CN1912223B

CN1912223B - Gear differential feed mechanism of moving forward and backward of horizontal cylinder type sewing machine

Info

Publication number: CN1912223B
Application number: CN2005100900078A
Authority: CN
Inventors: 卓瑞荣
Original assignee: XINGRUI SEWING MACHINE CO Ltd
Current assignee: XINGRUI SEWING MACHINE CO Ltd
Priority date: 2005-08-09
Filing date: 2005-08-09
Publication date: 2011-10-12
Anticipated expiration: 2025-08-09
Also published as: CN1912223A

Abstract

The invention discloses a cross solid bowl type sewing machine fore-and-aft movement tooth differential feed mechanism used to adjust feeding speed. It uses a main shaft connected to the sewing machine powder supply to drive front and back rocking shafts to form luffing motion while main shaft running to drive fore-and-aft movement tooth to form feeding action. The front and back rocking shafts are connected with front and back oscillating arms to form oscillating unit set clump weight and pulling piece to control fore-and aft movement tooth moving distance to produce different closing thread effects.

Description

Gear differential feed mechanism of moving forward and backward of horizontal cylinder type sewing machine

Technical field

The present invention relates to a kind of horizontal cylinder type sewing machine, the particularly a kind of horizontal cylinder type sewing machine that can adjust the feed distance distance of forward and backward mobile tooth respectively.

Background technology

At present along with the maturation and the material development of science and technology of textile industry technology, various material characteristic and the different cloth of traditional cloth have appearred, in addition, raising along with economic level, people more and more pay attention to the suitable of appearance dress, therefore, cooperate the design of the various complexity of designer, therefore bind also must improve to some extent.

The Sewing machines of early stage single transfer teeth, the function of its transfer teeth is only to provide cloth is brought into the sewing position and given sewing, if will change the spacing (being commonly called as the thickness pin) of thread, because the motor rotary speed of Sewing machines is constant, so immovable words of number of times of pin under the knitting needle, then need only change the stroke distances of transfer teeth, the amount of cloth that transfer teeth is brought into can be increased or reduces and reach the purpose of thickness pin.Yet in the face of the cloth (as having elastomeric cloth) of current new kenel and the different designs (as being formed with fold behind the sewing naturally) of dress ornament, the Sewing machines of above-mentioned single transfer teeth obviously is not enough to deal with.Before so employing has mostly at present, the Sewing machines of latter two transfer teeth is dealt with, wherein, the function of rear transfer teeth is equivalent to the function of above-mentioned single transfer teeth, if can change its shift motion, then can control the thickness pin of sewing cloth, the function of front transfer teeth then needs to adjust in response to the shift motion of rear transfer teeth, make the rear end go into the cloth of sewing position than slow-motion, because of the cloth amount of bringing into of front transfer teeth and the cloth amount of bringing into identical more or less (being commonly called as differential ratio) of rear transfer teeth, promptly can produce the different situations of sewing face smooth or compress or fold, can tackle the design of elastomeric now cloth and various complexity like this.

But take a broad view of present horizontal cylinder type sewing machine on the market, none have can control adjustment respectively before, the Sewing machines of the shift motion of latter two transfer teeth (being thickness pin and differential ratio), " the Sewing machines " of No. the 541377th, the Taiwan patent announcement of being applied for before the inventor for example with front differential feeding, regulating and controlling mechanism, the technology contents of this invention mainly is to utilize a front differential feeding, regulating and controlling mechanism, the responsiveness speed of mobile tooth before adjusting, comprising: a swing component, one first, two, three, four moving parts, one guiding mechanism, an and power transmission shaft, be subjected to the rear differential feed drive mechanism of Sewing machines and move at front differential feeding, regulating and controlling mechanism, can drive front transfer teeth moves reciprocatingly, and above-mentioned front differential feeding, regulating and controlling mechanism be provided with one change this before the guiding mechanism of mobile tooth translation reciprocating feed distance, and when this front differential feeding, regulating and controlling mechanism running, pull this guiding mechanism, the operating distance of mobile tooth before can adjusting.The operating distance of mobile tooth before though this invention can be adjusted, but do not have the translation reciprocal distance of adjusting the mobile tooth in back, but mobile tooth changes and its operating distance of related change before being subjected to this, so before can't adjusting this respectively, the shift motion of the mobile tooth in back, can't reach the desired purpose of adjusting sewing thickness pin and differential ratio arbitrarily respectively of operator relatively, when need are used in special cloth, need the design of special sewing density, or when making cloth produce the demand of aesthetic of fold, have the operator and can arbitrarily adjust the Sewing machines of sewing thickness pin and differential ratio respectively, real in making Sewing machines dealer urgent problem.

