CN201416091Y

CN201416091Y - Sewing machine full-automatic computer thread cutting device

Info

Publication number: CN201416091Y
Application number: CN2009200063522U
Authority: CN
Inventors: 卢汝明
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-03-10
Filing date: 2009-03-10
Publication date: 2010-03-03
Anticipated expiration: 2019-03-10

Abstract

The utility model discloses a sewing machine full-automatic computer thread cutting device, which comprises a belt pulley, a cutter and a control box, wherein the cutter is mounted on one side of a sewing head. Besides, a circuit board employing a single chip microcomputer as a control center is installed inside the control box, a sensor is mounted on the belt pulley, the cutter is connected to anelectromagnetic valve via a rotary shaft, an infrared emission tube is arranged under one side of the cutter, an infrared receiving tube is arranged above the infrared emission tube, a thread suckingtube and a rag sucking joint are arranged under the cutter and connected with a rag collecting barrel through a pipeline, and an air valve relay disposed on the pipeline is connected with an air inlet pipeline. The thread cutting device has the advantages of saving thread materials, improving the output and the quality of products and reducing production cost. Moreover, the rag collecting barrelcollects cloth rags and thread chips which are produced in sewing process, thereby maintaining a clean and sanitary working condition.

Description

Sewing machines full-automatic computer thread cutting device

Technical field

The utility model relates to a kind of Sewing machines, particularly a kind of Sewing machines full-automatic computer thread cutting device.

Background technology

At present, the clothing cloth line tail that sewing device is made out is to shear by the rag knife that is installed in the preceding right side of sewing device, and this rag knife is a fixed cutting tool that cutting edge is downward, is installed on the movable sewing head, another cutter platform is fixed, by move up and down a cloth and the line cut-out of blade.When wanting the tangent line tail, cloth to be taken out down again around under the rag knife of preceding right side of face from sewing needle, move downward cut-out by cutting edge, make the line tail longer so on the one hand, the line that stays on the other hand makes down the end of a thread of a piece of cloth also longer, the waste wire rod also will be by manually cutting off long the end of a thread line tail after clothing has been made.Also have some to be installed in sewing syringe needle side by pneumatic rotary cutter tangent line, this device can improve output, and the end of a thread of clothing and line tail are also very short.But every Sewing machines of this device is all joined a typhoon machine, and in order to make cutter high speed rolling tangential, rotating speed of motor must be very high, and want long-term work, this sampling device can produce very big throat sound, influences working environment, the waste electric energy, can not be according to different clothing technological requirements, reserve suitable the end of a thread line tail, during the trimming tail, earlier clothing back to be moved, allow line suck the tangent line mouth and allow the cutter of rotation cut off, waste man-hour.

Summary of the invention

The utility model provides a kind of and can save line in order to solve the deficiencies in the prior art, improves product yield and quality, reduces the Sewing machines full-automatic computer thread cutting device of production cost.

The technical scheme that its technical problem that solves the utility model adopts is: a kind of Sewing machines full-automatic computer thread cutting device, comprise belt pulley and the cutter that is installed in the first side of sewing, also comprise control cabinet, be equipped with in the described control cabinet with the single-chip microcomputer is the circuit board of control centre, the gauge tap of described control cabinet has been installed on the boots pedal rod, on the described belt pulley sensor is installed, described cutter connects electromagnetic valve by rotating shaft, described cutter one side-lower is provided with infrared transmitting tube, and described infrared transmitting tube top is provided with infrared receiving tube.

Described cutter below is provided with inhales spool and inhales the cloth waste joint, and described suction spool is connected the cloth waste collecting vessel with suction cloth waste joint by pipeline, and described pipeline is provided with gas valve relay, and described gas valve relay links to each other with admission line.

Compared with prior art, the utility model is saved wire rod, has improved the output and the quality of product, has reduced production cost, and the cloth waste collecting box is collected making the cloth fragment, the wire rod particle that produce in the process, has kept the working environment of a clean hygiene.

