Protective plate injection mold convenient to demold

Abstract

The utility model discloses a protective plate injection mold convenient to demold, which belongs to the technical field of automobile molds, and comprises an injection mold left end mold base, and a cutting assembly used for cutting a water gap is mounted on the injection mold left end mold base; the cutting assembly comprises a limiting assembly and a cutting device, a mold base at the left end of the injection mold is connected with the limiting assembly, and the limiting assembly is connected with the cutting device; a discharging assembly capable of automatically discharging is mounted on a mold base at the left end of the injection mold; a limiting mold assembly for preventing materials from deviating is installed on a mold base at the left end of the injection mold and connected with the discharging assembly and the limiting assembly. By means of the mode, the water gaps in multiple positions are automatically cut, the later cutting procedure is reduced, the working efficiency of the device is improved, and meanwhile the water gaps of the device are cut to remove redundant parts of the water gaps so that the product precision can reach the standard.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile molds, and particularly relates to an injection mold for a protective plate which is convenient for demolding. Background Art

[0002] Injection molding is a common method for mass-producing a certain special-shaped part. By injecting heated material into a mold, the required product can be obtained after it cools and solidifies and demolds.

[0003] For example, the Chinese utility model patent CN214726082U discloses an injection molding mold for a low-noise automobile protective plate. A first mold core and a second mold core which cooperate to form a cavity are arranged on a fixed mold and a movable mold. The shell is attached to the side of the fixed mold, a positioning groove for positioning is arranged on the side of the fixed mold, and a positioning block matched with the positioning groove is arranged on the shell.

[0004] However, it still has the following drawbacks. After the device is injection-molded, there will be some protruding gate residues on the outer wall of the mold. If they are not trimmed, the accuracy of the mold may not meet the requirements.

[0005] Based on this, the utility model designs an injection mold for a protective plate which is convenient for demolding to solve the above problems. Content of the Utility Model

[0006] Aiming at the above-mentioned disadvantages of the prior art, the utility model provides an injection mold for a protective plate which is convenient for demolding.

[0007] To achieve the above purposes, the utility model is realized through the following technical solutions:

[0008] An injection mold for a protective plate which is convenient for demolding, comprising a left-end mold base of the injection mold, and a cutting assembly for cutting gate residues is installed on the left-end mold base of the injection mold;

[0009] The cutting assembly includes a limiting assembly and a cutting device. The left-end mold base of the injection mold is connected to the limiting assembly, and the limiting assembly is connected to the cutting device;

[0010] An automatic discharging assembly is installed on the left-end mold base of the injection mold;

[0011] A limiting mold assembly for preventing material deviation is installed on the left-end mold base of the injection mold, and the limiting mold assembly is connected to the discharging assembly and the limiting assembly.

[0012] Further, the limiting component includes an injection port, a sliding groove, a support sleeve, a stop block, and a second spring. Injection ports are provided at the upper and rear ends of the left mold base of the injection mold. Sliding grooves are provided at the upper and rear ends of the left mold base of the injection mold. A support sleeve is fixedly connected to the inner wall of the right end of the sliding groove. One ends of a pair of second springs are fixedly connected to the support sleeve, and the other ends of the second springs are fixedly connected to stop blocks respectively.

[0013] Further, the injection port is connected to the limiting mold component.

[0014] Further, the sliding groove, the support sleeve, and the stop block are connected to the cutting device.

[0015] Further, the cutting device includes a cutting knife, a resisting block, a sliding rod, and a second limiting groove. A cutting knife is slidably connected in the sliding groove and the support sleeve. A stop block is fixedly connected to the outer wall of the cutting knife. A second limiting groove is provided at the upper end of the cutting knife. The inner wall of the cutting knife is slidably connected to a pair of sliding rods. One end of the sliding rod passes through the second limiting groove and is fixedly connected to the inner wall of the upper end of the sliding groove, and the other end of the sliding rod is fixedly connected to a resisting block.

