CN201077877Y - Single ingot electric machine controlled semiautomatic rotor spinning machine - Google Patents

Abstract

The utility model relates to a semiautomatic rotor spinning machine controlled by single-spindle motor, belonging to a mechanical field of textile, which aims at the disadvantages that the prior semiautomatic rotor spinning machine can not realize the high-speed yarn spinning of above 100,000 rpm and also the full-automatic rotor spinning technique has complicated control and high cost. The utility model is composed of a plurality of similar yarn-spinning spindles, each yarn-spinning spindle comprises a yarn spinner, a yarn-leading roller, a horizontal movable yarn guide device, a reeling device and a semiautomatic joint device, the yarn-leading roller and the reeling device are together powered by a motor arranged at the yarn-spinning spindle, the yarn spinner is arranged with a rotor rotating-speed sensor and a rotor brake mechanism control electromagnet, the rotor rotating-speed sensor is connected with the computer, the semiautomatic joint device, the motor and the rotor brake mechanism control electromagnet are controlled by the computer. The utility model can make the semiautomatic rotor spinning machine with simple control and relative low cost realize the high-speed yarn-spinning of above 100,000 rpm per minute.

Description

Single spindle motor controlled semi-automatic rotor spinning machine

technical field

The utility model belongs to the field of textile machinery, in particular to a semi-automatic rotor spinning machine controlled by a single-spindle motor.

Background technique

The prior art rotor spinning machines can be divided into three categories according to the degree of automation of joints: fully automatic rotor spinning machines, semi-automatic rotor spinning machines, and fully manual jointing rotor spinning machines.

The known basic fully manual piecing rotor spinning machine has a plurality of adjacently arranged working spindle positions, and they respectively have a spinning box for forming the yarn, and a yarn delivery box for drawing the yarn from the spinning box. device, a traverse guide device for cross-winding the yarn and a winding device for winding the yarn around the yarn carrier. When the rotor speed exceeds 60,000 r/min, it is difficult for the rotor spinning machine with full manual piecing to complete the piecing, and the quality of the piecing is poor.

Each working position of the semi-automatic rotor spinning machine also has an indispensable semi-automatic piecing device. The piecing work of the existing semi-automatic rotor spinning machine relies on a semi-automatic piecing device equipped with each working spindle to complete. Since the threading and winding rollers of each spinning position are driven by the long axis and share a power source located at the front or rear of the machine, the threading and winding speeds of each position are consistent, so The semi-automatic rotor spinning machine can only perform the piecing action when the rotor speed is increased to the normal spinning speed. When the rotating speed of the rotor exceeds 100,000 rpm, it is difficult for the semi-automatic jointing device to complete the jointing action; and the rotor is also supported by a direct bearing, and the rotational speed of this direct bearing is generally difficult to exceed 100,000 rpm. Therefore, semi-automatic The rotor speed of the rotor spinning machine is limited to less than 100,000 rpm during actual spinning.

The automatic rotor spinning machine has the highest degree of automation, the highest rotor speed reaches 150,000 rpm, and the investment cost is also the largest. The jointing work of multiple spindle positions of the fully automatic rotor spinning machine is usually completed by means of a joint trolley that travels along multiple spindle positions. When a spindle breaks, the joint trolley moves to the spindle Put the position into the working state, and automatically complete the various actions of the joint, especially the joint trolley takes over the driving and control of the cotton feeding, yarn drawing, yarn winding, etc. of the spindle position, which can be completed when the rotor speed is low Splicing action, after the splicing is completed, the sliver feeding speed, yarn drawing speed and winding speed are increased synchronously with the acceleration of the rotor. When the rotor speed increases to the normal spinning speed, the splicing trolley will feed the , The winding function of the yarn is handed over to this spindle position, so as to achieve the purpose of low-speed joint and high-speed spinning. But this splicing trolley mechanism and control are all extremely complicated, and cost is expensive.

