Polyethylene film slitting device

Abstract

A polyethylene film slitting device comprises a slitting roller. Each winding assembly comprises a driving assembly, a negative pressure adsorber, a film cutting device, a rotating device, a roller body mounting device and a negative pressure air draft device, the negative pressure adsorber and the film cutting device are arranged on the driving assembly, and a winding roller is detachably arranged on the roller body mounting device and used for mounting the winding roller to a target working position; the winding roller comprises a movable roller, two fixed columns and a driven gear ring, the fixed columns are arranged at the two ends of the movable roller correspondingly, the driven gear ring is arranged on the movable roller and detachably connected with the rotating device, the rotating device is used for driving the movable roller to rotate, an air suction channel is formed in the movable roller, a through hole is formed in one of the two fixed columns, and the air suction channel is communicated with the air suction channel. The air suction channel is communicated with the through hole, and the negative pressure air draft device is detachably connected with the through hole and used for providing negative pressure for the air suction channel. Therefore, the wind-up roller can be quickly replaced, so that the slitting efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of polyethylene film production, in particular to a polyethylene film slitting device. Background Art

[0002] Polyethylene film, or PE film, refers to a film produced from PE particles, which is mainly used in food packaging and agricultural fields such as field planting and greenhouse planting. In the production of PE roll film, PE roll film needs to be slit, rolled and packaged after forming.

[0003] In the related art, after a winding roll is used to complete a winding, the wound film roll needs to be removed from the equipment, and then a new winding roll is installed, and the film is rewound on the new winding roll. This installation process consumes a long time, which reduces the processing efficiency of the equipment. Summary of the invention

[0004] The present invention aims to solve one of the technical problems in the above-mentioned technology at least to some extent.

[0005] To this end, the purpose of the present invention is to provide a polyethylene film slitting device that can quickly replace the winding roller to improve the slitting efficiency.

[0006] To achieve the above-mentioned object, the present invention proposes a polyethylene film slitting device, comprising: a slitting roller, used for slitting polyethylene film; a plurality of winding components, the winding components comprising: a driving component, a negative pressure absorber, a film cutting device, a rotating device, a roller body mounting device and a negative pressure exhaust device, wherein the negative pressure absorber and the film cutting device are respectively arranged on the driving component, the negative pressure absorber is used for adsorbing polyethylene film, the roller body mounting device is detachably provided with a winding roller, which is used for installing the winding roller to a target working position; the winding roller comprises: a movable roller, two fixed columns, and a driven gear ring, wherein the fixed columns are respectively arranged at both ends of the movable roller, the driven gear ring is arranged on the movable roller and is detachably connected to the rotating device, the rotating device is used for driving the movable roller to rotate, the movable roller is provided with an air suction channel, one of the two fixed columns is provided with a through hole, the air suction channel is connected to the through hole, the negative pressure exhaust device is detachably connected to the through hole, and is used for adsorbing the film on the movable roller through the air suction channel.

[0007] In one embodiment of the present invention, the roller installation device includes: a first motor, a drive shaft and two plates, wherein the drive shaft is arranged on the drive end of the first motor, the two plates are respectively arranged on the drive shaft, and electromagnet clamps are respectively arranged at both ends of the plate bodies, and the electromagnet clamps are magnetically connected to the fixed column.

[0008] In one embodiment of the present invention, the negative pressure exhaust device includes: a first electric telescopic rod, a connecting plug and a negative pressure fan, wherein the connecting plug is arranged at the driving end of the first electric telescopic rod, the connecting plug is connected to the negative pressure fan through a connecting hose, and is clamped with the through hole.

[0009] In one embodiment of the present invention, the rotating device includes: a first hydraulic telescopic device, a second motor and a driving wheel, wherein the second motor is arranged at the driving end of the first hydraulic telescopic device, the driving wheel is arranged at the driving end of the second motor, and the driving wheel is meshed with the driven gear ring.

[0010] In one embodiment of the present invention, the driving assembly includes: a first horizontal driving device and a second hydraulic telescopic device, wherein the second hydraulic telescopic device is arranged on the first horizontal driving device, and the negative pressure adsorber is arranged at the driving end of the second hydraulic telescopic device.

