A cold bending forming machine for producing parts of a toilet rack

Abstract

The present invention discloses a cold bending forming machine for the production of toilet rack parts, which relates to the technical field of cold bending processing. It includes a driving body, on the top of the driving body, a hydraulic rod is fixedly installed, the telescopic end of the hydraulic rod is fixedly connected to a lifting table that slides inside the driving body, motors are fixedly installed inside the driving body and on the lifting table, a lower pressing roller and an upper pressing roller are arranged outside the driving body, and it further includes a supporting mechanism. The supporting mechanism includes a clamping block rotatably connected inside the upper pressing roller, and a pushing plate is slidably connected inside the upper pressing roller. In this application, when the pressure between the flat steel and the upper pressing roller decreases, the clamping block deflects to extrude and support the inner wall of the flat steel, increasing the friction force received by the flat steel during transportation, avoiding the flat steel from slipping during the cold bending process, ensuring the bending accuracy and processing efficiency of the flat steel. When the pressure between the flat steel and the upper pressing roller increases, it prevents the flat steel from being distorted due to excessive bending degree, improving the cold bending processing effect of the flat steel.

Description

Technical Field

[0001] The present invention relates to the technical field of cold bending processing, and particularly to a cold bending forming machine for producing parts of a toilet rack. Background Art

[0002] A toilet rack is a functional rack installed on a toilet and used to assist in the use of the toilet. It mainly plays a stable supporting role. It can not only provide additional support for users, optimize the sitting posture experience, but also provide a stable grasping and supporting point for people with limited mobility during the sitting and standing process, improving the safety and convenience of using the toilet. To ensure firmness, the toilet rack is generally made of metals such as stainless steel and aluminum alloy. At the same time, to ensure material properties and meet the shape design requirements of parts, the parts of the toilet rack need to be shaped by a cold bending forming device.

[0003] A cold bending forming machine is a metal processing device that, at room temperature, applies an external force to a metal material to deform the metal and form profiles or components with specific shapes. The traditional cold bending machine mainly consists of a driving mechanism, two lower pressing rollers, and an upper pressing roller that can adjust its height. The three pressing rollers are in a triangular shape. A steel bar is inserted between the three pressing rollers, and the three pressing rollers convey the flat steel by rotating and squeeze the flat steel during the conveying process to achieve the bending processing of the steel bar. Among them, adjusting the height of the upper pressing roller can change the bending degree of the steel bar.

[0004] The horseshoe-shaped support ring on the toilet rack is made by bending a flat steel. The bending degrees at different positions on the support ring are different. When using the cold bending machine to bend the flat steel, it is necessary to continuously adjust the height of the upper pressing roller. When the upper pressing roller rises to reduce the bending degree of the flat steel, the pressure exerted on the flat steel by the pressing roller decreases. At this time, the friction force between the pressing roller and the flat steel decreases, resulting in a slipping phenomenon of the flat steel between the three pressing rollers during processing, thereby affecting the bending accuracy and processing efficiency of the flat steel. Summary of the Invention

[0005] The purpose of the present invention is to: solve the problem that when the upper pressing roller rises to reduce the bending degree of the flat steel, the pressure exerted on the flat steel by the pressing roller decreases, and at this time, the friction force between the pressing roller and the flat steel decreases, resulting in slipping of the flat steel between the three pressing rollers during processing, and to propose a cold bending forming machine for producing parts of a toilet rack.

[0006] To achieve the above purpose, the present invention adopts the following technical solution: A cold bending forming machine for producing parts of a toilet rack, including a driving body, a hydraulic rod is fixedly installed on the top of the driving body, the telescopic end of the hydraulic rod is fixedly connected to a lifting table that slides inside the driving body, motors are fixedly installed inside the driving body and on the lifting table, a lower pressing roller and an upper pressing roller are arranged outside the driving body, and further includes:

[0007] Support mechanism, the support mechanism includes a clamping block rotatably connected inside the upper pressing roller, a push plate is slidably connected inside the upper pressing roller, a pushing component is arranged inside the upper pressing roller, and a transmission unit is arranged on one side of the pushing component;

[0008] When the hydraulic rod drives the upper pressing roller to rise and reduce the bending angle of the flat steel, the push plate pushes the clamping block to deflect, so that the clamping block supports and clamps the inner side of the flat steel; when the hydraulic rod drives the upper pressing roller to descend and increase the bending angle of the flat steel, the push plate reversely pushes the clamping block to deflect, so that the clamping block applies pressure to the outer wall of the flat steel.

