An injection molding machine and injection molding process for producing a switch housing for an automobile window lifter

Abstract

The present invention discloses an injection molding machine for producing a switch housing of an automobile window lifter and an injection molding process thereof, comprising a frame, a support plate installed on the frame, a support box arranged on the support plate, a switch housing lower mold arranged on the support box; a water storage tank installed on the frame, a delivery pump installed inside the water storage tank, a delivery assembly connected to the output end of the delivery pump, the delivery assembly comprising a first pipe connected to the output end of the delivery pump, a second pipe connected to the end of the first pipe, a limiting pipe installed inside the switch housing lower mold, and the limiting pipe connected to the second pipe. The injection molding machine for producing a switch housing of an automobile window lifter and an injection molding process thereof, guide water from the inside of the limiting pipe into the inside of the switch housing lower mold through the delivery assembly, facilitates the demoulding operation of the housing and the side end of the switch housing lower mold, and reduces the problem of inconvenience of demoulding caused by plastic residue on the side wall of the switch housing lower mold.

Description

Technical Field

[0001] The invention relates to the technical field related to the production of an automobile window lifter switch shell, and in particular to an injection molding machine and an injection molding process for producing an automobile window lifter switch shell. Background Art

[0002] In the production process of automobile window lift switch shell, an injection molding machine is required for production. The injection molding machine uses the automobile window lift switch shell molding mold to make the automobile window lift switch shell. However, the existing automobile window lift switch shell production injection molding machine still has certain defects when used, such as;

[0003] During use, the injection molding machine needs to demould after the model is made. In most cases, the demoulding of the injection molding machine is done manually by the staff. Since the model is not easy to be demoulded, the model is easily damaged, resulting in unsatisfactory demoulding effect and affecting work efficiency.

[0004] In order to overcome the above defects, prior art 1 (Chinese patent with application number 202122318045.1 and application date 2021-09-24) is a molding mold for an injection molding machine, in which an upper mold and a lower mold are fixed in relative positions. When the required product is injection molded, the injection molding machine injects the lower mold from the injection tube, and then connects the water inlet pipe and the water outlet pipe to cool the product in the molding tank, so that it can be quickly molded. Then, after molding, the cylinder is started, and the telescopic end of the cylinder drives the movement of the moving plate fixedly connected to the end face, thereby driving the ejector pin to move in the ejector hole, and then the finished product is ejected, so that it is convenient to take the finished product;

[0005] There is also prior art 2 (Chinese patent with application number 202123298644.8 and application date 2021-12-25), a top mold device for an injection molding machine, wherein the mounting plate is installed with the baffle plate 1 by connecting the clamp block, and then the movable top plate is installed at the inner end of the mounting plate and the baffle plate 1, at this time, the motor is started, the motor drives the gear to rotate to rotate the driven wheel, and the driven wheel causes the front end threaded rod to move forward, and the threaded rod drives the moving block to move inward at the outer end of the threaded rod, so that the connecting shaft at the upper end drives the push rod and the roller block to push the upper end at the outer end of the limit block, so that the push block moves upward, thereby realizing the ejection of the movable top plate and the upper end of the model, and the push block is installed under the movable top plate, and when the movable top plate is ejected, the fixing piece at the outer end of the movable top plate can slide in the movable groove, so that the movable top plate drives the upper end of the model to move, and the model can be taken out at this time, making the model moving and dislodging more convenient;

[0006] And prior art 3 (Chinese patent with application number 202220235638.3 and application date 2022-01-28) An injection molding mechanism for an injection molding machine, the ejection assembly includes a support rod fixedly mounted on a frame, a movable frame arranged at the top of the support rod, and a positioning plate installed on the side of the movable frame and slidably connected to the lower mold. After the injection molding is completed, when the driving member one and the driving member two drive the lower mold to move downward, the support rod pushes the movable frame and the positioning plate to move toward both sides along the lower mold, and the spring will be elastically deformed under the force, and the support rod will push the finished product outward.

