CN213000743U

CN213000743U - Spraying reciprocating equipment

Info

Publication number: CN213000743U
Application number: CN202021449977.9U
Authority: CN
Inventors: 王国华
Original assignee: Jiaxing Ruxu Machinery Co ltd
Current assignee: Jiaxing Ruxu Machinery Co ltd
Priority date: 2020-07-21
Filing date: 2020-07-21
Publication date: 2021-04-20
Anticipated expiration: 2030-07-21

Abstract

The utility model relates to a spraying reciprocating motion equipment relates to the field of spraying equipment, and it is including the conveyer belt that is used for transmitting the work piece, follows conveyer belt length direction interval is provided with a plurality of supports, each the equal sliding connection sliding block in both sides of support, sliding block slide from top to bottom in vertical direction, two be connected with automatic spray gun between the sliding block, automatic spray gun's shower nozzle is towards the conveyer belt, leg joint has the synchronization regulation subassembly that is used for driving the sliding block synchronous rising or descends. This application has the effect of being convenient for adjust simultaneously distance between a plurality of automatic spray guns and the work piece.

Description

Spraying reciprocating equipment

Technical Field

The application relates to the field of spraying equipment, in particular to spraying reciprocating equipment.

Background

The spraying machine is special coating equipment adopting a spraying technology, and can perform stable and continuous reciprocating motion on the surface to be sprayed to realize automatic and uniform spraying. In the process of paint conveying, pressurized paint is conveyed into a spray gun of a coating machine through a high-pressure hose, the paint is instantly atomized by the spray gun and then is released to the surface of an object to be coated, a plurality of workpieces to be coated are placed on a conveying belt by the conventional coating equipment, the workpieces are respectively coated by a plurality of groups of coating machines, and the workpieces with smooth surfaces are required to be coated.

The chinese patent of publication No. CN208131333U discloses an automatic reciprocating type flush coater, which comprises a housin, bottom transmission in the casing is connected with the spraying conveyer belt, the top of spraying conveyer belt is equipped with movable mounting at the inside spraying device main part of casing, fixed mounting has lift servo motor on the top inner wall of casing, lift servo motor's output fixed mounting has the crossbeam, and the both ends of crossbeam respectively with the both sides inner wall of casing along vertical direction sliding connection, the equal fixed mounting in bottom both sides of crossbeam has the support, is equipped with the slide rail of fixed mounting in the crossbeam bottom between two supports, slidable mounting has first sliding block on the slide rail, the bottom fixed mounting of first sliding block has the sliding seat.

With respect to the related art in the above, the inventors consider that: the distance between one spraying device main body and the workpiece can be adjusted at a time, and the plurality of spraying device main bodies need to be adjusted respectively, so that the operation is troublesome.

SUMMERY OF THE UTILITY MODEL

In order to facilitate the simultaneous adjustment of a plurality of automatic spray guns and the distance between the work piece, the application provides a spraying reciprocating motion equipment.

The application provides a spraying toward reciprocating motion equipment adopts following technical scheme:

a spraying reciprocating motion equipment which is characterized in that: including a plurality of supports that set up along conveyer belt length direction interval, each the equal sliding connection sliding block in both sides of support, sliding block slide from top to bottom in vertical direction, two be connected with automatic spray gun between the sliding block, automatic spray gun's shower nozzle is towards the conveyer belt, leg joint has and is used for driving the synchronous adjusting part that rises of sliding block or descend in step.

Through adopting above-mentioned technical scheme, the work piece is transmitted on the conveyer belt, and automatic spray gun carries out the spraying to the work piece, and the sliding block can slide from top to bottom at the support lateral wall, is convenient for adjust the distance between the work piece of automatic spray gun and different thickness, and the distance between a plurality of automatic spray guns of synchronous adjustment subassembly and the work piece.

Preferably, the synchronous adjusting component includes fixed connection in the montant of sliding block upper surface, is located the conveyer belt and is connected with the horizontal pole with a plurality of montant upper ends of one side, is located to be connected with the support frame between the horizontal pole of conveyer belt both sides, the top fixedly connected with mounting panel of a plurality of supports, the mounting panel is highly less than in vertical side the support frame, fixed surface is connected with the cylinder that is used for driving the support frame to reciprocate on the mounting panel, the output shaft fixed connection of cylinder is in the bottom surface of support frame.

