Continuous spraying device for polyurethane thermal insulation pipe

Abstract

The utility model discloses a polyurethane thermal insulation pipe continuous spraying device which comprises an installation frame, a moving device is arranged on the installation frame, a clamping device is connected to the moving device in a rotating mode, the clamping device comprises a driving device and two clamping assemblies, a spraying pipe is arranged between the two clamping assemblies, the spraying pipe and the clamping assemblies are coaxially arranged, and the driving device drives the spraying pipe to rotate. A rotating device is fixedly connected outside the spraying pipe; according to the continuous spraying device, continuous spraying is achieved, time waste caused by discontinuous spraying in a traditional spraying device is avoided, and the production efficiency is greatly improved; through the arrangement of the clamping assembly, the polyurethane thermal insulation pipes of different sizes can be fixed, and the universality and applicability of the device are enhanced; the rotating device is arranged outside the spraying pipe, so that the spraying head can rotate, each part of the polyurethane thermal insulation pipe can be sprayed, and the spraying uniformity is remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of polyurethane insulating pipes, in particular to a continuous spraying device for polyurethane insulating pipes. Background Technique

[0002] In the current production industry of polyurethane insulating pipes, polyurethane foam is widely used as the insulating material for pipes due to its excellent heat insulation performance. In traditional processes, polyurethane foam is usually sprayed on the outer surface of the pipes manually or semi-automatically to form a dense insulating layer.

[0003] Most of the existing spraying devices for polyurethane insulating pipes cannot achieve continuous spraying, resulting in low spraying operation efficiency. The intermittent operations in the production process not only affect the production progress but also may cause quality problems such as uneven coating and inconsistent thickness at the intermittent spraying points; in terms of fixing the insulating pipes, the existing devices can often only adapt to insulating pipes of a single size and lack effective fixing means for insulating pipes of different sizes, which greatly limits the flexibility and diversity of production; in addition, the existing spraying pipes are usually fixedly arranged and cannot rotate, which makes it difficult to ensure the uniformity of spraying and easily forms a situation where the spraying is too thick or too thin locally on the surface of the insulating pipe, affecting the heat insulation performance and appearance quality of the insulating pipe. Content of the Utility Model

[0004] The purpose of the utility model is to provide a continuous spraying device for polyurethane insulating pipes to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A continuous spraying device for a polyurethane insulating pipe, comprising a mounting frame, a moving device is arranged on the mounting frame, a clamping device is rotatably connected to the moving device, the clamping device includes a driving device and two clamping components, a spraying pipe is arranged between the two clamping components, the spraying pipe is coaxially arranged with the clamping components, and a rotating device is fixedly connected to the outside of the spraying pipe; the rotating device includes a first gear, an annular slider, a connecting block, a connecting plate, a second gear, a rotating shaft, a first fixing seat, a worm gear, a worm, a second fixing seat, a third motor, and a mounting table. The inner wall of the first gear is fixedly connected to the spraying pipe. Opposite annular chutes are arranged on two side walls of the first gear. Flanges are arranged at the edges of the annular chutes. The flanges are distributed circumferentially along the annular chutes. An annular slider is slidably connected in the annular groove. Connecting blocks are fixedly connected to both sides of the annular slider. A connecting plate is fixedly connected to the connecting block. The upper end of the connecting plate is fixedly connected to the mounting frame. A second gear is meshed and connected to one side of the first gear. A rotating shaft is fixedly connected inside the second gear. One end of the rotating shaft is rotatably connected to a first fixing seat. The lower end of the first fixing seat is fixedly connected to the mounting table. The other end of the rotating shaft is fixedly connected to a worm gear. A worm is meshed and connected to one side of the worm gear. The two sides of the worm are rotatably connected to a second fixing seat. The bottom of the second fixing seat is fixedly connected to the mounting table. One end of the worm passes through the second fixing seat and is fixedly connected to the output end of the third motor. The third motor is fixedly connected to the second fixing seat.

[0007] As a further scheme of the utility model: the mounting frame includes a workbench, side plates, a top plate and legs. One side of the workbench is fixedly connected to a side plate. The top of the side plate is fixedly connected to a top plate. Four legs are fixedly connected to the four corners below the workbench.

