Linkage core-pulling assembly with multiple sliding blocks

Abstract

The utility model discloses a multi-slider linkage core-pulling assembly which comprises an upper mold core, a lower mold core, a first side-pulling slider and a second side-pulling slider, the first side-pulling slider and the second side-pulling slider are oppositely arranged, and a mounting through hole extending downwards in an inclined mode is formed in the area, located between the first side-pulling slider and the second side-pulling slider, of the upper surface of the lower mold core. An inclined pulling sliding block is slidably mounted in the mounting through hole, the lower end of the inclined pulling sliding block penetrates out of the mounting through hole and is slidably connected with an inclined pulling sliding block seat, an inclined pulling sliding groove is formed in the end, close to the inclined pulling sliding block, of the inclined pulling sliding block seat, and an inclined guide groove is formed in the lower surface of the inclined pulling sliding block seat. The upper end of the vertical part of the inclined pulling shovel base is provided with an inclined part embedded into the inclined guide groove, and the upper end of the inclined part inclines towards the direction close to the inclined pulling sliding block. The sliding block wedge-caulking mechanism has good stability, can realize continuous wedge-caulking positioning of the sliding block in the mold closing injection molding process, is stable in pressure bearing performance, and avoids the situation that the appearance of a finished product is unqualified due to deviation of the sliding block.

Description

Technical Field

[0001] The utility model relates to a multi-slider linkage core-pulling component, belonging to the technical field of injection molds. Background Art

[0002] Currently, the production of headphones requires injection molding of the headphone shell. Injection molds are typically suitable for thermoplastic molding. Using the hot melt principle of thermoplastics, the molten plastic is injected into the mold cavity through an injection molding machine. The plastic is then cooled and formed, and the mold is opened to remove the plastic product. Injection molding requires both a fixed mold and a movable mold. Due to the high aesthetic requirements for headphones, existing mold structures cannot meet these high aesthetic requirements. Utility Model Content

[0003] The purpose of the utility model is to provide a multi-slider linkage core-pulling assembly, which can achieve continuous wedging and positioning of the sliders during the mold closing and injection molding process while meeting the requirements of the precise appearance of the product after molding, and has stable pressure-bearing performance, thereby avoiding the situation where the appearance of the finished product is unqualified due to slider deviation.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a multi-slide linkage core-pulling assembly, comprising: an upper mold core, a lower mold core and a first side-pulling slider and a second side-pulling slider arranged opposite to each other, the first side-pulling slider and the second side-pulling slider each being able to approach or move away from each other in a horizontal direction, and the ends of the first side-pulling slider and the second side-pulling slider that are close to each other can be slidably embedded in the lower mold core, and an upper surface of the lower mold core and an area between the first side-pulling slider and the second side-pulling slider are provided with a mounting through hole that extends obliquely downward, and an oblique-pulling slider is slidably mounted in the mounting through hole, and when in a mold closing state, a cavity for molding a product is formed between the end surface of the upper end of the oblique-pulling slider and the upper mold core, the lower mold core and the first side-pulling slider and the second side-pulling slider that are close to each other;

[0005] The cam is secured to the bottom of the slide and is adapted to engage the slide member, with the cam being secured to the bottom of the slide and having a secure connection therebetween.

[0006] The further improved scheme in the above technical scheme is as follows:

[0007] 1. In the above solution, the cross-sectional width of the vertical portion of the oblique shovel base is smaller than the cross-sectional width of the inclined portion thereof.

[0008] 3. In the above solution, when in the mold closing state, the upper end of the inclined portion of the inclined shovel base passes through an inclined guide groove that runs through from top to bottom.

[0009] 4. In the above solution, the upper surface of the lower mold core is provided with a first sliding groove and a second sliding groove respectively cooperating with the first side pull-out slider and the second side pull-out slider.

[0010] 5. In the above solution, the oblique withdrawal sliding block and the two side walls of the oblique withdrawal chute are connected by a set of guide protrusions and guide grooves.

[0011] 6. In the above solution, a glue injection channel communicating with the cavity is provided on the upper mold core.

[0012] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0013] The utility model discloses a linkage core-pulling assembly with multiple slides, wherein the upper surface of the lower mold core is provided with a mounting through hole extending obliquely downward in the area between the first side-pulling slide block and the second side-pulling slide block, and an oblique-pulling slide block is slidably installed in the mounting through hole. When in the mold closing state, the end surface of the upper end of the oblique-pulling slide block and the upper mold core, the lower mold core and the first side-pulling slide block and the second side-pulling slide block close to each other form a cavity for molding products. The lower end of the oblique-pulling slide block passes through the mounting through hole and is slidably connected to an oblique-pulling slide block seat that can slide in the horizontal direction. The oblique-pulling slide block seat is provided with an oblique-pulling groove at one end close to the oblique-pulling slide block, and the oblique-pulling groove for the lower end of the oblique-pulling slide block to be embedded is lower than the other end close to the lower mold core. The cam is secured to the bottom of the cam and is secured to the bottom of the cam by a spring which is secured to the bottom of the cam. The cam is secured to the bottom of the cam and is secured to the bottom of the cam. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Attachment Figure 1 This is a schematic diagram of the external structure of the multi-slider linkage core-pulling assembly of the utility model;

[0015] Attachment Figure 2 for Figure 1 Schematic diagram of the cross-section structure along the DD' direction;

[0016] Attachment Figure 3 for Figure 1 Schematic diagram of the cross-section structure along the AA' direction;

[0017] Attachment Figure 4 This is a schematic diagram of the overall internal structure of the linked core-pulling assembly of the multi-slider of the utility model.

