A cutting method and device for IMD film lamination process

Abstract

The present invention discloses a cutting method and device for use in an IMD film pasting process. After a gripping mechanism has finished picking up a piece, it rotates simultaneously with a film pasting machine tool. After reaching a designated position, a shearing mechanism completes the shearing of the workpiece. The present invention has the advantages of avoiding labor waste, avoiding high-temperature working environments, reducing the workload of front-line employees, achieving fully automatic shearing, improving production efficiency, and solving the problems of missed cutting and inadequate cutting that are prone to occur in manual trimming of material heads, thereby providing a guarantee for the next welding process.

Description

Technical Field

[0001] The invention relates to the field of IMD injection molding technology, in particular to a method and a device for IMD film pasting technology. Background Art

[0002] IMD film is adsorbed in the cavity by vacuum and is formed after processes such as film bonding, heating, and transplanting. The workpiece needs to remove excess branches. Traditional plastic product branches are removed by manual shearing, which causes labor waste and affects production efficiency. Manual trimming of the material head is prone to omissions and inadequate cutting. After IMD injection molding is completed, in order to ensure the deformation of the workpiece, the working environment temperature of the shearing will be relatively high, which is not conducive to manual shearing. If manual shearing is used, it will increase the processing cost and processing time for the enterprise. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a cutting method and device for IMD film lamination process, and the specific technical solution is as follows:

[0004] A cutting method for an IMD film bonding process comprises the following steps:

[0005] (1) The grasping mechanism avoids the singular point in the action and moves to the designated point to prepare for the grasping work;

[0006] (2) After the PLC controller sends a signal to the gripping mechanism, the gripping mechanism completes the picking action, the gripping mechanism exits the film laminating machine, and the gripping mechanism flips 30° to 60° in the plane according to the position of the workpiece (i.e., α = 30° to 60°);

[0007] (3) The gripping mechanism rotates around the base, and the film laminating process is carried out simultaneously on the film laminating machine;

[0008] (4) After the grabbing mechanism reaches the shearing position, the photoelectric sensor on the clamp is covered by the workpiece. The resistance value of the photoelectric sensor changes and then a pulse signal is sent out. The pulse signal is transmitted to the PLC controller. After receiving the pulse signal, the PLC controller controls the high-pressure solenoid valve after amplification by the relay. After the high-pressure solenoid valve is ventilated, the positive pressure gas is compressed, prompting the shearing mechanism to perform the shearing action. Under the action of the positive pressure gas, the automatic shearing work is completed;

[0009] (5) When the PLC detects the first pulse signal, it triggers the next set of pulse signals after a short delay. The pulse signal is amplified and directly acts on the high-pressure solenoid valve. The solenoid valve receives the power-off command and resets under the action of high-pressure gas, prompting the shear mechanism to open.

[0010] (6) After the shearing mechanism completes a shearing and opening action, the shearing mechanism moves linearly to move the IMD injection molded part to the next shearing point;

[0011] (7) The shearing mechanism repeats the shearing data in the PLC controller, i.e., the above-mentioned (5) and (6) processes, prompting the shearing mechanism to complete the shearing and opening actions.

[0012] The action repetition accuracy of the gripping mechanism is less than 0.1mm.

[0013] The present invention also provides a shearing device using the above method: it includes a film laminating machine, a gear rod is fixedly provided below the left end of the film laminating machine, the right end of the film laminating machine is fixedly provided, the left end and the right end of the film laminating machine are in sliding contact through a guide rod, the gear of the gear rod is in contact with the center gear, one side of the circumference of the center gear is a grabbing mechanism, the grabbing mechanism includes a base, the bottom of the base is a gear, the base is in contact with the center gear, a mechanical arm is provided above the base, the end of the mechanical arm is connected to the grabbing mechanism, a shearing mechanism is provided on one side of the grabbing mechanism, the shearing mechanism includes a bracket, a clamping shear is provided on the working plane of the bracket, and a photoelectric sensor is provided on one side of the clamping shear.

