A moving tangent device for computerized flat knitting machines

Abstract

This invention discloses a moving thread-cutting device for a computerized flat knitting machine, relating to the field of flat knitting machine technology. The key technical features are: a guide rail, a sliding block slidably connected to the guide rail, a driving component for driving the sliding block on the guide rail, a connecting block slidably connected vertically inside the sliding block, a thread-cutting blade on the connecting block, the thread-cutting blade including a blade body and a ring-shaped blade head at the top of the blade body, a driving component for driving the connecting block, and a thread-pressing component on the sliding block. The purpose of this invention is to provide a moving thread-cutting device for a computerized flat knitting machine.

Description

Technical Field

[0001] This invention relates to the field of flat knitting machine technology, and more specifically, to a moving cutting device for a computerized flat knitting machine. Background Technology

[0002] A computerized flat knitting machine is a double-needle plate needle weft knitting machine. It knits yarn into fabric by the rhythmic up-and-down movement of needles within the needle grooves of the needle plate, and the action of the needle hooks and the needle latch. Computerized flat knitting machines eliminate the need for manual knitting, making them more efficient than traditional hand-cranked machines, and thus their applications are becoming increasingly widespread. Common types of computerized flat knitting machines include glove knitting machines, sock knitting machines, collar knitting machines, ribbon knitting machines, and sweater knitting machines.

[0003] When using a computerized flat knitting machine, a moving scissor device is often used to cut the yarn. During the cutting process, the cutting part of the scissors needs to open, and the opening range is relatively large. When it moves on the flat knitting machine, it is easy to collide with other parts, causing damage to the parts.

[0004] Therefore, a new technical solution is urgently needed to solve the above-mentioned technical problems. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a moving cutting device for computerized flat knitting machines.

[0006] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a moving cutting device for a computerized flat knitting machine, comprising a guide rail, a sliding block slidably connected on the guide rail, a driving component for driving the sliding block provided on the guide rail, a connecting block slidably connected in the vertical direction inside the sliding block, a cutting blade provided on the connecting block, the cutting blade comprising a blade body and a blade head in a circular shape provided on the top of the blade body, and a driving component for driving the connecting block, and a pressing component provided on the sliding block.

[0007] By adopting the above technical solution, during production, the yarn passes through one side of the cutting blade. When the yarn needs to be cut, the yarn is pressed by the pressing assembly, and then the driving component drives the connecting block to move downward, thereby driving the cutting blade to move downward, so that the yarn enters the cutting head and is cut. Thus, while cutting the yarn, the cutting blade only moves in the vertical direction and will not collide with the flat knitting machine.

[0008] The invention is further configured such that: the sliding block has a groove extending through its top, the connecting block is slidably connected to the groove, and the driving component is a cylinder disposed at the bottom of the groove.

[0009] The present invention is further configured such that: vertical limiting grooves are provided on both sides of the sliding groove, and limiting rods that are slidably connected to the limiting grooves are provided on both sides of the blade of the tangent.

[0010] The invention is further configured such that: the connecting block has a groove extending through its top, and the bottom sides of the groove have arc-shaped grooves; the limiting rod is cylindrical; and it also includes a deflection assembly for driving the tangent to deflect around the limiting rod.

[0011] The present invention is further configured such that: the deflection assembly includes an abutment plate disposed on the blade located on the other side of the blade head, the outer side wall of the abutment plate being arc-shaped, and also includes an abutment rod disposed horizontally within the slide groove, the abutment rod being located directly below the abutment plate.

[0012] The present invention is further configured such that: the wire pressing assembly includes a fixed plate fixedly connected to the surface of the sliding block on one side of the cutter head; the top of the fixed plate is provided with a cutting groove; side rods are slidably connected to both sides of the fixed plate; a top rod is provided on the top of the side rods located on the upper surface of the fixed plate; wire passing holes are provided on the top of the two side rods; and electric push cylinders for driving the side rods are respectively provided on the surface of the sliding block below the side rods.

[0013] The invention is further configured such that: a support rod is fixedly connected to the top of the sliding block on the other side of the fixed plate, and a tension spring is provided between the top of the support rod and the tangent.

[0014] The invention is further configured such that: the top of the sliding block is provided with an arc-shaped groove, and the lower surface of the top rod is an arc surface that fits into the groove.

