CN202017116U - Upper line cutting device - Google Patents
Upper line cutting device Download PDFInfo
- Publication number
- CN202017116U CN202017116U CN2011200257934U CN201120025793U CN202017116U CN 202017116 U CN202017116 U CN 202017116U CN 2011200257934 U CN2011200257934 U CN 2011200257934U CN 201120025793 U CN201120025793 U CN 201120025793U CN 202017116 U CN202017116 U CN 202017116U
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- CN
- China
- Prior art keywords
- fixed
- knife rest
- cutting device
- chute
- sliding guide
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses an upper line cutting device for a sewing machine. The upper line cutting device comprises a cutter rest; the rear part of the cutter rest is fixed with an electromagnetic element; the central shaft of the electromagnetic element is fixed with a swing arm; the swinging end of the swing arm is movably connected with the rear end of a sliding guide plate; the front end of the sliding guide plate is fixed with a movable cutter; a fixed cutter is arranged near the movable cutter; the front end of the cutter rest is provided with a line clamping slice; the line clamping part of the line clamping slice is pressed against the movable cutter; the cutter rest is provided with a returning spring by which the movable cutter is pulled back to be reset; a sliding chute is formed in the middle of the sliding guide plate; the sliding chute consists of a rear straight chute, an inclined chute which is bent and extended from the front end of the rear straight chute to the hook part of the movable cutter, and a front straight chute which is extended from the front end of the inclined chute; and a guide piece passes through the chute and is fixed on the cutter rest, so that the sliding guide plate is limited by the guide piece and the sliding chute to do orbital transfer movement. The upper line cutting device has the advantages of cutting lines accurately and avoiding machine needles effectively.
Description
Technical field
The utility model relates to a kind of Sewing machines, refers in particular to a kind of last thread cutting device that is used for Sewing machines.
Background technology
The common last thread cutting device that is used for Sewing machines includes a knife rest, one is fixed in the fixed cutting tool at this knife rest front end place, one is arranged at the sliding guide on this knife rest, the one movable cutting knife between this knife rest and fixed cutting tool and that is fixed in this sliding guide front end place connects with sliding guide is used to drive the straight-line electromagnetic component of this sliding guide, this electromagnetic component drives the car pin place that this movable cutting knife moves to Sewing machines, capture the suture that should cut off and retract, utilize the cooperation of movable cutting knife and fixed cutting tool and suture cut off, and by one be arranged on this knife rest elastic pressuring plate and with the end of a thread clamping of suture.
The last thread cutting device of the above-mentioned type because sliding guide moves along a straight line, makes that also the movable cutting knife on it moves along a straight line, and like this, causes the error of tangent line easily, is difficult for avoiding the car pin.
Summary of the invention
Technical problem to be solved in the utility model goes up the phenomenon that thread cutting device occurs the tangent line error easily and is difficult for avoiding the car pin for existing, provide a kind of tangent line accurately and movable cutting knife in motion process, can effectively avoid the car pin be used for Sewing machines on thread cutting device.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: a kind of last thread cutting device that is used for Sewing machines, include a knife rest, the place, rear portion of described knife rest is fixed with an electromagnetic component, be fixed with a swing arm on the central shaft of described electromagnetic component, the swinging end of described swing arm connects with the rear end of a sliding guide is movable, the front end place of described sliding guide is fixed with a movable cutting knife, be close in described movable cutting knife and be provided with a fixed cutting tool, and make described movable cutting knife between described fixed cutting tool and knife rest, the front end place of described knife rest is provided with a thread tension disc, the clamp portion of described thread tension disc presses on described movable cutting knife, be provided with one in described knife rest and retract the back-moving spring that movable cutting knife resets, the place is formed with a chute in the middle of the described sliding guide, described chute is by a back straight trough, one extends and the skewed slot and the preceding straight trough that extends to form from the front end of described skewed slot that form constitute towards the hook part direction bending of described movable cutting knife from the front end of described back straight trough, use a guide member to pass described chute and be fixed in described knife rest, described sliding guide can be done under the qualification of guide member and chute become the rail motion.