Utility model content

The technical problem to be solved and the technical task proposed by the utility model are to overcome the existing semi-automatic rotor spinning technology that cannot realize high-speed spinning with a rotor speed of more than 100,000 r/min. Due to the defects of extremely complex yarn technology control and high cost, a semi-automatic rotor spinning machine with simple control, relatively low cost, and low-speed jointing and high-speed spinning is provided. For this reason, the present invention adopts following technical scheme:

The high-speed semi-automatic rotor spinning machine is composed of multiple adjacent spinning positions of the same type, and each spinning position includes a spinning device, yarn delivery roller, traverse guide device, winding device and semi-automatic piecing device , it is characterized in that: the yarn drawing roller and the winding device of each spinning position are jointly powered by a motor arranged at the spinning position, and the spinning device is provided with a rotor speed sensor and The rotor brake mechanism controls the electromagnet, the rotor speed sensor is connected to the control computer through a signal line and transmits signals to it, the semi-automatic joint device, the motor and the rotor brake mechanism control electromagnet are connected to the control computer through the signal line Connect and accept its control.

As a further improvement and supplement to the above technical solution, the utility model also includes the following additional technical features:

The motor is a variable frequency motor controlled by a frequency converter, so that the speed of the motor can be continuously and continuously changed as required.

The motor can also be a servo motor.

The motor can also be a stepping motor.

The motor, the yarn drawing roller and the winding roller in the winding device are all equipped with synchronous pulleys, and the synchronous belts are set on the three synchronous pulleys, and the three are connected to ensure that the power output by the individual motor can be accurately transmitted to threading rollers and winding rollers.

The rotor brake mechanism control electromagnet is connected with the rotor brake mechanism of the spinner, and jointly controls the rotor brake mechanism of the spinner with the opening and closing frame of the spinner, so as to achieve brake control on the rotor.

The control computer is a programmable logic controller (PLC).

The utility model can achieve the following beneficial effects: in the semi-automatic rotor spinning machine, a separate motor is used to provide power to the yarn guiding device and the winding device, and the control computer is used to trigger the joint of the semi-automatic joint device, the operation of the separate motor and The rotor brake mechanism controls the work of the electromagnet, which realizes the functions of low-speed joint and high-speed spinning that can only be realized by the automatic rotor spinning machine, and makes a breakthrough in the semi-automatic rotor spinning machine with simple control and relatively low price. The bottleneck of the rotor speed of 100,000 r/min has reached a rotor speed equivalent to the 150,000 r/min of the fully-automatic rotor spinning with complex control and high cost.

Description of drawings

Fig. 1 is a sectional view of a spinning position of the utility model.

Detailed ways

Specific embodiments of the present utility model are described in detail below in conjunction with the accompanying drawings.

A single-spindle motor-controlled semi-automatic rotor spinning machine has multiple spinning positions shown in Figure 1 in the longitudinal direction, and the spinning positions are symmetrically distributed on both sides of the device.

As shown in Figure 1, each spinning position of the utility model includes a spinning device 1 for spinning sliver into yarn, a yarn drawing roller 3, a semi-automatic joint device 4, a traverse guide device 5, a winding Device 6, motor 21 and control computer 2. The spinning device 1 is provided with a rotor speed sensor 26, a rotor braking mechanism control electromagnet 7, a cotton feeding control electromagnet 9, an opening and closing frame 10, a rotor braking mechanism 25, and a rotor cup 24. The winding device 6 includes bobbins Frame 18 and winding roller 17. The synchronous belt pulley 22 is fixedly installed on the motor 21, the synchronous belt pulley 19 is fixedly installed on the winding roller 17, the synchronous belt pulley 14 is fixedly installed on the thread guide roller 3, and the synchronous belt 20 is respectively sleeved on the synchronous belt pulley 14,19, 22, the rotor brake mechanism control electromagnet 7 and the opening and closing frame 10 are connected with the rotor brake mechanism 25 respectively. A sinking electromagnet 13 and a winding start electromagnet 16 are arranged on the semi-automatic piecing device. Yarn drawing roller 3, rotor speed sensor 26, rotor brake mechanism control electromagnet 7, cotton feeding control electromagnet 9, sinking electromagnet 13 are connected to control computer 2 through signal lines, and motor 21 is connected to control computer through frequency converter 12 2 connected. The control computer 2 is also connected with a start button 11 .

The spinning process of a rotor spinning machine is well known: the sliver 8 is fed into the spinning unit 1, in which the sliver is carded and loosened into individual fibers, which are transported by air to the rotor 24. Under the action of the high-speed rotating rotor 24, the fibers are condensed and twisted to form yarns, and the yarns are clamped and pulled by the yarn drawing roller 3 and the yarn pressing roller 15, and the bobbin is driven by the winding roller 17. The yarn is wound into a bobbin, and the yarn is cross-wound through the traversing guidance of the traverse guide device 5, and the bobbin is clamped and rotated by the creel 18. When the bobbin is wound to the required diameter, it is manually dropped to the On the bobbin conveyor belt 23.

