A natural latex blending foaming machine and preparation method thereof

Abstract

The present invention relates to the field of latex foaming technology, and in particular to a natural latex blending foaming machine and a preparation method thereof. The technical solution comprises: an operating platform and a foaming mechanism installed on the operating platform, the foaming mechanism comprising a foaming barrel, the foaming barrel being arranged on the operating platform, a top cover being provided on the foaming barrel, the top cover being used to seal the top of the foaming barrel, a sealing piston being provided in the foaming barrel, the sealing piston being used to assist in discharging the foamed material, a stirring assembly for latex foaming being provided on the sealing piston, a cooling water tank being provided on the foaming barrel, the cooling water tank being used to reduce the temperature of the material in the foaming barrel, a power assembly being provided on the foaming barrel, the power assembly being used to aerate the cooling water tank, push the sealing piston to move, and drive the stirring assembly to rotate. The present invention can solve the problems of low latex discharge efficiency and premature solidification of latex caused by heat generated by stirring, which affects the foaming quality.

Description

Technical Field

[0001] The invention relates to the technical field of latex foaming, in particular to a natural latex blending foaming machine and a preparation method thereof. Background Art

[0002] A natural latex blending and foaming machine is used to mix natural latex with additives such as a blowing agent and a vulcanizing agent, and then form a foam structure through mechanical stirring or chemical foaming. It is widely used in the production of latex mattresses, pillows, and other products. Its core function is to thoroughly mix the latex and gas through a stirring device to form a uniform foam system. The discharge mechanism then delivers the foamed latex to the mold for curing and molding.

[0003] At present, there are significant technical problems in the use of natural latex blending foaming machines: on the one hand, after latex foaming, its volume expands, viscosity increases significantly and fluidity decreases sharply, resulting in insufficient conveying capacity of high-viscosity materials by traditional gravity discharge method, slow discharge speed and high residual rate. At the same time, high-viscosity latex easily adheres to the inner wall of the discharge pipe or the discharge port, causing material accumulation or even blockage, resulting in poor discharge. On the other hand, mechanical friction heat generated during stirring will cause the temperature of the latex raw material to rise. If the temperature exceeds the critical value (usually 40-50°C), the vulcanization reaction will accelerate, which can easily cause the latex to solidify prematurely, affecting the foaming uniformity and product performance.

[0004] Therefore, in view of the above problems, a natural latex blending foaming machine and a preparation method thereof are proposed. Summary of the Invention

[0005] The purpose of the present invention is to provide a natural latex blending foaming machine and a preparation method thereof, which can solve the problems of low latex discharge efficiency and premature solidification of latex caused by stirring heat, affecting foaming quality.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a natural latex blending foaming machine and a preparation method thereof, comprising an operating platform and a foaming mechanism installed on the operating platform, the foaming mechanism comprising a foaming barrel, the foaming barrel being arranged on the operating platform, the foaming barrel being provided with a top cover, the top cover being used to seal the top of the foaming barrel, the foaming barrel being provided with a sealing piston, the sealing piston being used to assist in discharging the foamed material, the sealing piston being provided with a stirring assembly for latex foaming, the foaming barrel being provided with a cooling water trough, the cooling water trough being used to reduce the temperature of the material in the foaming barrel, the foaming barrel being provided with a power assembly, the power assembly being used to aerate the cooling water trough, push the sealing piston to move and drive the stirring assembly to rotate.

[0007] Preferably, the operating platform includes a first support frame and a second support frame, the first support frame is provided with a panel and a support rod, and the first support frame supports the entire foaming machine through the panel and the support rod;

[0008] The second support frame is fixedly mounted on one side of the first support frame. A placement plate is mounted on the second support frame. The placement plate is used for placing a mold for receiving latex.

[0009] When the above technical solution is adopted, the operating platform achieves stable support for the entire foaming machine through the panel and support rod of the first support frame. The second support frame and the placement plate thereon provide a placement position for the mold that receives the latex, thereby achieving stable support for the foaming machine by the operating platform and convenience in placing the mold.

[0010] Preferably, the foaming barrel is provided with a feed pipe and a discharge pipe, the feed pipe is used to input materials into the foaming barrel, and the discharge pipe is used to discharge the foamed materials, and the feed pipe and discharge pipe are respectively provided with a feed sealing cover and a discharge sealing cover.

[0011] When the above technical solution is adopted, the feed pipe and discharge pipe on the foaming barrel are used for the input and discharge of materials respectively. The feed sealing cover and the discharge sealing cover can seal the feed pipe and the discharge pipe, realizing convenient input and discharge of materials and sealing the foaming barrel, preventing material leakage and external impurities from entering.

[0012] Preferably, the foaming barrel is further provided with a residual material discharge groove, which is used to discharge the residual material on the sealing piston, and the residual material discharge groove is provided with a residual material sealing cover.

