Production equipment and production process of pre-impregnated paper
阅读说明：本技术 一种预浸渍纸的生产设备及其生产工艺 (Production equipment and production process of pre-impregnated paper ) 是由 冯磊 李彦锋 薛志成 蒋斌 卢萌 卢智亮 于 2020-07-31 设计创作，主要内容包括：本发明提供了一种预浸渍纸的生产设备及其生产工艺,包括放料单元,放料单元末端连接印刷涂布单元,印刷涂布单元的上方设置有水平干燥烘箱,印刷涂布单元远离放料单元的一边设置有第一收料单元,靠近放料单元的一边设置有第二收料单元。通过一台设备即可完成三聚氰胺纸至少需要两台设备完成的从原纸到印刷再到浸胶、表涂的生产工艺,节省了用户的购机成本,节约厂房空间及人力成本；在印刷及底漆、面漆的涂布过程中均使用水性油墨,能够真正做到安全、环保、无污染,同时解决了三聚氰胺纸在使用时很难达到的各种弧形表面装饰、圆滑曲线装饰,板材周边无需再使用PVC封边条进行包覆,从而使贴合后的板材表面色彩一致。(The invention provides production equipment and a production process of prepreg paper, and the production equipment comprises a discharging unit, wherein the tail end of the discharging unit is connected with a printing and coating unit, a horizontal drying oven is arranged above the printing and coating unit, a first material receiving unit is arranged on one side of the printing and coating unit, which is far away from the discharging unit, and a second material receiving unit is arranged on one side of the printing and coating unit, which is close to the discharging unit. The production process from raw paper to printing, then gum dipping and surface coating of the melamine paper can be finished by one device, which is finished by at least two devices, so that the machine purchasing cost of a user is saved, and the plant space and the labor cost are saved; the water-based ink is used in the processes of printing, primer coating and finish coating, so that safety, environmental protection and no pollution can be really realized, various arc-shaped surface decorations and smooth curve decorations which are difficult to achieve when melamine paper is used are solved, the periphery of the plate is not required to be coated by PVC edge banding, and the surface color of the laminated plate is consistent.)
1. The production equipment of the prepreg paper is characterized by comprising a discharging unit (001), wherein the tail end of the discharging unit (001) is connected with a printing and coating unit, a horizontal drying oven is arranged above the printing and coating unit, a first material receiving unit (018) is arranged on one side, far away from the discharging unit, of the printing and coating unit, and a second material receiving unit (028) is arranged on one side, close to the discharging unit.
2. The apparatus for producing a prepreg according to claim 1, wherein a discharging cutter (002) is provided between the discharging unit (001) and the printing and coating unit, and a discharging tractor (003) is provided at an end of the discharging cutter (002).
3. A pre-impregnated paper production plant according to claim 1 wherein said print coating unit comprises a first color coating tension detection device (004), a first color print coating unit (005), a second color print unit (006), a third color print unit (007), a fourth color coating tension detection device (008), a fourth color print coating unit (009), a fifth color coating tension detection device (010), a fifth color print coating unit (011), a sixth coating tension detection device (013, a sixth color print coating unit (014) arranged in sequence, said fourth color print coating unit (009), said fifth color print coating unit (011) and said sixth color print coating unit (014) each being provided with a troweling roller device (012) on the other side of the web.
4. A pre-impregnated paper production apparatus according to claim 3 wherein a first material receiving horizontal straight line cutter (017) is provided between said sixth color print coating unit (014) and said first material receiving unit (018).
5. A production plant of pre-impregnated paper according to claim 1, characterized in that said horizontal drying oven comprises a fifth coating horizontal drying oven (020), a sixth coating horizontal drying oven (021) is arranged above the fifth coating horizontal drying oven (020), both the fifth coating horizontal drying oven (020) and the sixth coating horizontal drying oven (021) are connected with a hot air unit (029), one end of the horizontal drying oven close to the emptying unit (001) is provided with an air cooler device (024), and a traction device (023) is arranged between the fifth coating horizontal drying oven (020) and the sixth coating horizontal drying oven (021).
6. A production plant of pre-impregnated paper according to claim 5, characterized in that a single roll deviation corrector (022) is arranged above the cold air device (024), and a four roll deviation corrector (019) is arranged between the fifth coating horizontal drying oven (020) and the sixth coating horizontal drying oven (021) near the first receiving unit (018).
