Tension adjustable mechanism

Abstract

The utility model relates to the field of spreading machine tension mechanisms, and discloses a tension adjustable mechanism which comprises a frame, a motor is fixedly connected to the right side of the frame, a rotating rod is fixedly connected to the driving end of the motor, two belt pulleys are fixedly connected to the outer portion of the rotating rod, and spring wall pulleys are fixedly connected to the front side and the rear side of the top of the frame. The bottoms of the spring chest expanders are fixedly connected with tension springs, the bottoms of the tension springs are fixedly connected with fixing rings, the close sides of the two fixing rings are fixedly connected with supporting plates, and the far sides of the two supporting plates are fixedly connected with sliding blocks. According to the cloth spreading device, the cloth spreading requirements of different materials and technologies can be accurately met, and uniform and moderate cloth tension is guaranteed. The flatness and the cutting precision of the spread cloth are effectively improved, the product quality is further improved, meanwhile, the production process can be optimized, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of tension mechanism of cloth drawing machine, especially tension adjustable mechanism. BACKGROUND

[0002] Cloth drawing machine is an important equipment in the textile and garment industry, which is mainly used to evenly spread the cloth according to the set length, width and layers. Through automatic or semi-automatic operation, the cloth drawing machine can effectively improve the efficiency of the preparation work before cutting, ensure the accuracy and consistency of the subsequent cutting process, and thus improve the quality and speed of the entire production process; the tension adjustable mechanism is an important mechanical device. It is mainly used to accurately control the tension of the material during transmission. Through specific structural design and component cooperation, such as spring, roller and transmission parts, the tension can be flexibly adjusted according to actual needs to ensure the stability of material transmission, avoid material damage, and meet the requirements of different production processes for tension.

[0003] The tension adjusting device of the cloth drawing machine is a component used to control the tension of the cloth on the cloth drawing machine. By sensing the tension of the cloth, adjusting the motor speed or changing the spring tension, etc., the tension of the cloth is adjusted to ensure the constant and stable tension of the cloth during the drawing process, and the quality and precision of the drawing are ensured.

[0004] In the prior art, part of the tension adjustable mechanism relies on the self-weight of the floating roller to apply tension to the tension frame, and the tension value is the weight of the floating roller, which cannot be adjusted at will, resulting in difficulty in accurately adapting the tension when drawing cloth of different materials and process requirements, which is easy to cause excessive stretching or relaxation of the cloth, affecting the flatness and cutting precision of the drawing, and reducing the product quality and production efficiency. Therefore, the tension adjustable mechanism is proposed to solve the above problems. CONTENT OF THE UTILITY MODEL

[0005] In order to make up for the above shortcomings, the utility model provides a tension adjustable mechanism, which aims to improve the problem of difficulty in accurately adapting the tension in the prior art, which is easy to cause excessive stretching or relaxation of the cloth.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] The tension adjustable mechanism comprises a frame, a motor fixedly connected to the right side of the frame, a rotating rod fixedly connected to the driving end of the motor, two belt pulleys fixedly connected to the outside of the rotating rod, a spring tensioner fixedly connected to the top of the frame, a tension spring fixedly connected to the bottom of the spring tensioner, a fixed ring fixedly connected to the bottom of the tension spring, a support plate fixedly connected to the side of the two fixed rings, a sliding block fixedly connected to the side of the two support plates, and a plurality of floating rollers fixedly connected to the side of the two support plates.

[0008] As a further description of the above technical solutions:

[0009] The inner part of one of the sliding blocks is slidably connected to the outer part of one of the pulleys, and the inner part of the other sliding block is slidably connected to the outer part of the other pulley.

[0010] As a further description of the above technical solutions:

[0011] The inner wall of the frame is fixedly connected with a fixed plate on both front and rear sides, and a plurality of fixed rollers are fixedly connected to the proximal side of the two fixed plates.

[0012] As a further description of the above technical solutions:

[0013] The fixed roller is cylindrical in appearance and is made of polyurethane.

[0014] As a further description of the above technical solutions:

[0015] The floating roller is cylindrical in appearance and is made of polyurethane.

[0016] As a further description of the above technical solutions:

[0017] The tension spring is cylindrical in appearance and is made of alloy steel.

[0018] The utility model has the following beneficial effects:

[0019] In the utility model, the force of the spring tensioner is adjusted to pull the tension spring, which is adjusted by pulling the supporting plate, and the supporting plate slides on the pulley through the sliding block, so that the tension is adjusted, and the cloth tensioning requirements of different materials and processes can be accurately matched, and the cloth tension is uniform and moderate. This effectively improves the flatness and cutting accuracy of the cloth, thereby improving product quality, optimizing production process and improving production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 The utility model provides a three-dimensional schematic view of a tension-adjustable mechanism.

[0021] Figure 2 The utility model provides a three-dimensional schematic view of a tension-adjustable mechanism. Figure 1 The utility model provides a three-dimensional schematic view of a tension-adjustable mechanism.

[0022] Figure 3 The utility model provides a three-dimensional schematic view of a tension-adjustable mechanism. Figure 1 The utility model provides a three-dimensional schematic view of a tension-adjustable mechanism.