Summary of the invention

Main purpose of the present invention is to solve the defective that exists in the above-mentioned prior art, for avoiding the existence of this defective, the invention provides a kind of horizontal cylinder type sewing machine front and back and moves gear differential feed mechanism of moving forward.

Include a main shaft that is connected in described Sewing machines power source according to moving gear differential feed mechanism of moving forward before and after the horizontal cylinder type sewing machine of the present invention; Two axis of rockings, described two axis of rockings be with the axis parallel of main shaft but non-and this axle center coaxially form be articulated on the described main shaft, and be subjected to described main shaft drives to form one and swing up and down stroke, one of described two axis of rockings for correspondence described before mobile tooth be preceding axis of rocking, another is the back axis of rocking for the mobile tooth in the described back of correspondence; One swing unit is articulated in described front or rear axis of rocking, includes the front swing arm and the rear-swing arms of the described forward and backward mobile tooth feed distance of two corresponding controls; Two adjustment units include two balancing weights and two that are articulated in described forward and backward swing arm and are fixedly arranged on pulling piece on the described balancing weight, respectively in order to adjust described before the translation reciprocating feed stroke of the mobile tooth of mobile tooth or back.

According to moving gear differential feed mechanism of moving forward before and after the horizontal cylinder type sewing machine of the present invention, the operator can control each adjustment unit respectively, move left and right stroke with the forward and backward mobile tooth of controlling its interlock respectively, adjust the forward and backward mobile tooth translation reciprocating feed stroke distances of corresponding best feeding cloth at cloth, the sewn designs of unlike material characteristic, thereby can reach the purpose of adjusting sewing thickness pin and differential ratio respectively.

Description of drawings

Fig. 1 is a stereoscopic schematic diagram of the present invention.

Fig. 2-1, Fig. 2 the-the 2nd, STRUCTURE DECOMPOSITION schematic diagram of the present invention.

Fig. 2-3, Fig. 2 the-the 4th, the schematic diagram of part combination example of the present invention.

Fig. 3-1, Fig. 3-2, and Fig. 3-the 3rd, the action schematic diagram of embodiments of the invention.

Fig. 3-4, Fig. 3 the-the 5th, the action schematic diagram of another part of embodiments of the invention.

Fig. 4-1, Fig. 4 the-the 2nd, the part schematic diagram of embodiments of the invention.

Fig. 5-1, Fig. 5 the-the 2nd, the schematic diagram of another part of embodiments of the invention.

Fig. 6 is the schematic diagram of embodiments of the invention.

The specific embodiment

Relevant detailed description of the present invention and technology contents, existing accompanying drawings is as follows:

See also Fig. 1, Fig. 2-1, and shown in Fig. 2-2, be respectively stereoscopic figure of the present invention and STRUCTURE DECOMPOSITION schematic diagram, as shown in the figure, the present invention is a kind of differential feed mechanism of moving forward 2 of horizontal cylinder type sewing machine 1 front and back tooth, be main shaft 3 (not shown) that are connected in this horizontal cylinder type sewing machine 1 power source with, articulate to drive with the axis parallel of main shaft 3 but the non-preceding axis of rocking 10 coaxial with this axle center, should be subjected to this main shaft drives formation one to swing up and down stroke by preceding axis of rocking 10, be arranged with first eccentric bushing 11 and second eccentric bushing 12 of two two ends off-centre before being somebody's turn to do on the axis of rocking 10, one end of this first eccentric bushing 11 is pivoted with a coupled arm 14, the other end of this coupled arm 14 is pivoted with a crank 15 that is connected in a back axis of rocking, forms and swings up and down in order to drive a back axis of rocking 20; In addition be provided with one and include front swing arm 31 in a termination of the other end of first eccentric bushing 11 and second eccentric bushing 12, the swing unit 30 of rear-swing arm 31 ', one termination of this front swing arm 31 is located at this second eccentric bushing 12, this rear-swing arm 31 ' is arranged in the other end of this first eccentric bushing 11, the other end of this front swing arm 31 and this rear-swing arm 31 ' is with a pivot 311,311 ' is articulated with first connecting rod 312,312 ' and second connecting rod 313, an end of 313 ', and at this first connecting rod 312,312 ' the other end is articulated in an adjustment unit 40,40 ', see also again shown in Fig. 2-3 and Fig. 2-4, this adjustment unit 40,40 ' comprises one with pivot 41,41 ' is connected to this first connecting rod 312,312 ' balancing weight 42,42 ', this balancing weight 42,42 ' also is provided with a pulling piece 43,43 ', this pulling piece is with a tumbler 46,46 ' is arranged in a sleeve 45,45 ' and be located at this balancing weight 42, on 42 ', make this balancing weight 42 in order to pull, 42 ' produces displacement, and is provided with a scale spare 44,44 ' in order to show should balancing weight 42,42 ' residing position; Again at this second connecting rod 313,313 ' the other end is pivoted with a transmission arm group 50,50 ', in order to articulate a fixing power transmission shaft 51, an end of 51 ', this power transmission shaft 51,51 ' the other end is with a displacement arm group 60,60 ' with positioning piece 61,61 ' be arranged in one be provided with before the preceding movable block 70 of the mobile tooth 81 of mobile tooth 71 or back or the spacing hole 72 that the back is offered on the

movable block

80,82, in order to form the front and back feed motion of the mobile tooth 72 of mobile tooth 71 and back before this, be provided with recess 73 in the both sides of this preceding movable block 70 and back movable block 80 again, 83, connect and establish two protuberances 13 that correspondence was convexly equipped with and was eccentric in this preceding axis of rocking 10 and back axis of rocking 20 1 ends, 21, in order to form the stroke that swings up and down of the mobile tooth 81 of mobile tooth 71 and back before this.

Please consult Fig. 3-1 simultaneously, Fig. 3-2, and shown in Fig. 3-3, it is mobile tooth action schematic diagram of the present invention, and the manner of execution of the mobile tooth 81 of mobile tooth 71 and back is identical before being somebody's turn to do, so as shown in the figure, and later mobile tooth 81 is example: this main shaft 3 is that its axle center rotation is fixed and complied with in the axle center, drive this swing unit 30, and be located at the adjustment unit 40 on this swing unit 30,40 ' when being in a position, this swing unit 30 is because of two eccentric bushings 11 on the swinging axle 10 before being sheathed on, 12 and form one and swing up and down action, make this swing unit 30 drive above-mentioned displacement arm group 50,50 ', make this displacement arm group 50,50 ' by this corresponding power transmission shaft 51,51 ' drives this corresponding preceding movable block 70 or back movable block 80, makes this

movable block

70,80 form translation reciprocating action.

Please consult simultaneously shown in Fig. 3-4 and Fig. 3-5, it is the action schematic diagram of mobile tooth of the present invention, and the manner of execution of the mobile tooth 81 of mobile tooth 71 and back is identical before being somebody's turn to do, so as shown in the figure, and later mobile tooth 81 is an example: this adjustment unit 40,40 ' when being in an other position, this pulling piece 43,43 ' makes this balancing weight 42,42 ' moves, and move the second connecting rod 313 of this corresponding swing arm simultaneously, 313 ' and corresponding transmission arm group 50,50 ', cause this corresponding power transmission shaft 51,51 ' rotatable radius of gyration reduction or increase, the reduction of this radius of gyration or increase, form this corresponding displacement arm group 60,60 ' at this spacing hole 72, translation reciprocating stroke in 82 is apart from reducing or increasing, like this, the user can be optionally suture density and pull this pulling piece 43,43 ' is shown in scale spare 44 to institute's correspondence table, scale on 44 ' is to adjust the translation reciprocating feed stroke distances of the mobile tooth 81 of mobile tooth 71 or back before this.

