CN116727163B

CN116727163B - Surface layer rolling coating device for polytetrafluoroethylene plate and processing technology thereof

Info

Publication number: CN116727163B
Application number: CN202310999962.1A
Authority: CN
Inventors: 赵景鑫
Original assignee: Changzhou Furui New Material Technology Co ltd
Current assignee: Changzhou Fusheng New Material Technology Co ltd
Priority date: 2023-08-10
Filing date: 2023-08-10
Publication date: 2023-10-20
Anticipated expiration: 2043-08-10
Also published as: CN116727163A

Abstract

The invention discloses a polytetrafluoroethylene plate surface layer rolling coating device and a processing technology thereof, wherein the device comprises a working table plate, a preheating mechanism and a rolling mechanism are arranged at the top of the working table plate, a heat injection port is formed in the working table plate, an extension plate is arranged at one end part of the working table plate, a coating mechanism is arranged at the top of the extension plate, and the processing technology comprises feeding, preheating, hot air adjusting, rolling, coating, drying and discharging. According to the invention, heating, rolling and coating operations are assembled together, so that the carrying time required by the middle operation is reduced, the heat of the heated plate is ensured, the reduction of the surface temperature of the heated plate in the carrying process is reduced, the heated plate can be coated and coated quickly, the two sides of the plate can be synchronously preheated, the influence of the bottom surface of the plate on the top surface is reduced, the coating and coating of the surface layer of the plate are effectively assisted, and the coating width of the plate can be adjusted by a coating mechanism.

Description

Surface layer rolling coating device for polytetrafluoroethylene plate and processing technology thereof

Technical Field

The invention relates to the technical field of polytetrafluoroethylene board production, in particular to a polytetrafluoroethylene board surface rolling coating device and a processing technology thereof.

Background

The polytetrafluoroethylene is commonly called as "plastic king", is a high molecular polymer prepared by polymerizing tetrafluoroethylene as a monomer, has a chemical formula of (C2F 4) n, has excellent heat resistance and cold resistance, and can be used for a long time at-180-260 ℃. The material has the characteristics of acid resistance, alkali resistance and various organic solvents resistance, is almost insoluble in all solvents, and simultaneously, polytetrafluoroethylene has the characteristic of high temperature resistance, and has extremely low friction coefficient, so that the material can be used for lubrication and also becomes an ideal paint for easily cleaning the inner layer of a water pipe.

The polytetrafluoroethylene material is widely used and can be processed into different shapes according to actual demands, wherein the polytetrafluoroethylene board is most widely used, in order to effectively protect the board after production in the actual production process, hot pressing and film coating are carried out on the surface layer, traditional hot pressing and film coating are often carried out independently, namely, the surface of the board is rolled and ground through a hot pressing mechanism and then conveyed to a film coating mechanism for surface layer film coating, in the process, the inventor finds that heat of the surface layer of the board is lost in the process of transferring the board, thereby influencing the yield of surface layer film coating materials in the subsequent coating, in order to better control the yield, the temperature in a workshop is required to be improved, so that the temperature difference is reduced, the requirement on the whole workshop environment is relatively high, the hot pressing equipment can only heat the surface layer to be coated in a hot pressing way, the surface layer is integral, the temperature of the surface layer is also lost to the bottom, and the whole temperature of the board is not always controlled well in the prior art.

For the problems in the related art, no effective solution has been proposed at present.

Disclosure of Invention

The invention aims to provide a polytetrafluoroethylene board surface rolling coating device and a processing technology thereof, so as to solve the problems in the background technology.

In order to achieve the above purpose, the present invention provides the following technical solutions:

the utility model provides a polytetrafluoroethylene panel top layer rolls and grinds coating unit, includes the work platen, the bottom four corners fixed mounting of work platen has the stabilizer blade pole, the top center fixed mounting of work platen has preheating mechanism, preheating mechanism's bottom passes the work platen setting, the hot jet is seted up on the work platen, the hot jet just sets up preheating mechanism, still set up the via hole that sets up along hot jet symmetry on the work platen, preheating mechanism passes the work platen setting through the via hole, evenly seted up bar hole along its length direction on the work platen, the downthehole rotation of bar is installed and is carried the roller; an outer cover plate is arranged at the bottom port of the heat injection port, the top of the outer cover plate is fixedly arranged at the bottom of the working table plate, a rolling mechanism is fixedly arranged at the top of the working table plate, the rolling mechanism is arranged close to the discharging end of the top of the working table plate, an extension plate is fixedly arranged at the end part of the working table plate, close to the rolling mechanism, of the top of the extension plate, and a coating mechanism is fixedly arranged at the top of the extension plate; the bottom fixed mounting of extension board has supplementary stabilizer blade, the installing port has been seted up at the center of extension board, be equipped with the conveyer belt in the installing port, the conveyer belt sets up along extension board length direction, still rotate along the length direction of conveyer belt in the installing port and install the driving roller, the conveyer belt is installed in the outside of driving roller, conveying motor is still installed to the bottom of extension board, conveying motor passes through the conveyer belt and is connected with the driving roller transmission.

Further, the preheating mechanism comprises a supporting plate, the side support plates are installed along central symmetry at the top of backup pad, install link gear between the side support plates, top one side of backup pad still fixed mounting has outer extension plate, fixed mounting has first accommodate motor on the outer extension plate, first accommodate motor is connected with link gear, link gear's top fixed mounting has first lifter, the bottom tip of first lifter runs through the via hole setting on the work platen, link gear's bottom fixed mounting has the second lifter, one side of side support plate still fixed mounting has heating element, first lifter is connected with heating element's bottom, the second lifter is connected with heating element's top.

Further, the bottom end fixed mounting of second lifter has the upper lift plate, the upper lift plate is located the hot jet mouth on the work platen directly over, the bottom fixed mounting of upper lift plate has the cloth accuse board, the gas-supply hole of buckling the setting has been seted up to the inside of cloth accuse board, the bottom end fixed mounting of gas-supply hole has the air outlet, the other end of gas-supply hole is connected with the air duct, the backup pad is located one side fixed mounting of air duct and has the fan frame, the top fixed mounting of fan frame has the air heater, the air duct is connected with the air heater, the bottom fixed mounting of fan frame has the solenoid valve, the air heater is connected with the air duct through the solenoid valve.

Further, the air conveying pipe is connected with the cloth control plate through the corrugated connecting pipe, the bottom of the joint of the corrugated connecting pipe and the cloth control plate is provided with a hanging plate, the tops of the two ends of the hanging plate are fixedly arranged at the bottom of the supporting plate through hanging rods, a limiting groove arranged along the length direction of the hanging plate is formed in the top of the hanging plate, the limiting groove is arranged along the length direction of the air conveying pipe, the joint of the air conveying pipe and the corrugated connecting pipe is arranged in the limiting groove, the bottom end part of the first lifting rod is fixedly provided with a lower lifting plate, the top of the lower lifting plate is fixedly provided with a lamp base plate, the top of the lamp base plate is provided with a heat-radiating lamp tube, and the heat-radiating lamp tube is positively arranged inside the outer cover plate.

Further, the link gear is including rotating the installation axle of installing between two side branch boards, the center fixed mounting of installation axle has the crank piece, still including locating the upper lift piece directly over the crank piece and locating the lower lift piece under the crank piece, the both ends of crank piece all articulate with the middle part of upper lift piece and lower lift piece respectively through the connecting rod mutually, the connecting rod is articulated mutually with the tip of crank piece also, side branch board is all through strengthening rib fixed mounting in the backup pad to one side bottom of back, the bayonet socket down has been seted up at the top center of side branch board, the clamping piece is installed in the rotation of the both ends portion of installation axle, clamping piece fixed mounting is in the bayonet socket down, the top of side branch board still fixed mounting has the cardboard, the bayonet socket has been seted up at the bottom center of cardboard, the top tip of clamping piece is located to the bayonet socket card.

