Bending equipment for processing printer selenium drum forming controller steel sheet

Abstract

The invention relates to the field of metal plate bending equipment, in particular to bending equipment for printer selenium drum forming controller steel sheet machining. Bending equipment for printer selenium drum forming controller steel sheet machining comprises a bottom frame, a hydraulic frame, a hydraulic machine, a lower supporting plate, an upper supporting plate, a clamping plate, replacement assemblies, a positioning assembly, a material ejecting assembly and the like, the top of the bottom frame is connected with the lower supporting plate, the bottom of the hydraulic machine is connected with the upper supporting plate, and the replacement assemblies are arranged on the lower supporting plate and the upper supporting plate. The bottom frame is connected with a positioning assembly used for aligning the position of the steel sheet, and the rear end of the lower supporting plate and the rear end of the upper supporting plate are provided with material ejecting assemblies used for discharging. The machining requirements of steel sheets of different sizes can be easily met through the integrally-bent replacement assembly, accurate positioning of the steel sheets can be automatically completed through the positioning assembly, the requirement for the skill level of workers is lowered, and therefore the production speed and the production efficiency are greatly improved.

Description

Technical Field

[0001] The invention relates to the field of metal plate bending equipment, and in particular to a bending equipment used for processing steel sheets of printer drum forming controllers. Background Art

[0002] The printer toner cartridge molding controller is a professional device used in the toner cartridge production process. Its main function is to control the printer by sending specific test information during the production or testing stage of the toner cartridge to evaluate the quality of the toner cartridge. The controller can control the printer instead of the computer, send specific information for testing the quality of the toner cartridge, and may control multiple different printers at the same time. In this way, the key performance indicators of the toner cartridge, such as printing effect and imaging quality, can be efficiently evaluated to complete the inspection of the printer. The steel sheet shell of the controller needs to be punched, cut, bent, and other steps during the production process.

[0003] The bending operation of the steel sheet of the printer drum forming controller is completed manually with the help of a hydraulic bending machine. The operator holds the steel sheet to be processed and places it on the hydraulic bending machine. The blade of the hydraulic bending machine moves up and down. Each operation corresponds to a 90-degree bend of the steel sheet. The position of the steel sheet needs to be readjusted after each bending. The production speed depends on the skill level of the operator. It is difficult for ordinary workers to align and the efficiency is low. Summary of the invention

[0004] In order to overcome the shortcomings of high requirements on workers and low production efficiency, the present invention provides an auxiliary bending device for processing a steel sheet of a printer drum forming controller.

[0005] A bending device for processing steel sheets of printer drum forming controllers comprises a base frame, a hydraulic frame and a hydraulic press. A hydraulic frame is arranged above the rear of the base frame, a hydraulic press is installed on the hydraulic frame, and the device also comprises a lower support plate, an upper support plate, a clamping plate, a replacement component, a positioning component and a material ejection component. The top of the base frame is connected to a lower support plate, the bottom of the hydraulic press is connected to an upper support plate, replacement components are arranged on the lower support plate and the upper support plate for replacing bending molds, a positioning component for aligning the position of the steel sheet is connected to the base frame, and a material ejection component for discharging is arranged at the rear ends of the lower support plate and the upper support plate.

[0006] In a preferred embodiment of the present invention, the replacement component includes a smooth sleeve, a threaded rod, a double-headed clamping rod, an upper mold and a lower mold. The opposite surfaces of the lower support plate and the upper support plate are connected with clamping plates. The lower support plate and the upper support plate are provided with clamping grooves. Smooth sleeves are installed on the front side of the bottom surface of the lower support plate and the front side of the top surface of the upper support plate. The smooth sleeve is hinged with a threaded rod. The double-headed clamping rod is slidably connected to the clamping grooves of the lower support plate and the upper support plate, and is threadedly connected to the threaded rod. Front positioning holes are provided at the front ends of the upper mold and the lower mold for limiting cooperation with the double-headed clamping rod. Rear positioning holes are provided at the rear ends of the upper mold and the lower mold for limiting cooperation with the clamping plate, so that the upper mold is connected to the bottom of the upper support plate and the lower mold is connected to the top of the lower support plate.

