Double-color movable mold soft rubber forming structure

Abstract

The utility model belongs to the technical field of injection molds, and provides a double-color movable mold soft rubber forming structure which comprises a movable mold assembly and a fixed mold assembly, a movable mold core block is arranged on the movable mold assembly, and a fixed mold core block is arranged on the fixed mold assembly. Compared with the prior art, the utility model has the advantages that the first slide block is inserted through the hard rubber side guide assembly, so that the movable mold core block, the fixed mold core block and the first slide block are enclosed to form the product cavity, the product cavity can form a surface B of a hard rubber product through injection molding, then the mold is opened, the movable mold core block rotates relative to the fixed mold core block, and the surface B of the hard rubber product is formed. When the mold is closed, the first sliding block is inserted into the soft rubber side guide assembly, and the first sliding block moves along the center position far away from the movable mold core block, so that a gap is formed between the surface B of a hard rubber product and the first sliding block, material liquid is injected into the gap to form soft rubber of the surface B ', the injection molding precision can be ensured, and the quality of the formed product can also be ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of injection molds, and in particular relates to a double-color movable mold soft rubber molding structure. Background Art

[0002] Two-color injection molding refers to the combination of two different colors and different types of plastics, mostly a soft plastic and a hard plastic, in a certain order, and the two plastics are organically combined to form a complete product. Two-color parts have been widely used in automotive accessories, and the design of two-color products is becoming more and more diversified and sophisticated.

[0003] like Figure 6 As mentioned above, after the product is injection molded, it is necessary to add B' side soft glue on the basis of B side hard glue. The conventional injection molding method is to take out the product after the B side hard glue is molded, and then add the injection molding of B' side soft glue through other molds. This injection molding method not only has poor stability, but also cannot guarantee the product qualification rate. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a two-color movable mold soft rubber molding structure with good practicality and simple structure in view of the current status of the prior art.

[0005] The technical solution adopted by the utility model to solve the above technical problems is: a two-color movable mold soft rubber molding structure is proposed, including: a movable mold component and a fixed mold component, the movable mold component is provided with a movable model core block, the fixed mold component is provided with a fixed model core block, and the movable mold component is characterized in that the movable mold component can drive the movable model core block to move and rotate relative to the fixed model core block, wherein,

[0006] The moving model core block is provided with a first slider, and the fixed model core block is provided with a hard rubber side guide component and a soft rubber side guide component, and both the hard rubber side guide component and the soft rubber side guide component can be inserted into the first slider;

[0007] When the first slider is inserted into the hard-plastic side guide assembly, the dynamic model core block, the fixed model core block and the first slider enclose a product cavity, and the product cavity can be injection molded to form the B surface of the hard-plastic product;

[0008] When the soft-rubber side guide assembly is inserted with the first slider, the first slider moves away from the center position of the dynamic model core block, so that a gap is formed between the B surface of the hard-rubber product and the first slider.

[0009] In the above-mentioned two-color movable mold soft rubber molding structure, an inclined wedge groove is opened on the first sliding block, the hard rubber side guide component has a hard rubber side cavity guide block, and the soft rubber side cavity guide block has a soft rubber side cavity guide block, and the soft rubber side cavity guide block and the hard rubber side cavity guide block are both movably inserted into the inclined wedge groove.

[0010] In the above-mentioned two-color movable mold soft rubber molding structure, the hard rubber side guide component has a first clamping block, and the hard rubber side guide component has a second clamping block, and the first clamping block and the second clamping block both movably abut against the first slider.

[0011] In the above-mentioned two-color movable mold soft rubber molding structure, a positioning groove is provided on the movable mold assembly, and a positioning part is provided on the soft rubber side cavity guide block, and the positioning part is inserted into the inclined wedge groove and connected to the positioning groove.

[0012] In the above-mentioned two-color dynamic mold soft rubber molding structure, a first inclined wedge surface is arranged on the first clamping block, a second inclined wedge surface is arranged on the second clamping block, and a third inclined wedge surface is arranged on the first sliding block. Both the first inclined wedge surface and the second inclined wedge surface can be connected to the third inclined wedge surface.

