CN213317053U

CN213317053U - Negative angle forming structure

Info

Publication number: CN213317053U
Application number: CN202021650050.1U
Authority: CN
Inventors: 姚小春; 廖龙; 刘晓龙
Original assignee: Dongguan Zhongtai Mould Co ltd
Current assignee: Guangdong Zhongtai Industrial Technology Co ltd
Priority date: 2020-08-10
Filing date: 2020-08-10
Publication date: 2021-06-01
Anticipated expiration: 2030-08-10

Abstract

The utility model relates to a negative angle forming structure, which comprises an upper die base and a lower die base, wherein the surface of the lower die base close to the upper die base is provided with a central supporting block, a material pressing slider and a forming slider, the surface of the upper die base close to the lower die base is provided with a driving block, the negative angle forming structure also comprises a strip-shaped material pressing core and a material pressing cylinder structure, the material pressing core is positioned on the straight line formed by the material pressing slider and the central supporting block, one end of the material pressing core far away from the central supporting block is fixedly connected with the upper end of the material pressing slider, the material pressing slider is connected with the material pressing cylinder structure, so that the material pressing cylinder structure can drive the material pressing core to be close to the central supporting block to a material sheet connected with the central supporting block or far away from the central supporting block to the outside, the forming slider is positioned at one side of the connecting line of the central supporting block and the material pressing slider, the, the driving block can drive the forming slide block to be close to the connecting line.

Description

Negative angle forming structure

Technical Field

The utility model relates to the field of machining, especially, relate to a negative angle shaping structure.

Background

The forming angle of a common cold stamping die is larger than or equal to 90 degrees, and the negative angle forming is smaller than 90 degrees, so that the problems of difficult material removal and forming of products exist, the problems of difficult negative angle forming and difficult material removal are solved by adopting two double-slider structures which slide in opposite directions in the prior art, but the double-slider negative angle forming structure has requirements on the shape of the products, and partial products cannot be formed by using the double-slider negative angle forming structure.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a negative angle shaping structure can the shaping negative angle and conveniently takes off the material.

The negative angle forming mechanism comprises an upper die holder and a lower die holder, wherein a central supporting block, a pressing sliding block and a forming sliding block are arranged on the surface of the lower die holder close to the upper die holder, a driving block is arranged on the surface of the upper die holder close to the lower die holder, the negative angle forming mechanism further comprises a strip-shaped pressing core and a pressing air cylinder structure, the pressing core is positioned on a straight line formed by the pressing sliding block and the central supporting block, one end, far away from the central supporting block, of the pressing core is fixedly connected with the upper end of the pressing sliding block, the pressing sliding block is connected with the pressing air cylinder structure, so that the pressing air cylinder structure can drive the pressing core to be close to the central supporting block to a material sheet connected with the central supporting block or far away from the central supporting block to be completely separated from the outside, the forming sliding block is positioned on one side of a connecting line of the central supporting block and the pressing sliding block, the forming sliding block, a wedge structure is formed between the driving block and the forming sliding block, and the driving block can drive the forming sliding block to be close to the connecting line.

Furthermore, the upper surface of the lower die holder in the sliding stroke range of the forming slide block is provided with an inclined surface which is inclined relative to the advancing direction of the slide block, one side of the inclined surface, which is far away from the pressing core, is lower, and one side, which is close to the pressing core, is higher.

The edge supporting block is arranged on the connecting line and located between the pressing sliding block and the central supporting block, a through hole is formed in the part, facing the pressing core, of the edge supporting block, and the forming sliding block is located between the edge supporting block and the central supporting block.

The die further comprises a pressing core supporting strip, the bottom surface of the pressing core supporting strip is connected with the surface, close to the upper die base, of the lower die base, the top surface of the pressing core supporting strip is kept horizontal and extends along the straight line, and the top surface of the pressing core supporting strip is flush with the surface, close to the lower die base, of the pressing core.

Furthermore, the material pressing cylinder structure comprises two cylinders with opposite stroke directions, the two cylinders are horizontally arranged, the stroke directions are on a straight line formed by the connecting line, one cylinder piston faces the direction of the material pressing sliding block and is fixedly connected with the material pressing sliding block, and the other cylinder piston faces the direction far away from the material pressing sliding block and is connected with the lower die holder.

