CN114233158A - Front heat-preservation door mechanism of thermoforming machine and opening and closing method - Google Patents
Front heat-preservation door mechanism of thermoforming machine and opening and closing method Download PDFInfo
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- CN114233158A CN114233158A CN202111442920.5A CN202111442920A CN114233158A CN 114233158 A CN114233158 A CN 114233158A CN 202111442920 A CN202111442920 A CN 202111442920A CN 114233158 A CN114233158 A CN 114233158A
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- thermal insulation
- support frame
- front heat
- preservation
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- 238000004321 preservation Methods 0.000 title claims abstract description 104
- 230000007246 mechanism Effects 0.000 title claims abstract description 70
- 238000003856 thermoforming Methods 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000009413 insulation Methods 0.000 claims abstract description 56
- 230000009471 action Effects 0.000 claims description 19
- 238000010438 heat treatment Methods 0.000 claims description 15
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 229920000742 Cotton Polymers 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000008569 process Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- 230000007547 defect Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
- E06B5/10—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes
- E06B5/16—Fireproof doors or similar closures; Adaptations of fixed constructions therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
- B21D22/022—Stamping using rigid devices or tools by heating the blank or stamping associated with heat treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/04—Frames; Guides
- B30B15/041—Guides
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/50—Power-operated mechanisms for wings using fluid-pressure actuators
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/32—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing
- E06B3/50—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing with more than one kind of movement
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2201/00—Constructional elements; Accessories therefor
- E05Y2201/60—Suspension or transmission members; Accessories therefor
- E05Y2201/622—Suspension or transmission members elements
- E05Y2201/644—Flexible elongated pulling elements
- E05Y2201/656—Chains
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2999/00—Subject-matter not otherwise provided for in this subclass
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The invention provides a front thermal insulation door mechanism of a thermoforming machine and a switching method, wherein the front thermal insulation door mechanism comprises a left upright post I, a right upright post I, a cross beam I, a front thermal insulation door support frame, a traction oil cylinder, a chain wheel device and a roller path I; the inner sides of the left upright post I and the right upright post I are respectively provided with at least two raceways I which are connected in series, the upper section of each raceway I is a straight line section, and the lower section of each raceway I is an arc section facing the door closing direction; the front heat-preservation door is arranged on a front heat-preservation door support frame, at least two rollers are arranged on two sides of the front heat-preservation door support frame and fall into independent roller paths I respectively, and the front heat-preservation door support frame can continuously move along an arc section after falling to a height close to the door closing height along the roller paths I, so that the front heat-preservation door can be closed; the end part of a piston rod of the traction oil cylinder is connected with a chain, the chain is connected to the upper end of the front heat-insulating door support frame after bypassing a chain wheel device arranged on the cross beam I, and the front heat-insulating door support frame is driven to move up and down through the telescopic motion of the piston rod of the oil cylinder, so that the front heat-insulating door can be opened and closed.
Description
Technical Field
The invention belongs to the technical field of thermoforming equipment, and particularly relates to a front heat-preservation door mechanism of a thermoforming machine and a switching method.
Background
The hot forming machine is hot forming equipment, is mainly used in the fields of aerospace, high-speed rail, testing equipment of colleges and universities and the like, and is used for processing thin-wall parts which need to be light and are not easy to deform.
At present, the guide of the front heat preservation door of the thermoforming machine in the market in the ascending and descending process is realized by small square steel of a large square steel sleeve, the phenomenon of abrasion and clamping stagnation is easily generated, and an oil cylinder is required to push and pull the front heat preservation door in the horizontal direction after the front heat preservation door descends to realize the opening and closing action. Therefore, it is necessary to develop a thermoforming machine, and provide a front thermal insulation door mechanism of the thermoforming machine, which solves the problem of rubbing and sticking generated in the process of up and down of the front thermal insulation door, and improves the door opening and closing efficiency.
