A tension degree adjusting device for high-temperature cloth impregnation

Abstract

This utility model discloses a tension adjustment device for high-temperature fabric impregnation production, relating to the field of tension adjustment technology. The device includes a crossbeam with an adjustment mechanism above it: a drive assembly comprising a connecting rod fixedly mounted above the crossbeam, a movable frame movably mounted on the top of the connecting rod, a transmission tube inserted above the movable frame, and a drive motor fixedly mounted on the top of the movable frame. The threaded drive characteristic allows the lead screw to achieve continuous axial displacement with the continuous rotation of the transmission tube, rather than relying on discrete threaded holes for positioning. The continuous movement of the lead screw is transmitted to the tripod via a transmission block and transmission shaft, causing the tripod to rotate continuously around the connecting shaft, thereby continuously changing the height of the limiting shaft and continuously adjusting the pressure of the sleeve on the fabric. This mechanical coordination dominated by threaded drive achieves stepless tension adjustment.

Description

Technical Field

[0001] This utility model relates to the field of tension adjustment technology, specifically a tension adjustment device for high-temperature fabric impregnation production. Background Technology

[0002] High-temperature fabrics (such as fiberglass cloth and aramid high-temperature resistant cloth) require coating with adhesives like resin and silicone during the impregnation process to enhance their mechanical properties or temperature resistance. Tension is a critical process parameter: insufficient tension leads to fabric wrinkles and uneven impregnation; excessive tension may cause fiber breakage or fabric stretching deformation. Therefore, a dedicated tension adjustment device needs to be designed to achieve precise and stable control.

[0003] The existing utility model patent with publication number CN211311753U discloses a tension adjustment device for a weaving machine. This device solves two problems: insufficient fabric tension leads to slippage and friction on the winding rollers, affecting fabric quality; and the fabric becomes increasingly unevenly wound, easily forming a spindle shape that is thick in the middle and thin at both ends, also affecting the density of the fabric in the previous process. The device includes two parallel support beams. Two arc-shaped rods are located on the side of the guide roller away from the pressure roller. These two arc-shaped rods are fixed to the two support beams, and a rotating shaft is located at the center of each arc-shaped rod. The rotating shaft is rotatably mounted on the support beams via bearing seats, and support plates are fixed to both ends of the rotating shaft. The support plates are slidably mounted on the arc-shaped rods, and a tension roller is rotatably mounted between the two support plates. A spring compresses the tension roller when the fabric is wound up, and the tension roller compresses the fabric, thus maintaining tension during winding and facilitating the winding process.

[0004] The aforementioned tension adjustment device involves numerous adjustment steps and relies heavily on manual alignment. In production scenarios requiring frequent tension adjustments (such as when changing fabric types), repeated tightening and alignment operations prolong adjustment time and reduce production efficiency. Furthermore, if the locking screw is not fully tightened, it may loosen during equipment operation, causing sudden changes in tension. Additionally, the device uses discrete threaded holes on the curved rod to fix the position of the adjustment block in conjunction with the locking screw; the fixed position of the adjustment block can only correspond to discrete points of the threaded holes, making continuous stepless adjustment impossible. This limits tension adjustment to a few preset levels, making it difficult to precisely match the subtle tension requirements of different fabric materials and thicknesses, potentially leading to either over-adjustment or under-adjustment. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a tension adjustment device for high-temperature fabric impregnation production, which solves the problems of inability to adjust steplessly and cumbersome adjustment operations.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A tension adjustment device for high-temperature fabric impregnation production includes a crossbeam, and an adjustment mechanism is provided above the crossbeam.

[0007] The drive assembly includes a connecting rod fixedly installed above the crossbeam, a movable frame movably installed on the top of the connecting rod, a transmission tube inserted above the movable frame, a drive motor fixedly installed on the top of the movable frame, a bevel gear fixedly installed on the top of the transmission tube and the outside of the drive motor shaft, a lead screw movably installed inside the transmission tube, and a connecting shaft fixedly installed at the bottom of the connecting rod. The drive assembly also includes an electric actuator fixedly installed at the bottom of the crossbeam.

[0008] The transmission assembly, located below the drive assembly, provides pressure to the fabric.

