Anti-cracking PPR pipeline melt extrusion equipment

Abstract

The utility model relates to anti-cracking PPR (polypropylene random copolymer) pipeline melt extrusion equipment, which belongs to the technical field of anti-cracking PPR pipeline melt extrusion equipment and comprises a bottom plate, a machine body is fixed on the top surface of the bottom plate, an extrusion pipe is fixed on the left side of the machine body, and a machine head is mounted on the left side of the extrusion pipe; a cylinder is mounted on the left side of the machine head, a mounting mechanism is arranged on the extrusion pipe, and a cooling mechanism is arranged on the bottom plate; the mounting mechanism comprises a threaded ring which is in threaded connection to the peripheral wall of the extrusion pipe, two connecting rods are fixed to the left side of the threaded ring, limiting rings are fixed to the left ends of the two connecting rods, a plurality of positioning grooves are formed in the left side and the right side of the machine head, and a plurality of positioning blocks are fixed to the left side of the extrusion pipe; a plurality of positioning rods are fixed to the right side of the cylinder. According to the anti-cracking PPR pipeline melt extrusion equipment, the cylinder and the machine head are both installed through the installation mechanism, the machine head and the cylinder can be replaced together during replacement, and it is guaranteed that the size of the machine head and the size of the cylinder are matched.

Description

Technical Field

[0001] This utility model relates to the technical field of anti-cracking PPR pipe melt extrusion equipment, specifically an anti-cracking PPR pipe melt extrusion equipment. Background Technology

[0002] PPR pipes, also known as random copolymer polypropylene pipes, are made using a hot-melt welding method. They have specialized welding and cutting tools, high plasticity, and advantages such as energy and material saving, environmental protection, crack resistance, lightweight and high strength, corrosion resistance, smooth inner wall without scaling, easy construction and maintenance, and long service life. Due to their good crack resistance, they are often used for water supply and drainage pipes in buildings. PPR pipes require an extruder for production.

[0003] For example, Chinese patent (publication number: CN218315105U) discloses a PPR pipe extruder, including a base plate. Multiple filter screens are arranged above the first outer shell. The multiple filter screens are respectively installed in multiple through holes at the top of the cooling box. The inner sides of the two vertical plates are rotatably connected to guide rollers by pins. Through the cooperation between the first pump body, the cooling water jacket and the die head, the pipe is cooled in two stages. The height of the guide rollers can be adjusted according to the height of the external equipment to ensure the shape of the pipe before winding and avoid deformation.

[0004] However, the aforementioned patent has some shortcomings. While the die head can be disassembled and replaced to produce crack-resistant PPR pipes of different diameters through the structure of the plate and insert rod, the cooling water jacket and cylinder are not easy to replace with a suitable size. When the crack-resistant PPR pipe and the cylinder size do not match, the cooling effect on the crack-resistant PPR pipe will be reduced, which is inconvenient to use. Therefore, a crack-resistant PPR pipe melt extrusion device is proposed to solve the above problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a crack-resistant PPR pipe melt extrusion device, which has advantages such as easy cooling effect assurance and solves the problem of inconvenience in replacing the cylinder to ensure cooling effect in the devices disclosed in the aforementioned searched patents.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a crack-resistant PPR pipe melt extrusion device, comprising a base plate, an organic body fixed on the top surface of the base plate, an extrusion pipe fixed on the left side of the machine body, and an organic head installed on the left side of the extrusion pipe;

[0007] A cylinder is installed on the left side of the die head, and the extrusion tube is provided with a mounting mechanism for fixing the die head and the cylinder. A cooling mechanism is provided on the base plate.

[0008] The installation mechanism includes a threaded ring threaded to the outer peripheral wall of the extrusion tube. Two connecting rods are fixed to the left side of the threaded ring, and limit rings are fixed to the left ends of the two connecting rods. Multiple positioning grooves are provided on both the left and right sides of the die head. Multiple positioning blocks are fixed to the left side of the extrusion tube, and multiple positioning rods are fixed to the right side of the cylinder.

