Shaft pulling device of toilet paper machine

Abstract

The invention provides a shaft pulling device of a toilet paper machine, and belongs to the technical field of toilet paper production. Comprising a rack, one end of the rack is open and provided with a shaft pulling end, movable seats are symmetrically arranged on the shaft pulling end, the tail ends of the two movable seats are fixedly connected with a fixing frame, the inner side of the fixing frame is sleeved with a cleaning assembly, the outer portion of the fixing frame is fixedly connected with a guide assembly, and the outer portion of the shaft pulling end is rotationally connected with a limiting assembly. Through cooperation of the driving roller, the clamping roller and the limiting assembly, rapid and accurate clamping and positioning of a shaft rod before shaft pulling are achieved, an electric telescopic rod in the limiting assembly drives a deflection frame to deflect through a sleeve and a second connecting rod, the clamping roller is matched with the driving roller to stably clamp the end of the shaft rod, and the shaft pulling accuracy is improved. Enough friction force between the driving roller and the shaft rod is ensured, a reliable foundation is provided for follow-up shaft pulling actions, meanwhile, the clamping process is easy and convenient to operate and high in automation degree, and the efficiency and accuracy of the shaft pulling preparation stage are effectively improved.

Description

Technical Field

[0001] This invention relates to the field of toilet paper production technology, and in particular to a shaft puller for a toilet paper machine. Background Technology

[0002] In the later stages of toilet paper production, after large-diameter paper rolls are wound on the rewinder, they need to be removed from the shaft that supports and drives them to rotate. The special equipment used to pull the shaft out of the paper core of the paper roll is called the shaft puller. The degree of automation and reliability of this equipment are crucial for ensuring the smooth operation of the production line, reducing the labor intensity of workers, and avoiding product damage.

[0003] Currently, common methods for removing paper rolls involve using a clamping mechanism to fix the end of the roll, and then forcibly pulling the roll out of the paper core using linear hydraulic or electric traction. This traditional process has several shortcomings when dealing with increasingly larger paper rolls and longer rolls. First, before the removal process begins, it is difficult to precisely align the end of the roll with the center of the puller's clamp. This misalignment directly leads to skewing and collisions during removal, damaging not only the surface finish of the roll but also the clamp. Second, during the extraction process, paper scraps scraped from the paper core adhere to the surface of the roll. Existing equipment lacks cleaning functions for dust and other impurities, which move with the shaft. This exacerbates wear on transmission components during subsequent use and may contaminate the shaft puller. Furthermore, the paper core and shaft are prone to seizing due to prolonged high-pressure tight contact, resulting in significant static friction. Pulling the shaft in a straight line creates immense resistance, leading to high energy consumption, noise, and even tearing of the inner paper core, severely impacting production efficiency and product quality. Therefore, this application provides a shaft puller for a tissue paper machine to meet these requirements. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a shaft puller for a toilet paper machine to solve the problems of inaccurate alignment, inconvenient cleaning, and easy shaft jamming in the existing technology.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: A shaft puller for a toilet paper machine includes a frame, one end of which is open and has a shaft puller end. Symmetrically arranged movable seats are mounted on the shaft puller end. A fixed frame is fixedly connected to the ends of the two movable seats. A cleaning component is sleeved inside the fixed frame, and a guide component is fixedly connected to the outside of the fixed frame. A limit component is rotatably connected to the outside of the shaft puller end, and a drive component is disposed outside the shaft puller end. A drive roller associated with the drive component is rotatably connected to the inside of the shaft puller end. A clamping roller is rotatably connected to the limit component. A transmission component is disposed between the drive roller and the movable seats. The cleaning component includes an air pump fixedly mounted outside the frame. The machine includes an annular tube fitted inside the fixed frame, a cleaning component for air cleaning during the shaft removal process; a guiding component including a guide frame fixedly connected to the outside of the fixed frame, which is used for auxiliary guidance of the shaft before it enters the shaft removal end; a limiting component including a deflection frame rotatably connected to the outside of the shaft removal end, which is used to drive the clamping roller to clamp and limit the shaft; a driving component including a servo motor fixedly mounted on the outside of the frame, which is used to drive the driving roller to rotate and perform the shaft removal operation; and a transmission component including cams symmetrically arranged on the shaft of the driving roller and protrusions fixedly connected to the outside of the movable seat, which is used to drive the shaft to vibrate.

