Correction tape shell injection molding equipment

Abstract

The utility model belongs to the technical field of injection molding equipment, and particularly relates to correction tape shell injection molding equipment which comprises a box body, a fixed mold and a movable mold, the fixed mold is fixedly installed in the box body, a hydraulic cylinder for controlling the movable mold is fixedly installed in the box body, and an air bag type air storage tank is fixedly installed on the right side of the movable mold. A transverse plate matched with the air bag type air storage tank is assembled on the right side of the movable mold in a sliding mode, a plurality of limiting rods matched with the transverse plate are fixedly arranged on the portion, close to the right side, of the movable mold, a plurality of springs matched with the limiting rods are fixedly arranged between the side wall of the transverse plate and the side wall of the movable mold, and a baffle matched with the transverse plate is fixedly arranged in the box body. Control assemblies matched with the transverse plates are arranged on the front side and the rear side in the box body correspondingly. The movable mold is driven by the hydraulic cylinder to move and be attached to the fixed mold to complete the injection molding process, and when the movable mold is separated from the fixed mold, the baffle enables the air bag type air storage tank to be compressed through the transverse plate, so that a product is blown out of the movable mold, discharging is facilitated, discharging is conducted through gas, and the completeness and quality of the product are guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of injection molding equipment, and particularly relates to an injection molding equipment for a correction tape shell. Background Art

[0002] As a core technology for efficiently and mass-producing plastic products, injection molding is widely used in the manufacturing of various housing parts such as consumer electronics, stationery, and daily necessities. As a common stationery item, the outer shell (housing) of a correction tape usually has a delicate structure, a relatively thin wall thickness, and high requirements for surface finish, dimensional accuracy, and assembly fit. It belongs to a typical precision injection molded part. In the traditional injection molding production of correction tape shells, the cooled and solidified shell is mainly ejected from the mold cavity by the mechanical ejector pin system built into the mold. For a correction tape shell with a fine structure, thin wall, and relatively brittle material, the rigid contact of the mechanical ejector pin is very likely to leave ejector marks, ejector white, or even cause fine cracks or deformation on the product surface, which easily affects the product qualification rate and aesthetics. Therefore, an injection molding equipment for a correction tape shell is needed to solve the above problems. Content of the Utility Model

[0003] The purpose of the utility model is to provide an injection molding equipment for a correction tape shell. When the moving mold is driven by a hydraulic cylinder to move and fit with the fixed mold to complete the injection molding process, when the moving mold and the fixed mold are separated, the baffle plate compresses the airbag type air storage tank through the cross plate, so as to blow the product out of the moving mold, thus facilitating blanking. Using gas for blanking ensures the integrity and quality of the product.

[0004] To achieve the above technical purpose, the technical scheme adopted by the utility model is as follows:

[0005] An injection molding equipment for a correction tape shell includes a box body, a fixed mold, and a moving mold. The fixed mold is fixedly installed inside the box body. A hydraulic cylinder is fixedly installed inside the box body, and the output end of the hydraulic cylinder is fixedly connected to the side wall of the moving mold. An airbag type air storage tank is fixedly installed on the right side of the moving mold. A number of linearly distributed ventilation holes are opened inside the moving mold. A round hole communicating with the airbag type air storage tank is opened on the right side of the moving mold. A number of circumferentially distributed elliptical cavities are opened inside the moving mold, and all the elliptical cavities communicate with the ventilation holes and the round hole. A cross plate matching with the airbag type air storage tank is slidably assembled on the right side of the moving mold. A number of limiting rods matching with the cross plate are fixedly arranged on the right side of the moving mold. A number of springs matching with the limiting rods are fixedly arranged between the side wall of the cross plate and the side wall of the moving mold. A baffle plate matching with the cross plate is fixedly arranged inside the box body. Control components matching with the cross plate are arranged on the front and rear sides inside the box body.

[0006] The control component includes a round rod fixedly arranged on the left side of the cross plate. An elliptical rod is rotatably assembled on the side wall of the moving mold. A limit clamping block is fixedly arranged on the lower side of the elliptical rod. A limit groove matching the limit clamping block is arranged on the upper side of the round rod. A reset block matching the elliptical rod is fixedly arranged on the side wall of the fixed mold.

[0007] A blanking component is arranged in the box body. The blanking component includes a blanking plate slidably assembled inside the box body. An L-shaped plate slidably assembled with the blanking plate is arranged inside the box body. An electric telescopic rod is fixedly arranged on the upper side of the L-shaped plate. The output end of the electric telescopic rod is fixedly connected to the lower side of the blanking plate. A connecting rod is fixedly arranged between the lower side of the moving mold and the L-shaped plate.

[0008] The upper side of the round rod is processed into a conical shape, and the lower side of the limit clamping block is processed into an inclined surface.

[0009] A plurality of sealing strips linearly distributed are fixedly arranged on the left side of the moving mold, and a plurality of sealing grooves matching the sealing strips are fixedly arranged on the right side of the fixed mold.

[0010] A blanking groove is arranged on the upper side of the blanking plate.

