CN115538057B - Towel embroidery machine head assembly convenient for needle nozzle adjustment and towel embroidery machine - Google Patents
Towel embroidery machine head assembly convenient for needle nozzle adjustment and towel embroidery machine Download PDFInfo
- Publication number
- CN115538057B CN115538057B CN202211132507.3A CN202211132507A CN115538057B CN 115538057 B CN115538057 B CN 115538057B CN 202211132507 A CN202211132507 A CN 202211132507A CN 115538057 B CN115538057 B CN 115538057B
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- Prior art keywords
- needle
- presser foot
- driving
- needle nozzle
- towel embroidery
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- 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
- D05C11/02—Machine needles
- D05C11/06—Needle-driving or control mechanisms
-
- 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
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention discloses a towel embroidery machine head assembly convenient for needle nozzle adjustment and a towel embroidery machine, wherein the towel embroidery machine head assembly is provided with a crochet needle, a crochet needle driving mechanism for driving the crochet needle, a needle nozzle driving mechanism for driving the needle nozzle, a presser foot and a presser foot driving mechanism for driving the presser foot, the needle nozzle driving mechanism comprises a needle nozzle swinging arm, the needle nozzle swinging arm is provided with a fulcrum, the presser foot comprises a presser foot fixing rod, a presser foot connecting rod fixed with the presser foot fixing rod and a presser foot body arranged at the lower end of the presser foot connecting rod, and is also provided with a needle nozzle height adjusting mechanism which comprises a needle nozzle height adjusting rod, the needle nozzle height adjusting rod is provided with an eccentric driving part, and the eccentric driving part is connected with the fulcrum; a driving cam is arranged on the adjusting driving shaft, the driving shaft drives the driving cam to rotate, the driving cam drives the needle nozzle heightening rod to rotate, and the position of the eccentric driving part is changed; the presser foot body is provided with a supporting part and an elastic support leg extending downwards from the supporting part. The invention can improve the quality of towel embroidery.
Description
[ Field of technology ]
The invention belongs to the technical field of embroidery equipment, and particularly relates to a towel embroidery machine.
[ Background Art ]
When towel embroidery is performed, the working height of the needle mouth can influence the quality of embroidery products, different embroidery products adopt different needle methods, such as two common needle methods of chain locking and hair hooking, and the requirements on the needle mouth height are different. However, in the prior art, the working height of the needle nozzle is fixed, which affects the quality of towel embroidery.
In addition, when the towel is embroidered, the embroidery frame moves, and the towel embroidery presser foot is pressed on the cloth cover, so that the presser foot connecting rod is required to deform to a certain extent, and the deformation generated by displacement of the presser foot XyZ in three directions is absorbed. In the prior art, a buffer spring is generally arranged between the presser foot connecting rod and the presser foot fixing rod and is used for absorbing deformation generated by displacement of the presser foot XyZ in three directions. However, due to the structural limitation of the spring, the deformation generated by the displacement of the presser foot in the Z direction is absorbed more, and the absorption capacity of the deformation generated by the displacement in the other two directions is limited. Thus, the quality of towel embroidery is also affected.
[ Invention ]
Aiming at the defects in the prior art, the technical problem to be solved by the invention is to provide a towel embroidery machine head assembly and a towel embroidery machine which are convenient for needle nozzle adjustment, so that the quality of towel embroidery products is improved.
In order to solve the technical problems, the invention adopts the following technical scheme:
On one hand, the invention provides a towel embroidery machine head assembly convenient for needle nozzle adjustment, which is provided with a crochet needle, a crochet needle driving mechanism for driving the crochet needle, a needle nozzle driving mechanism for driving the needle nozzle, a presser foot and a presser foot driving mechanism for driving the presser foot, wherein the crochet needle driving mechanism comprises a needle rod, a vertical shaft and a transverse shaft; the adjusting driving shaft is provided with a driving cam, the driving shaft drives the driving cam to rotate, and the driving cam drives the needle nozzle height adjusting rod to rotate, so that the position of the eccentric driving part is changed;
The presser foot body is provided with a supporting part and an elastic support leg extending downwards from the supporting part, and the elastic support leg can absorb deformation generated by displacement of the presser foot in three directions of XYZ.
