CN201245763Y - Signal transmitting device for industrial sewing machine controller - Google Patents

Abstract

The utility model relates to a signaling device of an industrial sewing machine, which can control the sewing speed, thread cutting, presser foot lifting and stopping. The signaling device of the industrial sewing machine controller comprises a connecting pedal (21), a pull rod (22) capable of moving vertically, and a complete casing body (23) fixed on a sewing machine bed plate (24). A screw pin (10) is horizontally arranged on the side wall of a signaling pull rod (5), the screw pin (10) is inserted into an arc-shaped sliding slot of a drawing rod (11), a horizontal rotating shaft of the drawing rod (11) is fixed on a casing body (2), left and right magnets (12 and 13) are arranged at the lateral part of the rotating shaft of the drawing rod (11), and a Hall sensor (14) is arranged in the corresponding position of the casing body. Through utilizing the characteristic of the Hall sensor that electrical signal with different weakness generated under the condition of sensing magnetic signals in different angles, the utility model changes the ill-structure of the prior art that a plurality of Hall sensors are adopted, through one Hall sensor; therefore, the mechanism part is simplified, the volume is reduced, the cost and the fault rate are lowered, the service life is long, the cost performance is high, and the stability and reliability are good.

Description

A kind of sender unit of industrial sewing machine controller

(1) technical field

The utility model relates to a kind of workpiece of industrial sewing machine, specifically is a kind of sender unit that can control sewing velocity, trimming, presser foot lifter, stop.

(2) background technology

Known, industrial sewing machine is a kind of electromechanical assembly that adapts at a high speed, produces clothes, cloth ornaments in batches, by the motor rotating at high speed conversion of motion is that sewing needle moves up and down and carries out the machinery of sewing operation, in sewing operation, moving up and down of head sewing needle not only arranged, but also adjusting, trimming, the presser foot lifter of sewing velocity must be arranged and action such as stop.

Send, control and carry out as what move more than the industrial sewing machine, be that lower framework at Sewing machines is provided with a pedal, by operating personnel's foot pedal, and the different angle of inclination of control pedal, different action such as can make the workpiece on Sewing machines top produce change sewing velocity, trimming, presser foot lifter, to stop.Such-and-such Sewing machines structure can be fit in enormous quantities, the production and processing of the dress-goods of finalizing the design.

In order to reach the above object, people have adopted following several main modification methods successively.

Mechanical clutch speed adjuster mode, action drove cork contact motor flywheel drive pulley transmission work before and after it converted machinery to by connecting rod, and its major defect is a complicated in mechanical structure, bulky, noise is big, and is fragile, efficient is low, and can only be used on the asynchronous motor.

Next is an electric motor contact speed adjuster mode, it forms the lever speed adjuster by housing, two to three connecting rods, three springs, screw rod contact-cup anemometers, pull lever control electric motor velocity of rotation in certain angle, trimming, presser foot lifter such as stops at job step, and this structure drive disk assembly is more, volume is big, cost is high, stability is bad, and service life is short.

Newer structure is a servo motor multidigit induction type speed adjuster mode, and it is by the mounting bracket angle bar, housing, and two to three connecting rods, three springs, screw rod, a plurality of hall sensor elements etc. are formed the lever speed adjuster.In order to reach the purpose of a plurality of actions of control, it is provided with a plurality of hall sensor elements, and the different angles of pedal drive corresponding different hall sensors, send the different signals that is switched on or switched off, realize different actions, pull lever control servo motor velocity of rotation in certain angle, trimming, presser foot lifter such as stops at job step, this constitutional detail is many, drive disk assembly is also more, and volume is big, cost is high, poor stability, operates insensitive, control not smooth, slow in reacting.

(3) utility model content

The purpose of this utility model provides a kind of simple in structure, make full use of the hall sensor element can produce different strong and weak signals in the certain angle scope characteristics, select part and element less for use, compact conformation, the sender unit of the industrial sewing machine controller of reliable operation to the greatest extent.

The purpose of this utility model is realized by following structure.

