CN112388783A - Hot-pressing device and process for molded door panel - Google Patents
Hot-pressing device and process for molded door panel Download PDFInfo
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- CN112388783A CN112388783A CN202011273409.2A CN202011273409A CN112388783A CN 112388783 A CN112388783 A CN 112388783A CN 202011273409 A CN202011273409 A CN 202011273409A CN 112388783 A CN112388783 A CN 112388783A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
- B27M1/00—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching
- B27M1/02—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching by compressing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
- B27M3/00—Manufacture or reconditioning of specific semi-finished or finished articles
- B27M3/18—Manufacture or reconditioning of specific semi-finished or finished articles of furniture or of doors
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- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
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- Moulds For Moulding Plastics Or The Like (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a hot-pressing device for a molded door panel and a process thereof, wherein the hot-pressing device comprises a rack, a waste gas collecting mechanism I, a synchronous closing mechanism, a support plate, a waste gas collecting mechanism II, a mould, a main recovery pipeline and a waste gas adsorption mechanism; the waste gas collecting mechanism I and the synchronous closing mechanism are positioned on two sides of the rack 1, and the synchronous closing mechanism is distributed on two sides of the waste gas collecting mechanism I; the mould is fixed on the support plate; the waste gas collecting mechanism II is positioned at two ends of the support plate and is fixedly connected with the rack; the main recovery pipeline is positioned above the rack and is connected with the waste gas collecting mechanism I, the waste gas collecting mechanism II and the waste gas adsorption mechanism; the frame bears waste gas and collects mechanism I, synchronous closing mechanism, support plate, waste gas collection mechanism II, mould, recovery trunk line, waste gas adsorption apparatus structure. The invention can quickly and intensively heat the die, and can simultaneously carry out recovery treatment on waste gas to the maximum extent and reduce the waste gas overflow quantity.
Description
Technical Field
The invention belongs to the technical field of panel hot-press forming, and particularly relates to a hot-press device and a hot-press process for a molded door panel.
Background
The hot pressing device is used as main equipment for molding the wooden door panel, and some problems are inevitable in the use process;
1) the existing hot-pressing equipment has low waste gas treatment efficiency; a large amount of waste gas is scattered;
2) the heating efficiency of the template in the hot-pressing mechanism is low;
3) when the waste gas adsorption plate is replaced or maintained, the whole waste gas treatment system and the hot press device need to be shut down, so that the production efficiency is reduced.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a hot-pressing device for a molded door panel, which can quickly and intensively heat a mold and can maximally recycle and treat waste gas and reduce the waste gas overflow quantity.
In order to achieve the purpose, the invention adopts the technical scheme that:
a hot pressing device for a molded door panel comprises a rack, a waste gas collecting mechanism I, a synchronous closing mechanism, a support plate, a waste gas collecting mechanism II, a mold, a main recycling pipeline and a waste gas adsorption mechanism; the waste gas collecting mechanism I and the synchronous closing mechanism are positioned on two sides of the rack 1, and the synchronous closing mechanism is distributed on two sides of the waste gas collecting mechanism I; the mould is fixed on the support plate; the waste gas collecting mechanism II is positioned at two ends of the support plate and is fixedly connected with the rack; the main recovery pipeline is positioned above the rack and is connected with the waste gas collecting mechanism I, the waste gas collecting mechanism II and the waste gas adsorption mechanism; the frame bears waste gas and collects mechanism I, synchronous closing mechanism, support plate, waste gas collection mechanism II, mould, recovery trunk line, waste gas adsorption apparatus structure.
Guide rails I are arranged on two sides of the rack; the top of the frame is provided with a top plate, the bottom of the frame is provided with a base, and the base is provided with an oil cylinder;
a plurality of layers of support plates are arranged between the oil cylinder and the top plate; the top shaft end of the oil cylinder is fixedly connected with the bottom layer carrier plate, the top plate is fixedly connected with the top layer carrier plate, and other carrier plates between the oil cylinder and the top plate are movably connected with the synchronous closing mechanism; the periphery of the mold is provided with a fixed block, and the mold passes through the fixed block through a bolt and is fixed on the support plate through a nut matched with the fixed block; the middle of the mould is provided with a modeling pattern, and the modeling pattern is composed of a square strip frame at one side, a multi-layer ferrule at the middle and a long strip frame at the other side; the middle multilayer ferrule is composed of a peripheral circular convex pattern and a central flower pattern; the square strip frame is positioned on one side of the multilayer ferrule pattern, the top and two sides of the square strip frame are straight strip connecting frames, and one side of the square strip frame, which is close to the multilayer ferrule, is an arc strip frame and is the same as the multilayer ferrule in circle center; the long strip frame is positioned at the other side of the multilayer ferrule, the two sides of the long strip frame are straight strip connecting frames, the top of the long strip frame is arc-shaped, and one side of the long strip frame, which is close to the multilayer ferrule, is an arc-shaped strip frame and is the same as the multilayer ferrule in circle center;