[0007] Although the existing technology can perform automatic demoulding, during the working process, the injection molding machine pushes the parts out for demoulding by lifting the push plate at the bottom. Since the push plate is set at the bottom of the mold, the thrust of the push plate is concentrated on the bottom of the mold, which may cause plastic to remain on the side wall of the mold, and the push plate cannot effectively remove the residue, which reduces the qualified rate of the finished product and increases the difficulty of cleaning and maintenance. In addition, the thrust of the push plate is uneven, which makes the overall demoulding inconvenient, easily causes deformation of the finished product, and reduces production efficiency.

[0008] In view of the above problems, it is urgent to carry out innovative design based on the original automobile window lifter switch shell production injection molding machine and its injection molding process. Therefore, we proposed that the automobile window lifter switch shell production injection molding machine and its injection molding process can well solve the above problems. Summary of the invention

[0009] The purpose of the present invention is to provide an injection molding machine and an injection molding process for producing automobile window lifter switch housings, so as to solve the problem proposed in the above background technology that the injection molding machines currently on the market push out the components for demolding by lifting the push plate at the bottom. Since the push plate is arranged at the bottom of the mold, the thrust of the push plate is concentrated at the bottom of the mold, which may cause plastic to remain on the side wall of the mold, and the push plate cannot effectively remove the residue, which reduces the qualified rate of the finished product and increases the difficulty of cleaning and maintenance. In addition, the thrust of the push plate is uneven, which makes the overall demolding inconvenient, easily causes deformation of the finished product, and reduces production efficiency.

[0010] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an injection molding machine for producing a switch housing of an automobile window lifter and an injection molding process thereof, comprising a frame, a hydraulic rod is installed on the frame, a switch housing upper mold is arranged under the hydraulic rod, a support plate is installed on the frame, a support box is arranged on the support plate, a switch housing lower mold is arranged on the support box, and a storage box is arranged on the frame;

[0011] A water tank is installed on the frame, a delivery pump is installed inside the water tank, a delivery assembly is connected to the output end of the delivery pump, the delivery assembly includes a first pipe connected to the output end of the delivery pump, the end of the first pipe is connected to the second pipe, the second pipe is installed inside the delivery box, the delivery box is arranged inside the support box, a limiting pipe is installed inside the lower mold of the switch housing, the limiting pipe is connected to the second pipe, a pin is arranged inside the limiting pipe, a lifting plate is arranged at the bottom of the lifting plate, the bottom of the lifting plate is connected to the inside of the delivery box through a lifting cylinder, and the water source is delivered to the inside of the lower mold of the switch housing through the delivery assembly.

[0012] Preferably, a motor box is installed under the support plate, a dual-axis motor is arranged inside the motor box, a rotating shaft is connected to the first output end of the dual-axis motor, the rotating shaft penetrates and is connected to the inside of the water tank, and blades are installed on the outside of the rotating shaft.

[0013] Preferably, the second output end of the dual-axis motor is connected to an ejection assembly, and the ejection assembly includes a screw rod installed at the second output end of the dual-axis motor, and the screw rod is connected through the interior of the support box.

[0014] Preferably, a movable plate is threadedly connected to the outer side of the screw rod, a guide rod is penetrated and connected to the inside of the movable plate, a support rod is arranged on the movable plate, and a top block is installed on the upper end of the support rod.

[0015] Preferably, the ejector block is installed inside an ejector box, a through slot is provided on the ejector block, and the ejector box is arranged at the bottom of the lower mold of the switch housing.

[0016] Preferably, an auxiliary component is installed inside the support box, and the auxiliary component includes a gas delivery component installed inside the support box. The output end of the gas delivery component is connected to a sleeve through a delivery pipe. The sleeve is installed on the outside of the support rod. The support rod is a hollow structure and a through hole is opened on the support rod.

[0017] Preferably, the outer side of the rotating shaft is connected to a rotating rod through a driving member, and a pushing assembly is installed on the outer side of the rotating rod. The pushing assembly includes a gear fixed on the outer side of the rotating rod, and the gear is installed inside the storage box. The storage box is arranged on one side of the frame.

[0018] Preferably, a limiting groove is provided at the side end of the storage box, a rack is installed inside the limiting groove, the rack is meshed with the gear, a push plate is provided at the end of the rack, a tilting block is installed at the side end of the lower mold of the switch housing, a storage box is provided at the bottom of the tilting block, and the storage box is provided on the other side of the frame.

