CN214184894U

CN214184894U - Continuous bending die for long and narrow products

Info

Publication number: CN214184894U
Application number: CN202023117740.3U
Authority: CN
Inventors: 郭伟竹
Original assignee: Xiamen Xin Sheng Mechanical And Electronic Industry Co ltd
Current assignee: Xiamen Xin Sheng Mechanical And Electronic Industry Co ltd
Priority date: 2020-12-22
Filing date: 2020-12-22
Publication date: 2021-09-14
Anticipated expiration: 2030-12-22

Abstract

The utility model provides a continuous bending die for long and narrow products, which comprises an upper die and a lower die which are matched with each other, wherein the lower die is provided with a bending die insert and a cutting die insert, and the cutting die insert is positioned at the transmission rear part of the bending die insert and has a certain distance with the bending die insert; the upper die is provided with a first bending convex die corresponding to the front end of the bending concave die insert, a second bending convex die corresponding to the rear end of the bending concave die insert and a cutting convex die corresponding to the cutting concave die insert; the first bending male die and the second bending male die are arranged at equal height, and the force bearing part of the first bending male die, which is used for being abutted against the product, and the force bearing part of the second bending male die, which is used for being abutted against the product are both provided with rollers. The process requirements of the product can be well guaranteed.

Description

Continuous bending die for long and narrow products

Technical Field

The utility model relates to the field of machining, concretely relates to continuous mould is bent to long narrow shape product.

Background

A long narrow product 100 with a bending structure is shown in fig. 1, and the structure of this product is characterized by being long and narrow and being bent on one side, that is, having only one bending section, and the bending section is formed by punching and forming through a bending die. However, in the prior art, only one bending male die is used for bending a product with only one bending section when the product is bent, and due to the asymmetrical stress of the product part when the product part is bent, the problems that the product part is easily twisted along the bending edge, the sizes of two bent straight edges are unstable and the like exist in the production process.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model provides a pair of continuous mould is bent to long narrow shape product can effectively solve above-mentioned problem.

In order to achieve the above purpose, the utility model provides a technical scheme as follows:

a continuous bending die for long and narrow products comprises an upper die and a lower die which are matched with each other, wherein the lower die is provided with a bending female die insert and a cutting female die insert, and the cutting female die insert is positioned behind the transmission of the bending female die insert and has a certain distance with the bending female die insert; the upper die is provided with a first bending convex die corresponding to the front end of the bending concave die insert, a second bending convex die corresponding to the rear end of the bending concave die insert and a cutting convex die corresponding to the cutting concave die insert; the first bending male die and the second bending male die are arranged at equal height, and the force bearing part of the first bending male die, which is used for being abutted against the product, and the force bearing part of the second bending male die, which is used for being abutted against the product are both provided with rollers.

Further, the first bending male die and the second bending male die are both provided with a bottom end face and an action side end face facing the bending female die insert, the stress part of the first bending male die and the stress part of the second bending male die respectively comprise an inclined action face connecting the bottom end face and the action side end face and a vertical action face formed on the action side end face and connected with the inclined action face, and the outer surface of the roller is tangential to the inclined action face and the vertical action face.

Furthermore, the bending female die insert consists of a first insert and a second insert which are arranged at intervals, the first insert is positioned at the front end of the second insert, the first bending male die corresponds to the front end of the first insert, and the second bending male die corresponds to the rear end of the second insert.

Furthermore, the bending female die insert is provided with a through hole, and a lifting movable ejector rod is arranged in the through hole in a penetrating mode.

Furthermore, a discharging plate is further arranged between the upper die and the lower die, the discharging plate is respectively provided with a yielding hole corresponding to the first bending male die, the second bending male die and the cutting male die, and the first bending male die, the second bending male die and the cutting male die penetrate through the corresponding yielding holes.

Further, the cutting concave die insert forms a cutting matching hole at the position opposite to the cutting convex die.

Furthermore, the cutting bottom surface of the cutting convex die is provided with a reversed L-shaped step matched with the shape of the product bending section.