Further, the one end of first accommodate motor towards the side extension board is connected with the pivot through the shaft coupling, the pivot is rotated through connecting bearing and cardboard and is connected, fixed mounting has the cam in the pivot, it installs the guide pulley to rotate on the crank piece, the cam tightly supports the guide pulley setting, the torsional spring is all overlapped at the both ends of installation axle, first draw-in groove has been seted up on the block of clamping, the one end card of torsional spring is located in the first draw-in groove, the tip of installation axle still fixed mounting has spacing plectane, the second draw-in groove has been seted up on the spacing plectane, the other end of torsional spring is seted up in the second draw-in groove, the tuyere includes solid fixed ring seat, gu fixed mounting of solid fixed ring seat is in the bottom tip of gas-supply hole, gu the bottom of solid fixed ring seat is installed out the tuber pipe, it is linked together with the gas-supply hole to go out the tuber pipe, gu fixed collar middle part fixed mounting in the lateral wall middle part of tuber pipe, gu top of gu fixed collar is equipped with the cover and establishes the outside regulation lantern ring with the tuber pipe, the bottom of regulation lantern ring articulates there is the gangbar, the gangbar has the end of gangbar, the gangbar has the other end.

Further, rolling mechanism includes the mounting panel of fixed mounting in work platen top both sides, vertical groove has been seted up at the top center of mounting panel, it is equipped with the regulating block to slide in the vertical groove, the top tip of mounting panel still fixed mounting has the roof, the pneumatic cylinder is installed to the top both ends department of roof, the output shaft tip of pneumatic cylinder is connected with the regulating block, installs the assembly axle between two regulating blocks, the outside fixed mounting of assembly axle has the roll, the bottom fixed mounting of roof has the arc housing, the arc housing cover is located the roll top and is set up, installs the heating lamp on the inner wall of arc housing.

Further, the coating mechanism includes the side shield, the side shield is equipped with two and symmetry installs at the top of extension board, the top tip fixed mounting of side shield has the apron, the riser is installed perpendicularly at the top of apron, one side fixed mounting of riser has lift adjustment subassembly, lift adjustment subassembly's bottom passes the apron setting, lift adjustment subassembly's bottom tip fixed mounting has the spraying subassembly, the spraying subassembly includes fixed mounting at lift adjustment subassembly bottom end's diaphragm and fixed mounting at the connecting plate of diaphragm bottom, one side fixed mounting of connecting plate has the assembly plate, the one end fixed mounting of assembly plate has first sideboard, and other end fixed mounting has the second sideboard, rotate between first sideboard and the second sideboard and install the driven shaft, still fixed mounting has the horizontal pole between first sideboard and the second sideboard, install the displacement piece on the horizontal pole, set up the spacing hole that supplies the horizontal pole to pass on the displacement piece, the displacement piece is connected with the driven shaft, one side that the displacement piece kept away from the driven shaft is fixed mounting has the mounting bracket, the mounting bracket bottom is installed.

Further, the driven shaft is provided with a groove, the linear distance between two ends of the groove, which is arranged along the length direction of the driven shaft, is gradually reduced from two ends of the driven shaft to the middle position, the groove is symmetrically arranged along the center point of the driven shaft, the distance changing block is provided with a notch groove towards the center of one end of the driven shaft, the notch groove is clamped outside the driven shaft, the center position of the notch groove is fixedly provided with a protrusion, and the protrusion is slidably arranged in the groove.

A processing technology for rolling and coating the surface layer of a polytetrafluoroethylene plate by adopting the device comprises the following steps:

A. and (3) feeding: placing a polytetrafluoroethylene plate on a working table plate, and passing the plate through a hot jet port through a conveying and feeding mechanism;

B. preheating: starting a first adjusting motor and adjusting the heights of the air outlet nozzle and the heat-radiating lamp tube, so that the air outlet nozzle and the heat-radiating lamp tube achieve the best preheating effect according to the thickness of the plate;

C. regulating hot air: according to the specification of the coating film required by the plate, controlling the air cylinder, adjusting the wind shield on the wind outlet nozzle, and controlling the wind outlet direction of the wind outlet pipe;

D. rolling: the preheated plate passes through a rolling mechanism, and a hydraulic cylinder is controlled to enable the height of a roller to be matched with the thickness of the plate, and meanwhile, a heating lamp is turned on to ensure that the roller is in a heating state;

E. Coating: the plate enters the conveyer belt, the position of the spraying nozzle is adjusted according to the width of the plate, and the height of the spraying nozzle is adjusted through the lifting adjusting component;

F. and (3) drying: the coated plate is conveyed into a baking oven for baking;

G. and (3) blanking: and (5) blanking and packaging the dried plate.

The process is matched with the device to carry out surface coating and film covering operation on the polytetrafluoroethylene plate, so that the heat loss of the intermediate plate after being heated can be reduced, the qualification rate in the coating and film covering process is improved, the plate keeps a heating state and enters the coating and film covering process, the rapid forming of the subsequent surface coating and film covering can be improved, and the finished product efficiency is greatly improved.

Compared with the prior art, the invention has the following beneficial effects:

according to the invention, heating, rolling and coating operations are assembled together, so that the carrying time required by the middle operation is reduced, the heat of the heated plate is ensured, the reduction of the surface temperature of the heated plate in the carrying process is reduced, the heated plate can be coated and coated quickly, the two sides of the plate can be synchronously preheated, the influence of the bottom surface of the plate on the top surface is reduced, the coating and coating of the surface layer of the plate are effectively assisted, the coating and coating mechanism can also adjust the coating width of the plate, the coating and coating of polytetrafluoroethylene plates with more sizes can be adapted, and the practicability of the coating and coating is greatly improved.

The invention can also synchronously heat the upper surface and the lower surface of the plate, the heating assembly can synchronously regulate through the linkage mechanism, so that the distance between the heating assembly and the plate can be optimally regulated, the heating assembly can heat the top of the plate through hot air, the bottom of the plate is assisted by the heat-emitting lamp tube, the heating speed of the top of the plate can be improved, excessive heat at the top of the plate is prevented from being emitted to the bottom, the coating efficiency of the plate is further influenced, the linkage mechanism can realize opposite regulation on the air outlet nozzle and the heat-emitting lamp tube, the effective heating regulation can be carried out according to the size and the thickness of the plate in actual processing, meanwhile, the wind direction of the air outlet nozzle can be regulated through the air cylinder, the wind direction can be gathered and diffused according to the area required to be heated by the plate in actual conditions, and the utilization rate of hot air and the heating effect of the plate are effectively improved.

The heating lamp can heat the outside of the roller, so that the loss of heat of the surface layer of the plate is reduced when the roller rolls the plate, the efficiency of heat loss of the plate is reduced, and the normal operation in the subsequent surface layer coating operation is effectively ensured.

