Automatic assembly machine for magnetic roller of printer

Abstract

The present invention provides an automatic assembly machine for a printer magnetic roller, which relates to the technical field of printer assembly, and comprises a conveying box, wherein a feeding port is arranged on the top of the conveying box, and an open discharging port is opened at the bottom of the conveying box, a magnetic roller body is stacked inside the conveying box, and connecting shafts are installed at both ends of the magnetic roller body, a mounting frame is arranged on the outer side of the outlet end of the conveying box, and a clamping component is arranged at the bottom of the mounting frame, and the clamping component comprises a first clamping frame and a second clamping frame. Compared with the prior art, the magnetic roller is conveyed by the conveying box and the first clamping frame and the second clamping frame clamp the middle surface of both sides of the magnetic roller from the upper and lower ends, so that the magnetic roller can be conveniently taken out of the conveying box, and the first clamping frame and the second clamping frame are driven by a rotating plate to turn the direction, so that the lower sides of both ends of the magnetic roller are conveniently exposed and inserted into the printer card slot, and the first clamping frame still maintains the bearing capacity for the magnetic roller during this process, thereby realizing high efficiency and convenience in installing the magnetic roller.

Description

Technical Field

[0001] The invention relates to the technical field of printer assembly, in particular to an automatic assembly machine for a printer magnetic roller. Background Art

[0002] The magnetic roller is charged by friction with the powder discharging knife, and the machine charges the magnetic roller. The frictionally charged carbon powder is adsorbed on the surface of the magnetic roller. The magnetic roller is composed of a magnetic core, a bracket, a conductive wire and a magnetic sleeve; the magnetic sleeve is composed of an aluminum layer and a coating; the coating must have certain conductivity, wear resistance and roughness.

[0003] When installing the magnetic roller, manual installation is mostly adopted. During installation, the installation head of the magnetic roller needs to be pressed inward, and then the magnetic roller is manually installed on the printer. Since the magnetic roller itself has a certain weight, the installation is inconvenient and inefficient. Some existing technologies propose to clamp the magnetic roller and transport it to the magnetic roller installation position of the printer through mechanical processing, and place and install the magnetic roller by lifting and moving. In this process, the magnetic roller needs to be placed on the clamp manually, which still has the problem of time-consuming and labor-intensive. In conjunction with some magnetic roller storage devices for transporting the magnetic roller, it is difficult for conventional clamps to directly take the magnetic roller out of the storage device. Moreover, when installing the magnetic roller, both ends of the magnetic roller need to be installed in the card slot of the printer. The conventional clamping is likely to interfere with the insertion of both ends of the magnetic roller into the card slot, affecting the normal installation of the magnetic roller. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide an automatic assembly machine for a printer magnetic roller to solve the problems raised in the above-mentioned background technology. The present invention has a novel structure. The conveying box conveys the magnetic roller and the first clamping frame and the second clamping frame clamp the middle surfaces of both sides of the magnetic roller from the upper and lower ends, so that the magnetic roller can be easily taken out from the conveying box. The rotating plate drives the first clamping frame and the second clamping frame to reverse the direction, so that the lower sides of the two ends of the magnetic roller are exposed and inserted into the printer card slot. During this process, the first clamping frame still maintains the ability to bear the load on the magnetic roller, thereby achieving efficient and convenient installation of the magnetic roller.

[0005] In order to achieve the above-mentioned purpose, the present invention is realized through the following technical scheme: a printer magnetic roller automatic assembly machine, including a conveying box, a feeding port is arranged on the top of the conveying box, and an open discharge port is opened at the bottom of the conveying box, a magnetic roller body is stacked inside the conveying box, and connecting shafts are installed at both ends of the magnetic roller body, a mounting frame is arranged on the outer side of the outlet end of the conveying box, and a clamping assembly is arranged at the bottom of the mounting frame, the clamping assembly includes a first clamping frame and a second clamping frame, the first clamping frame is in extrusion contact with the top surface of the magnetic roller body, and the second clamping frame is in extrusion contact with the bottom surface of the connecting shaft, a driving assembly is arranged on both sides of the mounting frame, the driving assembly includes a side frame, a slide rail is arranged on the surface of the side frame, and a slide frame is fixed at the position corresponding to the slide rail on the outer wall of both sides of the mounting frame, the slide frame is slidably sleeved on the slide rail, a connecting rod is arranged on the same side of the first clamping frame and the second clamping frame, a rotating plate is arranged on the inner wall of both sides of the mounting frame, and the connecting rod is transmission-connected with the rotating plate, and the first clamping frame and the second clamping frame exchange directions through the rotating plate.

