Anti-deviation digital printing machine unwinding limiting mechanism

Abstract

The utility model relates to the technical field of digital printing machines, and discloses an anti-deviation digital printing machine unwinding limiting mechanism which comprises a base, a support is fixedly installed on the top of the base, and an unwinding mechanism is fixedly arranged on the top of the support. According to the unwinding rod disassembling device, a clamping sleeve is made to move along the interior of a first mounting groove through rotation of a second rotary knob, two sets of clamping plates are further opened, then two sets of first moving blocks are made to move outwards through rotation of a first rotary knob, and therefore disassembling of an unwinding rod is completed. According to the device, fixing rods can be fixed through rotation of a second rotary knob, an unwinding rod is disassembled through rotation of a first rotary knob, the unwinding rod can be rapidly replaced, the two fixing rods can be fixedly installed, shaking is avoided, the printing quality is improved, and the replacement efficiency of workers is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of digital printing machines, and more specifically, to an anti-deviating unwinding limiting mechanism for a digital printing machine. Background Art

[0002] A digital printing press is a device that outputs electronic files directly to a printing press for printing. It processes, records, and converts the printed content through a prepress system that combines text and graphics, and then transfers this information to paper or other carriers.

[0003] The unwinding limit mechanism in a digital printing machine is mainly used to control the position and tension of the coil during the unwinding process to ensure that the coil can be transported stably and accurately during the printing process. Current digital printing machines usually control the tension of the coil through a coil tension control device to avoid the deviation of the coil. However, during unwinding, the coil tension will change, causing the unwinding rod to shake. In order to avoid shaking, the unwinding rod is usually fixedly installed. However, when facing printing coils of different materials, the unwinding rod will be in direct contact with the coil during the unwinding process and will be subject to a certain amount of pressure and friction. After long-term use, the surface of the guide rod may be worn, scratched or deformed, which may affect the transmission stability and accuracy of the coil. The firmly installed unwinding rod is very difficult to disassemble and install, which delays printing time, so it needs to be improved and optimized. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides an anti-deviating unwinding limiting mechanism for a digital printing machine, which has the advantages of being fastened to prevent deflection and being quick to disassemble and assemble.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-deviated digital printing machine unwinding limit mechanism, comprising a base, a bracket is fixedly installed on the top of the base, an unwinding mechanism is fixedly arranged on the top of the bracket, the rear side of the unwinding mechanism is fixedly connected to a driving mechanism, and a tension sensor is fixedly installed on the top of the base;

[0006] A fixing plate is provided on the top of the base, and a limiting groove one is provided on the front and rear sides of the fixing plate, and a moving block one is movably provided inside the two groups of limiting grooves one, and a mounting block is fixedly installed on the top of the moving block one, and a mounting groove one is provided inside the mounting block, and a fixing block is fixedly installed inside the mounting groove one, and a clamping plate is fixedly installed on one end of the fixing block, and there are two groups of clamping plates, and the two groups of clamping plates are fixedly connected to the conical head, the mounting groove one and the clamping sleeve are threadedly sleeved, the clamping sleeve and the conical head are sleeved, the clamping sleeve and the second knob are fixedly connected, and the second knob and the clamping sleeve are fixedly provided with a mounting groove two.

[0007] As a preferred technical solution of the utility model, two limiting grooves are fixedly provided on the front and rear sides of the base;

[0008] There are two groups of the second limiting grooves, both of which have screw rods rotatably installed inside. The screw rods are threadedly sleeved with the second moving block. There are two groups of the second moving block, both of which are fixedly connected to the fixed plate.

[0009] As a preferred technical solution of the utility model, the second installation groove and the first installation groove are connected to each other, and the interior of the second installation groove and the first installation groove is detachably installed with a fixing rod, there are two groups of the fixing rods, and a reeling rod is rotatably installed between the two groups of the fixing rods.

[0010] As a preferred technical solution of the utility model, a screw rod 1 is rotatably installed inside the two groups of limit grooves 1, the screw rod 1 and the two groups of moving blocks 1 are threadedly connected, and the front end of the screw rod 1 penetrates the outer wall of the fixed plate and is fixedly connected to the knob 1, and the knob 1 is rotatably installed on the outer wall of the fixed plate.

