Automatic cleaning device for blanket cylinder

Abstract

The utility model relates to the field of printing machine machinery, in particular to an automatic rubber cylinder cleaning device which comprises two rubber cylinders and two pairs of supporting frames, each pair of supporting frames is fixedly connected with an inner cavity of a printing machine shell, and a cleaning mechanism is arranged on one side of each rubber cylinder. Each cleaning mechanism comprises a supporting plate which is in sliding connection with the surfaces, close to each other, of the pair of supporting frames, a winding shaft and an unwinding shaft are rotationally connected between the two supporting plates, the unwinding shaft is wound with coiled cleaning cloth, one end of the cleaning cloth unwinding is fixedly wound on the winding shaft, the unwinding shaft is located on the side, close to the blanket cylinder, of the winding shaft, and the winding shaft is located on the other side of the unwinding shaft. Wherein one supporting plate is provided with a driving mechanism for driving the winding shaft to rotate, each end of the unwinding shaft is rotationally connected with the corresponding supporting plate in a damping mode, and the supporting frame is provided with a control mechanism for driving the cleaning mechanism to move in the direction close to the blanket cylinder. The rubber cylinder cleaning device has the effect of reducing the oil shedding condition of the cleaned rubber cylinder during subsequent work.

Description

Technical Field

[0001] The present application relates to the field of printing press machinery, and in particular to an automatic cleaning device for a rubber cylinder. Background Art

[0002] The rubber cylinder, also known as the rubber roller, is a transfer cylinder used to transfer the ink of the printing plate image to the substrate in indirect printing. Its surface is wrapped with a rubber cloth. This design enables the rubber cylinder to effectively transfer ink during the printing process, while also compensating for the comprehensive error of the machine during the printing process to ensure the clarity and quality of the printed product.

[0003] The rubber cylinder cleaning device in the related art is located inside the housing of the printing machine, and generally includes a brush mechanism located on one side of the rubber cylinder, the brush mechanism includes a brush and a water spraying member for spraying water on the brush, and also includes a driving mechanism for pushing the brush mechanism to move in a direction close to the rubber cylinder so as to release the rubber cylinder. When cleaning the rubber cylinder, the brush mechanism is driven by the driving mechanism to move in a direction close to the rubber cylinder until the brush releases the side of the cylinder, and the water spraying member is used to spray water on the brush. At this time, the rubber cylinder is adjusted to rotate, and the brush can clean the rubber cylinder.

[0004] However, after the rubber cylinder is cleaned by the water-spraying brush, a lot of water is retained on the surface of the rubber cylinder, and oil is easily thrown off when the rubber cylinder is used for subsequent printing. Utility Model Content

[0005] In order to reduce the occurrence of oil throwing off of the rubber roller after cleaning during subsequent work, the present application provides an automatic cleaning device for the rubber roller.

[0006] The present application provides an automatic cleaning device for a rubber roller, which adopts the following technical solution:

[0007] A rubber roller automatic cleaning device comprises two rubber rollers and two pairs of support frames, each pair of support frames is fixedly connected to the inner cavity of a printing press housing, a cleaning mechanism is provided on one side of each rubber roller, a pair of support frames corresponds to one cleaning mechanism, each cleaning mechanism comprises a support plate which is slidably connected to one side of a pair of support frames which are close to each other, a winding shaft and an unwinding shaft are rotatably connected between the two support plates, a rolled cleaning cloth is wound on the unwinding shaft, one end of the cleaning cloth unrolled is fixedly wound on the winding shaft, the unwinding shaft is located on the side of the winding shaft close to the rubber roller, a driving mechanism for driving the winding shaft to rotate is installed on one of the support plates, each end of the unwinding shaft is connected to the corresponding support plate for damping rotation, and a control mechanism for driving the cleaning mechanism to move in a direction close to the rubber roller until the cleaning cloth contacts the rubber roller is installed on the support frame.

[0008] By adopting the above technical solution, when it is necessary to clean the rubber roller, each cleaning mechanism is driven by the control mechanism to move in the direction close to the corresponding rubber roller until the outer wall of the cleaning cloth is close to the rubber roller, and then the rubber roller is adjusted to rotate. The rubber roller rotates relative to the cleaning cloth so that the cleaning cloth cleans the surface of the rubber roller. The timing start driving mechanism drives the reel to reel the cleaning cloth for a certain length. When the reel reels the cleaning cloth, it pulls the reel to unwind the cleaning cloth for a certain length, so as to ensure that the clean section of the cleaning cloth can wipe and clean the rubber roller. The rubber roller is cleaned by wiping the cleaning cloth, which is convenient for cleaning the rubber roller and reduces the occurrence of oil throwing when the cleaned rubber roller is performing subsequent work.

