutting is returned to the original position by the cutting blade table, and the unseparated sheet after trimming cutting on the cutting blade table is sucked by the suction mechanism corresponding to each product and moved to the separation unit. It is characterized in that in the separating section, only the product is sucked down by the suction mechanism of the moving table while being sucked, separated from the trimming waste and collected, and the separated trimming waste is discharged by the conveying means. Trimming method for synthetic resin moldings. 2. A sheet with product after sheet forming is adsorbed by an adsorbing mechanism and transferred to a punching table by a first moving table,
The unseparated sheet after trimming cut on the punching blade is sucked by the suction mechanism corresponding to each product, transferred to the separating section by the second moving table, and then transferred to the preceding cutting blade table. The attached sheet is transferred to the cutting press section by the punching blade, trimming is cut by the punching blade, and the unseparated sheet after the trimming cutting is returned to the original position by the punching blade.
The unseparated sheet in the separation section during the trimming cut is lowered by the suction mechanism of the second moving table while only adsorbing the product and separated from the trimming waste to be collected, and the separated trimming waste is separated. Is a method for trimming a synthetic resin molded product, characterized in that it is discharged by a conveying means. 3. The trimming cut by the punching blade in the cutting press section is performed in such a shape that the trimming scraps are connected in at least one of the longitudinal and lateral directions between the outer peripheral portion of the sheet and the product. 2. The method for trimming a synthetic resin molded article according to 2. 4. A cutting blade unit capable of receiving and transferring a sheet with a product, a cutting press unit having a blade receiving plate for trimming and cutting the sheet with a product transferred by the cutting blade table together with the cutting blade unit, and after trimming and cutting Of the unseparated sheet of the product can be adsorbed by the adsorption mechanism corresponding to each product and transferred, a separation table that receives the unseparated sheet transferred by the transfer table, a clamp frame around the unseparated sheet, and unclamping The moving table is configured to discharge the trimming scraps later, and the moving table can separate the unseparated sheet transferred to the separating unit from the trimming scraps by adsorbing only the product by the suction mechanism. A trimming device for a synthetic resin molded product characterized by the above. 5. A first moving table capable of adsorbing and transferring the product-formed sheet by a suction mechanism by a suction mechanism, and a cutting blade table capable of receiving and transferring the product-added sheet transferred from the first moving table. , A cutting press unit with a blade receiving plate that trims and cuts the product-equipped sheet transferred by the punching blade stand together with the punching blade stand, and the unseparated sheet after trimming cut is sucked and transferred by the suction mechanism corresponding to each product It has a movable second movable table, a separation table for receiving the unseparated sheet transferred by the second movable table, a clamp frame for the periphery of the unseparated sheet, and a conveyance means for discharging trimming waste after releasing the clamp. The second moving table is configured to lower the unseparated sheet transferred to the separating unit while adsorbing only the product by the adsorbing mechanism so as to be separated from the trimming waste. Trimming device for oil molded products. 6. A first moving table and a second moving table are connected so that they can be transferred at the same time, and each suction mechanism is provided so as to be movable up and down by a cylinder mechanism provided in each. The trimming device for a synthetic resin molded article according to claim 5. 7. The clamp frame is composed of a plurality of rollers provided inside a frame which is provided outside the separation table and can move up and down, and a roller which can be brought into contact with and separated from the rollers. Item 4. A trimming device for a synthetic resin molded article according to item 4 or 5. 8. A conveying means for discharging trimming waste is a roll provided over a width of an unseparated sheet in a part of a vertically movable frame provided outside a separation table, and is in contact with the roll. The trimming device for a synthetic resin molded product according to claim 4 or 5, wherein the trimming device is of a roll type in which a roll that can be moved up and down freely is combined.