CN114348744A - Processing device convenient for punching easily-torn line on PVC (polyvinyl chloride) film - Google Patents

Abstract

The invention provides a processing device convenient for perforating easy-tear lines on PVC films, comprising a bed frame, and two ends of the bed frame are respectively provided with an unwinding roller and a winding roller driven synchronously by a motor. Two sets of guide rollers are arranged between the rollers. It is characterized in that a punching roller that rotates synchronously with the PVC film is arranged between the guiding rollers. There is a punching roller that rotates synchronously with the PVC film. The surface of the punching roller is provided with a punching knife. When the PVC film passes through the position of the punching knife, the punching knife will punch the surface of the PVC film. The punching roller follows the PVC film. The film moves synchronously and has no relative displacement, which can effectively reduce the tearing effect of the perforated structure on the PVC film, improve the yield, and also increase the processing speed, which has a good development prospect.

Description

A processing device for easy-tear line punching on PVC film

technical field

The invention relates to the field of PVC film processing, in particular to a processing device for convenient perforation of PVC films.

Background technique

Easy tearing line is a pressure line that is easy to tear. It is mostly found on paper products or plastic products. Products with easy tearing lines do not need scissors or violent tearing. Just gently pull with both hands. , it can realize the tearing of the article, and the easy tearing line is generally processed by the equipment using the dotted line cutting hob or the point line knife.

The existing easy-tear line processing equipment, such as a POF heat-shrinkable film punching device with application number CN201922479195.3, includes a frame body and a platen, and the top of the platen is sequentially provided with a first guide roller, The support roller, the second guide roller, the third guide roller and the take-up roller, the first guide roller, the support roller and the second guide roller are V-shaped, the frame body is fixed with a stepper motor and a cylinder, and the stepper motor is connected to receive the reel Roller, the end of the piston rod of the cylinder penetrates the table plate and is fixed with a connecting plate, the top of the connecting plate is fixed with a needle plate, and a row of punching needles corresponding to the support roller is installed on the needle plate, which passes through the connecting plate that moves up and down. The punching hole is aimed at the continuous winding of the PVC film. However, during the punching process, the PVC film is in a continuous winding process, and the connecting plate can only move up and down through the air cylinder. If the PVC film winding speed If it is too fast, the PVC film will be torn due to the excessive relative displacement with the punching needle, which also limits the punching speed of the PVC film, which is not conducive to the improvement of production efficiency.

Therefore, there is a need for an easy tearing line punching processing equipment that has a fast winding speed of the PVC film and is not easy to cause the PVC film to tear.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a processing device which is convenient for perforating the easy-tear line on the PVC film.

To achieve the above object, the present invention provides the following technical solutions:

A processing device for easy-tear line punching on PVC film, comprising a bed frame, two ends of the bed frame are respectively provided with an unwinding roller and a winding roller driven synchronously by a motor, and the unwinding roller and the winding roller are arranged between the unwinding roller and the winding roller. There are two sets of guide rollers, which are characterized in that a punching roller that rotates synchronously with the PVC film is arranged between the guiding rollers, and a pressing belt that is driven synchronously with the punching roller is arranged at the bottom of the punching roller.

As a further scheme of the present invention: the punching roller includes a roller and a punching knife, the roller is connected to the inner side of the bed frame by horizontal rotation, and is driven synchronously with the unwinding roller and the winding roller by a motor, and the circumferential direction of the roller is vertical. A knife groove is recessed, and a punching knife that can float up and down to protrude from the surface of the knife groove or shrink into the knife groove is arranged in the knife groove.

As a further solution of the present invention: the punching roller also includes a driving motor, a threaded rod, a guide ring and a connecting rod, and a threaded rod rotatably connected in the roller is arranged at the bottom of the kerf, and one end of the threaded rod protrudes from the end face of the roller. It is connected with the drive motor fixed on the end face of the roller. The threaded rod is a threaded rod with opposite thread directions on both sides. A guide ring is provided on both sides through a threaded sleeve. The guide ring is inclined and hinged with a connecting rod. The other end of the connecting rod Hinged at the bottom of the hole punch.

