PE steel wire mesh framework pipe surface leveling device

Abstract

The utility model relates to the technical field of steel wire mesh framework pipe preparation, and particularly discloses a PE steel wire mesh framework pipe surface leveling device which comprises a forming die and a shaping sleeve coaxially arranged at the downstream end of the forming die. The pipe wall of the shaping sleeve is provided with a first cooling cavity, a water inlet hole and a water outlet hole, the water inlet hole and the water outlet hole are communicated with the first cooling cavity, the free end of the shaping sleeve is inwards and coaxially provided with a containing cavity, a rotating pipe flush with the inner surface of the shaping sleeve is slidably connected into the containing cavity, and the free end of the shaping sleeve is provided with a driving structure used for driving the rotating pipe to rotate. The problems that in the shaping process of a pipe in a shaping sleeve of a traditional PE steel wire mesh framework pipe surface flattening device, the cooling speed of PE plastic is different, blockage is prone to occurring, and consequently continuous dents exist on the surface of the pipe in the advancing direction are solved.

Description

Technical Field

[0001] The present application relates to the technical field of the preparation of steel wire mesh skeleton pipes, and specifically discloses a surface leveling device for PE steel wire mesh skeleton pipes. Background Art

[0002] A steel wire mesh skeleton pipe is a new type of composite pipe, which is formed by adding a steel wire mesh skeleton on the basis of an ordinary plastic pipe. Among them, the main production steps of a PE steel wire mesh skeleton pipe produced with PE plastic are as follows:

[0003] First, the steel wire mesh is curled and welded to form a tubular structure, then the steel wire mesh skeleton is placed between the forming outer mold and the forming inner mold, and the molten PE plastic is extruded by an extruder into the space between the forming outer mold and the forming inner mold of the forming mold to wrap the steel wire mesh skeleton with the molten PE plastic, and a PE steel wire mesh skeleton pipe is formed after multiple layers of wrapping and forming.

[0004] However, in the prior art, after the steel wire mesh is wrapped on the outer layer, the product is prone to obvious steel wire marks and serious unevenness, which will affect the flatness of the outer wall of the pipe.

[0005] In the prior art, as disclosed in a surface leveling mechanism for a PE steel wire mesh skeleton pipe with the Chinese patent publication number CN215661757U, which consists of a forming mold and a shaping sleeve installed downstream of the forming mold and having an inner diameter smaller than that of the forming mold. By providing a cooling chamber in the shaping sleeve, the formed but not yet fully cooled pipe coming out of the forming mold can enter the shaping sleeve, and the outer wall of the pipe is flattened by the inner surface of the shaping sleeve to make the outer pipe of the pipe parallel and prevent its surface from being uneven.

[0006] However, due to the fixed traveling direction of the pipe coming out of the forming mold, during the leveling process by the shaping sleeve, if some PE plastic cools first or gets blocked, it will affect the leveling effect of the pipe at that position, and a continuous dent will be generated during the continuous traveling of the pipe.

[0007] Therefore, in view of this, the inventor provides a surface leveling device for PE steel wire mesh skeleton pipes to solve the above problems. Utility Model Content

[0008] The purpose of the present utility model is to solve the problem that in the traditional surface leveling device for PE steel wire mesh skeleton pipes, during the shaping process of the pipe in the shaping sleeve, the cooling speed of the PE plastic is inconsistent and it is prone to blockage, resulting in a continuous dent on the surface of the pipe along the traveling direction.

[0009] To achieve the above object, the basic solution of the present utility model provides a surface leveling device for a PE steel wire mesh skeleton pipe, including a forming die and a shaping sleeve coaxially arranged at the downstream end of the forming die. The inner diameter of the shaping sleeve is smaller than that of the forming die. The pipe wall of the shaping sleeve is provided with a first cooling chamber, a water inlet hole and a water outlet hole respectively communicated with the first cooling chamber. The free end of the shaping sleeve is coaxially inwardly provided with a receiving chamber, and a rotating pipe flush with the inner surface of the shaping sleeve is slidably connected in the receiving chamber. A driving structure for driving the rotating pipe to rotate is provided at the free end of the shaping sleeve.

[0010] Further, the rotating pipe extends out of the free end of the shaping sleeve and a gear ring is fixedly connected to the outer wall. The driving structure includes a driving motor fixedly connected to the free end of the shaping sleeve and a gear coaxially fixedly connected to the output shaft of the driving motor. The gear meshes with the gear ring.

[0011] Further, a metal cushion layer is fixedly connected to the inner wall of the rotating pipe.