[0013] When the above technical solution is adopted, the residual material discharge groove on the foaming barrel can discharge the residual material on the sealing piston, and the residual material sealing cover can seal the residual material discharge groove, thereby cleaning the residual material on the sealing piston and avoiding the accumulation of residual material affecting equipment operation and material quality.

[0014] Preferably, the top cover is provided with a first reserved hole and a limiting rod, the first reserved hole is used for injecting and discharging gas, the limiting rod is used to limit the rising height of the sealing piston, and the top cover is fixedly connected to the foaming barrel through a locking assembly;

[0015] The locking assembly consists of a fixing buckle and a locking buckle, the fixing buckle is installed on the top cover, and the locking buckle is installed on the foaming barrel.

[0016] When the above technical solution is adopted, the first reserved hole in the top cover is used for the injection and discharge of gas, the limit rod limits the rising height of the sealing piston, and the locking assembly composed of the fixing buckle and the locking buckle realizes the fixed connection between the top cover and the foaming barrel, thereby realizing the sealed connection between the top cover and the foaming barrel, the smooth flow of gas and the limitation of the rising height of the sealing piston, thereby ensuring the sealing and safety of the foaming process.

[0017] Preferably, the cooling water tank is sleeved on the outside of the foaming barrel, and a liquid replenishing pipe and a first air outlet pipe are provided on the cooling water tank. The liquid replenishing pipe is used to replenish the coolant in the cooling water tank, and the first air outlet pipe is used to discharge gas.

[0018] The liquid infusion pipe is provided with a liquid infusion sealing cover, the first air outlet pipe is provided with an air outlet branch pipe installed with an exhaust main valve, and the cooling water tank is also provided with a hole for air intake;

[0019] The cooling water trough is provided with a second reserved hole for the discharge pipe to pass through.

[0020] When adopting the above technical solution, the cooling water tank is installed on the outside of the foaming barrel, and the coolant can be replenished through the liquid replenishment pipe. The exhaust main valve on the first air outlet pipe and the air outlet branch pipe is used to discharge the gas, and the second reserved hole is for the unloading pipe to pass through. The setting of the cooling water tank realizes the cooling of the material in the foaming barrel, prevents the latex from solidifying prematurely due to heat generated by stirring, and ensures the foaming quality.

[0021] Preferably, the power assembly includes an air intake main pipe, on which an air intake main valve and a first reversing valve are provided, and the air intake main pipe is connected to the bypass connecting pipe and the air intake branch pipe respectively through the first reversing valve;

[0022] The air inlet branch pipe is connected to a second air outlet pipe through a pneumatic motor, and a second reversing valve is provided on the second air outlet pipe. The second air outlet pipe is connected to the exhaust ring pipe and the foaming barrel through the second reversing valve. The exhaust ring pipe is arranged in the cooling water tank and is used to cool the coolant in the cooling water tank;

[0023] The bypass connecting pipe is connected to the second gas outlet pipe and is used to directly input gas into the exhaust ring pipe to participate in cooling.

[0024] When the above technical solution is adopted, the air intake main pipe of the power component is connected to the bypass connecting pipe and the air intake branch pipe through the first reversing valve, the air intake branch pipe is connected to the second air outlet pipe through the pneumatic motor, the second air outlet pipe is connected to the exhaust ring pipe and the foaming barrel through the second reversing valve, and the exhaust ring pipe is arranged in the cooling water tank, thereby providing gas power for the foaming process, and utilizing the gas discharged by the pneumatic motor to cool the coolant in the cooling water tank through the exhaust ring pipe, thereby improving energy utilization efficiency and cooling effect.

[0025] Preferably, the stirring assembly includes a transmission rod and stirring blades, the stirring blades are installed on the transmission rod in a circular array, one end of the transmission rod is connected to the pneumatic motor, and the other end of the transmission rod extends into the foaming barrel and passes through the top cover, and the stirring blades are provided with a spoiler groove.

[0026] When the above technical solution is adopted, the transmission rod of the stirring assembly is connected to the pneumatic motor, and the stirring blades are installed on the transmission rod in a circular array. The stirring blades are provided with turbulence grooves, which realize the rotation of the stirring blades by the pneumatic motor to stir the latex. The turbulence grooves can enhance the turbulence effect during the stirring process, making the latex and foaming agent more evenly mixed and improving the foaming quality.

