Fixing device for polyurethane thermal insulation pipe machining

Abstract

The utility model discloses a fixing device for polyurethane thermal insulation pipe processing, which comprises a base, a positioning groove is arranged at the top end of the base, guide rails are welded on two sides of the base, the guide rails are symmetrically arranged in parallel, fixers are arranged at two ends of the base, each fixer comprises a frame, a support is fixed at the bottom of the frame, and the support is fixed at the bottom of the base. The two ends of the support are slidably connected with the two guide rails correspondingly, a baffle is fastened to one side of the frame through bolts, a positioning barrel is fixed to the center of the baffle, an inner pipe positioning opening is formed in the positioning barrel, pressing oil cylinders are evenly installed on the portion, located on the outer side of the positioning barrel, of the frame, and the output ends of the pressing oil cylinders penetrate through the surface of the frame. Pushing oil cylinders are fixed to the two ends of the base, cylinder bodies of the pushing oil cylinders are fixed to the base, connecting rods are fixed to the output ends of the pushing oil cylinders, one ends of the connecting rods are connected with the output ends of the pushing oil cylinders, and the other ends of the connecting rods are fixedly connected with the frame.

Description

Technical Field

[0001] The utility model belongs to the technical field of thermal insulation pipelines, and particularly relates to a fixing device for processing polyurethane thermal insulation pipes. Background Technique

[0002] The polyurethane thermal insulation pipeline, full name: high-density polyethylene plastic outer protection polyurethane foam pre-buried directly buried thermal insulation pipe. Due to its excellent thermal insulation performance, corrosion resistance, and simple construction, etc., the polyurethane thermal insulation pipe is widely used in the fields of heating, refrigeration, petroleum, chemical industry, etc. The polyurethane thermal insulation pipeline is composed of a working steel pipe for conveying medium, a polyurethane thermal insulation layer, and a polyethylene plastic outer protection pipe, which are combined outward in sequence through equipment. In the production and processing process of the polyurethane thermal insulation pipe, the pipe-passing operation of the inner pipe through the outer pipe occupies a crucial position. Traditionally, this assembly link mainly relies on manual operation. However, this method has several significant problems, including but not limited to insufficient positioning accuracy, unstable fixing effect, and low production efficiency. These problems not only directly affect the overall quality of the product but also significantly restrict the efficiency of the production line. In view of the above problems, the utility model provides a fixing device for processing polyurethane thermal insulation pipes, ensuring that the inner pipe smoothly and accurately penetrates into the outer protection pipe, and providing stable support during the penetration process and the subsequent injection of polyurethane foam, improving production efficiency and product quality.

[0003] In view of the problems in the related art, no effective solution has been proposed yet. Content of the Utility Model

[0004] To achieve the above object, the utility model provides the following technical solution: A fixing device for processing polyurethane thermal insulation pipes, including a base, a positioning groove is arranged at the top end of the base, guide rails are welded on both sides of the base, the guide rails are arranged parallel and symmetrically, fixing devices are arranged at both ends of the base, the fixing device includes a frame, a support is fixed at the bottom of the frame, both ends of the support are respectively slidably connected with the two guide rails, a baffle is fastened on one side of the frame through bolts, a positioning cylinder is fixed at the center of the baffle, an inner pipe positioning port is arranged inside the positioning cylinder, pressing oil cylinders are evenly installed outside the positioning cylinder on the frame, the output end of the pressing oil cylinder penetrates through the surface of the frame, pushing oil cylinders are fixed at both ends of the base, the cylinder body of the pushing oil cylinder is fixed on the base, the output end of the pushing oil cylinder is fixed with a connecting rod, one end of the connecting rod is connected to the output end of the pushing oil cylinder, and the other end of the connecting rod is fixedly connected to the frame.

[0005] As a preferred technical solution of the utility model, the positioning groove is in a V-shaped structure and is opened at the center of the top of the base.

[0006] As a preferred technical solution of the present utility model, a pressing plate is fixed to the output end of the pressing oil cylinder passing through the surface of the frame, and the pressing plate is of an arc-shaped structure.

[0007] As a preferred technical solution of the present utility model, exhaust ports are evenly arranged on the outer side of the connection part of the baffle plate located at the positioning cylinder.

[0008] As a preferred technical solution of the present utility model, the pushing oil cylinder and the connecting rod are symmetrically arranged at both ends of the base.

