Tension adjuster for yarn storage mechanism of warp knitting machine

By using a tension sensor and drive motor to adjust the height of the tension roller in the yarn storage mechanism of the warp knitting machine, the problem of inaccurate tension control in traditional warp knitting machines has been solved, enabling precise adjustment of yarn tension and improving fabric quality.

CN224227371UActive Publication Date: 2026-05-12CHANGSHU DAFA WARP KNITTING WEAVING
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGSHU DAFA WARP KNITTING WEAVING
Filing Date
2025-07-14
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Traditional warp knitting machines have insufficient precision in controlling the tension of their yarn storage mechanisms, making it difficult to meet the diverse and high-quality weaving needs and easily leading to problems such as excessively loose or tight tension.

Method used

By employing a tension sensor in conjunction with a drive motor and adjustment mechanism, precise control of yarn tension is achieved by detecting yarn tension and adjusting the height of the tension roller.

Benefits of technology

It enables precise adjustment of yarn tension, improves fabric quality, avoids problems such as yarn breakage and needle misalignment, and meets diverse weaving needs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a warp knitting machine yarn storage mechanism tension adjuster which comprises a base, two supports are symmetrically and fixedly connected to the top of the base, a winding roller and a guide roller are arranged on the inner sides of the two supports respectively, an adjusting mechanism is arranged between the two supports, and an installation mechanism is arranged on the adjusting mechanism. The adjusting mechanism comprises a U-shaped frame fixed between the two supports, two L-shaped round rods are symmetrically and fixedly connected to the inner side of the U-shaped frame, a lifting plate is movably connected between the two L-shaped round rods in a sleeving mode, a U-shaped plate is placed on the top of the lifting plate, and two tension sensors are symmetrically and fixedly connected to the top of the U-shaped plate. According to the tension adjuster, the driving motor, the driving shaft, the side disc, the movable rod, the L-shaped round rod and the U-shaped plate are matched, the height of the tensioning roller can be changed, and therefore the tension degree of yarn can be adjusted conveniently.
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Description

Technical Field

[0001] This utility model belongs to the field of warp knitting machine technology, specifically a tension adjuster for the yarn storage mechanism of a warp knitting machine. Background Technology

[0002] Warp knitting machines form knitted fabrics by feeding multiple sets of parallel yarns in the warp direction. The stability of the yarn storage mechanism is crucial to the quality of the fabric. During weaving, due to differences in fabric patterns, raw materials, and machine start-up speeds, the yarn tension needs to be precisely controlled. However, traditional warp knitting machines rely heavily on adjusting the yarn storage tension using a single warp feed amount. When producing special products, the tension adaptability is poor, and problems such as yarn breakage and unclear patterns due to excessively loose tension, or needle misalignment, yarn breakage, and missed needles due to excessively tight tension, are likely to occur. This makes it difficult to meet the diverse and high-quality weaving needs, driving the development of tension adjusters towards greater precision and flexibility. Utility Model Content

[0003] In view of the above situation and to overcome the defects of the prior art, this utility model provides a tension adjuster for the yarn storage mechanism of a warp knitting machine, which effectively solves the problem of the inconvenience of accurately controlling the tension of the yarn.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a tension adjuster for the yarn storage mechanism of a warp knitting machine, including a base, two supports symmetrically fixedly connected to the top of the base, a winding roller and a guide roller respectively provided on the inner side of the two supports, an adjustment mechanism provided between the two supports, and an installation mechanism provided on the adjustment mechanism;

[0005] The adjustment mechanism includes a U-shaped frame fixed between two supports. Two L-shaped rods are symmetrically fixedly connected to the inner side of the U-shaped frame. A lifting plate is movably sleeved between the two L-shaped rods. A U-shaped plate is placed on the top of the lifting plate. Two tension sensors are symmetrically fixedly connected to the top of the U-shaped plate. A top block is fixedly connected to the top of each of the two tension sensors. A tension roller is rotatably connected between the two top blocks.

