PVC film slitting device

Abstract

The utility model provides a PVC film slitting device which comprises a slitting body, a mounting box, a fixing rod, a rotating roller, a mounting groove, a cutter and a limiting mechanism. According to the utility model, the rotating roller is provided with at least two mounting grooves, and each mounting groove is uniformly provided with a plurality of cutting knives, so that each mounting groove can realize the slitting of one film size; when cutting knives with different intervals need to be replaced, a pull ring of a pull ring indexing pin is pulled out firstly, a bullet of the pull ring indexing pin leaves a limiting hole, then a rotating roller can be rotated, when the cutting knives with the specified intervals are adjusted (vertically downward), the pull ring is loosened, the bullet pops up and is inserted into the limiting hole, and therefore the cutting knives with the different intervals are replaced. Then, the locking bolt is unscrewed, the rotating roller is moved to a proper position, and finally, the rotating roller is tightened; therefore, the situation that an original slitting device needs to adjust the distance between every two cutters is eliminated, operation is convenient and fast, and meanwhile the adjusting time is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to PVC film technical field, concretely relates to a PVC film slitting device. BACKGROUND

[0002] PVC is mainly composed of polyvinyl chloride, which is slightly yellow and translucent, has luster, and the transparency is better than polyethylene and polypropylene, and is worse than polystyrene, and is divided into soft and hard polyvinyl chloride according to the amount of auxiliary agent, the soft product is soft and tough, and the hand feeling is sticky, the hardness of the hard product is higher than that of low-density polyethylene, and is lower than that of polypropylene, and whitening phenomenon appears at the bending place, PVC film is a kind of film, which is formed by secondary blowing after mixing ethylene method PVC resin with more than ten kinds of auxiliary materials, and the PVC film needs to be slitted during production, processing and selling.

[0003] And the existing PVC film slitting device generally only has a row of cutting knives, so when different sizes of PVC film rolls need to be cut, the spacing between each cutting knife needs to be adjusted, which is time-consuming and complicated to operate. UTILITY MODEL CONTENT

[0004] The utility model aims at designing a PVC film slitting device to solve the problems in the background art, and provides the following technical scheme to achieve the above-mentioned purpose: a slitting main body for conveying and winding the slit film, a fixed rod is fixedly connected between two mounting boxes of the slitting main body, a rotating roller is rotatably connected to the fixed rod, not less than two mounting grooves are arranged on the rotating roller, a plurality of cutting knives are arrayed on each mounting groove, and a limiting mechanism for controlling the rotation or fixation of the rotating roller is arranged at the end of the rotating roller.

[0005] Further, the limiting mechanism comprises a fixed sleeve in gap cooperation with the fixed rod and rotatably connected with the end of the rotating roller, a pull ring indexing pin is fixedly connected to the top of the fixed sleeve, the head of the pull ring indexing pin is inserted into a limiting hole in the rotating roller, and the axis of the limiting hole is the same as and aligned with the number of mounting grooves.

[0006] Further, a limiting groove is arranged on the fixed rod, one end of the fixed sleeve away from the rotating roller is fixedly connected with a moving sleeve in gap cooperation with the fixed rod, a limiting boss in cooperation with the limiting groove is arranged in the moving sleeve, one end of the moving sleeve is in gap cooperation with the fixed rod, a locking bolt is threadedly connected to the moving sleeve, and the end of the locking bolt is tightly pressed against the fixed rod.

[0007] Further, the locking bolt is a butterfly bolt.

[0008] Further, the end of the rotating roller is matched with the fixed sleeve gap, and a plurality of limiting holes are distributed on the rotating roller inserted into the fixed sleeve.

[0009] Further, the fixed sleeve is a magnetic metal, and a suction base is fixedly connected to the end of the rotating roller, a permanent magnet is embedded on an end surface of the suction base close to the fixed sleeve, and the suction base is tightly attached to the end surface of the fixed sleeve under the action of the permanent magnet.

