Shell spraying machine for production of heating equipment

Abstract

The utility model discloses a shell spraying machine for heating equipment production, which comprises a machine base, a spraying device is arranged on the machine base, the spraying device comprises a spray head, a temporary storage bin and a movable roller, the movable roller is arranged below the spray head, and one side of the temporary storage bin is connected with a speed regulating device. The speed adjusting device comprises a conveying pipe, a connecting pipe, a control sleeve, a speed control plate, a connecting shaft, a movable groove and a movable shaft, one side of the speed control plate is rotationally connected with the control sleeve through the connecting shaft, and the other side of the speed control plate is slidably connected with the movable groove through the movable shaft; the reinforcing mechanism comprises a release sleeve, a connecting plate, a fixing plate, a rotating plate, a rotating groove, a release rod, a release groove and a conical spring, the fixing plate is connected to one side of the connecting plate, the rotating groove is formed in the rotating plate, one end of the release rod is connected with the outer wall of the control sleeve through the conical spring, and the release groove is formed in the outer wall of the conveying pipe. The coating conveying speed is accurately controlled, and the structure is kept stable after long-term use.

Description

Technical Field

[0001] This utility model relates to the field of processing technology for the outer shell of heating equipment, and more specifically, it relates to a spraying machine for the outer shell of heating equipment. Background Technology

[0002] In the existing technology, the shell spraying machine for heating equipment production has many shortcomings, which seriously affect the applicability, efficiency and spraying quality of the equipment.

[0003] First, existing equipment generally has limitations in clamping and spraying capabilities. These devices are mainly designed for square parts and cannot effectively handle cylindrical round shells. When facing round shells, the equipment cannot achieve stable clamping, causing the workpiece to move easily during the spraying process, affecting the uniformity and coverage of the spray. This limitation severely restricts the application range of the equipment, requiring frequent manual operation when the production line processes cylindrical heating equipment shells, which greatly reduces production efficiency. At the same time, unstable clamping also increases the safety risks during operation, which may lead to workpiece falling off or uneven spraying, resulting in material waste and quality problems.

[0004] Secondly, the control of liquid coating conveying speed is also significantly lacking in existing technologies. Most equipment uses a fixed speed to convey coatings, lacking the ability to flexibly adjust according to process requirements and workpiece characteristics. This rigid design cannot adapt to the differences in characteristics of different types of coatings, nor can it be adjusted in real time according to factors such as workpiece surface condition and ambient temperature and humidity. As a result, the spraying intensity cannot be optimized, and the coating may be too thick or too thin, affecting the appearance quality and protective effect of the finished product. In addition, fixed-speed conveying may also cause coating waste or low spraying efficiency, increasing production costs.

[0005] Furthermore, although some improved equipment has introduced devices that can adjust the paint conveying speed in an attempt to solve the above problems, these designs still have serious flaws. These adjustment devices are often simple in structure and lack sufficient stability and precision. In actual use, the impact force generated when liquid paint is conveyed at high speed, as well as the vibration during equipment operation, may cause the adjustment device to undergo slight displacement or deformation. These subtle changes accumulate and cause the carefully adjusted conveying speed to gradually deviate from the preset value. As a result, even if the operator sets the optimal conveying speed according to the process requirements, the conveying speed may still fluctuate during the actual spraying process, resulting in unstable spraying effect and difficulty in ensuring the consistency of mass production. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] In view of the problems existing in the prior art, this utility model provides a shell spraying machine for heating equipment production to solve the technical problems mentioned in the background art.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution: a shell coating machine for heating equipment production, comprising a base, on which a coating device is mounted, the coating device including a nozzle, a buffer chamber, and a movable roller, the movable roller being rotatably disposed below the nozzle, the nozzle being connected below the buffer chamber, a speed regulating device connected to one side of the buffer chamber, the speed regulating device including a conveying pipe, a connecting pipe, a control sleeve, a speed control plate, a connecting shaft, a movable groove, and a movable shaft, the connecting pipe being fixedly connected to one side of the buffer chamber, the control sleeve being rotatably connected to the conveying pipe and the connecting pipe on both sides respectively, the speed control plate being rotatably connected to the control sleeve on one side via the connecting shaft, and the speed control plate sliding with the movable groove on the other side via the movable shaft. The connection includes an active groove on one side of the connecting pipe, and a reinforcing mechanism on the outside of the conveying pipe. The reinforcing mechanism includes a release sleeve, a connecting plate, a fixing plate, a rotating plate, a rotating groove, a release rod, a release slot, and a conical spring. The release sleeve is slidably fitted on the outside of the conveying pipe, the connecting plate is connected to one side of the release sleeve, the fixing plate is fixedly connected to one side of the connecting plate, the rotating plate is rotatably fitted on the outside of the conveying pipe, the rotating groove is opened on the rotating plate, one end of the release rod is connected to the outer wall of the control sleeve through the conical spring, and the other end of the release rod is inserted into the release slot. Multiple release rods are slidably arranged on the side wall of the control sleeve, and the release slot is opened on the outer wall of the conveying pipe. The inner edge of the release slot and the end of the release rod are designed with rounded corners.

