A PVC-U drainage pipe extrusion die

Abstract

The utility model discloses a PVC-U drainage pipe extrusion die, comprising a main shaft and a group of shell plates, wherein the group of shell plates is arranged on the outer side of the main shaft, a slot is opened on the side wall at one end of the main shaft, and a plug rod is connected to the side wall at the other end of the main shaft, a limiting mechanism for limiting the positions of the two is arranged between the plug rod and the slot, a connecting pin for connecting and fixing the two is arranged between the group of shell plates, and a cooling groove is arranged in the inner cavity of the shell plate. During use, the utility model can connect the main shafts on both sides together by utilizing the cooperation of the limiting spring, the limiting pin and the limiting groove, so as to lengthen the overall length of the die, thereby meeting the processing of drainage pipe lengths with different usage requirements; and the water cooling plate and the heat conducting plate cooperate to cool the outer side of the processed pipe body, so that the pipe body can be quickly cooled and formed, thereby avoiding damage to the structure of the pipe body when it is taken out.

Description

Technical Field

[0001] The utility model relates to the technical field related to extrusion dies, in particular to a PVC-U drainage pipe extrusion die. Background Art

[0002] The extrusion die is a type of molding die, but its discharge method is achieved through extrusion. It is widely used in plastic parts structures. At the front end of the extruder, it is used to make pipes or special-shaped materials. The mold is a tool used to shape objects. This tool is composed of various parts. Different molds are composed of different parts. It mainly realizes the processing of the shape of the object by changing the physical state of the molded material. When the drainage pipe is processed and extruded, the mold needs to be lengthened according to actual use requirements. However, the existing mold connection is usually connected with fixing bolts, which makes the mold lengthening process more cumbersome, thereby affecting the processing extrusion efficiency of the drainage pipe, and no cooling structure is set at the discharge point, which easily leads to a decrease in the yield rate.

[0003] Therefore, we propose a PVC-U drainage pipe extrusion die to solve the above problems. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a PVC-U drainage pipe extrusion die.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A PVC-U drainage pipe extrusion die comprises a main shaft and a group of shell plates, wherein the group of shell plates is arranged on the outside of the main shaft, a slot is opened on the side wall at one end of the main shaft, a plug rod is connected to the side wall at the other end of the main shaft, a limiting mechanism for limiting the position of the plug rod and the slot is arranged between the plug rod and the slot, a connecting pin for connecting and fixing the two is arranged between the group of shell plates, and a cooling groove is arranged in the inner cavity of the shell plate.

[0007] Preferably, the shell plate is designed as a whole in a semicircular shape, a mounting hole is opened on the side wall at one end of the shell plate, and sealing grooves and sealing plates are respectively provided on the side walls at both ends of the shell plate, and the outer end of the sealing plate is inserted into the sealing groove.

[0008] Preferably, the outer end of the insertion rod is inserted into the slot, and the adjacent side wall surfaces of the insertion rod and the slot are covered with a sealing ring structure.

[0009] Preferably, the limiting mechanism includes a receiving groove opened on the side walls at both ends of the insertion rod, a limiting spring is connected to the inner wall of the receiving groove, the outer end of the limiting spring is connected to the limiting pin, a limiting groove is opened on the inner wall of the slot, and the limiting pin is inserted into the limiting groove.

[0010] Preferably, a guide rod is connected to the inner wall of the storage groove, a guide hole is opened on the inner wall of the limit pin, the guide rod extends into the guide hole, and the side wall corner of the limit pin is designed to be inclined.

[0011] Preferably, connecting rings are respectively connected to the shell plate side walls on the upper and lower sides, and the connecting pins are inserted into the connecting rings.

[0012] Preferably, a water cooling plate is arranged in the inner wall of the cooling tank, a heat conducting plate is arranged on the upper side of the water cooling plate, and a vent hole penetrating inside and outside is opened on the outer side wall of the cooling tank.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] When the utility model is in use, a complete tubular mold is formed through the cooperation of the arranged connecting pin and the connecting ring. At the same time, during use, the main shafts on both sides can be connected together by utilizing the cooperation of the limit spring, the limit pin and the limit groove, so as to lengthen the overall length of the mold, thereby meeting the processing of drainage pipe lengths required for different uses; and the water cooling plate and the heat conduction plate cooperate to cool the outside of the processed pipe body, so that the pipe body can be quickly cooled and formed, thereby avoiding damage to the structure of the pipe body when it is taken out. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the explosion structure of the utility model;

[0017] Figure 3 For this utility model Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0018] Figure 4 It is a schematic diagram of the side sectional structure of the utility model.

[0019] In the figure: 1-main shaft, 2-shell plate, 201-mounting hole, 202-sealing groove, 202-sealing plate, 3-slot, 4-insertion rod, 5-limiting mechanism, 501-storage groove, 502-limiting spring, 503-limiting pin, 504-limiting groove, 505-guide rod, 6-connecting pin, 601-connecting ring, 7-cooling groove, 701-water cooling plate, 702-heat conduction plate, 703-air vent. DETAILED DESCRIPTION

[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0021] In the description of the present invention, "plurality" means two or more than two, unless otherwise clearly and specifically defined.

