Plastic part injection mold convenient for stripping

Abstract

The utility model discloses a plastic part injection mold convenient to strip, which belongs to the technical field of injection molds and comprises a box body, and an injection molding stripping component used for molding and stripping a plastic part is mounted in the box body; the injection molding stripping assembly comprises a molding receiving assembly and a rotary stripping assembly; the rotary stripping assembly is installed in the box body, the molding and receiving assembly is connected with the translation injection molding assembly used for injection molding of plastic parts, the molding and receiving assembly is connected with the box body, the molding and receiving assembly is connected with the rotary stripping assembly, and the rotary stripping assembly is connected with the translation injection molding assembly; and the translation injection molding assembly is mounted in the box body. By means of the mode, accurate butt joint of the injection mold is achieved, meanwhile, when a plastic part is separated from the mold, the problem of plastic adhesion is solved, and rapid stripping is achieved.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to an injection mold for plastic parts that facilitates material removal. Background Technology

[0002] In existing technology, for a spherical plastic part, plastic granules are fed into the screw barrel of an injection molding machine via a feeding system. The screw pushes the plastic granules towards the heating zone, where the heating element heats the plastic to a molten state. As the screw continues to rotate, it propels the molten plastic forward, allowing it to enter the nozzle of the injection mold. The molten plastic then enters the mold cavity, filling the entire cavity and contacting the inner wall of the mold. Simultaneously, the cooling system in the mold activates, absorbing heat from the mold to rapidly cool and solidify the plastic. Once the plastic is completely solidified, the mold separates, ejecting the molded part.

[0003] Among numerous existing technologies, Chinese patent application CN212554810U discloses an injection mold for easy material removal, including a base. Four support columns are fixedly connected to the upper middle part of the base. A first mold is fixedly connected to the upper ends of the four support columns. Support plates are fixedly connected to the upper left and upper right parts of the base. Sliding grooves are opened in the middle of the opposite surfaces of two support plates. A fixing plate is fixedly connected to the upper ends of the two support plates. A pushing device is movably connected to the upper end of the fixing plate. A second mold is fixedly connected to the lower end of the pushing device. Support feet are fixedly connected to the four corners of the lower end of the base. A material removal device is movably connected to the lower middle part of the base.

[0004] However, the injection mold movement and docking in this patented technology is not precise enough, and the plastic still needs to be manually removed after it detaches from the mold, which affects the efficiency of injection molding.

[0005] Based on this, this utility model designs a plastic injection mold that facilitates material removal to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a plastic injection mold that facilitates material removal.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A convenient plastic injection mold includes a housing, inside which is installed an injection molding ejector assembly for molding and ejecting plastic parts. The injection molding ejector assembly includes a mold receiving assembly and a rotary ejector assembly. The rotary ejector assembly is installed inside the housing. The mold receiving assembly is connected to a translational injection molding assembly for molding plastic parts. The mold receiving assembly is connected to the housing, the mold receiving assembly is connected to the rotary ejector assembly, and the rotary ejector assembly is connected to the translational injection molding assembly. The translational injection molding assembly is installed inside the housing.

[0009] Furthermore, the translational injection molding assembly includes a hydraulic cylinder, a support plate one, a mold one, a mold two, a connecting rod, a sliding rod, and a sliding sleeve; the hydraulic cylinder is fixedly installed at the front end of the support plate one, the right end of the support plate one is fixedly connected to the housing, the output end of the hydraulic cylinder is fixedly connected to the right side wall of the mold one, the upper and lower end faces of the mold one are slidably connected to the housing, the mold two is engaged with the mold one through a plastic receiving assembly installed on the right side wall, the mold two is fixedly installed on the inner wall of the housing, the mold two is connected to the rotary stripping assembly, the side wall of the mold one is fixedly connected to one end of the connecting rod, the other end of the connecting rod is fixedly connected to the sliding sleeve, the sliding sleeve is slidably connected to the outer wall of the sliding rod, and both ends of the sliding rod are fixedly installed on the outer wall support of the housing.

[0010] Furthermore, the connecting rods are in two sets and are symmetrically distributed about the mold.

[0011] Furthermore, the translational injection molding assembly also includes a limiting rod; multiple sets of the limiting rod are fixedly installed on the right side wall of mold two, and the left side wall of mold one has a slot for engaging with the limiting rod.

