Automatic needle valve burr removing device

Abstract

The utility model discloses an automatic needle valve burr removing device which comprises a support, a telescopic arm, a fixing block, a plurality of hot air guns, a plurality of elastic collet chucks, a movable track and a mechanical arm control system, one end of the support is in sliding connection with the movable track through a servo motor, one end of the telescopic arm is fixedly connected with the other end of the support, and the other end of the telescopic arm is fixedly connected with the mechanical arm control system. The injection molding control system sends a mold opening completion signal to the mechanical arm control system, the mechanical arm control system sends a moving instruction to the servo motor and the hydraulic system in the telescopic arm after receiving the mold opening completion signal, and a needle valve point on the color injection surface of a product is baked through hot air of the hot air gun; the burrs are melted and firmly attached to the surface of a one-color product, the problem that the one-color material is brought to the surface of a two-color material is avoided when the two-color material is injected, the overall electroplating yield of the product is greatly improved, the frequency of replacing the valve needle sleeve and the valve needle is reduced, and the production cost is reduced to a certain extent.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection molding production technical field especially relates to a needle valve burr automatic removal device. BACKGROUND

[0002] Due to structure limitation, the one-color glue port is generally made on the one-color product surface in the needle valve dispensing mode in the design of the double-color injection molding part mold, the one-color glue port will be perfectly covered when the two-color encapsulation, but due to the damage of the glue needle in the needle valve due to the multiple movement and friction, the burr will be produced during production, and the burr will be punched on the surface of the two-color product during the secondary encapsulation, since the one-color material of the double-color electroplated product will not be electroplated, the high plating leakage ratio near the one-color glue port will be caused, and the one-color material on the two-color surface during the two-color injection molding will also cause the problem of the scrap of the product in the large quantity of the quality monitoring.

[0003] In order to solve the above technical problems, a needle valve burr automatic removal device is needed. INVENTION CONTENTS

[0004] The utility model discloses a kind of needle valve burr automatic removal devices, which is to solve the shortcomings in prior art.

[0005] A kind of needle valve burr automatic removal device, including support, telescopic arm, fixed block, several hot air guns, several elastic cylinder clamps, movable track and mechanical arm control system, one end of the support is slidably connected with movable track by servo motor, one end of the telescopic arm is fixedly connected with the other end of the support, the other end of the telescopic arm is installed on one side of the fixed block, a plurality of fixed holes are formed in the fixed block, the elastic cylinder clamp is arranged in the fixed hole, and the hot air gun is fixed on the fixed block by the elastic cylinder clamp;The servo motor is connected with the mechanical arm control system, the mechanical arm control system is connected with the injection control system, the telescopic arm is provided with hydraulic system, the hydraulic system is connected with the mechanical arm control system, and the injection control system is connected with the pick-up robot.

[0006] Further, the elastic cylinder clamp corresponds to the fixed hole, one end of the elastic cylinder clamp is cylindrical and the diameter is matched with the diameter of the hot air gun, the other end of the elastic cylinder clamp is provided with a plurality of clamping strips, and the cross-sectional diameter formed by the plurality of clamping strips gradually decreases, so that the hot air gun is fixed by the plurality of clamping strips.

[0007] Further, the telescopic arm includes a fixed segment, a moving segment and a telescopic cylinder, one end of the fixed segment is fixedly connected with the support, the moving segment is arranged at the other end of the fixed segment by the telescopic cylinder, and the hydraulic system is used to control the movement of the telescopic cylinder.

[0008] Further, the hot air nozzle of the hot air gun is 1.5 cm away from the needle valve point on the back mold operation surface.

[0009] Further, the inner wall of the clamping strip is provided with a scratch-proof pad, and the inner wall of one end of the elastic cylinder clamp is provided with an anti-skid pad.

[0010] Further, the servo motor adopts an X / Y axis servo motor.

