Thread drawing mechanism for bottle cap injection mold

Abstract

The utility model provides a tapping mechanism for a bottle cap injection mold, which comprises an injection mold bottom plate, a plurality of injection mold plates are assembled and mounted on an assembly column fixedly mounted above the injection mold bottom plate, at least two tapping components are arranged, the bottom end of a pressing rod of each tapping component is rotatably mounted on the injection mold bottom plate, and the bottom end of a pressing rod of each tapping component is rotatably mounted on the injection mold bottom plate. The upper end of the pressing rod is fixedly provided with a glue position sleeve piece and a tapping sleeve piece through screws, the glue position sleeve piece is located below the tapping sleeve piece, the glue position sleeve piece and the tapping sleeve piece are sleeved with a rotation stopping sleeve piece in a sliding mode, and the rotation stopping sleeve piece is sleeved with a limiting plate in a sliding mode; the die is easy to maintain, and the product quality is ensured through accurate tapping. The modular design enables the components to be tightly connected and easy to disassemble, the cost is reduced, and the efficiency is improved. The external threads of the thread drawing external member are assembled with the inclined surface of the pressing rod, so that the threads are complete and are uniformly spaced, the rotation stopping external member prevents a product from rotating, the precision is improved, and the cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of injection molds, and in particular relates to a tooth extraction mechanism for a bottle cap injection mold. Background Art

[0002] In the bottle cap injection mold industry, traditional extraction mechanisms often rely on a large number of manual operations and mechanical components, which not only increases production costs but can also lead to mechanical wear and unstable product quality. Furthermore, traditional extraction mechanisms often require additional space to accommodate the complex mechanical structure during the demolding process, which not only increases the overall size of the mold but also increases the mold manufacturing cost.

[0003] Therefore, it is very necessary to invent a bottle cap injection mold and use a tooth extraction mechanism. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a tooth extraction mechanism for a bottle cap injection mold, comprising an injection mold base plate, an assembly column, an injection template, and a tooth extraction assembly. Several injection templates are assembled and installed on the assembly column fixedly installed above the injection mold base plate, and at least two tooth extraction assemblies are provided. The bottom end of the pressure rod of each tooth extraction assembly is rotatably installed on the injection mold base plate, and is rotatably connected to different injection templates through bearings. The upper end of the pressure rod is fixedly installed with a glue position kit and a tooth extraction kit by screws. The glue position kit is located below the tooth extraction kit. The outer sliding sleeves of the glue position kit and the tooth extraction kit are provided with the anti-rotation kit, and the anti-rotation kit is slidably provided with a limiting plate. The tooth rod gear fixedly installed on the pressure rod is engaged with the transmission gear of the driving component.

[0005] Preferably, the tooth extraction kit provided at the upper end of the pressure rod protrudes outward from the limiting plate, the product is molded outside the tooth extraction kit, and the limiting plate is fixed to the uppermost injection molded template.

[0006] Preferably, the outer surface of the tooth extraction kit is provided with screw threads, the tooth extraction kit and the upper end of the pressure rod are assembled together with an inclined sleeve, and the inner diameter of the uppermost area of ​​the tooth extraction kit is larger than the outer diameter of the tooth extraction kit, but smaller than the inner diameter of the product.

[0007] Preferably, a protrusion is provided on the upper end of the anti-rotation kit. After the product is formed, the protrusion of the anti-rotation kit will be combined with the lower part of the inner part of the product. The anti-rotation kit is used to increase the counterweight of the product.

[0008] Preferably, the anti-rotation kit is allowed to slide up and down along the axis of the pressure rod in the limiting plate, and the upward sliding distance of the anti-rotation kit is less than the length of the inner thread of the product.

[0009] Preferably, several of the injection molding templates are tightly assembled together, wherein guide holes are provided through the four corners of the upper injection molding template. In addition, some of the injection molding templates are provided with notches required for installing the driving components.

[0010] Preferably, the driving component includes a driven gear, a transmission rack, a driving cylinder and a C-block, the driven gear is fixedly installed below the transmission gear, the driven gear is engaged with the transmission rack fixed to the output end of the driving cylinder, and the driving cylinder is fixedly installed on the outside of several of the injection molds through the C-block.

