Yellowing-resistant sponge material production apparatus and method of production thereof

Abstract

The application relates to a yellowing-resistant sponge material production equipment and a production method thereof, and relates to the technical field of sponge production. The equipment comprises a main material stirring system, a vibration conveying system, a conveying opening and closing device, a rotary barrel, a barrel body rotating system and a stirring inner bag. The stirring inner bag is installed in the rotary barrel, the rotary barrel is installed at the output end of the barrel body rotating system, the height of the main material stirring system is higher than that of the rotary barrel, the main material stirring system is connected with the rotary barrel through the vibration conveying system, the tail end of the vibration conveying system is provided with the conveying opening and closing device, the rotary barrel is provided with a tail material conveying pipe and an air pressure system, the air pressure system is connected with the outer side of the stirring inner bag, the tail material conveying pipe is connected with the inner side of the stirring inner bag through a hose, and the opening part of the stirring inner bag is provided with an inner bag opening and closing device, so that material is saved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sponge production, in particular to a yellowing-resistant sponge material production equipment and production method thereof. BACKGROUND

[0002] Sponge production uses polyurethane as the main raw material to produce porous materials through foaming process, and is widely used in industrial, home and other fields. Polyether, polyester and other materials form products with different densities through foaming process, and their performance can be adjusted by additives and process.

[0003] The main raw material of sponge is polyurethane soft foaming rubber. During production, foaming resin, additives and adhesive resin are mixed and then injected into a mold for foaming, and a foaming agent is used to form a porous structure. Industrial sponge includes foaming cotton, shaped cotton and rubber cotton. The products have the functions of heat preservation, heat insulation and shock absorption, and are applied to furniture filling, industrial padding and packaging materials, and are suitable for furniture, electronic filtering and other fields.

[0004] During the foaming process of sponge, stirring needs to be carried out gradually, and a foaming agent and a curing agent are added at the end. During the whole stirring process, a large amount of material will adhere to the stirring equipment, which will lose the opportunity to be shaped into finished products and waste the material. SUMMARY

[0005] In order to overcome the technical defects existing in the prior art, the present application provides a yellowing-resistant sponge material production equipment and production method thereof, which saves material.

[0006] The technical solution adopted by the present application is:

[0007] The application discloses a production equipment for a yellowing-resistant sponge material, which comprises a main material stirring system, a vibration conveying system, a conveying opening and closing device, a rotary barrel, a barrel body rotating system and a stirring inner bag, the stirring inner bag is installed in the rotary barrel, the rotary barrel is installed at the output end of the barrel body rotating system, the barrel body rotating system drives the rotary barrel to rotate, the height of the main material stirring system is higher than that of the rotary barrel, the main material stirring system is connected with the rotary barrel through the vibration conveying system, the tail end of the vibration conveying system is provided with the conveying opening and closing device, the rotary barrel is provided with a tail material conveying pipe and a gas pressure system, the gas pressure system is connected with the outer side of the stirring inner bag, the tail material conveying pipe is connected with the inner side of the stirring inner bag through a hose, the opening of the stirring inner bag is provided with an inner bag opening and closing device, the lower side of the rotary barrel is provided with a forming groove, the bottom of the forming groove is provided with a weight sensor, the gas pressure system comprises a rapid air inlet device, a main air inlet pipe and a main air inlet opening and closing device, the main air inlet pipe is installed on the rotary barrel, the main air inlet pipe is connected with the inner side of the rotary barrel, the main air inlet pipe is connected with the outer side of the stirring inner bag, the main air inlet opening and closing device is installed at the tail end of the main air inlet pipe, the rapid air inlet device comprises an air inlet support plate and an auxiliary air inlet pipe, the air inlet support plate is installed in the main air inlet pipe, the auxiliary air inlet pipe is installed on the air inlet support plate, the auxiliary air inlet pipe penetrates through the main air inlet pipe, the auxiliary air inlet pipe is connected with a gas pump outside the main air inlet pipe in the main air inlet pipe, the auxiliary air inlet pipe is in the main air inlet pipe and the auxiliary air inlet pipe points to the stirring inner bag, before the weight sensor weighs the material flowing into the forming groove to reach 80% of the total material amount, the main air inlet opening and closing device is opened, the auxiliary air inlet pipe sprays air, after the weight sensor weighs the material flowing into the forming groove to reach 80% of the total material amount, the main air inlet opening and closing device closes the main air inlet pipe.