[0009] Preferably, the transmission assembly includes a tripod movably mounted on both ends of the connecting shaft, a limiting shaft fixedly mounted on the lower end of the tripod, a transmission shaft fixedly mounted on the rear side of the tripod, a transmission block movably mounted on the outer side of the transmission shaft, a bearing inserted through the outer side of the limiting shaft, a roller frame fixedly mounted on the outer side of the bearing, and a sleeve inserted through the outer side of the roller frame.

[0010] Preferably, the movable frame and the connecting rod are rotatably connected, the transmission tube and the movable frame are rotatably connected, and the drive motor is mirror-symmetrically mounted on both sides of the top of the movable frame.

[0011] Preferably, the top end of the transmission tube meshes with the bevel gear on the outside of the drive motor shaft, the lead screw is movably connected to the transmission tube through a threaded structure, and the electric actuator is mirror-symmetrically installed on the left and right sides of the bottom end of the crossbeam.

[0012] Preferably, the tripod and the connecting shaft are rotatably connected, the transmission block and the transmission shaft are rotatably connected, and the top of the transmission block is fixedly connected to the bottom of the lead screw.

[0013] Preferably, the roller frame is equidistantly mounted on the outside of the limiting shaft via bearings and forms a rotatable connection with the limiting shaft, and the sleeve is movably mounted on the outside of the limiting shaft via the roller frame.

[0014] Beneficial effects

[0015] This invention provides a tension adjustment device for high-temperature fabric impregnation production. Compared with the prior art, it has the following advantages:

[0016] (1) This tension adjustment device for high-temperature fabric impregnation production uses a drive motor to drive a bevel gear transmission, which rotates the transmission tube. The transmission tube and the lead screw are connected by a threaded structure. The threaded transmission allows the lead screw to achieve continuous axial displacement with the continuous rotation of the transmission tube, rather than relying on discrete threaded holes for positioning. The continuous movement of the lead screw is transmitted to the tripod through the transmission block and transmission shaft, causing the tripod to rotate continuously around the connecting shaft, thereby continuously changing the height of the limiting shaft and continuously adjusting the pressure of the sleeve on the fabric. This mechanical coordination dominated by threaded transmission eliminates the limitations of discrete points, realizes stepless adjustment of tension, and can precisely match the subtle tension requirements of fabrics of different materials and thicknesses.

[0017] (2) This high-temperature fabric impregnation production tension adjustment device uses a drive motor as a power source. The motor power is transmitted to the transmission tube via bevel gear meshing, and then converted into linear motion of the lead screw through a threaded structure. The entire power transmission process requires no manual intervention. The movement of the lead screw automatically drives the triangular frame to rotate through the cooperation of the transmission block and the transmission shaft, thereby adjusting the angle of the tensioning mechanism. Simultaneously, the electric actuator can assist in adjusting the height of the crossbeam, further simplifying operation. Compared to traditional devices that rely on manual tightening of the locking screw and repeated alignment, this device automates the adjustment process through a motor-driven mechanical linkage structure, reducing manual operation steps, avoiding the tedious process of frequent tightening and alignment, effectively shortening adjustment time, and improving production efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the bevel gear mounting structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the tripod mounting structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the sleeve installation structure of this utility model;

[0022] In the diagram: 1. Crossbeam; 2. Adjustment mechanism; 21. Drive assembly; 211. Connecting rod; 212. Movable frame; 213. Transmission tube; 214. Drive motor; 215. Bevel gear; 216. Lead screw; 217. Connecting shaft; 218. Electric actuator; 22. Transmission assembly; 221. Triangular frame; 222. Limiting shaft; 223. Transmission shaft; 224. Transmission block; 225. Bearing; 226. Roller frame; 227. Sleeve. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-4 This utility model provides a technical solution: a tension adjustment device for high-temperature fabric impregnation production, including a crossbeam 1, and an adjustment mechanism 2 is arranged above the crossbeam 1.

