CN213530411U

CN213530411U - Buckle plate die

Info

Publication number: CN213530411U
Application number: CN202021980539.5U
Authority: CN
Inventors: 吕福增; 吕帅; 廖兴文; 杜君
Original assignee: Hebei Shisheng Metal Products Co ltd
Current assignee: Hebei Shisheng Metal Products Co ltd
Priority date: 2020-09-11
Filing date: 2020-09-11
Publication date: 2021-06-25
Anticipated expiration: 2030-09-11

Abstract

The utility model discloses a buckle mould. The middle part of the die is provided with a punching and shearing station, and the rear part of the die is provided with a cold bending station. The lower die comprises a lower die plate, a concave die plate, a positioning plate, a material returning plate and a material pushing device; the positioning plate is fixed on the rear side of the lower template and is provided with a lower workpiece outlet; the right side of the concave die plate is provided with a feeding hole, the rear side of the concave die plate is provided with an upper workpiece outlet, and the upper workpiece outlet and the lower workpiece outlet form a workpiece outlet together. The front part of the lower template is provided with a material pushing hole, the rear part of the lower template is provided with a notch, the notch is internally matched and provided with a material returning plate connected with a pressure spring of the lower fixed plate, and the material pushing device can realize the forward and backward movement of the material pushing plate in the material pushing hole under the action of a tension spring. The cold bending punching needle and the trimming punching needle of the upper die move up and down to realize punching and shearing of the punching and shearing station and cold bending of the cold bending station, and the upper die wedge iron is matched with the roller of the material pushing device to realize the back and forth movement of the material pushing plate. Adopt the utility model discloses, punching shear, punching press, the clod wash one shot forming of buckle, production efficiency improves one time, has eliminated the cost of transportation.

Description

Buckle plate die

Technical Field

The utility model discloses be applied to the manufacturing field, concretely relates to but mould of quick batch production buckle.

Background

FIG. 1 shows a pinch plate which is commonly used in adjustable support parts in the construction industry, and the pinch plate is simple in shape and is formed by punching. However, in the production process, blanking is needed firstly, the steel strip is punched and cut into a square semi-finished product, and then the blank is punched into the buckle plate. Although the production process is simple, two times of stamping and transportation are required, and the transportation is a process without increasing the production value. In order to save the cost, the utility model discloses with unloading and stamping forming design on a mould, with steel band blanking stamping forming once, not only practice thrift the cost of transportation, still become a punching press with twice punching press, practiced thrift the punching shear process cost.

Disclosure of Invention

The utility model provides a technical problem be: the buckle plate die is capable of achieving blanking and punch forming at one time and reducing production cost.

The utility model adopts the technical proposal that: the buckle plate die comprises an upper die and a lower die, wherein the upper die and the lower die are in guide pillar and guide sleeve matching sliding connection, punching and shearing stations are designed in the middle of the die, cold bending stations are designed at the rear part of the die, the distance between the two stations is not more than 8mm, a feed inlet of a raw material steel belt is designed on the right side of the die, and a discharge opening of a buckle plate product is designed on the rear side. The lower die comprises a lower backing plate, a lower fixing plate, a lower die plate, a concave die plate, a positioning plate, a material returning plate, a guide sleeve and a material pushing device which are fixedly connected from bottom to top; the guide sleeves are distributed at four corners of the die, penetrate through the concave die plate and the lower die plate and are fixedly connected with the lower fixing plate; the positioning plate is fixed on the rear side of the lower template and is provided with a lower workpiece outlet; the feeding port is arranged at the bottom of the right side of the concave die plate, a square opening is machined at the punching and shearing station and the cold bending station of the concave die plate, an upper workpiece outlet is machined at the rear part of the concave die plate, and the upper workpiece outlet and a lower workpiece outlet on the positioning plate form a workpiece outlet together. The front part of the lower template is provided with a material pushing hole, the rear part of the lower template is provided with a notch, a stripper plate is arranged in the notch in a matching way, and the stripper plate is connected with the lower fixed plate by a pressure spring in a space limited by the notch of the lower template. The pushing device comprises a pushing plate, a guide seat, a roller seat, a tension spring and a roller; the guide seat is fixedly arranged at the front part of the lower backing plate, and the top of the guide seat is of a groove-shaped structure; a roller seat is placed in the groove-shaped structure, a material pushing plate is fixedly connected to the rear end of the roller seat, and the material pushing plate is matched with a material pushing hole in the front of the lower template; the top of the roller seat is provided with a roller, and the tension spring is fixed at the front end of the roller seat and the front side of the concave template.

