JPH04185311A - Processing device of resin molded product - Google Patents

Abstract

PURPOSE:To enable continuous and efficient processing even if works are different in their forms and dimensions, by a method wherein processing tools corresponding to molded products each are provided and a plurality of turning surfaces having a jig holder housing a work holding jig holding its molded product in a free taking-out state is formed, through which the turning surfaces each are constituted so that they correspond freely with processing positions. CONSTITUTION:The title device is provided with processing tools 15-18 corresponding to a molded product 2 and a turning surface 14 possessing jig holders 23-26 housing work holding jigs 19-22 holding the molded product 2 in a free taking-out state is allowed to correspond to a processing position 7. Then the work holding jigs 19-22 are held by a conveying device 3, the molded product 2 after mold break is taken out, carried into the processing position 7 and the outside is processed by the processing tools 15-18. When the works (molded products) 2, which are different in forms and dimensions, are processed, the turning surfaces 14 each corresponding to the processing device 6 are allowed to correspond to the processing position 7 on all such occasions. With this construction, the outsides of various works 2 can be processed continuously and efficiently by necessitating hardly labor and a time for a change of arrangement between different kinds of works.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a processing device for resin molded products, and more particularly, to a processing device for resin molded products that can sequentially and efficiently process the outer surfaces of various types of workpieces. It is something.

[Conventional technology]

External surface processing of resin molded products molded by blow molding or the like includes, for example, a so-called firming operation to remove burrs generated at the parting line.

This is usually done with a firming machine installed separately from the molding equipment, and as described in Japanese Patent Application Laid-Open No. 53-66962, other operations such as cutting are generally performed. It is performed in the process before the mold is opened, that is, immediately after the mold is opened.

For example, containers such as gasoline tanks for automobiles are often formed by blow molding, but in order to improve work efficiency, the molded product is removed after opening the mold using a conveyor such as a robot. It is common to transport the material to the processing position of a deburring machine and perform deburring work. In such cases, in order to take out the molded product from the mold, the workpiece gripping jig attached to the conveyance means and the processing tool attached to the deburring machine must be adapted to suit each molded product when the shape and dimensions of the molded product are different. It had been replaced with

[Problem to be solved by the invention]

As mentioned above, conventionally, when processing multiple types of molded products with different shapes and dimensions, a relatively large space is required to separately store multiple workpiece gripping jigs and processing tools. There was a problem in that it required a lot of effort and time for so-called set-up changes. Therefore, the layout of the factory was restricted and the cost of molded products was 1.

The present invention has been made in consideration of these circumstances, and an object of the present invention is to provide a processing apparatus for resin molded products that can save space and process the outer surfaces of various types of workpieces efficiently and at low cost.

[Failure to solve the problem]

The present invention relates to a processing apparatus for a resin molded product, which takes out the molded product from the mold by a conveying means after the mold is opened, transports it to a processing position, and processes the outer surface of the molded product by the processing means. In order to solve the problem, the above-mentioned processing means is equipped with a plurality of turning tools that are equipped with processing tools corresponding to each molded product and have a jig holder that releasably stores a workpiece gripping jig that grips the molded product. Each turning surface is configured to correspond to the processing position described above.

[Function] After the turning surface, which is equipped with a processing tool corresponding to the molded product and has a jig holder in which a workpiece gripping jig for gripping the molded product is removably housed, corresponds to the processing position, it is transported. A means is made to grip the workpiece gripping jig, and the molded product after opening the mold is taken out by the workpiece gripping jig, carried into a processing position, and its outer surface is processed with a processing tool.

When machining a different type of molded product, after returning the previous workpiece gripping jig to the jig holder and storing it, align the new turning surface of the machining means to the machining position, and similarly place the workpiece gripping jig on the jig holder. The stored corresponding workpiece gripping jig is gripped by the transport means, and the molded product after opening the mold is taken out by the workpiece gripping jig and transported to the processing position, and its outer surface can be processed with the corresponding processing tool. can. In this way, it is possible to handle workpieces (molded products) with different shapes and dimensions by matching each turning surface of the processing means to the processing position each time, reducing the time and effort required to change setups between different types of workpieces. The outer surfaces of various types of workpieces can be machined continuously and efficiently with little or no time required.

In addition, multiple processing tools are attached to each turning surface of the processing means, and workpiece gripping jigs are stored in jig holders on each turning surface, so unlike conventional methods, multiple processing tools and workpiece gripping jigs are required. It is also possible to save space by not requiring a separate space to store the ingredients.

