CN104192623A - Automatic cutting and unwinding equipment - Google Patents

Abstract

The invention discloses automatic cutting and unreeling equipment which comprises an unreeling mechanism, a tensioning mechanism and a cutting mechanism, wherein the unreeling mechanism comprises at least two reels, the reel for unreeling is an old reel, and the reel provided with coiled materials is a new reel; the tensioning mechanism comprises a compression roller device and a first roller passing device; the cutting mechanism comprises a cutter and a cutter driving device, and the cutter is arranged between the compression roller device and the first roller passing device; when cutting mechanism cuts, unwinding mechanism rotates and makes the new roll of reel be in the unwinding position, first roller device is being pressed the coiled material between new roll of reel and the old roll of reel, makes the coiled material tighten, compression roller device will coiled material on the old roll of reel is pressed and is fixed on the coiled material of new roll of reel, the cutter receives cutter drive arrangement's control is right the coiled material between first roller device of crossing and the new roll of reel transversely cuts off.

Description

An automatic cutting and unwinding device

technical field

The invention relates to the technical field of coating machine equipment, in particular to an automatic cutting and unwinding equipment.

Background technique

The cutting part of the existing unwinding unit uses a cutter (generally the cutter is zigzag) for cutting, and the cutting method of the cutter is vertically downward from top to bottom, but it is limited by Influenced by the coil tension on the left and right sides of the cutting part, the cutting surface is uneven, and a certain length of the coil will be scrapped, resulting in waste.

Contents of the invention

The technical problem to be solved by the present invention is to provide an automatic cutting and unwinding device to control the tension of the coil before cutting the coil, and to change the cutting method, effectively To ensure the neatness of the cutting surface of the coil and avoid waste.

Among the above technical solutions, in order to solve the above technical problems, the technical solution adopted by the present invention is: an automatic cutting and unwinding device, including an unwinding mechanism, a tensioning mechanism and a cutting mechanism, and the unwinding mechanism includes at least two The reel, the reel that has been unwound is an old reel, and the reel that is provided with a coil is a new reel; the tensioning mechanism includes a pressing roller device and a first roller passing device; the The cutting mechanism includes a cutting knife and a cutting knife driving device, and the cutting knife is arranged between the pressing roller device and the first roller passing device; when the cutting mechanism performs cutting, the unwinding mechanism rotates to make The new reel is in the unwinding position, the first roller device presses the coil material between the new reel and the old reel to make the coil tight, and the pressure roller device presses the old reel The coiled material on the roll is pressed and fixed on the coiled material of the new roll, and the cutter is controlled by the cutting knife driving device to carry out the cutting process on the coil between the first roller passing device and the new roll. Cut across.

In the above technical solution, the unwinding mechanism includes a reel mounting frame, the reel is set on the reel mounting frame, the middle part of the reel mounting frame is hinged, and the reel mounting frame is driven by unwinding The device drives to exchange the position of the new roll and the old roll.

In the above technical solution, a second roller passing device is arranged between the two reels, and the second roller passing device is arranged on the reel mounting frame.

In the above technical solution, the pressure roller device, the first roller passing device or the second roller passing device at least includes one roller.

In the above technical solution, there are two reels, and the two reels are respectively arranged at two ends of the reel installation frame.

In the above technical solution, the cutting mechanism also includes a cutting swing arm, one end of the cutting swing arm is hinged, the middle part of the cutting swing arm is in transmission connection with the swing arm driving device, and the cutting swing arm The other end is provided with the cutter.

In the above technical solution, the pressing roller device and the first roller passing device are arranged on the cutting swing arm.

In the above technical solution, the pressing roller device is controlled by a pressing roller driving device to press and fix the coiled material on the old roll to the coiled material on the new roll.

