Weft density and wool height numerical control system of wool top ribbon loom

Abstract

The utility model discloses a wool top ribbon loom weft density and wool height numerical control system, which comprises a circuit board, a pulse output joint, an encoder measuring joint and a nixie tube, the circuit board is provided with a voltage reduction chip, a key group and a single chip microcomputer, and the single chip microcomputer receives signals through an encoder connected in transmission of a main motor. Digital adjustment is carried out according to required weft density, wool height and needle number, and three groups of pulse output are respectively carried out in proportion. The encoder measuring connector is arranged on the circuit board and electrically connected with the single-chip microcomputer, the encoder measuring connector is connected with a control line of the motor through the pulse output connector, three stepping motors or servo motors can be controlled at the same time, and the functions of fast and slow speed adjustment and synchronous rotation of the stepping motors or servo motors are achieved. A stepping motor or a servo motor is adjusted in a key set mode, then the feeding speed is controlled, the feeding precision can reach 0.005 mm, the time for debugging the ribbon loom is shorter, and the debugging efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ribbon looms, in particular to a weft density and wool height numerical control system for a wool strip ribbon loom. Background Art

[0002] A loom is a type of textile machinery. A small loom is a machine used to make woven ribbons. It is usually small in size and suitable for use in a home or small studio. It can easily produce ribbons of various types and sizes. The loom is powered by a motor to improve the efficiency of weaving.

[0003] Since the thickness, density, width and other parameters of the ribbon need to be adjusted by adjusting the motor speed, and the ribbon loom equipment used in the past adjusted and changed the speed through gears, the disadvantage of this method is that it takes a long time to debug the ribbon loom equipment, and the coordination of multiple motors needs to be tested and matched. When providing the weaving wire for the ribbon, it is easy to have the problem of substandard feeding accuracy, which affects the parameters of the finished ribbon. Utility Model Content

[0004] The utility model aims to provide a wool strip weaving machine weft density and wool height numerical control system to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solutions: A wool strip weaving machine weft density and wool height numerical control system, comprising a circuit board, on which a step-down chip, a key group and a single-chip microcomputer are arranged, the step-down chip is used to convert 24V to 5V to power the single-chip microcomputer, and the key group is used to input instructions to the single-chip microcomputer;

[0006] A pulse output connector, which is arranged on the circuit board and electrically connected to the single-chip microcomputer, and the single-chip microcomputer outputs a motor control signal through the pulse output connector;

[0007] An encoder measuring connector, which is disposed on the circuit board and is electrically connected to the single-chip microcomputer, and which transmits the position, speed and rotation direction of the motor output shaft to the single-chip microcomputer;

[0008] A digital tube, which is arranged on the circuit board and electrically connected to the single-chip computer, and is used to display the parameters of the motor;

[0009] By inputting commands through the key group, the microcontroller receives the control commands and controls the operation of the motor, realizing the electric control of the motor, making the control more stable and accurate, and making it more convenient to debug the loom.

[0010] Furthermore, a buzzer is provided on the circuit board, and the buzzer is electrically connected to the single-chip computer. A shell is sleeved on the surface of the circuit board. The surface of the shell is provided with a sound hole and a connector mounting hole. The sound hole is close to the buzzer to prevent the shell from blocking the propagation of the buzzer sound. The pulse output connector, encoder measurement connector and power connector are exposed from the shell through the mounting hole to facilitate wiring.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model is connected to the control line of the motor through a pulse output connector, and can control three stepper motors or servo motors at the same time, realizing the speed adjustment and synchronous rotation function of the stepper motor or servo motor, and using a key group to adjust the stepper motor to control the feeding speed. The feeding accuracy can reach 0.005mm, and the time used for debugging the ribbon loom is also shorter, thereby improving the debugging efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A circuit diagram of the utility model;

[0013] Figure 2 It is a front view of the housing of the utility model;

[0014] Figure 3 It is a schematic diagram of the back side of the shell of the utility model.

[0015] In the figure: 1. Buck chip; 2. Pulse output connector; 3. Encoder measurement connector; 4. Single chip microcomputer; 5. Key group; 6. Buzzer; 7. Digital tube driver chip; 8. Digital tube; 9. Shell; 10. Connector mounting hole; 11. Sound outlet hole; 12. Circuit board; 13. Power connector. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0017] See also Figure 1-3 The utility model provides a technical solution: A wool strip weaving machine weft density and wool height numerical control system, including a circuit board 12, on which a step-down chip 1, a button group 5 and a single-chip computer 4 are arranged, the step-down chip 1 is used to convert 24V to 5V to power the single-chip computer 4, and the button group 5 is used to input instructions to the single-chip computer 4;

[0018] The button group 5 is electrically connected to the single-chip computer 4. The model of the buck chip 1 is PW2312 or PW2330. PW2312 is a DC-DC synchronous buck converter chip with an input voltage range of 4V-30V, a maximum load current of 1.2A, an adjustable output voltage, a high frequency of 1.4MHZ, and can use chip inductors to save space. It adopts the SOT23-6 package form;

[0019] PW2330 has developed a high efficiency synchronous step-down DC-DC converter with 3A output current. PW2330 operates in a wide input voltage range of 4.5V to 30V with integrated main switch and synchronous switch, with very low RDS(ON) to minimize conduction loss. PW2330 adopts a proprietary instantaneous PWM structure to achieve fast transient response suitable for high step-down applications and high efficiency under light load;