Disclosure of Invention
In order to overcome the defects in the prior art, the inventor of the invention makes a keen study, and provides a thermoforming machine front heat-preservation door mechanism and a door opening and closing method, so that the defects in the prior art are overcome, the structure and the action process are simple, the problem that the thermoforming machine front heat-preservation door is rubbed and stuck in the up-and-down process in the existing market is effectively solved, a horizontal oil cylinder is omitted, the cost is saved, the action is reduced, and the door opening and closing speed is improved, thereby completing the invention.
The technical scheme provided by the invention is as follows:
on the first aspect, a front thermal insulation door mechanism of a thermoforming machine comprises a left upright post I, a right upright post I, a cross beam I, a front thermal insulation door support frame, a traction oil cylinder, a chain wheel device and a roller path I; the left upright post I and the right upright post I are connected through a cross beam I and are fixed to a press; the inner sides of the left upright post I and the right upright post I are respectively provided with at least two raceways I which are connected in series, the upper section of each raceway I is a straight line section, and the lower section of each raceway I is an arc section facing the door closing direction; the front heat-preservation door is arranged on a front heat-preservation door support frame through a pin shaft, at least two rollers are arranged on two sides of the front heat-preservation door support frame and respectively fall into independent roller paths I, the front heat-preservation door support frame can continuously move along an arc section after falling to a height close to the door closing height along the roller paths I, so that the horizontal forward pressing action of the front heat-preservation door can be realized, and the front heat-preservation door is closed; the traction oil cylinder is installed on the left side of the left upright post I or the right side of the right upright post I, the end part of a piston rod of the oil cylinder is connected with a chain, the chain is connected to the upper end of a front heat-preservation door support frame after bypassing a chain wheel device installed on the cross beam I, and the front heat-preservation door support frame is driven to move up and down through the telescopic motion of the piston rod of the oil cylinder, so that the front heat-preservation door is opened and closed.
In a second aspect, a method for opening and closing a front thermal door mechanism of a thermoforming machine comprises the following steps:
an oil cylinder piston rod of the traction oil cylinder retracts to drive the front heat-preservation door and the front heat-preservation door support frame to retract and then ascend along the arc section of the roller path, and the door opening action is finished;
and an oil cylinder piston rod of the traction oil cylinder extends out to drive the front heat-insulating door and the front heat-insulating door support frame to descend and then move forwards along the arc section of the raceway, so that the door closing action is completed.
According to the front heat-preservation door mechanism of the thermoforming machine and the opening and closing method, the invention has the following beneficial effects:
(1) the thermoforming machine front heat-preservation door mechanism and the opening and closing method provided by the invention overcome the defects of the prior art, are simple in structure and action process, effectively solve the problem of friction and clamping stagnation in the up-and-down process of the thermoforming machine front heat-preservation door in the existing market, save a horizontal oil cylinder, save the cost, reduce the action and improve the door opening and closing speed.
(2) The front heat-preservation door mechanism and the opening and closing method of the thermoforming machine are matched with the rear heat-preservation door mechanism, the left heat-preservation door mechanism, the right heat-preservation door mechanism and the opening and closing method, so that the whole thermoforming machine is novel in structure, and safe and rapid use of the thermoforming machine is realized.
Drawings
FIG. 1 is a layout of a thermoforming machine apparatus as a whole;
FIG. 2 is a layout of the thermoforming machine apparatus as a whole (with the press and upper and lower work platforms removed);
FIG. 3 is a schematic view of the press and the work platform;
FIG. 4 is a view of the front thermal door mechanism (closed state);
FIG. 5 is a view of a front thermal door support bracket;
FIG. 6 is a raceway diagram of a front insulated door mechanism;
FIG. 7 is a front view and a side view of the front thermal insulating door;
FIG. 8 is a roller diagram of the front thermal door mechanism;
FIG. 9 is a fall arrest safety mechanism diagram of the front thermal door mechanism;
FIG. 10 is a rear insulated door mechanism (closed door state) view;
FIG. 11 is a view of a rear insulated door support bracket;
FIG. 12 is a raceway diagram of the rear thermal door mechanism;
FIG. 13 is a front view, a side view, an A-A view and a C-C view of the rear thermal insulating door;
fig. 14 is a connecting mechanism diagram of the rear thermal door mechanism.
