A static eliminator for printing presses

Abstract

This application discloses an antistatic device for a printing press, belonging to the field of printing technology. It includes a machine casing with two sets of fixing mechanisms at the bottom. An antistatic roller is rotatably connected to the bottom of the casing. A baffle is hinged to one side of the casing above the antistatic roller. A dust removal mechanism is located below the baffle. The dust removal mechanism includes a scraper, which is fixedly installed at the bottom of the baffle. The outer surface of the scraper is covered with a buffer layer, and a pressure sensor is fixedly installed inside the scraper. A drive mechanism is built into one side of the baffle. A dust suction mechanism is installed inside the casing. A controller is fixedly installed on one side of the casing, and the controller is electrically connected to both the pressure sensor and the drive mechanism. This application avoids rigid contact between the scraper and the antistatic roller, improving the protection effect on the conductive layer of the antistatic roller surface, which helps to extend the antistatic effect of the roller and reduce maintenance frequency.

Description

Technical Field

[0001] This application relates to the field of printing technology, and more particularly to an antistatic device for printing presses. Background Technology

[0002] The published patent document CN 220482857 U discloses a printing antistatic device, relating to the field of printing technology. It includes a chassis with a printing device body mounted on its upper surface; a hydraulic rod with its bottom end fixedly connected to the upper surface of the chassis; a horizontal plate fixedly connected to the top end of the hydraulic rod; a mounting bracket fixedly connected to the bottom surface of the horizontal plate; and a motor mounted inside the mounting bracket. This utility model has a reasonable design structure. Through the cooperation of the cleaning frame, auxiliary mechanism, suction pipe, and suction device body, it enables the antistatic roller to clean the dust adsorbed on its surface during the antistatic process, avoiding downtime of the printing equipment. This solves the problem of existing printing antistatic devices where it is inconvenient to clean the dust adsorbed on the surface of the antistatic roller during the antistatic process, which can easily affect subsequent antistatic operations. Furthermore, stopping the machine for cleaning reduces printing efficiency.

[0003] In practical use, the above solution involves scraping dust by rigidly adhering the cleaning frame to the surface of the antistatic roller. Although this can clean the dust adsorbed on the surface of the antistatic roller, long-term friction will wear down the conductive layer on the surface of the antistatic roller, resulting in increased surface resistance and reduced antistatic effect. Utility Model Content

[0004] In view of the shortcomings of the prior art, this application provides a static eliminator for a printing press, which overcomes the deficiencies of the prior art and aims to solve the problems in the prior art.

[0005] To achieve the above objectives, this application provides the following technical solution: a printing press antistatic device, comprising a chassis, two sets of fixing mechanisms arranged at the bottom of the chassis, an antistatic roller rotatably connected to the bottom of the chassis, a baffle hinged above the antistatic roller on one side of the chassis, a dust removal mechanism arranged below the baffle, the dust removal mechanism including a scraper, the scraper being fixedly installed at the bottom end of the baffle, the outer surface of the scraper being covered with a buffer layer, a pressure sensor being fixedly installed inside the scraper, a drive mechanism built into one side of the baffle, a dust suction mechanism arranged inside the chassis, and a controller being fixedly installed on one side of the chassis, the controller being electrically connected to both the pressure sensor and the drive mechanism.

[0006] By adopting the above technical solution, the chassis is installed above the printing press through two sets of fixing mechanisms. The antistatic roller rolls into contact with the printing material to remove static electricity. At the same time, the bottom of the pressure sensor abuts against the antistatic roller, removing dust from its surface during the roller's rotation. The dust inside the chassis is promptly removed by a dust extraction mechanism. The pressure sensor also monitors the pressure between the buffer layer and the antistatic roller in real time. The controller controls the opening and closing of the drive mechanism based on the feedback data from the pressure sensor, precisely adjusting the rotation angle of the baffle within a small range. This reduces the contact pressure between the scraper and the antistatic roller. Furthermore, the buffer layer itself is elastic, absorbing a certain amount of pressure impact from the scraper's contact with the antistatic roller through its elastic deformation. This avoids rigid contact between the scraper and the antistatic roller, improving the protection of the conductive layer on the surface of the antistatic roller, extending its antistatic effect, and reducing maintenance frequency.

