Mould for scaffold fastener production

Abstract

The utility model discloses a mold for scaffold fastener production, and relates to the technical field of molds. The mold for scaffold fastener production comprises a fastener forging table, a lower mold and an upper mold. And the fastener limiting assembly comprises a second hydraulic rod, the output end of the second hydraulic rod is fixedly connected with a movable block, the upper end of the movable block is fixedly connected with two connecting plates, the interior of the movable block is rotationally connected with a fastener pressing block, and the lower end of the upper die is fixedly connected with a punching head. The scaffold fastener can be conveniently positioned, the end, close to the rotating rod, of the scaffold fastener can conveniently rotate in the forging and pressing process of the scaffold fastener, it can be guaranteed that the fastener is evenly stressed in the forging and pressing process, devices in a mold and the fastener are protected, and the service life of the mold and the fastener is prolonged; and the fixed and rotatable structure is beneficial to keeping the stability of the fastener in the forging and pressing process, so that the forging and pressing precision and the quality of the fastener are improved.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, and in particular to a mold for producing scaffold fasteners. Background Technology

[0002] Coupler-type steel pipe scaffolding refers to scaffolding and support frames constructed for building construction, consisting of couplers and steel pipes, etc., and bearing loads. Couplers are fastened with bolts. Commonly used coupler-type steel pipe scaffolding in China is made of cast iron. Coupler-type steel pipe scaffolding systems are required to have few parts, be easy to install, and easy to disassemble. Die forging refers to heating metal to a liquid or softened state, then placing it in a die, and forming it in one go through the closing and closing of the upper and lower dies. Sometimes multiple steps are required. Chinese utility model patent, authorized announcement number "CN208131899U", discloses a durable and long-lasting scaffolding coupler forging die, including a workbench and a lower die mounting base. The upper end of the workbench is fixedly connected to the lower die mounting base, and the upper end of the workbench is provided with a support. The lower end of the support is fixedly connected to a cylinder, the output end of the cylinder is fixedly connected to an upper die mounting base, and the lower end of the upper die mounting base is fixedly connected to an upper die.

[0003] The above technical solution overcomes the shortcomings of the prior art. It is reasonably designed and has a compact structure. During the die forging process, it can reduce the pressure during the closing process of the upper and lower dies, ensuring the quality of the forged products and protecting the die and die mounting base to reduce damage. However, the above technical solution still has certain defects. The fastener is straight before forging and becomes curved after forging. During this process, the fastener will bend. The bending process may cause the position of the fastener in the die to change. The device does not limit the fastener. Bending may make it difficult to accurately position the fastener, increasing the production difficulty and affecting the forging accuracy and product quality. Therefore, this utility model proposes a new solution. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a mold for the production of scaffolding fasteners. This mold can solve the problem that the fastener is straight before forging and becomes curved after forging. During this process, the fastener will bend, and the bending process may cause the position of the fastener in the mold to change. The device does not limit the fastener, and the bending may make it difficult to accurately position the fastener, increase the production difficulty, and thus affect the forging accuracy and product quality.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a mold for producing scaffold fasteners, comprising a fastener forging table, a lower mold, and an upper mold;

[0006] The fastener limiting assembly is set on the upper mold. The fastener limiting assembly includes a second hydraulic rod, which is fixedly connected to the inside of the upper mold. A movable block is fixedly connected to the output end of the second hydraulic rod. Two connecting plates are fixedly connected to the upper end of the movable block. Both connecting plates are slidably connected to the upper mold.

[0007] The movable block is internally connected to a fastener block. Slide grooves are provided on both the left and right sides of the movable block. Fastener block connecting blocks are fixedly connected to both the left and right sides of the fastener block. The slide grooves and fastener block connecting blocks are arc-shaped. The upper end of the fastener block is arc-shaped, and the lower end of the fastener block is flat.

[0008] A punching head is fixedly connected to the lower end of the upper mold.

[0009] Preferably, the fastener limiting assembly further includes a rotating rod, which is rotatably connected to the inside of the lower mold, and the surface of the lower mold is provided with a stamping groove adapted to the stamping head;

[0010] The surface of the rotating rod has a horizontal groove, and two fastener limit blocks are fixedly connected to the surface of the groove. Scaffolding fasteners are installed inside the lower mold.

