A plastic bottle cap injection molding mold

Abstract

The present invention relates to the technical field of injection molding dies, and proposes a plastic bottle cap injection molding die, comprising a fixed die and a movable die, wherein a centralized injection molding component is arranged in the fixed die, and further comprising a bottle cap molding component, a water injection cooling component and a centralized drainage component. The number of bottle cap molding components is set to multiple, and multiple bottle cap molding components located in the same row are set to one group. The bottle cap molding component is arranged through the movable die, and a centralized rotating component is arranged between the multiple bottle cap molding components located in the same group. A water injection cooling component is arranged in the bottle cap molding component, and the water injection cooling component is used to cool the plastic melt in the bottle cap molding component. A centralized drainage component is arranged between the multiple water injection cooling components, and the centralized drainage component is arranged in the movable die. Through the above technical solution, the inconvenience problem of the plastic molding die in the prior art during actual use and in the plastic bottle cap tray process is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of injection molding dies, and in particular to an injection molding dies for plastic bottle caps. Background Art

[0002] Plastic bottle caps are components used to seal plastic bottles in the prior art. The production and molding method of plastic bottle caps is to first add the mixed plastic raw materials into an injection molding machine, then use the injection molding machine to heat the plastic raw materials until the plastic raw materials are heated to a molten state, and then the plastic bottle caps are injected into a plastic bottle cap molding mold by the injection molding machine. After being fully cooled and formed in the molding mold, the plastic bottle caps are removed from the molding mold by rotating the middle molding mold sleeve in the direction, and then after some cutting operations on the plastic bottle caps, the plastic bottle caps are installed on the filled plastic bottles.

[0003] The molding mold in the prior art includes a fixed mold and a movable mold. The fixed mold is connected to the injection molding machine. The plastic melt discharged by the injection molding machine will enter the multiple filling chambers in the fixed mold, and the movable mold is provided with multiple rotatable molding mold sleeves. The molding mold sleeves and the filling chambers correspond one to one. The plastic melt discharged from the filling chamber will enter the molding mold sleeve. During the circulation of cooling water in the cooling water channel, the plastic melt is cooled and shaped in the molding mold sleeve. Then the fixed mold and the movable mold are separated, and the molding mold is rotated to eject the plastic bottle cap from the molding mold sleeve to complete the injection molding operation of the plastic bottle cap.

[0004] However, in actual use of the molding mold in the prior art, in order to ensure that the plastic bottle caps are smoothly demoulded from the molding mold, it is first necessary to ensure that the plastic bottle caps are molded during a sufficiently long cooling time. During the circulation cooling process, the cooling water channels in the prior art mostly cool the molding mold sleeve through the outside. When the plastic bottle caps are smoothly removed from the molding mold sleeve, the main force point of the plastic bottle caps is at the internal thread of the plastic bottle caps. If the inner wall of the plastic bottle caps cannot be sufficiently cooled, the plastic bottle caps may be deformed due to the rotation of the molding mold sleeve during the removal process. Moreover, when the plastic bottle caps located on the movable mold are demoulded as a whole, multiple plastic bottle caps may fall and scatter, which makes it inconvenient to subsequently classify and transport the multiple plastic bottle caps. Summary of the Invention

[0005] The present invention provides a plastic bottle cap injection molding die, which solves the inconvenience problem that the injection molding die in the prior art has during actual use and during the plastic bottle cap tray process.

[0006] The technical solution of the present invention is as follows: A plastic bottle cap injection molding mold, comprising a fixed mold and a movable mold, wherein a centralized injection molding component is provided in the fixed mold, and further comprising:

[0007] A bottle cap forming assembly, wherein the number of the bottle cap forming assemblies is set to be multiple, and the multiple bottle cap forming assemblies located in the same row are set to be a group, the bottle cap forming assembly is arranged through the movable mold, and a centralized rotating assembly is provided between the multiple bottle cap forming assemblies located in the same group;

[0008] A water injection cooling assembly is provided in the bottle cap molding assembly and is used to cool the plastic melt in the bottle cap molding assembly;

[0009] A centralized drainage assembly is provided between the plurality of water injection cooling assemblies and is provided in the movable mold;

[0010] A plurality of guide and discharge assemblies are provided between the fixed mold and the movable mold, and the guide and discharge assemblies are provided on the lower side of the corresponding plurality of bottle cap molding assemblies.