[0009] Preferably, a receiving frame is fixedly connected between each pair of the support plates, the receiving frame is located on the side of the unwinding shaft close to the rubber roller, and a rubber layer is fixedly connected to the side of the receiving frame close to the rubber roller, and one end of the cleaning cloth that is unwound is first wrapped around the receiving frame and then wound and fixed on the winding shaft.

[0010] By adopting the above technical solution, when the cleaning mechanism moves toward the rubber roller, the cleaning cloth that has passed through the receiving frame contacts the rubber roller. One side of this section of the cleaning cloth contacts the rubber roller, and the other side contacts the rubber layer, so that the cleaning cloth can better fit the rubber roller. When the rubber roller rotates, it is not easy to drive this section of the cleaning cloth to move, thereby affecting the unwinding of the unwinding shaft.

[0011] Preferably, a water spray pipe is provided below the receiving frame, the water spray pipe is fixedly connected between a pair of the supporting plates, a plurality of water spray holes are opened on the side wall of the water spray pipe, and one end of the cleaning cloth unwinding roll is wound around the supporting frame and the water spray pipe at the same time.

[0012] By adopting the above technical solution, the cleaning cloth in contact with the receiving frame is sprayed with cleaning liquid intermittently through the water spray pipe, and the wet cleaning cloth can clean the rubber roller well. When the reel reels the cleaning cloth and pulls the cleaning cloth to unwind, another section of dry cleaning cloth contacts the receiving frame, and the water spray pipe is controlled to spray the cleaning liquid on this section of dry cleaning cloth. The wet cleaning cloth directly wipes the rubber roller, and it is not easy to leave a lot of water on the surface of the rubber roller, so it is not easy to cause oil throwing.

[0013] Preferably, the control mechanism comprises a driving cylinder fixedly connected to each support frame, one driving cylinder corresponds to one support plate, and a piston rod of each driving cylinder is fixedly connected to the support plate.

[0014] By adopting the above technical solution, two driving cylinders on a pair of support frames are started at the same time, and the extension and retraction of the driving cylinder piston rods can drive the cleaning mechanism to move toward or away from the rubber cylinder.

[0015] Preferably, a support shaft is fixedly connected between each pair of support plates, and each end of the support shaft passes through the support plate and is fixedly connected to the piston rod of the corresponding driving cylinder.

[0016] By adopting the above technical solution, a pair of piston rods of the driving cylinders drive the support shaft to rotate and thus drive the two support plates to move, thereby adjusting the position of the cleaning mechanism. The support shaft is fixedly connected between the two support plates, so that the connection between the two support plates is more stable.

[0017] Preferably, one side of each pair of support plates close to each other is rotatably connected to a winding rotating base, and each end of the winding shaft is detachably connected to a corresponding winding rotating base via a fastener. One side of each pair of support plates close to each other is damped rotationally connected to an unwinding rotating base, and each end of the unwinding shaft is detachably connected to a corresponding unwinding rotating base via a fastener.

[0018] By adopting the above technical solution, the winding shaft and the winding rotating bases at both ends can be disassembled to replace a new winding shaft, and the unwinding shaft and the unwinding rotating bases at both ends can be disassembled to replace a new unwinding shaft wrapped with a cleaning cloth.

[0019] Preferably, each pair of support plates has a side facing away from each other fixedly connected to a sliding rod, and each pair of support frames has a side facing each other close to each other provided with a sliding groove, one sliding rod corresponds to one sliding groove, and one end of the sliding rod is slidably connected to the sliding groove.

[0020] By adopting the above technical solution, when the control mechanism drives the cleaning mechanism to move toward or away from the rubber cylinder, each sliding rod moves along the sliding groove, and the arrangement of the sliding rod and the sliding groove provides a guide for the movement of the cleaning mechanism.

[0021] Preferably, one end of each sliding rod close to the support frame is rotatably connected to a roller, and each roller is rollingly engaged with a corresponding sliding groove.

[0022] By adopting the above technical solution, when the cleaning mechanism moves, each roller rolls along the corresponding sliding groove, which facilitates the sliding rod to move along the sliding groove more smoothly.

