JP2726407B2 - Sewing device for testing the sewability of textiles - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sewing apparatus for determining and testing the sewability of a woven fabric. More specifically, the present invention relates to a sewing apparatus which enables the naked eye to identify the degree of sewability of a woven fabric, that is, the degree of puckering occurring at a sewing line when two woven fabrics are sewn on one another. About.

[0002]

BACKGROUND OF THE INVENTION Generally,
The fabric sample used when measuring the sewability of the fabric,
It is a rectangular woven piece approximately 10 cm wide and 60 cm long. The two rectangular fabric sample pieces are stacked and sewn with a sewing machine along the center line in the longitudinal direction. Until the sewing is completed, a force is applied to the front end of the fabric sewn by the sewing machine by an operator's hand. The degree of packer ring that appears on a fabric sample thus sewn is usually visually identified by AATCC test method 88B. According to the AATCC test method 88B, the degree of packer ring is classified into 5 grades, and these grades are compared with a sewing fabric sample to determine the sewability of the fabric. For example, AATC
C Grade 1 in 88B of the test method is a case where packer ring occurs very seriously, and class 5 is a case where packer ring does not occur at all after sewing. Grade 2, Grade 3, and Grade 4 are set.

[0003] In the sewing test of the fabric by the conventional method, a conventional pedal-type sewing machine is used to apply a force to the fabric by hand to pull the sewn fabric. It is very difficult to apply a constant force. That is, the degree of pulling differs depending on the operator, and it is almost impossible to apply the same force for each measurement even if the workers are the same. Further, since the sewing speed changes depending on the pressure applied to the pedal, sewing cannot be performed at a constant speed. In this case, it is impossible to accurately test and determine the sewability of the woven fabric.

It is an object of the present invention to provide a sewing apparatus for enabling accurate testing and determination of the sewability of a woven fabric.

Another object of the present invention is to provide a sewing apparatus capable of sewing at a constant speed by applying a constant pulling force to two superposed fabrics when measuring and determining the sewing property of the fabric. Is to provide.

It is another object of the present invention to provide a sewing apparatus capable of conveniently and quickly testing and judging the sewability of a woven fabric.

Another object of the present invention is to find sewing conditions under which packer ring does not occur, and to use the sewing conditions when manufacturing an actual sewn product.
It is an object of the present invention to provide a sewing apparatus for testing the sewability of a woven fabric.

[0008]

In the sewing apparatus for testing the sewability of a woven fabric according to the present invention, a table is set in a lateral direction so as to be flush with a table of a conventional sewing machine.
On this table, a first rail is placed on the fabric supply side as viewed from the sewing machine, and a first fabric biting device movable along the first rail is provided.
A second rail is mounted, and a second fabric biting device movable along the second rail is provided. The first and second rails are arranged so as to form a mirror image around the sewing machine. For example, the first and second rails are fixed to the table by fixing means so as to be arranged in a straight line. A first roller guide is provided on the starting point side of the first rail. A first string extends from the first fabric biting device toward the first rail starting point, and the first string is hung on the first roller guide and extends below the table. A first weight is provided at a lower end of the first string. Therefore, the first fabric biting device is pulled toward the starting point of the first rail by the weight of the first weight. On the other hand, a second roller guide is provided on the end point side of the second rail. A second string extends from the second fabric biting device toward the end of the second rail, and the second string is hung on a second roller guide and extends below the table. Second
A second weight is provided at the lower end of the string. Therefore, the second fabric biting device is pulled toward the end point of the second rail by the weight of the second weight. The weights of the first weight and the second weight are equal. Before the sewing is started, the front ends of the two superposed fabric sample pieces are clamped by the second fabric biting device, and the rear ends thereof are clamped by the first fabric biting device. Since the weight of the first weight and the weight of the second weight are the same, a force in the opposite direction of the same magnitude acts on the two superposed fabric pieces. Therefore, when the fabric piece is sewn, that is, when the two fabric pieces are moved to the end point side of the second rail by the gear under the sewing support of the sewing machine, a uniform pulling force acts on the fabric piece. Sewing is performed while sewing.

In the sewing apparatus according to the present invention, the first and second sewing machines are also provided.
By arranging the rails in an S-shape, it is also possible to obtain a fabric sample piece that is S-shaped by uniform force.

[0010] In the sewing apparatus of the present invention, the first fabric biting device may have a first plate and a first leaf spring, and the rear end of the fabric piece may be clamped between the first plate and the first leaf spring. The second fabric biting device may have a similar structure. Furthermore, a first stopper for releasing the first leaf spring and a cushioning member for reducing the impact of the first fabric biting device may be fixed to the first rail. Similarly, a second stopper for releasing the second leaf spring of the second fabric biting device that clamps the front end of the fabric piece may be fixed to the second rail.

Further, a control box for electrically operating the sewing apparatus of the present invention may be provided. In addition, a pedal switch that can be operated by the operator's foot may be provided, or a fabric guide may be provided so that the piece of fabric is not detached from the sewing position.

