CN202450268U

CN202450268U - Broken line alarm device of embroidering machine

Info

Publication number: CN202450268U
Application number: CN201120540662XU
Authority: CN
Inventors: 陈建峰
Original assignee: Beijing Dahao Technology Co Ltd
Current assignee: Beijing Dahao Technology Co Ltd
Priority date: 2011-12-20
Filing date: 2011-12-20
Publication date: 2012-09-26
Anticipated expiration: 2021-12-20

Abstract

The utility model provides a broken line alarm device of an embroidering machine. The broken line alarm device comprises a detection element for converting movement of an embroidering line into pulse signals, a pulse processing module for outputting different electric signals according to whether pulse signals are received in preset time, a photoelectric encoder for converting spindle rotation performed for controlling an embroidering needle to move vertically into pulse signals and a control module for sending alarm signals according to signals output by the pulse processing module and signals output by the photoelectric encoder. The pulse processing module is formed by a chip and a time adjusting circuit for presetting time, the chip is provided with an input end, a power supply end and an output end, the power supply end is connected with a power supply, the input end is connected with the detection element, and the output end and the photoelectric encoder are respectively connected with the control module. Alarm signals of the broken line alarm device is high in sensitivity and accuracy, and the broken line alarm device solves the technical problem in the prior art that alarm accuracy is influenced by elastic fatigue and vibration of metal wires.

Description

The embroidery machine wire break alarm device

Technical field

The utility model relates to alarm technique, relates in particular to a kind of embroidery machine wire break alarm device, belongs to embroidery machine alarm technique field.

Background technology

Along with the development of textile industry, present clothing is decorated and the demand of pictorial trademark gets more and more, and these all will be accomplished by embroidery.Big industrial demand has not been satisfied in artificial embroidery, and therefore computer embroidering machine arises at the historic moment.

The control system of embroidery machine mainly is made up of tabouret control device, embroidery needle movement control device and wire break alarm device etc.The tabouret control device drives the table plane high-speed motion through two stepper motors of control x direction and y direction, realizes the control to the tabouret coordinate position; Convert rotatablely moving of spindle motor into embroidery pin move up and down through mechanical device; Embroider pin and drive the above and below that the embroidery line is travelled to and fro between cloth; Cooperate the bottom line device, accomplish the embroidery of pattern design, embroider the needle movement control device and control moving up and down of embroidery pin through the rotation of control spindle motor; Because the motion of the motion of tabouret and embroidery pin is high-speed motion, and it is generally thinner to embroider line, therefore, it is recurrent in the embroidery process, broken string occurring.After breaking, machine must be shut down, and just can carry out next step embroidery after recovering to embroider line, and therefore, wire break alarm device is a very important part in embroidery machine, directly has influence on the efficient and the effect of embroidery.

In present embroidery machine product; Realize that the method for reporting to the police automatically generally is in the path that the embroidery line passes through, flexible wire to be set; Make when embroidering line and being in tension with this wire cross and conflict, make wire produce strain through the tension force of embroidering line, when normally embroidering; Be in tension owing to embroider line, this moment, strain wiry remained on a stable status or position range; If the embroidery thread breakage, tension force disappears, and strain wiry disappears and replys nature; Judge the disconnected and continuous of embroidery line through the above-mentioned two kinds of different state of wire; The control system constantly detects state wiry, if detect unusually, reports to the police immediately and stops.

Find that in use embroidery machine relies on wire with the method for carrying out burn out detection that contacts of embroidering line various disadvantages to be arranged at present, has influence on the degree of accuracy of warning.For example, elasticity wiry can change along with increasing of times of fatigue, has influence on the judgement of state wiry.And when embroidery along with the difference of crossing linear velocity, vibrations wiry also cause the inaccurate of warning easily.

The utility model content

The utility model provides a kind of embroidery machine wire break alarm device, is used to overcome defective of the prior art, and the sensitivity and the degree of accuracy of alarm signal are higher, solves in the prior art problem that influences the warning accuracy because of elastic fatigue wiry and vibrations.

The utility model provides a kind of embroidery machine wire break alarm device, and said warning device comprises and is used for the mobile detecting element that converts pulse signal into of embroidering line, is used for according in Preset Time, whether receiving pulse signal exporting the burst process module of different electrical signals, being used for the main shaft that pin up-downgoing action is embroidered in control is converted into the photoelectric encoder of pulse signal and is used for according to the output signal of said burst process module and the control module formation of the output signal transmission alarm signal of photoelectric encoder; Wherein, Said burst process module is made up of chip and the time adjustment circuit that is used for Preset Time; Wherein said chip has input, feeder ear and output; Said feeder ear connects power supply, and said input connects said detecting element, and said output and said photoelectric encoder connect said control module respectively.