[0023] Preferably, a reinforcement rod is fixedly connected between each pair of support plates.

[0024] By adopting the above technical solution, the provision of the reinforcement rod further strengthens the connection between the two support plates, thereby maintaining the stability of the installation of the cleaning mechanism.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. Reduce the occurrence of oil throwing on the rubber roller after cleaning during subsequent work;

[0027] 2. Wipe the rubber roller directly with a damp cleaning cloth to clean it. It is not easy to leave a lot of water on the surface of the rubber roller, so it is not easy to cause oil throwing;

[0028] 3. The arrangement of the sliding rod and the sliding groove provides a guide for the movement of the cleaning mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the cleaning device embodied in an embodiment of the present application.

[0030] Figure 2 It is a structural schematic diagram of a cleaning mechanism according to an embodiment of the present application.

[0031] Figure 3 It is a manifestation Figure 2 Enlarged view of point A in the middle.

[0032] Figure 4 It is a schematic diagram of the structure of the sliding rod and the roller according to an embodiment of the present application.

[0033] Explanation of the reference numerals in the accompanying drawings: 1. rubber roller; 2. support frame; 21. sliding groove; 3. cleaning mechanism; 31. support plate; 32. winding shaft; 321. winding rotating base; 33. unwinding shaft; 331. unwinding rotating base; 34. cleaning cloth; 35. receiving frame; 36. rubber layer; 37. water spray pipe; 38. support shaft; 39. reinforcement rod; 4. control mechanism; 41. driving cylinder; 5. sliding rod; 51. roller. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-Figure 4 This application is described in further detail.

[0035] The present application embodiment discloses an automatic cleaning device for a rubber roller. Figure 1 and Figure 2 The cleaning device includes two rubber cylinders 1 and two pairs of support frames 2. Each pair of support frames 2 is fixedly connected to the inner cavity of the printing press housing, and a cleaning mechanism 3 is provided on one side of each rubber cylinder 1, so that the two rubber cylinders 1 can be cleaned at the same time, thereby improving the cleaning efficiency. A pair of support frames 2 corresponds to a cleaning mechanism 3, and a pair of support frames 2 provides support for the cleaning mechanism 3.

[0036] Each cleaning mechanism 3 includes a pair of support plates 31, one support plate 31 corresponds to one support frame 2, one support plate 31 is located between the pair of support frames 2, and the support plate 31 is slidably connected to the support frame 2. A reeling shaft 32 and an unreeling shaft 33 are rotatably connected between the two support plates 31.

[0037] A rolled cleaning cloth 34 is wound around the unwinding shaft 33. The cleaning cloth 34 is a non-woven fabric. One end of the unwinding cleaning cloth 34 is fixedly wound around the reeling shaft 32. The unwinding shaft 33 is located on the side of the reeling shaft 32 close to the rubber cylinder 1. A driving mechanism for driving the reeling shaft 32 to rotate is installed on one of the support plates 31. The rotation of the reeling shaft 32 can be controlled by the driving mechanism, thereby realizing the reeling operation of the cleaning cloth 34. Each end of the unwinding shaft 33 is connected to the corresponding support plate 31 for damping rotation. Such a design can ensure that the unwinding shaft 33 can maintain a stable rotation state when releasing the cleaning cloth 34.

[0038] The support frame 2 is also provided with a control mechanism 4 for driving the cleaning mechanism 3 to move toward or away from the rubber cylinder 1. When the rubber cylinder 1 needs to be cleaned, the cleaning mechanism 3 is driven to move by the control mechanism 4, so that the cleaning cloth 34 is closely attached to the rubber cylinder 1, and then the rotation of the rubber cylinder 1 is adjusted, so that the rubber cylinder 1 can be automatically cleaned.

[0039] In order to facilitate the replacement of the cleaning cloth 34 on the winding shaft 32 and the unwinding shaft 33, the side of each pair of support plates 31 close to each other is also rotatably connected to a winding rotating base 321 and an unwinding rotating base 331. The winding rotating base 321 is detachably connected to each end of the winding shaft 32 by screws, and the unwinding rotating base 331 is detachably connected to each end of the unwinding shaft 33 by screws. This detachable design allows for convenient and quick replacement of the cleaning cloth 34 when it is used up or needs to be replaced. The driving mechanism can be a motor, a motor, etc. that drives one of the winding rotating bases 321 to rotate.

