CN104875403A - Sheet or film material production line, surface hardening equipment and surface hardening device - Google Patents

Abstract

The application discloses piece or membrane material's surface hardening device includes first die head, still includes: the first die head is used for coating UV hardening liquid on the surface of one side, back to the soft roller, of the sheet or film material passing through the roller surface of the soft roller; the transparent roller is arranged next to the soft roller in parallel, a gap for the sheet or film material to pass through and extrude is formed between the soft roller and the transparent roller, and the roller surface of the transparent roller is made of a transparent material capable of passing through ultraviolet rays; the first UV lamp is arranged inside the transparent roller, and the irradiation direction of the first UV lamp points to the surface of the sheet or film material coated on the roller surface of the transparent roller. This surface hardening device sets up the UV lamp in transparent roller, from the inside direct one side surface irradiation that has the UV hardening liquid of coating of transparent roller, can not block the light of UV lamp, can add hard the processing to opaque piece or membrane material and contain UV transparent material. The application also discloses a surface hardening equipment containing the surface hardening device and a production line of sheet or film materials.

Description

Sheet or film material production line, surface hardening equipment and surface hardening device

technical field

The invention relates to the technical field of metal sheet, film or plastic sheet and film processing, in particular to a surface hardening device for sheet or film material. The invention also relates to a hardfacing device comprising the hardfacing device and a sheet or film material production line.

Background technique

During the production and processing of metal sheets, films or plastic sheets, and film materials, some need to harden the surface of the formed sheet or film materials to meet the needs of use. The usual surface hardening treatment of sheets and films is to use UV hardening solution containing corresponding solvents (UV is the abbreviation of ultraviolet in English, also known as ultraviolet hardening solution, which can be cured after being irradiated by ultraviolet rays and can prevent the passage of ultraviolet rays) through spraying, showering, etc. , rolling, coating and other methods attached to the surface of the sheet and film material, let it level off naturally, first volatilize the solvent and then dry it. After drying, the surface of the sheet and film material is like orange peel (this phenomenon is called shrinkage, water absorption or watermark). It can be seen that the surface of the sheet and film material obtained by this method is not smooth, and if the UV hardening solution contains additives such as pearlescent powder, it cannot be naturally leveled; It has adverse effects on the environment, and the drying operation requires drying equipment, which increases the cost and consumes electric energy, and the drying equipment takes up a large space.

In order to solve the above problems, the existing solution is to use a hardening mechanism to complete the surface hardening treatment of plastic extruded sheets or film materials, and the hardening mechanism includes a die head, an auxiliary roller, a main roller and a UV lamp. Among them, the auxiliary roller and the main roller are arranged in a horizontal line, and there is a certain gap between the auxiliary roller and the main roller, which is used for the passage of the plastic extruded sheet or film; the UV hardening liquid is installed in the die head, and the die head is set on the auxiliary roller Above the upper part of the auxiliary roller, it is used to apply UV hardening liquid to the plastic extruded sheet or film passing through the upper roller surface of the auxiliary roller; Plastic extruded sheets or films are irradiated. When working, the plastic extruded sheet or film material is conveyed from the upper roller surface of the auxiliary roller, passes through the gap between the auxiliary roller and the main roller, and winds half a circle on the main roller, and then continues to be conveyed backward; and At the same time, the die head applies UV hardening liquid to the sheet or film passing through the auxiliary roll, and when the extruded plastic sheet or film coated with UV hardening liquid passes through the gap between the auxiliary roll and the main roll, The auxiliary roller and the main roller squeeze the plastic extruded sheet or film, and the main roller is in contact with the side coated with UV hardening liquid. When the plastic extruded sheet or film passes through the irradiation area of the UV lamp, the UV hardening liquid instantly Cured on the plastic extruded sheet or film, the plastic extruded sheet or film is pressed and leveled by the main roller, so that the surface of the hardened plastic extruded sheet or film will not appear orange due to natural leveling skin contraction. And there is no need to add volatile solvents to the UV hardening liquid, which reduces the cost, has no pollution to the environment, does not require drying equipment, and does not occupy a large space.

However, the above method can only be used to extrude plastic sheets or films as hardening treatments for transparent materials, and for opaque sheets or films, and UV-containing transparent sheets or films (this is an anti-ultraviolet transparent material), the ultraviolet rays of the UV lamp It cannot pass through the sheet or film material, and cannot irradiate the UV hardening liquid on the surface of the sheet or film to make it solidify, and the purpose of surface hardening cannot be achieved.

Contents of the invention

In view of this, the object of the present invention is to provide a surface hardening device for a sheet or film material, which can solve the problem that the existing hardening mechanism cannot handle opaque materials under the premise of reducing cost, high environmental protection and reducing space occupation. The problem of surface hardening treatment with UV transparent materials.