[0011] Preferably, the transmission gear and the driven gear are rotatably mounted in the injection molding template in combination with the gear set, wherein the transmission rack is slidably mounted in the injection molding template.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The present invention has multiple beneficial effects such as simple structure, easy maintenance, precise tooth extraction, quality assurance, efficient operation, cost reduction, strong adaptability and wide application range. It can realize "self-rotation of the tooth rod, natural rise of the product, and separation from the tooth rod", realizing automatic demoulding while saving mold space and reducing mold manufacturing costs. The mechanism adopts a modular design, and the various components are tightly connected and easy to disassemble, which reduces production costs and improves production efficiency. The screw threads set on the outer surface of the tooth extraction kit are assembled with the inclined surface of the upper end of the pressure rod to ensure the integrity of the screw threads and the uniformity of the spacing. At the same time, the design of the anti-rotation kit prevents rotation during the product molding process, thereby improving product quality and precision. Through the automated operation of the driving components, efficient production is achieved, manual operation and mechanical wear are reduced, and production costs are further reduced. In addition, the mechanism can be adjusted according to different bottle cap sizes and shapes, has a wide range of applications, and can meet the needs of different customers. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 It is a half-section structural schematic diagram of the utility model.

[0016] Figure 3 This utility model Figure 2 Schematic diagram of the local enlarged structure at point A.

[0017] Figure 4 This utility model Figure 3 Schematic diagram of the local enlarged structure at point B.

[0018] Figure 5 It is a schematic diagram of the overall internal structure of the driving components of the utility model.

[0019] In the picture:

[0020] Injection mold base plate 1, assembly column 2, injection mold plate 3, tooth extraction assembly 4, pressure rod 41, glue position kit 42, tooth extraction kit 43, anti-rotation kit 44, limiting plate 45, tooth rod gear 46, product 5, driving component 6, transmission gear 61, driven gear 62, transmission rack 63, driving cylinder 64, C-block 65, guide hole 7. DETAILED DESCRIPTION

[0021] In order to help those skilled in the art better understand the present invention, the following will 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 those skilled in the art without creative work should fall within the scope of protection of the present invention.

[0022] In the description of the embodiments, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In the description of the utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or it can be a communication between the internal parts of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0023] As attached Figure 1 To the attached Figure 5 As shown:

[0024] The utility model provides a tooth extraction mechanism for a bottle cap injection mold, comprising an injection mold base plate 1, an assembly column 2, an injection template 3, and a tooth extraction component 4. A plurality of injection templates 3 are assembled and installed on the assembly column 2 fixedly installed above the injection mold base plate 1. At least two tooth extraction components 4 are provided. The bottom end of a pressure rod 41 of each tooth extraction component 4 is rotatably installed on the injection mold base plate 1 and is rotatably connected to different injection templates 3 through bearings. A glue position kit 42 and a tooth extraction kit 43 are fixedly installed on the upper end of the pressure rod 41 by screws. The glue position kit 42 is located below the tooth extraction kit 43. The outer parts of the glue position kit 42 and the tooth extraction kit 43 are slidably sleeved with the anti-rotation kit 44. The anti-rotation kit 44 is slidably sleeved with a limiting plate 45. The tooth rod gear 46 fixedly installed on the pressure rod 41 is meshed with the transmission gear 61 of the driving component 6.

[0025] Furthermore, the extraction sleeve 43 at the upper end of the pressure rod 41 is uniquely designed, protruding beyond the limiting plate 45. This means that during the molding process, the product 5 is formed outside the extraction sleeve 43. At the same time, the limiting plate 45 is firmly connected to the uppermost injection mold plate 3, ensuring the stability and accuracy of the overall structure.

[0026] Furthermore, the outer surface of the extraction sleeve 43 is cleverly designed with threads that facilitate the formation of internal threads on the product 5 after molding. These threads allow the product 5 to be subsequently removed. The extraction sleeve 43 and the upper end of the pressure rod 41 are assembled together using an inclined sleeve arrangement, which ensures a more secure connection and prevents loosening. Furthermore, the inner diameter of the uppermost area of ​​the extraction sleeve 43 is larger than its outer diameter, but smaller than the inner diameter of the product 5. This dimensional design ensures that the product 5 can be smoothly inserted into the extraction sleeve 43 while maintaining a sufficient tightness.

