A yarn tension equalizer for lace fabric production

Abstract

The utility model belongs to the field of lace fabric production technology, concretely relates to a yarn tension equalizer for lace fabric production, including fixed bucket, tension mechanism and yarn body, yarn body passes through tension mechanism, the top of one end of fixed bucket is fixed with mounting panel, and tension mechanism is installed at the top of mounting panel, and tension mechanism includes the mounting frame that installs in the inside of mounting panel, the top screw thread connection of mounting frame has first screw rod, and the bottom rotatory connection of first screw rod has second abutting wheel, the top of second abutting wheel still is fixed with guide strip, and guide strip is slidably connected with mounting frame, and the inside slide of mounting frame is connected with slide strip, and the top of slide strip is installed with first abutting wheel, and spring is assembled between mounting panel and mounting frame and is located the outside of slide strip.

Description

Technical Field

[0001] This utility model belongs to the field of lace fabric production technology, specifically relating to a yarn tension equalizer for lace fabric production. Background Technology

[0002] As a high-end textile product, lace fabric is produced using multi-comb warp knitting machines or jacquard warp knitting machines. Stable control of yarn tension is the core element to ensure product quality. During the lace weaving process, the amount of yarn used by the pattern comb and jacquard comb is adjusted in real time according to the pattern changes, which can easily cause yarn tension fluctuations. At the same time, the elastic yarns such as spandex commonly used in lace have the characteristics of easy shrinkage and sensitivity to tension. Uneven tension will directly lead to problems such as increased yarn breakage rate, pattern deformation, and fabric wrinkles, which seriously affect the product appearance and production efficiency.

[0003] To address the aforementioned issues, various yarn tension balancing devices have been developed in the prior art. For example, a yarn tension balancing device proposed in publication number CN215726496U can achieve height adjustment of the yarn tension meter without handheld operation, and can make contact with yarns at different heights for stable detection. These devices are all designed around optimizing the yarn guiding mechanism and improving adjustment accuracy, and have made some progress in terms of structural installation convenience and multi-yarn adaptability, but key technical defects still exist.

[0004] In actual production, impurities on the yarn surface can seriously interfere with the adjustment accuracy of the tension equalizer. Spandex yarn commonly used in lace production will have residual silicone oil during the spinning stage to reduce friction. During storage and transportation, environmental dust, short fiber fuzz and other impurities will also adhere to it. Existing tension equalizers do not have a targeted cleaning structure, and impurities will directly cause multiple problems.

[0005] Silicone oil and dust cause poor contact of the tension sensor, resulting in a large deviation between the detected tension value and the actual value, which is far beyond the allowable error range for lace production. Furthermore, the accumulation of fuzz and impurities on the surface of the yarn guide ring and guide roller causes sudden changes in yarn transmission resistance, leading to a lag in the response of the adjustment mechanism and intermittent tension fluctuations. Thirdly, even if the yarn is washed with low-temperature weak alkaline water to remove impurities during the pretreatment stage, secondary contamination can still occur during the process of conveying it to the tension equalizer. Existing technology lacks a real-time purification mechanism.

[0006] The aforementioned impurities directly lead to a decrease in the adjustment accuracy of the existing tension equalizer, which in turn causes quality defects such as misalignment of lace patterns, uneven edges, and poor elasticity consistency. At the same time, it keeps the yarn breakage rate high, increases the number of equipment downtimes, and seriously restricts production efficiency.

[0007] Therefore, how to simultaneously clean the yarn during the operation of the tension equalizer and eliminate the interference of impurities on tension detection and adjustment from the source has become a key technical requirement for improving the quality of lace production. Utility Model Content

[0008] The purpose of this invention is to provide a yarn tension equalizer for lace fabric production, which can remove impurities such as silicone oil and dust from the yarn surface, avoid poor contact of sensing components such as pressure sensors on tension sensors, and control detection deviation.

[0009] The specific technical solution adopted by this utility model is as follows:

[0010] A yarn tension equalizer for lace fabric production includes a fixed barrel, a tensioning mechanism, and a yarn body. The yarn body passes through the tensioning mechanism. A mounting plate is fixed to the top of one end of the fixed barrel, and the tensioning mechanism is mounted on the top of the mounting plate.

