CN216338298U - Sewing machine and seam detection device thereof - Google Patents
Sewing machine and seam detection device thereof Download PDFInfo
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- CN216338298U CN216338298U CN202123252794.5U CN202123252794U CN216338298U CN 216338298 U CN216338298 U CN 216338298U CN 202123252794 U CN202123252794 U CN 202123252794U CN 216338298 U CN216338298 U CN 216338298U
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Abstract
The utility model discloses a sewing machine and a seam detection device thereof. The bone seam detection device comprises a transmission shaft, a connecting rod, a baffle, a pressing wheel and a detection device. The baffle and the connecting rod are fixed on the transmission shaft, and the pressing wheel is rotatably connected to the connecting rod. The preset detection point of the baffle is positioned in the detection area of the detection device so as to detect the motion condition of the preset detection point through the detection device. In the radial direction, the distance between the axis line of the pinch roller and the center line of the transmission shaft is smaller than the distance between the preset detection point and the center line of the transmission shaft. In the seam detection device of the sewing machine, because the distance between the preset detection point and the central line of the transmission shaft is greater than the distance between the axial lead of the pressing wheel and the central line of the transmission shaft, the height variation amplitude of the pressing wheel is smaller than that of the preset detection point based on the lever amplification principle, so that the tiny seams are amplified, and the seam position can be more accurately judged by the detection device.
Description
Technical Field
The utility model relates to the technical field of sewing equipment, in particular to a seam detection device of a sewing machine and the sewing machine.
Background
At present, for the process on the clothes, a seam is formed at the joint of adjacent fabrics, the thread of a sewing machine is positioned at the seam, and the seam has certain width for ensuring firmness. In many automatic machines, the seam is directly detected by a distance sensor, but the position of a fine seam cannot be accurately determined in the vibration of many sewing machines and the garment process.
Therefore, how to improve the accuracy of the judgment of the position of the bone seam is a technical problem that needs to be solved by the technicians in the field at present.
SUMMERY OF THE UTILITY MODEL
In view of the above, an object of the present invention is to provide a seam detection device for a sewing machine, which can improve the accuracy of seam position determination. Another object of the present invention is to provide a sewing machine including the above-mentioned seam detection device, which can improve the accuracy of seam position judgment.
In order to achieve the purpose, the utility model provides the following technical scheme:
a sewing machine seam detection device comprises a transmission shaft, a connecting rod, a baffle, a pressing wheel and a detection device;
the baffle and the connecting rod are fixed on the transmission shaft, and the pressing wheel is rotationally connected to the connecting rod;
the preset detection point of the baffle is positioned in the detection area of the detection device, so that the movement condition of the preset detection point is detected by the detection device;
in the radial direction, the distance between the axis of the pinch roller and the center line of the transmission shaft is smaller than the distance between the preset detection point and the center line of the transmission shaft.
Preferably, the detection device is a distance detection device, and the preset detection point is located right above or right below the detection range of the distance detection device.
Preferably, the transmission shaft is fixedly sleeved with a mounting wheel, the outer peripheral surface of the mounting wheel comprises a mounting plane, and the baffle is fixedly connected to the mounting plane.
Preferably, be equipped with on the baffle along the perpendicular to the axial extension's of transmission shaft baffle bar hole, the baffle passes through baffle bar hole fixed connection in mounting plane.
Preferably, the device further comprises a push rod, a push rod driver and an elastic piece;
the push rod is fixed on the transmission shaft;
the output end of the push rod driver is arranged separately from the push rod, and the push rod is pushed to swing so as to enable the transmission shaft to rotate along a preset driving direction;
the elastic piece is connected to the transmission shaft, and the elasticity of the elastic piece enables the transmission shaft to have a movement trend opposite to the preset driving direction.
Preferably, the transmission shaft is fixedly sleeved with a mounting wheel, and the push rod and the baffle are fixedly connected to the mounting wheel.
Preferably, the push rod and the baffle are fixedly connected to the outer circumferential surface of the mounting wheel.
Preferably, the peripheral face of installation wheel includes the mounting plane, be equipped with on the baffle along the perpendicular to the baffle bar hole of the axial extension of transmission shaft, the baffle pass through baffle bar hole fixed connection in mounting plane.
Preferably, still include the release link, the release link includes the go-between and is fixed in the connecting rod of go-between, the elastic component is connected the connecting rod, the go-between cup joints and is fixed in the transmission shaft.
Preferably, a connecting hole is axially and penetratingly formed in the connecting ring, the connecting hole is a strip-shaped groove which takes the center line of the transmission shaft as the center and extends along the circumferential direction, and the connecting ring is fixedly connected to the mounting wheel through the connecting hole.
