CN118107018B - Polymer plastic film perforating equipment - Google Patents

Abstract

The invention relates to the technical field of film perforation, in particular to macromolecule plastic film perforation equipment; comprises a base; two support plates are symmetrically arranged at the front and back of the upper end surface of the base, a flat pressing mechanism is arranged between the two support plates, and a punching mechanism for punching and separating residual materials is also arranged between the two support plates; according to the flat pressing mechanism, the punched film part is conveyed to the winding mechanism through synchronous rotation of the first conveying belt and the second conveying belt, the winding mechanism synchronously winds the film, so that the pulling force of the punched film part is reduced, the film is prevented from being damaged, the material removing part of the punching mechanism is used for resisting and twisting the residual material of the film, the separation of the residual material of the film and the hole of the film is ensured, and the phenomenon that the residual material is still attached to the edge of the hole and influences the punching quality due to rebound or stretching of the film material property during punching is avoided.

Description

Polymer plastic film perforating equipment

Technical Field

The invention relates to the technical field of film perforation, in particular to macromolecule plastic film perforation equipment.

Background

The high molecular plastic film is a film material made of organic high molecular polymer, and in agriculture, the perforated plastic film can be applied to farmland covering, greenhouse covering and vegetable bags, is beneficial to improving the yield and quality of crops, improving the environmental condition, saving water resources and reducing the use of chemical pesticides, and has good influence on agricultural production and environmental protection.

At present, a mechanical punching mode is generally adopted for punching the film, namely punching is carried out through a cutter or a punch, and then the punched film part is directly rolled; however, because the punching process can generate certain stress and deformation on the film, especially on the edge area of the hole, the stress concentration of the film at the hole position can be increased by direct rolling, and in the rolling process, the stress can be further amplified due to the bending and stretching of the film, so that the possibility of breakage of the film at the hole position is increased; secondly, the high polymer plastic film generally has higher elasticity and toughness, so that when a punch or a cutter penetrates through the film, the material rebounds or stretches, and the residual materials are still attached to the edge of the hole, thereby influencing the punching quality of the film.

Disclosure of Invention

In view of the above, embodiments of the present application provide a punching apparatus for a polymer plastic film, so as to solve the above-mentioned technical problems.

In order to achieve the above object, the embodiment of the present application provides the following technical solutions: the embodiment of the application provides high polymer plastic film punching equipment, which comprises a base; two backup pads are installed to the upper end front and back symmetry of base, are provided with flat pressing mechanism between two backup pads, still are provided with the mechanism of punching that is used for punching and separates the incomplete material between two backup pads, and the mechanism of punching includes cuts the pipe and removes the material portion.

The right side between two backup pads is provided with winding mechanism, and winding mechanism and flat pressing mechanism synchronous operation are used for reducing the pulling force that the film was rolled, and the tensioning roller is installed in the left side bilateral symmetry rotation between two backup pads.

The flat press mechanism comprises a first roller shaft, four first roller shafts are rotatably arranged between two support plates, the four first roller shafts are distributed in an isosceles trapezoid structure with the upper part being big and the lower part being small, two front and rear symmetrical first conveyor belts are wound on the four first roller shafts together, a second conveyor belt positioned below the first conveyor belt is rotatably arranged between the two support plates through the two second roller shafts together, a bottom plate is arranged between the two support plates, and the upper end face of the bottom plate is in contact with the lower end face of the upper horizontal section of the second conveyor belt.

The support plate is provided with a driving part for alternately driving the flat pressing mechanism and the punching mechanism.

As the preferred scheme, drive portion include driven gear, driven gear is all installed at the both ends of one of them roller, is provided with the pivot between two backup pads, all install behind the rotation of both ends of pivot run through the backup pad that corresponds with corresponding driven gear complex driving gear, the axostylus axostyle is all installed in the rotation of the opposite side of two backup pads, also installs a driven gear on the axostylus axostyle, driven gear and driving gear are incomplete gear, and be provided with on the driven gear with the toothless section complex locking arc of driving gear, be provided with the linkage portion between punching mechanism and the axostylus axostyle.