〔Effect of the invention〕

The processing apparatus for resin molded products of the present invention is equipped with processing tools corresponding to each molded product, and has a plurality of jig holders that store workpiece gripping jigs for taking out the molded products from the mold after opening the mold. The turning surface of the machine is configured so that it can be adjusted to any machining position, making it possible to continuously and efficiently process workpieces of different shapes and dimensions without requiring much effort or time to change setups. It is possible to reduce processing costs. Further, space for storing multiple processing tools and workpiece gripping jigs is not required, and space can be saved.

〔Example] The present invention will be explained in detail below based on examples.

The processing equipment for resin molded products shown in this example is designed to be able to continuously and efficiently remove any burrs that occur on the bartending line after molding for multiple types of workpieces, and also to save space. It is structured as follows.

As shown in FIGS. 5 and 6, which show the overall configuration of the device, a resin molded product (work) 2 that is molded by blow molding by a molding device 1 is moved to one side by a robot (transporting means) 3 after the mold is opened. It is taken out from the mold 5 and conveyed to a processing position 7 of a firming machine (processing means) 6, where the firmness 8 (see FIG. 1) generated at the parting line is removed.

As shown in FIG. 1, four turning surfaces 11 to 14 are formed in the firming machine 6, and each turning surface 11 to 14 has a
Harnessing momme (processing tools) 15 to 18 corresponding to workpieces 2 having different shapes and dimensions are attached, and workpiece gripping jigs 19 to 2 for gripping the workpieces 2 are attached.
Jig holders 23 to 26 for removably storing 2 are provided, and each of the turning surfaces 11 to 14 can correspond to the processing position 7. With such a configuration, each turning surface (11 to 14) equipped with a sharpening blade (15 to 18) corresponding to each workpiece 2 is turned to the processing position 7 each time,
The jig holder (23-26) of the turning surface (11-14)
), the robot 3 grips the workpiece gripping jigs (19 to 22) stored in the molds, and thereby the workpiece after mold opening is taken out from one of the molds 5 (see Fig. 5) and transported to the processing position 7. It is possible to perform deburring work.

In other words, the corresponding turning surface (11 to 14) of the deburring machine 6
By simply rotating the machine to the processing position 7, it is possible to handle a plurality of types of workpieces 2 having different shapes and dimensions. In addition, by providing such a sharpening machine 6, space can be saved without requiring a separate space for storing a sharpening knife and a work gripping jig as in the conventional case.

To explain in detail, the molding apparatus 1 (see FIGS. 5 and 6) has a pair of molds 4.5 that are moved toward and away from each other, and each of the molds 4.5 is fixed inside a platen 29-30. Each platen 29.30 has a pair of rails 1 at its bottom.
0.10, while its upper part is suspended and guided by a pair of tie bars 27.
32, and after the mold is closed (not shown) and blow molding is performed, the workpiece 2 can be taken out from one of the molds 5 by the robot 3 in the open state shown in the diagram. .

The drive mechanisms 31 and 32 each include three air cylinders, and a pair of drive bases 34 and 3 erected on the bit 33.
5, each cylinder rod 36, 37
．． 38, 39, 40° 41 are respectively connected to the back of both platens 29.30, and both platens 29.3
Both ends of the tie bars 27, 28 guiding the 0 are supported on the top of the drive heirs 34, 35. A de-sticking machine 6 is arranged near one of the drive hesses 35 of the molding device 1, and a robot 3 is arranged at a position that can correspond to the de-sticking machine 6 and one of the molds 5 when the mold is opened. There is.

The robot 3 is of a ceiling-suspended type, and is movably suspended from a guide rail 45 supported by a pin 33 and pillars 43 and 44 erected on a floor 42. Interference with a mold changing cart 48 which travels on a track 47 on a molding device 46 and moves back and forth with respect to the molding apparatus l can be avoided. On the other hand, the workpiece 2 on which the tensioning work has been completed by the tensioning machine 6 is placed on a carrying-out container 49 and carried out to a next station (not shown).

As shown in FIG. 1, the deburring machine 6 is erected and fixed by fastening bolts and nuts on a pedestal 52, which is installed so that its base 51 straddles the base 46 and floor 42 of the pit 33 (see FIG. 6). A rotation shaft 53 is rotatably supported on the base 51 in a horizontal plane and is rotated by a motor (not shown) built in the base 51.