A sewing machine comprises a seam detection device
The utility model provides a seam detection device of a sewing machine. The baffle and the connecting rod are fixed on the transmission shaft, and the pressing wheel is rotatably connected to the connecting rod. The preset detection point of the baffle is positioned in the detection area of the detection device so as to detect the motion condition of the preset detection point through the detection device. In the radial direction, the distance between the axis line of the pinch roller and the center line of the transmission shaft is smaller than the distance between the preset detection point and the center line of the transmission shaft.
In the seam detection device of the sewing machine, because the distance between the preset detection point and the central line of the transmission shaft is greater than the distance between the axial lead of the pressing wheel and the central line of the transmission shaft, the height variation amplitude of the pressing wheel is smaller than that of the preset detection point based on the lever amplification principle, so that the tiny seams are amplified, and the seam position can be more accurately judged by the detection device.
The sewing machine provided by the utility model comprises the sewing machine seam detection device, and the sewing machine seam detection device can improve the accuracy of judging the seam position.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a first perspective view of a seam detecting device of a sewing machine according to a first embodiment of the present invention;
FIG. 2 is a second orientation structure of a first embodiment of a seam detecting device of a sewing machine according to the present invention;
FIG. 3 is a first partial structure view of a first embodiment of a seam detecting device of a sewing machine according to the present invention;
FIG. 4 is a second partial structural view of a first embodiment of a seam detecting device of a sewing machine according to the present invention;
FIG. 5 is a schematic view of a lever comprising a baffle, a transmission shaft and a connecting rod according to a first embodiment of the seam detecting device of the sewing machine of the present invention.
Reference numerals:
the transmission shaft 2 and the check ring 21;
a baffle 3, a baffle strip-shaped hole 31;
a pinch roller 4;
a detection device 5;
the main support 6, the fabric support 61, the detection piece support 62, the driving piece support 63 and the main support
A frame bearing 64;
mounting wheels 7, push rods 71;
an elastic member 8;
the reset rod 9, a connecting ring 91, a connecting hole 92 and a connecting rod 93;
a push rod driver 10, a top block 101.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The core of the utility model is to provide a seam detection device of a sewing machine, which can improve the accuracy of judging the seam position. The other core of the utility model is to provide a sewing machine comprising the seam detection device of the sewing machine, and the seam detection device of the sewing machine can improve the accuracy of judging the seam position.
In the first embodiment of the seam detection device of the sewing machine provided by the present invention, please refer to fig. 1 to 5, which includes a transmission shaft 2, a connecting rod 1, a baffle 3, a pressing wheel 4 and a detection device 5. The transmission shaft 2 is rotatably connected to the main bracket 6 through a main bracket bearing 64. The baffle 3 and the connecting rod 1 are fixed on the transmission shaft 2. The pinch roller 4 is rotatably connected to the connecting rod 1, and specifically, the pinch roller 4 and the transmission shaft 2 are respectively connected to two ends of the connecting rod 1. The pressure wheel 4 is embodied as a bearing.
The preset detection point of the baffle 3 is positioned in the detection area of the detection device 5 so as to detect the movement condition of the preset detection point through the detection device 5. The preset detection point may be specifically located at a point on a side line of the free end of the baffle 3 away from the transmission shaft 2, or may be a set point at another position on the baffle 3.
In the radial direction, the distance between the axis of the pinch roller 4 and the center line of the transmission shaft 2 is smaller than the distance between the preset detection point and the center line of the transmission shaft 2. As shown in figure 5, the connecting rod 1 and the baffle 3 form a lever structure relative to the transmission shaft 2, when the fabric is used, the fabric is positioned below the pinch roller 4, the height change of the axial lead of the pinch roller 4 is the same as the height change of the lowest point of the pinch roller 4, which is in contact with the fabric, and the height change condition of the fabric under the pinch roller 4 can be amplified by amplifying the height change condition of the axial lead of the pinch roller 4.
In the seam detection device of the sewing machine, because the distance between the preset detection point and the central line of the transmission shaft 2 is greater than the distance between the axial lead of the pressing wheel 4 and the central line of the transmission shaft 2, based on the lever amplification principle, the height variation amplitude of the pressing wheel 4 is smaller than that of the preset detection point, so that the tiny seam is amplified, and the detection device 5 can more accurately judge the seam position.
