CN114604693B - Film cutting machine for plastic film coil stock and use method - Google Patents

Abstract

The present invention discloses a film cutting machine for plastic film coils, comprising a conveying mechanism, a square frame plate and a winding roller mechanism. Two groups of square frame plates arranged side by side are installed on the top of the conveying mechanism. A winding roller mechanism is installed on the top of the two groups of conveying square frame plates. The winding roller mechanism is constructed of a clamping column, a circular side plate, a circular cylinder and an arc-shaped pressure plate. The number of the clamping columns and the circular side plates are both two groups. The two groups of clamping columns are respectively installed at the top depressions of the two groups of square frame plates. The two groups of circular side plates are respectively installed on the outer walls of one side opposite to the two groups of clamping columns. A notch is provided on the top of the circular cylinder. The circular cylinder and the arc-shaped pressure plate are both installed between the two groups of circular side plates. The present invention can increase the anti-loosening function of the film coil and the winding roller mechanism, and the square frame plate on which the winding roller mechanism is installed and the combination plate are in a plug-in assembly state. At the same time, the film cutting machine has the functions of flat cutting and distance monitoring for winding and unwinding the film coil.

Description

Film cutting machine for plastic film roll and use method thereof

Technical Field

The invention relates to the technical field of film cutting machines, and in particular to a film cutting machine for plastic film rolls and a use method thereof.

Background technique

Plastic film is generally used to stick to the outer surface of aluminum plate. When using it, the plastic film roll needs to be cut according to the distance and width of the aluminum plate. Since the roller body of the wound plastic film and the tail end of the plastic film cannot be fixed, the plastic film is prone to loosening. Therefore, the necessity of adding measures to clamp the plastic film to the roller body is self-evident.

The defects of the existing film cutting machine are:

1. Patent document CN110356894A discloses a film cutting machine. "In view of the problem that the existing film cutting machine cannot automatically replace the collecting roller after the protective film is wound, manual replacement of the collecting roller is time-consuming and labor-intensive, and the number of rolls of the protective film cannot be automatically measured, it is difficult to ensure the accuracy of the measurement result, and the working efficiency of the film cutting machine is reduced, the following scheme is proposed, which includes a film cutting machine body, an operating table is fixedly installed on the top of the film cutting machine body, two fixed plates are fixedly installed on one side of the operating table, and the sides of the two fixed plates close to each other are provided with mounting plates, and the sides of the two mounting plates close to each other are provided with sliding holes. The present application has a simple structure and is easy to operate. The film cutting machine body can automatically replace the collecting roller after the protective film is wound, and can automatically measure the number of rolls of the protective film, which saves time and labor, improves the working efficiency of the film cutting machine body, and can also perform temperature detection on the film cutting machine body at the same time to prevent over-temperature operation." However, in this device, after the plastic film is wound on the outer surface of the roller body, the rolled plastic film is prone to loosening, which in turn affects the subsequent cutting quality;

2. Patent document CN103318689A discloses a film cutting machine, "including a bracket, on which a film feeding roller, a film outlet and a driving device are provided, the film outlet is located on one side of the film feeding roller, the film outlet is provided with a film cutting knife, one end of the film feeding roller is provided with a one-way bearing, a gear is fixed on the one-way bearing, the gear is provided with a rack matched with the one-way bearing, and the driving device drives the film feeding roller to operate by driving the rack. After adopting the above technical solution, the present application has the following advantages: the film feeding roller is driven to operate by the rack, and since the rack has a length, the film feeding roller also operates once when the rack runs one length unit, and the length of the film brought out each time it rotates reaches the same. "However, in this film cutting machine, the disassembly between the film feeding roller and the device is relatively unchanged, and it takes a lot of time to replace the plastic film wound on the film feeding roller after it is used up;

3. Patent document CN108927834A discloses a film cutting machine, "including a cutter frame, a cutter cylinder, a cutter, a cutter seat, two guide racks, two guide gears, and a guide shaft; the cutter frame is fixedly connected to the frame, the cylinder body of the cutter cylinder is fixedly installed on the top of the cutter frame, the piston rod end of the cutter cylinder passes downward through the cutter frame and is connected to the upper end of the cutter, the lower end of the cutter extends to the cutter seat, and the cutter seat is fixed to the frame; the two guide racks are respectively installed on the side walls of the cutter, and the two guide gears are fixed to the side walls of the cutter. The wheel is fixedly sleeved on the guide shaft and the two guide gears are respectively meshed with the two guide racks, and the guide shaft is rotatably mounted on the cutter frame. Since two guide racks are mounted on the side wall of the cutter of the present application, the two guide racks can mesh with the two guide gears, so that the cutter plays a role in stabilizing the cutter during the film cutting process, and the film cutting is more stable and accurate. "However, in this film cutting machine, when the plastic film is laid flat on the board surface before cutting, it is easy to be uneven, which in turn affects the overall cutting effect;