[0011] As a preferred technical solution of the utility model, a shell is fixedly installed on the right side of the base, and gears are rotatably installed on the inner wall of the shell. There are two groups of gears, both of which are fixedly connected to the second screw rod. The two groups of gears are connected by a transmission belt. The front gear is fixedly connected to the output shaft of the motor, and the motor is fixedly installed on the outer wall of the shell.

[0012] As a preferred technical solution of the utility model, the outer surface of the clamping sleeve is provided with threads, the interior of the clamping sleeve is provided with an inner conical inner wall, and the inner conical inner wall and the conical head are sleeved with each other.

[0013] As a preferred technical solution of the utility model, the threads on the front and rear sides of the screw rod 1 are opposite, and the two opposite sets of threads are sleeved with the two sets of threads of the moving block 1.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. The utility model causes the clamping sleeve to move along the inside of the installation groove 1 by rotating the knob 2. At this time, the movement of the clamping sleeve cancels the fastening state of the clamping sleeve on the conical head, further opens the two groups of clamping plates, and then moves the two groups of moving blocks 1 outward by rotating the knob 1, thereby completing the disassembly of the unwinding rod. Compared with the traditional device, the device can fix the fixed rod by rotating the knob 2 through the setting of the knob 1 and the knob 2, and then disassemble the unwinding rod by rotating the knob 1, which not only can quickly replace the unwinding rod, but also can fasten and install the two groups of fixed rods to avoid shaking, improve the printing quality, and explode the replacement efficiency of the staff.

[0016] 2. The utility model rotates the gears through the operation of the motor, and rotates the two sets of screw rods 2 through the transmission of the transmission belt. The rotation of the screw rods 2 drives the moving block 2 to move along the limiting groove 2, and further moves the fixed plate. Compared with the traditional device, the device changes the position of the unwinding rod through the operation of the motor, and cooperates with the monitoring of the tension sensor to keep the tension at a suitable position, effectively reducing the time required for the staff to adjust the tension, and can keep the coil in the best tension state. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a structural schematic diagram of a screw rod of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the clamping sleeve of the utility model;

[0020] Figure 4 This is an exploded schematic diagram of the clamping plate of the utility model;

[0021] Figure 5 This is a schematic diagram of the installation block structure of the utility model;

[0022] Figure 6 This is a schematic diagram of the structure of the fixed plate of the utility model;

[0023] Figure 7 This is a schematic diagram of the second structure of the screw rod of the utility model.

[0024] In the figure: 1. base; 2. bracket; 3. unwinding mechanism; 4. driving mechanism; 5. tension sensor; 6. fixing plate; 7. screw rod 1; 8. limit slot 1; 9. knob 1; 10. moving block 1; 11. mounting block; 12. mounting slot 1; 13. fixing block; 14. clamping plate; 15. conical head; 16. knob 2; 17. clamping sleeve; 18. mounting slot 2; 19. fixing rod; 20. unwinding rod; 21. limit slot 2; 22. screw rod 2; 23. moving block 2; 24. housing; 25. gear; 26. transmission belt; 27. motor. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] like Figures 1 to 7 As shown, the utility model provides an anti-deviating unwinding limit mechanism for a digital printing machine, comprising a base 1, a bracket 2 is fixedly installed on the top of the base 1, an unwinding mechanism 3 is fixedly arranged on the top of the bracket 2, the rear side of the unwinding mechanism 3 is fixedly connected to a driving mechanism 4, and a tension sensor 5 is fixedly installed on the top of the base 1;

[0027] A fixing plate 6 is provided on the top of the base 1, and limiting grooves 8 are provided on the front and rear sides inside the fixing plate 6. A moving block 10 is movably provided inside the two groups of limiting grooves 8. A mounting block 11 is fixedly installed on the top of the moving block 10. A mounting groove 12 is provided inside the mounting block 11. A fixing block 13 is fixedly installed inside the mounting groove 12. A clamping plate 14 is fixedly installed on one end of the fixing block 13. There are two groups of clamping plates 14, and the two groups of clamping plates 14 are fixedly connected with the conical head 15. The mounting groove 12 and the clamping sleeve 17 are threadedly sleeved, the clamping sleeve 17 and the conical head 15 are sleeved, the clamping sleeve 17 and the knob 16 are fixedly connected, and the knob 16 and the clamping sleeve 17 are fixedly provided with mounting grooves 18.