This technical scheme can also adjust the rotation regulation of driven shaft through the second accommodate motor is indirect, drives equidistant regulation between the displacement piece through the slot on the driven shaft then to change the position of spraying mouth, realize the change of spraying width between the spraying mouth, once adapt to the panel of different size width, the height of spraying mouth can also adjust through the lift adjusting part moreover, also can adapt to the panel of different size thickness, play the best coating tectorial membrane operation to different thickness panels.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a polytetrafluoroethylene sheet surface layer rolling coating apparatus according to an embodiment of the invention;

fig. 2 is a top view of a platen in a teflon sheet skin roll coating apparatus in accordance with an embodiment of the present invention;

fig. 3 is a bottom view of a table plate in a teflon sheet skin rolling coating apparatus in accordance with an embodiment of the present invention;

fig. 4 is a schematic structural view of a preheating mechanism in a polytetrafluoroethylene sheet surface rolling coating apparatus according to an embodiment of the invention;

fig. 5 is a schematic view showing the bottom structure of a preheating mechanism in a teflon sheet surface rolling coating device according to an embodiment of the present invention;

FIG. 6 is a schematic view of the mounting structure of a side support plate in a polytetrafluoroethylene sheet surface rolling coating apparatus according to an embodiment of the invention;

Fig. 7 is a schematic view showing the bottom structure of a support plate in a teflon plate surface rolling coating device according to an embodiment of the invention;

fig. 8 is a schematic structural view of a linkage mechanism in a polytetrafluoroethylene sheet surface rolling coating apparatus according to an embodiment of the invention;

fig. 9 is a schematic view of another view angle structure of a linkage mechanism in a teflon plate surface rolling coating device according to an embodiment of the invention;

FIG. 10 is a schematic view of the mounting structure of a torsion spring in a Teflon sheet surface rolling coating device according to an embodiment of the present invention;

FIG. 11 is a schematic view of the heating assembly of a polytetrafluoroethylene sheet surface rolling coating apparatus according to an embodiment of the invention;

fig. 12 is a schematic view showing the bottom structure of a heating assembly in a teflon sheet skin rolling coating apparatus according to an embodiment of the present invention;

fig. 13 is a schematic structural view of a control board in a teflon plate surface rolling coating device according to an embodiment of the present invention;

fig. 14 is a schematic structural view of an air outlet nozzle in a polytetrafluoroethylene sheet surface rolling coating apparatus according to an embodiment of the invention;

fig. 15 is a schematic structural view of a rolling mechanism in a polytetrafluoroethylene sheet surface rolling coating apparatus according to an embodiment of the invention;

FIG. 16 is a schematic view of the structure of an adjusting block in a Teflon sheet surface rolling coating device according to an embodiment of the present invention;

FIG. 17 is a schematic view of the structure of an arc-shaped housing in a polytetrafluoroethylene sheet surface rolling coating apparatus according to an embodiment of the invention;

fig. 18 is a schematic structural view of a coating mechanism in a teflon sheet skin rolling coating device according to an embodiment of the present invention;

fig. 19 is a schematic view showing the internal components of a coating mechanism in a teflon sheet surface rolling coating device according to an embodiment of the present invention;

FIG. 20 is a schematic view of the structure of a distance-varying block in a polytetrafluoroethylene sheet surface rolling coating apparatus according to an embodiment of the invention;

fig. 21 is a schematic structural view of an adjusting shaft in a teflon sheet surface rolling coating device according to an embodiment of the present invention.

Reference numerals:

1. a work platen; 101. a heat injection port; 102. a via hole; 103. a bar-shaped hole; 104. a conveying roller; 105. an outer cover plate; 2. a foot bar; 3. a preheating mechanism; 301. a support plate; 302. a support column; 303. a side support plate; 304. a linkage mechanism; 305. an outer support plate; 306. a first adjustment motor; 307. a first lifting rod; 308. a second lifting rod; 309. a heating assembly; 310. reinforcing ribs; 311. a lower bayonet; 312. a clamping plate; 313. a bayonet; 314. stabilizing the lath; 315. the first guide sleeve; 316. a second guide sleeve; 317. a buffer sleeve; 318. hoisting a rod; 319. a hanging plate; 320. a limit groove; 321. a coupling; 322. a rotating shaft; 323. connecting a bearing; 324. clamping blocks; 325. a mounting shaft; 326. a crank block; 327. a connecting rod; 328. an upper lifting block; 329. a lower lifting block; 330. a guide wheel; 331. a cam; 332. a torsion spring; 333. a first clamping groove; 334. a limit circular plate; 335. a second clamping groove; 336. an upper lifting plate; 337. a control board is arranged; 3371. a gas delivery hole; 338. an air outlet nozzle; 339. an air delivery pipe; 340. an air heater; 341. a fan base; 342. an electromagnetic valve; 343. a corrugated connecting pipe; 344. a cylinder; 345. an adjusting plate; 346. a fixed ring seat; 347. an air outlet pipe; 348. a fixed collar; 349. adjusting the collar; 350. a linkage rod; 351. an angle bar; 352. a wind deflector; 353. limiting guide sleeve; 354. a limit guide rod; 355. an adjusting rod; 356. a lower lifting plate; 357. a lamp base plate; 358. a thermal radiation lamp tube; 4. a rolling mechanism; 401. a support plate; 402. a vertical groove; 403. an adjusting block; 404. a top plate; 405. a hydraulic cylinder; 406. assembling a shaft; 407. a roller; 408. an arcuate housing; 409. a chute; 410. a slide block; 411. a shaft sleeve; 412. a mounting sleeve; 413. a heating lamp; 414. a connector; 5. an extension plate; 501. a mounting port; 502. a conveyor belt; 503. a conveying motor; 504. a driving roller; 505. a transmission belt; 6. auxiliary support legs; 7. a coating mechanism; 701. side baffles; 702. a cover plate; 703. a riser; 704. a lifting adjusting component; 705. a spray assembly; 706. a cross plate; 707. a connecting plate; 708. an assembly plate; 709. a first side plate; 710. a second side plate; 711. a second adjustment motor; 712. a driving shaft; 713. a drive gear; 714. a driven shaft; 715. a driven gear; 716. a driving toothed belt; 717. a cross bar; 718. a variable-pitch block; 719. a mounting frame; 720. a spray nozzle; 721. a material conveying pipe; 722. a storage bin; 723. a limiting hole; 724. a notch groove; 725. a protrusion; 726. a groove; 727. a limit rod; 728. a limit sleeve; 729. and a limiting plate.

Detailed Description

The invention is further described below with reference to the accompanying drawings and detailed description:

embodiment one: referring to fig. 1-3, a surface layer rolling coating device for polytetrafluoroethylene plates according to an embodiment of the invention includes a working platen 1, four corners of the bottom of the working platen 1 are fixedly provided with support legs 2, the top center of the working platen 1 is fixedly provided with a preheating mechanism 3, the bottom of the preheating mechanism 3 passes through the working platen 1, the working platen 1 is provided with a heat injection port 101, the heat injection port 101 is opposite to the preheating mechanism 3, the heat injection port 101 is arranged along the width direction of the working platen 1, the working platen 1 is also provided with through holes 102 symmetrically arranged along the heat injection port 101, the through holes 102 are arranged along the length direction of the heat injection port 101, the preheating mechanism 3 passes through the working platen 1, the working platen 1 is uniformly provided with strip-shaped holes 103 along the length direction thereof, the strip-shaped holes 103 are rotationally provided with a conveying roller 104, the polytetrafluoroethylene plates are placed on the working platen 1, then the polytetrafluoroethylene plates are pushed by external force, the polytetrafluoroethylene plates can be heated simultaneously through the heat injection port 101, and the subsequent coating efficiency of the polytetrafluoroethylene plates on the surfaces can be ensured.

In order to ensure that the preheating mechanism 3 can heat the bottom of the polytetrafluoroethylene plate well, in this embodiment, an outer cover plate 105 is arranged at the bottom port of the heat injection port 101, and the top of the outer cover plate 105 is fixedly arranged at the bottom of the working table 1.

