A cutting device for plastic film processing

Abstract

The utility model relates to the technical field of plastic film processing equipment, specifically disclose a kind of cutting device for plastic film processing, including supporting mechanism and cutting mechanism, the upper portion of supporting mechanism is provided with cutting mechanism, supporting mechanism includes base, the upper portion of base is symmetrically provided with two mounting plates, the side of two mounting plates mutually away can detachably connected with support seat, cutting mechanism includes first support, the top of first support is symmetrically connected with two telescopic rods, the telescopic end of two telescopic rods is connected with second support, the lower portion of second support both ends is connected with link plate, detachably connected with slide bar between two link plates, the outside of slide bar is provided with multiple slide sleeves, the lower portion of slide sleeve is provided with tool holder, the quantity of support sleeve and cutting tool can be adjusted according to actual cutting requirement, the device can be cut into a plurality of plastic film with certain width by the device, improve the practicability of the device.

Description

Technical Field

[0001] This utility model relates to the technical field of plastic film processing equipment, and specifically discloses a cutting device for plastic film processing. Background Technology

[0002] Plastic film is a thin and flexible sheet material with a thickness between 0.01 and 0.25 mm, made from polymer synthetic materials such as polyethylene, polypropylene, and polyvinyl chloride as the main raw materials through processes such as extrusion, blow molding, and casting. It has the characteristics of transparency, flexibility, chemical stability, and barrier properties. In the process of plastic film processing, it is usually necessary to use a cutting device to cut the wider plastic film into plastic films of a specific width for subsequent processing and use.

[0003] Chinese patent CN218476796U discloses a cutting device for plastic film processing, including two symmetrically arranged mounting plates. Guide rods are fixedly connected to the side walls of the two mounting plates near the top, and a first lead screw is rotatably connected to the side wall below the guide rod. A crossbar is fixedly connected to the side wall near the bottom. Two rectangular plates are symmetrically arranged vertically and fixedly connected to the side wall of the movable block. A second lead screw is vertically rotatably connected between the two rectangular plates. An L-shaped lifting block is threaded through the outer wall of the second lead screw. An inclined cutting blade is fixedly installed at the bottom of the L-shaped lifting block. A sleeve is sleeved on the outer wall of the crossbar. The outer wall of the sleeve has a plurality of uniformly arranged cutting grooves. This utility model relates to the field of plastic film processing technology. This invention addresses the problem that cutting blades for plastic film processing are typically fixedly mounted on the processing line, requiring disassembly and reassembly for different cutting positions, which is inconvenient. Furthermore, the aforementioned devices cannot adjust the number of cutters and sleeves according to actual usage needs, limiting the ability to cut only one sheet of film into two at a time, thus restricting the applicability and practicality of the device. Therefore, to solve these problems, this invention proposes a cutting device for plastic film processing. Utility Model Content

[0004] The present invention aims to provide a cutting device for processing plastic film, which can adjust the number of support sleeves and cutters according to actual cutting needs, thereby improving the utilization rate of support sleeves and cutters. At the same time, the device can cut the same plastic film into multiple plastic films with a certain width, thus enriching the application range of the device and improving its practicality.

[0005] This utility model is achieved through the following technical solution:

[0006] A cutting device for processing plastic film includes a support mechanism and a cutting mechanism. The cutting mechanism is disposed above the support mechanism. The support mechanism includes a base, and two mounting plates are symmetrically arranged above the base. Support seats are detachably connected to the opposite sides of the two mounting plates. Chucks are rotatably connected to the upper ends of the two support seats. An air shaft is detachably connected between the two chucks. Multiple support sleeves are disposed on the outer side of the air shaft. The cutting mechanism includes a first bracket, and two telescopic rods are symmetrically connected to the top of the first bracket. A second bracket is connected to the telescopic ends of the two telescopic rods. Scale plates are disposed on both sides of the second bracket. Connecting plates are connected to both ends of the lower part of the second bracket. A sliding rod is detachably connected between the two connecting plates. Multiple sliding sleeves are disposed on the outer side of the sliding rod. A lead screw is threaded to one side of each sliding sleeve. A blade holder is disposed below the sliding sleeve, and a cutting blade is disposed on the inner side of the blade holder.