[0009] As a further description of the above technical solution: the pushing component includes a threaded column rotatably connected inside the upper pressing roller, a connecting frame threadedly connected to the outside of the threaded column and rotatably connected to the push plate, a positioning rod is slidably connected inside the connecting frame, the positioning rod restricts the connecting frame from rotating, and the rotation of the threaded column drives the connecting frame to move horizontally.

[0010] As a further description of the above technical solution: the transmission unit includes a gear fixed to the outer end of the threaded column, and a toothed plate is meshed and connected to one side of the gear.

[0011] As a further description of the above technical solution: it further includes a straightening component, the straightening component includes a sleeve slidably connected to the outside of the lower pressing roller and the upper pressing roller and fixed to the motor drive shaft, and a groove for restricting the flat steel is formed between the lower pressing roller or the upper pressing roller and the sleeve.

[0012] As a further description of the above technical solution: a front mounting plate fixed to the toothed plate is fixedly connected to one side of the driving body, a connecting plate is rotatably connected to one side of the lower pressing roller, an electric telescopic rod with a telescopic end fixed to the connecting plate is fixedly installed on the front mounting plate, and an adjusting component for adjusting the position of the upper pressing roller is further included.

[0013] As a further description of the above technical solution: it further includes a protection mechanism, the protection mechanism includes a mounting frame slidably connected inside the upper pressing roller, a baffle is fixedly connected to the mounting frame, and one end of the threaded column is fixedly connected with a spiral groove rod penetrating through the mounting frame.

[0014] As a further description of the above technical solution: a connecting unit is arranged outside the spiral groove rod, the connecting unit includes a collar slidably connected inside the upper pressing roller and sleeved outside the spiral groove rod, a convex block embedded in the spiral groove of the spiral groove rod is arranged on the inner wall of the collar, the rotation of the spiral groove rod drives the collar to slide inside the upper pressing roller through the convex block, and a spring is fixedly connected between the collar and the mounting frame.

[0015] As a further description of the above technical solution: The adjusting component includes a slider slidably connected inside the front mounting plate and fixed to the positioning rod. A square rod is slidably connected inside the slider. The outer end of the square rod is fixedly connected to a fixing frame rotatably connected to the upper pressing roller. A lead screw rotatably connected to the square rod is threadedly connected inside the slider.

[0016] In summary, due to the adoption of the above technology, a cold bending forming machine for producing parts of a toilet rack, the beneficial effects of the present invention are:

[0017] In this application, when the upper pressing roller is adjusted to a higher position to reduce the bending degree of the flat steel and the pressure between the flat steel and the upper pressing roller is reduced, the push plate is used to push the clamping block, causing the clamping block to deflect and squeeze and support the inner wall of the flat steel, increasing the friction force received by the flat steel during transportation, thereby avoiding the slipping phenomenon of the flat steel during the cold bending process, ensuring the bending accuracy and processing efficiency of the flat steel. Moreover, when the upper pressing roller is adjusted to a lower position to increase the bending degree of the flat steel and the pressure between the flat steel and the upper pressing roller is increased, the push plate pushes the clamping block to deflect in the opposite direction. This deflection of the clamping block not only cancels the extrusion support for the inner wall of the flat steel, avoiding the deformation of the inner wall of the flat steel caused by excessive pressure, but also the clamping block can apply pressure to the side wall of the flat steel, preventing the flat steel from twisting due to excessive bending degree causing material accumulation on the inner side, thereby improving the cold bending processing effect of the flat steel and ensuring the production quality of the toilet rack support ring.

[0018] In addition, by the transmission of the pushing component and the transmission unit in this application, the state of the clamping block can be automatically switched with the change of the bending angle of the flat steel. Therefore, during the bending process of the toilet rack support ring, while ensuring the processing quality of the parts, the production efficiency can be improved, achieving the effect of saving the production cost of the toilet rack parts.

[0019] The width of the constraint groove formed between the lower pressing roller and the upper pressing roller and the sleeve can be adjusted, facilitating the processing of flat steel with different thicknesses by this device, and thus making the device have a wider application range. Moreover, when the flat steel to be processed is twisted and bent, by controlling the telescopic movement of the electric telescopic rod, the lower pressing roller and the sleeve can clamp the deformed flat steel, enabling the flat steel to return to a straight state under the clamping force, thereby contributing to improving the processing accuracy and quality of the flat steel and reducing the scrap rate of the material.

