CN107524042B - Online composite thermal transfer paper forming process - Google Patents

Abstract

The invention provides an on-line composite thermal transfer paper forming process, which aims to solve the technical problems of poor uniformity and small tightness of raw paper of thermal transfer paper and comprises a feeding process, a filtering process, an extruding process, a water absorbing process, a stripping process, a cutting process and an outputting process.

Description

Online composite thermal transfer paper forming process

Technical Field

The invention relates to the technical field of production and manufacture of base paper of thermal transfer paper, in particular to an on-line composite thermal transfer paper forming process.

Background

Thermal transfer is an emerging printing process, introduced from abroad. The heat transfer is also called thermal sublimation, and is a special process for printing any pictures such as portrait, landscape and the like on heat transfer paper by using heat transfer ink, heating the pictures to a certain temperature within a few minutes by corresponding heat transfer equipment, and transferring the vivid image colors on the paper to materials such as porcelain cups, porcelain plates, clothes, metals and the like. The thermal transfer paper is a carrier for transferring images, and is important for color brightness and image fidelity of the images after transfer.

However, the quality of the current thermal transfer paper base paper is poor, and the following points are mainly reflected: the tensile strength and the heat resistance are lower; the three differences are large, and the evenness is poor; the base paper can not meet the coating requirement of the thermal transfer paper, and the base paper produced in batches has large quality difference, uneven quality and poor stability; the base paper needs to be coated with special coating, the ink absorption of the coating is poor, the ink drop absorption speed is low, and the images have obvious ink piling and color bleeding after printing is finished; the produced base paper has small tightness and large air permeability, is not uniform enough when absorbing paint, and has wrinkling phenomenon on the paper surface when printing.

Disclosure of Invention

Aiming at the problems, the invention provides an on-line composite thermal transfer paper forming process, which utilizes a rotary chain to drive an extrusion assembly to respectively realize the filtering work before the pulp is spread on a forming net and the extrusion dehydration work after the pulp is spread on the forming net in the filtering process and the extrusion process, solves the technical problems of poor evenness and small tightness of the thermal transfer paper base paper and realizes the improvement of the quality of the thermal transfer paper base paper.

In order to achieve the purpose, the invention provides the following technical scheme:

an on-line composite thermal transfer paper forming process, comprising:

step one, a feeding procedure, namely pumping slurry in a slurry box through a slurry pump, conveying the slurry to a feeding pipe along a pipeline, and spraying the slurry out of a feeding part of the feeding pipe;

step two, a filtering procedure, wherein the extrusion assembly is driven by a rotary chain to be conveyed to a filtering station below the feeding pipe, slurry sprayed by the feeding pipe is filtered, the filtered slurry is flatly laid on a forming net and is driven by the forming net to be conveyed along the same direction as the rotary direction of the rotary chain, and the conveying speed of the extrusion assembly is consistent with the rotary speed of the rotary chain;

step three, in the extrusion process, the extrusion assembly is driven by a rotary chain to be conveyed to an extrusion station at the rear side of the filtering station, the filtered slurry is synchronously conveyed to the extrusion station by the forming net, and the extrusion assembly descends downwards to extrude the slurry on the forming net after being limited longitudinally and vertically by the limiting assembly, so that the slurry is dehydrated;

step four, a water absorption process, namely, continuously conveying the extruded and dehydrated slurry to a water absorption station at the rear side of the extrusion station by a forming mesh belt, absorbing water on the slurry by a water absorption device, separating the extrusion assembly from the limit of the limit assembly, and rotating the extrusion assembly by a rotating chain;

step five, a stripping process, namely forming the pulp subjected to the water absorption process into raw paper, conveying the raw paper to a stripping station positioned at the rear side of the water absorption station under the driving of a forming net, and stripping the raw paper by a paper stripping knife to separate the raw paper from the forming net;

step six, a cutting procedure, namely conveying the peeled base paper to a cutting station positioned at the rear side of the peeling station under the driving of a forming net, and driving a cutter to vertically cut downwards by an air cylinder;

and step seven, an output process, namely outputting the cut base paper from the cutting station under the driving of a forming net.

