Character jet printing machine for circuit board

Abstract

The utility model discloses a circuit board character jet printing machine, which comprises a rack, a feeding mechanism and a positioning mechanism, and is characterized in that the rack is provided with a laser jet printing assembly; the feeding mechanism comprises a conveying table and a moving assembly. The moving assembly is used for driving the conveying table to move in the direction close to or away from the laser jet printing assembly. The positioning mechanism comprises a first positioning assembly and a second positioning assembly, the first positioning assembly comprises a first driving piece and a pressing plate, the first driving piece is used for driving the pressing plate to do lifting motion, the second positioning assembly comprises a plurality of positioning rods, and a positioning plate is arranged at the upper ends of the positioning rods; the multiple positioning rods are arranged to be the first positioning rod, the second positioning rod, the third positioning rod and the fourth positioning rod, the first positioning rod, the second positioning rod, the third positioning rod and the fourth positioning rod can ascend and descend, the second positioning rod can move in the direction close to the first positioning rod, and the fourth positioning rod can move in the direction close to the third positioning rod. The positioning precision of the circuit board can be improved, and the jet printing quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board manufacturing, in particular to a circuit board character inkjet printer. Background Art

[0002] In the manufacturing process of a circuit board, it is usually necessary to print characters on the board surface of the circuit board to identify each component and path on the circuit board. The existing circuit board character inkjet printer needs to position the circuit board before inkjet printing. However, when positioning the circuit board, it is easy to bend and arch, resulting in the deviation of the circuit board positioning and affecting the inkjet printing quality of the circuit board. Content of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. For this reason, the utility model provides a circuit board character inkjet printer, which can improve the positioning accuracy of the circuit board and enhance the inkjet printing quality.

[0004] The circuit board character inkjet printer according to the first aspect embodiment of the utility model includes a frame, a loading mechanism and a positioning mechanism. The frame is provided with a laser inkjet printing component for printing the circuit board. The loading mechanism includes a conveying table and a moving component. The conveying table is slidably connected to the frame, and the moving component is used to drive the conveying table to move in a direction close to or away from the laser inkjet printing component. The positioning mechanism includes a first positioning component and a second positioning component. The first positioning component includes a first driving member and a pressing plate. The first driving member is arranged above the conveying table and is used to drive the pressing plate to move up and down so that the pressing plate can press the circuit board against the conveying table. The second positioning component includes a plurality of positioning rods. The positioning rods are arranged in the conveying table, and a positioning plate is arranged at the upper end of the positioning rods. The shape of the conveying table is rectangular. The plurality of positioning rods are arranged as a first positioning rod, a second positioning rod, a third positioning rod and a fourth positioning rod, and are respectively arranged around the conveying table. The first positioning rod, the second positioning rod, the third positioning rod and the fourth positioning rod can all move up and down so that the positioning plate can press the circuit board against the conveying table, and the second positioning rod can move in a direction close to the first positioning rod, and the fourth positioning rod can move in a direction close to the third positioning rod.

[0005] According to the embodiment of the utility model, the circuit board text printer has at least the following beneficial effects: the circuit board is arranged on the conveying platform, the first positioning rod, the second positioning rod, the third positioning rod and the fourth positioning rod are all inserted into the conveying platform, the first driving member is arranged above the conveying platform, the pressure plate is connected to the movable end of the first driving member, and the pressure plate is driven downward by the first driving member so that the pressure plate can press the circuit board on the conveying platform, and then the second positioning rod moves in the direction close to the first positioning rod, and the fourth positioning rod moves in the direction close to the third positioning rod, so that the first positioning rod, the second positioning rod, the third positioning rod and the fourth positioning rod are all in contact with the circuit board, and then the first positioning rod, the second positioning rod, the third positioning rod and the fourth positioning rod descend, so that the positioning plate is in contact with the circuit board, and the first driving member drives the pressure plate to reset, so that the circuit board can be fixed on the conveying platform, avoiding the circuit board from bending and arching, and improving the positioning accuracy of the circuit board, and then the conveying platform is driven by the moving component to move in the direction close to or away from the laser printing component, so that the laser printing component can print the circuit board, and the printing quality of the circuit board is improved.