Preferably, one end of the needle nozzle height adjusting rod is provided with a laterally extending fulcrum shaft, the fulcrum shaft is provided with an eccentric hole, and the eccentric hole is connected with an eccentric pin shaft.
Preferably, a driving groove is formed in the other end of the needle nozzle height adjusting rod, and the driving groove is matched with the driving cam.
Preferably, the adjusting driving shaft is driven to rotate by an adjusting motor, and/or the adjusting driving shaft is mounted on a bearing seat, and a bearing is mounted on the bearing seat.
Preferably, an intermediate transmission member is provided between the adjustment motor and the drive shaft.
Preferably, the middle transmission part is a belt, a driving belt wheel is arranged on an output shaft of the adjusting motor, a driven belt wheel is arranged on the driving shaft, and the belt is connected with the driving belt wheel and the driven belt wheel.
Preferably, the supporting part is provided with a torus, a through hole for the embroidery needle to pass through is formed in the center of the torus, the elastic support legs are distributed along the circumferential direction of the torus, and the torus is provided with a notch.
Preferably, the upper ends of the elastic support legs are integrally arranged with the connecting ring, and the connecting ring and the torus are integrally fixed.
Preferably, the lower end side of the presser foot fixing rod is provided with a fixing plane extending vertically, the upper part of the presser foot connecting rod is provided with a vertical fixing section, the vertical fixing section is attached to the fixing plane, and the vertical fixing section is fixed to the fixing plane by adopting a locking screw.
In another aspect, a towel embroidery machine is provided, and the towel embroidery machine head assembly is provided.
According to the technical scheme, the driving cam rotates to drive the needle nozzle height adjusting rod to move, so that the position of the eccentric driving part is changed, and the corresponding needle nozzle swinging arms swing by the same angle due to the fact that the pivot positions of the corresponding needle nozzle swinging arms are changed, the heights for driving the needle nozzle to move are different, and the working height of the needle nozzle can be conveniently adjusted.
In addition, the presser foot connecting rod is directly and fixedly connected with the presser foot fixing rod. Meanwhile, the presser foot body is provided with the elastic supporting feet, the elastic supporting feet can absorb deformation generated by displacement of the presser foot XyZ in three directions, and the capacity of absorbing the deformation generated by the displacement of the presser foot in the three directions can be guaranteed.
Therefore, by the technical scheme, the quality of embroidery is improved.
These features and advantages of the present invention will be disclosed in detail in the following detailed description and the accompanying drawings.
[ Description of the drawings ]
The invention is further described with reference to the accompanying drawings:
FIG. 1 is a schematic view of an exploded view of a towel embroidery needle nozzle height adjustment mechanism and a machine head;
FIG. 2 is a schematic diagram II of the exploded structure of the towel embroidery needle nozzle height adjusting mechanism and the machine head;
FIG. 3 is a schematic diagram of the exploded structure of the towel embroidery crochet driving mechanism and the machine head;
FIG. 4 is a schematic diagram showing the exploded structure of the towel embroidery crochet driving mechanism and the machine head;
FIG. 5 is a schematic diagram of the structure of the horizontal axis;
FIG. 6 is a schematic view of the structure of a vertical shaft;
FIG. 7 is a schematic view of the structure of the needle bar;
FIG. 8 is a schematic view of the structure of the towel embroidery presser foot;
FIG. 9 is an enlarged schematic view of the structure of FIG. 8A;
Reference numerals: the needle mouth driving mechanism 100, the needle mouth 101, the needle mouth driving rod 102, the needle mouth driving block 103, the small connecting rod 104, the needle mouth swing arm 105, the needle mouth height adjusting mechanism 1, the needle mouth height adjusting rod 11, the fulcrum shaft 111, the eccentric hole 112, the driving groove 113, the driving cam 12, the adjusting driving shaft 13, the bearing seat 14, the bearing 15, the driven pulley 16, the driving pulley 17 and the adjusting motor 18; the crochet driving mechanism 2, the crochet 21, the needle bar 22, the key 221, the needle bar driving block 222, the vertical shaft 23, the vertical groove 2301, the driven bevel gear 231, the retainer 232, the transverse shaft 24, the drive bevel gear 241, the synchronous pulley 242, the maintenance hole 243, the step end 244, the transmission belt 25, the tension pulley 251, the driving shaft 26, the driving pulley 261 and the housing upper cover 27; the presser foot 3, the presser foot fixing rod 31, the fixing plane 311, the positioning groove 312, the presser foot connecting rod 32, the vertical fixing section 321, the positioning protrusion 322, the inclined section 323, the presser foot body 33, the supporting part 331, the notch 3311 and the elastic supporting leg 332; a handpiece 4.
