A physical foaming device for a green body and a demolding method thereof

Abstract

The application relates to the technical field of physical foaming, in particular to a physical foaming device for an embryo and a stripping method thereof. The device comprises a machine shell, a top frame fixedly installed on the machine shell, a hydraulic cylinder arranged on the top frame, an upper mold fixedly installed on the telescopic end of the hydraulic cylinder, a lower mold fixedly installed on the machine shell, a movable mechanism jointly arranged between the upper mold and the lower mold, two groups of spraying mechanisms arranged on the movable mechanism, an intercepting mechanism jointly arranged between the top frame and the two groups of spraying mechanisms, and a discharging mechanism arranged on the upper mold. The upper mold continues to move upwards, the upper mold drives the push plate to move upwards through the gas storage shell and the second spring, the push plate drives the push rod to contact the abutting frame, the push plate moves out of the upper mold, the push plate can push the foaming material out of the inner side of the upper mold, and thus the stripping work of the foaming material is facilitated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of physical foaming, in particular to a physical foaming device for a blank and a demolding method thereof. BACKGROUND

[0002] The physical foaming device for a blank refers to a device specially designed to introduce bubbles by physical methods (such as supercritical gas) and make them expand to finally form a foam structure for a "blank" material in an uncured, semi-finished state.

[0003] A self-lifting foaming device capable of overturning is disclosed in Chinese Patent No. CN215242384U, which comprises a lower mold, a middle mold, an upper mold, a lifting core mold, a cushion block, a core mold fixing plate, and a breathable cushion material. The two ends of the middle mold are connected with the lower mold and the upper mold, respectively, and the lower mold, the middle mold, and the upper mold enclose a containing cavity. The core mold fixing plate is connected with the upper mold, and there is a lifting space for the lifting core mold between the core mold fixing plate and the upper mold. The cushion block is installed on the core mold fixing plate. The lifting core mold comprises a guide rod and a pressing plate connected with each other. The pressing plate is embedded in the containing cavity. A guide hole for inserting the guide rod is formed in the upper mold, and the top end of the guide rod is opposite to the cushion block.

[0004] The above-mentioned patent can effectively discharge the gas inside the foaming material, avoid phenomena such as air entrapment, lack of glue, and scars, and form a foam material with a special-shaped structure surface and multiple heights.

[0005] However, the above-mentioned patent has the following disadvantages: the foaming material is easy to adhere to the inner wall of the mold, manual intervention or forced ejection is required during demolding, which can easily cause damage or deformation of the blank, the adhesion problem between the material and the mold has not been solved, the blank can be easily torn due to local adhesion during demolding, there is a lack of a dynamic spraying mechanism, the release agent is difficult to cover the complex mold cavity, which affects the demolding effect, and there is a lack of a falling prevention locking structure during the lifting process of the upper mold, which can cause the upper mold to accidentally press down if the hydraulic system fails, resulting in equipment damage or safety accidents.

[0006] Therefore, the present application provides a physical foaming device for a blank and a demolding method thereof. SUMMARY

[0007] The present application aims to provide a physical foaming device for a blank and a demolding method thereof to solve the problems raised in the background art.

[0008] The technical scheme of the present application is: a physical foaming device for an embryo body, comprising a casing, a top frame fixedly installed on the casing, a hydraulic cylinder provided on the top frame, an upper mold fixedly installed on the telescopic end of the hydraulic cylinder, a lower mold fixedly installed on the casing, a movable mechanism jointly provided between the upper mold and the lower mold, two groups of injection mechanisms provided on the movable mechanism, an intercepting mechanism jointly provided between the top frame and the two groups of injection mechanisms, and a discharging mechanism provided on the upper mold;

[0009] The discharging mechanism comprises two gas storage shells fixedly installed on the upper mold, two second springs connected to the inner side of the top wall of each gas storage shell, a push plate jointly connected to the end portions of the two second springs and slidingly connected with the upper mold, and an abutting assembly jointly provided between the top frame and the push plate.

[0010] A vibration assembly is jointly provided between the gas storage shell and the push plate, a plurality of piston frames are fixedly installed on the upper mold, a piston cylinder slidingly connected with the piston frames is fixedly installed on the lower mold, an air inlet one-way valve is provided on the piston cylinder, a gas conveying pipe fixedly installed with the gas storage shell is fixedly installed on the piston cylinder, and an air passage assembly is jointly provided between the movable mechanism and the gas storage shell.

[0011] Further, a first feeding pipe and a second feeding pipe are fixedly installed on the upper mold.

