CN102505364A - Normal feed and reverse feed driving mechanism for roller presser foot of roller postbed sewing machine - Google Patents
Normal feed and reverse feed driving mechanism for roller presser foot of roller postbed sewing machine Download PDFInfo
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- CN102505364A CN102505364A CN2011103394463A CN201110339446A CN102505364A CN 102505364 A CN102505364 A CN 102505364A CN 2011103394463 A CN2011103394463 A CN 2011103394463A CN 201110339446 A CN201110339446 A CN 201110339446A CN 102505364 A CN102505364 A CN 102505364A
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Abstract
The invention provides a normal feed and reverse feed driving mechanism for a roller presser foot of a roller postbed sewing machine, which belongs to the technical field machinery and solves the problems that an air cylinder is easy to damage and the like as normal feed and reverse feed of a reverse sewing device of an existing industrial sewing machine are completely driven by the air cylinder. The normal feed and reverse feed driving mechanism is connected with a roller component and comprises a drive part, a roller connecting lever, a connector and a guide part, wherein the connector and the guide bar are used for being connected with the roller component, the middle of the roller connecting lever is hinged onto a machine body, two ends of the roller connecting lever are hinged to the drive part and the connector respectively, the guide part is fixedly connected onto the machine body and sleeved on the connector, and a spring leading the connector to tend to move down is arranged at the drive part. The normal feed and reverse feed driving mechanism has the advantages of simple structure, flexibility in switching of normal feed and reverse feed, and the like.
Description
Technical field
The invention belongs to field of mechanical technique, relate to a kind of roller car, particularly roller car roller press is just backstitching driving mechanism.
Background technology
Roller car Sewing machines be adopt electric integrated realization automatic shearing, automatically presser foot lifter, automation mechanized operation such as backstitch automatically.Adopt the synchronous feeding of upper and lower roller and eedle, the work feed security of system is reliable, makes the sewing palpus smooth, and stitching is attractive in appearance.Be applicable to the leather sewing of all thickness.According to the demand in market, crosspointer series has various needle gage.
At present, the shank pendulous device normally adopts the air cylinder driven pendulous device in the roller car Sewing machines.Because it is client of certain scale that differing of using that the roller car produces establishes a capital, and adopts the roller car of air cylinder driven shank pendulous device certainly will require the client that feeder is arranged, this brings certain burden for virtually the client economically.
And Sewing machines relies on the cylinder action fully when between normally sewing and backstitching, switching, and the cylinder degree of fatigue is high, uses a period of time exhaust hood to damage, influence sewing stability in use.
Its publication number of Chinese patent CN1313419A provides a kind of " Backsewing unit of industrial sewing machine "; Start the switching device shifter ejection when it need backstitch and be preset in the power transmitting elements in the Sewing machines column; The action of connecting rod lower link and upper connecting rod, and control clutch device, final drive go up or down feed spool to the shaft-driven pattern of this transmission; And in the drive or down drawing-inroller is just producing, is reversing, and just the sewing feeding or backstitch feeding of workpiece object is provided.
But, just the sewing feeding or to backstitch feeding also be to rely on the cylinder action to realize switching of above-mentioned patent.Still there are the problems referred to above.
Summary of the invention
The objective of the invention is the problems referred to above of existing to prior art, a kind of drive unit that makes the roller coupling assembling that roller car stability in use is high is provided.
The object of the invention can be realized through following technical proposal: a kind of roller car roller press is just backstitching driving mechanism; Be arranged on the body of Sewing machines and and link to each other with roll wheel assembly; It is characterized in that this device comprises that actuator, roller connect lever and the connector and the guide that are used for linking to each other with roll wheel assembly, above-mentioned rollers connects the lever middle part and is hinged on the body; The two ends that roller connects lever are hinged with actuator and connector respectively; Described guide is connected on the body, and guide is enclosed within on the connector, and described actuator place is provided with the spring that makes connector have the trend of moving down.
When Sewing machines is just stitching state, connect lever to the connector place bottom, make connector drive roll wheel assembly and move down, make the roller car stably be in and just stitching state at the elastic force effect bottom roller of spring.
After actuator overcomes spring force, make roller connect lever swing to opposite direction, promptly Sewing machines is in the state of backstitching.
Roller car roller press above-mentioned is just backstitching in the driving mechanism, and described actuator is an electromagnet, and the iron core of electromagnet connects lever one end and is hinged with roller.
Electromagnetism ferromagnetic having or not can be used the switching Current Control, and the size of magnetic can be controlled with the power of electric current or the number of turn of coil, so its practicality is than higher.
Roller car roller press above-mentioned is just backstitching in the driving mechanism, and described spring housing acts on respectively on electromagnet and the iron core on the iron core of electromagnet and the two ends of spring.
