A roll changing and taping mechanism, method and coater

Abstract

The application discloses a roll changing and tape connecting mechanism, a method and a coating machine, and relates to the technical field of coating. The roll changing and tape connecting mechanism comprises a spraying device and a cutter swing arm device. The spraying device comprises a nozzle, and liquid is sprayed to the outer surface of an empty roll through the nozzle. The cutter swing arm device comprises a cutter and a cutter rubber roller. The cutter cuts the base material, and the cutter rubber roller presses and pastes one end of the base material to the outer surface of the empty roll which is sprayed with liquid after the base material is cut. The application has the beneficial effects that the roll changing can be completed without pasting rubber, the empty roll is convenient to recycle, the waste of the base material is reduced, and the cost is saved.

Description

Technical Field

[0001] This invention relates to the field of coating technology, and more specifically, to a roll-changing and splicing mechanism and method. Background Technology

[0002] In existing coating machines, when winding, cutting, and splicing tape, double-sided tape is first applied to the empty roll manually or by an adhesive applicator. After the speed of the empty roll matches the linear speed of the substrate, the cutter arm approaches the empty roll, and the substrate is pressed onto the empty roll by the cutter adhesive roller. At the same time, the cylinder is driven to cut the substrate. The cut end of the substrate is bonded to the empty roll with the double-sided tape on the empty roll, thus completing the roll change.

[0003] Existing tape rewinding, cutting, and splicing mechanisms require applying tape to empty rolls. This process is either time-consuming to do manually or requires an automated tape-applying mechanism, which occupies a significant amount of space. Furthermore, the tape leaves residue on the empty rolls or electrode sheets, making roll recycling inconvenient. This also leads to substantial waste and increased production costs, especially when roll changes are frequent and the substrate is expensive. Summary of the Invention

[0004] To overcome the shortcomings of the prior art, the present invention provides a roll-changing and splicing mechanism and method that can complete roll changing without the need for adhesive, facilitates empty roll recycling, reduces substrate waste, and saves costs.

[0005] The technical solution adopted by the present invention to solve its technical problem is: a tape changing and splicing mechanism, the improvement of which is that it includes a spraying device and a cutter swing arm device;

[0006] The spraying device includes a nozzle, through which liquid is sprayed onto the outer surface of an empty drum;

[0007] The aforementioned cutter swing arm device includes a cutter and a cutter roller. The cutter cuts the substrate, and after the substrate is cut, the cutter roller presses one end of the substrate against the outer surface of an empty roll sprayed with liquid.

[0008] In the above structure, the spraying device further includes a rotary cylinder and a nozzle arm. One end of the nozzle arm is connected to the cylinder rod of the rotary cylinder and rotates by the rotation of the flagpole. The nozzle is mounted on the nozzle arm.

[0009] In the above structure, the nozzle arm is provided with a strip-shaped mounting hole, and the nozzle is mounted on the strip-shaped mounting hole.

[0010] In the above structure, the cutter swing arm device further includes a cutter swing arm, a swing arm drive device, and a rubber roller drive device;

[0011] The cutter is mounted on one end of the cutter swing arm. The cutter swing arm is driven by the swing arm drive device to drive the cutter to swing back and forth. The rubber roller drive device is mounted on the cutter swing arm. The cutter rubber roller is located at the top of the rubber roller drive device. The cutter rubber roller achieves telescopic movement and swinging through the drive of the rubber roller drive device.

[0012] In the above structure, the rubber roller driving device includes a rubber roller sliding plate and a cutter swing arm cylinder;

[0013] The rubber roller sliding plate is slidably mounted on the cutter swing arm, the cutter swing arm cylinder is fixedly mounted on the cutter swing arm, and the top end of the cylinder rod of the cutter swing arm cylinder is connected to the rubber roller sliding plate. The rubber roller sliding plate is driven to slide on the cutter swing arm by the cutter swing arm cylinder.

[0014] The cutting roller is rotatably mounted on the top of the roller sliding plate.

[0015] In the above structure, the rubber roller drive device further includes a swing arm connecting rod and a rubber roller cylinder;

[0016] The rubber roller cylinder is rotatably mounted on the rubber roller sliding plate;

[0017] The swing arm linkage is rotatably mounted on the top of the rubber roller sliding plate, the cutter rubber roller is rotatably mounted on one end of the swing arm linkage, and the cylinder rod of the rubber roller cylinder is connected to the other end of the swing arm linkage, driving the cutter rubber roller to swing through the rubber roller cylinder.

