Buffer conveying device and method for rubber and plastic sponge heat preservation pipe production

Abstract

The invention belongs to the technical field of thermal insulation pipe production, and discloses a buffer conveying device for rubber and plastic sponge thermal insulation pipe production and a conveying method. The supporting plate is fixedly arranged on one side of the rack, and a cutting assembly used for cutting the thermal insulation pipe is arranged on one side of the supporting plate; the fixing assemblies are used for fixing the thermal insulation pipe and are arranged on the two sides of the rack; the cooling assembly is arranged at the bottom of the machine frame and used for cooling the thermal insulation pipe before cutting. When the thermal insulation pipe cutting machine is used, the cutting assembly converts vertical impact force of a cutting knife into horizontal buffering force through the structure of an extrusion spring, a sliding block and a bottom rod, the impact force is reduced, the cutting edge of the cutting knife replaces instantaneous impact in a gradual mode, and the cutting efficiency is improved. Cutting edge stress is reduced, and the service life of the cutting knife is prolonged.

Description

Technical Field

[0001] This invention relates to the field of thermal insulation pipe production technology, and in particular to a buffer conveying device and conveying method for the production of rubber and plastic sponge thermal insulation pipes. Background Technology

[0002] Rubber and plastic sponge insulation pipes are widely used in building heating, pipeline insulation and other fields due to their excellent thermal insulation performance and flexibility. Their production process requires key steps such as foaming molding, cooling and curing, and precise cutting.

[0003] After the production of rubber-plastic foam insulation pipes is completed, they need to be cut. However, during cutting, the cutting structure lacks a buffer mechanism, and the cutting blade is subjected to concentrated force in an instant, shortening its service life and requiring frequent replacement and maintenance. Furthermore, during cutting, some insulation pipes are manually fixed, reducing production efficiency; others are mechanically fixed, but this requires an additional drive source, which is not energy-efficient. Moreover, in traditional rubber-plastic foam insulation pipe production lines, cooling, conveying, and cutting are independent processes. After foaming, the insulation pipes need to be transferred to a cooling tank to stand, and then transported to the cutting equipment after cooling. This is not only time-consuming, but also makes the incompletely cured pipes susceptible to deformation under external pressure during transport. (Invention Content)

[0004] This invention provides a buffer conveying device for the production of rubber and plastic sponge insulation pipes. Through the coordinated design of cooling, cutting, and fixing components, this invention achieves integrated and efficient production of insulation pipe conveying, cooling, and cutting.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a buffer conveying device for the production of rubber and plastic sponge insulation pipes, the device comprising:

[0006] frame;

[0007] A support plate is fixedly installed on one side of the frame, and a cutting assembly for cutting the insulation pipe is provided on one side of the support plate.

[0008] Fixing components for securing the insulation pipe are located on both sides of the frame;

[0009] A cooling assembly, located at the bottom of the frame, is used to cool the insulation pipe before cutting;

[0010] The cutting assembly includes a hollow cylinder, a pressure plate, a transmission rod, a frame, and a round rod. The hollow cylinder is fixedly embedded in the inner wall of the support plate. The pressure plate is movably embedded in the inner wall of the hollow cylinder. The transmission rod is movably embedded in the inner wall of the hollow cylinder. One end of the transmission rod is fixedly located at the center of one side of the frame, and the other end of the transmission rod is fixedly located on one side of the pressure plate. The round rod is fixedly located on both sides of the inner wall of the frame.

[0011] As a further improvement of the present invention: the cutting assembly further includes two sliders, two compression springs, two first connecting shafts and two second connecting shafts. The two sliders are movably sleeved on the outer surface of the round rod. The two compression springs are respectively fixed on the opposite side of the two sliders and movably sleeved on the outer surface of the round rod. The two first connecting shafts are respectively movably embedded in one end of the two bottom rods, and the two second connecting shafts are respectively movably embedded in the other end of the two bottom rods.

[0012] As a further improvement of the present invention: the cutting assembly further includes a mounting base, a cutting blade, a fixing frame, and a hydraulic rod. The two ends of the two hollow cylinders are fixedly disposed on the inner wall of the mounting base. The cutting blade is mounted on one side of the mounting base. The fixing frame is fixedly disposed on the upper side of the support plate. The hydraulic rod is mounted on the inner wall of the fixing frame. The output end of the hydraulic rod is fixedly disposed on the side of the pressure plate away from the transmission rod.

[0013] As a further improvement of the present invention: the fixing assembly includes two cylinders, two circular plates, two push rods and two return springs. The two cylinders are respectively fixedly disposed on opposite sides of the frame. The two circular plates are respectively movably embedded in the inner walls of the two cylinders. The two push rods are respectively fixedly disposed on opposite sides of the two circular plates. One end of the two return springs is respectively fixedly disposed on the opposite sides of the two circular plates, and the other end of the two return springs is respectively fixedly disposed on one side of the inner wall of the two cylinders.

[0014] As a further improvement of the present invention: the fixing assembly further includes two fixing plates, two second sponge pads and two air guide tubes. The two fixing plates are respectively fixedly disposed on opposite ends of the two push rods, the two second sponge pads are respectively fixedly disposed on opposite sides of the two fixing plates, one end of the two air guide tubes is respectively fixedly disposed on the outer surface of the two cylinders, and the other end of the two air guide tubes is fixedly disposed on the outer surface of the hollow cylinder near the bottom.

[0015] As a further improvement of the present invention: the cooling assembly includes a water tank, a first water pipe, a water pump, a second water pipe, and a plurality of nozzles. The water tank is fixedly installed at the bottom of the frame. One end of the first water pipe is installed on the side of the water tank near the bottom, and the other end of the first water pipe is installed at the inlet of the water pump. One end of the second water pipe is installed at the outlet of the water pump. The plurality of nozzles are installed on the outer surface of the second water pipe, and the other end of the second water pipe is fixedly installed on the side of the water tank away from the first water pipe.

[0016] As a further improvement of the present invention: the cooling assembly further includes a water inlet pipe, a drain pipe and two guide plates. The water inlet pipe is fixedly disposed on one side of the water tank, the drain pipe is fixedly disposed at the center of the bottom of the water tank, and the two guide plates are inclinedly disposed on the inner wall of the frame.

[0017] As a further improvement of the present invention: a conveyor belt is installed on the inner wall of the frame, and a base plate is installed on the side of the frame near the frame by screws, and a first sponge pad is fixedly provided on the upper side of the base plate.

[0018] As a further improvement of the present invention: a valve is installed on the outer surface of the drain pipe.

[0019] A method for buffer conveying in the production of rubber and plastic sponge insulation pipes, comprising the aforementioned buffer conveying device for the production of rubber and plastic sponge insulation pipes, including the following steps:

[0020] S1. After the insulation pipe is produced, the insulation pipe is placed on the right side of the frame, that is, on the upper side of the conveyor belt. At this time, the switch of the conveyor belt is turned on, and the conveyor belt drives the insulation pipe to move. When the insulation pipe moves from right to left, it will pass under the position of multiple second water pipes. At this time, the external power switch of the water pump is turned on, and the water pump inlet end generates suction, which further draws the cooling water in the water tank through the first water pipe and discharges it into the second water pipe. Cooling water can be introduced into the water tank through the inlet pipe. The cooling water discharged into the second water pipe is discharged back into the water tank through the other end of the second water pipe. During this process, the cooling water will be sprayed downward through multiple nozzles to cool the moving insulation pipe. The cooling water will also flow into the inside of the frame. Since the two guide plates are inclined inside the frame, the cooling water is discharged into the water tank for reuse through the inclined surfaces of the two guide plates.

[0021] S2. After cooling, the insulation pipe is conveyed by the conveyor belt and passes under the cutting blade. During cutting, the hydraulic rod switch is turned on, controlling the output end of the hydraulic rod to move downward. The output end of the hydraulic rod further pushes the transmission rod downward, causing the frame to move downward. During the frame's movement, the cutting edge of the cutting blade contacts the outer surface of the insulation pipe, at which point the cutting blade experiences pressure, which is transmitted to the mounting base. The two base rods can rotate around the two second connecting shafts or the two first connecting shafts, and the two sliders can slide on the outer surface of the round rods, transferring the vertical pressure on the mounting base. The horizontal sliding force of the two sliders is converted into a uniform distribution of pressure. The base plate supports the cutting blade. The first sponge pad is soft, which avoids the wear of the cutting edge caused by the rigid contact between the cutting blade and the base plate. When the mounting base is under pressure, it will move upward. Furthermore, the two sliders are pushed by one end of the two base rods, so that the two sliders move in opposite directions on the outer surface of the round rod. The two compression springs move with the two sliders. Furthermore, the inner walls on both sides of the frame and the opposite sides of the two sliders squeeze the two compression springs respectively. When the two compression springs are squeezed, they will generate a counterforce to buffer the cutting.

[0022] S3. During cutting, the pressure plate moves downward under the drive of the hydraulic rod output end. The pressure plate and the inner wall of the hollow cylinder are in close contact. When the pressure plate moves downward, it will squeeze the gas under the pressure plate inside the hollow cylinder. The gas is pushed into the inside of the two cylinders through two gas guide pipes. The two circular plates can slide on the inner wall of the two cylinders respectively. At this time, the gas delivered into the two cylinders will push the two circular plates, causing the two circular plates to move in opposite directions. Further, the two fixed plates are moved by the two push rods, and then the two second sponge pads press on the outer surface of the insulation pipe to fix the position of the insulation pipe.

[0023] S4. After the cutting is completed, the pressure plate will move upward along with the output end of the hydraulic rod. At this time, the two circular plates are not squeezed by the gas, and the two return springs have elastic force. The two circular plates are subjected to the elastic force of the two return springs, which drives the two fixed plates to move in opposite directions, loosening the fixation of the insulation pipe. After the cutting is completed, the insulation pipe is transported by the conveyor belt.

[0024] Compared with the prior art, the advantages and positive effects of the present invention are as follows:

[0025] 1. In use, the cutting assembly transforms the vertical impact force of the cutting blade into a horizontal buffer force through the structure of the compression spring, slider, and base rod, thereby reducing the impact force. This allows the cutting blade to gradually replace the instantaneous impact, reducing the stress on the cutting edge and extending the service life of the cutting blade. At the same time, the opposing forces of the two compression springs absorb vibration energy, reducing the vibration amplitude during cutting and preventing the material around the cut from breaking due to vibration, thus ensuring the closed-pore rate of the insulation pipe after cutting.

[0026] 2. This invention achieves mechanical linkage between cutting and fixing through a hollow cylinder and an air guide pipe. The hydraulic rod drives the cutting while simultaneously triggering the action of the fixing component. No additional control system is required, avoiding deviations caused by asynchronous cutting and fixing, and achieving energy-saving effects.

[0027] 3. The present invention uses a circulating spray design of the cooling component to cool the conveyed insulation pipe, so that the insulation pipe solidifies and sets, improving the adaptability of subsequent cutting, reducing cutting defects, and realizing the recycling of cooling water in conjunction with the guide plate.

[0028] 4. This invention integrates the conveyor belt, cooling components, cutting components and fixing components into the frame, reducing the overall footprint and adapting to the layout requirements of small and medium-sized production workshops. Attached Figure Description

[0029] Figure 1 This invention presents a schematic diagram of the overall three-dimensional structure of a buffer conveying device and conveying method for the production of rubber and plastic sponge insulation pipes.

[0030] Figure 2 This invention presents a side-view three-dimensional structural diagram of a buffer conveying device and conveying method for the production of rubber and plastic sponge insulation pipes.

[0031] Figure 3 This invention presents a front-view three-dimensional structural diagram of a buffer conveying device and conveying method for the production of rubber and plastic sponge insulation pipes.

[0032] Figure 4 This invention provides a cross-sectional three-dimensional structural diagram of the frame in a buffer conveying device and conveying method for the production of rubber and plastic sponge insulation pipes.

[0033] Figure 5 This invention provides a cross-sectional three-dimensional structural diagram of the cylinder used in a buffer conveying device and conveying method for the production of rubber and plastic sponge insulation pipes.

[0034] Figure 6 This invention provides a cross-sectional three-dimensional structural diagram of the hollow cylinder used in a buffer conveying device and conveying method for the production of rubber and plastic sponge insulation pipes.

[0035] Figure 7 This invention provides a cross-sectional three-dimensional structural diagram of the frame in a buffer conveying device and conveying method for the production of rubber and plastic sponge insulation pipes.

[0036] Figure 8 This invention proposes a buffer conveying device and conveying method for the production of rubber and plastic sponge insulation pipes. Figure 7 Enlarged view of point A in the middle.

[0037] Legend: 1. Frame; 101. Conveyor belt; 102. Support plate; 103. Base plate; 104. First sponge pad; 2. Cutting assembly; 201. Hollow cylinder; 202. Pressure plate; 203. Transmission rod; 204. Frame; 205. Round rod; 206. Slider; 207. Compression spring; 208. First connecting shaft; 209. Base rod; 210. Second connecting shaft; 211. Mounting base; 212. Cutting blade; 2 13. Fixing frame; 214. Hydraulic rod; 3. Fixing assembly; 301. Cylinder; 302. Circular plate; 303. Push rod; 304. Fixing plate; 305. Second sponge pad; 306. Return spring; 307. Air guide pipe; 4. Cooling assembly; 401. Water tank; 402. First water pipe; 403. Water pump; 404. Second water pipe; 405. Nozzle; 406. Water inlet pipe; 407. Drain pipe; 408. Guide plate. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] like Figures 1 to 8 As shown, the present invention provides a buffer conveying device and conveying method for the production of rubber and plastic sponge insulation pipes. The device includes: a frame 1, a support plate 102 fixedly disposed on one side of the frame 1, and a cutting component 2 for cutting the insulation pipe disposed on one side of the support plate 102, a fixing component 3 for fixing the insulation pipe disposed on both sides of the frame 1, and a cooling component 4 disposed at the bottom of the frame 1. The cooling component 4 is used to cool the insulation pipe before cutting. The cutting component 2 includes a hollow cylinder 20. 1. A pressure plate 202, a transmission rod 203, a frame 204, and a round rod 205 are provided. The hollow cylinder 201 is fixedly embedded in the inner wall of the support plate 102. The pressure plate 202 is movably embedded in the inner wall of the hollow cylinder 201. The transmission rod 203 is movably embedded in the inner wall of the hollow cylinder 201. One end of the transmission rod 203 is fixedly set at the center of one side of the frame 204, and the other end of the transmission rod 203 is fixedly set at one side of the pressure plate 202. The round rod 205 is fixedly set on both sides of the inner wall of the frame 204.

[0040] During use, the insulation pipe is cooled by the cooling component 4, the insulation pipe is cut by the cutting component 2, and the insulation pipe is fixed by the fixing component 3. The pressure plate 202 and the inner wall of the hollow cylinder 201 are in close contact, and the pressure plate 202 can slide on the inner wall of the hollow cylinder 201.

[0041] Please see Figures 1 to 8In one embodiment, the cutting assembly 2 further includes two sliders 206, two compression springs 207, two first connecting shafts 208, and a second connecting shaft 210. The two sliders 206 are movably sleeved on the outer surface of the round rod 205. The two compression springs 207 are respectively fixedly disposed on opposite sides of the two sliders 206 and movably sleeved on the outer surface of the round rod 205. The two first connecting shafts 208 are respectively movably embedded at one end of the two bottom rods 209, and the two second connecting shafts 210 are respectively movably embedded at the other end of the two bottom rods 209. The two compression springs 207 move together with the two sliders 206, further framing the two ends of the frame 204. The inner wall of the side and the two sliders 206 opposite to each other squeeze two compression springs 207 respectively. When squeezed, the two compression springs 207 will generate a reverse force to buffer the cutting. The reverse force of the two compression springs 207 can resolve the instantaneous impact force of the cutting blade 212, so that the cutting blade 212 cuts in with a "progressive" instead of "instantaneous impact", reducing the force on the cutting edge. The two bottom rods 209 can rotate with the two second connecting shafts 210 or the two first connecting shafts 208 as the axis, and the two sliders 206 can slide on the outer surface of the round rod 205, converting the vertical pressure on the mounting base 211 into the horizontal sliding force of the two sliders 206.

[0042] Please see Figures 1 to 8 In one embodiment, the cutting assembly 2 further includes a mounting base 211, a cutting blade 212, a fixing frame 213, and a hydraulic rod 214. The two ends of the two hollow cylinders 201 are fixedly disposed on the inner wall of the mounting base 211. The cutting blade 212 is mounted on one side of the mounting base 211. The fixing frame 213 is fixedly disposed on the upper side of the support plate 102. The hydraulic rod 214 is mounted on the inner wall of the fixing frame 213. The output end of the hydraulic rod 214 is fixedly disposed on the side of the pressure plate 202 away from the transmission rod 203. When the switch of the hydraulic rod 214 is turned on, the output end of the hydraulic rod 214 is controlled to move downward. Furthermore, the output end of the hydraulic rod 214 pushes the transmission rod 203 downward, thereby causing the frame 204 to move downward. The fixing frame 213 supports the hydraulic rod 214.

[0043] Please see Figures 1 to 8In one embodiment, the fixing assembly 3 includes two cylinders 301, two circular plates 302, two push rods 303, and two return springs 306. The two cylinders 301 are respectively fixedly disposed on opposite sides of the frame 1. The two circular plates 302 are respectively movably embedded in the inner walls of the two cylinders 301. The two push rods 303 are respectively fixedly disposed on opposite sides of the two circular plates 302. One end of the two return springs 306 is respectively fixedly disposed on the opposite side of the two circular plates 302, and the other end of the two return springs 306 is respectively fixedly disposed on one side of the inner wall of the two cylinders 301. The two circular plates 302 can slide on the inner wall of the two cylinders 301. The two circular plates 302 are not compressed by gas. The two return springs 306 have elastic force. The two circular plates 302 are driven by the elastic force of the two return springs 306 to move the two fixing plates 304 in opposite directions, thus loosening the fixation of the heat preservation tube.

[0044] Please see Figures 1 to 8 In one embodiment, the fixing assembly 3 further includes two fixing plates 304, two second sponge pads 305, and two air guide pipes 307. The two fixing plates 304 are respectively fixedly disposed on opposite ends of the two push rods 303, and the two second sponge pads 305 are respectively fixedly disposed on opposite sides of the two fixing plates 304. One end of the two air guide pipes 307 is respectively fixedly disposed on the outer surface of the two cylinders 301, and the other end of the two air guide pipes 307 is fixedly disposed on the outer surface of the hollow cylinder 201 near the bottom. The pressure plate 202 moves downward under the drive of the output end of the hydraulic rod 214. The pressure plate 202 and the inner wall of the hollow cylinder 201 are in close contact. When the pressure plate 202 moves downward, it will squeeze the gas below the pressure plate 202 inside the hollow cylinder 201, and push the gas into the interior of the two cylinders 301 through the two air guide pipes 307 respectively.

[0045] Please see Figures 1 to 8In one embodiment, the cooling assembly 4 includes a water tank 401, a first water pipe 402, a water pump 403, a second water pipe 404, and a plurality of nozzles 405. The water tank 401 is fixedly disposed at the bottom of the frame 1. One end of the first water pipe 402 is installed on the side of the water tank 401 near the bottom, and the other end of the first water pipe 402 is installed at the inlet of the water pump 403. One end of the second water pipe 404 is installed at the outlet of the water pump 403. The plurality of nozzles 405 are installed on the outer surface of the second water pipe 404. The other end of the second water pipe 404 is fixedly disposed in the water tank 401 away from the first water pipe 402. On one side, the external power switch of the water pump 403 is turned on, and the water inlet of the water pump 403 generates suction, which further draws the cooling water inside the water tank 401 through the first water pipe 402 and discharges it into the second water pipe 404. Cooling water can be introduced into the water tank 401 through the water inlet pipe 406. The cooling water discharged into the second water pipe 404 is discharged back into the water tank 401 through the other end of the second water pipe 404. During this process, the cooling water will pass through multiple nozzles 405 and spray the cooling water downwards, thereby cooling the moving insulation pipe.

[0046] Please see Figures 1 to 8 In one embodiment, the cooling assembly 4 further includes an inlet pipe 406, a drain pipe 407, and two guide plates 408. The inlet pipe 406 is fixedly disposed on one side of the water tank 401, and the drain pipe 407 is fixedly disposed at the center of the bottom of the water tank 401. The two guide plates 408 are inclinedly disposed on the inner wall of the frame 1. A valve is installed on the outer surface of the drain pipe 407. Cooling water will flow into the interior of the frame 1. Since the two guide plates 408 are inclinedly disposed inside the frame 1, the cooling water is discharged into the interior of the water tank 401 through the inclined surfaces of the two guide plates 408 for reuse. The cooling water inside the water tank 401 can be discharged by opening the valve on the drain pipe 407, and the cooling water can be replaced.

[0047] Please see Figures 1 to 8 In one embodiment, a conveyor belt 101 is installed on the inner wall of the frame 1. A base plate 103 is installed on the side of the frame 1 near the frame 204 by screws. A first sponge pad 104 is fixedly installed on the upper side of the base plate 103. After the insulation pipe is produced, the insulation pipe is placed on the right side of the frame 1, that is, on the upper side of the conveyor belt 101. At this time, the switch of the conveyor belt 101 is turned on, and the conveyor belt 101 further drives the insulation pipe to move. When the insulation pipe moves from right to left, the base plate 103 supports the cutting of the cutting blade 212. The first sponge pad 104 is soft and protects the cutting edge of the cutting blade 212.

[0048] The working principle and usage process of this invention: After the insulation pipe is produced, it is placed on the right side of the frame 1, that is, on the upper side of the conveyor belt 101, so that... Figure 1The main function is to turn on the switch of the conveyor belt 101, which then drives the insulation pipe to move. As the insulation pipe moves from right to left, it passes under several second water pipes 404. At this time, the external power switch of the water pump 403 is turned on, and the water pump 403 generates suction at its inlet end, drawing the cooling water from inside the water tank 401 through the first water pipe 402 and discharging it into the second water pipe 404. Cooling water can then be introduced into the water tank 401 through the inlet pipe 406. The cooling water discharged into the second water pipe 404 is then discharged back into the water tank 401 through the other end of the second water pipe 404. During this process... Cooling water is sprayed downwards through multiple nozzles 405 to cool the moving insulation pipe. The cooling water also flows into the interior of the frame 1. Since two guide plates 408 are inclined inside the frame 1, the cooling water is discharged into the water tank 401 through the inclined surfaces of the two guide plates 408 for reuse. The cooling water in the water tank 401 can be discharged by opening the valve on the drain pipe 407, and the cooling water can be replaced. In this way, the insulation pipe is cooled during transportation, so that the insulation pipe can be solidified and shaped, improving the adaptability of subsequent cutting and reducing cutting defects.

[0049] After cooling, the insulation pipe is conveyed by the conveyor belt 101 and passes under the cutting blade 212. When cutting is required, the switch of the hydraulic rod 214 is turned on, controlling the output end of the hydraulic rod 214 to move downward. The output end of the hydraulic rod 214 further pushes the transmission rod 203 downward, causing the frame 204 to move downward. During the movement of the frame 204, the cutting edge of the cutting blade 212 contacts the outer surface of the insulation pipe, at which point the cutting blade 212 is subjected to pressure, which is transmitted to the mounting base 211. The two base rods 209 can rotate around the two second connecting shafts 210 or the two first connecting shafts 208, and the two sliders 206 can slide on the outer surface of the round rod 205, converting the vertical pressure on the mounting base 211 into the horizontal sliding force of the two sliders 206, allowing the pressure to be evenly distributed and avoiding edge chipping caused by localized stress concentration. The base plate 103 supports the cutting of the cutting blade 212, and the first sponge pad 104 is flexible. The cutting edge of the cutting blade 212 is protected. When the mounting base 211 is under pressure, it moves upward and pushes the two sliders 206 through one end of the two base rods 209. The two sliders 206 move in opposite directions on the outer surface of the round rod 205. The two compression springs 207 move together with the two sliders 206. The inner walls on both sides of the frame 204 and the opposite sides of the two sliders 206 squeeze the two compression springs 207. When squeezed, the two compression springs 207 generate a counterforce to buffer the cutting. The counterforce of the two compression springs 207 can resolve the instantaneous impact of the cutting blade 212, so that the cutting blade of the cutting blade 212 gradually replaces the instantaneous impact, reduces the force on the cutting edge, and extends the service life of the cutting blade 212. At the same time, the counterforce of the two compression springs 207 absorbs vibration energy and reduces the vibration amplitude during cutting, preventing the material around the cut from breaking due to vibration and ensuring the closed-pore rate of the insulation pipe after cutting.

[0050] During cutting, the pressure plate 202 moves downward under the output of the hydraulic rod 214. The pressure plate 202 is in close contact with the inner wall of the hollow cylinder 201. As the pressure plate 202 moves downward, it compresses the gas below the pressure plate 202 inside the hollow cylinder 201. The gas is then pushed into the interior of the two cylinders 301 through the two air guide pipes 307. The two circular plates 302 can slide on the inner walls of the two cylinders 301. At this time, the gas delivered into the two cylinders 301 pushes the two circular plates 302, causing them to move in opposite directions. Furthermore, the two push rods 303 move the two fixed plates 304, and then the two second sponge pads 305 press against the outer surface of the insulation pipe. The position of the insulation pipe is fixed. The two second sponge pads 305 are flexible and conform to the outer wall of the pipe to produce slight deformation, which transforms the local concentrated force of the fixed pressure into a uniformly distributed surface pressure, avoiding the indentation caused by pressure concentration and protecting the insulation pipe. After the cutting is completed, the pressure plate 202 will move upward with the output end of the hydraulic rod 214. At this time, the two circular plates 302 are not squeezed by gas. The two return springs 306 have elasticity. The two circular plates 302 are driven by the elasticity of the two return springs 306, which drives the two fixed plates 304 to move in opposite directions, loosening the fixation of the insulation pipe. After the cutting is completed, the insulation pipe is transported by the conveyor belt 101.

[0051] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0052] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0053] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A buffer conveying device for producing rubber-plastic sponge thermal insulation pipe, characterized in that, The device comprises: a rack (1); a support plate (102) fixedly arranged on one side of the rack (1), and one side of the support plate (102) being provided with a cutting assembly (2) for cutting a heat preservation tube; a fixing assembly (3) for fixing the heat preservation tube, the fixing assembly (3) being arranged on both sides of the rack (1); a cooling assembly (4) arranged at the bottom of the rack (1), the cooling assembly (4) being used for cooling before cutting the heat preservation tube; the cutting assembly (2) comprises a hollow cylinder (201), a pressing plate (202), a transmission rod (203), a frame (204) and a round rod (205), the hollow cylinder (201) is fixedly embedded at the inner wall of the support plate (102), the pressing plate (202) is movably embedded at the inner wall of the hollow cylinder (201), the transmission rod (203) is movably embedded at the inner wall of the hollow cylinder (201), one end of the transmission rod (203) is fixedly arranged at the center of one side of the frame (204), the other end of the transmission rod (203) is fixedly arranged at one side of the pressing plate (202), and the round rod (205) is fixedly arranged at the inner wall of the frame (204).

2. The buffering and conveying device for producing rubber-plastic sponge thermal insulation pipe according to claim 1, characterized in that: the cutting assembly (2) further comprises two sliding blocks (206), two extrusion springs (207), two first connecting shafts (208) and a second connecting shaft (210), the two sliding blocks (206) are movably sleeved on the outer surface of the round rod (205), the two extrusion springs (207) are fixedly arranged on the opposite sides of the two sliding blocks (206), and the two extrusion springs (207) are movably sleeved on the outer surface of the round rod (205), the two first connecting shafts (208) are movably embedded at one end of two bottom rods (209), and the two second connecting shafts (210) are movably embedded at the other end of the two bottom rods (209).

3. The buffering conveyor device for rubber and plastic sponge insulation pipe production according to claim 2, characterized in that: the cutting assembly (2) further comprises a mounting seat (211), a cutting knife (212), a fixing frame (213) and a hydraulic rod (214), two ends of the two hollow cylinders (201) are fixedly arranged at the inner wall of the mounting seat (211), the cutting knife (212) is mounted on one side of the mounting seat (211), the fixing frame (213) is fixedly arranged on the upper side of the support plate (102), the hydraulic rod (214) is mounted at the inner wall of the fixing frame (213), and the output end of the hydraulic rod (214) is fixedly arranged on the side of the pressing plate (202) away from the transmission rod (203).

4. The buffering conveyor device for rubber and plastic sponge insulation pipe production according to claim 1, characterized in that: The fixing assembly (3) comprises two cylinders (301), two round plates (302), two push rods (303) and two reset springs (306), the two cylinders (301) are fixedly arranged on opposite sides of the rack (1), the two round plates (302) are movably embedded on the inner walls of the two cylinders (301), the two push rods (303) are fixedly arranged on opposite sides of the two round plates (302), and one ends of the two reset springs (306) are fixedly arranged on opposite sides of the two round plates (302), and the other ends of the two reset springs (306) are fixedly arranged on one side of the inner walls of the two cylinders (301).

5. The buffering and conveying device for producing rubber-plastic sponge thermal insulation pipe according to claim 4, characterized in that: The fixing assembly (3) further comprises two fixed plates (304), two second sponge pads (305) and two air guide pipes (307), the two fixed plates (304) are fixedly arranged on opposite ends of the two push rods (303), the two second sponge pads (305) are fixedly arranged on opposite sides of the two fixed plates (304), and one ends of the two air guide pipes (307) are fixedly arranged on the outer surfaces of the two cylinders (301), and the other ends of the two air guide pipes (307) are fixedly arranged on the outer surface of the hollow cylinder (201) close to the bottom.

6. The buffering conveyor device for rubber and plastic sponge insulation pipe production according to claim 1, characterized in that: The cooling assembly (4) comprises a water tank (401), a first water pipe (402), a water pump (403), a second water pipe (404) and a plurality of spray heads (405), the water tank (401) is fixedly arranged on the bottom of the rack (1), one end of the first water pipe (402) is mounted on one side of the water tank (401) close to the bottom, the other end of the first water pipe (402) is mounted on the water inlet end of the water pump (403), one end of the second water pipe (404) is mounted on the water outlet end of the water pump (403), a plurality of the spray heads (405) are mounted on the outer surface of the second water pipe (404), and the other end of the second water pipe (404) is fixedly arranged on the side of the water tank (401) away from the first water pipe (402).

7. The buffering and conveying device for producing rubber and plastic sponge thermal insulation pipe according to claim 6, characterized in that: The cooling assembly (4) further comprises a water inlet pipe (406), a drain pipe (407) and two flow guide plates (408), the water inlet pipe (406) is fixedly arranged on one side of the water tank (401), the drain pipe (407) is fixedly arranged at the center of the bottom of the water tank (401), and the two flow guide plates (408) are arranged obliquely on the inner wall of the rack (1).

8. The buffering conveyor device for rubber and plastic sponge insulation pipe production according to claim 1, characterized in that: A conveying belt (101) is mounted on the inner wall of the rack (1), a bottom plate (103) is mounted on the side of the rack (1) close to the frame (204) through screws, and a first sponge pad (104) is fixedly arranged on the upper side of the bottom plate (103).

9. The buffering conveyor device for rubber and plastic sponge insulation pipe production according to claim 7, characterized in that: A valve is mounted on the outer surface of the drain pipe (407).

10. A buffering and conveying method for producing rubber-plastic sponge thermal insulation pipe, characterized in that: The buffer conveying device for rubber and plastic sponge heat preservation pipe production according to claims 1-9 comprises the following steps: S1, after the production of the heat preservation tube, the heat preservation tube is placed on the right side of the rack (1), that is, the upper side of the conveying belt (101), at this time, the switch of the conveying belt (101) is turned on, and the conveying belt (101) further drives the heat preservation tube to move, when the heat preservation tube moves from right to left, it will pass through the position below the plurality of second water pipes (404), at this time, the external power switch of the water pump (403) is turned on, and then the water inlet end of the water pump (403) generates suction, further, the cooling water in the water tank (401) is sucked into the water tank (401) through the first water pipe (402), and is discharged into the second water pipe (404), the cooling water discharged into the second water pipe (404) is introduced into the water tank (401) through the water inlet pipe (406) again, in the process, the cooling water passes through a plurality of nozzles (405) and sprays downward to cool the moving heat preservation tube, and the cooling water flows into the rack (1); S2, after the heat preservation tube is cooled, it will pass under the cutting knife (212) under the conveying of the conveying belt (101), when cutting, the switch of the hydraulic rod (214) is turned on, the output end of the hydraulic rod (214) is controlled to move downward, the output end of the hydraulic rod (214) pushes the transmission rod (203) downward, and then the frame (204) moves downward, in the process of moving of the frame (204), the cutting edge of the cutting knife (212) contacts the outer surface of the heat preservation tube, at this time, the cutting knife (212) will be pressed and the pressure will be transmitted to the mounting seat (211), the two bottom rods (209) can rotate around the two second connecting shafts (210) or the two first connecting shafts (208), and the two sliding blocks (206) can slide on the outer surface of the round rod (205), the vertical pressure on the mounting seat (211) is converted into horizontal sliding force of the two sliding blocks (206), so that the pressure is evenly dispersed, the bottom plate (103) supports the cutting of the cutting knife (212), the first sponge pad (104) is soft and protects the cutting edge of the cutting knife (212), and then when the mounting seat (211) is pressed, the mounting seat (211) moves upward, further, the two sliding blocks (206) are pushed by one end of the two bottom rods (209) respectively, so that the two sliding blocks (206) move away from each other on the outer surface of the round rod (205), the two sliding blocks (206) move together with the two sliding blocks (206), further, the inner walls on both sides of the frame (204) and the two sliding blocks (206) on the opposite sides of the two sliding blocks (206) respectively extrude the two extrusion springs (207), the two extrusion springs (207) generate counteracting force when extruded, and the cutting is buffered; ​ S3、In cutting, the pressing plate (202) is driven by the output end of the hydraulic rod (214) to move downward, and the pressing plate (202) is tightly attached to the inner wall of the hollow cylinder (201). When the pressing plate (202) moves downward, the gas below the pressing plate (202) in the hollow cylinder (201) is squeezed and pushed into the two cylinders (301) through the two gas guide pipes (307). The two circular plates (302) can slide on the inner wall of the two cylinders (301). At this time, the gas delivered into the two cylinders (301) pushes the two circular plates (302) to move in opposite directions, and further moves the two fixed plates (304) through the two push rods (303), so as to fix the position of the heat preservation tube by the two second sponge pads (305); S4、After cutting, the pressing plate (202) moves upward with the output end of the hydraulic rod (214). At this time, the two circular plates (302) are not squeezed by the gas, and the two reset springs (306) have elastic force. The two circular plates (302) are driven by the elastic force of the two reset springs (306) to move away from each other, releasing the fixation of the heat preservation tube. After cutting, the heat preservation tube is conveyed under the drive of the conveying belt (101).

Images