Knitted fabric weft knitting equipment capable of improving yarn tension

Abstract

The utility model relates to the technical field of knitted fabric weft knitting, and discloses a knitted fabric weft knitting device capable of improving yarn tension, which comprises a plurality of groups of weft knitting needles for weft knitting of knitted fabric yarns, and a first tension adjusting mechanism for adjusting the tension of the knitted fabric yarns is arranged outside the weft knitting needles. The position of the connecting frame is adjusted through the telescopic rod, then the distance between the rotating rod and the weft knitting needle is changed, and therefore the tension degree of the yarn is accurately adjusted. Meanwhile, the reverse thrust effect of the first spring can relieve pressure generated in the yarn conduction process, and large fluctuation of tension force is avoided. The combined design of the first motor, the threaded rod and the movable plate further ensures that the tightness of the first spring is adjustable, so that the elasticity of the first spring always meets the production standard, the yarn tension is kept stable, and the quality of the knitted fabric is ensured. And the staggered abutting teeth on the driving wheel are in contact with the connecting blocks in sequence, so that efficient winding weft knitting operation can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of weft knitting of knitted fabrics, in particular to a weft knitting device for knitted fabrics which can improve the tension of yarns. Background Art

[0002] Existing weft knitting equipment generally uses multiple weft knitting needles to continuously wind the yarn into circles along the weft direction of the cloth surface. When the weft knitting needles are winding, the rotatable parts on the weft knitting needles hook the yarn into the weft knitting needles. However, after the yarn enters the weft knitting needles, some of the yarns have insufficient tension, resulting in loose woven products.

[0003] In order to solve the problem of insufficient tension, a weft knitted fabric weaving device disclosed in Chinese patent publication number CN217600965U proposes a solution. The existing device can increase the tension of the yarn by setting a weft knitting needle and using a spring to resist a sleeve rod that can slide along a rotating rod, thereby improving the quality of the woven product. However, although the existing device increases the tension of the yarn by the spring resisting the sleeve rod, due to the relatively fixed extension length of the spring and the relatively fixed distance between the rotating rod and the weft knitting needle, it lacks sufficient adjustment flexibility and accuracy, and cannot perform detailed tension adjustment according to different yarn materials, knitting speeds or pattern requirements, resulting in uneven tension and uneven tightness in some areas of the knitted fabric, affecting the overall quality and aesthetics of the woven product. Utility Model Content

[0004] The utility model aims to provide a weft knitting device for knitted fabrics which can improve the tension of yarns, and can realize accurate adjustment of the tension of yarns while avoiding the phenomenon of large fluctuations in the tension of yarns.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a knitted fabric weft knitting device for improving yarn tension, comprising a plurality of weft knitting needles for weft knitting knitted fabric yarns, wherein a first tension adjustment mechanism for adjusting the tension of the knitted fabric yarns is arranged outside the weft knitting needles.

[0006] The first tension adjustment mechanism comprises a plurality of bottom frames arranged outside the weft knitting needles, wherein a slider is slidably arranged in the bottom frame, and a connecting frame is arranged on the top of the slider.

[0007] The top end of the slider is provided with a second tension adjustment mechanism for further adjusting the tension of the knitted fabric yarn.

[0008] The second tension adjustment mechanism comprises a mounting tube arranged on the top of the connection frame, a movable plate is slidably arranged in the mounting tube, an annular top plate is arranged at the top end of the mounting tube, and a first spring is arranged between the movable plate and the annular top plate.

[0009] Preferably, the first tension adjustment mechanism further comprises a mounting seat arranged in the bottom frame, a telescopic rod is arranged in the mounting seat, and an output end of the telescopic rod is connected to the slider.

[0010] Preferably, a cover plate is fixed on the top of the bottom frame, and a limiting sliding groove for the sliding block to slide is provided in the bottom frame.

[0011] Preferably, the second tension adjustment mechanism further comprises a first motor arranged in the connecting frame, the output shaft of the first motor is drivingly connected to a threaded rod, and the movable plate is threadedly connected to the threaded rod.

[0012] Preferably, the second tension adjustment mechanism also includes a connecting sleeve arranged on the top of the annular top plate, and a rotating rod for conducting the knitted fabric yarn is fixed on the side of the connecting sleeve away from the annular top plate.

