JPS623431Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a pocket cutting device, and more particularly, to a device that simultaneously cuts a plurality of objects to be cut into the same shape or similar shapes that differ only in part.

Conventional cutting involves stacking fabric or paper to a thickness of about 20 to 30 cm and cutting them all together into a certain shape, or like laser cutting, a single piece of fabric is cut by cutting a cutting line with a single laser. There is a way. The former method has good cutting efficiency, but has the disadvantage that it requires time and effort to handle the cloth during the transfer to the next process and the joining process. The latter is done accurately, but it is cut with a single laser, which is less efficient than expensive equipment, and its use is limited to areas such as cutting outer fabrics.When cutting joined fabrics, it is necessary to cut at the cutting line and join. There are drawbacks such as lack of reliability, as the technology for accurately aligning the wires with a certain distance has not been developed, and the joining wires may be cut.

Pocket bags, bags for storing small items, etc. Sewing by sewing or gluing with adhesives, or fusing with high frequency or ultrasonic oscillators (the above-mentioned sewing, gluing, and fusing are hereinafter referred to as bonding) Various bonding methods have been developed, such as
In the conventional method, a plurality of bonding machines are arranged in parallel, and the same number of molds are provided in the bonding machine, and the cut cloth or film is sandwiched between the plurality of molds. The work of taking out the cut fabric one by one and placing it on the formwork so that the fabric is placed neatly and accurately on a flat surface generally takes more time than the joining time.The key to increasing the operation rate of the joining machine is to It depends on the supply method. When manually cut fabric is placed in a conventional formwork, the operating rate is 40 to 50%, which is extremely low, and despite the high efficiency of the splicing machine, overall efficiency has not improved. There's a problem. There are methods of transporting the cut fabric mechanically or by the hands of a robot, but in the case of fabric, it is difficult to turn each piece of fabric over and place it in the correct position, so the results have not been satisfactory. A method has also been devised in which a long piece of fabric is joined and then cut by moving the cutting blade along the XY axes, but the method for feeding the cut fabric, measures to ensure that the joining line and cutting line match without deviation, and the cut fabric There are problems such as measures to fix the problem and slow overall speed.

This project eliminates the above-mentioned drawbacks and automatically cuts the fabric along the cutting line to create individual sewn products or sewn parts.By operating in conjunction with a splicing machine, the efficiency of the entire splicing system is improved. It is. The purpose is also to cut a portion of one side of the pocket cloth.

An embodiment of the present invention will be described below with reference to the drawings.
The splicing machine can be used to make pockets for jackets made of woven fabrics, knitted fabrics, tapes, non-woven fabrics, paper, coated fabrics, synthetic resin films, etc., inner pockets, pockets for clothing worn on the lower body called bottoms such as pants and skirts, etc. The fabric 1 used for side pockets, piston pockets, and secret pockets is a long piece of fabric that is either two layers, one piece of fabric folded in half, or a small piece of cloth where one side is long and the other is cut as appropriate. 2
is supplied. Pieces of fabric include tape, fabrics that are already partially or fully joined, and the like.

FIG. 1 is a plan view showing the configuration of a joining machine. For example, the formwork is driven in the shape of a 〓 by an XY drive axis consisting of lines sewn, glued, or fused in the shape of a 〓, which is one shape of a pocket. A joining line of the shape is formed on a long cloth 1. Next, cutting is performed as follows, leaving a width of about 5 to 10 mm around the edge from the joining line 7, which is called a seam allowance in the case of sewing. That is, the joined pocket fabric is fixed in a predetermined position by the substantially rectangular fixing frame 8 made of metal, synthetic resin, lightweight synthetic material, etc., by being sandwiched between the fixing frame 8 from above and below. .

The fixed frame 8 is connected to the Y drive shaft 2 as shown in FIG.
It is connected to the 1X drive shaft 14 via a locking fitting 22.

FIG. 6A shows the X drive shaft 14Y in the table 20.
The drive shaft 21 is recessed, and the XY drive shaft consisting of both drives the timing belt with a DC motor or pulse motor, forming a groove in which the timing belt can be stored in the table, and providing a locking fitting 22 on the timing belt. Lock the fixed frame. A cross-sectional view of the timing belt, motor, and fixed frame is also shown in FIG. Figure 6B
In this case, the XY drive shaft is installed on four legs assembled above the table, and a locking metal fitting 22 is installed on the shaft rod with a spiral groove or on the timing belt by the drive motor, and it is engaged with the fixed frame 18. Stop and connect. As the amount of fabric to be cut and the number of long lengths increases, the output of the XY drive shafts can be increased, so the number of drive shafts can be increased for each of the XY and Y directions.

In order for the fixed frame 8 to move accurately with minimal frictional resistance, a roller pulley bearing or the like can be provided at an appropriate location on the back of the fixed frame.