[0007] In a preferred embodiment of the present invention, the positioning assembly includes a positioning plate, a T-block, a rod, an elastic member I and a bending plate, the positioning plates are respectively connected to the left and right sides of the top of the rear end of the lower mold, a plurality of T-blocks are connected to the left and right sides of the top of the base frame, the bottom of the rod is slidably connected to the T-block, the opening directions of the rods connected to the T-blocks on the same side are the same, and the tops of the rods on the same side are commonly connected to a bending plate, the bending part of the bending plate is located at the front end, an elastic member I is sleeved on the bottom of the rod, one end of the elastic member I is connected to the T-block, and the other end is connected to the rod.

[0008] In a preferred embodiment of the present invention, the ejection assembly includes a connecting frame, an inclined H-plate, a rotating block, a torsion spring, a support plate, an ejection frame, an elastic member II and an extrusion rod. The connecting frame is connected to the rear end of the upper support plate, the bottom of the connecting frame is connected to the inclined H-plate, the top of the inclined H-plate is hinged with a rotating block, a torsion spring is sleeved on the connecting shaft between the rotating block and the inclined H-plate, one end of the torsion spring is connected to the inclined H-plate, and the other end is connected to the rotating block. A ejection opening is opened at the rear end of the lower mold, the support plate is connected to the rear end of the lower support plate, the ejection frame is slidably connected to the support plate, the front end of the ejection frame slides and passes through the ejection opening, the rear end of the ejection frame is connected to the extrusion rod, the rotating block is extruded and matched with the extrusion rod, and the ejection frame is connected with an elastic member II, one end of the elastic member II is connected to the ejection frame, and the other end is connected to the support plate.

[0009] In a preferred embodiment of the present invention, it also includes a cleaning component, which includes a mounting frame, a motor, a gear set and a cleaning roller. The mounting frame is connected to the top side of the base frame, and a motor is installed at the rear end of the mounting frame. The front end of the mounting frame is rotatably connected to two cleaning rollers, and the rear ends of the two cleaning rollers are connected by a gear set. The gear set is located on the outer side of the rear end of the mounting frame. The gear set includes two gears that mesh with each other, and the output shaft of the motor is connected to one of the gears.

[0010] In a preferred embodiment of the present invention, it also includes an air pump, an air pipe, an air nozzle and a placement rack. The air pump is installed under the base frame, the placement rack is connected to the bottom of the base frame, an annular groove is opened on the air nozzle, and the air nozzle is slidably connected to the placement rack through the annular groove structure thereon, and both ends of the air pipe are respectively connected to the air pump and the air nozzle.

[0011] In a preferred embodiment of the present invention, it also includes an expansion plate, a hinged rod, a locking rod and a locking plate. The hinged rod is connected to the top side of the base frame and is located on the left and right sides of the base frame respectively with the cleaning component. The expansion plate is hinged on the hinged rod, and the locking rod is connected to the front and rear sides of the top of the base frame. The locking plate is slidably connected to the expansion plate, and the locking plate is slidably connected to the locking rod along a specific track to fix the expansion plate.

[0012] In a preferred embodiment of the present invention, after the upper mold and the lower mold overlap, the width of the gap is equal to the thickness of the processed steel sheet.

[0013] Compared with the prior art, the present invention has the following advantages: 1. By replacing the overall bending components, the single three-sided bending operation of the controller steel sheet is realized, and it can easily adapt to the processing needs of steel sheets of different sizes. Through the positioning components, the precise positioning of the steel sheet can be automatically completed, reducing repetitive labor and human errors, and reducing the requirements for workers' skill levels, thereby greatly improving production speed and efficiency.

[0014] 2. Auxiliary discharging is achieved through the ejection component, which reduces the burden on operators, optimizes the discharging process, and improves production efficiency. The ejection component cooperates with the positioning component to reduce production delays and quality problems caused by human factors, thereby achieving the purpose of auxiliary production. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the front side of the present invention.

[0016] Figure 2 It is a schematic diagram of the partial structure of the rear side of the present invention.

[0017] Figure 3 It is a partial structural side view of the present invention.

[0018] Figure 4 It is a schematic diagram of the installation structure of the replacement component and the positioning component of the present invention.

[0019] Figure 5 It is a schematic diagram of the connection structure of the upper support plate, the double-head clamping rod and the upper mold of the present invention.

[0020] Figure 6 It is a three-dimensional structural cross-sectional view of the lower support plate of the present invention.

[0021] Figure 7 It is a schematic diagram of the installation structure of the top material assembly of the present invention.

[0022] Figure 8 It is a schematic diagram of the specific structure of the inclined H-plate, the rotating block and the torsion spring of the present invention.

