A spray preheating device

Abstract

This utility model relates to the field of spraying technology, specifically a spraying preheating device, which includes: a conveyor roller, a preheating chamber on the top of the conveyor roller, and a drive structure and a clamping mechanism on the surface of the preheating chamber; the drive structure includes a cylinder, a lifting frame, a guide rod, an electric push rod, a slide, a rotating shaft, a connecting rod, a rack, and a gear. The drive structure uses an electric push rod to move the connecting rod, causing the racks on both sides to move synchronously. Because the gear meshes with the double racks, the two slides move synchronously in opposite directions on the guide rod, allowing the clamping plate to quickly adapt to workpieces of different sizes. The cylinder drives the lifting frame to move up and down, causing the clamping plate to rise and fall as a whole, ensuring the workpiece is in the optimal preheating position. The clamping mechanism uses an anti-slip pad on the inner side of the clamping plate; after contacting the workpiece, the spring compression generates adaptive pressure, avoiding rigid clamping damage, especially suitable for irregularly shaped parts. Thus, the workpiece is clamped and suspended in the preheating chamber, allowing hot airflow or radiation to surround its surface.

Description

Technical Field

[0001] This utility model relates to the field of spraying technology, specifically to a spraying preheating device. Background Technology

[0002] Coating is a coating method that uses a spray gun or disc atomizer to disperse the material into uniform and fine droplets by pressure or centrifugal force and apply it to the surface of the object. There are various types of coating methods, including compressed air spraying, high-pressure airless spraying, and electrostatic spraying.

[0003] In mechanical production and processing, it is necessary to preheat the surface of the workpiece. Traditional spraying will result in uneven surface temperature of the workpiece, which leads to poor coating adhesion and difficulty in uniformly heating irregularly shaped parts. Therefore, a spraying preheating device is proposed. Utility Model Content

[0004] The purpose of this utility model is to provide a spray preheating device to solve at least one technical problem existing in the above-mentioned background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A spray preheating device, comprising:

[0007] A conveyor roller, the top of which is provided with a preheating chamber, and the surface of the preheating chamber is provided with a drive structure and a clamping mechanism;

[0008] The drive structure includes a cylinder, a lifting frame, a guide rod, an electric push rod, a slide, a rotating shaft, a connecting rod, a rack and pinion;

[0009] The cylinder is fixedly installed on the top of the preheating chamber, the lifting frame is fixedly connected to the output end of the cylinder, the guide rod is fixedly connected to the inner side of the lifting frame, the electric push rod is fixedly installed on the outer side of the guide rod, the slide is slidably connected to the outer wall of the guide rod, the rotating shaft is rotatably connected to the guide rod, the connecting rod is fixedly connected to the outer side of one of the slides, the rack is fixedly assembled on the surface of the connecting rod, and the gear is fixedly assembled on the bottom of the rotating shaft.

[0010] Preferably, the connecting rod is fixedly connected to the output end of the electric push rod, and the output end of the electric push rod in the energized state is used to drive the connecting rod to move.

[0011] Preferably, the gear meshes with the two racks, and the meshing gear and the two racks are used to drive the two carriages to move synchronously.

[0012] Preferably, the clamping mechanism includes a connecting frame, a motor, a telescopic rod, a spring, a clamping plate, and an anti-slip pad.

[0013] The connecting frame is fixedly connected to the bottom of the slide, the motor is fixedly installed on the outside of one of the connecting frames, the telescopic rod is rotatably installed on the inside of the connecting frame, the spring is sleeved on the outside of the telescopic rod, the clamp is fixedly connected to one side of the telescopic rod, and the anti-slip pad is set on the inside of the clamp.

[0014] Preferably, the two ends of the spring are fixedly connected to the sleeve portion and the sliding portion of the telescopic rod, respectively.

[0015] Preferably, the output end of the cylinder in the energized state is used to drive the lifting frame to move up and down, and the lifting frame in the moving state is used to adjust the height position of the clamping plate.

[0016] Preferably, the output shaft of the motor is fixedly connected to one of the telescopic rods, and the output shaft of the motor in the energized state is used to drive the clamp to rotate via the telescopic rod.

[0017] Preferably, the two slides in the moving state are respectively used to drive the two clamps and the anti-slip pad to move synchronously closer or further apart.