[0009] Furthermore, the cooling mechanism includes a spray chamber fixed to the top surface of the base plate. An annular chamber is rotatably connected to the inner right side of the spray chamber. Multiple spray heads are fixed on the inner circumferential wall of the annular chamber. A connecting groove is opened on the right side of the annular chamber. An annular groove communicating with the connecting groove is opened inside the right side wall of the spray chamber. A water pump with its inlet end fixed to the right side of the spray chamber is fixed to the top surface of the base plate. A diverter pipe is fixed to the outlet end of the water pump. A connecting pipe extending to the inside of the annular groove is fixed to the left side of the diverter pipe. A cooling jacket is fixed to the outer circumferential wall of the cylinder. A water supply pipe with one end threadedly connected to the cooling jacket is fixed to the right side of the diverter pipe. A return water pipe with its left end fixed to the right side of the spray chamber is threadedly connected to the back of the cooling jacket.

[0010] Furthermore, a motor is fixed to the left side of the spray chamber, a gear is fixed to the right end of the motor output shaft, and a gear ring that meshes with the gear is fixed to the outer peripheral wall of the annular chamber.

[0011] Furthermore, a threaded groove adapted to the threaded ring is formed on the outer peripheral wall of the extrusion tube, the cylinder has a left and right through limiting ring, the right side of the die head abuts against the extrusion tube, and the left side of the die head does not abut against the cylinder.

[0012] Furthermore, the spray chamber is filled with spraying liquid, and the left and right sides of the spray chamber are provided with material passage holes for the anti-cracking PPR pipe to pass through. A drain pipe is fixed on the front of the spray chamber and a drain valve is fixed on the outer peripheral wall of the drain pipe.

[0013] Furthermore, the connecting groove, the annular groove, and the annular compartment are all circular structures and are located on the same central axis as the cylinder. The cooling jacket is an annular cavity structure, and the water supply pipe and the water return pipe both extend into its cavity.

[0014] Furthermore, threaded holes are provided on the front and rear sides of the cooling jacket for threaded connection of the water supply pipe and the return pipe, and sealing rings are fixed on the outer peripheral walls of the water supply pipe and the return pipe.

[0015] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0016] 1. This crack-resistant PPR pipe melt extrusion equipment, during use, forces the raw material into the extrusion tube through the machine body, and after being shaped by the die head through the extrusion tube, it is extruded. The extruded crack-resistant PPR pipe passes through the cylinder, allowing the cylinder to cool the pipe. Both the cylinder and the die head are installed on the left side of the extrusion tube through an installation mechanism. When replacing, the die head and cylinder can be replaced together to ensure that the two are sized to match, thereby ensuring the cooling effect of the cylinder on the pipe. It is more practical and easier to promote and use.

[0017] 2. In use, the crack-resistant PPR pipe melt extrusion equipment, after the extruded crack-resistant PPR pipe is cooled by the cylinder, extends into the spray chamber. The water pump and other structures in the spray mechanism can spray the spray liquid from multiple angles on the outer wall of the pipe to cool it down, further improving the cooling efficiency. At the same time, the water pump can circulate the spray liquid to the cooling jacket to cool the cylinder, ensuring its cooling effect and further improving the practicality of the device. Attached Figure Description

[0018] Figure 1 This is a front view schematic diagram of the present utility model;

[0019] Figure 2 This is a three-dimensional schematic diagram of the extrusion tube of this utility model;

[0020] Figure 3 This is a front sectional view of the spray chamber of this utility model;

[0021] Figure 4 This is a top view cross-sectional diagram of the cooling jacket of this utility model.

