Thermal insulation material foaming device with protective structure and foaming method thereof

Abstract

The invention discloses a thermal insulation material foaming device with a protection structure and a foaming method thereof, and relates to the technical field of thermal insulation material foaming, the thermal insulation material foaming device comprises a foaming cylinder and further comprises a protection device, a feeding pipe is fixedly installed at the top of the foaming cylinder, and a discharging pipe is fixedly installed on the circumferential surface of the foaming cylinder; a driving motor is fixedly installed at the top of the foaming cylinder, a pressurizing pipe is fixedly installed at the top of the foaming cylinder, the protection device comprises a rotating rod, a sliding rod, an extrusion rod, a placing block, a placing plate, a placing rod, a hollow block, a shielding plate, a placing cylinder, a bearing hole and a linkage block, and the shielding plate reciprocates so as to achieve the effect of controlling feeding. The foaming reaction is too violent due to continuous feeding, the pressure and temperature change of the foaming cylinder can be reduced by controlling the feeding speed, the abrasion and fault risks of the foaming cylinder are reduced, and therefore the service life of the foaming cylinder is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of thermal insulation material foaming, in particular to a thermal insulation material foaming device with a protective structure and a foaming method thereof. Background Art

[0002] The foaming device usually consists of a foaming cylinder, a stirring device, a discharge pipe, a pressure pipe and a control system.

[0003] The patent with patent announcement number CN221022039U relates to a heat-insulating material foaming device with a protective structure, including a foaming tank, a protective cover is provided on the outside of the foaming tank, a support frame is provided at the bottom of the outside of the protective cover, an annular air duct is provided at the bottom of the outside of the protective cover, an annular air outlet is provided at the top of the annular air duct, a fixing mechanism is provided between the annular air duct and the protective cover, a plurality of air supply pipes are equidistantly provided at the bottom of the annular air duct, a connecting pipe is fixedly installed at the bottom of the support frame, a plurality of connecting ports are provided on the outside of the connecting pipe, the end of the air supply pipe is connected to the connecting port, a brushless motor is connected directly below the connecting pipe, and an air inlet is connected directly below the brushless motor; the provided protective device can serve as a warning to prevent people from getting burned by approaching, and can also cool the protective cover to facilitate subsequent operations by the staff.

[0004] In the above patent, the protective device can serve as a warning to prevent people from getting close and getting burned, and can also cool the protective cover to facilitate subsequent operations by the staff. However, it is difficult to prevent the foaming reaction from being too intense due to excessive feeding. Excessive feeding speed will cause excessive reaction of the foaming agent, increase the pressure and temperature of the foaming cylinder, and cause equipment damage or failure. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the present invention provides a thermal insulation material foaming device with a protective structure and a foaming method thereof, which solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a heat-insulating material foaming device with a protective structure, comprising a foaming cylinder and a protective device, wherein a feed pipe is fixedly installed on the top of the foaming cylinder, a discharge pipe is fixedly installed on the circumferential surface of the foaming cylinder, a drive motor is fixedly installed on the top of the foaming cylinder, and a pressurizing pipe is fixedly installed on the top of the foaming cylinder, wherein the protective device comprises a rotating rod, a sliding rod, an extrusion rod, a placement block, a placement plate, a placement rod, a hollow block, a shielding plate, a placement cylinder, a load-bearing hole and a linkage block, the hollow block moves in a direction away from the placement plate to drive the shielding plate to move, and the shielding plate moves to release the obstruction to the feed pipe. The baffle plate moves back and forth in this way to achieve the effect of controlling the feeding. Continuous feeding will cause the foaming reaction to be too intense. The rotating rod is fixedly installed on the output end of the driving motor, the sliding rod is slidably installed on the circumferential surface of the rotating rod, the extrusion rod is fixedly installed on the circumferential surface of the sliding rod, the placement block is fixedly installed on the bottom of the inner wall of the foaming cylinder, the placement plate is fixedly installed on the top of the inner wall of the foaming cylinder, the placement rod is fixed through the left and right walls of the placement plate, the hollow block is slidably installed on the circumferential surface of the placement rod, the baffle plate is fixedly installed on the top of the hollow block, the placement cylinder is fixedly installed on the circumferential surface of the sliding rod, the load-bearing hole is opened on the circumferential surface of the sliding rod, and the linkage block is fixedly installed on the inner wall of the load-bearing hole.

[0007] According to the above technical solution, a No. 1 spring is provided between the placement cylinder and the rotating rod, and the No. 1 spring can drive the placement cylinder to reset. The end of the hollow block away from the placement plate is set as an inclined surface, and the end of the placement block away from the bottom of the inner wall of the foaming cylinder is set as an inclined surface.

[0008] According to the above technical solution, a No. 2 spring is provided between the hollow block and the placement rod, and the No. 2 spring can drive the hollow block to reset, the baffle is in contact with the feed pipe, and the hollow block is in contact with the placement cylinder.

[0009] According to the above technical solution, the circumferential surface of the rotating rod is provided with a turning device to prevent the material from being stratified, and a scraping device is provided inside the discharge pipe. The turning device includes a load-bearing plate, a load-bearing rod, a stirring rod, an arc panel, an auxiliary rod and a U-shaped rod. The stirring rod moves upward to drive the arc panel to move upward, and the arc panel moves upward to turn the material inside the foaming cylinder to improve the foaming quality. The load-bearing plate is fixedly installed on the circumferential surface of the rotating rod, the load-bearing rod is fixed through the upper and lower walls of the load-bearing plate, the stirring rod is slidably installed on the circumferential surface of the load-bearing rod, the arc panel is fixedly installed on the surface of the stirring rod, the auxiliary rod is fixedly installed on the end of the stirring rod away from the rotating rod, and the U-shaped rod is fixed through the side of the auxiliary rod away from the inner wall of the foaming cylinder.

[0010] According to the above technical solution, a No. 3 spring is arranged between the load-bearing rod and the stirring rod, and the No. 3 spring can drive the stirring rod to reset. The stirring rod is in contact with the top of the linkage block, and the auxiliary rod is in contact with the inner wall of the foaming tube. The connection strength between the auxiliary rod and the stirring rod can be enhanced by the U-shaped rod.

[0011] According to the above technical solution, a linkage ring is fixedly installed on one side of the auxiliary rod close to the slide rod, the linkage ring is in contact with the inner wall of the foaming tube, and the linkage ring is in contact with the discharge pipe.

[0012] According to the above technical solution, the scraping device includes a support plate, a support rod, a movable frame, a fixed rod, a scraping ring and a fixed block. The movement of the fixed rod drives the scraping ring to move, and the movement of the scraping ring scrapes the inner wall of the discharge pipe. The support plate is fixedly installed on the inner wall of the discharge pipe, and the support rod slides through the left and right walls of the support plate. The movable frame is fixedly installed at both ends of the support rod, and the fixed rod is fixedly installed on the side of the movable frame away from the sliding rod. The scraping ring is fixedly installed on the end of the fixed rod away from the sliding rod, and the fixed block is fixedly installed on the inner wall of the movable frame.

[0013] According to the above technical solution, a No. 4 spring is arranged between the support plate and the support rod, and the No. 4 spring can drive the support rod to reset. The scraper ring contacts the inner wall of the discharge pipe, and the end of the movable frame close to the linkage ring is set as a slope.

[0014] A foaming method for a heat-insulating material foaming device with a protective structure, using the above-mentioned heat-insulating material foaming device with a protective structure, comprises the following steps: Step 1: The raw material to be foamed is fed into the foaming cylinder through the feeding pipe. At the same time, the motor is driven to rotate the rotating rod counterclockwise. The rotation of the rotating rod drives the sliding rod to rotate. The rotation of the sliding rod drives the extrusion rod to rotate. The extrusion rod rotates and contacts the inclined surface of the placement block and squeezes the placement block. The extrusion rod is moved upward by the reaction force of the extrusion block. Step 2: The extrusion rod moves upward, driving the slide rod to move upward, and the slide rod moves upward, driving the placement cylinder to move upward, and the placement cylinder moves upward to contact the inclined surface of the hollow block and squeeze the hollow block. The hollow block is squeezed by the placement cylinder and moves toward the placement plate. The movement of the hollow block toward the placement plate drives the shielding plate to move to shield the bottom of the feed pipe; Step 3: After the slide bar continues to rotate counterclockwise and drives the extrusion bar to continue to rotate and break away from the placement block, the placement cylinder drives the slide bar to move downward and reset under the elastic force of the No. 1 spring. The placement cylinder moves downward and resets to break away from the hollow block. After the hollow block breaks away from the placement cylinder, it moves away from the placement plate under the elastic force of the No. 2 spring. Step 4: The hollow block moves away from the placement plate, driving the shielding plate to move. The shielding plate moves to remove the obstruction to the feed pipe. At the same time, gas foaming agent is injected into the foaming tube through the pressure pipe and pressurized. After the foaming process is completed, the foam is solidified by cooling to form a stable foaming material.

[0015] The present invention provides a thermal insulation material foaming device with a protective structure. It has the following beneficial effects: (1) This invention achieves the effect of controlling the feeding by reciprocating the shielding plate. Continuous feeding will lead to excessive foaming reaction. Controlling the feeding helps to better control the reaction process, reduce safety risks and protect the foaming tube. By controlling the feeding speed, the pressure and temperature changes of the foaming tube can be reduced, and the risk of wear and failure of the foaming tube can be reduced, thereby extending the service life of the foaming tube. In addition, a stable feeding speed helps to maintain uniform mixing of the materials, ensures uniform distribution of bubbles during the foaming process, and thus improves the overall quality of the foam.

[0016] (2) In this invention, the arc panel moves upwards by moving the stirring rod upwards, and the arc panel moves upwards to turn over the material inside the foaming tube, thereby improving the foaming quality. Turning over the material helps to evenly distribute the material, ensuring that the bubbles in the foaming process are more evenly distributed, thereby further improving the foam quality. The stirring rod moves up and down and drives the auxiliary rod to move up and down. The auxiliary rod and the arc panel move up and down and rotate at the same time to stir the material at different depths inside the foaming tube. By stirring at different depths, the bubbles are effectively dispersed, preventing the bubbles from being excessively concentrated or bursting, thereby improving the structural strength and performance of the foam.

[0017] (3) This invention moves the moving frame away from the sliding rod to drive the fixed rod to move, and the movement of the fixed rod drives the scraper ring to move, and the movement of the scraper ring scrapes the inner wall of the discharge pipe. The movement of the scraper ring can effectively remove the material residue on the inner wall of the discharge pipe, preventing these residues from accumulating and causing blockage, thereby ensuring smooth material flow. At the same time, the moving frame moves away from the sliding rod to drive the fixed block to move, and the movement of the fixed block hits the support plate to generate vibration. The vibration of the support plate drives the discharge pipe to resonate together. The vibration of the support plate drives the discharge pipe to resonate together, so that the adhesion of the material to the inner wall of the discharge pipe is reduced, reducing the risk of material blockage, thereby further ensuring smooth material flow and discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the foam tube of the present invention; Figure 3 For the present invention Figure 2 A schematic diagram of the structure of part A in the middle; Figure 4This is a schematic diagram of the position structure of the foaming tube and the feeding pipe of the present invention; Figure 5 For the present invention Figure 3 A magnified schematic diagram of the structure of part B; Figure 6 For the present invention Figure 3 A magnified schematic diagram of the structure of part C in the middle; Figure 7 This is a schematic diagram of the position structure of the shielding plate and the hollow block of the present invention; Figure 8 This is a schematic diagram of the position structure of the fixed rod and the scraper ring of the present invention.

[0019] In the figure: 1. Foaming tube; 2. Feed pipe; 3. Discharge pipe; 4. Drive motor; 5. Rotating rod; 6. Sliding rod; 7. Extrusion rod; 8. Placement block; 9. Placement plate; 10. Placement rod; 11. Hollow block; 12. Shielding plate; 13. Placement tube; 14. Load-bearing hole; 15. Linkage block; 161. Load-bearing plate; 162. Load-bearing rod; 163. Stirring rod; 164. Arc panel; 165. Auxiliary rod; 166. U-shaped rod; 167. Linkage ring; 171. Support plate; 172. Support rod; 173. Moving frame; 174. Fixed rod; 175. Scraper ring; 176. Fixed block. DETAILED DESCRIPTION

[0020] The following will provide a clear and complete description of 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. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0021] See also Figures 1-8, one embodiment of the present invention is: a heat insulation material foaming device with a protective structure, including a foaming tube 1, and also including a protective device, wherein a feed pipe 2 is fixedly installed on the top of the foaming tube 1, a discharge pipe 3 is fixedly installed on the circumferential surface of the foaming tube 1, a drive motor 4 is fixedly installed on the top of the foaming tube 1, and a pressure tube is fixedly installed on the top of the foaming tube 1, wherein the protective device includes a rotating rod 5, a sliding rod 6, an extrusion rod 7, a placement block 8, a placement plate 9, a placement rod 10, a hollow block 11, a shielding plate 12, a placement tube 13, a load-bearing hole 14 and a linkage block 15, the rotating rod 5 is fixedly installed on the output end of the drive motor 4, the sliding rod 6 is slidably installed on the circumferential surface of the rotating rod 5, the extrusion rod 7 is fixedly installed on the circumferential surface of the sliding rod 6, the placement block 8 is fixedly installed It is installed at the bottom of the inner wall of the foaming cylinder 1, the placing plate 9 is fixedly installed on the top of the inner wall of the foaming cylinder 1, the placing rod 10 is fixed through the left and right walls of the placing plate 9, the hollow block 11 is slidably installed on the circumferential surface of the placing rod 10, the baffle 12 is fixedly installed on the top of the hollow block 11, the placing cylinder 13 is fixedly installed on the circumferential surface of the slide rod 6, the load-bearing hole 14 is opened on the circumferential surface of the slide rod 6, and the linkage block 15 is fixedly installed on the inner wall of the load-bearing hole 14. By controlling the feeding speed, the pressure and temperature changes of the foaming cylinder 1 can be reduced, and the risk of wear and failure of the foaming cylinder 1 can be reduced, thereby extending the service life of the foaming cylinder 1, and a stable feeding speed helps to maintain uniform mixing of the material and ensure uniform distribution of bubbles during the foaming process, thereby improving the overall quality of the foam.

[0022] A No. 1 spring is provided between the placement cylinder 13 and the rotating rod 5, which can drive the placement cylinder 13 to reset. The end of the hollow block 11 away from the placement plate 9 is set as a slope, and the end of the placement block 8 away from the bottom of the inner wall of the foaming cylinder 1 is set as a slope.

[0023] A No. 2 spring is provided between the hollow block 11 and the placement rod 10 , and the No. 2 spring can drive the hollow block 11 to reset, the baffle 12 contacts the feed pipe 2 , and the hollow block 11 contacts the placement cylinder 13 .

[0024] A foaming method for a heat-insulating material foaming device with a protective structure, using the above-mentioned heat-insulating material foaming device with a protective structure, comprises the following steps: Step 1: The raw material to be foamed is fed into the foaming cylinder 1 through the feeding pipe 2, and at the same time, the driving motor 4 drives the rotating rod 5 to rotate counterclockwise. The rotation of the rotating rod 5 drives the sliding rod 6 to rotate, and the rotation of the sliding rod 6 drives the extrusion rod 7 to rotate. The extrusion rod 7 rotates and contacts the inclined surface of the placement block 8 and squeezes the placement block 8. The extrusion rod 7 is moved upward by the reaction force of the extrusion of the placement block 8; Step 2: The extrusion rod 7 moves upward, driving the slide rod 6 to move upward, and the slide rod 6 moves upward, driving the placement cylinder 13 to move upward, and the placement cylinder 13 moves upward to contact the inclined surface of the hollow block 11 and squeeze the hollow block 11. The hollow block 11 is squeezed by the placement cylinder 13 and moves toward the placement plate 9. The hollow block 11 moves toward the placement plate 9 and drives the shielding plate 12 to move to shield the bottom of the feeding pipe 2; Step 3: After the slide bar 6 continues to rotate counterclockwise and drives the extrusion bar 7 to continue to rotate and break away from the placement block 8, the placement cylinder 13 drives the slide bar 6 to move downward and reset under the elastic force of the No. 1 spring. The placement cylinder 13 moves downward and resets to break away from the contact with the hollow block 11. After the hollow block 11 breaks away from the contact with the placement cylinder 13, it moves in the direction away from the placement plate 9 under the elastic force of the No. 2 spring. Step 4: The hollow block 11 moves away from the placement plate 9, driving the shielding plate 12 to move. The shielding plate 12 moves to remove the obstruction to the feed pipe 2. At the same time, the gas foaming agent is injected into the foaming tube 1 through the pressure pipe and pressurized. After the foaming process is completed, the foam is solidified by cooling to form a stable foaming material.

[0025] When this embodiment is working, the raw material to be foamed is put into the foaming cylinder 1 through the feeding pipe 2, and the driving motor 4 drives the rotating rod 5 to rotate counterclockwise, and the rotation of the rotating rod 5 drives the sliding rod 6 to rotate, and the rotation of the sliding rod 6 drives the extruding rod 7 to rotate, and the extruding rod 7 rotates to contact the inclined surface of the placement block 8 and squeeze the placement block 8. The extruding rod 7 is subjected to the reaction force of the extruded placement block 8 and moves upward. The extrusion rod 7 moves upward and drives the sliding rod 6 to move upward. The sliding rod 6 moves upward and drives the placement cylinder 13 to move upward. The placement cylinder 13 moves upward to squeeze the No. 1 spring. The No. 1 spring is squeezed by the placement cylinder 13 to produce deformation and store force. At the same time, the placement cylinder 13 moves upward and contacts the inclined surface of the hollow block 11 and squeezes the hollow block 11. The hollow block 11 is squeezed by the placement cylinder 13 to move in the direction close to the placement plate 9. The hollow block 11 moves in the direction close to the placement plate 9, driving the shielding plate 12 to move to the bottom of the feeding pipe 2 The second spring is pulled by the hollow block 11 to produce deformation and accumulate force. After the slide bar 6 continues to rotate counterclockwise and drives the extrusion rod 7 to continue to rotate out of contact with the placement block 8, the placement cylinder 13 drives the slide bar 6 to move downward and reset under the elastic force of the first spring. The placement cylinder 13 moves downward and resets out of contact with the hollow block 11. After the hollow block 11 is out of contact with the placement cylinder 13, it moves in the direction away from the placement plate 9 under the elastic force of the second spring. The hollow block 11 moves in the direction away from the placement plate 9 and drives the shielding plate 12 to move. The shielding plate 12 moves to remove the obstruction of the feeding pipe 2. The shielding plate 12 moves back and forth to achieve the effect of controlling the feeding. Continuous feeding will cause the foaming reaction to be too intense. Controlling the feeding helps to better control the reaction process and reduce safety risks to protect the foaming cylinder 1.

[0026] See also Figures 1-8 On the basis of the above embodiment, in another embodiment of the present invention, a turning device for preventing material stratification is provided on the circumferential surface of the rotating rod 5, and a scraping device is provided inside the discharge pipe 3. The turning device includes a load-bearing plate 161, a load-bearing rod 162, a stirring rod 163, an arc panel 164, an auxiliary rod 165 and a U-shaped rod 166. The load-bearing plate 161 is fixedly installed on the circumferential surface of the rotating rod 5, the load-bearing rod 162 is fixedly passed through the upper and lower walls of the load-bearing plate 161, the stirring rod 163 is slidably installed on the circumferential surface of the load-bearing rod 162, the arc panel 164 is fixedly installed on the surface of the stirring rod 163, the auxiliary rod 165 is fixedly installed on the end of the stirring rod 163 away from the rotating rod 5, and the U-shaped rod 166 is fixedly passed through the side of the auxiliary rod 165 away from the inner wall of the foaming tube 1. Turning the material helps to evenly distribute the material, ensuring that the bubbles in the foaming process are more evenly distributed, thereby further improving the foam quality.

[0027] A No. 3 spring is arranged between the load-bearing rod 162 and the stirring rod 163, and the No. 3 spring can drive the stirring rod 163 to reset. The stirring rod 163 contacts the top of the linkage block 15, and the auxiliary rod 165 contacts the inner wall of the foaming tube 1. The U-shaped rod 166 can enhance the connection strength between the auxiliary rod 165 and the stirring rod 163.

[0028] A linkage ring 167 is fixedly installed on one side of the auxiliary rod 165 close to the slide rod 6. The linkage ring 167 contacts the inner wall of the foaming tube 1 and the discharge pipe 3. Through stirring at different depths, the bubbles are effectively dispersed to prevent excessive concentration or rupture of the bubbles, thereby improving the structural strength and performance of the foam.

[0029] The scraping device includes a support plate 171, a support rod 172, a movable frame 173, a fixed rod 174, a scraper ring 175 and a fixed block 176. The support plate 171 is fixedly installed on the inner wall of the discharge pipe 3, the support rod 172 slides through the left and right walls of the support plate 171, the movable frame 173 is fixedly installed at both ends of the support rod 172, the fixed rod 174 is fixedly installed on the side of the movable frame 173 away from the slide rod 6, the scraper ring 175 is fixedly installed on the end of the fixed rod 174 away from the slide rod 6, and the fixed block 176 is fixedly installed on the inner wall of the movable frame 173. The movement of the scraper ring 175 can effectively remove the material residue on the inner wall of the discharge pipe 3 to prevent these residues from accumulating and causing blockage, thereby ensuring smooth material flow.

[0030] A No. 4 spring is provided between the support plate 171 and the support rod 172, and the No. 4 spring can drive the support rod 172 to reset, and the scraper ring 175 contacts the inner wall of the discharge pipe 3. The end of the movable frame 173 close to the linkage ring 167 is set as an inclined surface. The vibration of the support plate 171 drives the discharge pipe 3 to resonate together, so that the adhesion of the material to the inner wall of the discharge pipe 3 is reduced, reducing the risk of material blockage.

[0031] When this embodiment is working: the extrusion rod 7 moves upward to drive the slide rod 6 to move upward, the slide rod 6 moves upward to drive the linkage block 15 to move upward, the linkage block 15 moves upward to contact the stirring rod 163 and squeeze the stirring rod 163, the stirring rod 163 is squeezed upward by the linkage block 15, the stirring rod 163 moves upward to squeeze the No. 3 spring, the No. 3 spring is squeezed by the stirring rod 163 to produce deformation and accumulate force, and at the same time the stirring rod 163 moves upward to drive the arc panel 164 to move upward, the arc panel 164 moves upward to turn the material inside the foaming tube 1, thereby improving the foaming quality. When the cylinder 13 to be placed is driven by the elastic force of spring No. 1 to move the slide rod 6 downward and reset, the slide rod 6 moves downward and drives the linkage block 15 to move downward, and the linkage block 15 moves downward and breaks away from the contact with the stirring rod 163. After the stirring rod 163 breaks away from the contact with the linkage block 15, it moves downward under the elastic force of spring No. 3. The stirring rod 163 moves downward and drives the arc panel 164 to move downward and reset. At the same time, the stirring rod 163 moves back and forth up and down, driving the auxiliary rod 165 to move up and down. The auxiliary rod 165 and the arc panel 164 move up and down and rotate at the same time to stir the materials at different depths inside the foaming cylinder 1.

[0032] The stirring rod 163 moves upward, driving the auxiliary rod 165 to move upward. The auxiliary rod 165 moves upward, driving the linkage ring 167 to move upward. The linkage ring 167 moves upward and contacts the inclined surface of the moving frame 173 and squeezes the moving frame 173. The moving frame 173 is squeezed by the linkage ring 167 and moves in the direction away from the slide rod 6. The moving frame 173 moves in the direction away from the slide rod 6 and drives the support rod 172 to move. The support rod 172 moves to pull the No. 4 spring. The No. 4 spring is pulled by the support rod 172 to deform and store force. At the same time, the moving frame 173 moves in the direction away from the slide rod 6 and drives the fixed rod 174 to move. The fixed rod 174 moves and drives the scraper ring 175 to move. The scraper ring 175 moves to the discharge pipe 3 The inner wall is scraped, and at the same time, the moving frame 173 moves in the direction away from the slide bar 6, driving the fixed block 176 to move, and the fixed block 176 moves and hits the support plate 171 to generate vibration. The vibration of the support plate 171 drives the discharge pipe 3 to resonate together, and the stirring rod 163 moves downward to drive the auxiliary rod 165 to move downward, and the auxiliary rod 165 moves downward to drive the linkage ring 167 to move downward and reset. The linkage ring 167 moves downward and resets to break away from the contact with the moving frame 173, so that the support rod 172 moves in the direction close to the slide bar 6 under the elastic force of the No. 4 spring, and the support rod 172 moves in the direction close to the slide bar 6, driving the moving frame 173 and the fixed rod 174 to move and reset, and the fixed rod 174 moves and resets, driving the scraper ring 175 to move and reset.

[0033] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A heat-insulating material foaming device with a protective structure, comprising a foaming cylinder (1), characterized in that: Also includes protection devices; Wherein, a feed pipe (2) is fixedly mounted on the top of the foaming cylinder (1), a discharge pipe (3) is fixedly mounted on the circumferential surface of the foaming cylinder (1), a drive motor (4) is fixedly mounted on the top of the foaming cylinder (1), and a pressurizing pipe is fixedly mounted on the top of the foaming cylinder (1); The protective device comprises a rotating rod (5), a sliding rod (6), an extrusion rod (7), a placement block (8), a placement plate (9), a placement rod (10), a hollow block (11), a shielding plate (12), a placement cylinder (13), a bearing hole (14) and a linkage block (15), wherein the rotating rod (5) is fixedly mounted on the output end of the driving motor (4), the sliding rod (6) is slidably mounted on the circumferential surface of the rotating rod (5), the extrusion rod (7) is fixedly mounted on the circumferential surface of the sliding rod (6), and the placement block (8) is fixedly mounted on the foaming cylinder. (1) The bottom of the inner wall, the placement plate (9) is fixedly mounted on the top of the inner wall of the foaming tube (1), the placement rod (10) is fixedly passed through the left and right walls of the placement plate (9), the hollow block (11) is slidably mounted on the circumferential surface of the placement rod (10), the shielding plate (12) is fixedly mounted on the top of the hollow block (11), the placement tube (13) is fixedly mounted on the circumferential surface of the slide rod (6), the bearing hole (14) is opened on the circumferential surface of the slide rod (6), and the linkage block (15) is fixedly mounted on the inner wall of the bearing hole (14); The circumferential surface of the rotating rod (5) is provided with a material turning device for preventing material stratification, and the interior of the discharge pipe (3) is provided with a scraping device.

2. The thermal insulation material foaming device with a protective structure according to claim 1, characterized in that: A No. 1 spring is provided between the placement cylinder (13) and the rotating rod (5); the end of the hollow block (11) away from the placement plate (9) is provided as an inclined surface; and the end of the placement block (8) away from the bottom of the inner wall of the foaming cylinder (1) is provided as an inclined surface.

3. The thermal insulation material foaming device with a protective structure according to claim 2, characterized in that: A No. 2 spring is provided between the hollow block (11) and the placement rod (10), the shielding plate (12) is in contact with the feed pipe (2), and the hollow block (11) is in contact with the placement cylinder (13).

4. The thermal insulation material foaming device with a protective structure according to claim 3, characterized in that: The material turning device comprises a load-bearing plate (161), a load-bearing rod (162), a stirring rod (163), an arc panel (164), an auxiliary rod (165) and a U-shaped rod (166), wherein the load-bearing plate (161) is fixedly mounted on the circumferential surface of the rotating rod (5), the load-bearing rod (162) is fixedly passed through the upper and lower walls of the load-bearing plate (161), the stirring rod (163) is slidably mounted on the circumferential surface of the load-bearing rod (162), the arc panel (164) is fixedly mounted on the surface of the stirring rod (163), the auxiliary rod (165) is fixedly mounted on one end of the stirring rod (163) away from the rotating rod (5), and the U-shaped rod (166) is fixedly passed through the side of the auxiliary rod (165) away from the inner wall of the foaming tube (1).

5. The thermal insulation material foaming device with a protective structure according to claim 4, characterized in that: A No. 3 spring is provided between the load-bearing rod (162) and the stirring rod (163), the stirring rod (163) contacts the top of the linkage block (15), and the auxiliary rod (165) contacts the inner wall of the foaming tube (1).

6. The thermal insulation material foaming device with a protective structure according to claim 5, characterized in that: A linkage ring (167) is fixedly mounted on one side of the auxiliary rod (165) close to the slide rod (6), and the linkage ring (167) contacts the inner wall of the foaming cylinder (1), and the linkage ring (167) contacts the discharge pipe (3).

7. The heat-insulating material foaming device with a protective structure according to claim 6, characterized in that: The scraping device comprises a support plate (171), a support rod (172), a movable frame (173), a fixed rod (174), a scraping ring (175) and a fixed block (176), wherein the support plate (171) is fixedly mounted on the inner wall of the discharge pipe (3), the support rod (172) slides through the left and right walls of the support plate (171), the movable frame (173) is fixedly mounted on both ends of the support rod (172), the fixed rod (174) is fixedly mounted on a side of the movable frame (173) away from the slide rod (6), the scraping ring (175) is fixedly mounted on an end of the fixed rod (174) away from the slide rod (6), and the fixed block (176) is fixedly mounted on the inner wall of the movable frame (173).

8. The thermal insulation material foaming device with a protective structure according to claim 7, characterized in that: A No. 4 spring is provided between the support plate (171) and the support rod (172), the scraper ring (175) contacts the inner wall of the discharge pipe (3), and one end of the movable frame (173) close to the linkage ring (167) is provided as an inclined surface.

9. A foaming method for a heat-insulating material foaming device with a protective structure, using the heat-insulating material foaming device with a protective structure according to claim 8, characterized in that: The following steps are involved: Step 1: The raw material to be foamed is fed into the foaming cylinder (1) through the feeding pipe (2), and at the same time, the motor (4) is driven to drive the rotating rod (5) to rotate counterclockwise, the rotating rod (5) rotates to drive the sliding rod (6), and the sliding rod (6) rotates to drive the extrusion rod (7), and the extrusion rod (7) rotates to contact the inclined surface of the placement block (8) and squeeze the placement block (8), and the extrusion rod (7) is moved upward by the reaction force of the extrusion placement block (8); Step 2: The extrusion rod (7) moves upward, driving the slide rod (6) to move upward, and the slide rod (6) moves upward, driving the placement cylinder (13) to move upward, and the placement cylinder (13) moves upward to contact the inclined surface of the hollow block (11) and squeeze the hollow block (11), and the hollow block (11) is squeezed by the placement cylinder (13) and moves toward the placement plate (9), and the hollow block (11) moves toward the placement plate (9) and drives the shielding plate (12) to move to shield the bottom of the feed pipe (2); Step 3: After the slide bar (6) continues to rotate counterclockwise and drives the extrusion bar (7) to continue to rotate and disengage from the placement block (8), the placement tube (13) drives the slide bar (6) to move downward and reset under the elastic force of the No. 1 spring, and the placement tube (13) moves downward and resets to disengage from the hollow block (11). After the hollow block (11) disengages from the placement tube (13), it moves in a direction away from the placement plate (9) under the elastic force of the No. 2 spring; Step 4: The hollow block (11) moves away from the placement plate (9) to drive the shielding plate (12) to move. The shielding plate (12) moves to remove the shielding of the feed pipe (2). At the same time, the gas foaming agent is injected into the foaming tube (1) through the pressure pipe and pressurized. After the foaming process is completed, the foam is solidified by cooling to form a stable foaming material.

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