the periphery of the support plate is provided with a plurality of groups of fixed seats and guide blocks, the fixed seats are hinged with connecting shafts, inner threads are arranged at the end parts of the fixed seats, and the guide blocks are movably connected with the guide rails I; a first oil outlet pipe and a first oil inlet pipe are arranged on two sides of one end of the support plate, and a second oil inlet pipe and a second oil outlet pipe are arranged on two sides of the other end of the support plate; a first oil way, a second oil way and a sealing layer are arranged in the carrier plate, and the first oil way and the second oil way are wrapped by the sealing layer; the first oil path takes a square strip frame and a multi-layer ferrule as the main trend; the first oil way and the second oil way are internally provided with partitions which respectively divide the first oil way and the second oil way into independent oil ways with clear trends and no random flow; the first oil way firstly circulates the top of the square strip frame along the straight pipeline, then changes direction and transfers, then circulates along the straight strip connecting frame on one side by the straight channel, and then changes direction by the blocking of the blocking and flows through the pattern on the other side of the blocking by taking the multilayer ferrule as a guide; the second oil path takes the rectangular strip frame as the main trend; firstly, a straight pipeline enters the top of the straight pipeline, the straight pipeline entering one side in an arc direction after being blocked by a partition is positioned below a straight strip connecting frame, then the straight pipeline turns to flow into an arc strip frame, then the straight pipeline conducts in a turning mode, and finally the straight pipeline is guided to turn backwards and is discharged by taking the arc shape at the top of the other side of the partition as a main part; the first oil way is provided with a first oil inlet and a first oil outlet which are respectively connected with a first oil inlet pipe and a first oil outlet pipe, and the second oil way is provided with a second oil inlet and a second oil outlet which are respectively connected with a second oil inlet pipe and a second oil outlet pipe.
The synchronous closing mechanism comprises a first supporting arm, a second supporting arm, a supporting shaft, a spring and a baffle plate; one end of the first support arm is hinged with the support plate at the top shaft end of the oil cylinder through a fixing seat; one end of the second supporting arm is hinged with the top plate through a fixed seat, and the other end of the second supporting arm is movably connected with one end of the first supporting arm through a rotating shaft; the support shaft penetrates through the second support arm, and threads are arranged at two ends of the support shaft; one end of the supporting shaft is connected with the connecting shaft on the fixed seat through threads so as to be connected with the support plate; the other end is movably connected with a baffle plate through threads; the spring is sleeved with the support shaft, one end of the spring is in contact with the resistance plate, and the other end of the spring is in contact with the second support arm;
the waste gas collecting mechanism I comprises a power mechanism, a guide rail II, a fixing frame, a connecting arm, a flexible pipeline and a collecting pipeline; the guide rails II are fixed on two sides of the rack; a plurality of groups of fixed frames are arranged on the guide rail II in an up-and-down manner; connecting arms are arranged on two sides of the fixed frames, and the connecting arms of every two adjacent fixed frames are hinged together; two ends of the fixed frame are movably connected with a guide rail II; two ends of the top fixing frame close to the top plate are fixed on the guide rail II through bolts; flexible pipelines are fixedly arranged between every two adjacent fixed frames and are mutually connected and communicated; the flexible pipeline is provided with a communicating pipe orifice which is connected with the collecting pipeline; the collecting pipeline is made of flexible materials and communicated with the main recovery pipeline; the power mechanism comprises a gear, a motor and a rack; the rack is fixed on the rack and positioned on one side of the guide rail II; the motor is fixed on the fixing frame at the bottommost part and is positioned in the flexible pipeline, and a gear is arranged at the output shaft end of the motor and is meshed with a rack;
the waste gas collecting mechanism II comprises a cover plate, a motor, a first screw rod, a sealing plate and a second screw rod; the cover plates are positioned at two ends of the support plate and fixed on the frame, the cover plates cover two ends of the support plate in a sealing manner, and the top of each cover plate is provided with a pipe orifice connected with the main recovery pipeline; the plate surface of the cover plate is provided with a plurality of material taking ports, and the two sides of the cover plate are provided with a plurality of through grooves corresponding to the number and the positions of the material taking ports; the first screw rods are respectively provided with a group on two sides of the cover plate through fixed seats, and the second screw rods are fixed on the top of the cover plate through the fixed seats; two ends of the first screw rod and the second screw rod are simultaneously provided with conical gears which are meshed with each other; the sealing plate is positioned in the cover plate and covers the closed material taking port, the two ends of the sealing plate are provided with fixing arms which penetrate through the through grooves, and the first screw rods penetrate through the fixing arms and are movably connected with each other through threads; one end of one group of first screw rods is provided with a motor, and the shaft end of the motor is provided with a conical gear and is meshed with the conical gear at the shaft end of the first screw rods;
an adsorption pipeline I and an adsorption pipeline II are arranged on the waste gas adsorption mechanism; an access door and an active carbon adsorption plate are arranged on the adsorption pipeline I and the adsorption pipeline II at the same time; the activated carbon adsorption plate is wavy; a diversion plate and an air cylinder are arranged at the intersection of the adsorption pipeline I and the adsorption pipeline II; the turning plate is positioned inside the pipeline, and the cylinder is fixed outside the pipeline; one end of the turning plate is provided with a rotating shaft, one end of the rotating shaft penetrates through the pipeline and is mutually connected through a bearing, and the end part of the rotating shaft is provided with a gear; a toothed plate and a guide rail III are arranged at the top shaft of the cylinder; one end of the toothed plate is fixedly connected with a cylinder top shaft; the guide rail III is fixed on the outer wall of the pipeline; the toothed plate is positioned in the guide rail III and is meshed with the gear on the rotating shaft;
a hot pressing process for a molded door panel comprises the following specific steps:
1) treating the water content of the molded door panel under the conditions of constant temperature and constant humidity to uniformly distribute the water in the molded door panel; and the water content is within 7-12%, so that the water content of the molded door panel is not changed under the influence of the environment in the pressing process.
