Automatic doffing equipment and method of filament winding machine for chemical fiber industry

Abstract

The invention discloses an automatic doffing device and method for a filament winding machine in the chemical fiber industry, the automatic doffing device comprises a rack, the rack is composed of a top frame, a bottom frame and two vertical frames, the top frame is provided with an upper moving seat, the upper moving seat can move left and right along the top frame through a guide rail pair and an upper driving mechanism, and the two vertical frames are arranged on the bottom frame. A lower moving seat is arranged on the bottom frame and can move left and right along the bottom frame through a guide rail pair and a lower driving mechanism; the first mechanical arm and the fourth mechanical arm can move in the X-axis direction, the Y-axis direction and the Z-axis direction, the third mechanical arm can rotate in the horizontal direction and swing up and down, the first mechanical arm can attract and guide filaments, and the fourth mechanical arm can open and close a filament spindle axial chuck. And the third manipulator can remove the silk spindle, replace the paper tube and pull the silk spindle shaft bracket. The automatic doffing device can replace manual operation, automatic doffing is carried out on the filament winding machine, manual operation is replaced, the labor intensity is reduced, and the labor production efficiency is improved.

Description

Technical Field

[0001] The present invention relates to a filament dropping technology for a filament winding machine in the chemical fiber industry, and particularly to an automatic filament dropping device and method for a filament winding machine in the chemical fiber industry. Background Art

[0002] At present, in the production process of viscose filament in the chemical fiber industry, the removal of the filament bobbin from the filament winding machine and the installation of an empty paper tube (commonly known as: filament dropping) are all carried out manually; generally, each filament production machine has about 140 or more filament bobbins, and every four winding machines form a group; when the filament wound on the filament bobbin of the filament winding machine reaches a certain diameter; the operator first breaks the filament and sends the broken filament end into the filament suction device to ensure that the filament production does not stop; then, the wound filament bobbin is removed from the winding machine (filament dropping), and at the same time, an empty paper tube is replaced and pressed onto the winding roller; then, the operator takes out the filament in the filament suction device, and through a complex path, the filament is pulled and wound onto the high-speed rotating paper tube, thus completing a filament dropping process. Such a filament dropping process requires very skilled operators; even for very skilled operators, the phenomenon of failure in pulling and threading the filament often occurs. The filament dropping process is very cumbersome and requires professional training; at the same time, a large part of the operators in the workshop are engaged in filament dropping work, which is laborious and time-consuming. Summary of the Invention

[0003] The technical problem to be solved by the present invention is: to overcome the deficiencies of the prior art and provide an automatic filament dropping device and method for a filament winding machine in the chemical fiber industry, which are reasonably designed and can automatically realize filament dropping.

[0004] The technical solution of the present invention is: An automatic filament dropping device for a filament winding machine in the chemical fiber industry, including a frame, the frame is composed of a top frame, a bottom frame and two vertical frames, an upper moving seat is arranged on the top frame, and the upper moving seat can move left and right along the top frame through a guide rail pair and an upper driving mechanism, a lower moving seat is arranged on the bottom frame, and the lower moving seat can move left and right along the bottom frame through a guide rail pair and a lower driving mechanism; The first manipulator includes a first fixed arm and a first telescopic arm, the first fixed arm is connected to the upper moving seat through a first lifting mechanism, the first telescopic arm can telescopically move back and forth along the first fixed arm through a guide rail pair and a first telescopic power mechanism, and a first filament catcher is arranged at the front end of the first telescopic arm, which can catch the filament and suck the filament into the filament temporary storage box through vacuum; The fourth manipulator includes a fourth fixed arm and a fourth telescopic arm. The fourth fixed arm is connected to the upper moving seat through a fourth lifting mechanism. The fourth telescopic arm can telescopically move back and forth along the fourth fixed arm through a guide rail pair and a fourth telescopic power mechanism. A spindle opening and closing chuck mechanism is provided at the front end of the fourth telescopic arm, which can open and close the axial fixing chuck of the spindle. The third manipulator includes a rotating disk, a first rotating arm, a second rotating arm, and a chuck. The rotating disk is rotatably connected to the lower moving seat through a rotating guide rail pair and can rotate in a circular motion through a rotating power mechanism. The lower end of the first rotating arm is rotatably connected to the rotating disk and can swing up and down through a first swinging power mechanism. The upper end of the first rotating arm is rotatably connected to the lower end of the second rotating arm and can swing up and down through a second swinging power mechanism. The upper end of the second rotating arm is rotatably connected to the rear end of the chuck and can swing up and down through a third swinging power mechanism. The chuck can lift and lower the spindle shaft support on the filament winding machine and can replace the spindle.

