Paint spraying device for double-sided paint spraying of plate

Abstract

The utility model relates to the technical field of paint spraying devices, and discloses a paint spraying device for double-sided paint spraying of a plate, opposite synchronous paint spraying is realized by arranging a linear guide rail, a spraying frame, a first motor and other structures, the first motor drives a screw shaft A to rotate, the spraying frame moves from one end of a chute B to the other end, and the moving direction of the spraying frame is opposite to that of the plate. The first motor is driven at the same time, the double-face spraying efficiency is improved, when the spraying head sprays the coating, the coating passes through the electrostatic atomizer, the electrostatic atomizer can add charges to coating particles passing through the electrostatic atomizer, the coating particles can be electrically adsorbed to the surface of a plate, the drifting rate of the coating particles in the spraying process is reduced, and the effects of synchronously spraying paint and reducing the drifting rate are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a paint spraying device technical field especially relates to a kind of paint spraying device for plate double-sided paint spraying. BACKGROUND

[0002] Plate double-sided paint spraying device is a kind of equipment for simultaneously painting the two surfaces of plate, aims at improving the efficiency and uniformity of paint spraying, reducing labor cost and time cost, improves the efficiency and uniformity of paint spraying by design and technical innovation, applicable to a variety of types of plate and different spraying needs.

[0003] In prior art, for the double-sided paint spraying of plate, it needs twice single-sided spraying or complex overturning mechanism, time-consuming and easy to contaminate paint surface, resulting in low efficiency, the position of nozzle is fixed, and different thickness of plate cannot realize self-adaptive change, leading to uneven paint film for different plate spraying. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies of prior art, the utility model provides a kind of paint spraying device for plate double-sided paint spraying, with the advantages of improving efficiency, paint film uniformity, solves the problems raised in the above background technology.

[0005] The utility model provides the following technical scheme: a kind of paint spraying device for plate double-sided paint spraying, including spray tank, the two sides of the spray tank are provided with horizontal slot, the inside of the spray tank is provided with cavity, plate conveying belt is symmetrically installed on the two walls of the cavity, the two walls of the cavity are symmetrically provided with sliding slot A, plate conveying belt is arranged between sliding slot A, the upper and lower walls of the cavity are fixedly installed with vertical column in rectangular array, the inside of plate conveying belt is slidably installed with linear guide rail, the two sides of linear guide rail are slidably connected in the outer ring of vertical column, the inside of linear guide rail is provided with sliding slot B, spraying frame is slidably installed in the inside of sliding slot B, the end of one side of linear guide rail is fixedly installed with first motor, the end of the other side of linear guide rail is fixedly installed with auxiliary frame between, the auxiliary frame includes two end blocks, sliding shaft is fixedly installed between the end block, the two walls of the cavity are fixedly installed with laser range finder at the upper and lower positions of horizontal slot, the inside of the spray tank is symmetrically fixedly installed with second motor.

[0006] Through the above structure setting, by starting first motor to drive spraying frame to slide in the outer ring of screw shaft A, the moving direction and distance of spraying frame are realized, by setting laser range finder, the thickness of plate entering the inside of spray tank is laser measured, the thickness of the present block plate is detected to be inconsistent with the thickness of the upper block, signal is sent to second motor, screw shaft B is driven to rotate by second motor, so that two linear guide rails move in opposite directions, the distance between electrostatic atomizer and plate is adjusted, so that the paint film uniformity of plate surface is ensured during spraying work.

[0007] Preferably, the spray frame comprises slide feet at both ends, which are located inside the sliding groove B and are matched with the shape of the sliding groove B, and side blocks are fixedly installed on one side of the spray frame at both sides, one of the side blocks is internally provided with a threaded groove A, and the other side block is slidably sleeved on the outer ring of the slide shaft, one side of the spray frame is linearly arrayed and fixedly installed with spray heads, and the end of the spray head is fixedly installed with an electrostatic atomizer.

[0008] Through the above structure, the first motor drives the two spray frames to move synchronously, so that the spraying speed of the spray frame is synchronized, and when the spray head sprays paint, the paint passes through the electrostatic atomizer, the electrostatic atomizer emits static electricity, the paint particles are attached with static electricity, and after the charged paint particles are adsorbed to the surface of the plate, the dispersion rate of the paint particles is reduced.

