A structure of a drawing reverse top

Abstract

The utility model discloses a kind of drawbeating reverse top structures, the device includes mould body, mould body is formed by lower mould and upper mould spliced combination, the inside of upper mould is provided with reverse top unit, fixed block in reverse top unit is fixedly assembled on upper mould, fixed block equidistance array setting, reverse top swing block end portion rotationally connected in the inside of fixed block, jacking piece is set in the inside of upper mould, jacking piece is driven connection with reverse top swing block, the device is set by setting reverse top unit in the inside of upper mould, when upper and lower mould separate, jacking piece can drive reverse top swing block swing, effectively support the product edge of flanging high, solve the situation that product edge suddenly lacks support when traditional mould separates, avoid the occurrence of product edge wrinkling and stacking phenomenon, improve the appearance quality and dimensional accuracy of product, reduce the scrappage rate of product, satisfy the demand of user.

Description

Technical Field

[0001] This utility model relates to the field of hardware mold technology, and in particular to a drawing reverse top structure. Background Technology

[0002] Metal flanging dies are commonly used equipment in the hardware processing field. They are mainly used to flanging metal sheets and other hardware parts. Through the cooperation of the upper and lower dies, the edges of the hardware parts are bent according to the preset shape and size, thereby meeting the structural requirements of different hardware products. After the mold finishes processing the hardware parts, the upper mold and the lower mold are separated to remove the processed product. However, for some hardware products with high flange height, at the moment the upper and lower molds separate, the product suddenly loses the clamping force of the mold, and the product edge is very prone to wrinkling and stacking. This wrinkling and stacking problem seriously affects the appearance quality of the product, cannot meet the subsequent assembly requirements, increases the scrap rate of the product, and has limitations.

[0003] The reason for this problem is that when processing products with a high flanging height, the edge of the product will generate a large stress during the flanging process. This stress is in a relatively stable equilibrium state when the mold is clamped. However, at the moment when the upper and lower molds separate and the clamping force is suddenly lost, the stress balance of the product edge is broken. Due to the lack of effective support and constraint structure, the product edge material will undergo irregular shrinkage and deformation under its own stress, which leads to the occurrence of wrinkling and stacking of materials, thus having limitations. Utility Model Content

[0004] The purpose of this invention is to provide a drawing reverse top structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a drawing anti-top structure, including a mold body, the mold body being assembled from a lower mold and an upper mold, the upper mold having an anti-top unit inside, the anti-top unit including a fixing block, an anti-top swing block and a lifting component; The fixed block is fixedly assembled on the upper mold. The fixed blocks are arranged in an equidistant array. The end of the anti-top swing block is rotatably connected to the inside of the fixed block. The lifting member is arranged inside the upper mold. The lifting member is driven to connect with the anti-top swing block. The lifting member is used to drive the anti-top swing block to swing left and right around the fixed block as the center.

[0006] Preferably, a lifting plate is provided on the lower mold, and a lower mold pad is provided between the lifting plate and the lower mold.

[0007] Preferably, a lower template insert is fixedly assembled inside the lower mold, and the lower template insert penetrates the lifting plate.

[0008] Preferably, a stop plate is fixedly mounted on the upper mold, and a pressure plate is fixedly mounted inside the stop plate, the pressure plate being movably engaged inside the lower mold insert.

[0009] Preferably, the lifting component includes a first push-pull cylinder and a main push rod; The first push-pull cylinder is fixedly assembled inside the upper mold; the main ejector rod is located below the first push-pull cylinder, the output shaft of the first push-pull cylinder is fixedly assembled with the main ejector rod, and the end of the main ejector rod is rotatably connected to one side of the top of the anti-top swing block.

[0010] Preferably, the lifting component further includes a second push-pull cylinder; The second push-pull cylinder is located on one side of the first push-pull cylinder.

[0011] Preferably, the lifting component further includes a secondary lifting rod; The auxiliary push rod is located below the second push-pull cylinder. The output shaft of the second push-pull cylinder is fixedly assembled with the auxiliary push rod, and the end of the auxiliary push rod is rotatably connected to the other side of the top of the anti-top swing block.

