CN2761648Y

CN2761648Y - Improved high speed single needle single thread chain type sewing machine

Info

Publication number: CN2761648Y
Application number: CN 200520000225
Authority: CN
Inventors: 曾建家
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-01-05
Filing date: 2005-01-05
Publication date: 2006-03-01
Anticipated expiration: 2015-01-05

Abstract

The utility model relates to a sewing machine, particularly to an improved high speed single needle single thread chain type sewing machine, which is composed of a bedplate, a housing, a crank, a thread swinging rod, a pressure foot, a feeding tooth, a pin plate, a shuttle hook, a shuttle hook fastener, a lower transverse axis, a belt pulley, etc. The utility model is characterized in that the housing is provided with a main shaft, a turning speed change mechanism and a lubricating device, wherein the main shaft is respectively connected to the lower transverse axis and the lubricating device through the turning speed change mechanism in the transmission mode. The rotation speed of a single needle single thread chain type sewing machine manufactured according to the utility model can reach 4000 rpm (revolutions per minute) because the reciprocating movement of the original upper shaft is changed into the rotary motion of the main shaft, and thus, the productivity is obviously enhanced. The utility model also provides a set of simple and effective lubrication oil supplying unit for operation workpieces, solves the structural defect of insufficient lubrication of the operation workpieces when the medium speed is changed into the high speed, has the characteristics of reasonable structural design and simple and direct property and is an effective and profitable improvement.

Description

Improved high speed single needle single line chain type Sewing machines

Technical field

The utility model relates to single needle single line chain type Sewing machines, particularly a kind of improved high speed single needle single line chain type Sewing machines.

Background technology

The structure of existing single needle single-thread sewing machine mainly by platen, casing, go up axle, cycloid bar, presser feet, feeding tooth, needle plate, edges and corners hook, edges and corners hook fastener, down transverse axis and belt pulley and down the crank-type driving member between transverse axis and the last axle etc. form, its running power reaches down transverse axis by motor through belt, belt pulley---through crank drive pumping upward spool---to be driven the cycloid bar again and moves up and down synchronously and cooperate the running of feeding tooth and edges and corners device to finish sewing to fabric jointly.Limit because of this Sewing machines is subjected to its structure---promptly going up axle is a stock movement parts up and down reciprocatingly, from structural mechanics, the reciprocating motion of this stock is easily shaken when quickening, and except that influencing its transmission speed and precision, also is difficult to be embodied as running up of boosting productivity.So the running speed of such Sewing machines generally can not be higher than 1500～1800 rev/mins.The running speed of Sewing machines is an important indicator of boosting productivity, increasing the rotating speed of Sewing machines for boosting productivity is a valid approach, but, must transform and provide necessary lubricating condition for works and parts the existing sewing machine structure, just might realize, otherwise might scaling loss running parts and machine.

The utility model content

The purpose of this utility model is to disclose a kind of improved high speed single needle single line chain type Sewing machines for boosting productivity, this utility model is to adopt following technical scheme to be achieved: a kind of improved high speed single needle single line chain type Sewing machines, form by platen, casing, crank, cycloid bar, presser feet, feeding tooth, needle plate, edges and corners hook, edges and corners hook fastener, following transverse axis and belt pulley etc., it is characterized in that being provided with main shaft in the casing, turn to gear and lubricating arrangement, main shaft is through turning to gear be in transmission connection down respectively transverse axis and lubricating arrangement; Turn to gear to comprise a upright shafts and upper and lower bevel gear, wherein, the last bevel gear bridle joint that places the upright shafts top is in the bevel gear of main shaft setting, and following bevel gear bridle joint places down the bevel gear of transverse axis right-hand member, and the bottom of upright shafts connects puts lubricating arrangement; Lubricating arrangement is made up of fuel tank, oil pump, last oil pipe and following oil pipe, three-way connection and oil return pipe, and fuel tank places the platen below, and oil pump places between platen and the fuel tank, and oil pump shaft is connected to the bottom that turns to the gear upright shafts; One of three-way connection connects into oil pump oil transportation mouth, and two reduction of fractions to a common denominators do not connect an end of oil pipe and following oil pipe in addition, and the port of export of last oil pipe inserts the Oil Guide cover of main shaft, and following oil pipe is divided into the axle sleeve that two outlets insert down the transverse axis two ends respectively; Oil collection box and the oil pump oil return opening that is positioned at main shaft left end below inserted at the two ends of oil return pipe respectively; The rotating ratio of following transverse axis and main shaft is 1: 1; It is a hollow pipe that its right-hand member places the external main shaft of putting belt pulley of casing, and the main shaft two ends respectively dispose axle sleeve and its stage casing configuration Oil Guide cover, and the Oil Guide cover is a pipe with the main shaft sliding fit, and the Oil Guide casing wall is shaped on the port of export that oil pipe is inserted in the hole; Main shaft is shaped on oil guide groove at the pipe outer wall of configuration Oil Guide cover, is shaped on oil guiding hole in the oil guide groove.