[0006] Optionally, the inner side of the frame is rotatably connected with evenly distributed support rollers, and a contact sensor is fixedly connected to the inner side of the end of the frame away from the pull shaft. The drive roller, clamping roller and support roller are all provided with recesses on their outer sides.

[0007] Optionally, uniformly distributed nozzles are fixedly connected to the annular tube, with the ends of the nozzles tilted away from the position of the pull shaft end. The output end of the air pump is connected to the annular tube through a pipe, and the space of the inner ring of the annular tube corresponds to the position between the drive roller and the clamping roller.

[0008] Optionally, the guide frame has an inverted U-shaped cross section, and the top of the guide frame is provided with an arc surface that matches the shape of the middle part of the drive roller. One end of the guide frame is fixedly connected to the fixed frame on the side near the pull shaft end, and the guide frame as a whole surrounds the outside of the annular tube and the nozzle.

[0009] Optionally, the guide frame has a through opening corresponding to the orientation of the nozzle end. A rubber ring is fixedly connected to the top of the through opening. The top of the guide frame is located below the top of the drive roller. The end of the guide frame away from the pull shaft end is provided with a downwardly inclined guide surface.

[0010] Optionally, the middle part of the deflection frame is rotatably connected to the pull shaft end via a rotating rod, and the deflection frames are symmetrically distributed on both sides of the pull shaft end. The deflection frame as a whole is L-shaped, and a clamping roller is rotatably connected between the short ends of the two deflection frames.

[0011] Optionally, a second connecting rod is fixedly connected between the long sides of the deflection frame, and an electric telescopic rod is rotatably mounted on the bottom of the frame. A sleeve is fixedly connected to the movable end of the electric telescopic rod, and the sleeve is fitted over the second connecting rod.

[0012] Optionally, a first connecting rod is fixedly connected to the end of the drive shaft of the servo motor. The first connecting rod is located on the outside of the deflection frame, and a first bevel gear is fixedly connected to the end of the first connecting rod. The rotating shaft connecting the drive roller and the pull shaft end extends to the outside of the pull shaft end and is fixedly connected to a second bevel gear. The second bevel gear meshes with the first bevel gear.

[0013] Optionally, the rotating shaft rotatably connected between the drive roller and the puller shaft extends to the outside of the puller shaft, and the cam is located on the outside of the puller shaft, with a groove on the cam that matches the shape of the protrusion.

[0014] Optionally, the movable seat has a cavity inside that matches the shape of the pull shaft end, and a uniformly distributed spring is fixedly connected between the movable seat and the pull shaft end. A limit block is fixedly connected to the bottom of the movable seat, and a limit groove that matches the shape of the limit block is opened on the pull shaft end. The limit block is slidably sleeved in the limit groove.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects: In the above scheme, by setting up the drive roller, clamping roller and limiting component, the shaft is quickly and accurately clamped and positioned before the shaft is pulled out. The electric telescopic rod in the limiting component drives the deflection frame to deflect through the sleeve and the second connecting rod, so that the clamping roller and the drive roller form a stable clamp on the end of the shaft, ensuring that there is sufficient friction between the drive roller and the shaft, providing a reliable foundation for the subsequent shaft pulling action. At the same time, the clamping process is simple to operate and highly automated, effectively improving the efficiency and accuracy of the shaft pulling preparation stage.

