Positioning tool jig for injection molding of keyboard cap

Abstract

The utility model relates to the technical field of injection molding, and discloses a keyboard cap injection molding positioning tool jig which comprises a base, an installation frame is fixedly connected to the middle of the upper surface of the base, a motor is fixedly connected to the top of the installation frame, and the output end of the motor is in transmission connection with a lead screw. The motor is arranged to drive the lead screw to rotate and drive the injection molding device to move up and down, an injection molding head can be rapidly and accurately positioned to the position where injection molding is needed, the adjusting time is shortened, the injection molding efficiency is improved, the electric push rod in the clamping frame pushes the clamping plate to clamp a keyboard cap blank, and therefore the keyboard cap blank can be rapidly and accurately positioned. The keyboard cap injection molding device is simple in structure, firm in fixation and free of frequent adjustment in the injection molding process, injection molding continuity is guaranteed, and therefore the overall production efficiency is improved, the injection molding process is more accurate through limiting of the limiting rod on the injection molding device and accurate control of the position of the injection molding head by the motor, and the injection molding size and shape accuracy of keyboard caps can be guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of injection molding technology, and in particular to a positioning fixture for injection molding of keyboard caps. Background Technology

[0002] In modern manufacturing, injection molding is a widely used molding process, especially in the manufacturing of electronic device components, such as keyboard caps. With the rapid development and widespread use of electronic products, the demand for keyboard caps is constantly increasing, placing higher requirements on production processes in terms of both quantity and quality.

[0003] In traditional keyboard cap injection molding, precise and efficient methods are often lacking for positioning the injection head. Typically, rudimentary mechanical structures or adjustments based on worker experience are used. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a positioning fixture for keyboard cap injection molding.

[0005] This utility model is achieved by the following technical solution: a positioning fixture for keyboard cap injection molding, including a base, an installation frame fixedly connected to the middle of the upper surface of the base, a motor fixedly connected to the top of the installation frame, a lead screw connected to the output end of the motor, and an injection molding device sleeved on the outer surface of the lead screw.

[0006] The injection molding device includes a movable block, a connecting rod fixedly connected to the front end of the movable block, a diagonal brace fixedly connected to the bottom of the connecting rod, a controller fixedly connected to the front end of the connecting rod, an A-pipe connector opened on one side of the controller, and an injection head fixedly connected to the bottom of the controller.

[0007] Through the above technical solution, this structure connects the injection molding device to the motor via a lead screw, realizing precise control of the injection molding device and accurately positioning the position to be injected. This helps to improve the injection accuracy of keyboard caps. The entire injection molding device has a compact structure and the various components are closely connected, which helps to ensure the stability of the injection molding process.

[0008] As a further improvement to the above solution, a limiting rod is fixedly connected to the bottom of the mounting frame, and the limiting rod is adapted to the injection molding device.

[0009] The above technical solution further improves the stability of the injection molding device's movement, ensuring that the injection head can accurately reach the predetermined injection position, thereby improving the quality and precision of keyboard cap injection molding and reducing defective products caused by inaccurate injection position.

[0010] As a further improvement to the above solution, a material box is fixedly connected to one side of the upper surface of the base.

[0011] The above technical solution provides a container for storing raw materials in the injection molding process, which facilitates the addition and management of raw materials, enabling the entire injection molding process to continue continuously without the need for frequent external replenishment of raw materials, thus improving the efficiency of injection molding.

[0012] As a further improvement to the above solution, a feeding port is provided in the middle of the upper surface of the material box, and a B-pipe connector is provided on one side of the material box.

[0013] Through the above technical solution, the design of the feeding port makes it convenient to add raw materials. The connection method of the B pipe joint, the feed pipe and the A pipe joint ensures that the raw materials can be stably transported from the material box to the injection head, thus ensuring the continuity and stability of the raw material supply during the injection molding process.

[0014] As a further improvement to the above solution, the output end of the B-pipe connector is fixedly connected to a material inlet pipe, which is connected to the A-pipe connector.

[0015] Through the above technical solution, this connection method establishes a raw material transmission channel from the material box to the injection head, ensuring a smooth path for raw material supply, which helps to stabilize the raw material flow during the injection molding process, thereby improving the quality of keyboard cap injection molding.

[0016] As a further improvement to the above solution, a clamping frame is fixedly connected to the other side of the upper surface of the base.

[0017] The above technical solution can stably fix the keyboard cap blank, prevent the blank from moving during the injection molding process, and ensure the accuracy and quality of injection molding. The structure of the electric actuator and clamping plate can be adjusted according to keyboard cap blanks of different sizes, which improves the versatility of tooling fixtures.

