A tension roll changing mechanism for a papermaking machine

Abstract

The utility model relates to paper machine roll changing device technical field discloses a kind of papermaking equipment's tension roller roll changing mechanism, including supporting assembly and limiting component and adjusting assembly, the supporting assembly includes truss guide rail, the both sides of the truss guide rail are fixedly assembled with limit switch, the outer wall of the truss guide rail is equipped with limit slot, the outer wall of the truss guide rail is fixedly assembled with speed reducer. The papermaking equipment's tension roller roll changing mechanism, by the supporting assembly, truss guide rail, limit switch, limit slot, speed reducer, sprocket, chain, limiting component, track beam, roller structure being set, so that the device in use process, user can be by lifting hook to lift tension roller, both can conveniently use user to carry out netting operation to tension roller, it is also convenient for user to install tension roller, to reduce the work load of user, to improve the work efficiency of user and the maintenance efficiency to papermaking equipment.

Description

Technical Field

[0001] This utility model relates to the technical field of paper machine roll changing devices, specifically a tension roll changing mechanism for papermaking equipment. Background Technology

[0002] A paper machine is a general term for a complete set of equipment that links different parts of the pulp to form a paper web. It includes main components such as the headbox, wire section, press section, dryer section, calender, winding machine, and drive section, as well as auxiliary systems such as steam, water, vacuum, lubrication, and heat recovery.

[0003] For some specialty papers on the market that require low basis weight and high smoothness, a new structure is adopted in the press section. The press lower ring uses a belt ring instead of the traditional blanket. Because the belt has a smoother surface, it can produce paper with higher smoothness and reduce the occurrence of paper defects, among other advantages. However, when maintaining such equipment and components, the belt is thicker and harder than the traditional blanket, making it impossible to fold and cover the wire. This causes inconvenience, especially for the tension roll wire covering on the first floor, and reduces the maintenance efficiency of the operators. Therefore, we propose a tension roll changing mechanism for papermaking equipment. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this utility model provides a tension roll changing mechanism for papermaking equipment, thereby solving the problems mentioned in the background.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a tension roll changing mechanism for papermaking equipment, comprising a support assembly, a limiting assembly, and an adjusting assembly. The support assembly includes a truss guide rail, with limit switches fixedly mounted on both sides of the truss guide rail. A limit groove is formed on the outer wall of the truss guide rail, and a reduction motor is fixedly mounted on the outer wall of the truss guide rail. A sprocket is fixedly mounted on the output shaft of the reduction motor, and a chain is meshed on the outer wall of the sprocket. The limiting assembly includes a track beam, the outer wall of which is provided with rollers, and a limiting rod is fixedly mounted on the top of the track beam.

[0006] Through the above technical solution, the structure of the support components, limiting components, track beam, rollers, and limiting rods allows the user to move the track beam by operating the geared motor during use, thereby achieving the effect of lifting and replacing the tension roller using the hook. At the same time, the limit switch limits the movement of the track beam, ensuring that the track beam carrying the tension roller will not cause any resistance to the equipment when moving, thus improving the practicality of the hanger and the user's installation efficiency of the tension roller.

[0007] Preferably, the adjusting assembly includes a sleeve fixedly mounted to the top of the track beam. The inner wall of the sleeve is provided with a return spring. The top end of the return spring abuts against a compression ring. A lifting rod is fixedly sleeved on the inner wall of the compression ring. A through hole is opened at the bottom end of the sleeve. A hook is fixedly mounted at the bottom end of the lifting rod. A positioning frame and a cylinder are also fixedly mounted on the top of the track beam. A lifting plate is fixedly mounted on the output shaft of the cylinder. Rotating rods are provided on both sides of the lifting plate. A connecting plate is fixedly mounted on the top end of the lifting rod.

[0008] Through the above technical solution, the sleeve, lifting rod, connecting plate, and positioning frame structure allows the user to rotate the rotating rod by extending and retracting the cylinder output shaft during use. This enables the lifting rod to drive the hook to rise and fall along the inner wall of the sleeve, facilitating the user to adjust the lifting height of the tension roller. This ensures that the device is suitable for different scenarios when the track beam carries the tension roller, improving its practicality and flexibility.

