Weft yarn tension adjusting device of warp knitting machine

Abstract

The utility model relates to the technical field of warp knitting, in particular to a weft yarn tension adjusting device of a warp knitting machine, which comprises a mounting seat mounted on a creel of the warp knitting machine; the clamp body is arranged on the mounting seat and comprises an upper clamp body, a lower clamp body, an upper handle and a lower handle, the upper clamp body is provided with an upper mounting plate, the lower clamp body is provided with a lower mounting plate, the upper mounting plate is provided with a plurality of upper yarn guide ports at intervals, and the lower mounting plate is provided with a lower yarn guide port between the two upper yarn guide ports; and the control structure applies pressure to the upper handle and the lower handle so as to control the opening and closing angles of the upper clamp body and the lower clamp body. The tension adjusting device has the characteristics of convenience in tension adjustment and large tension range.

Description

Technical Field

[0001] The utility model relates to the technical field of warp knitting, in particular to a weft tension regulating device for a warp knitting machine. Background Art

[0002] Using one or several groups of parallel weft yarns to form loops on all the working needles of the machine fed in the warp direction at the same time to form a knitted fabric is called warp knitting, and the fabric is called warp knitted fabric. The machine that completes this warp knitting is called a warp knitting machine. The glass fiber fabric currently widely used in the wind power industry is woven by a warp knitting machine. Because the laying directions of each layer of weft yarn in the glass fiber fabric are different, the glass fiber weft yarn is divided into warp yarn and weft yarn according to the direction of introduction into the warp knitting machine during the weaving process. Both the warp yarn and the weft yarn are introduced into the warp knitting machine through a specific device, which is called a warp frame or a weft frame.

[0003] At present, the weft yarn frames of warp knitting machines at home and abroad all use double-row yarn frames, which occupy too much space; the glass fiber yarn bobbin needs to be manually carried, which is inefficient; the tension rod is used to control the tension of the glass fiber, and it is difficult to adjust the consistency of the weft yarn tension. There are too many weft yarn channels, and the weft yarn is seriously worn, which affects the appearance and mechanical properties of the fabric.

[0004] Based on the above situation, the existing Chinese patent announcement number CN206266812U discloses a warp knitting machine weft frame, which is used in the production of glass fiber fabrics. Each single-row creel is divided into three parts: a creel, a tensioner and a porcelain eye. The creel plays a supporting role; the tensioner plays a role in adjusting the tension of the weft feeding and guiding the weft; the porcelain eye is responsible for combing the channel of the weft yarn to ensure that the angle of the weft yarn entering the tensioner is not large, reducing the influence of the weft angle on the tensioner; the yarn passes through the weft feeding traction force of the warp knitting equipment, unwinds from the yarn tube, passes through the porcelain eye diversion, enters the tensioner to adjust the tension to be consistent, and finally reaches the warp knitting equipment. Through the above technical solution, the area occupied by the weft frame can be reduced by 50%, and the weft tension control of the weft yarn is simple and more effective. However, in the above structure, the tension of the weft yarn is adjusted by two guide rods. Due to the limited size of the equipment, the adjustment range of the guide rod is limited, which easily makes the weft yarn lack pre-tightening force, and also leads to a small adjustment range of the weft yarn tension and a short adjustment distance, which cannot meet the weft yarn tension requirements and affect the weaving quality of the fabric. Utility Model Content

[0005] Therefore, in view of the above-mentioned problems, the utility model proposes a weft tension adjustment device for a warp knitting machine, which has the characteristics of being easy to adjust the tension and having a wide tension range.

[0006] To achieve the above purpose, the utility model adopts the following technical solution: a weft tension adjustment device for a warp knitting machine, comprising:

[0007] The mounting seat is mounted on the warp knitting machine creel.

[0008] The clamp body is arranged on the mounting seat, and comprises an upper clamp body, a lower clamp body, an upper handle and a lower handle, wherein the upper clamp body is provided with an upper mounting plate, the lower clamp body is provided with a lower mounting plate, the upper mounting plate is provided with a plurality of upper yarn guide ports at intervals, and the lower mounting plate is provided with a lower yarn guide port between two upper yarn guide ports;

[0009] The control structure applies pressure to the upper handle and the lower handle to control the opening and closing angles of the upper clamp body and the lower clamp body.