Roller car roller press above-mentioned is just backstitching in the driving mechanism, is fixed with jump ring on the described electromagnet core, and an end roof pressure of above-mentioned spring is on jump ring.
Jump ring can easily be connected on the electromagnet core, through jump ring spring is located.
Roller car roller press above-mentioned is just backstitching in the driving mechanism, and said actuator sidepiece is fixed with and is used for the fixed head that links to each other with the Sewing machines body.
Can easily actuator be connected on the body of Sewing machines through fixed head.
Roller car roller press above-mentioned is just backstitching in the driving mechanism, and described guide is block and on guide, has the through hole that is complementary with connector.
Such structure makes connector to move up and down along the guide straight line.
Roller car roller press above-mentioned is just backstitching in the driving mechanism; Said connector comprises that the guide post and the guide post that are hinged on roller connection lever end are in the above-mentioned guide; Be connected with a upper joint-shaft on the said guide post; Being provided with that the upper joint-shaft bottom is coaxial can be with respect to the bottom spindle of upper joint-shaft axis direction translation, and bottom spindle can rotate with respect to upper joint-shaft, and said upper joint-shaft end has engagement teeth one; The bottom spindle end has the engagement teeth two that can be meshed with engagement teeth one, has the Power Component that can drive its one-directional rotation on the said upper joint-shaft.
Roller car roller press above-mentioned is just backstitching in the driving mechanism; Described Power Component comprises unilateral bearing that is connected on the upper joint-shaft and the ball link that flexibly connects on the unilateral bearing; A top axle that can rotate and a universal joint, the other end of above-mentioned ball link and universal joint flexibly connect.
Roller car roller press above-mentioned is just backstitching in the driving mechanism; The quantity of said ball link is two; The quantity of said unilateral bearing is two; Said unilateral bearing is along the axial adjacent setting of upper joint-shaft, and an end of above-mentioned two ball connecting rods all links with universal joint, and the other end of above-mentioned two ball connecting rods is connected on the corresponding unilateral bearing.
Roller car roller press above-mentioned is just backstitching in the driving mechanism, is provided with stage clip between said upper joint-shaft and the guide post, the elastic force effect under upper joint-shaft have the trend that is resisted against on the bottom spindle and makes engagement teeth one and two engagements of engagement teeth.
(when just stitching) makes engagement teeth one and engagement teeth two mesh under the effect of spring expansion force when the electromagnet no power; This moment, top axle wobbling action reached ball link by universal joint; Through unilateral bearing action is reached bottom spindle again, bottom spindle reaches action and realizes the feeding function on the presser foot component;
When electromagnet is switched on, move on (backstitching state) upper joint-shaft and break away from bottom spindle; Engagement teeth one are separated with engagement teeth two; This moment, the top axle can't be with transmission of power to roller press assembly, and this moment, roller press was in free state since through cloth with the drawing-inroller mediate contact; So also indirectly the drawing-inroller action is reached roller press, realizes backstitching the feeding function from face.
Here the flexible connection of mentioning, identical with the connected mode of universal joint.
Compared with prior art, it is simple that this roller car roller press is just backstitching driving mechanism structure, and low cost of manufacture can flexible conversion forward feeding and reverse feeding and be not easy to occur stuck phenomenon.
Description of drawings
Fig. 1 has the structural representation that this roller car roller press is just backstitching the Sewing machines of driving mechanism.
Fig. 2 is the perspective view that this roller car roller press is just backstitching driving mechanism.
Fig. 3 is the main TV structure sketch map that this roller car roller press is just backstitching driving mechanism.
Among the figure, 1, actuator; 1a, iron core; 2, fixed head; 3, spring; 4, jump ring; 5, roller connects lever; 6, guide post; 7, guide; 8, upper joint-shaft; 8a, engagement teeth one; 9, bottom spindle; 9a, engagement teeth two; 10, unilateral bearing; 11, ball link; 12, universal joint; 13, stage clip; 14, top axle.
The specific embodiment
As shown in Figure 1, roller car Sewing machines is used for the leather sewn operation of the industrial all thickness of leather product, suitcase, footwear and decoration.This roller car roller press is just backstitching on the body that driving mechanism is arranged on Sewing machines and with roll wheel assembly and is linking to each other.
As depicted in figs. 1 and 2, this device comprises that actuator 1, roller connect lever 5 and be used for connector 6 and the guide 7 that roll wheel assembly links to each other.
In the present embodiment, actuator 1 is an electromagnet, and the iron core 1a of electromagnet connects lever 5 one ends and is hinged with roller.The iron core 1a that spring 3 is enclosed within electromagnet goes up and the two ends of spring 3 act on respectively on electromagnet and the iron core 1a.
Be fixed with jump ring 4 on the electromagnet core 1a, an end roof pressure of spring 4 is on jump ring 4.
