CN202298133U - Center cutter mechanism for automatic pocket sewing machine - Google Patents
Center cutter mechanism for automatic pocket sewing machine Download PDFInfo
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- CN202298133U CN202298133U CN2011203851977U CN201120385197U CN202298133U CN 202298133 U CN202298133 U CN 202298133U CN 2011203851977 U CN2011203851977 U CN 2011203851977U CN 201120385197 U CN201120385197 U CN 201120385197U CN 202298133 U CN202298133 U CN 202298133U
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- connecting rod
- cutter
- hinged
- flat seam
- seam machine
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Abstract
The utility model provides a center cutter mechanism for an automatic pocket sewing machine, which belongs to the technical field of machinery and solves the problem that existing center cutter mechanism for the automatic pocket sewing machine is low in cutting distinguishability, low in mechanical performance and the like. The center cutter mechanism for the automatic pocket sewing machine is arranged on a body of the pocket sewing machine and connected with a center cutter rod of the pocket sewing machine. The mechanism comprises a cutter link, a driving mechanism and a clutch mechanism, one end of the cutter link is hinged onto the center cutter rod, the other end of the cutter link is connected with the driving mechanism, the driving mechanism in action can drive the center cutter rod to vertically reciprocate through the cutter link, and the clutch mechanism is connected with the cutter link and enables the driving mechanism in action to drive or not to drive the center cutter rod to reciprocate. The center cutter mechanism for the automatic pocket sewing machine has the advantages of high practical value, high use safety and the like.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of Sewing machines, particularly a kind of central cutter mechanism that opens bag flat seam machine automatically.
Background technology
Sewing machine for covering chain stitch mainly is with a sewing thread, on sewing, forms a kind of stitching, the machine that makes one or more layers sewing interweave or unite by a seam.Usually be divided into thin material and two kinds of purposes of thick material, sewing machine for covering chain stitch can be made goods such as fabric such as cotton, fiber crops, silk, hair, artificial fibre and leather, plastics, paper, and it is knitting that thin material generally is used for, underwear; Shirt, uniform etc., thick material generally is used for all kinds of sportswears, jean; Fashionable dress, overcoat, shoes and hats, skin is young; Case and bag etc., flat seam machine is the most basic car type at sewing device, in making, is the simplest stitching; The stitching neat appearance, the stitching that sew are even, and smooth firmly sewing velocity is fast, easy and simple to handle, and use is easily understood.The highest sewing velocity is 4000-5000rpm.
Automatically opened the central cutter mechanism of bag flat seam machine, how obtaining driving force in the main CD-ROM drive motor as the eedle up-down mechanism, so two eedles and central cutter synchronously move up and down in the past.But in when sewing bag of opening of reality, the terminal location of desired each stitching of user is to the terminal location of central cutter joint-cutting, with the pin width of cloth and the variation of angle cutter joint-cutting angle and inconsistent.Before more than or equal to the eedle of design organization and central cutter sword apart from the time, can be through the arrangement of clutch of central cutter mechanism, thus griffe separation center cutting knife control slot length earlier; When less than the time this design can not accomplish, and can not satisfy user demand.Moreover; Because this mechanism and central cutter are same drive source; Can not change the shearing length that central cutter moves up and down, promptly the shearing length of an amount of separation is a definite value, and it is coarse to make it cut off resolution ratio; In making the way, central cutter is risen to the method that limits cut state, can not form the center joint-cutting of correct length.
The defective of this mechanism is that the knife bar drive force source can not satisfy little pin width of cloth demand in main motor; Cutting resolution ratio is low, the center slot length is not accurate; No matter clutch cylinder and central cutter are all to move with main motor in cut state or restriction cut state, increased noise and vibration, reduced mechanical performance, have increased potential safety hazard.
The existing central cutter mechanism that other open bag flat seam machine automatically also all exists similar problem.
Summary of the invention
The purpose of the utility model is the problems referred to above that exist to prior art, and a kind of simple in structure, central cutter mechanism that opens bag flat seam machine automatically that job stability is high is provided.
