Automatic feeding mechanism of flexible plate printing machine

Abstract

The utility model relates to the technical field of printing machine feeding, and discloses an automatic feeding mechanism of a flexible plate printing machine, which comprises a bottom plate, a fixing frame is fixedly connected to the left side of the top end of the bottom plate, fixing plates are fixedly connected to the front side and the rear side of the right end of the top of the bottom plate, and a conveying belt is arranged between the fixing plates and the fixing frame. A positioning plate is fixedly connected between every two adjacent fixing plates, a motor is fixedly connected to the left side of each positioning plate, a rotating rod is fixedly connected to the output end of each motor, and a threaded rod is in threaded connection to the inner side of each rotating rod. The motor is started to drive the threaded rod to move so as to enable the mounting cover to move, the spring is utilized to push the cleaning brush and start the fan, impurity cleaning and moisture blow-drying are achieved, the two fixing rods are rotated to enable the conveying belt and the flexible plate to be bent and tightened, and meanwhile the tightening sleeve is used for reducing abrasion and tightening the conveying belt to improve the fixing effect.

Description

Technical Field

[0001] The utility model relates to the technical field of feeding of printing machines, in particular to an automatic feeding mechanism for a flexible plate printing machine. Background Art

[0002] A flexible plate printing machine is a machine that uses a flexible printing plate for printing. It uses a fluid ink with relatively strong fluidity. The ink is transferred to the graphic part of the printing plate through an ink fountain rubber roller and an anilox roller and is inked. Then, a printing pressure is applied by a pressure roller to transfer the ink on the printing plate to the printing substrate, and finally, the printing process is completed after drying. To facilitate feeding of the flexible printing machine, an automatic feeding mechanism for a flexible plate printing machine is required.

[0003] After retrieval, the Chinese patent publication number is: CN220075899U, which discloses a feeding mechanism for a flexible plate printing machine, including a base. A feeding box is arranged on the top of the base. A lifting motor is fixedly installed on the top of the support frame by screws. The output end of the lifting motor is connected with a lifting rod. A roller is movably connected to the inner wall of the moving frame. A dust suction box I is also arranged on the top of the fixed base. A dust suction fan is snap-fitted and installed on the top of the dust suction box I. Dust collection bags with the same structure are threadedly connected to the outer walls on both sides of the dust suction box I. A guide plate is connected to the end of the advancing and retreating rod. A high-voltage power generator is arranged on the top of the fixed frame. A round rod discharge electrode is arranged on the inner wall of the fixed frame. It can effectively adsorb dust on the surface of the flexible plate, wipe and clean the dust on the surface of the flexible plate with a cleaning sleeve for effective dust removal, and can eliminate static electricity on the surface of the flexible plate, and can also guide flexible plates of various sizes. However, when the device is actually used, it only cleans impurities by sucking air with a fan, and cannot effectively clean impurities that adhere deeply or are sticky, resulting in residual impurities after cleaning, thereby reducing the practicability of the device. Summary of the Utility Model

[0004] In order to make up for the above deficiencies, the utility model provides an automatic feeding mechanism for a flexible plate printing machine, aiming to improve the problem of insufficient cleaning effect of adhered impurities by the feeding mechanism in the prior art.

[0005] To achieve the above object, the utility model adopts the following technical solutions: An automatic feeding mechanism for a flexible plate printing machine, including a bottom plate, a fixed frame is fixedly connected to the left side of the top end of the bottom plate, and fixing plates are fixedly connected to the front and rear sides of the right end of the top of the bottom plate. A conveyor belt is arranged between the adjacent fixing plates and the fixed frame. A positioning plate is fixedly connected between the adjacent two fixing plates. A motor is fixedly connected to the left side of the positioning plate. The output end of the motor is fixedly connected to a rotating rod. A threaded rod is in threaded connection with the inner side of the rotating rod. Guide rods are fixedly connected to the front and rear sides of the outer wall of the positioning plate. An installation cover is slidably connected to the outer side of the guide rod. First springs are fixedly connected to the front and rear sides of the inner wall of the installation cover. The other end of the first spring is fixedly connected to a hollow plate. Cleaning brushes are fixedly connected to the left and right sides of the top end of the hollow plate. An impurity groove is fixedly connected to the inner side of the fixed frame. Air blowers are communicated with the front and rear sides of the impurity groove. The output end of the air blower is communicated with a hose. The other end of the hose is communicated with the installation cover. A tightening mechanism is arranged on the outer side of the bottom plate. The tightening mechanism is used to adjust the tightness of the conveyor belt.