2) Sanding the surface of the molded door panel; sanding the surface of the molded door panel by using a sander; the phenomena of edge collapse, sand marks and the like are not required to be produced during sanding; and removing the surface of the compact hardened layer of the molded door panel.
3) Placing the panel on a hot-press forming machine for hot-press forming through a feeding and conveying device; the hot pressing temperature is controlled at 160-180 ℃, the error is +/-3 ℃, and the temperature is preferably controlled at 170 ℃; the unit pressure of hot pressing is 1.4-1.65 Mpa; preferably, the pressure is controlled to be 1.5 MPa; the hot pressing time is between 170 and 190 seconds, and preferably, the time is set to 175 seconds; firstly, baking the panel in a hot press for 3-5 minutes, inching the hot press to close by adopting a inching slow method, and inching for 4-5 times until the hot press is completely closed; then, the hot press is inching by adopting a method of inching slowly, the air is discharged for 4-5 times, and the hot press is opened after the full exhaust pressure is zero; the mould closing and mould opening are carried out by adopting a method of inching slowly upwards and inching slowly, so that the phenomena of cracking and deformation during one-step forming are avoided.
4) Maintaining the panel after molding; cooling the plate subjected to hot pressing on a plate frame for 16-19 minutes, and then stacking, wherein the specific implementation is 18 minutes; the stacking height is within 100 +/-10 cm; then placing the mixture in a dark place without wind, stacking the mixture orderly, and naturally curing the mixture for 3 to 5 days.
Compared with the prior art, the invention has the beneficial effects that:
1) the carrier plate is provided with a first oil way and a second oil way which respectively correspond to the upper half part and the lower half part of the modeling pattern; the heat can be concentrated and quickly heated for the modeling pattern part of the die, so that excessive loss of the heat is avoided;
2) the waste gas adsorption mechanism is internally provided with an adsorption pipeline I, an adsorption pipeline II and a turning plate, and the direction of the turning plate can be adjusted through the air cylinder so as to change the circulation path of the waste gas, so that the waste gas can be alternately replaced and used between the adsorption pipeline I and the adsorption pipeline II; the situation that the production efficiency is reduced due to the fact that the system needs to be shut down when the activated carbon adsorption plate is replaced is avoided; the continuous normal operation of the hot-pressing device is ensured;
3) the waste gas collecting mechanism I and the waste gas collecting mechanism II cover the rack and the support plate in an enclosing manner; the collection and treatment of the hot-pressing waste gas can be realized to the greatest extent.
Drawings
FIG. 1 is a schematic structural view of a compression molding door panel compression molding apparatus of the present invention;
FIG. 2 is a schematic structural diagram of a waste gas collecting mechanism I in the hot-pressing device for the molded door panel of the invention;
FIG. 3 is a schematic structural view of a synchronous closing mechanism in a hot press apparatus for molding a door panel according to the present invention;
FIG. 4 is a schematic structural view of a die and carrier plate in a compression molded door panel hot press apparatus of the present invention;
FIG. 5 is a schematic structural view of a first oil passage and a second oil passage in a compression molded door panel heat press apparatus of the present invention;
FIG. 6 is a schematic structural view of a waste gas collecting mechanism II in the hot pressing device for the molded door panel of the present invention;
FIG. 7 is a schematic structural view of a waste gas adsorption mechanism in a hot pressing apparatus for a molded door panel according to the present invention;
FIG. 8 is a schematic structural view of an activated carbon adsorption plate in a hot-pressing apparatus for a molded door panel according to the present invention;
in the figure: 1. a frame; 11. a base; 12. a top plate; 13. an oil cylinder; 14. a guide rail I; 2. a waste gas collecting mechanism I; 21. a power mechanism; 211. a gear; 212. a rack; 22. a guide rail II; 23. a fixing frame; 24. a connecting arm; 25. a flexible conduit; 251. the pipe orifice is communicated; 26. a collection pipe; 3. a synchronous closing mechanism; 31. a first support arm; 32. a second support arm; 33. a support shaft; 34. a spring; 35. blocking the plate; 4. a carrier plate; 41. a fixed seat; 42. a guide block; 43. a first oil inlet pipe; 431. a first oil outlet pipe; 44. a second oil inlet pipe; 441. a second oil outlet pipe; 45. a first oil passage; 451. a first oil inlet; 452. a first oil outlet; 46. a second oil passage; 461. a second oil outlet; 462. a second oil inlet; 47. a sealing layer; 48. separating; 5. a waste gas collecting mechanism II; 51. a cover plate; 511. a through groove; 512. a material taking port; 52. a motor; 53. a first screw; 54. closing the plate; 541. a fixed arm; 55. a second screw; 6. a mold; 61. modeling a pattern; 611. a square strip frame; 612. a multilayer ferrule; 613. a rectangular strip frame; 62. a fixed block; 7. a main recovery pipeline; 8. an exhaust gas adsorption mechanism; 81. an adsorption pipeline I; 82. an adsorption pipeline II; 83. an access door; 84. a cylinder; 841. a toothed plate; 842. a guide rail III; 85. a direction-changing plate; 851. a rotating shaft; 852. a gear; 86. an activated carbon adsorption plate.