As an improvement, in the first step, the second step, the third step and the fourth step, the plurality of extrusion assemblies positioned at the lower part of the rotary chain are arranged at equal intervals along the rotary chain, and the front edge and the rear edge of the extrusion assemblies are in butt joint.

In the second step and the third step, when any one of the extrusion assemblies filters the slurry sprayed from the feeding pipe, the subsequent extrusion assembly synchronously extrudes and dewaters the slurry on the forming wire.

As an improvement, in the second step, the first springs elastically press against the first extrusion plates and the second extrusion plates on the extrusion assembly, so that the sawteeth on the first extrusion plates are matched to form the filtering holes.

As an improvement, in the second step, a slurry recycling device is arranged below the filtering station, and the slurry recycling device collects and recycles the slurry flowing out of the forming wire.

In the third step, the arc-shaped extrusion block extrudes the first spring, so that the sawteeth on the first extrusion plates and the second extrusion plates on the extrusion assembly penetrate through and are longitudinally inserted and matched to form a complete direction plate.

As an improvement, in the third step, the limiting plate extrudes the second spring, so that the whole extrusion assembly moves downwards.

As an improvement, in the third step, a waste water recovery device is arranged below the extrusion station, and the waste water recovery device collects and then uniformly treats the waste water extruded from the sizing agent on the forming screen.

In the fifth step, a paper stripping knife is fixedly arranged, and the power for driving the base paper to be conveyed by the forming net is used as the main power for driving the base paper to be separated.

In the sixth step, the cylinder synchronous belt dynamic pressure paper board is used for positioning the base paper at the front end and the rear end of the cutting station.

The invention has the beneficial effects that:

(1) according to the invention, the first extrusion plate and the second extrusion plate are staggered to form the filter screen for filtering the pulp conveyed to the forming area, so that crude fibers in the pulp are filtered, the uniformity of the manufactured base paper is better, meanwhile, the first extrusion plate and the second extrusion plate are extruded to form an integral extrusion plate for extruding the pulp on the forming area, so that the pulp is dewatered and compacted, the tightness of the base paper is improved, and the quality of the base paper is improved;

(2) according to the invention, the extrusion assemblies are driven to rotate by the rotating chain, so that the continuous production of the base paper on the forming area is realized, and because two adjacent groups of extrusion assemblies sequentially extrude the pulp on the forming area, a boundary is formed in the middle of the extrusion assemblies, so that accurate reference is provided in the subsequent base paper cutting process, and the consistency of the base paper is ensured;

(3) in the process of cutting the base paper along the dividing line by driving the cutting knife by using the cylinder, the base paper on the forming area is pressed forwards and backwards at the instant of cutting by synchronously using the paper pressing plates arranged on two sides of the cylinder, so that the base paper is prevented from being torn by the cutting knife in the cutting process, and the notches of the base paper are not consistent;

in conclusion, the invention has the advantages of ingenious structure, high quality of the produced and manufactured base paper, smooth cutting of the base paper and the like, and is particularly suitable for the technical field of production and manufacturing of thermal transfer paper.

Drawings

FIG. 1 is a schematic view of the process of the present invention;

FIG. 2 is a schematic front view of the present invention;

FIG. 3 is a schematic perspective view of a feeding tube according to the present invention;

FIG. 4 is a schematic perspective view of a portion of the extrusion mechanism of the present invention;

FIG. 5 is a schematic view of the extrusion mechanism according to the present invention;

FIG. 6 is a schematic view of a portion of the connecting assembly of the present invention;

FIG. 7 is a perspective view of the extrusion assembly of the present invention;

FIG. 8 is a schematic view of a combination of a first pressing plate and a second pressing plate according to the present invention;

FIG. 9 is a schematic perspective view of a limiting plate portion of the present invention;

fig. 10 is a schematic perspective view of a pressure bearing plate according to the present invention;

FIG. 11 is a schematic perspective view of the suction box of the present invention;

FIG. 12 is a schematic perspective view of a cutting device according to the present invention;