Through the utility model provides a technical scheme has following beneficial effect:

this scheme adopts two-sided symmetry to bend, bends the operation simultaneously through first terrace die and the second terrace die of bending promptly, treats that the atress is symmetrical and even around the operation product, and the side of bending that leads to because of the atress is inhomogeneous among the solution prior art that can be fine produces distortion, bends two straight flange size unstability scheduling problem. Then, unnecessary parts are cut off through the matching of the cutting concave die insert and the cutting convex die, so that the process requirements of products are guaranteed.

Meanwhile, the arrangement of the rollers can reduce the friction force during bending and reduce indentation deformation caused by material stress, so that the processing quality is better.

Drawings

FIG. 1 is a schematic structural view of a long and narrow product;

FIG. 2 is a schematic structural diagram of a continuous bending die for a long and narrow product in an embodiment;

FIG. 3 is an enlarged schematic view of area A of FIG. 2;

fig. 4 is a schematic structural diagram of a bending operation of a bending continuous die for a long and narrow product in the embodiment.

Detailed Description

To further illustrate the embodiments, the present invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. With these references, one of ordinary skill in the art will appreciate other possible embodiments and advantages of the present invention. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.

The present invention will now be further described with reference to the accompanying drawings and detailed description.

Referring to fig. 2 to 4, the present embodiment provides a bending continuous die for a long and narrow product, which includes an upper die and a lower die that are matched with each other, specifically, the lower die includes a lower die plate 201, a lower backing plate 202 and a lower fixing plate 203 that are stacked in sequence from bottom to top, although in other embodiments, the specific stacked structure of the lower die is not limited thereto. The lower die is provided with a bending female die insert 21 and a cutting female die insert 23, and the cutting female die insert 23 is positioned behind the transmission of the bending female die insert 21 and has a certain distance with the bending female die insert 21; specifically, in practical applications, the conveying direction of the product 100 is from left to right in fig. 2, and therefore, the left end in fig. 2 is the front end, and the right end is the rear end. The cutting die insert 23 is located to the right of the bending die insert 21. More specifically, the bending die insert 21 and the cutting die insert 23 are both disposed on the lower fixing plate 203.

Specifically, the upper mold comprises an upper mold plate 101, an upper cushion plate 102, an upper fixing plate 103 and a limiting plate 104 which are stacked in sequence from top to bottom, but in other embodiments, the specific stacked structure of the upper mold is not limited thereto. The upper die is also provided with a first bending convex die 11 corresponding to the front end of the bending concave die insert 21, a second bending convex die 12 corresponding to the rear end of the bending concave die insert 21 and a cutting convex die 13 corresponding to the cutting concave die insert 23; the first bending punch 11, the second bending punch 12 and the cutting punch 13 are embedded in the upper fixing plate 102 and the limiting plate 104. The first bending male die 11 and the second bending male die 12 are arranged at the same height, that is, the bottom end surface 111 of the first bending male die 11 and the bottom end surface 121 of the second bending male die 12 are located on the same plane, and the force-bearing portion of the first bending male die 11 for abutting against a product and the force-bearing portion of the second bending male die 12 for abutting against the product are both provided with rollers, such as a roller 115 arranged on the first bending male die 11 and a roller 125 arranged on the second bending male die 12.

During operation, a product 1 to be operated is placed on the bending female die insert 21, the upper die is punched downwards, the front end and the rear end of the product 1 to be operated can be punched simultaneously by the equal-height arrangement of the first bending male die 11 and the second bending male die 12, double-sided symmetrical bending is carried out, the front stress and the rear stress of the product 1 are symmetrical and uniform, and the problems that the bending edge is distorted due to nonuniform stress, the sizes of two bent straight edges are unstable and the like in the prior art can be well solved. Meanwhile, due to the arrangement of the

rollers

115 and 125, in the stamping and bending process, the

rolling balls

115 and 125 are in contact with the product, so that the friction force between the bending male die and the product 1 during bending can be reduced, the indentation deformation caused by material stress is reduced, and the processing quality is better. After the double-sided bending is finished, unnecessary waste materials 2 are cut off through the cooperation of the cutting female die insert 23 and the cutting male die 13, and the required long and narrow product 100 with a single bending section is obtained. Thus, the process requirements of the product are ensured.