[0006] Preferably, an L-shaped plate is fixedly installed on the outer side of the U-shaped frame, a drive motor is fixedly installed on the L-shaped plate, a drive shaft is fixedly connected to the drive motor, a side plate located below the lifting plate is fixedly connected to the end of the drive shaft away from the drive motor, a movable rod is rotatably connected to the side of the side plate away from the drive shaft, and the end of the movable rod away from the side plate is rotatably connected to the lifting plate.

[0007] Preferably, the top of the lifting plate is symmetrically fixedly connected to two positioning blocks, and the U-shaped plate is movably sleeved on the outside of the two positioning blocks.

[0008] Preferably, the installation mechanism includes a guide post fixed to the inner side of the U-shaped plate, two guide plates symmetrically and movably sleeved on the outer side of the guide post, a rod fixedly connected to the side of the two guide plates that are far apart from each other, and a hole provided on the side of the two positioning blocks that are close to each other. The two rods are respectively inserted into the two holes. A guide groove is provided on the inner bottom wall of the U-shaped plate, and the two guide plates are slidably connected to the guide groove.

[0009] Preferably, a support plate is fixedly sleeved on the outer middle of the guide post, a screw is rotatably connected to the top of the support plate, a handwheel is fixedly connected to the top of the screw, a threaded sleeve is threaded on the outer side of the screw, two limiting rods are symmetrically fixedly connected to the outer side of the threaded sleeve, two limiting grooves are symmetrically provided on the outer side of the support plate, and the two limiting rods are slidably connected to the two limiting grooves respectively.

[0010] Preferably, the outer side of the threaded sleeve is symmetrically rotatably connected to two drive rods, and the ends of the two drive rods away from the threaded sleeve are respectively rotatably connected to two guide plates.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. The tension of the yarn can be easily detected by the cooperation between the U-shaped plate, the tension sensor, the top block and the tension roller. The height of the tension roller can be changed by the cooperation between the drive motor, the drive shaft, the side plate, the movable rod, the L-shaped round rod and the U-shaped plate, thereby making it easy to adjust the tension of the yarn.

[0013] 2. The U-shaped plate, positioning block, and lifting plate work together to facilitate the placement of the tension roller. The handwheel, screw, screw sleeve, limit rod, limit groove, drive rod, guide plate, guide column, insertion rod, and insertion hole work together to fix the U-shaped plate to the lifting plate, thus facilitating the installation of the tension roller. Attached Figure Description

[0014] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0015] In the attached diagram:

[0016] Figure 1 This is a schematic diagram of the tension adjuster structure of the yarn storage mechanism of the warp knitting machine according to this utility model;

[0017] Figure 2 This is a schematic diagram of the adjustment mechanism of this utility model;

[0018] Figure 3 This is a schematic diagram of the U-shaped plate structure of this utility model;

[0019] Figure 4This is a schematic diagram of the installation mechanism of this utility model.

[0020] In the diagram: 1. Base; 2. Adjustment mechanism; 201. U-shaped frame; 202. Drive motor; 203. Drive shaft; 204. L-shaped plate; 205. L-shaped round rod; 206. Side plate; 207. Movable rod; 208. Lifting plate; 209. Tension roller; 2010. U-shaped plate; 2011. Positioning block; 2012. Top block; 2013. Tension sensor; 3. Installation mechanism; 301. Guide column; 302. Insert rod; 303. Guide groove; 304. Support plate; 305. Limit groove; 306. Limit rod; 307. Guide plate; 308. Drive rod; 309. Screw; 3010. Handwheel; 3011. Screw sleeve; 4. Winding roller; 5. Guide roller; 6. Bracket. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0022] Example 1, by Figure 1 The present invention relates to a tension adjuster for the yarn storage mechanism of a warp knitting machine, comprising a base 1, two supports 6 symmetrically fixedly connected to the top of the base 1, a winding roller 4 and a guide roller 5 respectively provided on the inner side of the two supports 6, an adjustment mechanism 2 provided between the two supports 6, and an installation mechanism 3 provided on the adjustment mechanism 2.

