A spraying device with flexible clamping function

Abstract

The present application belongs to the technical field of spraying equipment structure, and particularly relates to a spraying equipment with flexible clamping function. The spraying equipment with flexible clamping function can be used to receive and clamp workpieces of almost all sizes and shapes through the setting of a rotating plate unit, a sleeve joint ring unit, a perforated V-shaped plate unit and a driven plate unit on a supporting chassis unit, so as to ensure the stability of clamping and spraying operation. The driven plate unit can passively receive scattered paint and vibrate to shake off the residual paint on the perforated V-shaped plate unit, so that the paint recovery operation is very comprehensive and complete.

Description

Technical Field

[0001] This invention belongs to the field of spraying equipment structure technology, and particularly relates to a spraying equipment with flexible clamping function. Background Technology

[0002] When spraying powder coatings or regular paints, there are two main issues to consider: 1. How to fully coat the workpiece surface; 2. How to minimize paint waste. For the first issue, a common solution is to suspend the workpiece and rotate it appropriately. The advantage of this method is a good coating effect, but the disadvantage is that it requires relatively complex electrical and mechanical structures, resulting in relatively high usage and maintenance costs.

[0003] Regarding the second problem, a common solution is to install a paint receiving tray under the workpiece to ensure that spilled paint can be recycled and reused. This method is generally effective, but there is usually an installation or conveying structure between the workpiece and the receiving tray. Therefore, the receiving tray can only recover a portion of the spilled paint, and after long-term use, the installation or conveying structure will become covered with paint, which needs to be avoided.

[0004] Chinese utility model patent with patent publication number CN213967271U and publication date of August 17, 2021 discloses a workpiece clamping mechanism for a spraying production line, including a base, a material conveying mechanism rotatably installed inside the base, a lifting mechanism fixed on both sides of the outer wall of the top of the base, a cylinder fixed to the lifting end of the lifting mechanism, a third motor fixed to one end of the piston rod of the cylinder, and a clamping mechanism fixed to the output shaft of the third motor.

[0005] The workpiece clamping mechanism in this utility model patent operates on the following principle.

[0006] The conveying mechanism enables the transport of workpieces. When the workpiece moves between the two clamping mechanisms, the cylinder drives the clamping plate to clamp the workpiece on both sides. The spring, in conjunction with the telescopic sleeve, can buffer and store the force generated by clamping, improving the protection of the workpiece. The second motor can drive the clamped workpiece to lift and lower, facilitating the spraying process. In addition, the third motor can flip the clamped workpiece, facilitating the spraying process.

[0007] In addition, the bristles on the fixing strip can adhere to the surface of the conveyor belt and rotate relative to it under the driving action, and the bristles can remove impurities adhering to the surface of the conveyor belt.

[0008] However, in actual use, the workpiece clamping mechanism still has at least two shortcomings, which are the technical problems that this invention aims to solve.

[0009] 1. The stroke of its cylinder structure is very limited. When a relatively slender workpiece is approximately parallel to the conveyor belt, the clamping mechanism may not be able to clamp the workpiece, which is very troublesome.

[0010] 2. Although the conveyor belt is equipped with brushes, the entire conveyor belt is covered with scattered paint, so the brushes have a huge workload, resulting in poor paint recycling.

[0011] Therefore, in summary, there is an urgent need for a new type of spraying equipment that offers flexible and comprehensive clamping capabilities, and features simple and efficient paint recycling operations. Summary of the Invention

[0012] This invention provides a spraying device with flexible clamping function. By setting a rotating plate unit, a sleeve ring unit, an open V-shaped plate unit, and a driven plate unit on the support base unit, it is possible to: 1. The open V-shaped plate unit can receive and clamp workpieces of almost all sizes and shapes, ensuring the stability of the clamping and spraying operation; 2. The driven plate unit can passively receive spilled paint and vibrate off the paint remaining on the open V-shaped plate unit, thus making the entire paint recycling operation very comprehensive and thorough.

[0013] The technical solution adopted by the present invention to solve the above problems is: a spraying device with flexible clamping function, the structure of which includes a support base unit, a rotating plate unit hinged at one end on the support base unit, a sleeve ring unit disposed on the support base unit and used to limit the rotation angle of the rotating plate unit, an open V-shaped plate unit disposed on the upper surface of the support base unit and used to receive the falling workpiece and the downward scattered paint, and a driven plate unit sleeved on the open V-shaped plate unit and used to drive the rotating plate unit to rotate and vibrate to drop the residual paint on the open V-shaped plate unit.