[0010] The present invention is further configured such that a drive assembly is detachably provided in the base, and the drive assembly is connected to one end of the movable roller.

[0011] The present invention is further configured such that: a mounting block is connected to the top of the buffer compartment; a lifting frame is provided above the movable roller; a lead screw is rotatably provided in the lifting frame; the mounting block is movably connected to the lead screw via a thread; a motor is detachably provided on one side of the lifting frame; the output end of the motor is connected to one end of the lead screw; a sliding rod is fixedly provided on the inner side of the lifting frame; the mounting block is slidably connected to the sliding rod; and a corrugated pipe is connected to one end of the connecting pipe.

[0012] The present invention is further configured such that a cylinder is provided on one side of the base, a piston rod is connected to the output end of the cylinder, a support frame is detachably provided at the top of the piston rod, and a support roller is rotatably provided in the support frame.

[0013] The present invention is further configured such that a hydraulic cylinder is detachably provided at the top of the base, a hydraulic rod is connected to the output end of the hydraulic cylinder, and the bottom end of the hydraulic rod is detachably connected to the top of the lifting frame.

[0014] The present invention is further configured such that a connecting spring is connected to one side of the release sleeve, and the other end of the connecting spring is rotatably connected to the rotating plate. The connecting spring provides pre-tightening force while simplifying the operation process.

[0015] The present invention is further configured such that a slot is provided on the inner side of the control sleeve, and a sealing ring is fixedly provided at one end of the connecting pipe, and the slot is adapted to the sealing ring. The above components ensure the sealing of the connection between the control sleeve and the delivery pipe.

[0016] The present invention is further configured such that the speed control plate has multiple through holes, and the through holes further refine the mechanism of the speed regulation device.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, this utility model provides a shell spraying machine for heating equipment production, which has the following beneficial effects:

[0019] 1. The design of the spraying device solves the problem of clamping and spraying cylindrical shells. It includes components such as a nozzle, buffer bin, and movable roller, forming a spraying system. Through the cooperation of the movable roller and support roller, stable clamping of the cylindrical shell is achieved. The design of components such as the lifting frame and lead screw allows the nozzle to be adjusted in height and horizontal direction. This design not only overcomes the limitation of traditional equipment in handling circular shells, but also, in conjunction with the drive assembly to drive the movable roller to rotate, achieves all-round spraying of the shell. At the same time, the motor-driven lead screw rotation causes the mounting block to drive the nozzle to move back and forth, further ensuring the uniformity and coverage of the spraying. This design greatly improves the applicability and efficiency of the equipment, reduces the need for manual operation, lowers safety risks, and improves the spraying quality.

[0020] 2. The introduction of the speed control device solves the problem of uncontrollable liquid coating delivery speed. It includes components such as delivery pipe, connecting pipe, control sleeve, speed control plate, connecting shaft, and movable groove. Through this design, the operator can flexibly adjust the coating delivery speed as needed. The rotation of the control sleeve drives the speed control plate to move. By changing the position of the speed control plate and the central through hole, the flow area is adjusted, thereby precisely controlling the coating delivery speed. This adjustability allows the equipment to adapt to different types of coatings and workpiece surface conditions, and adjust the spraying intensity in real time according to actual usage requirements. This not only optimizes the spraying effect and avoids the problem of coating being too thick or too thin, but also improves coating utilization efficiency and reduces production costs. At the same time, the design of the slot and sealing ring ensures the sealing during the speed adjustment process and prevents coating leakage.

