Protection mechanism for printing paper of printing machine

By designing detachable protective and cleaning mechanisms, the problem of difficult-to-remove printing press protective plates was solved, improving dust protection and printing quality.

CN224160109UActive Publication Date: 2026-04-24SHANGHAI SHIGUAN PRINTING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI SHIGUAN PRINTING CO LTD
Filing Date
2025-05-22
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

Existing printing press protective plates are difficult to remove and install easily, leading to dust accumulation, which affects the service life of the equipment and printing quality.

Method used

A protective mechanism is designed, comprising a housing, a fixing plate, a track, an upper baffle, a lower baffle, a sliding rod, a clamping plate, a motor, and a cleaning mechanism. The upper baffle is flexibly installed and removed by driving the rollers and track with the motor, and is equipped with a cleaning roller and a brush for cleaning the paper.

Benefits of technology

It enables convenient installation and removal of the protective plate, improves dust prevention, ensures paper cleanliness, and enhances printing quality and equipment lifespan.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of printing machines, and discloses a printing machine printing paper protection mechanism which comprises a shell, a fixing plate is fixedly connected to the top of the front side of the shell, rails are arranged at the left end and the right end of the front side of the shell, an upper baffle is slidably connected to the tops of the outer walls of the rails, and a lower baffle is arranged at the bottom of the upper baffle. A clamping groove is formed in the middle of the bottom face of the upper baffle, sliding rods are slidably connected to the left end and the right end of the front side of the upper baffle, springs are fixedly connected to the left side and the right side of the inner wall of the upper baffle, clamping plates are fixedly connected to the rear ends of the sliding rods, and L-shaped plates are fixedly connected to the left side and the right side of the top of the lower baffle. According to the utility model, the L-shaped plate is inserted into the clamping groove and pushed to clamp and pull the sliding rod to adjust the height of the upper baffle plate, and the motor is started to rotate the wire wheel, so that the upper baffle plate and the lower baffle plate are mounted or dismounted, cleaning and replacement are facilitated, and the height of the baffle plate can be adjusted to adapt to different paper specifications.
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Description

Technical Field

[0001] This utility model relates to the field of printing press technology, and in particular to a protective mechanism for printing paper in a printing press. Background Technology

[0002] In today's highly competitive printing market, customers have increasingly higher expectations for the quality of printed materials. Any defects, scratches, or damage on the paper surface can lead to blurry prints and color deviations, seriously affecting the overall effect of the printed materials. High-quality printing not only requires precise ink adhesion but also relies on the perfect condition of the paper during the printing process. In the fields of high-end brochures and exquisite packaging printing, even the slightest paper damage is unacceptable. This has prompted printing companies to seek effective paper protection measures to ensure that the printing quality reaches the highest level.

[0003] A search revealed Chinese Patent Publication No. CN221718110U, which discloses a protective box. The protective box houses the printing press body. A cleaning groove is located on the side of the protective box near the input end of the printing press body, and a discharge groove is located on the side away from the cleaning groove. This printing press protective device unlocks the cleaning groove through a sealing structure and the discharge groove through a switching mechanism. One end of the printing paper is passed through a brush and scraper to the conveyor belt outside the conveyor roller. The conveyor belt moves the printing paper, while the brush and scraper clean dust and foreign objects from the surface of the printing paper, preventing dust and foreign objects from entering the printing press body and causing damage. After cleaning, the printing paper is conveyed into the printing press body for printing. A heat dissipation filter plate dissipates heat and blocks dust from the printing press body. The printed paper is discharged through the discharge groove. However, this invention does not consider that if the protective plate cannot be easily disassembled and installed, dust will accumulate on the protective plate and be difficult to remove, thus reducing the dustproof effect of the protective plate and affecting the service life of the equipment. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a protective mechanism for printing paper on a printing press. It aims to improve the problem in the prior art where dust accumulates on the protective plate and is difficult to remove if the protective plate cannot be easily disassembled and installed, thereby reducing the dustproof effect of the protective plate and affecting the service life of the equipment.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a protective mechanism for printing paper on a printing press, comprising a housing, a fixed plate fixedly connected to the top front side of the housing, tracks provided on both the left and right sides of the front side of the housing, an upper baffle slidably connected to the top outer wall of the tracks, a lower baffle provided at the bottom of the upper baffle, a slot provided in the center of the bottom surface of the upper baffle, sliding rods slidably connected to both the left and right front sides of the upper baffle, springs fixedly connected to both the left and right sides of the inner wall of the upper baffle, a locking plate fixedly connected to the rear end of the sliding rod, L-shaped plates fixedly connected to both the left and right top sides of the lower baffle, pull ropes fixedly connected to both the left and right top sides of the upper baffle, a second motor fixedly connected to both the left and right top front sides of the housing, a thread wheel fixedly connected to the output end of the second motor, and a cleaning mechanism provided inside the housing for cleaning the paper.