Description of the reference numerals
1-left upright post I; 2-right upright post I; 3-a beam I; 4-front heat preservation door; 5-front thermal insulation door support frame; 6-a traction oil cylinder; 7-a chain; 8-a sprocket arrangement; 9-raceway I; 10-anti-falling safety mechanism; 11-a pin shaft; 12-anti-falling holes; 101-left upright II; 102-right upright II; 103-beam II; 104-rear heat preservation door; 105-rear thermal insulation door support frame; 106-lift cylinder; 107-raceway II; 108-push-pull oil cylinder; 109-limit supporting wheels; 110-a floating support wheel; 111-a connection mechanism; 112-X direction roller; 113-Y direction roller.
Detailed Description
The features and advantages of the present invention will become more apparent and appreciated from the following detailed description of the invention.
The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
The invention provides a front heat-preservation door mechanism of a thermoforming machine, wherein a main body of the thermoforming machine comprises a press, an upper heating working platform, a lower heating working platform, a front heat-preservation door mechanism, a rear heat-preservation door mechanism, a left heat-preservation door mechanism and a right heat-preservation door mechanism, wherein the four parts of the front heat-preservation door mechanism, the rear heat-preservation door mechanism, the left heat-preservation door mechanism and the right heat-preservation door mechanism are folded to surround the upper heating working platform and the lower heating working platform to form a closed thermoforming treatment cavity, as shown in figures 1 and 2.
As shown in fig. 3, the press includes an upper beam, a lower beam, and a plurality of columns between the upper and lower beams; the upper beam is provided with a main oil cylinder, an upper sliding block is fixed below a telescopic rod of the main oil cylinder, and the upper heating working platform is fixed below the upper sliding block and is driven by the main oil cylinder to lift or descend; a lower cushion block is arranged on the lower cross beam, and a lower heating working platform is supported on the lower cushion block; an upper platform control box is fixed on one side of the upper heating working platform facing the rear heat-insulating door, and a lower platform control box is fixed on one side of the lower heating working platform facing the front heat-insulating door. Preferably, the upper sliding block is provided with at least one guide post parallel to the telescopic rod of the main oil cylinder, and the guide post penetrates through the upper cross beam to guide the movement of the telescopic rod of the main oil cylinder.
As shown in fig. 4 to 9, the front thermal insulation door mechanism of the thermoforming machine comprises a left upright post I1, a right upright post I2, a cross beam I3, a front thermal insulation door 4, a front thermal insulation door support frame 5, a traction oil cylinder 6, a chain 7, a chain wheel device 8 and a roller path I9; the left upright post I1 and the right upright post I2 are connected through a cross beam I3 and fixed on a press; at least two series raceways I9 are respectively arranged on the inner sides of the left upright post I1 and the right upright post I2, the upper section of the raceway I9 is a straight line section, and the lower section of the raceway I9 is an arc section facing the door closing direction; the front heat-preservation door 4 is installed on a front heat-preservation door support frame 5 through a pin shaft 11, at least two rollers are installed on two sides of the front heat-preservation door support frame 5 and fall into independent roller paths I9 respectively, the front heat-preservation door support frame 5 descends to a height close to the door closing height along the roller paths I9 and then continues to advance along an arc section, so that the horizontal forward pressing action of the front heat-preservation door can be realized, and the front heat-preservation door is closed; the traction oil cylinder 6 is preferably installed on the left side of the left upright post I1 or the right side of the right upright post I2, the end part of the piston rod of the oil cylinder is connected with the chain 7, the chain 7 bypasses the chain wheel device 8 installed on the cross beam I3 and then is connected to the upper end of the front heat-insulating door support frame 5, and the front heat-insulating door support frame 5 is driven to move up and down through the telescopic motion of the piston rod of the oil cylinder to realize opening and closing of the front heat-insulating door.