Another object of the present invention is to provide a surface hardening device for a sheet or film material comprising the surface hardening device and a production line for the sheet or film material.

To achieve the above object, the present invention provides the following technical solutions:

A surface hardening device for a sheet or film material, including a first die for containing UV hardening liquid, and also includes:

A soft roll, the first die head is used to apply UV hardening liquid to the surface of the sheet or film material passing through the roll surface of the soft roll and facing away from the soft roll;

The transparent roller is arranged in close parallel with the soft roller, there is a gap between the soft roller and the transparent roller for the passage and extrusion of the sheet or film material, and the roller surface of the transparent roller is transparent through ultraviolet rays Material;

The first UV lamp is arranged inside the transparent roller, and the irradiation direction of the first UV lamp is directed to the surface of the sheet or film material coated on the roller surface of the transparent roller.

Preferably, in the above-mentioned surface hardening device, a gap adjustment mechanism connecting the soft roll and the transparent roll is also included for adjusting the gap between the two roll surfaces of the soft roll and the transparent roll .

Preferably, in the above-mentioned surface hardening device, it further includes a first temperature control component arranged inside the transparent roller and a second temperature control component arranged inside the soft roller, for controlling the temperature of the transparent roller respectively. The temperature of the roll surface of the roll and the soft roll.

Preferably, in the above-mentioned surface hardening device, the first temperature control component includes:

A fluid pipeline is arranged inside the transparent roller, and a liquid for adjusting the temperature of the transparent roller is passed into the fluid pipeline;

The heat conductor is wrapped on the outside of the fluid pipe and is in contact with the inner roller surface of the transparent roller for heat conduction.

Preferably, in the above-mentioned surface hardening device, the included angle between the plane formed by the rotation axis of the soft roller and the rotation axis of the transparent roller and the horizontal plane is 0°-90°.

Preferably, in the above-mentioned surface hardening device, the transparent roller is a double-layer or multi-layer plastic structure.

Preferably, in the above surface hardening device, it also includes:

The release film transmission mechanism is used to transmit the release film along the transmission path of the sheet or film material on the soft roller and the transparent roller, and the contact between the release film and the sheet or film material One side surface of the soft roller is in contact with;

The second die head is used to contain UV hardening liquid, and the second die head is coated with UV hardening liquid to the side surface of the release film passing through the soft roll and facing away from the soft roll;

The second UV lamp is arranged outside the transparent roller, and the irradiation direction of the second UV lamp is directed to the surface of the release film coated on the roller surface of the transparent roller.

The present invention also provides a surface hardening device for a sheet or film material, comprising an unwinding device for placing a roll of sheet or film material, a pulling device for pulling the sheet or film material to be transported, and a device for The protective film composite device in which the two surfaces of the sheet or film material are covered with a protective film also includes:

The surface hardening device according to any one of the above, the surface hardening device is arranged between the unwinding device and the traction device, and the protective film compounding device is arranged between the surface hardening device and the traction device between devices;

A secondary UV lamp curing device, comprising a third UV lamp, a cooling roller arranged side by side and two guide rollers, the cooling roller is located between the two guide rollers, and the third UV lamp is located outside the cooling roller , and its irradiation direction is directed to the surface of the sheet or film material coated on the roll surface of the cooling roller; the secondary UV lamp curing device is located between the protective film compounding device and the traction device.

Preferably, in the above-mentioned surface hardening equipment, it also includes:

The material storage device is arranged between the unwinding device and the surface hardening device, and includes fixed row rollers and movable row rollers that are relatively arranged and relatively movable, and both the fixed row rollers and the movable row rollers are set There are a plurality of rolls on which the sheet or film material is alternately wound on said fixed row of rolls and said moving row of rolls.

The embodiment of the present invention also provides a sheet or film material production line, which sequentially includes plastic sheet or film material forming equipment, a surface hardening device as described in any one of the above, a protective film compounding device, a secondary UV lamp curing device, pulling device, winding device and slicer.

Compared with prior art, the beneficial effect of the present invention is:

In the surface hardening device of the sheet or film material provided by the present invention, the soft roll and the transparent roll are closely arranged in parallel, and the first die head applies the UV hardening liquid to the back of the sheet or film material passing through the roll surface of the soft roll. On one side surface of the soft roller, after the sheet or film material passes through the gap between the soft roller and the transparent roller, one side surface of the sheet or film material coated with UV hardening liquid is covered on the transparent roller, and the transparent roller The roller surface of the roller is a transparent material that can pass ultraviolet rays, the first UV lamp is arranged inside the transparent roller, and the irradiation direction of the first UV lamp is directed to the surface of the sheet or film material coated on the roller surface of the transparent roller. When performing hardening treatment, the surface hardening device squeezes the sheet or film material coated with UV hardening liquid through the gap between the soft roll and the transparent roll, so that the UV hardening liquid is evenly distributed on the surface, After that, the light of the first UV lamp is irradiated on the surface of the side coated with UV hardening liquid through the roll surface of the transparent roller, so that the UV hardening liquid is solidified on the surface, and a flat sheet or film material with a certain thickness is obtained, and the hardening is completed. Hard handling. Compared with the existing technology, there is no need to add volatile solvents to the UV hardening solution, so the processing cost is reduced, the environment will not be polluted, and the natural leveling will not cause orange peel defects on the surface, and it does not need Drying equipment saves drying costs and reduces space occupation. At the same time, the surface hardening device in the present invention adopts a UV lamp installed in the transparent roller, and directly goes from the inside of the transparent roller to the surface coated with UV hardening liquid. The method of irradiating one side of the surface will not block the light of the UV lamp, and can harden the opaque sheet or film material and the transparent material containing UV, which solves the problem that the existing hardening mechanism cannot complete opaque materials and UV-containing materials. Technical defects in hardfacing of transparent materials.

The surface hardening device in an embodiment of the present invention is additionally equipped with a gap adjustment mechanism, a first temperature control part and a second temperature control part, the thickness of the sheet or film material can be roughly adjusted through the gap adjustment mechanism, and through the transparent roller The first temperature control part and the second temperature control part in the soft roller respectively control the roll surface temperature of the transparent roll and the soft roll, and use the temperature to change the physical properties of the UV hardening liquid, thereby more accurately controlling the forming thickness of the sheet or film material .

The surface hardening device provided by the present invention adopts the surface hardening device of the present application, so it has the same beneficial effect as above. In addition, the surface hardening equipment in an embodiment of the present invention is provided with a material storage device, which can store the material before the hardening treatment. When the roll sheet or film material on the unwinding device is transferred, a new Rolled sheet or film material, at this time, in the process of continuing the material, the material of the storage device can be used, so that the hardening treatment can be carried out without interruption, and the processing efficiency is improved.

In the sheet or film production line provided by the present invention, the surface hardening device is directly connected to the plastic sheet or film material molding equipment, so that the surface hardening treatment of the sheet or film material can be completed online, and the production efficiency is higher.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only It is an embodiment of the present invention, and those skilled in the art can also obtain other drawings according to the provided drawings without creative work.

Figure 1 is a schematic structural view of a surface hardening device for a sheet or film material provided by an embodiment of the present invention;

Fig. 2 is a structural schematic diagram of another surface hardening device for a sheet or film material provided by an embodiment of the present invention;

3 is a schematic structural view of a transparent roller of a surface hardening device provided by an embodiment of the present invention;

Fig. 4 is a side sectional view of the transparent roller in Fig. 3;

Fig. 5 is a connection schematic diagram of a surface hardening device for a sheet or film material provided by an embodiment of the present invention;

Fig. 6 is a connection schematic diagram of another surface hardening device for a sheet or film material provided by an embodiment of the present invention;

Fig. 7 is a schematic structural view of a storage device of a surface hardening device for a sheet or film material provided by an embodiment of the present invention;

Fig. 8 is a schematic structural view of a secondary UV lamp hardening device of a surface hardening device for a sheet or film material provided by an embodiment of the present invention.

Among them: 1 is the first die head, 2 is the sheet or film material, 3 is the soft roller, 4 is the gap adjustment mechanism, 5 is the transparent roller, 6 is the first UV lamp, 7 is the second die head, 8 is the release type Film transmission mechanism, 9 is a release film, 10 is a second UV lamp, 11 is a bearing, 12 is a first temperature control component, 121 is a fluid pipeline, and 122 is a heat conductor;

01 is unwinding device, 02 is conveying roller, 03 is storage device, 031 is moving row roller, 032 is fixed row roller, 04 is surface hardening device, 05 is thickness gauge, 06 is protective film compounding device, 07 071 is the third UV lamp, 072 is the cooling roller, 073 is the guide roller, 08 is the traction device, 09 is the winding device, and 010 is the slicer.

Detailed ways

The core of the present invention is to provide a surface hardening device for sheet or film materials, which can solve the problem that the existing hardening mechanism cannot treat opaque materials and UV-containing The problem of surface hardening treatment of transparent materials.

The present invention also provides a surface hardening equipment for a sheet or film material and a sheet or film material production line comprising the above surface hardening device, which can perform surface hardening treatment on opaque materials and UV-containing transparent materials.

