A production equipment and process capable of producing both cast film and PP film

Abstract

The invention relates to a production device capable of producing both cast film and PP film and a production process of producing cast film or PP film by using the device. The device comprises an extrusion component, a vacuum component, a flattening component, a corona component, a traction component and a winding component. The extrusion component comprises an extruder, a first roller body and a second roller body, the first roller body and the second roller body are arranged at intervals from left to right, the second roller body can be far away from or close to the first roller body, the vacuum component is located on the left side of the output end of the extruder and above the first roller body, the vacuum component can be far away from or close to the output end of the extruder, the flattening component comprises a blowing body, the blowing body can be covered on the upper end of the second roller body, the blowing body is used to flatten a film on the first roller body, a first conduction roller is formed below the corona component, the extrusion component, the corona traction component, the traction component and the winding component are arranged at intervals from right to left in sequence, the device and the process can produce both PP film and cast film, one machine has multiple uses, and switching is simple.

Description

Technical Field

[0001] The invention belongs to the technical field of film production lines, and in particular relates to production equipment and a process thereof that can produce both cast film and PP film. Background Art

[0002] At present, in the field of packaging films, cast film and PP film are the most widely used and have the best consumer market. The existing production lines for cast film and PP film have different properties of the two films (cast film is formed by rolling, PP film is formed by flat blowing and cannot be formed by rolling, and some cast films do not require corona treatment). Therefore, there is no equipment on the market that can be used to produce the two films. In view of this, this solution was created. Summary of the invention

[0003] In view of the deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a production equipment and process that can produce both cast film and PP film. The equipment can produce both PP film and cast film, has multiple uses, and is easy to switch.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a production equipment capable of producing both cast film and PP film, comprising an extrusion assembly, a vacuum assembly, a flattening assembly, a corona assembly, a traction assembly and a winding assembly, wherein the extrusion assembly comprises an extruder, a first roller body and a second roller body, wherein the first roller body and the second roller body are arranged at intervals on the left and right, and the second roller body can be away from or close to the first roller body,

[0005] The vacuuming component is located on the left side of the output end of the extruder and above the first roller body. The vacuuming component can be far away from or close to the output end of the extruder. The flattening component includes a blowing body, which can be covered on the upper end of the second roller body. The blowing body is used to flatten the film on the first roller body.

[0006] A first conductive roller is formed below the corona assembly, and the extrusion assembly, the corona traction assembly, the traction assembly and the winding assembly are sequentially arranged at intervals from right to left.

[0007] The extrusion assembly further comprises a first fixed seat and a first movable seat, the first roller body is rotatably connected to the first fixed seat, the second roller body is rotatably connected to the first movable seat, and the first movable seat can be away from or close to the first fixed seat.

[0008] A guide rail groove is formed on the lower surface of the first movable seat, and the extrusion assembly also includes a first guide rail, which is adapted to the first track groove. A moving wheel is formed in the track groove of the first movable seat, and the circumference of the moving wheel is in contact with the surface of the first guide rail.

[0009] The length of the first roller body and the second roller body is greater than the length of the output end of the extruder, and a first air outlet and a first air inlet are formed on both sides of the circumference of the second roller body, and the first air outlet and the first air inlet are spaced clockwise along the axis of the second roller body. The first air outlet and the first air inlet are arranged in a clockwise direction, and the blowing body includes a mounting body and an air outlet, and the lower surface of the mounting body is in contact with the circumference of the second roller body, and an air cavity is formed on the mounting body, and air inlet bosses are formed on both sides of the lower surface of the mounting body, and the air inlet bosses are matched with the first air outlet, and the air outlet is located at the lower end of a side of the mounting body facing the first roller body, and the air inlet bosses, the air cavity and the output end of the air outlet are connected.

[0010] The apex of the second roller body is higher than the height of the first movable seat, the length of the mounting body is equal to the length of the first movable seat, the lower surface of the mounting body includes an arc portion and straight surface portions on both sides of the arc portion, the arc portion is in contact with the upper end of the second roller body, and both sides of the straight surface portions are in contact with the upper surface of the first movable seat.

[0011] The flattening assembly also includes an air pump, and the output end of the air pump is directly connected to the first air inlet hole through a connecting pipe.

[0012] The cast film production equipment also includes a vacuum driving component, which includes a first vacuum group and a second vacuum group. The first vacuum group and the second vacuum group are arranged with a left and right interval, and the suction ends of the first vacuum group and the second vacuum group are downward. The vacuum driving component drives the vacuum mechanism away from or close to the output end of the extruder.