[0010] Further improvement, the control structure includes a gear set, an upper arc-shaped rack and a lower arc-shaped rack, the gear set is rotatably disposed on a mounting seat, and includes a first gear and a second gear coaxially stacked and with consistent transmission directions, the upper arc-shaped rack and the lower arc-shaped rack are radially symmetrically arranged relative to the gear set, and the upper arc-shaped rack is connected to the upper handle, and the lower arc-shaped rack is connected to the lower handle, and the gear set is provided with a handwheel to control its rotation.

[0011] A further improvement includes a locking structure to prevent the gear set from rotating.

[0012] As a further improvement, a protective cover is provided on the outer side cover of the gear set.

[0013] By adopting the above-mentioned technical scheme, the beneficial effects of the utility model are as follows: the utility model increases the stroke of the weft yarn in the clamp body by providing a clamp body and a control structure, as well as multiple upper yarn guide ports and lower yarn guide ports provided on the clamp body, so that the weft yarn has a larger adjustment range and a longer adjustment distance when the tension is adjusted. When in use, the weft yarn passes through the upper yarn guide port, the lower yarn guide port, the upper yarn guide port, ..., the lower yarn guide port, and the upper yarn guide port in sequence, and the opening and closing angle between the upper clamp body and the lower clamp body is adjusted by the control structure, thereby increasing the adjustment range of the weft yarn tension and making the tension on the weft yarn meet more tension requirements. The invention can improve the weaving quality of the woven fabric, has a simple structure, convenient adjustment and strong practicality; further, by utilizing the transmission of the gear set, the upper arc-shaped rack and the lower arc-shaped rack, the synchronous opening and closing of the upper handle and the lower handle can be achieved by controlling the rotation of the hand wheel, so as to conveniently adjust the opening and closing angle between the upper clamp body and the lower clamp body, thereby realizing the adjustment of the weft yarn tension; further, the locking structure can prevent the gear set from self-rotation when not acted upon by external force, thereby ensuring the stability of the adjustment; further, the setting of the protective cover can effectively protect the gear set, prevent it from being hit and damaged by external objects, and improve the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the utility model without the protective cover.

[0016] icon:

[0017] 1. Mounting seat; 21. Upper clamping body; 211. Upper mounting plate; 212. Upper yarn guide port; 22. Lower clamping body; 221. Lower mounting plate; 222. Lower yarn guide port; 23. Upper handle; 24. Lower handle; 31. First gear; 32. Second gear; 33. Upper arc-shaped rack; 34. Lower arc-shaped rack; 35. Hand wheel; 36. Locking screw; 4. Protective cover. DETAILED DESCRIPTION

[0018] The utility model is now further described in conjunction with the accompanying drawings and specific implementation methods.

[0019] refer to Figure 1-2 The present embodiment provides a weft tension adjustment device for a warp knitting machine, comprising a mounting seat 1, a clip body and a control structure.

[0020] The mounting seat 1 is mounted on the yarn frame of the warp knitting machine. The clamp body is arranged on the mounting seat 1, and includes an upper clamp body 21, a lower clamp body 22, an upper handle 23 and a lower handle 24. The upper clamp body 21 and the lower handle 24 are integrally formed, and the lower clamp body 22 and the upper handle 23 are integrally formed. The upper clamp body 21 is provided with an upper mounting plate 211, and the lower clamp body 22 is provided with a lower mounting plate 221. The upper mounting plate 211 is provided with a plurality of upper yarn guide ports 212 at intervals, and the lower mounting plate 221 is provided with a lower yarn guide port 222 between two upper yarn guide ports 212; and the upper yarn guide port 212 and the lower yarn guide port 222 are both provided with ceramic eyes.