[0012] Further, the movable mechanism comprises a first movable arm hingedly installed on the upper mold, a second movable arm hingedly connected with the first movable arm is hingedly installed on the lower mold, a fixed shell is fixedly installed on each first movable arm, a telescopic block is slidingly installed on the inner side of each fixed shell, and a supporting rod is fixedly installed on the telescopic block.

[0013] Further, the injection mechanism comprises an interface fixedly installed between the two supporting rods, a conveying pipe is connected to the interface, and a spray shell is connected to the end portion of the conveying pipe.

[0014] Further, the injection mechanism comprises a supporting assembly provided between the top frame and the spray shell, the supporting assembly comprises two fixed blocks fixedly installed on the top frame, a torsional spring is connected to each fixed block, an annular block is connected to the end portion of the torsional spring, a connecting rod fixedly connected with the spray shell is rotatably installed on the annular block, and a triggering rod is fixedly installed on the spray shell.

[0015] Further, the intercepting mechanism comprises two abutting blocks fixedly installed on the two interfaces respectively, two groups of side plates are fixedly installed on the top frame, a first spring is connected to each side plate, an edge block is connected to the end portion of the first spring, a guide shell fixedly connected with the top frame is fixedly installed on the edge block, the guide shell abuts against the abutting block, and a clamping block is fixedly installed on the guide shell.

[0016] Further, the abutting assembly comprises an abutting frame fixedly installed on the top frame, and a pushing rod is fixedly installed on the pushing plate.

[0017] Further, the vibrating assembly comprises two inner shells symmetrically fixedly installed on the inner wall of the gas storage shell, the inner wall of each inner shell is connected with a plurality of third springs, the end portions of the plurality of third springs are jointly connected with a clamping plate in sliding connection with the inner shell, and two sawtooth frames in clamping connection with the clamping plate are symmetrically fixedly installed on the pushing plate.

[0018] Further, the ventilation assembly comprises a plurality of force receiving rods respectively hingedly installed on the plurality of first movable arms, the end portions of every two force receiving rods are jointly hingedly installed with a plate frame, two round rods are fixedly installed on the plate frame, and the end portion of each round rod is fixedly installed with a blocking block in sliding connection with the pushing plate.

[0019] A physical foaming demolding method for an embryo, comprising the following steps:

[0020] In step S1, the telescopic end of the hydraulic cylinder is controlled to extend, so that the telescopic end of the hydraulic cylinder drives the upper mold to move downward. During the movement, the demolding agent delivery device connected with the spraying mechanism is controlled to deliver the demolding agent into the spraying mechanism. Under the driving of the movable mechanism, the spraying mechanism adjusts the angle while spraying the demolding agent on the inner wall of the upper mold.

[0021] In step S2, during the downward movement of the upper mold, the upper mold drives the piston frame to move downward along the inner side of the piston cylinder, so that the piston frame extrudes the gas in the piston cylinder into the inner side of the gas storage shell through the gas delivery pipe. Meanwhile, under the driving of the movable mechanism, the ventilation assembly cooperates with the pushing plate to seal the upper mold, so that the gas is stored in the inner side of the gas storage shell.

[0022] In step S3, after the foaming is completed, the telescopic end of the hydraulic cylinder is controlled to retract the fixed end, so that the upper mold moves upward. The ventilation assembly gradually separates from the pushing plate, so that the gas in the gas storage shell enters between the upper mold and the foaming material through the pushing plate. The upper mold continues to move upward, and the pushing plate is moved out of the upper mold through the abutting assembly, so that the pushing plate can push the foaming material in the upper mold. During the pushing process, the adhesion between the upper mold and the foaming material is reduced due to the influence of the vibrating assembly, so that the pushing plate can push the foaming material out of the inner side of the upper mold.

[0023] In step S4, during the upward movement of the upper mold, the upper mold drives the movable mechanism to move, so that the movable mechanism drives the spraying mechanism to move. The spraying mechanism drives the intercepting mechanism to move between the movable mechanisms, so as to form clamping connection with the movable mechanisms, thereby preventing the upper mold from being uncontrollably pressed downward.

[0024] The application improves the physical foaming device for the embryo and the demolding method thereof, and has the following improvements and advantages compared with the prior art.