A kind of sender unit of industrial sewing machine controller, comprise and connect pedal 21 vertically moving pull bars 22 and the whole housing 23 that is fixed on the sewing machine table 24, it is characterized in that, the sidewall horizontal that sends pull bar 5 at signal is provided with a spiral pin 10, spiral pin 10 inserts in the arc chute of dead man 11, the horizontal rotating shaft of dead man 11 is fixed on the housing 2, the rotating shaft sidepiece of dead man 11 disposes left magnet 12 and right magnet 13, on the corresponding position of housing and left and right sides magnet 12,13 hall sensor 14 is set.

Described signal sends the irony plate material parts of pull bar 5 for font in being, and is divided into upper boom, lower beam and middle horizontal rectangle, at the upper right corner of horizontal rectangle sidewall spiral pin 10.

The upper boom that sends pull bar 5 at described signal is nested with depression bar 17 stage clips 18, screw rod 19, nut 20 successively; The low stem casing that sends pull bar 5 at signal deposits spring 16, following slide plate 9, low sleeve 6.Provide signal to send pull bar 5 and in operation, can automatically reply original position after the pulling up or down, by screw rod 19 and nut 20 can conditioning signal pull bar 5 upper ends pressure.

Adopt the technical program, operating personnel step on the different angle of pedal 21, make pull bar 22 produce different rising or dropping distance, cause being fixed on signal and send also moving of different distance up and down of spiral pin 10 on the pull bar 5, spiral pin 10 inserts in the arc chute of dead man 11, make spiral pin 10 in dead man 11 arc chutes, slide, because the horizontal rotating shaft of dead man 11 is fixed on the housing 2, therefore make dead man 11 to rotate around horizontal rotating shaft, left magnet 12 and right magnet 13 have been disposed in the rotating shaft both sides of dead man 11, they follow dead man 11 to rotate, excited the magnetic signal of different rotary angle with respect to being fixed on hall sensor 14 on the housing, produced in hall sensor 14 and the different signal of telecommunication of the rotational angle corresponding power of size, the signal of telecommunication is controlled then again and is sent different change sewing velocities thereupon, trimming, presser foot lifter, different mechanical actions such as stop.

The beneficial effects of the utility model find expression in: adopt the technical program, hall sensor can produce different strong and weak electricity signals under the magnetic signal condition of induction different angles characteristics have been made full use of, with small number, even a hall sensor is just realized and has changed prior art adopting a plurality of hall sensors, and the bad structure that the on-off switch that hall sensor is only served as out or close uses, corresponding thereupon mechanical mechanism, parts also omit, have simplified.Dwindle volume, reduced product cost, also reduced equipment failure rate.

The technical program does not change operator's the custom of manipulating, and does not therefore have negative effect, and very big marketing value is arranged.

(4) description of drawings

Fig. 1 is the allocation position of sender unit on industrial sewing machine of industrial sewing machine controller;

Fig. 2 is the assembly stereoscopic figure after the assembling of the utility model sender unit;

Fig. 3 is the utility model sender unit part exploded perspective view.

(5) specific implementation method

Further describe structure of the present utility model below in conjunction with accompanying drawing.

Referring to Fig. 2, the support angle bar 4 that sender unit is installed is that installation signalling means housing also is the support that is used for lifting sender unit, 3 sender unit lower houses, 2 sender unit upper shells, 1 sender unit case top lid, they are combined into the housing of sender unit, the control pull bar 5 of sender unit is set range of stretch by demand signals in housing, sender unit pull bar 5 by direction as shown toward drop-down be from the paramount speed control system of low speed, being pulled to and descending point most is maximum speed, neutral position (nature) is a stop position, sender unit pull bar 5 opposite directions up push away one grade (3mm) and provide the trimming signal for the trimming position, sender unit pull bar 5 up pushes away one grade (4mm equals the second gear position) again and lifts the pin semiotic function for the presser foot lifter position provides, sender unit pull bar 5 is as long as push to shadow Tibetan brake function simultaneously toward opposite direction, just just say as long as pull bar 5 up pushes away any one grade and all can provide brake signal through the neutral position earlier, finish other two trimmings and presser foot lifter function again, this function is by being main formula setting requirement step.Bolt 19 is regulated in the top of speed adjuster housing, and the pressure that tightens loose pull bar 5 trimmings and presser foot lifter up and down is user-friendly.

