A cold bending device for bar threaded steel production

Abstract

The utility model relates to cold bending device for bar thread steel production field especially, and it is a kind of cold bending device for bar thread steel production, including base, the top middle fixed vertical board of base, the top side of vertical board is evenly opened and has inserted hole, the upper and lower sides of inserted hole are equipped with clamping roller, the both ends of clamping roller are equipped with driving mechanism, the front side of vertical board is equipped with the rotary abutment mechanism for thread steel bending. Advantageous effect lies in: the utility model can drive the upper and lower two clamping rollers to the thread steel that passes through inserted hole to carry out synchronous clamping, thus, the thread steel that needs to be bent can be clamped quickly, and the speed of thread steel batch bending is improved;Rotary plate, extension plate and second abutment roller rotate around rotary rod, so that the thread steel can be bent to different lengths, and the thread steel can be bent flexibly.

Description

Technical Field

[0001] This utility model relates to the field of cold bending technology for rebar, and in particular to a cold bending device for producing bar rebar. Background Technology

[0002] Rebar, commonly known as hot-rolled ribbed steel bar, requires bending in certain applications. It is widely used in civil engineering projects such as housing, bridges, and roads. From large-scale public utilities like highways, railways, bridges, culverts, tunnels, flood control, and dams, to smaller components like building foundations, beams, columns, walls, and slabs, rebar is an indispensable structural material. With China's deepening urbanization and the booming development of infrastructure and real estate, the demand for rebar is strong. Furthermore, rebar often needs to be bent during use.

[0003] Existing cold bending equipment for bar and rebar production requires clamping and stabilizing the rebar during the cold bending process. Since rebar is a slender bar structure, bending it individually results in slow bending efficiency. When bending multiple rebars simultaneously, multiple clamping structures need to be adjusted, which is cumbersome and inconvenient for quickly driving the clamping structures to hold multiple rebars. Furthermore, it is difficult to adjust the length of the bending structure during bending, making it inconvenient to bend the rebar to different lengths.

[0004] Therefore, a cold bending device for producing bar rebar is proposed. Utility Model Content

[0005] The purpose of this invention is to solve the problem that in the existing technology, when bending multiple threaded steel bars in a unified manner, it is necessary to adjust multiple clamping structures to clamp the threaded steel bars, which is cumbersome and inconvenient to quickly drive the clamping structures to clamp multiple threaded steel bars. Therefore, this invention proposes a cold bending device for bar threaded steel bar production.

[0006] To achieve the above objectives, this utility model provides the following technical solution: Design a cold bending device for producing bar rebar, including a base, a vertical plate fixed at the top center of the base, insertion holes evenly opened on the top side of the vertical plate, clamping rollers installed on the upper and lower sides of the insertion holes, a drive mechanism installed at both ends of the clamping rollers, and a rotating abutment mechanism for bending rebar installed on the front side of the vertical plate. The driving mechanism includes a first support rod fixedly installed in the middle of the clamping roller, sliding blocks fixed at both ends of the first support rod, mounting plates fixed at the top ends of both sides of the vertical plate, a sliding groove opened on the side of the mounting plate for adjusting the sliding position of the sliding blocks, and a driving rod that rotates through the middle of the two sliding blocks. The rotating abutment mechanism includes rotating plates rotatably mounted on both sides of the front end of the vertical plate, a first abutment roller rotatably mounted between the outer ends of the two rotating plates, and an extension abutment mechanism for bending threaded steel bars of different lengths inserted into the outer end of the rotating plate.

[0007] Furthermore, the base is horizontally arranged, the vertical plate is a rectangular plate structure and is vertically arranged, the mounting plate is a rectangular plate structure and is vertically arranged, the sliding groove is a rectangular groove structure, and the drive rod is vertically rotatably installed inside the sliding groove.

[0008] Furthermore, the first support rod is horizontally arranged on the upper and lower sides of the insertion hole, the outer end of the sliding block is recessed in the interior of the sliding groove, and a driving hole is opened in the middle. The driving hole is a threaded hole structure, the driving rod is a threaded rod structure, and it rotates through the driving hole. The top end of the driving rod is fixed with a first gear that slides and overlaps with the top end of the mounting plate.

