JPH0549322U - Product take-out device in synthetic resin molding machine - Google Patents

Abstract

(57) [Abstract] [Purpose] After the molding is finished, the upper mold is opened, and the cup-shaped product 10 made of a soft synthetic resin and having one end opening is attached to the core 12 so as to project forward, and the above-mentioned cup of the core is formed. In a molding machine in which air is ejected from the portion in contact with the bottom of the shaped product to demold the product, it is possible to take out the products by a machine and move them one by one to a desired position for automation. Achieve labor saving and improve productivity. [Structure] A fluid cylinder 20 in a horizontal direction is provided rotatably around a horizontal axis in a direction in which air is ejected from a core, and the tip of a piston rod 21 can be adsorbed to the outside of a bottom surface of a product 10 via a shock absorber. A suction pad 25 and a cup-shaped cover 23 that can loosely cover the product are concentrically attached.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a product take-out device for automatically taking out a cup-shaped product made of a soft synthetic resin from a molding machine after molding a cup-shaped product made of a soft synthetic resin.

[0002]

[Prior Art]

 As a device for molding a cup-shaped product made of soft synthetic resin with one end opening, it consists of an upper mold, a lower mold and a core arranged side by side, and after injecting the above-mentioned cup-shaped product into the mold and cooling, With the cup-shaped product open to the side and projecting to the front of the lower mold with the cup-shaped product attached to the core, air is jetted from the part of the core that contacts the bottom of the cup-shaped product to release the product from the mold. However, it is known that the air blown product is received by a bag-shaped jig that is supported by the hand.

[0003]

[Problems to be solved by the device]

 Conventionally, a cup-shaped molded product blown off by air pressure from one end of the core was received by a bag-shaped jig that was supported by the operator's hand, so an operator was needed to support this jig. In addition, in order to transfer the above products to the next process, it is necessary to take out the above products one by one from the bag-shaped jig, which hinders automation and labor saving and reduces productivity. It was

The present invention provides a take-out device capable of taking out the above cup-shaped molded products by a machine without manual work and moving them one by one to a desired position. It will achieve automation and labor saving and improve productivity.

[0005]

[Means for Solving the Problems]

 The product take-out device of the present invention has an upper mold, a lower mold and a core, molds a cup-shaped product made of a soft synthetic resin and has one end opening, and after opening the upper mold, the cup-shaped product In the synthetic resin molding machine in which the product is removed from the mold by projecting it to the front of the lower mold in a state where it is attached to the bottom mold and injecting air from the part of the core that contacts the bottom of the cup-shaped product. A fluid cylinder that is horizontal in the direction of air injection is provided rotatably around a horizontal axis, and the tip of its piston rod is a suction pad that can be adsorbed to the outside of the bottom surface of the cup-shaped product via a shock absorber, and the cup-shaped product. It is characterized in that cup-shaped covers that can be loosely attached to each other are attached concentrically with each other.

[0006]

[Action]

 When the upper mold is opened and the core coated with the cup-shaped molded product protrudes from the lower mold, the piston rod of the fluid cylinder that is oriented in the horizontal direction is protruded so that the cup-shaped cover at the tip is located above the core. Cover the product and put the suction pad in the cover on the bottom of the product. Next, when suction of the suction pad is started and pressurized air is blown into the product from the core, the product is demolded. In this case, the shock caused by the jet of air is mitigated by the shock absorber described above, and the product shake is suppressed by the above-mentioned cover, and the product is prevented from falling off. Then, the pistol rod of the fluid cylinder is retracted, the fluid cylinder is subsequently rotated to direct the cover downward, and the suction of the suction pad is released to release the product. The fluid cylinder can be swung in the horizontal direction to widen the product discharge range.

[0007]

【Example】

 In FIG. 1, 11 is a lower die of a molding machine, 12 is a truncated cone-shaped core, and in this embodiment, two cores 12 are provided in parallel vertically. The two cores 12 are fixed to the front surface of the sliding base 13 that can project from the lower mold 11 forward (front side of the drawing) via the arm 14, and the smaller diameter side is lateral (left in the figure). Is directed to. An air passage 15 is provided in the sliding base 13, the arm 14 and the core 12, one end of which opens at the tip of the core 12 and the other end of which serves as an air compressor (not shown). It is connected. Reference numeral 10 denotes a molded cup-shaped molded product 10 with one end opening, which is attached to the core 12.

