CN221620428U - Bending equipment - Google Patents

Abstract

The utility model provides bending equipment, which comprises a first bending die and a second bending die; the second bending die comprises a lower die plate, an upper die plate and a pushing block; the upper end face of the lower template comprises a first plane and a first inclined plane which is bent upwards from one end of the first plane and extends; the lower end surface of the upper template comprises a second plane and a second inclined plane; the upper template and the lower template can move in opposite directions, so that one end of the main body part, which faces the first bending part, is bent upwards to form a second bending part. The bending of second kink to can make things convenient for the ejector pad to remove towards lower bolster and cope match-plate pattern, so that the ejector pad can drive first kink and buckle, and make first kink buckle and pressfitting on the second kink towards the one end of second kink, through ejector pad and second inclined plane to the pressfitting of first kink and second kink, the abundant of folding structure that forms between effectual assurance first kink and the second kink is clapped.

Description

Bending equipment

Technical Field

The utility model relates to the technical field of household appliance manufacturing, in particular to bending equipment.

Background

Display products, television sets and other products are increasingly developed towards ultra-thin products along with the progress of technology. In general, an ultrathin television is configured such that a corresponding structure is fixed by a metal back plate, a metal middle frame, or the like, and the television can be made thinner by the strength of the metal.

The television frame or middle frame is a component wrapped around the edge of the television screen to fix and support the television screen. In the processing of the television backboard, some places need to be bent, and a laminated bending structure is generally required to be arranged at the same time of bending, so that the display panel and the corresponding optical film group can be conveniently fixed.

However, when the metal sheet metal part is formed by stamping, the shape of the material and the structure of the metal sheet metal part on the die influence the leveling of the laminated structure, so that the laminated structure cannot always be completely leveled, and the bending success rate of the product is affected.

Disclosure of utility model

The utility model aims to provide bending equipment which can fully ensure the full flattening of a laminated structure on a plate.

In order to solve the technical problems, the utility model adopts the following technical scheme:

According to one aspect of the present utility model, there is provided a bending apparatus comprising a first bending die and a second bending die; the first bending die is used for punching and bending the plate, so that the punched plate comprises a main body part and a first bending part which bends downwards from one end of the main body part and extends along a straight line; the second bending die comprises a lower die plate, an upper die plate and a pushing block; the upper template is positioned above the lower template, and the upper template and the lower template can move in opposite directions; the upper end face of the lower die plate comprises a first plane and a first inclined plane which is bent upwards from one end of the first plane and extends; the lower end face of the upper template comprises a second plane and a second inclined plane; the second plane is parallel and corresponds to the first plane, and the second inclined plane is parallel and corresponds to the first inclined plane; when the upper template is close to the lower template, the main body part is clamped between the lower end face of the upper template and the upper end face of the lower template, so that the main body part is upwards bent towards one end of the first bending part to form a second bending part; the pushing block is positioned at one side of the lower die plate, provided with a first abutting surface, and is positioned below the upper die plate; the pushing block can move towards the lower die plate and the upper die plate, and is used for driving the first bending part to bend, and enabling the first bending part to bend towards one end of the second bending part and be pressed on the second bending part.

In some embodiments of the present application, an end of the first inclined surface facing away from the first plane is bent downward and extends to form an abutting surface; a first pressing surface and a second pressing surface which is formed by bending downwards from the first pressing surface towards one end of the lower die plate and extending are formed on the upper end surface of the pushing block towards one end of the lower die plate; the first pressing surface corresponds to and is parallel to the second inclined surface, and the second pressing surface corresponds to and is parallel to the abutting surface; the pushing block can approach to the lower die plate, so that the first bending part is bent and attached to the first pressing surface and the second pressing surface of the pushing block, and the first bending part is bent to form an attaching section and an extending section; the attaching section is connected with and attached to the second bending part, and the extending section bends downwards and extends from one end of the attaching section, which is opposite to the second bending part.

In some embodiments of the application, the second inclined surface is perpendicular to the abutment surface such that the pressed sheet material is perpendicular between the conforming section and the extended section.

In some embodiments of the present application, the bending apparatus further comprises an upper die holder, a lower die holder, and a slider; the upper die plate is fixed on the upper die holder, the lower die plate is fixed on the lower die holder, and the upper die holder can move towards and away from the lower die holder; the sliding block is connected to the upper die holder and can slide relative to the upper die holder; the sliding block is positioned on one side of the pushing block, which is opposite to the lower die plate, and is used for pushing the sliding block to slide horizontally towards the lower die plate.