[0009] As a preferred technical solution of the present utility model, sliding grooves are arranged on both sides of the base near the rod body of the connecting rod, and the rod body of the connecting rod is slidably connected to the base through the sliding grooves.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0011] Through automated operation, the present utility model significantly reduces the need for manual intervention, thereby accelerating the sleeving process of the inner pipe and the outer protective pipe during the production and processing of polyurethane insulation pipes, and improving production efficiency. The design of accurate positioning of the positioning cylinder and stable fixation of the fixator ensures that the inner pipe can be accurately inserted into the outer protective pipe, effectively reducing the labor intensity of workers and improving the overall quality of the working environment. In addition, the present utility model also has high flexibility. By replacing different types of baffle plates and positioning cylinders within the fixator frame, it can easily adapt to the production requirements of inner pipes and outer protective pipes of different specifications, meeting the diverse requirements of the market. Description of the Drawings

[0012] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model, and do not constitute a limitation to the present utility model. In the drawings:

[0013] Figure 1 is a side view of the present utility model;

[0014] Figure 2 is a schematic structural diagram of the fixator in the present utility model;

[0015] Figure 3 is a front view of the base in the present utility model;

[0016] In the figure: 1, base; 2, positioning groove; 3, guide rail; 4, frame; 5, support; 6, baffle plate; 7, positioning cylinder; 8, inner pipe positioning port; 9, pressing oil cylinder; 10, pushing oil cylinder; 11, connecting rod; 12, pressing plate; 13, exhaust port; 14, sliding groove. Detailed Embodiments

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0018] Embodiment

[0019] Please refer to Figures 1 - 3 , the present utility model provides the following technical solutions: A fixing device for processing polyurethane insulating pipes, including a base 1. A positioning groove 2 is provided at the top of the base 1 to ensure the stable placement of the outer protective pipe. Guide rails 3 are symmetrically and parallel welded on both sides of the base 1 to ensure the stability and accuracy of the movement of the fixator. At both ends of the base 1, fixators are provided. The fixator is composed of a frame 4. A support 5 is firmly installed at the bottom of the frame 4. Both ends of the support 5 are respectively slidably connected to the guide rails 3 on both sides, so as to realize the flexible forward and backward movement of the frame 4 on the base 1. A baffle 6 is fastened to one side of the frame 4 by bolts. A positioning cylinder 7 is installed at the central position of the baffle 6. An inner pipe positioning port 8 is designed inside the positioning cylinder 7 for precise positioning and fixing during the inner pipe threading. Compression cylinders 9 are evenly arranged in the outer area of the frame 4 where the positioning cylinder 7 is located. The output end of the compression cylinder 9 penetrates the surface of the frame 4 to apply a necessary compression force to the insulating pipe to ensure the fixation of the end of the outer protective pipe during processing.

[0020] In addition, push cylinders 10 are fixed at both ends of the base 1. The cylinder body of the push cylinder 10 is firmly installed on the base 1, and its output end is connected to the frame 4 through a connecting rod 11. One end of the connecting rod 11 is connected to the output end of the push cylinder 10, and the other end is firmly fixed to the frame 4. In this way, the push cylinder 10 can drive the frame 4 to slide on the guide rail 3 through the connecting rod 11 to realize the fixation and support of the outer protective pipe.

[0021] In order to ensure the stable placement of the outer protective pipe, in this embodiment, as a preferred technical solution of the present utility model, the positioning groove 2 is of a V-shaped structure and is opened at the center of the top of the base 1.

[0022] In order to increase the compression area and improve the compression force, in this embodiment, as a preferred technical solution of the present utility model, a pressing plate 12 is fixed to the output end of the compression cylinder 9 penetrating the surface of the frame 4, and the pressing plate 12 is of an arc-shaped structure.

[0023] In order to facilitate the smooth discharge of the air in the outer sleeve during the injection of polyurethane foam, in this embodiment, as a preferred technical solution of the present utility model, exhaust ports 13 are evenly opened on the outer side of the connection of the baffle 6 where the positioning cylinder 7 is located.

[0024] In order to ensure that the fixer is evenly stressed when it moves on both sides, in this embodiment, as a preferred technical solution of the present invention, the pushing cylinder 10 and the connecting rod 11 are symmetrically arranged at both ends of the base 1.