[0018] Preferably, the two clamping plates and the anti-slip pad, which are in close proximity in a moving state, are used to clamp the workpiece.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. By setting up an electric push rod to drive the connecting rod to move, the racks on both sides move synchronously. Since the gears mesh with the racks, the two carriages move synchronously in opposite directions on the guide rod, so that the clamping plate can quickly adapt to workpieces of different sizes. The cylinder drives the lifting frame to move up and down, driving the clamping plate to lift and lower as a whole, ensuring that the workpiece is in the best preheating position.

[0021] 2. By setting the anti-slip pad on the inner side of the clamping plate of the clamping mechanism to contact the workpiece, the spring (fitted on the telescopic rod) is compressed to generate adaptive pressure, avoiding rigid clamping damage. This is especially suitable for irregularly shaped parts. As a result, the workpiece is clamped and suspended in the preheating chamber, and hot air or radiation can surround its surface, avoiding temperature differences caused by direct contact with the conveyor roller. The flipping function further ensures that the temperature of the coating adhesion surface is consistent. For complex workpieces, preheating can be carried out while flipping, achieving omnidirectional uniform temperature control and improving the subsequent spraying quality. Attached Figure Description

[0022] Figure 1 This is a front view structural diagram of the present utility model.

[0023] Figure 2 This is a schematic diagram of the drive structure of this utility model.

[0024] Figure 3 This is a schematic diagram of the clamping mechanism of this utility model.

[0025] Figure 4 This utility model Figure 3 A schematic diagram of structure A in the diagram.

[0026] In the diagram: 1. Conveyor roller; 2. Preheating chamber; 3. Drive structure; 301. Cylinder; 302. Lifting frame; 303. Guide rod; 304. Electric push rod; 305. Slide; 306. Rotating shaft; 307. Connecting rod; 308. Rack; 309. Gear; 4. Clamping mechanism; 401. Connecting frame; 402. Motor; 403. Telescopic rod; 404. Spring; 405. Clamping plate; 406. Anti-slip mat. Detailed Implementation

[0027] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0028] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see Figures 1-4An embodiment of a spray preheating device provided by this utility model:

[0032] A spray preheating device, comprising:

[0033] The conveyor roller 1 has a preheating chamber 2 on its top and a drive structure 3 and a clamping mechanism 4 on its surface.

[0034] The drive structure 3 includes a cylinder 301, a lifting frame 302, a guide rod 303, an electric push rod 304, a slide 305, a rotating shaft 306, a connecting rod 307, a rack 308, and a gear 309.

[0035] Cylinder 301 is fixedly installed on the top of preheating chamber 2, lifting frame 302 is fixedly connected to the output end of cylinder 301, guide rod 303 is fixedly connected to the inner side of lifting frame 302, electric push rod 304 is fixedly installed on the outer side of guide rod 303, slide 305 is slidably connected to the outer wall of guide rod 303, rotating shaft 306 is rotatably connected to guide rod 303, connecting rod 307 is fixedly connected to the outer side of slide 305, rack 308 is fixedly assembled on the surface of connecting rod 307, and gear 309 is fixedly assembled on the bottom of rotating shaft 306;

[0036] The connecting rod 307 is fixedly connected to the output end of the electric push rod 304, and the output end of the electric push rod 304 in the energized state is used to drive the connecting rod 307 to move. The above structural design enables the electric push rod 304 in the running state to push the connecting rod 307 to move horizontally, and the connecting rod 307 in the moving state drives a slide 305 to move.

[0037] Gear 309 meshes with two racks 308, and the meshed gear 309 and two racks 308 are used to drive the two slides 305 to move synchronously. The above structural design enables the meshing transmission of gear 309 and racks 308 to drive the two slides 305 to slide towards each other along the outer wall trajectory of guide rod 303.

[0038] In one preferred embodiment, the clamping mechanism 4 includes a connecting frame 401, a motor 402, a telescopic rod 403, a spring 404, a clamping plate 405, and an anti-slip pad 406;

[0039] The connecting frame 401 is fixedly connected to the bottom of the slide 305. The motor 402 is fixedly installed on the outside of the connecting frame 401. The telescopic rod 403 is rotatably installed on the inside of the connecting frame 401. The spring 404 is sleeved on the outside of the telescopic rod 403. The clamping plate 405 is fixedly connected to one side of the telescopic rod 403. The anti-slip pad 406 is set on the inside of the clamping plate 405. The above structural design allows the motor 402 to be powered on and run after clamping. The output shaft of the running motor 402 drives the telescopic rod 403 to rotate. Then, the telescopic rod 403 drives the clamping plate 405 and the anti-slip pad 406 to flip, thereby causing the workpiece to flip. The heating element in the preheating chamber 2 radiates heat to the surface of the workpiece from multiple directions. During the flipping process, each surface of the workpiece is exposed to the heat source in turn, avoiding dead corners and achieving uniform heating.

[0040] In one preferred embodiment, the two ends of the spring 404 are fixedly connected to the sleeve portion and the slide portion of the telescopic rod 403, respectively. The above structural design enables the spring 404 to provide buffering during the clamping process and avoid rigid impact.

[0041] In one preferred embodiment, the output end of the energized cylinder 301 is used to drive the lifting frame 302 to move up and down, and the lifting frame 302 in the moving state is used to adjust the height position of the clamping plate 405. The above structural design makes it possible to connect the cylinder 301 to power and run it, so that the output end of the cylinder 301 in the running state drives the lifting frame 302 to move down, and the lifting frame 302 in the descending state drives the clamping plate mechanism 4 to reach the workpiece height.

[0042] In one preferred embodiment, the output shaft of the motor 402 is fixedly connected to a telescopic rod 403, and the output shaft of the motor 402 in the energized state is used to drive the clamping plate 405 to flip through the telescopic rod 403. The above structural design enables the output shaft of the motor 402 in the running state to drive the telescopic rod 403 to rotate, and then drive the anti-slip pad 406 of the clamping plate 405 to flip through the telescopic rod 403, thereby driving the workpiece to flip.

[0043] In one preferred embodiment, the two slides 305 in the moving state are respectively used to drive the two clamping plates 405 and the anti-slip pad 406 to move synchronously closer or further apart. The above structural design enables the gear 309 and the two racks 308 in the meshing state to drive the two slides 305 to slide towards each other along the outer wall trajectory of the guide rod 303, and the two slides 305 in the moving state drive the two clamping plates 405 and the anti-slip pad 406 to move synchronously closer together.

[0044] In one preferred embodiment, two clamping plates 405 and anti-slip pads 406 in a close moving state are used to clamp the workpiece. The above structural design enables the two slides 305 in the moving state to drive the two clamping plates 405 and anti-slip pads 406 to move synchronously closer to each other, so that the two clamping plates 405 and anti-slip pads 406 in a close moving state clamp the workpiece.

[0045] The working principle of this utility model is as follows: The workpiece is conveyed to the preheating chamber 2 by the conveyor roller 1. At this time, the cylinder 301 is powered on and operated, so that the output end of the cylinder 301 drives the lifting frame 302 to move downward. The lifting frame 302 in the downward state drives the clamping mechanism 4 to reach the workpiece height. Then, the electric push rod 304 is powered on and operated, so that the electric push rod 304 in the operating state pushes the connecting rod 307 to move horizontally. The moving connecting rod 307 drives a slide 305 to move. The moving slide 305 then drives a rack 308 to move. Through the gear 309 and the rack 308, the movement is achieved. The meshing transmission of 8 causes the meshing gear 309 and the two racks 308 to drive the two slides 305 to slide towards each other along the outer wall trajectory of the guide rod 303. The two slides 305 in the moving state respectively drive the two clamping plates 405 and the anti-slip pad 406 to move synchronously closer to each other, so that the two clamping plates 405 and the anti-slip pad 406 in the moving state clamp the workpiece. The spring 404 provides buffering during the clamping process to avoid rigid impact, while the flexible material of the anti-slip pad 406 can adapt to the irregular workpiece surface. The extension and contraction of the spring 404 compensates for the workpiece shape deviation and ensures clamping stability.

