CN109594209B - Sewing machine with tooth frame height adjusting device - Google Patents
Sewing machine with tooth frame height adjusting device Download PDFInfo
- Publication number
- CN109594209B CN109594209B CN201811574402.7A CN201811574402A CN109594209B CN 109594209 B CN109594209 B CN 109594209B CN 201811574402 A CN201811574402 A CN 201811574402A CN 109594209 B CN109594209 B CN 109594209B
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- China
- Prior art keywords
- sewing machine
- frame mechanism
- tooth
- lifting
- tooth frame
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B27/00—Work-feeding means
- D05B27/24—Feed-dog lifting and lowering devices
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B69/00—Driving-gear; Control devices
- D05B69/28—Applications of servo devices for tool-positioning purposes
Abstract
The invention relates to a sewing machine with a tooth frame height adjusting device, which is positioned between a support table and a sewing machine main body and comprises a base, a lifting mechanism, a tooth frame mechanism and a lifting frame mechanism, wherein the base is structurally connected with the sewing machine main body into a whole, the tooth frame mechanism is fixedly connected with the lifting frame mechanism, the tooth frame mechanism is positioned below the lifting frame mechanism, the upper surface of the lifting frame mechanism is basically flush with the upper surface of the support table, and a controller controls the lifting mechanism to drive the lifting frame mechanism and the tooth frame mechanism to lift and position. The beneficial effects created by the invention are as follows: the thickness measuring sensor feeds back the cloth thickness to the controller, the controller controls the lifting mechanism to drive the lifting frame mechanism and the tooth frame mechanism to lift and position, therefore, the distance between the cloth feeding teeth and the upper presser foot is finely adjusted, the process realizes automatic adjustment of the height of the cloth feeding teeth, manual operation is not needed, and labor cost is saved.
Description
Technical Field
The invention belongs to the technical field of sewing equipment, and particularly relates to a sewing machine with a tooth frame height adjusting device.
Background
In the process of using the sewing machine, the uniformity of the cloth feeding teeth is an important link, and the height of the cloth feeding teeth is mainly adjusted according to the thickness of the cloth, so that sewing can be smoothly performed only under the condition that the height of the cloth feeding teeth is proper. In the prior art, before an industrial sewing machine is used, a position screw of a feed dog is firstly released, the height of the feed dog is determined by the cloth thickness within the standard specified range of the machine, at the moment, the position of the feed dog is relatively matched with the positions of other parts, the height of the feed dog is relatively proper, and the position screw is fixed and tightened. If the position of the feed dog is lower, the distance between the upper presser foot and the feed dog is larger, and the cloth can move back and forth in the using process; if the position of the feed dog is higher, the distance between the upper presser foot and the feed dog is smaller, and the cloth can be wrinkled or stopped. That is, the adjustment of the feed dog in the prior art mainly depends on manual adjustment, which requires a high experience of a technician, and the manual adjustment process must be performed under a condition that the sewing machine stops working, which tends to affect the sewing efficiency.
In addition, the existing sewing and clothing-making assembly line still adopts the manual linear cloth feeding and curved cloth feeding operation, so that the labor cost is high, and improvement is urgently needed.
Disclosure of Invention
The invention provides a sewing machine with a tooth rack height adjusting device.
In order to solve the technical problems, the invention adopts the technical scheme that:
the sewing machine with the tooth frame height adjusting device is positioned between the support table and the sewing machine main body and comprises a controller, a thickness measuring sensor, a base, a lifting mechanism, a tooth frame mechanism and a lifting frame mechanism;
the base is connected with the sewing machine main body;
the tooth frame mechanism is fixedly connected with the lifting frame mechanism, the tooth frame mechanism is positioned below the lifting frame mechanism (4), and the upper surface of the lifting frame mechanism is basically flush with the upper surface of the supporting table;
the power source of the lifting mechanism drives the lifting frame mechanism and the tooth frame mechanism to lift and position;
the controller is electrically connected with the thickness measuring sensor;
the controller is electrically connected with the power source.
Further, the tooth frame mechanism is located in the middle of the base and comprises a cloth feeding tooth driven by a crank connecting rod to move, and the tooth frame mechanism is located in a tooth frame shell.
