Die body device for producing square structure wall pipe
By designing a mold device including a mold, a shaping water jacket and a shaping module, the problem of difficulty in efficient production of double-wall corrugated pipes in the prior art is solved, and efficient and high-quality double-layer structural wall pipe production is achieved.
Patent Information
- Application Number
- CN202421794908.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-29
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2034-07-29
AI Technical Summary
It is difficult to efficiently produce double-wall corrugated pipes with the advantages of high pressure resistance, high temperature resistance, flame retardant, and earthquake resistance.
A mold device including a mold, a shaping water jacket and a shaping module is designed to form a blank through a straight and spiral flow channel inside the mold, and combines the vacuum channel and corrugated die groove of the shaping module to achieve efficient molding and bonding of the inner and outer blanks.
It realizes efficient production of double-layer structure wall pipes, improves the quality and production efficiency of pipes, and meets performance requirements such as high pressure and high temperature resistance.
Smart Images
Figure CN222832329U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pipeline production, in particular to a mold device for producing square structure wall pipes. Background Art
[0002] At present, the pipes in the fields of power cables, communication sheaths, etc. are generally polypropylene and HDPE double-wall corrugated pipes. The new structural wall pipe material made by high-strength corrugated design and processing technology has a series of advantages such as novel structure, high compressive strength, fast and convenient construction, high temperature resistance, flame retardancy, earthquake resistance, and long service life. Therefore, it is of great significance to design a mold device for efficient production of double-wall corrugated pipes. Utility Model Content
[0003] The purpose of the present application is to provide a mold device for producing square structure wall tubes to solve the problems raised in the above background technology.
[0004] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a mold device for producing square structure wall tubes, comprising a mold body, a shaping water jacket and a shaping module, one end of the mold body is fixedly installed with a shaping water jacket, the outer sleeve of the shaping water jacket is installed with a shaping module, the interior of the mold body is provided with two straight flow channels and two spiral flow channels correspondingly connected to the straight flow channels, one end of the mold body is provided with an inner layer blank discharge port and an outer layer blank discharge port, the inner layer blank discharge port and the outer layer blank discharge port are respectively connected to the two straight flow channels correspondingly, and the interior of the mold body is provided with a plurality of spiral flow channels corresponding to the straight flow channels. A compressed air channel is also provided between the inner layer blank discharge port and the outer layer blank discharge port, a corrugated die groove is provided on the inner side wall of the shaping module, side holes, a vacuum tube, a bottom hole and a vacuum line are provided inside the shaping module, and the vacuum line, the side holes, the vacuum tube and the bottom hole form a vacuum channel of the shaping module, and the vacuum channel is connected with the corrugated die groove, the shaping water jacket comprises an inner jacket and an outer jacket covering and fixed on the outside of the inner jacket, a spiral water channel is provided between the outer jacket and the inner jacket, and a plurality of vacuum grooves evenly spaced are provided on the outer wall of the outer jacket.
[0005] Preferably, the shaping module consists of two symmetrically arranged half-molds, and the two half-molds are connected by bolts.
[0006] Preferably, the mold body is provided with an outer layer blank feed port and an inner layer blank feed port, and the outer layer blank feed port and the inner layer blank feed port are respectively connected with the outer layer blank discharge port and the inner layer blank discharge port.
[0007] In summary, the technical effects and advantages of the utility model are:
[0008] In the utility model, the double-layer structural wall pipe can be efficiently produced through the cooperation of the mold body, the shaping water jacket and the shaping module, and the quality of the produced structural wall pipe is high. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.
[0010] Figure 1 This is a schematic structural diagram of a mold device for producing a square structure wall tube in an embodiment of the present application;
[0011] Figure 2 A schematic diagram of the partial structure of a mold device for producing a square-structured wall tube in an embodiment of the present application;
[0012] Figure 3 This is a schematic diagram of the end structure of a molding module of a mold device for producing a square-structured wall tube in an embodiment of the present application;
[0013] Figure 4 This is a schematic diagram of the square wall tube structure required to be produced in the embodiment of the present application.
