Electrostatic eliminator for a printing press guide roller

Abstract

The utility model relates to printing machine technical field especially relates to a printing machine paper guide roller static electricity elimination device, including having installation frame, still including base, sleeve, spring, telescopic link, connecting seat, static electricity eliminator, cam, gear wheel, rack, support frame and first electric push rod, and the bottom both ends of installation frame all are installed with base, and the inside bottom end of two bases all are installed with sleeve, and the inside of sleeve is provided with spring, and the top of sleeve inserts telescopic link, and the bottom of telescopic link and the top of spring contact, and the top of telescopic link is installed with connecting seat, the utility model drives rack horizontal shift through the telescopic movement of two first electric push rods, drives gear wheel rotation, makes cam rotate and extrudes static electricity eliminator top, and connecting seat drives telescopic link to slide down and compresses spring, and after cam reset, spring rebound pushes telescopic link to rise, makes static electricity eliminator reset to height adjustment is realized to adapt to the static electricity elimination demand of different paper.

Description

Technical Field

[0001] This utility model relates to the field of printing press technology, and in particular to a static electricity elimination device for the paper guide roller of a printing press. Background Technology

[0002] The static eliminator for the paper guide roller of a printing press is a specialized device used to eliminate static electricity on paper during the printing process. It is mainly used to solve problems such as paper sticking, uneven winding, misregistration, and dust adsorption caused by static electricity. It can significantly improve printing quality and production efficiency and is one of the key auxiliary devices of modern printing presses.

[0003] When using existing static eliminators for printing press guide rollers, the static eliminators are usually fixed in structure and cannot be adjusted in height according to different paper thicknesses, materials and printing speeds. This results in unstable static elimination effects. Especially when producing ultra-thin paper or high-grammage cardboard, the fixed-height eliminators are either too far away, affecting the static elimination efficiency, or too close, causing paper scratches.

[0004] Therefore, in order to address the problem that existing static eliminators for printing press guide rollers are usually fixed in place and cannot be adjusted in height according to different paper materials, resulting in low adaptability, it is urgent to design a new type of static eliminator for printing press guide rollers. Utility Model Content

[0005] To overcome the problem that existing electrostatic eliminators for printing press guide rollers are usually fixed in place and cannot be adjusted in height according to different paper materials, resulting in low adaptability.

[0006] The technical solution of this utility model is as follows: a static elimination device for a printing press guide roller, including an installation frame; it also includes a base, a sleeve, a spring, a telescopic rod, a connecting seat, a static eliminator, a cam, a gear, a rack, a support frame, and a first electric push rod. Bases are installed at both the left and right ends of the bottom of the installation frame. A sleeve is installed at the inner bottom end of each of the two bases. A spring is installed inside the sleeve. A telescopic rod is inserted into the top of the sleeve, with the bottom of the telescopic rod contacting the top of the spring. A connecting seat is installed at the top of the telescopic rod. A static eliminator is installed between the two connecting seats. Five equally spaced cams are rotatably connected to the inner side of the installation frame. Gears are rotatably connected to the front side of the installation frame corresponding to the positions of the cams. Support frames are installed at both the left and right ends of the front side of the installation frame. A first electric push rod is installed on the upper surface of the support frame. A rack is installed between the two first electric push rods, and the rack meshes with the gear.

[0007] Preferably, by setting a first electric push rod, two electric push rods are controlled by an external controller. During operation, the two first electric push rods retract and extend respectively, thereby driving the rack to move laterally. As the rack moves, it drives the gear meshing with it to rotate, thereby driving the cam to rotate. The cam's protrusion will squeeze the top of the static eliminator, causing the connecting seat to drive the telescopic rod to slide down inside the sleeve. The spring will contract under compression. After the cam resets, the spring's rebound force will push the telescopic rod upward, thereby resetting the static eliminator. This achieves position adjustment of the static eliminator, allowing for adjustment of the appropriate working position according to the needs of different papers. This solves the problem that existing printing press guide roller static eliminators are usually fixed in installation and cannot be height adjusted according to different paper materials, resulting in low adaptability.

[0008] Preferably, a guide rail is installed at the top front of the mounting frame, and a slider is installed on the top of the rack, with the slider slidably connected to the guide rail.

[0009] Preferably, a connecting rod is rotatably connected to the rear side of the mounting frame corresponding to the position of the cam on the right side. The front end of the connecting rod passes through the rear side wall of the mounting frame and connects to the cam on the right side. A knob is installed at the rear end of the connecting rod.