[0013] Preferably, a mounting groove for mounting the first motor is provided in the connection frame, the threaded rod is rotatably arranged in the mounting tube, and a sliding groove for the movable plate to move is provided in the mounting tube.

[0014] Preferably, a driving mechanism for transmitting the knitted fabric yarn is arranged outside the bottom frame, and the driving mechanism includes a driving rod, and the driving rod is externally connected to multiple groups of driving wheels, and the multiple groups of driving wheels are each externally provided with interference teeth.

[0015] Preferably, the driving mechanism further comprises a connecting block arranged outside the bottom frame, and the abutting teeth are in contact with the connecting block after being rotated.

[0016] Compared with the prior art, the utility model provides a knitted fabric weft knitting device for improving yarn tension, which has the following beneficial effects:

[0017] 1. The knitted fabric weft knitting equipment for increasing yarn tension adjusts the position of the connection frame through the telescopic rod, thereby changing the distance between the rotating rod and the weft knitting needle, thereby achieving precise adjustment of the yarn tension. At the same time, the reverse thrust of the first spring can relieve the pressure generated during the yarn conduction process and avoid large fluctuations in tension. The combined design of the first motor, the threaded rod and the movable plate further ensures that the tightness of the first spring is adjustable, so that its elasticity always meets the production standards, thereby maintaining the stability of the yarn tension and ensuring the quality of the knitted fabric.

[0018] 2. The knitted fabric weft knitting device with improved yarn tension can orderly drive different weft knitting needles to rotate by contacting the connecting block in sequence through the staggered abutting teeth on the driving wheel, thereby realizing efficient winding weft knitting operation. This design not only improves knitting efficiency, but also enhances the flexibility of the device, making the knitting process smoother and able to meet the needs of different knitting patterns and fabrics. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A three-dimensional structure diagram of a weft knitting device for knitted fabrics for increasing yarn tension according to the utility model Figure 1 ;

[0020] Figure 2 A three-dimensional structure diagram of a weft knitting device for knitted fabrics for increasing yarn tension according to the utility model Figure 2 ;

[0021] Figure 3 It is a schematic diagram of the disassembled structure of a first tension adjustment mechanism in a weft knitting device for knitted fabrics for increasing yarn tension according to the utility model;

[0022] Figure 4 A schematic diagram of the three-dimensional structure of the second tension adjustment mechanism in a knitted fabric weft knitting device for increasing yarn tension according to the utility model Figure 1 ;

[0023] Figure 5 A schematic diagram of the three-dimensional structure of the second tension adjustment mechanism in a knitted fabric weft knitting device for increasing yarn tension according to the utility model Figure 2 ;

[0024] Figure 6 It is a schematic diagram of the partially disassembled structure of a second tension adjustment mechanism in a weft knitting device for knitted fabrics for increasing yarn tension according to the utility model;

[0025] Figure 7 The utility model is a three-dimensional structural schematic diagram of a driving mechanism in a weft knitting device for knitted fabrics for improving yarn tension.

[0026] In the figure: 1, weft knitting needle; 2, first tension adjustment mechanism; 21, bottom frame; 22, cover plate; 23, mounting seat; 24, telescopic rod; 25, slider; 26, connecting frame; 3, second tension adjustment mechanism; 31, mounting tube; 32, first motor; 33, threaded rod; 34, movable plate; 35, annular top plate; 36, first spring; 37, connecting sleeve; 38, rotating rod; 4, driving mechanism; 41, driving rod; 42, driving wheel; 43, interference tooth; 44, connecting block. DETAILED DESCRIPTION

[0027] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0028] Example 1: Please refer to Figure 1-Figure 6The utility model provides a technical solution: a knitted fabric weft knitting device for improving yarn tension, comprising a plurality of weft knitting needles 1 for weft knitting knitted fabric yarns, and a first tension adjusting mechanism 2 for adjusting the tension of the knitted fabric yarns is arranged outside the weft knitting needles 1.