[0006] Through the above technical solutions: the fixed plate ensures the stability of the structure; the track is not only ingenious and practical, but also slidably connected to the upper baffle, allowing the upper baffle to move up and down flexibly; the lower baffle ensures that the paper is properly protected during use; the slot not only increases the complexity of the structure but also improves the ease of use; the sliding rod makes the operation of the entire device smoother; the spring is the key to the device's quick reset; the clamping plate ensures the stability of the device during use; the L-shaped plate enhances the structural stability; the pull rope provides the operator with a convenient and quick control method; the output end of motor two is fixedly connected to a pulley, ensuring that the device can efficiently complete its predetermined functions; and the cleaning mechanism is used to clean the paper, ensuring the cleanliness of the paper during use.

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

[0008] The cleaning mechanism includes a cleaning roller, the outer wall of which is rotatably connected to the left side of the outer wall of the outer shell. Multiple brushes are fixedly connected to the outer wall of the cleaning roller. A motor is fixedly connected to the middle of the right side of the inner wall of the outer shell. A main gear is fixedly connected to the output end of the motor. A driven gear is meshed with the upper and lower sides of the outer wall of the main gear. A main gear is meshed with the outer wall of the driven gear.

[0009] Through the above technical solution: the cleaning roller is rotatably connected to the outer shell, ensuring the flexibility and stability of the cleaning roller during operation; the brush is made of high-quality materials, which can effectively remove dirt and impurities attached to the surface; the output end of motor one is fixedly connected to main gear one, which can ensure the accuracy and efficiency of transmission; the main gear one meshes with the driven gear, which not only enhances the stability of transmission, but also evenly distributes force and avoids damage caused by local overload; the driven gear meshes with main gear two, further ensuring the smooth operation of the transmission chain.

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

[0011] A trapezoidal block is fixedly connected to the top of the outer shell, and an identification plate is fixedly connected to the top of the trapezoidal block.

[0012] Through the above technical solution, the trapezoidal block plays a supporting role in the structure, and the label plate makes it convenient for users to identify and operate.

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

[0014] Multiple discharge plates are fixedly connected to the rear side of the outer casing, and anti-slip blocks are fixedly connected to the upper and lower ends of the outer wall of the sliding rod.

[0015] Through the above technical solutions: the discharge plate takes into account the smooth output of materials, ensuring the efficient operation of the equipment, and the anti-slip block is designed to provide a better grip, ensuring the safety and comfort of users during operation.

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

[0017] Weight reduction grooves are provided on both the left and right sides of the outer wall of the shell, and a fixed plate is fixedly connected to the front side of the reel.

[0018] Through the above technical solutions, the weight reduction groove not only reduces the overall weight, but also makes handling and installation more convenient. The fixed plate ensures that the reel can work stably, thereby ensuring the efficient operation of the entire device.

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

[0020] The outer wall of the cleaning roller is threaded with a limit ring on the left side, and the front side of the outer shell is provided with multiple square grooves.

[0021] The above technical solution provides precise positioning for the cleaning roller, ensuring its accurate position during operation and avoiding unnecessary wear. The square groove not only provides installation space for the cleaning roller but also facilitates cleaning and maintenance.

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

[0023] A controller is fixedly connected to the front left end of the housing, and the controller is electrically connected to motor two and motor one.

[0024] Through the above technical solution, the controller ensures the high efficiency and stability of equipment operation.

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

[0026] A display screen is fixedly connected to the front left end of the controller, and a button is provided on the front right end of the housing.