[0023] Specifically, by Figure 2-3The adjustment mechanism 2 includes a U-shaped frame 201 fixed between two supports 6. Two L-shaped rods 205 are symmetrically fixedly connected to the inner side of the U-shaped frame 201. A lifting plate 208 is movably sleeved between the two L-shaped rods 205. A U-shaped plate 2010 is placed on top of the lifting plate 208. Two tension sensors 2013 are symmetrically fixedly connected to the top of the U-shaped plate 2010. A top block 2012 is fixedly connected to the top of each tension sensor 2013. A tensioning roller 209 is rotatably connected between the two top blocks 2012. The winding roller 4 and the guide roller 5 are at the same height and are both lower than the height of the tensioning roller 209. An L-shaped plate 204 is fixedly installed on the outer side of the frame 201. A drive motor 202 is fixedly installed on the L-shaped plate 204. A drive shaft 203 is fixedly connected to the drive motor 202. A side plate 206 located below the lifting plate 208 is fixedly connected to the end of the drive shaft 203 away from the drive motor 202. A movable rod 207 is rotatably connected to the side of the side plate 206 away from the drive shaft 203. The end of the movable rod 207 away from the side plate 206 is rotatably connected to the lifting plate 208. Two positioning blocks 2011 are symmetrically fixedly connected to the top of the lifting plate 208. A U-shaped plate 2010 is movably sleeved on the outside of the two positioning blocks 2011.

[0024] In operation, the yarn wound on the winding roller 4 passes through the top of the tension roller 209 and through the bottom of the guide roller 5. The two tension sensors 2013 constantly detect the tension of the yarn and transmit electrical signals to the drive motor 202. The drive motor 202 starts and drives the drive shaft 203 to rotate, which in turn drives the side plate 206 to rotate. The movable rod 207 drives the lifting plate 208 to slide along the two L-shaped round rods 205 and moves the U-shaped plate 2010. Finally, the height of the tension roller 209 is changed to adjust the tension of the yarn.

[0025] Specifically, by Figure 4The installation mechanism 3 includes a guide post 301 fixed to the inner side of the U-shaped plate 2010. Two guide plates 307 are symmetrically and movably sleeved on the outer side of the guide post 301. Insert rods 302 are fixedly connected to the sides of the two guide plates 307 that are far apart from each other. Insert holes are provided on the sides of the two positioning blocks 2011 that are close to each other. The two insert rods 302 are inserted into the two insertion holes respectively. A guide groove 303 is provided on the inner bottom wall of the U-shaped plate 2010. Both guide plates 307 are slidably connected to the guide groove 303. The guide groove 303 ensures the stability of the guide plates 307 during movement. A support plate 304 is fixedly sleeved on the middle of the outer side of the guide post 301. A screw 309 is rotatably connected to the top of the support plate 304. A handwheel 3010 is fixedly connected to the top of the screw 309. A screw sleeve 3011 is threaded onto the outer side of the screw 309. Two limiting rods 306 are symmetrically fixedly connected to the outer side of the screw sleeve 3011. Two limiting grooves 305 are symmetrically provided on the outer side of the support plate 304. The two limiting rods 306 are slidably connected to the two limiting grooves 305 respectively. Through the cooperation between the limiting rods 306 and the limiting grooves 305, the screw sleeve 3011 is guided and limited, so that the screw 309 can drive the screw sleeve 3011 to rise and fall when it rotates. Two drive rods 308 are symmetrically rotatably connected to the outer side of the screw sleeve 3011. The ends of the two drive rods 308 away from the screw sleeve 3011 are rotatably connected to two guide plates 307 respectively.