Press the single needle single line chain type Sewing machines that this programme is implemented, because of original reciprocating motion of going up axle is improved to rotatablely moving of main shaft, its rotating speed can improve productivity ratio significantly up to 4000 rev/mins.Be the reliability and the security of the parts that guarantee to run up, this programme has solved the fault of construction of the existing lack of lubrication of conveyer spare when putting forward to high speed by middling speed for the running parts provide a cover simple effective lubricating fueller.The utlity model has reasonable in design, simple and direct characteristics, is a kind of effective and useful improvement.

Description of drawings

Fig. 1 is the broken section structural representation of a kind of embodiment of the utility model;

Fig. 2 is the decomposition texture schematic diagram of Oil Guide cover and main shaft.

The specific embodiment

Be further described in detail in conjunction with the accompanying drawings.Fig. 1 shows the front broken section structural representation of a kind of embodiment, be seated on the platen 1 to the casing 7 of the similar profile of general Sewing machines, the Sewing machines left end is provided with cycloid bar 11, crank 12, presser feet 13, feeding tooth 14, needle plate 15, edges and corners hook 16 and edges and corners hook fastener 17, be provided with main shaft 8 in the casing, by upright shafts 6 and last bevel gear 61` and down bevel gear 60 constitute turn to gear, by fuel tank 2, oil pump 3, last oil pipe 9, following oil pipe 19, the lubricating arrangement that three-way connection 5 and oil return pipe 4 constitute, wherein, place the last bevel gear 61 on upright shafts 6 tops to mesh with the bevel gear 80 that main shaft 8 is provided with, following bevel gear 60 and bevel gear 180 engagements that place down transverse axis 18 right-hand member heads, the bottom of upright shafts 6 and oil pump 3 are coupling; Box-like fuel tank 2 places the below of platen 1, and oil pump 3 places between platen 1 and the fuel tank 2; One of three-way connection 5 connects the oil transportation mouth into oil pump 3, two reduction of fractions to a common denominators do not connect an end of oil pipe 9 and following oil pipe 19 in addition, the port of export of last oil pipe 9 inserts the Oil Guide cover 10 of main shaft 8, following oil pipe 19 is divided into the axle sleeve 181 that two outlets insert down transverse axis 19 two ends respectively, and oil collection box 17 and oil pump 3 oil return openings that are positioned at main shaft 8 left ends below are inserted at the two ends of oil return pipe 4 respectively.For improving the running speed of Sewing machines, change the former reciprocating axle of going up into rotatablely move main shaft, and the former belt pulley of transverse axis that places down changed a social system in main shaft, promptly put belt pulley 70 and hang with belt 71 in that the right-hand member of main shaft 8 is external, so improve,---belt 71---belt pulley 70 is to main shaft 8---one road drives crank 12 and drives enforcement sewing runnings such as cycloid bar 11, stitch 13 via motor; Another road is done 90 ° through gear 80 engaged transmission gears 61 and is turned to, and remakes 90 ° by axle 6 through gear 60 engaged transmission gears 180 and turn to---and drive transverse axis 18 rotations down and drive edges and corners hook 16, feeding tooth 14 etc. and cooperate the sewing of finishing fabric knitting with related components.For realizing down the high speed rotary motion of transverse axis and main shaft, following transverse axis 18 was made as 1: 1 with the rotating ratio of main shaft 8, in the present embodiment, gear 80 is made as 28 and 22 respectively with the number of teeth of its meshed gears 61, and gear 60 reaches and the number of teeth of its meshed gears 180 is made as 22 and 28 respectively.Press the lubricated routine of running parts, the axle of all runnings and bearing thereof are essential to guarantee enough lubricating, otherwise with the scaling loss parts.So, the utility model provides a cover the foregoing auto-supply device that lubricates of guaranteeing, the lubricating oil of being got by oil pump inserts the Oil Guide cover 10 that is disposed at main shaft 8 from the outlet of last oil pipe 9, Oil Guide cover 10 is the pipes with main shaft 8 sliding fits, and the Oil Guide casing wall is shaped on the port of export that oil pipe is inserted in hole 101; Main shaft 8 is shaped on oil guide groove 82 at the pipe outer wall of configuration Oil Guide cover 10, is shaped on oil guiding hole 83 in the oil guide groove 82; Main shaft 8 is hollow pipes, when having the hole 101 of cover 10, the lubricating oil self-conductance flows into oil guide groove 82, and the process lubricating oil in main axis rotation flows in the tube chamber of main shaft 8 through oil guiding hole 83, and along with the high speed rotation of main shaft, intraluminal lubricating oil flow to two ends with lubricative axle sleeve and gear.In like manner, two outlets of following oil pipe 9 provide lubricating oil for respectively axle sleeve 181, make the following transverse axis 18 of rotation at a high speed obtain lubricated fully.Because casing is closed in the major part parts that turn round in the shell, so, can flow to other positions during lubricating oil splash on all rotary gadgets keeping lubricated, and splash or the lubricating oil that throws away can carry over casing inner wall and flow to fuel tank.Oil pump 3 is a kind of commercially available Sewing machines dedicated pumps, but its pumpback lubricating oil again in output lubricating oil oil---be oil return pipe 4 from the lubricating oil of oil collection box 17 pumpbacks drippage to oil pump.