[0007] As a further feature of the above solution, two universal wheels are symmetrically connected to both ends of the lower part of the base to facilitate the adjustment of the position of the device. The support base is detachably connected to the mounting plate, which facilitates the disassembly and assembly of the support base during the adjustment of the number of support sleeves on the outside of the air shaft, so that the chuck at the upper end of the support base can be separated from the air shaft. The first bracket is detachably connected to the base to facilitate the installation and maintenance of the first bracket and the cutting mechanism.

[0008] As a further feature of the above solution, the sliding sleeve is slidably connected to the sliding rod, and a limiting block is connected to the upper side of the sliding sleeve near the lead screw. An alignment arrow is connected to the upper side of the limiting block to facilitate the user in determining the position of the sliding sleeve and the cutter below it.

[0009] As a further provision of the above solution, a second slot and a first slot are respectively provided at one end of the limiting block and the lead screw. A second rod and a first rod are respectively provided inside the second slot and the first slot, and are slidably engaged with the second rod and the first rod. The ends of the first rod and the second rod away from the lead screw are connected to a limiting plate. After the lead screw stops rotating, the friction between the first rod and the second rod and the first slot and the second slot respectively will resist the rotation of the lead screw, preventing the lead screw from loosening during the cutting of plastic film, thereby keeping the cutter stable during use.

[0010] As a further feature of the above solution, two mounting shafts are symmetrically connected to the lower sides of the sliding sleeve, and two mounting holes are symmetrically provided on the upper sides of the tool holder. The mounting shafts pass through the interior of the mounting holes, and nuts are threaded onto the outer side of the mounting shafts to facilitate the assembly and disassembly of the tool holder.

[0011] As a further feature of the above solution, a support shaft is provided through the middle of the cutter, and the support shaft is detachably connected to the cutter holder, which facilitates the installation and maintenance of the cutter.

[0012] As a further feature of the above solution, a controller is provided on one side of the first bracket to facilitate the extension and retraction of the two telescopic rods in the device.

[0013] At least one of the multiple omnidirectional wheels in this invention is an omnidirectional brake wheel. The line connecting the projections of the symmetrical axis of the arrow and the cutter onto the ground is perpendicular to the slide bar. The controller in this invention is a PLC controller or a single-chip microcomputer controller, etc.

[0014] The present invention has the following beneficial effects during use:

[0015] The detachable connection between the mounting plate and the support base in the support mechanism allows users to easily separate the support base from the mounting plate during the process of adjusting the number of support sleeves on the outside of the same air shaft according to the cutting requirements of the plastic film. This allows a chuck to be separated from one end of the air shaft, providing space for the placement of the support sleeves and the removal of the outside of the air shaft. After the number of support sleeves is adjusted, the support base and chuck are reset, and the connection between the chuck and the air shaft is restored, so that the support base and chuck can provide support for the air shaft and the support sleeves.

[0016] The use of two telescopic rods in the cutting mechanism facilitates the adjustment of the distance between the second bracket and its lower components and the support sleeve, so as to adjust the depth of the cutter extending into the gap between the two support sleeves. The combination of the scale plate and the alignment arrow makes it easy for the user to determine the position of the cutter. The use of the mounting shaft and nut makes it easy for the user to disassemble and assemble the cutter holder, avoiding damage to the uncut parts of the plastic film caused by the excess cutter holder and cutter, and reducing the loss of plastic film.

