Plastic bottle cap injection molding device

Abstract

The utility model relates to the technical field of injection molding devices, and discloses a plastic bottle cap injection molding device which solves the problem that an existing plastic bottle cap injection molding device cannot quickly and conveniently replace a male mold and a female mold. A supporting frame is fixedly installed on one side of the workbench, an air cylinder is fixedly installed on the top of the supporting frame, an upper installation box is fixedly installed at the transmission end of the air cylinder, a lower installation box is fixedly installed in the workbench, a positioning strip is fixedly installed on the upper portion of one side of the upper installation box, and an upper mold is arranged on the lower portion of the upper installation box. Inserting blocks are fixedly mounted on the sides, away from each other, of the upper mold and the lower mold, two clamping holes are formed in the two sides of each inserting block, and a supporting plate is fixedly mounted on the lower portion of one side of the upper mounting box; according to the plastic bottle cap injection molding device, the male mold and the female mold can be quickly and conveniently replaced, so that the machining efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of injection molding equipment, specifically a plastic bottle cap injection molding device. Background Technology

[0002] A plastic bottle cap injection molding machine is a specialized piece of equipment used to produce plastic bottle caps. It uses injection molding technology to inject molten plastic material into a mold, which then cools and solidifies to produce plastic bottle caps of specific shapes and sizes. Plastic bottle cap injection molding machines are widely used in the packaging fields of the food, beverage, cosmetics, and pharmaceutical industries. These industries have high requirements for both the quality and quantity of plastic bottle caps, and injection molding machines can meet these requirements, providing stable and reliable packaging materials for these industries. Plastic bottle caps come in many sizes and models, and processing different plastic bottle caps requires changing different injection molds. However, existing plastic bottle cap injection molding machines cannot quickly and easily change male and female molds, thus reducing processing efficiency. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, this utility model provides a plastic bottle cap injection molding device, which effectively solves the problem that the existing plastic bottle cap injection molding devices cannot quickly and conveniently change the male and female molds.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a plastic bottle cap injection molding device, comprising a worktable, a lower mold disposed at the center of the top of the worktable, a support frame fixedly mounted on one side of the worktable, a cylinder fixedly mounted on the top of the support frame, an upper mounting box fixedly mounted on the transmission end of the cylinder, a lower mounting box fixedly mounted inside the worktable, a positioning strip fixedly mounted on the upper part of one side of the upper mounting box, an upper mold disposed at the lower part of the upper mounting box, and insert blocks fixedly mounted on the sides of the upper mold and the lower mold that are far apart from each other, with two locking holes on both sides of each insert block, and a fixed... A support plate is installed, and a drive motor is fixedly installed on the top of the support plate. The upper and lower mounting boxes each have four locking rods inside. A drive gear is fixedly installed at the output end of the drive motor. A driven gear is meshed with one side of the drive gear. A sleeve is fixedly installed at the bottom of the driven gear. A limiting sleeve is fitted on the surface of the sleeve. The surface of the limiting sleeve is fixedly connected to the support frame through a connecting rod. A rectangular rod is movably inserted into the inside of the sleeve. A transmission component is provided at the ends of the sleeve and the rectangular rod that are far apart from each other. The transmission component is connected to the eight locking rods. When the sleeve and the rectangular rod rotate, the power is output to the eight locking rods through the transmission component.

[0005] Preferably, the transmission assembly includes two driving sprockets and two driven sprockets. The two driving sprockets are rotatably mounted on the lower side of the positioning bar and one side of the bottom of the lower mounting box, respectively. The sides of the two driving sprockets that are close to each other are fixedly connected to the driven gear and the rectangular rod, respectively. The two driven sprockets are rotatably mounted in the middle of the top and the middle of the bottom of the upper and lower mounting boxes, respectively. Chains are meshed between the two driving sprockets and the two driven sprockets.