Useful technique effect of the present utility model is: by the setting of chute and guide member, make sliding guide under the qualification of guide member and chute, can do the motion that becomes rail, and then make the movable cutting knife that is fixed thereon become rail when colluding line and be folded to suture stretching out, thereby improve the accuracy of colluding line, and the motion of the change rail by this movable cutting knife, and avoid the car pin.
Description of drawings
Fig. 1 is a perspective view of the present utility model.
Fig. 2 is a decomposition texture schematic diagram of the present utility model.
Fig. 3 is an exploded structural representation of the present utility model.
Fig. 4 is an exploded structural representation of the present utility model.
The specific embodiment
For making those of ordinary skill in the art be expressly understood the purpose of this utility model, technical scheme and advantage more, the utility model is further elaborated below in conjunction with drawings and Examples.
Referring to figs. 1 to shown in Figure 4, the last thread cutting device that is used for Sewing machines disclosed in the utility model includes a knife rest 10, is fixed with an electromagnetic component 12 in the place, rear portion of this knife rest 10, is fixed with a swing arm 14 on the central shaft 120 of this electromagnetic component 12.In this embodiment, one end place of this swing arm 14 has a left sandwich part 140 and a right sandwich part 141 on the other side, between left and right sandwich part 140,141, be formed with a clamping hole 142, the central shaft 120 of this electromagnetic component 12 penetrates in this clamping hole 142, and use a screw 143 to screw togather left and right sandwich part 140,141 and make it to clamp central shaft 120, thereby realize that swing arm 14 removably is fixed on the central shaft 120 of this electromagnetic component 12.After making its work for electromagnetic component 12 energisings, can drive swing arm 14 is that fan-shaped swing is done at the center with its rotating shaft 120.
The swinging end 144 of this swing arm 14 connects with the rear end of a sliding guide 16 is movable, rear end in this sliding guide 16 is fixed with a trundle 160, and be formed with a through hole 145 in swinging end 144 places of this swing arm 14, this trundle 160 is inserted in this through hole 145, and is driven the motion of this sliding guide 16 by the swing of this swing arm 14.The front end place of this sliding guide 16 is fixed with a movable cutting knife 18, uses two-screw 180 to pass the place, rear portion of this movable cutting knife 18 and is screwed together in the front end place of this sliding guide 16, and realize fixedly installing of this movable cutting knife 18.
The place is formed with a chute 161 in the middle of this sliding guide 16, this chute 161 is by a back straight trough 162, one from the front end of this back straight trough 162 the hook part 182 directions bending towards this movable cutting knife 18 extend and the skewed slot 163 and the preceding straight trough 164 that extends to form from the front end of this skewed slot 163 that form constitute, use a guide member 165 to pass this chute 161 and be screwed together in this knife rest 10, like this, under the drive of swing arm 14, sliding guide 16 can be done the motion that becomes rail under the qualification of guide member 165 and chute 161, make the movable cutting knife 18 that is fixed thereon become rail when colluding line and be folded to suture stretching out, and then improve the accuracy collude line, and the motion of the change rail by this movable cutting knife 18, and avoid the car pin.Usually, this guide member 165 can be selected the step screw for use.
