Rapid forming device for environment-friendly double-wall corrugated pipe

Abstract

The utility model discloses a rapid forming device for an environment-friendly double-wall corrugated pipe, and relates to the technical field of pipe forming, the rapid forming device comprises a rack and an extruder body, the rack is provided with a forming mold corresponding to the end, close to the rack, of the extruder body, and the forming mold comprises half molds located on the two sides of the rack; a driving assembly for driving the half molds to be close to and closed is arranged on the side, away from each other, of the rack, forming grooves for forming the outer wall of the corrugated pipe are formed in the sides, close to each other, of the half molds, through grooves for cooling liquid to flow are formed in the half molds, and a cooling box is arranged on the rack. A liquid inlet and a liquid outlet of the through groove are connected with condensation pipes connected with the cooling box, a pump for conveying cooling liquid is arranged in the cooling box, the half dies are synchronously driven by the driving assembly to get close to each other to conduct extrusion forming on the corrugated pipe, meanwhile, the corrugated pipe is cooled, and the corrugated pipe is directly cooled and shaped after being subjected to extrusion forming. And the forming efficiency of the double-wall corrugated pipe is improved.

Description

Technical Field

[0001] This application relates to the field of pipe forming technology, and in particular to a rapid forming device for an environmentally friendly double-wall corrugated pipe. Background Technology

[0002] Double-wall corrugated pipe is a new type of pipe with a ring-shaped outer wall and a smooth inner wall. As a new type of energy-saving lightweight pipe, it has advantages such as low specific gravity, low cost, resistance to external pressure, high strength, long service life, and convenient installation. Currently, plastic double-wall corrugated pipes are mainly used in municipal construction for underground drainage and sewage, rainwater collection, agricultural irrigation and drainage, and industrial wastewater discharge.

[0003] Currently, the production process for double-wall corrugated pipes involves extruding the pipes using an extruder and then pressing them with a die. After the double-wall corrugated pipes are removed from the die, they are cooled by a fan to allow them to cool and solidify.

[0004] Regarding the aforementioned technologies, the inventors believe that the existing cooling method involves using a fan to cool the double-walled corrugated pipe after it has been formed. This cooling method is slow, and the corrugated pipe will deform after leaving the mold. Utility Model Content

[0005] The purpose of this application is to provide an environmentally friendly rapid prototyping device for double-wall corrugated pipes, in order to improve the problem that the cooling speed is slow when using a fan to cool the double-wall corrugated pipes after molding, and the corrugated pipes will deform after leaving the mold.

[0006] This application provides a rapid prototyping device for an environmentally friendly double-wall corrugated pipe, which adopts the following technical solution:

[0007] An environmentally friendly rapid prototyping device for double-wall corrugated pipes includes a frame and an extruder body. The frame is provided with a forming die. One end of the extruder body near the frame corresponds to the forming die. The forming die includes half-die segments located on both sides of the frame. The frame is provided with a drive assembly on the side of the half-die segments that is far apart from each other, which drives the half-die segments to close. A forming groove is provided on the side of the half-die segments that is close together, which forms the outer wall of the corrugated pipe. A through-channel for supplying coolant is provided in the half-die segments. The inlet and outlet of the through-channel are connected to a condenser pipe. A cooling tank containing coolant is provided on the frame and connected to the condenser pipe. A pump is provided in the cooling tank to supply coolant to the condenser pipe at the inlet of the through-channel.

[0008] By adopting the above technical solution, a drive assembly is installed on the frame to synchronously drive the semi-dies to approach and close together to form a forming die. The forming die extrudes the corrugated tube from the extruder body, causing the outer wall of the corrugated tube to be formed in the forming groove of the semi-dies. Subsequently, the drive assembly drives the semi-dies to open, and the extruder body continues to extrude the corrugated tube. The drive assembly continues to drive the semi-dies to approach each other to extrude and form the newly extruded corrugated tube section. The through groove in the semi-dies is connected to the cooling box on the frame through a condenser pipe. The pump in the cooling box pumps coolant into the through groove of the semi-dies through the condenser pipe to cool the semi-dies, thereby cooling the double-wall corrugated tube extruded and formed in the forming die formed by the semi-dies, allowing the corrugated tube to cool and form quickly. The waste liquid is transported back to the cooling box through the outlet of the through groove to cool the coolant again, continuously cooling the semi-dies, thus improving the cooling efficiency of the double-wall corrugated tube.

[0009] Optionally, the drive assembly includes movable frames located on both sides of the frame and slidably connected to the frame, with the side of the movable frames that is close to each other connected to the semi-mold, and drive components that drive the movable frames to move closer to each other synchronously are provided on both sides of the frame.

[0010] By adopting the above technical solution, the moving frame of the drive component is slidably connected to both sides of the frame and connected to the half mold. The drive component is installed on both sides of the frame away from the moving frame. The drive component synchronously drives the moving frames to move closer to each other, preventing the bellows from being skewed and deformed due to inconsistent speeds of the half molds after the bellows are extruded, thus preventing the bellows from being damaged.

[0011] Optionally, the movable frame is provided with a limiting block connected to the half mold, and a connecting block is provided on the side of the half mold near the movable frame. The connecting block has a connecting groove that fits with the limiting block, and limiting grooves are provided on both sides of the limiting block. A protrusion that fits with the limiting groove is provided on the inner side wall of the connecting groove.

[0012] By adopting the above technical solution, the limiting block is connected to the moving frame. The half mold is connected to the moving frame through the connecting groove on the connecting block on the side of the half mold near the moving frame. The half mold is limited by a protrusion on the inner wall of the connecting groove and limiting grooves that fit the protrusion on both sides of the limiting block. This prevents the half mold from detaching from the moving frame when the corrugated pipe is squeezed, thus preventing the corrugated pipe from deforming.

[0013] Optionally, the connecting block has positioning holes at both ends that communicate with the limiting block, and a limiting rod for fixing the connecting block and the limiting block is inserted into the positioning holes.

[0014] By adopting the above technical solution, positioning holes communicating with the limiting block are opened at both ends of the connecting block. The limiting rod is inserted into the positioning hole to fix the half mold and the moving frame, preventing the half mold from detaching from the limiting block when it moves with the moving frame, thus preventing damage to the corrugated pipe and the forming device.

[0015] Optionally, a limiting plate is provided at the end of the movable frame away from the semi-mold, and a positioning groove that fits into the limiting plate is provided at the end of the semi-mold near the limiting plate.

[0016] By adopting the above technical solution, a limiting plate is extended at the end of the movable frame away from the half mold, and a positioning groove is opened at the end of the half mold close to the limiting plate to fit the limiting plate, so as to further fix the half mold and further reduce the possibility of the half mold separating from the movable frame.

[0017] Optionally, the closed end of the half mold located on one side of the frame is provided with a second protrusion, and the closed end of the half mold located on the other side of the frame is provided with a groove that fits with the second protrusion.

[0018] By adopting the above technical solution, a second protrusion is provided at the closed end of the half mold on one side of the frame, and a groove that fits with the second protrusion is provided at the closed end of the half mold on the other side of the frame. When the driving component drives the half molds to approach each other, the position of the half mold is determined by the second protrusion and the groove on the half mold, reducing the possibility of the outer wall of the corrugated pipe being disordered when the half molds on both sides of the frame are misaligned.

[0019] Optionally, the through-slot is arranged around the half-mold.

[0020] By adopting the above technical solution, the through grooves opened in the half mold are arranged around it, which increases the contact area between the half mold and the coolant in the through grooves, improves the cooling efficiency of the half mold, and allows the half molds to move closer to each other under the drive of the drive component to extrude the bellows and form it, so that the bellows can be cooled quickly.

[0021] Optionally, a support frame is provided at the end of the frame away from the extruder, and the support frame is rotatably connected to rollers that support the formed corrugated pipe.

[0022] By adopting the above technical solution, a support frame is set at the end of the frame away from the extruder body. The double-walled corrugated pipe is supported by rollers rotatably connected on the support frame, which prevents the corrugated pipe from being too long and causing bending and deformation of the newly extruded corrugated pipe from the extruder body, thus preventing damage to the corrugated pipe.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. The moving frame of the drive assembly is slidably connected to both sides of the frame and connected to the half mold. The drive unit is installed on the two sides of the frame away from the moving frame. The drive unit synchronously drives the moving frames to move closer to each other to prevent the bellows from being skewed and deformed due to inconsistent speeds of the half molds after the bellows are extruded, which could damage the bellows. When the drive unit drives the half molds to move closer to each other, the protrusions and grooves on the half molds determine the position of the half molds, reducing the possibility of misalignment of the outer wall of the bellows extrusion forming when the half molds on both sides of the frame are misaligned.

[0025] 2. Connect the limiting block to the moving frame. The half mold is connected to the moving frame through the connecting groove on the connecting block located on the side of the half mold closest to the moving frame. A protrusion is provided on the inner wall of the connecting groove, and limiting grooves are provided on both sides of the limiting block to fit the protrusion. This limits the half mold and prevents it from detaching from the moving frame when the corrugated pipe is being extruded, thus preventing deformation of the corrugated pipe. Positioning holes communicating with the limiting block are provided at both ends of the connecting block. The limiting rod is inserted into the positioning holes to fix the half mold to the moving frame and prevent the half mold from detaching from the limiting block when it moves with the moving frame, thus preventing damage to the corrugated pipe and the forming device.

[0026] 3. A channel for receiving coolant is opened in the semi-mold, and the channel is connected to the condenser pipe of the cooling box. The coolant flowing in the channel cools the semi-mold and cools the double-walled corrugated pipe extruded in the forming mold composed of the semi-mold, thus accelerating the cooling and shaping of the corrugated pipe. The waste liquid is transported back to the cooling box through the outlet of the channel to cool the coolant again, continuously cooling the semi-mold and improving the forming efficiency of the double-walled corrugated pipe. Attached Figure Description

[0027] Figure 1 This is an overall schematic diagram of a rapid prototyping device for environmentally friendly double-wall corrugated pipes;

[0028] Figure 2 This is a partial cross-sectional view of the molding die in the embodiment;

[0029] Figure 3 yes Figure 2 A magnified view of part A in the middle.

[0030] In the diagram, 1 is the frame; 11 is the support frame; 12 is the roller; 2 is the extruder body; 3 is the forming die; 31 is the half-die; 311 is the forming groove; 312 is the positioning groove one; 313 is the protrusion two; 314 is the groove; 315 is the through groove; 32 is the connecting block; 321 is the connecting groove; 322 is the protrusion one; 323 is the positioning hole; 33 is the limiting rod; 34 is the condenser pipe; 35 is the cooling box; 4 is the drive assembly; 41 is the moving frame; 411 is the limiting block; 412 is the limiting groove; 413 is the limiting plate; and 42 is the drive component. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1 - Appendix Figure 3 This application will be described in further detail below.

[0032] A rapid prototyping device for environmentally friendly double-wall corrugated pipes, referring to Figure 1 The system includes a frame 1. Above the frame 1, the movable frame 41 of the drive assembly 4 is slidably connected to the frame 1 via guide rails and sliders, allowing the movable frames 41 on both sides of the frame 1 to approach each other via guide rails and sliders. The half mold 31 of the forming mold 3 is connected to the movable frame 41. A drive component 42 is fixed to the frame 1 with bolts. The drive component 42 is a hydraulic cylinder connected to a power source. The drive rod of the hydraulic cylinder is connected to the movable frame 41 via bolts. The hydraulic cylinders on both sides of the frame 1 synchronously drive the movable frames 41 on both sides of the frame 1 to approach each other, causing the half molds 31 on the movable frames 41 to approach and close. An extruder body 2 is installed at one end of the frame 1. The end of the extruder body 2 near the frame 1 is adapted to the cavity formed by the closed half molds 31. The bellows is extruded by the closed half molds 31 on both sides approaching each other.

[0033] Reference Figure 2 and Figure 3 An integrally formed connecting block 32 is connected below the semi-mold 31. An integrally formed limiting block 411 is provided on the movable frame 41. A connecting groove 321 that fits the limiting block 411 is provided on the connecting block 32 to determine the installation position of the semi-mold 31. Limiting grooves 412 are provided on both sides of the limiting block 411. A protrusion 322 integrally formed with the connecting block 32 and fits the limiting groove 412 is provided on the inner wall of the connecting groove 321 to limit the semi-mold 31 and prevent the semi-mold 31 from detaching from the movable frame 41. An integrally formed limiting plate 413 is connected to the extension of the movable frame 41 away from the semi-mold 31. A positioning groove 312 that fits the limiting plate 413 is provided on the side of the semi-mold 31 on both sides of the frame 1 that is far away from each other to further limit the position of the semi-mold 31 and prevent the semi-mold 31 from detaching from the movable frame 41 during the production of corrugated pipes.

[0034] Reference Figure 2 and Figure 3Positioning holes 323 communicating with limiting blocks 411 are provided at both ends of the connecting block 32. The metal limiting rod 33 is inserted into the positioning holes 323 to fix the connecting block 32 and the limiting block 411, and to fix the half mold 31 and the moving frame 41. A forming groove 311 for forming the outer wall of the corrugated pipe is provided on the side of the half mold 31 that is close to each other. When the half mold 31 is close to each other and closed, the corrugated pipe extruded by the extruder body 2 is squeezed and formed under the action of the forming groove 311 of the half mold 31. An integrally formed metal protrusion 313 is provided at the closed end of the half mold 31 located on one side of the frame 1. A groove 314 that fits with the protrusion 313 is provided at the closed end of the half mold 31 located on the other side of the frame 1. When the half mold 31 is driven by the driving member 42 and closes to each other, the possibility of the half mold 31 on both sides of the frame 1 being misaligned and the outer wall of the corrugated pipe being formed incorrectly is reduced.

[0035] Reference Figure 1 and Figure 2 A channel 315 for supplying coolant flow is provided in the half-mold 31. The channel 315 surrounds the half-mold 31, increasing the contact area between the half-mold 31 and the coolant in the channel 315, thus enabling rapid cooling of the half-mold 31. The inlet and outlet of the channel 315 are sealed to a retractable condenser tube 34. A cooling box 35 connected to a power source is bolted to the frame 1, and the condenser tube 34 is sealed to the cooling box 35. A pump (not shown in the figure) installed in the cooling box 35 and connected to a power source supplies coolant to the half-mold 31 through the condenser tube 34. Coolant is supplied to the mold 31 to cool the semi-mold 31, so that the corrugated tube extruded in the semi-mold 31 can be quickly cooled and shaped after forming. A support frame 11 is welded to the end of the frame 1 away from the extruder body 2. Rollers 12 are rotatably connected to the support frame 11 through bearings and a rotating shaft. The formed double-wall corrugated tube is supported by the rollers 12. After the corrugated tube is extruded by the extruder body 2, the formed corrugated tube is pushed away from the frame 1 by the rollers 12 of the support frame 11. The forming mold 3, which is composed of the semi-mold 31, extrudes and shapes the newly extruded corrugated tube.

[0036] The implementation principle of this application embodiment is as follows:

[0037] The semi-mold 31 is fixed on the moving frame 41. After the extruder body 2 extrudes the corrugated pipe, the drive components 42 on both sides of the frame 1 synchronously drive the moving frame 41 to move closer to each other, so that the semi-mold 31 fixed on the moving frame 41 moves closer to each other and closes, squeezing the outer wall of the newly extruded corrugated pipe, so that the outer wall of the corrugated pipe contacts the forming groove 311 of the semi-mold 31, and the outer wall of the corrugated pipe is squeezed and formed. Then, the cooling box 35 pumps coolant through the condenser pipe 34 to the liquid inlet of the through groove 315 of the semi-mold 31, so that the coolant is cooled and condensed. Cooling liquid fills the channel 315, cooling the semi-die 31 and cooling and shaping the corrugated pipe extruded in the semi-die 31. The waste liquid is then transported back to the cooling tank 35 through the outlet of the channel 315 for re-cooling. Subsequently, the drive unit 42 drives the semi-die 31 away from each other, and the extruder body 2 continues to extrude the corrugated pipe. The formed part of the corrugated pipe is transported to the end away from the extruder body 2 by the rollers 12 on the support frame 11, and the drive unit 42 continues to drive the semi-die 31 to extrude and shape the corrugated pipe. By synchronously driving the semi-die 31 on both sides of the frame 1 to move closer to each other to extrude and shape the corrugated pipe, and simultaneously cooling the corrugated pipe, the corrugated pipe is directly cooled and shaped after extrusion, improving the forming efficiency of the double-wall corrugated pipe.

[0038] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A rapid prototyping device for environmentally friendly double-wall corrugated pipes, comprising a frame (1) and an extruder body (2), characterized in that: The frame (1) is provided with a forming mold (3). The end of the extruder body (2) near the frame (1) corresponds to the forming mold (3). The forming mold (3) includes half molds (31) located on both sides of the frame (1). The frame (1) is provided with a drive assembly (4) for driving the half molds (31) to close together on the side of the half molds (31) that is far apart from each other. The half molds (31) are provided with a forming groove (311) for forming the outer wall of the corrugated pipe on the side of the half molds (31) that is close to each other. A through groove (315) for supplying coolant flow is provided in the half mold (31). The inlet and outlet of the through groove (315) are connected to a condenser pipe (34). The frame (1) is provided with a cooling tank (35) containing coolant connected to the condenser pipe (34). The cooling tank (35) is provided with a pump for supplying coolant to the condenser pipe (34) at the inlet of the through groove (315).

2. The rapid prototyping device for an environmentally friendly double-wall corrugated pipe according to claim 1, characterized in that: The drive assembly (4) includes movable frames (41) located on both sides of the frame (1) and slidably connected to the frame (1). The side of the movable frames (41) that is close to each other is connected to the half mold (31). The frame (1) is provided with drive members (42) on both sides to drive the movable frames (41) to move closer to each other synchronously.

3. The rapid prototyping device for an environmentally friendly double-wall corrugated pipe according to claim 2, characterized in that: The movable frame (41) is provided with a limiting block (411) connected to the half mold (31). The half mold (31) is provided with a connecting block (32) on the side near the movable frame (41). The connecting block (32) has a connecting groove (321) that fits with the limiting block (411). The limiting block (411) has limiting grooves (412) on both sides. The inner wall of the connecting groove (321) is provided with a protrusion (322) that fits with the limiting groove (412).

4. The rapid prototyping device for an environmentally friendly double-wall corrugated pipe according to claim 3, characterized in that: The connecting block (32) has positioning holes (323) at both ends that communicate with the limiting block (411), and a limiting rod (33) for fixing the connecting block (32) and the limiting block (411) is inserted into the positioning hole (323).

5. The rapid prototyping device for an environmentally friendly double-wall corrugated pipe according to claim 3, characterized in that: The movable frame (41) extends away from the half mold (31) and is provided with a limiting plate (413). The half mold (31) is provided with a positioning groove (312) that fits with the limiting plate (413) at the end near the limiting plate (413).

6. The rapid prototyping device for an environmentally friendly double-wall corrugated pipe according to claim 5, characterized in that: The closed end of the half mold (31) located on one side of the frame (1) is provided with a protrusion two (313), and the closed end of the half mold (31) located on the other side of the frame (1) is provided with a groove (314) that fits with the protrusion two (313).

7. The rapid prototyping device for an environmentally friendly double-wall corrugated pipe according to claim 1, characterized in that: The through groove (315) is arranged around the half mold (31).

8. The rapid prototyping device for an environmentally friendly double-wall corrugated pipe according to claim 1, characterized in that: The frame (1) is provided with a support frame (11) at one end away from the extruder body (2), and the support frame (11) is rotatably connected to a roller (12) that supports the formed corrugated pipe.

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