[0006] Through the above technical solutions: Start the conveyor belt to convey the flexible plate, and at the same time start the motor to drive the rotating rod to rotate, so that the threaded rod moves. With the restriction of the guide rod and the installation cover, the installation cover moves. The spring inside it pushes the cleaning brush to contact the conveyor belt, so as to clean impurities. In addition, start the air blower to suck the impurities into the impurity groove, and the discharged air flow is discharged from the installation cover through the hose, which can blow away the impurities on the surface of the conveyor belt and dry the moisture. In this way, the impurities attached deeply or adhesively can be cleaned, and the practicability of the device is improved.

[0007] As a further description of the above technical solutions:

[0008] The tightening mechanism includes a motor, the motor is fixedly connected to the front side of the front fixing plate, grooves are opened on the adjacent sides of the two fixing plates, rotating disks are rotatably connected to the inner sides of the two grooves, fixing rods are fixedly connected to the upper and lower sides of the outer wall of the rotating disk, tightening sleeves are rotatably connected to the outer sides of the two fixing rods, and the output end of the motor penetrates through the fixing plate and is fixedly connected to the front rotating disk.

[0009] Through the above technical solutions: After starting the motor, the rotating disk will rotate along the groove, and then drive the fixing rod to rotate. Since the two fixing rods are respectively located on the upper and lower sides of the conveyor belt, their rotation will bend and tighten the conveyor belt and the flexible plate. At the same time, the tightening sleeves rotating on the outer sides of the fixing rods can reduce the wear of the fixing rods when collecting the conveyor belt. By tightening the conveyor belt, the fixing effect between the flexible plate and the conveyor belt is improved, and the stability of the device is thus improved.

[0010] As a further description of the above technical solutions:

[0011] A movable door is provided on the left side of the impurity tank. A hinge is fixedly connected to the outer side of the movable door. The movable door is rotatably connected to the impurity tank through the hinge.

[0012] Through the above technical solution: The movable door can be opened and closed through the hinge so as to clean the impurities in the impurity tank.

[0013] As a further description of the above technical solution:

[0014] A water tank is fixedly connected to the left side of the movable door. A water pump is communicated with the top end of the water tank. A spray plate is communicated with the top end of the water pump.

[0015] Through the above technical solution: By starting the water pump, the water in the water tank can be sprayed out through the spray plate, improving the cleaning effect on the conveyor belt and reducing the generation of static electricity.

[0016] As a further description of the above technical solution:

[0017] A second spring is fixedly connected to the periphery of the bottom of the inner wall of the impurity tank. The other end of the second spring is fixedly connected to a filter screen.

[0018] Through the above technical solution: As the filter screen gradually becomes heavier due to the collected impurities, it compresses the second spring, thereby judging whether it needs to be cleaned according to the sinking degree of the filter screen.

[0019] As a further description of the above technical solution:

[0020] A limiting block is fixedly connected to the front side of the left end of the movable door. A limiting plate is rotatably connected to the front side of the left side of the limiting block. The limiting block is engaged with the limiting plate.

[0021] Through the above technical solution: By rotating the limiting plate to engage it with the limiting block, the movable door can be fixed.

[0022] As a further description of the above technical solution:

[0023] Chute grooves are respectively formed in the front and rear sides of the inner wall of the fixed frame. Sliders are slidably connected to the inner sides of the chute grooves. A brush is rotatably connected between the two adjacent sliders.

[0024] Through the above technical solution: By sliding the slider and the brush thereon along the chute groove, flexible plates with different thicknesses can be fixed.

[0025] As a further description of the above technical solution:

[0026] Positioning blocks are fixedly connected to the periphery of the outer wall of the bottom plate. Positioning holes are respectively formed in the outer sides of the plurality of positioning blocks.

[0027] Through the above technical solution: By installing a threaded part in the positioning hole, the device can be fixed.

