Roller skin removal device in a flat knitting machine

Abstract

The utility model provides a kind of roller skin dismounting device in flat knitting machine, the device includes rack, swing seat, connecting rod and guide seat, wherein, swing seat is located on rack movement by the restriction of guide seat, connecting rod is fixed to swing seat, and the both ends of connecting rod are provided with crowbar. When operating after roller frame on rack, swing seat rotates and directly drives crowbar synchronous movement, after making crowbar embed the gap between support frame and passive rod, by the action of swing seat upward swing, passive rod is ejected from the arc slot of support frame to the side of support frame by crowbar, and roller skin loses the tight state maintained by active rod and passive rod, so that it is convenient to take out passive rod, support frame and active rod and other components in turn, and the dismounting operation of roller skin is efficiently completed. The whole process avoids the security risk formed by cutting mode. At the same time, the integrity of roller skin is guaranteed, so that it can be reused subsequently, and equipment consumables are effectively saved.

Description

Technical Field

[0001] This utility model relates to the field of roller skin removal technology, and in particular to a roller skin removal device for a flat knitting machine. Background Technology

[0002] In the field of computerized flat knitting machines, roller mechanisms are as follows: Figure 1 As shown, the core components typically consist of a support frame, an active rod, and a passive rod. The support frame has arc-shaped grooves at both ends, into which the active and passive rods are respectively fitted. The rigid support of the support frame pushes them apart, allowing the roller skin to tightly wrap around the active and passive rods, creating tension and ensuring the stability of power transmission during the weaving process.

[0003] However, due to continuous friction between the fibers, the surface of the roller sheet will wear, develop grooves, or thin out, leading to decreased grip and causing uneven stretching, slippage, and other problems. Therefore, it needs to be replaced regularly. Additionally, it needs to be replaced periodically to accommodate process adjustments (such as changing fiber types or yarn specifications) or for preventative maintenance to avoid unexpected malfunctions. Failure to replace it in time can lead to increased yarn breakage rates, uneven yarn distribution, and other quality issues, and may even cause equipment vibration and abnormal noise, affecting production efficiency and stability.

[0004] In existing technologies, the disassembly of roller skin typically involves directly cutting off the old part with a blade. Because roller skin is made of a highly elastic material, the stress release during cutting causes it to contract violently, leading to the blade suddenly becoming unbalanced and bouncing uncontrollably, posing a significant safety hazard to the operator's hands. Furthermore, this destructive disassembly method completely renders the old roller skin unusable, resulting in material waste. Utility Model Content

[0005] To address the shortcomings mentioned above in the background technology, this utility model provides a roller sheet removal device for a flat knitting machine.

[0006] The present invention adopts the following technical solution: A roller sheet removal device for a flat knitting machine, the device comprising: The frame has support grooves on both sides; A swing seat, which is connected to the frame and swings relative to the frame; A connecting rod is fixed to the swing seat, and pry bars are fixed to both ends of the connecting rod; When the roller frame is in the two support grooves, the two pry bars are respectively inserted into the gaps between the support frame and the passive rod extending from both ends of the roller. Then, the swing seat is rotated, causing the connecting rod to flip upward. The pry bars drive the roller to press against the side wall of the support groove. The rotation continues, causing the two pry bars to lift up both ends of the passive rod. The passive rod is dislodged from the arc groove in the support frame and into the gap on one side of the support frame inside the roller skin.

[0007] In one possible implementation, the device further includes a guide seat fixed to the frame. The guide seat has a transverse groove and an arc groove extending through both sides. The transverse groove extends parallel to the frame, and the arc groove curves upward toward the frame, with its lower end communicating with the transverse groove. A first pin and a second pin are provided on both sides of the swing seat. The axial distance between the first pin and the second pin is the same as the radius of the arc groove, and both the first pin and the second pin are embedded in the transverse groove. When the first pin abuts against the end of the transverse groove, the second pin corresponds to the connection between the transverse groove and the arc groove.

[0008] In one possible implementation, the device further includes a drive motor, a first link, and a second link. The drive motor is fixed to the frame, and the output shaft of the drive motor is pivotally connected to one end of the first link. The two ends of the second link are respectively pivotally connected to the other end of the first link and the swing seat.

[0009] In one possible implementation, one end of the pry bar is a flat insert that is inserted into the gap between the support frame and the passive rod. The other end of the pry bar is provided with a mounting ring with a through mounting hole. The mounting hole is a regular hexagonal hole. The connecting rod is a hexagonal prism. The mounting hole is adapted to pass through the connecting rod. A screw is inserted from the outside of the mounting ring to the inside until the screw is tightened against the connecting rod, thereby fixing the pry bar relative to the connecting rod.