[0012] The technical effects and advantages of this utility model are as follows: This device, by setting a reverse-top unit inside the upper mold, allows the lifting component to drive the reverse-top swing block to swing when the upper and lower molds separate, effectively supporting the product edge with high flange. This solves the problem of sudden lack of support at the product edge when the traditional mold separates, avoids the phenomenon of wrinkling and stacking of material at the product edge, improves the appearance quality and dimensional accuracy of the product, reduces the scrap rate of the product, and meets the needs of users. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the upper mold of this utility model; Figure 3 This is a schematic diagram of the lower mold of this utility model; Figure 4 This is a schematic diagram of the lifting component of this utility model.

[0014] In the diagram: 1. Lower mold; 2. Upper mold; 3. Anti-ejection unit; 31. Fixing block; 32. Anti-ejection swing block; 33. Elevating component; 331. First push-pull cylinder; 332. Main ejector rod; 333. Second push-pull cylinder; 334. Secondary ejector rod; 34. Lifting plate; 35. Lower mold pad; 36. Lower mold plate insert; 37. Stop plate; 38. Pressure plate. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] This utility model provides, for example Figures 1 to 3 The drawing anti-top structure shown includes a mold body, which is composed of a lower mold 1 and an upper mold 2. An anti-top unit 3 is provided inside the upper mold 2. The anti-top unit 3 includes a fixing block 31, an anti-top swing block 32, and a lifting component 33. The fixed block 31 is fixedly assembled on the upper mold 2. The fixed blocks 31 are arranged in an equidistant array. The end of the anti-top swing block 32 is rotatably connected to the inside of the fixed block 31. The lifting member 33 is arranged inside the upper mold 2. The lifting member 33 is drivenly connected to the anti-top swing block 32. The lifting member 33 is used to drive the anti-top swing block 32 to swing left and right with the fixed block 31 as the center.

[0017] Example 1: In this example, during actual use, the hardware to be processed is first placed on the lower template insert 36, and then the upper mold 2 is driven to move downward, so that the upper mold 2 and the lower mold 1 are spliced ​​together. At this time, the pressure plate 38 is engaged inside the lower template insert 36 to clamp and fix the hardware. Then the mold performs flanging processing on the hardware according to the preset processing technology. When the processing is completed, when the upper mold 2 and the lower mold 1 are separated, the first push-pull cylinder 331 and the second push-pull cylinder 333 are controlled to work. The output shaft of the first push-pull cylinder 331 pushes the main push rod 332 to move downward, and the output shaft of the second push-pull cylinder 333 pulls the auxiliary push rod 334 to move upward. The main push rod 332 and the auxiliary push rod 334 together drive the anti-top swing block 32 to swing around the fixed block 31, so that the end of the anti-top swing block 32 contacts the edge of the hardware and supports it. Next, the upper mold 2 is driven to move upward, realizing the separation of the upper mold 2 and the lower mold 1. During the separation process, the anti-top rocker block 32 continuously supports the edge of the hardware, avoiding the phenomenon of wrinkling and stacking of the product edge due to sudden loss of clamping force. After the mold is completely separated, the output shafts of the first push-pull cylinder 331 and the second push-pull cylinder 333 are controlled to retract in the opposite manner to the above, driving the anti-top rocker block 32 to reset. Finally, the processed product is lifted by the lifting plate 34, making it easy to take out the product.

[0018] like Figure 4The drawing anti-top structure shown includes a mold body, which is composed of a lower mold 1 and an upper mold 2. An anti-top unit 3 is provided inside the upper mold 2. The anti-top unit 3 includes a fixing block 31, an anti-top swing block 32, and a lifting component 33. The fixed block 31 is fixedly assembled on the upper mold 2. The fixed blocks 31 are arranged in an equidistant array. The end of the anti-top swing block 32 is rotatably connected to the inside of the fixed block 31. The lifting member 33 is arranged inside the upper mold 2. The lifting member 33 is drivenly connected to the anti-top swing block 32. The lifting member 33 is used to drive the anti-top swing block 32 to swing left and right with the fixed block 31 as the center.

