Injection mold

Abstract

The utility model provides an injection mold which comprises an upper mold and a lower mold, the upper mold can move up and down, an upper demolding assembly is arranged on the upper mold, a lower demolding assembly is arranged on the lower mold, when the injection mold is demolded, the upper mold moves upwards, a second lower mold moves upwards along with the upper mold under the action of a compression spring, the second lower mold pushes a formed workpiece, and the workpiece is demolded. And the upper mold moves to the upper side of the lower mold, the ejector rod moves downwards again, the workpiece in the forming groove is pushed out, demolding is completed, by means of the technical scheme, the lower demolding assembly and the upper demolding assembly sequentially conduct demolding operation on the formed workpiece, and demolding of the formed workpiece is completed.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to an injection mold. Background Art

[0002] After the product is injection molded, the workpiece needs to be demolded. During the demolding process, the workpiece will adhere to the mold, resulting in poor demolding.

[0003] In view of the above problems, a mold demoulding mechanism is disclosed in the patent with the patent authorization announcement number CN 219855832 U. During demoulding, the upper mold first moves upward to separate the upper mold from the workpiece, and then the pushing component on the lower mold pushes the workpiece upward, thus completing the demoulding of the workpiece.

[0004] The above-mentioned prior art is the same as the demoulding mechanism of most existing molds, in which a component for pushing the workpiece to be demoulded is only set on one of the molds, but not on the other mold. In this way, the other mold may stick to and involve the molded workpiece during demoulding and separation, causing the workpiece to be partially involved and moved, affecting the demoulding quality of the workpiece. Utility Model Content

[0005] In view of the problems pointed out in the background technology, the utility model proposes an injection mold, in which demoulding components are arranged on both molds to solve the above technical problems.

[0006] The technical solution of the utility model is achieved in this way:

[0007] An injection mold comprises an upper mold and a lower mold. The upper mold can move up and down, an upper demoulding component is arranged on the upper mold, and a lower demoulding component is arranged on the lower mold.

[0008] The utility model is further configured as follows: an upper mold core is provided in the middle of the lower side of the upper mold, a molding groove is provided on the lower side surface of the upper mold core, an upper mold seat is provided on the upper side of the upper mold, an installation cavity is formed between the upper mold seat and the upper mold, a groove is provided at the bottom of the molding groove, a connecting hole is provided at the bottom of the groove, and the connecting hole is arranged through the upper mold core and the upper side of the upper mold; the upper demolding assembly includes a push rod, a push block, and a push seat, a push rod is connected in the connecting hole, a push block is connected in the groove, the lower end of the push rod is fixedly connected to the push block, a push seat that can move up and down is provided in the installation cavity, and the upper end of the push rod is fixedly connected to the push seat.

[0009] The utility model is further configured that the push seat is provided with a guide rod extending downward, and also includes an upper guide hole penetrating the upper mold core and the upper mold, and the guide rod is connected to the upper guide hole.

[0010] The utility model is further configured as follows: the lower mold comprises a lower mold base, a lower mold one is provided on the lower mold base, a lower mold two is provided on the upper side of the lower film one, a lower mold core is provided in the center of the lower mold one and the lower mold two, the lower mold one is fixedly connected to the lower mold base, the lower end of the lower mold core is fixedly connected to the lower mold one, the lower mold two can move up and down, the lower demolding assembly comprises a compression spring, a compression spring is provided between the lower mold one and the lower mold two, and the lower mold one and the lower mold two are provided with lower guide holes corresponding to the upper guide holes.

[0011] The utility model is further configured such that the lower die base is provided with a connecting rod extending upward, the lower die 2 is provided with a through hole slidably connected to the connecting rod, the upper end of the connecting rod is threadedly connected to a limiting nut, and the limiting nut is located on the upper side of the lower die 2.

[0012] By adopting the above technical solution, the beneficial effects of the utility model are as follows:

[0013] The injection mold provided by the utility model, when demolding, the upper mold moves upward, and the lower mold moves upward with the upper mold under the action of the compression spring, and the lower mold pushes the molded workpiece to separate the workpiece from the lower mold core, and the upper mold moves to the upper side of the lower mold, and the push rod moves downward again to push the workpiece in the molding groove to complete the demolding. By adopting the technical solution of the present application, the lower demolding component and the upper demolding component perform demolding operations on the molded workpiece in turn to complete the demolding of the molded workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 It is a structural schematic diagram of the utility model.

[0016] Explanation of the numbers in the accompanying drawings: upper mold 1, upper mold core 2, molding groove 3, upper mold base 4, mounting cavity 5, groove 6, connecting hole 7, ejector rod 8, ejector block 9, push seat 10, guide rod 11, upper guide hole 12, lower mold base 13, lower mold one 14, lower mold two 15, lower mold core 16, compression spring 17, lower guide hole 18, connecting rod 19, through hole 20, limit nut 21. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] For reference Figure 1 The utility model is described as follows:

[0019] Embodiment 1: An injection mold comprises an upper mold 1 and a lower mold. The upper mold 1 can move up and down. The upper mold 1 is driven by a driving device to move up and down.

[0020] An upper demoulding component is provided on the upper mold 1, and a lower demoulding component is provided on the lower mold.

[0021] An upper mold core 2 is provided in the middle of the lower side of the upper mold 1 . The upper mold core 2 is arranged inside the upper mold 1 . The upper mold core 2 is fixedly connected to the upper mold 1 . An inwardly concave molding groove 3 is provided on the lower side surface of the upper mold core 2 .