Through adopting above-mentioned technical scheme, place a plurality of work pieces in the below of automatic spray gun, when the distance between automatic spray gun and the work piece does not satisfy the spraying condition, make montant upwards or move down through the output shaft of adjusting cylinder and drive the sliding block and rise or descend, and then adjust the distance between automatic spray gun and the work piece.

Preferably, the support includes that two are vertical boards, the horizontal plate of fixed connection in two vertical board tops of vertical setting, two vertical board sets up respectively in the both sides of conveyer belt, vertical board has been seted up and has been supplied the gliding guide way of sliding block, vertical decurrent constant head tank has been seted up to the both sides wall of guide way, the constant head tank communicates with the guide way, the both sides integrated into one piece of sliding block has the location arch of sliding connection in the constant head tank.

Through adopting above-mentioned technical scheme, the sliding block can be in the upper and lower slip of the guide way of seting up on vertical board, the automatic spray gun of being convenient for and the distance between the work piece of different thickness.

Preferably, a sliding assembly for enabling the automatic spray gun to reciprocate in the direction perpendicular to the conveying direction of the conveying belt is connected between the two sliding blocks positioned on the same support.

By adopting the technical scheme, the automatic spray gun can reciprocate in the direction vertical to the conveying direction of the workpiece, so that different parts of the workpiece can be sprayed conveniently.

Preferably, the sliding assembly comprises a lead screw rotatably connected with the two sliding blocks respectively, the lead screw is arranged above the workpiece, a mounting seat is in threaded connection with the side wall of the lead screw, the automatic spray gun is fixedly connected to the bottom of the mounting seat, a servo motor for driving the lead screw to rotate is fixedly connected with one end of the lead screw coaxially, and the lead screw is connected with a limiting component facilitating the mounting seat to reciprocate axially along the lead screw.

Through adopting above-mentioned technical scheme, when servo motor rotated, drive the lead screw and rotate, the mount pad because the limiting displacement of gag lever post, along lead screw axial displacement, make the mount pad along lead screw axial reciprocating motion through control servo motor, and then make the automatic spray gun of fixed connection in the mount pad bottom along lead screw axial reciprocating motion to set up in the reciprocal spraying of work piece of its below.

Preferably, the limiting part comprises two limiting rods, two ends of each limiting rod are respectively fixedly connected with two sliding blocks on the same support, the two limiting rods are parallel to the screw rod, limiting grooves are formed in one sides, close to the screw rod, of the two limiting rods, and a limiting bulge is formed on each of two side walls of the mounting seat in an integrated mode; the limiting protrusion is connected to the limiting groove in a sliding mode.

By adopting the technical scheme, the screw rod drives the mounting seat to move together when rotating, the limiting component limits the mounting seat to rotate and moves along the axial direction of the screw rod, and the automatic spray gun can conveniently move along the axial direction of the screw rod to spray different parts of a workpiece.

Preferably, one of them lateral wall of vertical board is fixedly connected with red light, green light still, and red light, green light are used for the suggestion automatic spray gun and the distance relation between the work piece, and the distance discrimination mechanism that switches on according to automatic spray gun and work piece control drive red light, green light is connected to the bottom of one of them mount pad, distance discrimination mechanism includes:

the distance sensor is fixedly connected to the bottom of the mounting seat and used for detecting the distance between the automatic spray gun and the workpiece and outputting a distance detection signal;

the short-distance adjusting module is preset with a short-distance preset value, the input end of the short-distance adjusting module is connected with the output end of the distance sensor, receives the distance detection signal, compares the distance detection signal with the short-distance preset value and outputs a first control signal for controlling the red light and the green light to be turned on and off;

and the long-distance adjusting module is preset with a long-distance preset value, the input end of the long-distance adjusting module is connected with the output end of the distance sensor, receives the distance detection signal, compares the distance detection signal with the long-distance preset value and outputs a second control signal for controlling the red light and the green light to be turned on and off.

By adopting the technical scheme, when the distance between the distance sensor and the automatic spray gun and the workpiece is smaller than the short-distance preset value, the red light is on; when the distance sensor detects that the distance between the automatic spray gun and the workpiece is greater than the long-distance preset value, the red lamp and the green lamp are not turned on, and when the distance sensor detects that the distance between the automatic spray gun and the workpiece is greater than the short-distance preset value and less than the long-distance preset value, the green lamp is turned on to prompt workers.

