Left-right double-winding and double-unwinding printing machine

Abstract

The utility model relates to the technical field of printing equipment, in particular to a left-right double-winding and double-unwinding printing machine. Through the structure that the printing units are arranged left and right and the driving assembly arranged between the printing towers corresponding to the two printing units, the driving assembly comprises a moving seat, gears and a transmission structure, switching between a first state and a second state is achieved by controlling Y-direction movement of the moving seat, and therefore the printing towers can be switched between the first state and the second state through meshing transmission of a third gear and a first gear. According to the double-unwinding and double-winding printing machine, through the meshing transmission of the first gear and the second gear and the meshing transmission of the fourth gear and the second gear, the rollers of the two printing towers on the two sides can be driven to rotate at the same time only through one driving motor. The two printing units distributed in the X direction work at the same time, and left-right double-winding and double-unwinding printing is achieved; only one driving motor is needed to simultaneously drive the rollers of the two printing towers which are distributed left and right for linkage driving, and the energy-saving and environment-friendly effects are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of printing equipment, in particular to a left and right double-retracting and double-releasing printing machine. Background Art

[0002] A Chinese patent with authorization announcement number CN212608351U discloses a double-receiving and double-unloading system for a printing machine, which includes a feeding mechanism, a receiving mechanism and a printing tower arranged along a straight line. There are multiple printing towers, and a continuous tensioning device is arranged above the feeding mechanism, the receiving mechanism and the printing tower; a group of feeding mechanisms and receiving mechanisms are placed on both sides of the printing tower, respectively, and the feeding mechanisms and receiving mechanisms are respectively equipped with a feeding traction device and a receiving traction device, and the feeding mechanisms and receiving mechanisms on both sides of the printing tower are used in combination.

[0003] In the above patent scheme, multiple groups of printing towers and winding and unwinding devices are arranged along a straight line. In order to increase production capacity, two groups of such printing machines are generally arranged side by side in the factory. Due to the existing printing machine structure, each group of printing machines is independent of each other. For example, the rollers of each printing tower are driven by independent drive motors respectively, and it is impossible to achieve the synchronous driving of the printing tower rollers of the left and right double-winding and double-unwinding printing machines by the same motor. Utility Model Content

[0004] The technical problem to be solved by the utility model is: how to realize synchronous driving of the printing tower rollers of the left and right double-receiving and double-releasing printing machines by the same motor.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] The left and right double-receiving and double-releasing printing machine comprises two printing machine groups arranged side by side in the X direction;

[0007] Each printing unit includes an unwinding mechanism, a plurality of printing towers and a rewinding mechanism which are sequentially distributed along the Y direction;

[0008] A drive assembly is connected between two printing towers arranged side by side in two printing units;

[0009] The driving assembly includes a first rotating shaft drivingly connected to the roller of the printing tower on the X-direction side, and a second rotating shaft drivingly connected to the roller of the printing tower on the opposite side of the X-direction;

[0010] The first rotating shaft is coaxially connected to a first gear, and the second rotating shaft is coaxially connected to a second gear;

[0011] The driving assembly also includes a moving seat movable in the Y direction, the moving seat is connected to a third gear via a third rotating shaft, and the moving seat is connected to a fourth gear via a fourth rotating shaft. When the moving seat moves in the Y direction to a first state, the third gear is meshed with the first gear, and the fourth gear is meshed with the second gear; when the moving seat moves in the Y direction in the opposite direction to a second state, the third gear is disengaged from the first gear, and the fourth gear is disengaged from the second gear;

[0012] The driving assembly further includes a fifth rotating shaft, which is rotatably connected to the moving base, the fifth rotating shaft is drivingly connected to the third rotating shaft through a first transmission mechanism, and the fifth rotating shaft is drivingly connected to the fourth rotating shaft through a second transmission mechanism;

[0013] The driving assembly further comprises a driving motor, which is drivingly connected to the fifth rotating shaft via a third transmission mechanism;