Description of drawings

Fig. 1 is the assembling schematic diagram of the utility model Sewing machines full-automatic computer thread cutting device;

Fig. 2 is the utility model Sewing machines full-automatic computer thread cutting device belt pulley sensor scheme of installation;

Fig. 3 is the utility model Sewing machines full-automatic computer thread cutting device electromagnetic valve cutter structure schematic diagram;

Fig. 4 is the circuit theory schematic diagram of the utility model Sewing machines full-automatic computer thread cutting device.

Among the figure: 1. electromagnetic valve, 2. infrared transmitting tube is 3. inhaled spool, 4. inhales cloth waste joint, 5. sensor, 6. cloth waste collecting vessel, 7. control cabinet, 8. admission line, 9. gas valve relay, 10. gauge tap, 11. pipeline, 12. infrared receiving tubes, 13. cutters, 14. rotating shafts, 15. belt pulleys.

The specific embodiment

The utility model is described in further detail below in conjunction with accompanying drawing.

Referring to Fig. 1, Fig. 2 and Fig. 3, a kind of Sewing machines full-automatic computer thread cutting device, comprise belt pulley 15 and the cutter 13 that is installed in the first side of sewing, also comprise control cabinet 7, be equipped with in the control cabinet 7 with the single-chip microcomputer is the circuit board of control centre, the gauge tap 10 of control cabinet 7 is installed in rising on the boots pedal rod of right crus of diaphragm, sensor 5 is installed on the belt pulley 15, cutter 13 connects electromagnetic valve 1 by rotating shaft 14, below cutter 13 1 sides, the left side of sewing head is provided with infrared transmitting tube 2, and infrared transmitting tube 2 tops are provided with infrared receiving tube 12.Cutter 13 belows are provided with inhales spool 3 and inhales cloth waste joint 4, inhales spool 3 and is connected cloth waste collecting vessel 6 with suction cloth waste joint 4 by pipeline 11, and pipeline 11 is provided with gas valve relay 9, and gas valve relay 9 links to each other with admission line 8.

Referring to Fig. 4, circuit theory schematic diagram of the present utility model, the alternating current of 220V is through the primary coil of power switch control power supply to transformer T1 and T2, and the alternating current of T1 level outputs to tangent line electromagnetic valve and air draught relay by control valve through the rectification of D1 rectifier bridge after the C1 filtering; T2 time the level alternating current after D2 rectification C2 filtering again through the U3 voltage stabilizing, for electronic components such as single-chip microcomputer and infrared transmitting tube provide stable operating voltage.When function is selected knob, before cut the length adjustment knob and after cut the length adjustment knob and configure after, when program control switch is connected, single-chip microcomputer U4 begins to receive the signal from the sensor that is installed in belt pulley, when the signal of collecting from the belt pulley sensor equates with the setting value of before cutting, single-chip microcomputer transmits control signal to U2 and control air draught relay air draught of U1 optocoupler and electromagnetic valve tangent line, after cutting operation before finishing, single-chip microcomputer begins to accept to be installed in the signal of the infrared receiving tube of the first side of sewing, when tailoring cloth does not cover infrared transmitting tube, infrared receiving tube receives the infrared ray of infrared transmitting tube, change into the signal of telecommunication and be transported to interface microcontroller, cut after single-chip microcomputer recognizes and will carry out and operated, begin to accept to be installed in the signal of the sensor of belt pulley, when the signal that receives and after cut the length adjustment knob setting value cut operation after carrying out when equating.