[0028] The utility model has the following beneficial effects:

[0029] 1. In the utility model, by starting the conveyor belt to convey the flexible plate and starting the motor to drive the rotating rod to move the threaded rod, the mounting cover is restricted by the guide rod to move. The spring inside it pushes the cleaning brush to contact the conveyor belt to clean impurities. At the same time, the blower is started to suck the impurities into the impurity tank, and the discharged air flow is discharged from the mounting cover through the hose to blow away the impurities on the surface of the conveyor belt and dry the moisture, which can clean the impurities that adhere deeply or are sticky, thereby improving the practicability of the device.

[0030] 2. In the utility model, by starting the motor to drive the rotating disk to rotate along the groove, the fixed rod rotates accordingly. Since the two fixed rods are located on the upper and lower sides of the conveyor belt respectively, their rotation will bend and tighten the conveyor belt and the flexible plate. At the same time, the tightening sleeve rotating on the outside of the fixed rod can reduce the wear of the fixed rod when collecting the conveyor belt, so as to improve the fixing effect of the flexible plate and the conveyor belt by tightening the conveyor belt, thereby improving the stability of the device. Description of the Drawings

[0031] Figure 1 is a three-dimensional view of an automatic feeding mechanism of a flexible plate printing machine proposed by the utility model;

[0032] Figure 2 is a front view of an automatic feeding mechanism of a flexible plate printing machine proposed by the utility model;

[0033] Figure 3 is a partial structural split view of an automatic feeding mechanism of a flexible plate printing machine proposed by the utility model;

[0034] Figure 4 is a partial structural explosion diagram of an automatic feeding mechanism of a flexible plate printing machine proposed by the utility model;

[0035] Figure 5 is a display diagram of the tightening mechanism of an automatic feeding mechanism of a flexible plate printing machine proposed by the utility model.

[0036] Legend Explanation:

[0037] 1. Bottom plate; 2. Tightening mechanism; 201. Motor; 202. Groove; 203. Rotating disk; 204. Fixed rod; 205. Tightening sleeve; 3. Fixed plate; 4. Fixed frame; 5. Positioning plate; 6. Motor; 7. Conveyor belt; 8. Rotating rod; 9. Threaded rod; 10. Installation cover; 11. First spring; 12. Hollow plate; 13. Cleaning brush; 14. Impurity tank; 15. Fan; 16. Hose; 17. Water tank; 18. Water pump; 19. Spraying plate; 20. Activity door; 21. Hinge; 22. Second spring; 23. Filter screen; 24. Limit block; 25. Limit plate; 26. Positioning block; 27. Positioning hole; 28. Guide rod; 29. Slide groove; 30. Slide block; 31. Brush. Detailed implementation mode

[0038] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0039] Refer to Figure 1 , Figure 3 and Figure 4 , an embodiment provided by the present invention: an automatic feeding mechanism for a flexible plate printing machine, including a bottom plate 1, a fixed frame 4 is fixedly connected to the left side of the top end of the bottom plate 1, fixed plates 3 are fixedly connected to the front and rear sides of the right end of the top of the bottom plate 1, a conveyor belt 7 is arranged between the adjacent fixed plates 3 and the fixed frame 4, a positioning plate 5 is fixedly connected between the adjacent two fixed plates 3, a motor 6 is fixedly connected to the left side of the positioning plate 5, a rotating rod 8 is fixedly connected to the output end of the motor 6, a threaded rod 9 is threadedly connected to the inner side of the rotating rod 8, guide rods 28 are fixedly connected to the front and rear sides of the outer wall of the positioning plate 5, an installation cover 10 is slidably connected to the outer side of the guide rod 28, first springs 11 are fixedly connected to the front and rear sides of the inner wall of the installation cover 10, the other ends of the first springs 11 are fixedly connected to a hollow plate 12, cleaning brushes 13 are fixedly connected to the left and right sides of the top end of the hollow plate 12, an impurity tank 14 is fixedly connected to the inner side of the fixed frame 4, fans 15 are communicated with the front and rear sides of the impurity tank 14, the output ends of the fans 15 are communicated with a hose 16, and the other end of the hose 16 is communicated with the installation cover 10. A tightening mechanism 2 is arranged on the outer side of the bottom plate 1, and the tightening mechanism 2 is used to adjust the tightness of the conveyor belt 7;