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Please refer to Figure 1, the embodiment of the present invention provides a surface hardening device for a sheet or film material, hereinafter referred to as a surface hardening device, including a first die head 1, a soft roll 3, a transparent roll 5 and a first UV lights6. Wherein, the first die head 1 is used for containing the UV hardening liquid; the soft roll 3 is a rubber roll or a polyurethane roll, and the Shore hardness of the soft roll 3 is 10 to 99 degrees, more preferably 50 to 70 degrees. Like this, the soft roll 3 When extruded and contacted with the sheet or film material 2, the surface of the sheet or film material 2 will not be damaged; the diameter of the soft roller 3 is 100mm-1000mm, more preferably 200mm-500mm, the size is selected according to the actual situation, and is not limited to this The numerical range that embodiment enumerates; The first die head 1 is used for coating the one side surface of the sheet or film material 2 passing through the roll surface of soft roll 3 with UV hardening liquid, and this surface is a side facing away from soft roll 3 The side surface, shown as the upper surface in Figure 1.

The transparent roller 5 and the soft roller 3 are arranged in close parallel, that is, the rotation axes of the transparent roller 5 and the soft roller 3 are parallel, and there is a gap between the soft roller 3 and the transparent roller 5, which is used for the sheet or film material 2 to pass through and be drawn in the gap. The roller surface of soft roller 3 and transparent roller 5 is extruded; The roller surface of transparent roller 5 is the transparent material that can pass ultraviolet rays; The roller surface of transparent roller 5 can be made by transparent material such as glass, quartz, plastics that can pass ultraviolet rays, The transparent roller 5 is a hollow structure.

The first UV lamp 6 is arranged in the inside of the transparent roller 5, and the irradiation direction of the first UV lamp 6 points to the surface of the sheet or film material 2 coated on the roll surface of the transparent roller 5, that is, the light of the first UV lamp 6 It can pass through the roller surface of the transparent roller 5 and directly irradiate on one side surface of the sheet or film material 2 that is in contact with the roller surface of the transparent roller 6 .

The working process and working principle of the above-mentioned surface hardening device are: the sheet or film material 2 passes through the roll surface of the soft roll 3, and the first die head 1 coats the surface of the sheet or film material 2 facing away from the soft roll 3 with UV After hardening liquid, the sheet or film material 2 passes through the gap between the soft roll 3 and the transparent roll 5, and is squeezed flat by the soft roll 3 and the transparent roll 5 in the gap, and the UV hardening liquid is evenly coated, and the sheet or The side surface of film material 2 that is coated with UV hardening liquid is wound on the transparent roller 5 and contacts with the roller surface of the transparent roller 5. When passing through the irradiation position of the first UV lamp 6, the light of the first UV lamp 6 Through the roll surface of the transparent roller 5, directly irradiate the surface of the sheet or film material 2 coated with the UV hardening liquid, and cure the UV hardening liquid to complete the hardening treatment.

It can be seen that no matter whether the sheet or film material 2 is transparent or opaque, the first UV lamp 6 in the transparent roll 5 can directly irradiate the surface of the sheet or film material 2 in contact with the roll surface through the roll surface of the transparent roll 5 , so that the UV hardening liquid on the surface is solidified, and light does not need to pass through the sheet or film material 2. Therefore, the surface hardening device in the present invention can solve the problem that the existing hardening mechanism cannot be transparent to opaque materials and UV-containing materials. The problem of surface hardening treatment of materials. At the same time, the UV hardening liquid of the surface hardening device does not need to add volatile solvents, therefore, the cost of UV hardening liquid is reduced, the adverse impact on the environment is reduced, and drying equipment is not required for drying operation. It saves electric energy and reduces space occupation.

As shown in Figure 1, the surface hardening device is further optimized, the surface hardening device in the present embodiment also includes a gap adjustment mechanism 4 connecting the soft roll 3 and the transparent roll 5, for adjusting the gap between the soft roll 3 and the transparent roll 5 The size of the gap between the two roll surfaces. By adjusting the size of the gap, the thickness of the UV hardening liquid on the sheet or film material 2 is adjusted to obtain sheets or film materials 2 meeting different requirements.

The gap adjusting mechanism 4 can specifically be a threaded adjusting mechanism or an inclined cone adjusting mechanism of a rotating bracket connecting the soft roller 3 and the transparent roller 5 . The thread adjustment mechanism is to set screw rods and threaded holes on the two rotating brackets respectively. Through the rotation of the screw rods in the screw holes, the two rotating brackets are moved on the screw rods to realize the function of adjusting the size of the gap. The principle is roughly the same, and is not limited to the structures listed in this embodiment. As long as the gap adjustment can be realized. Generally, the gap between the soft roller 3 and the transparent roller 5 ranges from 0 mm to 2 mm, depending on specific conditions.

In order to prevent the UV hardening liquid from leaking from the gap between the soft roller 3 and the transparent roller 5 to both ends, in this embodiment, baffles are provided at both ends of the gap between the two rollers, and the UV hardening liquid It remains in the space enclosed by the gap and the baffle, and will not leak to both ends. Of course, it is also possible not to set the baffle, but there will be unnecessary loss of UV hardening fluid.

