Rubber coating processing mold for double material pipes

Abstract

The utility model relates to the technical field of rubber coating processing molds, and discloses a rubber coating processing mold for double material pipes, which comprises a mold main body, the top of the mold main body is fixedly connected with an upper mold, and the top of the upper mold is fixedly connected with an injection molding port. The sliding block insert is aligned with the primary ejection runner, a base material is injected into the injection molding machine, a primary product is formed after cooling, the product is still fixed in the sliding block insert at the moment, then after the mold is opened, the push-pull plate drives the inner sliding block to move to a shifting block inclined surface acting area, the inner sliding block is forwards switched to the position of a secondary rubber coating mold core, and the runner switching device opens the secondary runner; the surface of a primary product is filled with materials, and meanwhile, the push-pull plate drives the inner sliding block to reset during mold closing, so that in the production process, the machining efficiency of a machined part is improved, the reject ratio is reduced, longer production time is avoided, and labor and production cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of coating processing mold technology, specifically a coating processing mold with dual material tubes. Background Technology

[0002] Dual-tube overmolding typically employs an overmolding injection molding process, molding two plastic materials in two stages. The first injection molding is of the substrate (such as rigid plastic), followed by a second injection molding to coat the substrate surface or interior with a cover material (such as elastic resin), forming a multi-layer structure.

[0003] In existing technologies, when the tail of a product has a different shape and material, it is usually necessary to use two injection molding machines to perform two injections simultaneously during the production process. That is, after the product leaves the mold once, it is taken to another injection molding machine for a second injection. In actual use, the traditional method of leaving the mold once and then performing a second injection results in low efficiency and high defect rate in the processed parts, requiring longer production time and increasing labor and production costs. Therefore, there is a need to improve the double-tube overmolding processing mold. Utility Model Content

[0004] The purpose of this invention is to provide a double-tube overmolding mold to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a double-tube overmolding mold, comprising a mold body, an upper mold fixedly connected to the top of the mold body, an injection port fixedly connected to the top of the upper mold, a core-pulling mechanism provided inside the mold body, and a pushing mechanism provided at the bottom of the mold body;

[0006] The core-pulling mechanism includes a pry block, which is fixedly connected to the back of the upper mold. A slope is fixedly connected to the front of the pry block. A bottom push-pull plate is slidably connected inside the mold body. An inner slider is fixedly connected to the top of the bottom push-pull plate. A slider insert is fixedly connected to the top of the inner slider. A guide block is fixedly connected inside the mold body. A locking block is fixedly connected to the outside of the mold body, which facilitates switching the position of the secondary corner core.

[0007] Preferably, a groove is provided at the position corresponding to the inner slider of the mold body, and the inner slider is slidably connected in the groove to facilitate its guiding function.

[0008] Preferably, the upper mold has a groove at the position corresponding to the push block, and the push block is fixedly connected in the groove for easy subsequent reset.

[0009] Preferably, a groove is provided at the corresponding position of the mold body and the bottom push-pull plate, and the bottom push-pull plate is slidably connected in the groove to facilitate restricting its movement.

[0010] Preferably, the pushing mechanism includes a lower mold base, which is fixedly connected to the bottom of the mold body. A push plate is slidably connected inside the lower mold base, and a guide post is fixedly connected inside the lower mold base. A return spring is sleeved on the outside of the guide post, and a push post is fixedly connected to the top of the push plate to facilitate guiding.

[0011] Preferably, the mold body has holes at the corresponding positions of the guide pillars, and there are four guide pillar return springs, which are evenly distributed on the outside of the lower mold base to facilitate position restriction and thus improve its stability.

[0012] Compared with the prior art, this utility model provides a double-tube overmolding mold, which has the following advantages:

[0013] 1. This dual-tube overmolding mold, through the core-pulling mechanism, during the first injection stage, aligns the slider insert with the primary injection runner and injects the substrate into the mold. After cooling, a preliminary product is formed, which remains fixed within the slider insert. Then, after the mold opens, the push-pull plate moves the inner slider to the inclined surface of the push block. The inner slider then switches forward to the position of the secondary overmolding core, and the runner switching device opens the secondary runner, filling the surface of the primary product with material. Simultaneously, when the mold closes, the push-pull plate resets the inner slider. This improves the processing efficiency and reduces the defect rate during production, avoiding longer production times and reducing labor and production costs.

[0014] 2. The double-tube overmolding mold, through the set push mechanism, has its guide post playing a guiding role when the mold is opened, and the reset spring moves with the mold opening direction, thereby avoiding deviation during mold opening. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the appearance and structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the left-side structure of this utility model;

[0018] Figure 3This is a schematic diagram of the external structure of the pushing mechanism and the core-pulling mechanism of this utility model;

[0019] Figure 4 This is a schematic diagram of the external structure of the core-pulling mechanism of this utility model;

[0020] Figure 5 This is a schematic diagram of the external structure of the propulsion mechanism of this utility model.

[0021] In the diagram: 1. Mold body; 2. Injection port; 3. Upper mold; 4. Pushing mechanism; 5. Core pulling mechanism; 51. Push block; 52. Slider insert; 53. Inner slider; 54. Guide block; 55. Bottom push-pull plate; 56. Inclined surface; 57. Locking block; 41. Lower mold base; 42. Push plate; 43. Guide pillar; 44. Return spring; 45. Push pillar. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] Example 1:

[0025] Based on current technology, traditional methods require a second molding process after the first demolding. This results in low efficiency and a high defect rate, leading to longer production times and increased labor and production costs. Please refer to [link to relevant documentation]. Figure 1-5 This utility model provides a technical solution: a double-tube rubber coating processing mold, including a mold body 1, an upper mold 3 fixedly connected to the top of the mold body 1, an injection port 2 fixedly connected to the top of the upper mold 3, a core pulling mechanism 5 inside the mold body 1, and a pushing mechanism 4 at the bottom of the mold body 1.