[0040] Specifically, the conveyor belt 7 can be started to convey the flexible board. At the same time, the motor 6 is started to drive the rotating rod 8 to rotate, so as to drive the threaded rod 9 to move left and right through threaded connection. At the same time, through the restriction of the guide rod 28 and the mounting cover 10, the mounting cover 10 can be driven to move left and right. Through the elastic potential energy of the first spring 11 inside it, the hollow board 12 and the cleaning brush 13 thereon can be pushed. No matter how much it is worn, it can keep in contact with the conveyor belt 7 to clean the impurities on its surface. At the same time, the fan 15 is started to suck the impurities into the impurity tank 14. The exhausted air flow will be discharged from the mounting cover 10 through the hose 16, blowing the impurities on the surface of the conveyor belt 7 away and drying the moisture. Among them, the conveyor belt 7 can use a CC-56 type canvas conveyor belt. Among them, the motor 6 can use a YE3 vertical three-phase AC asynchronous motor, and the fan 15 can use a -19 high-pressure centrifugal fan.

[0041] Refer to Figure 1 、 Figure 2 and Figure 5 As shown in FIGS.

[0042] Specifically, starting the motor 201 can drive the rotating disk 203 to rotate along the groove 202, so as to drive the fixing rods 204 thereon to rotate simultaneously. Since the two fixing rods 204 are respectively on the upper and lower sides of the conveyor belt 7, at this time, as the fixing rods 204 rotate, the conveyor belt 7 and the flexible board conveyed thereon will be bent and tightened. At the same time, through the rotation of the tightening sleeves 205 rotating on the outer sides of the fixing rods 204, the wear caused by the fixing rods 204 to the conveyor belt 7 can be reduced when collecting the conveyor belt 7, so as to improve the fixing effect between the flexible board and the conveyor belt 7. Among them, the motor 201 can use

[0043] Refer to Figure 2 、 Figure 4 and Figure 5 As shown in FIGS.

[0044] Specifically, the movable door 20 can be opened and closed through the hinge 21 to clean the impurities in the impurity tank 14. By starting the water pump 18, the water in the water tank 17 can be sprayed in a mist to clean the conveyor belt 7 and simultaneously reduce the static electricity that may be generated during the operation of the device. Due to the elasticity of the second spring 22 itself, after the filter screen 23 collects dust and impurities, it can drive the filter screen 23 to move downward along the impurity tank 14 to determine whether the internal impurities need to be cleaned by observing the position of the filter screen 23. Among them, the water pump 18 can use a DB-25 three-phase electric pump.

[0045] Refer to Figure 1 、 Figure 2 and Figure 5 , a limiting block 24 is fixedly connected to the front side of the left end of the movable door 20, a limiting plate 25 is rotatably connected to the front side of the left side of the limiting block 24, and the limiting block 24 is engaged with the limiting plate 25; sliding grooves 29 are provided on the front and rear sides of the inner wall of the fixed frame 4, sliders 30 are slidably connected to the inner sides of the sliding grooves 29, and a brush 31 is rotatably connected between the two adjacent sliders 30; positioning blocks 26 are fixedly connected to the peripheries of the outer walls of the bottom plate 1, and positioning holes 27 are provided on the outer sides of the plurality of positioning blocks 26;

[0046] Specifically, by rotating the limiting plate 25 to engage it with the limiting block 24, the accidental opening of the movable door 20 during use can be prevented. The sliding groove 29 can allow the slider 30 and the brush 31 thereon to move up and down, so that the brush 31 can further clean the flexible plates of different specifications being conveyed. By installing threaded parts in the positioning holes 27 on the positioning blocks 26, it is convenient to install and fix the device.

[0047] Working principle: Before using the device, first start the conveyor belt 7 to convey the flexible plate. At the same time, start the motor 6 to drive the rotating rod 8 to rotate, so that the threaded rod 9 moves left and right. Under the restriction of the guide rod 28 and the mounting cover 10, the mounting cover 10 is driven to move. The elastic potential energy of the first spring 11 inside it pushes the cleaning brush 13 on the hollow plate 12 to always keep in contact with the conveyor belt 7 to clean the impurities on its surface. Start the fan 15 to suck the impurities into the inner side of the impurity tank 14, and the discharged air flow is discharged from the mounting cover 10 through the hose 16 to blow off the impurities on the surface of the conveyor belt 7 and dry the moisture;

[0048] Starting the motor 201 can drive the rotating disk 203 to rotate in the groove 202, thereby driving the fixed rods 204 thereon to rotate together. Since the two fixed rods 204 are respectively located on the upper and lower sides of the conveyor belt 7, when the fixed rods 204 rotate, the conveyor belt 7 and the flexible plate conveyed thereon will be bent and tightened. At the same time, through the rotation of the tightening sleeve 205 rotating on the outside of the fixed rod 204, the wear caused by the fixed rod 204 to the conveyor belt 7 can be reduced when collecting the conveyor belt 7, thereby improving the fixing effect between the flexible plate and the conveyor belt 7.