[0021] The control structure is used to apply pressure to the upper handle 23 and the lower handle 24 to control the opening and closing angles of the upper clamp body 21 and the lower clamp body 22. Specifically, the control structure includes a gear set, an upper arc-shaped rack 33 and a lower arc-shaped rack 34. The gear set is rotatably arranged on the mounting seat 1, and includes a first gear 31 and a second gear 32 coaxially stacked and with consistent transmission directions. The upper arc-shaped rack 33 and the lower arc-shaped rack 34 are radially symmetrically arranged relative to the gear set, and the upper arc-shaped rack 33 is connected to the upper handle 23, and the lower arc-shaped rack 34 is connected to the lower handle 24. The gear set is provided with a handwheel 35 for controlling its rotation.

[0022] It also includes a locking structure to prevent the gear set from rotating. The locking structure is a locking screw 36, which is arranged on the hand wheel 35. The hand wheel 35 is locked on the protective cover 4 to prevent the gear set from rotating. In practical applications, the locking structure can also be a conventional structure such as a locking handle or an electromagnetic lock. The locking structure can fix the rotation position of the gear set to prevent the gear set from rotating when not acted upon by external forces, thereby ensuring the stability of the tension.

[0023] In this embodiment, a protective cover 4 is provided on the outer cover of the gear set to prevent it from being hit and damaged by external objects, thereby increasing the service life of the device.

[0024] In practical applications, the upper yarn guide port 212 and the lower yarn guide port 222 may also be replaced by a wheel structure to achieve the purpose of the present utility model.

[0025] In practical applications, the control structure may also adopt other structures, such as an electric motor or a pneumatic device, and the opening and closing degree of the upper clamp body 21 and the lower clamp body 22 is controlled by adjusting the rotation angle of the device, thereby adjusting the weft tension. This electric or pneumatic control method can realize automation and precise control, and improve production efficiency and product quality.

[0026] The utility model increases the travel of the weft yarn in the clamp body by providing a clamp body and a control structure, as well as multiple upper yarn guide openings 212 and lower yarn guide openings 222 provided on the clamp body, so that the weft yarn has a larger adjustment range and a longer adjustment distance when the tension is adjusted. When in use, the weft yarn is sequentially passed through the yarn guide opening 212, the lower yarn guide opening 222, the upper yarn guide opening 212, ..., the lower yarn guide opening 222, and the upper yarn guide opening 212, and the opening and closing angle between the upper clamp body 21 and the lower clamp body 22 is adjusted through the control structure, thereby increasing the adjustment range of the weft yarn tension, making the tension on the weft yarn meet more tension requirements, thereby improving the weaving quality of the woven fabric, and having a simple structure, convenient adjustment, and strong practicality.

[0027] Although the present invention has been specifically demonstrated and described in conjunction with the preferred embodiments, those skilled in the art should understand that various changes may be made to the present invention in form and detail without departing from the spirit and scope of the present invention as defined in the appended claims, all of which are within the scope of protection of the present invention.

Claims

1. A weft tension adjustment device for a warp knitting machine, characterized in that: include: A mounting seat, which is mounted on the warp knitting machine creel; The clamp body is arranged on the mounting seat, and comprises an upper clamp body, a lower clamp body, an upper handle and a lower handle, wherein the upper clamp body is provided with an upper mounting plate, the lower clamp body is provided with a lower mounting plate, the upper mounting plate is provided with a plurality of upper yarn guide ports at intervals, and the lower mounting plate is provided with a lower yarn guide port between two upper yarn guide ports; The control structure applies pressure to the upper handle and the lower handle to control the opening and closing angles of the upper clamp body and the lower clamp body.

2. A weft tension adjustment device for a warp knitting machine according to claim 1, characterized in that: The control structure includes a gear set, an upper arc-shaped rack and a lower arc-shaped rack. The gear set is rotatably arranged on a mounting seat and includes a first gear and a second gear which are coaxially stacked and have the same transmission direction. The upper arc-shaped rack and the lower arc-shaped rack are radially symmetrically arranged relative to the gear set, and the upper arc-shaped rack is connected to an upper handle, while the lower arc-shaped rack is connected to a lower handle. A hand wheel is provided on the gear set to control its rotation.

3. A weft tension adjustment device for a warp knitting machine according to claim 2, characterized in that: A locking structure is also included to prevent the gear set from rotating.

4. The weft tension adjustment device for a warp knitting machine according to claim 2, characterized in that: The outer side cover of the gear set is provided with a protective cover.

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