A type of mold for home appliance parts

Abstract

This utility model discloses a mold for household appliance parts, belonging to the field of injection mold technology, including a moving mold, a fixed mold, and a fixed plate; the moving mold is equipped with an automatic sprue removal mechanism for automatically removing sprues; the moving mold is also equipped with an automatic demolding mechanism for automatically demolding the injection molded workpiece; the automatic sprue removal mechanism includes a drive component, a sprue removal component, and a reset component; the drive component drives the sprue removal component and the reset component; the sprue removal component clamps and limits the sprue; the reset component resets the drive component and the sprue removal component when the moving mold and the fixed mold are closed; the moving mold, the sprue removal component, and the reset component are all connected to the drive component; the moving mold and the sprue removal component are all connected to the reset component. Through the above method, this utility model can automatically remove the sprues that are difficult to remove from the injection molded workpiece, reducing manual labor and improving the degree of automation.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to a mold for household appliance parts. Background Technology

[0002] The washing machine base injection mold is a core tooling designed specifically for the mass production of washing machine bases (mostly made of engineering plastics such as ABS and PP, serving functions such as supporting the machine body, shock absorption, and anti-slip). Its structure must precisely match the complex shape of the base—typically including details such as support ribs, mounting holes, and shock-absorbing grooves. The whole mold consists of two core modules: a moving mold and a fixed mold, supplemented by a gating system (to introduce molten plastic into the cavity), a cooling system (to control the molding temperature and efficiency of the plastic part), an ejection system (to complete the demolding of the plastic part), and a guiding and positioning system (to ensure mold closing accuracy). Mold manufacturing needs to achieve continuous operation of high-pressure injection of molten plastic, pressure holding and cooling, and automatic demolding. The daily production capacity of a single mold can reach several thousand pieces. It is a key piece of equipment in the washing machine industry chain to ensure the consistency, stability, and production efficiency of the base. Its precision and lifespan directly determine the structural strength of the washing machine base and the overall assembly compatibility.

[0003] Chinese patent CN214726265U discloses a plastic top cover mold for a washing machine, including a support base. A support plate is provided on one side of the top of the support base. A moving mold is provided on one side of the support plate. Several limiting rods are provided on one side of the moving mold. A hydraulic telescopic rod is located at the middle position of the moving mold near the limiting rods. Several push rods are provided inside the moving mold. One end of each push rod is provided with a hydraulic telescopic rod. A fixed mold is provided on the other side of the top of the support base. A heating sleeve is located at the middle position of one side of the fixed mold. A heating wire is provided inside the heating sleeve. A feeding channel is located at the middle position inside the heating sleeve. Beneficial effects: It can heat the feeding channel, thus preventing the casting liquid from solidifying due to cooling and affecting the working process. It can also use circulating water to cool the moving and fixed molds, improving the cooling effect. The structure is reasonable and easy to use. However, this device still has the following problems:

[0004] 1. After the washing machine base is injection molded, there will be a relatively large gate, and the removal of the gate is quite troublesome;

[0005] 2. When demolding the base of the washing machine, it is difficult to demold due to the presence of many mounting holes and shock-absorbing grooves inside. It is still necessary to manually enter between the fixed mold and the moving mold to remove the workpiece.

[0006] Based on this, this utility model designs a mold for household appliance parts to solve the above problems. Utility Model Content

[0007] In view of the above-mentioned shortcomings of the existing technology, this utility model provides a mold for household appliance parts.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A mold for a household appliance component includes a moving mold, a fixed mold, and a fixing plate;

[0010] The moving mold is equipped with an automatic sprue removal mechanism for automatically removing sprues.

[0011] The moving mold is equipped with an automatic demolding mechanism for automatically demolding the injection molded workpiece;

[0012] The automatic dewatering mechanism includes a drive assembly, a dewatering assembly, and a reset assembly; the drive assembly drives the dewatering assembly and the reset assembly; the dewatering assembly clamps and limits the dewatering outlet; the reset assembly resets the drive assembly and the dewatering assembly when the moving mold and the fixed mold are closed; the moving mold, the dewatering assembly, and the reset assembly are all connected to the drive assembly; the moving mold and the dewatering assembly are all connected to the reset assembly.

[0013] Furthermore, the drive assembly includes a pressing plate, a transverse rod, and a first electric push cylinder; the outer wall of the transverse rod is threaded, and the transverse rod is threaded to the moving mold through the threads on the outer wall; both the transverse rod and the pressing plate are connected to the drain assembly; the transverse rod is connected to the reset assembly; the first electric push cylinder is fixedly connected to the moving mold; and the drive end of the first electric push cylinder is fixedly connected to the pressing plate.

[0014] Furthermore, the two sets of drain assembly inside the transverse rod are symmetrically distributed front and back.

