Rigid polyurethane spraying accurate control device
By introducing quantitative components into the rigid polyurethane spraying device, the problem of difficult spraying flow rate is solved, precise control of spraying speed is achieved, paint waste is reduced, and the practicality of the device is improved.
Patent Information
- Application Number
- CN202422068843.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-26
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-08-26
AI Technical Summary
Existing rigid polyurethane spraying devices are difficult to accurately control the spray flow rate, resulting in waste of paint.
A rigid polyurethane spraying device including a quantitative component is designed. The quantitative component consists of a disc, a rotating disc, a rotating shaft, a spring, a swing rod and an extrusion ring. Through the cooperation of a robotic arm and an infrared sensor, precise control of the spraying speed is achieved.
Effectively prevents the spray flow rate from being too fast, reduces paint waste, and improves the accuracy and practicality of spraying.
Smart Images
Figure CN223055873U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of polyurethane spraying, in particular to a precise control device for rigid polyurethane spraying. Background Technique
[0002] Rigid foam sprayed polyurethane is a high molecular thermosetting polymer and an excellent thermal insulation material. Its thermal conductivity is 0.015 - 0.025 W / (m·k). Permanent mechanical anchoring, temporary fixing, and fixing of pipes passing through walls often cause local thermal bridges. However, when using the polyurethane spraying process, since the rigid foam sprayed polyurethane has a high bonding strength with the pipe material and does not require any adhesives and anchors, it is a natural adhesive material that can form a continuous thermal insulation layer, ensuring the co-action of the thermal insulation material and the pipe and effectively blocking the thermal bridge.
[0003] Currently, when spraying polyurethane on pipes, operators control the opening and closing of the valve of the nozzle to achieve the spraying and stopping of polyurethane. This operation is convenient and fast. However, the existing device is not convenient for controlling the spraying flow rate, resulting in excessive spraying of paint and material waste.
[0004] Therefore, for the improvement of the existing precise control device for rigid polyurethane spraying, it is particularly important to design a new precise control device for rigid polyurethane spraying to solve the above technical defects and improve the practicability of the overall precise control device for rigid polyurethane spraying. Content of the Utility Model
[0005] The purpose of the utility model is to provide a precise control device for rigid polyurethane spraying to solve the problems raised in the above background technique.
[0006] To achieve the above purpose, the utility model provides the following technical solutions:
[0007] A precise control device for rigid polyurethane spraying includes a base. A robotic arm is installed on the top of the base. A conversion head is installed at the top end of the robotic arm. A spray pipe is installed at the right end of the conversion head. A nozzle is installed at the end of the spray pipe away from the conversion head. A nozzle is installed inside the nozzle. An infrared sensor is installed on the top of the spray pipe. A quantitative component is installed inside the spray pipe;
[0008] The quantitative component is used to control the flow rate of polyurethane flowing out of the nozzle.
[0009] As a preferred solution of the utility model, the quantitative component includes a disc, a rotating disc, a rotating shaft, a spring, a swinging rod, and a pressing ring. The disc is installed inside the spray pipe. The rotating disc is installed inside the disc. The rotating shaft is installed at the middle of the rotating disc. The spring is installed inside the rotating shaft. The swinging rod is installed at the end of the spring away from the rotating shaft. The pressing ring is installed outside the swinging rod.
[0010] As a preferred embodiment of the present utility model, a fixing column is installed at the middle of the extrusion ring, the swing rod is connected to the eccentric position of the fixing column, and the extrusion ring is connected to the swing rod through the fixing column.
[0011] As a preferred embodiment of the present utility model, a receiving groove is provided between the disc and the rotating disc, and a placing groove is provided inside the disc.
[0012] As a preferred embodiment of the present utility model, a branch pipe is installed inside the nozzle, and a main pipe is installed at the end of the branch pipe away from the nozzle and inside the spray pipe.