Preferably, the short distance adjusting module comprises a first comparing unit connected to the output end of the distance sensor, the first comparing unit comprises a first reference circuit used for setting a short distance preset value, the output end of the first comparing unit is connected with a first control unit, and the first control unit outputs a first control signal for controlling the red light and the green light to be turned on and off.

By adopting the technical scheme, the short distance adjusting module receives the distance detection signal and compares the distance detection signal with the short distance preset value to control the opening and closing of the red light and the green light, and reminds a worker to adjust the distance between the automatic spray gun and the workpiece.

Preferably, the long-distance adjusting module comprises a second comparing unit connected to the output end of the distance sensor, the second comparing unit comprises a second reference circuit used for setting a short-distance preset value, the output end of the second comparing unit is connected with a second control unit, and the second control unit outputs a second control signal used for controlling the red light and the green light to be turned on and off.

By adopting the technical scheme, the long-distance adjusting module receives the distance detection signal and compares the distance detection signal with the long-distance preset value to control the opening and closing of the red light and the green light, and reminds a worker to adjust the distance between the automatic spray gun and the workpiece.

In summary, the present application includes at least one of the following beneficial technical effects:

the synchronous adjusting assembly can adjust the distances between the automatic spray guns and the workpiece only by adjusting the upward or downward movement of the output shaft of the air cylinder, so that the simplicity and convenience of operation are improved;

through the distance discrimination mechanism, whether the distance between the automatic spray gun and the workpiece is convenient for spraying proper thickness can be discriminated.

Drawings

Fig. 1 is a schematic structural diagram of a spraying reciprocating device according to an embodiment of the present application.

Fig. 2 is a schematic structural diagram of a slide assembly mainly used for showing the painting reciprocating device according to an embodiment of the present application.

Fig. 3 is a schematic circuit structure diagram of a distance determination mechanism in a reciprocating spraying device according to an embodiment of the present application.

Description of reference numerals: 1. a support; 11. a vertical plate; 12. a horizontal plate; 111. a guide groove; 112. positioning a groove; 113. positioning the projection; 2. a conveyor belt; 3. a slider; 4. a sliding assembly; 41. a screw rod; 42. a mounting seat; 43. a limiting component; 431. a limiting rod; 432. a limiting groove; 433. a limiting bulge; 434. a servo motor; 5. an automatic spray gun; 6. a synchronization adjustment assembly; 61. a vertical rod; 62. a cross bar; 63. a support frame; 64. a cylinder; 65. mounting a plate; 7. a red light; 8. a green light; 9. a distance determination mechanism; 91. a distance sensor; 92. a short-distance adjusting module; 93. a long distance adjusting module; 921. a first comparing unit; 922. a first control unit; 931. a second comparing unit; 932. a second control unit.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses spraying reciprocating equipment. Referring to fig. 1, a spraying reciprocating motion equipment includes a plurality of supports 1 that set up along 2 length direction intervals of conveyer belt, and the equal sliding connection in both sides of each support 1 has sliding block 3, and sliding block 3 slides from top to bottom in vertical direction, is connected with automatic spray gun 5 between two sliding blocks 3 of same support 1, and automatic spray gun 5's shower nozzle is towards conveyer belt 2, and a plurality of supports 1 are connected with and are used for driving synchronous regulation subassembly 6 that rises or descend of sliding block 3.

Referring to fig. 2, support 1 includes two vertical boards 11 that are vertical setting, fixed connection is in the horizontal plate 12 at two vertical board 11 tops, two vertical boards 11 set up respectively in the both sides of conveyer belt 2, each vertical board 11 has seted up the guide way 111 that one end link up from the top is vertical downwards, 3 sliding connection of sliding block in guide way 111, vertical decurrent constant head tank 112 has been seted up to the both sides wall of guide way 111, constant head tank 112 is linked together with guide way 111, the both sides wall of sliding block 3 integrated into one piece respectively has two protruding 113 in location, two protruding 113 in location difference sliding connection in constant head tank 112, be connected with between two sliding blocks 3 that are located same support 1 and supply automatic spray gun 5 reciprocating motion's sliding component 4 on perpendicular to conveyer belt 2 direction of.