[0013] In the above-mentioned two-color movable mold soft rubber molding structure, the first sliding block is provided with a slide groove along the length direction of the movable model core block, and the movable model core block is provided with a slide rail, and the slide rail is slidably connected with the slide groove.

[0014] In the above-mentioned two-color movable mold soft rubber molding structure, a first limiting portion is arranged on the slide rail, and a second limiting portion is arranged on the slide groove, and the first limiting portion and the second limiting portion are movably abutted against each other.

[0015] In the above-mentioned two-color movable mold soft rubber molding structure, a material hole is opened on the first sliding block, a spring is arranged in the material hole, one end of the spring is connected to the material hole, and the other end of the spring is against the movable mold core block.

[0016] In the above-mentioned two-color movable mold soft rubber molding structure, a second slider is arranged on the movable model core block, and the second slider and the first slider are symmetrically arranged along the center position of the movable model core block, and the glue side guide component and the soft glue side guide component can be inserted into the second slider.

[0017] Compared with the prior art, the advantage of the utility model lies in that the first slider is inserted through the hard rubber side guide component, so that the dynamic model core block, the fixed model core block and the first slider are enclosed to form a product cavity, and the product cavity can be injection molded to form the B side of the hard rubber product. Then the mold is opened, the dynamic model core block rotates relative to the fixed model core block, and when the mold is closed, the first slider is inserted into the soft rubber side guide component, and the first slider moves away from the center position of the dynamic model core block, so that a gap is formed between the B side of the hard rubber product and the first slider, and the gap is injected with liquid to form the soft rubber on the B' side, which can not only ensure the injection molding accuracy, but also ensure the quality of the molded product. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a structural cross-sectional view of a hard rubber side guide assembly with a first sliding block inserted therein;

[0019] Figure 2 is a structural cross-sectional view of the soft-rubber side guide assembly with the first sliding block inserted;

[0020] Figure 3 It is a structural schematic diagram of the core block of the dynamic model;

[0021] Figure 4 is a schematic diagram of the structure of the first sliding block and the hard rubber side guide assembly;

[0022] Figure 5 It is a structural schematic diagram of a fixed model core block.

[0023] Figure 6 It is a structural diagram of the product.

[0024] In the figure,

[0025] 1. Moving model core block; 100. Positioning groove; 101. Slide rail; 102. First limiting part;

[0026] 2. Determine the model core block;

[0027] 3. Hard rubber side guide assembly; 300. Hard rubber side cavity guide block; 301. First abutting block; 302. First inclined wedge surface;

[0028] 4. Soft rubber side guide assembly; 400. Soft rubber side cavity guide block; 401. Second abutting block; 402. Positioning portion; 403. Second inclined wedge surface;

[0029] 5. first slider; 500. inclined wedge groove; 501. third inclined wedge surface; 502. slide groove; 503. second position limiting part; 504. material hole; 505. spring;

[0030] 6. Second slider;

[0031] 7. Gap. DETAILED DESCRIPTION

[0032] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0033] like Figures 1 to 6 As shown, the two-color movable mold soft rubber molding structure comprises: a movable mold assembly and a fixed mold assembly, wherein a movable model core block 1 is arranged on the movable mold assembly, and a fixed model core block 2 is arranged on the fixed mold assembly, and the movable mold assembly can drive the movable model core block 1 to move and rotate relative to the fixed model core block 2, wherein a first slider 5 is arranged on the movable model core block 1, and a hard rubber side guide assembly 3 and a soft rubber side guide assembly 4 are arranged on the fixed model core block 2, and both the hard rubber side guide assembly 3 and the soft rubber side guide assembly 4 can be inserted into the first slider 5; when the hard rubber side guide assembly 3 is inserted with the first slider 5, the movable model core block 1, the fixed model core block 2 and the first slider 5 are enclosed to form a product cavity, and the product cavity can be injection molded to form the B side of the hard rubber product; when the soft rubber side guide assembly 4 is inserted with the first slider 5, the first slider 5 moves along a position away from the center of the movable model core block 1, so that a gap 7 is formed between the B side of the hard rubber product and the first slider 5.