[0013] The vacuum pumping assembly includes a supporting frame, the supporting frame is formed with a accommodating groove with an opening facing downward, the inner side of the accommodating groove away from the extrusion mechanism is an inclined surface, the first vacuum pumping group is connected to the inclined surface, the second vacuum pumping group is connected to the bottom of the accommodating groove, the first vacuum pumping group includes a plurality of first vacuum pumping heads, and the second vacuum pumping group includes a plurality of second vacuum pumping heads.

[0014] The vacuum driving assembly includes two groups of driving bodies, which are respectively connected to the two sides of the extruder and the carrier frame, and the driving body includes a driving cylinder and a connecting rod, one end of the connecting rod is fixedly connected to the side wall of the carrier frame, and the other end of the connecting rod is rotatably connected to the side wall of the extrusion mechanism, and a rotating shaft is formed on the outward side of the connecting rod, and the output end of the driving cylinder is rotatably connected to the rotating shaft, and the driving cylinder is tilted;

[0015] The connecting rod includes an inclined section and a vertical section, the rotating shaft is formed on the surface of the inclined section, one end of the inclined section is rotatably connected to the side wall of the extrusion mechanism, the other end of the inclined section is fixedly connected to the vertical section, and the vertical section is fixedly connected to the side wall of the supporting frame.

[0016] A production process for producing a production equipment capable of producing both cast film and PP film, comprising the following steps:

[0017] (S1) To produce cast film, the vacuum driving component drives the bearing frame close to the output end of the extruder, the first vacuum combination and the second vacuum combination start to vacuumize, the first movable seat moves toward the first fixed seat, the distance between the first roller body and the second roller body is equal to the set thickness of the cast film, and the extruder starts to extrude the cast film between the first roller body and the second roller body in the hopper, and the first roller body and the second roller body are rolled against each other; / To produce PP film, the vacuum driving component drives the bearing frame away from the output end of the extruder, the first movable seat moves away from the first fixed seat, the arc-shaped portion of the mounting body is fitted with the upper end of the second roller body and the air inlet convex column on the arc-shaped portion is inserted into the first air outlet hole of the second roller body, the output end of the air pump is connected to the first air inlet on the second roller body, the outlet gas is blown toward the circumference of the first roller body, and the extruder starts to discharge material;

[0018] (S2) the cast film after being rolled by the first roller and the second roller is pulled onto the first conductive roller below the corona assembly; / the PP film flattened by blowing gas is pulled from the first roller into the corona assembly for corona treatment;

[0019] (S3) the cast film is pulled from the first conductive roller to the pulling assembly; / the PP film is pulled from the corona assembly to the pulling assembly;

[0020] (S4) The parts are pulled from the pulling assembly to the winding assembly for winding.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The present invention designs a production equipment that can produce both cast film and PP film. When producing cast film, the vacuuming component is close to the output end of the extruder, the flattening body is away from the second roller body, the vacuuming component vacuums the first roller body and between the first roller body and the second roller body to form a left and right air pressure difference (to prevent bubbles from being generated in the cast film during rolling), the extruder extrude the cast film material onto the first roller body, the first roller body and the second roller body are rolled together to form, and then pulled to the first conductive roller, the pulling component and the winding component in sequence;

[0023] When making PP film, the vacuum assembly is away from the extrusion output end, the second roller is away from the first roller, the blowing body is covered on the second roller and the blowing port is facing the peripheral surface of the first roller, the extruder extrude the PP film material onto the first roller, the first roller rotates clockwise, the blowing body blows the PP film material flat and into shape, and then pulls it to the corona assembly, the pulling assembly and the winding assembly in sequence;

[0024] The present invention also provides a production process that can produce both cast film and PP film. Customers can adjust each device according to the type of film to be produced (cast film / PP film). The adjustment procedure is simple and the adjustment time is short, which is more user-friendly.