Be close in this movable cutting knife 18 and be provided with a fixed cutting tool 20, and make this movable cutting knife 18 between this fixed cutting tool 20 and knife rest 10, and a thread tension disc 22 is set in the front end place of this knife rest 10, the clamp portion 220 of this thread tension disc 22 presses on this movable cutting knife 18, when movable cutting knife 18 colludes back suture, and cooperate fixed cutting tool 20 and when suture cut off, this thread tension disc 22 suture the end of a thread that clamping is cut off by its clamp portion 220.The arranged outside of this thread tension disc 22 has the compressing tablet 24 of adjustment, this adjustment compressing tablet 24 has the adjustment end 240 of the clamp portion 220 that mortgages on this thread tension disc 22 of a bending, be provided with one in the outside of adjusting compressing tablet 24 and adjust plate 26, use fixed screw 260 to pass in turn and adjust plate 26, adjust compressing tablet 24 and thread tension disc 22 and be screwed together in knife rest 10, and realize the fixing of above-mentioned each parts.The front end place of this adjustment plate 26 is formed with a threaded adjustment hole 261, one adjustment screw 28 is screwed in this threaded adjustment hole 261 and presses on this adjustment compressing tablet 24, by regulating this adjustment screw 28, can adjust this thread tension disc 22 and press on the elasticity of movable cutting knife 18, thereby adjust the chucking power of its clamping suture.
The front end place of this knife rest 10 is provided with a bearing 30, be equipped with a bearing pin 32 in this bearing 30, this bearing pin 32 is connected with a carriage 34, this carriage 34 is recessed on and is formed with a straight trough 340, movable cutting knife 18 place this straight trough 340 and can be in this straight trough 340 rectilinear motion, this fixed cutting tool 20 then is fixed on this carriage 34 and movable cutting knife 18 is limited in this straight trough 340.Like this, when sliding guide 16 was done the motion of change rail under the drive of swing arm 14, carriage 34 can cooperate the motion of this movable cutting knife 18 along with rotation.
This knife rest 10 is provided with a back-moving spring 36, to spur resetting of this movable cutting knife 18.In the embodiment shown in the figures, place, rear portion in knife rest 10 is fixed with a spring(-supported) mount 361 by screw 360, and be provided with a connecting column 362 in this sliding guide 16, the two ends of back-moving spring 36 are connected in this spring(-supported) mount 361 and connecting column 362 respectively, after movable cutting knife 18 stretches out and catches on suture, retract by this back-moving spring 36 and to reset.
The utility model is adjacent to the car pin place of Sewing machines, during work, electromagnetic component 12 energisings, driving swing arm 14 is that fan-shaped swing is done at the center with central shaft 120, drive sliding guide 16 and become the rail motion forward, back-moving spring 36 simultaneously stretches, being fixed in movable cutting knife 18 on the sliding guide 16 stretches out and catches on suture, simultaneously, electromagnetic component 12 outage, sliding guide 16 is reset spring 36 back and forth, makes movable cutting knife 18 collude back suture and cooperates fixed cutting tool 20 cut-out sutures, and by thread tension disc 22 clamping suture the end of a thread, thereby finish tangent line operation.
This knife rest 10 is provided with a mounting bracket 38, to be used for last thread cutting device is installed on the nearly car pin place of Sewing machines, consult accompanying drawing, this mounting bracket 38 includes one first support 380 and one second support 381, wherein, this first support 380 includes first gusset piece 382 and of being close to this knife rest 10 and bends second gusset piece 383 that extends to form from this first gusset piece 382, be formed with two first elongated holes 384 on this first gusset piece 382, use two holding screws 385 to pass two first elongated holes 384 respectively and be screwed together in knife rest 10, and realize being fixedly connected of this first support 380 and knife rest 10 being formed with a screw 386 on this second gusset piece 383; This second support 381 includes the 3rd gusset piece 387 and of being close to this first gusset piece 382 and bends the tetrad fishplate bar 388 that extends to form from the 3rd gusset piece 387, be formed with one second elongated hole 389 on the 3rd gusset piece 387, use a holding screw 390 to pass this second elongated hole 389 and be screwed together in the screw 386 of this second gusset piece 383, and realize being fixedly connected of second support 381 and first support 380.Like this, by regulate first support 380 with respect to the position of knife rest 10 and/or second support 381 with respect to the position of first support 380, can realize that whole cutter is installed on the position on the Sewing machines, to satisfy different user demands.