[0007] As a preferred technical solution of this application, the driving mechanism includes a stand, which is fixedly installed inside the chassis. Supports are fixedly installed on the opposite surfaces of the stand and the baffle. A rotating block is hinged to the middle of each of the two sets of supports, and a high-precision electric push rod is installed between the two sets of rotating blocks.

[0008] By adopting the above technical solution, the controller accurately controls the extension range of the high-precision electric push rod based on the feedback data of the pressure sensor. The extension of the high-precision electric push rod drives the baffle to rotate around its hinge point with the machine housing, thereby accurately adjusting the distance and contact pressure between the baffle and the antistatic roller, achieving the purpose of flexible connection between the scraper and the controller, and improving the flexibility of the device.

[0009] As a preferred technical solution of this application, a number of micro protrusions are fixedly installed on the bottom of the scraper, and the number of micro protrusions are evenly distributed along the extension direction of the scraper.

[0010] By adopting the above technical solution, dust in the tiny textures on the surface of the antistatic roller can be deeply removed. The material of the micro-protrusions is fluororubber, and the micro-protrusions are micro-protrusions, which improves the cleaning effect on the antistatic roller while effectively reducing friction with the antistatic roller.

[0011] As a preferred technical solution of this application, the dust collection mechanism includes a triangular base support, which is fixedly installed on one side of the chassis. A dust collection box is fixedly installed at the top of the triangular base support. A fan is fixedly installed inside the dust collection box. An exhaust pipe is fixedly installed on one side of the dust collection box. One end of the exhaust pipe passes through a main pipe fixedly installed on one side of the chassis. Several sets of branch pipes are fixedly installed at the bottom of the main pipe. The air inlets of the several sets of branch pipes are all located on the side diagonally above the scraper.

[0012] By adopting the above technical solution, the dust collection box is stably supported by a triangular base. By starting the fan, several sets of branch pipes promptly suck the dust removed by the scraper into the main pipe. The dust then enters the dust collection box through the exhaust pipe, effectively preventing the dust from re-contaminating the printing materials and the antistatic roller, and improving the printing quality.

[0013] As a preferred technical solution of this application, the dust collection box is internally slidably connected with a coarse filter layer and a fine filter layer, the coarse filter layer being located between the exhaust pipe and the fan, and the fine filter layer being located between the coarse filter layer and the fan.

[0014] By adopting the above technical solution, after the dust-containing air enters the dust collection box, it first passes through a coarse filter layer to filter out large dust particles, and then passes through a fine filter layer to further filter out smaller dust particles. The air cleaned by the coarse and fine filter layers is discharged through the ventilation hole at the rear of the dust collection box. The coarse and fine filter layers effectively reduce the impact of dust on the fan, thereby improving the cleanliness of the air exhaust.

[0015] As a preferred technical solution of this application, a locking block is fixedly installed at the top of both the coarse filter layer and the fine filter layer.

[0016] By adopting the above technical solution, when replacing or cleaning the coarse and fine filter layers periodically, simply lift the corresponding card to pull the coarse and fine filter layers out of the dust collection box, thus improving the maintenance efficiency of the coarse and fine filter layers.

[0017] As a preferred technical solution of this application, the fixing mechanism includes a C-shaped frame, a connecting rod is installed between the C-shaped frame and the chassis, threaded rods are threadedly connected to the opposite sides of the two sets of C-shaped frames, and abutments are fixedly installed on the opposite faces of the two sets of threaded rods.

[0018] By adopting the above technical solution, two sets of C-shaped frames are snapped onto the top of the printing press, and then the threaded rod is rotated to make the abutment block make close contact with the printing press, which improves the loading and unloading efficiency and the stability of the device after installation.

[0019] As a preferred technical solution of this application, the buffer layer is specifically made of foamed silicone, and the connecting rod is specifically a hydraulic rod.