[0006] According to some embodiments of the utility model, the first positioning assembly further comprises a plurality of adjustment blocks, the adjustment blocks are slidably connected to the pressure plate, and the plurality of adjustment blocks are arranged at intervals along the circumference of the pressure plate.

[0007] According to some embodiments of the utility model, the pressure plate is provided with a plurality of slide grooves, the plurality of slide grooves are arranged along the circumference of the pressure plate, the adjustment block is penetrated with a first bolt, the first bolt is located in the slide groove, and the first bolt is threadedly connected with a nut, and the nut can abut against the side of the pressure plate away from the adjustment block.

[0008] According to some embodiments of the utility model, a side of the adjustment block facing away from the pressure plate is detachably connected with an anti-slip pad.

[0009] According to some embodiments of the utility model, the anti-slip pad is provided with a second bolt, and the second bolt is threadedly connected to the adjustment block.

[0010] According to some embodiments of the utility model, the second positioning assembly further includes a connecting plate, a second driving member, a third driving member and a fourth driving member, the connecting plate is connected to the bottom of the conveying platform, the first positioning rod, the second positioning rod, the third positioning rod and the fourth positioning rod are all arranged on the connecting plate, the second driving member is used to drive the connecting plate to move up and down, the third driving member and the fourth driving member are both arranged on the connecting plate, the third driving member is used to drive the second positioning rod to move in a direction close to the first positioning rod, and the fourth driving member is used to drive the fourth positioning rod to move in a direction close to the third positioning rod.

[0011] According to some embodiments of the present utility model, a plurality of guiding grooves are formed in the conveying table, both the second positioning rod and the fourth positioning rod can slide in the guiding grooves, and the diameters of the second positioning rod and the fourth positioning rod are equal to the width of the guiding grooves.

[0012] According to some embodiments of the present utility model, the moving assembly includes a fixed seat, a guiding rod, a lead screw, a slider and a fifth driving member. The fixed seat is fixedly connected to the machine frame, the guiding rod is fixedly connected to the fixed seat, the lead screw is rotatably connected to the fixed seat, the slider is slidably connected to the guiding rod, and the slider is in threaded connection with the lead screw. The fifth driving member is used to drive the lead screw to rotate, and the conveying table is fixedly connected to the slider.

[0013] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The following further describes the present utility model in conjunction with the drawings and embodiments, where:

[0015] Figure 1 is a top view of the circuit board character inkjet printer according to the embodiment of the present utility model;

[0016] Figure 2 is a left view of the circuit board character inkjet printer according to the embodiment of the present utility model;

[0017] Figure 3 is a schematic diagram of the first positioning assembly of the circuit board character inkjet printer according to the embodiment of the present utility model;

[0018] Figure 4 is a schematic diagram of the connecting plate of the circuit board character inkjet printer according to the embodiment of the present utility model.

[0019] Reference numerals:

[0020] Machine frame 100, laser inkjet assembly 110;

[0021] Loading mechanism 200, conveying table 210, guiding groove 211, moving assembly 220, fixed seat 221, guiding rod 222, lead screw 223, slider 224, fifth driving member 225;

[0022] Positioning mechanism 300, first positioning component 310, first driving member 311, pressing plate 312, adjusting block 313, sliding groove 314, first bolt 315, nut 316, anti-slip pad 317, second bolt 318, second positioning component 320, first positioning rod 321, second positioning rod 322, third positioning rod 323, fourth positioning rod 324, positioning plate 325, connecting plate 326, second driving member 327, third driving member 328, fourth driving member 329. Detailed implementation mode

[0023] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0024] In the description of the present invention, it should be understood that with regard to the orientation description, such as the upper, lower, front, rear, left, right, etc., the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0025] In the description of the present invention, the meaning of several is one or more, the meaning of multiple is more than two, greater than, less than, exceeding, etc. are understood as not including the present number, and above, below, within, etc. are understood as including the present number. If there is a description of the first and the second, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0026] In the description of the present invention, unless otherwise clearly defined, words such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meaning of the above words in the present invention in combination with the specific content of the technical solution.

