Flat knitting machine for the production of jumpers

Abstract

The utility model discloses a kind of knit horizontal machines of sweater production, including rack, the upper end of the rack is equipped with knitting assembly, the rear end of rack is equipped with creel, further including winding mechanism;Winding mechanism: it includes shaft, winding roller, conical barrel and limit frame, the right side inner wall of the rack is rotatably connected with shaft, the outer arc surface middle part of shaft is movably sleeved with winding roller, the both ends of winding roller are respectively matched with the installation of conical barrel, the included angle between the generatrix of two conical barrels and winding roller axis is five degrees, the left and right ends of shaft are all threadedly connected with limit frame, limit frame is all matched with the installation of conical barrel adjacent to inboard, this knit horizontal machine of sweater production can automatically adjust fabric position, effectively avoid sweater cloth edge to appear slack or accumulation phenomenon, make the sweater cloth of winding more regular, reduce the workload of subsequent finishing process, improve production efficiency, while ensure product quality.

Description

Technical Field

[0001] This utility model relates to the field of sweater production technology, specifically to a knitting flat knitting machine for sweater production. Background Technology

[0002] In the modern textile industry, sweaters are a common and popular clothing category. The development of their manufacturing technology is crucial to meeting market demand, improving production efficiency and product quality. As consumers continue to demand higher quality and more diverse styles of sweaters, the performance of sweater production equipment is also facing greater challenges. As a key piece of equipment in sweater production, the technical level of the flat knitting machine directly affects the production quality and efficiency of sweaters.

[0003] Currently, most knitting machines for sweater production on the market have a certain foundation in terms of structure and function. Most knitting machines have basic knitting components, enabling yarn knitting operations, and are equipped with yarn racks to hold yarn and provide raw materials for the knitting process. However, existing technologies still have some shortcomings. In the fabric take-up stage, ordinary take-up devices lack effective control over the fabric take-up position, which can easily lead to loosening or piling of the fabric edges during the take-up process. This not only affects the take-up quality of the fabric but may also cause problems in subsequent processing, such as uneven fabric unfolding, affecting the accuracy of cutting and sewing. Therefore, we propose a knitting machine for sweater production. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a knitting flat knitting machine for sweater production that can automatically adjust the position of the fabric, avoid loosening or piling at the edges of the sweater fabric, and make the rolled-up fabric more regular, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a knitting flat knitting machine for sweater production, including a frame, a knitting assembly at the upper end of the frame, a yarn rack at the rear end of the frame, and a take-up mechanism;

[0006] The winding mechanism includes a rotating shaft, a winding roller, conical barrels, and a limiting frame. The rotating shaft is rotatably connected to the inner right wall of the frame. The winding roller is movably fitted in the middle of the outer arc surface of the rotating shaft. Conical barrels are respectively installed at both ends of the winding roller. The included angle between the generatrix of the two conical barrels and the axis of the winding roller is five degrees. The left and right ends of the rotating shaft are threaded with limiting frames. The limiting frames are installed in conjunction with the adjacent conical barrels on the inner side. This mechanism can automatically adjust the position of the fabric, effectively preventing loosening or piling of the sweater fabric edges, making the wound sweater fabric more regular, reducing the workload of subsequent finishing processes, improving production efficiency, and ensuring product quality.

[0007] Furthermore, a control switch group is provided on the right side of the frame, and the input terminal of the control switch group is electrically connected to an external power supply for stable control.

[0008] Furthermore, the winding mechanism also includes connecting grooves and connecting blocks. The left and right sides of the winding roller are provided with symmetrically distributed connecting grooves, and the opposite inner sides of the two conical barrels are provided with symmetrically distributed connecting blocks. The connecting blocks are inserted into the horizontally adjacent connecting grooves for easy connection.

[0009] Furthermore, a motor is installed at the front end of the right side of the frame. The output shaft of the motor is fixedly connected to the center of the right end face of the rotating shaft. The input end of the motor is electrically connected to the output end of the control switch group for stable driving.

[0010] Furthermore, the knitting assembly consists of knitting needles. The upper end of the frame is provided with symmetrically distributed needle beds. An opening is formed in the portion of the upper end of the frame between the two needle beds. The middle of the needle beds is provided with evenly distributed needle grooves. Knitting needles are slidably connected inside the needle grooves. Each needle has a needle heel at its lower end. Guide grooves are formed on the front and rear inner walls of the upper end of the frame. A guide frame is slidably connected between two guide grooves. Semi-triangular guide grooves are formed on the front and rear inner walls of the guide frame. The semi-triangular guide grooves are designed to cooperate with adjacent needle heels to facilitate knitting.

