CN116551957B - Plastic plate forming device and forming method - Google Patents
Plastic plate forming device and forming method Download PDFInfo
- Publication number
- CN116551957B CN116551957B CN202310825780.2A CN202310825780A CN116551957B CN 116551957 B CN116551957 B CN 116551957B CN 202310825780 A CN202310825780 A CN 202310825780A CN 116551957 B CN116551957 B CN 116551957B
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- roller
- water
- wiping
- conveying channel
- plastic plate
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- 239000004033 plastic Substances 0.000 title claims abstract description 76
- 229920003023 plastic Polymers 0.000 title claims abstract description 76
- 238000000034 method Methods 0.000 title claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 177
- 238000001816 cooling Methods 0.000 claims abstract description 59
- 230000007246 mechanism Effects 0.000 claims abstract description 51
- 239000000110 cooling liquid Substances 0.000 claims abstract description 48
- 238000005507 spraying Methods 0.000 claims abstract description 33
- 238000001125 extrusion Methods 0.000 claims description 39
- 239000004579 marble Substances 0.000 claims description 30
- 239000000463 material Substances 0.000 claims description 18
- 230000008569 process Effects 0.000 claims description 14
- 238000003860 storage Methods 0.000 claims description 13
- 238000007493 shaping process Methods 0.000 claims description 11
- 238000000465 moulding Methods 0.000 claims description 6
- 239000002985 plastic film Substances 0.000 claims description 6
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 15
- 238000004064 recycling Methods 0.000 abstract description 3
- 239000002826 coolant Substances 0.000 description 6
- 238000005187 foaming Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 235000014676 Phragmites communis Nutrition 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 235000012438 extruded product Nutrition 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010137 moulding (plastic) Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/27—Cleaning; Purging; Avoiding contamination
- B29C48/274—Cleaning; Purging; Avoiding contamination of the extruded articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/885—External treatment, e.g. by using air rings for cooling tubular films
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/911—Cooling
- B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
- B29L2007/002—Panels; Plates; Sheets
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to the technical field of plastic processing, and particularly discloses a plastic plate forming device and a plastic plate forming method, wherein a cooling mechanism is provided with a conveying channel for conveying a plastic plate, water spraying rollers, a plurality of conveying rollers and a plurality of wiping components are arranged on the upper surface and the lower surface of the conveying channel, and the water spraying rollers and the plurality of wiping components are sequentially distributed from the starting end to the tail end of the conveying channel; the wiping component comprises a wiping roller, a wringing piece and a water collecting tank, and the conveying roller and the wiping roller are rotatably arranged on the frame; the squeezing piece is arranged at the tail end side of the wiping roller, which is close to the conveying channel, the squeezing piece is movably propped against the wiping roller, the water collecting tank is elastically connected with the two ends of the wiping roller, the water collecting tank is provided with a supporting piece which can be propped against the squeezing piece, the squeezing piece is provided with a water collecting tank, and the water collecting tank is communicated with the water collecting tank through a water collecting pipe. The invention ensures the cooling effect on the plastic plate, realizes the recycling of the cooling liquid, and can effectively prevent the cooling liquid from splashing.
Description
Technical Field
The invention relates to the technical field of plastic processing, in particular to a plastic plate forming device and a plastic plate forming method.
Background
Plastic molding is the process of forming plastics of various forms (powders, granules, solutions and dispersions) into articles or blanks of the desired shape, by up to thirty or more methods. The extrusion molding method has the advantages of low energy consumption, high efficiency and the like, and is widely popularized and used, and the extrusion molding method accounts for about 30% of the production of plastic parts. Extrusion molding, also known as extrusion molding, injection molding or extrusion molding, is a method of continuously passing a material in a flowing state through a die of a specific shape in an extruder by heating and pressurizing. Extrusion is used mainly for the formation of thermoplastics and also for certain thermosets. The freshly extruded product from the extruder die is typically relatively hot and not yet shaped, and after it has fallen onto the conveyor belt, it is cooled by air or water jets to harden it and obtain a solidified plastic part.
The Chinese patent with publication number of CN111016046B discloses a PVC foaming plate cooling and shaping device, which is characterized in that the PVC foaming plate is conveyed to a feed inlet in a cooling box, then conveyed into the cooling box through a driving roller for cooling, the conveying can be realized, the cooling cooperation is completed, when the PVC foaming plate is pushed out from a discharge hole, a wiping main roller and a wiping auxiliary roller wipe cooling liquid on the PVC foaming plate, and when a new wiping main roller is needed to be replaced, the wiping main roller can be taken out from a chute. But after equipment operation a period, clean the main roll and clean the vice roller and absorb water gradually, reach saturated condition, clean the main roll and clean the vice roller and can reduce to PVC foaming board's the effect of cleaning this moment, PVC foaming board surface's cooling rate can drop, and clean the main roll and partly clean not set up under the vice roller and collect the frame, clean the main roll and clean the vice roller and absorb water after saturation, can cause the coolant liquid spill, ground easy skidding produces the potential safety hazard.