Referring to fig. 2, the sliding assembly 4 includes a screw rod 41 disposed between two sliding blocks 3, two ends of the screw rod 41 are rotatably connected to the two sliding blocks 3, the screw rod 41 is disposed above the workpiece, the screw rod 41 is in threaded connection with a mounting seat 42, the automatic spray gun 5 is fixedly connected to the bottom of the mounting seat 42, a nozzle of the automatic spray gun 5 faces the conveyor belt 2, a servo motor 434 for driving the screw rod 41 to rotate is connected to the outer side of one of the sliding blocks 3, an output shaft of the servo motor 434 is coaxially and fixedly connected to the screw rod 41, and the mounting seat 42 is connected to a limiting component 43 for facilitating axial reciprocating movement of the mounting.

Referring to fig. 2, the limiting part 43 includes two limiting rods 431 disposed between the two sliding blocks 3, two ends of the limiting rods 431 are respectively and fixedly connected to the two sliding blocks 3, the limiting rods 431 are parallel to the screw rod 41, limiting grooves 432 are respectively formed on one sides of the two limiting rods 431 close to the screw rod 41, two side walls of the mounting seat 42 are respectively and integrally formed with one limiting protrusion 433, and the two limiting protrusions 433 are respectively and slidably connected to the two limiting grooves 432. When the servo motor 434 rotates, the screw rod 41 is driven to rotate, the mounting seat 42 axially moves along the screw rod 41 due to the limiting effect of the limiting rod 431, the mounting seat 42 axially reciprocates along the screw rod 41 by controlling the servo motor 434, and then the automatic spray gun 5 fixedly connected to the bottom of the mounting seat 42 axially reciprocates along the screw rod 41 to spray a workpiece arranged below the mounting seat.

Referring to fig. 1, synchronous adjusting part 6 includes the montant 61 of fixed connection in sliding block 3 upper surface, it is located conveyer belt 2 with a plurality of montant 61 upper end fixedly connected with horizontal poles 62 of one side, be located and be connected with support frame 63 between two horizontal poles 62 of conveyer belt 2 both sides, the top fixedly connected with mounting panel 65 of a plurality of horizontal plates 12, mounting panel 65 is highly less than support frame 63 in vertical side, montant 61 wears to establish horizontal plate 12 and mounting panel 65 and with horizontal plate 12, mounting panel 65 sliding connection, fixed surface is connected with the cylinder 64 that is used for driving support frame 63 and reciprocates on the mounting panel 65, the output shaft fixed connection of cylinder 64 is in the bottom surface of support frame 63, the power source of cylinder 64.

Referring to fig. 1 and 2, after the type of the workpiece to be sprayed is changed, when the distance between the automatic spray gun 5 and the workpiece needs to be readjusted, the stretching of the output shaft of the air cylinder 64 is manually controlled by a worker to adjust, in order to facilitate the worker to adjust the height of the automatic spray gun 5, a red light 7 and a green light 8 are fixedly connected to the side wall of one of the vertical plates 11 at the discharge end of the conveyor belt 2, and the red light 7 and the green light 8 are used for prompting the distance relationship between the automatic spray gun 5 and the workpiece of the worker. In the application, when the red light 7 is on, the distance between the automatic spray gun 5 and the workpiece is too small, so that a worker is prompted to increase the distance between the automatic spray gun 5 and the workpiece by controlling the extension of the output shaft of the air cylinder 64; when the green light 8 is turned on, the distance between the automatic spray gun 5 and the workpiece is within a proper range value, and at the moment, the staff is prompted to stop adjusting without adjusting the distance between the automatic spray gun 5 and the workpiece or the staff who controls the extension and contraction of the output shaft of the air cylinder 64; when neither the red light 7 nor the green light 8 is on, the excessive distance between the automatic spray gun 5 and the workpiece is marked to prompt the staff to reduce the distance between the automatic spray gun 5 and the workpiece by controlling the contraction of the output shaft of the air cylinder 64.

Referring to fig. 2 and 3, in order to detect the distance between the automatic spray gun 5 and the workpiece, a distance determination mechanism 9 for controlling the conduction of the red light 7 and the green light 8 according to the distance between the automatic spray gun 5 and the workpiece is connected to the side wall of the automatic spray gun 5 at the discharge end of the conveyor belt 2.

