CN214391991U

CN214391991U - Convex hull forming mechanism

Info

Publication number: CN214391991U
Application number: CN202120363376.4U
Authority: CN
Inventors: 张涛; 徐思晗
Original assignee: Shanghai Rihan Precision Machinery Co ltd
Current assignee: Shanghai Rihan Precision Machinery Co ltd
Priority date: 2021-02-08
Filing date: 2021-02-08
Publication date: 2021-10-15
Anticipated expiration: 2031-02-08

Abstract

The utility model belongs to the technical field of the mould technique and specifically relates to a convex closure forming mechanism. The utility model provides a convex hull forming mechanism, includes backstop board, lower bolster, its characterized in that: the lower die is arranged below the stop plate, a first groove is formed in the middle of the stop plate, the upper portion of a forming punch is arranged on each of the left side and the right side in the first groove, the lower portion of the forming punch penetrates through the lower die and is rotatably connected with the lower die through a rotating shaft, a slotting tool is arranged on each of the left side and the right side between the forming punches, a stripper plate insert is arranged on the outer side of each of the upper portions of the forming punches, a lower die plate insert is arranged on the outer side of each of the middle portions of the forming punches, a spring is arranged on the lower portion between the forming punches, and first gaps are formed among the forming punches, the stripper plate inserts and the lower die plate insert. Compared with the prior art, the convex hull forming mode is improved, the strength of the punch is enhanced, the production cost is reduced, and the product quality and the production efficiency are improved.

Description

Convex hull forming mechanism

Technical Field

The utility model belongs to the technical field of the mould technique and specifically relates to a convex closure forming mechanism.

Background

In the stamping die, it is necessary to form a convex hull as shown in fig. 3-4. Currently, a conventional convex hull forming mechanism adopts a double-slider structure as shown in fig. 6. When the upper platform of the punch press moves downwards, the lower sliding plate I13 firstly contacts the existing slotting tool 11 and moves leftwards under the action of the downward force of the existing slotting tool 11. When the lower slide plate 13 stops moving to a certain distance, the lower module 17 is just attached to the product 2. The existing slotting tool 11 continues to move downwards, and the second lower sliding plate 15 starts to contact the existing slotting tool 11. At this point the punch 16 begins working to form the convex hull until the forming is complete. After the molding is finished, the upper table surface of the punch starts to move upwards. The second lower slide plate 15 is first retracted to the original position, and the punch head 16 is separated from the product 2. The first lower slide 13 is then retracted and the product 2 is released from the mould. And taking out the product, and finishing the whole process.

However, the conventional convex hull forming mechanism shown in fig. 6 is suitable for forming a product 2 with a large volume, and when the mechanism is used for forming a product with a small volume as shown in fig. 3-5, the product is not well positioned, so that the quality of the product is not stable. The punch 16 needs to be partially hollowed out, reducing the strength of the punch 16. The convex hull forming is completed by two processes, the production efficiency is low, the size of the die is large, and the problems of long step distance, low material utilization rate and the like can be caused when the die is used for continuous die production.

Disclosure of Invention

The utility model discloses an overcome prior art not enough, provide a convex closure forming mechanism, improve convex closure shaping mode, reinforcing drift intensity has reduced manufacturing cost, improves product quality and production efficiency.

For realizing above-mentioned purpose, design a convex hull forming mechanism, including backstop board, lower bolster, its characterized in that: the lower die is arranged below the stop plate, a first groove is formed in the middle of the stop plate, the upper portions of forming punches are arranged on the left side and the right side in the first groove respectively, the lower portions of the forming punches penetrate through the lower plate and are rotatably connected with the lower plate through rotating shafts, slotting tools are arranged on the upper portions of the forming punches on the left side and the right side, stripper plate inserts are arranged on the outer sides of the upper portions of the forming punches, lower die plate inserts are arranged on the outer sides of the middle portions of the forming punches, springs are arranged on the lower portions of the forming punches on the left side and the right side, and first gaps are formed among the forming punches, the stripper plate inserts and the lower die plate inserts.