A fluid cylinder 20 which is swingable up and down about a horizontal axis P as a fulcrum is provided on the side of the lower mold 11 (on the small diameter side of the core 12 in the protruding state), and a support plate is provided at the tip of a piston rod 21 thereof. 22 is fixed, and two cup-shaped covers 23, 23 corresponding to the two cores 12, 12 are fixed in parallel on the front side in the vertical direction.

As shown in FIG. 2, at the bottom of the cup-shaped cover 23, a cylindrical case 24 penetrating the bottom and the support plate 22 is provided, and the opening is located at the opening side of the cup-shaped cover 23. Fixed towards. Then, the shaft portion 26 of the suction cup 25 is inserted into the tubular case 24, the tip thereof penetrates through the bottom portion of the tubular case 24 and projects, and the lock nut 27 is fixed to the projecting end to form a stopper. .. Then, a compression coil spring 28 is mounted between the stepped portion formed on the shaft portion 26 and the bottom of the tubular case 24 to form a shock absorber 29. A vent hole 30 is formed in the shaft portion 26 of the suction cup 25 so that one end communicates with the open end of the suction cup 25 and the other end is connected to a vacuum pump (not shown). Note that, in FIG. 2, a cone-shaped bellows is shown as the cup-shaped molded product 10.

In the above structure, when the molding by the molding machine is completed, the upper mold is opened and the core 12 projects from the lower mold 11, the cup-shaped cover 23 at the standby position shown by the solid line in FIG. It is extruded toward 11 (see the chain line), the cover 23 covers the product 10 on the core 12, and the suction pad 25 contacts the bottom of the product 10. Next, the vacuum pump connected to the suction pad 25 is driven, while high-pressure air is sent to the air passage 15 of the lower mold 11 to be ejected from the tip of the core 12, so that the product 10 is separated from the core. The shock at that time is alleviated by the shock absorber 29, the vibration of the product 10 is suppressed by the cover 23, and the product 10 is suction-held by the suction pad 25. Then, by returning the cover 23 to the standby position, rotating it downward, and stopping the vacuum pump, the product 10 is released from the suction pad 25.

[0011]

[Effect of the device]

 In this invention, a fluid cylinder is vertically swingable in the direction in which air is ejected from a core protruding forward of a lower mold, and the tip of its piston rod is attached to the outside of the bottom surface of the cup-shaped product via a shock absorber. Since a suction pad that can be used and a cup-shaped cover that can be loosely placed on the cup-shaped product are concentrically attached to each other, the shock caused by the air jet is shocked when the product is demolded. The product is safely absorbed by the absorber, the product shake is suppressed by the above cover, the product is released from the mold safely, and the product above is moved to the desired position by setting the stroke and rotation angle of the fluid cylinder. You can take it down. Therefore, the demolding work of the above products can be automated and labor can be saved, and the productivity is improved.

[Brief description of drawings]

FIG. 1 is a side view of an embodiment of the present invention.

FIG. 2 is a vertical sectional view of a cup-shaped cover.

[Explanation of symbols]

10: cup-shaped molded product, 11: lower mold, 12: core,
13: sliding base, 15: air passage, 20: fluid cylinder, 21: piston rod, 23: cup-shaped cover, 2
5: Suction cup, 29: Shock absorber, 30: Vent hole

Claims (1)

[Scope of utility model registration request] 1. A cup-shaped product, which has an upper mold, a lower mold and a core and is made of a soft synthetic resin and has one end opening, is molded, the upper mold is opened, and then the cup-shaped product is attached to the core. In a synthetic resin molding machine in which the product is released from the mold by projecting it forward of the lower mold and injecting air from the portion of the core that contacts the bottom of the cup-shaped product, The fluid cylinder of is rotatably provided around the horizontal axis,
A suction pad that can be attached to the outside of the bottom surface of the cup-shaped product via a shock absorber at the tip of the piston rod,
Also, a product take-out device in a synthetic resin molding machine, wherein cup-shaped covers that can be loosely placed on the cup-shaped products are concentrically attached to each other.