[0017] 3. The combination of the first insert rod, the second insert rod, and the limiting plate can resist the rotation of the lead screw after the lead screw stops rotating by the friction between the first insert rod and the second insert rod and the first slot and the second slot respectively, thus preventing the lead screw from loosening during the cutting of plastic film and keeping the cutter stable during use. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a perspective view of the present invention;

[0020] Figure 2 This is a first perspective view of the base and support assembly in this utility model;

[0021] Figure 3 This is a second perspective view of the base and support assembly in this utility model;

[0022] Figure 4 This is a perspective view of the air shaft and support sleeve assembly in this utility model;

[0023] Figure 5 This is a perspective view of the combination of components such as the telescopic rod and the second support in this utility model;

[0024] Figure 6 This is a first perspective view of the exploded assembly of the sliding sleeve, blade holder, and cutting blade in this utility model;

[0025] Figure 7 This is a second perspective view of the exploded assembly of the sliding sleeve, blade holder, and cutting blade in this utility model;

[0026] Figure 8 This is a perspective view of the limiting plate in this utility model.

[0027] In the diagram: 1. Support mechanism; 2. Cutting mechanism; 3. Controller; 11. Base; 111. Mounting plate; 12. Caster wheel; 13. Support seat; 14. Chuck; 15. Air shaft; 16. Support sleeve; 21. First bracket; 22. Telescopic rod; 23. Second bracket; 231. Scale plate; 24. Slide rod; 241. Connecting plate; 25. Sliding sleeve; 251. Lead screw; 252. First slot; 253. Mounting shaft; 254. Nut; 255. Limiting block; 256. Second slot; 257. Alignment arrow; 26. Limiting plate; 261. First insertion rod; 262. Second insertion rod; 27. Tool holder; 271. Mounting hole; 28. Cutting blade; 281. Support shaft. Detailed Implementation

[0028] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0029] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The following will refer to the appendix... Figures 1-8 This application will be described in detail with reference to the embodiments.

[0030] An embodiment discloses a cutting device for processing plastic film, including a support mechanism 1 and a cutting mechanism 2. The cutting mechanism 2 is disposed above the support mechanism 1. The support mechanism 1 includes a base 11, and two mounting plates 111 are symmetrically arranged above the base 11. Support seats 13 are detachably connected to the sides of the two mounting plates 111 that are far apart from each other. Chucks 14 are rotatably connected to the upper ends of the two support seats 13. An air shaft 15 is detachably connected between the two chucks 14. Multiple support sleeves 16 are disposed on the outer side of the air shaft 15. The cutting mechanism 2 includes a first... A bracket 21 is provided. Two telescopic rods 22 are symmetrically connected to the top of the first bracket 21. The telescopic ends of the two telescopic rods 22 are connected to a second bracket 23. Scale plates 231 are provided on both sides of the second bracket 23. Connecting plates 241 are connected to both ends of the lower part of the second bracket 23. A sliding rod 24 is detachably connected between the two connecting plates 241. Multiple sliding sleeves 25 are provided on the outer side of the sliding rod 24. A lead screw 251 is threaded to one side of each sliding sleeve 25. A blade holder 27 is provided below the sliding sleeve 25. A cutting blade 28 is provided on the inner side of the blade holder 27.

[0031] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, two universal wheels 12 are symmetrically connected to both ends of the lower part of the base 11 to facilitate the adjustment of the position of the device. The support base 13 is detachably connected to the mounting plate 111, which facilitates the disassembly and assembly of the support base 13 during the process of adjusting the number of support sleeves 16 on the outside of the air shaft 15, so that the chuck 14 at the upper end of the support base 13 can be separated from the air shaft 15. The first bracket 21 is detachably connected to the base 11 to facilitate the installation and maintenance of the first bracket 21 and the cutting mechanism 2.

[0032] like Figure 1 , Figure 5 , Figure 6 and Figure 7 As shown, the sliding sleeve 25 is slidably connected to the sliding rod 24. A limiting block 255 is connected to the upper side of the sliding sleeve 25 near the lead screw 251. An aligning arrow 257 is connected to the upper side of the limiting block 255 to facilitate the user in determining the position of the sliding sleeve 25 and the cutter 28 below it.