[0016] By setting up the drive component and the cleaning component to work in tandem, the shaft pulling and cleaning are carried out simultaneously. The servo motor in the drive component drives the drive roller to rotate through the bevel gear transmission, and uses friction to smoothly pull the shaft out of the paper core. The air pump in the cleaning component continuously sprays air onto the surface of the shaft through the annular pipe and the inclined nozzle to remove attached debris and prevent impurities from contaminating the shaft puller or affecting the subsequent core threading operation. The synchronous operation of the two components not only ensures the continuity of the shaft pulling process, but also improves the cleanliness of the shaft and the convenience of equipment maintenance.

[0017] By setting up the transmission components in conjunction with the movable seat and spring, a small amount of high-frequency micro-vibration of the shaft is achieved during the shaft pulling process, which effectively prevents the shaft from seizing. The rotation of the drive roller drives the cam to periodically squeeze the protrusion, causing the movable seat to reciprocate and rise under the action of the spring. The vibration is transmitted to the shaft through the fixed frame and the guide frame, breaking the static friction state between the shaft and the paper core, significantly reducing the shaft pulling resistance, avoiding shaft jamming due to excessive static friction, and ensuring a smooth shaft pulling process.

[0018] By setting up guide components, support rollers, and contact sensors, the entire process of shaft entry, extraction, and termination is assisted and controlled. The guide frame guides the shaft to accurately align with the center concave part of the drive roller through its U-shaped structure and inclined guide surface, avoiding skew and collision. The support roller provides rolling support during shaft extraction, reducing movement resistance. The contact sensor triggers a signal after the shaft is fully extracted, automatically stopping the shaft extraction and switching the working mode to prepare for subsequent core insertion. The overall process is highly automated, safe and reliable, and effectively ensures the surface accuracy of the shaft and the operating efficiency of the equipment.

[0019] By integrating the annular tube, nozzle, and guide frame into a single design, and by creating a through opening and installing a rubber ring on the guide frame, the clean airflow effectively covers the shaft, while the rubber ring cushions the impact and prevents damage to the shaft surface during vibration transmission. At the same time, the guide frame protects the nozzle and prevents structural interference during shaft removal. Attached Figure Description

[0020] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the invention and, together with the specification, further serve to explain the principles of the invention and enable those skilled in the art to practice and use the invention.

[0021] Figure 1 A three-dimensional structural diagram of the shaft puller of a toilet paper machine; Figure 2 A first-view structural diagram of the shaft puller end of a toilet paper machine; Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle; Figure 4 A schematic diagram of the second-view structure of the shaft puller end of a toilet paper machine; Figure 5 for Figure 3 Enlarged structural diagram at point B; Figure 6 A schematic diagram of the assembly structure of the shaft end, fixing frame, electric telescopic rod and deflection frame; Figure 7 A three-dimensional structural diagram of the electric telescopic pole and deflector frame; Figure 8This is a schematic diagram of the three-dimensional structure of the fixing frame and the guide frame; Figure 9 This is a schematic diagram of the drive roller and cam mechanism. Figure 10 This is a partial sectional view of the movable seat. Figure 11 This is a schematic diagram of the structure consisting of a fixed frame, a movable seat, a cam, and a protrusion.

[0022] Figure label: 1. Frame; 2. Shaft end; 3. Fixing frame; 4. Electric telescopic rod; 5. Deflection frame; 6. Guide frame; 7. Drive roller; 8. Clamping roller; 9. Support roller; 10. Air pump; 11. Contact sensor; 12. Movable seat; 13. Through opening; 14. Rubber ring; 15. Annular tube; 16. Nozzle; 17. Servo motor; 18. First connecting rod; 19. First bevel gear; 20. Second bevel gear; 21. Sleeve; 22. Second connecting rod; 23. Cam; 24. Protrusion; 25. Limiting block; 26. Cavity; 27. Spring; 28. Groove; 29. ​​Guide surface.

[0023] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0024] The present invention provides a shaft puller for a toilet paper machine, which is described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art can use other alternative methods to implement some known technologies; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0025] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0026] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0027] It is understood that the meanings of “on”, “above”, and “above” in this invention should be interpreted in the broadest manner, such that “on” means not only “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” means not only “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.

