Sinker of flat knitting machine and flat knitting machine

Abstract

The invention discloses a sinker of a flat knitting machine and the flat knitting machine, belongs to the field of knitting machinery, and solves the problem that the closing depth of the sinker is shallower due to the fact that the moving track of the sinker is relatively single, according to the technical scheme for solving the problem, the sinker mainly comprises a body, and a first track groove and a second track groove are formed in the body; the first track groove comprises a first straight line section, a first arc section and a second arc section, the second track groove comprises a second straight line section and a third arc section, the first straight line section is parallel to the second straight line section, and the first arc section and the third arc section share a first circle center; the end, away from the second linear section, of the third arc section serves as a second circle center of the second arc section. Movement of the sinker is formed by combination of various motions, a coil can be effectively and reliably pressed, and the requirement for multiple times of local knitting or waste yarn-free knitting can be met.

Description

Technical Field

[0001] This invention discloses a sinker for a flat knitting machine and the flat knitting machine itself, belonging to the field of knitting machinery technology. Background Technology

[0002] A flat knitting machine is a double-needle plate-latch weft knitting machine. The cam mechanism on the needle bed acts like a set of planar cams. The needle feet can enter the grooves of the cams. Moving the cams forces the needles to move up and down rhythmically within the needle grooves of the needle bed. Through the movement of the hooks and latches, the yarn is knitted into a fabric. As the needle rises, the loops gradually exit the hooks, the latches open, and the loops are hooked onto the needle bar. As the needle descends, the hooks catch newly placed yarn and pull and bend it into a loop. At the same time, the existing loops exit the hooks, and the new loops pass through the old loops and are connected in series. Multiple loops knitted by the needles are interconnected to form a knitted fabric.

[0003] Flat knitting machines are equipped with sinkers, which press or block the loops during the loop-forming process, thus greatly increasing the knitting function of the machine and enriching the patterns of the knitted fabrics. However, in the current technology, the sinkers rotate around a fixed axis to open or close. The single rotational movement of the sinkers cannot effectively and reliably press down the loops or long dotted threads that are floating on the edge of the needle teeth. They often penetrate into the loops or long dotted threads, causing the loops to move upwards with the needle and become unable to detach from the needle's latch, preventing the needle from completing the knitting and resulting in damage to the knitted fabric. In addition, the closing depth of the current sinkers is relatively shallow. When the needle is knitting in multiple partial knitting operations or when there is no waste yarn, the sinkers cannot reliably press down the loops, which easily leads to knitting damage. Summary of the Invention

[0004] The purpose of this invention is to solve the problem that the relatively simple movement trajectory of the sinker makes it impossible for the sinker to effectively and reliably press down the coil or long dotted line floating on the edge of the toothed plate, and the closing depth of the sinker is shallow. To this end, a sinker for a flat knitting machine and a flat knitting machine are provided. The movement of the sinker is composed of multiple trajectories, which can reliably press down the coil or long dotted line floating on the edge of the toothed plate and effectively increase the closing depth of the sinker.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A sinker for a flat knitting machine includes a body having a pressing part, a heel, and a tail. The body has a first track groove and a second track groove. The first track groove includes a first straight segment, a first arc segment, and a second arc segment. The second track groove includes a second straight segment and a third arc segment. The first straight segment is parallel to the second straight segment. The first arc segment and the third arc segment have a common first center. The second arc segment has a second center at the end of the third arc segment away from the second straight segment. The sinker has continuous first, second, and third tracks on the flat knitting machine. Under the first track, the sinker moves along the direction of the first and second straight segments to form the first track. The sinker swings around the first center to form the second track. The sinker swings around the second center to form the third track.

