Pouring gate residue side cutting limiting structure of injection molding part

Abstract

The utility model provides an injection molding part sprue residue side cutting limiting structure. The injection molding part sprue residue side cutting limiting structure comprises a limiting seat assembly and a pressing mechanism which are symmetrically and fixedly arranged on a side cutting device, the limiting seat assembly comprises a limiting seat, a first limiting boss is arranged at the position, corresponding to a first installation groove of the injection molding part assembly, of the upper end face of the limiting seat, and a second limiting boss is arranged at the position, corresponding to a second installation groove of the injection molding part assembly, of the upper end face of the limiting seat. A third limiting boss used for limiting the inner top wall of the injection molding part assembly is arranged on the upper end face of the second limiting boss. The pressing mechanism comprises a rotary pressing air cylinder, the lower end of a pressing arm of the rotary pressing air cylinder is connected with a pressing block, and the pressing block is used for pressing the upper end face of the injection molding part assembly. The utility model solves the problem that the limiting structure of the existing sprue residue side cutting device is unstable.

Description

Technical Field

[0001] The utility model relates to the field of injection molding tooling, in particular to an injection molded part gate residual undercut limiting structure. Background Art

[0002] The inside of the car door is usually equipped with a window switch panel, such as Figure 1 The window switch panel injection molding product assembly shown is produced by injection molding. The two-cavity injection molding parts in the mold are injection molded by four gates. The gate residual material blocks are formed by solidifying the plastic at the injection mold feed port or runner. The two cavities share a common injection port and a common material handle after molding. All gate residual material blocks need to be completely removed to ensure the assembly performance of the product and separate the two-cavity switch panel brackets. The traditional method is to manually remove the gate residual material blocks on the switch panel bracket, but this method has low production efficiency and manual removal is difficult to improve the overall quality of the product. Therefore, the following methods have appeared on the market. Figure 2 The device for side-cutting residual gates of injection molded parts is shown. It features an outer cutting mechanism and an inner cutting mechanism with cutting heads on either side of the side-cutting mechanism, respectively. A limit plate is provided on the upper fixed plate to prevent the product from moving. However, the existing limit plate has a simple structure, with only a single boss for retaining the inner sidewall of the product. In actual use, due to the high force of the side-cutting, this can still cause product deviation, resulting in unstable positioning and affecting product processing quality. Therefore, a new limit structure for side-cutting residual gates of injection molded parts is needed. Utility Model Content

[0003] The utility model aims to provide a limiting structure for residual undercut of a gate of an injection molded part, so as to solve the problem that the limiting structure of the existing residual undercut device of the gate is unstable.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] An injection molded part gate residual side cutting limiting structure includes a limiting seat assembly and a pressing mechanism symmetrically fixedly arranged on a side cutting device;

[0006] The limit seat assembly includes a limit seat, wherein the upper end surface of the limit seat is provided with a first limit boss at a position corresponding to the first mounting groove of the injection molding assembly, the upper end surface of the limit seat is provided with a second limit boss at a position corresponding to the second mounting groove of the injection molding assembly, and the upper end surface of the second limit boss is provided with a third limit boss for limiting the inner top wall of the injection molding assembly;

[0007] The pressing mechanism comprises a rotary pressing cylinder, the lower end of the pressing arm of the rotary pressing cylinder is connected to a pressing block, and the pressing block is used to press the upper end surface of the injection molded part assembly.

[0008] Preferably, in combination with the above solution, the clamping mechanism is respectively arranged on the left and right sides of the limit seat assembly.

[0009] Preferably, in combination with the above solution, when the pressing arm of the rotary downward pressing cylinder is rotated into position, the pressing block is located directly above the third limiting boss.

[0010] Preferably, in combination with the above solution, the limit seat assembly is fixedly connected to the upper fixed plate of the episiotomy device.

[0011] Preferably, in combination with the above solution, the limit seat is fixedly connected to the upper end surface of the upper fixing plate.

[0012] Preferably, in combination with the above solution, the clamping mechanism is fixedly connected to the lower fixing plate of the episiotomy device.

[0013] Preferably, in combination with the above solution, the pressing mechanism further includes a connecting seat, the lower end of the connecting seat is fixedly connected to the lower fixing plate, and the upper end of the connecting seat is fixedly connected to the rotary downward pressing cylinder.

[0014] Preferably, in combination with the above solution, the material of the limit seat assembly is plastic.

[0015] Preferably, in combination with the above solution, the material of the pressing block is polyurethane rubber.