[0028] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0029] like Figures 1 to 6As shown, an embodiment of the present invention provides a shaft puller for a toilet paper machine, including a frame 1. One end of the frame 1 is open and has a shaft puller end 2. The shaft puller end 2 is symmetrically provided with movable seats 12. The ends of the two movable seats 12 are fixedly connected to a fixed frame 3. A cleaning component is sleeved inside the fixed frame 3, and a guide component is fixedly connected to the outside of the fixed frame 3. A limit component is rotatably connected to the outside of the shaft puller end 2, and a drive component is provided outside the shaft puller end 2. A drive roller 7 associated with the drive component is rotatably connected to the inside of the shaft puller end 2. A clamping roller 8 is rotatably connected to the limit component. A transmission component is provided between the drive roller 7 and the movable seats 12. Before the shaft puller operation, the frame 1 is moved as a whole by a displacement mechanism to align it with the end of the shaft to be pulled out. Then, the frame 1 moves the shaft puller end 2 closer to the end of the shaft, so that the end of the shaft passes through the guide component and... The fixed frame 3 corresponds to the position of the drive roller 7. Then, the limiting component works and drives the clamping roller 8 to press down from the top of the shaft, cooperating with the drive roller 7 to clamp and limit, completing the preparatory action before pulling the shaft. Then, the drive component and the cleaning component work synchronously. The operation of the drive component drives the drive roller 7 to rotate, and then the shaft is pulled out from the paper core by the friction between the drive roller 7 and the shaft. At the same time, the cleaning component continuously sprays air to clean the pulled-out shaft, so as to prevent debris and impurities from adhering to the shaft and affecting the subsequent core insertion work or contaminating the shaft puller. While the drive roller 7 rotates and pulls out the shaft, it also drives the movable seat 12 to generate high-frequency vibration through the transmission component. The vibration is transmitted to the shaft through the guide frame 6 on the fixed frame 3, so that the shaft can also generate high-frequency but slight vibration during the pulling process, avoiding excessive static friction during the pulling process, and thus effectively preventing the shaft from sticking.

[0030] The inner side of the frame 1 is rotatably connected with evenly distributed support rollers 9, and a contact sensor 11 is fixedly connected to the inner side of the end of the frame 1 away from the shaft pulling end 2. The drive roller 7, clamping roller 8 and support roller 9 are all provided with recesses on their exteriors. The support roller 9 is used to provide auxiliary support for the pulled-out shaft, and the support roller 9 itself rotates, which can reduce the resistance of the shaft during the pulling process after it enters the frame 1, thereby reducing the workload of the entire shaft puller. The contact sensor 11 can contact the end of the shaft after the shaft is completely pulled out, thereby stopping the shaft pulling action of the shaft puller and switching the working mode of the drive assembly to prepare for the core insertion work after the shaft is pulled out. The principle and usage of the contact sensor 11 are the same as the prior art, and will not be described in detail here.

[0031] In this embodiment, as Figures 2 to 6As shown, the cleaning assembly includes an air pump 10 fixedly installed on the outside of the frame 1 and an annular tube 15 sleeved inside the frame 3. Evenly distributed nozzles 16 are fixedly connected to the annular tube 15, with the ends of the nozzles 16 tilted away from the shaft-pulling end 2. The cleaning assembly is used for air cleaning during the shaft-pulling process. The output end of the air pump 10 is connected to the annular tube 15 via a pipe. The space within the annular tube 15 corresponds to the position between the drive roller 7 and the clamping roller 8. During the shaft-pulling operation, the air pump 10 can be started and compressed, then input into the annular tube 15 through the pipe, and finally sprayed out through the nozzles 16 on the annular tube 15, thus acting on the outside of the shaft passing through the inner space of the annular tube 15. The tilted setting of the nozzles 16 ensures the airflow angle of the nozzles 16. The air cleaning of the shaft is completed between the shaft entering the shaft-pulling end 2 and the frame 1, avoiding wear of transmission components and contamination of the shaft-pulling device during the shaft-pulling process.