[0020] Through the protection mechanism, the slot hole where the clamping block on the upper pressing roller can be closed before the pressure between the flat steel and the upper pressing roller increases, avoiding the situation of non-smooth transition on the inner wall after the flat steel is bent, and further improving the cold bending processing effect of the flat steel. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Shows the overall schematic diagram provided according to an embodiment of the present invention;

[0022] Figure 2 Shows an exploded view of the front mounting plate provided according to an embodiment of the present invention;

[0023] Figure 3 Shows a schematic cross-sectional view of the lower pressing roller provided according to an embodiment of the present invention;

[0024] Figure 4 Shows an exploded view of the upper pressing roller provided according to an embodiment of the present invention;

[0025] Figure 5 Shows a schematic cross-sectional view of the upper pressing roller provided according to an embodiment of the present invention;

[0026] Figure 6 Shows a schematic cross-sectional view of the adjusting assembly provided according to an embodiment of the present invention;

[0027] Figure 7 Shows a schematic view of the clamping block provided according to an embodiment of the present invention;

[0028] Figure 8 Shows a schematic view of the push plate provided according to an embodiment of the present invention;

[0029] Figure 9 Shows a schematic view of the mounting bracket provided according to an embodiment of the present invention;

[0030] Figure 10 Shows a schematic diagram of the clamping block state switching provided according to an embodiment of the present invention.

[0031] Legend:

[0032] 10. Driving body; 11. Hydraulic rod; 12. Lifting platform; 13. Lower pressing roller; 14. Upper pressing roller; 15. Motor;

[0033] 20. Straightening assembly; 21. Sleeve; 22. Front mounting plate; 23. Connecting plate; 24. Electric telescopic rod;

[0034] 30. Support mechanism; 31. Clamping block; 32. Push plate; 33. Pushing assembly; 331. Connecting frame; 332. Threaded column; 333. Positioning rod; 34. Transmission unit; 341. Gear; 342. Rack;

[0035] 40. Protection mechanism; 41. Mounting bracket; 42. Baffle; 43. Spiral groove rod; 44. Connecting unit; 441. Collar; 442. Spring;

[0036] 50. Adjusting assembly; 51. Slide block; 52. Lead screw; 53. Square rod; 54. Fixed frame. Detailed implementation manners

[0037] The following will clearly and completely describe a cold bending forming machine for producing parts of a toilet rack in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0038] As Figures 1-10 shown, a cold bending forming machine for producing parts of a toilet rack provided by the present invention includes a driving body 10. A hydraulic rod 11 is fixedly installed on the top of the driving body 10. The telescopic end of the hydraulic rod 11 is fixedly connected to a lifting table 12 that slides inside the driving body 10. Motors 15 are fixedly installed inside the driving body 10 and on the lifting table 12. Two lower pressing rollers 13 and an upper pressing roller 14 are arranged outside the driving body 10. The upper pressing roller 14 is located directly above the two lower pressing rollers 13. When bending a flat steel, the height of the lifting table 12 and the upper pressing roller 14 is adjusted by controlling the telescopic movement of the hydraulic rod 11 according to the required bending degree. Then, the flat steel is inserted between the upper pressing roller 14 and the two lower pressing rollers 13. The motors 15 are used to drive the two lower pressing rollers 13 to rotate in reverse and drive the upper pressing roller 14 to rotate forward, driving the flat steel to pass through the gap between the upper pressing roller 14 and the two lower pressing rollers 13. The flat steel is bent during the conveying process by the extrusion of the lower pressing rollers 13 and the upper pressing roller 14. Generally, a speed reducer is installed between the motor 15 and the lower pressing rollers 13 and the upper pressing roller 14 to increase the torque of the lower pressing rollers 13 and the upper pressing roller 14, so that the lower pressing rollers 13 and the upper pressing roller 14 have sufficient force to process the flat steel.