[0022] In the diagram: 1. Base plate, 2. Machine body, 3. Extrusion tube, 4. Die head, 5. Cylinder, 601. Threaded ring, 602. Connecting rod, 603. Limiting ring, 604. Positioning groove, 605. Positioning block, 606. Positioning rod, 701. Spray chamber, 702. Annular chamber, 703. Spray head, 704. Connecting groove, 705. Annular groove, 706. Diverter pipe, 707. Connecting pipe, 708. Cooling jacket, 709. Water supply pipe, 710. Water return pipe, 711. Motor, 712. Gear, 713. Gear ring, 714. Water pump. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1This embodiment of an anti-cracking PPR pipe melt extrusion device includes a base plate 1, an organic body 2 fixed on the top surface of the base plate 1, an extrusion pipe 3 fixed on the left side of the organic body 2, and an organic head 4 installed on the left side of the extrusion pipe 3. In use, the raw material is squeezed into the extrusion pipe 3 through the organic body 2, and then shaped and extruded through the extrusion pipe 3 into the organic head 4. It should be noted that the organic body 2 and the organic head 4 are some components of the extruder, and both belong to a mature and publicly available technology in the prior art. Therefore, their specific structure and working principle will not be described in detail in this article. In addition, the control method of this application is controlled by a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the art. Furthermore, this application is mainly used to protect mechanical devices, so the control method and circuit connection will not be explained in detail in this application.

[0025] A cylinder 5 is installed on the left side of the die head 4. The extrusion tube 3 is equipped with an installation mechanism for fixing the die head 4 and the cylinder 5. The extruded anti-cracking PPR pipe passes through the cylinder 5, so that the cylinder 5 can cool the pipe. Both the cylinder 5 and the die head 4 are installed on the left side of the extrusion tube 3 through the installation mechanism. When replacing, the die head 4 and the cylinder 5 can be replaced together to ensure that the two are compatible in size, thereby ensuring the cooling effect of the cylinder 5 on the pipe. It is more practical and easier to promote and use. A cooling mechanism is provided on the base plate 1.

[0026] Please see Figure 1-2 The installation mechanism includes a threaded ring 601 threaded onto the outer peripheral wall of the extrusion tube 3. Two connecting rods 602 are fixed to the left side of the threaded ring 601, and a limit ring 603 is fixed to the left end of the two connecting rods 602. A threaded groove adapted to the threaded ring 601 is opened on the outer peripheral wall of the extrusion tube 3. The cylinder 5 passes through the limit ring 603 from both sides. Multiple positioning grooves 604 are opened on both the left and right sides of the die head 4. The right side of the die head 4 abuts against the extrusion tube 3. In use, the positioning groove 604 on the right side of the die head 4 is aligned with the positioning block 605 on the left side of the extrusion tube 3, and the die head 4 abuts against the extrusion tube 3. Next, multiple positioning blocks 605 are fixed on the left side of the extrusion tube 3, and multiple positioning rods 606 are fixed on the right side of the cylinder 5. The left side of the die head 4 does not abut against the cylinder 5. Further, the positioning rod 606 on the right side of the cylinder 5 is inserted into the positioning groove 604 on the left side of the die head 4. Then, the threaded ring 601 is passed through the left side of the cylinder 5 and threadedly connected to the extrusion tube 3. The threaded ring 601 drives the connecting rod 602 and the limiting ring 603 to move to the right, thereby fixing the cylinder 5 with the die head 4 on the left side of the extrusion tube 3. When it is necessary to replace the die head 4 and the cylinder 5, the above operation can be reversed to disassemble them.

