Bending machine

Abstract

The embodiment of the utility model provides a bending machine, which relates to the technical field of fire extinguisher production, and comprises a workbench, a plurality of side pressing mechanisms, a plurality of side pressing mechanisms and a plurality of side pressing mechanisms, and each side pressing mechanism comprises a centering assembly, two connecting bearings, two side pressing rollers and two locking mechanisms; wherein the locking mechanism comprises internal thread cylinders, the internal thread cylinders are vertically arranged, the two internal thread cylinders are both connected with a centering assembly, and the centering assembly controls the two internal thread cylinders to synchronously and horizontally and linearly move in opposite directions; a single-thread rod is connected into the inner thread cylinder through threads, an inner hexagonal hole is formed in the top end of the single-thread rod, and a hexagonal prism is arranged in the inner hexagonal hole. According to the bending machine, when the bending machine is disassembled, a second guide column is pulled upwards, a spring is compressed, at the moment, a conical surface of a cylinder cannot extrude a ball, so that the ball can move in a hexagonal prism, the whole locking mechanism is pulled out, and it can be known that the disassembling mode is simple, rapid and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of fire extinguisher production, in particular to a bending machine. Background Art

[0002] A fire extinguisher is a portable fire-fighting tool. Chemicals are placed in the fire extinguisher to put out fires. Fire extinguishers are one of the most common firefighting equipment and are stored in public places or places where fires may occur. Different types of fire extinguishers are filled with different ingredients and are designed for different causes of fire. Be careful when using them to avoid adverse effects and dangers.

[0003] In the production of fire extinguishers, the tank body (i.e., metal cylinder) of the fire extinguisher is formed by feeding the steel strip into an extrusion molding machine (the extrusion molding machine is also called a bending machine) for extrusion to gradually form a cylinder, then welding the gap of the cylinder, and finally cutting it to a fixed length. The extrusion molding machine is composed of multiple pairs of side pressure rollers and multiple groups of longitudinal pressure rollers. The multiple pairs of side pressure rollers and multiple groups of longitudinal pressure rollers are located in a straight line and are staggered (reference Figure 2 ),by Figure 1 For example, after the side rollers of the existing extrusion molding machine have been used for a long time, they need to be replaced regularly due to wear problems. Generally, the side rollers are arranged on the screw a through the bearing sleeve, and then locked by the hexagonal nut b. It can be seen that the disassembly process requires a wrench, and the disassembly method is laborious and cannot be replaced quickly, which affects the replacement efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a bending machine to solve the problem proposed in the background technology that the existing side pressure roller is arranged on the screw a through a bearing sleeve and then locked by a hexagonal nut b. It can be seen that the disassembly process requires a wrench, and the disassembly method is laborious and cannot be replaced quickly, which affects the replacement efficiency.

[0005] In a first aspect, the utility model provides a bending machine, comprising a workbench, and further comprising:

[0006] A plurality of side pressure mechanisms, each of which comprises a centering assembly, two connecting bearings, two side pressure rollers and two locking mechanisms;

[0007] Wherein, the locking mechanism comprises an internal threaded barrel, the internal threaded barrel is vertically arranged, and the two internal threaded barrels are connected to a centering assembly, and the centering assembly controls the two internal threaded barrels to move synchronously and in opposite directions horizontally and linearly;

[0008] A single threaded rod is connected to the inner threaded tube by a thread, a hexagonal hole is provided at the top of the single threaded rod, a hexagonal column is provided in the hexagonal hole, a countersunk groove is provided at the top of the hexagonal column, a cylinder is provided in the large diameter hole groove of the countersunk groove, the bottom of the cylinder is conical, a first guide column is fixed to the bottom of the cylinder, the first guide column is provided in the small diameter hole groove of the countersunk groove, a plurality of ball grooves are provided on the inner side wall of the large diameter hole groove of the countersunk groove, and the ball grooves are connected to the outer side of the hexagonal column, A ball is arranged in the ball groove, a plurality of positioning grooves adapted to the ball are provided on the inner side wall of the hexagonal hole, a circular ring plate is fixed on the top of the hexagonal column, a second guide column is arranged on the inner ring wall of the circular ring plate, the second guide column is fixed to the cylinder, a spring is sleeved on the second guide column, the two ends of the spring are in contact with the cylinder and the circular ring plate respectively, a locking plate is fixed on the outer side wall of the hexagonal column, the side pressure roller is sleeved on the internal threaded cylinder through a connecting bearing, and the locking plate is in contact with the annular surface of the inner ring of the connecting bearing;

[0009] Multiple longitudinal pressure mechanisms;

[0010] Among them, the plurality of longitudinal pressing mechanisms and the plurality of centering components are distributed in a straight line on the top of the workbench, and the plurality of longitudinal pressing mechanisms and the plurality of centering components are distributed in a staggered manner.