As shown in Fig. 3 and Fig. 4, furthermore, on the basis of being provided with the gap adjustment mechanism 4, the surface hardening device in this embodiment also includes a first temperature control member 12 and a device arranged inside the transparent roller 5. The second temperature control part inside the soft roll 3 is used to control the temperature of the transparent roll 5 and the roll surface of the soft roll 3 respectively. By changing the temperature of the roller surface and cooperating with the gap adjustment mechanism 4, the purpose of precisely controlling the coating thickness of the UV hardening liquid on the sheet or film material 2 is achieved. The viscosity of UV hardening fluid is related to temperature, the higher the temperature, the lower the viscosity of UV hardening fluid, and the thinner the thickness will be, and vice versa. The temperature control range of the first temperature control member 12 and the second temperature control member is 0°C to 150°C, more preferably 30°C to 90°C. During specific work, the thickness is first roughly adjusted by the gap adjustment mechanism 4, and then the temperature of the roll surface of the transparent roll 5 and the soft roll 3 is adjusted respectively by the first temperature control part 12 and the second temperature control part, and then the UV hardening is controlled. Liquid temperature, adjust the viscosity of UV hardening liquid, and finally achieve the purpose of precisely controlling the thickness of UV hardening liquid.

As shown in FIG. 3 and FIG. 4 , this embodiment provides a specific first temperature control component 12 , and the first temperature control component 12 includes a fluid pipe 121 and a heat conductor 122 . Wherein, the fluid pipeline 121 is arranged on the inside of the transparent roller 5, and the liquid that is used to adjust the temperature of the roller surface of the transparent roller 5 is passed into the inside, which can be water or oil; Outside the pipe 121 , the heat conductor 122 is in contact with the inner roller surface of the transparent roller 5 to conduct heat. The heat conductor 122 can be a semi-cylindrical structure, the fluid pipe 121 is inserted in the heat conductor 122, and both ends protrude from both sides of the transparent roller 5, and the two ends of the fluid pipe 121 communicate with the external liquid. The fluid pipe 121 flows continuously, thereby keeping the temperature of the roll surface of the transparent roll 5 constant.

Certainly, except adopting the structure of the previous embodiment, the first temperature control member 12 can also directly feed gas from one end of the transparent roller 5, the gas enters the transparent roller 5, and directly conducts heat to the inner roller surface, and the gas flows from The other end of the transparent roller 5 comes out to form a gas circulation channel. The gas is heated or cooled in advance, and after reaching a certain temperature, it is continuously passed into the transparent roller 5 to achieve the purpose of temperature control.

It can be seen from Fig. 3 and Fig. 4 that the two ends of the transparent roller 5 are sleeved in the bearing 11, and are rotatably connected with the rotating bracket through the bearing 11, and the two ends of the first UV lamp 6 are sealed and fixed on the two ends of the transparent roller 5 , both ends of the fluid pipe 121 of the first temperature control component 12 protrude from both ends of the transparent roller 5 . In this embodiment, the length of the transparent roller 5 is 300mm-3000mm, preferably 1000mm-2000mm, the thickness of the roller surface is 1mm-200mm, preferably 20mm-40mm, and the outer diameter is 100mm-1000mm, preferably 300mm-500mm. Of course, the specific size is determined according to the actual situation, and is not limited to the numerical range listed in this embodiment, and is not specifically limited here.

The structure of the second temperature control part can be the same as the structure of the first temperature control part 12, and it can also be a spiral pipe arranged in the hollow soft roll 3, or a straight pipe inserted in the solid soft roll 3, and the internal passage A fluid, either gas or liquid, is introduced to regulate temperature.

In this embodiment, the arrangement of the soft roller 3 and the transparent roller 5 is optimized, and the angle between the plane formed by the rotation axis of the soft roller 3 and the rotation axis of the transparent roller 5 and the horizontal plane is 0°-90°. The included angle between the plane where the axis of rotation of the soft roller 3 and the transparent roller 5 are located in Fig. 1 and the horizontal plane is 0°, certainly, the included angle can be any angle between 0°～90°, the first die head 1 Adjust the position accordingly, as long as the first die head 1 can apply UV hardening liquid to the surface of the sheet or film material 2 on the soft roll 3, and the surface can be extruded and leveled and cured by UV light irradiation That's it. It is not limited to the arrangement shown in FIG. 1 .

In this embodiment, the transparent roller 5 can also be a double-layer or multi-layer plastic structure. Specifically, the inner layer is one or more of hard transparent plastic, soft transparent plastic, and elastic plastic, and the outer layer is BOPET (biaxially oriented polyester) film. BOPET film has high strength, good rigidity, transparency, and glossiness. High, extremely high wear resistance, minimal heat shrinkage, good antistatic properties, etc., can well coat the UV hardening liquid on the surface of the sheet or film material 2 smoothly. Of course, the transparent roller 5 can also be a layer of glass, quartz or plastic structure.