[0021] 3. The design of the reinforcement mechanism solves the problem of insufficient stability of the speed regulating device. It includes components such as a release sleeve, connecting plate, fixing plate, rotating plate, rotating groove, release rod, release groove, and conical spring. This complex locking mechanism ensures the stability of the speed regulating device in a vibration environment through the application of multiple limiters and elastic elements. The cooperation of components such as the release sleeve and fixing plate, as well as the interaction between the release rod and the release groove, form a multi-layered locking mechanism. The use of conical springs ensures the stable use of the release rod. This design not only prevents the speed regulating device from shifting due to paint impact or equipment vibration, but also ensures that the conveying speed can remain stable for a long time once it is adjusted. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a shell spraying machine for producing heating equipment according to this utility model;

[0023] Figure 2 This is a cross-sectional view of the top portion of the base in this utility model.

[0024] Figure 3 This is a schematic diagram of the conveying pipe and connecting pipe in this utility model;

[0025] Figure 4 This is a cross-sectional structural diagram of the speed regulating device and the reinforcing mechanism in this utility model;

[0026] Figure 5 This is a schematic diagram of the dispersed structure of the speed regulating device and the reinforcement mechanism in this utility model.

[0027] In the diagram: 1. Base; 2. Nozzle; 3. Buffer chamber; 4. Movable roller; 5. Conveyor pipe; 6. Connecting pipe; 7. Control sleeve; 8. Speed ​​control plate; 9. Connecting shaft; 10. Movable groove; 11. Movable shaft; 12. Release sleeve; 13. Connecting plate; 14. Fixed plate; 15. Rotating plate; 16. Rotating groove; 17. Release rod; 18. Release groove; 19. Conical spring; 20. Drive assembly; 21. Mounting block; 22. Lifting frame; 23. Lead screw; 24. Motor; 25. Slide rod; 26. Bellows; 27. Cylinder; 28. Piston rod; 29. ​​Support frame; 30. Support roller; 31. Hydraulic cylinder; 32. Hydraulic rod; 33. Connecting spring; 34. Slot; 35. Sealing ring; 36. Through hole. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0030] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0031] Please see Figures 1-5 A shell coating machine for heating equipment production includes a base 1, on which a coating device is mounted. The coating device includes a nozzle 2, a buffer chamber 3, and a movable roller 4. The movable roller 4 is rotatably positioned below the nozzle 2, and the nozzle 2 is connected to the bottom of the buffer chamber 3. A speed regulating device is connected to one side of the buffer chamber 3. The speed regulating device includes a conveying pipe 5, a connecting pipe 6, a control sleeve 7, a speed control plate 8, a connecting shaft 9, a movable groove 10, and a movable shaft 11. The connecting pipe 6 is fixedly connected to one side of the buffer chamber 3. The control sleeve 7 is rotatably connected to the conveying pipe 5 and the connecting pipe 6 on both sides, respectively. One side of the speed control plate 8 is rotatably connected to the control sleeve 7 via the connecting shaft 9, and the other side of the speed control plate 8 is slidably connected to the movable groove 10 via the movable shaft 11. The movable groove 10 is located on one side of the connecting pipe 6. A reinforcement mechanism is provided on the outside of the pipe 5. The reinforcement mechanism includes a release sleeve 12, a connecting plate 13, a fixing plate 14, a rotating plate 15, a rotating groove 16, a release rod 17, a release groove 18, and a conical spring 19. The release sleeve 12 is slidably sleeved on the outside of the conveying pipe 5. The connecting plate 13 is connected to one side of the release sleeve 12. The fixing plate 14 is fixedly connected to one side of the connecting plate 13. The rotating plate 15 is rotatably sleeved on the outside of the conveying pipe 5. The rotating groove 16 is opened on the rotating plate 15. One end of the release rod 17 is connected to the outer wall of the control sleeve 7 through the conical spring 19. The other end of the release rod 17 is inserted into the release groove 18. Multiple release rods 17 are slidably arranged on the side wall of the control sleeve 7. The release groove 18 is opened on the outer wall of the conveying pipe 5. The inner edge of the release groove 18 and the end of the release rod 17 are both designed with rounded corners.