[0039] After the upper pressing roller 14 is adjusted to a higher position, since the distance between the lower pressing rollers 13 and the upper pressing roller 14 increases, the bending degree of the flat steel becomes smaller and the extrusion force received decreases. On the contrary, after the upper pressing roller 14 is adjusted to a lower position, the distance between the lower pressing rollers 13 and the upper pressing roller 14 decreases, the bending degree of the flat steel becomes larger, and the extrusion force received increases. When bending the flat steel into a horseshoe-shaped support ring of the toilet rack, it is necessary to continuously adjust the bending degree of the flat steel. To prevent the extrusion force between the upper pressing roller 14 and the flat steel from decreasing and causing the flat steel to slip during the moving and bending process, a support mechanism 30 is further included. The support mechanism 30 includes clamping blocks 31 rotatably connected inside the upper pressing roller 14. A plurality of clamping blocks 31 are arranged at equal circumferential intervals around the axis of the upper pressing roller 14. A push plate 32 is slidably connected inside the upper pressing roller 14.

[0040] Referring to Figure 10, when the hydraulic rod 11 drives the upper pressure roller 14 to rise and reduce the bending angle of the flat steel, the push plate 32 pushes the clamping block 31 to deflect, so that the clamping block 31 supports and clamps the inner side of the flat steel. At this time, the upper pressure roller 14 increases the friction force with the inner wall of the flat steel through the clamping block 31, so that the rotation of the upper pressure roller 14 can smoothly drive the flat steel to move, realizing the bending processing of the flat steel and avoiding the reduction of the bending accuracy due to slipping when the flat steel moves;

[0041] When the hydraulic rod 11 drives the upper pressure roller 14 to descend and increase the bending angle of the flat steel, the push plate 32 pushes the clamping block 31 to deflect in the reverse direction, so that the clamping block 31 applies pressure to the outer wall of the flat steel. At this time, the deflection of the clamping block 31 no longer squeezes the inner wall of the flat steel, avoiding the occurrence of dents on the inner wall of the flat steel due to excessive extrusion between the clamping block 31 and the flat steel, thereby improving the bending processing effect of the flat steel. At the same time, since the bending degree of the flat steel increases at this time, during the bending process, the flat steel is prone to tilt and twist due to the accumulation of materials on the inner side. By applying pressure to the outer wall of the flat steel through the clamping block 31, the tilt and twist of the flat steel other than bending can be prevented, thereby further improving the cold bending effect of the flat steel.

[0042] Refer to Figure 5 and Figure 7 , in order to make the state switching of the clamping block 31 cooperate with the adjustment of the bending degree of the flat steel, a pushing component 33 is arranged inside the upper pressure roller 14, and a transmission unit 34 is arranged on one side of the pushing component 33. The pushing component 33 includes a threaded column 332 rotatably connected inside the upper pressure roller 14. An adjusting frame 331 that is rotatably connected to the push plate 32 is threadedly connected to the outside of the threaded column 332. A positioning rod 333 is slidably connected inside the adjusting frame 331. The positioning rod 333 is rotatably connected to the upper pressure roller 14. The positioning rod 333 restricts the adjusting frame 331 from rotating. The rotation of the threaded column 332 drives the adjusting frame 331 to move horizontally. By pushing the push plate 32 through the adjusting frame 331, the horizontal movement of the push plate 32 is realized. During the rotation of the upper pressure roller 14, the clamping block 31 and the push plate 32 are driven to rotate, and the adjusting frame 331 does not rotate with the push plate 32.

[0043] Refer to Figure 3, the transmission unit 34 includes a gear 341 fixed to the outer end of the threaded column 332. One side of the gear 341 is meshed with a toothed plate 342. When the height of the upper pressure roller 14 is not adjusted, the gear 341 meshed with the toothed plate 342 will not rotate. Therefore, the pushing assembly 33 will not push the push plate 32, so that the clamping block 31 can maintain a stable state. When the height of the upper pressure roller 14 is adjusted, the movement of the upper pressure roller 14 drives the threaded column 332 and the gear 341 to move, causing the gear 341 to roll and rotate on the toothed plate 342, and then driving the threaded column 332 to rotate. The push plate 32 is pushed by the pushing assembly 33 to realize the deflection of the clamping block 31. When the upper pressure roller 14 moves upward, the gear 341 rotates forward to deflect the clamping block 31 to support and clamp the inner side of the flat steel. When the upper pressure roller 14 moves downward, the gear 341 rotates reversely to deflect the clamping block 31 to apply pressure to the outer wall of the flat steel, so as to realize the adaptive change of the state of the clamping block 31 with the bending angle of the flat steel, so that the clamping block 31 can play the roles of anti-slip and anti-torsion.

