Semi-automatic plate feeding structure

Abstract

The invention discloses a semi-automatic plate feeding structure, and relates to the technical field of printing machine plate feeding, the semi-automatic plate feeding structure comprises a limiting frame, the inner side of the limiting frame is slidably connected with two groups of symmetrically arranged clamping seats in a limiting manner, the outer part of the limiting frame is fixedly connected with a fixed seat, a clamping mechanism is mounted between the fixed seat and the limiting frame, and the inner side of each clamping seat is provided with a cavity; a sliding groove is formed in the outer portion of the cavity, two sets of symmetrically-arranged sliding rods are slidably connected to the inner side of the sliding groove, clamping plates are fixedly connected to the outer portions of the sliding rods, connecting plates are fixedly connected to one sides of the sliding rods, toothed plates are fixedly connected to the outer portions of the connecting plates, the two sets of toothed plates are arranged in the clamping base in a central symmetry mode, and the righting mechanism is installed on the inner side of the clamping base. According to the structure, coarse positioning of the printing plate is achieved by moving the clamping base bidirectionally and synchronously, the clamping plates are driven to be adjusted oppositely and finely through linkage of the gear and the toothed plate to complete fine righting, the printing plate is automatically and accurately aligned with an upper plate opening of a printing machine in the pressing process in combination with a roller guide structure, and the manual calibration process is greatly simplified.

Description

Technical Field

[0001] The invention relates to the technical field of printing press plate loading, in particular to a semi-automatic plate loading structure. Background Art

[0002] In the field of printing equipment technology, plate installation on lithographic printing presses has long relied on manual labor, requiring precise alignment of the plate edge and manual fixation, which requires high operator proficiency. Although some auxiliary positioning devices have emerged in recent years, they mostly use one-way clamping or simple guide structures, which still have limitations in improving efficiency and positioning accuracy. With the popularization of high-speed printing presses, the market demand for fast, accurate, and low-threshold plate loading technology is becoming increasingly urgent.

[0003] In the prior art, there is a screw-driven positioning structure, whose typical solution includes a fixed base, a manually adjustable screw and a single-sided movable clamp. For example, the clamp is pushed linearly by rotating the screw to clamp the edge of the printing plate, while relying on an external guide rod to assist in coarse positioning. Such a device usually requires manual repeated calibration of the center position of the printing plate and independent operation of the straightening mechanism.

[0004] However, the above-mentioned existing technologies have exposed obvious shortcomings during the application process. First, one-way clamping can easily cause the printing plate to shift, and additional manual adjustment of the centering position is required; second, the clamping and straightening actions are separated, and the operator needs to control different mechanisms step by step, which has low coordination efficiency; third, the traditional rigid clamping block lacks guide buffering when pressing into the plate, which can easily cause damage to the plate edge. These defects seriously restrict the plate loading accuracy and operation smoothness.

[0005] Based on this, the present invention designs a semi-automatic plate loading structure to solve the above problems. Summary of the Invention

[0006] In view of the above-mentioned shortcomings of the prior art, the present invention provides a semi-automatic plate loading structure.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A semi-automatic plate loading structure includes a limit frame, a clamping mechanism and a straightening mechanism, the inner side of the limit frame is slidingly connected with two groups of symmetrically arranged clamping seats, the outside of the limit frame is fixedly connected with a fixed seat, the clamping mechanism is installed between the fixed seat and the limit frame, the inner side of the clamping seat is provided with a cavity, the outside of the cavity is provided with a slide groove, the inner side of the slide groove is slidingly connected with two groups of symmetrically arranged sliding rods, the outside of the sliding rod is fixedly connected with a clamping plate, one side of the sliding rod is fixedly connected with a connecting plate, the outside of the connecting plate is fixedly connected with a tooth plate, and the two groups of tooth plates are centrally symmetrically arranged inside the clamping seat, and the straightening mechanism is installed on the inner side of the clamping seat.