[0012] Further, a transition section is formed between the end of the shaping sleeve connected to the forming die and the inner end of the receiving chamber. A plurality of second cooling chambers communicated with the first cooling chamber and arranged side by side are provided in the transition section.

[0013] Further, an inclined portion is formed at the inner end of the rotating pipe, and the transition section extends towards the inclined portion and fits with the inclined portion.

[0014] Further, a plurality of water outlet holes are provided on the outer wall of the shaping sleeve, and all the water outlet holes are communicated with the first cooling chamber.

[0015] Further, an inclined transition section is provided between the shaping sleeve and the forming die.

[0016] The principle and effect of this solution are as follows:

[0017] Compared with the prior art, the present utility model also installs a rotatable rotating pipe in the shaping sleeve. After the PE steel wire mesh skeleton pipe enters the shaping sleeve, it will contact the inner wall of the rotating pipe. The continuously rotating rotating pipe shapes the outer wall of the pipe. The cooling medium flowing in the first cooling chamber exchanges heat with the pipe inside through the rotating pipe. The continuous rotation can achieve uniform heat exchange and prevent the PE plastic part from condensing and blocking. The rotating rotating pipe can also homogenize the PE plastic, solving the problem that in the traditional surface leveling device for PE steel wire mesh skeleton pipes, during the shaping process of the pipe in the shaping sleeve, the cooling speed of the PE plastic is inconsistent and it is easy to block, resulting in continuous concave marks on the surface of the pipe along the advancing direction. Description of the Drawings

[0018] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the accompanying drawings required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those skilled in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0019] Figure 1 The figure shows a schematic diagram of a surface leveling device for a PE steel wire mesh skeleton pipe proposed in an embodiment of the present application;

[0020] Figure 2 The figure shows a cross-sectional view of a surface leveling device for a PE steel wire mesh skeleton pipe proposed in an embodiment of the present application;

[0021] Figure 3 The figure shows a partial schematic diagram of a surface leveling device for a PE steel wire mesh skeleton pipe proposed in an embodiment of the present application. Detailed implementation manners

[0022] To further elaborate on the technical means and effects adopted by the present utility model to achieve the predetermined utility model purpose, the following will, in conjunction with the accompanying drawings and preferred embodiments, detail the specific implementation manners, structures, features, and their effects of the present utility model as follows.

[0023] The reference numerals in the accompanying drawings of the specification include: forming die 1, inclined transition section 2, shaping sleeve 3, forming die 4, rotating pipe 5, metal cushion layer 6, first cooling chamber 7, second cooling chamber 8, steel wire mesh skeleton 9, and PE plastic 10.

[0024] A surface leveling device for a PE steel wire mesh skeleton pipe, as shown in the embodiments Figure 1 shown:

[0025] It includes a forming die 1 and a shaping sleeve 3 coaxially installed at the downstream end of the forming die 1. The inner diameter of the shaping sleeve 3 is smaller than that of the forming die 1, and an inclined transition section 2 is installed between the shaping sleeve 3 and the forming die 1. Specifically, the inclined transition section 2 inclines and converges from the end of the forming die 1 to the end of the shaping sleeve 3, and the inner wall of the inclined transition section 2 and the inner walls of the connected forming die 1 and shaping sleeve 3 adopt a smooth transition.

[0026] As Figure 2 and Figure 3 shown, a receiving chamber is coaxially opened inward at the left end of the shaping sleeve 3. A rotating pipe 5 is installed in the receiving chamber. The rotating pipe 5 can rotate in the receiving chamber. The inner surface of the rotating pipe 5 is flush with the inner surface of the shaping sleeve 3, and the outer surface of the rotating pipe 5 fits the inner wall of the receiving chamber. A closed metal cushion layer 6 is fixedly installed on the inner wall of the rotating pipe 5, and the adhesion of the PE plastic 10 can be reduced by the metal cushion layer 6. A driving structure for driving the rotating pipe 5 to rotate is also installed outside the left end of the shaping sleeve 3.

[0027] The left end of the rotating pipe 5 extends out of the shaping sleeve 3, and a ring gear is fixedly installed on the outer side of the left end of the rotating pipe 5. The driving structure includes a motor base fixedly installed at the left end of the shaping sleeve 3, a driving motor fixedly installed on the motor base, and a gear coaxially and fixedly installed on the output shaft of the driving motor. The gear meshes with the ring gear, and the rotation of the gear drives the ring gear and the rotating pipe 5 to rotate synchronously.