[0023] LEGEND:

[0024] 1, frame; 2, motor; 3, rotating rod; 4, pulley; 5, spring tensioner; 6, tension spring; 7, fixed ring; 8, support plate; 9, sliding block; 10, floating roller; 11, fixed plate; 12, fixed roller. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0026] Referring to Figures 1 to 3 An embodiment provided by the utility model: tension adjustable mechanism, including frame 1, frame 1 as basic support structure, the right side of frame 1 is fixedly connected with motor 2, motor 2 drives rotating rod 3 to rotate, the driving end of motor 2 is fixedly connected with rotating rod 3, rotating rod 3 drives pulley 4 to drive, the outside of rotating rod 3 is fixedly connected with two pulleys 4, pulley 4 provides the position of sliding for sliding block 9, the top of frame 1 is fixedly connected with spring tensioner 5 on both sides, spring tensioner 5 is the important component of tension adjusting assembly, the bottom of spring tensioner 5 is fixedly connected with tension spring 6, and floating roller 10 is connected through tension spring 6;

[0027] The bottom of tension spring 6 is fixedly connected with fixed ring 7, fixed ring 7 is the element of connecting support plate 8, two fixed rings 7 are fixedly connected with support plate 8 on the side close to each other, support plate 8 provides support and fixing effect for floating roller 10, the side far from each other of two support plates 8 is fixedly connected with sliding block 9, and support plate 8 is better stably slid through sliding block 9, the side close to each other of two support plates 8 is fixedly connected with a plurality of floating rollers 10, floating roller 10 can rotate freely within a certain range, so as to better adapt to the tension change and transmission of materials;

[0028] The inside of one of sliding blocks 9 is slidably connected to the outside of one of pulleys 4, and the inside of the other sliding block 9 is slidably connected to the outside of the other pulley 4, so that the sliding block 9 does not appear excessive wear in the long-term sliding process, and the connection accuracy and smoothness are affected, the inner wall of frame 1 is fixedly connected with fixed plate 11 on both sides, fixed plate 11 plays a key supporting and positioning role in the mechanism, the side close to each other of two fixed plates 11 is fixedly connected with a plurality of fixed rollers 12, and the fixed roller 12 plays a positioning role in the process of drawing cloth, as described above.

[0029] The fixed roller 12 is cylindrical in appearance, and the cylindrical surface is smooth and has elasticity, and the material of the fixed roller 12 is polyurethane, so that the impact force in the material conveying process can be effectively buffered when the material contacts the fixed roller 12, and the damage and scratches on the surface of the material are reduced. The floating roller 10 is cylindrical in appearance, so that the floating roller 10 can provide uniform support force when contacting the material such as cloth, so as to avoid wrinkles or deformation of the material in the conveying process due to uneven force. The material of the floating roller 10 is polyurethane, so that the surface of the floating roller 10 can withstand frequent friction without being easily worn out during long-term contact and relative sliding between the floating roller 10 and the material, thereby effectively prolonging the service life of the floating roller 10. The tension spring 6 is circular in appearance, which reduces the friction in the stretching and contraction process. The material of the tension spring 6 is alloy steel, which can withstand a large tensile force without permanent deformation.

[0030] Working principle: when the tension of the cloth stretching machine needs to be adjusted, the force of the spring tensioner 5 is adjusted to pull the tension spring 6, so that the tension spring 6 adjusts by pulling the supporting plate 8, and at the same time the supporting plate 8 slides on the pulley 4 through the sliding block 9, thereby achieving the effect of adjusting the tension. When the pulling force of the spring tensioner 5 is 0, due to the self-gravity of the floating roller 10, it is at the bottom of the frame 1, and the tension applied by the cloth through the self-gravity is the largest. When the spring tensioner 5 is adjusted, the upward pulling force of the tensioner is increased, and at this time the tension applied by the cloth is reduced.

[0031] Finally, it should be pointed out that: the above-mentioned is only the preferred embodiment of the present application, and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A tension-adjustable mechanism, comprising a frame (1), characterized in that: A motor (2) is fixedly connected to the right side of the frame (1). A rotating rod (3) is fixedly connected to the drive end of the motor (2). Two pulleys (4) are fixedly connected to the outside of the rotating rod (3). Spring tensioners (5) are fixedly connected to the front and rear sides of the top of the frame (1). A tension spring (6) is fixedly connected to the bottom of the spring tensioner (5). A fixing ring (7) is fixedly connected to the bottom of the tension spring (6). A support plate (8) is fixedly connected to the adjacent side of the two fixing rings (7). A slider (9) is fixedly connected to the distant side of the two support plates (8). Multiple floating rollers (10) are fixedly connected to the adjacent side of the two support plates (8).

2. The tension-adjustable mechanism according to claim 1, characterized in that: One of the sliders (9) is internally slidably connected to the outside of one of the pulleys (4), and the other slider (9) is internally slidably connected to the outside of the other pulley (4).

3. The tension-adjustable mechanism according to claim 1, characterized in that: The inner wall of the frame (1) is fixedly connected to both the front and rear sides with fixing plates (11), and multiple fixing rollers (12) are fixedly connected to the adjacent side of the two fixing plates (11).

4. The tension-adjustable mechanism according to claim 3, characterized in that: The fixed roller (12) is cylindrical in shape and is made of polyurethane.

5. The tension-adjustable mechanism according to claim 1, characterized in that: The floating roller (10) is cylindrical in shape and is made of polyurethane.

6. The tension-adjustable mechanism according to claim 1, characterized in that: The tension spring (6) is round in shape and is made of alloy steel.

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