Referring to fig. 3, the distance determination mechanism 9 includes a distance sensor 91, a short distance adjustment module 92, and a long distance adjustment module 93, wherein the distance sensor 91 is fixedly disposed on a side wall of the automatic spray gun 5, and is configured to detect a distance between the automatic spray gun 5 and a workpiece and output a distance detection signal; a short-distance preset value is preset in the short-distance adjusting module 92, the input end of the short-distance adjusting module is connected with the output end of the distance sensor 91, the short-distance adjusting module receives the distance detection signal, compares the distance detection signal output by the distance sensor 91 with the short-distance preset value, and outputs a first control signal for controlling the red light 7 and the green light 8 to be turned on and off; the long-distance adjusting module 93 is preset with a long-distance preset value, an input end of the long-distance adjusting module is connected with an output end of the distance sensor 91, receives the distance detection signal, compares the distance detection signal output by the distance sensor 91 with the long-distance preset value, and outputs a second control signal for controlling the red light 7 and the green light 8 to be turned on and off, wherein the long-distance preset value is slightly larger than the short-distance preset value.

Referring to fig. 3, the short-distance adjusting module 92 includes a first comparing unit 921 connected to an output end of the distance sensor 91, an output end of the first comparing unit 921 is connected to a first control unit 922, and the first control unit 922 outputs a first control signal for controlling the red light 7 and the green light 8 to be turned on and off. The first comparing unit 921 includes a first reference circuit, an output end of the first reference circuit is connected with a first comparator a, the first reference circuit includes a first resistor R1 and a second resistor R2, a positive phase input end of the first comparator a is respectively connected with the first resistor R1 and the second resistor R2, the other end of the first resistor R1 is connected with the power source VCC, the other end of the second resistor R2 is grounded, and an inverse phase input end of the first comparator a is connected with an output end of the distance sensor 91; when the distance sensor 91 detects that the distance between the automatic spray gun 5 and the workpiece is smaller than the short-distance preset value, the first comparator A outputs a high-level signal; when the distance sensor 91 detects that the distance between the automatic spray gun 5 and the workpiece is larger than the short distance preset value, the first comparator A outputs a low level signal.

Referring to fig. 3, the first control unit 922 includes a first transistor Q1, a first relay KM1, and a first freewheeling diode D1, the first transistor Q1 is an NPN-type transistor, the first relay KM1 has a coil, a normally open contact KM1-1 and a normally closed contact KM1-2, the normally open contact KM1-1 and the normally closed contact KM1-2 are configured to receive and respond to a first control signal, the coil of the first relay KM1 is connected in series between the collector of the first transistor Q1 and a power source VCC, the normally open contact KM1-1 of the first relay KM1 is connected in series in a power supply loop of the red light 7, the normally closed contact KM1-2 of the first relay KM1 is connected in series in a power supply loop of the green light 8, the base of the first transistor Q1 is connected to the output terminal of the first comparator a, the emitter of the first transistor Q1 is grounded, the first freewheeling diode D1 is connected between the collector of the first transistor Q1 and the coil of the first relay KM1, the cathode of the first freewheeling diode D1 is connected to the power supply VCC; when the first comparator A outputs a high-level signal, the first triode Q1 is conducted, and the coil of the first relay KM1 is electrified, so that the normally open contact KM1-1 is closed, and the normally closed contact KM1-2 is opened; when the first comparator A outputs a low-level signal, the first triode Q1 is cut off, the first relay KM1 is not electrified, and the normally open contact KM1-1 is kept open and the normally closed contact KM1-2 is kept closed.

Referring to fig. 3, the long distance adjustment module 93 includes a second comparison unit 931 connected to the output end of the distance sensor 91, the output end of the second comparison unit 931 is connected to a second control unit 932, the second control unit 932 is used for controlling the on and off of the green light 8 and the red light 7, the second comparison unit 931 includes a second comparator B, a third resistor R3 and a fourth resistor R4, the positive phase input end of the second comparator B is connected to the output end of the distance sensor 91, the negative phase input end of the second comparator B is respectively connected to the third resistor R3 and the fourth resistor R4, the other end of the third resistor R3 is connected to the power source VCC, and the other end of the fourth resistor R4 is grounded; when the distance sensor 91 detects that the distance between the automatic spray gun 5 and the workpiece is smaller than the long-distance preset value, the second comparator B outputs a low-level signal; when the distance sensor 91 detects that the distance between the automatic spray gun 5 and the workpiece is larger than the long-distance preset value, the first comparator A outputs a low level signal.