[0011] In a specific embodiment, a support assembly is provided at the bottom of the workbench;

[0012] Wherein, the support assembly includes a welding bracket, and a plurality of support columns for the top of the welding bracket and the bottom of the workbench are fixed between the two.

[0013] In a specific embodiment, a plurality of universal wheels are fixed to the bottom of the welding bracket.

[0014] In a specific embodiment, a plurality of first threaded holes are provided at the bottom of the welding bracket, and a supporting mechanism is provided in the first threaded holes;

[0015] Wherein, the supporting mechanism comprises a threaded column, and the threaded column is connected in the first threaded hole through threads, and the top end and the bottom end of the threaded column are respectively fixed with a rotating plate and a bottom plate.

[0016] In a specific embodiment, a rubber pad is fixed to the bottom of the base plate.

[0017] In a specific implementation, the centering component includes a fixed table, the fixed table is fixed on the workbench, two slide grooves are provided on the fixed table, a rotating hole connected to the two slide grooves is provided on the fixed table, a double-threaded rod is rotatably installed in the rotating hole, two first moving blocks are sleeved on the double-threaded rod, the double-threaded rod forms a transmission cooperation with the two first moving blocks through a left-handed thread and a right-handed thread respectively, and the two first moving blocks are slidably arranged in the two slide grooves respectively;

[0018] Wherein, the two internal threaded cylinders in the locking mechanism are respectively fixed on the tops of the two first moving blocks.

[0019] In a specific embodiment, both ends of the double-threaded rod are fixed with a hexagonal column coaxially arranged therewith.

[0020] In a specific embodiment, the longitudinal pressing mechanism includes two vertical adjustment components and two second movable blocks, the second movable blocks are respectively connected to the two vertical adjustment components, the vertical adjustment components control the second movable blocks to move linearly up and down, and the two second movable blocks are jointly rotated and installed with a longitudinal pressing roller.

[0021] In a specific embodiment, the vertical adjustment assembly includes a bearing seat, two bearing seats are jointly rotatably installed with support rollers, the top of the bearing seat is provided with a groove, the top of the groove is fixed with a top plate, the top of the top plate is provided with a second threaded hole, an adjusting screw is rotatably installed in the second threaded hole, the second movable block is in contact with the inner walls on both sides of the groove, and one end of the adjusting screw is rotatably installed on the top of the second movable block.

[0022] In a specific embodiment, a handle is fixed to the other end of the adjusting screw.

[0023] When the bending machine provided by the utility model is disassembled, the second guide column is pulled upward and the spring is compressed. At this time, the conical surface of the cylinder cannot squeeze the ball, so that the ball can move in the hexagonal prism, thereby pulling out the entire locking mechanism. It can be seen that the disassembly method is simple and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a structural schematic diagram of the prior art.

[0026] Figure 2 It is a schematic diagram of the overall structure of an embodiment of the utility model.

[0027] Figure 3 for Figure 2 A is an enlarged structural diagram of FIG.

[0028] Figure 4 It is a schematic diagram of the three-dimensional structure of the side pressure mechanism of the embodiment of the utility model as a whole.

[0029] Figure 5 It is a schematic diagram of the internal structure of the locking mechanism of the overall embodiment of the utility model.

[0030] Figure 6 It is a schematic cross-sectional structure diagram of the locking mechanism of the overall embodiment of the utility model.