[0029] The first tension adjustment mechanism 2 includes a plurality of bottom frames 21 arranged outside the weft knitting needle 1, a slider 25 is slidably arranged in the bottom frame 21, and a connecting frame 26 is arranged on the top of the slider 25. This design allows the height of the connecting frame 26 to be changed by adjusting the position of the slider 25 in the bottom frame 21, thereby adjusting the yarn tension around the weft knitting needle 1, ensuring that the yarn maintains a stable tension during the knitting process, and improving the quality of the knitted fabric. The initial adjustment of the yarn tension is achieved to improve the uniformity and stability of the knitted fabric.

[0030] A second tension adjustment mechanism 3 for further adjusting the tension of the knitted fabric yarn is arranged at the top end of the slider 25 .

[0031] The second tension adjustment mechanism 3 includes a mounting tube 31 disposed on the top of the connection frame 26, a movable plate 34 is slidably disposed in the mounting tube 31, an annular top plate 35 is disposed at the top of the mounting tube 31, and a first spring 36 is disposed between the movable plate 34 and the annular top plate 35. Dynamic tension adjustment capability can be provided to adapt to changes in different yarn materials and weaving speeds.

[0032] Furthermore, the first tension adjustment mechanism 2 further includes a mounting seat 23 disposed in the bottom frame 21, a telescopic rod 24 is disposed in the mounting seat 23, and an output end of the telescopic rod 24 is connected to a slider 25. Through the telescopic movement of the telescopic rod 24, the sliding distance of the slider 25 can be accurately controlled, thereby more finely adjusting the yarn tension.

[0033] Furthermore, a cover plate 22 is fixed on the top of the bottom frame 21, and a limiting slide groove is provided in the bottom frame 21 for the slider 25 to slide. The cover plate 22 and the limiting slide groove together ensure the stability and accuracy of the slider 25 during the sliding process, enhance the stability and durability of the device, and ensure the reliability of the tension adjustment.

[0034] Furthermore, the second tension adjustment mechanism 3 further includes a first motor 32 disposed in the connection frame 26, the output shaft of the first motor 32 is transmission-connected with a threaded rod 33, and the movable plate 34 is threadedly connected to the threaded rod 33. The first motor 32 drives the threaded rod 33 to rotate, which can drive the movable plate 34 to move up and down in the mounting tube 31, thereby adjusting the compression degree of the first spring 36 and further adjusting the yarn tension.

[0035] The second tension adjustment mechanism 3 further includes a connecting sleeve 37 arranged on the top of the annular top plate 35. A rotating rod 38 for conducting the knitted fabric yarn is fixed on the side of the connecting sleeve 37 away from the annular top plate 35. The rotating rod 38 is used to guide the yarn into the weft knitting needle 1. At the same time, the connecting sleeve 37 and the annular top plate 35 provide stable support for the first spring 36.

[0036] Furthermore, a mounting groove for mounting the first motor 32 is provided in the connection frame 26, the threaded rod 33 is rotatably arranged in the mounting tube 31, and a sliding groove for the movable plate 34 is provided in the mounting tube 31. The coordinated work among the first motor 32, the threaded rod 33 and the movable plate 34 is ensured to achieve accurate tension adjustment.

[0037] Example 2: Please refer to Figure 7 , and combined with the first embodiment, it is further obtained that a driving mechanism 4 for transmitting the yarn of the knitted fabric is arranged outside the bottom frame 21, and the driving mechanism 4 includes a driving rod 41, and the driving rod 41 is connected to multiple sets of driving wheels 42, and the multiple sets of driving wheels 42 are all provided with a conflicting tooth 43. After the conflicting tooth 43 contacts with the connecting block 44, the weft knitting needle 1 can be driven to rotate to realize the weft knitting operation of the yarn.

[0038] Furthermore, the driving mechanism 4 further includes a connecting block 44 disposed outside the bottom frame 21, and the abutting teeth 43 are in contact with the connecting block 44 after being rotated. This ensures that the abutting teeth 43 on the driving wheel 42 can sequentially contact with the connecting block 44, thereby driving the weft knitting needle 1 to rotate in an orderly manner, realizing the automation and continuity of the weft knitting operation, and improving the knitting efficiency.

