Pressing mechanism for winding device

Abstract

The utility model relates to the field of winding machines, and discloses a hold-down mechanism for a winding device, which is characterized in that the inward sides of two support frames are provided with mounting frames in a left-right sliding manner, the left end between the two mounting frames is rotatably provided with a hold-down roller through a shaft lever, and the right side between the two mounting frames is provided with a connecting plate; a fixing plate is fixed between the two supporting frames, the four corners of the fixing plate are each provided with an adjusting air cylinder, push rods of the adjusting air cylinders penetrate through the fixing plate and are connected with an abutting plate, and a plurality of pressing springs distributed at equal intervals are installed between the abutting plate and the connecting plate; the position of the abutting plate can be rapidly changed according to needs, when the tensile force is reduced, the pressing roller, the mounting frame and the connecting plate can integrally move towards the upper left and make contact with the winding material again, the tensile force is changed, the winding material is in a tensioned state, and then it is guaranteed that the material on the winding roller is wound more tightly.

Description

Technical Field

[0001] The utility model relates to the field of winding machines, in particular to a clamping mechanism for a winding device. Background Art

[0002] The winding device generally rolls the formed material into a coil by mechanical means, and is widely used in paper rolls, cloth rolls, plastic rolls, and metal coil processing production lines. In the Chinese utility model patent with announcement number CN206645612U, a clamping device for a winder is disclosed, including a clamping roller. The clamping roller is pressed on the bottom roller by the force of the rear spring acting on the clamping rod. The clamping force can be adjusted, and the position can also be adjusted. It has strong applicability, simple structure, and is easy to use. After long-term use, the elastic force of the spring will be reduced. At this time, the position of the clamping roller will change, which will reduce the clamping force of the clamping roller. When adjusting, it is necessary to manually unscrew the screws and change the position of the spring fixing frame, thereby changing the clamping force of the clamping roller, which makes the operation more troublesome. To this end, we designed a clamping mechanism for a winding device. Utility Model Content

[0003] In order to solve the technical problem that the elastic force of the spring will be reduced after long-term use, the position of the clamping roller will change, and the clamping force of the clamping roller will be reduced, the utility model provides a clamping mechanism for a winding device.

[0004] The utility model is implemented by the following technical scheme: a clamping mechanism for a winding device, including two symmetrically arranged front and rear support frames, the inner sides of the two support frames are both slidably installed with mounting frames, and a clamping roller is rotatably installed at the left end between the two mounting frames through an axle rod, a connecting plate is installed on the right side between the two mounting frames, a fixing plate is fixed between the two support frames, and an adjusting cylinder is respectively installed at the four corners of the fixing plate, the push rod of the adjusting cylinder passes through the fixing plate and is connected to an abutment plate, and a plurality of equally spaced compression springs are installed between the abutment plate and the connecting plate.

[0005] As a further improvement of the above scheme, the upper left side of the two support frames is extended to form an extension plate, and the front and rear sides of the extension plate are penetrated to form guide strip holes, and a guide shaft is fixed between the two mounting frames, and the front and rear sides of the guide shaft are located outside the mounting frame, and the front and rear ends of the guide shaft are respectively slidably placed in the two guide strip holes, and the pressure roller can move left and right along the guide strip holes, and the pressure roller and the mounting frame will cause the pressure spring to be in a compressed state under the action of their own gravity, and the pressure roller contacts the winding material and puts it in a tensioned state. As more and more material is wound on the winding roller, its outer diameter increases, which increases the pressure between it and the pressure roller, and the pressure roller can move to the left to a certain extent, so that it is in a tensioned state, but it will not cause tearing due to excessive tension.

[0006] As a further improvement of the above scheme, the mounting frame is L-shaped, the connecting plate is fixed at the bottom between the two mounting frames, and the guide shaft is fixed in the middle of the bottom end of the mounting frame, thereby increasing the connection area and facilitating the installation and disassembly of the mounting frame.

[0007] As a further improvement of the above scheme, a plurality of equally spaced circular holes are formed through the upper and lower surfaces of the abutment plate, and the circular holes extend downward through the upper and lower surfaces of the fixed plate. A plurality of equally spaced guide rods are installed under the connecting plate, and the lower ends of the guide rods pass through the circular holes on the abutment plate and the fixed plate and are placed under the fixed plate to facilitate the up and down movement of the guide rods, thereby enabling the positions of the clamping roller and the mounting frame to be adjusted as needed, so that the clamping roller can adaptively adjust the clamping of the winding material to put it in a tensioned state.

[0008] As a further improvement of the above scheme, a threaded hole is provided on the downward side surface of the connecting plate, and a threaded section is provided on the upper end of the guide rod. The threaded section is threadedly connected in the threaded hole to facilitate the installation and disassembly of the guide rod and subsequent maintenance.