[0010] Preferably, a movable component is installed on the front surface of the two bases, and a second electric push rod is provided on the rear side of the movable component. The telescopic end of the second electric push rod is provided with sponge.

[0011] Preferably, the moving component includes a fixed frame, a drive motor, a lead screw, and a moving base; the fixed frame is provided on the front side of the two bases, the drive motor is installed on the right end of the fixed frame, the output end of the drive motor passes through the right side wall of the fixed frame and is connected to one end of the lead screw, the other end of the lead screw is rotatably connected to the left side of the inner surface of the fixed frame, the moving base is threaded through the outer surface of the lead screw, and the front end of the second electric push rod is connected to the rear side of the moving base.

[0012] Preferably, the bottom of the two bases is fitted with a base plate, and positioning holes are provided at the four corners of the top of the base plate.

[0013] Preferably, positioning blocks are installed on both the front and rear surfaces of the connecting base, and positioning grooves are opened on both the front and rear sides of the interior of the two bases, with the positioning blocks and positioning grooves slidably connected.

[0014] The beneficial effects of this utility model are:

[0015] 1. By setting up a first electric push rod, the external controller controls two first electric push rods to perform retraction and ejection movements respectively, driving the rack to move laterally. The rack drives the gear meshing with it to rotate, which in turn drives the cam to rotate. The convex part of the cam presses against the top of the static eliminator, causing the connecting seat to drive the telescopic rod to slide down in the sleeve and compress the spring, thereby realizing the downward pressure of the static eliminator. When the cam returns to its original position, the spring rebounds and pushes the telescopic rod to rise, so that the static eliminator returns to its original position, thereby adjusting its working position according to different paper requirements. Attached Figure Description

[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of a static elimination device for a printing press guide roller according to this utility model.

[0017] Figure 2 The diagram shown is a three-dimensional structural schematic of a cam for an electrostatic elimination device on a paper guide roller of a printing press, according to this utility model.

[0018] Figure 3 The diagram shown is a three-dimensional structural schematic of a moving component of a static elimination device for a paper guide roller of a printing press according to this utility model.

[0019] Figure 4 The diagram shown is a three-dimensional structural schematic of the guide rail of the electrostatic elimination device for the paper guide roller of a printing press according to this utility model.

[0020] Figure 5 The diagram shown is a half-section three-dimensional structural diagram of the base of the electrostatic elimination device for the paper guide roller of a printing press according to this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Mounting frame; 2. Base; 3. Sleeve; 4. Spring; 5. Telescopic rod; 6. Connecting seat; 7. Static eliminator; 8. Cam; 9. Gear; 10. Rack; 11. Support frame; 12. First electric push rod; 13. Guide rail; 14. Slider; 15. Connecting rod; 16. Knob; 171. Fixed frame; 172. Drive motor; 173. Lead screw; 174. Moving seat; 18. Second electric push rod; 19. Sponge; 20. Base plate; 21. Positioning hole; 22. Positioning groove; 23. Positioning block. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please see Figures 1-5This utility model provides an embodiment of an electrostatic elimination device for a printing press guide roller, comprising a mounting frame 1; and further comprising a base 2, a sleeve 3, a spring 4, a telescopic rod 5, a connecting seat 6, an electrostatic eliminator 7, a cam 8, a gear 9, a rack 10, a support frame 11, and a first electric push rod 12. Bases 2 are mounted on both the left and right ends of the bottom of the mounting frame 1, and sleeves 3 are mounted on the inner bottom ends of both bases 2. A spring 4 is installed inside the sleeve 3, and a telescopic rod 5 is inserted into the top of the sleeve 3. The bottom of the telescopic rod 5 contacts the top of the spring 4. A connecting seat 6 is mounted on the top of the telescopic rod 5, and an electrostatic eliminator 7 is disposed between the two connecting seats 6. Five equally spaced cams 8 are rotatably connected to the inner side of the mounting frame 1, and a gear 9 is rotatably connected to the front side of the mounting frame 1 corresponding to the positions of the cams 8. Support frames 11 are installed at both ends. A first electric push rod 12 is installed on the upper surface of the support frame 11. A rack 10 is installed between the two first electric push rods 12. The rack 10 meshes with the gear 9. By setting the first electric push rods 12, the external controller drives the two first electric push rods 12 to move in opposite directions, which will cause the rack 10 to produce a lateral displacement. The gear 9 meshing with the rack 10 will rotate accordingly and drive the cam 8 to rotate. As the cam 8 protrusion rotates to the working position, it will apply downward pressure to the top of the static eliminator 7, causing the connecting seat 6 to drive the telescopic rod 5 to move down along the sleeve 3, while compressing the internal spring 4. When the cam 8 continues to rotate to the return section, the spring 4 releases its elastic force and pushes the telescopic rod 5 back to its original position, thereby realizing the automatic adjustment of the height of the static eliminator 7 to adapt to the static elimination requirements of paper of different thicknesses.

