Drying device for electrostatic powder coating processing

Abstract

The utility model relates to a drying device for electrostatic powder coating processing, which comprises a drying box, a first spiral conveying rod and a motor, a spiral elevator is arranged on one side of the drying box, the spiral elevator comprises a conveying barrel and a second spiral conveying rod arranged in the conveying barrel, one side of the upper end of the conveying barrel is communicated with a discharging barrel, and the other side of the upper end of the conveying barrel is communicated with the motor. One side of the lower end of the conveying barrel is communicated with a feeding box, the other end of the discharging barrel is obliquely arranged downwards and is communicated with the drying box, one end of the second spiral conveying rod extends out of the upper end of the conveying barrel, and a first transmission mechanism capable of driving the second spiral conveying rod to rotate is connected between the second spiral conveying rod and the motor; the motor serves as driving force to drive the second spiral conveying rod to rotate, then the first transmission mechanism drives the second spiral conveying rod to rotate, and therefore the first spiral conveying rod and the second spiral conveying rod can be driven to rotate at the same time only through one motor, the manufacturing cost is reduced, and the effects of saving energy and reducing noise are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of powder coating production, and particularly relates to a drying device for processing electrostatic powder coatings. Background Art

[0002] Electrostatic powder coatings are coatings sprayed out by an electrostatic powder spray gun, making the powder particles carry negative charges. During the processing of electrostatic powder coatings, it is necessary to dry the powder coatings. The powder coatings are placed in a drying box, and then dried by heating. Before drying, it is necessary to add powder coatings into the drying box, and the feeding port is generally located at the upper end of the drying box, so the feeding work is rather troublesome, which to a certain extent affects the processing and production efficiency. Content of the Utility Model

[0003] The utility model aims to solve at least one of the problems existing in the related art to a certain extent. For this purpose, the utility model provides a drying device for processing electrostatic powder coatings.

[0004] To achieve the above object, the utility model provides the following technical solutions:

[0005] A drying device for processing electrostatic powder coatings includes a drying box, a first spiral conveyor rotatably installed in the drying box, and a motor provided at the upper end of the drying box for driving the first spiral conveyor to rotate. A spiral elevator is provided on one side of the drying box. The spiral elevator includes a conveying cylinder and a second spiral conveyor provided in the conveying cylinder. An outlet cylinder is communicated with the upper end side of the conveying cylinder, and a feed box is communicated with the lower end side of the conveying cylinder. The other end of the outlet cylinder is inclined downward and communicated with the drying box. One end of the second spiral conveyor extends out of the upper end of the conveying cylinder, and a first transmission mechanism capable of driving the second spiral conveyor to rotate is connected between the second spiral conveyor and the motor.

[0006] In some embodiments, the first transmission mechanism includes a first belt pulley provided on the output shaft of the motor, a second belt pulley provided on the second spiral conveyor, and a belt sleeved between the first belt pulley and the second belt pulley.

[0007] In some embodiments, a guide cylinder that penetrates up and down is sleeved outside the first spiral conveyor. A lower support rod is connected between the lower end of the guide cylinder and the bottom wall of the drying box, and an upper support rod is connected between the upper end of the guide cylinder and the side wall of the drying box.

[0008] In some embodiments, a guide plate that opens outward and is inclined downward is provided at the upper end opening of the guide cylinder.

[0009] In some embodiments, a first stirring shaft and a second stirring shaft are rotatably installed on the inner end surface of the drying box and on the left and right sides of the first spiral conveyor rod respectively, and stirring rods are arranged on both the first stirring shaft and the second stirring shaft.

[0010] In some embodiments, a main gear is arranged on the first spiral conveyor rod, a first transmission gear is arranged on the first stirring shaft, a second transmission gear is arranged on the second stirring shaft, and a toothed belt is sleeved and connected outside the main gear, the first transmission gear and the second transmission gear.

[0011] In some embodiments, a first tensioning assembly and a second tensioning assembly are arranged on the inner end surface of the drying box. The first tensioning assembly is arranged between the main gear and the first transmission gear, and the second tensioning assembly is arranged between the main gear and the second transmission gear. The first tensioning assembly and the second tensioning assembly have the same structure, and both are two pressing rollers arranged at intervals front and back. The two pressing rollers respectively abut against the outer side of the toothed belt.

[0012] In some embodiments, a motor mounting seat for mounting the motor is arranged at the upper end of the drying box, an exhaust pipe is further arranged at the upper end of the drying box, and a discharge pipe is arranged at the lower end of the drying box.

[0013] In some embodiments, the drying box includes an inner box and an outer box, and a heating plate is arranged between the inner box and the outer box.

