Large-angle core pulling structure

Abstract

The utility model relates to the technical field of injection mold equipment, in particular to a large-angle core pulling structure which comprises a support, an inclined core pulling assembly and a driving assembly. The inclined core-pulling assembly comprises an inclined core-pulling block and an inclined core-pulling column; one end of the inclined core pulling block is matched with the injection molding part, and the inclined core pulling block is connected with the inclined core pulling column; the inclined core pulling column is obliquely arranged on the support and is connected with the support; the limiting assembly is arranged on the support and used for limiting the inclined core pulling column, so that the inclined core pulling column can only slide in the core pulling direction of the inclined core pulling block. The driving assembly is arranged on the support and used for driving the inclined core pulling column to slide. The occupied area of the mold can be reduced.

Description

Technical Field

[0001] The present application relates to the technical field of injection mold equipment, and in particular to a large-angle core pulling structure. Background Art

[0002] Moulds are various moulds and tools used in industrial production to obtain the required products by injection moulding, blow moulding, extrusion, die casting or forging, smelting, stamping and other methods.

[0003] In the process of injection molding, the molded parts often have undercuts in the demoulding direction of the movable mold, that is, the demoulding direction of one part of the injection molded part is inconsistent with the overall mold opening direction, resulting in the product being unable to be demoulded directly from one direction. It is necessary to set a core-pulling slider in the demoulding direction of this part to perform oblique core pulling for demoulding.

[0004] During the above-mentioned injection molding production, if the portion of the injection molded part that cannot be demolded directly has a too large angle with the overall mold opening direction of the injection molded part, since the oblique core pulling angle of the core pulling slider needs to be consistent with the demolding direction of this portion, the height of the mold needs to be made higher to satisfy the hydraulic cylinder driving the core pulling slider to perform oblique core pulling, resulting in an increase in the size of the mold and an increase in the floor space occupied. Utility Model Content

[0005] In order to reduce the footprint of the mold, the present application provides a large-angle core pulling structure.

[0006] The present application provides a large-angle core pulling structure, which adopts the following technical solutions:

[0007] A large-angle core-pulling structure is used for oblique core pulling of injection molded parts, comprising a support, an oblique core-pulling assembly, a limiting assembly and a driving assembly; the oblique core-pulling assembly comprises an oblique core-pulling block and an oblique core-pulling column; one end of the oblique core-pulling block is adapted to the injection molded part, and the oblique core-pulling block is connected to the oblique core-pulling column; the oblique core-pulling column is obliquely arranged on the support and connected to the support; the limiting assembly is arranged on the support and is used to limit the oblique core-pulling column so that the oblique core-pulling column can only be moved along the oblique core-pulling block. Slide in the core pulling direction; the driving assembly includes a moving block, an inclined guide column and a hydraulic cylinder; the moving block is slidably arranged on the support, and the sliding axis is horizontally arranged, and the inclined core pulling column is slidably connected to the moving block; a through hole is obliquely opened on the moving block; the inclined guide column is penetrated in the through hole and is slidably connected to the moving block; the hydraulic cylinder is vertically arranged on the top of the inclined guide column, and the fixed end of the hydraulic cylinder is connected to the support; the movable end of the hydraulic cylinder is connected to the inclined guide column.

[0008] By adopting the above technical scheme, when performing oblique core pulling, the hydraulic cylinder is used to drive the oblique guide column to move upward, thereby driving the moving block to move in the horizontal direction away from the injection molded part. During the movement, the moving block drives the oblique core pulling block and the oblique core pulling column to slide. Under the action of the limiting component, the oblique core pulling column moves away from the injection molded part in an oblique downward direction, driving the oblique core pulling block away from the injection molded part. After the oblique core pulling is completed, the oblique movement direction of the oblique core pulling block is decomposed into vertical and lateral movements, which can make the space layout more reasonable, thereby reducing the size of the mold as a whole and reducing the footprint of the mold.

[0009] Optionally, the limit assembly includes a limit seat and a limit block; the limit seat is fixedly arranged on the support; the limit block is arranged on the top of the limit seat; a limit groove is formed between the limit block and the limit seat, the limit groove is inclined, and the length direction of the limit groove is consistent with the core pulling direction of the inclined core pulling block; the inclined core pulling column is slidably arranged in the limit groove.

[0010] By adopting the above technical solution, the limiting groove formed by the limiting seat and the limiting block is used to limit the inclined core-pulling column, so that the inclined core-pulling column can only slide along the limiting groove.

