Lower keel moving-out device, method for transforming roving frame through lower keel moving-out device and roving frame

Abstract

The invention discloses a lower keel moving-out device, a method for transforming a roving frame through the lower keel moving-out device and the roving frame. The roving frame comprises the lower keel moving-out device and a lower keel lifting device. The lower keel moving-out device comprises at least two sets of reciprocating moving-out mechanisms arranged in the length direction of the lower keel body and a moving-out driving mechanism providing driving force for the multiple sets of reciprocating moving-out mechanisms, and the reciprocating moving-out mechanisms are arranged at the bottom of the lower keel body. The moving-out driving mechanism is arranged on the side, away from the outward moving-out direction, of the lower keel body. The lower keel lifting device is arranged on the side, away from the outward moving-out direction of the lower keel body, of the lower keel body in parallel, and the lower keel lifting device and the lower keel body are connected or disengaged through a disengagement reset mechanism. The lower keel moving-out device is compact in structure, small in occupied space and capable of being installed in the bottom space of a machine body of a traditional roving frame so that the traditional roving frame can be upgraded and reformed under the condition that the roving frame is not disassembled or moved.

Description

Technical Field

[0001] This invention relates to the field of roving frame technology, specifically to a lower roving removal device, a method for modifying a roving frame using the lower roving removal device, and the roving frame itself. Background Technology

[0002] The roving frame is a key piece of equipment in the spinning process, used to further draft, twist, and wind the drawn sliver into roving. Traditional roving frames typically rely on manual operation for loading and transporting the finished roving, resulting in high labor intensity, low efficiency, and susceptibility to human error. However, replacing them with automated roving frames is extremely costly. Therefore, most textile companies modify traditional roving frames. For traditional roving frames, the lower rib is fixed to the frame body, requiring manual disassembly and reassembly of the lower rib and the installation of a lower rib removal device at its base for automation. However, traditional roving frames have limited space, especially at the bottom, often requiring disassembly and raising of the frame base to install the removal device, leading to high modification costs and long lead times. Therefore, there is an urgent need for a simple and compact device that can quickly remove the lower rib, while ensuring that this device can cooperate with the lower rib lifting device to prevent equipment interference after modification. Summary of the Invention

[0003] To address the technical problems existing in the prior art, the present invention provides a device for removing the lower roving rib of a roving frame, an automatic doffing roving frame, and an automatic doffing method.

[0004] The technical solution adopted in this invention is as follows: In a first aspect, the present invention provides a lower rib removal device, which is arranged in the bottom space of the roving frame body, including at least two sets of reciprocating removal mechanisms arranged along the length direction of the lower rib body and a removal drive mechanism that provides driving force for several sets of reciprocating removal mechanisms. The reciprocating removal mechanism is located at the bottom of the lower rib body, and the removal drive mechanism is located on the side of the lower rib body away from its outward removal direction. Each set of reciprocating transfer mechanisms includes a transfer support plate and a transfer guide rail. The transfer guide rail is fixed to the bottom of the roving frame body, and the transfer support plate is disposed above the transfer guide rail and slidably connected to the transfer guide rail. The transfer drive mechanism includes a transfer drive shaft parallel to one side of the lower rib body and a transfer drive motor for driving the transfer drive shaft to rotate. Several transfer drive gears are arranged along the length of the transfer drive shaft, and the installation positions of the transfer drive gears correspond one-to-one with the positions of the reciprocating transfer mechanisms. Each transfer drive gear is meshed with a transfer drive rack, and each transfer drive rack is connected to the corresponding transfer support plate through a transition connecting plate. The removal transmission rack is located above the removal transmission gear, and the end of the transition connecting plate near the removal support plate is bent downwards and connected to the removal support plate; Alternatively, the removal transmission rack is located below the removal transmission gear, and the end of the transition connecting plate near the removal support plate is bent upwards and connected to the removal support plate.

[0005] Furthermore, the top of the end of the removed support plate away from the direction of outward movement of the lower rib body is provided with a positioning post that cooperates with the positioning hole at the bottom of the lower rib body.