[0019] Another technical solution provided by the present invention is to provide an injection molding process of an injection molding machine for producing an automobile window lifter switch housing, comprising the following steps:

[0020] S1: Mold installation: Make the switch housing upper mold and the switch housing lower mold according to the design drawing of the switch housing and install them;

[0021] S2: Injection molding preparation: select suitable plastic raw materials for import, and adjust the temperature, pressure and injection speed of the injection molding machine;

[0022] S3: Injection molding process: the plastic raw material is heated to a molten state, and then injected into the switch housing upper mold and the switch housing lower mold, and the plastic is waited for to cool in the mold;

[0023] S4: Demolding and storage: After the plastic forms a solid in the mold, the switch housing is ejected by the ejection component, and the switch housing is moved into the storage box for storage by the pushing component.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows: the automobile window lifter switch housing production injection molding machine and the injection molding process thereof, through the conveying component, introduces the water source from the inside of the limit pipe into the inside of the switch housing lower mold, facilitates the demoulding operation of the housing and the side end of the switch housing lower mold, and reduces the problem of plastic residue on the side wall of the switch housing lower mold causing demoulding inconvenience, and the specific contents are as follows:

[0025] The water source is delivered to the inside of the lower mold of the switch housing through the delivery component, which facilitates the demoulding operation of the housing and the side end of the lower mold of the switch housing. The whole is demoulded by the water source, which solves the problem of uneven demoulding caused by demoulding using the bottom push plate;

[0026] The first output end of the dual-axis motor drives the rotating shaft to rotate, so that the rotating shaft drives the blades to rotate. The water source inside the lower mold of the switch housing flows back to the water storage tank through the pipeline, so that the water source inside the water storage tank is mixed, reducing the waste of resources.

[0027] The ejector assembly rises through the cooperation of the guide rod, so that the moving plate drives the support rod to move, which facilitates the ejector block on the top of the support rod to be ejected from the inside of the ejector box, making it easy to move the loose switch housing upward, reducing the inconvenience caused by manual removal;

[0028] When the moving plate drives the support rod to move upward, the support rod moves into the sleeve. At this time, the gas inside the auxiliary component is transported through the through grooves on the support rod and sprayed out through the through holes on the top block, which makes it convenient to dry the water stains remaining on the side wall of the lower mold of the switch housing, thereby improving the overall operating efficiency.

[0029] The gear of the pushing component moves the rack at the side end, and the rack moves inside the limiting groove, so that the pushing plate at the end of the rack pushes the ejected switch shell, making it convenient for the switch shell to fall into the storage box, reducing the problem of increased costs caused by manual collection. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0031] Figure 2 It is a schematic diagram of the overall front view structure of the present invention;

[0032] Figure 3 This is a schematic diagram of the structure after the hydraulic rod of the present invention is driven;

[0033] Figure 4 This is a schematic diagram of the internal structure of the conveying box of the present invention;

[0034] Figure 5 This is a schematic diagram of the internal structure of the water storage tank of the present invention;

[0035] Figure 6 This is a schematic diagram of the internal structure of the support box of the present invention;

[0036] Figure 7 This is a schematic diagram of the structure after the movable plate of the present invention moves;

[0037] Figure 8 It is a schematic diagram of the connection structure between the support rod and the top block of the present invention;

[0038] Fig. 9 This is a schematic diagram of the connection structure between the tilting block and the storage box of the present invention;

[0039] Fig.10 It is a schematic diagram of the connection structure between the gear and the rack of the present invention.