Operation principle of the present utility model: when electromagnetic valve was switched on up adhesive, cutter rotated tangent line, after the electromagnetic valve outage, was resetted by the springback in the electromagnetic valve, and cutter also is rotated and resets; Infrared transmitting tube is contained in sewing syringe needle left side, before the tangential cutter, infrared receiving tube is contained in directly over the infrared transmitting tube, when not putting cloth and make, the infrared ray that infrared receiving tube receives infrared transmitting tube emission converts the signal of telecommunication to and is transferred to control cabinet, and the single-chip microcomputer of control cabinet is discerned this state and entered for no cloth, blocks the infrared ray that infrared transmitting tube emits when cloth enters, infrared receiving tube does not receive infrared ray, and this moment, the single-chip microcomputer of control cabinet was discerned this state for the cloth state is arranged; Inhaling spool has one to inhale the line mouth by pipeline in the edge back, when cutting before carrying out, first air draught holds the end of a thread stretching, and cutter just cuts off the line of softness easily like this; Inhale the cloth waste joint and specially the cloth waste that produces in the process of making is collected, and be drawn onto the cloth waste collecting vessel when air-breathing; The sensor that is installed in belt pulley is the detection number of turns that belt pulley turned over, and the following pin pin number of the number of turns that belt pulley turned over and sewing needle and tailoring cloth length have a fixed relationship, so just can cut out satisfied the end of a thread line tail as long as note the number of turns that belt pulley the turns over s operation control by single-chip microcomputer; Control cabinet is to be the control system at center with the single-chip microcomputer, special disposal signal and send control instruction; Air inlet pipe is connected with central gas supply system, when gas valve relay energising adhesive, the gas that pressure is very big directly is blown into the cloth waste collecting vessel by special pipeline, and in inhaling spool and suction cloth waste joint pipeline, produce negative pressure, and the outer atmospheric pressure of pipeline just is pressed into pipeline to the end of a thread cloth waste fast, collects in the cloth waste collecting vessel; Gauge tap is mounted in rising on the boots pedal rod of right crus of diaphragm, when the clamping plate that cloth are clipped in sewing head when pedal are prepared to make, and switch connection, expression prepares to have made, and at this moment, control cabinet is prepared the signal that receiving sensor sended over; Inhaling line inhales cloth broken to be that the gas of suppressing by central gas supply system flows through special pipeline, to make to inhale the line mouth and inhale the broken connection port of cloth to produce negative pressure; If there is not central gas supply system, also can use the blower fan suction device, be provided with the accessory power outlet of control blower fan on control cabinet, the control cabinet panel also is provided with the wind speed of blower fan and adjusts knob, can turn rotation speed of fan down, when being sure to line before will carrying out, control cabinet can improve the power of blower fan, and rotating speed improves, blast strengthens, the end of a thread is inhaled directly, and the broken broken collecting box of cloth that also sucked fast of cloth reduces throat sound and power consumption.

