Three-needle hook structure and cut loop pile knitting machine
By setting three needle hooks in the three-needle hook structure and controlling the heel of the needle-lifting plate to run on different triangular tracks, the problem of equipment damage due to impact in the prior art is solved, and continuous operation of the three-layer plush knitting machine is realized.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QUANZHOU QUANNENG INTELLIGENT CONTROL MASCH RES INST CO LTD
- Filing Date
- 2025-04-27
- Publication Date
- 2026-05-08
AI Technical Summary
The existing three-layer plush knitting machine has a non-connected third triangular track between the second and fourth triangular tracks. This may cause errors in the jacquard system or excessive yarn fuzz during the knitting process. When the hook needle heel descends to the starting point of the third triangular track, it may collide with other tracks, causing equipment damage.
It adopts a three-needle hook structure, with three hooks on the hook head. Combined with the heel of the needle plate, it runs on different triangular tracks. The needle selector controls the heel to enter or leave the channel. The third triangular track is eliminated to ensure that the knitting needle does not encounter obstacles at any position, thus achieving continuous operation.
This avoids the impact of the hook heel, ensuring continuous operation of the equipment and improving its reliability and stability.
Smart Images
Figure CN224212904U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of textile machinery, and in particular to a three-needle hook structure and a loop-cutting knitting machine. Background Technology
[0002] The descriptions in this section provide background information related to this disclosure only and do not constitute prior art. Related art three-layer plush knitting machines use single-layer crochet needles, controlling the interaction between the heel of the connected needle plate and the cam mechanism to knit multi-layer plush fabric. See also Figure 4 and Figure 5 Its working principle is as follows: When the crochet hook 1, which needs to be knitted with plush, is selected, the heel 21 of the needle plate 2, under the action of the first triangular track 31 of the triangular device 3, pushes the crochet hook 1 upward, so that the hook 12 of the crochet hook 1 moves upward to the yarn feeding position of the yarn feeding nozzle. As the cylinder 4 rotates, under the action of the second triangular track 32, it begins to descend and hook the yarn. At this time, the heel 11 of the crochet hook 1 and the heel 21 of the needle plate 2 are closely attached to the corresponding triangular track. The length of the second triangular track 32 is shorter than the length of the fourth triangular track 34. When short plush needs to be knitted, the jacquard plate 6, under the action of the needle selector 5, presses the heel 21 of the needle plate 2, which needs to be knitted with short plush, into the slot 41 of the cylinder 4, so that it is separated from the descending triangular track. At this time, the heel 11 of the crochet hook 1 descends with the second triangular track 32 to the lower stop point of the second triangular track 32 and then stops descending. At this time, the plush length knitted by the crochet hook 1 is short.
[0003] When knitting medium-pile plush, the crochet hook 1 and the needle plate 2 descend simultaneously along the second triangular track 32 and the fourth triangular track 34. When the travel exceeds the lower stop point of the second triangular track 32, the heel 11 of the crochet hook 1 disengages from the second triangular track 32. At this time, the crochet hook 1 continues to descend under the drive of the needle plate 2. When it descends to the position of the third triangular track 33, the jacquard plate 6, under the action of the needle selector 5, presses the heel 21 of the needle plate 2 into the plate groove 41, causing the heel 21 of the needle plate 2 to disengage from the fourth triangular track 34. At this time, the crochet hook 1 and the needle plate 2 stop at the position of the third triangular track 33 and no longer descend. At this time, the pile length knitted by the crochet hook 1 is medium-pile.
[0004] When knitting long pile, the heel 21 of the needle plate 2, under the action of the fourth triangular track 34, carries the hook 1 down to the lower stop of the fourth triangular track 34. At this time, the pile knitted by the hook 1 is long pile. As the cylinder 4 rotates, the next yarn feeding knitting action begins.