In a preferred embodiment, as shown in fig. 4, the left upright post I1, the right upright post I2 and the cross beam I3 are square steel pipe welded pieces, and the three structural members are connected to form a front thermal insulation door frame and are fixedly connected with an upper cross beam and a lower cross beam of a press through threaded connectors.
In a preferred embodiment, as shown in fig. 4, two series raceways I9 are respectively installed on the inner sides of the left upright I1 and the right upright I2, two rollers are respectively installed on two sides of the front thermal insulation door supporting frame 5, and the rollers respectively fall into the two raceways I9. As shown in fig. 6, the raceway I9 is formed on a raceway mounting plate, the raceway mounting plate is provided with oblong holes, the raceway mounting plate is fixed on the inner sides of the left upright I1 and the right upright I2 through fasteners penetrating the oblong holes, and the oblong holes are designed to adjust the distance between two adjacent raceways I9.
In a preferred embodiment, as shown in fig. 7, the front thermal insulation door 4 is a welded frame framework filled with a dense high-temperature-resistant ceramic fiber cotton integrated structure.
In a preferred embodiment, the end part of the piston rod of the oil cylinder is connected with 2-3 chains 7, the chains 7 are fixed to different parts of the upper end of the front heat preservation door support frame 5 through threaded rod pieces, and the threaded rod pieces are connected in a mode that fine adjustment is favorably realized during assembly. The traction oil cylinder 6 stretches the front heat-insulating door support frame 5 through a chain 7 and a chain wheel device 8, and the front heat-insulating door support frame 5 rolls in the roller path 9 through a roller. The extension length of the piston rod of the oil cylinder when extending out to enable the front heat preservation door 4 to descend is the distance from the front heat preservation door 4 to a heating working platform below the thermoforming machine.
In a preferred embodiment, as shown in fig. 9, the left upright I1 and the right upright I2 are provided with an anti-falling safety mechanism 10, the anti-falling safety mechanism 10 is an air cylinder push-pull pin shaft structure (a connecting pin shaft is arranged on an air cylinder rod), the extending direction of the pin shaft faces to the front thermal insulation door support frame 5, the two sides of the upper end of the front thermal insulation door support frame 5 are provided with anti-falling holes 12, when the front thermal insulation door 4 is opened for a long time, the pin shaft of the anti-falling safety mechanism 10 can be extended into the anti-falling holes to prevent the front thermal insulation door 4 from falling, and the pin shaft is retracted before the door falls.
In the invention, the door opening and closing action of the front heat preservation door comprises the following steps:
(i) an oil cylinder piston rod of the traction oil cylinder 6 retracts to drive the front heat-preservation door 4 and the front heat-preservation door support frame 5 to retract and then ascend along the arc section of the roller path 9;
(ii) after the front thermal insulation door 4 reaches the highest position, the anti-falling safety mechanism 10 ejects a pin shaft into an anti-falling hole 12 of the front thermal insulation door support frame 5 to complete the door opening action;
(iii) the anti-falling safety mechanism 10 retracts to the pin shaft;
(iv) the cylinder piston rod of the traction cylinder 6 extends out to drive the front thermal insulation door 4 and the front thermal insulation door support frame 5 to descend and then move forward for a certain distance along the arc section of the raceway 9, so that the door closing action is completed.
