CN112501809A - Presser foot mechanism with facial line clamping function - Google Patents
Presser foot mechanism with facial line clamping function Download PDFInfo
- Publication number
- CN112501809A CN112501809A CN202011559117.5A CN202011559117A CN112501809A CN 112501809 A CN112501809 A CN 112501809A CN 202011559117 A CN202011559117 A CN 202011559117A CN 112501809 A CN112501809 A CN 112501809A
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- CN
- China
- Prior art keywords
- presser foot
- thread
- elastic sheet
- hooking plate
- needle bar
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05C—EMBROIDERING; TUFTING
- D05C9/00—Appliances for holding or feeding the base fabric in embroidering machines
- D05C9/20—Movement of the base fabric controlled by the presser feet; Driving arrangements therefor
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05C—EMBROIDERING; TUFTING
- D05C11/00—Devices for guiding, feeding, handling, or treating the threads in embroidering machines; Machine needles; Operating or control mechanisms therefor
- D05C11/08—Thread-tensioning arrangements
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention discloses a presser foot mechanism with a needle thread clamp, which comprises a presser foot, wherein the presser foot is arranged on a needle bar frame, the needle bar frame is arranged on a machine head, the machine head is also provided with a thread hooking plate, the lower end of the thread hooking plate is arranged in a hook shape, the thread hooking plate is connected with a driving mechanism for driving the thread hooking plate to move back and forth and enabling the lower end of the thread hooking plate to realize thread hooking operation, a presser foot elastic sheet and a thread clamping pin are arranged on the presser foot, the thread clamping pin is fixed on the presser foot, one end of the presser foot elastic sheet is in hinged fit with the presser foot, the other end of the presser foot elastic sheet is connected with an elastic piece for abutting against the outer circumferential surface of the thread clamping pin, and when the thread hooking plate moves back and. By adopting the structure, the upper thread clamping part of the upper thread clamping device is simple in structure, the upper thread is clamped without additionally increasing a driving mechanism, and meanwhile, the upper thread clamping structure is integrated on the presser foot, so that the whole machine head structure is simplified, the occupied space is small, and the upper thread clamping device is convenient to install.
Description
Technical Field
The invention relates to the technical field of embroidery machines, in particular to a presser foot mechanism with an upper thread clamp.
Background
At present, a presser foot on an embroidery machine is a component for finishing cloth pressing action in the embroidery process of the embroidery machine, a thread hooking board on the embroidery machine is a component matched with a thread cutting device, namely when thread cutting is needed, the embroidery machine stops working, the thread hooking board moves back and forth under the action of a corresponding driving mechanism, so that an upper thread needing to be cut on cloth is hooked, and thread cutting operation is further realized under the action of the thread cutting device. In this process, still can set up the facial thread clamping device on the embroidery machine aircraft nose and carry out the centre gripping to the facial thread that colludes to in carrying out the thread cutting operation, but the most structure complicacy of current facial thread clamping device, and need corresponding power unit to drive during the centre gripping, as relevant document application number is: CN201620415947.3 discloses an upper thread holding device and an embroidery machine head, the disclosed upper thread holding device includes a fixing frame and a row of moving rods movably passing through the fixing frame, the moving rods are fixed with moving blocks, concave-convex guiding structures and the like are arranged between adjacent moving blocks, the concave-convex guiding structures and the like are mutually arranged between adjacent moving blocks, the structure is quite complex, and electromagnetic components such as electromagnets and the like are needed to cooperate to realize the holding of the upper thread, so that the production cost is increased, and the operation is complicated. Meanwhile, the existing upper thread clamping device is arranged in the machine head and interferes with the existing punching mechanism on the machine head, so that the upper thread clamping device can only be externally arranged on the machine head, and the occupied space of the machine head is increased. In addition, the existing presser foot also has the defects of insufficient structural strength, easy stress bending, insufficient reliability in installation and the like.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a presser foot mechanism with an upper thread clamping structure, the upper thread clamping structure part of the presser foot mechanism is simple in structure, the upper thread clamping structure is not required to be additionally provided with a driving mechanism to realize the clamping of the upper thread, and meanwhile, the upper thread clamping structure is integrated on the presser foot, so that the whole machine head structure is simplified, the occupied space is small, and the presser foot mechanism is convenient to install.