[0006] Preferably, a turntable is fixedly installed on the side of each of the two driven sprockets that are close to each other, and two transmission bars are rotatably installed on the side of each of the two turntables that are close to each other.

[0007] Preferably, each of the four transmission bars has a sliding sleeve rotatably mounted on one end, and a sliding rod is inserted between the interiors of two adjacent sliding sleeves. The two ends of the two sliding rods are fixedly connected to the inner walls of the upper and lower mounting boxes, respectively. Each of the sliding sleeves has a connecting strip fixedly mounted on one side, and the two ends of the four connecting strips near the insert block are fixedly connected to eight locking rods, respectively.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows: When changing the mold, the operator starts the drive motor to run in the forward direction. When the drive motor runs in the forward direction, it drives the active gear to rotate. When the active gear rotates, it drives the sleeve and rectangular rod to rotate through the driven gear. When the driven gear and rectangular rod rotate, they drive the two active sprockets to rotate. When the two active sprockets rotate, they drive the two driven sprockets to rotate through the two chains. When the two driven sprockets rotate, they drive the two turntables to rotate. When the two turntables rotate, they push the two sliding sleeves to move in opposite directions along the surface of the sliding rod through the two transmission bars on one side. When the sliding sleeves move, they drive the eight locking rods to disengage from the eight locking holes on the two inserts through the connecting bars, releasing the limit. This allows the operator to quickly disassemble the upper mold and the lower mold.

[0009] The operator then inserts the two inserts from the new upper and lower molds into the upper and lower mounting boxes, respectively. Next, the operator starts the drive motor in reverse, causing eight locking rods to insert into eight locking holes for positioning, thus quickly completing the mold replacement. After the mold is replaced, the operator drives the cylinder to move the upper mounting box downwards. This downward movement causes the upper mold to move downwards and combine with the lower mold, simultaneously moving the sleeve down along the surface of the rectangular rod. After the upper and lower molds are combined, the operator uses external equipment to inject molten plastic through the injection valve on one side of the upper mold into the cavity between the upper and lower molds for bottle cap injection molding. This allows the plastic bottle cap injection molding device to quickly and conveniently change male and female molds, thereby improving processing efficiency. Attached Figure Description

[0010] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0011] In the attached diagram:

[0012] Figure 1 This is a schematic diagram of the plastic bottle cap injection molding device of this utility model. Figure 1 ;

[0013] Figure 2 This is a schematic diagram of the plastic bottle cap injection molding device of this utility model. Figure 2 ;

[0014] Figure 3 This is a schematic diagram of the internal structure of the upper and lower mounting boxes of this utility model;

[0015] Figure 4 This is a schematic diagram of the driving sprocket and driven sprocket of this utility model;

[0016] Figure 5 This utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0017] In the diagram: 1. Workbench; 2. Lower mold; 3. Support frame; 4. Cylinder; 5. Upper mounting box; 6. Upper mold; 7. Insert block; 8. Locking hole; 9. Support plate; 10. Drive motor; 11. Locking rod; 12. Drive gear; 13. Driven gear; 14. Sleeve; 15. Limiting sleeve; 16. Rectangular rod; 17. Connecting rod; 18. Positioning bar; 19. Drive sprocket; 20. Chain; 21. Driven sprocket; 22. Turntable; 23. Transmission bar; 24. Sliding sleeve; 25. Sliding rod; 26. Connecting bar; 27. Lower mounting box. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all 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 protection scope of the present utility model.

[0019] Depend on Figures 1 to 5The present invention includes a workbench 1, a lower mold 2 at the center of the top of the workbench 1, a support frame 3 fixedly installed on one side of the workbench 1, a cylinder 4 fixedly installed on the top of the support frame 3, an upper mounting box 5 fixedly installed on the transmission end of the cylinder 4, a lower mounting box 27 fixedly installed inside the workbench 1, a positioning strip 18 fixedly installed on the upper part of one side of the upper mounting box 5, an upper mold 6 at the lower part of the upper mounting box 5, and insert blocks 7 fixedly installed on the sides of the upper mold 6 and the lower mold 2 that are far apart from each other. Two locking holes 8 are opened on both sides of the two insert blocks 7, a support plate 9 fixedly installed on the lower part of one side of the upper mounting box 5, a drive motor 10 fixedly installed on the top of the support plate 9, and four locking rods 11 are provided inside the upper mounting box 5 and the lower mounting box 27.