[0020] By adopting the above technical solution, the foamed silicone buffer layer can undergo elastic deformation, thereby absorbing part of the impact force when the scraper comes into contact with the antistatic roller. The height of this device can be adjusted by the connecting rod, so that the antistatic roller can be used for printing materials of different thicknesses.

[0021] The beneficial effects of this application are: 1. The machine casing is mounted above the printing press using two sets of fixing mechanisms. The antistatic roller rolls into contact with the printing material to remove static electricity. Simultaneously, the bottom of the pressure sensor contacts the antistatic roller, removing surface dust as the roller rotates. A dust extraction mechanism promptly removes dust from the machine casing. The pressure sensor also monitors the pressure between the buffer layer and the antistatic roller in real time. Based on the feedback data from the pressure sensor, the controller controls the opening and closing of the drive mechanism, precisely adjusting the rotation angle of the baffle within a small range. This reduces the contact pressure between the scraper and the antistatic roller. Furthermore, the buffer layer itself is elastic, absorbing some of the pressure impact from the scraper's contact with the antistatic roller through its elastic deformation. This prevents rigid contact between the scraper and the antistatic roller, improving the protection of the conductive layer on the surface of the antistatic roller, extending its antistatic effect, and reducing maintenance frequency.

[0022] 2. The controller precisely controls the extension and retraction range of the high-precision electric push rod based on the feedback data from the pressure sensor. The extension of the high-precision electric push rod drives the baffle to rotate around its hinge point with the machine housing, thereby precisely adjusting the distance and contact pressure between the baffle and the antistatic roller. This achieves the purpose of flexible connection between the scraper and the controller, improving the flexibility of the device. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this application; Figure 2 This is a schematic diagram of the internal structure of the chassis; Figure 3 This is a schematic diagram of the drive mechanism structure; Figure 4 for Figure 2 Enlarged structural diagram at point A in the middle; Figure 5 This is a schematic diagram of the vacuuming mechanism.

[0024] In the diagram: 1. Chassis; 2. Fixing mechanism; 201. C-frame; 202. Threaded rod; 203. Abutment block; 3. Antistatic roller; 4. Baffle; 5. Dust removal mechanism; 501. Scraper; 502. Buffer layer; 503. Pressure sensor; 6. Controller; 7. Drive mechanism; 701. Stand; 702. Support; 703. Rotating block; 704. High-precision electric push rod; 8. Dust collection mechanism; 801. Triangular base support; 802. Dust collection box; 803. Fan; 804. Exhaust duct; 805. Main pipe; 806. Branch pipe; 9. Miniature protrusions; 10. Coarse filter layer; 11. Fine filter layer; 12. Clamping block; 13. Connecting rod. Detailed Implementation

[0025] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0026] Reference Figure 1-5 An antistatic device for a printing press includes a housing 1. Two sets of fixing mechanisms 2 are arranged at the bottom of the housing 1. An antistatic roller 3 is rotatably connected to the bottom of the housing 1. A baffle 4 is hinged above the antistatic roller 3 on one side of the housing 1. A dust removal mechanism 5 is arranged below the baffle 4. The dust removal mechanism 5 includes a scraper 501, which is fixedly installed at the bottom of the baffle 4. The outer surface of the scraper 501 is covered with a buffer layer 502. A pressure sensor 503 is fixedly installed inside the scraper 501. A drive mechanism 7 is built into one side of the baffle 4. A dust suction mechanism 8 is arranged inside the housing 1. A controller 6 is fixedly installed on one side of the housing 1. The controller 6 is electrically connected to the pressure sensor 503 and the drive mechanism 7. Several sets of micro protrusions 9 are fixedly installed at the bottom of the scraper 501, and the several sets of micro protrusions 9 are evenly distributed along the extension direction of the scraper 501.

