KR102389993B1 - Stitched device - Google Patents

Abstract

The present invention relates to a sewing machine. One aspect of the stitching device according to an embodiment of the present invention includes: a base plate on which upper and lower bar materials stacked up and down are supported on the upper surface; a pair of upper and lower sensing units for sensing the edge positions of the upper and lower bars, respectively; a stitching unit including a needle for sewing while ascending and descending in order to sew the edges of the upper and lower rods; Upper and lower rotation units for rotating the upper and lower rods supported on the upper surface of the base plate, respectively, in a state in which the needle descends and is inserted into the upper and lower rods; a transfer unit for intermittently linearly transferring the upper and lower rods supported on the upper surface of the base plate in a state where the needle elevates and is spaced apart from the upper and lower rods by a preset transfer distance; and determining the shape of the edges of the upper and lower rods according to the edge positions of the upper and lower rods sensed by the upper and lower sensing units, respectively, so that the edges of the upper and lower rods are sewn by the stitching unit. a control unit for controlling the operation of the transfer unit and the upper and lower rotation units so that the linear movement and rotation of the upper and lower bar materials are alternately made; includes

Description

Stitching Device{STITCHED DEVICE}

The present invention relates to a sewing machine.

In general, in order to bond the rods, in a state in which the two rods to be joined overlap each other, the operator sews the rods while transporting them so that the rims of the two rods are matched with each other. Recently, various methods for automating this have been proposed. Referring to the prior patent documents, in the prior art, in a state in which a plurality of upper rollers and a plurality of lower rollers rotating about a rotational axis in the horizontal direction are positioned to face each other up and down, respectively, the outer peripheral surface of each of the upper surface and the lower surface of the upper bar Rotates in contact with the lower surface of the bar material, and by rotating each of the upper and lower rollers at a different number of revolutions, the bar material is transferred while changing its direction according to the shape of its rim.

In the sewing device according to the prior art, in the case of two bars having a relatively thick thickness, the upper roller in contact with the upper surface of the upper bar and the lower roller when in contact with the lower surface of the lower bar are adjusted by adjusting the number of rotations of the rim It can be transferred while changing the direction according to the shape. However, in the case of a relatively thin bar material, even if the upper roller and the lower roller rotate, substantially only a portion of the upper bar and lower bar in contact with the upper and lower rollers changes in direction, but the rest is not changed and may be crumpled. can Furthermore, the rotation of the upper and/or lower bar material according to the rotation of the upper roller and the lower roller by an angle set by the friction force between the upper and lower bar materials may not be made. Therefore, in the prior art, in the case of a bar material having a relatively thin thickness or a bar material having a large frictional force according to the material, accurate transfer is not made so that the edges of the two bar materials are matched.

Japanese Patent Application Laid-Open No. 1995-096091 (Name: Sewing device for the perimeter of the rug) Republic of Korea Patent No. 2093407 (Name: Matt Stitching Device) Republic of Korea Patent No. 2110255 (Name: Matt Stitching Device) Republic of Korea Public Utility Model No. 2000-0019309 (Name: Quilting)

An object of the present invention is to solve the problems caused by the prior art as described above, and an object of the present invention is to provide a stitching device configured to be transferred by changing the direction according to the shape of the edge of the bar material.

One aspect of the stitching device according to an embodiment of the present invention for achieving the above object is a base plate on which upper and lower bars stacked up and down are supported on the upper surface; a pair of upper and lower sensing units for sensing the edge positions of the upper and lower bars, respectively; a stitching unit including a needle for sewing while ascending and descending in order to sew the edges of the upper and lower rods; Upper and lower rotation units for rotating the upper and lower rods supported on the upper surface of the base plate, respectively, in a state in which the needle descends and is inserted into the upper and lower rods; a transfer unit for intermittently linearly transferring the upper and lower rods supported on the upper surface of the base plate in a state where the needle elevates and is spaced apart from the upper and lower rods by a preset transfer distance; and determining the shape of the edges of the upper and lower rods according to the edge positions of the upper and lower rods sensed by the upper and lower sensing units, respectively, so that the edges of the upper and lower rods are sewn by the stitching unit. a control unit for controlling the operation of the transfer unit and the upper and lower rotation units so that the linear movement and rotation of the upper and lower bar materials are alternately made; includes

In one aspect of the embodiment of the present invention, the upper and lower rotation units rotate the upper and lower bar materials around the needle, respectively.

