Electrophoretic paint drying device

Abstract

The utility model discloses an electrophoretic paint drying device, which relates to the field of electrophoretic coating and comprises a bottom plate, the upper side of the bottom plate is fixedly connected with a heat preservation box, the upper side of the heat preservation box is slidably connected with a sealing cover, the upper side of the bottom plate is fixedly connected with a drying mechanism, and the left side and the right side of the heat preservation box are fixedly connected with anti-scald mechanisms. The circulating air pump is used for driving air in the heat preservation box to continuously make contact with the drying agent, the drying agent is used for absorbing water vapor in the heat preservation box, meanwhile, the air in the heat preservation box is driven to flow, airflow continuously injected into the drying box is used for driving the rotating fan to rotate, and the rotating shaft is driven to drive the spiral rotating blades to move. And the spiral rotating blades continuously stir the drying agent, so that the airflow is in full contact with the drying agent, the water absorption efficiency of the drying agent is ensured, the water vapor content in the heat preservation box is effectively reduced, and the drying effect on workpieces is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of electrophoretic coating, especially to an electrophoretic paint drying device. BACKGROUND

[0002] Electrophoretic paint, also known as electrophoretic coating, can form a uniform and dense film layer in the coating process, covering the fine defects on the surface of the object, providing excellent appearance effect, and the covering layer of the electrophoretic paint has strong sealing property and good anticorrosion protection effect on metal materials, prolonging the service life of the coated object. Electrophoretic paint usually uses an external electric field to make the pigment and resin particles suspended in the electrophoretic liquid migrate directionally and deposit on the surface of the substrate of one of the electrodes. After electrophoretic coating of the workpiece, a series of post-treatments are required, including water washing, drying and the like. The workpiece after water washing needs to enter the drying device to remove the surface moisture.

[0003] Common electrophoretic paint drying devices mostly put the workpiece into a box with heating function for a period of time. In order to ensure the drying efficiency, the box is mostly closed. However, the water droplets on the workpiece cannot be discharged after vaporization, resulting in an increase in humidity inside the box, affecting the drying efficiency. At the same time, the air in the sealed box expands after a long time of heating, and the air pressure in the box is higher than that in the external environment. When the box is opened by the worker, the air moves outward, scalding the surrounding workers. Therefore, an electrophoretic paint drying device is needed to solve the above problems. SUMMARY

[0004] The utility model aims at providing an electrophoretic paint drying device to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an electrophoretic paint drying device, comprising a bottom plate, the upper side of the bottom plate is fixedly connected with a heat preservation box, the upper side of the heat preservation box is slidably connected with a sealing cover, the upper side of the bottom plate is fixedly connected with a drying mechanism, and the left and right sides of the heat preservation box are both fixedly connected with an anti-scalding mechanism.

[0006] The drying mechanism comprises a drying box fixedly connected with the upper side of the bottom plate, the upper side of the drying box is detachably connected with a feeding cover, the upper side of the feeding cover is fixedly connected with a circulating air pump, the input end of the circulating air pump is fixedly connected with an air inlet pipe, one end of the air inlet pipe away from the circulating air pump penetrates through the right side inner wall of the heat preservation box, the output end of the circulating air pump is fixedly connected with a gas delivery pipe, one end of the gas delivery pipe away from the circulating air pump penetrates through the front side inner wall of the drying box, and the right side of the drying box is provided with an air outlet hole.

[0007] Preferably, an L-shaped partition is fixedly connected to the inner bottom wall of the drying box, a rotating fan is fixedly connected to the inner bottom wall of the drying box, a rotating shaft is fixedly connected to the rear side of the rotating fan, the rear end of the rotating shaft passes through the rear side of the L-shaped partition and is rotatably connected to the rear inner wall of the drying box, and a spiral rotating blade is fixedly connected to the surface of the rotating shaft.

[0008] Preferably, the heat preservation box has a mounting hole on the front side, a heat absorption box is fixedly connected to the inner wall of the mounting hole, a heat absorption hole is opened on the rear side of the heat absorption box, an electric heating wire is fixedly connected to the inner wall of the heat preservation box, and a placement plate is fixedly connected to the inner bottom wall of the heat preservation box.