Further, said time adjusting circuit is connected by the circuit that forms after electric capacity and resistance and the diode parallel connection and is constituted; The anode of said electric capacity is divided into two branch roads, circuit one end that forms after one of them branch road connects resistance and diode is parallelly connected, and another branch road connects the burst process module; The negative electrode of said electric capacity is divided into two branch roads, one of them branch road ground connection, and another branch road connects the burst process module; The other end of the circuit that forms after said resistance and the diode parallel connection is connected the high level input; The negative electrode of wherein said diode connects said high level input, and anode connects the anode of said electric capacity.

Wherein, said warning device comprises plural burst process module, and the input of each burst process module chip is connected with plural detecting element respectively, and the output of each burst process module chip all connects said control module.

The technique effect of the utility model is: the continuous motion that will embroider line through detecting element converts a series of continuous impulse signal input pulse processing module into; Do not taking place under the situation of broken string; Embroidering line moves with certain speed; Pulse also occurs with certain frequency accordingly; This frequency can be preset in the internal logic circuit of chip through time adjusting circuit, and when the pulse signal frequency of input is suitable with this preset frequency, then chip is exported high level signal; When the pulse signal frequency of input be lower than this preset frequency promptly embroider line broken string or minibreak again persistent movement time interval of causing pulse to occur or to occur elongated, chip output low level signal then; Control module can continue the pulse signal of monitor optical photoelectric coder input; And according to the frequency computation part phase difference of this pulse signal; Judge the embroidery pin according to this phase difference again and whether be in descending actuating length; When chip output be low level signal and embroidering embroider when pin is in descending actuating length the line broken string (can only occur in and embroider in the pin up stroke because of embroidering the line minibreak, and embroider line burn out detection or warning only occur in embroider in the pin downward storke), the control module output alarm signal; Relatively prior art can not receive state and the false alarm of wire self, has improved the sensitivity and the accuracy of alarm signal.

Description of drawings

Fig. 1 is the circuit diagram of the utility model embroidery machine wire break alarm device embodiment one;

Fig. 2 is the structure chart of the utility model embroidery machine wire break alarm device embodiment two.

The specific embodiment

Embodiment one

As shown in Figure 1; The utility model embodiment provides a kind of embroidery machine wire break alarm device, and this warning device comprises and is used for the mobile detecting element 1 that converts pulse signal into of embroidering line, is used for according in Preset Time, whether receiving pulse signal exporting the burst process module 2 of different electrical signals, being used for the main shaft that pin up-downgoing action is embroidered in control is converted into the photoelectric encoder 6 of pulse signal and is used for according to the output signal of burst process module and control module 3 formations of the output signal transmission alarm signal of photoelectric encoder 6; Wherein, Burst process module 2 is made up of chip 5 and the time adjustment circuit 4 that is used for Preset Time, and its chips 5 has input, feeder ear and output, and feeder ear connects power supply; Input joint detection element 1, output and photoelectric encoder 6 be link control module 3 respectively.

As the specific embodiment of the foregoing description, the circuit that time adjusting circuit 4 is formed by electric capacity 41 and resistance 42 and diode 43 parallel connection backs is connected and is constituted; The anode of electric capacity 41 is divided into two branch roads, and one of them branch road connects resistance 42 and diode 43 parallelly connected back circuit one ends that form, and another branch road connects burst process module 2; The negative electrode of electric capacity 41 is divided into two branch roads, one of them branch road ground connection, and another branch road connects burst process module 2; Resistance 42 is connected the high level input with the other end of the circuit that diode 43 parallel connection backs form; Wherein the negative electrode of diode 43 connects the high level input, and anode connects the anode of electric capacity 41.