Detailed Description
For the convenience of understanding of those skilled in the art, the technical solution of the present invention will be further described in detail with reference to fig. 1 to 8.
A hot pressing device for a molded door panel comprises a rack 1, a waste gas collecting mechanism I2, a synchronous closing mechanism 3, a support plate 4, a waste gas collecting mechanism II 5, a mold 6, a recovery main pipeline 7 and a waste gas adsorption mechanism 8; the waste gas collecting mechanism I2 and the synchronous closing mechanism 3 are positioned on two sides of the rack 1, and the synchronous closing mechanism 3 is distributed on two sides of the waste gas collecting mechanism I2; the mould 6 is fixed on the support plate 4; the waste gas collecting mechanism II 5 is positioned at two ends of the support plate 4 and is fixedly connected with the frame 1; the main recovery pipeline 7 is positioned above the rack 1 and is connected with the waste gas collecting mechanism I2, the waste gas collecting mechanism II 5 and the waste gas adsorption mechanism 8; the frame 1 bears a waste gas collecting mechanism I2, a synchronous closing mechanism 3, a support plate 4, a waste gas collecting mechanism II 5, a mould 6, a recovery main pipeline 7 and a waste gas adsorption mechanism 8.
Guide rails I14 are arranged on two sides of the rack 1; the top of the frame 1 is provided with a top plate 12, the bottom of the frame 1 is provided with a base 11, and the base 11 is provided with an oil cylinder 13;
a multilayer carrier plate 4 is arranged between the oil cylinder 13 and the top plate 12; the top shaft end of the oil cylinder 13 is fixedly connected with the bottom layer carrier plate 4, the top plate 12 is fixedly connected with the top layer carrier plate 4, and other carrier plates 4 between the oil cylinder 13 and the top plate 12 are movably connected with the synchronous closing mechanism 3; the periphery of the die 6 is provided with a fixed block 62, and the die 6 passes through the fixed block 62 through a bolt and is fixed on the carrier plate 4 through a nut; the middle of the mould 6 is provided with a modeling pattern 61, and the modeling pattern 61 is composed of a square strip frame 611 on one side, a multi-layer ferrule 612 in the middle and a long strip frame 613 on the other side; the middle multi-layer ferrule 612 is composed of a peripheral circular convex pattern and a central flower pattern; the square strip frame 611 is positioned on one side of the pattern of the multilayer ferrule 612, the top and two sides of the square strip frame are straight strip connecting frames, and one side of the square strip frame close to the multilayer ferrule 612 is an arc strip frame and is the same as the circle center of the multilayer ferrule 612; the rectangular strip frame 613 is positioned at the other side of the multilayer ferrule 612, two sides of the rectangular strip frame are straight strip connecting frames, the top of the rectangular strip frame is arc-shaped, and one side of the rectangular strip frame, which is close to the multilayer ferrule 612, is an arc-shaped strip frame and has the same circle center with the multilayer ferrule 612;
a plurality of groups of fixed seats 41 and guide blocks 42 are arranged on the periphery of the carrier plate 4, the fixed seats 41 are hinged with connecting shafts, inner threads are arranged at the end parts of the fixed seats 41, and the guide blocks 42 are movably connected with the guide rail I14; a first oil outlet pipe 431 and a first oil inlet pipe 43 are arranged on two sides of one end of the carrier plate 4, and a second oil inlet pipe 44 and a second oil outlet pipe 441 are arranged on two sides of the other end of the carrier plate; a first oil path 45, a second oil path 46 and a sealing layer 47 are arranged inside the carrier plate 4, and the sealing layer 47 wraps the first oil path 45 and the second oil path 46 to avoid oil leakage in the heat conduction process; the first oil path 45 is in the leading direction of a square strip frame and a multi-layer ferrule; a partition 48 is arranged in the first oil path 45 and the second oil path 46 to respectively divide the first oil path 45 and the second oil path 46 into independent oil paths with clear trend and no random flow; the first oil path 45 firstly circulates the top of the square strip frame along the straight pipeline, then changes direction and transfers, then circulates along the straight strip connecting frame on one side by the straight channel, and then changes direction by the blocking of the blocking and flows through the pattern on the other side by taking the multilayer ferrule as a guide; the second oil passage 46 is mainly formed by a rectangular bar frame; firstly, a straight pipeline enters the top of the straight pipeline, the straight pipeline entering one side in an arc direction after being blocked by a partition is positioned below a straight strip connecting frame, then the straight pipeline turns to flow into an arc strip frame, then the straight pipeline conducts in a turning mode, and finally the straight pipeline is guided to turn backwards and is discharged by taking the arc shape at the top of the other side of the partition as a main part; the first oil path 45 is provided with a first oil inlet 451 and a first oil outlet 452 which are respectively connected with the first oil inlet pipe 43 and the first oil outlet 431, and the second oil path 46 is provided with a second oil inlet 462 and a second oil outlet 461 which are respectively connected with the second oil inlet pipe 44 and the second oil outlet pipe 441; the heat conducting oil respectively enters from the first oil inlet pipe 43 and the second oil inlet pipe 44 and then is discharged from the first oil outlet pipe 431 and the second oil outlet pipe 441 to complete the heating process of the heat cycle; the supporting plate 4 and the die 6 are pushed by the oil cylinder 13 to slide up and down along the guide rail I14, so that the hot-pressing molding process of the die 6 to the panel is completed.