[0005] Furthermore: The second manipulator includes a second fixed arm and a second telescopic arm. The second fixed arm is connected to the upper moving seat through a second lifting mechanism. The second telescopic arm can telescopically move back and forth along the second fixed arm through a guide rail pair and a second telescopic power mechanism. A second filament catcher is provided at the front end of the second telescopic arm, which can assist in catching the long filament and suck the long filament into the long filament temporary storage box through vacuum. Furthermore: The spindle opening and closing chuck mechanism includes an opening and closing motor and a clamping plate. The opening and closing motor can drive the clamping plate to rotate, thereby opening and closing the spindle chuck.

[0006] Furthermore: There are two groups of chucks, which are respectively arranged on both sides of the upper end of the second rotating arm. And each group of chucks includes two arc semi-bodies, which can open and close under the action of power.

[0007] Furthermore: The first filament catcher is communicated with the long filament temporary storage box through a wire guiding tube. A vacuum generator is provided on the wire guiding tube, and the vacuum generator is communicated with a compressed air inlet.

[0008] Furthermore: A spindle temporary storage rack and a paper tube temporary storage rack are respectively arranged on the machine frame, and all power mechanisms are respectively connected to a controller.

[0009] An automatic filament dropping method for a filament winding machine in the chemical fiber industry using the automatic filament dropping equipment for the filament winding machine in the chemical fiber industry includes the following steps: (1) Wire breaking and wire suction: The first manipulator moves left and right, up and down, and forward and backward, so that the first wire catcher approaches and clamps the filaments. At this time, the filaments are still in the winding state of the winding head; at the same time, the filament cutter automatically cuts off the filaments being wound; then, the cut filaments are automatically sucked by the first wire catcher and enter the filament temporary storage box through the wire guide tube to ensure that the production wire roller does not stop; (2) Remove the silk ingot and replace the paper tube: The third manipulator makes a left-right linear motion and swings up and down, and the claw pulls up the silk ingot shaft bracket on the filament winding machine. After being pulled into place, the silk ingot shaft bracket remains stationary, and the fourth manipulator moves in the left-right, up-down and front-back directions, so that the fourth manipulator opens the silk ingot axial chuck of the fixed paper tube on the silk ingot shaft fixing frame, and then, the claw of the third manipulator clamps the two ends of the silk ingot and removes the silk ingot and places it on the silk ingot temporary storage rack; then, the third manipulator uses the claw to grab the empty paper tube from the paper tube temporary storage rack and automatically installs it on the silk ingot shaft bracket, and the fourth manipulator closes the silk ingot axial chuck; finally, the third manipulator pushes the silk ingot shaft bracket into place, so that the paper tube contacts and presses onto the winding roller, and at this time the empty paper tube begins to rotate at high speed with the winding roller; (3) Wire winding: The first wire catcher automatically pulls the filament head to the wire holder on the right side of the empty paper tube, and winds the filament onto one end of the paper tube; after winding for a certain period of time, the first wire catcher is reset, thus completing a wire dropping process.

[0010] Furthermore: In step (2) and step (3), the second wire catcher moves together with the first wire catcher, and the second wire catcher serves as a backup wire absorber to ensure that the second wire catcher continues to absorb the filaments after the first wire catcher fails to absorb the filaments.