[0031] icon:

[0032] 1-working table; 2-support column; 3-welding bracket; 4-universal wheel; 5-support mechanism; 6-longitudinal pressure mechanism; 7-lateral pressure mechanism; 8-bottom plate; 9-rotating plate; 10-threaded column; 11-fixed table; 12-lateral pressure roller; 13-connecting bearing; 14-double threaded rod; 15-first moving block; 16-bearing seat; 17-top plate; 18-adjusting screw; 19-second moving block; 20-support roller; 21-longitudinal pressure roller; 22-locking mechanism; 23-single threaded rod; 24-inner threaded cylinder; 25-hexagonal prism; 26-ball; 27-first guide column; 28-cylinder; 29-spring; 30-circular ring plate; 31-second guide column; 32-locking plate. DETAILED DESCRIPTION

[0033] Since the existing general side pressure roller is set on the screw through the bearing sleeve and then locked by the hexagonal nut, it can be seen that the disassembly process requires a wrench, and the disassembly method is laborious and cannot be quickly replaced, affecting the replacement efficiency. Therefore, the inventor provides a bending machine after research. When disassembling, the second guide column is pulled upward and the spring is compressed. At this time, the conical surface of the cylinder cannot squeeze the ball, so that the ball can move in the hexagonal prism, thereby pulling out the entire locking mechanism. It can be seen that the disassembly method is simple and quick.

[0034] In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0035] Please refer to Figures 2 to 6 The embodiment of the utility model provides a bending machine, including a workbench 1, and also includes:

[0036] A plurality of side pressure mechanisms 7 for pressing the two sides of the steel strip, the side pressure mechanism 7 comprising a centering assembly, two connecting bearings 13, two side pressure rollers 12 and two locking mechanisms 22;

[0037] The locking mechanism 22 includes an internal threaded barrel 24, which is vertically arranged. Both internal threaded barrels 24 are connected to a centering assembly, and the centering assembly controls the two internal threaded barrels 24 to move horizontally and linearly in synchronization and in opposite directions.

[0038] A single threaded rod 23 is connected to the inner threaded tube 24 by a thread. The top of the single threaded rod 23 is provided with an inner hexagonal hole. A hexagonal column 25 is arranged in the inner hexagonal hole. A countersunk groove is provided at the top of the hexagonal column 25. A cylinder 28 is arranged in the large diameter hole groove of the countersunk groove. The bottom of the cylinder 28 is conical. A first guide column 27 is fixed to the bottom of the cylinder 28. The first guide column 27 is arranged in the small diameter hole groove of the countersunk groove. A plurality of ball grooves are arranged on the inner side wall of the large diameter hole groove of the countersunk groove, and the ball groove is connected to the outer side of the hexagonal column 25. A ball 26 is arranged in the ball groove. A plurality of positioning grooves adapted to the ball 26 are arranged on the inner side wall of the inner hexagonal hole. A circular ring plate 30 is fixed to the top of the hexagonal column 25. A second guide column 31 is arranged on the inner wall of the circular ring plate 30. The second guide column 31 is connected to the cylinder 2 8 is fixed, the second guide column 31 is sleeved with a spring 29, and the two ends of the spring 29 are in contact with the cylinder 28 and the circular ring plate 30 respectively. A locking plate 32 is fixed to the outer wall of the hexagonal prism 25, and the side pressure roller 12 is sleeved on the internal threaded cylinder 24 through the connecting bearing 13. The locking plate 32 is in contact with the annular surface of the inner ring of the connecting bearing 13. The specific scheme of the utility model is that when disassembling, the second guide column 31 is pulled upward, and the spring 29 is compressed. At this time, the conical surface of the cylinder 28 cannot squeeze the ball 26, so that the ball 26 can move in the hexagonal prism 25, so that the entire locking mechanism 22 can be pulled out. It can be seen that the disassembly method is simple and quick; by rotating the single threaded rod 23, the length of the entire locking mechanism 22 can be adjusted, and side pressure rollers 12 of different lengths are provided;

[0039] A plurality of longitudinal pressing mechanisms 6 for longitudinally pressing the steel strip;

[0040] The plurality of longitudinal pressing mechanisms 6 and the plurality of centering components are distributed in a straight line on the top of the workbench 1 , and the plurality of longitudinal pressing mechanisms 6 and the plurality of centering components are distributed in a staggered manner.

[0041] Furthermore, a support assembly for supporting is provided at the bottom of the workbench 1; wherein the support assembly includes a welding bracket 3, and a plurality of support columns 2 for supporting both are fixed between the top of the welding bracket 3 and the bottom of the workbench 1.