[0008] As a further scheme of the utility model: a first installation groove is arranged on the workbench. The moving device includes a first lead screw, a first motor and a first nut. The first lead screw is rotatably connected in the first installation groove. One end of the first lead screw passes through the first installation groove and is fixedly connected to the output end of the first motor. The first motor is fixedly connected to the mounting frame. Two first nuts are threadedly connected to the first lead screw.

[0009] As a further scheme of the utility model: the driving device includes a moving plate, a second lead screw, a second motor, a second nut, a sliding sleeve and a support block. The bottom of the moving plate is fixedly connected to the two first nuts. A second installation groove is arranged inside the moving plate. A second lead screw is rotatably connected in the second installation groove. One end of the second lead screw passes through the moving plate and is fixedly connected to the output end of the second motor. The second motor is fixedly connected to the moving plate. One side of the second lead screw has threads, and the other side is a smooth round rod. A second nut is arranged outside the threaded side of the second lead screw. The second nut is threadedly connected to the second lead screw. A sliding sleeve is sleeved on the other side of the second lead screw. The sliding sleeve is rotatably connected to the second lead screw. The bottom of the sliding sleeve is fixedly connected to the moving plate. Support blocks are fixedly connected to the upper ends of the second nut and the sliding sleeve.

[0010] As a further solution of the present utility model: The clamping assembly includes a fixed ring, a backing plate, a pressing plate, a third lead screw, a limiting rod and a turntable. The fixed ring is fixedly connected to the top end of the support block. The bottom of the inner part of the fixed ring is fixedly connected with the backing plate. A pressing plate is arranged above the backing plate. The upper end of the pressing plate is rotatably connected with the third lead screw. The third lead screw passes through the fixed ring and is threadedly connected with the fixed ring. The upper end of the third lead screw is fixedly connected with the turntable. Limiting rods are oppositely arranged on both sides of the third lead screw. The limiting rods pass through the fixed ring and are slidably connected with the fixed ring. The bottom of the limiting rod is fixedly connected with the pressing plate.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: A continuous spraying device for polyurethane insulation pipes realizes continuous spraying, avoids the time waste caused by spraying interruption in traditional spraying devices, and greatly improves production efficiency; Through the setting of the clamping assembly, it is possible to fix polyurethane insulation pipes of different sizes, enhancing the versatility and applicability of the device; By arranging a rotating device outside the spraying pipe, the spraying head can be rotated, enabling every part of the polyurethane insulation pipe to be sprayed, significantly increasing the uniformity of spraying. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic structural diagram of a continuous spraying device for polyurethane insulation pipes.

[0013] Figure 2 It is a schematic structural diagram of another angle of a continuous spraying device for polyurethane insulation pipes.

[0014] Figure 3 It is a schematic structural diagram of yet another angle of a continuous spraying device for polyurethane insulation pipes.

[0015] Figure 4 It is a sectional view of a continuous spraying device for polyurethane insulation pipes.

[0016] In the figure: 1. Mounting frame; 11. Workbench; 12. Side plate; 13. Top plate; 14. Leg; 15. First installation groove; 2. Moving device; 21. First lead screw; 22. First motor; 23. First nut; 3. Clamping device; 31. Driving device; 311. Moving plate; 312. Second lead screw; 313. Second motor; 314. Second nut; 315. Sliding sleeve; 316. Support block; 32. Clamping assembly; 321. Fixed ring; 322. Backing plate; 323. Pressing plate; 324. Third lead screw; 325. Limiting rod; 326. Turntable; 4. Spraying pipe; 41. Spraying head; 5. Rotating device; 51. First gear; 52. Annular slider; 53. Connecting block; 54. Connecting plate; 55. Second gear; 56. Rotating shaft; 57. First fixing seat; 58. Worm gear; 59. Worm; 510. Second fixing seat; 511. Third motor; 512. Installation table. DETAILED DESCRIPTION OF THE INVENTION

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

[0018] Please refer to Figures 1 to 4 , in the embodiment of the present utility model, a continuous spraying device for a polyurethane insulation pipe includes an installation frame 1. A moving device 2 is provided on the installation frame 1. A clamping device 3 is rotatably connected to the moving device 2. The clamping device 3 includes a driving device 31 and two clamping components 32. A spraying pipe 4 is provided between the two clamping components 32. The spraying pipe 4 is coaxially arranged with the clamping components 32. A rotating device 5 is fixedly connected to the outside of the spraying pipe 4.

