Quick release structure of positioning pin for thermal forming processing

Abstract

The utility model is applicable to the technical field of mold manufacturing, and provides a positioning pin quick release structure for thermal forming processing, which comprises a lower mold, a first moving groove is arranged in the lower mold, an elliptical block is arranged in the first moving groove, a locking component is slidably arranged in the first moving groove, and an inserting groove is arranged at the top of the lower mold and extends into the elliptical block in a penetrating manner. A positioning pin assembly is inserted into the slot; the locking assembly comprises an elliptical ring block, an elastic assembly is connected between the inner side wall of the elliptical ring block and the elliptical block, and an insertion rod is fixedly connected to the inner side wall of the elliptical ring block; when a first positioning pin body needs to be replaced, an operator presses a moving column from the outer side of a lower mold to the inner side through fingers, a spring is contracted under pressure from the outer side, and an elliptical ring block drives an inserting rod to contract into a third moving groove from a first inserting hole so as to release locking of the first positioning pin body; an operator pulls out the first positioning pin body from the inserting groove, and then a new first positioning pin body can be inserted into the inserting groove.

Description

TECHNICAL FIELD

[0001] The utility model belongs to mould manufacturing technical field especially relates to a positioning pin quick detach structure for thermoforming processing. BACKGROUND

[0002] Thermoforming is a kind of special plastic processing method for processing thermoplastic plastic sheet into various products. When thermoforming mold is used to manufacture products, some products have positioning structure design, and the positioning structure close to the product needs to be installed on the positioning pin of the thermoforming mold to complete the design requirements of the product.

[0003] The utility model discloses a mould positioning pin fixing structure and thermoforming mold, including fourth lower mould insert, third positioning pin and positioning pin fixing piece, the fourth lower mould insert is set up with the positioning pin installation groove of the positioning structure of the product needing production on, the third positioning pin is inserted with the positioning pin installation groove and is inserted with the cooperation limiting, the part of third positioning pin protruding fourth lower mould insert is set up with the positioning structure of the product needing production, the outside of the insertion part of third positioning pin is provided with the clamping groove, positioning pin fixing piece is inserted with the cooperation limiting with clamping groove, and positioning pin fixing piece is locked with fourth lower mould insert and is set up.

[0004] However, the above-mentioned utility model still has some shortcomings:

[0005] In the process of using the above-mentioned utility model, the positioning pin side lock screw is screwed into the fourth lower mould insert, and the positioning pin side lock screw is inserted into the gap on the side of the third positioning pin, so that the scattered positioning pins are fixed. However, every time the third positioning pin is replaced, the positioning pin side lock screw needs to be screwed out first, and then the third positioning pin can be taken out, which is troublesome. UTILITY MODEL CONTENTS

[0006] The utility model provides a positioning pin quick detach structure for thermoforming processing, which aims to solve the problems mentioned in the background technology.

[0007] The utility model discloses a kind of positioning pin quick-release structures for thermoforming processing, including lower mould, mobile groove one is opened in the lower mould, oval block is arranged in mobile groove one, and locking assembly is slidably arranged in mobile groove one, and the top of the lower mould is opened with insertion slot and extends to the oval block, and positioning pin assembly is inserted in insertion slot;The locking assembly includes oval ring block, the oval ring block is enclosed inside the oval block, and the inner side wall of the oval ring block and the oval block are connected with elastic component, the inner side wall of the oval ring block is fixedly connected with insertion rod, the insertion rod and the elastic component are oppositely arranged, and the insertion rod is inserted into positioning pin assembly under the elastic force of the elastic component to complete locking.

[0008] Preferably, the elastic component includes a telescopic rod, the thick rod end of the telescopic rod is fixedly connected to the side wall of the oval block, and the thin rod end of the telescopic rod is fixedly connected to the inner wall of the oval ring block, and a spring is sleeved on the side wall of the telescopic rod.

[0009] Preferably, a mobile groove two is opened on the outer side wall of the lower mould, the mobile groove two and the mobile groove one are communicated, a moving column is fixedly connected to the outer side wall of the oval ring block close to the spring, and the moving column is arranged in the mobile groove two.