[0025] In order to ensure the stability of the movement of the connecting rod 11, in this embodiment, as a preferred technical solution of the present invention, sliding grooves 14 are provided on both sides of the base 1 near the rod body of the connecting rod 11, and the rod body of the connecting rod 11 is slidably connected to the base 1 through the sliding grooves 14.

[0026] In summary, according to the technical solution of the present invention, during operation, the polyethylene outer sheath must first be precisely placed within the positioning groove 2 provided on the base 1. Subsequently, the push cylinder 10 is operated to drive the frame 4 gradually toward the end of the outer sheath until the positioning cylinder 7 within the frame 4 is precisely inserted into the outer sheath end. At this point, the output force of the compression cylinder 9, with the help of the pressure plate 12, presses the outer sheath end tightly against the surface of the positioning cylinder 7, achieving a secure fixation.

[0027] After completing the above steps, the push cylinder 10 is activated again to push the frame 4 outward. The traction of the frame 4 straightens the outer protective tube, effectively preventing it from collapsing. Next, the inner steel tube is smoothly inserted through the inner tube positioning opening 8 inside the positioning cylinder 7 until it completely passes through the interior of the outer protective tube, ensuring that the other end of the inner tube is accurately inserted into the inner tube positioning opening 8 of the other end of the fixture positioning cylinder 7.

[0028] Subsequently, a professional hole-opening tool is used to open holes on the outer protective tube body, and polyurethane foam is filled in the holes until the foam is completely squeezed out from the exhaust port 13 on the surface of the baffle 6 on one side of the retainer frame 4 to ensure the density and integrity of the filling.

[0029] Finally, the output end of the outer protective tube is released by compressing the hydraulic cylinder 9. The push hydraulic cylinder 10 is activated again, smoothly pushing the retainer frame 4 away from the outer protective tube. After completing all the above steps, the outer protective tube end is wrapped with a tape seal to effectively seal it.

[0030] Finally, it should be noted that in the present invention, unless otherwise clearly stipulated and limited, terms such as "installation", "setting", "connection", "fixation", and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0031] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A fixing device for processing polyurethane insulating pipes, comprising a base (1), characterized in that: A positioning groove (2) is provided at the top of the base (1). Guide rails (3) are welded on both sides of the base (1). The guide rails (3) are arranged in parallel and symmetrically. Fixing devices are provided at both ends of the base (1). The fixing device includes a frame (4). A support (5) is fixed to the bottom of the frame (4). Both ends of the support (5) are respectively slidably connected to the two guide rails (3). A baffle (6) is fastened to one side of the frame (4) by bolts. A positioning cylinder (7) is fixed at the center of the baffle (6). An inner pipe positioning port (8) is arranged inside the positioning cylinder (7). Pressing oil cylinders (9) are evenly installed outside the positioning cylinder (7) on the frame (4). The output end of the pressing oil cylinder (9) penetrates the surface of the frame (4). Push oil cylinders (10) are fixed at both ends of the base (1). The cylinder body of the push oil cylinder (10) is fixed to the base (1). A connecting rod (11) is fixed to the output end of the push oil cylinder (10). One end of the connecting rod (11) is connected to the output end of the push oil cylinder (10), and the other end of the connecting rod (11) is fixedly connected to the frame (4).

2. The fixing device for processing a polyurethane insulating pipe according to claim 1, wherein: The positioning groove (2) is of a V-shaped structure and is opened at the center of the top of the base (1).

3. The fixing device for processing a polyurethane insulation pipe according to claim 1, characterized in that: A pressing plate (12) is fixed to the output end of the pressing oil cylinder (9) penetrating the surface of the frame (4), and the pressing plate (12) is of an arc-shaped structure.

4. A fixing device for processing a polyurethane insulation pipe according to claim 1, characterized in that: Exhaust ports (13) are evenly opened outside the connection part of the baffle (6) and the positioning cylinder (7).

5. The fixing device for processing a polyurethane insulating pipe according to claim 1, characterized in that: The push oil cylinders (10) and the connecting rods (11) are both symmetrically arranged at both ends of the base (1).

6. The fixing device for processing a polyurethane insulation pipe according to claim 1, wherein: Chutes (14) are provided on both sides of the base (1) near the rod bodies of the connecting rods (11). The rod bodies of the connecting rods (11) are slidably connected to the base (1) through the chutes (14).

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