[0018] In the above structure, the cutter arm device further includes a cutter arm, a cutter arm cylinder, and a cutter connecting rod;

[0019] One end of the cutting blade swing arm is fixedly connected to the cutting blade swing arm, the cutting blade connecting rod is rotatably mounted on the other end of the cutting blade swing arm, and the cutting blade swing arm cylinder is rotatably mounted on the cutting blade swing arm.

[0020] The cutting blade connecting rod has a free end and a swing end. The cylinder rod of the cutting blade swing arm cylinder is rotatably connected to the free end. The cutting blade is fixedly installed on the swing end of the cutting blade connecting rod and the cutting blade swings through the cutting blade swing arm cylinder.

[0021] The present invention also provides a method for changing and splicing tape in a coating machine, wherein the improvement is that the method includes the following steps:

[0022] S10. Spray liquid onto the outer surface of the empty roll of tape to be connected, so that the liquid adheres to the empty roll.

[0023] S20. Cut the substrate and press one end of the substrate onto the outer surface of the empty roll. The liquid temporarily bonds the substrate to the empty roll.

[0024] S30. Drive the empty drum to rotate while unwinding the substrate, so that the substrate is wound around the empty drum, completing the roll change and splicing.

[0025] Furthermore, the sprayed liquid is a volatile liquid.

[0026] Furthermore, the sprayed liquid is an alcohol solution.

[0027] The present invention also provides a coating machine, which is improved in that it includes a roll-changing and splicing mechanism as described above.

[0028] The beneficial effects of this invention are: it eliminates the need for manual adhesive application, leaving no traces on the roll and substrate, thus completing the roll-changing and splicing process during winding, improving winding quality, facilitating roll recycling, and reducing substrate waste; moreover, it has a simple structure, occupies little space, and improves the success rate and quality of roll changing. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the first structure of a tape-changing and splicing mechanism according to the present invention.

[0030] Figure 2 This is a schematic diagram of the second structure of a tape-changing and splicing mechanism according to the present invention.

[0031] Figure 3 This is a specific embodiment of a tape-changing and splicing mechanism according to the present invention.

[0032] In the figure: spray device 10, nozzle 101, rotary cylinder 102, nozzle arm 103, cutter swing arm device 20, cutter swing arm 201, cutter rubber roller 203, cutter 205, cutting blade swing arm 206, cutting blade swing arm cylinder 207, cutting blade connecting rod 208, swing arm drive motor 2021, cutter swing shaft 2022, worm gear 2023, worm wheel 2024, second square tube 2025, sensing plate 2026, rubber roller sliding plate 2041, cutter swing arm cylinder 2042, swing arm connecting rod 2043, rubber roller cylinder 2044, first square tube 2045, side plate 30, support plate 301, translation mechanism 40. Detailed Implementation

[0033] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0034] The following will clearly and completely describe the concept, specific structure, and technical effects of the present invention in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are all within the scope of protection of the present invention. Furthermore, all connections / linkages involved in the patent do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this invention can be combined interactively without contradicting each other.

[0035] Reference Figure 1 , Figure 2 As shown, the present invention provides a tape rewinding and splicing mechanism. Specifically, the tape rewinding and splicing mechanism includes a spraying device 10 and a cutter swing arm device 20. In this embodiment, the spraying device 10 and the cutter swing arm device 20 are both mounted on two vertically arranged side plates 30. The cutter swing arm device 20 is mounted at the top of the side plates 30, and the spraying device 10 is mounted between the two side plates 30 and located below the cutter swing arm device 20.

