A weft thread tension regulating device

Abstract

The present disclosure relates to the technical field of textile processing, and one embodiment of the present disclosure provides a weft thread tension adjusting device, which comprises a setting disc, a side wall of the setting disc is provided with a thread inlet rack, a swing adjusting assembly is arranged on the setting disc, and a driving limiting assembly is arranged on the setting disc; the swing adjusting assembly comprises a swing rack. Through the above technical scheme, the technical problem that the traditional tension adjusting mode in the prior art cannot fundamentally meet the needs of diversified weft threads is solved. If the weft thread tension is too large, when light and thin fabrics such as the light and thin fabrics used for the straight-sleeve silk cotton robe with printed and colored yarns in the Western Han Dynasty are woven, the extremely thin weft thread may be broken due to being unable to withstand the too large tension; if the tension is too small, the fabric may be loose, the lines may be unclear, and the like, which seriously affects the appearance and intrinsic quality of the fabric.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the field of textile processing technology, and more specifically, to a weft tension adjustment device. Background Technology

[0002] In the textile industry, precise control of weft tension has always been a key factor affecting fabric quality. In early textile processes, the means of adjusting weft tension were relatively limited and crude. Weft tension was controlled by adjusting the shuttle throwing force and the pressing pressure during weft insertion. This method was not only inefficient, but also required extremely high weaving skills. It was difficult to ensure the consistency of weft tension by different weavers or by the same weaver under different conditions, resulting in inconsistent fabric quality. Even in some simple mechanical weaving equipment, weft tension adjustment relied only on simple friction devices, which could not flexibly cope with changes in different weaving processes and weft materials.

[0003] With the development of the textile industry, various new fiber materials have emerged, such as high-strength synthetic fibers and functional fibers with special properties. Traditional tension adjustment methods simply cannot meet the diverse needs of weft yarns. If the weft yarn tension is too high, such as when weaving lightweight fabrics like the printed and colored silk robes used in the Western Han Dynasty, the extremely fine weft yarns may break due to the excessive tension. If the tension is too low, the fabric will become loose and the texture will be unclear, seriously affecting the appearance and internal quality of the fabric. Utility Model Content

[0004] To overcome the above-mentioned defects, the embodiments of this disclosure provide a weft tension adjustment device. When weaving lightweight fabrics, such as the lightweight fabric used in the printed and colored silk robe of the Western Han Dynasty, the extremely fine weft threads may break due to excessive tension. If the tension is too small, the fabric will become loose and the texture will be unclear, which seriously affects the appearance and internal quality of the fabric.

[0005] According to one aspect, at least one embodiment of this disclosure provides a weft tension adjustment device, comprising:

[0006] A mounting tray, wherein a cable inlet frame is provided on the side wall of the mounting tray;

[0007] A swing adjustment assembly is disposed on the mounting plate;

[0008] A drive limiting component is disposed on the mounting plate;

[0009] The swing adjustment assembly includes a swing frame, which is pin-connected to the upper end face of the mounting plate. An adjustment frame is provided on the side wall of the swing frame, and a connecting groove is provided on the side wall of the adjustment frame. A wire guide ring is provided inside the connecting groove, and a wire guide shaft is provided on the upper end face of the wire feed frame. The wire guide ring and the wire guide shaft are at the same height.

[0010] As a further technical solution, the number of the wire guide spools and the wire guide rings is several, and the multiple wire guide spools and the wire guide rings are arranged alternately.

[0011] As a further technical solution, the drive limiting component includes a drive cavity, which is opened inside the mounting plate. A reset spring is provided inside the drive cavity, and the reset spring is fixedly connected to the swing frame.

[0012] As a further technical solution, the swing frame is provided with a limit slide, the adjustment frame is rotatably connected with a screw shaft, the adjustment frame is provided with a servo motor, the screw shaft is inserted into the interior of the limit slide, the screw shaft is connected to the output shaft of the servo motor, the return spring is sleeved around the screw shaft, and the lower end of the return spring is connected to the screw shaft.