[ Detailed description ] of the invention
The technical solutions of the embodiments of the present invention will be explained and illustrated below with reference to the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, and not all embodiments. Based on the examples in the implementation manner, other examples obtained by a person skilled in the art without making creative efforts fall within the protection scope of the present invention.
Those skilled in the art will appreciate that the features of the examples and embodiments described below can be combined with one another without conflict.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Words such as "upper", "lower", "front", "rear", etc., indicating an azimuth or a positional relationship are based on only the azimuth or the positional relationship shown in the drawings, and are merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus/elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present invention.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and include, for example, fixedly attached, detachably attached, or integrally attached; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
Example 1
Referring to fig. 1 to 9, the towel embroidery machine head 4 is provided with a crochet needle 21, a crochet needle driving mechanism 2 for driving the crochet needle, a needle nozzle 101, a needle nozzle driving mechanism 100 for driving the needle nozzle, a presser foot 3, and a presser foot driving mechanism for driving the presser foot.
The needle mouth driving mechanism 100 comprises a needle mouth swing arm 105 and a needle mouth driving rod 102, wherein the needle mouth swing arm is provided with an input end, an output end and a fulcrum, the output end of the needle mouth swing arm is connected with a small connecting rod 104 through a pin shaft, the other end of the small connecting rod is hinged with a needle mouth driving block 103, the needle mouth driving block 103 is fixed on the needle mouth driving rod 102, and the needle mouth 101 is arranged on the needle mouth driving rod 102. Other structures and working principles of the needle nozzle driving mechanism refer to the prior art, and the needle nozzle swinging arm 105 swings up and down around a fulcrum to sequentially drive the small connecting rod 104, the needle nozzle driving block 103 and the needle nozzle driving rod 102, so that the needle nozzle 101 can move up and down finally.
In the prior art, the working height of the needle mouth is fixed, which influences the quality of towel embroidery. Therefore, in order to realize the adjustment of the working height of the needle mouth according to the embroidery type, a needle mouth height adjusting mechanism 1 is provided, and the needle mouth height adjusting mechanism 1 comprises
The needle nozzle heightening rod 11 is provided with an eccentric driving part which is connected with a fulcrum;
And the adjusting driving shaft 13 is provided with a driving cam 12, the driving shaft drives the driving cam to rotate, and the driving cam drives the needle nozzle height adjusting rod to rotate so as to change the position of the eccentric driving part.
Further, describing the specific structure of the eccentric driving part, one end of the needle nozzle height adjusting rod 11 is provided with a laterally extending fulcrum shaft 111, the fulcrum shaft is provided with an eccentric hole 112, the eccentric hole deviates from the center of the fulcrum shaft 111, and the eccentric hole is connected with an eccentric pin shaft, so that the needle nozzle height adjusting rod rotates around the eccentric pin shaft. The other end of the needle nozzle heightening rod is provided with a driving groove 113 which is matched with the driving cam 12. The driving groove is a U-shaped groove, the driving cam 12 rotates to drive the needle nozzle height adjusting rod 11 to move, the position of the fulcrum shaft 111 is changed, the fulcrum position of the needle nozzle swinging arm is changed, the corresponding needle nozzle swinging arm swings by the same angle, and the heights for driving the needle nozzle to move are different.