[0013] As a preferred embodiment of the present utility model, a fixing frame is installed outside the spray head, a support column is installed inside the fixing frame, the fixing frame is connected to the spray head through the support column, a sliding sleeve is installed outside the fixing frame, and a moving seat is installed inside the sliding sleeve.
[0014] As a preferred embodiment of the present utility model, a cleaning needle is installed at the top of the moving seat, a gear disc is installed outside the cleaning needle, a circular ring is installed outside the gear disc, a toothed plate is installed at a position corresponding to the gear disc inside the circular ring, and the toothed plate extends to the outside of the circular ring.
[0015] Compared with the prior art, the beneficial effects of the present utility model are:
[0016] In the present utility model, after moving the base to the designated position, the main pipe is passed through the placing groove and wound inside the receiving groove, and finally extends out from the other group of placing grooves. By starting the rotating shaft, the rotating shaft drives the rotating disc to rotate, and then rotates through the spring, so as to realize the swing rod driving the extrusion ring to move in a cycle. At the same time, the swing rod is at the eccentric position of the extrusion ring. When the extrusion ring rotates, its outside will squeeze the main pipe. When the swing rod moves to the other side, through the spring expansion and contraction function, the extrusion ring is driven to contract inward, so as to release the extrusion of the main pipe, release the partition, control the spraying flow rate, and prevent the spraying flow rate from being too fast, resulting in excessive spraying of paint and material waste. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 is a schematic diagram of the overall structure of the present utility model;
[0018] Figure 2 is a schematic diagram of the internal structure of the spray pipe of the present utility model;
[0019] Figure 3 is a schematic diagram of the quantitative component structure of the present utility model;
[0020] Figure 4 is a schematic diagram of the nozzle structure of the present utility model;
[0021] Figure 5 This is a schematic diagram of the cleaning needle structure of the present utility model;
[0022] Figure 6 This is a schematic diagram of the internal structure of the cleaning needle of the present utility model.
[0023] In the figure: 1, base; 2, robotic arm; 3, adapter; 4, nozzle pipe; 5, nozzle head; 501, nozzle; 6, infrared sensor; 7, metering assembly; 701, disc; 702, rotating disc; 703, rotating shaft; 704, spring; 705, swing rod; 706, extrusion ring; 707, receiving groove; 708, placement groove; 8, branch pipe; 9, main pipe; 10, fixing frame; 11, sliding sleeve; 12, moving seat; 13, cleaning needle; 14, gear disc; 15, ring; 16, toothed plate. Specific embodiments
[0024] Next, in combination with 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 creative efforts shall fall within the protection scope of the present utility model.
[0025] Embodiment:
[0026] Please refer to Figures 1-6 , the present utility model provides a technical solution:
[0027] A precise control device for rigid polyurethane spraying, including a base 1, a robotic arm 2 is installed on the top of the base 1, an adapter 3 is installed at the top end of the robotic arm 2, a nozzle pipe 4 is installed at the right end of the adapter 3, a nozzle head 5 is installed at the end of the nozzle pipe 4 away from the adapter 3, a nozzle 501 is installed inside the nozzle head 5, an infrared sensor 6 is installed on the top of the nozzle pipe 4, and a metering assembly 7 is installed inside the nozzle pipe 4;
[0028] The metering assembly 7 is used to control the flow rate of polyurethane flowing out of the nozzle 501.
[0029] Further, please refer to Figure 2 and Figure 3, in this embodiment, the metering component 7 includes a disc 701, a rotating disc 702, a rotating shaft 703, a spring 704, a swing rod 705 and a pressing ring 706. The disc 701 is installed inside the nozzle 4, the rotating disc 702 is installed inside the disc 701, the rotating shaft 703 is installed at the middle of the rotating disc 702, the spring 704 is installed inside the rotating shaft 703, the swing rod 705 is installed at one end of the spring 704 away from the rotating shaft 703, and the pressing ring 706 is installed outside the swing rod 705. When it is necessary to spray polyurethane on the pipeline to achieve the heat preservation effect of the pipeline, by burying the main pipe 9 into the accommodating groove 707, detecting the pipeline through the infrared sensor 6, and starting the rotating shaft 703, the rotating shaft 703 drives the rotating disc 702 to rotate, and then rotates through the spring 704, so as to realize the swing rod 705 driving the pressing ring 706 to move in a cycle, thereby squeezing the main pipe 9 to complete the partition of the coating inside the main pipe 9. The speed of the rotating shaft 703 is reduced to prevent too fast flow rate, resulting in excessive spraying of the coating and material waste.