[0040] In the figure: 1, frame; 2, hydraulic rod; 3, switch housing upper mold; 4, support plate; 5, support box; 6, switch housing lower mold; 7, water tank; 8, delivery pump; 9, first pipeline; 10, second pipeline; 11, ejector pin; 12, limit pipeline; 13, lifting plate; 14, lifting cylinder; 15, delivery box; 16, motor box; 17, double-axis motor; 18, rotating shaft; 19, blade; 20, screw; 21, moving plate; 22, guide rod; 23, support rod; 24, ejector block; 25, ejector box; 26, air delivery part; 27, delivery pipeline; 28, sleeve; 29, through hole; 30, through groove; 31, driving part; 32, rotating rod; 33, gear; 34, storage box; 35, limit groove; 36, rack; 37, push plate; 38, tilting block; 39, storage box. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0042] In this embodiment, in order to improve the quality of the overall demoulding, the conveying assembly is used to reduce the problem of uneven demoulding caused by using the bottom push plate for demoulding, such as Figure 1-Figure 5 The technical solution shown in the figure comprises a frame 1, a hydraulic rod 2 is mounted on the frame 1, a switch housing upper mold 3 is mounted under the hydraulic rod 2, a support plate 4 is mounted on the frame 1, a support box 5 is mounted on the support plate 4, a switch housing lower mold 6 is mounted on the support box 5, a storage box 39 is mounted on the frame 1, a water storage tank 7 is mounted on the frame 1, a delivery pump 8 is mounted inside the water storage tank 7, a delivery assembly is connected to the output end of the delivery pump 8, and the delivery assembly comprises a first pipe 9 connected to the output end of the delivery pump 8, a second pipe 10 is connected to the end of the first pipe 9, and the second pipe 10 is connected to the end of the second pipe 10. The channel 10 is installed in the conveying box 15, the conveying box 15 is arranged in the support box 5, the limit pipe 12 is installed in the lower mold 6 of the switch housing, the limit pipe 12 is connected to the second pipe 10, the limit pipe 12 is provided with an ejector pin 11, the bottom of the ejector pin 11 is provided with a lifting plate 13, the bottom of the lifting plate 13 is connected to the inside of the conveying box 15 through the lifting cylinder 14, the water source is conveyed to the inside of the lower mold 6 of the switch housing through the conveying assembly, the hydraulic rod 2 on the frame 1 is used to move the upper mold 3 of the switch housing, and the support box 5 on the support plate 4 is convenient for the limit pipe 1 2 is supported inside, so that the switch housing upper mold 3 and the switch housing lower mold 6 are clamped, which facilitates the internal molten plastic to be cooled in the middle of the switch housing upper mold 3 and the switch housing lower mold 6, so that the internal switch housing is formed. At this time, the delivery pump 8 inside the water storage tank 7 is turned on, and the water source is delivered through the first pipeline 9, and the water source is delivered to the inside of the limiting pipeline 12 through the second pipeline 10 inside the delivery box 15, so that the ejector pin 11 inside the limiting pipeline 12 is convenient to push the housing, which reduces the ejector pin 11 stuck inside the limiting pipeline 12 and causes the later To solve the problem of inconvenience in removal, the lifting plate 13 is lifted and lowered by the lifting cylinder 14, so that the ejector pin 11 loosens the bottom of the switch housing. At this time, water is introduced from the inside of the limit pipe 12 into the inside of the switch housing lower mold 6, which facilitates the demoulding operation of the housing and the side end of the switch housing lower mold 6, reducing the problem of inconvenience in demoulding caused by plastic residue on the side wall of the switch housing lower mold 6, and demoulding the whole by water, reducing the problem of uneven demoulding caused by demoulding using the bottom push plate, thereby improving the overall quality of the finished product, thereby greatly improving the overall production efficiency. Example