[0011] Preferably, a rotating shaft is rotatably connected to the opening of the stamping groove.

[0012] Preferably, the rotating rod rotates through the lower mold, a connecting block is fixedly connected to the left end of the rotating rod, and two limiting plates are fixedly connected to the left end of the lower mold;

[0013] A torsion spring is fitted onto the surface of the rotating rod, and the left and right sides of the torsion spring are fixedly connected to the lower mold and the rotating rod.

[0014] Preferably, a fixed bracket is fixedly connected to the upper end of the fastener forging table, a first hydraulic rod is fixedly connected inside the fixed bracket, and an upper mold connecting seat is fixedly connected to the output end of the first hydraulic rod.

[0015] Four connecting rods are fixedly connected to the upper end of the upper mold connecting seat, and all four connecting rods are slidably connected to the fixed bracket.

[0016] Preferably, two sliders are fixedly connected to the upper end of the upper mold, and both sliders are slidably connected to the upper mold connecting seat;

[0017] The upper mold connecting seat has two fixing bolts in its internal threaded connection, and the two sliders are fixed to the upper mold connecting seat by the two fixing bolts.

[0018] Preferably, both sliders are T-shaped.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. This mold for producing scaffold couplers, through the design of a rotating rod, coupler limiting block, movable block, and coupler pressing block, facilitates the positioning of the scaffold couplers. It also facilitates the rotation of the end of the scaffold coupler near the rotating rod during forging, ensuring a smooth transition during the forging process. This allows the front side of the scaffold coupler to better fit against the inner wall of the stamping groove, ensuring uniform stress on the coupler during forging and preventing defects such as cracks and deformation. This improves forging quality, protects the mold and internal components of the coupler from damage due to excessive impact, and extends the service life of the mold and coupler. The fixed yet rotatable structure helps maintain the stability of the coupler during forging, thereby improving forging accuracy and coupler quality. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0022] Figure 1 This is a schematic diagram of a mold structure for producing scaffolding fasteners according to the present invention;

[0023] Figure 2 This is a schematic diagram of the fixing bracket of this utility model;

[0024] Figure 3 This is a schematic diagram of the slider of this utility model;

[0025] Figure 4 This is a schematic diagram of the lower mold of this utility model;

[0026] Figure 5 This is a schematic diagram of the movable block of this utility model;

[0027] Figure 6 This is a schematic diagram of the fastener pressure block of this utility model;

[0028] Figure 7 This is a schematic diagram of the slide groove of this utility model;

[0029] Figure 8 This is a schematic diagram of the rotating rod of this utility model;

[0030] Figure 9 This utility model Figure 4 Enlarged view of point A in the middle;

[0031] Figure 10 This utility model Figure 4 Enlarged view of point B in the middle;

[0032] Figure 11 This is a schematic diagram of the rotating shaft of this utility model.

[0033] Reference numerals in the attached drawings: 1. Fastener forging table; 2. Fixed bracket; 3. First hydraulic rod; 4. Connecting rod; 5. Upper mold connecting seat; 6. Upper mold; 7. Sliding block; 8. Fixing bolt; 9. Punching head; 10. Second hydraulic rod; 11. Movable block; 12. Fastener pressure block; 13. Connecting plate; 14. Lower mold; 15. Punching groove; 16. Rotating rod; 17. Fastener limiting block; 18. Connecting block; 19. Limiting plate; 20. Torsion spring; 21. Rotating shaft; 22. Scaffold fastener; 23. Slide groove; 24. Pressure block connecting block. Detailed Implementation

