CN220284388U - Embroidery machine with electronic presser foot - Google Patents
Embroidery machine with electronic presser foot Download PDFInfo
- Publication number
- CN220284388U CN220284388U CN202321794491.2U CN202321794491U CN220284388U CN 220284388 U CN220284388 U CN 220284388U CN 202321794491 U CN202321794491 U CN 202321794491U CN 220284388 U CN220284388 U CN 220284388U
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- CN
- China
- Prior art keywords
- presser foot
- embroidery machine
- electronic
- needle plate
- pressure sensor
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- 239000002184 metal Substances 0.000 claims description 3
- 239000004744 fabric Substances 0.000 abstract description 15
- 238000004140 cleaning Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Sewing Machines And Sewing (AREA)
Abstract
The utility model discloses an embroidery machine with an electronic presser foot, which comprises a machine head provided with the electronic presser foot mechanism and a needle plate arranged below the machine head, wherein the electronic presser foot mechanism comprises a presser foot and a presser foot driving motor for driving the presser foot to move up and down, the needle plate is correspondingly provided with a spring plate capable of moving up and down below the presser foot, the lower part of the spring plate is provided with a pressure sensor, and the pressure sensor acts with the spring plate to sense the pressure transmitted by the presser foot when the presser foot is pressed down. According to the technical scheme, the pressure sensor acts with the elastic sheet when the presser foot is pressed down to sense the pressure transmitted by the presser foot, namely the presser foot acting force, so that the thickness of the cloth can be automatically judged according to the corresponding relation between the size of the presser foot acting force and the thickness of the cloth.
Description
[ field of technology ]
The utility model belongs to the technical field of embroidery equipment, and particularly relates to an embroidery machine.
[ background Art ]
The traditional presser foot is either arranged on the needle bar and moves along with the needle bar; or a presser foot driver is arranged separately, and the presser foot driver is driven by a presser foot cam on the main shaft.
The utility model discloses an electronic presser foot device of an embroidery machine, which comprises a presser foot assembly, a motor, a connecting rod assembly and a presser foot driver arranged on a driver shaft, wherein the presser foot assembly comprises a presser foot bar, a presser foot connected with the lower end of the presser foot bar and a presser foot driving block connected with the upper end of the presser foot bar, the presser foot driving block is provided with a presser foot guide hole I matched with a needle bar, a presser foot guide hole II matched with the presser foot bar is arranged on a bottom cross beam, the presser foot driver is used for driving the presser foot driving block, the connecting rod assembly comprises a first connecting rod and a second connecting rod, an output shaft of the motor is connected with one end of the first connecting rod, the other end of the first connecting rod is connected with one end of the second connecting rod, and the other end of the second connecting rod is connected with the presser foot driver. Because the motor is used for directly controlling the stroke and the motion law of the presser foot, the motion law of the presser foot can be switched according to different cloth thicknesses and patterns.
The electronic presser foot can switch the presser foot stroke according to the thickness of the cloth. However, the operator is usually required to judge according to the thickness of the cloth, the workload is increased, and the error is easy to occur. In order to realize automatic judgment of the thickness of the cloth, the acting force of the presser foot can be used as the basis (after the thickness is increased, the presser foot is required to complete the originally set stroke and can continue to downwards and the acting force on the needle plate is correspondingly increased).
[ utility model ]
Aiming at the defects in the prior art, the technical problem to be solved by the utility model is to provide the embroidery machine with the electronic presser foot, which can automatically sense the acting force of the presser foot so as to realize automatic judgment of the thickness of cloth.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the embroidery machine with the electronic presser foot comprises a machine head provided with the electronic presser foot mechanism and a needle plate arranged below the machine head, wherein the electronic presser foot mechanism comprises a presser foot and a presser foot driving motor for driving the presser foot to move up and down, the needle plate is correspondingly provided with a spring plate capable of moving up and down below the presser foot, and a pressure sensor is arranged below the spring plate and acts with the spring plate to sense the pressure transmitted by the presser foot when the presser foot is pressed down.