In order to achieve the purpose, the invention provides a presser foot mechanism with a needle thread clamping function, which comprises a presser foot, wherein the presser foot is arranged on a needle bar frame, the needle bar frame is arranged on a machine head, a thread hooking plate is also arranged on the machine head, the lower end of the thread hooking plate is arranged in a hook shape, a driving mechanism for driving the thread hooking plate to move back and forth and enabling the lower end of the thread hooking plate to realize thread hooking operation is connected onto the thread hooking plate, a presser foot elastic sheet and a thread clamping pin are arranged on the presser foot, the thread clamping pin is fixed on the presser foot, one end of the presser foot elastic sheet is in hinged fit with the presser foot, an elastic piece for enabling the other end of the presser foot elastic sheet to abut against the outer circumferential surface of the thread clamping pin is connected onto the presser foot elastic sheet, and when the.
The invention has the beneficial effects that: by adopting the structure, the upper thread clamping structure is composed of the thread clamping pin, the presser foot elastic sheet and the elastic piece, and the presser foot elastic sheet is pressed on the thread clamping pin under the action of the elastic piece. When hooking the line, the line hooking plate stretches out under the drive of the driving mechanism, and passes through the outer circumferential surface of the presser foot elastic piece and the line clamping pin, the upper line is hooked, the back stroke is performed, the line hooking plate retracts back from the outer circumferential surface of the presser foot elastic piece and the line clamping pin, the hooked upper line is clamped between the outer circumferential surface of the presser foot elastic piece and the line clamping pin, namely, the line hooking operation of the line hooking plate is performed, meanwhile, the clamping of the upper line is realized, the operation is convenient, the structure is simple, the clamping of the upper line is realized without additionally increasing the driving mechanism, the upper line clamping structure is integrated on the presser foot, the whole machine head structure becomes simple, the occupied space is small, the installation is convenient, and a larger installation space is provided for other devices additionally arranged on the machine head.
The invention can be further arranged in a way that a vertically arranged presser foot shaft is fixed on the needle bar frame, a fixed sleeve is fixedly sleeved at the lower end part of the presser foot shaft, the upper end of the presser foot is correspondingly arranged to be covered and fixed on the U-shaped part on the peripheral surface of the fixed sleeve, two sides of the opening of the U-shaped part are provided with lugs projecting backwards, an articulated shaft is arranged between the lugs at the two sides, and a presser foot elastic sheet is in articulated fit with the presser foot through the articulated shaft. By adopting the structure, the fixing sleeve is fixedly sleeved at the lower end part of the presser foot shaft, and then the upper end of the presser foot is correspondingly arranged to be the U-shaped part which is fixedly wrapped on the peripheral surface of the fixing sleeve, so that compared with the prior art, the presser foot is directly arranged on the presser foot shaft, the structure is firmer and more reliable, meanwhile, the articulated shaft can also be arranged on lugs at two sides of the opening of the U-shaped part, and the whole structure is simpler and more compact.
The invention can be further arranged in a way that the upper end part of the presser foot elastic piece is bent into a loop and is sleeved on the hinged shaft, two sides of the opening of the U-shaped part correspondingly form axial clamping for the upper end part of the presser foot elastic piece, the elastic piece is a torsion spring, the torsion spring is sleeved on the hinged shaft, the middle part of the upper end part of the presser foot elastic piece is correspondingly provided with a notch groove for accommodating the torsion spring, and two ends of the torsion spring extend outwards and respectively abut against the presser foot elastic piece and the fixed sleeve. The arrangement is convenient for installation, the hinged swing of the presser foot elastic sheet is stable and reliable, and the displacement cannot occur, so that the reliability of the upper thread clamping is effectively ensured.
The invention can be further arranged in such a way that the lower end of the presser foot elastic sheet is provided with an inclined section which is arranged in an up-down inclined way, the inclined section is pressed on the outer circumferential surface of the thread clamping pin in a tangent way, the upper side and the lower side of the inclined section are bent and tilted, the thread hooking plate is arranged in an up-down inclined way, and the lower end of the thread hooking plate passes through the inclined section and the outer circumferential surface of the thread clamping pin when the thread hooking plate moves back and forth. The arrangement is more beneficial to the insertion of the thread hooking plate between the presser foot elastic sheet and the thread clamping pin and the passing of the thread hooking plate between the presser foot elastic sheet and the thread clamping pin. Simultaneously, such structure setting, the facial suture that is colluded when passing through facial suture clamping structure frictional force each other is also less, and the facial suture is difficult for splitting to more help colluding the line board and pull the panel from facial suture clamping structure and cross.