[0005] In the process of implementing the technical solution of the embodiments of this application, the inventors of this application discovered that the above-mentioned technology has at least the following technical problems: A third triangular track is set between the second and fourth triangular tracks. This third triangular track is not continuous and has a starting point. During the knitting process, there is a certain probability of the jacquard system malfunctioning or excessive yarn lint accumulating on the triangular tracks. When the heel of the hook needle descends to the starting point of the third triangular track, the needle pusher plate disengages from the fourth triangular track and no longer drives the hook needle downwards. As the cylinder rotates, the heel of the hook needle 1 will collide with the starting point of the third triangular track, causing the heel 11 of the hook needle to break, resulting in equipment damage and forcing the equipment to stop operating. Summary of the Invention
[0006] In view of this, this application provides a three-needle hook structure and a loop knitting machine, which can avoid the occurrence of the hook needle heel hitting the hook and ensure the continuous operation of the equipment.
[0007] To achieve the above objectives, this application employs the following technical solution:
[0008] A three-needle hook structure is characterized by comprising a triangular device, a knitting needle assembly, and a needle selector; the triangular device has a first channel and a second channel located above the first channel; the knitting needle assembly includes a hook needle and a needle guide plate, the hook needle having a needle heel capable of moving in the second channel, the needle guide plate having a plate heel capable of moving in the first channel, the lower end of the hook needle being hooked to the upper end of the needle guide plate and capable of relative rotation; the needle selector is used to push the plate heel of the needle guide plate into or out of the first channel;
[0009] The crochet hook has three hooks arranged from top to bottom: a first hook, a second hook, and a third hook. A first triangular track and a fourth triangular track are arranged sequentially along the forward direction within the first channel. The first triangular track gradually slopes upwards along the forward direction, and the fourth triangular track gradually slopes downwards along the forward direction. The upper ends of the first and fourth triangular tracks are connected. A second triangular track is arranged in the second channel at a position corresponding to the fourth triangular track. The second and fourth triangular tracks are parallel and of the same length.
[0010] The first triangular track has three steps arranged from top to bottom: a first step, a second step, and a third step. When the heel of the needle plate moves to the first step, the heel and the needle heel continue to move forward and descend along the fourth and second triangular tracks respectively, and the third needle hook hooks the yarn for long-pile knitting. When the heel of the needle plate moves to the second step, and the needle selector pushes the heel away from the first triangular track, the needle heel continues to move forward and descends along the second triangular track, and the second needle hook hooks the yarn for medium-pile knitting. When the heel of the needle plate moves to the third step, and the needle selector pushes the heel away from the first triangular track, the needle heel continues to move forward and descends along the second triangular track, and the first needle hook hooks the yarn for short-pile knitting.
[0011] The aforementioned three-needle hook structure eliminates the third angle track in the triangular device and provides three hooks at the needle tip. When the heel of the needle-lifting plate reaches the first step, the heel and the needle heel descend along the fourth and second triangular tracks respectively, and the third hook hooks the yarn for long-pile knitting. When the heel of the needle-lifting plate reaches the second step, the needle selector pushes the heel away from the first triangular track, and the needle heel descends along the second triangular track, where the second hook hooks the yarn for medium-pile knitting. When the heel of the needle-lifting plate reaches the third step, the needle selector pushes the heel away from the first triangular track, and the needle heel descends along the second triangular track, where the first hook hooks the yarn for short-pile knitting. The length of the pile is determined by the different hook positions, so the knitting needle will not encounter obstacles no matter where it is, thus preventing collisions with the hook heel and ensuring continuous operation of the equipment.
[0012] This application also provides a cut loop pile knitting machine with the above-mentioned three-needle hook structure, characterized in that: it further includes a frame and a cylinder, the cylinder is mounted on the frame and can rotate around the central axis of the frame, the cylinder wall is provided with a vertically extending slot, the knitting needle assembly is installed in the slot and rotates with the cylinder, the triangular device is fixedly mounted on the frame and maintains a gap with the outer circle of the cylinder; the knitting needle assembly further includes a jacquard piece, the lower end of the jacquard piece is provided with a lower fulcrum rotatably connected to the cylinder, the upper end of the jacquard piece is provided with two clamping arms, the lower end of the needle-lifting piece is movably inserted between the two clamping arms, so that when the jacquard piece rotates around the lower fulcrum, the two clamping arms can drive the needle-lifting piece to rotate around the hooking point with the hook needle, thereby driving the heel into or out of the first channel, and the needle selector is fixedly mounted on the frame for driving the jacquard piece to rotate around the lower fulcrum.