[0008] Preferably, the main material stirring system comprises a main material stirring tank, a main material stirring motor and a main material stirring paddle, the main material stirring paddle is rotatably installed in the main material stirring tank, the main material stirring motor is installed outside the main material stirring tank, and the main material stirring motor is in transmission connection with the main material stirring paddle.

[0009] Preferably, the vibration conveying system comprises a flexible frame, an inclined pipe and a vibration motor, the vibration motor is installed on the flexible frame, the inclined pipe is installed on the flexible frame, and the inclined pipe is connected with the main material stirring system through a hose.

[0010] Preferably, the conveying opening and closing device comprises a conveying opening and closing cylinder and a conveying opening and closing plate, the conveying opening and closing plate is rotatably installed at the tail end of the inclined pipe, the conveying opening and closing cylinder is installed on the inclined pipe, and the conveying opening and closing cylinder is in transmission connection with the conveying opening and closing plate.

[0011] Preferably, the rotary barrel is provided with a rotary joint near the barrel body rotating system, and the gas pressure system is connected with the rotary joint.

[0012] Preferably, the barrel body rotating system comprises a barrel body rotating motor, a barrel body rotating shaft and a barrel body rotating support frame, the barrel body rotating shaft is rotatably installed on the barrel body rotating support frame, the barrel body rotating motor is installed in the barrel body rotating support frame, the barrel body rotating motor is in transmission connection with the barrel body rotating shaft, and the rotating barrel is installed on the barrel body rotating shaft.

[0013] Preferably, the stirring inner bag is made of PE.

[0014] The method for producing the yellowing-resistant sponge material and the yellowing-resistant sponge material production equipment comprise the following steps:

[0015] S1: pouring the main material including isocyanate into the main material stirring system for stirring;

[0016] S2: opening the vibration conveying system to facilitate the flow of the material, opening the conveying opening and closing device, and synchronously opening the inner bag opening and closing device to flow the material into the stirring inner bag;

[0017] S3: closing the conveying opening and closing device, synchronously closing the inner bag opening and closing device, pouring the foaming agent and the curing agent into the tail material conveying pipe, and rotating the rotating barrel by the barrel body rotating system;

[0018] S4: after the stirring is completed, opening the inner bag opening and closing device when the inner bag opening and closing device faces downward, and ventilating by the air pressure system.

[0019] The method for producing the yellowing-resistant sponge material and the yellowing-resistant sponge material production equipment comprise the following steps:

[0020] The stirring inner bag is installed in the rotating barrel, the rotating barrel is installed at the output end of the barrel body rotating system, the barrel body rotating system drives the rotating barrel to rotate, the material is rapidly mixed, the height of the main material stirring system is higher than that of the rotating barrel, the material falls under the action of gravity, the main material stirring system is connected with the rotating barrel through the vibration conveying system, the downward flow of the material is promoted, the material in the rotating barrel is rapidly mixed, the rapid discharge of the material in the main material stirring system is realized, the tail material conveying pipe and the air pressure system are installed on the rotating barrel, the tail material conveying pipe is used for conveying the curing agent and the foaming agent which are finally poured in, the air pressure system is connected with the outside of the stirring inner bag, the material in the stirring inner bag is rapidly extruded after the air pressure system is ventilated, the tail material conveying pipe is connected with the inside of the stirring inner bag through a hose, the interference in the shrinking process of the stirring inner bag is avoided, the inner bag opening and closing device is arranged at the mouth of the stirring inner bag, the discharge of the material in the stirring inner bag is controlled, the material mixed with the curing agent and the foaming agent is discharged, the stirring inner bag is completely shrunk under the action of the air pressure, all the materials in the stirring inner bag are discharged, and the material is saved.