[0030] Among them, please refer to Figure 2 and Figure 3 , in this embodiment, a fixing column is installed at the middle of the pressing ring 706, the swing rod 705 is connected to the eccentric part of the fixing column, the pressing ring 706 is connected to the swing rod 705 through the fixing column, the spring 704 is connected to the pressing ring 706 through the swing rod 705, and at the same time, the swing rod 705 is at the eccentric part of the pressing ring 706, so that the outside of the pressing ring 706 squeezes the water pipe. When the swing rod 705 moves to the other side, through the function of the spring 704, the pressing ring 706 is driven to contract inward, thereby releasing the extrusion of the main pipe 9 and releasing the partition.
[0031] Furthermore, please refer to Figure 2 and Figure 3 , in this embodiment, an accommodating groove 707 is provided between the disc 701 and the rotating disc 702, and a placing groove 708 is provided inside the disc 701. The main pipe 9 is passed through the placing groove 708 and wound inside the accommodating groove 707, and finally extends out from another set of placing grooves 708.
[0032] Furthermore, please refer to Figure 1 , Figure 2 and Figure 4 , in this embodiment, a branch pipe 8 is installed inside the nozzle 501, and a main pipe 9 is installed at one end of the branch pipe 8 away from the nozzle 501 and inside the nozzle 4. Through the design of the main pipe 9 and the branch pipe 8, when the main pipe 9 is squeezed and partitioned, the branch pipe 8 has a chain reaction.
[0033] Furthermore, please refer to Figure 1 , Figure 2 , Figure 5 andFigure 6 In this embodiment, a fixing frame 10 is installed outside the nozzle 5. A support column is installed inside the fixing frame 10. The fixing frame 10 is connected to the nozzle 5 through the support column. A sliding sleeve 11 is installed outside the fixing frame 10. A moving seat 12 is installed inside the sliding sleeve 11. A cleaning needle 13 is installed at the top of the moving seat 12. A gear disk 14 is installed outside the cleaning needle 13. A circular ring 15 is installed outside the gear disk 14. A toothed plate 16 is installed at a position corresponding to the gear disk 14 inside the circular ring 15, and the toothed plate 16 extends to the outside of the circular ring 15. After the nozzle 501 is used for a long time, the paint that has not been cleaned inside it contacts the air and will form a solid state inside the nozzle 501, thereby blocking the nozzle 501. By moving the sliding sleeve 11, the sliding sleeve 11 moves cyclically outside the fixing frame 10. When it moves to one of the nozzles 501, the cleaning needle 13 is inserted into the nozzle 501. By pressing the moving seat 12, the cleaning needle 13 is completely inserted into the nozzle 501. By pulling the toothed plate 16, the toothed plate 16 meshes with the gear disk 14, causing the cleaning needle 13 to rotate, thereby completely removing the dirt inside the nozzle 501.