FIG. 13 is a schematic cross-sectional view of a cutting device according to the present invention;

FIG. 14 is an enlarged view of the structure at A in FIG. 12;

FIG. 15 is a schematic view of the recycling apparatus and wastewater recycling apparatus according to the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Example 1:

as shown in fig. 1, an in-line composite thermal transfer paper forming process includes:

step one, a feeding process, in which slurry in a slurry tank 302 is pumped by a slurry pump 303, conveyed to a feeding pipe 301 along a pipeline, and sprayed out from a feeding part 3012 of the feeding pipe 301;

step two, in the filtering process, the extrusion assembly 312 is driven by the rotary chain 311 to be conveyed to a filtering station below the feeding pipe 301, slurry sprayed by the feeding pipe 301 is filtered, the filtered slurry is flatly laid on the forming net 2 and is driven by the forming net 2 to be conveyed along the same direction as the rotary direction of the rotary chain 311, and the conveying speed of the extrusion assembly is consistent with the rotary speed of the rotary chain 311;

step three, in the extrusion process, the extrusion assembly 312 is driven by the rotary chain 311 to be conveyed to the extrusion station at the rear side of the filtering station, the filtered slurry is synchronously conveyed to the extrusion station by the forming net 2, and the extrusion assembly 312 descends downwards to extrude the slurry on the forming net 2 after being limited longitudinally and vertically by the limiting assembly 314, so that the slurry is dehydrated;

step four, a water absorption process, namely, the pulp after extrusion dehydration is continuously conveyed to a water absorption station at the rear side of the extrusion station by the driving of the forming net 2, the water absorption device 4 absorbs water from the pulp, and the extrusion component 312 is separated from the limit of the limit component 314 and is driven by the rotary chain 311 to rotate;

step five, a stripping process, namely forming the pulp subjected to the water absorption process into base paper, conveying the base paper to a stripping station positioned at the rear side of the water absorption station under the driving of a forming net 2, and stripping the base paper by a paper stripping knife 56 to separate the base paper from the forming net 2;

step six, a cutting procedure, namely conveying the peeled base paper to a cutting station positioned at the rear side of the peeling station under the driving of a forming net 2, and driving a cutter 52 to vertically cut downwards by an air cylinder 51;

and step seven, an output process, namely outputting the cut base paper from the cutting station under the driving of the forming net 2.

In the first, second, third and fourth steps, the plurality of extrusion assemblies 312 located at the lower portion of the revolving chain 311 are all disposed at equal intervals along the revolving chain 311, and the front and rear edges thereof are butted and connected.

It should be noted that in the second and third steps, when any one of the press units 312 filters the slurry ejected from the supply pipe 301, the subsequent press unit 312 simultaneously presses and dewaters the slurry on the forming wire 2.

In the second step, as a preferred embodiment, the first springs 3124 elastically interfere with the first pressure plates 3122 and the second pressure plates 3123 of the pressure assembly 312, so that the saw teeth thereon cooperate to form the filtering holes.

Furthermore, in the second step, a slurry recycling device 7 is arranged below the filtering station, and the slurry recycling device 7 collects and recycles the slurry flowing out of the forming wire 2.

In the third step, the first spring 3124 is pressed by the arc-shaped pressing block 3144, so that the plurality of first pressing plates 3122 on the pressing assembly 312 and the saw teeth on the plurality of second pressing plates 3123 penetrate and are longitudinally inserted and matched to form a complete direction plate.

Further, in the third step, the second spring 3135 is pressed by the stopper plate 3141, so that the pressing assembly 312 moves downward as a whole.

It is noted that in the third step, a waste water recovery device 8 is arranged below the extrusion station, and the waste water recovery device 8 collects and then uniformly treats the waste water extruded from the forming wire 2.

In a preferred embodiment, in the fifth step, the paper stripping knife 56 is fixedly arranged, and the power for driving the forming wire 2 to convey the base paper is used as the main power to drive the base paper to separate.

In the sixth step, the air cylinder 51 holds the paper pressing plate 54 in time to position the base paper at the front and rear ends of the cutting station.