[0025] Firstly, the application controls the upward movement of the upper mold, drives the push plate to move upward by the gas storage shell and the second spring, makes the push plate drive the push rod to contact the abutting frame, moves the push plate out of the upper mold, and enables the push plate to push the foaming material out of the inner side of the upper mold, thereby facilitating the demolding work of the foaming material;

[0026] Secondly, the application controls the extension of the telescopic end of the hydraulic cylinder, drives the upper mold to move downward, controls the demolding agent conveying device connected to the interface to convey the demolding agent to the inner side of the spray shell during the movement, sprays the demolding agent to the inner wall of the upper mold by the spray shell, and drives the first movable arm and the second movable arm to rotate when the upper mold moves downward, drives the spray shell to rotate around the connecting rod by the touch rod, adjusts the angle while spraying the demolding agent to the inner wall of the upper mold;

[0027] Thirdly, the application drives the piston frame to move downward along the inner side of the piston cylinder during the downward movement of the upper mold, enables the piston frame to extrude the gas in the piston cylinder into the inner side of the gas storage shell through the gas conveying pipe, drives the stress rod to drive the plug to cooperate with the push plate to seal the upper mold by the plate frame and the round rod under the drive of the first movable arm, stores the gas in the inner side of the gas storage shell, controls the telescopic end of the hydraulic cylinder to retract the fixed end when the foaming work is completed, drives the upper mold to move upward, drives the plug to gradually separate from the push plate by the plate frame and the round rod, enables the gas in the gas storage shell to enter between the upper mold and the foaming material through the push plate, forms the gas flow between the upper mold and the foaming material, reduces the adhesion between the foaming material and the upper mold by the gas flow, and facilitates the demolding work of the foaming material;

[0028] Fourthly, the application drives the first movable arm and the second movable arm to expand at a relatively slow speed relative to the telescopic end of the hydraulic cylinder during the initial upward movement of the upper mold, and drives the stress rod and the plate frame to rotate at the hinge between them, so that the plug moves upward at a speed slower than the upper mold and the push plate when the telescopic end of the hydraulic cylinder drives the upper mold and the push plate to move upward, at this time, the plug slightly moves out of the inner side of the push plate, enables the plug to push the foaming material adhered to the position of the push plate, and facilitates the separation between the push plate and the foaming material;

[0029] Fifth, the push plate drives the sawtooth frame to move during the pushing process, the third spring supports the clamping plate by using the elastic force of itself, the sawtooth frame can be continuously clamped with the clamping plate, vibration is generated through clamping, the adhesion between the upper mold and the foaming material is reduced due to the vibration, so that the push plate pushes the foaming material, and damage caused by forcibly pushing the foaming material by the push plate is avoided;

[0030] Sixth, the first movable arm is driven by the upper mold to move during the upward movement of the upper mold, the first movable arm drives the abutting block to move through the fixed shell, the telescopic block, the supporting rod and the interface, the abutting block abuts against the guide shell, the guide shell drives the clamping block to move between the first movable arm and the second movable arm under the support of the elastic force of the first spring, the first movable arm and the second movable arm are clamped, and the upper mold is prevented from being out of control and pressed downward. BRIEF DESCRIPTION OF DRAWINGS

[0031] The application will be further explained in connection with the drawings and embodiments:

[0032] Figure 1 It is a whole three-dimensional structure schematic diagram of the application;

[0033] Figure 2 It is a top frame three-dimensional structure schematic diagram of the application;

[0034] Figure 3 It is an upper mold three-dimensional structure schematic diagram of the application;

[0035] Figure 4 It is a spray shell three-dimensional structure schematic diagram of the application;

[0036] Figure 5 It is a fixed shell cross-sectional structure schematic diagram of the application;

[0037] Figure 6 It is a guide shell cross-sectional structure schematic diagram of the application;

[0038] Figure 7 It is a first movable arm three-dimensional structure schematic diagram of the application;

[0039] Figure 8 It is a gas conveying pipe three-dimensional structure schematic diagram of the application;

[0040] Figure 9 It is an upper mold moving to the highest working state diagram of the application;

[0041] Figure 10 It is an upper mold just moving upward working state diagram of the application;

[0042] Figure 11 It is a gas flow working state diagram of the gas conveying pipe of the application;

[0043] Figure 12 It is the schematic diagram of the three-dimensional structure of the push plate of the application;

[0044] Figure 13 It is the schematic diagram of the sectional structure of the inner shell of the application;

[0045] Figure 14 It is the schematic diagram of the sectional structure of the force-bearing rod of the application.

