High-toughness key injection mold

Abstract

The utility model discloses a key injection mold with high toughness, which comprises a mold base and a lower mold table fixed at the top end of the mold base, a plurality of equidistant convex molds are arranged at the top end of the lower mold table, a portal frame is arranged on one side of the top end of the lower mold table in a sliding manner, and a three-axis moving module is arranged at the top end of the portal frame. A rotating air cylinder is installed at the Z-axis movable end of the three-axis moving module, a pneumatic clamping jaw is installed at the rotating end of the rotating air cylinder, and a gear and rack shifting structure is arranged at the top end of the lower die table. By means of accurate mechanical operation, it can be guaranteed that the key is smoothly taken down from the male die, damage or deformation of the key is avoided, the size precision and surface quality of a product are guaranteed, and in large-scale production, an automatic discharging structure can continuously and stably operate, high-efficiency productivity is kept, and unstable factors of manual operation are avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection mold technical field, concretely is a high tenacity button injection mold. BACKGROUND

[0002] High tenacity button is usually used in the product that needs long time use, wear resistance and strong impact resistance, such as electronic equipment, automobile parts etc. Therefore, its material selection and manufacturing process require that the mold can accurately and stably injection mold plastic material, ensure the quality and performance of product, and the injection mold structure of high tenacity button is complex, mainly including mold base, core and cavity, feeding system, cooling system and exhaust system and other key components. The mold base as the part of supporting main body is usually made of high-strength steel material, ensures the stability and durability of the mold in the injection molding process. The core and cavity are the key parts of forming product shape, require accurate machining to ensure the dimensional accuracy and surface quality of the molded product. The feeding system is responsible for conveying plastic material and controlling the temperature and pressure in the injection molding process, and the cooling system affects the injection molding cycle and molding quality. The present button injection mold after completing the cooling molding of workpiece, since the button workpiece is small and all is located on the male die of lower mold, at this time, the staff need to take down the button from the male die one by one, and in the process of manual operation, due to the intervention of human factors, it is easy to cause the damage or surface defect of button product, especially in the case of high requirement of button structure surface, the staff is difficult to avoid human damage or bad treatment, and thus leads to the decline of product quality. SUMMARY

[0003] The utility model discloses a kind of button injection molds of high tenacity, utilize stepper motor, gear rack displacement structure to make gantry, three-axis mobile module and pneumatic clamping jaw etc. Structure moves to the above of corresponding male die, and by three-axis mobile module, pneumatic clamping jaw is picked up to the button retained on male die, to complete the function of discharging, to solve the problem proposed in above background technique.

[0004] In order to achieve the above object, the utility model provides the following technical scheme: a kind of high toughness key injection mold, including mould base and the lower die table of mould base top fixed, and the lower die table top is equipped with several convex moulds of equal interval, the lower die table top one side is slidably installed portal frame, and the top of the portal frame is provided with three-axis movement module, the Z-axis movable end of the three-axis movement module is equipped with rotary cylinder, and the rotary end of the rotary cylinder is equipped with pneumatic gripper, the top of the lower die table is provided with rack and pinion displacement structure, the outer wall of the one side of the portal frame is equipped with stepper motor for driving portal frame to move by rack and pinion displacement structure X axis, the one side of the mould base surface is equipped with PLC control panel, and the output end of PLC control panel is electrically connected with the input end of stepper motor, three-axis movement module, rotary cylinder, pneumatic gripper.

[0005] Preferably, the rack and pinion displacement structure includes a helical rack mounted on one side edge of the lower die table top, and a driving helical gear mounted on the output end of the stepper motor, the driving helical gear and the helical rack are engaged with each other.

[0006] Preferably, the lower die table bottom of one side of the rack and pinion displacement structure is integrally formed with a lip plate, a T-shaped guide groove is provided on the outer wall of the side of the lip plate away from the lower die table, and a T-shaped block is mounted on the inner wall of one side of the portal frame and slidably fitted with the T-shaped guide groove.

[0007] Preferably, U-shaped cooling pipes are mounted on both sides of the lower die table.

[0008] Preferably, the three-axis movement module includes an X-axis cylinder mounted on one side of the portal frame top, a support table mounted on the top of the X-axis cylinder piston rod, a Y-axis double-rod cylinder mounted on the top of the support table, and a Z-axis double-rod cylinder mounted on the top of the Y-axis double-rod cylinder piston rod, a flat plate is mounted on the movable end of the Z-axis double-rod cylinder, and the rotary cylinder is mounted on the bottom end of the flat plate.

[0009] Preferably, the length of the lower die table is greater than the length of the mould base, and a U-shaped frame is integrally formed on the other side inner wall of the portal frame, and the U-shaped frame and one side edge of the lower die table are slidably fitted.