[0043] In this embodiment, in order to improve the overall demoulding efficiency, the ejection assembly is used to reduce the problem of reduced demoulding efficiency caused by manual removal. Figure 5-Figure 8 As shown, a motor box 16 is installed under the support plate 4, a double-axis motor 17 is arranged inside the motor box 16, a rotating shaft 18 is connected to the first output end of the double-axis motor 17, the rotating shaft 18 is connected through the inside of the water storage tank 7, a blade 19 is installed on the outside of the rotating shaft 18, and an ejection assembly is connected to the second output end of the double-axis motor 17, the ejection assembly includes a screw 20 installed at the second output end of the double-axis motor 17, the screw 20 is connected through the inside of the support box 5, a movable plate 21 is threadedly connected to the outside of the screw 20, a guide rod 22 is connected through the inside of the movable plate 21, a support rod 23 is arranged on the movable plate 21, a top block 24 is installed on the upper end of the support rod 23, the top block 24 is installed in the inside of the ejection box 25, a through slot 30 is opened on the top block 24, the ejection box 25 is arranged at the bottom of the lower mold 6 of the switch housing, and the inside of the motor box 16 is opened. The double-axis motor 17 drives the rotating shaft 18 to rotate through the first output end of the double-axis motor 17, so that the rotating shaft 18 drives the blade 19 to rotate, thereby mixing the water source inside the water tank 7, cooling the water source, and transporting the cooled water source for demolding operation, thereby improving the overall practicality. At this time, the water source inside the lower mold 6 of the switch housing flows back to the inside of the water tank 7 through the pipeline, reducing the waste of resources. The screw 20 is driven to rotate by the second output end of the double-axis motor 17, so that the movable plate 21 outside the screw 20 is convenient to rise through the cooperation of the guide rod 22, and the movable plate 21 drives the support rod 23 to move, so that the top block 24 on the top of the support rod 23 is ejected from the inside of the ejection box 25, so as to facilitate the upward movement of the loose switch housing and reduce the inconvenience caused by manual removal. Example

[0044] In this embodiment, in order to improve the overall production efficiency, the auxiliary components are used to reduce the problem of reduced production efficiency caused by residual water stains on the side wall of the lower mold 6 of the switch housing. Figure 1 , Fig. 9 and Fig.10As shown, an auxiliary component is installed inside the support box 5, and the auxiliary component includes a gas delivery member 26 installed inside the support box 5. The output end of the gas delivery member 26 is connected to a sleeve 28 through a delivery pipe 27. The sleeve 28 is installed on the outside of the support rod 23. The support rod 23 is a hollow structure. A through hole 29 is opened on the support rod 23. The outside of the rotating shaft 18 is connected to a rotating rod 32 through a driving member 31. A pushing component is installed on the outside of the rotating rod 32. The pushing component includes a gear 33 fixed on the outside of the rotating rod 32. The gear 33 is installed in the storage box 34. The storage box 34 is set in the machine On one side of the frame 1, a limiting groove 35 is provided at the side end of the storage box 34, a rack 36 is installed inside the limiting groove 35, the rack 36 is meshed and connected with the gear 33, a push plate 37 is provided at the end of the rack 36, a tilting block 38 is installed at the side end of the switch housing lower mold 6, a storage box 39 is provided at the bottom of the tilting block 38, and the storage box 39 is provided on the other side of the frame 1. The gas delivery part 26 is opened, and the gas is delivered to the inside of the sleeve 28 through the delivery pipe 27. When the moving plate 21 drives the support rod 23 to move upward, the support rod 23 moves into the inside of the sleeve 28, and the inner wall of the sleeve 28 is provided with The sealing ring is convenient for sealing the gas and for the support rod 23 to move inside the sleeve 28. At this time, the gas is transported through the through groove 30 opened on the support rod 23, and the compressed gas is moved through the support rod 23 to the inside of the top block 24, and is ejected through the through groove 30 on the top block 24. The through hole 29 is opened at the side end and the bottom of the top block 24, which is convenient for drying the water stains remaining on the side wall of the lower mold 6 of the switch housing, thereby improving the overall operating efficiency and reducing the problem of reduced production efficiency caused by residual water stains on the side wall of the lower mold 6 of the switch housing. When rotating, the driving member 31 on the outside of the rotating shaft 18 drives the rotating rod 32 to rotate. The driving member 31 is a conveyor belt structure in the prior art, which is convenient for transmission, so that the gear 33 on the outside of the rotating rod 32 rotates inside the storage box 34, which is convenient for the gear 33 to move the rack 36 at the side end. The rack 36 moves inside the limiting groove 35, so that the pushing plate 37 at the end of the rack 36 pushes the ejected switch housing, and the switch housing falls into the storage box 39 through the tilting block 38, reducing the problem of increased costs caused by the need for manual collection.