The upper die comprises an upper padding plate, an upper fixing plate, a guide plate, a cold bending punching needle, a trimming punching needle, a guide column and a wedge iron, wherein the upper padding plate, the upper fixing plate and the guide plate are fixedly connected from top to bottom, and the cold bending punching needle, the trimming punching needle, the guide column and the wedge iron are arranged on the upper fixing plate. The guide pillar, the cold bending punching needle and the trimming punching needle respectively penetrate through respective guide holes in the guide plate to be fixedly connected with the upper fixing plate fastener, the trimming punching needle is arranged at a punching and shearing station of the guide plate, the cold bending punching needle is arranged at a cold bending station of the guide plate, the wedge iron is fixed on the lower surface of the upper base plate and positioned at the front part of the upper fixing plate, and the wedge iron is matched with a roller of the material pushing device.

Furthermore, a boss is designed in the middle of the notch of the lower template, and the boss protrudes into the notch to form an inverted convex structure with small middle position size and large upper and lower position size; the upper surface of the boss is flush with the material pushing hole, so that a semi-finished product of the punching and shearing station can be conveniently pushed into the cold bending station. The lower surface of the material returning plate is matched with a step at the bottom of the material returning plate, so that the jacking distance of the material returning plate is limited.

Furthermore, a blind hole for placing the pressure spring is processed at the bottom of the stripper plate, and a through hole or a blind hole for placing the pressure spring is also processed at the corresponding position of the lower fixing plate, so that the stress direction of the pressure spring is ensured and the pressure spring works smoothly.

Furthermore, in order to facilitate the positioning of the steel strip, a positioning block is designed at the tail end of the feeding hole and is fixedly arranged below the concave die plate and on the left side of the opening of the punching and shearing station.

Furthermore, a circular truncated cone protruding head is arranged at the center of the lower end of the trimming punch needle and matched with the punched hole in the lower template so as to punch a central hole in the pinch plate.

Furthermore, the inclination of the wedge iron fixed on the upper backing plate is determined by the downward displacement of the upper die and the discharging and pushing stroke of the stripper plate, and is the key for ensuring the reasonable and smooth operation of the die.

The utility model discloses the beneficial effect who gains is: adopt the utility model discloses, punching shear, punching press, the clod wash one shot forming of buckle, production efficiency improves one time, has eliminated the cost of transportation, has reduced the human cost for the manufacturing cost greatly reduced of buckle.

Drawings

FIG. 1 is a diagram of a gusset product;

FIG. 2 is a schematic view of the structure of the present invention before stamping;

FIG. 3 is a top view of the lower die;

FIG. 4 is a left side view A-A of FIG. 3;

FIG. 5 is a schematic view of the stamping state of FIG. 2;

wherein: 1-upper backing plate, 2-upper fixing plate, 3-guide plate, 4-cold bending punching needle, 5-concave template, 6-buckle plate, 7-positioning plate, 8-lower fixing plate, 9-lower backing plate, 10-pressure spring, 11-stripper plate, 12-steel band, 13-lower template, 14-material pushing plate, 15-guide seat, 16-roller seat, 17-tension spring, 18-roller, 19-wedge iron, 20-guide column, 21-trimming punching needle, 22-part outlet, 23-semi-finished product, 24-guide sleeve, 25-positioning block and 26-blanking hole.

Detailed Description

The buckle plate die of the present invention will be described in detail with reference to fig. 2 to 5, wherein the upper, lower, top and bottom positions are the upper and lower positions shown in fig. 2, 4 and 5, the left and right positions shown in fig. 4, and the left and right positions shown in fig. 2 and 5.

The pinch plate product of the embodiment is punched by a steel belt with the thickness of 5mm and the width of 40mm, the length of a punched, sheared and blanked semi-finished product is 63mm, the middle aperture phi is 13mm, the plane size of the finished pinch plate is 40 multiplied by 52mm, and the height of the finished pinch plate is 15 mm.

