Spindle number identification device and method for rotor spinning doffer

Abstract

The invention discloses a spindle number recognition device and method for a rotor spinning doffer, and relates to the field of rotor spinning doffers. The spindle number identification device for the rotor spinning doffer comprises a doffer track, a doffer main body and an RF-ID card reader. According to the spindle number identification device and method for the rotor spinning doffer, an RF-ID label learning mode is entered, the doffer body is moved, each section of RF-ID label is learned into the control panel through the RF-ID card reader, the section number is calibrated, the doffer body walks once from the tail to the head, information of the control panel learning labels can be displayed on the touch screen, and the control panel learning labels are displayed on the control panel. When the doffer main body is powered on at any position, the nearest RF-ID tag is moved and searched, after the RF-ID tag is read, the node number corresponding to the tag is searched, the current position of the doffer main body is determined, initial identification of the spindle number is completed, and the problem that the spindle number is wrong due to interference is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of rotor spinning doffers, in particular to a spindle number identification device and method for a rotor spinning doffer. Background Art

[0002] The rotor spinning doffer is responsible for the automatic replacement of yarn bobbins, package formation control and full bobbin handling.

[0003] When a spindle is full, the rotor spinning doffing machine automatically moves to that spindle and completes the doffing task after aligning with the yarn bobbin. It is very important to obtain the correct spindle number. If an error occurs, the yarn will be doffed at the wrong spindle. There are currently two main methods for obtaining the spindle number on the market.

[0004] The first method is to use a scanner to scan a QR code or barcode to identify the distance information and calculate the spindle distance to obtain the spindle number; Advantages: Absolute position, the absolute spindle number can be identified at any position when powered on, and there will be no spindle number error; Disadvantages: Dust such as cotton wool covers the barcode or scanning head, causing recognition anomalies, and the price is high.

[0005] The second method is to use sensors such as proximity switches to detect the logo of each spindle to realize spindle number recognition; Advantages: no effect from cotton wool and other dust, low price, accurate positioning, fast response of proximity switch, and each spindle can be adjusted individually.

[0006] Disadvantages: After the doffer is powered on, it is necessary to find the zero position at the rear or front of the machine, which may cause spindle number errors due to interference; The present application proposes a spindle number identification device and method for a rotor spinning doffer to solve the above problems. Summary of the Invention

[0007] In response to the shortcomings of the existing technology, the present invention provides a spindle number identification device and method for a rotor spinning doffing machine, which solves the problems of abnormal recognition caused by dust such as cotton wool covering the barcode or scanning head, and the high price, as well as the problem that after the doffing machine is powered on, it is necessary to find the zero position at the rear or front of the machine, which can easily cause spindle number errors due to interference.

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: a rotor spinning doffer spindle number identification device and method thereof, comprising: The doffer track comprises a plurality of cross beams, two groups of upright posts are mounted below the cross beams, and an outer guide rail and an inner guide rail are mounted between each group of upright posts; A doffer body is transmission-connected between the outer guide rail and the inner guide rail, and the doffer body includes a lower mounting frame and an upper mounting frame; An RF-ID card reader is installed on the upper plane of the upper mounting frame. The crossbeam at the intersection of the sections is installed with an RF-ID tag through a mounting bracket. The RF-ID tag is installed corresponding to the RF-ID card reader. A plurality of positioning screws are installed on the outer guide rail, a positioning proximity switch is installed on the upper mounting frame, and the positioning screws are installed corresponding to the positions of the positioning proximity switches.

[0009] Preferably, a drag chain groove is installed on the side of the inner guide rail, the internal transmission of the drag chain groove is connected with a drag chain, and the air supply pipe and cable of the yarn doffer body are placed inside the drag chain.

[0010] Preferably, a front pulley and a rear pulley are respectively installed on both sides of the upper mounting frame, the rear pulley is transmission-connected in the inner guide rail, and the front pulley is transmission-connected in the outer guide rail.