[0018] In the above drawings: 1. inclined guide groove; 2. oblique pull-out shovel base; 21. inclined portion; 22. vertical portion; 3. upper mold core; 31. glue injection channel; 4. lower mold core; 41. mounting through hole; 42. stop step surface; 51. first side pull-out slider; 52. second side pull-out slider; 53. positioning protrusion; 54. positioning groove; 7. oblique pull-out slider; 71. flange surface; 8. oblique pull-out slider seat; 81. oblique pull-out groove; 91. guide protrusion; 92. guide groove; 10. cavity. DETAILED DESCRIPTION

[0019] The present invention can be further understood through the following specific embodiments, but they are not intended to limit the present invention.

[0020] Embodiment 1: A multi-slider linkage core-pulling assembly comprises: an upper mold core 3, a lower mold core 4 and a first side-pulling slider 51 and a second side-pulling slider 52 arranged opposite to each other, wherein the first side-pulling slider 51 and the second side-pulling slider 52 can each move closer to or farther away from each other in the horizontal direction, and the ends of the first side-pulling slider 51 and the second side-pulling slider 52 that are close to each other can be slidably embedded in the lower mold core 4, and a mounting through hole 41 that extends obliquely downward is provided on the upper surface of the lower mold core 4 and is located between the first side-pulling slider 51 and the second side-pulling slider 52, in which an oblique-pulling slider 7 is slidably mounted, and when in a mold closing state, a cavity 10 for molding a product is formed between the end surface of the upper end of the oblique-pulling slider 7 and the upper mold core 3, the lower mold core 4 and the first side-pulling slider 51 and the second side-pulling slider 52 that are close to each other;

[0021] The lower end of the oblique pull-out slider 7 passes through the mounting through-hole 41 and is slidably connected to an oblique pull-out slider seat 8 that can slide in the horizontal direction. The oblique pull-out slider seat 8 is provided with an inclined oblique pull-out slot 81 at one end close to the oblique pull-out slider 7, and the oblique pull-out slot 81 for the lower end of the oblique pull-out slider 7 to be embedded is lower than the other end near the lower mold core 4. The oblique pull-out slider 7 whose lower end surface slides in contact with the bottom surface of the oblique pull-out slot 81 is connected to the side wall of the oblique pull-out slot 81 by at least one group of guide protrusions 91 and guide grooves 92. An oblique guide slot 1 is provided on the lower surface of the other end of the oblique pull-out slider seat 8, and the upper end of the vertical portion 22 of the oblique pull-out shovel base 2 that can move in the vertical direction has an inclined portion 21 embedded in the oblique guide slot 1, and the upper end of the inclined portion 21 that slides with the inner wall of the oblique guide slot 1 is inclined toward the direction close to the oblique pull-out slider 7.

[0022] The cross-sectional width of the vertical portion 22 of the oblique shovel base 2 is smaller than the cross-sectional width of the inclined portion 21 thereof.

[0023] When in the mold closing state, the upper end of the inclined portion 21 of the inclined shovel base 2 passes through the inclined guide groove 1 which passes through from top to bottom.

[0024] The upper surface of the lower mold core 4 is provided with a first sliding groove and a second sliding groove respectively cooperating with the first side-drawing slider 51 and the second side-drawing slider 52 .

[0025] The oblique-drawing sliding block 7 and the two side walls of the oblique-drawing sliding groove 81 are respectively connected by a set of guide protrusions 91 and guide grooves 92 .

[0026] The upper mold core 3 is provided with a glue injection channel 31 communicating with the mold cavity 10 .

[0027] Embodiment 2: A multi-slider linkage core-pulling assembly comprises: an upper mold core 3, a lower mold core 4 and a first side-pulling slider 51 and a second side-pulling slider 52 arranged opposite to each other, wherein the first side-pulling slider 51 and the second side-pulling slider 52 can each move closer to or farther away from each other in the horizontal direction, and the ends of the first side-pulling slider 51 and the second side-pulling slider 52 that are close to each other can be slidably embedded in the lower mold core 4, and a mounting through hole 41 that extends obliquely downward is provided on the upper surface of the lower mold core 4 and is located between the first side-pulling slider 51 and the second side-pulling slider 52, in which an oblique-pulling slider 7 is slidably mounted, and when in the mold closing state, a cavity 10 for molding a product is formed between the end surface of the upper end of the oblique-pulling slider 7 and the upper mold core 3, the lower mold core 4 and the first side-pulling slider 51 and the second side-pulling slider 52 that are close to each other;