[0011] Furthermore, a lead screw is rotatably connected between the left and right inner walls of the rear end of the frame. A strip-shaped opening is provided on the upper rear side wall of the frame, which is connected to the guide groove on the rear side. An adjustment plate is provided on the lower rear end of the guide frame. The rear end of the adjustment plate passes through the strip-shaped opening and is threadedly connected to the lead screw. A motor is installed on the rear end of the right side of the frame. The output shaft of the motor is fixedly connected to the center of the right end face of the lead screw. The input end of the motor is electrically connected to the output end of the control switch group for stable driving.

[0012] Furthermore, the bottom wall of the yarn frame is provided with evenly distributed yarn feeding columns, and the upper end of the yarn frame is provided with evenly distributed guide plates. Both the front and rear ends of the guide plates are provided with thread guide holes. Guide wheels are rotatably connected between the left and right inner walls of the front end of the guide plates. A thread feeding frame is slidably connected to the front end of the bottom wall of the yarn frame. The front end and lower end of the thread feeding frame are provided with thread holes. The lower end of the thread feeding frame is located between two needle beds. The thread feeding frame and the guide frame are fixedly connected by a connecting rod for feeding yarn.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This knitting flat knitting machine for producing sweaters has the following advantages:

[0014] In the take-up mechanism of this flat knitting machine, the angle between the conical barrel generatrix and the take-up roller axis is designed to be 5 degrees. When the sweater fabric is taken up, as the winding radius increases, the conical barrel will cause the sweater fabric to be subjected to a force towards the center. This force can automatically adjust the position of the fabric, effectively preventing the sweater fabric from becoming loose or piling up at the edges, making the taken-up sweater fabric more regular, reducing the workload of subsequent finishing processes, improving production efficiency, and ensuring product quality. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a partial planar structural diagram of the winding mechanism of this utility model;

[0017] Figure 3 This is a schematic diagram of a partial explosion of the winding mechanism of this utility model;

[0018] Figure 4 This is a partial structural schematic diagram of the knitting component of this utility model;

[0019] Figure 5 This is a top view of the structure of this utility model;

[0020] Figure 6 This is a schematic diagram of the rear end structure of this utility model;

[0021] Figure 7 This is an enlarged structural schematic diagram of point A of this utility model;

[0022] Figure 8 This is a partial structural schematic diagram of the wire feeder of this utility model.