[0012] In the sewing apparatus of the present invention, a sensor member having two sensors may be fixed to the front surface of the sewing machine with bolts. The first sensor detects when a work cloth piece enters under the work piece, notifies the worker of the work piece, and puts the sewing apparatus in a work preparation state. When the work piece enters under the work piece, the second fabric biting device is operated so that the front end of the fabric is automatically clamped to the second fabric biting device.

Therefore, according to the present invention, a woven piece to be sewn is pulled with a constant tensile force by using a mechanical device.
A sewing device for maintaining a sewing speed in a constant state and accurately measuring and determining the sewing property of a piece of woven fabric is provided.

[0014]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

FIG. 1 is a schematic perspective view of a sewing apparatus according to the present invention.

As shown in FIG. 1, in the sewing apparatus of the present invention, a table (1) is installed in a horizontal direction by using a conventional sewing machine (12), and a straight line or a curved line is provided on the left and right sides thereof. A pair of first and second rails (4, 5), which are variably fixed in the form, are installed in series. The first rail <br/> (4) is disposed such that the first fabric chewing device (2) moves along the first rail (4) for clamping the rear end portion of the fabric, the second Les A second fabric biting device (3) for clamping the front end of the fabric is installed on the tool (5) so as to move along the second rail (5). This sewing device is capable of performing sewing with a sewing machine when a double-layered fabric whose front and rear ends are fixed by the above-mentioned two biting devices (2, 3) is moved by a uniform force. This is for visually examining and determining the rear packer ring.

The sewing apparatus according to the present invention is provided with a woven fabric supply unit provided on the right side of the sewing machine (see FIG. 2).
And a fabric pull-out portion (see FIG. 7) installed on the left side thereof.

FIG. 2 is a perspective view schematically showing a fabric supply section of the sewing apparatus according to the present invention.

First, on the integrally formed table (1), the first cloth holding device (2) for clamping the rear end of the cloth is moved from the table (1) so that it can reciprocate. The first rail (4), which is maintained at a slight distance, is supported by a plurality of fixing means (7).

The first rail (4) is preferably made of a thin steel material, and is preferably easy to bend when forming a curve like an S-shape. The same applies to)). The right (starting) end of the first rail (4) can be fixed by fixing means located at the corners of the table (1), this fixing means having a common knowledge in the art. Are known or easily conceived by those skilled in the art.

At the left end (end point side) of the first rail (4), the first hook (27) of the first fabric biting device (2) is provided .
(Fig. 3) the first stop was holding the fabric in response to contact
A first stopper (15) for releasing the leaf spring (26) (FIG. 3) is fixed. First stopper (1
5), as shown in FIG. 5, an insertion groove (51) into which the first rail (4) can be inserted is formed, and the first rail (4) is inserted into the insertion groove (51). After that, a fixing bolt (50) for fixing the first stopper (15) is also provided.

As shown in FIG. 3, the first plate (21) of the first fabric biting device (2) for clamping the rear end of the fabric.
Has four first bearing rollers (22, 23, 24,
25), so that the first plate (2
1) does not directly contact the surface of the table (1), only the first bearing rollers (22, 23, 24, 25) contact the surface of the table (1). By the rotation and rolling of the first bearing rollers, the frictional force when the first fabric biting device (2) reciprocates can be minimized. A first string fixing member (18) is provided on the first plate (21) to fix the first string (10). The first string (10) used here has sufficient strength, and various kinds of strings such as a thin rope can be used (this is also applied to the second string and other strings described later). Is the same). The first plate (21) is also provided with four roller support rods (31, 32, 33, 34) fixedly erected so as to form two sets, and the second bearing roller (35, 36, 37, and 38) are provided.

Second bearing rollers (35) and (36)
The first rail (4) can be inserted with some space between them, and the second bearing roller (3) can be inserted.
A gap is similarly formed between 7) and (38) so that the first rail (4) can be inserted (FIG. 1). The reason why the second bearing roller (35, 36, 37, 38) is attached to the end of the roller support rod (31, 32, 33, 34) is that the first fabric biting device (2) is provided on the first rail ( This is to minimize the frictional force when reciprocating along 4).

On the first plate (21), 2
A first leaf spring (26) for clamping (gripping) heavy fabric is provided, and an upper member (28) and a lower member (29) of the first leaf spring are formed at the tip thereof. A push pin (not shown) is inserted into a hole (30) passing through the upper and lower members (28, 29). Thereafter, the fabric is inserted between the lower member (29) and the first plate (21), and is fixed by the push pins and the upper and lower members (28, 29) of the first leaf spring. To release the fixed fabric, the first hook (27) is operated to the right. In actual sewing process, first meshing fabric viewed apparatus (2) is moved to the left side (the end point of the first rail) first hook (27) is first stopper (1
5), the first hook (27) is pushed and released later, and the first leaf spring (2) of the first fabric biting device (2) is released.
6) is released.