Disclosure of Invention
The invention provides a plastic plate forming device and a plastic plate forming method, and aims to solve the problems that cooling effect is not ideal and cooling liquid is easy to splash in the related art.
The invention relates to a plastic plate forming device which comprises a feeding mechanism, an extruding mechanism, a shaping mechanism and a cooling mechanism which are sequentially connected, and is characterized in that the cooling mechanism comprises a frame, a driving assembly, a conveying roller, a water spraying roller and a wiping assembly; the cooling mechanism is provided with a conveying channel for conveying the plastic plate, the conveying channel is obliquely downwards arranged from the starting end to the tail end of the conveying channel, the upper surface and the lower surface of the conveying channel are respectively provided with the water spraying rollers, a plurality of conveying rollers and a plurality of wiping components, and the water spraying rollers and the plurality of wiping components are sequentially arranged from the starting end to the tail end of the conveying channel; the wiping component comprises a wiping roller, a wringer and a water collecting tank, the conveying roller and the wiping roller are rotatably arranged on the rack, and the driving component is used for driving the conveying roller and the wiping roller to rotate; the squeezing piece is arranged on the tail end side of the wiping roller, which is close to the conveying channel, the squeezing piece is movably propped against the wiping roller, the water collecting tank is elastically connected with the two ends of the wiping roller, the water collecting tank is provided with a supporting piece which can be propped against the squeezing piece, the squeezing piece is provided with a water collecting tank, and the water collecting tank is communicated with the water collecting tank through a water collecting pipe.
Preferably, the water collection tank is in a cuboid shape, the water collection tank is arranged along the length direction of the wiping roller, and the two ends of the water collection tank in the length direction are respectively provided with a supporting piece; the water collection tanks are arranged on the side, close to the tail end side of the conveying channel, of the water collection tanks, and the side, close to the tail end side of the conveying channel, of the water collection tanks is uniformly provided with spraying openings.
Preferably, the wringing member is in a strip shape, and the wringing member is arranged along the length direction of the wiping roller; the wiping component further comprises a water tank water pipe, the water tank water pipe is a low-temperature water inlet pipe or a water outlet pipe, the water collecting tank close to the tail end side of the conveying channel is communicated with the water outlet pipe, the rest water collecting tanks are communicated with the low-temperature water inlet pipe, and the water outlet speed of the water outlet pipe is the same as that of the spraying port.
Preferably, the wiping component further comprises a fixing piece, the fixing piece is fixed on the frame, lugs are arranged at two ends of the water collecting tank, the lugs are close to the tail end side of the conveying channel and are fixedly provided with first elastic pieces, sliding grooves are formed in the fixing piece and are matched with the lugs to slide along the length direction of the conveying channel, starting pins and tail pins are arranged in the sliding direction of the lugs and are close to the starting end side of the conveying channel, tail pins are close to the tail end side of the conveying channel and are elastically connected with the sliding grooves, and grooves matched with the shapes of the starting pins and the tail pins are formed in the lugs.
Preferably, the wiping roller includes a first roller and a second roller, the first roller and the second roller being disposed along a width direction of the conveying path, the first roller and the second roller being rotatably fixed at both sides of the conveying path.
Preferably, the wiping component further comprises a screw, the screw is fixed on the frame, the first roller and the second roller are provided with through holes, the first roller and the second roller are connected with the screw in a threaded fit manner through the through holes, and the joint of the first roller and the second roller with the screw is provided with a locking bolt.
Preferably, the water collection tank is fixed with a water storage plate, the water storage plate is rectangular, the water storage plate extends from the water collection tank to the wiping roller, and the water storage plate covers the middle section of the wiping roller along the length direction of the wiping roller.
Preferably, the number of the squeezing pieces is two, the squeezing pieces comprise a first squeezing piece and a second squeezing piece, the first squeezing piece is fixed on the fixed end of the wiping roller, and the second squeezing piece is fixed on the rotating end of the wiping roller; the first extrusion part extends into the water collecting tank of the second extrusion part or the second extrusion part extends into the water collecting tank of the first extrusion part, and the first extrusion part is connected with the second extrusion part through a second elastic part.
Preferably, the cooling mechanism further comprises a fan, the fan is suspended above the conveying channel, two fans are arranged corresponding to one wiping component, and the fans are arranged parallel to the conveying channel.