As the preferred scheme, winding mechanism include the spliced pole, rotate in the backup pad that is located the rear side and install the spliced pole, the front end of spliced pole rotates and runs through behind the backup pad that corresponds and articulates there is the wind-up roll, has seted up U type groove with the wind-up roll position that corresponds in the backup pad that is located the front side, the anterior segment and the U type groove sliding fit of wind-up roll, and the wind-up roll still with U type groove running fit, the backup pad that is located the front side corresponds U type groove position and is provided with the locating part.

As the preferred scheme, punching mechanism include the extension board, equal slidable mounting has the extension board from top to bottom in the opposite face of two backup pads, the roof is installed jointly to the up end of extension board, the lower terminal surface of roof is installed through a plurality of pressure springs and is accepted the board, accept the board up end and install the guide bar with the position of pressure spring one-to-one, and the guide bar slides and run through the roof, accepts and evenly installs the cutting pipe from front to back on the board, is provided with the removal portion on the board.

As the preferred scheme, remove material portion include the through-hole, the through-hole has been seted up with the position of cutting pipe one-to-one on the board of accepting, install the casing on the board of accepting, the left end face intercommunication of casing has the pipeline, the position with cutting pipe one-to-one is provided with the depression bar in the casing, and the depression bar is the type structure of falling T, the vertical section slip of depression bar runs through the casing, and the vertical section of depression bar still with casing normal running fit, be provided with the pivoted torsion member of drive depression bar on the board of accepting.

As the preferred scheme, the locating part include the limiting plate, be located the front side be provided with the limiting plate in the backup pad, and the limiting plate is L type structure, the break point department of limiting plate rotates through spacing post and the backup pad that corresponds to be connected, slidable mounting has T type pole on the vertical section of limiting plate, installs the extension spring between the horizontal segment of T type pole and the limiting plate, the terminal surface bilateral symmetry has been seted up spacing hole before the backup pad that is located the front side, and the horizontal segment slip of T type pole runs through behind the limiting plate with the spacing hole cooperation that corresponds.

As the preferred scheme, torsion member include the fixed plate, the fixed plate is installed to the lower terminal surface of roof, and the drum is installed with the position of depression bar one-to-one to the lower terminal surface of fixed plate, and in the depression bar upper end extended to the drum that corresponds, and depression bar and drum sliding fit install compression spring between the inner wall of the vertical section up end of depression bar and drum, the guide way has been seted up along its circumference to the circumference outer wall of drum, the roller bearing is installed to the depression bar outer wall, and the roller bearing slides and runs through the guide way that corresponds.

As a preferred scheme, the four first roll shafts are in transmission connection through a first belt pulley mechanism, the two second roll shafts are in transmission connection through a second belt pulley mechanism, one of the first roll shafts is in transmission connection with the other of the second roll shafts through a first gear set, and the rear end of the shaft column is in transmission connection with the other of the first roll shafts through a second gear set after penetrating through the corresponding support plate.

As the preferable scheme, the linkage part comprises a cam, the cam is arranged on the shaft rod, round rods are arranged on the front end surface and the rear end surface of the top plate, and a connecting rod is hinged between the round rods and the cam.

As a preferable scheme, the lower end face of the pressure lever is uniformly provided with convex points, and a sealing ring is arranged at the joint of the pressure lever and the shell.

The above technical solutions in the embodiments of the present invention have at least one of the following technical effects: 1. the leveling mechanism provided by the invention conveys the punched film part to the winding mechanism through the synchronous rotation of the first conveying belt and the second conveying belt, and the winding mechanism synchronously winds the film, so that the traction force of the punched film part is reduced, the quality of film winding after punching is ensured, the film damage caused by stress concentration due to overlarge traction force in the edge area of the hole is avoided, and in addition, the first conveying belt and the second conveying belt also play roles of leveling and fixing the film, so that the film punching quality and stability are ensured.

2. According to the punching mechanism, the film is punched through the cutting pipe, and the residual material of the film is pressed and twisted through the material removing part, so that the separation of the residual material of the film and the hole of the film is ensured, and the phenomenon that the residual material is still attached to the edge of the hole and the punching quality is influenced due to rebound or stretching of the film material during punching is avoided.

3. According to the invention, the flat pressing mechanism and the punching mechanism are alternately operated through the driving part, so that the two actions of flat pressing feeding and punching can be connected in a seamless manner, the waiting time and the switching time are reduced, and the continuous operation mode not only improves the production efficiency, but also is beneficial to keeping the stability of the product quality.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of the structure of the present application when a film is processed.