[0011] Furthermore: In step (2) and step (3), the silk ingot temporary storage rack and the paper tube temporary storage rack are located on the rear side of the frame, and the third manipulator needs to rotate to put down the silk ingot and take away the paper tube.

[0012] The beneficial effects of the present invention are: 1. The present invention can replace manual operation and automatically drop the filaments from the filament winding machine, thereby replacing manual labor, reducing labor intensity and improving labor production efficiency.

[0013] 2. The present invention adopts two wire catchers, which can complement each other and ensure that the filaments can be sucked into the wire catchers, thereby laying a foundation for the next step of winding the wire ingot.

[0014] 3. The present invention adopts a third manipulator, which can realize the lifting and lowering of the silk ingot shaft bracket, and can also remove the wound silk ingot and put it into the paper tube, which is convenient and quick.

[0015] 4. The present invention adopts a fourth manipulator, which can open and close the axial chuck of the ingot on the ingot shaft support, and then can take and place the ingot.

[0016] 5. The design of the present invention is reasonable and can automatically realize filament dropping, which is of great significance for the breakthrough and improvement of the new quality productivity in China's chemical fiber industry, as well as the progress of the industry's automation technology and high-tech innovation direction and process technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a perspective structure diagram of an automatic filament dropping device for a filament winding machine in the chemical fiber industry; Figure 2 It is another perspective structure diagram of an automatic filament dropping device for a filament winding machine in the chemical fiber industry; Figure 3 It is a side view of an automatic filament dropping device for a filament winding machine in the chemical fiber industry; Figure 4 It is Figure 1 a schematic structural diagram of the first filament catcher in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] Embodiment 1: Refer to Figures 1-4 , in the figure: 1 - the first manipulator; 11 - the first filament catcher; 12 - the compressed air inlet; 13 - the wire guiding tube; 14 - the vacuum generator; 2 - the second manipulator; 21 - the second filament catcher; 3 - the third manipulator; 4 - the fourth manipulator; 5 - the frame; 51 - the top frame, 52 - the bottom frame; 6 - the filament winding machine; 61 - the bobbin; 62 - the winding roller; 63 - the bobbin shaft bracket; 64 - the axial chuck of the bobbin; 7 - the long filament temporary storage box; 8 - the bobbin temporary storage rack; 9 - the paper tube temporary storage rack.

[0019] An automatic filament dropping device for a filament winding machine in the chemical fiber industry includes a frame 5, which is composed of a top frame, a bottom frame and two vertical frames. Among them: a top moving seat is arranged on the top frame 5, and the top moving seat can move left and right along the top frame through a guide rail pair and an upper driving mechanism; a bottom moving seat is arranged on the bottom frame, and the bottom moving seat can move left and right along the bottom frame through a guide rail pair and a lower driving mechanism; the guide rail pair includes a guide rail and a sliding block, and the two are in sliding fit. The upper driving mechanism and the lower driving mechanism can adopt a pressure cylinder, or a combination of a driving motor, a driving wheel and a toothed belt, or a combination of a driving motor, a gear and a rack. There are various forms and will not be listed one by one.

[0020] The first manipulator 1 includes a first fixed arm and a first telescopic arm. The first fixed arm is connected to the top moving seat through a first lifting mechanism. The first telescopic arm can telescopically move back and forth along the first fixed arm through a guide rail pair and a first telescopic power mechanism. A first filament catcher 11 is arranged at the front end of the first telescopic arm, which can catch long filaments; the first lifting mechanism can also adopt various modes, such as a pressure cylinder, a driving motor and a rack, etc., and will not be listed one by one.

