Injection molding part pressing and cutting jig

Abstract

The utility model belongs to the technical field of injection molding and press-cutting, particularly relates to a press-cutting jig for an injection molded part, and aims to solve the problem that the production efficiency is reduced due to the fact that the existing press-cut injection molded part is clamped in a press-cutting groove of a mold plate and is inconvenient to take out, the following scheme is provided: the press-cutting jig comprises a base and a movable mold plate, and a bottom plate is arranged at the bottom of the base; a fixed mold plate is fixed to the top of the base, a plurality of clamping grooves are formed in the top of the fixed mold plate at equal intervals, and pressing and cutting grooves are formed in the inner walls of the clamping grooves. According to the pressing and cutting device, through the arrangement of the positioning assembly, it is ensured that an injection molding part on the fixed mold plate is accurately pressed and cut through the movable mold plate, and the precision and quality of products are improved; the movable rod is pushed by air pressure to eject out the injection molding part clamped in the clamping groove, quick part taking is achieved, production efficiency is improved, the structure is compact, operation is easy and convenient, parts are easy to maintain and replace, and production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding and cutting, in particular to a cutting fixture for injection molded parts. Background Art

[0002] Injection molding is a commonly used method for processing plastics. It injects molten plastic materials into a mold. After the plastic cools and solidifies, the required parts or product blanks are formed in the mold. The blanks formed by injection molding need to be cut by a cutting fixture to remove excess materials or meet precise dimensional requirements.

[0003] When the existing cutting fixture cuts the blanks formed by injection molding, the injection molded parts after cutting often get stuck in the cutting grooves of the template, which is not convenient to take out, resulting in a reduction in production efficiency. Therefore, we propose a cutting fixture for injection molded parts to solve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the defect that the injection molded parts after cutting are stuck in the cutting grooves of the template and are not convenient to take out in the prior art, resulting in a reduction in production efficiency, and to propose a cutting fixture for injection molded parts.

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

[0006] A cutting fixture for injection molded parts includes a base and a moving template. A bottom plate is provided at the bottom of the base. A fixed template is fixed on the top of the base. A plurality of clamping grooves are equidistantly formed on the top of the fixed template. Cutting grooves are formed on the inner walls of the plurality of clamping grooves. A plurality of cutting knives corresponding to the cutting grooves are equidistantly arranged at the bottom of the moving template. A plurality of air holes corresponding to the clamping grooves are formed on the base. The fixture further includes:

[0007] A positioning component, which is arranged on the top of the base and is used for positioning the moving template when cutting the injection molded parts on the fixed template;

[0008] A plurality of part-taking components, which are correspondingly arranged in the air holes and are used for taking out the injection molded parts stuck in the clamping grooves after cutting;

[0009] A fixing component, which is arranged on the base and the bottom plate and is used for fixing between the base and the bottom plate.

[0010] In a possible design, the positioning component includes two positioning columns. Both of the two positioning columns are fixedly arranged on the top of the base. Two positioning grooves corresponding to the positioning columns are formed on both sides of the moving template. The positioning grooves are clamped with the corresponding positioning columns.

[0011] In a possible design, the picking component includes a moving rod which is slidably connected to the inner wall of the air hole. A leak-proof air cushion is provided at the bottom of the moving rod, and the top of the moving rod penetrates through the base and extends into the clamping groove.

[0012] In a possible design, an air passage is formed in the bottom plate, and a plurality of air holes are all communicated with the air passage. An air inlet communicated with the air passage is formed in one side of the bottom plate, and the air inlet is communicated with an external compressed air source.

[0013] In a possible design, the fixing component includes four first threaded holes which are equidistantly formed in the bottom plate. Four lengthened bolts are threadedly connected in the four first threaded holes respectively. Second threaded holes corresponding to the first threaded holes are formed in the base, and the four lengthened bolts are respectively threadedly connected with the corresponding second threaded holes.

[0014] In a possible design, a top plate is fixedly connected to the inside of the clamping groove at the top of the moving rod for ejecting the injection molded part stuck in the clamping groove.

[0015] In this application, before die cutting, the injection molded part is placed on the fixed template (3), and the positioning column (8) in the positioning component is engaged with the positioning groove on the moving template (4) to achieve precise positioning of the injection molded part by the moving template (4). The moving template (4) moves downward under the action of the driving device, so that the die cutting knife (7) contacts the injection molded part and performs die cutting. By using the cooperation of the die cutting groove (6) and the die cutting knife (7), the redundant part of the injection molded part is cut off.