[0011] The tensioning mechanism includes a mounting frame installed inside the mounting plate. A first screw is threaded to the top of the mounting frame, and a second abutting wheel is rotatably connected to the bottom of the first screw. A guide strip is fixed to the top of the second abutting wheel, and the guide strip is slidably connected to the mounting frame. A sliding strip is slidably connected inside the mounting frame, and a first abutting wheel is installed on the top of the sliding strip. A spring is assembled between the mounting plate and the mounting frame and outside the sliding strip. The yarn body is located between the first abutting wheel and the second abutting wheel.

[0012] The fixed bucket is equipped with a cleaning structure, and the lower part of the mounting plate is provided with a drying structure.

[0013] The cleaning structure includes two partitions, which are fixed at both ends inside the fixed barrel. The two partitions divide the inside of the fixed barrel into a cleaning chamber and two installation chambers, with the two installation chambers located at both ends of the cleaning chamber. The cleaning chamber is equipped with multiple guide wheels, which restrict the yarn body so that the yarn body passes through the inside of the cleaning chamber. The installation chamber is equipped with a transducer.

[0014] A stirring screw is installed on the outside of the fixed barrel, and a first motor is rotatably connected inside the cleaning chamber. The output end of the first motor passes through the fixed barrel and is connected to the stirring screw.

[0015] The drying structure includes a mounting housing installed at the bottom of the mounting plate, a heating wire installed inside the mounting housing, and a fan installed inside the mounting housing and on top of the heating wire.

[0016] The mounting plate has a first sliding block and a second sliding block installed on both sides of its top. The top of the second sliding block is rotatably connected to a second limiting wheel, and the top of the first sliding block is rotatably connected to a first limiting wheel. The yarn body is fed into the tensioning mechanism position through the conduction of the first limiting wheel and the second limiting wheel.

[0017] A drive structure is mounted on the top of the mounting plate.

[0018] The drive structure includes a third screw and a second screw rotatably connected to the top of the mounting plate. The second screw is threadedly connected to the second sliding block, and the third screw is threadedly connected to the first sliding block. The third screw and the second screw are arranged in parallel, and their helical directions are opposite. The second sliding block and the first sliding block are both slidably connected to the mounting plate. A synchronous transmission mechanism is installed between the second screw and the third screw. A second motor is installed on the mounting plate, and the output end of the second motor is connected to either the second screw or the third screw.

[0019] The synchronous transmission mechanism includes pulleys fixed to the ends of the second screw and the third screw, respectively, and the two pulleys are connected by a transmission belt.

[0020] The technical effects achieved by this utility model are as follows:

[0021] This invention uses weak alkaline water in the cleaning chamber to wash the yarn body and then uses heating wires and a fan to dry the yarn body. This removes impurities such as silicone oil and dust from the yarn surface, avoids poor contact of sensing components such as pressure sensors on the tension sensor, controls detection deviation, improves adjustment accuracy, reduces the accumulation of impurities on the yarn guiding components, prevents sudden changes in transmission resistance, and speeds up the response of the adjustment mechanism. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a cross-sectional view of the fixed bucket in this utility model;

[0024] Figure 3 This utility model is Figure 2 Enlarged view of point A in the middle;

[0025] Figure 4 This is a schematic diagram of the structure between the stirring screw and the first motor in this utility model;

[0026] Figure 5 This is a schematic diagram of the structure between the second screw, the third screw, and the yarn body in this utility model;

[0027] Figure 6 This is a schematic diagram of the structure between the housing, heating wire and fan in this utility model.

