A printing guide device for a printing apparatus

Abstract

This utility model relates to the field of printing equipment, specifically to a printing guide device for printing equipment. It includes a base with a lifting frame on it. Two vertical plates are formed on the lifting frame, and a unwinding roller is positioned between the two plates. A roll of paper is placed on the unwinding roller. Each vertical plate has a clamping component. The lifting frame has a paper driving mechanism, which includes a pressure roller and a driving roller. One end of the roll of paper is pulled out from the unwinding roller and passes between the pressure roller and the driving roller. When installing the unwinding roller, simply raise the rotating arm, horizontally place the end of the unwinding roller into the receiving groove, and lift it with the second guide wheel. Then, press down the rotating arm to press the first guide wheel against the unwinding roller. Finally, lock it with fastening bolts to complete the fixation. The entire process does not require loosening or loosening bolts one by one, nor does it require precise alignment, significantly shortening the unwinding roller assembly and disassembly time and significantly improving feeding efficiency. It also has stronger adaptability and is far more convenient to operate than traditional fixing methods.

Description

Technical Field

[0001] This utility model relates to the field of printing equipment, specifically to a printing guide device for printing equipment. Background Technology

[0002] In the paper feeding process of printing equipment, existing technologies have many shortcomings that urgently need to be addressed: Firstly, in traditional printing guide devices, the unwinding rollers are often fixed with bolts, which is a cumbersome installation method. When changing the paper roll, the bolts need to be loosened one by one, which is complicated and time-consuming, seriously affecting the overall efficiency of the feeding work. Secondly, existing unwinding structures generally lack effective axial limiting components, making the paper roll prone to lateral shifting during unwinding, which directly leads to misalignment of subsequent printed patterns. Thirdly, in existing paper conveying mechanisms, the pressure roller and drive roller are mostly designed with a fixed gap, making it difficult to adaptively adjust the pressure according to the paper thickness, which can easily lead to slippage or paper damage. Utility Model Content

[0003] The purpose of this invention is to provide a printing guide device for printing equipment.

[0004] To achieve this objective, the present invention adopts the following technical solution: A printing guide device for printing equipment includes a base with a lifting frame on the base. Two horizontally spaced vertical plates are formed on the lifting frame. A unwinding roller is positioned between the two vertical plates and is perpendicular to the vertical plates. A roll of paper is mounted on the unwinding roller. Each vertical plate has a clamping member for quickly mounting the unwinding roller between the two vertical plates by clamping its end. The lifting frame also includes a paper driving mechanism comprising a pressure roller and a driving roller positioned vertically between the two vertical plates. Both the pressure roller and the driving roller are parallel to the unwinding roller. One end of the roll of paper is pulled out from the unwinding roller and passes between the pressure roller and the driving roller.

[0005] In order to limit the unwinding roller to the paper roll, a fixed sleeve is coaxially fitted on the unwinding roller. Both ends of the fixed sleeve are coaxially formed with limit rings. The paper roll is placed on the fixed sleeve and is located between the two limit rings.

[0006] To demonstrate the specific structure of the clamping component, each of the upright plates has an L-shaped groove at one end corner, and the upright plate has a receiving groove that communicates with the L-shaped groove. The clamping component includes a rotating arm and a guide wheel assembly. The rotating arm is L-shaped and located on the L-shaped groove, and one end of the rotating arm is hinged to the upright plate. The guide wheel assembly includes a first guide wheel and two second guide wheels. The first guide wheel is located on the rotating arm, and the two second guide wheels are located on the upright plate. The two second guide wheels are symmetrical about the receiving groove. The rotating arm is provided with a locking component that is connected to the upright plate.

[0007] To demonstrate the specific structure of the locking element, one end of the rotating arm is formed with an internal threaded sleeve, and the locking element is a fastening bolt screwed into the internal threaded sleeve. One end of the fastening bolt restricts the rotation of the rotating arm by abutting against the upright plate.

[0008] To demonstrate how the pressure roller is installed, each of the vertical plates has a vertical strip groove at one end, with the upper end of the strip groove passing through the top of the vertical plate. Each strip groove contains a slider, and a horizontal limiting plate is fixedly installed at the top of one end of each vertical plate, with the limiting plate located directly above the slider. A vertical spring is fixed between the slider and the limiting plate, and the two ends of the pressure roller are rotatably connected to the two sliders respectively.

[0009] To demonstrate how the drive rollers are installed, a bearing is embedded in one end of each of the uprights, and the two ends of the drive rollers are connected to two bearings respectively.