[0024] Please see Figures 2-4 In this embodiment, a guide rail 13 is installed at the top front position of the mounting frame 1, and a slider 14 is installed on the top of the rack 10. The slider 14 is slidably connected to the guide rail 13. By setting the guide rail 13 and the slider 14, the rack 10 can drive the slider 14 to slide in the groove of the guide rail 13 when it moves, thereby improving the stability of the rack 10's movement. A connecting rod 15 is rotatably connected to the rear side of the mounting frame 1, corresponding to the position of the cam 8 on the right side. The front end of the connecting rod 15 passes through the rear side wall of the mounting frame 1 and connects to the cam 8 on the right side. A knob 16 is installed at the rear end of the connecting rod 15. By setting knob 16, the operator can adjust the rotation angle of cam 8 by turning knob 16, providing two driving methods and greater flexibility. The front surface of the two bases 2 is equipped with a moving component, and the rear side of the moving component is equipped with a second electric push rod 18. The telescopic end of the second electric push rod 18 is equipped with a sponge 19. By setting the moving component, the second electric push rod 18 and the sponge 19 can be moved left and right. When working, the second electric push rod 18 can move the sponge 19 back and forth, thereby wiping the working surface of the static eliminator 7 and reducing dust adhesion.

[0025] Please see Figures 3-5In this embodiment, the moving component includes a fixed frame 171, a drive motor 172, a lead screw 173, and a moving base 174. The fixed frame 171 is located on the front side of the two bases 2. The drive motor 172 is mounted on the right end of the fixed frame 171. The output end of the drive motor 172 passes through the right side wall of the fixed frame 171 and is connected to one end of the lead screw 173. The other end of the lead screw 173 is rotatably connected to the left side of the inner surface of the fixed frame 171. The outer surface of the lead screw 173 is threadedly connected to the moving base 174. The front end of the second electric push rod 18 is connected to the rear side of the moving base 174. By setting the drive motor 172, its output end can drive the lead screw 173 to rotate during operation. When the lead screw 173 rotates, it can drive the threaded engagement with the lead screw 173. The movable seat 174 moves left and right, thereby driving the second electric push rod 18 and the sponge 19 to move. The bottom of the two bases 2 is equipped with a base plate 20. The top four corners of the base plate 20 are provided with positioning holes 21. By setting the base plate 20 and the positioning holes 21, the operator can install the device as a whole at the position of the paper guide roller with bolts, which improves the convenience of installation. The front and rear surfaces of the connecting seat 6 are equipped with positioning blocks 23. The front and rear sides of the interior of the two bases 2 are provided with positioning grooves 22. The positioning blocks 23 and the positioning grooves 22 are slidably connected. By setting the positioning blocks 23 and the positioning grooves 22, the connecting seat 6 can drive the positioning blocks 23 to move under the restriction of the positioning grooves 22 when it moves up and down, thereby improving the stability of the movement of the connecting seat 6.

[0026] During operation, the base plate 20 is fixed to the position of the paper guide roller with bolts. Then, the controller controls the two first electric push rods 12 to move in opposite directions, thereby driving the rack 10 to move. The rack 10 and the gear 9 cooperate to drive the cam 8 to rotate. When the cam 8 rotates, it presses down the static eliminator 7. At the same time, the connecting seat 6 drives the telescopic rod 5 to descend, so that the spring 4 in the sleeve 3 is compressed, thereby lowering the height of the static eliminator 7. When it is necessary to raise its height, the rack 10 is moved in the opposite direction. The cam 8 no longer presses down on the static eliminator 7. The rebound force of the spring 4 will push the telescopic rod 5 upward, thereby driving the height of the static eliminator 7 to rise until it contacts the cam 8. After the equipment stops, the drive motor 172 can be started. Through the transmission structure of the lead screw 173, the sponge 19 is driven to move left and right to remove dust from the working surface of the static eliminator 7.