[0011] Preferably, there are two front pulleys, which are installed at the front and rear ends of the upper mounting frame. A head limit sensor and a rear limit sensor are installed on the side of the upper mounting frame. The head limit sensor is installed corresponding to the front pulley at the front end, and the rear limit sensor is installed corresponding to the front pulley at the rear end.

[0012] Preferably, a power pressure wheel cylinder is installed on the upper mounting frame, a servo motor is provided at the output end of the power pressure wheel cylinder, the output shaft of the servo motor is connected to the reducer, a power wheel is installed at the reducer outlet, and the power wheel is squeezed against the side of the outer guide rail.

[0013] Preferably, a control panel installation box is installed in the lower mounting frame, and a control panel and a switching power supply are installed in the control panel installation box. 220Vac is connected to the switching power supply, and the switching power supply outputs 24Vdc. 24Vdc is connected to the control panel power supply and the power supply of all solenoid valves.

[0014] Preferably, the positioning proximity switch is connected to the control panel input signal port, the head limit sensor and the rear limit sensor are connected to the control panel, and the RF-ID card reader is connected to the control panel via an RS485 bus.

[0015] Preferably, a servo driver is installed in the lower mounting frame, and the servo driver is connected to the servo motor through a UVW power line and an encoder line. The servo driver is connected to the control board through a pulse or communication connection, and the control board is connected to the touch screen through a communication line. The touch screen is installed on the lower mounting frame.

[0016] Preferably, the method comprises the following steps: S1: After installing the doffer main body, power the doffer main body; S2: Enter the RF-ID tag learning mode and move the doffer body. Use the RF-ID card reader to learn each section of the RF-ID tag into the control panel and calibrate the section number. The doffer body moves from the rear to the front of the machine. The touch screen will display the information of the control panel learning tag. Once it is confirmed, the section number can be recognized. S3: Debug the positioning of the doffer body and adjust the position of the positioning screws to ensure that each spindle is accurately positioned; S4: When the doffer body is powered on at any position, it moves to find the nearest RF-ID tag. After reading the RF-ID tag, it searches for the node number corresponding to the tag, determines the current position of the doffer body, and completes the initial identification of the spindle number. S5: Walking in the section, receiving the valid signal of the positioning proximity switch, and realizing the increase / decrease counting of the spindle number according to the direction of the motor; S6: Walking within the segment, the control panel outputs the number of servo pulses to assist in the verification and correction of the spindle number. Based on the relationship between the spindle pitch and the servo pulse, it assists in detecting whether the positioning screws are installed in place, and reminds maintenance personnel to perform repairs. S7: When the doffer body passes by the RF-ID tag, the control panel will read the RF-ID tag through the RF-ID reader and find the corresponding section number to calibrate the section number and spindle number data, thereby achieving correct and reliable identification of the spindle number of the doffer body.

[0017] The present invention discloses a spindle number identification device and method for a rotor spinning doffer, which have the following beneficial effects: The rotor spinning doffer spindle number identification device and method thereof enter the RF-ID tag learning mode and move the doffer body, learn each section RF-ID tag into the control panel through the RF-ID card reader, and calibrate the section number. The doffer body moves from the rear to the front of the vehicle, and the information of the control panel learning tag will be displayed on the touch screen. After confirmation, the section number can be identified. When the doffer body is powered on at any position, it moves to find the nearest RF-ID tag. After reading the RF-ID tag, it searches for the section number corresponding to the tag, determines the current position of the doffer body, completes the initial identification of the spindle number, and avoids the problem of spindle number error caused by interference.

[0018] The rotor spinning doffer spindle number identification device and method thereof are as follows: when the doffer main body passes by the RF-ID tag, the control panel reads the RF-ID tag through the RF-ID card reader and searches for the corresponding section number, thereby calibrating the section number and spindle number data, thereby realizing correct and reliable identification of the spindle number of the doffer main body.