[0025] 2. The first air outlet and the first air inlet are arranged on the second roller body because when changing from cast film to PP film, the equipment on the right side of the first roller body needs to be removed and the blowing assembly needs to be reinstalled, which is very inconvenient. Therefore, a first air inlet and a first air outlet that are connected are directly arranged on the first roller body, and then an air inlet boss is arranged on the blowing body to cooperate with the first air outlet. When the first air inlet starts to take in air, the blowing body can immediately blow the first roller body and reinstall it accordingly. This structure is more convenient and quick. Moreover, since the length of the second roller body is greater than the length of the extruder discharge port and the two groups of first air inlets and the first air outlet are located on both sides of the circumference of the second roller body, when producing cast film, the rolling of the first roller body and the second roller body will not be affected by the first air inlet and the first air outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a front view structural schematic diagram of a production device capable of producing both cast film and PP film of the present invention when producing cast film;

[0027] Figure 2 This is a schematic diagram of the front view structure when producing a PP film according to the present invention;

[0028] Figure 3 It is a schematic diagram of the three-dimensional structure of the vacuum pumping assembly when producing the cast film of the present invention;

[0029] Figure 4 It is a schematic diagram of the three-dimensional structure of the flattening component when producing PP film in the present invention;

[0030] Figure 5 It is a schematic cross-sectional view of the structure after the flattening assembly and the second roller body are matched in the present invention;

[0031] Figure 6 It is a schematic diagram of the structure of the blowing body in the present invention;

[0032] Figure 7 It is a three-dimensional structural schematic diagram of the vacuum pumping component and the vacuum pumping driving component in the present invention;

[0033] Figure 8 It is a bottom view structural schematic diagram of the vacuum pumping assembly and the vacuum pumping driving assembly in the present invention;

[0034] Fig. 9 It is a schematic diagram of the three-dimensional structure of the traction assembly in the present invention.

[0035] Markings in the figure: 1, extrusion assembly; 11, extruder; 12, first roller body; 13, second roller body; 131, first air inlet; 132, first air outlet; 14, first fixed seat; 15, first movable seat; 16, first guide rail;

[0036] 2. Vacuuming assembly; 21. First vacuuming group; 211. First vacuuming head; 22. Second vacuuming group; 221. Second vacuuming head; 23. Carrying frame;

[0037] 3. Vacuum drive assembly; 31. Connecting rod; 311. Inclined section; 312. Vertical section; 313. Rotating shaft; 32. Drive cylinder;

[0038] 4. Blowing assembly; 41. Blowing body; 411. Mounting body; 4111. Air inlet convex column; 4112. Arc-shaped portion; 4113. Straight portion; 412. Air outlet; 42. Air pump;

[0039] 5. Corona assembly; 51. First conduction roller;

[0040] 6. Traction assembly; 61. Mounting seat; 62. Clamping roller; 63. First traction roller; 64. Swing arm; 641. Synchronous rod; 65. First tensioning roller; 7. Winding assembly. DETAILED DESCRIPTION

[0041] In order to make the above features and advantages of the present invention more obvious and easy to understand, embodiments are given below with reference to the accompanying drawings for detailed description as follows.

[0042] like Figure 1-9 As shown, this embodiment provides a production equipment that can produce both cast film and PP film, including an extrusion component 1, a vacuum component 2, a vacuum drive component 3, a flattening component 4, a corona component 5, a traction component 6 and a winding component 7. The extrusion component 1, the corona traction component 6, the traction component 6 and the winding component 7 are arranged in sequence from right to left.

[0043] The extrusion assembly 1 includes an extruder 11, a first roller body 12, a second roller body 13, a first fixed seat 14 and a first movable seat 15. The first roller body 12 and the second roller body 13 are arranged at intervals on the left and right, and the second roller body 13 can be away from or close to the first roller body 12. The first roller body 12 is rotatably connected to the first fixed seat 14, and the second roller body 13 is rotatably connected to the first movable seat 15. The first movable seat 15 can be away from or close to the first fixed seat 14. A guide rail groove is formed on the lower surface of the first movable seat 15. The extrusion assembly 1 also includes a first guide rail 16, which is adapted to the first rail groove. A movable wheel is formed in the rail groove of the first movable seat 15, and the circumferential surface of the movable wheel is in contact with the surface of the first guide rail 16.

[0044] The vacuum assembly 2 is located on the left side of the output end of the extruder 11 and above the first roller body 12. The vacuum assembly 2 can be far away from or close to the output end of the extruder 11. The vacuum assembly 2 includes a first vacuum group 21 and a second vacuum group 22. The first vacuum group 21 and the second vacuum group 22 are arranged at intervals on the left and right. The suction ends of the first vacuum group 21 and the second vacuum group 22 face downward. The vacuum driving assembly 3 drives the vacuum mechanism away from or close to the output end of the extruder 11. The vacuum assembly 2 includes a supporting frame 23. The supporting frame 23 is formed with a receiving groove with an opening facing downward. The inner side of the receiving groove away from the extruder 11 is an inclined surface. The first vacuum group 21 is connected to the inclined surface, and the second vacuum group 22 is connected to the bottom of the receiving groove. The first vacuum group 21 includes multiple first vacuum heads 211, and the second vacuum group 22 includes multiple second vacuum heads 221.