[0021] The fourth manipulator 4 includes a fourth fixed arm and a fourth telescopic arm. The fourth fixed arm is connected to the upper moving seat through a fourth lifting mechanism. The fourth telescopic arm can telescopically move back and forth along the fourth fixed arm through a guide rail pair and a fourth telescopic power mechanism. A yarn spindle opening and closing lock mechanism is provided at the front end of the fourth telescopic arm, which can open and close the axial chuck of the yarn spindle. The third manipulator 3 includes a rotating disk, a first rotating arm, a second rotating arm, and a claw. The rotating disk is rotatably connected to the lower moving seat through a rotating guide rail pair and can rotate in a circle through a rotating power mechanism. The lower end of the first rotating arm is rotatably connected to the rotating disk and can swing up and down through a first swinging power mechanism. The upper end of the first rotating arm is rotatably connected to the lower end of the second rotating arm and can swing up and down through a second swinging power mechanism. The upper end of the second rotating arm is rotatably connected to the rear end of the claw and can swing up and down through a third swinging power mechanism. The claw can lift and lower the yarn spindle support 63 on the filament winding machine 6 and can replace the yarn spindle 61.

[0022] Preferred solution: The second manipulator 2 includes a second fixed arm and a second telescopic arm. The second fixed arm is connected to the upper moving seat through a second lifting mechanism. The second telescopic arm can telescopically move back and forth along the second fixed arm through a guide rail pair and a second telescopic power mechanism. A second filament catcher 21 is provided at the front end of the second telescopic arm, which can assist in catching the filament.

[0023] Preferred solution: The yarn spindle opening and closing lock mechanism includes an opening and closing motor and a clamping plate. The opening and closing motor can drive the clamping plate to rotate, thereby opening and closing the axial chuck of the yarn spindle 64. The axial chuck of the yarn spindle 64 is connected to the yarn spindle support 63 through a screw thread. When the axial chuck of the yarn spindle 64 rotates clockwise, it can move inward to clamp the yarn spindle 61. On the contrary, when the axial chuck of the yarn spindle 64 rotates counterclockwise, it can move outward away from the yarn spindle 61, facilitating the removal of the yarn spindle 61. The clamping plate is used to clamp the axial chuck of the yarn spindle 64 to enable it to rotate.

[0024] Preferred solution: There are two groups of claws, which are respectively arranged on both sides of the upper end of the second rotating arm. In this way, both sides of the yarn spindle 61 can be clamped. Moreover, each group of claws includes two arc semi-bodies, and the two arc semi-bodies can open and close under the action of power. This power can also be a pressure cylinder or a driving motor, which will not be elaborated.

[0025] Preferred solution: The first filament catcher 11 is connected to the filament temporary storage box 7 through a wire guiding tube 13. A vacuum generator 14 is provided on the wire guiding tube 13, and the vacuum generator 14 is connected to the compressed air inlet 12. The first filament catcher 11 can contact the filament. Under the action of negative pressure, the filament is sucked into the first filament catcher 11 and enters the filament temporary storage box 7 through the wire guiding tube 13.

[0026] Furthermore: a silk ingot temporary storage rack 8 and a paper tube temporary storage rack 9 are respectively arranged on the frame 5, and all power mechanisms are respectively connected to the controller (not shown in the figure).

[0027] An automatic doffing method for a filament winding machine for the chemical fiber industry using an automatic doffing device of the filament winding machine for the chemical fiber industry comprises the following steps: (1) Wire breaking and wire suction: The first manipulator 1 moves in the left-right, up-down and forward-backward directions, so that the first wire catcher 11 approaches and clamps the filaments, while the filaments are still in the winding state of the winding head; at the same time, the filament cutter automatically cuts off the filaments being wound; then, the cut filaments are automatically sucked by the first wire catcher 11 and enter the filament temporary storage box 7 through the wire guide tube 13, ensuring that the wire roller does not stop; (2) Remove the silk ingot and replace the paper tube: the third manipulator 3 makes a left-right linear motion and swings up and down, and the claw pulls up the silk ingot shaft bracket 63 on the filament winding machine 6. After being pulled into place, the silk ingot shaft bracket 63 remains stationary, and the fourth manipulator 4 moves in the left-right, up-down and front-back directions, so that the fourth manipulator 4 opens the silk ingot axial chuck 64 of the fixed paper tube on the silk ingot shaft fixing frame 63. Then, the claws of the third manipulator 3 clamp the two ends of the silk ingot 61 and remove the silk ingot 61 and place it on the silk ingot temporary storage rack 8; then, the third manipulator 3 uses the claw to grab the empty paper tube from the paper tube temporary storage rack 9 and automatically install it on the silk ingot shaft bracket 63, and the fourth manipulator 4 closes the silk ingot axial chuck 64; finally, the third manipulator 3 pushes the silk ingot shaft bracket 63 into place, so that the paper tube contacts and presses onto the winding roller 62, and at this time the empty paper tube begins to rotate at high speed with the winding roller 62; (3) Wire connection: The first wire catcher 11 automatically pulls the filament head to the wire holder on the right side of the empty paper tube, and winds the filament to one end of the paper tube; after winding for a certain time, the first wire catcher is reset, thus completing a wire dropping process.