[0014] Further, in the above-mentioned left-right double-retractable and double-release printing press structure, a first shaped waist circular hole is provided in the middle of the first gear, the diameter of the first end of the first waist circular hole is larger than the diameter of the second end, and the axis of the first end of the first waist circular hole coincides with the axis of the first gear; it also includes a first driving cylinder and a first cylindrical limit block, the cylinder body of the first driving cylinder is connected to the frame, the first cylindrical limit block is connected to the piston rod of the first driving cylinder, the first cylindrical limit block is located in the first waist circular hole, and the diameter of the first cylindrical limit block is the same as the diameter of the second end of the first waist circular hole; the first cylindrical limit block switches between a first state and a second state under the drive of the first driving cylinder, in the first state, the first cylindrical limit block coincides with the axis of the first end of the first waist circular hole, and in the second state, the first cylindrical limit block coincides with the axis of the second end of the first waist circular hole;

[0015] A second slender circular hole of a special shape is provided in the middle part of the second gear, the diameter of the first end of the second slender circular hole is larger than the diameter of the second end, and the axis of the first end of the second slender circular hole coincides with the axis of the second gear; it also includes a second driving cylinder and a second cylindrical limit block, the cylinder body of the second driving cylinder is connected to the frame, the second cylindrical limit block is connected to the piston rod of the second driving cylinder, the second cylindrical limit block is located in the second slender circular hole, and the diameter of the second cylindrical limit block is the same as the diameter of the second end of the second slender circular hole; the second cylindrical limit block switches between a first state and a second state under the drive of the second driving cylinder, in the first state, the second cylindrical limit block coincides with the axis of the first end of the second slender circular hole, and in the second state, the second cylindrical limit block coincides with the axis of the second end of the second slender circular hole;

[0016] A third lumbar circular hole of a special shape is provided in the middle part of the third gear, the diameter of the first end of the third lumbar circular hole is larger than the diameter of the second end, and the axis of the first end of the third lumbar circular hole coincides with the axis of the third gear; it also includes a third driving cylinder and a third cylindrical limiting block, the cylinder body of the third driving cylinder is connected to the moving seat, the third cylindrical limiting block is connected to the piston rod of the third driving cylinder, the third cylindrical limiting block is located in the third lumbar circular hole, and the diameter of the third cylindrical limiting block is the same as the diameter of the second end of the third lumbar circular hole; the third cylindrical limiting block switches between a first state and a second state under the drive of the third driving cylinder, in the first state, the third cylindrical limiting block coincides with the axis of the first end of the third lumbar circular hole, and in the second state, the third cylindrical limiting block coincides with the axis of the second end of the third lumbar circular hole;

[0017] The fourth gear is provided with a special-shaped fourth waist circular hole in the middle part, the diameter of the first end of the fourth waist circular hole is larger than the diameter of the second end, and the axis of the first end of the fourth waist circular hole coincides with the axis of the fourth gear; it also includes a fourth driving cylinder and a fourth cylindrical limit block, the cylinder body of the fourth driving cylinder is connected to the moving seat, the fourth cylindrical limit block is connected to the piston rod of the fourth driving cylinder, the fourth cylindrical limit block is located in the fourth waist circular hole, and the diameter of the fourth cylindrical limit block is the same as the second end diameter of the fourth waist circular hole; the fourth cylindrical limit block switches between the first state and the second state under the drive of the fourth driving cylinder, in the first state, the fourth cylindrical limit block coincides with the first end axis of the fourth waist circular hole, and in the second state, the fourth cylindrical limit block coincides with the second end axis of the fourth waist circular hole.

[0018] Furthermore, in the above-mentioned left and right double-retractable and double-release printing press structure, the first transmission mechanism includes a first pulley, a second pulley and a first transmission belt, the first pulley is coaxially sleeved on the third rotating shaft, the second pulley is coaxially sleeved on the fifth rotating shaft, and the first transmission belt is connected between the first pulley and the second pulley.