[0015] Furthermore, the drain assembly includes a sliding rod and a reset rod; the sliding rod is slidably connected to the transverse rod; the left end of the sliding rod is fixedly connected to the reset rod; the end of the reset rod in both drain assemblies away from the sliding rod is rotatably connected to the pressing plate through the same pivot; the sliding rod is connected to the reset assembly.

[0016] Furthermore, the reset assembly includes a first stop and a second stop; the first stop is fixedly connected to the right end of the transverse rod; and the right end of each sliding rod is fixedly connected to a second stop.

[0017] Furthermore, the automatic demolding mechanism includes an ejector assembly and an auxiliary unloading assembly; the ejector assembly is used to eject the workpiece from the moving mold, and the auxiliary unloading assembly is used to assist the ejector assembly in removing the workpiece; the pressing plate is connected to the ejector assembly.

[0018] Furthermore, the top material assembly includes a top material plate and a stop block three; the left end of the top material plate is fixedly connected to the pressing plate; the right end of the top material plate is fixedly connected to the stop block three.

[0019] Furthermore, the auxiliary feeding assembly includes a second electric push cylinder, a vertical moving plate, a connecting rod, a limiting rod, a horizontal moving plate, a baffle plate, and a fixed frame; the upper end of the vertical moving plate is fixedly connected to the drive end of the second electric push cylinder; the second electric push cylinder is fixedly connected to the fixed frame; the vertical moving plate is slidably connected to the fixed frame via a limiting slide rod; two connecting rods are symmetrically distributed at the lower end of the vertical moving plate; one end of the connecting rod is hinged to the vertical moving plate; the other end of the connecting rod is hinged to the horizontal moving plate; the ends of the two horizontal moving plates that are far apart from each other are fixedly connected to multiple limiting rods; the limiting rods are slidably connected to the fixed frame via limiting slide grooves; baffle plates are fixedly installed on the sides of the horizontal moving plates that are close to each other.

[0020] Compared with the prior art, the advantages of this utility model are as follows: 1. This utility model can automatically remove the gates that are difficult to remove from the injection molded workpiece, reducing manual labor and improving the degree of automation;

[0021] 2. This utility model can also automatically remove the washing machine base from the mold without requiring manual entry into the middle of the mold to pull it out, thus avoiding burns to the user. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This utility model provides a three-dimensional mold for a household appliance accessory. Figure 1 ;

[0024] Figure 2 This is a front view of a household appliance accessory mold according to the present invention;

[0025] Figure 3 This utility model provides a three-dimensional mold for a household appliance accessory. Figure 2 ;

[0026] Figure 4 For along Figure 2 A three-dimensional view after a portion has been removed along the CC direction;

[0027] Figure 5 for Figure 3 Enlarged view of point A in the middle;

[0028] Figure 6 for Figure 4 Enlarged view of point B in the middle.

[0029] The labels in the diagram represent:

[0030] 1. Moving mold; 2. Fixed mold; 3. Automatic sprue removal mechanism; 31. Drive assembly; 311. Pressing plate; 312. Horizontal movement rod; 313. First electric push cylinder; 32. Sprue removal assembly; 321. Sliding rod; 322. Reset rod; 33. Reset assembly; 332. Stop block one; 333. Stop block two; 4. Automatic demolding mechanism; 41. Ejector assembly; 411. Ejector plate; 412. Stop block three; 42. Auxiliary unloading assembly; 421. Second electric push cylinder; 422. Vertical movement plate; 423. Connecting rod; 424. Limiting rod; 425. Horizontal movement plate; 426. Stop plate; 427. Fixing frame. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0032] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.

[0033] Example 1: In some embodiments, please refer to the accompanying drawings. Figures 1-6 A mold for a household appliance component, comprising a moving mold 1 and a fixed mold 2;

[0034] The moving mold 1 is equipped with an automatic sprue removal mechanism 3 for automatically removing sprues;

[0035] The moving mold 1 is equipped with an automatic demolding mechanism 4 for automatically demolding the injection molded workpiece;

[0036] The automatic drain outlet mechanism 3 includes a drive component 31, a drain outlet component 32, and a reset component 33. The drive component 31 is used to drive the drain outlet component 32 and the reset component 33. The drain outlet component 32 is used to clamp and limit the drain outlet. The reset component 33 is used to reset the drive component 31 and the drain outlet component 32 when the moving mold 1 and the fixed mold 2 are closed. The moving mold 1, the drain outlet component 32, and the reset component 33 are all connected to the drive component 31. The moving mold 1 and the drain outlet component 32 are all connected to the reset component 33.

[0037] In this utility model, when the moving mold 1 and the fixed mold 2 complete the injection molding and mold opening, the moving mold 1 and the fixed mold 2 move away from each other. The driving component 31 drives the gate component 32 to extend and hold the two sides of the gate. Then the driving component 31 continues to drive the gate component 32 to push and rotate the gate to unscrew the gate from the workpiece. At the same time, the workpiece is ejected by the automatic demolding mechanism 4.

