Mold forming equipment for exhaust fan manufacturing

By introducing a method of spraying release agent in conjunction with a moving mold and an injection mold in the mold forming equipment for exhaust fan manufacturing, the problem of difficult demolding during injection molding is solved, and the rapid demolding of exhaust fan blades and the improvement of production efficiency are realized.

CN224044401UActive Publication Date: 2026-03-27FOSHAN YALUTAI VENTILATION EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-27
Publication Date
2026-03-27

AI Technical Summary

Technical Problem

During the injection molding process of plastic fan blades for exhaust fans, the blades may stick to the mold during injection, making demolding difficult and affecting production efficiency.

Method used

A mold forming device for manufacturing exhaust fans was designed. It adopts a moving mold and an injection mold to cooperate. A release agent is sprayed through a spray pipe during the injection process. A PLC control unit is used to control the closing and opening of the moving mold and the injection mold. The gear and rack structure ensures the stability of the moving mold and the uniform spraying of the release agent.

Benefits of technology

This enabled the exhaust fan blades to be demolded quickly and smoothly, improving production efficiency and reducing maintenance time.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model relates to the technical field of ventilation equipment manufacturing, in particular to mold forming equipment for exhaust fan manufacturing, which comprises a mold box, wherein an injection mold and a movable mold which are used for manufacturing and forming the fan blades of the exhaust fan are arranged in the mold box; and the driving piece is arranged between the injection mold and the movable mold, is arranged at the bottom of the mold box and comprises a second rack, and a spraying pipe used for spraying of the demolding machine is rotationally arranged at the end of the second rack. The movable mold is pushed by an electric control push rod, is controlled by a PLC (Programmable Logic Controller) control unit and is matched with the injection mold; and when the movable mold and the injection mold are pressed tightly, raw materials are injected into the injection port for molding. The movable mold moves to be closed with the injection mold, then injection molding is carried out, the spraying pipe can move from one side of the injection mold to the other side of the injection mold in the process that the movable mold moves towards the injection mold, the spraying pipe can spray a release agent to the inner walls of the movable mold and the injection mold in the whole process, and the release agent can be sprayed once before injection molding every time.
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Description

TECHNICAL FIELD

[0001] The utility model relates to ventilation equipment manufacturing technical field, specifically to a mould forming equipment for exhaust fan manufacturing. BACKGROUND

[0002] Exhaust fan, is driven by motor blade rotation drive airflow, make indoor and outdoor air exchange a kind of air conditioning electrical appliance, also called ventilation fan. Exhaust fan is to remove indoor dirty air, adjust temperature, humidity, and is widely used in family and public place. Exhaust fan, also known as negative pressure fan, negative pressure fan, etc. use air convection to keep indoor in negative pressure state, form a suction, continuously suck outdoor air, and discharge indoor hot air, thereby achieve ventilation, cooling effect.

[0003] Exhaust fan plastic fan blade is manufactured, is formed by injection molding, in the process of injection molding, liquid plastic is injected into the mold, and is cooled and formed, but in the process of rapid injection production, there may be injection process and mold sticking, leading to demolding difficulty, affect production efficiency. UTILITY MODEL CONTENT

[0004] In view of the problems in the prior art, the utility model provides a mould forming equipment for exhaust fan manufacturing.

[0005] The utility model solves the technical problems adopted technical scheme: a mould forming equipment for exhaust fan manufacturing, including mould box;

[0006] Wherein the mould box is provided with injection mould and movable mould for exhaust fan blade manufacturing;

[0007] Driving part;Driving part is arranged between injection mould and movable mould, and is arranged at the bottom of mould box, and driving part includes second rack, and the end of second rack is rotatably provided with spraying pipe for demolding machine spraying.

[0008] Preferably, movable mould is pushed by electric control push rod, and is controlled by PLC control unit, and movable mould is matched with injection mould;

[0009] When movable mould and injection mould are pressed tightly, raw materials are injected into injection port for forming.

[0010] Preferably, the bottom of movable mould is fixedly connected with first rack, the first rack is vertically arranged with the second rack, and the lower surface of the second rack is in contact with the upper surface of the second rack.

[0011] Preferably, double-layer gear is fixedly arranged at the bottom of mould box, and the double-layer gear includes upper gear and lower gear, and the diameter of upper gear is greater than the diameter of lower gear.

[0012] Preferably, the first rack is engaged with the lower gear, and the upper gear is engaged with the second rack.

[0013] Preferably, the mold box is fixedly provided with a track at the bottom.

[0014] The second rack is provided with a moving wheel at the lower surface of one end of the spraying pipe.

[0015] Preferably, the track is connected with a magnet at both ends, and the spraying pipe is fixedly connected with a magnetic rod at the lower end.

