A plastic bottle cap injection molding device
By setting up a dust removal and filtration component, a cleaning mechanism, and a separation mechanism, the problems of dust pollution, airflow blockage, and backflow during the replenishment of masterbatch raw materials in injection molding equipment were solved, thus achieving high-quality bottle cap production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HONGQUAN FOOD PACKAGING (QUZHOU) CO LTD
- Filing Date
- 2026-05-26
- Publication Date
- 2026-07-28
AI Technical Summary
Existing injection molding equipment is prone to dust contamination when replenishing masterbatch materials, which affects the quality of bottle cap products. Furthermore, the airflow port is easily blocked and masterbatch materials may flow back, affecting the normal operation of the material supply.
The dust removal and filtration assembly filters dust through a combination of suction pipe and air blowing channel with filter screen. The cleaning mechanism cleans the airflow port by driving the dust removal plate with a motor. The separation mechanism separates the color masterbatch material by driving the separation plate with a motor to prevent backflow.
It effectively reduces contamination of color masterbatch raw materials, avoids airflow blockage, ensures normal material supply, and improves the quality and efficiency of bottle cap production.
Smart Images

Figure CN122463358A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of plastic bottle cap production technology, and more specifically, to a plastic bottle cap injection molding equipment. Background Technology
[0002] Injection molding, also known as transfer molding, is a molding method for thermosetting plastics developed from compression molding. It can mold plastic parts with complex shapes, thin walls or large variations in wall thickness, and fine inserts. Injection molding equipment can be used for the production and processing of plastic bottle caps, and has the advantages of short molding cycle, high production efficiency, high dimensional accuracy of plastic parts, and good surface quality.
[0003] Based on the above, the inventors have discovered that existing injection molding equipment uses a raw material tank to supply color masterbatch. The supply pipe is fixedly connected to the tank lid. Each time the color masterbatch is replenished, the lid needs to be opened, causing external dust to enter the raw material tank, which can easily lead to contamination and affect the product quality of the bottle caps. Therefore, in view of this, the inventors have researched and improved the existing structure to provide a plastic bottle cap injection molding equipment, aiming to achieve a more practical purpose. Summary of the Invention
[0004] 1. Technical problems to be solved
[0005] To address the problems existing in the prior art, the purpose of this invention is to provide a plastic bottle cap injection molding equipment. This solution includes a dust removal and filtration component, which can absorb and concentrate dust during the masterbatch feeding process, reducing the problem of masterbatch material contamination and improving the production quality of bottle caps. It also includes a cleaning component to clean the airflow ports, preventing blockages and ensuring normal airflow. Furthermore, a separating component acts as a barrier, reducing the backflow of masterbatch material due to the circulating airflow and ensuring the normal operation of the feeding process.
[0006] 2. Technical Solution
[0007] To solve the above problems, the present invention adopts the following technical solution.
[0008] A plastic bottle cap injection molding machine includes a feeder, a loader fixedly connected to the top of the feeder, and an injection molding machine fixedly connected to one side of the feeder. A feed pipe is fixedly connected to one side of the loader, and a raw material box is fixedly connected to the bottom end of the feed pipe. A feeding trough is opened at one end of the raw material box, and a fixed box is fixedly connected to the top of the raw material box. A first motor and a second motor are fixedly connected to the front of the raw material box, and an air pump is fixedly connected to the rear of the raw material box. A partition groove is centrally located inside the raw material box, and a storage groove is opened at the lower part of the inside of the raw material box. A blowing trough is opened at the lower middle part of the feeding trough. A set of air guide troughs is opened inside the blowing trough. A dust suction pipe is fixedly connected to one side of the fixed box. A cleaning mechanism is provided at one end of the inside of the feeding trough, and a separating mechanism is provided inside the partition groove.
[0009] The cleaning mechanism includes a reciprocating lead screw, a ball bearing slider is sleeved on the outside of the reciprocating lead screw, and a dust removal plate is fixedly connected below the ball bearing slider;
[0010] The separating mechanism includes a support shaft, and a set of separating plates are fixedly connected to the outside of the support shaft.
