A household appliance injection molding part mold facilitating demolding

Abstract

The application discloses a household appliance injection molding part mold convenient for demolding, and belongs to the technical field of molds. The household appliance injection molding part mold convenient for demolding comprises a mounting frame, a spiral feeding cylinder is fixedly installed at the upper end of the mounting frame, a connecting seat is fixedly connected to one end of the spiral feeding cylinder, a discharging groove is formed in the lower end of the spiral feeding cylinder, an extrusion pipeline is fixedly connected to the discharging groove, a spiral driving assembly is installed in the spiral feeding cylinder, and a plug prevention assembly is fixedly installed at the end of the spiral driving assembly close to the connecting seat. A mold plastic part assembly is fixedly installed at the lower end of the mounting frame, and a driving assembly is fixedly installed at one end of the mold plastic part assembly. The plug prevention assembly is integrated in the spiral feeding cylinder, so that self-cleaning can be completed on line without stopping and disassembling and cleaning, the pain points that a traditional feeding mechanism is prone to blockage and needs frequent manual cleaning are solved fundamentally, and the feeding continuity and stability are remarkably improved.

Description

Technical Field

[0001] This invention belongs to the field of mold technology, specifically relating to a mold for easy demolding of household appliance injection parts. Background Technology

[0002] Injection molding is one of the most important manufacturing processes for the outer shell and internal structural components of home appliances. Its mold structure directly determines the molding quality and production efficiency. In existing injection molds for home appliances, the spiral feeding mechanism is the core component for conveying molten plastic raw materials. However, in actual production, trace impurities, lumps, or carbonized particles inevitably mix into the raw materials. Over time, these particles accumulate and can easily cause blockages between the spiral feeding rod and the inner wall of the barrel, leading to unstable material supply and fluctuating material pressure, which in turn affects the density and appearance quality of the injection molded parts. Traditional methods require stopping the machine to disassemble and clean the feeding barrel, which is not only time-consuming and labor-intensive but also disrupts the continuous production cycle.

[0003] On the other hand, there is also room for improvement in the demolding process of injection molded parts. Currently, ejector pins or push plates are mostly used, but the ejection action is often rigidly coupled with the mold opening stroke. It is difficult to adjust the ejection force and timing independently, which can easily lead to defects such as whitening, warping or tearing in thin-walled or deep-cavity household appliance plastic parts during demolding, resulting in an increased scrap rate. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a mold for household appliance injection parts that is easy to demold.

[0005] The technical solution adopted to solve the above-mentioned technical problems is as follows: a household appliance injection mold that is easy to demold, including a mounting frame, a spiral feeding cylinder fixedly mounted on the upper end of the mounting frame, a connecting seat fixedly connected to one end of the spiral feeding cylinder, a discharge groove opened at the lower end of the spiral feeding cylinder, an extrusion pipe fixedly connected to the discharge groove, an installation pipe fixedly mounted on the upper end of the spiral feeding cylinder, the installation pipe being fixedly mounted to a hopper, a spiral drive assembly installed inside the spiral feeding cylinder, an anti-clogging component fixedly mounted on one end of the spiral drive assembly near the connecting seat; a mold plastic part assembly fixedly mounted on the lower end of the mounting frame, and a drive assembly fixedly mounted on one end of the mold plastic part assembly.

[0006] Through the above technical solutions, the anti-clogging component provides an active anti-clogging solution for the problem of easy material blockage in traditional injection molding machines. It can automatically remove impurities, clumps, or carbonized particles accumulated between the spiral feed rod and the inner wall of the barrel without stopping the machine.

[0007] Furthermore, the screw drive assembly includes a drive shaft rotatably connected to the connecting seat. A driven gear is fixedly connected to the upper end of the drive shaft, and a drive gear meshes with one side of the driven gear. An installation groove is provided in the connecting seat, and a first motor is fixedly installed in the installation groove. The output end of the first motor is fixedly connected to the drive gear. An upper insertion groove is provided at the lower end of the drive shaft, and a first connecting post is slidably connected in the upper insertion groove. A first sliding protrusion is fixedly connected to the outside of the first connecting post. A power connecting shaft is fixedly installed at the lower end of the first connecting post, and the power connecting shaft is fixedly connected to the screw feeding rod.

[0008] Through the above technical solution, the output end of the first motor drives the drive gear to rotate, and the drive gear drives the driven gear to rotate through meshing. The lower end of the drive shaft slides with the first connecting post through the upper insertion groove, and the first connecting post is fixedly connected to the screw feed rod through the power connecting shaft.