As a further scheme of the present invention: a hydraulic oil cylinder and a telescopic rod are integrated in the roller of the punching roller, the telescopic rod is arranged at the bottom of the groove of the roller, and is perpendicular to the surface of the roller, and the top is connected with a punching knife, and the punching knife Through the telescopic drive of the telescopic rod, the knife groove can be protruded or stored in the knife groove.

As a further solution of the present invention, the electrical equipment on the punching roller is powered by the slip rings and brushes provided at the rotating shaft of the punching roller and on the bed frame.

As a further solution of the present invention: the pressing belt is fixed on the lower side of the punching roller through the pressing roller, and the highest point of the pressing roller is set higher than the lowest point of the punching roller.

As a further solution of the present invention: there are three pressing rollers in total, the three pressing rollers are arranged in an inverted triangle, the installation positions of the two pressing rollers on the upper side are fixed, and the installation position of the pressing roller at the bottom is movably set, which can be carried out. The height adjustment in the vertical direction is fixed by the bolt assembly.

As a further scheme of the present invention: one side of the two fixed pressing rollers and the punching roller are provided with transmission wheels, the transmission wheels are connected by a transmission belt, and the transmission wheels of the pressing roller and the punching roller are connected by a transmission ratio Set so that the nip belt moves at the same speed as the punch roller surface.

As a further solution of the present invention, the transmission wheel is a helical gear, and the transmission belt is a corresponding helical belt.

As a further solution of the present invention: the front side of the punching roller is provided with a static eliminator which is horizontally arranged in the bed frame.

beneficial effect

1. The present invention is provided with a punching roller that rotates synchronously with the PVC film. The surface of the punching roller is provided with a punching knife. When the PVC film passes through the position of the punching knife, the punching knife will punch the surface of the PVC film. The punching roller moves synchronously with the PVC film without relative displacement, which can effectively reduce the tearing effect of the punching structure on the PVC film, improve the yield and processing speed.

2. The punching knives on the surface of the punching roller of the present invention are floating settings. By controlling the floating state and floating period of the punching knives in the knife grooves at different positions, the adjustment of the distance between the easy-to-tear lines on the surface of the PVC film can be realized, so that the It is suitable for punching requirements of different specifications.

3. The underside of the punching roller of the present invention is provided with a pressing belt that runs synchronously. The pressing belt can fix the PVC film and assist in punching. At the same time, the surface of the punching roller brought by the floating punching knife When the height changes, when the punching knife is punching, the reaction force of the pressing belt to the punching knife is also enhanced, which acts on the PVC film and squeezes the PVC film to the punching knife to assist the punching.

Description of drawings

FIG. 1 is a schematic diagram of the overall structure of the present invention.

FIG. 2 is a schematic diagram of the installation of the PVC film roll of the present invention.

Figure 3 is a schematic diagram of the drive roller transmission of the present invention.

FIG. 4 is a cross-sectional view of the structure of the punching roller of the present invention.

FIG. 5 is an enlarged schematic view of the structure at A in FIG. 4 of the present invention.

In Figure 1-5: 1-bed frame, 2-unwinding roller, 3-guide roller, 4-punching roller, 401-roller shaft, 402-drive motor, 403-threaded rod, 404-guide ring, 405- Connecting rod, 406-punch knife, 5-pressing belt, 6-pressing roller, 7-transmission wheel, 8-transmission belt, 9-static eliminator, 10-winding roller.

Detailed ways

The specific technical solutions of the present invention will be clearly and completely described below with reference to Figures 1 to 5 in the accompanying drawings of the present invention;

Please refer to FIGS. 1 to 5. FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention; FIG. 2 is a schematic diagram of the installation of a PVC film roll of the present invention; A cross-sectional view of the structure of the punching roller; FIG. 5 is an enlarged schematic view of the structure at A of FIG. 4 of the present invention.

