A precise control device for fabric tension of a weft knitting machine

Abstract

The utility model relates to the technical field of flat knitting machine, concretely is a kind of flat knitting machine fabric tension accurate control equipment, including equipment main body, cabinet door, tensioning wheel and tensioning assembly, equipment main body is equipped with mounting plate, mounting plate is fixedly arranged on the surface of equipment main body, the surface of mounting plate is provided with tensioning assembly, tensioning assembly includes press roll, the surface of mounting plate is fixedly connected with bolt, the surface of mounting plate is rotatably connected with pivot, press roll is arranged on the surface of rotating plate.The utility model, by setting tensioning assembly, it is convenient to carry out tensioning treatment to weaving thread, avoid the existing equipment for unified tensioning wheel cannot adjust single yarn, may cause the knitting of yarn to appear flaw, or cause yarn to be taut and cause yarn to be taut and break, increase the possibility of failure, influence the quality of knitted product, yarn tightness is not unified possibly cause yarn winding, need manual adjustment to lead to production efficiency is relatively low, effectively improve the practicability of equipment for this.

Description

Technical Field

[0001] This utility model relates to the field of flat knitting machines, and in particular to a device for precise control of fabric tension on flat knitting machines. Background Technology

[0002] A flat knitting machine, also known as a knitting flat knitting machine, is a type of mechanical equipment used for knitting fabrics. Flat knitting machines knit through a horizontal knitting bed and are mainly used to produce single-width sheet products such as sweaters and T-shirt collars. Based on their development history, flat knitting machines can be divided into hand-cranked flat knitting machines, semi-automatic flat knitting machines, and computerized flat knitting machines. Based on their system, they can be divided into single-system computerized flat knitting machines, double-system computerized flat knitting machines, etc.

[0003] Existing technologies, such as CN216427556U, disclose a flat knitting machine with a tension adjustment mechanism. This machine includes a knitting machine body, a housing fixedly connected to the bottom of the body, a dual-axis motor fixedly connected to the top of the housing's inner cavity, screws fixedly connected to the output ends of both sides of the motor, threaded sleeves threaded to the surface of the screws, a first toothed plate fixedly connected to the bottom of the threaded sleeves, and fixed plates fixedly connected to both sides of the top of the housing's inner cavity. This invention, through the cooperation of the knitting machine body, housing, dual-axis motor, screws, threaded sleeves, first toothed plate, fixed plate, connecting plate, gears, horizontal plate, slide groove, slider, second toothed plate, drive roller, vertical plate, groove, fixed rod, moving block, first spring, inclined block, moving column, base plate, support plate, and pulleys, allows the knitting machine to be moved to a designated position via a convenient moving mechanism, thereby improving the efficiency and practicality of the knitting machine.

[0004] To address the issue of tension control for yarn in existing equipment, which uses a uniform tensioning wheel that cannot adjust individual yarns, potential defects in the knitted yarn or yarn breakage due to excessive tension can increase the likelihood of malfunctions and affect the quality of knitted products. Furthermore, inconsistent yarn tension can cause yarn tangling, requiring manual adjustment and resulting in low production efficiency. Therefore, improvements are needed. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing equipment that uses a uniform tension wheel to adjust individual yarns, which may cause defects in the knitting of yarns, or cause yarn breakage due to excessive tension, increasing the possibility of malfunctions and affecting the quality of knitted products. In addition, inconsistent yarn tension may cause yarn tangling, requiring manual adjustment and resulting in low production efficiency. Therefore, this invention proposes a device for precise tension control of flat knitting fabrics.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a device for precise tension control of flat knitting fabrics, comprising a device body, a cabinet door, a tensioning wheel, and a tensioning assembly. The cabinet door is fixedly connected to the surface of the device body, and the tensioning wheel is rotatably connected to the surface of the device body. The device body is provided with a mounting plate, which is fixedly mounted on the surface of the device body. A tensioning assembly is provided on the surface of the mounting plate, and the tensioning assembly includes a pressure roller. Bolts are fixedly connected to the surface of the mounting plate, and a rotating shaft is rotatably connected to the surface of the mounting plate. A rotating plate is rotatably connected to the surface of the rotating shaft, and the pressure roller is disposed on the surface of the rotating plate.

[0007] Furthermore, there are two sets of mounting plates, with a fixing plate fixedly connected to the surface of the rotating plate, and a long rod inserted into the surface of the fixing plate.

[0008] Furthermore, a pull rod is fixedly connected to the surface of the long rod, and a groove is formed on the surface of the mounting plate, with the long rod engaging with the inner wall of the groove.

[0009] Furthermore, a spring is fixedly connected to the surface of the fixing plate. There are two sets of springs arranged symmetrically. A connecting block is fixedly connected to the end of the spring away from the fixing plate. The connecting block is fixedly connected to the surface of the long rod.

[0010] Furthermore, an L-shaped block is fixedly connected to the surface of the rotating plate, and a sliding groove is formed on the surface of the L-shaped block. A sliding plate is slidably connected to the inner wall of the sliding groove.

