Paper positioning device for book printing

Abstract

The utility model relates to the field of printing technology, and discloses a book printing paper positioning device which comprises a tray, clamping grooves are formed in the four corners of the tray, clamping blocks are connected into the clamping grooves in a sliding mode, fixing blocks are fixedly connected to the ends, away from the tray, of the clamping blocks, and connecting columns are rotationally connected to the opposite sides of the two fixing blocks. A tension roller is fixedly connected between the two connecting columns, clamping mechanisms are fixedly connected to the four corners of the top of the tray, and cleaning mechanisms are fixedly connected to the two sides of the top of the tray. According to the detachable tension roller, by means of the tray, the clamping grooves, the clamping blocks, the connecting rods and other structures, the effect that the whole structure of the tension roller is detachable is achieved, and the tension roller can be easily replaced according to different types of paper. According to the paper cleaning device, the effect that paper can be cleaned is achieved through the tray, the connecting block, the extrusion spring, the brush and other structures.

Description

Technical Field

[0001] The utility model relates to the field of printing technology, in particular to a paper positioning device for book printing. Background Art

[0002] Printing is the technology of mass-producing the contents of text, pictures, photos, anti-counterfeiting manuscripts, etc. by transferring ink to the surface of materials such as paper, textiles, plastics, leather, PVC, PC, etc. through processes such as plate making, inking, and pressurization. In order to ensure the printing quality, most factories need to use a paper positioning device for printing.

[0003] After searching, Chinese patent announcement number: CN219990616U discloses a paper positioning device for book printing, including a conveyor belt, both sides of the conveyor belt are bolted with support plates, the top of the support plate is bolted with several brackets, the bottom of the bracket is bolted with a hydraulic rod, and several pressure rollers are arranged above the conveyor belt, the output shaft of the hydraulic rod is bolted with a cross plate, the top of the cross plate is fixed with a compression spring, the top of the pressure roller is bolted with a fixed plate, and the bottom end of the compression spring is fixedly connected to the fixed plate; the utility model drives the screw to rotate through a driving mechanism, so that the screw sleeves on both sides of the screw surface drive the movable plate to move relative to each other through the vertical rod, thereby changing the distance between the limiting rollers on both sides, and the limiting rollers on both sides move synchronously to ensure that the limited paper is positioned at the center position of the conveyor belt, thereby preventing the paper from deviating, and the distance between the limiting rollers is adjustable to adapt to paper of different widths.

[0004] However, the utility model has an integral structure, and it is inconvenient to dismantle and replace a single structure or part. In addition, the paper surface is completely exposed and no paper cleaning facilities are provided, which easily causes the paper surface to become dirty. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a paper positioning device for book printing, aiming to improve the problems that the positioning device cannot be removed and replaced and the paper is inconvenient to clean.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solution: a paper positioning device for book printing, comprising a tray, wherein the four corners of the tray are provided with a card slot, the inside of the card slot is slidably connected to a card block, the end of the card block away from the tray is fixedly connected to a fixed block, the two fixed blocks are rotatably connected to connecting columns on opposite sides, a tension roller is fixedly connected between the two connecting columns, the four corners of the top of the tray are fixedly connected to a card mechanism, and both sides of the top of the tray are fixedly connected to a cleaning mechanism.

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

[0008] The locking mechanism includes a mounting sleeve with a locking groove inside the mounting sleeve. A reset spring is fixedly connected to the inside of the locking groove, and the other end of the reset spring is fixedly connected to a connecting rod. The outside of the connecting rod is fixedly connected to a pull rod on the side close to the reset spring. The top of the locking block is fixedly connected to a positioning block, and the connecting rod is engaged with the positioning block.

[0009] As a further description of the above technical solution:

[0010] The cleaning mechanism includes a connecting block and a limiting plate. The connecting block is fixedly connected to the top of the fixed block. The mounting shell is fixedly connected between the two connecting blocks. A plurality of extrusion springs are fixedly connected inside the mounting shell. The other ends of the plurality of extrusion springs are fixedly connected to the side of the limiting plate away from the tray. The end of the limiting plate away from the extrusion spring is fixedly connected to the extrusion plate, and the side of the extrusion plate away from the limiting plate is fixedly connected to a brush.

[0011] As a further description of the above technical solution:

[0012] The connecting rod passes through one side of the installation sleeve close to the positioning block, and the pull rod is engaged with the outer portion of the installation sleeve.

