A textile machinery pull rake drive device with controllable tension

Abstract

This utility model provides a controllable pulling force drive device for a textile machinery pull rake, relating to the field of textile machinery technology. It includes a drive mechanism comprising a fixed disk with a fixed chamber inside. A drive turntable is rotatably mounted on the fixed disk within the fixed chamber. A rising shaft output port and a pressure shaft output port are located on the drive turntable near its outer edge. A rising shaft is rotatably mounted at the rising shaft output port. A rotating disk is hinged to the drive turntable near the pressure shaft output port. A rotating gear is rotatably mounted on the rotating disk. A pressure shaft is fixedly mounted inside the rotating gear at the pressure shaft output port. The pressure shaft has pressure teeth. Multiple sets of pushing teeth are mounted on the rising shaft. This utility model enables selective lifting and lowering of some rakes, allowing control of the rake's lifting and lowering during operation and adjustment of the pressure tooth angle, significantly improving space utilization and achieving automated operation.

Description

Technical Field

[0001] This utility model relates to the field of textile machinery technology, specifically a textile machinery pull rake drive device with controllable pulling force. Background Technology

[0002] In the textile production process, tensioning equipment, as a crucial component of textile machinery, plays a key role in generating tension and forming loops in the fabric. Currently, mainstream computerized flat knitting machines primarily use rollers, and the rakes are uniformly raised and lowered, preventing the selection of individual rakes for lifting. This results in a relatively simple operating mode, making it impossible to dynamically adjust the rake combination based on different yarn characteristics (such as thickness and elasticity) or textile processes. Alternatively, frequent machine stops for manual adjustments are necessary, reducing production efficiency. Furthermore, the large size of the tensioning rakes and the numerous actions they need to perform contribute to the machine's large footprint. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, this utility model provides a textile machinery pull rake drive device with controllable pulling force, which solves the problems of large space occupation and single function of existing machines.

[0004] This utility model provides a textile machinery pull rake drive device with controllable pulling force, characterized in that it includes a drive mechanism, the drive mechanism including a fixed disk, a fixed chamber provided on the inner side of the fixed disk, a drive turntable rotatably disposed on the fixed disk and located inside the fixed chamber, a rising shaft output port and a pressure shaft output port provided on the drive turntable near the outer side, a rising shaft rotatably disposed at the rising shaft output port, a rotating disk hinged on the drive turntable near the pressure shaft output port, a rotating gear rotatably disposed on the rotating disk, a pressure shaft fixedly disposed on the inner side of the rotating gear and located at the pressure shaft output port, a pressure shaft provided with pressure teeth, and a plurality of sets of pushing teeth provided on the rising shaft.

[0005] In a preferred embodiment, a fixing ring is fixedly disposed on the inner side of the fixed disk and on the outer side of the drive turntable. Multiple rotating teeth are evenly disposed on the end side of the rising shaft. Multiple sets of stops are hinged to the inner side of the fixing ring. A stop return spring is disposed between the stop and the fixing ring. The rotating teeth cooperate with the stop. A positioning block is hinged to the drive turntable near the output port of the rising shaft. A positioning block return spring is disposed at the connection between the positioning block and the drive turntable.

[0006] In a preferred embodiment, multiple sets of ratchet teeth are evenly hinged on the outer side of the rotating disk and corresponding to the rotating gear. A ratchet return spring is provided at the connection between the ratchet teeth and the rotating disk. The ratchet teeth cooperate with the teeth of the rotating gear. A drive rack is provided in an arc shape at the junction of the rotating disk and the fixed disk. The drive rack meshes with the rotating gear. A drive rack stop is provided on the inner side of the fixed disk.

[0007] In a preferred embodiment, a rotary gear return spring is provided at the connection between the rotary gear and the rotary disk; a ratchet opening and closing strip is slidably provided at the junction of the rotary disk and the outer side of the rotary gear; a toothed groove is provided on the outer side of the rotary gear; a sliding tooth is provided on the ratchet opening and closing strip, the sliding tooth slides in the toothed groove; and a ratchet opening and closing part is provided on one side of the ratchet opening and closing strip, the ratchet opening and closing part engaging with the ratchet.