[0027] The machine casing 1 is mounted above the printing press via two sets of fixing mechanisms 2. The antistatic roller 3 rolls in contact with the printing material to remove static electricity. Simultaneously, the bottom of the pressure sensor 503 abuts against the antistatic roller 3, removing surface dust as the roller 3 rotates. The dust is promptly removed from the machine casing 1 by the dust extraction mechanism 8. The pressure sensor 503 also monitors the pressure between the buffer layer 502 and the antistatic roller 3 in real time. The controller 6 controls the opening and closing of the drive mechanism 7 based on the feedback data from the pressure sensor 503, precisely adjusting the rotation angle of the baffle 4 within a small range to reduce the static electricity between the scraper 501 and the antistatic roller 3. The contact pressure of the electrostatic roller 3, and the elasticity of the buffer layer 502 itself, can absorb a certain amount of pressure impact when the scraper 501 contacts the electrostatic roller 3 through its own elastic deformation, thereby avoiding rigid contact between the scraper 501 and the electrostatic roller 3, improving the protection effect on the conductive layer on the surface of the electrostatic roller 3, which is conducive to extending the electrostatic removal time of the electrostatic roller 3 and reducing the number of maintenance times; by deeply removing dust from the tiny textures on the surface of the electrostatic roller 3, the material of the micro-protrusions 9 is fluororubber, and the micro-protrusions 9 are micro-protrusions, which improves the cleaning effect of the electrostatic roller 3 while effectively reducing friction with the electrostatic roller 3.

[0028] Reference Figure 3-5The drive mechanism 7 includes a stand 701, which is fixedly installed inside the housing 1. Supports 702 are fixedly installed on the opposite sides of the stand 701 and the baffle 4. Rotating blocks 703 are hinged in the middle of the two sets of supports 702. A high-precision electric push rod 704 is installed between the two sets of rotating blocks 703. The dust collection mechanism 8 includes a triangular base support 801, which is fixedly installed on one side of the housing 1. A dust collection box 802 is fixedly installed at the top of the triangular base support 801. A fan 803 is fixedly installed inside the dust collection box 802. An exhaust pipe 804 is fixedly installed on one side of the dust collection box 802. One end of the exhaust pipe 804 passes through the housing 1 and a main pipe 805 is fixedly installed on one side. Several sets of branch pipes 806 are fixedly installed at the bottom of the main pipe 805. The air inlets of the several sets of branch pipes 806 are all located on the side diagonally above the scraper 501. The controller 6 precisely controls the extension and retraction range of the high-precision electric push rod 704 based on the feedback data from the pressure sensor 503. The extension of the high-precision electric push rod 704 drives the baffle 4 to rotate around its hinge point with the machine housing 1, thereby precisely adjusting the distance and contact pressure between the baffle 4 and the antistatic roller 3, achieving the purpose of flexible connection between the scraper 501 and the controller 6, and improving the flexibility of the device. The dust collection box 802 is stably supported by the triangular base support 801. By starting the fan 803, several sets of branch pipes 806 promptly suck the dust removed by the scraper 501 into the main pipe 805. The dust then enters the dust collection box 802 through the exhaust pipe 804, effectively preventing the dust from re-contaminating the printing materials and the antistatic roller 3, and improving the printing quality.

[0029] Reference Figure 2-4 The dust collection box 802 has a coarse filter layer 10 and a fine filter layer 11 slidably connected inside. The coarse filter layer 10 is located between the exhaust pipe 804 and the fan 803, and the fine filter layer 11 is located between the coarse filter layer 10 and the fan 803. The fixing mechanism 2 includes a C-shaped frame 201. A connecting rod 13 is installed between the C-shaped frame 201 and the casing 1. Threaded rods 202 are threadedly connected to the opposite sides of the two sets of C-shaped frames 201. Abutments 203 are fixedly installed on the opposite surfaces of the two sets of threaded rods 202. After the dust-laden air enters the dust collection box 802, it first passes through the coarse filter. Layer 10 filters large dust particles, and then the fine filter layer 11 further filters out smaller dust particles. The air cleaned by the coarse filter layer 10 and the fine filter layer 11 is discharged through the ventilation hole at the tail of the dust collection box 802. The coarse filter layer 10 and the fine filter layer 11 effectively reduce the impact of dust on the fan 803, thereby improving the cleanliness of the air exhaust. Two sets of C-shaped frames 201 are snapped onto the top of the printing press, and then the threaded rod 202 is rotated to make the stop block 203 make tight contact with the printing press, which improves the loading and unloading efficiency and the stability of the device after installation.

