Plastic bottle cap injection molding mold

Abstract

The invention relates to the technical field of injection molding molds, and provides a plastic bottle cap injection molding mold which comprises a fixed mold, a movable mold, a plurality of bottle cap molding assemblies, a water injection cooling assembly and a centralized drainage assembly, the multiple bottle cap forming assemblies located in the same row are arranged in one set, the bottle cap forming assemblies are arranged on the movable mold in a penetrating mode, centralized rotating assemblies are arranged among the multiple bottle cap forming assemblies located in the same set, and water injection cooling assemblies are arranged in the bottle cap forming assemblies. The water injection cooling assemblies are used for cooling plastic melt in the bottle cap forming assembly, and the centralized drainage assembly is arranged between the multiple water injection cooling assemblies and arranged in the movable mold. And inconvenience is caused in the plastic bottle cap tray supporting process.

Description

Technical Field

[0001] The invention relates to the technical field of injection molding molds, and in particular to an injection molding mold for a plastic bottle cap. Background Art

[0002] The plastic bottle cap is a component for sealing plastic bottles in the prior art. The production and molding method of the plastic bottle cap is to first add the mixed plastic raw materials into the injection molding machine, and then use the injection molding machine to heat the plastic raw materials to make the plastic raw materials molten, and then be injected into the plastic bottle cap molding mold by the injection molding machine. After being fully cooled and molded in the molding mold, the plastic bottle cap is removed from the molding mold by rotating the middle molding mold sleeve in the direction, and then after some cutting operations are performed on the plastic bottle cap, the plastic bottle cap is installed with the filled plastic bottle.

[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 into 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, and 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 the 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 sleeves from 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 threads 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. In addition, 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 classify and transport the multiple plastic bottle caps later. Summary of the invention

[0005] The invention provides a plastic bottle cap injection molding mold, which solves the inconvenience problem that the injection molding mold in the prior art occurs during the actual use process 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 arranged 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 arranged between the multiple bottle cap forming assemblies located in the same group;

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

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

[0010] A guiding and discharging assembly is provided between the fixed mold and the movable mold, and the guiding and discharging assembly is provided at 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 to the bottle cap molding assemblies one by one. The multiple injection molding cylinders are fixedly connected in the fixed mold, and the multiple injection molding cylinders located in the same row are connected to each other, and 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, further, the bottle cap molding assembly includes a molding mold sleeve and a rotating cylinder, the movable mold 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 is penetrated by the rotating cylinder, the rotating cylinder is fixedly connected to a threaded cylinder, and the outer wall of the threaded cylinder is provided with a threaded section.

[0013] In order to drive multiple rotating cylinders in the same row to rotate, further, the centralized rotating assembly 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 in the sliding groove.

[0014] In order to connect the external device to the transmission tooth plate, based on the above scheme, a connecting seat is fixedly connected to the side of the transmission tooth plate away from the sliding rod, and installation 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 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, the water injection pipe is connected to the rotating cylinder with multiple water injection filter layers, the cooling cylinder is fixedly connected to the threaded cylinder, the cooling cylinder is fitted with the inner wall of the threaded cylinder, the water injection pipe and the inner wall of the cooling cylinder are connected with multiple water adding pipes, 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 the present scheme, further, the centralized drainage assembly includes a water storage cylinder, a leakage hole and a drain pipe, the number of the water storage cylinders is set to multiple, the water storage cylinders correspond to the forming mold sleeves one by one, the water storage cylinders are fixedly connected to the inner wall of the movable mold, one side of the forming mold sleeve is located in the water storage cylinder, and 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 drain pipes are fixedly connected to the inner sides of the movable mold, the bottom of the drain pipes extends out from the bottom of the movable mold, and the water storage cylinders located on both sides are connected to the drain pipes.

[0017] In order to add water to the rotating water injection pipe, on the basis of the above-mentioned scheme, further, the rotating water delivery structure includes a rotating ring sleeve, a water inlet pipe and a delivery pipeline. The rotating ring sleeve is rotatably mounted on one side of the water injection pipe, 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, and the delivery pipeline is connected between multiple water inlet pipes 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 the present solution, further, the guiding and discharging 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 through pins, and openings are provided at the bottoms of the two guide plates.