In some embodiments of the present application, a guide slope inclined downward is formed at an upper end of the push block and at an end facing away from the lower die plate; the sliding block can slide downwards relative to the upper die holder, and the sliding block abuts against the guide inclined plane.

In some embodiments of the present application, a point of the lower end of the slider toward the push block is formed with an upwardly inclined guide slope, and the guide slope is fitted to the guide slope.

In some embodiments of the present application, the push block is slidably connected to the lower die base in a horizontal direction so as to be capable of approaching and separating from the lower die plate; a fixed block is also fixed on the lower die holder; the fixed block is arranged on one side of the pushing block, which is away from the lower template; the fixed block is provided with a sliding rod extending horizontally, the sliding rod penetrates through the fixed block and is connected to the sliding rod in a sliding mode, and one end of the sliding rod is fixedly connected to the pushing block.

In some embodiments of the present application, a protruding portion is formed at an end of the sliding rod facing away from the push block in a manner of protruding radially outwards; an elastic piece is sleeved on the sliding rod; and two ends of the elastic piece are respectively abutted to the protruding part and the fixed block so as to drive the sliding rod to slide away from the upper template.

In some embodiments of the present application, a cavity is formed at one end of the fixing block facing away from the upper template; the elastic element is at least partially positioned in the concave cavity.

In some embodiments of the application, an end of the second inclined surface facing away from the first plane exceeds the first inclined surface.

According to the technical scheme, the utility model has at least the following advantages and positive effects:

In the utility model, the upper end surface of the lower template comprises a first plane and a first inclined surface which is bent upwards from one end of the first plane and extends; the lower end surface of the upper template comprises a second plane and a second inclined plane; the second plane is parallel and corresponds to the first plane, and the second inclined plane is parallel and corresponds to the first inclined plane. The upper die plate and the lower die plate can move in opposite directions to drive the lower end face of the upper die plate to be close to the upper end face of the lower die plate, and the main body part is clamped between the lower end face of the upper die plate and the upper end face of the lower die holder, so that one end, facing the first bending part, of the main body part is bent upwards to form a second bending part. The second kink is buckled to be formed with the contained angle that is greater than 180 degrees between make second kink downside and the main part, thereby can make things convenient for the ejector pad to remove towards lower bolster and cope match-plate pattern, so that the ejector pad can drive first kink and buckle, and make first kink buckle and pressfitting on the second kink towards the one end of second kink, through ejector pad and second oblique to the pressfitting of first kink and second kink, the abundant of folding structure that forms between effectual assurance first kink and the second kink is clapped.

Other features and advantages of the application will be apparent from the following detailed description, or may be learned by the practice of the application.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application as claimed.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure. It will be apparent to those of ordinary skill in the art that the drawings in the following description are merely examples of the disclosure and that other drawings may be derived from them without undue effort.

Fig. 1 is a forming structure of a sheet metal stamping part in the related art.

Fig. 2 is a schematic diagram of a first bending process according to an embodiment of the present utility model.

Fig. 3 is a schematic diagram of a second bending process according to an embodiment of the present utility model.

Fig. 4 is a schematic diagram of a third process step of the bending process according to the present utility model.

Fig. 5 is a schematic diagram of a fourth process step of the bending process according to the present utility model.

Fig. 6 is a schematic structural view of a second bending die of the present utility model.

Fig. 7 is a schematic view of the structure of the lower die plate of the present utility model.

Fig. 8 is a schematic view of the structure of the upper die plate of the present utility model.

Fig. 9 is a schematic view of the structure of the inventive panel between the upper and lower die plates.

Fig. 10 is a schematic structural view of the push block of the present utility model.

Fig. 11 is a schematic view of the push block of the present utility model after punching a plate.

FIG. 12 is a schematic view of the structure of the slider of the present utility model.

Fig. 13 is a schematic view of the attachment of the fixed block and the pusher block of the present utility model.

Fig. 14 is a schematic view of a first process step of another embodiment of the bending process of the present utility model.

Fig. 15 is a schematic diagram of a second process step of another embodiment of the bending process of the present utility model.