[0007] The beneficial effects of using the present invention are:

[0008] The sinker in this invention has a first track groove and a second track groove. These grooves allow the sinker to follow a continuous first, second, and third track on the flat knitting machine. The first track is a straight line, while the second and third tracks are both arcs. During the movement of the sinker on the flat knitting machine, it first moves along the first track to bring the pressing part close to the coil or long dotted line. Then, it oscillates along the second and third tracks to press the coil or long dotted line, thus smoothly completing the pressing process. Adding a straight section of the first track to the sinker's movement increases its moving height, allowing it to get closer to the coil or long dotted line before pressing it. The dotted lines ensure that the sinker effectively and reliably presses down on the coils or long dotted lines, allowing them to unwind properly and facilitating smooth knitting, thus improving the yield of the knitted fabric. Furthermore, the sinker's pressing action has two stages: the second track allows for normal pressing of the coils or long dotted lines, enabling normal knitting; continuing along the third track presses the coils or long dotted lines to their lowest point, allowing for continuous multiple knitting operations. This is particularly suitable for continuous partial knitting and waste-free knitting. By controlling the sinker's movement trajectory, the flat knitting machine can meet different knitting needs, improving its flexibility and applicability, achieving multi-purpose functionality, and helping to reduce production costs.

[0009] The present invention also discloses a flat knitting machine, including a needle bed, a sinker, and a drive mechanism for moving the sinker. The needle bed is provided with a plurality of slots for mounting the sinker. The sinker is a sinker as described above. The sinker has an initial position, an upward position, a first pressing position, and a second pressing position relative to the needle bed. The initial position and the upward position are respectively located at the two ends of a first track. The upward position and the first pressing position are respectively located at the two ends of a second track. The first pressing position and the second pressing position are respectively located at the two ends of a third track.

[0010] Using the aforementioned technical solution, during the knitting process, the sinker first moves from its initial position along a first trajectory to an upward position, then along a second trajectory to a first pressing position, and finally along a third trajectory to a second pressing position. Compared to the traditional single trajectory, in this invention, the sinker first moves from its initial position to an upward position along a first trajectory before pressing, and the first trajectory is a straight line. Therefore, the pressing part of the sinker moves from inside the needle groove to outside the needle groove, giving the pressing part a higher pressing position, closer to the loop or long dotted line. This effectively prevents the sinker from rotating and drilling into the loop or long dotted line, allowing the sinker to effectively and reliably press the loop or long dotted line on the needle, thus enabling the loop or long dotted line to unwind normally, allowing the needle to complete the knitting smoothly and improving the yield rate. Simultaneously... The pressing part is kept in a high position to prevent the sinker from crushing the coil or long dotted thread. Additionally, as the sinker rotates from its upper position along the second track to the first pressing position, the pressing part presses the coil or long dotted thread to a lower position to allow it to unravel, thus smoothly completing the knitting process. When multiple knitting operations are required, the sinker can continue to swing from the first pressing position along the third track to the second pressing position. At this time, the pressing part can press the coil or long dotted thread to the lowest point of the loop formation, ensuring that the flat knitting machine can perform multiple knitting operations continuously. This is particularly suitable for continuous partial knitting and waste-free knitting. By controlling the movement trajectory of the sinker, the flat knitting machine can meet different knitting needs, improving its working flexibility and applicability, achieving a multi-purpose effect, and helping to reduce production costs.

[0011] Preferably, the first track groove is provided with a first positioning shaft, and the second track groove is provided with a second positioning shaft. In the initial position, the first positioning shaft is located at the end of the first straight segment away from the first arc segment, and the second positioning shaft is located at the end of the second straight segment away from the third arc segment. In the upward position, the first positioning shaft is located at the connection between the first straight segment and the first arc segment, and the second positioning shaft is located at the connection between the second straight segment and the third arc segment. In the first pressing position, the first positioning shaft is located at the connection between the first arc segment and the second arc segment, and the second positioning shaft is located at the end of the third arc segment away from the second straight segment. In the second pressing position, the first positioning shaft rotates around the second positioning shaft as the second center to the end of the second arc segment away from the first arc segment.

[0012] Preferably, the first trajectory of the sinker is parallel to the upper surface of the needle bed, and the diameter of the circle containing the second trajectory is larger than the diameter of the circle containing the third trajectory. The sinker moves the pressing part closer to the needle bed along the second and third trajectories. Using the aforementioned technical solution, the sinker moves along the first trajectory parallel to the upper surface of the needle bed, ensuring its linear translational motion remains consistent with the needle bed reference. This results in stable movement and uniform force distribution, effectively preventing interference between the sinker and the needle bed or needles during movement, and ensuring stable and reliable upward movement of the sinker. Furthermore, the two arc trajectories of different diameters create a graded oscillation, first with a large amplitude and then a small amplitude. This allows the sinker to first press the coil or long dotted line with a large amplitude, and then press the coil or long dotted line to its lowest point with a small amplitude. This prevents the coil or long dotted line from breaking due to excessive travel as it descends to the lowest point, facilitating smooth completion of subsequent knitting and improving the yield of the knitted fabric.

