Feeding device of printing machine

By using a gear connecting rod system and vacuum suction cups in the feeding device of the printing press, the problem of sliding or shifting of printing materials during transportation is solved, efficient and stable material transportation is achieved, and the operating reliability of the equipment is improved.

CN223385533UActive Publication Date: 2025-09-26DALIAN CHANGSHENG PRINTING & PACKAGING CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202422960517.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-03
Publication Date
2025-09-26
Estimated Expiration
2034-12-03

AI Technical Summary

Technical Problem

When the existing printing press feeding device is conveying printing materials, the materials are prone to slipping or shifting, resulting in inaccurate positioning, causing the machine to jam or equipment failure.

Method used

A printing press feeding device is used, which drives the gear and connecting rod system through a driving motor to achieve horizontal clamping of the printing material, and combines vacuum suction cups and sliding rails for stable transportation to ensure that the material is fixed and accurately positioned during the transportation process.

Benefits of technology

It achieves efficient and stable transportation of printing materials, avoids machine jams caused by material sliding or shifting, and improves the operating reliability and efficiency of the equipment.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223385533U_ABST
    Figure CN223385533U_ABST
Patent Text Reader

Abstract

The utility model belongs to the technical field of printing equipment, and particularly relates to a printing machine feeding device which comprises a working table top, supporting legs are fixedly installed at the four ends of the bottom of the working table top, a movable platform is arranged at one end of the top of the working table top, and a base is fixedly installed at one end of the top of the movable platform. A first driving motor is fixedly mounted at the top of the base, a driving bevel gear is fixedly mounted at the output end of the first driving motor, a plurality of fixing rods are fixedly mounted in the middle of the top of the moving platform, semicircular gears are rotatably mounted on the outer portions of the fixing rods, and the semicircular gears are mounted in a mutually meshed mode. A first driving motor is started to drive a semicircular gear to rotate, the semicircular gear rotates to drive a moving plate to horizontally move so as to drive a clamping plate to clamp a printing material, and the effect that the printing material is more stable during conveying can be achieved by clamping and fixing the printing material.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model belongs to the technical field of printing equipment, in particular to a feeding device for a printing press. Background Art

[0002] Printing presses can complete a large amount of printing work in a short period of time, which greatly improves efficiency compared to manual printing. Especially when large-scale production is required, printing presses are indispensable. Modern printing presses usually have a high level of automation, can automatically feed paper, automatically adjust printing parameters, and can perform high-speed and continuous production, reducing manual intervention and lowering production costs.

[0003] The principles of a printing press feeder primarily involve mechanical engineering and automated control. By applying precise mechanical engineering and automated control principles, a printing press feeder can efficiently transport printed materials, providing strong support for this process.

[0004] Existing machines usually use conveyor belts to transport printed materials. During the conveyor belt transportation process, the printed materials may slide or shift, resulting in inaccurate positioning of the materials and getting stuck on the conveyor belt, ultimately causing shutdown or equipment failure. Therefore, a printing press feeding device is proposed to address the above problems. Utility Model Content

[0005] In order to make up for the shortcomings of the existing technology, the existing machines usually use conveyor belts to transport printed materials. During the transportation process of the conveyor belt, the printed materials may slide or shift, resulting in inaccurate positioning of the materials and getting stuck on the conveyor belt, which eventually causes shutdown or equipment failure. The utility model proposes a feeding device for a printing machine.

[0006] Base comprises support, castor, and frame upper is provided with guide rail, and support and conveyer frames movable end contact site are provided with recoil spring or rubber cushion, and castor is arranged on the pin of base bottom four, to carry mobile handler location. The top of each of the movable plate is tightly attached to the bottom of one end of the first connecting rod, and the middle position of the top of each of the movable plate is tightly attached to the second connecting rod, and the two ends of the second connecting rod are rotatably installed inside the second limiting rod, one end of which is externally rotatably installed in the interior of the movable plate, and the other end of the second limiting rod is externally rotatably installed with a fixed block, and the bottom of the fixed block is fixedly installed on the top of the mobile platform. One end side of each of the movable plates is fixedly installed with a clamping plate, and the bottoms of the multiple clamping plates are tightly attached to the supporting plate. By starting the first driving motor to drive the semicircular gear to rotate, the semicircular gear rotates to drive the first connecting rod and the second connecting rod to rotate. When the first connecting rod and the second connecting rod rotate, the effect of driving the movable plate horizontally can be achieved. The effect of horizontal movement of the movable plate can achieve the effect of driving the clamping plate to clamp the printing material, and by clamping and fixing the printing material, the printing material can be more stable when being transported.