[0034] The movable mold assembly (not shown in the figure) can drive the movable model core block 1 to move relative to the fixed mold assembly (not shown in the figure) and the fixed model core block 2, so as to achieve mold closing and mold opening. The movable mold assembly can also drive the movable model core block 1 to rotate relative to the fixed mold assembly and the fixed model core block 2. In this embodiment, the movable mold assembly drives the movable model core block 1 to close the mold with the fixed mold assembly and the fixed model core block 2. When the hard plastic side guide assembly 3 is inserted with the first slider 5, the movable model core block 1, the fixed model core block 2 and the first slider 5 are enclosed to form a product cavity, and the slurry enters the product cavity to form the B side of the hard plastic product. After the B side of the hard plastic product is formed, the movable mold assembly drives the movable model core block 1 to move away from the fixed mold assembly and the fixed model core block 2, so as to open the mold. Then the movable mold assembly drives the movable model core block 1 relative to the fixed model core block 2. Rotate 180° to place the soft rubber side guide component 4 above the first slider 5, and then the movable mold component drives the movable model core block 1 to close the mold with the fixed mold component and the fixed model core block 2. When the soft rubber side guide component 4 is inserted with the first slider 5, the first slider 5 moves away from the center position of the movable model core block 1, so that a gap 7 is formed between the B surface of the hard rubber product and the first slider 5, and then another material liquid is injected into the gap 7 to form a soft rubber on the B' surface. The structure is stable and can effectively ensure the quality of the product after two-color injection molding.

[0035] Specifically, Figures 1 to 5As shown, the first slider 5 is provided with an inclined wedge groove 500, the hard rubber side guide component 3 has a hard rubber side cavity guide block 300, and the soft rubber side guide component 4 has a soft rubber side cavity guide block 400, and both the soft rubber side cavity guide block 400 and the hard rubber side cavity guide block 300 are movably inserted with the inclined wedge groove 500.

[0036] The hard-gel side cavity guide block 300 and the soft-gel side cavity guide block 400 are both connected to the fixed model core block 2 by bolts, and are then fixed on the fixed model core block 2. The hard-gel side cavity guide block 300 and the soft-gel side cavity guide block 400 are asymmetrically arranged along the center position of the fixed model core block 2. Since the first slider 5 can slide on the dynamic model core block 1, and the hard-gel side cavity guide block 300 and the soft-gel side cavity guide block 400 are respectively inserted with the first slider 5, the position of the first slider 5 can be limited to ensure that when the hard-gel side cavity guide block 300 is inserted with the first slider 5, the first slider 5 forms a product cavity with the dynamic model core block 1 and the fixed model core block 2, and when the soft-gel side cavity guide block 400 is inserted with the first slider 5, the first slider 5 forms a product cavity with the dynamic model core block 1 and the fixed model core block 2, and a gap 7 with a preset injection B-side soft glue can be formed between the B-side of the hard-gel product and the first slider 5.

[0037] Specifically, Figures 1 to 5 As shown, the hard rubber side guide assembly 3 has a first pressing block 301 , and the hard rubber side guide assembly 3 has a second pressing block 401 . Both the first pressing block 301 and the second pressing block 401 are movably pressed against the first sliding block 5 .

[0038] When the first slider 5 is inserted into the hard rubber side cavity guide block 300, the end face of the first slider 5 away from the dynamic model core block 1 abuts against the first clamping block 301. When the first slider 5 is inserted into the soft rubber side cavity guide block 400, the end face of the first slider 5 away from the dynamic model core block 1 abuts against the second clamping block 401. The first clamping block 301 and the second clamping block 401 are also asymmetrically arranged along the center position of the fixed model core block 2. The first clamping block 301 and the second clamping block 401 are used to limit the position of the first slider 5 to prevent the injection pressure from causing the first slider 5 to retreat, thereby ensuring the quality of the product after injection molding.