Fig. 2 is an enlarged view of the structure at a in fig. 1.

Fig. 3 is a schematic view of a material removing part structure of the present application.

Fig. 4 is a transverse cross-sectional view of fig. 1 from back to front.

Fig. 5 is an enlarged view of the structure at B in fig. 4.

Fig. 6 is a schematic view of the second view structure of fig. 1.

Fig. 7 is an enlarged view of the structure at C in fig. 6.

Fig. 8 is a schematic view of a driving part of the present application.

Fig. 9 is a schematic view of a part of the punching mechanism of the present application.

Reference numerals: 10. a base; 11. a support plate; 12. a tension roller; 2. a flat pressing mechanism; 20. a first roll shaft; 21. a first conveyor belt; 22. a second roll shaft; 23. a second conveyer belt; 24. a bottom plate; 25. a driving section; 250. a driven gear; 251. a rotating shaft; 252. a drive gear; 253. a shaft lever; 254. a cam; 255. a round bar; 256. a connecting rod; 3. a winding mechanism; 30. a shaft post; 31. a wind-up roll; 32. a U-shaped groove; 33. a limiting piece; 330. a limiting plate; 331. a T-shaped rod; 332. a limiting hole; 4. a punching mechanism; 40. a support plate; 41. a top plate; 42. a pressure spring; 43. a receiving plate; 44. a guide rod; 45. cutting the tube; 46. a material removing part; 460. a housing; 461. a pipe; 462. a compression bar; 463. a torsion member; 4630. a fixing plate; 4631. a cylinder; 4632. a compression spring; 4633. a guide groove; 4634. a roller; 5. a first pulley mechanism; 6. and a second belt pulley mechanism.

Detailed Description

In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.

As shown in fig. 1, a high polymer plastic film perforating apparatus includes a base 10; two support plates 11 are symmetrically installed around the upper end face of the base 10, a flat pressing mechanism 2 is arranged between the two support plates 11, and a punching mechanism 4 for punching and separating residual materials is also arranged between the two support plates 11.

As shown in fig. 1, a winding mechanism 3 is disposed on the right side between the two support plates 11, the winding mechanism 3 and the flattening mechanism 2 operate synchronously to reduce the pulling force of the film being wound, and tensioning rollers 12 are symmetrically installed on the left side between the two support plates 11 in a vertically symmetrical rotation mode.

As shown in fig. 1, 2 and 3, the winding mechanism 3 includes a shaft post 30, a support plate 11 at the rear side is rotatably provided with the shaft post 30, a winding roller 31 is hinged at the front end of the shaft post 30 after penetrating through the corresponding support plate 11, a U-shaped groove 32 is provided at a position corresponding to the winding roller 31 on the support plate 11 at the front side, the front section of the winding roller 31 is slidably matched with the U-shaped groove 32, the winding roller 31 is rotatably matched with the U-shaped groove 32, and a limiting member 33 is provided at a position corresponding to the U-shaped groove 32 on the support plate 11 at the front side.

As shown in fig. 1 and 2, the limiting member 33 includes a limiting plate 330, a limiting plate 330 is disposed on the supporting plate 11 and located at the front side, the limiting plate 330 is in an L-shaped structure, a folding point of the limiting plate 330 is rotationally connected with the corresponding supporting plate 11 through a limiting column, a T-shaped rod 331 is slidably mounted on a vertical section of the limiting plate 330, a tension spring is mounted between a horizontal section of the T-shaped rod 331 and the limiting plate 330, limiting holes 332 are symmetrically formed in the front end face of the supporting plate 11 and located at the front side, and the horizontal section of the T-shaped rod 331 is matched with the corresponding limiting holes 332 after slidably penetrating through the limiting plate 330.

Specifically during operation, the T-shaped rod 331 is pulled forward manually, the T-shaped rod 331 is separated from the current limiting hole 332, then the limiting plate 330 is rotated to be far away from the wind-up roller 31, the T-shaped rod 331 is opposite to the limiting hole 332 located below, then the T-shaped rod 331 is loosened, the T-shaped rod 331 is moved and inserted into the limiting hole 332 located below under the action of the tension spring, the limiting plate 330 is kept to release the limiting state of the wind-up roller 31, the shaft post 30 is connected with the wind-up roller 31 in a hinged mode, the wind-up roller 31 can be rotated manually upwards to be separated from the U-shaped groove 32, the outer paper tube is sleeved on the wind-up roller 31, then the front end of the wind-up roller 31 is replaced into the U-shaped groove 32, the T-shaped rod 331 is pulled again to be separated from the current limiting hole 332, the limiting plate 330 is rotated to be attached to the wind-up roller 31, then the T-shaped rod 331 is loosened, the T-shaped rod 331 is inserted into the limiting hole 332 located above under the action of the tension spring, the limiting plate 330 is kept to keep the limiting state of the wind-up roller 31, and stability of the wind-up roller 31 is guaranteed.