[0019] Furthermore, in the above-mentioned left and right double-retractable and double-release printing press structure, the second transmission mechanism includes a third pulley, a fourth pulley and a second transmission belt, the third pulley is coaxially sleeved on the fourth rotating shaft, the fourth pulley is coaxially sleeved on the fifth rotating shaft, and the second transmission belt is connected between the third pulley and the fourth pulley.

[0020] Furthermore, in the above-mentioned left and right double-retractable and double-release printing press structure, the third transmission mechanism includes a fifth pulley, a sixth pulley and a third transmission belt, the fifth pulley is coaxially sleeved on the fifth rotating shaft, the sixth pulley is coaxially sleeved on the output shaft of the driving motor, and the third transmission belt is connected between the fifth pulley and the sixth pulley.

[0021] Furthermore, the above-mentioned left and right double-retractable and double-release printing machine structure also includes a screw guide rail assembly, the screw axis of the screw guide rail assembly is in the Y direction, and the movable seat is slidably connected to the screw guide rail assembly through a nut slider.

[0022] The beneficial effect of the utility model is that: through the structure of the left and right arrangement of the printing units and the drive components arranged between the printing towers corresponding to the two printing units, including the moving seat, the gears and the transmission structure, the switching between the first state and the second state is realized by controlling the Y-direction movement of the moving seat, so that the meshing transmission of the third gear and the first gear, and the meshing transmission of the fourth gear and the second gear are utilized, and only one driving motor is needed to simultaneously drive the rollers of the two printing towers on both sides to rotate simultaneously. The double-release and double-collection involved in the utility model refers to the two printing units distributed along the X direction working simultaneously to realize the left and right double-collection and double-release printing, so that only one driving motor is needed to simultaneously drive the rollers of the two printing towers distributed on the left and right to be linked and driven, thereby achieving the effect of energy saving and environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of a left-right double-retracting and double-releasing printing machine from a first perspective according to a specific embodiment of the utility model;

[0024] Figure 2 It is a structural schematic diagram of a left-right double-retracting and double-releasing printing machine from a second viewing angle according to a specific embodiment of the utility model;

[0025] Figure 3 for Figure 2 A magnified view of part A;

[0026] Figure 4 This is a Y-direction view of a left-right double-retracting and double-releasing printing machine according to a specific embodiment of the utility model;

[0027] Figure 5 for Figure 4 BB cross-section diagram;

[0028] Figure 6 It is a top view of a left and right double-retracting and double-releasing printing machine according to a specific embodiment of the utility model;

[0029] Figure 7 for Figure 6 CC cross-section diagram;

[0030] Figure 8 for Figure 7 A magnified view of the D portion;

[0031] Fig. 9 for Figure 5 A magnified view of part E;

[0032] Description of labels:

[0033] 1. Unwinding mechanism;

[0034] 2. Printing tower;

[0035] 3. Rewinding mechanism;

[0036] 4. Driving assembly; 411. first rotating shaft; 412. first gear; 413. first waisted hole; 414. first driving cylinder; 415. first cylindrical stopper; 421. second rotating shaft; 422. second gear; 423. second waisted hole; 424. second driving cylinder; 425. second cylindrical stopper; 43. moving seat; 431. third rotating shaft; 432. third gear; 4321. third waisted hole; 4322. third driving cylinder; 4323. third cylindrical stopper Block; 433, fourth rotating shaft; 434, fourth gear; 4341, fourth waist hole; 4342, fourth driving cylinder; 4343, fourth cylindrical stopper; 435, fifth rotating shaft; 436, driving motor; 441, first pulley; 442, second pulley; 443, first transmission belt; 451, third pulley; 452, fourth pulley; 453, second transmission belt; 461, fifth pulley; 462, sixth pulley; 463, third transmission belt;

[0037] 5. Screw guide rail assembly. DETAILED DESCRIPTION

[0038] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.