[0021] After the inner bag opening and closing device is opened, the material is poured into the forming groove on the lower side of the rotating barrel, in order to measure the mass of the material in the forming groove, a weight sensor is arranged at the bottom of the forming groove.

[0022] Specifically, the air pressure system comprises a rapid air inlet device, a main air inlet pipe and a main air inlet opening and closing device, the main air inlet pipe is installed on the rotary barrel, the main air inlet pipe is communicated to the inside of the rotary barrel, the main air inlet pipe is communicated to the outside of the stirring inner bag, the main air inlet opening and closing device is installed at the end of the main air inlet pipe, the rapid air inlet device comprises an air inlet support plate and an auxiliary air inlet pipe, the air inlet support plate is installed in the main air inlet pipe, the auxiliary air inlet pipe is installed on the air inlet support plate, the auxiliary air inlet pipe penetrates through the main air inlet pipe, the auxiliary air inlet pipe is communicated to the air pump outside the main air inlet pipe, the auxiliary air inlet pipe is in the main air inlet pipe and the auxiliary air inlet pipe points to the stirring inner bag, before the weight sensor weighs the material flowing into the forming groove to reach 80% of the total material amount, the main air inlet opening and closing device is opened, the auxiliary air inlet pipe sprays air, under the driving of the auxiliary air inlet pipe, the air in the main air inlet pipe also quickly flows into the rotary barrel, so that the stirring inner bag quickly shrinks and the material is quickly discharged, and after the weight sensor weighs the material flowing into the forming groove to reach 80% of the total material amount, the main air inlet opening and closing device closes the main air inlet pipe, at this time, the air pump pressurizes and supplies air into the rotary barrel through the auxiliary air inlet pipe, so that the stirring inner bag shrinks under pressure and the stirring inner bag is completely discharged.

[0023] In order to make the stirring inner bag can be recycled, the stirring inner bag can use polyethylene material, which is convenient for repeated recycling, after the stirring inner bag realizes five times of stirring, four chloroethylene is introduced into the stirring inner bag for dissolution cleaning, in order to clean the surface of the forming groove, in addition, the forming groove can also be cleaned by using four chloroethylene. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the application.

[0025] Figure 2 It is Figure 1 It is an enlarged schematic diagram of position A in the middle.

[0026] Figure 3 It is Figure 1 It is an enlarged schematic diagram of position B in the middle.

[0027] Figure 4 It is a structural schematic diagram of the rotary barrel.

[0028] Figure 5 It is Figure 4 It is an enlarged schematic diagram of position C in the middle.

[0029] Figure 6 It is a structural schematic diagram of the rapid air inlet device.

[0030] Figure 7 It is a structural schematic diagram of the air pressure system.

[0031] BRIEF DESCRIPTION OF DRAWINGS

[0032] 1, main material stirring system; 11, main material stirring tank; 12, main material stirring motor; 13, main material stirring paddle;

[0033] 2, vibration conveying system; 21, flexible frame; 22, inclined pipe; 23, vibration motor;

[0034] 3, conveying opening and closing device;

[0035] 4, rotary barrel; 41, tail material conveying pipe; 42, air pressure system; 421, rapid air inlet device; 4211, air inlet support plate; 4212, auxiliary air inlet pipe; 422, main air inlet pipe; 423, main air inlet opening and closing device;

[0036] 5, barrel body rotation system; 51, barrel body rotation motor; 52, barrel body rotation shaft; 53, barrel body rotation support frame;

[0037] 6, stirring inner bag; 61, inner bag opening and closing device. DETAILED DESCRIPTION

[0038] The application will be further described below in conjunction with the drawings:

[0039] As shown in the drawings, Figure 1 — Figure 7 The embodiment provides a yellowing-resistant sponge material production equipment, which comprises a main material stirring system 1, a vibration conveying system 2, a conveying opening and closing device 3, a rotary barrel 4, a barrel body rotation system 5 and a stirring inner bag 6. The stirring inner bag 6 is installed in the rotary barrel 4, the rotary barrel 4 is installed at the output end of the barrel body rotation system 5, the barrel body rotation system 5 drives the rotary barrel 4 to rotate, realizes rapid mixing of the material, the height of the main material stirring system 1 is higher than that of the rotary barrel 4, which facilitates the falling of the material under the action of gravity, the main material stirring system 1 is connected with the rotary barrel 4 through the vibration conveying system 2, which promotes the downward flow of the material and facilitates the rapid mixing of the material in the rotary barrel 4, realizes the rapid discharge of the material in the main material stirring system 1, the vibration conveying system 2 is provided with the conveying opening and closing device 3 at the end, which realizes the control of the discharge of the material, the rotary barrel 4 is provided with a tail material conveying pipe 41 and an air pressure system 42, the tail material conveying pipe 41 is used for conveying the curing agent and the foaming agent put in last, the air pressure system 42 is connected with the outside of the stirring inner bag 6, after the air pressure system 42 is ventilated, the material in the stirring inner bag 6 is quickly extruded out, the tail material conveying pipe 41 is connected with the inside of the stirring inner bag 6 through a hose, which avoids interference in the shrinking process of the stirring inner bag 6, the opening part of the stirring inner bag 6 is provided with an inner bag opening and closing device 61, which controls the discharge of the material in the stirring inner bag 6, discharges the material mixed with the curing agent and the foaming agent, under the action of air pressure, the stirring inner bag 6 is completely deflated, all the materials in the stirring inner bag 6 are discharged, and then the material is saved.

[0040] After the inner bag opening and closing device 61 is opened, the material is poured into the forming groove at the lower side of the rotary drum 4. In order to weigh the mass of the material in the forming groove, a weight sensor is arranged at the bottom of the forming groove.

[0041] Specifically, the air pressure system 42 comprises a quick air inlet device 421, a main air inlet pipe 422 and a main air inlet opening and closing device 423. The main air inlet pipe 422 is installed on the rotary drum 4 and is connected to the inside of the rotary drum 4. The main air inlet pipe 422 is connected to the outside of the stirring inner bag 6. The main air inlet opening and closing device 423 is installed at the end of the main air inlet pipe 422. The quick air inlet device 421 comprises an air inlet support plate 4211 and an auxiliary air inlet pipe 4212. The air inlet support plate 4211 is installed in the main air inlet pipe 422. The auxiliary air inlet pipe 4212 is installed on the air inlet support plate 4211 and penetrates through the main air inlet pipe 422. The auxiliary air inlet pipe 4212 is connected to an air pump outside the main air inlet pipe 422. The auxiliary air inlet pipe 4212 is in the main air inlet pipe 422 and points to the stirring inner bag 6. Before the weight sensor weighs the material flowing into the forming groove to reach 80% of the total material amount, the main air inlet opening and closing device 423 is opened, and the auxiliary air inlet pipe 4212 sprays air. Under the driving of the auxiliary air inlet pipe 4212, the air in the main air inlet pipe 422 also quickly enters the rotary drum 4, so that the stirring inner bag 6 quickly shrinks and the material is quickly discharged. After the weight sensor weighs the material flowing into the forming groove to reach 80% of the total material amount, the main air inlet opening and closing device 423 closes the main air inlet pipe 422. At this time, the air pump supplies air to the rotary drum 4 through the auxiliary air inlet pipe 4212 to pressurize the stirring inner bag 6, so that the stirring inner bag 6 shrinks under pressure and is completely discharged.

[0042] In order to make the stirring inner bag 6 recyclable, the stirring inner bag 6 can be made of polyethylene material, which is convenient for repeated recycling. After the stirring inner bag 6 is used for stirring for five times, tetrachloroethylene is introduced into the stirring inner bag 6 for dissolution cleaning. In order to clean the surface of the forming groove, the forming groove can also be cleaned with tetrachloroethylene.

[0043] Specifically, the main material stirring system 1 comprises a main material stirring tank 11, a main material stirring motor 12 and a main material stirring paddle 13. The main material stirring paddle 13 is rotatably installed in the main material stirring tank 11. The main material stirring motor 12 is installed outside the main material stirring tank 11 and is in driving connection with the main material stirring paddle 13 to realize stirring of the main material. The main material stirring tank 11 is loaded with isocyanate. Since aliphatic or alicyclic does not contain aromatic group, yellowing is avoided.

