CN204625971U - Sewing machine dragging hoisting mechanism and sewing machine dragging device thereof - Google Patents

Sewing machine dragging hoisting mechanism and sewing machine dragging device thereof Download PDF

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Publication number
CN204625971U
CN204625971U CN201520250335.9U CN201520250335U CN204625971U CN 204625971 U CN204625971 U CN 204625971U CN 201520250335 U CN201520250335 U CN 201520250335U CN 204625971 U CN204625971 U CN 204625971U
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dragging
sewing machine
cloth
installing rack
hoisting mechanism
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CN201520250335.9U
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李华映
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Abstract

The utility model discloses sewing machine dragging hoisting mechanism and sewing machine dragging device thereof, this sewing machine dragging hoisting mechanism comprises the lift structure for cloth-dragging wheel lifting; Lift structure comprises power set, is arranged on the cam on power plant output shaft, and one end is fixed on the connecting rod on installing rack and is set on connecting rod, for providing the adjusting device of downward pressure to the cloth-dragging wheel on installing rack; The other end of connecting rod has the connector driving cloth-dragging wheel to move upward with cam engagement.This sewing machine dragging device, it comprises motor, sewing machine dragging hoisting mechanism, be arranged on the cloth-dragging wheel on installing rack, the linking arm be movably connected with installing rack, be arranged on installing rack, in linking arm for driving cloth-dragging wheel to move to drive the cloth belt transmission device of movement and the encoder being located at machine spindle, be connected with microprocessor backward; Power set are fixing on the connecting arm; Cam and connector are positioned on linking arm and arrange groove.