[0006] Furthermore, the outlet end of the conveying box is an inclined surface, and movable notches are opened on both sides of the conveying box. The connecting shafts on both sides of the magnetic roller body can slide along the movable notches. Connecting plates are fixed on both sides of the outlet end of the conveying box, and the other end of the connecting plate is fixed to the side frame.

[0007] Furthermore, movable wheels are installed at the bottom of both ends of the side frame, and supporting wheel rods are fixedly installed at equal distances at the bottom of the conveying box.

[0008] Furthermore, the driving assembly also includes a screw, which is rotatably mounted on the top inner wall of the side frame through a bearing, and a moving block is meshingly connected to the surface of the screw, a second motor is fixed at a position corresponding to the screw on the outside of the side frame, and an output end of the second motor is fixedly connected to the screw, and the slide rail is fixed on the outer surface of the moving block.

[0009] Furthermore, electric push rods are fixed on both sides of the top of the slide rail, and the extended ends of the electric push rods are fixedly connected to both sides of the slide frame.

[0010] Furthermore, the clamping assembly also includes a vertical frame, and vertical frames are provided at both ends of the connecting rod. Two groups of sliders are symmetrically slidably connected inside the vertical frame, and the sliders are fixedly connected to the connecting rods of the first clamping frame and the second clamping frame respectively, and the vertical frame is fixedly connected to the rotating plate.

[0011] Furthermore, a bidirectional screw rod is rotatably installed inside the vertical frame through a bearing, and a slider is engaged and sleeved on both ends of the bidirectional screw rod. A first motor is fixed on the top of the vertical frame, and an output end of the first motor is fixedly connected to the bidirectional screw rod.

[0012] Furthermore, a connecting block is fixed to one end of the first clamp frame and the second clamp frame facing the connecting rod, and the connecting block is slidably sleeved on the surface of the connecting rod. A locking bolt is engaged and inserted at the outer end of the connecting block, and the inner end of the locking bolt is in compression contact with the connecting rod.

[0013] Furthermore, a driving motor is installed on the inner wall of the mounting frame at a position corresponding to the mounting position of the rotating plate, and an output end of the driving motor on the inner wall of the mounting frame is fixedly connected to the center of the rotating plate.

[0014] Furthermore, the rotation center of the rotating plate and the connection axis center of the magnetic roller body are on the same straight line.

[0015] Beneficial effects of the invention: The printer magnetic roller automatic assembly machine of the invention comprises a conveying box; a feed port; a moving notch; a supporting wheel rod; a connecting plate; a mounting frame; a clamping assembly; a first clamping frame; a second clamping frame; a connecting rod; a vertical frame; a first motor; a bidirectional screw rod; a slider; a connecting block; a locking bolt; a rotating plate; a driving assembly; a side frame; a screw rod; a second motor; a moving block; a slide rail; a moving wheel; a slide frame; an electric push rod; a magnetic roller body; a connecting shaft;

[0016] The present invention makes the center of the rotating plate and the center of the connecting shaft to be in the same straight line, so that when the rotating plate is driven by the built-in driving motor of the mounting frame to rotate, the first clamping frame and the second clamping frame are driven by the connecting rod to rotate along the surface of the magnetic roller body and the surface of the connecting shaft respectively, and because the first clamping frame and the second clamping frame are initially in opposite positions, the directions of the two are interchanged after rotation, the first clamping frame moves from the upper end to the bottom to support the magnetic roller body, and the second clamping frame rotates from the bottom of the connecting shaft to the top of the connecting shaft, so that the connecting shaft can be inserted into the corresponding card slot of the printer conveniently.

