CN102505364B - Normal stitch and reverse stitch driving mechanism for roller presser foot of roller - Google Patents
Normal stitch and reverse stitch driving mechanism for roller presser foot of roller Download PDFInfo
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- CN102505364B CN102505364B CN 201110339446 CN201110339446A CN102505364B CN 102505364 B CN102505364 B CN 102505364B CN 201110339446 CN201110339446 CN 201110339446 CN 201110339446 A CN201110339446 A CN 201110339446A CN 102505364 B CN102505364 B CN 102505364B
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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 sewing machine, particularly the roller sewing machine roller press is just backstitching driving mechanism.
Background technology
The roller sewing machine Sewing machines is to adopt electric integrated realization automatic shearing, automatic needle-foot-lifting, automatically the automation mechanized operation such as backstitch.Adopt the synchronous feeding of upper and lower roller and eedle, cloth-feeding system is safe and reliable, makes the sewing palpus smooth, and stitching is attractive in appearance.Be applicable to the leather sewing of various thickness.According to the demand in market, crosspointer series has various needle gage.
At present, roller sewing machine needle bar in sewing machine pendulous device normally adopts the air cylinder driven pendulous device.Because it is client of certain scale that differing of using that roller sewing machine produces establishes a capital, and adopts the roller sewing machine 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 switching between normally sewing and backstitching, and the cylinder degree of fatigue is high, uses a period of time exhaust hood to damage, impact 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 to backstitch and be preset in the interior power transmitting elements of Sewing machines column, connecting rod lower link and upper connecting rod action, and control arrangement of clutch, upper or the lower feed spool of final drive is to the shaft-driven pattern of this transmission, and in the drive or lower drawing-inroller just producing, reversing, 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 for the prior art existence, provide a kind of so that the drive unit of the roller coupling assembling that the roller sewing machine stability in use is high.
Purpose of the present invention can realize by following technical proposal: a kind of roller sewing machine roller press is just backstitching driving mechanism, be arranged on the body of Sewing machines and with roll wheel assembly and link to each other, it is characterized in that, this driving mechanism comprises actuator, roller connects 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, guide is enclosed within on the connector, described actuator place is provided with the spring that makes connector have the trend of moving down, described actuator is electromagnet, described 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 described 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, bottom spindle can rotate with respect to upper joint-shaft, described 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 described upper joint-shaft.
When Sewing machines is just stitching state, connect lever to the connector place bottom at the elastic force effect bottom roller of spring, move down so that connector drives roll wheel assembly, just stitching state so that roller sewing machine stably is in.
After actuator overcomes spring force, make roller connect lever swing to opposite direction, namely Sewing machines is in the state of backstitching.
Just backstitching in the driving mechanism at above-mentioned roller sewing machine roller press, described actuator is 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 higher.
Just backstitching in the driving mechanism at above-mentioned roller sewing machine roller press, described spring housing acts on respectively on electromagnet and the iron core on the iron core of electromagnet and the two ends of spring.
Just backstitching in the driving mechanism at above-mentioned roller sewing machine roller press, be fixed with jump ring on the described electromagnet core, the end top of above-mentioned spring is pressed on the jump ring.
Jump ring can easily be connected on the electromagnet core, by jump ring spring is located.
Just backstitching in the driving mechanism at above-mentioned roller sewing machine roller press, described actuator sidepiece is fixed with the fixed head that links to each other for the Sewing machines body.
Actuator can easily be connected on the body of Sewing machines by fixed head.
Just backstitching in the driving mechanism at above-mentioned roller sewing machine roller press, described guide is block and has the through hole that is complementary with connector at guide.
Such structure so that connector can move up and down along the guide straight line.
Just backstitching in the driving mechanism at above-mentioned roller sewing machine roller press, described Power Component comprises the unilateral bearing that is connected on the upper joint-shaft and the ball link that is flexibly connected on the unilateral bearing, top axle that can rotate and a universal joint, the other end of above-mentioned ball link and universal joint are flexibly connected.
Just backstitching in the driving mechanism at above-mentioned roller sewing machine roller press, the quantity of described ball link is two, the quantity of described unilateral bearing is two, described unilateral bearing is along the axial adjacent setting of upper joint-shaft, one 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.
Just backstitching in the driving mechanism at above-mentioned roller sewing machine roller press, be provided with stage clip between described 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 the electromagnet no power (when just stitching) under the effect of spring expansion force so that engagement teeth one and two engagements of engagement teeth, 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 the roller press assembly, and this moment, roller press was in free state, owing to follow the drawing-inroller mediate contact by cloth, 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 sewing machine 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 sewing machine roller press is just backstitching the Sewing machines of driving mechanism.