Fig. 3 is a kind of sender unit textural association, sender unit lower house 3 fits in main casing with sender unit upper shell 2 symmetric forms, sender unit pull bar 5 is that (4mm) iron plate dashing pulls into middle font, horizontal line is gone out two typing pins under sender unit pull bar 5 centres and middle font, two big or small equal in length of typing are pressed the vertical pull bar of opposite direction plane, parallel action when the downward limit of font auxiliary signal transmitter pull bar 5 is drop-down in being parallel to, upper right drill with ferrule one screw of font is installed spiral pin 10 in the sender unit pull bar 5.Sender unit pull bar 5 covers are put into downslide sheet 9, following slide plate 9 is a rectangle in the cylindrical, interior rectangle is can be free to slide excessive the cooperation with pull bar 5, following slide plate 9 cylindricals and housing below come up the 3rd round storehouse excessive cooperate freely to slide up and down be rate signal scope district, 9 times roundlets of following slide plate are that cover loads back-moving spring 16 and play the guiding role, following back-moving spring 16 belows pack into low sleeve 6, rectangle structure in low sleeve 6 foreign sides, outer square be to be enclosed within sender unit housing below to come up and prevent to reach up and down left-right rotation in first side storehouse, interior rectangle is excessively to cooperate the easy on and off slip with control pull bar 5.Signal sends pull bar 5 tops and packs into slide plate 8, rectangle in last slide plate 8 cylindricals, cylindrical below controller housing, come up the 5th round storehouse excessive cooperate to slide up and down be trimming and presser foot lifter range of signal district, interior rectangle sends pull bar 5 with signal and excessively cooperates, above last slide plate 8, be inserted in upper reset spring 15 again, the top suit upper sliding sleeve 7 of upper reset spring 15,7 times circles of upper sliding sleeve are set in the upper spring 15 and play the guiding role, square interior rectangle outside upper sliding sleeve 7 tops, square outward is to prevent to move up and down in the 7th square storehouse of cover large-signal transmitter shell, interior rectangle is to send pull bar 5 with signal excessively to cooperate, signal sends corresponding the loading onto in pull bar 5 two ends and glides 9, following back-moving spring 16, low sleeve 6, last slide plate 8, upper reset spring 15, behind the upper sliding sleeve 7, compressions spring in two ends is aimed at corresponding position and is assemblied on the sender unit lower house 3, then the screw on upper right side screw of font in the controller pull bar 5 of pull bar spiral pin 10.Hall sensing 14 packs in the notch on sender unit lower house 3 upper left limits, the yaw of dead man 11 is pasted two magnet, 12 magnet 13 respectively, in the yaw of dead man 11 in the round pin of circle hole sleeve inlet signal transmitter lower house 3 upper left side hall sensor correspondences, round pin is can swing excessive the cooperation with dead man yaw circular hole, dead man 11 other end shaped form chutes pack into pull bar spiral pin interior 10 simultaneously, dead man 11 curved grooves are the pull bar spiral pins 10 that cooperate above the sender unit pull bar 5, sender unit pull bar 5 distance that moves up and down is changed into swing work through the curved groove of pull bar spiral pin 10 and dead man 11, the swing work of dead man 11 is passed to hall sensing 14 through two magnet of yaw and is produced different angle swinging signals, the curved groove of dead man 11 is the distances that move up and down that application curves radius ratio is reduced sender unit pull bar 5, thereby make Hall element 14 obtain effective angle swinging signal, above part is seated and covers sender unit upper shell 2, load onto two diagonal angle screws of surface cover 1 locking, depression bar 17 is put into from sender unit housing 3 tops, 17 one-tenth circles of depression bar are trapezoidal, lower floor is greatly that the working face middle level is inserted in pressure spring 18 smallest tier and will be packed in regulator bolts 19 endoporus and play the guiding role, regulator bolts 19 can be regulated the suitable use of pressure handled easily of depression bar 17, is fixed on support angle bar 4 by four screws of sender unit then.