[0017] The present invention achieves that the first clamp frame and the second clamp frame are slidably installed on the connecting rod through a connecting block, and the two groups of first clamp frames and the two groups of second clamp frames are installed on their respective connecting rods, so that the integrity can be maintained. The position of the clamp frame can be changed by sliding the connecting block along the connecting rod, and the position is locked by a locking bolt, so that the position of the first clamp frame and the second clamp frame can be easily adjusted to correspond to the position of different models of magnetic roller bodies and connecting shafts.

[0018] Before the magnetic roller body is clamped or the magnetic roller body is placed in the printer installation slot, the first motor drives the bidirectional lead screw to rotate, and the two sliders engage with the bidirectional lead screw and move synchronously in opposite directions along the vertical frame, so that the first clamping frame and the second clamping frame can be moved away from or close to the magnetic roller body, thereby facilitating the clamping and lowering of the magnetic roller body.

[0019] The present invention drives the screw to rotate through a second motor, and the moving block engages with the screw to move horizontally along the side frame, driving the mounting frame and the clamping assembly to move to clamp the magnetic roller body in the conveying box and convey it to the printer installation position. The electric push rod drives the slide frame to slide downward along the slide rail, and the height of the mounting frame and the clamping assembly can be adjusted to facilitate the placement of the magnetic roller body into the printer installation position.

[0020] The conveying box of the present invention is kept integral with the side frame through a connecting plate, and the pushing device can be conveniently moved through the moving wheels at the bottom of the side frame and the supporting wheel rods at the bottom of the conveying box. Each time the magnetic roller is installed, it is pushed to the periphery of the printer body, and after the installation of the magnetic roller is completed, it is pushed away, so that it is convenient to use at any time.

[0021] Compared with the prior art, the present invention facilitates the removal of the magnetic roller from the conveying box by conveying the magnetic roller and clamping the middle surfaces of both sides of the magnetic roller from the upper and lower ends by the first clamping frame and the second clamping frame. The first clamping frame and the second clamping frame are driven by the rotating plate to reverse the direction, so that the lower sides of both ends of the magnetic roller are exposed and inserted into the printer card slot. During this process, the first clamping frame still maintains the ability to bear the magnetic roller, thereby achieving efficient and convenient installation of the magnetic roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of an automatic magnetic roller assembly machine for a printer according to the present invention;

[0023] Figure 2 It is a schematic diagram of the side structure of a driving assembly and a conveying box of an automatic magnetic roller assembly machine for a printer according to the present invention;

[0024] Figure 3 It is a schematic diagram of the connection between a clamping assembly and a driving assembly of an automatic magnetic roller assembly machine for a printer according to the present invention;

[0025] Figure 4 It is a schematic diagram of the structure of a driving component of an automatic magnetic roller assembly machine for a printer according to the present invention;

[0026] Figure 5 It is a schematic diagram of the side structure of a clamping assembly of an automatic magnetic roller assembly machine for a printer according to the present invention;

[0027] Figure 6 It is a schematic diagram of the installation positions of the first clamping frame and the second clamping frame of the automatic assembly machine for the magnetic roller of a printer according to the present invention;

[0028] Figure 7 The present invention is a schematic diagram of the connection between a clamping assembly and a mounting frame of an automatic magnetic roller assembly machine for a printer.

[0029] In the figure: 1. conveying box; 11. feeding port; 12. moving notch; 13. supporting wheel rod; 14. connecting plate; 2. mounting frame; 3. clamping assembly; 31. first clamping frame; 32. second clamping frame; 33. connecting rod; 34. vertical frame; 35. first motor; 36. two-way screw rod; 37. slider; 38. connecting block; 39. locking bolt; 310. rotating plate; 4. driving assembly; 41. side frame; 42. screw rod; 43. second motor; 44. moving block; 45. slide rail; 46. moving wheel; 47. slide frame; 48. electric push rod; 5. magnetic roller body; 51. connecting shaft. DETAILED DESCRIPTION

