Textile machinery tension rake device with controllable tension

Abstract

The invention provides a textile machinery tension rake device with controllable tension, and relates to the technical field of textile machinery, the textile machinery tension rake device comprises a tension mechanism, the tension mechanism comprises a rake body part, a non-return part and a cavity, the rake body part is slidably arranged in the cavity, the non-return part is connected to the rake body part through an elastic piece, and the cavity is provided with a cavity. The non-return part slides in the cavity, and the multiple tension mechanisms are transversely arranged. The elastic piece applies pressure to the rake body part, the sliding distance of the non-return part is used for controlling the pulling force, and when the external force of the shaft pressing motion of the pressure control mechanism disappears, the non-return ratchet and the trapezoidal tooth are meshed with each other to prevent the non-return part of the rake from returning, so that the pulling force is kept; the downward pulling force of the rake non-return part on the rake body part is reduced due to the downward movement of the fabric, the pressure control mechanism does work again and circulates in this way, and the rake downwards pulls the fabric to a designated position and then the required rake is selected by the ascending selection mechanism to ascend as a cycle.

Description

Technical Field

[0001] The present invention relates to the technical field of textile machinery, and specifically to a textile machinery tension rake device with controllable tension. Background Art

[0002] In the process of textile production, textile tension equipment, as an important executing component of textile machinery, plays a key role in generating tension and forming loops of fabrics. Currently, the mainstream computerized flat knitting machine tension equipment mainly uses rollers. However, while generating tension, the rollers equalize the tensions of the fabrics on the front and rear needle beds. With the gradual maturity of the integrated molding technology, the need for independent control of the tensions of the fabrics on the front and rear needle beds has become increasingly prominent. The traditional roller tension equipment can no longer meet this need. Summary of the Invention

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides a textile machinery tension rake device with controllable tension, which can be more suitable for the cooperation of the integrated molding process and effectively complete the control of the independent tension of the needle bed.

[0004] The present invention provides a textile machinery tension rake device with controllable tension, which is characterized in that it includes a tension mechanism. The tension mechanism includes a rake body part, a check part, and a chamber. The rake body part is slidably arranged in the chamber. The check part is connected to the rake body part through an elastic member. The check part slides inside the chamber. A plurality of the tension mechanisms are provided and arranged horizontally and evenly.

[0005] A preferred technical solution further includes a pressure control mechanism. The pressure control mechanism includes fixed end plates. A rotating shaft is rotatably arranged between the fixed end plates. Inner rings are fixedly arranged at both ends of the rotating shaft. An inner and outer toothed ring is rotatably arranged outside the inner ring. An outer ring is rotatably arranged outside the inner and outer toothed ring. Inner ratchet teeth are fixedly arranged outside the inner ring. Outer ratchet teeth are arranged inside the outer ring. The inner ratchet teeth and the outer ratchet teeth cooperate with the inner teeth and the outer teeth of the inner and outer toothed ring respectively, so that when the inner ring rotates, the inner and outer toothed ring can only rotate in one direction inside the outer ring. An inner gear is fixedly arranged at the end of the rotating shaft and corresponding to the inside of the inner and outer toothed ring. An outer gear meshes between the inner gear and the inner teeth of the inner and outer toothed ring. A pressure shaft is fixedly arranged between the outer gears at both ends of the rotating shaft. The pressure shaft cooperates with the check part.

[0006] Preferred technical solution: One end of the chamber is a circular groove, and the other end of the chamber is a tangent groove. The tangent groove is in the tangent direction upward from the circular groove. The rake body part includes several arc-shaped blocks and square blocks. The arc-shaped blocks are hinged to each other in sequence at the head and tail. The square block is hinged to the outermost side of the sequentially hinged arc-shaped blocks. A rake hook is arranged on the outer end side of the square block. The square block slides up and down in the tangent groove, and the arc-shaped blocks slide between the circular groove and the tangent groove. A pressure block is fixedly arranged on the inner end side of the arc-shaped block (1101) through an arc-shaped strip.

[0007] Preferred technical solution: The check part includes a check slider slidably arranged in the circular groove. A check ratchet is hinged on the check slider. Trapezoidal teeth are uniformly arranged on the inner side of the circular groove. The check ratchet cooperates with the trapezoidal teeth.