[0030] Reference Figure 2-4Both the top of the coarse filter layer 10 and the fine filter layer 11 are fixedly equipped with locking blocks 12; the buffer layer 502 is made of foamed silicone, and the connecting rod 13 is a hydraulic rod; when the coarse filter layer 10 and the fine filter layer 11 are replaced or cleaned regularly, simply lift the corresponding locking block 12 to pull the coarse filter layer 10 and the fine filter layer 11 out of the dust collection box 802, which improves the maintenance efficiency of the coarse filter layer 10 and the fine filter layer 11; the foamed silicone buffer layer 502 can undergo elastic deformation, thereby absorbing part of the impact force when the scraper 501 comes into contact with the antistatic roller 3, and the height of the device can be adjusted by the connecting rod 13, so that the antistatic roller 3 can be used for printing materials of different thicknesses.

[0031] Working Principle: The machine housing 1 is mounted above the printing press via two sets of fixing mechanisms 2. The antistatic roller 3 rolls in contact with the printing material to remove static electricity. Simultaneously, the bottom of the pressure sensor 503 abuts against the antistatic roller 3, removing surface dust as the roller rotates. The dust is promptly removed from the machine housing 1 by the dust extraction mechanism 8. The pressure sensor 503 also monitors the pressure between the buffer layer 502 and the antistatic roller 3 in real time. The controller 6 controls the opening and closing of the drive mechanism 7 based on the feedback data from the pressure sensor 503, precisely adjusting the rotation angle of the baffle 4 within a small range to reduce the contact pressure between the scraper 501 and the antistatic roller 3. Furthermore, the buffer layer 502 itself has… The elasticity allows the scraper 501 to absorb a certain amount of pressure and impact when it comes into contact with the antistatic roller 3 through its own elastic deformation, thereby avoiding rigid contact between the scraper 501 and the antistatic roller 3. This improves the protection of the conductive layer on the surface of the antistatic roller 3, helps to extend the antistatic time of the antistatic roller 3, and reduces the number of maintenance times. The controller 6 precisely controls the extension range of the high-precision electric push rod 704 based on the feedback data from the pressure sensor 503. The extension of the high-precision electric push rod 704 drives the baffle 4 to rotate around its hinge point with the housing 1, thereby precisely adjusting the distance and contact pressure between the baffle 4 and the antistatic roller 3. This achieves the purpose of flexible connection between the scraper 501 and the controller 6, improving the flexibility of the device. The dust removal process effectively removes dust from the tiny textures on the surface of the antistatic roller 3. The micro-protrusions 9 are made of fluororubber and are micro-protrusions, which improves the cleaning effect on the antistatic roller 3 while effectively reducing friction with it. The dust collection box 802 is stably supported by the triangular base support 801. By starting the fan 803, several sets of branch pipes 806 promptly suck the dust removed by the scraper 501 into the main pipe 805. The dust then enters the dust collection box 802 through the exhaust pipe 804, effectively preventing the dust from re-contaminating the printing materials and the antistatic roller 3, and improving the printing quality. Meanwhile, after the dust-laden air enters the dust collection box 802, it first passes through the coarse filter layer 10 to filter out large dust particles, and then passes through the fine filter layer 11 to further filter out smaller dust particles. The air cleaned by the coarse filter layer 10 and the fine filter layer 11 is discharged through the ventilation hole at the rear of the dust collection box 802. The coarse filter layer 10 and the fine filter layer 11 effectively reduce the impact of dust on the fan 803, thereby improving the cleanliness of the air exhaust. When the coarse filter layer 10 and the fine filter layer 11 are replaced or cleaned regularly, it is only necessary to lift the corresponding locking block 12 to pull the coarse filter layer 10 and the fine filter layer 11 out of the dust collection box 802, which improves the maintenance efficiency of the coarse filter layer 10 and the fine filter layer 11. In addition, by attaching two sets of C-frames 201 to the top of the printing press and then rotating the threaded rod 202 to make the stop block 203 make tight contact with the printing press, the loading and unloading efficiency and the stability after installation of this device are improved. The foamed silicone buffer layer 502 can undergo elastic deformation, thereby absorbing part of the impact force when the scraper 501 comes into contact with the antistatic roller 3. The height of this device can be adjusted by the connecting rod 13, so that the antistatic roller 3 can be used for printing materials of different thicknesses.