[0027] Furthermore, the design of the anti-rotation assembly 44 is equally ingenious. The raised portion on its upper end tightly integrates with the lower portion of the inner portion of the product 5 after molding. This design not only increases the stability of the product 5, but also provides additional counterweight to the product 5 through the anti-rotation assembly 44, preventing the product 5 from rotating during the subsequent rotation of the thread extraction assembly 43. Furthermore, the anti-rotation assembly 44 allows for upward and downward sliding along the axis of the pressure rod 41 within the limiting plate 45, but the distance of its upward sliding is strictly controlled to within the length of the thread inside the product 5, ensuring that the thread of the product 5 is retained intact and providing a foundation for the subsequent disengagement of the product 5 from the raised portion of the anti-rotation assembly 44.

[0028] Furthermore, the injection mold plates 3 are tightly assembled, ensuring stability and accuracy during the injection molding process. Guide holes 7 are provided at the four corners of the upper injection mold plate 3. These holes not only facilitate accurate positioning of the mold plates but also serve as guides during the injection molding process. Furthermore, some injection mold plates 3 are provided with notches for installing the drive component 6, facilitating its installation.

[0029] Furthermore, the driving component 6 is composed of a driven gear 62, a transmission rack 63, a driving cylinder 64 and a C-block 65. The driven gear 62 is fixedly mounted below the transmission gear 61 and meshes with the transmission rack 63 fixed to the output end of the driving cylinder 64. This design enables the driving cylinder 64 to drive the rotation of the transmission gear 61 through the transmission rack 63 and the driven gear 62. At the same time, the driving cylinder 64 is fixedly mounted on the outside of several injection molds 3 through the C-block 65, ensuring the stability and reliability of the driving component 6. The transmission gear 61 and the driven gear 62 are rotatably mounted in the injection mold 3 in combination with the gear set, while the transmission rack 63 is slidably mounted in the injection mold 3. This design enables the driving component 6 to flexibly control the rotational movement of the pressure rod 41.

[0030] The working principle is as follows: First, after the injection molding process is completed, the mold enters the mold opening stage. At this time, the injection mold plate 3 begins to separate, preparing for the removal of the product. During this process, the various components of the tooth extraction mechanism begin to operate according to the set actions.

[0031] Then, the drive unit 6 starts to operate. The drive cylinder 64 is securely fixed to the outside of the injection mold plate 3 via a C-shaped block 65. Its output pushes the transmission rack 63 to move. The transmission rack 63 meshes with the driven gear 62, causing the driven gear 62 to rotate. Because the driven gear 62 is coupled to the transmission gear 61, the transmission gear 61 rotates accordingly.

[0032] Then, the rotation of the transmission gear 61 drives the toothed rod gear 46 meshing with it to rotate. The toothed rod gear 46 is fixed on the pressure rod 41, so the pressure rod 41 also rotates with the rotation of the transmission gear 61. In this process, the rotation installation at the bottom of the pressure rod 41 ensures that it can rotate smoothly.

[0033] At this point, the thread extraction kit 43 and the adhesive positioning kit 42 at the upper end of the pressure rod 41 rotate with the rotation of the pressure rod 41. Because the thread extraction kit 43 is provided with threads on its outer surface, these threads mate with the inner threads of the product 5 after it is formed. The bottom of the product 5 is connected to the protrusion of the anti-rotation kit 44. This anti-rotation kit 44 increases the product's counterweight and friction. Therefore, during the rotation of the pressure rod 41, the thread extraction kit 43 does not rotate the product 5, but instead moves the product 5 and the anti-rotation kit 44 upward.

[0034] At the same time, the anti-rotation assembly 44 slides up and down along the axial direction of the pressure rod 41 within the limiting plate 45. During the first mold opening operation, the anti-rotation assembly 44 rises together with the product 5. The rising distance h1 is determined by the overall height H of the mold, the height h2 of the product 5, and the reserved gap 0.5, that is, h1 = H - h2 - 0.5.

[0035] Next, during the second mold opening, the pressure rod 41 continues to rotate, but the anti-rotation member 44 has reached its end point and cannot move upward, so it remains stationary. Due to the threaded engagement between the product 5 and the thread extraction member 43, the product 5 continues to rise as the thread extraction member 43 rotates. During this process, the raised portion between the product 5 and the anti-rotation member 44 gradually separates, until the product 5 reaches the preset height H - 0.5, completing the second mold opening and fully separating the product 5.