The lower part of the slotting tool is of a round angle trapezoidal structure, and the upper part of the slotting tool is of a rectangular structure.

The slotting tool is contacted with or separated from the forming punch heads on the left side and the right side.

The lower end of the lower template is provided with a lower die cushion, and the lower end of the forming punch is abutted to the upper end of the lower die cushion.

The upper part of the lower template insert is positioned below the stripper plate insert, and the lower part of the lower template insert penetrates through the upper end of the lower template and is positioned in the lower template.

The lower part of the forming punch is positioned in the lower template, and a second gap is formed between the lower part of the forming punch and the inner wall of the lower template.

The left side of the spring is connected with the left side forming punch, and the right side of the spring is connected with the right side forming punch.

Compared with the prior art, the utility model, improve convex closure forming means, reinforcing drift intensity has reduced manufacturing cost, improves product quality and production efficiency.

Drawings

Fig. 1 is a schematic structural view of the utility model before the slotting tool contacts with the forming punch.

Fig. 2 is a schematic structural view of the slotting tool contacting with the forming punch according to the present invention.

Fig. 3 is a top view of the product of the present invention.

Fig. 4 is a cross-sectional view taken along the line a-a in fig. 3.

Fig. 5 is a side view of the product of the present invention.

Fig. 6 is a schematic structural diagram of a conventional convex hull forming mechanism.

Referring to fig. 1 to 6, wherein 1 is a slotting tool, 2 is a product, 3 is a stripper plate insert, 4 is a stop plate, 5 is a lower template insert, 6 is a forming punch, 7 is a rotating shaft, 8 is a spring, 9 is a lower template, 10 is a lower die pad, 11 is an existing slotting tool, 12 is a first wear plate, 13 is a first lower sliding plate, 14 is a stopper, 15 is a second lower sliding plate, 16 is a punch, 17 is a lower die block, 18 is another spring, 19 is a second wear plate, 20 is a lower die holder, and 21 is a convex closure.

Detailed Description

The invention will be further described with reference to the accompanying drawings.

As shown in fig. 1 to 5, a lower template 9 is arranged below the stop plate 4, a first groove is arranged in the middle of the stop plate 4, the upper portions of forming punches 6 are arranged on the left side and the right side of the first groove respectively, the lower portions of the forming punches 6 penetrate through the lower template 9 and are rotatably connected with the lower template 9 through rotating shafts 7, slotting tools 1 are arranged on the upper portions of the forming punches 6 on the left side and the right side, stripper plate inserts 3 are arranged on the outer sides of the upper portions of the forming punches 6, lower template inserts 5 are arranged on the outer sides of the middle portions of the forming punches 6, springs 8 are arranged on the lower portions of the forming punches 6 on the left side and the right side, and a first gap is arranged between the forming punches 6 and the stripper plate inserts 3 and the lower template inserts 5.

The lower part of the slotting tool 1 is of a round angle trapezoidal structure, and the upper part of the slotting tool 1 is of a rectangular structure.

The slotting tool 1 is in contact with or separated from the forming punches 6 on the left and right sides.

The lower end of the lower template 9 is provided with a lower die cushion 10, and the lower end of the forming punch 6 is abutted to the upper end of the lower die cushion 10.

The upper part of the lower template insert 5 is positioned below the stripper plate insert 3, and the lower part of the lower template insert 5 passes through the upper end of the lower template 9 and is positioned in the lower template 9.

The lower part of the forming punch 6 is positioned in the lower template 9, and a second gap is formed between the lower part of the forming punch 6 and the inner wall of the lower template 9.

The left side of the spring 8 is connected with a left side forming punch, and the right side of the spring 8 is connected with a right side forming punch.

The lower portion of the forming punch 6 is of a rectangular structure, a concave structure is arranged on the outer side of the upper portion of the forming punch 6, the structures of the upper portion of the forming punch 6, the stripper plate insert 3 and the lower template insert 5 are matched with the structure of the product 2, a first gap is formed between the forming punch 6, the stripper plate insert 3 and the lower template insert 5, the structure of the first gap is matched with the structure of the product, and when the product is guaranteed to be used specifically, the product to be processed can be placed in the first gap.