The purpose of the utility model can realize through following technical proposal:
A kind of central cutter mechanism that opens bag flat seam machine automatically; Be arranged at out on the fuselage of bag flat seam machine; And it links to each other with the center knife bar of opening bag flat seam machine, it is characterized in that this mechanism comprises cutter connecting rod, driving mechanism and clutch; One end of described cutter connecting rod is hinged on the knife bar of center; The other end of cutter connecting rod links to each other with driving mechanism, can drive the center knife bar through cutter connecting rod in the driving mechanism course of action and back and forth move up and down, and clutch links to each other with cutter connecting rod and clutch can make in the above-mentioned driving mechanism course of action to drive or not drive the center knife bar and moves back and forth.
Can know that by two states this mechanism can utilize clutch to change cut state and restriction cut state; No matter whether the central cutter drive motors works during the restriction cut state, and this cutting knife all remains static, and reaches safe and reliable conversion purpose.
In the above-mentioned central cutter mechanism that opens bag flat seam machine automatically, this mechanism also comprises a guide, and above-mentioned center knife bar is connected in the guide place and the center knife bar can be along the reciprocal translation of guide.
Through guide center knife bar mobile played guide effect.
In the above-mentioned central cutter mechanism that opens bag flat seam machine automatically, described guide is the guide plate that is strip, has elongated pilot hole on the guide plate, and said center knife bar sidepiece is fixed with lead, and lead partly is embedded in above-mentioned pilot hole place.
Lead is fixed on the central cutter sidepiece through securing member, because lead is partially submerged into the pilot hole place again.Therefore, lead makes knife bar reciprocal translation in center in the pilot hole translation process.
In the above-mentioned central cutter mechanism that opens bag flat seam machine automatically; Described driving mechanism comprises motor, fixed axis, power transmission shaft, connecting rod one, connecting rod two and connecting rod three; Fixed axis and motor all are connected on the fuselage, and power transmission shaft is fixed in the rotating shaft of motor, and an end of connecting rod two is hinged on the fixed axis; One end of connecting rod one and connecting rod three is articulated in the both sides of the other end of connecting rod two through same pin; The other end of connecting rod one is hinged on edge, power transmission shaft end, and the other end of connecting rod three is hinged on the cutter connecting rod, and the length between said connecting rod two its hinged places, two ends is identical with length between connecting rod three its hinged places, two ends.
Because connecting rod two is identical with connecting rod three length, therefore, when the hinged place of connecting rod two with after aliging in the fixed axis axle center, connecting rod one dally not drivening rod two and connecting rod three swings in the motor rotation process; After the hinged place of connecting rod two was broken away from by place, fixed axis axle center, drivening rod two, connecting rod three swings finally drove the cutter connecting rod swing in connecting rod one rotation process, realize back and forth moving up and down of central cutter.
In the above-mentioned central cutter mechanism that opens bag flat seam machine automatically, described power transmission shaft end has eccentric wheel, and the other end of above-mentioned connecting rod one is hinged on the eccentric wheel and its hinged place and the skew of power transmission shaft axle center.
Obviously, the eccentric hinged place of eccentric wheel and connecting rod one in the motor-driven power transmission shaft rotating process that is arranged so that can be rotated by 360 degree, makes connecting rod one rotation.
In the above-mentioned central cutter mechanism that opens bag flat seam machine automatically; Described clutch comprises cylinder, communtation arm and switching-over connecting rod; The middle part of communtation arm is articulated on the fuselage; The piston rod of cylinder and communtation arm one end are hinged, and the communtation arm other end is hinged with switching-over connecting rod one end, and the switching-over connecting rod other end and cutter connecting rod are hinged.
Align with the fixed axis axle center in the hinged place of connecting rod two or connecting rod two hinged places are moved through cylinder by the place skew of fixed axis axle center and realized.Particularly, after the swing of air cylinder driven communtation arm, drive above-mentioned connecting rod two through the switching-over connecting rod and realize above-mentioned action.
In the above-mentioned central cutter mechanism that opens bag flat seam machine automatically, described switching-over connecting rod and connecting rod three are articulated in the both sides of cutter connecting rod through same pin.
