CN210481717U - Buffer type independent presser foot mechanism - Google Patents
Buffer type independent presser foot mechanism Download PDFInfo
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- CN210481717U CN210481717U CN201921180454.6U CN201921180454U CN210481717U CN 210481717 U CN210481717 U CN 210481717U CN 201921180454 U CN201921180454 U CN 201921180454U CN 210481717 U CN210481717 U CN 210481717U
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- lifting rod
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- independent presser
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Abstract
A buffer type independent presser foot mechanism comprises a presser foot lifting rod, an independent presser foot and a positioning block, wherein the positioning block is fixedly connected to the lower part of the presser foot lifting rod, and the independent presser foot is movably connected to the lower part of the presser foot lifting rod; the independent presser foot is provided with a first contact surface, and the first contact surface is abutted against the side surface of the positioning block and can vertically slide relatively; the independent presser foot is provided with a second contact surface, the presser foot lifting rod is sleeved with a buffer spring, and the buffer spring is positioned between the positioning block and the second contact surface. The utility model discloses simple structure, convenient to use, independent presser foot for the presser foot lifter can carry out a certain amount of buffering displacement, can not take place the rigidity striking with the embroidery face, and the damping is fallen and is made an uproar, plays the guard action to the part, and increase of service life can adapt to the embroidery material on the surface that differs in height, improves embroidery quality, is worth using widely in this field.
Description
Technical Field
The utility model relates to an embroidery machine technical field specifically is an independent presser foot mechanism of buffering formula.
Background
The existing embroidery machine experiences the transition from the traditional mode that the presser foot and the needle rod are driven integrally to the mode that the presser foot and the needle rod are driven separately and independently on the design of the presser foot driving mechanism, but most of independent presser foot driving mechanisms are still imperfect in structure, the structure is damaged due to the fact that no effective buffer design exists, and normal embroidery is affected. The independent presser foot control mechanism of the embroidery machine disclosed in the patent document with the application number of CN201710722585.1 comprises a headstock, wherein a driving mechanism is arranged on the headstock, the driving mechanism is connected with a presser foot driving seat through a connecting rod transmission structure, the presser foot driving seat is movably sleeved on a presser foot driving rod fixedly connected with the headstock, one end of the presser foot driving seat is connected with a presser foot needle rod which can move synchronously along with the presser foot driving seat when the presser foot driving seat moves up and down along the axial direction of the presser foot driving rod, the presser foot needle rod is connected with a presser foot, and the circumferential outer side of the presser foot driving seat is also connected with a needle rod component which is movably arranged relative to the presser foot driving seat through a rod positioning structure and does not interfere with each other when the presser foot driving seat moves up and down. The presser foot mechanism and the needle bar mechanism are independently separated, the presser foot is independently driven by the driving device, but the problems of large rigid impact force, large working noise and easy damage of parts still exist, and particularly the problems are serious when the situation that the surface height is different caused by uneven thickness of embroidery materials or the situation exists in the presser foot mechanism is met, and the presser foot mechanism cannot adapt to the embroidery situation.
Disclosure of Invention
A technical object of the utility model is to provide an independent presser foot mechanism of buffering formula, the presser foot that exists among the solution prior art is big, noise at work is big, the part is easily because of the impaired problem of rigidity striking to embroidery face impact force.
The utility model discloses a concrete technical scheme as follows: a buffer type independent presser foot mechanism comprises a presser foot lifting rod, an independent presser foot and a positioning block, wherein the positioning block is fixedly connected to the lower part of the presser foot lifting rod, and the independent presser foot is movably connected to the lower part of the presser foot lifting rod; the independent presser foot is provided with a first contact surface, and the first contact surface is abutted against any side surface of the positioning block and can vertically slide relative to the positioning block; the independent presser foot is provided with a second contact surface, the presser foot lifting rod is sleeved with a buffer spring, and the buffer spring is positioned between the positioning block and the second contact surface.
Preferably, the independent presser foot comprises an upper positioning portion, a middle connecting portion and a lower pressing portion, the presser foot lifting rod penetrates through the middle connecting portion, the first contact surface is located on the upper positioning portion, and the second contact surface is located on the middle connecting portion.