When the first leaf spring (26) is released by the first stopper (15), the first cloth catching device (2) which has advanced (has reached the end point of the first rail) is moved to the first position. The fabric biting device (2) returns to the original position on the right side (the starting point side of the first rail). As shown in FIGS. 1 and 2, the return of the first fabric biting device (2) is performed by the first cord (10) connected by the first string (10) via the first roller guide (8).
This is performed by the load of the weight (11). A hole is formed in the center of the first weight (11), and a first bar is inserted into the hole.
Guide (9) is inserted. 1st bar guide (9)
Are supported by bolts at the top, which could be easily implemented by those of ordinary skill in the art. First weight (11) first in order to increase or decrease the number of the first weight (11)
1 in addition to the bar guide (9) or the first bar guide (9)
In order to pull it out, the bolts supporting the first bar guide (9) may be loosened and added or removed.

When the first fabric biting device (2) is clamping the rear end of the fabric, the first weight (11) exerts a tensile force on the fabric in the direction of the starting point of the first rail (4). ing.

When the fabric is removed from the first fabric biting device (2), the weight of the first weight (11) causes the first fabric biting device (2) to be pulled toward the starting point of the first rail (4). (Return).

In order to reduce the collision force when the first fabric biting device (2) returns, a cushioning member (1) as shown in FIG.
6) may be fixed to the right end (start point side) of the first rail (4). A groove (53) is formed in the cushioning member (16), and a rail fixing member (5) is formed in the groove (53).
4) is provided. This rail fixing member (54)
Are supported (not rigidly fixed) by a set of bolts (56). The rail fixing member (54)
After inserting the first rail (4) between the groove and the groove (53),
When the fixed handle (55) is rotated clockwise, the fixed handle (55) pushes the rail fixing member (54),
The cushioning member (16) is firmly fixed to the first rail (4). A buffer projection (58) that can move in and out as indicated by an arrow is provided. The rear end of the projection (58) is elastically supported by a spring (not shown) provided inside the cushioning member (16). A notch (not shown) is formed on the surface of the projection (58) to extend a predetermined distance in the axial direction of the projection, and the tip of the fixing bolt (57) reaches the notch. The stroke of the movement of the buffer projection (58) in and out is limited. The buffer projection (58) may be solid or hollow.

As described above, the plurality of fixing means (7) fix the first rail (4) (FIG. 1). As shown in FIG. 4, in each fixing means (7), the first rail (4) is inserted into a groove (45) formed below the end of the fixing member (42) of the first rail. The first rail (4) is inserted and a set of bolt holes (4
4) is fixed by bolts. One end of the fixing bar (41) is connected to the rail fixing member (42) by a bolt (43), and the other end passes through the upper fixing member (46) and is fixed using a fixing handle (48). . When the bolt (43) is loosened, the rail fixing member (42) can rotate to some extent around the bolt (43) axis. This is the first and second rails (4,5)
When making a curved arrangement such as an S-shape, the rail fixing member (42)
Is required to be rotated to some extent around the bolt (43). The lower fixing member (47) is coupled to the table (1) at the bottom surface thereof, and is rotatably coupled to the upper fixing member (46). The reason is that when the first and second rails (4, 5) are arranged in a curved shape such as an S-shape, it is convenient to be able to change the direction of the fixed bar (41). When the fixed handle (48) is loosened, the fixed bar (41) can be slid in the longitudinal direction.
Therefore, the distance from the fixing members (46, 47) to the rail fixing member (42) can be changed. This is because it may be necessary when the first and second rails (4, 5) are arranged in a curved shape such as an S-shape.

As shown in FIG. 2, between the table (1) and the fixing means (7), a connecting bar (147) may be supported by a plurality of fixing bolts (17). .

The first roller guide (8) is connected to the first string (1).
Preferably, a ceramic roller or the like is used to minimize the frictional force with the first weight (0).
In order to move the first bar guide (9) smoothly, it is preferable to coat the center hole of the first bar guide (9) with Teflon (this is also applicable to the second roller guide (60) and other roller guides).

FIG. 7 is a perspective view schematically showing a drawing portion of a fabric of the sewing apparatus according to the present invention. The fabric drawer of FIG. 7 has a symmetrical structure similar to the fabric feeder of FIG. That is, the second rail (5) is fixed by a plurality of fixing means (7), and the second stopper (66) is fixed to the right end (start point side of the second rail) of the second rail (5). Have been. The second fabric gripping device (3) for clamping the front end of the fabric also has a symmetric structure with the first fabric gripping device (2) for clamping the rear end of the fabric . In brief, a second roller guide (60) is provided at the end point of the second rail (5), and a second bar guide (61) extends obliquely downward from the second roller guide (60). From the fabric biting device (3), the second string (6) is moved toward the end point of the second rail (5).
3) extends and is hung on the second roller guide (60). The second string (63) extends obliquely downward along the second bar guide (61), and a second weight (62) is attached to a lower end of the second string. Due to the weight of the second weight (62), the second fabric biting device (3) is pulled toward the end point of the second rail (5). The second weight (62) has a hole in the center, and the second bar guide (61) can be inserted into the hole. The upper part of the second bar guide (61) is supported by bolts or the like. This support will be easily implemented by those skilled in the art. As with the first weight (11), the number of second weights (62) can be increased or decreased as needed.
Remove the bolts and insert another second weight (62) into the second bar guide (61), or remove the second weight (62)
Can be pulled out from the second bar guide (61). However,
The same number of second weights (62) as the first weight (11) must be left.

