Self-adaptive winding and unwinding testing device for character printing of printer

Abstract

The invention belongs to the technical field of printer winding and unwinding testing, and particularly relates to a printer character print self-adaptive winding and unwinding testing device which comprises a fixing frame, a mounting block is rotationally mounted on one side of the inner wall of the fixing frame, a winding roller sleeves the mounting block, a through groove is formed in the position, located on one side of the winding roller, of the fixing frame, and a moving block is slidably mounted in the through groove; a clamping groove is formed in one end of the winding roller, a limiting block is rotationally installed on one side of the moving block and located in the clamping groove, and a first motor is fixedly installed on the other side of the moving block. When printing paper is subjected to winding and unwinding testing, the printing paper cannot deviate, it is guaranteed that the two limiting plates can limit the printing paper of different sizes, and therefore the printing paper is not prone to deviation; and the printing paper cannot be loosened, the effect after the printing paper is wound is guaranteed, a worker can conveniently replace the winding roller, other replacement tools are not needed during replacement, and the printing paper winding device is convenient and rapid to use and convenient for the worker to use.

Description

Technical Field

[0001] The present invention belongs to the technical field of printer winding and unwinding testing, and particularly relates to an adaptive winding and unwinding testing device for printer letter printing. Background Technique

[0002] In the fields of printer production, research and development, and quality inspection, the winding and unwinding test of printer letter printing is a crucial link. The performance of the winding and unwinding test device directly affects the effect of the printed paper after winding, and thus is related to the overall printing quality and user experience of the printer. With the continuous development of technology, the types and sizes of printed paper on the market are becoming increasingly diverse, posing higher requirements for the adaptability and stability of the winding and unwinding test device.

[0003] Currently, when the existing printer letter print winding and unwinding test device conducts the winding and unwinding test on the printed paper, most of the traditional limiting structures use limiting plates with fixed spacing, or the adjustment method is complex, and it is difficult to flexibly adjust the spacing between the two limiting plates according to different sizes of printed paper, resulting in the printed paper being prone to deviation during the winding and unwinding process, affecting the accuracy of the test and the quality of the printed paper after winding. When the existing winding and unwinding test device winds the printed paper, due to poor limiting effect, the printed paper is prone to looseness, resulting in problems such as wrinkles and looseness of the wound printed paper, and cannot meet the high-quality winding requirements. In addition, in terms of the replacement of the winding roller, the existing device usually adopts a relatively cumbersome installation structure and requires the assistance of other replacement tools to complete the replacement operation, which not only increases the work difficulty of the operator, but also prolongs the replacement time and is not conducive to the continuous progress of the test work. In view of this, we propose an adaptive winding and unwinding test device for printer letter printing. Summary of the Invention

[0004] The purpose of the present invention is to provide an adaptive winding and unwinding test device for printer letter printing to solve the problems raised in the above background technique.

[0005] In view of this, the present invention provides an adaptive winding and unwinding test device for printer letter printing, including: A fixed frame, on one side of the inner wall of the fixed frame, an installation block is rotatably installed. A winding roller is sleeved on the installation block. A through groove is opened on the fixed frame and on one side of the winding roller. A moving block is slidably installed in the through groove. A clamping groove is opened at one end of the winding roller. A limiting block is rotatably installed in the clamping groove on one side of the moving block. A first motor is fixedly installed on the other side of the moving block. The output end of the first motor penetrates through the moving block and is fixed to the limiting block; A limiting component, which is located inside the fixed frame and is used to fix the moving block; Two sliding grooves, the two sliding grooves are symmetrically arranged on the inner wall of the fixed frame, a lifting plate is slidably installed in the sliding groove, two rotating rods are rotatably installed between the two lifting plates, a circular roller is fixedly installed on the circumferential side of the rotating rod, and a rubber ring is fixedly installed on the circumferential side of the circular roller. A groove is formed in the lifting plate, two sliders are slidably installed in the groove, limiting rods are fixedly installed on the opposite sides of the two sliders, and a same tension spring is fixedly installed between the two sliders. There are two limiting plates between the winding roller and the rotating rod; A driving assembly, the driving assembly is located on the fixed frame and is used to drive one of the lifting plates to move up and down; A power assembly, the power assembly is located in the fixed frame and is used to drive the two limiting plates to approach or move away from each other.

[0006] In the above technical solution, further, the limiting assembly includes: A sliding groove, the sliding groove is formed in the fixed frame and above the moving block, a sliding block is slidably installed in the sliding groove, two limiting holes are formed in the top of the moving block, the bottom end of the sliding block penetrates through the bottom of the sliding groove and extends into one of the limiting holes, and a pull rod is fixedly installed at the top of the sliding block and inside the sliding groove. The top end of the pull rod penetrates through the top of the sliding groove and extends to the outside and is fixedly installed with a handle. A spring is sleeved on the pull rod and inside the sliding groove. Limiting grooves are formed on both sides of the moving block, and circular blocks are fixedly installed on the inner wall of the through groove and inside the two limiting grooves.