[0011] In one embodiment of the present invention, the first horizontal driving device includes: a driving bin, a third motor, a ball screw, a ball slider and a connecting piece, wherein the third motor is arranged in the driving bin, the ball screw is arranged at the driving end of the third motor, the ball slider is arranged on the ball screw, and the ball slider is connected to the driving end of the second hydraulic telescopic device through the connecting piece.

[0012] In one embodiment of the present invention, the film cutting device includes: a second electric telescopic rod, a second horizontal driving device and a cutting knife, wherein the second electric telescopic rod is arranged on the negative pressure adsorber, the second horizontal driving device is arranged at the driving end of the second electric telescopic rod, the cutting knife is arranged on the second horizontal driving device, and the second horizontal driving device is used to drive the cutting knife to cut the film.

[0013] In one embodiment of the present invention, the second horizontal driving device has the same structure as the first horizontal driving device, and a visual sensor is provided on the second horizontal driving device.

[0014] In one embodiment of the present invention, the air suction channel includes: an air suction groove and a channel body, wherein the air suction groove is opened on the movable roller, the channel body is opened in the movable roller, one end of the channel body is connected to the air suction groove, and the other end of the channel body is connected to the through hole.

[0015] In one embodiment of the present invention, it also includes: a frame, the slitting roller and the multiple winding assemblies are respectively arranged on the frame, the frame is provided with an unwinding roller and a cloth guide roller group, and the slitting roller is arranged between the unwinding roller and the winding assembly.

[0016] Beneficial effects of the present invention: The driving component drives the negative pressure adsorber to pull the cut film onto the active roller. After the film is adsorbed on the active roller through the suction channel, the rotating device drives the active roller to reel the film, and quickly winds the film on a new reel to reduce the time required to install a new reel and improve the processing efficiency of the equipment.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which: Figure 1 is a schematic diagram of the overall structure of a polyethylene film slitting device according to an embodiment of the present invention; Figure 2 A schematic diagram of the top view of a polyethylene film slitting device according to an embodiment of the present invention; Figure 3 is a schematic structural diagram of a winding assembly according to an embodiment of the present invention; Figure 4 It is a schematic side view of the structure of a winding assembly according to one embodiment of the present invention; Figure 5 is a schematic cross-sectional structural diagram of a winding assembly according to an embodiment of the present invention; Figure 6 is a schematic cross-sectional structural diagram of a film cutting device according to an embodiment of the present invention; Figure 7 The figure is a schematic cross-sectional structural diagram of a winding roller according to an embodiment of the present invention.

[0019] As shown in the figure: 1. Slitting roller; 2. Winding assembly; 21. Driving assembly; 211. First horizontal driving device; 2111. Driving compartment; 2112. Third motor; 2113. Ball screw; 2114. Ball slider; 2115. Connector; 212. Second hydraulic telescopic device; 22. Negative pressure absorber; 23. Film cutting device; 231. Second electric telescopic rod; 232. Second horizontal driving device; 233. Cutting knife; 24. Rotating device; 241. First hydraulic telescopic device; 242. Second Motor; 243, driving wheel; 25, roller mounting device; 251, first motor; 252, driving shaft; 253, plate; 254, electromagnet clamp; 26, negative pressure exhaust device; 261, first electric telescopic rod; 262, connecting plug; 263, negative pressure fan; 27, winding roller; 271, movable roller; 272, fixing column; 273, driven gear ring; 3, suction channel; 31, suction groove; 32, channel body; 4, through hole; 5, visual sensor; 6, frame; 7, unwinding roller; 8, cloth guide roller group. DETAILED DESCRIPTION

[0020] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0021] The polyethylene film slitting device according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0022] like Figure 1 , Figure 2 , Figure 3 and Figure 7 As shown, the polyethylene film slitting device according to the embodiment of the present invention may include: a slitting roller 1 and a plurality of winding components 2.

[0023] The slitting roller 1 is used for slitting polyethylene film, and the winding assembly 2 may include: a driving assembly 21, a negative pressure adsorber 22, a film cutting device 23, a rotating device 24, a roller mounting device 25 and a negative pressure exhaust device 26, wherein the negative pressure adsorber 22 and the film cutting device 23 are respectively arranged on the driving assembly 21, the negative pressure adsorber 22 is used for adsorbing polyethylene film, and the roller mounting device 25 is detachably provided with a winding roller 27 for installing the winding roller 27 to the target working position.