[0009] Preferably, the output shaft end of the first motor is fixedly connected with a screw shaft A, the screw shaft A is located inside the side block provided with a threaded groove, and the threaded groove A of the side block is threadedly matched with the screw shaft A.

[0010] Through the above structure, the first motor is supplied with power in forward and reverse directions, so that the rotating direction of the screw shaft A is changed, and the sliding position of the spray frame is further affected, and the two spray frames are moved synchronously by supplying power to the two first motors at the same time.

[0011] Preferably, the output shaft end of the second motor is fixedly connected with a screw shaft B, the outer ring of the screw shaft B is internally provided with two-way screw channels, the screw shaft B is located at the center position of the sliding groove A, the screw shaft B is threadedly sleeved in the linear guide rail, the second motor and the laser range finder are signal-connected, and the second motor and the laser range finder are electrically connected.

[0012] Through the above structure, the plate entering the spray tank is first subjected to laser ranging between the laser range finders, the thickness of different plates is measured, a signal is sent to the second motor, so that the distance between the electrostatic atomizer and the plate groove is constant, and the uniformity of the paint film is ensured.

[0013] The utility model has the following effects:

[0014] 1. The plate double-sided paint spraying device, through the linear guide rail, the spray frame, the first motor and the like structure realizes the opposite synchronous paint spraying, the first motor drives the screw shaft A to rotate, the spray frame moves from one end of the sliding groove B to the other end, the moving direction of the spray frame is opposite to the moving direction of the plate, through the simultaneous driving of the first motor, the efficiency of the double-sided spraying is improved, when the spray head sprays paint, passes through the electrostatic atomizer, the electrostatic atomizer can make the paint particles passing through its inside additional charge, so that the paint particles can be charged and adsorbed to the surface of the plate, the dispersion rate of the paint particles during spraying is reduced, and the effects of synchronous paint spraying and reducing the dispersion rate are achieved.

[0015] 2、The plate double-sided paint spraying device realizes self-adaptive spacing through the arrangement of the linear guide rail, the laser range finder and the second motor, when the plate is sprayed, the next plate entering the horizontal slot is detected by the laser range finder, when the next plate is thicker, a signal is sent to the second motor, the second motor drives the screw shaft B to rotate, thereby driving the two linear guide rails sleeved with the screw shaft B to move in opposite directions, so that the spacing between the electrostatic atomizer and the plate remains unchanged, the uniformity of the sprayed paint film is maintained, and the effect of adapting to different plates is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Fig. 2 It is a first schematic diagram of the internal structure of the spray tank of the utility model;

[0018] Fig. 3 It is a second schematic diagram of the internal structure of the spray tank of the utility model;

[0019] Fig. 4 It is a third schematic diagram of the internal structure of the spray tank of the utility model.

[0020] In the figure: 1, spray tank; 11, horizontal slot; 12, sliding groove A; 13, stand; 2, plate conveying belt; 3, linear guide rail; 31, sliding groove B; 4, spray frame; 41, sliding foot; 42, side block; 43, spray head; 44, electrostatic atomizer; 5, first motor; 51, screw shaft A; 6, auxiliary frame; 7, laser range finder; 8, second motor; 81, screw shaft B. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] Please refer to Figs. 1-4The utility model provides a kind of paint spraying device for double-sided paint spraying of board, including spray tank 1, transverse notch 11 is opened in the both sides of spray tank 1, cavity is opened in the inside of spray tank 1, plate conveying belt 2 is symmetrically rotationally installed in the both walls of cavity, for conveying board, it is convenient to move in the process of spraying, sliding slot A12 is symmetrically opened in the both walls of cavity, plate conveying belt 2 is located between sliding slot A12 and is arranged, the upper and lower walls of cavity are fixedly installed with vertical column 13 in rectangular array, linear guide rail 3 is slidably installed in the inside of plate conveying belt 2, the both sides of linear guide rail 3 are slidably sleeved in the outer ring of vertical column 13, sliding slot B31 is opened in the inside of linear guide rail 3, spray frame 4 is slidably installed in the inside of sliding slot B31, first motor 5 is fixedly installed in the end of one side linear guide rail 3, auxiliary frame 6 is fixedly installed between the end of other side linear guide rail 3, auxiliary frame 6 includes two end blocks, sliding shaft is fixedly installed between end block, laser range finder 7 is fixedly installed in the both walls of cavity at the upper and lower of transverse notch 11 position, second motor 8 is fixedly installed in the inside of spray tank 1 in symmetry.