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

[0014] The outer sleeve of the pull rod is provided with a rubber sleeve.

[0015] As a further description of the above technical solution:

[0016] The limiting plate is slidably connected to the interior of the installation shell, and the extrusion plate is slidably connected to a side of the installation shell close to the tray.

[0017] As a further description of the above technical solution:

[0018] The brush fits snugly into the tray.

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

[0020] A protective cover is provided on the outside of the tension roller.

[0021] The utility model has the following beneficial effects:

[0022] 1. In this utility model, the entire structure of the tension roller is detachable by means of the components including the tray, the card slot, the card block, and the connecting rod. A damaged tension roller can be removed and a new one can be installed in time to improve printing efficiency.

[0023] 2. In the utility model, the paper can be cleaned by the composition of the tray, connecting block, extrusion spring, brush and other structures. Cleaning mechanisms are set at the paper feed end and the paper discharge end, which facilitates the cleaning of the paper surface before and after printing. There is no need for manual cleaning, ensuring that the paper surface will not be dirty during paper feeding and paper discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is an overall three-dimensional diagram of a paper positioning device for book printing proposed by the utility model;

[0025] Figure 2 This is a three-dimensional diagram of a tray of a paper positioning device for book printing proposed by the utility model;

[0026] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0027] Figure 4 This is a cross-sectional view of a cleaning mechanism of a paper positioning device for book printing proposed by the present invention;

[0028] Figure 5 The utility model is a side view of the engaging mechanism of a paper positioning device for book printing.

[0029] Legend:

[0030] 1. Tray; 2. Fixed block; 3. Card block; 4. Card slot; 5. Tension roller; 6. Connecting column; 7. Cleaning mechanism; 701. Mounting shell; 702. Extrusion spring; 703. Limiting plate; 704. Extrusion plate; 705. Brush; 706. Connecting block; 8. Engaging mechanism; 801. Mounting sleeve; 802. Return spring; 803. Engaging slot; 804. Pull rod; 805. Connecting rod; 806. Positioning block. DETAILED DESCRIPTION

[0031] The following will be combined with the 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.

[0032] Reference Figure 1-Figure 3The utility model provides an embodiment: a paper positioning device for book printing, comprising a tray 1, with card slots 4 provided at the four corners of the tray 1, which serve to engage the card block 3. The card block 3 is slidably connected inside the card slot 4, and the end of the card block 3 away from the tray 1 is fixedly connected to the fixed block 2, which serves to fix the position of the tension roller 5. The two fixed blocks 2 are rotatably connected to the opposite sides with connecting columns 6, which serve to connect the tension roller 5. The tension roller 5 is fixedly connected between the two connecting columns 6, which serves to position the paper. The four corners on the top of the tray 1 are fixedly connected with a card mechanism 8, which serves to stabilize the structure of the tension roller 5. Cleaning mechanisms 7 are fixedly connected to both sides of the top of the tray 1, which serve to clean the paper surface.

[0033] Reference Figure 4-Figure 5 The locking mechanism 8 includes a mounting sleeve 801, and a locking groove 803 is provided inside the mounting sleeve 801, which serves to fix the internal structure of the locking mechanism 8. A reset spring 802 is fixedly connected to the inside of the locking groove 803, which serves to rebound the connecting rod 805. The other end of the reset spring 802 is fixedly connected to the connecting rod 805, which serves to engage the positioning block 806. The outside of the connecting rod 805, close to the reset spring 802, is fixedly connected to a pull rod 804, which serves to adjust the extension and retraction of the connecting rod 805. The top of the clamping block 3 is fixedly connected to the positioning block 806, which serves to open and close the locking mechanism 8. The connecting rod 805 is engaged with the positioning block 806. The cleaning mechanism 7 includes a connecting block 706, which serves to fix the position of the mounting shell 701. And a limit plate 703, which serves to prevent the extrusion spring 702 from falling off. The connecting block 706 is fixedly connected to the top of the fixed block 2, and a mounting shell 701 is fixedly connected between the two connecting blocks 706, which plays the role of fixing the internal structure of the cleaning mechanism 7. A plurality of extrusion springs 702 are fixedly connected to the inside of the mounting shell 701, which play the role of squeezing the limit plate 703. The other ends of the plurality of extrusion springs 702 are all fixedly connected to the side of the limit plate 703 away from the tray 1, and the end of the limit plate 703 away from the extrusion spring 702 is fixedly connected to the extrusion plate 704, which plays the role of pushing the brush 705. The side of the extrusion plate 704 away from the limit plate 703 is fixedly connected to the brush 705, which plays the role of cleaning the paper surface. The connecting rod 805 passes through the side of the mounting sleeve 801 close to the positioning block 806, and the pull rod 804 is engaged with the outside of the mounting sleeve 801. The outer sleeve of the pull rod 804 is provided with a rubber sleeve to protect the top of the pull rod 804 from breaking. The limiting plate 703 is slidably connected to the interior of the mounting housing 701, and the squeezing plate 704 is slidably connected to the side of the mounting housing 701 near the tray 1. The brush 705 is in contact with the tray 1. The tension roller 5 is provided with a protective cover to increase the friction between the tension roller 5 and the paper surface.

