Paper tail pressing wheel device of drying cylinder
By designing a paper tail pressure roller device for the drying cylinder, and using a rotation and translation mechanism to adjust the pressure roller to apply pressure to the paper, the problem of paper guiding angle deviation was solved, the paper was accurately positioned and breakage was reduced, and production efficiency was improved.
Patent Information
- Application Number
- CN202520230942.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-13
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-02-13
AI Technical Summary
The existing paper tail pressure roller device cannot limit the paper guiding angle, resulting in paper guiding angle deviation and paper breakage.
Design a paper tail pressure roller device for drying cylinders. The pressure roller is adjusted to apply pressure to the paper through a rotation mechanism and a translation mechanism to ensure accurate guiding angle. It includes a combination of a bracket, connecting rod, electric push rod and pressure roller to achieve accurate positioning and restraint of the pressure roller with the paper.
It effectively avoids paper guide angle deviation, reduces paper breakage, and improves production efficiency and paper quality.
Smart Images
Figure CN223936898U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of paper tail guiding equipment for drying cylinders, and in particular to a paper tail pressure roller device for drying cylinders. Background Technology
[0002] In the papermaking industry, especially on continuous paper machine production lines, the paper drying process is crucial. Nowadays, paper is produced by spraying pulp in the headbox, vacuum dewatering in the forming wire, and then pressing the paper web through a press cloth to further remove moisture before entering a steam-heated drying cylinder group for final drying.
[0003] Traditional drying cylinder technology involves guiding the wet paper web directly onto the surface of a rotating drying cylinder for drying. During this process, the paper adheres tightly to the cylinder surface to ensure efficient heat transfer. However, during paper feeding, when the paper width increases to approximately 5cm on the drive side, the paper edge may tear along with the paper web, greatly increasing the likelihood of secondary paper breakage. The success of paper feeding depends entirely on probability and the assistance of the production air pipes, which can cause significant economic losses and affect production efficiency.
[0004] Existing paper tail pressure roller devices typically include one or more fixed pressure rollers located at the outlet of the drying cylinder. These rollers apply pressure to the tail of the paper before it completely leaves the drying cylinder, thereby reducing paper tail damage caused by excessive winding. However, they have certain drawbacks in use. Existing drying cylinder paper guide devices cannot restrict the operation according to the guided paper, which can lead to deviations in the paper guiding angle and cause paper breakage. Utility Model Content
[0005] To address the problem that the fixed pressure rollers in current models cannot restrict the operation of the guided paper, which can lead to deviations in the paper guiding angle and cause paper breakage, this utility model provides a paper tail pressure roller device for the drying cylinder.
[0006] To solve the above problems, the technical solution adopted by this utility model is as follows:
[0007] A paper drying cylinder tail pressure roller device includes pressure rollers rotatably mounted on bearing seats at both ends, with the bearing seats fixedly mounted on a movable seat. The movable seat is slidably mounted on a connecting rod. The connecting rod is mounted on a rotating mechanism, which drives the connecting rod to rotate around one end. The paper drying cylinder tail pressure roller device also includes a translation mechanism, which drives the movable seat to translate along the connecting rod. The rotating mechanism drives the movable seat on the connecting rod to rotate around one end of the connecting rod, thereby driving the pressure roller on the connecting rod to apply pressure to the paper. The applied pressure can be adjusted by regulating the rotating mechanism, ensuring that the pressure roller guides the paper in a controlled manner, avoiding deviations in the guidance angle and reducing paper breakage. Simultaneously, the translation mechanism ensures the accuracy of the pressure roller's guidance angle to the paper.
[0008] Preferably, the rotating mechanism includes a bracket; a hinge seat is mounted at one end of the bracket; one end of a connecting rod is hinged to the hinge seat; the piston rod of an electric push rod II is hinged to the bottom surface of the connecting rod; and the cylinder of the electric push rod II is hinged to the bracket. The action of the electric push rod II drives the connecting rod to rotate around the hinge seat.