[0019] The spindle number identification device and method of the rotor spinning doffer travel within a section, receive a valid signal from a positioning proximity switch, and increase / decrease the spindle number according to the direction of the motor. The spindle number is calibrated and corrected by the servo pulse number output by the control board when traveling within the section. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 This is a schematic diagram of the overall structure of this embodiment; Figure 2 This is a schematic diagram of the connection between the doffer body and the doffer track of this embodiment; Figure 3 Schematic diagram of the internal structure of the doffer main body of this embodiment; Figure 4 This is the electrical connection block diagram of this embodiment.

[0022] In the figure: 1. Doffing machine track; 11. Crossbeam; 12. Upright column; 13. Outer guide rail; 14. Inner guide rail; 15. Drag chain slot; 16. Drag chain; 17. RF-ID tag; 2. Doffing machine body; 21. Lower mounting frame; 211. Control panel mounting box; 212. Servo drive; 22. Upper mounting frame; 221. Front pulley; 222. Rear pulley; 223. Positioning proximity switch; 224. Positioning screw; 225. Machine head limit sensor; 226. Rear end limit sensor; 227. Power pressure wheel cylinder; 228. Servo motor; 229. Power wheel; 3. RF-ID reader. DETAILED DESCRIPTION

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0024] The embodiment of the present application provides a spindle number identification device and method for a rotor spinning doffing machine, which solves the problem that the doffing machine needs to find the zero position at the rear or front of the machine after it is powered on, and interference can easily lead to spindle number errors. The device enters the RF-ID tag learning mode, moves the doffing machine body 2, learns each section of the RF-ID tag 17 into the control board through the RF-ID card reader 3, and calibrates the section number. The doffing machine body 2 moves from the rear to the front of the machine, and the information of the control board learning tag will be displayed on the touch screen. After confirmation, the section number can be identified. When the doffing machine body 2 is powered on at any position, it moves to find the nearest RF-ID tag 17. After reading the RF-ID tag 17, it searches for the section number corresponding to the tag, determines the current position of the doffing machine body 2, completes the initial identification of the spindle number, and avoids the problem of spindle number errors caused by interference.

[0025] When the doffer body 2 passes by the RF-ID tag 17, the control panel will read the RF-ID tag 17 through the RF-ID reader 3 and look for the corresponding section number to calibrate the section number and spindle number data, thereby achieving correct and reliable identification of the spindle number of the doffer body 2.

[0026] When moving within the section, it receives a valid signal from the positioning proximity switch 223 and increases / decreases the spindle number according to the direction of the motor. When moving within the section, the number of servo pulses output by the control board assists in verifying and correcting the spindle number.

[0027] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0028] The embodiment of the present invention discloses a spindle number identification device and method for a rotor spinning doffer.

[0029] According to the attached Figure 1-4 Shown, including: The doffer track 1 comprises a plurality of cross beams 11, two groups of upright posts 12 are mounted below the cross beams 11, and an outer guide rail 13 and an inner guide rail 14 are mounted between each group of upright posts 12; The doffer body 2 is transmission-connected between the outer guide rail 13 and the inner guide rail 14. The doffer body 2 includes a lower mounting frame 21 and an upper mounting frame 22. The RF-ID card reader 3 is mounted on the upper plane of the upper mounting frame 22. The crossbeam 11 at the intersection of the sections is mounted with an RF-ID tag 17 through a mounting bracket. The RF-ID tag 17 is mounted corresponding to the RF-ID card reader 3. The RF-ID reader 3 and the RF-ID tag 17 are waterproof.

[0030] A plurality of positioning screws 224 are installed on the outer guide rail 13 , and a positioning proximity switch 223 is installed on the upper mounting frame 22 . The positioning screws 224 are installed at positions corresponding to the positioning proximity switches 223 .

[0031] The positioning screw 224 can be moved left and right on the outer guide rail 13 and adjusted according to the position of each spindle. After the adjustment is completed, it is tightened and fixed to the outer guide rail 13.