In one aspect of the embodiment of the present invention, the upper rotation unit includes an upper rotation plate that rotates about the needle in a state where its lower surface is selectively contacted with the upper surface of the upper bar material, the lower rotation unit comprising: and a lower rotation plate rotating around the needle in a state in which the upper surface is selectively in contact with the lower surface of the lower bar material.

In one aspect of the embodiment of the present invention, in the center of the upper rotation plate, an upper through opening for preventing interference with the needle ascending and descending in order to sew the edges of the upper and lower bar materials is formed, and the lower rotation In the center of the plate, a lower through-opening is formed to prevent interference with the needle moving up and down in order to sew the edges of the upper and lower bar materials.

In one aspect of the embodiment of the present invention, the upper rotation unit may include: an upper support member on which the upper rotation plate is rotatably supported; and an upper driving source providing a driving force to rotate the upper rotating plate with respect to the upper supporting member. It further includes, wherein the lower rotation unit, the lower support member is rotatably supported by the lower rotation plate; and a lower driving source providing a driving force to rotate the lower rotating plate with respect to the lower supporting member. further includes

In one aspect of the embodiment of the present invention, the upper support member may include: an upper support plate to which the upper rotation plate is coupled; and a plurality of upper ball bearings interposed between the upper rotating plate and the upper supporting plate to perform rolling motion with respect to the upper supporting plate so that the upper rotating plate is rotatable. Including, wherein the lower support member, The lower support plate to which the lower rotation plate is coupled; and a plurality of lower ball bearings interposed between the lower rotating plate and the lower supporting plate to perform rolling motion such that the lower rotating plate is rotatable with respect to the lower supporting plate. includes

One aspect of the embodiment of the present invention further includes an elevating unit for elevating the upper rotary unit.

One aspect of the embodiment of the present invention, it is disposed between the upper and lower bar material further comprises a partition plate partitioning both.

In one aspect of the embodiment of the present invention, the partition plate is at least a portion of the upper and lower rotation units and up and down in the range in which interference with the needle moving up and down in order to sew the edges of the upper and lower bar materials is prevented. It is disposed between the upper and lower rods so as to overlap in the direction.

In the stitching device according to the embodiment of the present invention, the bar is rotated so that the rotating plate facing each of the bars is sewn with the rim of the bar by the needle performing the stitching. In particular, in this embodiment, the rotation plate rotates around the needle, and interference due to frictional forces interacting in the course of rotation of the rod material is prevented by the partition plate disposed between the rod materials. Therefore, according to the embodiment of the present invention, it can be expected that the rotation of the bar material according to the shape of the edge more accurately and the sewing on the edge of the bar material.

1 is a plan view schematically showing a stitching device according to an embodiment of the present invention.
Fig. 2 is a sectional view taken along line A-A' of Fig. 1;

Hereinafter, the configuration of an embodiment of a stitching device according to an embodiment of the present invention will be described in more detail with reference to the accompanying drawings.

1 is a plan view schematically showing a stitching apparatus according to an embodiment of the present invention, and FIG. 2 is a sectional view taken along line A-A' of FIG. 1 .

1 and 2, the stitching device according to an embodiment of the present invention includes a base plate 100, upper and lower sensing units 200A and 200B, a stitching unit 300, and an upper and lower rotation unit ( 400A) 400B, a transfer unit 500 and a control unit C. In addition, this embodiment may further include an elevating unit 600 and a partition plate 700 .

More specifically, the base plate 100 is a place where the upper and lower bar materials MA (MB) to be sewn are supported on the upper surface thereof. The upper and lower bar materials MA and MB have their edges sewn and fixed by a thread, and the edges are sewn while being transported while being supported on the upper surface of the base plate 100 .

Meanwhile, in the present embodiment, the communication opening 110 is formed in the base plate 100 . The communication opening 110 is formed by cutting a part of the base plate 100 . Substantially, the communication opening 110 and a needle 310 to be described later pass through in a lowered state for stitching, and at the same time, the lower rotation unit 400B, and a lower rotation plate 410B to be described substantially later, move through the lower rod. It is a place exposed for contact with the lower surface of the material MB.