[0014] In the figure: 1. mold body; 2. molding water jacket; 3. molding module; 4. inner layer blank outlet; 5. spiral flow channel; 6. inner layer blank feed port; 7. outer layer blank feed port; 8. outer layer blank outlet; 9. spiral water channel; 10. vacuum groove; 11. outer sleeve; 12. inner sleeve; 13. compressed air channel; 14. side hole; 15. vacuum tube; 16. bottom hole; 17. vacuum line; 18. straight flow channel. DETAILED DESCRIPTION
[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0016] In the description of the present disclosure, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "top", "bottom", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present disclosure. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.
[0017] It should also be noted that the standard parts used in this application document can be purchased from the market, and can be customized according to the description in the specification and drawings. Unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, and it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in this disclosure can be understood according to the specific circumstances, and in the absence of clear limitations, machines, parts and equipment can all adopt conventional models in the prior art.
[0018] In this article, the term "comprising" is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, the elements defined by the sentence "comprising..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.
[0019] Example: Reference Figure 1-3The mold device for producing a square structure wall tube shown in the figure comprises a mold body 1, a shaping water jacket 2 and a shaping module 3. The shaping water jacket 2 is fixedly installed at one end of the mold body 1, and the shaping module 3 is installed on the outside of the shaping water jacket 2. Two straight flow channels 18 and two spiral flow channels 5 correspondingly connected to the straight flow channels are arranged inside the mold body 1. An inner layer blank discharge port 4 and an outer layer blank discharge port 8 are arranged at one end of the mold body 1. The inner layer blank discharge port 4 and the outer layer blank discharge port 8 are respectively connected to the two straight flow channels 18. A compressed air channel 13 is also arranged inside the mold body 1 between the inner layer blank discharge port and the outer layer blank discharge port. The shaping module 3 The inner wall is provided with a corrugated die groove, the interior of the shaping module 3 is provided with a side hole 14, a vacuum tube 15, a bottom hole 16 and a vacuum line 17, the vacuum line 17, the side hole 14, the vacuum tube 15, and the bottom hole 16 form a vacuum channel of the shaping module, the vacuum channel is connected with the corrugated die groove, the shaping water jacket 2 comprises an inner jacket 12 and an outer jacket 11 wrapped and fixed on the outside of the inner jacket, a spiral water channel 9 is provided between the outer jacket 11 and the inner jacket 12, and a plurality of vacuum grooves 10 evenly spaced are provided on the outer wall of the outer jacket 11, which form a vacuum channel with the inner layer tube of the pipe when producing the pipe, and adsorb the inner layer tube to the surface of the water jacket to ensure the surface quality and size of the inner layer tube.
[0020] Among them, when the finalized module is cast, 2-3 steel pipes with a diameter of 16-20mm and a thickness of 2mm are embedded inside. The steel pipes are processed into a semicircle, which is called a vacuum tube; 2-3 grooves with a width of 0.4-0.6mm and a depth of about 5-7mm are processed at the bottom of the module cavity, which are vacuum lines; the module is drilled on the side, and the holes intersect with the vacuum tube and vacuum line at the same time; finally, a hole is drilled at the bottom of the module to intersect with the vacuum tube; the vacuum line, side holes, steel pipes, and bottom holes form the vacuum channel of the module. When the pipe is produced, the vacuum system forms a negative pressure in the module cavity through the vacuum pipe to ensure that the outer layer of the pipe blank can be tightly attached to the module cavity.
[0021] The material of the molding module is aluminum. According to the module cooling method, the module is divided into air-cooled module and water-cooled module. The air-cooled module uses a fan to blow air on the module surface to achieve the module cooling effect. The bottom of the module is processed into a T-shaped groove, which is connected and fixed to the sliding base on the molding machine; the air-cooled module is embedded with water channels inside and cooled by circulating water.
[0022] According to the above structure, the shaping module 3 is composed of two symmetrically arranged half-molds, and the two half-molds are connected by bolts.