Example 2:

as shown in fig. 2, an in-line composite papermaking forming system includes a machine frame 1, and further includes:

a forming wire 2, wherein the forming wire 2 is arranged in the middle of the frame 1 in a rotating mode to form an endless wire loop, and a forming area 21 at the upper part of the forming wire 2 is used for producing and processing heat transfer paper;

the feeding extrusion device 3 is fixedly arranged on the rack 1, and the feeding extrusion device 3 is used for supplying slurry to the input end of the forming area 21 and extruding and dehydrating the slurry on the forming area 21;

a water suction device 4, which is located at the rear side of the feed extrusion device 3, and the tail end of the water suction device 4 is located in the endless wire loop of the forming wire 2, and which sucks water from the slurry on the forming area 21; and

and the cutting device 5 is fixedly arranged on the frame 1, is positioned above the output end of the forming area 21 and is used for cutting the heat transfer paper 6 formed in the forming area 21.

It should be noted that, the forming net 2 is driven by the first driving motor 20 to perform rotary conveying along the frame 1, an endless net ring is formed by the conveying roller and the guide roller, and during the conveying process, the upper region of the forming net 2 is subjected to production processing of thermal transfer paper base paper, i.e. a forming area 21; the feeding and extruding device 3 conveys the pulp to the input end of the forming area 21, and in the pulp conveying process, the feeding and extruding device 3 filters the pulp to filter out coarse fibers from the pulp, so that the uniformity of the base paper is improved; then, the sizing agent on the forming area 21 is extruded by the feeding and extruding device 3, so that the sizing agent is flatly laid on the forming area 21, partial moisture in the sizing agent is removed, then the forming area 21 is conveyed to the water absorption device 4, the last moisture in the sizing agent is absorbed by the water absorption device 4 to form base paper, and finally the formed base paper is cut by the cutting device 5.

As a preferred embodiment, as shown in fig. 2, the feed extrusion device 3 comprises:

the feeding mechanism 30 is arranged at the lower part of the input end of the forming area 21, and the feeding pipes 301 at the tail ends of the feeding mechanism 30 are symmetrically arranged at two sides of the input end of the forming area 21 and are positioned at the upper end of the forming area 21; and

and the extruding mechanism 31 is arranged at the top of the frame 1 in a rotating mode and is positioned above the input end of the forming area 21, and the extruding mechanism 31 is used for extruding and dewatering the pulp on the forming area 21.

As shown in fig. 2 and fig. 3, the feeding pipe 301 is L-shaped, and includes a feeding portion 3012 disposed vertically on a supporting portion 3011 and disposed longitudinally, and a plurality of feeding holes 3013 are disposed at equal intervals at a position where the feeding portion 3012 covers the forming area 21.

It should be noted that the feeding mechanism 30 further includes a slurry tank 302 and a slurry pump 303, the slurry tank 302 is disposed at one side of the rack 1, and the feeding pipe 301 is communicated with the slurry tank 302 through a pipeline and is pumped and fed by the slurry pump 303 on the slurry tank 302.

It should be noted that, when the feeding mechanism 30 feeds, the slurry passes through the squeezing mechanism 31, and coarse fibers in the slurry are filtered and trapped by the squeezing mechanism 31.

As shown in fig. 4 and 5, as a preferred embodiment, the pressing mechanism 31 includes:

the rotary chains 311 are symmetrically arranged at the top of the rack 1, are positioned above the forming area 21 and are arranged in a rotary manner;

the extrusion components 312 are erected on the rotary chain 311 at equal intervals and are conveyed along with the rotary chain 311 in a rotary manner;

the connecting components 313 are uniformly arranged corresponding to the extrusion components 312 and arranged between the rotary chain 311 and the extrusion components 312, the upper ends of the connecting components 313 are hinged with the rotary chain 311, and the lower ends of the connecting components 313 are inserted into the middle of the extrusion components 312 and are connected in a matched manner; and

and the limiting assembly 314 is arranged on the rack 1, and is positioned below the middle part of the rotary chain 311.

