JPS6121476Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a device for eliminating defective products, and more specifically, it is a molding device that automatically removes molded products from an injection molding machine and arranges them in a molded product storage box in an orderly manner, layer by layer, with intermediate paper interposed between them. The present invention relates to a defective product removal device that is provided with a mechanism for placing a defective product on an intermediate paper supply device and removing it when a defective product occurs in a product boxing device.

When taking out molded products molded by an injection molding machine using an automatic unloading machine and loading them into a storage box, safety is ensured by gradually lowering the loading section from the upper edge of the box. A method for packing molded products into boxes that can reliably load and store molded products was invented and filed (Japanese Patent Application No. 103398-1982).

In addition, the molded products are taken out from the injection molding machine into the storage box and arranged in an orderly manner in the storage box.The cylinder is driven by a high-speed operation cylinder that is quick and has a simple configuration, and is driven in the mold clamping direction with respect to the injection molding machine. In a robot that takes out molded products in a horizontal direction perpendicular to the molded product and transports them to the top of the molded product storage box, the molded product take-out head moves vertically and horizontally on the storage box, and the molded products are arranged in an orderly manner in the storage box. In order to
The X-axis cylinder for low-speed operation of the X-axis frame is connected to the Y-axis frame, and the Y-axis frame is provided on the X-axis frame so that it can move in parallel in the horizontal direction perpendicular to the mold clamping direction. The robot body is provided so that it can move in the direction of the Y-axis frame using a Y-axis cylinder, and the X-axis cylinder and Y-axis cylinder are connected to each other.
A boxing device for molded products has been proposed which is characterized by being equipped with XY numerical control.

The purpose of this invention is to use the above-mentioned molded product boxing device to interpose intermediate paper in each stage of the molded product storage box to orderly arrange multiple tiers of molded products. The device that takes out the intermediate paper sheets one by one and supplies them to the molded product storage box is equipped with a defective product removal mechanism, making it more efficient by combining the functions. The robot to be released is X, Y numerically controlled
The molded product storage box is placed on a shaft and Y-axis frame, waits on a conveyor installed along the injection molding machine, and is stored in an orderly array of molded products by a robot. The molded product mounting surface of the molded product storage box is arranged so as to descend at each level, and intermediate paper is supplied from above the arranged molded products each time the molded products in each stage are arranged. In an intermediate paper supply device having an intermediate paper transport head that moves between an intermediate paper storage box and a molded product storage box to transport the intermediate paper, an inclination actuator is provided on the upper surface of the intermediate paper transport head. A non-defective product receiving plate is provided, and in response to a defective product generation signal from the injection molding machine, the intermediate paper supply device moves over the molding storage box at any time to receive the molded defective products transported by the robot and stores the intermediate paper. To provide a defective product removal device, which returns to the top of the box and tilts a defective product receiving plate by operating an inclination actuator to cause the defective product to fall to the outside of the intermediate paper storage box. be.

Embodiments of this invention will be described in detail below with reference to the drawings.

10 is an injection molding machine, and 12 is a molded article molded by this.

Reference numeral 14 denotes a robot body, and a molded product take-out head 20 is provided at the tip of a molded product transfer arm 18 that moves forward and backward by an air cylinder 16.

The molded product transfer arm 18 is moved in parallel by a slide cylinder (not shown) so that the molded product take-out head 20 is attracted to the molded product 12, and while the molded product 12 is being attracted, the rack and pinion gear are moved. The used turning cylinder rotates the molded product take-out head 20 around the rotation shaft 22 so that it faces downward, and finally the molded product take-out head 20 is rotated 90 degrees by the rotating cylinder until it is horizontal. The molded product 12 faces downward.

24 is a Y-axis frame, and the robot body 14 is
It has a built-in Y-axis cylinder (not shown) that moves forward and backward in the axial direction (horizontal direction perpendicular to the mold-clamping direction).

Reference numeral 26 denotes a Y-axis frame, which is fixed horizontally to the side surface of the injection molding machine 10. An X-axis cylinder ( (not shown) is built-in.

Reference numerals 28a and 28b denote a carrying-in conveyor and a carrying-out conveyor for the storage box, on which the molded product storage box 30 conveyed is taken out by the molded product transfer arm 18, and the molded product take-out head 20 is rotated 90 degrees. It is provided directly below the molded product 12 facing downward.

The X-axis cylinder and the Y-axis cylinder are arranged so that the molded products 12 are sequentially and orderly arranged planarly into the molded product storage box 30 depending on the shape of the molded product 12 and the size of the molded product storage box 30 in the X and Y directions. is XY numerically controlled.