[0024] It should be noted that the number of the winding assemblies 2 described in this embodiment is the same as the number of films that can be slit by the slitting roller 1, and the winding assemblies 2 for winding two adjacent slit films are arranged alternately up and down.

[0025] The winding roller 27 includes: a movable roller 271, two fixed columns 272, and a driven gear ring 273, wherein the fixed columns 272 are respectively provided at both ends of the movable roller 271, the driven gear ring 273 is provided on the movable roller 271, and is detachably connected to the rotating device 24, the rotating device 24 is used to drive the movable roller 271 to rotate, the movable roller 271 is provided with an air suction channel 3, one of the two fixed columns 272 is provided with a through hole 4, the air suction channel 3 is connected to the through hole 4, and the negative pressure exhaust device 26 is detachably connected to the through hole 4, and is used to provide negative pressure to the air suction channel 3.

[0026] It should be noted that the movable roller 271 described in this embodiment can be connected to the two fixed columns 272 through bearings respectively, the movable roller 271 is rotatably set between the two fixed columns 272, and the negative pressure exhaust device 26 can adsorb the film on the movable roller 271 through the suction channel 3.

[0027] In one embodiment of the present invention, Figure 3 , Figure 4 and Figure 5 As shown, the roller installation device 25 may include: a first motor 251, a driving shaft 252 and two plates 253, wherein the driving shaft 252 is arranged on the driving end of the first motor 251, and the two plates 253 are respectively arranged on the driving shaft 252, and electromagnet clamps 254 are respectively arranged at both ends of the plate 253, and the electromagnet clamps 254 are magnetically connected to the fixing column 272.

[0028] It can be understood that the first motor 251 described in this embodiment can drive the two plates 253 to rotate simultaneously through the driving shaft 252, and the electromagnet clamp 254 can fix the winding roller 27 on the roller mounting device 25 through the magnetic connection with the fixed column 272, so as to facilitate the installation and disassembly of the winding roller 27.

[0029] In one embodiment of the present invention, Figure 2 , Figure 3 and Figure 5 As shown, the negative pressure exhaust device 26 may include: a first electric telescopic rod 261, a connecting plug 262 and a negative pressure fan 263, wherein the connecting plug 262 is arranged at the driving end of the first electric telescopic rod 261, and the connecting plug 262 is connected to the negative pressure fan 263 through a connecting hose (not shown in the figure) and is clamped with the through hole 4.

[0030] It can be understood that the connecting plug 262 described in this embodiment can be plugged into the through hole 4 on the fixed column 272, the negative pressure fan 263 can be connected to the suction channel 3 through a connecting hose, and the suction channel 3 on the movable roller 271 can adsorb the film on the movable roller 271.

[0031] In one embodiment of the present invention, Figure 3 and Figure 5 As shown, the rotating device 24 may include: a first hydraulic telescopic device 241, a second motor 242 and a driving wheel 243, wherein the second motor 242 is arranged at the driving end of the first hydraulic telescopic device 241, the driving wheel 243 is arranged at the driving end of the second motor 242, and the driving wheel 243 is meshed with the driven gear ring 273.

[0032] It can be understood that the first hydraulic telescopic device 241 described in this embodiment can adjust the working position of the driving wheel 243 through the second motor 242. By making the driving wheel 243 mesh with the driven gear ring 273, the rotating device 24 can drive the movable roller 271 to rotate. By docking and separating the driving wheel 243 and the driven gear ring 273, the working position of the winding roller 27 can be conveniently adjusted.

[0033] Specifically, after the film (polyethylene film) is slit by the slitting roller 1, it is rolled up by the rotating winding roller 27. After rolling up to the target size, the driving component 21 controls the negative pressure adsorbent 22 to adsorb the film. After adsorption, the film is cut by the film cutting device 23. The first motor 251 drives the plate 253 to rotate through the driving shaft 252, so that the old winding roller 27 (the winding roller 27 that has been rolled up) moves to the unloading area, and the new winding roller 27 moves to the winding area. Relevant personnel can remove the old winding roller 27 and replace it with a new winding roller 27 for the next replacement.

