Cast film slitting mechanism

Abstract

The utility model relates to a cast film slitting mechanism, and relates to the technical field of cast film slitting machines, the cast film slitting mechanism comprises a rack and an uncoiling roller arranged on the rack, the rack is further provided with a cutting blade and a slitting blade, the rack is further provided with a slitting roller, and the slitting roller is provided with a cutting roller and a slitting roller. The slitting roller comprises a rotating rod rotationally arranged on the rack, a winding roller detachably arranged on the rotating rod and an installation assembly used for enabling the winding roller to be stably installed on the rotating rod. The rotating rods are divided into multiple sections, the multiple winding rollers are arranged, and each winding roller is arranged between the rotating rods at the two adjacent ends. The cast film slitting device has the beneficial effects that cast films with different size requirements and different length requirements can be conveniently slit, and the slitting efficiency of the cast films is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of a cast film slitting machine, in particular to a cast film slitting mechanism. BACKGROUND

[0002] At present, a cast film is a kind of flat extruded film produced through melt casting and quenching, and has single-layer casting and multi-layer co-extrusion casting two modes. Compared with blown film, the cast film has the characteristics of high production speed, high yield, excellent transparency, glossiness and thickness uniformity, and the like, and has excellent heat sealing performance and excellent transparency. The cast film is one of main packaging composite substrates, and is used for producing high-temperature cooking film, vacuum aluminum-plated film and the like, and the market is extremely promising.

[0003] A patent file with the publication number CN220807722U discloses a cast film slitting mechanism, which comprises a machine body, a support arranged on the machine body, a gas cylinder arranged on the support, a telescopic shaft of the gas cylinder slidingly installed at the top end of the support, a cross bar arranged on the telescopic shaft of the gas cylinder, a plurality of sliding blocks slidingly installed on the cross bar, a bolt internally threadedly connected to one side of the sliding block, the end of the bolt in contact with the cross bar, a T-shaped block slidingly installed at the bottom end of the sliding block, a cutter arranged at the bottom end of the T-shaped block, a pressing rod slidingly installed at both sides of the sliding block, an L-shaped insertion rod arranged at the end of the pressing rod in the sliding block, a plurality of first springs arranged at one side of the L-shaped insertion rod and installed in the sliding block. In the utility model, the cutter is installed and dismounted on the sliding block through the cooperation of the T-shaped block, the pressing rod, the L-shaped insertion rod and the first spring.

[0004] In the related art, in the process of actually cutting the cast film, different sizes of the cast film need to be cut, and the diameters of the cast film of different sizes to be wound are also inconsistent. In the above mechanism, all sizes of the cast film after being cut are wound on the same winding roller, that is, all sizes are wound on the same diameter, that is, the same length. If the cast film of different lengths is needed, the cast film after being cut needs to be unwound and cut again, which is troublesome. UTILITY MODEL CONTENTS

[0005] In order to facilitate the slitting of the cast film with different size requirements and different length requirements and improve the slitting efficiency of the cast film, the application provides a cast film slitting mechanism.

[0006] The cast film slitting mechanism provided by the application adopts the following technical scheme:

[0007] The application discloses a cast film slitting mechanism which comprises a rack and an unwinding roller arranged on the rack, a cutting blade and a slitting blade arranged on the rack, and a slitting roller arranged on the rack, wherein the slitting roller comprises a rotating rod rotatably arranged on the rack, a winding roller detachably arranged on the rotating rod, and a mounting assembly for stably mounting the winding roller on the rotating rod; the rotating rod is divided into multiple sections, and multiple winding rollers are arranged between the adjacent two ends of the rotating rod.

[0008] By adopting the technical scheme, when the cast film is slitted, the cast film is unwound by the unwinding roller, then the unwound cast film is slitted by the slitting blade, so that cast films with different widths are formed, and the cast films with different widths after slitting are wound by the winding roller.

[0009] When the lengths of the cast films with different widths to be wound are different, the cast film reaching the length standard is cut by the cutting blade, then the winding roller is separated from the rotating rod, so that the winding roller can be detached and taken out, a new winding roller is mounted on the rotating rod for new winding work, and when the winding roller is detached, the normal winding state of the remaining winding rollers is not affected, so that the cast film can be cut to have individualized length, the subsequent work of unwinding and cutting is reduced, and the slitting efficiency is improved.