Further, crane mechanism includes support body, windowing, fixing bolt and compression spring, the support body is n type frame, and the horizontal limit middle part of this n type frame is equipped with a plurality of windowing, the feed dog stretches out in this a plurality of windowing, the perpendicular limit bottom of support body is equipped with perpendicular inside kink, be equipped with a plurality of jacks on the kink, fixing bolt pass behind compression spring and the jack with the screw hole thread fixed connection of base, under compression spring's pressure effect, the kink lower surface sets up with base upper surface next-door neighbour.
Further, the crane mechanism further comprises guide plates, the two guide plates are structurally connected with the transverse edge of the rack body into a whole and are arranged in parallel with the vertical edge of the rack body, the two guide plates are respectively positioned on two sides of the tooth rack mechanism, guide grooves are correspondingly arranged on the base, and the guide plates are positioned in the guide grooves and lift in the guide grooves.
Further, the tooth frame shell is positioned below the frame body and fixedly connected with the frame body.
Furthermore, the lifting mechanism comprises two connecting rods driven by a power source to move back and forth, a wedge-shaped block is arranged at the free end of each connecting rod, the part of the bottom surface of the n-shaped frame, which is close to the servo cylinder, is an inclined surface, and a wedge-shaped groove is formed between the inclined surface and the upper surface of the base.
Furthermore, the base is also provided with an integrally connected cover body, and the cover body and the frame body together cover the base completely.
Furthermore, all be equipped with the direction steel wire on two relative sides in the cover body, each a balancing weight has all been set firmly on the connecting rod, be equipped with the through-hole that supplies this direction steel wire to pass on the balancing weight, this balancing weight along the direction of direction steel wire with the connecting rod seesaw together.
Furthermore, the supporting table and the sewing machine main body are fixedly inserted.
Further, the power source is a servo cylinder, the servo cylinder is controlled by a controller, and the controller is a PLC.
The beneficial effects created by the invention are as follows:
(1) the thickness measuring sensor feeds back the cloth thickness to the controller, and the controller controls the lifting mechanism to drive the lifting frame mechanism and the tooth frame mechanism to lift and position, so that the distance between the feed dog and the upper presser foot is finely adjusted, the process realizes the automatic adjustment of the height of the feed dog, manual operation is not needed, and the labor cost is saved;
(2) the two sides of the sewing machine head are respectively provided with a manipulator to accurately control the cloth feeding path before and after sewing, and the manipulators are controlled by a controller to realize the operation of linear cloth feeding and curved cloth feeding;
(3) the sewing machine has the advantages that the independence of each unit and each mechanism is strong, and the assembly and the subsequent maintenance are convenient.
Drawings
FIG. 1 is a schematic view showing the overall structure of a sewing machine with a thread guide height adjusting device according to an embodiment of the present invention;
FIG. 2 is a schematic perspective view of a device for adjusting the height of a dental articulator according to an embodiment of the present invention;
FIG. 3 is a perspective view of a dental articulator height adjustment device (without a housing) in an embodiment of the present invention;
FIG. 4 is a schematic side view of the structure of FIG. 3;
fig. 5 is a schematic front view of fig. 3.
In the figure: a-supporting table, B-sewing machine body, C-adjusting device, 1-base, 11-guide groove, 12-cover body, 121-guide steel wire, 2-lifting mechanism, 21-servo cylinder, 22-connecting rod, 23-wedge block, 24-wedge groove, 25-counterweight block, 3-tooth frame mechanism, 31-feed dog, 32-tooth frame shell, 4-lifting frame mechanism, 41-frame body, 411-bending part, 42-guide plate, 43-windowing, 44-fixing bolt, 45-compression spring, 5-upper presser foot, 6-mechanical arm and 7-sewing machine head.
Detailed Description
It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which are merely for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.
In the description of the invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be construed broadly, e.g. as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.
The invention will be described in detail with reference to the following embodiments with reference to the attached drawings.
In some embodiments, the sewing machine with the thread frame height adjusting device is characterized in that the adjusting device C is located between a support table A and a sewing machine main body B and comprises a base 1, an elevating mechanism 2, a thread frame mechanism 3 and a lifting frame mechanism 4, the base 1 and the sewing machine main body B are structurally connected into a whole, the thread frame mechanism 3 is fixedly connected with the lifting frame mechanism 4, the elevating mechanism 2 drives the lifting frame mechanism 4 and the thread frame mechanism 3 to ascend and descend for positioning, and the support table A and the sewing machine main body B are fixedly inserted and connected.