[0030] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0031] See also Figures 1 to 7 The present invention provides a technical solution: a printer magnetic roller automatic assembly machine, comprising a conveying box 1, a feeding port 11 is arranged on the top of the conveying box 1, and an open discharge port is opened at the bottom of the conveying box 1, a magnetic roller body 5 is stacked inside the conveying box 1, and connecting shafts 51 are installed at both ends of the magnetic roller body 5, a mounting frame 2 is arranged on the outer side of the outlet end of the conveying box 1, and a clamping assembly 3 is arranged at the bottom of the mounting frame 2, the clamping assembly 3 includes a first clamping frame 31 and a second clamping frame 32, the first clamping frame 31 is in pressure contact with the top surface of the magnetic roller body 5, and the second clamping frame 32 is in pressure contact with the bottom surface of the connecting shaft 51, driving components 4 are arranged on both sides of the mounting frame 2, the driving components 4 include side frames 41, and slide rails 45 are arranged on the surface of the side frames 41, and slide frames 47 are fixed at positions corresponding to the slide rails 45 on the outer walls of both sides of the mounting frame 2, and the slide frames 47 are slidably sleeved on the slide rails 45, The first clamping frame 31 and the second clamping frame 32 are provided with a connecting rod 33 on the same side, and a rotating plate 310 is provided on the inner walls of the two sides of the mounting frame 2, and the connecting rod 33 is connected to the rotating plate 310 in a transmission manner. The first clamping frame 31 and the second clamping frame 32 exchange directions through the rotating plate 310. When the device is used, a plurality of magnetic roller bodies 5 are stored in the conveying box 1 in advance, and are sent out from the outlet end through the space inside the conveying box 1 and blocked by the baffle at the outlet end. The connecting shafts 51 at both ends of the magnetic roller body 5 are inserted along the moving notch 12 of the feed port 11, and a notch is provided at the outlet end for the connecting shaft 51 to be sent out. The connecting shaft 51 and the roller body are limited by the moving notch 12, and at the same time, it is convenient for the clamping assembly 3 to clamp and take out the magnetic roller body 5 and the connecting shaft 51, and move them to the position of the printer body through the driving assembly 4, and then exchange the positions of the first clamping frame 31 and the second clamping frame 32, and vertically place the magnetic roller body 5 into the installation position of the printer.

[0032] In this embodiment, the outlet end of the conveying box 1 is an inclined surface, and movable notches 12 are opened on both sides of the conveying box 1. The connecting shafts 51 on both sides of the magnetic roller body 5 can slide along the movable notches 12. Connecting plates 14 are fixed on both sides of the outlet end of the conveying box 1, and the other end of the connecting plate 14 is fixed to the side frame 41. Moving wheels 46 are installed at the bottom of both ends of the side frame 41. Support wheel rods 13 are fixedly installed at equidistant intervals on the bottom of the conveying box 1. The conveying box 1 is kept integral with the side frame 41 through the connecting plate. The moving wheels 46 at the bottom of the side frame 41 and the support wheel rods 13 at the bottom of the conveying box 1 can facilitate the movement of the pushing device. Each time the magnetic roller is installed, it is pushed to the periphery of the printer body (the side frame 41 is at the periphery of the printer body and will not collide with the printer). After the installation of the magnetic roller is completed, it is pushed away for easy use at any time.

[0033] In this embodiment, the driving assembly 4 also includes a screw 42, and the screw 42 is rotatably installed on the inner wall of the top of the side frame 41 through a bearing, and a moving block 44 is meshed and connected on the surface of the screw 42, a second motor 43 is fixed on the position of the outer side of the side frame 41 corresponding to the screw 42, and the output end of the second motor 43 is fixedly connected to the screw 42, and the slide rail 45 is fixed on the outer surface of the moving block 44, and electric push rods 48 are fixed on both sides of the top of the slide rail 45, and the extended ends of the electric push rods 48 are fixedly connected to both sides of the slide frame 47, and the second motor 43 is turned on to drive the screw 42 to rotate, and the moving block 44 meshes with the screw 42 and moves horizontally along the side frame 41, driving the mounting frame 2 and the clamping assembly 3 to move to clamp the magnetic roller body 5 in the conveying box 1 and convey it to the printer installation position, and the electric push rod 48 drives the slide frame 47 to slide downward along the slide rail 45, so as to adjust the height of the mounting frame 2 and the clamping assembly 3, so as to facilitate the placement of the magnetic roller body 5 into the printer installation position.