[0036] The spraying device 10 includes a nozzle 101, through which liquid is sprayed onto the outer surface of an empty roll. In this embodiment, the spraying device 10 also includes a rotary cylinder 102 and a nozzle arm 103. One end of the nozzle arm 103 is connected to the cylinder rod of the rotary cylinder 102 and rotates by the rotation of a rotating flagpole. The nozzle 101 is mounted on the nozzle arm 103, and the rotary cylinder 102 drives the nozzle arm 103 and the nozzle 101 to rotate. It should be noted that the rotary cylinder 102 can also be driven by other devices. For example, in another embodiment, the spraying device 10 includes a rotary motor and a nozzle arm, through which the rotary motor drives the nozzle arm to swing. The nozzle 101 is connected to a liquid supply device. The liquid sprayed by the nozzle 101 is preferably a volatile liquid, such as an alcohol solution. When the free end of the cut substrate comes into contact with the surface of the empty roll sprayed with liquid during roll changing, the air between the substrate and the roll surface is expelled under the action of external pressure and the surface tension of the alcohol solution, allowing the substrate to temporarily adhere to the surface of the empty roll. After roll changing is completed, the residual alcohol solution can evaporate without leaving any trace, facilitating the recycling of the empty roll and preventing adhesive residue from being left on the substrate, which could damage the substrate and render it unusable. Before the rewind cutter cuts the tape, the nozzle 101 approaches the empty roll via the rotating cylinder 102 to spray the alcohol solution. The alcohol solution adheres to the empty roll. After the cutter cuts the tape, the substrate falls onto the empty roll, and the alcohol solution acts as an adhesive, bonding the substrate to the empty roll. This eliminates the need for manual application of adhesive to the empty roll beforehand, achieving fully automated tape splicing. In addition, in this embodiment, the nozzle arm 103 is provided with a strip-shaped mounting hole, and the nozzle 101 is installed in the strip-shaped mounting hole to facilitate the adjustment of the position of the nozzle 101; a support plate 301 is provided between the two side upright plates 30, and the rotary cylinder 102 is fixedly installed in the middle position of the support plate 301. The spraying device 10 in this invention has a simpler structure, occupies less space, and is easier to install than the adhesive applicator.

[0037] Furthermore, the cutter swing arm device 20 includes a cutter swing arm 201, a swing arm drive device, a cutter rubber roller 203, a rubber roller drive device, and a cutter 205. The cutter 205 is installed at one end of the cutter swing arm 201. The cutter swing arm 201 is driven by the swing arm drive device to reciprocate. The rubber roller drive device is installed on the cutter swing arm 201. The cutter rubber roller 203 is located at the top of the rubber roller drive device. The cutter rubber roller 203 achieves telescopic movement and swinging through the rubber roller drive device. In this embodiment, after the nozzle 101 finishes spraying the empty roll, the empty roll reaches a preset speed under the drive of the chuck. The cutter swing arm 201 reaches the working position under the drive of the swing arm drive device. Then, the cutter rubber roller 203 approaches the substrate, and the cutter 205 instantly cuts the substrate. At the same moment the cutter 205 cuts the substrate, the cutter rubber roller 203 is driven by a cylinder to quickly press the substrate onto the empty roll, completing the automatic tape splicing process.

[0038] For the aforementioned rubber roller drive device, combined with Figure 1 , Figure 2 As shown, the present invention provides a specific embodiment in which the rubber roller driving device includes a rubber roller sliding plate 2041, a cutter swing arm cylinder 2042, a swing arm connecting rod 2043, and a rubber roller cylinder 2044. The rubber roller sliding plate 2041 is slidably mounted on the cutter swing arm 201, and the cutter swing arm cylinder 2042 is fixedly mounted on the cutter swing arm 201. The top end of the cylinder rod of the cutter swing arm cylinder 2042 is connected to the rubber roller sliding plate 2041, and the rubber roller sliding plate 2041 is driven to slide on the cutter swing arm 201 by the cutter swing arm cylinder 2042. The cutter rubber roller 203 is rotatably mounted on the top end of the rubber roller sliding plate 2041. Furthermore, the roller cylinder 2044 is rotatably mounted on the roller sliding plate 2041; the swing arm connecting rod 2043 is rotatably mounted on the top of the roller sliding plate, the cutter roller 203 is rotatably mounted on one end of the swing arm connecting rod 2043, and the cylinder rod of the roller cylinder 2044 is connected to the other end of the swing arm connecting rod 2043, driving the cutter roller 203 to swing. Therefore, with this structure, the cutter roller 203 can swing under the drive of the roller cylinder 2044, and simultaneously extend and retract under the drive of the cutter swing arm 201. Additionally, to improve strength, such as... Figure 2 As shown, a first square tube 2045 is provided between the two rubber roller sliding plates 2041.