[0023] Fig. 9It is a schematic diagram of the installation structure of the cleaning component of the present invention.

[0024] Fig.10 It is a schematic diagram of the connection structure of the air pump, air pipe and air nozzle of the present invention.

[0025] Fig.11 It is a schematic diagram of the connection structure of the expansion plate, the locking rod and the locking piece of the present invention.

[0026] In the above figures: 1, chassis, 11, lower support plate, 12, hydraulic frame, 13, hydraulic press, 14, upper support plate, 15, card plate, 16, card slot, 2, replacement assembly, 21, smooth sleeve, 22, threaded rod, 23, double-headed card rod, 24, upper mold, 25, lower mold, 251, top material port, 26, front positioning hole, 27, rear positioning hole, 3, positioning assembly, 31, positioning plate, 32, T block, 33, rod, 34, elastic member I, 35, bending Plate, 4, ejector assembly, 41, connecting frame, 42, inclined H plate, 43, rotating block, 44, torsion spring, 45, support plate, 46, ejector frame, 47, elastic part II, 48, extrusion rod, 5, cleaning assembly, 51, mounting frame, 52, motor, 53, gear set, 54, cleaning roller, 6, air pump, 61, air pipe, 62, air nozzle, 621, ring groove, 63, placement frame, 7, expansion plate, 71, hinged rod, 72, locking rod, 73, locking plate. DETAILED DESCRIPTION

[0027] Although the present invention may be described with respect to a particular application or industry, those skilled in the art will recognize the broader applicability of the present invention. Those of ordinary skill in the art will recognize that terms such as above, below, upward, downward, etc. are used to describe the drawings and do not represent limitations on the scope of the present invention as defined by the appended claims. Any numerical designations such as first or second are merely exemplary and are not intended to limit the scope of the present invention in any way.

[0028] Embodiment: A bending device for processing steel sheets of printer drum forming controllers, such as Figure 1-Figure 3 As shown, it includes a base frame 1, a hydraulic frame 12 and a hydraulic press 13. The hydraulic frame 12 is arranged on the upper rear part of the base frame 1, and the hydraulic press 13 is installed on the hydraulic frame 12. It also includes a lower support plate 11, an upper support plate 14, a clamping plate 15, a replacement component 2, a positioning component 3 and a top material component 4. The base frame 1 is connected to the top of the lower support plate 11, and the hydraulic press 13 is connected to the bottom of the hydraulic press 13. The lower support plate 11 and the upper support plate 14 are both provided with a replacement component 2 for replacing the bending mold. The base frame 1 is connected to a positioning component 3 for aligning the position of the steel sheet, and the rear ends of the lower support plate 11 and the upper support plate 14 are provided with a top material component 4 for discharging.

[0029] like Figure 4-Figure 6As shown, the replacement component 2 includes a smooth sleeve 21, a threaded rod 22, a double-headed clamping rod 23, an upper mold 24 and a lower mold 25. The lower support plate 11 and the upper support plate 14 are connected to the opposite surfaces with a clamping plate 15. The lower support plate 11 and the upper support plate 14 are provided with a clamping groove 16. Two smooth sleeves 21 are installed on the front side of the bottom of the lower support plate 11 and the front side of the top of the upper support plate 14. A threaded rod 22 is hinged on the two smooth sleeves 21. The double-headed clamping rod 23 is slidably connected to the lower support plate 11 and the upper support plate 14. The upper mold 24 and the lower mold 25 are threadedly connected to the threaded rod 22, and two front positioning holes 26 are opened at the front end of the upper mold 24 and the lower mold 25 for limiting the cooperation with the double-headed clamping rod 23. The upper mold 24 and the lower mold 25 have rear positioning holes 27 at the rear end for limiting the cooperation with the clamping plate 15, so that the upper mold 24 is connected to the bottom of the upper support plate 14, and the lower mold 25 is connected to the top of the lower support plate 11. After the upper mold 24 and the lower mold 25 overlap, the width of the gap is equal to the thickness of the processed steel sheet.

