Pre-coated film roll winding and unwinding flattening structure and film laminating machine

Abstract

The utility model discloses a precoating film roll take-up and pay-off flattening structure and a film laminating machine, the precoating film roll take-up and pay-off flattening structure comprises an air swelling shaft, the air swelling shaft is sleeved with a precoating film roll, one side of the air swelling shaft is connected with a magnetic powder brake, the lower side of the air swelling shaft is provided with a splayed roller, the two sides of the air swelling shaft are provided with supporting columns, and the supporting columns are connected with the air swelling shaft. The end, not connected with the air swelling shaft, of a magnetic powder brake connected with the air swelling shaft is rotationally connected to the supporting column on one side, the end, not connected with the magnetic powder brake, of the air swelling shaft is provided with a bearing, and the bearing is installed on the supporting column on the other side. The rotating speed of the air swelling shaft and the release tension of the film roll are controlled through the speed regulation tension controller, and controllability and detectability are achieved; the film roll is convenient and simple to load and unload and stable to operate; the splayed roller is used for deviation prevention and correction, and the film surface is flattened to prevent wrinkling; the whole structure is simple and reliable, the service life is long, the conveying quality and speed are improved, the maintenance cost is reduced, and manpower and material resources are saved.

Description

Technical Field

[0001] The utility model relates to the field of laminating machines, in particular to a pre-coating film roll reeling and flattening structure. Background Art

[0002] In daily life, people rely on laminating printed materials. Fully automatic laminating machines are common in many fields. To ensure fast and accurate lamination, the film roll must be placed on a support as required and released evenly at an appropriate speed. With the development of society, hot lamination, as a process, is increasingly focused on increasing production speed and quality. Automatic film roll retraction and unwinding devices can better control the release speed and precisely control the film tension. This is more scientific and environmentally friendly, and the process is controllable and detectable, which improves lamination speed and quality.

[0003] Because the pre-laminated roll rotates continuously with the laminating roller, which maintains a uniform speed, the roll release speed must be synchronized with the roller to produce a high-quality laminated product. Therefore, stringent requirements are placed on the film roll tension. The film should remain flat and wrinkle-free after release, ensuring a perfect bond with the product being laminated. Conventional mechanical damping film release systems are difficult to control tension, requiring frequent manual adjustments and often using friction to control resistance, making operation inconvenient. Undamped release systems are also unsuitable for large-diameter rolls, hindering the efficiency and speed of the laminating process. Therefore, finding simpler and more accurate ways to control film tension, achieve faster release speeds, and ensure smoother unwinding is a key challenge in improving this process. Utility Model Content

[0004] Technical problems to be solved by utility models

[0005] The technical problem to be solved by the utility model is to provide a pre-coating film roll reeling and flattening structure and a laminating machine, which solves the problem that the existing coating machine cannot control the tension of the film material and the film roll is prone to wrinkling and deviation.

[0006] Technical Solution

[0007] In order to solve the above problems, the technical solution provided by the present invention is as follows:

[0008] A pre-coated film roll reeling and flattening structure comprises an air-inflating shaft, a pre-coated film roll is sleeved on the air-inflating shaft, a magnetic powder brake is connected to one side of the air-inflating shaft, and an eight-shaped roller is provided on the lower side of the air-inflating shaft.

[0009] Furthermore, support columns are provided on both sides of the pneumatic shaft, and the end of the magnetic powder brake connected to the pneumatic shaft that is not connected to the pneumatic shaft is rotatably connected to one support column, and the end of the pneumatic shaft that is not connected to the magnetic powder brake is provided with a bearing, and the bearing is installed on the other support column.

[0010] Furthermore, crossbar frames are fixedly provided at the top ends of the support columns on both sides, and crossbars are fixedly provided between the crossbar frames.

[0011] Furthermore, a multifunctional wheel cutter assembly is arranged on the crossbar.

[0012] Furthermore, a cutting knife or a dotting knife is installed on the multifunctional wheel cutter assembly.

[0013] Furthermore, the gas expansion shaft can be replaced with a manual expansion shaft.

[0014] Furthermore, side vertical plates are provided on both sides of the gas-expanding shaft, and the lower side of the support column is fixedly installed on the side vertical plates.

[0015] Furthermore, the splayed roller is rotatably mounted on the side vertical plate.

[0016] Furthermore, a linear splayed groove is provided on the splayed roller.

[0017] Also disclosed is a laminating machine, comprising the above-mentioned pre-coating film roll reeling and flattening structure.

