Rewinding mechanism of thermo-sensitive paper slitting machine

Abstract

The invention relates to the technical field of thermo-sensitive paper production and processing, in particular to a rewinding mechanism of a thermo-sensitive paper slitting machine, which comprises a slitting machine body, a rewinding frame is fixedly mounted on one side of the slitting machine body, and a tensioning assembly for tensioning thermo-sensitive paper is arranged on one side of the rewinding frame; the rotating shaft is rotationally installed on the rewinding frame, and the rotating shaft is provided with a rolling-out assembly used for preventing the thermo-sensitive paper from wrinkling and a winding assembly used for fixing the winding drum; the power assembly is located on one side of the slitting machine body and used for driving the rotating shaft to rotate; the linkage plate drives the butt joint, the extension plate and the moving plate to move in the control groove, so that the sleeve rods on the two sides of the winding roller are driven to synchronously get close to and get away from each other, winding barrels with different diameters can be fixed to the winding roller through the two sleeve rods, in the process of adjusting the distance between the sleeve rods, only a rotating handle needs to be rotated by a person, and the labor intensity of workers is reduced. And the influence on the production efficiency of the thermo-sensitive paper due to the fact that much time is occupied is avoided.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of heat-sensitive paper production and processing, and particularly relates to a rewinding mechanism of a heat-sensitive paper slitting machine. BACKGROUND

[0002] The heat-sensitive paper slitting machine is a core special equipment in heat-sensitive paper production and processing, and is used for accurately slitting a wide heat-sensitive paper roll into a narrow roll or a specified specification single sheet. The equipment is usually composed of a rack, a unwinding mechanism, a tension adjusting system, a slitting mechanism and a winding mechanism, which are arranged in sequence according to the running direction of the heat-sensitive paper, so as to realize automatic continuous processing. The working process is that the original paper is released by the unwinding roller, stably conveyed through the guide roller and the tension mechanism, slitted by the adjustable cutting knife, and finally wound into qualified products by the winding mechanism. The equipment integrates PLC control and variable frequency speed regulation technology, and the slitting precision can reach ±0.1mm, which is suitable for different thicknesses of heat-sensitive paper of 40-400gsm, and the slitting width and length can be flexibly set. Some models are equipped with quick release components, automatic dust collection and edge processing devices, which take into account the operation convenience and processing cleanliness, and are widely used in the large-scale production of heat-sensitive paper products such as cash register paper, logistics labels and medical record paper.

[0003] The rewinding mechanism is essential in the use of the traditional slitting machine, which functions to wind the processed heat-sensitive paper onto the winding drum, thereby facilitating subsequent centralized processing of each batch of heat-sensitive paper by personnel. However, the rewinding mechanism of the traditional slitting machine can only fix a specified size of winding drum during use, and when a winding drum of other diameter needs to be fixed, the corresponding size of clamp needs to be replaced. This process of replacing the clamp often consumes a lot of time, thereby affecting the production efficiency of heat-sensitive paper. SUMMARY

[0004] The present application provides a rewinding mechanism of a heat-sensitive paper slitting machine to solve the existing problems.

[0005] The present application provides a rewinding mechanism of a heat-sensitive paper slitting machine, comprising: A slitting machine body, a rewinding frame is fixedly installed on one side of the slitting machine body, and a tensioning assembly for tensioning the heat-sensitive paper is arranged on one side of the rewinding frame; A rotating shaft is rotatably installed on the rewinding frame, and a flattening assembly for preventing the heat-sensitive paper from wrinkling and a winding assembly for fixing the winding drum are arranged on the rotating shaft; A power assembly is located on one side of the slitting machine body and used to drive the rotating shaft to rotate.