Fig. 2 is the perspective view that this roller sewing machine roller press is just backstitching driving mechanism.
Fig. 3 is the main TV structure schematic diagram that this roller sewing machine 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, the roller sewing machine use in sewing machine is in the leather sewn operation of the industrial various thickness of leather product, suitcase, footwear and decoration.This roller sewing machine 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 the connector 6 and the guide 7 that link to each other for roll wheel assembly.
In the present embodiment, actuator 1 is electromagnet, and the iron core 1a of electromagnet connects lever 5 one ends and is hinged with roller.The iron core 1a two ends upper and spring 3 that spring 3 is enclosed within electromagnet act on respectively on electromagnet and the iron core 1a.
Be fixed with jump ring 4 on the electromagnet core 1a, the end top of spring 4 is pressed on the 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 described 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, bottom spindle can rotate with respect to upper joint-shaft, described 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 described upper joint-shaft.
Power Component comprises the unilateral bearing that is connected on the upper joint-shaft and is flexibly connected ball link 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 described unilateral bearing is two, described 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 the electromagnet no power (when just stitching) under the effect of electromagnet stage clip expansion force so that engagement teeth one and two engagements of engagement teeth, 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 the roller press assembly, and this moment, roller press was in free state, owing to follow the drawing-inroller mediate contact by cloth, so also indirectly the drawing-inroller action is reached roller press, realizes backstitching the feeding function from face.
Claims (9)
1. a roller sewing machine roller press is just backstitching driving mechanism, be arranged on the body of Sewing machines and with roll wheel assembly and link to each other, it is characterized in that, this driving mechanism comprises actuator (1), roller connects lever (5) and the connector and the guide (7) that are used for linking to each other with roll wheel assembly, 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, guide (7) is enclosed within on the connector, described actuator (1) locates to be provided with the spring (3) that makes connector have the trend of moving down, described actuator (1) is electromagnet, described 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 described 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, bottom spindle (9) can rotate with respect to upper joint-shaft (8), described 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 described upper joint-shaft has the Power Component that can drive its one-directional rotation on (8).
2. roller sewing machine roller press according to claim 1 is just backstitching driving mechanism, it is characterized in that, described actuator (1) is electromagnet, and the iron core of electromagnet (1a) connects lever (5) one ends and is hinged with roller.
3. roller sewing machine roller press according to claim 2 is just backstitching driving mechanism, it is characterized in that, iron core (1a) two ends upper and spring (3) that described spring (3) is enclosed within electromagnet act on respectively on electromagnet and the iron core (1a).
4. roller sewing machine 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 the end top of above-mentioned spring (3) is pressed on the jump ring (4).
According to claim 1 and 2 or 3 or 4 described roller sewing machine roller press just backstitching driving mechanism, it is characterized in that described actuator (1) sidepiece is fixed with for the fixed head (2) that links to each other with the Sewing machines body.
According to claim 1 and 2 or 3 or 4 described roller sewing machine roller press just backstitching driving mechanism, it is characterized in that described guide (7) is block and has the through hole that is complementary with connector at guide (7).
7. roller sewing machine roller press according to claim 6 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 is flexibly connected ball link (11) on the unilateral bearing (10), 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.
8. roller sewing machine roller press according to claim 7 is just backstitching driving mechanism, it is characterized in that, the quantity of described ball link (11) is two, the quantity of described unilateral bearing (10) is two, described 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).
9. roller sewing machine roller press according to claim 6 is just backstitching driving mechanism, it is characterized in that, be provided with stage clip (13) between described upper joint-shaft (8) and the guide post (6), the elastic force effect under upper joint-shaft (8) have that to be resisted against bottom spindle (9) upper and make the trend of engagement teeth one (8a) and engagement teeth two (9a) engagement.
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 CN102505364A (en) | 2012-06-20 |
| CN102505364B true 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 |
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| CN (1) | CN102505364B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104499194B (en) * | 2015-01-20 | 2016-10-19 | 浙江中捷缝纫科技有限公司 | A kind of sewing machine roller press is just backstitching drive mechanism |
| 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 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (1)
| 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 |
-
2011
- 2011-11-01 CN CN 201110339446 patent/CN102505364B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平7-299268A 1995.11.14 |
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| Publication number | Publication date |
|---|---|
| CN102505364A (en) | 2012-06-20 |
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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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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 |