In addition, the upper and lower sensing units 200A and 200B detect the positions of the edges of the upper and lower bar materials MA and MB, respectively. Substantially, the upper and lower sensing units 200A and 200B determine the position of the edges of the upper and lower bar materials MA and MB according to the transfer of the upper and lower bar materials MA and MB. can be said to detect. For example, as the upper and lower sensing units 200A and 200B, a linear scale that moves linearly according to the shape in contact with the edges of the upper and lower bar materials MA and MB may be used. can

In this embodiment, the upper and lower sensing units 200A and 200B are respectively disposed in front of the stitching unit 300 in the direction in which the upper and lower rods MA and MB are transported. Accordingly, one edge of the upper and lower bar materials MA (MB) whose position values are detected by the upper and lower sensing units 200A and 200B is, as will be described later, the stitching unit 300 It will be said that it precedes the other side of the rim of the upper and lower bar materials (MA) (MB) sewn by the .

Substantially, the upper and lower sensing units 200A and 200B are the edges of the upper and lower bar materials MA and MB detected according to the transfer of the upper and lower bar materials MA and MB. The position of the edge of the upper and lower bar materials MA (MB) is sensed from the variation of the position value. In this embodiment, the upper and lower sensing units 200A and 200B set the position values of the edges of the upper and lower bar materials MA (MB) to 0, (+) with respect to the preset reference line L1. It is detected as a value or (-) value. For example, the upper and lower sensing units 200A and 200B are the upper and lower bar materials MA and MB according to the transfer of the edges of the upper and lower bar materials MA and MB. It is possible to detect a value that moves in a straight line in conjunction with the position movement. And when the position of the edge of the upper and lower bar materials MA (MB) corresponding to the straight section is set to the reference line L1, the shape of the edge of the upper and lower bar materials MA (MB) is a straight line or The upper and lower sensing units 200A and 200B set the position values of the edges of the upper and lower bar materials MA (MB) to 0, (+) values with respect to the reference line L1, depending on whether it is a curved section. Alternatively, it can be detected as a (-) value. When the upper and lower sensing units 200A and 200B move to the left in FIG. 1 with respect to the reference line L1 by the transfer of the upper and lower bar materials MA (MB) (FIG. 1) ⓐ part of ) is set to a (+) value, and when moving to the right in FIG. 1 around the reference line L1 (part ⓑ in FIG. 1) can be set to a (-) value.

The stitching unit 300 sews the edges of the upper and lower bar materials MA and MB. In this embodiment, the stitching unit 300 includes a needle 310 for sewing while ascending and descending in order to sew the edges of the upper and lower bar materials MA and MB. Substantially, the needle 310 descends and is inserted into the upper and lower rods MA (MB), and ascends and descends to be spaced apart from the upper and lower rods MA and MB. The needle 310 is raised and lowered, and the edges of the upper and lower bar materials MA and MB are sewn with a thread while repeating insertion and separation into the upper and lower bar materials MA and MB. And when the needle 310 descends, it is positioned on the communication opening 110 .

Next, the upper and lower rotation units 400A and 400B are the upper surfaces of the base plate 100 in a state in which the needle 310 descends and is inserted into the upper and lower bar materials MA and MB. The upper and lower rods MA and MB supported on the poles are rotated, respectively. Substantially, the rotation of the upper and lower rods MA and MB by the upper and lower rotation units 400A and 400B causes the edges of the upper and lower rods MA and MB to be stitched together. This is to be sewn by the unit 300 . In this embodiment, in particular, the upper and lower rotation units 400A and 400B respectively rotate the upper and lower rods MA and MB around the needle 310 .

The upper rotation unit 400A includes an upper rotation plate 410A, an upper support member, and an upper driving source 440A. In addition, the lower rotation unit 400B includes a lower rotation plate 410B, a lower support member, and a lower driving source 440B. Since the respective configurations of the upper and lower rotation units 400A and 400B are substantially the same, only the upper rotation unit 400A will be described below.