[0010] Further, the rotating roller is provided with a mounting shaft, the mounting groove is arranged in the mounting shaft, and the mounting groove penetrates the mounting shaft.

[0011] Further, a rotating disc is fixedly connected to the rotating roller between the mounting shaft and the suction base.

[0012] Further, the mounting groove is in the shape of a Chinese character "N", the cutting knife comprises a blade, a threaded column fixedly connected to the blade, and a boss fixedly connected to the end of the threaded column and matched with the mounting groove, a locking nut is threadedly connected to the threaded column, and the end of the locking nut is tightly pressed against the outer surface of the rotating roller.

[0013] Further, a plurality of scale bars are distributed on the outer surface of the rotating roller.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows: the rotating roller is provided with no less than two mounting grooves, and each mounting groove is divided into a plurality of cutting knives, so that each mounting groove can realize the slitting of a film size; therefore, the utility model only needs to rotate the rotating roller, and the adjustment of different distances of the cutting knives can be realized; thus, the condition that the existing slitting device needs to adjust each cutting knife to adjust the distance between the cutting knives is eliminated, the operation is convenient, and the adjustment time is saved. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0016] Fig. 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Fig. 2 It is an enlarged schematic diagram of the end of the fixed rod;

[0018] Fig. 3 It is a schematic diagram of the local section of the utility model.

[0019] Wherein: 1, installation box; 2, rotating roller; 3, slitting main body; 4, film roll; 5, limiting mechanism; 6, fixed rod; 7, moving sleeve; 8, fixed sleeve; 9, pull ring index pin; 10, suction table; 11, rotating disc; 12, scale bar; 13, blade; 14, threaded column; 15, locking nut; 16, mounting shaft; 17, mounting groove; 18, permanent magnet; 19, locking bolt; 20, limiting groove; 21, limiting hole; 22, limiting boss. DETAILED DESCRIPTION

[0020] In order to further illustrate the technical means and effects adopted by the utility model to achieve the predetermined utility model purposes, the specific embodiments, structures, features and effects according to the utility model will be described in detail as follows in combination with the drawings and preferred embodiments.

[0021] Embodiment: please refer to Figs. 1-3 A PVC film slitting device, comprising a slitting main body 3 for conveying and winding the slit film, a fixed rod 6 is fixedly connected between the two installation boxes 1 of the slitting main body 3, a rotating roller 2 is rotatably connected on the fixed rod 6, a plurality of cutting knives are arrayed on each mounting groove 17 provided on the rotating roller 2, a limiting mechanism 5 for controlling the rotation or fixation of the rotating roller 2 is provided at the end of the rotating roller 2, in this embodiment, six mounting grooves 17 are provided, each mounting groove 17 is uniformly provided with a cutting knife of a customer's frequently required division size, including a cutting knife for six equal divisions, five equal divisions, four equal divisions, three equal divisions, and a cutting knife with different intervals for six equal divisions and four equal divisions, therefore, when a customer needs to specify a size, only needs to rotate the rotating roller 2 to align the cutting knife of the corresponding size with the film; thereby eliminating the need to adjust the interval between each cutting knife of the original slitting device, convenient to operate and saves adjustment time; wherein the limiting mechanism 5 comprises a fixed sleeve 8 rotatably connected with the end of the rotating roller 2 and in clearance fit with the fixed rod 6, a pull ring index pin 9 is fixedly connected to the top of the fixed sleeve 8, the head of the pull ring index pin 9 is inserted into a limiting hole 21 in the rotating roller 2, the axis of the limiting hole 21 is the same as and aligned with the number of mounting grooves 17, therefore, when it is needed to replace the cutting knife with different intervals, only needs to pull out the pull ring of the pull ring index pin 9 to make the head of the pull ring index pin 9 leave the limiting hole 21, then the rotating roller 2 can be rotated, when the cutting knife with the specified interval is adjusted (vertically downward), the pull ring is loosened, the head is ejected and inserted into the limiting hole 21, thereby realizing the replacement of the cutting knife with different intervals.