[0049] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An automatic feeding mechanism for a flexographic printing press, comprising a bottom plate (1), characterized in that: The left side of the top end of the bottom plate (1) is fixedly connected with a fixed frame (4). The front and rear sides of the right end of the top of the bottom plate (1) are both fixedly connected with fixing plates (3). A conveyor belt (7) is arranged between the adjacent fixing plates (3) and the fixed frame (4). A positioning plate (5) is fixedly connected between the adjacent two fixing plates (3). A motor (6) is fixedly connected to the left side of the positioning plate (5). The output end of the motor (6) is fixedly connected with a rotating rod (8). A threaded rod (9) is in threaded connection with the inner side of the rotating rod (8). Guide rods (28) are fixedly connected to the front and rear sides of the outer wall of the positioning plate (5). An installation cover (10) is slidably connected to the outer side of the guide rods (28). First springs (11) are fixedly connected to the front and rear sides of the inner wall of the installation cover (10). The other ends of the first springs (11) are fixedly connected with a hollow plate (12). Cleaning brushes (13) are fixedly connected to the left and right sides of the top end of the hollow plate (12). An impurity groove (14) is fixedly connected to the inner side of the fixed frame (4). Air blowers (15) are communicated with the front and rear sides of the impurity groove (14). The output end of the air blower (15) is communicated with a hose (16). The other end of the hose (16) is communicated with the installation cover (10). A tightening mechanism (2) is arranged on the outer side of the bottom plate (1). The tightening mechanism (2) is used to adjust the tightness of the conveyor belt (7).

2. The automatic feeding mechanism of a flexible plate printing machine according to claim 1, wherein: The tightening mechanism (2) includes a motor (201). The motor (201) is fixedly connected to the front side of the front fixing plate (3). Grooves (202) are formed on the adjacent sides of the two fixing plates (3). Rotating disks (203) are rotatably connected to the inner sides of the two grooves (202). Fixed rods (204) are fixedly connected to the upper and lower sides of the outer wall of the rotating disks (203). Tightening sleeves (205) are rotatably connected to the outer sides of the two fixed rods (204). The output end of the motor (201) penetrates through the fixing plate (3) and is fixedly connected to the front rotating disk (203).

3. The automatic feeding mechanism of a flexible plate printing machine according to claim 1, wherein: A movable door (20) is arranged on the left side of the impurity groove (14). A hinge (21) is fixedly connected to the outer side of the movable door (20). The movable door (20) is rotatably connected to the impurity groove (14) through the hinge (21).

4. The automatic feeding mechanism of a flexible plate printing machine according to claim 3, characterized in that: A water tank (17) is fixedly connected to the left side of the movable door (20). A water pump (18) is communicated with the top end of the water tank (17). A spray plate (19) is communicated with the top end of the water pump (18).

5. The automatic feeding mechanism of a flexible plate printing machine according to claim 1, wherein: Second springs (22) are fixedly connected to the four surrounding sides of the inner wall bottom of the impurity groove (14). A filter screen (23) is fixedly connected to the other ends of the second springs (22).

6. The automatic feeding mechanism of a flexible plate printing press according to claim 3, characterized in that: A limiting block (24) is fixedly connected to the front side of the left end of the movable door (20). A limiting plate (25) is rotatably connected to the front side of the left side of the limiting block (24). The limiting block (24) is engaged with the limiting plate (25).

7. An automatic feeding mechanism for a flexible plate printing machine according to claim 1, characterized in that: The front and rear sides of the inner wall of the fixed frame (4) are both provided with sliding grooves (29), and sliders (30) are slidably connected to the inner sides of the sliding grooves (29). A brush (31) is rotatably connected between the two adjacent sliders (30).

8. The automatic feeding mechanism of a flexible plate printing press according to claim 1, characterized in that: Positioning blocks (26) are fixedly connected to the peripheries of the outer walls of the bottom plate (1), and positioning holes (27) are provided on the outer sides of the plurality of positioning blocks (26).

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