[0013] Preferably, the groove walls on both sides of the first track groove are in contact with the first positioning shaft, and the groove walls on both sides of the second track groove are in contact with the second positioning shaft. By adopting the aforementioned technical solution, the fit gap between the positioning shaft and the track groove can be effectively eliminated, preventing the settling plate from swaying, shifting, or deflecting during high-speed movement. This allows the settling plate to move along a stable and unique trajectory, ensuring precise and stable movement and oscillation of the settling plate, and significantly improving the consistency of the settling plate's movement.

[0014] Preferably, the pressing part and the tail part are located at the front end and rear end of the body, respectively, and the first track groove is closer to the pressing part than the second track groove.

[0015] Preferably, the first straight segment is located at one end of the first track groove near the pressing part, and the first and second arc segments extend toward the side away from the needle bed; the second straight segment is located at one end of the second track groove near the pressing part, and the third arc segment extends toward the side away from the needle bed.

[0016] Preferably, the needle bed is provided with several inserts, and slots are formed between adjacent inserts. Each slot has a stepped surface. The needle bed is also fitted with a third positioning shaft. In the first trajectory, the third positioning shaft abuts against the side of the tail facing away from the needle bed, and the stepped surface abuts against the side of the tail facing the needle bed. The third positioning shaft and the stepped surface cooperate to restrict the rotation of the sinker. Using the aforementioned technical solution, the third positioning shaft and the stepped surface abut against both sides of the sinker, thereby restricting the tail of the sinker from tilting upwards or deflecting. This ensures that the sinker can move stably along a straight line in the first trajectory, reducing the possibility of deflection and guaranteeing the accuracy and stability of the sinker's movement, significantly improving the consistency of the sinker's motion.

[0017] Preferably, the end of the tail furthest from the pressing part is provided with a guide surface. In the upward position, the third positioning shaft abuts against the guide surface, and the settling piece rotates along the second trajectory. The guide surface guides the tail to abut or separate from the third positioning shaft. Using the aforementioned technical solution, when the settling piece starts rotating along the second trajectory or moving along the first trajectory from the upward position, the guide surface can cooperate with the third positioning shaft to guide the tail to separate or abut against the third positioning shaft. This makes the switching between linear movement and oscillating motion of the settling piece smoother and more stable, while also ensuring the accuracy and consistency of the settling piece's movement trajectory, avoiding rigid collisions and jamming between the tail and the third positioning shaft, and making the movement switching of the settling piece more gentle.

[0018] Preferably, the needle bed is further provided with a third positioning shaft and a fourth positioning shaft. In the first trajectory, the third and fourth positioning shafts abut against both sides of the tail end to restrict the rotation of the settling plate. By adopting the aforementioned technical solution, during the linear movement of the first trajectory, the third and fourth positioning shafts abut against both sides of the tail end of the settling plate, thereby restricting the settling plate from rotating in the first trajectory. This ensures that the settling plate maintains a straight and stable posture in the first trajectory, reducing the possibility of deflection, swaying, or shifting, and making the movement of the settling plate more stable and reliable.

[0019] Other features and advantages of the present invention will be disclosed in detail in the following detailed description and accompanying drawings. Attached Figure Description

[0020] The invention will be further described below with reference to the accompanying drawings:

[0021] Figure 1 This is a schematic diagram of the sinker plate of a flat knitting machine according to the present invention;

[0022] Figure 2 This is a cross-sectional view of a sinker in the initial position in a flat knitting machine according to the present invention;

[0023] Figure 3This is a cross-sectional view of a sinker in an upwardly moved position in a flat knitting machine according to the present invention;

[0024] Figure 4 This is a cross-sectional view of a sinker in the first pressing position in a flat knitting machine according to the present invention;

[0025] Figure 5 This is a cross-sectional view of a sinker in the second pressing position in a flat knitting machine according to the present invention;

[0026] Figure 6 This is a cross-sectional view of the flat knitting machine in Embodiment 3 of the present invention.