4. Patent document CN105922318A discloses a film cutting machine, "including a frame; a film roll, a film feeding device and a film cutting device are arranged on the frame; the film feeding device feeds the film of the film roll to the film cutting device; the frame is also provided with a clamping device for controlling the inertial rotation speed of the film roll; the clamping device is rotatably fixed on the frame; the film cutting device includes a cutter and a limit part for protecting the cutter; the limit part is fixed at one end or both ends of the cutter. Compared with the prior art, it avoids the film roll from continuing to rotate due to inertia after the film feeding device feeds the film, causing the film to scatter all over the ground. At the same time, under the limitation of the limit device, the damage to the cutter head is avoided, thereby extending the life of the film cutting machine." However, in this film cutting machine, when the plastic film is rolled up, the specific length of the rolled up film is difficult to monitor, so the cutting length of the film is greatly different from the actual set length, affecting the accuracy.

Summary of the invention

The object of the present invention is to provide a film cutting machine for plastic film rolls and a method of use to solve the problems raised in the above background technology.

To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a film cutting machine for plastic film rolls, comprising a conveying mechanism, a square frame plate and a winding roller mechanism, wherein two groups of square frame plates arranged side by side are installed on the top of the conveying mechanism, and the winding roller mechanism is installed on the top of the two groups of conveying square frame plates;

The winding roller mechanism is constructed of a locking column, a circular side plate, a circular cylinder, and an arc-shaped pressure plate. The locking columns and the circular side plates are both in two groups. The two groups of locking columns are respectively installed in the top recesses of the two groups of square frame plates, and the two groups of circular side plates are respectively installed on the outer walls of the two groups of locking columns on the opposite side. A notch is provided on the top of the circular cylinder, and the circular cylinder and the arc-shaped pressure plate are both installed between the two groups of circular side plates, and the outer wall of the arc-shaped pressure plate is in contact with the inner wall of the notch. The bottom wall of the circular cylinder is installed with two groups of adjustment mechanisms arranged side by side, and the tops of the adjustment mechanisms are in contact with the bottoms of the arc-shaped pressure plates.

Preferably, the adjustment mechanism is constructed of a miniature electric push rod, a threaded disk and a connecting ring, and the number of the threaded disk and the connecting ring are both two groups, the two groups of threaded disks are respectively installed on the top and bottom of the miniature electric push rod, and the two groups of connecting rings are respectively sleeved on the outer surfaces of the two groups of threaded disks, the bottom of one group of connecting rings is in contact with the bottom wall of the circular cylinder, and the top of the other group of connecting rings is in contact with the bottom of the arc-shaped pressure plate.

Preferably, grooves are provided on the front and back sides of the square frame plate, two groups of front-to-back arranged locking grooves are provided on the top of the square frame plate, a combination block is installed on the top of the square frame plate, two groups of front-to-back arranged plug-in plates are installed on the bottom of the combination block, and the bottoms of the two groups of plug-in plates respectively extend into the spaces of the two groups of locking grooves.

Preferably, the outer walls on the opposite sides of the two groups of plug plates are both equipped with extrusion springs and telescopic rods, and the extrusion springs surround the outer surface of the telescopic rods, and an anti-drop plate is installed at one end of the extrusion spring away from the plug plates.

Preferably, square plates are installed on the front of the two groups of square frames, multi-section electric extension rods are installed on the front of the two groups of square plates, long strips are installed on the front of the two groups of multi-section electric extension rods, multiple groups of telescopic springs arranged side by side are installed on the bottom of the long strips, and long pressing plates are installed on the bottom of the multiple groups of telescopic springs, two groups of fixed plates arranged side by side are installed on the top of the conveying mechanism, and the two groups of fixed plates are located in front of the square frames, and lower pressure rollers are installed on the outer walls of the opposite sides of the two groups of fixed plates.

Preferably, an embedded plate is installed on the top of one group of the multi-section electric extension poles, a distance sensor is embedded and installed on the front of the embedded plate, and the distance sensor is electrically connected to the multi-section electric extension poles, and a ranging plate is installed on the top of the long strip, and the ranging plate is located in front of the distance sensor.