If the surface of the sheet or film material to be produced has texture, the roll surface of the transparent roller 5 in this embodiment is provided with texture, such as frosted surface, pattern, pattern, brushed texture and the like.

The surface hardening device in the above embodiments can complete the hardening treatment of the surface of one side of the sheet or film material 2. This embodiment provides another surface hardening device, as shown in Figure 2, which can perform hardening of the sheet or film material 2. 2 Hardening treatment on both sides of the surface. In addition to the components in the above embodiments, the surface hardening device also includes a release film transmission mechanism 8 , a second die head 7 and a second UV lamp 10 . Wherein, a release film 9 is transmitted on the release film transmission mechanism 8, and the release film 9 is a non-adhesive transparent material. The film material 2 is transported on the transmission path of the soft roller 3 and the transparent roller 5, and the release film 9 is in contact with the surface of the sheet or film material 2 that is in contact with the soft roller 3; the second die head 7 is used to hold UV hardening liquid, and the second die head 7 is coated with UV hardening liquid on the side surface of the release film 9 passing through the soft roll 3 and facing away from the soft roll 3; the second UV lamp 10 is arranged on the outside of the transparent roll 5 , and the irradiation direction of the second UV lamp 10 is directed to the surface of the release film 9 coated on the roller surface of the transparent roller 5 , and the surface faces away from the transparent roller 5 .

The working principle and working process of the above-mentioned surface hardening device are: while the sheet or film material 2 is transported on the soft roller 3 and the transparent roller 5, the release film 9 is also transferred between the soft roller 3 and the transparent roller through the release film transmission mechanism 8. 5, and the transmission path of the release film 9 on the soft roller 3 and the transparent roller 5 is the same as that of the sheet or film material 2, more preferably synchronously, the first die head 1 is coated on the sheet or film material 2 While UV hardening liquid (the operation is the same as the operation of the surface hardening device among Fig. 1), the second die head 7 is coated with UV hardening liquid to the side surface of the release film 9 facing away from the soft roller 3, Because the side surface of the release film 9 facing away from the soft roller 3 is in contact with the side surface of the sheet or film material 2 that is not coated with the UV hardening liquid, therefore, in the transmission process of the release film 9, the release film 9 The UV hardening liquid on the type film 9 is coated on the surface of the sheet or film material 2 in contact with the release film 9, and when passing through the gap between the soft roller 3 and the transparent roller 5, the both sides of the sheet or film material 2 The UV hardening liquid is extruded and evenly coated on both sides of the surface. When the release film 9 is transmitted to the irradiation position where the second UV lamp 10 is located, the light of the second UV lamp 10 passes through the release film. 9 is irradiated on one side surface of the sheet or film material 2 in contact with the release film 9, the UV hardening liquid on the surface is solidified, and the UV liquid is peeled off from the release film 9 along with the transmission of the release film 9 Open, at the same time, the light that the first UV lamp 6 emits cures the UV hardening liquid on the surface of the sheet or film material 2 that is in contact with the transparent roller 5, therefore, the both sides surfaces of the sheet or film material 2 are completed simultaneously. hardening treatment.

More preferably, the release film 9 in this embodiment is a BOPET release film. The advantages of the BOPET material have been introduced above, and will not be repeated here. Of course, the release film 9 can also be a PE release film, a PET release film, an OPP release film, etc., but the effect is not as good as that of the BOPET release film.

The surface hardening device provided by the present invention can carry out surface hardening treatment to transparent sheet or film material and opaque sheet or film material, applicable transparent material can be PVC, PET, PS, PETG, PC, PMMA, PCT, PCTG, GAG (PETG/PET/PETG composite material), PC/PMMA composite material, TPU, etc. The opaque material may be a metal sheet or film, stainless steel sheet or film, aluminum sheet or film.

The surface hardening device can also be used in a UV printing machine. The transparent roller 5 is replaced with the plate roller on the printing machine, and the first UV lamp 6 is set in the transparent roller 5 to realize the printing of solvent-free and UV-containing ink materials.

As shown in Figures 5 and 6, the embodiment of the present invention also provides a surface hardening device for sheet or film materials, including unwinding devices 01 sequentially arranged along the conveying direction of sheet or film materials 2, as described above. The surface hardening device 04, thickness gauge 05, protective film compounding device 06, secondary UV lamp curing device 07, traction device 08, winding device 09 and slicer 010 described in the example.