In the present invention, as shown in fig. 10 to 14, the rear thermal insulation door mechanism of the thermoforming machine includes a left upright post II 101, a right upright post II 102, a cross beam II 103, a rear thermal insulation door 104, a rear thermal insulation door support frame 105, a lifting cylinder 106, a push-pull cylinder 108 and a raceway II 107; the left upright post II 101 and the right upright post II 102 are connected through a cross beam II 103 to form a rear heat-preservation door frame and are fixed to a press; roller paths II 107 are respectively arranged on the inner sides of the left upright post II 101 and the right upright post II 102, and the roller paths II 107 are linear rails; at least one roller is arranged on each of two sides of the rear heat-preservation door support frame 105 and falls into the roller path II 107, the lower end of the rear heat-preservation door support frame 105 is connected with a piston rod of the lifting oil cylinder 106, the lower end of the lifting oil cylinder 106 is arranged in a pit, the non-clamping fit between the rear heat-preservation door support frame 105 and a rear heat-preservation door frame is realized under the pushing of the lifting oil cylinder 106, and the rear heat-preservation door 104 is lifted to the bottom end face of the upper heating platform control box by the extending length of the piston rod of the lifting oil cylinder 106; the rear heat preservation door 104 is mounted on the rear heat preservation door support frame 105, the back side of the rear heat preservation door is connected with the rear heat preservation door support frame 105 through at least one push-pull oil cylinder 108, and after the rear heat preservation door 104 is lifted to the door closing height, the door closing action is completed under the driving of the push-pull oil cylinder 108.
In a preferred embodiment, as shown in fig. 10, the left upright post II 101, the right upright post II 102 and the cross beam II 103 are square steel pipe welded pieces, and the rear heat preservation door frame formed by connecting the three structural members is connected and fixed with the upper cross beam and the lower cross beam of the press through threaded connectors.
In a preferred embodiment, as shown in fig. 13, the rear thermal insulation door 104 is a welded frame skeleton filled with a dense high-temperature-resistant ceramic fiber cotton integrated structure.
Further, as shown in fig. 13, a limiting support wheel 109 and a floating support wheel 110 are installed below the rear thermal insulation door 104, the limiting support wheel 109 is a concave wheel, the floating support wheel 110 is a conventional roller wheel, the limiting support wheel 109 and the floating support wheel 110 respectively fall on a convex support plate and a flat support plate of the rear thermal insulation door support frame 105, and the rear thermal insulation door 104 is supported by the push-pull of the push-pull oil cylinder 108 to move on the convex support plate and the flat support plate.
Further, as shown in fig. 10 and 14, the back surface of the rear thermal insulation door 104 is connected to the rear thermal insulation door support frame 105 through at least one push-pull oil cylinder 108, and is also connected to the rear thermal insulation door support frame 105 through a connection mechanism 111, the connection mechanism 111 is a left-right screw bolt nut structure, the connection distance can be adjusted, the length after extension is the distance of the movement required for closing the rear thermal insulation door 104, and both ends of the connection mechanism 111 are rotatably connected to the rear thermal insulation door 104 and the rear thermal insulation door support frame 105 through pin shafts, and realize the door closing action together with the push-pull oil cylinder 108.
In a preferred embodiment, as shown in fig. 11, the rear thermal door supporting frame 105 is a welded frame of square steel pipes, the rollers mounted on both sides include an X-direction roller 112 mounted in the X direction and a Y-direction roller 113 mounted in the Y direction, and the rollers roll in the rolling channel II 107 to prevent rubbing.
In the invention, the door opening and closing action of the rear heat preservation door comprises the following steps:
the lifting oil cylinder 106 extends out, the rear heat preservation door 104 and the heat preservation door supporting frame 105 ascend, the push-pull oil cylinder 108 extends out after the rear heat preservation door 104 ascends in place, and the rear heat preservation door 104 is closed;
the push-pull oil cylinder 108 retracts, the rear heat preservation door 104 and the heat preservation door support frame 105 retract, the lifting oil cylinder 106 retracts, the rear heat preservation door 104 and the heat preservation door support frame 105 fall, and the rear heat preservation door 104 is opened.
In the present invention, as shown in fig. 1 and 2, the left thermal insulating door mechanism and the right thermal insulating door mechanism on both sides of the front thermal insulating door mechanism and the rear thermal insulating door mechanism are the same, and the right thermal insulating door mechanism is taken as an example for explanation.