In some embodiments, the dental articulator mechanism 3 is located in the middle of the base 1, the dental articulator mechanism 3 includes a cloth feeding tooth 31 driven by a crank link, the structure of the dental articulator mechanism is disclosed in patent CN201721868050.7, and details are not repeated, in this embodiment, a dental articulator housing 32 is disposed outside the dental articulator mechanism 3, and the dental articulator mechanism 3 is located inside the dental articulator housing 32.
In some embodiments, the lifting frame mechanism 4 includes a frame body 41, guide plates 42, a window 43, a fixing bolt 44 and a compression spring 45, the frame body 41 is an n-type frame, the middle of the transverse edge of the n-type frame is provided with a plurality of windows 43, the feed dog 31 extends from the plurality of windows 43, the two guide plates 42 are connected with the transverse edge of the frame body 41 in an integrated structure and are arranged in parallel with the vertical edge of the frame body 41, the two guide plates 42 are respectively located at two sides of the dental frame mechanism 3, the base 1 is correspondingly provided with a guide groove 11, and the guide plates 42 are located in the guide grooves 11 and lift in the guide grooves 11; the bottom of the vertical side of the frame body 41 is provided with a vertical inward bending part 411, the bending part 411 is provided with a plurality of insertion holes, the fixing bolt 44 passes through the compression spring 45 and the insertion holes and then is fixedly connected with the thread of the threaded hole of the base 1, and under the pressure action of the compression spring 45, the lower surface of the bending part 411 is closely adjacent to the upper surface of the base 1.
The dental articulator shell 32 is located below the articulator body 41 and is fixedly connected with the articulator body 41 through screws.
In some embodiments, the lifting mechanism 2 includes two links 22 driven by a servo cylinder 21 to move back and forth, a wedge block 23 is disposed at a free end of each link 22, and a portion of the bottom surface of the n-shaped frame close to the servo cylinder 21 is an inclined surface, and a wedge groove 24 is formed between the inclined surface and the upper surface of the base.
In the process that the wedge block 23 is inserted into the wedge groove 24, the frame body 41 is lifted, the bending part 411 and the tooth frame mechanism 3 are lifted together, and then the compression spring 45 is compressed;
in the process that the wedge block 23 moves out of the wedge groove 24, the compression spring 45 releases partial elastic potential energy to enable the bent part to descend, and the rack body and the tooth rack mechanism 3 descend together.
In some embodiments, the base 1 is further provided with an integrally connected cover 12, the cover 12 and the frame 41 together cover the base 1 completely, two opposite sides in the cover 12 are provided with guide steel wires 121, each of the connecting rods 22 is fixedly provided with a weight 25, the weight 25 is provided with a through hole for the guide steel wire 121 to pass through, and the weight 25 moves back and forth along the direction of the guide steel wire 121 together with the connecting rod 22.
Because of the back-and-forth movement of connecting rod need overcome compression spring's elastic potential energy, for avoiding the vertical bending deformation of connecting rod, set up the balancing weight at the middle part of connecting rod, and this balancing weight receives the route restriction of direction steel wire, can avoid the horizontal bending deformation of connecting rod.
The sewing machine has the advantages that the independence of each unit and each mechanism is strong, and the assembly and the subsequent maintenance are convenient.
In some embodiments, the sewing machine body with the tooth rack height adjusting device is used as follows:
before the cloth enters the support table, the thickness of the cloth is measured by a thickness measuring sensor (model: ZM100), the data of the thickness measuring sensor is fed back to a controller, the controller is a PLC, the controller controls a servo cylinder to move forwards or backwards, then the heights of the lifting frame mechanism and the tooth frame mechanism are finely adjusted, and therefore the height of the tooth frame mechanism relative to the upper presser foot 5 is adjusted; specifically, when the cloth is thick, the servo cylinder drives the connecting rod to move backwards, the wedge block is pulled out from the wedge-shaped groove, the frame body and the tooth frame shell move downwards, and the distance between the upper presser foot 5 and the cloth feeding tooth is increased; when the cloth is thin, the servo cylinder drives the connecting rod to move forwards, the wedge block is inserted into the wedge-shaped groove, the frame body and the tooth frame shell move upwards, and the distance between the upper presser foot and the cloth feeding tooth becomes small.