[0009] Preferably, there are two limit switches, and both limit switches are symmetrically distributed along the outer wall of the truss guide rail, and the outer wall of the roller is in rolling connection with the inner wall of the limit groove.

[0010] Through the above technical solution, the setting of the limiting groove and roller structure enables the device to reduce the friction generated by the track beam during operation by using the roller to roll along the inner wall of the limiting groove, thereby ensuring the smooth operation of the device and extending the service life of the truss guide rail and roller. The limit switch can limit the movement distance of the track beam, thereby ensuring that the device can accurately feed the tension roll into the papermaking equipment to complete the docking operation, improving the accuracy and automation of the device.

[0011] Preferably, the end of the chain furthest from the sprocket is fixedly assembled to the outer wall of the track beam, and the outer wall of the track beam is slidably connected to the outer wall of the truss guide rail.

[0012] The above technical solution utilizes a chain and track beam structure. The rotation of the sprocket causes the chain to move under the influence of transmission, thus ensuring that the track beam can carry the tension roller during the hoisting process, achieving the effect of docking with the equipment. This also makes it easier for users to perform netting operations on the tension roller, thereby ensuring the normal operation of the device.

[0013] Preferably, the top of the lifting plate has a circular hole, and the inner wall of the circular hole is slidably connected to the outer wall of the limiting rod.

[0014] Through the above technical solution, the lifting plate structure allows the cylinder to rotate the rotating rod during operation, thereby adjusting the lifting height of the two hooks and ensuring that the tension roller does not tilt during lifting, thus improving the stability of the tension roller during lifting.

[0015] Preferably, the extrusion ring is made of rubber, and the outer wall of the extrusion ring is slidably connected to the inner wall of the sleeve.

[0016] Through the above technical solution, by setting the compression ring structure, the lifting rod will drive the compression ring to rise and fall synchronously during the lifting process, thereby compressing the compression ring and the return spring, ensuring the normal lifting of the lifting rod. When the cylinder output shaft retracts, both the lifting rod and the compression ring can return to their original positions, thus ensuring that the subsequent use of the device will not be affected.

[0017] Compared with the prior art, this utility model provides a tension roll changing mechanism for papermaking equipment, which has the following advantages: 1. The tension roll changing mechanism for papermaking equipment, through the setting of support components, truss guide rails, limit switches, limit grooves, geared motors, sprockets, chains, limit components, track beams, and roller structures, allows the user to lift the tension roll using a hook during use. This facilitates the user's wire-fitting operation and installation of the tension roll, thereby reducing the user's workload and improving the user's work efficiency and the maintenance efficiency of the papermaking equipment. 2. The tension roll changing mechanism for papermaking equipment, through its adjustable components, sleeve, lifting rod, connecting plate, positioning frame, and rotating rod structure, allows the user to rotate the rotating rod via cylinder operation during the hoisting process. This enables the height of both the lifting rod and the hook to be adjusted, ensuring that the tension roll does not collide with other equipment and facilitating the user's hoisting operation of the tension roll, thereby improving the practicality and flexibility of the device. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a side view of the structure of this utility model; Figure 3 This is a partial cross-sectional structural diagram of the present invention; Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0019] The components include: 1. Support assembly; 101. Truss guide rail; 102. Limit switch; 103. Limit groove; 104. Gear motor; 105. Sprocket; 106. Chain; 2. Limit assembly; 201. Track beam; 202. Roller; 203. Limit rod; 3. Adjustment assembly; 301. Sleeve; 302. Lifting rod; 303. Connecting plate; 304. Positioning frame; 305. Rotating rod; 306. Cylinder; 307. Lifting plate; 308. Return spring; 309. Extrusion ring; 310. Through hole; 311. Hook. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figure 1-4 As shown, the present invention provides a tension roll changing mechanism for papermaking equipment, including a support assembly 1, a limiting assembly 2, and an adjusting assembly 3. The support assembly 1 includes a truss guide rail 101, with limit switches 102 fixedly mounted on both sides of the truss guide rail 101. A limit groove 103 is formed on the outer wall of the truss guide rail 101. A reduction motor 104 is fixedly mounted on the outer wall of the truss guide rail 101. A sprocket 105 is fixedly mounted on the output shaft of the reduction motor 104. A chain 106 is meshed on the outer wall of the sprocket 105. The limiting component 2 includes a track beam 201, with rollers 202 on the outer wall of the track beam 201, and a limiting rod 203 fixedly mounted on the top of the track beam 201.

