Silica gel slow-rebound memory sponge production process

Abstract

The present application relates to the technical field of foaming machine, in particular to a production process of silica gel slow-rebound memory sponge. The production process comprises a foaming machine, a forming cylinder, a booster and a heater. A material guiding pipe is connected between the foaming machine and the forming cylinder. A mixing cavity is formed in the foaming machine. The heater is externally provided with a water storage cavity. The bottom of the water storage cavity is connected with a water storage sleeve pipe sleeved outside the material guiding pipe. The gravity of the reciprocating plate pushes the hot water in the water storage cavity to push the partition plate downward, so that the hot water flows from the water storage cavity to the hot water cavity formed between the water storage sleeve pipe and the material guiding pipe for storage. When the raw materials flow in the preheated material guiding pipe, the heating is more uniform. The reciprocating plate moves upward in reverse to draw the hot water in the hot water cavity back to the water storage cavity again, preheats the inner wall of the mixing cavity in the foaming machine, and reduces the temperature difference between the raw materials and the inner wall of the mixing cavity through preheating the inner wall of the mixing cavity, so that the raw materials can reach the appropriate reaction temperature more quickly after being added, thereby shortening the production cycle and reducing the energy consumption.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of foaming machine, in particular to a production process of silica gel slow-rebound memory sponge. BACKGROUND

[0002] Sponge is a kind of porous material, which can be used in the field of vibration reduction and sound insulation. Memory sponge has soft touch and significant slow-rebound ability, can absorb impact force, reduce vibration, and has strong low-rebound force releasing ability. It can adapt to the surface shape of external force through stress relaxation.

[0003] There are many existing technologies for foaming machines, such as:

[0004] Chinese patent publication No. CN217944072U discloses a memory sponge high-pressure foaming machine, which relates to the technical field of foaming machine. The foaming machine comprises a foaming machine body, a machine cover installed on the top of the foaming machine body, a controller installed on the front end of the foaming machine body, a foaming barrel installed on the left side of the foaming machine body, a stirring mechanism installed inside the foaming machine body to improve the foaming speed of the foaming agent, and a supercharging mechanism installed outside the foaming machine body to increase the internal pressure. The utility model discloses a pressure reducer pipe and a supercharging pump, which are convenient for adjusting the internal pressure of the foaming machine body, avoiding the explosion of the foaming machine body due to excessive internal pressure, facilitating the supercharging operation of the supercharging pump on the inside of the foaming machine body, maintaining the high-pressure state of the inside of the foaming machine body, and cooperating with the pressure gauge and the controller to make the pressure inside the foaming machine body more stable, avoiding the proportioning disorder of the memory sponge due to unstable pressure, and improving the production efficiency of the memory sponge.

[0005] As can be seen from the prior art, when manufacturing memory sponge, the raw materials for preparing memory sponge are added to the foaming machine for stirring, and the heater is used to heat the foaming agent inside the foaming machine during stirring to make the foaming agent soft, so as to improve the foaming speed and production efficiency. Then, after the stirring is completed, the mixed raw materials are introduced into the forming cylinder for solidification and forming. In this process, the mixed raw materials in the foaming machine are connected with the flow pipe between the mixed raw materials and the forming cylinder. After the hot mixed raw materials contact the flow pipe, the temperature of the mixed raw materials will be reduced, which will result in low temperature of the mixed raw materials entering the forming cylinder, poor flowability of the raw materials, and influence on the formation and uniform distribution of bubbles. In addition, part of the mixed raw materials will be left in the flow pipe, increasing the chance of adhesion and affecting the next use. SUMMARY

[0006] The present application aims to provide a production process of silica gel slow-rebound memory sponge to solve the problems in the background art.