[0014] The input end of the shear is connected to the output end of the gas source, the input end of the gas source is connected to the output end of the solenoid valve, and the input end of the solenoid valve is connected to the PLC controller.

[0015] The advantages of the present invention are: avoiding labor waste, avoiding high-temperature working environment, reducing the work intensity of front-line employees, realizing full-automatic shearing, improving production efficiency, solving the problems of missed shearing and inadequate shearing that are prone to occur in manual trimming of material heads, and providing guarantee for the next welding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a logic block diagram of the present invention;

[0017] Figure 2 It is a schematic diagram of the overall structure of the shearing device and the film laminating machine;

[0018] Figure 3 It is a structural schematic diagram of the film laminating machine tool in the film laminating process after the gripping mechanism exits;

[0019] Figure 4 It is a schematic diagram of the structure of the grabbing mechanism and the shearing mechanism when the grabbing mechanism moves to the shearing position;

[0020] Figure 5 To remove the shear mechanism, Figure 2 Left view of

[0021] Figure 6 Schematic diagram of the connection between the grabbing mechanism, the central gear and the film laminating machine. DETAILED DESCRIPTION

[0022] The present invention is further described below in conjunction with the accompanying drawings, a cutting method for IMD film bonding process, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, the following steps are included:

[0023] (1) The grasping mechanism 8 avoids the singular point in the action, and the grasping mechanism 8 moves to the designated point to prepare for the work of grasping the workpiece 12;

[0024] (2) After the PLC controller sends a signal to the gripping mechanism 8, the gripping mechanism 8 completes the picking action, the gripping mechanism 8 exits the film laminating machine 1, and the gripping mechanism 8 flips 30° to 60° in the plane according to the position of the workpiece 12 (i.e., α = 30° to 60°);

[0025] (3) The gripping mechanism 8 rotates around the base, and the film laminating process is performed on the film laminating machine 1 at the same time;

[0026] (4) After the gripping mechanism 8 reaches the shearing position, the photoelectric sensor 1101 on the clamping shear 11 is covered by the workpiece 12. The resistance value of the photoelectric sensor 1101 changes and then a pulse signal is sent out. The pulse signal is transmitted to the PLC controller. After receiving the pulse signal, the PLC controller controls the high-pressure solenoid valve after amplification by the relay. After the high-pressure solenoid valve is ventilated, the positive pressure gas is compressed, prompting the shearing mechanism to perform the shearing action. Under the action of the positive pressure gas, the automatic shearing work is completed;

[0027] (5) When the PLC detects the first pulse signal, it triggers the next set of pulse signals after a short delay. The pulse signal is amplified and directly acts on the high-pressure solenoid valve. The solenoid valve receives the power-off command and resets under the action of high-pressure gas, prompting the shear mechanism to open.

[0028] (6) After the shearing mechanism completes a shearing and opening action, the shearing mechanism moves linearly to move the IMD injection molded part to the next shearing point;

[0029] (7) The shearing mechanism repeats the shearing data in the PLC controller, i.e., the above-mentioned (5) and (6) processes, prompting the shearing mechanism to complete the shearing and opening actions.

[0030] The action repetition accuracy of the gripping mechanism is less than 0.1mm.

[0031] The present invention also provides a shearing device using the above method: it includes a film laminating machine 1, a gear rod 2 is fixedly provided below the left end of the film laminating machine 1, the right end of the film laminating machine 1 is fixedly provided, the left end and the right end of the film laminating machine 1 are in sliding contact through a guide rod 3, the gear of the gear rod 2 is in contact with the center gear 4, one side of the circumference of the center gear 4 is a grabbing mechanism 5, the grabbing mechanism 5 includes a base 6, the bottom of the base 6 is a gear 601, the base 6 is in contact with the center gear 4, a mechanical arm 7 is provided above the base 6, the end of the mechanical arm 7 is connected to the grabbing mechanism 8, a shearing mechanism 9 is provided on one side of the grabbing mechanism 5, the shearing mechanism 9 includes a bracket 10, a clamp 11 is provided on the working plane of the bracket 10, a photoelectric sensor 1101 is provided on one side of the clamp, the input end of the clamp 11 is connected to the output end of the air source 13, the input end of the air source 13 is connected to the output end 14 of the solenoid valve, and the input end of the solenoid valve 14 is connected to the PLC controller.