[0034] While the first hydraulic telescopic device 241 drives the second motor 242 to move, the second motor 242 drives the driving wheel 243 to rotate so that the driving wheel 243 engages with the driven wheel. The first electric telescopic rod 261 drives the connecting plug 262 to be inserted into the through hole 4 on the fixed column 272. The driving component 21 controls the negative pressure adsorber 22 to approach the movable roller 271, and makes the film adsorbed by the negative pressure adsorber 22 contact with the movable roller 271. The negative pressure fan 263 can be connected with the suction channel 3 through a connecting hose. The suction channel 3 on the movable roller 271 can adsorb the film on the movable roller 271. By quickly completing the replacement of the winding roller 27, the downtime is reduced and the efficiency of slitting and winding is improved.

[0035] In one embodiment of the invention, Figure 3 and Figure 5As shown, the driving assembly 21 may include: a first horizontal driving device 211 and a second hydraulic telescopic device 212, wherein the second hydraulic telescopic device 212 is arranged on the first horizontal driving device 211, and the negative pressure adsorber 22 is arranged at the driving end of the second hydraulic telescopic device 212.

[0036] The first horizontal driving device 211 may include: a driving bin 2111, a third motor 2112, a ball screw 2113, a ball slider 2114 and a connecting piece 2115, wherein the third motor 2112 is arranged in the driving bin 2111, the ball screw 2113 is arranged at the driving end of the third motor 2112, the ball slider 2114 is arranged on the ball screw 2113, and the ball slider 2114 is connected to the driving end of the second hydraulic telescopic device 212 through the connecting piece 2115.

[0037] It can be understood that the third motor 2112 described in this embodiment can drive the ball screw 2113 to rotate, the ball slider 2114 can move on the rotating ball screw 2113, and the ball screw 2113 can drive the target object to move through the connecting member 2115.

[0038] In one embodiment of the invention, Figure 5 and Figure 6 As shown, the film cutting device 23 may include: a second electric telescopic rod 231, a second horizontal driving device 232 and a cutting knife 233, wherein the second electric telescopic rod 231 is arranged on the negative pressure absorber 22, the second horizontal driving device 232 is arranged at the driving end of the second electric telescopic rod 231, and the cutting knife 233 is arranged on the second horizontal driving device 232, and the second horizontal driving device 232 is used to drive the cutting knife 233 to cut the film. The second horizontal driving device 232 has the same structure as the first horizontal driving device 211, and the second horizontal driving device 232 is provided with a visual sensor 5.

[0039] The air suction channel 3 may include: an air suction groove 31 and a channel body 32, wherein the air suction groove 31 is opened on the movable roller 271, the channel body 32 is opened in the movable roller 271, one end of the channel body 32 is connected to the air suction groove 31, and the other end of the channel body 32 is connected to the through hole 4 It should be noted that the visual sensor 5 described in this embodiment can assist the rotating device 24 to move the suction channel 3 on the movable roller 271 to a suitable working position so that the film can be adsorbed on the movable roller 271 .

[0040] In one embodiment of the invention, Figure 1 and Figure 2As shown, it may also include: a frame 6, the slitting roller 1 and the multiple winding assemblies 2 are respectively arranged on the frame 6, the frame 6 is provided with a reeling roller 7 and a cloth guide roller group 8, and the slitting roller 1 is arranged between the reeling roller 7 and the winding assembly 2.

[0041] It can be understood that the first horizontal driving device 211 , the first hydraulic telescopic device 241 , the first motor 251 , and the first electric telescopic rod 261 are respectively mounted on the frame 6 .

[0042] It should be noted that the motors described in the above embodiments (for example, the first motor 251, the second motor 242, the third motor 2112, etc.) are equipped with brakes, which can be used to quickly stop the motors. A reduction gearbox is provided on the driving end of the motor, and the driving end of the motor is connected to the input end of the reduction gearbox. The output end of the reduction gearbox constitutes the driving end of the motor, and the speed of the motor output is adjusted by the reduction gearbox.

[0043] In summary, the polyethylene film slitting device according to the embodiment of the present invention can quickly replace the winding roller to improve the slitting efficiency.