[0030] like Figure 4-Figure 6 As shown, the positioning assembly 3 includes a positioning plate 31, a T-block 32, a rod 33, an elastic member Ⅰ34 and a bending plate 35. The positioning plate 31 is respectively connected to the left and right sides of the top of the rear end of the lower mold 25 to limit the front and rear position of the steel sheet. A plurality of T-blocks 32 are connected to the left and right sides of the top of the bottom frame 1. The bottom of the rod 33 is slidably connected to the T-block 32. The opening directions of the rods 33 connected to the T-block 32 on the same side are the same, and the tops of the rods 33 on the same side are commonly connected with a bending plate 35. The bending plates 35 on both sides are used to adjust the left and right positions of the steel sheets. A bending portion inclined to both sides is provided at the front end of the bending plate 35. An elastic member Ⅰ34 is sleeved on the bottom of the rod 33. One end of the elastic member Ⅰ34 is connected to the T-block 32, and the other end is connected to the rod 33.

[0031] like Figure 7 and Figure 8 As shown, the ejection assembly 4 includes a connecting frame 41, an inclined H-plate 42, a rotating block 43, a torsion spring 44, a support plate 45, an ejection frame 46, an elastic member II 47 and an extrusion rod 48. The connecting frame 41 is connected to the rear end of the upper support plate 14, the bottom of the connecting frame 41 is connected to the inclined H-plate 42, the top of the inclined H-plate 42 is hinged with a rotating block 43, and two torsion springs 44 are sleeved on the connecting shaft between the rotating block 43 and the inclined H-plate 42. One end of the torsion spring 44 is connected to the inclined H-plate 42, and the other end is connected to the rotating block 43. A ejection opening 251 is provided at the rear end of the lower mold 25, and a support plate 45 is connected to the rear end of the lower support plate 11. Two ejection frames 46 are slidably connected to the support plate 45. The front end of the ejection frame 46 slides and passes through the ejection opening 251. The rear ends of the two ejection frames 46 are connected to extrusion rods 48. The extrusion rods 48 are located directly below the inclined H-plate 42. The rotating block 43 is extruded and matched with the extrusion rods 48. An elastic part II 47 is connected inside the ejection frame 46. One end of the elastic part II 47 is connected to the ejection frame 46, and the other end is connected to the support plate 45.