The rotating shaft 53 has a pair of tension removers on the upper and lower sides.
Two square-shaped turns with a, 15b-18a, and 18b (18b not shown) attached! 55 and 56 are fixed vertically, and four round bars 59 to 62, which are jig holders 23 to 26, are attached in a cross-radial pattern between both turning boxes 55 and 56. That is, the double turning boxes 55 and 56 are
Each of the round bars 59 to 62 has four side surfaces 63 to 66 and 67 to 70, and each round bar 59 to 62 is arranged at a central portion between each side surface 63.67 to 66.70 corresponding to the top and bottom of the four sides. It constitutes the plane If~14.

To be more specific, on both upper sides of each of the upper side surfaces 63 to 66 and on both lower sides of each of the lower side surfaces 67 to 70, there is a deburring ff15.
A, 15b to 18a, 18b are provided with a pair of protruding driving portions 71 and 72 for driving the driving portions 71 and 18b.
．． Each sharpening blade 15a, 15b to 18a is provided on the outside of 72,
The bases of arms 73 and 74 supporting both sides of 18b are pivotally supported.

Then, each upper tension remover'y115a to 18
a is rotated downward from the illustrated position about the base of each arm 73, 74, and each of the lower harpering knives 15b to 18b is rotated upward. That arm 73
．． The base of 74 is fixed by bolt tightening to a drive shaft (not shown) protruding outward from each drive part 71. -18a and 18b are each replaceable. A pair of workpiece receivers 75 and 76 made of a hard rubber body are attached to both lower sides of each side surface 63 to 66 of the upper turning box 55 and to both upper sides of each side surface 67 to 70 of the lower turning box 56. As shown in the figure, both upper and lower sides of the main body of the work 2, which has a firmness of 8.8 in the upper and lower sides, can be supported from inside. With this configuration, the work 2 that is gripped by the robot 3 and stably supported by each work receiver 75, 76 is deburred, and the parts 15a and 15b are moved downward and upward in an arc. From this point, the upper and lower ribs 8, 8 can be cut from their roots.

On the other hand, each round bar 59 to form the jig holders 23 to 26
The tip of 62 is 63.67 on each side of 55.56
A collet chuck 85 is located at a position of ~66.70, and has a fitting hole 78 at its tip for engaging and clamping the engaging pin 77 (see FIG. 3) of the workpiece gripping jigs 19 to 22. is attached, and a guide plate 79 is fixed horizontally at the bottom of the guide plate 79, and workpiece gripping jigs 19 to 2 are attached to the guide plate 79.
2 is stored (see Fig. 4), the horizontal bar 80 to which the retaining bin 77 is fixed can be stably received from below (see Fig. 3).

The workpiece gripping jigs 19 to 22 are so-called material handling devices that are attached to the arm 9 of the robot 3 to grip the workpiece 2, and as shown in FIG. spring 82 respectively.
It has a vacuum cup 83 that is resiliently supported by
This makes it possible to adsorb Waichi 2. A sharp-pointed engagement pin 84 to be clamped to the arm 9 of the robot 3 is mounted on the surface of the horizontal beam 80 extending across the center of the frame 8I, and a jig holder 23 is mounted on the back surface thereof.
-26, round rods 59-62 have round-headed locking pins 77 projectingly fixed thereto, which are engaged and clamped by collet chucks 85 (see FIG. 3) provided at the tips of the round bars 59-62. With such a configuration, the engagement bins 77 attached to the back surface of the mechanism 80 are clamped to the tips of the corresponding round bars 59 to 62 to store the workpiece gripping jigs 19 to 22 (the fourth
(See figure) On the other hand, when transporting the workpiece, the engagement bin 8 on the front side
4 is clamped to the arm 9 of the robot 3, four vacuum cups 83 are attracted to the surface of the work 20 after the mold is opened, and the vacuum cups 83 can be transported to the processing position 7 (see FIG. 5). Although not shown, the vacuum cutter 83 is attached to the arm 9 and connected to a vacuum pump, so that vacuum suction and vacuum release operations can be carried out.

A series of operations for removing firmness by the resin molded product processing apparatus configured as described above will be described below in order.

(]) Each drive unit 71 on each side surface 63.67 to 66.70 of the firmness removing machine 6 moves the firmness remover m15a, 15b to 18a, 18b corresponding to each workpiece 2 scheduled to be machined in advance.
．． 72, and the corresponding workpiece gripping jigs 19 to 22 are clamped to the tips of the round bars (59 to 62) (see FIG. 4).

(2) The turning surface 11 corresponding to the workpiece 2 to be processed is rotated to the processing position 7, and the corresponding workpiece gripping jig 19 is clamped to the arm 9 of the robot 3 (see FIG. 4).