[0046] Explanation of reference signs:

[0047] 1, machine shell; 2, top frame; 3, hydraulic cylinder; 4, upper mold; 5, first feeding pipe; 6, second feeding pipe; 7, lower mold; 8, first movable arm; 9, second movable arm; 10, fixed shell; 11, telescopic block; 12, support rod; 13, interface; 14, conveying pipe; 15, spraying shell; 16, fixed block; 17, torsional spring; 18, ring block; 19, connecting rod; 20, touch rod; 21, abutting block; 22, side plate; 23, first spring; 24, edge block; 25, guide shell; 26, clamping block; 27, gas storage shell; 28, second spring; 29, push plate; 30, pushing rod; 31, abutting frame; 32, inner shell; 33, third spring; 34, clamping plate; 35, sawtooth frame; 36, piston frame; 37, piston cylinder; 38, air inlet one-way valve; 39, gas conveying pipe; 40, force-bearing rod; 41, plate frame; 42, round rod; 43, blocking block. DETAILED DESCRIPTION

[0048] The application will be described in detail below, and the technical solutions in the embodiments of the application will be clearly and completely described. Obviously, the described embodiments are only some of the embodiments of the application, but not all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the application.

[0049] The application provides a physical foaming device for embryos by improvement, and the technical solutions of the application are as follows:

[0050] As shown in Figures 1-14 A physical foaming device for embryos, comprising a machine shell 1, a top frame 2 fixedly installed on the machine shell 1, a hydraulic cylinder 3 fixedly arranged on the top frame 2, an upper mold 4 fixedly installed on the telescopic end of the hydraulic cylinder 3, a lower mold 7 fixedly installed on the machine shell 1, a movable mechanism jointly arranged between the upper mold 4 and the lower mold 7, two groups of spraying mechanisms arranged on the movable mechanism, an intercepting mechanism jointly arranged between the top frame 2 and the two groups of spraying mechanisms, a discharging mechanism arranged on the upper mold 4, and a first feeding pipe 5 and a second feeding pipe 6 fixedly installed on the upper mold 4.

[0051] Specifically, the first feeding pipe 5 is connected with an external embryo material conveying device, the second feeding pipe 6 is connected with an external supercritical gas conveying device, the staff controls the extension of the hydraulic cylinder 3 to make the extension of the hydraulic cylinder 3 drive the upper mold 4 to move downward to be attached to the lower mold 7, the external embryo material conveying device is controlled to convey embryo material between the upper mold 4 and the lower mold 7, the external supercritical gas conveying device is controlled to convey supercritical gas between the upper mold 4 and the lower mold 7, and the supercritical gas performs physical foaming on the embryo material.

[0052] In the embodiment, the movable mechanism comprises first movable arms 8 hingedly installed on the upper mold 4, and a second movable arm 9 hingedly installed on the lower mold 7 and hingedly connected with the first movable arms 8, each of the first movable arms 8 is fixedly installed with a fixed shell 10, the inner side of each fixed shell 10 is slidingly installed with an extension block 11, the extension block 11 is fixedly installed with a support rod 12, the spraying mechanism comprises an interface 13 fixedly installed between the two support rods 12, the interface 13 is connected with a conveying pipe 14, the end of the conveying pipe 14 is connected with a spraying shell 15, the spraying mechanism comprises a support assembly arranged between the top frame 2 and the spraying shell 15, the support assembly comprises two fixed blocks 16 fixedly installed on the top frame 2, each fixed block 16 is connected with a torsion spring 17, the end of the torsion spring 17 is connected with a ring block 18, the ring block 18 is rotatably installed with a connecting rod 19 fixedly connected with the spraying shell 15, and the spraying shell 15 is fixedly installed with a triggering rod 20.

[0053] Specifically, the interface 13 is connected with an external demolding agent conveying device, the conveying pipe 14 is a hose, the staff controls the extension of the hydraulic cylinder 3 to make the extension of the hydraulic cylinder 3 drive the upper mold 4 to move downward, in the moving process, the demolding agent conveying device connected with the interface 13 is controlled to convey demolding agent to the inner side of the spraying shell 15, the demolding agent is sprayed out of the spraying shell 15 to perform demolding agent spraying on the inner wall of the upper mold 4, and at the same time, the upper mold 4 drives the first movable arm 8 and the second movable arm 9 to rotate, the first movable arm 8 drives the spraying shell 15 to rotate around the connecting rod 19 as the center through the triggering rod 20, so that the spraying mechanism adjusts the angle while spraying demolding agent on the inner wall of the upper mold 4.

[0054] When the upper mold 4 moves upward, the torsion spring 17 can drive the spraying shell 15 to rotate back through the ring block 18 and the connecting rod 19 by using the elastic force of the torsion spring 17.

[0055] In the embodiment, the intercepting mechanism comprises two abutting blocks 21 fixedly installed on the two interfaces 13 respectively, two groups of side plates 22 are fixedly installed on the top frame 2, each side plate 22 is connected with a first spring 23, the end of the first spring 23 is connected with a side block 24, the side block 24 is fixedly installed with a guide shell 25 fixed with the top frame 2, the guide shell 25 abuts against the abutting block 21, and the guide shell 25 is fixedly installed with a clamping block 26.