The invention also provides a plastic plate forming method, which comprises the following steps: feeding the materials into a feeding hopper of a feeding mechanism; feeding the materials into an extrusion mechanism through a spiral feeder according to the material mixing speed, and heating the materials step by the extrusion mechanism; after the extrusion mechanism completes plasticizing, the material is extruded to a shaping mechanism; the plasticized material gradually forms a plane plastic plate in the shaping mechanism and then enters the cooling mechanism; the plastic plate enters a conveying channel of the cooling mechanism and moves to a water spraying roller, and high-temperature cooling liquid is sprayed out through the water spraying roller to cool the surface of the plastic plate; the plastic plate with the high-temperature cooling liquid left on the surface is moved to the wiping component, the wiping roller wipes the high-temperature cooling liquid on the plastic plate, and the fan is started to drive the airflow to flow; the high-temperature cooling liquid accumulated by the wiping roller is collected by the water collecting tank and mixed with the low-temperature cooling liquid, and then sprayed onto the plastic plate in the coverage area of the next wiping roller; the plastic plate is sprayed, cooled step by step and repeatedly wiped through a plurality of groups of wiping components, and the cooling process is completed.
By adopting the technical scheme, the invention has the beneficial effects that:
through the arrangement of the water squeezing piece and the water collecting tank, the water squeezing action of the wiping roller is added in the cooling process, so that the wiping roller can absorb water fully, after the wiping roller reaches a saturated state, part of high-temperature cooling liquid cooled on the surface of the plastic plate can be squeezed out, the subsequent wiping efficiency of the wiping roller is improved, the cooling effect on the plastic plate is ensured, and the cooling speed of the surface of the plastic plate is improved; the problems that after the wiping roller is full of water in the cooling process, the plastic plate cannot be wiped dry by absorbing water when being wiped, cooling liquid still remains on the surface of the plastic plate after wiping, the wiping effect is not ideal, and the cooling speed of the surface of the plastic plate is slow are avoided; the water spraying rollers are only arranged at the initial end of the conveying channel, high-temperature cooling liquid accumulated by the wiping rollers is recovered and mixed with low-temperature cooling liquid for spraying and recycling, and the temperature of the cooling liquid sprayed by the wiping rollers is sequentially reduced by arranging a plurality of groups of wiping rollers, so that a gradual cooling gradient is formed, the problems of cracks and the like of a plastic plate in the cooling process are avoided, and the energy-saving and environment-friendly concept is met; meanwhile, the coolant can be effectively prevented from splashing, and the ground is prevented from skidding, so that potential safety hazards are generated.
Drawings
Fig. 1 is a schematic front view of a plastic plate forming device according to an embodiment.
Fig. 2 is a schematic perspective view of a cooling mechanism according to an embodiment.
FIG. 3 is a cross-sectional view of a cooling mechanism provided by an embodiment.
Fig. 4 is an enlarged view at a in fig. 3.
Fig. 5 is a schematic diagram of an internal structure of a driving assembly according to an embodiment.
Fig. 6 is a schematic illustration of the internal structure of a wiping assembly provided in one embodiment.
Fig. 7 is a schematic illustration of the internal structure of a wiper assembly according to one embodiment.
Fig. 8 is a schematic perspective view of a water collection tank according to an embodiment.
Fig. 9 is a schematic perspective view of a wringer according to an embodiment.
Fig. 10 is a schematic view showing a structure of a wiping roller in a first state according to an embodiment.
Fig. 11 is a schematic view showing a structure of the wiping roller in the second state according to the embodiment.
Reference numerals:
10. a feeding mechanism; 20. an extrusion mechanism; 30. a shaping mechanism; 40. a cooling mechanism; 50. a frame; 510. a transfer passage; 601. a driving motor; 602. a conveyor belt; 603. a belt wheel; 604. a first gear; 605. a second gear; 606. a third gear; 607. a fourth gear; 70. a transfer roller; 80. a water spraying roller; 90. a wiping assembly; 910. a wiping roller; 912. locking the bolt; 913. a first roller; 914. a second roller; 920. a wringing member; 922. a water collecting pipe; 923. a first extrusion; 924. a second extrusion; 925. a second elastic member; 930. a water collection tank; 931. a support; 932. a spray port; 933. a water tank water pipe; 934. an ear; 935. a first elastic member; 936. a water storage plate; 940. a screw; 950. a fixing member; 951. a chute; 952. starting a marble; 953. a last marble; 91. a fan.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
Example 1
As shown in fig. 1, the plastic plate molding device of the present invention comprises a feeding mechanism 10, an extrusion mechanism 20, a shaping mechanism 30 and a cooling mechanism 40 which are sequentially connected.
As shown in fig. 2, the cooling mechanism 40 includes a frame 50, a drive assembly, a transfer roller 70, a water spray roller 80, and a wiper assembly 90.
