Injection mold for plastic rotor

By introducing feeding components and demolding components into the injection mold, and using motor to drive spiral blades to convey materials and gear meshing to control mold opening and closing, the problems of inconvenience in disassembly and assembly of existing molds and low production efficiency are solved, efficient material conveying and automatic demolding are achieved, and production efficiency and product qualification rate are improved.

CN223085345UActive Publication Date: 2025-07-11JIANGSU RAPHAEL MOLDING TECH CO LTD
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Patent Information

Application Number
CN202422052304.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-23
Publication Date
2025-07-11
Estimated Expiration
2034-08-23

AI Technical Summary

Technical Problem

The existing injection molds for plastic rotors are not convenient enough during disassembly and have low production efficiency, making it difficult to improve the actual function of the mold.

Method used

An injection mold including a feeding assembly, a heating injection molding assembly and a demolding assembly is designed. The spiral blades are driven by a motor to transport materials, and the motor drive gears and racks mesh to control the opening and closing of the mold to realize the continuous conveying of materials and automatic demolding.

Benefits of technology

It improves the conveying speed and production efficiency of injection molded materials, increases the opening and closing efficiency of molds, improves the product qualification rate, and has a simple structure, convenient operation and maintenance, reducing manufacturing costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of molds, in particular to an injection mold for a plastic rotor, which comprises a main body, and the side surface of the main body is fixedly connected with a feeding assembly, a heating injection molding assembly and a demolding assembly; the first motor is used for driving the spiral blade to convey injection molding materials, the core of the spiral blade lies in the rotating and pushing effects of the spiral blade, when the spiral blade rotates, friction force is generated between the surface of the spiral blade and the injection molding materials, and therefore the materials are pushed to move in the direction of the spiral shaft; the materials can be continuously and stably conveyed under the pushing action, the conveying speed and the conveying amount of the injection molding materials are increased, the injection molding efficiency is improved, and the spiral blade conveying device has the advantages of being simple in structure, convenient to operate and maintain, low in manufacturing cost, capable of being made to be totally closed, capable of preventing dust from flying, good in environmental sanitation and the like.
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Description

Technical Field

[0001] The utility model relates to the technical field of molds, and specifically relates to an injection mold for a plastic rotor. Background Art

[0002] The common manufacturing method of plastic rotors is injection molding in an injection mold on an injection molding machine.

[0003] The authorized announcement number CN218256375 discloses an injection mold for a plastic rotor. When this patented technology is used, first fix the base on the injection molding machine, then place the injection mold body on the base, rotate the two screws, so that the two screws drive the two sliders to approach the injection mold body, and the two sliders drive the two clamping members to approach the injection mold body to clamp and fix the injection mold body, completing the installation of the injection mold body. When disassembling the injection mold body, only need to rotate the screw to drive the slider away from the injection mold body to release the fixation of the injection mold body. At this time, the injection mold body can be disassembled from the injection molding machine. Through the above method, it is convenient to install and disassemble the injection mold body on the injection molding machine; however, in this scheme, many mechanisms are adopted to increase the convenience of mold disassembly and assembly, and it cannot improve the essential actual function of the mold. The mold is used for processing and production, and improving production efficiency and convenient demolding are the most fundamental. Therefore, an injection mold for a plastic rotor is needed to improve the above problems. Summary of the Utility Model

[0004] In order to improve production efficiency and convenient demolding, the purpose of the utility model is to provide an injection mold for a plastic rotor to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] An injection mold for a plastic rotor, including a main body, a feeding component, a heating and injection component, and a demolding component are fixedly connected to the side of the main body;

[0007] The main body includes a support frame;

[0008] The feeding component includes a vertical plate, a loading box is fixedly connected to the top of the vertical plate, a first motor is installed inside the loading box, a material bin is fixedly connected to the side of the loading box, a spiral blade is arranged inside the material bin, and the output end of the first motor is fixedly connected to the spiral blade;

[0009] The demoulding assembly includes a supporting bracket. A fixing block is fixedly connected to the top of the supporting frame. A second motor is installed on the top of the fixing block. The output end of the second motor is fixedly connected to a gear. A rack is meshed and connected to the top of the gear. A connecting rod is fixedly connected to the side of the rack. A slide rail is fixedly connected to the top of the supporting bracket. A slider is slidably connected inside the slide rail. The connecting rod is fixedly connected to the slider. A fixing seat is fixedly connected to the top of the slider. A female mold is fixedly connected to the top of the fixing seat.

[0010] As a preferred solution of the present utility model, a first bottom frame is fixedly connected to the top of the supporting frame. A first support is fixedly connected to the top of the first bottom frame. The first support is fixedly connected to the silo.

[0011] As a preferred solution of the present utility model, a discharge pipe is fixedly connected to the side of the silo. A feeding hopper is fixedly connected to the top of the silo.

[0012] As a preferred solution of the present utility model, two sets of the supporting bracket, slider and slide rail are provided.

[0013] As a preferred solution of the present utility model, the heating and injection molding assembly includes a second bottom frame. A second support is fixedly connected to the top of the second bottom frame.