[0028] When the coil needs to be unwound, the staff passes the coil on the surface of the unwinding mechanism 3 through the bottom of the unwinding rod 20, and then through the top of the tension sensor 5. At this time, the staff can start the motor 27 according to the tension monitored by the tension sensor 5. The operation of the motor 27 drives the gear 25 to rotate, and through the transmission of the transmission belt 26, the two sets of screw rods 22 are rotated. The rotation of the screw rods 22 drives the moving block 23 to move along the limiting groove 21, and further moves the fixed plate 6 to complete the adjustment of the coil tension. When the tension is at an appropriate level, the staff starts the driving mechanism 4 to start the unwinding operation of the unwinding mechanism 3. When the unwinding operation is completed, the unwinding rod 20 needs to be replaced. At this time, the staff turns the two sets of knobs 2 16. The rotation of the knobs 2 16 drives the clamping sleeve 17 to rotate. At this time, due to the setting of the thread, the clamping sleeve The tube 17 moves to the outside of the mounting groove 12. At this time, the movement of the clamping sleeve 17 cancels the fastening state of the clamping sleeve 17 on the conical head 15, and further opens the two groups of clamping plates 14. Then the staff can turn the knob 19 to rotate the screw rod 7. The rotation of the screw rod 7 drives the two groups of moving blocks 10 to move relative to each other, so that the distance between the two groups of mounting blocks 11 increases. At this time, the staff can remove the fixing rod 19. When installation is required, the staff will place the replaced unwinding rod 20 between the two groups of mounting blocks 11, and movably install the fixing rod 19 inside the mounting groove 12 through the mounting groove 18, and then reverse the knob 9 to make the two groups of fixing blocks 13 clamp the fixing rod 19. Finally, the staff rotates the knob 2 16 to make the clamping sleeve 17 clamp the conical head 15, and further make the clamping plate 14 clamp the fixing rod 19 to complete the fixation.

[0029] By rotating knob 2 16, the clamping sleeve 17 is displaced along the inside of the mounting groove 12. At this time, the movement of the clamping sleeve 17 cancels the fastening state of the clamping sleeve 17 on the conical head 15, further opening the two groups of clamping plates 14, and then the two groups of moving blocks 10 are moved outward by rotating knob 19, thereby completing the disassembly of the unwinding rod 20. Compared with the traditional device, the device can fix the fixing rod 19 by rotating knob 2 16 through the setting of knob 19 and knob 2 16, and then disassemble the unwinding rod 20 by rotating knob 19, which not only can quickly replace the unwinding rod 20, but also can tighten and install the two groups of fixing rods 19 to avoid shaking, improve printing quality, and increase the replacement efficiency of the staff.

[0030] Among them, the front and rear sides of the base 1 are fixedly provided with a limiting groove 21;

[0031] There are two groups of limiting grooves 21 , both of which have screw rods 22 rotatably installed inside. The screw rods 22 and moving blocks 23 are threadedly sleeved. There are two groups of moving blocks 23 , both of which are fixedly connected to the fixed plate 6 .

[0032] When the motor 27 is in operation, the rotation of the two sets of screw rods 22 drives the moving block 23 to move along the limiting groove 21, further moving the fixing plate 6, thereby completing the adjustment of the coil tension.

[0033] The gear 25 rotates through the operation of the motor 27, and the two sets of screw rods 22 rotate through the transmission of the transmission belt 26. The rotation of the screw rods 22 drives the moving block 23 to move along the limiting groove 21, further moving the fixed plate 6. Compared with the traditional device, the device changes the position of the unwinding rod 20 through the operation of the motor 27, and cooperates with the monitoring of the tension sensor 5 to keep the tension at a suitable position at all times, effectively reducing the time required for the staff to adjust the tension and enabling the coil to be in the best tension state.

