CN1014332B - Thin sheet cutting device for flexible fabrics - Google Patents

Abstract

This invention relates to a sheet cutter for soft woven fabric which comprises a feed means for a sheet of woven fabric, a cutting means positioned in front of the feed means, a sheet floating means disposed between the feed means and the cutting means, a support means for temporarily receiving the sheet cut by the cutting means and a conveyor means for vertically moving the sheet supported temporarily, laminating the sheets and conveying them to outside. A sheet floating quantity limitation means is added so as to cover the upper part of the sheet floating means or a vertical moving means is added to the conveyor means for laminating the sheets. A sheet of woven fabric is cut while the wrinkling thereof is prevented by the sheet floating means and, after the movement by the feed means for the cut sheets is stopped by the support means for temporarily receiving the sheets, the cut sheets are laminated. The cutter of the invention can easily cut particularly woven fabric having a small width and can laminate the sheets of woven fabric after cutting in order.

Description

The invention relates to a thin sheet material cutting device for flexible fabrics, which is suitable for cutting fabrics, especially for cutting flexible fabrics or clothing cuffs, collars, hems, as well as rubberized fabrics, soft fabrics used on other required parts of clothing Felt or some other flexible fabric etc.

Among conventional flexible fabric cutting devices, especially for cutting fabrics in short widths, there have been sheet cutting devices that use a cutter to cut fabrics supported solely by rollers.

However, in the existing fabric cutting device, that is, the fabric supported on the roller is sent out through the feeding roller, and the fabric will cause wrinkles when it is pushed to reach the receiving body of a certain size; The rollers provided in addition stretch the front end of the fabric while clamping it. Due to the soft nature of the fabric itself, it will eventually be stretched. If it is cut in this state, the elongated size of the cut fabric will shrink to reach If the size is less than the specified size, the cut fabric will deviate in size, become a defective product, and constitute disadvantages such as not being able to be sold as a finished product.

The object of the present invention is to provide a thin sheet material cutting device for flexible fabrics, which can cut fabrics according to the specified size without shortening or stretching, especially for cutting flexible fabrics or the cuffs, collars and hems of clothing, and can be used in Adhesive fabrics, etc. can be applied to the required parts of other types of clothing, which can prevent defective products and efficiently produce products of a certain size.

The features of the sheet material cutting device for flexible fabrics of the present invention are as follows: a feed roller 2 is provided on the machine table 1 and an upper cutter 9 and a lower cutter 3 that can move up and down are arranged in front of the feed roller 2. In the passage between the incoming flexible sheet material 8, there is provided an air injection hole 5 that makes the sheet material 8 float upward to eject gas. Float over the upper receiving plate 6 of necessary height, for sending The sheet 8 fed by the material roller is carried by the gas ejected from the gas injection hole 5, and at the same time, it is sent between the upper cutter 9 and the lower cutter 3 in front, and in front of the upper cutter 9 and the lower cutter 3. , a receiving body 7 that can be adjusted according to a certain size is installed on the machine table 1. When the thin sheet material 8 reaches the receiving body 7, the thin sheet material 8 is cut off because the upper cutting knife 9 and the lower cutting knife 3 are interlocked. And at the same time, the cut sheet material 8 is accommodated by the receiving plate 11 which is fixed below the receiving body 7 and can move forward and backward freely.

In the present invention, for example, a roller 13 equipped with a batch of needles can be used without pinching, and the stretchable flexible fabric of the glue, that is, the sheet material 8, can be transported (it can also be replaced by a drooping or other transport device) Roller 13 with needles), during the conveying process, when the sheet material 8 sent by the roller 2 passes above the gas injection hole 5, it will float up under the influence of the gas injection. Then, the floating sheet material 8 is in contact with the upper receiving plate 6, and passes between the upper cutter 9 and the lower cutter 3. The front end of the sheet material is placed on the receiving body 7 while being used to standardize a certain size. It bears on the receiving plate 11 which is set under the receiving body 7 and can move forward and backward freely. When the upper cutter 9 is lowered, the sheet material 8 is cut off according to a certain size. The cut sheet material 8 is piled up on the belt conveyor 12 and moved to the take-out direction.