[0027] Please see Figure 1-4In this embodiment, the cooling mechanism includes a spray chamber 701 fixed to the top surface of the base plate 1. The spray chamber 701 is filled with spray liquid. Both sides of the spray chamber 701 have through holes for the passage of anti-cracking PPR pipes. A drain pipe is fixed to the front of the spray chamber 701, and a drain valve is fixed to the outer peripheral wall of the drain pipe. An annular chamber 702 is rotatably connected to the inner right side of the spray chamber 701. Multiple spray heads 703 are fixed to the inner peripheral wall of the annular chamber 702. A connecting groove 704 is provided on the right side of the annular chamber 702. An annular groove 705 communicating with a connecting groove 704 is provided inside the right side wall of the spray chamber 701. A water pump 714 with its inlet end fixed to the right side of the spray chamber 701 is fixed to the top surface of the bottom plate 1. A diversion pipe 706 is fixed to the outlet end of the water pump 714. A connecting pipe 707 extending to the inside of the annular groove 705 is fixed to the left side of the diversion pipe 706. The connecting groove 704, the annular groove 705, and the annular chamber 702 are all annular structures and are located on the same central axis as the cylinder 5. When processing crack-resistant PPR pipes, the machine body 2 will pass the raw material through... After being shaped by the die head 4, the material is extruded and enters the cylinder 5 for initial cooling. It then extends into the spray chamber 701 and penetrates the annular chamber 702. At this point, the water pump 714 is activated, drawing the spray liquid from inside the spray chamber 701 and conveying it through the diverter pipe 706 to the connecting pipe 707. The connecting pipe 707 then conveys the spray liquid to the annular groove 705, further entering the connecting groove 704. The liquid is then sprayed through the spray nozzles 703 on the inner wall of the annular chamber 702 for secondary cooling. A cooling jacket 70 is fixed to the outer peripheral wall of the cylinder 5. 8. A water supply pipe 709 is fixed on the right side of the diversion pipe 706, with one end threadedly connected to the cooling jacket 708. A return water pipe 710 is threadedly connected to the back of the cooling jacket 708, with the left end fixed to the right side of the spray chamber 701. The cooling jacket 708 has an annular cavity structure, and both the water supply pipe 709 and the return water pipe 710 extend into its cavity. When the water pump 714 starts, the spray liquid will also be transported to the inside of the cooling jacket 708 through the water supply pipe 709 to cool the cylinder 5, and then flow back into the spray chamber 701 through the return water pipe 710.

[0028] The cooling jacket 708 has threaded holes on its front and rear sides for threaded connection of water supply pipe 709 and return pipe 710. Sealing rings are fixed on the outer peripheral walls of both water supply pipe 709 and return pipe 710. By setting the water supply pipe 709 and return pipe 710 to be threaded connection, it is easy to separate them from the cooling jacket 708, which facilitates the disassembly of the installation mechanism. In addition, both water supply pipe 709 and return pipe 710 are flexible hoses, and the end of them near the cooling jacket 708 is a rigid pipe.

[0029] Please see Figure 1-4In this embodiment, a motor 711 is fixed on the left side of the spray chamber 701, and a gear 712 is fixed on the right end of the output shaft of the motor 711. A gear ring 713 that meshes with the gear 712 is fixed on the outer peripheral wall of the annular chamber 702. When spraying, the motor 711 is started, the motor 711 drives the gear 712 to rotate, the gear 712 drives the gear ring 713 to rotate, and the gear ring 713 drives the annular chamber 702 to rotate, thereby causing multiple spray heads 703 to rotate and spray, improving the cooling efficiency.

[0030] The working principle of the above embodiments is as follows:

[0031] (1) When in use, align the positioning groove 604 on the right side of the die head 4 with the positioning block 605 on the left side of the extrusion tube 3, and make the die head 4 abut against the extrusion tube 3. Then, insert the positioning rod 606 on the right side of the cylinder 5 into the positioning groove 604 on the left side of the die head 4, and then pass the threaded ring 601 through the left side of the cylinder 5 and make it threadedly connected to the extrusion tube 3. The threaded ring 601 drives the connecting rod 602 and the limiting ring 603 to move to the right, thereby fixing the die head 4 on the left side of the extrusion tube 3. When it is necessary to replace the die head 4 and the cylinder 5, the above operation can be reversed to disassemble them.

[0032] (2) When processing crack-resistant PPR pipes, the machine body 2 extrudes the raw material through the die head 4 after shaping, and it enters the cylinder 5 for the first cooling. Then it extends into the spray chamber 701 and passes through the annular chamber 702. At this time, the water pump 714 is started. The water pump 714 draws out the spray liquid inside the spray chamber 701 and transports it to the connecting pipe 707 through the diversion pipe 706. The connecting pipe 707 transports the spray liquid to the annular groove 705, and further enters the connecting groove 704. It is then sprayed through the spray nozzles on the inner wall of the annular chamber 702. The spray head 703 sprays water to cool the pipe a second time. When spraying, the motor 711 is started, the motor 711 drives the gear 712 to rotate, the gear 712 drives the gear ring 713 to rotate, and the gear ring 713 drives the annular chamber 702 to rotate, thereby causing multiple spray heads 703 to rotate and spray, improving the cooling efficiency. When the water pump 714 is started, the spray liquid is also transported to the cooling jacket 708 through the water supply pipe 709 to cool the cylinder 5, and then flows back into the spray chamber 701 through the return water pipe 710.