[0038] The drive assembly 31 includes a pressing plate 311, a horizontal moving rod 312, and a first electric push cylinder 313; the outer side wall of the horizontal moving rod 312 has threaded grooves, and the horizontal moving rod 312 is threadedly connected to the moving mold 1 through the threaded grooves on the outer side wall; both the horizontal moving rod 312 and the pressing plate 311 are connected to the drain assembly 32; the horizontal moving rod 312 is connected to the reset assembly 33; the first electric push cylinder 313 is fixedly connected to the moving mold 1; the drive end of the first electric push cylinder 313 is fixedly connected to the pressing plate 311.

[0039] The two sets of water outlet assemblies 32 inside the transverse rod 312 are symmetrically distributed front and rear;

[0040] The drain assembly 32 includes a sliding rod 321 and a reset rod 322; the sliding rod 321 is slidably connected to the transverse rod 312; the left end of the sliding rod 321 is fixedly connected to the reset rod 322; the end of the reset rod 322 in the two drain assemblies 32 that is away from the sliding rod 321 is rotatably connected to the pressing plate 311 through the same pivot; the sliding rod 321 is connected to the reset assembly 33.

[0041] The reset assembly 33 includes a first stop 332 and a second stop 333; the first stop 332 is fixedly connected to the right end of the horizontal moving rod 312; the right end of each sliding rod 321 is fixedly connected to a second stop 333.

[0042] In this invention, when the moving mold 1 and the fixed mold 2 complete the injection molding and mold opening, the moving mold 1 and the fixed mold 2 move away from each other. The first electric push cylinder 313 drives the pressing plate 311 to drive the sliding rod 321 and the transverse rod 312 to slide in a limited position through the reset rod 322 until the transverse rod 312 abuts against the pressing plate 311. At this time, the right ends of the two sliding rods 321 are located on both sides of the gate. Then the pressing plate 311 continues to push the transverse rod 312 to the right, and at the same time drives the sliding rod 321 to rotate. The horizontal moving rod 312 drives the sliding rod 321 to rotate and unscrew the gate from the workpiece; this achieves automatic removal of relatively coarse gates. During reset, the first electric push cylinder 313 drives the reset rod 322 through the pressing plate 311, causing the sliding rod 321 and the horizontal moving rod 312 to slide in a limited position until the second stop block 333 abuts against the right end of the horizontal moving rod 312. Then, the first electric push cylinder 313 drives the horizontal moving rod 312 to reset through the second stop block 333 until the first stop block 332 abuts against the moving mold 1.

[0043] The automatic demolding mechanism 4 includes an ejector assembly 41 and an auxiliary unloading assembly 42; the ejector assembly 41 is used to eject the workpiece from the moving mold 1, and the auxiliary unloading assembly 42 is used to assist the ejector assembly 41 in taking out the workpiece; the pressing plate 311 is connected to the ejector assembly 41.

[0044] Multiple top material components 41 are arranged in a circumferential array on the outside of the pressing plate 311;

[0045] The top material assembly 41 includes a top material plate 411 and a stop block 3 412; the left end of the top material plate 411 is fixedly connected to the pressing plate 311; the right end of the top material plate 411 is fixedly connected to the stop block 3 412.

[0046] The auxiliary feeding assembly 42 includes a second electric push cylinder 421, a vertical moving plate 422, a connecting rod 423, a limiting rod 424, a horizontal moving plate 425, a baffle plate 426, and a fixed frame 427. The upper end of the vertical moving plate 422 is fixedly connected to the driving end of the second electric push cylinder 421. The second electric push cylinder 421 is fixedly connected to the fixed frame 427. The vertical moving plate 422 is slidably connected to the fixed frame 427 via a limiting slide rod. Two connecting rods 423 are symmetrically distributed at the lower end of the vertical moving plate 422. One end of the connecting rod 423 is hinged to the vertical moving plate 422. The other end of the connecting rod 423 is hinged to the horizontal moving plate 425. The ends of the two horizontal moving plates 425 that are far apart from each other are fixedly connected to multiple limiting rods 424. The limiting rods 424 are slidably connected to the fixed frame 427 via limiting slide grooves. A baffle plate 426 is fixedly installed on the side of the horizontal moving plates 425 that are close to each other.