[0011] Beneficial effects: the injection molding control system sends a mold opening completion signal to the mechanical arm control system, the mechanical arm control system sends a moving instruction to the hydraulic system on the servo motor and telescopic arm after receiving the mold opening completion signal, moves the hot air gun to a specified position, stays for a period of time, and melts the burr on the needle valve point on the back mold operation surface through the hot air of the hot air gun, firmly adheres the burr to the surface of the one-color product, avoids the problem of bringing one-color material to the surface of two-color product when injecting two-color, not only greatly improves the overall yield of product electroplating, but also reduces the frequency of replacing the valve needle sleeve and the valve needle, saves manpower and material resources, and reduces production cost to a certain extent. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is a three-dimensional structure schematic diagram of the needle valve burr automatic removal device of the utility model;

[0013] Figure 2 is a three-dimensional structure schematic diagram of the elastic cylinder clamp of the utility model;

[0014] Figure 3 is a working principle diagram of the utility model;

[0015] In the drawings:

[0016] Support 1; Telescopic arm 2; Fixed block 3; Hot air gun 4; Elastic cylinder clamp 5; Clamping strip 5a. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0018] Please refer to Figures 1-3The embodiment provides a needle valve burr automatic removing device, which is used for baking the product back mold operation surface after the mold of an injection molding machine is opened before a taking robot takes the product. The injection molding machine is provided with an injection molding control system. The device comprises a support 1, a telescopic arm 2, a fixed block 3, a plurality of hot air guns 4, a plurality of elastic cylinder clamps 5, a movable track and a mechanical arm control system. One end of the support 1 is slidably connected with the movable track through a servo motor. The servo motor is an X / Y axis servo motor. One end of the telescopic arm 2 is fixedly connected with the other end of the support 1. One side of the fixed block 3 is mounted on the other end of the telescopic arm 2. A hydraulic system is arranged on the telescopic arm 2. The telescopic arm 2 comprises a fixed section, a moving section and a telescopic cylinder. One end of the fixed section is fixedly connected with the support 1. The moving section is arranged on the other end of the fixed section through the telescopic cylinder. The hydraulic system is used for controlling the movement of the telescopic cylinder. A plurality of fixed holes are formed in the fixed block 3. The elastic cylinder clamps 5 are arranged in the fixed holes. The hot air guns 4 are fixed on the fixed block 3 through the elastic cylinder clamps 5. The elastic cylinder clamps 5 correspond to the fixed holes. One end of the elastic cylinder clamps 5 is in a cylindrical shape and has a diameter matched with that of the hot air guns 4. An anti-skid pad is arranged on the inner wall of the one end of the elastic cylinder clamps 5. The other end of the elastic cylinder clamps 5 is provided with a plurality of clamping strips 5a. The cross-sectional diameters of the clamping strips 5a gradually decrease. The hot air guns 4 are fixed through the plurality of clamping strips 5a. Anti-scratch pads are arranged on the inner walls of the clamping strips 5a to prevent the gun barrels of the hot air guns 4 from being abraded and damaged. When the hot air guns 4 are installed, the hot air nozzles of the hot air guns 4 are directed to the product back mold operation surface. The other ends of the hot air nozzles are inserted into the elastic cylinder clamps 5 and fixed by the clamping strips 5a. The clamping strips 5a are made of elastic sheets and have a certain elasticity to support the gun barrels of the hot air guns 4. The anti-skid pads arranged on the inner walls of the one ends of the elastic cylinder clamps 5 can prevent the hot air guns 4 from moving or falling off to a certain extent. When the hot air guns 4 need to be replaced, the hot air guns 4 are moved in the direction of the clamping strips 5a until the hot air guns 4 are removed from the elastic cylinder clamps 5. The servo motor is in communication connection with the mechanical arm control system. The mechanical arm control system adopts a PLC controller. The mechanical arm control system is in communication connection with the injection molding control system. The hydraulic system is in communication connection with the mechanical arm control system. The injection molding control system is in communication connection with the taking robot. The distance between the hot air nozzles of the hot air guns 4 and the needle valve points on the back mold operation surface is 1.5 cm. The hot air guns 4 are controlled to be 1.5 cm to prevent the distance from being too close to damage the surface of the product on the color surface. If the distance is too far, the baking time is long, the taking robot cannot take the product and the adhesion of the burrs on the color surface to the surface of the product is reduced.