[0032] A drag chain groove 15 is installed on the side of the inner guide rail 14 , and the internal transmission of the drag chain groove 15 is connected to a drag chain 16 , and the air supply pipe and cable of the yarn doffer body 2 are placed inside the drag chain 16 .

[0033] When the doffer body 2 moves, the drag chain 16 moves along with it in the drag chain groove 15 .

[0034] The air supply pipe and cable are fixed and guided by the drag chain 16 so that they move in coordination with the moving parts of the doffing machine body 2, reducing messy distribution. At the same time, the drag chain 16 is used to prevent the air supply pipe and cable from being worn, twisted or externally damaged during movement, thereby extending their service life and reducing malfunctions caused by damage to the air supply pipe and cable during the use of the doffing machine body 2.

[0035] A front pulley 221 and a rear pulley 222 are respectively installed on both sides of the upper mounting frame 22. The rear pulley 222 is transmission-connected to the inner guide rail 14, and the front pulley 221 is transmission-connected to the outer guide rail 13.

[0036] The front pulley 221 and the rear pulley 222 are used to transmit the corresponding outer guide rails 13 and the inner guide rails 14, so as to support the upper mounting frame 22 in the outer guide rails 13 and the inner guide rails 14. At the same time, under the transmission of the front pulley 221 and the rear pulley 222, the upper mounting frame 22 slides between the outer guide rails 13 and the inner guide rails 14, thereby supporting and sliding the yarn doffing machine body 2 in the outer guide rails 13 and the inner guide rails 14.

[0037] There are two front pulleys 221, which are installed at the front and rear ends of the upper mounting frame 22. A head limit sensor 225 and a rear limit sensor 226 are installed on the side of the upper mounting frame 22. The head limit sensor 225 is installed corresponding to the front pulley 221 at the front end, and the rear limit sensor 226 is installed corresponding to the front pulley 221 at the rear end.

[0038] The head limit sensor 225 and the rear limit sensor 226 follow the doffer main body 2 to transmit on the doffer track 1. Under the action of the head limit sensor 225, it is judged whether the doffer main body 2 has run to the head. Under the action of the rear limit sensor 226, it is judged whether the doffer main body 2 has run to the rear. Under the dual judgment of the head limit sensor 225 and the rear limit sensor 226, the positioning accuracy is improved. When the head limit sensor 225 and the rear limit sensor 226 are activated, it is determined that the doffing machine body 2 is in the specified position. At this time, the RF-ID reader 3 on the doffing machine body 2 reads the RF-ID tag 17 and searches for the corresponding section number to calibrate the section number and spindle number data.

[0039] A power pressure wheel cylinder 227 is installed on the upper mounting frame 22, and a servo motor 228 is provided at the output end of the power pressure wheel cylinder 227. The output shaft of the servo motor 228 is connected to the reducer, and a power wheel 229 is installed at the reducer outlet. The power wheel 229 is squeezed against the side of the outer guide rail 13.

[0040] The power pressing wheel cylinder 227 is started to drive the servo motor 228 and the power wheel 229 to move, and the squeezing force between the power wheel 229 and the outer guide rail 13 is controlled to obtain sufficient friction. When the servo motor 228 is started, the power wheel 229 is driven to rotate through the reducer, and the doffer body 2 is driven to move along the doffer track 1; Furthermore, the diameter of the power wheel 229 is larger than the width of the servo motor 228 , so as to prevent the servo motor 228 from contacting the outer guide rail 13 when the power wheel 229 is squeezed against the side of the outer guide rail 13 .

[0041] The speed reducer is used to reduce the rotation speed of the servo motor 228 and increase the torque.

[0042] A control panel installation box 211 is installed in the lower mounting frame 21. The control panel installation box 211 is installed with a control panel and a switching power supply. 220Vac is connected to the switching power supply. The switching power supply outputs 24Vdc. 24Vdc is connected to the control panel power supply and the power supply of all solenoid valves.

