Polyester ultra-thin film production equipment and process

Abstract

The application discloses a polyester ultra-thin film production device and process, and belongs to automatic machinery. The device comprises a rack, a first feeding device and a second feeding device for placing a roll-shaped film to be slit, the second feeding device being located at the rear side of the first feeding device, a plurality of guide rollers for driving the film to be conveyed forward, a cutter roller provided with a plurality of cutters and used for slitting the film along the width direction, a cutter holder roller provided with a plurality of cutter holders, the cutter holder being provided with a first ring groove and a second ring groove, the cutter holder roller being arranged below the cutter roller, an adjusting roller, a first driving device for driving the cutter roller to move in the axial direction, and a second driving device for driving the cutter roller to overturn about the adjusting roller as the center axis. The polyester ultra-thin film production device and process provided by the application can meet the cutting precision and different cutting specifications.

Description

A polyester ultrathin film production equipment and process Technical Field

[0001] This application relates to the field of slitting machinery technology, and more specifically, to polyester ultrathin film production equipment and processes. Background Technology

[0002] The polyester ultrathin film referred to here is a composite film formed by melting and vaporizing aluminum under high vacuum conditions (above 10 mba) using resistance, high frequency, or electron beam heating, and then adhering it to the surface of a film substrate. A very thin layer of metallic aluminum or zinc-aluminum is then deposited onto the surface of the plastic film to create an aluminized film or zinc-aluminum film. After coating, the film needs to be slit, but existing slitting equipment has poor matching between the cutter and cutter holder, which cannot meet the requirements for cutting precision and different cutting specifications. Summary of the Invention

[0003] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0004] To address the technical problems mentioned in the background section above, some embodiments of this application provide polyester ultrathin film production equipment, including:

[0005] frame;

[0006] The first feeding device and the second feeding device are used to place the roll of film to be cut, and the second feeding device is located behind the first feeding device;

[0007] Multiple guide rollers are used to drive the film forward;

[0008] A cutting roller, which is equipped with multiple cutting blades, is used to cut the film along its width direction;

[0009] A cutter holder roller is provided with multiple cutter holders, each cutter holder having a first annular groove and a second annular groove, and the cutter holder roller is located below the cutter roller.

[0010] Adjusting roller;

[0011] The first driving device is used to drive the cutter roller to move in the axial direction;

[0012] The second drive unit is used to drive the cutter roller to rotate around the adjusting roller as the central axis;

[0013] The first gear is fixedly sleeved on the cutting roller;

[0014] The second gear is fixedly sleeved on the cutter holder roller, and the first gear and the second gear are connected by a synchronous belt drive.

[0015] The first roll device and the second roll device are used to wind the slit film, respectively, with the second roll device located below the first roll device.

[0016] The first driving device includes connecting frames respectively located at both ends of the adjusting roller, connecting holes on the connecting frames for the cutting roller to pass through, bearings located in the connecting holes, bushings located on the frame, and handles located on the bushings. The connecting frames are fixedly connected to the adjusting roller.

[0017] The connecting frame includes a frame and a block detachably connected to the frame. The block and the frame each have an arc-shaped groove, and the arc-shaped grooves on the block and the frame together form the connecting hole.

[0018] The frame has a round hole and a strip groove at its end. One end of the strip groove is located on the side wall of the frame, and the other end is connected to the round hole. A screw is provided at the end of the frame, and the screw passes through the strip groove.

[0019] The frame is equipped with a locking device for positioning the cutter roller.

[0020] The locking device includes an L-shaped support fixed to the frame, two screws on the L-shaped support, a movable part that can move back and forth relative to the L-shaped support, and a locking part on the end of the movable part. The block is provided with a threaded hole connected to the locking part, and the movable part is provided with a sliding groove, in which the two screws pass.

[0021] The second driving device includes a worm gear sleeved on the adjusting roller, a worm cooperating with the worm gear, a fixed seat on the frame for limiting the worm, and a turntable on the worm.