[0015] The present invention is further configured such that: the driving assembly includes a threaded rod that passes through and is threadedly connected to the sliding block, and also includes a motor for driving the threaded rod.

[0016] The present invention has the following beneficial effects: During production, the yarn passes through one side of the cutting blade. When the yarn needs to be cut, the yarn is pressed by the pressing assembly, and the connecting block is driven downward by the driving component, thereby driving the cutting blade downward so that the yarn enters the cutting head and is cut. Thus, while cutting the yarn, the cutting blade only moves in the vertical direction and will not collide with the flat knitting machine. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of this embodiment;

[0018] Figure 2 This is a partial structural diagram of this embodiment;

[0019] Figure 3 This is a schematic diagram of the tangent blade in this embodiment;

[0020] Figure 4 This is a cross-sectional structural diagram of the sliding block in this embodiment;

[0021] Figure 5 This is a cross-sectional structural diagram of the connecting block in this embodiment;

[0022] Figure 6 This is a schematic diagram of the wire pressing assembly in this embodiment.

[0023] Figure Descriptions: 1. Guide rail; 2. Sliding block; 3. Connecting block; 4. Cutting knife; 5. Blade body; 6. Cutting head; 7. Blade edge; 8. Driving component; 9. Limiting groove; 10. Limiting rod; 11. Groove; 12. Arc groove; 13. Rotating rod; 14. Abutment plate; 15. Abutment rod; 16. Support rod; 17. Tension spring; 18. Fixing plate; 19. Cutting groove; 20. Side rod; 21. Top rod; 22. Wire hole; 23. Electric push cylinder; 24. Threaded rod; 25. Motor. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings.

[0025] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "bottom surface," "top surface," "inner," and "outer" refer to directions toward or away from the geometric center of a specific part, respectively.

[0026] As shown in the figure, a moving cutting device for a computerized flat knitting machine includes a guide rail 1, a sliding block 2 slidably connected to the guide rail 1, a driving component for driving the sliding block 2 on the guide rail 1, a connecting block 3 slidably connected to the sliding block 2 in the vertical direction, a cutting blade 4 on the connecting block 3, the cutting blade 4 including a blade body 5 and a blade head 6 in the shape of an annulus on the top of the blade body 5, the blade head 6 having a cutting edge 7 along its inner arc surface, and a driving component 8 for driving the connecting block 3 to move in the vertical direction, and a pressing component on the sliding block 2.

[0027] During production, the yarn passes through one side of the cutting blade 4. When the yarn needs to be cut, the yarn is pressed by the pressing assembly, and the driving component 8 drives the connecting block 3 to move downward, thereby driving the cutting blade 4 to move downward, so that the yarn enters the cutter head 6 and is cut. Thus, while cutting the yarn, the cutting blade 4 only moves in the vertical direction and will not collide with the flat knitting machine.

[0028] The sliding block 2 has a groove extending through its top. The connecting block 3 is slidably connected in the groove. The driving component 8 is a cylinder located at the bottom of the groove. The cylinder drives the connecting block 3 to slide along the groove, thereby driving the cutting blade 4 to move in the vertical direction.

[0029] Vertical limiting grooves 9 are provided on both sides of the chute, and limiting rods 10 are provided on both sides of the blade 5 of the cutting blade 4, which are slidably connected in the limiting grooves 9. By setting the limiting grooves 9 and the limiting rods 10, the stability of the cutting blade 4 during cutting is improved.

[0030] The connecting block 3 has a groove 11 extending through its top. The blade 5 is disposed in the groove 11. Arc-shaped grooves 12 are formed on both sides of the bottom of the groove 11. A rotating rod 13 is slidably connected to the arc-shaped groove 12 at the bottom of the blade 5. The limiting rod 10 is cylindrical. The device also includes a deflection assembly for driving the cutting blade 4 to deflect around the limiting rod 10. The deflection assembly includes an abutment plate 14 disposed on the other side of the blade head 6 of the blade 5. The outer wall of the abutment plate 14 is arc-shaped. The device also includes an abutment rod 15 disposed horizontally in the slide groove. The abutment rod 15 is located directly below the abutment plate 14. During the cutting operation, the deflection assembly causes the cutting blade 4 to descend, and the abutment rod 15 abuts against the abutment plate 14. Under the action of the arc-shaped side of the abutment plate 14, the cutting head 6 of the cutting blade 4 is driven to deflect towards the yarn, so that the yarn can enter the cutting head 6 for cutting.