Claims

1, a kind of improved high speed single needle single line chain type Sewing machines, form by platen, casing, crank, cycloid bar, presser feet, feeding tooth, needle plate, edges and corners hook, edges and corners hook fastener, following transverse axis and belt pulley etc., it is characterized in that being provided with main shaft in the casing, turn to gear and lubricating arrangement, main shaft is through turning to gear be in transmission connection down respectively transverse axis and lubricating arrangement.

2, by the described improved high speed single needle single line chain type Sewing machines of claim 1, it is characterized in that turning to gear to comprise a upright shafts and upper and lower bevel gear, wherein, the last bevel gear bridle joint that places the upright shafts top is in the bevel gear of main shaft setting, following bevel gear bridle joint places down the bevel gear of transverse axis right-hand member, and the bottom of upright shafts connects puts lubricating arrangement.

3, by claim 1 or 2 described improved high speed single needle single line chain type Sewing machiness, it is characterized in that lubricating arrangement by fuel tank, oil pump, go up oil pipe and following oil pipe, three-way connection and oil return pipe are formed, fuel tank places the platen below, oil pump places between platen and the fuel tank, and oil pump shaft is connected to the bottom that turns to the gear upright shafts; One of three-way connection connects into oil pump oil transportation mouth, and two reduction of fractions to a common denominators do not connect an end of oil pipe and following oil pipe in addition, and the port of export of last oil pipe inserts the Oil Guide cover of main shaft, and following oil pipe is divided into the axle sleeve that two outlets insert down the transverse axis two ends respectively; Oil collection box and the oil pump oil return opening that is positioned at main shaft left end below inserted at the two ends of oil return pipe respectively.

4, by claim 1 or 2 described improved high speed single needle single line chain type Sewing machiness, the rotating ratio of transverse axis and main shaft is 1: 1 under it is characterized in that.

5, by claim 1 or 2 described improved high speed single needle single line chain type Sewing machiness, it is characterized in that it is a hollow pipe that its right-hand member places the external main shaft of putting belt pulley of casing, the main shaft two ends respectively dispose axle sleeve and its stage casing configuration Oil Guide cover.

6, by the described improved high speed single needle single line chain type Sewing machines of claim 5, it is characterized in that the Oil Guide cover is a pipe with the main shaft sliding fit, the Oil Guide casing wall is shaped on the port of export that oil pipe is inserted in the hole.

7,, it is characterized in that main shaft is shaped on oil guide groove at the pipe outer wall of configuration Oil Guide cover, is shaped on oil guiding hole in the oil guide groove by the described improved high speed single needle single line chain type Sewing machines of claim 5.