[0019] In order to rotate the guide plate, based on the above scheme, 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 multiple water injection pipes by rotating the water delivery assembly, and then the water in the water injection pipe enters the cooling cylinder through the water adding pipe, so that the cooling cylinder cools the threaded cylinder, and the cooling water can be discharged from the cooling cylinder into the water storage cylinder through the leakage hole during the flow process, and the cooling water enters the water storage cylinder to increase the contact area with the outside and cool it, and then the cooling water in the water storage cylinder can cool the molding die sleeve, and then be discharged through the drain pipe, completing the internal and external cooling and solidification of the plastic bottle cap in the molding die 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 down when being demolded together, a centralized rotating assembly is arranged between a plurality of rotating cylinders located in the same row, so that the plastic bottle caps are demolded in sequence from high to low, thereby preventing a large number of plastic bottle caps from falling down 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, 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 in conjunction with the accompanying drawings and specific embodiments.

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

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

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

[0028] Figure 4 It is a schematic diagram of the structure of the movable mold, the bottle cap forming component and the guiding and discharging component 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 cooperation of the 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] Fig. 9 For the present invention Figure 7 A schematic diagram of the partially enlarged structure at D in the middle;

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

[0035] Fig.11 It is a schematic structural diagram of a partial cross section of the cooperation of the water injection pipe, the water inlet pipe, the rotating cylinder and the 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 cooling assembly; 500, centralized drainage assembly; 600, guide discharge assembly;

[0037] 1. Fixed mold; 2. Moving mold; 3. Injection cylinder; 4. Injection tube; 5. Forming 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 adding pipe; 16. Water storage cylinder; 17. Drain pipe; 18. Rotating ring sleeve; 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 described embodiments 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 creative work 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, the centralized injection molding component 100 includes an injection molding cylinder 3 and an injection molding tube 4, the number of the injection molding cylinders 3 is set to multiple, the injection molding cylinders 3 correspond to the bottle cap molding components 200 one by one, 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, and the multiple injection molding cylinders 3 on one side are connected with the injection molding tube 4, and the injection molding tube 4 runs 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 with the injection molding machine, and the plastic melt discharged from the injection molding machine enters into 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 be multiple, and the multiple bottle cap molding assemblies 200 located in the same row are set to be 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 arranged between multiple bottle cap forming assemblies 200 in the same group, and 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 sleeved on the rotating cylinder 6, and a transmission tooth plate 9 is meshed between multiple transmission gears 8 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, and 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 is provided with installation 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 passage, so that the output end of the air 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 all the plastic bottle caps on the movable mold 2 being demolded together and falling, 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] The bottle cap molding assembly 200 is provided with a water injection cooling assembly 400, which 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 is fitted with the inner wall of the threaded cylinder 7. Multiple water adding pipes 15 are connected between the inner walls of the water injection pipe 12 and the cooling cylinder 14. The 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 mold 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 into 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 and the inner wall of the threaded cylinder 7 are tightly fitted, 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 through the water injection filter layer 13 after the cooling water is cooled.

[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 with the water inlet pipe 19. The water inlet pipe 19 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 simultaneously delivered to multiple water inlet pipes 19 through the delivery pipeline 20.

[0044] A centralized drainage assembly 500 is arranged between the multiple water injection cooling assemblies 400, and the centralized drainage assembly 500 is arranged 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 the water storage cylinders 16 is set to be multiple, and the water storage cylinders 16 correspond to the molding 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 molding 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 driven 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 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 leakage hole. Because the molding mold sleeve 5 is still located in the water storage cylinder 16, the cooling water entering the water storage cylinder 16 can cool the molding mold sleeve 5, so that the inside and outside of the plastic bottle cap can be 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 arranged between the fixed mold 1 and the movable mold 2, and the guide and discharge assemblies 600 are arranged at the lower side of the corresponding plurality of bottle cap molding assemblies 200. The guide and discharge assemblies 600 include a guide plate 21, and the corresponding ends of the movable mold 2 and the fixed mold 1 are rotatably connected with the guide plate 21 through a rotating member, wherein the bottoms of both sides of the two guide plates 21 are rotatably connected through a pin 22, and the bottoms of the two guide plates 21 are both provided with openings, and the rotating member includes a rotating seat 23, and the rotating seat 23 is fixedly connected to the movable mold 2 or the fixed mold 1, and a rotating 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, and 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 shaft 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, and the plastic bottle cap falls vertically downward along the two openings, so that the falling position of the plastic bottle cap is controlled, which is convenient for the subsequent transportation and reprocessing of the plastic bottle cap.

