CN211310335U - Roll changing device for film dyeing machine - Google Patents

Abstract

The utility model discloses a roll changing device for a film dyeing machine, which comprises two vertically arranged telescopic cylinders, wherein the tops of the two telescopic cylinders are connected with a fixed frame; a rotating shaft is rotatably connected between the two fixing frames, and one end of the rotating shaft is connected with a motor fixed on the fixing frame; the two ends of the rotating shaft are fixedly connected with a cross-shaped arm support, and two oppositely arranged feeding rollers and two oppositely arranged guide rollers are connected between the outer side ends of the two arm supports; a rack is arranged on one side of the fixed frame, and a rotating shaft is arranged on the rack; a cam is fixed at one end of the rotating shaft, a first telescopic cylinder is rotatably connected at the convex position of the cam and is obliquely fixed on the rack; and a cutter frame is fixedly connected to the rotating shaft, and a film pressing roller and a cutter are arranged on the cutter frame. The utility model discloses not only can conveniently operate, still have the lower and stronger advantage of material loading stability of equipment cost.

Description

Roll changing device for film dyeing machine

Technical Field

The utility model relates to a roll change device, especially a film printing and dyeing machine roll change device.

Background

The film for manufacturing the food packaging bag needs to be compounded into a film roll, then the surface of the film roll is subjected to printing and dyeing by a printing and dyeing machine, and finally the printed film is cut and hot-pressed to form the packaging bag; in order to improve the roll changing efficiency, the roll changing devices in the existing film dyeing machine adopt double-roll type alternative roll changing (when a film roll on one roll is used up, the positions of two rolls are changed, and the film is fed to a new roll), the roll changing device needs to lift the film roll sleeved with the rolls to a proper position through a carrying tool, and then the film roll sleeved with the rolls is replaced by the used roll through accurately controlling the carrying tool, so that the operation is troublesome and the equipment cost is high. Therefore, the conventional roll changer has the problems of troublesome operation and high equipment cost.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a film dyeing machine is with roll change device. The utility model discloses not only can conveniently operate, still have the lower advantage of equipment cost.

The technical scheme of the utility model: a roll changing device for a film dyeing machine comprises two vertically arranged telescopic cylinders, wherein the tops of the two telescopic cylinders are connected with a fixed frame; a rotating shaft is rotatably connected between the two fixing frames, and one end of the rotating shaft is connected with a motor fixed on the fixing frame; the two ends of the rotating shaft are fixedly connected with a cross-shaped arm support, and two oppositely arranged feeding rollers and two oppositely arranged guide rollers are connected between the outer side ends of the two arm supports; a rack is arranged on one side of the fixed frame, and a rotating shaft is rotatably arranged on the rack; a cam is fixed at one end of the rotating shaft, a first telescopic cylinder is rotatably connected at the convex position of the cam and is obliquely fixed on the rack; and a cutter frame is fixedly connected to the rotating shaft, and a film pressing roller and a cutter are arranged on the cutter frame.

In the roll changing device for the film printing and dyeing machine, a plurality of convex strips which are symmetrically distributed are arranged at two end parts of the outer side surface of the feeding roller, and the top surface of each convex strip is obliquely and downwards arranged along the direction from the end part to the middle part of the feeding roller.

In the roll changing device for the film dyeing machine, the end parts, correspondingly connected with the two feeding rollers, of the arm support are respectively provided with the clamping seat, each clamping seat comprises the base and the snap ring hinged to the base, a circular cavity is formed between the snap ring and the base, and the end parts of the snap rings and the base are connected with the fixing screws.

In the roll changing device for the film dyeing machine, the cutting knife is fixedly connected with the rotating rod, and the end part of the rotating rod is rotatably connected to the cutting knife rest; one end fixedly connected with connecting block of bull stick rotates on the connecting block and is connected with No. two telescopic cylinder of fixing on the cutter frame.