The adjusting driving shaft 13 is driven to rotate by the adjusting motor 18, the adjusting motor 18 can adopt a stepping motor or other motors, the rotating angle of the adjusting motor 18 determines the rotating angle of the adjusting driving shaft 13 and also determines a specific value of the needle nozzle height adjustment, and therefore, the adjusting motor 18 can be controlled according to the requirement. For example, different needle mouth height values are respectively set for embroidery one, embroidery two and embroidery three, and a first rotation angle, a second rotation angle and a third rotation angle of the adjusting motor 18 are correspondingly set, after embroidery is replaced, embroidery types are manually input, and the adjusting motor rotates by corresponding angles, so that the work height of the needle mouth is adjusted.
The adjustment motor may also directly drive the adjustment drive shaft 13 without limitation of space, but in general there is no space for installing the adjustment motor in the axial extension direction of the adjustment drive shaft 13. Therefore, an intermediate transmission member is arranged between the adjusting motor and the driving shaft.
In this embodiment, the intermediate transmission member is a belt, a driving pulley 17 is mounted on an output shaft of the stepper motor, a driven pulley 16 is mounted on the driving shaft, and the belt is connected with the driving pulley and the driven pulley. It will be appreciated that other transmission arrangements may be substituted.
Specifically, the adjusting driving shaft 13 is mounted on a bearing seat 14, and a bearing 15 is mounted on the bearing seat. The bearing seat and the stepping motor are arranged on a mounting plate, and the mounting plate is fixed on the machine head shell. And the stepping motor is positioned at the concave part of the back surface of the lower part of the machine head shell.
After the technical scheme is adopted, the working height of the needle nozzle is changed by changing the pivot position of the needle nozzle swing arm.
Referring to the prior art, as shown in fig. 3 to 7, the machine head 4 is provided with a machine head housing, a housing upper cover 27 is arranged above the machine head housing, the crochet hook driving mechanism 2 comprises a needle bar 22, a vertical shaft 23 and a transverse shaft 24, the crochet hook 21 is connected with the needle bar 22, the needle bar 22 is movably connected with the vertical shaft 23 so as to enable the needle bar to move up and down relative to the vertical shaft, the vertical shaft drives the needle bar to rotate, the transverse shaft 24 is perpendicular to the vertical shaft 23 and is in transmission connection, and the machine head housing is provided with left and right side walls.
In the prior art, the vertical shaft 23 has a hollow structure at its center, which allows the needle bar 22 to pass through vertically. In order to realize that the vertical shaft drives the needle bar to rotate, the side wall of the vertical shaft is provided with a vertical groove 2301 which penetrates through the hollow inner cavity and extends vertically, the upper part of the needle bar is detachably connected with a key 221, the key 221 is matched with the vertical groove 2301, on one hand, the needle bar is guided to move up and down relative to the vertical shaft, and on the other hand, the needle bar can be driven to rotate together when the vertical shaft rotates. The lower part of the needle bar is connected with a needle bar driving block 222, and the needle bar driving block is hinged with a driving connecting rod, so that when the needle bar driving block rotates along with the needle bar, the driving connecting rod keeps still, and meanwhile, when the driving connecting rod moves up and down, the needle bar driving block and the needle bar can be driven to move together.
In order to avoid the space above the vertical shaft, the needle bar is convenient to maintain and replace. The cross shaft 24 is rotatably supported on the left or right side wall of the handpiece housing with one end passing outwardly through the side wall and connected to a drive assembly and the other end extending above the vertical shaft but not above the vertical shaft and driving the vertical shaft via a reversing drive mechanism. Therefore, the maintenance and replacement of the needle bar are not affected, but the transmission is not stable enough because the other end of the transverse shaft is suspended.