Preferably, the independent presser foot further comprises an upper connecting part, the upper connecting part is laterally connected with the upper positioning part, the presser foot lifting rod penetrates through the upper connecting part, the positioning block is located between the upper connecting part and the middle connecting part, and the positioning block can abut against the upper connecting part.
Preferably, a first limit buffer part is arranged on the presser foot lifting rod, the first limit buffer part is positioned between the upper connecting part and the positioning block, and the first limit buffer part is used for abutting against the upper connecting part after the independent presser foot is reset.
Preferably, a cushion layer is disposed on an upper surface of the positioning block, and the cushion layer is configured to abut against the upper connecting portion after the independent presser foot is reset.
Preferably, a second limit buffer part is arranged on the body rod section of the presser foot lifting rod, which is located below the intermediate connecting part, and the second limit buffer part is used for abutting against the intermediate connecting part after the independent presser foot is reset.
Preferably, the lower end of the buffer spring is fixedly connected with the second contact surface.
Preferably, the presser foot lifting rod is also fixedly connected with a driving seat, and the driving seat is provided with a transmission butt joint.
Preferably, a mute contact layer is arranged outside the transmission butt joint.
Preferably, the independent presser foot mechanism further comprises a needle bar frame, a lower connecting rail is arranged on the needle bar frame, the presser foot lifting rod penetrates through the lower connecting rail and can vertically and relatively slide, a third limiting buffer part is arranged below the lower connecting rail on the presser foot lifting rod, and the third limiting buffer part is used for abutting against the lower connecting rail after the presser foot lifting rod is reset.
Preferably, a return spring is sleeved on the presser foot lifting rod and is positioned between the driving seat and the lower connecting rail.
The technical advantages of the utility model reside in that independent presser foot mechanism simple structure, convenient to use, independent presser foot for the presser foot lifter can carry out a certain amount of buffering displacement, can not take place the rigidity striking with the embroidery face, and the damping is fallen and is made an uproar, plays the guard action to the part, and increase of service life can adapt to the height embroidery material on surface not different, improves embroidery quality, is worth using widely in this field.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;
FIG. 2 is a schematic side sectional view of the structure of FIG. 1;
FIG. 3 is a schematic view of an alternative embodiment of the presser foot lifter bar of FIG. 1;
fig. 4 is a schematic view of an overall structure of another embodiment of the present invention;
FIG. 5 is a schematic side cross-sectional view of FIG. 4;
FIG. 6 is a schematic view of an alternative embodiment of the presser foot lifter bar of FIG. 4;
the names of the parts corresponding to the numbers in the figure are respectively: 1-presser foot lifting rod, 11-first limiting buffer part, 12-second limiting buffer part, 13-third limiting buffer part, 2-independent presser foot, 21-upper positioning part, 22-middle connecting part, 23-lower pressing part, 24-upper connecting part, 3-positioning block, 4-buffer spring, 5-driving seat, 6-transmission butt joint, 7-needle bar frame, 71-lower connecting gear and 8-reset spring.
Detailed Description
The invention will be further explained by means of specific embodiments with reference to the drawings, in which:
see fig. 1 and 2, an embodiment of a buffer type independent presser foot mechanism comprises a needle bar frame 7, a presser foot lifting rod 1, an independent presser foot 2 and a positioning block 3, wherein a lower connecting rail 71 located below a driving seat 5 is arranged on the needle bar frame 7, the presser foot lifting rod 1 penetrates through the lower connecting rail 71 and can vertically slide relatively, a reset spring 8 is sleeved on the presser foot lifting rod 1, the reset spring 8 is located between the driving seat 5 and the lower connecting rail 71 and is used for resetting through elasticity after the presser foot lifting rod 1 slides downwards, the positioning block 3 is fixedly connected to the lower part of the presser foot lifting rod 1, and the independent presser foot 2 is movably connected to the lower part of the presser foot lifting rod 1 and can vertically slide relative to the presser foot lifting rod 1. The presser foot lifting rod 1 is also fixedly connected with a driving seat 5, the driving seat 5 is provided with a transmission butt joint 6, and the transmission butt joint 6 is used for being directly or indirectly in transmission connection with a driving motor arranged additionally so as to drive the presser foot lifting rod 1 to do reciprocating lifting motion.