[0040] Reference Figure 2 and Figure 3 A receiving frame 35 is fixedly connected between each pair of support plates 31, and the receiving frame 35 is located on the side of the unwinding shaft 33 close to the rubber cylinder 1. The setting of the receiving frame 35 plays a transitional role, so that the cleaning cloth 34 can pass through the receiving frame 35 and then be wound on the reeling shaft 32 after being unwound from the unwinding shaft 33. A rubber layer 36 is also fixedly connected to the side of the receiving frame 35 close to the rubber cylinder 1, so that the cleaning cloth 34 can better fit the surface of the rubber cylinder 1 when it contacts the rubber cylinder 1, thereby improving the cleaning effect.

[0041] Reference Figure 1 , Figure 2 and Figure 3A water spray pipe 37 is also provided below the receiving frame 35. The water spray pipe 37 is fixedly connected between a pair of support plates 31, and a plurality of water spray holes are provided on the side wall of the water spray pipe 37. One end of the water spray pipe 37 extends and is connected to a water tank. Cleaning liquid is pumped into the water spray pipe 37 to spray the cleaning liquid. The cleaning cloth 34 will pass through the receiving frame 35 and the water spray pipe 37 at the same time during the unwinding process. The cleaning cloth 34 in contact with this section of the receiving frame 35 can be sprayed with cleaning liquid intermittently through the water spray pipe 37. The wet cleaning cloth 34 can clean the rubber cylinder 1 more effectively. When the reel 32 rewinds the cleaning cloth 34 and pulls the new cleaning cloth 34 to unwind, the water spray pipe 37 will spray the cleaning liquid on the newly unwound cleaning cloth 34 again, ensuring that the wet cleaning cloth 34 can be used for each cleaning.

[0042] The control mechanism 4 includes a driving cylinder 41 fixedly connected to each support frame 2, and one driving cylinder 41 corresponds to one support plate 31. The piston rod of each driving cylinder 41 is fixedly connected to the corresponding support plate 31. When the position of the cleaning mechanism 3 needs to be adjusted, it is only necessary to start the two driving cylinders 41 on a pair of support frames 2 at the same time, and the entire cleaning mechanism 3 can be driven to move toward or away from the rubber cylinder 1 by extending and retracting the piston rods of the driving cylinders 41.

[0043] In order to further enhance the structural stability between the support plates 31 and provide a better support point for the piston rod of the driving cylinder 41, a support shaft 38 is fixedly connected between each pair of support plates 31. Each end of the support shaft 38 penetrates the corresponding support plate 31 and is fixedly connected to the piston rod of the corresponding driving cylinder 41. In this way, the two support plates 31 can always maintain a relatively stable positional relationship during the movement, thereby ensuring that the cleaning mechanism 3 can be moved to the predetermined position smoothly and accurately. A reinforcement rod 39 is also fixedly connected between each pair of support plates 31.

[0044] Reference Figure 1 and Figure 4 , the side of each pair of support plates 31 facing away from each other is fixedly connected with a sliding rod 5. At the same time, the side of each pair of support frames 2 close to each other is provided with a sliding groove 21, one sliding rod 5 corresponds to one sliding groove 21, and one end of each sliding rod 5 close to the support frame 2 is rotatably connected to a roller 51. The roller 51 forms a rolling fit with the corresponding sliding groove 21.

[0045] When the control mechanism 4 drives the cleaning mechanism 3 to move, the roller 51 will roll along the sliding groove 21. This structural design provides a clear guide for the movement of the cleaning mechanism 3, ensuring that it can move stably along the predetermined path, thereby further improving the reliability and stability of the entire device. Compared with direct sliding friction, rolling friction has less resistance, so this design can significantly reduce the wear between the sliding rod 5 and the sliding groove 21 and extend its service life. The rolling fit also makes the movement of the cleaning mechanism 3 smoother, improving the response speed and operational flexibility of the entire device.

[0046] The implementation principle of the automatic cleaning device for a rubber cylinder in the embodiment of the present application is as follows: when it is necessary to clean the rubber cylinder 1, each driving cylinder 41 is started at the same time, and each cleaning mechanism moves toward the direction close to the corresponding rubber cylinder 1 under the drive of the driving cylinder 41, and at the same time, the water spray pipe 37 sprays the cleaning liquid on the cleaning cloth 34 passing through the receiving frame 35. When the cleaning cloth passing through each rubber pad contacts the corresponding rubber cylinder 1, each rubber cylinder 1 is adjusted to rotate, and the cleaning cloth 34 can clean the rubber cylinder 1 at this time.