[0023] In practical application, the utility model drives spray frame 4 to slide in the outer ring of screw shaft A51 by starting first motor 5, realizes the moving direction and distance of control spray frame 4, when operating, two first motors 5 need be powered simultaneously or be powered off, so that the upper and lower spray frames 4 work synchronously, so that the front and back of board are evenly painted, the thickness of the board entering the inside of spray tank 1 is measured by laser, the thickness of the board is detected, and the signal is sent to second motor 8, the screw shaft B81 is driven to rotate by second motor 8, so that the two linear guide rails 3 move in opposite directions, the distance between electrostatic atomizer 44 and the board is adjusted, and the uniformity of the paint film on the surface of the board is ensured during spraying.

[0024] Please refer to Figs. 1-4 Spray frame 4 includes slide feet 41 at both ends, slide feet 41 are located in the inside of sliding slot B31, slide feet 41 are matched with the shape of sliding slot B31, side blocks 42 are fixedly installed on the both sides of spray frame 4 at one side of slide feet 41, a threaded groove A is formed in the inside of one of side blocks 42, the other side block 42 is slidably sleeved in the outer ring of sliding shaft, spray heads 43 are fixedly installed on one side of spray frame 4 in linear array, electrostatic atomizers 44 are fixedly installed at the ends of spray heads 43.

[0025] Spray frame 4 can slide in the inside of sliding slot B31, first motor 5 drives the upper and lower spray frames 4 to move synchronously, so that the spraying speed of spray frame 4 is synchronized, the coating is sprayed by spray head 43, and electrostatic atomizer 44 is passed through, electrostatic atomizer 44 emits static electricity, coating particles are attached with static electricity, and coating particles are adsorbed to the surface of the board after being charged, so that the drift rate of coating particles is reduced.

[0026] Please refer to Figs. 1-4The output shaft end of the first motor 5 is fixedly connected with a screw shaft A51, the screw shaft A51 is located in the side block 42 with a threaded groove, and the threaded groove A of the side block 42 is threadedly matched with the screw shaft A51.

[0027] The first motor 5 is powered in forward and reverse directions, so as to change the rotating direction of the screw shaft A51, further affect the sliding position of the spray frame 4, and through simultaneously powering the two first motors 5, the upper and lower spray frames 4 are synchronously moved, and the spraying synchronization rate of the upper and lower surfaces is improved when the plate is painted.

[0028] Please refer to Figs. 1-4 The output shaft end of the second motor 8 is fixedly connected with a screw shaft B81, the outer circle of the screw shaft B81 is provided with two screw channels from the middle, when the screw shaft B81 rotates in the forward direction, the upper linear guide rail 3 is driven to move upward, and the lower linear guide rail 3 is driven to move downward, so that the screw shaft B81 only drives the two linear guide rails 3 to move in the opposite direction, the screw shaft B81 is located at the center position of the sliding groove A12, the screw shaft B81 is threadedly sleeved in the linear guide rail 3, the second motor 8 is signal-connected with the laser distance meter 7, and the second motor 8 and the laser distance meter 7 are electrically connected with each other.

[0029] The plate entering the spray box 1 is first subjected to laser ranging between the laser distance meters 7, the thickness of different plates is measured, a signal is sent to the second motor 8, so that the distance between the electrostatic atomizer 44 and the plate groove is constant, the uniformity of the paint film is ensured, when the laser distance meter 7 detects a thick plate, a working signal is sent to the second motor 8, the second motor 8 drives the screw shaft B81 to rotate in the forward direction, drives the upper and lower linear guide rails 3 to symmetrically move outward, and the distance between the electrostatic atomizer 44 and the plate is stable.