[0032] The base 1 is detachably equipped with a drive assembly 20, which is connected to one end of the movable roller 4.

[0033] The top of the buffer compartment 3 is connected to the mounting block 21. The upper part of the movable roller 4 is provided with the lifting frame 22. The lifting frame 22 is rotatably provided with the lead screw 23. The mounting block 21 is movably connected to the lead screw 23 through the thread. The side of the lifting frame 22 is detachably provided with the motor 24. The output end of the motor 24 is connected to one end of the lead screw 23. The inner side of the lifting frame 22 is fixedly provided with the slide rod 25. The mounting block 21 is slidably connected to the slide rod 25. One end of the connecting pipe 6 is connected with the corrugated pipe 26.

[0034] A cylinder 27 is provided on one side of the base 1. A piston rod 28 is connected to the output end of the cylinder 27. A support frame 29 is detachably provided at the top of the piston rod 28. A support roller 30 is rotatably provided in the support frame 29.

[0035] A hydraulic cylinder 31 is detachably mounted on the top of the base 1. A hydraulic rod 32 is connected to the output end of the hydraulic cylinder 31. The bottom end of the hydraulic rod 32 is detachably connected to the top of the lifting frame 22.

[0036] In this embodiment, when the device is needed, firstly, two cylinders 27 are opened simultaneously, causing the piston rod 28 connected to the output end of cylinder 27 to drive the support frame 29 to descend, thereby driving the support roller 30 to descend. Then, the cylindrical shell is fitted onto the outside of the movable roller 4. Then, cylinder 27 is driven in the reverse direction, causing the support frame 29 and support roller 30 to rise through the piston rod 28 connected to the output end. Then, the two support rollers 30 will contact the outer wall of the cylindrical shell and gradually bring the cylindrical shell into contact. When the lower side of the inner wall of the cylindrical shell contacts the lower side of the movable roller 4, that is, after the movable roller 4 and the two support rollers 30 cooperate to clamp the cylindrical shell, the two cylinders 27 are closed. Then, hydraulic cylinder 31 is opened, causing the hydraulic cylinder 31 to drive the lifting frame 22 to rise and fall through the hydraulic rod 32 connected to the output end, thereby adjusting the distance between the nozzle 2 and the outer wall of the cylindrical shell. After the distance is adjusted appropriately, hydraulic cylinder 31 is closed, and then the device is conveyed by an external conveying device. Liquid paint is extracted and conveyed into the corrugated pipe 26, then through the corrugated pipe 26 to the conveying pipe 5, and then through the connecting pipe 6 to the buffer chamber 3. The paint is then atomized and sprayed onto the outer wall of the cylindrical shell through the nozzle 2 connected to the bottom of the buffer chamber 3. An external drying mechanism is then activated to dry the paint. The drive assembly 20 is then activated, causing the movable roller 4 to rotate slowly, which in turn causes the cylindrical shell to rotate slowly, thus achieving full-area spraying of the outer side of the cylinder. During this process, the motor 24 can be activated, causing the lead screw 23 to rotate. The mounting block 21 slides along the lead screw, and the mounting block 21 causes the buffer chamber 3 and the nozzle 2 to slide along the sliding rod 25. The conveying pipe 5 stretches the corrugated pipe 26. By switching the forward and reverse states of the motor 24, the nozzle 2 reciprocates, thus achieving full-area spraying of the outer wall of the cylindrical shell.

[0037] Please see Figures 3-5 As a further implementation of the overall equipment: a connecting spring 33 is connected to one side of the release sleeve 12, and the other end of the connecting spring 33 is rotatably connected to the rotating plate 15.

[0038] The control sleeve 7 has a slot 34 on its inner side, and a sealing ring 35 is fixedly provided at one end of the connecting pipe 6, and the slot 34 and the sealing ring 35 are compatible.

[0039] The speed control plate 8 has multiple through holes 36.