Preferably, the needle plate is provided with an elastic piece mounting groove, and the elastic piece is arranged in the elastic piece mounting groove.
Preferably, the spring plate is made of metal.
Preferably, the elastic sheet includes a connection part integrally connected with the needle plate and a separation part separated from the needle plate.
Preferably, the elastic sheet is of a rectangular structure, and a through hole matched with the needle bar is formed in the free end of the separation part.
Preferably, the needle plate is provided with an annular part taking the projection of the needle bar as the center, the connecting part is connected with the edge of the annular part, and the free end of the separating part is positioned in the center area of the annular part.
Preferably, the free end of the separating part and the corresponding end of the spring plate mounting groove are of arc structures.
Preferably, the pressure sensor is provided with a pressure sensing piece.
Preferably, the pressure sensor is provided with a screw hole, a fixing hole is formed in the needle plate, and the screw hole and the fixing hole are connected with a fixing screw.
Preferably, the embroidery machine is provided with a control board, and the pressure sensor is in communication connection with the control board.
According to the technical scheme, the needle plate is correspondingly provided with the elastic piece capable of moving up and down below the presser foot, the pressure sensor is arranged below the elastic piece and acts with the elastic piece to sense the pressure transmitted by the presser foot when the presser foot is pressed down, namely the acting force of the presser foot, so that the thickness of the cloth can be automatically judged according to the corresponding relation between the acting force of the presser foot and the thickness of the cloth.
These features and advantages of the present utility model will be disclosed in detail in the following detailed description and the accompanying drawings.
[ description of the drawings ]
The utility model is further described with reference to the accompanying drawings:
FIG. 1 is a schematic view of an embroidery machine with an electronic presser foot;
FIG. 2 is a schematic view of the structure of the needle bar frame of the embroidery machine;
FIG. 3 is an exploded view of an embroidery machine with an electronic presser foot;
FIG. 4 is a schematic diagram of the installation of a pressure sensor;
reference numerals: the needle bar frame 11, the needle bar 111, the presser foot 112, the middle cross beam 113, the presser foot guide seat 114, the felt 115, the linear bearing 116, the lower guide rail 117, the flat pad 118, the machine head body 12, the color changing slide rail 13, the shuttle box assembly 200, the needle plate 21, the elastic piece 211, the elastic piece mounting groove 212, the shuttle box 22, the pressure sensor 23 and the fixing screw 231.
[ detailed description ] of the utility model
The technical solutions of the embodiments of the present utility model will be explained and illustrated below with reference to the drawings of the embodiments of the present utility model, but the following embodiments are only preferred embodiments of the present utility model, 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 utility model.
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 utility model. 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 utility model.
In the present utility model, 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 utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present utility model, 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.
Referring to the embroidery machine shown in fig. 1 to 4, the embroidery machine includes a head 100 to which an electronic presser foot mechanism is mounted and a bobbin case assembly 200 provided below the head, the bobbin case assembly 200 including a bobbin case 22 and a needle plate 21, the needle plate 21 being fixed to a front side of the bobbin case 22.
The machine head 100 comprises a machine head body 12 and a needle bar frame 11, a color changing sliding rail 13 is arranged between the machine head body 12 and the needle bar frame 11, a needle bar 111 and a presser foot 112 are arranged on the needle bar frame 11, and a machine head main shaft, a needle bar driver for driving the needle bar and a presser foot driver for driving the presser foot are arranged on the machine head body. The needle bar driver is driven by a machine head spindle, a cam connecting rod mechanism is arranged between the needle bar driver and the machine head spindle, and the presser foot driver is driven by a presser foot driving motor to form an electronic presser foot mechanism. Namely, the electronic presser foot is adopted, and the specific transmission structure can adopt the existing structure in the prior art.