[0007] In the above technical solution, further, the bottom end of the sliding block is inserted and matched with the limiting hole, the pull rod is slidably connected with the sliding groove and the fixed frame, the two ends of the spring are tightly welded to the sliding block and the top of the sliding groove respectively, and the circular block is slidably connected with the limiting groove.

[0008] In the above technical solution, further, the driving assembly includes: Two mounting plates, the two mounting plates are both fixedly installed on one side of the fixed frame, a same first threaded rod is rotatably installed between the two mounting plates, a lifting block is threadedly installed on the first threaded rod, one end of the lifting block penetrates through one side of the fixed frame and is fixed to the lifting plate, and a second motor is fixedly installed on the top of one of the mounting plates. The output end of the second motor penetrates through one of the mounting plates and is coaxially connected with the first threaded rod.

[0009] In the above technical solution, further, the lifting block is slidably connected with the fixed frame, and the output shaft of the second motor is rotatably connected with one of the mounting plates.

[0010] In the above technical solution, further, the power assembly includes: A moving groove is formed in the fixed frame and is located below the two limiting plates. Two U-shaped plates are slidably installed in the moving groove. The tops of the two U-shaped plates penetrate through the top of the moving groove and are respectively fixed to the two limiting plates. Two round rods are fixedly installed in the moving groove. One ends of the two round rods penetrate through the two U-shaped plates. A bidirectional threaded rod is rotatably installed in the moving groove between the two round rods. One end of the bidirectional threaded rod penetrates through the two U-shaped plates. An installation groove is formed in the fixed frame and on one side of the moving groove. A third motor is fixedly installed in the installation groove. The output end of the third motor penetrates through one side of the installation groove and is coaxially connected to the bidirectional threaded rod.

[0011] In the above technical solution, further, the bidirectional threaded rod is threadedly connected to the U-shaped plate. The bidirectional threaded rod is provided with two threads with opposite helix directions. The U-shaped plate is slidably connected to the round rod. The output shaft of the third motor is rotatably connected to the fixed frame.

[0012] In the above technical solution, further, it further includes: Two rectangular blocks are both fixedly installed between the two lifting plates. Brush hairs are fixedly installed on the opposite sides of the two rectangular blocks. Both ends of the rotating rod extend into the corresponding sliders. A plurality of damping grooves are formed in the inner wall of the slider. Convex blocks are fixedly installed on the circumference of the rotating rod and located in the plurality of damping grooves.

[0013] In the above technical solution, further, the limiting block is inserted and matched with the card slot. The limiting block has a rectangular structure. The output shaft of the first motor is rotatably connected to the moving block.

[0014] In the above technical solution, further, both of the rubber rings are located between the rectangular block and the moving groove.

[0015] The beneficial effects of the present invention are: 1. For the adaptive winding and unwinding test device of the printer characters, through the arranged power assembly, with the mutual cooperation of the power assembly and the limiting plates, it is ensured that when the printing paper is subjected to the winding and unwinding test, the printing paper will not deviate. By adjusting the distance between the two limiting plates, it is ensured that the two limiting plates can limit printing papers of different sizes.

[0016] 2. For the adaptive winding and unwinding test device of the printer characters, through the arranged driving assembly, with the mutual cooperation of the driving assembly, the lifting plate, the round roller, the tension spring, the rubber ring, the first motor, the limiting block, the card slot and the winding roller, it is ensured that when the printing paper is subjected to the winding and unwinding test, the printing paper will not become loose, and the effect after the printing paper is wound is guaranteed.

[0017] 3. The adaptive winding and unwinding test device for the printer characters can ensure the convenience for personnel to replace the winding roller through the arranged limiting components and the mutual cooperation of the limiting components, moving blocks, limiting blocks, card slots, winding rollers and mounting blocks. Moreover, no other replacement tools are needed during the replacement, which is relatively convenient and fast and easy for personnel to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the overall structural schematic diagram of the present invention; Figure 2 is the detailed internal structural schematic diagram of the moving block in the present invention; Figure 3 is the present invention Figure 2 the enlarged structural schematic diagram at A in; Figure 4 is the regional structural schematic diagram of the moving block in the present invention; Figure 5 is the detailed internal structural schematic diagram of the lifting plate in the present invention; Figure 6 is the sectional structural schematic diagram of the slider in the present invention; Figure 7 is the structural schematic diagram of the slider in the present invention; Figure 8 is the regional structural schematic diagram of the rectangular block in the present invention; Figure 9 is the regional structural schematic diagram of the moving groove in the present invention; Figure 10 is the structural schematic diagram of the fixing frame in the present invention; Figure 11 is the structural schematic diagram of the winding roller in the present invention.