As shown in fig. 1, 3, 4 and 6, the platen press mechanism 2 includes a roller 20, four rollers 20 are rotatably mounted between two support plates 11, the four rollers 20 are distributed in an isosceles trapezoid structure with large upper portions and small lower portions, two front and rear symmetrical first conveying belts 21 are jointly wound on the four rollers 20, a second conveying belt 23 located below the first conveying belt 21 is rotatably mounted between the two support plates 11 through two second rollers 22, a bottom plate 24 is mounted between the two support plates 11, the upper end face of the bottom plate 24 is abutted against the lower end face of the upper horizontal section of the second conveying belt 23, and a driving portion 25 for alternately driving the platen press mechanism 2 and the punching mechanism 4 is arranged on the support plates 11.

As shown in fig. 6, 7 and 8, the driving part 25 includes driven gears 250, driven gears 250 are mounted at two ends of one of the first roller shafts 20, a rotating shaft 251 is disposed between the two support plates 11, driving gears 252 matched with the corresponding driven gears 250 are mounted at two ends of the rotating shaft 251 after the two ends of the rotating shaft 251 rotate and penetrate through the corresponding support plates 11, shaft rods 253 are mounted at opposite sides of the two support plates 11 in a rotating manner, a driven gear 250 is mounted on the shaft rods 253, the driven gear 250 and the driving gears 252 are incomplete gears, locking arcs matched with toothless sections of the driving gears 252 are disposed on the driven gears 250, and a linkage part is disposed between the punching mechanism 4 and the shaft rods 253.

As shown in fig. 1, 3 and 8, the four first roll shafts 20 are in transmission connection through a first belt pulley mechanism 5, the two second roll shafts 22 are in transmission connection through a second belt pulley mechanism 6, one of the first roll shafts 20 and one of the second roll shafts 22 are in transmission connection through a first gear set (not shown in the figure), and the rear ends of the shaft posts 30 rotate to penetrate through corresponding support plates 11 and then are in transmission connection with one of the first roll shafts 20 through a second gear set (not shown in the figure).

As shown in fig. 1,3, 4, 5 and 9, the punching mechanism 4 includes a support plate 40, the opposite surfaces of two support plates 11 are both provided with the support plate 40 in a vertically sliding manner, the upper end surfaces of the support plates 40 are jointly provided with a top plate 41, the lower end surfaces of the top plate 41 are provided with a receiving plate 43 through a plurality of compression springs 42, the upper end surfaces of the receiving plate 43 are provided with guide rods 44 at positions corresponding to the compression springs 42 one by one, the guide rods 44 slidably penetrate the top plate 41, the receiving plate 43 is provided with cutting pipes 45 uniformly from front to back, and the receiving plate 43 is provided with a material removing part 46.

As shown in fig. 7, the linkage part includes a cam 254, the cam 254 is mounted on the shaft 253, the round rod 255 is mounted on both front and rear end surfaces of the top plate 41, and a connecting rod 256 is hinged between the round rod 255 and the cam 254.

As shown in fig. 3, fig. 4, fig. 5 and fig. 9, the material removing portion 46 includes a through hole, the position corresponding to the cutting pipe 45 one by one on the receiving plate 43 is provided with a through hole, the receiving plate 43 is provided with a housing 460, the left end face of the housing 460 is communicated with a pipeline 461, the position corresponding to the cutting pipe 45 one by one in the housing 460 is provided with a compression bar 462, the compression bar 462 is in an inverted T-shaped structure, the vertical section of the compression bar 462 slides through the housing 460, the vertical section of the compression bar 462 is also in rotary fit with the housing 460, and the receiving plate 43 is provided with a torsion member 463 for driving the compression bar 462 to rotate.