[0045] The vacuum drive assembly 3 includes two groups of drive bodies, which are respectively connected to the two sides of the extruder 11 and the supporting frame 23. The drive body includes a drive cylinder 32 and a connecting rod 31. One end of the connecting rod 31 is fixedly connected to the side wall of the supporting frame 23, and the other end of the connecting rod 31 is rotatably connected to the side wall of the extruder 11. A rotating shaft 313 is formed on the outward side of the connecting rod 31. The output end of the drive cylinder 32 is rotatably connected to the rotating shaft 313. The drive cylinder 32 is tilted. The connecting rod 31 includes an inclined section 311 and a vertical section 312. The rotating shaft 313 is formed on the surface of the inclined section 311. One end of the inclined section 311 is rotatably connected to the side wall of the extruder 11, and the other end of the inclined section 311 is fixedly connected to the vertical section 312. The vertical section 312 is fixedly connected to the side wall of the supporting frame 23.

[0046] When the vacuum pumping mechanism is located at the output end of the extruder 11, the first vacuum pumping group 21 and the second vacuum pumping group 22 will perform vacuum treatment on the upper surface of the first roller body 12 and the area between the first roller body 12 and the second roller body 13. Moreover, since the second vacuum pumping group 22 is closer to the output end of the extruder 11, the negative pressure below the second vacuum pumping group 22 is greater. When the extruder 11 is unloading, it can better fit the first roller head, and no bubbles will be generated between the cast film and the first roller body 12, thereby causing the formed cast film to have wrinkles.

[0047] The flattening assembly 4 includes a blowing body 41, which can be covered on the upper end of the second roller body 13. The blowing body 41 is used to flatten the film on the first roller body 12. The lengths of the first roller body 12 and the second roller body 13 are greater than the length of the output end of the extruder 11. The second roller body 13 is formed with a first air outlet 132 and a first air inlet 131 on both sides of the circumference. The first air outlet 132 and the first air inlet 131 are distributed clockwise along the axis of the second roller body 13. The first air outlet 132 and the first air inlet 131 are connected. The blowing body 41 includes an air pump 42, a mounting body 411 and an outlet gas 412. The lower surface of the mounting body 411 is in contact with the circumference of the second roller body 13. The mounting body 411 An air cavity is formed, and air inlet bosses 4111 are formed on both sides of the lower surface of the mounting body 411, the air inlet bosses 4111 are matched with the first air outlet 132, the air outlet 412 is located at the lower end of the mounting body 411 facing the first roller body 12, the air inlet bosses 4111, the air cavity and the output end of the air outlet 412 are connected; the ventilation pump 42 is located on the first movable seat 15, the output end of the air pump 42 is directly connected to the first air inlet 131 through a connecting pipe, the blowing body 41 is covered on the second roller body 13 and the blowing port faces the circumference of the first roller body 12, the extruder 11 extrude the PP film material onto the first roller body 12, the first roller body 12 rotates clockwise, and the blowing body 41 blows the PP film material flat into shape.

[0048] Preferably, the apex of the second roller body 13 is higher than the height of the first movable seat 15, the length of the mounting body 411 is equal to the length of the first movable seat 15, the lower surface of the mounting body 411 includes an arc portion 4112 and straight surface portions 4113 located on both sides of the arc portion 4112, the arc portion 4112 fits with the upper end of the second roller body 13, and the two sides of the straight surface portion 4113 fit with the upper surface of the first movable seat 15, and the mounting body 411 is carried on the first movable seat 15, which can play a role in limiting the rotation of the second roller body 13. Further, a first threaded hole penetrating the straight surface portion 4113 is opened on both sides of the mounting body 411, and a second threaded hole is started on the upper surface of the first movable seat 15, the first threaded hole is adapted to the second threaded hole, and the first threaded hole and the second threaded hole are retracted by bolts, so that the mounting body 411 is fixed on the first movable seat 15, and the stability is better.

[0049] Three first conductive rollers 51 are formed below the corona assembly 5 , and the three first conductive rollers 51 are arranged in sequence and at intervals.

