Spraying device for producing thermal insulation pipe

Abstract

The utility model discloses a spraying device for producing a thermal insulation pipe, which comprises a U-shaped spraying equipment base, two groups of guide sliding rods which are vertically arranged are fixedly connected to the inner side of the spraying equipment base, a sliding base is arranged on the guide sliding rods in a sliding manner, and the spraying device further comprises a surrounding type spraying unit; the surrounding type spraying unit comprises an L-shaped support fixedly connected to the lower portion of the sliding base, the tail end of the L-shaped support is fixedly connected with a first spraying head, the upper end of the first spraying head is fixedly connected with a hinge frame, the hinge frame is rotationally connected with a rotating block through a rotating rod, and the upper portion of the rotating block is fixedly connected with a second spraying head. The first spray head and the second spray head are both arranged in a half-ring shape, and a plurality of sets of spray holes are formed in the inner side of the first spray head and the inner side of the second spray head. The utility model belongs to the technical field of thermal insulation pipe production, and effectively solves the problems that a spraying device for a thermal insulation pipe lacks a function of uniformly spraying a fixed thermal insulation pipe and is inconvenient to operate and control.

Description

Technical Field

[0001] This utility model belongs to the field of thermal insulation pipe production technology, specifically referring to a spraying device for producing thermal insulation pipes. Background Technology

[0002] Insulated pipes consist of a working steel pipe, a sprayed polyurethane insulation layer, and a spiral wound outer protective layer. To ensure the quality of the insulated pipes, a spraying device is needed during production to spray the polyurethane insulation layer onto the pipes. In existing technology, the insulated pipes are typically placed on a conveying device, which then rotates and feeds the working steel pipe into the spraying device. The spray gun evenly sprays polyurethane onto the exterior of the working steel pipe.

[0003] Rotating the insulation pipe as a whole is inconvenient and increases the trouble of spraying. This technical solution proposes a device that can achieve all-round spraying of the insulation pipe in a fixed position. Utility Model Content

[0004] The technical problem this invention aims to solve is that the spraying device for thermal insulation pipes lacks the function of uniformly spraying fixed thermal insulation pipes, making it inconvenient to operate and control.

[0005] The technical solution adopted by this utility model is as follows:

[0006] The present invention discloses a spraying device for producing thermal insulation pipes, including a U-shaped spraying equipment base, two sets of vertically arranged guide slide rods fixed to the inner side of the spraying equipment base, a sliding base slidably mounted on the guide slide rods, and an enclosed spraying unit.

[0007] The enclosed spraying unit includes an L-shaped bracket fixed to the lower part of the sliding base. A first spray head is fixed to the end of the L-shaped bracket. A hinge frame is fixed to the upper end of the first spray head. A rotating block is rotatably connected to the hinge frame via a rotating rod. A second spray head is fixed to the upper part of the rotating block.

[0008] Both the first and the second nozzles are arranged in a half-ring shape. Several sets of spray holes are opened on the inner side of both the first and the second nozzles. After the rotating block is rotated, the first and the second nozzles can be combined into a ring shape to wrap the insulation pipe for spraying.

[0009] Furthermore, the rotation angle between the rotating block and the hinge frame is 180 degrees.

[0010] Furthermore, a polyurethane spraying tank is fixed to one side of the sliding base, and a pump is provided on the side of the polyurethane spraying tank. The outlet end of the pump is connected to two sets of telescopic hoses through a water distribution valve, and the other ends of the two sets of telescopic hoses are respectively connected to nozzle one and nozzle two.

[0011] Furthermore, a reciprocating motor passes through the side of the base of the spraying equipment, and a lead screw is fixedly connected to the output shaft of the reciprocating motor. The other end of the lead screw is rotatably mounted on the inner wall of the other side of the base of the spraying equipment. A sliding plate fixed to the other side of the sliding base is slidably mounted on the lead screw to drive the spraying equipment to move.

[0012] Furthermore, electric push rods are inserted through both sides of the base of the spraying equipment. A limiting plate is fixed to the output end of the electric push rod. The limiting plate is provided with a circular protrusion for locking into the openings on both sides of the insulation pipe for fixation.