In order to make the top surface of the polytetrafluoroethylene sheet after preheating smoother, in this embodiment, the top of the working platen 1 is also fixedly provided with a rolling mechanism 4, the rolling mechanism 4 is close to the top discharge end of the working platen 1, the rolling mechanism 4 can perform certain hot pressing on the polytetrafluoroethylene sheet after preheating to make the surface of the polytetrafluoroethylene sheet become smoother, an extension plate 5 is fixedly arranged at one end part of the working platen 1 close to the rolling mechanism 4, the top of the extension plate 5 is fixedly provided with a coating mechanism 7 capable of adjusting the coating width, the polytetrafluoroethylene sheet output by the rolling mechanism 4 can directly enter the extension plate 5 and is coated with a film through the coating mechanism 7, and the whole process can reduce the cooling of the polytetrafluoroethylene sheet during transportation and avoid the influence on the qualification rate of the subsequent coating film.

In order to ensure that the extension board 5 is more stable, in this embodiment, auxiliary support legs 6 are fixedly arranged at the bottom of the extension board 5, in order to ensure that the board can be conveyed on the extension board 5 better, a mounting opening 501 is formed in the center of the extension board 5, a conveying belt 502 is arranged in the mounting opening 501, the conveying belt 502 is arranged along the length direction of the extension board 5, a driving roller 504 is rotatably arranged in the mounting opening 501 along the length direction of the conveying belt 502, the conveying belt 502 is arranged outside the driving roller 504, a conveying motor 503 is further arranged at the bottom of the extension board 5, and the conveying motor 503 is in transmission connection with the driving roller 504 through a driving belt 505.

According to the technical scheme, the heating, rolling and coating operations are assembled together, the carrying time required by the middle separate operation is reduced, the heat of the heated plate is ensured, the reduction of the surface temperature of the heated plate in the carrying process is reduced, the heated plate can be coated and coated quickly, the influence of the bottom surface of the plate on the top surface is reduced, the coating and coating of the surface layer of the plate is effectively assisted, the coating mechanism 7 can also adjust the coating width of the plate, the coating and coating of polytetrafluoroethylene plates with more sizes can be adapted, and the practicability of the coating and coating machine is greatly improved.

Embodiment two: referring to fig. 4-14, for the first embodiment, the preheating of the preheating mechanism 3 is not direct contact heating or indirect heating, the direct contact generally uses heated rollers to heat, but the heating mode is generally low in efficiency, and continuous control of the height and pressure of the rollers is required to heat, so that complicated control programs and systems are required to operate, in this embodiment, indirect heating is used to preheat, in order to enable the preheating mechanism 3 to perform good preheating on both sides of a plate, it is required to enable the preheating mechanism 3 to achieve distance adjustment between the preheating mechanism 3 and the plate, in order to enable the preheating mechanism to have such an effect, in this embodiment, the preheating mechanism 3 includes a support plate 301, the support plate 301 is fixedly disposed directly above the working platen 1 through a support column 302, and the support plate 301 is parallel to the working platen 1, a side support plate 303 is installed along the center symmetry, a linkage mechanism 304 is installed between the side support plates 303, an outer support plate 305 is also fixedly installed on the top side of the support plate 301, a motor 306 is installed on the outer support plate 305, a first lifting rod 307 is installed on the side of the support plate 305, a first lifting rod 307 is installed on the lifting rod 307 is fixedly connected to the bottom end of the first lifting rod 309, and a second lifting rod 309 is installed on the bottom of the lifting rod 309 is fixedly connected to the bottom of the first lifting rod 309, and the lifting rod is installed on the bottom of the lifting rod 309 is fixedly connected to the bottom of the lifting rod 309.

The first adjusting motor 306 is used for driving the linkage mechanism 304 to work, and the linkage mechanism 304 can respectively drive the first lifting rod 307 and the second lifting rod 308 to lift and adjust when in work, and then the position of the heat source part of the heating assembly 309 is adjusted through the first lifting rod 307 and the second lifting rod 308, so that the distance between the heating assembly 309 and the plate is adjusted, and the optimal heating effect is achieved.

In order to enable the heating assembly 309 to adjust the distance between the heating assembly 309 and the plate, in this embodiment, an upper lifting plate 336 is fixedly installed at the bottom end of the second lifting rod 308, the upper lifting plate 336 is disposed directly above the heat injection port 101 on the working platen 1, a control plate 337 is fixedly installed at the bottom of the upper lifting plate 336, a gas transmission hole 3371 that is bent is formed in the control plate 337, a gas outlet nozzle 338 is fixedly installed at the bottom end of the gas transmission hole 3371, a gas transmission pipe 339 is connected with the other end of the gas transmission hole 3371, a fan base 341 is fixedly installed at one side of the support plate 301 located at the air transmission pipe 339, a hot air blower 340 is fixedly installed at the top of the fan base 341, and the gas transmission pipe 339 is connected with the hot air blower 340. When the second lifting rod 308 drives the upper lifting plate 336 to adjust the height, the air outlet 338 can be synchronously driven by the control board 337 to move and adjust, and at the moment, the height of the air outlet 338 from the heat jet 101 can be changed, so that the air outlet 338 can perform optimal blowing heating according to the size and thickness of the plate under practical conditions, and the heating mode of hot air outlet is adopted, so that direct contact with the plate can be avoided, and the heating efficiency is more uniform.

In order to adjust and control the air output of each air outlet nozzle 338, in this embodiment, an electromagnetic valve 342 is fixedly installed at the bottom of the fan seat 341, the air heater 340 is connected with an air delivery pipe 339 through the electromagnetic valve 342, when the air delivery pipe 339 moves up and down, the air delivery pipe 339 is not difficult to find that the air delivery pipe 339 is slightly moved, and in order to enable the air delivery pipe 339 to be stably installed and not to influence the lifting and adjusting of the air delivery pipe 337, in this embodiment, the air delivery pipe 339 is connected with the air delivery pipe 337 through a corrugated connecting pipe 343, a hanging plate 319 is arranged at the bottom of the joint of the corrugated connecting pipe 343 and the air delivery pipe 337, two end tops of the hanging plate 319 are fixedly installed at the bottom of the supporting plate 301 through hanging rods 318, a limit groove 320 arranged along the length direction of the air delivery pipe 339 is arranged at the top of the hanging plate 319, and the joint of the air delivery pipe 339 and the corrugated connecting pipe 343 is installed in the limit groove 320. The air delivery pipe 339 is stably arranged at the bottom of the supporting plate 301 in a lifting mode, and the corrugated connecting pipe 343 can also perform the function of delivering hot air while the adjusting movement of the control board 337 is not influenced.

In order to heat the bottom of the plate by the heating assembly 309, in this embodiment, a lower lifting plate 356 is fixedly installed at the bottom end of the first lifting rod 307, the lower lifting plate 356 is disposed directly below the heat injection hole 101, a lamp base plate 357 is fixedly installed at the top of the lower lifting plate 356, a heat-emitting lamp tube 358 is installed at the top of the lamp base plate 357, and the heat-emitting lamp tube 358 is disposed directly opposite to the inside of the outer cover 105. The heat-emitting lamp 358 can heat the bottom of the plate through the heat-emitting port 101 in an irradiation manner, and the top of the plate is effectively heated by the auxiliary air outlet 338.