[0016] Preferably, the track is rotatably provided with a winding wheel at the end away from the first rack, the winding wheel is wound with a guide pipe at the outer wall, the guide pipe is connected with the spraying pipe at the bottom, and the mold box is provided with a liquid tank connected with the guide pipe at one end.

[0017] The utility model discloses the beneficial effects of:

[0018] (1) the utility model discloses a kind of mold forming equipment for exhaust fan manufacturing, and the present application can be closed with injection mold by moving mold, then injection molding is carried out, spraying pipe will move from one side of injection mold to the other side in the process of moving mold to injection mold, spraying pipe will spray release agent to the inner wall of moving mold and injection mold in the whole process, and spraying of release agent will be carried out once before each injection molding, guarantee the smoothness of release process. DRAWINGS

[0019] The utility model is further described below in connection with drawings and examples.

[0020] Figure 1 It is the whole structure schematic diagram of the utility model;

[0021] Figure 2 It is the three-dimensional structure schematic diagram of injection mold of the utility model;

[0022] Figure 3 It is the position drawing of slide track and second rack of the utility model;

[0023] Figure 4 It is the three-dimensional structure schematic diagram of double-layer gear of the utility model.

[0024] In the drawing: 100, mold box;110, guide rod;200, injection mold;210, moving mold;300, injection port;400, driving part;410, first rack;420, second rack;421, moving wheel;430, double-layer gear;431, upper gear;432, lower gear;440, spraying pipe;441, magnetic rod;450, liquid tank;460, track;461, winding wheel;462, guide pipe;470, magnet. DETAILED DESCRIPTION

[0025] In order to make the technical means, creation characteristics, achieve the purpose and function of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0026] As shown in Figures 1-4 The utility model discloses a mold forming equipment for manufacturing exhaust fan, including mold box 100;

[0027] Among them, injection mold 200 and mobile mold 210 for manufacturing exhaust fan blade are arranged in the mold box 100;

[0028] Driving part 400;Driving part 400 is arranged between injection mold 200 and mobile mold 210, and is arranged at the bottom of mold box 100, and driving part 400 includes second rack 420, and the end of second rack 420 is rotatably provided with spraying pipe 440 for spraying of stripper.

[0029] Through the movement of mobile mold 210, injection mold 200 can be closed, then injection molding is carried out, and in the process of moving mobile mold 210 to injection mold 200, spraying pipe 440 will move from one side of injection mold 200 to the other side, and spraying pipe 440 will spray release agent to the inner wall of mobile mold 210 and injection mold 200 in the whole process, and spraying of release agent will be carried out once before each injection, to ensure the smoothness in the demolding process.

[0030] Specifically, mobile mold 210 is pushed by electric control push rod, and is controlled by PLC control unit, and mobile mold 210 is arranged in cooperation with injection mold 200;

[0031] When mobile mold 210 and injection mold 200 are pressed tightly, raw materials are injected through injection port 300 to form.

[0032] Mobile mold 210 is controlled by PLC control unit, when mobile mold 210 and injection mold 200 are pressed tightly, the molten raw materials are injected through injection port 300, and PLC control unit can control mobile mold 210 and injection mold 200 to close and open mold, and the stability of mobile mold 210 in the movement process can be ensured by the arrangement of guide rod 110, to prevent mobile mold 210 from shaking.

[0033] Specifically, the bottom of mobile mold 210 is fixedly connected with first rack 410, first rack 410 is arranged perpendicularly to second rack 420, and the lower surface of second rack 420 is in contact with the upper surface of second rack 420;

[0034] Double-layer gear 430 is fixedly arranged at the bottom of mold box 100, and double-layer gear 430 includes upper layer gear 431 and lower layer gear 432, and the diameter of upper layer gear 431 is greater than that of lower layer gear 432;

[0035] The first rack 410 is engaged with the lower gear 432, and the upper gear 431 is engaged with the second rack 420.

[0036] When the moving mold 210 moves towards the injection mold 200, the first rack 410 on one side is moved synchronously, the first gear 410 is engaged with the lower gear 432, and the lower gear 432 drives the upper gear 431 to rotate when rotating, and in the process, the second rack 420 drives the spraying pipe 440 to move from one side of the injection mold 200 to the other side, and in the process, the spraying pipe 440 can spray the release agent to both sides, which is beneficial to the rapid demolding of the product.

[0037] Specifically, the mold box 100 is fixedly provided with a track 460 at the bottom.

[0038] The second rack 420 is provided with a moving wheel 421 on the lower surface of one end of the spraying pipe 440, and the moving wheel 421 is arranged in the track 460.