[0008] In a preferred embodiment, a variable-pitch slide shaft is fixedly disposed on the outer side of the rotating disk, and a variable-pitch slide groove is disposed on the inner side of the fixed disk. The variable-pitch slide shaft is slidably disposed inside the variable-pitch slide groove. The variable-pitch slide groove includes an inner arc-shaped slide groove and an outer arc-shaped slide groove. The inner arc-shaped slide groove is located inside the outer arc-shaped slide groove. A positioning convex arc is disposed on the inner side of the fixed disk and between the end sides of the inner and outer arc-shaped slide grooves. The inner arc-shaped slide grooves at both ends of the positioning convex arc communicate with the outer arc-shaped slide grooves. A rotating disk torsion spring is disposed at the connection between the rotating disk and the drive rotating disk.

[0009] In a preferred embodiment, the height of the bottom side of the inner arc-shaped groove end is higher than the height of the bottom side of the outer arc-shaped groove at its junction, and the height of the bottom side of the outer arc-shaped groove end is higher than the height of the bottom side of the inner arc-shaped groove at its junction.

[0010] In a preferred embodiment, the drive mechanism comprises two sets arranged symmetrically, the two sets of drive mechanisms sharing a rising shaft and a pressure shaft, and a drive shaft fixedly connecting the drive turntables of the two sets of drive mechanisms, the drive shaft having openings corresponding to the output ports of the rising shaft and the pressure shaft.

[0011] In a preferred embodiment, a power gear is fixedly installed on the outer end of the drive turntable and outside the fixed disk, and the power gear is connected to the power motor for transmission.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] To achieve selective lifting of some rakes

[0014] By employing a mechanism of multiple sets of push teeth and stops on the rising shaft, the rotating teeth are blocked by the stops, causing the rising shaft to rotate, thus switching between different combinations of push teeth. This design allows for independent control of lifting and lowering for specific rakes, overcoming the limitations of traditional equipment's "uniform lifting and lowering" and adapting to different yarn characteristics (such as elasticity and thickness) and process requirements.

[0015] Control the raising and lowering of the rake and adjust the angle of the pressing teeth during operation.

[0016] Variable pitch adjustment: The rotary disc slides in the variable pitch groove through the variable pitch sliding shaft, changing the distance between the pressure shaft and the center of the drive turntable, thereby dynamically adjusting the effect of the pressure teeth on the rake and achieving precise control of the rake's lifting and lowering movement.

[0017] Angle adjustment: The drive rack meshes with the rotating gear, and the ratchet locks the gear angle, allowing the tilt angle of the pressing teeth to be adjusted as needed. The tilt angle of the pressing teeth can adjust the pull of the rake on the fabric.

[0018] Space utilization has been significantly improved.

[0019] The symmetrical dual-drive mechanism shares the rising shaft and pressure shaft, and combined with the compact layout of the variable pitch slide (inner / outer ring arc slide and positioning convex arc), it integrates functions such as lifting selection, tension adjustment and angle control into a single drive device, which greatly reduces the mechanical space occupied.

[0020] Automated operation

[0021] Automatic mode switching: The segmented design of the variable-pitch chute (inner ring a / b segments, outer ring c / d segments) guides the movement trajectory of the variable-pitch slide shaft. Driving the turntable to rotate forward and reverse automatically switches between working modes such as "lifting selection," "tension adjustment," and "reset," without manual intervention. Through mechanical linkage (stops, positioning blocks, ratchet teeth, etc.), fully automated rake combination selection and parameter adjustment are achieved, avoiding frequent shutdowns for manual adjustment and significantly improving production flexibility and efficiency. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the structure of this utility model after removing one end of the drive mechanism;

[0024] Figure 3 This utility model Figure 2 Schematic diagram of the structure after removing the drive shaft;

[0025] Figure 4 This utility model Figure 3 Schematic diagram of the structure after removing the ascending axis and pressure axis;

[0026] Figure 5 This utility model Figure 4 Schematic diagram of the structure after removing the retaining ring;