[0009] Furthermore, a positioning post is fixedly connected to the inner wall of the lower end of the spiral feeding cylinder, a limiting seat is fixedly installed on the upper end of the positioning post, a connecting shaft is fixedly connected to the upper end of the positioning post, a second connecting post is fixedly connected to the upper end of the connecting shaft, a lower insertion groove is opened at the lower end of the spiral feeding rod, the lower insertion groove is slidably connected to the sliding protrusion on the second connecting post, a limiting rod is fixedly connected to the lower surface of the spiral feeding rod, the limiting rod is fixedly connected to the positioning post, and a return spring is sleeved on the outer side of the connecting shaft, the two ends of the return spring are fixedly connected to the lower surfaces of the positioning post and the limiting rod, respectively.

[0010] With the above technical solution, when the screw feeder moves downward, the limit rod pushes the reset spring to compress and store energy. When the screw feeder tends to move upward, the reset spring releases its elastic potential energy, pushing the limit rod to drive the screw feeder to reset upward.

[0011] Furthermore, the anti-clogging component includes a fixed disc fixedly connected to the inner wall of the spiral feed cylinder, an mounting disc below the fixed disc, the mounting disc being fixedly connected to a power connection shaft, an adjustment disc between the fixed disc and the mounting disc, a rotating seat rotatably connected to one side of the lower surface of the fixed disc, the rotating seat being fixedly connected to the adjustment disc, a drive gear rotatably connected to the side of the fixed disc away from the rotating seat, a linkage gear meshing with one side of the drive gear, the linkage gear being rotatably connected to the fixed disc, a threaded rod internally threaded to the linkage gear, a push column fixedly connected to the lower end of the threaded rod, a second motor fixedly connected inside the connection seat, the output end of the second motor being fixedly connected to the drive gear, and a ball bearing seat fixedly connected to the upper surface of the mounting disc, with multiple steel balls installed inside the ball bearing seat.

[0012] With the above technical solution, when the screw feeder becomes stuck due to sand or lumps mixed in the material, the second motor is started. Through the meshing transmission of the drive gear and the linkage gear, the screw rod pushes the adjustment plate to tilt. At this time, the steel balls on the mounting disc make periodic contact with the tilted adjustment plate surface, forcing the screw feeder to generate axial reciprocating vibration while rotating and feeding material. This vibration can disperse the material adhering to the edge of the screw blade and push it into the gap of the cylinder wall, and discharge it with the material flow, thereby keeping the inner wall of the cylinder unobstructed and avoiding material supply interruption caused by long-term accumulation.

[0013] Furthermore, the drive assembly includes a drive frame fixedly mounted to the mounting bracket, hydraulic cylinders are symmetrically fixedly mounted inside the drive frame, a mounting top block is fixedly connected to one side of the drive frame, a small hydraulic pump station is fixedly connected inside the drive frame, and multiple oil pipe interfaces are provided on the top.

[0014] Through the above technical solution, a small hydraulic pump station supplies high-pressure hydraulic oil to the hydraulic cylinders via an oil pipe interface, controlling the extension and retraction of the piston rod. The output end of the hydraulic cylinder is fixedly connected to the drive chassis. When the piston rod retracts, it drives the drive chassis and the second module to move towards the drive frame, realizing the mold opening action. When the piston rod extends, it pushes the second module to reset and close the mold. The two hydraulic cylinders are symmetrically arranged to ensure the balance of force during mold opening and closing, avoiding mold jamming or wear caused by uneven loading.

[0015] Furthermore, the mold plastic part assembly includes a drive chassis fixedly connected to the output end of the hydraulic cylinder, an mounting plate fixedly connected to the upper end of the mounting bracket, a first module fixedly mounted on one side of the mounting plate, a second module provided on one side of the first module, and multiple sets of coolant holes respectively provided in the first module and the second module.

[0016] Through the above technical solution, during the injection molding and pressure holding process, multiple sets of pre-set coolant holes inside the first and second modules continuously circulate cooling medium to uniformly cool and shape the injection molded part.

[0017] Furthermore, a guide rod is symmetrically fixedly installed on one side of the second module, and a drive chassis is fixedly connected to the other end of the guide rod. The drive chassis is fixedly connected to the output end of the hydraulic cylinder. A top plate is slidably connected to the guide rod, and a top column is fixedly installed on one side of the top plate.