[0039] In the moving process of the second rack 420, the moving wheel 421 arranged at the end moves along the track 460, thereby ensuring the stability of the second rack 420 in the moving process.

[0040] Specifically, the track 460 is connected with a magnet 470 at both ends, and the spraying pipe 440 is fixedly connected with a magnetic rod 441 at the outer wall of the lower end.

[0041] The track 460 is rotatably provided with a winding wheel 461 at the end away from the first rack 410, the winding wheel 461 is wound with a guide pipe 462 at the outer wall, and the guide pipe 462 is connected with the spraying pipe 440 at the bottom. The mold box 100 is provided with a liquid tank 450 at the bottom, and the liquid tank 450 is connected with one end of the guide pipe 462.

[0042] The magnet 470 can attract the magnetic rod 441 to drive the spraying pipe 440 to rotate, the spraying pipe 440 is provided with a spray head in four directions, only two groups of spray heads on the spraying pipe 440 towards the moving mold 210 and the injection mold 200 are working, and the existing control module is used for control. Through the attraction of the magnet 470, the spray head used can be changed, and the spray head can be used.

[0043] When one group of spray heads is damaged, the spraying pipe 440 does not need to be replaced, only one group that can be used needs to be rotated to the direction of the moving mold 210 and the injection mold 200, and then the corresponding magnet 470 is removed, so that the spraying pipe 440 cannot be rotated.

[0044] The spraying pipe 440 is repaired and replaced after production, which saves the time for production and repair.

[0045] The liquid tank 450 stores the release agent, the release agent is pumped by a pump, and then is pumped into the spraying pipe 440 through the conduit 462, the cooperation between the liquid tank 450 and the pump is a relatively mature technology, the spraying pipe 440 is a hard pipe and cannot be flattened, so that the smooth conveying of the release agent is ensured, the winding wheel 461 can rotate to wind the conduit 462, the rotation of the winding wheel 461 is matched with the movement of the track 460, so that the winding and unwinding of the conduit 462 are ensured in time.

[0046] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A mold forming apparatus for manufacturing an exhaust fan, characterized by: Including mold box (100); Wherein the mold box (100) is provided with injection mold (200) and moving mold (210) for manufacturing fan blade of exhaust fan; Driving piece (400); the driving piece (400) is arranged between injection mold (200) and moving mold (210), and is placed in the bottom of mold box (100), and the driving piece (400) includes second rack (420), and the end of second rack (420) is rotatably provided with spraying pipe (440) for spraying of stripper machine.

2. The mold forming apparatus for manufacturing an exhaust fan according to claim 1, characterized by: The moving mold (210) is pushed by electric control push rod, and is controlled by PLC control unit, and the moving mold (210) is arranged in cooperation with injection mold (200); When the moving mold (210) is pressed with injection mold (200), the raw material is injected through injection port (300) to form.

3. The mold forming apparatus for manufacturing an exhaust fan according to claim 1, characterized in that: The bottom of the moving mold (210) is fixedly connected with first rack (410), the first rack (410) is arranged perpendicularly with second rack (420), and the lower surface of second rack (420) is in contact with the upper surface of second rack (420).

4. The mold forming apparatus for manufacturing an exhaust fan according to claim 3, characterized in that: The bottom of the mold box (100) is fixedly provided with double-layer gear (430), the double-layer gear (430) includes upper gear (431) and lower gear (432), and the diameter of upper gear (431) is greater than that of lower gear (432).

5. The mold forming apparatus for manufacturing an exhaust fan according to claim 4, characterized in that: The first rack (410) is engaged with the lower gear (432), and the upper gear (431) is engaged with the second rack (420).

6. The mold forming apparatus for manufacturing an exhaust fan according to claim 3, characterized in that: The bottom of the mold box (100) is fixedly provided with track (460); The lower surface of one end of the second rack (420) is provided with moving wheel (421) close to spraying pipe (440), and the moving wheel (421) is arranged in the track (460).

7. The mold forming apparatus for manufacturing an exhaust fan according to claim 6, characterized by: Both ends of the track (460) are connected with magnet (470), and the outer wall of the lower end of the spraying pipe (440) is fixedly connected with magnetic attraction rod (441).

8. The mold forming apparatus for manufacturing an exhaust fan according to claim 7, characterized by: The end of the track (460) away from the first rack (410) is rotatably provided with winding wheel (461), the outer wall of the winding wheel (461) is wound with conduit (462), and the bottom of the conduit (462) is connected with the spraying pipe (440).

9. The mold forming apparatus for manufacturing an exhaust fan according to claim 8, characterized in that: The bottom of the mold box (100) is provided with liquid tank (450), and one end of the liquid tank (450) is connected with conduit (462).