[0046] After clamping is completed, the motor 402 is powered on and started, causing the output shaft of the running motor 402 to drive a telescopic rod 403 to rotate. The telescopic rod 403 then drives the clamping plate 405 and the anti-slip pad 406 to flip, thereby causing the workpiece to flip. The heating element in the preheating chamber 2 radiates heat to the surface of the workpiece from multiple directions. During the flipping process, each surface of the workpiece is exposed to the heat source in turn, avoiding dead corners and achieving uniform heating. Thus, the workpiece is clamped and suspended in the preheating chamber 2, and hot air or radiation can surround its surface, avoiding temperature differences caused by direct contact with the conveyor roller 1. The flipping function further ensures that the temperature of the coating adhesion surface is consistent. For complex workpieces, preheating can be carried out while flipping, achieving omnidirectional uniform temperature control and improving the subsequent spraying quality. As mentioned above, after preheating is completed, the cylinder 301 lifts the clamping plate 405, the electric push rod 304 opens the clamping plate gap, and the workpiece enters the next process with the conveyor roller 1. The spring 404 automatically returns and resets the clamping plate 405.

[0047] The above description is merely an embodiment of this utility model, and common knowledge regarding specific structures and characteristics is not described in detail here. It will be apparent to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this utility model is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A spray preheating device, characterized in that, It includes: A conveyor roller (1) is provided with a preheating chamber (2) on its top. The surface of the preheating chamber (2) is provided with a drive structure (3) and a clamping mechanism (4). The drive structure (3) includes a cylinder (301), a lifting frame (302), a guide rod (303), an electric push rod (304), a slide (305), a rotating shaft (306), a connecting rod (307), a rack (308), and a gear (309); The cylinder (301) is fixedly installed on the top of the preheating chamber (2), the lifting frame (302) is fixedly connected to the output end of the cylinder (301), the guide rod (303) is fixedly connected to the inner side of the lifting frame (302), the electric push rod (304) is fixedly installed on the outer side of the guide rod (303), the slide (305) is slidably connected to the outer wall of the guide rod (303), the rotating shaft (306) is rotatably connected to the guide rod (303), the connecting rod (307) is fixedly connected to the outer side of one of the slides (305), the rack (308) is fixedly assembled on the surface of the connecting rod (307), and the gear (309) is fixedly assembled on the bottom of the rotating shaft (306).

2. A preheating device for spray painting according to claim 1, characterized in that: The connecting rod (307) is fixedly connected to the output end of the electric push rod (304), and the output end of the electric push rod (304) in the energized state is used to drive the connecting rod (307) to move.

3. A preheating device for spray painting according to claim 1, characterized in that: The gear (309) meshes with the two racks (308), and the gear (309) and the two racks (308) in the meshing state are used to drive the two carriages (305) to move synchronously.

4. A preheating device for spray painting according to claim 1, characterized in that: The clamping mechanism (4) includes a connecting frame (401), a motor (402), a telescopic rod (403), a spring (404), a clamping plate (405), and an anti-slip pad (406); The connecting frame (401) is fixedly connected to the bottom of the slide (305), the motor (402) is fixedly installed on the outside of one of the connecting frames (401), the telescopic rod (403) is rotatably installed on the inside of the connecting frame (401), the spring (404) is sleeved on the outside of the telescopic rod (403), the clamping plate (405) is fixedly connected to one side of the telescopic rod (403), and the anti-slip pad (406) is disposed on the inside of the clamping plate (405).

5. A preheating device for spray painting according to claim 4, characterized in that: The two ends of the spring (404) are fixedly connected to the sleeve part and the sliding part of the telescopic rod (403), respectively.

6. A preheating device for spray painting according to claim 4, characterized in that: The output end of the cylinder (301) in the energized state is used to drive the lifting frame (302) to move up and down, and the lifting frame (302) in the moving up and down state is used to adjust the height position of the clamp (405).

7. A spray preheating device according to claim 4, wherein: The output shaft of the motor (402) is fixedly connected to a telescopic rod (403), and the output shaft of the motor (402) in the energized state is used to drive the clamp (405) to rotate through the telescopic rod (403).

8. A spray preheating device according to claim 4, characterized in that: The two slides (305) in the moving state are respectively used to drive the two clamps (405) and the anti-slip pad (406) to move synchronously closer or further apart.

9. A preheating device for spray painting according to claim 4, characterized in that: The two clamping plates (405) and the anti-slip pad (406) in a close-to-moving state are used to clamp the workpiece.

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