CN2808964Y

CN2808964Y - Drive structure for industrial sewing machine

Info

Publication number: CN2808964Y
Application number: CN 200520107900
Authority: CN
Inventors: 蔡荣全
Original assignee: JIANLIAN SEWING MACHINE CO Ltd
Current assignee: JIANLIAN SEWING MACHINE CO Ltd
Priority date: 2005-06-06
Filing date: 2005-06-06
Publication date: 2006-08-23
Anticipated expiration: 2015-06-06

Abstract

The utility model discloses a drive structure for an industrial sewing machine, which comprises a machine body provided with a base part, a sewing unit, a work-feeding cam, a power cut-off control cam and at least one servo motor, wherein the servo motor is arranged on one side of the machine body. The servo motor directly drives a transmission shaft into the machine body to drive the sewing unit, and relevant mechanisms of the work-feeding cam and the power cut-off control cam can be connected and linked; the circumference of the power cut-off control cam is provided with a speed-reduction induction component, and an inductor is additionally arranged on a path where the speed-reduction induction component is pivoted on the peripheral edge of the power cut-off control cam; the inductor is electrically connected with a control unit through which the power output of the servo motor is electrically controlled. The utility model uses the servo motor to directly drive the transmission shaft to output power, and has the characteristics of low abrasion, low energy consumption and accurate rotation speed.

Description

The drives structure of industrial sewing machines

Technical field:

The utility model relates to a kind of industrial sewing machines, refers to the drives structure of industrial sewing machines especially.

Background technology:

Existing industrial sewing machines drives structure, as Fig. 1-as can be known shown in Figure 2, the structure of general Sewing machines mainly is to be provided with a pedestal part 101 in the bottom side of body 10, side in this body 10 is provided with a transmission mechanism 6, this transmission mechanism 6 is the output shafts that are incorporated into a CD-ROM drive motor 20 with an output belt pulley 61, it is two concentric big that this output belt pulley 61 has, little annular groove, can connect height respectively via clutch pack respectively, slow-speed of revolution belt (64,63) be connected in a speed pulley 62 two with one heart and the annular groove that equates of external diameter, and these speed pulley 62 centers are stretched in the body 10 with a power transmission shaft 201, oppress idle pulley 632 staggered these slow-speed of revolution belts 63 of compressing in these slow-speed of revolution belt 63 1 avris stage casings two other idle pulleys 631 and that are respectively equipped with, and at least one avris of high rotating speed belt 64 also is provided with compressing idle pulley (not shown); This power transmission shaft 201 drives the required power of sewing needle except that providing again, also can be connected a feed eccentric 30 (floral disc) of being located in the pedestal part 101 via a clutch interlinked mechanism, in these feed eccentric 30 1 sides and the less control cam 40 that cut-offs of Heart-to-Heart unification external diameter, make these feed eccentric 30 periphery rings be provided with a decorative pattern conduit 301, this decorative pattern conduit 301 can stretch into guide member 3021 default on its movable end for a guide bar 302 that is hubbed on the pedestal part 101, these control cam 40 peripheries that cut-off then are provided with a recess 401, be provided with a darker clip groove 4011 in these recess 401 1 ends, then be provided with a compress drive link group 402 in these control cam 40 sides that cut-off and oppress in compress drive link 40 peripheries with default stop part 4021 elasticity of cut-offfing of one end.

Oppress this slow-speed of revolution belt 63, high rotating speed belt 64 by the compressing idle pulley 632 of above-mentioned slow-speed of revolution belt 63 or the compressing idle pulley of high rotating speed belt 64 sides respectively at the different time, can make CD-ROM drive motor 20 drive this power transmission shaft 201 with different rotating speeds respectively; This power transmission shaft 201 then can drive this feed eccentric 30 via relevant interlinked mechanism, the control cam 40 that cut-offs rotates, utilize guide member 3021 slippage in decorative pattern conduit 301 of this guide bar 302, but relevant displacement of pressing cloth clamp device formation on the interlock pedestal part 101 with respect to sewing needle, to produce the decorative pattern of sewing, the variation of pattern, the stop part 4021 that cut-offs of this compress drive link group 402 then can be in cut-offfing control cam 40 after suitably slowing down, embed the clip groove 4011 interior clips that form of this control cam 40 that cut-offs, to stop the rotation of this control cam 40 that cut-offs.