[0006] Further, the personnel will wrap the winding drum for winding on the two sleeve rods, then the personnel controls the servo motor, the output end of the servo motor will drive the rotating shaft to rotate half a circle, the rotating shaft will synchronously drive the fixed box and the two connecting frames, the power motor, the winding roller and the two sleeve rods to synchronously rotate, then the personnel will pass the thermal paper through the processing of the slitting machine body, and then fix one end of the thermal paper from the upper tension roller one to the lower tension roller two, then fix it on the winding drum, then the personnel will start the power motor, the output end of the power motor will drive the winding roller to continuously rotate, the winding roller will drive the two sleeve rods to synchronously rotate, and then drive the winding drum on the sleeve rod to synchronously rotate, at this time the thermal paper will be continuously wound on the winding drum, at the same time, one side of the flattening roller will continuously contact with the thermal paper, so as to ensure that there is no wrinkle on the thermal paper, during this period, the personnel can wrap the next required winding drum on the other idle sleeve rod in the same way, when it is necessary to adjust the distance between the sleeve rods to adapt to the inner wall of the winding drum, the personnel will rotate the rotating handle, the rotating handle will drive the screw to rotate, under the action of the screw thread, the two moving blocks will continuously and synchronously move along the control groove, at the same time, the moving block will drive the moving plate to move in the control groove through the linkage plate and the butt joint, the moving plate will synchronously drive the extension plate and the sleeve rod to synchronously move, until the distance between the two sleeve rods is adjusted to adapt to the inner wall diameter of the winding drum, stop rotating the rotating handle, when the thermal paper on one of the winding drums is wound up, the personnel controls the servo motor, the servo motor will drive the winding drums on the two sleeve rods to exchange positions, at this time the personnel can fix the thermal paper on the winding drum and continuously wind the thermal paper in the same steps.

[0007] Preferably, the tensioning assembly comprises: Two adjusting columns, both of the adjusting columns are rotationally installed in the rewinding frame, and a same tensioning frame is arranged on the two adjusting columns, two side plates are fixedly installed at the bottom of the tensioning frame, and a tension roller two is rotationally installed between the two side plates. Two top blocks, both of the top blocks are fixedly installed at the top of the rewinding frame and above the adjusting columns, and a same tension roller one is rotationally installed between the two top blocks; by cooperation of the tension roller one and the side plates, the thermal paper can be kept in a tight state during winding, so as to avoid that the loose thermal paper affects the winding quality.

[0008] Preferably, the adjusting column penetrates through the tensioning frame, one of the adjusting columns is in threaded connection with the tensioning frame, a bevel gear one is rotationally installed at the top of the adjusting column, a handle is rotationally installed at one side of the slitting machine body, a bevel gear two engaged with the bevel gear one is fixedly installed at one side of the handle and in the slitting machine body, and both the bevel gears one and two are in rotational connection with the slitting machine body; the personnel can rotate the handle, drive one of the adjusting columns to rotate by cooperation of the bevel gears one and two, and stably control the tensioning frame to drive the side plates to move close to or away from the tension roller one under the action of the screw thread, so as to tension the thermal paper.

[0009] Preferably, the flattening assembly comprises: A fixed box is fixedly installed on the rotating shaft, two push grooves are formed in the fixed box, springs are fixedly installed in the push grooves, push plates are fixedly installed on one side of the springs and are in sliding connection with the push grooves, and the push plates extend to the outside through the push grooves; A roller holder is fixedly installed on one side of the push plate and is located on one side of the fixed box, a roller groove is formed in one side of the roller holder, and a flattening roller is rotatably installed in the roller groove; when the thermal paper is continuously wound on the winding drum, one side of the flattening roller is in continuous contact with the thermal paper, so that the thermal paper wound on the winding drum is ensured to be wrinkle-free, and the influence of wrinkles on the winding quality of the thermal paper is avoided.

[0010] Preferably, the winding assembly comprises: Two connecting frames are fixedly installed on the two sides of the rotating shaft, power motors are fixedly installed on one side of the connecting frames, winding rollers are rotatably installed on one side of the connecting frames, and sleeve rods are arranged on the two sides of the winding rollers; the sleeve rods on the two sides of the winding rollers can be used to fix the winding drum for winding the thermal paper on the winding roller, so as to drive the winding drum to rotate and wind the thermal paper.