[0044] Referring to Figure 2 and Figure 3 , some flat steels will be laterally bent and twisted under external forces during the preliminary processing or transportation, making it impossible to perform bending processing. In order to make full use of these materials and reduce the scrap rate, a straightening assembly 20 is further included. The straightening assembly 20 includes a sleeve 21 slidably connected to the outside of the lower pressure roller 13 and the upper pressure roller 14 and fixed to the drive shaft of the motor 15. A groove for restraining the flat steel is formed between the lower pressure roller 13 or the upper pressure roller 14 and the sleeve 21. When the flat steel is bent, the flat steel can be positioned through the groove to prevent the flat steel from tipping over during bending. In order to facilitate the insertion of the flat steel into the groove, the width of the groove is generally larger than the thickness of the flat steel, and there are usually raised rust spots on the outer wall of the flat steel. Therefore, it is difficult for the inner wall of the groove to fit completely with the flat steel, which makes the anti-tipping and anti-torsion effects of the groove limited. The setting of the clamping block 31 can further enhance the anti-tipping and anti-torsion effects during the bending of the flat steel. One side of the driving body 10 is fixedly connected with a front mounting plate 22 fixed to the toothed plate 342. One side of the lower pressure roller 13 is rotatably connected with a connecting plate 23. An electric telescopic rod 24 with a telescopic end fixed to the connecting plate 23 is fixedly installed on the front mounting plate 22. By controlling the telescopic movement of the electric telescopic rod 24, the connecting plate 23 and the lower pressure roller 13 can be driven to move, and the width of the groove between the lower pressure roller 13 and the sleeve 21 can be adjusted to facilitate the bending processing of flat steels with different thicknesses. After increasing the width of the groove, flat steels with lateral bending and slight torsion can also be placed in the groove, and then by controlling the electric telescopic rod 24 to extend, the lower pressure roller 13 and the sleeve 21 clamp the flat steel in the groove to straighten the flat steel for subsequent bending of the flat steel.

[0045] Referring to Figure 7 , Figure 8 and Figure 9, when the clamping block 31 presses against the inner wall of the extruded flat steel, it needs to penetrate the outer wall of the upper pressing roller 14, resulting in slot holes outside the upper pressing roller 14. When the extrusion force between the upper pressing roller 14 and the flat steel increases, the inner side of the flat steel is prone to uneven transitions. To avoid this problem, a protection mechanism 40 is also included. The protection mechanism 40 includes a mounting frame 41 slidably connected to the inside of the upper pressing roller 14. A baffle 42 is fixedly connected to the mounting frame 41. Several baffles 42 are respectively slidably connected to the respective slot holes of the upper pressing roller 14. One end of the threaded rod 332 is fixedly connected to a spiral groove rod 43 that penetrates the mounting frame 41. A connecting unit 44 is arranged outside the spiral groove rod 43. The connecting unit 44 includes a collar 441 slidably connected to the inside of the upper pressing roller 14 and sleeved outside the spiral groove rod 43. The inner wall of the collar 441 is provided with a convex block embedded in the spiral groove of the spiral groove rod 43. When the upper pressing roller 14 is adjusted in height, the threaded rod 332 rotates to drive the spiral groove rod 43 to rotate. The rotation of the spiral groove rod 43 drives the collar 441 to slide inside the upper pressing roller 14 through the convex block. A spring 442 is fixedly connected between the collar 441 and the mounting frame 41. The movement of the collar 441 drives the spring 442 to push the mounting frame 41, thereby driving the baffle 42 to open or close the slot hole of the upper pressing roller 14. Through the transmission of the connecting unit 44 and the spiral groove rod 43, when the upper pressing roller 14 is lowered to increase the pressure on the flat steel, the baffle 42 can automatically close the slot hole of the upper pressing roller 14, improving the automation degree of the device and accelerating the processing efficiency. The purpose of setting the spring 442 is to enable the baffle 42 to still move after the slot hole is closed, allowing the spiral groove rod 43, the collar 441, and the threaded rod 332 to still move, so that the upper pressing roller 14 can continue to be lowered to increase the pressure.