[0009] Furthermore, a mounting plate is fixedly connected to the outside of the limiting frame, and a connecting hole is opened on the outside of the mounting plate.

[0010] Furthermore, a first slot is formed on one side of an interior of the limiting frame, a first slider is fixedly connected to one side of the clamping seat, and the first slider is slidably connected to the inner side of the first slot.

[0011] Furthermore, a second slot is provided on the other side of the interior of the limiting frame, a second slider is fixedly connected to the other side of the clamping seat, and the second slider is slidably connected to the inner side of the second slot.

[0012] Furthermore, the clamping mechanism includes a first motor, a rotating shaft, a first bevel gear, a screw, a second bevel gear and a translation block, the first motor is fixedly connected to the outside of the fixed base, the rotating shaft is rotatably connected to the inner side of the fixed base, and the rotating shaft is fixedly connected to one side of the output shaft of the first motor, and the first bevel gear is fixedly connected to the end of the rotating shaft.

[0013] Furthermore, there are two groups of screw rods and they are symmetrically connected to the inner side of the fixed seat in rotation. The second bevel gear is fixedly connected to the end of the screw rod, and the two groups of second bevel gears are meshed with the first bevel gear. The translation block is fixedly connected to the outside of the second slider and is limitedly slidably connected to the inner side of the fixed seat, and the translation block is threadedly connected to the outside of the screw rod.

[0014] Furthermore, the straightening mechanism includes a rotating rod and a planar gear, a second motor is fixedly connected to the upper side of the clamping seat, the rotating rod is rotatably connected to the inner side of the clamping seat, and the rotating rod is fixedly connected to the lower side of the output shaft of the second motor, the planar gear is fixedly connected to the outside of the rotating rod, and the planar gear is meshed with the two sets of gear plates.

[0015] Furthermore, a mounting groove is provided on the outside of the splint, and a roller is rotatably connected to the inside of the mounting groove.

[0016] Compared with the existing technology, the present invention has the following beneficial effects: 1. The semi-automatic plate loading structure adopts a bidirectional synchronous clamping and gear plate linkage structure, so that the printing plate can automatically complete fine straightening after rough positioning, without the need for manual repeated adjustment of the centering position, which significantly reduces the difficulty of operation. The roller guide structure ensures that the printing plate is pressed into place smoothly and without obstruction, avoiding the plate edge damage problem caused by traditional rigid clamping, thereby improving the success rate of plate loading and the service life of the printing plate;

[0017] 2. This semi-automatic plate loading structure uses a motor-driven bevel gear set to achieve synchronous movement of the clamping base, and cooperates with the flat gear to drive the coordinated movement of the two-sided clamping plates, integrating the traditional step-by-step operation into a continuous automated process, significantly shortening the plate loading time. The entire clamping and straightening process does not require additional manual intervention, effectively reducing human errors and ensuring the consistency of the plate loading position each time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] 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. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0019] Figure 1 A three-dimensional diagram of a semi-automatic plate loading structure of the present invention;

[0020] Figure 2 is a second stereoscopic view of the present invention;

[0021] Figure 3 It is a partial side sectional view of the present invention;

[0022] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0023] Figure 5 for Figure 3 Enlarged view of point B in the middle;

[0024] Figure 6 for Figure 1 Enlarged view of point C in the middle;

[0025] Figure 7 for Figure 3 Enlarged view of point D in the middle.

[0026] The numbers in the figure represent:

[0027] 1. Limit frame; 2. Mounting plate; 3. Clamping seat; 4. First slot; 5. First slider; 6. Second slot; 7. Second slider; 8. Fixed seat; 9. First motor; 10. Rotating shaft; 11. First bevel gear; 12. Screw; 13. Second bevel gear; 14. Translation block; 15. Cavity; 16. Slide groove; 17. Slide rod; 18. Clamping plate; 19. Connecting plate; 20. Tooth plate; 21. Second motor; 22. Rotating rod; 23. Planar gear; 24. Mounting groove; 25. Roller. DETAILED DESCRIPTION

[0028] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments 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 any creative efforts shall fall within the scope of protection of the present invention.