[0027] It can be understood that with reference to Figures 1 to 4, the circuit board letter printer of the present utility model includes a frame 100, a feeding mechanism 200 and a positioning mechanism 300. The frame 100 is provided with a laser printing component 110 for printing on the circuit board. The feeding mechanism 200 includes a conveying table 210 and a moving component 220. The conveying table 210 is slidably connected to the frame 100, and the moving component 220 is used to drive the conveying table 210 to move in a direction close to or away from the laser printing component 110. The positioning mechanism 300 includes a first positioning component 310 and a second positioning component 320. The first positioning component 310 includes a first driving member 311 and a pressing plate 312. The first driving member 311 is arranged above the conveying table 210 and is used to drive the pressing plate 312 to move up and down so that the pressing plate 312 can press the circuit board against the conveying table 210. The second positioning component 320 includes a plurality of positioning rods. The positioning rods are arranged in the conveying table 210, and a positioning plate 325 is provided at the upper end of the positioning rods. The shape of the conveying table 210 is rectangular. The plurality of positioning rods are set as a first positioning rod 321, a second positioning rod 322, a third positioning rod 323 and a fourth positioning rod 324, and are respectively arranged around the conveying table 210. The first positioning rod 321, the second positioning rod 322, the third positioning rod 323 and the fourth positioning rod 324 can all move up and down so that the positioning plate 325 can press the circuit board against the conveying table 210, and the second positioning rod 322 can move in a direction close to the first positioning rod 321, and the fourth positioning rod 324 can move in a direction close to the third positioning rod 323.

[0028] The circuit board is arranged on the conveying table 210. The first positioning rod 321, the second positioning rod 322, the third positioning rod 323 and the fourth positioning rod 324 are all arranged in the conveying table 210. The first driving member 311 is arranged above the conveying table 210, and the pressing plate 312 is connected to the movable end of the first driving member 311. By driving the pressing plate 312 to move downward through the first driving member 311, the pressing plate 312 can press the circuit board against the conveying table 210. Then, the second positioning rod 322 moves in a direction close to the first positioning rod 321, and the fourth positioning rod 324 moves in a direction close to the third positioning rod 323, so that the first positioning rod 321, the second positioning rod 322, the third positioning rod 323 and the fourth positioning rod 324 are all in contact with the circuit board. Then, the first positioning rod 321, the second positioning rod 322, the third positioning rod 323 and the fourth positioning rod 324 move downward so that the positioning plate 325 is in contact with the circuit board, and the first driving member 311 drives the pressing plate 312 to reset, so that the pressing plate 312 is separated from the circuit board, thereby being able to fix the circuit board on the conveying table 210, avoiding the circuit board from bending and arching, improving the positioning accuracy of the circuit board, and then driving the conveying table 210 to move in a direction close to or away from the laser printing component 110 through the moving component 220, so that the laser printing component 110 can print on the circuit board and improve the printing quality of the circuit board.

[0029] It should be noted that the structures of the first positioning rod 321, the second positioning rod 322, the third positioning rod 323 and the fourth positioning rod 324 are the same as those of the positioning rod. For the convenience of distinction, the positioning rods on the conveying table 210 are set as the first positioning rod 321, the second positioning rod 322, the third positioning rod 323 and the fourth positioning rod 324 according to their positions. Among them, the first positioning rod 321 and the second positioning rod 322 are arranged on the opposite sides of the conveying table 210 along the first direction, the third driving member 328 and the fourth driving member 329 are arranged on the opposite sides of the conveying table 210 along the second direction, and the first direction and the second direction are perpendicular to each other. The numbers of the first positioning rod 321, the second positioning rod 322, the third positioning rod 323 and the fourth positioning rod 324 are all set to be multiple. By setting the circuit board to abut against the first positioning rod 321 and the third positioning rod 323, then the first driving member 311 drives the pressing plate 312 to press the circuit board tightly on the conveying table 210. Then, the second positioning rod 322 moves towards the direction close to the first positioning rod 321 so that the circuit board can be positioned in the second direction, and the fourth positioning rod 324 moves towards the direction close to the third positioning rod 323 so that the circuit board can be positioned in the first direction. Finally, the first positioning rod 321, the second positioning rod 322, the third positioning rod 323 and the fourth positioning rod 324 move downward so that the positioning plate 325 can press the circuit board tightly on the conveying table 210, thereby enabling the circuit board to be positioned on the conveying table 210.