Among them, the conveying roller 02 and the guide roller are arranged at suitable positions between each device; Transmission, corresponding processing after passing through each device; the thickness gauge 05 is used to measure the thickness of the sheet or film material 2 after surface hardening treatment; the protective film composite device 06 is used to paste on the two surfaces of the sheet or film material 2 The protective film mainly includes the upper and lower film release mechanism and the upper and lower pressure rollers, which respectively press the protective film on the two surfaces of the sheet or film material 2 to isolate the air (during the secondary UV lamp curing process, the UV hardening liquid cannot be in contact with air), prevent subsequent processing from being scratched and soiled; the secondary UV lamp curing device 07 includes a third UV lamp 071 and a cooling roller 072 and two guide rollers 073 arranged in parallel next to each other, as shown in Figure 8 , the cooling roll 072 is located between the two guide rolls 073, the third UV lamp 071 is located outside the cooling roll 072, and its irradiation direction points to the surface of the sheet or film material 2 coated on the roll surface of the cooling roll 072, for Enhance the curing effect, improve the adhesion and surface hardness of UV hardening fluid, and increase production capacity. The cooling roller 072 is used to take away the heat generated by the third UV lamp 071, and the guide roller 073 is used to press the sheet or film material 2 on the roller surface of the cooling roller 072 to increase the contact area with the cooling roller 072 and improve the cooling effect ; The winding device 09 and the slicing machine 010 are connected in parallel with the traction device 08, and can perform winding operation or cutting operation.

It can be seen that the surface hardening equipment of this sheet or film material can carry out surface treatment on the rolled sheet or film material 2, and the surface hardening equipment in Fig. 5 can harden the surface of one side of the sheet or film material 2 , the surface hardening device in FIG. 6 can harden both sides of the sheet or film material 2 . Of course, on the basis of Fig. 5, two sets of surface hardening devices in Fig. 1 are provided, arranged one after the other, and respectively corresponding to the two sides of the sheet or film material 2, which can also complete the two sides of the sheet or film material 2. Surface hardening.

As shown in Fig. 5-Fig. 7, the surface hardening equipment in the embodiment of the present invention also includes a material storage device 03, and the material storage device 03 is arranged between the unwinding device 01 and the surface hardening device 04; the material storage device 03 includes The fixed row rollers 032 and the movable row rollers 031, which are relatively arranged and relatively movable, are provided with a plurality of rollers, and the sheet or film material 2 is alternately wound on the fixed row rollers 032 and the movable row rollers. On the roller of row roller 031. Preferably, the fixed row rollers 032 and the moving row rollers 031 are placed horizontally, the fixed row rollers 032 are positioned under the moving row rollers 031, the moving row rollers 031 can move up and down relative to the fixed row rollers 032, of course, the moving row rollers 031 and the fixed row rollers 032 can also be placed vertically, as long as it can realize material storage.

The function of the storage device 03 is to pre-store the rolled sheet or film material 2 of the unwinding device 01, store the material before the hardening treatment, and when the rolled sheet or film material on the unwinding device 01 is transferred , when it is necessary to replace the new rolled sheet or film material, the material stored in the storage device 03 can continue to be used in the process of connecting the material, and the material can be stored after the material is connected, so that the hardening treatment can It is carried out without interruption, which improves the processing efficiency.

The specific operation of the material storage device 03 is: when storing materials, the moving row roller 031 moves upward relative to the fixed row roller 032, and the two are separated by a certain distance. 031 roller, therefore, sheet or film material 2 is stored in storage device 03; The distance between them becomes smaller, therefore, the length of the sheet or film material wound on the moving row roller 031 and the fixed row roller 032 becomes shorter, which can be used for subsequent processing. After the connection is completed, move the moving row roller 031 upwards , continue to store materials. Of course, the material storage device 03 may not be provided, and the provision of the material storage device 03 is a more preferred solution.

The embodiment of the present invention also provides a sheet or film material production line, including plastic sheet or film material molding equipment arranged in sequence along the conveying direction of the production line, the surface hardening device 04 as described in all the above embodiments, and the thickness gauge 05 , Protective film composite device 06, secondary UV lamp curing device 07, traction device 08, winding device 09 and slicer 010. The sheet or film production line can directly perform on-line surface hardening treatment on the sheet or film material 2 produced by the plastic sheet or film material forming equipment, which saves the intermediate rolling process and further improves production efficiency. And it can harden the surface of opaque plastics and UV-containing transparent plastics.

In this embodiment, the first UV lamp 6 , the second UV lamp 10 and the third UV lamp 071 are mercury lamps, halogen lamps, LED lamps, cold light lamps, electrodeless lamps and the like. Add wear-resistant and hardness-enhancing materials such as pearl powder or glass powder, as well as various pigments and additives to the UV hardening liquid. The pump used for UV hardening fluid is a diaphragm pump. The products produced by the surface hardening device, surface hardening equipment and sheet or film material production line in this embodiment can be used for building materials, decoration, kitchen and bathroom, and also can be used for housings of household appliances, electronic products, lamp panels or decorations, etc.

Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same and similar parts of each embodiment can be referred to each other.