[0016] After die cutting is completed, the injection molded part will be stuck in the clamping groove (5). At this time, compressed air is supplied to the air inlet (10) through an external compressed air source. The gas enters from the air inlet (10), passes through the air passage (9) and enters the air holes, pushing the moving rod (11) to move upward. A top plate (12) is provided at the top of the moving rod (11). The top plate (12) contacts the injection molded part and ejects it from the clamping groove (5) to achieve rapid picking.

[0017] The base (1) and the bottom plate (2) are fixed through the fixing component. Specifically, first threaded holes are formed in the bottom plate (2), corresponding second threaded holes are formed in the base (1), and then the two are threadedly connected by using lengthened bolts (13) to ensure a firm connection between the base (1) and the bottom plate (2).

[0018] Beneficial effects:

[0019] In the present utility model, for the die cutting jig for injection molded parts, by providing the positioning component, it is ensured that the moving template precisely die cuts the injection molded part on the fixed template, improving the precision and quality of the product;

[0020] In the present utility model, for the cutting and pressing fixture for injection molded parts, through the part picking component, the injection molded part stuck in the clamping groove is ejected by pneumatically pushing the moving rod, realizing rapid part picking and improving production efficiency.

[0021] In the present utility model, for the cutting and pressing fixture for injection molded parts, the structure of the present utility model is compact, the operation is simple, the maintenance and replacement of parts are easy, and the production cost is reduced.

[0022] In the present utility model, by setting the positioning component, it is ensured that the moving template precisely cuts and presses the injection molded part on the fixed template, improving the precision and quality of the product. The part picking component ejects the injection molded part stuck in the clamping groove by pneumatically pushing the moving rod, realizing rapid part picking and improving production efficiency. Its structure is compact, the operation is simple, the maintenance and replacement of parts are easy, and the production cost is reduced. Description of the Drawings

[0023] Figure 1 is a three-dimensional structure diagram of a cutting and pressing fixture for injection molded parts proposed by the present utility model;

[0024] Figure 2 is a bottom three-dimensional structure diagram of a cutting and pressing fixture for injection molded parts proposed by the present utility model;

[0025] Figure 3 is a three-dimensional structure diagram of the bottom plate of a cutting and pressing fixture for injection molded parts proposed by the present utility model;

[0026] Figure 4 is a partial cross-sectional three-dimensional structure diagram of a cutting and pressing fixture for injection molded parts proposed by the present utility model.

[0027] In the figure: 1, base; 2, bottom plate; 3, fixed template; 4, moving template; 5, clamping groove; 6, cutting and pressing groove; 7, cutting and pressing knife; 8, positioning column; 9, air duct; 10, air inlet; 11, moving rod; 12, top plate; 13, extension bolt. Detailed Embodiments

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0029] Embodiment 1

[0030] Refer to Figures 1-4, A die-cutting fixture, including a base 1, a bottom plate 2, a fixed template 3, a moving template 4 and multiple key components. The bottom of the base 1 is installed with the bottom plate 2 by a fixed method to ensure the stability of the entire fixture. The top of the base 1 is fixed with the fixed template 3. Multiple clamping grooves 5 are equally spaced on the top of the fixed template 3. The inner wall of each clamping groove 5 is designed with a die-cutting groove 6. The bottom of the moving template 4 is provided with multiple die-cutting knives 7 corresponding to the die-cutting grooves 6. The die-cutting operation of the injection molded part is realized by the up and down movement of the moving template 4.

[0031] To ensure the precise positioning of the moving template 4 during the die-cutting process, a positioning component is provided on the top of the base 1. Specifically, the positioning component includes two positioning posts 8, and these two positioning posts 8 are firmly fixed on the top of the base 1. Correspondingly, two positioning grooves matching the positioning posts 8 are opened on both sides of the moving template 4. During die-cutting, the positioning grooves of the moving template 4 are aligned with the positioning posts 8 on the base 1 and clamped, so as to realize the precise positioning of the moving template 4.