[0012] Furthermore, the molding and receiving assembly includes a crossbar, a connecting plate, a mold groove, a groove one, a groove two, a receiving groove, a cylinder one, and a clamping cylinder; the mold groove, groove one, and groove two are mirror images of each other on the left side wall of mold one and the right side wall of mold two, groove one is engaged with the crossbar, the rear end of the crossbar is fixedly connected to the connecting plate one, groove two is slidably connected with the connecting plate one, the connecting plate one is connected to the rotating unloading assembly, the receiving groove is located at the lower end of the box, cylinder one is fixedly installed on the inner rear wall of the receiving groove, and the output end of cylinder one is fixedly connected to the clamping cylinder.

[0013] Furthermore, the mold groove is hemispherical.

[0014] Furthermore, the receiving trough corresponds to the vertical position of the crossbar during material discharge.

[0015] Furthermore, the rotary unloading assembly includes a second support plate, a second cylinder, a second connecting plate, a spline, a belt drive assembly, and a motor. The second support plate is fixedly installed on the inner left wall of the housing. The second cylinder is placed on the upper end of the second support plate and fixedly connected to the inner left wall of the housing. The output end of the second cylinder is fixedly connected to the second connecting plate. The second connecting plate is slidably connected to the upper end of the second support plate. The second connecting plate is rotatably connected to one end of the spline. The other end of the spline is fixedly connected to the first connecting plate. The outer wall of the spline is slidably connected to the upper right part of the second support plate and the second mold. The outer wall of the spline is fixedly connected to the shaft of one end of the belt drive assembly. The shaft of the other end of the belt drive assembly is fixedly connected to the output end of the motor. The two end drives of the belt drive assembly are rotatably connected to the upper right side wall of the second support plate. The motor is fixedly installed on the upper part of the second support plate.

[0016] Compared with the prior art, the advantages of this utility model are as follows: 1. When this utility model is used, when plastic parts need to be injection molded, the translational injection assembly is connected to the plastic mold receiving assembly after it moves, ensuring that the corresponding position of the injection groove of the mold is accurate. After the injection solidifies, the mold in the translational injection assembly separates, and the rotating stripping assembly drives the plastic part to move to the right and get away from the translational injection assembly. The rotating stripping assembly then rotates to make the translational injection assembly get away from the plastic mold receiving assembly. The plastic mold receiving assembly clamps and releases the plastic part, achieving strong release.

[0017] 2. When this utility model is in use, if injection molding is required, the hydraulic cylinder pushes mold one to move to the left. Mold one drives the connecting rod to move to the left, and the connecting rod drives the sliding sleeve to move to the left. The sliding sleeve slides to the left on the sliding rod, realizing the limiting sliding of mold one. Mold one is engaged with mold two through the limiting rod. At this time, slurry is injected through the injection hole on mold one. The slurry is formed in the combined groove of mold one and mold two, realizing the shaping of the plastic part. When it is necessary to remove the plastic part, the output end of the hydraulic cylinder moves to the right, causing mold one to disengage from mold two. At this time, the plastic part is exposed. The plastic part is removed from mold two through the molding and receiving components and the rotating unloading components. The two sets of connecting rods make both the front and rear ends of mold one limited and slide, realizing the precise docking of the molds.

[0018] 3. When this utility model is in use, if mold engagement is required, mold one moves to the left. At this time, the crossbar and connecting plate one engage with corresponding slot one and slot two. At this time, the hemispherical mold slots on mold one and mold two are closed, and the slurry is formed between the hemispherical mold slot and the crossbar, realizing accurate mold forming. When the plastic part is stuck on the crossbar, after the crossbar is rotated to the right by the rotating stripping component, cylinder one drives the clamping cylinder to move upward. The clamping cylinder clamps the plastic part at the corresponding position. Cylinder one drives downward, and the plastic part is pulled down and removed from the crossbar, realizing further stripping of the plastic part.

[0019] 4. When this utility model is in use, if material removal is required, mold one moves to the right to disengage from mold two. The output end of cylinder two pushes connecting plate two to move to the right. Connecting plate two drives spline to move to the right. Spline drives connecting plate one to move to the right. Connecting plate one drives the crossbar to move to the right. The plastic part is driven to disengage from mold two. At this time, the plastic part is hung on the crossbar. The motor drives one end of the belt drive assembly to rotate. The belt drives the other end of the drive wheel to rotate. The drive wheel drives spline to rotate. Spline drives connecting plate one to rotate. Connecting plate one drives the crossbar to rotate 90 degrees counterclockwise with reference to the right view. At this time, the end of the crossbar away from connecting plate one hangs down on the crossbar. The clamping cylinder clamps the plastic part and pulls it down, realizing the convenient removal of the plastic part. Attached Figure Description

[0020] 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.