[0019] The labels in the figure are represented as: 1, fixing frame; 2, mounting block; 3, winding roller; 4, through groove; 5, moving block; 6, card slot; 7, limiting block; 8, first motor; 9, sliding groove; 10, sliding block; 11, limiting hole; 12, pull rod; 13, handle; 14, spring; 15, limiting groove; 16, round block; 17, chute; 18, lifting plate; 19, rotating rod; 20, round roller; 21, rubber ring; 22, groove; 23, slider; 24, limiting rod; 25, tension spring; 26, damping groove; 27, convex block; 28, mounting plate; 29, first threaded rod; 30, lifting block; 31, second motor; 32, moving groove; 33, U-shaped plate; 34, limiting plate; 35, round rod; 36, bidirectional threaded rod; 37, mounting groove; 38, third motor; 39, rectangular block; 40, brush hair. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Next, the technical solutions in the embodiments of the present application will be clearly described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0021] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments of the present application. For the convenience of description, the sizes of the various parts shown in the drawings are not drawn in actual proportional relationship. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the said technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0022] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such used data may be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally of the same category, and do not limit the number of objects. For example, the first object may be one or multiple. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / " generally means an "or" relationship between the associated objects before and after.

[0023] It should be noted that in the description of the present application, the orientation or positional relationships indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Without contrary description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus cannot be understood as a limitation on the protection scope of the present application; the orientation words "inside, outside" refer to the inside and outside relative to the outline of each component itself.

[0024] It should be noted that in this application, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article or device comprising that element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of this application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0025] Embodiment 1: Please refer to Figure 1 - Figure 11 as shown, this embodiment provides an adaptive winding and unwinding test device for printer letterpress, including: A fixing frame 1, on one side of the inner wall of the fixing frame 1, a mounting block 2 is rotatably installed. A winding roller 3 is sleeved on the mounting block 2. A through groove 4 is opened on the fixing frame 1 and on one side of the winding roller 3. A moving block 5 is slidably installed in the through groove 4. A clamping groove 6 is opened at one end of the winding roller 3. A limiting block 7 is rotatably installed in the clamping groove 6 on one side of the moving block 5. On the other side of the moving block 5, a first motor 8 is fixedly installed. The output end of the first motor 8 penetrates through the moving block 5 and is fixed to the limiting block 7; A limiting component, which is located inside the fixing frame 1 and is used to fix the moving block 5; Two sliding grooves 17 are symmetrically opened on the inner wall of the fixing frame 1. A lifting plate 18 is slidably installed in the sliding grooves 17. Two rotating rods 19 are rotatably installed between the two lifting plates 18. A circular roller 20 is fixedly installed on the circumferential side of the rotating rod 19. A rubber ring 21 is fixedly installed on the circumferential side of the circular roller 20. A groove 22 is opened in the lifting plate 18. Two sliders 23 are slidably installed in the groove 22. On the opposite sides of the two sliders 23, a limiting rod 24 is fixedly installed. A same tension spring 25 is fixedly installed between the two sliders 23. There are two limiting plates 34 between the winding roller 3 and the rotating rod 19; A driving component, which is located on the fixing frame 1 and is used to drive one of the lifting plates 18 to move up and down; A power component, which is located inside the fixing frame 1 and is used to drive the two limiting plates 34 to approach or separate from each other.

[0026] Among them, during use, the operator can drive the two limiting plates 34 to approach each other through the power assembly until the opposite sides of the two limiting plates 34 abut against both sides of the printing paper, and then stop moving the two limiting plates 34. At this time, the two limiting plates 34 can limit both sides of the printing paper to ensure that the printing paper does not shift during the winding and unwinding test of the printing paper. By adjusting the distance between the two limiting plates 34, it is ensured that the two limiting plates 34 can limit printing papers of different sizes; Subsequently, the operator can drive one of the lifting plates 18 to move through the driving assembly. The movement of one of the lifting plates 18 will drive the two circular rollers 20 to move. Under the action of the pulling force of the two tension springs 25, the two tension springs 25 can make the two circular rollers 20 clamp the printing paper. At the same time, under the action of the frictional force of the two rubber rings 21, the printing paper can be clamped more firmly. The movement of the two circular rollers 20 will drive the printing paper to move, thereby tightening the printing paper. Then, start the first motor 8. The output shaft of the first motor 8 will drive the limiting block 7 to rotate. The rotation of the limiting block 7 will drive the winding roller 3 to rotate through the card slot 6. The rotation of the winding roller 3 can perform the winding and unwinding test on the printing paper to ensure that the printing paper will not become loose during the winding and unwinding test and ensure the effect after the printing paper is wound; When the winding roller 3 is full of printing paper, the operator can release the limit on the moving block 5 through the limit assembly. The operator can move the moving block 5. The movement of the moving block 5 will drive the limiting block 7 to move until the limiting block 7 moves out of the card slot 6. At this time, the limiting block 7 can release the limit on the winding roller 3. At this time, the limit assembly can limit the moving block 5. Subsequently, the operator can remove the winding roller 3 from the mounting block 2 and replace it, ensuring that it is convenient for the operator to replace the winding roller 3 and no other replacement tools are required during replacement, which is relatively convenient and fast and convenient for the operator to use.