The difference from the first fabric biting device (2) is that the second fabric biting device (3) is provided before the second fabric biting device (3).
Member (6) for pushing back to the starting point side of the second rail
Is provided. The moving member (6) is the third
And the fourth string (64, 64 ') and the third weight (76) (FIG. 8) can move left and right along the second rail (5).

FIG. 9 shows the details of the moving member (6), and FIG. 8 shows a mechanism for moving the moving member (6) and the principle of movement. As shown in FIG. 9, the moving member (6) has a plate (151) and four bearing rollers (90, 91, 92, 93) mounted on the plate (151) and rolling on the table (1). The frictional force with the table (1) during movement is minimized. Further, four roller support rods (94, 95, 96, 97) are erected at predetermined intervals on the plate (151), and these roller support rods (94, 95, 96, 97) are provided.
The bearing roller (98, 99, 100,
101) is attached. Bearing roller (98,
99, 100, 101), a predetermined gap is formed, and the second rail (5) is inserted into this gap. Bearing roller (98, 99, 100, 101)
Is in rolling contact with the second rail (5), so that the friction with the second rail (5) when the moving member (6) moves can be minimized. Further, a pin (149) is provided upright at an end of the moving member (6), and two third and fourth strings (64, 64 ') are provided in the right and left opposite directions from the pin (149).
The moving member (6) is moved to the left and right (the end point side and the start point side of the second rail (5)) by the third and fourth strings (64, 64 ') and the like. The moving mechanism and principle are shown in FIG.
It will be explained by.

The left side of FIG. 8 is the start point side of the second rail (5), and the right side is the end point side of the second rail (5). As shown in FIG. 8, one side of the moving member (6) (left side in the figure)
First, the third string (64) fixed to the second rail (5)
Subjected to a third roller guide provided on the starting point side (65), then subjected to a fourth roller guide provided on the end point side of the second rail (5) (70), further, the table (1 ) Is extended downward by being guided by a third bar guide (75) extending downward. A third weight (76) is provided at a lower end of the third string (64). A hole is formed in the third weight (76), and the third bar guide (75) is formed by the hole.
Can penetrate the third weight (76). Fourth string which is fixed to the other side of the moving member (6) (64 ') extends from the movable member (6) to the end side of the second rail (5), the
5, 6, 8 and seventh roller guide (71,72,7
3, 74) to the string fixing member (69). The string fixing member (69) is fixed to a mounting member (150) provided below the table (1). 5th
Beauty eighth roller guide (71, 73) is a fixed roller guide immovably. However, sixth and seventh roller guide (72, 74), which is fixed to the support base (79), the support base (79) is an air cylinder (78)
Is moved up and down by The support (79) is rotatably fixed at one point (81) of the mounting member (150) and is operated by a kind of lever principle. The tip of the telescopic piston (148) of the air cylinder (78) is fixed to one point (80) of the support (79).
The upper end of the air cylinder (78) is
8) is fixed to be rotatable, and the piston (14)
When (8) is lowered, the support (79) can be lowered smoothly.

Moving member (6) and second fabric biting device (3)
Are activated in the following order.

The second leaf spring (not shown) of the second fabric biting device (3) grips (clamps) the front end of the two-ply fabric, and the automatic operation switch (143) (FIG. 15). , The air cylinder (78) is first extended to move the support base (79) as a support member downward (clockwise rotation about the point (81) in FIG. 8). Then, the moving member (6) is pulled by the fourth string (64 ') and moves to the end point side of the second rail (5). At this time, the second fabric biting device (3) holding the front end of the double fabric is moved by the load of the second weight (62) (FIG. 7).
It is pulled toward the end point of the rail. Since the weight of the second weight (62) is the same as the weight of the first weight (11) (FIG. 1),
Opposite tensile forces of the same magnitude are acting before and after the fabric. Therefore, during sewing, the fabric moves while being sewn at a constant speed by the movement of the gear under the sewing support. When the second fabric biting device (3) is moved to the end of the second rail (5) and the sewing of the fabric is completed,
Activate the mover return switch (127) (FIG. 13). Then, the moving member (6) moves while pushing the second fabric biting device (3) toward the fulcrum of the second rail (5), and returns to the position shown in FIG. That is, when the moving device return switch (127) is operated, the air cylinder (7) is actuated.
8) (FIG. 8) is contracted and the support (79) is
Upward pivoting counterclockwise in, sixth and seventh roller guide Accordingly (72, 74) is moved upward. Therefore,
Since the third string (64) receives only the force of the load of the third weight (76), the moving member (6) in FIG.
Moves to the right (starting point side of the second rail) while pressing the second fabric biting device (3) (moves to the left in FIG. 8). At this time, in order to support base (79) is (counterclockwise rotation in FIG. 8) and the upper pivot, sixth and seventh roller guide (72, 74) to facilitate moving upwards, the support The other end of the platform (79) has a fourth weight having an appropriate weight.
A weight (82) is provided. As illustrated in FIG.
When the moving member (6) moves to the starting point (right end) of the second rail (5) while pressing the second fabric biting device (3),
The clamp ( second leaf spring) of the second fabric biting device (3) is released by the second stopper (66) fixed to the second rail (5), and the sewn fabric is released. By repeating such an operation, the work fabric can be continuously sewn. The principle that the moving member (6) moves left and right along the second rail (5) utilizes the principle of pulleys and levers, as shown in FIG. 8, which is well known by those skilled in the art. It is easy to understand.