[0006] Furthermore, the middle part of the removed support plate is provided with a positioning groove that matches the positioning protrusion at the bottom center of the lower rib body.

[0007] Furthermore, at least two sets of support bearings are provided on the removed drive shaft.

[0008] Secondly, the present invention provides a method for modifying a roving frame by using a lower rib removal device, wherein the lower rib body of the roving frame is equipped with a lower rib removal device, and the lower rib body is connected to or disconnected from the rib lifting device through a disconnection and reset mechanism.

[0009] Thirdly, the present invention provides a roving frame modified with a lower rib removal device, including a lower rib removal device, a lower rib lifting device, and a doffing frame. The lower rib lifting device is arranged parallel to the lower rib body on the side away from its outward movement direction, and the lower rib body and the lower rib lifting device are connected or disconnected through a disengagement and reset mechanism. The doffing frame is arranged parallel to the length direction of the lower rib body, and the two ends of the doffing frame are respectively slidably mounted on two frame columns on the front side of the frame body through a doffing guide mechanism and can be raised and lowered along the frame columns. The doffing guide mechanism is located on the rear side of the doffing frame.

[0010] Furthermore, the disengagement and reset mechanism includes a lifting side connecting plate and a lower keel side connecting plate. The lifting side connecting plate and the lower keel side connecting plate are respectively disposed on the two side walls opposite to the lower keel lifting device and the lower keel body, and the lower keel side connecting plate is located above the lifting side connecting plate. The lifting side connecting plate is provided with at least one lifting side connecting sleeve with a top opening, and the lower keel side connecting plate is provided with a lower keel side connecting column that cooperates with the lifting side connecting sleeve. The lower keel lifting device drives the lifting side connecting plate to rise or fall, so that the lifting side connecting sleeve is fitted into or disengaged from the lower keel side connecting column, thereby connecting or disengaging the lower keel lifting device from the lower keel body.

[0011] Furthermore, the lower keel lifting device includes a lifting transmission shaft arranged parallel to the lower keel body on the side away from its outward movement direction and a lifting drive motor connected to one end of the lifting transmission shaft. At least two lifting transmission gears are arranged on the lifting transmission shaft along its length direction. Each lifting transmission gear is meshed with a vertically arranged lifting transmission rack on the side near the lower keel body. A lifting fixing frame is also provided on one side of each lifting transmission rack. The lifting transmission rack is slidably connected to the lifting fixing frame. The lifting transmission rack of the lower rib lifting device is connected to or disconnected from the side of the lower rib body through a disengagement and reset mechanism, and the lifting side connecting plate in the disengagement and reset mechanism is located on the side of the lifting transmission rack close to the lower rib body.

[0012] Furthermore, the lower keel lifting device also includes a lower keel lifting support assembly disposed on one side of the lifting fixed frame. The lower keel lifting support assembly includes a lifting support arm, a lifting support chain, a lifting support sprocket, a lifting counterweight chain, and a lifting counterweight block. The supporting end of the lifting support arm is located at the bottom of the lower keel body, and the supporting end of the lifting support arm has a lifting support arc-shaped groove that matches the positioning protrusion at the bottom center of the lower keel body. The other end of the lifting support arm is rotatably connected to the lower middle part of the lifting fixing frame. Two lifting support sprockets are provided, and the two lifting support sprockets are coaxially and rotatably arranged on the upper part of one side of the lifting fixed frame. One of the lifting support sprockets is connected to one end of the lifting support chain, and the other end of the lifting support chain is hung on the bend in the middle of the lifting support arm. The other lifting support sprocket is connected to the lifting counterweight block through the lifting counterweight chain.

[0013] Furthermore, the doffing guide mechanism is a pulley block, and the inner side of the frame column is provided with a groove that cooperates with the pulley block.