(3) Move the arm 9 of the robot 3 to adsorb the workpiece 2 after opening the mold onto the workpiece gripping jig 19 (see the dashed line in FIG. 5), transport it to the processing position 7, and
The workpiece 2 is held in the upper and lower workpiece receivers 75.
76 (see Figure 1).

(4) Move the paring knives 15a and 15b downward and upward to cut off the burrs 8.8 on both the upper and lower sides of the workpiece 2 from the root.

(5) Move the arm 9 of the robot 3, remove the workpiece 2 from the workpiece receiver 75, 76, place it on the carry-out conveyor 49 (see Fig. 5) located below it, and check the vacuum state of the vacuum cup 83. Release it, release work 2, and carry it out to the next station.

(6) Next, when processing a workpiece 2 with a different shape and size, first move the previous workpiece gripping jig 19 back to the original round bar 5.
9 is clamped and stored, and the rotating shaft 53 is rotated to create a corresponding new turning surface (12 to 14) at the processing position 7.
The round bar (60~14) of the turning surface (12~14)
The workpiece gripping jig (2) is clamped at the tip of the workpiece gripping jig (2).
0 to 22) can be clamped to the arm 9 of the robot 3, and the firming work can be performed in the same manner.

Therefore, by sequentially rotating the corresponding turning surfaces (12 to 14) to the machining position 7, it is possible to deal with different types of workpieces 2, and to remove tension continuously and efficiently without requiring much effort and time for setup changes. Able to perform work.

As described above, according to the present invention, when a molded article is taken out from the mold by the conveying means after the mold is opened, the molded article is conveyed to the processing position, and the outer surface of the molded article is processed by the processing means, the processing means By forming a plurality of turning surfaces each equipped with a processing tool and having a jig holder for storing a workpiece gripping jig for gripping the molded product, each turning surface can be freely adapted to a processing position. As described above, the outer surfaces of various molded products can be processed efficiently. Furthermore, since each turning surface can be freely adapted to a processing position, such an apparatus can be formed compactly, and space can be saved.

In addition, in the embodiment, the firming machine 6 as a processing means has four
Although one turning surface 11 to 14 is formed, the number of turning surfaces is not limited to this and may be provided as many as required as necessary. In addition, the processing means is not specific to the deburring machine, but as long as it processes the outer surface of the molded product,
For example, it may be a means for performing other processing such as cutting, grinding, finishing, etc. Therefore, various tools for performing these processes can be employed as the processing tool.

Further, the jig holder is not limited to the one with a concave-convex stop as in the embodiment, but may have any other configuration such as holding, hanging, or shelf-standing. In short, it is only necessary that the turning surface having the processing tool and the jig holder be configured to correspond to the processing position.

Further, the conveyance means is not limited to a robot, and may be any other means operated by pneumatic pressure, hydraulic pressure, electric power, etc., as long as it can convey the molded product from the mold to the processing position. In addition, the workpiece gripping jig is not limited to a suction type material handling tool, but may be any tool that can be attached to a conveying means and capable of holding a molded product, or may be any other means such as gripping, clamping, engaging, or hanging. Well, it doesn't matter what its configuration is.

[Brief explanation of drawings]

The drawings show an embodiment of the resin molded product processing apparatus of the present invention, in which Fig. 1 is a perspective view of a firming machine which is a processing means, Fig. 2 is an enlarged perspective view of a workpiece gripping jig, and Fig. 3 is a perspective view of a workpiece gripping jig. FIG. 4 is a side view for explaining the storage operation of the workpiece gripping jig, FIG. 4 is a perspective view of the firming machine showing the workpiece gripping jig in a stored state, FIG. Figure 6 is its front view. 2-Resin molded product (molded product, workpiece), 3-transporting means (robot), 4.5-molding mold, 6-processing means (deburring machine), 7-processing position, 14-turning surface, 15.15a , 15
b, 16, 1.6a, 16b. 17.17a, 17b, 18.18a, 18b--Processing tool (harpering blade), 19, 20.21° 22-Work gripping jig, 23° 24, 25.26- Jig holder. Patent applicant Mazda Co., Ltd. Agent Patent attorney Katsutoshi Yoshimura (and one other person) Figure 2 Figure 3

Claims (1)

[Claims] (1) A processing device for a resin molded product, which takes out the molded product from the mold by a conveying means after the mold is opened, transports it to a processing position, and processes the outer surface of the molded product by the processing means, the processing device comprising: The means is provided with a plurality of turning surfaces each having a processing tool corresponding to each molded product and a jig holder for removably storing a work gripping jig for gripping the molded product. A processing device for resin molded products, characterized in that it can be freely adapted to the processing position described above.