The right heat-preservation door mechanism comprises a right heat-preservation door and a clamping plate structure, the right heat-preservation door mechanism is fixedly arranged on the stand columns on two sides of the press through at least two stages of clamping plate structures, the clamping plate structure is of a split structure and comprises two sub-clamping plates, and the sub-clamping plates are butted to form a clamping plate hole capable of clamping the stand columns; and a hoisting structural member is arranged on the uppermost clamping plate structure, the hoisting structural member is connected with the upper end of the right heat-insulating door through a chain, a push-pull oil cylinder is arranged on at least one clamping plate structure, and the right heat-insulating door is opened and closed under the push-pull action of the oil cylinder.
Preferably, the right heat preservation door mechanism comprises at least three-stage clamping plate structures, wherein a thrust valve is mounted on at least one stage of clamping plate structure, the thrust valve is a bolt and nut assembly, a nut is fixed on the clamping plate structure, and the bolt extends out to be in contact with the opened right heat preservation door in length.
The integral working process of the thermal insulation door of the thermoforming machine is as follows: a workpiece is placed on the lower heating working platform, the upper heating working platform is driven by the press to descend to a proper position, the rear heat-preservation door is lifted to the upper heating platform, the front heat-preservation door is descended to the lower heating platform, the left heat-preservation door and the right heat-preservation door press the side surfaces of the front heat-preservation door and the rear heat-preservation door, the left heat-preservation door and the right heat-preservation door are closed, and the heat-preservation doors finish the closing process; when the workpiece in the closed cavity is subjected to thermal processing, the left and right heat-insulating doors are slightly opened horizontally, the front and rear heat-insulating doors are not pressed, then the front heat-insulating door is lifted, the rear heat-insulating door is descended, the closed cavity is opened, and the workpiece is moved out, so that the whole process of opening the heat-insulating doors is completed.
The invention has been described in detail with reference to specific embodiments and illustrative examples, but the description is not intended to be construed in a limiting sense. Those skilled in the art will appreciate that various equivalent substitutions, modifications or improvements may be made to the technical solution of the present invention and its embodiments without departing from the spirit and scope of the present invention, which fall within the scope of the present invention. The scope of the invention is defined by the appended claims.
Those skilled in the art will appreciate that those matters not described in detail in the present specification are well known in the art.
Claims (10)
1. A front thermal insulation door mechanism of a thermoforming machine is characterized by comprising a left upright post I (1), a right upright post I (2), a cross beam I (3), a front thermal insulation door (4), a front thermal insulation door support frame (5), a traction oil cylinder (6), a chain (7), a chain wheel device (8) and a roller path I (9); the left upright post I (1) and the right upright post I (2) are connected through a cross beam I (3) and fixed on a press; at least two series raceways I (9) are respectively arranged on the inner sides of the left upright post I (1) and the right upright post I (2), the upper section of each raceway I (9) is a straight line section, and the lower section of each raceway I (9) is an arc section facing the door closing direction; the front heat-preservation door (4) is arranged on a front heat-preservation door support frame (5), at least two rollers are arranged on two sides of the front heat-preservation door support frame (5) and fall into independent roller paths I (9) respectively, the front heat-preservation door support frame (5) can continuously move along an arc section after descending to a height close to the door closing height along the roller paths I (9), and the front heat-preservation door can be horizontally pressed forwards and closed; the traction oil cylinder (6) is installed on the left side of the left upright post I (1) or the right side of the right upright post I (2), the end part of a piston rod of the oil cylinder is connected with the chain (7), the chain (7) is connected to the upper end of the front heat-insulating door support frame (5) after bypassing the chain wheel device (8) installed on the cross beam I (3), and the front heat-insulating door support frame (5) is driven to move up and down through the telescopic motion of the piston rod of the oil cylinder to realize opening and closing of the front heat-insulating door.