[0027] Reference numerals: 1. Sinking plate; 11. Body; 12. Pressing part; 13. Plate heel; 14. Tail; 141. Guide surface; 15. First track groove; 151. First straight segment; 152. First arc segment; 153. Second arc segment; 16. Second track groove; 161. Second straight segment; 162. Third arc segment; 163. Second center; 17. First center; 2. Needle bed; 21. Slot; 3. Insert plate; 31. Step surface; 4. Toothed plate; 51. First positioning axis; 52. Second positioning axis; 53. Third positioning axis; 54. Fourth positioning axis. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of the present invention and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of the present invention.

[0029] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0030] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0031] Example 1:

[0032] like Figure 1 As shown in the figure, this embodiment illustrates a sinker plate 1 for a flat knitting machine. The sinker plate 1 has a thin sheet structure and includes a body 11. The body 11 has a pressing part 12, a heel 13, and a tail 14. The pressing part 12 and the tail 14 are located at the front end and rear end of the body 11, respectively. The body 11 is provided with a first track groove 15 and a second track groove 16, which penetrate the body 11. The first track groove 15 includes a first straight segment 151, a first arc segment 152, and a second arc segment 153. The second track groove 16 includes a second straight segment 161 and a third arc segment 162. The first straight segment 151 is parallel to the second straight segment 161. The first arc segment 152 and the third arc segment 162 share a common first center 17. The second arc segment 153 has a second center 163 with the end of the third arc segment 162 away from the second straight segment 161 as its second center. The sinker 1 has a continuous first track, a second track, and a third track on the flat knitting machine. Under the first track, the sinker 1 moves along the direction of the first straight segment 151 and the second straight segment 161 to form the first track. The sinker 1 swings around the first center 17 to form the second track. The sinker 1 swings around the second center 163 to form the third track.

[0033] In this embodiment, the sinker 1 is provided with a first track groove 15 and a second track groove 16. The first track groove 15 and the second track groove 16 allow the sinker 1 to have continuous first, second, and third tracks on the flat knitting machine. The first track is a straight line, while the second and third tracks are both arcs. During the movement of the sinker 1 on the flat knitting machine, it first moves along the first track to bring the pressing part 12 close to the coil or long dotted line. Then, it swings along the second and third tracks to press the coil or long dotted line, thus smoothly completing the pressing process. Adding a straight section of the first track to the movement trajectory of the sinker 1 increases the moving height of the sinker 1, allowing it to move more precisely before pressing the coil or long dotted line. By moving closer to the coil or long dotted line, the sinker 1 can effectively and reliably press the coil or long dotted line, allowing it to unwind properly and smoothly complete the knitting process, thus improving the yield of the knitted fabric. Furthermore, the sinker 1's pressing action has two stages: the second track allows for normal pressing of the coil or long dotted line, enabling normal knitting; continuing along the third track presses the coil or long dotted line to its lowest point, allowing for continuous multiple knitting operations. This is particularly suitable for continuous partial knitting and waste-free knitting. By controlling the movement trajectory of the sinker 1, the flat knitting machine can meet different knitting needs, improving its operational flexibility and applicability, achieving a multi-purpose machine effect, and helping to reduce production costs.

[0034] Example 2:

[0035] like Figures 2 to 5 As shown in the figure, this embodiment illustrates a flat knitting machine, including a needle bed 2 and a drive mechanism. The needle bed 2 is provided with a plurality of spaced inserts 3, and a slot 21 is formed between two adjacent inserts 3. A sinker 1 is movably disposed in the slot 21. The sinker 1 is the sinker 1 described in Embodiment 1. A plurality of positioning shafts pass through the inserts 3, and some positioning shafts also pass through the sinker 1 to limit the range of motion of the sinker 1 in the slot 21. The sinker 1 has an initial position, an upward position, a first pressing position and a second pressing position relative to the needle bed 2. The initial position and the upward position are respectively located at the two ends of a first track. The sinker 1 moves along the first track to switch between the initial position and the upward position. The upward position and the first pressing position are respectively located at the two ends of a second track. The sinker 1 moves along the second track to switch between the upward position and the first pressing position. The first pressing position and the second pressing position are respectively located at the two ends of a third track. The sinker 1 moves along the third track to switch between the first pressing position and the second pressing position.