[0028] The attached diagram lists the components represented by each number as follows:

[0029] 1. Fixed bucket; 2. Mounting plate; 3. Yarn body; 4. First abutting wheel; 5. Second abutting wheel; 6. Mounting frame; 7. First screw; 8. Sliding strip; 9. Spring; 10. Cleaning chamber; 11. Mounting chamber; 12. Transducer; 13. Guide wheel; 14. Agitating screw; 15. First motor; 16. Guide strip; 17. Second screw; 18. Third screw; 19. Partition plate; 20. First limiting wheel; 21. First sliding block; 22. Second limiting wheel; 23. Second sliding block; 24. Pulley; 25. Transmission belt; 26. Second motor; 27. Mounting housing; 28. Heating wire; 29. ​​Fan. Detailed Implementation

[0030] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0031] like Figures 1-6 As shown, a yarn tension equalizer for lace fabric production includes a fixed barrel 1, a tensioning mechanism, and a yarn body 3. The yarn body 3 passes through the tensioning mechanism. A mounting plate 2 is fixed to the top of one end of the fixed barrel 1. The tensioning mechanism is installed on the top of the mounting plate 2. The yarn body 3 is tensioned by the tensioning mechanism, thereby ensuring that the yarn body 3 is more comfortable for users to wear after being woven into fabric. Areas that need to be tight, such as the waistband, will be tight, and areas that need to be loose, such as the armpits, will be loose.

[0032] See attached document Figure 3The tensioning mechanism includes a mounting frame 6 installed inside the mounting plate 2. A first screw 7 is threadedly connected to the top of the mounting frame 6, and a second abutment wheel 5 is rotatably connected to the bottom of the first screw 7. A guide strip 16 is fixed to the top of the second abutment wheel 5, and the guide strip 16 is slidably connected to the mounting frame 6. A sliding strip 8 is slidably connected inside the mounting frame 6, and a first abutment wheel 4 is installed on the top of the sliding strip 8. A spring 9 is fitted between the mounting plate 2 and the mounting frame 6, located outside the sliding strip 8. The yarn body 3 is located between the first abutment wheel 4 and the second abutment wheel 5. When tensioning the yarn body 3, the first screw 7 can be screwed, causing the threaded connection between the first screw 7 and the mounting frame 6. The guide strip 16 restricts the movement of the second abutment wheel 5, causing it to abut against the yarn body 3, thus causing the yarn body 3 to follow the tension. The first abutting wheel 4 moves downward and, through contact with the second abutting wheel 5, compresses the spring 9, thereby enabling the second abutting wheel 5 to tension the yarn body 3. In fact, components such as the mounting frame 6 are structures that ensure better transmission effect of the yarn body 3. When tensioning certain smoother yarn bodies 3, components such as the first abutting wheel 4 are not required, and the tensioning mechanism can also use some existing tensioning components. The mounting frame 6 can also be equipped with a detection structure, such as a pressure sensor, to detect the tension of the yarn body 3, and then the rotation of the first screw 7 can be electrically controlled to adapt to the tension of the yarn body 3 and make it balanced. The tensioning mechanism of this application is also an existing mechanism, and some components are not described in detail here.

[0033] The fixed bucket 1 is equipped with a cleaning structure.

[0034] See attached document Figure 2 The cleaning structure includes two partitions 19, which are fixed at both ends inside the fixed barrel 1. The two partitions 19 divide the inside of the fixed barrel 1 into a cleaning chamber 10 and two installation chambers 11, and the two installation chambers 11 are located at both ends of the cleaning chamber 10. Multiple guide wheels 13 are installed inside the cleaning chamber 10. The guide wheels 13 restrict the yarn body 3 so that the yarn body 3 passes through the inside of the cleaning chamber 10. The weak alkaline water can be a sodium bicarbonate solution or a weak alkaline detergent for washing fabrics. A transducer 12 is installed inside the installation chamber 11.

[0035] Before the yarn body 3 is tensioned, it is first guided by the guide wheel 13 to enter the cleaning chamber 10. The cleaning chamber 10 is filled with weak alkaline water at a low temperature, generally not exceeding 40°C. The water temperature can be adjusted by setting an electric heating wire in the cleaning chamber 10. As the yarn body 3 enters the cleaning chamber 10, it can drive the transducer 12, causing the transducer 12 to emit ultrasonic waves that vibrate the water, thereby cleaning the dust and other interfering substances attached to the outside of the yarn body 3. The water in the cleaning chamber 10 can be replaced periodically or circulated.