Has the advantages that:

the material pressing cylinder structure drives the material pressing slide block and the material pressing core to slide in place towards the direction of the central supporting block, the upper die base drives the stripper plate and the driving block to move downwards, the stripper plate presses the material sheet, the driving block drives the forming slide block to move towards the direction of the material pressing core to form a negative angle, the upper die base drives the stripper plate and the driving block to move upwards after the material pressing cylinder structure finishes, and the forming slide block and the material pressing slide block reset without influencing the taking out of a finished product.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

FIG. 1 is a front sectional view of the negative angle forming structure of the present invention;

FIG. 2 is a side sectional view of the negative angle forming structure of the present invention;

fig. 3 is a top sectional view of the negative angle molding structure of the present invention.

Detailed Description

The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.

The utility model discloses a structure for making tablet shaping negative angle, see figure 1, the utility model discloses a negative angle shaping structure includes mould and lower mould, wherein go up the mould and include upper die base 1, install the flitch 2 that takes off in upper die base 1 below, take off flitch 2 and adapt to product upper surface design, it takes off material slotted hole 21 to be equipped with on the flitch 2, just be provided with mould slotted hole 11 on the upper die base 1 to taking off material slotted hole 21, adopt to imbed mould slotted hole 11 and take off material slotted hole 21's stand and be connected both, make and take off flitch 2 and keep parallel and reciprocate relatively upper die base 1, be provided with nitrogen cylinder 12 as the air spring on upper die base 1, nitrogen cylinder 12 installs in upper die base 1, its piston top is pushed down and is taken off flitch 2 upper surfaces in order.

Referring to fig. 1, the lower die comprises a lower die base 7, referring to fig. 3, the lower die base 7 comprises a central support block 3 located in the middle of the upper surface of the lower die base 7, and two swaging sliders 4 capable of sliding along the long side direction of the lower die base 7, for convenience of introduction, the long side direction of the lower die base 7 is respectively taken as the left and right direction, the two swaging sliders 4 are respectively located in the left and right direction of the central support block 3, the three blocks are located on the same straight line parallel to the long side of the lower die base 7, referring to fig. 1, one surface of each swaging slider 4 far away from the central support block 3 is fixedly connected with a vertical connecting column 41, the top end of the connecting column 41 is flush with the swaging slider 4, the bottom end of the connecting column extends downwards to be connected with a swaging cylinder structure 42, the swaging cylinder structure 42 is composed of two cylinders with opposite stroke directions, the two cylinders are both horizontally arranged, the stroke direction is, the other cylinder piston faces the direction far away from the connecting column 41 and is fixedly connected with the lower die base 7, and the two cylinders are fixedly connected, so that the stroke of the material pressing cylinder structure 42 is increased.

Referring to fig. 1, a horizontally disposed strip-shaped pressing core 5 is connected to the top end of each pressing slider 4, one end of each pressing core 5 is fixedly connected to the pressing slider 4, the other end of each pressing core faces the central support block 3, a side support block 6 is arranged between each pressing slider 4 and the central support block 3, a through hole is formed in the side support block 6 at a position facing the pressing core 5, when the pressing slider 4 slides to a position far away from the central support block 3, one end of each pressing core 5 far away from the pressing slider 4 is arranged in the through hole in the side support block 6, a slotted hole or a platform for placing the pressing core 5 is respectively formed in the central support block 3 in the left-right direction, when the pressing slider 4 moves to a position close to the central support block 3, one end of each pressing core 5 facing the central support block 3 is inserted into the slotted hole in the central support block 3 or placed on the platform, so that the central support block 3 supports the pressing core, referring to fig. 3, a strip-shaped pressing core support strip 51 is arranged between the side support blocks 6 and the central support block 3, the bottom surface of the pressing core support strip 51 is connected with the upper surface of the lower die holder 7, and the top surface of the pressing core support strip 51 is horizontally extended along the advancing direction of the pressing core 5 and is flush with the lower surface of the pressing core 5, so that the pressing core 5 is supported between the side support blocks 6 and the central support block 3, the length and the width of the pressing core support strip are smaller than those of the pressing core 5, and the forming of a negative angle is not affected.

Referring to fig. 3, the lower die holder 7 is provided with two forming sliders 8 sliding along the short side direction of the lower die holder 7, the two forming sliders 8 are both arranged at the side of a connecting line formed by the material pressing slider 5 and the central supporting block 3, the two forming sliders 8 are respectively arranged between the two edge supporting blocks 6 and the central supporting block 3, referring to fig. 2, one surface of each forming slider 8 facing the material pressing core 5 is provided with a forming cutter block 81 protruding for forming a negative angle, the surface of each forming slider 8 far away from the material pressing core 5 is provided with an inclined plane design, the upper die holder 1 is provided with a driving block 9 facing the two forming sliders 8, the lower surface of each driving block 9 is provided with an inclined plane design opposite to the forming slider 8 to form an inclined wedge structure, and therefore, after the driving block 9 is connected with the forming sliders 8, the forming sliders 8 can be driven to slide towards the.