As shown in fig. 3 and 4, the cooling mechanism 40 has a conveying channel 510 for conveying plastic plates, the conveying channel 510 is arranged obliquely downwards from the starting end to the tail end, the upper and lower surfaces of the conveying channel 510 are respectively provided with a water spraying roller 80, a plurality of conveying rollers 70 and a plurality of wiping components 90, the water spraying rollers 80 are used for spraying high-temperature cooling liquid, the water spraying rollers 80 and the plurality of wiping components 90 are sequentially arranged from the starting end to the tail end of the conveying channel 510, the plurality of conveying rollers 70 are uniformly arranged along the length direction of the conveying channel 510, the plastic plates are uniformly stressed in the conveying process, and the conveying efficiency is high. In this embodiment, the upper and lower surfaces of the conveying channel 510 are provided with 4 conveying rollers 70 and 3 wiping assemblies 90, however, the conveying rollers 70 and the wiping assemblies 90 may be provided in other numbers, which is not limited thereto.
As shown in fig. 4, 5 and 6, the wiper assembly 90 includes a wiper roller 910, a wringer 920, a water collection tank 930, a fixing member 950 and a water tank water pipe 933, the water tank water pipe 933 being a low-temperature water inlet pipe or a water outlet pipe,
as shown in fig. 4, 5 and 6, the wringer 920 is in a strip shape, the wringer 920 is disposed along the length direction of the wiping roller 910, the wringer 920 is disposed on the end side of the wiping roller 910 near the conveying passage 510, and the wringer 920 is movable against the wiping roller 910.
As shown in fig. 4, 5, 6 and 8, the water collection tank 930 is rectangular, the water collection tank 930 is arranged along the length direction of the wiping roller 910, the water collection tank 930 is elastically connected with two ends of the wiping roller 910, the two ends of the water collection tank 930 along the length direction are respectively provided with a support member 931, in this embodiment, the support member 931 is rectangular and can be abutted against the water squeezing member 920, the water squeezing member 920 is provided with a water collection tank, and the water collection tank is communicated with the water collection tank 930 through a water collection pipe 922; the side of the rest of the water collection tanks 930 near the end side of the transfer passage 510 is uniformly opened with the spraying ports 932 except for the water collection tanks 930 near the end side of the transfer passage 510; the water collection tank 930 near the end side of the transfer passage 510 is communicated with a water outlet pipe, and the rest of the water collection tank 930 is communicated with a low-temperature water inlet pipe, and the water outlet speed of the water outlet pipe is the same as that of the spraying port 932. The water of the water collection tank 930 near the end side of the transfer passage 510 is intensively discharged, so that the coolant at the end side of the transfer passage 510 is prevented from splashing, the ground is prevented from slipping, potential safety hazards are generated, and the normal operation of the wiper member 90 near the end side of the transfer passage 510 is ensured.
As shown in fig. 6 and 7, a fixing member 950 is fixed to a frame 50, two ends of a water tank 930 are provided with lugs 934, a first elastic member 935 is fixed to the end side of the lugs 934, which is close to a transmission channel 510, the first elastic member 935 may be a spring, a reed or other elastic member, a sliding slot 951 is formed in the fixing member 950, the sliding slot 951 is adapted to the lugs 934 to slide along the length direction of the transmission channel 510, a starting marble 952 and a final marble 953 are formed in the sliding direction of the lugs 934, the starting marble 952 is close to the starting end side of the transmission channel 510, the final marble 953 is close to the end side of the transmission channel 510, the starting marble 952 and the final marble 953 are elastically connected with the sliding slot 951, grooves adapted to the shapes of the starting marble 952 and the final marble 953 are formed in the lugs 934, in this embodiment, the starting marble 952 and the final marble 953 are hemispherical protrusions, and the grooves are hemispherical recesses correspondingly. By the arrangement of the initial marble 952, the final marble 953 and the first elastic member 935, the reciprocating motion of the water collection tank 930 is realized, and the structure is simple and the operation is convenient.
The low-temperature water inlet pipe is controlled by a low-temperature water inlet motor, low-temperature cooling liquid is injected when the lug 934 is clamped with the starting marble 952 in a matched mode, and the injection of the low-temperature cooling liquid is stopped after the lug 934 is separated from the starting marble 952.
The transfer roller 70 and the wiping roller 910 are rotatably provided on the frame 50. The drive assembly is used to drive the transfer roller 70 and the wiping roller 910 in rotation.