[0030] Working principle: when in use, the first motor 5 is powered in a cycle, when the plate enters the inside of the spray tank 1 through the transverse slot 11, it first passes through the laser ranging of the laser range finder 7, the laser range finder 7 sends a signal to the second motor 8, the second motor 8 adjusts the position of the linear guide rail 3 in time, when the plate enters the spraying area, the first motor 5 drives the screw shaft A51 to rotate, the spray frame 4 moves from one end of the sliding groove B31 to the other end, the moving direction of the spray frame 4 is opposite to the moving direction of the plate, by driving the first motor 5 at the same time, the efficiency of double-sided spraying is improved, when the spray head 43 sprays paint, it passes through the electrostatic atomizer 44, the electrostatic atomizer 44 will add electric charge to the paint particles passing through its inside, so that the paint particles can be charged and adsorbed to the surface of the plate, reducing the drift rate of the paint particles during spraying, when this plate is finished spraying, the next plate entering the inside of the transverse slot 11 will be detected again by the laser range finder 7, when the thickness of the next plate is thicker, a signal is sent to the second motor 8, the second motor 8 drives the screw shaft B81 to rotate, thereby driving the two linear guide rails 3 with threaded sleeves outside the screw shaft B81 to move in opposite directions, keeping the distance between the electrostatic atomizer 44 and the plate unchanged, keeping the uniformity of the sprayed paint film, and achieving the effect of adapting to different plates.

Claims

1. A spraying device for double-sided painting of sheet metal, comprising a spray box (1), characterized in that: The spray box (1) has transverse slots (11) on both sides. The spray box (1) has a cavity inside. A sheet material conveyor belt (2) is symmetrically and rotatably installed on the two walls of the cavity. Slide grooves A (12) are symmetrically opened on the two walls of the cavity. The sheet material conveyor belt (2) is located between the slide grooves A (12). The upper and lower walls of the cavity are fixedly installed with columns (13) in a rectangular array. A linear guide rail (3) is slidably installed inside the sheet material conveyor belt (2). The two sides of the linear guide rail (3) are slidably sleeved on the outer ring of the column (13). (3) has a sliding groove B (31) inside, and a spray frame (4) is slidably installed inside the sliding groove B (31). A first motor (5) is fixedly installed on one side of the end of the linear guide rail (3), and an auxiliary frame (6) is fixedly installed between the ends of the linear guide rail (3) on the other side. The auxiliary frame (6) includes two end blocks, and a sliding shaft is fixedly installed between the end blocks. A laser rangefinder (7) is fixedly installed on the two walls of the cavity above and below the transverse slot (11). A second motor (8) is symmetrically fixedly installed inside the spray box (1).

2. The spraying device for double-sided spraying of sheet metal according to claim 1, characterized in that: The spray frame (4) includes sliding feet (41) at both ends. The sliding feet (41) are located inside the slide groove B (31). The shape of the sliding feet (41) is adapted to the slide groove B (31). Side blocks (42) are fixedly installed on both sides of the spray frame (4) on one side of the sliding feet (41). One of the side blocks (42) has a threaded groove A inside. The other side block (42) is slidably sleeved on the outer ring of the slide shaft. A nozzle (43) is fixedly installed on one side of the spray frame (4) in a linear array. An electrostatic atomizer (44) is fixedly installed at the end of the nozzle (43).

3. The painting device for double-sided painting of sheet metal according to claim 2, characterized in that: The output shaft end of the first motor (5) is fixedly connected to a screw shaft A (51). The screw shaft A (51) is located inside a side block (42) with a threaded groove. The threaded groove A of the side block (42) and the screw shaft A (51) are threadedly matched.

4. The painting device for double-sided painting of sheet metal according to claim 3, characterized in that: The output shaft end of the second motor (8) is fixedly connected to a screw shaft B (81). The outer ring of the screw shaft B (81) has a two-way screw channel from the middle. The screw shaft B (81) is located at the center of the slide groove A (12). The screw shaft B (81) is threaded into the inside of the linear guide rail (3). There is a signal connection between the second motor (8) and the laser rangefinder (7). The second motor (8) and the laser rangefinder (7) are electrically connected to each other.

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