[0011] In order to complete the injection molding operation of the plastic melt, further, the centralized injection molding assembly includes an injection molding cylinder and an injection molding tube. The number of the injection molding cylinders is set to multiple, and the injection molding cylinders correspond one to one to the bottle cap molding assembly. The multiple injection molding cylinders are fixedly connected to the fixed mold, and the multiple injection molding cylinders located in the same row are connected to each other. The multiple injection molding cylinders on one side are connected to the injection molding tube, and the injection molding tube passes through the fixed mold.

[0012] In order to mold the plastic melt into a plastic bottle cap, the bottle cap molding assembly further includes a molding mold sleeve and a rotating cylinder. The movable mold is provided with an accommodating cavity corresponding to the molding mold. The molding mold is fixedly connected in the accommodating cavity. The molding mold sleeve is connected with the rotating cylinder through, and the rotating cylinder is fixedly connected with a threaded cylinder. The outer wall of the threaded cylinder is provided with a threaded section.

[0013] In order to drive the rotation of multiple rotating cylinders in the same row, the centralized rotating assembly further includes a transmission gear, a transmission tooth plate and a sliding rod. The transmission gear is fixedly sleeved on the rotating cylinder, and a transmission tooth plate is meshed between the multiple transmission gears in the same row. A sliding groove is provided on one side of the transmission tooth plate, and the sliding rod is fixedly connected to the inner wall of the movable mold, and the sliding rod is slidably connected to the sliding groove.

[0014] In order to connect the external device to the transmission gear plate, based on the above solution, a connecting seat is fixedly connected to the side of the transmission gear plate away from the sliding rod, and mounting openings are opened on the movable mold corresponding to the multiple connecting seats.

[0015] In order to add cold water into the threaded cylinder and quickly cool the plastic melt in the molding die sleeve, on the basis of this scheme, the water injection cooling assembly includes a water injection pipe, a cooling cylinder and a rotating water supply structure. The water injection pipe extends into the rotating cylinder, and the water injection pipe is connected to the rotating cylinder through multiple water injection filter layers. The cooling cylinder is fixedly connected to the threaded cylinder, and the cooling cylinder is fitted with the inner wall of the threaded cylinder. Multiple water adding pipes are connected between the water injection pipe and the inner wall of the cooling cylinder, and the rotating water supply structure is provided between the multiple water injection pipes in the same row.

[0016] In order to discharge the cooled water in time and realize the rapid circulation of cooling water, on the basis of this scheme, the centralized drainage component further includes a water storage cylinder, a leakage hole and a drainage pipe. The number of the water storage cylinders is set to multiple, and the water storage cylinders correspond to the forming mold sleeves one by one. The water storage cylinder is fixedly connected to the inner wall of the movable mold, and one side of the forming mold sleeve is located in the water storage cylinder. The multiple water storage cylinders in the same row are connected. A plurality of leakage holes are opened on the circumference of the cooling cylinder. The drainage pipes are fixedly connected to both sides of the interior of the movable mold. The bottom of the drainage pipe extends from the bottom of the movable mold, and the water storage cylinders located on both sides are connected to the drainage pipes.

[0017] In order to add water to the rotating water injection pipe, on the basis of the above-mentioned scheme, the rotating water supply structure further includes a rotating ring sleeve, a water inlet pipe and a delivery pipeline. The rotating ring sleeve is rotatably arranged on one side of the water injection pipe, and the inner side of the rotating ring sleeve is fixedly connected to the water inlet pipe. The water inlet pipe extends into the water injection pipe. The delivery pipeline is connected between multiple water inlet pipes located in the same row. The delivery pipeline is fixedly connected to the movable mold, and the delivery pipeline extends from the movable mold.

[0018] In order to guide the falling direction of the plastic bottle cap after demolding, on the basis of this solution, further, the guiding discharge assembly includes a guide plate, and the corresponding ends of the movable mold and the fixed mold are rotatably connected to the guide plate through a rotating member, wherein the bottoms on both sides of the two guide plates are rotatably connected by pins, and the bottoms of the two guide plates are both provided with openings.

[0019] In order to rotate the guide plate, based on the above-mentioned solution, further, the rotating member includes a rotating seat, the rotating seat is fixedly connected to the movable mold or the fixed mold, a rotating shaft is fixedly connected to the rotating seat, and the guide plate is rotatably connected to the rotating shaft.