[0009] Preferably, the support includes a vertical rod; an inclined rod is connected to the upper end of the vertical rod; the inclined rod and the vertical rod are set at an obtuse angle; the cylinder of the electric push rod two is hinged to the side wall of the vertical rod; the hinge seat is installed at the end of the inclined rod. This reasonable arrangement of the support facilitates fixation using the vertical rod while also allowing the pressure roller on the connecting rod to be installed at the paper location, thus facilitating the pressure roller's restraint on the paper when the electric push rod two drives the connecting rod.
[0010] Preferably, the hinge base includes an L-shaped base; a hinge block is bolted to the base; a hinge shaft is provided on the side wall of one end of the connecting rod; the hinge shaft is mounted on the hinge block via a bearing. The L-shaped base design avoids interference when the connecting rod rotates, ensuring smooth rotation of the connecting rod.
[0011] Preferably, the translation mechanism includes connecting seats fixedly mounted on the front and rear side walls of the movable seat; the connecting seats are connected to the piston rod of the electric push rod; the cylinder of the electric push rod is mounted on the side wall of the connecting rod. The electric push rod can be used to drive the movable seat to translate along the connecting rod.
[0012] Preferably, bosses are fixedly provided on both the left and right sides of the movable seat; the overall cross-section of the movable seat is U-shaped; the bearing seat is installed on the bosses of the movable seat; a square tube is fixedly provided in the middle of the bottom surface of the movable seat; and the connecting rod is inserted into the square tube. The bosses ensure the installation space for the pressure roller.
[0013] As can be seen from the above technical solution, the advantages of this utility model include: the rotating mechanism drives the movable seat on the connecting rod to rotate around one end of the connecting rod, thereby driving the pressure roller on the connecting rod to apply pressure to the paper. The applied pressure can be adjusted by adjusting the rotating mechanism, ensuring that the pressure roller guides the paper in a controlled manner, avoiding deviations in the guidance angle and reducing paper breakage. At the same time, the movement of the translation mechanism ensures the accuracy of the pressure roller's guidance angle to the paper. Attached Figure Description
[0014] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 This is a schematic diagram of the structure of this utility model.
[0016] Figure 2 This is a schematic diagram of the structure of the bracket of this utility model.
[0017] Figure 3 This is a schematic diagram of the structure of the hinge seat of this utility model.
[0018] Figure 4 This is a structural schematic diagram of the connecting rod, moving seat, and translation mechanism of this utility model.
[0019] Figure 5 This is a schematic diagram of the structure of the movable seat and pressure roller of this utility model.
[0020] Explanation of main figure symbols
[0021] 1-Bearing housing, 2-Pressure roller, 3-Moving seat, 4-Connecting rod, 5-Bracket, 6-Hinge seat, 7-Electric push rod two, 8-Connecting seat, 9-Electric push rod one;
[0022] 301-Square tube; 401-Hinge shaft; 501-Vertical rod; 502-Diagonal rod; 601-Base; 602-Hinge block. Detailed Implementation
[0023] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.
[0024] like Figure 1 and Figure 2 As shown, a paper drying cylinder tail pressure roller device includes a bracket 5, which includes a vertical rod 501; an inclined rod 502 is connected to the upper end of the vertical rod 501; the inclined rod 502 and the vertical rod 501 are arranged at an obtuse angle; the cylinder of the electric push rod 7 is hinged to the side wall of the vertical rod 501; and the hinge seat 6 is installed at the end of the inclined rod 502.
[0025] like Figure 1 , Figure 3 and Figure 4As shown, the hinge base 6 includes an L-shaped base 601. The vertical section of the base 601 is bolted to the end of the diagonal rod 502, and a hinge block 602 is bolted to the horizontal section of the base 601. A hinge shaft 401 is provided on the side wall of one end of the connecting rod 4. The hinge shaft 401 is mounted on the hinge block 602 via a bearing. The L-shaped base 601 prevents interference when the connecting rod 4 rotates, ensuring smooth rotation of the connecting rod 4. The piston rod of the electric push rod 7 is hinged to the bottom surface of the connecting rod 4.