[0013] Furthermore, a guide rod is fixedly connected to the side of the limiting plate away from the circular protrusion, and is slidably disposed on the side wall of the base of the spraying equipment, for use in conjunction with the limiting plate to support the insulation pipe.

[0014] The beneficial effects of this utility model by adopting the above structure are as follows:

[0015] 1. By setting two sets of semi-circular arc-shaped spraying mechanisms, they can be combined into a ring shape to wrap around the outside of the insulation pipe, achieving rapid overall spraying;

[0016] 2. The spraying mechanism is connected by a rotating mechanism, which makes opening and closing easy and convenient, and facilitates the removal and placement of the insulation pipe from the spraying equipment, thereby improving the efficiency of operation and production. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0018] Figure 2 This is a reference diagram showing the usage state from another perspective of an embodiment of this utility model;

[0019] Figure 3 This is a schematic diagram illustrating the fixing operation of the insulation pipe and the limiting plate.

[0020] Figure 4 This is a reference diagram showing the usage status of the enclosed spraying unit.

[0021] Figure 5 for Figure 4 A magnified view of part A in the middle;

[0022] Figure 6 This is a reference diagram showing the operating status of the reciprocating motor and lead screw.

[0023] The components include: 1. Spraying equipment base; 2. Guide slide rod; 21. Sliding base; 22. Sliding plate; 3. L-shaped bracket; 31. Nozzle 1; 32. Hinged frame; 33. Rotating block; 34. Nozzle 2; 35. Spray hole; 4. Polyurethane spraying tank; 41. Pump; 42. Water distribution valve; 43. Telescopic hose; 5. Reciprocating motor; 51. Lead screw; 6. Electric push rod; 61. Limiting plate; 62. Circular protrusion; 63. Insulation pipe; 64. Guide support rod. Detailed Implementation

[0024] like Figure 1 , 2 As shown in Figure 4, the present invention proposes a spraying device for producing thermal insulation pipes, including a U-shaped spraying equipment base 1, two sets of vertically arranged guide slide rods 2 fixed to the inner side of the spraying equipment base 1, a sliding base 21 slidably mounted on the guide slide rods 2, and also includes an enclosed spraying unit.

[0025] The enclosed spraying unit includes an L-shaped bracket 3 fixed to the lower part of the sliding base 21. A first nozzle 31 is fixed to the end of the L-shaped bracket 3. A hinge frame 32 is fixed to the upper end of the first nozzle 31. A rotating block 33 is rotatably connected to the hinge frame 32 via a rotating rod. A second nozzle 34 is fixed to the upper part of the rotating block 33. Both the first nozzle 31 and the second nozzle 34 are arranged in a half-ring shape. Several sets of spray holes 35 are opened on the inner side of both the first nozzle 31 and the second nozzle 34. After the rotating block 33 rotates, it can combine the first nozzle 31 and the second nozzle 34 into a ring shape to wrap the insulation pipe and achieve full-angle spraying. The rotation angle between the rotating block 33 and the hinge frame 32 is 180 degrees. After the first nozzle 31 and the second nozzle 34 are opened, as shown in the figure, it is convenient to place and remove the insulation pipe.

[0026] like Figure 1 , 2 As shown in Figure 5, a polyurethane spraying tank 4 is fixed to one side of the sliding base 21. A pump 41 is provided on the side of the polyurethane spraying tank 4. The outlet end of the pump 41 is connected to two sets of telescopic hoses 43 through a water distribution valve 42. The other ends of the two sets of telescopic hoses 43 are respectively connected to nozzle 1 31 and nozzle 2 34. The polyurethane raw material in the polyurethane spraying tank 4 is extracted by the pump 41 and divided into the two sets of telescopic hoses 43 by the water distribution valve 42, and injected into nozzle 1 31 and nozzle 2 34 respectively, and sprayed onto the outer wall of the insulation pipe through the spray hole 35.

[0027] It should be noted that when the nozzle 34 is used in the state shown in the figure, the telescopic hose 43 connected to it can extend and retract accordingly, which can ensure the continuity of the liquid and will not have the effect of limiting the position.