[0011] Optionally, a fixing groove is provided on the moving block; a fixing assembly is provided on the support, and the fixing assembly includes a fixing seat and a fixing stud; the fixing seat is fixedly provided on the support; the fixing stud is connected to the fixing seat by threads; one end of the fixing stud is adapted to the fixing groove.

[0012] By adopting the above technical solution, during injection molding production, the fixed stud is set on the fixed seat through a thread, and one end of the fixed stud is located in the fixed groove, which tightly fixes the moving block so that the moving block cannot move, thereby keeping the oblique core pulling column and the oblique core pulling block in a fixed state, preventing the oblique core pulling block and the mold from moving relative to each other during the molding process of the injection molded part, thereby facilitating injection molding production.

[0013] Optionally, the limit block is detachably connected to the limit seat; a T-shaped slot is provided on the movable block; a T-shaped block is fixedly provided on the oblique core-pulling column, and the T-shaped block is slidably provided in the T-shaped slot; the oblique core-pulling block is detachably connected to the oblique core-pulling column.

[0014] By adopting the above technical solution, when the equipment has been used for too long, the operator removes the limit block from the limit seat, then slides the T-block out of the T-slot, removes the oblique core-pulling column and the oblique core-pulling block, and removes the oblique core-pulling block from the oblique core-pulling column, thereby facilitating the operator to replace the oblique core-pulling block when it is worn.

[0015] Optionally, a positioning portion is fixedly provided on the oblique core-pulling block; a positioning groove is provided on the oblique core-pulling column; and the positioning portion is matched with the positioning groove.

[0016] By adopting the above technical solution, when replacing the oblique core pulling block, the operator places the positioning part on the new oblique core pulling block in the positioning groove, and then connects the oblique core pulling column and the new oblique core pulling block to avoid misalignment of the new oblique core pulling block during installation.

[0017] Optionally, the fixed end of the hydraulic cylinder is fixedly connected to the limit block; the movable end of the hydraulic cylinder is fixedly provided with a connecting block, and the connecting block is detachably connected to the inclined guide column.

[0018] By adopting the above technical solution, the inclined guide column is detachably connected to the movable end of the hydraulic cylinder using a connecting block. When the inclined guide column is worn, the operator can first remove the limit block and then remove the inclined guide column, thereby facilitating the replacement of the inclined guide column.

[0019] Optionally, slide grooves are horizontally opened on both sides of the moving block; a fixed plate and a limit plate are arranged on the top of the support; the fixed plate is located between the support and the moving block; two limit plates are arranged, and correspond one to one with the slide grooves, and one end of the limit plate is located in the slide groove.

[0020] By adopting the above technical solution, the moving block is limited by the fixing plate and the limiting plate, so that the moving block can only slide in the horizontal direction.

[0021] Optionally, a first notch is formed on the side wall of the limiting plate close to the moving block, and the first notch is located in the center of the limiting plate; a second notch is formed on both side walls of the moving block close to the limiting plate, and the second notch is located in the center of the side wall of the moving block; parts of the limiting plate located on both sides of the first notch are matched with the second notch; parts of the moving block located on both sides of the second notch are matched with the first notch.

[0022] By adopting the above technical solution, when the moving block is worn out after being used for too long, the operator moves the moving block horizontally so that the parts of the moving block located on both sides of the second notch are opposite to the first notch, and the parts of the limiting plate located on both sides of the first notch are opposite to the second notch. Then the operator can move the moving block upward, disassemble the moving block and replace it; the operator can disassemble and replace the moving block without disassembling the fixed plate and the limiting plate.

[0023] Optionally, the fixing plate is detachably connected to the support; the limiting plate is detachably connected to the support.

[0024] By adopting the above technical solution, when the fixing plate and the limiting plate are used for too long, the operator can disassemble and replace the fixing plate and the limiting plate.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. By setting up a driving component, the inclined movement direction of the inclined core block is decomposed into vertical and lateral movement, which can make the space layout more reasonable, thereby reducing the size of the mold as a whole and reducing the footprint of the mold;

[0027] 2. By setting a fixing component, during injection molding production, a fixing stud is set on a fixing seat through a thread, and one end of the fixing stud is located in a fixing groove, which tightly fixes the moving block so that the moving block cannot move, thereby keeping the oblique core-pulling column and the oblique core-pulling block in a fixed state, preventing the oblique core-pulling block from moving relative to the mold during the molding process of the injection molded part, thereby facilitating injection molding production. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application;

[0029] Figure 2 This is a cross-sectional view of an embodiment of the present application for showing a positioning portion;

[0030] Figure 3 It is a cross-sectional view of an embodiment of the present application for showing a fixing component;

[0031] Figure 4 This is a schematic diagram of the structure of the second notch in the embodiment of the present application;

[0032] Figure 5 It is a schematic diagram of the structure of the driving component for displaying the embodiment of the present application.