[0011] Preferably, the output end of the power motor extends through the connecting frame and is coaxially connected with the winding roller, and the output end of the power motor is rotatably connected with the connecting frame; the power motor can stably drive the winding roller to continuously rotate, so as to stably drive the winding drum on the sleeve rod to continuously wind the thermal paper.

[0012] Preferably, a control groove is formed in the winding roller, a screw rod and two moving plates are arranged in the control groove, an extension plate extending through the winding roller is fixedly installed on one side of the moving plates, and one side of the extension plate is fixedly connected with one side of the sleeve rod; when the extension plate is driven in the control groove, the sleeve rod can be stably driven to move on one side of the winding roller.

[0013] Preferably, the screw rod is rotatably connected with the inner wall of the control groove, the screw rod extends to the outside through the control groove, a handle is fixedly installed on one side of the screw rod and located on one side of the winding roller, moving blocks in sliding connection with the control groove are threadedly installed on the screw rod, a linkage plate is rotatably installed on one side of the moving blocks, and a butt joint fixed with the moving plate is rotatably installed on one side of the linkage plate; the screw rod can stably drive the two moving blocks to move synchronously in the control groove, so as to stably control the two sleeve rods to move synchronously on the two sides of the winding roller.

[0014] Preferably, the upper and lower sides of the rotating shaft are fixedly provided with a top box, the top of the top box is provided with a reset slot, the reset slot is provided with a reset plate, the top of the reset plate penetrates through the reset slot and is fixedly provided with a push frame, the top of the push frame is fixedly provided with a handle, the reset slot is fixedly provided with a tension spring, one side of the tension spring is fixedly connected with one side of the reset plate, and the reset plate is slidably connected with the reset slot. Through the movable push frame on the top box, after the thermal paper is wound on the winding drum, the personnel can move the push frame on the top box by pushing the handle, so as to push the winding drum from the sleeve rod to one side, and then the winding drum is conveniently dismounted from the sleeve rod.

[0015] Preferably, the power assembly comprises: A servo motor is fixedly installed on one side of the rewinding frame, the output end of the servo motor penetrates through the rewinding frame and is coaxially connected with the rotating shaft, and the output end of the servo motor is rotationally connected with the rewinding frame. Through the output end of the servo motor, the rotating shaft can be stably driven to rotate half a circle on the rewinding frame, so as to drive the winding drums on the sleeve rods to exchange positions, so that the winding drums can wind the thermal paper after the previous winding drum. Advantages

[0016] 1. Through the two side sleeve rods on the winding roller, the screw rotating in the control groove can drive the two moving blocks to move synchronously in the control groove under the action of the screw thread, and then drive the butt joint, the extension plate and the moving plate to move in the control groove through the linkage plate, so as to drive the sleeve rods on both sides of the winding roller to move synchronously away from or close to each other, so that the two sleeve rods can fix the winding drums with different diameters on the winding roller, and during the adjustment of the distance between the sleeve rods, only the rotating handle needs to be rotated, without occupying much time and affecting the production efficiency of the thermal paper.

[0017] 2. Through the servo motor to drive the rotating shaft to rotate, the two connecting frames can be exchanged, so as to drive the two winding rollers to exchange positions, so that the winding drums on the winding rollers can exchange positions, and after one winding drum finishes winding the thermal paper, the other empty winding drum can be directly used for winding through the exchange, so that the steps of stopping and dismounting and installing the winding drum can be saved, and the production efficiency of the thermal paper is improved.

[0018] 3. Through the movable push frame on the top box, after the thermal paper is wound on the winding drum, the personnel can move the push frame on the top box by pushing the handle, so as to push the winding drum from the sleeve rod to one side, and then the winding drum is conveniently dismounted from the sleeve rod, and the tension spring can drive the reset plate to reset to the original position, so as to automatically reset the push frame after use.