[0018] With the above technical solution, the top post end abuts against the installation top block and is restricted in the opposite direction. The top plate cannot continue to move with the second module, but instead slides relative to the guide rod, squeezing the reset spring. At the same time, it drives multiple sets of ejector pins to extend into the cavity of the second module. The ends of the ejector pins evenly abut against the surface of the cooled and shaped injection molded part, and smoothly eject it from the cavity of the second module to complete the demolding.

[0019] Furthermore, multiple sets of ejector pins are fixedly installed on the side of the top plate away from the top column. The multiple sets of ejector pins are slidably connected to the second module. Each ejector pin is fitted with a reset spring. An injection molding cavity is opened between the first module and the second module.

[0020] The beneficial effects of the present invention are as follows: (1) The present invention integrates an anti-clogging component in the spiral feeding cylinder and uses the meshing transmission of the active gear and the linkage gear driven by the second motor to make the threaded rod push the adjustment plate to produce a controllable tilt. With the rolling contact between the steel ball in the ball seat on the mounting disc and the inclined surface, the rotational motion is converted into axial reciprocating vibration, so that the spiral feeding rod obtains high-frequency axial micro-motion while continuously rotating and feeding. It can actively shake and discharge the sand, gravel, lumps and carbonized particles stuck between the spiral blade and the cylinder wall. It can complete self-cleaning online without stopping the machine for disassembly and cleaning, which fundamentally solves the pain points of the traditional feeding mechanism being easy to clog and requiring frequent manual cleaning, and significantly improves the continuity and stability of the feeding. (2) The present invention sets multiple sets of independent coolant holes in the first module and the second module respectively. According to the wall thickness difference and heat dissipation requirements of different areas of the product, the coolant flow rate and velocity can be adjusted in different areas to achieve fine and balanced control of the temperature field of the mold cavity surface. The design shortens the overall cooling and setting time, reduces uneven shrinkage and internal stress concentration caused by temperature difference, thereby improving the dimensional stability and mechanical properties of injection molded parts, and at the same time helps to shorten the molding cycle and improve production efficiency; (3) The overall structure of the present invention is compact and the layout is reasonable. From spiral feeding, anti-clogging self-cleaning, mold closing injection to demolding and ejection, all links are coordinated and linked, with a high degree of automation. The entire process can be completed without additional manual intervention, which reduces the labor intensity of operators, reduces the frequency of machine downtime maintenance and equipment wear, and comprehensively improves the economic benefits and reliability of home appliance injection molding production. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the mold plastic part assembly of the present invention; Figure 3 This is an internal structural diagram of the mold plastic part assembly of the present invention; Figure 4 This is the present invention. Figure 3 A magnified view of a section at point A in the middle; Figure 5 This is a three-dimensional structural diagram of the spiral drive component of the present invention; Figure 6 This is a cross-sectional view of the spiral drive assembly of the present invention; Figure 7 This is the present invention. Figure 6 A magnified view of a section at point B in the middle; Figure 8This is a diagram showing the internal structure of the spiral feeding rod of the present invention.

[0022] Reference numerals: 1. Mounting bracket; 11. Screw feeder; 12. Connecting seat; 13. Discharge chute; 14. Extrusion pipe; 15. Installation pipe; 2. Screw drive assembly; 21. Drive shaft; 22. Driven gear; 23. Drive gear; 24. Mounting slot; 25. First motor; 26. Upper insertion slot; 27. First connecting post; 28. Sliding protrusion; 29. ​​Power connecting shaft; 3. Screw feeder rod; 30. Positioning post; 31. Limiting seat; 32. Connecting shaft; 33. Second connecting post; 34. Return spring; 35. Limiting rod; 36. Lower insertion slot; 4. Anti-clogging Components; 41. Fixed plate; 42. Adjusting plate; 43. Rotating seat; 44. Mounting disc; 45. Drive gear; 46. Second motor; 47. Linkage gear; 48. Threaded rod; 49. Push column; 410. Ball bearing seat; 411. Steel ball; 5. Mold plastic part assembly; 50. Mounting plate; 51. First module; 52. Second module; 53. Guide rod; 54. Drive chassis; 55. Top plate; 56. Top column; 57. Ejector pin; 58. Spring; 59. Injection cavity; 6. Drive assembly; 60. Drive frame; 61. Top block; 62. Hydraulic cylinder. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0024] like Figures 1-8 As shown, this embodiment of a household appliance injection mold for easy demolding includes a mounting frame 1. A spiral feeding cylinder 11 is fixedly mounted on the upper end of the mounting frame 1. A connecting seat 12 is fixedly connected to one end of the spiral feeding cylinder 11. A discharge groove 13 is opened at the lower end of the spiral feeding cylinder 11. An extrusion pipe 14 is fixedly connected to the discharge groove 13. An installation pipe 15 is fixedly mounted on the upper end of the spiral feeding cylinder 11 and is fixedly mounted to the hopper. A spiral drive assembly 2 is installed inside the spiral drive assembly 11. An anti-clogging assembly 4 is fixedly mounted on one end of the spiral drive assembly 2 near the connecting seat 12. A mold plastic part assembly 5 is fixedly mounted on the lower end of the mounting frame 1. A drive assembly 6 is fixedly mounted on one end of the mold plastic part assembly 5. The anti-clogging assembly 4 is an active anti-clogging solution for the problem of easy material blockage in traditional injection molding machines. It can automatically remove impurities, lumps, or carbonized particles accumulated between the spiral feeding rod 3 and the inner wall of the cylinder without stopping the machine.