In the initial state, the ears 934 are clamped with the initial marble 952 in a matching way, the low-temperature water inlet pipe is filled with cooling liquid, the supporting piece 931 is abutted against the water squeezing piece 920, the water squeezing piece 920 is used for squeezing the wiping roller 910, the high-temperature cooling liquid accumulated by the wiping roller 910 is recovered into the water collecting tank 930 and mixed with the low-temperature cooling liquid filled with the low-temperature water inlet pipe to form higher-temperature cooling liquid, and the plastic plate in the coverage area of the next wiping roller 910 is continuously sprayed through the spraying opening 932; the water inlet speed of the water collection tank 930 is greater than the water outlet speed until the lug 934 is separated from the initial marble 952 when the gravity of the water collection tank 930 overcomes the resistance of the initial marble 952, the water collection tank 930 moves downwards along the conveying channel 510, the lug 934 is matched and clamped with the final marble 953, and the first elastic piece 935 is pressed and compressed by the lug 934 under the action of the gravity of the water collection tank 930, so that elastic deformation is generated and elastic potential energy is stored; when the higher temperature cooling liquid in the water collection tank 930 is sprayed until the weight of the water collection tank 930 is reduced to a certain amount, the elastic potential energy of the first elastic piece 935 releases resilience, the water collection tank 930 overcomes the resistance of the last marble 953 and is rebounded to a state of being matched and clamped with the initial marble 952, and the cooling process is completed by sequentially and circularly spraying, gradually cooling and repeatedly wiping the plastic plate for multiple times.
The plastic plate forming method comprises the following steps:
feeding the material into a hopper of a feeding mechanism 10;
the materials are fed into the extrusion mechanism 20 through a screw feeder according to the batching speed, and the extrusion mechanism 20 heats the materials step by step;
after the extrusion mechanism 20 completes plasticizing, the material is extruded to a shaping mechanism 30;
the plasticized material gradually forms a plane plastic plate in the shaping mechanism 30, and then enters the cooling mechanism 40;
the plastic plate enters a conveying channel 510 of the cooling mechanism 40 and moves to a water spraying roller 80, and high-temperature cooling liquid is sprayed out through the water spraying roller 80 to cool the surface of the plastic plate;
the plastic plate with the high-temperature cooling liquid left on the surface moves to the wiping component 90, the wiping roller 910 wipes the high-temperature cooling liquid on the plastic plate, and the fan 91 is started to drive the air flow to flow;
the high-temperature cooling liquid accumulated by the wiping roller 910 is collected by the water collection tank 930 and mixed with the low-temperature cooling liquid, and then sprayed onto the plastic sheet in the area covered by the next wiping roller 910;
the plastic plate is sprayed, cooled step by step and wiped repeatedly through the plurality of groups of wiping components 90 to complete the cooling process.
According to the embodiment, through the arrangement of the water squeezing member 920 and the water collecting tank 930, the water squeezing action on the wiping roller 910 is added in the cooling process, so that after the wiping roller 910 is fully filled with water and reaches a saturated state, part of high-temperature cooling liquid cooled on the surface of the plastic plate can be squeezed out, the subsequent wiping efficiency of the wiping roller 910 is improved, the cooling effect on the plastic plate is ensured, and the cooling speed on the surface of the plastic plate is improved; the problems that after the wiping roller 910 is fully filled with water in the cooling process, the plastic plate cannot be wiped dry by absorbing water when being wiped, and cooling liquid still remains on the surface of the plastic plate after wiping, so that the cooling speed of the surface of the plastic plate is slow due to unsatisfactory wiping effect are avoided; only the water spraying roller 80 is arranged at the initial end of the conveying channel 510, then high-temperature cooling liquid accumulated by the wiping rollers 910 is recovered and mixed with low-temperature cooling liquid for spraying and recycling, and the temperature of the cooling liquid sprayed by the wiping rollers 910 is sequentially reduced by arranging a plurality of groups of the wiping rollers 910, so that a gradual cooling gradient is formed, the problems of cracks and the like of a plastic plate in the cooling process are avoided, and the energy-saving and environment-friendly concepts are met; meanwhile, the coolant can be effectively prevented from splashing, and the ground is prevented from skidding, so that potential safety hazards are generated.
Example two
As shown in fig. 10 and 11, in comparison with the first embodiment, the wiping roller 910 includes a first roller 913 and a second roller 914, the first roller 913 and the second roller 914 being disposed in the width direction of the conveying path 510, the first roller 913 and the second roller 914 being rotatably fixed to both sides of the conveying path 510, in the first embodiment, the first roller 913 and the second roller 914 being the same in length.