[0032] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Although this application 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 make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A static eliminator for a printing press, comprising a chassis (1), characterized in that, Two sets of fixing mechanisms (2) are provided below the chassis (1). An antistatic roller (3) is rotatably connected to the bottom of the chassis (1). A baffle (4) is hinged above the antistatic roller (3) on one side of the chassis (1). A dust removal mechanism (5) is provided below the baffle (4). The dust removal mechanism (5) includes a scraper (501). The scraper (501) is fixedly installed at the bottom of the baffle (4). The outer surface of the scraper (501) is covered with a buffer layer (502). A pressure sensor (503) is fixedly installed inside the scraper (501). A drive mechanism (7) is built into one side of the baffle (4). A dust suction mechanism (8) is provided inside the chassis (1). A controller (6) is fixedly installed on one side of the chassis (1). The controller (6) is electrically connected to the pressure sensor (503) and the drive mechanism (7).

2. The static eliminator for a printing press according to claim 1, characterized in that, The drive mechanism (7) includes a stand (701), which is fixedly installed inside the chassis (1). Supports (702) are fixedly installed on the opposite surfaces of the stand (701) and the baffle (4). Rotating blocks (703) are hinged to the middle of the two sets of supports (702). A high-precision electric push rod (704) is installed between the two sets of rotating blocks (703).

3. The static eliminator for a printing press according to claim 1, characterized in that, The bottom of the scraper (501) is fixedly equipped with several sets of micro protrusions (9), and the several sets of micro protrusions (9) are evenly distributed along the extension direction of the scraper (501).

4. The static eliminator for a printing press according to claim 1, characterized in that, The dust collection mechanism (8) includes a triangular base support (801), which is fixedly installed on one side of the chassis (1). A dust collection box (802) is fixedly installed at the top of the triangular base support (801). A fan (803) is fixedly installed inside the dust collection box (802). An exhaust pipe (804) is fixedly installed on one side of the dust collection box (802). One end of the exhaust pipe (804) passes through one side of the chassis (1) and a main pipe (805) is fixedly installed. Several sets of branch pipes (806) are fixedly installed at the bottom of the main pipe (805). The air inlets of the several sets of branch pipes (806) are all located on the side diagonally above the scraper (501).

5. The antistatic device for a printing press according to claim 4, characterized in that, The dust collection box (802) has a coarse filter layer (10) and a fine filter layer (11) slidably connected inside. The coarse filter layer (10) is located between the exhaust pipe (804) and the fan (803), and the fine filter layer (11) is located between the coarse filter layer (10) and the fan (803).

6. The static eliminator for a printing press according to claim 5, characterized in that, Both the top of the coarse filter layer (10) and the fine filter layer (11) are fixedly installed with a locking block (12).

7. The static eliminator for a printing press according to claim 1, characterized in that, The fixing mechanism (2) includes a C-shaped frame (201), and a connecting rod (13) is installed between the C-shaped frame (201) and the chassis (1). The two sets of C-shaped frames (201) are threadedly connected to threaded rods (202) on opposite sides, and abutments (203) are fixedly installed on opposite sides of the two sets of threaded rods (202).

8. The static eliminator for a printing press according to claim 7, characterized in that, The buffer layer (502) is made of foamed silicone, and the connecting rod (13) is a hydraulic rod.

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