[0019] The installation frame 1 includes a workbench 11, side plates 12, a top plate 13 and legs 14. A side plate 12 is fixedly connected to one side of the workbench 11. A top plate 13 is fixedly connected to the top of the side plate 12. Four legs 14 are fixedly connected to the four corners below the workbench 11.

[0020] A first installation groove 15 is provided on the workbench 11. The moving device 2 includes a first lead screw 21, a first motor 22 and a first nut 23. The first lead screw 21 is rotatably connected in the first installation groove 15. One end of the first lead screw 21 passes through the first installation groove 15 and is fixedly connected to the output end of the first motor 22. The first motor 22 is fixedly connected to the installation frame 1. Two first nuts 23 are threadedly connected to the first lead screw 21.

[0021] The driving device 31 includes a moving plate 311, a second lead screw 312, a second motor 313, a second nut 314, a sliding sleeve 315 and a support block 316. The bottom of the moving plate 311 is fixedly connected to the two first nuts 23. A second installation groove 317 is provided in the moving plate 311. The second lead screw 312 is rotatably connected in the second installation groove 317. One end of the second lead screw 312 passes through the moving plate 311 and is fixedly connected to the output end of the second motor 313. The second motor 313 is fixedly connected to the moving plate 311. One side of the second lead screw 312 has a thread, and the other side is a smooth round rod. A second nut 314 is provided outside the threaded side of the second lead screw 312. The second nut 314 is threadedly connected to the second lead screw 312. The other side of the second lead screw 312 is sleeved with a sliding sleeve 315. The sliding sleeve 315 is rotatably connected to the second lead screw 312. The bottom of the sliding sleeve 315 is fixedly connected to the moving plate 311. Support blocks 316 are fixedly connected to the upper ends of the second nut 314 and the sliding sleeve 315.

[0022] The clamping assembly 32 includes a fixed ring 321, a backing plate 322, a pressing plate 323, a third lead screw 324, a limiting rod 325 and a turntable 326. The fixed ring 321 is fixedly connected to the top end of the support block 316. The inner bottom of the fixed ring 321 is fixedly connected with the backing plate 322. Above the backing plate 322 is provided with the pressing plate 323. The upper end of the pressing plate 323 is rotatably connected with the third lead screw 324. The third lead screw 324 passes through the fixed ring 321 and is threadedly connected with the fixed ring 321. The upper end of the third lead screw 324 is fixedly connected with the turntable 326. On both sides of the third lead screw 324, the limiting rods 325 are oppositely arranged. The limiting rods 325 pass through the fixed ring 321 and are slidably connected with the fixed ring 321. The bottom of the limiting rod 325 is fixedly connected with the pressing plate 323.

[0023] Before spraying the polyurethane insulating pipe, it needs to be fixed first. First, adjust the distance between the clamping assemblies 32 according to the length of the polyurethane insulating pipe. By starting the driving device 31, drive one side of the clamping assembly 32 to move. Then place the polyurethane insulating pipe in the two clamping assemblies 32, and then start the clamping assembly 32 to fix the polyurethane insulating pipe.