[0007] To achieve the above-mentioned purpose, the present application provides a production process of silica gel slow-rebound memory sponge, which comprises the following steps:

[0008] S1, a plurality of raw materials are added to the mixing cavity through the feeding port on the foaming machine, and heated by the heater, and the booster pressurizes the mixing cavity;

[0009] S2, the raw materials are stirred in the mixing cavity by the stirring device, so that the raw materials can be uniformly mixed, and after the mixing is completed, the mixed raw materials are introduced into the forming cylinder through the material guide pipe to be molded and solidified;

[0010] S3, before the mixed raw materials are introduced into the forming cylinder, hot water in the water storage cavity is used to transport into the water storage sleeve, and the hot water preheats the material guide pipe, so that the raw materials are uniformly heated and introduced into the forming cylinder to be molded and solidified;

[0011] Wherein, the foaming machine is communicated with the forming cylinder through the material guide pipe, the mixing cavity is formed in the foaming machine, the water storage cavity is provided outside the heater, the water storage sleeve is communicated with the bottom of the water storage cavity and sleeved outside the material guide pipe, the material guide pipe is provided with a material separation plate at the connection position of the foaming machine, the water storage cavity is symmetrically formed with a cavity communicated with the outside environment, the cavity is communicated with the mixing cavity, the material separation plate is used to release the air in the cavity during material guiding, the reciprocating mechanism is arranged in the cavity to press the hot water in the water storage cavity into the water storage sleeve, and the mixed raw materials in the water storage sleeve are preheated by the material guide pipe before the mixed raw materials enter the material guide pipe. The bottom of the material guide pipe is provided with a valve mechanism, and the mixed raw materials in the forming cylinder are used as power to drive the valve mechanism to move upward, so that the mixed raw materials remaining in the water storage sleeve are discharged, so as to reduce the adhesion of the mixed raw materials on the inner wall of the water storage sleeve.

[0012] As a further improvement of the technical solution, the cavity is surrounded by two vertical plates fixedly connected with the inner wall of the water storage cavity, a through hole communicated with the cavity is formed in the foaming machine at the bottom of the cavity, the other end of the through hole is communicated with the outside environment, and the baffle is outwardly extended on both sides of the material separation plate. The baffle is used to block the through hole in the normal state to limit the overflow of air in the cavity.

[0013] As a further improvement of the technical solution, the cavity is communicated with the air guide pipe at the bottom, and the other end of the air guide pipe is communicated with the mixing cavity. When the booster pressurizes the inside of the foaming machine, the air pressurized into the mixing cavity is introduced into the cavity through the air guide pipe to provide power for the upward movement of the reciprocating mechanism.

[0014] As a further improvement of the technical solution, the reciprocating mechanism comprises a reciprocating plate sleeved with the inner wall of the water storage cavity, and a movable block fixedly connected with the bottom of the reciprocating plate. The movable block is located in the cavity and is sleeved with the cavity. When the reciprocating plate moves downward, the weight of the reciprocating plate pressurizes the hot water in the water storage cavity into the water storage sleeve, so as to preheat the material guide pipe.

[0015] The foaming machine is provided with a water draining cavity in the bottom of the water storage cavity, the upper and lower water draining cavities are trapezoidal, a partition plate for limiting the flow of hot water is arranged between the upper and lower water draining cavities, and the upper and lower surfaces of the partition plate are elastically connected with the water draining cavities through extension springs, and in normal state, the partition plate overcomes the gravity of the hot water above and limits the overflow of the hot water.

[0016] As a further improvement of the technical solution, the bottom of the lower water draining cavity is communicated with a water guide pipe penetrating the water storage sleeve and the material guide pipe, the material guide pipe and the water storage sleeve form a hot water cavity, the bottom of the water guide pipe extends into the hot water cavity, the water storage sleeve is provided with a gas guide hole communicated with the hot water cavity, and when water is supplied into the hot water cavity, the reciprocating plate presses the hot water in the water storage cavity by using its own gravity, the hot water pushes the partition plate to move downward to overcome the elastic potential energy of the extension spring, so that a gap is formed between the partition plate and the inner wall of the lower water draining cavity, and the hot water flows from the water storage cavity to the hot water cavity.

[0017] As a further improvement of the technical solution, a floating plate is sleeved in the forming cylinder, the floating plate is rotationally connected with a vertical rod, the vertical rod is supported by a support connecting the foaming machine and the forming cylinder, and the support is slidingly connected with the vertical rod.

[0018] As a further improvement of the technical solution, the inner walls of the two ends of the material guide pipe are arranged in an inclined shape, the inner walls of the material guide pipe are high at the two ends and low in the middle, and when the pumping of the mixed raw materials is stopped, the mixed raw materials are collected in the middle of the material guide pipe.