[0010] Optionally, the rotating rod is hollow, the winding roller is also hollow, the mounting assembly comprises a mounting rod elastically and slidably arranged in the rotating rod, the winding roller is provided with mounting grooves at both ends along the length direction of the rotating rod, the mounting rod is movably inserted into the mounting grooves, the mounting rod is adapted to the mounting grooves in a clamping mode, and the winding roller is further provided with a limiting piece for keeping the relative position of the mounting rod and the mounting grooves constant.

[0011] By adopting the technical scheme, when the winding roller is mounted, the technician first adjusts the mounting rod to make the mounting rod sink into the rotating rod, then the technician slides the winding roller between the two rotating rods, loosens the mounting rod, and the mounting rod is automatically inserted into the mounting groove under the action of the elastic restoring force, so that the stable connection between the rotating rod and the winding roller is realized.

[0012] Optionally, the mounting rod is polygonal, the mounting groove is also polygonal, the mounting rod is in close contact with the inner wall of the mounting groove, the end side of the mounting rod close to the adjacent rotating rod is inclined, and the inclined side of the mounting rod is in close contact with the winding roller.

[0013] By adopting the above technical scheme, after the mounting rod is inserted into the mounting groove to stably install the winding roller, when the rotating rod is driven to rotate under the action of the power element, the winding roller is driven to rotate under the clamping action of the mounting rod and the mounting groove, so that the transmission rotation of the rotating rod and the winding roller is realized, and when the winding roller is installed, the end side of the winding roller is directly pressed against the inclined side of the mounting rod, so that the mounting rod slides towards the rotating rod until the winding roller moves to the position coaxial with the rotating rod, at this time the mounting rod extends under the action of the elastic restoring force, inserts into the mounting groove and is attached to the inner peripheral wall of the mounting groove, so that the installation operation of the winding roller is realized.

[0014] Optionally, the limiting piece includes a limiting block slidingly arranged on the winding roller, a sliding direction of the limiting block is perpendicular to a sliding direction of the mounting rod, a limiting slot is formed on the mounting rod, the limiting block is movably inserted into the limiting slot, and the rotating rod is further provided with a synchronizing piece for keeping the rotating rod and the winding roller stably and synchronously rotating.

[0015] By adopting the above technical scheme, after the mounting rod is inserted into the mounting groove, in order to make the transmission of the rotating rod and the winding roller stable, the mounting rod is not easy to be separated from the mounting groove, therefore the limiting block is inserted into the limiting slot of the mounting rod, and under the abutting of the limiting block, the mounting rod is not easy to be separated from the rotating shaft of the winding roller, so that the stable installation of the rotating rod and the winding roller is realized, and the synchronizing piece further improves the stable and synchronous rotation of the winding roller and the rotating rod.

[0016] Optionally, the synchronizing piece includes a synchronizing sleeve slidingly sleeved on the rotating rod, an end of the limiting block away from the limiting slot protrudes from the winding roller, and a synchronizing slot is formed on the protruding end side of the limiting block, the synchronizing sleeve is movably sleeved on the winding roller, and the synchronizing sleeve is movably inserted into the synchronizing slot.

[0017] By adopting the above technical scheme, one end of the synchronizing sleeve is sleeved on the winding roller, and the other end is sleeved on the rotating rod, when the synchronizing sleeve is sleeved on the winding roller, the synchronizing sleeve is inserted into the synchronizing slot, so that the limiting block is not easy to move away from the limiting slot, the stable limiting of the limiting block on the mounting rod is realized, and the stable connection of the rotating rod and the winding roller is further realized.

[0018] Optionally, a positioning slot is formed on an outer peripheral wall of the rotating rod, a positioning block is arranged on an inner peripheral wall of the synchronizing sleeve, the positioning block is clamped and matched with the positioning slot, a plurality of positioning slots are formed, and the plurality of positioning slots are arranged at intervals along a circumferential direction of the rotating rod, and a plurality of positioning blocks are also arranged, and the plurality of positioning blocks are arranged at intervals along a circumferential direction of the inner peripheral wall of the synchronizing sleeve.

[0019] By adopting the technical scheme, the positioning groove is arranged on the outer circumferential wall of the rotating rod, the positioning block is slidably matched with the positioning groove during the sliding of the synchronous sleeve, the sliding direction of the synchronous sleeve is limited, the synchronous sleeve is not prone to rotating relative to the rotating rod, and thus stable transmission of the rotating rod and the winding roller is achieved.