[0034] In this embodiment, the clamping assembly 3 also includes a vertical frame 34, and vertical frames 34 are provided at both ends of the connecting rod 33. Two groups of sliders 37 are symmetrically slidably connected inside the vertical frame 34, and the sliders 37 are fixedly connected to the connecting rods 33 of the first clamping frame 31 and the second clamping frame 32 respectively. The vertical frame 34 is fixedly connected to the rotating plate 310. A bidirectional screw rod 36 is rotatably installed inside the vertical frame 34 through a bearing, and the sliders 37 are engaged and sleeved on both ends of the bidirectional screw rod 36. A first motor 35 is fixed on the top of the vertical frame 34, and the output end of the first motor 35 is fixedly connected to the bidirectional screw rod 36. Before clamping the magnetic roller body 5 or when the magnetic roller body 5 is placed in the printer installation slot, the first motor 35 drives the bidirectional screw rod 36 to rotate, and the two sliders 37 are engaged with the bidirectional screw rod 36 and move synchronously in opposite directions along the vertical frame 34, so that the first clamping frame 31 and the second clamping frame 32 can be moved away from or close to the magnetic roller body 5, thereby facilitating the clamping and lowering of the magnetic roller body 5.

[0035] In this embodiment, a connecting block 38 is fixed to one end of the first clamping frame 31 and the second clamping frame 32 facing the connecting rod 33, and the connecting block 38 is slidably sleeved on the surface of the connecting rod 33, and a locking bolt 39 is meshed and inserted at the outer end of the connecting block 38, and the inner end of the locking bolt 39 is pressed and contacted with the connecting rod 33, and a driving motor is installed at the position corresponding to the installation of the rotating plate 310 on the inner wall of the mounting frame 2, and the output end of the driving motor on the inner wall of the mounting frame 2 is fixedly connected to the center of the rotating plate 310, and the rotation center of the rotating plate 310 is in the same straight line with the center of the connecting shaft 51 of the magnetic roller body 5, and the center of the rotating plate 310 is in the same straight line with the center of the connecting shaft 51, so that when the rotating plate 310 is driven by the built-in driving motor of the mounting frame 2 to rotate, the first clamping frame 31 and the second clamping frame 32 will be driven to rotate along the surface of the magnetic roller body 5 and the surface of the connecting shaft 51 respectively through the connecting rod 33, and because the initial positions of the first clamping frame 31 and the second clamping frame 32 are opposite, the directions of the two after rotation The first clamping frame 31 and the second clamping frame 32 are interchanged, and the first clamping frame 31 moves from the upper end to the bottom to support the magnetic roller body 5, and the second clamping frame 32 rotates from the bottom of the connecting shaft 51 to the top of the connecting shaft 51, so that the connecting shaft 51 can be inserted into the corresponding card slot of the printer (in the initial stage, the directions of the first clamping frame 31 and the second clamping frame 32 are convenient for the second clamping frame 32 to take out the magnetic roller body 5 from the conveying box 1 for bearing force, and cooperate with the first clamping frame 31 to limit the clamping of the upper end of the magnetic roller body 5 to achieve stability during transportation of the magnetic roller body 5). The first clamping frame 31 and the second clamping frame 32 are slidably installed on the connecting rod 33 through the connecting block 38, and the two groups of first clamping frames 31 and the two groups of second clamping frames 32 are installed on their respective connecting rods 33 to maintain integrity. The connecting block 38 can be slid along the connecting rod 33 to change the position of the clamping frame, and then the position is locked by the locking bolt 39, so as to facilitate the adjustment of the position of the first clamping frame 31 and the second clamping frame 32 to correspond to the positions of different models of magnetic roller bodies 5 and connecting shafts 51.