The lever-type support (79) rotates, and the sixth
And when the seventh roller guide which (72, 74) is moved upward, since the fourth cord (64 ') there is a possibility that would away from the upper side of the fifth and eighth roller guide (71, 73) , the fifth and eighth roller guide (71, 73), a fourth cord (64 ') of the guide for preventing separated (not shown) may be additionally installed.

When the first and second rails (4, 5) are arranged in a straight line, the fabric is sewn in a straight line. That is, FIG.
0, two superposed fabrics (110,
111) is sewn with a linear sewing line as indicated by reference numeral (114). When the first and second rails (4, 5) are arranged in a curve, the fabric is sewn in a curve. FIG.
1 is a perspective view showing a sewing line (115) when two fabrics (112, 113) are sewn in an S-shaped curve, and FIG. 12 performs the S-shaped sewing shown in FIG. For this reason, the first and second S-shaped sewing lines are arranged in the same S-shape .
It is a top view of 2 rails (4, 5). 1st rail (4)
And the second rail (5) have the same geometrical arrangement so that they can overlap each other.

FIG. 14 is a perspective view showing the fabric guide (120). The fabric guide (120) is located at a lower portion of the sewing needle of the sewing machine, and is for preventing the fabric from moving sideways or lifting up when the double fabric is sewn. In this fabric guide (120), the center portion is a square cutout (opening) (136) so that a sewing support (hold) (not shown) can be located, Further, upper members (132, 133) for preventing the fabric from being lifted up are fixed to the inner surfaces on both sides of the fabric guide (120) by bolts (134), respectively. That is, between the upper member (132, 133) and the bottom member (131),
A slight gap is maintained, through which the fabric passes.
Since the table (1) is usually made of steel, the textile guide (1
Place 20) on the table (1) and fix both sides with magnets (135).

The electric and electromagnet control of the present invention is performed by a control box (13) shown in FIG. If the control box (13) is fixed so as to be located above the sewing machine, it is convenient for the operator to work. The control box (13) mainly includes a power switch (129) for turning on / off the power, an operation knob (knob) (128) for sewing support,
Automatic switch (126) for sewing double fabrics, emergency stop switch (125) for stopping the sewing machine in an emergency
And a sewing position adjusting switch (130) for setting the sewing position of the fabric.

Of course, according to the present invention, a pedal switch (140) that can be operated by the operator's foot can be added if necessary. The pedal switch (140) is illustrated in FIG. A pedal switch (140) is a sewing support switch (141) for operating a sewing support (holding), and a manual operation switch (1) for sewing about 3 to 5 cm of the fabric in an initial stage.
42) and an automatic operation switch (143) for automatically sewing the entire fabric after the initial sewing of about 3 to 5 cm is completed and the fabric is gripped by the second fabric biting device (3).
have.

In the present invention, as shown in FIG. 13, a sewing operation can be performed by attaching sensors (123, 124) to the front portion of the sewing machine (12). In FIG. 13, 2
Sensor member (1
4) is fixed to the front part of the sewing machine (12) by bolts (122).

The first sensor (123) senses the fabric entering under the first sensor (123) and activates the manual operation switch (142) (FIG. 15) for the operator.
This allows the machine to be in the ready state. Second
(124) senses the fabric entering the lower part of the air cylinder (not shown) when the fabric is located below the second leaf spring of the second fabric gripper (3). To operate the second fabric biting device (3).
It is for clamping the fabric by the second leaf spring. Of course, the role of the second sensor (124) can also be performed manually, but when many work pieces have to be processed, automatically clamping the fabric to the second fabric gripper (3). It is convenient because it can be done.

In general, when a product such as men's clothing is manufactured from a woven fabric by performing a sewing operation, it is very important to determine whether or not packer rings occur. Therefore, sewing conditions that do not cause packer ring must be applied to the sewing operation.
In general, the occurrence of packer ring during sewing operation is variously affected by the type of fabric, the pressure of sewing support (holding), the height of sewing teeth, the tension at the time of sewing, and the like.