[0032] The staff puts the punched and cut steel sheet on the lower mold 25. During the pushing process, the two sides contact the bending plate 35, and the rear end contacts the positioning plate 31, so that the positioning is completed through the positioning component 3 and clamped on the lower mold 25. Then the hydraulic press 13 is turned on, and the hydraulic press 13 pushes the upper support plate 14 to move downward. The steel sheet bending process is completed by replacing the cooperation between the components of the component 2. When the hydraulic press 13 drives the upper support plate 14 to move upward, the components of the ejection component 4 cooperate to push the bent steel sheet out of the lower mold 25, which is convenient for the staff to take the material, thereby completing a steel sheet bending process. For different design sizes of the printer drum molding controller, the design size of the outer steel sheet is also different. Therefore, the upper mold 24 and the lower mold 25 are replaced by replacing the component 2 to adapt to steel sheets of different sizes, thereby increasing the practicality of the bending equipment. When bending the steel sheet, the hydraulic press 13 pushes the upper support plate 14 to move downward, so that the upper mold 24 also moves downward. After the upper mold 24 contacts the steel sheet, it pushes the steel sheet to move downward, the middle of the steel sheet moves downward, and the three sides turn upward. Since the width of the gap is equal to the thickness of the processed steel sheet after the upper mold 24 and the lower mold 25 overlap, the bending part of the steel sheet can be guaranteed to be smooth during the bending process. When bending steel sheets of different sizes, a tool is used to rotate the threaded rod 22, and the threaded rod 22 rotates on the smooth sleeve 21. The double-headed clamping rod 23 slides along the threaded rod 22 and slides forward in the clamping groove 16, so that the double-headed clamping rod 23 gradually leaves the front positioning hole 26. When the double-headed clamping rod 23 leaves the upper mold 24 and the lower mold 2 5, pull out the upper mold 24 and the lower mold 25 forward, and the rear positioning holes 27 of the upper mold 24 and the lower mold 25 are separated from the clamping plate 15, so as to remove the upper mold 24 and the lower mold 25. After replacing the upper mold 24 and the lower mold 25 with the matching steel sheet, put the lower mold 25 on the lower support plate 11, align the rear positioning holes 27 with the clamping plate 15, push the lower mold 25 backward, so that the clamping plate 15 is inserted into the rear positioning holes 27, and then rotate the threaded rod 22 by a tool to move the double-headed clamping rod 23 backward and insert it into the front positioning hole 26 of the lower mold 25, so as to complete the replacement of the lower mold 25, and the upper mold 24 is attached to the bottom of the upper support plate 14, and the fixing step is completed, so as to complete the replacement of the upper mold 24 and the lower mold 25; When the steel sheet is pushed in, the left and right sides of the steel sheet first contact with the bent part of the front end of the bending plate 35. During the pushing process, the steel sheet squeezes the bending plate 35 to both sides, and the rod 33 moves to both sides, thereby compressing the elastic member Ⅰ34 at the bottom. The staff provides a backward thrust, so that during the pushing process, due to the elastic force of the elastic members Ⅰ34 on both sides on the rod 33, a balanced state is gradually reached, that is, the pressure on the elastic members Ⅰ34 on both sides is equal, thereby ensuring that the steel sheet is in the middle position, and the rear end cutting part of the steel sheet contacts the positioning plate 31, ensuring that the rear end bending part of the steel sheet contacts the rear end of the lower mold 25, thereby aligning the bending position of the steel sheet, and then completing the bending of the steel sheet. When the outer side of the steel sheet flips up, the elastic member Ⅰ34 rebounds, pushing the rods 33 on both sides to move to the middle and reset; The inclined H plate 42 moves downward following the upper support plate 14. When the rotating block 43 moves downward and contacts the extrusion rod 48, it slightly pushes the extrusion rod 48 and the ejection frame 46 to move backward, and the elastic member II 47 is slightly stretched. Then the rotating block 43 turns upward around the inclined H plate 42 and twists the torsion spring 44. When the steel sheet is bent, the rotating block 43 passes through the extrusion rod 48, and the torsion spring 44 twists back. The rotating block 43 and the inclined H plate 42 are at the same inclination angle, and the elastic member II 47 rebounds, and the ejection frame 46 slides and resets. At this time, the extrusion rod 48 is located directly above the rotating block 43. Then the inclined H plate 42 moves upward following the upper support plate 14, and the rotating block 43 is connected to the upper support plate 14 from the bottom. The extrusion rod 48 contacts, and since the rotating block 43 cannot flip downward, the rotating block 43 pushes the extrusion rod 48 to slide forward through the inclined surface, and continues to slide forward along the top surface of the inclined H-plate 42, so that the ejection frame 46 slides forward on the support plate 45, and the front end of the ejection frame 46 contacts the steel sheet after bending, and pushes the steel sheet to move forward to complete the discharge, and the forward moving ejection frame 46 compresses the elastic part II 47. When the extrusion rod 48 is separated from the inclined H-plate 42, the elastic part II 47 rebounds and pushes the ejection frame 46 to reset backward, thereby completing the automatic discharge, reducing the contact area between the bent steel sheet and the lower mold 25, and facilitating the staff to take out the bent steel sheet.

[0033] like Fig. 9 As shown, it also includes a cleaning component 5, which includes a mounting frame 51, a motor 52, a gear set 53 and a cleaning roller 54. The mounting frame 51 is connected to the top side of the base frame 1, and the motor 52 is installed at the rear end of the mounting frame 51. The front end of the mounting frame 51 is rotatably connected to two cleaning rollers 54, and the rear ends of the two cleaning rollers 54 are connected through a gear set 53. The gear set 53 is located on the outer side of the rear end of the mounting frame 51. The gear set 53 includes two gears that mesh with each other, and the output shaft of the motor 52 is connected to one of the gears.

[0034] Before bending, the steel sheet needs to be punched and cut, and coolant is usually required during punching and cutting. During bending, the liquid on the surface of the steel sheet may affect the bending effect. Therefore, before inserting the steel sheet, the motor 52 is turned on. The motor 52 drives the gear set 53 to rotate, thereby driving the two cleaning rollers 54 to rotate in opposite directions. The steel sheet passes through the gap between the two cleaning rollers 54. When the staff pushes the steel sheet to move, from the front, the cleaning roller 54 on the left rotates clockwise and the cleaning roller 54 on the right rotates counterclockwise, so that the rotation direction of the cleaning roller 54 is opposite to the movement direction of the steel sheet, and the contact area between the steel sheet and the cleaning roller 54 is increased, thereby ensuring a good cleaning effect. The thrust of the staff plus the weight of the steel sheet enable the steel sheet to pass through the cleaning roller 54 smoothly to complete the cleaning.