In the first embodiment, only the plastic plate can be uniformly cooled, and in the actual production process, there is a production demand of plastic plates with different thicknesses, however, the cooling speed of the middle part of the thicker plastic plate is slower, and more cooling liquid is needed for cooling. In this embodiment, the wiping roller 910 is further optimized to be a rotatable first roller 913 and a rotatable second roller 914, as shown in fig. 11, when the plastic plate is thicker, and the cooling effect is not ideal, the first roller 913 and the second roller 914 can be adjusted to be an angle protruding towards the end of the conveying channel 510, and an included angle formed between the first roller 913 and the second roller 914 is used for accumulating the cooling liquid, so that the middle part of the thicker plastic plate is cooled in a targeted manner; as shown in fig. 10, when the plastic plate is thinner, and the cooling speed is faster, less cooling liquid is needed for the covering area of the next wiping roller 910, and the first roller 913 and the second roller 914 can be adjusted to be at an angle protruding towards the starting end of the conveying channel 510, so that the cooling liquid is discharged to two sides along the included angle formed between the first roller 913 and the second roller 914, thereby achieving the effect of saving the cooling liquid; when the plastic plate is of a conventional thickness, the first roller 913 and the second roller 914 can be adjusted to be in the same horizontal line state, and conventional cooling work can be performed.
As shown in fig. 5, the wiping component 90 further includes a screw 940, the screw 940 is fixed on the frame 50, the first roller 913 and the second roller 914 are provided with through holes, the first roller 913 and the second roller 914 are connected with the screw 940 in a threaded fit manner through the through holes, and the connecting part of the first roller 913 and the second roller 914 and the screw 940 is provided with a locking bolt 912. Because the screw 940 is fixed on the frame 50, the effect of synchronously adjusting the height of the wiping roller 910 while rotating the wiping roller 910 can be achieved through the threaded fit between the wiping roller 910 and the screw 940, and the synchronous adjustment of the rotation angle and the height of the wiping roller 910 is realized by matching with different cooling requirements of plastic plates with different thicknesses, so that the device has a simple structure and is convenient to maintain and debug; the lock bolt 912 is used to perform fixed lock after adjusting the wiping roller 910, preventing looseness.
As shown in fig. 2 and 5, the driving assembly includes a driving motor 601, a driving belt 602, a belt pulley 603, a first gear 604, a second gear 605 and a third gear 606, the driving motor 601 drives the driving belt 602 to rotate, the driving belt 602 drives the belt pulley 603 and the driving roller 70 to rotate, the belt pulley 603 is fixedly connected with the first gear 604, the first gear 604 is in meshed connection with the second gear 605, the second gear 605 is in meshed connection with the third gear 606, the third gear 606 is in meshed connection with the fourth gear 607, the fourth gear 607 is fixedly sleeved on the wiping roller 910, the third gear 606 is connected with two ends of the wiping roller 910 through a sleeve, and in the process of rotating the wiping roller 910 to rotate relative to the screw 940 and adjusting the angle, the third gear 606 moves synchronously with the wiping roller 910. The power is transmitted from the driving motor 601 to the conveying roller 70 and the wiping roller 910 through gear engagement, so that the rotation of the conveying roller 70 and the wiping roller 910 is realized, the use efficiency is high, and the structure is compact.
As shown in fig. 6 and 8, the water collection tank 930 is fixed with a water storage plate 936, the water storage plate 936 has a rectangular shape, the water storage plate 936 extends from the water collection tank 930 to the wiping roller 910, and the water storage plate 936 covers the middle section of the wiping roller 910 in the longitudinal direction of the wiping roller 910. The water storage plate 936 can help store more coolant when the plastic plate is thicker and more coolant is needed in the middle of the plastic plate, ensuring the cooling effect.
As shown in fig. 9, two water squeezing pieces 920 are provided, the water squeezing pieces 920 include a first squeezing piece 923 and a second squeezing piece 924, the first squeezing piece 923 is fixed to the fixed end of the wiping roller 910, and the second squeezing piece 924 is fixed to the rotating end of the wiping roller 910; the sum of the lengths of the first and second extrudates 923 and 924 is greater than the length of the first or second rollers 913, 914; the first extrusion 923 partially extends into the water collecting tank of the second extrusion 924, or the second extrusion 924 partially extends into the water collecting tank of the first extrusion 923, the first extrusion 923 is connected to the second extrusion 924 through a second elastic member 925, and the second elastic member 925 may be a spring, a reed, or other elastic member. In this embodiment, the second extrusion 924 extends partially into the sump of the first extrusion 923. By the extending connection and the elastic connection, the wringer 920 can be synchronously stretched when the wiping roller 910 rotates, so that the wringer 920 can ensure the wringing effect of the wiping roller 910.
The rest of the present embodiment can refer to the first embodiment, and will not be described herein.
Example III
In this embodiment, the first roller 913 and the second roller 914 are angled differently, the distance between the wringer 920 and the support 931 is different, and the squeezing effect of the wringer 920 on the wiping roller 910 is different as compared with the embodiment.