[0011] Furthermore, a second spring is fixedly connected to the upper surface of the sliding plate, and the end of the second spring away from the sliding plate is fixedly connected to the surface of the L-shaped block.

[0012] Furthermore, a stabilizing block is fixedly connected to the lower surface of the sliding plate. There are two sets of stabilizing blocks arranged symmetrically, and a pressure roller is rotatably connected to the surface of the stabilizing block.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. In this utility model, by setting a tensioning component, the use of the pressure roller is more convenient when tensioning the yarn. Pulling the pull rod causes the long rod to leave the inner wall of the slot, and the spring is compressed. Then the pull rod is rotated, causing the rotating plate to rotate along the axis of the rotating shaft, thereby adjusting the angle of the pressure roller. When the rotating plate rotates to the appropriate position, the pull rod is released, and the spring is released and stretched, causing the long rod to engage in the corresponding slot.

[0015] 2. In this utility model, after the yarn is driven by the tensioning wheel, since the tensioning wheel is fixed in position, the pressure roller presses onto the surface of the yarn to adjust the tension of the yarn. Then, the pressure roller contacts the yarn, causing it to slide along the inner wall of the groove. The elastic force of the second spring pushes the sliding plate to remain stable, and the pressure roller then pushes the yarn to remain stable. By setting up a tensioning component, it is convenient to tension the yarn, avoiding the existing equipment where a uniform tensioning wheel cannot adjust individual yarns, which may cause defects in the yarn knitting or cause the yarn to break due to excessive tension, increasing the possibility of failure and affecting the quality of knitted products. At the same time, inconsistent yarn tension may cause yarn tangling, requiring manual adjustment and resulting in low production efficiency. Therefore, this invention effectively improves the practicality of the equipment. Attached Figure Description

[0016] Figure 1 This utility model provides a three-dimensional structural schematic diagram of a device for precise control of tension in flat knitting fabrics;

[0017] Figure 2 This utility model provides a schematic diagram of the main structure of the tensioning component in a flat knitting fabric tension precision control device;

[0018] Figure 3 This utility model proposes a device for precise tension control of flat knitting fabrics. Figure 2 Schematic diagram at point A;

[0019] Figure 4 This utility model provides a schematic diagram of the main structure of an L-shaped block in a device for precise tension control of flat knitting fabrics;

[0020] Figure 5 This utility model proposes a device for precise tension control of flat knitting fabrics. Figure 4 Schematic diagram at point B.

[0021] Legend:

[0022] 1. Equipment body; 2. Cabinet door; 3. Tensioning wheel; 4. Tensioning assembly; 41. Mounting plate; 42. Bolt; 43. Rotating shaft; 44. Rotating plate; 45. Fixing plate; 46. Long rod; 47. Tie rod; 48. Slot; 49. Spring 1; 410. Connecting block; 411. L-shaped block; 412. Slide groove; 413. Sliding plate; 414. Spring 2; 415. Stabilizing block; 416. Pressure roller. Detailed Implementation

[0023] Please see Figure 1-5This utility model provides a technical solution: a device for precise control of tension of flat knitting fabric, including a device body 1, a cabinet door 2, a tensioning wheel 3 and a tensioning component 4. The cabinet door is fixedly connected to the surface of the device body 1, the tensioning wheel 3 is rotatably connected to the surface of the device body 1, the device body 1 is provided with a mounting plate 41, the mounting plate 41 is fixedly mounted on the surface of the device body 1, and the surface of the mounting plate 41 is provided with the tensioning component 4.

[0024] The following section will explain the specific settings and functions of tensioning component 4.

[0025] In this embodiment: the tensioning assembly 4 includes a pressure roller 416, a bolt 42 is fixedly connected to the surface of the mounting plate 41, a rotating shaft 43 is rotatably connected to the surface of the mounting plate 41, a rotating plate 44 is rotatably connected to the surface of the rotating shaft 43, and the pressure roller 416 is disposed on the surface of the rotating plate 44.

[0026] Specifically, there are two sets of mounting plates 41, and a fixing plate 45 is fixedly connected to the surface of the rotating plate 44. A long rod 46 is inserted and connected to the surface of the fixing plate 45.

[0027] Specifically, a pull rod 47 is fixedly connected to the surface of the long rod 46, and a groove 48 is formed on the surface of the mounting plate 41, with the long rod 46 engaging with the inner wall of the groove 48.

[0028] Specifically, spring 49 is fixedly connected to the surface of the fixing plate 45. There are two sets of spring 49 arranged symmetrically. A connecting block 410 is fixedly connected to the end of spring 49 away from the fixing plate 45. The connecting block 410 is fixedly connected to the surface of the long rod 46.

[0029] Specifically, an L-shaped block 411 is fixedly connected to the surface of the rotating plate 44, and a groove 412 is provided on the surface of the L-shaped block 411. A sliding plate 413 is slidably connected to the inner wall of the groove 412.

[0030] Specifically, a second spring 414 is fixedly connected to the upper surface of the sliding plate 413, and the end of the second spring 414 away from the sliding plate 413 is fixedly connected to the surface of the L-shaped block 411.