[0035] like Figure 3 and Fig.10 As shown, it also includes an air pump 6, an air pipe 61, an air nozzle 62 and a placement rack 63. The air pump 6 is installed under the base frame 1, and the placement rack 63 is connected to the bottom of the base frame 1. An annular groove 621 is opened on the air nozzle 62. The air nozzle 62 is slidably connected to the placement rack 63 through the annular groove 621 structure thereon, and the two ends of the air pipe 61 are respectively connected to the air pump 6 and the air nozzle 62.

[0036] After turning on the air pump 6, remove the air nozzle 62 from the placement rack 63. The staff holds the air nozzle 62 to blow away the debris and dust on the surface of the upper mold 24, the lower mold 25 and the lower support plate 11 to ensure that the steel sheet will not be scratched when bending, thereby ensuring the bending quality of the steel sheet. The coolant and other debris on the surface of the cleaning roller 54 can also be blown away to ensure the cleaning effect. After use, the air nozzle 62 is pushed into the placement rack 63, and the air nozzle 62 slides into the placement rack 63 through the annular groove 621.

[0037] like Fig.11 As shown, it also includes an expansion plate 7, a hinged rod 71, a locking rod 72 and a locking plate 73. The hinged rod 71 is connected to the top side of the base frame 1, and is located on the left and right sides of the base frame 1 respectively with the cleaning component 5. The expansion plate 7 is hinged on the hinged rod 71, and the locking rod 72 is connected to the front and back sides of the top of the base frame 1. The locking plate 73 is slidably connected to the expansion plate 7, and the locking plate 73 is slidably connected to the locking rod 72 along a specific track to fix the expansion plate 7.

[0038] The bent steel sheet is placed on the expansion plate 7. After the expansion plate 7 is rotated 90 degrees, the locking plates 73 at both ends are pushed so that the locking plates 73 are sleeved on the locking rods 72. The locking plates 73 support the expansion plate 7 to maintain a horizontal state and are used to place the bent steel sheet. When the bending work is stopped, the locking plates 73 are pulled out to the front and rear sides, and the expansion plate 7 falls naturally.

[0039] The above embodiments are provided to persons familiar with the art to implement or use the present invention. Persons familiar with the art may make various modifications or changes to the above embodiments without departing from the inventive concept of the present invention. Therefore, the protection scope of the present invention is not limited to the above embodiments, but should be the maximum scope of the innovative features mentioned in the claims.

Claims

1. A bending device for processing steel sheets of printer drum forming controllers, comprising a base frame (1), a hydraulic frame (12) and a hydraulic press (13), wherein the hydraulic frame (12) is arranged above the rear of the base frame (1), and the hydraulic press (13) is mounted on the hydraulic frame (12), wherein: The invention also comprises a lower support plate (11), an upper support plate (14), a clamping plate (15), a replacement component (2), a positioning component (3) and a material ejection component (4); the lower support plate (11) is connected to the top of the base frame (1); the upper support plate (14) is connected to the bottom of the hydraulic press (13); a replacement component (2) is arranged on the lower support plate (11) and the upper support plate (14) for replacing the bending die; a positioning component (3) for aligning the position of the steel sheet is connected to the base frame (1); and a material ejection component (4) for discharging is arranged at the rear ends of the lower support plate (11) and the upper support plate (14).

2. A bending device for processing steel sheets of printer drum forming controllers according to claim 1, characterized in that: The replacement assembly (2) comprises a smooth sleeve (21), a threaded rod (22), a double-headed clamping rod (23), an upper mold (24) and a lower mold (25); the lower support plate (11) and the upper support plate (14) are connected to the opposite surfaces thereof with the clamping plates (15); the lower support plate (11) and the upper support plate (14) are provided with clamping grooves (16); the smooth sleeve (21) is installed on the front side of the bottom of the lower support plate (11) and the front side of the top of the upper support plate (14); the smooth sleeve (21) is hinged with the threaded rod (22); the double-headed clamping rod (23) is slidable The upper mold (24) and the lower mold (25) are connected to the slots (16) of the lower support plate (11) and the upper support plate (14) and are threadedly connected to the threaded rod (22). The front ends of the upper mold (24) and the lower mold (25) are provided with front positioning holes (26) for limiting the position with the double-headed clamping rod (23). The rear ends of the upper mold (24) and the lower mold (25) are provided with rear positioning holes (27) for limiting the position with the clamping plate (15). Thus, the upper mold (24) is connected to the bottom of the upper support plate (14) and the lower mold (25) is connected to the top of the lower support plate (11).