Specifically, the first bending punch 11 and the second bending punch 12 each have a bottom end face and an action-side end face facing the bending die insert, such as a bottom end face 111 of the first bending punch 11 and an action-side end face 112 facing the bending die insert 21; a bottom end face 121 of the second bending punch 12 and an action side end face 122 facing the bending die insert 21; the force receiving portion of the first bending punch 11 and the force receiving portion of the second bending punch 12 each include an inclined action surface connecting the bottom end surface and the action-side end surface and a vertical action surface formed on the action-side end surface and connected to the inclined action surface, for example, the force receiving portion of the first bending punch 11 includes an inclined action surface 113 connecting the bottom end surface 111 and the action-side end surface 112 and a vertical action surface 114 formed on the action-side end surface 112 and connected to the inclined action surface 113, and the force receiving portion of the second bending punch 12 includes an inclined action surface 123 connecting the bottom end surface 121 and the action-side end surface 122 and a vertical action surface 124 formed on the action-side end surface 122 and connected to the inclined action surface 123. The outer surfaces of said rollers are simultaneously tangent to the inclined active surface and to the vertical active surface, i.e. the outer surface of roller 115 is simultaneously tangent to the inclined active surface 113 and to the vertical active surface 114, and the outer surface of roller 125 is simultaneously tangent to the inclined active surface 123 and to the vertical active surface 124. In the stamping process, because the front end of the product is shorter, the bottom end face 111 of the first bending male die 11 does not contact the product 1, but the inclined acting face 113 of the first bending male die 11 directly abuts against the surface of the product 1, and the inclined acting face 113 has a good guiding effect; with the continuous pressing, the inclined acting surface 113 is transited to the vertical acting surface 114, the product 1 is bent and formed, and in the process of transiting from the inclined acting surface 113 to the vertical acting surface 114, the product 1 is formed by the rolling fit of the roller 115, so that the friction force between the first bending male die 11 and the product 1 during bending can be reduced, the indentation deformation caused by material stress is reduced, and the processing quality is better. The rear end of the product 1 is bent and formed through the second bending male die 12, and because the rear end of the product 1 is longer, the bottom end face 121 of the second bending male die 12 firstly abuts against the surface of the product 1 and is transited to the inclined action face 123 along with continuous pressing, and the inclined action face 123 has a good guiding effect; with the continuous pressing, the inclined acting surface 123 is transited to the vertical acting surface 124, bending forming is carried out on the product, and in the process of transiting from the inclined acting surface 123 to the vertical acting surface 124, the product is formed through rolling fit of the rollers 125, so that the friction force between the second bending male die 12 and the product 1 during bending can be reduced, indentation deformation caused by material stress is reduced, and the processing quality is better. Of course, in other embodiments, the structure of the force receiving portion is not limited thereto.

Further, in this embodiment, the bending female die insert 21 is composed of a first insert 211 and a second insert 212 which are arranged at a certain interval, the first insert 211 is located at the front end of the second insert 212, the first bending male die 11 corresponds to the front end of the first insert 211, and the second bending male die 12 corresponds to the rear end of the second insert 212. The bending female die insert 21 is composed of two inserts, and can be suitable for products with different lengths by adjusting the distance between the two inserts. Of course, when adjusting the distance between the two inserts, the first bending punch 11 and the second bending punch 12 also need to be adjusted correspondingly. In other embodiments, the bending matrix insert 21 may be realized as a unitary structure.

Still further, the bending female die insert 21 has a through hole (not shown), and a lifting and moving ejector rod 22 is inserted into the through hole. Namely, the first insert 211 and the second insert 212 are both provided with through holes, and the two ejector rods 22 are respectively arranged in the through holes of the first insert 211 and the second insert 212 in a penetrating manner in a lifting and moving manner; specifically, the bottom end of the ejector rod 22 passes through the lower backing plate 202 of the lower die and is fixed to the lower template 201, and the ejector rod 22 is driven to lift through the lifting action of the lower template 201 relative to the lower fixing plate 203, so that the product is ejected after the product is bent.