[0009] As a further improvement of the above scheme, the compression spring is sleeved on the guide rod, and the upper and lower ends of the compression spring are respectively abutted against the connecting plate and the abutment plate, and the three are not connected. The compression spring is sleeved on the guide rod, and the guide rod is connected to the connecting plate, which facilitates the installation and disassembly of the compression spring.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] 1. The utility model is provided with a pressing roller, a mounting frame and a connecting plate that can move left and right. The lower part of the connecting plate is in contact with a pressing spring, so that they can move left and right. The pressing roller can keep the winding material in a tensioned state at all times, and will not cause tearing due to excessive tension.

[0012] 2. By connecting the lower end of the compression spring to the abutment plate, and the abutment plate to the push rod of the adjusting cylinder, the position of the abutment plate can be quickly changed as needed. When the tensioning force is reduced, the compression roller, the mounting frame, and the connecting plate can be moved to the upper left as a whole, and contact the winding material again and change the tensioning force, so that the winding material is in a tensioned state, thereby ensuring that the material on the winding roller is wound more tightly. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of a clamping mechanism for a winding device provided by the utility model;

[0014] Figure 2 for Figure 1 The enlarged structural diagram at A in the middle;

[0015] Figure 3 for Figure 1 The left and right isometric drawings;

[0016] Figure 4 Schematic diagram of the device and the winding device.

[0017] Description of main symbols:

[0018] 1. Support frame; 11. Extension plate; 12. Guide strip hole; 2. Mounting frame; 21. Guide shaft; 3. Pressure roller; 4. Connecting plate; 5. Abutment plate; 6. Adjusting cylinder; 7. Fixing plate; 8. Guide rod; 9. Pressure spring. DETAILED DESCRIPTION

[0019] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0020] Example: Please combine Figure 1-Figure 4 A clamping mechanism for a winding device of this embodiment includes two symmetrically arranged front and rear support frames 1, a mounting frame 2 is slidably installed on the inner side of the two support frames 1, and a clamping roller 3 is rotatably installed on the left end between the two mounting frames 2 through an axle rod, a connecting plate 4 is installed on the right side between the two mounting frames 2, a fixing plate 7 is fixed between the two support frames 1, and an adjusting cylinder 6 is respectively installed at the four corners of the fixing plate 7, a push rod of the adjusting cylinder 6 passes through the fixing plate 7 and is connected to an abutment plate 5, and a plurality of equally spaced clamping springs 9 are installed between the abutment plate 5 and the connecting plate 4.

[0021] The upper left sides of the two support frames 1 are extended to form an extension plate 11, and guide strip holes 12 are formed on the front and rear sides of the extension plate 11. A guide shaft 21 is fixed between the two mounting frames 2, and the front and rear sides of the guide shaft 21 are outside the mounting frame 2, and the front and rear ends of the guide shaft 21 are respectively slidably placed in the two guide strip holes 12, and the clamping roller 3 can move left and right along the guide strip hole 12, and the clamping roller 3 and the mounting frame 2 will cause the clamping spring 9 to be in a compressed state under the action of their own gravity. The clamping roller 3 contacts the winding material and puts it in a tensioned state. As more and more material is wound on the winding roller, its outer diameter increases, which increases the pressure between it and the clamping roller 3, and the clamping roller 3 can move to the left to a certain extent, so that it is in a tensioned state, but it will not cause tearing due to excessive tension.

[0022] The mounting frame 2 is L-shaped, the connecting plate 4 is fixed at the bottom between the two mounting frames 2, and the guide shaft 21 is fixed at the middle of the bottom of the mounting frame 2, which increases the connection area and facilitates the installation and removal of the mounting frame 2.

[0023] A plurality of equally spaced circular holes are formed through the upper and lower surfaces of the abutment plate 5, and the circular holes extend downward through the upper and lower surfaces of the fixed plate 7. A plurality of equally spaced guide rods 8 are installed under the connecting plate 4. The lower ends of the guide rods 8 pass through the circular holes on the abutment plate 5 and the fixed plate 7 and are placed under the fixed plate 7 to facilitate the up and down movement of the guide rods 8, thereby enabling the positions of the pressure roller 3 and the mounting frame 2 to be adjusted as needed, so that the pressure roller 3 can adaptively adjust the pressure on the winding material to put it in a tensioned state.

[0024] A threaded hole is provided on the downward side surface of the connecting plate 4, and a threaded section is provided on the upper end of the guide rod 8. The threaded section is threadedly connected in the threaded hole, which is convenient for installation and disassembly of the guide rod 8 and subsequent maintenance.