[0040] More specifically, when the liquid coating delivery speed needs to be adjusted according to the actual situation, firstly, rotate the rotating plate 15, causing the rotating groove 16 to rotate. When the rotating groove 16 rotates to the position corresponding to the fixed plate 14, push the release sleeve 12. The release sleeve 12 causes the connecting plate 13 to slide, and then the connecting plate 13 will cause the fixed plate 14 to move, so that the fixed plate 14 gradually passes through the rotating groove 16. The release sleeve 12 will cooperate with the rotating plate 15 to compress the connecting spring 33. When the connecting spring 33 is compressed to its limit, one of the fixed plates 14 near the release sleeve 12 completely passes through the rotating groove 16 and moves to the other side of the rotating plate 15. Then, continue to rotate the rotating plate 15, causing the rotating groove 16 to rotate to a position that does not correspond to the fixed plate 14. At this time, the connecting plate 13 and the fixing plate 14, together with the rotating plate 15, limit the release sleeve 12, so that the release sleeve 12 no longer limits the release rod 17. Then, the control sleeve 7 rotates forward, and the control sleeve 7 will drive the multiple release rods 17 sliding on the side wall to move. Then, the inner wall of the release groove 18 presses against one end of the release rod 17. Due to the rounded corner design at the end of the release rod 17 and the edge of the inner wall of the release groove 18, one end of the release rod 17 slides out of the release groove 18, and the other end of the release rod 17 will drive the conical spring 19 to stretch. At the same time, the control sleeve 7 will drive the speed control plate 8 to move through the connecting shaft 9. Due to the limitation of the other side of the speed control plate 8 by the movable shaft 11 and the movable groove 10, the speed control plate 8 drives the through hole 36 to move around the connecting shaft 9. On the other side, the movable shaft 11 moves along the movable groove 10, causing the speed control plate 8 to move the central through hole 36 outward, expanding the flow area. When the flow area needs to be reduced, the control sleeve 7 is rotated in the opposite direction. After the flow rate is adjusted appropriately, the control sleeve 7 is stopped, and the conical spring 19 drives the release rod 17 to slide into the corresponding release groove 18. Then, the rotating plate 15 is rotated again, causing the rotating plate 15 to drive the rotating groove 16 to rotate again. When the rotating groove 16 moves to the position corresponding to the fixed plate 14 again, the connecting spring 33 pushes the release sleeve 12 to slide back to its original position. Then, the release sleeve 12 will drive the three fixed plates 14 to slide back to their original positions through the connecting plate 13. After the connecting spring 33 is fully reset, the other two fixed plates 14... The components are moved to both sides of the rotating plate 15, and then the rotating plate 15 is rotated again, causing the rotating plate 15 to move the rotating groove 16 to a position that does not correspond to the fixed plate 14. At this time, the connecting plate 13 and the two fixed plates 14 cooperate to restrict the release sleeve 12 to one side of the rotating plate 15. With the preload of the connecting spring 33, the release sleeve 12 will not slide easily. Then, the inner wall of the release sleeve 12 limits the outer end of the release rod 17. Then, the release rod 17 and the release groove 18 cooperate to limit the control sleeve 7, so that the control sleeve 7 cannot rotate, thereby ensuring structural stability and ensuring stable delivery of liquid coating, achieving stable spraying processing. The design of the slot 34 and the sealing ring 35 ensures the sealing between the delivery pipe 5 and the control sleeve 7 during speed adjustment.