[0011] Furthermore, the output end of the air pump is fixedly connected to the air blowing trough, and the output end of the air pump is fixedly connected to the fixed box, with the dust suction pipe located directly above the air blowing trough.
[0012] Furthermore, one side of the partition groove is connected to the feed groove, and the other side of the partition groove is connected to the storage groove, with the feed pipe adapted to the storage groove.
[0013] Furthermore, the reciprocating screw is located inside the feed trough at one end, and the reciprocating screw is movably connected to the feed trough. The output end of the first motor is fixedly connected to one end of the reciprocating screw.
[0014] Furthermore, the support shaft is located in the center inside the partition groove, and the support shaft is movably connected to the partition groove, while the output end of the second motor is fixedly connected to the support shaft.
[0015] Furthermore, a guide rod is provided through the upper part of the ball slider, and the bottom surface of the dust removal plate is in contact with the top surface of the air guide groove.
[0016] Furthermore, several of the partition plates are arranged in a circular array, and one end of the partition plate on the outer side is attached to the inner surface of the partition groove.
[0017] Furthermore, a sliding frame is slidably connected inside the fixed box, and a filter screen is fixedly connected to one side of the sliding frame.
[0018] 3. Beneficial Effects
[0019] Compared with the prior art, the advantages of this invention are:
[0020] (1) This solution generates suction by setting up a dust suction pipe, and at the same time, the blowing channel and the air guide channel blow the rolling and falling color masterbatch. The generated circulating airflow guides the dust and impurities in the air to enter the fixed box and be filtered by the filter screen, and accumulates inside the sliding frame. Compared with the existing technology, the dust removal and filtration component can absorb and concentrate dust during the color masterbatch feeding process, reduce the problem of color masterbatch raw material pollution, and improve the production quality of bottle caps.
[0021] (2) By setting up a cleaning mechanism, during the dust removal and filtration process, the first motor is started to drive the reciprocating screw to rotate. The reciprocating screw cooperates with the ball slider to make the dust removal plate move back and forth to clean the surface of the air guide groove. Compared with the existing technology, the cleaning component can clean the airflow port to avoid blockage and ensure the normal flow of the circulating airflow.
[0022] (3) By setting up a separation mechanism, the color masterbatch material enters the partition tank and the second motor is started to drive the support shaft to rotate. The support shaft, together with the partition plate, drives the color masterbatch material into the storage tank. At the same time, the partition plate plays a role in separation. Compared with the existing technology, setting up a separation component can play a role in separation, reduce the problem of backflow of color masterbatch material due to circulating airflow, and ensure the normal operation of the material supply. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;
[0024] Figure 2 This is a schematic diagram of the back structure of the raw material box of the present invention;
[0025] Figure 3 This is a schematic diagram of the internal structure of the raw material box of the present invention;
[0026] Figure 4 This is a schematic diagram of the cleaning mechanism of the present invention;
[0027] Figure 5 This is a schematic diagram of the separation mechanism of the present invention;
[0028] Figure 6 This is a structural exploded view of the fixed box and sliding frame of the present invention.
[0029] The following are the labels in the diagram: 1. Feeder; 2. Loader; 3. Injection press; 4. Feed pipe; 5. Raw material box; 6. Feed chute; 7. First motor; 8. Second motor; 9. Fixed box; 10. Air pump; 11. Partition chute; 12. Storage chute; 13. Air blowing chute; 14. Air guide chute; 15. Dust suction pipe; 16. Cleaning mechanism; 17. Separating mechanism; 18. Reciprocating lead screw; 19. Ball bearing slider; 20. Dust removal plate; 21. Support shaft; 22. Separating plate; 23. Sliding frame; 24. Filter screen. Detailed Implementation
[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.