The above description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. a surperficial stiffened device for sheet or membrane material, comprises the first die head (1) for splendid attire UV hardening liquid, it is characterized in that, also comprise:

Soft roller (3), described first die head (1) is for a side surface coating UV hardening liquid of the described dorsad soft roller (3) to the sheet of the roll surface through described soft roller (3) or membrane material (2);

Transparent roller (5), be close to described soft roller (3) and be arranged in parallel, have between described soft roller (3) and described transparent rod (5) and pass through and the gap extruded for sheet or membrane material (2), the roll surface of described transparent roller (5) is by ultraviolet transparent material;

One UV lamp (6), be arranged at described transparent roller (5) inner, and the direction of illumination of a described UV lamp (6) points to the surface of sheet or the membrane material (2) be coated on the roll surface of described transparent roller (5).

2. surperficial stiffened device according to claim 1, it is characterized in that, also comprise the gap adjusting mechanism (4) connecting described soft roller (3) and described transparent roller (5), for regulating the gap between described soft roller (3) and two roll surfaces of described transparent roller (5).

3. surperficial stiffened device according to claim 2, it is characterized in that, also comprise the second temperature control unit of the inside being arranged on inner the first temperature control unit (12) of described transparent roller (5) and being arranged at described soft roller (3), be respectively used to the temperature of the roll surface controlling described transparent roller (5) and described soft roller (3).

4. surperficial stiffened device according to claim 3, is characterized in that, described first temperature control unit (12) comprising:

Fluid line (121), is arranged on the inside of described transparent roller (5), passes into the liquid for regulating described transparent roller (5) temperature in described fluid line (121);

Heat carrier (122), be coated on described fluid line (121) outside and with the interior roll surface thermal contact conductance of described transparent roller (5).

5. surperficial stiffened device according to claim 1, is characterized in that, the angle between the plane be made up of the pivot center of described soft roller (3) and the pivot center of described transparent roller (5) and horizontal plane is 0 ° ~ 90 °.

6. surperficial stiffened device according to claim 1, is characterized in that, described transparent roller (5) is double-deck or laminated plastics structure.

7. the surperficial stiffened device according to any one of claim 1-6, is characterized in that, also comprise:

Mould release membrance transmission mechanism (8), for by mould release membrance (9) along described or the transmission path of membrane material (2) on described soft roller (3) and described transparent roller (5), and described mould release membrance (9) is fitted with the side surface contacted with described soft roller (3) of described or membrane material (2) and is contacted;

Second die head (7), for splendid attire UV hardening liquid, and described second die head (7) is to a side surface coating UV hardening liquid of the described dorsad soft roller (3) of the described mould release membrance (9) through described soft roller (3);

2nd UV lamp (10), be arranged at the outside of described transparent roller (5), and be coated on the surface of the mould release membrance (9) on the roll surface of described transparent roller (5) described in the sensing of the direction of illumination of described 2nd UV lamp (10).

8. the surface of a sheet or membrane material adds computer hardware; comprise the unwinding device (01) of sheet for placing rolling or membrane material (2), for drawing draw-gear (08) that described or membrane material (2) transmit and the diaphragm set composite (06) for pasting diaphragm on two surfaces of described or membrane material (2); it is characterized in that, also comprise:

Surperficial stiffened device (04) as described in any one of claim 1-7, described surperficial stiffened device (04) is arranged between described unwinding device (01) and draw-gear (08), and described diaphragm set composite (06) is arranged between described surperficial stiffened device (04) and described draw-gear (08);

Secondary UV lamp solidification equipment (07), comprise the 3rd UV lamp (071) and be close to the chill roll (072) and two deflector rolls (073) that are arranged in parallel, described chill roll (072) is positioned between two described deflector rolls (073), described 3rd UV lamp (071) is positioned at the outside of described chill roll (072), and its direction of illumination points to the surface of sheet or the membrane material (2) be coated on the roll surface of described chill roll (072); Described secondary UV lamp solidification equipment (07) is positioned between described diaphragm set composite (06) and described draw-gear (08).

9. surface according to claim 8 adds computer hardware, it is characterized in that, also comprises:

Storage device (03), be arranged between described unwinding device (01) and described surperficial stiffened device (04), comprise and being oppositely arranged and relatively-movable fixing row's roller (032) and mobile row's roller (031), described fixing row's roller (032) and described mobile row's roller (031) are provided with multiple roller, and described or membrane material (2) are alternately wound on the roller of described fixing row's roller (032) and described mobile row's roller (031).

10. a sheet or membrane material production line; it is characterized in that, the transmission direction along production line comprises plastic sheet or membrane material former, surperficial stiffened device (04) as described in any one of claim 1-7, diaphragm set composite (06), secondary UV lamp solidification equipment (07), draw-gear (08), wrap-up (09) and slicer (010) successively.