The beneficial effect of the present invention is: to change the traditional cutting method, the original cutting method is to use the cutting knife to cut the coiled material vertically from top to bottom, when the tension of the coiled material is insufficient and the cutting knife is zigzag Under normal circumstances, it is easy to make the cutting surface of the coil material uneven, which will lead to the scrapping of part of the coil material, resulting in waste; by setting the cutting mechanism and the tensioning mechanism of the present invention, it can effectively solve the problem caused by the uneven cutting method. Reasonable and uneven cutting surface caused by insufficient tension, and will not cause scrap and waste of coils. the

Description of drawings

Fig. 1 is the overall structural representation of the normal state of the present invention;

Fig. 2 is a schematic diagram of the overall structure of the cutting state of the present invention;

FIG. 3 is an enlarged structural schematic diagram of part A in FIG. 2 .

Among the figure, 11, unwinding support frame; 12, reel mounting frame; 13, new reel; 14, old reel; 21, cutting support frame; 22, cutting swing arm; 23, swing arm cylinder ; 24, cutter; 25, cutter cylinder; 31, the first roller device; 32, roller device; 33, the second roller device; 34, roller cylinder.

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings.

As shown in Figures 1, 2 and 3, an automatic cutting and unwinding device includes a frame and an unwinding mechanism, a tensioning mechanism and a cutting mechanism installed on the frame.

The unwinding mechanism comprises an unwinding support frame 11, a reel mounting frame 12 and a reel, the unwinding support frame 11 is fixed on the frame, and the middle part of the reel mounting frame 12 is hinged to the unwinding support frame 11, which can be The reel mounting frame 12 is made to rotate automatically, and a reel is respectively arranged at both ends of the reel mounting frame 12, and the reel is used for unwinding; the reel can also be rotated by the power device. The reel that is about to finish unwinding is used as the old reel 14, and the reel that is provided with new coils is used as the new reel 13. After the old reel 14 has been unwound, the reel needs to be replaced so that the new reel The reel 13 is replaced to the unwinding position of the old reel 14 for continuous unwinding. After the new reel 13 is in place, the tensioning mechanism will be driven to adjust the tension of the coil to prepare for the cutting mechanism. After the tension meets the cutting requirements, the cutting mechanism will act to cut the coil horizontally .

Specifically, a second roller passing device 33 is arranged between the two reels, and the second roller passing device 33 is arranged on the reel installation frame 12 . At least two reels can also be set in the unwinding mechanism, and a passing roller is arranged between every two reels. The second roller passing device 33 is also used to press the coil between the new roll reel 13 and the old roll reel 14 to increase the tension of the coil, but the pressing direction of the second roller passing device 33 to the coil is Opposite to the pressing direction of the first roller passing device 31 on the coil, the tension of the coil is more effectively increased.

Cutting mechanism comprises cutting support frame 21, cutting swing arm 22, swing arm cylinder 23, cutter 24 and cutter cylinder 25, and one end of cutting swing arm 22 is hinged on the cutting support frame 21, and swing arm cylinder 23 Installed on the cutting support frame 21, the output end of the swing arm cylinder 23 is connected with the middle part of the cutting swing arm 22 through a connecting rod, and the other end of the cutting swing arm 22 is equipped with a cutter 24 and a cutter cylinder 25. The output end of the knife cylinder 25 is connected with the cutter 24. The cutter 24 cuts horizontally from one side of the coiled material to the other side of the coiled material. And wrinkled, and the cutting surface will be very neat, will not cause waste.

The tensioning mechanism comprises a first roller device 31 and a pressure roller device 32, the first roller device 31 and the roller device 32 are installed on the cutting swing arm 22, and the cutter 24 is arranged on the first roller device 31 and the pressure roller device. Between the roller devices 32, the position of the first roller passing device 31 on the cutting swing arm 22 is fixed, and the pressing roller device 32 is installed on one end of a connecting rod, and the other end of the connecting rod is connected with the pressing roller cylinder 34. Output end transmission connection, this pressure roller air cylinder is installed on the cutting swing arm 22, and the middle part of connecting rod is hinged on the cutting swing arm 22. The first roller passing device 31 is arranged at the end of the free end of the cutting swing arm 22 . The first roller passing device 31 is used to press the coil between the new roll 13 and the old roll 14 to increase the tension of the roll. The pressing roller device 32 is used to press the coiled material on the fresh roll 13 . the

Specifically, the first roller passing device 31 , pressing roller device 32 or second roller passing device 33 includes at least one roller, and may also be composed of two or more rollers.