Preferably, the outer surface of the winding roller mechanism is sleeved with a film roll sheet, the front sides of the two groups of square frame plates are both installed with connecting plates, and a guide roller is installed between the two groups of connecting plates.

Preferably, L-shaped folding plates are installed on the outer walls on both sides of the conveying mechanism, and a servo motor is installed on the outer wall of one side of one group of L-shaped folding plates, and a screw rod is installed on the output end of the servo motor through a shaft, and one end of the screw rod passes through the interior of the other group of L-shaped folding plates, and a slide cylinder is installed on the outer surface of the screw rod through a threaded engagement, a hydraulic cylinder is installed at the bottom of the slide cylinder, and a cutting knife is installed at the bottom of the hydraulic cylinder.

Preferably, the conveying mechanism is constructed of a frame plate, a drive motor, rollers and a conveyor belt. The number of the rollers is multiple groups, and the multiple groups of rollers are installed on the frame plate. The drive motor is installed on an outer wall of one side of the frame plate, and the output end of the drive motor is connected to one end of one group of rollers. The conveyor belt is installed on the outer surfaces of the multiple groups of rollers.

A method for using a film cutting machine for a plastic film roll comprises the following steps:

S1. Before the film roll is wound onto the outer surface of the winding roller mechanism, two sets of micro electric push rods are started to extend upwards, so as to drive the arc-shaped pressing plate to move upwards, thereby exposing the notch. Then, the worker places the tail end of the film roll inside the notch, and drives the two sets of micro electric push rods to return to their original positions downwards, driving the arc-shaped pressing plate to clamp the film roll at the notch, and then neatly winds the film roll onto the outer surface of the winding roller mechanism.

S2. The staff places the winding roller mechanism in step S1 on the two sets of square frame plates, and then applies extrusion force to the anti-slip plate so that the extrusion spring contracts inward until the combined thickness of the anti-slip plate, the extrusion spring and the plug plate is less than the inner width of the engaging groove, and then drives the assembly block to move downward so that its bottom is in contact with the top of the square frame plate, and the bottom of the plug plate extends into the space inside the engaging groove;

S3. The staff pulls the front end of the film roll, passes it under the guide roller and the lower pressure roller, and applies an upward pushing force to the long pressing plate, causing the telescopic spring to shrink in length while increasing the distance between the long pressing plate and the conveyor belt. Then, the front end of the film roll is inserted under the long pressing plate, and the pushing force on the long pressing plate is canceled. The long pressing plate returns to its original state and presses the film roll onto the conveyor belt. The drive motor and the multi-section electric extension rod are started synchronously, and the speed at which the drive motor causes the conveyor belt to rotate forward is consistent with the speed at which the multi-section electric extension rod extends forward, so as to drive the front end of the film roll to move forward until the distance between the distance sensor and the distance measuring plate reaches the set value, and the operation of the multi-section electric extension rod and the drive motor is stopped.

S4, start the hydraulic cylinder to make the bottom end of the cutting knife contact with the film roll, and then start the servo motor so that the cutting knife can perform cutting operation from one side to the other side along the surface of the film roll.

Compared with the prior art, the present invention has the following beneficial effects:

1. In the present invention, the arc-shaped pressing plate and the circular cylinder in the winding roller mechanism are in a non-fixed assembly, and the adjustment mechanism is operated upward to increase the distance between the arc-shaped pressing plate and the circular cylinder, and then the tail end of the film roll is clamped between the two, and then the arc-shaped pressing plate is embedded in the inner wall of the notch, which can clamp the tail end of the film roll to prevent the inner wall of the subsequent rolled film roll from not fitting tightly with the outer surface of the circular cylinder, thereby affecting the winding and cutting effects;

2. In the present invention, the assembly block and the square frame plate are in a plug-in state through the plug-in plate, and the two are easy to disassemble and assemble. The staff applies a squeezing force to the anti-slip plate to cause the squeezing spring to shrink its own comprehensive length until the comprehensive thickness of the anti-slip plate, the squeezing spring and the plug-in plate is less than the internal width of the engaging groove, and then applies an upward pulling force or a downward pushing force to the assembly block, which can drive the plug-in plate and the square frame plate to be disassembled and assembled;

3. In the present invention, the front end of the film roll passes through the bottom of the lower pressure roller and is at the bottom of the lower pressure roller. At this time, the film roll behind the cutting knife is close to the conveyor belt, and when the telescopic spring is not subjected to external force, the bottom of the pressing long plate is tightly fitted with the top of the conveyor belt. After that, the conveying mechanism and the multi-section electric extension rod operate synchronously to pull the film roll. The film roll between the lower pressure roller and the pressing long plate always remains flat, so that the edge of the subsequent cutting is straight, thereby ensuring the cutting effect to a certain extent.