As shown in fig. 7, 8 and 10, further, the pressing assembly 312 includes:

a pressing frame 3121, wherein the pressing frame 3121 is arranged in a shape of a Chinese character 'tian', is positioned below the connecting component 313, is inserted into and engaged with the lower end of the connecting component 313 at the middle part thereof, and has a width direction consistent with the conveying direction of the forming area 21;

the first extrusion plates 3122 are arranged in a double-sided zigzag manner, and are arranged equidistantly along the length direction of the extrusion frame 3121; and both ends of the extrusion frame are slidably sleeved with both ends of the extrusion frame 3121 in the width direction;

the second extrusion plates 3123 are all provided with single-sided saw teeth, and are symmetrically provided on both sides of the first extrusion plate 3122, and the saw teeth thereon are all in penetrating fit with the saw teeth of the first extrusion plate 3122, and both ends of the second extrusion plates 3123 are all in sliding sleeve joint with both ends of the extrusion frame 3121 in the width direction;

a plurality of first springs 3124, wherein the first springs 3124 are disposed between the first pressing plate 3122 and the second pressing plate 3123 in an abutting manner, and are located at both ends of the pressing frame 3121 in the width direction;

the extrusion parts 3125 are symmetrically arranged at two ends of the length direction of the extrusion frame 3121, are fixedly connected with the second extrusion plate 3123, and are correspondingly matched with the limiting component 314, so that the first extrusion plate 3122 and the second extrusion plate 3123 are inserted and matched to form a whole; and

the bearing plate 3126, the bearing plate 3126 sets up in the below in the middle part of gyration chain 311, its with frame 1 fixed connection, and a plurality of water holes 3127 of crossing have seted up the equidistance on it.

Wherein, a plurality of rollers 3128 are equidistantly arranged on one side of the extrusion 3125 corresponding to the limiting component 314.

As shown in fig. 6, further, the connection assembly 313 includes:

a connecting rod 3131, both ends of the connecting rod 3131 being fixedly connected to the rotating chains 311 at both sides;

a hinge rod 3132, the hinge rod 3132 being vertically disposed, and an upper end thereof being hinged to the connection rod 3131;

a lower limiting ring 3133, wherein the lower limiting ring 3133 is located below the hinge portion between the hinge rod 3132 and the connecting rod 3131, and is correspondingly matched with the limiting component 314, so that the pressing component 312 does not shake during pressing operation; and

a sliding sleeve 3134, the upper end of the sliding sleeve 3134 is slidably sleeved on the lower end of the hinge rod 3132, a second spring 3135 is disposed between the sliding sleeve 3134 and the hinge rod 3132 in an abutting manner, and the lower end of the sliding sleeve 3134 is inserted into and connected with the middle of the pressing frame 3121 in a matching manner.

As shown in fig. 5 and 9, in more detail, the limiting component 314 includes:

a limit plate 3141, wherein the limit plate 3141 is disposed right above the pressure-bearing plate 3126, two ends of the limit plate 3141 are fixedly connected to the frame 1, a straight groove 3142 is formed in the middle of the limit plate 3141, triangular plates 3143 are symmetrically disposed on two sides of the straight groove 3142, and the triangular plates 3143 are correspondingly matched with the upper end surface of the sliding sleeve 3134; and

and the arc-shaped extrusion blocks 3144 are positioned at two longitudinal sides right above the pressure bearing plate 3126, are fixedly connected with the rack 1, are provided with smooth bulges at the middle part, and are correspondingly matched with the extrusion member 3125.

It should be noted that the revolving chain 311 is driven by the second driving motor 310 to revolve, and the pressing component 312 is erected on the revolving chain 311 through the connecting component 313 and revolves with the revolving chain 311.

It is further noted that, during the rotary conveying process, when the pressing assembly 312 is conveyed to the lower side of the feeding pipe 301, the first spring 3124 opens the first pressing plate 3122 and the second pressing plate 3123, the saw teeth thereon combine with each other to form a screen, and the pulp output from the feeding pipe 301 is screened, and coarse fibers are screened out by the screen and retained on the screen formed by combining the first pressing plate 3122 and the second pressing plate 3123, wherein the saw teeth of the first pressing plate 3122 and the second pressing plate 3123 may have any shape of a triangle, a square, and the like.