The electronic presser foot can switch the presser foot stroke according to the thickness of the cloth. However, the operator is usually required to judge according to the thickness of the cloth, the workload is increased, and the error is easy to occur. In order to realize automatic judgment of the thickness of the cloth, the acting force of the presser foot can be used as the basis (after the thickness is increased, the presser foot is required to complete the originally set stroke and can continue to downwards and the acting force on the needle plate is correspondingly increased). Therefore, the automatic judgment of the cloth thickness can be realized by sensing the acting force of the presser foot.
As shown in fig. 3 and 4, in this embodiment, the needle plate 21 is provided with a spring plate 211 that can move up and down correspondingly under the presser foot, and a pressure sensor 23 is provided under the spring plate, and the pressure sensor acts on the spring plate to sense the pressure transmitted by the presser foot when the presser foot is pressed down.
Further, the needle plate 21 is provided with a spring plate mounting groove 212, the spring plate 211 is arranged in the spring plate mounting groove, a part of the spring plate 211 is connected with the spring plate mounting groove and separated from the presser foot acting part and the spring plate mounting groove, so that after the presser foot is pressed onto the spring plate, the contact part of the spring plate and the presser foot can move downwards, and the pressure sensor can accurately sense the pressure transmitted by the presser foot.
Specifically, the elastic sheet 211 is made of metal, and thus has a large elastic deformation. The elastic piece 211 includes a connection portion integrally connected with the needle plate 21 and a separation portion separated from the needle plate. Taking a rectangular structure as an example, the elastic sheet is integrally connected with the needle plate at one end, the rest part is separated from the needle plate, the contact part with the presser foot is arranged at the free end, and the free end is provided with a through hole matched with the needle bar. Therefore, after the presser foot is pressed onto the elastic sheet, the contact part of the elastic sheet and the presser foot can move downwards immediately to act on the pressure sensor.
With reference to the prior art, the needle plate is provided with an annular part taking the projection of the needle bar as the center, the connecting part is connected with the edge of the annular part, and the free end of the separating part is positioned in the center area of the annular part.
Furthermore, the free end of the separating part and the corresponding end part of the spring piece mounting groove are of arc structures. Can avoid the damage to the cloth caused by the sharp structure.
In this embodiment, the pressure sensor 23 is provided with a pressure sensing piece, that is, the pressure sensing piece is used to sense the acting force of the presser foot, which is a relatively mature and low-cost pressure sensor. The pressure sensor is provided with a screw hole, a fixing hole is formed in the needle plate, and the screw hole and the fixing hole are connected with a fixing screw 231 to fix the pressure sensor below the needle plate.
It will be appreciated that other types of pressure sensors may be employed.
The embroidery machine is provided with a control board for control, and it is understood that the pressure sensor 23 is in communication connection with the control board, so that the control board can judge the thickness of the cloth according to the pressure information (preloaded) and re-control the electronic presser foot changing stroke (preloaded).
For guiding the presser foot, a presser foot guide seat 114 is provided on the needle bar frame 11, and a linear bearing 116 matched with the presser foot guide is provided on the presser foot guide seat 114. The linear bearing converts the existing sliding friction into rolling friction, so that the friction force is reduced, and the presser foot operates more smoothly. And a flexible cleaning sleeve for removing pollutants on the presser foot bar is also arranged.
In this embodiment, the flexible cleaning sleeve is a dust-proof sleeve arranged at two ends of the linear bearing, the dust-proof sleeve is similar to a sealing ring and is made of flexible materials such as rubber, and the linear bearing is usually arranged. When the presser foot bar moves, cotton threads, fibers and the like adsorbed on the presser foot bar can be scraped, the presser foot bar cannot be damaged, and the condition that the presser foot bar is blocked with the linear bearing is avoided.
It is understood that a flexible cleaning sleeve can be additionally arranged outside the dust-proof sleeve to clean the presser foot bar.