[0019] The above description is only a summary of the technical solutions of the embodiments of the present application. In order to make the technical means of the embodiments of the present application more clearly understood, and to be implemented according to the content of the description, and in order to make the above and other purposes, features and advantages of the embodiments of the present application more obvious and easy to understand, the specific embodiments of the present application are described below. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0021] Figure 1 It is a schematic diagram of the overall structure of the present application. Figure 2 It is a side view of the present application. Figure 3 It is a schematic diagram of the rotating shaft of the present application. Figure 4 It is a schematic diagram of the internal structure of the reset slot of the present application. Figure 5 It is a schematic diagram of the internal structure of the push slot of the present application. Figure 6 It is a schematic diagram of the internal structure of the control slot of the present application. Figure 7 It is an exploded schematic diagram of the sleeve rod and the moving plate of the present application. Figure 8 It is a schematic diagram of the present application. Figure 7 It is an enlarged schematic diagram of A in the above figure.

[0022] Explanation of reference signs: 1, slitting machine body; 2, rewinding frame; 3, tensioning roller one; 4, adjusting column; 5, tensioning frame; 6, side plate; 7, tensioning roller two; 8, servo motor; 9, rotating shaft; 10, fixed box; 11, push slot; 12, spring; 13, push plate; 14, roller frame; 15, flattening roller; 16, top box; 17, reset slot; 18, tension spring; 19, push frame; 20, handle; 21, connecting frame; 22, power motor; 23, winding roller; 24, control slot; 25, screw rod; 26, rotating handle; 27, moving block; 28, linkage plate; 29, moving plate; 30, butt joint; 31, extension plate; 32, sleeve rod; 33, crank handle; 34, roller slot; 35, top block; 36, reset plate. DETAILED DESCRIPTION

[0023] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative effort should fall into the scope of the present application.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the use of the terms "including," "comprising," "having" and variations thereof herein is meant to encompass the inclusion of the recited elements but not the exclusion of others.

[0025] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase "in an embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive of one another. It is expressly understood that any of the embodiments described herein can be incorporated into any other embodiment.

[0026] The positional words appearing in the following description are the directions shown in the drawings, and are not intended to limit the specific structure of the present application. For example, in the description of the present application, the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only intended to facilitate the description of the present application and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0027] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "linking" should be understood in a broad sense, for example, the "connection" or "linking" of mechanical structures can mean physical connection, for example, the physical connection can be fixed connection, for example, fixed connection by screws, bolts or other fixing members; the physical connection can also be detachable connection, for example, mutual clamping or clamping connection; the physical connection can also be integrally connected, for example, welding, bonding or integrally formed connection. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0028] In order to enable those skilled in the art to better understand the technical scheme of the present application, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings.

[0029] The present application provides a rewinding mechanism of a thermal paper slitting machine as shown in Figures 1-8 The present application provides a rewinding mechanism of a thermal paper slitting machine as shown in The slitting machine body 1 is fixedly installed on one side of the rewinding frame 2, and the rewinding frame 2 is provided with a tensioning assembly for tensioning the thermal paper on one side; The rotating shaft 9 is rotatably installed on the rewinding frame 2, and the rotating shaft 9 is respectively provided with a flattening assembly for preventing the thermal paper from wrinkling and a winding assembly for fixing the winding drum; The power assembly is located on one side of the slitting machine body 1 and is used to drive the rotating shaft 9 to rotate.