[0018] Beneficial effects

[0019] Compared with the prior art, the technical solution provided by this utility model has the following beneficial effects:

[0020] The speed-regulating tension controller controls the air-expansion shaft speed and the film roll release tension, making them controllable and detectable. The film roll can be loaded and unloaded easily and simply, and the operation is stable. The figure-eight rollers perform anti-deviation correction and flatten the film surface to prevent wrinkles. Combined with the multi-functional wheel assembly, it can realize functions such as pre-indentation and dotting. The overall structure is simple and reliable, with a long service life, which improves the conveying quality and speed, reduces maintenance costs, and saves manpower and material resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the structure proposed for an embodiment of the present utility model;

[0022] Figure 2 This is a schematic structural diagram of the pneumatic shaft 11 proposed in an embodiment of the present utility model;

[0023] Figure 3 This is a schematic structural diagram of the figure-eight roller 12 proposed in an embodiment of the present utility model. DETAILED DESCRIPTION

[0024] In order to further understand the content of the present invention, the present invention is described in detail with reference to the accompanying drawings and embodiments.

[0025] The present application will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific examples described herein are intended solely to illustrate the relevant utility model and are not intended to limit the utility model. It should also be noted that, for ease of description, only the relevant portions of the utility model are shown in the accompanying drawings. Terms such as "first" and "second" in the present utility model are provided for the convenience of describing the technical solution of the present utility model and do not have a specific limiting effect. They are general references and do not constitute a limitation on the technical solution of the present utility model. It should be noted that the embodiments and features therein in the present application may be combined with each other unless there is a conflict. In the description of the present utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or location relationships, are based on the positions or location relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a communication between the internal parts of two components. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances. Multiple technical solutions in the same embodiment, as well as multiple technical solutions in different embodiments, can be arranged and combined to form new technical solutions that do not contain contradictions or conflicts, and all of these are within the scope of protection claimed by this utility model.

[0026] Example 1

[0027] Combined with attachment Figure 1-3 A pre-coated film roll reeling and flattening structure includes an air-inflating shaft 11, on which claws are symmetrically provided. The claws of the air-inflating shaft 11 extend backward when inflated, and the air-inflating shaft 11 is used to fix the film roll.

[0028] The air expansion shaft 11 is sleeved with a pre-coated film roll 3, which is a drum roll structure. A cylindrical hollow core is provided inside the pre-coated film roll 3. After the pre-coated film roll 3 is sleeved on the air expansion shaft 11, the air expansion shaft 11 is ventilated. At this time, the claws on the air expansion shaft 11 extend to both sides until the claws of the air expansion shaft 11 abut against the inner surface of the cylindrical hollow core inside the film roll of the pre-coated film roll 3. At this time, the air expansion shaft 11 fixes the pre-coated film roll 3, and the air expansion shaft 11 passes through the film roll material core. The claws of the air expansion shaft press against the inner wall of the film roll, limiting the relative position of the film roll and the air expansion shaft, and automatic locking can be achieved.

[0029] Side plates 1 are provided on both sides of the gas-expanding shaft 11 . The side plates 1 are symmetrically arranged, and support columns 4 are fixed on the side plates 1 . The height of the support columns 4 is higher than the side plates 1 . The support columns 4 are used to install the gas-expanding shaft 11 .

[0030] One side of the air-expanding shaft 11 is connected to the magnetic powder brake 7, which controls the air-expanding shaft 11 to precisely control the tension of the film roll, and the speed is stable and adjustable.

[0031] The magnetic powder brake 7 is connected to the air expansion shaft to control the rotation speed of the air expansion shaft 11. The magnetic powder brake is a new type of transmission element that uses magnetic powder as a medium and forms a magnetic powder chain to transmit torque when powered. When the pre-coated film roll 3 is put into use and driven by external equipment, the film roll on the pre-coated film roll 3 begins to rotate and open, thereby causing the pre-coated film roll 3 to rotate continuously. When the pre-coated film roll 3 rotates, it drives the air expansion shaft 11 to rotate, and the magnetic powder brake 7 is used to decelerate the rotating air expansion shaft 11 at this time, that is, the magnetic powder brake 7 is the brake component of the air expansion shaft 11.

[0032] A bearing 9 is provided at one end of the pneumatic shaft 11 that is not connected to the magnetic powder brake 7 , and the bearing 9 is mounted on the support column 4 on the other side.

[0033] The support column 4 is provided with a support plate 10 at the position where the air inflation shaft 11 is installed. The support plate 10 is a movable structure. When the support plate 10 is movably removed from the support column 4, the air inflation shaft 11 can be removed, thereby facilitating the installation of the pre-coated film roll 3 onto the air inflation shaft 11, or removing the used film roll.

[0034] The magnetic powder brake 7 is connected to the air expansion shaft 11 and is mounted between the support column 4 and the support plate 10. The support plate 10 is movable, making it convenient to load and unload the film roll.