As can be seen from the above description, the upper lifting plate 336 and the lower lifting plate 356 are adjusted in opposite directions or opposite directions to perform good heating of the plate, and in order to enable the first lifting rod 307 and the second lifting rod 308 to achieve such an adjusting effect, it is necessary to make the linkage mechanism 304 have the function of adjusting the first lifting rod 307 and the second lifting rod 308 respectively, in this embodiment, the linkage mechanism 304 includes a mounting shaft 325 rotatably mounted between the two side support plates 303, a crank block 326 is fixedly mounted at the center of the mounting shaft 325, an upper lifting block 328 disposed directly above the crank block 326 and a lower lifting block 329 disposed directly below the crank block 326, both ends of the crank block 326 are hinged to the middle portions of the upper lifting block 328 and the lower lifting block 329 respectively through connecting rods 327, and the connecting rods 327 are also hinged to the end portions of the crank block 326. When the installation shaft 325 rotates, the crank block 326 can be driven to rotate synchronously, at this time, the crank block 326 can respectively drive the upper lifting block 328 and the lower lifting block 329 to move opposite directions or back to each other through the connecting rod 327, two ends of the bottom of the upper lifting block 328 are connected with the top end of the first lifting rod 307, two ends of the bottom of the lower lifting block 329 are connected with the top end of the second lifting rod 308, and the upper lifting plate 336 and the lower lifting plate 356 can be respectively driven to move through the first lifting rod 307 and the second lifting rod 308 by the movement of the upper lifting block 328 and the lower lifting block 329, so that the height adjustment of the air outlet nozzle 338 and the heat sending lamp tube 358 is indirectly realized.

In order to enable the mounting shaft 325 to be stably mounted between the side support plates 303, in this embodiment, the bottom of one side of the side support plates 303 facing back is fixedly mounted on the support plate 301 through the reinforcing ribs 310, the bottom bayonet 311 is provided at the center of the top end of the side support plates 303, the clamping blocks 324 are rotatably mounted at two ends of the mounting shaft 325, the clamping blocks 324 are fixedly mounted in the bottom bayonet 311, in order to ensure the stability of the clamping blocks 324, the clamping plates 312 are fixedly mounted at the top of the side support plates 303, the upper bayonet 313 is provided at the center of the bottom of the clamping plates 312, and the upper bayonet 313 is clamped at the top end of the clamping blocks 324.

In order to enable the rotation adjustment of the crank block 326 to be automatic, in this embodiment, one end of the first adjusting motor 306 facing the side support plate 303 is connected with a rotating shaft 322 through a coupling 321, the rotating shaft 322 is rotationally connected with a clamping plate 312 through a connecting bearing 323, a cam 331 is fixedly installed on the rotating shaft 322, a guide wheel 330 is rotationally installed on the crank block 326, the cam 331 abuts against the guide wheel 330 to be arranged, when the rotating shaft 322 is driven to rotate by the first adjusting motor 306, the cam 331 abuts against the guide wheel 330 to move, the guide wheel 330 is rotationally installed on the crank block 326, therefore, the crank block 326 can drive an installation shaft 325 to rotate, then the rotation adjustment of the crank block 326 is achieved, in order to enable the cam 331 to automatically reset the crank block 326 after the cam 331 is adjusted to the crank block 326, two ends of the installation shaft 325 are respectively sleeved with a torsion spring 332, one end of the clamping block 324 is provided with a first clamping groove 333, the end of the torsion spring 325 is fixedly installed with a limiting circular plate 334, the other end of the limiting circular plate 334 is provided with a second clamping groove 335, and the other end of the torsion spring 335 is provided with the second clamping groove 335, and the second clamping groove 332 is automatically reset through the torsion spring 332.

In order to enable the first lifting rod 307 and the second lifting rod 308 to stably lift, in this embodiment, a first guide sleeve 315 is sleeved on the outer portion of the first lifting rod 307, a second guide sleeve 316 is sleeved on the outer portion of the second lifting rod 308, the bottoms of the first guide sleeve 315 and the second guide sleeve 316 are fixedly mounted on the supporting plate 301, the first lifting rod 307 and the second lifting rod 308 are all arranged through the supporting plate 301, a buffer sleeve 317 is sleeved on the outer portion of the first lifting rod 307, and the buffer sleeve 317 is fixedly mounted on the bottom of the supporting plate 301. In order to keep the stability between the side support plate 303 and the outer support plate 305, the side support plate 303 and the outer support plate 305 are also connected through a stabilizing slat 314.

In order to achieve the adjustability of the air outlet size of the air outlet nozzle 338, in this embodiment, the air outlet nozzle 338 includes a fixed ring seat 346, the fixed mounting of the fixed ring seat 346 is at the bottom end of the air delivery hole 3371, the air outlet pipe 347 is mounted at the bottom of the fixed ring seat 346, the air outlet pipe 347 is communicated with the air delivery hole 3371, a fixed collar 348 is fixedly mounted in the middle of the outer side wall of the air outlet pipe 347, an adjusting collar 349 sleeved outside the air outlet pipe 347 is arranged above the fixed collar 348, a linkage rod 350 is hinged at the bottom of the adjusting collar 349, an angle rod 351 is hinged at the bottom end of the linkage rod 350, one end of the angle rod 351 is hinged on the fixed collar 348, and a wind shield 352 is fixedly mounted at the other end of the angle rod 351. When the adjusting collar 349 moves up and down to be adjusted, the angle rod 351 can be driven to move synchronously through the linkage rod 350, one end of the angle rod 351 is hinged to the fixed collar 348, therefore, the other end of the angle rod 351 can drive the wind shield 352 to move, then the angle change of the wind shield 352 relative to the wind outlet pipe 347 is adjusted, when all the wind shields 352 shrink towards the wind outlet pipe 347, the wind direction of the wind outlet pipe 347 can be gathered, heat can be concentrated to blow to the top of the plate, and when the wind shield 352 is far away from the wind outlet pipe 347, the wind direction of the wind outlet pipe 347 can be diffused, the plate can be heated in a large range by blowing, and the heating area required by the plate can be adjusted according to practical conditions.

In order to automate the adjustment of the adjusting collar 349, in this embodiment, an adjusting rod 355 is fixedly mounted on the outer side wall of the adjusting collar 349, an adjusting plate 345 is fixedly mounted on the end portion of the adjusting rod 355, which is far away from the adjusting collar 349, an air cylinder 344 is further mounted on the side wall of the upper lifting plate 336, and an output shaft of the air cylinder 344 is connected with the adjusting plate 345. The air cylinder 344 drives the adjusting plate 345 to adjust up and down, so that the adjusting plate 345 drives the adjusting collar 349 to adjust through the adjusting rod 355, and the adjustment of the air outlets of all the air outlets 338 is realized. In order to enable the adjusting collar 349 to be stably adjusted, in this embodiment, a limit guide rod 354 is fixedly installed at the top of the adjusting collar 349, a limit guide sleeve 353 is sleeved on the top of the limit guide rod 354, and the top end of the limit guide sleeve 353 is fixedly installed at the bottom of the fixed ring seat 346.

According to the scheme provided by the invention, the upper surface and the lower surface of the plate can be synchronously heated, the heating assembly 309 can be synchronously adjusted through the linkage mechanism 304, the optimal adjustment of the distance between the heating assembly 309 and the plate is realized, the heating assembly 309 heats the top of the plate through hot air, the bottom of the plate is assisted by the heat-emitting lamp tube 358, the heating speed of the top of the plate can be improved, excessive heat at the top of the plate is prevented from being emitted to the bottom, the subsequent coating efficiency of the plate is further influenced, the linkage mechanism 304 can realize opposite adjustment of the air outlet nozzle 338 and the heat-emitting lamp tube 358, the effective heating adjustment can be realized according to the size and thickness of the plate in actual processing, meanwhile, the wind direction of the air outlet nozzle 338 can be adjusted through the air cylinder 344, the wind direction can be gathered and diffused according to the area required to be heated by the plate in actual conditions, and the utilization rate of hot air and the heating effect of the plate are effectively improved.