[0013] As a further technical solution, the upper end face of the swing frame is provided with a wire guide shaft, and the wire guide shaft is provided with a wire guide wheel.

[0014] As a further technical solution, the side wall of the mounting tray is provided with an extension frame, the upper end face of the extension frame is provided with a limiting piece, the inside of the limiting piece is provided with a wiring hole, and the height of the wiring hole is matched to that of the wiring wheel.

[0015] As a further technical solution, the wire guide ring is fixedly inserted inside the connecting groove, and the wire guide ring is located at the interval of the wire guide shaft.

[0016] As a further technical solution, the side wall of the adjustment frame is provided with a insertion cavity, and one end of the swing frame is inserted into the insertion cavity.

[0017] The beneficial effects of the embodiments disclosed herein are as follows:

[0018] In this disclosure, the weft tension adjustment device, through the coordinated operation of a cleverly designed swing adjustment component and a drive limiting component, can achieve precise control of weft tension. The adjustment frame on the swing frame can move within the limiting slide through a rotating shaft, precisely changing the position of the thread loop, thereby adjusting the weft thread path and curvature. When there is a slight change in weft tension, the swing frame will swing around the pin shaft, and the return spring inside the drive cavity will provide a corresponding return force, enabling the swing frame and adjustment frame to quickly adjust and stabilize the weft tension within the set range. This precise tension control avoids problems such as weft thread breakage due to excessive tension or fabric loosening and unclear texture due to insufficient tension. It effectively improves the smoothness and density uniformity of the fabric, significantly enhances the appearance and internal quality of the fabric, and meets the production needs of the modern textile industry for high-quality fabrics. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0020] Figure 1 This is a schematic diagram of a structure in one embodiment of the present disclosure;

[0021] Figure 2 This is a side view of the adjusting frame of this disclosure;

[0022] Figure 3 This is a cross-sectional view of the installation plate disclosed herein;

[0023] In the diagram: 1. Placement tray; 2. Cable feeder; 3. Swing adjustment assembly; 3-1. Swing frame; 3-2. Adjustment frame; 3-3. Connecting slot; 3-4. Cable guide ring; 3-5. Cable guide shaft; 4. Drive limit assembly; 4-1. Drive cavity; 4-2. Return spring; 4-3. Limit slide; 4-4. Twisting shaft; 4-5. Servo motor; 5. Cable guide shaft; 6. Cable guide wheel; 7. Extension frame; 8. Limiting plate; 9. Cable guide hole; 10. Insertion cavity. Detailed Implementation

[0024] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0025] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0026] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0027] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0028] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0029] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0030] like Figures 1-3 As shown, it illustrates a weft tension adjustment device of this disclosure, comprising:

[0031] The installation tray 1 has a cable tray 2 installed on its side wall;

[0032] Swing adjustment component 3 is mounted on the mounting plate 1;

[0033] Drive limit component 4, drive limit component 4 is set on the mounting plate 1;

[0034] The swing adjustment assembly 3 includes a swing frame 3-1, which is pin-connected to the upper end face of the mounting plate 1. An adjustment frame 3-2 is provided on the side wall of the swing frame 3-1, and a connecting groove 3-3 is provided on the side wall of the adjustment frame 3-2. A wire guide ring 3-4 is provided inside the connecting groove 3-3. A wire guide shaft 3-5 is provided on the upper end face of the wire feed frame 2. The wire guide ring 3-4 and the wire guide shaft 3-5 are at the same height.

[0035] The drive limiting assembly 4 includes a drive cavity 4-1, which is located inside the mounting plate 1. A reset spring 4-2 is installed inside the drive cavity 4-1, and the reset spring 4-2 is fixedly connected to the swing frame 3-1.