[0044] Specifically, the vibration conveying system 2 comprises a flexible frame 21, an inclined pipe 22 and a vibration motor 23, the vibration motor 23 is installed on the flexible frame 21, the inclined pipe 22 is installed on the flexible frame 21, the inclined pipe 22 is communicated with the main material stirring system 1 through a hose to realize the discharge of the main material, the flexible frame 21 realizes the flexible fixation of the inclined pipe 22 through a spring, and the vibration motor 23 makes the inclined pipe 22 vibrate after being started to facilitate the flow of the material in the inclined pipe 22.

[0045] Specifically, the conveying opening and closing device 3 comprises a conveying opening and closing cylinder and a conveying opening and closing plate, the conveying opening and closing plate is rotatably installed at the end of the inclined pipe 22, the conveying opening and closing cylinder is installed on the inclined pipe 22, and the conveying opening and closing cylinder is in transmission connection with the conveying opening and closing plate to realize the control of the discharge of the main material.

[0046] Specifically, the rotary barrel 4 is provided with a rotary joint close to the barrel body rotation system 5, the auxiliary air inlet pipe 4212 of the air pressure system 42 is communicated with the air pump through the rotary joint to maintain the air flow supply, the main air inlet opening and closing device 423 is a structure in which a main air inlet opening and closing motor drives a cover plate, the main air inlet opening and closing motor is powered through the rotary joint to realize the opening and closing of the main air inlet opening and closing device 423.

[0047] Specifically, the barrel body rotation system 5 comprises a barrel body rotation motor 51, a barrel body rotation shaft 52 and a barrel body rotation support frame 53, the barrel body rotation shaft 52 is rotatably installed on the barrel body rotation support frame 53, the barrel body rotation motor 51 is installed in the barrel body rotation support frame 53, the barrel body rotation motor 51 is in transmission connection with the barrel body rotation shaft 52 through a chain, and the rotary barrel 4 is installed on the barrel body rotation shaft 52 to realize the rotation of the rotary barrel 4.

[0048] Specifically, the stirring inner bag 6 is made of PE material to ensure the rapid discharge of the material.

[0049] The production method of the yellowing-resistant sponge material and the production equipment of the yellowing-resistant sponge material comprise the following steps:

[0050] S1: pouring the main material comprising isocyanate into the main material stirring system 1 for stirring;

[0051] S2: opening the vibration conveying system 2 to facilitate the flow of the material, opening the conveying opening and closing device 3, and synchronously opening the inner bag opening and closing device 61 to flow the material into the stirring inner bag 6;

[0052] S3: closing the conveying opening and closing device 3, synchronously closing the inner bag opening and closing device 61, pouring the foaming agent and the curing agent into the tail material conveying pipe 41, and rotating the rotary barrel 4 by the barrel body rotation system 5;

[0053] S4: after the stirring is completed, opening the inner bag opening and closing device 61 when the inner bag opening and closing device 61 is downward, and ventilating the air pressure system 42.