[0036] See attached document Figure 4 An agitator screw 14 is installed on the outside of the fixed barrel 1. A first motor 15 is rotatably connected inside the cleaning chamber 10. The output end of the first motor 15 passes through the fixed barrel 1 and is connected to the agitator screw 14. When it is necessary to further agitate the water, the agitator screw 14 can be driven, so that the output end of the agitator screw 14 drives the first motor 15 to rotate, thereby enabling the first motor 15 to agitate the water, so that the water waves can impact the yarn body 3, and further remove the dust attached to the yarn body 3.

[0037] A drying structure is provided at the lower part of the mounting plate 2;

[0038] See attached document Figure 1 and Figure 6 The drying structure includes a mounting housing 27 installed at the bottom of the mounting plate 2. A heating wire 28 is installed inside the mounting housing 27. A fan 29 is installed inside the mounting housing 27 and on top of the heating wire 28. When it is necessary to dry the yarn body 3, the heating wire 28 can be driven to heat the surrounding air. The heated air is then blown onto the yarn body 3 by the fan 29, thereby drying the yarn body 3. The temperature of the heating wire 28 is controlled at 50-60°C. The yarn body 3 is blown for 10-20 seconds to set the elasticity of the yarn. The mounting housing 27 is provided with multiple through holes for ventilation. The mounting plate 2 is provided with a slot on top of the fan 29 so that the fan 29 can blow air onto the yarn body 3.

[0039] See attached document Figure 5The mounting plate 2 has a first sliding block 21 and a second sliding block 23 installed on its top sides respectively. The top of the second sliding block 23 is rotatably connected to a second limiting wheel 22, and the top of the first sliding block 21 is rotatably connected to a first limiting wheel 20. The yarn body 3 is fed into the tensioning mechanism position through the transmission of the first limiting wheel 20 and the second limiting wheel 22. The setting of the first limiting wheel 20 enables the first limiting wheel 20 and the second limiting wheel 22 to guide the yarn body 3, so that the yarn body 3 is positioned in a Z-shape on the top of the fan 29, thereby extending the dwell time of the yarn body 3 on the top of the fan 29. The top of the mounting plate 2 is equipped with a driving structure, which is used to drive the Z-shaped shape, thereby controlling the dwell time of the yarn body 3 on the top of the fan 29.

[0040] Furthermore, the drive structure includes a third screw 18 and a second screw 17 rotatably connected to the top of the mounting plate 2. The second screw 17 is threadedly connected to the second sliding block 23, and the third screw 18 is threadedly connected to the first sliding block 21. The third screw 18 and the second screw 17 are arranged in parallel, and the helical directions of the second screw 17 and the third screw 18 are opposite. The second sliding block 23 and the first sliding block 21 are both slidably connected to the mounting plate 2. A synchronous transmission mechanism is installed between the second screw 17 and the third screw 18. A second motor 26 is installed on the mounting plate 2, and the output end of the second motor 26 is connected to the second screw 17 or the third screw 18.

[0041] When the first limiting wheel 20 and the second limiting wheel 22 need to be driven, the second motor 26 can be driven, so that the output end of the second motor 26 drives either the second screw 17 or the third screw 18 to rotate. Through the synchronous transmission mechanism, the second screw 17 and the third screw 18 can rotate synchronously. Through the threaded connection between the first sliding block 21 and the third screw 18, and through the sliding connection between the first sliding block 21 and the mounting plate 2, the first sliding block 21 can move on the mounting plate 2. And through the second screw... The screw 17 is threadedly connected to the second sliding block 23, and the second sliding block 23 is slidably connected to the mounting plate 2, so that the second sliding block 23 can move on the mounting plate 2. The screws 17 and 18 rotate in opposite directions, so that the second sliding block 23 and the first sliding block 21 can move in opposite directions, thereby driving the first limiting wheel 20 and the second limiting wheel 22 to move, thereby adjusting the Z-shaped shape, and thus adjusting the time when the yarn body 3 stays on top of the fan 29 to adapt to yarn bodies 3 of different thicknesses.

[0042] Furthermore, the synchronous transmission mechanism includes pulleys 24 fixed to the ends of the second screw 17 and the third screw 18 respectively. The two pulleys 24 are connected by a transmission belt 25. Through the transmission of the transmission belt 25, the two pulleys 24 are driven to rotate synchronously. The transmission belt 25 can be provided with teeth, and the outer side of the pulleys 24 is also provided with teeth, thereby ensuring the transmission effect of the pulleys 24 and the transmission belt 25. The pulleys 24 can be sprockets, and the transmission belt 25 can be chains.