[0033] 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0034] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A crack-resistant PPR pipe melt extrusion device, comprising a base plate (1), an organic body (2) fixed on the top surface of the base plate (1), an extrusion pipe (3) fixed on the left side of the organic body (2), and an organic head (4) installed on the left side of the extrusion pipe (3); Its features are: A cylinder (5) is installed on the left side of the head (4), and an installation mechanism for fixing the head (4) and the cylinder (5) is provided on the extrusion tube (3). A cooling mechanism is provided on the bottom plate (1). The installation mechanism includes a threaded ring (601) threadedly connected to the outer peripheral wall of the extrusion tube (3). Two connecting rods (602) are fixed to the left side of the threaded ring (601). Limiting rings (603) are fixed to the left ends of the two connecting rods (602). Multiple positioning grooves (604) are provided on both the left and right sides of the die head (4). Multiple positioning blocks (605) are fixed to the left side of the extrusion tube (3). Multiple positioning rods (606) are fixed to the right side of the cylinder (5).

2. The anti-cracking PPR pipe melt extrusion equipment according to claim 1, characterized in that: The cooling mechanism includes a spray chamber (701) fixed to the top surface of the base plate (1). An annular chamber (702) is rotatably connected to the inner right side wall of the spray chamber (701). Multiple spray heads (703) are fixed to the inner circumferential wall of the annular chamber (702). A connecting groove (704) is provided on the right side of the annular chamber (702). An annular groove (705) communicating with the connecting groove (704) is provided inside the right side wall of the spray chamber (701). A water inlet is fixed to the top surface of the base plate (1) and is fixed to the right side of the spray chamber (701). A water pump (714) is provided, with a diversion pipe (706) fixed at the outlet end of the water pump (714). A connecting pipe (707) extending to the inside of an annular groove (705) is fixed on the left side of the diversion pipe (706). A cooling jacket (708) is fixed on the outer peripheral wall of the cylinder (5). A water delivery pipe (709) with one end threadedly connected to the cooling jacket (708) is fixed on the right side of the diversion pipe (706). A return water pipe (710) with its left end fixed to the right side of the spray chamber (701) is threadedly connected to the back of the cooling jacket (708).

3. The anti-cracking PPR pipe melt extrusion equipment according to claim 2, characterized in that: A motor (711) is fixed on the left side of the spray chamber (701), a gear (712) is fixed on the right end of the output shaft of the motor (711), and a gear ring (713) that meshes with the gear (712) is fixed on the outer peripheral wall of the annular chamber (702).

4. The anti-cracking PPR pipe melt extrusion equipment according to claim 1, characterized in that: The outer peripheral wall of the extrusion tube (3) is provided with a threaded groove that matches the threaded ring (601). The cylinder (5) is formed by the left and right through the limiting ring (603). The right side of the die head (4) abuts against the extrusion tube (3), and the left side of the die head (4) does not abut against the cylinder (5).

5. The anti-cracking PPR pipe melt extrusion equipment according to claim 3, characterized in that: The spray chamber (701) is filled with spray liquid. Both sides of the spray chamber (701) are provided with material passage holes for the anti-cracking PPR pipe to pass through. A drain pipe is fixed on the front of the spray chamber (701) and a drain valve is fixed on the outer peripheral wall of the drain pipe.

6. The anti-cracking PPR pipe melt extrusion equipment according to claim 3, characterized in that: The connecting groove (704), the annular groove (705), and the annular chamber (702) are all annular structures and are located on the same central axis as the cylinder (5). The cooling jacket (708) is an annular cavity structure, and the water supply pipe (709) and the water return pipe (710) both extend into its cavity.

7. The anti-cracking PPR pipe melt extrusion equipment according to claim 3, characterized in that: The cooling jacket (708) has threaded holes on its front and rear sides for threaded connection between the water supply pipe (709) and the return pipe (710). Sealing rings are fixed on the outer peripheral walls of both the water supply pipe (709) and the return pipe (710).

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