More specifically, when the pressing assembly 312 is conveyed to the position-limiting assembly 314, the pressing member 3125 is in pressing fit with the arc-shaped pressing block 3144, so that the first spring 3124 is compressed, the saw teeth on the first pressing plate 3122 and the second pressing plate 3123 are in penetrating fit to form a complete pressing plate, and simultaneously, the upper end surface of the sliding sleeve 3134 is correspondingly matched with the position-limiting plate 3141, the triangular plate 3143 compresses the second spring 3135, the sliding sleeve 3134 descends, the complete pressing plate formed by the first pressing plate 3122 and the second pressing plate 3123 descends to cooperate with the pressure-bearing plate 3126 to press the slurry on the forming area 21, so that the slurry is uniformly spread on the forming area 21, and part of the moisture in the slurry is removed.

It is noted that the linear groove 3142 in the retainer plate 3141 is to facilitate passage of the compression assembly 312.

It should be noted that the adjacent press units 312 form a distinct boundary line on the forming section 21 when the stock on the forming section 21 is dewatered by pressing, and the boundary line provides a reference for subsequent cutting of the base paper.

As shown in fig. 2 and 11, as a preferred embodiment, the water absorbing device 4 includes:

the water suction pump 41 is arranged on one side of the frame 1; and

and the water suction box 42 is arranged in the middle of the conveying direction of the forming area 21, is positioned in the endless wire ring of the forming wire 2, is communicated with the water suction pump 41, is provided with a plurality of water suction holes 421 at equal intervals on the upper surface of the water suction box 42, and is driven by the water suction pump 41 to suck water out of the slurry in the forming area 21.

It should be noted that the connection between the suction pump 41 and the suction box 42 is provided with a plurality of parallel connection ports arranged at equal intervals, so as to ensure that the suction pump 41 forms a balanced suction force at the suction box 42 and suck out the residual moisture in the slurry on the forming area 21.

As shown in fig. 2, 12, 13 and 14, as a preferred embodiment, the cutting device 5 includes:

the air cylinder 51 is vertically arranged above the output end of the forming area 21 and is fixedly connected with the rack 1;

the cutting knife 52 is arranged below the air cylinder 51, is tightly connected with a push rod of the air cylinder 51, and is provided with a cutting knife groove 211 corresponding to the forming area 21 of the cutting knife 52 to match with the forming area;

the n-shaped plate 53 is arranged in a n-shaped manner, is fixedly connected with the air cylinder 51 and ascends and descends along with the air cylinder 51, and the L-shaped connecting parts 531 at the two ends of the n-shaped plate 53 are symmetrically arranged at the two transverse sides of the air cylinder 51;

the paper pressing plate 54 is in a long strip shape, symmetrically arranged on two transverse sides of the air cylinder 51 and elastically connected with the L-shaped connecting part 531 in a sliding mode;

the bearing plate 55 is arranged below the forming area 21, a notch is formed in the middle of the bearing plate 55 for arranging a cutter groove 211, and the bearing plate 55 is correspondingly matched with the paper pressing plate 54; and

the paper stripping knife 56 is arranged in an arc shape, two ends of the paper stripping knife 56 are fixedly connected with the rack 1, the paper stripping knife is arranged at the front end of the cutter groove 211 in a manner of being tightly attached to the forming area 21, and the blade of the paper stripping knife 56 is arranged towards the conveying direction of the forming area 21.

It should be noted that the pulp after the water absorption by the water absorption device 4 forms the base paper 6, when the base paper 6 is conveyed to the position of the bearing plate 55, the paper peeling knife 56 peels the base paper 6 from the forming area 21, then the cylinder 51 drives the cutter 52 to descend to cut the base paper 6, and during the cutting process, the paper pressing plate 54 presses the front end and the rear end of the base paper 6, so that the cut edge of the base paper is flat.