[0056] Specifically, in the upward movement of the upper die 4, the upper die 4 drives the first movable arm 8 to move, so that the first movable arm 8 drives the abutting block 21 to move through the fixed shell 10, the telescopic block 11, the supporting rod 12 and the interface 13, the abutting block 21 abuts against the guide shell 25, the guide shell 25 drives the clamping block 26 to move between the first movable arm 8 and the second movable arm 9 under the support of the elasticity of the first spring 23 through the side block 24, and the clamping block 26 is clamped between the first movable arm 8 and the second movable arm 9, so that the first movable arm 8 and the second movable arm 9 are prevented from being pressed downward uncontrollably by the upper die 4;

[0057] When the upper die 4 moves downward, the abutting block 21 no longer abuts against the guide shell 25, so that the first spring 23 can drive the guide shell 25 to reset and move through the side block 24 by using the elasticity of the first spring 23, and the clamping block 26 moves away from between the first movable arm 8 and the second movable arm 9.

[0058] In the embodiment, the blanking mechanism comprises two gas storage shells 27 fixedly installed on the upper die 4, the inner side of the top wall of each gas storage shell 27 is connected with two second springs 28, the ends of the two second springs 28 are commonly connected with a push plate 29 in sliding connection with the upper die 4, an abutting assembly is arranged between the top frame 2 and the push plate 29, a vibrating assembly is arranged between the gas storage shell 27 and the push plate 29, a plurality of piston frames 36 are fixedly installed on the upper die 4, a piston cylinder 37 in sliding connection with the piston frame 36 is fixedly installed on the lower die 7, a gas inlet one-way valve 38 is arranged on the piston cylinder 37, a gas conveying pipe 39 fixed with the gas storage shell 27 is fixedly installed on the piston cylinder 37, an air passage assembly is arranged between the movable mechanism and the gas storage shell 27, the abutting assembly comprises an abutting frame 31 fixedly installed on the top frame 2, a pushing rod 30 is fixedly installed on the push plate 29, the vibrating assembly comprises two inner shells 32 fixedly installed on the inner wall of the gas storage shell 27 in symmetry, the inner wall of each inner shell 32 is connected with a plurality of third springs 33, the ends of the plurality of third springs 33 are commonly connected with a clamping plate 34 in sliding connection with the inner shell 32, two sawtooth frames 35 in clamping connection with the clamping plate 34 are fixedly installed on the push plate 29 in symmetry, and the air passage assembly comprises a plurality of stress rods 40 respectively hingedly installed on the plurality of first movable arms 8, the ends of every two stress rods 40 are commonly hingedly installed with a plate frame 41, two round rods 42 are fixedly installed on the plate frame 41, and the end of each round rod 42 is fixedly installed with a plug block 43 in sliding connection with the push plate 29.

[0059] Specifically, the check valve is arranged in the gas conveying pipe 39 to prevent gas backflow. During the downward movement of the upper mold 4, the upper mold 4 drives the piston frame 36 to move downward along the inner side of the piston cylinder 37, so that the piston frame 36 extrudes the gas in the piston cylinder 37 into the inner side of the gas storage shell 27 through the gas conveying pipe 39. Meanwhile, the force rod 40 drives the plug 43 to cooperate with the push plate 29 to seal the upper mold 4 under the drive of the first movable arm 8, so that the gas is stored in the inner side of the gas storage shell 27. When the foaming work is completed, the fixed end of the hydraulic cylinder 3 is retracted, the upper mold 4 moves upward, the force rod 40 drives the plug 43 to gradually separate from the push plate 29 through the plate frame 41 and the round rod 42, the gas in the gas storage shell 27 enters between the upper mold 4 and the foaming material through the push plate 29, and the gas flow is formed between the upper mold 4 and the foaming material, so as to reduce the adhesion between the foaming material and the upper mold 4, which is beneficial to the demolding work of the foaming material.

[0060] During the initial upward movement of the upper mold 4, the first movable arm 8 and the second movable arm 9 expand at a relatively slow speed relative to the extension and retraction end of the hydraulic cylinder 3, and the hinge between the first movable arm 8, the force rod 40 and the plate frame 41 rotates, so that the extension and retraction end of the hydraulic cylinder 3 drives the upper mold 4 and the push plate 29 to move upward, and the upward movement speed of the plug 43 cannot catch up with the speed of the upper mold 4 and the push plate 29. At this time, the plug 43 slightly moves out of the inner side of the push plate 29, so that the plug 43 can push the foaming material adhered to the position of the push plate 29, which facilitates the separation between the push plate 29 and the foaming material. Subsequently, the first movable arm 8 drives the plug 43 to move upward through the force rod 40, the plate frame 41 and the round rod 42.