[0047] When the rubber cylinder 1 rotates for about 3 seconds, the driving mechanism is started to drive the reel 32 to rotate, thereby pulling the cleaning cloth 34 to unwind, so as to ensure that the clean section of the cleaning cloth 34 can wipe and clean the rubber cylinder 1.

[0048] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An automatic cleaning device for a rubber cylinder, characterized in that: The invention comprises two rubber rollers (1) and two pairs of support frames (2), each pair of support frames (2) being fixedly connected to the inner cavity of a printing machine housing, a cleaning mechanism (3) being provided on one side of each rubber roller (1), one pair of support frames (2) corresponding to one cleaning mechanism (3), each cleaning mechanism (3) comprising a support plate (31) slidably connected to one side of the pair of support frames (2) close to each other, a winding shaft (32) and an unwinding shaft (33) being rotatably connected between the two support plates (31), a rolled cleaning cloth (34) being wound on the unwinding shaft (33), One unwinding end of the cleaning cloth (34) is fixedly wound on the reel (32); the unwinding shaft (33) is located on a side of the reel (32) close to the rubber roller (1); a driving mechanism for driving the reel (32) to rotate is installed on one of the support plates (31); each end of the unwinding shaft (33) is connected to the corresponding support plate (31) for damping rotation; and a control mechanism (4) for driving the cleaning mechanism (3) to move in a direction close to the rubber roller (1) until the cleaning cloth (34) contacts the rubber roller (1) is installed on the support frame (2).

2. The automatic cleaning device for a rubber cylinder according to claim 1, characterized in that: A receiving frame (35) is fixedly connected between each pair of the support plates (31), the receiving frame (35) is located on a side of the unwinding shaft (33) close to the rubber roller (1), and a rubber layer (36) is fixedly connected to a side of the receiving frame (35) close to the rubber roller (1), and an unwinding end of the cleaning cloth (34) is first wound around the receiving frame (35) and then wound and fixed on the rewinding shaft (32).

3. The automatic cleaning device for a rubber cylinder according to claim 2, characterized in that: A water spray pipe (37) is provided below the receiving frame (35), and the water spray pipe (37) is fixedly connected between the pair of support plates (31). A plurality of water spray holes are provided on the side wall of the water spray pipe (37), and the unwinding end of the cleaning cloth (34) is wound around the support frame (2) and the water spray pipe (37) at the same time.

4. The automatic cleaning device for a rubber cylinder according to claim 1, characterized in that: The control mechanism (4) comprises a driving cylinder (41) fixedly connected to each support frame (2), one driving cylinder (41) corresponds to one support plate (31), and a piston rod of each driving cylinder (41) is fixedly connected to the support plate (31).

5. The automatic cleaning device for a rubber cylinder according to claim 4, characterized in that: A support shaft (38) is fixedly connected between each pair of support plates (31), and each end of the support shaft (38) passes through the support plate (31) and is fixedly connected to a piston rod of a corresponding driving cylinder (41).

6. The automatic cleaning device for a rubber cylinder according to claim 1, characterized in that: A side surface of each pair of support plates (31) close to each other is rotatably connected to a winding rotating base (321), and each end of the winding shaft (32) is detachably connected to a corresponding winding rotating base (321) via a fastener; a side surface of each pair of support plates (31) close to each other is dampedly rotatably connected to an unwinding rotating base (331), and each end of the unwinding shaft (33) is detachably connected to a corresponding unwinding rotating base (331) via a fastener.

7. The automatic cleaning device for a rubber cylinder according to claim 1, characterized in that: A sliding rod (5) is fixedly connected to a side surface of each pair of support plates (31) that faces away from each other, and a sliding groove (21) is provided on a side surface of each pair of support frames (2) that faces each other. One sliding rod (5) corresponds to one sliding groove (21), and one end of the sliding rod (5) is slidably connected to the sliding groove (21).

8. The automatic cleaning device for a rubber cylinder according to claim 7, characterized in that: One end of each sliding rod (5) close to the support frame (2) is rotatably connected to a roller (51), and each roller (51) is rollingly matched with a corresponding sliding groove (21).

9. The automatic cleaning device for a rubber cylinder according to claim 1, characterized in that: A reinforcement rod (39) is fixedly connected between each pair of support plates (31).

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