[0050] The traction assembly 6 includes two mounting seats 61, two clamping rollers 62, a first traction roller 63, two swing arms 64 and a first tensioning roller 65. The two clamping rollers 62 are arranged at intervals up and down, and the minimum distance between the circumferences of the two clamping rollers 62 is less than the thickness of the cast film. The swing arm 64 includes a rotating part and a swinging part. The first tensioning roller 65 is rotatably connected to the swinging part. The first traction roller 63 is located on the left side of the first tensioning roller 65, and the two clamping rollers 62 are located on the right side of the first tensioning roller 65. The cast film / PP film passes through the two clamping rollers 62, the first tensioning roller 63 and the first tensioning roller 64 in sequence. 5 and the lower end of the circumference of the first traction roller 63. Specifically, the mounting seat 61 is formed with a first accommodating groove with an opening facing upward and penetrating two corresponding side walls. The two clamping rollers 62, the first traction roller 63 and the swing arm 64 are located in the first accommodating groove. The two clamping rollers 62, the first traction roller 63 and the swing arm 64 are rotatably connected to the groove wall of the first accommodating groove. The two swing arms 64 are rotatably connected to the two corresponding groove walls of the first accommodating groove respectively. Any swing arm 64 is driven to rotate by a motor, and a synchronization rod 641 is connected between the rotating parts of the two swing arms 64.

[0051] The winding assembly 7 is a turntable double-roller winding machine in the prior art.

[0052] The present invention designs a production device that can produce both cast film and PP film. When the cast film is produced, the vacuum component 2 is close to the output end of the extruder 11, and the flattening body is away from the second roller body 13. The vacuum component 2 performs vacuum on the first roller body 12 and between the first roller body 12 and the second roller body 13 to form a left and right air pressure difference (to prevent bubbles from being generated in the cast film during rolling). The extruder 11 extrude the cast film material onto the first roller body 12, and the first roller body 12 and the second roller body 13 perform rolling and forming, and then the film is sequentially pulled to the first conductive roller 51, the pulling component 6 and the winding component 7.

[0053] When making PP film, the vacuum assembly 2 is away from the extrusion output end, the second roller 13 is away from the first roller 12, the blowing body 41 is covered on the second roller 13 and the blowing port is facing the circumference of the first roller 12, the extruder 11 extrude the PP film material onto the first roller 12, the first roller 12 rotates clockwise, the blowing body 41 blows the PP film material flat into shape, and then pulls it to the corona assembly 5, the traction assembly 6 and the winding assembly 7 in sequence.

[0054] A production process for producing both cast film and PP film, comprising the following steps:

[0055] When producing cast film: first, the cast film is produced, the vacuum drive component 3 drives the supporting frame 23 to be close to the output end of the extruder 11, the first vacuum group 21 and the second vacuum group 22 start vacuuming, the first movable seat 15 moves toward the first fixed seat 14, the distance between the first roller body 12 and the second roller body 13 is equal to the set thickness of the cast film, the extruder 11 starts to extrude the cast film between the first roller body 12 and the second roller body 13 of the cast film hopper, and the first roller body 12 and the second roller body 13 are rolled against each other.

[0056] The cast film is then rolled by the first roller 12 and the second roller 13 and pulled onto the first conduction roller 51 below the corona assembly 5. The cast film is then pulled from the first conduction roller 51 to the traction assembly 6, where it is pulled and tensioned and finally wound up by the winding assembly 7.

[0057] When producing PP film: first, the vacuum drive component 3 drives the supporting frame 23 away from the output end of the extruder 11, and the first movable seat 15 moves away from the first fixed seat 14. The arc portion 4112 of the mounting body 411 is fitted with the upper end of the second roller body 13 and the air inlet boss 4111 on the arc portion 4112 is inserted into the first air outlet hole 132 of the second roller body 13. The output end of the air pump 42 is connected to the first air inlet on the second roller body 13, and the outlet gas 412 blows toward the circumference of the first roller body 12. The extruder 11 starts to discharge material, and the outlet gas 412 blows the PP film material flat to the circumference of the first roller body 12.

[0058] The PP film that has been flattened by the blowing gas is then pulled from the first roller body 12 into the corona assembly 5 for corona treatment, then enters the pulling assembly 6 for pulling and tensioning, and finally is rolled up by the winding assembly 7.

[0059] Through the above production process, customers can adjust each device according to the type of film to be produced (cast film / PP film). The adjustment procedure is simple and the adjustment time is short, which is more user-friendly.