Further, the detection device 5 is a distance detection device, and may be specifically a photoelectric sensor. The detecting device 5 is provided on the detecting member holder 62. The preset detection point is positioned right above or right below the detection range of the distance detection device, and the direction relation between the fabric and the pinch roller 4 is also in an up-down relation, so that the height change relation between the preset detection point and the pinch roller 4 can be conveniently determined by arranging the distance detection device and the preset detection point up and down. Of course, in other embodiments, the detection device 5 may also be a camera, and the height variation of the preset detection point is determined by further analyzing the captured image by the controller.
Further, the transmission shaft 2 is fixedly sleeved with an installation wheel 7, the peripheral surface of the installation wheel 7 comprises an installation plane, and the baffle 3 is fixedly connected to the installation plane. By providing mounting surfaces on the mounting wheels 7 to connect the baffle 3, assembly of the baffle 3 with the drive shaft 2 is facilitated.
Further, be equipped with on baffle 3 along the baffle bar hole 31 of the axial extension of perpendicular to transmission shaft 2, baffle 3 passes through baffle bar hole 31 fixed connection in mounting plane, the mounted position of the adaptability regulation baffle 3 on the installation wheel 7 of being convenient for.
Further, the sewing machine seam detecting device further comprises a push rod 71, a push rod driver 10 and an elastic member 8. The push rod driver 10 is arranged on a driver carrier 63. The push rod 71 is fixed to the transmission shaft 2. Specifically, the elastic member 8 is a tension spring. The output end of the push rod driver 10 is disposed separately from the push rod 71, and the push rod 71 is pushed to swing so as to rotate the transmission shaft 2 in a preset driving direction. Specifically, the push rod driver 10 is an air cylinder or a linear motor, an output end of the push rod driver 10 is fixedly provided with a top block 101, and the push rod 71 is pushed through the top block 101. The elastic member 8 is connected to the transmission shaft 2, and the elastic force of the elastic member 8 causes the transmission shaft 2 to have a movement tendency opposite to the preset driving direction.
Push rod driver 10 can promote transmission shaft 2 and rotate, specifically makes pinch roller 4 lifting, after putting the surface fabric at pinch roller 4, push rod driver 10 resets, and elastic component 8 can make pinch roller 4 push down the surface fabric, and through elastic component 8's setting, pinch roller 4 can laminate the surface fabric all the time, and adaptability is along with its lower surface fabric change height.
Further, the push rod 71 and the baffle 3 are both fixedly connected to the mounting wheel 7, so that the baffle 3 and the push rod 71 can be assembled together conveniently. Of course, in other embodiments, the push rod 71 and the baffle 3 may be directly fixed to the mounting wheel 7.
Furthermore, the push rod 71 and the baffle 3 are fixedly connected to the outer peripheral surface of the mounting wheel 7, so that the occupation of the axial space of the transmission shaft 2 can be reduced.
Further, this sewing machine seam detection device still includes release link 9, and release link 9 includes go-between 91 and the connecting rod 93 that is fixed in go-between 91, and connecting rod 93 is connected to elastic component 8, and go-between 91 cup joints and is fixed in transmission shaft 2, specifically, go-between 91 and elastic component connect respectively at the both ends of connecting rod 93. Compare in the direct connection elastic component 8 in transmission shaft 2, through the setting of release link 9, make things convenient for being connected of elastic component 8 and transmission shaft 2 more.
Furthermore, a connection hole 92 is axially formed in the connection ring 91 in a penetrating manner, the connection hole 92 is a strip-shaped groove extending in the circumferential direction around the center line of the transmission shaft 2, and the connection ring 91 is fixedly connected to the mounting wheel 7 through the connection hole 92. The elastic force provided by the elastic member 8 can be adjusted by adjusting the angle at which the coupling hole 92 is coupled to the mounting wheel 7.
The sewing machine seam detection device in the embodiment has the following working principle:
in an initial state, the cylinder pushes the push rod 71, the push rod 71 drives the transmission shaft 2 to rotate along a preset driving direction, and the pressing wheel 4 is lifted. After the fabric is placed under the pinch roller 4, the cylinder returns, and the reset rod 9 drives the transmission shaft 2 to rotate along the reverse direction of the preset driving direction under the driving of the elastic reset force of the elastic piece 8, so that the bottom of the pinch roller 4 is tightly attached to the fabric. When the fabric moves forwards, the pressing wheel 4 also rotates relative to the connecting rod 1. When a fabric seam slides through the lower part of the pressing wheel 4, the pressing wheel 4 drives the connecting rod 1 to swing, the transmission shaft 2 rotates along the reverse direction of the preset driving direction, the transmission shaft 2 drives the baffle 3 to move, and the detection device 5 detects the height change condition of the preset detection point of the baffle 3 based on the lever amplification effect and can correspondingly judge the position of the seam.