[0014] The beneficial effects of this invention are as follows: (1) The present invention provides a lower rib removal device, which has a compact structure and occupies little space. It can be installed in the bottom space of the traditional roving frame to upgrade and transform the traditional roving frame without disassembling or moving the frame. At the same time, the present invention also designs the connection between the lower rib body of the roving frame and the lower rib lifting device as an automatically separable connection structure, which can realize the connection or separation between the lower rib body and the lower rib lifting device, thereby ensuring that the lower rib removal device can remove the lower rib body, thereby realizing automatic yarn doffing. (2) The present invention also designs the guide structure of the doffing frame as a rear-mounted type, which can be matched with the position after the lower rib body is moved out, so as to realize automatic doffing and new tube insertion. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the lower rib removal device according to Embodiment 1 of the present invention; Figure 2 This is a side view of the lower reinforcing bar removal device according to Embodiment 1 of the present invention; Figure 3 This is a schematic diagram of the structure of the removed support plate in Embodiment 1 of the present invention; Figure 4 This is a schematic diagram of the structure of the first and second limit switches and the limit block of the lower rib in Embodiment 1 of the present invention; Figure 5 This is a front view of the roving frame according to Embodiment 2 of the present invention; Figure 6 This is a side view of the roving frame according to Embodiment 2 of the present invention; Figure 7 This is a schematic diagram of the combined structure of the lower rib removal device and the lower rib lifting device in Embodiment 2 of the present invention; Figure 8 This is a side view of the lower keel lifting device in Embodiment 2 of the present invention; Figure 9 This is a three-dimensional structural diagram of the disengagement and reset mechanism in Embodiment 2 of the present invention; Figure 10 This is a three-dimensional structural diagram of the lower keel side connecting plate and the keel side connecting column in Embodiment 2 of the present invention.

[0017] The image is labeled as follows: 1. Lower rib body; 2. Reciprocating removal mechanism; 201. Removal support plate; 202. Removal guide rail; 203. Removal mechanism fixing seat; 204. Positioning column; 205. Positioning groove; 206. Lower rib first limit switch; 207. Lower rib second limit switch; 208. Lower rib travel limit block; 3. Removal drive mechanism; 301. Removal drive shaft; 302. Removal drive motor; 303. Removal drive gear; 304. Removal drive rack; 305. Transition connecting plate; 4. Pedal; 5. Lower rib lifting device; 501. Lifting drive shaft; 502. Lifting drive gear; 503. Lifting drive rack; 504. 505. Lifting and fixing frame; 5051. Lifting support arm; 5052. Lifting support arc groove; 5053. Support arm bending part; 506. Lifting support chain; 507. Lifting support sprocket; 508. Lifting counterweight chain; 509. Lifting counterweight sprocket; 510. Lifting support arm rotating assembly; 5101. V-shaped roller; 5102. Anti-detachment rod; 6. Doffing frame; 7. Frame body; 701. Frame column; 8. Disengagement and reset mechanism; 801. Lifting side connecting plate; 802. Lower rib side connecting plate; 803. Lifting side connecting sleeve; 804. Lower rib side connecting column. Detailed Implementation

[0018] This invention provides a device for removing the lower yarn guide rail on a roving frame and an automatic doffing roving frame equipped with the device. To make the objectives, technical solutions, and effects of this invention clearer and more explicit, the invention is further described in detail below. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0019] Example 1 Reference Figure 1 This embodiment provides a roving frame lower rib removal device, which is arranged in the bottom space of the roving frame body. It includes a number of reciprocating removal mechanisms 2 arranged along the length direction of the lower rib body 1 and a removal drive mechanism 3 that provides driving force for the number of reciprocating removal mechanisms 2. The reciprocating removal mechanism 2 is located at the bottom of the lower rib body 1, and the removal drive mechanism 3 is located on the side of the lower rib body 1 away from its outward removal direction.