[0010] To enable the rotation of the drive roller, a horizontal motor is fixed on one of the vertical plates, and the output end of the motor is coaxially connected to the drive roller.

[0011] In order to achieve the lifting of the lifting frame, four hydraulic cylinders are fixedly installed on the base in a matrix arrangement. Each hydraulic cylinder is vertically arranged, and the output end of each hydraulic cylinder is fixedly connected to the lifting frame upward.

[0012] The beneficial effects of this utility model are: Firstly, when installing the unwinding roller, simply raise the rotating arm, place the end of the unwinding roller horizontally into the receiving groove and lift it up by the second guide wheel, then press down the rotating arm to make the first guide wheel press the unwinding roller tightly, and finally lock it with the fastening bolts to complete the fixation. The whole process does not require loosening or unloosening the bolts one by one, nor does it require precise alignment, which greatly shortens the unwinding roller assembly and disassembly time, significantly improves the feeding efficiency, and has stronger adaptability and is far more convenient to operate than the traditional fixing method. Secondly, the roll of paper is wound around the fixed sleeve and positioned between two limiting rings. The two limiting rings prevent the roll of paper from shifting left or right during unwinding, thus avoiding misalignment of the printed pattern due to the shift in the position of the paper. Thirdly, the spring can drive the slider to move downward through its own elastic force, so that the pressure roller can adaptively press the drive roller. It can automatically adjust the pressure according to the paper thickness, effectively avoiding slippage or paper damage caused by fixed gap. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments of this utility model will be briefly introduced below.

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 for Figure 1 A magnified view of the area indicated by A1 in the diagram; Figure 3 for Figure 1 The enlarged view of the area indicated by A2 in the diagram; Figure 4 This is a three-dimensional structural diagram of the present invention when the rotating arm is raised upward; Figure 5 This is a top view of the present invention; Figure 6 for Figure 5 Sectional view along line AA; Figure 7 for Figure 5 Sectional view along line BB.

[0015] In the diagram: 1. Base; 2. Lifting frame; 3. Vertical plate; 4. Unwinding roller; 5. Paper roll; 6. Pressure roller; 7. Drive roller; 8. Fixing sleeve; 9. Limiting ring; 10. Receiving groove; 11. Rotating arm; 12. No. 1 guide wheel; 13. No. 2 guide wheel; 14. Internal threaded sleeve; 15. Fastening bolt; 16. Strip groove; 17. Slider; 18. Limiting plate; 19. Spring; 20. Bearing; 21. Motor; 22. Hydraulic cylinder. Detailed Implementation

[0016] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0017] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product.

[0018] refer to Figure 1 and Figure 7As shown, a printing guide device for printing equipment includes a base 1, a lifting frame 2 on the base 1, two horizontally spaced vertical plates 3 formed on the lifting frame 2, a unwinding roller 4 between the two vertical plates 3, and the unwinding roller 4 is perpendicular to the vertical plates 3. A roll of paper 5 is placed on the unwinding roller 4. Each vertical plate 3 is provided with a clamping member, which is used to quickly install the unwinding roller 4 between the two vertical plates 3 by clamping the end of the unwinding roller 4. The lifting frame 2 is provided with a paper driving mechanism, which includes a pressure roller 6 and a driving roller 7 distributed vertically between the two vertical plates 3. Both the pressure roller 6 and the driving roller 7 are parallel to the unwinding roller 4. One end of the roll of paper 5 is pulled out from the unwinding roller 4 and passes through the space between the pressure roller 6 and the driving roller 7.

[0019] In actual use, this device is installed beside the printing press. This device is used to continuously and directionally output paper to the printing press. The specific process is as follows: The roll of paper 5 is placed on the unwinding roller 4. The unwinding roller 4 with the roll of paper 5 is quickly installed between the two vertical plates 3 through the clamping device. One end of the roll of paper 5 is passed between the pressure roller 6 and the drive roller 7. Then, the height of the unwinding roller 4 is adjusted by the lifting frame 2, so that the paper passing through the pressure roller 6 and the drive roller 7 is flush with the platform on the printing press. When the drive roller 7 rotates, the unwinding roller 4 rotates automatically to unwind the roll of paper 5. Finally, the paper will continuously move directionally towards the printing press. In summary, the output direction of the paper is controlled by the unwinding of the paper by the unwinding roller 4, ensuring that the paper can move in a straight line towards the printing press, avoiding misalignment of the printed pattern and improving the printing quality.