[0061] During the continuous upward movement of the upper mold 4, the expansion speed of the first movable arm 8 and the second movable arm 9 gradually increases, so that the upward movement of the plug 43 gradually catches up with the push plate 29.

[0062] By controlling the continuous upward movement of the upper mold 4, the upper mold 4 drives the push plate 29 to move upward through the gas storage shell 27 and the second spring 28, the push plate 29 drives the push rod 30 to contact the abutment frame 31, the push plate 29 moves out of the upper mold 4, and the push plate 29 can push the foaming material out of the inner side of the upper mold 4, thereby facilitating the demolding work of the foaming material.

[0063] When the upper mold 4 moves downward, the abutting force between the push rod 30 and the abutment frame 31 decreases, so that the second spring 28 can drive the push plate 29 to move into the inner side of the upper mold 4 to reset by using the elastic force of the second spring 28.

[0064] Through the pushing process of the pushing plate 29, the pushing plate 29 drives the sawtooth frame 35 to move, the third spring 33 can support the clamping plate 34 by using the elastic force of the third spring 33, so that the sawtooth frame 35 can be continuously clamped with the clamping plate 34, and the clamping can generate vibration, so that the adhesion between the upper mold 4 and the foaming material is reduced under the influence of the vibration, thereby facilitating the pushing plate 29 to push the foaming material, and avoiding that the foaming material is damaged due to the forced pushing of the pushing plate 29.

[0065] A physical foaming demolding method for an embryo body, comprising the following steps:

[0066] Step S1, by controlling the extension of the telescopic end of the hydraulic cylinder 3, the telescopic end of the hydraulic cylinder 3 drives the upper mold 4 to move downward, in the moving process, the demolding agent is delivered to the spraying mechanism by controlling the demolding agent delivery device connected with the spraying mechanism, and under the driving of the movable mechanism, the spraying mechanism adjusts the angle while spraying the demolding agent to the inner wall of the upper mold 4;

[0067] Step S2, in the moving process of the upper mold 4, the upper mold 4 drives the piston frame 36 to move downward along the inner side of the piston cylinder 37, so that the piston frame 36 extrudes the gas in the piston cylinder 37 into the inner side of the gas storage shell 27 through the gas delivery pipe 39, and under the driving of the movable mechanism, the air passage assembly cooperates with the pushing plate 29 to seal the upper mold 4, so that the gas is stored in the inner side of the gas storage shell 27;

[0068] Step S3, when the foaming work is completed, the telescopic end of the hydraulic cylinder 3 is controlled to retract the fixed end, so that the upper mold 4 moves upward, the air passage assembly gradually separates from the pushing plate 29, the gas in the gas storage shell 27 enters between the upper mold 4 and the foaming material through the pushing plate 29, the upper mold 4 continues to move upward, the pushing plate 29 is moved out of the upper mold 4 through the abutting assembly, so that the pushing plate 29 can push the foaming material in the upper mold 4, in the pushing process, the adhesion between the upper mold 4 and the foaming material is reduced under the influence of the vibration assembly, so that the pushing plate 29 can push the foaming material out of the inner side of the upper mold 4;

[0069] Step S4, in the moving process of the upper mold 4, the upper mold 4 drives the movable mechanism to move, so that the movable mechanism drives the spraying mechanism to move, the spraying mechanism drives the intercepting mechanism to move between the movable mechanisms, and the movable mechanisms are clamped to prevent the upper mold 4 from being out of control and being pressed downward.

[0070] Working principle: the worker controls the extension of the telescopic end of the hydraulic cylinder 3, during the movement, the demolding agent conveying device connected to the interface 13 conveys the demolding agent to the inside of the spray shell 15, which sprays the demolding agent to the inner wall of the upper mold 4, at the same time, the upper mold 4 moves downward, driving the first movable arm 8 and the second movable arm 9 to rotate, the first movable arm 8 drives the spray shell 15 to rotate around the connecting rod 19 as the center through the touch rod 20, the spray mechanism adjusts the angle while spraying the demolding agent to the inner wall of the upper mold 4, so that the telescopic end of the hydraulic cylinder 3 can drive the upper mold 4 to move downward to be in close contact with the lower mold 7, the upper mold 4 drives the piston frame 36 to move downward along the inside of the piston cylinder 37, the piston frame 36 extrudes the gas in the piston cylinder 37 into the inside of the gas storage shell 27 through the gas conveying pipe 39, at the same time, under the drive of the first movable arm 8, the stressed rod 40 drives the plug block 43 to cooperate with the push plate 29 to seal the upper mold 4 through the plate frame 41 and the round rod 42, so that the gas is stored in the inside of the gas storage shell 27, the embryo material conveying device connected outside is controlled to convey the embryo material between the upper mold 4 and the lower mold 7, the supercritical gas conveying device connected outside is controlled to convey the supercritical gas between the upper mold 4 and the lower mold 7, so that the supercritical gas physically foams the embryo material;