[0031] Example:
[0032] Please see Figures 1-6 A plastic bottle cap injection molding equipment includes a feeder 1, a feeder 2 fixedly connected to the top of the feeder 1, an injection molding machine 3 fixedly connected to one side of the feeder 1, a feed pipe 4 fixedly connected to one side of the feeder 2, a raw material box 5 fixedly connected to the bottom end of the feed pipe 4, a feeding trough 6 opened at one end of the raw material box 5, a fixed box 9 fixedly connected to the top of the raw material box 5, a first motor 7 and a second motor 8 fixedly connected to the front side of the raw material box 5, and an air pump 10 fixedly connected to the rear side of the raw material box 5. A partition groove 11 is opened in the center of the inside of the raw material box 5, and a storage groove 12 is opened at the bottom of the inside of the raw material box 5. A blowing groove 13 is opened at the bottom of the middle of the feeding trough 6. A set of air guide grooves 14 are opened inside the blowing groove 13. A dust suction pipe 15 is fixedly connected to one side of the fixed box 9. A cleaning mechanism 16 is provided at one end of the inside of the feeding trough 6. A separating mechanism 17 is provided inside the partition groove 11.
[0033] The cleaning mechanism 16 includes a reciprocating lead screw 18, a ball slider 19 is sleeved on the outside of the reciprocating lead screw 18, and a dust removal plate 20 is fixedly connected to the bottom of the ball slider 19.
[0034] The separating mechanism 17 includes a support shaft 21, and a set of separating plates 22 are fixedly connected to the outside of the support shaft 21. The separating mechanism 17 is provided to avoid the problem of colorant backflow caused by airflow.
[0035] See Figure 1The output end of the air pump 10 is fixedly connected to the air blowing channel 13, and the output end of the air pump 10 is fixedly connected to the fixed box 9. The dust suction pipe 15 is located directly above the air blowing channel 13. When the air pump 10 is started, the dust suction pipe 15 generates suction. At the same time, the air blowing channel 13, in conjunction with the air guide channel 14, blows the rolling and falling color masterbatch, generating a circulating airflow to guide the dust and impurities in the air into the fixed box 9.
[0036] See Figure 2 One side of the partition groove 11 is connected to the feed groove 6, and the other side of the partition groove 11 is connected to the storage groove 12. The feed pipe 4 is adapted to the storage groove 12, and the color masterbatch raw material enters the interior of the partition groove 11 through the feed groove 6.
[0037] See Figure 3 The reciprocating screw 18 is located inside the feed trough 6 near one end, and the reciprocating screw 18 is movably connected to the feed trough 6. The output end of the first motor 7 is fixedly connected to one end of the reciprocating screw 18. The first motor 7 is started to drive the reciprocating screw 18 to rotate.
[0038] See Figure 4 The support shaft 21 is located in the center inside the partition groove 11, and the support shaft 21 is movably connected to the partition groove 11. The output end of the second motor 8 is fixedly connected to the support shaft 21. The second motor 8 is started to drive the support shaft 21 to rotate.
[0039] See Figure 4 A guide rod is provided above the ball slider 19. The bottom surface of the cleaning plate 20 is in contact with the top surface of the air guide duct 14. The reciprocating screw 18 works with the ball slider 19 to make the cleaning plate 20 move back and forth to clean the surface of the air guide duct 14, avoid blockage, and ensure the normal flow of circulating air.
[0040] See Figure 5 Several partition plates 22 are arranged in a circular array, and one end of the partition plate 22 is attached to the inner surface of the partition groove 11. The support shaft 21 cooperates with the partition plate 22 to drive the color masterbatch material into the storage tank 12. At the same time, the partition plate 22 plays a role in isolation.
[0041] See Figure 6 Inside the fixed box 9, there is a sliding frame 23. A filter screen 24 is fixedly connected to one side of the sliding frame 23. After dust enters the fixed box 9, it is filtered by the filter screen 24 and accumulates inside the sliding frame 23. After production is completed, the sliding frame 23 can be removed for dust treatment.