Fig. 16 is a schematic diagram of a third process step of another embodiment of the bending process of the present utility model.

Fig. 17 is a schematic diagram of a fourth process step of another embodiment of the bending process of the present utility model.

The reference numerals are explained as follows: 11. a main body section; 12. a first bending section; 13. a second bending section; 14. a lamination section; 20. a main body portion; 21. a first bending part; 211. a bonding section; 212. an extension section; 22. a second bending part; 300. a second bending die; 310. a lower template; 311. a first plane; 312. a first inclined surface; 313. a top surface; 320. an upper template; 321. a second plane; 322. a second inclined surface; 330. a pushing block; 331. a first press-fit surface; 332. a second press-fit surface; 333. a guide slope; 340. an upper die holder; 350. a lower die holder; 360. a slide block; 361. a guide slope; 370. a fixed block; 371. a cavity; 380. a slide bar; 381. a projection.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments may be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art.

Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the application. One skilled in the relevant art will recognize, however, that the application may be practiced without one or more of the specific details, or with other methods, components, devices, steps, etc. In other instances, well-known methods, devices, implementations, or operations are not shown or described in detail to avoid obscuring aspects of the application.

The application will be described in further detail with reference to the drawings and the specific examples. It should be noted that the technical features of the embodiments of the present application described below may be combined with each other as long as they do not collide with each other. The embodiments described below by referring to the drawings are illustrative and intended to explain the present application and should not be construed as limiting the application.

In the related art, a back plate or a middle frame of a television set as a display device is formed by stamping metal sheet metal. When the metal sheet metal part is formed by stamping, due to the influence of the shape of a material and the structure of the metal sheet metal part on the die, the flattening of the laminated structure is influenced, and the laminated structure cannot be flattened completely, so that the bending success rate of a product is influenced.

Fig. 1 is a forming structure of a sheet metal stamping part in the related art.

Referring to fig. 1, the competition of the product is more and more vigorous, the supporting structure in the product is mostly stamping parts, and in order to reduce the cost and improve the effect, the supporting structure of the product is more and more complex, wherein the most complex bending structure similar to the "F" shape shown in fig. 1 is used, and the complex bending structure comprises a main body section 11, a first bending section 12, a second bending section 13 and a stacking section 14. The second bending section 13 is bent from one end of the main body section 11 and extends downward, the second bending section 13 is bent from one end facing away from the main body section 11 and extends reversely to form the laminated section 14, and the first bending section 12 is bent from one end facing away from the second bending section 13 and extends to form the laminated section 14. The lamination section 14 needs to be attached to the second bending section 13. In the production process, a general procedure is that one end of the main body section 11 is bent to form a first bending section 12, the first bending section 12 is bent at a preset position, the preset position and two ends of the first bending section 12 have a space, and a laminated section 14 is formed at one side of the first bending section 12, which is opposite to the free end of the laminated section. Finally, the main body section 11 is bent to form a second bending section 13. When the first bending section is bent to form the laminated section 14, the laminated structure is often not completely flattened due to the structure of the first bending section 12 and the mutual interference between the inner parts of the die structure, so that the yield of products is affected. The application provides bending equipment for solving the technical problems.

For convenience of description and understanding, the up-down, left-right directions are defined with reference to the arrangement orientation of the structure shown in fig. 1.

Fig. 2 is a schematic diagram of a first bending process according to an embodiment of the present utility model. Fig. 3 is a schematic diagram of a second bending process according to an embodiment of the present utility model. Fig. 4 is a schematic diagram of a third process step of the bending process according to the present utility model. Fig. 5 is a schematic diagram of a fourth process step of the bending process according to the present utility model.

Referring to fig. 2 to 5, a bending process is provided in this embodiment to bend a plate material by a bending apparatus.

Step one: pre-folding lines are formed; the pre-folding line is formed at a preset position of the plate by punching through a punching device. The setting of the pre-folding line is convenient for the subsequent bending of the plate, can be used for releasing material stress, and the subsequent bending angle is more stable. In this embodiment, two pre-folding lines are pre-formed on the board.

In this example, the depth of the pre-break line is 0.3 times the thickness of the sheet. It should be noted that the depth of the pre-folding line can be appropriately adjusted.