[0020] The working principle and beneficial effects of the present invention are:

[0021] 1. In the present invention, when it is necessary to quickly shape the plastic melt injected into the movable mold, water is first added to the multiple water injection pipes by rotating the water delivery assembly, and then the water in the water injection pipes enters the cooling cylinder through the water adding pipes, so that the cooling cylinder cools the threaded cylinder. During the flow process, the cooling water can be discharged from the cooling cylinder into the water storage cylinder through the leakage hole. The cooling water enters the water storage cylinder to increase the contact area with the outside and cool it. Then, the cooling water in the water storage cylinder can cool the forming mold sleeve and is then discharged through the drain pipe, completing the internal and external cooling and solidification of the plastic bottle cap in the forming mold sleeve, thereby improving the solidification efficiency and solidification effect of the plastic bottle cap.

[0022] 2. In the present invention, in order to avoid the messy problem of all the plastic bottle caps on the movable mold falling when demolding together, the present application provides a centralized rotating assembly between multiple rotating cylinders located in the same row, so that the plastic bottle caps are demolded in sequence from high to low, preventing a large number of plastic bottle caps from falling in a messy manner during the demolding process.

[0023] 3. In the present invention, when the contact relationship between the movable mold and the fixed mold is released, the two guide plates are unfolded between the movable mold and the fixed mold. After the plastic bottle cap contacts the guide plates, it leaks out through the opening between the two guide plates, thereby controlling the demolding and falling direction of the plastic bottle cap. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] Figure 1 It is a schematic structural diagram of the present invention as a whole;

[0026] Figure 2 This is a schematic diagram of the structure of the fixed mold, movable mold, centralized rotating assembly, water injection cooling assembly and centralized drainage assembly in the present invention;

[0027] Figure 3 This is a schematic diagram of the structure of the fixed mold, movable mold and centralized injection molding assembly in the present invention;

[0028] Figure 4 This is a schematic diagram of the structure of the movable mold, bottle cap forming assembly and guide discharge assembly in the present invention;

[0029] Figure 5For the present invention Figure 4 A schematic diagram of the partially enlarged structure at point A in the middle;

[0030] Figure 6 For the present invention Figure 4 A schematic diagram of the partially enlarged structure at B in the middle;

[0031] Figure 7 It is a partial cross-sectional structural diagram of the coordinated centralized rotating assembly, the water injection cooling assembly and the centralized drainage assembly in the present invention;

[0032] Figure 8 For the present invention Figure 7 A schematic diagram of the partially enlarged structure at C in the middle;

[0033] Figure 9 For the present invention Figure 7 A schematic diagram of the partially enlarged structure at D in the middle;

[0034] Figure 10 It is a schematic diagram of the structure of the centralized rotating assembly and the water injection cooling assembly in the present invention, with a partial cross-section;

[0035] Figure 11 It is a partial cross-sectional structural diagram of the cooperation of the water injection pipe, water inlet pipe, rotating cylinder and water injection filter layer in the present invention.

[0036] In the figure: 100, centralized injection molding assembly; 200, bottle cap molding assembly; 300, centralized rotation assembly; 400, water injection and cooling assembly; 500, centralized drainage assembly; 600, guide discharge assembly;

[0037] 1. Fixed mold; 2. Moving mold; 3. Injection cylinder; 4. Injection tube; 5. Molding mold sleeve; 6. Rotating cylinder; 7. Threaded cylinder; 8. Transmission gear; 9. Transmission gear plate; 10. Sliding rod; 11. Connecting seat; 12. Water injection pipe; 13. Water injection filter layer; 14. Cooling cylinder; 15. Water supply pipe; 16. Water storage cylinder; 17. Drain pipe; 18. Rotating ring; 19. Water inlet pipe; 20. Delivery pipeline; 21. Guide plate; 22. Pin shaft; 23. Rotating seat; 24. Rotating shaft. DETAILED DESCRIPTION