[0043] The positioning proximity switch 223 is connected to the control board input signal port, the head limit sensor 225 and the rear limit sensor 226 are connected to the control board, and the RF-ID card reader 3 is connected to the control board via the RS485 bus.

[0044] A servo driver 212 is installed in the lower mounting frame 21. The servo driver 212 is connected to the servo motor 228 through a UVW power line and an encoder line. The servo driver 212 is connected to the control board through a pulse or communication connection. The control board is connected to the touch screen through a communication line. The touch screen is installed on the lower mounting frame 21.

[0045] Working principle: Mount the front pulley 221 and the rear pulley 222 on the corresponding outer guide rail 13 and the inner guide rail 14 to complete the installation of the doffer body 2 and supply power to the doffer body 2; At this time, the RF-ID tag learning mode is entered, the servo motor 228 is started, and the power wheel 229 is driven to rotate through the reducer to drive the yarn doffer body 2 to move along the yarn doffer track 1. The yarn doffer body 2 is moved to learn each section of the RF-ID tag 17 into the control board through the RF-ID card reader 3, and the section number is calibrated. The yarn doffer body 2 moves from the rear of the vehicle to the front of the vehicle, and the information of the control board learning tag will be displayed on the touch screen. After confirmation, the section number recognition can be realized.

[0046] Debug the positioning of the doffer body 2, adjust the position of the positioning screw 224 on the outer guide rail 13, and adjust it according to the position of each spindle to ensure that each spindle is accurately positioned.

[0047] At this time, when the doffer body 2 is powered on at any position, it moves to find the nearest RF-ID tag 17, reads the RF-ID tag 17, searches for the node number corresponding to the tag, determines the current position of the doffer body 2, and completes the initial identification of the spindle number; When the machine moves in the section, it receives a valid signal from the positioning proximity switch 223 and counts the spindle number up / down according to the direction of the motor; When walking in the section, the number of servo pulses output by the control panel assists in verifying and correcting the spindle number. According to the relationship between the spindle pitch and the servo pulse, it assists in detecting whether the positioning screw 224 is installed in place, and reminds the maintenance personnel to perform repairs.

[0048] When the doffer body 2 passes by the RF-ID tag 17, the control panel will read the RF-ID tag 17 through the RF-ID reader 3 and look for the corresponding section number to calibrate the section number and spindle number data, thereby achieving correct and reliable identification of the spindle number of the doffer body 2.

[0049] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A spindle number identification device for a rotor spinning doffer, characterized in that: include: A doffer track (1) comprising a plurality of crossbeams (11), two groups of uprights (12) being mounted below the crossbeams (11), and an outer guide rail (13) and an inner guide rail (14) being mounted between each group of uprights (12); A doffer main body (2) is transmission-connected between the outer guide rail (13) and the inner guide rail (14), and the doffer main body (2) includes a lower mounting frame (21) and an upper mounting frame (22); An RF-ID card reader (3) is mounted on the upper plane of the upper mounting frame (22), and an RF-ID tag (17) is mounted on the crossbeam (11) at the junction of the sections via a mounting bracket, and the RF-ID tag (17) is mounted corresponding to the RF-ID card reader (3); A plurality of positioning screws (224) are installed on the outer guide rail (13), a positioning proximity switch (223) is installed on the upper mounting frame (22), and the positioning screws (224) are installed at positions corresponding to the positioning proximity switches (223).

2. A rotor spinning doffer spindle number identification device according to claim 1, characterized in that: A drag chain groove (15) is installed on the side of the inner guide rail (14), and the internal transmission of the drag chain groove (15) is connected to the drag chain (16), and the air supply pipe and cable of the yarn doffer body (2) are placed inside the drag chain (16).