[0030] Further, the personnel will wrap the winding drum for winding on the two sleeve rods 32, then the personnel controls the servo motor 8, the output end of the servo motor 8 will drive the rotating shaft 9 to rotate half a circle, the rotating shaft 9 will synchronously drive the fixed box 10 and the two connecting frames 21, the power motor 22, the winding roller 23 and the two sleeve rods 32 to synchronously rotate, then the personnel will pass the thermal paper through the processing of the slitting machine body 1, and then wind one end of the thermal paper from the tensioning roller one 3 to the lower side of the tensioning roller two 7, and then fix it on the winding drum, then the personnel will start the power motor 22, the output end of the power motor 22 will drive the winding roller 23 to continuously rotate, the winding roller 23 will drive the two sleeve rods 32 to synchronously rotate, and then drive the winding drum on the sleeve rod 32 to synchronously rotate, at this time the thermal paper will be continuously wound on the winding drum, at the same time, one side of the flattening roller 15 will continuously contact with the thermal paper, so as to ensure that there is no wrinkle on the thermal paper, during this period, the personnel can fix the next required winding drum on the other idle sleeve rod 32 in the above same way, when it is needed to adjust the distance between the sleeve rods 32 to adapt to the inner wall of the winding drum, the personnel will rotate the rotating handle 26, the rotating handle 26 will drive the screw rod 25 to rotate, under the action of the screw thread, the two moving blocks 27 will continuously and synchronously move along the control groove 24, at the same time, the moving block 27 will drive the moving plate 29 to move in the control groove 24 through the linkage plate 28 and the butt joint 30, the moving plate 29 will synchronously drive the extension plate 31 and the sleeve rod 32 to synchronously move, until the distance between the two sleeve rods 32 is adjusted to adapt to the inner wall diameter of the winding drum, stop rotating the rotating handle 26, when the thermal paper on one of the winding drums is wound up, the personnel controls the servo motor 8, the servo motor 8 will drive the winding drums on the two sleeve rods 32 to exchange positions, at this time the personnel can fix the thermal paper on the winding drum and continuously wind the thermal paper in the above same steps.

[0031] Through the two sleeve rods 32 on the winding roller 23, cooperating with the rotating screw rod 25 in the control groove 24, under the action of the screw thread, the two moving blocks 27 can be driven to synchronously move in the control groove 24, and then drive the butt joint 30, the extension plate 31 and the moving plate 29 to move in the control groove 24 through the linkage plate 28, so as to drive the sleeve rods 32 on both sides of the winding roller 23 to synchronously move close to or away from each other, thereby the two sleeve rods 32 can fix the winding drums with different diameters on the winding roller 23, and during the adjustment of the distance between the sleeve rods 32, only the personnel needs to rotate the rotating handle 26.

[0032] In the embodiment, the tensioning assembly comprises: The two adjusting columns 4 are both rotationally installed in the rewinding frame 2, and the same tensioning frame 5 is arranged on the two adjusting columns 4, the bottom of the tensioning frame 5 is fixedly installed with two side plates 6, and the two side plates 6 are rotationally installed with the tensioning roller two 7. The two top blocks 35 are both fixedly installed on the top of the rewinding frame 2 and above the adjusting columns 4, and the same tensioning roller one 3 is rotationally installed between the two top blocks 35.

[0033] Furthermore, by using tension roller 3 in conjunction with side plate 6, the thermal paper can be kept taut during winding, thus preventing it from becoming loose and affecting the winding quality.

[0034] In this embodiment, the adjusting column 4 passes through the tensioning frame 5, and one of the adjusting columns 4 is threadedly connected to the tensioning frame 5. A bevel gear 1 is rotatably installed on the top of the adjusting column 4. A crank handle 33 is rotatably installed on one side of the slitting machine body 1. A bevel gear 2 that meshes with the bevel gear 1 is fixedly installed on one side of the crank handle 33 and inside the slitting machine body 1. Both the bevel gear 1 and the bevel gear 2 are rotatably connected to the slitting machine body 1.

[0035] Furthermore, by turning the crank handle 33, and in conjunction with the engagement of bevel gear one and bevel gear two, one of the adjusting columns 4 is driven to rotate. Under the action of the thread, the tensioning frame 5 is stably controlled to move the side plate 6 closer to or away from the tensioning roller 3, thereby tightening the thermal paper.