[0009] Preferably, the anti-scalding mechanism includes two sleeves fixedly connected to the left and right sides of the heat preservation box, a piston slidably connected to the inner wall of the sleeve, a return spring fixedly connected to the front inner wall of the sleeve, the rear end of the return spring fixedly connected to the front side of the piston, a connecting hole opened on the rear side of the sleeve, a connecting rod slidably connected to the inner wall of the connecting hole, the front end of the connecting rod fixedly connected to the rear side of the piston, and a first magnet fixedly connected to the rear end of the connecting rod.

[0010] Preferably, the sleeve has an air outlet on its front side, an air outlet pipe is fixedly connected to the inner wall of the air outlet, and an air outlet one-way valve is fixedly connected to the surface of the air outlet pipe. The sleeve also has an air intake hole on its front side, an air intake pipe is fixedly connected to the inner wall of the air intake hole, and an air intake one-way valve is fixedly connected to the surface of the air intake pipe. The end of the air intake pipe away from the sleeve penetrates the inner wall of the front side of the heat absorption box.

[0011] Preferably, a push rod is fixedly connected to the lower side of the sealing cover. There are two push rods, which are symmetrically arranged on the lower side of the sealing cover with the vertical center line of the lower side of the sealing cover as the axis of symmetry. A second magnet is fixedly connected to the front end of each of the two push rods. The first magnet and the second magnet are magnetically attracted to each other. Limiting rings are fixedly connected to the left and right sides of the heat preservation box. The inner wall of the limiting ring is slidably connected to the surface of the adjacent push rod.

[0012] In summary, the technical effects and advantages of this utility model are as follows:

[0013] 1. In this utility model, a circulating air pump is used to continuously bring the air in the heat preservation box into contact with the desiccant. The desiccant absorbs the moisture in the heat preservation box, while simultaneously driving the air to circulate in the heat preservation box, thus ensuring the drying effect on the workpiece.

[0014] 2. In this utility model, the airflow continuously injected into the drying box drives the rotating fan to rotate, which in turn drives the rotating shaft to move the spiral rotating blades. The spiral rotating blades continuously stir the desiccant, allowing the airflow to fully contact the desiccant, ensuring the desiccant's water absorption efficiency and effectively reducing the moisture content in the insulation box.

[0015] 3. In this utility model, the action of pushing open the sealing cover is used to link the operation of the anti-scalding mechanism. When the staff pushes the sealing cover backward, the second magnet and the first magnet are tightly attracted, which drives the piston to move backward. Due to the restriction of the intake one-way valve and the exhaust one-way valve, the hot air in the heat preservation box is drawn into the sleeve by the intake pipe. The outside air is drawn into the heat preservation box under air pressure, which prevents the hot air in the heat preservation box from scalding the staff along the open gap. After the piston moves backward to the limit position, the first magnet and the second magnet separate. Under the action of the return spring, the piston moves forward, which helps the piston to quickly return forward and discharge the hot air in the sleeve to the unoccupied area through the exhaust pipe. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model;

[0018] Figure 2 This is a cross-sectional view of the insulation box in an embodiment of the present utility model;

[0019] Figure 3 This is a three-dimensional structural diagram of the drying mechanism in an embodiment of the present invention;

[0020] Figure 4 This is a cross-sectional view of the drying box (filling cover) in an embodiment of the present utility model;

[0021] Figure 5 This is a schematic diagram of the right-side cross-sectional view of the drying box (filling cover) in an embodiment of this utility model;

[0022] Figure 6 This is a three-dimensional structural diagram of the anti-scalding mechanism in an embodiment of this utility model;

[0023] Figure 7 This is a cross-sectional view of the sleeve in an embodiment of the present invention.