When the presser foot lifting rod 1 is driven by an external motor or the reset spring 8 resets, the reset height of the presser foot lifting rod 1 is limited, and the reset height can be realized by arranging a third limiting buffer part 13 on the presser foot lifting rod 1, and as shown in fig. 3, the third limiting buffer part 13 can be abutted against the lower surface of the lower connecting rail 71. The specific arrangement mode can be that a convex ring is integrally formed or fixedly connected at a certain position on the presser foot lifting rod 1 below the lower connecting rail 71 according to the preset reset stroke of the presser foot lifting rod 1, and a soft elastic ring is sleeved outside the convex ring; or a soft elastic ring can be directly and externally fixedly connected on the presser foot lifting rod 1, and the soft elastic ring can be a rubber ring. When the presser foot lifting rod 1 rises and resets at every turn, the third limiting buffer part 13 can not only realize positioning, but also play a role in damping, reducing noise and protecting components.
Can set up the silence contact layer outward of transmission butt joint 6, specifically like rubber circle or similar soft materials spare etc. in addition the silence contact layer actually also can select to set up on the intermediate junction structure who is connected with transmission butt joint 6 transmission, the silence contact layer further reduces the collision noise and the vibration in the mechanism working process.
In the embodiment shown in fig. 1 and 2, the independent presser foot 2 includes, from top to bottom, an upper connecting portion 24, an upper positioning portion 21, a middle connecting portion 22 and a lower pressing portion 23, preferably integrally formed, the upper connecting portion 24 is a horizontal plate, the upper positioning portion 21 is a vertical plate, the middle connecting portion 22 is a horizontal plate, the lower pressing portion 23 is an oblique plate and a horizontal end block provided at an end thereof, the horizontal end block is provided with a pinhole corresponding to a needle bar beside the presser foot lifting rod 1, that is, aligned with a needle head portion of the needle bar on the needle bar frame 7 and allows the needle head portion to pass through without interference.
And presser foot lifter 1 from last to down in proper order passes through upper connecting portion 24 and intermediate junction portion 22 (but presser foot lifter 1 bottom can not support lower clamping part 23, generally speaking downwards pass intermediate junction portion 22 a bit can), locating piece 3 is located between upper connecting portion 24 and the intermediate junction portion 22, buffer spring 4 has been established to the cover on presser foot lifter 1 pole section between locating piece 3 and intermediate junction portion 22, the upper surface of intermediate junction portion 22 is the second contact surface, buffer spring 4 upper end offsets with the bottom surface of locating piece 3 and the lower extreme offsets with the second contact surface. Just by the existence of the buffer spring 4 and the arrangement that the independent presser foot 1 is movably connected and can vertically slide relative to the presser foot lifting rod 1, when the independent presser foot 1 contacts the surface of embroidery materials, the rigid impact existing in the traditional structure is eliminated, the buffer vibration reduction and the noise reduction are realized, and the damage of impact acceleration components is avoided.
The upper positioning portion 21 connected between the upper connecting portion 24 and the middle connecting portion 22 laterally abuts against the positioning block 3, the inner side surface of the upper positioning portion 21 is a first contact surface, one side surface of the positioning block 3 abuts against the first contact surface, and the two surfaces can vertically slide relatively. Another function of the positioning block 3 is to prevent the entire independent presser foot 2 from rotating around the presser foot lifting rod 1 in order to abut against the upper positioning portion 21 laterally. In order to obtain better effect, in some embodiments, sliding portions, such as sliding grooves, sliding blocks, etc., or similar structures (not illustrated in the drawings) facilitating vertical sliding guiding and limiting, may be provided on the first contact surface and the side surface of the positioning block 3, respectively.
Referring to fig. 3 again, in order to prevent the upper connecting portion 24 and the positioning block 3 from having frequent rigid impact, the presser foot lifting rod 1 is further provided with a first limiting buffer portion 11, and the first limiting buffer portion 11 is located between the upper connecting portion 24 and the positioning block 3. The specific arrangement mode is that a convex ring is integrally formed or fixedly connected at a certain position of the pressure foot lifting rod 1 positioned at the positioning block 3 according to the preset reset stroke of the independent pressure foot 2, and a soft elastic ring is sleeved outside the convex ring; or a soft elastic ring can be directly and externally fixedly connected on the presser foot lifting rod 1, and the soft elastic ring can be a rubber ring. When the independent presser foot 2 is reset along the buffer spring 4 and is drawn close to the positioning block 3 each time, the first limiting buffer part 11 is used for bearing the impact of the upper connecting part 24, so that the positioning of the independent presser foot 2 can be realized, and the effects of vibration reduction, noise reduction and component protection are achieved. Needless to say, the first stopper buffer 11 is not selected, but a soft elastic cushion layer (not shown in the drawings), such as a rubber pad, is selected to be provided on the upper surface of the positioning block 3, and the same effect can be achieved.