[0027] Through the above steps, by setting the first electric push rod 12, the external controller precisely controls the two first electric push rods 12 to perform complementary movements. This differential movement is converted into rotational movement through the transmission structure of rack 10 and gear 9, driving the cam 8 shaft to rotate precisely. The special design of the cam 8 profile allows it to apply pressure to the static eliminator 7 during rotation. Through the connecting seat 6, the telescopic rod 5 is driven to move linearly within the sleeve 3, while compressing the spring 4. When the cam 8 rotates past the highest point, the restoring force of the spring 4 causes the entire actuator to automatically reset, realizing stepless adjustment of the working height of the static eliminator 7. The optimal working position can be quickly adjusted according to different paper characteristics to ensure the consistency of the static elimination effect. The control system can monitor and automatically adjust the stroke of the first electric push rod 12 in real time, so that the cam 8 stops at any specified phase, thereby precisely controlling the final working position of the static eliminator 7. This solves the problem that the static eliminator 7 of the existing printing press guide roller static elimination device is usually fixedly installed and cannot be adjusted in height according to different paper materials, resulting in low adaptability.

Claims

1. A static eliminator for a printing press guide roller, comprising a mounting frame (1); characterized in that: It also includes a base (2), a sleeve (3), a spring (4), a telescopic rod (5), a connecting seat (6), a static eliminator (7), a cam (8), a gear (9), a rack (10), a support frame (11), and a first electric push rod (12). The bottom left and right ends of the mounting frame (1) are each fitted with a base (2). A sleeve (3) is installed on the inner bottom of each of the two bases (2). A spring (4) is installed inside the sleeve (3). A telescopic rod (5) is inserted into the top of the sleeve (3). The bottom of the telescopic rod (5) contacts the top of the spring (4). (5) is equipped with a connecting seat (6) at the top, and an electrostatic eliminator (7) is provided between the two connecting seats (6). Five equally spaced cams (8) are rotatably connected to the inner side of the mounting frame (1). A gear (9) is rotatably connected to the front side of the mounting frame (1) corresponding to the position of the cams (8). Support frames (11) are installed on both the left and right ends of the front side of the mounting frame (1). A first electric push rod (12) is installed on the upper surface of the support frame (11). A rack (10) is installed between the two first electric push rods (12). The rack (10) meshes with the gear (9).

2. The electrostatic elimination device for the paper guide roller of a printing press according to claim 1, characterized in that: A guide rail (13) is installed at the top front of the mounting frame (1), and a slider (14) is installed at the top of the rack (10). The slider (14) is slidably connected to the guide rail (13).

3. The electrostatic elimination device for the paper guide roller of a printing press according to claim 1, characterized in that: A connecting rod (15) is rotatably connected to the rear side of the mounting frame (1) corresponding to the position of the cam (8) on the right side. The front end of the connecting rod (15) passes through the rear side wall of the mounting frame (1) and is connected to the cam (8) on the right side. A knob (16) is installed at the rear end of the connecting rod (15).

4. The electrostatic elimination device for the paper guide roller of a printing press according to claim 1, characterized in that: The front surfaces of the two bases (2) are equipped with movable components, and the rear side of the movable components is provided with a second electric push rod (18). The telescopic end of the second electric push rod (18) is provided with a sponge (19).

5. The electrostatic elimination device for the paper guide roller of a printing press according to claim 4, characterized in that: The moving assembly includes a fixed frame (171), a drive motor (172), a lead screw (173), and a moving base (174). The fixed frame (171) is provided on the front side of the two bases (2). The drive motor (172) is installed on the right end of the fixed frame (171). The output end of the drive motor (172) passes through the right side wall of the fixed frame (171) and is connected to one end of the lead screw (173). The other end of the lead screw (173) is rotatably connected to the left side of the inner surface of the fixed frame (171). The moving base (174) is threaded through the outer surface of the lead screw (173). The front end of the second electric push rod (18) is connected to the rear side of the moving base (174).

6. The electrostatic elimination device for the paper guide roller of a printing press according to claim 1, characterized in that: The bottom of the two bases (2) is fitted with a base plate (20), and positioning holes (21) are provided at the four corners of the top of the base plate (20).

7. The electrostatic elimination device for the paper guide roller of a printing press according to claim 1, characterized in that: Positioning blocks (23) are installed on both the front and rear surfaces of the connecting seat (6), and positioning grooves (22) are opened on both the front and rear sides of the interior of the two bases (2). The positioning blocks (23) and the positioning grooves (22) are slidably connected.

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