[0030] In addition, by setting the pressing plate 312 to press the circuit board tightly on the conveying table 210, it is possible to prevent the first positioning rod 321, the second positioning rod 322, the third positioning rod 323 and the fourth positioning rod 324 from bending the circuit board, keeping the circuit board horizontal and improving the positioning accuracy of the circuit board.

[0031] It can be understood that the laser printing assembly 110 is a prior art and can spray print words on the circuit board, which will not be elaborated here.

[0032] It can be understood that with reference to Figure 2 and Figure 3 , the first positioning assembly 310 further includes a plurality of adjusting blocks 313. The adjusting blocks 313 are slidably connected to the pressing plate 312, and the plurality of adjusting blocks 313 are arranged at intervals along the circumferential direction of the pressing plate 312. The adjusting blocks 313 can slide on the pressing plate 312. By arranging the plurality of adjusting blocks 313 at intervals along the circumferential direction of the pressing plate 312, the projection position of the adjusting blocks 313 on the conveying table 210 can be adjusted, so as to adapt to circuit boards of different sizes and improve the applicability of the circuit board letter printer.

[0033] Specifically, with reference to Figure 2 and Figure 3The pressing plate 312 is provided with a plurality of slide grooves 314, which are arranged along the circumference of the pressing plate 312. The adjusting block 313 is penetrated by a first bolt 315, which is located in the slide groove 314, and the first bolt 315 is threadedly connected with a nut 316, which can abut against the side of the pressing plate 312 away from the adjusting block 313. The plurality of slide grooves 314 are arranged at intervals along the circumference of the pressing plate 312, the first bolt 315 penetrates the adjusting block 313, and the nut 316 is threadedly connected with the first bolt 315. By setting the first bolt 315 in the slide groove 314, the first bolt 315 can slide in the slide groove 314, so that the position of the adjusting block 313 on the pressing plate 312 can be adjusted, so that the adjusting block 313 can extend or retract into the pressing plate 312, so as to adapt to the size of the circuit board and improve the applicability.

[0034] It should be noted that the first bolt 315 and the nut 316 are loosened to allow the first bolt 315 to slide in the slide groove 314 to adjust the position of the adjustment block 313, and then the nut 316 is tightened on the first bolt 315 to fix the adjustment block 313 on the pressure plate 312, thereby improving the convenience of adjustment.

[0035] Specifically, refer to Figure 2 and Figure 3 , the side of the adjustment block 313 away from the pressing plate 312 is detachably connected with an anti-skid pad 317. The anti-skid pad 317 is detachably connected to the side of the adjustment block 313 away from the pressing plate 312, and the anti-skid pad 317 can abut against the circuit board. By providing the anti-skid pad 317, the position of the circuit board can be prevented from being offset, so that the circuit board can be stabilized on the conveying table 210, the position of the circuit board is stabilized, and the position accuracy of the circuit board is improved.

[0036] In addition, the anti-skid pad 317 is detachably connected to one side of the pressing plate 312 to facilitate replacement of the anti-skid pad 317, thereby improving the convenience of maintenance.

[0037] It should be noted that the anti-slip pad 31 can be made of silicone or rubber, which will not be described in detail here.

[0038] Specifically, a plurality of convex points are provided on the side of the anti-skid pad 317 away from the adjustment block 313, and the shape of the plurality of convex points is hemispherical. By providing a plurality of convex points, the friction force with the circuit board can be increased, thereby reducing the possibility of circuit board deviation and improving the positioning accuracy of the circuit board.