[0008] Preferred technical solution: The arc-shaped strip is slidably connected with the check slider. The pressure block is located on the inner end side of the check slider. A pressure tooth is hinged on the outer end of the check slider. A guide rod is arranged on the pressure tooth. An arc-shaped guide groove is arranged at the inner end of the arc-shaped block. The guide rod is slidably arranged in the arc-shaped guide groove. An elastic member is connected to the pressure block and gives the pressure block a force towards the inner end side. The pressure shaft cooperates with the pressure tooth. When the pressure shaft revolves around the axis of the rotating shaft, the pressure shaft drives the check slider to slide in the circular groove by pushing the pressure tooth.

[0009] Preferred technical solution: The elastic member is a compression spring, and the elastic member is fixedly arranged between the pressure block and the stop slider.

[0010] Preferred technical solution: An arc-shaped guide rod is fixedly arranged on the inner end side of the check slider. The arc-shaped guide rod is slidably connected with the pressure block. The elastic member is located outside the arc-shaped guide rod.

[0011] Preferred technical solution: The pressure shaft is flat.

[0012] The preferred technical solution further includes a rising selection mechanism. The rising selection mechanism includes swing arms fixedly arranged at both ends of a rotating shaft. A rotating shaft is rotatably arranged between the inner sides of the outer ends of the swing arms. A pushing tooth group corresponding to each chamber is arranged on the rotating shaft. The pushing tooth group includes a plurality of pushing teeth. The pushing teeth of each pushing tooth group are evenly arranged around the rotating shaft in a circumferential manner. Rotating teeth are respectively arranged at both ends of the rotating shaft. The rotating teeth are evenly arranged around the rotating shaft in a circumferential manner. A positioning member cooperating with the rotating teeth is arranged on the swing arm. A plurality of stoppers are arranged on the fixed end plate around the rotating shaft. The stoppers have a rotating angle on the fixed end plate, and a return spring is arranged at the rotational connection of the stopper and the fixed end plate; when the check part slides towards the inner side of the chamber, the rotating shaft drives the rotating teeth to revolve around the rotating shaft through the swing arm. When the rotating teeth touch the stoppers, the rotating teeth rotate around the rotating shaft by a certain angle. Arc-shaped chutes are respectively arranged on the outer sides of the chambers corresponding to the positions of the pushing tooth groups. The pushing teeth of the pushing tooth group close to the chamber extend into the chamber through the arc-shaped chutes. The pushing teeth extending into the chamber are slidably connected with the arc-shaped chutes.

[0013] In the preferred technical solution, the positioning member is a positioning plate, and the positioning member is rotatably arranged on the swing arm.

[0014] The technical effects and advantages of the present invention:

[0015] The pulling force is accurately controlled and adjustable

[0016] 1. Pressure dynamic regulation: Through the coordinated action of the rotating shaft, the inner and outer toothed rings and the pressing shaft in the pressure control mechanism, accurate control of the pressure of the pressing shaft on the check part can be realized. When the rotating shaft rotates, the pressing shaft pushes the check slider through the pressing teeth, and the elastic member further provides pressure for the rake body. Moreover, the self-rotation of the pressing shaft can adjust its relative angle with the rotating shaft, so as to finely adjust the pulling force size to adapt to the tension requirements of different fabrics.

[0017] The pulling force is continuously stable: The elastic action of the elastic member 14 enables the rake body to automatically adjust its position when the fabric length changes. At the same time, the engagement of the check ratchet teeth and the trapezoidal teeth prevents the pulling force from retreating, ensuring the continuity and stability of the pulling force output.

[0018] 2. Multi-rake coordination and independent control

[0019] Horizontal arrangement design: A plurality of pulling force mechanisms are evenly arranged horizontally, and a plurality of rake bodies can be controlled simultaneously, improving the textile efficiency.

[0020] Selective rising control: Through the rising selection mechanism, a specific rake can be accurately selected for the rising operation. The pushing tooth group on the rotating shaft cooperates with the stopper, combined with the locking function of the positioning member, to realize the disengagement of the pushing teeth from the check ratchet teeth of the target rake and the pushing of the rake body, meeting the requirements for the independent control of the rake in the one-piece forming process.

[0021] 3. Adaptability and Process Compatibility

[0022] Wide adjustable range of pulling force: Through the cooperation of the pressure control mechanism and the check part, the pulling force can be linearly adjusted with the position of the check slider, meeting the requirements of different fabric tensions.