[0038] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0039] like Figures 1 to 11As shown, this embodiment proposes a plastic bottle cap injection molding mold, including a fixed mold 1 and a movable mold 2, a centralized injection molding component 100 is arranged in the fixed mold 1, and the centralized injection molding component 100 includes an injection cylinder 3 and an injection molding tube 4, the number of injection cylinders 3 is set to multiple, and the injection cylinders 3 correspond to the bottle cap molding components 200 one by one, and the multiple injection cylinders 3 are fixedly connected in the fixed mold 1, and the multiple injection cylinders 3 located in the same row are connected, and the multiple injection cylinders 3 on one side are connected with the injection molding tube 4, and the injection molding tube 4 passes through the fixed mold 1. When the plastic bottle cap injection molding operation is required, the movable mold 2 is first moved to make the injection molding cylinder 3 contact with the molding mold sleeve 5, and then the injection molding tube 4 is connected to the injection molding machine. The plastic melt discharged from the injection molding machine enters the multiple injection molding cylinders 3 through the injection molding tube 4, so that the plastic melt continues to enter the molding mold sleeve 5 to complete the injection molding operation of the plastic bottle cap.

[0040] It also includes a bottle cap molding assembly 200, the number of which is set to multiple, and multiple bottle cap molding assemblies 200 located in the same row are set to a group, the bottle cap molding assembly 200 is arranged on the movable mold 2, the bottle cap molding assembly 200 includes a molding mold sleeve 5 and a rotating cylinder 6, the movable mold 2 is provided with a accommodating cavity corresponding to the molding mold, the molding mold is fixedly connected in the accommodating cavity, the molding mold sleeve 5 is connected with the rotating cylinder 6, the rotating cylinder 6 is fixedly connected with the threaded cylinder 7, the outer wall of the threaded cylinder 7 is provided with a threaded section, after the plastic melt enters the molding mold sleeve 5, the plastic melt solidifies between the inner wall of the molding mold sleeve 5 and the outer wall of the threaded cylinder 7, the inner wall of the molding mold sleeve 5 is provided with anti-slip grooves, so that the surface of the molded plastic bottle cap also has anti-slip grooves, and the threaded section can make the inner wall of the molded plastic bottle cap have inner spiral grooves.

[0041] A centralized rotating assembly 300 is provided between multiple bottle cap molding assemblies 200 located in the same group. The centralized rotating assembly 300 includes a transmission gear 8, a transmission tooth plate 9 and a sliding rod 10. A transmission gear 8 is fixedly provided on the rotating cylinder 6. A transmission tooth plate 9 is provided between multiple transmission gears 8 located in the same row. A sliding groove is provided on one side of the transmission tooth plate 9. A sliding rod 10 is fixedly connected to the inner wall of the movable mold 2. The sliding rod 10 is slidably connected in the sliding groove. A connecting seat 11 is fixedly connected to the side of the transmission tooth plate 9 away from the sliding rod 10. The movable mold 2 has mounting openings corresponding to the multiple connecting seats 11, and an external A pushing device such as an air cylinder or an electric cylinder is installed in the installation port, so that the output end of the cylinder or the electric cylinder is connected to the connecting seat 11, and the transmission tooth plate 9 is pushed to move laterally. In order to avoid the messy problem of falling when all the plastic bottle caps on the movable mold 2 are demoulded together, the transmission tooth plate 9 is driven to move laterally from top to bottom, so that the transmission tooth plate 9 drives the transmission gear 8 to rotate, and the threaded cylinder 7 is driven to rotate during the rotation of the rotating cylinder 6. Because the molding mold sleeve 5 and the plastic bottle cap maintain a meshing relationship, the plastic bottle cap is removed from the molding mold sleeve 5. In addition, a push rod structure can be installed on the molding mold sleeve 5 to make it easier to remove the plastic bottle cap.

[0042] A water injection cooling assembly 400 is provided in the bottle cap molding assembly 200, and the water injection cooling assembly 400 is used to cool the plastic melt in the bottle cap molding assembly 200. The water injection cooling assembly 400 includes a water injection pipe 12, a cooling cylinder 14 and a rotating water delivery structure. The water injection pipe 12 extends into the rotating cylinder 6, and the water injection pipe 12 is connected to the rotating cylinder 6 with multiple water injection filter layers 13. The cooling cylinder 14 is fixedly connected to the threaded cylinder 7, and the cooling cylinder 14 fits the inner wall of the threaded cylinder 7. Multiple water supply pipes 15 are connected between the inner walls of the water injection pipe 12 and the cooling cylinder 14. A rotating water delivery structure is provided between the multiple water injection pipes 12 located in the same row. When the plastic melt in the forming die sleeve 5 needs to be cooled and shaped, cooling water is added through the multiple water injection pipes 12, and the cooling water is added to the cooling cylinder 14 through the multiple water injection pipes 15. Because the water injection pipes 15 are circumferentially connected to the inner side of the cooling cylinder 14, the cooling water can evenly enter the cooling cylinder 14. Because the cooling cylinder 14 fits tightly with the inner wall of the threaded cylinder 7, the threaded cylinder 7 can be quickly cooled, thereby improving the cooling efficiency of the plastic bottle cap. After the cooling water is subsequently discharged into the water storage cylinder 16, it can continue to flow back into the water injection pipe 12 after passing through the water injection filter layer 13 after cooling down.