The synchronous closing mechanism 3 comprises a first supporting arm 31, a second supporting arm 32, a supporting shaft 33, a spring 34 and a baffle plate 35; one end of the first support arm 31 is hinged with the support plate 4 at the top shaft end of the oil cylinder 13 through a fixed seat; one end of the second supporting arm 32 is hinged with the top plate 12 through a fixed seat, and the other end of the second supporting arm is movably connected with one end of the first supporting arm 31 through a rotating shaft; the supporting shaft 33 passes through the second supporting arm 32 and is provided with threads at two ends; one end of the supporting shaft 33 is connected with the connecting shaft on the fixed seat through threads so as to be connected with the carrier plate 4; the other end is movably connected with a baffle plate 35 through threads; the spring 34 is sleeved with the support shaft 33, one end of the spring 34 is in contact with the resistance plate 35, and the other end of the spring 34 is in contact with the second support arm 32; when the oil cylinder 13 pushes the carrier plates 4 to close and open the molds, the synchronous closing mechanism 3 controls each layer of the carrier plates 4 to be closed simultaneously, so that the difference of molding quality caused by inconsistent heating time of the molds 6 due to asynchronous closing is avoided; the mold opening distance of each layer of carrier plate 4 can be adjusted by rotating the support shaft 33 and matching with the spring 34;
the waste gas collecting mechanism I2 comprises a power mechanism 21, a guide rail II 22, a fixed frame 23, a connecting arm 24, a flexible pipeline 25 and a collecting pipeline 26; the guide rails II 22 are fixed on two sides of the rack 1; a plurality of groups of fixed frames 23 are arranged on the guide rail II 22 in an up-and-down manner; connecting arms 24 are arranged on two sides of the fixed frame 23, and the connecting arms 24 play a role in supporting the fixed frame 23; the connecting arms 24 of every two adjacent fixed frames 23 are hinged together; two ends of the fixed frame 23 are movably connected with a guide rail II 22; two ends of a top fixing frame 23 close to the top plate 12 are fixed on the guide rail II 22 through bolts; flexible pipelines 25 are fixedly arranged between every two adjacent fixed frames 23 and are mutually connected and communicated; the flexible pipeline 25 is provided with a communicating pipe opening 251, and the communicating pipe opening 251 is connected with the collecting pipeline 26; the collecting pipeline 26 is made of flexible materials and is connected with the main recovery pipeline 7; the power mechanism 21 comprises a gear 211, a motor and a rack 212; the rack 212 is fixed on the rack 1 and positioned on one side of the guide rail II 22; the motor is fixed on the fixing frame 23 at the bottommost part and is positioned in the flexible pipeline 25, a gear 211 is arranged at the output shaft end of the motor and is meshed with a rack 212, when the oil cylinder 13 pushes the support plate 4 to move up and down, the fixing frame 23 is driven to synchronously move up and down along the guide rail II 22 and the support plate 4 by the power provided by the motor, and waste gas enters the recovery main pipeline 7 through the flexible pipeline 25 and the collection pipeline 26 to be recovered and then treated when the mould is opened; the waste gas is prevented from overflowing from the side;
the waste gas collecting mechanism II 5 comprises a cover plate 51, a motor 52, a first screw 53, a sealing plate 54 and a second screw 55; the cover plates 51 are positioned at two ends of the carrier plate 4 and fixed on the frame 1, the cover plates 51 cover the two ends of the carrier plate 4 in a closed manner to reduce excessive leakage of waste gas during mold opening, and the top of the cover plates 51 is provided with a pipe orifice connected with the main recovery pipeline 7; the plate surface of the cover plate 51 is provided with a plurality of material taking ports 512, and two sides of the cover plate 51 are provided with a plurality of through grooves 511 corresponding to the number and the positions of the material taking ports 512; the first screw rods 53 are respectively provided with a group on two sides of the cover plate 51 through fixed seats, and the second screw rods 55 are fixed on the top of the cover plate 51 through the fixed seats; the two ends of the first screw 53 and the second screw 55 are simultaneously provided with conical gears and are meshed with each other; the sealing plate 54 is positioned inside the cover plate 51 to cover and seal the material taking port 512, the fixing arm 541 penetrates through the through groove 511 is arranged at two ends of the sealing plate 54, and the first screw 53 penetrates through the fixing arm 541 and is movably connected with the fixing arm 541 through threads; one end of one group of the first screw rods 53 is provided with a motor 52, and the shaft end of the motor 52 is provided with a conical gear and is meshed with the conical gear at the shaft end of the first screw rods 53; the motor 52 provides power to drive the closing plate 54 to move up and down, so that the effect of opening and closing the material taking port 512 is achieved; after the mold is opened, the waste gas is recovered through the waste gas collecting mechanism II 5 and the waste gas collecting mechanism I2, and the closing plate 54 is driven by the motor 52 to open the material taking port 512 for material changing;
