A weft knitting apparatus

By adopting an upper thread block and a lower thread block with opposite thread directions in the shock absorption component of the weft knitting machine, combined with a turning component and a connecting component, the shock absorption component can be easily disassembled and assembled, solving the problem of high replacement cost in the existing technology.

CN224378388UActive Publication Date: 2026-06-19QUANZHOU HELUN WEAVING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QUANZHOU HELUN WEAVING CO LTD
Filing Date
2025-06-30
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

The connection between the shock-absorbing spring and the shock-absorbing assembly in existing weft knitting machines makes it inconvenient to replace individual parts, increasing replacement costs.

Method used

The upper and lower threaded blocks are designed with opposite thread directions. By turning the upper threaded block, the lower threaded block is driven to rotate synchronously, which realizes the disassembly and replacement of the shock-absorbing component. The connecting component includes a thin rod and a thick rod to ensure synchronous rotation. The rotating component is conveniently operated with a hex wrench.

Benefits of technology

It simplifies the disassembly and assembly process of the shock absorption components, reducing the difficulty and cost of replacing individual parts.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224378388U_ABST
    Figure CN224378388U_ABST
Patent Text Reader

Abstract

This utility model discloses a weft knitting device for knitted fabrics, relating to the field of weft knitting equipment. It includes a machine body, a jack mounted at the bottom of the machine body, and a base plate mounted at the bottom of the jack. Side plates are mounted on the sides of the machine body, and an upper threaded block is threadedly connected to a pre-reserved upper threaded groove inside the side plate. A lower threaded block is movably connected to the lower threaded block via a connecting assembly. The lower threaded block is threadedly connected to the pre-reserved lower threaded groove inside the base plate. This utility model allows the lower threaded block to rotate synchronously by rotating the upper threaded block. The threads on the outer rings of the upper and lower threaded blocks have opposite directions. Rotating the upper threaded block causes the lower threaded block to rotate synchronously. When the upper threaded block is rotated clockwise, the upper and lower threaded blocks move towards each other; conversely, when the upper threaded block is rotated counterclockwise, the upper and lower threaded blocks are matched and connected to the upper and lower threaded grooves respectively, enabling the disassembly and replacement of the shock-absorbing components.
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Description

Technical Field

[0001] This utility model relates to the field of weft knitting equipment, specifically to a weft knitting equipment for knitted fabrics. Background Technology

[0002] A weft knitting machine is a type of knitting equipment that weaves yarn along the cross direction of the fabric to create weft-knitted fabrics. Weft knitting machines can produce not only flat fabrics but also cylindrical fabric rolls, and can even be directly knitted into garments, garment pieces, and finished fabrics. This makes weft knitting machines highly efficient and popular in factories, making them indispensable in the fabric production process.

[0003] A Chinese patent authorization announcement number (CN219861833U) discloses a weft knitting machine, relating to the field of weft knitting machine technology. The machine includes a lifting assembly with a mounting base plate on top of which the weft knitting machine body is mounted. In operation, the hydraulic rod is activated, causing it to rise and move the soundproof ventilation cover upwards. During operation, the soundproof ventilation cover blocks machine noise. Combined with the sound absorption of the glass wool sound-absorbing panel, the machine noise is absorbed and blocked, almost preventing it from propagating into the working environment. Multiple shock-absorbing springs and dampers provide strong support and damping, reducing vibration-induced noise. Furthermore, when the mounting base plate is pressed downwards, the movable rod pushes two buffer springs towards the center, where the buffer springs provide additional shock absorption and cushioning.

[0004] The aforementioned weft knitting machine also has the following problems during use: After prolonged use, the elastic potential energy of the spring in the shock-absorbing component weakens, requiring the replacement of the shock-absorbing spring to ensure the effectiveness of the shock-absorbing component. The connection method between the shock-absorbing spring and the shock-absorbing component makes it inconvenient to replace individual parts in the shock-absorbing component, resulting in high replacement costs when individual parts in the shock-absorbing component are damaged.

[0005] Therefore, it is necessary to invent a weft knitting device for knitted fabrics to solve the above problems. Utility Model Content

[0006] The purpose of this utility model is to provide a weft knitting device for knitted fabrics to solve the problem mentioned in the background art that the connection between the shock-absorbing spring and the shock-absorbing assembly in the above-mentioned shock-absorbing assembly makes it inconvenient to replace individual parts in the shock-absorbing assembly, and thus leads to high replacement costs when individual parts in the shock-absorbing assembly are damaged.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a weft knitting device for knitted fabrics, comprising a machine body, a jack installed at the bottom of the machine body, a base plate installed at the bottom of the jack, a side plate installed on the side of the machine body, and an upper threaded block connected to the internal threaded groove of the side plate, and a lower threaded block movably connected to the lower threaded block via a connecting component, the lower threaded block being threadedly connected to the lower threaded groove of the base plate, a turning component provided inside the upper threaded block facilitating subsequent turning of the upper threaded block, a damper fixedly connected between the upper threaded block and the lower threaded block, and a shock-absorbing spring movably fitted on the outer ring of the damper, the upper and lower ends of the shock-absorbing spring being fixedly connected to the end walls of the upper threaded block and the lower threaded block.