As shown in fig. 2, fig. 3 and fig. 4, the utility model discloses the buckle mould comprises last mould and lower mould, and last lower mould adopts the guide pillar 20 of last mould and the guide pin bushing 24 of lower mould to connect, and guide pillar 20 can follow guide pin bushing 24 and reciprocate, accomplishes and goes up the mould punching press and lift. When the buckle plate is produced, the steel strip 12 is fed from a feed inlet at the right side of the die, is punched and sheared at a punching and shearing station, is subjected to cold bending at a cold bending station to form a product buckle plate 6, and is fed out from a workpiece outlet 22 at the rear side of the die.

The upper die comprises an upper backing plate 1, an upper fixing plate 2, a guide plate 3, a cold bending punching needle 4, a trimming punching needle 21, a wedge 19 and a guide pillar 20. The upper padding plate 1, the upper fixing plate 2 and the guide plate 3 are fixedly connected by fasteners from top to bottom, and the guide pillar 20, the cold bending punching needle 4 and the trimming punching needle 21 respectively penetrate through respective guide holes on the guide plate 3 and are fixedly connected with the upper fixing plate 2 by the fasteners so as to be convenient to replace. The guide holes on the guide plate 3 are used for restraining the guide posts 20, the cold bending punching needles 4 and the trimming punching needles 21 and preventing the guide posts from being inclined, deformed and the like. Four guide posts 20 are arranged at four corners of the guide plate 3 and are matched with guide sleeves 24 of the lower die to ensure that the upper die vertically moves up and down. The trimming punch needle 21 is square and 50 x 63mm in size, is arranged at the center of the guide plate 3, namely is arranged at a punching and shearing station, and is provided with a circular truncated cone raised head at the center of the lower end of the trimming punch needle 21, and the circular truncated cone raised head is matched with the punching hole of the lower template 13 and is used for punching a center hole of the buckle plate. At the punching and shearing station, the trimming punching needle 21 is matched with the lower template 13 of the lower die to complete the punching and shearing of the steel belt and the cold punching operation of the central hole. The cold bending punch needle 4 is square, the size of the cold bending punch needle is 40 multiplied by 42mm, the cold bending punch needle is arranged on the rear side of the trimming punch needle 21, namely the cold bending punch needle is arranged at a cold bending station, the distance between the cold bending punch needle and the trimming punch needle 21 is not more than 8mm, the cold bending punch needle 4 is matched with a stripper plate 11 and a lower template 13 of a lower die, and the cold bending, the part discharging and other operations of the pinch plate 6 are completed. The wedge iron 19 is welded or bolted on the front part of the lower surface of the upper backing plate 1, is matched with the roller 18 of the lower die and is matched with the tension spring 17 to complete the feeding and retracting movement of the material pushing plate 14, thereby realizing the feeding of a semi-finished product 23 and the discharging operation of a finished product buckling plate 6, and the inclination of the wedge iron 19 is determined by the pushing amount and the discharging pushing distance of the upper die.

The lower die comprises a lower backing plate 9, a lower fixing plate 8, a positioning plate 7, a concave die plate 5, a lower die plate 13, a stripper plate 11, a guide sleeve 24 and a material pushing device, wherein the lower backing plate 9, the lower fixing plate 8, the lower die plate 13 and the concave die plate 5 are fixedly connected by fasteners from bottom to top. The guide sleeves 24 are matched with the guide posts 20 of the upper die, distributed at four corners of the lower die and corresponding to the positions of the guide posts 20, and the guide sleeves 24 penetrate through the concave die plate 5 and the lower die plate 13 and are fixed on the lower fixing plate 8. A feed inlet is formed in the bottom of the right side of the concave template 5, the size of the feed inlet is 40.5 multiplied by 10.5mm, the feed inlet and the upper surface of the lower template 13 limit the freedom degrees of the steel strip 12 in the upper direction, the lower direction, the front direction and the rear direction, and the steel strip 12 is limited to move leftwards and feed under the action of a feeding device. Square openings which facilitate the up-and-down movement of the trimming punching needle 21 and the cold bending punching needle 4 are processed at the middle part and the rear part of the concave template 5, see the attached figure 3. The end of the steel strip 12 is provided with a positioning block 25, and the positioning block 25 is fixedly arranged below the cavity plate 5 and at the side of the opening of the trimming punch needle 21 and is used for positioning the steel strip, as shown in fig. 3 and 4. A positioning plate 7 is fixedly installed at the rear side of the lower template 13, and the positioning plate 7 is used for positioning a semi-finished product 23, as shown in fig. 2. The upper surface of the middle of the positioning plate 7 is provided with a lower workpiece outlet, the semi-finished product 23 is formed into a buckle plate 6 after cold bending, the width of the buckle plate 6 is 52mm and is smaller than the width 63mm of the semi-finished product 23, see the attached drawing 4, therefore, the parts 5-6mm on two sides of the lower workpiece outlet of the positioning plate 7 play a role in positioning the semi-finished product 23. As can be seen from the attached figure 4, the height of the pinch plate 6 which is lifted by the stripper plate 11 and ready to be ejected is 15mm, and is higher than the combination surface of the positioning plate 7 and the cavity plate 5, so that an upper ejection port is processed on the bottom surface of the rear part of the cavity plate 5, and the upper ejection port of the cavity plate 5 and the lower ejection port of the positioning plate 7 form an ejection port 22.

