JPH0641677U - Stacker device for sewing machine - Google Patents

Abstract

(57) [Abstract] [Purpose] It is possible to stack a large number of sewn cloths that are stacked on a cloth hanging table in a correct state without being affected by an increase in the stacking quantity. PROBLEM TO BE SOLVED: To provide a stacker device for a sewing machine having a cloth hanging table. According to the present invention, in a stacker device in which a cloth hanging table 4 for stacking sewn cloths W can be brought closer to and separated from a cloth feeding downstream side end of a sewing machine table, a blowing direction of an air blowing device 12 is set. On the downstream side of the cloth feed and directed downward by a predetermined angle, the cloth hanging table 4 is
It is characterized in that a drive mechanism 6 for lowering according to the thickness of the cloth W stacked on the table 4 is provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a stacker device for a sewing machine, and more particularly, to a stacker device for a sewing machine that uses air to stack cloths sent from the sewing machine on a cloth hanging table.

[0002]

[Prior art]

 Generally, the cloth sewn by the sewing machine is stacked on the cloth hanging table of the cloth receiving table provided on the downstream side of the cloth feeding in the sewing machine, and a predetermined amount of the cloth is stored and then transferred to the next process. . Conventionally, in order to stack the cloth on the cloth pedestal, the portion of the cloth sewn with the sewing machine that hangs downward from the cloth feed-out side end of the sewing machine table is woven by the cloth presser plate provided on the sewing machine side. It is pressed and clamped on the end surface of the hanging table on the sewing machine side, and the air force blown obliquely upward from below the sewing table is blown to the lower surface side of the cloth, and the cloth is laid on the cloth hanging table while being inverted by the action of this air. The cloth hanging table is gradually separated from the sewing machine side as the stacking amount of the cloth is increased, and the cloth is stacked on the cloth hanging table according to the increased amount. Has been done. (See Japanese Utility Model Publication No. 60-38467)

[0003]

[Problems to be solved by the device]

 However, although the above-mentioned ones can be dropped and stacked on the cloth hanging table while reversing the cloths by the action of the blowing air, the cloths may fall in a state where the cloths are not stretched flat. As the stacking amount increases, the cloth surface of the uppermost layer stacked on the cloth hanging table becomes higher than the position of the cloth surface initially stacked, which changes the falling condition of the cloth. Then, the positions of the cloths to be stacked are gradually displaced with the change, and the length of the hanging part which overlaps the end face on the sewing machine side of the cloth hanging table is lengthened, and the weight of the cloths in this portion is increased. There was a problem that the stacked fabrics lost their balance, the load collapsed, and the fabric naturally slipped from the hanging table.

The present invention is proposed in view of the above problems, and an object of the present invention is to make a cloth to be stacked on a cloth hanging table in a cloth receiving table always constant without being affected by an increase in the stacking amount. Can be correctly stacked on the cloth hanging table in this state, and it is possible to reliably prevent the stacked cloth from becoming uneven due to an increase in the stacking amount, or from falling naturally from the cloth hanging table due to the collapse of the load. An object of the present invention is to provide a stacker device for a sewing machine that can be used.

[0005]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention provides a cloth hanging table on the lower side of the cloth feeding downstream of the sewing machine table, and hangs down from the sewing machine table by the end surface of the cloth hanging table on the sewing machine side and the cloth presser plate provided on the sewing machine. The cloth is squeezed to separate the cloth hanging table from the sewing machine side according to the thickness of the cloth, and air is blown against the cloth to invert the cloth and stack it on the cloth hanging table. In the stacker device for the sewing machine, the air blowing direction to the cloth is directed to the downstream side of the cloth feed and downward by a predetermined angle, and a drive mechanism for lowering the cloth hanging table according to the stacking amount of cloth is provided. It is a feature.