Further, in this embodiment, a discharging plate 30 is further disposed between the upper die and the lower die, the discharging plate 30 is respectively provided with a yielding hole (not shown) corresponding to the first bending male die 11, the second bending male die 12 and the cutting male die 13, and the first bending male die 11, the second bending male die 12 and the cutting male die 13 are arranged in the corresponding yielding hole in a penetrating manner. In the operation process, when the punch press descends, the discharging plate 30 compresses a product, and when the upper die continues to descend, the first bending male die 11, the second bending male die 12 and the cutting male die 13 perform punching operation. The operation effect is better. Of course, in other embodiments, the stripper plate configuration is not required as the product can be positioned well by a carrier tape or the like when it is being transported into place.

Further, in this embodiment, the cutting die insert 23 forms a cutting engagement hole 231 at a position facing the cutting punch 13, the portion of the scrap 2 to be cut is located in the cutting engagement hole 231, and the cutting punch 13 cuts the scrap 2 while inserting the scrap into the cutting engagement hole 231 by pressing downward, thereby functioning as a relief. Of course, in other embodiments, the structure of the cutting die insert 23 is not limited thereto.

Still further, the bottom surface of cutting off terrace die 13 is formed with the step 131 of the shape of gamma-type that matches with the appearance of product bending segment (promptly waste material 2), so, when cutting off terrace die 13 descends to just contacting waste material 2, step 131 can be fine supports the waste material, and when resuming punching press, the waste material section atress is even, and the section of cutting off is neat, and waste material 2 can not outwards splash, cuts off the better effect. Of course, in other embodiments, the structure of the cutting punch 13 is not limited to this.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a continuous mould that bends of long narrow shape product which characterized in that: the mold comprises an upper mold and a lower mold which are matched with each other, wherein the lower mold is provided with a bending female mold insert and a cutting female mold insert, and the cutting female mold insert is positioned behind the transmission of the bending female mold insert and has a certain distance with the bending female mold insert;

the upper die is provided with a first bending convex die corresponding to the front end of the bending concave die insert, a second bending convex die corresponding to the rear end of the bending concave die insert and a cutting convex die corresponding to the cutting concave die insert; the first bending male die and the second bending male die are arranged at equal height, and the force bearing part of the first bending male die, which is used for being abutted against the product, and the force bearing part of the second bending male die, which is used for being abutted against the product are both provided with rollers.

2. The continuous bending die for long and narrow products according to claim 1, wherein: the first bending male die and the second bending male die are both provided with bottom end faces and action side end faces facing the bending female die insert, the stress part of the first bending male die and the stress part of the second bending male die respectively comprise inclined action faces connecting the bottom end faces and the action side end faces and vertical action faces formed on the action side end faces and connected with the inclined action faces, and the outer surfaces of the roller columns are tangent to the inclined action faces and the vertical action faces at the same time.

3. The continuous bending die for long and narrow products according to claim 1, wherein: the bending female die insert is composed of a first insert and a second insert which are arranged at intervals, the first insert is located at the front end of the second insert, the first bending male die corresponds to the front end of the first insert, and the second bending male die corresponds to the rear end of the second insert.

4. Continuous bending mould for long and narrow products according to claim 1 or 3, characterized in that: the bending female die insert is provided with a through hole, and a lifting and moving ejector rod is arranged in the through hole in a penetrating mode.

5. The continuous bending die for long and narrow products according to claim 1, wherein: the upper die is characterized in that a discharging plate is further arranged between the upper die and the lower die, the discharging plate is respectively provided with a yielding hole corresponding to the first bending male die, the second bending male die and the cutting male die, and the first bending male die, the second bending male die and the cutting male die penetrate through the corresponding yielding holes.

6. The continuous bending die for long and narrow products according to claim 1, wherein: and the cutting female die insert forms a cutting matching hole at the position opposite to the cutting male die.

7. The continuous bending die for long and narrow products according to claim 1, wherein: the cutting bottom surface of the cutting male die is provided with a reversed L-shaped step matched with the shape of the product bending section.