[0039] In actual operation, the knitted fabric yarn is rotated by the rotating rod 38 and wound into the weft knitting needle 1. When the driving wheel 42 rotates, the staggered abutting teeth 43 thereon contact with the connecting block 44 in sequence, driving different weft knitting needles 1 to rotate, and completing the winding weft knitting.

[0040] To adjust the yarn tension, the telescopic rod 24 can be opened to allow the slider 25 to slide in the limiting slot of the bottom frame 21, and the position of the connecting frame 26 can be adjusted, thereby changing the distance between the rotating rod 38 and the weft knitting needle 1.

[0041] The pressure generated during the yarn conduction process can be relieved by the first spring 36 to avoid large fluctuations in tension. To ensure timely offset of the pressure, the first motor 32 can be started to rotate the threaded rod 33, driving the movable plate 34 to slide in the slide groove of the mounting tube 31. Since the position of the annular top plate 35 is fixed, the tightness of the first spring 36 can be adjusted to ensure that its elastic force meets the production standard and maintains stable yarn tension.

[0042] The above embodiments only express one or several implementation methods of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the attached claims.

Claims

1. A knitted fabric weft knitting device for increasing yarn tension, comprising a plurality of weft knitting needles (1) for weft knitting knitted fabric yarns, characterized in that: A first tension adjustment mechanism (2) for adjusting the tension of the knitted fabric yarn is arranged outside the weft knitting needle (1); the first tension adjustment mechanism (2) comprises a plurality of bottom frames (21) arranged outside the weft knitting needle (1), a slider (25) is slidably arranged in the bottom frame (21), and a connecting frame (26) is arranged on the top of the slider (25); a second tension adjustment mechanism (3) for further adjusting the tension of the knitted fabric yarn is arranged at the top of the slider (25); the second tension adjustment mechanism (3) comprises a mounting tube (31) arranged at the top of the connecting frame (26), a movable plate (34) is slidably arranged in the mounting tube (31), an annular top plate (35) is arranged on the top of the mounting tube (31), and a first spring (36) is arranged between the movable plate (34) and the annular top plate (35).

2. The weft knitting device for knitted fabrics for increasing yarn tension according to claim 1, characterized in that: The first tension adjustment mechanism (2) further comprises a mounting seat (23) arranged in the bottom frame (21), a telescopic rod (24) being arranged in the mounting seat (23), and an output end of the telescopic rod (24) being connected to a slider (25).

3. The weft knitting device for knitted fabrics for increasing yarn tension according to claim 2, characterized in that: A cover plate (22) is fixed to the top of the bottom frame (21), and a limiting sliding groove for the sliding block (25) to slide is provided in the bottom frame (21).

4. The weft knitting device for knitted fabrics with improved yarn tension according to claim 1, characterized in that: The second tension adjustment mechanism (3) further comprises a first motor (32) arranged in the connection frame (26); a threaded rod (33) is transmission-connected to an output shaft of the first motor (32); and the movable plate (34) is threadedly connected to the threaded rod (33).

5. The weft knitting device for knitted fabrics for increasing yarn tension according to claim 1, characterized in that: The second tension adjustment mechanism (3) further comprises a connecting sleeve (37) arranged on the top of the annular top plate (35), and a rotating rod (38) for conducting the knitted fabric yarn is fixed on a side of the connecting sleeve (37) away from the annular top plate (35).

6. The weft knitting device for knitted fabrics with improved yarn tension according to claim 4, characterized in that: The connection frame (26) is provided with a mounting groove for mounting the first motor (32), the threaded rod (33) is rotatably arranged in the mounting tube (31), and the mounting tube (31) is provided with a sliding groove for the movable plate (34) to move.

7. The weft knitting device for knitted fabrics with improved yarn tension according to claim 1, characterized in that: A driving mechanism (4) for transmitting knitted fabric yarn is arranged outside the bottom frame (21), the driving mechanism (4) comprising a driving rod (41), the driving rod (41) being externally connected to a plurality of driving wheels (42), the plurality of driving wheels (42) being externally provided with abutment teeth (43).

8. The weft knitting device for knitted fabrics for increasing yarn tension according to claim 7, characterized in that: The driving mechanism (4) further comprises a connecting block (44) arranged outside the bottom frame (21), and the abutting teeth (43) contact the connecting block (44) after being rotated.

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