Embodiment III: referring to fig. 15-17, for the above embodiment, after the plate is heated by the heating component 309, the plate is subjected to flattening rolling on the upper surface by the rolling mechanism 4, in this process, the heated plate will lose heat on the surface, and in order to reduce the heat lost by the plate as far as possible, in this embodiment, the rolling mechanism 4 includes a bracket plate 401 fixedly installed on two sides of the top of the platen 1, a vertical slot 402 is provided in the center of the top of the bracket plate 401, an adjusting block 403 is slidably provided in the vertical slot 402, a top plate 404 is fixedly installed at the top end of the bracket plate 401, a hydraulic cylinder 405 is installed at two ends of the top plate 404, an output shaft end of the hydraulic cylinder 405 is connected with the adjusting block 403, an assembling shaft 406 is installed between the two adjusting blocks 403, a roller 407 is fixedly installed outside the assembling shaft 406, an arc housing 408 is fixedly installed at the bottom of the top plate 404, the arc housing 408 is provided at the top of the roller 407, and a heating lamp 413 is installed on the inner wall of the arc housing 408. The heating lamp 413 can heat the surface of the roller 407, so that the heat loss of the plate is reduced when the roller is rolled, the two ends of the roller 407 are further arranged in the vertical groove 402 through the adjusting block 403, meanwhile, the position of the adjusting block 403 in the vertical groove 402 can be adjusted through the hydraulic cylinder 405, and then the height of the roller 407 is changed, so that the roller 407 can adapt to the plates with different sizes and thicknesses for effective processing.

In order to enable the adjusting block 403 to be stably moved and adjusted in the re-upright groove 402, in this embodiment, a sliding groove 409 is formed in the inner side wall of the upright groove 402, a sliding block 410 is fixedly mounted on the side wall of the adjusting block 403, the sliding block 410 is slidably disposed in the sliding groove 409, a mounting sleeve 412 is fixedly mounted at the top end of the adjusting block 403, an output shaft of the hydraulic cylinder 405 is connected with the adjusting block 403 through the mounting sleeve 412, a shaft sleeve 411 is mounted at the center of the adjusting block 403, the assembling shaft 406 is rotatably connected with the adjusting block 403 through the shaft sleeve 411, a connector 414 is mounted at the top of the arc-shaped housing 408, and the connector 414 can be externally connected with a power supply device to supply power to the heating lamp 413.

Through the scheme of the invention, the heating lamp 413 can heat the outside of the roller 407, so that the loss of heat of the surface layer of the plate is reduced when the roller 407 rolls the plate, the efficiency of heat loss of the plate is reduced, and the normal operation in the subsequent surface layer coating operation is effectively ensured.

Embodiment four: referring to fig. 18-21, for the foregoing embodiment, in order to enable the coating mechanism 7 to perform an effective surface coating operation on boards with different sizes and thicknesses, in this embodiment, the coating mechanism 7 includes two side plates 701, the side plates 701 are symmetrically mounted on top of the extension board 5, a cover plate 702 is fixedly mounted on top end of the side plates 701, a vertical plate 703 is vertically mounted on top of the cover plate 702, a lifting adjusting component 704 is fixedly mounted on one side of the vertical plate 703, a bottom portion of the lifting adjusting component 704 is disposed through the cover plate 702, and a spraying component 705 is fixedly mounted on bottom end of the lifting adjusting component 704. The height of the spraying assembly 705 is adjusted through the lifting adjusting assembly 704, then the effective surface coating operation is carried out on the plate on the conveying belt 502, the side baffle 701 can isolate the spraying assembly 705, and the influence of the external environment in the coating process is reduced.

The lifting adjustment assembly 704 may be a lifting adjustment device such as a screw rod or the like, which is commonly used in the art, and the invention is not specifically described herein.

In order to enable the spraying assembly 705 to implement the adjustment of the width of the coating film according to the width dimension of the plate material in the first embodiment, in this embodiment, the spraying assembly 705 includes a transverse plate 706 fixedly installed at the bottom end of the lifting adjustment assembly 704 and a connecting plate 707 fixedly installed at the bottom of the transverse plate 706, one side of the connecting plate 707 is fixedly installed with an assembly plate 708, one end of the assembly plate 708 is fixedly installed with a first side plate 709, the other end is fixedly installed with a second side plate 710, a driven shaft 714 is rotatably installed between the first side plate 709 and the second side plate 710, a cross rod 717 is fixedly installed between the first side plate 709 and the second side plate 710, a distance changing block 718 is installed on the cross rod 717, a limiting hole 723 through which the cross rod 717 passes is formed in the distance changing block 718, the distance changing block 718 is connected with the driven shaft 714, one side of the distance changing block 718, which is far from the driven shaft 714, is fixedly installed with a mounting bracket 719, and the bottom of the mounting bracket 719 is installed with a spraying nozzle 720. The driven shaft 714 is rotated by external force, the position of the variable-pitch block 718 is adjusted by the driven shaft 714, and then the variable-pitch block 718 drives the spray nozzle 720 to realize position adjustment, so that the spray nozzle 720 can adjust the distribution length of the whole spray nozzle 720 according to the actual processing condition, and the spray nozzle is suitable for plates with different sizes and widths.

In order to enable the rotation of the driven shaft 714 to carry out movement adjustment on the variable-pitch block 718, in this embodiment, a groove 726 is formed on the driven shaft 714, the linear distance between two ends of the groove 726, which is set along the length direction of the driven shaft 714, is gradually reduced from two ends of the driven shaft 714 to a middle position, the groove 726 is symmetrically set along the center point of the driven shaft 714, a notch 724 is formed in the center of one end, facing the driven shaft 714, of the variable-pitch block 718, the notch 724 is clamped outside the driven shaft 714, a protrusion 725 is fixedly arranged at the center position of the notch 724, and the protrusion 725 is slidably arranged in the groove 726. When the driven shaft 714 rotates, the protrusion 725 is driven by the groove 726 to move, so that the movement adjustment of the variable-pitch block 718 is achieved.

In order to automate the rotation adjustment of the driven shaft 714, in this embodiment, a second adjustment motor 711 is installed on one side of the second side plate 710, a driving shaft 712 is installed on one end of the second adjustment motor 711, a driving gear 713 is fixedly installed on the driving shaft 712, a driven gear 715 is fixedly installed on one end of the driven shaft 714, and the driving gear 713 is connected with the driven gear 715 through a driving toothed belt 716.

In order to enable the spray nozzle 720 to perform an effective coating operation, in this embodiment, a material conveying pipe 721 is connected to the top of the spray nozzle 720, and a material storage tank 722 is mounted to the top of the cover plate 702, and the material conveying pipe 721 is connected to the material storage tank 722. In order to make the lifting movement of the transverse plate 706 more stable, in this embodiment, a stop lever 727 is vertically and fixedly mounted at the top of the transverse plate 706, a stop collar 728 is sleeved outside the stop lever 727, the stop collar 728 is fixedly mounted on the cover plate 702, and a stop plate 729 is fixedly mounted at the top end of the stop lever 727.

Through the technical scheme of the invention, the rotation adjustment of the driven shaft 714 can be indirectly adjusted through the second adjusting motor 711, and then equidistant adjustment is performed between the variable-pitch blocks 718 driven through the grooves 726 on the driven shaft 714, so that the positions of the spraying nozzles 720 are changed, the change of the spraying width between the spraying nozzles 720 is realized, the plates with different sizes and widths are adapted at one time, the height of the spraying nozzles 720 can be adjusted through the lifting adjusting assembly 704, the plates with different sizes and thicknesses can be adapted, and the optimal coating and film covering operation on the plates with different thicknesses is achieved.