[0014] A further preferred technical solution is that the supporting base unit includes a base plate, and hinged end columns and limiting end columns disposed on the base plate and respectively located on both sides.

[0015] A further preferred technical solution is that the rotating plate unit includes a transverse round rod disposed on the hinge end column, a mounting ring sleeved on the transverse round rod, and a rectangular plate disposed on the outer ring surface of the mounting ring for mounting the perforated V-shaped plate unit and inserting the sleeve ring unit.

[0016] A further preferred technical solution is that the sleeve ring unit includes a low-position crossbar disposed on the limiting end column, a vertical connecting rod disposed on the end of the low-position crossbar, and a high-position crossbar disposed on the vertical connecting rod.

[0017] A further preferred technical solution is that the sleeve ring unit further includes two sliding rings sleeved on the high-position crossbar, an outwardly convex arc-shaped plate disposed on the two sliding rings and used to reduce the height limit of the high-position crossbar, and a limiting ring disposed on the high-position crossbar and used to bring the two sliding rings together.

[0018] A further preferred technical solution is that the rotating plate unit further includes an open elastic ring sleeved on the mounting ring and used together with the outwardly convex arc plate to support the falling driven plate unit.

[0019] A further preferred technical solution is that the perforated V-shaped plate unit includes two vertical rods disposed on the rectangular plate, and an inclined perforated plate disposed on the upper end surface of the vertical rods for clamping the workpiece and allowing the coating to pass through downwards.

[0020] A further preferred technical solution is that the driven plate unit includes a central horizontal plate for receiving spilled paint, and a mounting hole disposed on the central horizontal plate for inserting the vertical rod.

[0021] A further preferred technical solution is that the driven plate unit further includes an elastic driven block disposed on the side of the middle horizontal plate.

[0022] A further preferred technical solution is that the driven plate unit further includes a fastening nut disposed on the mounting hole. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the present invention.

[0024] Figure 2 This is a schematic diagram of one method of using the present invention.

[0025] Figure 3 This is a schematic diagram of the position and structure of the perforated V-shaped plate unit in this invention.

[0026] Figure 4 This is a schematic diagram of the positional structure of the rotating plate unit in this invention.

[0027] Figure 5 This is a schematic diagram of the driven board unit in this invention.

[0028] Figure 6 This is a schematic diagram of the sleeve ring unit in this invention.

[0029] Figure 7 This is a schematic diagram illustrating the usage of the V-shaped plate unit with openings after the driven plate unit falls and vibrates in this invention.

[0030] Figure 8This is a schematic diagram of the material discharge method after the workpiece has been coated in this invention.

[0031] The meanings of the markings in the diagram are as follows:

[0032] Workpiece a, coating b;

[0033] Cylinder 10, inclined upper conveyor belt 11, inclined lower conveyor belt 12, upper nozzle 13;

[0034] Support base unit 1, rotating plate unit 2, sleeve ring unit 3, perforated V-shaped plate unit 4, driven plate unit 5;

[0035] Base plate 101, hinged end column 102, limiting end column 103, horizontal round rod 201, mounting ring 202, rectangular plate 203, low-position horizontal bar 301, vertical connecting rod 302, high-position horizontal bar 303, sliding ring 304, outwardly convex arc plate 305, limiting ring 306, open elastic ring 204, vertical rod 401, inclined hole plate 402, middle horizontal plate 501, mounting hole 502, elastic driven block 503, fastening nut 504. Detailed Implementation

[0036] The following description is only a preferred embodiment of the present invention and is not intended to limit the scope of the present invention.

[0037] As attached Figure 1-8 As shown, a spraying device with flexible clamping function includes a support base unit 1, a rotating plate unit 2 hinged at one end to the support base unit 1, a sleeve ring unit 3 disposed on the support base unit 1 and used to limit the rotation angle of the rotating plate unit 2, an open V-shaped plate unit 4 disposed on the upper surface of the support base unit 1 and used to receive the falling workpiece a and the downwardly scattered paint b, and a driven plate unit 5 sleeved on the open V-shaped plate unit 4 and used to drive the rotating plate unit 2 to rotate and vibrate to remove residual paint on the open V-shaped plate unit 4.

