KR20240028829A - Take-out robot for insert injection molding and method for forming insert injection molding using the same - Google Patents

Abstract

The present invention reduces the size and weight of the robot chuck by taking out the molded product and allowing it to fall automatically, downsizing the size of the robot equipment, improving space efficiency and minimizing equipment investment costs, and removing the mesh member of the filter from the outside. It relates to an insert injection molding take-out robot that has the function of improving process defects by accurately maintaining the process function of moving from inside the mold and repeating attachment and detachment during the insert process, and an insert injection molding method using the same.
The present invention includes a frame installed at the tip of an arm of a take-out robot; At least one adsorption member installed on one front side of the frame to adsorb the insert member and seat the insert member in the injection mold; A pair of take-out members is installed oppositely on the other front side of the frame to seat the molded product and take it out of the injection mold, wherein the adsorption member is an air cylinder equipped with a cylinder rod capable of moving forward and backward. with the device; A plurality of press members are installed around the air cylinder device to closely adhere to and pressurize one surface of the insert member so that the air cylinder device can stably adsorb and remove the insert member. Take-out for insert injection molding, including a Provides a robot.

Description

Take-out robot for insert injection molding and insert injection molding method using the same {TAKE-OUT ROBOT FOR INSERT INJECTION MOLDING AND METHOD FOR FORMING INSERT INJECTION MOLDING USING THE SAME}

The present invention relates to a take-out robot for insert injection molding and an insert injection molding method using the same. More specifically, the present invention relates to a take-out robot for insert injection molding and an insert injection molding method using the same. More specifically, the size of the robot equipment is reduced by taking out the molded product and allowing it to fall automatically, thereby reducing the size and weight of the robot chuck. Sizing improves space efficiency and minimizes equipment investment costs, and improves process defects by accurately maintaining the process function of repeating attachment and detachment during the insert process by moving the mesh member of the filter from the outside to the inside of the mold. It relates to a take-out robot for insert injection molding and an insert injection molding method using the same.

In general, injection molding is a molding method that creates a molded product by injecting plasticized molding material (plastic resin) into a sealed injection mold and hardening it. It is widely used as a molding method for

These days, injection molding methods are generally implemented as automated systems using injection molding machines and take-out robots.

The take-out robot is an automated facility used to take out and transfer the molded product when the mold of the injection molding machine is opened, and is driven along a set path to improve productivity.

Recent take-out robots have been added with an insert supply function that allows them to acquire molded products that have been molded during insert injection and supply new insert members to the mold.

Insert injection is performed by supplying and injecting resin while inserting an insert member (mesh member) made of, for example, nylon, polyester, or other materials into the cavity of an injection mold in advance, so that the resin and the insert member are integrated. It is a molding method that allows it to be molded into

Insert injection requires the resupply of insert members for the next process after the completed molded product is taken out, and this is implemented through automation through a take-out robot.

1A to 1D are diagrams sequentially showing the insert injection molding method using the above-described take-out robot.

Referring to FIGS. 1A to 1D, first, as shown in FIG. 1A, the take-out robot 1a is usually placed on an insert member (e.g., a mesh member of a filter member such as an air conditioner or air purifier) ( After moving to the position 101, the insert member 101 is adsorbed by the adsorption member 13 installed on the frame 11 mounted on the front end of the arm 1 of the take-out robot 1a.

At this time, the rotating member 5 of the arm 1 is rotated so that the insert member 101 is adsorbed by the adsorption member 13.

Next, as shown in FIG. 1B, the take-out robot 1a stands by at the top of the injection machine while adsorbing the insert member 101.

At this time, the rotating member 5 is rotated so that the adsorption member 13 faces the injection mold of the injection machine.

At this time, because the arm 1 must descend, it cannot be used as a general take-out robot 1a due to limitations in the operating distance due to the take-out of the completed molded product 103 and the insertion of the insert member 101. There was a problem that the take-out robot 1a had to be specially manufactured.

In addition, there was a problem that the altitude of the factory where the take-out robot (1a) operates had to be high due to the raising and lowering of the arm (1).

Next, as shown in FIG. 1C, after the insert member 101 adsorbed by the adsorption member 13 is inserted into the cavity of the injection mold, the arm 1 is raised and lowered by the stroke distance.

And after the take-out member 15 takes out the molded product 103, the arm 1 rises to its original position.

At this time, there is a problem in that loss of labor occurs during the inserting operation of the insert member 101 after the molded product 103 is taken out.