The upper rotation plate 410A rotates around the needle 310 while its lower surface is selectively in contact with the upper surface of the upper bar material MA. For example, the upper rotation unit 400A may be formed in a disk shape in which its lower surface is selectively contacted with the upper surface of the upper bar material MA. In the center of the upper rotation plate 410A, an upper through-opening 411A for preventing interference with the needle 310 that elevates and descends in order to sew the edges of the upper and lower rods MA and MB. is formed Substantially, the upper through-opening 411A may communicate vertically with the communication opening 110 .

In addition, the upper rotation plate 410A is rotatably supported on the upper support member. For example, the upper support member may include an upper support plate 420A and a plurality of upper ball bearings 430A. The upper rotation plate 410A is coupled to the upper support plate 420A. For example, the upper support plate 420A may be formed in the same shape as the upper rotation plate 410A. And the upper ball bearing 430A is interposed between the upper rotation plate 410A and the upper support plate 420A so that the upper rotation plate 410A is rotatable with respect to the upper support plate 420A. do.

The upper driving source 440A provides a driving force to rotate the upper rotation plate 410A with respect to the upper support member. For example, as the upper driving source 440A, a motor fixed to the upper supporting plate 420A and providing a driving force to the upper rotating plate 410A may be used. However, the upper driving source 440A provides a driving force to the upper rotating plate 410A only in a state in which the needle 310 descends and is inserted into the upper and lower rods MA and MB.

The transfer unit 500 transfers the upper and lower bars MA and MB supported on the upper surface of the base plate 100 . In this embodiment, the upper and lower bar materials MA supported on the upper surface of the base plate 100 in a state in which the needle 310 is raised and separated from the upper and lower bar materials MA (MB). (MB) is intermittently linearly transferred by a preset transfer distance. The transfer unit 500 may, for example, pressurize the upper bar material MA in the transfer direction while reciprocating along an elliptical movement trajectory. Therefore, when the upper bar material MA is pressure-feed by the transfer unit 500 , the lower bar material MB sewn and fixed to the upper bar material MA together with the upper bar material MA is compressed

More specifically, the transfer unit 500, the base plate 100 for pressure feeding of the upper and lower rods MA and MB at an initial position in contact with the upper surface of the upper rod MA. moves to the transfer position in a direction parallel to the upper surface of Accordingly, the distance between the initial position and the transport position may be defined as the transport distance. And the transfer unit 500 is moved to the initial position after being spaced apart from the upper surface of the upper bar material (MA) in the transfer position. Therefore, it can be said that the transfer of the upper and lower bar materials MA (MB) by the transfer unit 500 is made only during the time during which the transfer unit 500 moves from the initial position to the transfer position. have. And in the movement of the transfer unit 500 from the initial position to the transfer position, the stitching unit 300, substantially the needle 310 is raised and lowered and spaced apart from the upper and lower rods MA (MB). This is done only in the condition Therefore, substantially, the stitch interval in the process of being sewn by the stitching unit 300 is set by the distance that the conveying unit 500 conveys the upper and lower bar materials MA and MB.

And the control unit (C), the upper and lower bars (MA) (MA) ( The transfer and rotation of MB) and the operation of the transfer unit 500 and the stitching unit 300 are controlled so that the upper and lower bar materials MA and MB are sewn. In other words, the control unit (C), the upper and lower sensing units (200A) and (200B) so that the edges of the upper and lower bar materials (MA) (MB) are sewn by the stitching unit 300 . The upper and lower bar materials MA (MA) ( MB) controls the operation of the transfer unit 500 and the upper and lower rotation units 400A and 400B so that the linear movement and rotation of the rotation is made alternately.

In more detail, the control unit C is configured to control the position of the edges of the upper and lower bar materials MA and MB detected by the upper and lower sensing units 200A and 200B, respectively, substantially, the The shapes of the edges of the upper and lower bars MA and MB are determined from successive changes in the position values of the edges of the upper and lower bars MA and MB, respectively. That is, the control unit C, when the position values of the upper and lower bar materials MA (MB) sensed by the upper and lower sensing units 200A and 200B, respectively, are 0, the upper and lower rods The edge of the wealth MA (MB) is determined as a straight section. And the control unit (C), the position value of the upper and lower bar materials (MA) (MB) sensed by the upper and lower sensing units 200A and 200B, respectively, is a (+) value or a (-) value On the other hand, it is determined that the edges of the upper and lower bar materials MA (MB) are curved sections.