[0071] After the foaming is finished, the retracting end of the hydraulic cylinder 3 is controlled to retract the fixed end, the upper mold 4 is moved upward, the round sleeve drives the plug 43 to gradually separate from the push plate 29 through the fourth spring, the movable rod, the frame 41 and the round rod 42, the gas in the gas storage shell 27 enters between the upper mold 4 and the foaming material through the push plate 29, the gas flow is formed between the upper mold 4 and the foaming material, the adhesion between the foaming material and the upper mold 4 is reduced by the gas flow, the upper mold 4 is continuously moved upward, the push plate 29 is moved upward by the gas storage shell 27 and the second spring 28, the push plate 29 drives the push rod 30 to contact the abutting frame 31, the push plate 29 moves out of the upper mold 4, the push plate 29 can push the foaming material out of the inner side of the upper mold 4, the first movable arm 8 and the second movable arm 9 are relatively slow in the unfolding speed relative to the retracting end of the hydraulic cylinder 3 during the initial upward movement of the upper mold 4, and the hinge between the first movable arm 8, the force rod 40 and the frame 41 rotates, so that the retracting end of the hydraulic cylinder 3 drives the upper mold 4 and the push plate 29 to move upward, the plug 43 cannot move upward at the speed of the upper mold 4 and the push plate 29, at this time, the plug 43 slightly moves out of the inner side of the push plate 29, the plug 43 can push the foaming material adhered to the position of the push plate 29, so that the push plate 29 and the foaming material are separated, the push plate 29 drives the sawtooth frame 35 to move during the pushing process, the third spring 33 can support the clamping plate 34 by using the elastic force, the sawtooth frame 35 can continuously clamp the clamping plate 34, the vibration is generated by clamping, the adhesion between the upper mold 4 and the foaming material is reduced by the vibration, and the push plate 29 pushes the foaming material out of the inner side of the upper mold 4.

[0072] The technical means disclosed in the technical scheme of the present application is not limited to the technical means disclosed in the above technical means, and includes the technical scheme composed of the equivalent replacement of the above technical features. The unfinished matters of the present application belong to the common knowledge of those skilled in the art.

Claims

1. A physical foaming device for embryos, comprising a housing (1), a top frame (2) fixedly mounted on the housing (1), a hydraulic cylinder (3) provided on the top frame (2), an upper mold (4) fixedly mounted on the telescopic end of the hydraulic cylinder (3), and a lower mold (7) fixedly mounted on the housing (1), characterized in that: The movable mechanism is provided between the upper die (4) and the lower die (7), two groups of spraying mechanisms are arranged on the movable mechanism, an intercepting mechanism is arranged between the top frame (2) and the two groups of spraying mechanisms, and a discharging mechanism is arranged on the upper die (4). The movable mechanism comprises a first movable arm (8) hingedly connected to the upper die (4), and a second movable arm (9) hingedly connected to the first movable arm (8) and arranged on the lower die (7). The discharging mechanism comprises two gas storage shells (27) fixedly connected to the upper die (4), two second springs (28) connected to the inner side of the top wall of each gas storage shell (27), a push plate (29) slidably connected to the upper die (4) and connected to the end portions of the two second springs (28), and an abutting assembly arranged between the top frame (2) and the push plate (29). A vibrating assembly is arranged between the gas storage shell (27) and the push plate (29), a plurality of piston frames (36) are fixedly arranged on the upper die (4), a piston cylinder (37) is fixedly arranged on the lower die (7) and slidably connected to the piston frame (36), an air inlet one-way valve (38) is arranged on the piston cylinder (37), a gas conveying pipe (39) is fixedly arranged on the piston cylinder (37) and fixed to the gas storage shell (27), and an air passage assembly is arranged between the movable mechanism and the gas storage shell (27). The air passage assembly comprises a plurality of force rods (40) hingedly arranged on the plurality of first movable arms (8), a plate frame (41) hingedly arranged at the end portions of each two force rods (40), two circular rods (42) fixedly arranged on the plate frame (41), and a blocking block (43) slidably connected to the push plate (29) and fixedly arranged at the end portion of each circular rod (42).