[0026] In use, first, place the U-shaped plate 2010 on the outside of the two positioning blocks 2011 until it is at the top of the lifting plate 208. Then, rotate the handwheel 3010 to drive the screw 309 to rotate and drive the screw sleeve 3011 to move downward. Through the two drive rods 308, the two guide plates 307 are driven to slide along the guide post 301. At the same time, the two insertion rods 302 move away from each other until they are inserted into the two insertion holes respectively, fixing the U-shaped plate 2010 to the lifting plate 208. Finally, the tension roller 209 is installed.

[0027] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the protection scope of this utility model.

Claims

1. A tension adjuster for a warp knitting machine's yarn storage mechanism, comprising a base (1), characterized in that: The top of the base (1) is symmetrically fixedly connected to two brackets (6). The inner sides of the two brackets (6) are respectively provided with a winding roller (4) and a guide roller (5). An adjustment mechanism (2) is provided between the two brackets (6), and an installation mechanism (3) is provided on the adjustment mechanism (2). The adjustment mechanism (2) includes a U-shaped frame (201) fixed between two supports (6). Two L-shaped rods (205) are symmetrically fixedly connected to the inner side of the U-shaped frame (201). A lifting plate (208) is movably sleeved between the two L-shaped rods (205). A U-shaped plate (2010) is placed on the top of the lifting plate (208). Two tension sensors (2013) are symmetrically fixedly connected to the top of the U-shaped plate (2010). A top block (2012) is fixedly connected to the top of each of the two tension sensors (2013). A tension roller (209) is rotatably connected between the two top blocks (2012).

2. The tension adjuster for the yarn storage mechanism of a warp knitting machine according to claim 1, characterized in that: An L-shaped plate (204) is fixedly installed on the outside of the U-shaped frame (201). A drive motor (202) is fixedly installed on the L-shaped plate (204). A drive shaft (203) is fixedly connected to the drive motor (202). A side plate (206) located below the lifting plate (208) is fixedly connected to one end of the drive shaft (203) away from the drive motor (202). A movable rod (207) is rotatably connected to one side of the side plate (206) away from the drive shaft (203). One end of the movable rod (207) away from the side plate (206) is rotatably connected to the lifting plate (208).

3. The tension adjuster for the yarn storage mechanism of a warp knitting machine according to claim 1, characterized in that: The top of the lifting plate (208) is symmetrically fixedly connected to two positioning blocks (2011), and the U-shaped plate (2010) is movably sleeved on the outside of the two positioning blocks (2011).

4. The tension adjuster for the yarn storage mechanism of a warp knitting machine according to claim 1, characterized in that: The installation mechanism (3) includes a guide post (301) fixed inside the U-shaped plate (2010). Two guide plates (307) are symmetrically and movably sleeved on the outer side of the guide post (301). Insert rods (302) are fixedly connected to the side of the two guide plates (307) that are far apart from each other. Insert holes are provided on the side of the two positioning blocks (2011) that are close to each other. The two insert rods (302) are inserted into the two insertion holes respectively. A guide groove (303) is provided on the inner bottom wall of the U-shaped plate (2010). The two guide plates (307) are slidably connected to the guide groove (303).

5. The tension adjuster for the yarn storage mechanism of a warp knitting machine according to claim 4, characterized in that: A support plate (304) is fixedly sleeved on the outer middle of the guide post (301). A screw (309) is rotatably connected to the top of the support plate (304). A handwheel (3010) is fixedly connected to the top of the screw (309). A threaded sleeve (3011) is threaded onto the outer side of the screw (309). Two limiting rods (306) are symmetrically fixedly connected to the outer side of the threaded sleeve (3011). Two limiting grooves (305) are symmetrically provided on the outer side of the support plate (304). The two limiting rods (306) are slidably connected to the two limiting grooves (305) respectively.

6. The tension adjuster for the yarn storage mechanism of a warp knitting machine according to claim 5, characterized in that: Two drive rods (308) are symmetrically rotatably connected to the outer side of the threaded sleeve (3011), and the ends of the two drive rods (308) away from the threaded sleeve (3011) are rotatably connected to two guide plates (307) respectively.