The above only is a preferred embodiment of the present utility model, but not the utility model is done any form restriction, and all equivalent variations or modifications of being done in the claim scope all should fall within the protection domain of the present utility model.
Claims (10)
1. last thread cutting device that is used for Sewing machines, include a knife rest (10), the place, rear portion of described knife rest (10) is fixed with an electromagnetic component (12), be fixed with a swing arm (14) on the central shaft (120) of described electromagnetic component (12), the swinging end (144) of described swing arm (14) connects with the rear end of a sliding guide (16) is movable, the front end place of described sliding guide (16) is fixed with a movable cutting knife (18), be close in described movable cutting knife (18) and be provided with a fixed cutting tool (20), and described movable cutting knife (18) is positioned between described fixed cutting tool (20) and the knife rest (10), the front end place of described knife rest (10) is provided with a thread tension disc (22), the clamp portion (220) of described thread tension disc (22) presses on described movable cutting knife (18), be provided with one in described knife rest (10) and retract the back-moving spring (36) that movable cutting knife (18) resets, it is characterized in that: the place is formed with a chute (161) in the middle of the described sliding guide (16), described chute (161) is by a back straight trough (162), one extends and the skewed slot (163) and the preceding straight trough (164) that extends to form from the front end of described skewed slot (163) that form constitute towards hook part (182) the direction bending of described movable cutting knife (18) from the front end of described back straight trough (162), use a guide member (165) to pass described chute (161) and be fixed in described knife rest (10), described sliding guide (16) can be done down in the guide member (165) and the qualification of chute (161) become rail and move.
2. the thread cutting device of going up as claimed in claim 1, it is characterized in that: the front end place of described knife rest (10) is provided with a bearing (30), be equipped with a bearing pin (32) in the described bearing (30), described bearing pin (32) is connected with a carriage (34), described carriage (34) is recessed on and is formed with a straight trough (340), described movable cutting knife (18) place described straight trough (340) and can be in described straight trough (340) in rectilinear motion, described fixed cutting tool (20) then is fixed on the described carriage (34) and described movable cutting knife (18) is limited in the described straight trough (340).
3. the thread cutting device of going up as claimed in claim 1, it is characterized in that: described knife rest (10) is provided with a mounting bracket (38), described mounting bracket (38) includes one first support (380) and one second support (381), wherein, described first support (380) includes first gusset piece (382) and of being close to described knife rest (10) and bends second gusset piece (383) that extends to form from described first gusset piece (382), be formed with at least one first elongated hole (384) on described first gusset piece (382), use holding screw (385) to pass described first elongated hole (384) and be screwed together in described knife rest (10), be formed with a screw (386) on described second gusset piece (383), described second support (381) includes the 3rd gusset piece (387) and of being close to described first gusset piece (382) and bends the tetrad fishplate bar (388) that extends to form from described the 3rd gusset piece (387), be formed with one second elongated hole (389) on described the 3rd gusset piece (387), use holding screw (390) to pass described second elongated hole (389) and be screwed together in the screw (386) of described second gusset piece (383).
4. the thread cutting device of going up as claimed in claim 1, it is characterized in that: the arranged outside of described thread tension disc (22) has one to adjust compressing tablet (24), described adjustment compressing tablet (24) has the adjustment end (240) of the clamp portion (220) that mortgages on described thread tension disc (22) of a bending, and be provided with one in the outside of described adjustment compressing tablet (24) and adjust plate (26), the front end place of described adjustment plate (26) is formed with a threaded adjustment hole (261), and use one adjustment screw (28) is screwed in described threaded adjustment hole (261) and presses on described adjustment compressing tablet (24).
5. the thread cutting device of going up as claimed in claim 4 is characterized in that: use fixed screw (260) passes described adjustment plate (26) in turn, adjusts compressing tablet (24) and thread tension disc (22) and is screwed together in described knife rest (10).
