Power supply device of electronic jacquard machine control system

Abstract

The utility model discloses a power supply device of an electronic jacquard machine control system in the field of electronic jacquard machines. The power supply device comprises a fuse, a power supply filter, a control loop and an output loop, the input end of the fuse is connected with an external power supply, the output end is connected with the input end of the power filter, and the output end of the power filter is respectively connected with the input end of the control loop and the input end of the output loop; the control loop comprises a control transformer, an emergency stop button and an alternating current contactor coil which are connected; the output loop comprises an alternating-current contactor contact, a three-phase dry-type transformer, a bridge rectifier unit and a capacitor filter unit which are connected; and the output loop is used for outputting direct-current voltage to a control system of the electronic jacquard machine. The power supply device can weaken or counteract the influence of power grid fluctuation on the power supply device, improves the stability and reliability of the power supply device, and can manually or automatically cut off the power supply output when an accident occurs, thereby preventing the loss from further expanding, and guaranteeing the safety of the power supply device and a control system.

Description

TECHNICAL FIELD

[0001] The utility model relates to electronic jacquard machine technical field, especially electronic jacquard machine control system's power supply device. BACKGROUND

[0002] Electronic jacquard machine is a modern textile machinery, and its main function is to give the fabric jacquard, similar to the effect of computer embroidery. The working principle of electronic jacquard machine is to realize automation production by using computer technology and electronic control technology, adopts electronic pattern plate to control the pattern of weaving cloth, builds the digital model of pattern plate pattern through electronic computer, and then converts the digital model into electronic pattern plate, and finally realizes automation production through electronic jacquard mechanism.

[0003] Compared with the traditional mechanical jacquard machine, electronic jacquard machine can make more complex patterns by computer control needle selection mechanism.

[0004] The power supply device of electronic jacquard machine control system generally adopts transformer rectification or switch power supply direct centralized power supply, when 380V three-phase alternating current power grid has fluctuation, it is easy to cause interference or breakdown of circuit element, and the existing power supply device is easy to damage, resulting in high failure rate, high maintenance and operation cost. INVENTION CONTENTS

[0005] The application provides a power supply device of electronic jacquard machine control system, solves the problem of weak anti-interference ability in the prior art, and improves the stability and reliability of the power supply device.

[0006] The application provides a power supply device of electronic jacquard machine control system, which comprises:

[0007] A fuse, a power filter, a control loop and an output loop.

[0008] The input end of the fuse is connected with an external power supply, the output end is connected with the input end of the power filter, and the output end of the power filter is connected with the input end of the control loop and the input end of the output loop.

[0009] The control loop comprises a control transformer, an emergency stop button and an AC contactor coil connected.

[0010] The output loop comprises AC contactor contacts, a three-phase dry-type transformer, a bridge rectifier unit and a capacitor filter unit connected, and the output loop is used to output DC voltage to the control system of the electronic jacquard machine.

[0011] The power supply device can weaken or offset the influence of power grid fluctuation on the power supply device, improve the stability and reliability of the power supply device, and manually or automatically cut off the power output when unexpected situations occur, prevent further loss, and ensure the safety of the power supply device and the control system.

[0012] Based on the above embodiments, the application can be further improved as follows:

[0013] In one embodiment of the application, the power supply device further comprises a load cutoff switch, and the output end of the power supply filter is connected to the input end of the control circuit and the input end of the output circuit through the load cutoff switch, respectively.

[0014] In one embodiment of the application, the three-phase dry transformer is used to output two voltages, the bridge rectifier unit includes a three-phase rectifier bridge and a single-phase rectifier bridge, one of the voltages output by the three-phase dry transformer is output as a first output voltage after passing through the three-phase rectifier bridge and the capacitor filter unit, and the other voltage output by the three-phase dry transformer is output as a second output voltage after passing through the single-phase rectifier bridge and the capacitor filter unit. The transformer of the output circuit outputs two voltages, which are rectified by the corresponding rectifier bridge and then filtered by the capacitor filter unit, thereby providing two different voltages to the control system of the electronic jacquard machine, meeting the demand of the control system.

[0015] In one embodiment of the application, the power supply device further comprises a first indicator lamp, and the first indicator lamp is arranged at the output end of the power supply filter. The first indicator lamp is a 380V indicator lamp, which is used to indicate the output voltage state of the power supply filter.

[0016] In one embodiment of the application, the power supply device further comprises a second indicator lamp, and the second indicator lamp is arranged in the control circuit and connected in parallel with the AC contactor coil. The second indicator lamp is a 220V indicator lamp, which is used to indicate the state of the AC contactor coil.

[0017] The one or more technical solutions provided in the embodiments of the application have at least the following technical effects or advantages:

[0018] 1. When the external power grid fluctuates, the power supply filter of the power supply device can weaken or offset the influence of the fluctuation on the power supply device, improving the stability and reliability of the power supply device;

[0019] 2. The output circuit of the power supply device outputs the DC voltage required by the control system of the electronic jacquard machine through the three-phase dry transformer, bridge rectification, and capacitor filtering, but is controlled by the control circuit. When unexpected situations occur in the control system of the electronic jacquard machine, the emergency stop button in the control circuit can be directly pressed to cut off the power output, preventing further loss.