[0036] When the device is used, a plurality of magnetic roller bodies 5 are stored in the conveying box 1 in advance, and are sent out from the outlet end through the space inside the conveying box 1 and blocked by the baffle at the outlet end. The connecting shafts 51 at both ends of the magnetic roller body 5 are inserted along the moving notch 12 of the feed inlet 11. There is a notch at the outlet end for the connecting shaft 51 to be sent out. The connecting shaft 51 and the roller body are limited by the moving notch 12, and at the same time, it is convenient for the clamping assembly 3 to clamp and take out the magnetic roller body 5 and the connecting shaft 51. Before clamping the magnetic roller body 5 or when the magnetic roller body 5 is placed in the printer installation slot, the first motor 35 drives the bidirectional lead screw 36 to rotate, and the two sliders 37 and the bidirectional lead screw 36 rotate. The screw rod 36 is meshed with the vertical frame 34 and moves synchronously in the opposite direction, so that the first clamping frame 31 and the second clamping frame 32 can be moved away from or close to the magnetic roller body 5, so as to facilitate the clamping and putting down of the magnetic roller body 5. The driving component 4 is used to move it to the position of the printer body, and then the positions of the first clamping frame 31 and the second clamping frame 32 are exchanged. The center of the rotating plate 310 and the center of the connecting shaft 51 are on the same straight line. Therefore, when the rotating plate 310 is driven by the built-in driving motor of the mounting frame 2 to rotate, the first clamping frame 31 and the second clamping frame 32 are driven by the connecting rod 33 to rotate along the surface of the magnetic roller body 5 and the surface of the connecting shaft 51 respectively. And because the initial positions of the first clamping frame 31 and the second clamping frame 32 are opposite, the directions of the two are interchanged after they are rotated, the first clamping frame 31 moves from the upper end to the bottom to support the magnetic roller body 5, and the second clamping frame 32 rotates from the bottom of the connecting shaft 51 to the top of the connecting shaft 51, so that the connecting shaft 51 can be inserted into the corresponding card slot of the printer. The first clamping frame 31 and the second clamping frame 32 are slidably installed on the connecting rod 33 through the connecting block 38, and the two groups of first clamping frames 31 and the two groups of second clamping frames 32 are installed on their respective connecting rods 33, which can maintain integrity. The position of the clamping frame can be changed by sliding the connecting block 38 along the connecting rod 33, and then by The locking bolt 39 is locked in position to facilitate adjustment of the positions of the first clamping frame 31 and the second clamping frame 32 to correspond to the positions of different models of magnetic roller bodies 5 and connecting shafts 51. The second motor 43 is turned on to drive the screw 42 to rotate, and the moving block 44 engages with the screw 42 and moves horizontally along the side frame 41, driving the mounting frame 2 and the clamping assembly 3 to move to clamp the magnetic roller body 5 in the conveying box 1 and convey it to the printer installation position. The electric push rod 48 drives the slide frame 47 to slide downward along the slide rail 45, and the height of the mounting frame 2 and the clamping assembly 3 can be adjusted to vertically place the magnetic roller body 5 into the installation position of the printer.

[0037] The basic principles and main features of the present invention and the advantages of the present invention are shown and described above. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention.