Therefore, in order to ensure stable transmission, the maintenance and replacement of the needle bar are not affected. The transverse shaft is rotatably supported on the left and right side walls of the machine head shell, a driving shaft 26 parallel to the transverse shaft is further arranged, an intermediate transmission assembly is arranged between the driving shaft 26 and the transverse shaft, and a maintenance hole 243 for enabling the needle bar to pass upwards is arranged on the transverse shaft 24 corresponding to the vertical shaft.
The transverse shaft is rotatably supported on the left side wall and the right side wall of the machine head shell, and the connecting parts of the middle transmission assembly, the turning transmission mechanism and the transverse shaft are positioned between the left side wall and the right side wall of the machine head shell, so that the transmission is more stable relative to the suspension mode of the transverse shaft; meanwhile, the transverse shaft is provided with a maintenance hole corresponding to the vertical shaft, so that the needle bar can be penetrated upwards, and maintenance and replacement of the needle bar are also considered.
As an embodiment, the intermediate transmission assembly includes a transmission belt 25, a transmission pulley correspondingly mounted on the transverse shaft and the driving shaft and in transmission connection with the transmission belt, specifically a driving pulley 261 mounted on the driving shaft, and a synchronous pulley 242 mounted on the transverse shaft. In addition, the drive belt is connected to a tension pulley 251.
The upper end of the vertical shaft 23 is provided with a driven bevel gear 231, a retainer ring 232 is arranged below the driven bevel gear, specifically, the upper end of the vertical shaft is provided with a step part, the driven bevel gear 231 is fixed on the step part, the retainer ring is supported on the step end face of the step part, and the driven bevel gear 231 is blocked and limited by the retainer ring. The transverse shaft is provided with a driving bevel gear 241 which is meshed with the driven bevel gear for transmission, the transverse shaft is provided with a step end 244 at the side of the maintenance hole, the synchronous pulley 242 and the driving bevel gear 241 are arranged at the step end, and the axial direction of the driving bevel gear 241 is limited by the end face of the step end.
Since the engagement between the drive bevel gear 241 and the driven bevel gear 231 generates an axial component force on the transverse shaft, thrust ball bearings for supporting the transverse shaft are mounted on the left and right side walls of the head housing.
In addition, referring to the prior art, transversely pass on the aircraft nose casing have with the main shaft of driving shaft parallel, be equipped with linkage drive assembly between driving shaft and the main shaft, like this, main shaft rotation settlement angle, the driving shaft just can act, and linkage drive assembly's structure belongs to prior art, and no more description here.
As shown in fig. 8 and 9, the towel embroidery presser foot 3 includes a presser foot fixing lever 31, a presser foot connecting lever 32 fixed to the presser foot fixing lever 31, and a presser foot body 33 provided at the lower end of the presser foot connecting lever.
When embroidery is performed, the embroidery frame moves, the towel embroidery presser foot is pressed on the cloth cover, and therefore the presser foot connecting rod is required to deform to a certain extent so as to absorb deformation generated by displacement of the presser foot XyZ in three directions. In the prior art, a buffer spring is generally disposed between the presser foot connecting rod 32 and the presser foot fixing rod 31, so as to absorb deformation generated by displacement of the presser foot XyZ in three directions. However, due to the structural limitation of the spring, the deformation generated by the displacement of the presser foot in the Z direction is absorbed more, and the absorption capacity of the deformation generated by the displacement in the other two directions is limited.
Accordingly, in the present embodiment, the presser foot connecting rod 32 is directly and fixedly connected to the presser foot fixing rod. Meanwhile, the presser foot body 33 is provided with a supporting portion 331 and an elastic leg 332 extending downward from the supporting portion. The elastic support leg can absorb deformation generated by displacement of the presser foot XyZ in three directions, and the capacity of absorbing deformation generated by displacement of the presser foot in three directions can be ensured. In addition, the buffer spring is omitted, so that the structure is further simplified, the process of installing the buffer spring is avoided, and the cost is reduced.