[0020] The operator drives cylinder 4 to move the upper mounting box 5 downward. When the upper mounting box 5 moves downward, it will move the upper mold 6 downward and combine with the lower mold 2. After the upper mold 6 and the lower mold 2 are combined, the operator uses external equipment to inject molten plastic into the mold cavity between the upper mold 6 and the lower mold 2 through the injection valve on one side of the upper mold 6 to perform injection molding of the bottle cap.

[0021] A drive gear 12 is fixedly installed at the output end of the drive motor 10. A driven gear 13 is meshed with one side of the drive gear 12. A sleeve 14 is fixedly installed at the bottom of the driven gear 13. A limiting sleeve 15 is fitted on the surface of the sleeve 14. The surface of the limiting sleeve 15 is fixedly connected to the support frame 3 through a connecting rod 17. A rectangular rod 16 is movably inserted into the inside of the sleeve 14. When the upper mold 6 moves down, it will also drive the sleeve 14 to move down along the surface of the rectangular rod 16. A transmission component is provided at the ends of the sleeve 14 and the rectangular rod 16 that are far apart from each other. The transmission component is connected to eight clamping rods 11. When the sleeve 14 and the rectangular rod 16 rotate, they both output power to the eight clamping rods 11 through the transmission component.

[0022] When changing molds, the operator starts the drive motor 10 to run in the forward direction. When the drive motor 10 runs in the forward direction, it drives the drive gear 12 to rotate. When the drive gear 12 rotates, it drives the sleeve 14 and the rectangular rod 16 to rotate through the driven gear 13. When the driven gear 13 and the rectangular rod 16 rotate, they drive the transmission assembly to run. When the transmission assembly runs, it drives the eight locking rods 11 to disengage from the eight locking holes 8 on the two insert blocks 7, releasing the limit. This allows the operator to quickly disassemble the upper mold 6 and the lower mold 2.

[0023] Then, the operator inserts the two inserts 7 on the new upper mold 6 and the new lower mold 2 into the upper mounting box 5 and the lower mounting box 27 respectively. Immediately afterwards, the operator starts the drive motor 10 to run in reverse. When the drive motor 10 runs in reverse, it drives the eight locking rods 11 to insert into the eight locking holes 8 for limiting, thereby quickly completing the replacement.

[0024] The transmission assembly includes two drive sprockets 19 and two driven sprockets 21. The two drive sprockets 19 are rotatably mounted on the lower side of the positioning bar 18 and one side of the bottom of the lower mounting box 27, respectively. The sides of the two drive sprockets 19 that are close to each other are fixedly connected to the driven gear 13 and the rectangular rod 16, respectively. The two driven sprockets 21 are rotatably mounted in the middle of the top and the middle of the bottom of the upper mounting box 5 and the lower mounting box 27, respectively. Chains 20 are meshed between the two drive sprockets 19 and the two driven sprockets 21. Turntables 22 are fixedly mounted on the sides of the two driven sprockets 21 that are close to each other. Two transmission bars 23 are rotatably mounted on the sides of the two turntables 22 that are close to each other.

[0025] Each of the four transmission bars 23 has a sliding sleeve 24 rotatably mounted on one end. A sliding rod 25 is inserted between the interiors of two adjacent sliding sleeves 24. The two ends of the two sliding rods 25 are fixedly connected to the inner walls of the upper mounting box 5 and the lower mounting box 27, respectively. A connecting strip 26 is fixedly mounted on one side of each sliding sleeve 24. The two ends of the four connecting strips 26 near the insert block 7 are fixedly connected to eight locking rods 11, respectively.