[0024] In the diagram: 1. Base plate; 2. Insulation box; 3. Sealing cover; 4. Electric heating wire; 5. Placement plate; 6. Push rod; 7. Limiting ring; 8. Drying box; 9. Filling cover; 10. Circulating air pump; 11. Air inlet pipe; 12. Air delivery pipe; 13. Air injection pipe; 14. Rotary fan; 15. L-shaped partition plate; 16. Rotating shaft; 17. Spiral rotating blade; 18. Heat absorption box; 19. Sleeve; 20. Piston; 21. Connecting rod; 22. First magnet; 23. Second magnet; 24. Return spring; 27. Air intake pipe; 28. Air intake check valve; 25. Air outlet pipe; 26. Air outlet check valve. Detailed Implementation

[0025] 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.

[0026] Example: Reference Figures 1-7 An electrophoretic paint drying device is shown, including a base plate 1, an insulated box 2 fixedly connected to the upper side of the base plate 1, a sealing cover 3 slidably connected to the upper side of the insulated box 2, a drying mechanism fixedly connected to the upper side of the base plate 1, and anti-scalding mechanisms fixedly connected to both the left and right sides of the insulated box 2.

[0027] The drying mechanism includes a drying box 8 fixedly connected to the upper side of the base plate 1. A filling cover 9 is detachably connected to the upper side of the drying box 8. A circulating air pump 10 is fixedly connected to the upper side of the filling cover 9. An air inlet pipe 11 is fixedly connected to the input end of the circulating air pump 10. The end of the air inlet pipe 11 away from the circulating air pump 10 passes through the inner wall of the right side of the insulation box 2. An air supply pipe 12 is fixedly connected to the output end of the circulating air pump 10. One end of the air supply pipe 12 passes through the inner wall of the front side of the drying box 8. An exhaust hole is opened on the right side of the drying box 8. An air injection pipe 13 is fixedly connected to the inner wall of the exhaust hole. The other end of the air injection pipe 13 passes through the inner wall of the rear side of the insulation box 2.

[0028] With the above structure, the base plate 1 is set as the installation platform, which is the actual ground. The insulated box 2 and the sealing cover 3 are made of heat insulation material, which can prevent heat loss inside the insulated box 2. The drying box 8 contains solid desiccant that is not easy to crush. The circulating air pump 10 is used as a power source to continuously extract the air from the bottom of the insulated box 2 and then inject it into the drying box 8. The desiccant absorbs moisture and is finally injected back into the upper part of the insulated box 2 to promote gas flow in the insulated box 2 and remove moisture from the drying box.

[0029] Preferably, an L-shaped partition plate 15 is fixedly connected to the inner bottom wall of the drying box 8, a rotating fan 14 is fixedly connected to the inner bottom wall of the drying box 8, a rotating shaft 16 is fixedly connected to the rear side of the rotating fan 14, the rear end of the rotating shaft 16 passes through the rear side of the L-shaped partition plate 15 and is rotatably connected to the rear inner wall of the drying box 8, and a spiral rotating blade 17 is fixedly connected to the surface of the rotating shaft 16.

[0030] By setting an L-shaped partition plate 15, a narrow air duct is divided in the drying box 8 to prevent the desiccant from affecting the rotation of the rotating fan blades. When the air pump is running, the airflow from the insulation box 2 will blow the rotating fan 14 to rotate, which in turn drives the rotating shaft 16 to rotate, so that the spiral rotating blade 17 continuously stirs the desiccant, allowing the desiccant to be fully mixed with the airflow.

[0031] Preferably, the front side of the heat preservation box 2 is provided with an installation hole, the inner wall of the installation hole is fixedly connected with a heat absorption box 18, the rear side of the heat absorption box 18 is provided with a heat absorption hole, the inner wall of the heat preservation box 2 is fixedly connected with an electric heating wire 4, and the inner bottom wall of the heat preservation box 2 is fixedly connected with a placement plate 5.

[0032] The installation holes provide space for the heat absorption box 18. The numerous heat absorption holes on the back of the heat absorption box 18 can disrupt the hot air in the insulation box 2, preventing staff from being burned by the hot air in the insulation box 2 when pushing open the sealing cover 3. The placement plate 5 has grooves to facilitate liquid dripping.

