Filling mold for polyurethane thermal insulation material of thermal insulation pipe

Abstract

The utility model discloses a filling mould for polyurethane thermal insulation materials of a thermal insulation pipe, which relates to the technical field of thermal insulation pipe production and processing and comprises a base, side plates are mounted on two sides of the upper end of the base, a control box is arranged on the front surfaces of the side plates, stabilizing plates are arranged on the outer side walls of the side plates in a penetrating manner, and the stabilizing plates are connected with the control box. A clamping box is installed on the inner side of the stabilizing plate, and a first motor and a second motor are arranged at the upper end of the clamping box. The filling mold has the advantages that the filling mold for the polyurethane thermal insulation material of the thermal insulation pipe can be used for pre-fixing a plastic sleeve and a metal inner pipe, so that subsequent clamping is facilitated, and the plastic sleeves and the metal inner pipes with different diameters can be clamped; the filling mold for the polyurethane thermal insulation material of the thermal insulation pipe can simultaneously drive the clamping boxes on the two sides to clamp and fix a plastic sleeve and a metal inner pipe, and the clamping boxes cannot damage the plastic sleeve and the metal inner pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of production and processing of thermal insulation pipes, in particular to a filling mold for polyurethane thermal insulation materials of thermal insulation pipes. Background Technique

[0002] The polyurethane prefabricated directly buried thermal insulation pipe has good mechanical properties and heat insulation properties. Generally, it can withstand high temperatures of 120 degrees Celsius. Through modification or combination with other heat insulation materials, it can withstand high temperatures of 180 degrees Celsius. It is suitable for the thermal insulation projects of various cold and hot water high and low temperature pipelines. The polyurethane prefabricated directly buried thermal insulation pipe is also called "pipe-in-pipe" and is composed of "two-step method". It is composed of a high-density polyethylene outer protective layer, polyurethane rigid foam thermal insulation material and a steel pipe. The thermal insulation layer material is rigid polyurethane foam with a density of 60 kg / m3 to 80 kg / m3, which fully fills the gap between the steel pipe and the casing, and has a certain bonding strength, so that a firm whole is formed among the steel pipe, the outer casing and the thermal insulation layer. When filling between the steel pipe and the casing, a filling mold for polyurethane thermal insulation materials of the thermal insulation pipe is needed for assistance;

[0003] After retrieval, the patent number is CN211842861U, which discloses a filling mold for polyurethane thermal insulation materials of thermal insulation pipes. The polyurethane thermal insulation material is injected into the cavity formed by the combination of the metal inner pipe and the plastic outer pipe through the filling hole of the left clamping head. There is a plug head in the filling hole of the right clamping head. The excess gas between the metal inner pipe and the plastic outer pipe is discharged through the gap between the fixed ring of the right clamping head and the metal inner pipe until the polyurethane thermal insulation material fills the cavity formed by the combination of the metal inner pipe and the plastic outer pipe. After the polyurethane thermal insulation material is cured, it fills the gap between the metal inner pipe and the plastic outer pipe, thus ensuring the qualification rate of the product. It has the advantages of saving raw materials, reducing costs, short mold filling time and fast filling speed; however, during the process of clamping the outer pipe and the casing, manual support is required to support the outer pipe and the casing until the device completely fixes the outer pipe and the casing, which is time-consuming and laborious. Therefore, we propose a filling mold for polyurethane thermal insulation materials of thermal insulation pipes. Content of the Utility Model

[0004] The purpose of the utility model is to provide a filling mold for polyurethane thermal insulation materials of thermal insulation pipes.

[0005] To solve the problems raised in the above-mentioned background technology, the present utility model provides the following technical solutions: A filling mold for polyurethane thermal insulation materials of a thermal insulation pipe, including a base, on both sides of the upper end of the base are installed side plates, on the front surface of the side plates is provided a control box, the outer side wall of the side plates is penetrated by a stabilizing plate, inside the stabilizing plate is installed a clamping box, on the upper end of the clamping box are respectively provided a first motor and a second motor, at the lower end of the first motor is installed a first moving plate, the outer side wall of the first moving plate is movably connected to the first moving plate, on the outer side wall of the first moving plate is installed a connecting plate, inside the connecting plate is provided a first clamping arc plate, inside the first clamping arc plate is installed a plastic sleeve, on the left side, inside the clamping box is installed a second moving plate, on the right side of the second moving plate is provided a second clamping arc plate, outside the second clamping arc plate is installed a metal inner pipe.

[0006] Preferably, the lower end of the second motor is fixedly connected to a second bidirectional screw, and the second bidirectional screw penetrates through the second moving plate.

[0007] Preferably, a sliding rod is penetrated through the upper end of the second moving plate, and the sliding rod penetrates through the clamping box.

[0008] Preferably, the lower end of the plastic sleeve is movably connected to a supporting arc plate, the lower end of the supporting arc plate is slidably connected to a mounting block, and a bolt is penetrated through the back surface of the mounting block.

[0009] Preferably, a spiral column is installed on the outer side wall of the clamping box, a rotating cylinder is provided on the outer side wall of the spiral column, the outer side of the rotating cylinder is movably connected to a transmission belt, and a pulley is provided inside the transmission belt.

[0010] Preferably, the inside of the pulley is fixedly connected to a rotating rod, and the rotating rod penetrates through the base, and a stepping motor is fixedly connected to the inside of the rotating rod.

[0011] Preferably, an exhaust pipe is fixedly connected to the left side of the right clamping box, and a filling hole is opened on the left side of the left clamping box.

[0012] With the above technical solution, by sleeving the metal inner tube on the second clamping arc plate, the second clamping arc plate provides certain support for the metal inner tube. Then, under the cooperation of the control box and the second motor, the second moving plate is driven by the second bidirectional screw to slide in the left clamping box and move away from each other, so that the second clamping arc plate clamps and fixes the metal inner tube. At the same time, the plastic sleeve is placed on the support arc plate, and the right side of the plastic sleeve contacts the right clamping box. Then, under the cooperation of the control box and the first motor, the first moving plate is driven by the first bidirectional screw to slide in the right clamping box, so as to fix the plastic sleeve through the connecting plate and the first clamping arc plate, and keep the plastic sleeve in a horizontal state through the cooperation with the support arc plate, thus completing the pre-fixation. Then, under the cooperation of the installation block and the bolt, the support arc plate can be replaced according to the diameter of the plastic sleeve, so that the filling mold of the polyurethane thermal insulation material for the thermal insulation pipe can pre-fix the plastic sleeve and the metal inner tube, which is convenient for subsequent clamping and can clamp plastic sleeves and metal inner tubes with different diameters;

[0013] With the above technical solution, by inputting the clamping depth into the control box and then starting the stepping motor by the control box, the stepping motor drives the rotating cylinder to rotate through the transmission belt under the cooperation of the rotating rod and the belt pulley. At this time, when the rotating cylinder rotates, it will push the clamping box to move inward through the spiral column and stop when it moves to the set clamping depth, so as to clamp and fix the plastic sleeve and the metal inner tube for convenient filling. Then, through the cooperation of the stabilizing plate, the stability of the clamping box during movement is enhanced, so that the filling mold of the polyurethane thermal insulation material for the thermal insulation pipe can drive the clamping boxes on both sides to clamp and fix the plastic sleeve and the metal inner tube at the same time, and the clamping box will not damage the plastic sleeve and the metal inner tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of an embodiment of the present utility model;

[0015] Figure 2 is a sectional view of an embodiment of the present utility model;

[0016] Figure 3 is a schematic diagram of the internal structure of the clamping box in an embodiment of the present utility model;

[0017] Figure 4 is a schematic diagram of the connection structure of the stepping motor and the spiral column in an embodiment of the present utility model.

[0018] In the figure: 1, base; 2, side plate; 3, control box; 4, stabilizing plate; 5, clamping box; 6, first motor; 7, first bidirectional screw; 8, first moving plate; 9, connecting plate; 10, first clamping arc plate; 11, plastic sleeve; 12, second motor; 13, second bidirectional screw; 14, second moving plate; 15, sliding rod; 16, second clamping arc plate; 17, metal inner tube; 18, supporting arc plate; 19, mounting block; 20, bolt; 21, stepper motor; 22, rotating rod; 23, pulley; 24, transmission belt; 25, rotating cylinder; 26, spiral column; 27, exhaust pipe. Specific embodiments

[0019] The following further describes the specific embodiments of the present invention in conjunction with the accompanying drawings. It should be noted here that the description of these embodiments is for helping to understand the present invention, but does not constitute a limitation to the present invention. In addition, the technical features involved in the following various embodiments of the present invention can be combined with each other as long as they do not conflict with each other.

[0020] Embodiment 1:

[0021] Please refer to Figures 1-4 , the present invention provides a technical solution: a filling mold for polyurethane thermal insulation material of a thermal insulation pipe, including a base 1, side plates 2 are installed on both sides of the upper end of the base 1, a control box 3 is arranged on the front of the side plates 2, a stabilizing plate 4 is penetrated through the outer side wall of the side plates 2, a clamping box 5 is installed inside the stabilizing plate 4, a first motor 6 and a second motor 12 are respectively arranged at the upper end of the clamping box 5, a first moving plate 8 is installed at the lower end of the first motor 6, the outer side wall of the first moving plate 8 is movably connected to the first moving plate 8, a connecting plate 9 is installed on the outer side wall of the first moving plate 8, a first clamping arc plate 10 is arranged inside the connecting plate 9, a plastic sleeve 11 is installed inside the first clamping arc plate 10, a second moving plate 14 is installed inside the left clamping box 5, a second clamping arc plate 16 is arranged on the right side of the second moving plate 14, and a metal inner tube 17 is installed on the outer side of the second clamping arc plate 16.

[0022] The lower end of the second motor 12 is fixedly connected to a second bidirectional screw 13, and the second bidirectional screw 13 penetrates through the second moving plate 14.

[0023] A sliding rod 15 is penetrated through the upper end of the second moving plate 14, and the sliding rod 15 penetrates through the clamping box 5.

[0024] The lower end of the plastic sleeve 11 is movably connected to a supporting arc plate 18, the lower end of the supporting arc plate 18 is slidably connected to a mounting block 19, and a bolt 20 is penetrated through the back of the mounting block 19.

[0025] During use, the second motor 12 is started through the control box 3, causing the second motor 12 to drive the second bidirectional screw 13 to rotate inside the clamping box 5 on the left. At this time, when the second bidirectional screw 13 rotates, it will drive the second moving plate 14 to slide inside the clamping box 5 and slide on the sliding rod 15 to enhance stability. Thus, the second clamping arc plates 16 stop when they come into contact with each other. Then, the metal inner tube 17 is sleeved on the second clamping arc plates 16, enabling the second clamping arc plates 16 to provide a certain support for the metal inner tube 17. Then, the second motor 12 is started through the control box 3, causing the second bidirectional screw 13 to drive the second moving plate 14 to slide in the clamping box 5 on the left and move away from each other. At this time, the second moving plate 14 will drive the second clamping arc plates 16 to move together, so that the second clamping arc plates 16 clamp and fix the inner wall of the metal inner tube 17. At the same time, the first motor 6 is started through the control box 3, causing the first motor 6 to drive the first bidirectional screw 7 to rotate in the clamping box 5 on the right, so that the first moving plate 8 slides in the clamping box 5 on the right, and thus the connecting plate 9 drives the first clamping arc plates 10 to move away from each other. Then, the plastic sleeve 11 is placed on the support arc plate 18, and the right side of the plastic sleeve 11 is in contact with the center of the clamping box 5 on the right. Then, the first motor 6 is started through the control box 3, causing the first motor 6 to drive the first moving plate 8 to move closer to each other through the first bidirectional screw 7, so that the connecting plate 9 and the first clamping arc plates 10 connected to the first moving plate 8 move closer to each other, thereby fixing the plastic sleeve 11. And through the support arc plate 18, the plastic sleeve 11 is kept in a horizontal state, thus completing the pre-fixation. Then, under the action of the mounting block 19 and the bolt 20, the support arc plate 18 can be replaced according to the diameter of the plastic sleeve 11, enabling the filling mold for the polyurethane thermal insulation material of the thermal insulation pipe to pre-fix the plastic sleeve 11 and the metal inner tube 17, facilitating subsequent clamping, and being able to clamp plastic sleeves 11 and metal inner tubes 17 with different diameters.

[0026] Embodiment 2:

[0027] Please refer to Figures 1-4 , the present utility model provides a technical solution: a filling mold for polyurethane thermal insulation material of a thermal insulation pipe. A spiral column 26 is installed on the outer side wall of the clamping box 5. A rotating cylinder 25 is arranged on the outer side wall of the spiral column 26. A transmission belt 24 is movably connected to the outer side of the rotating cylinder 25. A pulley 23 is arranged on the inner side of the transmission belt 24.

[0028] The rotating rod 22 is fixedly connected to the inner side of the pulley 23 and penetrates through the base 1. The stepping motor 21 is fixedly connected to the inner side of the rotating rod 22.

[0029] An exhaust pipe 27 is fixedly connected to the left side of the clamping box 5 on the right, and a filling hole is opened on the left side of the clamping box 5 on the left.

[0030] Specifically, the depth to be clamped is input into the control box 3 through the lengths of the plastic sleeve 11 and the metal inner tube 17. Then, the stepping motor 21 is started through the control box 3, so that the stepping motor 21 drives the rotating rod 22 to rotate. When the rotating rod 22 rotates, it will drive the pulley 23 to rotate together, so that the pulley 23 drives the rotating cylinder 25 to rotate together through the transmission belt 24. At this time, when the rotating cylinder 25 rotates, the internal screw column 26 will be pushed to move inward. When it moves to the specified depth, it stops, so that the clamping box 5 clamps and fixes the plastic sleeve 11 and the metal inner tube 17, facilitating subsequent filling. At the same time, when the clamping box 5 moves, it will drive the stabilizing plate 4 to slide inside the base 1, strengthening the stability of the clamping box 5 during movement. The filling die of the polyurethane thermal insulation material for the thermal insulation pipe can drive the clamping boxes 5 on both sides to clamp and fix the plastic sleeve 11 and the metal inner tube 17 at the same time, and will not damage the plastic sleeve 11 and the metal inner tube 17 by the clamping box 5.

[0031] The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, without departing from the principle and spirit of the present invention, various changes, modifications, substitutions, and variations of these embodiments still fall within the protection scope of the present invention.

Claims

1. A filling mold for polyurethane thermal insulation material of a thermal insulation pipe, comprising a base (1), characterized in that: On both sides of the upper end of the base (1), side plates (2) are installed. A control box (3) is arranged on the front surface of the side plate (2). A stabilizing plate (4) penetrates through the outer side wall of the side plate (2). A clamping box (5) is installed inside the stabilizing plate (4). A first motor (6) and a second motor (12) are respectively arranged at the upper end of the clamping box (5). A first moving plate (8) is installed at the lower end of the first motor (6). The outer side wall of the first moving plate (8) is movably connected to the first moving plate (8). A connecting plate (9) is installed on the outer side wall of the first moving plate (8). A first clamping arc plate (10) is arranged inside the connecting plate (9). A plastic sleeve (11) is installed inside the first clamping arc plate (10). A second moving plate (14) is installed inside the left clamping box (5). A second clamping arc plate (16) is arranged on the right side of the second moving plate (14). A metal inner tube (17) is installed on the outer side of the second clamping arc plate (16).

2. The filling mold for the polyurethane thermal insulation material of the thermal insulation pipe according to claim 1, characterized in that: The lower end of the second motor (12) is fixedly connected to a second bidirectional screw (13), and the second bidirectional screw (13) penetrates through the second moving plate (14).

3. The filling mold for the polyurethane thermal insulation material of the thermal insulation pipe according to claim 2, characterized in that: A slide bar (15) penetrates through the upper end of the second moving plate (14), and the slide bar (15) penetrates through the clamping box (5).

4. A filling mold for polyurethane thermal insulation material of a thermal insulation pipe according to claim 1, characterized in that: The lower end of the plastic sleeve (11) is movably connected to a support arc plate (18). The lower end of the support arc plate (18) is slidably connected to a mounting block (19). A bolt (20) penetrates through the back surface of the mounting block (19).

5. A filling mold for polyurethane thermal insulation material of a thermal insulation pipe according to claim 1, characterized in that: A spiral column (26) is installed on the outer side wall of the clamping box (5). A rotating cylinder (25) is arranged on the outer side wall of the spiral column (26). A transmission belt (24) is movably connected to the outer side of the rotating cylinder (25). A pulley (23) is arranged inside the transmission belt (24).

6. The filling mold for the polyurethane thermal insulation material of the thermal insulation pipe according to claim 5, characterized in that: The rotating rod (22) is fixedly connected to the inside of the pulley (23), and the rotating rod (22) penetrates through the base (1). A stepping motor (21) is fixedly connected to the inside of the rotating rod (22).

7. The filling mold for the polyurethane thermal insulation material of the thermal insulation pipe according to claim 5, characterized in that: An exhaust pipe (27) is fixedly connected to the left side of the right clamping box (5), and a filling hole is opened on the left side of the left clamping box (5).

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