[0039] Please refer to Figures 1 to 9 , the specific implementation of the utility model relates to a left and right double-receiving and double-releasing printing machine, including two printing machine groups distributed side by side along the X direction;

[0040] Each printing unit group includes an unwinding mechanism 1, a plurality of printing towers 2 and a rewinding mechanism 3 which are sequentially distributed along the Y direction;

[0041] A drive assembly 4 is connected between two printing towers 2 arranged side by side in two printing units;

[0042] The driving assembly 4 includes a first rotating shaft 411 drivingly connected to the roller of the printing tower 2 on the X-direction side, and a second rotating shaft 421 drivingly connected to the roller of the printing tower 2 on the opposite side of the X-direction;

[0043] The first rotating shaft 411 is coaxially connected to a first gear 412, and the second rotating shaft 421 is coaxially connected to a second gear 422;

[0044] The driving assembly 4 further includes a moving seat 43 movable along the Y direction, the moving seat 43 is connected to a third gear 432 via a third rotating shaft 431, and the moving seat 43 is connected to a fourth gear 434 via a fourth rotating shaft 433. When the moving seat 43 moves in the Y direction to a first state, the third gear 432 is meshed with the first gear 412, and the fourth gear 434 is meshed with the second gear 422; when the moving seat 43 moves in the reverse direction of the Y direction to a second state, the third gear 432 is disengaged from the first gear 412, and the fourth gear 434 is disengaged from the second gear 422;

[0045] The driving assembly 4 further includes a fifth rotating shaft 435, which is rotatably connected to the moving base 43, the fifth rotating shaft 435 is transmission-connected to the third rotating shaft 431 through a first transmission mechanism, and the fifth rotating shaft 435 is transmission-connected to the fourth rotating shaft 433 through a second transmission mechanism;

[0046] The driving assembly 4 further includes a driving motor 436, and the driving motor 436 is drivingly connected to the fifth rotating shaft 435 via a third transmission mechanism;

[0047] The above control method of the left and right double-receiving and double-releasing printing machine comprises the following steps:

[0048] Two rolls of film to be printed are respectively installed on the unwinding mechanism 1 of each printing unit. After each roll of film to be printed is wound through a plurality of printing towers 2 in sequence, it is wound on the reeling mechanism 3 at the end of the reeling.

[0049] During startup, the movable seat 43 is controlled to move to the first state in the Y direction, so that the third gear 432 is meshed with the first gear 412, and the fourth gear 434 is meshed with the second gear 422, and the driving motor 436 is controlled to rotate, thereby driving the fifth shaft 435 to rotate, and then driving the fourth shaft 433 and the third shaft 431 to rotate, thereby driving the third gear 432 and the fourth gear 434 to rotate, thereby driving a gear and a second gear 422 to rotate synchronously, and driving the first shaft 411 and the second shaft 421 to rotate synchronously; thereby driving the rollers of the two printing towers 2 distributed on the left and right to rotate; after printing is completed, the movable seat 43 is controlled to move in the opposite direction of the Y direction to the second state, so that the first gear 412 is disengaged from the third gear 432, and the fourth gear 434 is disengaged from the second gear 422, and the driving motor 436 is controlled to stop.

[0050] In the above embodiment, in the structure of the driving assembly 4 of a specific structure, the switching between the first state and the second state is realized by controlling the Y-direction movement of the moving seat 43, so that the meshing transmission of the third gear 432 and the first gear 412, and the meshing transmission of the fourth gear 434 and the second gear 422 are utilized, and only one driving motor 436 is needed to simultaneously drive the rollers of the two printing towers 2 on both sides to rotate simultaneously. The double-release and double-collection involved in the utility model refers to two groups of printing units distributed along the X direction working simultaneously, in which one group of printing units, the film roll to be printed is released from the unwinding mechanism 1, and is sequentially wound around a plurality of printing towers 2 sequentially distributed along the Y direction, and an oven is provided above each printing tower 2, so that the printed film is dried in the oven and then transferred to the next printing tower 2 for printing, and the number of printing towers 2 to which the film is attached depends on the number of printings required by the process, and the printed film is finally wound around the roller of the winding mechanism 3 for collection, and the two groups of printing units arranged side by side are simultaneously driven by the central driving assembly 4 to realize the function of double-release and double-collection, Figure 1 Some traction roller structures are omitted, such as the traction roller group located between the unwinding mechanism 1 and the printing tower 2, and the traction roller group located between the printing tower 2 and the winding roller group. The function of these structures is to enable the film to be more smoothly transported between the printing tower 2 and the unwinding mechanism 1 and between the printing tower 2 and the winding mechanism 3. These structures are conventional technical means in this field and are not the focus of protection of the present utility model. Therefore, the present utility model omits the discussion on the principles of the specific printing process of the film.