[0027] Figure 6 This utility model Figure 5 Schematic diagram of the structure after removing the drive turntable;

[0028] Figure 7 This utility model Figure 6 Schematic diagram of the structure after removing the fixing plate;

[0029] Figure 8 This utility model Figure 7 Schematic diagram of the structure after removing the rotating disk;

[0030] Figure 9 This utility model Figure 8 Schematic diagram of the structure after removing the rotating gear;

[0031] Figure 10 This is a schematic diagram of the fixed disk structure of this utility model;

[0032] Figure 11 This is a schematic diagram of the variable pitch slide structure of this utility model;

[0033] In the diagram: 1-Drive mechanism; 2-Drive shaft; 101-Fixed disc; 102-Power gear; 103-Fixed chamber; 104-Drive turntable; 105-Rising shaft output port; 106-Pressure shaft output port; 107-Rising shaft; 108-Rotating disc; 109-Rotating gear; 1010-Pressure shaft; 1011-Pressure gear; 1012-Push gear; 1013-Fixed ring; 1014-Rotating gear; 1015-Stop; 1016-Stop return spring; 1017-Positioning block; 1018-Positioning block Return spring; 1019-Ratchet; 1020-Ratchet return spring; 1021-Drive rack; 1022-Drive rack stop; 1023-Rotating gear return spring; 1024-Ratchet opening / closing bar; 1025-Toothed groove; 1026-Sliding tooth; 1027-Ratchet opening / closing part; 1028-Variable pitch slide shaft; 1029-Variable pitch groove; 1030-Rotating disk torsion spring; 102901-Inner ring arc groove; 102902-Outer ring arc groove; 102903-Positioning convex arc; 201-Opening. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] like Figures 1 to 5 As shown, a textile machinery pull rake drive device with controllable pulling force includes a drive mechanism 1. The drive mechanism 1 includes a fixed disk 101, a fixed chamber 103 is provided on the inner side of the fixed disk 101, a drive turntable 104 is rotatably arranged on the fixed disk 101 and located inside the fixed chamber 103, a rising shaft output port 105 and a pressure shaft output port 106 are provided on the drive turntable 104 near the outer side, a rising shaft 107 is rotatably arranged at the rising shaft output port 105, a rotating disk 108 is hinged on the drive turntable 104 near the pressure shaft output port 106, a rotating gear 109 is rotatably arranged on the rotating disk 108, a pressure shaft 1010 is fixedly arranged on the inner side of the rotating gear 109 and located at the pressure shaft output port 106, a pressure tooth 1011 is provided on the pressure shaft 1010, and multiple sets of pushing teeth 1012 are provided on the rising shaft 107. When the drive turntable 104 rotates counterclockwise, it drives the pressure shaft 1010 and the rising shaft 107 to revolve around the drive turntable 104. During the downward movement of the pressure shaft 1010, the pressure teeth 1011 on the pressure shaft 1010 engage with the textile machinery pulling rake, thereby causing the textile machinery pulling rake to descend. When the drive turntable 104 rotates clockwise, the rising shaft 107 revolves counterclockwise around the drive turntable 104. The push teeth 1012 on the rising shaft 107 engage with the textile machinery pulling rake, thereby pushing and driving the textile machinery pulling rake upward. The rotating disk 108 is hinged to the drive turntable 104. Rotation at the hinge point adjusts the distance between the center of the pressure shaft 1010 and the drive turntable 104, thus changing the distance between the push teeth 1012 of the pressure shaft 1010 and the textile machinery pulling rake. When the push tooth 1012 drives the textile machinery pull rake to descend, the distance between the pressure shaft 1010 and the center of the drive turntable 104 is large, and the push tooth 1012 can reach the textile machinery pull rake. When the drive turntable 104 rotates clockwise, the distance between the pressure shaft 1010 and the center of the drive turntable 104 is reduced, and the push tooth 1012 cannot reach the textile machinery pull rake. It will not block the textile machinery pull rake, and the push tooth 1012 of the rising shaft 107 can then drive the textile machinery pull rake to rise.