The degree of packer ring of a woven fabric sample sewn according to the present invention can be visually determined by a sample sample such as AATCC test method 88B. Since the woven fabric sample piece sewn according to the present invention is sewn with a constant tensile force, sewing conditions for preventing packer ring can be easily found and set. Such sewing conditions can be applied when an actual product is manufactured.

The present invention is not limited to the above embodiment. That is, various modifications or changes to the above-described embodiment can be easily made by those having ordinary knowledge in this field, and all such modifications and changes are within the technical scope of the present invention. It is considered to be included.

[0048]

According to the sewing apparatus for testing the sewability of the present invention, the sewability of the woven fabric can be accurately tested and determined, and the pulling force of the sewn woven fabric can be maintained at a constant level. There is an effect that the sewing conditions that are not used can be measured and the sewing conditions can be used when manufacturing an actual sewing product.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view of a sewing device according to the present invention.

FIG. 2 is a perspective view schematically illustrating a fabric supply unit of the sewing apparatus according to the present invention.

FIG. 3 is a schematic perspective view of a second fabric biting device for fixing a double fabric at a rear end.

FIG. 4 is a perspective view schematically illustrating a rail fixing device according to the present invention;

FIG. 5: To release the fabric biting device of the fabric supply unit
FIG. 3 is a perspective view of a stopper fixed on the rail.

FIG. 6 is a perspective view of a cushioning member for reducing an impact when the first fabric biting device moves and stops due to a load of a first weight.

FIG. 7 is a perspective view schematically illustrating a drawing portion of a fabric of the sewing apparatus according to the present invention.

FIG. 8 is a perspective view for explaining a moving principle of a moving member operated to pull out a double fabric sewn by the sewing machine according to the present invention, for moving a fabric biting device at a front end; FIG. 4 is a perspective view schematically showing a moving principle of the moving member.

FIG. 9 is a perspective view schematically showing a moving member for moving the second fabric biting device.

FIG. 10 is a perspective view showing a state where a double woven fabric is sewn in a straight line.

FIG. 11 is a perspective view showing a state in which a double fabric is sewn in a curved (S-shaped) shape.

FIG. 12 is a plan view of rails arranged in an S-shape for performing the S-shape sewing of FIG. 11;

FIG. 13 is a perspective view schematically showing a state in which a control box according to the present invention is provided on a conventional sewing machine, and a sensor and a fabric guide are provided in a front portion of the sewing machine.

FIG. 14 is a perspective view illustrating a fabric guide.

FIG. 15 is a perspective view illustrating a pedal switch of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Table 2 1st fabric biting device 3 2nd fabric biting device 4 1st rail 5 2nd rail 6 Moving member 7 Fixing means 8 1st roller guide 9 1st bar (bar) guide 10 1st string 11 1st weight 12 Sewing machine 13 Control box 14 Sensor member 15 First stopper (stopper) 16 Buffer member 17 Fixing bolt 18 First string fixing member 21 First plate 22, 23, 24, 25 First bearing roller 26 First plate spring 27 First hook 28 the first insertion hole 31, 32, 33, 34 the roller support bar of the lower member 30 pushes the pin of the top member 29 first plate spring plate spring 35, 36, 37, 38 second bearing roller 41 fixed bar (bar) 42 rail fixing member 43 bolt 44 bolt hole 45 rail insertion groove 46 upper fixing member 7 the lower portion of the fixed member 48 fixed handle 50 fixing bolt 51 rail insertion grooves 53 rail insertion groove 54 the rail fixing member 55 fixed handle 56 fixing bolt 57 fixing bolt 58 buffer protrusion 60 second roller guide 61 second bar guide 62 second weight 63 Second string 64 Third string 64 'Fourth string 65 Third roller guide 66 Second stopper 69 String fixing member 70 Fourth roller guide 71 Fifth roller guide 72 Sixth roller guide 73 Eighth roller guide 74 Seventh roller guide 75 Bar guide 76 Third weight 77 Fixing bolt 78 Air cylinder 79 Support 82 Fourth weight 90, 91, 92, 93 Bearing roller 94, 95, 96, 97 Roller support rod 98, 99, 100, 101 Bearing roller 110 , 111, 112, 113 Fabric 114 Straight sewing line 115 S Form sewing lines 120 fabric guide 122 volts 123 first sensor 124 second sensor 125 emergency stop switch 126 automatic switch 127 actuation knob of the return switch 128 sewing support of the mobile device (presser) (knob) 129 Power switch 130 sewing position adjusting switch 131 Bottom member 132, 133 Upper member 134 Bolt 135 Magnet 140 Pedal switch 141 Sewing support switch 142 Manual operation switch 143 Automatic operation switch 147 Connecting bar 148 Piston 149 Pin 150 Mounting member 151 Plate

Claims (20)