[0019] As a further improvement of the technical solution, the middle of the material guide pipe is provided with a material discharging pipe communicated with the inside of the material guide pipe, and the material discharging pipe penetrates the water storage sleeve.

[0020] As a further improvement of the technical solution, the valve mechanism comprises a valve rod movably arranged in the material discharging pipe, the valve rod is connected with the vertical rod through an elastic string, in normal state, the elastic string is in a loose state, a return spring is sleeved on the valve rod and abuts against the material discharging pipe, and the valve rod is provided with notches on the two symmetrical sides for the flow of the mixed raw materials.

[0021] Compared with the prior art, the present application has the following advantages:

[0022] 1. In the production process of the silica gel slow-rebound memory sponge, the gravity of the reciprocating plate pushes the hot water in the water storage cavity to push the partition plate downward, so that the hot water flows from the water storage cavity to the hot water cavity formed between the water storage sleeve and the material guide pipe for storage, the raw materials flow in the preheated material guide pipe are heated more uniformly, the product quality is improved, the internal pressure of the foaming machine is increased through the booster, the hot water in the hot water cavity is drawn back into the water storage cavity through the upward movement of the reciprocating plate, the hot water is recycled, the material guide pipe is preheated, the inner wall of the mixing cavity in the foaming machine is preheated, the temperature difference between the raw materials and the inner wall of the mixing cavity is reduced, the raw materials can reach the suitable reaction temperature more quickly after being added, the production cycle is shortened, and the energy consumption is reduced.

[0023] 2. In this silicone slow rebound memory foam production process, before material discharge, the top of the valve stem is in a state of blocking the discharge pipe. As the elastic rope moves upward, it gradually tightens and pulls the valve stem upward. During this process, the valve stem overcomes the elastic potential energy of the return spring and moves upward. When the notch moves to communicate with the inside of the guide pipe, the lower end of the notch is lower than the opening of the discharge pipe in the horizontal direction. At this time, the mixed raw materials in the guide pipe are discharged to the outside through the notch, thereby reducing the residue of mixed raw materials in the guide pipe and ensuring normal use next time. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is a front view of the internal structure of the foaming machine and molding cylinder of the present invention (cut section).

[0026] Figure 3 For the present invention Figure 2 Enlarged structural diagram at point A in the diagram;

[0027] Figure 4 This is a cross-sectional schematic diagram of the internal structure of the foaming machine of the present invention;

[0028] Figure 5 This is a top view of the internal structure of the foaming machine of the present invention (cut section).

[0029] Figure 6 This is a cross-sectional schematic diagram of the internal structure of the feed tube of the present invention;

[0030] Figure 7 For the present invention Figure 6 Enlarged structural diagram at point B in the diagram;

[0031] Figure 8 Left view of the internal structure of the feed tube and water storage sleeve of the present invention (cut section);

[0032] Figure 9 This is an exploded structural diagram of the molding cylinder and valve mechanism of the present invention.

[0033] The meanings of the labels in the diagram are as follows:

[0034] 100. Foaming machine; 101. Heater; 102. Water storage chamber; 103. Material separator; 104. Baffle; 105. Through hole; 106. Air guide pipe; 107. Drainage chamber; 108. Tension spring; 109. Partition; 110. Molding cylinder; 111. Intensifier;

[0035] 120. Feed pipe;

[0036] 130, water storage sleeve; 131, water guide pipe; 132, air guide hole;

[0037] 140, reciprocating mechanism; 141, reciprocating plate; 142, movable block; 143, vertical plate;

[0038] 150, valve mechanism; 151, valve rod; 152, notch; 153, elastic rope; 154, reset spring;

[0039] 160, floating plate; 161, vertical rod. DETAILED DESCRIPTION

[0040] The technical solutions in the present application will be described clearly and completely below in combination with the drawings in the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work belong to the scope of protection of the present application.