[0036] like Figure 1 and 2 As shown, the drive mechanism 1 includes two sets arranged symmetrically. The two sets of drive mechanisms 1 share a rising shaft 107 and a pressure shaft 1010. A drive shaft 2 is fixedly connected between the drive turntables 104 of the two sets of drive mechanisms 1. The drive shaft 2 is provided with openings 201 corresponding to the output ports 105 of the rising shaft and 106 of the pressure shaft. The overall structure is stable.

[0037] like Figure 1 and 3As shown, a power gear 102 is fixedly installed on the outer end of the drive turntable 104 and outside the fixed plate 101. The power gear 102 is connected to a power motor for driving the drive turntable 104 to rotate in both directions.

[0038] like Figures 1 to 4 As shown, a fixing ring 1013 is fixedly installed on the inner side of the fixed disk 101 and on the outer side of the drive turntable 104. Multiple rotating teeth 1014 are evenly arranged on the end side of the rising shaft 107. Multiple sets of stops 1015 are hinged on the inner side of the fixing ring 1013. A stop return spring 1016 is provided between the stop 1015 and the fixing ring 1013. The rotating teeth 1014 cooperate with the stop 1015. A positioning block 1017 is hinged on the drive turntable 104 near the rising shaft output port 105. A positioning block return spring 1018 is provided at the connection between the positioning block 1017 and the drive turntable 104. When the drive turntable 104 rotates counterclockwise, it drives the rising shaft 107 to revolve counterclockwise around the center of the drive turntable 104. When the end of the rising shaft 107 reaches the stop 1015, the rotating teeth 1014 are blocked by the stop 1015, causing the rising shaft 107 to rotate. Each time the rotating teeth 1014 passes a stop 1015, the rising shaft 107 rotates by a certain angle. The arrangement of the pushing teeth 1012 on the rising shaft 107 that cooperate with the textile machinery pull rake changes. Different combinations of pushing teeth 1012 can be selected to cooperate with the textile machinery pull rake. After the push tooth 1012 engages with the drive tooth, the drive turntable 104 begins to rotate clockwise. Due to the action of the stop block return spring 1016 and the positioning block return spring 1018, when the rotating tooth 1014 rotates clockwise, it encounters the stop block 1015 again. The stop block 1015 will rotate a certain angle, so the rotating tooth 1014 will directly pass over the stop block 1015 without rotating (the positioning block return spring 1018 prevents the rotating tooth 1014 from rotating counterclockwise). After selection, the push tooth 1012 continues to rotate clockwise, which can push the corresponding textile machinery pull rake to rise, thereby achieving the purpose of selecting the textile machinery pull rake to rise.

[0039] like Figure 5 and Figure 6As shown, multiple sets of ratchet teeth 1019 are evenly hinged on the outer side of the rotating disk 108 and corresponding to the rotating gear 109. A ratchet return spring 1020 is provided at the connection between the ratchet teeth 1019 and the rotating disk 108. The ratchet teeth 1019 and the teeth of the rotating gear 109 are engaged. A drive rack 1021 is provided in an arc shape at the junction of the rotating disk 108 and the fixed disk 101. The drive rack 1021 meshes with the rotating gear 109. A drive rack stop block 1022 is provided on the inner side of the fixed disk 101. The drive turntable 104 rotates clockwise, and the turntable 108, together with the drive rack 1021, revolves clockwise around the center of the drive turntable 104. When the drive rack 1021 encounters the drive rack stop 1022, the drive rack 1021 stops rotating. At this time, the drive turntable 104 continues to rotate clockwise. Under the action of the drive turntable 104, the rotating gear 109 will be driven to rotate counterclockwise. The rotation of the rotating gear 109 can adjust the rotation angle of the pressure tooth 1011 on the pressure shaft 1010. After the angle of the pressure tooth 1011 is adjusted to the required angle, the drive turntable 104 starts to rotate counterclockwise. Due to the action of the ratchet 1019, the rotating gear 109 and the pressure shaft 1010 no longer rotate. The drive rack 1021 will slide relative to the turntable 108, thereby achieving the purpose of adjusting the angle of the pressure tooth 1011 on the pressure shaft 1010.