[0034] Among them, the second installation groove 18 and the first installation groove 12 are connected to each other, and the interior of the second installation groove 18 and the first installation groove 12 is detachably installed with a fixing rod 19, there are two groups of fixing rods 19, and a reeling rod 20 is rotatably installed between the two groups of fixing rods 19.

[0035] Among them, a screw rod 7 is rotatably installed inside the two groups of limit grooves 8, the screw rod 7 and the two groups of moving blocks 10 are threadedly sleeved, and the front end of the screw rod 7 penetrates the outer wall of the fixed plate 6 and is fixedly connected to the knob 9, which is rotatably installed on the outer wall of the fixed plate 6.

[0036] The staff can turn the knob 9 to rotate the screw rod 7. The rotation of the screw rod 7 drives the two groups of moving blocks 10 to move relative to each other, so that the distance between the two groups of mounting blocks 11 is increased, and the installation and fixation of the unwinding rod 20 is completed.

[0037] Among them, a shell 24 is fixedly installed on the right side of the base 1, and a gear 25 is rotatably installed on the inner wall of the shell 24. There are two groups of gears 25, both of which are fixedly connected to the screw rod 22. The two groups of gears 25 are connected through a transmission belt 26. The front gear 25 is fixedly connected to the output shaft of the motor 27, and the motor 27 is fixedly installed on the outer wall of the shell 24.

[0038] The staff can start the motor 27 according to the tension monitored by the tension sensor 5 , and the operation of the motor 27 drives the gear 25 to rotate, and through the transmission of the transmission belt 26 , the two sets of screw rods 22 rotate.

[0039] The outer surface of the clamping sleeve 17 is provided with threads, the interior of the clamping sleeve 17 is provided with an inner conical inner wall, and the inner conical inner wall and the conical head 15 are sleeved with each other.

[0040] The threads on the surface of the clamping sleeve 17 enable the clamping sleeve 17 to be displaced inside the mounting groove 12 , and the conical head 15 is fixed by the inner conical inner wall of the clamping sleeve 17 .

[0041] The threads on the front and rear sides of the screw rod 7 are opposite, and the two opposite sets of threads are sleeved with the two sets of moving blocks 10.

[0042] The working principle and use process of this utility model:

[0043] When the coil needs to be unwound, the staff passes the coil on the surface of the unwinding mechanism 3 through the bottom of the unwinding rod 20, and then through the top of the tension sensor 5. At this time, the staff can start the motor 27 according to the tension monitored by the tension sensor 5. The operation of the motor 27 drives the gear 25 to rotate, and through the transmission of the transmission belt 26, the two sets of screw rods 22 are rotated. The rotation of the screw rods 22 drives the moving block 23 to move along the limiting groove 21, and further moves the fixed plate 6 to complete the adjustment of the coil tension. When the tension is at an appropriate level, the staff starts the driving mechanism 4 to start the unwinding operation of the unwinding mechanism 3. When the unwinding operation is completed, the unwinding rod 20 needs to be replaced. At this time, the staff turns the two sets of knobs 2 16. The rotation of the knobs 2 16 drives the clamping sleeve 17 to rotate. At this time, due to the setting of the thread, the clamping sleeve The tube 17 moves to the outside of the mounting groove 12. At this time, the movement of the clamping sleeve 17 cancels the fastening state of the clamping sleeve 17 on the conical head 15, and further opens the two groups of clamping plates 14. Then the staff can turn the knob 19 to rotate the screw rod 7. The rotation of the screw rod 7 drives the two groups of moving blocks 10 to move relative to each other, so that the distance between the two groups of mounting blocks 11 increases. At this time, the staff can remove the fixing rod 19. When installation is required, the staff will place the replaced unwinding rod 20 between the two groups of mounting blocks 11, and movably install the fixing rod 19 inside the mounting groove 12 through the mounting groove 18, and then reverse the knob 9 to make the two groups of fixing blocks 13 clamp the fixing rod 19. Finally, the staff rotates the knob 2 16 to make the clamping sleeve 17 clamp the conical head 15, and further make the clamping plate 14 clamp the fixing rod 19 to complete the fixation.