[0051] As a preferred embodiment, a first shaped round hole 413 is provided in the middle of the first gear 412, the diameter of the first end of the first round hole 413 is larger than the diameter of the second end, and the axis of the first end of the first round hole 413 coincides with the axis of the first gear 412; it also includes a first driving cylinder 414 and a first cylindrical stopper 415, the cylinder body of the first driving cylinder 414 is connected to the frame, the first cylindrical stopper 415 is connected to the piston rod of the first driving cylinder 414, the first cylindrical stopper 415 is located in the first round hole 413, and the diameter of the first cylindrical stopper 415 is the same as the diameter of the second end of the first round hole 413; the first cylindrical stopper 415 switches between a first state and a second state under the drive of the first driving cylinder 414, in the first state, the first cylindrical stopper 415 coincides with the axis of the first end of the first round hole 413, and in the second state, the first cylindrical stopper 415 coincides with the axis of the second end of the first round hole 413;

[0052] A second lumbar circular hole 423 with a special shape is provided in the middle of the second gear 422, the diameter of the first end of the second lumbar circular hole 423 is larger than the diameter of the second end, and the axis of the first end of the second lumbar circular hole 423 coincides with the axis of the second gear 422; it also includes a second driving cylinder 424 and a second cylindrical limit block 425, the cylinder body of the second driving cylinder 424 is connected to the frame, the second cylindrical limit block 425 is connected to the piston rod of the second driving cylinder 424, the second cylindrical limit block 425 is located in the second lumbar circular hole 423, and the diameter of the second cylindrical limit block 425 is the same as the second end diameter of the second lumbar circular hole 423; the second cylindrical limit block 425 switches between a first state and a second state driven by the second driving cylinder 424, in the first state, the second cylindrical limit block 425 coincides with the first end axis of the second lumbar circular hole 423, and in the second state, the second cylindrical limit block 425 coincides with the second end axis of the second lumbar circular hole 423;

[0053] The third gear 432 is provided with a third shaped waisted circular hole 4321 in the middle part, the diameter of the first end of the third waisted circular hole 4321 is larger than the diameter of the second end, and the axis of the first end of the third waisted circular hole 4321 coincides with the axis of the third gear 432; it also includes a third driving cylinder 4322 and a third cylindrical limiting block 4323, the cylinder body of the third driving cylinder 4322 is connected to the moving seat 43, the third cylindrical limiting block 4323 is connected to the piston rod of the third driving cylinder 4322, and the third cylindrical limiting block 4323 is connected to the piston rod of the third driving cylinder 4322. The limiting block 4323 is located in the third waisted circular hole 4321, and the diameter of the third cylindrical limiting block 4323 is the same as the diameter of the second end of the third waisted circular hole 4321; the third cylindrical limiting block 4323 switches between the first state and the second state under the drive of the third driving cylinder 4322. In the first state, the third cylindrical limiting block 4323 coincides with the axis of the first end of the third waisted circular hole 4321, and in the second state, the third cylindrical limiting block 4323 coincides with the axis of the second end of the third waisted circular hole 4321;