[0034] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0035] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0036] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0037] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0038] Please see Figure 1-11This utility model provides a technical solution: a mold for producing scaffold fasteners, including a fastener forging table 1, a lower mold 14 and an upper mold 6, and a fastener limiting component. The fastener limiting component is disposed on the upper mold 6 and includes a second hydraulic rod 10, which is fixedly connected to the inside of the upper mold 6. A movable block 11 is fixedly connected to the output end of the second hydraulic rod 10. Two connecting plates 13 are fixedly connected to the upper end of the movable block 11, and both connecting plates 13 are slidably connected to the upper mold 6. A fastener pressing block 12 is rotatably connected inside the movable block 11. Slide grooves 23 are provided on both the left and right sides of the movable block 11. Pressing block connecting blocks 24 are fixedly connected to both the left and right sides of the fastener pressing block 12. The slide grooves 23 and pressing block connecting blocks 24 are both arc-shaped. The upper end of the fastener pressing block 12 is arc-shaped, and the lower end of the fastener pressing block 12 is flat. A punch head 9 is fixedly connected to the lower end of the upper mold 6.

[0039] The fastener limiting assembly also includes a rotating rod 16, which is rotatably connected inside the lower mold 14. The surface of the lower mold 14 is provided with a stamping groove 15 that is adapted to the stamping head 9. The surface of the rotating rod 16 is provided with a horizontal groove. Two fastener limiting blocks 17 are fixedly connected to the surface of the groove. Scaffolding fasteners 22 are provided inside the lower mold 14.

[0040] A rotating shaft 21 is rotatably connected to the opening of the stamping groove 15.

[0041] The rotating rod 16 rotates through the lower mold 14. A connecting block 18 is fixedly connected to the left end of the rotating rod 16. Two limiting plates 19 are fixedly connected to the left end of the lower mold 14. A torsion spring 20 is sleeved on the surface of the rotating rod 16. The left and right sides of the torsion spring 20 are fixedly connected to the lower mold 14 and the rotating rod 16.

[0042] A fixed bracket 2 is fixedly connected to the upper end of the fastener forging table 1. A first hydraulic rod 3 is fixedly connected inside the fixed bracket 2. An upper mold connecting seat 5 is fixedly connected to the output end of the first hydraulic rod 3. Four connecting rods 4 are fixedly connected to the upper end of the upper mold connecting seat 5. All four connecting rods 4 are slidably connected to the fixed bracket 2.

[0043] Two sliders 7 are fixedly connected to the upper end of the upper mold 6. Both sliders 7 are slidably connected to the upper mold connecting seat 5. Two fixing bolts 8 are internally threaded to the upper mold connecting seat 5. The two sliders 7 are fixed to the upper mold connecting seat 5 by the two fixing bolts 8.

[0044] Both sliders 7 are T-shaped.

[0045] When using this device, firstly, two positioning holes are drilled on the surface of the scaffold coupler 22 that needs to be forged. Then, the scaffold coupler 22 is annealed to facilitate easy shaping during the forging process. The annealed scaffold coupler 22 is placed on the lower mold 14, and the positioning holes of the scaffold coupler 22 are engaged with the two coupler limiting blocks 17. The two coupler limiting blocks 17 limit the two positioning holes. The first hydraulic rod 3 is then extended, causing the upper mold connecting seat 5 to descend. The upper mold connecting seat 5 drives the slider 7 and the upper mold 6. As the upper mold 6 descends, the stamping head 9 and the second hydraulic rod 10 descend. The second hydraulic rod 10 then descends, causing the movable block 11 and the fastener block 12 to descend. When the fastener block 12 contacts the scaffold fastener 22, the first hydraulic rod 3 continues to extend, while the second hydraulic rod 10 simultaneously shortens. The shortening speed of the second hydraulic rod 10 is the same as the extension speed of the first hydraulic rod 3, ensuring that the fastener block 12 remains in contact with the scaffold fastener 22 and limits its movement. When the stamping head 9 contacts the scaffold fastener 22, it facilitates the stamping and shaping of the scaffold fastener 22.