[0041] In summary, when using or operating the entire device: First, simultaneously open both cylinders 27, causing the piston rod 28 connected to the output end of cylinder 27 to lower the support frame 29, thereby lowering the support roller 30. Then, the cylindrical outer shell is fitted onto the outside of the movable roller 4. Next, reverse the direction of cylinder 27, causing the piston rod 28 connected to the output end of cylinder 27 to raise the support frame 29 and support roller 30. The two support rollers 30 will then contact the outer wall of the cylindrical outer shell, gradually bringing it into contact with the outer shell. When the lower side of the inner wall of the cylindrical outer shell contacts the lower side of the movable roller 4, i.e., the movable roller 4 and the two support rollers 30 cooperate to clamp the cylindrical outer shell, close both cylinders 27. Then, open the hydraulic cylinder 31, causing the hydraulic rod 32 connected to the output end of hydraulic cylinder 31 to raise and lower the lifting frame 22, thereby adjusting the distance between the nozzle 2 and the outer wall of the cylindrical outer shell. After the distance is adjusted appropriately, close the hydraulic cylinder 31. Then, through the external device... The conveying equipment extracts liquid paint and conveys it to the corrugated pipe 26, then through the corrugated pipe 26 to the conveying pipe 5, and then through the connecting pipe 6 to the buffer chamber 3. The paint is then atomized and sprayed onto the outer wall of the cylindrical shell through the nozzle 2 connected to the bottom of the buffer chamber 3. The external drying mechanism is then turned on to dry the paint. The drive assembly 20 is then turned on, causing the drive assembly 20 to drive the movable roller 4 to rotate slowly. This causes the movable roller 4 to drive the cylindrical shell to rotate slowly, thus achieving full-area spraying on the outer side of the cylinder. During this process, the motor 24 can be turned on, causing the motor 24 to drive the lead screw 23 to rotate. The mounting block 21 slides along the lead screw, and the mounting block 21 drives the buffer chamber 3 and the nozzle 2 to slide along the sliding rod 25. The conveying pipe 5 drives the corrugated pipe 26 to stretch. By switching the forward and reverse states of the motor 24, the nozzle 2 moves back and forth, thus achieving full-area spraying on the outer wall of the cylindrical shell.

[0042] When the liquid coating delivery speed needs to be adjusted according to the actual situation, first rotate the rotating plate 15, causing the rotating trough 16 to rotate. When the rotating trough 16 rotates to the position corresponding to the fixed plate 14, push the release sleeve 12. The release sleeve 12 causes the connecting plate 13 to slide, and then the connecting plate 13 will cause the fixed plate 14 to move, so that the fixed plate 14 gradually passes through the rotating trough 16. The release sleeve 12 will cooperate with the rotating plate 15 to compress the connecting spring 33. When the connecting spring 33 is compressed to its limit, one of the fixed plates 14 near the release sleeve 12 completely passes through the rotating trough 16 and moves to the other side of the rotating plate 15. Then continue to rotate the rotating plate 15, so that the rotating plate 15 causes the rotating trough 16 to rotate to a position that does not correspond to the fixed plate 14. At this time, the connecting spring 33 is fully compressed. The connecting plate 13 and the fixing plate 14, together with the rotating plate 15, limit the release sleeve 12, so that the release sleeve 12 no longer limits the release rod 17. Then, the control sleeve 7 rotates forward, which drives the multiple release rods 17 that are slidably set on the side wall to move. Then, the inner wall of the release groove 18 presses against one end of the release rod 17. Due to the rounded corner design at the end of the release rod 17 and the edge of the inner wall of the release groove 18, one end of the release rod 17 slides out of the release groove 18, and the other end of the release rod 17 drives the conical spring 19 to stretch. At the same time, the control sleeve 7 drives the speed control plate 8 to move through the connecting shaft 9. Due to the limitation of the other side of the speed control plate 8 by the movable shaft 11 and the movable groove 10, the speed control plate 8 drives the through hole 36 to move around the connecting shaft 9 as the center. The side-driven movable shaft 11 moves along the movable groove 10, thereby causing the speed control plate 8 to move the central through hole 36 outward, expanding the flow area. When it is necessary to reduce the flow area, the control sleeve 7 is rotated in the opposite direction. After the flow rate is adjusted appropriately, the rotation of the control sleeve 7 is stopped, and the conical spring 19 drives the release rod 17 to slide into the corresponding release groove 18. Then, the rotating plate 15 is rotated again, causing the rotating plate 15 to drive the rotating groove 16 to rotate again. When the rotating groove 16 moves to the position corresponding to the fixed plate 14 again, the connecting spring 33 pushes the release sleeve 12 to slide back to its original position. Then, the release sleeve 12 will drive the three fixed plates 14 to slide back to their original positions through the connecting plate 13. After the connecting spring 33 is fully reset, the other two fixed plates 14 respectively... Move to both sides of the rotating plate 15, and then rotate the rotating plate 15 again, so that the rotating plate 15 drives the rotating groove 16 to a position that does not correspond to the fixed plate 14. At this time, the connecting plate 13 and the two fixed plates 14 cooperate to restrict the release sleeve 12 to one side of the rotating plate 15. With the pre-tightening force of the connecting spring 33, the release sleeve 12 will not slide easily. Then, the inner wall of the release sleeve 12 limits the outer end of the release rod 17. Then, the release rod 17 and the release groove 18 cooperate to limit the control sleeve 7, so that the control sleeve 7 cannot rotate, thereby ensuring structural stability and ensuring stable delivery of liquid coating, realizing stable spraying processing. The design of the slot 34 and the sealing ring 35 ensures the sealing between the delivery pipe 5 and the control sleeve 7 during speed adjustment.