The pushing device comprises a pushing plate 14, a guide seat 15, a roller seat 16, a tension spring 17 and a roller 18. The guide seat 15 is fixedly arranged at the front part of the lower cushion plate 9, and the top part of the guide seat is of a groove-shaped structure. The roller mount 16 is placed in a channel-like structure above the guide mount 15, which defines the degree of freedom in the left-right direction of the roller mount 16, and the roller mount 16 is slidable back and forth in the channel. The roller 18 is mounted on top of the roller seat 16 and cooperates with the wedge 19 of the upper die. The rear end of the roller seat 16 is fixedly connected with a material pushing plate 14, the material pushing plate 14 is a flat plate, the section size is 5 multiplied by 50mm, and the material pushing plate can move back and forth in a material pushing hole in the lower template 13. A tension spring 17 is fixedly arranged at the front end of the roller seat 16 and the front side of the concave template 5. When the upper die moves down and is stamped, the wedge iron 19 enables the roller seat 16 to move forward rapidly, the roller seat 16 drives the material pushing plate 14 to move forward, and meanwhile, the tension spring 17 is stretched. When the upper die moves upwards, the tension of the tension spring 17 enables the roller seat 16 to rapidly move backwards, and meanwhile, the material pushing plate 14 is driven to move backwards, so that the semi-finished product 12 is fed into a cold bending station, and meanwhile, the buckle plate 6 which is subjected to cold bending is pushed out of the workpiece outlet 22.

The front side of the middle part of the lower template 13 is provided with a material pushing hole matched with the material pushing plate 14, and the material pushing hole and the lower surface of the concave template 5 form a channel for the material pushing plate 14 to move in the front-back direction. A notch is designed at the rear part of the lower template 13, a boss is designed in the middle of the notch, and the boss protrudes into the notch to form an inverted 'convex' structure with small size at the middle position and large size at the upper and lower positions of the notch, as shown in the attached figure 4. The upper surface of the boss is flush with the material pushing hole, so that the semi-finished product of the punching and shearing station can be conveniently and smoothly sent to the cold bending station. The lower surface of the boss is used for limiting the ascending of the stripper plate 11. The material returning plate 11 is installed in the notch in a matched mode, the bottom of the material returning plate 11 is provided with a step, the upper surface of the step is matched with the lower surface of the boss, and the jacking height of the material returning plate 11 is limited. The bottom surface of the stripper plate 11 is provided with a blind hole for placing the pressure spring 10, a through hole or a blind hole for placing the pressure spring 10 is also processed at the corresponding position of the lower fixing plate 8, and the stripper plate 11 is connected with the pressure spring of the lower fixing plate 8 in a space limited by the notch of the lower template 13. When the upper die moves downwards for cold bending operation, the stripper plate 11 presses the pressure spring 10 downwards, after the cold bending operation is completed, the upper die moves upwards, the pressure spring 10 bounces, the stripper plate 11 moves upwards, the pinch plate 6 is ejected upwards, and preparation is made for the ejection outlet 22. And a positioning plate 7 is fixedly arranged at the rear side of the lower template 13, and the positioning plate 7 can be used for positioning the semi-finished product 23 and reinforcing the notch of the lower template 13 to prevent the deformation of the notch of the lower template 13. And a punched hole is processed in the center of the punching and shearing station of the lower template 13, and the punched hole is matched with the trimming punching needle 21 to cold punch a central hole of phi 13 of the semi-finished product. Blanking holes 26 are formed in the positions of the lower back plate 9 and the lower fixing plate 8 corresponding to the punched holes, so that the punched scrap can be dropped and guided into the scrap frame.