[0046] When the stamping head 9 applies pressure to the scaffold coupler 22, forcing it into the stamping groove 15, the rotating rod 16, the coupler limiting block 17, and the rotating shaft 21 facilitate the bending of the scaffold coupler 22 on the surfaces of the rotating shaft 21 and the rotating rod 16. When the scaffold coupler 22 bends, it moves on the surface of the rotating shaft 21. The rotating shaft 21 helps reduce the resistance of the scaffold coupler 22 as it moves on the surface of the lower die 14 due to bending, and also reduces the friction between the scaffold coupler 22 and the lower die 14. The scaffolding coupler 22 is designed to fit snugly against the inner wall of the stamping groove 15. The pivot 21 supports the scaffolding coupler 22 in the lower die 14, ensuring its stability during forging. It also acts as a guide, allowing the scaffolding coupler 22 to move along a predetermined path. As a rolling bearing, the pivot 21 significantly reduces friction between the lower die 14 and the scaffolding coupler 22, reducing energy consumption. It also reduces wear on the lower die 14, extending its service life. The pivot 21 helps improve the precision and surface quality of the forged parts, while reducing resistance during forging and increasing production efficiency.

[0047] Simultaneously, the arrangement of the rotating rod 16, the fastener limiting block 17, and the fastener pressing block 12 ensures that, during the bending process, the scaffold fastener 22 will adhere to the surface of the stamping groove 15, meaning that both the front and rear sides of the scaffold fastener 22 will tilt upwards. Because the front end of the scaffold fastener 22 is restricted by the rotating rod 16, the fastener limiting block 17, and the scaffold fastener 22 itself, it facilitates the front end of the scaffold fastener 22 rotating around the rotating rod 16 during bending. This allows the front side of the scaffold fastener 22 to better adhere to the inner wall of the stamping groove 15. When the front end of the scaffold fastener 22 rotates around the rotating rod... When 16 rotates, it drives the rotating rod 16, the fastener limiting block 17, and the fastener pressing block 12 to rotate synchronously until the flat groove on the surface of the rotating rod 16 is tangent to the inner wall of the stamping groove 15. This ensures a smooth transition during the forging process of the scaffold fastener 22, ensuring that the fastener is subjected to uniform force during the forging process and avoiding defects such as cracks and deformation. This improves the forging quality, protects the mold and internal components of the fastener, prevents damage due to excessive impact, and extends the service life of the mold and fastener. The fixed yet rotatable structure helps maintain the stability of the fastener during the forging process, thereby improving the forging accuracy and the quality of the fastener.

[0048] During the rotation of the rotating rod 16, the connecting block 18 will rotate. The rotating rod 16 will twist the torsion spring 20 during the rotation. The connecting block 18 is limited by the two limiting plates 19, which can limit the rotation angle of the rotating rod 16 and prevent the rotating rod 16 from rotating excessively, which would affect the forging of the scaffold coupler 22. During the rotation of the rotating rod 16, the coupler pressing block 12 will rotate inside the movable block 11. At the same time, the pressing block connecting block 24 on the surface of the coupler pressing block 12 is limited by the sliding groove 23 inside the movable block 11. Both the sliding groove 23 and the pressing block connecting block 24 are arc-shaped, which facilitates the rotation of the coupler pressing block 12 inside the movable block 11. This facilitates the rotation of the coupler 22 with the rotating rod 16 during the forging process, which is convenient for the forging of the scaffold coupler 22.

[0049] By repeating the above process, the scaffold coupler 22 is easily shaped. After the scaffold coupler 22 is forged, the first hydraulic rod 3 is activated to drive the upper mold connecting seat 5, upper mold 6, slider 7, fixing bolt 8, punch head 9, second hydraulic rod 10, movable block 11, coupler pressure block 12, and connecting plate 13 to rise, causing the punch head 9 and coupler pressure block 12 to separate from the scaffold coupler 22. At the same time, the rotating rod 16, under the action of the torsion spring 20, easily returns to its original position. During the process, rotation occurs, and as the rotating rod 16 rotates, it squeezes the lower end of the scaffold coupler 22, causing the scaffold coupler 22 to be pushed upwards with a certain gap under the action of the rotating rod 16. This makes it easier for workers to remove the scaffold coupler 22 with tools, facilitating demolding of the scaffold coupler 22. Since the lower end of the coupler pressure block 12 is flat, it is easy to manually restore the scaffold coupler 22 with tools after demolding, facilitating repeated forging of the scaffold coupler 22.