Example 1

The present embodiment provides a processing device for easy perforation of easy-tear lines on PVC films, which includes a bed frame 1, and two ends of the bed frame 1 are respectively provided with an unwinding roller 2 and a winding roller 10 that are synchronously driven by a motor. Two sets of guide rollers 3 are arranged between the unwinding roller 2 and the winding roller 10. It is characterized in that a punching roller 4 that rotates synchronously with the PVC film is arranged between the guiding rollers 3, and the bottom of the punching roller 4 is provided with The punching roller 4 is synchronously driven by the pressing belt 5.

Further, as shown in FIG. 4 , the punching roller 4 includes a roller 401 and a punching knife 406 . The roller 401 is connected to the inner side of the bed frame 1 in a horizontal rotation, and is synchronized with the unwinding roller 2 and the winding roller 10 through a motor. Drive, the surface of the roller 401 is vertically concave with a knife groove, and the knife groove is provided with a punching knife 406 that can float up and down to protrude from the surface of the knife groove or shrink into the knife groove;

Through the circumferentially arranged knife grooves and the punching knives 406 floating in the knife grooves, and by controlling the floating state and floating period of the punching knives 406 in the knife grooves at different positions, the easy tearing line interval on the surface of the PVC film can be realized. The distance can be adjusted to suit the punching requirements of different specifications.

The punching roller 4 also includes a drive motor 402, a threaded rod 403, a guide ring 404 and a connecting rod 405. The bottom of the knife groove has a threaded rod 403 rotatably connected in the roller 401, and one end of the threaded rod 403 extends from the roller The end face of 401 protrudes out and is connected to the drive motor 402 fixed on the end face of the roller 401. The rotating shaft of the punching roller 4 and the bed frame 1 are provided with corresponding slip rings and brushes to supply power to the drive motor 402, and the threaded rods 403 are threaded on both sides. The threaded rod 403 in the opposite direction is provided with a guide ring 404 through a threaded sleeve on both sides, a connecting rod 405 is hinged on the guide ring 404 obliquely, and the other end of the connecting rod 405 is hinged on the bottom of the punching knife 406;

When the driving motor 402 rotates, driven by opposite threads on both sides of the threaded rod 403, the two guide rings 404 move in opposite directions, and the distance between the guide rings 404 is shortened or increased, thereby driving the punching knife 406 through the change of the position and angle of the connecting rod 405. Movement to realize the adjustment of the floating state of the punching knife 406 .

Further, as shown in FIG. 2 , the pressing belt 5 is fixed on the lower side of the punching roller 4 by three pressing rollers 6 , the three pressing rollers 6 are arranged in an inverted triangle, and the two pressing rollers 6 on the upper side are arranged in an inverted triangle. The installation position is fixed, the highest point is higher than the lowest point of the punching roller 4, and the installation position of the pressing roller 6 at the bottom is movably set, which can be adjusted in the vertical direction and fixed by the bolt assembly;

Through the setting of the position of the upper nip roller 6, a V-shaped structure is formed between the top of the nip roller 6 and the low point of the punching roller 4, so that the pressing belt 5 abuts the lowest point of the punching roller 4, so that the PVC film can be compressed. Fixing, and applying pressure to the PVC film to ensure the punching effect, the movable setting of the bottom pressing roller 6 makes the shape of the pressing belt 5 adjustable to adapt to the installation of punching rollers 4 with different diameters.

Among them, one side of the two fixed pressing rollers 6 and the punching roller 4 is provided with a transmission wheel 7, and the transmission wheel 7 is connected by a transmission belt 8. The transmission wheel 7 is a helical gear, and the transmission belt 8 is a corresponding The helical toothed belt, the driving wheel 7 of the pressing roller 6 and the punching roller 4 makes the surface movement speed of the pressing belt 5 and the punching roller 4 consistent through the setting of the transmission ratio;

Through the length of the transmission wheel 7 and the transmission belt 8, the pressing belt 5 and the punching roller 4 are kept in synchronous movement, and the setting of the helical gear makes the transmission more stable.