[0036] In some examples, the placement tray 1 is securely installed in a suitable position on the knitting equipment to ensure it does not shake or shift during operation. A yarn feeder 2 is installed on the side wall of the placement tray 1. The installation angle and position of the yarn feeder 2 must ensure that the weft yarn can pass smoothly and match the position of the subsequent yarn guide spool 3-5, allowing the weft yarn to naturally transition onto the yarn guide spool 3-5. The swing frame 3-1 is precisely connected to the upper surface of the placement tray 1 via a pin, ensuring that the swing frame 3-1 can swing flexibly around the pin without any jamming during the swing. An adjusting frame 3-2 is installed on the side wall of the swing frame 3-1. The side wall of the adjusting frame 3-2 has a connecting groove 3-3. The yarn guide ring 3-4 is fixedly inserted into the connecting groove 3-3. A drive cavity 4-1 is opened inside the placement tray 1, and a return spring 4-2 is installed inside the drive cavity 4-1. 2 is firmly fixedly connected to the swing frame 3-1. The elastic coefficient of the return spring 4-2 needs to be reasonably selected according to the material, thickness and tension range of the weft yarn, so as to ensure that it can provide a suitable return force for the swing frame 3-1. When the tension of the weft yarn changes, the swing frame 3-1 will swing around the pin shaft under force. At this time, the return spring 4-2 plays a buffering and restoring role. The swing range of the swing frame 3-1 is limited by the limiting slide 4-3 and other possible limiting structures on the mounting plate 1 to prevent the swing frame 3-1 from swinging excessively and affecting the normal operation of the device. The weft yarn is introduced from the inlet frame 2, passes through the thread guide 3-5, the thread guide ring 3-4 in sequence, then passes through the thread guide wheel 6, and finally passes out from the thread guide hole 9 of the limiting plate 8. During the threading process, it is necessary to ensure that the weft yarn is in the correct position in each component without tangling or jamming.

[0037] The positions of each component can be further fine-tuned or the return springs 4-2 with different elastic coefficients can be replaced according to the actual weft tension adjustment effect.

[0038] like Figures 1-3As shown, this embodiment proposes a certain number of thread guide spools 3-5 and thread guide rings 3-4, with the multiple thread guide spools 3-5 and thread guide rings 3-4 arranged alternately.

[0039] In some examples, multiple guide spools 3-5 and guide loops 3-4 are staggered. This arrangement allows the weft yarn to be subjected to forces in different directions during its passage, which is beneficial for subsequent tension adjustment.

[0040] For example, such as Figure 2 As shown, the swing frame 3-1 is provided with a limit slide 4-3, the adjusting frame 3-2 is rotatably connected with a screw shaft 4-4, the adjusting frame 3-2 is provided with a servo motor 4-5, the screw shaft 4-4 is inserted into the inside of the limit slide 4-3, the screw shaft 4-4 is connected to the output shaft of the servo motor 4-5, the return spring 4-2 is sleeved on the outside of the screw shaft 4-4, and the lower end of the return spring 4-2 is connected to the screw shaft 4-4.

[0041] In some examples, the swing frame 3-1 is equipped with a limit slide 4-3, and the turning shaft 4-4 on the adjusting frame 3-2 is inserted into the limit slide 4-3. The upper end of the return spring 4-2 is fixedly connected to the swing frame 3-1. Rotation of the servo motor 4-5 drives the turning shaft 4-4 to rotate, thereby driving the return spring 4-2 to generate torque. This adjusts the torque exerted by the return spring 4-2 on the adjusting frame 3-2 as a whole, thus achieving the adjustment of the weft tension. The servo motor 4-5 is equipped with a brake, which improves the stability and safety of the device during operation.

[0042] For example, such as Figure 1 As shown, a cable guide shaft 5 is provided on the upper end face of the swing frame 3-1, and a cable guide wheel 6 is provided on the cable guide shaft 5.

[0043] In some examples, a thread guide spool 5 is installed on the upper surface of the swing frame 3-1, and a thread guide wheel 6 is installed on the thread guide spool 5 to ensure that the thread guide wheel 6 can rotate flexibly and reduce the friction between the weft thread and the thread guide spool 5.

[0044] For example, such as Figure 1 As shown, the side wall of the mounting plate 1 is provided with an extension frame 7, the upper end surface of the extension frame 7 is provided with a limiting piece 8, the inside of the limiting piece 8 is provided with a cable routing hole 9, and the height of the cable routing hole 9 is matched to that of the cable routing wheel 6.