[0054] The fourth gear 434 is provided with a fourth shaped waisted circular hole 4341 in the middle part, the diameter of the first end of the fourth waisted circular hole 4341 is larger than the diameter of the second end, and the axis of the first end of the fourth waisted circular hole 4341 coincides with the axis of the fourth gear 434; it also includes a fourth driving cylinder 4342 and a fourth cylindrical limiting block 4343, the cylinder body of the fourth driving cylinder 4342 is connected to the moving seat 43, the fourth cylindrical limiting block 4343 is connected to the piston rod of the fourth driving cylinder 4342, and the fourth cylindrical limiting block 4343 is connected to the piston rod of the fourth driving cylinder 4342. The limiting block 4343 is located in the fourth round hole 4341, and the diameter of the fourth cylindrical limiting block 4343 is the same as the diameter of the second end of the fourth round hole 4341; the fourth cylindrical limiting block 4343 is switched between the first state and the second state under the drive of the fourth driving cylinder 4342. In the first state, the fourth cylindrical limiting block 4343 coincides with the axis of the first end of the fourth round hole 4341, and in the second state, the fourth cylindrical limiting block 4343 coincides with the axis of the second end of the fourth round hole 4341;

[0055] In the control method, before the movable seat 43 is controlled to move in the Y direction, when it is in the second state, the first driving cylinder 414 is controlled to drive the first cylindrical limiting block 415 to move to the second end of the first waist circular hole 413, the second driving cylinder 424 is controlled to drive the second cylindrical limiting block 425 to move to the second end of the second waist circular hole 423, the third driving cylinder 4322 is controlled to drive the third cylindrical limiting block 4323 to move to the second end of the third waist circular hole 4321, and the fourth driving cylinder 4342 is controlled to drive the fourth cylindrical limiting block 4343 to move to the second end of the fourth waist circular hole 4341; the first gear 412 and the third gear 432 are adjusted to the position where they can be meshed, and at the same time, the second gear 422 and the fourth gear 434 are adjusted to the position where they can be meshed;

[0056] After controlling the movable seat 43 to move in the Y direction, when it is in the first state, control the first driving cylinder 414 to drive the first cylindrical limit block 415 to move to the first end of the first waist hole 413, control the second driving cylinder 424 to drive the second cylindrical limit block 425 to move to the first end of the second waist hole 423, control the third driving cylinder 4322 to drive the third cylindrical limit block 4323 to move to the first end of the third waist hole 4321, and control the fourth driving cylinder 4342 to drive the fourth cylindrical limit block 4343 to move to the first end of the fourth waist hole 4341.

[0057] In the above embodiments, for example, when the first gear 412 and the third gear 432 move toward each other to engage, there may be a situation where the tooth tops of the first gear 412 and the third gear 432 are in contact, resulting in the first gear 412 and the third gear 432 being unable to engage smoothly. By designing the structure of each waist circular hole, telescopic cylinder and cylindrical limit block, before the first gear 412 and the third gear 432 engage, the cylindrical limit block is controlled to move to the second end of the corresponding waist circular hole so that the corresponding gear is rotated to a specific angle. At this angle, the first gear 412 and the third gear 432 can achieve meshing and docking of the tooth top and the tooth root. After the meshing and docking, the cylindrical limit block is controlled to move to the first end of the corresponding waist circular hole so that the cylindrical limit block is no longer in contact with the waist circular hole, thereby no longer affecting the rotation of the corresponding gear, so that the drive motor 436 can smoothly drive the rollers of the printing towers 2 on both sides to rotate.

[0058] As a preferred embodiment, the first transmission mechanism includes a first pulley 441, a second pulley 442 and a first transmission belt 443, the first pulley 441 is coaxially sleeved on the third rotating shaft 431, the second pulley 442 is coaxially sleeved on the fifth rotating shaft 435, and the first transmission belt 443 is connected between the first pulley 441 and the second pulley 442.