[0023] Support for one-piece forming process: The rising selection mechanism allows independent control of the rising of the rake body, highly fitting the complex structure weaving requirements in the one-piece forming process and improving the process flexibility. Description of the Drawings

[0024] Figure 1 It is a schematic structural diagram of the present invention;

[0025] Figure 2 It is a schematic structural diagram of the present invention after removing part of the pulling force mechanism;

[0026] Figure 3 It is a schematic structural diagram of the cooperation between the rake body part and the chamber of the present invention;

[0027] Figure 4 It is a schematic structural diagram of the cooperation between the pressure control mechanism and the rising selection mechanism of the present invention;

[0028] Figure 5 It is a schematic structural diagram of the cooperation of the selection mechanism of the present invention;

[0029] Figure 6 It is a schematic structural diagram of the cooperation between the rotating shaft, the pushing tooth group and the rotating tooth of the present invention;

[0030] Figure 7 It is a schematic structural diagram of the cooperation between the check part and the rake body part of the present invention;

[0031] As shown in: 1 - pulling force mechanism; 2 - pressure control mechanism; 3 - rising selection mechanism; 11 - rake body part; 12 - check part; 13 - chamber; 14 - elastic part; 21 - fixed end plate; 22 - rotating shaft; 23 - inner ring; 24 - inner and outer toothed ring; 25 - outer ring; 26 - inner ratchet tooth; 27 - outer ratchet tooth; 28 - inner gear; 29 - outer gear; 210 - pressing shaft; 31 - swing arm; 32 - rotating shaft; 33 - pushing tooth group; 34 - rotating tooth; 35 - positioning part; 36 - stop block; 1101 - arc block; 1102 - square block; 1103 - rake hook; 1104 - pressure block; 1105 - arc bar; 1201 - check slider; 1202 - check ratchet tooth; 1203 - pressing tooth; 1205 - guide rod; 1206 - arc guide groove; 1208 - arc guide rod; 1301 - circular groove; 1302 - tangent groove; 1303 - trapezoidal tooth; 1304 - arc chute; 3301 - pushing tooth; Detailed Embodiment

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0033] As Figure 1 , Figure 2 and Figure 3 shown, a textile machinery tension rake device with controllable tension includes a tension mechanism 1. The tension mechanism 1 includes a rake body part 11, a check part 12 and a chamber 13. The rake body part 11 is slidably arranged in the chamber 13 and is used to actually act on the fabric to provide tension. The check part 12 is connected to the rake body part 11 through an elastic member 14, and the check part 12 slides inside the chamber 13 to prevent the rake body part 11 from retreating under the action of tension. A plurality of tension mechanisms 1 are arranged and evenly arranged horizontally, which is convenient for simultaneously controlling multiple rakes.

[0034] As Figure 2 and Figure 4 shown, it further includes a pressure control mechanism 2, which is used to apply pressure to the check part 12 and control and adjust the magnitude of the applied pressure. The pressure control mechanism 2 includes a fixed end plate 21. A rotating shaft 22 is rotatably arranged between the fixed end plates 21. Inner rings 23 are fixedly arranged at both ends of the rotating shaft 22. An inner and outer toothed ring 24 is rotatably arranged outside the inner ring 23. An outer ring 25 is rotatably arranged outside the inner and outer toothed ring 24. Inner ratchet teeth 26 are fixedly arranged outside the inner ring 23. Outer ratchet teeth 27 are arranged inside the outer ring 25. The inner ratchet teeth 26 and the outer ratchet teeth 27 are respectively matched with the inner teeth and outer teeth of the inner and outer toothed ring 24, so that when the inner ring 23 rotates, the inner and outer toothed ring 24 can only rotate in one direction inside the outer ring 25. Inner gears 28 are fixedly arranged at the ends of the rotating shaft 22 and corresponding to the inside of the inner and outer toothed ring 24. External gears 29 are meshed between the inner gears 28 and the inner teeth of the inner and outer toothed ring 24. A pressure shaft 210 is fixedly arranged between the external gears 29 at both ends of the rotating shaft 22, and the pressure shaft 210 is matched with the check part 12.