6. the thread cutting device of going up as claimed in claim 1, it is characterized in that: an end place of described swing arm (14) has a left sandwich part (140) and a right sandwich part on the other side (141), between described left sandwich part (140) and right sandwich part (141), be formed with a clamping hole (142), the central shaft (120) of described electromagnetic component (12) penetrates in the described clamping hole (142), and uses a screw (143) to screw togather described left sandwich part (140) and right sandwich part (141) and make it to clamp central shaft (120).
7. the thread cutting device of going up as claimed in claim 1, it is characterized in that: the rear end of described sliding guide (16) is fixed with a trundle (160), the swinging end (144) of described swing arm (14) locates to be formed with a through hole (145), and described trundle (160) is inserted in the described through hole (145) and realized that the swinging end (144) of described swing arm (14) connects with the rear end of a sliding guide (16) is movable.
8. the thread cutting device of going up as claimed in claim 1, it is characterized in that: the place, rear portion of described knife rest (10) is fixed with a spring(-supported) mount (361), described sliding guide (16) is provided with a connecting column (362), and the two ends of described back-moving spring (36) are connected in described spring(-supported) mount (361) and connecting column (362) respectively.
9. the thread cutting device of going up as claimed in claim 1, it is characterized in that: described guide member (165) is the step screw.
10. the thread cutting device of going up as claimed in claim 3, it is characterized in that: first elongated hole (384) that is formed on described first gusset piece (382) is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200257934U CN202017116U (en) | 2011-01-26 | 2011-01-26 | Upper line cutting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200257934U CN202017116U (en) | 2011-01-26 | 2011-01-26 | Upper line cutting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202017116U true CN202017116U (en) | 2011-10-26 |
Family
ID=44810787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200257934U Expired - Fee Related CN202017116U (en) | 2011-01-26 | 2011-01-26 | Upper line cutting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202017116U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107237063A (en) * | 2017-08-11 | 2017-10-10 | 杰克缝纫机股份有限公司 | A kind of cutting facility of sewing machine |
| CN107587273A (en) * | 2016-07-07 | 2018-01-16 | 启翔股份有限公司 | Edge-pulling machine with thread cutter |
| CN109230497A (en) * | 2018-10-22 | 2019-01-18 | 深圳市大森林智能自动科技有限公司 | The line taking folder that single line material picks and places |
-
2011
- 2011-01-26 CN CN2011200257934U patent/CN202017116U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107587273A (en) * | 2016-07-07 | 2018-01-16 | 启翔股份有限公司 | Edge-pulling machine with thread cutter |
| CN107237063A (en) * | 2017-08-11 | 2017-10-10 | 杰克缝纫机股份有限公司 | A kind of cutting facility of sewing machine |
| CN107237063B (en) * | 2017-08-11 | 2020-01-31 | 杰克缝纫机股份有限公司 | thread cutting device of sewing machine |
| CN109230497A (en) * | 2018-10-22 | 2019-01-18 | 深圳市大森林智能自动科技有限公司 | The line taking folder that single line material picks and places |
| CN109230497B (en) * | 2018-10-22 | 2024-03-29 | 大森林智能科技(广东)有限公司 | Wire clip for single wire taking and placing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHENZHEN YANO TECHNOLOGY CO., LTD. Free format text: FORMER NAME: YANUO SEWING EQUIPMENT CO. LTD., SHENZHEN CITY |
|
| CP03 | Change of name, title or address |
Address after: 1-3, 4A building, No. 48, 228 Industrial Zone, Fourth Street, Shenzhen community, Henggang street, Longgang District, Guangdong, China Patentee after: Shenzhen Yano Technology Co., Ltd. Address before: Buji Town, Longgang District of Shenzhen City, Guangdong province 518000 Shen Hui Road No. 369 Patentee before: Yanuo Sewing Equipment Co. Ltd., Shenzhen City |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111026 Termination date: 20190126 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |