Secondary demolding mold

Abstract

The utility model discloses a secondary demolding mold. The secondary demolding mold comprises a base, a lower mold, a middle mold, an upper mold and a demolding mechanism, the lower die comprises a lower die base and a lower die core; the middle mold comprises a middle mold base and a middle mold core; the upper mold comprises an upper mold base, an upper mold core and an injection molding opening; the demolding mechanism comprises an outer demolding sliding block, an inner demolding sliding block, an inclined demolding rod, a side demolding rod and an inclined guide rod; the outer demolding slide block is arranged on the middle mold core in a sliding manner; a large guide hole is formed in the outer demolding slide block; the inner demolding slide block is obliquely arranged in the outer demolding slide block in a sliding manner; a small guide hole is formed in the inner demolding slide block; the bottom of the inclined demolding rod is arranged at one end of the inner demolding sliding block, and the top of the inclined demolding rod obliquely slides, penetrates through the outer demolding sliding block and extends into the mold cavity; the side demolding rod is arranged in the outer demolding sliding block, and one end of the side demolding rod extends into the mold cavity; the top of the inclined guide rod is arranged in the upper die core, and the bottom of the inclined guide rod movably penetrates through the large guide hole and is inserted into the small guide hole in a sliding mode.

Description

Technical Field

[0001] The utility model belongs to the technical field of injection molds, and in particular relates to a secondary demoulding mold. Background Art

[0002] Injection molds are tools for producing plastic products; they are also tools that give plastic products a complete structure and precise dimensions. Injection molds are also a processing method used in mass production of parts, mainly used in the industrial field. The injection mold process is to inject the heated and molten material into the mold cavity under high pressure, and after cooling and solidification, a molded product is obtained.

[0003] In existing injection molds, when certain structures of products require mold rods to be deeply cooperated with for molding, but the inclination direction is inconsistent with the mold opening direction, the mold rods are usually demolded by an oblique core pulling method, that is, the mold rods are automatically demolded at one time while the mold is kept in the vertical direction of opening; when the structural molding of the product is more complex, and there is more than one structural direction that requires the mold rods to be deeply cooperated with for molding and they are located on the same side of the product, the demolding method of these mold rods is often to demold them separately in succession, and all mold rods cannot be demolded at one time. Utility Model Content

[0004] The utility model provides a secondary demoulding mold to solve the above technical problems.

[0005] The solution adopted by the utility model to achieve its technical effect is:

[0006] A secondary demoulding mold, comprising a base, a lower mold, a middle mold, an upper mold and a demoulding mechanism; the lower mold comprises a lower mold base and a lower mold core; the lower mold base is arranged on the base; the lower mold core is arranged on the lower mold base; the middle mold comprises a middle mold base and a middle mold core; the middle mold base is pressed on the lower mold base; the middle mold core is arranged on the middle mold base, and the middle mold core is arranged on the top of the lower mold core; the upper mold comprises an upper mold base, an upper mold core and an injection port; the upper mold base is pressed on the top of the middle mold base; the upper mold core cover is arranged on the top of the middle mold core; the lower mold core, the middle mold core and the upper mold core are surrounded to form a mold cavity; the injection port is arranged on the top of the upper mold base, and the injection port is connected to the mold cavity; the demoulding mechanism The mold mechanism includes an outer demoulding slider, an inner demoulding slider, an oblique demoulding rod, a side demoulding rod and an oblique guide rod; the outer demoulding slider is slidably arranged on the middle mold core; the outer demoulding slider is provided with a large guide hole; the inner demoulding slider is obliquely slidably arranged in the outer demoulding slider; the inner demoulding slider is provided with a small guide hole; the bottom of the oblique demoulding rod is arranged at one end of the inner demoulding slider, and the top of the oblique demoulding rod obliquely slides through the outer demoulding slider and extends into the mold cavity; the side demoulding rod is arranged in the outer demoulding slider, and one end of the side demoulding rod extends into the mold cavity; the top of the oblique guide rod is arranged in the upper mold core, and the bottom of the oblique guide rod is movably passed through the large guide hole and slidably inserted into the small guide hole.

[0007] Preferably, a lower die rod is further provided on the top of the lower die base; and the top of the lower die rod is connected to the die cavity.

[0008] Preferably, a sliding groove is obliquely provided at the bottom of the outer demoulding slider; and the inner demoulding slider is slidably arranged in the sliding groove.

[0009] Preferably, the side wall of the slide groove is provided with a guide groove; guide blocks are provided on both sides of the inner demoulding slide block; and the guide blocks are slidably arranged in the guide groove.

[0010] Preferably, a limiting groove is provided on one side of the outer demoulding slider; a mounting hole connected to the limiting groove is provided inside the outer demoulding slider; the side demoulding rod is provided in the mounting hole; a limiting block is provided at one end of the side demoulding rod; and the limiting block is installed in the limiting groove by bolts.