7. A production plant of pre-impregnated paper according to claim 6, characterized in that between said cold air device (024) and second receiving unit (028) are arranged in sequence a humidifying device (025), an S-shaped cooling roller and traction device (026) and a second receiving horizontal linear cutting device (027).
8. A production process of prepreg paper is characterized in that a production device of prepreg paper is adopted, five production processes are totally adopted based on the device, and the production process comprises the following specific steps:
the first process comprises the following steps: unreeling → printing → drying → first reeling;
and a second process: unreeling → coating → drying → printing → drying → first reeling;
and a third process: unreeling → coating → drying → printing → drying → coating → drying → first reeling;
and a fourth process: unreeling → printing → drying → primer coating → foaming, drying → top coating → foaming, drying → cooling → humidifying → second reeling;
and a fifth process: unreeling → coating → drying → printing → drying → primer coating → foaming, drying → top coating → foaming, drying → cooling → humidifying → second reeling.
Technical Field
The invention belongs to the technical field of manufacturing of printing equipment, and relates to production equipment and a production process of pre-impregnated paper.
Background
Nowadays, environmental problems are the key points of outstanding attention of all countries in the world, and in the face of the problems of forest resource shortage and increasingly worsened ecological environment, the environmental protection and forest protection become common knowledge of human beings. Global forest resources are deficient, particularly, natural rare wood becomes more and more precious after being cut down in large quantities, and countries around the world begin to increase the protection force and forbid excessive cutting, so that the rapid development of wood-based panel furniture is promoted.
The wood-based panel is a plate with various precious wood grain patterns, which is finally manufactured by pressing high-quality decorative paper printed with precious wood grains or other patterns on the surface of the wood-based panel by means of an adhesive. In China, the veneering decorative paper of the artificial board mainly takes melamine paper as a main material. The traditional melamine paper process flow at present is as follows: the melamine paper is printed by a special gravure printing machine, and then transferred to special impregnation equipment for impregnation and surface coating after the printing is finished, and then attached to the surface of a plate after the printing is finished, so that the melamine paper brings great convenience to home design and production due to the advantages of wear resistance, heat resistance, corrosion resistance, pollution resistance and the like, is widely applied, but still has many defects, such as: the equipment investment aspect is as follows: users need to purchase at least two devices to respectively complete the printing of the base paper, and the processes of gum dipping and surface coating are high in machine purchasing cost; safety and environmental protection: urea-formaldehyde resin and phenolic resin are needed during gum dipping and surface coating, and because the urea-formaldehyde resin and the phenolic resin contain lipid components, the urea-formaldehyde resin and the phenolic resin pollute the environment and have potential harm to users of equipment and bodies of end users; and thirdly, the material is suitable for being pasted: when in use, only a plate type is taken as a main part, and an arc-shaped cambered surface or a curve shape cannot be produced; fourthly, the requirement on the laminating equipment is as follows: the hot press has higher requirement during processing, and can only be flatly pressed when being attached to a plate; auxiliary material adaptability: the PVC edge banding equipped on the surface of the jointed board and the periphery of the board can not reach the same color of one hundred percent, and the color difference is larger and larger as the time is longer.
Disclosure of Invention
The invention aims to provide production equipment of pre-impregnated paper, which is suitable for printing and coating the pre-impregnated paper and is also suitable for decorative paper such as melamine paper, baoli paper, gorgeous paper and the like. The problems that printing equipment and gum dipping equipment in the prior art work separately, a large amount of space is occupied, and the working efficiency is low are solved.
The invention also aims to provide a production process of the prepreg paper.
The invention adopts the following technical means: the utility model provides a production facility of preimpregnated paper, includes the blowing unit, blowing unit end-to-end connection printing coating unit, and the top of printing coating unit is provided with horizontal drying oven, and printing coating unit is provided with first material receiving unit on the one side of keeping away from the blowing unit, is close to one side of blowing unit and is provided with second material receiving unit.
The invention is also characterized in that:
and a discharging cutter is arranged between the discharging unit and the printing and coating unit, and a discharging traction is arranged at the tail end of the discharging cutter.