[0006]

[Action]

 According to the above configuration, the air blowing direction is directed downward by a predetermined angle so that the cloth can be smoothly rotated in the shortest path with respect to the cloth hanging table and the cloth can be unfolded after reversing by using this wind force. By doing so, the cloth can be forcibly stacked without being wavy or wrinkled, and the cloth can be stacked straight and flat.

The cloth hanging table separates from the sewing machine side as the cloth stacking amount increases, and the driving mechanism lowers the cloth stacking amount by the same amount. Since the cloths stacked on the cloth hanging table can be stacked in a constant state due to the combination of the operation and the lowering operation, the cloths are misaligned with respect to the cloth hanging table and the natural movement due to the collapse of the load occurs. It is possible to prevent slipping.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A stacker device for a sewing machine according to the present invention will be described based on embodiments of the drawings. FIG. 1 is an overall perspective view showing an example of a sewing machine equipped with the present invention, and FIG. 2 is a front view showing a main part thereof. The sewing machine M is roughly divided into a sewing machine 1 for sewing cloth, a sewing machine table 2 on which the cloth to be sewn is placed, a leg portion 3 for supporting the sewing machine table 2, and a motor M1 for driving the sewing machine 1. It is configured.

Below the cloth feeding downstream side of the sewing machine table 2, a cloth receiving table S having a cloth hanging table 4 for temporarily stacking the cloths after sewing is arranged, and the cloth receiving table S is The cloth hanging table 4 and a cylindrical support 5 for supporting the cloth hanging table 4 are provided. The cloth support S, a drive mechanism 6 built in the cylindrical support 5, and the drive mechanism 6 are controlled. The stacker device is composed of the controller 10 for the sewing machine, the cloth pressing rod 7 provided on the side of the sewing machine M, the cloth pressing plate 8, the cloth detecting means 9, and the air blowing device 12.

The cloth hanging table 4 has a cushioning rubber 4b attached to the end of the sewing table 2 on the side of the sewing table 2 and has a structure as shown in detail in FIG. 3 and is movable in the horizontal and vertical directions. For horizontal movement, a horizontal position adjusting mechanism 11 utilizing the already known technology of Japanese Utility Model Publication No. 60-38467 is provided, and the cloth hanging table 4 is arranged so as to be close to and separated from the cloth feeding side end of the sewing machine table 2. Has been done.

That is, the horizontal position adjusting mechanism 11 allows the block 11a fixed to the cylindrical column 5 to slidably penetrate the support rod 11b fixed to the cloth hanging table 4, and the support rod 11b to the coil spring. 11c is fitted over the cloth hanging table 4 so that the cloth hanging table 4 is always biased toward the sewing machine table 2 while the brake rod 11f provided with an eccentric wheel 11d (cam) and a knob 11e is provided. The support rod 11b is provided on the lower side of the support rod 11b so as to be orthogonal and rotatable, and the rotation of the brake rod 11f is urged in one direction by a tension spring 11g so that the peripheral surface of the eccentric wheel 11d is always rotated. The support rod 11b is pressed against and engaged with the peripheral surface of the support rod 11b to prevent inadvertent horizontal movement of the cloth hanging table 4, and the knob 11e is moved to the coil spring 11 When the eccentric ring 11d and the support rod 11b are disengaged from each other when rotating in a direction against the bias of c, the cloth hanging table 4 is moved closer to the sewing machine M by the bias of the coil spring 11c. It is done like this.

The drive mechanism 6 is composed of a ball nut 6a fixed to an upper portion of the cylindrical column 5, a ball screw 6b screwed to the ball nut 6a, and a step motor 6c for rotating the ball screw 6b. The stepping motor 6c is driven through the controller 10 by the detection operation of the cloth detecting means 9 described later, the ball screw 6b is rotated, and the table 4 is moved according to the amount of cloth placed on the cloth hanging table 4. Is made to descend.