[0025] The drive assembly 21 includes a connecting rod 211 fixedly mounted above the crossbeam 1. A movable frame 212 is movably mounted on the top of the connecting rod 211. A transmission tube 213 is inserted above the movable frame 212. A drive motor 214 is fixedly mounted on the top of the movable frame 212. A bevel gear 215 is fixedly mounted on the top of the transmission tube 213 and on the outside of the shaft of the drive motor 214. A lead screw 216 is movably mounted inside the transmission tube 213. A connecting shaft 217 is fixedly mounted on the bottom of the connecting rod 211. The drive assembly 21 also includes... The system includes an electric actuator 218 fixedly installed at the bottom of the crossbeam 1; a rotatable connection between the movable frame 212 and the connecting rod 211; a rotatable connection between the transmission tube 213 and the movable frame 212; a drive motor 214 mirror-symmetrically installed on both sides of the top of the movable frame 212; a bevel gear 215 on the outer side of the shaft of the drive motor 214 meshing with the top of the transmission tube 213; a lead screw 216 movably connected to the transmission tube 213 via a threaded structure; and an electric actuator 218 mirror-symmetrically installed on the left and right sides of the bottom of the crossbeam 1.

[0026] Specifically, the drive motors 214 on both sides of the movable frame 212 can drive the transmission tube 213 to rotate through the bevel gear 215. Since the inner wall of the transmission tube 213 is connected to the lead screw 216 through a threaded structure, and the bottom end of the lead screw 216 is fixedly connected to the transmission block 224, the lead screw 216 will be displaced according to the rotation direction of the transmission tube 213 when the transmission tube 213 rotates. The electric push rod 218 can adjust the height of the crossbeam 1.

[0027] The transmission assembly 22, located below the drive assembly 21, provides pressure to the fabric. The transmission assembly 22 includes a triangular frame 221 movably mounted at both ends of the connecting shaft 217. A limit shaft 222 is fixedly mounted at the lower end of the triangular frame 221. A transmission shaft 223 is fixedly mounted on the rear side of the triangular frame 221. A transmission block 224 is movably mounted on the outer side of the transmission shaft 223. A bearing 225 is inserted and mounted on the outer side of the limit shaft 222. A roller frame 226 is fixedly mounted on the outer side of the bearing 225. A sleeve 227 is inserted and installed on the outside of the roller frame 226. The triangular frame 221 and the connecting shaft 217 are rotatably connected. The transmission block 224 and the transmission shaft 223 are rotatably connected. The top of the transmission block 224 is fixedly connected to the bottom of the lead screw 216. The roller frame 226 is equidistantly installed on the outside of the limiting shaft 222 through the bearing 225 and is rotatably connected to the limiting shaft 222. The sleeve 227 is movably installed on the outside of the limiting shaft 222 through the roller frame 226.

[0028] Specifically, the tripod 221 and the connecting shaft 217 form a rotatable connection. Since the rear end of the tripod 221 is connected to the transmission block 224 and the lead screw 216 via the transmission shaft 223, when the lead screw 216 moves, it will drive the tripod 221 to rotate around the axis of the connecting shaft 217 via the transmission block 224. Simultaneously, to match the displacement of the transmission shaft 223, the relative angle between the transmission block 224 and the transmission shaft 223 will change, and this will drive the upper movable frame 212 to rotate around the axis of the connecting shaft 217 via the lead screw 216. The height of the bottom limiting shaft 222 of the tripod 221 is adjusted by rotating the top hinge of the connecting rod 211 as a reference. The sleeve 227 is rotatably connected to the limiting shaft 222 through the roller frame 226 and the bearing 225. The bearing 225 can reduce the friction between the roller frame 226 and the limiting shaft 222 when the roller frame 226 rotates, so that the sleeve 227 can rotate and prevent the sleeve 227 from generating too much friction with the fabric and damaging the fabric. The roller frame 226 can increase the strength of the sleeve 227 and prevent the sleeve 227 from deforming.