[0044] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-deviation unwinding limit mechanism for a digital printing press, comprising a base (1), characterized in that: A bracket (2) is fixedly mounted on the top of the base (1); a reeling mechanism (3) is fixedly arranged on the top of the bracket (2); the rear side of the reeling mechanism (3) is fixedly connected to a driving mechanism (4); and a tension sensor (5) is fixedly mounted on the top of the base (1); A fixing plate (6) is arranged on the top of the base (1), and limiting grooves (8) are arranged on the front and rear sides of the fixing plate (6), and movable blocks (10) are movably arranged inside the two groups of limiting grooves (8), and a mounting block (11) is fixedly installed on the top of the movable block (10), and a mounting groove (12) is arranged inside the mounting block (11), and a fixing block (13) is fixedly installed inside the mounting groove (12), and the fixing block (13) is fixedly installed inside the fixing groove (12). ) is fixedly mounted with a clamping plate (14) at one end, the clamping plates (14) are in total two groups, and the two groups of clamping plates (14) are fixedly connected to the conical head (15), the mounting groove (12) and the clamping sleeve (17) are threadedly sleeved, the clamping sleeve (17) and the conical head (15) are sleeved, the clamping sleeve (17) and the knob (16) are fixedly connected, and the knob (16) and the clamping sleeve (17) are fixedly provided with a mounting groove (18) inside.

2. The anti-deviation unwinding limit mechanism of a digital printing press according to claim 1, characterized in that: The base (1) is fixedly provided with two limiting grooves (21) on the front and rear sides; There are two groups of the second limiting grooves (21), both of which have screw rods (22) rotatably installed inside. The screw rods (22) and the moving blocks (23) are threadedly sleeved. There are two groups of the moving blocks (23), and both are fixedly connected to the fixed plate (6).

3. The anti-deviation unwinding limit mechanism of a digital printing press according to claim 1, characterized in that: The second installation groove (18) and the first installation groove (12) are connected to each other, and the interiors of the second installation groove (18) and the first installation groove (12) are detachably installed with fixing rods (19), and there are two groups of the fixing rods (19), and an unwinding rod (20) is rotatably installed between the two groups of the fixing rods (19).

4. The anti-deviation unwinding limit mechanism of a digital printing press according to claim 1, characterized in that: A screw rod (7) is rotatably mounted inside the two groups of limit grooves (8); the screw rod (7) and the two groups of moving blocks (10) are threadedly sleeved, and the front end of the screw rod (7) passes through the outer wall of the fixed plate (6) and is fixedly connected to a knob (9); the knob (9) is rotatably mounted on the outer wall of the fixed plate (6).

5. The anti-deviation unwinding limit mechanism of a digital printing press according to claim 2, characterized in that: A housing (24) is fixedly mounted on the right side of the base (1), and a gear (25) is rotatably mounted on the inner wall of the housing (24). There are two groups of gears (25), both of which are fixedly connected to the second screw rod (22). The two groups of gears (25) are connected by transmission belts (26). The front gear (25) is fixedly connected to the output shaft of a motor (27), and the motor (27) is fixedly mounted on the outer wall of the housing (24).

6. The anti-deviation unwinding limit mechanism of a digital printing press according to claim 1, characterized in that: The outer surface of the clamping sleeve (17) is provided with a thread, and the interior of the clamping sleeve (17) is provided with an inner conical inner wall, and the inner conical inner wall and the conical head (15) are sleeved with each other.

7. The anti-deviation unwinding limiting mechanism of a digital printing press according to claim 4, characterized in that: The threads on the front and rear sides of the screw rod 1 (7) are opposite, and the two opposite sets of threads are threadedly connected with the two sets of moving block 1 (10).

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