[0022] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" 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, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Reference Figure 1-4 A PVC-U drainage pipe extrusion die comprises a main shaft 1 and a group of shell plates 2, wherein the group of shell plates 2 is arranged outside the main shaft 1, and the shell plates 2 are semicircular in design as a whole. A mounting hole 201 is provided on the side wall at one end of the shell plate 2, which is connected and installed with the outlet of an external processing device to ensure the space size between the shell plate 2 and the main shaft 1. Sealing grooves 202 and sealing plates 203 are respectively provided on the side walls at both ends of the shell plate 2, and the outer end of the sealing plate 203 is inserted into the sealing groove 202. The two cooperate to ensure the sealing of the inner side to prevent the processed material from flowing out from the connection between the shell plates 2 on both sides.

[0025] A slot 3 is provided on the side wall at one end of the main shaft 1, and an insertion rod 4 is connected to the side wall at the other end of the main shaft 1. The outer end of the insertion rod 4 is inserted into the slot 3, and the adjacent side wall surfaces of the insertion rod 4 and the slot 3 are covered with a sealing ring structure to ensure the sealing degree of the connection between the two, while increasing the friction to ensure stability.

[0026] A limiting mechanism 5 for limiting the position of the two is arranged between the insertion rod 4 and the slot 3. The limiting mechanism 5 includes a receiving groove 501 opened on the side walls at both ends of the insertion rod 4, a limiting spring 502 is connected to the inner wall of the receiving groove 501, and a limiting pin 503 is connected to the outer end of the limiting spring 502. A limiting groove 504 is opened on the inner wall of the slot 3, and the limiting pin 503 is inserted into the limiting groove 504. The two cooperate to limit the position of the main shafts on both sides, stably limit the insertion rod 4 in the slot 3, thereby ensuring the stability of the connection between the molds on both sides, thereby meeting the processing requirements of drainage pipes of different lengths.

[0027] A guide rod 505 is connected to the inner wall of the storage groove 501, and a guide hole is opened on the inner wall of the limit pin 503. The guide rod 505 extends into the guide hole. The corner of the side wall of the limit pin 503 is designed to be inclined. A connecting pin 6 is arranged between a group of shell plates 2 to connect and fix the two. Connecting rings 601 are respectively connected to the side walls of the upper and lower shell plates 2. The connecting pin 6 is inserted into the connecting ring 601. The two cooperate to fix the position of the shell plate 2, thereby forming a stable tube body mold.

[0028] A cooling groove 7 is provided in the inner cavity of the shell plate 2, and a water-cooling plate 701 is arranged on the inner wall of the cooling groove 7. The water-cooling plate 701 is formed by a plurality of water-cooling pipes. A heat conduction plate 702 is provided on the upper side of the water-cooling plate 701. An air hole 703 that passes through the inside and outside is opened on the outer side wall of the cooling groove 7 to ensure air circulation for cooling the internal pipe body.

[0029] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited by the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principle of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

[0030] In the description of the present invention, it is necessary to understand that the terms indicating 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 invention 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 on the present invention.

Claims

1. A PVC-U drainage pipe extrusion die, comprising a main shaft (1) and a set of shell plates (2), wherein the set of shell plates (2) is arranged outside the main shaft (1), characterized in that: A slot (3) is provided on the side wall at one end of the main shaft (1), and an insertion rod (4) is connected to the side wall at the other end of the main shaft (1). A limit mechanism (5) is provided between the insertion rod (4) and the slot (3) for limiting the positions of the two. A connecting pin (6) is provided between a group of shell plates (2) for connecting and fixing the two. A cooling groove (7) is provided in the inner cavity of the shell plate (2).

2. A PVC-U drainage pipe extrusion die according to claim 1, characterized in that: The shell plate (2) is of semicircular design as a whole, a mounting hole (201) is provided on a side wall at one end of the shell plate (2), a sealing groove (202) and a sealing plate (203) are respectively provided on the side walls at both ends of the shell plate (2), and the outer end of the sealing plate (203) is inserted into the sealing groove (202).

3. A PVC-U drainage pipe extrusion die according to claim 1, characterized in that: The outer end of the insertion rod (4) is inserted into the slot (3), and the adjacent side wall surfaces of the insertion rod (4) and the slot (3) are covered with a sealing ring structure.

4. A PVC-U drainage pipe extrusion die according to claim 1, characterized in that: The limiting mechanism (5) comprises a receiving groove (501) formed on the side walls at both ends of the insertion rod (4); a limiting spring (502) is connected to the inner wall of the receiving groove (501); the outer end of the limiting spring (502) is connected to a limiting pin (503); a limiting groove (504) is formed on the inner wall of the insertion slot (3); and the limiting pin (503) is inserted into the limiting groove (504).

5. A PVC-U drainage pipe extrusion die according to claim 4, characterized in that: A guide rod (505) is connected to the inner wall of the storage groove (501), a guide hole is opened on the inner wall of the limit pin (503), the guide rod (505) extends into the guide hole, and the side wall corner of the limit pin (503) is designed to be inclined.

6. A PVC-U drainage pipe extrusion die according to claim 1, characterized in that: The side walls of the shell plate (2) at the upper and lower sides are respectively connected with connecting rings (601), and the connecting pin (6) is inserted into the connecting rings (601).

7. A PVC-U drainage pipe extrusion die according to claim 1, characterized in that: A water cooling plate (701) is arranged in the inner wall of the cooling groove (7), a heat conducting plate (702) is arranged on the upper side of the water cooling plate (701), and a ventilation hole (703) that penetrates inside and outside is opened on the outer side wall of the cooling groove (7).

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