[0038] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A printer magnetic roller automatic assembly machine, comprising a conveying box (1), characterized in that: The top of the conveying box (1) is provided with a feed inlet (11), and the bottom of the conveying box (1) is provided with an open discharge outlet. A magnetic roller body (5) is stacked inside the conveying box (1), and connecting shafts (51) are installed at both ends of the magnetic roller body (5). A mounting frame (2) is provided on the outside of the outlet end of the conveying box (1), and a clamping assembly (3) is provided at the bottom of the mounting frame (2). The clamping assembly (3) comprises a first clamping frame (31) and a second clamping frame (32). The first clamping frame (31) is in pressure contact with the top surface of the magnetic roller body (5), and the second clamping frame (32) is in pressure contact with the bottom surface of the connecting shaft (51). Drive assemblies (4) are provided on both sides of the mounting frame (2), and the drive assembly (4) comprises a side clamping frame (31). The mounting frame (41) comprises a side frame (41), a sliding rail (45) is provided on the surface of the side frame (41), and sliding frames (47) are fixed at positions corresponding to the sliding rails (45) on the outer walls of both sides of the mounting frame (2), and the sliding frames (47) are slidably sleeved on the sliding rails (45). The first clamping frame (31) and the second clamping frame (32) are provided with connecting rods (33) on the same side, and rotating plates (310) are provided on the inner walls of both sides of the mounting frame (2), and the connecting rods (33) are transmission-connected with the rotating plates (310). The first clamping frame (31) and the second clamping frame (32) are switched in direction via the rotating plates (310). The clamping assembly (3) further comprises a vertical frame (34), and vertical frames (34) are provided at both ends of the connecting rod (33). The vertical frames (34) are symmetrically and slidably connected inside with two groups of connecting rods (34). The slider (37) is fixedly connected to the connecting rods (33) of the first clamping frame (31) and the second clamping frame (32), respectively. The vertical frame (34) is fixedly connected to the rotating plate (310). A bidirectional screw rod (36) is rotatably mounted inside the vertical frame (34) through a bearing, and the slider (37) is meshed and sleeved on both ends of the bidirectional screw rod (36). A first motor (35) is fixedly connected to the top of the vertical frame (34), and the output end of the first motor (35) is fixedly connected to the bidirectional screw rod (36). A driving motor is installed on the inner wall of the mounting frame (2) at a position corresponding to the mounting position of the rotating plate (310), and the output end of the driving motor on the inner wall of the mounting frame (2) is fixedly connected to the center of the rotating plate (310). The outlet end of the conveying box (1) is The conveying box (1) has an inclined surface, and movable notches (12) are provided on both sides of the conveying box (1). The connecting shafts (51) on both sides of the magnetic roller body (5) can slide along the movable notches (12). Connecting plates (14) are fixed on both sides of the outlet end of the conveying box (1), and the other end of the connecting plate (14) is fixed to the side frame (41). The center of the circle of the rotating plate (310) and the center of the circle of the connecting shaft (51) are on the same straight line. When the rotating plate (310) is driven by a built-in driving motor of the mounting frame (2), it drives the first clamping frame (31) and the second clamping frame (32) to rotate along the surface of the magnetic roller body (5) and the surface of the connecting shaft (51) respectively. The first clamping frame (31) and the second clamping frame (32) are initially in opposite positions, and the directions of the two are exchanged after they rotate.The first clamping frame (31) moves from the upper end to the bottom to support the magnetic roller body (5), and the second clamping frame (32) rotates from the bottom of the connecting shaft (51) to the top of the connecting shaft (51).

2. The automatic printer magnetic roller assembly machine according to claim 1, characterized in that: Moving wheels (46) are installed at the bottom of both ends of the side frame (41), and supporting wheel rods (13) are fixedly installed at equal distances at the bottom of the conveying box (1).

3. The automatic printer magnetic roller assembly machine according to claim 1, characterized in that: The driving assembly (4) further comprises a screw rod (42), the screw rod (42) being rotatably mounted on the inner wall of the top of the side frame (41) via a bearing, and a moving block (44) being meshingly connected on the surface of the screw rod (42), a second motor (43) being fixed at a position corresponding to the screw rod (42) on the outside of the side frame (41), and an output end of the second motor (43) being fixedly connected to the screw rod (42), and the slide rail (45) being fixed on the outer surface of the moving block (44).

4. The automatic printer magnetic roller assembly machine according to claim 3, characterized in that: Electric push rods (48) are fixed on both sides of the top of the slide rail (45), and the extended ends of the electric push rods (48) are fixedly connected to both sides of the slide frame (47).

5. The automatic printer magnetic roller assembly machine according to claim 1, characterized in that: A connecting block (38) is fixed to one end of the first clamping frame (31) and the second clamping frame (32) facing the connecting rod (33), and the connecting block (38) is slidably sleeved on the surface of the connecting rod (33). A locking bolt (39) is meshedly inserted at the outer end of the connecting block (38), and the inner end of the locking bolt (39) is in compression contact with the connecting rod (33).

6. The automatic printer magnetic roller assembly machine according to claim 1, characterized in that: The rotation center of the rotating plate (310) and the center of the connecting shaft (51) of the magnetic roller body (5) are on the same straight line.

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