[0046] Working principle of this 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 into 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-skid patterns, so that the surface of the formed plastic bottle cap also has anti-skid patterns, and the threaded section can make the inner wall of the formed plastic bottle cap have inner spiral patterns;

[0048] When it is necessary to cool and shape the plastic melt in the molding 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 filling pipes 15, so that the threaded cylinder 7 is cooled quickly, and the cooling efficiency of the plastic bottle cap is improved; and after the cooling water is subsequently discharged into the water storage cylinder 16, after the cooling water cools down, it can continue to flow back into the water injection pipe 12 through the water injection filter layer 13, and 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 water leakage hole, because the molding die sleeve 5 is still located in the water storage cylinder 16, the cooling water entering the water storage cylinder 16 can cool the molding 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 tooth plate 9 is driven to move horizontally, and the transmission tooth plate 9 is driven to move horizontally from top to bottom in turn, 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 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 substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope 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 arranged 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 assemblies (200) are arranged through the movable mold (2), and a centralized rotating assembly (300) is arranged between the multiple bottle cap forming assemblies (200) located in the same group; a water injection cooling assembly (400), wherein the bottle cap molding assembly (200) is provided with the water injection cooling assembly (400), and the water injection cooling assembly (400) is used to cool the plastic melt in the bottle cap molding assembly (200); A centralized drainage component (500), wherein the centralized drainage component (500) is arranged between the plurality of water injection cooling components (400), and the centralized drainage component (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 arranged between the fixed mold (1) and the movable mold (2), and the guide and discharge assemblies (600) are arranged at the lower side of the corresponding plurality of bottle cap molding assemblies (200).

2. A plastic bottle cap injection molding mold 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 to the bottle cap molding components (200) one by one, the multiple injection molding cylinders (3) are all fixedly connected in the fixed mold (1), and the multiple injection molding cylinders (3) located in the same row are connected to each other; 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. A plastic bottle cap injection molding mold according to claim 2, characterized in that: The bottle cap molding assembly (200) comprises: A forming die sleeve (5), wherein the movable die (2) is provided with a receiving cavity corresponding to the forming die, and the forming die is fixedly connected in the receiving cavity; A rotating cylinder (6) is connected to the molding 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 mold 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, and 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 mold 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 installation openings are provided on the movable mold (2) corresponding to the connecting seats (11).

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

7. The plastic bottle cap injection molding mold 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 to the molding mold sleeves (5) one by one, the water storage cylinders (16) are fixedly connected to the inner wall of the movable mold (2), one side of the molding mold sleeve (5) is located inside the water storage cylinder (16), and the multiple water storage cylinders (16) located in the same row are connected to each other; Water leakage holes, a plurality of water leakage holes are provided on the circumference of the cooling cylinder (14); A drainage pipe (17), wherein the drainage pipe (17) is fixedly connected to both sides of the interior of the movable mold (2), the bottom of the drainage pipe (17) protrudes from the bottom of the movable mold (2), and the water storage cylinders (16) located on both sides are connected to the drainage pipe (17).

8. The plastic bottle cap injection molding mold 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 with 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 in the movable mold (2), and the delivery pipeline (20) extends out from the movable mold (2).

9. The plastic bottle cap injection molding mold according to claim 8, characterized in that: The guide discharge assembly (600) comprises: A guide plate (21), wherein corresponding ends of the movable mold (2) and the fixed mold (1) are 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.

10. The plastic bottle cap injection molding mold according to claim 9, characterized in that: The rotating member comprises: A rotating seat (23), the 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).

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