Before the die is used, a guide post 20 of an upper die is inserted into a guide sleeve 24 of a lower die to be matched and placed on a working platform of a punching machine, the upper working platform of the punching machine is fixedly connected with a fastening piece of an upper backing plate 1, and the lower working platform is fixedly connected with a fastening piece of a lower backing plate 9. And adjusting the up-down stroke of the punching machine to enable the highest point of the stroke of the punching machine to be matched with the highest point of the upward movement of the upper die, and the lowest point of the stroke of the punching machine to be matched with the lowest point of the upward punching of the upper die. When the upper die is lifted, as shown in the attached

drawings

2 and 4, the material pushing device moves backwards by the tension spring 17, the rear end of the material pushing plate 14 is located at the punching and shearing station, the steel strip 12 is fed from the right side feeding hole, the steel strip 12 stops when contacting the positioning block 25, and the steel strip is fed into the punching and shearing station and is located at the upper part of the material pushing plate 14. When the upper die is pressed downwards, as shown in the attached drawing 5, the wedge 19 presses the roller 18 downwards, so that the pushing device drives the material pushing plate 14 to move forwards quickly, namely the material pushing plate 14 exits the punching and shearing station, the trimming punching needle 21 moves downwards at the punching and shearing station to complete punching and shearing by matching with the lower die plate 13, and the punched and sheared square stock falls to the upper surface of the punching and shearing station of the lower die plate 13, namely the surface of the material pushing hole, and is flush with the upper surface of the notch boss. The trimming punch needle 21 continues to move downwards, and when the trimming punch needle moves downwards to the lowest point, the circular truncated cone protruding head of the trimming punch needle 21 is matched with the punching hole of the lower template 13 to punch a central hole of the semi-finished product. And then the upper die moves upwards, the tension spring 17 enables the pushing device to move backwards, the pushing plate 14 pushes the semi-finished product 23 of the punching and shearing station into the cold bending station, and the semi-finished product 23 is positioned by the positioning plate 7. And the upper die moves downwards again, in the cold bending station, the cold bending punching needle 4 pushes down the semi-finished product 23 and the stripper plate 11, the stripper plate 11 moves downwards to compress the pressure spring 10, and the cold bending punching needle 4, the lower die plate 13 and the stripper plate 11 act together to move down the semi-finished product 23 to be cold-bent into the pinch plate 6. When the upper die moves upwards again, in the cold bending station, the pressure spring 10 jacks the stripper plate 11, the stripper plate 11 jacks the buckle plate 6, meanwhile, the stripper plate 14 pushes the semi-finished product 23 of the punching and shearing station into the cold bending station, and the buckle plate 6 of the cold bending station is pushed out from the workpiece outlet 22 at the rear side by the semi-finished product 23.

When the upper die moves downwards, the pushing device moves forwards, the trimming punching needle 21 completes punching and shearing and punching at a punching and shearing station, and the cold bending punching needle 4 completes cold bending at a cold bending station. When the upper die moves upwards, the trimming punching needle 21 and the cold bending punching needle 4 move upwards, the material pushing device moves backwards, the steel strip 12 is sent to the punching and shearing station by the material feeding device, the semi-finished product 23 is pushed into the cold bending station by the material pushing plate 14, and the pinch plate 6 is pushed out from the workpiece outlet 22 at the back by the semi-finished product 23. The production of the gusset plate is completed by the up-and-down stroke of the punching machine. Compare with the process of punching press after punching shear earlier of earlier stage, adopt the utility model discloses, punching shear, punching press, the clod wash one shot forming of buckle have reduced a stroke, have saved an operative employee, have eliminated the transportation of punching press after punching shear earlier simultaneously, have eliminated the freight. Therefore, adopt the utility model discloses, production efficiency improves one time, has eliminated the cost of transportation, has reduced the human cost for the manufacturing cost greatly reduced of buckle.