[0032] To efficiently take out the injection molded part stuck in the clamping groove 5 after die-cutting, multiple part-taking components are designed. Each part-taking component is mainly composed of a moving rod 11. The moving rod 11 is slidably connected to the inner wall of the air hole on the base 1 to ensure that it can move freely in the air hole. A leak-proof air cushion is installed at the bottom of the moving rod 11 to prevent gas leakage. The top of the moving rod 11 penetrates through the base 1 and extends into the clamping groove 5. A top plate 12 is also fixedly connected to the top, which is used to push the injection molded part out of the clamping groove 5 when the moving rod 11 rises.

[0033] Furthermore, an air passage 9 is opened on the bottom plate 2, and all the air holes are connected to the air passage 9 to form a complete air path system. An air inlet 10 is provided on one side of the bottom plate 2, and the air inlet 10 is connected to an external compressed air source. When it is necessary to take out the injection molded part, the external compressed air source supplies air to the air inlet 10, the gas enters each air hole through the air passage 9, pushes the moving rod 11 to rise, and then pushes the injection molded part out through the top plate 12.

[0034] This application can be used in the field of injection molding die-cutting technology, and can also be used in other fields applicable to this application.

[0035] Embodiment 2

[0036] Reference Figures 2-4, improved on the basis of Embodiment 1: An injection molding part pressing and cutting jig, which is applied to the technical field of injection molding pressing and cutting. In order to strengthen the connection strength between the base 1 and the bottom plate 2, a fixing component is adopted. Specifically, four first threaded holes are equally spaced on the bottom plate 2, and a lengthened bolt 13 is threadedly connected to each first threaded hole. At the same time, second threaded holes matching the first threaded holes are also opened at the corresponding positions of the base 1. During installation, the lengthened bolt 13 is passed through the first threaded hole of the bottom plate 2 and threadedly connected to the second threaded hole of the base 1, thereby firmly fixing the base 1 and the bottom plate 2 together.

[0037] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. A cutting jig for injection molded parts, comprising a base (1) and a movable plate (4), wherein a bottom plate (2) is arranged at the bottom of the base (1), a fixed plate (3) is fixed at the top of the base (1), a plurality of positioning grooves (5) are arranged at equal intervals at the top of the fixed plate (3), and the inner walls of the plurality of positioning grooves (5) are all provided with cutting grooves (6), a plurality of cutting knives (7) corresponding to the cutting grooves (6) are arranged at equal intervals at the bottom of the movable plate (4), a plurality of air holes corresponding to the positioning grooves (5) are arranged on the base (1), and the characteristics are as follows: The fixture also includes: A positioning component, which is arranged on the top of the base (1) and is used for positioning the movable mold plate (4) when pressing and cutting the injection molded part on the fixed mold plate (3); A plurality of retrieval components, which are correspondingly arranged in the air holes and are used to remove the injection molded parts stuck in the clamping groove (5) after pressing and cutting; A fixing component is arranged on the base (1) and the bottom plate (2) and is used for fixing the base (1) and the bottom plate (2).

2. The injection molding part cutting jig according to claim 1, characterized in that: The positioning assembly comprises two positioning columns (8), both of which are fixedly arranged on the top of the base (1), and two positioning grooves corresponding to the positioning columns (8) are opened on both sides of the movable template (4), and the positioning grooves are clamped with the corresponding positioning columns (8).

3. The injection molding part cutting jig according to claim 1, characterized in that: The pickup assembly comprises a moving rod (11), the moving rod (11) is slidably connected to the inner wall of the air hole, a leak-proof air cushion is provided at the bottom of the moving rod (11), and the top of the moving rod (11) passes through the base (1) and extends to the inside of the positioning groove (5).

4. The cutting jig for injection molded parts according to claim 3, characterized in that: An air passage (9) is provided on the bottom plate (2), and a plurality of air holes are connected to the air passage (9); an air inlet (10) connected to the air passage (9) is provided on one side of the bottom plate (2), and the air inlet (10) is connected to an external compressed air source.

5. The injection molding part cutting jig according to claim 4, characterized in that: The fixing assembly comprises four first threaded holes, which are arranged on the base plate (2) at equal intervals, and in which lengthened bolts (13) are threadedly connected, and second threaded holes corresponding to the first threaded holes are arranged on the base (1), and the four lengthened bolts (13) are respectively threadedly connected to the corresponding second threaded holes.

6. The injection molded part cutting jig according to claim 3, characterized in that: The top of the moving rod (11) is located inside the locking groove (5) and is fixedly connected to a top plate (12) for ejecting the injection molded part locked in the locking groove (5).

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