Yet, said structure its in practical application, following disappearance is arranged:

1, no matter power transmission shaft 201 is when being in high speed or low-speed running, this high and low rotating speed belt (64,63) all is to utilize clutch to come conversion and

different speed pulley

62,61 Frotteurisms that keep different rotating speeds of output belt pulley, this kind friction not only easily causes the wearing and tearing of belt or clutch, also cause the waste of the energy, the utmost point does not meet economic benefit.

2, because high rotating speed belt 64 can form the resistance of running each other with slow-speed of revolution belt 63, and its mutual influence is extremely wayward, therefore is difficult for keeping the accuracy of output speed, and easily produces different sound, noise during running.

3, owing to this power transmission shaft 201 and the control cam 40 that cut-offs are to be subjected to a brake brake unit 23 and the drive link group 402 of cut-offfing stops at the location with the powerful edge groove that embed tumblers of stop part 4021 of cut-offfing, therefore, when stopping, car is easy to generate the huge sound in closing (very).

4, because above factor causes output speed to lack accuracy, and pass (very) the car positioning accuracy of the control cam 40 that cut-offs is not good, causes to implement the step that makes zero when restarting, and influences working (machining) efficiency.

The utility model content:

Technical problem to be solved in the utility model is: at the deficiencies in the prior art, provide a kind of drives structure that directly drives the industrial sewing machines of power transmission shaft outputting power with servo motor.

In order to solve the problems of the technologies described above, the technical scheme that the utility model adopted is: a kind of drives structure of industrial sewing machines, the body, sewing unit, feed eccentric and the control cam that cut-offs that comprise the tool pedestal part, also comprise a servo motor at least, it is arranged at a side of described body, this servo motor directly drives a power transmission shaft in described body, drive the sewing unit and also can be connected the interlock feed eccentric and cut-off control cam associated mechanisms; The described control cam periphery that cut-offs is provided with a deceleration inductive component, then be provided with an inductor in addition on the path that the control cam periphery of cut-offfing pivots because of this deceleration inductive component, this inductor electrically connects a control module with the power output of this servo motor of electric control again.

Described feed eccentric is located in the pedestal part of described organism bottom, and it is connected in described power transmission shaft with an interlinked mechanism, and is provided with the annular decorative pattern conduit that supplies a guide bar that is hubbed at pedestal part to stretch into its movable end of suitable shape in this feed eccentric one side periphery.The described control cam that cut-offs is incorporated into the bottom side of described feed eccentric.The rear of described deceleration inductive component is provided with a location inductive component in addition.Described body is hubbed on the pedestal, and this pedestal is provided with a microswitch in the side with end that articulates the position.Described pedestal is provided with an angle adjustment seat in the side that articulates the position, and described microswitch is located on this angle adjustment seat.

Compared with prior art, with the utility model has the advantages that: it directly drives the power transmission shaft outputting power with servo motor, has the accurate characteristics of low wearing and tearing, low power consuming and rotating speed; Simultaneously, utilize inductor detecting to cut-off and control the position of deceleration inductive component on the cam, again in conjunction with a control module, use the rotation that control one drives the servo motor of final drive shaft, the control cam accurately is positioned predeterminated position so that cut-off, and quiet and can not produce noise when car stops in closing (very).

As for detailed construction of the present utility model, application principle, effect and effect, then the explanation of doing with reference to following adjoint can be understood completely:

Description of drawings:

Fig. 1 is the drives structure schematic diagram of existing Sewing machines.

Fig. 2 is the deceleration of the existing Sewing machines region of interest structural representation that cut-offs.