[0027] A natural latex blending and foaming preparation method, using any of the natural latex blending and foaming machines described above, comprises the following steps:

[0028] Step 1: Check whether the first support frame and the second support frame of the operating platform are firmly connected, whether the feed sealing cover, discharge sealing cover, residual material sealing cover, and liquid filling sealing cover are well sealed, and inject coolant into the cooling water tank through the liquid filling pipe of the cooling water tank to the appropriate water level;

[0029] Step 2: Open the feed sealing cover of the feed pipe, add the natural latex raw material, foaming agent and vulcanizing agent into the foaming barrel through the feed pipe, and close the feed sealing cover;

[0030] Step 3: Open the main air inlet valve and adjust the first reversing valve to start the pneumatic motor, and drive the stirring blade to rotate through the transmission rod to perform the foaming operation. After that, adjust the second reversing valve again to allow the gas to enter the cooling water tank through the exhaust ring pipe to participate in cooling;

[0031] Step 4: After foaming is completed, open the discharge sealing cover of the discharge pipe, adjust the first reversing valve and the second reversing valve, so that the gas enters the exhaust ring pipe through the air inlet main pipe and the air inlet branch pipe, and then enters the top cover through the first air outlet pipe, pushing the sealing piston to move downward along the axial direction of the transmission rod. The sealing piston is provided with a reserved groove that matches the cross-sectional size of the stirring component. The sealing piston moves along the transmission rod of the stirring component through the reserved groove on it, and squeezes the foamed latex out of the discharge pipe;

[0032] Step 5: After the discharge is completed, open the residual material sealing cover of the residual material discharge trough, close the discharge sealing cover, and adjust the first reversing valve and the second reversing valve again to allow the gas to enter the foaming barrel through the air inlet main pipe, the air inlet branch pipe, the second air outlet pipe and the second reversing valve, and make the sealing piston move axially upward in the foaming barrel to clean the residual material on the sealing piston through the residual material discharge trough. After cleaning, close the residual material sealing cover and repeat the above operation to perform continuous foaming operation.

[0033] In step three, the air inlet end of the pneumatic motor is connected to the air inlet main pipe through the air inlet branch pipe, and the air exhaust end of the pneumatic motor is connected to the second air outlet pipe. By adjusting the first reversing valve, the gas is driven to operate through the air inlet main pipe and the air inlet branch pipe. The gas exhausted by the pneumatic motor is briefly introduced into the foaming barrel through the second air outlet pipe and the second reversing valve to participate in foaming. Subsequently, the exhaust gas is directed to the exhaust ring pipe by adjusting the second reversing valve, so that the gas enters the air outlet branch pipe of the cooling water tank through the exhaust ring pipe and is discharged through the normally open exhaust main valve.

[0034] In step 4, the cross-sectional size of the reserved groove of the sealing piston matches the cross-sectional size of the transmission rod. The sealing piston is sleeved on the transmission rod through the reserved groove and can slide axially along the transmission rod. When the gas enters the space between the top cover and the sealing piston through the air intake main pipe, the air intake branch pipe, the exhaust ring pipe, and the first air outlet pipe, the gas pressure pushes the sealing piston to move downward along the axial direction of the transmission rod. During this axial movement, the inner walls on both sides of the reserved groove at the spoiler groove are in dynamic contact and seal the spoiler groove. The outer wall of the sealing piston fits with the inner wall of the foaming barrel, and the foamed latex is squeezed out from the discharge pipe at the bottom;

[0035] In step five, the first reversing valve and the second reversing valve are adjusted to allow the gas to directly enter the bottom of the foaming barrel through the air inlet main pipe and the second reversing valve, pushing the sealing piston to move upward along the axial direction of the transmission rod through the reserved groove to the position of the residual material discharge groove. The residual material discharge groove is located at the top of the foaming barrel and corresponds to the movement trajectory of the sealing piston. The residual material is scraped to the residual material discharge groove as the sealing piston moves upward and is discharged.

[0036] Compared with the prior art, the present invention has the following beneficial effects:

[0037] The present invention achieves the effect of significantly improving the latex discharge efficiency and solving the problem of poor discharge of high-viscosity materials by arranging a sealing piston and configuring a power component in the foaming barrel. The sealing piston is directly installed in the foaming barrel and combined with the stirring component. When foaming is completed, the gas power provided by the power component can drive the sealing piston to move axially. Its outer wall fits tightly with the inner wall of the foaming barrel, and can efficiently squeeze out the expanded and high-viscosity foamed latex from the discharge pipe, which completely changes the limitation of traditional gravity discharge that relies on material fluidity, avoids the problems of slow discharge speed and high residual rate, and ensures the smoothness of the discharge process.