Further, the front side of the punching roller 4 is provided with a static eliminator 9 horizontally placed in the bed frame 1;

The static electricity on the surface of the PVC film is eliminated by the setting of the static eliminator 9, so as to prevent the adsorption caused by the static electricity on the surface of the PVC film from affecting the punching effect.

When implementing the scheme of this embodiment, the unprocessed PVC film coil is installed on the unwinding roller 2, and the head end of the PVC film is sequentially detoured from the outside of the guide roller 3 and the punching roller 4, and finally wound up to the On the rewinding roller 10, the device is started, and the motor set in the bed frame 1 drives the unwinding roller 2 and the rewinding roller 10 to rotate, thereby driving the PVC film to move. The surface is electrostatically charged, then passes through the surface of the punching roller 4, and the PVC film is subjected to the action of the bottom pressing belt 5, and is attached to the surface of the punching roller 4. The driving motor 402 on the side of the punching roller 4 drives the threaded rod 403 according to the set program. Rotate, drive the punching knife 406 on the surface of the punching roller 4 to float, and adjust the punching gap. When there is a punching knife 406 protruding from the surface of the punching roller 4, the punching knife 406 is in contact with the PVC film, and the easy-tear line is punched. During the drilling operation, with the rotation of the punching roller 4, the length of the punching knife 406 in the vertical direction is gradually increased. When the punching knife 406 runs to the vertical downward position, the force on the pressing belt 5 is the largest, That is, the reaction force of the pressing belt 5 to the punching knife 406 is the largest, and the force acts on the PVC film between the punching knife 406 and the pressing belt 5 to assist punching. Winding is performed at the winding roll 10.

Example 2

The difference between this embodiment and Embodiment 1 is that the roller 401 of the punching roller 4 is integrated with a hydraulic oil cylinder and a telescopic rod. The telescopic rod is arranged at the bottom of the knife groove of the roller 401 and is perpendicular to the surface of the roller. A punching knife is connected, and the punching knife is driven out of the knife groove or stored in the knife groove by the telescopic drive of the telescopic rod.

When implementing the scheme of this embodiment, the unprocessed PVC film coil is installed on the unwinding roller 2, the head end of the PVC film is detoured from the outside of the guide roller 3 and the punching roller 4 in turn, and finally wound to the winding On the winding roller 10, start the device, the motor set in the bed frame 1 drives the unwinding roller 2 and the winding roller 10 to rotate, thereby driving the PVC film to move, and the PVC film is guided by the guide roller and passes through the static eliminator 9 to eliminate surface static electricity After passing through the surface of the punching roller 4, the telescopic rod on the surface of the punching roller 4 telescopically moves according to the set program, driving the punching knife 406 on the surface of the punching roller 4 to float, adjusting the punching gap, and the PVC film by the bottom pressing belt. 5, it is attached to the surface of the punching roller 4. When there is a punching knife 406 protruding from the surface of the punching roller 4, the punching knife 406 is in contact with the PVC film, and the punching operation of the easy tearing line is carried out. The rotation of the roller 4 is affected by the gradual increase of the length of the punching knife 406 in the vertical direction. When the punching knife 406 runs to the vertical downward position, the force on the pressing belt 5 is the largest, that is, the pressing belt 5 is punched against each other. The reaction force of the hole knife 406 is the largest, and the force acts on the PVC film between the hole punch 406 and the pressing belt 5 to assist punching. .

Claims (10)

1. The utility model provides an easily tear line and punch and use processingequipment convenient to PVC film, a serial communication port, include:

the bed frame (1) is placed on the ground and used for basically installing and fixing other components;

the unwinding roller (2) is arranged at one end of the bedstead (1) and is driven by a motor to unwind the raw material PVC film;

the winding roller (10) is arranged at one end of the bedstead (1), which is opposite to the unwinding roller (2), and is driven by a motor to wind the punched PVC film;

the guide roller (3) is arranged between the unwinding roller (2) and the winding roller (10) and used for guiding and adjusting the angle of the PVC film raw material;

the punching roller (4) is arranged between the guide rollers (3) and rotates at the same speed as the PVC film to punch the PVC film;

and the material pressing belt (5) is arranged below the punching roller (4), is abutted against the lower surface of the punching roller (4), and is used for assisting and fixing punching of the PVC film.