In the above-mentioned central cutter mechanism that opens bag flat seam machine automatically, described motor is a brushless electric machine.Brushless electric machine is a kind of typical electromechanical integrated product; Because brushless direct current motor moves with autocontrol; On rotor, do not add the startup winding so can not resemble in addition the synchronous motor of heavy load starting under the frequency control, can when load changing, not produce vibration and step-out yet.
Compared with prior art, this central cutter mechanism drive source of opening bag flat seam machine automatically is independent, realizes clutch through cylinder, and is safe and reliable, has the higher utility of ratio.
Simultaneously, whether no matter motor move during the restriction cut state, and central cutter can not made operation, prevents misoperation, and safety in utilization is than higher.
In addition, it also can satisfy little pin width of cloth center joint-cutting demand, the joint-cutting terminal location to the stitching terminal location apart from controllable operating.
Description of drawings
Fig. 1 is that this central cutter mechanism that opens bag flat seam machine automatically is in the perspective view when limiting cut state.
Fig. 2 is the perspective view of this central cutter mechanism that opens bag flat seam machine automatically when being in cut state.
Fig. 3 is that written or printed documents is opened the structural representation that connecting rod one is connected with connecting rod two in the central cutter mechanism of bag flat seam machine automatically.
Among the figure, 1, the center knife bar; 1a, lead; 2, cutter connecting rod; 3, guide plate; 3a, pilot hole; 4, motor; 5, fixed axis; 6, power transmission shaft; 6a, eccentric wheel; 7, connecting rod one; 8, connecting rod two; 9, connecting rod three; 10, cylinder; 11, communtation arm; 12, switching-over connecting rod.
The specific embodiment
Sewing machine for covering chain stitch mainly is with a sewing thread, on sewing, forms a kind of stitching, the machine that makes one or more layers sewing interweave or unite by a seam.Central cutter mechanism as depicted in figs. 1 and 2, that this opens bag flat seam machine automatically be arranged at out on the fuselage of bag flat seam machine, and it links to each other with the center knife bar of opening bag flat seam machine.
This mechanism comprises cutter connecting rod 2, driving mechanism and clutch; One end of cutter connecting rod 2 is hinged on the center knife bar 1; The other end of cutter connecting rod links to each other with driving mechanism; Can drive center knife bar 1 through cutter connecting rod in the driving mechanism course of action and back and forth move up and down, clutch links to each other with cutter connecting rod 1 and clutch can make in the above-mentioned driving mechanism course of action to drive or not drive center knife bar 1 and moves back and forth.
Like Fig. 1 and Fig. 2 and shown in Figure 3, driving mechanism comprises motor 4, fixed axis 5, power transmission shaft 6, connecting rod 1, connecting rod 28 and connecting rod 39, and in the present embodiment, motor 4 is a brushless electric machine.Fixed axis 5 all is connected on the fuselage with motor 4; Power transmission shaft 6 is fixed in the rotating shaft of motor 4; One end of connecting rod 28 is hinged on the fixed axis 5, and an end of connecting rod 1 and connecting rod 39 is articulated in the both sides of the other end of connecting rod 28 through same pin, and the other end of connecting rod 1 is hinged on edge, power transmission shaft 6 end; The other end of connecting rod 39 is hinged on the cutter connecting rod 2, and the length between connecting rod 28 its hinged places, two ends is identical with length between connecting rod 39 its hinged places, two ends.In the present embodiment, power transmission shaft 6 ends have eccentric wheel 6a, and the other end of connecting rod 1 is hinged on eccentric wheel 6a and goes up and its hinged place and power transmission shaft 6 desaxes.
Clutch comprises cylinder 10, communtation arm 11 and switching-over connecting rod 12; The middle part of communtation arm 11 is articulated on the fuselage; The piston rod of cylinder 10 and communtation arm 11 1 ends are hinged, and communtation arm 11 other ends are hinged with switching-over connecting rod 12 1 ends, and switching-over connecting rod 12 other ends and cutter connecting rod 2 are hinged.Switching-over connecting rod 12 and connecting rod 39 are articulated in the both sides of cutter connecting rod 2 through same pin.
