Polyurethane thermal insulation pipe production and preparation device

Abstract

The utility model relates to the field of thermal insulation pipes, in particular to a polyurethane thermal insulation pipe production and preparation device, and aims to solve the technical problems that in the prior art, when an inner pipe and an outer pipe are centered, an auxiliary tool is usually welded on the inner pipe for centering, materials are wasted, and meanwhile the thermal insulation effect is poor. The device comprises a machine frame, an inner pipe platform, an inner pipe supporting groove, a push plate sliding groove, a push plate, a bearing cylinder, a notch, an outer pipe platform, an outer pipe, an outer pipe supporting groove, an outer pipe limiting frame, an inner pipe channel, a threaded shaft, a hydraulic mechanism, a first hydraulic cylinder and a second hydraulic cylinder. The inner pipe is pushed into the outer pipe through the push plate, the bearing cylinder enables the inner pipe to be straight and not bent until the other end of the inner pipe enters the outer pipe limiting frame, and assembling and foaming agent injection are completed.

Description

Technical Field

[0001] The utility model relates to the field of thermal insulation pipes, in particular to a polyurethane thermal insulation pipe production and preparation device. Background Art

[0002] The production process of thermal insulation pipes usually includes material pretreatment, mixing, injection molding, heat treatment and cutting. The optimization and control of these processes are crucial to the production of high-performance thermal insulation pipes. For example, the production process of polyurethane thermal insulation pipes requires precise control of technical points such as the selection and quality of raw materials, mixing ratio, injection molding temperature and pressure, heat treatment time and temperature, and cutting accuracy;

[0003] In the prior art, when centering the inner and outer tubes, auxiliary tooling is usually welded on the inner tube for centering, which wastes materials and has poor thermal insulation effect. The utility model solves the above problem. Utility Model Content

[0004] The utility model provides a polyurethane thermal insulation pipe production and preparation device to solve the technical problem that in the prior art, auxiliary tooling is usually welded on the inner pipe for centering when the inner and outer pipes are centered, which wastes materials and has poor thermal insulation effect.

[0005] A polyurethane thermal insulation pipe production and preparation device comprises: a frame, one side of the frame is connected to an inner tube platform, the inner tube platform is provided with an inner tube bracket, the inner tube bracket is provided with a push plate slide groove, the push plate is slidably connected to the push plate slide groove, the push plate reciprocates in the push plate slide groove through a power mechanism, the end of the inner tube platform is provided with a supporting cylinder concentric with the inner tube bracket, the inner diameter of the supporting cylinder is equal to the outer diameter of the inner tube, the bottom of the supporting cylinder is provided with a notch, the push plate can enter the notch, the supporting cylinder slides axially through a hydraulic mechanism, the other side of the frame is connected to an outer tube platform, the outer tube platform is provided with an outer tube bracket, the outer tube bracket is concentrically arranged with the inner tube bracket, an outer tube is supported on the outer tube bracket, the end of the outer tube contacts with the outer tube limiting frame, the outer tube limiting frame is connected to the frame, and the side wall of the outer tube limiting frame is provided with an inner tube channel.

[0006] Furthermore, the power mechanism includes a threaded shaft, the threaded shaft is rotatably connected in the frame, the threaded shaft is threadedly connected to the push plate, and the threaded shaft is connected to the power.

[0007] Furthermore, the hydraulic mechanism includes a hydraulic cylinder 1, a telescopic end of the hydraulic cylinder 1 is connected to a slide, the slide is slidably connected in a slide groove, a fixed end of the hydraulic cylinder 1 is connected in the slide groove, and an upper end of the slide is connected to a supporting cylinder.

[0008] Furthermore, the outer tube platform is slidably connected in the frame, and the outer tube platform and the frame are respectively connected to two ends of hydraulic cylinder 2. A plurality of outer tube brackets are provided on the outer tube platform, and hydraulic cylinder 2 can switch different outer tube brackets through telescopic arrangement concentrically with the inner tube bracket.

[0009] Beneficial effects of the utility model:

[0010] 1. Use two platforms of different heights to support the inner and outer tubes respectively, and then position the two tubes through the brackets. At this time, the two tubes are concentric. Push the inner tube into the outer tube through the push plate. The supporting cylinder keeps the inner tube straight and will not bend until the other end of the inner tube enters the outer tube limit frame. After the assembly is completed, inject the foaming agent;

[0011] 2. Directly moving the insulation pipe after injection will affect the foaming quality. By controlling the displacement of the outer pipe platform, the insulation pipe after injection can be translated. The other outer pipe bracket is concentric with the inner pipe bracket. There is no need to move the insulation pipe, and production will not be affected. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 ;

[0013] Figure 2 It is a schematic diagram of the structural section of the utility model;

[0014] Figure 3 This is a schematic diagram of the structure of the utility model Figure 2 ;

[0015] Figure 4 This is a schematic diagram of the structure of the utility model Figure 3 .

[0016] In the figure: frame 1; inner tube platform 2; inner tube bracket 3; push plate slide 4; push plate 5; supporting cylinder 6; notch 7; outer tube platform 8; outer tube 9, outer tube 9; outer tube bracket 10; outer tube limit frame 11; inner tube channel 12; threaded shaft 13; hydraulic mechanism 14; hydraulic cylinder one 141; slide 142; slide 143; hydraulic cylinder two 15. DETAILED DESCRIPTION

[0017] 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.

[0018] The rotational connection described in this device refers to the process of baking the bearing on the shaft, providing a spring retaining ring groove on the shaft or the shaft hole, and clamping the elastic retaining ring in the retaining ring groove to achieve axial fixation of the bearing and realize rotation; the articulation refers to a connection method that is active on connecting parts such as hinges, pins and short shafts.

[0019] The present invention will be described in detail below with reference to the accompanying drawings.

[0020] Embodiment 1:

[0021] The following is combined with Figure 1-4 The present embodiment describes a polyurethane thermal insulation pipe production and preparation device, comprising: a frame 1, an inner tube platform 2 is connected to one side of the frame 1, an inner tube bracket 3 is provided on the inner tube platform 2, a push plate slide 4 is provided in the inner tube bracket 3, a push plate 5 is slidably connected to the push plate slide 4, and the push plate 5 reciprocates in the push plate slide 4 through a power mechanism, and a supporting cylinder 6 is provided at the end of the inner tube platform 2, which is concentric with the inner tube bracket 3, and the inner diameter of the supporting cylinder 6 is equal to the outer diameter of the inner tube, and the supporting cylinder 6 A notch 7 is provided at the bottom, and the push plate 5 can enter the notch 7. The supporting cylinder 6 slides axially through the hydraulic mechanism 14. The other side of the frame 1 is connected to an outer tube platform 8, and an outer tube bracket 10 is provided on the outer tube platform 8. The outer tube bracket 10 is concentrically arranged with the inner tube bracket 3. The outer tube 9 is supported on the outer tube bracket 10. The end of the outer tube 9 contacts the outer tube limit frame 11. The outer tube limit frame 11 is connected to the frame 1, and the side wall of the outer tube limit frame 11 is provided with an inner tube channel 12;

[0022] Place the inner and outer tubes on the inner tube bracket 3 and the outer tube bracket 10 respectively, connect the flange to the outer tube, the hydraulic mechanism 14 presses the supporting cylinder 6 against one end flange, and the other end flange of the outer tube presses against the outer tube limit frame 11, to complete the fixation of the outer tube, turn on the push plate 5 power, the push plate 5 slides along the push plate slide groove 4 to drive the inner tube to slide on the inner tube bracket 3 into the supporting cylinder 6, because the supporting cylinder 6 is provided with a notch 7 at the bottom, the push plate 5 can push one end of the inner tube into the supporting cylinder 6 until the other end of the inner tube contacts the end of the inner tube channel 12, completing the concentric assembly of the inner and outer tubes, and the glue can be injected at this time. When separating the insulation tube, the supporting cylinder 6 is disconnected from the insulation tube by controlling the hydraulic mechanism 14, and the other end of the inner tube is translated out of the inner tube channel 12.

[0023] The power mechanism includes a threaded shaft 13, the threaded shaft 13 is rotatably connected to the frame 1, the threaded shaft 13 is threadedly connected to the push plate 5, and the threaded shaft 13 is connected to the power;

[0024] The power drives the threaded shaft 13 which is axially limited to rotate, and the threaded shaft 13 drives the push plate 5 to move in the push plate sliding groove 4 through the thread.

[0025] The hydraulic mechanism 14 includes a hydraulic cylinder 141, the telescopic end of the hydraulic cylinder 141 is connected to a slide 142, the slide 142 is slidably connected in a slide groove 143, the fixed end of the hydraulic cylinder 141 is connected in the slide groove 143, and the upper end of the slide 142 is connected to the supporting cylinder 6;

[0026] The adjustment is completed by controlling the extension and contraction of the hydraulic cylinder 141 to drive the supporting cylinder 6 to move so as to adapt to the insulation pipes of different lengths.

[0027] The outer tube platform 8 is slidably connected to the frame 1, and the outer tube platform 8 and the frame 1 are respectively connected to the two ends of the hydraulic cylinder 2 15. A plurality of outer tube brackets 10 are provided on the outer tube platform 8, and the hydraulic cylinder 2 15 can switch different outer tube brackets 10 through telescopic arrangement concentrically with the inner tube bracket 3;

[0028] Directly moving the insulation pipe after the injection will affect the foaming quality. The outer pipe platform 8 is controlled by the hydraulic cylinder 15 to move the insulation pipe after the injection. The other outer pipe bracket 10 is concentric with the inner pipe bracket 3. There is no need to move the insulation pipe and it will not affect the production. When the injection of the other insulation pipe is completed, the foaming agent in the previous insulation pipe has been initially solidified and can be removed.

[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are 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 other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A polyurethane thermal insulation pipe production and preparation device, characterized in that: include: A frame (1) is provided, one side of the frame (1) is connected to an inner tube platform (2), an inner tube bracket (3) is provided on the inner tube platform (2), a push plate slide groove (4) is provided in the inner tube bracket (3), a push plate (5) is slidably connected in the push plate slide groove (4), the push plate (5) reciprocates in the push plate slide groove (4) through a power mechanism, a supporting cylinder (6) is provided at the end of the inner tube platform (2) and is concentric with the inner tube bracket (3), the inner diameter of the supporting cylinder (6) is equal to the outer diameter of the inner tube, a notch (7) is provided at the bottom of the supporting cylinder (6), and the push plate (5) The supporting cylinder (6) can enter the notch (7), and the supporting cylinder (6) slides axially through a hydraulic mechanism (14). The other side of the frame (1) is connected to an outer tube platform (8), and an outer tube bracket (10) is provided on the outer tube platform (8). The outer tube bracket (10) is concentrically arranged with the inner tube bracket (3). An outer tube (9) is supported on the outer tube bracket (10), and the end of the outer tube (9) contacts an outer tube limiting frame (11). The outer tube limiting frame (11) is connected to the frame (1), and an inner tube channel (12) is provided on the side wall of the outer tube limiting frame (11).

2. The polyurethane thermal insulation pipe production and preparation device according to claim 1, characterized in that: The power mechanism comprises a threaded shaft (13), the threaded shaft (13) is rotatably connected to the frame (1), the threaded shaft (13) is threadedly connected to the push plate (5), and the threaded shaft (13) is connected to the power.

3. The polyurethane thermal insulation pipe production and preparation device according to claim 1, characterized in that: The hydraulic mechanism (14) comprises a hydraulic cylinder (141), the telescopic end of the hydraulic cylinder (141) is connected to a slide (142), the slide (142) is slidably connected in a slide groove (143), the fixed end of the hydraulic cylinder (141) is connected in the slide groove (143), and the upper end of the slide (142) is connected to a supporting cylinder (6).

4. The polyurethane thermal insulation pipe production and preparation device according to claim 1, characterized in that: The outer tube platform (8) is slidably connected to the frame (1); the outer tube platform (8) and the frame (1) are respectively connected to two ends of the second hydraulic cylinder (15); a plurality of outer tube brackets (10) are provided on the outer tube platform (8); the second hydraulic cylinder (15) can be configured to be concentric with the inner tube bracket (3) by switching between different outer tube brackets (10) through telescopic movement.

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