[0033] Preferably, the anti-scalding mechanism includes two sleeves 19 fixedly connected to the left and right sides of the heat preservation box 2, respectively. A piston 20 is slidably connected to the inner wall of the sleeve 19. A return spring 24 is fixedly connected to the front inner wall of the sleeve 19. The rear end of the return spring 24 is fixedly connected to the front side of the piston 20. A connecting hole is opened on the rear side of the sleeve 19. A connecting rod 21 is slidably connected to the inner wall of the connecting hole. The front end of the connecting rod 21 is fixedly connected to the rear side of the piston 20. A first magnet 22 is fixedly connected to the rear end of the connecting rod 21.

[0034] By setting the sleeve 19 as a container, the movement of the piston 20 is facilitated, and the return spring 24 can help the piston 20 quickly return to its original position.

[0035] Preferably, the sleeve 19 has an air outlet on its front side, an air outlet pipe 25 is fixedly connected to the inner wall of the air outlet, an air outlet one-way valve 26 is fixedly connected to the surface of the air outlet pipe 25, an air intake hole is opened on the front side of the sleeve 19, an air intake pipe 27 is fixedly connected to the inner wall of the air intake hole, an air intake one-way valve 28 is fixedly connected to the surface of the air intake pipe 27, and the end of the air intake pipe 27 away from the sleeve 19 passes through the front inner wall of the heat absorption box 18.

[0036] By setting an intake check valve 28 and an exhaust check valve 26 to restrict the direction of airflow, when the piston 20 moves backward, the hot air in the insulation box 2 is drawn into the sleeve 19, and when the piston 20 moves forward, the hot air in the sleeve 19 is discharged to an uninhabited area through the exhaust pipe 25.

[0037] Preferably, a push rod 6 is fixedly connected to the lower side of the sealing cover 3. There are two push rods 6, which are symmetrically arranged on the lower side of the sealing cover 3 with the vertical center line of the lower side of the sealing cover 3 as the axis of symmetry. A second magnet 23 is fixedly connected to the front end of each of the two push rods 6. The first magnet 22 and the second magnet 23 are magnetically attracted. Limiting rings 7 are fixedly connected to the left and right sides of the heat preservation box 2. The inner wall of the limiting ring 7 is slidably connected to the surface of the adjacent push rod 6.

[0038] By setting the second magnet 23 to link with the first magnet 22, when the sealing cover 3 is pushed back, the push rod 6 drives the second magnet 23 to move. The second magnet 23 attracts the first magnet 22 and moves back. When the piston 20 moves to the limit position, enough hot air is drawn into the sleeve. At this time, the sealing cover 3 is not completely pushed open. The magnetic force between the first magnet 22 and the second magnet 23 is insufficient to resist the resistance, and the two separate. The sealing cover 3 can still be opened back, but some of the hot air in the heat preservation box 2 has been extracted. The outside air is drawn into the heat preservation box 2 under air pressure, which prevents the hot air in the heat preservation box 2 from burning the staff along the open gap.

[0039] The working principle of this utility model is as follows: An electrophoretic paint drying device first places the workpiece to be dried on the placement plate 5, then closes the sealing cover 3, and supplies power to the electric heating wire 4. The electric heating wire 4 heats the inside of the heat preservation box 2 to dry the workpiece. Then, the circulating air pump 10 is started. When the circulating air pump 10 is operating, the air at the bottom of the heat preservation box 2 is drawn out through the air inlet pipe 11 and then injected into the drying box through the air delivery pipe 12. After the airflow comes into full contact with the desiccant, the moisture is absorbed, and the dried airflow is finally reinjected into the upper part of the heat preservation box 2 through the air injection pipe 13. After the drying work is completed, the electric heating wire 4 and the circulating air pump 10 are turned off, and the sealing cover 3 is opened backward. During the backward movement of the sealing cover 3, some of the hot air in the heat preservation box 2 is drawn into the sleeve 19, and the outside air is drawn into the heat preservation box 2 through the open gap, preventing the hot air in the heat preservation box 2 from being directly sprayed out when the sealing cover 3 is opened, thus avoiding burns to the staff.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An electrophoretic paint drying device, comprising a base plate (1), characterized in that: A heat preservation box (2) is fixedly connected to the upper side of the base plate (1), a sealing cover (3) is slidably connected to the upper side of the heat preservation box (2), a drying mechanism is fixedly connected to the upper side of the base plate (1), and anti-scalding mechanisms are fixedly connected to both the left and right sides of the heat preservation box (2). The drying mechanism includes a drying box (8) fixedly connected to the upper side of the base plate (1). A filling cover (9) is detachably connected to the upper side of the drying box (8). A circulating air pump (10) is fixedly connected to the upper side of the filling cover (9). An air inlet pipe (11) is fixedly connected to the input end of the circulating air pump (10). One end of the air inlet pipe (11) away from the circulating air pump (10) penetrates the inner wall of the right side of the heat preservation box (2). An air supply pipe (12) is fixedly connected to the output end of the circulating air pump (10). One end of the air supply pipe (12) penetrates the inner wall of the front side of the drying box (8). An exhaust hole is opened on the right side of the drying box (8). An air injection pipe (13) is fixedly connected to the inner wall of the exhaust hole. The other end of the air injection pipe (13) penetrates the inner wall of the rear side of the heat preservation box (2).