[0022] The first feeding device includes a material roller, a track on the frame, a rotating shaft passing through the frame, two flip arms fixed to the rotating shaft, extension blocks fixed to both ends of the rotating shaft, a joint hinged to the extension blocks, and a first cylinder connected to the output shaft and the joint; the ends of the track and the flip arms are respectively provided with semi-arc grooves, and bolts are passed through the frame at the positions corresponding to the semi-arc grooves on the track.

[0023] The first winding device includes a winding roller, a support arm that can be flipped and connected to the frame, a placement groove at the end of the support arm, a connecting block on the support arm, a second cylinder with an output shaft connected to the connecting block, an L-shaped block on the frame, and a screw on the L-shaped block that can be inserted into the connecting block. The connecting block is located between the connection point between the support arm and the frame and the placement groove.

[0024] This invention also discloses a process for producing polyester ultrathin films, comprising the following steps:

[0025] 1) Start the first drive device to control the cutter roller to flip upward around the adjusting roller, then adjust the position of the cutter and the cutter seat. After the adjustment is completed, start the first drive device to control the cutter roller to flip back to its original position; start the second drive device to control the cutter roller to move axially, so that the cutter is aligned with the first or second annular groove on the cutter seat.

[0026] 2) The film roll to be cut is fed through the first feeding device or the second feeding device, and the film at the end is manually guided to be cut and wound onto the first winding device and the second winding device.

[0027] 3) Start the equipment to drive the guide roller to rotate, so as to realize the automatic and continuous cutting of the film.

[0028] The beneficial effects of this application are: it provides a polyester ultrathin film production equipment and process that meets the requirements of cutting precision and different cutting specifications. Attached Figure Description

[0029] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0030] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0031] In the attached diagram:

[0032] Figure 1 is an overall schematic diagram of this application (the covers on both sides of the frame are not shown);

[0033] Figure 2 is a partial schematic diagram of Figure 1;

[0034] Figure 3 is an overall schematic diagram from other perspectives of this application;

[0035] Figure 4 is a magnified view of a portion of Figure 3;

[0036] Figure 5 is a partial schematic diagram of this application, mainly showing the cutter roller, the cutter holder roller and the parts that cooperate with it;

[0037] Figure 6 is a partial schematic diagram of Figure 1;

[0038] Figure 7 is a top view of this application. Detailed Implementation

[0039] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0040] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0041] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0042] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0043] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0044] As shown in Figures 1-7, a polyester ultrafilm production equipment includes a frame 1, a first feeding device, a second feeding device, a guide roller 2, a cutter roller 3, a cutter holder roller 4, an adjusting roller 5, a first driving device, a second driving device, a first gear 61, a second gear 62, a first winding device, and a second winding device. The guide roller 2 is used to drive the film forward. Multiple guide rollers 2 are configured, each rotatably mounted on the frame. Each guide roller 2 has a gear and a synchronous belt at its end. One guide roller 2 is connected to a motor drive, which in turn drives all the other guide rollers 2 to rotate via the gears and synchronous belt, thereby driving the film forward. The cutting roller 3 is used to cut the film along the width direction. The blade holder roller 4 is located below the cutting roller 3. The first gear 61 is fixedly sleeved on the cutting roller 3, and the second gear 62 is fixedly sleeved on the blade holder roller 4. The first gear 61 and the second gear 62 are connected by a synchronous belt. The end of the blade holder roller 4 is connected to the guide roller 2 by a synchronous belt. Thus, the blade holder roller 4 will rotate synchronously with the guide roller 2, while the cutting roller 3 will rotate in the opposite direction to the blade holder roller 4, thus cutting the film better.