[0027] Embodiment 2: This embodiment provides an adaptive winding and unwinding test device for printer letter printing. In addition to including the technical solutions of the above embodiment, it also has the following technical features. The limit assembly includes: A sliding groove 9 is opened in the fixed frame 1 and is located above the moving block 5. A sliding block 10 is slidably installed in the sliding groove 9. Two limiting holes 11 are opened at the top of the moving block 5. The bottom end of the sliding block 10 penetrates through the bottom of the sliding groove 9 and extends into one of the limiting holes 11. A pull rod 12 is fixedly installed at the top of the sliding block 10 and located in the sliding groove 9. The top end of the pull rod 12 penetrates through the top of the sliding groove 9 and extends to the outside and is fixedly installed with a handle 13. A spring 14 is sleeved on the pull rod 12 and located in the sliding groove 9. Limiting grooves 15 are opened on both sides of the moving block 5. Circular blocks 16 are fixedly installed on the inner wall of the through groove 4 and located in the two limiting grooves 15.

[0028] Among them, when the take-up roller 3 is full of printing paper, the operator can pull up the handle 13. When the handle 13 moves upward, it will drive the pull rod 12 to move upward. When the pull rod 12 moves upward, it will drive the sliding block 10 to move upward. When the sliding block 10 moves upward, it will squeeze the spring 14 to contract. Until the bottom end of the sliding block 10 moves out of one of the limiting holes 11, at this time, the sliding block 10 can release the limit on the moving block 5, and the operator can move the moving block 5. When the moving block 5 moves, it will drive the limiting block 7 to move. Until the limiting block 7 moves out of the clamping groove 6, at this time, the limiting block 7 can release the limit on the take-up roller 3. Then release the pull on the handle 13. Under the action of the elastic force of the spring 14, the spring 14 will squeeze the sliding block 10 to move downward until the bottom end of the sliding block 10 is inserted into another limiting hole 11. At this time, the sliding block 10 can limit the moving block 5. At the same time, when the moving block 5 moves, the two limiting grooves 15 will slide on the two round blocks 16 respectively. Under the limiting action of the limiting grooves 15 of the round blocks 16, it can prevent the moving block 5 from falling off the through groove 4. Then the operator can remove the take-up roller 3 from the mounting block 2 and replace it, ensuring that it is convenient for the operator to replace the take-up roller 3, and no other replacement tools are needed during replacement, which is relatively convenient and fast and convenient for the operator to use.

[0029] Embodiment 3: This embodiment provides an adaptive take-up and pay-off test device for printer letterpress. In addition to including the technical solutions of the above embodiments, it also has the following technical features: The bottom end of the sliding block 10 is inserted and matched with the limiting hole 11. The pull rod 12 is slidably connected to the sliding groove 9 and the fixed frame 1. The two ends of the spring 14 are tightly welded to the sliding block 10 and the top of the sliding groove 9 respectively. The round block 16 is slidably connected to the limiting groove 15.

[0030] Among them, ensure that the bottom end of the sliding block 10 can be inserted into the limiting hole 11, ensure that the pull rod 12 can slide normally in the sliding groove 9 and the fixed frame 1, ensure the structural stability of the spring 14, and ensure that the round block 16 can slide normally in the limiting groove 15.

[0031] Embodiment 4: This embodiment provides an adaptive take-up and pay-off test device for printer letterpress. In addition to including the technical solutions of the above embodiments, it also has the following technical features: The driving assembly includes: Two mounting plates 28, both of the two mounting plates 28 are fixedly installed on one side of the fixed frame 1. A same threaded rod one 29 is rotatably installed between the two mounting plates 28. A lifting block 30 is threadedly installed on the threaded rod one 29. One end of the lifting block 30 penetrates through one side of the fixed frame 1 and is fixed to the lifting plate 18. The top of one of the mounting plates 28 is fixedly installed with a second motor 31. The output end of the second motor 31 penetrates through one of the mounting plates 28 and is coaxially connected to the threaded rod one 29.