The cutting machine 9 has a cutting blade 16 at the tip, and cuts a belt and a shaft using a motor that can rotate a small round blade of, for example, 1 to 5 cm in diameter, at 5,000 to 20,000 revolutions per minute depending on the diameter of the round blade. The round blade is rotated at high speed through the If the round blade has a diameter of 2 cm and has a momentum of 10,000 rotations, it can easily cut the fabric without applying pressure.

The cut and separated fabric is placed on the trajectory along which the cutting blade 16 moves or on the cutting line 10 in order to securely fix the remaining fabric that is shaken and connected due to the vibration of the cutting blade or movement. The fixing plate 27 is made of synthetic resin, metal, or lightweight synthetic material, and is sandwiched between the top and bottom or fixed from above. One or more of the fixed plates 27 are locked or connected to the fixed frame 8 to constitute the cutting plate 23.

FIG. 4 shows a situation in which a number of cutters 9 corresponding to the fixed plates 23 are provided on a horizontal bar supported at both ends by cutter columns 25. The cutting machine 9 has a vertical drive unit 13 that moves up and down using pneumatic pressure such as an air cylinder, hydraulic pressure, or power from an electromagnet, and a Θ rotating shaft 26 that rotates the cutting blade precisely and quickly in the direction of an extremely small angle. It is composed of a drive motor 17 and a cutting blade 16. Vertical drive unit 13 has the function of vertical movement and control to recognize the cutting start point of the joined fabric using a sensor such as a mark, come down, contact the fabric appropriately, start cutting, and rise upward at the cutting end point. In addition, if it is difficult to cut by rotating the cutting blade gradually and changing the angle at a detailed cutting point, it is also possible to move away from the fabric and quickly change the direction of the cutting blade to cut the fine details. The Θ rotation shaft 26 is driven by a DC motor or a pulse motor, and is controlled by computer control so that the cutting blade 16 always faces in the direction in which the cutting line advances, and rotates to change the angle. The XY drive axis, Θ rotation axis, and vertical drive section are controlled by computer or sequence control using a program.

The present invention has the above-mentioned structure, and the pocket fabric is cut as follows. The pocket fabric joined into a pocket shape is fixed by a fixing plate 11, and is moved by an XY drive shaft via a fixing frame 8 to the position of a cutting blade 16.The cutting starting point is confirmed through a sensor, and the fabric is positioned above the cutting starting point. , vertical drive unit 1
3, the cutting blade 16 is lowered below the horizontal plane of the fabric 1, and at the same time the XY drive shafts are driven so that the cutting line 10 is formed. In the case of the 〓-shape of the embodiment, the straight cutting line ends, and the rotation of the Θ rotation axis begins at the corner, so that the cutting blade 16 always moves tangent to the curved cutting line, that is, in the direction in which the cutting line advances. Rotation movement is performed in accordance with the curved shape of the corner so that 16 is facing. 〓 Finished cutting as follows, finished first cutting,
Next, the fabric is transferred to the position of the linear cutter 11 shown in FIG. The specific position or mark of the 〓-shaped cutting line is recognized by a photoelectric sensor, etc., and the straight cutting groove 12 is cut when the fabric is correctly fed to the predetermined position.
The fabric is fixed by applying pressure with a horizontal bar along the groove, and the linear cutting machine 11 cuts the secondary cutting part 19 corresponding to the straight line part along the groove to be cut, completely separating the predetermined cut pieces from the fabric. It is something.

The present invention is based on the above-mentioned device and has the following features.

Since the fabric can be fed in long lengths to the splicing machine, there is no need to feed cut fabric one by one, which greatly reduces the time required to set the fabric in the formwork, improving the efficiency of expensive splicing machines, and improving the efficiency of expensive splicing machines. This can increase the overall system efficiency.

Since it is cut after joining, the distance between the joining line and the cutting line is constant. No punctures or sewing defects.

Joining and cutting can be fully automated, resulting in significant labor savings.

Since the fabric can be reliably fixed during cutting, there is no chance of the fabric dancing and causing cutting defects.

Since the fabric is cut in two parts, the transfer of the fabric is smooth, but since there is insufficient area to secure the fabric to feed the next fabric after it has been cut, the fabric may stretch, making it difficult to transfer the fabric accurately. Certain conventional drawbacks are overcome and accurate fabric transfer is achieved.

Due to the miniaturization of conventional blades, the cutting part is extremely inexpensive compared to lasers, etc.

In addition to the embodiments described above, the present invention also has the following configurations. That is, the cutting plate can be opened and closed automatically by power, such as by using an air cylinder, a motor magnet, or a tube. The fabric to be joined is not necessarily limited to long lengths, and is cut by the cutting machine 2.
The fabric is sized to fit in 3. The cutting board 23 is
The shape is not limited to a plate shape, but may be a trapezoidal shape, a substantially square side shape, or a framework shape having a minimum area for fixing the fabric.