As shown in fig. 4, 5 and 9, the torsion member 463 includes a fixing plate 4630, the lower end surface of the top plate 41 is provided with the fixing plate 4630, the lower end surface of the fixing plate 4630 and the compression bar 462 are provided with cylinders 4631 at positions corresponding to each other, the upper ends of the compression bars 462 extend into the corresponding cylinders 4631, the compression bar 462 is in sliding fit with the cylinders 4631, a compression spring 4632 is provided between the upper end surface of the vertical section of the compression bar 462 and the inner wall of the cylinders 4631, the circumferential outer wall of the cylinders 4631 is provided with guide grooves 4633 along the circumferential direction thereof, the outer wall of the compression bar 462 is provided with rollers 4634, and the rollers 4634 slide through the corresponding guide grooves 4633.

As shown in fig. 5, the lower end surface of the pressing rod 462 is uniformly provided with bumps, and a sealing ring (not shown in the figure) is arranged at the connection part of the pressing rod 462 and the housing 460; the convex points can increase the friction force between the pressing rod 462 and the film residual material, so that the film residual material can be driven to twist when the pressing rod 462 rotates to separate the film residual material from the hole of the film, and the sealing ring can improve the tightness of the joint of the pressing rod 462 and the shell 460, so that the residual material is adsorbed later, and the residual material can be sucked out of the shell 460.

In specific work, a film roll to be perforated is placed on an external support, then the film passes through between two tensioning rollers 12, passes through between a first conveying belt 21 and a second conveying belt 23 and is fixedly connected with an external paper tube on a winding roller 31; then, an external motor installed on the supporting plate 11 is operated to drive the rotating shaft 251 to rotate, the rotating shaft 251 drives the driving gear 252 to rotate, the driving gear 252 alternately drives the two driven gears 250, when the driving gear 252 is meshed with the driven gears 250 on the shaft rod 253, the toothless section of the driving gear 252 is matched with the locking arc of the driven gears 250 on the first roller shaft 20 to limit the rotation of the driven gears 250 on the first roller shaft 20 so as to limit the movement of the film, then the shaft rod 253 and the corresponding driven gears 250 are driven to rotate along with the rotation of the driving gear 252, the shaft rod 253 drives the cam 254 to rotate, the cam 254 drives the top plate 41 to move downwards through the connecting rod 256, the top plate 41 pushes the bearing plate 43 to move towards the film through the pressure spring 42, the bearing plate 43 punches the film through the cutting tube 45, and the degree of downward stretching deformation of the film during punching is reduced through the support of the second conveying belt 23 and the bottom plate 24 below the film.

Then, as the top plate 41 continues to move downwards, the cutting pipe 45 is blocked by the second conveyor belt 23 and the bottom plate 24, at this time, the top plate 41 compresses the pressure spring 42 and moves downwards, the top plate 41 drives the cylinder 4631 to move downwards through the fixing plate 4630, the cylinder 4631 pushes the lower end surface of the pressing rod 462 to be pressed against the film residue at the punching position through the compression spring 4632, then as the cylinder 4631 continues to move downwards, the pressing rod 462 stops moving downwards due to the blocking of the second conveyor belt 23 and the bottom plate 24, at this time, the pressing rod 462 keeps pressing against the film residue, the cylinder 4631 compresses and moves downwards the compression spring 4633 and drives the pressing rod 462 to rotate through the cooperation of the guide groove 4633 and the rolling shaft 4634, and the rotation of the pressing rod 462 also twists the compression spring 4632; the pressing rod rotates 462 to drive the corresponding film residue to twist so as to ensure complete separation of the film residue and the film hole, avoid that the film material is rebounded or stretched when punching, and cause that the residue is still attached to the edge of the hole, so as to affect the punching quality, then the top plate 41 is driven to move upwards along with the rotation of the cam 254, the top plate 41 firstly drives the pressing rod 462 to rotate and reset through the cylinder 4631 and the compression spring 4632 to reset, then drives the pressing rod 462 to move upwards to be separated from the cutting tube 45 and move to the upper side of the receiving plate 43, at this time, the external air tube is communicated with the pipeline 461, and the external air tube sucks air to suck the residue to collect the residue, so that the separation of the residue is ensured, and the cleanliness in the processing process is improved, and then the receiving plate 43 and the cutting tube 45 are driven to move upwards through the compression spring 42 along with the upward movement of the top plate 41, so that the cutting tube 45 is far away from the film.