[0038] By installing a cooling water trough on the outside of the foaming barrel and coordinating it with the gas-powered cooling mechanism of the power assembly, the temperature of the material inside the foaming barrel is precisely controlled, preventing the latex from prematurely curing. The cooling water trough directly surrounds the foaming barrel and continuously absorbs the heat generated by mechanical friction during the stirring process by injecting coolant, preventing the material temperature from exceeding the critical value. While the power assembly provides gas power for the foaming process, its gas flow path is linked to the cooling system to further enhance cooling efficiency. This dual measure ensures that the latex is foamed at an appropriate temperature, fundamentally solving the problem of excessively high temperatures accelerating the vulcanization reaction, affecting foaming uniformity and product performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0040] Figure 2 Schematic diagram of the operating platform structure of the present invention;

[0041] Figure 3 It is a schematic structural diagram of the foaming mechanism of the present invention;

[0042] Figure 4 This is a schematic diagram of the cross-sectional structure of the foaming barrel of the present invention from one viewing angle;

[0043] Figure 5 This is a schematic cross-sectional view of the foaming barrel of the present invention from another perspective;

[0044] Figure 6 This is a schematic diagram of the power assembly structure of the present invention;

[0045] Figure 7 It is a schematic diagram of the cooling water tank structure of the present invention;

[0046] Figure 8 Schematic diagram of the cross-sectional structure of the top cover of the present invention;

[0047] Figure 9 This is a schematic structural diagram of the stirring assembly of the present invention;

[0048] Figure 10 It is a schematic diagram of the sealing piston structure of the present invention.

[0049] In the figure: 1. operating platform; 11. first support frame; 111. panel; 112. support rod; 12. second support frame; 121. placement plate; 2. foaming mechanism; 21. foaming barrel; 211. feed pipe; 212. feed sealing cover; 213. residual material discharge trough; 214. residual material sealing cover; 215. discharge pipe; 216. discharge sealing cover; 217. locking buckle; 22. top cover; 221. first reserved hole; 222. limit rod; 223. fixing buckle; 23. cooling water trough; 231. second reserved hole; 23 2. Fluid replenishment tube; 233. Fluid replenishment sealing cap; 234. First air outlet pipe; 235. Air outlet branch pipe; 2351. Exhaust main valve; 24. Power assembly; 241. Air intake main pipe; 2411. Air intake main valve; 2412. First reversing valve; 242. Bypass connecting pipe; 243. Air intake branch pipe; 244. Second air outlet pipe; 2441. Second reversing valve; 245. Exhaust ring pipe; 3. Stirring assembly; 31. Drive rod; 32. Stirring blade; 321. Turbine groove; 4. Sealing piston; 41. Reserved groove; 5. Pneumatic motor. DETAILED DESCRIPTION

[0050] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example

[0051] like Figures 1 to 10 As shown, an embodiment of the present invention is: a natural latex blending foaming machine and a preparation method thereof, comprising an operating platform 1 and a foaming mechanism 2 installed on the operating platform 1, the foaming mechanism 2 comprising a foaming barrel 21, the foaming barrel 21 being arranged on the operating platform 1, the foaming barrel 21 being provided with a top cover 22, the top cover 22 being used to seal the top of the foaming barrel 21, a sealing piston 4 being provided in the foaming barrel 21, the sealing piston 4 being used to assist in discharging the foamed material, a stirring assembly 3 for latex foaming being provided on the sealing piston 4, a cooling water tank 23 being provided on the foaming barrel 21, the cooling water tank 23 being used to reduce the temperature of the material in the foaming barrel 21, a power assembly 24 being provided on the foaming barrel 21, the power assembly 24 being used to aerate the cooling water tank 23, push the sealing piston 4 to move and drive the stirring assembly 3 to rotate.

[0052] Specifically, by arranging a sealing piston 4 in the foaming barrel 21 and configuring a power assembly 24, the effect of significantly improving the latex discharge efficiency and solving the problem of poor discharge of high-viscosity materials is achieved. The sealing piston 4 is directly installed in the foaming barrel 21 and combined with the stirring assembly 3. When the foaming is completed, the gas power provided by the power assembly 24 can drive the sealing piston 4 to move axially. Its outer wall fits tightly with the inner wall of the foaming barrel 21, and can efficiently squeeze out the volume-expanded and high-viscosity foamed latex from the discharge pipe 215, which completely changes the limitation of traditional gravity discharge relying on material fluidity, avoids the problems of slow discharge speed and high residual rate, and ensures the smoothness of the discharge process.

[0053] By installing a cooling water tank 23 outside the foaming barrel 21 and coordinating it with the gas-powered cooling mechanism of the power assembly 24, the temperature of the material in the foaming barrel is precisely controlled, preventing the latex from prematurely solidifying. The cooling water tank 23 directly surrounds the foaming barrel 21 and continuously absorbs the heat generated by mechanical friction during the stirring process by injecting coolant, preventing the material temperature from exceeding the critical value. While the power assembly 24 provides gas power for the foaming process, its gas flow path is linked to the cooling system to further enhance the cooling efficiency. These two measures ensure that the latex is foamed at an appropriate temperature, fundamentally solving the problem of excessively high temperatures accelerating the vulcanization reaction, affecting foaming uniformity and product performance. Example

[0054] In order to achieve a series of smooth operations from material input, stirring and foaming to discharge, and to improve production efficiency and product quality, such as Figure 2 、 Figure 3 、 Figure 6 and Figure 9 As shown, in this embodiment, the operating platform 1 includes a first support frame 11 and a second support frame 12. The first support frame 11 is provided with a panel 111 and a support rod 112 to support the entire foaming machine. The second support frame 12 is fixedly installed on one side of the first support frame 11 and is provided with a placement plate 121 for placing a mold for receiving latex.