[0011] Preferably, a positioning groove is provided at the top of the middle die base, and the positioning groove is adjacent to the slide groove; a positioning block is provided at the bottom of the upper die base; and the positioning block is slidably inserted in the positioning groove.

[0012] The beneficial effects of the utility model are as follows: the side demoulding rod cooperates with the parallel extension structure of the outer wall of the molded product, and the oblique demoulding rod cooperates with the oblique upward extension structure of the outer wall of the molded product. When demoulding, the oblique guide rod rises vertically and first contacts the hole wall of the small guide hole, thereby pushing the inner demoulding slider obliquely downward, so that the oblique demoulding rod moves obliquely downward to separate from the mold cavity and the product; the oblique guide rod rises and gradually contacts the hole wall of the large guide hole, and then pushes the outer demoulding slider outward, so that the side demoulding rod separates from the mold cavity and the product. The utility model sets a secondary demoulding method, and when the molds are opened and separated between the mold bases, the mold rods of the molds in different directions of the product can be automatically demoulded, which saves costs and is quick and convenient to demould. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is an overall schematic diagram of the mold disclosed in the embodiment of the utility model;

[0014] Figure 2 A schematic diagram of an upper mold core and a middle mold core disclosed in an embodiment of the utility model;

[0015] Figure 3 A schematic diagram of an outer demoulding slider and a positioning groove disclosed in an embodiment of the utility model;

[0016] Figure 4 It is a schematic diagram of the demoulding mechanism and the lower mold core disclosed in the embodiment of the utility model;

[0017] Figure 5 It is a schematic diagram of assembling the outer demoulding slider and the inner demoulding slider disclosed in the embodiment of the utility model;

[0018] Figure 6 It is a schematic diagram of the inner demoulding slider disclosed in the embodiment of the utility model.

[0019] Label description: 1-base, 2-lower mold base, 3-lower mold core, 4-middle mold base, 5-middle mold core, 6-upper mold base, 7-upper mold core, 8-injection port, 9-external demoulding slider, 10-inner demoulding slider, 11-oblique demoulding rod, 12-side demoulding rod, 13-oblique guide rod, 14-large guide hole, 15-small guide hole, 16-lower mold rod, 17-slide groove, 18-guide groove, 19-guide block, 21-limit block, 22-positioning groove, 23-positioning block. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. It should be noted that when an element is referred to as "fixed on" or "set on" another element, it can be directly on the other element or there may be a centering element at the same time. When an element is referred to as "connected to" another element, it can be directly connected to the other element or there may be a centering element at the same time. When an element is referred to as being "fixedly connected to" another element, it can be a common fixed connection method such as welding, bolting or gluing.

[0021] Please refer to Figure 1-6 In a preferred embodiment of the utility model, a secondary demoulding mold is disclosed, comprising a base 1, a lower mold, a middle mold, an upper mold and a demoulding mechanism; the lower mold comprises a lower mold base 2 and a lower mold core 3; the lower mold base 2 is arranged on the base 1; the lower mold core 3 is arranged on the lower mold base 2; the middle mold comprises a middle mold base 4 and a middle mold core 5; the middle mold base 4 is pressed on the lower mold base 2; the middle mold core 5 is arranged on the middle mold base 4, and the middle mold core 5 is arranged on the top of the lower mold core 3; the upper mold comprises an upper mold base 6, an upper mold core 7 and an injection port 8; the upper mold base 6 is pressed on the top of the middle mold base 4; the upper mold core 7 is covered on the top of the middle mold core 5; the lower mold core 3, the middle mold core 5 and the upper mold core 7 are surrounded to form a mold cavity; the injection port 8 is arranged on the top of the upper mold base 6, and the injection port 8 is communicated with the mold cavity; the demoulding mechanism The mold mechanism includes an outer demoulding slider 9, an inner demoulding slider 10, an oblique demoulding rod 11, a side demoulding rod 12 and an oblique guide rod 13; the outer demoulding slider 10 is slidably arranged on the middle mold core 5; a large guide hole 14 is arranged on the outer demoulding slider 9; the inner demoulding slider 10 is obliquely slidably arranged in the outer demoulding slider 9; a small guide hole 15 is arranged on the inner demoulding slider 10; the bottom of the oblique demoulding rod 11 is arranged at one end of the inner demoulding slider 10, and the top of the oblique demoulding rod 11 obliquely slides through the outer demoulding slider 9 and extends into the mold cavity; the side demoulding rod 12 is arranged in the outer demoulding slider 9, and one end of the side demoulding rod 12 extends into the mold cavity; the top of the oblique guide rod 13 is arranged in the upper mold core 7, and the bottom of the oblique guide rod 13 is movably passed through the large guide hole 14 and slidably inserted into the small guide hole 15.