[0035] As Figure 3As shown, one end of the chamber 13 is a circular groove 1301, and the other end of the chamber 13 is a tangent groove 1302. The tangent groove 1302 is in the upward tangent direction of the circular groove 1301. The rake body part 11 includes a plurality of arc-shaped blocks 1101 and square blocks 1102. The arc-shaped blocks 1101 are hinged end to end in sequence, and the square block 1102 is hinged to the outermost side of the sequentially hinged arc-shaped blocks 1101. A rake hook 1103 is arranged on the outer end side of the square block 1102. The square block 1102 slides up and down in the tangent groove 1302, and the arc-shaped blocks 1101 slide between the circular groove 1301 and the tangent groove 1302. A pressure block 1104 is fixedly arranged on the inner end side of the arc-shaped block 1101 through an arc-shaped strip 1105.

[0036] As Figure 3 shown, the check part 12 includes a check slider 1201 slidably arranged in the circular groove 1301. A check ratchet 1202 is hinged on the check slider 1201. Trapezoidal teeth 1303 are uniformly arranged on the inner side of the circular groove 1301, and the check ratchet 1202 is matched with the trapezoidal teeth 1303.

[0037] As Figure 3 、 Figure 4 and Figure 7 shown, the arc-shaped strip 1105 is slidably connected with the check slider 1201. The pressure block 1104 is located on the inner end side of the check slider 1201. A pressure tooth 1203 is hinged on the outer end of the check slider 1201. A guide rod 1205 is arranged on the pressure tooth 1203. An arc-shaped guide groove 1206 is arranged at the inner end of the arc-shaped block 1101. The guide rod 1205 is slidably arranged in the arc-shaped guide groove 1206. An elastic member 14 is connected to the pressure block 1104 and gives the pressure block 1104 a force towards the inner end side. The pressure shaft 210 cooperates with the pressure tooth 1203. When the pressure shaft 210 revolves around the axis of the rotating shaft 22, the pressure shaft 210 drives the check slider 1201 to slide in the circular groove 1301 by pushing the pressure tooth 1203. The elastic member 14 is a compression spring, and the elastic member 14 is fixedly arranged between the pressure block 1104 and the check slider 1201. An arc-shaped guide rod 1208 is fixedly arranged on the inner end side of the check slider 1201. The arc-shaped guide rod 1208 is slidably connected with the pressure block 1104, and the elastic member 14 is located outside the arc-shaped guide rod 1208. The pressure shaft 210 is flat.

[0038] As Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 and Figure 6As shown in the figure, it further includes a lifting selection mechanism 3. The lifting selection mechanism 3 includes swing arms 31 fixedly arranged at both ends of the rotating shaft 22. A rotating shaft 32 is rotatably arranged between the inner sides of the outer ends of the swing arms 31. A pushing tooth group 33 corresponding to the chambers 13 one by one is arranged on the rotating shaft 32. The pushing tooth group 33 includes a plurality of pushing teeth 3301. The pushing teeth 3301 of each pushing tooth group 33 are evenly arranged around the rotating shaft 32 in a surrounding manner. Rotating teeth 34 are respectively arranged at both ends of the rotating shaft 32. The rotating teeth 34 are evenly arranged around the rotating shaft 32 in a surrounding manner. A positioning member 35 matching with the rotating teeth 34 is arranged on the swing arm 31. A plurality of stoppers 36 are arranged on the fixed end plate 21 and surround the rotating shaft 22. The stoppers 36 have a rotation angle on the fixed end plate 21, and a return spring is arranged at the rotation connection of the stopper 36 and the fixed end plate 21; when the check part 12 slides towards the inner side of the chamber 13, the rotating shaft 22 drives the rotating teeth 34 to revolve around the rotating shaft 22 through the swing arm 31. When the rotating teeth 34 touch the stopper 36, the rotating teeth 34 rotate around the rotating shaft 32 by a certain angle. Arc-shaped chutes 1304 are respectively arranged on the outer side of the chamber 13 and at the positions corresponding to the pushing tooth groups 33. The pushing teeth 3301 of the pushing tooth group 33 close to the chamber 13 will extend into the interior of the chamber 13 through the arc-shaped chutes 1304. The pushing teeth 3301 extending into the interior of the chamber 13 are slidably connected with the arc-shaped chutes 1304. The positioning member 35 is a positioning plate, and the positioning member 35 is rotatably arranged on the swing arm 31.