[0055] The foaming barrel 21 is mounted on the operating platform 1 and is equipped with a feed pipe 211, a discharge pipe 215, and a residual material discharge trough 213. These are equipped with a feed sealing cover 212, a discharge sealing cover 216, and a residual material sealing cover 214. The stirring assembly 3 includes a transmission rod 31 and stirring blades 32. One end of the transmission rod 31 is connected to the pneumatic motor 5, and the other end extends into the foaming barrel 21 and through the top cover 22. The stirring blades 32 are mounted in an annular array on the transmission rod 31 and are equipped with a spoiler groove 321.

[0056] An intake main pipe 241 of the power assembly 24 is provided with an intake main valve 2411 and a first reversing valve 2412 , which are respectively connected to a bypass connecting pipe 242 and an intake branch pipe 243 through the first reversing valve 2412 . The intake branch pipe 243 is connected to a second outlet pipe 244 through the pneumatic motor 5 .

[0057] The operating platform 1 provides a stable support structure for the entire foaming machine and is convenient for placing the latex mold, facilitating subsequent operations. The feed pipe 211 and discharge pipe 215 of the foaming barrel 21 cooperate with the feed sealing cover 212 and discharge sealing cover 216 to achieve convenient input and discharge of materials and ensure the sealing of the foaming barrel 21.

[0058] The residual material discharge groove 213 and the residual material sealing cover 214 can clean the residual material on the sealing piston 4 to prevent the accumulation of residual material from affecting the operation of the equipment and the quality of the material.

[0059] Driven by power assembly 24, pneumatic motor 5 drives stirring blade 32 to rotate. Turbulating groove 321 enhances the turbulent flow during the stirring process, ensuring a more uniform mixing of the latex and the foaming agent, thereby improving the foaming quality. This embodiment achieves a smooth operation from material input, stirring and foaming, to material discharge, thereby improving production efficiency and product quality. Example

[0060] In order to effectively solve the problems of low latex discharge efficiency and premature curing of latex caused by stirring heat, affecting foaming quality, and improve energy utilization efficiency, such as Figure 4 、 Figure 5 、 Figure 7 、 Figure 8 and Figure 10 As shown, in this embodiment, the top cover 22 is provided with a first reserved hole 221 and a limiting rod 222, and is fixedly connected to the foaming barrel 21 via a locking assembly consisting of a fixing buckle 223 and a locking buckle 217. The cooling water tank 23 is sleeved on the outside of the foaming barrel 21 and is equipped with a liquid replenishing pipe 232, a first air outlet pipe 234, an air outlet branch pipe 235, and a main exhaust valve 2351. It also has a hole for air intake and a second reserved hole 231 for the discharge pipe 215 to pass through.

[0061] The main intake pipe 241 of the power assembly 24 is connected to the bypass connecting pipe 242 and the intake branch pipe 243 via a first reversing valve 2412. The intake branch pipe 243 is connected to the second outlet pipe 244 via the pneumatic motor 5. The second outlet pipe 244 is connected to the exhaust ring pipe 245 and the foaming barrel 21 via a second reversing valve 2441. The exhaust ring pipe 245 is located in the cooling water tank 23, and the bypass connecting pipe 242 is connected to the second outlet pipe 244. A sealing piston 4 is provided in the foaming barrel 21.

[0062] The first reserved hole 221 of the top cover 22 ensures the injection and discharge of gas, the limiting rod 222 limits the rising height of the sealing piston 4, and the locking assembly realizes the sealed connection between the top cover 22 and the foaming barrel 21, ensuring the sealing and safety of the foaming process.

[0063] The cooling water tank 23 is mounted on the outside of the foaming barrel 21, and the coolant is replenished through the liquid replenishing pipe 232. The exhaust main valve 2351 on the first outlet pipe 234 and the outlet branch pipe 235 discharges gas to cool the material in the foaming barrel 21 to prevent the latex from solidifying prematurely due to heat generated by stirring.

[0064] The power assembly 24 not only provides gas power for the foaming process, but also utilizes the gas exhausted by the pneumatic motor 5 to cool the coolant in the cooling water tank 23 through the exhaust ring pipe 245, thereby improving energy utilization efficiency and cooling effect.