[0033] like Figure 1 , Figure 6 , Figure 7 and Figure 8As shown, the limiting block 255 and the lead screw 251 are respectively provided with a second slot 256 and a first slot 252 at one end. The second slot 256 and the first slot 252 are respectively provided with a second insert rod 262 and a first insert rod 261, and are respectively slidably engaged with the second insert rod 262 and the first insert rod 261. The ends of the first insert rod 261 and the second insert rod 262 away from the lead screw 251 are connected to the limiting plate 26. After the lead screw 251 stops rotating, the friction between the first insert rod 261 and the second insert rod 262 and the first slot 252 and the second slot 256 respectively will resist the rotation of the lead screw 251, preventing the lead screw 251 from loosening during the plastic film cutting process, thereby keeping the cutter 28 stable during use.

[0034] like Figure 1 , Figure 6 and Figure 7 As shown, two mounting shafts 253 are symmetrically connected to the lower sides of the sliding sleeve 25, and two mounting holes 271 are symmetrically provided on the upper sides of the tool holder 27. The mounting shafts 253 pass through the interior of the mounting holes 271, and nuts 254 are threaded to the outer side of the mounting shafts 253 to facilitate the disassembly and assembly of the tool holder 27.

[0035] like Figure 1 , Figure 6 and Figure 7 As shown, a support shaft 281 is provided through the middle of the cutter 28. The support shaft 281 is detachably connected to the cutter holder 27, which facilitates the installation and maintenance of the cutter 28.

[0036] like Figure 1 As shown, a controller 3 is provided on one side of the first bracket 21 to facilitate the extension and retraction of the two telescopic rods 22 in the device.

[0037] Before use, the brake wheel of the plurality of casters 12 in the plastic film processing cutting device disclosed in this embodiment is released, and the device is adjusted to the inside of the original plastic film unwinding device and winding device, so that the extension line of the midpoint of the end of the plastic film coincides with the axis of symmetry of the device and is aligned with the center scale of the scale plate 231, so that the winding device can provide power for the movement of the plastic film during the plastic film cutting process.

[0038] Remove one support base 13 from one side of the mounting plate 111 to separate the chuck 14 from one end of the air shaft 15, releasing the seal on the air shaft 15. Adjust the number of support sleeves 16 on the outside of the same air shaft 15 according to the cutting requirements, so that the support sleeves 16 can provide support for the plastic film while preventing wrinkles from forming on the outside of multiple support sleeves 16. Reconnect the chuck 14 and the air shaft 15, reset the support base 13, and restore the connection between the support base 13 and the mounting plate 111. Next, based on the cutting requirements, such as the width of the plastic film and the number of strips after slitting, determine the number of cutters 28 and cutter holders 27, ensuring that the number of cutters 28 is one less than the number of plastic film strips after slitting. For example, if two plastic films are formed after slitting, one cutter 28 is needed; if three plastic films are formed after slitting, two cutters 28 are needed, and so on. After determining the number of cutters 28, install the cutter holder 27 with the cutters 28 below the corresponding sliding sleeve 25. After passing the mounting shaft 253 through the mounting hole 271, install the mounting shaft 25... Tighten nut 254 on the outside of 3 to fix the blade holder 27. Add other blade holders 27 and cutters 28 in the same way. After installation, pull the limiting plate 26 on one side of the sliding sleeve 25 to pull the first insert 261 and the second insert 262 out of the first slot 252 and the second slot 256 respectively, releasing the fixation on the lead screw 251. Rotate the lead screw 251 to separate the end of the lead screw 251 from the sliding rod 24. Adjust the sliding sleeve according to the width of the plastic film and refer to the scale on the scale plate 231. Position the screw 251 and cutter 28 so that when the arrow 257 points to the desired scale, rotate the screw 251 in the opposite direction. This causes the end of the screw 251 to press against the slide bar 24, inserting the first insert 261 and the second insert 262 back into the first slot 252 and the second slot 256, respectively. The friction between the first insert 261 and the second insert 262 and the first slot 252 and the second slot 256, respectively, restricts the position of the screw 251, preventing it from rotating during the cutting of the plastic film by the cutter 28.