[0039] As Figures 1 to 7 shown:

[0040] The working principle of the pulling force mechanism of the present invention:

[0041] Under the action of an external force, specifically under the movement of the pressure shaft 210 of the pressure control mechanism 2, the check part 12 slides towards the inner side of the chamber 13, driving the rake body part 11 to move downward in the tangent groove 1302 of the chamber 13, thereby providing a pulling force for the rake body part 11. When it is necessary to maintain the pulling force, the check ratchet 1202 and the trapezoidal tooth 1303 are engaged with each other to prevent the rake body part 11 from retracting. When the check ratchet 1202 and the trapezoidal tooth 1303 are no longer engaged and the check ratchet 1202 is separated from the trapezoidal tooth 1303, the pulling force is released. It should be noted that the cooperation mode of the ratchet 1202 of the check part 12 and the trapezoidal tooth 1303 in the present invention is only one of the implementation modes of the check part 12. The check part 12 can also adopt other structures to prevent the rake body part 11 from rebounding. For example, the pulling force can be maintained between the check part 12 and the chamber 13 through friction and pressure, or the principle of an overrunning clutch can be used to also achieve the function of preventing the rake body part 11 from rebounding. These can be used as other embodiments of the present invention. Through the engagement position of the ratchet 1202 on the trapezoidal tooth 1303, the magnitude of the pulling force can be known. The closer the check part 12 is to the inner side of the circular groove 1301, the greater the force.

[0042] Working principle of the pressure control mechanism:

[0043] The pressure control mechanism 2 is a mechanism that provides pressure and regulates the force for the check part 12 by controlling the movement of the pressure shaft 210. Specifically, when the rotating shaft 22 and the inner ring 23 rotate and the outer ring 25 remains fixed, the inner and outer toothed rings 24 can only rotate in one direction (clockwise rotation) under the action of the outer ratchet teeth 27. When the inner and outer toothed rings 24 and the inner ring 23 rotate simultaneously, they can drive the pressure shaft 210 to revolve around the rotating shaft 22, and the pressure shaft 210 will not rotate around its own axis. Therefore, the pressure shaft 210 is flat and the relative spatial angle with the rotating shaft 22 remains unchanged. The pressure shaft 210 can provide pressure for the check part 12, causing the check part 12 to pull the rake body part 11. Specifically, the pressure shaft 210 presses the pressure tooth 1203, the pressure tooth 1203 presses the check slider 1201, the check slider 1201 compresses the elastic member 14, the inner end of the elastic member 14 presses the pressure block 1104, and the pressure block 1104 provides the pressure for the inward movement of the rake body part 11, thereby providing a pulling force for the rake body part 11. When the pressure shaft 210 presses the pressure tooth 1203 to move, due to the action of the arc-shaped guide groove 1206, the pressure shaft 210 will cross over the pressure tooth 1203 and disengage from it, and the check ratchet tooth 1202 will cooperate with the trapezoidal tooth 1303 to prevent the check slider 1201 from rebounding; during the fabric weaving process, the length of the woven fabric will increase, and the rake body part 11 will move downward under the action of the elastic member 14 and disengage from the pressure tooth 1203. After rotating one circle, the pressure shaft 210 will press the pressure tooth 1203 again and continue the above actions. Such a cycle can continuously provide a pulling force for the rake body part 11. When the inner and outer toothed rings 24 do not rotate and the rotating shaft 22 rotates (counterclockwise rotation), the rotating shaft 22 can drive the outer gear 29 to rotate through the inner gear 28, thereby driving the pressure shaft 210 to rotate around its own axis and changing the relative spatial angle between the flat pressure shaft 210 and the rotating shaft 22. The self-rotation of the pressure shaft 210 can generate a certain push on the pressure tooth 1203, thereby adjusting the pulling force of the check part 12 on the rake body part 11.

[0044] Working principle of the rising selection mechanism:

[0045] When it is necessary to reselect which rake body parts 11 arranged side by side rise, the rotating shaft 22 rotates (counterclockwise), thereby driving the rotation of the swing arm 31, and then driving the rotating tooth 34 to rotate together with the swing arm 31. The rotating tooth 34 will touch the stopper 36 on the rotation path. Every time it encounters a stopper 36, the rotating tooth 34 will rotate a certain angle around the rotating shaft 32. When the rotating tooth 34 rotates a certain angle around the rotating shaft 32, the pushing tooth group 33 will also rotate around the rotating shaft 32, and the pushing teeth 3301 of the pushing tooth group 33 will have different arrangement forms, that is, the pushing teeth 3301 of different pushing tooth groups 33 will extend into the interior of the chamber 13. In this way, the rotating tooth 34 can control the pushing teeth 3301 of different pushing tooth groups 33 to enter the interior of the chamber 13 through the number of its own rotation angles. After selecting the pushing teeth 3301 of the pushing tooth group 33 to enter the chamber 13, the positioning member 35 rotates a certain angle so that the positioning member 35 abuts against the rotating tooth 34 to prevent the rotating tooth 34 from moving again. Then the rotating shaft 22 starts to reverse (clockwise). Since the stopper 36 has a rotation angle on the fixed end plate 21, when the fixed rotating tooth 34 touches the stopper 36 again on the return path, the stopper 36 will rotate a certain angle, and the fixed rotating tooth 34 will pass by the stopper 36 and enter the interior of the chamber 13. The pushing teeth 3301 respectively push open the check ratchet teeth 1202, so that the check ratchet teeth 1202 are disengaged from the trapezoidal teeth 1303, and the check part 12 stops checking. The pushing teeth 3301 simultaneously push the corresponding rake body parts 11, so that the outer end sides of the rake body parts 11 rise.

[0046] The present invention can control the pulling force of the front and rear needle beds, and can effectively control the magnitude of the pulling force. Moreover, different rake body parts 11 can be selected to rise, which is more suitable for the cooperation of the one-piece forming process and can more effectively meet the need for independent pulling force control of the needle bed. The check part 12 of the rake body part 11 slides in the chamber 13 under the action of the pressure control mechanism 2. The sliding driving elastic member 14 of the check part 12 of the rake body part 11 applies an inward movement pressure to the inner end side of the rake body part 11. The pressing shaft 210 controls the sliding distance of the check part 12 by pushing the depth of the pressing tooth 1203 to control the pulling force. When the external force of the movement of the pressing shaft 210 of the pressure control mechanism 2 disappears, the check ratchet teeth 1202 and the trapezoidal teeth 1303 are engaged with each other to prevent the check part 12 from retracting, realizing the pulling force maintenance. When the fabric descends, the downward pulling force of the check part 12 on the rake body part 11 decreases, and the pressure control mechanism 2 does work again in such a cycle. Pulling the fabric down by the rake to a specified position and then selecting the required rake body part 11 to rise by the rising selection mechanism 3 is a cycle.

[0047] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A textile machinery tension rake device with controllable tension, characterized in that, It includes a pulling mechanism (1), and the pulling mechanism (1) includes a rake body part (11), a check part (12) and a chamber (13). The rake body part (11) is slidably arranged in the chamber (13). The check part (12) is connected to the rake body part (11) through an elastic member (14). The check part (12) slides inside the chamber (13). A number of the pulling mechanisms (1) are provided and arranged horizontally and evenly.

2. The tensile rake device of a textile machine with controllable tensile force according to claim 1, characterized in that, It further includes a pressure control mechanism (2). The pressure control mechanism (2) includes fixed end plates (21). A rotating shaft (22) is rotatably arranged between the fixed end plates (21). Inner rings (23) are fixedly arranged at both ends of the rotating shaft (22). An inner and outer toothed ring (24) is rotatably arranged on the outer side of the inner ring (23). An outer ring (25) is rotatably arranged on the outer side of the inner and outer toothed ring (24). Inner ratchet teeth (26) are fixedly arranged on the outer side of the inner ring (23). Outer ratchet teeth (27) are arranged on the inner side of the outer ring (25). The inner ratchet teeth (26) and the outer ratchet teeth (27) are respectively engaged with the inner teeth and the outer teeth of the inner and outer toothed ring (24), so that when the inner ring (23) rotates, the inner and outer toothed ring (24) can only rotate in one direction on the inner side of the outer ring (25). An inner gear (28) is fixedly arranged at the end of the rotating shaft (22) corresponding to the inner side of the inner and outer toothed ring (24). An outer gear (29) is meshed between the inner gear (28) and the inner teeth of the inner and outer toothed ring (24). A pressing shaft (210) is fixedly arranged between the outer gears (29) at both ends of the rotating shaft (22). The pressing shaft (210) is engaged with the check part (12).

3. A tensile rake device for textile machinery with controllable tensile force according to claim 1, characterized in that, One end of the chamber (13) is a circular groove (1301), and the other end of the chamber (13) is a tangent groove (1302). The tangent groove (1302) is in the tangent direction upward of the circular groove (1301). The rake body part (11) includes a number of arc-shaped blocks (1101) and square blocks (1102). The arc-shaped blocks (1101) are hinged end to end in sequence. The square block (1102) is hinged to the outermost side of the sequentially hinged arc-shaped blocks (1101). A rake hook (1103) is arranged on the outer end side of the square block (1102). The square block (1102) slides up and down in the tangent groove (1302). The arc-shaped blocks (1101) slide between the circular groove (1301) and the tangent groove (1302). A pressure block (1104) is fixedly arranged on the inner end side of the arc-shaped block (1101) through an arc-shaped strip (1105).