[0013] In some embodiments, the second channel is provided with a fifth triangular track at a position corresponding to the first triangular track. Both the fifth and second triangular tracks are the upper walls of the second channel, and there is a hollow section between the fifth and second triangular tracks.
[0014] As can be seen from the above technical solution, this application has at least the following advantages and positive effects:
[0015] This application discloses a three-needle hook structure and a loop knitting machine, which eliminates the third corner track in the triangular device and sets three hooks at the needle head. The length of the pile is determined by the different hook positions, so the knitting needle will not encounter obstacles no matter where it goes, and there will be no situation of hitting the hook needle heel, thus ensuring the continuous operation of the equipment. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of an embodiment of this application;
[0017] Figure 2 This is a schematic diagram of the triangular device, hook, and needle plate in the embodiments of this application;
[0018] Figure 3 This is a schematic diagram of the knitting needle assembly in an embodiment of this application;
[0019] Figure 4 This is a schematic diagram of the structure of a cut loop pile knitting machine in related technologies;
[0020] Figure 5 This is a schematic diagram of the structure of the triangular device, hook, and needle plate in the related technology.
[0021] Labeling Explanation: 1. Crochet hook; 11. Heel; 12. Hook; 121. First hook; 122. Second hook; 123. Third hook; 2. Needle rest; 21. Heel; 3. Triangle device; 31. First triangle track; 311. First step; 312. Second step; 313. Third step; 32. Second triangle track; 33. Third triangle track; 34. Fourth triangle track; 35. Fifth triangle track; 36. Hollow section; 4. Needle barrel; 41. Plate groove; 5. Needle selector; 6. Jacquard plate; 61. Lower fulcrum; 62. Clamping arm. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of this application clearer, the application will be described in further detail below with reference to the accompanying drawings. The terminology used in the embodiments section of this application is only for explaining specific embodiments and is not intended to limit the application.
[0023] See Figures 1 to 3 This application provides a cut loop pile knitting machine, including a triangular device 3, a needle assembly, a needle selector 5, a frame and a cylinder 4. The cylinder 4 is mounted on the frame and can rotate around the central axis of the frame. A vertically extending slot 41 is provided on the cylinder wall of the cylinder 4. The needle assembly is installed in the slot 41 and rotates with the cylinder 4. The triangular device is fixedly mounted on the frame and maintains a gap with the outer circle of the cylinder 4.
[0024] The triangular device 3 has a first channel and a second channel located above the first channel; the knitting needle assembly includes a hook needle 1 and a needle plate 2, the hook needle 1 has a needle heel 11 that can travel in the second channel, the needle plate 2 has a plate heel 21 that can travel in the first channel, the lower end of the hook needle 1 is hooked to the upper end of the needle plate 2 and can rotate relative to each other; the needle selector 5 is used to push the plate heel 21 of the needle plate 2 into or out of the first channel;
[0025] The crochet hook 1 has three hooks arranged from top to bottom: a first hook 121, a second hook 122, and a third hook 123. In the first channel, a first triangular track 31 and a fourth triangular track 34 are arranged sequentially along the forward direction. The first triangular track 31 gradually slopes upwards along the forward direction, while the fourth triangular track 34 gradually slopes downwards along the forward direction. The upper end of the first triangular track 31 is connected to the upper end of the fourth triangular track 34. In the second channel, a second triangular track 32 is arranged at a position corresponding to the fourth triangular track 34. The second triangular track 32 is parallel to the fourth triangular track 34 and both have the same length.