[0028] Preferred solution: In step (2) and step (3), the second wire catcher 21 moves together with the first wire catcher 11, and the second wire catcher 21 serves as a backup wire absorber to ensure that the second wire catcher 21 continues to absorb the filaments after the first wire catcher 11 fails to absorb the filaments.

[0029] Preferred solution: In step (2) and step (3), the silk ingot temporary storage rack 8 and the paper tube temporary storage rack 9 are located at the rear side of the machine frame 5, and the third manipulator 3 needs to rotate to put down the silk ingot 61 and take away the paper tube.

[0030] The invention can replace manual operation and automatically drop the filaments from the filament winding machine, so as to replace manual work, reduce labor intensity and improve labor production efficiency.

[0031] Embodiment 2: This embodiment is basically the same as Embodiment 1, and the same parts will not be repeated. The difference lies in that the second manipulator is not provided to simplify the structure.

[0032] As described above, it is only a preferred embodiment of the present invention, and it does not impose any formal limitations on the present invention. Any simple modification made based on the technical essence of the present invention still falls within the scope of the technical solution of the present invention.

Claims

1. An automatic doffing device for a filament winding machine for chemical fiber industry, comprising a frame, the frame consisting of a top frame, a bottom frame and two vertical frames, characterized in that : The top frame is provided with an upper movable seat, which can move left and right along the top frame through a guide rail pair and an upper driving mechanism, and the bottom frame is provided with a lower movable seat, which can move left and right along the bottom frame through a guide rail pair and a lower driving mechanism; The first manipulator includes a first fixed arm and a first telescopic arm, wherein the first fixed arm is connected to the upper movable seat through a first lifting mechanism, and the first telescopic arm can be telescoped forward and backward along the first fixed arm through a guide rail pair and a first telescopic power mechanism, and a first wire catcher is provided at the front end of the first telescopic arm, which can catch filaments and suck the filaments into a filament temporary storage box through vacuum; The fourth manipulator comprises a fourth fixed arm and a fourth telescopic arm, wherein the fourth fixed arm is connected to the upper movable seat via a fourth lifting mechanism, and the fourth telescopic arm can be telescoped forward and backward along the fourth fixed arm via a guide rail pair and a fourth telescopic power mechanism, and a wire ingot opening and closing chuck mechanism is provided at the front end of the fourth telescopic arm, which can open and close the wire ingot axial fixing chuck; The third manipulator includes a rotating disk, a first rotating arm, a second rotating arm and a claw. The rotating disk is rotatably connected to the lower moving seat through a rotating guide rail pair, and can rotate along a circle through a rotating power mechanism. The lower end of the first rotating arm is rotatably connected to the rotating disk and swings up and down through a first swinging power mechanism. The upper end of the first rotating arm is rotatably connected to the lower end of the second rotating arm and swings up and down through a second swinging power mechanism. The upper end of the second rotating arm is rotatably connected to the rear end of the claw and swings up and down through a third swinging power mechanism. The claw can lift and lower the spindle shaft bracket on the filament winding machine and can replace the spindle.