[0010] Preferably, a mobile groove three is opened in the oval block, the two ends of the mobile groove three are respectively communicated with the mobile groove one and the insertion slot, the insertion rod is arranged in the mobile groove three, and the insertion rod can be slidably inserted into the insertion slot to lock the positioning pin assembly.

[0011] Preferably, the positioning pin assembly includes a positioning pin body one, the positioning pin body one is inserted into the insertion slot, a side wall of the positioning pin body one is provided with an insertion hole one, and the insertion rod can be slidably inserted into the insertion hole one to lock the positioning pin body one.

[0012] Preferably, the positioning pin assembly further includes a positioning pin body two and a positioning column, a threaded hole is opened at the central position of the bottom of the positioning pin body two, a threaded column is fixedly connected to the central position of the top of the positioning column, and the positioning pin body two and the positioning column are detachably connected by screwing the threaded column into the threaded hole.

[0013] Preferably, the positioning column is inserted into the insertion slot, a side wall of the positioning column is provided with an insertion hole two, and the insertion rod can be slidably inserted into the insertion hole two to lock the positioning pin body two.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] 1、When the positioning pin body one needs to be replaced, the operator presses the moving column from the outside of the lower mold to the inside by fingers, the spring is contracted under the pressure from the outside, the oval ring block drives the inserting rod to contract from the inserting hole one to the moving groove three to release the locking of the positioning pin body one, the operator takes out the positioning pin body one from the inserting groove, and then inserts the new positioning pin body one into the inserting groove, so the device is more convenient and fast.

[0016] 2、The positioning pin body two and the positioning column are detachably connected in the threaded hole through the threaded column, so that the operator can select the corresponding size of the positioning pin body two according to production needs, and the practicability of the device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a front view schematic diagram of the utility model;

[0018] Figure 2 It is a front view schematic diagram of the utility model;

[0019] Figure 3 It is an enlarged schematic diagram of A in the utility model; Figure 2

[0020] Figure 4 It is a top view schematic diagram of the utility model;

[0021] Figure 5 It is an enlarged schematic diagram of B in the utility model; Figure 4

[0022] Figure 6 It is a schematic diagram of the positioning pin assembly in the second embodiment of the utility model;

[0023] In the drawing:

[0024] 1, lower mold; 2, positioning pin assembly; 211, positioning pin body one; 212, inserting hole one; 221, positioning pin body two; 222, positioning column; 223, threaded hole; 224, inserting hole two; 225, threaded column; 3, locking assembly; 31, oval ring block; 32, inserting rod; 33, moving column; 34, elastic assembly; 341, telescopic rod; 342, spring; 4, moving groove one; 5, moving groove two; 6, inserting groove; 7, moving groove three; 8, oval block. DETAILED DESCRIPTION

[0025] The technical scheme of the utility model will be described clearly and completely in combination with the drawings, obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments.

[0026] ​​The components of the embodiments of the present application generally described and shown in the drawings herein can be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application, but merely represents selected embodiments of the application.

[0027] All other embodiments obtained by a person of ordinary skill in the art without creative labor based on the embodiments of the present application fall within the scope of protection of the present application.

[0028] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements. For a person of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0030] First embodiment

[0031] Please refer to Figures 1-5 The utility model provides a kind of technical scheme: a positioning pin quick release structure for thermoforming processing, including lower mould 1, mobile groove one 4 is set in lower mould 1, oval block 8 is provided in mobile groove one 4, and locking assembly 3 is slidably arranged in mobile groove one 4, and insert slot 6 is set in the top of lower mould 1 and extends to oval block 8 inside, and positioning pin assembly 2 is inserted in insert slot 6.

[0032] Locking assembly 3 includes oval ring block 31, oval ring block 31 is enclosed inside oval block 8, and elastic component 34 is connected between the inner side wall of oval ring block 31 and oval block 8, and insert rod 32 is fixedly connected on the inner side wall of oval ring block 31, insert rod 32 and elastic component 34 are oppositely arranged, and insert rod 32 is inserted into positioning pin assembly 2 under the action of the elastic force of elastic component 34 to complete locking.