This mechanism also comprises a guide, and above-mentioned center knife bar 1 is connected in the guide place and center knife bar 1 can be along the reciprocal translation of guide.Guide is the guide plate 3 that is strip, has elongated pilot hole 3a on the guide plate 3, and said center knife bar 1 sidepiece is fixed with lead 1a, and lead 1a partly is embedded in above-mentioned pilot hole 3a place.
Brushless electric machine according to sewing speed, slot length, joint-cutting starting point and final position, calculates motor speed under the control of master cpu, the motor-driven power transmission shaft rotates then.Connecting rod one, connecting rod two, connecting rod three constitute linkage.After the piston rod withdrawal of cylinder, communtation arm around its hinged place swing, makes the hinged place of connecting rod two broken away from by place, fixed axis axle center at the cylinder piston rod active force, and mechanism makes the center knife bar be in cut state.Particularly, drivening rod two, connecting rod three swings finally drive the cutter connecting rod swing in connecting rod one rotation process, realize back and forth moving up and down of central cutter.
Stop joint-cutting when instruction when master cpu sends central cutter, the piston rod of cylinder stretches out and makes communtation arm around its hinged place swing, promotes the switching-over connecting rod, and mechanism makes the center knife bar be in the restriction cut state.Particularly, because connecting rod two is identical with connecting rod three length, therefore, the hinged place of connecting rod two is with after aliging in the fixed axis axle center, connecting rod one dally not drivening rod two and connecting rod three swings in the motor rotation process.
If the final pin of central cutter and eedle descends simultaneously, then at the time point of sewing finishing, joint-cutting only is cut to gap system end position still has distance.Therefore, cut off action as appending, main control CPU is moved control as follows: after main drive motor stops, still continuing to drive feeding motor and central cutter motor, further cut Distance Remaining and finish whole operations afterwards.
Claims (8)
1. central cutter mechanism that opens bag flat seam machine automatically; Be arranged at out on the fuselage of bag flat seam machine; And it links to each other with the center knife bar (1) of opening bag flat seam machine, it is characterized in that this mechanism comprises cutter connecting rod (2), driving mechanism and clutch; One end of described cutter connecting rod (2) is hinged on the center knife bar (1); The other end of cutter connecting rod (2) links to each other with driving mechanism, can drive center knife bar (1) through cutter connecting rod (2) in the driving mechanism course of action and back and forth move up and down, and clutch links to each other with cutter connecting rod (2) and clutch can make in the above-mentioned driving mechanism course of action drive or not drive center knife bar (1) and moves back and forth.
2. the central cutter mechanism that opens bag flat seam machine automatically according to claim 1 is characterized in that this mechanism also comprises a guide, and above-mentioned center knife bar (1) is connected in the guide place and center knife bar (1) can be along the reciprocal translation of guide.
3. the central cutter mechanism that opens bag flat seam machine automatically according to claim 2; It is characterized in that; Described guide is the guide plate (3) that is strip; Have elongated pilot hole (3a) on the guide plate (3), said center knife bar (1) sidepiece is fixed with lead (1a), and lead (1a) part is embedded in above-mentioned pilot hole (3a) and locates.
4. according to claim 1 or the 2 or 3 described central cutter mechanisms that open bag flat seam machine automatically; It is characterized in that; Described driving mechanism comprises motor (4), fixed axis (5), power transmission shaft (6), connecting rod one (7), connecting rod two (8) and connecting rod three (9); Fixed axis (5) and motor (4) all are connected on the fuselage, and power transmission shaft (6) is fixed in the rotating shaft of motor (4), and an end of connecting rod two (8) is hinged on the fixed axis (5); One end of connecting rod one (7) and connecting rod three (9) is articulated in the both sides of the other end of connecting rod two (8) through same pin; The other end of connecting rod one (7) is hinged on power transmission shaft (6) edge, end, and the other end of connecting rod three (9) is hinged on the cutter connecting rod (2), and the length between said connecting rod two (8) its hinged places, two ends is identical with length between connecting rod three (9) its hinged places, two ends.