[0011] In the utility model, the hydraulic cylinder drives the moving mold to move and fit with the fixed mold to complete the injection molding process. When the moving mold is separated from the fixed mold, the baffle compresses the airbag type air storage tank through the cross plate, so as to blow the product out of the moving mold, thus facilitating blanking. Blanking is carried out by using gas to ensure the integrity and quality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model can be further illustrated by the non-limiting embodiments given in the drawings.

[0013] Figure 1 It is a schematic structural diagram of an embodiment of an injection molding device for a correction tape shell of the utility model;

[0014] Figure 2 It is a schematic cross-sectional structural diagram of an embodiment of an injection molding device for a correction tape shell of the utility model Figure 1 ;

[0015] Figure 3 It is Figure 2 an enlarged structural diagram of part A in

[0016] Figure 4 It is a schematic cross-sectional structural diagram of an embodiment of an injection molding device for a correction tape shell of the utility model Figure 2 ;

[0017] Figure 5 It is Figure 4 an enlarged structural diagram of part B in

[0018] Figure 6 This is a schematic cross-sectional structure diagram of the moving mold in an embodiment of an injection molding device for a correction tape housing according to the present utility model.

[0019] The main component symbols are explained as follows:

[0020] Box body 10, fixed mold 11, moving mold 12, hydraulic cylinder 13, airbag type gas storage tank 14, ventilation hole 15, round hole 16, elliptical cavity 17, cross plate 18, limit rod 19, spring 20, baffle 21, round rod 25, elliptical rod 26, limit block 27, limit groove 28, reset block 29, blanking plate 35, L-shaped plate 36, electric telescopic rod 37, connecting rod 38, sealing strip 40, sealing groove 41, blanking groove 45. Specific implementation manners

[0021] In order to enable those skilled in the art to better understand the present utility model, the technical solutions of the present utility model will be further described below in conjunction with the drawings and embodiments.

[0022] As Figure 1-6 shown, an injection molding device for a correction tape housing according to the present utility model includes a box body 10, a fixed mold 11 and a moving mold 12. The fixed mold 11 is fixedly installed inside the box body 10. A hydraulic cylinder 13 is fixedly installed inside the box body 10. The output end of the hydraulic cylinder 13 is fixedly connected to the side wall of the moving mold 12. An airbag type gas storage tank 14 is fixedly installed on the right side of the moving mold 12. A plurality of linearly distributed ventilation holes 15 are opened inside the moving mold 12. A round hole 16 communicating with the airbag type gas storage tank 14 is opened on the right side of the moving mold 12. A plurality of circumferentially distributed elliptical cavities 17 are opened inside the moving mold 12. The plurality of elliptical cavities 17 are all communicated with the ventilation holes 15 and the round hole 16. A cross plate 18 matching the airbag type gas storage tank 14 is slidably assembled on the right side of the moving mold 12. A plurality of limit rods 19 matching the cross plate 18 are fixedly arranged on the right side of the moving mold 12. A plurality of springs 20 matching the limit rods 19 are fixedly arranged between the side wall of the cross plate 18 and the side wall of the moving mold 12. A baffle 21 matching the cross plate 18 is fixedly arranged inside the box body 10. Control components matching the cross plate 18 are arranged on both the front and rear sides inside the box body 10;

[0023] The control component includes a round rod 25 fixedly arranged on the left side of the cross plate 18. An elliptical rod 26 is rotatably assembled on the side wall of the moving mold 12. A limit block 27 is fixedly arranged on the lower side of the elliptical rod 26. A limit groove 28 matching the limit block 27 is opened on the upper side of the round rod 25. A reset block 29 matching the elliptical rod 26 is fixedly arranged on the side wall of the fixed mold 11;

[0024] The utility model is in use, when demoulding, the output end of the hydraulic cylinder 13 drives the movable mold 12 to move, and the movable mold 12 synchronously drives the airbag gas storage tank 14 and the cross plate 18 to move. When it moves to a certain position, the cross plate 18 abuts against the baffle 21, pushing the cross plate 18 to approach the movable mold 12, and the spring 20 is synchronously compressed, and the airbag gas storage tank 14 is compressed. The airbag gas storage tank 14 blows the internal gas to the product in the movable mold 12 through the circular hole 16, the oval cavity 17 and the vent 15, thereby separating the product from the movable mold 12, thereby facilitating the unloading of the injection molded product. At the same time, the cross plate 18 drives the round rod 25 to move synchronously during the movement process, and the left side of the round rod 25 abuts against the limit block 27, thereby pushing The elliptical rod 26 rotates, and as the round rod 25 continues to move, the limiting block 27 is stuck in the limiting groove 28. At the same time, the output end of the hydraulic cylinder 13 stops contracting and starts to extend, synchronously driving the movable mold 12 and the compressed air bag type air storage tank 14 to move synchronously. When the movable mold 12 and the fixed mold 11 are close to each other, the reset block 29 abuts against the elliptical rod 26. The reset block 29 causes the elliptical rod 26 to rotate, and the elliptical rod 26 drives the limiting block 27 to rotate, so that the limiting block 27 is disengaged from the limiting groove 28. Under the elastic action of the spring 20 and the air bag type air storage tank 14, the cross plate 18 is pushed away from the movable mold 12. At the same time, the air between the movable mold 12 and the fixed mold 11 is sucked out through the circular hole 16, the elliptical cavity 17 and the vent 15 to ensure the quality of the product.