[0059] As a preferred embodiment, the second transmission mechanism includes a third pulley 451, a fourth pulley 452 and a second transmission belt 453, the third pulley 451 is coaxially sleeved on the fourth rotating shaft 433, the fourth pulley 452 is coaxially sleeved on the fifth rotating shaft 435, and the second transmission belt 453 is connected between the third pulley 451 and the fourth pulley 452.

[0060] As a preferred embodiment, the third transmission mechanism includes a fifth pulley 461, a sixth pulley 462 and a third transmission belt 463, the fifth pulley 461 is coaxially sleeved on the fifth rotating shaft 435, the sixth pulley 462 is coaxially sleeved on the output shaft of the driving motor 436, and the third transmission belt 463 is connected between the fifth pulley 461 and the sixth pulley 462.

[0061] As a preferred embodiment, the first driving cylinder 414 is a pneumatic cylinder, a hydraulic cylinder or an electric cylinder.

[0062] As a preferred embodiment, the second driving cylinder 424 is a pneumatic cylinder, a hydraulic cylinder or an electric cylinder.

[0063] As a preferred embodiment, the third driving cylinder 4322 is a pneumatic cylinder, a hydraulic cylinder or an electric cylinder.

[0064] As a preferred embodiment, the fourth driving cylinder 4342 is a pneumatic cylinder, a hydraulic cylinder or an electric cylinder.

[0065] As a preferred embodiment, it also includes a screw guide rail assembly 5, the screw axis of the screw guide rail assembly 5 is in the Y direction, and the moving seat 43 is slidably connected to the screw guide rail assembly 5 through a nut slider.

[0066] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. Left and right double-receiving and double-releasing printing machine, characterized in that: It includes two printing machine groups arranged side by side along the X direction; Each printing unit includes an unwinding mechanism, a plurality of printing towers and a rewinding mechanism which are sequentially distributed along the Y direction; A drive assembly is connected between two printing towers arranged side by side in two printing units; The driving assembly includes a first rotating shaft drivingly connected to the roller of the printing tower on the X-direction side, and a second rotating shaft drivingly connected to the roller of the printing tower on the opposite side of the X-direction; The first rotating shaft is coaxially connected to a first gear, and the second rotating shaft is coaxially connected to a second gear; The driving assembly also includes a moving seat movable in the Y direction, the moving seat is connected to a third gear via a third rotating shaft, and the moving seat is connected to a fourth gear via a fourth rotating shaft. When the moving seat moves in the Y direction to a first state, the third gear is meshed with the first gear, and the fourth gear is meshed with the second gear; when the moving seat moves in the Y direction in the opposite direction to a second state, the third gear is disengaged from the first gear, and the fourth gear is disengaged from the second gear; The driving assembly further includes a fifth rotating shaft, which is rotatably connected to the moving base, the fifth rotating shaft is drivingly connected to the third rotating shaft through a first transmission mechanism, and the fifth rotating shaft is drivingly connected to the fourth rotating shaft through a second transmission mechanism; The driving assembly also includes a driving motor, which is drivingly connected to the fifth rotating shaft via a third transmission mechanism.