[0043] The rotating water delivery structure includes a rotating ring sleeve 18, a water inlet pipe 19 and a delivery pipeline 20. The rotating ring sleeve 18 is rotatably sleeved on one side of the water injection pipe 12. The inner side of the rotating ring sleeve 18 is fixedly connected to the water inlet pipe 19, which extends into the water injection pipe 12. The delivery pipeline 20 is connected between multiple water inlet pipes 19 in the same row. The delivery pipeline 20 is fixedly connected to the movable mold 2 and extends from the movable mold 2. Because the water injection pipe 12 and the cooling cylinder 14 rotate with the rotating cylinder 6, the water inlet pipe 19 does not rotate with the water injection pipe 12 under the action of the rotating ring sleeve 18. Cooling water can be delivered to multiple water inlet pipes 19 at the same time through the delivery pipeline 20.

[0044] A centralized drainage assembly 500 is provided between multiple water injection cooling assemblies 400, and the centralized drainage assembly 500 is provided in the movable mold 2. The centralized drainage assembly 500 includes a water storage cylinder 16, a water leakage hole and a drainage pipe 17. The number of water storage cylinders 16 is set to multiple, and the water storage cylinders 16 correspond to the forming mold sleeve 5 one by one. The water storage cylinder 16 is fixedly connected to the inner wall of the movable mold 2, and one side of the forming mold sleeve 5 is located in the water storage cylinder 16. The multiple water storage cylinders 16 located in the same row are connected. A plurality of water leakage holes are opened on the circumference of the cooling cylinder 14, and both sides of the interior of the movable mold 2 are fixed. A drain pipe 17 is connected, and the bottom of the drain pipe 17 extends out from the bottom of the movable mold 2. The water storage cylinders 16 on both sides are connected to the drain pipe 17. After the cooling water in the cooling cylinder 14 is heated, as the subsequent cooling water is continuously added, the cooling water is discharged from the cooling cylinder 14 into the water storage cylinder 16 through the leakage hole. Because the forming mold sleeve 5 is still located in the water storage cylinder 16, the cooling water entering the water storage cylinder 16 can cool the forming mold sleeve 5, so that the inside and outside of the plastic bottle cap are cooled at the same time, thereby improving the cooling efficiency and cooling effect of the plastic bottle cap.

[0045] A plurality of guide and discharge assemblies 600 are provided between the fixed mold 1 and the movable mold 2. The guide and discharge assemblies 600 are provided on the lower side of the corresponding plurality of bottle cap molding assemblies 200. The guide and discharge assemblies 600 include a guide plate 21. The corresponding ends of the movable mold 2 and the fixed mold 1 are rotatably connected to the guide plate 21 through a rotating member. The bottoms of the two guide plates 21 are rotatably connected through a pin 22. The bottoms of the two guide plates 21 are both provided with openings. The rotating member includes a rotating seat 23. The rotating seat 23 is fixedly connected to the movable mold 2 or the fixed mold 1. The rotating seat 23 is fixedly connected to a rotating member. The guide plates 21 are rotatably connected to the rotating shaft 24. When the contact relationship between the movable mold 2 and the fixed mold 1 is released, the two guide plates 21 are unfolded between the movable mold 2 and the fixed mold 1. The guide plates 21 are flipped along the center point of the rotating shaft 24, and the bottom of the guide plates 21 rotates along the pin 22, so that the two guide plates 21 are unfolded in a V shape. After the plastic bottle cap is demoulded, the plastic bottle cap slides on the surface of the guide plate 21, so that the plastic bottle cap falls vertically downward along the two openings, and the falling position of the plastic bottle cap is controlled, which is convenient for subsequent transportation and reprocessing of the plastic bottle cap.