[0045] In some examples, an extension frame 7 is installed on the side wall of the mounting tray 1. The installation height and angle of the extension frame 7 need to be adapted to the thread guide wheel 6 on the swing frame 3-1. A limiting piece 8 is installed on the upper end face of the extension frame 7. A thread guide hole 9 is provided inside the limiting piece 8. The height of the thread guide hole 9 needs to be precisely matched with the height of the thread guide wheel 6 so that the weft thread can pass smoothly through the thread guide hole 9 from the thread guide wheel 6 and remain stable during the passage. This further limits and guides the weft thread, ensuring the stability of the weft thread throughout the entire conveying process and facilitating better adjustment of the weft thread tension.

[0046] For example, such as Figure 1 As shown, the wire guide ring 3-4 is fixedly inserted inside the connecting groove 3-3, and the wire guide ring 3-4 is located at the interval of the wire guide shaft 3-5.

[0047] In some examples, the guide ring 3-4 needs to be installed at the interval of the guide spool 3-5 and at the same height as the guide spool 3-5 to ensure that the weft yarn can smoothly transition from the guide spool 3-5 to the guide ring 3-4.

[0048] For example, such as Figure 2 As shown, the side wall of the adjusting frame 3-2 is provided with a insertion cavity 10, and one end of the swing frame 3-1 is inserted into the insertion cavity 10.

[0049] In some examples, the insertion cavity 10 provided on the side wall of the adjusting frame 3-2 is used to fit tightly with one end of the swing frame 3-1. By inserting one end of the swing frame 3-1 into the insertion cavity 10, a stable connection is achieved between the adjusting frame 3-2 and the swing frame 3-1, making the two a relatively stable integral structure.

[0050] In use, when the weft yarn begins to be fed, the weft yarn is introduced from the infeed frame 2 and passes through the guide shaft 3-5 on it. The guide shaft 3-5 plays an initial guiding role, allowing the weft yarn to move forward along the predetermined path. Since the guide shaft 3-5 and the guide ring 3-4 are staggered and at the same height, the weft yarn can smoothly transition to the guide ring 3-4 in the connecting groove 3-3 on the side wall of the adjusting frame 3-2. The guide ring 3-4 further limits and guides the weft yarn, ensuring that the weft yarn remains stable during transmission and does not deviate or entangle, laying the foundation for subsequent tension adjustment.

[0051] During the transmission of weft yarn, if the tension of the weft yarn changes, for example, when the tension increases, the weft yarn will exert a greater pulling force on the yarn guide wheel 6 on the swing frame 3-1. Since the swing frame 3-1 is connected to the mounting plate 1 by a pin, the swing frame 3-1 will swing around the pin. At the same time, the adjusting frame 3-2 is tightly connected to the swing frame 3-1 through the insertion cavity 10. The swing of the swing frame 3-1 will drive the adjusting frame 3-2 to move in coordination. The turning shaft 4-4 on the adjusting frame 3-2 moves within the limiting slide 4-3, which can change the position of the adjusting frame 3-2, and thus adjust the position of the yarn guide ring 3-4. By changing the position of the yarn guide ring 3-4, the yarn path and curvature of the weft yarn can be changed, thereby adjusting the weft yarn tension. When the weft yarn tension decreases, the return spring 4-2 will provide a return force to the swing frame 3-1, so that it returns to the initial or appropriate position to maintain the stability of the weft yarn tension.

[0052] The return spring 4-2, installed inside the drive cavity 4-1 of the drive limiting assembly 4, is fixedly connected to the swing frame 3-1. When the weft tension changes and causes the swing frame 3-1 to swing, the return spring 4-2 will generate a corresponding elastic force according to the swing amplitude. When the tension increases and the swing frame 3-1 swings, the return spring 4-2 is stretched, generating a reverse tension force to prevent the swing frame 3-1 from swinging excessively. When the tension decreases, the return spring 4-2 contracts, pushing the swing frame 3-1 back to its original position. At the same time, the limiting slide 4-3 restricts the movement range of the adjusting frame 3-2. Combined with the function of the return spring 4-2, it ensures that the swing frame 3-1 and the adjusting frame 3-2 move within a certain range, making the adjustment of the weft tension controllable and avoiding instability of the weft tension or damage to the equipment due to excessive adjustment.