[0007] Preferably, an arc plate and a fixed plate are fixedly installed at one end of the top of the work table, a connecting plate is fixedly installed on one side of the fixed plate, a limit block is fixedly installed on the side of one end of the connecting plate, and a limit groove is provided inside the arc plate and the limit block, an arc slider is slidably installed inside the arc plate, a moving rod is fixedly installed on the side of the arc slider, a plurality of air pipes are fixedly installed at the middle position of the bottom of the moving rod, a vacuum suction cup is fixedly installed on the bottom of one end of the air pipe, a driving plate is fixedly installed on the outside of the end of the moving rod away from the arc plate, one end of the driving plate is externally slidably installed on the inside of the limit block, and rotating rods are fixedly installed on both ends of the side of the fixed plate, and one of the rotating rods is externally rotatably installed An electric push rod is installed inside one end of the driving plate and outside the other rotating rod. The output end of the electric push rod is rotatably installed in the middle of one side of the driving plate. The driving plate is driven to rotate by starting the electric push rod. When the driving plate rotates, it will drive the moving rod fixedly installed on the side to rotate. The rotation of the moving rod drives multiple vacuum suction cups provided at the bottom thereof to move in an arc trajectory. When the vacuum suction cup moves to the bottom end of the arc trajectory, it will contact the printing material. At this time, the vacuum suction cup is started to adsorb the printing material. After that, the electric push rod is continued to be started to drive the moving rod to move in the opposite direction. When the moving rod moves in the opposite direction, the vacuum suction cup will reach the top of the arc trajectory. At this time, the vacuum suction cup stops adsorbing the printing material to achieve the effect of unloading the conveyed material.

[0008] Preferably, a second driving motor is fixedly installed on the side surface of one end of the work table, and a threaded rod is fixedly installed on the output end of the second driving motor through the inside of the work table, and a moving block is installed with an external thread of the threaded rod, and one end of the top of the moving block is fixedly installed on the bottom of the support plate, and the other end of the top of the moving block is fixedly installed on the bottom of the moving platform. The moving block is rotated outside the end away from the second driving motor and is installed on the outside of the inner wall of one end of the work table, and the threaded rod is driven to rotate by the second driving motor. When the threaded rod rotates, the moving block mounted on its external thread will move horizontally. When the moving block moves horizontally, it will drive the support plate and the moving platform provided on its top to move. When the support plate and the moving platform move, they will drive the printing material clamped above to move, thereby achieving the effect of conveying the printing material.

[0009] Preferably, both sides of the top of the work table are provided with sliding grooves, a plurality of sliding rails are fixedly installed inside the sliding grooves, sliding blocks are slidably installed between the plurality of sliding rails, and the tops of the plurality of sliding blocks are respectively fixedly installed at the two ends of the bottom of the support plate. The sliding rails drive the sliding blocks to move, thereby achieving the effect of limiting the moving trajectory of the support plate during the movement, thereby preventing the support plate from deviating from the track during the movement.

[0010] Preferably, a protective shell is fixedly installed on the top of the mobile platform, and holes are opened at both ends of one side of the protective shell. The outer parts of the plurality of first connecting rods are arranged inside the holes. The protective shell fixedly installed on the top of the mobile platform can protect the internal driving device and prevent the driving device from being affected by the external environment during operation, which may cause the device to fail to work.

[0011] Preferably, a protective pad is fixedly installed on one side of the outside of each of the clamping plates, and the protective pad is made of rubber. When the clamping plate clamps the outer surface of the printed material, the clamping plate will be in direct contact with the outer surface of the printed material. The rubber protective pad provided on the outer side of the clamping plate can protect the outer surface of the printed material to prevent damage.