[0025] like Figures 1-6As shown, the screw drive assembly 2 includes a drive shaft 21 rotatably connected to the connecting seat 12. A driven gear 22 is fixedly connected to the upper end of the drive shaft 21, and a drive gear 23 is meshed with the driven gear 22 on one side. A mounting groove 24 is provided in the connecting seat 12, and a first motor 25 is fixedly installed in the mounting groove 24. The output end of the first motor 25 is fixedly connected to the drive gear 23. An upper insertion groove 26 is provided at the lower end of the drive shaft 21, and a first connecting post 27 is slidably connected in the upper insertion groove 26. A first sliding protrusion 28 is fixedly connected to the outside of the first connecting post 27. A power connecting shaft 29 is fixedly installed at the lower end of the first connecting post 27 and is fixedly connected to the screw feed rod 3. The output end of the first motor 25 drives the drive gear 23 to rotate. The drive gear 23 meshes with the driven gear 22, thereby driving the drive shaft 21 to rotate. The lower end of the drive shaft 21 slides with the first connecting post 27 through the upper insertion groove 26. The first connecting post 27 is fixedly connected to the screw feed rod 3 through the power connecting shaft 29.

[0026] like Figures 1-8 As shown, a positioning post 30 is fixedly connected to the inner wall of the lower end of the spiral feeding cylinder 11. A limiting seat 31 is fixedly installed on the upper end of the positioning post 30. A connecting shaft 32 is fixedly connected to the upper end of the positioning post 30. A second connecting post 33 is fixedly connected to the upper end of the connecting shaft 32. A lower insertion groove 36 is opened at the lower end of the spiral feeding rod 3. The lower insertion groove 36 is slidably connected to the sliding protrusion on the second connecting post 33. A limiting rod 35 is fixedly connected to the lower surface of the spiral feeding rod 3. The limiting rod 35 is fixedly connected to the positioning post 30. A return spring 34 is sleeved on the outer side of the connecting shaft 32. The two ends of the return spring 34 are fixedly connected to the lower surfaces of the positioning post 30 and the limiting rod 35, respectively. When the spiral feeding rod 3 moves downward, the limiting rod 35 pushes the return spring 34 to compress and store energy. When the spiral feeding rod 3 has an upward tendency, the return spring 34 releases elastic potential energy and pushes the limiting rod 35 to drive the spiral feeding rod 3 to return upward.