4. In the present invention, the distance sensor can monitor the distance between itself and the distance measuring plate. When the film roll is rolled and unrolled by the driving motor and the multi-section electric extension rod, when the distance sensor detects that the distance between itself and the distance measuring plate reaches the set value, the operation of the multi-section electric extension rod and the driving motor electrically connected to it is stopped, thereby effectively ensuring that the length of the subsequent film roll cutting is within the set range.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the overall structure of the present invention;

FIG2 is a schematic structural diagram of a winding roller mechanism of the present invention;

FIG3 is a schematic structural diagram of the adjustment mechanism of the present invention;

FIG4 is a schematic diagram of the installation structure of the square frame plate, the assembly block and the plug plate of the present invention;

FIG5 is a schematic diagram of the installation structure of the long strip, the telescopic spring and the pressed long plate of the present invention;

FIG6 is a schematic diagram of the structure of point A in FIG1 of the present invention;

FIG7 is a schematic diagram of the structure of the screw rod, slide cylinder and hydraulic cylinder of the present invention;

FIG. 8 is a schematic diagram of the installation structure of the square frame plate and the winding roller mechanism of the present invention.

In the figure: 1. conveying mechanism; 2. square frame plate; 3. winding roller mechanism; 4. snap-fit column; 5. round side plate; 6. round cylinder; 7. arc pressure plate; 8. adjustment mechanism; 9. micro electric push rod; 10. threaded disk; 11. connecting ring; 12. groove; 13. snap-fit groove; 14. combination block; 15. plug plate; 16. extrusion spring; 17. telescopic rod; 18. anti-slip plate; 19. square plate; 20. multi-section electric extension rod; 21. long Slat; 22, telescopic spring; 23, long pressing plate; 24, fixed plate; 25, lower pressure roller; 26, embedded plate; 27, distance sensor; 28, distance measuring plate; 29, film roll; 30, connecting plate; 31, guide roller; 32, L-shaped folding plate; 33, servo motor; 34, screw rod; 35, slide; 36, hydraulic cylinder; 37, cutting knife; 38, frame plate; 39, drive motor; 40, roller; 41, conveyor belt.

Detailed ways

The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

A film cutting machine for plastic film rolls, comprising a conveying mechanism 1, a square frame plate 2 and a winding roller mechanism 3, wherein two groups of square frame plates 2 arranged side by side are installed on the top of the conveying mechanism 1, and the winding roller mechanism 3 is installed on the top of the two groups of conveying square frame plates 2;

The winding roller mechanism 3 is constructed of a locking column 4, a circular side plate 5, a circular cylinder 6, and an arc-shaped pressure plate 7. The number of the locking columns 4 and the circular side plates 5 are both two groups. The two groups of locking columns 4 are respectively installed in the top recesses of the two groups of square frame plates 2, and the two groups of circular side plates 5 are respectively installed on the outer walls of the opposite sides of the two groups of locking columns 4. A notch is provided on the top of the circular cylinder 6. The circular cylinder 6 and the arc-shaped pressure plate 7 are both installed between the two groups of circular side plates 5, and the outer wall of the arc-shaped pressure plate 7 is fitted with the inner wall of the notch. Two groups of adjusting mechanisms 8 arranged side by side are installed on the bottom wall of the circular cylinder 6, and the tops of the adjusting mechanisms 8 are fitted with the bottoms of the arc-shaped pressure plates 7.

In actual application of the film cutting machine, after the plastic film is wound on the outer surface of the roller body, the rolled plastic film is prone to loosening, which in turn affects the subsequent cutting quality. Therefore, in order to solve the problem of loose plastic film, the present invention, as shown in Figures 1, 2 and 3, provides an embodiment of the present invention, which also designs a winding roller mechanism 3 and an adjusting mechanism 8. The arc pressure plate 7 and the circular cylinder 6 in the winding roller mechanism 3 are in a non-fixed assembly, and after the two are combined with each other, a group of circular bodies can be formed to facilitate the winding of the film roll 29 on its outer surface. The adjusting mechanism 8 operates upward to increase the distance between the arc pressure plate 7 and the circular cylinder 6, and then the tail end of the film roll 29 is clamped between the two. After that, the arc pressure plate 7 is embedded in the inner wall of the groove, and the tail end of the film roll 29 can be clamped to prevent the inner wall of the subsequent rolled film roll 29 from being loosely fitted with the outer surface of the circular cylinder 6. The two groups of circular side plates 5 can effectively prevent the film roll 29 from being uneven on both sides when it is wound.