Next, the control unit (C), when the position value of the edge of the upper and lower bar materials (MA) (MB) sensed by the upper and lower sensing units (200A, 200B), respectively, is 0, that is, When the edges of the upper and lower rods MA and MB are straight sections, the upper and lower rods MA and MB are transported by a predetermined distance by the transfer unit 500 while the stitching is performed. The unit 300 controls so that the edges of the upper and lower bar materials MA and MB are sewn together.

In this case, substantially, the control unit C controls the operations of the stitching unit 300 and the transfer unit 500 to be alternately performed. That is, the control unit C moves from the initial position to the transfer position in a state in which the transfer unit 500 is in contact with the upper surface of the upper bar material MA, that is, the upper and lower portions by the transfer distance. While transferring the bar material MA (MB), the needle 310 is elevated and controlled to be spaced apart from the upper and lower bar materials MA (MB). And the control unit (C), the transfer unit 500 is spaced apart from the upper surface of the upper bar material (MA), while moving from the transfer position to the initial position, the needle 310 is lowered for stitching. It is controlled to be inserted into the upper and lower bars (MA) (MB).

On the other hand, in the control unit (C), the position value of the edge of the upper and lower bar materials (MA) (MB) sensed by the upper and lower sensing units 200A and 200B, respectively, is a (+) value or ( -) value, that is, when the edges of the upper and lower bar materials MA (MB) are curved sections, the upper and lower bar materials MA by the upper and lower rotation units 400A and 400B ) (MB) are controlled to rotate respectively. Of course, only the position value of the edge of any one of the upper and lower bar materials MA (MB) sensed by any one of the upper and lower sensing units 200A and 200B is a (+) value or (-) In the case of a value, the control unit C will control to rotate only one of the upper and lower bar materials MA and MB by any one of the upper and lower rotation units 400A and 400B.

More specifically, the control unit (C), the stitching unit 300, that is, in a state in which the needle 310 descends for stitching and is inserted into the upper and lower rods MA and MB, The upper and lower rods MA and MB are controlled to be rotated by the upper rotation unit 400A and the lower rotation unit 400B. In addition, as described above, the control unit (C), the transfer unit 500 will be spaced apart from the upper surface of the upper bar material (MA) to move from the transfer position to the initial position. And substantially, the control unit (C), the transfer unit 500, the transfer distance to transfer the upper and lower bar material (MA) (MB) and the upper and lower sensing units (200A, 200B) The upper and lower rotating units 400A (400A) ( 400B), the rotation values of the upper and lower bars MA and MB may be set.

On the other hand, the elevating unit 600 elevates the upper rotation unit 400A. Elevation of the upper rotary unit 400A by the elevating unit 600 supports the upper and lower bar materials MA (MB) on the upper surface of the base plate 100 or the base plate 100 ) may be made depending on whether the process of removing from the upper surface or whether the rotation of the upper bar material MA by the upper rotation unit 400A is required.

In addition, this embodiment may further include a partition plate 700 . The partition plate 700 is disposed between the upper and lower bar materials MA and MB to partition both. Accordingly, a phenomenon in which the upper and lower rods MA and MB are rotated by the upper and lower rotation units 400A and 400B interfere with mutual rotation can be prevented. For example, when the upper and lower rotation units 400A and 400B rotate at the same time or either one rotates, the upper and lower rods MA and MB are rotated by the partition plate 700 . Interference can be avoided. To this end, the partition plate 700 rotates the upper and lower parts in a range in which interference with the needle 310 that moves up and down is prevented in order to sew the edges of the upper and lower bar materials MA and MB. It is disposed between the upper and lower bar materials MA (MB) so as to overlap at least a portion of the units 400A and 400B in the vertical direction.

Within the scope of the basic technical idea of the present invention, many other modifications are possible for those of ordinary skill in the art, and the scope of the present invention should be interpreted based on the appended claims. will be.