[0033] Specific is, the lower mold 1 is formed by bonding two lower plate molds together.

[0034] The moving groove one 4 is an oval groove, and the oval ring block 31 can slide left and right in the moving groove one 4. When the oval ring block 31 slides to the left, the elastic assembly 34 is compressed, and the inserting rod 32 is driven to move to the left to disengage from the positioning pin assembly 2, so that the positioning pin assembly 2 is conveniently taken out of the inserting groove 6 for replacement.

[0035] Further, the elastic assembly 34 includes a telescopic rod 341, the thick rod end of the telescopic rod 341 is fixedly connected to the side wall of the oval block 8, the thin rod end of the telescopic rod 341 is fixedly connected to the inner wall of the oval ring block 31, and the side wall of the telescopic rod 341 is sleeved with a spring 342.

[0036] Specifically, when the oval ring block 31 drives the inserting rod 32 to move to the left, the spring 342 is compressed at the same time, and the telescopic rod 341 is synchronously contracted. When the spring 342 loses pressure, the oval ring block 31 drives the inserting rod 32 to return to the original position through the elastic force of the spring 342.

[0037] Further, the outer side wall of the lower mold 1 is provided with a moving groove two 5, the moving groove two 5 is communicated with the moving groove one 4, the outer side wall of the oval ring block 31 close to the spring 342 is fixedly connected with a moving column 33, and the moving column 33 is arranged in the moving groove two 5.

[0038] Specifically, the operator can drive the oval ring block 31 to move to the left by pressing the moving column 33 from the outer side of the lower mold 1 with fingers, so that the positioning pin assembly 2 is unlocked, which is more convenient and fast.

[0039] Further, the oval block 8 is provided with a moving groove three 7, the two ends of the moving groove three 7 are respectively communicated with the moving groove one 4 and the inserting groove 6, and the inserting rod 32 is arranged in the moving groove three 7. The inserting rod 32 can slide in the moving groove three 7 and insert into the inserting groove 6 to lock the positioning pin assembly 2.

[0040] Further, the positioning pin assembly 2 includes a positioning pin body one 211, the positioning pin body one 211 is inserted into the inserting groove 6, and the side wall of the positioning pin body one 211 is provided with an inserting hole one 212. The inserting rod 32 can be slidably inserted into the inserting hole one 212 to lock the positioning pin body one 211.

[0041] Working principle: when the positioning pin body 211 needs to be replaced, the operator presses the moving column 33 inward from the outside of the lower mold 1 by fingers, at this time the spring 342 is contracted under the pressure from the outside, the telescopic rod 341 is also contracted, the oval ring block 31 drives the inserting rod 32 to move to the left, and is contracted from the insertion hole 212 to the moving groove three 7 to release the locking of the positioning pin body 211, so that the operator can pull out the positioning pin body 211 from the insertion slot 6, and can insert a new positioning pin body 211 into the insertion slot 6 (the position of the insertion hole 212 needs to be towards the reverse position of the moving groove two 5).

[0042] Finally, the pressing of the moving column 33 is released, the spring 342 loses the pressure from the outside, and under the action of its own elasticity, drives the oval ring block 31 and the inserting rod 32 to move to the right, so that the inserting rod 32 is inserted into the insertion hole 212 from the moving groove three 7 again, and the replacement between the positioning pin bodies 211 is completed.

[0043] Second embodiment

[0044] Please refer to Figure 6 The difference from the first embodiment is that the positioning pin body 211 is replaced by the detachable positioning pin body two 221 and the positioning column 222.

[0045] Further, the positioning pin assembly 2 further comprises the positioning pin body two 221 and the positioning column 222, a threaded hole 223 is formed at the central position of the bottom of the positioning pin body two 221, a threaded column 225 is fixedly connected to the top of the positioning column 222, and the positioning pin body two 221 and the positioning column 222 are detachably connected by screwing the threaded column 225 into the threaded hole 223.