[0010] In one possible implementation, a support is fixed on the frame, and the support has a U-shaped groove, which is the support groove; a stop is connected to the side of the support groove away from the pry bar, and when the roller is put into the support groove, the stop abuts against the support groove to block the side of the roller facing away from the pry bar.

[0011] In one possible implementation, one side of the stop block is an inclined support slope, and the other side of the stop block is provided with a through slot. The slot is adapted to fit outside the support seat, so that the support slope presses downward toward the roller inserted into the support slot.

[0012] As can be seen from the above description of the structure of this utility model, compared with the prior art, this utility model has the following advantages: This utility model uses a connecting rod to fix the pry bar to the swing seat to form a rigid connection. When the swing seat rotates, it directly drives the pry bar to move synchronously. After the pry bar is embedded in the gap between the support frame and the passive rod, the upward swinging motion of the swing seat causes the pry bar to push the passive rod out of the arc-shaped groove of the support frame to one side of the support frame. The roller skin loses the tension maintained by the active rod and the passive rod, thus facilitating the sequential removal of components such as the passive rod, support frame, and active rod, efficiently completing the disassembly of the roller skin. The entire process avoids the safety hazards caused by cutting methods. At the same time, it ensures the integrity of the roller skin, allowing it to be reused subsequently, effectively saving equipment consumables. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the three-dimensional structure of Laura.

[0014] Figure 2 This is a three-dimensional structural diagram of the present invention from the front view when the roller is not placed.

[0015] Figure 3 for Figure 2 An enlarged schematic diagram of point A in the middle.

[0016] Figure 4 for Figure 2 A magnified diagram of point B in the middle.

[0017] Figure 5 This is a three-dimensional structural diagram of the present invention from the rear view when the roller is placed.

[0018] Figure 6 for Figure 5 A magnified diagram of point C.

[0019] Figure 7 This is a three-dimensional structural diagram of the guide seat.

[0020] Figure 8 This is a schematic diagram of the three-dimensional structure of the swing seat.

[0021] Figure 9 This is a diagram showing the passive rod being pried up from the arc-shaped groove of the support frame using a crowbar. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this application clearer, the application will now be described in further detail with reference to the accompanying drawings.

[0023] Hereinafter, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature.

[0024] Furthermore, in this application, directional terms such as "upper" and "lower" are defined relative to the indicated placement of the components in the accompanying drawings. It should be understood that these directional terms are relative concepts, used for relative description and clarification, and can change accordingly depending on the placement of the components in the accompanying drawings.

[0025] This utility model provides a device for removing the roller sheet 11 in a flat knitting machine, as shown in the attached figure. Figure 2 , 5 As shown in Figure 6, the device includes a frame 2, a swing seat 3, a connecting rod 4, and a guide seat 5. The frame 2 is fixed to the ground via expansion bolts for overall stability. Support grooves 211 are provided on both sides of the frame 2, specifically for fixing support seats 21. Each support seat 21 has a U-shaped groove, which serves as the support groove 211. When disassembling the roller skin 11, both ends of the roller are placed in the two support grooves 211, allowing the roller to be supported on the frame 2. The swing seat 3 swings relative to the frame 2 via the guide seat 5. The connecting rod 4 is fixed to the swing seat 3, and pry bars 41 are fixed to both ends of the connecting rod 4.

[0026] As attached Figure 3 As shown, one end of the pry bar 41 is a flat insert 411, which is used to insert into the gap between the support frame 14 and the driven rod 13. The other end of the pry bar 41 is provided with a mounting ring 412, which has a through mounting hole. The mounting hole is a regular hexagonal hole, and the connecting rod 4 is a hexagonal prism. The mounting hole is adapted to pass through the connecting rod 4, and a screw 413 is inserted from the outside to the inside of the mounting ring 412 until the screw 413 is firmly pressed against the connecting rod 4, thereby achieving reliable fixation of the pry bar 41 relative to the connecting rod 4. With this configuration, the axial position of the pry bar 41 on the connecting rod 4 can be flexibly adjusted by loosening the screw 413 to adapt to the disassembly requirements of rollers of different lengths, significantly enhancing the versatility and operational adaptability of the device.