[0039] Regarding the oscillation mode of the cutter 205, combined with Figure 1 , Figure 2As shown, the present invention provides a specific embodiment in which the cutter arm device 20 further includes a cutting blade arm 206, a cutting blade arm cylinder 207, and a cutting blade connecting rod 208. The cutting blade arm 206 is C-shaped, with one end fixedly connected to the cutting blade arm 201. The cutting blade connecting rod 208 is rotatably mounted on the other end of the cutting blade arm 206. The cutting blade arm cylinder 207 is rotatably mounted on the cutting blade arm 206. The cutting blade connecting rod 208 is 7-shaped, with its corner rotatably connected to the cutting blade arm 206. It also has a free end and a swing end. The cylinder rod of the cutting blade arm cylinder 207 is rotatably connected to the free end. The cutter 205 is fixedly mounted on the swing end of the cutting blade connecting rod 208, and the cutting blade 205 is driven to swing by the cutting blade arm cylinder 207.

[0040] In the above embodiments, the present invention provides a specific embodiment of the swing arm drive device, referring to... Figure 1 As shown, the swing arm drive device includes a swing arm drive motor 2021, a cutter swing shaft 2022, a worm gear 2023, and a worm wheel 2024. The other end of the cutter swing arm 201 is fixedly connected to the cutter swing shaft 2022, and the worm wheel 2024 is fixedly connected to one end of the cutter swing shaft 2022. The worm gear 2023 is connected to the output end of the swing arm drive motor 2021, and the worm gear 2023 meshes with the worm wheel 2024. The swing arm drive motor 2021 drives the cutter swing shaft 2022 to rotate, thereby causing the cutter swing arm 201 to swing. In this embodiment, the swing arm drive motor 2021, the worm gear 2023, and the worm wheel 2024 are all located on the outside of one of the side plates 30. The cutter swing shaft 2022 is rotatably mounted between two side plates 30. Multiple second square tubes 2025 for increasing strength are also provided between the two side plates 30. In addition, a sensing plate 2026 is provided on one end of the fixed worm gear 2024 of the cutter swing shaft 2022. An upper position sensor and a lower position sensor are respectively provided on both sides of the sensing plate 2026. The rotation angle of the cutter swing shaft 2022 is sensed by the upper position sensor and the lower position sensor, thereby controlling the swing angle of the cutter swing arm 201.

[0041] In this embodiment, the side plate 30 is disposed in the translation mechanism 40. The translation mechanism 40 drives the tape changing and splicing mechanism of the present invention to achieve translation. The translation mechanism 40 can be a lead screw module. Since the structure of the lead screw module is very mature in the prior art, it will not be described in detail in this embodiment. Figure 3 The image shows a specific embodiment of the roll-changing and splicing mechanism of the present invention, which is located near the empty roll 17 on the flipping frame 18.

[0042] In summary, before the rewinding cutter cuts the tape, the rotating cylinder 102 and nozzle 101 spray an alcohol solution onto the empty roll. The alcohol solution adheres to the empty roll. After the cutter cuts the tape, the substrate falls onto the empty roll, and the alcohol acts as an adhesive, bonding the substrate to the empty roll. This eliminates the need for manual application of adhesive to the empty roll beforehand, achieving fully automated tape splicing. After the alcohol solution has been sprayed onto the empty roll, the roll reaches a preset speed under the drive of the chuck. The cutter arm 201, driven by the arm drive motor 2021, reaches its working position. The cutter adhesive roller 203, driven by the cutter arm cylinder 2042, extends fully. When the cylinder 2042 is fully extended, the cutter adhesive roller 203 approaches the substrate. The cutter, driven by the cutting blade arm cylinder 207, instantly cuts the substrate. Simultaneously, at the instant the cutter cuts the substrate, the cutter adhesive roller 203, driven by the adhesive roller cylinder 2044, quickly presses the substrate onto the empty roll, completing the automatic tape splicing process. The present invention provides a roll-changing and splicing mechanism that eliminates the need for manual adhesive application, leaving no traces on the roll and substrate, thereby improving the winding quality, facilitating roll recycling, and reducing substrate waste. Furthermore, it features a simple structure, occupies little space, and improves the roll-changing success rate and quality.

[0043] In addition, the present invention also provides a method for changing and splicing tape in a coating machine, the method comprising the following steps:

[0044] S10. Spray liquid onto the outer surface of the empty roll of tape to be connected, so that the liquid adheres to the empty roll.

[0045] S20. Cut the substrate and press one end of the substrate onto the outer surface of the empty roll. The liquid temporarily bonds the substrate to the empty roll.

[0046] S30. Drive the empty drum to rotate while unwinding the substrate, so that the substrate is wound around the empty drum, completing the roll change and splicing.