[0043] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A yarn tension equalizer for lace fabric production, comprising a fixed drum (1), a tensioning mechanism, and a yarn body (3), wherein the yarn body (3) passes through the tensioning mechanism, characterized in that: The top of one end of the fixed bucket (1) is fixed with a mounting plate (2), and the tensioning mechanism is installed on the top of the mounting plate (2); The tensioning mechanism includes a mounting bracket (6) installed inside the mounting plate (2). The top of the mounting bracket (6) is threaded with a first screw (7). The bottom of the first screw (7) is rotatably connected with a second abutting wheel (5). The top of the second abutting wheel (5) is also fixed with a guide strip (16). The guide strip (16) is slidably connected with the mounting bracket (6). The inside of the mounting bracket (6) is slidably connected with a sliding strip (8). The top of the sliding strip (8) is equipped with a first abutting wheel (4). A spring (9) is assembled between the mounting plate (2) and the mounting bracket (6) and on the outside of the sliding strip (8). The yarn body (3) is located between the first abutting wheel (4) and the second abutting wheel (5). The fixed bucket (1) is equipped with a cleaning structure, and the lower part of the mounting plate (2) is provided with a drying structure.

2. The yarn tension equalizer for lace fabric production according to claim 1, characterized in that: The cleaning structure includes two partitions (19), which are fixed at both ends inside the fixed barrel (1). The two partitions (19) divide the interior of the fixed barrel (1) into a cleaning chamber (10) and two installation chambers (11), and the two installation chambers (11) are located at both ends of the cleaning chamber (10). The cleaning chamber (10) is equipped with a plurality of guide wheels (13), which restrict the yarn body (3) so that the yarn body (3) passes through the inside of the cleaning chamber (10). The installation chamber (11) is equipped with a transducer (12).

3. The yarn tension equalizer for lace fabric production according to claim 2, characterized in that: A stirring screw (14) is installed on the outside of the fixed barrel (1), and a first motor (15) is rotatably connected inside the cleaning chamber (10). The output end of the first motor (15) passes through the fixed barrel (1) and is connected to the stirring screw (14).

4. The yarn tension equalizer for lace fabric production according to claim 1, characterized in that: The drying structure includes a mounting housing (27) installed at the bottom of the mounting plate (2), a heating wire (28) installed inside the mounting housing (27), and a fan (29) installed inside the mounting housing (27) and on top of the heating wire (28).

5. A yarn tension equalizer for lace fabric production according to claim 4, characterized in that: The mounting plate (2) has a first sliding block (21) and a second sliding block (23) installed on both sides of its top. The top of the second sliding block (23) is rotatably connected to a second limiting wheel (22), and the top of the first sliding block (21) is rotatably connected to a first limiting wheel (20). The yarn body (3) is fed into the tensioning mechanism position through the conduction of the first limiting wheel (20) and the second limiting wheel (22). A drive structure is mounted on the top of the mounting plate (2).

6. A yarn tension equalizer for lace fabric production according to claim 5, characterized in that: The drive structure includes a third screw (18) and a second screw (17) rotatably connected to the top of the mounting plate (2). The second screw (17) is threadedly connected to the second sliding block (23), and the third screw (18) is threadedly connected to the first sliding block (21). The third screw (18) and the second screw (17) are arranged in parallel, and the helical directions of the second screw (17) and the third screw (18) are opposite. The second sliding block (23) and the first sliding block (21) are both slidably connected to the mounting plate (2). A synchronous transmission mechanism is installed between the second screw (17) and the third screw (18). A second motor (26) is installed on the mounting plate (2), and the output end of the second motor (26) is connected to the second screw (17) or the third screw (18).

7. A yarn tension equalizer for lace fabric production according to claim 6, characterized in that: The synchronous transmission mechanism includes pulleys (24) fixed to the ends of the second screw (17) and the third screw (18), respectively, and the two pulleys (24) are connected by a transmission belt (25).

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