[0036] Finally, after the product 5 is completely taken out from the mold, the driving component 6 stops working and the pressing rod 41 also stops rotating. At this moment, the entire tooth extraction mechanism returns to its initial state and waits for the start of the next injection molding process.

[0037] Utilizing the technical solution described in the utility model, or those skilled in the art designing similar technical solutions inspired by the technical solution of the utility model to achieve the above-mentioned technical effects, all fall within the scope of protection of the utility model.

Claims

1. A tooth extraction mechanism for a bottle cap injection mold, characterized in that: The invention comprises an injection mold base plate (1), an assembly column (2), an injection mold template (3), and a tooth extraction component (4). A plurality of the injection mold templates (3) are assembled and mounted on the assembly column (2) fixedly mounted above the injection mold base plate (1). At least two tooth extraction components (4) are provided. The bottom end of the pressure rod (41) of each tooth extraction component (4) is rotatably mounted on the injection mold base plate (1) and is rotatably connected to different injection mold templates (3) through bearings. The upper end of the pressure rod (41) is fixedly mounted with a glue position kit (42) and a tooth extraction kit (43) through screws. The glue position kit (42) is located below the tooth extraction kit (43). The outer sides of the glue position kit (42) and the tooth extraction kit (43) are slidably sleeved with a rotation-stopping kit (44). The rotation-stopping kit (44) is slidably sleeved with a limiting plate (45). The tooth rod gear (46) fixedly mounted on the pressure rod (41) is meshed with the transmission gear (61) of the driving component (6).

2. A tooth extraction mechanism for a bottle cap injection mold according to claim 1, characterized in that: The tooth extraction kit (43) provided at the upper end of the pressure rod (41) protrudes outward from the limiting plate (45), and the product (5) is formed outside the tooth extraction kit (43), and the limiting plate (45) is fixed to the uppermost injection mold plate (3).

3. A tooth extraction mechanism for a bottle cap injection mold according to claim 2, characterized in that: The outer surface of the tooth extraction kit (43) is provided with screw threads, and the upper ends of the tooth extraction kit (43) and the pressure rod (41) are assembled together in a beveled sleeve manner. The inner diameter of the uppermost area of ​​the tooth extraction kit (43) is larger than the outer diameter of the tooth extraction kit (43), but smaller than the inner diameter of the product (5).

4. A thread extraction mechanism for a bottle cap injection mold according to claim 3, characterized in that: The upper end of the anti-rotation kit (44) is provided with a protrusion. After the product (5) is formed, the protrusion of the anti-rotation kit (44) will be combined with the lower part of the inner part of the product (5). The anti-rotation kit (44) is used to increase the counterweight of the product (5).

5. The tooth extraction mechanism for a bottle cap injection mold according to claim 4, characterized in that: The anti-rotation kit (44) is allowed to slide up and down along the axis of the pressure rod (41) in the limiting plate (45), and the upward sliding distance of the anti-rotation kit (44) is less than the length of the inner thread of the product (5).

6. The tooth extraction mechanism for a bottle cap injection mold according to claim 1, characterized in that: Several of the injection molding templates (3) are tightly assembled together, wherein the four corners of the upper injection molding template (3) are penetrated by guide holes (7). In addition, some of the injection molding templates (3) are provided with notches required for installing the driving component (6).

7. The tooth extraction mechanism for a bottle cap injection mold according to claim 6, characterized in that: The driving component (6) comprises a driven gear (62), a transmission rack (63), a driving cylinder (64) and a C-shaped block (65); the driven gear (62) is fixedly mounted below the transmission gear (61); the driven gear (62) is meshed with the transmission rack (63) fixed to the output end of the driving cylinder (64); and the driving cylinder (64) is fixedly mounted on the outside of the plurality of injection mold plates (3) via the C-shaped block (65).

8. The tooth extraction mechanism for a bottle cap injection mold according to claim 7, characterized in that: The transmission gear (61) and the driven gear (62) are rotatably mounted in the injection mold plate (3) in conjunction with a gear set, wherein the transmission rack (63) is slidably mounted in the injection mold plate (3).

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