[0028] In this embodiment, a first cooling chamber 7 is further formed in the pipe wall of the shaping sleeve 3 and wraps the accommodation chamber of the shaping sleeve 3. Water inlet holes and a plurality of water outlet holes are formed in the pipe wall, and both the water inlet holes and the plurality of water outlet holes are communicated with the first cooling chamber 7.

[0029] A transition section is formed between the right end of the shaping sleeve 3 and the right end of the accommodation chamber. A plurality of second cooling chambers 8 communicated with the first cooling chamber 7 and arranged side by side outside the transition section are formed in the transition section. Specifically, the second cooling chamber 8 is a cooling pipe cavity wrapped outside the transition section.

[0030] An inclined portion is further formed at the right end of the rotating pipe 5. The transition section extends towards the inclined portion and fits with the inclined portion to prevent the molten PE plastic 10 from entering the gap between the rotating pipe 5 and the transition section.

[0031] When the utility model is in use, the driving motor is started to rotate the rotating pipe 5. Then, the welded wire mesh skeleton 9 is pushed into the forming die 1 and continuously fed towards the shaping sleeve 3. The molten PE plastic 10 is extruded from the forming die 1 and wrapped on both sides of the wire mesh skeleton 9. The pipe with the advancing and wrapped PE plastic 10 is supported by the forming inner die in the forming die 1;

[0032] During the advancement of the wire mesh skeleton 9 carrying the molten PE plastic 10, the excess PE plastic 10 is blocked by the inclined transition section 2 and enters the shaping sleeve 3. The continuously rotating rotating pipe 5 levels the outer surface of the PE plastic 10 and prevents the accumulation of the PE plastic 10.

[0033] At the same time, the first cooling chamber 7 and the second cooling chamber 8 cool the PE plastic 10 to make it form and solidify and wrap outside the wire mesh skeleton 9. The continuous rotation of the rotating pipe 5 can achieve uniform heat exchange and can also uniformize the PE plastic 10 on the outer surface.

[0034] The above are only the preferred embodiments of the present utility model, and do not impose any form of limitation on the present utility model. Although the present utility model has been disclosed above with the preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to equivalent embodiments with equivalent changes within the scope of the technical solution of the present utility model by using the technical content disclosed above. However, as long as it does not depart from the content of the technical solution of the present utility model, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present utility model still fall within the scope of the technical solution of the present utility model.

Claims

1. A PE steel wire mesh skeleton pipe surface smoothing device, comprising a forming die and a shaping sleeve coaxially arranged at the downstream end of the forming die, wherein the inner diameter of the shaping sleeve is smaller than the inner diameter of the forming die, and the tube wall of the shaping sleeve is provided with a first cooling chamber and a water inlet and a water outlet respectively connected to the first cooling chamber, characterized in that: The free end of the shaping sleeve is coaxially opened with a receiving chamber inwardly, and a rotating tube flush with the inner surface of the shaping sleeve is slidably connected in the receiving chamber. The free end of the shaping sleeve is provided with a driving structure for driving the rotating tube to rotate.

2. A PE steel wire mesh skeleton pipe surface smoothing device according to claim 1, characterized in that: The rotating tube extends out of the free end of the shaping sleeve and has a gear ring fixed on its outer wall. The driving structure includes a driving motor fixed to the free end of the shaping sleeve and a gear coaxially fixed to the output shaft of the driving motor, and the gear is meshed with the gear ring.

3. A PE steel wire mesh skeleton pipe surface smoothing device according to claim 1, characterized in that: The inner wall of the rotating tube is fixedly connected with a metal cushion layer.

4. A PE steel wire mesh skeleton pipe surface smoothing device according to claim 1, characterized in that: A transition section is formed between one end of the shaping sleeve connected to the forming mold and the inner end of the accommodating chamber, and a plurality of second cooling chambers connected to and arranged side by side with the first cooling chamber are arranged in the transition section.

5. A PE steel wire mesh skeleton pipe surface smoothing device according to claim 4, characterized in that: An inclined portion is formed at the inner end of the rotating tube, and the transition section extends toward the inclined portion and fits with the inclined portion.

6. A PE steel wire mesh skeleton pipe surface smoothing device according to any one of claims 1 to 5, characterized in that: The outer wall of the shaping sleeve is provided with a plurality of water outlet holes, and the water outlet holes are all communicated with the first cooling chamber.

7. A PE steel wire mesh skeleton pipe surface smoothing device according to any one of claims 1 to 5, characterized in that: An inclined transition section is arranged between the shaping sleeve and the forming die.

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