[0032] In this embodiment, as Figures 2 to 8As shown, the guide assembly includes a guide frame 6 fixedly connected to the outside of the fixed frame 3. The guide assembly is used for auxiliary guidance of the shaft before it enters the shaft-pulling end 2. The cross-section of the guide frame 6 is an inverted U-shape, and the top of the guide frame 6 is provided with an arc surface that matches the shape of the middle part of the drive roller 7. One end of the guide frame 6 is fixedly connected to the fixed frame 3 on the side near the shaft-pulling end 2, and the guide frame 6 is entirely surrounded on the outside of the annular tube 15 and the nozzle 16. The guide frame 6 has a through opening 13 corresponding to the orientation of the end of the nozzle 16. A rubber ring 14 is fixedly connected to the top of the through opening 13. The top position of the guide frame 6 is below the top position of the drive roller 7. The end of the guide frame 6 away from the shaft-pulling end 2 is provided with a downwardly inclined guide surface 29. During the preparation for the shaft-pulling operation, the frame 1 and the shaft-pulling end 2 will gradually approach the end of the shaft. The function of the guide frame 6 is to assist in the alignment of the shaft and the drive roller 7. Even if there is a small deviation during the alignment process, it can be corrected by... The guide frame 6 guides and corrects the shaft, ensuring that when the shaft contacts the drive roller 7, it corresponds to the concave position in the middle of the drive roller 7. This avoids the shaft end being difficult to align precisely with the clamping and limiting center of the drive roller 7 and the clamping roller 8, preventing skewing and collisions during shaft removal. It also protects the surface precision of the shaft and prevents damage to the various structures in the shaft remover. The through opening 13 exposes the nozzle 16 on the annular tube 15, which corresponds to the position of the guide frame 6. This allows the airflow from the nozzle 16 to act on the shaft passing above the nozzle 16, ensuring that the cleaning components can still perform their cleaning work normally. The rubber ring 14 prevents damage to the shaft caused by high-frequency vibrations of the fixed frame 3 and the guide frame 6. The rubber ring 14 is made of hard rubber and replaces the external contact between the guide frame 6 and the shaft. When the fixed frame 3 and the guide frame 6 vibrate, it can transmit the vibration to the shaft and prevent damage to the shaft through the material of the rubber ring 14 itself.

[0033] In this embodiment, as Figures 2 to 7As shown, the limiting assembly includes a deflector frame 5 rotatably connected to the outside of the shaft end 2. The limiting assembly is used to drive the clamping roller 8 to clamp and limit the shaft. The middle part of the deflector frame 5 is rotatably connected to the shaft end 2 through a rotating rod, and the deflector frames 5 are symmetrically distributed on both sides of the shaft end 2. The deflector frames 5 are generally L-shaped, and the clamping roller 8 is rotatably connected between the short ends of the two deflector frames 5. The second connecting rod 22 is fixedly connected between the long ends of the deflector frames 5. An electric telescopic rod 4 is rotatably installed at the bottom of the frame 1. A sleeve 21 is fixedly connected to the movable end of the electric telescopic rod 4. The sleeve 21 is sleeved on the second connecting rod 22. When the shaft-pulling end 2 moves to a position corresponding to the end of the shaft, the electric telescopic rod 4 retracts its movable part. Through the transmission of the sleeve 21 and the second connecting rod 22, the two deflecting frames 5 deflect outside the shaft-pulling end 2. Then, the clamping roller 8 between the deflecting frames 5 follows the deflecting frame 5 and cooperates with the drive roller 7 to clamp the end of the shaft. The driving roller 7 and the clamping roller 8 maintain the squeezing force between the shaft and the drive roller 7, so that there is sufficient friction between the drive roller 7 and the shaft to support the displacement of the shaft after the drive roller 7 rotates, and to perform the shaft-pulling operation.