[0016] Further, the discharging component includes a movable column, a limiting block, a first spring, a T-shaped sliding groove, a support block, and a receiving groove. A plurality of T-shaped sliding grooves are provided at the left end of the left mold base of the injection mold. A movable column is slidably connected in the T-shaped sliding groove. One end of the first spring is fixedly connected to the right wall of the left end of the T-shaped sliding groove. A limiting block is slidably connected to the left end of the T-shaped sliding groove. The other end of the first spring is fixedly connected to one end of the limiting block. The left end of the movable column is fixedly connected to the limiting block. A support block is fixedly connected to the right end of the left mold base of the injection mold. The limiting mold component is connected to the receiving groove, and the support block is slidably connected in the receiving groove.

[0017] Further, a sponge outer sleeve is sleeved on the outer wall of the support block.

[0018] Further, the limiting mold component includes a right mold base of the injection mold, a first mold groove, a first limiting groove, a limiting column, and a second mold groove. A plurality of limiting columns are fixedly connected to the right end of the left mold base of the injection mold near the four corners. A second mold groove is provided at the right end of the left mold base of the injection mold. The right end of the left mold base of the injection mold is in contact connection with the right mold base of the injection mold. First limiting grooves are provided at the left end of the right mold base of the injection mold near the four corners. The limiting columns are slidably connected in the first limiting grooves. A first mold groove is provided at the left end of the right mold base of the injection mold. A plurality of receiving grooves are provided at the left end of the right mold base of the injection mold. Injection ports are provided at the upper and rear sides of the left end of the right mold base of the injection mold.

[0019] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0020] 1. The utility model drives the chute of the limit component and the cutting knife of the cutting device to move left by moving the left end die seat of the injection mold to the left. When the rear end of the cutting knife contacts the external blocking block, at this time, the left end die seat of the injection mold continues to move, and the cutting knife is pressed to move forward along the chute and cooperate with the abutting block on the sliding rod to cut off the sprue in the injection port. The cutting knife is supported by the support sleeve, and at the same time, the forward movement of the cutting knife drives the second spring to move forward and compress the stop block. When the cutting is completed, the left end die seat of the injection mold drives the cutting knife to move right. At this time, the stop block is no longer pressed and pushes the cutting knife to reset. By automatically cutting the sprue at multiple places, the subsequent cutting process is reduced, the working efficiency of the device is improved, and at the same time, the sprue of the device is cut to remove its redundant part, making the product accuracy meet the standard.

[0021] 2. The utility model drives the movable column to move left by moving the left end die seat of the injection mold to the left. When the movable column contacts the external blocking block, the movable column is pressed to move right along the T-shaped chute to eject the material onto the support block. At the same time, the rightward movement of the movable column drives the limit block to move right and compresses the first spring. When the discharging is completed, at this time, the rightward movement of the left end die seat of the injection mold drives the support block to slide into the receiving groove, and at the same time, the movable column and the first spring are no longer pressed. At this time, the first spring pushes the limit block and the movable column to reset. By pushing the material onto the support block to be supported, it is avoided that the material drops and the edges and corners of the material are knocked and damaged, resulting in material damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0023] Figure 1 is a three-dimensional view of a protective plate injection mold for facilitating demolding of the present utility model Figure 1 ;

[0024] Figure 2 is a front view of a protective plate injection mold for facilitating demolding of the present utility model;

[0025] Figure 3 is a left view of a protective plate injection mold for facilitating demolding of the present utility model;

[0026] Figure 4 is a three-dimensional view of a protective plate injection mold for facilitating demolding of the present utility model Figure 2 ;

[0027] Figure 5 is a sectional view taken along the A-A direction of Figure 2 ;

[0028] Figure 6 A sectional view taken along the B-B direction of Figure 3 ;

[0029] Figure 7 A partial part drawing of the cutting component of an injection mold for a protective plate that is easy to demold according to the present utility model;

[0030] Figure 8 A partial part drawing of the discharging component of an injection mold for a protective plate that is easy to demold according to the present utility model.