[0045] As shown in Figure 5, the cutter roller 3 has multiple cutters 31 along its length. The cutters 31 can move relative to the cutter roller 3 and can be freely adjusted according to cutting requirements. The position of the cutters 31 is then fixed in place by screws or other structures. The cutter holder roller 4 has multiple cutter holders 41 along its length. Like the cutters 31, the cutter holders 41 can also be adjusted in position to cooperate with the cutters. The structure and fixing method of the cutters and cutter holders are existing technologies and will not be described in detail. The cutter holders have a first annular groove 411 and a second annular groove 412. These two annular grooves have different depths. When the cutter cooperates with different annular grooves, different cutting tensions can be applied to the film during the cutting process, avoiding cutting errors caused by tension mismatch, improving cutting accuracy, and also better adapting to the slitting operation of films with different thicknesses. The adjusting roller 5 is mounted on the frame 1. The first drive device drives the cutter roller 3 to move axially. When engaging with different annular grooves on the cutter holder 41, it is not necessary to move the cutter 31 or the cutter holder 41 again; the cutter roller 3 can be directly controlled to move axially as a whole. The second drive device drives the cutter roller 3 to rotate around the adjusting roller 5 as the central axis, so that the cutter roller 3 can move away from the cutter holder roller 4 to a certain extent, avoiding cuts when adjusting the position of the cutter 31 and the cutter holder 41. It also avoids wear caused by lateral friction between the cutter 31 and the cutter holder 41 when moving the cutter 31 or axially adjusting the cutter roller 3, thus improving the overall service life and ensuring that the cutter always has a good cutting effect on the film with high cutting accuracy.

[0046] Specifically, as shown in Figures 3 and 4, the first driving device includes a connecting frame 71, a connecting hole 72, a bearing 73, a bushing 74, and a handle 75. The second driving device includes a worm gear 76, a worm 77, a fixed base 78, and a turntable 79. Two connecting frames 71 are provided, respectively located at both ends of the adjusting roller 5. The connecting holes 72 are formed on the connecting frames 71, and both ends of the cutting roller pass through the connecting holes 72 on the two connecting frames 71. The bearings 73 are located within the connecting holes 72 and are fitted over the cutting roller, thus enabling the cutting roller 3 to rotate freely relative to the connecting frames 71. The bushing 74 is fixed to the frame with screws. One end of the adjusting roller 5 passes through the frame and extends beyond the frame surface, while the other end passes into the bushing 74. The outer surface of the portion passing through the bushing 74 is smooth, allowing it to rotate relative to the bushing 74. The handle 75's rotating shaft is inserted into the bushing 74 and threadedly connected to the bushing. When the handle is turned, the rotating shaft can move axially upwards in the bushing, thereby pushing the adjusting roller to move and causing the cutting roller to move.

[0047] The fixed base 78 is fixed to the frame 1 by screws. The screw is connected to the fixed base 78 by bearings. The fixed base 78 limits the movement of the worm 77. The upper end of the worm 77 is connected to the turntable 79, and the lower end is connected to the worm wheel 76. The worm wheel 76 is sleeved on the part of the adjusting roller 5 that extends out of the frame. The outer circumference of the adjusting roller 5 has multiple strip-shaped protrusions, and the inner wall of the worm wheel 76 has strip-shaped grooves. The protrusions and grooves cooperate to achieve anti-rotation engagement between the adjusting roller and the worm wheel 76, while the adjusting roller 5 can move axially relative to the worm wheel 76. The worm wheel 76 is positioned between the bushing 74 and the frame 1, and the bushing can limit the position of the worm wheel 76 to ensure that the worm and worm are always meshed.

[0048] As shown in Figure 4, the connecting frame 71 includes a frame body 711 and a block 712 detachably connected to the frame body 711 by screws. Both the block 712 and the frame body 711 have arc-shaped grooves, which together form the connecting hole 72. When the cutter needs to be replaced, the block 712 can be disassembled for easy maintenance. Furthermore, the frame body 711 has a round hole and a strip groove 713 at its end. One end of the strip groove 713 is located on the side wall of the frame body, and the other end communicates with the round hole. A screw 714 is provided at the end of the frame body 711, passing through the strip groove 713. The presence of the strip groove 713 allows the end of the connecting frame 71 connected to the adjusting roller 5 to have a certain deformation capacity, enabling adjustment of the flipping degree of the connecting frame 71, and consequently, adjustment of the relative position between the cutter roller 3 and the adjusting roller 5.