[0045] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. 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 molding machine for producing a switch housing of an automobile window lifter, comprising a frame (1), a hydraulic rod (2) mounted on the frame (1), a switch housing upper mold (3) mounted below the hydraulic rod (2), a support plate (4) mounted on the frame (1), a support box (5) mounted on the support plate (4), a switch housing lower mold (6) mounted on the support box (5), and a storage box (39) mounted on the frame (1); It is characterized in that Also includes: The frame (1) is provided with a water tank (7), a delivery pump (8) is installed inside the water tank (7), an output end of the delivery pump (8) is connected to a delivery assembly, the delivery assembly comprises a first pipe (9) connected to the output end of the delivery pump (8), an end of the first pipe (9) is connected to a second pipe (10), the second pipe (10) is installed inside a delivery box (15), the delivery box (15) is arranged inside a support box (5), a limiting pipe (12) is installed inside the switch housing lower mold (6), the limiting pipe (12) is connected to the second pipe (10), an ejector pin (11) is arranged inside the limiting pipe (12), a lifting plate (13) is arranged at the bottom of the ejector pin (11), the bottom of the lifting plate (13) is connected to the inside of the delivery box (15) via a lifting cylinder (14), and water is delivered to the inside of the switch housing lower mold (6) through the delivery assembly; A motor box (16) is installed under the support plate (4), a double-shaft motor (17) is arranged inside the motor box (16), a rotating shaft (18) is connected to a first output end of the double-shaft motor (17), the rotating shaft (18) penetrates and is connected to the inside of the water storage tank (7), and a blade (19) is installed on the outside of the rotating shaft (18); The second output end of the dual-axis motor (17) is connected to an ejection assembly, the ejection assembly comprising a screw rod (20) mounted on the second output end of the dual-axis motor (17), the screw rod (20) penetrating and connected to the interior of the support box (5); The outer side of the screw rod (20) is threadedly connected to a movable plate (21), the interior of the movable plate (21) is penetrated by a guide rod (22), a support rod (23) is provided on the movable plate (21), and a top block (24) is mounted on the upper end of the support rod (23); The ejector block (24) is installed inside an ejector box (25), a through slot (30) is provided on the ejector block (24), and the ejector box (25) is arranged at the bottom of the lower mold (6) of the switch housing.

2. The injection molding machine for producing a switch housing for an automobile window lifter according to claim 1, characterized in that: An auxiliary component is installed inside the support box (5), and the auxiliary component comprises a gas delivery component (26) installed inside the support box (5); an output end of the gas delivery component (26) is connected to a sleeve (28) via a delivery pipe (27); the sleeve (28) is installed outside the support rod (23); the support rod (23) is a hollow structure, and a through hole (29) is provided on the support rod (23).

3. The injection molding machine for producing a switch housing for an automobile window lifter according to claim 1, characterized in that: The outer side of the rotating shaft (18) is connected to a rotating rod (32) via a driving member (31); a pushing assembly is installed on the outer side of the rotating rod (32); the pushing assembly comprises a gear (33) fixed on the outer side of the rotating rod (32); the gear (33) is installed inside a storage box (34); and the storage box (34) is arranged on one side of the frame (1).

4. The injection molding machine for producing a switch housing for an automobile window lifter according to claim 3, characterized in that: A limiting groove (35) is provided at the side end of the storage box (34), a rack (36) is installed inside the limiting groove (35), the rack (36) is meshedly connected with the gear (33), a push plate (37) is provided at the end of the rack (36), a tilting block (38) is installed at the side end of the switch housing lower mold (6), a storage box (39) is provided at the bottom of the tilting block (38), and the storage box (39) is arranged on the other side of the frame (1).

5. The injection molding machine for producing automobile window lifter switch housing according to claim 4, characterized in that: The invention also discloses an injection molding process of the injection molding machine, and the specific method steps are as follows: S1: Mold installation: According to the design drawing of the switch housing, a switch housing upper mold (3) and a switch housing lower mold (6) are manufactured and installed; S2: Injection molding preparation: select suitable plastic raw materials for import, and adjust the temperature, pressure and injection speed of the injection molding machine; S3: Injection molding process: the plastic raw material is heated to a molten state, and then injected into the switch housing upper mold (3) and the switch housing lower mold (6), and the plastic is allowed to cool in the mold; S4: demoulding and storage: after the plastic forms a solid in the mold, the switch housing is ejected by the ejection component, and the switch housing is moved into the storage box (39) for storage by the push component.

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