Fig. 3 is the utility model unitary construction combination schematic diagram.

Fig. 4 is the utility model structure decomposition map of region of interest of cut-offfing that slows down.

Fig. 5 is the utility model combination schematic diagram of region of interest of cut-offfing that slows down.

Fig. 6 be the utility model slow down cut-off region of interest look up the combination schematic diagram.

Fig. 7 is the exploded view of body of the present utility model and servo motor binding site.

Fig. 8 is the combination schematic diagram of body of the present utility model and servo motor.

Fig. 9 is the view before body of the present utility model starts.

Figure 10 is the action diagram after body of the present utility model starts.

Illustration:

1,10.... body

11,101... pedestal part

12.... sewing unit

13.... pedestal

2..... servo motor

20.... CD-ROM drive motor

21,201... power transmission shaft

22.... interlinked mechanism

3,30.... feed eccentric

31,301... decorative pattern conduit

32,302... guide bar

321,3021.. guide member

4, the 40.... control cam that cut-offs

41,401... recess

42,402... compress drive link group

43.... inductor

44.... deceleration inductive component

45.... location inductive component

4011.. clip groove

The stop part 4021.. cut-off

5..... control module

50.... microswitch

51.... angle adjustment seat

6..... transmission mechanism

61.... output belt pulley

62.... speed pulley

63.... slow-speed of revolution belt

631... idle pulley

632... compressing idle pulley

64.... high rotating speed belt

The specific embodiment:

As Fig. 3-shown in Figure 6, can clearly find out, the utility model mainly comprises: servo motor 2, the feed eccentric 3 (floral disc) and the parts such as control cam 4 and control module 5 of cut-offfing, wherein this servo motor 2 is arranged at the tail end of the body 1 of industrial sewing machines, the control of the output-controlled system of its power unit 5, can directly stretch in this body 1 in order to drive a power transmission shaft 21, to drive sewing unit 12 and can be connected the interlock associated mechanisms, feed eccentric 3 is located in the pedestal part 11 of body 1 bottom, and its central authorities also are connected in aforementioned power transmission shaft 21 stage casings with an interlinked mechanism 22; And feed eccentric 3 bottom side periphery rings are provided with the decorative pattern conduit 31 of a suitable shape, decorative pattern conduit 31 can be for a guide bar 32 that is hubbed at pedestal part 11, and stretch into slippage with the guide member on its movable end 321, the control cam 4 that cut-offs is incorporated into the bottom side of aforementioned feed eccentric 3, be respectively equipped with a recess 41 and a deceleration inductive component 44 in these control cam 4 peripheries that cut-off, this recess 41 can stretch into an end for a L shaped compress drive link group 42 that is hubbed on the pedestal part 11, use the action of control compress, and locate inductive component 45 in conjunction with one in addition in an end of this deceleration inductive component 44, and these control cam 4 peripheries of cut-offfing are because of then being provided with an inductor 43 on deceleration inductive component 44 pivotal path, 43 of this inductors are electrically coupled to control module 5 again, use the power output of control servo motor 2.

When this servo motor 2 directly drives this power transmission shaft 21, except that can driving 12 actions of sewing unit, also rotate synchronously via interlinked mechanism 22 these feed eccentrics 3 of driving, the control cam 4 that cut-offs, this feed eccentric 3 can utilize guide member 321 slippage in decorative pattern conduit 31 of guide bar 32, make relevant compress and band cloth apparatus on this pedestal part 11 produce relative slippage, so that sewing unit 12 sewings go out default style; And when brake, utilize these inductor 43 induction deceleration inductive components 44 can see through control module 5 and order about the deceleration that servo motor 2 produces in advance, again when inductor 43 corresponds to location inductive component 45, moment stops the transmission of servo motor 2 fully again, make this feed eccentric 3, cut-off control cam 4 accurately stop at the location.