[0047] In this invention, when the moving mold 1 and the fixed mold 2 complete the injection molding and open the mold, the moving mold 1 and the fixed mold 2 move away from each other. The first electric push cylinder 313 drives the pressing plate 311 to push the injection-molded workpiece away from the moving mold 1 through the ejector plate 411. Then, the second electric push cylinder 421 starts to drive the vertical moving plate 422 to slide downward along the fixed frame 427. At the same time, the vertical moving plate 422 pushes the two baffle plates 426 to approach each other and insert between the moving mold 1 and the workpiece under the limit of the limiting rod 424 through the connecting rod 423 and the horizontal moving plate 425. At this time, when the moving mold 1 drives the workpiece to move backward, the workpiece is separated from the moving mold 1 by the baffle plate 426 when it moves backward. This allows the workpiece to be taken out of the mold without manual intervention, reducing the risk of workers being burned.

[0048] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An appliance fitting mould comprising a moving mould half (1), a stationary mould half (2) and a fixing plate (5), characterised in that: It also includes an automatic desprue mechanism (3) and an automatic demolding mechanism (4); The moving mold (1) is equipped with an automatic dewatering mechanism (3) for automatically removing the water outlet; The moving mold (1) is equipped with an automatic demolding mechanism (4) for automatically demolding the injection molded workpiece. The automatic drain outlet mechanism (3) includes a drive assembly (31), a drain outlet assembly (32), and a reset assembly (33); the drive assembly (31) is used to drive the drain outlet assembly (32) and the reset assembly (33); the drain outlet assembly (32) is used to clamp and limit the drain outlet; the reset assembly (33) is used to drive the drive assembly (31) and the drain outlet assembly (32) to reset when the moving mold (1) and the fixed mold (2) are closed; the moving mold (1), the drain outlet assembly (32), and the reset assembly (33) are all connected to the drive assembly (31); the moving mold (1) and the drain outlet assembly (32) are all connected to the reset assembly (33).

2. The appliance trim mold of claim 1, wherein, The drive assembly (31) includes a pressing plate (311), a transverse rod (312), and a first electric push cylinder (313); the outer side wall of the transverse rod (312) is threaded, and the transverse rod (312) is threaded to the moving mold (1) through the thread on the outer side wall; both the transverse rod (312) and the pressing plate (311) are connected to the drain assembly (32); the transverse rod (312) is connected to the reset assembly (33); the first electric push cylinder (313) is fixedly connected to the moving mold (1); the drive end of the first electric push cylinder (313) is fixedly connected to the pressing plate (311).

3. The appliance trim mold of claim 2, wherein, The two sets of water outlet assemblies (32) inside the transverse rod (312) are symmetrically distributed front and back.

4. The appliance trim mold of claim 3, wherein, The drain assembly (32) includes a sliding rod (321) and a reset rod (322); the sliding rod (321) is slidably connected to the transverse rod (312); the left end of the sliding rod (321) is fixedly connected to the reset rod (322); the end of the reset rod (322) in the two drain assemblies (32) away from the sliding rod (321) is rotatably connected to the pressing plate (311) through the same rotating shaft; the sliding rod (321) is connected to the reset assembly (33).

5. The appliance trim mold of claim 4, wherein, The reset assembly (33) includes a first stop (332) and a second stop (333); the first stop (332) is fixedly connected to the right end of the transverse rod (312); the right end of each sliding rod (321) is fixedly connected to a second stop (333).

6. The appliance trim mold of claim 5, wherein, The automatic demolding mechanism (4) includes an ejector assembly (41) and an auxiliary unloading assembly (42); the ejector assembly (41) is used to eject the workpiece from the moving mold (1), and the auxiliary unloading assembly (42) is used to assist the ejector assembly (41) in taking out the workpiece; the pressing plate (311) is connected to the ejector assembly (41).

7. The appliance component mold according to claim 6, characterized in that, The top material assembly (41) includes a top material plate (411) and a stop block three (412); the left end of the top material plate (411) is fixedly connected to the pressing plate (311); the right end of the top material plate (411) is fixedly connected to the stop block three (412).

8. The appliance trim mold of claim 7, wherein, The auxiliary feeding assembly (42) includes a second electric pusher cylinder (421), a vertical moving plate (422), a connecting rod (423), a limiting rod (424), a horizontal moving plate (425), a baffle plate (426), and a fixed frame (427); the upper end of the vertical moving plate (422) is fixedly connected to the driving end of the second electric pusher cylinder (421); the second electric pusher cylinder (421) is fixedly connected to the fixed frame (427); the vertical moving plate (422) is slidably connected to the fixed frame (427) through a limiting slide rod; Two connecting rods (423) are symmetrically distributed at the lower end of the moving plate (422); one end of the connecting rod (423) is hinged to the vertical moving plate (422); the other end of the connecting rod (423) is hinged to the horizontal moving plate (425); the ends of the two horizontal moving plates (425) that are far apart from each other are fixedly connected to multiple limiting rods (424); the limiting rods (424) are slidably connected to the fixed frame (427) through limiting grooves; baffle plates (426) are fixedly installed on the sides of the horizontal moving plates (425) that are close to each other.

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