Injection molding device for manufacturing electromagnetic valve coil

Abstract

The invention provides an injection molding device for electromagnetic valve coil manufacturing, and relates to the technical field of electromagnetic coil injection molding, the injection molding device comprises a material table, a conveying line, a rotary distribution disc, a six-axis robot and two injection molding machines, the conveying line is installed above the material table, and a material disc is arranged on the conveying line; by means of the automatic feeding and discharging function, the labor intensity of workers can be effectively relieved, the feeding and discharging efficiency can be effectively improved, the waiting time of an injection molding machine is shortened, the injection molding efficiency is improved, and the problem that in the traditional coil injection molding process, the injection molding efficiency is greatly improved is solved. A coil needs to be manually installed into an injection mold, a finished coil is manually disassembled after injection molding is completed, the labor intensity of workers is large, the efficiency is low, meanwhile, pins need to be assembled on a coil blank before coil injection molding, the coil subjected to injection molding needs to be subjected to a conduction test, and the conveying cost of workpieces can be increased due to the fact that multiple steps are conducted separately. And the injection molding efficiency of the coil is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of electromagnetic coil injection molding, in particular to an injection molding device for manufacturing electromagnetic valve coils. Background Art

[0002] Coil injection molding of solenoid valves is a manufacturing technology that uses an injection molding process to wrap thermosetting or thermoplastic materials around the outside of the coil to improve its protection, insulation and mechanical strength. This process usually uses materials such as epoxy resin, nylon (PA), polyphenylene sulfide (PPS) or BMC unsaturated polyester. The molten plastic is injected into the coil body through a mold to form a sealing layer outside the coil, which can effectively improve protection and sealing, effectively prevent water and dust, and adapt to harsh environments such as high temperature and corrosion.

[0003] In the traditional coil injection molding process, the coil needs to be manually installed into the injection mold and the finished coil needs to be manually disassembled after the injection molding is completed. The manual labor intensity is high and the efficiency is low. At the same time, the coil blank needs to be assembled with pins before the coil injection molding, and the injection-molded coil needs to undergo a conduction test. Performing multiple steps separately will increase the transportation cost of the workpiece and reduce the coil injection molding efficiency. Summary of the invention

[0004] The present invention provides an injection molding device for manufacturing solenoid valve coils to solve the problem that in the traditional coil injection molding process, the coil needs to be manually installed into the injection mold and the finished coil needs to be manually disassembled after the injection molding is completed. The manual labor intensity is high and the efficiency is low. At the same time, the coil blank needs to be assembled with pins before the coil is injection molded, and the injection-molded coil needs to undergo a conduction test. Performing multiple steps separately will increase the transportation cost of the workpiece and reduce the coil injection molding efficiency.

[0005] The present invention provides an injection molding device for manufacturing solenoid valve coils, specifically comprising: a material table, a conveyor line, a rotating distribution disk, a six-axis robot, and two injection molding machines. A conveyor line is installed above the material table, and a material disk is arranged on the conveyor line. A loading robot and an unloading robot are installed above the material table by screws. A reducer is arranged above the conveyor line, and the input shaft of the reducer is connected to the rotating shaft of a servo motor through a coupling. The upper end of the output shaft of the reducer is connected to and drives the rotating distribution disk. The axis of the rotating distribution disk is perpendicular to the upper surface of the material table. Four turntable carriers are arranged on the upper edge of the rotating distribution disk. A plug-in mechanism and a conduction test mechanism are installed above the conveyor line through a bracket. The plug-in mechanism and the conduction test mechanism are respectively located above the rear quadrant point and above the right quadrant point of the rotating distribution disk. The two injection molding machines are both located behind the material table, and the six-axis robot is located between the two injection molding machines.

[0006] Furthermore, the conveyor line is a belt conveyor, the right end of the conveyor line is the blank feeding end, the left end of the conveyor line is the finished product discharging end, and a conveying drive motor is provided at the bottom of the right end of the conveyor line, and the conveying drive motor drives the right end shaft of the conveyor line to rotate counterclockwise.

[0007] Furthermore, a protective cover is provided above the material table, and two openings are respectively provided at the left and right ends of the material table protective cover, and the conveying line passes through the two openings of the protective cover horizontally.

[0008] Furthermore, the loading robot is a four-axis robot, which is located at the rear right side of the conveyor line. A coil blank clamp is installed at the end of the loading robot, and a loading camera is installed at the end of the loading robot.

[0009] Furthermore, the unloading robot is a four-axis robot, which is located on the rear left side of the conveyor line, and a coil finished product clamp is installed at the end of the unloading robot.