[0014] As a preferred solution of the present utility model, a retention bin is fixedly connected to the top of the second support. A heater is fixedly connected to the side of the retention bin.

[0015] As a preferred solution of the present utility model, a connecting frame is fixedly connected to the side of the retention bin. A male mold is fixedly connected to the side of the connecting frame.

[0016] As a preferred solution of the present utility model, an injection molding pipe is arranged inside the male mold. The injection molding pipe extends into the retention bin.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0018] 1. In the present utility model, the first motor is used to drive the spiral blade to convey the injection molding material. The core of the spiral blade lies in the rotation and pushing action of the spiral blade. When the spiral blade rotates, friction is generated between its surface and the injection molding material, thereby pushing the material to move along the direction of the spiral axis. This pushing action enables the material to be continuously and stably conveyed, thereby increasing the conveying speed and conveying volume of the injection molding material, improving the injection molding efficiency. The spiral blade conveying has the advantages of simple structure, convenient operation and maintenance, low manufacturing cost, can be made into a fully enclosed structure to prevent dust flying, and good environmental hygiene.

[0019] 2. In the present utility model, by driving the gear to engage with the rack using the second motor, fixedly connecting the rack with the connecting rod, and fixedly connecting the connecting rod with the slider, the fixed seat on the top of the slider and the female mold on the fixed seat can be driven to slide on the slide rail, thereby controlling the opening and closing of the male mold and the female mold. This mechanical opening and closing method not only increases the efficiency of mold opening and closing, but also increases the product qualification rate by automatically opening and closing the mold. Description of the Drawings

[0020] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0021] Figure 2 is a schematic diagram of the feeding component structure of the present utility model;

[0022] Figure 3 is a schematic diagram of the heating and injection molding component structure of the present utility model;

[0023] Figure 4 is a schematic diagram of the demolding component structure of the present utility model.

[0024] In the figure: 1, main body; 101, support frame; 2, feeding component; 201, vertical plate; 202, loading box; 203, first motor; 204, storage bin; 205, spiral blade; 206, discharge pipe; 207, feeding hopper; 208, first support; 209, first chassis; 3, heating and injection molding component; 301, second chassis; 302, second support; 303, retention bin; 304, heater; 305, connecting frame; 306, male mold; 307, injection pipe; 4, demolding component; 401, supporting bracket; 402, fixed block; 403, second motor; 404, gear; 405, rack; 406, connecting rod; 407, slider; 408, fixed seat; 409, female mold; 410, slide rail. Detailed Embodiment

[0025] Next, in combination with the embodiments of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] Embodiment, please refer to Figures 1-4 , the present utility model provides a technical solution:

[0027] An injection mold for a plastic rotor, including a main body 1, and a feeding component 2, a heating and injection molding component 3, and a demolding component 4 are fixedly connected to the side of the main body 1.

[0028] In this embodiment, as shown inFigure 1 , Figure 2 and Figure 4 As shown in Figure 1 , Figure 2 and Figure 4 , the main body 1 includes a support frame 101. The feeding assembly 2 includes a vertical plate 201. A loading box 202 is fixedly connected to the top of the vertical plate 201. A first motor 203 is installed inside the loading box 202. A material bin 204 is fixedly connected to the side of the loading box 202. A spiral blade 205 is arranged inside the material bin 204. The output end of the first motor 203 is fixedly connected to the spiral blade 205. The demolding assembly 4 includes a support bracket 401. A fixed block 402 is fixedly connected to the top of the support frame 101. A second motor 403 is installed on the top of the fixed block 402. The output end of the second motor 403 is fixedly connected to a gear 404. A rack 405 is meshed with the top of the gear 404. A connecting rod 406 is fixedly connected to the side of the rack 405. A slide rail 410 is fixedly connected to the top of the support bracket 401. A slider 407 is slidably connected inside the slide rail 410. The connecting rod 406 is fixedly connected to the slider 407. A fixed seat 408 is fixedly connected to the top of the slider 407. A female mold 409 is fixedly connected to the top of the fixed seat 408. The first motor 203 is used to drive the spiral blade 205 to convey the injection molding material. The core of the spiral blade 205 lies in the rotation and pushing action of the spiral blade 205. When the spiral blade 205 rotates, friction is generated between its surface and the injection molding material, thereby pushing the material to move along the spiral axis direction. This pushing action enables the material to be conveyed continuously and stably, thereby increasing the conveying speed and conveying volume of the injection molding material and improving the injection molding efficiency. The spiral blade 205 conveying has the advantages of simple structure, convenient operation and maintenance, low manufacturing cost, can be made into a fully enclosed structure to prevent dust from flying, and good environmental sanitation, etc.