[0020] 3. When the power supply device inside the short circuit, overcurrent, etc. The fuse will directly melt, cut off the external 380V three-phase alternating current, so that the power supply device automatically stop working, prevent loss further expansion. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference signs. In the drawings, the elements or parts are not necessarily drawn according to the actual proportion.

[0022] Figure 1 The structure block diagram of the power supply device of the electronic jacquard machine control system in the embodiment of the application is shown in the figure.

[0023] Figure 2 The circuit structure schematic diagram of the power supply device of the electronic jacquard machine control system in the embodiment of the application is shown in the figure. DETAILED DESCRIPTION

[0024] The present application will be further illustrated below in conjunction with the specific embodiments. It should be understood that these embodiments are only used to illustrate the present application and not used to limit the scope of the present application. After reading the present application, those skilled in the art can make various equivalent modifications to the present application, which all fall within the scope defined by the claims attached to the present application.

[0025] It should be noted that: similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0026] In the description of the present application, it should be noted that the terms "first", "second", "third" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance. It should also be noted that, unless otherwise specified and limited, the terms "set", "mount", "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0027] In the description of the utility model, the illustrative representation of the above terms is not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the utility model and the characteristics of different embodiments or examples without contradiction.

[0028] The power supply device of the electronic jacquard machine control system provided in the embodiments of the application solves the problems of weak anti-interference ability in the prior art, and improves the stability and reliability of the power supply device.

[0029] The technical solutions in the embodiments of the application are as follows to solve the above problems:

[0030] Embodiment:

[0031] As shown in Figure 1 A power supply device of an electronic jacquard machine control system, comprising: a fuse, a power filter, a load cut-off switch, a control loop and an output loop.

[0032] The control loop comprises a control transformer, an emergency stop button and an AC contactor coil connected in sequence, and the output loop is used to control the on-off of the output loop.

[0033] The output loop comprises an AC contactor contact, a three-phase dry-type transformer, a bridge rectifier unit and a capacitor filter unit connected in sequence, and the output loop is used to output a DC voltage to the control system of the electronic jacquard machine.

[0034] The input end of the fuse is connected to an external power supply, and the output end is connected to the input end of the power filter. The output end of the power filter is connected to the input end of the load cut-off switch and the input end of the control transformer. The output end of the control transformer is connected to the emergency stop button and the AC contactor coil in sequence. The output end of the load switching switch is connected to the input end of the AC contactor contact. The output end of the AC contactor contact is connected to the three-phase dry-type transformer, the bridge rectifier unit and the capacitor filter unit in sequence.

[0035] The three-phase dry-type transformer is used to output two voltages. The bridge rectifier unit comprises a three-phase rectifier bridge and a single-phase rectifier bridge. One of the voltages output by the three-phase dry-type transformer is output as a first output voltage after passing through the three-phase rectifier bridge and the capacitor filter unit. The other voltage output by the three-phase dry-type transformer is output as a second output voltage after passing through the single-phase rectifier bridge and the capacitor filter unit. The transformer of the output loop is a double-output voltage. After rectification by the corresponding rectifier bridge and filtering by the capacitor filter unit, two different voltages are output to provide the control system of the electronic jacquard machine, meeting the demand of the control system.

[0036] Optionally, the power supply device further comprises a first indicator lamp, which is arranged at the output end of the power filter. The first indicator lamp is a 380V indicator lamp, which is used to indicate the output voltage state of the power filter.

[0037] Optionally, the power supply device further comprises a second indicator lamp, which is arranged in the control circuit and is connected in parallel with the AC contactor coil. The second indicator lamp is a 220V indicator lamp, which is used to indicate the state of the AC contactor coil.

[0038] As shown in the embodiment, the power supply device of the electronic jacquard control system has the following specific circuit structure: Figure 2

[0039] The 380V three-phase AC power grid is connected to the fuse input end, i.e. the input end of the power supply device. The fuse output terminals L1, L2 and L3 are connected to the input terminals L1, L2 and L3 of the power filter. The output terminal L1' of the power filter is connected to X1 of the 380V indicator lamp and L1 of the load switch. The output terminal L2' of the power filter is connected to X2 of the 380V indicator lamp and L2 of the load switch. The output terminal L3' of the power filter is connected to L3 of the load switch. T1 of the load switch is connected to L1 of the AC contactor normally open contact and L1 of the control transformer. T2 of the load switch is connected to L2 of the AC contactor normally open contact and L2 of the control transformer. T3 of the load switch is connected to L3 of the AC contactor normally open contact. L of the control transformer is connected to L of the fuse. N of the control transformer is connected to X1 of the emergency stop button and N of the fuse. X2 of the emergency stop button is connected to X1 of the 220V indicator lamp and A2 of the AC contactor coil. KM1 is connected to X2 of the 220V indicator lamp and A1 of the AC contactor coil.