[0023] With the above structure: the mold body 1 is provided with an outer layer blank feed port 7 and an inner layer blank feed port 6, and the outer layer blank feed port 7 and the inner layer blank feed port 6 are connected with the outer layer blank discharge port 8 and the inner layer blank discharge port 4 respectively.
[0024] The novel production process is as follows: the pipe is produced on an extrusion type double-wall corrugated pipe production line. During production, the outer pipe raw material is extruded by extruder A, and the inner pipe raw material is extruded by extruder B. The raw materials enter the die body from the outer layer blank feed port 7 and the inner layer blank feed port 6 respectively. The blank temperature is maintained at about 190°C. In the die body, the pipe blank first passes through a spiral flow channel to form a round pipe blank, and then passes through a linear flow channel, changing the spiral motion to a linear motion, and is further plasticized and generates the necessary molding pressure to ensure the density of the product; through the inner layer blank discharge port and the outer layer blank discharge port of the die head, a blank with the required discharge port shape and size is obtained, and then flows through a shaping water jacket and a square shaping module, which are respectively fixed on two conveyors. On the driving belt, when the transmission device drives the mold to rotate, the upper and lower (or horizontal) molds repeat the opening and closing action, the module is closed to form the molding cavity of the pipe, and the module can be opened to demould the pipe. After the pipe material billet flows out of the mold body, the compressed air channel 13 is introduced with compressed air, and the compressed air between the inner and outer layers of the billet generates pressure, and the pressure squeezes the inner layer of the billet onto the shaping water jacket to form an inner layer tube; and the inner cavity of the shaping module generates negative pressure through the vacuum channel, and the outer layer of the billet is squeezed into the inner cavity of the module by the combined action of the pressure of the compressed air and the negative pressure of the inner cavity of the module to form a corrugated outer layer tube; at the trough, the two layers of the billet can be firmly bonded under the extrusion of the shaping module and the shaping water jacket and the action of high temperature to form a whole, and the produced pipe is as follows Figure 4 shown.
[0025] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A mold device for producing square structure wall tubes, characterized in that: The mold body (1) comprises a mold body (1), a molding water jacket (2) and a molding module (3), wherein the molding water jacket (2) is fixedly mounted on one end of the mold body (1), the molding module (3) is sleeved and mounted on the outside of the molding water jacket (2), two straight flow channels (18) and two spiral flow channels (5) correspondingly connected to the straight flow channels are arranged inside the mold body (1), an inner layer blank discharge port (4) and an outer layer blank discharge port (8) are arranged on one end of the mold body (1), the inner layer blank discharge port (4) and the outer layer blank discharge port (8) are respectively connected to the two straight flow channels (18), and a compressed air outlet is arranged inside the mold body (1) between the inner layer blank discharge port and the outer layer blank discharge port. A channel (13), a corrugated die groove is provided on the inner side wall of the shaping module (3), a side hole (14), a vacuum tube (15), a bottom hole (16) and a vacuum line (17) are provided inside the shaping module (3), the vacuum line (17), the side hole (14), the vacuum tube (15) and the bottom hole (16) form a vacuum channel of the shaping module, the vacuum channel is communicated with the corrugated die groove, the shaping water jacket (2) comprises an inner jacket (12) and an outer jacket (11) covering and fixed to the outside of the inner jacket, a spiral water channel (9) is provided between the outer jacket (11) and the inner jacket (12), and a plurality of vacuum grooves (10) arranged at even intervals are provided on the outer wall of the outer jacket (11).
2. A mold device for producing square structure wall tubes according to claim 1, characterized in that: The shaping module (3) consists of two symmetrically arranged half-molds, and the two half-molds are connected by bolts.
3. A mold device for producing square structure wall tubes according to claim 1, characterized in that: The mold body (1) is provided with an outer layer blank feed port (7) and an inner layer blank feed port (6), and the outer layer blank feed port (7) and the inner layer blank feed port (6) are respectively connected to the outer layer blank discharge port (8) and the inner layer blank discharge port (4).