The working principle of the present invention: in the production process, the unwinding mechanism is unwinding the coiled material. When the old roll 14 is unwound, the unwinding mechanism automatically switches the reel, and the reel mounting frame 12 counterclockwise Rotate, the old roll reel 14 is withdrawn from the unwinding station, and the new roll reel 13 is just approaching the unwinding station at the same time, and in the process of the old roll reel 14 leaving the unwinding station, the coil is elongated, and the coil Pressed up by the second roll-over device 33, after the new reel 13 is in place, the part of the coil material pressed by the second roll-over device 33 is suspended, and the new coil 13 of the new reel 13 is provided with a Fix the double-sided tape or other sticky substances on the coiled material on the old roll, the cutting swing arm 22 will swing, and the first roller passing device 31 on the cutting swing arm 22 will press the coiled material downward, The pressure roller device 32 will stretch out and press the elongated suspended coiled material to the surface of the new roll 13 new coiled material, so that the pressed part of the coiled material will pass through the double-sided tape (or other sticky substances) ) is fixed on the new reel 13 to realize the joining of the old and new coils, and then the cutter 24 moves to cut laterally from one side of the coil between the first roller passing device 31 and the new reel 13 to the other side of the coil. On the one hand, the coiled material is cut off; after the coiled material is cut off, the cutting mechanism retracts, and the new roll 13 is unwound.

The above embodiments are only intended to illustrate rather than limit the present invention, so all equivalent changes or modifications made according to the methods described in the scope of the patent application of the present invention are included in the scope of the patent application of the present invention.

Claims (8)

1. An automatic cutting and unwinding device, characterized in that: it includes an unwinding mechanism, a tensioning mechanism and a cutting mechanism, the unwinding mechanism includes at least two reels, and the reels that complete the unwinding are old rolls The reel, the reel provided with the coil is a new reel; the tensioning mechanism includes a pressing roller device and a first roller passing device; the cutting mechanism includes a cutter and a cutter driving device, the The cutting knife is arranged between the pressing roller device and the first roller passing device; when the cutting mechanism is cutting, the unwinding mechanism rotates so that the new roll is in the unwinding position, and the first passing roller The roller device presses the coil between the new roll and the old roll to make the coil tight, and the pressure roller device presses and fixes the coil on the old roll on the new roll. On the coiled material, the cutter is controlled by the cutter driving device to transversely cut the coiled material between the first roller passing device and the new roll. 2. An automatic cutting and unwinding device according to claim 1, characterized in that: the unwinding mechanism includes a reel mounting frame, the reel is arranged on the reel mounting frame, and the reel The middle part of the mounting frame is hinged, and the reel mounting frame is driven by an unwinding driving device to exchange the positions of the new reel and the old reel. 3. An automatic cutting and unwinding device according to claim 2, characterized in that: a second roller passing device is arranged between the two reels, and the second roller passing device is arranged on the reel on the mounting bracket. 4 . The automatic cutting and unwinding device according to claim 3 , wherein the pressure roller device, the first roller passing device or the second roller passing device comprise at least one roller. 5 . The automatic cutting and unwinding device according to claim 2 , wherein there are two reels, and the two reels are respectively arranged at two ends of the reel mounting frame. 6 . 6. A kind of automatic cutting and unwinding equipment according to claim 1, characterized in that: the cutting mechanism also includes a cutting swing arm, one end of the cutting swing arm is hinged, and the cutting swing arm The middle part of the cutting arm is in transmission connection with the swing arm driving device, and the other end of the cutting swing arm is provided with the cutting knife. 7. An automatic cutting and unwinding device according to claim 6, characterized in that: the pressure roller device and the first roller passing device are arranged on the cutting swing arm. 8. An automatic cutting and unwinding device according to claim 1, characterized in that: the pressing roller device is controlled by a pressing roller driving device to press and fix the coiled material on the old roll to the new roll on the reel.