The invention can be further arranged that the lower end of the presser foot is arranged into an L shape and is connected with one side of the U-shaped part into a whole. Such right angle is buckled, and the structural strength of presser foot is better, is difficult to the atress crooked, can effectively avoid leading to the presser foot compress precision to reduce the defect because of the presser foot atress is crooked.
The invention can be further provided with a needle rod which is arranged on the needle rod frame in a lifting and moving way, the lower end part of the needle rod is provided with an embroidery needle, and one transverse side of the lower end of the presser foot is provided with a presser foot through hole for the embroidery needle to pass through. This further facilitates the embroidery by the embroidery needle.
The invention can be further provided that a positioning block is fixedly sleeved on the presser foot shaft, and a C-shaped positioning part sleeved on the needle rod is correspondingly formed at one side of the positioning block. The positioning part can play a role in positioning and guiding the lifting movement of the needle bar, and meanwhile, the presser foot shaft and the needle bar are effectively combined together, so that the stability of the structure is improved.
The invention can be further provided that the U-shaped part, the fixing sleeve and the presser foot shaft are riveted and fixed together through the pin shaft. Therefore, the installation is more convenient, and the installation is more firm and reliable.
Drawings
FIG. 1 is a block diagram of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is a partial block diagram of the present invention;
FIG. 4 is a view showing the construction of the hook plate portion of the present invention;
FIG. 5 is a view showing a state where the thread hooking plate is not inserted into the upper thread holding structure;
FIG. 6 is a state diagram when the thread hooking plate passes through the upper thread holding structure;
FIG. 7 is a view showing a structure of a presser foot part of the present invention;
FIG. 8 is a view of the structure of the presser foot of the present invention;
fig. 9 is a structural view of the presser foot elastic piece in the invention.
Detailed Description
As shown in fig. 1-9, a presser foot mechanism with upper thread clamping is provided, which comprises a presser foot 2, wherein the presser foot 2 is arranged on a needle bar frame 7, the needle bar frame 7 is arranged on a machine head 1, a thread hooking plate 4 is also arranged on the machine head 1, the lower end 41 of the thread hooking plate 4 is arranged in a hook shape, a driving mechanism 5 for driving the thread hooking plate 4 to move back and forth and enabling the lower end to realize thread hooking operation is connected on the thread hooking plate 4, and the driving mechanism 5 can be composed of a motor, a cam and other transmission components. The presser foot 2 is provided with a presser foot elastic sheet 21 and a thread clamping pin 22, the thread clamping pin 22 is fixed on the presser foot 2, one end of the presser foot elastic sheet 21 is in hinged fit with the presser foot 2, the presser foot elastic sheet 21 is connected with an elastic piece which enables the other end of the presser foot elastic sheet to abut against the outer circumferential surface of the thread clamping pin 22, and when the thread hooking plate 4 moves back and forth, the lower end 41 of the thread hooking plate 4 correspondingly penetrates between the other end of the presser foot elastic sheet 21 and the outer circumferential surface of the thread clamping pin 22.
By adopting the structure, the upper thread clamping structure in the invention is composed of the thread clamping pin 22, the presser foot elastic sheet 21 and the elastic piece, and the presser foot elastic sheet 21 is pressed against the thread clamping pin 22 under the action of the elastic piece. When hooking the thread, the thread hooking plate 4 extends out under the driving of the driving mechanism 5, and passes through the outer circumferential surface of the presser foot elastic piece 21 and the thread clamping pin 22, so that the upper thread is hooked, and then returns, the thread hooking plate 4 retracts back from the outer circumferential surface of the presser foot elastic piece 21 and the thread clamping pin 22, the hooked upper thread is clamped between the outer circumferential surface of the presser foot elastic piece 21 and the outer circumferential surface of the thread clamping pin 22, namely, the thread hooking operation of the thread hooking plate 4 is carried out, and the clamping of the upper thread is realized.