[0021] Figure 1 This utility model provides a three-dimensional plastic injection mold for easy material removal. Figure 1 ;

[0022] Figure 2 This is a front view of a plastic injection mold for easy material removal according to the present invention.

[0023] Figure 3 This is a top view of a plastic injection mold for easy material removal according to the present invention;

[0024] Figure 4 This utility model provides a three-dimensional plastic injection mold for easy material removal. Figure 2 ;

[0025] Figure 5 This utility model provides a partial three-dimensional representation of a plastic injection mold for easy material removal. Figure 1 ;

[0026] Figure 6 For along Figure 2 A three-dimensional view with a portion removed along the AA direction;

[0027] Figure 7 for Figure 5 Enlarged view of point B in the middle.

[0028] The labels in the diagram represent:

[0029] 1. Housing; 2. Translational injection molding assembly; 21. Hydraulic cylinder; 22. Support plate one; 23. Mold one; 24. Mold two; 25. Connecting rod; 26. Sliding rod; 27. Sliding sleeve; 28. Limiting rod; 3. Injection molding stripping assembly; 31. Plastic mold receiving assembly; 311. Crossbar; 312. Connecting plate one; 313. Mold groove; 314. Groove one; 315. Groove two; 316. Receiving groove; 317. Cylinder one; 318. Clamping cylinder; 32. Rotary stripping assembly; 321. Support plate two; 322. Cylinder two; 323. Connecting plate two; 324. Spline; 325. Belt drive assembly; 326. Motor. Detailed Implementation

[0030] 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.

[0031] 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.

[0032] Example 1: In some embodiments, please refer to the accompanying drawings. Figures 1-7 A convenient plastic injection mold for ejection includes a housing 1, inside which is installed an injection ejection assembly 3 for ejecting the plastic part from the mold. The injection ejection assembly 3 includes a mold receiving assembly 31 and a rotary ejection assembly 32. The rotary ejection assembly 32 is installed inside the housing 1. The mold receiving assembly 31 is connected to a translational injection molding assembly 2 for injection molding the plastic part. The mold receiving assembly 31 is connected to the housing 1, the rotary ejection assembly 32, and the translational injection molding assembly 2. The translational injection molding assembly 2 is installed inside the housing 1.

[0033] When this utility model is used, if plastic parts need to be injection molded, the translational injection molding component 2 is connected to the mold receiving component 31 after it moves, ensuring that the corresponding position of the injection groove of the mold is accurate. After the injection solidifies, the mold in the translational injection molding component 2 separates, and the rotating stripping component 32 drives the plastic part to move to the right and get away from the translational injection molding component 2. The rotating stripping component 32 then rotates to make the translational injection molding component 2 get away from the mold receiving component 31. The mold receiving component 31 clamps and releases the plastic part, achieving a strong release.

[0034] The translational injection molding assembly 2 includes a hydraulic cylinder 21, a support plate 22, a mold 23, a mold 24, a connecting rod 25, a sliding rod 26, and a sliding sleeve 27. The hydraulic cylinder 21 is fixedly installed at the front end of the support plate 22, the right end of the support plate 22 is fixedly connected to the housing 1, the output end of the hydraulic cylinder 21 is fixedly connected to the right side wall of the mold 23, the upper and lower end faces of the mold 23 are slidably connected to the housing 1, and the mold 24 is engaged with the mold 23 by a molding and material receiving assembly 31 installed on the right side wall. The mold 24 is fixedly installed on the support plate 25. On the inner wall of the housing 1, mold 24 is connected to the rotary stripping assembly 32, the side wall of mold 1 is fixedly connected to one end of connecting rod 25, the other end of connecting rod 25 is fixedly connected to sliding sleeve 27, sliding sleeve 27 is slidably connected to the outer wall of sliding rod 26, and both ends of sliding rod 26 are fixedly installed on the outer wall support of housing 1; the translational injection assembly 2 also includes a limiting rod 28; the limiting rod 28 has multiple sets fixedly installed on the right side wall of mold 24 and the left side wall of mold 1 is provided with a slot for engaging with the limiting rod 28.

[0035] When this utility model is in use, if injection molding is required, the hydraulic cylinder 21 pushes the mold 1 23 to move to the left. The mold 1 23 drives the connecting rod 25 to move to the left, and the connecting rod 25 drives the sliding sleeve 27 to move to the left. The sliding sleeve 27 slides to the left on the sliding rod 26, realizing the limiting sliding of the mold 1 23. The mold 1 23 is engaged with the mold 24 through the limiting rod 28. At this time, the slurry is injected through the injection hole on the mold 1 23. The slurry is formed in the combined groove of the mold 1 23 and the mold 24, realizing the shaping of the plastic part. When the plastic part needs to be removed, the output end of the hydraulic cylinder 21 moves to the right, causing the mold 1 23 to disengage from the mold 24. At this time, the plastic part is exposed. The plastic part is removed from the mold 24 by the molding receiving component 31 and the rotating unloading component 32.