[0009] Furthermore, a side plate is fixed to the outer top of the mounting plate, and a worm gear is rotatably mounted between the two side plates. The two ends of the worm gear are meshed and connected to the first gear at the top of both sides of the vertical plate.

[0010] Furthermore, the worm gear has a horizontal clearance at the top of the vertical plate, and a first motor is installed at one end of the worm gear. The first motor is fixedly installed on the outside of the side plate.

[0011] Furthermore, a rotating hole is opened in the middle of the outer side of the mounting plate, and a rotating rod is rotatably inserted into the rotating hole. The top of the inner side of the rotating plate is fixed to the outer end of the rotating rod. A second support rod is fixed between the bottom inner sides of the two rotating plates. The second support rod is horizontally arranged on the outer side of the vertical plate, and the first abutting roller is rotatably sleeved on the surface of the second support rod.

[0012] Furthermore, a second gear is fixed to the surface of one of the rotating rods and at a position outside the mounting plate. The second gear is vertically disposed on the inner side of the top of the rotating plate. A second motor is fixedly installed on one side of the vertical plate and at a position at the bottom of the mounting plate. A third gear is installed at the output end of the second motor. The third gear is meshed and driven to the bottom end of the second gear.

[0013] Furthermore, the extended abutment mechanism includes an adjustment groove formed inside the rotating plate, an extension plate inserted into the adjustment groove, a snap-fit ​​rod inserted into the bottom end of the rotating plate for snap-fit ​​connection between the rotating plate and the extension plate, a third support rod fixed between the bottom ends of the two extension plates, and a second abutment roller rotatably sleeved on the surface of the third support rod.

[0014] Furthermore, a guide hole is provided on the outer side of the bottom end of the adjustment groove, the locking rod slides through the guide hole, a limit plate is fixed at its outer end, a tension spring is sleeved on the outer end surface of the locking rod, the two ends of the tension spring are respectively connected to the inner side of the limit plate and the outer side of the rotating plate, the surface of the extension plate is evenly provided with locking holes, and the inner end of the locking rod slides and locks into one of the locking holes.

[0015] The present invention provides a cold bending device for producing bar rebar, which has the following advantages: 1. This utility model has multiple insertion holes evenly arranged on the top side of the vertical plate, which can be used to insert multiple threaded steel bars that need to be bent. Therefore, the first motor drives the worm gear to rotate, the worm gear drives two first gears to rotate synchronously, and then drives two drive rods to rotate synchronously. In this way, the two first support rods can be driven to move the same distance along the sliding groove at the same time, and then drive the upper and lower clamping rollers to clamp the threaded steel bars passing through the insertion holes synchronously. Therefore, multiple threaded steel bars that need to be bent can be clamped quickly, which can improve the speed of batch bending of threaded steel bars.

[0016] 2. In this invention, a rotating plate is mounted on the front end of the vertical plate via a rotating rod, and an extension plate is mounted on the bottom end of the rotating plate via an adjusting groove, a snap-fit ​​hole, and a snap-fit ​​rod. Therefore, the extension plate can be moved along the adjusting groove to adjust the distance between the second abutment roller and the insertion hole according to the required bending length of the threaded steel. Thus, after the threaded steel is clamped by the clamping roller, the second motor drives the third gear to rotate, and meshes with the second gear and the rotating rod to rotate. Therefore, the rotating plate, the extension plate, and the second abutment roller rotate around the rotating rod, thereby allowing the threaded steel to be bent to different lengths, facilitating flexible bending of the threaded steel. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This utility model Figure 1 Schematic diagram of the mounting plate and vertical plate; Figure 3 This utility model Figure 1 A schematic diagram of the rotating plate section; Figure 4 This utility model Figure 1 A schematic diagram of the sliding block and clamping rollers; Figure 5 This utility model Figure 1 A schematic diagram of the snap-fit ​​rod section.