The invention can be further arranged that a vertically arranged presser foot shaft 23 is fixed on the needle bar frame 7, a fixed sleeve 24 is fixedly sleeved on the lower end part of the presser foot shaft 23, the upper end of the presser foot 2 is correspondingly arranged to be a U-shaped part 25 which is fixedly covered on the peripheral surface of the fixed sleeve 24, two sides of the opening of the U-shaped part 25 are provided with lugs 26 which protrude backwards, a hinge shaft 6 is arranged between the lugs 26 at the two sides, and the presser foot elastic sheet 21 is in hinged fit with the presser foot 2 through the hinge shaft 6. By adopting the structure, the fixing sleeve 24 is fixedly sleeved at the lower end part of the presser foot shaft 23, and then the upper end of the presser foot 2 is correspondingly arranged to be covered and fixed on the U-shaped part 25 on the peripheral surface of the fixing sleeve 24, so that compared with the prior art that the presser foot 2 is directly arranged on the presser foot shaft 23, the structure is firmer and more reliable, meanwhile, the hinge shaft 6 can also be arranged on the lugs 26 at two sides of the opening of the U-shaped part 25, and the whole structure is simpler.
The invention can be further arranged in such a way that the upper end part 211 of the presser foot elastic sheet 21 is bent into a loop and is sleeved on the hinged shaft 6, two sides of the opening of the U-shaped part 25 correspondingly form axial clamping for the upper end part 211 of the presser foot elastic sheet, the elastic part is a torsion spring 27, the torsion spring 27 is sleeved on the hinged shaft 6, the middle of the upper end part 211 of the presser foot elastic sheet 21 is correspondingly provided with a notch groove 212 for accommodating the torsion spring 27, and two ends of the torsion spring 27 extend outwards and respectively abut against the presser foot elastic sheet 21 and the fixed sleeve 24. The arrangement is convenient for installation, the hinged swing of the presser foot elastic sheet 21 is stable and reliable, and displacement cannot occur, so that the reliability of facial line clamping is effectively ensured.
The invention can be further arranged that the lower end of the presser foot elastic sheet 21 is provided with a section of inclined section 213 which is arranged in an up-down inclined manner, the inclined section 213 is pressed against the outer circumferential surface of the thread clamping pin 22 in a tangent manner, the upper side 214 and the lower side 214 of the inclined section 213 are bent and tilted, the thread hooking plate 4 is arranged in an up-down inclined manner, and the lower end 41 passes through between the inclined section 213 and the outer circumferential surface of the thread clamping pin 22 when moving back and forth. This arrangement further facilitates the insertion of the hook plate 4 between the presser foot elastic piece 21 and the thread clamping pin 22 and the passing through between the presser foot elastic piece 21 and the thread clamping pin 22. Simultaneously, such structure setting, the facial suture that is colluded when passing through facial suture clamping structure frictional force each other is also less, and the facial suture is difficult for splitting to more help colluding the line board and pull the panel from facial suture clamping structure and cross.
The invention can be further arranged that the lower end 28 of the presser foot 2 is arranged in an L shape and is connected with one side of the U-shaped part 25 into a whole. Such right angle is buckled, and presser foot 2's structural strength is better, is difficult to the atress crooked, can effectively avoid leading to the defect that presser foot 2 compress precision reduces because of presser foot 2 atress is crooked.
The invention can be further provided with a needle bar 31 which is arranged on the needle bar frame 7 in a way of ascending and descending, the lower end part of the needle bar 31 is provided with the embroidery needle 3, and one transverse side 29 of the lower end 28 of the presser foot is provided with a presser foot through hole 291 through which the embroidery needle 3 passes. This further contributes to the embroidery by the embroidery needle 3.
The invention can be further provided that a positioning block 32 is fixedly sleeved on the presser foot shaft 23, and a C-shaped positioning part 33 hooped on the needle rod 31 is correspondingly formed on one side of the positioning block 32. The positioning part 33 can position and guide the ascending and descending movement of the needle bar 31, and effectively combine the presser foot shaft 23 and the needle bar 31, thereby increasing the structural stability.
The invention can be further provided that the U-shaped part 25, the fixing sleeve 24 and the presser foot shaft 23 are riveted together by the pin shaft 30. Therefore, the installation is more convenient, and the installation is more firm and reliable.