[0046] The working principle of the plastic bottle cap injection molding mold:

[0047] First, the fixed mold 1 and the movable mold 2 are fitted together, so that the injection cylinder 3 is in contact with the forming mold sleeve 5, and then the injection tube 4 is connected to the injection molding machine. The plastic melt discharged from the injection molding machine enters the multiple injection cylinders 3 through the injection tube 4, so that the plastic melt continues to enter the forming mold sleeve 5 to complete the injection molding operation of the plastic bottle cap. After the plastic melt enters the forming mold sleeve 5, the plastic melt solidifies between the inner wall of the forming mold sleeve 5 and the outer wall of the threaded cylinder 7. The inner wall of the forming mold sleeve 5 is provided with anti-slip grooves, so that the surface of the molded plastic bottle cap also has anti-slip grooves, and the threaded section can make the inner wall of the molded plastic bottle cap have inner spiral patterns;

[0048] When it is necessary to cool and shape the plastic melt in the forming die sleeve 5, cooling water is added through the multiple water injection pipes 12, and the cooling water is added into the cooling cylinder 14 through the multiple water injection pipes 15, so that the threaded cylinder 7 is cooled quickly, thereby improving the cooling efficiency of the plastic bottle cap; and after the cooling water is subsequently discharged into the water storage cylinder 16, the cooling water can continue to flow back into the water injection pipe 12 after the temperature drops through the water injection filter layer 13. After the cooling water in the cooling cylinder 14 heats up, as the subsequent cooling water is continuously added, the cooling water is discharged from the cooling cylinder 14 into the water storage cylinder 16 through the leaking hole. Because the forming die sleeve 5 is still located in the water storage cylinder 16, the cooling water entering the water storage cylinder 16 can cool the forming die sleeve 5, so that the inside and outside of the plastic bottle cap are cooled at the same time;

[0049] After completing the cooling and shaping effect on the plastic bottle cap, the movable mold 2 and the fixed mold 1 are separated, and the two guide plates 21 are unfolded between the movable mold 2 and the fixed mold 1, and then the transmission gear plate 9 is driven to move horizontally, and the transmission gear plate 9 is driven to move horizontally from top to bottom in turn, so that the transmission gear plate 9 drives the transmission gear 8 to rotate, and the threaded cylinder 7 is driven to rotate during the rotation of the rotating cylinder 6. Because the molding mold sleeve 5 and the plastic bottle cap maintain a meshing relationship, the plastic bottle cap is moved out of the molding mold sleeve 5, falls onto the surface of the guide plate 21, and finally falls through the opening at the bottom of the guide plate 21.

[0050] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A plastic bottle cap injection molding mold, comprising a fixed mold (1) and a movable mold (2), wherein a centralized injection molding component (100) is provided in the fixed mold (1), characterized in that: Also includes: A bottle cap forming assembly (200), wherein the number of the bottle cap forming assemblies (200) is set to be multiple, and the multiple bottle cap forming assemblies (200) located in the same row are set to be a group, the bottle cap forming assembly (200) is arranged on the movable mold (2) through the bottle cap forming assembly (2), and a centralized rotating assembly (300) is provided between the multiple bottle cap forming assemblies (200) located in the same group; a water injection cooling assembly (400), the water injection cooling assembly (400) being provided in the bottle cap molding assembly (200), and the water injection cooling assembly (400) being used to cool the plastic melt in the bottle cap molding assembly (200); A centralized drainage assembly (500), wherein the centralized drainage assembly (500) is arranged between the plurality of water injection cooling assemblies (400), and the centralized drainage assembly (500) is arranged in the movable mold (2); A guide and discharge assembly (600), wherein a plurality of the guide and discharge assemblies (600) are provided between the fixed mold (1) and the movable mold (2), and the guide and discharge assemblies (600) are provided on the lower side of the corresponding plurality of bottle cap molding assemblies (200); The guide discharge assembly (600) comprises: A guide plate (21), wherein corresponding ends of the movable mold (2) and the fixed mold (1) are both rotatably connected to the guide plate (21) via a rotating member; The bottoms of both sides of the two guide plates (21) are rotatably connected via pins (22), and the bottoms of the two guide plates (21) are each provided with an opening; The rotating member comprises: A rotating seat (23) is fixedly connected to the movable mold (2) or the fixed mold (1), a rotating shaft (24) is fixedly connected to the rotating seat (23), and the guide plate (21) is rotatably connected to the rotating shaft (24).