[0023] In the diagram: 1. Frame, 2. Winding mechanism, 201. Rotary shaft, 202. Winding roller, 203. Connecting groove, 204. Conical barrel, 205. Connecting block, 206. Limiting frame, 3. Needle bed, 4. Needle groove, 5. Knitting needle, 51. Needle heel, 6. Guide slide, 7. Guide frame, 8. Motor, 9. Half-triangle guide groove, 10. Strip opening, 11. Adjusting plate, 12. Lead screw, 13. Yarn frame, 14. Yarn feeding column, 15. Guide plate, 16. Lead hole, 17. Guide wheel, 18. Control switch group, 19. Thread feeder, 20. Thread hole, 21. Motor. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-8This embodiment provides a technical solution: a knitting flat knitting machine for sweater production, including a frame 1. A control switch group 18 is provided on the right side of the frame 1, with its input terminal electrically connected to an external power source. A knitting assembly, consisting of knitting needles 5, is provided at the upper end of the frame 1. Symmetrically distributed needle beds 3 are provided at the upper end of the frame 1. An opening is formed in the portion of the upper end of the frame 1 between the two needle beds 3. Evenly distributed needle grooves 4 are formed in the middle of the needle beds 3. Knitting needles 5 are slidably connected inside each needle groove 4, and each needle 5 has a needle heel 51 at its lower end. Guide grooves 6 are formed on the front and rear inner walls of the upper end of the frame 1. A guide frame 7 is slidably connected between two guide grooves 6. Semi-triangular guide grooves 9 are formed on the front and rear inner walls of the guide frame 7. The semi-triangular guide grooves 9 are connected to adjacent... The needle heel 51 is designed to cooperate (when the guide frame 7 moves left and right, the needle heel 51 at the lower end of the adjacent knitting needle 5 will enter the corresponding semi-triangular guide groove 9, and with the change of the semi-triangular guide groove 9, the knitting needle 5 is forced to move up and down). A lead screw 12 is rotatably connected between the left and right inner walls of the rear end of the frame 1. A strip-shaped opening 10 is opened on the upper rear side wall of the frame 1, and the strip-shaped opening 10 is connected to the rear guide slide 6. An adjusting plate 11 is provided on the lower rear end of the guide frame 7. The rear end of the adjusting plate 11 passes through the strip-shaped opening 10 and is threadedly connected to the lead screw 12. A motor 8 is installed on the rear end of the right side of the frame 1. The output shaft of the motor 8 is fixedly connected to the center of the right end face of the lead screw 12. The input end of the motor 8 is electrically connected to the output end of the control switch group 18. The rear end of the frame 1 is provided with The yarn frame 13 has evenly distributed yarn-feeding columns 14 on its bottom wall and evenly distributed guide plates 15 on its upper end. Both ends of the guide plates 15 have thread-leading holes 16. Guide wheels 17 are rotatably connected between the left and right inner walls of the front end of the guide plates 15. A thread feeder 19 is slidably connected to the front end of the bottom wall of the yarn frame 13. The front and lower ends of the thread feeder 19 have thread holes 20. The lower end of the thread feeder 19 is located between two needle beds 3. The thread feeder 19 and the guide frame 7 are fixedly connected by a connecting rod. First, the yarn is placed on the yarn-feeding columns 14 of the yarn frame 13. The yarn passes sequentially through the thread-leading holes 16 at the rear and front ends of the guide plates 15, while simultaneously winding the yarn around the guide wheels 17, and then passing through the two thread holes 20 of the thread feeder 19. Finally, the yarn is... The yarn is fixed to the thread hole 20 at the lower end of the yarn feeder 19, so that the yarn is located between the two needle beds 3 to prepare for the knitting work. At this time, the external power supply is connected through the control switch group 18 to power the entire equipment. When the control switch group 18 is started, the motor 8 starts to work. The output shaft of the motor 8 drives the lead screw 12 to rotate. Under the thread engagement of the lead screw 12, the guide frame 7 will slide left and right in the guide groove 6. When the guide frame 7 moves, the needle heel 51 at the lower end of the knitting needle 5 will enter the semi-triangular guide groove 9 one by one. As the position of the semi-triangular guide groove 9 changes, the knitting needle 5 slides up and down in the needle groove 4, thereby realizing the knitting operation of the yarn and knitting the yarn into the shape of a sweater. The knitted sweater fabric falls from the opening, which is convenient for sweater production. It also includes a take-up mechanism 2.

[0026] The winding mechanism 2 includes a rotating shaft 201, a winding roller 202, a conical barrel 204, and a limiting frame 206. The rotating shaft 201 is rotatably connected to the inner right side of the frame 1. A motor 21 is installed at the front end of the right side of the frame 1. The output shaft of the motor 21 is fixedly connected to the center of the right end face of the rotating shaft 201. The input end of the motor 21 is electrically connected to the output end of the control switch group 18. The winding roller 202 is movably sleeved in the middle of the outer arc surface of the rotating shaft 201. The conical barrels 204 are respectively installed at both ends of the winding roller 202. The winding mechanism 2 also includes connecting grooves 203 and connecting blocks 205. The left and right sides of the winding roller 202 are provided with symmetrically distributed connecting grooves 203. The two conical barrels 204 are positioned opposite each other. Symmetrically distributed connecting blocks 205 are provided on the inner surface of each roll. Each connecting block 205 is inserted into a laterally adjacent connecting slot 203. The angle between the generatrix of the two conical barrels 204 and the axis of the winding roll 202 is five degrees. Limit frames 206 are threaded to both ends of the rotating shaft 201. The limit frames 206 are installed in conjunction with the adjacent inner conical barrels 204. Subsequently, the motor 21 starts under the control of the control switch group 18. Its output shaft drives the rotating shaft 201 to rotate, which in turn drives the winding roll 202 to rotate. The angle between the generatrix of the conical barrels 204 at both ends of the winding roll 202 and the axis of the winding roll 202 is five degrees. During the winding process, as the fabric continuously wraps around the winding roll 202, the winding radius gradually increases. Due to the presence of the conical cylinders 204 at both ends, the fabric experiences a component force towards the center during winding. As the winding radius r increases, the angle θ between the tangent direction at the contact point between the fabric and the body and the body axis gradually increases. According to mechanical analysis, this change in angle generates a component force F along the body axis towards the center, F = Tsinθ (where T is the tension on the fabric). As the winding radius further increases, θ increases, sinθ also increases, and the component force F increases accordingly, thus causing the fabric to continuously move towards the center of the roller. This component force towards the center allows the fabric to automatically adjust its position during winding, preventing slack or accumulation at the fabric edges. The worker can twist the left... Next, remove the left conical barrel 204, the take-up roller 202, and the right conical barrel 204 in sequence to inspect the take-up roller 202 and the conical barrel 204. After inspection, first put on the right conical barrel 204, then put on the take-up roller 202. At this time, the connecting groove 203 at the right end of the take-up roller 202 is inserted into the connecting block 205 of the right conical barrel 204. Then put on the left conical barrel 204. At this time, the connecting block 205 of the left conical barrel 204 is inserted into the connecting groove 203 at the left end of the take-up roller 202. Finally, rotate the two limit frames 206 to clamp the take-up roller 202 and the conical barrel 204 for inspection, which can prevent the fabric edge from becoming loose or piling up.