[0018] In the diagram: 1. Base; 2. Vertical plate; 3. Limiting plate; 4. Rotating plate; 5. Third gear; 6. Sliding block; 7. Second gear; 8. Sliding groove; 9. First motor; 10. Worm gear; 11. First gear; 12. Mounting plate; 13. Clamping roller; 14. Insertion hole; 15. Side plate; 16. First abutting roller; 17. Second support rod; 18. Snap-fit ​​hole; 19. Extension plate; 20. Third support rod; 21. Second abutting roller; 22. Second motor; 23. Rotating hole; 24. Drive rod; 25. Adjusting groove; 26. Guide hole; 27. Rotating rod; 28. First support rod; 29. ​​Drive hole; 30. Snap-fit ​​rod; 31. Tension spring. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] For examples, please refer to Figures 1 to 5 The figure shows a cold bending device for producing bar rebar, including a base 1, a vertical plate 2 fixed at the top center of the base 1, and insertion holes 14 evenly opened on the top side of the vertical plate 2. Clamping rollers 13 are installed on the upper and lower sides of the insertion holes 14, and driving mechanisms are installed at both ends of the clamping rollers 13. A rotating abutment mechanism for bending rebar is installed on the front side of the vertical plate 2.

[0021] In detail, the drive mechanism includes a first support rod 28 fixedly installed in the middle of the clamping roller 13, sliding blocks 6 fixed at both ends of the first support rod 28, mounting plates 12 fixed at the top of both sides of the vertical plate 2, sliding grooves 8 opened on the side of the mounting plate 12 for adjusting the sliding position of the sliding blocks 6, and a drive rod 24 that rotates through the middle of the two sliding blocks 6.

[0022] The base 1 is horizontally set, the vertical plate 2 is a rectangular plate structure and is set vertically, the mounting plate 12 is a rectangular plate structure and is set vertically, the sliding groove 8 is a rectangular groove structure, and the drive rod 24 is vertically rotatably installed inside the sliding groove 8.

[0023] The first support rod 28 is horizontally arranged on the upper and lower sides of the insertion hole 14. The outer end of the sliding block 6 is recessed into the interior of the sliding groove 8. A drive hole 29 is opened in the middle. The drive hole 29 is a threaded hole structure. The drive rod 24 is a threaded rod structure and passes through the drive hole 29 by threaded rotation. The top end of the drive rod 24 is fixed with a first gear 11 that slides and overlaps with the top end of the mounting plate 12.

[0024] A side plate 15 is fixed to the top outer side of the mounting plate 12. A worm gear 10 is rotatably mounted between the two side plates 15. The two ends of the worm gear 10 are meshed and connected to the first gear 11 at the top of both sides of the vertical plate 2.

[0025] The worm gear 10 has a horizontal clearance at the top of the vertical plate 2, and a first motor 9 is installed at one end of it. The first motor 9 is fixedly installed on the outside of the side plate 15.

[0026] The first motor 9 drives the worm gear 10 to rotate, and the worm gear 10 drives the two first gears 11 to rotate synchronously, which in turn drives the two drive rods 24 to rotate synchronously. In this way, the two first support rods 28 can be driven to move the same distance along the sliding groove 8 at the same time, which in turn drives the upper and lower clamping rollers 13 to clamp the threaded steel passing through the insertion hole 14 synchronously. Therefore, multiple threaded steels that need to be bent can be clamped quickly, which can improve the speed of batch bending of threaded steel.

[0027] Furthermore, the rotating abutment mechanism includes rotating plates 4 rotatably mounted on both sides of the front end of the vertical plate 2, a first abutment roller 16 rotatably mounted between the outer ends of the two rotating plates 4, and an extension abutment mechanism for bending threaded steel bars of different lengths, which is inserted and mounted on the outer end of the rotating plates 4.

[0028] A rotating hole 23 is opened in the middle of the outer side of the mounting plate 12. A rotating rod 27 is rotatably inserted into the rotating hole 23. The top of the inner side of the rotating plate 4 is fixed to the outer end of the rotating rod 27. A second support rod 17 is fixed between the bottom inner sides of the two rotating plates 4. The second support rod 17 is horizontally set on the outer side of the vertical plate 2. The first abutting roller 16 is rotatably sleeved on the surface of the second support rod 17.