[0032] The PLC controller, mechanical arm, grasping mechanism, photoelectric sensor, can all be commercially available products, such as the model of the s7-200 programming controller of Tianjin Sifang Hengye Processing Company;

[0033] The robot arm uses UR's UR-3 robot with a size of 19.7 inches;

[0034] The gripping mechanism uses a vacuum suction cup with a size of 600*2000 / 8 disc from Chengrui Hardware Electronics Company;

[0035] The photoelectric sensor used is the model 5506 product of TELESKY Company.

Claims

1. A film cutting method for IMD film lamination process, characterized by the following steps: (1) The grasping mechanism avoids the singular point in the action and moves to the designated point to prepare for the grasping work; (2) After the PLC controller sends a signal to the gripping mechanism, the gripping mechanism completes the picking action, the gripping mechanism exits the film laminating machine, and the gripping mechanism flips 30° to 60° in the plane according to the position of the workpiece, that is, α = 30° to 60°; (3) The gripping mechanism rotates around the base, and the film laminating process is carried out simultaneously on the film laminating machine; (4) After the grabbing mechanism reaches the shearing position, the photoelectric sensor on the clamp is covered by the workpiece. After the resistance value of the photoelectric sensor changes, a pulse signal is immediately sent out. The pulse signal is transmitted to the PLC controller. After receiving the pulse signal, the PLC controller controls the high-pressure solenoid valve after amplification by the relay. After the high-pressure solenoid valve is ventilated, the positive pressure gas is compressed, prompting the shearing mechanism to perform the shearing action. Under the action of the positive pressure gas, the automatic shearing work is completed; (5) When the PLC detects the first pulse signal, it triggers the next set of pulse signals after a short delay. The pulse signal is amplified and directly acts on the high-pressure solenoid valve. The solenoid valve receives the power-off command and resets under the action of high-pressure gas, prompting the shear mechanism to open. (6) After the shearing mechanism completes a shearing and opening action, the shearing mechanism moves linearly and moves the IMD injection molded part to the next shearing point; (7) The shearing mechanism repeats the shearing data in the PLC controller, i.e., the above-mentioned (5) and (6) processes, prompting the shearing mechanism to complete the shearing and opening actions.

2. The sheet cutting method for IMD film lamination process according to claim 1, characterized in that: The action repetition accuracy of the gripping mechanism is less than 0.1mm.

3. A shearing device using the method of claim 1, comprising a film laminating machine, a gear rod is fixedly provided below the left end of the film laminating machine, the right end of the film laminating machine is fixedly provided, and the left end and the right end of the film laminating machine are in sliding contact through a guide rod, characterized in that: The gear of the gear rod is in contact with the center gear, and one side of the circumference of the center gear is a grabbing mechanism, which includes a base, and the bottom of the base is a gear. The base is in contact with the center gear, and a mechanical arm is provided above the base. The end of the mechanical arm is connected to the grabbing mechanism, and a shearing mechanism is provided on one side of the grabbing mechanism. The shearing mechanism includes a bracket, and a shearing clip is provided on the working plane of the bracket, and a photoelectric sensor is provided on one side of the shearing clip.

4. The cutting device according to claim 3, characterized in that: The input end of the clamp is connected to the output end of the gas source, the input end of the gas source is connected to the output end of the solenoid valve, and the input end of the solenoid valve is connected to the PLC controller.

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