Description

Sewing machine dragging hoisting mechanism and sewing machine dragging device thereof
Technical field
The utility model relates to Sewing machines machinery, is specifically related to a kind of sewing machine dragging hoisting mechanism and sewing machine dragging device thereof.
Background technology
Sewing machines in sewing process due to the cause specific of fabric and sewing thread and sewing machine structure particularity, Sewing machines is carrying out in order to ensure the planarization of material of sewing in sewing process to cloth, adopt the planarization that can drag the material and the rear dragging device that tugboat can be driven to move upward ensures to sew to cloth backward on the market.
But, current market adopts electromagnet and air cylinder device to promote cloth-dragging wheel mostly, electromagnet has heaviness, heating is large, and volume is excessive, and pneumatic means installs trouble for factory, pipeline is many, in use procedure, noise is large, and pair roller downward pressure regulates inconvenient, mop wheel load many defects such as below after shutdown.
Utility model content
For above-mentioned deficiency of the prior art, the sewing machine dragging hoisting mechanism that the utility model provides and sewing machine dragging device thereof realize the lifting of cloth-dragging wheel by the lift structure that electric power drives.
In order to reach foregoing invention object, the technical solution adopted in the utility model is:
On the one hand, provide a kind of sewing machine dragging hoisting mechanism, it comprises the lift structure for driving the cloth-dragging wheel lifting that the installing rack of sewing machine dragging device has; Lift structure comprises power set, is arranged on the cam on power plant output shaft, and one end is fixed on the connecting rod on installing rack and is set on connecting rod, for providing the adjusting device of downward pressure to the cloth-dragging wheel on installing rack; The other end of connecting rod has the connector driving cloth-dragging wheel to move upward with cam engagement.
On the other hand, a kind of sewing machine dragging device is provided, it comprises motor, sewing machine dragging hoisting mechanism, be arranged on the cloth-dragging wheel on installing rack, the linking arm be movably connected with installing rack, be arranged on installing rack, in linking arm for driving cloth-dragging wheel to move to drive the cloth belt transmission device of movement and the encoder being located at machine spindle, be connected with microprocessor backward; Power set are fixing on the connecting arm; Cam and connector are positioned at the groove that linking arm is arranged.
The beneficial effects of the utility model are: this lifting device is rotated by power set band moving cam, due to the uniqueness of cam structure, make to drive with the counterpart of cam engagement and be arranged on cloth-dragging wheel on installing rack and move upward, after power removed by motor, adjusting device can provide downward pressure to cloth-dragging wheel, makes cloth-dragging wheel return push down cloth; Can according to different clothes, regulate cloth-dragging wheel to the pressure of cloth, production efficiency when improve sewing and quality, reduce the labour intensity of workman.
This sewing machine dragging device provides the power driving cloth to move backward to cloth-dragging wheel by large synchromesh gear, transmission belt, belt auxiliary wheel and little synchromesh gear, the hoisting mechanism that can also be driven by electric power after arranging sewing machine dragging hoisting mechanism provides the power moved up and down to cloth-dragging wheel.
Accompanying drawing explanation
Fig. 1 is that sewing machine dragging hoisting mechanism is installed together the stereogram at a rear visual angle with the installing rack with cloth-dragging wheel.
Fig. 2 is the stereogram at another visual angle after sewing machine dragging hoisting mechanism is installed together with the installing rack with cloth-dragging wheel.
Fig. 3 is that sewing machine dragging hoisting mechanism is arranged on the stereogram removing motor after on sewing machine dragging device.
Fig. 4 is the stereogram of sewing machine dragging device.
Fig. 5 is the structural representation after sewing machine dragging device removes partial shell.
Wherein, 1, cloth-dragging wheel; 2, axle sleeve; 3, spring; 4, nut; 5, adapter sleeve; 6, fixed block; 7, fixed head; 8, counterpart; 9, motor; 10, reduction box; 11, bearing; 12, cam; 13, sensor; 14, oil groove; 15, belt transmission device; 16, large synchromesh gear; 17, transmission belt; 18, belt auxiliary wheel; 19, little synchromesh gear.
Detailed description of the invention
Below detailed description of the invention of the present utility model is described; so that those skilled in the art understand the utility model; but should be clear; the utility model is not limited to the scope of detailed description of the invention; to those skilled in the art; as long as various change to limit and in the spirit and scope of the present utility model determined, these changes are apparent, and all innovation and creation utilizing the utility model to conceive are all at the row of protection in appended claim.
The stereogram that sewing machine dragging hoisting mechanism and the installing rack with cloth-dragging wheel 1 are installed together rear different visual angles is shown with reference to figure 1 and Fig. 2, Fig. 1 and Fig. 2.
As depicted in figs. 1 and 2, this sewing machine dragging hoisting mechanism comprises the lift structure for driving the cloth-dragging wheel 1 that the installing rack of sewing machine dragging device has to be elevated; Lift structure comprises power set, is arranged on the cam 12 on power plant output shaft, and one end is fixed on the connecting rod on installing rack and is set on connecting rod, for providing the adjusting device of downward pressure to the cloth-dragging wheel 1 on installing rack; The other end of connecting rod has and coordinates with cam 12 connector driving cloth-dragging wheel 1 to move upward.
In an embodiment of the present utility model, adjusting device comprises the adapter sleeve 5 be movably set on connecting rod and the spring 3 be installed on adapter sleeve 5 and connecting rod; The contiguous connector side of adapter sleeve 5 has a thread segment, thread segment is provided with the nut 4 of regulating spring 3 stroke.
When sewing machine dragging hoisting mechanism is arranged on sewing machine dragging device, the upper end of adapter sleeve 5 is fixedly mounted on sewing machine dragging device.After arranging like this, cam 12 is when drivening rod moves upward, and sewing machine dragging device is static relatively for adapter sleeve 5, and connecting rod just can compress spring 3.
After the power of power set is removed, due to spring 3 recovers deformation can to the downward power of one, connecting rod, thus make connecting rod drive the cloth-dragging wheel 1 on installing rack to move downward to push down cloth.By the position of adjusting nut 4 at thread segment, can regulate the stroke of spring 3, thus realize the adjustment of adjusting device to the downward pressure of cloth-dragging wheel 1.
When producing, in order to ensure the installation of the attractive in appearance of sewing machine dragging hoisting mechanism and adapter sleeve 5, one piece of fixed head 7 can be set in the upper end of adapter sleeve 5, by fixed head 7, adapter sleeve 5 be fixedly mounted on sewing machine dragging device.