[0019] A lifting plate 34 is provided on the lower mold 1, and a lower mold pad 35 is provided between the lifting plate 34 and the lower mold 1. A lower template insert 36 is fixedly assembled inside the lower mold 1, and the lower template insert 36 passes through the lifting plate 34. A stop plate 37 is fixedly assembled on the upper mold 2, and a pressure plate 38 is fixedly assembled inside the stop plate 37, and the pressure plate 38 is movably engaged inside the lower template insert 36. The lifting component 33 includes a first push-pull cylinder 331 and a main ejector rod 332; the first push-pull cylinder 331 is fixedly assembled inside the upper mold 2; the main ejector rod 332 is located below the first push-pull cylinder 331, the output shaft of the first push-pull cylinder 331 is fixedly assembled with the main ejector rod 332, and the end of the main ejector rod 332 is rotatably connected to one side of the top of the anti-lifting swing block 32. The lifting component 33 also includes a second push-pull cylinder 333; the second push-pull cylinder 333 is located on one side of the first push-pull cylinder 331. The lifting component 33 also includes a secondary lifting rod 334; the secondary lifting rod 334 is located below the second push-pull cylinder 333, the output shaft of the second push-pull cylinder 333 is fixedly assembled with the secondary lifting rod 334, and the end of the secondary lifting rod 334 is rotatably connected to the other side of the top of the anti-lifting swing block 32.

[0020] Example 2: In this example, the fixed block 31 is fixedly assembled at a preset position on the upper mold 2 by bolts in an equidistant array. The end of the anti-top swing block 32 is rotatably connected to the inside of the fixed block 31 by a pin, so that the anti-top swing block 32 can swing flexibly around the fixed block 31. The first push-pull cylinder 331 and the second push-pull cylinder 333 in the lifting component 33 are both fixedly assembled on the mounting base inside the upper mold 2 by bolts. The lower mold 1 is provided with a lifting cylinder. The output shaft of the lifting cylinder is fixedly assembled with the lifting plate 34. The lifting cylinder is used to drive the lifting plate 34 to move vertically, ensuring convenient and quick unloading.

[0021] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A drawing reverse-ejection structure, comprising a mold body, wherein the mold body is composed of a lower mold (1) and an upper mold (2) joined together, characterized in that, The upper mold (2) is provided with an anti-top unit (3), which includes a fixed block (31), an anti-top swing block (32), and a lifting component (33). The fixed block (31) is fixedly assembled on the upper mold (2). The fixed blocks (31) are arranged in an equidistant array. The end of the anti-top swing block (32) is rotatably connected to the inside of the fixed block (31). The lifting member (33) is arranged inside the upper mold (2). The lifting member (33) is driven to connect with the anti-top swing block (32). The lifting member (33) is used to drive the anti-top swing block (32) to swing left and right with the fixed block (31) as the center.

2. The drawn inverted top structure according to claim 1, characterized in that, The lower mold (1) is provided with a lifting plate (34), and a lower mold pad (35) is provided between the lifting plate (34) and the lower mold (1).

3. The drawn inverted top structure according to claim 2, characterized in that, The lower mold (1) is internally fixedly equipped with a lower template insert (36), which penetrates the lifting plate (34).

4. The drawn inverted top structure according to claim 1, characterized in that, A stop plate (37) is fixedly mounted on the upper mold (2), and a pressure plate (38) is fixedly mounted inside the stop plate (37). The pressure plate (38) is movably engaged inside the lower mold insert (36).

5. The drawn inverted top structure according to claim 1, characterized in that, The lifting component (33) includes a first push-pull cylinder (331) and a main push rod (332): The first push-pull cylinder (331) is fixedly assembled inside the upper mold (2); The main push rod (332) is located below the first push-pull cylinder (331). The output shaft of the first push-pull cylinder (331) is fixedly assembled with the main push rod (332). The end of the main push rod (332) is rotatably connected to one side of the top of the anti-top swing block (32).

6. The drawn inverted top structure according to claim 5, characterized in that, The lifting component (33) also includes a second push-pull cylinder (333): The second push-pull cylinder (333) is located on one side of the first push-pull cylinder (331).

7. The drawn inverted top structure according to claim 6, characterized in that, The lifting component (33) also includes a secondary lifting rod (334): A secondary push rod (334) is located below the second push-pull cylinder (333). The output shaft of the second push-pull cylinder (333) is fixedly assembled with the secondary push rod (334). The end of the secondary push rod (334) is rotatably connected to the other side of the top of the anti-top swing block (32).

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