Then, as shown in FIG. 1D, the molded product 103 is moved upward to the conveyor to be taken out from the take-out member 15, and then the molded product 103 is dropped on the conveyor.

Even at this time, man-hour loss occurs in the moving operation for adsorbing the insert member 101 after taking out the molded product 103.

As described above, the conventional insert injection molding take-out robot 1a has a small vertical stroke of the arm 1 due to the two-stage operation of taking out the molded product 103 and inserting the insert member 101. There was a problem of interference with the frame 11 of the robot 1a and a lack of space.

In addition, the variable weight of the take-out robot (1a) (approximately 5 kg) was exceeded due to the excessive weight of the robot chuck (approximately 10 kg) due to the requirement for precision in the inserting operation.

Accordingly, there was a problem in that normal operation of the take-out robot 1a was difficult.

1. Registered Patent Publication No. 10-0952999: Take-out insert robot system equipped with insert nut alignment device 2. Registered Patent Publication No. 10-1576634: Safety operation system of take-out robot 3. Registered Patent Publication No. 10-2316034: Take-out robot device for injection molding machine 4. Registered Utility Model Publication No. 20-0478917: Take-out robot equipped with mold temperature measuring device

The present invention was created to solve the above problems. It prevents interference with the take-out robot frame and reduces the weight of the robot chuck, thereby reducing investment costs and increasing the plant's altitude by performing take-out and insert injection molding without the need to expand the specifications of the equipment. There is no need to increase the insert, and in the process of inserting the mesh member, which is an insert member, into the injection mold, the mesh member is not attached to the injection mold, cannot be inserted, and proceeds to the next process while attached to the take-out robot, preventing defects from occurring. The purpose is to provide a take-out robot for injection molding and an insert injection molding method using the same.

The take-out robot for insert injection molding of the present invention to achieve the above purpose,

A frame installed at the tip of the arm of the take-out robot;

At least one adsorption member installed on one front side of the frame to adsorb the insert member and seat the insert member in the injection mold;

A pair of take-out members is installed oppositely on the other front side of the frame to seat the molded product and take it out of the injection mold.

The adsorption member is,

An air cylinder device equipped with a cylinder rod capable of moving forward and backward;

A plurality of pressure members are installed around the air cylinder device to adhere to and pressurize one surface of the insert member so that the air cylinder device can stably adsorb and remove the insert member. .

In the present invention, a suction part is provided at the tip of the cylinder rod, and a double-sided adhesive tape is detachably attached to the front of the suction part so that the insert member is detachable.

In the present invention, a urethane block is installed at the tip of the pressing member to adhere and pressurize the insert member.

In the present invention, the pressing members are installed above and below the air cylinder device, respectively.

In the present invention, an elastic spring member is installed on the cylinder rod.

In the present invention, it is preferable that the cylinder rod is operated so as to be able to move in and out of the pressing member.

The insert injection molding method using the take-out robot for insert injection molding of the present invention to achieve the above object is,

In the insert injection molding take-out robot and insert injection molding method using the same,

(A) a step of the take-out robot moving to the insert member so that the take-out robot's adsorption member adsorbs the insert member;

(B) After the take-out robot stands by at the top of the injection machine with the insert member adsorbed, the arm of the take-out robot descends to produce the molded product in which the insert member is integrally molded with resin in the injection mold of the injection machine. A step of taking out the take-out robot immediately after seating it on the take-out member;

(C) lowering the stroke distance of the arm to insert the insert member adsorbed on the suction member into the cavity of the injection mold, and then inserting the insert member into the cavity;

(D) raising the arm to its original position.

According to an embodiment of the present invention, the size of the robot chuck can be reduced by taking out the finished molded product and allowing it to fall automatically, thereby preventing interference with the take-out robot frame, and also reducing the weight of the robot chuck to avoid interference with the frame. In order to withstand the high weight of the robot chuck, the installation of a robot with a large vertical transfer stroke and large variable weight increases the investment cost and improves the problem of having to increase the factory altitude, and uses a spring function on the cylinder rod to improve the correlation with the height difference of the insert member. It is designed to allow adsorption without pressure, and a pressurizing member is installed around the cylinder rod, so during the process of inserting the cylinder insert member mesh member into the mold cavity, the mesh member is not attached to the injection mold cavity, resulting in defects that occur when injection is carried out without the insert member. can be prevented.

1A to 1D are diagrams sequentially showing an insert injection molding method using a conventional insert injection molding take-out robot.
Figure 2 is a side view of the main configuration of the take-out robot for insert injection molding according to the present invention.
Figure 3 is a perspective view of the adsorption member of Figure 2.
4A to 4D are diagrams sequentially showing an insert injection molding method using a take-out robot for insert injection molding according to the present invention.

Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the attached drawings.

Figure 2 shows a side view of the main configuration of the take-out robot for insert injection molding according to the present invention.

And Figure 3 shows a perspective view of the adsorption member of Figure 2.

In addition, Figures 4a to 4d are diagrams sequentially showing an insert injection molding method using a take-out robot for insert injection molding according to the present invention.

Referring to FIGS. 2 to 4D, first, the take-out robot 10a for insert injection molding according to the present invention includes a frame 21 installed at the tip of the arm 1 of the take-out robot 10a, and this frame 21. ) is installed on one side of the front to adsorb the insert member (e.g., the mesh member of the filter member of an air conditioner or air purifier) 101, and the insert member is placed in a cavity in the injection mold 200 of the injection machine (see Figure 4c). An adsorption member 40 for seating (101), and a pair of opposingly installed on the other front side of the frame 21 to seat the molded product 103 that has been molded and take it out from the injection mold 200 ( 30).

And the adsorption member 40 includes an air cylinder device 40a equipped with a cylinder rod 43 capable of moving forward and backward, and at least one is installed around the air cylinder device 40a to support the insert member 101. It is configured to include a pressing member 42 that adheres to and pressurizes one surface (or upper surface) so that the air cylinder device 40a can stably adsorb and remove the insert member 101.

In addition, an adsorption portion 43b is provided at the tip of the cylinder rod 43, and a double-sided adhesive tape 45 can be detachably attached to the front of the adsorption portion so that the insert member 101 is detachable.

By attaching this double-sided adhesive tape 45 to the front of the suction part 43b, the insert member 101 can be easily adsorbed and removed.

Double-sided adhesive tape may also be attached to the cavity of the mold. In this case, it is preferable that the double-sided adhesive tape of the cavity has a higher adhesive force than the double-sided adhesive tape 45 of the cylinder rod. This means that the insert member 101 is moved into the mold cavity while attached to the cylinder rod, and after being adhered to the double-sided adhesive tape in the mold cavity, when the cylinder rod is retracted, the adhesive force of the double-sided adhesive tape in the mold cavity is relative. Because it is higher than the double-sided adhesive tape of the cylinder rod, the insert member may be separated from the cylinder rod and attached to the mold cavity.

In addition, a urethane block 42a made of an elastic material such as urethane is installed at the tip of the pressing member 42 to stably and closely press the insert member 101.

That is, the insert member 101 can be easily brought into close contact with and pressed by the properties of the elastic material of the urethane block 42a. Through this, the urethane block 42a prevents the insert member from falling off and being separated from the cavity of the mold even when the cylinder rod is retracted, allowing it to adhere to the mold cavity. Through this, the insert member can be stably adhered to the mold cavity.

In addition, the pressing members 42 are installed opposite to each other at the top and bottom (or front and rear) of the air cylinder device 40a to stably and closely pressurize the insert member 101.

In addition, the cylinder rod 43 is installed to be able to enter and exit the cylinder housing 44, and a spring member 43a is elastically installed on the cylinder rod 43, so that even if the standby position of the insert member 43a changes, It is attached to the cylinder rod 43 by the elasticity of the spring member 43a and proceeds to the next insert process.

Accordingly, the forward and backward operation of the cylinder rod 43 becomes easy, and thus the insert member 101 can be easily attached and removed.

In addition, the cylinder rod 43 is preferably operated so as to be able to move in and out of the pressing member 42.

That is, the cylinder rod 43 can move forward and backward so that it can be moved in and out of the urethane block 42a, which is the tip of the pressing member 42.

Therefore, when the cylinder rod 43 moves forward outside the tip of the urethane block 42a to adsorb the insert member 101, it can be easily adsorbed without being disturbed by the pressing member 42 and the urethane block 42a.

And after adsorbing the insert member 101, the cylinder rod 43 moves backward into the tip of the pressing member 42, so that the pressing member 42 has the effect of pushing the insert member 101, thereby producing the insert member ( 101) is forcibly or automatically separated from the cylinder rod 43.

Meanwhile, the unexplained drawing number 41 indicates an auxiliary frame.

The insert injection molding method using the take-out robot for insert injection molding according to the present invention having the configuration described above will be described as follows.