Referring to Fig. 7-Fig. 8, and Fig. 9-Figure 10, this body 1 is hubbed on the pedestal 13 as can be known, and this pedestal 13 is provided with an angle adjustment seat 51 in the side that articulates the position, on this angle adjustment seat 51 in conjunction with the microswitch 50 that can control this control module 5 and servo motor 2 power supplys, when this body 1 during in general combination operating state, its avris and microswitch 50 keep a suitable distance, the power supply of the whole facility of microswitch 50 conductings this moment, make the control that this servo motor 2 can controlled unit 5 and drive power transmission shaft 21 and rotate, as shown in Figure 9; Yet when making holding in addition of body 1 upwards start because of maintenance, the tail end avris of body 1 just can lift the process of opening at the other end, push this microswitch 50 gradually, directly cut off the power supply of this control module 5 and servo motor 2, avoid causing the danger of improper running because of false touch.

The utility model can be by changing the fixed position of microswitch 50 on angle adjustment seat 51, and adjust the contact position and the angle of this microswitch 50 and body 1.

From the above mentioned as can be known, the drives structure of the utility model Sewing machines has output speed really and stops the location accurately, and because of need not the time to carry out the operation that parts fastener or resistance are hit fully in brake, so more can reach the effect of operation peace and quiet and low frictional dissipation, really have usability, novelty and progressive on the industry.

Claims

1, a kind of drives structure of industrial sewing machines, the body, sewing unit, feed eccentric and the control cam that cut-offs that comprise the tool pedestal part, it is characterized in that: also comprise a servo motor at least, it is arranged at a side of described body, this servo motor directly drives a power transmission shaft in described body, drive the sewing unit and also can be connected the interlock feed eccentric and cut-off control cam associated mechanisms; The described control cam periphery that cut-offs is provided with a deceleration inductive component, then be provided with an inductor in addition on the path that the control cam periphery of cut-offfing pivots because of this deceleration inductive component, this inductor electrically connects a control module with the power output of this servo motor of electric control again.

2, the drives structure of industrial sewing machines according to claim 1, it is characterized in that: described feed eccentric is located in the pedestal part of described organism bottom, it is connected in described power transmission shaft with an interlinked mechanism, and is provided with the annular decorative pattern conduit that supplies a guide bar that is hubbed at pedestal part to stretch into its movable end of suitable shape in this feed eccentric one side periphery.

3, the drives structure of industrial sewing machines according to claim 1 and 2 is characterized in that: the described control cam that cut-offs is incorporated into the bottom side of described feed eccentric.

4, the drives structure of industrial sewing machines according to claim 1 and 2 is characterized in that: the rear of described deceleration inductive component is provided with a location inductive component in addition.

5, the drives structure of industrial sewing machines according to claim 3 is characterized in that: the rear of described deceleration inductive component is provided with a location inductive component in addition.

6, the drives structure of industrial sewing machines according to claim 1 and 2 is characterized in that: described body is hubbed on the pedestal, and this pedestal is provided with a microswitch in the side with end that articulates the position.

7, the drives structure of industrial sewing machines according to claim 4 is characterized in that: described body is hubbed on the pedestal, and this pedestal is provided with a microswitch in the side with end that articulates the position.

8, the drives structure of industrial sewing machines according to claim 5 is characterized in that: described body is hubbed on the pedestal, and this pedestal is provided with a microswitch in having the side that articulates one of position end.

9, the drives structure of industrial sewing machines according to claim 6 is characterized in that: described pedestal is provided with an angle adjustment seat in the side that articulates the position, and described microswitch is located on this angle adjustment seat.

10, the drives structure of industrial sewing machines according to claim 7 is characterized in that: described pedestal is provided with an angle adjustment seat in the side that articulates the position, and described microswitch is located on this angle adjustment seat.

11, the drives structure of industrial sewing machines according to claim 8 is characterized in that: described pedestal is provided with an angle adjustment seat in the side that articulates the position, and described microswitch is located on this angle adjustment seat.