[0036] The connecting rod 25 has two sets and is symmetrically distributed about the mold 23.

[0037] When this utility model is in use, the two sets of connecting rods 25 enable the front and rear ends of the mold 23 to slide in a limited manner, thereby achieving precise docking of the mold.

[0038] The molding and receiving assembly 31 includes a crossbar 311, a connecting plate 312, a mold groove 313, a groove 314, a groove 315, a receiving groove 316, a cylinder 317, and a clamping cylinder 318. The mold grooves 313, 314, and 315 are mirror images of each other on the left side wall of mold 23 and the right side wall of mold 24. The groove 314 engages with the crossbar 311. The rear end of the crossbar 311 is fixedly connected to the connecting plate 312. The groove 315 is slidably connected to the connecting plate 312. The connecting plate 312 is connected to the rotating unloading assembly 32. The receiving groove 316 is located at the lower end of the housing 1. The cylinder 317 is fixedly installed on the inner rear wall of the receiving groove 316. The output end of the cylinder 317 is fixedly connected to the clamping cylinder 318. The mold groove 313 is hemispherical. The receiving groove 316 corresponds to the vertical position of the crossbar 311 during unloading.

[0039] When this utility model is in use, if mold engagement is required, mold 23 moves to the left. At this time, the crossbar 311 and connecting plate 312 engage with the corresponding slots 314 and 315. The hemispherical mold slots 313 on mold 23 and mold 24 are closed, and the slurry is formed between the hemispherical mold slots 313 and the crossbar 311, achieving accurate mold forming. When the plastic part is stuck to the crossbar 311, after the crossbar 311 is rotated to the right by the rotating stripping component 32, cylinder 317 drives the clamping cylinder 318 to move upward. The clamping cylinder 318 clamps the plastic part at the corresponding position. Cylinder 317 drives downward, and the plastic part is pulled down and detached from the crossbar 311, achieving further stripping of the plastic part.

[0040] The rotary unloading assembly 32 includes a second support plate 321, a second cylinder 322, a second connecting plate 323, a spline 324, a belt drive assembly 325, and a motor 326. The second support plate 321 is fixedly installed on the inner left wall of the housing 1. The second cylinder 322 is placed on the upper end of the second support plate 321 and fixedly connected to the inner left wall of the housing 1. The output end of the second cylinder 322 is fixedly connected to the second connecting plate 323. The second connecting plate 323 is slidably connected to the upper end of the second support plate 321. One end of the second connecting plate 323 is connected to the spline 324. The spline 324 is connected to the other end of the connecting plate 312. The outer wall of the spline 324 is slidably connected to the upper right part of the support plate 321 and the mold 24. The outer wall of the spline 324 is fixedly connected to the shaft of one end of the belt drive assembly 325. The shaft of the other end of the belt drive assembly 325 is fixedly connected to the output end of the motor 326. The two end drives of the belt drive assembly 325 are rotatably connected to the upper right side wall of the support plate 321. The motor 326 is fixedly installed on the upper part of the support plate 321.

[0041] When this utility model is in use, if material removal is required, mold 1 23 moves to the right to disengage from mold 2 24. The output end of cylinder 2 322 pushes connecting plate 2 323 to move to the right. Connecting plate 2 323 drives spline 324 to move to the right. Spline 324 drives connecting plate 1 312 to move to the right. Connecting plate 1 312 drives crossbar 311 to move to the right. The plastic part is pulled away from mold 2 24 and is now hung on crossbar 311. Motor 326 drives one end of belt drive assembly 325 to rotate. The belt drives the other end of the belt drive to rotate, and the belt drive drives spline 324 to rotate. Spline 324 drives connecting plate 1 312 to rotate. Connecting plate 1 312 drives crossbar 311 to rotate 90 degrees counterclockwise relative to the right view. At this time, the end of crossbar 311 away from connecting plate 1 312 hangs down on crossbar 311. Clamping cylinder 318 clamps the plastic part and pulls it down, realizing the convenient removal of the plastic part.