Compared with the prior art, the utility model improves the prior coil changing device, the fixed frames are fixedly connected with the top ends of the two vertically arranged telescopic cylinders, the rotating shaft is connected between the two fixed frames, the cross-shaped arm frame is fixedly connected with the two end parts of the rotating shaft, the two oppositely arranged feeding rollers and the two oppositely arranged guide rollers are connected between the four end parts of the two arm frames, the rotating shaft is rotated by the motor to drive the arm frames to rotate, thereby the coil changing and replacing are carried out on the film coils on the two feeding rollers, and the two guide rollers can play the roles of tensioning the film and assisting in guiding when in coil changing; the cutter frame on one side of the fixed frame can press the film on the feeding roller through the film pressing roller, and then the film between the guide roller and the other feeding roller is cut off through the cutter, so that roll changing is completed; and through the flexible of the telescoping cylinder of two vertical settings, the control needs the material loading roller of changing the film book again to be close ground, need not additionally to adopt handling tool, and direct manual work rolls the material loading roller that the cover has new film book to cantilever crane position department to carry out the change of material loading roller, it is more convenient to operate and equipment cost is lower. In addition, the utility model discloses all be provided with many sand grips on the both ends of well feeding roller lateral surface, all sand grips symmetric distribution is in the both sides of feeding roller central line, and all sand grips all are the slope form from the outside to the middle part, and this makes the film book that the material loading roller overcoat was established have the trend of moving towards material loading roller middle part, guarantees that the film book can overlap in the middle part of material loading roller, and is difficult to take place the off normal when the follow-up material loading of film book, and material loading stability is stronger; the end parts of the arm support correspondingly connected with the two feeding rollers are provided with clamping seats, and the opening and closing of the snap rings on the clamping seats and the base are controlled through fixing screws, so that the feeding rollers are conveniently taken and placed; drive the cam through telescopic cylinder and rotate for fixed axis of rotation drives the cutter saddle and is close to the film on the cam, and makes the film pressing roller press the film on the material loading roller, and telescopic cylinder promotes the one end of connecting block No. two of rethread, makes the connecting block drive the bull stick and rotates, thereby makes the cutter on the bull stick cut the film, accomplishes the change of lap, and it is more convenient to operate. Therefore, the utility model discloses not only can conveniently operate, still have the lower and stronger advantage of material loading stability of equipment cost.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic structural view of the rotary rod, the connecting block and the cutter;

fig. 3 is a schematic structural view of the feeding roller.

The labels in the figures are: the device comprises a telescopic cylinder 1, a fixed frame 2, a rotating shaft 3, an arm support 5, a feeding roller 6, a guide roller 7, a rack 8, a rotating shaft 9, a cam 10, a telescopic cylinder 11, a telescopic cylinder 12, a cutter frame 13, a film pressing roller 14, a cutter, a convex strip 15, a base 16, a buckle 17, a fixing screw 18, a rotating rod 19, a connecting block 20 and a telescopic cylinder 21.

Detailed Description

The following description is made with reference to the accompanying drawings and examples, but not to be construed as limiting the invention.

Examples are given. A roll changing device for a film dyeing machine is shown in figures 1 to 3 and comprises two vertically arranged telescopic cylinders 1, wherein the tops of the two telescopic cylinders 1 are connected with a fixed frame 2; a rotating shaft 3 is rotatably connected between the two fixing frames 2, and one end of the rotating shaft 3 is connected with a motor fixed on the fixing frame 2; two ends of the rotating shaft 3 are fixedly connected with cross-shaped arm supports 5, and two oppositely arranged feeding rollers 6 and two oppositely arranged guide rollers 7 are connected between the outer side ends of the two arm supports 5; a rack 8 is arranged on one side of the fixed frame 2, and a rotating shaft 9 is rotatably arranged on the rack 8; a cam 10 is fixed at one end of the rotating shaft 9, a first telescopic cylinder 11 is rotatably connected at the convex position of the cam 10, and the first telescopic cylinder 11 is obliquely fixed on the rack 8; and a cutter frame 12 is fixedly connected to the rotating shaft 9, and a film pressing roller 13 and a cutter 14 are arranged on the cutter frame 12.

A plurality of convex strips 15 which are symmetrically distributed are arranged on two end parts of the outer side surface of the feeding roller 6, and the top surface of each convex strip 15 is obliquely and downwards arranged along the direction from the end part to the middle part of the feeding roller 6; the end parts of the two feeding rollers 6 correspondingly connected to the arm support 5 are respectively provided with a clamping seat, each clamping seat comprises a base 16 and a snap ring 17 hinged to the base 16, a circular cavity is arranged between the snap ring 17 and the base 16, and a fixing screw 18 is connected between the end part of the snap ring 17 and the base 16; the cutter 14 is fixedly connected with a rotating rod 19, and the end part of the rotating rod 19 is rotatably connected to the cutter frame 12; one end of the rotating rod 19 is fixedly connected with a connecting block 20, and a second telescopic cylinder 21 fixed on the cutting tool rest 12 is rotatably connected on the connecting block 20.

The working principle is as follows: in an initial state, the cross-shaped arm support 5 is obliquely arranged, the feeding roller 6 at one end of the arm support 5 is positioned at the highest end, and the feeding roller 6 at the other end of the arm support 5 is positioned at the lowest end; when the film roll on the feeding roller 6 at the highest end side is nearly used up, the starting motor drives the rotating shaft 3 to rotate, so that the rotating shaft 3 drives the arm supports 5 at the two end parts to rotate; the feeding roller 6 at the highest end rotates to the highest point and then moves downwards, and the feeding roller 6 at the lowest end rotates to the lowest point and then moves upwards until the positions of the two feeding rollers 6 are interchanged; the guide rollers 7 at the other two ends of the arm support 5 can support the film output from the feeding roller 6 which rotates over the highest point, so that the conveying angle of the film is ensured, the conveyed film cannot be attached to the film roll on the feeding roller 6 which rotates over the lowest point too early, and the conveying stability is high.