(57) [Claims] 1. A table (1) provided to form the same plane as a table of a sewing machine (12), and a table (1) provided on a fabric supply side of the table (1) as viewed from the sewing machine (12). A first fabric (2), which is movably provided along the first rail (4) and grips a rear end of the fabric to be sewn by the sewing machine (12); A second rail (5) which is provided on the side of the table (1) from which the fabric is pulled out as viewed from the sewing machine (12) and is arranged to be a mirror image with respect to the first rail (4); A plurality of fixing means (7) for fixing the first rail (4) and the second rail (5) to the table (1), respectively; and movably provided along the second rail (5). A second fabric gripping device (3) for gripping the front end of the fabric, a first roller guide (8) provided on the starting point side of the first rail (4), A first bar guide (9) extending downward from the lower part of the first roller guide (8) at a predetermined angle; and a first bar guide (9) extending from the first fabric biting device (2) to a starting point of the first rail (4). A first string (10) that is hung on the first roller guide (8) and then extends downward by being guided by the first bar guide (9), and is attached to the end of the first string (10). A first weight (11) that is provided so as to be movable along the first bar guide (9), and pulls the first fabric biting device (2) toward the starting point of the first rail (4); A second roller guide (60) provided on the end point side of the two rails (5); a second bar guide (61) extending downward at a predetermined angle from under the second roller guide (60); (2) It extends from the fabric biting device (3) toward the end point of the second rail (5), is hung on the second roller guide (60), and is then guided by the second bar guide (61) to move downward. A second string (63) extending along the second bar guide (61), having the same weight as the first weight (11), being attached to the end of the second string (63), A second weight (62) that is movably provided and pulls the second fabric gripping device (3) toward the end point of the second rail (4); and a first fabric gripping device (2). The second fabric biting device (3)
The woven fabric held between the first weight (1)
1) and the second weight (62) are pulled in the opposite direction by a force of the same magnitude, and when the fabric is sewn according to the movement of the gear of the sewing support portion of the sewing machine (12), the woven fabric is kept constant. A sewing device for testing packer ring of a fabric, characterized in that the sewing is performed at a constant output speed and at a constant speed. 2. A rail insertion groove in which each of the fixing means (7) is engaged with the first or second rail (4, 5).
(45), a rail fixing member (42), a fixing bar (41) extending from the rail fixing member (42), and provided on the table (1). Fixing members (46, 47) fixed to the fixing members (46, 47), and the fixing members (46, 47) provided on the fixing members (46, 47) to open or fix the end side of the fixing bar (41).
And a fixing handle (48) for loosening or tightening the fixing member (46, 47) .By loosening the fixing member (46, 47) and changing the fixing position on the end side of the fixing bar (41),
The sewing apparatus according to claim 1, wherein the distance between the rail fixing member (7) and the rail fixing member (42) can be changed. 3. A first plate (21) having a first bearing roller (22, 23, 24, 25) for rolling on said table (1), said first fabric biting device (2) comprising: A first string fixing member (18) for fixing the first string (10) to the first fabric biting device (2); and a rear end of the fabric between the first plate (21). A first leaf spring (26) for gripping, and a first leaf spring (26) for holding the rear end of the fabric between the first plate (21) and the first plate (21). First hook (27) for pressing against
The sewing apparatus according to claim 1, comprising: 4. The first plate (21) has four first bearing rollers (22, 23, 24, 25), and the rotation of the first bearing rollers causes the first fabric biting device to rotate.
The sewing apparatus according to claim 3, wherein (2) moves on the table (1). 5. A plurality of roller support rods (31, 32, 33, 34) are erected at predetermined intervals on the first plate (21), and the roller support rods (31, 32, 33, 34) are Second bearing rollers (35, 36, 37, 38) are attached to the upper portion, and the first rail (4) can be inserted between the second bearing rollers (35, 36, 37, 38). A gap is formed, so that when the first fabric biting device (2) moves along the first rail (4), the second bearing roller (35, 36, 37, 38) is moved by the second bearing roller (35, 36, 37, 38). 4. The sewing device according to claim 3, wherein the sewing device rolls while contacting one rail. 6. A first stopper (15) for releasing a first hook (27) of a first leaf spring (26) of the first fabric gripping device (2) is provided on the first rail (4). The sewing apparatus according to claim 1, wherein the sewing apparatus is installed. 7. A cushioning member (1) for absorbing an impact caused by the movement of the first fabric biting device (2) on the first rail (4).
6. The sewing apparatus according to claim 1, wherein the cushioning member has a cushioning projection elastically supported by a spring means. 8. The second fabric biting device (3) is provided with the first fabric biting device (3).
2. The sewing device according to claim 1, wherein the sewing device has a structure symmetrical to the fabric biting device. 9. The second fabric biting device (3) comprises: a second plate having a third bearing roller for rolling on the table (1); A second string fixing member for fixing to the fabric biting device (3); a second roller support bar erected at predetermined intervals on the second plate; and a second roller support member provided on an upper portion of the second roller support bar. Four bearing rollers, a second leaf spring for gripping the front end of the fabric between the second plate, and a second leaf spring for gripping the front end of the fabric between the second plate And a second hook for pressing the second rail (5) against the second plate, and a gap is formed between the fourth bearing rollers so that the second rail (5) can be inserted therein.