[0027] The working principle of the knitting flat knitting machine for sweater production provided by this utility model is as follows: First, the yarn is placed on the yarn feeding column 14 of the yarn frame 13. The yarn passes through the lead-in holes 16 at the rear and front ends of the guide plate 15 in sequence, and at the same time, the yarn is wound around the guide wheel 17, and then passes through the two thread holes 20 of the yarn feeder 19. Finally, the yarn is fixed to the thread hole 20 at the lower end of the yarn feeder 19, so that the yarn is located between the two needle beds 3, preparing for the knitting work. At this time, the external power supply is connected through the control switch group 18 to power the entire equipment. The control switch group 18 is started, and the motor 8 starts to work. The output shaft of the motor 8 drives the lead screw 12 to rotate. Under the threaded engagement of the lead screw 12, the guide... The guide frame 7 will slide left and right within the guide groove 6. As the guide frame 7 moves, the needle heels 51 at the lower end of the knitting needles 5 will enter the semi-triangular guide groove 9 one by one. As the position of the semi-triangular guide groove 9 changes, the knitting needles 5 slide up and down within the needle groove 4, thereby realizing the knitting operation of the yarn and knitting the yarn into the basic shape of a sweater. The knitted sweater fabric falls from the opening. Subsequently, the motor 21 starts under the control of the control switch group 18, and its output shaft drives the rotating shaft 201 to rotate, which in turn drives the take-up roller 202 to rotate. The angle between the generatrices of the conical barrels 204 at both ends of the take-up roller 202 and the axis of the take-up roller 202 is 5 degrees. During the take-up process, as the fabric is continuously wound around the take-up roller 202, the winding... As the winding radius gradually increases, due to the presence of the conical cylinders 204 at both ends, the fabric experiences a component force towards the center of the roll during the winding process. With the increase in winding radius r, the angle θ between the tangent direction at the contact point between the fabric and the roll body and the roll axis gradually increases. According to mechanical analysis, this change in angle generates a component force F along the roll axis towards the center, F = Tsinθ (where T is the tension on the fabric). As the winding radius further increases, θ increases, sinθ also increases, and the component force F increases accordingly, thus causing the fabric to continuously move towards the center of the roll. This component force towards the center allows the fabric to automatically adjust its position during the winding process, preventing slack or bunching at the fabric edges. To address the issue of accumulation, the worker can unscrew the left-side limit frame 206, then sequentially remove the left-side conical barrel 204, the winding roller 202, and the right-side conical barrel 204 for maintenance of the winding roller 202 and conical barrel 204. After maintenance, first, put on the right-side conical barrel 204, then put on the winding roller 202. At this time, the connecting groove 203 at the right end of the winding roller 202 is inserted into the connecting block 205 of the right-side conical barrel 204. Then, put on the left-side conical barrel 204. At this time, the connecting block 205 of the left-side conical barrel 204 is inserted into the connecting groove 203 at the left end of the winding roller 202. Finally, rotate the two limit frames 206 to clamp the winding roller 202 and conical barrel 204 for maintenance.