Concrete working method of the present utility model: the cloth inserted clamping plate of sewing head folder is layouted and the distance at the cutter tangent line place of solenoid control is fixed, such as being 4 centimetres, if be adjusted to 1 centimetre cutting the length knob before the control cabinet panel, the end of a thread length of promptly representing cloth is 1 centimetre, make when advancing 3 centimetres (4-1=3 centimetre) when cloth so, cloth also has 1 centimetre apart from the tangent line edge of a knife, at this moment electromagnetic valve energising control cutter tangent line, the end of a thread of shearing of cloth has been exactly 1 centimetre like this, (Sewing machines of different brands and model may be different and the length that belt pulley rotation one circle cloth advances is about 0.15 centimetre, but this can make amendment in the program of single-chip microcomputer by measuring the back), cloth advances 3 centimetres, and belt pulley should rotate 20 circles (3 ÷ 0.15=20 circle).So when the cloth-clip plate that lifts sewing head with the right crus of diaphragm pushes pedals clips cloth when preparing to make, gauge tap is by logical, the program of single-chip microcomputer begins to carry out, signal Deng the sensor of the belt pulley that is mounted in driven by motor, when stepping on the motor clutch of left foot again, belt pulley rotates, control cabinet receives signal, gas valve relay energising air draught earlier is stretching the end of a thread, inhale the cloth waste joint simultaneously and suck the cloth waste collecting vessel making the cloth waste that produces in the process, when belt pulley rotated 20 circles, the single-chip microcomputer of control cabinet was by computing, compare with the adjustment length of panel, when equating, electromagnetic valve energising control cutter tangent line, so just can cut out the end of a thread has been the end of a thread of 1 centimetre, before cut after, gas valve relay outage stops suction.Cloth is in the process of advancing, and cloth covers the infrared transmitting tube that is installed in the sewing head left side, and infrared receiving tube does not receive infrared ray.And control cabinet cuts operation before having carried out after, to gauge tap, the signal of belt pulley sensor does not deal with, but only wait for the signal of infrared receiving tube, when cloth has been sewn into afterbody, do not have cloth to cover the infrared ray that infrared transmitting tube emits this moment, infrared receiving tube receives infrared ray and converts the signal of telecommunication to and deliver to control cabinet, the operation that control cabinet is cut after recognizing and will preparing to carry out, the buttock line length of then cutting is cut the length knob after by the control cabinet panel and is set, such as also being 1 centimetre, the infrared tube in sewing head left side is 3 centimetres apart from the distance of tangential cutter, cloth readvances 3 centimetres so, to the cutter mouth, readvance 1 centimetre then the line tail of cloth just be 1 centimetre, this moment, cutter carried out tangent line, just obtain setly being decided to be 1 centimetre buttock line, and cloth from leave infrared tube to the distance of tangent line be 4 centimetres just (3+1=4 centimetre), the cloth 4 centimetres of belt pulleys that advance will rotate about 27 circles (4 ÷, 0.15 ≈ 27 circle), after cutting operation before so control cabinet has been carried out, wait for that cloth leaves infrared tube, when cloth one leaves infrared tube, control cabinet just begins to accept the signal that the belt pulley sensor sends over, when belt pulley rotates 27 circles, control cabinet just control the solenoid control cutter carry out cloth after cut operation, finish a workflow, accept signal preparation the carrying out procedure operation next time that right crus of diaphragm pushes pedals gauge tap is connected this moment again.In whole tangent line process, this device all carries out automatically as from the foregoing, without Artificial Control, does not influence the operation of making again, and tangential velocity is quick, just tangent line temporarily between and when before cutting air draught inhale line and inhale cloth waste gas, so power consumption is few, throat sound is also few.So can improve the output and the quality of product, can be according to different technological requirements, difform cloth is provided with different the end of a thread thread end lengths, applicability height.

Above-described embodiment, the utility model specific embodiment a kind of more preferably just, the common variation that those skilled in the art carries out in the technical solutions of the utility model scope and replacing all should be included in the protection domain of the present utility model.

Claims

1, a kind of Sewing machines full-automatic computer thread cutting device, comprise belt pulley and the cutter that is installed in the first side of sewing, it is characterized in that, also comprise control cabinet, be equipped with in the described control cabinet with the single-chip microcomputer is the circuit board of control centre, the gauge tap of described control cabinet has been installed on the boots pedal rod, on the described belt pulley sensor is installed, described cutter connects electromagnetic valve by rotating shaft, described cutter one side-lower is provided with infrared transmitting tube, and described infrared transmitting tube top is provided with infrared receiving tube.

2, Sewing machines full-automatic computer thread cutting device according to claim 1, it is characterized in that, described cutter below is provided with inhales spool and inhales the cloth waste joint, described suction spool is connected the cloth waste collecting vessel with suction cloth waste joint by pipeline, described pipeline is provided with gas valve relay, and described gas valve relay links to each other with admission line.

3, Sewing machines full-automatic computer thread cutting device according to claim 1, it is characterized in that, described cutter below is provided with inhales spool and inhales the cloth waste joint, and described suction spool is connected the cloth waste collecting vessel with suction cloth waste joint by pipeline, connects the blower fan suction device on the described pipeline.