[0020] refer to Figure 6 and Figure 7 As shown, a fixed sleeve 8 is coaxially sleeved on the unwinding roller 4. Both ends of the fixed sleeve 8 are coaxially formed with limit rings 9. The paper roll 5 is placed on the fixed sleeve 8 and is located between the two limit rings 9.

[0021] After the paper is wound around the fixed sleeve 8 several times, it forms a roll 5. Since the roll 5 is located between the two limiting rings 9, the paper will not shift left or right when the unwinding roller 4 unwinds the roll 5.

[0022] refer to Figure 2 and Figure 4 As shown, each upright plate 3 has an L-shaped groove on one end corner, and the upright plate 3 has a receiving groove 10 that communicates with the L-shaped groove. The clamping member includes a rotating arm 11 and a guide wheel assembly. The rotating arm 11 is L-shaped and is located on the L-shaped groove, and one end of the rotating arm 11 is hinged to the upright plate 3. The guide wheel assembly includes a first guide wheel 12 and two second guide wheels 13. The first guide wheel 12 is located on the rotating arm 11, and the two second guide wheels 13 are located on the upright plate 3. The two second guide wheels 13 are symmetrical about the receiving groove 10. The rotating arm 11 is provided with a locking member that is connected to the upright plate 3.

[0023] When installing the unwinding roller 4, first lift the rotating arm 11, and then place the unwinding roller 4 horizontally between the two vertical plates 3. During this process, insert the end of the unwinding roller 4 downward into the receiving groove 10, and lift the end of the unwinding roller 4 upward through the two second guide wheels 13. After the unwinding roller 4 is placed, rotate the rotating arm 11 downward. The first guide wheel 12 on the rotating arm 11 will press down on the unwinding roller 4. Finally, the rotating arm 11 is fixedly connected to the vertical plate 3 through the locking device. At this time, the unwinding roller 4 will be fixed between the two vertical plates 3, and the unwinding roller 4 can rotate through the guide wheel group.

[0024] refer to Figure 2 As shown, one end of the rotating arm 11 is formed with an internal threaded sleeve 14, and the locking element is a fastening bolt 15 screwed into the internal threaded sleeve 14. One end of the fastening bolt 15 restricts the rotation of the rotating arm 11 by abutting against the vertical plate 3.

[0025] When installing the unwinding roller 4 between the two vertical plates 3, first turn the fastening bolt 15 outward to allow the rotating arm 11 to rotate upward, then place the unwinding roller 4 between the two vertical plates 3, then turn the rotating arm 11 downward so that the first guide wheel 12 presses on the unwinding roller 4, and finally turn the fastening bolt 15 inward to restrict the rotation of the rotating arm 11 by the contact between one end of the fastening bolt 15 and the vertical plate 3.

[0026] refer to Figure 3 As shown, each upright plate 3 has a vertical strip groove 16 at one end, and the upper end of the strip groove 16 passes through the top of the upright plate 3. Each strip groove 16 has a slider 17. Each upright plate 3 has a horizontal limiting plate 18 fixedly installed at the top of one end, and the limiting plate 18 is located directly above the slider 17. A vertical spring 19 is fixed between the slider 17 and the limiting plate 18. The two ends of the pressure roller 6 are rotatably connected to the two sliders 17 respectively.

[0027] Spring 19 drives slider 17 to move downward through its elastic force, so that pressure roller 6 located between the two sliders 17 presses against drive roller 7, and finally the paper is conveyed forward through the cooperation of pressure roller 6 and drive roller 7.

[0028] refer to Figure 4 As shown, a bearing 20 is embedded in one end of each vertical plate 3, and the two ends of the drive roller 7 are respectively connected to two bearings 20.

[0029] The drive roller 7 rotates via the bearing 20.

[0030] refer to Figure 1 and Figure 4 As shown, a horizontal motor 21 is fixed on one of the vertical plates 3, and the output end of the motor 21 is coaxially connected to the drive roller 7.

[0031] After the motor 21 is started, the motor 21 will drive the drive roller 7 to rotate. When the drive roller 7 rotates, the paper sandwiched between the drive roller 7 and the pressure roller 6 will be driven forward and conveyed.

[0032] refer to Figure 1 and Figure 4 As shown, four hydraulic cylinders 22 are fixedly arranged in a matrix on the base 1. Each hydraulic cylinder 22 is vertically arranged, and the output end of each hydraulic cylinder 22 is fixedly connected to the lifting frame 2 upward.

[0033] Four hydraulic cylinders 22 work synchronously to drive the lifting frame 2 to rise and fall.