It will be appreciated that deformation of the presser foot xyz is absorbed by deformation of the resilient legs 332. Thus, the use requirements can be met by designing the shape and length of the resilient legs 332.
In order to ensure that the crochet passes through the presser foot, the supporting portion 331 is provided with a torus, a through hole for the embroidery needle to pass through is formed in the center of the torus, and the elastic supporting legs 332 are distributed along the circumferential direction of the torus.
In this embodiment, the torus is provided with a notch 3311. Of course, no elastic leg is provided corresponding to the notch position.
As an embodiment, the upper ends of the elastic legs 332 are integrally provided with the connecting ring, and the elastic legs and the connecting ring may be integrally formed into a rubber structure, and then the connecting ring is integrally fixed with the torus. The presser foot can be fixed in a jogged mode or fixed in an adhesive mode, a screw mode and the like, so that the integral structural strength of the presser foot is guaranteed, and enough deformation can be generated.
It will be appreciated that the shape of the resilient legs may vary, for example, they may be rectangular, trapezoidal, triangular or circular arc.
For the convenience of the fixation of presser foot dead lever 31 and presser foot connecting rod 32, the lower extreme side of presser foot dead lever is equipped with vertical extension's fixed plane 311, the upper portion of presser foot connecting rod is equipped with vertical fixed section 321, vertical fixed section laminating is in fixed plane to vertical fixed section adopts the locking screw to be fixed in fixed plane, and wherein, fixed plane 311 corresponds to be equipped with the screw hole, and vertical fixed section 321 sets up the through-hole. It will be appreciated that the vertical fixing section 321 may be fixed to the presser foot fixing bar 31 by a hoop.
Further, a positioning groove 312 is formed in the side surface of the presser foot fixing rod above the fixing plane, and a positioning protrusion 322 extending upwards and positioned in the positioning groove is formed above the vertical fixing section. The positioning protrusion 322 is matched with the positioning groove 312, so that the vertical fixing section is aligned with the fixing plane, and the through hole in the vertical fixing section 321 is aligned with the screw hole in the fixing plane 311, thereby facilitating the tightening of the locking screw.
In addition, since the center of the presser foot body 33 is aligned with the hook, the presser foot fixing lever 31 is arranged side by side with the needle bar 22, and the presser foot connecting lever is further provided with an inclined section 323 extending obliquely from the bottom end of the vertical fixing section to the supporting section, so that the torus of the supporting section 331 is aligned with the hook.
The presser foot driving mechanism can refer to the prior art and comprises a presser foot lifting rod, and a reset piece is arranged between the presser foot fixing rod and the presser foot lifting rod. It is understood that the presser foot lifting bar may be a needle bar, which compresses the reset member and drives the presser foot fixing bar to press down when moving down, and the needle bar rises. Of course, the presser foot driving mechanism may be an existing independent presser foot driving mechanism.
While the invention has been described in terms of specific embodiments, it will be appreciated by those skilled in the art that the invention is not limited thereto but includes, but is not limited to, the drawings and the description of the specific embodiments. Any modifications which do not depart from the functional and structural principles of the invention are intended to be included within the scope of the appended claims.