[0040] like Figure 7 , Figure 8 and Figure 9As shown, a rotary gear return spring 1023 is provided at the connection between the rotary gear 109 and the rotary disk 108. A ratchet opening and closing strip 1024 is slidably provided at the junction of the rotary disk 108 and the outer side of the rotary gear 109. A toothed groove 1025 is provided on the outer side of the rotary gear 109. A sliding tooth 1026 is provided on the ratchet opening and closing strip 1024. The sliding tooth 1026 slides in the toothed groove 1025. A ratchet opening and closing part 1027 is provided on one side of the ratchet opening and closing strip 1024. The ratchet opening and closing part 1027 cooperates with the ratchet 1019. When adjusting the angle of the pressing teeth 1011 on the adjusting force shaft 1010, if the drive turntable 104 continues to rotate counterclockwise, the rotating gear 109 will continue to rotate counterclockwise. This, through the engagement of one end of the missing tooth groove 1025 with the sliding tooth portion 1026, will push the ratchet opening and closing bar 1024 to rotate together with the rotating gear 109. The ratchet opening and closing portion 1027 of the ratchet opening and closing bar 1024 will continuously push away the ratchet teeth 1019, causing the ratchet teeth 1019 to disengage from the rotating gear 109. As the ratchet opening and closing bar 1024 and the rotating gear 109 continue to rotate together, until the ratchet opening and closing portion 1027 of the ratchet opening and closing bar 1024 pushes away all the ratchet teeth 1019, all... The ratchet 1019 disengages from the rotating gear 109. Under the action of the rotating gear return spring 1023, the rotating gear 109 rotates clockwise, thereby achieving the complete reset of the rotating gear 109, along with the pressure shaft 1010 and the pressure tooth 1011. After the rotating gear 109 is fully reset, the drive turntable 104 starts to rotate counterclockwise, driving the turntable 108, drive rack 1021, and ratchet opening and closing bar 1024 to reset. After the reset, the angle of the pressure tooth 1011 of the rotating gear 109 cannot work for the tension mechanism and needs to be readjusted to the working angle. That is, the drive turntable 104 rotates clockwise again, and the angle of the pressure tooth 1011 on the pressure shaft 1010 can be readjusted.