The printing and coating unit comprises a first color coating tension detection device, a first color printing and coating unit, a second color printing unit, a third color printing unit and a fourth color coating tension detection device which are sequentially arranged, the fourth color printing and coating unit, a fifth color coating tension detection device, a fifth color printing and coating unit, a sixth coating tension detection device and a sixth color printing and coating unit are sequentially arranged, and the fourth color printing and coating unit, the fifth color printing and coating unit and the sixth color printing and coating unit are all provided with a floating roller device on the other side of the material film.
A first material receiving horizontal straight line cutting device is arranged between the sixth color printing and coating unit and the first material receiving unit.
The horizontal drying oven comprises a fifth coating horizontal drying oven, a sixth coating horizontal drying oven is arranged above the fifth coating horizontal drying oven, the fifth coating horizontal drying oven and the sixth coating horizontal drying oven are both connected with hot air units, one end of the horizontal drying oven, which is close to the material placing unit, is provided with an air cooling box device, and a traction device is arranged between the fifth coating horizontal drying oven and the sixth coating horizontal drying oven.
A single-roller deviation correcting device is arranged above the cold air device, and a four-roller deviation correcting device is arranged at one end, close to the first material receiving unit, between the fifth coating horizontal drying oven and the sixth coating horizontal drying oven.
A humidifying device, an S-shaped cooling roller, a traction device and a second material receiving horizontal straight line cutting device are sequentially arranged between the cold air device and the second material receiving unit.
A production process of pre-impregnated paper adopts a production device of pre-impregnated paper, and has five production processes based on the device, and the production process comprises the following specific steps:
the first process comprises the following steps: unreeling → printing → drying → first reeling;
and a second process: unreeling → coating → drying → printing → drying → first reeling;
and a third process: unreeling → coating → drying → printing → drying → coating → drying → first reeling;
and a fourth process: unreeling → printing → drying → primer coating → foaming, drying → top coating → foaming, drying → cooling → humidifying → second reeling;
and a fifth process: unreeling → coating → drying → printing → drying → primer coating → foaming, drying → top coating → foaming, drying → cooling → humidifying → second reeling.
The invention has the beneficial effects that:
the pre-impregnated paper suitable for the production equipment can complete the production process of melamine paper from raw paper to printing, then gum dipping and surface coating which is completed by at least two equipment through one equipment, thereby saving the machine purchasing cost of users and the space and labor cost of a factory building; the water-based ink is used in the processes of printing, coating of the primer and the finish, so that the safety, environmental protection and no pollution can be really realized, and the health of equipment users and final users is not damaged; the produced finished product can be divided into flat press type, coating type and the like in subsequent use, can be veneered by a common press, does not need high-temperature and high-pressure laminating equipment, can be cold pressed or hot pressed, can be rolled simultaneously, is convenient for users to use, solves various arc surface decorations and smooth curve decorations which are difficult to achieve when melamine paper is used, and ensures that the surface color of the laminated plate is consistent without coating by using PVC edge banding strips at the periphery of the plate.
Drawings
FIG. 1 is a front view of a pre-impregnated paper manufacturing apparatus;
FIG. 2 is a side view of an apparatus for producing pre-impregnated paper.
In the figure, 001, a discharging unit, 002, a discharging cutting, 003, a discharging drawing, 004, a first color coating tension detecting device, 005, a first color printing and coating unit, 006, a second color printing unit, 007, a third color printing unit, 008, a fourth color coating tension detecting device, 009, a fourth color printing and coating unit, 010, a fifth color coating tension detecting device, 011, a fifth color printing and coating unit, 012, a smoothing roller device, 013, a sixth color coating tension detecting device, 014, a sixth color printing and coating unit, 015, a smoothing roller device, 016, a first receiving drawing, 017, a first receiving horizontal linear receiving device, 018, a first receiving, 019, a four roller rectifying device, 020, a fifth receiving horizontal drying oven, 021, a sixth coating horizontal drying oven, 022, a single roller rectifying device, 023, a cold air box drawing device, 024, 025. the device comprises a humidifying device, 026 an S-shaped cooling roller and a traction device, 027 a second material receiving horizontal linear cutting device, 028 a second material receiving unit, 029 a hot air unit and 030 a walking board appearance.