[0029] Among them, a first bottom frame 209 is fixedly connected to the top of the support frame 101. A first support 208 is fixedly connected to the top of the first bottom frame 209. The first support 208 is fixedly connected to the material bin 204. An outlet pipe 206 is fixedly connected to the side of the material bin 204. A feeding hopper 207 is fixedly connected to the top of the material bin 204. There are two support brackets 401, sliders 407 and slide rails 410. By using the second motor 403 to drive the gear 404 to mesh with the rack 405, the fixed connection between the rack 405 and the connecting rod 406, and the fixed connection between the connecting rod 406 and the slider 407, the fixed seat 408 at the top of the slider 407 and the female mold 409 on the fixed seat 408 can be driven to slide on the slide rail 410, thereby controlling the opening and closing of the male mold 306 and the female mold 409. This mechanical opening and closing method not only increases the efficiency of mold opening and closing, but also the automatic mold opening and closing can increase the product qualification rate.

[0030] In this embodiment, as shown in Figure 1 and Figure 3As shown, the heating and injection molding assembly 3 includes a second chassis 301. A second support 302 is fixedly connected to the top of the second chassis 301. A retention bin 303 is fixedly connected to the top of the second support 302. A heater 304 is fixedly connected to the side of the retention bin 303. An adapter bracket 305 is fixedly connected to the side of the retention bin 303. A male mold 306 is fixedly connected to the side of the adapter bracket 305. An injection pipe 307 is arranged inside the male mold 306, and the injection pipe 307 extends into the retention bin 303. The retention bin 303 can increase the storage space for injection molding materials and reduce storage costs.

[0031] The working process of the present utility model: When the injection molding mold for a plastic rotor designed by this solution is working, injection molding materials are poured from the feeding hopper 207 into the material bin 204. The first motor 203 is used to drive the spiral blade 205 to convey the injection molding materials. The core of the spiral blade 205 lies in the rotation and pushing action of the spiral blade 205. When the spiral blade 205 rotates, friction is generated between its surface and the injection molding materials, thereby pushing the materials to move along the direction of the spiral axis. The injection molding materials will be conveyed from the discharge pipe 206 into the heater 304 for heating. The heated injection molding materials will be discharged from the injection pipe 307 through the retention bin 303 and enter the cavity formed by the combination of the male mold 306 and the female mold 409. When demolding, the second motor 403 can be used to drive the gear 404 to engage with the rack 405. The rack 405 is fixedly connected to the connecting rod 406, and the connecting rod 406 is fixedly connected to the slider 407, so as to drive the fixed seat 408 on the top of the slider 407 and the female mold 409 on the fixed seat 408 to slide on the slide rail 410, and then the male mold 306 and the female mold 409 can be separated to complete demolding.

[0032] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An injection mold for a plastic rotor, comprising a main body (1), characterized in that: A feeding component (2), a heating and injection molding component (3), and a demolding component (4) are fixedly connected to the side surface of the main body (1). The main body (1) includes a support frame (101). The feeding component (2) includes a vertical plate (201). A loading box (202) is fixedly connected to the top of the vertical plate (201). A first motor (203) is installed inside the loading box (202). A material bin (204) is fixedly connected to the side surface of the loading box (202). A spiral blade (205) is arranged inside the material bin (204). The output end of the first motor (203) is fixedly connected to the spiral blade (205). The demolding component (4) includes a support bracket (401). A fixing block (402) is fixedly connected to the top of the support frame (101). A second motor (403) is installed on the top of the fixing block (402). The output end of the second motor (403) is fixedly connected to a gear (404). A rack (405) is meshed and connected to the top of the gear (404). A connecting rod (406) is fixedly connected to the side surface of the rack (405). A slide rail (410) is fixedly connected to the top of the support bracket (401). A slider (407) is slidably connected inside the slide rail (410). The connecting rod (406) is fixedly connected to the slider (407). A fixing seat (408) is fixedly connected to the top of the slider (407). A female mold (409) is fixedly connected to the top of the fixing seat (408).

2. The injection mold for a plastic rotor according to claim 1, characterized in that: A first bottom frame (209) is fixedly connected to the top of the support frame (101). A first support (208) is fixedly connected to the top of the first bottom frame (209). The first support (208) is fixedly connected to the material bin (204).

3. The injection mold for a plastic rotor according to claim 1, wherein: A discharge pipe (206) is fixedly connected to the side surface of the material bin (204). A feeding hopper (207) is fixedly connected to the top of the material bin (204).

4. The injection mold for a plastic rotor according to claim 1, characterized in that: There are two support brackets (401), sliders (407), and slide rails (410).

5. The injection mold for a plastic rotor according to claim 1, characterized in that: The heating and injection molding component (3) includes a second bottom frame (301). A second support (302) is fixedly connected to the top of the second bottom frame (301).

6. The injection mold for a plastic rotor according to claim 5, characterized in that: A retention bin (303) is fixedly connected to the top of the second support (302). A heater (304) is fixedly connected to the side surface of the retention bin (303).

7. An injection mold for a plastic rotor according to claim 6, characterized in that: An adapter frame (305) is fixedly connected to the side surface of the retention bin (303). A male mold (306) is fixedly connected to the side surface of the adapter frame (305).

8. The injection mold for a plastic rotor according to claim 7, characterized in that: An injection molding pipe (307) is arranged inside the male mold (306). The injection molding pipe (307) extends into the retention bin (303).