[0010] Compared with the prior art, the utility model has the beneficial effects that: the key injection mold with high toughness utilizes the cooperation of PLC control panel, stepper motor, three-axis movement module, pneumatic gripper and other structures to jointly complete the material taking and discharging operation of the key, compared with the operation of manually discharging the key one by one, through accurate mechanical operation, it can ensure that the key is smoothly taken off from the convex mold, avoid damage or deformation, ensure the size precision and surface quality of the product, and in large-scale production, the automatic discharging structure can also continuously and stably run, maintain high efficient capacity, and avoid unstable factors of manual operation. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0012] Figure 2 This is a side view of the structure of this utility model;

[0013] Figure 3 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0014] Figure 4 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0015] Figure 5 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 3 .

[0016] In the diagram: 1. Mold base; 2. Lower mold table; 201. Lip plate; 202. T-shaped guide groove; 3. Punch; 4. Gantry frame; 5. Stepper motor; 6. Gear and rack shifting structure; 7. Three-axis moving module; 701. X-axis cylinder; 702. Support platform; 703. Y-axis double-rod cylinder; 704. Z-axis double-rod cylinder; 705. Flat plate; 8. Rotary cylinder; 9. Pneumatic gripper; 10. PLC control panel. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0018] Please see Figures 1-5 The present invention provides an embodiment of a high-toughness button injection mold, including a mold base 1 and a lower mold platform 2 fixed at the top of the mold base 1, and a plurality of equally spaced punches 3 are installed at the top of the lower mold platform 2, and U-shaped cooling pipes are installed on both sides inside the lower mold platform 2.

[0019] A gantry frame 4 is slidably installed on one side of the top of the lower mold table 2, and a three-axis moving module 7 is set on the top of the gantry frame 4. A rotary cylinder 8 is installed on the Z-axis movable end of the three-axis moving module 7, and a pneumatic gripper 9 is installed on the rotating end of the rotary cylinder 8. The pneumatic gripper 9 can accurately and reliably clamp and release the formed button, and complete the button picking and unloading operation.

[0020] The top of the lower mold table 2 is provided with a gear and rack shifting structure 6. A stepper motor 5 is installed on one side of the outer wall of the gantry frame 4 to drive the gantry frame 4 to move in the X-axis through the gear and rack shifting structure 6. A PLC control panel 10 is installed on one side of the surface of the mold base 1. The output terminal of the PLC control panel 10 is electrically connected to the input terminal of the stepper motor 5, the three-axis moving module 7, the rotary cylinder 8, and the pneumatic gripper 9. The PLC control panel 10 serves as the control center of the entire system, responsible for receiving operation instructions, monitoring the production process, and controlling the operation of each execution component.

[0021] The gear rack shifting structure 6 includes a helical rack installed on one side edge of the top of the lower mold table 2, and an active helical gear installed at the output end of the stepper motor 5. The active helical gear and the helical rack mesh with each other. The PLC control panel 10 controls the rotation angle and speed of the stepper motor 5 through instructions and works in conjunction with the gear rack shifting structure 6. It can accurately control the X-axis position and motion trajectory of components such as the gantry 4 and the three-axis moving module 7.

[0022] The three-axis moving module 7 includes an X-axis cylinder 701 mounted on one side of the top of the gantry 4, a support platform 702 mounted on the top of the piston rod of the X-axis cylinder 701, a Y-axis double-rod cylinder 703 mounted on the top of the support platform 702, and a Z-axis double-rod cylinder 704 mounted on the top of the piston rod of the Y-axis double-rod cylinder 703. A plate 705 is mounted on the movable end of the Z-axis double-rod cylinder 704, and a rotary cylinder 8 is mounted on the bottom end of the plate 705. During the operation of the three-axis moving module 7, the X-axis cylinder 701 pushes the support platform 702, the Y-axis double-rod cylinder 703, the pneumatic gripper 9 and other components to move on the X-axis, while the Y-axis double-rod cylinder 703 and the Z-axis double-rod cylinder 704 control the position of the rotary cylinder 8 and the pneumatic gripper 9 on the Y-axis and Z-axis, respectively.

[0023] A lip plate 201 is integrally formed at the bottom end of the lower mold stage 2 on one side of the gear and rack shifting structure 6. A T-shaped guide groove 202 is provided on the outer wall of the lip plate 201 away from the lower mold stage 2. A T-shaped block that slides with the T-shaped guide groove 202 is installed on the inner wall of one side of the gantry frame 4. During the sliding process of the gantry frame 4, the lip plate 201 serves as the sliding guide for the gantry frame 4, and the sliding stability of the gantry frame 4 is improved by the T-shaped guide groove 202 and the T-shaped block on the inner wall of one side of the gantry frame 4.