[0031] Specifically, a stabilizing block 415 is fixedly connected to the lower surface of the sliding plate 413. There are two sets of stabilizing blocks 415 arranged symmetrically, and a pressure roller 416 is rotatably connected to the surface of the stabilizing block 415.

[0032] The effects achieved by the above components are as follows: by setting bolt 42, it is easy to fix the mounting plate 41 to the surface of the main body 1 of the equipment; by setting the rotating shaft 43, it is easy for the rotating plate 44 to rotate along the axis of the rotating shaft 43 when rotating; by setting the connection between the long rod 46 and the slot 48, it is easy to fix the position of the rotating plate 44; by setting spring 49, it is easy for the spring 49 to move the long rod 46 after the pull rod 47 is unrestrained and the spring 49 loses its force; by setting connecting block 410, it is easy to connect spring 49 and long rod 46; by setting slide groove 412, it is easy for the sliding plate 413 to move stably along the inner wall of slide groove 412 and constrain the movement trajectory of sliding plate 413; by setting spring 414, it is easy for the spring force of spring 414 to push the sliding plate 413 to remain stable after the pressure roller 416 is squeezed by the yarn.

[0033] Working principle: By setting tensioning component 4, the use of pressure roller 416 is more convenient when tensioning the yarn. Pulling pull rod 47 causes long rod 46 to leave the inner wall of slot 48, and spring 49 is compressed. Then, pull rod 47 is rotated, causing rotating plate 44 to rotate along the axis of rotating shaft 43, which drives pressure roller 416 to adjust the angle. When rotating plate 44 rotates to the appropriate position, pull rod 47 is released, and spring 49 is unrestrained and stretched, so that long rod 46 is engaged in the corresponding slot 48.

[0034] After the yarn is driven by the tensioning wheel 3, since the tensioning wheel 3 is fixed in position, the pressure roller 416 presses against the surface of the yarn to adjust the tension of the yarn. Then, the pressure roller 416 contacts the yarn and slides along the inner wall of the groove 412. The elastic force of the second spring 414 pushes the sliding plate 413 to remain stable. Then, the pressure roller 416 steadily pushes the yarn. By setting the tensioning component 4, it is easy to tension the yarn. This avoids the problem that the existing equipment with a uniform tensioning wheel 3 cannot adjust individual yarns, which may cause defects in the yarn knitting or cause the yarn to break due to excessive tension, increasing the possibility of failure and affecting the quality of knitted products. At the same time, inconsistent yarn tension may cause yarn tangling, which requires manual adjustment and leads to low production efficiency. This effectively improves the practicality of the equipment.

Claims

1. A device for precise tension control of flat knitting fabrics, comprising a main body (1), a cabinet door (2), a tensioning wheel (3), and a tensioning assembly (4), characterized in that: The cabinet door (2) is fixedly connected to the surface of the equipment body (1), the tensioning wheel (3) is rotatably connected to the surface of the equipment body (1), the equipment body (1) is provided with an installation plate (41), the installation plate (41) is fixedly installed on the surface of the equipment body (1), the surface of the installation plate (41) is provided with a tensioning component (4), the tensioning component (4) includes a pressure roller (416), the surface of the installation plate (41) is fixedly connected with a bolt (42), the surface of the installation plate (41) is rotatably connected with a rotating shaft (43), the surface of the rotating shaft (43) is rotatably connected with a rotating plate (44), and the pressure roller (416) is provided on the surface of the rotating plate (44).

2. The flat knitting fabric tension precision control device according to claim 1, characterized in that: The number of mounting plates (41) is two sets. A fixing plate (45) is fixedly connected to the surface of the rotating plate (44), and a long rod (46) is inserted and connected to the surface of the fixing plate (45).

3. The flat knitting fabric tension precision control device according to claim 2, characterized in that: A pull rod (47) is fixedly connected to the surface of the long rod (46), and a groove (48) is formed on the surface of the mounting plate (41). The long rod (46) engages with the inner wall of the groove (48).

4. The flat knitting fabric tension precision control device according to claim 3, characterized in that: The surface of the fixing plate (45) is fixedly connected to a spring (49). There are two sets of springs (49) arranged symmetrically. The end of the spring (49) away from the fixing plate (45) is fixedly connected to a connecting block (410). The connecting block (410) is fixedly connected to the surface of the long rod (46).

5. The flat knitting fabric tension precision control device according to claim 2, characterized in that: An L-shaped block (411) is fixedly connected to the surface of the rotating plate (44), and a sliding groove (412) is provided on the surface of the L-shaped block (411). A sliding plate (413) is slidably connected to the inner wall of the sliding groove (412).

6. The flat knitting machine fabric tension precision control device according to claim 5, characterized in that: A second spring (414) is fixedly connected to the upper surface of the sliding plate (413), and one end of the second spring (414) away from the sliding plate (413) is fixedly connected to the surface of the L-shaped block (411).

7. The flat knitting fabric tension precision control device according to claim 6, characterized in that: The lower surface of the sliding plate (413) is fixedly connected to a stabilizing block (415). There are two sets of stabilizing blocks (415) arranged symmetrically. The surface of the stabilizing block (415) is rotatably connected to a pressure roller (416).

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