[0029] A second gear 7 is fixed on the surface of a rotating rod 27 and located outside the mounting plate 12. The second gear 7 is vertically arranged on the inner side of the top of the rotating plate 4. A second motor 22 is fixedly installed on one side of the vertical plate 2 and located at the bottom of the mounting plate 12. A third gear 5 is installed at the output end of the second motor 22. The third gear 5 is meshed and driven by the bottom end of the second gear 7.

[0030] Depending on the required bending length of the rebar, the extension plate 19 is moved along the adjustment groove 25 to adjust the distance between the second abutment roller 21 and the insertion hole 14. Therefore, after the rebar is clamped by the clamping roller 13, the second motor 22 drives the third gear 5 to rotate, and meshes with the second gear 7 and the rotating rod 27 to rotate. Thus, the rotating plate 4, the extension plate 19 and the second abutment roller 21 rotate around the rotating rod 27, thereby allowing the rebar to be bent to different lengths, which facilitates flexible bending of the rebar.

[0031] Finally, the extended abutment mechanism includes an adjustment groove 25 inside the rotating plate 4, an extension plate 19 inserted into the adjustment groove 25, a snap-fit ​​rod 30 inserted into the bottom of the rotating plate 4 for snap-fit ​​connection between the rotating plate 4 and the extension plate 19, a third support rod 20 fixed between the bottom ends of the two extension plates 19, and a second abutment roller 21 rotatably sleeved on the surface of the third support rod 20.

[0032] A guide hole 26 is opened on the outer side of the bottom end of the adjustment groove 25. The snap-fit ​​rod 30 slides through the guide hole 26, and a limit plate 3 is fixed at its outer end. A tension spring 31 is sleeved on the outer end surface of the snap-fit ​​rod 30. The two ends of the tension spring 31 are respectively connected to the inner side of the limit plate 3 and the outer side of the rotating plate 4. Snap-fit ​​holes 18 are evenly opened on the surface of the extension plate 19. The inner end of the snap-fit ​​rod 30 slides and snaps into a snap-fit ​​hole 18.

[0033] The extension plate 19 and the rotating plate 4 are connected by a snap-fit ​​rod 30, which facilitates the adjustment of the position of the extension plate 19, as well as the disassembly, installation, replacement and maintenance of the extension plate 19 and the second abutment roller 21.

[0034] Working principle: Multiple insertion holes 14 are evenly arranged on the top side of the vertical plate 2, allowing multiple threaded steel bars that need to be bent to be inserted. Therefore, the first motor 9 drives the worm gear 10 to rotate, and the worm gear 10 drives the two first gears 11 to rotate synchronously, which in turn drives the two drive rods 24 to rotate synchronously. In this way, the two first support rods 28 can be driven to move the same distance along the sliding groove 8 at the same time, which in turn drives the upper and lower clamping rollers 13 to clamp the threaded steel bars that pass through the insertion holes 14 synchronously. Therefore, multiple threaded steel bars that need to be bent can be clamped quickly, which facilitates the improvement of the speed of batch bending of threaded steel bars.

[0035] A rotating plate 4 is rotatably mounted on the front end of the vertical plate 2 via a rotating rod 27, and an extension plate 19 is mounted on the bottom end of the rotating plate 4 via an adjusting groove 25, a snap-fit ​​hole 18, and a snap-fit ​​rod 30. Therefore, the extension plate 19 can be moved telescopically along the adjusting groove 25 according to the required bending length of the threaded steel, thereby adjusting the distance between the second abutting roller 21 and the insertion hole 14. Thus, after the threaded steel is clamped by the clamping roller 13, the second motor 22 drives the third gear 5 to rotate, and meshes with and drives the second gear 7 and the rotating rod 27 to rotate. Therefore, the rotating plate 4, the extension plate 19, and the second abutting roller 21 rotate around the rotating rod 27, thereby allowing the threaded steel to be bent to different lengths, which facilitates flexible bending of the threaded steel.