[0022] An upper die base 4 is provided on the upper side of the upper die 1 . The upper die base 4 is fixedly connected to the upper die 1 , and a mounting cavity 5 is formed between the upper die base 4 and the upper die 1 .

[0023] A groove 6 is provided at the bottom of the molding groove 3 , and a connecting hole 7 is provided at the bottom of the groove 6 . The connecting hole 7 is provided through the upper mold core 2 and the upper side of the upper mold 1 .

[0024] The upper demoulding assembly includes a push rod 8, a push block 9, and a push seat 10. The push rod 8 is connected to the connecting hole 7, and the push block 9 is connected to the groove 6. The lower end of the push rod 8 is fixedly connected to the push block 9. A push seat 10 that can move up and down is provided in the mounting cavity 5. The upper end of the push rod 8 is fixedly connected to the push seat 10, and also includes a driving device for driving the push seat 10 to move up and down. The push seat 10 drives the push rod 8 to move up and down, and the push rod 8 drives the push block 9 to move up and down.

[0025] The push seat 10 is provided with a guide rod 11 extending downward, and also includes an upper guide hole 12 penetrating the upper mold core 2 and the upper mold 1. The guide rod 11 is connected to the upper guide hole 12, and the guide rod 11 plays a role in guiding the push seat 10 to move up and down.

[0026] The lower die includes a lower die base 13, a lower die one 14 is provided on the upper side of the lower die base 13, a lower die two 15 is provided on the upper side of the lower die one 14, a lower die core 16 is provided in the center of the lower die one 14 and the lower die two 15, the lower die one 14 is fixedly connected to the lower die base 13, the lower end of the lower die core 16 is fixedly connected to the lower die one 14, the lower die two 15 can move up and down, the lower die base 13 is provided with a connecting rod 19 extending upward, the connecting rod 19 is arranged on the left and right sides of the lower die one 14, the lower die two 15 is provided with a through hole 20 slidably connected to the connecting rod 19, the upper end of the connecting rod 19 is threadedly connected to a limiting nut 21, the limiting nut 21 is located on the upper side of the lower die two 15, the connecting rod 19 can guide the lower die two 15 to move up and down, the limiting nut 21 can limit the upward moving distance of the lower die two 15, and the upward moving distance of the lower die two 15 can be adjusted by adjusting the position of the limiting nut 21.

[0027] The lower demoulding assembly includes a compression spring 17, which is arranged between the lower mold 14 and the lower mold 2 15. The lower mold 14 is provided with a hole penetrating the upper and lower sides thereof, and the compression spring 17 is arranged in the hole. The lower end of the compression spring 17 abuts against the upper side of the lower mold base 13, and the lower side of the lower mold 2 15 is provided with a slot hole connected to the upper end of the compression spring 17. The compression spring 17 can exert an upward elastic force on the lower mold 2 15.

[0028] Lower mold 14 and lower mold 2 15 are provided with lower guide holes 18 corresponding to upper guide holes 12. When the upper mold moves downward to close the mold, the connecting rod 19 extends into the lower guide hole 18 and drives lower mold 2 15 to move downward until lower mold 2 15 is abutted and connected with lower mold 1 14.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An injection mold, comprising an upper mold (1) and a lower mold, wherein the upper mold (1) can move up and down, and is characterized in that: The upper mold (1) is provided with an upper demoulding component, and the lower mold is provided with a lower demoulding component; an upper mold core (2) is provided in the middle of the lower side of the upper mold (1), a molding groove (3) is provided on the lower side of the upper mold core (2), an upper mold seat (4) is provided on the upper side of the upper mold (1), and an installation cavity (5) is formed between the upper mold seat (4) and the upper mold (1), a groove (6) is provided at the bottom of the molding groove (3), a connecting hole (7) is provided at the bottom of the groove (6), and the connecting hole (7) is arranged through the upper mold core (2) and the upper mold (1); the upper demoulding component comprises a push rod (8), a push block (9), and a push seat (10), the push rod (8) is connected in the connecting hole (7), the push block (9) is connected in the groove (6), the lower end of the push rod (8) is fixedly connected to the push block (9), and the The installation cavity (5) is provided with a push seat (10) which can move up and down, and the upper end of the push rod (8) is fixedly connected to the push seat (10); the lower mold comprises a lower mold seat (13), a lower mold one (14) is provided on the lower mold seat (13), a lower mold two (15) is provided on the upper side of the lower mold one (14), a lower mold core (16) is provided at the center of the lower mold one (14) and the lower mold two (15), the lower mold one (14) is fixedly connected to the lower mold seat (13), the lower end of the lower mold core (16) is fixedly connected to the lower mold one (14), the lower mold two (15) can move up and down, and the lower demolding assembly comprises a compression spring (17), a compression spring (17) is provided between the lower mold one (14) and the lower mold two (15), and the lower mold one (14) and the lower mold two (15) are provided with lower guide holes (18) corresponding to the upper guide holes (12).

2. An injection mold according to claim 1, characterized in that: The push seat (10) is provided with a guide rod (11) extending downward, and also includes an upper guide hole (12) penetrating the upper mold core (2) and the upper mold (1), and the guide rod (11) is connected to the upper guide hole (12).

3. An injection mold according to claim 2, characterized in that: The lower die base (13) is provided with a connecting rod (19) extending upward, the lower die (15) is provided with a through hole (20) slidably connected to the connecting rod (19), the upper end of the connecting rod (19) is threadedly connected to a limiting nut (21), and the limiting nut (21) is located on the upper side of the lower die (15).

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