[0012] The utility model is beneficial in that:

[0013] The utility model uses a feeding device to feed printing materials in the process of conveying printing materials by starting the first driving motor to drive the semicircular gear to rotate, and the rotation of the semicircular gear drives the first connecting rod and the second connecting rod to rotate. When the first connecting rod and the second connecting rod rotate, the effect of driving the movable plate to move horizontally can be achieved. The horizontal movement of the movable plate can drive the clamping plate to clamp the printing materials, which solves the problem that the existing machines usually use conveyor belts to convey printing materials, and the printing materials will slide or shift during the conveying process of the conveyor belt, resulting in inaccurate position of the materials and being stuck on the conveyor belt, which eventually causes shutdown or equipment failure. By fixing the printing materials during the process of transporting them, more efficient and stable transportation of the printing materials can be achieved, thereby improving the transportation efficiency of the printing materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 This is a schematic diagram of the external structure of the feeding device of the printing press;

[0016] Figure 2 Schematic diagram of the internal structure of the fixing device;

[0017] Figure 3 is a schematic diagram of the external structure of the mobile device;

[0018] Figure 4Schematic diagram of the external structure of the blanking device;

[0019] Figure 5 Schematic diagram of the external structure of the driving device;

[0020] In the figure: 1. work surface; 2. support leg; 3. mobile platform; 4. base; 5. first drive motor; 6. semicircular gear; 7. driving bevel gear; 8. driven bevel gear; 9. fixed rod; 10. first connecting rod; 11. first limiting rod; 12. second connecting rod; 13. moving plate; 14. clamping plate; 15. second limiting rod; 16. fixed block; 17. support plate; 18. second drive motor; 19. threaded rod; 20. slide groove; 21. sliding track; 22. sliding block; 23. moving block; 24. protective shell; 25. curved plate; 26. fixed plate; 27. connecting plate; 28. limiting block; 29. ​​limiting groove; 30. drive plate; 31. electric push rod; 32. rotating rod; 33. curved slider; 34. moving rod; 35. air pipe; 36. vacuum suction cup. DETAILED DESCRIPTION

[0021] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1-5As shown, a feeding device for a printing press comprises a work surface 1, support legs 2 are fixedly mounted on the four ends of the bottom of the work surface 1, a mobile platform 3 is provided at one end of the top of the work surface 1, a base 4 is fixedly mounted on one end of the top of the mobile platform 3, a first driving motor 5 is fixedly mounted on the top of the base 4, a driving bevel gear 7 is fixedly mounted on the output end of the first driving motor 5, a plurality of fixed rods 9 are fixedly mounted on the middle position of the top of the mobile platform 3, a plurality of semicircular gears 6 are rotatably mounted on the outside of the plurality of fixed rods 9, the plurality of semicircular gears 6 are meshed with each other, and a driven bevel gear 8 is meshed with the outside of the driving bevel gear 7. The bottom of the driven bevel gear 8 is fixedly mounted on the top of one of the semicircular gears 6, and the sides of the multiple semicircular gears 6 are fixedly mounted with a first connecting rod 10, one end of the first connecting rod 10 is internally rotatably mounted with a first limiting rod 11, and one end of the first limiting rod 11 is externally rotatably mounted with a movable plate 13, the top of the movable plate 13 is tightly attached to the bottom of one end of the first connecting rod 10, and the middle position of the top of the multiple movable plates 13 is tightly attached to a second connecting rod 12, and the two ends of the second connecting rod 12 are internally rotatably mounted with a second limiting rod 15, one end of the second limiting rod 15 is externally rotatably mounted inside the movable plate 13, and the other end is externally rotatably mounted inside the movable plate 13. One end of the second limit rod 15 is externally rotatably mounted with a fixed block 16, the bottom of the fixed block 16 is fixedly mounted on the top of the mobile platform 3, and one end side surface of multiple mobile plates 13 is fixedly mounted with a clamping plate 14, and the bottom of multiple clamping plates 14 is tightly attached to a support plate 17; when working, the existing machine usually uses a conveyor belt to transport the printed material. During the conveying process of the conveyor belt, the printed material will slide or shift, resulting in an inaccurate position of the material and getting stuck on the conveyor belt, which eventually causes shutdown or equipment failure. By starting the first drive motor 5 to drive the active bevel gear 7 to rotate, the active bevel gear 7 rotates to drive the driven bevel gear The wheel 8 rotates, and the driven bevel gear 8 rotates to drive the semicircular gear 6 provided at the bottom to rotate. When the semicircular gear 6 rotates, it will drive another semicircular gear 6 meshed with it to rotate. The rotation of the semicircular gear 6 drives the first connecting rod 10 fixed to it to rotate. The rotation of the first connecting rod 10 drives the movable plate 13 to move. When the movable plate 13 moves, it is limited by the second connecting rod 12 installed in the middle thereof, so that it moves horizontally during the movement. The horizontal movement of the movable plate 13 during the movement is achieved to drive the clamping plate 14 to move horizontally, and the horizontal movement of the clamping plate 14 is achieved to fix the printed material.