The upper cutter 9 is guided to move up and down by the groove 30 provided on the machine table 1 . In addition, the receiving plate 11 is moved forward and backward by a rod 16 above, and when the upper end of the latter swings back and forth, the receiving plate 11 can be moved left and right. The up-and-down movement of the upper cutter 9 and the swing of the bar 16 can be carried out by means of the movement of the eccentric shaft 15 and the grooved eccentric cam 18. Such movement can then be integrally driven by a power source 14, such as a motor.

As described above, according to the present invention, for fabrics that stretch and shrink due to softness so that the cut products become non-uniform, especially when cutting with a short width, no wrinkles will be generated in the fabric; or when cutting the glued fabric When it is unnecessary to stretch the front end of the fabric and other structures, Therefore, there is no need to consider the extensibility of the rubber, and it is still possible to use the gas ejected from the gas injection hole as usual, and it is easy to cut according to a certain length by the set cutter. The raw material of the fabric is cut off according to the surplus. Thus, the manufacturing cost can be reduced. In addition, it is also easy to change the width of the sheet material by changing the position of the receiving body 7, and because the cut sheet material is transported and packaged in the manner of stacking on the belt conveyor, it is easy to dispose of the cut sheet material. It can be used for the treatment of the next process, and has the advantages of simple structure and large-scale production at low cost.

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

Figure 1 is a schematic front view illustrating an embodiment of the present invention;

Fig. 2 is the oblique view near the feeding roller part;

Figure 3 is a perspective view showing the proximity of the receiver and the switchgear;

Fig. 4 is the oblique view showing the cutter of the present invention, the power mechanism of switchgear;

5 and 6 are schematic diagrams illustrating the cutting of the fabric.

Numbers in the picture: 1, machine platform; 2, feeding roller; 3, lower cutter; 4, lower cutter bracket; 5, air jet hole; 6, upper receiving plate; 7, receiving body; 8, sheet material; 9 , upper cutter; 10, compressor; 11, receiving plate; 12, belt conveyor; 13, roller with knitted fabric; 14, power source; 15, eccentric shaft; 16, rod; 17, shaft; 18 , eccentric cam with groove; 19, roller; 20, connecting rod device; 21, working rod; 22, elongated hole; 23, lug; 24, connecting device; 25, hydraulic cylinder; 26, screw; 27, Support rod; 28, guide body; 29, tension shaft; 30, groove; 31, gas pipeline; 32, elongated hole; 33, adjusting rod.

In the present invention, in the machine platform 1, a pair of feed rollers 2 are provided to transport the sheet material to the front, and a roller 13 with a needle is provided at the same time, which is used to prevent the sheet material 8 from sliding on the feed roller 2 and at the same time supply. In addition, in front of the feed roller 2, a lower cutter 3 is installed to Assembled in the lower cutter support 4 of its front end, and then have a batch of jet holes 5 on the inner top surface of this lower cutter support 4, and place an upper receiving plate 6 above the latter. The inside of the lower cutter bracket 4 is in the form of a cavity, and the compressed air from the compressor 10 is introduced into the inner cavity of the lower cutter bracket 4 through the gas pipeline 31, and this inner cavity further becomes the air ejected through the air injection hole 5. organization. In addition, an elongated hole 32 and a screw 26 are provided in front of the lower cutter 3, by which the position of the front end of the adjusting rod 33 whose length has been set can be adjusted, and the receiving body can be assembled to the front end of the adjusting rod 33 to determine the thickness of the sheet. The front end position of material 8. A receiving plate 11 is arranged below the receiving body. The receiving plate 11 has such a structure that it is supported under the sheet material 8 whose front end touches the receiving body 7. When the sheet material 8 is cut off, it can pass through the receiving plate. 11 retreats to the rear and the sheet material 8 is dropped below. The below of this receiving plate 11 is located at the front end of the belt conveyor 12 outside the machine platform 1. This conveyor will transport the thin sheet material 8 cut off by a certain size to the packaging position, and pack it in a stacked state.

Fig. 1 and Fig. 4 show an example of the running mechanism of upper cutter 9 and bearing plate 11, and this upper cutter 9 is transmitted to the upper cutter 9 by means of a power source 14 such as a motor through an eccentric shaft 15 and a rod 16. The effect of the shaft portion 17 is to guide the upper cutter into the groove 30 to move up and down. The receiving plate 11 moves the working rod 21 back and forth through the connecting rod device 20 through the movement of the roller in the groove of the eccentric cam 18 with the groove, so that the lug 23 (Fig. 3) arranged on the receiving plate 11 It is movably inserted into the elongated hole 22 of the working rod, so that the forward and backward movement of the working rod 21 is converted into the forward and backward movement of the receiving plate 11 .