Then, the driving gear 252 is meshed with the driven gear 250 on the first roller 20, so that the first roller 20 and the corresponding driven gear 250 rotate, the driving gear 252 is matched with a locking arc of the driven gear 250 on the shaft 253 to limit the rotation of the shaft 253 and the corresponding driven gear 250, the cutting tube 45 keeps away from the film, the first roller 20 is in transmission connection with the second roller 22 through the first belt pulley mechanism 5, the first roller 20 is in transmission connection with the second roller 22 through a first gear set (not shown in the figure), the lower part of the first conveyor belt 21 and the upper part of the second conveyor belt 23 synchronously drive the film to move to the right side, the shaft post 30 is in transmission connection with one of the first roller 20, so that the first conveyor belt 21 and the second conveyor belt 23 simultaneously drive the winding roller 31 to synchronously wind the film after punching, the synchronous pressing conveying of the first conveyor belt 21 and the second conveyor belt 23 and the synchronous rotation of the winding roller 31, the force of the film punching part is reduced, and the film is prevented from being damaged due to the concentrated stress of the film after punching, and the film is prevented from being damaged due to the concentrated stress area after punching.

When the driving gear 252 is meshed with the driven gear 250 on the shaft 253 again, the punching mechanism 4 is driven to punch the film again, and the first conveying belt 21 and the second conveying belt 23 are used for pressing the film so as to smooth and fix the film, so that the quality and stability of punching the film by the cutting tube 45 are ensured.

In the description of the present invention, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present invention; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Furthermore, the terms "first," "second," "first," and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "first", "second", "first", "second" may include at least one such feature, either explicitly or implicitly. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," "mounted," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

The embodiments of the present invention are all preferred embodiments of the present invention, and are not intended to limit the scope of the present invention; all equivalent changes in structure, shape and principle of the invention should be covered in the scope of protection of the invention.

Claims (6)

1. A macromolecule plastic film perforating device comprises a base (10); the method is characterized in that: two support plates (11) are symmetrically arranged in front of and behind the upper end surface of the base (10), a leveling mechanism (2) is arranged between the two support plates (11), a punching mechanism (4) for punching and separating residual materials is also arranged between the two support plates (11), and the punching mechanism (4) comprises a cutting pipe (45) and a material removing part (46); wherein:

A rolling mechanism (3) is arranged on the right side between the two support plates (11), the rolling mechanism (3) and the flat pressing mechanism (2) synchronously operate to reduce the rolling tension of the film, and tensioning rollers (12) are symmetrically arranged on the left side between the two support plates (11) in a vertically rotating mode;

the flat pressing mechanism (2) comprises a first roller shaft (20), four first roller shafts (20) are rotatably arranged between two supporting plates (11), the four first roller shafts (20) are distributed in an isosceles trapezoid structure with the upper part being big and the lower part being small, two front and rear symmetrical first conveying belts (21) are jointly wound on the four first roller shafts (20), a second conveying belt (23) positioned below the first conveying belt (21) is rotatably arranged between the two supporting plates (11) through two second roller shafts (22), a bottom plate (24) is arranged between the two supporting plates (11), and the upper end face of the bottom plate (24) is in conflict with the lower end face of the upper horizontal section of the second conveying belt (23); a driving part (25) for alternately driving the flat pressing mechanism (2) and the punching mechanism (4) is arranged on the supporting plate (11);

The driving part (25) comprises driven gears (250), wherein the driven gears (250) are respectively arranged at two ends of one first roller shaft (20), a rotating shaft (251) is arranged between two supporting plates (11), driving gears (252) matched with the corresponding driven gears (250) are respectively arranged at two ends of the rotating shaft (251) after the two ends of the rotating shaft (251) penetrate through the corresponding supporting plates (11) in a rotating mode, shaft rods (253) are respectively arranged at opposite sides of the two supporting plates (11) in a rotating mode, one driven gear (250) is also arranged on each shaft rod (253), the driven gears (250) and the driving gears (252) are incomplete gears, locking arcs matched with toothless sections of the driving gears (252) are arranged on the driven gears (250), and a linkage part is arranged between each punching mechanism (4) and each shaft rod (253);