[0028] It is worth noting that the motor 8 disclosed in the above embodiments can be a stepper motor of the 20-42 series, and the motor 21 can be a small DC motor of 100-300W. The control switch group 18 is provided with control buttons that correspond one-to-one with the motor 8 and the motor 21 and are used to control their switching.

[0029] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A knitting flat knitting machine for producing sweaters, comprising a frame (1), wherein a knitting assembly is provided at the upper end of the frame (1), and a yarn frame (13) is provided at the rear end of the frame (1), characterized in that: It also includes a winding mechanism (2); The winding mechanism (2) includes a rotating shaft (201), a winding roller (202), a conical barrel (204), and a limiting frame (206). The rotating shaft (201) is rotatably connected to the inner wall of the right side of the frame (1). The winding roller (202) is movably sleeved in the middle of the outer arc surface of the rotating shaft (201). The conical barrel (204) is installed at both ends of the winding roller (202). The angle between the generatrix of the two conical barrels (204) and the axis of the winding roller (202) is five degrees. The left and right ends of the rotating shaft (201) are threadedly connected to the limiting frame (206). The limiting frame (206) is installed in cooperation with the conical barrel (204) on the inner side.

2. The knitting flat knitting machine for sweater production according to claim 1, characterized in that: The right side of the frame (1) is provided with a control switch group (18), and the input end of the control switch group (18) is electrically connected to an external power source.

3. The knitting flat knitting machine for sweater production according to claim 1, characterized in that: The winding mechanism (2) also includes a connecting groove (203) and a connecting block (205). The left and right sides of the winding roller (202) are provided with symmetrically distributed connecting grooves (203), and the inner sides of the two conical barrels (204) are provided with symmetrically distributed connecting blocks (205). The connecting blocks (205) are inserted into the horizontally adjacent connecting grooves (203).

4. A knitting flat knitting machine for sweater production according to claim 2, characterized in that: A motor (21) is installed on the front end of the right side of the frame (1). The output shaft of the motor (21) is fixedly connected to the center of the right end face of the rotating shaft (201). The input end of the motor (21) is electrically connected to the output end of the control switch group (18).

5. A knitting flat knitting machine for sweater production according to claim 2, characterized in that: The knitting assembly is a knitting needle (5). The upper end of the frame (1) is provided with symmetrically distributed needle beds (3). The upper end of the frame (1) is opened in the part between the two needle beds (3). The middle part of the needle bed (3) is provided with evenly distributed needle grooves (4). Knitting needles (5) are slidably connected inside the needle grooves (4). The lower end of each knitting needle (5) is provided with a needle heel (51). The upper end of the frame (1) is provided with guide grooves (6) on the front and rear inner walls. A guide frame (7) is slidably connected between the two guide grooves (6). The front and rear inner walls of the guide frame (7) are provided with semi-triangular guide grooves (9). The semi-triangular guide grooves (9) are all matched with the adjacent needle heels (51).

6. A knitting flat knitting machine for sweater production according to claim 5, characterized in that: A lead screw (12) is rotatably connected between the left and right inner walls of the rear end of the frame (1). A strip-shaped opening (10) is opened on the upper rear side wall of the frame (1). The strip-shaped opening (10) is connected to the guide groove (6) on the rear side. An adjustment plate (11) is provided on the lower rear side of the guide frame (7). The rear end of the adjustment plate (11) passes through the strip-shaped opening (10) and is threadedly connected to the lead screw (12). A motor (8) is installed on the rear end of the right side of the frame (1). The output shaft of the motor (8) is fixedly connected to the center of the right end face of the lead screw (12). The input end of the motor (8) is electrically connected to the output end of the control switch group (18).

7. A knitting flat knitting machine for sweater production according to claim 5, characterized in that: The bottom wall of the yarn frame (13) is provided with evenly distributed yarn feeding columns (14), and the upper end of the yarn frame (13) is provided with evenly distributed guide plates (15). Both the front and rear ends of the guide plates (15) are provided with lead wire holes (16). The left and right inner walls of the front end of the guide plates (15) are rotatably connected with guide wheels (17). The front end of the bottom wall of the yarn frame (13) is slidably connected with a wire feeder (19). The front end and the lower end of the wire feeder (19) are provided with wire holes (20). The lower end of the wire feeder (19) is located between two needle beds (3). The wire feeder (19) and the guide frame (7) are fixedly connected by a connecting rod.

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