[0027] like Figures 1-7As shown, the anti-clogging component 4 includes a fixed disk 41 fixedly connected to the inner wall of the spiral feed cylinder 11. A mounting disk 44 is disposed below the fixed disk 41 and is fixedly connected to the power connection shaft 29. An adjusting disk 42 is disposed between the fixed disk 41 and the mounting disk 44. A rotating seat 43 is rotatably connected to one side of the lower surface of the fixed disk 41. The rotating seat 43 is fixedly connected to the adjusting disk 42. A drive gear 45 is rotatably connected to the side of the fixed disk 41 away from the rotating seat 43. A linkage gear 47 is meshed on one side of the drive gear 45 and is rotatably connected to the fixed disk 41. A threaded rod 48 is internally threaded onto the linkage gear 47. A push column 49 is fixedly connected to the lower end of the threaded rod 48. A second motor 46 is fixedly connected inside the connecting seat 12. The output end of 46 is fixedly connected to the drive gear 45. A ball bearing seat 410 is fixedly connected to the upper surface of the mounting disc 44. Multiple steel balls 411 are installed in the ball bearing seat 410. When the screw feed rod 3 gets stuck due to sand or lumps mixed in the material, the second motor 46 is started. Through the meshing transmission of the drive gear 45 and the linkage gear 47, the threaded rod 48 pushes the adjusting disc 42 to tilt. At this time, the steel balls 411 on the mounting disc 44 make periodic contact with the surface of the tilted adjusting disc 42, forcing the screw feed rod 3 to generate axial reciprocating vibration while rotating and feeding material. This vibration can disperse the material adhering to the edge of the screw blade and push it into the gap of the cylinder wall, and discharge it with the material flow, thereby keeping the inner wall of the cylinder unobstructed and avoiding the interruption of material supply due to long-term accumulation.

[0028] like Figures 1-3 As shown, the drive assembly 6 includes a drive frame 60 fixedly mounted to the mounting bracket 1. Hydraulic cylinders 62 are symmetrically fixedly mounted inside the drive frame 60. A mounting top block 61 is fixedly connected to one side of the drive frame 60. A small hydraulic pump station is fixedly connected inside the drive frame 60, and multiple oil pipe interfaces are provided on the top. The small hydraulic pump station supplies high-pressure hydraulic oil to the hydraulic cylinders 62 through the oil pipe interfaces, controlling the extension and retraction of the piston rod. The output end of the hydraulic cylinder 62 is fixedly connected to the drive chassis 54. When the piston rod retracts, it drives the drive chassis 54 and the second module 52 to move towards the drive frame 60, realizing the mold opening action. When the piston rod extends, it pushes the second module 52 to reset and close the mold. The symmetrical arrangement of the two hydraulic cylinders 62 ensures the balance of force during mold opening and closing, avoiding mold jamming or wear caused by uneven loading.

[0029] like Figures 1-4As shown, the mold plastic part assembly 5 includes a drive chassis 54 fixedly connected to the output end of the hydraulic cylinder 62. A mounting plate 50 is fixedly connected to the upper end of the mounting bracket 1. A first module 51 is fixedly mounted on one side of the mounting plate 50, and a second module 52 is provided on one side of the first module 51. Multiple sets of coolant holes are respectively provided in the first module 51 and the second module 52. During the injection molding and pressure holding process, the multiple sets of coolant holes in the first module 51 and the second module 52 continuously circulate cooling medium to uniformly cool and shape the injection molded part. Guide rods 53 are symmetrically fixedly mounted on one side of the second module 52. The other end of the guide rods 53 is fixedly connected to the drive chassis 54. The drive chassis 54 is fixedly connected to the output end of the hydraulic cylinder 62. A top plate is slidably connected to the guide rods 53. 55. A top post 56 is fixedly installed on one side of the top plate 55. The end of the top post 56 abuts against the top block 61 and is restricted in the opposite direction. The top plate 55 cannot continue to move with the second module 52, but slides relative to the guide rod 53, squeezing the return spring 58. At the same time, it drives multiple sets of ejector pins 57 to extend into the cavity of the second module 52. The ends of the ejector pins 57 evenly abut against the surface of the cooled and shaped injection molded part, and smoothly eject it from the cavity of the second module 52 to complete the demolding. Multiple sets of ejector pins 57 are fixedly installed on the side of the top plate 55 away from the top post 56. The multiple sets of ejector pins 57 are slidably connected to the second module 52. Return springs 58 are respectively sleeved on the ejector pins 57. An injection cavity 59 is opened between the first module 51 and the second module 52.