[0040] T1, T2 and T3 of the AC contactor normally open contact are connected to 380V, 380V and 380V of the input end of the three-phase dry-type transformer from top to bottom. The output terminals 12V, 12V and 12V of the three-phase dry-type transformer are connected to the input terminals of the three-phase rectifier bridge from top to bottom. The output terminals 16V and 0V of the three-phase rectifier bridge are connected to +16V and GND of the circuit board. +16V and GND of the circuit board are connected to 16V and 0V of the terminal. The upper AC 19V of the three-phase dry-type transformer is connected to the lower AC 19V of the single-phase rectifier bridge. The lower AC 19V of the three-phase dry-type transformer is connected to the upper AC 19V of the single-phase rectifier bridge. 24V and 24G of the single-phase rectifier bridge are connected to +24V and GND1 of the circuit board. +24V and GND1 of the circuit board are connected to 24V and 24G of the terminal. 16V and 0V and 24V and 24G of the terminal are the output terminals of the power supply device.

[0041] Figure 2 ​In the specific embodiment, the 380V indicator light is the first indicator light, and the 220V indicator light is the second indicator light.

[0042] Figure 2 In the specific embodiment, the circuit board is the capacitor filter unit, and a plurality of filter capacitor combinations are arranged on the circuit board.

[0043] The technical solutions in the embodiments of the present application have at least the following technical effects or advantages:

[0044] 1. When the external power grid fluctuates, the power supply filter of the power supply device can weaken or offset the influence of the fluctuation on the power supply device, thereby improving the stability and reliability of the power supply device;

[0045] 2. The output circuit of the power supply device outputs the DC voltage required by the control system of the electronic jacquard machine through a three-phase dry transformer, a bridge rectifier and a capacitor filter, but is controlled by the control circuit; when an unexpected situation occurs in the control system of the electronic jacquard machine, the emergency stop button in the control circuit can be directly pressed to cut off the power output, thereby preventing further loss;

[0046] 3. When a short circuit or overcurrent occurs in the power supply device, the fuse will directly melt and cut off the external 380V three-phase alternating current, so that the power supply device automatically stops working, thereby preventing further loss;

[0047] 4. The power supply device has a simple structure and can use general and mature components, thereby reducing the cost.

[0048] In summary, the power supply device can weaken or offset the influence of the power grid fluctuation on the power supply device, thereby improving the stability and reliability of the power supply device; and when an unexpected situation occurs, the power output can be manually or automatically cut off to prevent further loss and ensure the safety of the power supply device and the control system.

[0049] Although the embodiments of the utility model have been shown and described above, it should be understood that the above embodiments are exemplary and cannot be understood as limiting the utility model, and those skilled in the art can change, modify, replace and transform the above embodiments within the scope of the utility model.

Claims

1. A power supply device for an electronic jacquard control system, characterized by, The power supply device comprises: a fuse, a power filter, a control circuit and an output circuit; an input end of the fuse is connected with an external power supply, an output end of the fuse is connected with an input end of the power filter, an output end of the power filter is connected with an input end of the control circuit and an input end of the output circuit respectively; the control circuit comprises a control transformer, an emergency stop button and an AC contactor coil connected in series; the output circuit comprises AC contactor contacts, a three-phase dry-type transformer, a bridge rectifier unit and a capacitor filter unit connected in series, and the output circuit is used to output DC voltage to a control system of an electronic jacquard machine.

2. The power supply device of claim 1, wherein: The power supply device further comprises a load cut-off switch, and the output end of the power filter is connected with the input end of the control circuit and the input end of the output circuit through the load cut-off switch respectively.

3. The power supply device of claim 1, wherein: The three-phase dry-type transformer is used to output two voltages.

4. The power supply device of claim 3, wherein: The bridge rectifier unit comprises a three-phase rectifier bridge and a single-phase rectifier bridge, one voltage output by the three-phase dry-type transformer is output as a first output voltage through the three-phase rectifier bridge and the capacitor filter unit, and another voltage output by the three-phase dry-type transformer is output as a second output voltage through the single-phase rectifier bridge and the capacitor filter unit.

5. The power supply device of claim 4, wherein: The two voltages output by the three-phase dry-type transformer are AC 12V and AC 19V respectively, and the two voltages are input to the input end of the bridge rectifier unit, rectified and then output as DC 16V and DC 24V by the capacitor filter unit.

6. The power supply device of claim 1, wherein: The power supply device further comprises a first indicator lamp, and the first indicator lamp is arranged at the output end of the power filter.

7. The power supply device of claim 1, wherein: The power supply device further comprises a second indicator lamp, and the second indicator lamp is arranged in the control circuit and connected in parallel with the AC contactor coil.

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