The driving amount of the step motor 6c for rotating the ball screw 6b is calculated in advance from the pitch of the ball screw 6b and the cloth thickness. The cloth pressing rod 7 is arranged at a position on the sewing machine table 2 on the downstream side in the cloth feeding direction, adjacent to the sewing machine 1, supported by a standing pole 7a, and provided with a pressing surface that moves vertically up and down. The cylinder 7b is configured to press the end portion of the cloth sewn by the sewing machine 1 to prevent the cloth from being naturally dropped until it is pressed by the cloth hanging table 4 and air blowing starts. Is made in.

The cloth pressing plate 8 is a flat pressing plate 8 a arranged with a reference position set at a position where the cloth feeding downstream side end surface of the sewing machine table 2 is hung, and a horizontal pressing surface which is supported on the lower surface of the sewing machine table 2. An air cylinder 8b that operates to move the pressing plate 8a to the cloth hanging table 4 side, and the cloth that is sent from the cloth feeding downstream end of the sewing machine table 2 and hangs down by the extending operation of the cylinder 8b is used. The sewing machine table 4 is pressed against the end surface 4a of the sewing machine table.

The air blowing device 12 has a tube body having a plurality of blowout ports 12a connected to an air supply source such as a blower, which is separately provided, at a position below the cloth feeding downstream end of the sewing machine table 2 and having a length. The sewing machine table 2 is arranged so that the direction thereof is the depth direction of the sewing machine table 2, and the plurality of blowout ports 12a are similarly directed downstream of the pipe body with respect to the cloth feed and downward by a predetermined angle. The cloth is sewn and blown under pressure to the lower side (back surface) of the cloth hanging from the cloth feed downstream side end of the sewing machine table 2 to blow the cloth in reverse.

The cloth detecting means 9 is composed of a non-contact type optical sensor 9 b which is vertically movable and is supported by a support rod 9 a provided vertically on the lower surface of the sewing machine table 2. The hanging portion of the cloth sent out from the sewing machine table 2 is detected and a detection signal is output to the controller 10. The controller 10 has a control circuit such as a microcomputer and a timer, which is provided at the base of the cloth cradle S, and which has a built-in control circuit based on a detection signal from the cloth detecting means 9 via the control circuit. , And the cloth pressing plate 8 are operated, and the step motor 6c in the drive mechanism 6 is driven for a predetermined time.

Next, the operation of the embodiment configured as described above will be described. In this embodiment, when the cloth W sewn by the sewing machine 1 hangs downward from the cloth feed downstream side end of the sewing machine table 2 as shown in FIG. 4, the hanging portion W1 of the cloth W is detected by the detection step 9. It is detected by the sensor 9b and this detection signal is output to the controller 10.

Upon receiving the signal, the controller 10 operates the air cylinder 7b to lower the cloth pressing rod 7 as shown in FIG. 5, and the rod 7 moves the sewing end portion W2 of the cloth W onto the sewing machine table 2. The air cylinder 8b is extended and the pressing plate 8a presses the hanging portion W1 against the sewing machine side end surface 4a of the cloth hanging table 4.

Then, while the pressure air is blown from the air blowing device 12 to the lower surface (back surface) of the cloth W stretched between the cloth pressing rod 7 and the cloth pressing plate 8, the cloth is pressed. The pressing rod 7 rises to release the pressure on the sewing end W2 of the cloth W. The cloth W having the terminal end W2 released has its lower end W2 held by the pressing plate 8a and the sewing machine side end surface 4a of the cloth hanging table 4 as shown in FIG. The trajectory Z is drawn in space and the upper and lower surfaces are inverted while being blown away, and fall onto a predetermined position on the cloth hanging table 4.

The cloths W dropped on the cloth hanging table 4 are stacked in such a manner that a terminal end W2 and a hanging portion W1 are respectively hung at both ends of the cloth hanging table 4. Thereafter, the air cylinder 8b is contracted by the control operation of the controller 10 to return the pressing plate 8a to the reference position, and the stepper motor 6c of the drive mechanism 6 receives a drive signal for a predetermined time from the controller 10 by the thickness of the stacked cloths. The step motor 6c is driven to rotate the ball screw 6b by driving the step motor 6c at an angle corresponding to the predetermined time, and the cloth thickness (or the thickness of the cloth hanging table 4 stacked on the cloth hanging table 4 is inserted through the ball nut 6a to be screwed). It lowers by the number of sheets) and waits for the next stacking.