[0046] Referring to Figure 5 and Figure 6 , in order to make the slot width between the upper pressing roller 14 and the sleeve 21 match the slot between the lower pressing roller 13 and the sleeve 21, an adjusting component 50 for adjusting the position of the upper pressing roller 14 is also included. The adjusting component 50 includes a slider 51 slidably connected to the inside of the front mounting plate 22 and fixed to the positioning rod 333. A square rod 53 is slidably connected to the inside of the slider 51. The outer end of the square rod 53 is fixedly connected to a fixing frame 54 rotatably connected to the upper pressing roller 14. A lead screw 52 rotatably connected to the square rod 53 is threadedly connected to the inside of the slider 51. Manually rotating the lead screw 52 drives the square rod 53 to slide inside the slider 51, driving the upper pressing roller 14 to move horizontally through the fixing frame 54, adjusting the slot width between the upper pressing roller 14 and the sleeve 21. Moreover, the fixing frame 54 and the slider 51 can move up and down with the upper pressing roller 14, driving the positioning rod 333 to move, so that the positioning rod 333 can always position the connecting frame 331.

[0047] Working principle: Control the electric telescopic rod 24 to contract, driving the connecting plate 23 and the lower pressing roller 13 to move, increasing the width of the groove between the lower pressing roller 13 and the sleeve 21. Place the flat steel with transverse bending and slight torsion into the groove, and then control the electric telescopic rod 24 to extend so that the lower pressing roller 13 and the sleeve 21 clamp the flat steel in the groove to straighten the flat steel. Then, draw out the flat steel. Manually rotate the lead screw 52 to drive the square rod 53, the fixing frame 54, and the upper pressing roller 14 to move, so that the width of the groove between the upper pressing roller 14 and the sleeve 21 is the same as the thickness of the flat steel. Then, control the hydraulic rod 11 to extend or contract, driving the lifting platform 12, the motor 15 inside it, the sleeve 21, and the upper pressing roller 14 to move, and adjusting the height of the upper pressing roller 14 to control the initial bending degree of the flat steel;

[0048] Drive the upper pressing roller 14 and the two lower pressing rollers 13 to rotate respectively through the motor 15. The rotation directions of the upper pressing roller 14 and the lower pressing rollers 13 are opposite. Place one end of the flat steel into the groove and extend it between the upper pressing roller 14 and the two lower pressing rollers 13. Under the action of the friction between the lower pressing rollers 13, the upper pressing roller 14 and the flat steel, the flat steel moves and is conveyed between the upper pressing roller 14 and the two lower pressing rollers 13. At the same time, under the extrusion of the upper pressing roller 14 and two lower pressing rollers 13, the flat steel bends;

[0049] During the bending process of the flat steel, when the upper pressing roller 14 is raised to reduce the bending degree of the flat steel, the upper pressing roller 14 rises, driving the threaded column 332, the gear 341, the fixing frame 54, the square rod 53, the slider 51, and the positioning rod 333 to move upward. The gear 341 rolls and rotates on the toothed plate 342. The gear 341 drives the threaded column 332 and the spiral groove rod 43 to rotate. The rotation of the spiral groove rod 43 drives the collar 441 to slide inside the upper pressing roller 14 through the convex block. The movement of the collar 441 drives the spring 442 to push the mounting frame 41, driving the baffle 42 to move and open the slot hole of the upper pressing roller 14. Then, the threaded column 332 rotates, and the connecting frame 331 positioned by the positioning rod 333 moves towards the direction close to the spiral groove rod 43, driving the push plate 32 to push the clamping block 31 to deflect, so that the clamping block 31 extends out of the slot hole to squeeze the inner wall of the flat steel, increasing the friction during the conveyance of the flat steel and preventing slipping;

[0050] When the upper pressing roller 14 is lowered to increase the bending degree of the flat steel, according to the above principle, the baffle 42 closes the slot hole of the upper pressing roller 14, and the clamping block 31 deflects in the opposite direction to squeeze the outer wall of the flat steel, preventing the inner wall of the flat steel from being overly uneven, inclined, and twisted due to excessive pressure.

[0051] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical concept of the present invention, makes equivalent replacements or changes, and should be covered within the protection scope of the present invention.