3. The spindle number identification device of a rotor spinning doffer according to claim 1, characterized in that: A front pulley (221) and a rear pulley (222) are respectively installed on both sides of the upper mounting frame (22); the rear pulley (222) is transmission-connected to the inner guide rail (14); and the front pulley (221) is transmission-connected to the outer guide rail (13).

4. A rotor spinning doffer spindle number identification device according to claim 3, characterized in that: Two front pulleys (221) are provided, and the front pulleys (221) are mounted at the front and rear ends of the upper mounting frame (22). A head limit sensor (225) and a rear limit sensor (226) are mounted on the side of the upper mounting frame (22). The head limit sensor (225) is mounted corresponding to the front pulley (221) at the front end, and the rear limit sensor (226) is mounted corresponding to the front pulley (221) at the rear end.

5. The spindle number identification device of a rotor spinning doffer according to claim 1, characterized in that: A power pressing wheel cylinder (227) is mounted on the upper mounting frame (22), and a servo motor (228) is provided at the output end of the power pressing wheel cylinder (227). The output shaft of the servo motor (228) is connected to a reducer, and a power wheel (229) is mounted at the outlet of the reducer. The power wheel (229) is pressed against the side of the outer guide rail (13).

6. The spindle number identification device of a rotor spinning doffer according to claim 1, characterized in that: A control panel installation box (211) is installed in the lower mounting frame (21), and a control panel and a switching power supply are installed in the control panel installation box (211). 220Vac is connected to the switching power supply, and the switching power supply outputs 24Vdc. 24Vdc is connected to the control panel power supply and the power supply of all solenoid valves.

7. The spindle number identification device for a rotor spinning doffer according to claim 4, characterized in that: The positioning proximity switch (223) is connected to the control panel input signal port, the head limit sensor (225) and the rear limit sensor (226) are connected to the control panel, and the RF-ID card reader (3) is connected to the control panel via the RS485 bus.

8. The spindle number identification device for a rotor spinning doffer according to claim 1, characterized in that: A servo driver (212) is installed in the lower mounting frame (21), the servo driver (212) is connected to a servo motor (228) via a UVW power line and an encoder line, the servo driver (212) is connected to a control board via a pulse or communication connection, the control board is connected to a touch screen via a communication line, and the touch screen is installed on the lower mounting frame (21).

9. A method for identifying spindle numbers of a rotor spinning doffer, according to the device for identifying spindle numbers of a rotor spinning doffer according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1: After the doffer main body (2) is installed, power is supplied to the doffer main body (2); S2: Enter the RF-ID tag learning mode and move the doffer main body (2), learn each section RF-ID tag (17) into the control panel through the RF-ID card reader (3), and calibrate the section number. The doffer main body (2) moves from the rear to the front of the vehicle, and the information of the control panel learning tag will be displayed on the touch screen. After confirming that it is correct, the section number can be recognized; S3: Debugging the positioning of the doffer body (2), adjusting the position of the positioning screw (224), and ensuring that each spindle is accurately positioned; S4: When the doffer main body (2) is powered on at any position, it moves to find the nearest RF-ID tag (17), and after reading the RF-ID tag (17), it searches for the node number corresponding to the tag, determines the current position of the doffer main body (2), and completes the initial identification of the spindle number; S5: Walking in the section, receiving the valid signal of the positioning proximity switch (223), and realizing the increase / decrease counting of the spindle number according to the direction of the motor; S6: walking within the section, the number of servo pulses output by the control panel is used to assist in the verification and correction of the spindle number, and according to the relationship between the spindle pitch and the servo pulse, it is used to assist in detecting whether the positioning screw (224) is installed in place, and to remind the maintenance personnel to perform maintenance; S7: When the doffing machine body (2) passes by the RF-ID tag (17), the control panel reads the RF-ID tag (17) through the RF-ID card reader (3), and searches for the corresponding section number, thereby calibrating the section number and spindle number data, thereby achieving correct and reliable identification of the spindle number of the doffing machine body (2).

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