[0032] Among them, the personnel can start the second motor 31, and the output shaft of the second motor 31 will drive the first threaded rod 29 to rotate. Under the action of the thread, the rotation of the first threaded rod 29 will drive the lifting block 30 to move. The movement of the lifting block 30 will drive one of the lifting plates 18 to move. The movement of one of the lifting plates 18 will drive the two round rollers 20 to move. Under the action of the pulling force of the two tension springs 25, the two tension springs 25 can make the two round rollers 20 clamp the printing paper. At the same time, under the action of the frictional force of the two rubber rings 21, the printing paper can be clamped more firmly. The movement of the two round rollers 20 will drive the printing paper to move, so as to tighten the printing paper. Then start the first motor 8, and the output shaft of the first motor 8 will drive the limit block 7 to rotate. The rotation of the limit block 7 will drive the winding roller 3 to rotate through the card slot 6. The rotation of the winding roller 3 can perform the winding and unwinding test on the printing paper to ensure that the printing paper will not loosen during the winding and unwinding test and ensure the effect after the printing paper is wound.

[0033] Embodiment 5: This embodiment provides an adaptive winding and unwinding test device for printer characters. In addition to including the technical solutions of the above embodiments, it also has the following technical features: the lifting block 30 is slidably connected to the fixed frame 1, and the output shaft of the second motor 31 is rotatably connected to one of the mounting plates 28.

[0034] Among them, it is ensured that the lifting block 30 can slide normally within the fixed frame 1, and it is ensured that the output shaft of the second motor 31 can rotate normally within the mounting plate 28.

[0035] Embodiment 6: This embodiment provides an adaptive winding and unwinding test device for printer characters. In addition to including the technical solutions of the above embodiments, it also has the following technical features: the power assembly includes: A moving groove 32 is opened in the fixed frame 1 and is located below the two limiting plates 34. Two U-shaped plates 33 are slidably installed in the moving groove 32. The tops of the two U-shaped plates 33 both penetrate the top of the moving groove 32 and are respectively fixed to the two limiting plates 34. Two round rods 35 are fixedly installed in the moving groove 32. One end of each of the two round rods 35 penetrates the two U-shaped plates 33. A bidirectional threaded rod 36 is rotatably installed in the moving groove 32 and between the two round rods 35. One end of the bidirectional threaded rod 36 penetrates the two U-shaped plates 33. An installation groove 37 is opened on one side of the fixed frame 1 and within the moving groove 32. A third motor 38 is fixedly installed in the installation groove 37. The output end of the third motor 38 penetrates one side of the installation groove 37 and is coaxially connected to the bidirectional threaded rod 36.

[0036] Among them, when the third motor 38 is started, the output shaft of the third motor 38 will drive the bidirectional threaded rod 36 to rotate. Under the action of the thread, the rotation of the bidirectional threaded rod 36 will drive two U-shaped plates 33 to approach each other. The mutual approach of the two U-shaped plates 33 will drive two limiting plates 34 to approach each other until the opposite sides of the two limiting plates 34 abut against both sides of the printing paper. Then, the movement of the two limiting plates 34 is stopped. At this time, the two limiting plates 34 can limit both sides of the printing paper, ensuring that the printing paper will not shift during the winding and unwinding test of the printing paper. By adjusting the distance between the two limiting plates 34, it is ensured that the two limiting plates 34 can limit printing papers of different sizes.

[0037] Embodiment 7: This embodiment provides an adaptive winding and unwinding test device for printer characters. In addition to including the technical solutions of the above embodiments, it also has the following technical features. The bidirectional threaded rod 36 is threadedly connected to the U-shaped plate 33. The bidirectional threaded rod 36 is provided with two threads with opposite helix directions. The U-shaped plate 33 is slidably connected to the round rod 35. The output shaft of the third motor 38 is rotatably connected to the fixed frame 1.

[0038] Among them, it is ensured that the rotation of the bidirectional threaded rod 36 can drive the two U-shaped plates 33 to approach or move away from each other, ensuring that the U-shaped plate 33 can slide normally on the round rod 35, and ensuring that the output shaft of the third motor 38 can rotate normally within the fixed frame 1.

[0039] Embodiment 8: This embodiment provides an adaptive winding and unwinding test device for printer characters. In addition to including the technical solutions of the above embodiments, it also has the following technical features. It further includes: Two rectangular blocks 39. Both of the two rectangular blocks 39 are fixedly installed between the two lifting plates 18. Brush hairs 40 are fixedly installed on the opposite sides of the two rectangular blocks 39. Both ends of the rotating rod 19 extend into the corresponding sliders 23. A number of damping grooves 26 are formed in the inner wall of the slider 23. Protrusions 27 are fixedly installed on the circumferential side of the rotating rod 19 and located within a number of damping grooves 26.

[0040] Among them, when the printing paper is undergoing the winding and unwinding test, the two brush hairs 40 can sweep off the dust adhering to the surface of the printing paper, ensuring that the dust will not affect the printing effect. When the printing paper is moving, the brush hairs 40 will drive the two rotating rods 19 to rotate. The rotation of the rotating rod 19 will drive a number of protrusions 27 to rotate. At this time, a number of protrusions 27 will deform. With the mutual cooperation of a number of protrusions 27 and a number of damping grooves 26, it is ensured that the two rotating rods 19 have a damping effect during rotation, avoiding the loosening of the printing paper.