[0042] Furthermore, a plurality of universal wheels 4 for movement are fixed to the bottom of the welding bracket 3 .

[0043] Furthermore, a plurality of first threaded holes are provided at the bottom of the welding bracket 3, and a supporting mechanism 5 is arranged in the first threaded hole; wherein the supporting mechanism 5 includes a threaded column 10, and the threaded column 10 is connected in the first threaded hole by threads, and a rotating plate 9 and a bottom plate 8 are respectively fixed to the top and bottom ends of the threaded column 10, and a specific operation method is that by rotating the rotating plate 9, the rotating plate 9 drives the threaded column 10 to rotate, and the threaded column 10 moves downward through threaded transmission to lift up the entire device, thereby achieving stable placement.

[0044] Furthermore, a rubber pad for increasing friction is fixed to the bottom of the bottom plate 8 .

[0045] Furthermore, the centering component includes a fixed table 11, which is fixed on the workbench 1. Two slide grooves are provided on the fixed table 11. A rotating hole connected to the two slide grooves is provided on the fixed table 11. A double-threaded rod 14 is rotatably installed in the rotating hole. Two first moving blocks 15 are sleeved on the double-threaded rod 14. The double-threaded rod 14 forms a transmission cooperation with the two first moving blocks 15 through left-handed threads and right-handed threads respectively. The two first moving blocks 15 are slidably arranged in the two slide grooves, wherein the two internal threaded cylinders 24 in the locking mechanism 22 are respectively fixed on the top of the two first moving blocks 15. The specific operation is to rotate the double-threaded rod 14, and the double-threaded rod 14 drives the two first moving blocks 15 to move synchronously and in opposite directions horizontally and linearly through threaded transmission.

[0046] Furthermore, both ends of the double-threaded rod 14 are fixed with hexagonal columns coaxially arranged therewith, and the hexagonal column arrangement is convenient for workers to rotate it using an hexagonal wrench.

[0047] Furthermore, the longitudinal pressing mechanism 6 includes two vertical adjusting components and two second movable blocks 19, the second movable blocks 19 are respectively connected to the two vertical adjusting components, the vertical adjusting component controls the second movable block 19 to move linearly up and down, the two second movable blocks 19 are jointly rotatably installed with a longitudinal pressing roller 21, the vertical adjusting component includes a bearing seat 16, the two bearing seats 16 are jointly rotatably installed with a supporting roller 20, a groove is provided on the top of the bearing seat 16, a top plate 17 is fixed on the top of the groove, a second threaded hole is provided on the top of the top plate 17, an adjusting screw 18 is rotatably installed in the second threaded hole, the second movable block 19 contacts with the inner walls on both sides of the groove, one end of the adjusting screw 18 is rotatably installed on the top of the second movable block 19, and a handle is fixed on the other end of the adjusting screw 18. Specifically, the adjusting screw 18 rotates, and the adjusting screw 18 controls the movable block to move up and down through thread transmission.

[0048] To supplement the above, the specifications of the two side pressure rollers 12 on each centering component are inconsistent, and are customized according to the required deformation amount of the steel strip. At the same time, the distance between the two side pressure rollers 12 is inconsistent; similarly, the specifications of the support roller 20 and the longitudinal pressure roller 21 are customized according to the required deformation amount of the steel strip. At the same time, the distance between the support roller 20 and the longitudinal pressure roller 21 in each longitudinal pressing mechanism 6 is inconsistent.

[0049] In summary, a bending machine according to an embodiment of the utility model: when disassembling, the second guide column 31 is pulled upward and the spring 29 is compressed. At this time, the conical surface of the cylinder 28 cannot squeeze the ball 26, so that the ball 26 can move in the hexagonal prism 25, thereby pulling out the entire locking mechanism 22. It can be seen that the disassembly method is simple and quick.