2. The left and right double-receiving and double-releasing printing machine according to claim 1, characterized in that: A first lumbar hole of a special shape is provided in the middle of the first gear, the diameter of the first end of the first lumbar hole is larger than the diameter of the second end, and the axis of the first end of the first lumbar hole coincides with the axis of the first gear; it also includes a first driving cylinder and a first cylindrical limit block, the cylinder body of the first driving cylinder is connected to the frame, the first cylindrical limit block is connected to the piston rod of the first driving cylinder, the first cylindrical limit block is located in the first lumbar hole, and the diameter of the first cylindrical limit block is the same as the diameter of the second end of the first lumbar hole; the first cylindrical limit block switches between a first state and a second state under the drive of the first driving cylinder, in the first state, the first cylindrical limit block coincides with the axis of the first end of the first lumbar hole, and in the second state, the first cylindrical limit block coincides with the axis of the second end of the first lumbar hole; A second slender circular hole of a special shape is provided in the middle part of the second gear, the diameter of the first end of the second slender circular hole is larger than the diameter of the second end, and the axis of the first end of the second slender circular hole coincides with the axis of the second gear; it also includes a second driving cylinder and a second cylindrical limit block, the cylinder body of the second driving cylinder is connected to the frame, the second cylindrical limit block is connected to the piston rod of the second driving cylinder, the second cylindrical limit block is located in the second slender circular hole, and the diameter of the second cylindrical limit block is the same as the diameter of the second end of the second slender circular hole; the second cylindrical limit block switches between a first state and a second state under the drive of the second driving cylinder, in the first state, the second cylindrical limit block coincides with the axis of the first end of the second slender circular hole, and in the second state, the second cylindrical limit block coincides with the axis of the second end of the second slender circular hole; A third lumbar circular hole of a special shape is provided in the middle part of the third gear, the diameter of the first end of the third lumbar circular hole is larger than the diameter of the second end, and the axis of the first end of the third lumbar circular hole coincides with the axis of the third gear; it also includes a third driving cylinder and a third cylindrical limiting block, the cylinder body of the third driving cylinder is connected to the moving seat, the third cylindrical limiting block is connected to the piston rod of the third driving cylinder, the third cylindrical limiting block is located in the third lumbar circular hole, and the diameter of the third cylindrical limiting block is the same as the diameter of the second end of the third lumbar circular hole; the third cylindrical limiting block switches between a first state and a second state under the drive of the third driving cylinder, in the first state, the third cylindrical limiting block coincides with the axis of the first end of the third lumbar circular hole, and in the second state, the third cylindrical limiting block coincides with the axis of the second end of the third lumbar circular hole; The fourth gear is provided with a special-shaped fourth waist circular hole in the middle part, the diameter of the first end of the fourth waist circular hole is larger than the diameter of the second end, and the axis of the first end of the fourth waist circular hole coincides with the axis of the fourth gear; it also includes a fourth driving cylinder and a fourth cylindrical limit block, the cylinder body of the fourth driving cylinder is connected to the moving seat, the fourth cylindrical limit block is connected to the piston rod of the fourth driving cylinder, the fourth cylindrical limit block is located in the fourth waist circular hole, and the diameter of the fourth cylindrical limit block is the same as the second end diameter of the fourth waist circular hole; the fourth cylindrical limit block switches between the first state and the second state under the drive of the fourth driving cylinder, in the first state, the fourth cylindrical limit block coincides with the first end axis of the fourth waist circular hole, and in the second state, the fourth cylindrical limit block coincides with the second end axis of the fourth waist circular hole.

3. The left and right double-receiving and double-releasing printing machine according to claim 1, characterized in that: The first transmission mechanism includes a first pulley, a second pulley and a first transmission belt. The first pulley is coaxially sleeved on the third rotating shaft, the second pulley is coaxially sleeved on the fifth rotating shaft, and the first transmission belt is connected between the first pulley and the second pulley.

4. The left and right double-receiving and double-releasing printing machine according to claim 1, characterized in that: The second transmission mechanism includes a third pulley, a fourth pulley and a second transmission belt, the third pulley is coaxially sleeved on the fourth rotating shaft, the fourth pulley is coaxially sleeved on the fifth rotating shaft, and the second transmission belt is connected between the third pulley and the fourth pulley.

5. The left and right double-receiving and double-releasing printing machine according to claim 1, characterized in that: The third transmission mechanism includes a fifth pulley, a sixth pulley and a third transmission belt. The fifth pulley is coaxially sleeved on the fifth rotating shaft, the sixth pulley is coaxially sleeved on the output shaft of the driving motor, and the third transmission belt is connected between the fifth pulley and the sixth pulley.

6. The left and right double-receiving and double-releasing printing machine according to claim 1, characterized in that: It also includes a screw guide rail assembly, the screw axis of the screw guide rail assembly is in the Y direction, and the moving seat is slidably connected to the screw guide rail assembly through a nut slider.

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