2. The plastic bottle cap injection molding die according to claim 1, characterized in that: The centralized injection molding component (100) comprises: Injection molding cylinders (3), the number of the injection molding cylinders (3) is set to be multiple, the injection molding cylinders (3) correspond one to one with the bottle cap molding assembly (200), the multiple injection molding cylinders (3) are fixedly connected in the fixed mold (1), and the multiple injection molding cylinders (3) located in the same row are connected; An injection molding tube (4), wherein the plurality of injection molding cylinders (3) on one side are connected to the injection molding tube (4), and the injection molding tube (4) passes through the fixed mold (1).

3. The plastic bottle cap injection molding die according to claim 2, characterized in that: The bottle cap molding assembly (200) comprises: A forming mold sleeve (5), wherein the movable mold (2) is provided with an accommodating cavity corresponding to the forming mold, and the forming mold is fixedly connected in the accommodating cavity; A rotating cylinder (6) is connected to the forming die sleeve (5) through the rotating cylinder (6), a threaded cylinder (7) is fixedly connected to the rotating cylinder (6), and a threaded section is provided on the outer wall of the threaded cylinder (7).

4. The plastic bottle cap injection molding die according to claim 3, characterized in that: The centralized rotation assembly (300) comprises: A transmission gear (8), wherein the transmission gear (8) is fixedly sleeved on the rotating cylinder (6); A transmission tooth plate (9) is provided between the plurality of transmission gears (8) in the same row and meshed with each other. A sliding groove is provided on one side of the transmission tooth plate (9); A sliding rod (10) is fixedly connected to the inner wall of the movable mold (2), and the sliding rod (10) is slidably connected to the sliding groove body.

5. The plastic bottle cap injection molding die according to claim 4, characterized in that: A connecting seat (11) is fixedly connected to the side of the transmission tooth plate (9) away from the sliding rod (10), and a plurality of mounting openings corresponding to the connecting seats (11) are provided on the movable mold (2).

6. The plastic bottle cap injection molding die according to claim 5, characterized in that: The water injection cooling assembly (400) comprises: A water injection pipe (12), the water injection pipe (12) extends into the rotating cylinder (6), and the water injection pipe (12) is connected to the rotating cylinder (6) and has multiple water injection filter layers (13); A cooling cylinder (14), wherein the cooling cylinder (14) is fixedly connected to the threaded cylinder (7), the cooling cylinder (14) is in contact with the inner wall of the threaded cylinder (7), and a plurality of water supply pipes (15) are connected between the water injection pipe (12) and the inner wall of the cooling cylinder (14); A rotating water delivery structure is provided between the plurality of water injection pipes (12) located in the same row.

7. The plastic bottle cap injection molding die according to claim 6, characterized in that: The centralized drainage assembly (500) comprises: A water storage cylinder (16), wherein the number of the water storage cylinders (16) is set to be multiple, the water storage cylinders (16) correspond one to one with the forming mold sleeve (5), the water storage cylinders (16) are fixedly connected to the inner wall of the movable mold (2), one side of the forming mold sleeve (5) is located in the water storage cylinder (16), and the multiple water storage cylinders (16) located in the same row are connected; Leakage holes, a plurality of leakage holes are provided on the circumference of the cooling cylinder (14); Drain pipes (17) are fixedly connected to both sides of the interior of the movable mold (2), the bottom of the drain pipes (17) extends from the bottom of the movable mold (2), and the water storage cylinders (16) located on both sides are connected to the drain pipes (17).

8. The plastic bottle cap injection molding die according to claim 7, characterized in that: The rotating water delivery structure comprises: A rotating ring sleeve (18), wherein the rotating ring sleeve (18) is rotatably sleeved on one side of the water injection pipe (12); A water inlet pipe (19), the inner side of the rotating ring sleeve (18) is fixedly connected to the water inlet pipe (19), and the water inlet pipe (19) extends into the water injection pipe (12); A delivery pipeline (20) is connected between the plurality of water inlet pipes (19) located in the same row. The delivery pipeline (20) is fixedly connected to the movable mold (2), and the delivery pipeline (20) extends from the movable mold (2).

Images