Among them, the adjustment mechanism 8 is constructed of a micro electric push rod 9, a threaded disk 10 and a connecting ring 11. The number of the threaded disk 10 and the connecting ring 11 are both two groups. The two groups of threaded disks 10 are respectively installed on the top and bottom of the micro electric push rod 9. The two groups of connecting rings 11 are respectively sleeved on the outer surfaces of the two groups of threaded disks 10. The bottom of one group of connecting rings 11 is in contact with the bottom wall of the circular cylinder 6, and the top of the other group of connecting rings 11 is in contact with the bottom of the arc pressure plate 7.

The micro electric push rod 9 is utilized to extend and retract up and down to drive the arc pressure plate 7 to adjust its position up and down. At the same time, the whole composed of the micro electric push rod 9 and the two sets of threaded disks 10 is in a detachable connection with the circular cylinder 6 and the arc pressure plate 7. The micro electric push rod 9 is extended upward to its longest state, and the internal threads of the two sets of connecting rings 11 are in opposite directions. Then, a rotational force in a set direction is applied to the micro electric push rod 9 to drive the two sets of threaded disks 10 to break contact with the two sets of connecting rings 11, so as to complete the disassembly operation of the micro electric push rod 9.

The front and back sides of the square frame plate 2 are both provided with grooves 12, the top of the square frame plate 2 is provided with two groups of front-to-back arranged engaging grooves 13, a combination block 14 is installed on the top of the square frame plate 2, and two groups of front-to-back arranged plug plates 15 are installed at the bottom of the combination block 14, and the bottoms of the two groups of plug plates 15 respectively extend into the space inside the two groups of engaging grooves 13, and the outer walls of the opposite sides of the two groups of plug plates 15 are both provided with extrusion springs 16 and telescopic rods 17, and the extrusion springs 16 are wrapped around the outer surface of the telescopic rod 17, and an anti-slip plate 18 is installed at the end of the extrusion spring 16 away from the plug plate 15.

In order to ensure that the winding roller mechanism 3 is easier to disassemble and assemble in the device, in the present invention, as another embodiment, as shown in Figures 1 and 4, the assembly block 14 and the square frame plate 2 are in an inserted state through the plug plate 15. When the two are out of contact, the staff applies an extrusion force to the anti-slip plate 18 in the two groups of grooves 12 set in the front and back, and then the extrusion force is transmitted to the location of the extrusion spring 16, prompting the extrusion spring 16 to shrink its own comprehensive length until the comprehensive thickness of the anti-slip plate 18, the extrusion spring 16 and the plug plate 15 is less than the internal width of the engaging groove 13, and then an upward pulling force is applied to the assembly block 14, which can drive The plug plate 15, the extrusion spring 16, the telescopic rod 17, the anti-drop plate 18 and the square frame plate 2 are out of contact, thereby achieving the purpose of easy disassembly. On the contrary, after the extrusion force is applied to the anti-drop plate 18, the plug plate 15 is prompted to extend downward into the interior of the engaging groove 13 until the anti-drop plate 18 and the groove 12 are on the same extension line. The extrusion force exerted on the extrusion spring 16 is canceled, and then the anti-drop plate 18 is restored to its original state while generating a pushing force towards the groove 12 to push the anti-drop plate 18 to the space inside the groove 12. At this time, the combination block 14 can be effectively prevented from being out of contact with the square frame plate 2.

Square plates 19 are installed on the front of the two groups of square frames 2, multi-section electric extension rods 20 are installed on the front of the two groups of square plates 19, long strips 21 are installed on the front of the two groups of multi-section electric extension rods 20, multiple groups of telescopic springs 22 arranged side by side are installed at the bottom of the long strips 21, and a pressing long plate 23 is installed at the bottom of the multiple groups of telescopic springs 22. Two groups of fixed plates 24 arranged side by side are installed on the top of the conveying mechanism 1, and the two groups of fixed plates 24 are located in front of the square frames 2, and lower pressure rollers 25 are installed on the outer walls of the opposite sides of the two groups of fixed plates 24.