[0024] The length of the lower mold platform 2 is greater than the length of the mold base 1. A U-shaped frame is integrally formed on the inner wall of the other side of the gantry frame 4. The U-shaped frame and one side of the lower mold platform 2 slide together.

[0025] In this embodiment, after the lower mold table separates from the upper mold, the cooled and formed workpiece will remain on the punch 3 at the top of the lower mold table 2. The operator then sends an operation command to the PLC control panel 10, which, according to a preset program and logic, issues corresponding control commands. The stepper motor 5 receives the control commands from the PLC control panel 10 and drives the gear and rack shifting structure 6 to move. The gear and rack shifting structure 6 causes the gantry 4, the three-axis moving module 7, the rotary cylinder 8, and other structures to move along the X-axis and the extension direction of the lower mold table 2 until the pneumatic gripper 9 moves above one of the punches 3. At this point, the three-axis moving module 7 can drive the pneumatic gripper 9 to move and position precisely along the X, Y, and Z directions, thereby achieving accurate positioning and material handling between the pneumatic gripper 9 and the punch 3. After the three-axis moving module 7 completes its operation, the rotary cylinder 8 controls the clamping angle of the pneumatic gripper 9. The pneumatic gripper 9 clamps the formed button and removes it from the punch 3 via the three-axis moving module 7. Then, the stepper motor 5 and the three-axis moving module 7 work again to move the clamped button to the designated position, completing the unloading operation. The coordinated operation of the PLC control panel 10, stepper motor 5, three-axis moving module 7, and pneumatic gripper 9 completes the button picking and unloading operation. Compared to manually removing the buttons one by one, precise mechanical operation ensures that the buttons are smoothly removed from the punch 3, avoiding damage or deformation, and guaranteeing the dimensional accuracy and surface quality of the product. In large-scale production, the automated unloading structure can also operate continuously and stably, maintaining high-efficiency production capacity and avoiding the instability factors of manual operation.

Claims

1. A high-toughness button injection mold, characterized in that: The system includes a mold base (1) and a lower mold platform (2) fixed to the top of the mold base (1). Several equally spaced punches (3) are mounted on the top of the lower mold platform (2). A gantry frame (4) is slidably mounted on one side of the top of the lower mold platform (2). A three-axis moving module (7) is provided at the top of the gantry frame (4). A rotary cylinder (8) is mounted on the Z-axis movable end of the three-axis moving module (7), and a pneumatic gripper (9) is mounted on the rotating end of the rotary cylinder (8). The lower mold... A gear and rack shifting structure (6) is provided at the top of the platform (2). A stepper motor (5) is installed on one side of the outer wall of the gantry (4) for driving the gantry (4) to move in the X-axis by means of the gear and rack shifting structure (6). A PLC control panel (10) is installed on one side of the surface of the mold base (1). The output end of the PLC control panel (10) is electrically connected to the input end of the stepper motor (5), the three-axis moving module (7), the rotary cylinder (8), and the pneumatic gripper (9).

2. The high-toughness button injection mold according to claim 1, characterized in that: The gear and rack shifting structure (6) includes a helical rack installed on one side edge of the top of the lower mold plate (2) and an active helical gear installed at the output end of the stepper motor (5). The active helical gear and the helical rack mesh with each other.

3. The high-toughness button injection mold according to claim 1, characterized in that: A lip plate (201) is integrally formed at the bottom end of the lower mold stage (2) on one side of the gear and rack shifting structure (6). A T-shaped guide groove (202) is provided on the outer wall of the lip plate (201) away from the lower mold stage (2). A T-shaped block that slides with the T-shaped guide groove (202) is installed on the inner wall of one side of the gantry frame (4).

4. The high-toughness button injection mold according to claim 1, characterized in that: U-shaped cooling pipes are installed on both sides inside the lower mold plate (2).

5. A high-toughness button injection mold according to claim 1, characterized in that: The three-axis moving module (7) includes an X-axis cylinder (701) installed on one side of the top of the gantry (4), a support platform (702) installed on the top of the piston rod of the X-axis cylinder (701), a Y-axis double rod cylinder (703) installed on the top of the support platform (702), and a Z-axis double rod cylinder (704) installed on the top of the piston rod of the Y-axis double rod cylinder (703). The movable end of the Z-axis double rod cylinder (704) is equipped with a plate (705), and the rotary cylinder (8) is installed at the bottom end of the plate (705).

6. The high-toughness button injection mold according to claim 1, characterized in that: The length of the lower mold platform (2) is greater than the length of the mold base (1). A U-shaped frame is integrally formed on the inner wall of the other side of the gantry frame (4). The U-shaped frame and one side of the lower mold platform (2) slide together.

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