[0026] The first triangular track 31 has three steps arranged from top to bottom: a first step 311, a second step 312, and a third step 313. When the heel 21 of the needle plate 2 moves to the first step 311, the heel 21 and the needle heel 11 continue to move forward and descend along the fourth triangular track 34 and the second triangular track 32 respectively. The third needle hook 123 hooks the yarn for long-pile knitting. When the heel 21 of the needle plate 2 moves to the second step 312, and the needle selector 5 pushes the heel 21 away from the first triangular track 31, the needle heel 11 continues to move forward and descends along the second triangular track 32. The second needle hook 122 hooks the yarn for medium-pile knitting. When the heel 21 of the needle plate 2 moves to the third step 313, and the needle selector 5 pushes the heel 21 away from the first triangular track 31, the needle heel 11 continues to move forward and descends along the second triangular track 32. The first needle hook 121 hooks the yarn for short-pile knitting.
[0027] The knitting needle assembly also includes a jacquard piece 6. The lower end of the jacquard piece 6 is rotatably connected to the needle cylinder 4, and the upper end of the jacquard piece 6 has two clamping arms 62. The lower end of the needle-lifting piece 2 is movably inserted between the two clamping arms 62. Thus, when the jacquard piece 6 rotates around the lower fulcrum 61, the two clamping arms 62 drive the needle-lifting piece 2 to rotate around the hook point with the hook 1, thereby causing the heel 21 to enter or disengage from the first channel. The needle selector 5 is fixedly mounted on the frame to drive the jacquard piece 6 to rotate around the lower fulcrum 61. Specifically, the needle selector 5 can swing up and down, thereby pushing the jacquard teeth of the jacquard piece 6 to rotate the jacquard piece 6 around the lower fulcrum 61.
[0028] The second channel has a fifth triangular track 35 at a position corresponding to the first triangular track 31. Both the fifth triangular track 35 and the second triangular track 32 are the upper walls of the second channel, and the space between the fifth triangular track 35 and the second triangular track 32 is a hollow section 36.
[0029] The following is a brief description of the working process and usage method of a three-needle hook structure according to the above embodiment:
[0030] During the knitting process, the cylinder 4 rotates around the center, simultaneously driving the hook 1, the needle plate 2, and the jacquard plate 6 in the slot 41 to move in a circular motion. When long-pile knitting is required, the needle selector 5 pushes the lower fulcrum 61 of the jacquard plate 6 to move and rotate away from the opening of the slot 41. Under the action of the jacquard plate 6, the lower end of the needle plate 2 rotates around its hook joint in the direction of extending out of the slot 41. The heel 21 of the needle plate 2 enters the first triangular track 31. The heel 21 moves upward along the first triangular track 31 and pushes the hook 1 upward. When the heel 21 moves to the first step 311, the third hook 123 of the hook 1 moves upward to the yarn feeding position of the yarn feeding nozzle. As the cylinder 4 rotates, the heel 21 and the needle heel 11 move downward along the fourth triangular track 34 and the second triangular track 32, respectively. The third hook 123 hooks into the yarn and performs long-pile knitting.
[0031] When medium-weight knitting is required, the heel 21 of the needle plate 2, under the action of the first triangular track 31, pushes the hook 1 upward. The heel 21 moves to the second step 312, causing the second hook 122 of the hook 1 to move upward to the yarn feeding position of the yarn feeding nozzle. Under the action of the needle selector 5, the heel 21 of the needle plate 2 is pressed into the slot 41, causing the heel 21 of the needle plate 2 to disengage from the first triangular track 31. The hook 1 no longer moves upward. As the cylinder 4 rotates, the heel 11 of the hook 1 moves downward along the second triangular track 32. The hook 1 moves downward, and the second hook 122 hooks into the yarn to perform medium-weight knitting.
[0032] When short-hair knitting is required, the heel 21 of the needle plate 2, under the action of the first triangular track 31, pushes the hook 1 upward. The heel 21 moves to the third step 313, so that the first hook 121 of the hook 1 moves up to the yarn feeding position of the yarn feeding nozzle. Under the action of the needle selector 5, the heel 21 of the needle plate 2 is pressed into the slot 41, so that the heel 21 of the needle plate 2 is disengaged from the first triangular track 31. The hook 1 no longer moves up. As the cylinder 4 rotates, the heel 11 of the hook 1 moves down along the second triangular track 32. The hook 1 moves down, and the first hook 121 hooks into the yarn to carry out short-hair knitting.