As for the structure of the belt conveyor 12, for example, the upper body on which the belt conveyor 12 is mounted can carry out upward parallel movement with the connecting device 24. Such connecting device 24, for example, can be moved up and down and positioned by a hydraulic cylinder.

27 in Fig. 1 is a supporting rod, is inserted into and is installed on the bearing plate in a slidable manner On the guide body 28 in 11, be used for making receiving plate 11 can carry out advancing and retreating movement; And 29 is tensioning shaft, is used for making the thin sheet material that is supplied on the roller 13 of band needle-like thing stretch out.

Due to the above-mentioned structure in the present invention, the flexible thin sheet material 8 can be supplied to the feed roller 2 via the needle-shaped roller 13, and the thin sheet material 8 is limited to be sent out in a predetermined size. Then, when this sheet material 8 was conveyed above the lower cutter frame 4 by means of the feeding roller, although it would float up due to the gas ejected from the gas injection hole 5 that was arranged in the lower blade frame 4, due to the gas injection hole 5 at this There is an upper receiving plate 6 above, so that wrinkles can be prevented. When the sheet material 8 conveyed in this way reaches the receiver 7 through the lower cutter, the upper cutter descends to cut the sheet material 8 . As for the timing device when the upper cutter 9 descends, when the power source 14 of the feed roller 2 and the upper cutter 9 is used as a common power, it is a device that adjusts the speed by a gear mechanism or the like. In addition, when other equipment is used as the power source, such a mechanism can be considered: use various sensors of light, static electricity and contact to detect the moment when the sheet material 8 collides with the receiver 7, and make the power source 14 rotate to make the upper part The cutter operates.

Then, while cutting by the upper cutter or after cutting, the receiving plate 11 is moved to the rear, and the cut sheet material 8 falls from the receiving plate 11 to the bottom, and one side is sequentially overlapped on the belt located below. On the type conveyor 12, one side falls. At this moment, the thickness of the sliced sheets piled up on the belt conveyor 12 successively increases gradually, and will be in contact with the lower surface of the receiving plate 11. Due to the effect of the hydraulic cylinder 25, the height of the belt conveyor 12 is increased. reduce. The height adjustment work of this belt conveyor 12 preferably corresponds to the number of cuts. After a certain amount of sheet material has been cut off, the belt conveyor 12 is started, and the cut-off product is packaged with ropes.

When the width of sheet material 8 needs to be changed, the screw 26 can be loosened, and the adjusting rod 33 can be adjusted along the elongated hole 32. After the receiving body 7 is allowed to reach the desired position and the predetermined size has been determined, the screw is tightened again, and then the The steps to be carried out are the same as those described above. but, It is necessary to adjust the timing relationship of cutting by the upper cutter. Therefore, in order to increase the cutting width, if the cutting is performed at the timing before the expansion, the cutting should be performed before the sheet material 8 reaches the receiver 8 . In addition, if optical, electrostatic, and contact sensors are mechanically combined as a detection mechanism initially (for example, this type of sensor is assembled on the receiver 7, and the power source is controlled accordingly), when it is used for timing adjustment, Sometimes it is not necessary to make adjustments and save labor.

Claims (1)

1, a kind of cutter sweep of thin slice material of flexible fabric, be included in feeding roller that is provided with on the board and top movable up and down cutting knife and the bottom cutting knife that is provided with in this feeding roller the place ahead, side before this top cutting knife and bottom cutting knife, being equipped with on this board can be by the reception body of certain size adjustment, when thin slice expects that reaching this receives body, because this top cutting knife and bottom cutting knife misfit and the thin slice material is cut off mutually, and at the same time, have the thin slice material that this has cut off in one's care by the receiving plate that is contained in this reception body below and can freely advance and retreat, it is characterized in that being provided with the fumarole that upwards sprays gas that the thin slice material is floated in by path therebetween at the flexible thin sheet stock of sending into, do not make this thin slice material float receiving plate on the necessary height then being equipped with every appropriate gap above this fumarole, the thin slice material of being sent into by feeding roller carries floating through the gas of fumarole ejection.

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