[0036] In this embodiment, the flattening component includes: The fixed box 10 is fixedly installed on the rotating shaft 9. Two push grooves 11 are opened inside the fixed box 10. A spring 12 is fixedly installed in the push groove 11. A push plate 13 that is slidably connected to the push groove 11 is fixedly installed on one side of the spring 12. One side of the push plate 13 passes through the push groove 11 and extends to the outside. Roller frame 14 is fixedly installed on one side of push plate 13 and located on one side of solid box 10. Roller groove 34 is provided on one side of roller frame 14, and rolling roller 15 is rotatably installed in roller groove 34.

[0037] Furthermore, as the thermal paper continues to be wound on the winding drum, one side of the flattening roller 15 will be in continuous contact with the thermal paper, thereby ensuring that the thermal paper wound on the winding drum will not have wrinkles, thus avoiding wrinkles from affecting the winding quality of the thermal paper.

[0038] In this embodiment, the winding component includes: Two connecting frames 21 are fixedly installed on both sides of the rotating shaft 9. A power motor 22 is fixedly installed on one side of the connecting frame 21, and a take-up roller 23 is rotatably installed on one side of the connecting frame 21. Both sides of the take-up roller 23 are provided with sleeve rods 32.

[0039] Furthermore, the take-up drum used for winding thermal paper can be fixed on the take-up drum 23 by means of the sleeve rods 32 on both sides of the take-up roller 23, thereby driving the take-up drum to rotate and winding the thermal paper.

[0040] In this embodiment, the output end of the power motor 22 passes through the connecting frame 21 and is coaxially connected to the take-up roller 23, and the output end of the power motor 22 is rotatably connected to the connecting frame 21.

[0041] Furthermore, the power motor 22 can stably drive the take-up roller 23 to rotate continuously, which in turn can stably drive the take-up cylinder on the sleeve rod 32 to continuously wind up the thermal paper.

[0042] In this embodiment, a control groove 24 is provided inside the take-up roller 23. A screw 25 and two shift plates 29 are provided inside the control groove 24. An extension plate 31 that penetrates the take-up roller 23 is fixedly installed on one side of the shift plate 29. One side of the extension plate 31 is fixedly connected to one side of the sleeve rod 32.

[0043] Furthermore, the extension plate 31 within the control groove 24 can stably drive the sleeve rod 32 to move on one side of the take-up roller 23 when driven by the moving block 27.

[0044] In this embodiment, the screw 25 is rotatably connected to the inner wall of the control groove 24. One side of the screw 25 passes through the control groove 24 and extends to the outside. A handle 26 is fixedly installed on one side of the screw 25 and on the side of the take-up roller 23. A shift block 27 that is slidably connected to the control groove 24 is threaded on the screw 25. A linkage plate 28 is rotatably installed on one side of the shift block 27. A connector 30 that is fixed to the shift plate 29 is rotatably installed on one side of the linkage plate 28.

[0045] Furthermore, the screw 25 can stably drive the two moving blocks 27 to move synchronously within the control groove 24, thereby stably controlling the two sleeve rods 32 to move synchronously on both sides of the take-up roller 23.

[0046] In this embodiment, top boxes 16 are fixedly installed on both the upper and lower sides of the rotating shaft 9. A reset groove 17 is provided on the top of the top box 16. A reset plate 36 is provided in the reset groove 17. A pusher 19 is fixedly installed through the reset groove 17 on the top of the reset plate 36. A handle 20 is fixedly installed on the top of the pusher 19. A tension spring 18 is fixedly installed in the reset groove 17. One side of the tension spring 18 is fixedly connected to one side of the reset plate 36. The reset plate 36 is slidably connected to the reset groove 17.

[0047] Furthermore, by means of the movable pusher 19 on the top box 16, after the thermal paper is wound onto the take-up drum, the operator can push the handle 20 to move the pusher 19 on the top box 16, thereby pushing the take-up drum from the sleeve rod 32 to one side, so as to facilitate the removal of the take-up drum from the sleeve rod 32.

[0048] In this embodiment, the power assembly includes: Servo motor 8 is fixedly installed on one side of rewinding frame 2. The output end of servo motor 8 passes through rewinding frame 2 and is coaxially connected to rotating shaft 9. The output end of servo motor 8 is rotatably connected to rewinding frame 2.