[0022] Specifically, a lower mold rod 16 is further provided on the top of the lower mold base 2; the top of the lower mold rod 16 is connected to the mold cavity.

[0023] Specifically, a sliding groove 17 is obliquely opened at the bottom of the outer demoulding slider 10 ; the inner demoulding slider 9 is slidably disposed in the sliding groove 17 .

[0024] Specifically, a guide groove 18 is provided on the side wall of the slide groove 17 ; guide blocks 19 are provided on both sides of the inner demoulding slider 9 ; and the guide blocks 19 are slidably disposed in the guide groove 18 .

[0025] Specifically, a limiting groove is provided on one side of the outer demoulding slider 9; a mounting hole connected to the limiting groove is provided inside the outer demoulding slider 9; the side demoulding rod 12 is provided in the mounting hole; a limiting block 21 is provided at one end of the side demoulding rod 12; the limiting block 21 is installed in the limiting groove 20 by bolts.

[0026] Specifically, a positioning groove 22 is provided at the top of the middle die base 4 , and the positioning groove 22 is adjacent to the slide groove 17 ; a positioning block 23 is provided at the bottom of the upper die base 6 ; and the positioning block 23 is slidably inserted in the positioning groove 22 .

[0027] It can be seen from the above description that the utility model can realize automatic demoulding of molding mold rods in different angles and directions, saving costs and making demoulding quick and convenient.

[0028] The preferred embodiments of the present invention are described in detail above in conjunction with the drawings in the specification. It should be noted that the protection scope of the present invention includes but is not limited to the above embodiments. The specific structures disclosed in the drawings in the specification are only preferred embodiments of the present invention. Technical personnel in the field can also develop other embodiments on this basis. Any simple deformation or equivalent substitution that does not deviate from the innovative concept of the present invention is covered by the present invention and belongs to the protection scope of the present invention.

Claims

1. A secondary demoulding mold, characterized in that: include: Base; Lower mold; the lower mold includes a lower mold base and a lower mold core; the lower mold base is arranged on the base; the lower mold core is arranged on the lower mold base; Middle mold; The middle mold includes a middle mold base and a middle mold core; the middle mold base is pressed on the lower mold base; the middle mold core is arranged on the middle mold base, and the middle mold core is arranged on the top of the lower mold core; The upper mold comprises an upper mold base, an upper mold core and an injection port; the upper mold base is pressed on the top of the middle mold base; the upper mold core cover is arranged on the top of the middle mold core; the lower mold core, the middle mold core and the upper mold core are surrounded to form a mold cavity; the injection port is arranged on the top of the upper mold base, and the injection port is communicated with the mold cavity; Demolding mechanism; the demoulding mechanism includes an outer demoulding slider, an inner demoulding slider, an oblique demoulding rod, a side demoulding rod and an oblique guide rod; the outer demoulding slider is slidably arranged on the middle mold core; the outer demoulding slider is provided with a large guide hole; the inner demoulding slider is obliquely slidably arranged in the outer demoulding slider; the inner demoulding slider is provided with a small guide hole; the bottom of the oblique demoulding rod is arranged at one end of the inner demoulding slider, and the top of the oblique demoulding rod obliquely slides through the outer demoulding slider and extends into the mold cavity; the side demoulding rod is arranged in the outer demoulding slider, and one end of the side demoulding rod extends into the mold cavity; the top of the oblique guide rod is arranged in the upper mold core, and the bottom of the oblique guide rod is movably passed through the large guide hole and slidably inserted into the small guide hole.

2. A secondary demoulding mold according to claim 1, characterized in that: A lower die rod is also arranged on the top of the lower die seat; the top of the lower die rod is connected with the die cavity.

3. A secondary demoulding mold according to claim 1, characterized in that: A sliding groove is obliquely provided at the bottom of the outer demoulding slider; the inner demoulding slider is slidably arranged in the sliding groove.

4. A secondary demoulding mold according to claim 3, characterized in that: The side wall of the slide groove is provided with a guide groove; the two sides of the inner demoulding slide block are provided with guide blocks; the guide blocks are slidably arranged in the guide groove.

5. The secondary demoulding mold according to claim 1, characterized in that: A limiting groove is provided on one side of the outer demoulding slider; a mounting hole connected to the limiting groove is provided inside the outer demoulding slider; the side demoulding rod is provided in the mounting hole; a limiting block is provided at one end of the side demoulding rod; the limiting block is installed in the limiting groove by bolts.

6. The secondary demoulding mold according to claim 3, characterized in that: A positioning groove is arranged on the top of the middle die seat, and the positioning groove is arranged adjacent to the slide groove; a positioning block is arranged on the bottom of the upper die seat; and the positioning block is slidably inserted in the positioning groove.

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