[0028] like Figure 6As shown, a reciprocating motor 5 passes through the side of the spraying equipment base 1. A lead screw 51 is fixedly connected to the output shaft of the reciprocating motor 5. The other end of the lead screw 51 is rotatably mounted on the inner wall of the other side of the spraying equipment base 1. A sliding plate 22 is slidably mounted on the lead screw 51 and fixed to the other side of the sliding base 21. This is used to drive the spraying equipment to move. By controlling the lead screw 51 to work through the reciprocating motor 5, the sliding plate 22 slides on the lead screw 51, while simultaneously pulling the sliding base 21 to slide on the guide slide rod 2, thereby adjusting the spraying position of the enclosed spraying unit.

[0029] like Figure 1 , 3 As shown, electric push rods 6 penetrate both sides of the spraying equipment base 1. A limiting plate 61 is fixedly connected to the output end of each electric push rod 6, and the limiting plate 61 has a circular protrusion 62. A guide rod 64, penetrating and slidably disposed on the side wall of the spraying equipment base 1, is fixedly connected to the side of the limiting plate 61 away from the circular protrusion 62, and is used to support the insulation pipe in conjunction with the limiting plate 61. In actual use, the user hoists the insulation pipe to the installation position shown in the figure. The electric push rods 6 on both sides operate, extending their output ends and pushing the limiting plate 61 to move. The circular protrusion 62 engages with the openings on both sides of the insulation pipe for fixation. During the movement of the limiting plate 61, the guide rod 64 slides on the spraying equipment base 1, providing guidance and support. This is the entire usage process of a spraying device for producing insulation pipes.

[0030] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A kind of production insulating tube spraying device, including the spraying equipment base (1) of U shape, the inside vertical arrangement of two groups of guide slide bar (2) is fixed with in spraying equipment base (1), the sliding base (21) of sliding is equipped on the guide slide bar (2), it is characterized by: Also include the surrounding spraying unit; The surrounding spraying unit includes an L-shaped support (3) fixed at the lower part of the sliding base (21), the end of the L-shaped support (3) is fixed with a spray head one (31), the upper end of the spray head one (31) is fixed with a hinged frame (32), the hinged frame (32) is rotatably connected with a rotating block (33) through a rotating rod, the upper part of the rotating block (33) is fixed with a spray head two (34); The spray head one (31) and the spray head two (34) are both arranged in a half circular ring shape, a plurality of groups of spray holes (35) are formed in the inner side of the spray head one (31) and the spray head two (34), and the rotating block (33) can combine the spray head one (31) and the spray head two (34) into a circular ring shape after rotating, so as to wrap the heat preservation pipe for spraying.

2. The apparatus for producing a heat-insulating tube according to claim 1, wherein: The rotating angle between the rotating block (33) and the hinged frame (32) is one hundred and eighty degrees.

3. The apparatus for producing a heat-preservation tube according to claim 2, wherein: One side of the sliding base (21) is fixed with a polyurethane spraying tank (4), the side of the polyurethane spraying tank (4) is provided with a pump (41), the liquid outlet end of the pump (41) is communicated with two groups of telescopic hoses (43) through a water distribution valve (42), the other ends of the two groups of telescopic hoses (43) are respectively communicated with the spray head one (31) and the spray head two (34).

4. The apparatus for producing a heat-insulating tube according to claim 3, wherein: The side of the spraying equipment base (1) is penetrated by a reciprocating motor (5), the output shaft of the reciprocating motor (5) is fixed with a lead screw (51), the other end of the lead screw (51) is rotatably arranged on the inner wall of the other side of the spraying equipment base (1), the lead screw (51) is slidably provided with a sliding plate (22) fixed on the other side of the sliding base (21), which is used to drive the spraying equipment to move.

5. The apparatus for producing a heat-insulating tube according to claim 4, wherein: The both sides of the spraying equipment base (1) are penetrated by an electric push rod (6), the output end of the electric push rod (6) is fixed with a limiting disc (61), the limiting disc (61) is provided with a circular protrusion (62), which is used to be clamped into the opening part on both sides of the heat preservation pipe for fixation.

6. The apparatus for producing a heat retaining tube according to claim 5, wherein: The side of the limiting disc (61) away from the circular protrusion (62) is fixed with a guide support (64) penetrating and slidably arranged in the side wall of the spraying equipment base (1), which is used to cooperate with the limiting disc (61) to support the heat preservation pipe.

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