[0047] In this embodiment, the liquid is an alcohol solution. The alcohol solution acts as an adhesive, bonding the substrate to the empty roll. This eliminates the need for manual application of adhesive to the empty roll beforehand, achieving fully automated roll splicing. It should be noted that the liquid can be a volatile liquid that evaporates after roll changing, leaving no residue. This facilitates the recycling of the empty roll and prevents adhesive residue from damaging the substrate and rendering it unusable.

[0048] The present invention also provides a coating machine, which includes the coating machine roll changing and splicing mechanism described above.

[0049] The above is a detailed description of the preferred embodiments of the present invention. However, the present invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A tape-changing and splicing mechanism, characterized in that, Includes a spraying device and a cutting arm mechanism; The spraying device includes a nozzle, through which liquid is sprayed onto the outer surface of an empty drum; The cutter swing arm device includes a cutter and a cutter roller. The cutter cuts the substrate, and the cutter roller presses one end of the substrate against the outer surface of an empty roll sprayed with liquid after the substrate is cut. The cutter swing arm device further includes a cutter swing arm, a swing arm drive device, and a rubber roller drive device; the cutter is installed at one end of the cutter swing arm, and the cutter swing arm is driven by the swing arm drive device to drive the cutter to swing back and forth; the rubber roller drive device is installed on the cutter swing arm, and the cutter rubber roller is set at the top of the rubber roller drive device; the cutter rubber roller is driven by the rubber roller drive device to achieve telescopic movement and swing. The rubber roller driving device includes a rubber roller sliding plate and a cutter swing arm cylinder; the rubber roller sliding plate is slidably mounted on the cutter swing arm, the cutter swing arm cylinder is fixedly mounted on the cutter swing arm, and the top end of the cylinder rod of the cutter swing arm cylinder is connected to the rubber roller sliding plate, so that the rubber roller sliding plate is driven to slide on the cutter swing arm through the cutter swing arm cylinder; the cutter rubber roller is rotatably mounted on the top end of the rubber roller sliding plate; The rubber roller drive device further includes a swing arm connecting rod and a rubber roller cylinder; the rubber roller cylinder is rotatably mounted on the rubber roller sliding plate; the swing arm connecting rod is rotatably mounted on the top of the rubber roller sliding plate, the cutter rubber roller is rotatably mounted on one end of the swing arm connecting rod, and the cylinder rod of the rubber roller cylinder is connected to the other end of the swing arm connecting rod, thereby driving the cutter rubber roller to swing through the rubber roller cylinder.

2. The tape changing and splicing mechanism according to claim 1, characterized in that, The spraying device further includes a rotary cylinder and a nozzle arm. One end of the nozzle arm is connected to the cylinder rod of the rotary cylinder and rotates by the rotation of the flagpole. The nozzle is mounted on the nozzle arm.

3. The tape changing and splicing mechanism according to claim 2, characterized in that, The nozzle arm is provided with a strip-shaped mounting hole, and the nozzle is mounted on the strip-shaped mounting hole.

4. The tape changing and splicing mechanism according to claim 1, characterized in that, The cutter arm device also includes a cutter arm, a cutter arm cylinder, and a cutter connecting rod; One end of the cutting blade swing arm is fixedly connected to the cutting blade swing arm, the cutting blade connecting rod is rotatably mounted on the other end of the cutting blade swing arm, and the cutting blade swing arm cylinder is rotatably mounted on the cutting blade swing arm. The cutting blade connecting rod has a free end and a swing end. The cylinder rod of the cutting blade swing arm cylinder is rotatably connected to the free end. The cutting blade is fixedly installed on the swing end of the cutting blade connecting rod and the cutting blade swings through the cutting blade swing arm cylinder.

5. A method for changing and splicing tape in a coating machine, characterized in that, This method is applied to the tape-changing and splicing mechanism as described in any one of claims 1-4, and the method includes the following steps: S10. Spray liquid onto the outer surface of the empty drum so that the liquid adheres to the empty drum; S20. After the substrate is cut, one end of the substrate falls onto the empty roll; one end of the substrate is pressed against the outer surface of the empty roll, and the liquid bonds the substrate to the empty roll.

6. The coating machine roll changing and splicing method according to claim 5, characterized in that, The sprayed liquid is a volatile liquid.

7. A method for changing and splicing tape in a coating machine according to claim 6, characterized in that, The sprayed liquid is an alcohol solution.

8. A coating machine, characterized in that, Includes the tape-changing and splicing mechanism as described in any one of claims 1 to 4.

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