[0050] After a period of use, the surface of the stamping head 9 will experience wear. When the wear reaches a certain level, the upper die 6 and the stamping head 9 need to be disassembled and replaced. By using tools such as wrenches, the fixing bolts 8 on the surface of the upper die connecting seat 5 can be removed from the upper die connecting seat 5. Then, the upper die 6 can be pulled out of the upper die connecting seat 5 to facilitate the disassembly and replacement of the upper die 6 and the stamping head 9. Quick disassembly and replacement of the die can shorten the production preparation time and thus improve production efficiency. The T-shaped design of the slider 7 enhances the connection stability between the upper die 6 and the upper die connecting seat 5, ensuring that there will be no deviation or shaking during the stamping process. The fixing and limiting function of the fixing bolts 8 can prevent the upper die 6 from falling off or shifting due to excessive force during the stamping process, thereby ensuring the safety of operators and equipment.

[0051] Furthermore, the arrangement of the rotating rod 16, the fastener limiting block 17, the movable block 11, and the fastener pressing block 12 facilitates the positioning of the scaffold fastener 22. This allows the end of the scaffold fastener 22 closest to the rotating rod 16 to rotate during the forging process, ensuring a smooth transition and allowing the front side of the scaffold fastener 22 to better fit the inner wall of the stamping groove 15. This ensures uniform force distribution during forging, preventing defects such as cracks and deformation, thereby improving forging quality, protecting the mold and internal components of the fastener, preventing damage from excessive impact, and extending the service life of the mold and fastener. The fixed yet rotatable structure helps maintain the stability of the fastener during forging, thus improving forging accuracy and fastener quality.

[0052] The pivot 21 facilitates the bending of the scaffold coupler 22 on the surfaces of the pivot 21 and the rotating rod 16. When the scaffold coupler 22 bends, it moves on the surface of the pivot 21. The pivot 21 reduces the resistance of the scaffold coupler 22 as it moves on the surface of the lower die 14 due to bending, and also reduces the friction between the scaffold coupler 22 and the lower die 14, making it easier for the scaffold coupler 22 to fit against the inner wall of the stamping groove 15. The pivot 21 supports the scaffold coupler 22 in the lower die 14, ensuring its stability during forging, and also acts as a guide, allowing the scaffold coupler 22 to move along a predetermined path. As a rolling bearing, the pivot 21 significantly reduces the friction between the lower die 14 and the scaffold coupler 22, reducing energy consumption and wear on the lower die 14, extending its service life. The pivot 21 helps improve the precision and surface quality of the forged parts, while reducing resistance during forging and increasing production efficiency.

[0053] Working principle: When using this device, firstly, two positioning holes are drilled on the surface of the scaffold coupler 22 to be forged, and the scaffold coupler 22 is annealed to facilitate easy shaping during the forging process. The annealed scaffold coupler 22 is then placed on the lower mold 14, and the positioning holes of the scaffold coupler 22 are engaged with two coupler limiting blocks 17. The two coupler limiting blocks 17 limit the two positioning holes. The first hydraulic rod 3 is then extended, causing the upper mold connecting seat 5 to descend. The upper mold connecting seat 5 then drives the slider 7 and the upper... The mold 6 descends, and the upper mold 6 drives the stamping head 9 and the second hydraulic rod 10 to descend. The second hydraulic rod 10 drives the movable block 11 and the fastener pressure block 12 to descend. When the fastener pressure block 12 contacts the scaffold fastener 22, the first hydraulic rod 3 continues to extend, and at the same time, the second hydraulic rod 10 shortens synchronously. The shortening speed of the second hydraulic rod 10 is the same as the extension speed of the first hydraulic rod 3, so that the fastener pressure block 12 is always in contact with the scaffold fastener 22 and limits the scaffold fastener 22. When the stamping head 9 contacts the scaffold fastener 22, it is convenient to stamp and shape the scaffold fastener 22.