[0041] Embodiment 9: This embodiment provides an adaptive unwind and rewind test device for printer letterpress. In addition to including the technical solutions of the above embodiments, it also has the following technical features. The limiting block 7 is inserted and matched with the card slot 6. The limiting block 7 has a rectangular structure. The output shaft of the first motor 8 is rotatably connected to the moving block 5.

[0042] Among them, it is ensured that the limiting block 7 can be inserted into the card slot 6, and it is guaranteed that the rotation of the limiting block 7 can drive the winding roller 3 to rotate, and it is ensured that the output shaft of the first motor 8 can rotate normally within the moving block 5.

[0043] Embodiment 10: This embodiment provides an adaptive unwind and rewind test device for printer letterpress. In addition to including the technical solutions of the above embodiments, it also has the following technical features. Both rubber rings 21 are located between the rectangular block 39 and the moving groove 32.

[0044] Among them, the structure stability of both rubber rings 21 is ensured.

[0045] In addition, when the device is running, the high-speed rotation of the winding roller 3 driven by the first motor 8 may generate vibrations. The spring 14 forms an elastic connection between the sliding block 10 and the top of the sliding groove 9, which can absorb the displacement fluctuations generated by the vibration of the moving block 5, avoid the rigid collision between the limiting block 7 and the card slot 6, thereby reducing the eccentric sway when the winding roller 3 rotates, making the winding of the printing paper more uniform, reducing the wear of mechanical components caused by vibration, and prolonging the service life of the device. When the limiting grooves 15 on both sides of the moving block 5 slide on the round block 16, a micro-damping is formed by the fitting clearance, which can suppress the lateral swing of the moving block 5. Especially when the diameter of the winding roller 3 gradually increases (printing paper is wound), it can stabilize the axial position of the moving block 5 and prevent the edge of the printing paper from shifting, thereby playing a role of guiding and damping by the round block 16 and the limiting grooves 15.

[0046] Two limiting holes 11 are provided at the top of the moving block 5. When the sliding block 10 is inserted into different hole positions, the axial position of the moving block 5 in the through groove 4 can be accurately limited. This design ensures that the insertion depth of the limiting block 7 into the card slot 6 is consistent, avoids the axis offset of the winding roller 3 caused by installation errors, thereby ensuring the coaxiality of the winding roller 3 and the rotating rod 19, preventing the appearance of the "taper" phenomenon when the printing paper is wound, making the clamping force of the rubber ring 21 on the printing paper evenly distributed, and improving the tensioning effect. After the sliding block 10 is inserted into the limiting hole 11, its bottom end forms a rigid connection with the moving block 5, which can resist the axial tension (printing paper winding tension) generated when the winding roller 3 rotates, avoid the loosening of the limiting block 7 from the card slot 6 due to the rearward movement of the moving block 5 under force, and ensure the stability of power transmission during the winding process.

[0047] Secondly, after releasing the handle 13, the spring 14 pushes the sliding block 10 to automatically insert into the limiting hole 11, forming a "tool-free locking" mechanism. This design can prevent accidental detachment caused by forgetting to lock the moving block 5 when personnel replace the winding roller, and at the same time avoid the loosening of the sliding block 10 due to vibration during the operation of the device, improving the operation safety. The cooperation between the limiting groove 15 and the round block 16 not only prevents the moving block 5 from falling off the through groove 4, but also limits its maximum displacement during the sliding process of the moving block 5, avoiding mechanical collision caused by the excessive movement of the limiting block 7 out of the clamping groove 6 and protecting the structural integrity of the clamping groove 6 and the limiting block 7. Thus, the limiting component comprehensively plays the roles of dynamic buffering and vibration suppression, precise positioning for coaxiality maintenance, and improvement of safety protection.

[0048] Secondly, the cooperation between the limiting component and the power component can also ensure the stable positioning of the moving block 5. When the power component (the third motor 38 drives the limiting plate 34) is adjusted, the axis position of the winding roller 3 remains unchanged, thereby ensuring the alignment accuracy between the limiting plate 34 and the edge of the printing paper and avoiding the limiting deviation caused by the displacement of the moving block 5. The cooperation between the limiting component and the driving component can prevent the axis of the winding roller 3 from tilting when the driving component (the second motor 31) adjusts the height of the lifting plate 18, ensuring the uniform clamping force of the rubber ring 21 on the printing paper and improving the tension control effect due to the stable positioning of the moving block 5.