[0023] The top end of the work table 1 is fixedly installed with an arc plate 25 and a fixed plate 26, and a connecting plate 27 is fixedly installed on one side of the fixed plate 26. A limit block 28 is fixedly installed on the side of one end of the connecting plate 27. The interior of the arc plate 25 and the limit block 28 are provided with a limit groove 29. An arc slider 33 is slidably installed inside the arc plate 25, and a moving rod 34 is fixedly installed on the side of the arc slider 33. A plurality of air pipes 35 are fixedly installed at the middle position of the bottom of the moving rod 34, and a vacuum suction cup 36 is fixedly installed on the bottom of one end of the air pipe 35. A driving plate 30 is fixedly installed on the outside of the end of the moving rod 34 away from the arc plate 25. One end of the driving plate 30 is slidably installed on the inside of the limit block 28. Both ends of the side of the fixed plate 26 are fixedly installed It is equipped with a rotating rod 32, one of which is externally rotatably mounted inside one end of the driving plate 30, and the other externally rotatably mounted with an electric push rod 31, and the output end of the electric push rod 31 is rotatably mounted in the middle of one side of the driving plate 30; when working, the existing machine usually uses a conveyor belt to transport the printed material. During the conveying process of the conveyor belt, the printed material will slide or shift, resulting in inaccurate position of the material and getting stuck on the conveyor belt, eventually causing shutdown or equipment failure. By starting the electric push rod 31, the driving plate 30 is driven to rotate, and the driving plate 30 is rotated to drive the moving rod 34 to move, and the moving rod 34 is driven to move the air pipe 35 and the vacuum suction cup 36 to move, and the vacuum suction cup 36 is moved to achieve the effect of unloading the printed material.

[0024] A second drive motor 18 is fixedly installed on the side surface of one end of the work table 1, and a threaded rod 19 is fixedly installed on the output end of the second drive motor 18 through the inside of the work table 1, and a moving block 23 is installed on the external thread of the threaded rod 19. One end of the top of the moving block 23 is fixedly installed on the bottom of the support plate 17, and the other end of the top of the moving block 23 is fixedly installed on the bottom of the moving platform 3. The moving block 23 is rotatably installed on the outside of the inner wall of one end of the work table 1 at one end of the work table 1 at one time; when working, the existing machine usually uses a conveyor belt to transport printed materials. During the transportation process of the conveyor belt, the printed materials will slide or shift, resulting in inaccurate position of the material and getting stuck on the conveyor belt, which eventually causes shutdown or equipment failure. The threaded rod 19 is driven to rotate by the second drive motor 18, and the moving block 23 is driven to move by the rotation of the threaded rod 19, and the support plate 17 and the moving platform 3 are driven to move by the movement of the moving block 23.