[0065] Under the action of the gas power provided by the power assembly 24, the sealing piston 4 can assist in discharging the foamed material and cooperate with the residual material discharge groove 213 to clean up the residual material. This embodiment effectively solves the problems of low latex discharge efficiency and premature curing of latex caused by stirring heat, which affects the foaming quality, while also improving energy utilization efficiency. Example

[0066] In order to achieve efficient and continuous natural latex blending and foaming operations, ensure foaming quality and optimize the discharge process, such as Figures 1 to 10 As shown, in this embodiment:

[0067] Step 1: Check whether the first support frame 11 and the second support frame 12 of the operating platform 1 are firmly connected, whether the feed sealing cover 212, the discharge sealing cover 216, the residual material sealing cover 214, and the liquid filling sealing cover 233 are well sealed, and inject coolant into the cooling water tank 23 through the liquid filling pipe 232 of the cooling water tank 23 to the appropriate water level;

[0068] Step 2: Open the feed sealing cover 212 of the feed pipe 211, add the natural latex raw material, foaming agent and vulcanizing agent into the foaming barrel 21 through the feed pipe 211, and close the feed sealing cover 212;

[0069] Step 3: Open the main air inlet valve 2411 and adjust the first reversing valve 2412 to start the pneumatic motor 5, which drives the stirring blade 32 to rotate through the transmission rod 31 to perform the foaming operation. Then, adjust the second reversing valve 2441 again to allow the gas to enter the cooling water tank 23 through the exhaust ring pipe 245 to participate in cooling;

[0070] Step 4: After foaming is completed, open the discharge sealing cover 216 of the discharge pipe 215, adjust the first reversing valve 2412 and the second reversing valve 2441, so that the gas enters the exhaust ring pipe 245 through the air inlet main pipe 241 and the air inlet branch pipe 243, and then enters the top cover 22 through the first air outlet pipe 234, pushing the sealing piston 4 to move axially downward along the transmission rod 31. The sealing piston 4 is provided with a reserved groove 41 that matches the cross-sectional size of the stirring assembly 3. The sealing piston 4 moves along the transmission rod 31 of the stirring assembly 3 through the reserved groove 41 thereon, and squeezes the foamed latex out of the discharge pipe 215;

[0071] Step 5: After the discharge is completed, open the residual material sealing cover 214 of the residual material discharge groove 213, and close the unloading sealing cover 216, and adjust the first reversing valve 2412 and the second reversing valve 2441 again, so that the gas enters the foaming barrel 21 through the air inlet main pipe 241, the air inlet branch pipe 243, the second air outlet pipe 244 and the second reversing valve 2441, and moves axially upward in the foaming barrel 21 through the sealing piston 4, so as to clean the residual material on the sealing piston 4 through the residual material discharge groove 213. After cleaning, close the residual material sealing cover 214, and repeat the above operation to perform continuous foaming operation.

[0072] In step three, the air inlet end of the pneumatic motor 5 is connected to the air inlet main pipe 241 through the air inlet branch pipe 243, and the air exhaust end of the pneumatic motor 5 is connected to the second air outlet pipe 244. By adjusting the first reversing valve 2412, the gas is driven to operate through the air inlet main pipe 241 and the air inlet branch pipe 243. The gas exhausted by the pneumatic motor 5 is briefly introduced into the foaming barrel 21 through the second air outlet pipe 244 and the second reversing valve 2441 to participate in foaming. Subsequently, the exhaust gas is directed to the exhaust ring pipe 245 by adjusting the second reversing valve 2441, so that the gas enters the air outlet branch pipe 235 of the cooling water tank 23 through the exhaust ring pipe 245 and is discharged through the normally open exhaust main valve 2351.

[0073] In step 4, the cross-sectional size of the reserved groove 41 of the sealing piston 4 matches the cross-sectional size of the transmission rod 31. The sealing piston 4 is sleeved on the transmission rod 31 through the reserved groove 41 and can slide axially along the transmission rod 31. When the gas enters the space between the top cover 22 and the sealing piston 4 through the air intake main pipe 241, the air intake branch pipe 243, the exhaust ring pipe 245, and the first air outlet pipe 234, the gas pressure pushes the sealing piston 4 to move axially downward along the transmission rod 31. During this axial movement, the inner walls on both sides of the reserved groove 41 at the spoiler groove 321 are in dynamic contact and seal the spoiler groove 321. The outer wall of the sealing piston 4 fits the inner wall of the foaming barrel 21, and the foamed latex is squeezed out from the discharge pipe 215 at the bottom.