Claims

1. The utility model provides a buckle mould, includes mould and lower mould, goes up the lower mould and adopts guide pillar (20) and guide pin bushing (24) cooperation sliding connection, its characterized in that: a punching and shearing station is designed in the middle of the die, a cold bending station is designed at the rear part of the die, a feeding hole is designed at the right side of the die, and a workpiece outlet (22) is designed at the rear side; the lower die comprises a lower backing plate (9), a lower fixing plate (8), a positioning plate (7), a concave die plate (5), a lower die plate (13), a stripper plate (11), a guide sleeve (24) and a material pushing device; the lower backing plate (9), the lower fixing plate (8), the lower template (13) and the concave template (5) are fixedly connected from bottom to top; the guide sleeve (24) penetrates through the concave template (5) and the lower template (13) and is fixed on the lower fixing plate (8); the positioning plate (7) is fixed on the rear side of the lower template (13) and is provided with a lower workpiece outlet; the feeding hole is arranged at the bottom of the right side of the concave template (5), a square opening is machined at a punching and shearing station and a cold bending station of the concave template (5), an upper workpiece outlet is machined at the rear part of the concave template (5), and the upper workpiece outlet and the lower workpiece outlet form a workpiece outlet (22) together; the front part of the lower template (13) is processed with a material pushing hole, the rear part of the lower template is designed with a notch, a stripper plate (11) is arranged in the notch in a matching way, and the stripper plate (11) is connected with the lower fixing plate (8) by a pressure spring (10) in a space limited by the notch of the lower template (13); the pushing device comprises a pushing plate (14), a guide seat (15), a roller seat (16), a tension spring (17) and a roller (18); the top of the guide seat (15) is of a groove-shaped structure and is fixedly arranged at the front part of the lower backing plate (9); a roller seat (16) is placed in the groove-shaped structure, a material pushing plate (14) is fixedly connected to the rear end of the roller seat (16), and the material pushing plate (14) is matched with a material pushing hole; the roller (18) is arranged at the top of the roller seat (16), and the tension spring (17) is fixed at the front end of the roller seat (16) and the front side of the concave template (5).

2. The gusset plate die of claim 1, wherein: the upper die comprises an upper base plate (1), an upper fixing plate (2), a guide plate (3), a cold bending punching needle (4), a trimming punching needle (21), a wedge (19) and a guide pillar (20), wherein the upper base plate (1), the upper fixing plate (2) and the guide plate (3) are fixedly connected from top to bottom, the guide pillar (20), the cold bending punching needle (4) and the trimming punching needle (21) respectively penetrate through respective guide holes in the guide plate (3) to be fixedly connected with fasteners of the upper fixing plate (2), the trimming punching needle (21) is arranged at a punching and shearing station of the guide plate (3), the cold bending punching needle (4) is arranged at the cold bending station of the guide plate (3), and the wedge (19) is fixed on the lower surface of the upper base plate (1) and located in front of the upper fixing plate (2).

3. The gusset plate die of claim 1, wherein: a boss is designed in the middle of the notch, and the boss protrudes into the notch to form an inverted convex structure with small middle position size and large upper and lower position size; the upper surface of the boss is flush with the material pushing hole, and the lower surface of the boss is matched with a step at the bottom of the stripper plate (11).

4. The gusset plate die of claim 1, wherein: the bottom of the stripper plate (11) is provided with a blind hole for placing a pressure spring (10), and a through hole or a blind hole for placing the pressure spring (10) is also formed in the corresponding position of the lower fixing plate (8).

5. The gusset plate die of claim 1, wherein: a positioning block (25) is designed at the end of the feeding hole, and the positioning block (25) is fixedly installed below the concave die plate (5) and on the left side of an opening of the punching and shearing station.

6. The gusset plate die of claim 2, wherein: the center of the lower end of the trimming punch needle (21) is provided with a circular truncated cone protruding head which is matched with the punched hole on the lower template (13).

7. The gusset plate die of claim 2, wherein: the inclination of the wedge iron (19) is determined by the downward displacement of the upper die and the discharging and pushing stroke of the stripper plate (11).