The thickness measuring sensor can be fixed on the side surface of the supporting table through a C-shaped frame.
The controller may be located on a lower surface of the support table.
In some embodiments, the controller controls the mechanical arm 6 to realize linear and curve cloth feeding operations, and particularly, a mechanical arm 6 is required to be arranged on each of two sides of the sewing machine head 7 so as to accurately control cloth feeding paths before and after sewing; the controller is a PLC.
The above description is for the purpose of describing particular embodiments of the present invention, but the present invention is not limited to the particular embodiments described herein. All equivalent changes and modifications made within the scope of the invention shall fall within the scope of the patent coverage of the invention.
Claims (8)
1. The sewing machine with the tooth frame height adjusting device is characterized in that the adjusting device is positioned between the support table and the sewing machine main body and comprises a controller, a thickness measuring sensor, a base (1), a lifting mechanism (2), a tooth frame mechanism (3) and a lifting frame mechanism (4);
the base (1) is connected with the sewing machine body;
the tooth frame mechanism (3) is fixedly connected with the lifting frame mechanism (4), the tooth frame mechanism (3) is positioned below the lifting frame mechanism (4), and the upper surface of the lifting frame mechanism (4) is basically flush with the upper surface of the supporting table;
the power source of the lifting mechanism (2) drives the lifting frame mechanism (4) and the tooth frame mechanism (3) to lift and position;
the controller is electrically connected with the thickness measuring sensor;
the controller is electrically connected with the power source;
the tooth frame mechanism (3) is positioned in the middle of the base (1), the tooth frame mechanism (3) comprises a cloth feeding tooth (31) driven by a crank connecting rod to move, and the tooth frame mechanism (3) is positioned in a tooth frame shell (32);
elevating rack mechanism (4) are including support body (41), windowing (43), fixing bolt (44) and compression spring (45), support body (41) are n type frame, and the horizontal limit middle part of this n type frame is equipped with a plurality of windowing (43), send cloth tooth (31) to stretch out in by these a plurality of windowing (43), the perpendicular limit bottom of support body (41) is equipped with perpendicular inside kink (411), be equipped with a plurality of jacks on kink (411), fixing bolt (44) pass behind compression spring (45) and the jack with the screw hole screw thread fixed connection of base (1), under compression spring's (45) pressure effect, kink (411) lower surface and base (1) upper surface are close to the setting.
2. The sewing machine with the tooth frame height adjusting device according to claim 1, characterized in that the lifting frame mechanism (4) further comprises two guide plates (42), the two guide plates (42) are structurally connected with the transverse edge of the frame body (41) as a whole and are arranged in parallel with the vertical edge of the frame body (41), the two guide plates (42) are respectively positioned at two sides of the tooth frame mechanism (3), the base (1) is correspondingly provided with a guide groove (11), and the guide plates (42) are positioned in the guide grooves (11) and lift in the guide grooves (11).
3. The sewing machine with a thread stand height adjusting device according to claim 1, wherein the thread stand housing (32) is located below the stand body (41) and is fixedly connected to the stand body (41).
4. The sewing machine with a tooth frame height adjusting device according to claim 1, characterized in that the lifting mechanism (2) comprises two connecting rods (22) driven by a power source to move back and forth, a wedge block (23) is arranged at the free end of each connecting rod (22), the power source is a servo cylinder, the part of the bottom surface of the n-shaped frame close to the servo cylinder (21) is an inclined surface, and a wedge-shaped groove (24) is formed between the inclined surface and the upper surface of the base.
5. The sewing machine with the tooth frame height adjusting device according to claim 1, characterized in that the base (1) is further provided with an integrally connected cover (12), and the cover (12) and the frame body (41) together cover the base (1) completely.
6. The sewing machine with a tooth frame height adjusting device according to claim 5, characterized in that the cover (12) is provided with guide wires (121) on two opposite sides, each connecting rod (22) is fixedly provided with a weight block (25), the weight block (25) is provided with a through hole for the guide wire (121) to pass through, and the weight block (25) moves back and forth along the direction of the guide wires (121) together with the connecting rod (22).