2. The device for facilitating the perforation of easy-tear lines on PVC films according to claim 1, characterised in that said perforating roller (4) comprises:

the rolling shaft (401) is transversely arranged on the inner side of the bedstead (1), is rotatably connected with the bedstead (1), is synchronously driven by a motor, the unreeling roller (2) and the reeling roller (10), and is vertically and concavely provided with a cutter groove on the circumferential surface;

the perforating knife (406) is arranged in the knife groove and can vertically float to extend out of the surface of the knife groove or retract into the knife groove.

3. The device for facilitating the perforation of easy-to-tear lines on PVC films according to claim 2, characterized in that said perforating roller (4) further comprises:

the threaded rod (403) is rotatably arranged at the bottom of the cutter groove, and two sides of the threaded rod (403) are provided with threads in opposite directions;

the driving motor (402) is fixed on the end face of the rolling shaft (401), and the output end of the driving motor is in transmission connection with the threaded rod (403);

the guide rings (404) are in a pair and are respectively sleeved on the opposite threads at the two sides of the threaded rod (403) through the inner threads;

and the connecting rod (405) is obliquely arranged, and two ends of the connecting rod are respectively hinged to the bottoms of the guide ring (404) and the punching knife (406).

4. The processing device for facilitating the punching of the easily torn line on the PVC film as claimed in claim 2, is characterized in that: the hydraulic cylinder and the telescopic link are integrated in the roller (401), the telescopic link is arranged at the bottom of the cutter groove of the roller (401) and perpendicular to the surface of the roller (401), the top of the roller is connected with a punching cutter (406), and the punching cutter (406) is driven by the telescopic link to extend out of the cutter groove or be accommodated in the cutter groove.

5. The processing device for facilitating the punching of the easily torn line on the PVC film as claimed in claim 3 or 4, wherein: the punching roller (401) is further provided with a slip ring, the bed frame (1) is provided with a corresponding electric brush, and electric equipment on the punching roller (401) is powered through the slip ring and the electric brush.

6. The processing device for facilitating the punching of the easily torn line on the PVC film as claimed in claim 1, is characterized in that: the material pressing belt (5) is fixed on the lower side of the perforating roller (4) through a material pressing roller (6), and the highest point of the material pressing roller (6) is higher than the lowest point of the perforating roller (4).

7. The processing device for facilitating the punching of the easily torn line on the PVC film as claimed in claim 6, wherein: the three pressure rolls (6) are arranged in an inverted triangle manner, the mounting positions of the two pressure rolls (6) on the upper side are fixedly arranged, the mounting positions of the pressure rolls (6) at the bottom are movably arranged, height adjustment in the vertical direction can be performed, and the pressure rolls are fixed through bolt assemblies.

8. The processing device for facilitating the punching of the easily torn line on the PVC film as claimed in claim 7, wherein: and one side of each of the two fixed material pressing rollers (6) and one side of each of the punching rollers (4) are respectively provided with a driving wheel (7), the driving wheels (7) are in transmission connection through a driving belt (8), and the material pressing rollers (6) and the driving wheels (7) of the punching rollers (4) are arranged through a transmission ratio so that the surface movement speeds of the material pressing belts (5) and the punching rollers (4) are consistent.

9. The processing device for facilitating the punching of the easily torn line on the PVC film as claimed in claim 8, wherein: the transmission wheel (7) is a helical gear, and the transmission belt (8) is a corresponding helical belt.

10. The processing device for facilitating the punching of the easily torn line on the PVC film as claimed in claim 1, is characterized in that: the front side of the perforating roller (4) is provided with a static eliminator (9) which is transversely arranged in the bedstead (1).

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