2. The automatic doffing device for the filament winding machine for the chemical fiber industry according to claim 1 is characterized in that : The second manipulator includes a second fixed arm and a second telescopic arm, the second fixed arm is connected to the upper movable seat through a second lifting mechanism, the second telescopic arm can be extended and retracted forward and backward along the second fixed arm through a guide rail pair and a second telescopic power mechanism, and a second wire catcher is provided at the front end of the second telescopic arm, which can assist in catching the filaments and suck the filaments into the filament temporary storage box through vacuum.

3. The automatic doffing device for the filament winding machine for the chemical fiber industry according to claim 1 is characterized in that The silk ingot opening and closing chuck mechanism includes an opening and closing motor and a chuck plate. The opening and closing motor can drive the chuck plate to rotate, thereby opening and closing the silk ingot chuck.

4. The automatic doffing device for a filament winding machine for the chemical fiber industry according to claim 1, characterized in that The clamping claws are divided into two groups, which are respectively arranged on both sides of the upper end of the second rotating arm, and each group of clamping claws includes two arc halves, which can be opened and closed under the action of power.

5. The automatic doffing device for a filament winding machine for the chemical fiber industry according to claim 1, characterized in that :The first wire catcher is connected to the filament temporary storage box through a wire guide tube, and a vacuum generator is provided on the wire guide tube, and the vacuum generator is connected to the compressed air inlet.

6. The automatic doffing device for a filament winding machine for the chemical fiber industry according to claim 1, characterized in that : The frame is provided with a temporary storage rack for silk ingots and a temporary storage rack for paper tubes, and all power mechanisms are connected to the controller respectively.

7. An automatic doffing method for a filament winding machine for the chemical fiber industry using the automatic doffing device for a filament winding machine for the chemical fiber industry according to any one of claims 1 to 6, comprising the following steps: (1) Wire breaking and wire suction: The first manipulator moves left and right, up and down, and forward and backward, so that the first wire catcher approaches and clamps the filaments. At this time, the filaments are still in the winding state of the winding head; at the same time, the filament cutter automatically cuts off the filaments being wound; then, the cut filaments are automatically sucked by the first wire catcher and enter the filament temporary storage box through the wire guide tube to ensure that the production wire roller does not stop; (2) Remove the silk ingot and replace the paper tube: The third manipulator makes a left-right linear motion and swings up and down, and the claw pulls up the silk ingot shaft bracket on the filament winding machine. After being pulled into place, the silk ingot shaft bracket remains stationary, and the fourth manipulator moves in the left-right, up-down and front-back directions, so that the fourth manipulator opens the silk ingot axial chuck of the fixed paper tube on the silk ingot shaft fixing frame, and then, the claw of the third manipulator clamps the two ends of the silk ingot and removes the silk ingot and places it on the silk ingot temporary storage rack; then, the third manipulator uses the claw to grab the empty paper tube from the paper tube temporary storage rack and automatically installs it on the silk ingot shaft bracket, and the fourth manipulator closes the silk ingot axial chuck; finally, the third manipulator pushes the silk ingot shaft bracket into place, so that the paper tube contacts and presses onto the winding roller, and at this time the empty paper tube begins to rotate at high speed with the winding roller; (3) Wire winding: The first wire catcher automatically pulls the filament head to the wire holder on the right side of the empty paper tube, and winds the filament onto one end of the paper tube; after winding for a certain period of time, the first wire catcher is reset, thus completing a wire dropping process.

8. The automatic doffing method for a filament winding machine for the chemical fiber industry according to claim 1, characterized in that : In step (2) and step (3), the second wire catcher moves together with the first wire catcher, and the second wire catcher serves as a backup wire absorber to ensure that the second wire catcher continues to absorb the filaments after the first wire catcher fails to absorb the filaments.

9. The automatic doffing method for a filament winding machine for the chemical fiber industry according to claim 1, characterized in that : In step (2) and step (3), the silk ingot temporary storage rack and the paper tube temporary storage rack are located on the rear side of the frame, and the third manipulator needs to rotate to put down the silk ingot and take away the paper tube.

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