[0030] The working principle of this embodiment is as follows: First, the external hopper is connected to the installation pipe 15. Molten plastic raw material enters the spiral feeding cylinder 11 through the installation pipe 15. The first motor 25 is started. The output end of the first motor 25 drives the drive gear 23 to rotate. The drive gear 23 drives the driven gear 22 through meshing, thereby driving the drive shaft 21 to rotate. The lower end of the drive shaft 21 slides with the first connecting post 27 through the upper insertion groove 26. The first connecting post 27 is fixedly connected to the spiral feeding rod 3 through the power connecting shaft 29, thereby transmitting power to the spiral feeding rod 3. The spiral feeding rod 3 continues to rotate, pushing the material downward spirally. It enters the extrusion pipe 14 through the discharge chute 13 and is finally injected into the injection cavity 59 formed by the mold of the first module 51 and the second module 52. During the injection and holding pressure process, multiple sets of cooling liquid holes preset inside the first module 51 and the second module 52 continuously circulate cooling medium to uniformly cool and shape the injection molded part. When the screw feed rod 3 becomes stuck or blocked due to the presence of sand, lumps, or carbonized particles in the material, and its rotation is obstructed, the second motor 46 is started. The output end of the second motor 46 drives the drive gear 45 to rotate. The drive gear 45 drives the linkage gear 47 to rotate through meshing. The inner thread of the linkage gear 47 engages with the threaded rod 48, causing the threaded rod 48 to move axially toward the adjusting plate 42, pushing the column 49 to touch one end of the adjusting plate 42, causing the adjusting plate 42 to deflect around the rotating seat 43, changing from a horizontal state to an inclined state. At this time, the mounting disc 44 rotates continuously following the power connection shaft 29. Multiple steel balls 411 in the ball bearing seat 410 on it periodically contact and separate from the lower surface of the inclined adjustment disc 42, forcing the mounting disc 44 to reciprocate linearly along the axial direction while rotating. This axial movement is transmitted to the screw feed rod 3 via the power connection shaft 29. When the screw feed rod 3 moves downward, the limit rod 35 pushes the return spring 34 to compress and store energy. When the screw feed rod 3 has an upward tendency, the return spring 34 releases elastic potential energy, pushing the limit rod 35 to drive the screw feed rod 3 to return upward. This cycle repeats. While the screw feed rod 3 rotates and feeds material, it superimposes high-frequency axial vibration, which disperses and pushes out the impurities and clumps accumulated between the edge of the screw blade and the cylinder wall, restoring smooth transportation in the cylinder and ensuring continuous and stable material delivery. After the injection molded part has cooled and solidified in the mold cavity, the hydraulic cylinder 62 is activated. The output end of the hydraulic cylinder 62 retracts, driving the drive chassis 54 to move towards the drive assembly 6. The drive chassis 54 pulls the second module 52 to open synchronously through the guide rod 53, realizing the mold opening action. During this process, the top plate 55 and the top post 56 move together with the second module 52. When the second module 52 opens to the set stroke, the end of the top post 56 abuts against the top block 61 and is restricted in the opposite direction. The top plate 55 cannot continue to move with the second module 52, but slides relative to the guide rod 53, squeezing the return spring 58. At the same time, it drives multiple sets of ejector pins 57 to extend into the cavity of the second module 52. The ends of the ejector pins 57 evenly abut against the surface of the cooled and solidified injection molded part, smoothly ejecting it from the cavity of the second module 52, completing the demolding. Then the hydraulic cylinder 62 reverses its action, pushing the second module 52 to reset and close the mold. The ejector pins 57 automatically retract under the action of the return spring 58, ready to enter the next injection cycle.

[0031] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention.

Claims

1. A household appliance injection mold that facilitates demolding, comprising a mounting bracket (1), characterized in that, The mounting frame (1) is fixedly mounted with a spiral feeding cylinder (11) at its upper end. A connecting seat (12) is fixedly connected to one end of the spiral feeding cylinder (11). A discharge trough (13) is opened at the lower end of the spiral feeding cylinder (11). An extrusion pipe (14) is fixedly connected to the discharge trough (13). An installation pipe (15) is fixedly mounted at the upper end of the spiral feeding cylinder (11). The installation pipe (15) is fixedly mounted to the hopper. A spiral drive assembly (2) is installed inside the spiral feeding cylinder (11). An anti-clogging assembly (4) is fixedly mounted at one end of the spiral drive assembly (2) near the connecting seat (12). The lower end of the mounting bracket (1) is fixedly mounted with a mold plastic component assembly (5), and one end of the mold plastic component assembly (5) is fixedly mounted with a drive assembly (6).