Detailed Description
The invention is described in detail below with reference to the following figures and detailed description:
a production device of pre-impregnated paper is shown in figure 1 and comprises a
A discharging
The printing and coating unit comprises a first color coating
A first material receiving horizontal straight
The horizontal drying oven comprises a fifth coating horizontal drying oven 020, a sixth coating horizontal drying oven 021 is arranged above the fifth coating horizontal drying oven 020, the fifth coating horizontal drying oven 020 and the sixth coating horizontal drying oven 021 are both connected with a hot air unit 029, as shown in fig. 2, an
A single-roller deviation rectifying device 022 is arranged above the
A
A production process of pre-impregnated paper adopts a production device of pre-impregnated paper, and has five production processes based on the device, and the production process comprises the following specific steps:
the first process comprises the following steps: unreeling → printing → drying → first reeling
And a second process: unreeling → coating → drying → printing → drying → first reeling
And a third process: unreeling → coating → drying → printing → drying → coating → drying → first reeling
And a fourth process: unreeling → printing → drying → primer coating → foaming, drying (curing) → top coat coating → foaming, drying (curing) → cooling (air cooling + water cooling) → humidifying → second reeling
And a fifth process: unreeling → coating → drying → printing → drying → primer coating → foaming, drying (curing) → top coating → foaming, drying (curing) → cooling (air cooling + water cooling)
→ humidification → second rolling
Detailed description of the process
The first process comprises the following steps:
in the figure 1, prepreg paper is placed in 001 discharging materials, is dragged by 002 discharging materials to enter 004 to complete first color printing, then enters a 005 drying (curing) oven to be dried (cured), and then sequentially enters 006, 008, 010 and 012 to complete second color to sixth color printing and drying (curing), and finally enters a 014 first material receiving unit after being dragged by 013 first material receiving units to complete rewinding. (Note: this process is a process for printing six colors, and any color from one color to six colors can be printed according to the color of the product)
And a second process:
in the figure 1, prepreg paper is placed in 001 discharging materials, is dragged by 002 discharging materials to enter 004 to complete first color coating printing, then enters a 005 drying (curing) oven to be dried (cured), and then sequentially enters 006, 008, 010 and 012 to complete second color to sixth color printing and to be dried (cured) after passing through a 003 coating tension detection device, and finally enters a 014 first material receiving unit after being dragged by 013 first material receiving units to complete rewinding. (Note: the process is a process for finishing the first color prime coat or the back coat and the five-color printing, and can finish the printing of any color from the first color prime coat or the back coat and the printing from the first color to the five colors according to the color of the product)
And a third process:
in the figure 1, prepreg paper is placed in 001 discharging materials, is dragged by 002 discharging materials to enter 004 to complete first-color coating printing, then enters a 005 drying (curing) oven to be dried (cured), and then sequentially enters 006, 008 and 010 to complete second-color to fifth-color printing and then is dried (cured) after passing through a 003 coating tension detection device, and finally enters a 014 first material receiving unit after being dragged by 013 first material receiving units to complete rewinding. (Note: the process is a process for finishing the first color prime coat or back coat + four color printing + last color prime coat or back coat, and the printing of any color of the first color prime coat or back coat + one to four color printing + last color prime coat or back coat can be finished according to the different colors of the product)
And a fourth process:
in the process, a certain amount of foaming agent is usually required to be added into ink or primer and finish glue, and the final product can show an intuitive concave-convex effect.
In the figure 1, prepreg paper is placed in 001 discharging material, is dragged by 002 discharging material to enter 004 to complete first color printing, then enters a 005 drying (curing) oven to be dried (cured), then sequentially enters 006 and 008 to complete second color to fourth color printing and drying (curing), then passes through a 009 coating tension detection device, enters a 010 printing or priming coating unit to be subjected to primer coating, then enters a 015 horizontal foaming and drying (curing) oven to be subjected to primer drying (curing), then passes through a 011 coating tension detection device to enter a 012 printing or top coating unit to be subjected to top coating, then enters a 016 horizontal foaming and drying (curing) oven to be subjected to top coating drying (curing), and then passes through a 017 air cooling device, a 019S-type cooling roller and a traction device to cool the printed product after coming out of 016, and then passes through a 018 humidifying device to humidify the printed product, the flexibility of the base paper is recovered, and then the base paper enters the 020 second material receiving unit to complete rewinding.