Then, starting a first telescopic cylinder 11 obliquely fixed on the rack 8, enabling the first telescopic cylinder 11 to push a protruding position on a cam 10, and enabling the cam 10 to drive a rotating shaft 9 on the rack 8 to rotate, so that a cutting tool rest 12 on the rotating shaft 9 is close to a feeding roller 6 rotating past the lowest point; at the moment, the film pressing roller 13 on the cutter frame 12 presses the film on the film roll on the feeding roller 6 rotating to the lowest point, so that the adhesive tape at the film rolling head is adhered to the film in conveying, and the film roll on the feeding roller 6 rotating to the lowest point is driven to start conveying; meanwhile, the second telescopic cylinder 21 is started to push the connecting block 20, the connecting block 20 drives the rotating rod 19 to rotate, so that the film on the feeding roller 6 rotating to the highest point is cut off by the cutter 14 on the rotating rod 19, and roll changing is completed.

Then the feeding roller 6 with the film roll used up needs to be replaced, firstly, the telescopic cylinder 1 is shortened to lower the fixing frame 2, and the feeding roller 6 with the film roll used up is close to the ground; then, the fixing screw 18 is unscrewed, and the retaining ring 17 is opened to take the feeding roller 6 off the base 16; then, the residual film is taken down from the feeding roller 6, a new film roll is sleeved in the middle of the feeding roller 6, a plurality of convex strips 15 are arranged at two end parts of the outer side wall of the feeding roller 6, all the convex strips 15 are symmetrically distributed at two sides of the central line of the feeding roller 6, and all the convex strips 15 are in an inclined shape from the outer side to the middle part, so that the film roll sleeved outside the feeding roller 6 has the tendency of moving towards the middle part of the feeding roller 6, the film roll can be stably sleeved in the middle of the feeding roller 6, the film roll is not easy to deviate during subsequent feeding, and the feeding stability is strong; and finally, placing the feeding roller 6 sleeved with a new film roll on the base 16, buckling the buckle 17 on the feeding roller 6, fixing the buckle 17 and the base 16 by using the fixing screw 18, and resetting the telescopic cylinder 1.

Claims (4)

1. The utility model provides a film dyeing machine is with roll change device which characterized in that: comprises two vertically arranged telescopic cylinders (1), and the tops of the two telescopic cylinders (1) are both connected with a fixed frame (2); a rotating shaft (3) is rotatably connected between the two fixing frames (2), and one end of the rotating shaft (3) is connected with a motor fixed on the fixing frames (2); two ends of the rotating shaft (3) are fixedly connected with cross-shaped arm supports (5), and two oppositely arranged feeding rollers (6) and two oppositely arranged guide rollers (7) are connected between the outer side ends of the two arm supports (5); a rack (8) is arranged on one side of the fixed frame (2), and a rotating shaft (9) is rotatably arranged on the rack (8); a cam (10) is fixed at one end of the rotating shaft (9), a first telescopic cylinder (11) is rotatably connected at the protruding position of the cam (10), and the first telescopic cylinder (11) is obliquely fixed on the rack (8); and a cutter frame (12) is fixedly connected to the rotating shaft (9), and a film pressing roller (13) and a cutter (14) are arranged on the cutter frame (12).

2. The roll changer for a film printing machine according to claim 1, characterized in that: all be provided with many sand grips (15) that are the symmetric distribution on the both ends of material loading roller (6) lateral surface, the top surface of every sand grip (15) all is the slope and sets up downwards along the direction of the tip to the middle part of material loading roller (6).

3. The roll changer for a film printing machine according to claim 1, characterized in that: the end parts, correspondingly connected with the two feeding rollers (6), on the arm support (5) are provided with clamping seats, each clamping seat comprises a base (16) and a snap ring (17) hinged on the base (16), a circular cavity is arranged between the snap ring (17) and the base (16), and a fixing screw (18) is connected between the end part of the snap ring (17) and the base (16).

4. The roll changer for a film printing machine according to claim 1, 2 or 3, characterized in that: a rotating rod (19) is fixedly connected to the cutter (14), and the end part of the rotating rod (19) is rotatably connected to the cutter frame (12); one end fixedly connected with connecting block (20) of bull stick (19), rotate on connecting block (20) and be connected with No. two telescopic cylinder (21) of fixing on cutter frame (12).

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