[0018] As a further improvement to the above solution, electric push rods are fixedly connected to both sides of the inner wall of the clamping frame, and clamping plates are fixedly connected to the front ends of the electric push rods.

[0019] The above technical solution enables reliable clamping and releasing of keyboard cap blanks. The operation is convenient and quick, and the clamping force can be flexibly adjusted according to different processing requirements. This ensures the stability of the blank during injection molding and facilitates the loading and unloading of the blank.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] This invention utilizes a motor-driven lead screw to rotate, which in turn moves the injection molding device up and down. This allows for quick and accurate positioning of the injection head to the desired injection location, reducing adjustment time and improving injection efficiency. An electric push rod within the clamping frame pushes the clamping plate to firmly hold the keyboard cap blank in place, eliminating the need for frequent adjustments during injection and ensuring continuous injection, thus improving overall production efficiency. Limiting the injection molding device with a limiting rod and precisely controlling the injection head position with the motor further enhances precision, ensuring the dimensional and shape accuracy of the keyboard caps and reducing defective products. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a side view of the structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the rear structure of the present invention;

[0025] Figure 4 This is a schematic diagram of the installation frame structure of this utility model;

[0026] Figure 5 This is a schematic diagram of the injection molding device of this utility model.

[0027] Explanation of key symbols:

[0028] 1. Base; 2. Mounting frame; 3. Motor; 4. Lead screw; 5. Injection molding device; 501. Moving block; 502. Connecting rod; 503. Diagonal brace; 504. Controller; 505. A-pipe connector; 506. Injection head; 6. Limiting rod; 7. Material box; 8. Feed port; 9. B-pipe connector; 10. Feed pipe; 11. Clamping frame; 12. Electric actuator; 13. Clamping plate. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0030] Example:

[0031] Please combine Figure 1-5 This embodiment of a keyboard cap injection molding positioning fixture includes a base 1, an installation frame 2 fixedly connected to the middle of the upper surface of the base 1, a motor 3 fixedly connected to the top of the installation frame 2, a lead screw 4 driven by the output end of the motor 3, and an injection molding device 5 sleeved on the outer surface of the lead screw 4.

[0032] The injection molding device 5 includes a moving block 501. A connecting rod 502 is fixedly connected to the front end of the moving block 501. A diagonal brace 503 is fixedly connected to the bottom of the connecting rod 502. A controller 504 is fixedly connected to the front end of the connecting rod 502. An A-pipe connector 505 is provided on one side of the controller 504. An injection head 506 is fixedly connected to the bottom of the controller 504. The motor 3 serves as the power source. When the motor 3 starts, its output end drives the lead screw 4 to rotate. Since the lead screw 4 is sleeved with the injection molding device 5, the rotation of the lead screw 4 will drive the injection molding device 5 to move up and down on the lead screw 4. The up and down direction is determined by the thread direction of the lead screw 4. The moving block 501 in the injection molding device 5 moves with the lead screw 4. The diagonal brace 503 connected by the connecting rod 502 plays a role in supporting and stabilizing the structure. The controller 504 can control the injection process. The A-pipe connector 505 is used to connect the material source. The injection head 506 is the component that injects the raw material into a specific position for keyboard cap injection molding.

[0033] The bottom of the mounting frame 2 is fixedly connected to a limiting rod 6. The limiting rod 6 is adapted to the injection molding device 5. When the injection molding device 5 moves up and down under the drive of the lead screw 4, the limiting rod 6 restricts the direction of movement of the injection molding device 5 and prevents the injection molding device 5 from deviating or shaking during the movement.

[0034] A material box 7 is fixedly connected to one side of the upper surface of the base 1. The material box 7 is used to store the raw materials required for keyboard cap injection molding. The material inlet 8 makes it convenient to add raw materials into the material box 7. The B-pipe connector 9 is the interface for leading out the raw materials in the material box 7.

[0035] A feeding port 8 is provided in the middle of the upper surface of the material box 7, and a B pipe connector 9 is provided on one side of the material box 7. The feeding port 8 serves as the inlet for the raw material to enter the material box 7, making it convenient for the staff to add the raw material into the material box 7. The B pipe connector 9 leads out the raw material in the material box 7 and, through connection with the feeding pipe 10, transports the raw material to the A pipe connector 505 of the injection molding device 5, thereby providing raw material for the injection head 506.

[0036] The output end of pipe B 9 is fixedly connected to a material feeding pipe 10, which is connected to pipe A 505. During the injection molding process, the raw material in the material box 7 flows through pipe B 9 and material feeding pipe 10 to pipe A 505, and then reaches the injection head 506, thus realizing the transmission and supply of raw materials.