[0025] Both sides of the top of the work table 1 are provided with a slide groove 20, and a plurality of sliding rails 21 are fixedly installed inside the slide groove 20, and a sliding block 22 is slidably installed between the plurality of sliding rails 21, and the tops of the plurality of sliding blocks 22 are respectively fixedly installed on the two ends of the bottom of the support plate 17; when working, the existing machine usually uses a conveyor belt to transport the printed material. During the conveying process of the conveyor belt, the printed material will slide or shift, resulting in an inaccurate position of the material and getting stuck on the conveyor belt, which eventually causes shutdown or equipment failure. The sliding rail 21 drives the sliding block 22 to move to achieve the effect of limiting the support plate 17 during its movement.

[0026] A protective shell 24 is fixedly installed on the top of the mobile platform 3, and holes are opened at both ends of one side of the protective shell 24, and the exterior of multiple first connecting rods 10 is arranged inside the hole; when working, the existing machine usually uses a conveyor belt to transport the printed materials. During the conveyor belt transportation, the printed materials will slide or shift, resulting in inaccurate position of the materials and getting stuck on the conveyor belt, which eventually causes shutdown or equipment failure. The protective shell 24 protects the internal driving device to prevent it from being affected by the external environment.

[0027] A protective pad is fixedly installed on one side of the outside of the multiple clamping plates 14, and the protective pad is made of rubber. When working, the existing machine usually uses a conveyor belt to transport the printed material. During the conveying process of the conveyor belt, the printed material will slide or shift, resulting in inaccurate position of the material and getting stuck on the conveyor belt, eventually causing shutdown or equipment failure. The protective pad provided on the outside of the clamping plate 14 can protect the outside of the printed material to prevent the clamping plate 14 from damaging the surface of the printed material.

[0028] The working principle is that when the feeding device is used to feed the printing material during the process of conveying the printing material, the first driving motor 5 is started to drive the active bevel gear 7 to rotate, and the rotation of the active bevel gear 7 drives the driven bevel gear 8 to rotate, and the rotation of the driven bevel gear 8 drives the semicircular gear 6 provided at the bottom to rotate. When the semicircular gear 6 rotates, it will drive another semicircular gear 6 meshed with it to rotate, and the rotation of the semicircular gear 6 drives the first connecting rod 10 fixed to it to rotate, and the rotation of the first connecting rod 10 drives the movable plate 13 to move. When the movable plate 13 moves, it is limited by the second connecting rod 12 installed in the middle thereof, so that it moves horizontally during the movement. The horizontal movement of the movable plate 13 during the movement drives the clamping plate 14 to move horizontally, and the horizontal movement of the clamping plate 14 achieves the effect of fixing the printing material, and then the second driving motor is started. 18 drives the threaded rod 19 to rotate, and the rotation of the threaded rod 19 drives the moving block 23 threadedly mounted thereon to move horizontally. When the moving block 23 moves horizontally, it drives the moving platform 3 and the support plate 17 to move horizontally, thereby achieving the effect of moving the printing material above it. When the printing material moves to the end, the driving plate 30 is driven to move by starting the electric push rod 31, and the driving plate 30 moves to drive the moving rod 34 fixedly mounted on its side to rotate in an arc. The arc rotation of the moving rod 34 drives the multiple vacuum suction cups 36 provided below it to rotate in an arc trajectory. When the vacuum suction cup 36 rotates in an arc, it adsorbs the printing material below it. After the adsorption is completed, the vacuum suction cup 36 is driven by the electric push rod 31 to rotate in the opposite direction, driving the printing material adsorbed below the vacuum suction cup 36 to move. When it moves to the end of the arc trajectory, it stops adsorbing the printing material to achieve the effect of unloading.