The second control unit 932 includes a second triode Q2, a second relay KM2, and a second freewheeling diode D2, the second triode Q2 is an NPN-type triode, the second control unit 923 outputs a second control signal for controlling the red light 7 and the green light 8 to turn on and off, the second relay KM2 has a coil, a first normally closed switch KM2-1 and a second normally closed switch KM2-2, the first normally closed switch KM2-1 and the second normally closed switch KM2-2 are used for receiving the second control signal and responding, the coil of the second relay KM2 is connected in series between the collector of the second triode Q2 and the power source VCC, the first normally closed switch KM2-1 of the second relay KM2 is connected in series in the power supply loop of the red light 7, the second switch KM2-2 of the second relay KM2 is connected in series in the power supply loop of the green light 8, the base of the second triode Q2 is connected to the output terminal of the second comparator B, an emitter of the second triode Q2 is grounded, an anode of a second fly-wheel diode D2 is connected between a collector of the second triode Q2 and a coil of the second relay KM2, and a cathode of the second fly-wheel diode D2 is connected with a power supply VCC; when the second comparator B outputs a low-level signal, the second triode Q2 is cut off, the second relay KM2 is not electrified, and the first normally-closed switches KM2-1 and KM2-2 are kept closed; when the second comparator B outputs a high-level signal, the second triode Q2 is conducted, the second relay KM2 is electrified, and the first normally-closed switches KM2-1 and KM2-2 are opened.

The implementation principle of the spraying reciprocating equipment in the embodiment of the application is as follows: before spraying, a plurality of workpieces are placed on the conveyor belt 2 and located below the automatic spray guns 5, when the distance sensors 91 detect that the distance between the automatic spray guns 5 and the workpieces is smaller than a short-distance preset value, the first comparator A outputs a high-level signal, the first triode Q1 is conducted at the moment, the coil KM1 of the first relay is electrically controlled to be closed through the normally-open contact KM1-1, the first normally-closed switch KM2-1 is kept closed, the red light 7 is on at the moment, a worker controls the output shaft of the air cylinder 64 to extend, the air cylinder 64 drives each vertical rod 61 to move upwards through the cross rod 62, and then the distance between each automatic spray gun 5 and the workpiece is synchronously increased; when the distance sensor 91 detects that the distance between the automatic spray gun 5 and the workpiece is greater than a long-distance preset value, the second comparator B outputs a high-level signal, the second triode Q2 is conducted, the coil of the second relay KM2 is electrified to control the first normally-closed switches KM2-1 and KM2-2 to be disconnected, the red lamp 7 and the green lamp 8 are not lighted, the worker controls the output shaft of the cylinder 64 to contract, and the cylinder 64 drives each vertical rod 61 to move downwards, so that the distance between each automatic spray gun 5 and the workpiece is synchronously reduced; when the distance sensor 91 detects that the distance between the automatic spray gun 5 and the workpiece is larger than a short-distance preset value and smaller than a long-distance preset value, the first comparator A outputs a low-level signal, the second comparator B outputs a low-level signal, the first triode Q1 is cut off at the moment, the coil of the first relay KM1 is not electrified, so that the normally open contact KM1-1 of the first relay KM1 is kept open, the normally closed contact KM1-2 of the first relay is kept closed, the second triode Q2 is cut off, the coil of the second relay KM2 is not electrified, so that the normally closed switch KM2-1 and the normally closed switch KM2-2 of the second relay are both kept closed, and the green lamp 8 is bright at the moment, so that the distance between the automatic spray gun 5 and the workpiece is within a proper range value, and the thickness of the coating of the automatic spray gun 5 on the workpiece is proper.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A spraying reciprocating motion equipment which is characterized in that: including a plurality of supports (1) that set up along conveyer belt (2) length direction interval, each the equal sliding connection sliding block (3) in both sides of support (1), sliding block (3) slide from top to bottom in vertical direction, two be connected with automatic spray gun (5) between sliding block (3), the shower nozzle of automatic spray gun (5) is towards conveyer belt (2), support (1) are connected with and are used for driving synchronous rising of sliding block (3) or synchronous adjusting part (6) that descend.

2. A spray coating shuttle apparatus as claimed in claim 1 wherein: synchronous adjusting part (6) include montant (61) of fixed connection in sliding block (3) upper surface, are located conveyer belt (2) and are connected with horizontal pole (62) with a plurality of montant (61) upper ends of one side, are located and are connected with support frame (63) between horizontal pole (62) of conveyer belt (2) both sides, the top fixedly connected with mounting panel (65) of a plurality of supports (1), mounting panel (65) highly be less than in vertical side support frame (63), fixed surface is connected with cylinder (64) that are used for driving support frame (63) and reciprocate on mounting panel (65), the output shaft fixed connection of cylinder (64) is in the bottom surface of support frame (63).