Spinning needs to be carried out when the yarn is broken during the spinning process or the spinning is restarted after the package is full. When splicing, the rotating speed of the rotor should not be too high, otherwise it will be difficult to splice or the quality of the splicing will be too poor. The utility model can realize jointing when the rotating speed of the rotor is low, and after the jointing, each rotating part is synchronously accelerated to the speed of normal spinning, and the production efficiency of the semi-automatic rotor spinning machine is greatly improved. The connection process is as follows:

Open the opening and closing frame 10 of the spinning device to manually clean the inside of the spinning device. At this time, the opening and closing frame 10 and the rotor brake mechanism control electromagnet 7 drive the rotor brake mechanism 25 simultaneously to make the rotor 24 stop rotating; After the inside of the spinning device is cleaned, close the opening and closing frame 10 of the spinning device. At this time, the rotor 24 is still stopped by the braking mechanism 25 driven by the braking mechanism control electromagnet 7. When the seed yarn is put into the yarn guiding tube, The manual preparation of the semi-automatic joint is completed; after that, press the start button 11, and the control computer 2 sends a release signal to the braking mechanism control electromagnet 7, and the braking mechanism controls the electromagnet 7 to release, so that the braking mechanism 25 releases the rotor cup 24, and the rotor cup 24 starts to accelerate, the rotational speed of the rotor 24 is monitored by the rotor rotational speed sensor 26, and the monitored signal is fed back to the control computer 2, when the rotational speed of the rotor reaches the set joint speed such as 80,000 rpm, the control computer 2 issues an instruction Start the joint action, control the cotton feeding electromagnet 9, sinking electromagnet 13, and winding start electromagnet 16 according to the set parameters, and complete the joint; during the entire process of rotor acceleration, the motor 21 is controlling the computer 2 and Under the control of the frequency converter 12, the yarn twist is gradually accelerated under the condition of keeping the yarn twist constant. The yarn drawing roller 3 and the winding roller 17 accelerate synchronously. When the rotor accelerates to a normal spinning speed such as 130,000 rpm, the yarn drawing speed And the winding speed is also accelerated to the speed required for normal spinning. This completes the entire splicing process.

Claims (7)

1. The semi-automatic rotor spinning machine controlled by a single-spindle motor is composed of multiple adjacent spinning positions of the same type, and each spinning position includes a spinning device (1), yarn delivery roller (3), traverse The yarn guiding device (5), the winding device (6) and the semi-automatic splicing device (4), are characterized in that: the yarn drawing roller (3) and the winding device (6) of each spinning spindle position are jointly composed of A motor (21) arranged at the spinning position provides power, and the spinning device (1) is provided with a rotor speed sensor (26) and a rotor braking mechanism control electromagnet (7), and the rotor The cup speed sensor (26) is connected with the control computer (2) through a signal line and transmits signals to it, and the semi-automatic joint device (4), motor (21) and rotor brake mechanism control electromagnet (7) are connected through the signal line Be connected with control computer (2) and accept its control. 2. The semi-automatic rotor spinning machine controlled by a single-spindle motor according to claim 1, characterized in that: the rotor brake mechanism controls the electromagnet (7) and the rotor brake mechanism in the spinning device (1) connect. 3. The semi-automatic rotor spinning machine controlled by a single-spindle motor according to claim 2, characterized in that: the motor (21) is a variable frequency motor controlled by a frequency converter. 4. The semi-automatic rotor spinning machine controlled by single-spindle motor according to claim 2, characterized in that: said motor (21) is a servo motor. 5. The semi-automatic rotor spinning machine controlled by a single-spindle motor according to claim 2, characterized in that: said motor (21) is a stepping motor. 6. The semi-automatic rotor spinning machine controlled by a single-spindle motor according to claim 3, 4 or 5, is characterized in that: a synchronous pulley (22) is fixedly installed on the described motor (21), and the yarn drawing roller ( 3) a synchronous pulley (14) is fixedly installed on the top, and a synchronous pulley (19) is fixedly installed on the winding roller (17) in the winding device (6), and is set on the synchronous pulley (22, 14, 19), connect the three. 7. The semi-automatic rotor spinning machine controlled by single-spindle motor according to claim 2, characterized in that: the control computer (2) is a programmable controller.

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