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] 1. First, through the arrangement of the screw elevator, it is convenient for workers to add powder coatings. During operation, the powder coatings are put into the feeding box, and then through the action of the second spiral conveyor rod, the powder coatings are conveyed upward in the conveying cylinder, and finally conveyed to the inside of the drying box through the discharge cylinder, greatly reducing the labor intensity of workers and improving the production efficiency at the same time;

[0016] 2. In addition, the rotation of its second spiral conveyor rod is driven by a motor as a driving force, and then driven to rotate through the first transmission mechanism. Therefore, only one motor is needed to drive the first spiral conveyor rod and the second spiral conveyor rod to rotate simultaneously, thereby reducing the manufacturing cost and achieving the effects of energy saving and noise reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional schematic diagram of the present utility model;

[0018] Figure 2 is a top view schematic diagram of the present utility model;

[0019] Figure 3 For the present utility modelFigure 2 Schematic cross-sectional view at A-A;

[0020] Figure 4 This is a utility model Figure 2 Schematic cross-sectional view at B-B. Detailed implementation manners

[0021] The following detailed implementation content provides various different embodiments or examples for implementing the present utility model. Of course, these are only embodiments or examples and are not intended to be restrictive. Additionally, repeated reference numerals may be used in different embodiments, such as repeated numbers and / or letters. These repetitions are for the purpose of simply and clearly describing the present utility model and do not represent a specific relationship between the different embodiments and / or structures being discussed.

[0022] As Figures 1-4 shown, a drying device for electrostatic powder coating processing includes a drying box 1, a first spiral conveyor 2 rotatably installed in the drying box 1, and a motor 3 provided at the upper end of the drying box 1 for driving the rotation of the first spiral conveyor 2. A spiral elevator is provided on one side of the drying box 1. The spiral elevator includes a conveying cylinder 4 and a second spiral conveyor 5 provided in the conveying cylinder 4. A discharge cylinder 6 is communicated with one side of the upper end of the conveying cylinder 4, and a feed box 7 is communicated with one side of the lower end of the conveying cylinder 4. The other end of the discharge cylinder 6 is inclined downward and communicated with the drying box 1. One end of the second spiral conveyor 5 extends out of the upper end of the conveying cylinder 4, and a first transmission mechanism capable of driving the rotation of the second spiral conveyor 5 is connected between the second spiral conveyor 5 and the motor 3.

[0023] In the present utility model, first, through the setting of the spiral elevator, it is convenient for workers to add powder coatings. During operation, the powder coatings are placed in the feed box 7, and then through the action of the second spiral conveyor 5, the powder coatings are conveyed upward in the conveying cylinder 4 and finally conveyed into the drying box 1 through the discharge cylinder 6, greatly reducing the labor intensity of workers and improving the production efficiency at the same time.

[0024] In addition, the rotation of the second spiral conveyor 5 is driven by the motor 3 as the driving force, and then driven to rotate through the first transmission mechanism. Thus, only one motor 3 is needed to drive the simultaneous rotation of the first spiral conveyor 2 and the second spiral conveyor 5, thereby reducing the manufacturing cost and achieving the effects of energy conservation and noise reduction.

[0025] Refer to Figures 1-3 shown, the first transmission mechanism includes a first belt pulley 21 provided on the output shaft of the motor 3, a second belt pulley 22 provided on the second spiral conveyor 5, and a belt 23 sleeved and connected between the first belt pulley 21 and the second belt pulley 22.

[0026] During operation, the motor 3 drives the first pulley 21 to rotate. Under the action of the belt 23, the second pulley 22 is driven to rotate, thereby driving the second screw conveyor rod 5 to rotate, achieving the effect that one motor 3 can drive the first screw conveyor rod 2 and the second screw conveyor rod 5 to rotate simultaneously.

[0027] See Figures 3-4 As shown, a material guiding cylinder 31 that penetrates up and down is sleeved outside the first screw conveyor rod 2. A lower support rod 32 is connected between the lower end of the material guiding cylinder 31 and the bottom wall of the drying box 1, and an upper support rod 33 is connected between the upper end of the material guiding cylinder 31 and the side wall of the drying box 1. First, the material guiding cylinder 31 is supported and fixed by the upper support rod 33 and the lower support rod 32. Then, through the action of the material guiding cylinder 31, the powdered coating is guided to be conveyed upward inside the drying box 1 and then scattered at the upper end of the material guiding cylinder 31, improving the drying effect of the powdered coating.

[0028] Furthermore, a material guiding plate 41 that is inclined downward and outward is provided at the upper end opening of the material guiding cylinder 31. When the powdered coating is scattered at the upper end of the material guiding cylinder 31, the powdered coating is further guided and conveyed outward by the material guiding plate 41, increasing the scattering range of the powdered coating and simultaneously turning the powdered coating, further improving the drying effect of the powdered coating.

[0029] In the present utility model, a first stirring shaft 51 and a second stirring shaft 52 are respectively rotatably installed on the inner end surface of the drying box 1 and on the left and right sides of the first screw conveyor rod 2. Stirring rods 53 are provided on both the first stirring shaft 51 and the second stirring shaft 52.

[0030] Furthermore, a main gear 61 is provided on the first screw conveyor rod 2, a first transmission gear 62 is provided on the first stirring shaft 51, a second transmission gear 63 is provided on the second stirring shaft 52, and a toothed belt 64 is sleeved and connected outside the main gear 61, the first transmission gear 62, and the second transmission gear 63.