Step two: the plate is bent downwards to form a first bending part 21; the sheet material is press-bent such that the press-formed sheet material includes a main body portion 20 and a first bending portion 21 bent downward from one end of the main body portion 20 and extending in a straight line. The included angle between the main body 20 and the first bending portion 21 is any angle between 60 degrees and 120 degrees. In this embodiment, one end of the main body 20 is bent downward by 90 degrees and extends to form the first bending portion 21. In the present embodiment, the first bending portion 21 is formed by bending at one pre-folding line.

Step three: the main body portion 20 is upwardly bent toward one end of the first bending portion 21 to form a second bending portion 22. The first bending portion 21 is bent to form a fitting section 211 and an extension section 212, the fitting section 211 is connected to and fitted on the second bending portion 22, and the extension section 212 is bent downwards from one end of the fitting section 211, which is opposite to the second bending portion 22, and extends.

The main body portion 20 is upwardly bent toward one end of the first bending portion 21 by an arbitrary angle between 10 degrees and 30 degrees to form a second bending portion 22. In this embodiment, the main body 20 is bent upward by 15 degrees to form the second bending portion 22.

The first bending portion 21 is punched and bent, so that the first bending portion 21 is punched and bent to form two sections, namely a fitting section 211 and an extension section 212. The transition between the attachment section 211 and the extension section 212 is a pre-broken line. The attaching section 211 is connected to and attached to the second bending portion 22, and an angle of 90 degrees is formed between the extending section 212 and the attaching section 211.

And step four: the second bending portion 22 is bent downward, so that an included angle of 90 degrees is formed between the second bending portion 22 and the main body portion 20 after the second bending portion 22 is bent downward. After the second bending portion 22 is bent downward to form an angle of 90 degrees with the main body portion 20, the extension portion 212 is perpendicular to the second bending portion 22.

It should be noted that in some embodiments, the bending process does not include the first step. The bending process only comprises a second step, a third step and a fourth step.

Fig. 6 is a schematic structural view of a second bending die 300 according to the present utility model.

Referring to fig. 2 to 5, the present application provides a bending apparatus including a first bending die (not shown), and a second bending die 300. The first bending die is used for punching and bending the plate material, so that the punched plate material comprises a main body part 20 and a first bending part 21 which is bent downwards from one end of the main body part 20 and extends along a straight line. Namely, the first bending die is used in the second step.

The second bending die 300 is used in the third step. The second bending mold 300 includes a lower die plate 310, an upper die plate 320, and a push block 330. The upper template 320 is located above the lower template 310, and the upper template 320 and the lower template 310 can move in opposite directions to drive the lower end surface of the upper template 320 to approach the upper end surface of the lower template 310. The main body portion 20 is located between the upper die plate 320 and the lower die plate 310. The main body portion 20 is clamped between the lower end surface of the upper die plate 320 and the upper end surface of the lower die plate 310 such that the main body portion 20 is upwardly bent toward one end of the first bending portion 21 to form the second bending portion 22.

The pushing block 330 is positioned at one side of the lower template 310, and the pushing block 330 is positioned below the upper template 320; the pushing block 330 can move towards the lower die plate 310 and the upper die plate 320, so as to drive the first bending part 21 to bend, enable the first bending part 21 to bend towards one end of the second bending part 22 and be pressed on the second bending part 22, form a laminated structure at the part of the first bending part 21 pressed on the second bending part 22, and press the first bending part 21 and the second bending part 22 through the pushing block 330 and the upper die plate 320, so that the full flattening of the laminated structure formed between the first bending part 21 and the second bending part 22 is effectively ensured.

In this embodiment, the second bending die 300 further includes an upper die holder 340 and a lower die holder 350. The lower die holder 350 is located below the upper die holder 340. The lower die plate 310, the upper die plate 320, and the push block 330 are located between the upper die base 340 and the lower die base 350. The upper die plate 320 is fixed to the bottom end of the upper die holder 340, and the lower die plate 310 is fixed to the upper end of the lower die holder 350. The upper die holder 340 and the lower die holder 350 move in opposite directions and back to back, driving the lower die plate 310 and the upper die plate 320 to move in opposite directions and back to back.

Fig. 7 is a schematic view of the structure of the lower plate 310 of the present utility model. Fig. 8 is a schematic structural view of the upper plate 320 of the present utility model. Fig. 9 is a schematic view of the structure of the inventive sheet between the upper and lower templates 320 and 310.