[0026] When the two driving sprockets 19 rotate, they drive the two driven sprockets 21 to rotate via the two chains 20. When the two driven sprockets 21 rotate, they drive the two turntables 22 to rotate. When the two turntables 22 rotate, they drive the two sliding sleeves 24 to move in opposite directions or towards each other along the surface of the sliding rod 25 via the two transmission bars 23 on one side. When the sliding sleeves 24 move, they drive the eight locking rods 11 to exit or insert into the eight locking holes 8 on the two insert blocks 7 via the connecting bar 26 to release or limit the movement.

Claims

1. A plastic bottle cap injection molding apparatus, comprising a worktable (1), characterized in that: The workbench (1) has a lower mold (2) at the top center. A support frame (3) is fixedly installed on one side of the workbench (1). A cylinder (4) is fixedly installed on the top of the support frame (3). An upper mounting box (5) is fixedly installed on the transmission end of the cylinder (4). A lower mounting box (27) is fixedly installed inside the workbench (1). A positioning strip (18) is fixedly installed on the upper part of one side of the upper mounting box (5). An upper mold (6) is provided at the lower part of the upper mounting box (5). Insert blocks (7) are fixedly installed on the sides of the upper mold (6) and the lower mold (2) that are far apart from each other. Two locking holes (8) are opened on both sides of the two insert blocks (7). A support plate (9) is fixedly installed on the lower part of one side of the upper mounting box (5). A drive motor (10) is fixedly installed on the top of the support plate (9). 5) and the lower mounting box (27) are equipped with four locking rods (11). The output end of the drive motor (10) is fixedly installed with a drive gear (12). A driven gear (13) is meshed on one side of the drive gear (12). A sleeve (14) is fixedly installed at the bottom of the driven gear (13). A limiting sleeve (15) is fitted on the surface of the sleeve (14). The surface of the limiting sleeve (15) is fixedly connected to the support frame (3) through a connecting rod (17). A rectangular rod (16) is movably inserted into the inside of the sleeve (14). A transmission component is provided at the ends of the sleeve (14) and the rectangular rod (16) that are far apart from each other. The transmission component is connected to the eight locking rods (11) in a transmission manner. When the sleeve (14) and the rectangular rod (16) rotate, the power is output to the eight locking rods (11) through the transmission component.

2. The plastic bottle cap injection molding device according to claim 1, characterized in that: The transmission assembly includes two drive sprockets (19) and two driven sprockets (21). The two drive sprockets (19) are rotatably mounted on the lower side of the positioning bar (18) and one side of the bottom of the lower mounting box (27). The sides of the two drive sprockets (19) that are close to each other are fixedly connected to the driven gear (13) and the rectangular rod (16), respectively. The two driven sprockets (21) are rotatably mounted in the middle of the top and the middle of the bottom of the upper mounting box (5) and the lower mounting box (27), respectively. A chain (20) is meshed between the two drive sprockets (19) and the two driven sprockets (21).

3. The plastic bottle cap injection molding apparatus according to claim 2, characterized in that: A turntable (22) is fixedly installed on one side of each of the two driven sprockets (21) that are close to each other, and two transmission bars (23) are rotatably installed on one side of each of the two turntables (22) that are close to each other.

4. The plastic bottle cap injection molding apparatus according to claim 3, characterized in that: Each of the four transmission bars (23) has a sliding sleeve (24) rotatably mounted on one end. A sliding rod (25) is inserted between the interiors of two adjacent sliding sleeves (24). The two ends of the two sliding rods (25) are fixedly connected to the inner walls of the upper mounting box (5) and the lower mounting box (27) respectively. A connecting strip (26) is fixedly mounted on one side of each sliding sleeve (24). The two ends of the four connecting strips (26) near the insert block (7) are fixedly connected to eight locking rods (11) respectively.

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