In order to as required, realize the lifting fully automatically regulating cloth-dragging wheel 1, as shown in Figure 3 and Figure 5, this sewing machine dragging hoisting mechanism also comprises the microprocessor be connected with power set and the sensor 13 being connected, moving to for gathering connector peak with microprocessor.The connector motion conditions that microprocessor can gather according to the working condition of machine spindle and sensor 13 controls motor 9.
In an embodiment of the present utility model, refer again to Fig. 1, connector can comprise the fixed block 6 that is fixed on interlinking lever end and fixed block 6 side has the counterpart 8 coordinating with cam 12 and drive cloth-dragging wheel 1 to move up and down; The fixed head 7 of fixed operating sleeve 5 offers one for the hole slot of sensor installation 13, sensor 13 is arranged on the information moving to peak in hole slot with collection fixed block 6.
When power set are longer for the output shaft length of installing cam 12, if longitudinal torsion of output shaft is excessive, output shaft will easily fracture, in order to avoid there is the life-span of this phenomena impair sewing machine dragging hoisting mechanism, during design, on the output shaft of power set, be preferably arranged with one be fixed together with sewing machine dragging device, for providing the bearing 11 of a support force to the output shaft of power set.
As shown in Figure 1 to Figure 3, power set can comprise motor 9(when designing, and preferred motor 9 is single flow motor) and the reduction box 10 that is connected with motor 9.Connecting rod is provided with an axle sleeve 2 away from the end of cam 12, and connecting rod is fixedly mounted on installing rack by axle sleeve 2.
The operation principle of sewing machine dragging hoisting mechanism: start power set, power set are rotated by its output shaft band moving cam 12, due to the uniqueness of cam 12 structure, make the large end band of cam 12 move the counterpart 8 coordinated with cam 12 and move upward, cloth-dragging wheel 1 is separated with cloth; After power removed by motor, adjusting device provides downward pressure can to cloth-dragging wheel 1, makes cloth-dragging wheel 1 return push down cloth; Thus production efficiency when improve cloth sewing, reduce the labour intensity of workman.
As shown in Figure 4, this sewing machine dragging device comprises motor (during design, preferred motor is stepper motor), the above-mentioned sewing machine dragging hoisting mechanism mentioned, be arranged on the cloth-dragging wheel 1 on installing rack, the linking arm be movably connected with installing rack, be arranged on installing rack, in linking arm for driving cloth-dragging wheel 1 to move to drive the cloth belt transmission device 15 of movement and the encoder being located at machine spindle, being connected with microprocessor (a sewing machine dragging hoisting mechanism microprocessor shared with sewing machine dragging device) backward; The power set of sewing machine dragging hoisting mechanism are fixing on the connecting arm, and cam 12 and connector are positioned on linking arm and arrange groove.
When hoisting mechanism is arranged on sewing machine dragging device, wherein for gathering sensor 13 that connector moves to peak first through after linking arm, then be fixed in hole slot that fixed head 7 is offered.
In order to ensure cam 12 and counterpart 8 with the use of time do not produce noise, can stable transmission be carried out simultaneously, offer one on the connecting arm for providing the oil groove 14 of lubricating oil to cam 12 and connector.When lubricating cam 12, can install one piece of felt contacted with cam 12 in oil groove 14, like this when cam 12 moves, lubricating oil can be spread upon whole cam 12 surface by felt equably.
As shown in Figure 5, for driving cloth-dragging wheel 1 to move to drive the belt transmission device 15 of cloth movement backward can comprise the little synchromesh gear 19 be arranged in installing rack, large synchromesh gear 16 on the connecting arm and belt auxiliary wheel 18 are set; Large synchromesh gear 16 is arranged on the output shaft of motor, and large synchromesh gear 16 is connected by transmission belt 17 with little synchromesh gear 19; The middle part of transmission belt 17 is placed on belt auxiliary wheel 18.
Below the course of work of sewing machine dragging device is described:
Before using, sewing machine dragging device is arranged on rear side of sewing-machine foot, and by the handwheel being arranged on Sewing machines for the encoder (encoder also can be a sensor) gathering machine spindle motion conditions of sewing machine dragging device.
During use, encoder ceaselessly gathers the data of main shaft, and the data of collection are transferred to microprocessor, these data and inside arrange after setting value contrasts by microprocessor, control motor, make it pass through the effect of cooperatively interacting of large synchromesh gear 16, little synchromesh gear 19, belt auxiliary wheel 18 and transmission belt 17, drive cloth-dragging wheel 1 to make corresponding mop action to reach the intermittent object controlled with sewing machine synchronous.
After sewing machine dragging device starts, after its self-inspection completes, just control dc motor band moving cam 12 to rotate, counterpart 8 is driven to move when the large end of cam 12 moves upward, counterpart 8 drives the connecting rod be fixed together with it to move upward (process that connecting rod rises can be compressed the spring 3 on connecting rod and adapter sleeve 5), when sensor 13 detects that counterpart 8 rises to extreme higher position, sensor 13 just by this Signal transmissions to microprocessor, microprocessor just disconnects dc motor 9, makes cloth-dragging wheel 1 be in lifting state.
If encoder detects that machine spindle rotates, dc motor 9 is with moving cam 12 to rotate, the large end of cam 12 moves from top to bottom, remove to connecting rod power upwards, will to the downward power of one, connecting rod owing to recovering deformation by the spring 3 that compresses, thus make connecting rod drive the cloth-dragging wheel 1 on installing rack to move downward to push down cloth.
When this sewing machine dragging device is installed, can directly be arranged on the cover plate of Sewing machines by one piece of plate body, can not damage Sewing machines body, adapt to the installation of different model Sewing machines on the market.
Adjusting device can provide an independent downward pressure to connecting rod, and this pressure can be regulated by the fit structure of nut 4, spring 3, and the pressure of separation regulates and can better make cloth-dragging wheel 1 adapt to different sewing fabrics.
Sewing machine dragging hoisting mechanism is arranged on sewing machine dragging device after output can be become separately again, and the mechanism of separation is convenient for production, and operation is more convenient.
During design, the power set of sewing machine dragging hoisting mechanism and motor are installed in the same side of linking arm, after on the cover plate that sewing machine dragging device is arranged on Sewing machines, do not affect the overturning mode of Sewing machines, do not affect the maintenance of Sewing machines.