[0034] In this embodiment, as Figures 4 to 6 As shown, the drive assembly includes a servo motor 17 fixedly mounted on the outside of the frame 1. The drive assembly is used to drive the drive roller 7 to rotate and perform the shaft pulling operation. The end of the drive shaft of the servo motor 17 is fixedly connected to a first connecting rod 18. The first connecting rod 18 is located on the outside of the deflection frame 5, and the end of the first connecting rod 18 is fixedly connected to a first bevel gear 19. The rotating shaft connecting the drive roller 7 and the shaft pulling end 2 extends to the outside of the shaft pulling end 2 and is fixedly connected to a second bevel gear 20. The second bevel gear 20 and the first bevel gear 19 mesh with each other. When the shaft pulling operation is required, the servo motor 17 works and drives the first connecting rod 18 and the first bevel gear 19 to rotate through its drive shaft. Then, the drive roller 7 is driven to rotate through the meshing transmission between the first bevel gear 19 and the second bevel gear 20. After the drive roller 7 rotates, the friction between itself and the shaft causes the shaft to be displaced, thus performing the shaft pulling operation. The first connecting rod 18 is located on the outside of the deflection frame 5 to provide sufficient space for the deflection of the deflection frame 5 and avoids obstructing the deflection action of the deflection frame 5.

[0035] In this embodiment, as Figures 4 to 11As shown, the transmission assembly includes cams 23 symmetrically arranged on the rotating shaft of the drive roller 7 and protrusions 24 fixedly connected to the outside of the movable seat 12. The transmission assembly is used to drive the fixed frame 3 and the guide frame 6 to generate vibrations that can be transmitted to the shaft by means of the rotation of the drive roller 7. The rotating shaft rotatably connected between the drive roller 7 and the shaft end 2 extends to the outside of the shaft end 2. The cams 23 are located on the outside of the shaft end 2 and have grooves 28 that match the shape of the protrusions 24. The movable seat 12 has a cavity 26 that matches the shape of the shaft end 2. The movable seat 12 has evenly distributed springs 27 fixedly connected between the movable seat 12 and the shaft end 2. A limit block 25 is fixedly connected to the bottom of the movable seat 12. A limit groove that matches the shape of the limit block 25 is opened on the shaft end 2. The limit block 25 is slidably sleeved in the limit groove. The movable seat 12 and the shaft end 2 can slide up and down through the limit block 25 and the limit groove. The connection allows the movable seat 12 to move up and down outside the shaft end 2. While the drive roller 7 rotates, it also drives the cam 23 to rotate. As the contact position between the outer side of the cam 23 and the corresponding position of the protrusion 24 changes, the groove 28 and the protrusion on the cam 23 switch back and forth, so that the protrusion 24 is intermittently squeezed by the cam 23, which drives the movable seat 12 to rise as a whole, and stretches the spring 27, which also drives the position of the fixed frame 3 and the guide frame 6 to rise. When the position of the protrusion 24 corresponds to the position of the groove 28, the squeezing force of the cam 23 on the protrusion 24 is removed, and the movable seat 12 returns to its original position under the action of the spring 27. Finally, the movable seat 12 drives the fixed frame 3 and the guide frame 6 to move up and down back and forth, which causes the guide frame 6 to vibrate and transmits the vibration to the shaft through the contact between the guide frame 6 and the shaft, so as to prevent the shaft from seizing due to excessive static friction during the pulling process.