Claims

1. A cold roll forming machine for producing toilet frame parts, comprising a driving body (10), a hydraulic rod (11) fixedly mounted on the top of the driving body (10), a telescopic end of the hydraulic rod (11) fixedly connected to a lifting platform (12) sliding inside the driving body (10), a motor (15) fixedly mounted inside the driving body (10) and on the lifting platform (12), a lower pressure roller (13) and an upper pressure roller (14) being arranged on the outer side of the driving body (10), characterized in that: Also includes: A support mechanism (30), the support mechanism (30) comprising a clamping block (31) rotatably connected to the interior of an upper pressure roller (14), a push plate (32) slidably connected to the interior of the upper pressure roller (14), a pushing component (33) being arranged inside the upper pressure roller (14), and a transmission unit (34) being arranged on one side of the pushing component (33); When the hydraulic rod (11) drives the upper pressure roller (14) to rise and reduce the bending angle of the flat steel, the push plate (32) pushes the clamping block (31) to deflect, so that the clamping block (31) supports and clamps the inner side of the flat steel; when the hydraulic rod (11) drives the upper pressure roller (14) to descend and increase the bending angle of the flat steel, the push plate (32) pushes the clamping block (31) to deflect in the opposite direction, so that the clamping block (31) applies pressure to the outer wall of the flat steel.

2. A cold roll forming machine for producing toilet frame parts according to claim 1, characterized in that: The pushing assembly (33) comprises a threaded column (332) rotatably connected to the interior of the upper pressure roller (14); the threaded column (332) is externally threadedly connected to a connecting frame (331) rotatably connected to the push plate (32); the connecting frame (331) is internally slidably connected to a positioning rod (333); the positioning rod (333) limits the connecting frame (331) from rotating; the threaded column (332) rotates to drive the connecting frame (331) to move horizontally.

3. A cold roll forming machine for producing toilet frame parts according to claim 2, characterized in that: The transmission unit (34) comprises a gear (341) fixed to the outer end of the threaded column (332), and one side of the gear (341) is meshingly connected with a toothed plate (342).

4. A cold roll forming machine for producing toilet frame parts according to claim 3, characterized in that: It also includes a straightening assembly (20), the straightening assembly (20) including a sleeve (21) slidably connected to the outside of the lower pressing roller (13) and the upper pressing roller (14) and fixed to the drive shaft of the motor (15), and a groove for constraining the flat steel is formed between the lower pressing roller (13) or the upper pressing roller (14) and the sleeve (21).

5. A cold roll forming machine for producing toilet frame parts according to claim 4, characterized in that: A front frame plate (22) fixed to the tooth plate (342) is fixedly connected to one side of the driving body (10); a connecting plate (23) is rotatably connected to one side of the lower pressure roller (13); an electric telescopic rod (24) whose telescopic end is fixed to the connecting plate (23) is fixedly mounted on the front frame plate (22); and an adjustment component (50) for adjusting the position of the upper pressure roller (14) is also included.

6. A roll forming machine for producing toilet frame parts according to claim 2, characterized in that: It also includes a protection mechanism (40), the protection mechanism (40) including a mounting frame (41) slidably connected to the interior of the upper pressure roller (14), a baffle (42) fixedly connected to the mounting frame (41), and one end of the threaded column (332) fixedly connected to a spiral groove rod (43) penetrating the mounting frame (41).

7. A roll forming machine for producing toilet frame parts according to claim 6, characterized in that: A connecting unit (44) is arranged outside the spiral groove rod (43), and the connecting unit (44) comprises a sleeve ring (441) which is slidably connected to the inside of the upper pressure roller (14) and sleeved on the outside of the spiral groove rod (43); the inner wall of the sleeve ring (441) is provided with a protrusion embedded in the spiral groove of the spiral groove rod (43); the spiral groove rod (43) rotates to drive the sleeve ring (441) to slide inside the upper pressure roller (14) through the protrusion; a spring (442) is fixedly connected between the sleeve ring (441) and the mounting frame (41).

8. The cold roll forming machine for producing toilet frame parts according to claim 5, characterized in that: The adjustment assembly (50) comprises a slider (51) slidably connected to the interior of the front frame plate (22) and fixed to the positioning rod (333); a square rod (53) is slidably connected to the interior of the slider (51); an outer end of the square rod (53) is fixedly connected to a fixing frame (54) rotatably connected to the upper pressure roller (14); and a screw rod (52) rotatably connected to the square rod (53) is internally threadedly connected to the slider (51).

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