Please consult Fig. 4-1 simultaneously, Fig. 4-2, Fig. 5-1, and shown in Fig. 5-2, be respectively the action relationships schematic diagram of preceding mobile tooth 71 of the present invention or the mobile tooth 81 in back: the action that swings up and down of this preceding axis of rocking 10 is to be arranged in this corresponding recess 73 of being located at preceding movable block 70 by this protuberance 13, in order to form the feeding that swings up and down of mobile tooth 71 before this, the coupled arm 14 of this preceding axis of rocking 10 of above-mentioned connection and the crank 15 that is connected thereof, swing up and down in order to form these back axis of rocking 20 formation, and be similarly by the protuberance 21 of being located at this back swinging axle 20 be arranged in to should the back movable block 80 recess 83, and form the feeding that swings up and down of the mobile tooth 81 in this back, should before the translation reciprocating feed of the mobile tooth 81 of mobile tooth 71 and back then by this swing unit 30, the transmission arm group 50 of this corresponding connection, 50 ' and the displacement arm group 60 of this corresponding connection, 60 ' and drive the preceding movable block 70 or the back movable block 80 translation reciprocating feeds of this corresponding connection; Shown in Fig. 4-1 and Fig. 4-2, the spacing hole of offering on the movable block 70 before being somebody's turn to do 72 wears wherein for the positioning piece 61 ' of this displacement arm group 60 ', and be connected in the spacing hole 82 that is opened in this back movable block 80, like this, the displacement of this keeper 61 ' forms the displacement of the preceding movable block 80 in back, and be subjected to the adjustment of this corresponding adjustment unit 40 ', and make the displacement of keeper 61 ' in these spacing hole 72 formed spaces increase because of the change of this adjustment unit 40 ' or to reduce, and, and form translation reciprocating action because of the mobile tooth 81 in this back is fixedly arranged on this back movable block 80; Shown in Fig. 5-1 and Fig. 5-2, this displacement swing arm 60 keeper 61 of establishing that connects is arranged in the spacing hole 82 that this back movable block 80 offered, like this, this keeper 61 is subjected to the drive of this displacement arm group 60, form the displacement of this preceding movable block 70, and be subjected to this corresponding adjustment unit 40 can make the translation reciprocating feed apart from adjustment, and because of being fixedly arranged on this preceding movable block 70 by preceding mobile tooth 71, mobile tooth 71 translation reciprocating feed strokes also change the length of its stroke distances before this with this adjustment unit 40.

Please consult shown in Figure 6 simultaneously, be embodiments of the invention figure, as shown in the figure: the gear differential feed mechanism of moving forward and backward 2 of above-mentioned horizontal cylinder type sewing machine 1 is installed in the feeding cloth place of a horizontal cylinder type sewing machine 1, this adjustment unit 40,40 ' pulling piece 43,43 ' be located at this horizontal cylinder type sewing machine 1 shell for the user when handling this horizontal cylinder type sewing machine 1, adjust the translation reciprocating feed stroke distances of the mobile tooth 81 of mobile tooth 71 or back before this according to demand, thereby produce the thickness pin suture effect or the crape folding effect of different densities can make thread the time.