[0049] Preferably, a locking device is provided on the frame 1 to position the cutter roller 3, ensuring that the cutter roller 3 will not shift during the cutting process and improving cutting accuracy. As shown in Figure 4, the locking device includes an L-shaped support 11, two screws 12, a movable part 13, and a locking part 14. The L-shaped support 11 is fixed to the frame by screws, and the two screws 12 are fixedly connected to the upper surface of the L-shaped support 11. The movable part 13 is a long strip-shaped block, and the locking part 14 is a screw located at the end of the movable part 13. The block 712 has a threaded hole, and the lower end of the locking part 14 can pass into the threaded hole. The movable part 13 is placed on the L-shaped support 11, and the movable part 13 has a strip-shaped sliding groove 131. The two screws 12 pass through the sliding groove 131, allowing the movable part 13 to move back and forth relative to the L-shaped support 11. When the position of the cutter roller 3 needs to be adjusted, the movable part 13 can be retracted to the state where it does not extend out of the L-shaped support 11, which will not affect the position movement of the cutter roller 3.

[0050] As shown in Figure 6, the first and second feeding devices are used to place the roll of film to be cut, with the second feeding device located behind the first feeding device. The first feeding device includes a material roller 81, a track 82 mounted on the frame 1, a rotating shaft 83 passing through the frame 1, two flip arms 84 fixed to the rotating shaft 83, extension blocks 85 fixed to both ends of the rotating shaft 83, a connector 86 hinged to the extension blocks 85, and a first cylinder 87 connected to the output shaft and the connector 86. The end of the track 82 and the flip arms 84 are respectively provided with semi-circular grooves. When the output shaft of the cylinder extends, it drives the flip arms 84 to flip and engage with the material roller 81, thus limiting the position of the material roller 81. The structure of the second feeding device is the same as that of the first feeding device, and therefore will not be described further. Bolts 88 are installed on the frame 1 at positions corresponding to the semi-circular grooves on the track 82 to effectively prevent the material roller 81 from falling out of the semi-circular grooves.

[0051] As shown in Figure 2, the first and second winding devices are used to wind the slit film, with the second winding device located below the first winding device. This structure allows for the staggered collection of the slit film, resulting in better winding performance. The first winding device includes a winding roller 91, a support arm 92 rotatably connected to the frame 1, a placement groove 93 at the end of the support arm 92, a connecting block 94 on the support arm 92, a second cylinder 95 with its output shaft connected to the connecting block 94, an L-shaped block 96 on the frame 1, and a screw 97 on the L-shaped block 96. The screw 97 can be inserted into the connecting block 94. When the output shaft of the cylinder 95 retracts, it pulls the support arm 92 downwards, allowing the material on the winding roller 91 to be removed. Preferably, the connecting block 94 is located between the connection point of the support arm 92 and the frame 1 and the placement groove 93, forming a lever-saving arm that reduces the required pulling force and extends the service life of the cylinder. The structure of the second winding device is the same as that of the first winding device, so it will not be described again.

[0052] This invention also discloses a polyester ultrathin film production process, specifically implemented using the aforementioned polyester ultrathin film production equipment, comprising the following steps:

[0053] 1) Start the first drive device to control the cutter roller to flip upward around the adjusting roller, then adjust the position of the cutter and the cutter seat. After the adjustment is completed, start the first drive device to control the cutter roller to flip back to its original position; start the second drive device to control the cutter roller to move axially, so that the cutter is aligned with the first or second annular groove on the cutter seat.

[0054] 2) The film roll to be cut is fed through the first feeding device or the second feeding device, and the film at the end is manually guided to be cut and wound onto the first winding device and the second winding device.