[0041] like Figure 8 , Figure 10 and Figure 11 As shown, a variable pitch slide shaft 1028 is fixedly installed on the outer side of the rotating disk 108, and a variable pitch slide groove 1029 is installed on the inner side of the fixed disk 101. The variable pitch slide shaft 1028 is slidably installed inside the variable pitch slide groove 1029. The variable pitch slide groove 1029 includes an inner arc-shaped slide groove 102901 and an outer arc-shaped slide groove 102902. The inner arc-shaped slide groove 102901 is located inside the outer arc-shaped slide groove 102902. A positioning convex arc 102903 is provided on the inner side of the fixed disk 101 and between the end sides of the inner arc-shaped slide groove 102901 and the outer arc-shaped slide groove 102902. The inner arc-shaped slide groove 102901 at both ends of the positioning convex arc 102903 communicates with the outer arc-shaped slide groove 102902. A rotating disk torsion spring 1030 is provided at the connection between the rotating disk 108 and the drive rotating disk 104. Figure 6(As shown). The section corresponding to the inner arc-shaped groove 102901 and the positioning convex arc 102903 is designated as inner arc-shaped groove segment a. The section of inner arc-shaped groove segment a extending to the outer end of the positioning convex arc 102903 is designated as inner arc-shaped groove segment b. The section corresponding to the outer arc-shaped groove 102902 and the positioning convex arc 102903 is designated as outer arc-shaped groove segment c. The section of outer arc-shaped groove segment c extending to the outer end of the positioning convex arc 102903 is designated as outer arc-shaped groove segment d. When the variable pitch slide shaft 1028 rotates counterclockwise from the outer arc-shaped slide groove d section into the inner arc-shaped slide groove a section, and then returns from the inner arc-shaped slide groove a section to the outer arc-shaped slide groove d, this is the working process of this utility model. When the variable pitch slide shaft 1028 is in the outer arc-shaped slide groove d section, the center of the pressure shaft 1010 and the drive turntable 104 is furthest, and the pressure teeth on the pressure shaft 1010 can press the textile machinery pull rake down. When it is in the inner arc-shaped slide groove a section, the center of the pressure shaft 1010 and the drive turntable 104 is closest, and the pressure teeth on the pressure shaft 1010 do not contact the textile machinery pull rake. The textile machinery pull rake is pushed up by the push teeth 1012. This process is repeated. When the variable pitch slide shaft 1028 is in the outer arc-shaped slide groove d section, the drive turntable 104 rotates counterclockwise. When the variable pitch slide shaft 1028 is in the inner arc-shaped slide groove a section, the drive turntable 104 rotates clockwise. When different textile machinery pull rakes need to be raised, the variable pitch slide shaft 1028 is in the inner arc-shaped slide groove section b. The drive turntable 104 rotates counterclockwise and then clockwise, allowing for the adjustment of different combinations of push teeth 1012, thus enabling the selection of different textile machinery pull rakes to rise. The specific selection process has been described above. When the angle of the pressure teeth 1011 on the pressure shaft 1010 needs to be adjusted, the variable pitch slide shaft 1028 is in the outer arc-shaped slide groove section c. The drive turntable 104 rotates clockwise and then counterclockwise, completing the angle adjustment of the pressure teeth 1011 on the pressure shaft 1010. When the variable pitch slide shaft 1028 slides clockwise to the end of the outer arc-shaped slide groove c, the rotating gear 109, along with the pressure shaft 1010 and the pressure teeth 1011, is reset. The specific adjustment process has been described above. Under the action of the rotating disk torsion spring 1030, the hinge joint between the rotating disk 108 and the drive turntable 104 tends to expand outward, preventing the variable pitch slide shaft 1028 from accidentally entering the inner arc slide groove a section when it enters the outer arc slide groove d from the outer arc slide groove c. The variable pitch slide shaft 1028 enters the outer arc slide groove d from the outer arc slide groove c, and the angle of the pressure tooth 1011 is adjusted before entering the working process.

[0042] like Figure 10 and Figure 11As shown, the height of the bottom side of the end of the inner arc-shaped slide groove 102901 is higher than the height of the bottom side of the outer arc-shaped slide groove 102902 at its junction, and the height of the bottom side of the end of the outer arc-shaped slide groove 102902 is higher than the height of the bottom side of the inner arc-shaped slide groove 102901 at its junction. This prevents the variable-pitch slide shaft 1028 from accidentally entering the inner arc-shaped slide groove a section when it enters the outer arc-shaped slide groove d from the outer arc-shaped slide groove c. It also prevents the variable-pitch slide shaft 1028 from accidentally entering the outer arc-shaped slide groove d when it enters the inner arc-shaped slide groove a section from the inner arc-shaped slide groove b section. The process of the inner arc-shaped slide groove b section entering the inner arc-shaped slide groove a section involves adjusting the push tooth 1012 and pushing the textile machinery pull rake upwards.

[0043] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A textile machinery pull rake drive device with controllable tension, characterized in that, The drive mechanism (1) includes a fixed disk (101), a fixed chamber (103) is provided inside the fixed disk (101), a drive turntable (104) is rotatably arranged on the fixed disk (101) and inside the fixed chamber (103), a rising shaft output port (105) and a pressure shaft output port (106) are provided on the drive turntable (104) and near the outer side, and a rising shaft is rotatably arranged at the rising shaft output port (105). 107), a rotating disk (108) is hinged on the drive turntable (104) and near the pressure shaft output port (106). A rotating gear (109) is rotatably mounted on the rotating disk (108). A pressure shaft (1010) is fixedly mounted on the inner side of the rotating gear (109) and at the pressure shaft output port (106). A pressure tooth (1011) is mounted on the pressure shaft (1010). Multiple sets of push teeth (1012) are mounted on the rising shaft (107).

