Mold structure facilitating mold opening of long pipe product

Abstract

The utility model relates to the technical field of injection molds, in particular to a mold structure convenient for mold opening of a long pipe product, which comprises an upper mold unit and a lower mold unit, a molding seat and a pulling slide are arranged in the upper mold unit, a molding cavity is arranged in the molding seat, and a push block is arranged in the molding cavity; wherein one side of the pulling slide is inserted into the forming cavity, and a driving assembly used for driving the pulling slide to transversely move is further arranged in the upper die unit; according to the utility model, by adopting the pulling slide which moves from the side surface, the wedge table drives the pulling slide to move outwards during demolding, the peripheral rubber position of the product firstly releases the peripheral wrapping force in the lateral direction, and then after the upper mold unit is separated from the lower mold unit, the product is ejected out by the push block and can be discharged from the interior of the forming seat by rotating the product; the problems that an existing long pipe product is small in film outlet angle, and demolding dragging damage occurs can be effectively solved, the overall structural design is simple, and the production applicability of injection molding products is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a mold structure which is convenient for opening molds of long tube products. Background Art

[0002] An injection mold is a mold used for injection molding, usually consisting of an upper mold and a lower mold. The design and manufacture of injection molds are very critical and directly affect the quality and production efficiency of injection molded products. During the injection molding process, plastic particles are heated and melted and then injected into the mold. After cooling and solidification, they are formed into the desired product. They are widely used in the fields of automobiles, home appliances, electronic products, daily necessities, etc., and are an indispensable and important tool in modern industrial production.

[0003] In the design of plastic products, it is usually necessary to have a mold release angle on the inner and outer sides of the edge in order to easily release the product from the mold. At present, in the production of long tube injection molding products, due to the small mold release angle of long tube products, it is easy to cause dragging and lifting when opening the mold. Therefore, there are still certain problems in actual use. Based on this, in order to meet the injection molding needs of long tube products, we propose a mold structure that is convenient for long tube products to be opened. Utility Model Content

[0004] The utility model aims to solve the shortcomings of the prior art that long tube products have a small demoulding angle, are prone to dragging and top height during mold opening, and proposes a mold structure that is convenient for mold opening of long tube products.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A mold structure is designed to facilitate the mold opening of long tube products, including an upper mold unit and a lower mold unit, wherein the upper mold unit is provided with a molding seat and a drawer, wherein a molding cavity is provided inside the molding seat, and a push block is provided inside the molding cavity;

[0007] One side of the drawer is plugged into the molding cavity, and a driving component for driving the drawer to move laterally is also provided inside the upper mold unit;

[0008] A mold core is arranged above the lower mold unit, and the mold core is placed in the molding cavity for molding the product.

[0009] Furthermore, the push block protrudes from the upper inner side of the molding cavity, and when the upper mold unit and the lower mold unit are separated, the push block drives the product to move upward.

[0010] Furthermore, the driving assembly includes a contact plate, and a wedge platform is fixedly installed on the inner side of the contact plate, wherein the outer side of the withdrawal position is provided with a driving inclined surface adapted to the wedge platform.

[0011] Furthermore, a groove is formed on the inner side surface of the abutment plate, a protrusion placed in the groove is fixed on the side surface of the wedge stage, and the wedge stage is fixed to the abutment plate via a fastener.

[0012] Furthermore, the withdrawing position includes an inclined surface portion and a cross bar portion, a through hole for placing the cross bar portion is opened on the side of the forming seat, and the inclined surface portion is in contact and fit with the wedge platform.

[0013] Furthermore, the top and bottom of the side of the forming seat are provided with avoidance openings, and two guide arms are arranged on the end surface of the inclined portion, and the two guide arms slide in the two avoidance openings respectively.

[0014] The utility model proposes a mold structure that is convenient for opening the mold of a long tube product. The beneficial effect is that: in the utility model, a laterally movable drawer is adopted. During demoulding, the drawer is driven by the wedge table to move outward, and the peripheral glue position of the product first removes the peripheral tightening force laterally. Thereafter, after the upper mold unit is separated from the lower mold unit, the product is ejected by the push block, and the product can be rotated to be ejected from the inside of the molding seat. This can effectively solve the current problems of small film outlet angles of long tube products and demoulding dragging. The overall structural design is simple, and the production applicability of injection molded products is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2 It is a cross-sectional view of the utility model;

[0017] Figure 3 for Figure 2 A schematic diagram of the enlarged structure of area A;

[0018] Figure 4 The product structure of the utility model is shown in FIG. Figure 1 ;

[0019] Figure 5 The product structure of the utility model is shown in FIG. Figure 2 .

[0020] In the figure: 1. upper mold unit; 11. molding seat; 111. avoidance; 12. withdrawal position; 121. inclined surface; 122. cross bar; 123. guide arm; 13. molding cavity; 14. push block; 15. resistance plate; 16. wedge platform; 17. driving inclined surface; 18. through hole; 2. lower mold unit; 21. mold core; 3. product. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Reference Figure 1-5 This is an implementation of the utility model, which discloses a mold structure that is convenient for opening a mold for a long tube product. Specifically, the mold includes an upper mold unit 1 and a lower mold unit 2. Other structures of the upper mold unit 1 and the lower mold unit 2, such as water cooling, positioning and guiding structures, can adopt existing technical structures, which will not be described in detail here. The upper mold unit 1 is provided with a molding seat 11 and a drawer 12. A molding cavity 13 is provided inside the molding seat 11, and a push block 14 is provided inside the molding cavity 13;

[0023] One side of the drawer 12 is plugged into the molding cavity 13, and a driving component for driving the drawer 12 to move laterally is also provided inside the upper mold unit 1;

[0024] A mold core 21 is disposed above the lower mold unit 2 , and the mold core 21 is placed in the molding cavity 13 for molding the product 3 .