[0022] The advantages are that, through the structure of the support component 1, the limiting component 2, the track beam 201, the roller 202, and the limiting rod 203, the user can move the track beam 201 by operating the reduction motor 104 during use of the hanger, thereby achieving the effect of lifting and replacing the tension roller through the hook 311. At the same time, the limit switch 102 is used to limit the movement of the track beam 201, ensuring that the track beam 201 carrying the tension roller will not cause resistance to the equipment when moving, thus improving the practicality of the hanger and the user's installation efficiency of the tension roller.

[0023] Specifically: The adjusting component 3 includes a sleeve 301 fixedly mounted to the top of the track beam 201. The inner wall of the sleeve 301 is provided with a return spring 308. The top of the return spring 308 abuts against a compression ring 309. A lifting rod 302 is fixedly sleeved on the inner wall of the compression ring 309. A through hole 310 is opened at the bottom end of the sleeve 301. A hook 311 is fixedly mounted at the bottom end of the lifting rod 302. A positioning frame 304 and a cylinder 306 are also fixedly mounted on the top of the track beam 201. A lifting plate 307 is fixedly mounted on the output shaft of the cylinder 306. A rotating rod 305 is provided on both sides of the lifting plate 307. A connecting plate 303 is fixedly mounted on the top end of the lifting rod 302.

[0024] The advantage is that, through the structure of sleeve 301, lifting rod 302, connecting plate 303, and positioning frame 304, the user can rotate the rotating rod 305 by extending and retracting the output shaft of cylinder 306 during use. This allows the lifting rod 302 to drive the hook 311 to rise and fall along the inner wall of sleeve 301, making it convenient for the user to adjust the lifting height of the tension roller. This ensures that the device is suitable for different scenarios when the track beam 201 carries the tension roller, improving the practicality and flexibility of the device.

[0025] Specifically: There are two limit switches 102, and both limit switches 102 are symmetrically distributed along the outer wall of the truss guide rail 101. The outer wall of the roller 202 is in rolling connection with the inner wall of the limit groove 103.

[0026] The advantages are that, through the structure of the limiting groove 103 and the roller 202, the device reduces the friction generated by the track beam 201 during operation by having the roller 202 roll along the inner wall of the limiting groove 103. This ensures the smoothness of the device's operation and extends the service life of the truss guide rail 101 and the roller 202. The limit switch 102 can limit the movement distance of the track beam 201, thereby ensuring that the device can accurately feed the tension roll into the papermaking equipment to complete the docking operation, thus improving the accuracy and automation of the device.

[0027] Specifically: the end of the chain 106 away from the sprocket 105 is fixedly assembled to the outer wall of the track beam 201, and the outer wall of the track beam 201 is slidably connected to the outer wall of the truss guide rail 101.

[0028] The advantage is that, through the structure of the chain 106 and the track beam 201, the rotation of the sprocket 105 causes the chain 106 to move under the influence of transmission, thereby ensuring that the track beam 201 can carry the tension roller during the hoisting process, achieving the effect of docking with the equipment. This makes it easier for users to complete the netting operation on the tension roller, thus ensuring the normal operation of the device.

[0029] Specifically: The top of the lifting plate 307 has a round hole, and the inner wall of the round hole is slidably connected to the outer wall of the limiting rod 203.

[0030] The advantage is that, through the structure of the lifting plate 307, the cylinder 306 can drive the rotating rod 305 to rotate during operation, thereby adjusting the lifting height of the two hooks 311, ensuring that the tension roller will not tilt during the lifting process, and thus improving the stability of the tension roller during the lifting process.