[0031] The reference numerals in the figure respectively represent:

[0032] 1. Left end mold base of the injection mold; 2. Limit mold assembly; 21. Right end mold base of the injection mold; 22. First mold cavity; 23. First limit groove; 24. Limit post; 25. Second mold cavity; 3. Discharging component; 31. Movable post; 32. Limit block; 33. First spring; 34. T-shaped chute; 35. Support block; 36. Storage groove; 4. Cutting component; 41. Limit component; 42. Cutting device; 411. Injection port; 412. Chute; 413. Support sleeve; 414. Stop block; 415. Second spring; 421. Cutting knife; 422. Counter block; 423. Slide bar; 424. Second limit groove. Specific embodiments

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0034] The "left", "right", "front", "rear", "upper", and "lower" mentioned in the following description are oriented in the perspective direction of the front view.

[0035] In some embodiments, please refer to the attached drawings of the specification Figure 1-8 , an injection mold for a protective plate that is easy to demold, including a left end mold base 1 of the injection mold;

[0036] A cutting component 4 for cutting the sprue is installed on the left end mold base 1 of the injection mold, and the cutting component 4 is connected to the limit mold assembly 2;

[0037] The cutting component 4 includes a limit component 41 and a cutting device 42. The left end mold base 1 of the injection mold is connected to the limit component 41, and the limit component 41 is connected to the cutting device 42 and the limit mold assembly 2;

[0038] The limiting component 41 includes an injection port 411, a sliding groove 412, a support sleeve 413, a stop block 414, and a second spring 415. Injection ports 411 are provided at the upper and rear ends of the left end mold base 1 of the injection mold. The injection port 411 is connected to the limiting mold component 2. Sliding grooves 412 are provided at the upper and rear ends of the left end mold base 1 of the injection mold. A support sleeve 413 is fixedly connected to the inner wall of the right end of the sliding groove 412. One ends of a pair of second springs 415 are fixedly connected to the support sleeve 413, and the other ends of the second springs 415 are fixedly connected to stop blocks 414. The sliding groove 412, the support sleeve 413, and the stop block 414 are connected to the cutting device 42;

[0039] The cutting device 42 includes a cutting knife 421, a resisting block 422, a sliding rod 423, and a second limiting groove 424. A cutting knife 421 is slidably connected in the sliding groove 412 and the support sleeve 413. A stop block 414 is fixedly connected to the outer wall of the cutting knife 421. A second limiting groove 424 is provided at the upper end of the cutting knife 421. The inner wall of the cutting knife 421 is slidably connected to a pair of sliding rods 423. One end of the sliding rod 423 passes through the second limiting groove 424 and is fixedly connected to the inner wall of the upper end of the sliding groove 412, and the other end of the sliding rod 423 is fixedly connected to a resisting block 422;

[0040] In the embodiment of the present utility model, after the device finishes injection molding, the left end mold base 1 of the injection mold is moved leftward to drive the sliding groove 412 of the limiting component 41 and the cutting knife 421 of the cutting device 42 to move leftward. When the rear end of the cutting knife 421 contacts an external blocking block, at this time, the left end mold base 1 of the injection mold continues to move. The cutting knife 421 is pressed and moves forward along the sliding groove 412 to cooperate with the resisting block 422 on the sliding rod 423 to cut off the sprue in the injection port 411. The support sleeve 413 supports the cutting knife 421. At the same time, the forward movement of the cutting knife 421 drives the second spring 415 to move forward and compress the stop block 414. When the cutting is completed, the left end mold base 1 of the injection mold drives the cutting knife 421 to move rightward. At this time, the stop block 414 is no longer pressed and pushes the cutting knife 421 to reset. By automatically cutting the sprues at multiple places, the subsequent cutting process is reduced, the working efficiency of the device is improved, and at the same time, the sprues of the device are cut to remove the redundant parts to make the product accuracy meet the standard.