[0060] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for illustrating the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which shall fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A production equipment that can produce both cast film and PP film, Features: The invention comprises an extrusion assembly, a vacuum assembly, a flattening assembly, a corona assembly, a traction assembly and a winding assembly. The extrusion assembly comprises an extruder, a first roller body and a second roller body. The first roller body and the second roller body are arranged at a left-right interval. The second roller body can be away from or close to the first roller body. The vacuuming component is located on the left side of the output end of the extruder and above the first roller body. The vacuuming component can be far away from or close to the output end of the extruder. The flattening component includes a blowing body, which can be covered on the upper end of the second roller body. The blowing body is used to flatten the film on the first roller body. A first conductive roller is formed below the corona assembly, and the extrusion assembly, the corona traction assembly, the traction assembly and the winding assembly are sequentially arranged from right to left at intervals; The length of the first roller body and the second roller body is greater than the length of the output end of the extruder, and a first air outlet and a first air inlet are formed on both sides of the circumference of the second roller body, and the first air outlet and the first air inlet are spaced clockwise along the axis of the second roller body, and the first air outlet and the first air inlet are connected, and the blowing body includes a mounting body and an air outlet, and the lower surface of the mounting body is in contact with the circumference of the second roller body, and an air cavity is formed on the mounting body, and air inlet bosses are formed on both sides of the lower surface of the mounting body, and the air inlet bosses are adapted to the first air outlet, and the air outlet is located at the lower end of a side of the mounting body facing the first roller body, and the air inlet bosses, the air cavity and the output end of the air outlet are connected.

2. A production device capable of producing both cast film and PP film according to claim 1, Features: The extrusion assembly further comprises a first fixed seat and a first movable seat, the first roller body is rotatably connected to the first fixed seat, the second roller body is rotatably connected to the first movable seat, and the first movable seat can be away from or close to the first fixed seat.

3. A production equipment capable of producing both cast film and PP film according to claim 2, Features: A guide rail groove is formed on the lower surface of the first movable seat, and the extrusion assembly also includes a first guide rail, which is adapted to the first track groove. A moving wheel is formed in the track groove of the first movable seat, and the circumference of the moving wheel is in contact with the surface of the first guide rail.

4. A production equipment capable of producing both cast film and PP film according to claim 1, Features: The apex of the second roller body is higher than the height of the first movable seat, the length of the mounting body is equal to the length of the first movable seat, the lower surface of the mounting body includes an arc portion and straight surface portions on both sides of the arc portion, the arc portion is in contact with the upper end of the second roller body, and both sides of the straight surface portions are in contact with the upper surface of the first movable seat.

5. A production equipment capable of producing both cast film and PP film according to claim 1, Features: The flattening assembly also includes an air pump, and the output end of the air pump is directly connected to the first air inlet hole through a connecting pipe.

6. A production equipment capable of producing both cast film and PP film according to claim 1, Features: The cast film production equipment also includes a vacuum driving component, which includes a first vacuum group and a second vacuum group. The first vacuum group and the second vacuum group are arranged with a left and right interval, and the suction ends of the first vacuum group and the second vacuum group are downward. The vacuum driving component drives the vacuum mechanism away from or close to the output end of the extruder.

7. A production device capable of producing both cast film and PP film according to claim 6, Features: The vacuum pumping assembly includes a supporting frame, the supporting frame is formed with a accommodating groove with an opening facing downward, the inner side of the accommodating groove away from the extrusion mechanism is an inclined surface, the first vacuum pumping group is connected to the inclined surface, the second vacuum pumping group is connected to the bottom of the accommodating groove, the first vacuum pumping group includes a plurality of first vacuum pumping heads, and the second vacuum pumping group includes a plurality of second vacuum pumping heads.

8. A production equipment capable of producing both cast film and PP film according to claim 7, Features: The vacuum driving assembly includes two groups of driving bodies, which are respectively connected to the two sides of the extruder and the carrier frame, and the driving body includes a driving cylinder and a connecting rod, one end of the connecting rod is fixedly connected to the side wall of the carrier frame, and the other end of the connecting rod is rotatably connected to the side wall of the extrusion mechanism, and a rotating shaft is formed on the outward side of the connecting rod, and the output end of the driving cylinder is rotatably connected to the rotating shaft, and the driving cylinder is tilted; The connecting rod includes an inclined section and a vertical section, the rotating shaft is formed on the surface of the inclined section, one end of the inclined section is rotatably connected to the side wall of the extrusion mechanism, the other end of the inclined section is fixedly connected to the vertical section, and the vertical section is fixedly connected to the side wall of the supporting frame.

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