[0036] In this embodiment, during the knitting process, the sinker 1 first moves from its initial position along a first trajectory to an upward position, then moves along a second trajectory to a first pressing position, and finally moves along a third trajectory to a second pressing position. Compared to the traditional single trajectory, in this invention, the sinker 1 moves from its initial position to an upward position along a first trajectory before pressing, and the first trajectory is a straight line. Therefore, the pressing part 12 of the sinker 1 moves from inside the needle groove to outside the needle groove, giving the pressing part 12 a higher pressing position, closer to the loop or long dotted line. This effectively prevents the sinker 1 from drilling into the loop or long dotted line after rotating, allowing the sinker 1 to effectively and reliably press the loop or long dotted line on the needle, thus allowing the loop or long dotted line to unwind normally, so that the needle can complete the knitting smoothly and improve the yield. At the same time, keeping the pressing part 12 in a higher position prevents the sinker 1 from breaking the loop or long dotted line. Furthermore, during the process of the sinker 1 rotating from the upper position along the second track to the first pressing position, the pressing part 12 presses the coil or long dotted thread to a lower position to meet the requirement that the coil or long dotted thread can be unhooked, thus smoothly completing the knitting. When multiple knitting operations are required, the sinker 1 can continue to swing from the first pressing position along the third track to the second pressing position. At this time, the pressing part 12 can press the coil or long dotted thread to the lowest point of the looping part, ensuring that the flat knitting machine can perform multiple knitting operations continuously. It is particularly suitable for continuous partial knitting and waste yarn-free knitting. By controlling the movement trajectory of the sinker 1, the flat knitting machine can meet different knitting needs, improve the working flexibility and applicability of the flat knitting machine, achieve the effect of multi-purpose machine, and help reduce production costs. Secondly, by changing the length of the first track groove 15 and the second track groove 16, the pressing depth of the sinker 1 can be changed, thereby meeting the needs of different knitting processes.

[0037] Specifically, in this embodiment, the positioning shafts include a first positioning shaft 51, a second positioning shaft 52, and a third positioning shaft 53. The first positioning shaft 51 passes through a first track groove 15, and the second positioning shaft 52 passes through a second track groove 16. When the settling piece 1 moves within the slot 21, the first positioning shaft 51 moves relative to the settling piece 15, while the second positioning shaft 52 moves relative to the settling piece 16. During the movement of the settling piece 1 along the first track, the first positioning shaft 51 moves relative to the settling piece 151 along the first straight segment 151, while the second positioning shaft 52 moves relative to the settling piece 161 along the second straight segment 161. During the movement of the settling piece 1 along the second track, the first positioning shaft 51 moves relative to the settling piece 152 along the first arc segment 152, while the second positioning shaft 52 moves relative to the settling piece 162 along the third arc segment 162. During the movement of the settling piece 1 along the third track, the second positioning shaft 52 remains at the end of the third arc segment 162, and the first positioning shaft 51 moves relative to the settling piece 153 with the second positioning shaft 52 as the center.

[0038] In addition, in this embodiment, the insert 3 is provided with a stepped surface 31. During the movement of the sinker 1 along the first trajectory, the third positioning shaft 53 abuts against the side of the tail 14 facing away from the needle bed 2, and the stepped surface 31 abuts against the side of the tail 14 facing the needle bed 2. The third positioning shaft 53 and the stepped surface 31 abut against both sides of the sinker 1, thereby restricting the rotation of the sinker 1. The end of the tail 14 away from the pressing part 12 is provided with a guide surface 141. The guide surface 141 is located on the side of the tail 14 facing away from the needle bed 2. The guide surface 141 gradually tilts towards the needle bed 2 as it moves away from the pressing part 12. When the sinker 1 is in the upward position, the third positioning shaft 53 abuts against the guide surface 141, and the sinker 1 rotates along the second trajectory. The guide surface 141 guides the tail 14 to abut or separate from the third positioning shaft 53. For example, by engaging with the tail 14 of the settling plate 1 through the third positioning shaft 53, the tail 14 of the settling plate 1 is restricted from tilting upwards or deflecting, ensuring that the settling plate 1 can move stably along a straight line in the first trajectory, reducing the possibility of the settling plate 1 deflecting in the first trajectory, ensuring the accuracy and stability of the movement of the settling plate 1, and greatly improving the consistency of the movement of the settling plate 1; in addition, when the settling plate 1 starts to rotate along the second trajectory or move along the first trajectory from the upper position, the guide surface 141 can engage with the third positioning shaft 53 to guide the tail 14 to separate from or engage with the third positioning shaft 53, making the switching between the linear movement and the oscillating movement of the settling plate 1 smoother and more stable, while also ensuring the accuracy and consistency of the movement trajectory of the settling plate 1, avoiding rigid collision and jamming between the tail 14 and the third positioning shaft 53, and making the movement switching of the settling plate 1 more gentle.