[0054] When the stamping head 9 applies pressure to the scaffold coupler 22, forcing it into the stamping groove 15, the rotating rod 16, the coupler limiting block 17, and the rotating shaft 21 facilitate the bending of the scaffold coupler 22 on the surfaces of the rotating shaft 21 and the rotating rod 16. When the scaffold coupler 22 bends, it moves on the surface of the rotating shaft 21. The rotating shaft 21 helps reduce the resistance of the scaffold coupler 22 as it moves on the surface of the lower die 14 due to bending, and also reduces the friction between the scaffold coupler 22 and the lower die 14. The scaffolding coupler 22 is designed to fit snugly against the inner wall of the stamping groove 15. The pivot 21 supports the scaffolding coupler 22 in the lower die 14, ensuring its stability during forging. It also acts as a guide, allowing the scaffolding coupler 22 to move along a predetermined path. As a rolling bearing, the pivot 21 significantly reduces friction between the lower die 14 and the scaffolding coupler 22, reducing energy consumption. It also reduces wear on the lower die 14, extending its service life. The pivot 21 helps improve the precision and surface quality of the forged parts, while reducing resistance during forging and increasing production efficiency.

[0055] Simultaneously, the arrangement of the rotating rod 16, the fastener limiting block 17, and the fastener pressing block 12 ensures that, during the bending process, the scaffold fastener 22 will adhere to the surface of the stamping groove 15, meaning that both the front and rear sides of the scaffold fastener 22 will tilt upwards. Because the front end of the scaffold fastener 22 is restricted by the rotating rod 16, the fastener limiting block 17, and the scaffold fastener 22 itself, it facilitates the front end of the scaffold fastener 22 rotating around the rotating rod 16 during bending. This allows the front side of the scaffold fastener 22 to better adhere to the inner wall of the stamping groove 15. When the front end of the scaffold fastener 22 rotates around the rotating rod... When 16 rotates, it drives the rotating rod 16, the fastener limiting block 17, and the fastener pressing block 12 to rotate synchronously until the flat groove on the surface of the rotating rod 16 is tangent to the inner wall of the stamping groove 15. This ensures a smooth transition during the forging process of the scaffold fastener 22, ensuring that the fastener is subjected to uniform force during the forging process and avoiding defects such as cracks and deformation. This improves the forging quality, protects the mold and internal components of the fastener, prevents damage due to excessive impact, and extends the service life of the mold and fastener. The fixed yet rotatable structure helps maintain the stability of the fastener during the forging process, thereby improving the forging accuracy and the quality of the fastener.

[0056] During the rotation of the rotating rod 16, the connecting block 18 will rotate. The rotating rod 16 will twist the torsion spring 20 during the rotation. The connecting block 18 is limited by the two limiting plates 19, which can limit the rotation angle of the rotating rod 16 and prevent the rotating rod 16 from rotating excessively, which would affect the forging of the scaffold coupler 22. During the rotation of the rotating rod 16, the coupler pressing block 12 will rotate inside the movable block 11. At the same time, the pressing block connecting block 24 on the surface of the coupler pressing block 12 is limited by the sliding groove 23 inside the movable block 11. Both the sliding groove 23 and the pressing block connecting block 24 are arc-shaped, which facilitates the rotation of the coupler pressing block 12 inside the movable block 11. This facilitates the rotation of the coupler 22 with the rotating rod 16 during the forging process, which is convenient for the forging of the scaffold coupler 22.

[0057] By repeating the above process, the scaffold coupler 22 is easily shaped. After the scaffold coupler 22 is forged, the first hydraulic rod 3 is activated to drive the upper mold connecting seat 5, upper mold 6, slider 7, fixing bolt 8, punch head 9, second hydraulic rod 10, movable block 11, coupler pressure block 12, and connecting plate 13 to rise, causing the punch head 9 and coupler pressure block 12 to separate from the scaffold coupler 22. At the same time, the rotating rod 16, under the action of the torsion spring 20, easily returns to its original position. During the process, rotation occurs, and as the rotating rod 16 rotates, it squeezes the lower end of the scaffold coupler 22, causing the scaffold coupler 22 to be pushed upwards with a certain gap under the action of the rotating rod 16. This makes it easier for workers to remove the scaffold coupler 22 with tools, facilitating demolding of the scaffold coupler 22. Since the lower end of the coupler pressure block 12 is flat, it is easy to manually restore the scaffold coupler 22 with tools after demolding, facilitating repeated forging of the scaffold coupler 22.