Please comprehensively consult shown in each figure, the above be it should be noted that, the present invention mainly is that axis of rocking 10 produces eccentric rotary before driving respectively by the rotation of main shaft, and eccentric manner drives coupled arm 14, allow back axis of rocking 20 produce and swing back and forth, and make forward and backward mobile tooth 71,81 reach the action that continues upper and lower displacement; The also rotation by main shaft simultaneously drives two different power transmission shafts 51,51 ' respectively it is swung back and forth and drive forward and backward swing arm 31,31 ' with eccentric manner respectively, to produce the lasting left and right displacement action of forward and backward mobile tooth 71,81 respectively.Of the present invention focusing on, cause above-mentioned before, the mobile tooth 71 in back, 81 can about, about displacement action, no matter be that the eccentric rotary of axis of rocking 10 drives before utilizing, or back the swinging back and forth of axis of rocking 20, or this two power transmission shaft 51,51 ' swing back and forth drive, all be after rotating by main shaft, mode with indivedual transmissions or interlock drives its action again, so the present invention can be respectively at this two power transmission shaft 51, on 51 ' the path of motion structure, adjustment unit 40 is set separately, 40 ' control individually its interlock before, the mobile tooth 71 in back, 81 move left and right stroke, can adjust the purpose of sewing thickness pin and differential ratio respectively with operator's the meaning and reach.

The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims

1. gear differential feed mechanism of moving forward before and after the horizontal cylinder type sewing machine, the feed speed in order to the forward and backward mobile tooth of adjusting the feeding cloth is characterized in that gear differential feed mechanism of moving forward comprises before and after the described horizontal cylinder type sewing machine:

One is connected in the main shaft of described Sewing machines power source;

Two axis of rockings, described two axis of rockings be with the axis parallel of main shaft but non-and described axle center coaxially form be articulated on the described main shaft, and be subjected to described main shaft drives to form one and swing up and down stroke, one of described two axis of rockings for correspondence described before mobile tooth be preceding axis of rocking, another is the back axis of rocking for the mobile tooth in the described back of correspondence;

One swing unit is articulated in described front or rear axis of rocking, includes the front swing arm and the rear-swing arms of the described forward and backward mobile tooth feed distance of two corresponding controls;

Two adjustment units include two balancing weights and two that are articulated in described forward and backward swing arm and are fixedly arranged on pulling piece on the described balancing weight, respectively in order to adjust described before the translation reciprocating feed stroke of the mobile tooth of mobile tooth or back.

2. gear differential feed mechanism of moving forward before and after the horizontal cylinder type sewing machine according to claim 1, it is characterized in that, the other end of described front swing arm and rear-swing arm respectively is pivoted with an end of first, second connecting rod, wherein the other end of second connecting rod is connected with a transmission arm group, described transmission arm group articulates an end of a power transmission shaft, and the other end of described power transmission shaft is by a displacement arm group and corresponding forward and backward mobile tooth formation pivot joint continuous action relation.

3. gear differential feed mechanism of moving forward before and after the horizontal cylinder type sewing machine according to claim 2, it is characterized in that, the balancing weight of described adjustment unit is located at the other end of the first connecting rod that described front swing arm articulates and mobile tooth adjustment unit before being, and the other end of the first connecting rod that articulates of described rear-swing arm and be the mobile tooth adjustment unit in back.

4. gear differential feed mechanism of moving forward before and after the horizontal cylinder type sewing machine according to claim 2, it is characterized in that, described two adjustment units include a pivot respectively, one end of two described pivots is fixedly arranged on the balancing weight of described forward and backward swing arm respectively, the other end of two described pivots forms the relation of pivot joint with the first connecting rod of described forward and backward swing arm respectively again, and the other end in described balancing weight is installed with a pivot button, and is installed with a pulling piece on the described pivot button, in order to the position of the described balancing weight of conversion.

5. gear differential feed mechanism of moving forward before and after the horizontal cylinder type sewing machine according to claim 4, it is characterized in that, described two adjustment units have a scale spare respectively, are located at an end of described pulling piece, in order to represent described corresponding front or rear mobile tooth translation reciprocating feed stroke distances.

6. gear differential feed mechanism of moving forward before and after the horizontal cylinder type sewing machine according to claim 1, it is characterized in that, described pulling piece is arranged at described horizontal cylinder type sewing machine outside, in order to can distinguish the translation reciprocating feed stroke distances of adjusting the mobile tooth of preceding mobile tooth or back in real time.