[0027] The method for disassembling the Rolla Skin 11 is as follows: S1: The rollers are mounted in the support slots 211 on both sides of the frame 2. S2: Move the swing seat 3 to make the roller move laterally until the pry bar 41 is close to the roller. Then continue to adjust the gap between the insertion part of the pry bar 41 and the support frame 14 and the passive rod 13 of the roller, so that the two pry bars 41 are respectively inserted into the gap between the support frame 14 and the passive rod 13 extending from both ends of the roller. S3: Rotate the swing seat 3 to lift the connecting rod 4 upwards. The pry bar 41 will make the roller stably abut against the side wall of the support groove 211. Continue to rotate the swing seat 3 and use the pry bar 41 to pry the two ends of the passive rod 13 upwards, so that the passive rod 13 is completely separated from the arc groove in the support frame 14 and is pried to the side of the support frame 14 in the roller skin 11 to form a gap. Then the passive rod 13, support frame 14 and active rod 12 can be taken out to complete the disassembly.

[0028] As attached Figure 1 and 9 As shown, it should be noted that in the structure where the support frame 14 pushes open the active rod 12 and the passive rod 13 to ensure that the roller skin 11 tightly wraps around them, there is originally a gap between the two sides of the support frame 14 and the roller skin 11. After the passive rod 13 is pried up to one side of the support frame 14, the roller skin 11 loses the tension maintained by the active rod 12 and the passive rod 13, thus facilitating the sequential removal of components such as the passive rod 13, the support frame 14, and the active rod 12, efficiently completing the disassembly of the roller skin 11. When replacing the roller skin 11, the active rod 12, the support frame 14, and the passive rod 13 are inserted into the new roller skin 11 one by one to complete the replacement of the roller skin 11.

[0029] As attached Figure 4 As shown, a stop block 22 is connected to the side of the support seat 21 away from the pry bar 41. When the roller is inserted into the support seat 211, the stop block 22 abuts against the support seat 211, forming a rigid limit to prevent the roller from facing away from the pry bar 41, effectively suppressing the roller's tendency to flip when the pry bar 41 pries the passive rod 13. Furthermore, one side of the stop block is an inclined support slope, and the other side of the stop block 22 is provided with a through slot 221. The slot 221 is adapted to fit outside the support seat 21, forming a restriction on the lateral position of the stop block 22, and causing the support slope to press downward against the roller inserted into the support seat 211, so that the support slope forms a downward pressure limit on the roller. Finally, a screw 413 is inserted from the outside of the support seat 21 into the stop block 22 to fix the stop block 22 relative to the support seat 21, thereby maintaining the stop block 22's fixed limiting effect relative to the roller.

[0030] Please refer to the appendix. Figures 6 to 8The guide seat 5 is fixed to the frame 2. The guide seat 5 is provided with a transverse groove 51 and an arc groove 52 that pass through both sides. The transverse groove 51 extends parallel to the frame 2, and the arc groove 52 curves upward toward the frame 2, with its lower end communicating with the transverse groove 51. A first pin 31 and a second pin 32 are provided on both sides of the swing seat 3. The first pin 31 and the second pin 32 can be screwed into the swing seat 3 for fixation via a threaded connection. The axial distance between the first pin 31 and the second pin 32 is the same as the radius of the arc groove 52, and both the first pin 31 and the second pin 32 are embedded in the transverse groove 51. When the first pin 31 abuts against the end of the transverse groove 51, the second pin 32 corresponds to the connection between the transverse groove 51 and the arc groove 52. When disassembling the roller skin 11, this structure only requires pushing and lifting the swing seat 3 to trigger the disassembly action described above: In the initial movement stage, the first pin 31 moves along the transverse groove 51, driving the pry bar 41 to insert into the gap between the support frame 14 and the passive rod 13; then, with the first pin 31 as the rotation center, the swing seat 3 is flipped upward, at which time the second pin 32 moves along the arc groove 52 trajectory, forcibly constraining the swing path, and simultaneously driving the connecting rod 4 and the pry bar 41 to complete the stable prying action of the passive rod 13, realizing the triggering of multiple actions in a single operation, significantly reducing the complexity of operation and improving the controllability of the disassembly trajectory.