[0020] Optionally, a pressing sleeve is threadedly sleeved on the rotating rod, and the pressing sleeve is movably attached to the end side of the synchronous sleeve away from the winding roller.

[0021] By adopting the technical scheme, the pressing sleeve is threadedly sleeved, the technician rotates the pressing sleeve after sliding the synchronous sleeve into the synchronous groove, the synchronous sleeve is pressed by the pressing sleeve, and thus the synchronous sleeve is not prone to sliding away from the winding roller.

[0022] Optionally, the rack is further provided with a plurality of pressing rollers corresponding to the plurality of winding rollers one-to-one, and the plurality of pressing rollers are elastically and slidably arranged on the rack.

[0023] By adopting the technical scheme, the plurality of pressing rollers are arranged, the winding roller wound to different lengths is disassembled, and a new winding roller is reassembled for winding, the rotational speeds of the different winding rollers are consistent, and stable winding of each winding roller is achieved.

[0024] In summary, the present application has at least one of the following beneficial technical effects:

[0025] 1. The winding roller dismountably arranged on the rotating rod, the mounting rod slidably arranged on the rotating rod, and the limiting piece limiting the mounting rod facilitate the slitting of the cast film into different lengths and different diameters, and the slitting of the cast film into different lengths is separately stored, thereby reducing the inconvenience of winding caused by synchronous slitting.

[0026] 2. The limiting block slidably arranged on the winding roller, the limiting groove arranged on the mounting rod, and the polygonal shape of the mounting rod, the mounting rod is stably arranged in the winding roller by inserting the limiting block into the limiting groove when the rotating rod is rotationally driven, and the winding roller is stably rotationally driven when the rotating rod is rotationally driven.

[0027] 3. By setting the synchronous sleeve on the rotating rod, the synchronous slot is opened on the limiting block, after the technical personnel install the winding roller, at this time the technical personnel slide the synchronous sleeve, make the synchronous sleeve clasp in the synchronous slot, so that the limiting block is not easy to produce the sliding in the direction of away / close to the installation rod, so as to realize the stable limiting installation of the limiting block to the rotating rod and the winding roller, realize the stable transmission of the winding roller and the rotating rod. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is the overall structure schematic diagram of the embodiment of the application;

[0029] Figure 2 is the connecting structure schematic diagram of the slitting roller;

[0030] Figure 3 is Figure 2 the local enlarged schematic diagram of A part in

[0031] Fig. 1, rack; 11, unwinding roller; 12, cutting blade; 13, slitting blade; 14, abutting roller; 15, abutting spring; 2, slitting roller; 21, rotating rod; 22, winding roller; 3, installation assembly; 31, installation rod; 32, installation spring; 33, installation slot; 34, limiting piece; 341, limiting block; 342, limiting slot; 35, synchronous piece; 351, synchronous sleeve; 352, synchronous slot; 36, positioning block; 361, positioning slot; 37, abutting sleeve. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings Figures 1-3 The application is further described in detail.

[0033] The embodiment of the application discloses a kind of cast film slitting mechanism. Refer to Figure 1 A kind of cast film slitting mechanism includes horizontally arranged rack 1, rack 1 is sequentially rotated with unwinding roller 11, slitting blade 13, cutting blade 12 and slitting roller 2 arranged on rack 1 along length direction, the rotation axis of unwinding roller 11 and slitting roller 2 is parallel and is horizontally arranged.

[0034] Refer to Figure 1 And Figure 2 Slitting roller 2 includes rotating rod 21 arranged on rack 1 and winding roller 22 detachably arranged on rotating rod 21. Rack 1 is provided with rotating motor, the output end of rotating motor is fixed with rotating rod 21, rotating rod 21 is sequentially divided into multiple sections along the width direction of rack 1, winding roller 22 is also provided with multiple, the number of winding roller 22 is less than the section number of rotating rod 21 by one, and one winding roller 22 is arranged between adjacent two sections of rotating rod 21, and rotating rod 21 is further provided with installation assembly 3 for stably installing winding roller 22 on rotating rod 21.