2. The easy-to-demold injection mold for household appliances according to claim 1, characterized in that, The spiral drive assembly (2) includes a drive shaft (21) rotatably connected to the connecting seat (12). A driven gear (22) is fixedly connected to the upper end of the drive shaft (21). A drive gear (23) meshes with one side of the driven gear (22). An installation groove (24) is provided in the connecting seat (12). A first motor (25) is fixedly installed in the installation groove (24). The output end of the first motor (25) is fixedly connected to the drive gear (23). An upper insertion groove (26) is provided at the lower end of the drive shaft (21). A first connecting post (27) is slidably connected in the upper insertion groove (26). A first sliding protrusion (28) is fixedly connected to the outside of the first connecting post (27). A power connecting shaft (29) is fixedly installed at the lower end of the first connecting post (27). The power connecting shaft (29) is fixedly connected to the spiral feeding rod (3).

3. The easy-to-demold injection mold for household appliances according to claim 2, characterized in that, A positioning column (30) is fixedly connected to the inner wall of the lower end of the spiral feeding cylinder (11). A limiting seat (31) is fixedly installed on the upper end of the positioning column (30). A connecting shaft (32) is fixedly connected to the upper end of the positioning column (30). A second connecting column (33) is fixedly connected to the upper end of the connecting shaft (32). A lower insertion groove (36) is opened at the lower end of the spiral feeding rod (3). The lower insertion groove (36) is slidably connected to the sliding protrusion on the second connecting column (33). A limiting rod (35) is fixedly connected to the lower surface of the spiral feeding rod (3). The limiting rod (35) is fixedly connected to the positioning column (30). A return spring (34) is sleeved on the outer side of the connecting shaft (32). The two ends of the return spring (34) are fixedly connected to the lower surfaces of the positioning column (30) and the limiting rod (35), respectively.

4. The easy-to-demold injection mold for household appliances according to claim 1, characterized in that, The anti-clogging component (4) includes a fixed disk (41) fixedly connected to the inner wall of the spiral feed cylinder (11). A mounting disk (44) is disposed below the fixed disk (41). The mounting disk (44) is fixedly connected to the power connection shaft (29). An adjusting disk (42) is disposed between the fixed disk (41) and the mounting disk (44). A rotating seat (43) is rotatably connected to one side of the lower surface of the fixed disk (41). The rotating seat (43) is fixedly connected to the adjusting disk (42). A drive gear (45) is rotatably connected to the side of the fixed disk (41) away from the rotating seat (43). A linkage gear (47) is meshed on one side of the drive gear (45). The linkage gear (47) is rotatably connected to the fixed disk (41). A threaded rod (48) is threadedly connected to the linkage gear (47). A push column (49) is fixedly connected to the lower end of the threaded rod (48). A second motor (46) is fixedly connected inside the connecting seat (12). The output end of the second motor (46) is fixedly connected to the drive gear (45). A ball bearing seat (410) is fixedly connected to the upper surface of the mounting disk (44). Multiple steel balls (411) are installed inside the ball bearing seat (410).

5. The easy-to-demold injection mold for household appliances according to claim 1, characterized in that, The drive assembly (6) includes a drive frame (60) fixedly installed with the mounting bracket (1). Hydraulic cylinders (62) are symmetrically fixedly installed inside the drive frame (60). A mounting top block (61) is fixedly connected to one side of the drive frame (60). A small hydraulic pump station is fixedly connected inside the drive frame (60), and multiple oil pipe interfaces are provided on the top.

6. The easy-to-demold injection mold for household appliances according to claim 5, characterized in that, The mold plastic part assembly (5) includes a drive chassis (54) fixedly connected to the output end of a hydraulic cylinder (62). The upper end of the mounting bracket (1) is fixedly connected to a mounting plate (50). A first module (51) is fixedly installed on one side of the mounting plate (50). A second module (52) is provided on one side of the first module (51). Multiple sets of coolant holes are respectively provided in the first module (51) and the second module (52).

7. The easy-to-demold injection mold for household appliances according to claim 6, characterized in that, The second module (52) has a guide rod (53) symmetrically fixedly installed on one side. The other end of the guide rod (53) is fixedly connected to the drive chassis (54). The drive chassis (54) is fixedly connected to the output end of the hydraulic cylinder (62). A top plate (55) is slidably connected on the guide rod (53). A top column (56) is fixedly installed on one side of the top plate (55).

8. The easy-to-demold injection mold for household appliances according to claim 6, characterized in that, Multiple sets of ejector pins (57) are fixedly installed on the side of the top plate (55) away from the top column (56). The multiple sets of ejector pins (57) are slidably connected to the second module (52). Springs (58) are respectively sleeved on the ejector pins (57). An injection cavity (59) is opened between the first module (51) and the second module (52).

Images