[0031] Specifically: the extrusion ring 309 is made of rubber, and the outer wall of the extrusion ring 309 is slidably connected to the inner wall of the sleeve 301.

[0032] The advantage is that, through the structure of the compression ring 309, the lifting rod 302 will drive the compression ring 309 to rise and fall synchronously during the lifting process, thereby compressing the return spring 308 and ensuring the normal lifting of the lifting rod 302. When the output shaft of the cylinder 306 retracts, both the lifting rod 302 and the compression ring 309 can return to their original positions, thus ensuring that the subsequent use of the device will not be affected.

[0033] Working principle: After assembling the device, the user can first use the geared motor 104 to rotate the sprocket 105, which in turn causes the chain 106 to move the track beam 201, making the track beam 201 fit against the outer wall of another limit switch 102. At this time, the hook 311 is misaligned with the papermaking equipment. The user can use the cylinder 306 to raise and lower the lifting rod 302, making it easy to adjust the height of the hook 311 to complete the hoisting operation, thereby improving the practicality and flexibility of the device. After hoisting, the reverse operation of the geared motor 104 causes the track beam 201 to move towards the papermaking equipment, making it easier for the user to complete the wire-fitting operation on the tension roller on the first floor, and also making it easier for the user to install the tension roller, thereby improving the user's work efficiency.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tension roll changing mechanism for papermaking equipment, comprising a support assembly (1), a limiting assembly (2), and an adjusting assembly (3), characterized in that: The support assembly (1) includes a truss guide rail (101), with limit switches (102) fixedly mounted on both sides of the truss guide rail (101). A limit groove (103) is opened on the outer wall of the truss guide rail (101). A geared motor (104) is fixedly mounted on the outer wall of the truss guide rail (101). A sprocket (105) is fixedly mounted on the output shaft of the geared motor (104). A chain (106) is meshed on the outer wall of the sprocket (105). The limiting component (2) includes a track beam (201), the outer wall of which is provided with rollers (202), and the top of the track beam (201) is fixedly fitted with a limiting rod (203).

2. The tension roll changing mechanism for papermaking equipment according to claim 1, characterized in that: The adjustment assembly (3) includes a sleeve (301) fixedly mounted to the top of the track beam (201). The inner wall of the sleeve (301) is provided with a return spring (308). The top end of the return spring (308) abuts against a compression ring (309). The inner wall of the compression ring (309) is fixedly sleeved with a lifting rod (302). The bottom end of the sleeve (301) is provided with a through hole (310). The bottom end of the lifting rod (302) is fixedly mounted with a hook (311). The top of the track beam (201) is also fixedly mounted with a positioning frame (304) and a cylinder (306). The output shaft of the cylinder (306) is fixedly mounted with a lifting plate (307). Both sides of the lifting plate (307) are provided with rotating rods (305). The top end of the lifting rod (302) is fixedly mounted with a connecting plate (303).

3. The tension roll changing mechanism for papermaking equipment according to claim 1, characterized in that: There are two limit switches (102), and both limit switches (102) are symmetrically distributed along the outer wall of the truss guide rail (101). The outer wall of the roller (202) is in rolling connection with the inner wall of the limit groove (103).

4. The tension roll changing mechanism for papermaking equipment according to claim 1, characterized in that: The end of the chain (106) away from the sprocket (105) is fixedly assembled to the outer wall of the track beam (201), and the outer wall of the track beam (201) is slidably connected to the outer wall of the truss guide rail (101).

5. A tension roll changing mechanism for papermaking equipment according to claim 2, characterized in that: The top of the lifting plate (307) is provided with a circular hole, and the inner wall of the circular hole is slidably connected to the outer wall of the limiting rod (203).

6. A tension roll changing mechanism for papermaking equipment according to claim 2, characterized in that: The extrusion ring (309) is made of rubber, and the outer wall of the extrusion ring (309) is slidably connected to the inner wall of the sleeve (301).

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