an adsorption pipeline I81 and an adsorption pipeline II 82 are arranged on the waste gas adsorption mechanism 8; an access door 83 and an active carbon adsorption plate 86 are arranged on the adsorption pipeline I81 and the adsorption pipeline II 82; the activated carbon adsorption plate 86 is inserted into the adsorption pipeline I81 and the adsorption pipeline II 82 through the access door 83; the activated carbon adsorption plate 86 is wavy, so that compared with a plane type adsorption plate, the adsorption area is increased, and the adsorption effect is further improved; a direction changing plate 85 and an air cylinder 84 are arranged at the intersection of the adsorption pipeline I81 and the adsorption pipeline II 82; the direction changing plate 85 is positioned inside the pipeline, and the air cylinder 84 is fixed outside the pipeline; one end of the direction changing plate 85 is provided with a rotating shaft 851, one end of the rotating shaft 851 penetrates through a pipeline and is connected with each other through a bearing, and the end part of the rotating shaft 851 is provided with a gear 852; a toothed plate 841 and a guide rail III 842 are arranged at the top shaft of the air cylinder 84; one end of the toothed plate 841 is fixedly connected with the top shaft of the air cylinder 84; the guide rail III 842 is fixed on the outer wall of the pipeline; the tooth plate 841 is positioned in the guide rail III 842 and is meshed with a gear 852 on the rotating shaft 851; the cylinder 84 pushes the toothed plate 841 to slide in the guide rail III 842 so as to drive the direction changing plate 85 to rotate by taking the rotating shaft 851 as the axis; when the activated carbon adsorption plate 86 in the adsorption pipeline I81 is saturated, the cylinder 84 drives the turning plate 85 to rotate to plug the waste gas inlet of the adsorption pipeline I81, the adsorption pipeline II 82 continues to perform adsorption treatment, and meanwhile, the activated carbon adsorption plate 86 in the adsorption pipeline I81 is replaced; continuous and uninterrupted waste gas treatment is realized by the alternate use of the adsorption pipeline I81 and the adsorption pipeline II 82, so that the working efficiency is improved;
a hot pressing process for a molded door panel comprises the following specific steps:
1) treating the water content of the molded door panel under the conditions of constant temperature and constant humidity to uniformly distribute the water in the molded door panel; and the water content is within 7-12%, so that the water content of the molded door panel is not changed under the influence of the environment in the pressing process.
2) Sanding the surface of the molded door panel; sanding the surface of the molded door panel by using a sander; the phenomena of edge collapse, sand marks and the like are not required to be produced during sanding; the surface of the compact hardened layer of the molded door panel is removed, so that warping deformation or cracking cannot be generated in the molding process.
3) Placing the panel on a hot-press forming machine for hot-press forming through a feeding and conveying device; the hot pressing temperature is controlled at 160 ℃ and 180 ℃, the error is +/-3 ℃, and the specific implementation is controlled at 170 ℃; the unit pressure of hot pressing is 1.4-1.65 Mpa; the specific implementation is controlled to be 1.5 Mpa; the hot pressing time is between 170 and 190 seconds, specifically 175 seconds; firstly, baking the panel in a hot press for 3-5 minutes, inching the hot press to close by adopting a inching slow method, and inching for 4-5 times until the hot press is completely closed; then, the hot press is inching by adopting a method of inching slowly, the air is discharged for 4-5 times, and the hot press is opened after the full exhaust pressure is zero; the mould closing and mould opening are carried out by adopting a method of inching slowly upwards and inching slowly, so that the phenomena of cracking and deformation during one-step forming are avoided.
4) Maintaining the panel after molding; cooling the plate subjected to hot pressing on a plate frame for 16-19 minutes, and then stacking, wherein the specific implementation is 18 minutes; the stacking height is within 100 +/-10 cm; then placing the mixture in a dark place without wind, stacking the mixture orderly, and naturally curing the mixture for 3 to 5 days.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the present invention as defined in the accompanying claims.