And finally, after being dragged by 013 first material receiving units, the materials enter 014 first material receiving units to complete rewinding. (Note: the process is a process for finishing four-color printing, primer coating and finish coating, and can finish any color from one color to four-color printing, primer coating and finish coating according to different colors of products)
And a fifth process:
in the process, a certain amount of foaming agent is usually required to be added into ink or primer and finish glue, and the final product can show an intuitive concave-convex effect.
In the figure 1, prepreg paper is placed in 001 discharging material, is dragged by 002 discharging material to enter 004 to complete first color coating printing, then enters a 005 drying (curing) oven to be dried (cured), passes through a 003 coating tension detection device after being completed, sequentially enters 006 and 008 to complete second color to fourth color printing and drying (curing), passes through a 009 coating tension detection device after being completed, enters a 010 printing or priming coating unit to be primer coated, then enters a 015 horizontal foaming and drying (curing) oven to be primer dried (cured), passes through a 011 coating tension detection device after being completed, enters a 012 printing or top coating unit to be finish coated, enters a 016 horizontal foaming and drying (curing) oven to be finish dried (cured), is discharged from 016 and then is cooled by passing through a 017 air cooling device, a 019S-shaped cooling roller and a traction device respectively, and then passes through a 018 humidifying device to be humidified, the flexibility of the base paper is recovered, and then the base paper enters the 020 second material receiving unit to complete rewinding. (Note: the process is a process for finishing the first color primary coating or back coating + three-color printing + primer coating + finish coating, and the printing of any color of the first color primary coating or back coating + one-color to three-color printing + primer coating + finish coating can be finished according to the color of the product)
In the figure 1, prepreg paper is arranged on a safety chuck in 001 through an air expansion shaft, the 001 adopts a disc type or tower type double-station active discharging mode, when the prepreg paper on one station in the 001 is about to be discharged, an operator presses a ready material receiving button, 002 starts to be lifted to a material receiving position under the pushing of an air cylinder, a revolving frame in the 001 starts to rotate and rotates to a preset material receiving position, the revolving frame stops rotating, a new material starts to be driven by a pre-driving motor at the moment, when the speed is synchronous with the speed of the whole machine, the operator presses the material receiving button, a cutting press roller extends out, a cutter extends out after a few seconds to complete material receiving, the new material is pulled through 003 discharging and then enters 005 to complete first color printing and drying (when the 005 completes a coating function, the 004 is needed before entering 006 to complete second color printing), the 006 is sequentially enters, second color printing and drying is sequentially performed, and the third color printing is performed, The third color is printed and dried, then the fourth color is printed and dried in 009 (008 is needed before the fourth color is coated in 009 when the coating function is completed in 009), and the following two processes are used when the fifth color is printed or coated in 011 after the coating function is completed:
(1) when 011 finishes a primer glue coating function, 010 needs to be carried out before the 011 finishes the fifth color coating, after the coating is finished, the material is dried by a local vertical oven and then enters a 020 fifth coating horizontal drying oven for curing, 020 generally consists of 3-5 sections, a 023 traction device is designed at a discharge port of a fourth section oven, the material after coming out from 023 enters a 019 four-roller deviation correcting device through a paper guide roller (019 has the function of ensuring that the material entering a 014 sixth color printing and coating unit does not generate transverse deviation), after entering 013, the material next enters 014 to finish the coating of the finish paint, after the coating is finished, the material is dried by the local vertical oven and then enters a 021 sixth coating horizontal drying oven for curing, 021 generally consists of 4-6 sections, and a 022 single-roller deviation correcting device (022 has the function of ensuring that the material coming out from 021 does not generate transverse deviation before entering the material collection) is designed at the discharge port of the fifth section oven, after the prepreg paper is discharged from a 022 box, the prepreg paper enters a 024 cold air box device, primary cooling treatment is carried out on the printed matter, after the primary cooling treatment is finished, the printed matter enters a 026S-type cooling roller to be subjected to secondary cooling and shaping treatment, because the prepreg paper is subjected to drying treatment by a plurality of drying ovens, the contained water is almost completely volatilized, the prepreg paper becomes very fragile at the moment, in order to recover the original flexibility of the prepreg paper, a 025 humidifying device is additionally arranged after the prepreg paper is discharged from a 026 box, the prepreg paper is subjected to humidifying treatment and finally enters a 028 winding unit to finish rewinding, and the 028 winding unit adopts a disc type or tower type double.