[0049] Working principle: During use, personnel can first pass one end of the printing paper through between the two brush hairs 40, between the two round rollers 20, and between the two limiting plates 34 in sequence and fix it on the winding roller 3. Subsequently, personnel can start the third motor 38, and the output shaft of the third motor 38 will drive the bidirectional threaded rod 36 to rotate. Under the action of the thread, the rotation of the bidirectional threaded rod 36 will drive the two U-shaped plates 33 to approach each other. The approaching of the two U-shaped plates 33 will drive the two limiting plates 34 to approach each other until the opposite sides of the two limiting plates 34 abut against both sides of the printing paper, and then stop moving the two limiting plates 34. At this time, the two limiting plates 34 can limit both sides of the printing paper, ensuring that the printing paper will not shift during the winding and unwinding test of the printing paper. By adjusting the distance between the two limiting plates 34, it is ensured that the two limiting plates 34 can limit printing papers of different sizes; Subsequently, the operator can start the second motor 31. The output shaft of the second motor 31 will drive the first threaded rod 29 to rotate. Under the action of the thread, the rotation of the first threaded rod 29 will drive the lifting block 30 to move. The movement of the lifting block 30 will drive one of the lifting plates 18 to move. The movement of one of the lifting plates 18 will drive the two round rollers 20 to move. Under the action of the pulling force of the two tension springs 25, the two tension springs 25 can make the two round rollers 20 clamp the printing paper. At the same time, under the action of the frictional force of the two rubber rings 21, the printing paper can be clamped more firmly. The movement of the two round rollers 20 will drive the printing paper to move, thereby tightening the printing paper. Then start the first motor 8. The output shaft of the first motor 8 will drive the limiting block 7 to rotate. The rotation of the limiting block 7 will drive the winding roller 3 to rotate through the card slot 6. The rotation of the winding roller 3 can perform the winding and unwinding test of the printing paper to ensure that the printing paper will not loosen during the winding and unwinding test and guarantee the effect after the printing paper is wound; When the winding roller 3 is full of printing paper, the operator can pull up the handle 13. The upward movement of the handle 13 will drive the pull rod 12 to move upward. The upward movement of the pull rod 12 will drive the sliding block 10 to move upward. The upward movement of the sliding block 10 will squeeze the spring 14 to contract until the bottom end of the sliding block 10 moves out of one of the limiting holes 11. At this time, the sliding block 10 can release the limit on the moving block 5. The operator can move the moving block 5. The movement of the moving block 5 will drive the limiting block 7 to move until the limiting block 7 moves out of the card slot 6. At this time, the limiting block 7 can release the limit on the winding roller 3. Then release the pulling of the handle 13. Under the action of the rebounding force of the spring 14, the spring 14 will squeeze the sliding block 10 to move downward until the bottom end of the sliding block 10 is inserted into another limiting hole 11. At this time, the sliding block 10 can limit the moving block 5. At the same time, when the moving block 5 moves, the two limiting grooves 15 will slide on the two round blocks 16 respectively. Under the limiting action of the limiting grooves 15 of the round blocks 16, it can be avoided that the moving block 5 falls off from the through groove 4. Subsequently, the operator can remove the winding roller 3 from the mounting block 2 and replace it to ensure that it is convenient for the operator to replace the winding roller 3 and no other replacement tools are needed during the replacement, which is relatively convenient and fast and convenient for the operator to use.

[0050] The embodiments of the present application have been described above in conjunction with the accompanying drawings. Without conflict, the embodiments and the features in the embodiments in the present application can be combined with each other. The present application is not limited to the above specific embodiments. The above specific embodiments are only illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all belong to the protection scope of the present application.

Claims

1. An adaptive winding and unwinding test device for printer characters, characterized in that Comprising: A fixing frame (1), on one side of the inner wall of the fixing frame (1), a mounting block (2) is rotatably installed. A winding roller (3) is sleeved on the mounting block (2). A through groove (4) is formed on the fixing frame (1) and on one side of the winding roller (3). A moving block (5) is slidably installed in the through groove (4). A clamping groove (6) is formed at one end of the winding roller (3). A limiting block (7) is rotatably installed on one side of the moving block (5) and within the clamping groove (6). On the other side of the moving block (5), a first motor (8) is fixedly installed. The output end of the first motor (8) penetrates through the moving block (5) and is fixed to the limiting block (7); A limiting component, which is located within the fixing frame (1) and is used to fix the moving block (5); Two sliding grooves (17), the two sliding grooves (17) are symmetrically formed on the inner wall of the fixing frame (1). An elevating plate (18) is slidably installed in the sliding grooves (17). Two rotating rods (19) are rotatably installed between the two elevating plates (18). A circular roller (20) is fixedly installed on the circumferential side of the rotating rod (19). A rubber ring (21) is fixedly installed on the circumferential side of the circular roller (20). A groove (22) is formed in the elevating plate (18). Two sliders (23) are slidably installed in the groove (22). Limiting rods (24) are fixedly installed on the opposite sides of the two sliders (23). A same tension spring (25) is fixedly installed between the two sliders (23). There are two limiting plates (34) between the winding roller (3) and the rotating rod (19); A driving component, which is located on the fixing frame (1) and is used to drive one of the elevating plates (18) to move up and down; A power component, which is located within the fixing frame (1) and is used to drive the two limiting plates (34) to approach or move away from each other.