As shown in fig. 11, when the plastic plate is thicker, the first roller 913 and the second roller 914 form an included angle protruding toward the end of the conveying channel 510, the cooling speed of the plastic plate is slower, the next wiping roller 910 needs more high-temperature cooling liquid, at this time, the distance between the squeezing member 920 and the supporting member 931 is closer, the squeezing effect of the squeezing member 920 on the wiping roller 910 is better, and the squeezed high-temperature cooling liquid is more; as shown in fig. 10, when the plastic plate is thinner, the first roller 913 and the second roller 914 form an included angle protruding toward the start of the conveying channel 510, the cooling speed of the plastic plate is faster, the next wiping roller 910 needs less high-temperature cooling liquid, the distance between the squeezing member 920 and the supporting member 931 is longer, the squeezing effect of the squeezing member 920 on the wiping roller 910 is worse, and the amount of high-temperature cooling liquid squeezed out is smaller.
The rest of the present embodiment can refer to the first embodiment, and will not be described herein.
Example IV
In this embodiment, compared with the first embodiment, the cooling mechanism 40 further includes a fan 91.
As shown in fig. 2, 3 and 4, the fans 91 are suspended above the conveying channels 510, two fans 91 are provided corresponding to one wiping component 90, and the fans 91 are disposed parallel to the conveying channels 510. In the process of spraying cooling liquid to the water spraying roller 80 and the water collecting tank 930 and cooling the plastic plate, the fan 91 is added to drive the air flow to flow so as to accelerate the evaporation speed of the cooling liquid.
The rest of the present embodiment can refer to the first embodiment, and will not be described herein.
In the description of the present invention, it should 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", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
Claims (5)
1. The plastic plate forming device comprises a feeding mechanism, an extruding mechanism, a shaping mechanism and a cooling mechanism which are sequentially connected, and is characterized in that the cooling mechanism comprises a frame, a driving assembly, a conveying roller, a water spraying roller and a wiping assembly; the cooling mechanism is provided with a conveying channel for conveying the plastic plate, the conveying channel is obliquely downwards arranged from the starting end to the tail end of the conveying channel, the upper surface and the lower surface of the conveying channel are respectively provided with the water spraying rollers, a plurality of conveying rollers and a plurality of wiping components, and the water spraying rollers and the plurality of wiping components are sequentially arranged from the starting end to the tail end of the conveying channel; the wiping component comprises a wiping roller, a wringer and a water collecting tank, the conveying roller and the wiping roller are rotatably arranged on the rack, and the driving component is used for driving the conveying roller and the wiping roller to rotate; the water squeezing piece is arranged at the tail end side of the wiping roller, which is close to the conveying channel, and is movably propped against the wiping roller, the water collecting tank is elastically connected with the two ends of the wiping roller, the water collecting tank is provided with a supporting piece which can be propped against the water squeezing piece, the water squeezing piece is provided with a water collecting tank, and the water collecting tank is communicated with the water collecting tank through a water collecting pipe;
the water collecting tank is cuboid, is arranged along the length direction of the wiping roller, and is provided with supporting pieces at two ends in the length direction; the side, close to the tail end side of the conveying channel, of the rest of the water collection tanks is uniformly provided with spraying openings except for the water collection tanks, close to the tail end side of the conveying channel;
the squeezing piece is in a strip shape and is arranged along the length direction of the wiping roller; the wiping component further comprises a water tank water pipe, the water tank water pipe is a low-temperature water inlet pipe or a water outlet pipe, the water collecting tank close to the tail end side of the conveying channel is communicated with the water outlet pipe, the rest water collecting tanks are communicated with the low-temperature water inlet pipe, and the water outlet speed of the water outlet pipe is the same as that of the spraying port;
the wiping component further comprises a fixing piece, the fixing piece is fixed on the frame, lugs are arranged at two ends of the water collecting tank, a first elastic piece is fixed on the tail end side of each lug, which is close to the corresponding conveying channel, a sliding groove is formed in the fixing piece, the sliding groove is matched with the lugs to slide along the length direction of the conveying channel, an initial marble and a tail marble are arranged along the sliding direction of the lugs, the initial marble is close to the initial end side of the conveying channel, the tail marble is close to the tail end side of the conveying channel, the initial marble and the tail marble are elastically connected with the sliding groove, and grooves which are matched with the shapes of the initial marble and the tail marble are formed in the lugs;
the wiping roller comprises a first roller and a second roller, the first roller and the second roller are arranged along the width direction of the conveying channel, and the first roller and the second roller are rotatably fixed on two sides of the conveying channel;
the two squeezing pieces are arranged, the squeezing pieces comprise a first squeezing piece and a second squeezing piece, the first squeezing piece is fixed on the fixed end of the wiping roller, and the second squeezing piece is fixed on the rotating end of the wiping roller; the first extrusion part extends into the water collecting tank of the second extrusion part or the second extrusion part extends into the water collecting tank of the first extrusion part, and the first extrusion part is connected with the second extrusion part through a second elastic part.