[0020] Reference Figure 2Each of the aforementioned reciprocating transfer mechanisms 2 includes a transfer support plate 201 and a transfer guide rail 202. The transfer guide rail 202 is fixed above the transfer mechanism fixing seat 203, which is fixed to the ground at the bottom of the roving frame. The transfer support plate 201 is disposed above the transfer guide rail 202 and slidably connected to it. The aforementioned transfer drive mechanism 3 includes a transfer drive shaft 301 parallel to one side of the lower rib body 1 and a transfer drive motor 302 for driving the transfer drive shaft 301 to rotate. Several transfer drive gears 303 are arranged along the length of the transfer drive shaft 301, and the installation positions of the transfer drive gears 303 correspond one-to-one with the positions of the reciprocating transfer mechanisms 2. Each transfer drive gear 303 is meshed with a horizontally arranged transfer drive rack 304, and each transfer drive rack 304 is connected to the corresponding rack through a transition connecting plate 305. The corresponding removal support plate 201 is connected; in addition, the above-mentioned removal transmission rack 304 can be meshed and connected above or below the removal transmission gear 303. When the removal transmission rack 304 is above the removal transmission gear 303, the end of the transition connecting plate 305 near the removal support plate 201 is bent downward and connected to the removal support plate 201; when the removal transmission rack 304 is below the removal transmission gear 303, the end of the transition connecting plate 305 near the removal support plate 201 is bent upward and connected to the removal support plate 201.

[0021] The aforementioned removal drive shaft 301 is also provided with several support bearings along its length to keep the removal drive shaft 301 in a horizontal state and to allow it to rotate smoothly.

[0022] Reference Figure 3 The top of the aforementioned removal support plate 201, which is away from the lower keel body 1 and moves outward, is provided with a positioning post 204 that mates with the positioning hole at the bottom of the lower keel body 1. The middle of the removal support plate 201 is provided with a positioning groove 205 that mates with the positioning protrusion at the bottom center of the lower keel body 1. The removal support plate 201 positions the lower keel body 1 through the positioning post 204 and the positioning groove 205, ensuring that the lower keel body 1 can connect with the removal support plate 201 when it falls on it, thereby ensuring that the lower keel body 1 remains stable during the removal process.

[0023] In addition, a foot pedal 4 is provided on the side of the aforementioned removal support plate 201 near the outward movement direction of the lower keel body 1. The foot pedal 4 and the lower keel body 1 can be moved out synchronously, so as to avoid the foot pedal 4 being fixed on the ground and affecting the outward movement of the lower keel body 1.

[0024] Additionally, refer to Figure 4The lower rib removal device is further equipped with a first lower rib travel switch 206 and a second lower rib travel switch 207 on its side to control the removal and repositioning of the lower rib body. Specifically, the first lower rib travel switch 206 and the second lower rib travel switch 207 are respectively mounted on the side of the transition connecting plate 305 of one of the removal drive mechanisms 3 via fixed bases. The side of the transition connecting plate 305 is provided with a lower rib travel limit block 208 that cooperates with the first lower rib travel switch 206 and the second lower rib travel switch 207. The lower rib travel limit block 208 moves between the first lower rib travel switch 206 and the second lower rib travel switch 207 along with the transition connecting plate 305. When the side of the lower rib travel limit block 208 contacts the first lower rib travel switch 206 or the second lower rib travel switch 207, it indicates that the lower rib body has been removed or repositioned. To achieve automatic control, the first limit switch 206 and the second limit switch 207 of the lower keel, as well as the removal drive motor 302, can be connected to the PLC automatic control system to achieve automatic and precise control of the removal and reset actions.

[0025] The working process of the lower rib removal device in this embodiment is as follows: the removal drive motor is turned on to drive the removal transmission shaft and the removal transmission gear to rotate. At this time, the removal transmission rack moves outward horizontally, thereby driving the removal support plate to slide outward along the removal guide rail. The lower rib body located above the removal support plate moves outward synchronously. Then, by controlling the removal drive motor to reverse, the removal transmission rack drives the removal support plate and the lower rib body to move in the opposite direction and reset.