[0035] In other embodiments, the pneumatic shaft 11 can be replaced with a manual shaft, which can be opened and retracted manually by manually opening and retracting the claws of the manual shaft to fix the manual shaft and the pre-coated film roll 3. The manual shaft is also connected to the magnetic powder brake 7 and is mounted between the support column 4 and the support plate 10. It is manually locked after loading, which is simple and easy to operate and saves costs.

[0036] A crossbar frame 6 is fixed to the top of the support column 4, and a crossbar 5 is fixed between the crossbar frames 6. A multifunctional wheel knife assembly 8 is installed on the crossbar 5. The functional wheel knife assembly 8 is used to cooperate with the pre-coated film roll 3 fixed on the air expansion shaft 11. The multifunctional wheel knife assembly 8 can replace the cutting knife or the dotting knife to achieve pre-dotting and cutting marks.

[0037] The multi-energy wheel knife assembly 8 is fixed to the cross bar 5 through an adjustable fixing device. The connection structure of the multi-energy wheel knife assembly 8 is preferably a fixing block with bolts. When the multi-energy wheel knife assembly 8 is installed on the cross bar 5, the fixing block is put on the cross bar 5, and the multi-energy wheel knife assembly 8 is fixed to the cross bar 5 by tightening the bolts. The adjustable fixing method of the multi-energy wheel knife assembly 8 can better cooperate with the pre-coated film roll 3, adapt to the different working requirements of the pre-coated film roll 3, and adjust different working positions.

[0038] An eight-shaped roller 12 is rotatably provided between the side vertical plates 1 on the lower side of the air inflation shaft 11. The eight-shaped roller 12 is provided with an "eight"-shaped linear eight-shaped groove. The linear eight-shaped groove is centrally arranged on the eight-shaped roller 12. When the eight-shaped roller 12 rotates, it can prevent the film on the linear eight-shaped roller 12 from wrinkling and deviating. When the film roll is released, it passes under the eight-shaped roller 12, is flattened, and enters the coating roller station to prevent wrinkling and has the function of correction to prevent deviation.

[0039] When the above technical solution is in use, after the pre-coated film roll 3 is installed on the air expansion shaft 11, the film roll passes through the splayed roller 12, is flattened by the splayed roller 12, and then passes under the laminating heating roller.

[0040] After passing through the figure-eight roller 12 , the film roll is connected to a powered film roll rotating structure. In a general embodiment, a motor drives the rotating roller to rotate, thereby driving the film roll to move, and the movement of the film roll causes the pre-coated film roll 3 to rotate.

[0041] The corresponding parameters are set according to the speed and tension required by different materials and different film rolls. The motor receives the signal and starts. The motor cooperates with the magnetic powder brake 7 to drive the air expansion shaft 11 to rotate, evenly releasing the film roll to ensure that the lamination process is completed.

[0042] Example 2

[0043] A laminating machine comprises the pre-coating film roll reeling and flattening structure of the first embodiment.

[0044] The above is a schematic description of the present invention and its embodiments, which is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by this and, without departing from the inventive purpose of the present invention, designs a structure and embodiment similar to the technical solution without inventiveness, they shall fall within the scope of protection of the present invention.

Claims

1. A pre-coating film roll reeling and flattening structure, characterized in that: It includes an air-expanding shaft, a pre-coated film roll is sleeved on the air-expanding shaft, a magnetic powder brake is connected to one side of the air-expanding shaft, and an eight-shaped roller is provided on the lower side of the air-expanding shaft; Support columns are provided on both sides of the pneumatic shaft, and the end of the magnetic powder brake connected to the pneumatic shaft that is not connected to the pneumatic shaft is rotatably connected to the support column on one side, and the end of the pneumatic shaft that is not connected to the magnetic powder brake is provided with a bearing, and the bearing is installed on the support column on the other side; Side plates are provided on both sides of the air-expanding shaft, and the lower side of the support column is fixedly mounted on the side plates; The figure eight roller is rotatably mounted on the side vertical plate.

2. The pre-coating film roll reeling and flattening structure according to claim 1, characterized in that: Crossbar frames are fixedly provided at the top ends of the support columns on both sides, and crossbars are fixedly provided between the crossbar frames.

3. The pre-coating film roll reeling and flattening structure according to claim 2, characterized in that: The multifunctional wheel cutter assembly is arranged on the cross bar.

4. The pre-coating film roll reeling and flattening structure according to claim 3, characterized in that: A cutting knife or a dotting knife is installed on the multifunctional wheel cutter assembly.

5. The pre-coating film roll reeling and flattening structure according to claim 1, characterized in that: The pneumatic expansion shaft can be replaced with a hand expansion shaft.

6. The pre-coating film roll reeling and flattening structure according to claim 1, characterized in that: The figure eight roller is provided with a linear figure eight groove.

7. A laminating machine, characterized in that: The invention comprises the pre-coating film roll reeling and flattening structure according to any one of claims 1 to 6.

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