Referring to fig. 6 to 9, the upper end surface of the lower die plate 310 includes a first plane 311 and a first inclined surface 312 bent upward and extended from one end of the first plane 311. In this embodiment, the first plane 311 extends horizontally, and the first inclined surface 312 extends obliquely upward from one end of the first plane 311. In some embodiments, the first plane 311 extends obliquely, and an included angle is formed between the first inclined plane 312 and the first plane 311.

One end of the first inclined surface 312 opposite to the first plane 311 is bent downwards and extends to form an abutting surface 313, and the first inclined surface 312 is perpendicular to the abutting surface 313. The abutting surface 313 is arranged on one side of the lower template 310 facing the pushing block 330.

The lower end surface of the upper template 320 includes a second plane 321 and a second inclined surface 322; the second plane 321 is parallel and corresponds to the first plane 311, and the second inclined plane 322 is parallel and corresponds to the first inclined plane 312. The second plane 321 and the second inclined plane 322 are located at the lowest end of the upper die holder 340, and other parts of the lower end of the upper die holder 340 do not extend downwards beyond the second plane 321 and the second inclined plane 322, so that interference between other structures on the second bending die 300 and the upper die holder 340 is effectively avoided.

The length of the second inclined surface 322 exceeds the length of the first inclined surface 312, specifically, the end of the second inclined surface 322 facing away from the first plane 311 exceeds the first inclined surface 312.

When the upper die plate 320 approaches the lower die plate 310, the main body 20 is clamped between the lower end surface of the upper die plate 320 and the upper end surface of the lower die plate 310, so that the main body 20 is clamped in the space formed between the first plane 311, the second plane 321, the first inclined surface 312 and the second inclined surface 322, and the main body 20 is pressed, so that the main body 20 is bent between the first plane 311 and the first inclined surface 312, and the second bending part 22 is formed on the main body 20.

The second bending portion 22 is attached to the second inclined surface 322, and one end of the second bending portion 22 facing the main body portion 20 is clamped between the first inclined surface 312 and the second inclined surface 322, and one end of the second bending portion 22 facing away from the main body portion 20 exceeds the first inclined surface 312, so as to expose the lower portion of the second inclined surface 322.

Fig. 10 is a schematic structural view of a push block 330 according to the present utility model. Fig. 11 is a schematic view of the push block 330 of the present utility model after punching a sheet.

Referring to fig. 6 to 11, the pushing block 330 is located at a side of the lower die plate 310 where the first abutment surface is provided, and the pushing block 330 is located below the upper die plate 320. A first press-fit surface 331 is formed on the upper end surface of the pushing block 330 facing the end of the lower die holder 350, and a second press-fit surface 332 is formed by bending and extending downwards from the first press-fit surface 331 toward the end of the lower die plate 310; the first pressing surface 331 corresponds to and is parallel to the second inclined surface 322, and the second pressing surface 332 corresponds to and is parallel to the top supporting surface 313; the pushing block 330 can approach to the lower die plate 310, so that the first bending portion 21 is bent and attached to the first pressing surface 331 and the second pressing surface 332 of the pushing block 330, and the first bending portion 21 is bent to form an attaching section 211 and an extending section 212; the attaching section 211 is connected to and attached to the second bending portion 22, and the extending section 212 is bent and extended downward from an end of the attaching section 211 opposite to the second bending portion 22.

In the present embodiment, the pusher 330 can be moved toward and away from the lower die plate 310 in the horizontal direction such that the pusher 330 is moved toward the upper die plate 320 and the lower die plate 310. The push block 330 is slidably disposed on the lower die holder 350 in the left-right direction. The push block 330 has a guide slope 333 formed at an upper end thereof and an end facing away from the lower die plate 310.

Fig. 12 is a schematic view of the structure of the slider 360 of the present utility model.

Referring to fig. 6 to 12, the second bending die 300 further includes a slider 360, and the slider 360 is connected to the upper die holder 340 and can slide relative to the upper die holder 340; the slider 360 is located on a side of the push block 330 facing away from the lower die plate 310 for pushing the slider 360 to slide horizontally toward the lower die plate 310. The slider 360 can move up and down or left and right to drive the pushing block 330 to move.

In this embodiment, the slider 360 can slide downward relative to the upper die holder 340, and the slider 360 abuts against the guiding inclined surface 333 of the pushing block 330, so that when the slider 360 moves in opposite directions, the pushing block 330 is driven to move horizontally toward the upper die plate 320.