[0031] Furthermore, the device of this utility model also includes a drive motor 6, a first connecting rod 61, and a second connecting rod 62. The drive motor 6 is fixed to the frame 2. The output shaft of the drive motor 6 is pivotally connected to one end of the first connecting rod 61, and the two ends of the second connecting rod 62 are pivotally connected to the other end of the first connecting rod 61 and the swing seat 3, respectively. The pivot connection structure in this embodiment can be formed by connecting by means of through pins or rivets, so that the two pivotally connected parts can only swing relative to each other. Preferably, this utility model can also be configured with a PLC control system to control the direction of rotation and opening and closing of the output shaft of the drive motor. When the drive motor 6 starts, it drives the first connecting rod 61 to rotate, which in turn links the second connecting rod 62 to swing. The second connecting rod 62 pushes the swing seat 3 to move, so as to complete the above two consecutive actions, that is, first move to the position where the first pin 31 abuts against the end of the transverse groove 51, and then perform the swing action with the first pin 31 as the rotation center. This automation of roller skin 11 disassembly is achieved by driving motor 6 in conjunction with first link 61 and second link 62 to drive swing seat 3. The movement and swing of swing seat 3 can be controlled without manual intervention, which significantly improves the efficiency of roller skin 11 disassembly, while reducing human error and equipment wear risk.

[0032] In summary, this utility model achieves efficient and stable disassembly of the roller skin 11 through the structural design of the support groove 211 of the frame 2 and the linkage of the swing seat 3 with the pry bar 41. Under the constraint of the guide seat 5 horizontal groove 51 and arc groove 52, the swing seat 3 drives the pry bar 41 to complete the continuous action of inserting into the gap and prying away from the passive rod 13 with the first pin 31 as the rotation center. With the linkage control of the drive motor 6 through the first link 61 and the second link 62, the swing trajectory of the swing seat 3 is controlled, so that the pry bar 41 automatically pries up the passive rod 13, which greatly improves the disassembly efficiency and reliability while reducing manual intervention.

[0033] The above are merely specific embodiments of this utility model, but the design concept of this utility model is not limited thereto. Any non-substantial modifications made to this utility model using this concept shall be considered as an infringement of the protection scope of this utility model.

Claims

1. A roller sheet removal device for a flat knitting machine, characterized in that, The device includes: The frame has support grooves on both sides; A swing seat, which is connected to the frame and swings relative to the frame; A connecting rod is fixed to the swing seat, and pry bars are fixed to both ends of the connecting rod; When the roller frame is in the two support grooves, the two pry bars are respectively inserted into the gaps between the support frame and the passive rod extending from both ends of the roller. Then, the swing seat is rotated, causing the connecting rod to flip upward. The pry bars drive the roller to press against the side wall of the support groove. The rotation continues, causing the two pry bars to lift up both ends of the passive rod. The passive rod is dislodged from the arc groove in the support frame and into the gap on one side of the support frame inside the roller skin.

2. The apparatus as claimed in claim 1, characterized in that, The device also includes a guide seat fixed to the frame. The guide seat has a transverse groove and an arc groove extending through both sides. The transverse groove extends parallel to the frame, and the arc groove curves upward toward the frame, with the lower end of the arc groove communicating with the transverse groove. A first pin and a second pin are provided on both sides of the swing seat. The axial distance between the first pin and the second pin is the same as the radius of the arc groove, and both the first pin and the second pin are embedded in the transverse groove. When the first pin abuts against the end of the transverse groove, the second pin corresponds to the connection between the transverse groove and the arc groove.

3. The apparatus as described in claim 2, characterized in that, The device also includes a drive motor, a first connecting rod, and a second connecting rod. The drive motor is fixed to the frame, and the output shaft of the drive motor is pivotally connected to one end of the first connecting rod. The two ends of the second connecting rod are respectively pivotally connected to the other end of the first connecting rod and the swing seat.

4. The apparatus as claimed in claim 1, characterized in that, One end of the pry bar is a flat insert that is inserted into the gap between the support frame and the passive rod. The other end of the pry bar is provided with a mounting ring with a through mounting hole. The mounting hole is a regular hexagonal hole. The connecting rod is a hexagonal prism. The mounting hole is adapted to pass through the connecting rod. A screw is inserted from the outside of the mounting ring to the inside until the screw is tightened against the connecting rod, thus fixing the pry bar relative to the connecting rod.

5. The apparatus as claimed in claim 1, characterized in that, A support is fixed on the frame, and the support has a U-shaped groove, which is the support groove. A stop block is connected to the support on the side of the support groove away from the pry bar. When the roller is put into the support groove, the stop block abuts against the support groove to block the side of the roller facing away from the pry bar.

6. The apparatus as claimed in claim 5, characterized in that, One side of the stop block is an inclined support slope, and the other side of the stop block is provided with a through slot. The slot is adapted to fit outside the support seat, so that the support slope presses downward toward the roller placed in the support slot.

Images