Claims (10)
1. A hot pressing device for a molded door panel comprises a rack, a waste gas collecting mechanism I, a synchronous closing mechanism, a support plate, a waste gas collecting mechanism II, a mold, a main recycling pipeline and a waste gas adsorption mechanism; the device is characterized in that the waste gas collecting mechanism I and the synchronous closing mechanism are positioned on two sides of the frame 1, and the synchronous closing mechanism is distributed on two sides of the waste gas collecting mechanism I; the mould is fixed on the support plate; the waste gas collecting mechanism II is positioned at two ends of the support plate and is fixedly connected with the rack; the main recovery pipeline is positioned above the rack and is connected with the waste gas collecting mechanism I, the waste gas collecting mechanism II and the waste gas adsorption mechanism; the frame bears waste gas and collects mechanism I, synchronous closing mechanism, support plate, waste gas collection mechanism II, mould, recovery trunk line, waste gas adsorption apparatus structure.
2. The hot pressing device for the molded door panel as claimed in claim 1, wherein guide rails I are arranged on two sides of the frame; the top of the frame is provided with a top plate, the bottom of the frame is provided with a base, and the base is provided with an oil cylinder; a plurality of layers of support plates are arranged between the oil cylinder and the top plate; the top shaft end of the oil cylinder is fixedly connected with the bottom layer carrier plate, the top plate is fixedly connected with the top layer carrier plate, and other carrier plates are movably connected with the synchronous closing mechanism between the oil cylinder and the top plate.
3. The hot pressing device for molded door panels as claimed in claim 1, wherein the mold is provided with fixing blocks around the periphery thereof, and the mold is fixed on the carrier plate by bolts passing through the fixing blocks and nuts; the middle of the mould is provided with a modeling pattern, and the modeling pattern is composed of a square strip frame at one side, a multi-layer ferrule at the middle and a long strip frame at the other side; the middle multilayer ferrule is composed of a peripheral circular convex pattern and a central flower pattern; the square strip frame is positioned on one side of the multilayer ferrule pattern, the top and two sides of the square strip frame are straight strip connecting frames, and one side of the square strip frame, which is close to the multilayer ferrule, is an arc strip frame and is the same as the multilayer ferrule in circle center; the long strip frame is positioned at the other side of the multilayer ferrule, the two sides of the long strip frame are straight strip connecting frames, the top of the long strip frame is arc-shaped, and one side of the long strip frame, which is close to the multilayer ferrule, is an arc-shaped strip frame and is the same as the multilayer ferrule in circle center.
4. The hot-pressing device for the molded door panel according to claim 1, wherein the periphery of the carrier plate is provided with a plurality of groups of fixing seats and guide blocks, the fixing seats are hinged with connecting shafts, the end parts of the fixing seats are provided with internal threads, and the guide blocks are movably connected with a guide rail I; a first oil outlet pipe and a first oil inlet pipe are arranged on two sides of one end of the support plate, and a second oil inlet pipe and a second oil outlet pipe are arranged on two sides of the other end of the support plate; a first oil way, a second oil way and a sealing layer are arranged in the carrier plate, and the first oil way and the second oil way are wrapped by the sealing layer; the first oil path takes a square strip frame and a multi-layer ferrule as the main trend; the first oil way and the second oil way are internally provided with partitions which respectively divide the first oil way and the second oil way into independent oil ways with clear trends and no random flow;
the first oil way firstly circulates the top of the square strip frame along the straight pipeline, then changes direction and transfers, then circulates along the straight strip connecting frame on one side by the straight channel, and then changes direction by the blocking of the blocking and flows through the pattern on the other side of the blocking by taking the multilayer ferrule as a guide; the second oil path takes the rectangular strip frame as the main trend; firstly, a straight pipeline enters the top of the straight pipeline, the straight pipeline entering one side in an arc direction after being blocked by a partition is positioned below a straight strip connecting frame, then the straight pipeline turns to flow into an arc strip frame, then the straight pipeline conducts in a turning mode, and finally the straight pipeline is guided to turn backwards and is discharged by taking the arc shape at the top of the other side of the partition as a main part; the first oil way is provided with a first oil inlet and a first oil outlet which are respectively connected with a first oil inlet pipe and a first oil outlet pipe, and the second oil way is provided with a second oil inlet and a second oil outlet which are respectively connected with a second oil inlet pipe and a second oil outlet pipe.
5. A compression molding door panel press as claimed in claim 1, wherein said synchronized closing mechanism includes a first support arm, a second support arm, a support shaft, a spring, a stop plate; one end of the first support arm is hinged with the support plate at the top shaft end of the oil cylinder through a fixing seat; one end of the second supporting arm is hinged with the top plate through a fixed seat, and the other end of the second supporting arm is movably connected with one end of the first supporting arm through a rotating shaft; the support shaft penetrates through the second support arm, and threads are arranged at two ends of the support shaft; one end of the supporting shaft is connected with the connecting shaft on the fixed seat through threads so as to be connected with the support plate; the other end is movably connected with a baffle plate through threads; the spring cup joints the back shaft, and spring one end top touches the resistance board, and the second support arm is touched to the other end top.