[0039] Specifically, refer to Figure 2 and Figure 3, the anti-slip pad 317 is provided with a second bolt 318, and the second bolt 318 is in threaded connection with the adjusting block 313. The second bolt 318 passes through the anti-slip pad 317, and the second bolt 318 is in threaded connection with the adjusting block 313, so that the second bolt 318 can fix the anti-slip pad 317 on the pressing plate 312, thereby facilitating the installation and disassembly of the anti-slip pad 317 and facilitating the replacement of the anti-slip pad 317.

[0040] It can be understood that, referring to Figure 2 and Figure 4 , the second positioning component 320 further includes a connecting plate 326, a second driving member 327, a third driving member 328 and a fourth driving member 329. The connecting plate 326 is connected below the conveying table 210. The first positioning rod 321, the second positioning rod 322, the third positioning rod 323 and the fourth positioning rod 324 are all arranged on the connecting plate 326. The second driving member 327 is used to drive the connecting plate 326 to move up and down. The third driving member 328 and the fourth driving member 329 are both arranged on the connecting plate 326. The third driving member 328 is used to drive the second positioning rod 322 to move towards the first positioning rod 321, and the fourth driving member 329 is used to drive the fourth positioning rod 324 to move towards the third positioning rod 323. The first positioning rod 321, the second positioning rod 322, the third positioning rod 323 and the fourth positioning rod 324 are all arranged on the connecting plate 326. The second driving member 327 is used to drive the connecting plate 326 to move up and down, so that the first positioning rod 321, the second positioning rod 322, the third positioning rod 323 and the fourth positioning rod 324 can be lifted and lowered synchronously, facilitating pressing the circuit board on the conveying table 210. The third driving member 328 and the fourth driving member 329 are both arranged on the connecting plate 326. The third driving member 328 is used to drive the second positioning rod 322 to move towards or away from the first positioning rod 321, and the fourth driving member 329 is used to drive the fourth positioning rod 324 to move towards the third positioning rod 323, so as to realize the automatic positioning of the circuit board and improve the positioning efficiency of the circuit board.

[0041] It should be noted that the second driving member 327, the third driving member 328 and the fourth driving member 329 can all be linear cylinders, electric push rods or linear slide table modules, etc., which will not be elaborated here one by one.

[0042] In addition, multiple second positioning rods 322 are all connected to the movable end of the third driving member 328, and multiple fourth positioning rods 324 are all connected to the movable end of the fourth driving member 329, so that multiple second positioning rods 322 can move synchronously, and multiple fourth positioning rods 324 can move synchronously.

[0043] Specifically, referring to Figure 1 and Figure 2The conveying platform 210 is provided with a plurality of guide grooves 211, and the second positioning rod 322 and the fourth positioning rod 324 can slide in the guide grooves 211, and the diameters of the second positioning rod 322 and the fourth positioning rod 324 are equal to the width of the guide grooves 211. The plurality of guide grooves 211 are arranged on the conveying platform 210, and by setting the diameters of the second positioning rod 322 and the fourth positioning rod 324 to be equal to the width of the guide grooves 211, the second positioning rod 322 and the fourth positioning rod 324 can slide in the guide grooves 211, and the position shaking of the second positioning rod 322 and the fourth positioning rod 324 can be reduced, thereby improving the movement stability of the second positioning rod 322 and the fourth positioning rod 324.

[0044] It should be noted that the second positioning rod 322 and the guide groove 211, as well as the fourth positioning rod 324 and the guide groove 211 are in one-to-one correspondence.

[0045] It is understandable that, with reference to Figure 1 and Figure 2 , the moving assembly 220 includes a fixed seat 221, a guide rod 222, a screw rod 223, a slider 224 and a fifth driving member 225, the fixed seat 221 is fixedly connected to the frame 100, the guide rod 222 is fixedly connected to the fixed seat 221, the screw rod 223 is rotatably connected to the fixed seat 221, the slider 224 is slidably connected to the guide rod 222, and the slider 224 and the screw rod 223 are threadedly connected, the fifth driving member 225 is used to drive the screw rod 223 to rotate, and the conveying platform 210 is fixedly connected to the slider 224. The fixing seat 221 is fixedly connected to the frame 100, the guide rod 222 is fixedly connected to the fixing seat 221, the screw rod 223 is rotatably connected to the fixing seat 221, and the slider 224 is slidably connected to the guide rod 222, so that the slider 224 can move along the axial direction of the guide rod 222, and the screw rod 223 is driven to rotate by the fifth driving member 225, so that the screw rod 223 can drive the slider 224 to move along the axial direction, so that the slider 224 can drive the conveying platform 210 to move along the axial direction of the guide rod 222, so as to realize the automatic printing of the circuit board and improve the printing efficiency and stability of the circuit board.