[0026] Example 2 Reference Figure 5 and Figure 6 This embodiment provides a roving frame modified using the lower rib removal device described in Embodiment 1. The roving frame includes the lower rib removal device as described in Embodiment 1, a lower rib lifting device 5, a doffing frame 6, and a frame body 7. The lower rib lifting device 5 is arranged parallel to the lower rib body 1 on the side away from its outward movement direction, and the lower rib lifting device 5 is connected to or disconnected from the lower rib body 1 through a disengagement and reset mechanism 8. The doffing frame 6 is arranged parallel to the length direction of the lower rib body 1. The two ends of the doffing frame 6 are slidably mounted on two frame columns 701 on the front side of the frame body 7 through a doffing guide mechanism and can be raised and lowered along the frame columns 701. The doffing guide mechanism is located on the rear side of the doffing frame 6. The doffing guide mechanism can specifically be a pulley system, and the inner side of the frame column 701 is provided with a groove that cooperates with the pulley system.

[0027] Reference Figure 7The aforementioned lower rib lifting device 5 includes a lifting transmission shaft 501 parallel to the side of the lower rib body 1 away from its outward movement direction and a lifting drive motor (not shown in the figure) connected to one end of the lifting transmission shaft 501. At least two lifting transmission gears 502 are provided on the lifting transmission shaft 501 along its length direction. Each lifting transmission gear 502 is meshed with a vertically arranged lifting transmission rack 503 on the side near the lower rib body 1. Each lifting transmission rack 503 is connected to or disengaged from the side of the lower rib body 1 through a disengagement and reset mechanism 8. In addition, a lifting fixing frame 504 is provided on one side of each lifting transmission rack 503. The lifting transmission rack 503 is slidably connected to the lifting fixing frame 504.

[0028] Reference Figure 8 The aforementioned lower rib lifting device 5 also includes a lower rib lifting support assembly disposed on one side of the lifting fixed frame 504. The lower rib lifting support assembly includes a lifting support arm 505, a lifting support chain 506, a lifting support sprocket 507, a lifting counterweight chain 508, a lifting counterweight sprocket 509, and a lifting counterweight block (not shown in the figure). The supporting end of the lifting support arm 505 is located at the bottom of the lower keel body 1, and the supporting end of the lifting support arm 505 has a lifting support arc-shaped groove 5051 that matches the positioning protrusion at the bottom center of the lower keel body 1. The other end of the lifting support arm 505 is rotatably connected to the lower middle part of the lifting fixing frame 504 through the lifting support arm rotating assembly 510. The lifting support arm rotating assembly 510 specifically includes a V-shaped roller 5101 and an anti-detachment rod 5102. The V-shaped roller 5101 is rotatably located at the lower middle part of the lifting fixing frame 504 through a rotating shaft. The anti-detachment rod 5102 is fixed parallel to the upper part of the end of the lifting support arm 505 near the lifting fixing frame 504 by angle steel. The bottom surface of the anti-detachment rod 5102 and the top surface of the lifting support arm 505 are locked in the V-shaped groove of the V-shaped roller, and the top surface of the lifting support arm 505 is curved. The aforementioned lifting support sprocket 507 and lifting counterweight sprocket 509 are rotatably mounted on the upper side of the lifting fixed frame 504 via the same rotating shaft. One end of the aforementioned lifting support chain 506 is connected to the lifting support sprocket 507, and the other end is hung on the support arm bend 5052 in the middle of the lifting support arm 505. One end of the aforementioned lifting counterweight chain 508 is connected to the lifting counterweight sprocket 509, and the other end is connected to the lifting counterweight block.

[0029] Reference Figure 9 and Figure 10The aforementioned disengagement and reset mechanism 8 includes a lifting side connecting plate 801 and a lower rib side connecting plate 802. The lifting side connecting plate 801 and the lower rib side connecting plate 802 are respectively disposed on the two side walls opposite to the lifting transmission rack 503 and the lower rib body 1, and the lower rib side connecting plate 802 is located above the lifting side connecting plate 801. In addition, the lifting side connecting plate 801 is provided with at least one lifting side connecting sleeve 803 with a top opening, and the lower rib side connecting plate 802 is provided with a lower rib side connecting post 804 that cooperates with the lifting side connecting sleeve 803. When the lifting transmission rack 503 rises or falls, it can drive the lifting side connecting sleeve 803 to rise or fall, so that the lifting side connecting sleeve 803 can be inserted into or removed from the lower rib side connecting post 804, thereby realizing the connection or disengagement of the lower rib lifting device 5 and the lower rib body 1.