[0042] 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. A plastic injection mold for easy material removal, comprising a housing (1), characterized in that: The housing (1) is equipped with an injection molding stripping assembly (3) for molding and stripping plastic parts; The injection molding stripping assembly (3) includes a molding take-up assembly (31) and a rotary stripping assembly (32); The rotary stripping assembly (32) is installed inside the housing (1), the plastic receiving assembly (31) is connected to the translational injection molding assembly (2) for plastic parts injection molding, the plastic receiving assembly (31) is connected to the housing (1), the plastic receiving assembly (31) is connected to the rotary stripping assembly (32), and the rotary stripping assembly (32) is connected to the translational injection molding assembly (2); The translational injection molding assembly (2) is installed inside the housing (1).

2. The plastic injection mold for easy material removal according to claim 1, characterized in that, The translational injection molding assembly (2) includes a hydraulic cylinder (21), a support plate (22), a mold (23), a mold (24), a connecting rod (25), a sliding rod (26), and a sliding sleeve (27); The hydraulic cylinder (21) is fixedly installed at the front end of the support plate (22). The right end of the support plate (22) is fixedly connected to the box (1). The output end of the hydraulic cylinder (21) is fixedly connected to the right side wall of the mold (23). The upper and lower end faces of the mold (23) are slidably connected to the box (1). The mold (24) is engaged with the mold (23) by the molding and receiving assembly (31) installed on the right side wall. The mold (24) is fixedly installed on the inner wall of the box (1). The mold (24) is connected to the rotating unloading assembly (32). The side wall of the mold (23) is fixedly connected to one end of the connecting rod (25). The other end of the connecting rod (25) is fixedly connected to the sliding sleeve (27). The sliding sleeve (27) is slidably connected to the outer wall of the sliding rod (26). The two ends of the sliding rod (26) are fixedly installed on the outer wall support of the box (1).

3. The plastic injection mold for easy material removal according to claim 2, characterized in that, The connecting rod (25) has two sets and is symmetrically distributed about mold one (23).

4. The plastic injection mold for easy material removal according to claim 3, characterized in that, The translational injection molding assembly (2) also includes a limiting rod (28); The limiting rod (28) has multiple sets of fixed installations on the right side wall of mold two (24), and the left side wall of mold one (23) has a slot for engaging with the limiting rod (28).

5. The plastic injection mold for easy material removal according to claim 4, characterized in that, The molding and receiving assembly (31) includes a crossbar (311), a connecting plate (312), a mold groove (313), a groove (314), a groove (315), a receiving groove (316), a cylinder (317), and a clamping cylinder (318); The mold slots (313), slot one (314), and slot two (315) are mirror images of each other on the left side wall of mold one (23) and the right side wall of mold two (24). Slot one (314) is engaged with the crossbar (311). The rear end of the crossbar (311) is fixedly connected to the connecting plate one (312). Slot two (315) is slidably connected with the connecting plate one (312). The connecting plate one (312) is connected to the rotating unloading assembly (32). The receiving trough (316) is opened at the lower end of the box (1). Cylinder one (317) is fixedly installed on the inner rear wall of the receiving trough (316). The output end of cylinder one (317) is fixedly connected to the clamping cylinder (318).

6. The plastic injection mold for easy material removal according to claim 5, characterized in that, The mold groove (313) is hemispherical.

7. The plastic injection mold for easy material removal according to claim 6, characterized in that, The receiving trough (316) corresponds to the vertical position of the crossbar (311) for material removal.

8. The plastic injection mold for easy material removal according to claim 7, characterized in that, The rotary unloading assembly (32) includes a second support plate (321), a second cylinder (322), a second connecting plate (323), a spline (324), a belt drive assembly (325), and a motor (326); The second support plate (321) is fixedly installed on the inner left wall of the housing (1). The second cylinder (322) is placed on the upper end of the second support plate (321) and fixedly connected to the inner left wall of the housing (1). The output end of the second cylinder (322) is fixedly connected to the second connecting plate (323). The second connecting plate (323) is slidably connected to the upper end of the second support plate (321). The second connecting plate (323) is rotatably connected to one end of the spline (324). The other end of the spline (324) is fixedly connected to the first connecting plate (312). The outer wall of the key (324) is slidably connected to the upper right part of the support plate two (321) and the mold two (24). The outer wall of the spline (324) is fixedly connected to the shaft of one end of the belt drive assembly (325). The shaft of the other end of the belt drive assembly (325) is fixedly connected to the output end of the motor (326). The two ends of the belt drive assembly (325) are rotatably connected to the upper right side wall of the support plate two (321). The motor (326) is fixedly installed on the upper part of the support plate two (321).

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