[0038] In this embodiment, the spraying equipment can be used in conjunction with the cylinder 10, the inclined upper conveyor belt 11, the inclined lower conveyor belt 12, and the upper nozzle 13. The specific usage method is as follows.

[0039] First, initially, the rotating plate unit 2 is horizontal, that is, it rests on the bottom edge of the sleeve ring unit 3, and the driven plate unit 5 and the perforated V-shaped plate unit 4 are fixedly installed.

[0040] Second, a workpiece a rolls off the obliquely upper conveyor belt 11 and stops on the perforated V-shaped plate unit 4. At this time, the upper nozzle 13 is opened to perform the first spraying operation.

[0041] Third, the cylinder 10 is lifted slightly upwards, causing the workpiece a to roll and flip on the perforated V-shaped plate unit 4 without falling off. At this time, the upper nozzle 13 performs a second spraying operation, that is, all spraying operations are completed.

[0042] Fourth, the cylinder 10 then lifts upwards relatively significantly, allowing the workpiece a to roll off the perforated V-shaped plate unit 4 and exit onto the downward-sloping conveyor belt 12. At this point, the entire clamping and unclamping operation is complete.

[0043] Fifth, when workpiece a has been coated for, for example, 1000 times or 10 days, the coating equipment is idle horizontally. The fixing structure on the driven plate unit 5 is loosened, and the workpiece falls down, vibrating the entire coating equipment. As a result, all the paint b remaining on the perforated V-shaped plate unit 4 falls onto the driven plate unit 5, which can then be easily cleaned.

[0044] In addition, it should be noted that: 1. The above-mentioned centralized operation of coatings is more effective in the field of powder coatings; 2. The inclined upper conveyor belt 11 and the inclined lower conveyor belt 12 are set on the left and right respectively; 3. The tilt angle required for workpiece a to flip and the tilt angle required for rolling need to be tested and preset in advance, that is, the lifting amplitude of cylinder 10 is preset.

[0045] The supporting base unit 1 includes a base plate 101, and hinged end columns 102 and limiting end columns 103 disposed on the base plate 101 and located on both sides respectively.

[0046] The rotating plate unit 2 includes a transverse round rod 201 disposed on the hinge end column 102, a mounting ring 202 sleeved on the transverse round rod 201, and a rectangular plate 203 disposed on the outer ring surface of the mounting ring 202 for mounting the perforated V-shaped plate unit 4 and inserting the sleeve ring unit 3.

[0047] The connecting ring unit 3 includes a low horizontal bar 301 disposed on the limiting end column 103, a vertical connecting rod 302 disposed on the end of the low horizontal bar 301, and a high horizontal bar 303 disposed on the vertical connecting rod 302.

[0048] In this embodiment, the high-position crossbar 303 is a round bar.

[0049] The connecting ring unit 3 further includes two sliding rings 304 sleeved on the high-position crossbar 303, an outwardly convex arc plate 305 disposed on the two sliding rings 304 and used to reduce the height limit of the high-position crossbar 303, and a limiting ring 306 disposed on the high-position crossbar 303 and used to bring the two sliding rings 304 together.

[0050] In this embodiment, the material of the convex arc plate 305 is an elastic steel sheet, the sliding ring 304 is sleeved and installed, and the limiting ring 306 is screwed and installed, that is, the high-position crossbar 303 is provided with threads.

[0051] Therefore, the convex arc-shaped plate 305 has at least the following two functions:

[0052] 1. Replace the high-position crossbar 303 and provide a lower, adjustable height limit for the rectangular plate 203. That is, the more curved the outwardly convex arc plate 305 is, the lower the highest rotation position of the rectangular plate 203 will be.

[0053] 2. When the driven plate unit 5 falls and vibrates the residual paint b on the perforated V-shaped plate unit 4, the convex arc plate 305 can buffer the former and upgrade one vibration to multiple vibrations, thereby ensuring that more residual paint b falls and is collected.

[0054] The rotating plate unit 2 also includes an open elastic ring 204 sleeved on the mounting ring 202 and used together with the outwardly convex arc plate 305 to support the falling driven plate unit 5.

[0055] In this embodiment, the function of the open elastic ring 204 is the same as the second function of the convex arc plate 305 described above.