[0030] In addition, specifically in this embodiment, the lifting side connecting plate 801 of the above-mentioned disengagement and reset mechanism 8 is stepped, with a first lifting side connecting sleeve 803 at the top of the second step and a second lifting side connecting sleeve 803 on the bottom side of the lifting side connecting plate 801. The left and right sides of the lower rib side connecting plate 802 are provided with lower rib side connecting columns 804 that cooperate with the first and second lifting side connecting sleeves 803. The disengagement and reset mechanism achieves connection or reset through two sets of cooperating lifting side connecting sleeves and lower rib side connecting columns.

[0031] The working process of an automatic doffing roving frame provided in this embodiment is as follows: After the roving frame finishes spinning (the yarn bobbin is located above the lower roving body), the lower roving lifting device drives the lower roving body to move downwards. When it descends to the position of the lower roving removal device's removal support plate, the lower roving body falls above the removal support plate. Then, the lower roving lifting device continues to move downwards, causing the lifting side connecting plate, which is disconnected from the reset mechanism, to move downwards and disengage from the lower roving side connecting column. At this time, the lower roving body is disconnected from the lower roving lifting device. Then, the lower roving removal device drives the lower roving body to move outwards, so that the lower roving body and the yarn bobbin above it are located directly below the doffing frame. Then, the doffing frame descends to perform doffing and bobbin changing operations. After the doffing and bobbin changing are completed, the lower roving removal device drives the lower roving body to move in the opposite direction and reset. After resetting, the lower roving lifting device is controlled to rise so that the lower roving lifting device is connected to the lower roving body. Then, the lower roving lifting device continues to drive the lower roving body to rise to the spinning station for spinning.

[0032] It should be noted that parts not mentioned in this invention can be achieved by using or referencing existing technologies, such as the doffing frame and its guiding mechanism, which can be achieved by using existing technologies.

[0033] Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A device for moving down the leg, arranged in the space at the bottom of the body of the roving frame, characterized in that, The device comprises at least two groups of reciprocating moving-out mechanisms arranged along the length direction of the lower dragon muscle body and a moving-out driving mechanism for driving the reciprocating moving-out mechanisms, the reciprocating moving-out mechanisms are arranged at the bottom of the lower dragon muscle body, and the moving-out driving mechanism is arranged at the side of the lower dragon muscle body away from the outward moving direction. Each group of the reciprocating moving-out mechanisms comprises a moving-out supporting plate and a moving-out guide rail, the moving-out guide rail is fixed below the body of the roving frame, the moving-out supporting plate is arranged above the moving-out guide rail and is in sliding connection with the moving-out guide rail; the moving-out driving mechanism comprises a moving-out transmission shaft arranged parallel to the side of the lower dragon muscle body and a moving-out driving motor for driving the moving-out transmission shaft to rotate, a plurality of moving-out transmission gears are arranged on the moving-out transmission shaft along the length direction of the moving-out transmission shaft, and the installation positions of the moving-out transmission gears correspond to the positions of the reciprocating moving-out mechanisms one by one, each moving-out transmission gear is in meshing connection with a moving-out transmission rack, and each moving-out transmission rack is connected with the corresponding moving-out supporting plate through a transition connecting plate. The moving-out transmission rack is located above the moving-out transmission gear, and the end of the transition connecting plate close to the moving-out supporting plate is connected with the moving-out supporting plate after being bent downward. Alternatively, the moving-out transmission rack is located below the moving-out transmission gear, and the end of the transition connecting plate close to the moving-out supporting plate is connected with the moving-out supporting plate after being bent upward.

2. A device for moving down the thigh according to claim 1, characterized in that The top of the end of the moving-out supporting plate away from the outward moving direction of the lower dragon muscle body is provided with a positioning column matched with the positioning hole at the bottom of the lower dragon muscle body.

3. The device according to claim 1, wherein The middle of the moving-out supporting plate is provided with a positioning groove matched with the positioning protrusion at the bottom of the center of the lower dragon muscle body.