[0026] The core-pulling mechanism 5 includes a pry block 51, which is fixedly connected to the back of the upper mold 3. A slope 56 is fixedly connected to the front of the pry block 51. A bottom push-pull plate 55 is slidably connected inside the mold body 1. An inner slider 53 is fixedly connected to the top of the bottom push-pull plate 55. A slider insert 52 is fixedly connected to the top of the inner slider 53. A guide block 54 is fixedly connected inside the mold body 1. A locking block 57 is fixedly connected to the outside of the mold body 1, which facilitates switching the position of the secondary corner core.

[0027] Furthermore, a groove is provided at the corresponding position of the mold body 1 and the inner slider 53, and the inner slider 53 is slidably connected in the groove to facilitate its guiding function.

[0028] Furthermore, the upper mold 3 has a groove at the corresponding position of the lever 51, and the lever 51 is fixedly connected in the groove for easy subsequent reset.

[0029] Furthermore, a groove is provided at the corresponding position of the mold body 1 and the bottom push-pull plate 55, and the bottom push-pull plate 55 is slidably connected in the groove to restrict its movement position.

[0030] Example 2:

[0031] Based on the existing issues regarding the need for guidance from existing technologies, please refer to [link / reference]. Figure 5 Furthermore, in conjunction with Embodiment 1, it is further found that the pushing mechanism 4 includes a lower mold base 41, which is fixedly connected to the bottom of the mold body 1. A push plate 42 is slidably connected inside the lower mold base 41, and a guide post 43 is fixedly connected inside the lower mold base 41. A reset spring 44 is sleeved on the outside of the guide post 43, and a push post 45 is fixedly connected to the top of the push plate 42 to facilitate guiding.

[0032] Furthermore, holes are provided at the corresponding positions of the mold body 1 and the guide pillar 43, and there are four return springs 44 for the guide pillar 43. The return springs 44 for the guide pillar 43 are evenly distributed on the outside of the lower mold base 41 to facilitate position restriction and thus improve its stability.

[0033] In actual operation, when the device is used, firstly, through the core-pulling mechanism 5, during the first injection stage, its bottom push-pull plate 55 drives the inner slider 53 to move to the first injection position. The push block 51 is in the initial state, the slider insert 52 is aligned with the first injection channel, and the injection molding machine injects the substrate. After cooling, a preliminary product is formed. At this time, the product is still fixed in the slider insert 52. Then, after the mold opens, the bottom push-pull plate 55 drives the inner slider 53 to move to the action area of ​​the inclined surface 56 of the push block 51. The inner slider 53 switches forward to the secondary overmolding core position. The slider is positioned by the guide block 54 and the locking block 57 to ensure the secondary overmolding core position. The secondary injection cavity is completely fitted with the primary product. Then, the overmolding material is injected through the existing injection molding machine. The flow channel switching device opens the secondary flow channel, and the material fills the surface of the primary product. At the same time, when the mold is closed, the bottom push plate 55 drives the inner slider 53 to reset. Thus, the secondary overmolding without leaving the cavity after the primary injection eliminates human intervention error, thereby improving the processing efficiency of the processed parts during the production process, avoiding longer production time, and reducing labor and production costs. Furthermore, through the set push mechanism 4, the guide post 43 plays a guiding role when the mold is opened, and the reset spring 44 moves with the mold opening direction, thereby avoiding deviations during mold opening.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A double tube encapsulation processing die comprising a die body (1), characterized in that: The top of the mold body (1) is fixedly connected with an upper mold (3), the top of the upper mold (3) is fixedly connected with an injection port (2), the inside of the mold body (1) is provided with a core pulling mechanism (5), and the bottom of the mold body (1) is provided with a pushing mechanism (4). The core pulling mechanism (5) comprises a dial block (51), the dial block (51) is fixedly connected to the back of the upper mold (3), the front of the dial block (51) is fixedly connected with an inclined plane (56), the inside of the mold body (1) is slidably connected with a bottom push-pull plate (55), the top of the bottom push-pull plate (55) is fixedly connected with an inner sliding block (53), the top of the inner sliding block (53) is fixedly connected with a sliding block insert (52), the inside of the mold body (1) is fixedly connected with a guide block (54), and the outside of the mold body (1) is fixedly connected with a locking block (57).

2. A double tube encapsulation processing mold according to claim 1, characterized by: The mold body (1) is provided with a groove at a position corresponding to the inner sliding block (53), and the inner sliding block (53) is slidably connected in the groove.

3. A double tube encapsulation processing mold according to claim 1, characterized by: The upper mold (3) is provided with a groove at a position corresponding to the dial block (51), and the dial block (51) is fixedly connected in the groove.

4. The dual tubing encapsulation process mold of claim 1, wherein: The mold body (1) is provided with a groove at a position corresponding to the bottom push-pull plate (55), and the bottom push-pull plate (55) is slidably connected in the groove.

5. The dual tubing encapsulation process mold of claim 1, wherein: The pushing mechanism (4) comprises a lower mold base (41), the lower mold base (41) is fixedly connected to the bottom of the mold body (1), the inside of the lower mold base (41) is slidably connected with a push plate (42), the inside of the lower mold base (41) is fixedly connected with a guide column (43), the outside of the guide column (43) is sleeved with a reset spring (44), and the top of the push plate (42) is fixedly connected with a push column (45).

6. A double-tube encapsulation processing mold according to claim 5, characterized by: The mold body (1) is provided with a hole at a position corresponding to the guide column (43), and the number of reset springs (44) of the guide column (43) is four, and the reset springs (44) of the guide column (43) are evenly distributed outside the lower mold base (41).

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