[0050] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A bending machine, comprising a workbench, characterized in that: Also includes: A plurality of side pressure mechanisms, each of which comprises a centering assembly, two connecting bearings, two side pressure rollers and two locking mechanisms; Wherein, the locking mechanism comprises an internal threaded barrel, the internal threaded barrel is vertically arranged, and the two internal threaded barrels are connected to a centering assembly, and the centering assembly controls the two internal threaded barrels to move synchronously and in opposite directions horizontally and linearly; A single threaded rod is connected to the inner threaded tube by a thread, a hexagonal hole is provided at the top of the single threaded rod, a hexagonal column is provided in the hexagonal hole, a countersunk groove is provided at the top of the hexagonal column, a cylinder is provided in the large diameter hole groove of the countersunk groove, the bottom of the cylinder is conical, a first guide column is fixed to the bottom of the cylinder, the first guide column is provided in the small diameter hole groove of the countersunk groove, a plurality of ball grooves are provided on the inner side wall of the large diameter hole groove of the countersunk groove, and the ball grooves are connected to the outer side of the hexagonal column, A ball is arranged in the ball groove, a plurality of positioning grooves adapted to the ball are provided on the inner side wall of the hexagonal hole, a circular ring plate is fixed on the top of the hexagonal column, a second guide column is arranged on the inner ring wall of the circular ring plate, the second guide column is fixed to the cylinder, a spring is sleeved on the second guide column, the two ends of the spring are in contact with the cylinder and the circular ring plate respectively, a locking plate is fixed on the outer side wall of the hexagonal column, the side pressure roller is sleeved on the internal threaded cylinder through a connecting bearing, and the locking plate is in contact with the annular surface of the inner ring of the connecting bearing; Multiple longitudinal pressure mechanisms; Among them, the plurality of longitudinal pressing mechanisms and the plurality of centering components are distributed in a straight line on the top of the workbench, and the plurality of longitudinal pressing mechanisms and the plurality of centering components are distributed in a staggered manner.

2. A bending machine according to claim 1, characterized in that: A supporting assembly is provided at the bottom of the workbench; Wherein, the support assembly includes a welding bracket, and a plurality of support columns for the top of the welding bracket and the bottom of the workbench are fixed between the two.

3. A bending machine according to claim 2, characterized in that: A plurality of universal wheels are fixed on the bottom of the welding bracket.

4. A bending machine according to claim 2, characterized in that: A plurality of first threaded holes are provided at the bottom of the welding bracket, and a supporting mechanism is provided in the first threaded holes; Wherein, the supporting mechanism comprises a threaded column, and the threaded column is connected in the first threaded hole through threads, and the top end and the bottom end of the threaded column are respectively fixed with a rotating plate and a bottom plate.

5. A bending machine according to claim 4, characterized in that: A rubber pad is fixed to the bottom of the bottom plate.

6. A bending machine according to claim 1, characterized in that: The centering component comprises a fixed platform, which is fixed on the workbench, and has two slide grooves on the fixed platform. A rotating hole connected to the two slide grooves is provided on the fixed platform, and a double-threaded rod is rotatably installed in the rotating hole. Two first moving blocks are sleeved on the double-threaded rod, and the double-threaded rod forms a transmission cooperation with the two first moving blocks through a left-handed thread and a right-handed thread respectively, and the two first moving blocks are slidably arranged in the two slide grooves respectively; Wherein, the two internal threaded cylinders in the locking mechanism are respectively fixed on the tops of the two first moving blocks.

7. A bending machine according to claim 6, characterized in that: Both ends of the double-threaded rod are fixed with a six-sided column coaxially arranged therewith.

8. The bending machine according to claim 1, characterized in that: The longitudinal pressing mechanism includes two vertical adjusting components and two second moving blocks, the second moving blocks are respectively connected to the two vertical adjusting components, the vertical adjusting components control the second moving blocks to move linearly up and down, and the two second moving blocks are jointly rotatably installed with a longitudinal pressing roller.

9. A bending machine according to claim 8, characterized in that: The vertical adjustment assembly includes a bearing seat, and support rollers are rotatably installed on two bearing seats together. A groove is provided on the top of the bearing seat, and a top plate is fixed on the top of the groove. A second threaded hole is provided on the top of the top plate, and an adjusting screw is rotatably installed in the second threaded hole. The second moving block contacts the inner walls on both sides of the groove, and one end of the adjusting screw is rotatably installed on the top of the second moving block.

10. A bending machine according to claim 9, characterized in that: A handle is fixed on the other end of the adjusting screw.

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