In addition to the seam detection device of the sewing machine, the utility model also provides the sewing machine, the sewing machine comprises the seam detection device of the sewing machine, particularly the seam detection device of the sewing machine provided in any one of the embodiments, and the beneficial effects can be correspondingly referred to the embodiments. The structure of other parts of the sewing machine is referred to the prior art, and the description is omitted.
It will be understood that when an element is referred to as being "secured" to another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
The terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the utility model and for simplicity in description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the utility model. Furthermore, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The sewing machine and the seam detection device thereof provided by the utility model are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (11)
1. A sewing machine seam detection device is characterized by comprising a transmission shaft (2), a connecting rod (1), a baffle (3), a pressing wheel (4) and a detection device (5);
the baffle (3) and the connecting rod (1) are fixed on the transmission shaft (2), and the pressing wheel (4) is rotatably connected to the connecting rod (1);
a preset detection point of the baffle (3) is positioned in a detection area of the detection device (5) so as to detect the motion condition of the preset detection point through the detection device (5);
in the radial direction, the distance between the axis of the pinch roller (4) and the center line of the transmission shaft (2) is smaller than the distance between the preset detection point and the center line of the transmission shaft (2).
2. Sewing machine seam detection device according to claim 1, characterized in that said detection means (5) are distance detection means, said predetermined detection point being located directly above or directly below the detection range of said distance detection means.
3. The sewing machine seam detection device according to claim 1 or 2, wherein a mounting wheel (7) is fixedly sleeved on the transmission shaft (2), the outer peripheral surface of the mounting wheel (7) comprises a mounting plane, and the baffle (3) is fixedly connected to the mounting plane.
4. The sewing machine seam detection device according to claim 3, wherein the baffle (3) is provided with a baffle strip-shaped hole (31) extending in an axial direction perpendicular to the transmission shaft (2), and the baffle (3) is fixedly connected to the mounting plane through the baffle strip-shaped hole (31).
5. The sewing machine seam detection device according to claim 1 or 2, further comprising a push rod (71), a push rod driver (10) and an elastic member (8);
the push rod (71) is fixed on the transmission shaft (2);
the output end of the push rod driver (10) is separated from the push rod (71), and the push rod (71) is pushed to swing so that the transmission shaft (2) rotates along a preset driving direction;
the elastic piece (8) is connected to the transmission shaft (2), and the elastic force of the elastic piece (8) enables the transmission shaft (2) to have a movement trend opposite to the preset driving direction.
6. The sewing machine seam detection device according to claim 5, characterized in that a mounting wheel (7) is fixedly sleeved on the transmission shaft (2), and the push rod (71) and the baffle (3) are fixedly connected to the mounting wheel (7).
7. Sewing machine seam detection device according to claim 6, characterized in that said push rod (71) and said baffle (3) are fixedly attached to the outer peripheral surface of said mounting wheel (7).
8. The sewing machine seam detection device according to claim 6, wherein the outer peripheral surface of the mounting wheel (7) comprises a mounting plane, the baffle (3) is provided with a baffle strip-shaped hole (31) extending in an axial direction perpendicular to the transmission shaft (2), and the baffle (3) is fixedly connected to the mounting plane through the baffle strip-shaped hole (31).
9. The sewing machine seam detection device according to claim 6, further comprising a reset rod (9), wherein the reset rod (9) comprises a connection ring (91) and a connection rod (93) fixed to the connection ring (91), the elastic member (8) is connected to the connection rod (93), and the connection ring (91) is sleeved and fixed to the transmission shaft (2).
10. The sewing machine seam detection device according to claim 9, wherein a connection hole (92) is axially formed in the connection ring (91) in a penetrating manner, the connection hole (92) is a strip-shaped groove extending in a circumferential direction around a center line of the transmission shaft (2), and the connection ring (91) is fixedly connected to the mounting wheel (7) through the connection hole (92).
11. A sewing machine characterized by comprising the sewing machine seam detection device according to any one of claims 1 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123252794.5U CN216338298U (en) | 2021-12-22 | 2021-12-22 | Sewing machine and seam detection device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123252794.5U CN216338298U (en) | 2021-12-22 | 2021-12-22 | Sewing machine and seam detection device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216338298U true CN216338298U (en) | 2022-04-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123252794.5U Active CN216338298U (en) | 2021-12-22 | 2021-12-22 | Sewing machine and seam detection device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216338298U (en) |
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2021
- 2021-12-22 CN CN202123252794.5U patent/CN216338298U/en active Active
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