[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of this application, and are not intended to limit them; although the embodiments of this application have been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.
Claims
1. A three-needle hook structure, characterized in that: The device includes a cam device (3), a needle assembly, and a needle selector (5); the cam device (3) has a first channel and a second channel located above the first channel; the needle assembly includes a hook (1) and a needle plate (2), the hook (1) has a needle heel (11) that can move in the second channel, and the needle plate (2) has a plate heel (21) that can move in the first channel, the lower end of the hook (1) is hooked to the upper end of the needle plate (2) and can rotate relative to each other; the needle selector (5) is used to push the plate heel (21) of the needle plate (2) into or out of the first channel; The crochet hook (1) has three hooks arranged from top to bottom: a first hook (121), a second hook (122), and a third hook (123). In the first channel, a first triangular track (31) and a fourth triangular track (34) are arranged in sequence along the forward direction. The first triangular track (31) gradually tilts upward along the forward direction, and the fourth triangular track (34) gradually tilts downward along the forward direction. The upper end of the first triangular track (31) is connected to the upper end of the fourth triangular track (34). In the second channel, a second triangular track (32) is arranged at a position corresponding to the fourth triangular track (34). The second triangular track (32) is arranged parallel to the fourth triangular track (34) and the two have the same length. The first triangular track (31) has three steps arranged from top to bottom: a first step (311), a second step (312), and a third step (313). When the heel (21) of the needle plate (2) moves to the first step (311), the heel (21) and the needle heel (11) continue to move forward and descend along the fourth triangular track (34) and the second triangular track (32) respectively. The third needle hook (123) hooks the yarn for long-pile knitting. When the heel (21) of the needle plate (2) moves to the second step (312), and... When the needle selector (5) pushes the heel (21) away from the first triangular track (31), the heel (11) continues to move forward and descends along the second triangular track (32), and the second needle hook (122) hooks the yarn to perform medium-pile knitting; when the heel (21) of the needle plate (2) moves to the third step (313), and when the needle selector (5) pushes the heel (21) away from the first triangular track (31), the heel (11) continues to move forward and descends along the second triangular track (32), and the first needle hook (121) hooks the yarn to perform short-pile knitting.
2. A cut loop pile knitting machine, having the three-needle hook structure described in claim 1, characterized in that: It also includes a frame and a cylinder (4), the cylinder (4) is mounted on the frame and can rotate around the central axis of the frame, the cylinder wall of the cylinder (4) is provided with a vertically extending slot (41), the knitting needle assembly is installed in the slot (41) and rotates with the cylinder (4), the triangular device is fixedly mounted on the frame and maintains a gap with the outer circle of the cylinder (4); the knitting needle assembly also includes a jacquard piece (6), the lower end of the jacquard piece (6) is provided with a lower fulcrum rotatably connected to the cylinder (4) ( 61) The upper end of the jacquard piece (6) is provided with two clamping arms (62). The lower end of the needle-lifting piece (2) is movably inserted between the two clamping arms (62). Thus, when the jacquard piece (6) rotates around the lower fulcrum (61), the two clamping arms (62) can drive the needle-lifting piece (2) to rotate around the hooking point with the hook (1), thereby driving the heel (21) to enter or leave the first channel. The needle selector (5) is fixedly installed on the frame to drive the jacquard piece (6) to rotate around the lower fulcrum (61).
3. The cut-loop pile knitting machine according to claim 2, characterized in that: The second channel is provided with a fifth triangular track (35) at a position corresponding to the first triangular track (31). The fifth triangular track (35) and the second triangular track (32) are both the upper walls of the second channel, and there is a hollow part (36) between the fifth triangular track (35) and the second triangular track (32).