100: support plate 200A, 200B: sensing unit
300: stitching unit 400A, 400B: rotating unit
410A, 410B: rotation plate 420A, 420B: support plate
430A, 430B: Ball bearing 440A, 440B: Drive source
500: transfer unit 600: elevating unit
700: compartment plate C: control unit

Claims (9)

The upper and lower bar materials (MA) (MB) stacked up and down are supported on the upper surface of the base plate 100;
a pair of upper and lower sensing units 200A and 200B for respectively sensing the edge positions of the upper and lower rods MA and MB;
Stitching unit 300 including a needle 310 for sewing while ascending and descending in order to sew the edges of the upper and lower bar materials (MA) (MB);
In a state in which the needle 310 descends and is inserted into the upper and lower rods MA and MB, the upper and lower rods MA and MB supported on the upper surface of the base plate 100 are removed, respectively. Rotating upper and lower rotating units (400A) (400B);
The needle 310 elevates and lifts the upper and lower rods MA (MB) supported on the upper surface of the base plate 100 in a state in which they are spaced apart from the upper and lower rods MA (MB). a transfer unit 500 for intermittently linearly transferring by a set transfer distance; and
The upper and lower bar materials MA (MB) sensed by the upper and lower sensing units, respectively, so that the edges of the upper and lower bar materials MA (MB) are sewn by the stitching unit 300. The transfer unit 500 so that the linear movement and rotation of the upper and lower bar materials MA (MB) are alternately determined by determining the shape of the edges of the upper and lower bar materials MA (MB) according to the edge position, respectively. ) and a control unit (C) for controlling the operation of the upper and lower rotation units (400A, 400B); including,
The upper rotation unit 400A includes an upper rotation plate 410A that rotates around the needle 310 while its lower surface is in selective contact with the upper surface of the upper bar material MA,
The lower rotation unit 400B is a stitching device including a lower rotation plate 410B that rotates around the needle 310 in a state in which the upper surface is in selective contact with the lower surface of the lower bar material MB.
The method of claim 1,
The upper and lower rotation units (400A, 400B) are stitching devices for rotating the upper and lower bar materials (MA) (MB) around the needle (310), respectively.
delete The method of claim 1,
In the center of the upper rotation plate 410A, an upper through-opening 411A for preventing interference with the needle 310 elevating and descending in order to sew the edges of the upper and lower bar materials MA (MB). is formed,
In the center of the lower rotation plate 410B, a lower through-opening 411B for preventing interference with the needle 310 elevating and descending in order to sew the edges of the upper and lower bar materials MA (MB). The stitching device in which is formed.
The method of claim 1,
The upper rotation unit 400A,
an upper support member on which the upper rotation plate 410A is rotatably supported; and
an upper driving source (440A) providing a driving force to rotate the upper rotating plate (410A) with respect to the upper supporting member; further comprising,
The lower rotation unit 400B,
a lower support member on which the lower rotation plate 410B is rotatably supported; and
a lower driving source 440B providing a driving force to rotate the lower rotating plate 410B with respect to the lower supporting member; Stitching device further comprising a.
6. The method of claim 5,
The upper support member,
an upper support plate 420A to which the upper rotation plate 410A is coupled; and
a plurality of upper ball bearings (430A) interposed between the upper rotating plate (410A) and the upper supporting plate (420A) and performing rolling motion such that the upper rotating plate (410A) is rotatable with respect to the upper supporting plate (420A); including,
The lower support member,
a lower support plate 420B to which the lower rotation plate 410B is coupled; and
a plurality of lower ball bearings (430B) interposed between the lower rotating plate (410B) and the lower supporting plate (420B) and performing rolling motion such that the lower rotating plate (410B) is rotatable with respect to the lower supporting plate (420B); Stitching device comprising a.
The method of claim 1,
Stitching device further comprising an elevating unit 600 for elevating the upper rotating unit 400A.
8. The method according to any one of claims 1, 2 and 4 to 7,
Stitching device further comprising a partition plate 700 disposed between the upper and lower bars (MA) (MB) to partition both.
9. The method of claim 8,
The partition plate 700, the upper and lower rotating units ( A stitching device disposed between the upper and lower rods MA and MB so as to overlap at least a portion of 400A) and 400B in the vertical direction.

Images