In actual application of the film cutting machine, when the plastic film is laid flat on the board surface before cutting, it is easy to be uneven, which in turn affects the overall cutting effect. In order to solve the problem of uneven film laying, in the present invention, as shown in Figures 1 and 5, an embodiment is provided, and a pressing long plate 23 and a lower pressing roller 25 are also designed, wherein the front end of the film roll sheet 29 passes from under the lower pressing roller 25 and is at the bottom of the lower pressing roller 25. At this time, the film roll sheet 29 behind the cutting knife 37 is close to the state of being fitted with the conveyor belt 41, and then the conveying mechanism 1 and the multi-section electric extension rod 20 operate synchronously to pull the film roll sheet 29, and the driving motor 39 causes the conveyor belt 41 to rotate forward at a rate consistent with the rate at which the multi-section electric extension rod 20 extends forward, so that the film roll sheet 29 between the lower pressure roller 25 and the pressing long plate 23 always remains flat, so that the edges of subsequent cutting are in a straight line. The telescopic spring 22 itself has a certain elastic deformation ability, which can increase the adjustability of the distance between the pressing long plate 23 and the conveyor belt 41. When it is not subjected to external force, it can ensure that the bottom of the pressing long plate 23 is tightly fitted with the top of the conveyor belt 41. After the upward extrusion force is applied to the pressing long plate 23 and transmitted to the location of the telescopic spring 22, the distance between the pressing long plate 23 and the conveyor belt 41 can be increased.

An embedded plate 26 is installed on the top of one group of multi-section electric extension poles 20, and a distance sensor 27 is embedded and installed on the front of the embedded plate 26. The distance sensor 27 is electrically connected to the multi-section electric extension pole 20. A distance measuring plate 28 is installed on the top of the long plate 21, and the distance measuring plate 28 is located in front of the distance sensor 27.

In order to ensure that the length of the film roll 29 is cut more accurately, in the present invention, as shown in Figures 1 and 6, as another embodiment, the distance sensor 27 can always monitor the distance between itself and the distance measuring plate 28. When the film roll 29 is rolled up and unwound by the driving motor 39 and the multi-section electric extension rod 20, when the distance sensor 27 detects that the distance between itself and the distance measuring plate 28 reaches the set value, the operation of the multi-section electric extension rod 20 and the driving motor 39 electrically connected to it is stopped, thereby effectively ensuring that the length of the subsequent film roll 29 cut is within the set range.

The outer surface of the winding roller mechanism 3 is sleeved with a film roll sheet 29 , the front sides of the two sets of square frame plates 2 are both installed with connecting plates 30 , and a guide roller 31 is installed between the two sets of connecting plates 30 .

The connecting plate 30 and the square frame plate 2 are connected by screws, so that the two are detachable, and the guide roller 31 can effectively reduce the wrinkles of the film roll sheet 29 when it is rolled up.

L-shaped folding plates 32 are installed on the outer walls of both sides of the conveying mechanism 1, and a servo motor 33 is installed on the outer wall of one side of one group of L-shaped folding plates 32. A screw rod 34 is installed on the output end of the servo motor 33 through an axis, and one end of the screw rod 34 passes through the interior of the other group of L-shaped folding plates 32. A slide cylinder 35 is installed on the outer surface of the screw rod 34 through a threaded engagement, and a hydraulic cylinder 36 is installed at the bottom of the slide cylinder 35, and a cutting knife 37 is installed at the bottom of the hydraulic cylinder 36.

As shown in Figures 1 and 7, the hydraulic cylinder 36 is started to cause the bottom end of the cutting knife 37 to contact the film roll 29, and then the servo motor 33 is started so that its output shaft drives the screw 34 to rotate in a set direction, and then the slide 35 drives the bottom components to move in the appropriate direction so that the cutting knife 37 can perform cutting operations along the surface of the film roll 29 from one side to the other.

The conveying mechanism 1 is constructed of a frame plate 38, a drive motor 39, rollers 40 and a conveyor belt 41. There are multiple groups of rollers 40, and the multiple groups of rollers 40 are all installed on the frame plate 38. The drive motor 39 is installed on one side outer wall of the frame plate 38, and the output end of the drive motor 39 is connected to one end of one group of rollers 40. The conveyor belt 41 is installed on the outer surface of the multiple groups of rollers 40.

