Tensioning device for cloth guide frame of calender

Abstract

The utility model relates to the technical field of calenders, in particular to a calender cloth guide frame tensioning device which comprises a rack, a rotating shaft is arranged on the upper end face of the rack in a rotating structure mode, a left clamping jaw and a right clamping jaw which are used for clamping the rotating shaft are arranged on the two sides of the rotating shaft, and a mounting box is arranged on the rack in a fixed structure mode. A left rack and a right rack are arranged in the mounting box in a sliding structure mode, a left gear is arranged on the left rack in a meshing mode, a right gear is arranged on the right rack in a meshing mode, and the left gear and the right gear are connected with the mounting box in a rotating structure mode; the left gear and the right gear are each provided with a connecting rod in a hinged structure mode, the other ends of the two connecting rods are hinged to the side wall of a power rod, the power rod is arranged between the left gear and the right gear, downward pulling force is applied to the power rod, and therefore it is guaranteed that the two clamping jaws continuously apply friction force to the rotating shaft through meshing of the gears and the racks; and stable output of the woven sheet is ensured.

Description

Technical field:

[0001] The present application relates to the technical field of calenders, and in particular to a tensioning device for a cloth guide frame of a calender. Background technology:

[0002] The calender is composed of two or more rollers, which are arranged according to the heating method. It can be divided into cold pressing and hot pressing. Cold pressing is suitable for materials that do not require heating, such as graphite film, graphite sheet, absorbing material, shielding material, magnetic material, non-ferrous metal material, etc. Hot pressing is divided into water heating, electric heating, oil heating and electromagnetic heating. They are all machines that press and extend rubber, silicone, silicone rubber, phase change material, PTFE or plastic into a film of a certain thickness and surface shape at a certain temperature, and can coat fiber curtain canvas or steel cord with glue. The calender can be divided into two-roller, three-roller, four-roller and five-roller calenders according to the number of rollers; according to the arrangement of the rollers, it can be divided into "L" type, "T" type, "F" type, "Z" type and "S" type.

[0003] The Chinese utility model patent with application number 201320101382.8 - a tensioning device for a three-roll calender guide frame, includes a hand wheel, a positioning shaft, a positioning sleeve, a cloth-retracting square roller, and a cloth-guide roller. Its characteristics are that a tensioning friction wheel is provided on the outer side of the hand wheels at both ends, and two friction plates are clamped and fixed on the tensioning friction wheel with friction plate fasteners on both sides. The tensioning friction wheel shaft is inserted and fixed in the hand wheel, the right side of the hand wheel is connected to the positioning shaft, the positioning shaft is inserted in the positioning sleeve, the positioning hole on the positioning shaft is positioned with the positioning sleeve, the positioning sleeve is fixedly connected to the cloth-retracting square roller, and the cloth-retracting square roller is fixedly connected to the cloth-guide roller.

[0004] This patent utilizes the cooperation between the friction plate fastener and the friction plate to balance the tension of the cloth guide roller and ensure the production quality of the conveyor belt. However, with long-term production, the friction plate is prone to wear and the friction force is reduced. Ultimately, it is impossible to ensure that the woven sheet in the middle of the conveyor belt continues to have sufficient tension, causing the woven sheet to wrinkle. Utility model content:

[0005] In order to solve the above technical problems, the utility model provides a tensioning device for a calender guide frame, which solves the technical problem that the woven sheet in the middle of the conveyor belt cannot be guaranteed to have sufficient tension due to the wear of the friction sheet. In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] The tensioning device of the calender cloth guide frame comprises:

[0007] A frame, wherein a rotating shaft is arranged on the upper end surface of the frame in a rotating structure manner, and a rotating roller is fixedly arranged outside the rotating shaft;

[0008] An installation box, the installation box is connected to the frame in a fixed structure manner;

[0009] A left clamp and a right clamp for clamping the rotating shaft, wherein the left clamp and the right clamp are respectively arranged on both sides of the rotating shaft;

[0010] The left rack and the right rack are both connected to the mounting box through a sliding structure, and the left rack is arranged on the lower end surface of the left clamping jaw in a fixed structure, and the right clamping jaw is arranged on the lower end surface of the right clamping jaw in a fixed structure;

[0011] The left gear and the right gear are both connected to the mounting box through a rotating structure, and the left gear is connected to the left rack through meshing, and the right gear is connected to the right rack through meshing;

[0012] Connecting rods, one end of the two connecting rods is respectively connected to the left gear and the right gear in an articulated structure;

[0013] A power rod is arranged between the left gear and the right gear. The power rod is connected to the other end of the connecting rod in a hinged structure, and one end of the power rod extends to the outside of the installation box.