Fifth embodiment: in order to better describe the coating operation of the equipment on the surface layer of the polytetrafluoroethylene plate, the embodiment also discloses a process flow for coating the surface layer of the polytetrafluoroethylene plate by adopting the equipment, which comprises the following steps:

A. and (3) feeding: placing a polytetrafluoroethylene plate on the workbench plate 1, and passing the plate through the thermal jet port 101 through a conveying and feeding mechanism;

B. preheating: starting the first adjusting motor 306 and adjusting the heights of the air outlet nozzle 338 and the heat spot lamp tube 358 to ensure that the air outlet nozzle 338 and the heat spot lamp tube 358 achieve the best preheating effect according to the thickness of the plate;

C. Regulating hot air: according to the specification of the coating film required by the plate, the cylinder 344 is controlled to adjust the wind shield 352 on the wind outlet nozzle 338 and control the wind outlet direction of the wind outlet pipe 347;

D. rolling: the preheated plate passes through the rolling mechanism 4, and the hydraulic cylinder 405 is controlled to enable the height of the roller 407 to be matched with the thickness of the plate, and meanwhile, the heating lamp 413 is turned on to ensure that the roller 407 is in a heating state;

E. coating: the plate enters the conveyer belt 502, the position of the spraying nozzle 720 is adjusted according to the width of the plate, and the height of the spraying nozzle 720 is adjusted through the lifting adjusting component 704;

F. and (3) drying: the coated plate is conveyed into a baking oven for baking;

G. and (3) blanking: and (5) blanking and packaging the dried plate.

The process in the embodiment is matched with the device to carry out surface coating and film covering operation on the polytetrafluoroethylene plate, so that the heat loss of the intermediate plate after being heated can be reduced, the qualification rate in the coating and film covering process is improved, the plate keeps a heating state and enters the coating and film covering process, the rapid forming of the subsequent surface layer film covering can be improved, and the finished product efficiency is greatly improved.

In summary, through the above scheme of the invention, the heating, rolling and coating operations are assembled together, the carrying time required by the middle separate operation is reduced, the heat of the heated plate is ensured, the reduction of the surface temperature of the heated plate in the carrying process is reduced, the heated plate can be coated and coated rapidly, the two sides of the plate can be synchronously preheated in the technical scheme, the influence of the bottom surface of the plate on the top surface is reduced, the coating and coating of the surface layer of the plate is effectively assisted, the coating mechanism 7 can also adjust the coating width of the plate, the coating and coating of polytetrafluoroethylene plates with more sizes can be adapted, and the practicability of the coating and coating machine is greatly improved.

The upper surface and the lower surface of panel can also be heated synchronously, and heating element 309 can carry out synchronous regulation through link gear 304, make the distance between heating element 309 and the panel realize the best regulation, and heating element 309 heats the top of panel through hot-blast, carry out auxiliary heating to the bottom of panel through the heat-ray tube 358, can improve the speed that panel top heated, still avoid panel top heat too much to give off to the bottom, thereby influence follow-up coating efficiency to panel, link gear 304 can realize adjusting in opposite directions to air outlet nozzle 338 and heat shot-light pipe 358, can carry out effectual heating regulation according to the size thickness of panel when actually processing, the wind direction of air outlet nozzle 338 can be adjusted through cylinder 344 simultaneously, can gather and diffuse the wind direction according to the required area of heating of panel under the actual conditions, effectively improve hot-blast utilization ratio and the heating effect of panel.

Meanwhile, the heating lamp 413 can heat the outside of the roller 407, so that the loss of heat of the surface layer of the plate is reduced when the roller 407 rolls the plate, the efficiency of heat loss of the plate is reduced, and the normal operation in the subsequent surface layer coating operation is effectively ensured.

Finally, the rotation adjustment of the driven shaft 714 can be indirectly adjusted through the second adjusting motor 711, and then equidistant adjustment is carried out between the variable-pitch blocks 718 driven by the grooves 726 on the driven shaft 714, so that the positions of the spray nozzles 720 are changed, the change of the spray width between the spray nozzles 720 is realized, plates with different sizes and widths are adapted once, the height of the spray nozzles 720 can be adjusted through the lifting adjusting assembly 704, plates with different sizes and thicknesses can be adapted, and the optimal coating and film covering operation on plates with different thicknesses is achieved.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a polytetrafluoroethylene panel top layer rolls and grinds coating unit, includes work platen (1), the bottom four corners fixed mounting of work platen (1) has stabilizer blade pole (2), its characterized in that, the top center of work platen (1) is fixedly installed and is preheated mechanism (3), the bottom of preheating mechanism (3) is passed work platen (1) and is set up, set up hot jet (101) on work platen (1), hot jet (101) just set up preheating mechanism (3), still set up on work platen (1) along through hole (102) that hot jet (101) set up symmetrically, preheat mechanism (3) and pass work platen (1) setting through hole (102), bar hole (103) have evenly been seted up along its length direction on work platen (1), conveying roller (104) are installed to the rotation in bar hole (103);

an outer cover plate (105) is arranged at the bottom port of the heat injection port (101), the top of the outer cover plate (105) is fixedly arranged at the bottom of the working table plate (1), a rolling mechanism (4) is fixedly arranged at the top of the working table plate (1), the rolling mechanism (4) is arranged close to the discharging end of the top of the working table plate (1), an extension plate (5) is fixedly arranged at the end part of the working table plate (1) close to the rolling mechanism (4), and a coating mechanism (7) is fixedly arranged at the top of the extension plate (5);

The bottom of extension board (5) is fixedly provided with auxiliary support leg (6), installation mouth (501) has been seted up at the center of extension board (5), be equipped with conveyer belt (502) in installation mouth (501), conveyer belt (502) are along extension board (5) length direction setting, still rotate along the length direction of conveyer belt (502) in installation mouth (501) and install driving roller (504), the outside at driving roller (504) is installed to conveyer belt (502), conveying motor (503) is still installed to the bottom of extension board (5), conveying motor (503) are connected with driving roller (504) transmission through conveyer belt (505);

the preheating mechanism (3) comprises a supporting plate (301), side support plates (303) are symmetrically arranged at the top of the supporting plate (301) along the center, a linkage mechanism (304) is arranged between the side support plates (303), an outer support plate (305) is fixedly arranged on one side of the top of the supporting plate (301), a first adjusting motor (306) is fixedly arranged on the outer support plate (305), the first adjusting motor (306) is connected with the linkage mechanism (304), a first lifting rod (307) is fixedly arranged at the top of the linkage mechanism (304), the bottom end part of the first lifting rod (307) penetrates through a through hole (102) in the working table plate (1), a second lifting rod (308) is fixedly arranged at the bottom of the linkage mechanism (304), a heating component (309) is fixedly arranged on one side of the side support plate (303), and the first lifting rod (307) is connected with the bottom of the heating component (309), and the second lifting rod (308) is connected with the top of the heating component (309);

The bottom end part of the second lifting rod (308) is fixedly provided with an upper lifting plate (336), the upper lifting plate (336) is arranged right above a heat injection port (101) on the working table plate (1), the bottom of the upper lifting plate (336) is fixedly provided with a distribution control plate (337), the inside of the distribution control plate (337) is provided with a bent air delivery hole (3371), the bottom end part of the air delivery hole (3371) is fixedly provided with an air outlet nozzle (338), the other end of the air delivery hole (3371) is connected with an air delivery pipe (339), the supporting plate (301) is positioned on one side of the air delivery pipe (339) and is fixedly provided with a fan base (341), the top of the fan base (341) is fixedly provided with a hot air fan (340), the bottom of the fan base (341) is fixedly provided with an electromagnetic valve (342), and the hot air fan (340) is connected with the air delivery pipe (339) through the electromagnetic valve (342);

the air conveying pipe (339) is connected with the cloth control plate (337) through a corrugated connecting pipe (343), a hanging plate (319) is arranged at the bottom of the joint of the corrugated connecting pipe (343) and the cloth control plate (337), the tops of the two ends of the hanging plate (319) are fixedly arranged at the bottom of the supporting plate (301) through hanging rods (318), a limiting groove (320) arranged along the length direction of the hanging plate (319) is formed in the top of the hanging plate (319), the limiting groove (320) is formed along the length direction of the air conveying pipe (339), the joint of the air conveying pipe (339) and the corrugated connecting pipe (343) is arranged in the limiting groove (320), a lower lifting plate (356) is fixedly arranged at the bottom end part of the first lifting rod (307), a lamp seat plate (357) is fixedly arranged at the top of the lower lifting plate (356), a heat-emitting lamp tube (358) is arranged at the top of the lamp seat plate (357), and the heat-emitting lamp tube (358) is arranged in the outer cover plate (105);