[0039] Regarding the first track groove 15 and the second track groove 16, in this embodiment, the first track groove 15 is closer to the pressing part 12 than the second track groove 16. The first straight segment 151 and the second straight segment 161 are both parallel to the upper surface of the needle bed 2. The first straight segment 151 is located at the end of the first track groove 15 near the pressing part 12, and the second straight segment 161 is located at the end of the second track groove 16 near the pressing part 12. The first arc segment 152 is connected to the end of the first straight segment 151 and extends toward the side away from the needle bed 2. The second arc segment 153 is connected to the end of the first arc segment 152 and extends toward the side away from the needle bed 2. The third arc segment 162 is connected to the end of the second straight segment 161 and extends toward the side away from the needle bed 2.

[0040] In this embodiment, the first arc segment 152 and the third arc segment 162 share a common first center 17, which is located near the upper surface of the needle bed 2. When the second positioning axis 52 is at the end of the third arc segment 162 away from the second straight segment 161, the second center 163 of the second arc segment 153 coincides with the axis of the second positioning axis 52. At this time, the second arc segment 153 is an arc segment distributed around the second positioning axis 52, and the diameter of the circle containing the second trajectory is larger than the diameter of the circle containing the third trajectory. The sinking plate 1 moves the pressing part 12 closer to the needle bed 2 along the second and third trajectories. The sinking plate 1 moves along a path parallel to the needle bed 2. The first trajectory movement on the upper surface of the needle bed 2 ensures that its linear translational motion is consistent with the reference of the needle bed 2, resulting in a stable movement posture and uniform force. This effectively avoids interference between the sinker 1 and the needle bed 2 and the knitting needles during the movement, ensuring that the upward movement of the sinker 1 is stable and reliable. In addition, the sinker 1 forms a graded oscillation with a large swing amplitude followed by a small swing amplitude through two arc trajectories of different diameters. This allows the sinker 1 to first press the loop or long dotted line with a large swing amplitude, and then press the loop or long dotted line to the lowest point with a small swing amplitude. This avoids damage to the loop or long dotted line due to excessive travel during the descent to the lowest point, thus facilitating the smooth completion of subsequent knitting and improving the yield of the knitted fabric.

[0041] In addition, in this embodiment, the width of the first track groove 15 is the same as the diameter of the first positioning shaft 51, and the groove walls on both sides of the first track groove 15 are in contact with the first positioning shaft 51. The width of the second track groove 16 is the same as the diameter of the second positioning shaft 52, and the groove walls on both sides of the second track groove 16 are in contact with the second positioning shaft 52. This can effectively eliminate the gap between the positioning shaft and the track groove, avoid the settling plate 1 from shaking, shifting, and deflecting during high-speed movement, and enable the settling plate 1 to move along a stable and unique trajectory. This ensures that the movement and swinging motion of the settling plate 1 are precise and stable, and greatly improves the consistency of the movement of the settling plate 1.