3. A bending device for processing steel sheets of printer drum forming controllers according to claim 2, characterized in that: The positioning assembly (3) comprises a positioning plate (31), a T-block (32), a rod (33), an elastic member I (34) and a bending plate (35). The positioning plate (31) is respectively connected to the left and right sides of the top of the rear end of the lower mold (25). A plurality of T-blocks (32) are connected to the left and right sides of the top of the bottom frame (1). The bottom of the rod (33) is slidably connected to the T-block (32). The opening directions of the rods (33) connected to the T-block (32) on the same side are the same. The tops of the rods (33) on the same side are commonly connected to the bending plate (35). The bending portion of the bending plate (35) is located at the front end. The bottom of the rod (33) is sleeved with an elastic member I (34). One end of the elastic member I (34) is connected to the T-block (32) and the other end is connected to the rod (33).

4. A bending device for processing steel sheets of printer drum forming controllers according to claim 3, characterized in that: The ejection assembly (4) comprises a connecting frame (41), an inclined H-plate (42), a rotating block (43), a torsion spring (44), a support plate (45), an ejection frame (46), an elastic member II (47) and an extrusion rod (48). The connecting frame (41) is connected to the rear end of the upper support plate (14). The bottom of the connecting frame (41) is connected to the inclined H-plate (42). The top of the inclined H-plate (42) is hinged with the rotating block (43). A torsion spring (44) is sleeved on the connecting shaft between the rotating block (43) and the inclined H-plate (42). One end of the torsion spring (44) is connected to the inclined H-plate (42). The other end The lower mold (25) is connected to the rotating block (43), the rear end of the lower mold (25) is provided with a feed opening (251), the support plate (45) is connected to the rear end of the lower support plate (11), a feed opening frame (46) is slidably connected to the support plate (45), the front end of the feed opening frame (46) slides and passes through the feed opening (251), the rear end of the feed opening frame (46) is connected to an extrusion rod (48), the rotating block (43) and the extrusion rod (48) are extruded and matched, an elastic member II (47) is connected inside the feed opening frame (46), one end of the elastic member II (47) is connected to the feed opening frame (46), and the other end is connected to the support plate (45).

5. A bending device for processing steel sheets of printer drum forming controllers according to claim 4, characterized in that: The cleaning assembly (5) further comprises a cleaning component (5), the cleaning component (5) comprising a mounting frame (51), a motor (52), a gear set (53) and a cleaning roller (54); the mounting frame (51) is connected to the top side of the base frame (1); the motor (52) is mounted on the rear end of the mounting frame (51); the front end of the mounting frame (51) is rotatably connected to two cleaning rollers (54); the rear ends of the two cleaning rollers (54) are connected via a gear set (53); the gear set (53) is located outside the rear end of the mounting frame (51); the gear set (53) comprises two gears meshing with each other; the output shaft of the motor (52) is connected to one of the gears.

6. A bending device for processing steel sheets of printer drum forming controllers according to claim 5, characterized in that: The invention also comprises an air pump (6), an air pipe (61), an air nozzle (62) and a placement frame (63), wherein the air pump (6) is installed below the base frame (1), the placement frame (63) is connected to the base frame (1), an annular groove (621) is formed on the air nozzle (62), and the air nozzle (62) is slidably connected to the placement frame (63) via the annular groove (621) structure thereon, and the two ends of the air pipe (61) are respectively connected to the air pump (6) and the air nozzle (62).

7. A bending device for processing steel sheets of printer drum forming controllers according to claim 6, characterized in that: The expansion plate (7) is also comprised of an expansion plate (7), a hinged rod (71), a locking rod (72) and a locking plate (73). The hinged rod (71) is connected to the top side of the base frame (1) and is located on the left and right sides of the base frame (1) together with the cleaning assembly (5). The expansion plate (7) is hingedly connected to the hinged rod (71). The locking rod (72) is connected to the front and rear sides of the top of the base frame (1). The locking plate (73) is slidably connected to the expansion plate (7). The locking plate (73) is slidably connected to the locking rod (72) along a specific track to achieve the fixation of the expansion plate (7).

8. A bending device for processing steel sheets of printer drum forming controllers according to claim 7, characterized in that: After the upper die (24) and the lower die (25) are overlapped, the width of the gap is equal to the thickness of the processed steel sheet.

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