Claims (8)
1. The utility model provides a take presser foot mechanism of facial line centre gripping, includes the presser foot, and the presser foot setting is on the needle bar frame, and the needle bar frame is installed overhead, still is provided with the line board of colluding on the aircraft nose, and the lower extreme of colluding the line board sets to colluding the form, colludes and is connected with the actuating mechanism who is used for driving its reciprocating motion and makes its lower extreme realize colluding the line operation on the line board, its characterized in that: the pressure foot is provided with a pressure foot elastic sheet and a thread clamping pin, the thread clamping pin is fixed on the pressure foot, one end of the pressure foot elastic sheet is in hinged fit with the pressure foot, the pressure foot elastic sheet is connected with an elastic piece which enables the other end of the pressure foot elastic sheet to abut against the outer circumferential surface of the thread clamping pin, and when the thread hooking plate moves back and forth, the lower end of the thread hooking plate correspondingly penetrates through the space between the other end of the pressure foot elastic sheet and the outer circumferential surface of the thread clamping.
2. The presser foot mechanism with upper thread clamp according to claim 1, wherein: the needle bar frame is fixed with a vertically arranged presser foot shaft, the lower end part of the presser foot shaft is fixedly sleeved with a fixed sleeve, the upper end of the presser foot is correspondingly arranged to be a U-shaped part fixed on the outer peripheral surface of the fixed sleeve in a covering mode, two sides of an opening of the U-shaped part are provided with lugs protruding backwards, an articulated shaft is arranged between the lugs on the two sides, and the presser foot elastic sheet is in articulated fit with the presser foot through the articulated shaft.
3. The presser foot mechanism with upper thread clamp according to claim 2, wherein: the upper end part of the presser foot elastic piece is bent into a loop and sleeved on the hinged shaft, two sides of an opening of the U-shaped part correspondingly form axial clamping to the upper end part of the presser foot elastic piece, the elastic piece is a torsion spring, the torsion spring is sleeved on the hinged shaft, a notch groove for containing the torsion spring is correspondingly arranged in the middle of the upper end part of the presser foot elastic piece, and two ends of the torsion spring extend outwards and are respectively abutted against and pressed on the presser foot elastic piece and the fixing sleeve.
4. The presser foot mechanism with upper thread clamp according to claim 1, 2 or 3, wherein: the lower end of the presser foot elastic sheet is provided with an inclined section which is arranged in an up-down inclined manner, the inclined section is tangentially abutted against the outer circumferential surface of the wire clamping pin, the upper side and the lower side of the inclined section are bent and tilted, the wire hooking plate is arranged in an up-down inclined manner, and the lower end of the wire hooking plate penetrates through the inclined section and the outer circumferential surface of the wire clamping pin when the wire hooking plate moves back and forth.
5. The presser foot mechanism with upper thread clamp according to claim 2 or 3, wherein: the lower end of the presser foot is arranged in an L shape and is connected with one side of the U-shaped part into a whole.
6. The presser foot mechanism with upper thread clamp according to claim 5, wherein: the needle bar frame is provided with a needle bar in a lifting movement way, the lower end part of the needle bar is provided with an embroidery needle, and one transverse side of the lower end of the presser foot is provided with a presser foot through hole for the embroidery needle to pass through.
7. The presser foot mechanism with upper thread clamp according to claim 6, wherein: the needle bar locating device is characterized in that a locating block is fixedly sleeved on the presser foot shaft, and a C-shaped locating part sleeved on the needle bar is correspondingly formed on one side of the locating block.
8. The presser foot mechanism with upper thread clamp according to claim 2 or 3, wherein: the U-shaped part, the fixing sleeve and the presser foot shaft are riveted and fixed together through a pin shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011559117.5A CN112501809A (en) | 2020-12-25 | 2020-12-25 | Presser foot mechanism with facial line clamping function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011559117.5A CN112501809A (en) | 2020-12-25 | 2020-12-25 | Presser foot mechanism with facial line clamping function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112501809A true CN112501809A (en) | 2021-03-16 |
Family
ID=74921974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011559117.5A Pending CN112501809A (en) | 2020-12-25 | 2020-12-25 | Presser foot mechanism with facial line clamping function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112501809A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114197125A (en) * | 2021-12-28 | 2022-03-18 | 浙江越隆缝制设备有限公司 | Thread hooking control method for embroidery machine |
-
2020
- 2020-12-25 CN CN202011559117.5A patent/CN112501809A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114197125A (en) * | 2021-12-28 | 2022-03-18 | 浙江越隆缝制设备有限公司 | Thread hooking control method for embroidery machine |
| CN114197125B (en) * | 2021-12-28 | 2022-12-09 | 浙江越隆缝制设备有限公司 | Thread hooking control method for embroidery machine |
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