[0016] The beneficial effects of the utility model are as follows: the utility model can cooperate well with the side cutting device to limit and fix the injection molded part assembly by setting the limit seat assembly and the clamping mechanism, and can effectively prevent the injection molded part assembly from moving, loosening, etc. when the gate has residual side cutting, thereby ensuring the cutting quality and product processing quality.

[0017] The present invention will be described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural diagram of the injection molded parts assembly in this utility model.

[0019] Figure 2 This is a diagram of the matching structure of an injection molded part gate residual undercut limiting structure and an injection molded part assembly according to the utility model.

[0020] Figure 3 This is a structural diagram of the cooperation of an injection molded part gate residual undercut limiting structure and an injection molded part assembly in another direction according to the utility model.

[0021] Figure 4 This is a structural diagram of the limit seat assembly in the utility model.

[0022] Figure 5 This is a structural diagram of the compacting mechanism in the utility model.

[0023] Among them, 1. Upper fixed plate; 2. Lower fixed plate; 3. Outer cutting mechanism; 4. Inner cutting mechanism; 5. Limit seat assembly; 6. Clamping mechanism; 10. Injection molded part assembly; 1001. Residual material block of the external gate; 1002. Residual material block of the internal gate; 1004. First mounting groove; 1005. Second mounting groove; 501. Limit seat; 502. First limiting boss; 503. Second limiting boss; 504. Third limiting boss; 601. Connecting seat; 602. Rotating downward pressure cylinder; 603. Pressing arm; 604. Clamping block. DETAILED DESCRIPTION

[0024] like Figure 2 and Figure 3 The illustrated embodiment of a gate residual side cutting limiting structure for an injection molded part comprises a limiting seat assembly 5 symmetrically fixedly arranged on a side cutting device and a pressing mechanism 6;

[0025] The limit seat assembly 5 includes a limit seat 501. A first limit boss 502 is provided on the upper end surface of the limit seat 501 at a position corresponding to the first mounting groove 1004 of the injection molded component assembly 10. A second limit boss 503 is provided on the upper end surface of the limit seat 501 at a position corresponding to the second mounting groove 1005 of the injection molded component assembly 10. The upper end surface of the second limit boss 503 is provided with a third limit boss 504 for limiting the inner top wall of the injection molded component assembly 10.

[0026] The pressing mechanism 6 includes a rotary pressing cylinder 602 , and the lower end of the pressing arm 603 of the rotary pressing cylinder 602 is connected to a pressing block 604 . The pressing block 604 is used to press the upper end surface of the injection molded part assembly 10 .

[0027] In order to better arrange the clamping mechanism 6 and prevent interference with the inner cutting mechanism 4, the clamping mechanism 6 is respectively arranged on the left and right sides of the limit seat assembly 5.

[0028] In order to better cooperate with the third limiting boss 504 to clamp and limit the injection molded part assembly 10, when the pressing arm 603 of the rotary pressing cylinder 602 rotates into place, the pressing block 604 is located directly above the third limiting boss 504.

[0029] In order to facilitate the installation and fixation of the limit seat assembly 5, the limit seat assembly 5 is fixedly connected to the upper fixing plate 1 of the episiotomy device.

[0030] In order to facilitate the assembly of the limiting seat 501 , the limiting seat 501 is fixedly connected to the upper end surface of the upper fixing plate 1 .

[0031] In order to facilitate the installation and fixation of the pressing mechanism 6, the pressing mechanism 6 is fixedly connected to the lower fixing plate 2 of the episiotomy device.

[0032] In order to facilitate the assembly and fixation of the rotary downward pressing cylinder 602, the clamping mechanism 6 also includes a connecting seat 601, the lower end of the connecting seat 601 is fixedly connected to the lower fixed plate 2, and the upper end of the connecting seat 601 is fixedly connected to the rotary downward pressing cylinder 602.

[0033] In order to prevent wear on the injection molded part assembly 10, the material of the limit seat assembly 5 is plastic.

[0034] In order to prevent wear on the injection molded part assembly 10 during compression, the compression block 604 is made of polyurethane hard rubber.

[0035] Principle of this utility model:

[0036] like Figure 1 As shown, the injection molded component assembly 10 in this embodiment includes left and right window switch panels. After injection molding, the two sets of window switch panels are connected by residual blocks 1001 from the outer gate and 1002 from the inner gate. These residual blocks have a large cross-section. The residual blocks must be removed from the base to separate the injection molded component assembly 10 into the finished window switch panels.