[0008] Preferably, the outer rings of the upper and lower threaded blocks have opposite thread directions, and the upper and lower threaded blocks have the same thickness and the same number of thread turns. In this way, turning the upper threaded block drives the lower threaded block to rotate synchronously. When the upper threaded block is rotated clockwise, the upper and lower threaded blocks move towards each other. Conversely, when the upper threaded block is rotated counterclockwise, the upper and lower threaded blocks are matched and connected with the upper and lower threaded grooves, respectively.

[0009] Preferably, the connecting assembly includes a thin rod and a thick rod that are fixedly connected to the upper threaded block and the lower threaded block respectively, and the thin rod slides inside the vertical groove reserved inside the thick rod to ensure that the lower threaded block is rotated synchronously when the upper threaded block is turned.

[0010] Preferably, the connecting assembly further includes protrusions fixedly connected to the two side walls of the lower end of the thin rod, and the outer wall of the protrusions and the outer wall of the thin rod are attached to the inner wall of the vertical groove to achieve a sliding connection between the upper and lower parts. The movable thick rod and thin rod do not affect the movement of the upper threaded block and the lower threaded block.

[0011] Preferably, the turning assembly includes a hexagonal groove pre-set inside the upper threaded block, and a hexagonal plate is elastically connected inside the hexagonal groove by a common spring. The through-hole reserved inside the hexagonal plate is slidably connected to the upright fixedly connected to the inner wall of the hexagonal groove, which facilitates the use of a hexagonal wrench to match the hexagonal groove to turn the upper threaded block.

[0012] Preferably, the outer sidewall of the hexagonal plate and the inner sidewall of the hexagonal groove are attached to each other to achieve a sliding connection.

[0013] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0014] Rotating the upper threaded block causes the lower threaded block to rotate synchronously. The threads on the outer rings of the upper and lower threaded blocks have opposite directions. This way, rotating the upper threaded block drives the lower threaded block to rotate synchronously. When the upper threaded block is rotated clockwise, the upper and lower threaded blocks move towards each other. Conversely, when the upper threaded block is rotated counterclockwise, the upper and lower threaded blocks are matched and connected with the upper and lower threaded grooves respectively, enabling the disassembly and replacement of the shock-absorbing components. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0016] Figure 1 This is a perspective view of the overall structure of this utility model;

[0017] Figure 2 This is an exploded view of the overall structure of this utility model;

[0018] Figure 3 This is a three-dimensional view of the internal structure of the upper threaded block of this utility model (partially cut out).

[0019] Figure 4 This is a three-dimensional view of the internal structure of the thick rod (partially cut out) of this utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Body; 2. Base plate; 3. Jack; 4. Side plate; 5. Upper threaded block; 6. Lower threaded block; 7. Upper threaded groove; 8. Lower threaded groove; 9. Damper; 10. Shock-absorbing spring; 11. Connecting assembly; 111. Thin rod; 112. Thick rod; 113. Vertical groove; 114. Protrusion; 12. Turning assembly; 121. Hexagonal groove; 122. Hexagonal plate; 123. Vertical pole; 124. Ordinary spring. Detailed Implementation

[0022] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0023] This utility model provides, for example Figure 1-4The knitting fabric weft knitting equipment shown includes a machine body 1. A jack 3 is installed at the bottom of the machine body 1, and a base plate 2 is installed at the bottom of the jack 3. A side plate 4 is installed on the side of the machine body 1, and an upper threaded block 5 is threadedly connected to the upper threaded groove 7 reserved inside the side plate 4. A lower threaded block 6 is movably connected to the lower threaded block 5 through a connecting component 11. The lower threaded block 6 is threadedly connected to the lower threaded groove 8 reserved inside the base plate 2. A turning component 12 is set inside the upper threaded block 5 to facilitate subsequent turning of the upper threaded block 5. A damper 9 is fixedly connected between the upper threaded block 5 and the lower threaded block 6, and a shock-absorbing spring 10 is movably fitted on the outer ring of the damper 9. The upper and lower ends of the shock-absorbing spring 10 are fixedly connected to the end walls of the upper threaded block 5 and the lower threaded block 6. In this way, the damper 9 and the shock-absorbing spring 10 work together to make the machine body 1 more stable during use, thereby extending the service life of the machine body.

[0024] Rotating the upper threaded block 5 causes the lower threaded block 6 to rotate synchronously. The outer threads of the upper threaded block 5 and the lower threaded block 6 have opposite directions. In this way, rotating the upper threaded block 5 drives the lower threaded block 6 to rotate synchronously. When the upper threaded block 5 is rotated clockwise, the upper threaded block 5 and the lower threaded block 6 move towards each other. Conversely, when the upper threaded block 5 is rotated counterclockwise, the upper threaded block 5 and the lower threaded block 6 are matched and connected with the upper threaded groove 7 and the lower threaded groove 8 respectively, so as to realize the disassembly and replacement of the shock absorption component.