2. The textile machinery pull rake drive device with controllable tension according to claim 1, characterized in that: A fixing ring (1013) is fixedly provided on the inner side of the fixed disk (101) and on the outer side of the drive turntable (104). A plurality of rotating teeth (1014) are evenly provided on the end side of the rising shaft (107). A plurality of stops (1015) are hinged on the inner side of the fixing ring (1013). A stop return spring (1016) is provided between the stop (1015) and the fixing ring (1013). The rotating teeth (1014) cooperate with the stop (1015). A positioning block (1017) is hinged on the drive turntable (104) near the output port (105) of the rising shaft. A positioning block return spring (1018) is provided at the connection between the positioning block (1017) and the drive turntable (104).

3. The textile machinery pull rake drive device with controllable tension according to claim 1, characterized in that: Multiple sets of ratchet teeth (1019) are evenly hinged on the outer side of the rotating disk (108) and corresponding to the rotating gear (109). A ratchet return spring (1020) is provided at the connection between the ratchet teeth (1019) and the rotating disk (108). The ratchet teeth (1019) are engaged with the teeth of the rotating gear (109). A drive rack (1021) is provided in an arc shape at the junction of the rotating disk (108) and the fixed disk (101). The drive rack (1021) meshes with the rotating gear (109). A drive rack stop block (1022) is provided on the inner side of the fixed disk (101).

4. The textile machinery pull rake drive device with controllable tension according to claim 3, characterized in that: A rotary gear return spring (1023) is provided at the connection between the rotary gear (109) and the rotary disk (108). A ratchet opening and closing strip (1024) is slidably provided at the junction of the rotary disk (108) and the outer side of the rotary gear (109). A toothed groove (1025) is provided on the outer side of the rotary gear (109). A sliding tooth (1026) is provided on the ratchet opening and closing strip (1024). The sliding tooth (1026) slides in the toothed groove (1025). A ratchet opening and closing part (1027) is provided on one side of the ratchet opening and closing strip (1024). The ratchet opening and closing part (1027) cooperates with the ratchet (1019).

5. A textile machinery pull rake drive device with controllable tension according to claim 4, characterized in that: A variable-pitch slide shaft (1028) is fixedly provided on the outer side of the rotating disk (108), and a variable-pitch slide groove (1029) is provided on the inner side of the fixed disk (101). The variable-pitch slide shaft (1028) is slidably disposed inside the variable-pitch slide groove (1029). The variable-pitch slide groove (1029) includes an inner arc-shaped slide groove (102901) and an outer arc-shaped slide groove (102902). The inner arc-shaped slide groove (102901) is located in the outer arc-shaped slide groove (102902). On the inner side of the fixed disk (101), a positioning convex arc (102903) is provided between the inner ring arc groove (102901) and the outer ring arc groove (102902) on the inner side of the fixed disk (101). The inner ring arc groove (102901) at both ends of the positioning convex arc (102903) communicates with the outer ring arc groove (102902). A rotating disk torsion spring (1030) is provided at the connection between the rotating disk (108) and the driving turntable (104).

6. A textile machinery pull rake drive device with controllable tension according to claim 5, characterized in that: The height of the bottom side of the end of the inner arc-shaped groove (102901) is higher than the height of the bottom side of the outer arc-shaped groove (102902) at its junction, and the height of the bottom side of the end of the outer arc-shaped groove (102902) is higher than the height of the bottom side of the inner arc-shaped groove (102901) at its junction.

7. A textile machinery pull rake drive device with controllable tension according to any one of claims 1-6, characterized in that: The drive mechanism (1) includes two sets arranged symmetrically. The two sets of drive mechanisms (1) share a rising shaft (107) and a pressure shaft (1010). A drive shaft (2) is fixedly connected between the drive turntables (104) of the two sets of drive mechanisms (1). The drive shaft (2) is provided with an opening (201) corresponding to the output port (105) of the rising shaft and the output port (106) of the pressure shaft.

8. A textile machinery pull rake drive device with controllable tension according to claim 7, characterized in that: A power gear (102) is fixedly installed on the outer end of the drive turntable (104) and on the outside of the fixed disk (101). The power gear (102) is connected to the power motor for transmission.

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