2. The electrophoretic paint drying device according to claim 1, characterized in that: An L-shaped partition plate (15) is fixedly connected to the inner bottom wall of the drying box (8). A rotating fan (14) is fixedly connected to the inner bottom wall of the drying box (8). A rotating shaft (16) is fixedly connected to the rear side of the rotating fan (14). The rear end of the rotating shaft (16) passes through the rear side of the L-shaped partition plate (15) and is rotatably connected to the rear inner wall of the drying box (8). A spiral rotating blade (17) is fixedly connected to the surface of the rotating shaft (16).

3. The electrophoretic paint drying device according to claim 1, characterized in that: The front side of the heat preservation box (2) has an installation hole, and the inner wall of the installation hole is fixedly connected to a heat absorption box (18). The rear side of the heat absorption box (18) has a heat absorption hole, the inner wall of the heat preservation box (2) is fixedly connected to an electric heating wire (4), and the inner bottom wall of the heat preservation box (2) is fixedly connected to a placement plate (5).

4. The electrophoretic paint drying device according to claim 1, characterized in that: The anti-scalding mechanism includes two sleeves (19) fixedly connected to the left and right sides of the heat preservation box (2). A piston (20) is slidably connected to the inner wall of the sleeve (19). A return spring (24) is fixedly connected to the inner wall of the front side of the sleeve (19). The rear end of the return spring (24) is fixedly connected to the front side of the piston (20). A connecting hole is opened on the rear side of the sleeve (19). A connecting rod (21) is slidably connected to the inner wall of the connecting hole. The front end of the connecting rod (21) is fixedly connected to the rear side of the piston (20). A first magnet (22) is fixedly connected to the rear end of the connecting rod (21).

5. The electrophoretic paint drying device according to claim 4, characterized in that: The sleeve (19) has an air outlet on its front side. An air outlet pipe (25) is fixedly connected to the inner wall of the air outlet. An air outlet one-way valve (26) is fixedly connected to the surface of the air outlet pipe (25). The sleeve (19) has an air intake hole on its front side. An air intake pipe (27) is fixedly connected to the inner wall of the air intake hole. An air intake one-way valve (28) is fixedly connected to the surface of the air intake pipe (27). The end of the air intake pipe (27) away from the sleeve (19) penetrates the inner wall of the front side of the heat absorption box (18).

6. The electrophoretic paint drying device according to claim 5, characterized in that: A push rod (6) is fixedly connected to the lower side of the sealing cover (3). There are two push rods (6). The two push rods (6) are symmetrically arranged on the lower side of the sealing cover (3) with the vertical center line of the lower side of the sealing cover (3) as the axis of symmetry. The front end of each of the two push rods (6) is fixedly connected to a second magnet (23). The first magnet (22) and the second magnet (23) are magnetically attracted. Limiting rings (7) are fixedly connected to the left and right sides of the heat preservation box (2). The inner wall of the limiting ring (7) is slidably connected to the surface of the adjacent push rod (6).

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