[0027] The above technical solution enables operators to easily monitor the device status, and the button layout is reasonable and comfortable to the touch, providing users with a convenient interactive interface.

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

[0029] 1. In this utility model, the L-shaped plate is inserted into the slot, and the card plate is pushed outward. After the L-shaped plate passes through the card plate, the spring pushes the card plate inward to lock the L-shaped plate. When disassembling, the sliding rod is pulled to adjust the height of the upper baffle, the motor is started, the motor drives the wheel to rotate, and pulls the upper baffle to slide along the track, thus realizing the installation and disassembly of the upper baffle and the lower baffle, which is convenient for cleaning and replacement. The height of the upper baffle and the lower baffle can also be adjusted to accommodate different sizes of paper.

[0030] 2. In this utility model, when the paper enters the outer casing, the main gear one is started and driven to rotate. Then, the main gear one causes the main gear two, the cleaning roller and the brush to start rotating. The brush cleans the paper to reduce static electricity, thereby achieving efficient cleaning of the paper, reducing dust and static electricity on the paper surface, improving printing quality and the practicality of the equipment. Attached Figure Description

[0031] Figure 1 A perspective view of the front side of the outer shell of a protective mechanism for printing paper in a printing press, as proposed in this utility model;

[0032] Figure 2 This is a partial structural breakdown diagram of the trapezoidal block of a protective mechanism for printing paper in a printing press, as proposed in this utility model.

[0033] Figure 3 This is a partial structural diagram of the fixing plate of a protective mechanism for printing paper in a printing press, as proposed in this utility model.

[0034] Figure 4 This is a partial structural diagram of the upper baffle of a protective mechanism for printing paper in a printing press, as proposed in this utility model.

[0035] Figure 5 This is a partial structural diagram of the brush of a protective mechanism for printing paper in a printing press, as proposed in this utility model.

[0036] Legend:

[0037] 1. Outer casing; 2. Cleaning mechanism; 201. Cleaning roller; 202. Brush; 203. Motor 1; 204. Main gear 1; 205. Driven gear; 206. Main gear 2; 3. Fixing plate; 4. Track; 5. Upper baffle; 6. Lower baffle; 7. Pull rope; 8. Threaded wheel; 9. Motor 2; 10. Sliding rod; 11. Spring; 12. Clamping plate; 13. L-shaped plate; 14. Clamping slot; 15. Square slot; 16. Fixing plate; 17. Controller; 18. Display screen; 19. Button; 20. Limiting ring; 21. Discharge plate; 22. Trapezoidal block; 23. Identification plate; 24. Weight reduction groove; 25. Anti-slip block. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] Please see the appendix Figure 1 Appendix Figure 3 and attached Figure 4 An embodiment of this utility model provides a protective mechanism for printing paper on a printing press, comprising a housing 1, a fixed plate 3 fixedly connected to the top front side of the housing 1, a track 4 provided on both the left and right sides of the front side of the housing 1, an upper baffle 5 slidably connected to the top of the outer wall of the track 4, a lower baffle 6 provided at the bottom of the upper baffle 5, a slot 14 provided in the middle of the bottom surface of the upper baffle 5, a sliding rod 10 slidably connected to both the left and right sides of the front side of the upper baffle 5, a spring 11 fixedly connected to both the left and right sides of the inner wall of the upper baffle 5, a locking plate 12 fixedly connected to the rear end of the sliding rod 10, an L-shaped plate 13 fixedly connected to both the left and right sides of the top of the lower baffle 6, a pull rope 7 fixedly connected to both the left and right sides of the top of the upper baffle 5, a motor 9 fixedly connected to both the left and right sides of the top front side of the housing 1, a thread wheel 8 fixedly connected to the output end of the motor 9, a cleaning mechanism 2 provided inside the housing 1 for cleaning the paper, a weight reduction groove 24 provided on both the left and right sides of the outer wall of the housing 1, and a fixed plate 16 fixedly connected to the front side of the thread wheel 8;