[0025] The compression spring 9 is sleeved on the guide rod 8, and the upper and lower ends of the compression spring 9 are respectively abutted against the connecting plate 4 and the abutment plate 5, and the three are not connected. The compression spring 9 is sleeved on the guide rod 8, and the guide rod 8 is connected to the connecting plate 4, which is convenient for the installation and disassembly of the compression spring 9.

[0026] The implementation principle of a clamping mechanism for a winding device in the embodiment of the present application is: in actual use, the clamping mechanism is arranged on the front side of the winding device (such as Figure 4As shown, first start the regulating cylinder 6 and extend the push rod of the regulating cylinder 6, so that the surface of the pressing roller 3 contacts the lower surface of the winding material, and the winding material is in a tensioned state. Since the pressing roller 3, the mounting frame 2, and the connecting plate 4 are all designed to be movable left and right, as more and more materials are wound on the winding roller, its outer diameter increases, which increases the pressure between it and the pressing roller 3. The pressing roller 3 can move to the left to a certain extent, so that it is in a tensioned state, but it will not be torn due to excessive tension.

[0027] When the elastic force of the compression spring 9 decreases after long-term use, the compression roller 3 moves to the lower right, and the tensioning force on the winding material decreases, the push rod of the adjustment cylinder 6 is extended, so that the compression roller 3, the mounting frame 2, and the connecting plate 4 can be moved to the upper left as a whole, and contact the winding material again, so that it can be quickly adjusted and the winding material is in a tensioned state;

[0028] By setting a pressing roller 3 that can move left and right, a mounting frame 2, and a connecting plate 4, the lower part of the connecting plate 4 is in contact with a pressing spring 9, so that they can move left and right, and the pressing roller 3 can keep the winding material in a tensioned state at all times, and will not cause tearing due to excessive tension;

[0029] By connecting the lower end of the clamping spring 9 to the abutment plate 5, and the abutment plate 5 to the push rod of the adjusting cylinder 6, the position of the abutment plate 5 can be quickly changed as needed. When the tensioning force is reduced, the clamping roller 3, the mounting frame 2, and the connecting plate 4 can be moved to the upper left as a whole, and contact the winding material again and change the size of the tensioning force, so that the winding material is in a tensioned state, thereby ensuring that the material on the winding roller is wound more tightly.

[0030] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A clamping mechanism for a winding device, comprising two symmetrically arranged front and rear support frames (1), characterized in that: The two support frames (1) are both slidably mounted with mounting frames (2) on their inner sides, and a pressure roller (3) is rotatably mounted on the left end between the two mounting frames (2) via an axle rod, a connecting plate (4) is mounted on the right side between the two mounting frames (2), a fixing plate (7) is fixed between the two support frames (1), and an adjusting cylinder (6) is respectively mounted at the four corners of the fixing plate (7), a push rod of the adjusting cylinder (6) passes through the fixing plate (7) and is connected to an abutment plate (5), and a plurality of equally spaced compression springs (9) are mounted between the abutment plate (5) and the connecting plate (4).

2. A clamping mechanism for a winding device as claimed in claim 1, characterized in that: The upper left portions of the two support frames (1) are extended to form an extension plate (11), and the extension plate (11) is penetrated by guide strip holes (12) on both the front and rear sides; A guide shaft (21) is fixed between the two mounting frames (2), the front and rear sides of the guide shaft (21) are located outside the mounting frames (2), and the front and rear ends of the guide shaft (21) are respectively slidably placed in the two guide bar holes (12).

3. A clamping mechanism for a winding device as claimed in claim 2, characterized in that: The mounting frame (2) is of an L-shaped structure, the connecting plate (4) is fixed at the bottom end between the two mounting frames (2), and the guide shaft (21) is fixed at the middle of the bottom end of the mounting frame (2).

4. A clamping mechanism for a winding device as claimed in claim 1, characterized in that: The upper and lower surfaces of the abutment plate (5) are penetrated by a plurality of circular holes distributed at equal intervals, and the circular holes extend downwardly through the upper and lower surfaces of the fixing plate (7); a plurality of guide rods (8) distributed at equal intervals are installed below the connection plate (4); the lower ends of the guide rods (8) pass through the circular holes on the abutment plate (5) and the fixing plate (7) and are placed below the fixing plate (7).

5. A clamping mechanism for a winding device as claimed in claim 4, characterized in that: A threaded hole is provided on the downwardly facing surface of the connecting plate (4), and a threaded section is provided on the upper end of the guide rod (8), which is threadedly connected in the threaded hole.

6. A clamping mechanism for a winding device as claimed in claim 5, characterized in that: The compression spring (9) is sleeved on the guide rod (8), and the upper and lower ends of the compression spring (9) are respectively in contact with the connecting plate (4) and the contact plate (5), and the three are not connected.

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