3. A spray coating shuttle apparatus as claimed in claim 2 wherein: support (1) includes two vertical boards (11), the horizontal plate (12) of fixed connection in two vertical board (11) tops that are vertical setting, two vertical board (11) set up respectively in the both sides of conveyer belt (2), vertical board (11) are seted up and are supplied gliding guide way (111) of sliding block (3), vertical decurrent constant head tank (112) have been seted up to the both sides wall of guide way (111), constant head tank (112) are linked together with guide way (111), the both sides integrated into one piece of sliding block (3) has the location arch (113) of sliding connection in constant head tank (112).

4. A spray coating shuttle apparatus as claimed in claim 3 wherein: and a sliding assembly (4) for enabling the automatic spray gun (5) to reciprocate in the direction vertical to the conveying direction of the conveying belt (2) is connected between the two sliding blocks (3) positioned on the same support (1).

5. A spray coating shuttle apparatus as claimed in claim 4 wherein: slide subassembly (4) are including rotating lead screw (41) of being connected with two sliding blocks (3) respectively, lead screw (41) set up in the top of work piece, the lateral wall threaded connection of lead screw (41) has mount pad (42), automatic spray gun (5) fixed connection is in the bottom of mount pad (42), the coaxial fixedly connected with of one end of lead screw (41) drives lead screw (41) pivoted servo motor (434), lead screw (41) are connected with the stop part (43) that are convenient for mount pad (42) along lead screw (41) axial reciprocating motion.

6. A spray coating shuttle apparatus as claimed in claim 5 wherein: the limiting part (43) comprises two limiting rods (431) of which two ends are respectively fixedly connected with the two sliding blocks (3) on the same support (1), the two limiting rods (431) are parallel to the screw rod (41), limiting grooves (432) are respectively formed in one sides, close to the screw rod (41), of the two limiting rods (431), and limiting protrusions (433) are respectively integrally formed on two side walls of the mounting seat (42); the limiting protrusion (433) is connected to the limiting groove (432) in a sliding mode.

7. A spray coating shuttle apparatus as claimed in claim 6 wherein: wherein one the lateral wall of vertical board (11) is fixedly connected with red light (7), green lamp (8) still, and red light (7), green lamp (8) are used for indicateing the distance relation between automatic spray gun (5) and the work piece, and the distance that switches on according to automatic spray gun (5) and work piece control drive red light (7), green lamp (8) is connected to the bottom of one of them mount pad (42) differentiates mechanism (9), distance differentiates mechanism (9) and includes:

the distance sensor (91) is fixedly connected to the bottom of the mounting seat (42) and used for detecting the distance between the automatic spray gun (5) and a workpiece and outputting a distance detection signal;

the short-distance adjusting module (92) is preset with a short-distance preset value, the input end of the short-distance adjusting module is connected with the output end of the distance sensor (91), receives the distance detection signal, compares the distance detection signal with the short-distance preset value and outputs a first control signal for controlling the red light (7) and the green light (8) to be turned on and off;

and the long-distance adjusting module (93) is preset with a long-distance preset value, the input end of the long-distance adjusting module is connected with the output end of the distance sensor (91), receives the distance detection signal, compares the distance detection signal with the long-distance preset value, and outputs a second control signal for controlling the red light (7) and the green light (8) to be turned on and off.

8. A spray coating shuttle apparatus as claimed in claim 7 wherein: the short distance adjusting module (92) comprises a first comparison unit (921) connected to the output end of the distance sensor (91), the first comparison unit (921) comprises a first reference circuit used for setting a short distance preset value, the output end of the first comparison unit (921) is connected with a first control unit (922), and the first control unit (922) outputs a first control signal for controlling the opening and closing of the red light (7) and the green light (8).

9. A spray coating shuttle apparatus as claimed in claim 8 wherein: the long-distance adjusting module (93) comprises a second comparison unit (931) connected to the output end of the distance sensor (91), the second comparison unit (931) comprises a second reference circuit used for setting a short-distance preset value, the output end of the second comparison unit (931) is connected with a second control unit (932), and the second control unit (932) outputs a second control signal used for controlling the red light (7) and the green light (8) to be turned on and off.