[0037] The device for cutting the residual side of the gate of an injection molded part in this embodiment includes an outer cutting mechanism 3 and an inner cutting mechanism 4. The outer cutting mechanism 3 is symmetrically provided with two groups. The outer cutting mechanism 3 is driven by a cylinder in the side cutting mechanism through a slide rail structure to push the two groups of outer cutting heads 301 to move closer to each other, so as to cut off the residual material blocks 1001 of the outer gate on opposite sides of the injection molded part assembly 10; the inner cutting mechanism 4 is driven by a cylinder in the side cutting mechanism through a slide rail structure to push the two groups of inner cutting heads 401 to move away from each other, so as to cut off the residual material blocks 1002 of the inner gate on opposite sides of the injection molded part assembly 10;

[0038] When it is necessary to cut off the residual material block, the injection molding assembly 10 is first placed on the limit seat assembly 5 for limiting, and the pressing mechanism 6 is started to rotate and press down to press the injection molding assembly 10 to ensure the consistency of the height of the cut surface of the product. After the downward pressing signal of the rotating downward pressing cylinder 602 is output, the outer cutting mechanism 3 and the inner cutting mechanism 4 cut off the residual material block under the drive of the cylinder. After the cutting is completed, the outer cutting mechanism 3 and the inner cutting mechanism 4 are driven by the cylinder to retreat the cutter head, and the pressing mechanism 6 is rotated and released to remove the product. This structure can be applied not only to the side cutting device in this embodiment, but also to side cutting devices of other structures to limit the side cutting of products.

[0039] In the description of the present invention, it should be understood that terms such as "upper", "lower", "front", "back", "left", "right", "bottom", "inside", "outside", "one end", "one side", "two ends", "both sides", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0040] The above is an exemplary description of the present invention in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the present invention, or they are directly applied to other occasions, they all fall within the scope of protection of the present invention.

Claims

1. A residual undercut limiting structure for a gate of an injection molded part, characterized in that: It comprises a limit seat assembly (5) and a pressing mechanism (6) symmetrically fixedly arranged on the side cutting device; The limiting seat assembly (5) includes a limiting seat (501), wherein the upper end surface of the limiting seat (501) is provided with a first limiting boss (502) at a position corresponding to the first mounting groove (1004) of the injection molding assembly (10), and the upper end surface of the limiting seat (501) is provided with a second limiting boss (503) at a position corresponding to the second mounting groove (1005) of the injection molding assembly (10), and the upper end surface of the second limiting boss (503) is provided with a third limiting boss (504) for limiting the inner top wall of the injection molding assembly (10); The pressing mechanism (6) includes a rotary pressing cylinder (602), the lower end of the pressing arm (603) of the rotary pressing cylinder (602) is connected to a pressing block (604), and the pressing block (604) is used to press the upper end surface of the injection molded part assembly (10).

2. The injection molded part gate residual undercut limiting structure according to claim 1, characterized in that: The pressing mechanism (6) is respectively arranged on the left and right sides of the limiting seat assembly (5).

3. The injection molded part gate residual undercut limiting structure according to claim 1, characterized in that: When the pressing arm (603) of the rotary downward pressing cylinder (602) is rotated to the right position, the pressing block (604) is located directly above the third limiting boss (504).

4. The injection molded part gate residual undercut limiting structure according to claim 1, wherein: The limit seat assembly (5) is fixedly connected to the upper fixed plate (1) of the episiotomy device.

5. The injection molded part gate residual undercut limiting structure according to claim 4, characterized in that: The limiting seat (501) is fixedly connected to the upper end surface of the upper fixing plate (1).

6. The injection molded part gate residual undercut limiting structure according to claim 1, wherein: The pressing mechanism (6) is fixedly connected to the lower fixing plate (2) of the episiotomy device.

7. The injection molded part gate residual undercut limiting structure according to claim 6, characterized in that: The pressing mechanism (6) further comprises a connecting seat (601), the lower end of the connecting seat (601) is fixedly connected to the lower fixed plate (2), and the upper end of the connecting seat (601) is fixedly connected to the rotating downward pressing cylinder (602).

8. The injection molded part gate residual undercut limiting structure according to claim 1, wherein: The material of the limiting seat assembly (5) is plastic.

9. The injection molded part gate residual undercut limiting structure according to claim 1, wherein: The material of the pressing block (604) is polyurethane rubber.

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