2. The plastic sheet molding apparatus as defined in claim 1, wherein said wiper assembly further comprises a screw, said screw being secured to said frame, said first and second rollers having through holes therethrough, said first and second rollers each being threadably engaged with said screw by said through holes, said first and second rollers having locking bolts mounted thereto at the connection thereof.
3. The plastic sheet molding apparatus as claimed in claim 1, wherein said water collection tank is fixed with a water storage plate having a rectangular shape, said water storage plate extending from said water collection tank to said wiping roller, said water storage plate covering a middle section of said wiping roller in a longitudinal direction of said wiping roller.
4. A plastic sheet molding apparatus as defined in claim 1, wherein said cooling means further comprises fans suspended above said conveyor channels, said fans being provided in two pairs corresponding to one of said wiper assemblies, said fans being disposed parallel to said conveyor channels.
5. A plastic sheet molding method, characterized by using a plastic sheet molding apparatus as claimed in claim 1, comprising the steps of:
feeding the materials into a feeding hopper of a feeding mechanism;
feeding the materials into an extrusion mechanism through a spiral feeder according to the material mixing speed, and heating the materials step by the extrusion mechanism;
after the extrusion mechanism completes plasticizing, the material is extruded to a shaping mechanism;
the plasticized material gradually forms a plane plastic plate in the shaping mechanism and then enters the cooling mechanism;
the plastic plate enters a conveying channel of the cooling mechanism and moves to a water spraying roller, and high-temperature cooling liquid is sprayed out through the water spraying roller to cool the surface of the plastic plate;
the plastic plate with the high-temperature cooling liquid left on the surface is moved to the wiping component, the wiping roller wipes the high-temperature cooling liquid on the plastic plate, and the fan is started to drive the airflow to flow;
the high-temperature cooling liquid accumulated by the wiping roller is collected by the water collecting tank and mixed with the low-temperature cooling liquid, and then sprayed onto the plastic plate in the coverage area of the next wiping roller;
the plastic plate is sprayed, cooled step by step and repeatedly wiped through a plurality of groups of wiping components, and the cooling process is completed.
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| CN202310825780.2A CN116551957B (en) | 2023-07-07 | 2023-07-07 | Plastic plate forming device and forming method |
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| CN202310825780.2A CN116551957B (en) | 2023-07-07 | 2023-07-07 | Plastic plate forming device and forming method |
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| CN116551957B true CN116551957B (en) | 2023-09-12 |
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| CN117863685B (en) * | 2024-03-11 | 2024-05-24 | 淄博顶天塑胶有限公司 | PVC free foaming co-extrusion plate and preparation method thereof |
| CN117863408B (en) * | 2024-03-13 | 2024-05-14 | 浩阳环境股份有限公司 | Waterproof board forming device |
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| CN112873800A (en) * | 2020-12-25 | 2021-06-01 | 重庆瑞霆塑胶有限公司 | Film extrusion casting equipment |
| CN113500764A (en) * | 2021-09-09 | 2021-10-15 | 徐州盛丰电子科技有限公司 | Cooling device after extrusion molding of wire and cable insulating sheath |
| CN214725830U (en) * | 2021-04-23 | 2021-11-16 | 苏州博铭晟新材料有限公司 | Condensed water removing device of film cooling roller |
| CN215472525U (en) * | 2021-09-03 | 2022-01-11 | 南昌卓高塑胶制品有限公司 | Multi-angle cooling device for plastic product production |
| CN217395655U (en) * | 2021-03-29 | 2022-09-09 | 浙江亿铭新材料科技有限公司 | Cooling device for extruded plastic plate |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112873800A (en) * | 2020-12-25 | 2021-06-01 | 重庆瑞霆塑胶有限公司 | Film extrusion casting equipment |
| CN217395655U (en) * | 2021-03-29 | 2022-09-09 | 浙江亿铭新材料科技有限公司 | Cooling device for extruded plastic plate |
| CN214725830U (en) * | 2021-04-23 | 2021-11-16 | 苏州博铭晟新材料有限公司 | Condensed water removing device of film cooling roller |
| CN215472525U (en) * | 2021-09-03 | 2022-01-11 | 南昌卓高塑胶制品有限公司 | Multi-angle cooling device for plastic product production |
| CN113500764A (en) * | 2021-09-09 | 2021-10-15 | 徐州盛丰电子科技有限公司 | Cooling device after extrusion molding of wire and cable insulating sheath |
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