As shown in Figures 2 and 3; Connector comprises that the guide post and the guide post that are hinged on roller connection lever end are in the above-mentioned guide; Be connected with a upper joint-shaft on the said guide post; Being provided with that the upper joint-shaft bottom is coaxial can be with respect to the bottom spindle of upper joint-shaft axis direction translation, and bottom spindle can rotate with respect to upper joint-shaft, and said upper joint-shaft end has engagement teeth one; The bottom spindle end has the engagement teeth two that can be meshed with engagement teeth one, has the Power Component that can drive its one-directional rotation on the said upper joint-shaft.
Power Component comprises the unilateral bearing that is connected on the upper joint-shaft and the ball link that flexibly connects on the unilateral bearing, top axle that can rotate and a universal joint, the other end of above-mentioned ball link and universal joint flexible connection.The quantity of ball link is two; The quantity of said unilateral bearing is two; Said unilateral bearing is along the axial adjacent setting of upper joint-shaft, and an end of above-mentioned two ball connecting rods all links with universal joint, and the other end of above-mentioned two ball connecting rods is connected on the corresponding unilateral bearing.Be provided with the electromagnet stage clip between upper joint-shaft and the guide post, upper joint-shaft has the trend that is resisted against on the bottom spindle and engagement teeth one and engagement teeth two are meshed under the elastic force effect of back-moving spring.
(when just stitching) makes engagement teeth one and engagement teeth two mesh under the effect of electromagnet stage clip expansion force when the electromagnet no power; This moment, top axle wobbling action reached ball link by universal joint; Through unilateral bearing action is reached bottom spindle again, bottom spindle reaches action and realizes the feeding function on the presser foot component;
When electromagnet is switched on, move on (backstitching state) upper joint-shaft and break away from bottom spindle; Engagement teeth one are separated with engagement teeth two; This moment, the top axle can't be with transmission of power to roller press assembly, and this moment, roller press was in free state since through cloth with the drawing-inroller mediate contact; So also indirectly the drawing-inroller action is reached roller press, realizes backstitching the feeding function from face.
Claims (10)
1. a roller car roller press is just backstitching driving mechanism; Be arranged on the body of Sewing machines and and link to each other with roll wheel assembly; It is characterized in that this device comprises that actuator (1), roller connect lever (5) and connector that is used for linking to each other with roll wheel assembly and guide (7), above-mentioned rollers connects lever (5) middle part and is hinged on the body; The two ends that roller connects lever (5) are hinged with actuator (1) and connector respectively; Described guide (7) is connected on the body, and guide (7) is enclosed within on the connector, and described actuator (1) locates to be provided with the spring (3) that makes connector have the trend of moving down.
2. roller car roller press according to claim 1 is just backstitching driving mechanism, it is characterized in that, described actuator (1) is an electromagnet, and the iron core of electromagnet (1a) connects lever (5) one ends and is hinged with roller.
3. roller car roller press according to claim 2 is just backstitching driving mechanism, it is characterized in that, the iron core (1a) that described spring (3) is enclosed within electromagnet goes up and the two ends of spring (3) act on respectively on electromagnet and the iron core (1a).
4. roller car roller press according to claim 3 is just backstitching driving mechanism, it is characterized in that, is fixed with jump ring (4) on the described electromagnet core (1a), and an end roof pressure of above-mentioned spring (3) is on jump ring (4).
5. just backstitching driving mechanism according to claim 1 or 2 or 3 or 4 described roller car roller press, it is characterized in that, said actuator (1) sidepiece is fixed with and is used for the fixed head (2) that links to each other with the Sewing machines body.
6. just backstitching driving mechanism according to claim 1 or 2 or 3 or 4 described roller car roller press, it is characterized in that, described guide (7) is block and on guide (7), has the through hole that is complementary with connector.
7. roller car roller press according to claim 6 is just backstitching driving mechanism; It is characterized in that; Said connector comprises that the guide post (6) and the guide post (6) that are hinged on roller connection lever (5) end are in the above-mentioned guide (7); Be connected with a upper joint-shaft (8) on the said guide post (6); Being provided with that upper joint-shaft (8) bottom is coaxial can be with respect to the bottom spindle (9) of upper joint-shaft (8) axis direction translation, and bottom spindle (9) can rotate with respect to upper joint-shaft (8), and said upper joint-shaft (8) end has engagement teeth one (8a); Bottom spindle (9) end has the engagement teeth two (9a) that can be meshed with engagement teeth one (8a), and said upper joint-shaft has the Power Component that can drive its one-directional rotation on (8).
8. roller car roller press according to claim 7 is just backstitching driving mechanism; It is characterized in that; Described Power Component comprises the unilateral bearing (10) that is connected on the upper joint-shaft (8) and flexibly connects the ball link (11) on the unilateral bearing (10); A top axle (14) that can rotate and a universal joint (12), the other end of above-mentioned ball link (11) and universal joint (12) flexible connection.