Further, a felt 115 having lubricant adsorbed thereon is laid on the top surface of the presser foot guide base 114, and a through hole is provided at a position corresponding to the linear bearing for the presser foot bar to pass through, and the felt lubricates the presser foot bar and simultaneously eliminates contaminants on the presser foot bar.
Referring to the prior art, the middle part of the needle bar frame is provided with a middle cross beam 113, an upper guide hole is arranged on the middle cross beam to be in guide fit with the presser bar, and a guide hole matched with the needle bar is arranged on the middle cross beam. The presser foot bar is externally sleeved with a presser foot spring, the upper end of the presser foot spring is abutted against the outer edge of the bottom end of the upper guide hole, and a flat pad 118 abutted against the bottom end of the presser foot spring is correspondingly arranged above the through hole. The flat pad can increase the contact area with the felt, and the felt loss and frequent replacement caused by direct impact of the presser foot spring on the felt are avoided.
In order to fix the presser foot guide holder, a positioning pin and a fastening screw are arranged between the presser foot guide holder 114 and the needle bar frame bracket. The needle bar frame is positioned by the positioning pin, and then the presser foot is guided and fixed on the needle bar frame by the fastening screw. In addition, a lower guide rail 117 is provided and fixed to the front side of the needle bar frame bottom by fastening screws together with the presser foot guide holder.
While the utility model has been described in terms of specific embodiments, it will be appreciated by those skilled in the art that the utility model 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 utility model are intended to be included within the scope of the appended claims.
Claims (10)
1. The embroidery machine with the electronic presser foot comprises a machine head provided with the electronic presser foot mechanism and a needle plate arranged below the machine head, wherein the electronic presser foot mechanism comprises a presser foot and a presser foot driving motor for driving the presser foot to move up and down.
2. The embroidery machine with electronic presser foot according to claim 1, wherein the needle plate is provided with a spring piece mounting groove, and the spring piece is provided in the spring piece mounting groove.
3. The embroidery machine with electronic presser foot as claimed in claim 2, wherein the elastic sheet is made of metal.
4. The embroidery machine with electronic presser foot according to claim 3, wherein the elastic piece comprises a connecting portion integrally connected with the needle plate and a separating portion separated from the needle plate.
5. The embroidery machine with electronic presser foot according to claim 4, wherein the elastic sheet has a rectangular structure, and the free end of the separating portion is provided with a through hole for engaging with the needle bar.
6. The embroidery machine with electronic presser foot according to claim 5, wherein the needle plate is provided with a ring-shaped portion centered on the projection of the needle bar, the connecting portion is connected to the edge of the ring-shaped portion, and the free end of the separating portion is located in the center area of the ring-shaped portion.
7. The embroidery machine with electronic presser foot according to claim 5, wherein the free ends of the separating portions and the corresponding ends of the spring piece mounting grooves are arc structures.
8. Embroidery machine with electronic presser foot according to claim 1, characterized in that the pressure sensor is provided with a pressure sensitive plate.
9. The embroidery machine with electronic presser foot according to claim 1, wherein the pressure sensor is provided with a screw hole, the needle plate is provided with a fixing hole, and the screw hole and the fixing hole are connected with a fixing screw.
10. The embroidery machine with electronic presser foot as claimed in claim 1, wherein the embroidery machine is provided with a control board, and the pressure sensor is communicatively connected with the control board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321794491.2U CN220284388U (en) | 2023-07-07 | 2023-07-07 | Embroidery machine with electronic presser foot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321794491.2U CN220284388U (en) | 2023-07-07 | 2023-07-07 | Embroidery machine with electronic presser foot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220284388U true CN220284388U (en) | 2024-01-02 |
Family
ID=89326820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321794491.2U Active CN220284388U (en) | 2023-07-07 | 2023-07-07 | Embroidery machine with electronic presser foot |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220284388U (en) |
-
2023
- 2023-07-07 CN CN202321794491.2U patent/CN220284388U/en active Active
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