[0010] Furthermore, the rotary distribution disc is driven by a reducer and a servo motor to rotate clockwise, and a loading position and a unloading position are provided on the turntable carrier.

[0011] Furthermore, a robot gripper is installed at the end of the six-axis robot by bolts, and coil clamps, injection molded product clamps and nozzle clamps are respectively arranged on three surfaces of the robot gripper.

[0012] Furthermore, a crusher is provided between the two injection molding machines, a water inlet conveying line is provided above the feed inlet of the crusher, and the water inlet conveying line is an inclined roller conveyor belt.

[0013] Furthermore, a micro push cylinder is installed on the left and right sides of the bracket of the conduction test mechanism respectively, the push rod of the micro push cylinder faces the center of the rotating distribution disk, and a conduction probe is provided at the end of the push rod of the micro push cylinder.

[0014] Furthermore, a limit push cylinder is fixedly connected to the upper part of the bracket of the conduction test mechanism, a guide cylinder test limit block is fixedly connected to the lower end of the push rod of the limit push cylinder, and a circular groove is provided on the lower surface of the guide cylinder test limit block.

[0015] The present invention provides an injection molding device for manufacturing a solenoid valve coil, which has the following beneficial effects: The electromagnetic coil injection molding device in the present invention has convenient loading and unloading methods. Through the cooperation of the conveyor line, the material tray and two groups of four-axis robots, the material tray with the blank coil is placed through the blank feeding end, and the blank coil is transported to the inside of the material table along the conveyor line. Then, the blank coil in the material tray is automatically transported to the upper material position by the loading robot for automatic loading; at the same time, the finished coil that has completed injection molding is taken from the unloading position by the unloading robot and placed in the material tray that is transported to the finished product discharge end position for automatic discharge. The automatic loading and unloading function can effectively reduce the labor intensity and loading and unloading efficiency of manual labor, reduce the waiting time of the injection molding machine, and improve the injection molding efficiency.

[0016] In addition, the rotating distribution plate is used as an important part of the coil conveying link. As the rotating distribution plate rotates clockwise, the blank coil after loading is transported clockwise to the position of the plug-in mechanism along the turntable carrier, and the pins in the coil blank are assembled through the plug-in mechanism. Then, the turntable carrier is exchanged with the blank coil and the finished coil in the injection molding machine through the six-axis robot, and the blank coil at the loading position is transferred to the injection molding machine for injection molding. At the same time, the finished coil after injection molding is inserted into the unloading position. As the rotating distribution plate rotates clockwise, the finished coil is transported to the bottom of the conduction test mechanism for conduction test, and finally transported to the vicinity of the unloading robot for unloading. Through the setting of the rotating distribution plate, the rotating distribution plate is used as a positioning frame for loading, unloading, pin assembly, and conduction test of the coil. At the same time, the precise transfer of the coil in multiple processing steps can be completed, which is convenient for the combination of multiple steps in the coil injection molding process, improves the utilization effect of space, and makes the injection molding device more integrated.

[0017] In addition, the six-axis robot has the function of clamping blank coils, finished coils, and sprues. The six-axis robot can be used to transfer blank coils to the injection molding machine, place the finished coils, and disassemble the injection sprues. A crusher is also provided for the treatment of the injection sprues. The discarded sprues can be disassembled by the six-axis robot and transferred to the sprue conveyor line, and then transported to the crusher through the sprue conveyor line for crushing and recycling. The improvement of the six-axis robot can meet multiple needs and reduce the investment cost of the injection molding device. The transfer efficiency of the coils can be further improved by reasonably planning the switching and coordination of various grippers in the robot gripper. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0019] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0020] In the attached picture: Figure 1 A schematic diagram showing the overall structure of the present application; Figure 2 A schematic diagram of the top view of the structure of the present application is shown; Figure 3 Shows a schematic diagram of the structure of the rear of this application; Figure 4 The schematic diagram of the structure of the conveyor line of the present application is shown; Figure 5 Shows this application Figure 4 A schematic diagram of a top view structure; Figure 6 The structural schematic diagram of the rotary distribution disk of the present application is shown; Figure 7 A schematic diagram of the structure of the bottom of the rotating distribution plate of the present application is shown; Figure 8 The schematic diagram of the structure of the plug-in mechanism of the present application is shown; Fig. 9 The schematic diagram of the structure of the conduction test mechanism of the present application is shown; Fig.10 A schematic diagram of the structure of the guide cylinder test limit block of the present application is shown; Fig.11 A schematic structural diagram of the robot gripper of the present application is shown.