[0034] Working principle: In actual use, this device is installed beside the printing press. This device is used to continuously and directionally output paper to the printing press. The specific process is as follows: The roll of paper 5 is placed on the unwinding roller 4. The unwinding roller 4 with the roll of paper 5 is quickly installed between the two vertical plates 3 through the clamping device. One end of the roll of paper 5 is passed between the pressure roller 6 and the drive roller 7. Then, the height of the unwinding roller 4 is adjusted by the lifting frame 2, so that the paper passing through the pressure roller 6 and the drive roller 7 is flush with the platform on the printing press. When the drive roller 7 rotates, the unwinding roller 4 rotates automatically to unwind the roll of paper 5. Finally, the paper will continuously move directionally towards the printing press. In summary, the output direction of the paper is controlled by the unwinding of the paper by the unwinding roller 4, ensuring that the paper can move in a straight line towards the printing press, avoiding misalignment of the printed pattern and improving the printing quality.

[0035] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make several improvements and modifications without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A printing guide device for printing equipment, characterized in that, The device includes a base (1), on which a lifting frame (2) is provided. Two vertical plates (3) are formed on the lifting frame (2) and spaced apart in the horizontal direction. A unwinding roller (4) is provided between the two vertical plates (3) and the unwinding roller (4) is perpendicular to the vertical plates (3). A roll of paper (5) is provided on the unwinding roller (4). Each vertical plate (3) is provided with a clamping member. The clamping member is used to clamp the end of the unwinding roller (4) so ​​that it can be quickly installed between the two vertical plates (3). A paper driving mechanism is provided on the lifting frame (2). The paper driving mechanism includes a pressure roller (6) and a driving roller (7) distributed vertically between the two vertical plates (3). The pressure roller (6) and the driving roller (7) are parallel to the unwinding roller (4). One end of the roll of paper (5) is pulled out from the unwinding roller (4) and passes between the pressure roller (6) and the driving roller (7).

2. The printing guide device for printing equipment according to claim 1, characterized in that, A fixed sleeve (8) is coaxially sleeved on the unwinding roller (4). Both ends of the fixed sleeve (8) are coaxially formed with limiting rings (9). The paper roll (5) is placed on the fixed sleeve (8) and is located between the two limiting rings (9).

3. A printing guide device for printing equipment according to claim 1, characterized in that, Each of the upright plates (3) has an L-shaped groove at one end corner, and the upright plate (3) has a receiving groove (10) that communicates with the L-shaped groove. The clamping member includes a rotating arm (11) and a guide wheel assembly. The rotating arm (11) is L-shaped and is located on the L-shaped groove. One end of the rotating arm (11) is hinged to the upright plate (3). The guide wheel assembly includes a first guide wheel (12) and two second guide wheels (13). The first guide wheel (12) is located on the rotating arm (11), and the two second guide wheels (13) are located on the upright plate (3). The two second guide wheels (13) are symmetrical about the receiving groove (10). The rotating arm (11) has a locking member that is connected to the upright plate (3).

4. A printing guide device for printing equipment according to claim 3, characterized in that, One end of the rotating arm (11) is formed with an internal threaded sleeve (14), and the locking element is a fastening bolt (15) screwed into the internal threaded sleeve (14). One end of the fastening bolt (15) restricts the rotation of the rotating arm (11) by abutting against the vertical plate (3).

5. A printing guide device for printing equipment according to claim 1, characterized in that, Each of the upright plates (3) has a vertical strip groove (16) at one end, and the upper end of the strip groove (16) passes through the top of the upright plate (3). Each strip groove (16) has a slider (17) inside. Each of the upright plates (3) has a horizontal limiting plate (18) fixed at the top of one end, and the limiting plate (18) is located directly above the slider (17). A vertical spring (19) is fixed between the slider (17) and the limiting plate (18). The two ends of the pressure roller (6) are rotatably connected to the two sliders (17) respectively.

6. A printing guide device for printing equipment according to claim 1, characterized in that, Each of the vertical plates (3) has a bearing (20) embedded in one end, and the two ends of the drive roller (7) are respectively connected to the two bearings (20).

7. A printing guide device for printing equipment according to claim 1, characterized in that, One of the vertical plates (3) is fixed with a horizontal motor (21), the output end of which is coaxially connected to the drive roller (7).

8. A printing guide device for printing equipment according to claim 2, characterized in that, Four hydraulic cylinders (22) are fixedly arranged in a matrix on the base (1). Each hydraulic cylinder (22) is vertically arranged, and the output end of each hydraulic cylinder (22) is fixedly connected to the lifting frame (2) upward.

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