[0031] During operation, the motor 3 drives the first screw conveyor rod 2 and the main gear 61 to rotate. Then, under the action of the toothed belt 64, the first transmission gear 62 and the second transmission gear 63 are driven to rotate, thereby rotating and stirring the first stirring shaft 51 and the second stirring shaft 52, which can turn the powdered coating and further improve the drying effect of the powdered coating.

[0032] On the inner end face of the drying box 1, a first tensioning assembly and a second tensioning assembly are provided. The first tensioning assembly is arranged between the main gear 61 and the first transmission gear 62, and the second tensioning assembly is arranged between the main gear 61 and the second transmission gear 63. The first tensioning assembly and the second tensioning assembly have the same structure, and both are two pressing rollers 71 arranged at intervals front and back. The two pressing rollers 71 respectively abut against the outer side of the toothed belt 64, which can ensure that the toothed belt 64 can drive the first transmission gear 62 and the second transmission gear 63 on both sides to rotate, improving the stability during operation.

[0033] In the present utility model, a motor mounting seat 81 for mounting the motor 3 is provided at the upper end of the drying box 1, an exhaust pipe 82 is further provided at the upper end of the drying box 1, and a discharge pipe 83 is provided at the lower end of the drying box 1.

[0034] In the present utility model, the drying box 1 includes an inner box 91 and an outer box 92, and a heating plate 93 is provided between the inner box 91 and the outer box 92.

[0035] Combined with the drawings and the above display and description, the basic principles, main features and advantages of the present utility model have been described. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. The above embodiments and the description in the specification only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A drying device for electrostatic powder coating processing, comprising a drying box (1), a first screw conveying rod (2) rotatably mounted in the drying box (1), and a motor (3) disposed at the upper end of the drying box (1) for driving the first screw conveying rod (2) to rotate, characterized in that: A screw elevator is arranged on one side of the drying box (1), and the screw elevator includes a conveying cylinder (4) and a second screw conveying rod (5) arranged in the conveying cylinder (4); a discharge cylinder (6) is connected to one side of the upper end of the conveying cylinder (4), and a feed box (7) is connected to one side of the lower end of the conveying cylinder (4); the other end of the discharge cylinder (6) is arranged to be inclined downward and is connected to the drying box (1); one end of the second screw conveying rod (5) extends out of the upper end of the conveying cylinder (4), and a first transmission mechanism capable of driving the second screw conveying rod (5) to rotate is connected to the motor (3).

2. The drying device for electrostatic powder coating processing according to claim 1, characterized in that: The first transmission mechanism comprises a first pulley (21) arranged on the output shaft of the motor (3), a second pulley (22) is arranged on the second spiral conveying rod (5), and a belt (23) is connected between the first pulley (21) and the second pulley (22).

3. The drying device for electrostatic powder coating processing according to claim 1, characterized in that: A material guide cylinder (31) is provided on the outer shell of the first spiral conveying rod (2) and passes through the material guide cylinder (31) from top to bottom. A lower support rod (32) is connected between the lower end of the material guide cylinder (31) and the bottom wall of the drying box (1). An upper support rod (33) is connected between the upper end of the material guide cylinder (31) and the side wall of the drying box (1).

4. The drying device for electrostatic powder coating processing according to claim 3 is characterized in that: A material guide plate (41) is arranged at the upper end opening of the material guide cylinder (31) and is arranged outward and inclined downward.

5. A drying device for electrostatic powder coating processing according to any one of claims 1 to 4, characterized in that: A first stirring shaft (51) and a second stirring shaft (52) are rotatably mounted on the inner end surface of the drying box (1) and located on the left and right sides of the first spiral conveying rod (2), and stirring rods (53) are provided on both the first stirring shaft (51) and the second stirring shaft (52).

6. The drying device for electrostatic powder coating processing according to claim 5, characterized in that: A main gear (61) is arranged on the first spiral conveying rod (2), a first transmission gear (62) is arranged on the first stirring shaft (51), a second transmission gear (63) is arranged on the second stirring shaft (52), and a toothed belt (64) is arranged outside the main gear (61), the first transmission gear (62) and the second transmission gear (63) to connect.

7. The drying device for electrostatic powder coating processing according to claim 6, characterized in that: A first tensioning assembly and a second tensioning assembly are arranged on the inner end surface of the drying box (1); the first tensioning assembly is arranged between the main gear (61) and the first transmission gear (62); the second tensioning assembly is arranged between the main gear (61) and the second transmission gear (63); the first tensioning assembly and the second tensioning assembly have the same structure, both of which are two pressure rollers (71) arranged at a front-to-back interval, and the two pressure rollers (71) respectively abut against the outer side of the toothed belt (64).

8. The drying device for electrostatic powder coating processing according to claim 1, characterized in that: A motor mounting seat (81) for mounting the motor (3) is arranged at the upper end of the drying box (1), an exhaust pipe (82) is also arranged at the upper end of the drying box (1), and a discharge pipe (83) is arranged at the lower end of the drying box (1).

9. The drying device for electrostatic powder coating processing according to claim 1, characterized in that: The drying box (1) comprises an inner box (91) and an outer box (92), and a heating plate (93) is arranged between the inner box (91) and the outer box (92).

Images