2. A physical foaming device for a log according to claim 1, characterized in that: A first feeding pipe (5) and a second feeding pipe (6) are fixedly arranged on the upper die (4).

3. A physical foaming device for a log according to claim 2, characterized in that: A fixed shell (10) is fixedly arranged on each first movable arm (8), a telescopic block (11) is slidably arranged on the inner side of each fixed shell (10), and a supporting rod (12) is fixedly arranged on the telescopic block (11).

4. A physical foaming device for a log according to claim 3, characterized in that: The spraying mechanism comprises an interface (13) fixedly arranged between the two supporting rods (12), a conveying pipe (14) connected to the interface (13), and a spraying shell (15) connected to the end portion of the conveying pipe (14).

5. A physical foaming device for a log according to claim 4, characterized in that: The spraying mechanism comprises a supporting assembly arranged between the top frame (2) and the spraying shell (15), the supporting assembly comprises two fixed blocks (16) fixedly arranged on the top frame (2), a torsional spring (17) connected to each fixed block (16), a ring block (18) connected to the end portion of the torsional spring (17), a connecting rod (19) rotatably arranged on the ring block (18) and fixed to the spraying shell (15), and a triggering rod (20) fixedly arranged on the spraying shell (15).

6. A physical foaming device for a log according to claim 5, characterized in that: The intercepting mechanism comprises two abutting blocks (21) fixedly installed on the two interfaces (13) respectively, two groups of side plates (22) are fixedly installed on the top frame (2), each side plate (22) is connected with a first spring (23), the end of the first spring (23) is connected with a side block (24), the side block (24) is fixedly installed with a guide shell (25) fixed with the top frame (2), the guide shell (25) abuts against the abutting block (21), and the guide shell (25) is fixedly installed with a clamping block (26).

7. A physical foaming device for a log according to claim 6, characterized in that: The abutting assembly comprises an abutting frame (31) fixedly installed on the top frame (2), and the push plate (29) is fixedly installed with a push rod (30).

8. A physical foaming device for a log according to claim 7, characterized in that: The vibrating assembly comprises two inner shells (32) fixedly installed on the inner wall of the gas storage shell (27) symmetrically, the inner wall of each inner shell (32) is connected with a plurality of third springs (33), the ends of the plurality of third springs (33) are connected with a clamping plate (34) in sliding connection with the inner shell (32), and the push plate (29) is fixedly installed with two sawtooth frames (35) symmetrically and in clamping connection with the clamping plate (34).

9. A physical foaming demolding method for a green body, applied to the physical foaming device for a green body according to any one of claims 1-8, characterized in that: The method comprises the following steps: Step S1, the stretching end of the hydraulic cylinder (3) is controlled to stretch out, so that the stretching end of the hydraulic cylinder (3) drives the upper mold (4) to move downwards, in the moving process, the release agent conveying device connected with the spraying mechanism is controlled to convey the release agent into the spraying mechanism, and under the driving of the moving mechanism, the spraying mechanism sprays the release agent on the inner wall of the upper mold (4) and adjusts the angle at the same time; Step S2, in the moving process of the upper mold (4), the upper mold (4) drives the piston frame (36) to move downwards along the inner side of the piston cylinder (37), so that the piston frame (36) extrudes the gas in the piston cylinder (37) into the inner side of the gas storage shell (27) through the gas conveying pipe (39), and under the driving of the moving mechanism, the ventilation assembly cooperates with the push plate (29) to seal the upper mold (4), so that the gas is stored in the inner side of the gas storage shell (27); Step S3, when the foaming is completed, the stretching end of the hydraulic cylinder (3) is controlled to retract the fixed end, so that the upper mold (4) moves upwards, the ventilation assembly gradually separates from the push plate (29), the gas in the gas storage shell (27) enters between the upper mold (4) and the foaming material through the push plate (29), the upper mold (4) continues to move upwards, the push plate (29) moves out of the upper mold (4) through the abutting assembly, so that the push plate (29) can push the foaming material in the upper mold (4), and in the pushing process, the adhesion between the upper mold (4) and the foaming material is reduced under the influence of the vibrating assembly, so that the push plate (29) can push the foaming material out of the inner side of the upper mold (4); Step S4, in the moving process of the upper mold (4), the upper mold (4) drives the moving mechanism to move, the moving mechanism drives the spraying mechanism to move, the spraying mechanism drives the intercepting mechanism to move between the moving mechanisms, the moving mechanism is clamped, the upper mold (4) is prevented from being pressed uncontrollably.

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