[0024] The rotating device 5 includes a first gear 51, an annular slider 52, a connecting block 53, a connecting plate 54, a second gear 55, a rotating shaft 56, a first fixing seat 57, a worm gear 58, a worm 59, a second fixing seat 510, a third motor 511, and an installation table 512. The inner wall of the first gear 51 is fixedly connected with the spraying pipe 4. On the two side walls of the first gear 51, annular chutes are oppositely arranged. At the edge of the annular chute, there are flanges. The flanges are distributed circumferentially along the annular chute. An annular slider 52 is slidably connected in the annular groove. The flanges limit the sliding of the annular slider 52 to prevent the annular slider 52 from sliding out. On both sides of the annular slider 52, connecting blocks 53 are fixedly connected. On the connecting block 53, a connecting plate 54 is fixedly connected. The upper end of the connecting plate 54 is fixedly connected with the mounting frame 1. On one side of the first gear 51, a second gear 55 is meshingly connected. Inside the second gear 55, a rotating shaft 56 is fixedly connected. One end of the rotating shaft 56 is rotatably connected with a first fixing seat 57. The lower end of the first fixing seat 57 is fixedly connected to the installation table 512. The other end of the rotating shaft 56 is fixedly connected with a worm gear 58. On one side of the worm gear 58, a worm 59 is meshingly connected. On both sides of the worm 59, second fixing seats 510 are rotatably connected. The bottom of the second fixing seat 510 is fixedly connected to the installation table 512. One end of the worm 59 passes through the second fixing seat 510 and is fixedly connected with the output end of the third motor 511. The third motor 511 is fixedly connected with the second fixing seat 510.

[0025] A plurality of spray heads 41 are fixedly connected to the spray pipe 4. In order to enable the plurality of spray heads 41 to spray evenly on the polyurethane insulation pipe, a rotating device 5 is provided. The rotating device 5 can drive the spray pipe 4 and the spray heads 41 to rotate back and forth at any angle, so that every part of the polyurethane insulation pipe can be sprayed. During use, the rotation angle and speed can be determined according to the moving speed of the moving device 2 and the number of spray heads 41, so as to achieve the effect of evenly spraying the polyurethane insulation pipe. When starting the rotating device 5, start the third motor 511. The third motor 511 drives the worm 59 to rotate. The worm 59 drives the worm wheel 58 to rotate. The worm wheel 58 drives the rotating shaft 56 and the second gear 55 to rotate. The second gear 55 drives the first gear 51 to rotate, thereby driving the spray pipe 4 and the spray heads 41 to rotate. When the spray head 41 sprays to the initial position of the adjacent spray head 41, the third motor 511 can be started to reverse, and continue to spray other positions to ensure the uniformity of the spraying of the polyurethane insulation pipe.

[0026] The working principle of the present utility model is as follows: When using a continuous spraying device for a polyurethane insulation pipe, the polyurethane insulation pipe needs to be fixed first. First, adjust the distance between the clamping components 32 according to the length of the polyurethane insulation pipe. By starting the driving device 31, drive one side of the clamping component 32 to move. Then pass the polyurethane insulation pipe through the clamping components 32 and the middle spray pipe 4, place the polyurethane insulation pipe in the two clamping components 32, and then rotate the turntable 326 of the clamping component 32 to make the pressing plate 323 abut against the polyurethane insulation pipe, thereby fixing the polyurethane insulation pipe; then start the moving device 2, the rotating device 5 and the spray heads 41. The moving device 2 drives the polyurethane insulation pipe to move in the spray pipe 4, and the spray heads 41 rotate driven by the rotating device 5 to spray the moving polyurethane insulation pipe, which can ensure the uniformity of the spraying of the polyurethane insulation pipe.

[0027] Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they 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 polyurethane thermal insulation pipe continuous spraying device, comprising a mounting frame (1), characterized in that: A moving device (2) is provided on the mounting frame (1), a clamping device (3) is rotatably connected to the moving device (2), the clamping device (3) comprises a driving device (31) and two clamping assemblies (32), a spray pipe (4) is provided between the two clamping assemblies (32), the spray pipe (4) and the clamping assembly (32) are coaxially arranged, and a rotating device (5) is fixedly connected to the outside of the spray pipe (4); the rotating device (5) comprises a first gear (51), an annular slider (52), and a connecting block (53). , a connecting plate (54), a second gear (55), a rotating shaft (56), a first fixed seat (57), a worm wheel (58), a worm (59), a second fixed seat (510), a third motor (511), and a mounting platform (512); the inner wall of the first gear (51) is fixedly connected to the spray pipe (4); an annular groove is oppositely arranged on two side walls of the first gear (51); a folded edge is arranged at the edge of the annular groove; the folded edge is distributed along the circumference of the annular groove; an annular slider is slidably connected in the annular groove (52), both sides of the annular slider (52) are fixedly connected with connecting blocks (53), the connecting blocks (53) are fixedly connected with connecting plates (54), the upper end of the connecting plates (54) is fixedly connected with the mounting frame (1), one side of the first gear (51) is meshingly connected with a second gear (55), the second gear (55) is fixedly connected with a rotating shaft (56), one end of the rotating shaft (56) is rotatably connected with a first fixed seat (57), and the lower end of the first fixed seat (57) is fixedly connected to the mounting platform (5 12), the other end of the rotating shaft (56) is fixedly connected to a worm wheel (58), one side of the worm wheel (58) is meshingly connected to a worm (59), both sides of the worm (59) are rotatably connected to a second fixed seat (510), the bottom of the second fixed seat (510) is fixedly connected to a mounting platform (512), one end of the worm (59) passes through the second fixed seat (510) and is fixedly connected to an output end of a third motor (511), and the third motor (511) is fixedly connected to the second fixed seat (510).