Referring to fig. 2, the upper surface of the lower die holder 7 in the sliding stroke range of the forming slide block 8 is arranged to be an inclined surface inclined relative to the traveling direction of the slide block, the inclined surface is lower at the side far away from the pressing core, and higher at the side close to the pressing core, so that the negative angle range capable of forming is larger, and the forming slide block 8 can automatically slide outwards when the driving block 9 leaves the surface of the forming slide block 8.

During operation, the pressing cylinder structure 42 drives the pressing slide block 4 and the pressing core 5 to slide in place towards the direction of the central supporting block 3, the upper die base 1 drives the stripper plate 2 and the driving block 9 to move downwards, the upper die base 1 continues to move downwards after the stripper plate 2 presses the material sheet, the stripper plate 2 starts to compress nitrogen gas of the nitrogen cylinder 12 to gradually press the material sheet, the driving block 9 is driven by the upper die base 1 to continue to move downwards, the forming slide block 8 is driven to move towards the pressing core 5, a negative angle is formed, the upper die base drives the stripper plate 5 and the driving block 9 to move upwards after the negative angle forming is completed, the forming slide block 8 and the pressing slide block 8 reset, and the taking-out of a finished product.

It should be finally noted that the above embodiments are only intended to illustrate the technical solution of the present invention and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced with other equivalents without departing from the spirit and scope of the technical solution of the present invention.

Claims

1. The utility model provides a negative angle shaping structure, includes upper die base (1) and die holder (7), its characterized in that: the surface of the lower die holder (7) close to the upper die holder (1) is provided with a central supporting block (3), a pressing sliding block (4) and a forming sliding block (8), the surface of the upper die holder (1) close to the lower die holder (7) is provided with a driving block (9), the die holder further comprises a strip-shaped pressing core (5) and a pressing cylinder structure (42), the pressing core (5) is positioned on a straight line formed by the pressing sliding block (4) and the central supporting block (3), one end of the pressing core (5) far away from the central supporting block (3) is fixedly connected with the upper end of the pressing sliding block (4), the pressing sliding block (4) is connected with the pressing cylinder structure (42), so that the pressing cylinder structure (42) can drive the pressing core (5) close to the central supporting block (3) to a material sheet connected with the central supporting block or far away from the central supporting block (3) to a material sheet completely separated from the outside, the forming sliding block (8) is positioned on one side of a connecting line of the, the forming sliding block (8) is provided with a convex forming cutter block (81) towards the direction of the connecting line, the driving block (9) is arranged at the position of the upper die holder (1) facing the forming sliding block (8), a wedge structure is formed between the driving block (9) and the forming sliding block (8), and the driving block (9) can drive the forming sliding block (8) to be close to the connecting line.

2. The negative angle molding structure according to claim 1, wherein: the upper surface of the lower die holder (7) in the sliding stroke range of the forming slide block (8) is arranged into an inclined surface which is inclined relative to the advancing direction of the slide block, one side of the inclined surface, which is far away from the pressing core, is lower, and one side, which is close to the pressing core, is higher.

3. The negative angle molding structure according to claim 1, wherein: the die also comprises a side supporting block (6), wherein the side supporting block (6) is arranged on the connecting line and is positioned between the material pressing sliding block (4) and the central supporting block (3), a through hole is formed in the part, facing the material pressing core (5), of the side supporting block (6), and the forming sliding block (8) is positioned between the side supporting block (6) and the central supporting block (3).

4. The negative angle molding structure according to claim 1, wherein: the die holder is characterized by further comprising a material pressing core supporting strip (51), the bottom surface of the material pressing core supporting strip (51) is connected with the surface, close to the upper die holder (1), of the lower die holder (7), the top surface of the material pressing core supporting strip (51) is kept horizontal and extends along the straight line, and the top surface of the material pressing core supporting strip (51) is flush with the surface, close to the lower die holder (7), of the material pressing core (5).

5. The negative angle molding structure according to claim 1, wherein: the material pressing cylinder structure (42) comprises two cylinders with opposite stroke directions, the two cylinders are horizontally arranged, the stroke directions are on a straight line formed by the connecting line, one cylinder piston faces the direction of the material pressing sliding block (4) and is fixedly connected with the material pressing sliding block (4), and the other cylinder piston faces the direction far away from the material pressing sliding block (4) and is connected with the lower die holder (7).