[0021] Reference numerals: 1. Material table; 2. Conveyor line; 201. Blank feeding end; 202. Finished product discharging end; 203. Conveying drive motor; 3. Material tray; 4. Loading robot; 401. Coil blank clamp; 402. Loading camera; 5. Unloading robot; 501. Coil finished product clamp; 6. Reducer; 7. Servo motor; 8. Rotating distribution plate; 801. Turntable carrier; 802. Loading position; 803. Unloading position; 9. Plug-in mechanism; 10. Six-axis robot; 1001. Robot gripper; 1002. Coil clamp; 1003. Injection molding finished product clamp; 1004. Water nozzle clamp; 11. Injection molding machine; 12. Conductivity test mechanism; 1201. Micro push cylinder; 1202. Conductivity probe; 1203. Limit push cylinder; 1204. Guide cylinder test limit block; 13. Water nozzle conveyor line; 14. Crusher. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Example 1: Please refer to Figures 1 to 11 : The present invention proposes an injection molding device for manufacturing solenoid valve coils, comprising: a material table 1, a conveyor line 2, a rotating distribution disk 8, a six-axis robot 10, and two injection molding machines 11. A conveyor line 2 is installed above the material table 1, and a material disk 3 is arranged on the conveyor line 2. A loading robot 4 and a unloading robot 5 are installed above the material table 1 by screws. A reducer 6 is arranged above the conveyor line 2. The input shaft of the reducer 6 is connected to the rotating shaft of a servo motor 7 through a coupling. The upper end of the output shaft of the reducer 6 is connected to and drives the rotating distribution disk 8. The axis of the rotating distribution disk 8 is perpendicular to the upper surface of the material table 1. Four turntable carriers 801 are arranged on the upper edge of the rotating distribution disk 8. A plug-in mechanism 9 and a conductive conductive member are installed above the conveyor line 2 through a bracket. The testing mechanism 12, the plug-in mechanism 9 and the conduction testing mechanism 12 are respectively located above the rear quadrant point and the right quadrant point of the rotating distribution disk 8. The two injection molding machines 11 are both located behind the material table 1, and the six-axis robot 10 is located between the two injection molding machines 11. With the cooperation of the conveyor line 2, the tray 3 loading robot 4 and the unloading robot 5, the loading robot 4 transfers the blank coil in the tray 3 transported into the material table 1 to the upper material position 802 for automatic loading. The finished coil after injection molding is taken from the unloading position 803 by the unloading robot 5 and placed in the tray 3 conveyed to the finished product discharge end 202, completing the automatic discharge of the finished coil, reducing the labor intensity and loading and unloading efficiency.

[0024] In the disclosed embodiment, the conveyor line 2 is a belt conveyor, the right end of the conveyor line 2 is the blank feeding end 201, the left end of the conveyor line 2 is the finished product discharging end 202, and a conveying drive motor 203 is provided at the bottom of the right end of the conveyor line 2. The conveying drive motor 203 drives the right end shaft of the conveyor line 2 to rotate counterclockwise; the conveyor drive motor 203 drives the conveyor line 2 to rotate counterclockwise, and the material tray 3 is conveyed from right to left.

[0025] In the disclosed embodiment, a protective cover is provided above the material table 1, and two openings are respectively provided at the left and right ends of the protective cover of the material table 1. The conveyor line 2 passes horizontally through the two openings of the protective cover. The protective cover reduces dust entering the loading robot 4, the unloading robot 5, and the rotating distribution plate 8, and reduces noise.

[0026] In the disclosed embodiment, the loading robot 4 is a four-axis robot, and the loading robot 4 is located at the rear right side of the conveyor line 2. A coil blank clamp 401 is installed at the end of the loading robot 4, and a loading camera 402 is installed at the end of the loading robot 4. The blank coil is clamped by the coil blank clamp 401, and the blank coil in the material tray 3 located at the blank feeding end 201 is transferred to the loading position 802. During the process, visual inspection and positioning are performed by the loading camera 402 to improve the grasping accuracy of the loading robot 4.

[0027] In the disclosed embodiment, the unloading robot 5 is a four-axis robot, which is located on the left side behind the conveyor line 2. A finished coil clamp 501 is installed at the end of the unloading robot 5. The finished coil located in the unloading position 803 is removed by the unloading robot 5 and placed in the material tray 3 located at the finished product discharge end 202, thereby realizing automatic unloading of the finished coil.

[0028] In the disclosed embodiment, the rotating distribution plate 8 is driven by the reducer 6 and the servo motor 7 to rotate clockwise, and a loading position 802 and a unloading position 803 are provided on the turntable carrier 801; when loading, the blank coil is clamped and installed in the loading position 802 by the loading robot 4, and the loading position 802 serves as the installation position for the blank coil. After the six-axis robot 10 removes the finished coil that has been injection molded in the injection molding machine 11, it is placed in the unloading position 803, and the unloading position 803 serves as the installation position for the finished coil.