[0029] Example 1: In some embodiments, please refer to the accompanying drawings of the specification. Figure 1-Figure 7 , a semi-automatic plate loading structure, including a limit frame 1, the limit frame 1 as the basic frame of the entire device, its rectangular structure provides installation reference and movement guide for other components, the outside of the limit frame 1 is fixedly connected with a mounting plate 2, the mounting plate 2 serves as a connection interface with the printing press, its plate-like structure is convenient for bolt fixation, and the outside of the mounting plate 2 is provided with a connection hole, the connection hole is used to pass fasteners to achieve a reliable connection with the printing press, the inner side of the limit frame 1 is limited and slidably connected with two groups of symmetrically arranged clamping seats 3, the clamping seats 3 serve as the main clamping components of the printing plate, and their symmetrical arrangement ensures balanced force, the inner side of the limit frame 1 is fixed with a mounting plate 2, and the mounting plate 2 serves as a connection interface with the printing press, and its plate-like structure is convenient for bolt fixation, and the mounting plate 2 is provided with a connection hole on the outside, and the connection hole is used to pass fasteners to achieve a reliable connection with the printing press, the inner side of the limit frame 1 is limited and slidably connected with two groups of symmetrically arranged clamping seats 3, the clamping seats 3 serve as the main clamping components of the printing plate, and their symmetrical arrangement ensures balanced force, the inner side of the limit frame 1 is fixed with a mounting plate 2, and the mounting plate 2 serves as a connection interface with the printing press ... A first slot 4 is provided on the side, and the first slot 4 serves as a guide rail to constrain the movement trajectory of the clamp seat 3. A first slider 5 is fixedly connected to one side of the clamp seat 3. The first slider 5 is rigidly connected to the clamp seat 3 to achieve synchronous movement, and the first slider 5 is slidably connected to the inner side of the first slot 4. This cooperation method ensures the movement accuracy. A second slot 6 is provided on the other side of the interior of the limit frame 1. The second slot 6 and the first slot 4 together constitute a double-track guide system. A second slider 7 is fixedly connected to the other side of the clamp seat 3. The second slider 7 enhances the movement stability of the clamp seat 3, and the second slider 7 is slidably connected to the inner side of the second slot 6.

[0030] The outside of the limit frame 1 is fixedly connected to a fixed seat 8, which serves as a mounting base for the clamping mechanism. Its box structure provides support for the transmission components. The clamping mechanism is installed between the fixed seat 8 and the limit frame 1. The clamping mechanism includes a first motor 9, a rotating shaft 10, a first bevel gear 11, a screw 12, a second bevel gear 13 and a translation block 14. The first motor 9 provides a rotational driving force as a power source and is fixedly connected to the outside of the fixed seat 8. The rotating shaft 10 serves as a power transmission shaft and is rotatably connected to the inner side of the fixed seat 8. The rotating shaft 10 is fixedly connected to one side of the output shaft of the first motor 9 to realize direct power transmission. The first bevel gear 11 is fixedly connected to the end of the rotating shaft 10. The first bevel gear 11 converts horizontal rotation into For vertical power transmission, there are two groups of screw rods 12 and they are symmetrically rotated and connected to the inner side of the fixed seat 8. The screw rod 12 realizes the conversion of rotational motion to linear motion through threaded transmission. The second bevel gear 13 is fixedly connected to the end of the screw rod 12. The second bevel gear 13 is engaged with the first bevel gear 11 to realize power distribution, and the two groups of second bevel gears 13 are engaged with the first bevel gear 11. This meshing relationship ensures bidirectional synchronous motion. The translation block 14 is fixedly connected to the outside of the second slider 7 and is limitedly slidably connected to the inner side of the fixed seat 8. The translation block 14 converts the rotational motion of the screw rod 12 into linear displacement, and the translation block 14 is threadedly connected to the outside of the screw rod 12. This connection method realizes precise position control.