It is further noted that the time for which the cutter 52 performs the cutting operation one time up and down is just equal to the time for which the base paper travels from below the cutter 52 between the two dividing lines.

As shown in fig. 15, an in-line composite papermaking forming system further includes a slurry recycling device 7, the slurry recycling device 7 is disposed right below the feeding pipe 301, and includes:

a slurry collection tank 71, said slurry collection tank 71 being located directly below said feed pipe 301, being fixedly connected to said frame 1, and collecting the slurry sprayed onto the forming section 21 from the feed pipe 301;

and the slurry recycling pipe 72 is arranged below the slurry collecting tank 71, the upper end of the slurry recycling pipe 72 is communicated with the middle part of the bottom surface of the slurry collecting tank 71, the lower end of the slurry recycling pipe is communicated with the upper end surface of the slurry tank 302, and slurry collected by the slurry collecting tank 71 is guided back to the slurry tank 302 for recycling, so that the cost is saved.

Further, still include the waste water reclamation apparatus 8 that sets up in the pressure bearing plate 3126 below, this waste water reclamation apparatus 8 includes:

the wastewater collection tank 81 is square, an upper opening of the wastewater collection tank 81 is opposite to the pressure bearing plate 3126, and after most of the moisture in the slurry on the forming area 21 is extruded by the extruding assembly 312, the moisture penetrates through the water through hole 3127 and is collected by the wastewater collection tank 81;

waste water eduction tube 82, waste water eduction tube 82 set up in waste water collecting tank 81's below, its lower bottom surface intercommunication with this waste water collecting tank 81, it exports the waste water that waste water collecting tank 81 collected and carries out centralized processing, has avoided waste water crosscurrent in the work area, pollutes operational environment.

The working process is as follows:

the forming net 2 is driven by a first driving motor 20 to carry out rotary conveying along the frame 1, an endless net ring is formed by a conveying roller and a guide roller, and the area at the upper part of the forming net 2 is subjected to production and processing of heat transfer paper base paper in the conveying process, namely a forming area 21; the feeding and squeezing device 3 conveys pulp at the input end of the forming area 21, and during the pulp conveying process, when the squeezing assembly 312 is conveyed to the lower part of the feeding pipe 301, the first spring 3124 opens the first squeezing plate 3122 and the second squeezing plate 3123, the saw teeth on the first squeezing plate 3122 and the second squeezing plate 3123 are combined to form a screen mesh, the pulp output from the feeding pipe 301 is screened, coarse fibers are screened out by the screen mesh and retained on the screen mesh formed by the combination of the first squeezing plate 3122 and the second squeezing plate 3123, when the squeezing assembly 312 is conveyed to the limiting assembly 314, the squeezing member 3125 is in squeezing fit with the arc-shaped squeezing block 3144, the first spring 3124 is compressed, the saw teeth on the first squeezing plate 3122 and the second squeezing plate 3123 are inserted and matched to form a complete and non-defective squeezing plate, synchronously, the lower limiting ring 3133 is correspondingly matched with the limiting plate 3141, the triangular plate 3143 compresses the second spring 3135, the sliding sleeve 3134 is lowered, the complete and non-defective squeezing plate 3126 formed by the first squeezing plate 3122 and the second squeezing plate 3123 is matched with the complete and the The pulp is extruded to be evenly spread on the forming area 21, partial moisture in the pulp is removed, then the forming area 21 is conveyed to the water absorption device 4, the last moisture in the pulp is absorbed by the water absorption device 4 to form base paper, and finally the formed base paper is cut by the cutting device 5.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. An on-line composite thermal transfer paper forming process is characterized by comprising the following steps:

step one, a feeding procedure, namely pumping the slurry in a slurry box (302) through a slurry pump (303), conveying the slurry to a feeding pipe (301) along a pipeline, and spraying the slurry out of a feeding part (3012) of the feeding pipe (301);