[0049] Furthermore, the output of the servo motor 8 can stably drive the rotating shaft 9 to rotate half a turn on the rewinding frame 2, which in turn can drive the take-up drums on the sleeve rod 32 to exchange positions, so that the take-up drum can immediately take up the thermal paper after the previous take-up drum.

[0050] Working principle: First, the operator places the take-up drum onto the two sleeves 32. Then, the operator controls the servo motor 8, whose output drives the rotating shaft 9 to rotate half a turn. The rotating shaft 9 synchronously drives the fixed box 10, the two connecting frames 21, the power motor 22, the take-up roller 23, and the two sleeves 32 to rotate synchronously. Next, after the thermal paper has been processed by the slitting machine body 1, one end of the thermal paper is wound from the tension roller 3 to below the tension roller 7 and then fixed onto the take-up drum. Subsequently, the operator turns on the power motor 22. The output end drives the take-up roller 23 to rotate continuously. The take-up roller 23 drives the two sleeve rods 32 to rotate synchronously, which in turn drives the take-up drum on the sleeve rods 32 to rotate synchronously. At this time, the thermal paper will continue to be wound on the take-up drum. Meanwhile, one side of the flattening roller 15 will continue to contact the thermal paper to ensure that there are no wrinkles on the thermal paper. During this period, the operator can put the next required take-up drum on another empty sleeve rod 32 in the same way. When it is necessary to adjust the spacing of the sleeve rods 32 to fit the inner wall of the take-up drum, the operator turns the handle 26, which drives the screw. Rotating the handle 25 causes the two moving blocks 27 to move synchronously along the control groove 24 under the action of the screw thread. Simultaneously, the moving blocks 27 drive the moving plate 29 to move within the control groove 24 via the linkage plate 28 and the connector 30. The moving plate 29 then synchronously drives the extension plate 31 and the sleeve rod 32 to move synchronously until the distance between the two sleeve rods 32 is adjusted to match the inner diameter of the take-up drum. At this point, the handle 26 can be stopped. After the thermal paper on one of the take-up drums is wound up, the operator controls the servo motor 8, which drives the take-up drums on both sleeve rods 32 to switch positions. At this point, the operator can fix the thermal paper to the take-up drum using the same steps described above and continue winding it up. During this period, the operator can use the previously wound thermal paper and take-up drum to push the pusher 19 towards the take-up drum by holding the handle 20, thereby removing the take-up drum from the sleeve rod 32. The pusher 19 will contact and continuously abut against one side of the take-up drum until the take-up drum is pushed off one side of the sleeve rod 32. Then the tension spring 18 will retract, thereby driving the reset plate 36 to move and reset in the reset groove 17, thereby driving the pusher 19 and the handle 20 to reset synchronously.

[0051] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A rewinding mechanism of a thermal paper slitting machine, characterized by, Include: The slitting machine body (1), one side of the slitting machine body (1) is fixedly installed with a rewinding frame (2), one side of the rewinding frame (2) is provided with a tensioning assembly for tensioning the heat-sensitive paper; The rotating shaft (9) is rotatably installed on the rewinding frame (2), and the rotating shaft (9) is respectively provided with a flattening assembly for preventing the heat-sensitive paper from wrinkling and a winding assembly for fixing the winding drum; The power assembly is located on one side of the slitting machine body (1), and is used to drive the rotating shaft (9) to rotate.

2. The rewinding mechanism of a thermal paper slitting machine according to claim 1, characterized in that, The tensioning assembly comprises: Two adjusting columns (4) are rotatably installed in the rewinding frame (2), and a same tensioning frame (5) is arranged on the two adjusting columns (4), two side plates (6) are fixedly installed at the bottom of the tensioning frame (5), and a tensioning roller two (7) is rotatably installed between the two side plates (6); Two top blocks (35) are fixedly installed on the top of the rewinding frame (2) and above the adjusting columns (4), and a same tensioning roller one (3) is rotatably installed between the two top blocks (35).