As shown in FIG8 , the frame plate 38 provides a relatively stable assembly site for the components on its top. After the drive motor 39 is started, its output end can drive one set of rollers 40 to rotate in a clockwise direction, and then drive the conveyor belt 41 to rotate, so as to complete the conveying operation of the objects above the conveyor belt 41.

A method for using a film cutting machine for a plastic film roll comprises the following steps:

S1. Before the film roll 29 is wound onto the outer surface of the winding roller mechanism 3, two sets of micro electric push rods 9 are started to extend upwards, so as to drive the arc pressure plate 7 to move upwards, and then the notch is exposed. Then, the worker places the tail end of the film roll 29 inside the notch, and drives the two sets of micro electric push rods 9 to return to their original positions downwards, driving the arc pressure plate 7 to clamp the film roll 29 at the notch, and then the film roll 29 is neatly wound onto the outer surface of the winding roller mechanism 3.

S2, the staff puts the winding roller mechanism 3 in step S1 on the two sets of square frame plates 2, and then applies extrusion force to the anti-slip plate 18 so that the extrusion spring 16 contracts inwardly until the combined thickness of the anti-slip plate 18, the extrusion spring 16 and the insert plate 15 is less than the inner width of the engaging groove 13, and then drives the assembly block 14 to move downward, so that its bottom is in contact with the top of the square frame plate 2, and the bottom of the insert plate 15 extends into the space inside the engaging groove 13;

S3, the staff pulls the front end of the film roll 29, passes it under the guide roller 31 and the lower pressure roller 25, and applies an upward pushing force to the pressing long plate 23, causing the telescopic spring 22 to shrink in length while increasing the distance between the pressing long plate 23 and the conveyor belt 41, and then inserts the front end of the film roll 29 under the pressing long plate 23, and cancels the pushing force on the pressing long plate 23, and the pressing long plate 23 returns to its original state to press the film roll 29 onto the conveyor belt 41, and synchronously starts the drive motor 39 and the multi-section electric extension rod 20, and the drive motor 39 causes the conveyor belt 41 to rotate forward at a rate consistent with the rate at which the multi-section electric extension rod 20 extends forward, so as to drive the front end of the film roll 29 to move forward, until the distance between itself and the distance measuring plate 28 reaches the set value when monitored by the distance sensor 27, and the operation of the multi-section electric extension rod 20 and the drive motor 39 is stopped;

S4, start the hydraulic cylinder 36 to make the bottom end of the cutting knife 37 contact the film roll sheet 29, and then start the servo motor 33 so that the cutting knife 37 can perform cutting operation along the surface of the film roll sheet 29 from one side to the other side.

It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims (3)

1. A cut membrane machine for plastic film coil stock, includes conveying mechanism (1), square frame plate (2) and wind-up roll mechanism (3), its characterized in that: two groups of square frame plates (2) which are arranged side by side are arranged at the top of the conveying mechanism (1), and a winding roller mechanism (3) is arranged at the top of the two groups of square frame plates (2);

The winding roller mechanism (3) is characterized in that the winding roller mechanism is composed of two clamping columns (4), two circular side plates (5), a circular cylinder (6) and an arc-shaped pressing plate (7), the clamping columns (4) and the circular side plates (5) are two groups, the clamping columns (4) are respectively arranged at the top concave parts of the two groups of square frame plates (2), the circular side plates (5) are respectively arranged on the outer walls of one sides of the two groups of opposite clamping columns (4), the top of the circular cylinder (6) is provided with a notch, the circular cylinder (6) and the arc-shaped pressing plate (7) are respectively arranged between the two groups of circular side plates (5), the outer walls of the arc-shaped pressing plate (7) are attached to the inner walls of the notches, two groups of adjusting mechanisms (8) which are arranged side by side are arranged are respectively arranged on the bottom wall of the circular cylinder (6), and the top of the adjusting mechanisms (8) are attached to the bottom of the arc-shaped pressing plate (7);

The outer surface of the wind-up roll mechanism (3) is sleeved with a film coil material sheet (29), the front surfaces of the two groups of square frame plates (2) are provided with joint plates (30), and a guide roll (31) is arranged between the two groups of joint plates (30);

the front and the back of the square frame plate (2) are provided with grooves (12), the top of the square frame plate (2) is provided with two groups of clamping grooves (13) which are arranged front and back, the top of the square frame plate (2) is provided with a combined block (14), the bottom of the combined block (14) is provided with two groups of plugboards (15) which are arranged front and back, and the bottoms of the two groups of plugboards (15) respectively extend into the space inside the two groups of clamping grooves (13);