[0014] A blocking member, which is arranged in a fixed structure at one end of the power rod away from the installation box;

[0015] A compression spring is sleeved on the outside of the power rod between the blocking member and the installation box.

[0016] Furthermore, a slot for installing the rotating shaft is provided on the upper end surface of the frame.

[0017] Furthermore, slide rails are arranged on both sides of the inner wall of the installation box in the horizontal direction;

[0018] Both sides of the left rack and the right rack are provided with protrusions which are slidably connected with the slide rail.

[0019] Furthermore, the opposite sides of the left clamping jaw and the right clamping jaw are provided with arc-shaped surfaces adapted to the circumferential surface of the rotating shaft.

[0020] Furthermore, the curved surface is fitted with a rubber pad in a fixed structure.

[0021] Furthermore, the blocking member is a pull ring.

[0022] The beneficial effects of the utility model are as follows: by arranging the clamping jaws to clamp the rotating shaft moderately to meet the tensioning force requirements of the woven sheet, the structure is simple and the installation of the rotating shaft is convenient; and the elastic force of the compression spring is utilized to apply a downward pulling force to the power rod, and then through the meshing of the gear and the rack, the two clamping jaws continuously apply a friction force to the rotating shaft to ensure the stable output of the woven sheet.

[0023] The inner wall of the clamping jaw is set as an arc surface, which increases the contact area with the rotating shaft and improves the friction force;

[0024] By setting the rubber pad, the friction resistance is further increased, the tension of the woven sheet is kept moderate and wrinkle-free after the equipment is started. Description of the drawings:

[0025] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0026] Figure 2 It is a structural schematic diagram of the practical installation box.

[0027] In the figure:

[0028] 1. Frame, 2. Shaft, 3. Roller, 4. Mounting box, 5. Left clamp, 6. Right clamp, 7. Left rack, 8. Right rack, 9. Left gear, 10. Right gear, 11. Connecting rod, 12. Power rod, 13. Block, 14. Slide rail, 15. Bump, 16. Rubber pad. Specific implementation method:

[0029] In order to make the purpose, technical scheme and advantages of the implementation of the utility model clearer, the utility model will now be further described in detail with reference to the accompanying drawings and the following examples so that the public can better understand the implementation method of the utility model. The specific implementation scheme of the utility model is as follows:

[0030] The tensioning device of the cloth guide frame of the calender comprises a frame 1, the upper end surface of the frame 1 is provided with a rotating shaft 2 in a rotating structure manner, and the left clamping jaw 5 and the right clamping jaw 6 for clamping the rotating shaft 2 are provided on both sides of the rotating shaft 2; the frame 1 is provided with a mounting box 4 in a fixed structure manner, and the mounting box 4 is provided with a left rack 7 and a right rack 8 in a sliding structure manner, the left rack 7 is arranged on the lower end surface of the left clamping jaw 5 in a fixed structure manner, and the right clamping jaw 6 is arranged on the lower end surface of the right clamping jaw 6 in a fixed structure manner; the left rack 7 is provided with a left gear 9 in a meshing manner, and the right rack 8 is provided with a right gear 10 in a meshing manner, and the left gear 9 and the right gear 10 are both connected to the mounting box 4 in a rotating structure manner; the left gear 9 and the right gear 10 A connecting rod 11 is provided in the form of an articulated structure, and the other ends of the two connecting rods 11 are hingedly connected to the side wall of a power rod 12, and the power rod 12 is arranged between the left gear 9 and the right gear 10. One end of the power rod 12 extends to the outside of the installation box 4 and is fixedly provided with a blocking member 13. A compression spring is sleeved on the outside of the power rod 12 between the blocking member 13 and the installation box 4. The rotating shaft is moderately clamped by arranging a clamping claw to meet the tensioning force requirement of the woven sheet. The structure is simple and the installation of the rotating shaft is convenient. The elastic force of the compression spring is used to apply a downward pulling force to the power rod, and then the two clamping claws are engaged with the rack to ensure that the friction force is continuously applied to the rotating shaft 2 to ensure the stable output of the woven sheet.

[0031] Specifically, a slot for installing the rotating shaft 2 is provided on the upper end surface of the frame 1 to facilitate the replacement of the coil.

[0032] It should be noted that slide rails 14 are arranged on both sides of the inner wall of the installation box 4 in the horizontal direction, and protrusions 15 are arranged in the slide rails 14 through a sliding structure. The protrusions 15 are located on both sides of the left rack 7 and the right rack 8.