Another way to avoid the frequent occurrence of rigid impact between the upper connecting portion 24 and the positioning block 3 is to provide a second limiting buffer portion 12 on the body rod section of the presser foot lifting rod 1 below the middle connecting portion 22, see fig. 6, where the second limiting buffer portion 12 can abut against the lower surface of the middle connecting portion 22. The second limit buffer part 12 is specifically arranged in a way that a convex ring is integrally formed or fixedly connected at a certain position on the presser foot lifting rod 1 below the middle connecting part 22 according to the preset reset stroke of the independent presser foot 2, and a soft elastic ring is sleeved outside the convex ring; or a soft elastic ring can be directly and externally fixedly connected on the presser foot lifting rod 1, and the soft elastic ring can be a rubber ring. It should be noted that, at this time, when it is required to ensure that the lower surface of the intermediate connecting portion 22 abuts against the second limiting buffer portion 12, the upper connecting portion 24 and the upper surface of the positioning block 3 do not collide with each other and impact occurs, and the upper connecting portion 24 may be set higher or the second limiting buffer portion 12 may be set higher by various methods, such as increasing the setting height of the upper connecting portion 24 or increasing the setting height of the second limiting buffer portion 12, as long as the upper connecting portion 24 does not abut against the positioning block 3.
With regard to the upper connecting portion 24 mentioned in the foregoing embodiment, it should be emphasized that a structure in which the upper connecting portion 24 is not provided may be actually selected and function normally as shown in fig. 4 and 5. The upper connecting portion 24 is provided to facilitate the movable connection between the independent presser foot 2 and the presser foot lifting rod 1, that is, the independent presser foot 2 cannot fall off from the presser foot lifting rod 1 by the way that the upper connecting portion 24 can be hung on the positioning block 3 (or hung on the first limiting buffer portion 11), and the vertical sliding function can be realized at the same time. If the upper connecting part 24 is not arranged, the independent presser foot 2 is ensured to not fall off from the presser foot lifting rod 1 simply and effectively and vertical sliding is also considered, the arrangement of the second limiting buffer part 12 mentioned in the previous paragraph can be realized, and the effects of vibration reduction, noise reduction and component protection can be realized. In some further embodiments, the lower end of the buffer spring 4 may be connected to the second contact surface without the upper connecting portion 24 or the second limiting buffer 12, and the independent presser foot 2 may be prevented from falling off, but this is not preferred to the aforementioned embodiment if it is provided singly.
It can also be seen from fig. 4 and 5 that the intermediate connecting portion 22 differs from the simple variant design of the previous embodiment in that the intermediate connecting portion 22 is exchanged from a horizontal plate to a frame (of course, the design of the horizontal plate can still be selected, and the design of the solid block with holes can also be selected), the presser foot lifter bar 1 vertically penetrates through the frame and can slide relatively, and the design of the frame increases the structural strength and provides better all-round protection for the presser foot lifter bar 1.
The independent presser foot driving mechanism of the embroidery machine on the market at present does not have related presser foot buffer design or the structure is not perfect enough, so that the presser foot can generate rigid impact with the embroidery material in the working process, the vibration and the noise are large, the presser foot is easy to damage, and especially when the embroidery condition of uneven height of the surface of the embroidery material is touched, the problems of deflection of an embroidery needle and the presser foot, damage to the embroidery material and overlarge load of a motor can be caused, and the consequence is more serious. Independent presser foot 2 and buffering design in this embodiment make it have current structure, and independent presser foot 2 can have certain buffering displacement, and presser foot lifter 1 also can cushion the contact with independent presser foot 2 or needle bar frame 7 at reciprocating motion in-process, and the damping is fallen and is made an uproar, and is not fragile, is favorable to improving embroidery quality, improves operational environment, extension parts life.
It will be appreciated by persons skilled in the art that the embodiments of the invention described above and shown in the drawings are given by way of example only and are not limiting of the invention. The objects of the present invention have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the examples, and any variations or modifications of the embodiments of the present invention may be made without departing from the principles.
