Double-wall corrugated pipe machining device

Abstract

The invention belongs to the technical field of plastic processing and cooling, and particularly relates to a double-wall corrugated pipe processing device. The double-wall corrugated pipe machining device comprises a supporting frame, a water tank, a water tank, a water pump, a cooling bin, a supporting rod, an annular water pipe, a motor, a supporting mechanism and a spraying mechanism, the water tank is fixedly connected to the upper portion of the supporting frame, the water tank is fixedly connected to the lower side of the water tank, the water pump is installed on one side of the water tank, and the cooling bin is fixedly connected to the upper side of the water tank; a plurality of supporting rods are connected in the cooling bin front and back, and the annular water pipes are evenly and fixedly connected to the supporting rods. The supporting mechanism is installed on the annular water pipe, the spraying mechanism is installed on the supporting mechanism, and the motor is installed on the surface of the cooling bin. The supporting mechanism moves and rotates along with the double-wall corrugated pipe to drive the spraying mechanism to move up and down, it is guaranteed that the distance from a spray head to the pipe face is kept consistent all the time, cooling liquid is fully sprayed to the pipe face, and then the cooling effect of the double-wall corrugated pipe is guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of plastic processing and cooling, and in particular relates to a double-wall corrugated pipe processing device. Background Art

[0002] Double-wall corrugated pipe is a new type of plastic pipe developed in the 1970s that combines an annular outer wall with a smooth inner wall. It has the advantages of environmental protection, energy saving, light weight, high strength, and corrosion resistance. In the production process of double-wall corrugated pipe, cooling technology is one of the key links, which directly affects the quality and production efficiency of the product.

[0003] The existing technologies for cooling the corrugated forming modules of the plastic corrugated pipe production equipment currently in operation on the market mainly include air-cooled cooling shaping technology, open pouring water-cooled shaping technology, and sealed pressure water-cooled shaping technology. Most of them use sealed water-cooled shaping technology, and its working principle is to evenly distribute water spray ports on the inside of the cooling chamber, and continuously spray coolant on the double-walled corrugated pipe to cool it down. This makes the sealed high-pressure cycle continuous water cooling, with high cooling efficiency and higher output. Compared with air-cooled models and second-generation intermittent water-cooled models, the output can be increased by up to 3 times.

[0004] Generally speaking, the existing technology has a high cooling efficiency for double-wall corrugated pipes, but when the machine produces double-wall corrugated pipes for a long time, because the nozzle remains fixed, the distance between the nozzle and the surface of the double-wall corrugated pipe will keep changing during the forward movement of the double-wall corrugated pipe. The sprayed coolant cannot be evenly sprayed to the trough between two adjacent peaks of the corrugated pipe and the side walls of the peaks, resulting in too small cooling water flow in some places, thereby causing the water jacket temperature to be too high, which will in turn cause the inner wall of the produced double-wall corrugated pipe to be uneven. The existing technology has proposed a good solution to this problem. By using a motor to drive the conduit and the nozzle to move up and down along the peaks and troughs of the double-wall corrugated pipe, the distance from the nozzle to the double-wall corrugated pipe is ensured to be equal to ensure the cooling effect of the double-wall corrugated pipe.

[0005] Although the existing technology solves the problem of uneven inner wall caused by inconsistent distance between the nozzle and the double-walled corrugated pipe, the following problems still exist: the use of a motor to drive the nozzle up and down cannot accurately move the nozzle along the crest and trough of the double-walled corrugated pipe, which is prone to errors, causing the high-temperature double-walled corrugated pipe to collide with the conduit and the nozzle, thereby damaging the conduit and the nozzle, and affecting the production quality of the double-walled corrugated pipe. In addition, the cost of using a motor is high, and the motor is set inside the cooling device, which is prone to water damage.

[0006] In view of the above situation, in order to overcome the above technical problems, the present invention designs a double-wall corrugated pipe processing device. Summary of the invention

[0007] The purpose of the present invention is to provide a double-wall corrugated processing device to solve the problem that the water jacket temperature is too high due to the inconsistent distance from the nozzle to the double-wall corrugated pipe, making the inner wall of the double-wall corrugated pipe uneven in some places. By arranging a spraying mechanism and a supporting mechanism, the nozzle is driven by the force when the double-wall corrugated pipe is extruded, and the nozzle moves up and down periodically with the double-wall corrugated pipe, ensuring that the distance from the nozzle to the pipe surface is always consistent so that the coolant is fully sprayed onto the pipe surface, thereby ensuring the cooling effect of the double-wall corrugated pipe.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] A double-wall corrugated pipe processing device includes a support frame, a water trough, a water tank, a water pump, a cooling bin, a support rod, an annular water pipe, and a motor, a support mechanism and a spray mechanism. The water trough is fixedly connected to the top of the support frame, the water tank is fixedly connected to the bottom of the water trough, the water pump is installed on one side of the water tank, the cooling bin is fixedly connected to the top of the water trough, a plurality of support rods are connected front and back in the cooling bin, the support rods are arranged in a circle and run through the entire cooling bin, the annular water pipe is evenly fixedly connected to the support rod and is perpendicular to the support rod, and the motor is installed on the surface of the cooling bin. The support mechanism is installed on the annular water pipe, the spray mechanism is installed on the support mechanism, and the motor is installed on the surface of the cooling bin. The support mechanism moves and rotates with the double-wall corrugated pipe, driving the spray mechanism to move up and down.

[0010] It can be seen that in the cooling process of double-wall corrugated pipes, most of the methods used are to set up long strip support frames in the cooling equipment to support the movement of the double-wall corrugated pipes in the cooling chamber. However, considering that the double-wall corrugated pipes are in a high temperature state when they are just produced, compared with this solution, the traditional method will produce a lot of friction between the support frame and the wave peaks of the double-wall corrugated pipes during the movement of the double-wall corrugated pipes, affecting the appearance quality of the corrugated pipes, and the support frame will affect the contact between the coolant and the pipe surface, affecting the cooling effect.

[0011] Preferably, the support mechanism includes a housing 1, a fixed shaft, a support wheel, a wheel disc, and a grinding wheel. The fixed shaft is fixed to the inner wall of the housing 1, the support wheel is rotatably connected to the side wall of the fixed shaft, the wheel disc is rotatably mounted at the end of each gear tooth of the support wheel, and the grinding wheel is evenly rotatably mounted on the side of the wheel disc. The diameter of the wheel disc is slightly smaller than the diameter of the semicircle of the trough of the double-walled corrugated pipe, and the length of the support wheel teeth is greater than the distance from the crest to the trough.

[0012] In the above scheme, when the double-walled corrugated pipe moves forward, the outermost side of the grinding wheel installed on the wheel disc will contact one side of the crest of the double-walled corrugated pipe, and as the double-walled corrugated pipe moves forward, the supporting wheel rotates, and the grinding wheel will rotate along the side wall until it contacts the trough surface. In this process, the grinding wheel itself is also rotating. During the entire contact process, the supporting mechanism always gives the double-walled corrugated pipe a supporting force pointing to the center of the circle. During the entire process, the surface of the grinding wheel is rough, which increases the friction. No sliding friction will occur with the surface of the double-walled corrugated pipe, and the surface of the double-walled corrugated pipe will not be worn. At the same time, the rotation of the grinding wheel itself is used to remove burrs on the surface of the double-walled corrugated pipe.

[0013] Preferably, the spray mechanism comprises a second shell, a fixed rod, a limit block, a mobile rod, a conduit, a spray head, a rocker, a disc, a speed change wheel, and a large gear. The second shell is symmetrically equipped with two fixed blocks along the center line, and the distance between the two fixed blocks is equal to the width of the mobile rod. The two sides of the mobile rod are slidably connected to the two fixed blocks respectively. The conduit is fixedly connected to the lower end of the mobile rod, and the spray head is fixedly connected to the end of the conduit. One end of the rocker is hinged to the upper end of the mobile rod, and the eccentric position of the disc is rotatably connected to the other end of the rocker. The speed change wheel is fixedly connected to the axis of the disc. The large gear is meshed with the speed change wheel and the center line is in the same plane as the center line of the mobile rod. One end of the fixed rod is fixedly connected to the side wall of the second shell, and the other end is rotatably connected to the axis of the speed change wheel. The ratio of the number of teeth of the large gear to the number of teeth of the speed change wheel is equal to the number of teeth of the support wheel in the support mechanism.

[0014] In the above scheme, when the double-walled corrugated pipe moves forward, the wave crest will drive the supporting mechanism to rotate, and the large gear is fixedly connected to the supporting mechanism and will rotate accordingly. The rotation of the large gear will drive the speed change wheel and the disc to rotate. When the disc rotates, it will drive one end of the rocker connected to the eccentric position on it to perform circular motion, and the other end is connected to the moving rod. Because the moving rod is restricted by the fixed block, the moving rod moves up and down with the rocker, and the conduit and nozzle fixed at the end of the moving rod will also move up and down accordingly, so as to move forward with the double-walled corrugated pipe. Because the support wheel and the wave crest of the double-walled corrugated pipe are in a similar meshing form, the conduit will complete a contraction and extension every time it passes a wave crest, so as to achieve the effect of fully spraying the trough surface between the wave crests and the two walls of the wave crests.

[0015] Preferably, the diameter of the wheel disc is slightly smaller than the diameter of the semicircular surface of the crest and trough of the double-wall corrugated pipe, and the radius of the grinding wheel is slightly larger than the horizontal distance from the center of the grinding wheel to the side of the wheel disc.

[0016] In the above scheme, the diameter of the wheel disc is slightly smaller than the diameter of the semicircular surface of the wave crest and trough of the double-walled corrugated pipe, and the radius of the grinding wheel is slightly larger than the horizontal distance from the center of the grinding wheel to the side of the wheel disc. This can ensure that the grinding wheel fits perfectly on the surface of the double-walled corrugated pipe when rolling on the surface of the double-walled corrugated pipe, and the wheel disc will not contact the double-walled corrugated pipe to cause friction between the wheel disc and the surface of the double-walled corrugated pipe.

[0017] Preferably, the two side surfaces of the wheel disc are hollowed out, and there is a certain gap between the inner walls on both sides and the grinding wheel.

[0018] In the above scheme, hollows are provided on both sides of the wheel disc, so that the spray mechanism can cool down the wheel disc and the grinding wheel at the same time when cooling the surface of the double-walled corrugated pipe. At the same time, a certain gap is provided between the inner walls on both sides of the grinding wheel and the grinding wheel to prevent friction between the wheel disc and the grinding wheel, thereby increasing the service life of the grinding wheel and the wheel disc, and reducing the force acting on the double-walled corrugated pipe, thereby preventing the grinding wheel and the double-walled corrugated pipe from generating sliding friction and damaging the surface of the double-walled corrugated pipe.

[0019] Preferably, when the nozzle reaches the lowermost end, it coincides with the central axis of the wheel disc.

[0020] In the above scheme, when the nozzle reaches the lowermost end, it coincides with the central axis of the wheel disc, so that at this time, the distance from the nozzle to the two walls and the trough is equal, and the spraying effect is most uniform at this time. At this time, the coolant sprayed by the nozzle can evenly enter the wheel disc from the hollow part of the wheel disc, and can flush and cool the surface of the grinding wheel that has been transferred into the wheel disc.

[0021] It can be seen that most of the existing double-wall corrugated pipe cooling devices use ordinary high-pressure nozzles and atomizing nozzles. Compared with this solution, firstly, the spraying range is small, which easily leads to uneven cooling; secondly, the cooling effect is poor, which easily leads to insufficient cooling and long cooling time, affecting production efficiency.

[0022] Preferably, the present solution adopts a spherical nozzle, and a spherical nozzle is installed at the lower end of the conduit. The spherical nozzle has a plurality of water spray holes distributed thereon, and the nozzle diameter is smaller than the distance between the two wave peaks.

[0023] In the above scheme, the spherical nozzle has a wider spraying range than the ordinary nozzle and is easier to reach between the two wave peaks, so that the coolant sprayed on the surface of the double-wall corrugated pipe is more uniform, and can be sprayed onto the disc and grinding wheel to remove the burrs attached to the grinding wheel and cool the grinding wheel and disc at the same time.

[0024] The supporting wheel, wheel disc and grinding wheel are all made of materials that are resistant to high temperatures and are not easily deformed under high temperature conditions.

[0025] Preferably, the grinding wheel is made of silicon carbide material with a mesh size of 150 to 400. It is not only wear-resistant but also high-temperature resistant without damaging the surface of the double-walled corrugated pipe. It increases the friction during contact with the double-walled corrugated pipe and is less likely to cause sliding friction, which affects the appearance and quality of the double-walled corrugated pipe.

[0026] Preferably, the support wheel, the movable rod and the center line of the nozzle are in the same vertical plane.

[0027] In the above scheme, the centerline positions of the support wheel, the movable rod and the nozzle are arranged in the same plane. Such an arrangement enables the support wheel to accurately drive the nozzle and the movable rod to move up and down as the double-walled corrugated pipe rotates, without causing the double-walled corrugated pipe to collide with the nozzle and the guide rod. At the same time, the nozzle can cool the support wheel and the wheel disc at the end of the support wheel when spraying coolant.

[0028] Compared with the existing double-wall corrugated pipe processing device, the beneficial effects of the present invention are:

[0029] The existing double-wall corrugated pipe processing devices generally have the problem of being unable to uniformly cool the trough between the two wave peaks and the two side walls of the double-wall corrugated pipe, which will lead to uneven cooling and make the inner wall of the double-wall corrugated pipe uneven, affecting the quality of the double-wall corrugated pipe. The present invention uses the forward driving force of the double-wall corrugated pipe to drive the support wheel to rotate, and drives the moving rod to move up and down through the rotation of the support wheel to realize the up and down movement of the nozzle, ensuring that the distance between the nozzle end and the surface of the double-wall corrugated pipe is always consistent. Compared with using a motor to control the up and down movement of the nozzle, the mechanical method is more accurate and the cost is lower.

[0030] The present invention arranges a supporting mechanism and arranges the end of the supporting wheel teeth into a wheel disc and a grinding wheel. On the one hand, it replaces the traditional supporting frame, reduces the sliding friction with the surface of the double-wall corrugated pipe, and improves the appearance and quality of the double-wall corrugated pipe. On the other hand, the grinding wheel further increases the static friction while pre-grinding the surface of the double-wall corrugated pipe to remove surface burrs.

[0031] The present invention arranges a spherical nozzle and arranges the spherical nozzle and the axis of the supporting wheel in the same vertical plane, so that not only can the trough and inner wall of the double-wall corrugated pipe be evenly sprayed for cooling, thereby ensuring uniform spraying of cooling water on the double-wall corrugated pipe, but also the wheel disc and grinding wheel in direct contact with the double-wall corrugated pipe can be cooled when moving to the lowermost end, thereby extending the service life of the supporting mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The above and other aspects of the present invention will now be described, by way of example only, with reference to the accompanying drawings, in which:

[0033] Figure 1It is a schematic diagram of the overall axonometric structure of the double-wall corrugated pipe processing device of the present invention;

[0034] Figure 2 It is a schematic diagram of a front view of a double-wall corrugated pipe processing device of the present invention;

[0035] Figure 3 This is a schematic diagram of the internal structure of the cooling bin of the present invention;

[0036] Figure 4 This is a schematic diagram of the structure of a single spray pipe of the present invention;

[0037] Figure 5 This is a schematic diagram of the annular water pipe structure of the present invention;

[0038] Figure 6 It is a schematic diagram of the supporting mechanism structure of the present invention;

[0039] Figure 7 It is a schematic diagram of the structure of the spray mechanism of the present invention;

[0040] Figure 8 This is a schematic diagram of the structure behind the gear of the spray mechanism of the present invention;

[0041] Fig. 9 It is a schematic diagram of the overall structure of the spray mechanism and the support mechanism of the present invention;

[0042] In the figure:

[0043] 1. Support frame;

[0044] 2. Sink;

[0045] 3. Water tank;

[0046] 4. Water pump;

[0047] 5. Cooling chamber;

[0048] 6. Support rod;

[0049] 7. annular water pipe; 71. threaded groove; 72. inner water pipe;

[0050] 8. Motor;

[0051] 9. Inlet port;

[0052] 10. Support mechanism; 101. Shell 1; 102. Fixed shaft; 1021. Circular pipe; 1022. Groove; 103. Support wheel; 104. Wheel; 1041. Hollow; 1042. Interface; 105. Grinding wheel;

[0053] 11. Spray mechanism; 110. Shell 2; 1101. Mounting groove; 111. Fixed rod; 112. Limit block; 113. Moving rod; 1131. Circular connecting groove; 1132. Through port; 114. Conduit; 115. Spray head; 116. Rocker; 117. Disc; 118. Speed ​​change wheel; 119. Big gear; DETAILED DESCRIPTION

[0054] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0055] See also Figures 1 to 9 The present invention provides a double-wall corrugated pipe processing device, and the technical solution is as follows:

[0056] As an embodiment of the present invention, reference Figure 1 to Figure 2 A double-wall corrugated pipe processing device comprises a support frame 1, a water tank 2, a water tank 3, a water pump 4, a cooling bin 5, a support rod 6, an annular water pipe 7, a motor 8, a pipe inlet 9, a support mechanism 10 and a spray mechanism 11. The water tank 2 is fixedly connected to the top of the support frame 1, the water tank 3 is fixedly installed on the lower side of the water tank 2, the water pump 4 is fixedly installed at one end of the water tank 3, the cooling bin 5 is fixedly connected to the upper side of the water tank 2, the support rod 6 is fixedly connected in the cooling bin 5, the support rod 6 is arranged in a circle and runs through the entire cooling bin 5, a plurality of annular water pipes 7 are evenly fixedly connected to the support rod 6 and are perpendicular to the support rod 6, the pipe inlet 9 is opened on the side of the cooling bin 5, the support mechanism 10 is fixedly installed on the annular water pipe 7, the spray mechanism 11 is installed on the support mechanism 10, and the motor 8 is installed on the surface of the cooling bin 5. The support mechanism 10 moves and rotates with the double-wall corrugated pipe, driving the spray mechanism 11 to move up and down, so that the distance between the lower end of the spray mechanism 11 and the surface of the double-wall corrugated pipe is always consistent.

[0057] As an embodiment of the present invention, reference Figures 1 to 5, 8 support rods 6 are welded to the inner wall of the cooling bin 5 and are evenly arranged in a circle, running through the entire cooling bin 5. The support rods 6 are made of rigid material and coated with anti-corrosion material on the surface. While providing sufficient supporting force for the support mechanism 10, they will not be corroded due to long-term contact with the coolant. Multiple annular water pipes 7 are evenly arranged linearly and installed on the support rods 6. The annular water pipes 7 are made of rigid material and are hollow inside. The surface is also coated with anti-corrosion material. Threaded grooves 71 are provided at both ends of the outer side of the annular water pipe 7 to facilitate the coordination with the spray mechanism 11 and the support mechanism 10, as well as to facilitate the installation, disassembly and replacement of the spray mechanism 11 and the support mechanism 10. An inner water pipe 72 is provided in the hollow position inside the annular water pipe 7, which passes into the spray mechanism 11 and is connected to the spray mechanism 11 to provide coolant for the spray mechanism 11. The support mechanism 10 and the spray mechanism 11 are arranged in a circular array on the annular water pipe 7, and are staggered front to back, which can increase the contact area between the support mechanism 10 and the double-walled corrugated pipe, and at the same time make the spray mechanism 11 spray the double-walled corrugated pipe more uniformly and have a better cooling effect.

[0058] As an embodiment of the present invention, reference Figure 6The supporting mechanism 10 includes a housing 101, a fixed shaft 102, a supporting wheel 103, a wheel disc 104, and a grinding wheel 105. The fixed shaft 102 is fixedly connected to the inner side of the housing 101, and the outer side of the housing 101 is threadedly connected to the annular water pipe 7. A circular pipe 1021 is provided in the middle of the fixed shaft 102 and overlaps with the annular water pipe 7, and a groove 1022 is provided on the surface. The supporting wheel 103 is rotatably connected to the groove 1022 of the fixed shaft 102 to prevent the fixed shaft 102 from deflecting, and the supporting wheel The number of teeth 103 should be 4 to 8, the length of the teeth of the support wheel 103 is a, the radius of the wheel disc 104 is b, and the length of the double-walled corrugated pipe is c, then a+b>c, the wheel disc 104 is hinged at the end of the teeth of the support wheel 103, the two outer sides of the wheel disc 104 are provided with hollows 1041, and the inner side is provided with a connection port 1042, the diameter of the wheel disc 104 is slightly smaller than the diameter of the semicircular surface of the crest and trough of the double-walled corrugated pipe, and the radius of the grinding wheel 105 is slightly larger than the horizontal distance from the center of the grinding wheel 105 to the side of the wheel disc 104. The grinding wheel 105 is rotatably connected to the wheel disc 104 through the interface 1042, and is arranged in a circle. There is a gap between the side wall of the grinding wheel 105 and the wheel disc 104. The number of grinding wheels 105 is 5 to 8, and they do not contact each other. The grinding wheel 105 is made of silicon carbide material with a mesh size of 150 to 400. When the double-walled corrugated pipe moves forward, because the length of the support wheel 103 plus the radius of the wheel disc 104 is greater than the length of the double-walled corrugated pipe from the crest to the trough, the double-walled corrugated pipe does not contact the shell 101 at this time, because the diameter of the wheel disc 104 is slightly smaller than the radius of the crest and trough of the double-walled corrugated pipe, and the radius of the grinding wheel 105 is slightly greater than the distance from the grinding wheel 105 to the edge of the wheel disc 104, so when the grinding wheel 105 moves forward with the double-walled corrugated pipe When the surface of the grinding wheel 105 is always in contact with the double-walled corrugated pipe, the contact area is increased, the pressure is reduced, and the burrs on the surface of the double-walled corrugated pipe are pre-cleared. At the same time, the grinding wheel 105 increases the friction force to prevent slipping, prevent scratches on the surface of the double-walled corrugated pipe, and avoid the impact of slipping on the spray mechanism 11. At the same time, a hollow 1041 is opened on the side of the wheel 104. When the wheel 104 moves to the bottom of the double-walled corrugated pipe, the coolant sprayed by the spray mechanism 11 will pass through the hollow 1041 on the surface of the wheel 104 to wash and cool the inside of the wheel 104 and the surface of the inner side of the wheel 104 when the grinding wheel 105 is turned to the wheel 104. The mesh number of the grinding wheel 105 is selected from 150 to 400 to avoid scratches on the surface of the double-walled corrugated pipe with a higher temperature due to too high a mesh number. At the same time, the advantage of using silicon carbide material is that it is resistant to high temperature and wear, which is suitable for this solution.

[0059] As an embodiment of the present invention, reference Figure 7 and Figure 8The spray mechanism 11 includes a shell 110, a fixed rod 111, a limit block 112, a movable rod 113, a conduit 114, a nozzle 115, a rocker 116, a disc 117, a speed wheel 118, and a large gear 119. The outer side of the shell 110 is provided with a mounting groove 1101 connected to the annular water pipe 7. The fixing rod 111 is welded to the inner wall of the second shell 110, and the end is hinged to the speed wheel 118. One side of the large gear 119 is fixedly connected to the support wheel 103 and meshes with the speed wheel 118. The ratio of the number of teeth of the large gear 119 to the speed wheel 118 is equal to the number of teeth of the support wheel 103. When the double-walled corrugated pipe passes through a wave crest of the support wheel 103, it will drive the support wheel 103 to rotate an angle of one-tenth of the number of teeth of the support wheel 103, and the large gear 119 will rotate the same angle. At this time, the speed wheel 118 will rotate one circle. A disk 117 is fixedly installed on the side of the speed wheel 118 away from the large gear 119. The rocker 116 is hinged at the eccentric position of the disk 117. The distance from the eccentric position of the disk 117 to the axial position is equal to 1 / 2 of the distance between the wave crest and the wave trough of the double-walled corrugated pipe. When one tooth of the support wheel 103 is at the trough surface, the rocker 116 is at the lowest end at the eccentric position connected to the disc 117, and the axes of the moving rod 113 and the support wheel 103 are in the same vertical plane. One end of the moving rod 113 is hinged to the end of the rocker 116 away from the disc 117. A circular connecting groove 1131 is provided at the lower end of the moving rod 113, and a through hole 1132 is provided on the side. The conduit 114 is connected to the moving rod 113 through the circular connecting groove 1131. The inner water pipe 72 passes through the through hole 1132, and a branch is connected to the conduit 114 at the lower end. The nozzle 115 is fixedly connected to the conduit 114. The nozzle 115 is a spherical nozzle, and a plurality of water spray holes are evenly distributed on the surface of the nozzle 115 to keep the two walls and the trough of the double-wall corrugated pipe sprayed evenly. At this time, the number of teeth of the support wheel 103 is set to 4. When a wave crest of the double-wall corrugated pipe passes through the support mechanism 10, it will sometimes drive the support wheel 103 to rotate 90 degrees. Because the support wheel 103 is fixedly connected to the large gear 119, the large gear 119 rotates at the same angle. At this time, the gear ratio of the speed change wheel 118 and the large gear 119 is 4:1. Therefore, at this time, the speed change wheel 118 rotates one circle, and the disc 117 fixedly connected to the speed change wheel 118 also rotates one circle, driving one end of the rocker 116 to rotate one circle. Because the moving rod 113 is limited by the limit block 112, it moves up and down once. Because when one tooth of the support wheel 103 is at the trough surface, the rocker 116 is at the lowest end at the eccentric position connected to the disk 117. Therefore, when the trough moves to just below the support mechanism 10 and the spray mechanism 11, the nozzle 115 also moves to the lowest point to spray the trough and both walls of the double-walled corrugated pipe. The whole process can be completed by the double-walled corrugated pipe, which enhances the degree of automation of the cooling device. At the same time, the mechanical structure is adopted. Compared with the method of driving the nozzle up and down by a motor, it not only greatly improves the accuracy and is not prone to deviation, but also saves costs.

[0060] As an embodiment of the present invention, reference Fig. 9 When the disc 104 and the grinding wheel 105 move to the lowest end, the center lines of the support wheel 103, the moving rod 113, and the nozzle 115 are in the same vertical plane, and the center axis of the nozzle 115 and the disc 104 also coincide with each other in the horizontal direction. At this time, the nozzle 115 is equidistant from the valley surface and the two side walls of the double-walled corrugated pipe, and the coolant will be evenly sprayed on the valley and the two side walls to cool the double-walled corrugated pipe. At the same time, the coolant perpendicular to the movement direction of the double-walled corrugated pipe will cool the support wheel 103 and the disc 104, and at the same time, it will be sprayed into the inside of the disc 104 through the hollow 1041 on the disc 104 to rinse and cool the surface of the grinding wheel 105 that has rotated to the inside.

[0061] Working process: In order to solve the problem that the cooling water flow rate in some parts of the double-wall corrugated pipe is too small, making the inner wall of some parts of the double-wall corrugated pipe uneven, when the double-wall corrugated pipe is extruded, it enters the cooling chamber 5 through the pipe inlet 9, and the wave crest drives the support wheel 103 to rotate, and the support wheel 103 drives the large gear 119 to rotate. The large gear 119 drives the moving rod 113 and the guide tube 114 to move up and down through the speed change wheel 118 and the disc 117, so that the nozzle 115 moves up and down with the movement of the double-wall corrugated pipe, and always keeps a consistent distance from the surface of the double-wall corrugated pipe, so as to spray and cool the double-wall corrugated pipe.

[0062] Specifically, when the double-wall corrugated pipe is extruded, it moves forward along the pipe inlet 9, referring to Fig. 9When the wave crest contacts the grinding wheel 105 at the end of the support wheel 103, the grinding wheel 105 will move forward with the wave crest, and the grinding wheel 105 will roll downward along the side wall to remove the burrs on the surface of the double-wall corrugated pipe. In this process, the grinding wheel 105 will also drive the support wheel 103 to rotate. The large gear 119 is fixedly connected to one side of the support wheel 103 and will rotate at the same angle as the support wheel 103. The ratio of the number of teeth of the large gear 119 and the speed wheel 118 is equal to the number of teeth of the support wheel 103. Therefore, when a wave crest passes, the speed wheel 118 rotates one circle, the disc 117 is fixedly connected to the speed wheel 118, and the disc 117 will rotate one circle with the speed wheel 118. One end of the rocker 116 is installed at the eccentric position of the disc 117 The guide tube 114 and the nozzle 115 are fixed at the end of the moving rod 113. Because when one tooth of the supporting wheel 103 is at the trough surface, the eccentric position of the rocking arm 116 connected to the disc 117 is at the lowest end, and the axes of the moving rod 113 and the supporting wheel 103 are in the same vertical plane. Therefore, when the wheel disc 104 and the grinding wheel 105 reach the trough surface of the double-walled corrugated pipe, the nozzle 115 also reaches the lowest end. At this time, the coolant sprayed by the nozzle 115 will cool down the trough and side wall of the double-walled corrugated pipe. At the same time, the wheel disc 104 and the grinding wheel 105 on the side of the nozzle 115 will also be cooled.

[0063] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected, and the scope of the present invention to be protected is defined by the attached claims and their equivalents.

Claims

1. A double-wall corrugated pipe processing device, comprising a support frame (1), a water tank (2), a water tank (3), a water pump (4), a cooling chamber (5), a support rod (6), an annular water pipe (7), a motor (8), and a pipe inlet (9), characterized in that: It also includes a support mechanism (10) and a spray mechanism (11), wherein the water tank (2) is fixedly connected to the top of the support frame (1), the water tank (3) is fixedly connected to the bottom of the water tank (2), the water pump (4) is fixedly installed at one end of the water tank (3), the cooling bin (5) is fixedly connected to the top of the water tank (2), the support rod (6) is fixedly connected in the cooling bin (5), the support rod (6) is arranged in a circle and runs through the entire cooling bin (5), a plurality of annular water pipes (7) are evenly fixedly connected to the support rod (6) and are perpendicular to the support rod (6), the pipe inlet (9) is opened on the side of the cooling bin (5), the support mechanism (10) is installed on the annular water pipe (7), the spray mechanism (11) is installed on the support mechanism (10), the motor (8) is installed on the surface of the cooling bin (5), and the support mechanism (10) moves and rotates with the double-wall corrugated pipe, driving the spray mechanism (11) to move up and down.

2. A double-wall corrugated pipe processing device according to claim 1, characterized in that: The support mechanism (10) comprises a housing (101), a fixed shaft (102), a support wheel (103), a wheel disc (104), and a grinding wheel (105); the outer side of the housing (101) is fixedly connected to the annular water pipe (7); the fixed shaft (102) is fixedly connected to the inner side of the housing (101); the support wheel (103) is rotatably connected to the fixed shaft (102); the wheel disc (104) is rotatably connected to the end of the gear teeth of the support wheel (103); and the grinding wheel (105) is rotatably mounted at an eccentric position of the wheel disc (104) and is evenly arranged in a circle.

3. A double-wall corrugated pipe processing device according to claim 2, characterized in that: The spray mechanism (11) comprises a second shell (110), a fixed rod (111), a limit block (112), a movable rod (113), a conduit (114), a spray head (115), a rocker (116), a disc (117), a speed change wheel (118), and a large gear (119). The outer side of the second shell (110) is fixedly connected to the annular water pipe (7). The fixed rod (111) is fixedly connected to the inner wall of the second shell (110). The two limit blocks (112) are symmetrically fixedly installed on the inner side of the second shell (110). The speed change wheel (118) is rotatably connected to the end of the fixed rod (111). The disc (117) is fixedly connected to the inner wall of the second shell (110). 17) is fixedly connected to one side of the speed change wheel (118), one end of the rocker (116) is rotatably connected to the eccentric position of the disc (117), one end of the moving rod (113) is rotatably connected to the end of the rocker (116) away from the disc (117), and both sides are slidably connected to two limit blocks (112), the conduit (114) is fixedly connected to the other end of the moving rod (113), the nozzle (115) is fixedly connected to the end of the conduit (114), and the large gear (119) is rotatably connected to the fixed shaft (102), and is fixedly connected to the support wheel (103), and meshes with the speed change wheel (118).

4. A double-wall corrugated pipe processing device according to claim 3, characterized in that: The diameter of the wheel disc (104) is slightly smaller than the diameter of the semicircular surface of the wave crest and wave trough of the double-wall corrugated pipe, and the radius of the grinding wheel (105) is slightly larger than the horizontal distance from the center of the grinding wheel (105) to the side of the wheel disc (104).

5. The double-wall corrugated pipe processing device according to claim 3, characterized in that: The two side surfaces of the wheel disc (104) are hollowed out (1041), and there is a certain gap between the inner walls on both sides and the grinding wheel (105).

6. A double-wall corrugated pipe processing device according to claim 3, characterized in that: When the nozzle (115) reaches the lowermost end, the distance from the nozzle (115) to the trough surface of the double-walled corrugated pipe is equal to the distance from the central axis of the wheel disc (104) to the trough surface of the double-walled corrugated pipe.

7. The double-wall corrugated pipe processing device according to claim 1, characterized in that: The support mechanism (10) and the spray mechanism (11) are evenly installed on the annular water pipe (7) in a circumferential arrangement and are staggered in the front and rear.

8. The double-wall corrugated pipe processing device according to claim 3, characterized in that: The nozzle (115) is a spherical nozzle, and water spray holes are evenly distributed on the outer side of the spherical nozzle.

9. A double-wall corrugated pipe processing device according to claim 3, characterized in that: The supporting wheel (103), the wheel disc (104), and the grinding wheel (105) are all made of materials that are resistant to high temperatures and are not easily deformed under high temperature conditions.

10. The double-wall corrugated pipe processing device according to claim 3, characterized in that: The center lines of the support wheel (103), the moving rod (113) and the spray head (115) are in the same vertical plane.

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