[0042] The principle by which the settling sheet 1 participates in the weaving is as follows:

[0043] like Figure 2As shown, the settling plate 1 is in its initial position. At this time, the first positioning shaft 51 is located at the end of the first straight segment 151 near the pressing part 12, the second positioning shaft 52 is located at the end of the second straight segment 161 near the pressing part 12, and the third positioning shaft 53 abuts against the side of the tail 14 facing away from the needle bed 2. The pressing part 12 is located in the needle groove. When the settling plate 1 needs to press the ring, the driving mechanism acts on the heel 13 and pushes the settling plate 1 along the slot 21 through the heel 13. The settling plate 1 forms a first trajectory, which is a straight segment. During the movement of the settling plate 1 along the first trajectory, the first positioning shaft 51 moves relative to the first straight segment 151 until the connection between the first straight segment 151 and the first arc segment 152. The second positioning shaft 52 moves relative to the second straight segment 161 until the connection between the second straight segment 161 and the third arc segment 162. At this time, the settling plate 1 moves to the upward position. (Refer to...) Figure 3 As shown; in the upward position, the pressing part 12 of the sinker 1 extends out of the slot 21 from the front end of the needle bed 2 and approaches the coil or long dotted line. The first positioning shaft 51 is located at the connection between the first straight segment 151 and the first arc segment 152. The second positioning shaft 52 is located at the connection between the second straight segment 161 and the third arc segment 162. The third positioning shaft 53 abuts against the guide surface 141 of the tail 14.

[0044] The drive mechanism then continues to push the heel 13 to move the sinker 1. Guided by the first arc segment 152 and the third arc segment 162, the sinker 1 swings around the first center 17, forming a second trajectory. The second trajectory is an arc segment. As the sinker 1 moves along the second trajectory, the first positioning shaft 51 moves relative to the first arc segment 152 until it connects with the second arc segment 153. The second positioning shaft 52 moves relative to the third arc segment 162 until it moves away from the end of the second straight segment 161. At this point, the sinker 1 moves to the first pressing position. (Refer to...) Figure 4 As shown; in the first pressing position, the pressing part 12 of the settling plate 1 presses the coil or the long dotted line so that the coil can be unwound normally. The first positioning shaft 51 is located at the connection between the first arc segment 152 and the second arc segment 153. The second positioning shaft 52 is located at the end of the third arc segment 162 away from the second straight segment 161. The third positioning shaft 53 is separated from the tail 14.

[0045] When the flat knitting machine needs to perform multiple consecutive knitting operations, the drive mechanism continues to push the heel 13 to drive the sinker 1 to continue moving. Guided by the second arc segment 153, the sinker 1 swings around the second positioning axis 52, forming a third trajectory. The third trajectory is an arc segment. During the movement of the sinker 1 along the third trajectory, the second positioning axis 52 remains at the end of the third arc segment 162 away from the second straight segment 161. The first positioning axis 51 moves relative to the second arc segment 153 until the second arc segment 153 is away from the end of the first arc segment 152. At this time, the sinker 1 moves to the second pressing position. (Reference) Figure 5 As shown; in the second pressing position, the sinker 1 presses the coil or long dotted line to the lowest point of the looping part of the toothed plate 4, ensuring that it can be woven continuously multiple times without the use of rollers for pulling, which is particularly suitable for continuous partial weaving and waste yarn-free weaving.

[0046] The movement path of the settling piece 1 returning to its initial position is exactly the opposite of the movement path of the settling piece 1 participating in the weaving. That is, the settling piece 1 moves in the opposite direction from the second pressing position along the third trajectory to the first pressing position, then the settling piece 1 moves in the opposite direction from the first pressing position along the second trajectory to the upward position, and finally the settling piece 1 moves in the opposite direction from the upward position along the first trajectory to the initial position, thereby completing the reset of the settling piece 1.

[0047] Example 3:

[0048] The main difference between this embodiment and Embodiment 2 is that, as Figure 6 As shown, in this embodiment, the needle bed 2 is also provided with a fourth positioning shaft 54. In the first trajectory, the third positioning shaft 53 and the fourth positioning shaft 54 ​​respectively abut against the two sides of the tail 14 to restrict the rotation of the sinking plate 1. During the linear movement of the first trajectory, the third positioning shaft 53 and the fourth positioning shaft 54 ​​respectively abut against the two sides of the tail 14 of the sinking plate 1, thereby restricting the sinking plate 1 from rotating in the first trajectory, ensuring that the sinking plate 1 has a straight and stable posture in the first trajectory, reducing the possibility of the sinking plate 1 deflecting, shaking and swaying, and making the movement of the sinking plate 1 more stable and reliable.