5. the central cutter mechanism that opens bag flat seam machine automatically according to claim 4; It is characterized in that; Described power transmission shaft (6) end has eccentric wheel (6a), and the other end of above-mentioned connecting rod one (7) is hinged on eccentric wheel (6a) and goes up and its hinged place and power transmission shaft (6) desaxe.
6. the central cutter mechanism that opens bag flat seam machine automatically according to claim 4; It is characterized in that; Described clutch comprises cylinder (10), communtation arm (11) and switching-over connecting rod (12), and the middle part of communtation arm (11) is articulated on the fuselage, and the piston rod of cylinder (10) and communtation arm (11) one ends are hinged; Communtation arm (11) other end is hinged with switching-over connecting rod (12) one ends, and switching-over connecting rod (12) other end and cutter connecting rod (2) are hinged.
7. the central cutter mechanism that opens bag flat seam machine automatically according to claim 6 is characterized in that, described switching-over connecting rod (12) and connecting rod three (9) are articulated in the both sides of cutter connecting rod (2) through same pin.
8. according to claim 1 or the 2 or 3 described central cutter mechanisms that open bag flat seam machine automatically, it is characterized in that described motor (4) is brushless electric machine (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203851977U CN202298133U (en) | 2011-10-11 | 2011-10-11 | Center cutter mechanism for automatic pocket sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203851977U CN202298133U (en) | 2011-10-11 | 2011-10-11 | Center cutter mechanism for automatic pocket sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202298133U true CN202298133U (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203851977U Withdrawn - After Issue CN202298133U (en) | 2011-10-11 | 2011-10-11 | Center cutter mechanism for automatic pocket sewing machine |
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| Country | Link |
|---|---|
| CN (1) | CN202298133U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102505371A (en) * | 2011-10-11 | 2012-06-20 | 中捷缝纫机股份有限公司 | Central cutter mechanism for automatic bag-opening parallel sewing machine |
| CN104762766A (en) * | 2015-04-27 | 2015-07-08 | 新通宇缝纫机股份有限公司 | Automatic shearing and separating device for cutter of sewing machine |
| CN106087261A (en) * | 2016-07-29 | 2016-11-09 | 天津市旭辉恒远塑料包装股份有限公司 | A kind of woven cloth automatic sealing |
| CN107558018A (en) * | 2017-09-22 | 2018-01-09 | 宁波舒普机电股份有限公司 | A kind of knife drive mechanism of sewing machine |
| CN112941741A (en) * | 2021-01-29 | 2021-06-11 | 苏州琼派瑞特电子科技有限公司 | Cutter mechanism for rubber band vehicle |
-
2011
- 2011-10-11 CN CN2011203851977U patent/CN202298133U/en not_active Withdrawn - After Issue
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102505371A (en) * | 2011-10-11 | 2012-06-20 | 中捷缝纫机股份有限公司 | Central cutter mechanism for automatic bag-opening parallel sewing machine |
| CN102505371B (en) * | 2011-10-11 | 2013-12-18 | 中捷缝纫机股份有限公司 | Central cutter mechanism for automatic bag-opening parallel sewing machine |
| CN104762766A (en) * | 2015-04-27 | 2015-07-08 | 新通宇缝纫机股份有限公司 | Automatic shearing and separating device for cutter of sewing machine |
| CN104762766B (en) * | 2015-04-27 | 2017-12-29 | 台州通宇服装机械科技有限公司 | A kind of automatic shearing separator of sewing machine cutting knife |
| CN106087261A (en) * | 2016-07-29 | 2016-11-09 | 天津市旭辉恒远塑料包装股份有限公司 | A kind of woven cloth automatic sealing |
| CN106087261B (en) * | 2016-07-29 | 2022-02-15 | 天津市旭辉恒远塑料包装股份有限公司 | Automatic sealing machine for woven cloth |
| CN107558018A (en) * | 2017-09-22 | 2018-01-09 | 宁波舒普机电股份有限公司 | A kind of knife drive mechanism of sewing machine |
| CN112941741A (en) * | 2021-01-29 | 2021-06-11 | 苏州琼派瑞特电子科技有限公司 | Cutter mechanism for rubber band vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120704 Effective date of abandoning: 20131218 |
|
| RGAV | Abandon patent right to avoid regrant |