[0039] Furthermore, if Figure 2 As shown, a positioning groove 100 is provided on the movable mold assembly, and a positioning portion 402 is provided on the soft-rubber side cavity guide block 400 . The positioning portion 402 is inserted with an inclined wedge groove 500 and connected to the positioning groove 100 .

[0040] The positioning portion 402 is inserted with an inclined wedge groove 500 connected to the positioning groove 100 to ensure that the first slider 5 does not move, prevent the injection pressure from causing the first slider 5 to retreat, and ensure that the B surface of the hard plastic product can effectively perform B' surface soft plastic injection.

[0041] Furthermore, a first inclined wedge surface 302 is provided on the first clamping block 301 , a second inclined wedge surface 403 is provided on the second clamping block 401 , a third inclined wedge surface 501 is provided on the first sliding block 5 , and both the first inclined wedge surface 302 and the second inclined wedge surface 403 can be connected to the third inclined wedge surface 501 .

[0042] The first clamping block 301 is provided with a first inclined wedge surface 302 at the end near the hard rubber side cavity guide block 300, and the second clamping block 401 is provided with a second inclined wedge surface 403 at the end near the soft rubber side cavity guide block 400. The first inclined wedge surface 302 can facilitate the first clamping block 301 to push the first slider 5 to the top and limit the position, so that the first slider 5 and the dynamic model core block 1 and the fixed model core block 2 form a product cavity; the second inclined wedge surface 403 can facilitate the second clamping block 401 to push the first slider 5 to the top and limit the position, so that when the first slider 5 and the dynamic model core block 1 and the fixed model core block 2 form a product cavity, a gap 7 with the preset injection B' surface soft glue can also be formed.

[0043] Specifically, Figure 3 and Figure 4 As shown, the first sliding block 5 is provided with a slide groove 502 along the length direction of the moving model core block 1 , and the moving model core block 1 is provided with a slide rail 101 , and the slide rail 101 is slidably connected with the slide groove 502 .

[0044] The cooperation between the slide groove 502 and the slide rail 101 can ensure that the first slide block 5 moves on the moving model core block 1 .

[0045] Furthermore, if Figure 3 and Figure 4 As shown, a first limiting portion 102 is provided on the slide rail 101, and a second limiting portion 503 is provided on the slide groove 502, and the first limiting portion 102 and the second limiting portion 503 are movably abutted against each other.

[0046] The first limiting portion 102 and the second limiting portion 503 are movably engaged with each other, so that the first slider 5 is more stable when moving on the moving model core block 1 , ensuring that the first slider 5 will not separate from the moving model core block 1 .

[0047] Specifically, Figure 3 and Figure 4 As shown, a material hole 504 is opened on the first sliding block 5 , and a spring 505 is arranged in the material hole 504 . One end of the spring 505 is connected to the material hole 504 , and the other end of the spring 505 abuts against the moving model core block 1 .

[0048] The first slider 5 is provided with a plurality of material holes 504, each of which is provided with a spring 505. The spring 505 is provided to allow the first slider 5 to have a force to separate from the product, so as to facilitate the injection of the product when the mold is closed or the demolding of the product when the mold is opened.

[0049] Specifically, Figures 1 to 5 As shown, a second slider 6 is provided on the dynamic model core block 1 , and the second slider 6 and the first slider 5 are symmetrically arranged along the center position of the dynamic model core block 1 , and the rubber side guide component and the soft rubber side guide component 4 can both be inserted into the second slider 6 .