3. The rewinding mechanism of a thermal paper slitting machine according to claim 2, characterized in that, The adjusting column (4) penetrates the tensioning frame (5), one of the adjusting columns (4) is threadedly connected with the tensioning frame (5), a bevel gear one is rotatably installed at the top of the adjusting column (4), a crank (33) is rotatably installed on one side of the slitting machine body (1), a bevel gear two meshing with the bevel gear one is fixedly installed on one side of the crank (33) and in the slitting machine body (1), and the bevel gear one and the bevel gear two are rotatably connected with the slitting machine body (1).

4. The rewinding mechanism of a thermal paper slitting machine according to claim 1, characterized in that, The flattening assembly comprises: A fixed box (10) is fixedly installed on the rotating shaft (9), two push grooves (11) are formed in the fixed box (10), springs (12) are fixedly installed in the push grooves (11), push plates (13) slidingly connected with the push grooves (11) are fixedly installed on one side of the springs (12), and the push plates (13) penetrate the push grooves (11) and extend to the outside; A roller frame (14) is fixedly installed on one side of the push plate (13) and one side of the fixed box (10), a roller groove (34) is formed in one side of the roller frame (14), and a flattening roller (15) is rotatably installed in the roller groove (34).

5. The rewinding mechanism of a thermal paper slitting machine according to claim 1, characterized in that, The winding assembly comprises: Two connecting frames (21) are fixedly installed on both sides of the rotating shaft (9), a power motor (22) is fixedly installed on one side of the connecting frame (21), a winding roller (23) is rotatably installed on one side of the connecting frame (21), and sleeve rods (32) are arranged on both sides of the winding roller (23).

6. The rewinding mechanism of a thermal paper slitting machine according to claim 5, characterized in that, The output end of the power motor (22) penetrates the connecting frame (21) and is coaxially connected with the winding roller (23), and the output end of the power motor (22) is rotatably connected with the connecting frame (21).

7. The rewinding mechanism of a thermal paper slitting machine according to claim 5, characterized in that, The winding roller (23) is internally provided with a control groove (24), the control groove (24) is internally provided with a screw rod (25) and two moving plates (29), one side of the moving plate (29) is fixedly provided with an extension plate (31) penetrating the winding roller (23), one side of the extension plate (31) is fixedly connected with one side of a sleeve rod (32).

8. The rewinding mechanism of a thermal paper slitting machine according to claim 7, characterized in that, The screw rod (25) is rotationally connected with the inner wall of the control groove (24), one side of the screw rod (25) penetrates the control groove (24) and extends to the outside, one side of the screw rod (25) and located at one side of the winding roller (23) is fixedly provided with a rotating handle (26), the screw rod (25) is threadedly provided with a moving block (27) which is slidingly connected with the control groove (24), one side of the moving block (27) is rotationally provided with a linkage plate (28), one side of the linkage plate (28) is rotationally provided with a butt joint (30) which is fixed with the moving plate (29).

9. The rewinding mechanism of a thermal paper slitting machine according to claim 1, characterized in that, The upper and lower sides of the rotating shaft (9) are fixedly provided with a top box (16), the top of the top box (16) is provided with a reset groove (17), the reset groove (17) is internally provided with a reset plate (36), the top of the reset plate (36) penetrates the reset groove (17) and is fixedly provided with a push frame (19), the top of the push frame (19) is fixedly provided with a handle (20), the reset groove (17) is fixedly provided with a tension spring (18), one side of the tension spring (18) is fixedly connected with one side of the reset plate (36), the reset plate (36) is slidingly connected with the reset groove (17).

10. The rewinding mechanism of a thermal paper slitting machine according to claim 9, characterized in that, The power assembly comprises: A servo motor (8) is fixedly provided on one side of the rewinding frame (2), the output end of the servo motor (8) penetrates the rewinding frame (2) and is coaxially connected with the rotating shaft (9), the output end of the servo motor (8) is rotationally connected with the rewinding frame (2).

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