[0046] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. Circuit board text printer, characterized in that: include: A frame is provided with a laser printing assembly, and the laser printing assembly is used to print the circuit board; The feeding mechanism comprises a conveying platform and a moving assembly, wherein the conveying platform is slidably connected to the frame, and the moving assembly is used to drive the conveying platform to move toward or away from the laser printing assembly; The positioning mechanism includes a first positioning component and a second positioning component, the first positioning component includes a first driving member and a pressure plate, the first driving member is arranged above the conveying platform, the first driving member is used to drive the pressure plate to move up and down so that the pressure plate can press the circuit board on the conveying platform, the second positioning component includes a plurality of positioning rods, the positioning rods are inserted into the conveying platform, and the upper ends of the positioning rods are provided with positioning plates, the shape of the conveying platform is rectangular, and the plurality of positioning rods are provided as a first positioning rod, a second positioning rod, a third positioning rod and a fourth positioning rod, and are respectively arranged on the four sides of the conveying platform, the first positioning rod, the second positioning rod, the third positioning rod and the fourth positioning rod can all move up and down so that the positioning plate can press the circuit board on the conveying platform, and the second positioning rod can move in a direction close to the first positioning rod, and the fourth positioning rod can move in a direction close to the third positioning rod.

2. The circuit board text printer according to claim 1, characterized in that: The first positioning assembly further includes a plurality of adjustment blocks, which are slidably connected to the pressure plate, and the plurality of adjustment blocks are spaced apart along the circumference of the pressure plate.

3. The circuit board text inkjet printer according to claim 2, characterized in that: The pressure plate is provided with a plurality of slide grooves, and the plurality of slide grooves are arranged along the circumference of the pressure plate. The adjustment block is penetrated by a first bolt, the first bolt is located in the slide groove, and the first bolt is threadedly connected with a nut, and the nut can abut against the side of the pressure plate away from the adjustment block.

4. The circuit board text inkjet printer according to claim 2, characterized in that: A side of the adjusting block facing away from the pressing plate is detachably connected with an anti-skid pad.

5. The circuit board text inkjet printer according to claim 4, characterized in that: The anti-slip pad is penetrated by a second bolt, and the second bolt is threadedly connected to the adjustment block.

6. The circuit board text inkjet printer according to claim 1, characterized in that: The second positioning assembly also includes a connecting plate, a second driving member, a third driving member and a fourth driving member. The connecting plate is connected to the bottom of the conveying platform. The first positioning rod, the second positioning rod, the third positioning rod and the fourth positioning rod are all arranged on the connecting plate. The second driving member is used to drive the connecting plate to move up and down. The third driving member and the fourth driving member are both arranged on the connecting plate. The third driving member is used to drive the second positioning rod to move in a direction close to the first positioning rod. The fourth driving member is used to drive the fourth positioning rod to move in a direction close to the third positioning rod.

7. The circuit board text jet printer according to claim 6, characterized in that: The conveying platform is provided with a plurality of guide grooves, and the second positioning rod and the fourth positioning rod can slide in the guide grooves, and the diameters of the second positioning rod and the fourth positioning rod are equal to the widths of the guide grooves.

8. The circuit board text inkjet printer according to claim 1, characterized in that: The moving assembly includes a fixed seat, a guide rod, a screw rod, a slider and a fifth driving member. The fixed seat is fixedly connected to the frame, the guide rod is fixedly connected to the fixed seat, the screw rod is rotatably connected to the fixed seat, the slider is slidably connected to the guide rod, and the slider and the screw rod are threadedly connected. The fifth driving member is used to drive the screw rod to rotate, and the conveying platform is fixedly connected to the slider.

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