[0033] Description of reference numerals:

[0034] 1. Injection molded parts;

[0035] 2. Support; 21. Fixed plate; 22. Limiting plate; 221. First notch;

[0036] 3. Oblique core pulling assembly; 31. Oblique core pulling block; 311. Positioning portion; 32. Oblique core pulling column; 321. T-block; 322. Positioning groove;

[0037] 4. Driving assembly; 41. Moving block; 411. Through hole; 412. T-slot; 413. Fixed slot; 414. Sliding slot; 415. Second missing slot; 42. Oblique guide column; 43. Hydraulic cylinder; 431. Connecting block;

[0038] 5. Limiting assembly; 51. Limiting seat; 511. Limiting groove; 52. Limiting block;

[0039] 6. Fixing assembly; 61. Fixing seat; 62. Fixing stud. DETAILED DESCRIPTION

[0040] The following is combined with Figure 1-4 This application is described in further detail.

[0041] The embodiment of the present application discloses a large-angle core pulling structure. Figure 1 and Figure 2 The large-angle core-pulling structure includes a support 2, on which a limiting assembly 5 is arranged, and the limiting assembly 5 includes a limiting seat 51 and a limiting block 52. The limiting seat 51 is fixedly arranged on the support 2. The limiting block 52 is located at the top of the limiting seat 51, and a threaded hole is formed on the limiting block 52, and a corresponding threaded groove is formed on the limiting seat 51. The limiting block 52 and the limiting seat 51 are detachably connected by bolts. An inclined limiting groove 511 is formed between the limiting block 52 and the limiting seat 51.

[0042] Reference Figure 1 and Figure 2 The oblique core-pulling assembly 3 includes an oblique core-pulling column 32 and an oblique core-pulling block 31. One end of the oblique core-pulling block 31 is adapted to the injection molded part 1, and the length of the limiting groove 511 is consistent with the core-pulling direction of the oblique core-pulling block 31. The oblique core-pulling column 32 is slidably arranged in the limiting groove 511, and the sliding direction of the oblique core-pulling column 32 is the same as the length direction of the limiting groove 511. A positioning portion 311 is fixedly arranged on the side wall of the oblique core-pulling block 31 close to the oblique core-pulling column 32. A positioning groove 322 is provided on the side wall of the oblique core-pulling column 32 close to the oblique core-pulling block 31, and the positioning portion 311 is adapted to the positioning groove 322, and the positioning portion 311 is located in the positioning groove 322. A threaded hole is provided on the oblique core-pulling column 32 along its own length direction, and a corresponding threaded groove is provided on the oblique core-pulling block 31, and the oblique core-pulling block 31 is detachably connected to the oblique core-pulling column 32 by bolts.

[0043] Reference Figure 3 and Figure 4 A fixing plate 21 is horizontally arranged on the support 2, a threaded hole is opened on the fixing plate 21, and a corresponding threaded groove is opened on the support 2. The fixing plate 21 and the support 2 are detachably connected by bolts.

[0044] Reference Figure 4 and Figure 5, a driving assembly 4 is arranged on the bracket, and the driving assembly 4 includes a moving block 41, an inclined guide column 42 and a hydraulic cylinder 43. The moving block 41 is slidably arranged on the top of the fixed plate 21 and slides in the horizontal direction. Slide grooves 414 are horizontally provided on both sides of the moving block 41. Limiting plates 22 are horizontally provided on both sides of the moving block 41, and the limiting plates 22 correspond to the slide grooves 414 one by one. One end of the limiting plate 22 is located in the slide groove 414, and a threaded hole is provided on the limiting plate 22, and a corresponding threaded groove is provided on the support 2. The limiting plate 22 and the support 2 are detachably connected by bolts. A T-slot 412 is provided on the moving block 41, and the T-slot 412 is inclined. A T-block 321 is fixedly provided at one end of the oblique core column 32 away from the oblique core block 31, and the T-block 321 is adapted to the T-slot 412, and the T-block 321 is slidably provided in the T-slot 412.