[0020] The model of microcontroller 4 is STC89C52, which is a low-power, high-performance CMOS 8-bit microcontroller with 8K in-system programmable Flash memory. On a single chip, it has a smart 8-bit CPU and in-system programmable Flash, which can accurately and stably control the stepper motor;

[0021] A pulse output connector 2, wherein the pulse output connector 2 is disposed on the circuit board 12 and is electrically connected to the single-chip microcomputer 4, and the single-chip microcomputer 4 outputs a motor control signal through the pulse output connector 2;

[0022] An encoder measuring connector 3, which is disposed on the circuit board 12 and is electrically connected to the single-chip microcomputer 4, and which sends the position, speed and rotation direction of the motor output shaft to the single-chip microcomputer 4;

[0023] The digital tube 8 is arranged on the circuit board 12 and is electrically connected to the single chip computer 4. The digital tube 8 is used to display the parameters of the motor. The digital tube 8 can display the wool height and the weft density needle number, which is convenient for digital display of the ribbon loom.

[0024] In this embodiment, if Figure 1 As shown, a digital tube driving chip 7 is installed on the circuit board 12, and the digital tube driving chip 7 is electrically connected between the single-chip computer 4 and the digital tube 8. The model of the digital tube driving chip 7 is MAX7219 or 74HC595.

[0025] In this embodiment, if Figure 1 and Figure 3 As shown, a power connector 13 is provided on the circuit board 12, and the power connector 13 is electrically connected to the step-down chip 1. The power connector 13 is connected to a 24V power supply. The power connector 13 can be directly plugged in to supply power, and wiring is convenient.

[0026] In this embodiment, if Figure 1 and Figure 3 As shown, a buzzer 6 is provided on the circuit board 12, and the buzzer 6 is electrically connected to the single-chip computer 4. The working state of the stepper motor is detected through the encoder measurement connector 3. When the working state of the stepper motor deviates from the set parameters, the buzzer 6 emits an alarm sound, which is convenient for the staff to find the problem in time.

[0027] In this embodiment, if Figure 1 and Figure 3 As shown, the surface of the circuit board 12 is sleeved with a shell 9, and the surface of the shell 9 is provided with a sound hole 11 and a connector mounting hole 10. The edge of the shell 9 has four round holes, and the shell 9 can be fixed with screws. The pulse output connector 2, the encoder measurement connector 3, and the power connector 13 are exposed through the mounting holes and can be plugged in. The sound hole 11 can diffuse the sound of the buzzer 6.

[0028] Specifically, when in use, the control line of the stepper motor on the loom is connected to the pulse output connector 2, the connector of the encoder is connected to the encoder measurement connector 3, the power supply is plugged into the power connector 13, and the control command is input to the single-chip microcomputer 4 through the button group 5. The single-chip microcomputer 4 controls the operation of the stepper motor or servo motor through the pulse output connector 2. The operation of the stepper motor or servo motor is monitored by the encoder. The encoder sends the operating status of the stepper motor or servo motor to the single-chip microcomputer 4, and the single-chip microcomputer 4 displays the operating status of the stepper motor on the digital tube 8 to achieve visual display, which is convenient for the staff to debug the operation of the stepper motor. The single-chip microcomputer 4 controls the stepper motor or servo motor with higher accuracy, which can speed up the commissioning of the loom.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wool strip weaving machine weft density and high numerical control system, characterized in that: include: A circuit board (12), wherein a voltage-reducing chip (1), a button group (5) and a single-chip microcomputer (4) are provided on the circuit board (12), wherein the voltage-reducing chip (1) is used to convert 24V to 5V to supply power to the single-chip microcomputer (4), and the button group (5) is used to input instructions to the single-chip microcomputer (4); A pulse output connector (2), the pulse output connector (2) being arranged on a circuit board (12) and electrically connected to a single-chip computer (4), the single-chip computer (4) outputting a motor control signal via the pulse output connector (2); An encoder measurement connector (3), the encoder measurement connector (3) being arranged on a circuit board (12) and electrically connected to a single-chip computer (4), the encoder measurement connector (3) transmitting the position, rotation speed and rotation direction of a motor output shaft to the single-chip computer (4); A digital tube (8), the digital tube (8) being arranged on a circuit board (12) and electrically connected to a single-chip computer (4), the digital tube (8) being used to display parameters of the motor.

2. A wool strip weaving machine weft density and height numerical control system according to claim 1, characterized in that: A digital tube driving chip (7) is mounted on the circuit board (12), and the digital tube driving chip (7) is electrically connected between the single-chip computer (4) and the digital tube (8).

3. According to claim 1, a wool strip weaving machine weft density and height numerical control system is characterized by: The circuit board (12) is provided with a power connector (13), and the power connector (13) is electrically connected to the step-down chip (1).

4. The weft density and height numerical control system of a wool strip weaving machine according to claim 1, characterized in that: A buzzer (6) is provided on the circuit board (12), and the buzzer (6) is electrically connected to the single-chip computer (4).

5. The weft density and height numerical control system of a wool strip weaving machine according to claim 1, characterized in that: The surface of the circuit board (12) is sleeved with a housing (9), and the surface of the housing (9) is provided with a sound outlet hole (11) and a connector mounting hole (10).

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