[0053] The extension frame 7 on the side wall of the mounting plate 1 and the limiting piece 8 on its upper end face play an auxiliary stabilizing role in the transmission of weft yarn. The thread hole 9 inside the limiting piece 8 is precisely matched with the thread wheel 6. After the weft yarn passes through the thread wheel 6, it passes through the thread hole 9 and continues to be transmitted. The thread hole 9 limits the weft yarn again to ensure that the weft yarn always stays on the predetermined path during the transmission process, preventing the weft yarn from deviating due to factors such as tension changes. This further ensures the stability and reliability of the weft yarn tension adjustment. Through the coordinated cooperation between the components, dynamic and precise adjustment of the weft yarn tension is achieved.

[0054] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A weft tension adjusting device, characterized in that, include: A mounting tray (1) is provided with a cable tray (2) on its side wall; A swing adjustment assembly (3) is disposed on the mounting plate (1); A drive limiting component (4) is disposed on the mounting plate (1); The swing adjustment assembly (3) includes a swing frame (3-1), which is pin-connected to the upper end face of the mounting plate (1). An adjustment frame (3-2) is provided on the side wall of the swing frame (3-1), and a connecting groove (3-3) is provided on the side wall of the adjustment frame (3-2). A wire guide ring (3-4) is provided inside the connecting groove (3-3). A wire guide shaft (3-5) is provided on the upper end face of the wire feed frame (2). The wire guide ring (3-4) and the wire guide shaft (3-5) are at the same height.

2. The weft tension adjusting device according to claim 1, characterized in that, The number of the wire guides (3-5) and the wire guides (3-4) is several, and the multiple wire guides (3-5) and the wire guides (3-4) are arranged alternately.

3. The weft tension adjusting device according to claim 1, characterized in that, The drive limiting assembly (4) includes a drive cavity (4-1), which is located inside the mounting plate (1). A reset spring (4-2) is provided inside the drive cavity (4-1), and the reset spring (4-2) is fixedly connected to the swing frame (3-1).

4. The weft tension adjusting device according to claim 3, characterized in that, The swing frame (3-1) is provided with a limit slide (4-3), the adjusting frame (3-2) is rotatably connected with a screw shaft (4-4), the adjusting frame (3-2) is provided with a servo motor (4-5), the screw shaft (4-4) is inserted into the interior of the limit slide (4-3), the screw shaft (4-4) is connected to the output shaft of the servo motor (4-5), the return spring (4-2) is sleeved on the outside of the screw shaft (4-4), and the lower end of the return spring (4-2) is connected to the screw shaft (4-4).

5. The weft tension adjusting device according to claim 1, characterized in that, The upper end face of the swing frame (3-1) is provided with a cable guide shaft (5), and a cable guide wheel (6) is provided on the cable guide shaft (5).

6. The weft tension adjusting device according to claim 5, characterized in that, The side wall of the mounting plate (1) is provided with an extension frame (7), and the upper end surface of the extension frame (7) is provided with a limiting piece (8). The inside of the limiting piece (8) is provided with a wiring hole (9), and the height of the wiring hole (9) is matched to that of the wiring wheel (6).

7. The weft tension adjusting device according to claim 1, characterized in that, The wire guide ring (3-4) is fixedly inserted inside the connecting groove (3-3), and the wire guide ring (3-4) is located at the interval of the wire guide shaft (3-5).

8. The weft tension adjusting device according to claim 1, characterized in that, The side wall of the adjusting frame (3-2) is provided with a plug-in cavity (10), and one end of the swing frame (3-1) is inserted into the interior of the plug-in cavity (10).

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