[0046] Further, the positioning column 222 is inserted into the insertion slot 6, and an insertion hole two 224 is formed in the side wall of the positioning column 222, and the inserting rod 32 is slidably inserted into the insertion hole two 224 to lock the positioning pin body two 221.

[0047] Specifically, the operator can select the corresponding size of the positioning pin body two 221 according to the production demand, and screw it to the top of the positioning column 222, so as to improve the practicability of the mold, and it should be noted that the top of the positioning column 222 is flush with the top of the lower mold 1.

[0048] The step of inserting the positioning column 222 into the insertion slot 6 is consistent with the first embodiment, and the inserting rod 32 is inserted into the insertion hole two 224 on the positioning column 222 by pressing the moving column 33, so as to lock the positioning column 222.

[0049] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A positioning pin quick release structure for hot forming processing, characterized by: Including lower mould (1), the mobile groove one (4) is opened in the lower mould (1), the oval block (8) is arranged in the mobile groove one (4), and the locking assembly (3) is slidably arranged in the mobile groove one (4), the insertion slot (6) is opened from the top of the lower mould (1) and extends to the oval block (8) inside, and the positioning pin assembly (2) is inserted in the insertion slot (6). The locking assembly (3) includes an oval ring block (31), the oval ring block (31) is surrounded inside the oval block (8), and the inner side wall of the oval ring block (31) and the oval block (8) are connected with the elastic assembly (34), the inner side wall of the oval ring block (31) is fixedly connected with the insertion rod (32), the insertion rod (32) and the elastic assembly (34) are oppositely arranged, and the insertion rod (32) is inserted into the positioning pin assembly (2) under the elastic force of the elastic assembly (34) to complete locking.

2. The quick release structure of a positioning pin for hot forming process according to claim 1, characterized in that: The elastic assembly (34) includes a telescopic rod (341), the thick rod end of the telescopic rod (341) is fixedly connected to the side wall of the oval block (8), and the thin rod end of the telescopic rod (341) and the inner wall of the oval ring block (31) are fixedly connected, and the side wall of the telescopic rod (341) is sleeved with a spring (342).

3. The quick release structure of a positioning pin for hot forming process according to claim 2, characterized in that: The outer side wall of the lower mould (1) is provided with a mobile groove two (5), the mobile groove two (5) is communicated with the mobile groove one (4), the outer side wall of the oval ring block (31) is fixedly connected with a moving column (33) near the spring (342), and the moving column (33) is arranged in the mobile groove two (5).

4. The quick release structure of a positioning pin for hot forming process according to claim 1, characterized in that: The oval block (8) is provided with a mobile groove three (7), the two ends of the mobile groove three (7) are respectively communicated with the mobile groove one (4) and the insertion slot (6), the insertion rod (32) is arranged in the mobile groove three (7), and the insertion rod (32) can be slidably inserted into the insertion slot (6) to lock the positioning pin assembly (2).

5. The quick release structure of a positioning pin for hot forming process according to claim 4, characterized in that: The positioning pin assembly (2) includes a positioning pin body one (211), the positioning pin body one (211) is inserted into the insertion slot (6), and the side wall of the positioning pin body one (211) is provided with an insertion hole one (212), and the insertion rod (32) can be slidably inserted into the insertion hole one (212) to lock the positioning pin body one (211).

6. The quick release structure of a positioning pin for hot forming process according to claim 4, characterized in that: The positioning pin assembly (2) further includes a positioning pin body two (221) and a positioning column (222), a threaded hole (223) is formed at the central position of the bottom of the positioning pin body two (221), a threaded column (225) is fixedly connected to the central position of the top of the positioning column (222), and the positioning pin body two (221) and the positioning column (222) are detachably connected by screwing the threaded column (225) into the threaded hole (223).

7. The quick release structure of a positioning pin for hot forming process according to claim 6, characterized in that: The positioning column (222) is inserted into the slot (6), and a second insertion hole (224) is formed in the side wall of the positioning column (222), and the insertion rod (32) is slidably inserted into the second insertion hole (224) to lock the second positioning pin body (221).

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