[0042] In use: The color masterbatch material is placed inside the feed trough 6 and rolled. Simultaneously, the air pump 10 is started, and suction is generated by the dust suction pipe 15. At the same time, the blowing trough 13, in conjunction with the air guide trough 14, blows the rolling color masterbatch. When the color masterbatch material passes above the air guide trough 14, the generated circulating airflow guides dust and impurities in the air into the fixed box 9, where it is filtered by the filter screen 24, causing dust to accumulate inside the sliding frame 23. The first motor 7 is started, driving the reciprocating screw 18 to rotate. The reciprocating screw 18, in conjunction with the ball bearing slider 19, causes the cleaning plate 20 to move back and forth, cleaning the surface of the air guide trough 14. The process involves cleaning to prevent blockages and ensuring normal airflow. The masterbatch material then enters the partition trough 11. The second motor 8 is started, driving the support shaft 21 to rotate. The support shaft 21, in conjunction with the partition plate 22, guides the masterbatch material into the storage trough 12. Simultaneously, the partition plate 22 acts as a barrier, preventing backflow of the masterbatch material. Finally, the feeder 2, in conjunction with the feeding pipe 4, sends the masterbatch material into the feeder 1, which then feeds it into the injection molding machine 3 for plastic bottle cap injection production. After production is complete, the sliding frame 23 can be removed for dust removal.
[0043] Finally, it should be noted that in the description of this invention, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.
[0044] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.
[0045] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and its improved concepts, should be covered within the scope of protection of the present invention.
Claims
1. A plastic bottle cap injection molding equipment, comprising a feeder (1), wherein a feeder (2) is fixedly connected above the feeder (1), and an injection molding machine (3) is fixedly connected to one side of the feeder (1), a feed pipe (4) is fixedly connected to one side of the feeder (2), and a raw material box (5) is fixedly connected to the bottom end of the feed pipe (4), characterized in that: The raw material box (5) has a feeding trough (6) at one end, and a fixed box (9) is fixedly connected to the top of the raw material box (5). A first motor (7) and a second motor (8) are fixedly connected to the front side of the raw material box (5), and an air pump (10) is fixedly connected to the rear side of the raw material box (5). A partition groove (11) is provided in the center of the inside of the raw material box (5), and a storage groove (12) is provided at the bottom of the inside of the raw material box (5). A blowing groove (13) is provided at the bottom of the middle part of the feeding trough (6). A set of air guide grooves (14) is provided inside the blowing groove (13). A dust suction pipe (15) is fixedly connected to one side of the fixed box (9). A cleaning mechanism (16) is provided at one end of the inside of the feeding trough (6), and a separation mechanism (17) is provided inside the partition groove (11). The cleaning mechanism (16) includes a reciprocating screw (18), a ball block (19) is sleeved on the outside of the reciprocating screw (18), and a dust removal plate (20) is fixedly connected below the ball block (19). The separating mechanism (17) includes a support shaft (21), and a set of separating plates (22) are fixedly connected to the outside of the support shaft (21).
2. The plastic bottle cap injection molding equipment according to claim 1, characterized in that: The output end of the air pump (10) is fixedly connected to the air blowing trough (13), and the output end of the air pump (10) is fixedly connected to the fixed box (9). The suction pipe (15) is located directly above the air blowing trough (13).
3. The plastic bottle cap injection molding equipment according to claim 1, characterized in that: One side of the partition groove (11) is connected to the feed groove (6), and the other side of the partition groove (11) is connected to the storage groove (12). The feed pipe (4) is adapted to the storage groove (12).
4. The plastic bottle cap injection molding equipment according to claim 1, characterized in that: The reciprocating screw (18) is located inside the feed trough (6) at one end, and the reciprocating screw (18) is movably connected to the feed trough (6). The output end of the first motor (7) is fixedly connected to one end of the reciprocating screw (18).
5. The plastic bottle cap injection molding equipment according to claim 1, characterized in that: The support shaft (21) is located in the center inside the partition groove (11), and the support shaft (21) is movably connected to the partition groove (11). The output end of the second motor (8) is fixedly connected to the support shaft (21).
6. The plastic bottle cap injection molding equipment according to claim 1, characterized in that: A guide rod is provided through the top of the ball block slider (19), and the bottom surface of the dust removal plate (20) is in contact with the top surface of the air guide groove (14).
7. The plastic bottle cap injection molding equipment according to claim 1, characterized in that: Several of the partition plates (22) are arranged in a ring array, and one end of the partition plate (22) on the outer side is attached to the inner surface of the partition groove (11).
8. The plastic bottle cap injection molding equipment according to claim 1, characterized in that: The fixed box (9) has a sliding frame (23) inside, and a filter screen (24) is fixedly connected to one side of the sliding frame (23).