[0050] The structure of the second slider 6 is the same as that of the first slider 5. The second slider 6 can improve the production efficiency of the product. When the soft-gel side guide component 4 is inserted with the first slider 5, the dynamic model core block 1, the fixed model core block 2 and the first slider 5 are enclosed to form a product cavity, and the soft-gel side guide component 4 is inserted on the first slider 5. When the soft-gel side guide component 4 is inserted with the first slider 5, the first slider 5, the dynamic model core block 1 and the fixed model core block 2 form a product cavity, and a gap 7 can be formed between the B surface of the hard-gel product and the first slider 5, and then the gap 7 is injected with soft glue on the B' surface. At this time, the hard-gel side guide component 3 is inserted with the second slider 6, and the dynamic model core block 1, the fixed model core block 2 and the first slider 5 are enclosed to form a product cavity, so as to form another group of hard-gel product B surface by injection molding. Such a setting can effectively improve production efficiency.

[0051] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0052] In addition, in the present invention, the descriptions of "first", "second", "one", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0053] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" 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 or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

Claims

1. A two-color dynamic mold soft rubber molding structure, comprising: A movable mold assembly and a fixed mold assembly, wherein the movable mold assembly is provided with a movable mold core block, and the fixed mold assembly is provided with a fixed mold core block, wherein the movable mold assembly can drive the movable mold core block to move and rotate relative to the fixed mold core block, wherein: The moving model core block is provided with a first slider, and the fixed model core block is provided with a hard rubber side guide component and a soft rubber side guide component, and both the hard rubber side guide component and the soft rubber side guide component can be inserted into the first slider; When the first slider is inserted into the hard-plastic side guide assembly, the dynamic model core block, the fixed model core block and the first slider enclose a product cavity, and the product cavity can be injection molded to form the B surface of the hard-plastic product; When the soft-rubber side guide assembly is inserted with the first slider, the first slider moves away from the center position of the dynamic model core block, so that a gap is formed between the B surface of the hard-rubber product and the first slider.

2. A two-color moving mold soft rubber molding structure according to claim 1, characterized in that: The first sliding block is provided with an inclined wedge groove, the hard rubber side guide component has a hard rubber side cavity guide block, and the soft rubber side guide component has a soft rubber side cavity guide block, and the soft rubber side cavity guide block and the hard rubber side cavity guide block are both movably inserted into the inclined wedge groove.

3. A two-color moving mold soft rubber molding structure according to claim 2, characterized in that: The hard rubber side guide assembly has a first pressing block, and the hard rubber side guide assembly has a second pressing block. Both the first pressing block and the second pressing block movably abut against the first sliding block.

4. A two-color moving mold soft rubber molding structure according to claim 2, characterized in that: A positioning groove is provided on the movable mold assembly, and a positioning part is provided on the soft-rubber side cavity guide block. The positioning part is inserted into the inclined wedge groove and connected with the positioning groove.

5. A two-color moving mold soft rubber molding structure according to claim 3, characterized in that: The first pressing block is provided with a first inclined wedge surface, the second pressing block is provided with a second inclined wedge surface, the first sliding block is provided with a third inclined wedge surface, and both the first inclined wedge surface and the second inclined wedge surface can be connected to the third inclined wedge surface.

6. A two-color moving mold soft rubber molding structure according to claim 1, characterized in that: The first sliding block is provided with a slide groove along the length direction of the moving model core block, and the moving model core block is provided with a slide rail, and the slide rail is slidably connected with the slide groove.

7. A two-color moving mold soft rubber molding structure according to claim 6, characterized in that: The slide rail is provided with a first limiting portion, the slide slot is provided with a second limiting portion, and the first limiting portion and the second limiting portion are movably abutted against each other.

8. The two-color moving mold soft rubber molding structure according to claim 1, characterized in that: A material hole is provided on the first sliding block, a spring is arranged in the material hole, one end of the spring is connected to the material hole, and the other end of the spring abuts against the moving model core block.

9. A two-color moving mold soft rubber molding structure according to claim 1, characterized in that: A second slider is provided on the dynamic model core block, and the second slider is symmetrically arranged with the first slider along the center position of the dynamic model core block, and the rubber side guide component and the soft rubber side guide component can be inserted into the second slider.

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