The lower end of the slider 360 is formed with a guide slope 361 inclined upward toward a point of the push block 330, and the guide slope 361 is fitted to the guide slope 333 to better push the push block 330 to slide.

Fig. 13 is a schematic diagram of the connection of the fixed block 370 and the push block 330 according to the present utility model.

Referring to fig. 6 to 13, the push block 330 is slidably coupled to the lower die holder 350 in a horizontal direction so as to be able to approach and separate from the lower die plate 310; a fixed block 370 is also fixed on the lower die holder 350; the fixed block 370 is arranged on the side of the pushing block 330 facing away from the lower template 310; the fixed block 370 is provided with a sliding rod 380 extending horizontally, the sliding rod 380 is arranged on the fixed block 370 in a penetrating way and is connected to the sliding rod 380 in a sliding way, and one end of the sliding rod 380 is fixedly connected to the pushing block 330. The slide bar 380 is penetrated in the horizontal direction on the fixing block 370 so that the push block 330 slides in the horizontal direction.

In the present embodiment, an end of the sliding rod 380 facing away from the pushing block 330 protrudes radially outwards to form a protruding portion 381; the slide bar 380 is sleeved with an elastic piece (not shown in the figure); the two ends of the elastic member are respectively abutted against the protruding portion 381 and the fixing block 370, so as to drive the sliding rod 380 to slide away from the upper template. The elastic piece is a pressure spring, and the sliding rod 380 is driven to move by the elastic force of the pressure spring. In some embodiments, the elastic members are spring plates and other elastic members.

In this embodiment, a cavity 371 is formed at one end of the fixing block 370 facing away from the upper template; the elastic member is at least partially located in the cavity 371, and one end of the elastic member abuts against the cavity 371 and the other end abuts against the protrusion 381.

In this embodiment, the upper end surface of the lower template 310 includes a first plane 311, and a first inclined surface 312 bent upward from one end of the first plane 311 and extending; the lower end surface of the upper template 320 includes a second plane 321 and a second inclined surface 322; the second plane 321 is parallel and corresponds to the first plane 311, and the second inclined plane 322 is parallel and corresponds to the first inclined plane 312. The upper die plate 320 and the lower die plate 310 can move in opposite directions to drive the lower end surface of the upper die plate 320 to be close to the upper end surface of the lower die plate 310, and the main body portion 20 is clamped between the lower end surface of the upper die plate 320 and the upper end surface of the lower die holder 350, so that one end of the main body portion 20, which faces the first bending portion 21, is bent upwards to form a second bending portion 22. The second bending part 22 is bent to make the included angle between the lower side of the second bending part 22 and the main body part 20 greater than 180 degrees, so that the push block 330 can be conveniently moved towards the lower die plate 310 and the upper die plate 320, the push block 330 can drive the first bending part 21 to bend, the first bending part 21 can be bent towards one end of the second bending part 22 and pressed onto the second bending part 22, and the first bending part 21 and the second bending part 22 are pressed through the push block 330 and the second inclined plane 322, so that the full flattening of the stacked structure formed between the first bending part 21 and the second bending part 22 is effectively ensured.

Fig. 14 is a schematic view of a first process step of another embodiment of the bending process of the present utility model. Fig. 15 is a schematic diagram of a second process step of another embodiment of the bending process of the present utility model. Fig. 16 is a schematic diagram of a third process step of another embodiment of the bending process of the present utility model. Fig. 17 is a schematic diagram of a fourth process step of another embodiment of the bending process of the present utility model.

Referring to fig. 14 to 17, in the present embodiment, the first and fourth steps refer to the scheme in the embodiment of the upper bending process. The present embodiment differs from the previous embodiment in that:

In this embodiment, step two: the plate material is bent downwards to form a first bending part 21, and one end of the main body part 20, which faces the first bending part 21, is bent upwards to form a second bending part 22, and the two bending processes are in the same procedure.

Step three: the first bending portion 21 is bent to form a fitting section 211 and an extension section 212, the fitting section 211 is connected to and fitted on the second bending portion 22, and the extension section 212 is bent downwards from one end of the fitting section 211, which is opposite to the second bending portion 22, and extends.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and the like are to be construed broadly, and may be fixedly attached, detachably attached, or integrally formed, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances. In the description of the present specification, reference to the terms "some embodiments," "exemplary," and the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present application have been shown and described, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives and variations may be made in the above embodiments by those skilled in the art within the scope of the application, which is therefore intended to be covered by the appended claims and their equivalents.