[0029] Specifically, the drive motor 214 is model HS60-400W+HS-5 / 6, and the electric actuator 218 is model JZN180. In addition, all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0030] During operation, after the drive motor 214 starts, the bevel gear 215 on the outer side of its rotating shaft meshes with the bevel gear 215 at the top of the transmission tube 213, causing the transmission tube 213 to rotate on the movable frame 212. Since the lead screw 216 is movably connected to the transmission tube 213 via a threaded structure, the lead screw 216 moves axially up and down when the transmission tube 213 rotates. The bottom end of the lead screw 216 is fixedly connected to the transmission block 224, so the transmission block 224 moves synchronously with the lead screw 216. The transmission block 224 is also rotatably connected to the transmission shaft 223 on the rear side of the tripod 221. Since the tripod 221 is movably mounted at both ends of the connecting shaft 217, the movement of the lead screw 216 causes the tripod 221 to rotate around the connecting shaft 217, thereby adjusting the height of the lower limit shaft 222 of the tripod 221. Simultaneously, the movable frame 212 is rotatably connected to the connecting rod 211, and its angle adaptively adjusts with the movement of the lead screw 216 and the tripod 221. The electric actuator 218 at the bottom of the crossbeam 1 can assist in adjusting the height of the crossbeam 1, in conjunction with the overall adjustment. A roller frame 226 is mounted on the outside of the limiting shaft 222 via a bearing 225. A sleeve 227 is inserted through the outside of the roller frame 226. The sleeve 227 contacts the fabric as the height of the limiting shaft 222 changes. The rotation of the bearing 225 reduces friction, provides stable pressure to the fabric, and realizes tension adjustment.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] 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 adjustment device for high-temperature fabric impregnation production, comprising a crossbeam (1), characterized in that: An adjustment mechanism (2) is provided above the crossbeam (1): The drive assembly (21) includes a connecting rod (211) fixedly installed above the crossbeam (1), a movable frame (212) movably installed on the top of the connecting rod (211), a transmission tube (213) inserted above the movable frame (212), a drive motor (214) fixedly installed on the top of the movable frame (212), a bevel gear (215) fixedly installed on the top of the transmission tube (213) and the outside of the rotating shaft of the drive motor (214), a lead screw (216) movably installed inside the transmission tube (213), a connecting shaft (217) fixedly installed at the bottom of the connecting rod (211), and the drive assembly (21) also includes an electric push rod (218) fixedly installed at the bottom of the crossbeam (1). The transmission assembly (22), located below the drive assembly (21), provides pressure to the fabric.

2. The tension adjustment device for high-temperature fabric impregnation production according to claim 1, characterized in that: The transmission assembly (22) includes a tripod (221) movably mounted on both ends of the connecting shaft (217). A limit shaft (222) is fixedly mounted on the lower end of the tripod (221). A transmission shaft (223) is fixedly mounted on the rear side of the tripod (221). A transmission block (224) is movably mounted on the outer side of the transmission shaft (223). A bearing (225) is inserted through the outer side of the limit shaft (222). A roller frame (226) is fixedly mounted on the outer side of the bearing (225). A sleeve (227) is inserted through the outer side of the roller frame (226).

3. The tension adjustment device for high-temperature fabric impregnation production according to claim 1, characterized in that: The movable frame (212) and the connecting rod (211) are rotatably connected, the transmission tube (213) and the movable frame (212) are rotatably connected, and the drive motor (214) is mirror-symmetrically installed on both sides of the top of the movable frame (212).

4. The tension adjustment device for high-temperature fabric impregnation production according to claim 1, characterized in that: The top end of the transmission tube (213) meshes with the bevel gear (215) on the outside of the shaft of the drive motor (214). The lead screw (216) is connected to the transmission tube (213) through a threaded structure. The electric push rod (218) is mirror-symmetrically installed on the left and right sides of the bottom end of the crossbeam (1).

5. The tension adjustment device for high-temperature fabric impregnation production according to claim 2, characterized in that: The tripod (221) and the connecting shaft (217) are rotatably connected, the transmission block (224) and the transmission shaft (223) are rotatably connected, and the top of the transmission block (224) is fixedly connected to the bottom of the lead screw (216).

6. The tension adjustment device for high-temperature fabric impregnation production according to claim 2, characterized in that: The roller frame (226) is equidistantly mounted on the outside of the limiting shaft (222) via bearings (225) and forms a rotatable connection with the limiting shaft (222). The sleeve (227) is movably mounted on the outside of the limiting shaft (222) via the roller frame (226).

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