The winding mechanism (3) comprises a shaft post (30), the shaft post (30) is rotatably arranged on a supporting plate (11) positioned at the rear side, a winding roller (31) is hinged behind the supporting plate (11) which corresponds to the shaft post (30) in a rotating and penetrating mode, a U-shaped groove (32) is formed in the position, corresponding to the winding roller (31), of the supporting plate (11) positioned at the front side, the front section of the winding roller (31) is in sliding fit with the U-shaped groove (32), the winding roller (31) is also in rotating fit with the U-shaped groove (32), and a limiting piece (33) is arranged at the position, corresponding to the U-shaped groove (32), of the supporting plate (11) positioned at the front side;

The punching mechanism (4) further comprises support plates (40), the support plates (40) are vertically and slidably installed on opposite surfaces of the two support plates (11), top plates (41) are jointly installed on the upper end faces of the support plates (40), bearing plates (43) are installed on the lower end faces of the top plates (41) through a plurality of pressure springs (42), guide rods (44) are installed at positions, corresponding to the pressure springs (42), of the upper end faces of the bearing plates (43), the guide rods (44) penetrate through the top plates (41) in a sliding mode, cutting pipes (45) are uniformly installed on the bearing plates (43) from front to back, and material removing portions (46) are arranged on the bearing plates (43);

The material removing part (46) comprises a through hole, the through hole is formed in the position, corresponding to the cutting pipe (45), of the receiving plate (43), the shell (460) is installed on the receiving plate (43), the left end face of the shell (460) is communicated with a pipeline (461), a compression rod (462) is arranged in the shell (460) and corresponds to the cutting pipe (45) one by one, the compression rod (462) is of an inverted T-shaped structure, the vertical section of the compression rod (462) penetrates through the shell (460) in a sliding mode, the vertical section of the compression rod (462) is in running fit with the shell (460), and a torsion piece (463) for driving the compression rod (462) to rotate is arranged on the receiving plate (43).

2. The polymeric plastic film perforation device of claim 1, wherein: the limiting piece (33) comprises a limiting plate (330), the limiting plate (330) is arranged on the supporting plate (11) and located on the front side, the limiting plate (330) is of an L-shaped structure, the folding point of the limiting plate (330) is rotationally connected with the corresponding supporting plate (11) through a limiting column, a T-shaped rod (331) is slidably mounted on the vertical section of the limiting plate (330), a tension spring is mounted between the horizontal section of the T-shaped rod (331) and the limiting plate (330), limiting holes (332) are formed in the upper end face and the lower end face of the supporting plate (11) located on the front side in a symmetrical mode, and the horizontal section of the T-shaped rod (331) is matched with the corresponding limiting holes (332) after penetrating through the limiting plate (330) in a sliding mode.

3. The polymeric plastic film perforation device of claim 1, wherein: the torsion piece (463) include fixed plate (4630), fixed plate (4630) is installed to the lower terminal surface of roof (41), drum (4631) is installed with the position of depression bar (462) one-to-one to the lower terminal surface of fixed plate (4630), in depression bar (462) upper end extends to corresponding drum (4631), and depression bar (462) and drum (4631) sliding fit, install compression spring (4632) between the inner wall of the vertical section up end of depression bar (462) and drum (4631), guide slot (4633) have been seted up along its circumference to the circumference outer wall of drum (4631), roller (4634) are installed to depression bar (462) outer wall, and roller (4634) slip runs through corresponding guide slot (4633).

4. The polymeric plastic film perforation device of claim 1, wherein: the four first roll shafts (20) are in transmission connection through a first belt pulley mechanism (5), the two second roll shafts (22) are in transmission connection through a second belt pulley mechanism (6), one of the first roll shafts (20) and one of the second roll shafts (22) are in transmission connection through a first gear set, and the rear end of the shaft column (30) rotates to penetrate through a corresponding supporting plate (11) and then is in transmission connection with one of the first roll shafts (20) through a second gear set.

5. The polymeric plastic film perforation device of claim 1, wherein: the linkage part comprises a cam (254), the cam (254) is arranged on the shaft rod (253), round rods (255) are arranged on the front end surface and the rear end surface of the top plate (41), and connecting rods (256) are hinged between the round rods (255) and the cam (254).

6. The polymeric plastic film perforation device of claim 1, wherein: the lower end face of the pressure rod (462) is uniformly provided with convex points, and a sealing ring is arranged at the joint of the pressure rod (462) and the shell (460).