Claims (10)

1. A bending apparatus, comprising:

The first bending die is used for stamping and bending the plate, so that the stamped plate comprises a main body part and a first bending part which bends downwards from one end of the main body part and extends along a straight line;

The second bending die comprises a lower die plate, an upper die plate and a pushing block; the upper template is positioned above the lower template, and the upper template and the lower template can move in opposite directions;

The upper end face of the lower die plate comprises a first plane and a first inclined plane which is bent upwards from one end of the first plane and extends; the lower end face of the upper template comprises a second plane and a second inclined plane; the second plane is parallel and corresponds to the first plane, and the second inclined plane is parallel and corresponds to the first inclined plane; when the upper template is close to the lower template, the main body part is clamped between the lower end face of the upper template and the upper end face of the lower template, so that the main body part is upwards bent towards one end of the first bending part to form a second bending part; the pushing block is positioned at one side of the lower die plate, provided with a first abutting surface, and is positioned below the upper die plate; the pushing block can move towards the lower die plate and the upper die plate, and is used for driving the first bending part to bend, and enabling the first bending part to bend towards one end of the second bending part and be pressed on the second bending part.

2. The bending apparatus according to claim 1, wherein an end of the first inclined surface facing away from the first plane is bent downward and extends to form a top abutment surface; a first pressing surface and a second pressing surface which is formed by bending downwards from the first pressing surface towards one end of the lower die plate and extending are formed on the upper end surface of the pushing block towards one end of the lower die plate; the first pressing surface corresponds to and is parallel to the second inclined surface, and the second pressing surface corresponds to and is parallel to the abutting surface; the pushing block can approach to the lower die plate, so that the first bending part is bent and attached to the first pressing surface and the second pressing surface of the pushing block, and the first bending part is bent to form an attaching section and an extending section; the attaching section is connected with and attached to the second bending part, and the extending section bends downwards and extends from one end of the attaching section, which is opposite to the second bending part.

3. Bending apparatus according to claim 2, wherein the second inclined surface is perpendicular to the abutment surface such that the abutment section and the extension section of the punched sheet material are perpendicular.

4. The bending apparatus of claim 2, further comprising an upper die base, a lower die base, and a slider; the upper die plate is fixed on the upper die holder, the lower die plate is fixed on the lower die holder, and the upper die holder can move towards and away from the lower die holder; the sliding block is connected to the upper die holder and can slide relative to the upper die holder; the sliding block is positioned on one side of the pushing block, which is opposite to the lower die plate, and is used for pushing the sliding block to slide horizontally towards the lower die plate.

5. The bending apparatus according to claim 4, wherein an end of the push block opposite to the lower die plate is formed with a downwardly inclined guide slope; the sliding block can slide downwards relative to the upper die holder, and the sliding block abuts against the guide inclined plane.

6. The bending apparatus according to claim 5, wherein a point of the slider at the lower end toward the push block is formed with an upwardly inclined guide slope, the guide slope being fitted to the guide slope.

7. The bending apparatus according to claim 4, wherein the push block is slidably connected to the lower die base in a horizontal direction so as to be capable of approaching and separating from the lower die plate; a fixed block is also fixed on the lower die holder; the fixed block is arranged on one side of the pushing block, which is away from the lower template; the fixed block is provided with a sliding rod extending horizontally, the sliding rod penetrates through the fixed block and is connected to the sliding rod in a sliding mode, and one end of the sliding rod is fixedly connected to the pushing block.

8. The bending apparatus according to claim 7, wherein an end of the slide bar facing away from the push block is formed with a projection projecting radially outwardly; an elastic piece is sleeved on the sliding rod; and two ends of the elastic piece are respectively abutted to the protruding part and the fixed block so as to drive the sliding rod to slide away from the upper template.

9. The bending apparatus according to claim 8, wherein a cavity is formed in an end of the fixed block facing away from the upper die plate; the elastic element is at least partially positioned in the concave cavity.

10. The bending apparatus according to claim 1, wherein an end of the second inclined surface facing away from the first plane exceeds the first inclined surface.