[0055] 3) Start the equipment to drive the guide roller to rotate, so as to realize the automatic and continuous cutting of the film.

[0056] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in the embodiments of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. A polyester ultrathin film production equipment, comprising: frame; The first feeding device and the second feeding device are used to place the roll of film to be cut, and the second feeding device is located behind the first feeding device; Multiple guide rollers are used to drive the film forward; a cutter roller is provided with multiple cutters for cutting the film along the width direction; a cutter holder roller is provided with multiple cutter holders, each cutter holder having a first annular groove and a second annular groove, and the cutter holder roller is located below the cutter roller; an adjusting roller; and a first driving device for driving the cutter roller to move axially. The second drive unit is used to drive the cutter roller to rotate around the adjusting roller as the central axis; the first gear is fixedly sleeved on the cutter roller; the second gear is fixedly sleeved on the cutter holder roller, and the first gear and the second gear are connected by a synchronous belt drive; the first winding device and the second winding device are respectively used to wind the slit film, and the second winding device is located below the first winding device; the first drive unit includes connecting frames respectively disposed at both ends of the adjusting roller, connecting holes disposed on the connecting frames for the cutter roller to pass through, bearings disposed in the connecting holes, bushings disposed on the frame, and handles disposed on the bushings, and the connecting frames are fixedly connected to the adjusting roller; the connecting frame includes a frame body and a block detachably connected to the frame body, and the block The block and frame each have arc-shaped grooves, which together form the connecting hole. A round hole and a strip groove are provided at the end of the frame, with one end of the strip groove located on the side wall of the frame and the other end connected to the round hole. A screw is provided at the end of the frame, passing through the strip groove. A locking device is provided on the frame for positioning the cutter roller. The locking device includes an L-shaped support fixed to the frame, two screws on the L-shaped support, a movable part that can move back and forth relative to the L-shaped support, and a locking element at the end of the movable part. The block has a threaded hole connected to the locking element, and the movable part has a sliding groove through which the two screws pass.

2. The polyester ultrathin film production equipment according to claim 1, characterized in that: The second driving device includes a worm gear sleeved on the adjusting roller, a worm cooperating with the worm gear, a fixed seat on the frame for limiting the worm, and a turntable on the worm.

3. The polyester ultrathin film production equipment according to claim 1, characterized in that: The first feeding device includes a material roller, a track on the frame, a rotating shaft passing through the frame, two flip arms fixed to the rotating shaft, extension blocks fixed to both ends of the rotating shaft, a joint hinged to the extension blocks, and a first cylinder connected to the output shaft and the joint; the ends of the track and the flip arms are respectively provided with semi-arc grooves, and bolts are passed through the frame at the positions corresponding to the semi-arc grooves on the track.

4. The polyester ultrathin film production equipment according to claim 1, characterized in that: The first winding device includes a winding roller, a support arm that can be flipped and connected to the frame, a placement groove at the end of the support arm, a connecting block on the support arm, a second cylinder with an output shaft connected to the connecting block, an L-shaped block on the frame, and a screw on the L-shaped block that can be inserted into the connecting block. The connecting block is located between the connection point between the support arm and the frame and the placement groove.

5. A polyester ultrathin film production process using the polyester ultrathin film production equipment as described in any one of claims 1 to 4, characterized in that: Includes the following steps: The first drive device is activated to control the cutter roller to rotate upward around the adjusting roller. Then the positions of the cutter and cutter holder are adjusted. After the adjustment is completed, the first drive device is activated to control the cutter roller to rotate back to its original position. The second drive device is activated to control the axial movement of the cutter roller, aligning the cutter with the first or second annular groove on the cutter holder; the film roll to be cut is fed through the first or second feeding device, and the film at the end is manually guided to be cut and wound onto the first and second winding devices; the equipment is started to drive the guide roller to rotate, realizing automatic and continuous cutting of the film.

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