The utility model provides a snap-on plate (313) of link gear (304), including rotating installation axle (325) of installing between two side branch boards (303), the center fixed mounting of installation axle (325) has crank piece (326), still including locating upper lift piece (328) directly over crank piece (326) and locating lower lift piece (329) under crank piece (326), the both ends of crank piece (326) all articulate with the middle part of upper lift piece (328) and lower lift piece (329) respectively through connecting rod (327), connecting rod (327) also articulate with the tip of crank piece (326), side branch board (303) are all through strengthening rib (310) fixed mounting on backup pad (301) to one side bottom of back, lower bayonet socket (311) have been seted up at the top center of side branch board (303), the both ends portion rotation of installation axle (325) is installed card and is installed block (324), card install block (324) fixed mounting in lower bayonet socket (311), the top of side branch board (303) still is fixed mounting has bayonet socket (312), card (313) are installed on the tip (313).

2. The polytetrafluoroethylene sheet surface layer rolling coating device according to claim 1, wherein one end of the first adjusting motor (306) facing the side support plate (303) is connected with a rotating shaft (322) through a coupling (321), the rotating shaft (322) is rotationally connected with a clamping plate (312) through a connecting bearing (323), a cam (331) is fixedly arranged on the rotating shaft (322), a guide wheel (330) is rotationally arranged on a crank block (326), the cam (331) is tightly abutted against the guide wheel (330) and is arranged, torsion springs (332) are sleeved at two ends of the mounting shaft (325), a first clamping groove (333) is formed in the clamping block (324), one end of the torsion springs (332) is clamped in the first clamping groove (333), a limit circular plate (334) is fixedly arranged at the end of the mounting shaft (325), a second clamping groove (335) is formed in the other end of the torsion springs (332), the air outlet nozzle (338) comprises a fixed circular plate (338), the bottom end of the mounting seat (346) is fixedly connected with the air outlet pipe (346) of the air outlet pipe (346), the bottom end of the mounting seat (346) is fixedly connected with the air outlet seat (346), the utility model discloses a wind pipe, including air-out pipe (347), fixed lantern ring (348) are installed at the lateral wall middle part fixed mounting of air-out pipe (347), the cover is equipped with and establishes with the outside regulation lantern ring (349) of air-out pipe (347) above the fixed lantern ring (348), the bottom of regulation lantern ring (349) articulates there is gangbar (350), the bottom tip of gangbar (350) articulates installs angle pole (351), the one end of angle pole (351) articulates on fixed lantern ring (348), the other end fixed mounting of angle pole (351) has deep bead (352).

3. The polytetrafluoroethylene board surface layer rolling coating device according to claim 2, wherein the rolling mechanism (4) comprises a support plate (401) fixedly installed on two sides of the top of the table plate (1), a vertical groove (402) is formed in the center of the top end of the support plate (401), an adjusting block (403) is slidably arranged in the vertical groove (402), a top plate (404) is fixedly installed at the top end of the support plate (401), hydraulic cylinders (405) are installed at two ends of the top plate (404), an output shaft end of each hydraulic cylinder (405) is connected with each adjusting block (403), an assembling shaft (406) is installed between the two adjusting blocks (403), a roller (407) is fixedly installed outside the assembling shaft (406), an arc-shaped cover (408) is fixedly installed at the bottom of the top plate (404), the arc-shaped cover (408) is arranged on the top of the roller (407), and a heating lamp (413) is installed on the inner wall of the arc-shaped cover (408).

4. A polytetrafluoroethylene sheet skin rolling coating apparatus according to claim 1, 2 or 3, wherein the coating mechanism (7) comprises side baffles (701), the side baffles (701) are provided with two side baffles (706) and are symmetrically installed at the top of the extension plate (5), a cover plate (702) is fixedly installed at the top end of the side baffles (701), a vertical plate (703) is vertically installed at the top of the cover plate (702), a lifting adjusting assembly (704) is fixedly installed at one side of the vertical plate (703), the bottom of the lifting adjusting assembly (704) is arranged through the cover plate (702), a spraying assembly (705) is fixedly installed at the bottom end of the lifting adjusting assembly (704), the spraying assembly (705) comprises a transverse plate (706) fixedly installed at the bottom end of the lifting adjusting assembly (704) and a connecting plate (707) fixedly installed at the bottom of the transverse plate (706), a mounting plate (708) is fixedly installed at one side of the connecting plate (707), a first side plate (709) is fixedly installed at one end of the mounting plate (708), a second side plate (710) is fixedly installed at the other end, a second side plate (710) is fixedly installed at one side of the connecting plate (709), a transverse plate (710) is fixedly installed between the first side plate (709) and the first side plate (710) and the second side plate (710), the novel spraying device is characterized in that a variable-pitch block (718) is arranged on the cross rod (717), a limiting hole (723) for the cross rod (717) to penetrate is formed in the variable-pitch block (718), the variable-pitch block (718) is connected with a driven shaft (714), a mounting frame (719) is fixedly arranged on one side, far away from the driven shaft (714), of the variable-pitch block (718), and a spraying nozzle (720) is arranged at the bottom of the mounting frame (719).

5. The polytetrafluoroethylene sheet surface layer rolling coating device according to claim 4, wherein a groove (726) is formed in the driven shaft (714), the linear distance between two ends of the groove (726) along the length direction of the driven shaft (714) is gradually reduced from two ends of the driven shaft (714) to the middle position, the groove (726) is symmetrically arranged along the center point of the driven shaft (714), a gap groove (724) is formed in the center of one end of the distance changing block (718) towards the driven shaft (714), the gap groove (724) is clamped outside the driven shaft (714), a protrusion (725) is fixedly arranged at the center position of the gap groove (724), and the protrusion (725) is slidably arranged in the groove (726).

6. A process for processing polytetrafluoroethylene sheet by using the roll coating apparatus according to claim 5, comprising the steps of:

A. and (3) feeding: placing a polytetrafluoroethylene plate on a workbench plate (1), and passing the plate through a thermal jet port (101) through a conveying and feeding mechanism;

B. preheating: starting a first adjusting motor (306) and adjusting the heights of an air outlet nozzle (338) and a heat spot lamp tube (358), so that the air outlet nozzle (338) and the heat spot lamp tube (358) achieve the best preheating effect according to the thickness of the plate;

C. Regulating hot air: according to the specification of the coating film required by the plate, controlling the air cylinder (344), adjusting the wind shield (352) on the air outlet nozzle (338), and controlling the air outlet direction of the air outlet pipe (347);

D. rolling: the preheated plate passes through a rolling mechanism (4) and controls a hydraulic cylinder (405) to enable the height of a roller (407) to be matched with the thickness of the plate, and meanwhile, a heating lamp (413) is turned on to ensure that the roller (407) is in a heating state;

E. coating: the plate enters the conveyer belt (502), the position of the spraying nozzle (720) is adjusted according to the width of the plate, and the height of the spraying nozzle (720) is adjusted through the lifting adjusting component (704);

F. and (3) drying: the coated plate is conveyed into a baking oven for baking;

G. and (3) blanking: and (5) blanking and packaging the dried plate.