[0033] It should be explained that the opposite sides of the left clamping jaw 5 and the right clamping jaw 6 are provided with arc-shaped surfaces adapted to the circumference of the rotating shaft 2, thereby increasing the contact area with the rotating shaft and improving the friction force.

[0034] Furthermore, the curved surface is fitted with a rubber pad 16 in a fixed structure, which further increases the friction resistance, keeps the tension of the woven sheet moderate and prevents it from wrinkling after the device is started.

[0035] Specifically, the blocking member 13 is a pull ring, which facilitates pulling the power rod 12 .

[0036] The working principle and working process of the utility model are as follows:

[0037] First, the power rod 12 is pulled upward by the pull ring 13, at which time the compression spring is further compressed, the power rod 12 drives the connecting rod 11 to rotate upward, the connecting rod 11 drives the left gear 9 and the right gear 10 to rotate, and the left gear 9 and the right gear 10 simultaneously drive the corresponding left rack 7 and the right rack 8 to move outward, thereby opening the left clamping jaw 5 and the right clamping jaw 6, and then placing the rotating shaft 2 carrying the rolled sheet in the card slot;

[0038] Release the pull ring 13, and the compression spring applies pressure to the pull ring 13, driving the power rod 12 to move downward, and then rotates and moves downward by driving the connecting rod 11. The connecting rod 11 drives the left gear 9 and the right gear 10 to rotate. The left gear 9 and the right gear 10 simultaneously drive the corresponding left rack 7 and the right rack 8 to move inward, and the rotating shaft 2 is clamped by the left clamp 5 and the right clamp 6, and the friction force is continuously applied to the rotating shaft 2 to ensure the stable output of the woven sheet.

[0039] In the description of the present invention, it should be understood that the terms "center", "upper", "lower", "left", "right", "front", "back", "lower left", "upper right", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. Although the present invention has been described according to a limited number of embodiments, those skilled in the art, with the benefit of the above description, should understand that other embodiments can be conceived within the scope of the present invention described thereby.

Claims

1. The calender cloth guide frame tensioning device is characterized by: include: A frame (1), wherein a rotating shaft (2) is arranged on the upper end surface of the frame (1) in a rotating structure manner; An installation box (4), the installation box (4) being connected to the frame (1) in a fixed structure manner; A left clamping jaw (5) and a right clamping jaw (6) for clamping the rotating shaft (2), wherein the left clamping jaw (5) and the right clamping jaw (6) are respectively arranged on both sides of the rotating shaft (2); A left rack (7) and a right rack (8), wherein the left rack (7) and the right rack (8) are both connected to the mounting box (4) by means of a sliding structure, and the left rack (7) is arranged on the lower end surface of the left clamping jaw (5) by means of a fixed structure, and the right clamping jaw (6) is arranged on the lower end surface of the right clamping jaw (6) by means of a fixed structure; A left gear (9) and a right gear (10), wherein the left gear (9) and the right gear (10) are both connected to the mounting box (4) by a rotating structure, and the left gear (9) is connected to the left rack (7) by meshing, and the right gear (10) is connected to the right rack (8) by meshing; Connecting rods (11), one end of the two connecting rods (11) is respectively connected to the left gear (9) and the right gear (10) in an articulated structure; A power rod (12), the power rod (12) is arranged between the left gear (9) and the right gear (10), the power rod (12) is connected to the other end of the connecting rod (11) in a hinged structure, and one end of the power rod (12) extends to the outside of the installation box (4); A blocking member (13), the blocking member (13) being arranged in a fixed structure manner at one end of the power rod (12) away from the installation box (4); A compression spring is sleeved on the outside of the power rod (12) between the blocking member (13) and the installation box (4).

2. The calender cloth guide frame tensioning device according to claim 1, characterized in that: The upper end surface of the frame (1) is provided with a slot for installing the rotating shaft (2).

3. The calender cloth guide frame tensioning device according to claim 1, characterized in that: Slide rails (14) are arranged on both sides of the inner wall of the installation box (4) in the horizontal direction; Both sides of the left rack (7) and the right rack (8) are provided with protrusions (15) which are slidably connected to the slide rail (14).

4. The calender cloth guide frame tensioning device according to claim 1, characterized in that: The opposite sides of the left clamping jaw (5) and the right clamping jaw (6) are provided with arc-shaped surfaces adapted to the circumference of the rotating shaft (2).

5. The calender cloth guide frame tensioning device according to claim 4, characterized in that: The curved surface is fitted with a rubber pad (16) in a fixed structure manner.

6. The calender cloth guide frame tensioning device according to claim 4, characterized in that: The blocking member (13) is a pull ring.

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