[0040] Specifically, the fixed plate 3 ensures the stability of the structure; the track 4 is not only ingenious and practical, but also slidably connected to the upper baffle 5, allowing the upper baffle 5 to move up and down flexibly; the lower baffle 6 ensures that the paper is properly protected during use; the slot 14 not only increases the complexity of the structure but also improves the ease of use; the sliding rod 10 makes the operation of the entire device smoother; the spring 11 is the key to the device's quick reset; the clamping plate 12 ensures the stability of the device during use; the L-shaped plate 13 enhances the structural stability; the pull rope 7 provides the operator with a convenient and quick control method; the output end of the motor 2 9 is fixedly connected to the spool 8, ensuring that the device can efficiently complete its predetermined function; the cleaning mechanism 2 is used to clean the paper, ensuring the cleanliness of the paper during use; the weight-reducing groove 24 not only reduces the overall weight but also makes handling and installation more convenient; the fixed plate 16 ensures that the spool 8 can work stably, thereby ensuring the efficient operation of the entire device.

[0041] Please see the appendix Figure 2 and attached Figure 5 The cleaning mechanism 2 includes a cleaning roller 201. The outer wall of the cleaning roller 201 is rotatably connected to the left side of the outer wall of the outer shell 1. Multiple brushes 202 are fixedly connected to the outer wall of the cleaning roller 201. A motor 203 is fixedly connected to the middle right side of the inner wall of the outer shell 1. A main gear 204 is fixedly connected to the output end of the motor 203. A driven gear 205 is meshed on both the upper and lower sides of the outer wall of the main gear 204. A main gear 206 is meshed on the outer wall of the driven gear 205. A limit ring 20 is threadedly connected to the left side of the outer wall of the cleaning roller 201. Multiple square grooves 15 are opened on the front side of the outer shell 1.

[0042] Specifically, the cleaning roller 201 is rotatably connected to the outer casing 1, ensuring the flexibility and stability of the cleaning roller 201 during operation. The brush 202 is made of high-quality materials, which can effectively remove dirt and impurities attached to the surface. The output end of the motor 203 is fixedly connected to the main gear 204, which can ensure the accuracy and efficiency of transmission. The main gear 204 is meshed with the driven gear 205, which not only enhances the stability of transmission, but also evenly distributes the force and avoids damage caused by local overload. The driven gear 205 is meshed with the main gear 206, which further ensures the smooth operation of the transmission chain. The cleaning roller 201 is threadedly connected to the limit ring 20, which provides precise positioning for the cleaning roller 201, ensuring its accurate position during operation and avoiding unnecessary wear. The square groove 15 not only provides installation space for the cleaning roller 201, but also facilitates cleaning and maintenance.

[0043] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 3A trapezoidal block 22 is fixedly connected to the top of the outer shell 1, and an identification plate 23 is fixedly connected to the top of the trapezoidal block 22. Multiple discharge plates 21 are fixedly connected to the rear side of the outer shell 1, and anti-slip blocks 25 are fixedly connected to the upper and lower ends of the outer wall of the sliding rod 10.

[0044] Specifically, the trapezoidal block 22 provides structural support, the label plate 23 facilitates user identification and operation, the discharge plate 21 ensures smooth material output and efficient equipment operation, and the anti-slip block 25 aims to provide a better grip and ensure user safety and comfort during operation.

[0045] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 3 A controller 17 is fixedly connected to the front left end of the housing 1. The controller 17 is electrically connected to motor 2 9 and motor 1 203. A display screen 18 is fixedly connected to the front left end of the controller 17. A button 19 is provided on the front right end of the housing 1.

[0046] Specifically, the controller 17 is not only electrically connected to motor 2 9 and motor 1 203 to ensure the efficient and stable operation of the equipment, but also equipped with an intuitive and easy-to-use display screen 18, which allows the operator to easily monitor the equipment status. The buttons 19 are reasonably laid out and have a comfortable touch, providing users with a convenient interactive interface.

[0047] Working principle: Align the L-shaped plate 13 with the slot 14 and insert the L-shaped plate 13 into the slot 14. The L-shaped plate 13 will push the card plate 12, causing the card plate 12 and the sliding rod 10 to slide outward. When the L-shaped plate 13 has completely passed through the card plate 12, the elastic force of the spring 11 will push the card plate 12 inward, thereby locking the L-shaped plate 13 inside the slot 14. If disassembly is required, pull the sliding rod 10 to remove the lower baffle 6. When the height of the upper baffle 5 needs to be adjusted, start the motor 2 9. The motor 2 9 will drive the spool 8 to rotate. During the rotation of the spool 8, the upper baffle 5 at the bottom will be pulled, causing the upper baffle 5 to slide along the outer wall of the track 4. This realizes the installation and disassembly of the upper baffle 5 and the lower baffle 6, which is convenient for cleaning and replacement. It can also adjust the height of the upper baffle 5 and the lower baffle 6 to accommodate different sizes of paper.