[0058] After a period of use, the surface of the stamping head 9 will experience wear. When the wear reaches a certain level, the upper die 6 and the stamping head 9 need to be disassembled and replaced. By using tools such as wrenches, the fixing bolts 8 on the surface of the upper die connecting seat 5 can be removed from the upper die connecting seat 5. Then, the upper die 6 can be pulled out of the upper die connecting seat 5 to facilitate the disassembly and replacement of the upper die 6 and the stamping head 9. Quick disassembly and replacement of the die can shorten the production preparation time and thus improve production efficiency. The T-shaped design of the slider 7 enhances the connection stability between the upper die 6 and the upper die connecting seat 5, ensuring that there will be no deviation or shaking during the stamping process. The fixing and limiting function of the fixing bolts 8 can prevent the upper die 6 from falling off or shifting due to excessive force during the stamping process, thereby ensuring the safety of operators and equipment.

[0059] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A mold for producing scaffolding couplers, characterized in that: It includes a fastener forging table (1), a lower die (14) and an upper die (6); The fastener limiting assembly is set on the upper mold (6). The fastener limiting assembly includes a second hydraulic rod (10). The second hydraulic rod (10) is fixedly connected to the inside of the upper mold (6). The output end of the second hydraulic rod (10) is fixedly connected to a movable block (11). The upper end of the movable block (11) is fixedly connected to two connecting plates (13). Both connecting plates (13) are slidably connected to the upper mold (6). The movable block (11) is rotatably connected to a fastener block (12). The movable block (11) has a sliding groove (23) on both the left and right sides. The fastener block (12) is fixedly connected to a fastener connecting block (24) on both the left and right sides. The sliding groove (23) and the fastener connecting block (24) are both arc-shaped. The upper end of the fastener block (12) is arc-shaped, and the lower end of the fastener block (12) is flat. A punch head (9) is fixedly connected to the lower end of the upper mold (6).

2. The mold for producing scaffolding couplers according to claim 1, characterized in that: The fastener limiting assembly also includes a rotating rod (16), which is rotatably connected to the inside of the lower mold (14). The surface of the lower mold (14) is provided with a stamping groove (15) that is compatible with the stamping head (9). The surface of the rotating rod (16) is provided with a horizontal groove, and two fastener limit blocks (17) are fixedly connected to the surface of the groove. The interior of the lower mold (14) is provided with scaffold fasteners (22).

3. The mold for producing scaffolding couplers according to claim 2, characterized in that: A rotating shaft (21) is rotatably connected to the opening of the stamping groove (15).

4. The mold for producing scaffolding couplers according to claim 2, characterized in that: The rotating rod (16) rotates through the lower mold (14), and a connecting block (18) is fixedly connected to the left end of the rotating rod (16). Two limiting plates (19) are fixedly connected to the left end of the lower mold (14). A torsion spring (20) is sleeved on the surface of the rotating rod (16), and the left and right sides of the torsion spring (20) are fixedly connected to the lower mold (14) and the rotating rod (16).

5. The mold for producing scaffolding couplers according to claim 1, characterized in that: The upper end of the fastener forging table (1) is fixedly connected to a fixed bracket (2), and the inside of the fixed bracket (2) is fixedly connected to a first hydraulic rod (3). The output end of the first hydraulic rod (3) is fixedly connected to an upper mold connecting seat (5). Four connecting rods (4) are fixedly connected to the upper end of the upper mold connecting seat (5), and all four connecting rods (4) are slidably connected to the fixed bracket (2).

6. The mold for producing scaffolding couplers according to claim 1, characterized in that: The upper end of the upper mold (6) is fixedly connected to two sliders (7), and both sliders (7) are slidably connected to the upper mold connecting seat (5); The upper mold connecting seat (5) has two fixing bolts (8) for internal thread connection, and the two sliders (7) are fixed to the upper mold connecting seat (5) by the two fixing bolts (8).

7. A mold for producing scaffolding couplers according to claim 6, characterized in that: Both sliders (7) are T-shaped.

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