[0037] A clamping frame 11 is fixedly connected to the other side of the upper surface of the base 1. The clamping frame 11 is used to fix the keyboard cap blank or other related parts that need to be injection molded. Electric push rods 12 are fixedly connected to both sides of the inner wall. When the electric push rods 12 are started, they will push the clamping plate 13 at the front end to move to the middle, thereby clamping the keyboard cap blank in the clamping frame 11.

[0038] Electric push rods 12 are fixedly connected to both sides of the inner wall of the clamping frame 11. A clamping plate 13 is fixedly connected to the front end of the electric push rod 12. The electric push rod 12 pushes the clamping plate 13 to move within the clamping frame 11. When it is necessary to clamp the keyboard cap blank, the electric push rod 12 extends, so that the clamping plate 13 approaches and clamps the blank. When the processing is completed and the blank needs to be removed, the electric push rod 12 shortens and releases the clamping plate 13.

[0039] The implementation principle of the keyboard cap injection molding positioning fixture in this embodiment is as follows: Motor 3 is located at the top of mounting frame 2. When motor 3 starts, the output end drives the lead screw 4 to rotate. The outer surface of the lead screw 4 is sleeved with the injection molding device 5. Due to the rotation of the lead screw 4, the moving block 501 in the injection molding device 5 will move up and down along the lead screw 4, achieving vertical positioning of the injection head 506. The limiting rod 6 at the bottom of the mounting frame 2 is adapted to the injection molding device 5. During the movement of the injection molding device 5, the limiting rod 6 restricts its movement direction, preventing the injection molding device 5 from shifting or shaking, ensuring that the injection head 506 can accurately reach the predetermined injection position. The material box 7 on one side of the upper surface of the base 1 is used to store injection molding raw materials, and the feeding port 8 at its top facilitates the addition of raw materials. The material box 7 has a B-pipe connector 9 on one side connected to the feed pipe 10. The feed pipe 10 is connected to the A-pipe connector 505 on the controller 504 of the injection molding device 5. During the injection molding process, the raw material in the material box 7 reaches the injection head 506 through the B-pipe connector 9, the feed pipe 10, and the A-pipe connector 505, achieving a stable supply of raw material. The clamping frame 11 on the other side of the upper surface of the base 1 is used to fix workpieces such as keyboard cap blanks. When the electric push rods 12 on both sides of the inner wall of the clamping frame 11 are activated, they push the clamping plate 13 at the front end to move towards the middle, thereby clamping the workpiece. The structure of the electric push rods 12 and the clamping plate 13 can be adjusted according to workpieces of different sizes to ensure the stability of the workpiece during the injection molding process and improve the versatility of the tooling fixture.

[0040] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A positioning fixture for keyboard cap injection molding, characterized in that, Includes a base (1), a mounting frame (2) is fixedly connected to the middle of the upper surface of the base (1), a motor (3) is fixedly connected to the top of the mounting frame (2), a lead screw (4) is driven to the output end of the motor (3), and an injection molding device (5) is sleeved on the outer surface of the lead screw (4). The injection molding device (5) includes a moving block (501), a connecting rod (502) is fixedly connected to the front end of the moving block (501), a diagonal brace (503) is fixedly connected to the bottom of the connecting rod (502), a controller (504) is fixedly connected to the front end of the connecting rod (502), an A-pipe connector (505) is provided on one side of the controller (504), and an injection head (506) is fixedly connected to the bottom of the controller (504).

2. The positioning fixture for keyboard cap injection molding as described in claim 1, characterized in that: The bottom of the mounting frame (2) is fixedly connected to a limiting rod (6), which is adapted to the injection molding device (5).

3. The positioning fixture for keyboard cap injection molding as described in claim 1, characterized in that: A material box (7) is fixedly connected to one side of the upper surface of the base (1).

4. The positioning fixture for keyboard cap injection molding as described in claim 3, characterized in that: A feeding port (8) is provided in the middle of the upper surface of the material box (7), and a B-pipe connector (9) is provided on one side of the material box (7).

5. The positioning fixture for keyboard cap injection molding as described in claim 4, characterized in that: The output end of the B-pipe connector (9) is fixedly connected to the feed pipe (10), and the feed pipe (10) is connected to the A-pipe connector (505).

6. The positioning fixture for keyboard cap injection molding as described in claim 3, characterized in that: A clamping frame (11) is fixedly connected to the other side of the upper surface of the base (1).

7. The positioning fixture for keyboard cap injection molding as described in claim 6, characterized in that: Electric push rods (12) are fixedly connected to both sides of the inner wall of the clamping frame (11), and a clamping plate (13) is fixedly connected to the front end of the electric push rods (12).

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