[0041] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0042] As shown in Figure 1 、 Figure 2 、 Figure 4 、 Figure 6 , a silica gel slow-rebound memory sponge production process is provided, comprising the following steps:

[0043] S1, a plurality of raw materials are added to the mixing cavity through the feeding port on the foaming machine 100, and the heater 101 is used for heating, and the booster 111 is used for pressing the mixing cavity;

[0044] S2, then, the raw materials are stirred in the mixing cavity by using the stirring device, so that the raw materials can be uniformly mixed, and after the mixing is finished, the mixed raw materials are introduced into the forming cylinder 110 through the material guide pipe 120 to be solidified;

[0045] S3, before the mixed raw materials are introduced into the forming cylinder 110, the heated hot water in the water storage cavity 102 is used to transport into the water storage sleeve 130, and the hot water preheats the material guide pipe 120, so that the raw materials are uniformly heated and introduced into the forming cylinder 110 to be solidified;

[0046] Among them, the foaming machine 100 and the molding cylinder 110 are connected by a guide pipe 120. A mixing chamber is formed inside the foaming machine 100. In order to improve the foaming speed and production efficiency, a corresponding stirring device (which belongs to the prior art and can be known by those skilled in the art, so it is not shown in the figure) can be set in the mixing chamber to stir the added raw materials. The heater 101 has a water storage chamber 102 outside, and the bottom of the water storage chamber 102 is connected to a water storage sleeve 130 sleeved outside the guide pipe 120.

[0047] A baffle plate 103 is provided at the connection between the foaming machine 100 and the feed pipe 120. The water storage chamber 102 has symmetrical cavities that communicate with the external environment. The cavities are connected to the mixing chamber. The baffle plate 103 is used to release the air in the cavity during feeding. A reciprocating mechanism 140 is provided inside the cavity to press the hot water in the water storage chamber 102 into the water storage sleeve 130. Before the mixed raw materials enter the feed pipe 120, the hot water enters the water storage sleeve 130 in advance to preheat the feed pipe 120. When the mixed raw materials are conveyed to the molding cylinder 110, a valve mechanism 150 is provided at the bottom of the feed pipe 120. The mixed raw materials in the molding cylinder 110 are used as power to push the valve mechanism 150 to move upward, so that the mixed raw materials remaining in the water storage sleeve 130 are discharged, thereby reducing the adhesion of the mixed raw materials on the inner wall of the water storage sleeve 130.

[0048] First, in the production of this memory foam, various raw materials are added into the foaming machine 100 through the feeding port. Then, the raw materials are stirred using a stirring device. At the same time, the heater 101 provides heat to the raw materials, softening the foaming agent and improving production efficiency. After stirring is completed, the partition plate 103 is retracted (e.g., Figure 4 (As indicated by the arrow) the air inside the cavity is released; therefore, based on the above structure and combined with Figure 5 As shown, the cavity is enclosed by two vertical plates 143 fixedly connected to the inner wall of the water storage chamber 102. A through hole 105 communicating with the cavity is provided inside the foaming machine 100 at the bottom of the cavity. The other end of the through hole 105 communicates with the external environment. Baffles 104 extend outward from both sides of the partition plate 103. Under normal conditions, the baffles 104 are used to block the through hole 105 to limit the leakage of air from the cavity. On the other hand, an air guide pipe 106 is connected to the bottom of the cavity. The other end of the air guide pipe 106 communicates with the mixing chamber. When the booster 111 pressurizes the inside of the foaming machine 100, the air pressed into the mixing chamber is introduced into the cavity through the air guide pipe 106, providing power to drive the reciprocating mechanism 140 to move upward.

[0049] That is to say, in the process of the stirring device working, the heater 101 is powered on to heat the raw materials, and the booster 111 is operated to pressurize the mixing chamber through the air pipe, and the pressure inside the mixing chamber is observed through the pressure gauge. If the pressure inside the foaming machine 100 is too large, the pressure relief valve (prior art, not described here) on the foaming machine 100 is opened, and the gas inside the foaming machine 100 is discharged from the pressure relief valve. After the stirring is finished, the partition plate 103 is pulled outwards, wherein the partition plate 103 can be pulled manually or driven by electricity, and the baffle 104 is first separated from the blockage of the through hole 105. At this time, the air in the cavity is pressed into the external environment through the through hole 105 under the gravity of the reciprocating mechanism 140, and the height of the reciprocating mechanism 140 is lowered.

[0050] Secondly, before water is supplied into the water storage sleeve 130, the structure of the reciprocating mechanism 140 needs to be disclosed. The reciprocating mechanism 140 includes a reciprocating plate 141 which is sleeved with the inner wall of the water storage cavity 102, and a movable block 142 which is fixedly connected to the bottom of the reciprocating plate 141 and is sleeved with the cavity. When the reciprocating plate 141 moves downwards, the hot water in the water storage cavity 102 is pressed into the water storage sleeve 130 by the gravity of the reciprocating plate 141, realizing the preheating of the guide pipe 120.

[0051] It should be noted that after the stirring is finished, the hot water in the water storage cavity 102 is first pressed into the water storage sleeve 130, and then as the distance of the partition plate 103 moving outwards increases, the partition plate 103 gradually changes from the shielding state to the release state, that is, the partition plate 103 opens the square hole (refer to Figure 5 ) of the foaming machine 100 which is connected with the guide pipe 120, and the raw materials in the foaming machine 100 are introduced into the guide pipe 120.

[0052] Next is the specific process of supplying water into the water storage sleeve 130. As shown in Figure 3 and Figure 6 , the foaming machine 100 is provided with a water storage cavity 107 at the bottom of the water storage cavity 102, and the upper and lower water storage cavities 107 are in the shape of a trapezoid. A partition plate 109 for limiting the flow of hot water is arranged between the upper and lower water storage cavities 107, and the upper and lower surfaces of the partition plate 109 are elastically connected with the stretch springs 108 in the water storage cavities 107. Under normal circumstances, the partition plate 109 overcomes the gravity of the hot water above and limits the overflow of the hot water.

[0053] The bottom of the lower hydrophobic cavity 107 is communicated with a water guide pipe 131 which penetrates the water storage sleeve pipe 130 and the material guide pipe 120, and a hot water cavity is formed between the material guide pipe 120 and the water storage sleeve pipe 130, the bottom of the water guide pipe 131 extends into the hot water cavity, and the water storage sleeve pipe 130 is provided with a gas guide hole 132 which is communicated with the hot water cavity, when water is supplied into the hot water cavity, the reciprocating plate 141 exerts pressure on the hot water in the water storage cavity 102 by using its own gravity, the hot water pushes the partition plate 109 to move downward against the elastic potential energy of the tension spring 108, so that the partition plate 109 leaves a gap with the inner wall of the lower hydrophobic cavity 107, and the hot water flows from the water storage cavity 102 to the hot water cavity.

[0054] Working principle: when Figure 4 the reciprocating plate 141 in the water storage cavity 102 is released, the originally balanced partition plate 109 is broken, at this time, the hot water in the water storage cavity 102 pushes the partition plate 109 out downward by using the gravity of the reciprocating plate 141, so that the hot water flows from the water storage cavity 102 to the hot water cavity formed between the water storage sleeve pipe 130 and the material guide pipe 120 for storage, and when the raw material flows in the preheated material guide pipe 120, the raw material is heated more uniformly, and the performance difference of the raw material caused by uneven temperature is avoided. This helps to ensure the uniformity and stability of the final product and improves the product quality.

[0055] In order to guide the raw material in the foaming machine 100 into the forming cylinder 110 through the material guide pipe 120, a pump body (which pumps the raw material in the foaming machine 100 into the forming cylinder 110 by sucking the raw material, not shown in the figure) can be arranged on the material guide pipe 120 below the connection between the foaming machine 100 and the material guide pipe 120, and the raw material in the foaming machine 100 is transported into the forming cylinder 110 through the pump body.

[0056] As the water level in the hot water cavity gradually rises, the air in the hot water cavity is discharged from the gas guide hole 132, and Figure 5 before the square hole of the foaming machine 100 is realized to be communicated, the hot water fills the entire hot water cavity to surround the material guide pipe 120.

[0057] Further, as the mixed raw material is continuously pumped into the forming cylinder 110, the volume of the mixed raw material in the forming cylinder 110 increases, and the forming cylinder 110 is sleeved with a floating plate 160, the floating plate 160 is rotationally connected with a vertical rod 161, the vertical rod 161 is supported by a bracket which connects the foaming machine 100 and the forming cylinder 110, and the bracket is slidingly connected with the vertical rod 161, therefore, when the mixed raw material in the forming cylinder 110 rises, the raw material also pushes the floating plate 160 to move upward, after the floating plate 160 rises to the top end of the forming cylinder 110, the mixed memory sponge in the forming cylinder 110 is solidified, and the mixed memory sponge in the forming cylinder 110 can be taken out by rotating the floating plate 160 (refer to Figure 9 ).

[0058] In addition, considering that when the pumping of the mixed raw materials into the forming cylinder 110 is stopped, the mixed raw materials that have not been formed and solidified will remain in the guide pipe 120, the inner wall of the guide pipe 120 is provided in an inclined shape, and the inner wall of the guide pipe 120 is high at both ends and low in the middle, so that when the pumping of the mixed raw materials is stopped, the mixed raw materials are collected in the middle of the guide pipe 120.

[0059] In order to avoid the backflow of the mixed raw materials pumped into the forming cylinder 110, corresponding mechanisms in the hydrophobic cavity 107 can also be provided at the connection between the forming cylinder 110 and the guide pipe 120 to limit the mixed raw materials.

[0060] At the same time, in the process of lifting the vertical rod 161, the vertical rod 161 also pulls the valve mechanism 150 to move upward, so that the valve mechanism 150 discharges the mixed raw materials collected in the middle of the guide pipe 120. The process of discharging the mixed raw materials in the guide pipe 120 is shown in Figure 6 、 Figure 7 and Figure 8 .

[0061] Among them, the middle of the guide pipe 120 has a discharge pipe communicating with the inside, the discharge pipe penetrates the water storage sleeve pipe 130, then the valve mechanism 150 includes a valve rod 151 movably arranged in the discharge pipe, the valve rod 151 is connected with the vertical rod 161 through an elastic string 153, in the normal state, the elastic string 153 is in a loose state, the valve rod 151 is sleeved with a reset spring 154 abutting against the discharge pipe, and the valve rod 151 has a gap 152 on the symmetrical two sides for the mixed raw materials to flow through.

[0062] Specific working process: when the discharge has not been completed, the top end of the valve rod 151 is in a state of blocking the discharge pipe, when the elastic string 153 moves upward, the elastic string 153 is gradually tightened and pulls the valve rod 151 to move upward, in this process, the valve rod 151 moves upward against the elastic potential energy of the reset spring 154, when the gap 152 moves to communicate with the inside of the guide pipe 120, the lower end of the gap 152 is lower than the pipe opening of the discharge pipe in the horizontal direction, at this time, the mixed raw materials in the guide pipe 120 are discharged to the outside from the gap 152, thereby reducing the residue of the mixed raw materials in the guide pipe 120 and ensuring the normal use next time, then through recycling and utilization, waste is prevented.

[0063] Returning to Figure 1 、 Figure 3 、 Figure 4 and Figure 5When the raw materials are added into the foaming machine 100 again, the inside of the foaming machine 100 is pressurized by the booster 111, the air pushes the movable block 142 to move upward, the hot water in the hot water cavity is pumped back into the water storage cavity 102 by the reverse upward movement of the reciprocating plate 141, the hot water is recycled, the material guide pipe 120 can be preheated, the inner wall of the mixing cavity in the foaming machine 100 can be preheated, the temperature difference between the raw materials and the inner wall of the mixing cavity can be reduced by preheating the inner wall of the mixing cavity, the raw materials can reach the appropriate reaction temperature faster after being added, the production cycle is shortened, and the energy consumption is reduced.

[0064] The basic principles, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, the above examples and descriptions in the specification are only preferred examples of the present application, and are not used to limit the present application, various changes and improvements of the present application can be made without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A manufacturing process for silicone slow-rebound memory foam, characterized in that: Includes the following steps: S1. Add various raw materials into the mixing chamber through the feeding port on the foaming machine, heat them with a heater, and pressurize the mixing chamber with a booster. S2. Use a stirring device to stir the raw materials in the mixing chamber so that the raw materials can be mixed evenly. After the mixing is completed, the mixed raw materials are introduced into the molding cylinder through the guide pipe to solidify. S3. Before the mixed raw materials are introduced into the molding cylinder, the heated hot water in the water storage chamber is used to transport the materials into the water storage sleeve. The hot water preheats the material guide pipe so that the raw materials are heated evenly and introduced into the molding cylinder to solidify. The foaming machine is connected to the molding cylinder by a guide pipe. A mixing chamber is formed inside the foaming machine. A water storage chamber is located outside the heater. A water storage sleeve is connected to the bottom of the water storage chamber and is fitted outside the guide pipe. A baffle plate is set at the connection between the foaming machine and the guide pipe. A cavity communicating with the external environment is symmetrically formed inside the water storage chamber. The cavity is connected to the mixing chamber. The baffle plate is used to release the air in the cavity during material feeding. A reciprocating mechanism is set inside the cavity to press the hot water in the water storage chamber into the water storage sleeve. Before the mixed raw materials enter the guide pipe, the hot water enters the water storage sleeve in advance to preheat the guide pipe. A valve mechanism is set at the bottom of the guide pipe. The mixed raw materials in the molding cylinder are used as power to push the valve mechanism to move upward, so that the mixed raw materials remaining in the water storage sleeve are discharged, thereby reducing the adhesion of the mixed raw materials on the inner wall of the water storage sleeve. The reciprocating mechanism includes a reciprocating plate that is sleeved with the inner wall of the water storage chamber, and a movable block that is fixedly connected to the bottom of the reciprocating plate. The movable block is located in the cavity and sleeved with the cavity. When the reciprocating plate moves downward, the gravity of the reciprocating plate is used to press the hot water in the water storage chamber into the water storage sleeve to achieve preheating of the feed pipe. A drainage chamber is provided in the foaming machine at the bottom of the water storage chamber. The upper and lower drainage chambers are trapezoidal in shape. A baffle is provided between the upper and lower drainage chambers to restrict the flow of hot water. The upper and lower surfaces of the baffle are elastically connected to the drainage chamber with tension springs. Under normal conditions, the baffle overcomes the gravity of the hot water above and restricts the overflow of hot water. The bottom of the lower drainage chamber is connected to a water guide pipe that passes through the water storage sleeve and the material guide pipe. A hot water chamber is formed between the material guide pipe and the water storage sleeve. The bottom of the water guide pipe extends into the hot water chamber. The water storage sleeve is provided with a vent hole that communicates with the hot water chamber. When water is supplied to the hot water chamber, the reciprocating plate uses its own weight to pressurize the hot water in the water storage chamber. The hot water pushes the baffle to move downward against the elastic potential energy of the tension spring, so that a gap is created between the baffle and the inner wall of the lower drainage chamber, allowing hot water to flow from the water storage chamber to the hot water chamber. A float plate is fitted inside the molding cylinder. The float plate is rotatably connected to a vertical rod. The vertical rod is supported by a bracket that connects the foaming machine and the molding cylinder. The bracket and the vertical rod are slidably connected.

2. The silicone slow rebound memory foam production process according to claim 1, characterized in that: The cavity is formed by two vertical plates that are fixedly connected to the inner wall of the water storage cavity. The foaming machine at the bottom of the cavity has a through hole that communicates with the cavity. The other end of the through hole is connected to the external environment. The baffles extend outward from both sides of the baffle plate. Under normal conditions, the baffles are used to block the through hole to limit the air from escaping from the cavity.

3. The silicone slow rebound memory foam production process according to claim 2, characterized in that: The bottom of the cavity is connected to an air guide pipe, and the other end of the air guide pipe is connected to the mixing chamber. When the booster pressurizes the inside of the foaming machine, the air pressurized into the mixing chamber is introduced into the cavity through the air guide pipe to provide power for the reciprocating mechanism to move upward.

4. The silicone slow rebound memory foam production process according to claim 1, characterized in that: The inner walls of the feed tube are inclined at both ends, with the inner walls of the feed tube being high at both ends and low in the middle. When the pumping of the mixed raw materials stops, the mixed raw materials are collected in the middle of the feed tube.

5. The silicone slow rebound memory foam production process according to claim 4, characterized in that: The feed pipe has a discharge pipe in the middle that is connected to its interior, and the discharge pipe passes through the water storage sleeve.

6. The silicone slow rebound memory foam production process according to claim 5, characterized in that: The valve mechanism includes a valve stem that is movably installed inside the discharge pipe. An elastic rope is connected between the valve stem and the upright. Under normal conditions, the elastic rope is in a loose state. A return spring is fitted on the valve stem that abuts against the discharge pipe. The valve stem has notches on both sides symmetrically for the mixed raw materials to flow through.

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