[0022] Due to the installation error, the position of the film roll 4 installed before cutting may not be in the center of the slitting device, and may be left or right, at this time, the film width direction is not aligned with the row of cutting knives (relative to the film, the cutting knives are right or left as a whole) at this time, in order to make the film cutting more ideal, the position of the film roll 4 needs to be adjusted to be centered, the latter adjusts the position of the cutting knife, and the existing cutting knife adjustment needs to be adjusted for each cutting knife, which is more troublesome to operate; therefore, in the present embodiment, the fixed rod 6 is provided with a limiting groove 20, the end of the fixed sleeve 8 away from the rotating roller 2 is fixedly connected with a moving sleeve 7 which is gap matched with the fixed rod 6, the inside of the moving sleeve 7 is provided with a limiting boss 22 which is matched with the limiting groove 20, one end of the moving sleeve 7 is provided with a gap matched with the fixed rod 6, the moving sleeve 7 is threadedly connected with a locking bolt 19, the end of the locking bolt 19 is tightly pressed against the fixed rod 6, the locking bolt 19 is a butterfly bolt, at this time, only the locking bolt 19 needs to be loosened, the position of the rotating roller 2 on the fixed rod 6 can be moved, thereby realizing convenient adjustment of the position of the row of cutting knives, and making the film cutting more ideal; the end of the rotating roller 2 is gap matched with the fixed sleeve 8, the rotating roller 2 inserted into the inside of the fixed sleeve 8 is circumferentially distributed with a plurality of limiting holes 21, the use of bearings is eliminated, and the structure of the rotating connection is simpler; the fixed sleeve 8 is a magnetic metal, the end of the rotating roller 2 is fixedly connected with a suction table 10, a permanent magnet 18 is embedded on the end face of the suction table 10 close to the fixed sleeve 8, the suction table 10 is tightly attached to the end face of the fixed sleeve 8 under the action of the permanent magnet 18, so that the rotating roller 2 can be tightly attached to the fixed sleeve 8 when rotating, preventing the rotating roller 2 from falling off and being inconvenient to insert the bullet into the limiting hole 21; the rotating roller 2 is provided with a mounting shaft 16, a mounting groove 17 is arranged in the inside of the mounting shaft 16, and the mounting groove 17 penetrates through the mounting shaft 16, the mounting groove 17 is in the shape of a Chinese character "K", the cutting knife includes a blade 13, a threaded column 14 fixedly connected with the blade 13, and a boss fixedly connected with the end of the threaded column 14 and matched with the mounting groove 17, a locking nut 15 is threadedly connected on the threaded column 14, the end of the locking nut 15 is tightly pressed against the outer surface of the rotating roller 2, facilitating disassembly and assembly of the cutting knife; the rotating disc 11 is fixedly connected to the rotating roller 2 between the mounting shaft 16 and the suction table 10, facilitating rotation of the rotating roller 2; a plurality of scale bars 12 are circumferentially distributed on the outer surface of the rotating roller 2, facilitating adjustment of the cutting knife.

[0023] Working principle: when different spacing cutting knives need to be replaced, the pull ring of the pull ring indexing pin 9 is pulled out first, the bullet of the pull ring indexing pin 9 is separated from the limiting hole 21, then the rotating roller 2 is rotated, when the cutting knife of the specified spacing is adjusted (vertically downward), the pull ring is loosened, the bullet is ejected and inserted into the limiting hole 21, thereby realizing replacement of cutting knives with different spacings; then the locking bolt 19 is loosened, the rotating roller 2 is moved to the appropriate position, and finally it is tightened; therefore, the original slitting device needs to adjust the spacing between each cutting knife, which is convenient to operate and saves adjustment time.