The lower part of the forming punch 6 is rotatably connected with the lower template 9 through a rotating shaft 7, and a second gap is formed between the lower part of the forming punch 6 and the inner wall of the lower template 9, so that the lower part of the forming punch 6 can rotate in the lower template 9.

In a specific use, as shown in fig. 1, before the slotting tool 1 contacts the forming punch 6, the upper parts of the forming punches 6 on the left side and the right side are in a tightened state under the action of the spring 7, and the product 2 to be machined is placed in the first gap. Next, as shown in fig. 2, the slotting tool 1 is inserted downward between the left and right forming punches 6, the forming punches 6 rotate around the rotating shaft 7, and the convex hulls are formed by the cooperation of the forming punches 6, the stripper plate inserts 3, and the lower template inserts 5. At which time the spring 8 is tightened. After the convex hull 21 is formed, the slotting tool 1 moves upwards to exit between the forming punches 6 at the left side and the right side, at the moment, the spring 8 is released, and the forming punches 6 are restored to the initial state under the action of the spring 8, as shown in fig. 1, and the state of the next preparation work is started.

The utility model discloses improve the convex closure shaping mode and once can accomplish 2 convex closure shaping, improved production efficiency. The forming punch 6 does not need to be partially hollowed, and the strength is guaranteed. Through setting up shaping drift 6, taking off flitch mold insert 3, lower bolster mold insert 5, first clearance, accurate location product 2 guarantees the stability of quality of product 2 to easily adjust the position of shaping convex closure 21, shorten the examination mould time. The mould is small in size, the cost for producing the mould is saved, the mould can be produced by using a progressive die, materials are saved, and the material utilization rate is improved.

Claims

1. The utility model provides a convex hull forming mechanism, includes backstop board, lower bolster, its characterized in that: backstop board (4) below be equipped with lower bolster (9), it is equipped with first recess to be located backstop board (4) middle part, the left and right sides in the first recess is equipped with shaping drift (6) upper portion respectively, shaping drift (6) lower part is passed lower bolster (9) and is rotated with lower bolster (9) through pivot (7) and be connected, upper portion is equipped with slotting tool (1) between the shaping drift (6) of the left and right sides, shaping drift (6) upper portion outside is equipped with takes off flitch mold insert (3), shaping drift (6) middle part outside is equipped with lower bolster mold insert (5), the lower part is equipped with spring (8) between the shaping drift (6) of the left and right sides, be located shaping drift (6), take off and be equipped with first clearance between flitch mold insert (3) and lower bolster mold insert (5).

2. The convex hull forming mechanism according to claim 1, wherein: the lower part of the slotting tool (1) is of a round angle trapezoidal structure, and the upper part of the slotting tool (1) is of a rectangular structure.

3. A convex hull forming mechanism according to claim 1 or 2, wherein: the slotting tool (1) is contacted with or separated from the forming punches (6) on the left side and the right side.

4. The convex hull forming mechanism according to claim 1, wherein: the lower die plate (9) is provided with a lower die pad (10) at the lower end, and the lower end of the forming punch head (6) is abutted against the upper end of the lower die pad (10).

5. The convex hull forming mechanism according to claim 1, wherein: the upper part of the lower template insert (5) is positioned below the stripper plate insert (3), and the lower part of the lower template insert (5) penetrates through the upper end of the lower template (9) and is positioned in the lower template (9).

6. The convex hull forming mechanism according to claim 1, wherein: the lower part of the forming punch head (6) is positioned in the lower template (9), and a second gap is formed between the lower part of the forming punch head (6) and the inner wall of the lower template (9).

7. The convex hull forming mechanism according to claim 1, wherein: the left side of the spring (8) is connected with the left side forming punch, and the right side of the spring (8) is connected with the right side forming punch.