[0025] The utility model drives the movable mold to move by the hydraulic cylinder and fits with the fixed mold to complete the injection molding process. When the movable mold is separated from the fixed mold, the baffle compresses the airbag gas storage tank through the cross plate, thereby blowing the product out of the movable mold, making it easier to unload the material. The use of gas for unloading ensures the integrity and quality of the product.

[0026] A blanking member is provided in the box body 10, which includes a blanking plate 35 slidably mounted inside the box body 10, an L-shaped plate 36 matching the blanking plate 35 slidably mounted inside the box body 10, an electric telescopic rod 37 fixedly mounted on the upper side of the L-shaped plate 36, the output end of the electric telescopic rod 37 is fixedly connected to the lower side of the blanking plate 35, and a connecting rod 38 is fixedly mounted between the lower side of the movable mold 12 and the L-shaped plate 36;

[0027] In the present invention, when the metal is unloaded after injection molding, the movable mold 12 is moving, and the L-shaped plate 36 drives the electric telescopic rod 37 and the unloading plate 35 to move. After the movable mold 12 and the fixed mold 11 are separated by a moving distance, the output end of the electric telescopic rod 37 drives the unloading plate 35 to rise to receive the product and prevent damage to the product during the unloading process.

[0028] The upper side of the round rod 25 is processed into a cone, and the lower side of the limit block 27 is processed into an inclined surface; ensuring that the round rod 25 can smoothly pass through the limit block 27 to push the elliptical rod 26 to rotate, ensuring the smooth use of the device.

[0029] On the left side of the moving mold 12, a number of sealing strips 40 are fixedly arranged in a linear distribution, and on the right side of the fixed mold 11, a number of sealing grooves 41 matching the sealing strips 40 are fixedly arranged; during the injection molding process, the sealing performance between the moving mold 12 and the fixed mold 11 is improved to ensure that the airbag type gas storage tank 14 evacuates the internal gas.

[0030] On the upper side of the blanking plate 35, a blanking groove 45 is provided; it is convenient for the formed product to be blanked.

[0031] The above embodiments only exemplarily illustrate the principles and effects of the present invention, rather than limiting the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. An injection molding device for a correction tape housing, comprising a box body, a fixed mold and a movable mold, characterized in that: The stationary mold is fixedly installed inside the box body. A hydraulic cylinder is fixedly installed inside the box body. The output end of the hydraulic cylinder is fixedly connected to the side wall of the moving mold. A balloon-type gas storage tank is fixedly installed on the right side of the moving mold. A number of linearly distributed ventilation holes are formed inside the moving mold. A circular hole communicating with the balloon-type gas storage tank is formed on the right side of the moving mold. A number of elliptical cavities distributed in a circular pattern are formed inside the moving mold. All the elliptical cavities communicate with the ventilation holes and the circular hole. A cross plate matching the balloon-type gas storage tank is slidably assembled on the right side of the moving mold. A number of limiting rods matching the cross plate are fixedly arranged on the right side of the moving mold. A number of springs matching the limiting rods are fixedly arranged between the side wall of the cross plate and the side wall of the moving mold. A baffle matching the cross plate is fixedly arranged inside the box body. Control components matching the cross plate are arranged on both the front and rear sides inside the box body.

2. The injection molding device for the correction tape housing according to claim 1, characterized in that: The control component includes a round rod fixedly arranged on the left side of the cross plate. An elliptical rod is rotatably assembled on the side wall of the moving mold. A limiting block is fixedly arranged on the lower side of the elliptical rod. A limiting groove matching the limiting block is formed on the upper side of the round rod. A reset block matching the elliptical rod is fixedly arranged on the side wall of the stationary mold.

3. An injection molding device for a correction tape housing according to claim 1, characterized in that: A blanking component is arranged inside the box body. The blanking component includes a blanking plate slidably assembled inside the box body. An L-shaped plate slidably assembled with the blanking plate is arranged inside the box body. An electric telescopic rod is fixedly arranged on the upper side of the L-shaped plate. The output end of the electric telescopic rod is fixedly connected to the lower side of the blanking plate. A connecting rod is fixedly arranged between the lower side of the moving mold and the L-shaped plate.

4. An injection molding device for a correction tape housing according to claim 2, characterized in that: The upper side of the round rod is processed into a conical shape, and the lower side of the limiting block is processed into an inclined surface.

5. An injection molding device for a correction tape housing according to claim 1, characterized in that: A number of linearly distributed sealing strips are fixedly arranged on the left side of the moving mold. A number of sealing grooves matching the sealing strips are fixedly arranged on the right side of the stationary mold.

6. The injection molding device for a correction tape housing according to claim 3, wherein: A blanking groove is formed on the upper side of the blanking plate.

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