[0019] The injection molding control system sends a mold opening completion signal to the mechanical arm control system, the mechanical arm control system sends a moving instruction to the hydraulic system on the servo motor and telescopic arm 2 after receiving the mold opening completion signal, moves the hot air gun 4 to a specified position, and stays for a period of time (the stay time can be set according to user requirements, and the stay time of the embodiment is set to 2 seconds, and the hot air temperature blown by the hot air gun 4 is 350 DEG C), and after the hot air gun 4 is used to bake the product on the needle valve point (that is, the glue feeding point, the product has a needle valve point on the product mold operation surface, and the burr caused by the glue feeding point is melted and firmly attached to the surface of the monochrome product, and when two-color injection is performed, the problem of bringing monochrome material to the surface of the two-color product is avoided, not only the overall yield of the product electroplating is greatly improved, but also the frequency of replacing the valve needle sleeve and the valve needle is reduced, manpower and material resources are saved, and the production cost is reduced to a certain extent. Figure 1

[0020] Please refer to Figure 3 The specific process of the utility model in use is as follows:

[0021] The injection molding control system sends a mold opening completion signal, the mechanical arm control system receives the mold opening completion signal, the mechanical arm control system moves the hot air nozzle of the hot air gun 4 to a specified position through the servo motor and the hydraulic system on the telescopic arm 2, after the hot air gun 4 returns to the standby position after baking is completed, the mechanical arm control system sends a baking operation completion instruction to the injection molding control system, the injection molding control system sends a picking instruction to the picking robot for two-color injection, the mechanical arm control system accurately controls the moving distance of the support 1 and the telescopic arm 2 and the baking time of the hot air gun 4, does not affect the normal picking of the picking robot for two-color injection and the overall product production cycle.

[0022] Finally, it should be noted that: the above only for preferred embodiments of the utility model, and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can modify the technical scheme recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model, should be included in the protection scope of the utility model.​

Claims

1. An automatic burr removal device for needle valves, wherein the device is used to bake the operating surface of the rear mold of the product after the injection molding machine has finished opening the mold before the part is picked up by the part-removing robot, wherein the injection molding machine is equipped with an injection molding control system, characterized in that: Including support (1), telescopic arm (2), fixed block (3), several hot air guns (4), several elastic collets (5), movable track and mechanical arm control system, one end of the support (1) is slidably connected with the movable track through a servo motor, one end of the telescopic arm (2) is fixedly connected with the other end of the support (1), one side of the fixed block (3) is installed at the other end of the telescopic arm (2), a plurality of fixing holes are formed in the fixed block (3), the elastic collet (5) is arranged in the fixing hole, and the hot air gun (4) is fixed on the fixed block (3) through the elastic collet (5); The servo motor is in communication connection with the mechanical arm control system, the mechanical arm control system is in communication connection with the injection control system, the telescopic arm (2) is provided with a hydraulic system, the hydraulic system is in communication connection with the mechanical arm control system, and the injection control system is in communication connection with the taking robot.

2. The needle valve burr automatic removing device according to claim 1, characterized in that: The elastic collet (5) corresponds to the fixing hole, one end of the elastic collet (5) is cylindrical and has a diameter matched with that of the hot air gun (4), the other end of the elastic collet (5) is provided with a plurality of clamping strips (5a), and the cross-sectional diameter formed by the plurality of clamping strips (5a) gradually decreases, so that the hot air gun (4) is fixed by the plurality of clamping strips (5a) through the elastic collet (5).

3. The needle valve burr automatic removing device according to claim 1, characterized in that: The telescopic arm (2) includes a fixed segment, a moving segment and a telescopic cylinder, one end of the fixed segment is fixedly connected with the support (1), the moving segment is arranged at the other end of the fixed segment through the telescopic cylinder, and the hydraulic system is used for controlling the movement of the telescopic cylinder.

4. The needle valve burr automatic removing device according to claim 1, characterized in that: The hot air nozzle of the hot air gun (4) is 1.5 cm away from the needle valve point on the back mold operation surface.

5. The needle valve burr automatic removing device according to claim 2, characterized in that: The inner walls of the plurality of clamping strips (5a) are provided with anti-scratch pads, and the inner wall of one end of the cylindrical elastic collet (5) is provided with an anti-slip pad.

6. The needle valve burr automatic removal device according to claim 1, characterized in that: The servo motor adopts an X / Y axis servo motor.

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