[0045] A through hole 411 is obliquely provided on the moving block 41. The oblique guide column 42 is inserted into the through hole 411 and is slidably connected to the moving block 41. The hydraulic cylinder 43 is vertically provided on the top of the oblique guide column 42, and the fixed end of the hydraulic cylinder 43 is fixedly connected to the limit block 52. A connecting block 431 is fixedly provided on the movable end of the hydraulic cylinder 43. A threaded hole is provided on the oblique guide column 42 along its length direction, and a corresponding threaded groove is provided on the connecting block 431. The oblique guide column 42 and the connecting block 431 are detachably connected by bolts.

[0046] A first notch 221 is formed on the side wall of the limiting plate 22 close to the moving block 41, and the first notch 221 is located in the center of the limiting plate 22. A second notch 415 is formed on both side walls of the moving block 41 close to the limiting plate 22, and the second notch 415 is located in the center of the side wall of the moving block 41. The portions of the limiting plate 22 located on both sides of the first notch 221 are matched with the second notch 415. The portions of the moving block 41 located on both sides of the second notch 415 are matched with the first notch 221.

[0047] Reference Figure 3 , two fixing grooves 413 are provided on the moving block 41. A fixing assembly 6 is provided on the support 2, and the fixing assembly 6 includes a fixing seat 61 and a fixing stud 62. The fixing seat 61 is fixed on the support 2 by bolts. Two fixing studs 62 are provided, and the fixing studs 62 correspond to the fixing grooves 413 one by one, and one end of the fixing stud 62 is adapted to the fixing groove 413. Two threaded holes are provided on the fixing seat 61, and the fixing studs 62 correspond to the threaded holes one by one. The fixing studs 62 are penetrated in the threaded holes and are connected to the fixing seat 61 by threads.

[0048] The implementation principle of a large-angle core pulling structure in the embodiment of the present application is:

[0049] During injection molding production, the fixing stud 62 is threadedly arranged in the threaded hole on the fixing seat 61, one end of the fixing stud 62 is located in the fixing groove 413, and the fixing stud 62 abuts against the moving block 41, so that the moving block 41 is in a fixed state and cannot move, thereby making the oblique core-pulling column 32 and the oblique core-pulling block 31 in a fixed state and cannot move, thereby preventing the oblique core-pulling block 31 from moving relative to the mold during the molding process of the injection molded part 1.

[0050] When the injection molded part 1 is formed and the oblique core pulling is performed, the operator removes the fixing stud 62 through the thread. At this time, the moving block 41 can move relatively. Then the operator controls the hydraulic cylinder 43 to contract, thereby driving the connecting block 431 and the oblique guide column 42 to move vertically upward. When the oblique guide column 42 moves upward, it drives the moving block 41 to move horizontally away from the injection molded part 1. During the movement, the moving block 41 drives the oblique core pulling block 31 and the oblique core pulling column 32 to slide in the limiting groove 511, away from the injection molded part 1 in an inclined downward direction, so that the oblique core pulling block 31 is away from the injection molded part 1, and the oblique core pulling is completed.

[0051] When the equipment has been used for too long and is worn, the operator can remove the limit block 52 from the limit seat 51 by bolts, and then slide the T-block 321 out of the T-slot 412, remove the oblique core column 32 and the oblique core block 31, and use bolts to disassemble the oblique core block 31 and the oblique core column 32, so that the oblique core block 31 can be replaced. When connecting the new oblique core block 31 with the oblique core column 32, the operator first places the positioning part 311 in the positioning groove 322, and then uses bolts to connect the oblique core column 32 and the new oblique core block 31.

[0052] After the limit block 52 is removed from the limit seat 51 , the hydraulic cylinder 43 , the connecting block 431 and the inclined guide column 42 are also removed. Then the operator can remove the inclined guide column 42 from the connecting block 431 by bolts, thereby replacing the worn inclined guide column 42 .

[0053] Then the operator moves the moving block 41 horizontally, so that the parts of the moving block 41 located on both sides of the second notch 415 are opposite to the first notch 221, and the parts of the limiting plate 22 located on both sides of the first notch 221 are opposite to the second notch 415, and then the operator can move the moving block 41 upward, disassemble the moving block 41, and replace it. It should be noted that the distance moved by the moving block 41 during the oblique core pulling process is less than the distance moved by the moving block 41 during the disassembly process of the moving block 41. In other words, during the oblique core pulling process, the moving block 41 will not move to the point where the parts of the moving block 41 located on both sides of the second notch 415 are opposite to the first notch 221, and the parts of the limiting plate 22 located on both sides of the first notch 221 are opposite to the second notch 415, that is, during the oblique core pulling process, the moving block 41 can only move horizontally.

[0054] Then the operator can remove and replace the fixing plate 21 and the limiting plate 22 by means of bolts.