4. The device according to claim 1, wherein At least two groups of supporting bearings are arranged on the moving-out transmission shaft.

5. A method of retrofitting a roving frame with a down draft removal device, characterized by, The lower dragon muscle body of the roving frame is matched with the lower dragon muscle moving-out device according to any one of claims 1-4, and the lower dragon muscle body and the dragon muscle lifting device are connected or disconnected through the disconnection reset mechanism.

6. A roving frame modified with the lower gripper bar removal device, comprising the lower gripper bar removal device according to any one of claims 1 to 4, and a lower gripper bar lifting device, a doffer, characterized in that, The lower dragon muscle lifting device is arranged parallel to the side of the lower dragon muscle body away from the outward moving direction, and the lower dragon muscle body and the dragon muscle lifting device are connected or disconnected through the disconnection reset mechanism; the doffer is arranged along the length direction of the lower dragon muscle body, and the two ends of the doffer are respectively arranged on the two rack upright columns on the front side of the rack body through the doffer guide mechanism and can be lifted along the rack upright columns, and the doffer guide mechanism is located at the rear side of the doffer.

7. The roving frame according to claim 6, characterized in that The disconnection reset mechanism comprises a lifting side connecting plate and a lower dragon muscle side connecting plate, the lifting side connecting plate and the lower dragon muscle side connecting plate are respectively arranged on the two side walls opposite to each other of the lower dragon muscle lifting device and the lower dragon muscle body, and the lower dragon muscle side connecting plate is located above the lifting side connecting plate; at least one lifting side connecting sleeve with an open top is arranged on the lifting side connecting plate, and a lower dragon muscle side connecting column matched with the lifting side connecting sleeve is arranged on the lower dragon muscle side connecting plate, and the lower dragon muscle lifting device drives the lifting side connecting plate to ascend or descend so that the lifting side connecting sleeve is sleeved into or out of the lower dragon muscle side connecting column, thereby realizing the connection or disconnection of the lower dragon muscle lifting device and the lower dragon muscle body.

8. The roving frame according to claim 8, characterized in that The lower dragon muscle lifting device comprises a lifting transmission shaft arranged in parallel on the side of the lower dragon muscle body away from the outward moving direction, and a lifting driving motor connected with one end of the lifting transmission shaft, at least two lifting transmission gears are arranged on the lifting transmission shaft along the length direction of the lifting transmission shaft, each lifting transmission gear is meshingly connected with a vertically arranged lifting transmission rack on the side close to the lower dragon muscle body, and one side of each lifting transmission rack is further provided with a lifting fixing frame, and the lifting transmission rack and the lifting fixing frame are in sliding connection; The lifting transmission rack of the lower dragon muscle lifting device is connected or disconnected with the side of the lower dragon muscle body through the disconnection reset mechanism, and the lifting side connecting plate in the disconnection reset mechanism is arranged on the side of the lifting transmission rack close to the lower dragon muscle body.

9. The roving frame according to claim 6, characterized in that The lower dragon muscle lifting device further comprises a lower dragon muscle lifting support assembly arranged on one side of the lifting fixing frame, and the lower dragon muscle lifting support assembly comprises a lifting support arm, a lifting support chain, a lifting support sprocket, a lifting counterweight chain and a lifting counterweight block. The support end of the lifting support arm is arranged at the bottom of the lower dragon muscle body, and the end of the support end of the lifting support arm is provided with a lifting support arc-shaped groove matched with the positioning protrusion at the center bottom of the lower dragon muscle body, and the other end of the lifting support arm is rotationally connected with the middle lower part of the lifting fixing frame. The lifting support sprocket is arranged in two and coaxially arranged on the upper side of the lifting fixing frame, one of the lifting support sprockets is connected with one end of the lifting support chain, and the other end of the lifting support chain is hung on the bending part of the lifting support arm, and the other lifting support sprocket is connected with the lifting counterweight block through the lifting counterweight chain.

10. The roving frame according to claim 6, characterized in that The doffing guide mechanism is a pulley block, and the inner side of the rack upright column is provided with a sliding groove matched with the pulley block.

Images