[0035] Referring to Figure 2 and Figure 3 The rotating rod 21 is hollow, and the mounting rod 31 is slidably arranged in the rotating rod 21. The sliding direction of the mounting rod 31 is consistent with the length direction of the rotating rod 21. One end of the mounting rod 31 in the rotating rod 21 is provided with a limiting structure for limiting the rotation of the mounting rod 31 relative to the rotating rod 21. In this application, the limiting structure is a rectangular groove formed in the rotating rod 21 and a rectangular outer peripheral wall of the mounting rod 31.

[0036] Meanwhile, the end side of the winding roller 22 is provided with a mounting groove 33, and one end of the mounting rod 31 protrudes from the end side of the rotating rod 21 and is arranged in the mounting groove 33. The protruding end side of the mounting rod 31 is polygonal, and the mounting groove 33 is also polygonal and matched with the mounting rod 31. In this application, the mounting rod 31 is rectangular, and the mounting rod 31 and the mounting groove 33 are matched and connected. When the rotating motor drives the rotating rod 21 to rotate, the cutting roller 2 is driven to rotate. In order to facilitate the installation of the winding roller 22, the protruding end side of the mounting rod 31 is inclined, and the inclined end side of the mounting rod 31 is in close contact with the winding roller 22.

[0037] Since the mounting rod 31 is slidably arranged in the rotating rod 21, in order to make the installation of the winding roller 22 stable, the end of the mounting rod 31 away from the winding roller 22 is fixedly connected with the mounting spring 32, and the mounting spring 32 is fixedly connected with the inner bottom wall of the rectangular groove. In order to further improve the stability of the installation of the winding roller 22, the winding roller 22 is also provided with a limiting piece 34. The end of the mounting rod 31 close to the winding roller 22 is provided with a limiting groove 342, and the winding roller 22 is slidably provided with a limiting block 341. The sliding direction of the limiting block 341 is perpendicular to the rotating axis of the winding roller 22. One end of the limiting block 341 protrudes through the rotating shaft side wall of the winding roller 22 and is inserted into the limiting groove 342. The limiting block 341 is also elastically arranged on the winding roller 22, and the elastic restoring force of the limiting block 341 drives the limiting block 341 to always move towards the roller shaft direction of the winding roller 22.

[0038] Meanwhile, in order to further realize the stable synchronous rotation of the winding roller 22 and the rotating rod 21, the rotating rod 21 is further provided with a synchronous part 35, the synchronous part 35 comprises a synchronous sleeve 351 which is slidably arranged on the rotating rod 21, and a limiting block 341 which is movably protruded from the winding roller 22 at one end away from a limiting groove 342, and the end side of the limiting block 341 which is protruded is provided with a synchronous groove 352, the synchronous sleeve 351 is movably sleeved on the winding roller 22, and the synchronous sleeve 351 is movably inserted into the synchronous groove 352, one end of the synchronous sleeve 351 is sleeved on the winding roller 22 and the other end is sleeved on the rotating rod 21, when the synchronous sleeve 351 is sleeved on the winding roller 22, the limiting block 341 is not easy to move away from the limiting groove 342 at this time, the stable limiting of the limiting block 341 to the mounting rod 31 is realized, and the stable connection of the rotating rod 21 and the winding roller 22 is further realized.

[0039] Since the rotation of the winding roller 22 is limited only by the mounting rod 31 and the mounting groove 33 at this time, long-term wear and tear is easy to occur, therefore, the outer peripheral wall of the rotating rod 21 is provided with a positioning groove 361, the inner peripheral wall of the synchronous sleeve 351 is provided with a positioning block 36, the positioning block 36 is adapted to be clamped with the positioning groove 361, the positioning groove 361 is provided with a plurality of groups, and the plurality of groups of the positioning groove 361 are spaced apart along the circumferential direction of the rotating rod 21, the positioning block 36 is also provided with a plurality of groups, and the plurality of groups of the positioning block 36 are spaced apart along the circumferential direction of the inner peripheral wall of the synchronous sleeve 351, the rotating rod 21 is further threadedly sleeved with a pressing sleeve 37, and the pressing sleeve 37 is movably attached to the end side of the synchronous sleeve 351 away from the winding roller 22.

[0040] After the technician slides the synchronous sleeve 351 into the synchronous groove 352, the technician rotates the pressing sleeve 37 at this time, so that the pressing sleeve 37 presses the synchronous sleeve 351, so that the synchronous sleeve 351 is not easy to slide away from the winding roller 22.