6. The hot-pressing device for the molded door panel as claimed in claim 1, wherein the waste gas collecting mechanism I comprises a power mechanism, a guide rail II, a fixing frame, a connecting arm, a flexible pipeline and a collecting pipeline; the guide rails II are fixed on two sides of the rack; a plurality of groups of fixed frames are arranged on the guide rail II in an up-and-down manner; connecting arms are arranged on two sides of the fixed frames, and the connecting arms of every two adjacent fixed frames are hinged together; two ends of the fixed frame are movably connected with a guide rail II; two ends of the top fixing frame close to the top plate are fixed on the guide rail II through bolts; flexible pipelines are fixedly arranged between every two adjacent fixed frames and are mutually connected and communicated; the flexible pipeline is provided with a communicating pipe orifice which is connected with the collecting pipeline; the collecting pipeline is made of flexible materials and communicated with the main recovery pipeline; the power mechanism comprises a gear, a motor and a rack; the rack is fixed on the rack and positioned on one side of the guide rail II; the motor is fixed on the fixing frame at the bottommost part and is positioned in the flexible pipeline, and a gear is arranged at the output shaft end of the motor and is meshed with the rack.
7. The hot-pressing device for the molded door panel as claimed in claim 1, wherein the waste gas collecting mechanism II comprises a cover plate, a motor, a first screw rod, a sealing plate and a second screw rod; the cover plates are positioned at two ends of the support plate and fixed on the frame, the cover plates cover two ends of the support plate in a sealing manner, and the top of each cover plate is provided with a pipe orifice connected with the main recovery pipeline; the plate surface of the cover plate is provided with a plurality of material taking ports, and the two sides of the cover plate are provided with a plurality of through grooves corresponding to the number and the positions of the material taking ports; the first screw rods are respectively provided with a group on two sides of the cover plate through fixed seats, and the second screw rods are fixed on the top of the cover plate through the fixed seats; two ends of the first screw rod and the second screw rod are simultaneously provided with conical gears which are meshed with each other; the sealing plate is positioned in the cover plate and covers the closed material taking port, the two ends of the sealing plate are provided with fixing arms which penetrate through the through grooves, and the first screw rods penetrate through the fixing arms and are movably connected with each other through threads; one end of one group of first screw rods is provided with a motor, and the shaft end of the motor is provided with a bevel gear and is meshed with the bevel gear at the shaft end of the first screw rods.
8. The hot pressing device for the molded door panel as claimed in claim 1, wherein the waste gas adsorption mechanism is provided with an adsorption pipeline I and an adsorption pipeline II; an access door and an active carbon adsorption plate are arranged on the adsorption pipeline I and the adsorption pipeline II at the same time; the activated carbon adsorption plate is wavy; a diversion plate and an air cylinder are arranged at the intersection of the adsorption pipeline I and the adsorption pipeline II; the turning plate is positioned inside the pipeline, and the cylinder is fixed outside the pipeline; one end of the turning plate is provided with a rotating shaft, one end of the rotating shaft penetrates through the pipeline and is mutually connected through a bearing, and the end part of the rotating shaft is provided with a gear; a toothed plate and a guide rail III are arranged at the top shaft of the cylinder; one end of the toothed plate is fixedly connected with a cylinder top shaft; the guide rail III is fixed on the outer wall of the pipeline; the toothed plate is positioned in the guide rail III and is meshed with the gear on the rotating shaft.
9. A hot pressing process for a molded door panel is characterized by comprising the following steps: the method comprises the following specific steps;
1) treating the water content of the molded door panel under the conditions of constant temperature and constant humidity to uniformly distribute the water in the molded door panel; the water content is within 7-12%, so that the water content of the molded door panel is not changed under the influence of the environment in the pressing process;
2) sanding the surface of the molded door panel; sanding the surface of the molded door panel by using a sander; the phenomena of edge collapse, sand marks and the like are not required to be produced during sanding; removing the surface of the compact hardened layer of the molded door panel;
3) placing the panel on a hot-press forming machine for hot-press forming through a feeding and conveying device;
4) maintaining the panel after molding; cooling the plate subjected to hot pressing on a plate frame for 16-19 minutes, and then stacking, wherein the specific implementation is 18 minutes; the stacking height is within 100 +/-10 cm; then placing the mixture in a dark place without wind, stacking the mixture orderly, and naturally curing the mixture for 3 to 5 days.
10. The hot pressing process for a molded door panel according to claim 1, wherein the hot pressing temperature in step 3) is controlled at 160-180 ℃ with a tolerance of ± 3 ℃, preferably at 170 ℃; the unit pressure of hot pressing is 1.4-1.65 Mpa; preferably, the pressure is controlled to be 1.5 MPa; the hot pressing time is between 170 and 190 seconds, and preferably, the time is set to 175 seconds; firstly, baking the panel in a hot press for 3-5 minutes, inching the hot press to close by adopting a inching slow method, and inching for 4-5 times until the hot press is completely closed; then, the hot press is inching by adopting a method of inching slowly, the air is discharged for 4-5 times, and the hot press is opened after the full exhaust pressure is zero; and (3) carrying out die assembly and die opening by adopting a inching slow-up and inching slow-down method.
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| CN202011273409.2A CN112388783B (en) | 2020-11-13 | 2020-11-13 | Hot-pressing device and process for molded door panel |
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| CN202011273409.2A CN112388783B (en) | 2020-11-13 | 2020-11-13 | Hot-pressing device and process for molded door panel |
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| CN112388783B (en) | 2022-06-24 |
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