[0029] In the disclosed embodiment, a robot gripper 1001 is installed at the end of the six-axis robot 10 by bolts, and coil clamps 1002, injection molding finished product clamps 1003 and sprue clamps 1004 are respectively provided on three surfaces of the robot gripper 1001. The six-axis robot 10 has the functions of clamping the blank coil, the finished product coil and the sprue. The six-axis robot 10 can realize the functions of transporting the blank coil to the injection molding machine 11, discharging and placing the finished product coil, and disassembling the injection molding sprue. Through the improvement of the six-axis robot 10, multiple functions can be combined into one, the investment cost of the injection molding device can be reduced, and the transfer efficiency of the coil can be improved by reasonably planning the switching and coordination of various clamps in the robot gripper 1001.

[0030] In the disclosed embodiment, a crusher 14 is provided between two injection molding machines 11, and a sprue conveyor line 13 is provided above the feed port of the crusher 14, and the sprue conveyor line 13 is an inclined roller conveyor belt; after the finished coils after injection molding are taken out, the discarded sprues are disassembled by the six-axis robot 10 and transferred to the sprue conveyor line 13, and transported into the crusher 14 through the sprue conveyor line 13 for crushing, so that the waste materials are recycled.

[0031] Embodiment 2: On the basis of embodiment 1, a micro push cylinder 1201 is installed on the left and right sides of the bracket of the conduction test mechanism 12, respectively. The push rod of the micro push cylinder 1201 faces the center of the rotating distribution disk 8, and a conduction probe 1202 is provided at the end of the push rod of the micro push cylinder 1201; a limited push cylinder 1203 is fixedly connected to the upper part of the bracket of the conduction test mechanism 12, and a guide cylinder test limit block 1204 is fixedly connected to the lower end of the push rod of the limit push cylinder 1203, and a circular card groove is provided on the lower surface of the guide cylinder test limit block 1204; the conduction test mechanism 12 is located at the right quadrant point above the rotating distribution disk 8 When the rotating distribution disk 8 rotates clockwise and the finished coil is transported to the position of the conduction test mechanism 12 through rotation, the conduction probes 1202 on both sides are respectively located on both sides of the finished coil, and the guide tube test limit block 1204 is pushed downward by the limit push cylinder 1203, so that the card slot below the guide tube test limit block 1204 is in close contact with the coil to reinforce the coil, and then the two conduction probes 1202 are pushed toward the coil by two micro push cylinders 1201, so that the conduction probes 1202 on both sides are respectively in contact with the contact pins of the two rows of finished coils in the discharge position 803, and the conduction test of the finished coil is performed.

[0032] The working principle of this embodiment is as follows: first, the blank coil is placed in the material tray 3, and the material tray 3 with the blank coil is placed on the right end of the upper surface of the conveyor line 2. As the conveyor line 2 starts, the material tray 3 is transported to the left into the material table 1, and the blank coil in the material tray 3 is automatically transported to the upper material position 802 by the loading robot 4 for automatic loading. The rotating distribution disk 8 rotates intermittently clockwise under the drive of the reducer 6 and the servo motor 7, and the blank coil is transported to the position of the plug-in mechanism 9, and the plug-in mechanism 9 assembles the coil pins, and then the six-axis robot 10 clamps the blank coil with the pins assembled and conveys it to the injection molding machine 11, and the blank coil is injection-molded by the injection molding machine 11, so that the blank coil is coated with thermoplastic material, and the blank coil after injection molding is clamped and transferred to the unloading position 803 at the rear end by the six-axis robot 10, and the injection nozzle is disassembled by the nozzle clamp 1004 and placed in the nozzle conveying line 13, and is transferred to the inside of the crusher 14 through the nozzle conveying line 13 for crushing Recycling, the rotary distribution disk 8 continues to rotate, and the subsequent rough finished products are grabbed by the six-axis robot 10 and sent to the injection molding machine 11 for injection molding. The finished coil after injection molding moves to the bottom of the right conduction test mechanism 12 as the rotary distribution disk 8 rotates clockwise, and the guide tube test limit block 1204 is pushed downward by the limit push cylinder 1203, so that the card slot below the guide tube test limit block 1204 is in close contact with the coil, and the coil is reinforced, and then the two conduction probes 1202 are pushed toward the coil by two micro push cylinders 1201, so that the conduction probes 1202 on both sides are respectively in contact with the contact pins of the two rows of finished coils in the unloading position 803, and the finished coil is subjected to conduction detection. After the conduction detection is completed, the finished coil is transferred to the front end of the rotary distribution disk 8 as the rotary distribution disk 8 rotates, and the finished coil is grabbed by the unloading robot 5 and placed in the tray 3 on the left side above the conveyor line 2. As the conveyor line 2 rotates, the tray 3 with the finished coil is sent out, and the finished coil is collected manually.