Claims (10)
1. The utility model provides an independent presser foot mechanism of buffering formula, includes presser foot lifter (1) and independent presser foot (2), its characterized in that: the independent presser foot lifting rod (1) is movably connected with the lower part of the presser foot lifting rod (1) and can vertically slide relative to the presser foot lifting rod (1);
a first contact surface is arranged on the independent presser foot (2), and the first contact surface is abutted against any side surface of the positioning block (3) and can vertically slide relative to each other;
the independent presser foot (2) is provided with a second contact surface, the presser foot lifting rod (1) is sleeved with a buffer spring (4), and the buffer spring (4) is located between the positioning block (3) and the second contact surface.
2. The independent presser foot mechanism of claim 1, wherein: the independent presser foot (2) comprises an upper positioning part (21), a middle connecting part (22) and a lower pressing part (23), the presser foot lifting rod (1) penetrates through the middle connecting part (22), the first contact surface is located on the upper positioning part (21), and the second contact surface is located on the middle connecting part (22).
3. The independent presser foot mechanism of claim 2, wherein: the independent presser foot (2) further comprises an upper connecting part (24), the upper connecting part (24) is laterally connected with the upper positioning part (21), the presser foot lifting rod (1) penetrates through the upper connecting part (24), the positioning block (3) is located between the upper connecting part (24) and the middle connecting part (22), and the positioning block (3) can abut against the upper connecting part (24).
4. The cushioned independent presser foot mechanism of claim 3, wherein: the presser foot lifting rod (1) is provided with a first limiting buffer part (11), the first limiting buffer part (11) is located between the upper connecting part (24) and the positioning block (3), and the first limiting buffer part (11) is used for abutting against the upper connecting part (24) after the independent presser foot (2) is reset.
5. The cushioned independent presser foot mechanism of claim 3, wherein: the upper surface of the positioning block (3) is provided with a cushion pad layer, and the cushion pad layer is used for abutting against the upper connecting part (24) after the independent presser foot (2) is reset.
6. The independent presser foot mechanism of claim 2, wherein: and a second limiting buffer part (12) is arranged on the body rod section of the presser foot lifting rod (1) below the middle connecting part (22), and the second limiting buffer part (12) is used for abutting against the middle connecting part (22) after the independent presser foot (2) is reset.
7. The independent presser foot mechanism of claim 1, wherein: the lower end of the buffer spring (4) is fixedly connected with the second contact surface.
8. The independent presser foot mechanism of claim 1, wherein: the presser foot lifting rod (1) is further fixedly connected with a driving seat (5), and a transmission butt joint (6) is arranged on the driving seat (5).
9. The cushioned independent presser foot mechanism of claim 8, wherein: and a mute contact layer is arranged outside the transmission butt joint (6).
10. The independent presser foot mechanism of claim 1, wherein: the independent presser foot mechanism further comprises a needle bar frame (7), a lower connecting rail (71) is arranged on the needle bar frame (7), the presser foot lifting rod (1) penetrates through the lower connecting rail (71) and can vertically slide relative to the lower connecting rail, a third limiting buffer part (13) is arranged below the lower connecting rail (71) on the presser foot lifting rod (1), and the third limiting buffer part (13) is used for abutting against the lower connecting rail (71) after the presser foot lifting rod (1) resets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921180454.6U CN210481717U (en) | 2019-07-25 | 2019-07-25 | Buffer type independent presser foot mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921180454.6U CN210481717U (en) | 2019-07-25 | 2019-07-25 | Buffer type independent presser foot mechanism |
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| Publication Number | Publication Date |
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| CN210481717U true CN210481717U (en) | 2020-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921180454.6U Active CN210481717U (en) | 2019-07-25 | 2019-07-25 | Buffer type independent presser foot mechanism |
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| CN (1) | CN210481717U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111962228A (en) * | 2020-08-25 | 2020-11-20 | 浙江越隆缝制设备有限公司 | Holding mechanism of presser foot |
-
2019
- 2019-07-25 CN CN201921180454.6U patent/CN210481717U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111962228A (en) * | 2020-08-25 | 2020-11-20 | 浙江越隆缝制设备有限公司 | Holding mechanism of presser foot |
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