[0031] The top of the sliding block 2 is fixedly connected to the support rod 16 on the other side of the fixed plate. A tension spring 17 is provided between the top of the support rod 16 and the cutting blade 4. After the cutting work is performed, the tension spring 17 is stretched. Under the action of the tension spring 17, the abutment rod 15 is always pressed against the abutment plate 14, so that the cutting blade can reciprocate during the cutting work, thereby improving the cutting effect.

[0032] The yarn clamping assembly includes a fixed plate 18 fixedly connected to the surface of the sliding block 2 on one side of the cutter head 6. The top of the fixed plate 18 has a cutting groove 19. Side rods 20 are slidably connected to both sides of the fixed plate 18. A top rod 21 is located on the upper surface of the fixed plate 18 at the top of each side rod 20. Threading holes 22 are provided at the top of the two side rods 20. Electric push cylinders 23 for driving the side rods 20 are respectively located below the side rods 20 on the surface of the sliding block 2. An arc-shaped groove 11 is provided at the top of the sliding block 2. The lower surface of the top rod 21 is an arc surface that fits into the groove 11. The electric push cylinders 23 drive the side rods 20 and top rods 21 downwards to clamp the yarn, ensuring smooth cutting of the yarn.

[0033] The drive assembly includes a threaded rod 24 that passes through and is threadedly connected to the sliding block 2, and a motor 25 for driving the threaded rod 24. The motor 25 drives the threaded rod 24 to rotate, thereby controlling the sliding block 2 to slide on the guide rail 1.

[0034] The specific embodiments are merely illustrative of the present invention and are not intended to limit the invention. After reading this specification, those skilled in the art can make modifications to these embodiments without contributing any inventive step, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A moving cutting device for a computerized flat knitting machine, characterized in that: The device includes a guide rail, a sliding block slidably connected to the guide rail, a drive assembly for driving the sliding block on the guide rail, a connecting block slidably connected in the vertical direction inside the sliding block, a wire cutter on the connecting block, the wire cutter including a blade body and a ring-shaped blade head at the top of the blade body, and a drive component for driving the connecting block. The sliding block also has a wire pressing assembly, and the sliding block has a groove penetrating its top. The connecting block is slidably connected to the groove, and the drive component is a cylinder located at the bottom of the groove. The two side walls of the chute are provided with vertical limiting grooves, and the two sides of the tangent blade are provided with limiting rods that are slidably connected in the limiting grooves. The connecting block has a groove extending through its top, and arc-shaped grooves are formed on both sides of the bottom of the groove. A rotating rod is provided at the bottom of the blade and can be slidably connected in the arc-shaped groove. The limiting rod is cylindrical and also includes a deflection component for driving the tangent to deflect around the limiting rod. The deflection assembly includes an abutment plate disposed on the blade on the other side of the blade head, the outer wall of the abutment plate being arc-shaped, and an abutment rod horizontally disposed in the slide groove, the abutment rod being located directly below the abutment plate; The wire pressing assembly includes a fixed plate fixedly connected to the surface of the sliding block on one side of the cutter head. The top of the fixed plate has a cutting groove. Side rods are slidably connected to both sides of the fixed plate. The top of the side rods is provided with a top rod located on the upper surface of the fixed plate. The top of the two side rods is provided with a wire-passing hole. The surface of the sliding block below the side rods is provided with electric push cylinders for driving the side rods.

2. The moving cutting device for a computerized flat knitting machine according to claim 1, characterized in that: The top of the sliding block is fixedly connected to a support rod on the other side of the fixed plate, and a tension spring is provided between the top of the support rod and the tangent.

3. The moving cutting device for a computerized flat knitting machine according to claim 2, characterized in that: The top of the sliding block has an arc-shaped groove, and the lower surface of the top rod is an arc surface that fits into the groove.

4. The moving cutting device for a computerized flat knitting machine according to claim 1, characterized in that: The drive assembly includes a threaded rod that passes through and is threadedly connected to the sliding block, and also includes a motor for driving the threaded rod.

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