[0025] The threads on the outer rings of the upper threaded block 5 and the lower threaded block 6 are opposite in direction, and the upper threaded block 5 and the lower threaded block 6 have the same thickness and the same number of thread turns. Thus, turning the upper threaded block 5 will drive the lower threaded block 6 to rotate synchronously. When the upper threaded block 5 is rotated clockwise, the upper threaded block 5 and the lower threaded block 6 move towards each other. Conversely, when the upper threaded block 5 is rotated counterclockwise, the upper threaded block 5 and the lower threaded block 6 are matched and connected with the upper threaded groove 7 and the lower threaded groove 8, respectively.

[0026] The connecting assembly 11 includes a thin rod 111 and a thick rod 112 that are fixedly connected to the upper threaded block 5 and the lower threaded block 6 respectively. The thin rod 111 slides inside the vertical groove 113 reserved inside the thick rod 112 to ensure that the lower threaded block 6 rotates synchronously when the upper threaded block 5 is turned. The connecting assembly 11 also includes a protrusion 114 that is fixedly connected to the two side walls of the lower end of the thin rod 111. The outer wall of the protrusion 114 and the outer wall of the thin rod 111 are attached to the inner wall of the vertical groove 113 to achieve a sliding connection between the upper and lower parts.

[0027] When the upper threaded block 5 is rotated, causing the upper threaded block 5 and the lower threaded block 6 to rotate synchronously and move in position, the movable thick rod 112 and thin rod 111 do not affect the movement of the upper threaded block 5 and the lower threaded block 6.

[0028] The turning assembly 12 includes a hexagonal groove 121 pre-set inside the upper threaded block 5. A hexagonal plate 122 is elastically connected inside the hexagonal groove 121 by a common spring 124. The through-hole reserved inside the hexagonal plate 122 is slidably connected to the upright 123 fixedly connected to the inner wall of the hexagonal groove 121. The outer side wall of the hexagonal plate 122 and the inner side wall of the hexagonal groove 121 are attached and slidably connected. This facilitates the use of a hexagonal wrench to match the hexagonal groove 121 to turn the upper threaded block 5. In the initial state, under the elastic force of the common spring 124, the top wall of the hexagonal plate 122 is flush with the top wall of the upper threaded block 5, preventing impurities from falling into the hexagonal groove 121 and affecting the subsequent matching of the hexagonal wrench with the hexagonal groove 121. The hexagonal wrench on the market has a hexagonal slot reserved inside. In this way, the upright 123 is movably connected to the slot inside the hexagonal wrench, and the upright 123 does not affect the rotation of the hexagonal wrench.

[0029] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A weft knitting apparatus for a knitted fabric, comprising a machine body (1), characterized in that, A jack (3) is installed at the bottom of the body (1), and a base plate (2) is installed at the bottom of the jack (3). A side plate (4) is installed on the side of the body (1), and an upper threaded block (5) is connected to the internal thread of the upper threaded groove (7) reserved inside the side plate (4). A lower threaded block (6) is movably connected to the lower threaded block (5) through a connecting component (11). The lower threaded block (6) is threadedly connected to the lower threaded groove (8) reserved inside the base plate (2). A turning component (12) is set inside the upper threaded block (5) to facilitate the subsequent turning of the upper threaded block (5). A damper (9) is fixedly connected between the upper threaded block (5) and the lower threaded block (6). A shock-absorbing spring (10) is movably fitted on the outer ring of the damper (9), and the upper and lower ends of the shock-absorbing spring (10) are fixedly connected to the end walls of the upper threaded block (5) and the lower threaded block (6).

2. The weft knitting equipment for knitted fabrics according to claim 1, characterized in that, The outer rings of the upper threaded block (5) and the lower threaded block (6) have opposite thread directions, and the upper threaded block (5) and the lower threaded block (6) have the same thickness and the same number of thread turns.

3. The weft knitting equipment for knitted fabrics according to claim 2, characterized in that, The connecting assembly (11) includes a thin rod (111) and a thick rod (112) that are fixedly connected to the upper threaded block (5) and the lower threaded block (6) respectively, and the thin rod (111) slides inside the vertical groove (113) reserved inside the thick rod (112).

4. The weft knitting equipment for knitted fabrics according to claim 3, characterized in that, The connecting assembly (11) also includes a protrusion (114) fixedly connected to the two side walls of the lower end of the thin rod (111), and the outer wall of the protrusion (114) and the outer wall of the thin rod (111) are attached to the inner wall of the vertical groove (113) to achieve a sliding connection between the upper and lower parts.

5. The weft knitting equipment for knitted fabrics according to claim 3, characterized in that, The rotary assembly (12) includes a hexagonal groove (121) pre-set inside the upper threaded block (5), and a hexagonal plate (122) is elastically connected inside the hexagonal groove (121) by a common spring (124), and the through hole reserved inside the hexagonal plate (122) is slidably connected to the upright (123) fixedly connected to the inner wall of the hexagonal groove (121).

6. The weft knitting equipment for knitted fabrics according to claim 5, characterized in that, The outer wall of the hexagonal plate (122) is attached to the inner wall of the hexagonal groove (121) to achieve a sliding connection.