[0074] In step five, the first reversing valve 2412 and the second reversing valve 2441 are adjusted to allow the gas to directly enter the bottom of the foaming barrel 21 through the air inlet main pipe 241 and the second reversing valve 2441, pushing the sealing piston 4 through the reserved groove 41 and moving axially upward along the transmission rod 31 to the position of the residual material discharge groove 213. The residual material discharge groove 213 is located at the top of the foaming barrel 21 and corresponds to the movement trajectory of the sealing piston 4. The residual material is scraped to the residual material discharge groove 213 as the sealing piston 4 moves upward and is discharged.

[0075] When the present invention is used, check whether the first support frame 11 and the second support frame 12 of the operating platform 1 are firmly connected, whether the feed sealing cover 212, the discharge sealing cover 216, the residual material sealing cover 214, and the liquid filling sealing cover 233 are well sealed, and inject coolant into the cooling water tank 23 through the liquid filling pipe 232 of the cooling water tank 23 to the appropriate water level;

[0076] Open the feed sealing cover 212 of the feed pipe 211, add the natural latex raw material, foaming agent and vulcanizing agent into the foaming barrel 21 through the feed pipe 211, and close the feed sealing cover 212;

[0077] Open the main air inlet valve 2411 and adjust the first reversing valve 2412 to start the pneumatic motor 5, which drives the stirring blade 32 to rotate through the transmission rod 31 to perform the foaming operation. Then, adjust the second reversing valve 2441 again to allow the gas to enter the cooling water tank 23 through the exhaust ring pipe 245 to participate in cooling.

[0078] After foaming is completed, the discharge sealing cover 216 of the discharge pipe 215 is opened, and the first reversing valve 2412 and the second reversing valve 2441 are adjusted to allow the gas to enter the exhaust ring pipe 245 through the air inlet main pipe 241 and the air inlet branch pipe 243, and then enter the top cover 22 through the first air outlet pipe 234, pushing the sealing piston 4 to move axially downward along the transmission rod 31. The sealing piston 4 is provided with a reserved groove 41 that matches the cross-sectional size of the stirring assembly 3. The sealing piston 4 moves along the transmission rod 31 of the stirring assembly 3 through the reserved groove 41 thereon, and squeezes the foamed latex out of the discharge pipe 215;

[0079] After the discharge is completed, the residual material sealing cover 214 of the residual material discharge groove 213 is opened, and the unloading sealing cover 216 is closed, and the first reversing valve 2412 and the second reversing valve 2441 are adjusted again to allow the gas to enter the foaming barrel 21 through the air inlet main pipe 241, the air inlet branch pipe 243, the second air outlet pipe 244 and the second reversing valve 2441, and the sealing piston 4 moves axially upward in the foaming barrel 21, so as to clean the residual material on the sealing piston 4 through the residual material discharge groove 213. After cleaning, the residual material sealing cover 214 is closed, and the above operation is repeated to perform continuous foaming operation.

[0080] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from all points of view, the embodiments should be regarded as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and range of equivalents of the claims are included in the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0081] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A natural latex blending and foaming machine, comprising an operating platform (1) and a foaming mechanism (2) mounted on the operating platform (1), wherein the foaming mechanism (2) comprises a foaming barrel (21), and is characterized in that: The foaming barrel (21) is arranged on the operating platform (1), and a top cover (22) is provided on the foaming barrel (21), and the top cover (22) is used to seal the top of the foaming barrel (21). A sealing piston (4) is provided in the foaming barrel (21), and the sealing piston (4) is used to assist in discharging the foamed material. A stirring assembly (3) for latex foaming is provided on the sealing piston (4). The foaming barrel (21) is provided with a cooling water tank (23), and the cooling water tank (23) is used to reduce the temperature of the material in the foaming barrel (21). The foaming barrel (21) is provided with a power assembly (24), and the power assembly (24) is used to aerate the cooling water tank (23), push the sealing piston (4) to move, and drive the stirring assembly (3) to rotate; The power assembly (24) includes an air intake main pipe (241), the air intake main pipe (241) is provided with an air intake main valve (2411) and a first reversing valve (2412), and the air intake main pipe (241) is connected to a bypass connecting pipe (242) and an air intake branch pipe (243) respectively through the first reversing valve (2412); The air inlet branch pipe (243) is connected to a second air outlet pipe (244) via a pneumatic motor (5); a second reversing valve (2441) is provided on the second air outlet pipe (244); the second air outlet pipe (244) is connected to an exhaust ring pipe (245) and a foaming barrel (21) via the second reversing valve (2441); the exhaust ring pipe (245) is provided in a cooling water tank (23); and the exhaust ring pipe (245) is used to cool the coolant in the cooling water tank (23); The bypass connecting pipe (242) is connected to the second gas outlet pipe (244) and is used to directly input gas into the exhaust ring pipe (245) to participate in cooling.