[0036] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A cold bending device for producing bar rebar, comprising a base, characterized in that: A vertical plate is fixed at the top center of the base. Insertion holes are evenly opened on the top side of the vertical plate. Clamping rollers are installed on the upper and lower sides of the insertion holes. A drive mechanism is installed at both ends of the clamping rollers. A rotating abutment mechanism for bending threaded steel is installed on the front side of the vertical plate. The driving mechanism includes a first support rod fixedly installed in the middle of the clamping roller, sliding blocks fixed at both ends of the first support rod, mounting plates fixed at the top ends of both sides of the vertical plate, a sliding groove opened on the side of the mounting plate for adjusting the sliding position of the sliding blocks, and a driving rod that rotates through the middle of the two sliding blocks. The rotating abutment mechanism includes rotating plates rotatably mounted on both sides of the front end of the vertical plate, a first abutment roller rotatably mounted between the outer ends of the two rotating plates, and an extension abutment mechanism for bending threaded steel bars of different lengths inserted into the outer end of the rotating plate.

2. The cold bending device for producing bar rebar according to claim 1, characterized in that: The base is horizontally arranged, the vertical plate is a rectangular plate structure and is vertically arranged, the mounting plate is a rectangular plate structure and is vertically arranged, the sliding groove is a rectangular groove structure, and the drive rod is vertically rotatably installed inside the sliding groove.

3. The cold bending device for producing bar rebar according to claim 1, characterized in that: The first support rod is horizontally arranged on the upper and lower sides of the insertion hole. The outer end of the sliding block is recessed into the interior of the sliding groove, and a driving hole is opened in the middle. The driving hole is a threaded hole structure, and the driving rod is a threaded rod structure that rotates through the driving hole. The top end of the driving rod is fixed with a first gear that slides and overlaps with the top end of the mounting plate.

4. The cold bending device for producing bar rebar according to claim 3, characterized in that: A side plate is fixed to the top outer side of the mounting plate, and a worm gear is rotatably mounted between the two side plates. The two ends of the worm gear are meshed and connected to the first gear at the top of both sides of the vertical plate.

5. A cold bending device for producing bar rebar according to claim 4, characterized in that: The worm gear has a horizontal clearance at the top of the vertical plate, and a first motor is installed at one end of the worm gear. The first motor is fixedly installed on the outside of the side plate.

6. The cold bending device for producing bar rebar according to claim 1, characterized in that: A rotating hole is opened in the middle of the outer side of the mounting plate. A rotating rod is rotatably inserted into the rotating hole. The top of the inner side of the rotating plate is fixed to the outer end of the rotating rod. A second support rod is fixed between the bottom inner sides of the two rotating plates. The second support rod is horizontally set on the outer side of the vertical plate. The first abutting roller is rotatably sleeved on the surface of the second support rod.

7. A cold bending device for producing bar rebar according to claim 6, characterized in that: A second gear is fixed on the surface of the rotating rod and at a position outside the mounting plate. The second gear is vertically disposed on the inner side of the top of the rotating plate. A second motor is fixedly installed on one side of the vertical plate and at a position at the bottom of the mounting plate. A third gear is installed at the output end of the second motor. The third gear is meshed and driven by the bottom end of the second gear.

8. A cold bending device for producing bar rebar according to claim 1, characterized in that: The extended abutment mechanism includes an adjustment groove inside the rotating plate, an extension plate inserted into the adjustment groove, a snap-fit ​​rod inserted into the bottom end of the rotating plate for snap-fit ​​connection between the rotating plate and the extension plate, a third support rod fixed between the bottom ends of the two extension plates, and a second abutment roller rotatably sleeved on the surface of the third support rod.

9. A cold bending device for producing bar rebar according to claim 8, characterized in that: The bottom outer side of the adjustment groove has a guide hole, the locking rod slides through the guide hole, and a limit plate is fixed at its outer end. A tension spring is sleeved on the outer end surface of the locking rod. The two ends of the tension spring are respectively connected to the inner side of the limit plate and the outer side of the rotating plate. The surface of the extension plate has locking holes evenly distributed. The inner end of the locking rod slides and locks into one of the locking holes.

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