[0031] A cavity 15 is provided on the inner side of the clamping seat 3. The cavity 15 provides an installation space for the straightening mechanism. A slide groove 16 is provided on the outside of the cavity 15. The slide groove 16 serves as a movement guide channel for the clamping plate 18. Two groups of symmetrically arranged slide rods 17 are slidably connected on the inner side of the slide groove 16. The slide rod 17 serves as a force transmission element to connect the clamping plate 18 and the connecting plate 19. The outside of the slide rod 17 is fixedly connected to the clamping plate 18. The clamping plate 18 directly contacts the printing plate to realize the clamping function. One side of the slide rod 17 is fixedly connected to the connecting plate 19. The connecting plate 19 serves as an intermediate connecting member to enhance the structural strength. The outside of the connecting plate 19 is fixedly connected to a tooth plate 20. The tooth plate 20 converts rotational motion into linear motion, and the two groups of tooth plates 20 are centrally symmetrically arranged inside the clamping seat 3. This arrangement ensures symmetrical force application.

[0032] The straightening mechanism is installed on the inner side of the clamping seat 3. The straightening mechanism includes a rotating rod 22 and a flat gear 23. The upper side of the clamping seat 3 is fixedly connected to the second motor 21. The second motor 21 provides straightening power. The rotating rod 22 is rotatably connected to the inner side of the clamping seat 3. The rotating rod 22 serves as a power transmission shaft, and the rotating rod 22 is fixedly connected to the lower side of the output shaft of the second motor 21 to realize direct power transmission. The flat gear 23 is fixedly connected to the outside of the rotating rod 22. The flat gear 23 simultaneously drives the tooth plates 20 on both sides to achieve synchronous movement, and the flat gear 23 is meshed with the two sets of tooth plates 20. This meshing relationship ensures precise symmetrical movement.

[0033] The outside of the clamping plate 18 is provided with a mounting groove 24, which provides a mounting position for the roller 25. The inner side of the mounting groove 24 is rotatably connected to the roller 25, which provides rolling contact when the printing plate is pressed down to reduce friction resistance.

[0034] In this embodiment, when performing the plate loading operation on the printing press, first, the limit frame 1 is fixed to the upper plate mouth of the printing press through the mounting plate 2 and its external connecting hole, and ensure that the geometric centers of the two are aligned, and then the printing plate is placed between the two groups of clamping seats 3 inside the limit frame 1, and the first motor 9 is started to drive the rotating shaft 10 to drive the first bevel gear 11 to rotate. Since the first bevel gear 11 is engaged with the two groups of second bevel gears 13 at the same time, the two groups of screw rods 12 are prompted to rotate in opposite directions. The translation block 14 is threadedly matched with the screw rod 12 and limitedly slides in the fixed seat 8. At the same time, it is fixed to the second slider 7 of the clamping seat 3. The rotation of the screw rod 12 drives the two groups of clamping seats 3 to move synchronously toward or away from each other along the limiting track of the first slot 4 and the first slider 5 through the translation block 14, thereby achieving initial stable clamping of the printing plate.

[0035] In order to accurately align the upper plate mouth of the printing press, the second motor 21 is started, and the rotating rod 22 is driven to drive the flat gear 23 to rotate. The flat gear 23 engages with two sets of centrally symmetrically arranged tooth plates 20, forcing the connecting plate 19 to drive the slide rod 17 and the clamping plate 18 to move synchronously toward each other in the slide groove 16. Secondary clamping is performed from the left and right sides of the printing plate to straighten it to the center area of ​​the limit frame 1. At this time, the printing plate is completely aligned with the upper plate mouth of the printing press. Finally, the printing plate is pressed downward so that it is smoothly stuck in the upper plate mouth of the printing press under the guidance of the roller 25 on the clamping plate 18, completing the semi-automatic plate loading operation. This structure significantly improves the plate loading accuracy and operation convenience.