[0048] When the paper enters the interior of the outer casing 1 from the square slot 15, the motor 203 is started. The motor 203 drives the main gear 204 to rotate, which in turn drives the main gear 206 to rotate. The main gears 204 and 206 drive the different cleaning rollers 201 and brushes 202 to rotate. The brushes 202 clean the paper, thereby reducing the static electricity on the paper. This achieves efficient cleaning of the paper, thereby reducing dust and static electricity on the paper surface, improving printing quality and the practicality of the equipment.

[0049] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. A protective mechanism for printing paper on a printing press, comprising a housing (1), characterized in that: A fixing plate (3) is fixedly connected to the top front side of the outer shell (1). Tracks (4) are provided on both the left and right sides of the front side of the outer shell (1). An upper baffle (5) is slidably connected to the top of the outer wall of the track (4). A lower baffle (6) is provided at the bottom of the upper baffle (5). A slot (14) is provided in the middle of the bottom surface of the upper baffle (5). A sliding rod (10) is slidably connected to both the left and right sides of the front side of the upper baffle (5). Springs (11) are fixedly connected to both the left and right sides of the inner wall of the upper baffle (5). The sliding rod (10) is fixedly connected to a card plate (12) at its rear end. The lower baffle (6) is fixedly connected to L-shaped plates (13) on both the top left and right sides. The upper baffle (5) is fixedly connected to pull ropes (7) on both the top left and right sides. The front top left and right ends of the outer shell (1) are fixedly connected to motor two (9). The output end of motor two (9) is fixedly connected to a spool (8). The outer shell (1) is equipped with a cleaning mechanism (2) inside. The cleaning mechanism (2) is used to clean the paper.

2. The protective mechanism for printing paper in a printing press according to claim 1, characterized in that: The cleaning mechanism (2) includes a cleaning roller (201). The outer wall of the cleaning roller (201) is rotatably connected to the left side of the outer wall of the outer shell (1). Multiple brushes (202) are fixedly connected to the outer wall of the cleaning roller (201). A motor (203) is fixedly connected to the middle right side of the inner wall of the outer shell (1). A main gear (204) is fixedly connected to the output end of the motor (203). A driven gear (205) is meshed on both the upper and lower sides of the outer wall of the main gear (204). A main gear (206) is meshed on the outer wall of the driven gear (205).

3. The protective mechanism for printing paper in a printing press according to claim 1, characterized in that: A trapezoidal block (22) is fixedly connected to the top of the outer shell (1), and an identification plate (23) is fixedly connected to the top of the trapezoidal block (22).

4. The protective mechanism for printing paper in a printing press according to claim 1, characterized in that: Multiple discharge plates (21) are fixedly connected to the rear side of the outer shell (1), and anti-slip blocks (25) are fixedly connected to the upper and lower ends of the outer wall of the sliding rod (10).

5. The protective mechanism for printing paper in a printing press according to claim 1, characterized in that: The outer wall of the outer shell (1) is provided with weight reduction grooves (24) on both the left and right sides, and the front side of the reel (8) is fixedly connected to a fixed plate (16).

6. The protective mechanism for printing paper in a printing press according to claim 2, characterized in that: The outer wall of the cleaning roller (201) is threaded with a limit ring (20) on the left side, and the front side of the outer shell (1) is provided with a plurality of square grooves (15).

7. The protective mechanism for printing paper in a printing press according to claim 1, characterized in that: A controller (17) is fixedly connected to the front left end of the outer casing (1), and the controller (17) is electrically connected to motor two (9) and motor one (203).

8. The protective mechanism for printing paper in a printing press according to claim 7, characterized in that: The controller (17) is fixedly connected to the display screen (18) on the front left side, and the housing (1) is provided with a button (19) on the front right side.

Citation Information

Patent Citations

  • Printing machine protection device

    CN221718110U