(2) When 011 finishes printing and common coating functions, the printing or coating is finished and then enters a vertical oven for drying, and then enters 014 to finish sixth color printing or coating (when 014 finishes the coating function, the 014 needs a 013 device before entering 014), and then enters 018 rolling unit through 016 to finish rewinding, wherein the 018 rolling unit adopts a disc or tower type double-station active material receiving mode.
012. 015 the floating roller device, this organization is applied to the floating after the prime coat of the preimpregnated paper and finish paint coating unit is rubberized, because the prime coat of the preimpregnated paper and method that the network line roll of the finish paint is coated, this organization must use while producing the high gloss plane product, if do not use the floating roller device after coating, the product produced can't meet the requirement of the high gloss, therefore the use of this organization plays the vital role in producing the luminance of the high gloss plane product, if produce the products of the stereoscopic effect or inferior gloss product, this organization can't be used.
(2)004 first color coating tension detecting means used when the first color is coated.
(3)008 fourth color coating tension detecting means used when coating is performed for the fourth color.
(4)010 fifth color coating tension detecting means, which is used when coating of the fifth color is performed.
(5)013 sixth color coating tension detecting device, which is used when coating of the sixth color is performed.
In order to meet the requirements of the process, the electrical control needs to be optimized and controlled to smoothly complete the control target.
1. Complete machine tension control
1) Feeding to a first receiving material, and adopting eight-section tension control;
(a)001 discharging unit to 003 discharging traction, (b)003 discharging traction to 005 first color printing, coating unit, (c)005 first color printing, coating unit to 006 second color printing unit, (d)007 second color printing unit to 009 fourth color printing, coating unit, (e)009 fourth color printing, coating unit to 011 fifth color printing, coating unit, (f)011 fifth color printing, coating unit to 014 sixth color printing, coating unit, (g)014 sixth color printing, coating unit to 016 first material receiving traction, and (h)016 first material receiving traction to 018 first material receiving.
2) Nine sections of tension control are adopted when the materials are fed to the second material receiving;
(b)001 discharging unit to 003 discharging drawing, (b)003 discharging drawing to 005 first color printing, coating unit, (c)005 first color printing, coating unit to 006 second color printing unit, (d)007 third color printing unit to 009 fourth color printing, coating unit, (e)009 fourth color printing, coating unit to 011 fifth color printing, coating unit, (f)011 fifth color printing, coating unit to 020 fifth coating level drying oven, (g)020 fifth coating level drying oven to 014 sixth color printing, coating unit, (h)014 sixth color printing, coating unit to 026S type cooling roller and drawing device, (i)026S type cooling roller and drawing device to 028 second discharging unit.
2. One-release two-receive structure control
In order to meet corresponding process requirements, the whole machine adopts a one-release two-receive structure, and a control system is required to realize the control of the whole machine safely and reliably. Two receipts material during operation can not interfere each other, cause the confusion. The switching is stable and reliable, and no malfunction is generated. The requirement for control is higher and more accurate, and therefore the vector control with PG is adopted.
3. Horizontal oven tension control
The horizontal oven of the machine is long, and the paper after printing can be dried and the subsequent process requirements can be met only by keeping proper tension in the oven. Meanwhile, the requirement on tension control is high, and the paper can deform in the heating process, so that the length of the paper changes; therefore, the tension in the oven is ensured to be stable while the drying is ensured.
4. Speed regulation of smoothing roller
The leveling roller is an important part for producing high-gloss plane products, is extremely important to control, can keep up with the speed of a machine, and also can meet the process requirement of changing at any time in the production process for speed regulation. Therefore, the frequency conversion speed regulation technology is adopted, and the precision control meets the production requirement
5. The paper surface temperature detection adopts an infrared detection mode
The non-contact temperature measurement mode can completely protect the printing surface and provide accurate temperature. The control is more accurate and convenient, and the actual production requirements are met
6. Double S chill roll precision control
The double-S cooling roller control has higher requirements and finer control compared with the common single-roller control. Only the careful selection of the control mode is needed to set the appropriate parameters. The stable cooling of the printed product can be ensured to meet the technological requirements.
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