Claims (10)
1. The utility model provides a make things convenient for towel embroidery head subassembly that needle mouth adjusted is equipped with crochet hook, the crochet hook actuating mechanism of drive crochet hook, needle mouth, the needle mouth actuating mechanism of drive needle mouth, presser foot, the presser foot actuating mechanism of drive presser foot, crochet hook actuating mechanism includes needle bar, vertical axis and cross axle, and crochet hook is connected with the needle bar, and needle bar and vertical axis swing joint so that the needle bar reciprocate relative to the vertical axis, and the vertical axis drives the needle bar and rotates, and the cross axle is perpendicular and the transmission is connected with the vertical axis, the needle mouth actuating mechanism includes the needle mouth swing arm, the needle mouth swing arm is equipped with the fulcrum, the presser foot includes the presser foot dead lever, the presser foot connecting rod fixed with the presser foot dead lever and locates the presser foot body of presser foot connecting rod lower extreme, its characterized in that still is equipped with needle mouth height adjustment mechanism, needle mouth height adjustment includes
The needle nozzle heightening rod is provided with an eccentric driving part which is connected with the fulcrum; the adjusting driving shaft is provided with a driving cam, the driving shaft drives the driving cam to rotate, and the driving cam drives the needle nozzle height adjusting rod to rotate, so that the position of the eccentric driving part is changed;
The presser foot body is provided with a supporting part and an elastic support leg extending downwards from the supporting part, and the elastic support leg can absorb deformation generated by displacement of the presser foot in three directions of XYZ.
2. The towel embroidery machine head assembly convenient for needle nozzle adjustment according to claim 1, wherein one end of the needle nozzle height adjusting rod is provided with a laterally extending fulcrum shaft, the fulcrum shaft is provided with an eccentric hole, and the eccentric hole is connected with an eccentric pin shaft.
3. The towel embroidery machine head assembly convenient for needle nozzle adjustment according to claim 1, wherein the other end of the needle nozzle height adjusting rod is provided with a driving groove, and the driving groove is matched with the driving cam.
4. The towel embroidery machine head assembly for facilitating needle nozzle adjustment according to claim 1, wherein the adjustment driving shaft is driven to rotate by an adjustment motor, and/or the adjustment driving shaft is mounted on a bearing seat on which a bearing is mounted.
5. The towel embroidery machine head assembly for facilitating needle nozzle adjustment according to claim 4, wherein an intermediate transmission member is provided between the adjustment motor and the drive shaft.
6. The towel embroidery machine head assembly convenient for needle nozzle adjustment according to claim 5, wherein the intermediate transmission member is a belt, a driving belt wheel is installed on an output shaft of the adjusting motor, a driven belt wheel is installed on the driving shaft, and the sheet belt is connected with the driving belt wheel and the driven belt wheel.
7. The towel embroidery machine head assembly convenient for needle nozzle adjustment according to claim 1, wherein the supporting part is provided with a torus, a through hole for the embroidery needle to pass through is formed in the center of the torus, the elastic support legs are distributed along the circumference of the torus, and the torus is provided with a notch.
8. The towel embroidery machine head assembly convenient for needle nozzle adjustment according to claim 7, wherein the upper ends of the elastic support legs are integrally arranged with a connecting ring, and the connecting ring is integrally fixed with the torus.
9. The towel embroidery machine head assembly convenient for needle nozzle adjustment according to claim 1, wherein a fixing plane extending vertically is arranged on the side face of the lower end of the presser foot fixing rod, a vertical fixing section is arranged on the upper portion of the presser foot connecting rod, the vertical fixing section is attached to the fixing plane, and the vertical fixing section is fixed to the fixing plane by a locking screw.
10. Towel embroidery machine characterized in that a towel embroidery head assembly according to any one of claims 1 to 9 is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211132507.3A CN115538057B (en) | 2022-09-08 | 2022-09-08 | Towel embroidery machine head assembly convenient for needle nozzle adjustment and towel embroidery machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211132507.3A CN115538057B (en) | 2022-09-08 | 2022-09-08 | Towel embroidery machine head assembly convenient for needle nozzle adjustment and towel embroidery machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115538057A CN115538057A (en) | 2022-12-30 |
| CN115538057B true CN115538057B (en) | 2024-06-04 |
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| CN202211132507.3A Active CN115538057B (en) | 2022-09-08 | 2022-09-08 | Towel embroidery machine head assembly convenient for needle nozzle adjustment and towel embroidery machine |
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| CN115538057A (en) | 2022-12-30 |
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