[0036] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A semi-automatic plate loading structure, comprising a limit frame (1), characterized in that: The invention also includes a clamping mechanism and a straightening mechanism, wherein the inner side of the limit frame (1) is slidingly connected with two groups of symmetrically arranged clamping seats (3), the outer side of the limit frame (1) is fixedly connected with a fixed seat (8), the clamping mechanism is installed between the fixed seat (8) and the limit frame (1), the inner side of the clamping seat (3) is provided with a cavity (15), the outer side of the cavity (15) is provided with a slide groove (16), the inner side of the slide groove (16) is slidingly connected with two groups of symmetrically arranged sliding rods (17), the outer side of the sliding rod (17) is fixedly connected with a clamping plate (18), one side of the sliding rod (17) is fixedly connected with a connecting plate (19), the outer side of the connecting plate (19) is fixedly connected with a tooth plate (20), and the two groups of tooth plates (20) are centrally symmetrically arranged inside the clamping seat (3), and the straightening mechanism is installed on the inner side of the clamping seat (3).

2. The semi-automatic plate loading structure according to claim 1, characterized in that: The exterior of the limiting frame (1) is fixedly connected to a mounting plate (2), and a connecting hole is provided on the exterior of the mounting plate (2).

3. The semi-automatic plate loading structure according to claim 1, characterized in that: A first card slot (4) is provided on one side of the interior of the limit frame (1); a first slider (5) is fixedly connected to one side of the clamping seat (3), and the first slider (5) is slidably connected to the inner side of the first card slot (4).

4. The semi-automatic plate loading structure according to claim 1, characterized in that: A second card slot (6) is provided on the other side of the interior of the limit frame (1), a second slider (7) is fixedly connected to the other side of the clamping seat (3), and the second slider (7) is slidably connected to the inner side of the second card slot (6).

5. The semi-automatic plate loading structure according to claim 4, characterized in that: The clamping mechanism comprises a first motor (9), a rotating shaft (10), a first bevel gear (11), a screw (12), a second bevel gear (13) and a translation block (14); the first motor (9) is fixedly connected to the outside of the fixed seat (8); the rotating shaft (10) is rotatably connected to the inside of the fixed seat (8); the rotating shaft (10) is fixedly connected to one side of the output shaft of the first motor (9); and the first bevel gear (11) is fixedly connected to the end of the rotating shaft (10).

6. The semi-automatic plate loading structure according to claim 5, characterized in that: The screw rods (12) are provided in two groups and are symmetrically connected to the inner side of the fixed seat (8). The second bevel gear (13) is fixedly connected to the end of the screw rod (12), and the two groups of the second bevel gears (13) are meshed with the first bevel gear (11). The translation block (14) is fixedly connected to the outside of the second slider (7) and is limitedly slidably connected to the inner side of the fixed seat (8), and the translation block (14) is threadedly connected to the outside of the screw rod (12).

7. The semi-automatic plate loading structure according to claim 1, characterized in that: The straightening mechanism includes a rotating rod (22) and a flat gear (23); the upper side of the clamping seat (3) is fixedly connected to a second motor (21); the rotating rod (22) is rotatably connected to the inner side of the clamping seat (3), and the rotating rod (22) is fixedly connected to the lower side of the output shaft of the second motor (21); the flat gear (23) is fixedly connected to the outside of the rotating rod (22), and the flat gear (23) is meshed with the two sets of tooth plates (20).

8. The semi-automatic plate loading structure according to claim 1, characterized in that: The outside of the clamping plate (18) is provided with a mounting groove (24), and the inside of the mounting groove (24) is rotatably connected to a roller (25).

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