[0028] The lower end of the oblique pull-out slider 7 passes through the mounting through-hole 41 and is slidably connected to an oblique pull-out slider seat 8 that can slide in the horizontal direction. The oblique pull-out slider seat 8 is provided with an inclined oblique pull-out slot 81 at one end close to the oblique pull-out slider 7, and the oblique pull-out slot 81 for the lower end of the oblique pull-out slider 7 to be embedded is lower than the other end near the lower mold core 4. The oblique pull-out slider 7 whose lower end surface slides in contact with the bottom surface of the oblique pull-out slot 81 is connected to the side wall of the oblique pull-out slot 81 by at least one group of guide protrusions 91 and guide grooves 92. An oblique guide slot 1 is provided on the lower surface of the other end of the oblique pull-out slider seat 8, and the upper end of the vertical portion 22 of the oblique pull-out shovel base 2 that can move in the vertical direction has an inclined portion 21 embedded in the oblique guide slot 1, and the upper end of the inclined portion 21 that slides with the inner wall of the oblique guide slot 1 is inclined toward the direction close to the oblique pull-out slider 7.

[0029] The cross-sectional width of the vertical portion 22 of the oblique shovel base 2 is smaller than the cross-sectional width of the inclined portion 21 thereof.

[0030] The upper surface of the lower mold core 4 is provided with a first sliding groove and a second sliding groove respectively cooperating with the first side-drawing slider 51 and the second side-drawing slider 52 .

[0031] The upper mold core 3 is provided with a glue injection channel 31 communicating with the mold cavity 10 .

[0032] When the above-mentioned multi-slider linkage core-pulling assembly is used, while meeting the precise appearance requirements of the product after molding through three sets of core-pulling sliders, the sliders are driven mechanically, which not only has good stability, but also can achieve continuous wedging and positioning of the sliders during the mold closing and injection molding process and stable pressure-bearing performance, thereby avoiding the situation where the appearance of the finished product is unqualified due to slider offset.

[0033] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those familiar with the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications based on the spirit of the present invention are intended to be included in the scope of protection of the present invention.

Claims

1. A multi-slider linkage core pulling assembly, comprising: The upper mold core (3), the lower mold core (4) and the first side-drawing slider (51) and the second side-drawing slider (52) arranged opposite to each other, the first side-drawing slider (51) and the second side-drawing slider (52) can each move closer to or farther away from each other in the horizontal direction, and are characterized in that: the ends of the first side-drawing slider (51) and the second side-drawing slider (52) that are close to each other can be slidably embedded in the lower mold core (4), and an installation through hole (41) that extends obliquely downward is provided on the upper surface of the lower mold core (4) and in the area between the first side-drawing slider (51) and the second side-drawing slider (52), and an inclined-drawing slider (7) is slidably installed in the installation through hole (41), and when in the mold closing state, a cavity (10) for molding a product is formed between the end surface of the upper end of the inclined inclined-drawing slider (7) and the upper mold core (3), the lower mold core (4) and the first side-drawing slider (51) and the second side-drawing slider (52) that are close to each other; The lower end of the inclined pull-out slider (7) passes through the mounting through hole (41) and is slidably connected to an inclined pull-out slider seat (8) that can slide in the horizontal direction. The inclined pull-out slider seat (8) is provided with an inclined inclined pull-out groove (81) at one end close to the inclined pull-out slider (7). The inclined pull-out groove (81) for the lower end of the inclined pull-out slider (7) to be embedded is lower than the other end at one end close to the lower mold core (4). The inclined pull-out slider (7) and the inclined pull-out slider (7) are in sliding contact with the bottom surface of the inclined pull-out groove (81). The side walls of the slide groove (81) are connected to each other through at least one set of guide protrusions (91) and guide grooves (92). An inclined guide groove (1) is provided on the lower surface of the other end of the inclined pull-out slider seat (8). The upper end of a vertical portion (22) of an inclined pull-out shovel base (2) movable in the vertical direction has an inclined portion (21) embedded in the inclined guide groove (1). The upper end of the inclined portion (21) slidably engaged with the inner wall of the inclined guide groove (1) is inclined toward the direction of approaching the inclined pull-out slider (7).

2. The multi-slider linkage core pulling assembly according to claim 1, characterized in that: The cross-sectional width of the vertical portion (22) of the oblique shovel base (2) is smaller than the cross-sectional width of the inclined portion (21) thereof.

3. The multi-slider linkage core-pulling assembly according to claim 1 or 2, characterized in that: When in the mold closing state, the upper end of the inclined portion (21) of the inclined shovel base (2) passes through an inclined guide groove (1) that passes through the upper and lower parts.

4. The multi-slider linkage core pulling assembly according to claim 1, characterized in that: The upper surface of the lower die core (4) is provided with a first sliding groove and a second sliding groove respectively cooperating with the first side-drawing slider (51) and the second side-drawing slider (52).

5. The multi-slider linkage core pulling assembly according to claim 1, characterized in that: The oblique withdrawal slide block (7) and the two side walls of the oblique withdrawal chute (81) are respectively connected by a set of guide protrusions (91) and guide grooves (92).

6. The multi-slider linkage core pulling assembly according to claim 1, characterized in that: The upper mold core (3) is provided with a glue injection channel (31) communicating with the mold cavity (10).

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