[0041] An automatic discharging component 3 is installed on the left end mold base 1 of the injection mold. The discharging component 3 is connected to the limiting mold component 2;

[0042] The discharging component 3 includes a movable column 31, a limiting block 32, a first spring 33, a T-shaped chute 34, a supporting block 35 and a receiving groove 36. A plurality of T-shaped chutes 34 are formed in the left end of the left end mold base 1 of the injection mold. A movable column 31 is slidably connected in the T-shaped chute 34. One end of the first spring 33 is fixedly connected to the right wall of the left end of the T-shaped chute 34. A limiting block 32 is slidably connected to the left end of the T-shaped chute 34. The other end of the first spring 33 is fixedly connected to one end of the limiting block 32. The left end of the movable column 31 is fixedly connected to the limiting block 32. A supporting block 35 is fixedly connected to the right end of the left end mold base 1 of the injection mold. The limiting mold component 2 is connected to the receiving groove 36. The supporting block 35 is slidably connected in the receiving groove 36;

[0043] Preferably, a sponge outer sleeve is sleeved on the outer wall of the supporting block 35;

[0044] The sponge outer sleeve of the second mold cavity 25 can reduce the friction between the material and the second mold cavity 25 and avoid material damage;

[0045] In the embodiment of the present invention, when the device starts to discharge, the leftward movement of the left end mold base 1 of the injection mold drives the leftward movement of the movable column 31. When the movable column 31 contacts the external blocking block, the movable column 31 is pressed to move rightward along the T-shaped chute 34 to eject the material onto the supporting block 35. At the same time, the rightward movement of the movable column 31 drives the rightward movement of the limiting block 32 and compresses the first spring 33. When the discharging is completed, at this time, the rightward movement of the left end mold base 1 of the injection mold drives the supporting block 35 to slide into the receiving groove 36. At the same time, the movable column 31 and the first spring 33 are no longer pressed. At this time, the first spring 33 pushes the limiting block 32 and the movable column 31 to reset. By pushing the material onto the supporting block 35 and being supported, it is avoided that the material drops and the edges and corners of the material are knocked and damaged, resulting in material damage.

[0046] A limiting mold component 2 for preventing material deviation is installed on the left end mold base 1 of the injection mold. The limiting mold component 2 is connected to the discharging component 3 and the cutting component 4;

[0047] The limiting mold component 2 includes a right end mold base 21 of the injection mold, a first mold cavity 22, a first limiting groove 23, a limiting column 24 and a second mold cavity 25. A plurality of limiting columns 24 are fixedly connected to the right end of the left end mold base 1 of the injection mold near the four corners. A second mold cavity 25 is formed in the right end of the left end mold base 1 of the injection mold. The right end mold base 21 of the injection mold is in contact connection with the right end of the left end mold base 1 of the injection mold. A first limiting groove 23 is formed in the left end of the right end mold base 21 of the injection mold near the four corners. The limiting column 24 is slidably connected in the first limiting groove 23. A first mold cavity 22 is formed in the left end of the right end mold base 21 of the injection mold. A plurality of receiving grooves 36 are formed in the left end of the right end mold base 21 of the injection mold. Injection ports 411 are formed in the upper side and the rear side of the left end of the right end mold base 21 of the injection mold;

[0048] In the embodiment of the present utility model, when the device starts to be assembled, the rightward movement of the left mold base 1 of the injection mold drives the limit post 24 of the limit mold assembly 2 to insert into the first limit groove 23 opened on the right mold base 21 of the injection mold. At this time, the second mold groove 25 and the first mold groove 22 are spliced to form a complete mold groove. By limiting the mold, it is avoided that the mold is misaligned during splicing, resulting in material leakage and failure during injection molding.

[0049] The above embodiments are only used to illustrate the technical solutions of the present utility model, rather than limiting it; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements 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 the present utility model.

Claims

1. A protective plate injection mold that is easy to demould, comprising a mold base (1) at the left end of the injection mold, characterized in that: A cutting assembly (4) for cutting the water outlet is installed on the left end mold base (1) of the injection mold; The cutting component (4) comprises a limiting component (41) and a cutting device (42); the mold base (1) at the left end of the injection mold is connected to the limiting component (41), and the limiting component (41) is connected to the cutting device (42); An automatic material discharge assembly (3) is installed on the left end mold base (1) of the injection mold; A limiting mold assembly (2) for preventing material deviation is installed on the mold base (1) at the left end of the injection mold, and the limiting mold assembly (2) is connected to the discharge assembly (3) and the limiting assembly (41).