[0055] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A large-angle core-pulling structure, used for performing oblique core-pulling on an injection molded part (1), characterized in that: The invention comprises a support (2), an oblique core-pulling assembly (3), a limiting assembly (5) and a driving assembly (4); the oblique core-pulling assembly (3) comprises an oblique core-pulling block (31) and an oblique core-pulling column (32); one end of the oblique core-pulling block (31) is adapted to the injection molded part (1), and the oblique core-pulling block (31) is connected to the oblique core-pulling column (32); the oblique core-pulling column (32) is arranged obliquely on the support (2) and is connected to the support (2); the limiting assembly (5) is arranged on the support (2) and is used to limit the oblique core-pulling column (32) so that the oblique core-pulling column (32) can only slide along the core-pulling direction of the oblique core-pulling block (31); the driving assembly (4) comprises a moving block (41), an inclined guide column (42) and a hydraulic cylinder (43); the moving block (41) is slidably arranged on the support (2), and the sliding axis is arranged horizontally, and the inclined core-pulling column (32) is slidably connected to the moving block (41); a through hole (411) is obliquely opened on the moving block (41); the inclined guide column (42) is inserted into the through hole (411) and is slidably connected to the moving block (41); the hydraulic cylinder (43) is vertically arranged on the top of the inclined guide column (42), and the fixed end of the hydraulic cylinder (43) is connected to the support (2); and the movable end of the hydraulic cylinder (43) is connected to the inclined guide column (42).

2. The large-angle core-pulling structure according to claim 1, characterized in that: The limiting assembly (5) comprises a limiting seat (51) and a limiting block (52); the limiting seat (51) is fixedly arranged on the support (2); the limiting block (52) is arranged on the top of the limiting seat (51); a limiting groove (511) is formed between the limiting block (52) and the limiting seat (51), the limiting groove (511) is arranged obliquely, and the length direction of the limiting groove (511) is consistent with the core pulling direction of the oblique core pulling block (31); the oblique core pulling column (32) is slidably arranged in the limiting groove (511).

3. The large-angle core-pulling structure according to claim 1, characterized in that: The moving block (41) is provided with a fixing groove (413); the support (2) is provided with a fixing assembly (6), the fixing assembly (6) comprising a fixing seat (61) and a fixing stud (62); the fixing seat (61) is fixedly arranged on the support (2); the fixing stud (62) is connected to the fixing seat (61) by means of a thread; one end of the fixing stud (62) is adapted to fit the fixing groove (413).

4. The large-angle core-pulling structure according to claim 2, characterized in that: The limit block (52) is detachably connected to the limit seat (51); a T-shaped slot (412) is provided on the moving block (41); a T-shaped block (321) is fixedly provided on the oblique core-pulling column (32), and the T-shaped block (321) is slidably provided in the T-shaped slot (412); the oblique core-pulling block (31) is detachably connected to the oblique core-pulling column (32).

5. The large-angle core-pulling structure according to claim 4 is characterized in that: A positioning portion (311) is fixedly provided on the oblique core-pulling block (31); a positioning groove (322) is provided on the oblique core-pulling column (32); and the positioning portion (311) is matched with the positioning groove (322).

6. The large-angle core-pulling structure according to claim 4, characterized in that: The fixed end of the hydraulic cylinder (43) is fixedly connected to the limit block (52); the movable end of the hydraulic cylinder (43) is fixedly provided with a connecting block (431), and the connecting block (431) is detachably connected to the inclined guide column (42).

7. The large-angle core-pulling structure according to claim 1, characterized in that: Slide grooves (414) are horizontally provided on both sides of the moving block (41); a fixing plate (21) and a limiting plate (22) are provided on the top of the support (2); the fixing plate (21) is located between the support (2) and the moving block (41); two limiting plates (22) are provided and correspond one to one with the slide grooves (414), and one end of the limiting plate (22) is located in the slide groove (414).

8. The large-angle core-pulling structure according to claim 7, characterized in that: A first notch (221) is formed on the side wall of the limiting plate (22) close to the moving block (41), and the first notch (221) is located in the center of the limiting plate (22); a second notch (415) is formed on both side walls of the moving block (41) close to the limiting plate (22), and the second notch (415) is located in the center of the side wall of the moving block (41); portions of the limiting plate (22) located on both sides of the first notch (221) are matched with the second notch (415); portions of the moving block (41) located on both sides of the second notch (415) are matched with the first notch (221).

9. The large-angle core-pulling structure according to claim 8, characterized in that: The fixing plate (21) is detachably connected to the support (2); and the limiting plate (22) is detachably connected to the support (2).

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