[0034] Working Principle: During use, the entire tray 1 is secured inside the printing press. Paper is placed on the tray 1 through the tension roller 5. After adjusting the paper position and securing it with tension, printing can begin. During printing, the internal compression spring 702 of the cleaning mechanism 7 forces the brush 705 to contact the paper surface for cleaning.

[0035] When the tension roller 5 needs to be replaced, first pull the pull rod 804 to pull the connecting rod 805 out of the positioning block 806, open the locking mechanism 8, and then lift the fixed block 2 upward to make the clamping block 3 slide out of the clamping slot 4 to remove the entire tension roller 5 structure. When installing the tension roller 5, first adjust the position of the fixed block 2, align the clamping block 3 and slide it into the clamping slot 4 to lock it tightly, then pull back the pull rod 804, let the connecting rod 805 re-engage into the positioning block 806 through the rebound effect of the return spring 802, close the clamping mechanism 8 to complete the installation of the entire tension roller 5 structure.

[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A paper positioning device for book printing, comprising a tray (1), characterized in that: The tray (1) is provided with a card slot (4) at each of its four corners, a card block (3) is slidably connected inside the card slot (4), a fixed block (2) is fixedly connected to one end of the card block (3) away from the tray (1), two connecting columns (6) are rotatably connected to opposite sides of the two fixing blocks (2), a tension roller (5) is fixedly connected between the two connecting columns (6), the four corners of the top of the tray (1) are fixedly connected to a card mechanism (8), and both sides of the top of the tray (1) are fixedly connected to a cleaning mechanism (7).

2. A paper positioning device for book printing according to claim 1, characterized in that: The locking mechanism (8) comprises a mounting sleeve (801), a locking groove (803) is provided inside the mounting sleeve (801), a reset spring (802) is fixedly connected inside the locking groove (803), a connecting rod (805) is fixedly connected to the other end of the reset spring (802), a pull rod (804) is fixedly connected to the outside of the connecting rod (805) on the side close to the reset spring (802), a positioning block (806) is fixedly connected to the top of the locking block (3), and the connecting rod (805) is locked with the positioning block (806).

3. A paper positioning device for book printing according to claim 1, characterized in that: The cleaning mechanism (7) comprises a connecting block (706) and a limiting plate (703); the connecting block (706) is fixedly connected to the top of the fixing block (2); a mounting shell (701) is fixedly connected between the two connecting blocks (706); a plurality of extrusion springs (702) are fixedly connected inside the mounting shell (701); the other ends of the plurality of extrusion springs (702) are fixedly connected to a side of the limiting plate (703) away from the tray (1); an end of the limiting plate (703) away from the extrusion springs (702) is fixedly connected to an extrusion plate (704); and a side of the extrusion plate (704) away from the limiting plate (703) is fixedly connected to a brush (705).

4. A paper positioning device for book printing according to claim 2, characterized in that: The connecting rod (805) passes through a side of the installation sleeve (801) close to the positioning block (806), and the pull rod (804) is engaged with the outside of the installation sleeve (801).

5. A paper positioning device for book printing according to claim 2, characterized in that: The outer sleeve of the pull rod (804) is provided with a rubber sleeve.

6. A paper positioning device for book printing according to claim 3, characterized in that: The limiting plate (703) is slidably connected to the inside of the installation shell (701), and the pressing plate (704) is slidably connected to a side of the installation shell (701) close to the tray (1).

7. A paper positioning device for book printing according to claim 3, characterized in that: The brush (705) is in close contact with the tray (1).

8. A paper positioning device for book printing according to claim 1, characterized in that: A protective cover is arranged on the outside of the tension roller (5).

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