[0039] After the position of the cutter 28 is adjusted, the position of the support sleeve 16 is adjusted according to the position of the cutter 28, so that the distance between the two support sleeves 16 directly below the cutter 28 is greater than the thickness of the cutter 28. The air shaft 15 is activated, so that the convex key of the air shaft 15 squeezes the support sleeve 16 from the inside of the support sleeve 16, fixing the support sleeve 16 and keeping it stable during use. After the adjustment is completed, the plastic film can be pulled over the support sleeve 16. The controller 3 is used to simultaneously control the extension of the two telescopic rods 22 to extend the cutter 28 into the gap between the two adjacent support sleeves 16 to a certain depth, ensuring that the cutter 28 can cut through the plastic film. The cut plastic film is pulled, and the end of the cut plastic film is connected to the original winding device. The winding device is activated, so that the winding device pulls the plastic film, so that the plastic film continuously contacts the cutter 28 for cutting.

[0040] The components disclosed in this utility model for a cutting device for processing plastic film, including controller 3, base 11, mounting plate 111, caster wheel 12, support seat 13, chuck 14, air shaft 15, support sleeve 16, first bracket 21, telescopic rod 22, second bracket 23, scale plate 231, slide rod 24, connecting plate 241, lead screw 251, mounting shaft 253, nut 254, alignment arrow 257, limiting plate 26, first insertion rod 261, second insertion rod 262, knife holder 27, cutter 28, and support shaft 281, are all general standard parts or parts known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0041] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cutting device for processing plastic film, comprising a support mechanism and a cutting mechanism, characterized in that, A cutting mechanism is provided above the support mechanism. The support mechanism includes a base, and two mounting plates are symmetrically arranged above the base. Support seats are detachably connected to the opposite sides of the two mounting plates. Chucks are rotatably connected to the upper ends of the two support seats. An air shaft is detachably connected between the two chucks. Multiple support sleeves are provided on the outer side of the air shaft. The cutting mechanism includes a first bracket. Two telescopic rods are symmetrically connected to the top of the first bracket. A second bracket is connected to the telescopic ends of the two telescopic rods. Scale plates are provided on both sides of the second bracket. Connecting plates are connected to both ends of the lower part of the second bracket. A sliding rod is detachably connected between the two connecting plates. Multiple sliding sleeves are provided on the outer side of the sliding rod. A lead screw is threaded to one side of each sliding sleeve. A blade holder is provided below the sliding sleeve. A cutting blade is provided on the inner side of the blade holder.

2. The cutting device for processing plastic film according to claim 1, characterized in that, Two omnidirectional wheels are symmetrically connected to both ends of the lower part of the base. The support base is detachably connected to the mounting plate, and the first bracket is detachably connected to the base.

3. The cutting device for processing plastic film according to claim 1, characterized in that, The sliding sleeve is slidably connected to the sliding rod, and a limiting block is connected to the upper side of the sliding sleeve near the lead screw. An aligning arrow is connected to the upper side of the limiting block.

4. The cutting device for processing plastic film according to claim 3, characterized in that, The limiting block and the lead screw are respectively provided with a second slot and a first slot. The second slot and the first slot are respectively provided with a second insert rod and a first insert rod and are respectively slidably engaged with the second insert rod and the first insert rod. The ends of the first insert rod and the second insert rod away from the lead screw are connected to a limiting plate.

5. A cutting device for processing plastic film according to claim 1, characterized in that, The lower sides of the sliding sleeve are symmetrically connected to two mounting shafts, and the upper sides of the tool holder are symmetrically provided with two mounting holes. The mounting shafts pass through the interior of the mounting holes, and nuts are threaded onto the outer side of the mounting shafts.

6. The cutting device for processing plastic film according to claim 1, characterized in that, A support shaft is provided through the middle of the cutter, and the support shaft is detachably connected to the cutter holder.

7. A cutting device for processing plastic film according to claim 1, characterized in that, A controller is provided on one side of the first bracket.

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