The cutting blade is not limited to a powered round blade, but may also be an elongated vertical blade that moves up and down, a sewing machine cutter that moves up and down on the principle of scissors, a sewing machine scalpel, or a push-cut round blade. In the case of a warp blade cutter or scalpel, it is necessary to insert it into the fabric at all times, and therefore, in addition to the cutting shape, a groove in which the warp blade moves to continue the cutting shape is required. Further, the shape of the groove does not need to be such that it expands at the curved portion.
The length and size of the grooves do not necessarily all coincide with the cutting line 10. For example, when raising the cutting blade 16 and changing the angle for cutting at a detailed cutting location, a space is required for the trajectory of the cutting blade 16 into which the cutting blade can fit.

In other words, if the cutting line is as shown in Figure 8,
It requires a groove 24 as shown in the figure, and allows the cutting blade to be inserted from a position once removed. Fixed plate 23
Two fixing plates are not necessarily required, and depending on the texture and weight of the object to be cut, either the upper fixing plate or the lower fixing plate can be used. Also, one side can be used as a fixed plate and the other side can be held down with a thin belt-like or wire-like frame. Also, both fixing plates can be shaped into thin frames. In the above embodiment, the fabric 1 is
Although the XY drive shaft cutting blade 16 and the Θ rotation shaft 26 are separated into two driving parts, by not driving the fabric 1, for example, by connecting the XY drive shaft with the cutting machine support 25, it is possible to The drive shaft of
The cutting blade 16 can be driven.

There is no need to provide a Θ rotation shaft 26 or a vertical drive unit 13 for each of the cutting machines 9, and only one Θ rotation shaft 2 is required.
6 and one vertical drive unit 13, the several cutting machines are connected to a single Θ rotating shaft 26 and a vertical drive by applying the principles of gears and levers via a connecting rod connecting several cutting machines 9. The section 13 can perform Θ rotation, vertical movement, and control. Although the method of cutting the pocket fabric twice using the cutting method of the present invention has been described above, it is not limited to cutting the pocket fabric twice. When the arm holding down the cutting plate 23, which has grooves 24 that all correspond to the cutting line shape, cuts the 〓 shape,
When cutting a straight shape with the presser foot extending from the bottom, by pressing from the top, the fixing plate 27 can be held down without getting in the way of the cutting blade 16, and the fabric can be fixed and the entire cutting line can be cut. .

The aforementioned presser arm moves in accordance with the cutting line that is being cut, and does not get in the way of the cutting blade 16, but closes the fixing plate 2.
7 can be fixed. Another major cutting problem with pocket fabric is that it overlaps two layers.
Only the upper part of the upper fabric, which is the surface of the fabric, is cut. According to this proposal, a blade receiving plate made of wood, metal, or synthetic resin is sandwiched between two layers of cloth before being joined to prevent the cutting blade from reaching the lower cloth, and the upper cloth is shaped into a triangular or square shape. When cutting into a desired shape, only a portion of the upper cloth can be cut by moving the XY drive axis and the Θ rotation axis to the above-mentioned shape.

[Brief explanation of the drawing]

Fig. 1, Plan view of multi-head splicing machine, Fig. 2, Plan view of multi-head cutting machine, Fig. 3, Front view of multi-head cutting machine, Fig. 4, Perspective view explaining cutting situation, Fig. 5, Cutting line. Explanatory plan view, Fig. 6, Configuration plan view of the XY drive shaft and fixed frame, A example installed on the table, B Example installed on top of the legs, Fig. 7, Cutting plate plan view, No. 8 Figure, detail groove type plan view. 1...Fabric, 2...Fragment cloth, 3...Joining machine, 4
... Formwork, 5 ... Joining machine support, 6 ... Connection shaft, 7
... Joining line, 8 ... Fixed frame, 9 ... Cutting machine, 10
... Cutting line, 11 ... Linear cutting machine, 12 ... Linear cutting groove, 13 ... Vertical drive section, 14 ... X drive shaft, 15 ... Y drive shaft, 16 ... Cutting blade, 17 ...
...Cutting blade drive motor, 18...Primary cutting section, 1
9... Secondary cutting section, 20... Table, 21...
Y drive shaft, 22...locking metal fitting, 23...cutting plate,
24...groove, 25...cutting machine support, 26...Θ rotating shaft, 27...fixing plate.

Claims (1)

[Scope of utility model registration request] A fixing plate capable of fixing fabric used for clothing pockets, a cutting plate made up of one or several fixing plates, and a control and drive mechanism for moving the cutting plate in the X and Y directions. , a cutting machine composed of three parts: a vertical drive unit that has a cutting blade at the tip and performs vertical movement and control; and a Θ rotating shaft that performs precise rotational angle movement and control; and the object fixing plate. A cutting device characterized in that the cutting device has a number of cutting machines corresponding to the number described above, and cuts the fabric by fixing it through the fixing plate.