The outer walls of the two opposite sides of the plugboards (15) are respectively provided with an extrusion spring (16) and a telescopic rod (17), the extrusion springs (16) encircle the outer surfaces of the telescopic rods (17), and one end, far away from the plugboards (15), of each extrusion spring (16) is provided with an anti-falling plate (18);

Square plates (19) are arranged on the front sides of the square frame plates (2), multiple power-saving extension rods (20) are arranged on the front sides of the square plates (19), long plates (21) are arranged on the front sides of the multiple power-saving extension rods (20), multiple groups of telescopic springs (22) which are arranged side by side are arranged at the bottoms of the long plates (21), pressing long plates (23) are arranged at the bottoms of the telescopic springs (22), two groups of fixing plates (24) which are arranged side by side are arranged at the tops of the conveying mechanism (1), the two groups of fixing plates (24) are positioned in front of the square frame plates (2), and lower pressing rollers (25) are arranged on outer walls of one side, opposite to the fixing plates (24);

An inner panel (26) is arranged at the top of one group of the multi-section electric extension rods (20), a distance sensor (27) is embedded in the front surface of the inner panel (26), the distance sensor (27) is electrically connected with the multi-section electric extension rods (20), a distance measuring plate (28) is arranged at the top of the long slat (21), and the distance measuring plate (28) is positioned in front of the distance sensor (27);

Pulling the front end of the film roll sheet (29), passing the film roll sheet under the guide roller (31) and the lower pressing roller (25), applying upward pushing force to the pressing long plate (23), enabling the telescopic spring (22) to shrink in length, increasing the distance between the pressing long plate (23) and the conveyor belt (41), pushing the front end of the film roll sheet (29) under the pressing long plate (23), withdrawing the pushing force to the pressing long plate (23), restoring the pressing long plate (23) to press the film roll sheet (29) on the conveyor belt (41), synchronously starting the driving motor (39) and the multi-section electric extension rod (20), enabling the speed of forward rotation of the conveyor belt (41) to be consistent with the speed of forward extending operation of the multi-section electric extension rod (20), so as to drive the front end of the film roll sheet (29) to move forward until the distance between the film roll sheet (29) reaches a set value through the distance sensor (27) and the driving motor (39) is stopped; starting a hydraulic cylinder (36) to enable the bottom end of a cutting knife (37) to be in contact with the film roll material sheet (29), and then starting a servo motor (33) so that the cutting knife (37) performs cutting operation from side to side along the surface of the film roll material sheet (29);

the structure of adjustment mechanism (8) is miniature electricity push rod (9), screw thread dish (10) and links up lantern ring (11), the quantity of screw thread dish (10) and linking lantern ring (11) is two sets ofly, two sets of screw thread dish (10) are installed respectively at the top and the bottom of miniature electricity push rod (9), two sets of link up lantern ring (11) cup joint respectively at the surface of two sets of screw thread dish (10), and the bottom of one set of linking lantern ring (11) is laminated with the diapire of circular cylinder (6), and the top of another set of linking lantern ring (11) is laminated with the bottom of arc clamp plate (7).

2. A film cutter for rolls of plastic film as set forth in claim 1, wherein: l type folded plate (32) are all installed to the both sides outer wall of conveying mechanism (1), and wherein a set of servo motor (33) are installed to one side outer wall of L type folded plate (32), lead screw (34) are installed through the axle to the output of servo motor (33), and the inside of another group L type folded plate (32) is run through to the one end of lead screw (34), slide (35) are installed through the screw thread gomphosis to the surface of lead screw (34), pneumatic cylinder (36) are installed to the bottom of slide (35), cutting knife (37) are installed to the bottom of pneumatic cylinder (36).

3. A film cutter for rolls of plastic film as set forth in claim 2, wherein: the conveying mechanism (1) is characterized in that the conveying mechanism is composed of a frame plate (38), a driving motor (39), rotating rollers (40) and a conveyor belt (41), the rotating rollers (40) are multiple groups, the rotating rollers (40) are arranged on the frame plate (38), the driving motor (39) is arranged on the outer wall of one side of the frame plate (38), the output end of the driving motor (39) is connected with one end of one group of rotating rollers (40), and the conveyor belt (41) is arranged on the outer surface of the rotating rollers (40).