[0043] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A housing spraying machine for heating equipment production, comprising a base (1), characterized in that: A spraying device is provided on the base (1). The spraying device includes a nozzle (2), a buffer chamber (3), and a movable roller (4). The movable roller (4) is located below the nozzle (2). The nozzle (2) is connected to the buffer chamber (3). A speed regulating device is connected to one side of the buffer chamber (3). The speed regulating device includes a conveying pipe (5), a connecting pipe (6), a control sleeve (7), a speed control plate (8), a connecting shaft (9), a movable groove (10), and a movable shaft (11). One side of the speed control plate (8) is rotatably connected to the control sleeve (7) through the connecting shaft (9). The other side of the speed control plate (8) is slidably connected to the movable groove (10) through the movable shaft (11). The movable groove (10) is opened on one side of the connecting pipe (6), and a reinforcing mechanism is provided on the outside of the conveying pipe (5). The reinforcing mechanism includes a release sleeve (12), a connecting plate (13), a fixing plate (14), a rotating plate (15), a rotating groove (16), a release rod (17), a release groove (18), and a conical spring (19). The connecting plate (13) is connected to one side of the release sleeve (12), the fixing plate (14) is connected to one side of the connecting plate (13), the rotating groove (16) is opened on the rotating plate (15), one end of the release rod (17) is connected to the outer wall of the control sleeve (7) through the conical spring (19), and the release groove (18) is opened on the outer wall of the conveying pipe (5).

2. The housing spray coater for a heating apparatus production according to claim 1, characterized in that: The base (1) is detachably provided with a drive assembly (20), which is connected to one end of the movable roller (4).

3. The housing spray coater for a heating apparatus production according to claim 2, characterized in that: The top of the buffer compartment (3) is connected to an installation block (21), and a lifting frame (22) is provided above the movable roller (4). A lead screw (23) is rotatably provided in the lifting frame (22). The installation block (21) is movably connected to the lead screw (23) through a thread. A motor (24) is detachably provided on one side of the lifting frame (22). The output end of the motor (24) is connected to one end of the lead screw (23). A slide rod (25) is fixedly provided on the inner side of the lifting frame (22). The installation block (21) is slidably connected to the slide rod (25). A corrugated pipe (26) is connected to one end of the connecting pipe (6).

4. The housing spray coater for a heating apparatus production according to claim 3, characterized in that: A cylinder (27) is provided on one side of the base (1). A piston rod (28) is connected to the output end of the cylinder (27). A support frame (29) is detachably provided at the top of the piston rod (28). A support roller (30) is rotatably provided in the support frame (29).

5. The housing spray coater for a heating apparatus production according to claim 4, characterized in that: The top of the base (1) is detachably equipped with a hydraulic cylinder (31), and the output end of the hydraulic cylinder (31) is connected to a hydraulic rod (32). The bottom end of the hydraulic rod (32) is detachably connected to the top of the lifting frame (22).

6. A shell coating machine for heating equipment production according to any one of claims 1-5, characterized in that: The release sleeve (12) is connected to a connecting spring (33) on one side, and the other end of the connecting spring (33) is rotatably connected to the rotating plate (15).

7. The housing spray coater for a heating apparatus production according to claim 1, characterized in that: The control sleeve (7) has a slot (34) on its inner side, and a sealing ring (35) is fixedly provided at one end of the connecting pipe (6), and the slot (34) and the sealing ring (35) are compatible.

8. The housing spray coater for a heating apparatus production according to claim 7, characterized in that: The speed control plate (8) has multiple through holes (36).

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