[0036] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0037] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A shaft puller for a toilet paper machine, comprising a frame, characterized in that, One end of the frame is open and has a pull-out end. The pull-out end has symmetrical movable seats. The ends of the two movable seats are fixedly connected to a fixed frame. The inner side of the fixed frame is fitted with a cleaning component, and the outer side of the fixed frame is fixedly connected to a guide component. The outer side of the pull-out end is rotatably connected to a limit component, and the outer side of the pull-out end is provided with a drive component. The inner side of the pull-out end is rotatably connected to a drive roller associated with the drive component. The limit component is rotatably connected to a clamping roller. The drive roller and the movable seats are provided with a transmission component that is interconnected. The cleaning assembly includes an air pump fixedly mounted on the outside of the frame and an annular tube sleeved inside the frame. The cleaning assembly is used for air jet cleaning during the shaft removal process. The guide assembly includes a guide frame that is fixedly connected to the outside of the fixed frame. The guide assembly is used for auxiliary guidance of the shaft before it enters the shaft end. The limiting assembly includes a deflector frame externally rotatably connected to the shaft end. The limiting assembly is used to drive the clamping roller to clamp and limit the shaft. The drive assembly includes a servo motor fixedly mounted externally to the frame. The drive assembly is used to drive the drive roller to rotate and perform the shaft pulling operation. The transmission assembly includes cams symmetrically arranged on the shaft of the drive roller and protrusions fixedly connected to the outside of the movable seat. The transmission assembly is used to drive the shaft to vibrate.

2. The shaft puller for a toilet paper machine according to claim 1, characterized in that, The inner side of the frame is rotatably connected with evenly distributed support rollers, and a contact sensor is fixedly connected to the inner side of the end of the frame away from the pull shaft. The drive roller, clamping roller and support roller are all provided with recesses on their outer sides.

3. The shaft puller of the toilet paper machine according to claim 1, characterized in that, The annular tube is fixedly connected with evenly distributed nozzles, the ends of which are inclined away from the position of the pull shaft end. The output end of the air pump is connected to the annular tube through a pipe. The space of the inner ring of the annular tube corresponds to the position between the drive roller and the clamping roller.

4. The shaft puller of the toilet paper machine according to claim 1, characterized in that, The guide frame has an inverted U-shaped cross section, and the top of the guide frame is provided with an arc surface that matches the shape of the middle part of the drive roller. One end of the guide frame is fixedly connected to the fixed frame on the side near the pull shaft end, and the guide frame as a whole surrounds the outside of the annular tube and the nozzle.

5. The shaft puller of the toilet paper machine according to claim 4, characterized in that, The guide frame has a through opening corresponding to the orientation of the nozzle end. A rubber ring is fixedly connected to the top of the through opening. The top of the guide frame is located below the top of the drive roller. The end of the guide frame away from the pull shaft end is provided with a downwardly inclined guide surface.

6. The shaft puller of the toilet paper machine according to claim 1, characterized in that, The middle part of the deflection frame is rotatably connected to the pull shaft end via a rotating rod, and the deflection frames are symmetrically distributed on both sides of the pull shaft end. The deflection frame as a whole is L-shaped, and a clamping roller is rotatably connected between the short ends of the two deflection frames.

7. The shaft puller for a toilet paper machine according to claim 6, characterized in that, A second connecting rod is fixedly connected between the long sides of the deflection frame. An electric telescopic rod is rotatably installed at the bottom of the frame. A sleeve is fixedly connected to the movable part of the electric telescopic rod, and the sleeve is fitted over the second connecting rod.

8. The shaft puller for a toilet paper machine according to claim 1, characterized in that, A first connecting rod is fixedly connected to the end of the drive shaft of the servo motor. The first connecting rod is located on the outside of the deflection frame, and a first bevel gear is fixedly connected to the end of the first connecting rod. The shaft connecting the drive roller and the pull shaft end extends to the outside of the pull shaft end and is fixedly connected to a second bevel gear. The second bevel gear meshes with the first bevel gear.

9. The shaft puller for a toilet paper machine according to claim 1, characterized in that, The rotating shaft that rotatably connects the drive roller and the puller shaft extends to the outside of the puller shaft. The cam is located on the outside of the puller shaft and has a groove on the cam that matches the shape of the protrusion.

10. The shaft puller of the toilet paper machine according to claim 9, characterized in that, The movable seat has an internal cavity that matches the shape of the pull shaft end, and evenly distributed springs are fixedly connected between the movable seat and the pull shaft end. A limit block is fixedly connected to the bottom of the movable seat, and a limit groove that matches the shape of the limit block is opened on the pull shaft end. The limit block is slidably sleeved in the limit groove.

Images