The air cylinder 16, slide cylinder, swing cylinder, and rotating cylinder that operate the molded product transfer arm 18 all operate at high speed, and the molded product is removed as quickly as possible to save time.

Here, the X-axis cylinder and Y-axis cylinder are
Both operate at low speed to improve positioning accuracy on the molded product storage box 30.

Reference numeral 32 denotes a rotating arm, which is provided with an intermediate paper conveying head 34 at its tip, which suctions the intermediate paper 37 raised at a constant pitch by an actuator from the intermediate paper storage box 36 and conveys it to the molded product storage box 30. , the molded products 12 are placed on top of one row, and the molded products 12 are arranged on top of this again.

FIG. 3 is an explanatory cross-sectional view of a molded product storage box 30 in a molded product packaging device. A lifting rod 38 is provided through the bottom surface of the molded product storage box 30 so as to be able to move up and down. The placed molded products are stacked in multiple stages with intermediate paper 37 interposed therebetween.
When the last molded product 12 of one stage is carried in, an optical sensor or the like set at that position issues a signal to lower the lifting rod 38 by the height of the next stage, and at the same time, the intermediate paper 37 is conveyed. The molded products 12 are placed on top of the arranged molded products 12, and the molded products 12 taken out again are conveyed and arranged.

By repeating the above operations, the same cycle is performed until the molded product storage box 30 is full.

Here, in the intermediate paper supply device which mainly includes the above-mentioned rotating arm 32 and intermediate paper transport head 34, as shown in FIG. The tilting actuator 42 enables tilting, and upon receiving a molded defect occurrence signal from the injection molding machine 10, the swing arm 32 swings to above the molded product storage box 30, and the molded product transfer arm 18 takes out the molded product. Waiting to receive defective molded products, the defective product receiving plate 4
0, the defective product is received on the intermediate paper storage box 36, the tilt cylinder 42 is operated to tilt the defective product receiving plate 40, and the defective product is transferred to a receiver provided near the outside of the intermediate paper storage box. A signal system is provided so that the liquid is input into a box (not shown).

The defective product removal device according to this invention can be made to function immediately by simply attaching a defective product receiving plate 40 and an inclination actuator 42 to the originally indispensable intermediate paper supply device and setting the sequence. It is effective in allowing new functions to be added at low cost.

Although the present invention has been variously explained above with reference to preferred embodiments, the present invention is not limited to these embodiments, and it goes without saying that many modifications can be made without departing from the refinement of the invention. That's true.

[Brief explanation of the drawing]

The drawings show an embodiment of this invention, and FIG. 1 is an explanatory diagram showing the arrangement of related devices centered on the molded product boxing device, and FIG. 2 is an illustration of the left side of the robot body 14 and the molded product transfer arm 18. 3 are explanatory cross-sectional views showing the state in which the molded product 12 is placed in the molded product packaging device. Moreover, FIG. 4 is a front explanatory view of the defective product removal device according to this invention. 10... Injection molding machine, 12... Molded product, 14...
...Robot body, 16...Air cylinder, 18...
... Molded product transfer arm, 20... Molded product take-out head, 22... Rotation axis, 24... Y-axis frame, 2
6...X-axis frame, 28a... Carrying conveyor,
28b... Carrying out conveyor, 30... Molded product storage box, 32... Swivel arm, 34... Intermediate paper conveyance head, 36... Intermediate paper storage box, 37... Intermediate paper,
38... Lifting rod, 40... Defective product receiving plate, 4
2...Inclination actuator.

Claims (1)

[Scope of utility model registration request] The robot that takes out the molded product from the injection molding machine, transports it, and releases it downward is controlled by X, Y numerically controlled X
The molded product storage box is placed on a shaft and Y-axis frame, waits on a conveyor installed along the injection molding machine, and is stored in an orderly array of molded products by a robot. The molded product mounting surface of the molded product storage box is arranged so as to descend at each level, and intermediate paper is supplied from above the arranged molded products each time the molded products in each stage are arranged. In an intermediate paper supply device having an intermediate paper transport head that moves between an intermediate paper storage box and a molded product storage box to transport the intermediate paper, an inclination actuator is provided on the upper surface of the intermediate paper transport head. A non-defective product receiving plate is provided, and in response to a defective product generation signal from the injection molding machine, the intermediate paper supply device moves over the molded product storage box at any time, receives the defective molded product transported by the robot, and supplies the intermediate paper. A defective product removal device characterized by returning to the top of the storage box and tilting a defective product receiving plate by operating an inclination actuator to cause the defective product to fall to the outside of the intermediate paper storage box.