[0034] In this embodiment, the implementation scenario is specifically as follows: When it is necessary to spray polyurethane on the pipeline to achieve the heat preservation effect of the pipeline, after moving the base 1 to the designated position, the main pipe 9 is passed through the placement groove 708 and wound inside the receiving groove 707, and finally extends out from the other placement groove 708. The pipeline is detected by the infrared sensor 6. By starting the rotating shaft 703, the rotating shaft 703 drives the rotating disk 702 to rotate, and then rotates through the spring 704, so as to drive the swing rod 705 to drive the extrusion ring 706 to move cyclically. At the same time, the swing rod 705 is at the eccentric position of the extrusion ring 706, so that the outside of the extrusion ring 706 squeezes the water pipe. When the swing rod 705 moves to the other side, through the function of the spring 704, the extrusion ring 706 is driven to contract inward, thereby releasing the extrusion of the main pipe 9 and removing the partition. The speed of the rotating shaft 703 is reduced to prevent the flow rate from being too fast, resulting in excessive spraying of paint and material waste. Through the flexible swing of the robotic arm 2 and the conversion head 3, automatic spraying is achieved. After the nozzle 501 is used for a long time, the paint that has not been cleaned inside it contacts the air and will form a solid state inside the nozzle 501, thereby blocking the nozzle 501. By moving the sliding sleeve 11, the sliding sleeve 11 moves cyclically outside the fixing frame 10. When it moves to one of the nozzles 501, the cleaning needle 13 is inserted into the nozzle 501. By pressing the moving seat 12, the cleaning needle 13 is completely inserted into the nozzle 501. By pulling the toothed plate 16, the toothed plate 16 meshes with the gear disk 14, causing the cleaning needle 13 to rotate, thereby completely removing the dirt inside the nozzle 501.
[0035] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.
Claims
1. A precise control device for rigid polyurethane spraying, comprising a base (1), characterized in that: A robotic arm (2) is installed on the top of the base (1). A conversion head (3) is installed at the top end of the robotic arm (2). A nozzle pipe (4) is installed at the right end of the conversion head (3). A spray head (5) is installed at one end of the nozzle pipe (4) away from the conversion head (3). A nozzle (501) is installed inside the spray head (5). An infrared sensor (6) is installed on the top of the nozzle pipe (4). A metering component (7) is installed inside the nozzle pipe (4); The metering component (7) is used to control the flow rate of the polyurethane flowing out of the nozzle (501).
2. The precise control device for rigid polyurethane spraying according to claim 1, characterized in that: The metering component (7) includes a disc (701), a rotating disc (702), a rotating shaft (703), a spring (704), a swing rod (705) and a pressing ring (706). The disc (701) is installed inside the nozzle pipe (4). The rotating disc (702) is installed inside the disc (701). The rotating shaft (703) is installed at the middle of the rotating disc (702). The spring (704) is installed inside the rotating shaft (703). The swing rod (705) is installed at one end of the spring (704) away from the rotating shaft (703). The pressing ring (706) is installed outside the swing rod (705).
3. The precise control device for spraying rigid polyurethane according to claim 2, characterized in that: A fixing column is installed at the middle of the pressing ring (706). The swing rod (705) is connected to the eccentric position of the fixing column. The pressing ring (706) is connected to the swing rod (705) through the fixing column.
4. The precise control device for spraying rigid polyurethane according to claim 2, wherein: A receiving groove (707) is formed between the disc (701) and the rotating disc (702). A placing groove (708) is formed inside the disc (701).
5. The precise control device for rigid polyurethane spraying according to claim 1, characterized in that: A branch pipe (8) is installed inside the nozzle (501). A main pipe (9) is installed at one end of the branch pipe (8) away from the nozzle (501) and inside the nozzle pipe (4).
6. The precise control device for rigid polyurethane spraying according to claim 1, wherein: A fixing frame (10) is installed outside the spray head (5). A support column is installed inside the fixing frame (10). The fixing frame (10) is connected to the spray head (5) through the support column. A sliding sleeve (11) is installed outside the fixing frame (10). A moving seat (12) is installed inside the sliding sleeve (11).
7. The precise control device for rigid polyurethane spraying according to claim 6, characterized in that: A cleaning needle (13) is installed at the top end of the moving seat (12). A gear disc (14) is installed outside the cleaning needle (13). A circular ring (15) is installed outside the gear disc (14). A toothed plate (16) is installed at a position corresponding to the gear disc (14) inside the circular ring (15), and the toothed plate (16) extends outside the circular ring (15).