2. The adaptive winding and unwinding test device for printer characters according to claim 1, characterized in that, The limiting component includes: A sliding groove (9), the sliding groove (9) is formed within the fixing frame (1) and above the moving block (5). A sliding block (10) is slidably installed in the sliding groove (9). Two limiting holes (11) are formed at the top of the moving block (5). The bottom end of the sliding block (10) penetrates through the bottom of the sliding groove (9) and extends into one of the limiting holes (11). A pull rod (12) is fixedly installed at the top of the sliding block (10) and within the sliding groove (9). The top end of the pull rod (12) penetrates through the top of the sliding groove (9) and extends to the outside and is fixedly installed with a handle (13). A spring (14) is sleeved on the pull rod (12) and within the sliding groove (9). Limiting grooves (15) are formed on both sides of the moving block (5). Circular blocks (16) are fixedly installed on the inner wall of the through groove (4) and within the two limiting grooves (15).

3. An adaptive winding and unwinding test device for printer characters according to claim 2, characterized in that, The bottom end of the sliding block (10) is inserted and matched with the limiting hole (11). The pull rod (12) is slidably connected to the sliding groove (9) and the fixing frame (1). The two ends of the spring (14) are tightly welded to the sliding block (10) and the top of the sliding groove (9) respectively. The round block (16) is slidably connected to the limiting groove (15).

4. An adaptive unwinding and rewinding test device for printer characters, according to claim 1, characterized in that The driving assembly includes: Two mounting plates (28). Both of the two mounting plates (28) are fixedly mounted on one side of the fixing frame (1). The same first threaded rod (29) is rotatably mounted between the two mounting plates (28). A lifting block (30) is threadedly mounted on the first threaded rod (29). One end of the lifting block (30) penetrates through one side of the fixing frame (1) and is fixed to the lifting plate (18). A second motor (31) is fixedly mounted on the top of one of the mounting plates (28). The output end of the second motor (31) penetrates through one of the mounting plates (28) and is coaxially connected to the first threaded rod (29).

5. An adaptive winding and unwinding test device for printer characters according to claim 4, characterized in that The lifting block (30) is slidably connected to the fixing frame (1). The output shaft of the second motor (31) is rotatably connected to one of the mounting plates (28).

6. The adaptive winding and unwinding test device for printer characters according to claim 1, wherein, The power assembly includes: A moving groove (32). The moving groove (32) is formed in the fixing frame (1) and is located below the two limiting plates (34). Two U-shaped plates (33) are slidably mounted in the moving groove (32). The top ends of the two U-shaped plates (33) both penetrate through the top of the moving groove (32) and are respectively fixed to the two limiting plates (34). Two round rods (35) are fixedly mounted in the moving groove (32). One end of each of the two round rods (35) penetrates through the two U-shaped plates (33). A bidirectional threaded rod (36) is rotatably mounted in the moving groove (32) and between the two round rods (35). One end of the bidirectional threaded rod (36) penetrates through the two U-shaped plates (33). An installation groove (37) is formed in the fixing frame (1) and on one side of the moving groove (32). A third motor (38) is fixedly mounted in the installation groove (37). The output end of the third motor (38) penetrates through one side of the installation groove (37) and is coaxially connected to the bidirectional threaded rod (36).

7. An adaptive winding and unwinding test device for printer characters according to claim 6, characterized in that, The bidirectional threaded rod (36) is threadedly connected to the U-shaped plate (33). The bidirectional threaded rod (36) is provided with two threads with opposite helix directions. The U-shaped plate (33) is slidably connected to the round rod (35). The output shaft of the third motor (38) is rotatably connected to the fixing frame (1).

8. An adaptive winding and unwinding test device for printer characters according to claim 1, characterized in that, It further includes: Two rectangular blocks (39). Both of the two rectangular blocks (39) are fixedly mounted between the two lifting plates (18). Brush hairs (40) are fixedly mounted on the opposite sides of the two rectangular blocks (39). The two ends of the rotating rod (19) extend into the corresponding sliders (23). A plurality of damping grooves (26) are formed in the inner wall of the slider (23). Protrusions (27) are fixedly mounted on the circumferential side of the rotating rod (19) and in the plurality of damping grooves (26).

9. An adaptive winding and unwinding test device for printer characters according to claim 1, characterized in that The limiting block (7) is inserted and matched with the clamping groove (6). The limiting block (7) has a rectangular structure. The output shaft of the first motor (8) is rotatably connected to the moving block (5).

10. An adaptive winding and unwinding test device for printer characters, according to claim 1, characterized in that Both of the two rubber rings (21) are located between the rectangular block (39) and the moving groove (32).

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