[0041] The rack 1 is further provided with a plurality of groups of pressing rollers 14 corresponding to a plurality of groups of winding rollers 22, the rotating shafts of the plurality of groups of pressing rollers 14 are all provided with pressing springs 15, and the roller periphery of the pressing roller 14 is always attached to and pressed against the surface of the casting film.

[0042] Since the winding roller 22 after winding to different lengths is disassembled, and after disassembly, a new winding roller 22 is reinstalled for winding, at this time, the rotating speeds of different winding rollers 22 are consistent, in order to realize that each winding roller 22 can realize stable winding.

[0043] The above are the preferred embodiments of the present application, which do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape, principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A cast film slitting mechanism, comprising a frame (1) and an unwinding roller (11) arranged on the frame (1), wherein the frame (1) is further provided with a cutting blade (12) and a slitting blade (13), characterized in that: The frame (1) is further provided with a slitting roller (2), and the slitting roller (2) comprises a rotating rod (21) rotatably arranged on the frame (1), a winding roller (22) detachably arranged on the rotating rod (21), and a mounting assembly (3) for stably mounting the winding roller (22) on the rotating rod (21); The rotating rod (21) is divided into multiple sections, and a plurality of winding rollers (22) are provided, and each winding roller (22) is provided between the rotating rods (21) at two adjacent ends.

2. A cast film slitting mechanism according to claim 1, characterized in that: The rotating rod (21) is hollow, and the winding roller (22) is also hollow. The mounting assembly (3) includes a mounting rod (31) elastically slidably arranged in the rotating rod (21). The winding roller (22) is provided with mounting grooves (33) at both ends along the length direction of the rotating rod (21). The mounting rod (31) is movably inserted into the mounting groove (33) and is adapted to be snap-fitted with the mounting groove (33). The winding roller (22) is also provided with a limiting member (34) for maintaining a constant relative position between the mounting rod (31) and the mounting groove (33).

3. A cast film slitting mechanism according to claim 2, characterized in that: The mounting rod (31) is polygonal in shape, and the mounting groove (33) is also polygonal in shape, and the mounting rod (31) is in contact with the inner wall of the mounting groove (33), and the end side of the mounting rod (31) close to the adjacent rotating rod (21) is inclined, and the inclined side of the mounting rod (31) is movably in contact with the winding roller (22).

4. A cast film slitting mechanism according to claim 3, characterized in that: The limiting member (34) includes a limiting block (341) slidably arranged on the winding roller (22), the sliding direction of the limiting block (341) is perpendicular to the sliding direction of the mounting rod (31), a limiting groove (342) is provided on the mounting rod (31), the limiting block (341) is movably inserted into the limiting groove (342), and the rotating rod (21) is further provided with a synchronizing member (35) for maintaining stable synchronous rotation of the rotating rod (21) and the winding roller (22).

5. A cast film slitting mechanism according to claim 4, characterized in that: The synchronous member (35) includes a synchronous sleeve (351) slidably mounted on the rotating rod (21); one end of the limit block (341) away from the limit groove (342) is movably protruded from the winding roller (22); and a synchronous groove (352) is provided on the protruding end side of the limit block (341); the synchronous sleeve (351) is movably mounted on the winding roller (22), and the synchronous sleeve (351) is movably inserted into the synchronous groove (352).

6. A cast film slitting mechanism according to claim 5, characterized in that: A positioning groove (361) is provided on the outer peripheral wall of the rotating rod (21), and a positioning block (36) is provided on the inner peripheral wall of the synchronous sleeve (351). The positioning block (36) is engaged and adapted with the positioning groove (361). A plurality of positioning grooves (361) are provided, and the plurality of positioning grooves (361) are arranged at intervals along the circumference direction of the rotating rod (21). A plurality of positioning blocks (36) are also provided, and the plurality of positioning blocks (36) are arranged at intervals along the circumference direction of the inner peripheral wall of the synchronous sleeve (351).

7. A cast film slitting mechanism according to claim 6, characterized in that: A tightening sleeve (37) is also threadedly provided on the rotating rod (21), and the tightening sleeve (37) is movably fitted with the end side of the synchronous sleeve (351) away from the winding roller (22).

8. The cast film slitting mechanism according to claim 7, characterized in that: The frame (1) is further provided with a plurality of pressing rollers (14) corresponding one-to-one to the plurality of winding rollers (22), and the plurality of pressing rollers (14) are elastically slidably arranged on the frame (1).

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