[0026] like Figure 1 , Figure 4 and Figure 5 As shown, a movable seat 3 is slidably mounted on the connecting rod 4. Bosses are fixedly mounted on both the left and right sides of the movable seat 3 to ensure installation space for the pressure roller 2. The movable seat 3 has a U-shaped cross-section. The bearing seat 1 is mounted on the bosses of the movable seat 3, and the pressure roller 2 is rotatably mounted on the bearing seat 1. A square tube 301 is fixedly mounted in the center of the bottom surface of the movable seat 3. The connecting rod 4 is inserted into the square tube 301. Connecting seats 8 are welded to the front and rear side walls of the movable seat 3. The connecting seats 8 are connected to the piston rod of the electric push rod 9. The cylinder of the electric push rod 9 is hinged to the side wall of the connecting rod 4, enabling the movable seat 3 to move along the connecting rod 4 using the electric push rod 9.
[0027] The well-designed bracket 5 facilitates fixation using the vertical rod 501 and allows for easy installation of the pressure roller 2 on the connecting rod 4 at the paper location. This also facilitates the pressure roller 2's restraint of the paper when the connecting rod 4 is moved by the electric push rod 7. The movement of the electric push rod 7 causes the movable seat 3 on the connecting rod 4 to rotate around the hinge point between the connecting rod 4 and the hinge block 602. This, in turn, causes the pressure roller 2 on the movable seat 3 to apply pressure to the paper, restricting and guiding it. The applied pressure can be adjusted by changing the extension length of the electric push rod 7, ensuring that the pressure roller 2 guides the paper in a controlled manner, preventing deviations in the guidance angle and reducing paper breakage. Simultaneously, the movement of the electric push rod 9 ensures the accuracy of the pressure roller 2's guiding angle on the paper.
[0028] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A paper drying cylinder tail pressure roller device, comprising pressure rollers (2) rotatably mounted on bearing seats (1) at both ends, characterized in that, The bearing seat (1) is fixedly mounted on the movable seat (3); the movable seat (3) is slidably mounted on the connecting rod (4); the connecting rod (4) is mounted on the rotating mechanism; the rotating mechanism is used to drive the connecting rod (4) to rotate around one end; the paper tail pressure roller device of the drying cylinder also includes a translation mechanism; the translation mechanism is used to drive the movable seat (3) to translate along the connecting rod (4).
2. The paper tail pressure roller device for the drying cylinder according to claim 1, characterized in that, The rotating mechanism includes a bracket (5); a hinge seat (6) is installed at one end of the bracket (5); one end of the connecting rod (4) is hinged to the hinge seat (6); the bottom surface of the connecting rod (4) is hinged to the piston rod of the electric push rod II (7); the cylinder of the electric push rod II (7) is hinged to the bracket (5).
3. The paper tail pressure roller device for the drying cylinder according to claim 2, characterized in that, The bracket (5) includes a vertical rod (501); the upper end of the vertical rod (501) is connected to a diagonal rod (502); the diagonal rod (502) and the vertical rod (501) are set at an obtuse angle; the cylinder of the electric push rod (7) is hinged to the side wall of the vertical rod (501); the hinge seat (6) is installed at the end of the diagonal rod (502).
4. The paper tail pressure roller device for the drying cylinder according to claim 3, characterized in that, The hinge seat (6) includes a base (601) with an L-shaped cross section; a hinge block (602) is installed on the base (601) by bolts; a hinge shaft (401) is provided on the side wall of one end of the connecting rod (4); the hinge shaft (401) is installed on the hinge block (602) by bearings.
5. The paper tail pressure roller device for the drying cylinder according to claim 4, characterized in that, The translation mechanism includes connecting seats (8) fixedly mounted on the front and rear side walls of the movable seat (3); the connecting seats (8) are connected to the piston rod of the electric push rod (9); the cylinder of the electric push rod (9) is mounted on the side wall of the connecting rod (4).
6. The paper tail pressure roller device for the drying cylinder according to claim 1, characterized in that, The movable seat (3) has bosses fixed on both the left and right sides; the movable seat (3) has a U-shaped cross section; the bearing seat (1) is installed on the boss of the movable seat (3); a square tube (301) is fixed in the middle of the bottom surface of the movable seat (3); the connecting rod (4) is inserted into the square tube (301).