Claims (9)

1. sewing machine dragging hoisting mechanism, comprises the lift structure for driving the cloth-dragging wheel lifting that the installing rack of sewing machine dragging device has; It is characterized in that: described lift structure comprises power set, be arranged on the cam on described power plant output shaft, one end is fixed on the connecting rod on installing rack and is set on described connecting rod, for providing the adjusting device of downward pressure to the cloth-dragging wheel on installing rack; The other end of described connecting rod has the connector driving described cloth-dragging wheel to move upward with described cam engagement.
2. sewing machine dragging hoisting mechanism according to claim 1, is characterized in that: also comprise the microprocessor be connected with described power set and the sensor being connected, moving to for gathering described connector peak with described microprocessor.
3. sewing machine dragging hoisting mechanism according to claim 1 and 2, is characterized in that: described adjusting device comprises the adapter sleeve be movably set on described connecting rod and the spring be installed on adapter sleeve and connecting rod; The contiguous described connector side of described adapter sleeve has a thread segment, described thread segment is provided with the nut of the described telescopic spring amount of an adjustment.
4. sewing machine dragging hoisting mechanism according to claim 3, is characterized in that: described connector comprises the fixed block that is fixed on described interlinking lever end and described fixed block side has the counterpart driving described cloth-dragging wheel to move up and down with described cam engagement; Described sensor moves to the information of peak for gathering described fixed block.
5. the sewing machine dragging hoisting mechanism according to claim 1,2 or 4, is characterized in that: the output shaft of described power set is arranged with one and is fixed together with sewing machine dragging device, for providing the bearing of a support force to the output shaft of power set.
6. sewing machine dragging hoisting mechanism according to claim 5, is characterized in that: the gearbox that described power set comprise motor and are connected with described motor.
7. a sewing machine dragging device, comprise motor, the cloth-dragging wheel be arranged on installing rack, the linking arm be movably connected with described installing rack, is arranged in described installing rack and described linking arm for driving cloth-dragging wheel to move to drive the cloth belt transmission device of movement and the encoder being located at machine spindle, be connected with microprocessor backward; It is characterized in that: also comprise the arbitrary described sewing machine dragging hoisting mechanism of claim 1-6, described power set are fixed on described linking arm; Described cam and described connector are positioned at the groove that linking arm is arranged.
8. sewing machine dragging device according to claim 7, is characterized in that: described linking arm offers one for providing the oil groove of lubricating oil to described cam and described connector.
9. the sewing machine dragging device according to claim 7 or 8, is characterized in that: described belt transmission device comprises the little synchromesh gear be arranged in described installing rack, be arranged on large synchromesh gear on described linking arm and belt auxiliary wheel; Described large synchromesh gear is arranged on the output shaft of motor, and described large synchromesh gear is connected by transmission belt with little synchromesh gear; The middle part of described transmission belt is placed on described belt auxiliary wheel.
CN201520250335.9U 2015-04-23 2015-04-23 Sewing machine dragging hoisting mechanism and sewing machine dragging device thereof Active CN204625971U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520250335.9U CN204625971U (en) 2015-04-23 2015-04-23 Sewing machine dragging hoisting mechanism and sewing machine dragging device thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520250335.9U CN204625971U (en) 2015-04-23 2015-04-23 Sewing machine dragging hoisting mechanism and sewing machine dragging device thereof

Publications (1)

Publication Number Publication Date
CN204625971U true CN204625971U (en) 2015-09-09

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106149215A (en) * 2016-08-31 2016-11-23 苏州澳拓美盛自动化设备有限公司 A kind of rotating mechanism of band mop device
CN109881375A (en) * 2019-04-04 2019-06-14 宁波卡维自动化科技有限公司 Fine-tuning sewing machine cloth-dragging wheel apparatus
CN110273233A (en) * 2019-07-24 2019-09-24 苏州慧衣美机械科技有限公司 A kind of novel drawing waist machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106149215A (en) * 2016-08-31 2016-11-23 苏州澳拓美盛自动化设备有限公司 A kind of rotating mechanism of band mop device
CN109881375A (en) * 2019-04-04 2019-06-14 宁波卡维自动化科技有限公司 Fine-tuning sewing machine cloth-dragging wheel apparatus
CN110273233A (en) * 2019-07-24 2019-09-24 苏州慧衣美机械科技有限公司 A kind of novel drawing waist machine

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