Referring again to FIGS. 2 to 4D, in the insert injection molding method using the take-out robot 10a for insert injection molding according to the present invention, first, as shown in FIG. 4a, the take-out robot 10a is an insert member ( 101) (e.g., a mesh member of a filter member of an air purifier or air conditioner) is moved to a conveyor with an insert member 101 and the insert member 101 is adsorbed (step 110).

At this time, the frame 21 is rotated by the rotating member 5 of the arm 1 of the take-out robot 10a so that the adsorption member 40 and the take-out member 30 are rotated in the direction of the conveyor.

Subsequently, as shown in FIG. 4b, after waiting at the top of the injection machine in a state in which the insert member 101 is adsorbed, the arm 1 descends to completely remove the insert member 101 from the injection mold 200. The molded product 103 made of resin (e.g., a filter member integrally molded with a mesh member inserted by molding a structure of resin) is placed on the take-out member 30 and taken out immediately (step 120).

At this time, the rotating member 5 rotates the frame 21 so that the suction member 40 and the take-out member 30 face the injection mold 200.

In particular, the molded product 103 taken out in step 120 leaves the take-out member 30 and falls on the conveyor at the bottom of the injection machine.

Subsequently, as shown in FIGS. 4C and 4D, the arm 1 descends the stroke distance in order to insert the insert member 101 adsorbed on the suction member 40 into the cavity of the injection mold 200. , the insert member 101 is inserted into the cavity (step 130).

Then, the arm 1 rises to its original position (step 140).

Next, the take-out robot 10a re-performs step 110.

In this way, the take-out robot for insert injection molding (10a) according to the present invention and the insert injection molding method using the same can reduce the descending distance of the arm (1), grab the molded product (103) and immediately take it out to the bottom of the injection machine. Because it is dropped, there is no need to add special specifications (or functions) to the take-out robot 10a, and there is no need to increase the altitude of the factory.

And since the molded product 103 is taken out immediately after it is seated by the take-out member 30, the seating distance can be reduced and the occurrence of lost man-hours can be prevented.

As described above, the present invention has been described with reference to an embodiment shown in the drawings, but this is merely illustrative, and various modifications and equivalent embodiments can be made by those skilled in the art. You will understand.

Therefore, the true scope of protection of the present invention should be determined only by the appended claims.

1. Arm
10a. Take-out robot
21. Frame
30. Take-out member
40. Adsorption member
40a. air cylinder device
42. Pressure member
42a. Urethane block
43. Cylinder rod
43b. Suction part
45. Double-sided adhesive tape
101. Insert member
103. Molded product
200. Injection mold

Claims (7)

A frame installed at the tip of the arm of the take-out robot;
At least one adsorption member installed on one front side of the frame to adsorb the insert member and seat the insert member in the injection mold;
A pair of take-out members is installed oppositely on the other front side of the frame to seat the molded product and take it out of the injection mold.
The adsorption member is,
An air cylinder device equipped with a cylinder rod capable of moving forward and backward;
At least one pressure member is installed around the air cylinder device to adhere to and pressurize one surface of the insert member so that the air cylinder device can stably adsorb and remove the insert member. Take-out robot for insert injection molding. According to paragraph 1,
A take-out robot for insert injection molding, characterized in that a suction part is provided at the tip of the cylinder rod, and a double-sided adhesive tape is detachably attached to the front of the suction part so that the insert member is detachable. According to paragraph 1,
A take-out robot for insert injection molding, characterized in that a urethane block is installed at the tip of the pressing member to closely adhere and pressurize the insert member. According to paragraph 1,
A take-out robot for insert injection molding, characterized in that the pressing members are installed above and below the air cylinder device, respectively. According to paragraph 1,
A take-out robot for insert injection molding, characterized in that an elastic spring member is installed on the cylinder rod. According to paragraph 1,
The cylinder rod is a take-out robot for insert injection molding, characterized in that it is operated to be able to enter and exit the inside and outside of the pressing member. In the insert injection molding take-out robot and insert injection molding method using the same,
(A) a step of the take-out robot moving to the insert member so that the take-out robot's adsorption member adsorbs the insert member;
(B) After the take-out robot stands by at the top of the injection machine with the insert member adsorbed, the arm of the take-out robot descends to produce the molded product in which the insert member is integrally molded with resin in the injection mold of the injection machine. A step of taking out the take-out robot immediately after seating it on the take-out member;
(C) lowering the stroke distance of the arm to insert the insert member adsorbed on the suction member into the cavity of the injection mold, and then inserting the insert member into the cavity;
(D) raising the arm to its original position; an insert injection molding method using a take-out robot for insert injection molding, comprising: