Cooling and shaping assembly of PPR pipe extrusion device

Abstract

The utility model discloses a cooling and shaping assembly of a PPR (polypropylene random) pipe extrusion device, which comprises a cooling shell, two bases which are transversely and symmetrically distributed are arranged at the lower end of the outer side of the cooling shell, and the cooling and shaping assembly further comprises a cooling mechanism; the cooling mechanism comprises annular shells, rotating rings, pipelines, sprayers and supporting assemblies, the annular shells are arranged on the left wall and the right wall of the cooling shell correspondingly, the walls, close to the transverse center of the cooling shell, of the annular shells are rotationally connected with the rotating rings through first large-diameter sealing bearings, and the two symmetrically-distributed pipelines are arranged between the two rotating rings; according to the cooling and shaping assembly of the PPR pipe extrusion device, cooling liquid of the cooling unit is annularly and evenly sprayed to the outer side face of a PPR pipe through the transmission element, the cooling and shaping effect of the device on the PPR pipe is improved by evenly cooling the outer side face of the PPR pipe, meanwhile, the device conducts auxiliary supporting on the passing PPR pipe through the supporting unit, and therefore the cooling effect of the PPR pipe extrusion device is improved. And the probability that the pipe body falls and bends in the cooling and shaping process of the PPR pipe is reduced.

Description

Technical Field

[0001] This utility model relates to the field of PPR pipe production technology, specifically a cooling and shaping component for a PPR pipe extrusion device. Background Technology

[0002] PPR pipe, officially known as random copolymer polypropylene pipe, is the most commonly used water supply pipe in home decoration projects. Compared with traditional cast iron pipes, galvanized steel pipes, and cement pipes, PPR pipes have advantages such as energy saving, material saving, environmental protection, lightweight and high strength, corrosion resistance, smooth inner wall without scaling, simple construction and maintenance, and long service life. During the production process of PPR pipes, molten material is extruded and formed. After extrusion, the PPR pipe is cooled by a cooling device to accelerate its shaping speed. In the prior art, the patent with authorization publication number CN 218928371U discloses a rapid cooling and shaping device for PPR pipes, including a circulating coolant storage tank. A cooling box is fixedly installed inside the circulating coolant storage tank. A conveying component is provided on the front side of the circulating coolant storage tank to facilitate the delivery of coolant during the rapid cooling and shaping of the PPR pipe. A spray head is fixedly installed on the front side of the circulating coolant storage tank through the conveying component. A cooling component is provided on the rear side of the circulating coolant storage tank to facilitate the cooling of the coolant after heat absorption. The sprayed coolant contacts the PPR pipe, cooling and shaping it. After absorbing heat, the coolant re-enters the circulating coolant storage tank, where a cooling component further cools it. This prevents the circulating coolant from overheating, avoiding incomplete cooling and deformation of the PPR pipe. However, during the cooling and shaping process, the coolant sprayed from the nozzle falls from top to bottom onto the outer side of the PPR pipe. The lower outer end of the pipe needs to be cooled by the coolant sliding along its surface. This sliding is irregular, making it impossible to ensure that all parts of the lower outer side of the PPR pipe are covered. There is room for improvement in the cooling and shaping process. Furthermore, the PPR pipe is suspended during the cooling and shaping process, which may cause it to bend under its own weight due to insufficient cooling and shaping. Therefore, we propose a cooling and shaping component for a PPR pipe extrusion device. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a cooling and shaping component for a PPR pipe extrusion device. This device uses a transmission element to make the coolant of the cooling unit sprayed evenly in a ring to the outer surface of the PPR pipe. By uniformly cooling and reducing the temperature of the outer surface of the PPR pipe, the device improves the cooling and shaping effect of the PPR pipe. At the same time, the device uses a support unit to provide auxiliary support for the PPR pipe along the way, reducing the probability of the pipe body sagging and bending during the cooling and shaping process. This can effectively solve the problems in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a cooling and shaping component for a PPR pipe extrusion device, comprising a cooling shell, two laterally symmetrically distributed bases at the lower outer side of the cooling shell, and a cooling mechanism;

[0005] Cooling mechanism: It includes an annular shell, a rotating ring, pipes, nozzles, and support components. The annular shells are respectively set on the left and right walls of the cooling shell. The wall of the annular shell near the transverse center of the cooling shell is rotatably connected to the rotating ring through a large-diameter sealed bearing. Two symmetrically distributed pipes are provided between the two rotating rings. The inner wall of each pipe is provided with evenly distributed nozzles. The left and right ends of the pipes are connected to the adjacent annular shells through through slots opened on the rotating rings. Evenly distributed support components are provided between the two pipes. This device, through a transmission element, causes the coolant of the cooling unit to be sprayed evenly in a ring shape onto the outer surface of the PPR pipe. By uniformly cooling and reducing the temperature of the outer surface of the PPR pipe, the device improves the cooling and shaping effect of the PPR pipe. At the same time, the device provides auxiliary support for the PPR pipe through the support unit, reducing the probability of the pipe sagging and bending during the cooling and shaping process.

[0006] Furthermore, it also includes a control switch, which is located outside the cooling shell. The input terminal of the control switch is electrically connected to an external power source, facilitating the control of the electrical components inside the device.

[0007] Furthermore, a liquid inlet pipe is provided through the right wall of the cooling shell, and the left end of the liquid inlet pipe is connected to the annular shell on the right side. A liquid outlet pipe is provided through the inner arc wall of the cooling shell, so that the coolant can enter the device and exit the device through the pipe.

[0008] Furthermore, the cooling mechanism also includes a drive assembly, which includes an external gear ring, a rotating shaft, a gear, and a low-speed motor. The external gear ring is located outside the rotating ring on the right side. The right wall of the cooling shell is rotatably connected to the gear via the rotating shaft. The gear meshes with the external gear ring. A low-speed motor is located on the right side of the cooling shell. The input end of the low-speed motor is electrically connected to the output end of the control switch. The output shaft of the low-speed motor is fixedly connected to the right end of the rotating shaft, providing power for the cooling unit inside the cooling shaping assembly to rotate in a ring shape.

[0009] Furthermore, the cooling mechanism also includes a separator ring, which is rotatably connected between the rotating ring on the right side and the inner arc wall of the cooling shell via a large-diameter sealed bearing, thereby preventing coolant from spraying onto the gears and the outer gear ring.

[0010] Furthermore, the support assembly includes annular seats, connecting rods, and support rings. The annular seats are evenly distributed on the outside of the pipe, and a support ring is provided between two vertically adjacent annular seats through a connecting rod to support the PPR pipe in the cooling and shaping assembly of the PPR pipe extrusion device.

[0011] Furthermore, the installation groove on the inner arc wall of the cooling shell is provided with an observation window, which facilitates the observation of the cooling and shaping status of the PPR pipe in the cooling and shaping assembly of the PPR pipe extrusion device.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: The cooling and shaping assembly of this PPR pipe extrusion device has the following advantages:

[0013] 1. When using the cooling and shaping component of the PPR pipe extrusion device, the device uses an annular shell, rotating ring, pipe, nozzle and drive component to spray the coolant of the cooling unit evenly in a ring shape onto the outer surface of the PPR pipe. By uniformly cooling and reducing the temperature of the outer surface of the PPR pipe, the device improves the cooling and shaping effect of the PPR pipe.

[0014] 2. When using the cooling and shaping component of the PPR pipe extrusion device, the support component provides auxiliary support for the PPR pipe along the path, reducing the probability of the pipe body sagging and bending during the cooling and shaping process. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0017] Figure 3 This is a schematic diagram of the separator ring structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the support component structure of this utility model;

[0019] Figure 5 This is an enlarged structural diagram of point A in this utility model.

[0020] In the diagram: 1 Cooling shell, 2 Control switch, 3 Inlet pipe, 4 Outlet pipe, 5 Cooling mechanism, 51 Annular shell, 52 Rotating ring, 53 Pipe, 54 Nozzle, 55 Drive assembly, 551 External gear ring, 552 Rotating shaft, 553 Gear, 554 Low-speed motor, 56 Separating ring, 57 Support assembly, 571 Annular seat, 572 Connecting rod, 573 Support ring, 6 Observation window. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-5 This embodiment provides a technical solution: a cooling and shaping component for a PPR pipe extrusion device, including a cooling shell 1, two horizontally symmetrically distributed bases on the lower outer side of the cooling shell 1, and a control switch 2 located outside the cooling shell 1. The input end of the control switch 2 is electrically connected to an external power source. A liquid inlet pipe 3 is provided through the right wall of the cooling shell 1, and the left end of the liquid inlet pipe 3 is connected to an annular shell 51 on the right side. A liquid outlet pipe 4 is provided through the inner arc wall of the cooling shell 1. An observation window 6 is provided in the mounting groove opened in the inner arc wall of the cooling shell 1. When the device is used to cool and shape the extruded PPR pipe, the liquid outlet pipe 4 is first connected to the external high-pressure coolant supply pipe. Then, the PPR pipe passes through the cooling shell 1 from left to right through the external material conveying unit. The observation window 6 facilitates the observation of the cooling and shaping status of the PPR pipe in the device. The device also includes a cooling mechanism 5.

[0023] Cooling mechanism 5 includes an annular shell 51, a rotating ring 52, pipes 53, nozzles 54, and a support assembly 57. The annular shells 51 are respectively disposed on the left and right walls of the cooling shell 1. The wall of the annular shell 51 near the transverse center of the cooling shell 1 is rotatably connected to the rotating ring 52 through a large-diameter sealed bearing. Two symmetrically distributed pipes 53 are provided between the two rotating rings 52. The inner wall of each pipe 53 is provided with evenly distributed nozzles 54. The left and right ends of each pipe 53 are connected to the adjacent annular shell 51 through a through groove opened on the rotating ring 52. Evenly distributed support assemblies 57 are provided between the two pipes 53. Cooling mechanism 5 also includes a drive assembly 55, which includes an external gear ring 551, a rotating shaft 552, a gear 553, and a low-speed motor 551. 54. An external gear ring 551 is located outside the rotating ring 52 on the right side. A gear 553 is rotatably connected to the right wall of the cooling shell 1 via a rotating shaft 552. The gear 553 meshes with the external gear ring 551. A low-speed motor 554 is located on the right side of the cooling shell 1. The input end of the low-speed motor 554 is electrically connected to the output end of the control switch 2. The output shaft of the low-speed motor 554 is fixedly connected to the right end of the rotating shaft 552. The cooling mechanism 5 also includes a partition ring 56. The partition ring 56 is rotatably connected between the rotating ring 52 on the right side and the inner arc wall of the cooling shell 1 via a large-diameter sealed bearing. The support assembly 57 includes an annular seat 571, a connecting rod 572, and a support ring 573. The annular seats 571 are evenly distributed on the outside of the pipe 53. Two vertically adjacent annular seats 571 are connected by a ring 571. Each pipe is connected to a connecting rod 572 and has a support ring 573. Coolant enters the pipe 53 through the external high-pressure coolant supply pipe, inlet pipe 3, right-side annular shell 51, and right-side through groove, and is sprayed out through nozzles 54. The coolant spraying cools the PPR pipe inside the device, thereby cooling and shaping it. At the same time, control switch 2 starts the low-speed motor 554, causing its output shaft to drive the gear 553 to rotate through the rotating shaft 552. The gear 553 meshes with the external gear ring 551, causing the rotating ring 52 on the right side to drive the two pipes 53 to rotate. The pipes 53 drive the corresponding nozzles 54 to rotate synchronously. During the rotation of the nozzles 54, the sprayed coolant evenly covers the outer surface of the PPR pipe in a ring shape, thereby cooling and shaping the outer surface of the PPR pipe. Uniform cooling and temperature reduction improve the cooling and shaping effect. The coolant falling inside the device is discharged through the outlet pipe 4 along the inner wall of the cooling shell 1. The coolant sprayed inside the device is separated by the partition ring 56 to prevent the coolant from interfering with the meshing transmission between the gear 553 and the external gear ring 551. At the same time, the sealed space formed by the partition ring 56, the rotating ring 52, the annular shell 51 and the inner wall of the cooling shell 1 encloses the gear 553 and the external gear ring 551 to prevent external dust and other impurities from interfering with their meshing transmission. During the cooling and shaping process of the PPR tube, the PPR tube passes through the inner ring of the corresponding support ring 573 from left to right (the inner ring opening of the support ring 573 is horizontally aligned with the tube openings at the left and right ends of the cooling shell 1).The support ring 573 contacts the outer side of the PPR pipe, thus providing auxiliary support for the pipe body and preventing it from bending downwards under gravity due to insufficient cooling and shaping during the PPR pipe's cooling and shaping process. Through a transmission element, the coolant from the cooling unit is sprayed evenly in a ring onto the outer surface of the PPR pipe. This uniform cooling of the outer surface improves the cooling and shaping effect of the PPR pipe. Simultaneously, the support unit provides auxiliary support to the PPR pipe along its path, reducing the probability of pipe bending or sagging during the cooling and shaping process.

[0024] The working principle of the cooling and shaping component of the PPR pipe extrusion device provided by this utility model is as follows: When using the device to cool and shape the extruded PPR pipe, firstly, the liquid outlet pipe 4 is connected to the external high-pressure coolant supply pipe. Then, the PPR pipe passes through the cooling shell 1 from left to right through the external conveying unit. The coolant enters the pipe 53 through the external high-pressure coolant supply pipe, the inlet pipe 3, the right-side annular shell 51, and the right-side through-slot, and is sprayed out through the nozzle 54. The cooling liquid spraying cools the PPR pipe in the device, thereby cooling and shaping it. At the same time, the control switch 2 starts the low-speed motor 554, causing its output shaft to drive the gear 553 to rotate through the rotating shaft 552. The gear 553 meshes with the external gear ring 551, causing the right-side rotating ring 52 to drive the two pipes 53 to rotate. The pipes 53 drive the corresponding nozzles 54 to rotate synchronously. During the rotation of the nozzles 54, the sprayed coolant evenly covers the outer side of the PPR pipe in a ring shape. By uniformly cooling the outer side of the PPR pipe, the cooling liquid is improved. To enhance its cooling and shaping effect, the coolant falling inside the device is discharged through the outlet pipe 4 along the inner wall of the cooling shell 1. The coolant sprayed inside the device is separated by the partition ring 56, preventing interference with the meshing transmission between the gear 553 and the external gear ring 551. Simultaneously, the sealed space formed by the partition ring 56, the rotating ring 52, the annular shell 51, and the inner wall of the cooling shell 1 encloses the gear 553 and the external gear ring 551, preventing external dust and other impurities from interfering with their meshing transmission. During the cooling and shaping process of the PPR pipe, the PPR pipe passes through the inner ring of the corresponding support ring 573 from left to right (the inner ring opening of the support ring 573 is horizontally aligned with the pipe openings at both ends of the cooling shell 1). The support ring 573 contacts the outer side of the PPR pipe, thereby providing auxiliary support for the PPR pipe body and preventing it from bending downwards under gravity due to insufficient cooling and shaping during the cooling and shaping process. The observation window 6 facilitates the observation of the cooling and shaping status of the PPR pipe in the device.

[0025] It is worth noting that the low-speed motor 554 disclosed in the above embodiments can be a D140TYD, and the control switch 2 is provided with a control button that corresponds to the low-speed motor 554 and is used to control its switching.

[0026] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A cooling and shaping assembly for a PPR pipe extrusion device, comprising a cooling shell (1), wherein two laterally symmetrically distributed bases are provided at the lower outer side of the cooling shell (1), characterized in that: It also includes a cooling mechanism (5); Cooling mechanism (5): It includes an annular shell (51), a rotating ring (52), pipes (53), nozzles (54) and a support assembly (57). The annular shell (51) is respectively disposed on the left and right walls of the cooling shell (1). The wall of the annular shell (51) near the transverse center of the cooling shell (1) is rotatably connected to the rotating ring (52) through a large-diameter sealed bearing. Two symmetrically distributed pipes (53) are provided between the two rotating rings (52). The inner wall of the pipes (53) is provided with uniformly distributed nozzles (54). The left and right ends of the pipes (53) are connected to the adjacent annular shell (51) through the through grooves opened on the rotating rings (52). A uniformly distributed support assembly (57) is provided between the two pipes (53).

2. The cooling and shaping assembly of a PPR pipe extrusion device according to claim 1, characterized in that: It also includes a control switch (2), which is located outside the cooling shell (1), and the input terminal of the control switch (2) is electrically connected to an external power supply.

3. The cooling and shaping assembly of a PPR pipe extrusion device according to claim 1, characterized in that: The right wall of the cooling shell (1) is provided with a liquid inlet pipe (3), the left end of the liquid inlet pipe (3) is connected to the annular shell (51) on the right side, and the inner arc wall of the cooling shell (1) is provided with a liquid outlet pipe (4).

4. The cooling and shaping assembly of a PPR pipe extrusion device according to claim 2, characterized in that: The cooling mechanism (5) further includes a drive assembly (55), which includes an external gear ring (551), a rotating shaft (552), a gear (553), and a low-speed motor (554). The external gear ring (551) is located on the outside of the rotating ring (52) on the right side. The right wall of the cooling shell (1) is rotatably connected to the gear (553) via the rotating shaft (552). The gear (553) meshes with the external gear ring (551). The right side of the cooling shell (1) is provided with a low-speed motor (554). The input end of the low-speed motor (554) is electrically connected to the output end of the control switch (2). The output shaft of the low-speed motor (554) is fixedly connected to the right end of the rotating shaft (552).

5. The cooling and shaping assembly of a PPR pipe extrusion device according to claim 1, characterized in that: The cooling mechanism (5) also includes a partition ring (56), which is rotatably connected between the rotating ring (52) on the right side and the inner arc wall of the cooling shell (1) via a large-diameter sealed bearing.

6. The cooling and shaping assembly of a PPR pipe extrusion apparatus according to claim 1, characterized in that: The support assembly (57) includes an annular seat (571), a connecting rod (572) and a support ring (573). The annular seats (571) are evenly arranged on the outside of the pipe (53), and a support ring (573) is provided between two vertically adjacent annular seats (571) through the connecting rod (572).

7. The cooling and shaping assembly of a PPR pipe extrusion device according to claim 1, characterized in that: An observation window (6) is provided in the mounting groove opened in the inner arc wall of the cooling shell (1).

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