[0054] The essential principles and main features of the present application and the advantages thereof have been shown and described above, and it should be understood by those skilled in the art that the present application is not limited to the above-described embodiments, and the above-described embodiments and descriptions in the specification are only to illustrate the principles of the present application. Various changes and improvements can be made to the present application without departing from the spirit and scope of the present application, and such changes and improvements fall within the scope of the present application claimed. The scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A spongy material production apparatus resistant to yellowing, characterized by, The utility model provides a kind of material mixing system, including main material stirring system, vibration conveying system, conveying opening and closing device, rotary barrel, barrel body rotation system and stirring inner bag, the stirring inner bag is installed in rotary barrel, the rotary barrel is installed in the output end of barrel body rotation system, the barrel body rotation system drives rotary barrel to rotate, the height of main material stirring system is higher than rotary barrel, main material stirring system is connected with rotary barrel by vibration conveying system, the end of vibration conveying system is equipped with conveying opening and closing device, rotary barrel is equipped with tail material conveying pipe and gas pressure system, the gas pressure system is connected with the outside of stirring inner bag, tail material conveying pipe is connected with the inside of stirring inner bag by hose, the mouth of stirring inner bag is equipped with inner bag opening and closing device, the lower side of rotary barrel is equipped with forming groove, the bottom of forming groove is equipped with weight sensor, the gas pressure system includes quick air inlet device, main air inlet pipe and main air inlet opening and closing device, main air inlet pipe is installed on rotary barrel, main air inlet pipe is connected with the inside of rotary barrel, main air inlet pipe is connected to the outside of stirring inner bag, main air inlet opening and closing device is installed in the end of main air inlet pipe, the quick air inlet device includes air inlet support plate and auxiliary air inlet pipe, air inlet support plate is installed in main air inlet pipe, auxiliary air inlet pipe is installed on air inlet support plate, auxiliary air inlet pipe passes through main air inlet pipe, auxiliary air inlet pipe is connected to the air pump outside main air inlet pipe, auxiliary air inlet pipe is in main air inlet pipe and auxiliary air inlet pipe points to stirring inner bag, before weight sensor weighs the material flowing into forming groove and reaches 80% of total material amount, main air inlet opening and closing device opens, auxiliary air inlet pipe sprays, after weight sensor weighs the material flowing into forming groove and reaches 80% of total material amount, main air inlet opening and closing device closes main air inlet pipe, at this time, air pump pressurizes and supplies air to rotary barrel via auxiliary air inlet pipe.

2. The yellowing-resistant sponge production apparatus according to claim 1, wherein The main material stirring system includes a main material stirring tank, a main material stirring motor and a main material stirring paddle, the main material stirring paddle is rotatably installed in the main material stirring tank, and the main material stirring motor is installed outside the main material stirring tank and in transmission connection with the main material stirring paddle.

3. The yellowing-resistant sponge production apparatus according to claim 1, wherein The vibration conveying system includes a flexible frame, an inclined pipe and a vibration motor, the vibration motor is installed on the flexible frame, the inclined pipe is installed on the flexible frame, and the inclined pipe is connected with the main material stirring system by a hose.

4. The yellowing-resistant sponge production apparatus according to claim 1, wherein The conveying opening and closing device includes a conveying opening and closing cylinder and a conveying opening and closing plate, the conveying opening and closing plate is rotatably installed at the end of the inclined pipe, the conveying opening and closing cylinder is installed on the inclined pipe and in transmission connection with the conveying opening and closing plate.

5. The yellowing-resistant sponge production apparatus according to claim 1, wherein The rotary barrel is provided with a rotary joint near the barrel body rotation system, and the gas pressure system is connected with the rotary joint.

6. The yellowing-resistant sponge production apparatus according to claim 1, wherein The barrel body rotation system includes a barrel body rotation motor, a barrel body rotation shaft and a barrel body rotation support frame, the barrel body rotation shaft is rotatably installed on the barrel body rotation support frame, the barrel body rotation motor is installed in the barrel body rotation support frame and in transmission connection with the barrel body rotation shaft, and the rotary barrel is installed on the barrel body rotation shaft.

7. The yellowing-resistant sponge production apparatus according to claim 1, wherein The stirring inner bag is made of PE material.

8. A method for producing a yellowing-resistant sponge material using the yellowing-resistant sponge material production apparatus according to claim 1, characterized by, The method includes the following steps: S1: Pour the main material including isocyanate into the main material stirring system; S2: Vibrate the conveying system to facilitate the flow of the material, open the conveying opening and closing device, and simultaneously open the inner bag opening and closing device to flow the material into the stirring inner bag; S3: Close the conveying opening and closing device, and simultaneously close the inner bag opening and closing device, pour the tail material conveying pipe into the foaming agent and curing agent, and drive the rotating barrel to rotate by the barrel body rotating system; S4: After the stirring is completed, open the inner bag opening and closing device when the inner bag opening and closing device faces downward, and ventilate by the air pressure system.

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