[0056] The perforated V-shaped plate unit 4 includes two vertical rods 401 disposed on the rectangular plate 203, and an inclined perforated plate 402 disposed on the upper end surface of the vertical rods 401 and used to clamp the workpiece a and allow the coating b to pass through downward.

[0057] In this embodiment, the two inclined perforated plates 402 together form a V-shape, achieving a flexible and comprehensive clamping effect, although it is passive. The two inclined perforated plates 402 can be connected at their lower ends or separated appropriately.

[0058] Furthermore, the inclined perforated plate 402 is an open plate rather than a complete plate, so the paint spraying airflow does not flow in the opposite direction and the scattered paint b will not be stirred up over a large area, but will fall directly onto the driven plate unit 5, which is very efficient.

[0059] The driven plate unit 5 includes a central horizontal plate 501 for receiving scattered paint b, and a mounting hole 502 disposed on the central horizontal plate 501 for inserting the vertical rod 401.

[0060] The driven plate unit 5 also includes an elastic driven block 503 disposed on the side of the central horizontal plate 501.

[0061] In this embodiment, the elastic driven block 503 is made of existing medium-elasticity rubber, which is strong enough to rotate and drive the entire spraying equipment, but also provides a certain allowable height error range for the drive structure.

[0062] The driven plate unit 5 also includes a fastening nut 504 disposed on the mounting hole 502.

[0063] In this embodiment, after the fastening nut 504 is removed, the middle horizontal plate 501 falls off and vibrates to remove the residual paint b on the inclined perforated plate 402.

[0064] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various modifications can be made without departing from the spirit of the present invention. These are non-inventive modifications and are protected by patent law as long as they fall within the scope of the claims of the present invention.

Claims

1. A spraying device with flexible clamping function, characterized in that: The structure includes a support base unit (1), a rotating plate unit (2) hinged at one end to the support base unit (1), a sleeve ring unit (3) disposed on the support base unit (1) and used to limit the rotation angle of the rotating plate unit (2), an open V-shaped plate unit (4) disposed on the upper surface of the support base unit (1) and used to receive the falling workpiece (a) and the downward-spreading paint (b), and a driven plate unit (5) sleeved on the open V-shaped plate unit (4) and used to drive the rotating plate unit (2) to rotate and vibrate to remove the residual paint on the open V-shaped plate unit (4). The supporting base unit (1) includes a base plate (101), and hinged end columns (102) and limiting end columns (103) disposed on the base plate (101) and located on both sides respectively. The rotating plate unit (2) includes a transverse round rod (201) disposed on the hinge end column (102), a mounting ring (202) sleeved on the transverse round rod (201), and a rectangular plate (203) disposed on the outer ring surface of the mounting ring (202) for mounting the perforated V-shaped plate unit (4) and inserting the sleeve ring unit (3). The sleeve ring unit (3) includes a low horizontal bar (301) set on the limiting end column (103), a vertical connecting rod (302) set on the end of the low horizontal bar (301), and a high horizontal bar (303) set on the vertical connecting rod (302). The sleeve ring unit (3) further includes two sliding rings (304) sleeved on the high-position crossbar (303), an outwardly convex arc plate (305) disposed on the two sliding rings (304) and used to reduce the height limit of the high-position crossbar (303), and a limiting ring (306) disposed on the high-position crossbar (303) and used to gather the two sliding rings (304). The rotating plate unit (2) further includes an open elastic ring (204) sleeved on the mounting ring (202) and used together with the convex arc plate (305) to support the falling driven plate unit (5). The perforated V-shaped plate unit (4) includes two vertical rods (401) disposed on the rectangular plate (203), and an inclined perforated plate (402) disposed on the upper end surface of the vertical rods (401) for clamping the workpiece (a) and allowing the coating (b) to pass through downward. The driven plate unit (5) includes a central horizontal plate (501) for receiving spilled paint (b) and a mounting hole (502) disposed on the central horizontal plate (501) for inserting the vertical rod (401). The driven plate unit (5) further includes an elastic driven block (503) disposed on the side of the middle horizontal plate (501).

2. The spraying equipment with flexible clamping function according to claim 1, characterized in that: The driven plate unit (5) also includes a fastening nut (504) disposed on the mounting hole (502).

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