[0025] In some embodiments, the push block 14 in the utility model protrudes from the inner upper side of the molding cavity 13. When the upper mold unit 1 and the lower mold unit 2 are separated, the push block 14 drives the product 3 to move upward. After the product 3 moves upward, the product 3 can be rotated to be removed.

[0026] Furthermore, in the present embodiment, the driving assembly includes a contact plate 15, on the inner side of which a wedge platform 16 is fixedly mounted, wherein the outer side of the withdrawal position 12 is provided with a driving inclined surface 17 adapted to the wedge platform 16, that is, when the upper mold unit 1 moves downward, when the withdrawal position 12 is in place, the contact plate 15 continues to move downward, thereby driving the withdrawal position 12 to move laterally. Of course, those skilled in the art know that in the present embodiment, a T-shaped groove begins to be provided on the driving inclined surface 17 of the withdrawal position 12, and the end of the wedge platform 16 is provided with a T-shaped slider structure to realize synchronous movement of the withdrawal position 12.

[0027] On the basis of the above-mentioned embodiment, a groove is provided on the inner side surface of the contact plate 15 in the utility model, and a protrusion placed in the groove is fixed on the side surface of the wedge stage 16. The wedge stage 16 is fixed to the contact plate 15 by fasteners, that is, the wedge stage 16 described in this embodiment is designed as a detachable structure. After working for a long time, if the wedge stage 16 is worn, the wedge stage 16 can be removed and replaced by removing the above-mentioned bolts. At the same time, the groove and protrusion structure can facilitate the installation and positioning of the wedge stage 16, thereby improving the convenience of assembly and the accuracy of positioning.

[0028] To go further, the withdrawing position 12 in this embodiment includes a sloped portion 121 and a cross bar portion 122. A through hole 18 for placing the cross bar portion 122 is provided on the side of the forming seat 11. The sloped portion 121 is in contact and fit with the wedge platform 16. It should be pointed out that in this embodiment, the above-mentioned T-shaped slide groove is provided on the sloped portion 121. The sloped portion 121 and the cross bar portion 122 can be fixedly connected or detachably connected by bolts.

[0029] Furthermore, in this embodiment, in consideration of the movement guiding capability of the withdrawal position 12, avoidance openings 111 are opened on the top and bottom of the side of the forming seat 11, and two guide arms 123 are arranged on the end surface of the inclined portion 121. The two guide arms 123 slide in the two avoidance openings 111 respectively. The design of the two guide arms 123 and the two avoidance openings 111 is used to guide the movement of the withdrawal position 12, thereby avoiding the problem of shaking of the end of the withdrawal position 12 when it is interfered by the inclined surface of the wedge platform 16.

[0030] In summary, in the utility model, a laterally movable withdrawal position 12 is adopted. During demolding, the wedge platform 16 drives the withdrawal position 12 to move outward, and the peripheral glue position of the product first releases the peripheral tightening force laterally. Thereafter, after the upper mold unit 1 is separated from the lower mold unit 2, the push block 14 pushes the product 3 out, and the product 3 can be rotated to be taken out from the inside of the molding seat 11, which can effectively solve the problems of small film discharge angle of the current long tube product and demolding drag. The overall structural design is simple, which improves the production applicability of injection molded products.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A mold structure for facilitating mold opening of a long tube product, comprising an upper mold unit (1) and a lower mold unit (2), characterized in that: The upper mold unit (1) is provided with a molding seat (11) and a drawer (12); a molding cavity (13) is provided inside the molding seat (11); and a push block (14) is provided inside the molding cavity (13); One side of the drawer (12) is plugged into the molding cavity (13), and a driving component for driving the drawer (12) to move laterally is also provided inside the upper mold unit (1); A mold core (21) is arranged above the lower mold unit (2), and the mold core (21) is placed in the molding cavity (13) for molding the product (3).

2. A mold structure for facilitating mold opening of long tube products according to claim 1, characterized in that: The push block (14) protrudes from the upper inner side of the molding cavity (13); when the upper mold unit (1) and the lower mold unit (2) are separated, the push block (14) drives the product (3) to move upward.

3. The mold structure for facilitating mold opening of long tube products according to claim 1, characterized in that: The driving assembly comprises a contact plate (15), on the inner side of which a wedge platform (16) is fixedly mounted, wherein the outer side of the withdrawal position (12) is provided with a driving inclined surface (17) matched with the wedge platform (16).

4. A mold structure for facilitating mold opening of long tube products according to claim 3, characterized in that: The inner side surface of the abutment plate (15) is provided with a groove, and the side surface of the wedge platform (16) is fixed with a protrusion placed in the groove, and the wedge platform (16) is fixed to the abutment plate (15) by a fastener.

5. The mold structure for facilitating mold opening of long tube products according to claim 3, characterized in that: The withdrawing position (12) comprises an inclined surface portion (121) and a crossbar portion (122); a through hole (18) for placing the crossbar portion (122) is provided on the side of the forming seat (11); and the inclined surface portion (121) is in contact and fit with the wedge platform (16).

6. A mold structure for facilitating mold opening of long tube products according to claim 5, characterized in that: The top and bottom of the side of the molding seat (11) are provided with avoidance openings (111), and two guide arms (123) are arranged on the end surface of the inclined surface portion (121), and the two guide arms (123) slide in the two avoidance openings (111) respectively.

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