2. A natural latex blending and foaming machine according to claim 1, characterized in that, The operating platform (1) comprises a first support frame (11) and a second support frame (12); the first support frame (11) is provided with a panel (111) and a support rod (112); the first support frame (11) supports the entire foaming machine via the panel (111) and the support rod (112); The second support frame (12) is fixedly mounted on one side of the first support frame (11), and a placement plate (121) is mounted on the second support frame (12), wherein the placement plate (121) is used to place a mold for receiving latex.

3. A natural latex blending and foaming machine according to claim 1, characterized in that, The foaming barrel (21) is provided with a feed pipe (211) and a discharge pipe (215). The feed pipe (211) is used to input materials into the foaming barrel (21), and the discharge pipe (215) is used to discharge the foamed materials. The feed pipe (211) and the discharge pipe (215) are respectively provided with a feed sealing cover (212) and a discharge sealing cover (216).

4. A natural latex blending and foaming machine according to claim 3, characterized in that, The foaming barrel (21) is further provided with a residual material discharge groove (213), which is used to discharge residual material on the sealing piston (4), and a residual material sealing cover (214) is provided on the residual material discharge groove (213).

5. A natural latex blending and foaming machine according to claim 1, characterized in that, The top cover (22) is provided with a first reserved hole (221) and a limiting rod (222), the first reserved hole (221) is used for injecting and discharging gas, the limiting rod (222) is used for limiting the rising height of the sealing piston (4), and the top cover (22) is fixedly connected to the foaming barrel (21) via a locking assembly; The locking assembly is composed of a fixing buckle (223) and a locking buckle (217), wherein the fixing buckle (223) is mounted on the top cover (22), and the locking buckle (217) is mounted on the foaming barrel (21).

6. A natural latex blending and foaming machine according to claim 1, characterized in that, The cooling water tank (23) is sleeved on the outside of the foaming barrel (21), and a liquid replenishing pipe (232) and a first air outlet pipe (234) are provided on the cooling water tank (23), wherein the liquid replenishing pipe (232) is used to replenish the coolant in the cooling water tank (23), and the first air outlet pipe (234) is used to discharge gas; The liquid infusion pipe (232) is provided with a liquid infusion sealing cover (233), the first air outlet pipe (234) is provided with an air outlet branch pipe (235) installed with an exhaust main valve (2351), and the cooling water tank (23) is also provided with a hole for air intake; The cooling water tank (23) is provided with a second reserved hole (231) for the discharge pipe (215) to pass through.

7. A natural latex blending and foaming machine according to claim 1, characterized in that: The stirring assembly (3) comprises a transmission rod (31) and stirring blades (32). The stirring blades (32) are mounted on the transmission rod (31) in a ring array. One end of the transmission rod (31) is connected to the pneumatic motor (5). The other end of the transmission rod (31) extends into the foaming barrel (21) and passes through the top cover (22). The stirring blades (32) are provided with a turbulent groove (321).

8. A natural latex blending and foaming preparation method, characterized in that: The natural latex blending and foaming machine according to any one of claims 1 to 7 is used, comprising the following steps: Step 1: Check whether the first support frame (11) and the second support frame (12) of the operating platform (1) are firmly connected, whether the feed sealing cover (212), the discharge sealing cover (216), the residual material sealing cover (214), and the liquid filling sealing cover (233) are well sealed, and inject coolant into the cooling water tank (23) through the liquid filling pipe (232) of the cooling water tank (23) to the appropriate water level; Step 2: Open the feed sealing cover (212) of the feed pipe (211), add the natural latex raw material, the foaming agent and the vulcanizing agent into the foaming barrel (21) through the feed pipe (211), and close the feed sealing cover (212); Step 3: Open the main air inlet valve (2411) and adjust the first reversing valve (2412) to start the pneumatic motor (5), and drive the stirring blade (32) to rotate through the transmission rod (31) to perform the foaming operation. After that, adjust the second reversing valve (2441) again to allow the gas to enter the cooling water tank (23) through the exhaust ring pipe (245) to participate in cooling; Step 4: After foaming is completed, the discharge sealing cover (216) of the discharge pipe (215) is opened to allow gas to enter the top cover (22), pushing the sealing piston (4) to move axially downward along the transmission rod (31). The sealing piston (4) is provided with a reserved groove (41) that matches the cross-sectional size of the stirring component (3). The sealing piston (4) moves along the transmission rod (31) of the stirring component (3) through the reserved groove (41) thereon, and squeezes the foamed latex out of the discharge pipe (215); Step 5: After the discharge is completed, the residual material sealing cover (214) of the residual material discharge groove (213) is opened, and the discharge sealing cover (216) is closed, so that the gas enters the foaming barrel (21), and the sealing piston (4) moves axially upward in the foaming barrel (21), thereby cleaning the residual material on the sealing piston (4) through the residual material discharge groove (213). After cleaning, the residual material sealing cover (214) is closed, and the above operation is repeated to perform continuous foaming operation.

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