9. roller car roller press according to claim 8 is just backstitching driving mechanism; It is characterized in that; The quantity of said ball link (11) is two, and the quantity of said unilateral bearing (10) is two, and said unilateral bearing (10) is along the axial adjacent setting of upper joint-shaft (8); One end of above-mentioned two ball connecting rods (11) all links with universal joint (12), and the other end of above-mentioned two ball connecting rods (11) is connected on the corresponding unilateral bearing (10).
10. roller car roller press according to claim 7 is just backstitching driving mechanism; It is characterized in that; Be provided with stage clip (13) between said upper joint-shaft (8) and the guide post (6), the elastic force effect under upper joint-shaft (8) have the trend that engagement teeth one (8a) and engagement teeth two (9a) engagement were gone up and made to bottom spindle (9) that is resisted against.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110339446 CN102505364B (en) | 2011-11-01 | 2011-11-01 | Normal stitch and reverse stitch driving mechanism for roller presser foot of roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110339446 CN102505364B (en) | 2011-11-01 | 2011-11-01 | Normal stitch and reverse stitch driving mechanism for roller presser foot of roller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102505364A true CN102505364A (en) | 2012-06-20 |
| CN102505364B CN102505364B (en) | 2013-04-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110339446 Expired - Fee Related CN102505364B (en) | 2011-11-01 | 2011-11-01 | Normal stitch and reverse stitch driving mechanism for roller presser foot of roller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102505364B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104499194A (en) * | 2015-01-20 | 2015-04-08 | 浙江中捷缝纫科技有限公司 | Sewing machine roller presser foot stitch and backstitch driving mechanism |
| CN109652925A (en) * | 2019-01-29 | 2019-04-19 | 安徽杰羽制鞋机械科技有限公司 | A kind of sewing machine upper roller feeding mechanism and send needle linkage mechanism |
| CN109667071A (en) * | 2019-01-29 | 2019-04-23 | 安徽杰羽制鞋机械科技有限公司 | Mechanism is backstitched under a kind of sewing machine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07299268A (en) * | 1994-05-10 | 1995-11-14 | Juki Corp | Device for feeding cloth for sewing machine |
| CN101086105A (en) * | 2006-06-08 | 2007-12-12 | 禾格实业有限公司 | Direct-drive type servo driving structure of cloth-pulling device |
| CN201686824U (en) * | 2010-04-22 | 2010-12-29 | 九牧王股份有限公司 | Cloth dragging device of sewing machine |
-
2011
- 2011-11-01 CN CN 201110339446 patent/CN102505364B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07299268A (en) * | 1994-05-10 | 1995-11-14 | Juki Corp | Device for feeding cloth for sewing machine |
| CN101086105A (en) * | 2006-06-08 | 2007-12-12 | 禾格实业有限公司 | Direct-drive type servo driving structure of cloth-pulling device |
| CN201686824U (en) * | 2010-04-22 | 2010-12-29 | 九牧王股份有限公司 | Cloth dragging device of sewing machine |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104499194A (en) * | 2015-01-20 | 2015-04-08 | 浙江中捷缝纫科技有限公司 | Sewing machine roller presser foot stitch and backstitch driving mechanism |
| CN109652925A (en) * | 2019-01-29 | 2019-04-19 | 安徽杰羽制鞋机械科技有限公司 | A kind of sewing machine upper roller feeding mechanism and send needle linkage mechanism |
| CN109667071A (en) * | 2019-01-29 | 2019-04-23 | 安徽杰羽制鞋机械科技有限公司 | Mechanism is backstitched under a kind of sewing machine |
| CN109667071B (en) * | 2019-01-29 | 2024-03-01 | 安徽杰羽制鞋机械科技有限公司 | Lower backstitch mechanism of sewing machine |
| CN109652925B (en) * | 2019-01-29 | 2024-03-26 | 安徽杰羽制鞋机械科技有限公司 | Upper roller feeding mechanism and needle feeding linkage mechanism of sewing machine |
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| Publication number | Publication date |
|---|---|
| CN102505364B (en) | 2013-04-24 |
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Owner name: ZHEJIANG ZOJE SEWING TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: ZHONGJIE SEWING MACHINE CO., LTD. Effective date: 20140928 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140928 Address after: 317604 Yuhuan County barley island Subdistrict Office, Zhejiang, Taizhou Patentee after: Zhejiang Zoje Sewing Technology Co., Ltd. Address before: 317604 Yuhuan County barley island Subdistrict Office, Zhejiang, Taizhou Patentee before: Zhongjie Sewing Machine Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20151101 |
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| EXPY | Termination of patent right or utility model |