7. The sewing machine with a thread guide height adjusting device as claimed in claim 1, wherein the support table is fixed to the sewing machine body by insertion.
8. The sewing machine with a thread stand height adjusting device according to claim 4, wherein the servo cylinder is controlled by a controller, and the controller is a PLC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811574402.7A CN109594209B (en) | 2018-12-21 | 2018-12-21 | Sewing machine with tooth frame height adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811574402.7A CN109594209B (en) | 2018-12-21 | 2018-12-21 | Sewing machine with tooth frame height adjusting device |
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| Publication Number | Publication Date |
|---|---|
| CN109594209A CN109594209A (en) | 2019-04-09 |
| CN109594209B true CN109594209B (en) | 2020-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811574402.7A Active CN109594209B (en) | 2018-12-21 | 2018-12-21 | Sewing machine with tooth frame height adjusting device |
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| CN (1) | CN109594209B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112575455B (en) * | 2020-12-02 | 2021-11-30 | 际华三五零六纺织服装有限公司 | Differential adjustable feed dog device of lockstitch sewing machine |
| CN114197118B (en) * | 2021-11-19 | 2023-02-28 | 黄山世龙寝具股份有限公司 | Production facility of integral type bedding cloth can shirk |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH119867A (en) * | 1997-06-26 | 1999-01-19 | Brother Ind Ltd | Feed dog height position adjustor for sewing machine |
| CN1270246A (en) * | 1999-02-08 | 2000-10-18 | 重机株式会社 | Mechanism for regulating height of pay-off teeth |
| US7246564B2 (en) * | 2005-08-08 | 2007-07-24 | Shing Ray Sewing Machine Co., Ltd. | Differential feeding mechanism of the front and rear translation gears of a transverse shuttle-type sewing machine |
| CN204174392U (en) * | 2014-10-13 | 2015-02-25 | 天津华唐缝纫机制造有限公司 | With the industrial sewing machine of feed dog height governor motion |
| CN104878522A (en) * | 2015-05-21 | 2015-09-02 | 湖南省兴德缝制自动化有限公司 | Cloth feed dog frame for sewing machine |
| CN106637706A (en) * | 2015-10-30 | 2017-05-10 | 蛇目缝衣机工业株式会社 | Feed dog adjustment device and sewing machine including same |
| CN107268191A (en) * | 2016-04-05 | 2017-10-20 | Juki株式会社 | Sewing machine |
| CN108998899A (en) * | 2018-08-16 | 2018-12-14 | 杰克缝纫机股份有限公司 | A kind of cloth feeding mechanism of automatic improvement take-up |
-
2018
- 2018-12-21 CN CN201811574402.7A patent/CN109594209B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH119867A (en) * | 1997-06-26 | 1999-01-19 | Brother Ind Ltd | Feed dog height position adjustor for sewing machine |
| CN1270246A (en) * | 1999-02-08 | 2000-10-18 | 重机株式会社 | Mechanism for regulating height of pay-off teeth |
| US7246564B2 (en) * | 2005-08-08 | 2007-07-24 | Shing Ray Sewing Machine Co., Ltd. | Differential feeding mechanism of the front and rear translation gears of a transverse shuttle-type sewing machine |
| CN204174392U (en) * | 2014-10-13 | 2015-02-25 | 天津华唐缝纫机制造有限公司 | With the industrial sewing machine of feed dog height governor motion |
| CN104878522A (en) * | 2015-05-21 | 2015-09-02 | 湖南省兴德缝制自动化有限公司 | Cloth feed dog frame for sewing machine |
| CN106637706A (en) * | 2015-10-30 | 2017-05-10 | 蛇目缝衣机工业株式会社 | Feed dog adjustment device and sewing machine including same |
| CN107268191A (en) * | 2016-04-05 | 2017-10-20 | Juki株式会社 | Sewing machine |
| CN108998899A (en) * | 2018-08-16 | 2018-12-14 | 杰克缝纫机股份有限公司 | A kind of cloth feeding mechanism of automatic improvement take-up |
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| CN109594209A (en) | 2019-04-09 |
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