[0024] It is to be understood that where an element such as a layer, region or substrate is described as being "on" another element, it can be directly on the other element or intervening elements can also be present. Where an element such as a layer, region or substrate is described as being "connected" to another element, it can be directly connected to the other element or intervening elements can also be present. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0025] The above descriptions are only the preferred embodiments of the present application, and are not intended to limit the present application in any form. Although the present application has been disclosed as above with the preferred embodiments, it is not intended to limit the present application, and any person skilled in the art can make some changes or modifications to the above disclosed technical contents to make equivalent embodiments with equivalent changes, as long as they do not deviate from the technical solution of the present application. Any modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application still belong to the scope of the technical solution of the present application.

Claims

1. A PVC film slitting device comprising a slitting body (3) for conveying and winding the slit film, characterized in that: The two installation boxes (1) of the slitting main body (3) are fixedly connected with a fixing rod (6), a rotating roller (2) is rotatably connected to the fixing rod (6), a plurality of installation grooves (17) are arranged on the rotating roller (2), a plurality of cutting knives are arranged in the installation grooves (17), and a limiting mechanism (5) for controlling the rotation or fixation of the rotating roller (2) is arranged at the end of the rotating roller (2).

2. The PVC film slitting apparatus of claim 1, wherein: The limiting mechanism (5) comprises a fixing sleeve (8) which is in clearance fit with the fixing rod (6) and is rotatably connected to the end of the rotating roller (2), a pull ring indexing pin (9) is fixedly connected to the top of the fixing sleeve (8), the bullet of the pull ring indexing pin (9) is inserted into a limiting hole (21) in the rotating roller (2), and the axis of the limiting hole (21) is the same as and aligned with the number of the installation grooves (17).

3. The PVC film slitting apparatus of claim 2, wherein: A limiting groove (20) is arranged on the fixing rod (6), one end of the fixing sleeve (8) away from the rotating roller (2) is fixedly connected with a moving sleeve (7) which is in clearance fit with the fixing rod (6), the inside of the moving sleeve (7) is provided with a limiting boss (22) which is in fit with the limiting groove (20), one end of the moving sleeve (7) is in clearance fit with the fixing rod (6), a locking bolt (19) is threadedly connected to the moving sleeve (7), and the end of the locking bolt (19) is tightly pressed against the fixing rod (6).

4. The PVC film slitting apparatus of claim 3, wherein: The locking bolt (19) is a butterfly bolt.

5. The PVC film slitting apparatus of claim 2, wherein: The end of the rotating roller (2) is in clearance fit with the fixing sleeve (8), and a plurality of limiting holes (21) are circumferentially distributed on the rotating roller (2) inserted into the inside of the fixing sleeve (8).

6. The PVC film slitting apparatus of claim 5, wherein: The fixing sleeve (8) is a magnetic metal, the end of the rotating roller (2) is fixedly connected with a suction platform (10), a permanent magnet (18) is embedded on the end face of the suction platform (10) close to the fixing sleeve (8), and the suction platform (10) is tightly attached to the end face of the fixing sleeve (8) under the action of the permanent magnet (18).

7. The PVC film slitting apparatus of claim 6, wherein: An installation shaft (16) is arranged on the rotating roller (2), the installation grooves (17) are arranged in the installation shaft (16), and the installation grooves (17) penetrate through the installation shaft (16).

8. The PVC film slitting apparatus of claim 7, wherein: A rotating disc (11) is fixedly connected to the rotating roller (2) between the installation shaft (16) and the suction platform (10).

9. The PVC film slitting apparatus of claim 1, wherein: The installation grooves (17) are in the shape of a Chinese character "N", the cutting knives comprise a cutting edge (13), a threaded column (14) fixedly connected to the cutting edge (13), and a boss fixedly connected to the end of the threaded column (14) and in fit with the installation grooves (17), a locking nut (15) is threadedly connected to the threaded column (14), and the end of the locking nut (15) is tightly pressed against the outer surface of the rotating roller (2).

10. The PVC film slitting apparatus of claim 9, wherein: A plurality of scale bars (12) are circumferentially distributed on the outer surface of the rotating roller (2).

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