Detecting element 1 can be selected Hall element or optoelectronic switch for use; And, evenly be interval with some radial gratings on the end face of embroidery line roller over against the end face setting of embroidering the line roller, when embroidery line roller turns over a grating; Detecting element 1 is just exported a pulse; Therefore do not taking place under the situation of broken string, be wrapped in the embroidery line embroidered on the line roller with certain speed when the continuous motion, detecting element 1 will be exported a series of continuous impulse signal and give the burst process module; Pulse occurs with certain frequency; Can carry out the preset frequency setting through the value of adjustment resistance and electric capacity, when the frequency of the pulse signal of input is suitable with this preset frequency, then chip is exported high level signal; When the pulse signal frequency of input be lower than this preset frequency promptly embroider line broken string or minibreak again persistent movement time interval of causing pulse to occur or to occur elongated, chip 5 output low level signals then; Control module 3 can continue the pulse signal of monitor optical photoelectric coder 6 inputs; And according to the frequency computation part phase difference of this pulse signal; Judge the embroidery pin according to this phase difference again and whether be in descending actuating length; When chip 5 output be low level signal and embroidering embroider when pin is in descending actuating length the line broken string (can only occur in and embroider in the pin up stroke because of embroidering the line minibreak, and embroider line burn out detection or warning only occur in embroider in the pin downward storke), control module 3 output alarm signals; Relatively prior art can not receive state and the false alarm of wire self, has improved the sensitivity and the accuracy of alarm signal.

Embodiment two

As shown in Figure 2; On the basis of embodiment one; Warning device comprises plural burst process module 2, and the input of each burst process module chip 5 is connected with plural detecting element 1 respectively, the equal link control module 3 of the output of each burst process module chip 5.

When reality is used; Spindle motor of embroidery machine drives the action of two above heads simultaneously through mechanical structure; Each head has plural passage, all establishes one in each passage and embroiders pin, and each head is accomplished the embroidery of a width of cloth pattern; Each head wears the embroidery line of different colours through being located at embroidery pin in each passage; Every head of embroidery machine forms the child node of a detection, and each passage of each child node subordinate forms a sense channel, can only have a passage in running order in these passages under each child node.

In order effectively to carry out break alarm to entire machine; Warning device through embodiment two detects each passage of each node and each child node subordinate in real time; Shown in Fig. 2 two node; Each child node correspondence is provided with a burst process module 2, and the embroidery line operation that each child node subordinate's n bar passage is all established in 1 pair of this passage of a detecting element detects, and converts detected optical signal into pulse signal and input to burst process module 2; This pulse signal after pulse processing module 2 is handled, exports high level signal or low level signal is given control module 3; If when the output low level signal was given control module 3 after 2 processing of pulse processing module, control module 3 can judge whether at this moment embroider pin is in downward storke according to the pulse signal of photoelectric encoder 6 inputs, is to be in downward storke if embroider pin; Output alarm signal then; Corresponding child node and broken string passage is provided simultaneously, and this point can all be provided with coding through each passage with each child node and each child node subordinate and realize in the program of control module 3, like this; Control module 3 can provide the embroidery thread breakage of which passage that is which child node when sending alarm signal, the personnel of maintaining easily shut down wiring.

What should explain at last is: above each embodiment is only in order to the technical scheme of explanation the utility model, but not to its restriction; Although the utility model has been carried out detailed explanation with reference to aforementioned each embodiment; Those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, perhaps to wherein part or all technical characteristic are equal to replacement; And these are revised or replacement, do not make the scope of each embodiment technical scheme of essence disengaging the utility model of relevant art scheme.

Claims

1. embroidery machine wire break alarm device; It is characterized in that said warning device comprises and is used for the mobile detecting element that converts pulse signal into of embroidering line, is used for according in Preset Time, whether receiving pulse signal exporting the burst process module of different electrical signals, being used for the main shaft that pin up-downgoing action is embroidered in control is converted into the photoelectric encoder of pulse signal and is used for according to the output signal of said burst process module and the control module formation of the output signal transmission alarm signal of photoelectric encoder; Wherein, Said burst process module is made up of chip and the time adjustment circuit that is used for Preset Time; Wherein said chip has input, feeder ear and output; Said feeder ear connects power supply, and said input connects said detecting element, and said output and said photoelectric encoder connect said control module respectively.

2. embroidery machine wire break alarm device according to claim 1 is characterized in that, said time adjusting circuit is connected by the circuit that forms after electric capacity and resistance and the diode parallel connection and constituted; The anode of said electric capacity is divided into two branch roads, circuit one end that forms after one of them branch road connects resistance and diode is parallelly connected, and another branch road connects the burst process module; The negative electrode of said electric capacity is divided into two branch roads, one of them branch road ground connection, and another branch road connects the burst process module; The other end of the circuit that forms after said resistance and the diode parallel connection is connected the high level input; The negative electrode of wherein said diode connects said high level input, and anode connects the anode of said electric capacity.

3. embroidery machine wire break alarm device according to claim 1 and 2; It is characterized in that; Said warning device comprises plural burst process module; The input of each burst process module chip is connected with plural detecting element respectively, and the output of each burst process module chip all connects said control module.