Operation principle is that sender unit pull bar 5 is toward drop-down, the shoulder effect band slide plate 9 of leaving behind under the font in the sender unit pull bar 5, circle storehouse stroke was high in following slide plate 9 was subjected in about sender unit housing up the 3rd is the speed district, to be pulled to lower dead center be zero-speed to circle storehouse top dead centre to the most at a high speed in the 3rd, at the sender unit pull bar 5 also synchronization action of pull bar spiral pin 10 of leaving behind simultaneously, pull bar spiral pin 10 moves up and down and drives dead man 11 swings, magnet 12 magnet 13 of dead man 11 front end yaws provide the angle swinging signal, the treated control signal that changes into of swinging signal for Hall element 14.It is middle power position (for nature parking spot off position) that sender unit pull bar 5 does not have pulling force and thrust situation, sender unit pull bar 5 is directly pushed to by opposite direction from the work of speed district, following slide plate 9 is pressed in these back-moving spring 16 meetings at present cause the neutral position, the front end face of sender unit pull bar 5 promotes depression bar 17, it is trimming position (3mm) that depression bar 17 is subjected to the effect of pressure spring 18 to be brought to a segment distance, sender unit pull bar 5 is pushed to also synchronization action of while pull bar spiral pin 10, pull bar spiral pin 10 moves up and down and drives dead man 11 swings, magnet 12 magnet 13 of dead man 11 front end yaws provide swinging signal for Hall element 14, swinging signal is treated to change into the work of control signal trimming, sender unit pull bar 5 is pushed to the pressure that comes and is subjected to regulator bolts 19 controls, and nut 20 is to lock fixedly regulator bolts 19 determined pressure positions.When sender unit pull bar 5 is shifted the trimming position onto, the shoulder limit touches slide plate 8 on the middle font of sender unit pull bar 5, last slide plate 8 compression upper reset springs 15 are in up circle storehouse stroke work in the 5th, the interior stroke in circle storehouse is presser foot lifter position (4mm) in the 5th, sender unit pull bar 5 continues to push to also synchronization action of while pull bar spiral pin 10, pull bar spiral pin 10 moves up and down and drives dead man 11 swings, magnet 12 magnet 13 of dead man 11 front end yaws provide the angle swinging signal for Hall element 14, the work of the treated commentaries on classics control signal of angle swinging signal presser foot lifter.When decontroling sender unit pull bar 5 all pulling force and thrust, sender unit pull bar 5 is subjected to down back-moving spring 16, following slide plate 9, and pressure spring 18, the neutral position is got back in the effect of depression bar 17.

Claims (3)

1. the sender unit of an industry seam machine controller, comprise that the connection vertically moving pull bar of pedal (21) (22) respectively is fixed on the whole housing (23) on the sewing machine table (24), it is characterized in that, the sidewall horizontal that sends pull bar (5) at signal is provided with a spiral pin (10), and spiral pin (10) inserts in the arc chute of dead man (11).On the housing (2), the rotating shaft sidepiece of dead man (11) disposes left magnet (12) and right magnet (13) to the horizontal rotating shaft of dead man (11), on the housing position corresponding with left and right sides magnetic (12) (13) hall sensor (14) is set regularly.

2. according to right 1 described sender unit, it is characterized in that signal sends the irony plate material parts of pull bar (5) for font in being, and is divided into upper boom, lower beam and middle horizontal rectangle, at the upper right corner of horizontal rectangle sidewall spiral pin (10).

3. root a tree name right 1 or 2 described industrial sewing machine sender units is characterized in that, the upper boom that sends pull bar (5) at signal is nested with spring (15), depression bar (17) stage clip (18) successively; The lower beam that sends pull bar (5) at signal is nested with slide plate (9) and lower spring (16).

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