[0029] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0030] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. A feeding device for a printing press, characterized in that: The invention comprises a work surface (1), wherein the bottom four ends of the work surface (1) are fixedly mounted with support legs (2), a top end of the work surface (1) is provided with a mobile platform (3), a top end of the mobile platform (3) is fixedly mounted with a base (4), a top of the base (4) is fixedly mounted with a first drive motor (5), an output end of the first drive motor (5) is fixedly mounted with a driving bevel gear (7), a plurality of fixed rods (9) are fixedly mounted at the top middle position of the mobile platform (3), a plurality of fixed rods (9) are rotatably mounted on the outside of the plurality of fixed rods (9), the plurality of the semicircular gears (6) are meshed with each other, a driven bevel gear (8) is meshed with the outside of the driving bevel gear (7), the bottom of the driven bevel gear (8) is fixedly mounted on the top of one of the semicircular gears (6), and the sides of the plurality of the semicircular gears (6) are fixedly mounted with a first connecting rod (10 ), a first limiting rod (11) is internally rotatably installed at one end of the first connecting rod (10), a movable plate (13) is externally rotatably installed at one end of the first limiting rod (11), the top of the movable plate (13) is tightly attached to the bottom of one end of the first connecting rod (10), and the middle positions of the tops of multiple movable plates (13) are tightly attached to the second connecting rod (12), and second limiting rods (15) are internally rotatably installed at both ends of the second connecting rod (12), one end of one of the second limiting rods (15) is externally rotatably installed inside the movable plate (13), and another end of the second limiting rod (15) is externally rotatably installed with a fixed block (16), the bottom of the fixed block (16) is fixedly installed on the top of the movable platform (3), and a clamping plate (14) is fixedly installed on the side of one end of multiple movable plates (13), and the bottoms of multiple clamping plates (14) are tightly attached to the support plate (17).

2. A feeding device for a printing press according to claim 1, characterized in that: An arc plate (25) and a fixed plate (26) are fixedly installed at one end of the top of the work surface (1), a connecting plate (27) is fixedly installed on one side of the fixed plate (26), a limiting block (28) is fixedly installed on one end side of the connecting plate (27), and limiting grooves (29) are provided inside the arc plate (25) and the limiting block (28), an arc slider (33) is slidably installed inside the arc plate (25), a moving rod (34) is fixedly installed on the side of the arc slider (33), and a plurality of gas pipes (35) are fixedly installed at the middle position of the bottom of the moving rod (34), and the gas pipes ( A vacuum suction cup (36) is fixedly installed at the bottom of one end of the movable rod (34), a driving plate (30) is fixedly installed on the outside of one end of the movable rod (34) away from the arc plate (25), and one end of the driving plate (30) is externally slidably installed inside the limit block (28), and rotating rods (32) are fixedly installed on both ends of the side of the fixed plate (26), wherein the outside of one rotating rod (32) is rotatably installed inside one end of the driving plate (30), and the outside of the other rotating rod (32) is rotatably installed with an electric push rod (31), and the output end of the electric push rod (31) is rotatably installed in the middle of one side of the driving plate (30).

3. A feeding device for a printing press according to claim 1, characterized in that: A second drive motor (18) is fixedly mounted on the side surface of one end of the work surface (1); a threaded rod (19) is fixedly mounted on the output end of the second drive motor (18) through the interior of the work surface (1); a moving block (23) is mounted on the external thread of the threaded rod (19); one top end of the moving block (23) is fixedly mounted on the bottom of the support plate (17); the other top end of the moving block (23) is fixedly mounted on the bottom of the moving platform (3); and the moving block (23) is rotatably mounted on the outside of the inner wall of one end of the work surface (1) away from the end of the second drive motor (18).

4. A feeding device for a printing press according to claim 1, characterized in that: Both sides of the top of the work surface (1) are provided with a slide groove (20), a plurality of sliding rails (21) are fixedly installed inside the slide groove (20), a plurality of sliding blocks (22) are slidably installed between the plurality of sliding rails (21), and the tops of the plurality of sliding blocks (22) are respectively fixedly installed at the two ends of the bottom of the support plate (17).

5. The feeding device of a printing press according to claim 1, characterized in that: A protective shell (24) is fixedly mounted on the top of the mobile platform (3), and holes are provided at both ends of one side of the protective shell (24), and the exteriors of the plurality of first connecting rods (10) are arranged inside the holes.

6. A feeding device for a printing press according to claim 1, characterized in that: A protective pad is fixedly mounted on one side of the exterior of each of the plurality of clamping plates (14), and the protective pad is made of rubber.