[0049] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Those skilled in the art should understand that the present invention includes, but is not limited to, the contents described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of the present invention will be included within the scope of the claims.

Claims

1. A sinker for a flat knitting machine, comprising a body having a pressing portion, a sinker heel, and a tail portion, characterized in that, The main body is provided with a first track groove and a second track groove. The first track groove includes a first straight line segment, a first arc segment, and a second arc segment. The second track groove includes a second straight line segment and a third arc segment. The first straight line segment is parallel to the second straight line segment. The first arc segment and the third arc segment have a common first center. The second arc segment has a second center at the end of the third arc segment away from the second straight line segment. The sinker has a continuous first track, a second track, and a third track on the flat knitting machine. Under the first track, the sinker moves along the direction of the first straight line segment and the second straight line segment to form the first track. The sinker swings around the first center to form the second track. The sinker swings around the second center to form the third track.

2. A flat knitting machine, comprising a needle bed, sinkers, and a drive mechanism for moving the sinkers, wherein the needle bed is provided with a plurality of slots for mounting the sinkers, characterized in that, The settling pad is the settling pad as described in claim 1. The settling pad has an initial position, an upward position, a first pressing position and a second pressing position relative to the needle bed. The initial position and the upward position are respectively located at the two ends of the first trajectory. The upward position and the first pressing position are respectively located at the two ends of the second trajectory. The first pressing position and the second pressing position are respectively located at the two ends of the third trajectory.

3. A flat knitting machine according to claim 2, characterized in that, The first track groove is provided with a first positioning shaft, and the second track groove is provided with a second positioning shaft. In the initial position, the first positioning shaft is located at the end of the first straight line segment away from the first arc segment, and the second positioning shaft is located at the end of the second straight line segment away from the third arc segment. In the upward position, the first positioning shaft is located at the connection between the first straight line segment and the first arc segment, and the second positioning shaft is located at the connection between the second straight line segment and the third arc segment. In the first pressing position, the first positioning shaft is located at the connection between the first arc segment and the second arc segment, and the second positioning shaft is located at the end of the third arc segment away from the second straight line segment; in the second pressing position, the first positioning shaft rotates around the second positioning shaft as the second center to the end of the second arc segment away from the first arc segment.

4. A flat knitting machine according to claim 2, characterized in that, The first trajectory of the sinker is parallel to the upper surface of the needle bed, the diameter of the circle containing the second trajectory is larger than the diameter of the circle containing the third trajectory, and the sinker moves the pressing part closer to the needle bed along the second and third trajectories.

5. A flat knitting machine according to claim 2, characterized in that, The groove walls on both sides of the first track groove are in contact with the first positioning shaft, and the groove walls on both sides of the second track groove are in contact with the second positioning shaft.

6. A flat knitting machine according to claim 2, characterized in that, The pressing part and the tail part are located at the front end and rear end of the body, respectively, and the first track groove is closer to the pressing part than the second track groove.

7. A flat knitting machine according to claim 6, characterized in that, The first straight segment is located at one end of the first track groove near the pressing part, and the first and second arc segments extend toward the side away from the needle bed; the second straight segment is located at one end of the second track groove near the pressing part, and the third arc segment extends toward the side away from the needle bed.

8. A flat knitting machine according to claim 2, characterized in that, The needle bed is provided with a number of inserts, and the slots are formed between two adjacent inserts. The slots are provided with stepped surfaces. The needle bed is also provided with a third positioning shaft. In the first trajectory, the third positioning shaft abuts against the side of the tail facing away from the needle bed, and the stepped surface abuts against the side of the tail facing the needle bed. The third positioning shaft and the stepped surface cooperate to restrict the rotation of the settling plate.

9. A flat knitting machine according to claim 8, characterized in that, The end of the tail that is away from the pressing part is provided with a guide surface. In the upward position, the third positioning shaft abuts against the guide surface, the settling piece rotates along the second trajectory, and the guide surface guides the tail to abut against or separate from the third positioning shaft.

10. A flat knitting machine according to claim 2, characterized in that, The needle bed is also provided with a third positioning shaft and a fourth positioning shaft. In the first trajectory, the third positioning shaft and the fourth positioning shaft abut against the two sides of the tail to restrict the rotation of the settling plate.

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