4. A textile machinery tension rake device with controllable tension according to claim 3, characterized in that, The check part (12) includes a check slider (1201) slidably arranged in the circular groove (1301). A check ratchet tooth (1202) is hinged on the check slider (1201). Trapezoidal teeth (1303) are evenly arranged on the inner side of the circular groove (1301). The check ratchet tooth (1202) is engaged with the trapezoidal teeth (1303).

5. A textile machinery tension rake device with controllable tension according to claim 4, characterized in that, The arc-shaped bar (1105) is slidably connected to the check slider (1201). The pressure block (1104) is located on the inner end side of the check slider (1201). A pressing tooth (1203) is hinged to the outer end of the check slider (1201). A guide rod (1205) is arranged on the pressing tooth (1203). An arc-shaped guide groove (1206) is arranged at the inner end of the arc-shaped block (1101). The guide rod (1205) is slidably arranged in the arc-shaped guide groove (1206). The elastic member (14) is connected to the pressure block (1104) and applies a force to the pressure block (1104) towards the inner end side. The pressing shaft (210) cooperates with the pressing tooth (1203). When the pressing shaft (210) revolves around the axis of the rotating shaft (22), the pressing shaft (210) drives the check slider (1201) to slide in the circular groove (1301) by pushing the pressing tooth (1203).

6. The pulling rake device of a textile machine with controllable pulling force according to claim 4, characterized in that The elastic member (14) is a compression spring. The elastic member (14) is fixedly arranged between the pressure block (1104) and the stop slider (1201).

7. The pulling rake device of a textile machine with controllable pulling force according to claim 5, characterized in that, An arc-shaped guide rod (1208) is fixedly arranged on the inner end side of the check slider (1201). The arc-shaped guide rod (1208) is slidably connected to the pressure block (1104). The elastic member (14) is located outside the arc-shaped guide rod (1208).

8. The textile machinery tension rake device with controllable tension according to claim 2, characterized in that, The pressing shaft (210) is flat-shaped.

9. A textile machinery tension rake device with controllable tension according to any one of claims 3-8, characterized in that Further included is a lifting selection mechanism (3). The lifting selection mechanism (3) includes swing arms (31) fixedly arranged at both ends of a rotating shaft (210). A rotating shaft (32) is rotatably arranged between the inner sides of the outer ends of the swing arms (31). A pushing tooth group (33) corresponding to each chamber (13) is arranged on the rotating shaft (32). The pushing tooth group (33) includes a plurality of pushing teeth (3301). The pushing teeth (3301) of each pushing tooth group (33) are evenly arranged around the rotating shaft (32). Rotating teeth (34) are respectively arranged at both ends of the rotating shaft (32). The rotating teeth (34) are evenly arranged around the rotating shaft (32). A positioning member (35) cooperating with the rotating teeth (34) is arranged on the swing arm (31). A plurality of stoppers (36) are arranged on the fixed end plate (21) around the rotating shaft (22). The stoppers (36) have a rotation angle on the fixed end plate (21), and a return spring is arranged at the rotation connection of the stopper (36) and the fixed end plate (21). When the check part (12) slides towards the inner side of the chamber (13), the rotating shaft (22) drives the rotating teeth (34) to revolve around the rotating shaft (22) through the swing arm (31). When the rotating teeth (34) touch the stoppers (36), the rotating teeth (34) rotate by a certain angle around the rotating shaft (32). Arc-shaped chutes (1304) are respectively arranged on the outer sides of the chambers (13) at positions corresponding to the pushing tooth groups (33). The pushing teeth (3301) of the pushing tooth group (33) close to the chamber (13) extend into the chamber (13) through the arc-shaped chutes (1304). The pushing teeth (3301) extending into the chamber (13) are slidably connected with the arc-shaped chutes (1304).

10. The textile machinery tension rake device with controllable tension according to claim 9, characterized in that, The positioning member (35) is a positioning plate, and the positioning member (35) is rotatably arranged on the swing arm (31).

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