Therefore, when the second fabric biting device (3) moves along the second rail (5), the fourth bearing roller rolls while contacting the second rail (5). The sewing device according to claim 1, wherein 10. The second plate has four fourth bearing rollers, and the rotation of the fourth bearing rollers causes the second fabric biting device (3) to rotate the table.
The sewing apparatus according to claim 9, wherein the sewing apparatus moves on (1). 11. The second rail (5) is provided with a second stopper (66) for releasing a second hook of a second leaf spring of the second fabric biting device (3). The sewing device according to claim 1, wherein 12. A moving member (6) movable along the second rail (5), the moving member (6).
Is located in front of the second fabric biting device (3) and moved to the end point side of the second rail (5).
To return to the starting point of the second rail (5).
A member for pushing the fabric biting device (3) toward the starting point of the second rail (5); and a third roller guide (65) at the starting point of the second rail (5).
A fourth roller guide (70) is provided on the end point side, and a third string (64) extends from the moving member (6).
4) first extends to the starting point side of the second rail (5) and is hung on the third roller guide (65), and then extends to the ending point side of the second rail (5) to extend the fourth roller guide. (70), and extends below the table (1). At the end of the third string (64), the moving member (6) is
The sewing device according to claim 1, further comprising a third weight (76) that is pulled toward a starting point of the rail (5). 13. A fifth roller guide (71) is further provided on an end point side of the second rail (5), and a retractable piston (148) is provided on a lower surface of the table (1).
A support member having an air cylinder (78) having a mounting member (150) and a lower end of the mounting member (150) as a lever fulcrum.
(79) is provided, and on one side of the support member (79) viewed from the lever fulcrum,
The lower end of the piston (148), the sixth roller guide (72) and the seventh roller guide (74) are mounted, the mounting member (150) is mounted with an eighth roller guide (73), and the moving member (6) is mounted. ) Extends from the fourth string (64 ').
(64 ') first extends to the end point side of the second rail (5) and is hung on the fifth roller guide (71).
, And then extend upward after being hooked on the sixth roller guide (72).
(73), and then extend downward. Then, after being hooked on the seventh roller guide (74), the mounting member (150)
When the piston (148) of the air cylinder (78) extends and pivots the support member (79) downward about the lever fulcrum, the third weight ( The moving member (6) can be moved to the end point side of the second rail (5) by overcoming the pulling force of (76), and the piston (148) of the air cylinder (78) contracts and the support When the member (79) is pivoted upward about the lever fulcrum, the moving member (6) is moved on the table (1) by the pulling force of the third weight (76). 13. The apparatus according to claim 12, wherein the apparatus can be moved to a starting point.
A sewing device as described. 14. A fourth weight (82) is fixed to the other side of the support member (79) when viewed from the lever fulcrum in order to facilitate the upward turning of the support member (79). 14. The sewing device according to claim 13, wherein 15. The moving member (6) has a plate (151) having four bearing rollers (90, 91, 92, 93), and the plate (151) has four roller support rods (90). 94
, 95, 96, 97) are erected at predetermined intervals, and rollers (98, 96, 97) are provided above these roller support rods (94, 95, 96, 97), respectively.
99, 100, 101) and these rollers (98, 99, 100,
14. The sewing device according to claim 13, wherein the second rail is inserted between the sewing machines. 16. The method according to claim 1, wherein the first and second rails are arranged in an S-shaped curve so as to form an S-shaped sewing line. Sewing device. 17. The fixing device according to claim 17, wherein the S-shaped curved array is provided as the fixing means.
17. The sewing apparatus according to claim 16, wherein the sewing is performed by (7). 18. A power switch (129) for turning on / off the power of the sewing machine, a knob (128) for operating a sewing support (hold) up and down, an automatic switch (126) for sewing a fabric, A control box (13) comprising an emergency stop switch (125) for stopping the sewing machine in an emergency and a sewing position adjusting switch (130) for setting a sewing position of the fabric. Item 1
A sewing device as described. 19. A first sensor (123) for detecting a fabric entering under itself and informing an operator, and detecting the second leaf spring by sensing a fabric entering below itself. 14. A sewing apparatus according to claim 13, wherein a second sensor (124) for operating and gripping the leading end of the fabric by the second fabric biting device (3) is provided on a front portion of the sewing machine. . 20. A fabric guide (120) is provided on the table (1) in the sewing area where the sewing needle of the sewing machine (12) moves up and down.
A square opening (136) is formed in the center of the fabric guide (120) for positioning a sewing support (holding), and both sides are provided to allow the fabric to be lifted from the table (1). 2. A sewing machine according to claim 1, wherein said upper member is fixed by bolts and said fabric guide is fixed to said table by magnets. apparatus.