[0033] In this article, there are a few points to note: 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0034] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0035] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. An injection molding device for manufacturing a solenoid valve coil, comprising: A material table (1), a conveyor line (2), a rotating distribution plate (8), a six-axis robot (10), and two injection molding machines (11), characterized in that a conveyor line (2) is installed above the material table (1), a material plate (3) is provided on the conveyor line (2), a loading robot (4) and a unloading robot (5) are installed above the material table (1) by screws, a reducer (6) is provided above the conveyor line (2), an input shaft of the reducer (6) is connected to a rotating shaft of a servo motor (7) through a coupling, and the upper end of the output shaft of the reducer (6) is connected to and drives the rotating distribution plate (8), the axis of the rotating distribution disk (8) is perpendicular to the upper surface of the material table (1), and four turntable carriers (801) are provided on the upper edge of the rotating distribution disk (8). A plug-in mechanism (9) and a conduction test mechanism (12) are installed above the conveyor line (2) through a bracket, and the plug-in mechanism (9) and the conduction test mechanism (12) are respectively located above the rear quadrant point and the right quadrant point of the rotating distribution disk (8). Two injection molding machines (11) are both located behind the material table (1), and the six-axis robot (10) is located between the two injection molding machines (11).

2. The injection molding device for manufacturing a solenoid valve coil according to claim 1, characterized in that: The conveyor line (2) is a belt conveyor. The right end of the conveyor line (2) is a blank feeding end (201), and the left end of the conveyor line (2) is a finished product discharging end (202). A conveyor drive motor (203) is provided at the bottom of the right end of the conveyor line (2). The conveyor drive motor (203) drives the rotating shaft at the right end of the conveyor line (2) to rotate counterclockwise.

3. The injection molding device for manufacturing a solenoid valve coil according to claim 2, characterized in that: A protective cover is provided above the material platform (1), and two openings are respectively provided at the left and right ends of the protective cover of the material platform (1), and the conveyor line (2) passes through the two openings of the protective cover transversely.

4. The injection molding device for manufacturing a solenoid valve coil according to claim 1, characterized in that: The loading robot (4) is a four-axis robot. The loading robot (4) is located on the rear right side of the conveyor line (2). A coil blank clamp (401) is installed at the end of the loading robot (4). A loading camera (402) is installed at the end of the loading robot (4).

5. The injection molding device for manufacturing a solenoid valve coil according to claim 1, characterized in that: The unloading robot (5) is a four-axis robot. The unloading robot (5) is located on the left side behind the conveyor line (2). A coil finished product clamp (501) is installed at the end of the unloading robot (5).

6. The injection molding device for manufacturing a solenoid valve coil according to claim 1, characterized in that: The rotating distribution disc (8) is driven by a reducer (6) and a servo motor (7) to rotate clockwise, and a material loading position (802) and a material loading position (803) are provided on the rotating disc carrier (801).

7. The injection molding device for manufacturing a solenoid valve coil according to claim 1, characterized in that: A robot gripper (1001) is mounted on the end of the six-axis robot (10) via bolts, and coil clamps (1002), injection molded product clamps (1003), and nozzle clamps (1004) are respectively arranged on three surfaces of the robot gripper (1001).

8. The injection molding device for manufacturing a solenoid valve coil according to claim 1, characterized in that: A pulverizer (14) is provided between the two injection molding machines (11), and a water inlet conveyor line (13) is provided above the feed inlet of the pulverizer (14), wherein the water inlet conveyor line (13) is an inclined roller conveyor belt.

9. The injection molding device for manufacturing a solenoid valve coil according to claim 1, characterized in that: A micro push cylinder (1201) is installed on the left and right sides of the bracket of the conduction test mechanism (12), respectively. The push rod of the micro push cylinder (1201) faces the center of the rotating distribution disk (8), and a conduction probe (1202) is provided at the end of the push rod of the micro push cylinder (1201).

10. The injection molding device for manufacturing a solenoid valve coil according to claim 9, characterized in that: A limit push cylinder (1203) is fixedly connected to the upper part of the bracket of the conduction test mechanism (12), a guide tube test limit block (1204) is fixedly connected to the lower end of the push rod of the limit push cylinder (1203), and a circular groove is provided on the lower surface of the guide tube test limit block (1204).

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