2. A polyurethane thermal insulation pipe continuous spraying device according to claim 1, characterized in that: The mounting frame (1) comprises a workbench (11), a side plate (12), a top plate (13) and legs (14); one side of the workbench (11) is fixedly connected to the side plate (12); the top of the side plate (12) is fixedly connected to the top plate (13); and four legs (14) are fixedly connected to the four corners below the workbench (11).

3. A polyurethane thermal insulation pipe continuous spraying device according to claim 2, characterized in that: A first mounting groove (15) is provided on the workbench (11), and the moving device (2) comprises a first screw rod (21), a first motor (22) and a first screw sleeve (23). The first screw rod (21) is rotatably connected in the first mounting groove (15), one end of the first screw rod (21) passes through the first mounting groove (15) and is fixedly connected to the output end of the first motor (22), the first motor (22) is fixedly connected to the mounting frame (1), and two first screw sleeves (23) are threadedly connected to the first screw rod (21).

4. A polyurethane thermal insulation pipe continuous spraying device according to claim 3, characterized in that: The driving device (31) comprises a moving plate (311), a second screw rod (312), a second motor (313), a second screw sleeve (314), a sliding sleeve (315), and a supporting block (316); the bottom of the moving plate (311) is fixedly connected to the two first screw sleeves (23); a second mounting groove (317) is provided in the moving plate (311); a second screw rod (312) is rotatably connected in the second mounting groove (317); one end of the second screw rod (312) passes through the moving plate (311) and is fixedly connected to the output end of the second motor (313); the second motor (313) is connected to the moving plate (311) and the output end of the second motor (313); The movable plate (311) is fixedly connected, one side of the second screw rod (312) is provided with a thread, and the other side is a smooth round rod, the second screw rod (312) is provided with a second screw sleeve (314) on the outside of the threaded side, the second screw sleeve (314) is threadedly connected to the second screw rod (312), the other side of the second screw rod (312) is sleeved with a sliding sleeve (315), the sliding sleeve (315) is rotatably connected to the second screw rod (312), the bottom of the sliding sleeve (315) is fixedly connected to the movable plate (311), and the upper ends of the second screw sleeve (314) and the sliding sleeve (315) are fixedly connected to a support block (316).

5. A polyurethane thermal insulation pipe continuous spraying device according to claim 4, characterized in that: The clamping assembly (32) comprises a fixing ring (321), a pad (322), a pressure plate (323), a third screw rod (324), a limiting rod (325) and a rotating disk (326); the fixing ring (321) is fixedly connected to the top of the supporting block (316); the bottom of the fixing ring (321) is fixedly connected to the pad (322); a pressure plate (323) is arranged above the pad (322); the upper end of the pressure plate (323) is rotatably connected to the third screw rod (324), the third screw rod (324) passes through the fixing ring (321) and is threadedly connected to the fixing ring (321), the upper end of the third screw rod (324) is fixedly connected to a rotating disk (326), and limiting rods (325) are provided on opposite sides of the third screw rod (324), the limiting rod (325) passes through the fixing ring (321) and is slidably connected to the fixing ring (321), and the bottom of the limiting rod (325) is fixedly connected to the pressure plate (323).

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