2. The protective plate injection mold for easy demoulding according to claim 1 is characterized in that: The limiting component (41) comprises an injection port (411), a slide groove (412), a support sleeve (413), a stopper (414) and a second spring (415); the injection port (411) is provided at the upper end and the rear end of the mold base (1) at the left end of the injection mold; the slide groove (412) is provided at the upper end and the rear end of the mold base (1) at the left end of the injection mold; the support sleeve (413) is fixedly connected to the inner wall of the right end of the slide groove (412); the support sleeve (413) is fixedly connected to one end of a pair of second springs (415); and the other end of the second springs (415) is fixedly connected to the stopper (414).

3. The protective plate injection mold for easy demoulding according to claim 2, characterized in that: The injection port (411) is connected to the limiting mold assembly (2).

4. The protective plate injection mold for easy demoulding according to claim 3 is characterized in that: The slide groove (412), the supporting sleeve (413) and the stopper (414) are connected to the cutting device (42).

5. The protective plate injection mold for easy demoulding according to claim 4, characterized in that: The cutting device (42) comprises a cutting knife (421), a stopper (422), a sliding rod (423) and a second limiting groove (424); the cutting knife (421) is slidably connected in the sliding groove (412) and the supporting sleeve (413); the outer wall of the cutting knife (421) is fixedly connected with a stopper (414); the upper end of the cutting knife (421) is provided with a second limiting groove (424); the inner wall of the cutting knife (421) is slidably connected with a pair of sliding rods (423); one end of the sliding rod (423) passes through the second limiting groove (424) and is fixedly connected to the inner wall of the upper end of the sliding groove (412); the other end of the sliding rod (423) is fixedly connected with the stopper (422).

6. The protective plate injection mold for easy demoulding according to claim 5, characterized in that: The discharging assembly (3) comprises a movable column (31), a limit block (32), a spring (33), a T-slide (34), a support block (35) and a receiving groove (36). A plurality of T-slides (34) are provided at the left end of the mold base (1) at the left end of the injection mold. The movable column (31) is slidably connected in the T-slide (34). The right wall of the left end of the T-slide (34) is fixedly connected to one end of the spring (33). The left end of the T-slide (34) is slidably connected to the limit block (32). The other end of the spring (33) is fixedly connected to one end of the limit block (32). The left end of the movable column (31) is fixedly connected to the limit block (32). The right end of the mold base (1) at the left end of the injection mold is fixedly connected to the support block (35). The limit mold assembly (2) is connected to the receiving groove (36), and the support block (35) is slidably connected in the receiving groove (36).

7. The protective plate injection mold for easy demoulding according to claim 6, characterized in that: The outer wall of the support block (35) is covered with a sponge jacket.

8. The protective plate injection mold for easy demoulding according to claim 7, characterized in that: The limiting mold assembly (2) comprises a mold base (21) at the right end of the injection mold, a mold groove (22), a limiting groove (23), a limiting column (24) and a mold groove (25); a plurality of limiting columns (24) are fixedly connected near four corners of the right end of the mold base (1) at the left end of the injection mold; a mold groove (25) is provided at the right end of the mold base (1) at the left end of the injection mold; and a mold base (21) at the right end of the mold base (1) at the left end of the injection mold is in contact with the mold base (22) at the right end of the injection mold. (21), a limiting groove (23) is provided at the left end of the mold base (21) at the right end of the injection mold near the four corners, a limiting column (24) is slidably connected in the limiting groove (23), a mold groove (22) is provided at the left end of the mold base (21) at the right end of the injection mold, a plurality of storage grooves (36) are provided at the left end of the mold base (21) at the right end of the injection mold, and an injection port (411) is provided at the upper side and the rear side of the left end of the mold base (21) at the right end of the injection mold.

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