Then, the cloths W which are drooped in sequence are detected one after another, and the stacking amount is increased while repeating the above steps based on this detection operation. In this case, the cloth hanging table 4 is separated from the cloth feeding downstream side end of the sewing machine table 2 by the thickness of the cloth W detected by the detecting means 9, and the cloth hanging table 4 is equal to the separated amount. Since it is lowered, the relative positional relationship between the blowing port 12a of the air blowing device 12 and the upper surface of the cloth W that is the uppermost layer of the cloth W stacked in multiple layers on the cloth hanging table 4, that is, the air blows onto the cloth. Since the concentrated contact position can maintain the same positional relationship as the positional relationship in the cloth W initially stacked, the air from the air spraying device 12 always acts on the cloth W under the same conditions, and Since the reversing operation becomes constant, the cloth can be correctly aligned and stacked at a predetermined position on the cloth hanging table 4, and the load does not collapse due to an unbalanced load of the stacked cloth.

[0022]

[Effect of device]

 As described above, according to the present invention, the relative positional relationship between the blowing port of the air blowing device and the upper surface of the cloth stacked on the cloth hanging table is surely kept constant without being affected by the increase in the stacking amount. Since it is possible to blow air onto the upper surface of the cloth while maintaining the positional relationship of the cloth, the cloth sewn at the predetermined position on the cloth hanging table can always be correctly aligned and stacked in large quantities. The effect of eliminating the load collapse of the cloth from the cloth hanging table due to the unbalanced load at the time of multiple stacking can be obtained.

[Brief description of drawings]

FIG. 1 is an overall external perspective view of an embodiment equipped with the present invention.

FIG. 2 is a front view showing a main part in FIG.

FIG. 3 is an explanatory perspective view showing a drive mechanism and the like.

FIG. 4 is a front view of the main parts for explaining the operation of the embodiment.

FIG. 5 is a front view of the main part for explaining the transition of the operation.

FIG. 6 is a front view of the main part for explaining the transition of the operation.

[Explanation of symbols]

 2 Sewing machine table 4 Cloth hanging table 4a Sewing machine side end surface 6 Drive mechanism 8 Cloth holding plate 12 Air spraying device M Sewing machine device W Cloth

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Toshikazu Tsukuda 1-33, Ebie, Fukushima-ku, Osaka City, Osaka Prefecture Pegasus Sewing Machine Manufacturing Co., Ltd.Osaka Branch (72) Hideo Matsushita, Sagizu, Fukushima-ku, Osaka-shi, Osaka 5-7-2 Pegasus Sewing Machine Manufacturing Co., Ltd. (72) Inventor Masahiko Nishikawa 5-7-2 Sagisu Fukushima-ku, Osaka City Osaka Prefecture Pegasus Sewing Machine Manufacturing Co., Ltd.

Claims (1)

[Scope of utility model registration request] 1. A cloth hanging table is provided below a cloth feeding downstream side of the sewing machine table, and the cloth hanging from the sewing machine table is clamped by an end surface of the cloth hanging table on the sewing machine side and a cloth pressing plate provided in the sewing machine. In the stacker device for a sewing machine, the cloth hanging table is separated from the sewing machine side in accordance with the thickness of the cloth, and air is blown against the cloth to stack the cloth hanging table on the cloth hanging table while reversing the cloth. A stacker for a sewing machine, characterized in that an air blowing direction to the cloth is directed to the downstream side of the cloth feed and downward by a predetermined angle, and a drive mechanism for lowering the cloth hanging table according to the stacking amount of the cloth is provided. apparatus.