step two, a filtering process, namely, the extrusion assembly (312) is driven by the rotary chain (311) to be conveyed to a filtering station below the feeding pipe (301), slurry sprayed by the feeding pipe (301) is filtered, the filtered slurry is flatly laid on the forming net (2) and is driven by the forming net (2) to be conveyed along the same direction as the rotary direction of the rotary chain (311), and the conveying speed of the extrusion assembly is consistent with the rotary speed of the rotary chain (311);

step three, in the extrusion process, the extrusion assembly (312) is driven by the rotary chain (311) to be conveyed to the extrusion station at the rear side of the filtering station, the filtered slurry is synchronously conveyed to the extrusion station by the forming net (2), and the extrusion assembly (312) is longitudinally and vertically limited by the limiting assembly (314) and then descends downwards to extrude the slurry on the forming net (2) so as to dewater the slurry;

step four, a water absorption process, namely, the pulp after extrusion dehydration is continuously driven by the forming net (2) to be conveyed to a water absorption station at the rear side of the extrusion station, water is absorbed by the water absorption device (4), the extrusion assembly (312) is separated from the limit of the limit assembly (314), and the extrusion assembly is driven by the rotary chain (311) to rotate;

step five, a stripping process, namely forming the pulp subjected to the water absorption process into base paper, conveying the base paper to a stripping station positioned at the rear side of the water absorption station under the driving of a forming net (2), and stripping the base paper by a paper stripping knife (56) to separate the base paper from the forming net (2);

step six, a cutting procedure, namely conveying the peeled base paper to a cutting station positioned at the rear side of the peeling station under the driving of a forming net (2), and driving a cutter (52) to vertically cut downwards by an air cylinder (51);

and seventhly, an output process, namely outputting the cut base paper from the cutting station under the driving of a forming net (2).

2. The in-line composite heat transfer paper forming process of claim 1, wherein: in the first step, the second step, the third step and the fourth step, a plurality of extrusion assemblies (312) positioned at the lower part of the rotary chain (311) are arranged at equal intervals along the rotary chain (311), and the front edge and the rear edge of the extrusion assemblies are in butt joint.

3. The in-line composite heat transfer paper forming process of claim 2, wherein: in the second step and the third step, when any extrusion assembly (312) filters the pulp sprayed out of the feeding pipe (301), the subsequent extrusion assembly (312) synchronously extrudes and dewaters the pulp on the forming wire (2).

4. The in-line composite heat transfer paper forming process of claim 1, wherein: in the second step, the first springs (3124) elastically support the first pressure plates (3122) and the second pressure plates (3123) of the pressure assembly (312), so that the saw teeth thereon cooperate to form the filtering holes.

5. The in-line composite heat transfer paper forming process of claim 1, wherein: and in the second step, a slurry recycling device (7) is arranged below the filtering station, and the slurry recycling device (7) collects and recycles the slurry flowing out of the forming net (2).

6. The in-line composite heat transfer paper forming process of claim 1, wherein: in the third step, the first spring (3124) is extruded by the arc-shaped extrusion block (3144), so that the plurality of first extrusion plates (3122) on the extrusion assembly (312) and the saw teeth on the plurality of second extrusion plates (3123) penetrate through and are longitudinally inserted and matched to form a complete direction plate.

7. The in-line composite heat transfer paper forming process of claim 1, wherein: in the third step, the second spring (3135) is pressed by the stopper plate (3141), so that the pressing assembly (312) is integrally moved downward.

8. The in-line composite heat transfer paper forming process of claim 1, wherein: and in the third step, a wastewater recovery device (8) is arranged below the extrusion station, and the wastewater which is extruded from the sizing agent on the forming wire (2) is collected and then treated uniformly by the wastewater recovery device (8).

9. The in-line composite heat transfer paper forming process of claim 1, wherein: in the fifth step, the paper stripping knife (56) is fixedly arranged, and the power for driving the base paper to be conveyed by the forming net (2) is used as the main power for driving the base paper to be separated.

10. The in-line composite heat transfer paper forming process of claim 1, wherein: in the sixth step, the air cylinder (51) synchronously drives the paper pressing plate (54) to position the base paper at the front end and the rear end of the cutting station.

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