2. The front thermal insulation door mechanism of the thermoforming machine as claimed in claim 1, wherein the left upright I (1), the right upright I (2) and the cross beam I (3) are square steel pipe welded pieces, and the three structural pieces are connected to form a front thermal insulation door frame and are fixedly connected with the upper cross beam and the lower cross beam of the press through threaded connectors.
3. The front thermal insulation door mechanism of the thermoforming machine as claimed in claim 1, wherein two series-connected roller paths I (9) are installed inside the left upright I (1) and the right upright I (2), two rollers are installed on two sides of the front thermal insulation door support frame (5), and the rollers fall into the two roller paths I (9) respectively.
4. The front thermal insulation door mechanism of the thermoforming machine as claimed in claim 3, wherein the raceway I (9) is formed on a raceway mounting plate, and the raceway mounting plate is provided with oblong holes and is fixed on the inner sides of the left upright I (1) and the right upright I (2) through fasteners penetrating the oblong holes.
5. The front thermal insulation door mechanism of the thermoforming machine as claimed in claim 1, wherein the front thermal insulation door (4) is an integrated structure of a welded frame skeleton filled with dense high-temperature-resistant ceramic fiber cotton.
6. The front thermal insulation door mechanism of the thermoforming machine as claimed in claim 1, wherein 2-3 chains (7) are connected to the end of the piston rod of the oil cylinder, and the chains (7) are fixed to different positions of the upper end of the front thermal insulation door support frame (5) through threaded rod pieces.
7. The front thermal insulation door mechanism of the thermoforming machine as claimed in claim 1, wherein the extension length of the oil cylinder piston rod when extending to enable the front thermal insulation door (4) to descend is the distance from the front thermal insulation door (4) to a heating working platform below the thermoforming machine.
8. The thermoforming machine front heat-preservation door mechanism as claimed in claim 1, wherein the left upright post I (1) and the right upright post I (2) are provided with anti-falling safety mechanisms (10), each anti-falling safety mechanism (10) is of a cylinder push-pull pin shaft structure, a pin shaft extends towards the front heat-preservation door support frame (5), anti-falling holes (12) are arranged on two sides of the upper end of the front heat-preservation door support frame (5), and pin shafts of the anti-falling safety mechanisms (10) extend into the anti-falling holes to ensure that the front heat-preservation door (4) is opened for a long time.
9. A method for opening and closing a front heat preservation door mechanism of a thermoforming machine is characterized by comprising the following steps:
an oil cylinder piston rod of the traction oil cylinder (6) retracts to drive the front heat preservation door (4) and the front heat preservation door support frame (5) to retract and rise along the arc section of the roller path 9, and the door opening action is finished;
an oil cylinder piston rod of the traction oil cylinder (6) extends out to drive the front heat preservation door (4) and the front heat preservation door support frame (5) to descend and then move forward along the arc section of the roller path 9, so that the door closing action is completed.
10. The opening and closing method of the front thermal insulation door mechanism of the thermoforming machine as claimed in claim 9, characterized in that when the front thermal insulation door mechanism is provided with the anti-falling safety mechanism (10), the anti-falling safety mechanism (10) ejects the pin shaft into the anti-falling hole (12) of the front thermal insulation door support frame (5) after the front thermal insulation door (4) rises to the highest position during the door opening action; before the door is opened, the anti-falling safety mechanism (10) retracts into the pin shaft.
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| CN202111442920.5A CN114233158B (en) | 2021-11-30 | 2021-11-30 | Thermoforming machine |
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| CN202111442920.5A CN114233158B (en) | 2021-11-30 | 2021-11-30 | Thermoforming machine |
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| CN115559647A (en) * | 2022-10-27 | 2023-01-03 | 北京航星机器制造有限公司 | Door device with adjustable closing height and adjusting method thereof |
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| CN114233158B (en) | 2024-01-09 |
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