[0044] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0045] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0046] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A polyethylene film slitting device, characterized in that: include: A slitting roller (1), used for slitting the polyethylene film; A plurality of winding assemblies (2), the winding assemblies (2) comprising: a driving assembly (21), a negative pressure absorber (22), a film cutting device (23), a rotating device (24), a roller mounting device (25) and a negative pressure exhaust device (26), wherein the negative pressure absorber (22) and the film cutting device (23) are respectively arranged on the driving assembly (21), the negative pressure absorber (22) is used to absorb the polyethylene film, and the roller mounting device (25) is detachably provided with a winding roller (27) for mounting the winding roller (27) at a target working position; The winding roller (27) comprises: a movable roller (271), two fixed columns (272), and a driven gear ring (273), wherein the fixed columns (272) are respectively provided at both ends of the movable roller (271), the driven gear ring (273) is provided on the movable roller (271), and is detachably connected to the rotating device (24), the rotating device (24) is used to drive the movable roller (271) to rotate, an air suction channel (3) is provided on the movable roller (271), a through hole (4) is provided on one of the two fixed columns (272), the air suction channel (3) and the through hole (4) are connected, and the negative pressure exhaust device (26) is detachably connected to the through hole (4) and is used to provide negative pressure to the air suction channel (3).

2. The polyethylene film slitting device according to claim 1, characterized in that: The roller installation device (25) comprises: a first motor (251), a drive shaft (252) and two plates (253), wherein the drive shaft (252) is arranged on the drive end of the first motor (251), the two plates (253) are respectively arranged on the drive shaft (252), and electromagnet clamps (254) are respectively arranged at both ends of the plates (253), and the electromagnet clamps (254) are magnetically connected to the fixing columns (272).

3. The polyethylene film slitting device according to claim 1, characterized in that: The negative pressure exhaust device (26) comprises: a first electric telescopic rod (261), a connecting plug (262) and a negative pressure fan (263), wherein the connecting plug (262) is arranged at the driving end of the first electric telescopic rod (261), and the connecting plug (262) is connected to the negative pressure fan (263) via a connecting hose and is engaged with the through hole (4).

4. The polyethylene film slitting device according to claim 1, characterized in that: The rotating device (24) comprises: a first hydraulic telescopic device (241), a second motor (242) and a driving wheel (243), wherein the second motor (242) is arranged at the driving end of the first hydraulic telescopic device (241), the driving wheel (243) is arranged at the driving end of the second motor (242), and the driving wheel (243) and the driven gear ring (273) are meshed with each other.

5. The polyethylene film slitting device according to claim 1, characterized in that: The driving assembly (21) comprises: a first horizontal driving device (211) and a second hydraulic telescopic device (212), wherein the second hydraulic telescopic device (212) is arranged on the first horizontal driving device (211), and the negative pressure adsorber (22) is arranged at the driving end of the second hydraulic telescopic device (212).

6. The polyethylene film slitting device according to claim 5, characterized in that: The first horizontal drive device (211) comprises: a drive bin (2111), a third motor (2112), a ball screw (2113), a ball slider (2114) and a connecting piece (2115), wherein the third motor (2112) is arranged in the drive bin (2111), the ball screw (2113) is arranged at the drive end of the third motor (2112), the ball slider (2114) is arranged on the ball screw (2113), and the ball slider (2114) is connected to the drive end of the second hydraulic telescopic device (212) via the connecting piece (2115).

7. The polyethylene film slitting device according to claim 6, characterized in that: The film cutting device (23) comprises: a second electric telescopic rod (231), a second horizontal driving device (232) and a cutting knife (233), wherein the second electric telescopic rod (231) is arranged on the negative pressure absorber (22), the second horizontal driving device (232) is arranged at the driving end of the second electric telescopic rod (231), the cutting knife (233) is arranged on the second horizontal driving device (232), and the second horizontal driving device (232) is used to drive the cutting knife (233) to cut the film.

8. The polyethylene film slitting device according to claim 7, characterized in that: The second horizontal driving device (232) has the same structure as the first horizontal driving device (211), and a visual sensor (5) is provided on the second horizontal driving device (232).

9. The polyethylene film slitting device according to claim 1, characterized in that: The air suction channel (3) comprises: an air suction groove (31) and a channel body (32), wherein the air suction groove (31) is provided on the movable roller (271), the channel body (32) is provided in the movable roller (271), one end of the channel body (32) is connected to the air suction groove (31), and the other end of the channel body (32) is connected to the through hole (4).

10. The polyethylene film slitting device according to claim 1, characterized in that: Also includes: A frame (6), the slitting roller (1) and the plurality of winding assemblies (2) are respectively arranged on the frame (6), a reeling roller (7) and a cloth guide roller group (8) are arranged on the frame (6), and the slitting roller (1) is arranged between the reeling roller (7) and the winding assemblies (2).

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