Automatic dust removal device for keyboard paint spraying line

Abstract

The invention relates to the field of keyboard processing equipment, in particular to a keyboard paint spraying line automatic dust removal device which comprises a feeding device used for transmission and feeding, and a keyboard discharging bin body used for guiding materials is arranged at the position, close to the front portion, of the upper end face of the feeding device. When a keyboard workpiece is dedusted, a stepping motor can circularly drive a circulating guide groove and a supporting rotating shaft to rotate through a synchronous belt and a transmission synchronous wheel, so that the circulating guide groove can circularly drive a cleaning adsorption device to clean the outside of the keyboard workpiece for multiple times in unit cleaning time; the cleaning efficiency of keyboard workpieces is effectively improved, meanwhile, a transmission gear can drive an anti-static cotton brush to rotate at a high speed during cyclic displacement through meshing with a transmission rack, then the cleaning efficiency of the anti-static cotton brush on the keyboard workpieces is further improved, and meanwhile the utilization efficiency of equipment on power is also effectively improved. And therefore, the subsequent keyboard production efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of keyboard processing equipment, and in particular to an automatic dust removal device for a keyboard painting line. Background Art

[0002] The automatic dust removal device of the keyboard spray painting line can perform fast and stable dust removal operations on the produced keyboards. When the keyboard is being produced, it is necessary to perform a jet operation. Before the jet operation, the outside of the keyboard workpiece needs to be dusted and destaticized, thereby improving the efficiency and stability of subsequent jetting.

[0003] As disclosed in the invention patent with the publication number of CN105327899A, an automatic electrostatic dust removal device on a computer keyboard production line is provided, wherein a master and a slave sprocket shaft are provided horizontally at the two short sides of the top surface of the support seat; a master sprocket is fixedly sleeved on each end of the master sprocket shaft, and two slave sprockets are fixedly sleeved on the slave sprocket shaft corresponding to the master sprocket, and each corresponding master and slave sprocket is connected by a chain, and the two ends of the connecting rod are respectively fixed to the same chain link of the corresponding side chain; a group of electrostatic release tubes are arranged side by side just above the connecting rod, and these electrostatic release tubes are located in the same horizontal plane, and the two ends of all the electrostatic release tubes are respectively fixed to the n-shaped frames at the corresponding ends; each electrostatic release tube has an electrostatic release hole, and an electrostatic branch rubber tube is inserted into the electrostatic release tube, and the electrostatic branch rubber tubes in all the electrostatic release tubes are connected to the electrostatic main rubber tube, and the electrostatic main rubber tube is connected to the electrostatic generator. The present invention can conveniently and automatically remove dust from computer keyboards on the assembly line, and the dust removal effect is good.

[0004] Although the above-mentioned equipment can perform anti-static operations on the outside of the keyboard, its cleanliness and efficiency in dust removal on the keyboard are insufficient. At the same time, the above-mentioned equipment is not convenient for simultaneous dust removal and anti-static operations on batches of keyboards, thereby reducing the production efficiency of subsequent keyboards. Therefore, an automatic dust removal device for a keyboard painting line is needed to solve the above-mentioned problems. Summary of the invention

[0005] The purpose of the present invention is to provide an automatic dust removal device for a keyboard painting line to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automatic dust removal device for a keyboard painting line, comprising a feeding device for transmission and feeding, a keyboard unloading bin body for guiding materials is arranged near the front of the upper end surface of the feeding device, and a reading groove is symmetrically opened on the inner end surface of the keyboard unloading bin body, and a support guide seat is fixedly arranged near the middle of the upper end surface of the feeding device.

[0007] A static electricity removal device, wherein the static electricity removal device is provided with two groups, and the two groups of static electricity removal devices are respectively arranged at the front and rear of the support guide seat;

[0008] An air guide cylinder, wherein the air guide cylinder is fixedly arranged at the center of the upper end surface of the support guide seat, and two sets of guide grooves are opened on the upper end surface of the support guide seat;

[0009] A dust removal device is slidably clamped on the inner end surface of the support guide seat, and the dust removal device is fixedly connected to the bottom of the air guide cylinder.

[0010] Preferably, the loading device includes a fixed base, the inner end surface of the fixed base is rotatably clamped with two groups of transmission guide shafts, and the outer end surface of the transmission guide shaft is fixedly provided with a conveying synchronous wheel, the two groups of conveying synchronous wheels are meshed and connected by a synchronous conveyor belt, the outer end surface of the synchronous conveyor belt is equidistantly provided with two groups of keyboard limit grooves, and a servo motor is provided on the side end surface of the fixed base opposite to the transmission guide shaft.

[0011] Preferably, the dust removal device includes a limit card seat, the inner end surface of the limit card seat is rotatably connected with two groups of supporting shafts, and the outer end surfaces of the two groups of supporting shafts are provided with circulation guide grooves, the ends of the two groups of supporting shafts are provided with transmission synchronous wheels, and the two groups of transmission synchronous wheels are meshed and connected by synchronous belts, the inner end surface of the limit card seat is provided with two groups of transmission racks for transmission, the inner end surface of the limit card seat is slidably connected with two groups of cleaning adsorption devices through the circulation guide groove, and the rear end surface of the limit card seat is provided with a stepping motor opposite to one of the groups of supporting shafts.

[0012] Preferably, the cleaning adsorption device includes an adsorption guide seat, a positioning sliding shaft is arranged on the top of the inner end surface of the adsorption guide seat, and an air intake duct is arranged on the upper end surface of the adsorption guide seat, an adsorption head is fixedly arranged at the center of the lower end surface of the adsorption guide seat, and a transmission gear is rotatably clamped on the outer end surface of the adsorption head, and an anti-static cotton brush is arranged on the lower end surface of the transmission gear.

[0013] Preferably, the static electricity removal device includes an alignment card seat, the inner end surface of the alignment card seat is slidably engaged with a card seat, and an static electricity release seat is arranged on the upper end surface of the card seat, three groups of reset springs for buffering are equidistantly arranged on the lower end surface of the static electricity release seat, and three groups of static electricity removal rollers are equidistantly arranged on the lower end surface of the card seat.

[0014] Preferably, the bottom wall of the lower end surface of the keyboard unloading bin body is fitted and connected to the upper end surface of the synchronous conveyor belt, and the reading groove is directly opposite to the synchronous conveyor belt, which can effectively improve the efficiency and stability of the subsequent clip unloading of the keyboard workpiece by the reading groove.

[0015] Preferably, the alignment slide shaft is adapted to the circulation guide groove, and the adsorption guide seat is slidably engaged with the inner end surface of the limit clamping seat through the alignment slide shaft and the circulation guide groove. When the two groups of supporting shafts rotate, the supporting shafts can pass through the sliding limit of the circulation guide groove and the alignment slide shaft, thereby driving the adsorption guide seat to cyclically move forward and backward, effectively improving the efficiency of the anti-static cotton brush in cleaning the keyboard workpiece multiple times per unit time.

[0016] Preferably, the transmission gear is meshed with the transmission rack, the interior of the adsorption guide seat is hollow, and the upper part of the adsorption guide seat is through-connected with the air intake duct, and the lower end surface of the adsorption guide seat is through-connected with the adsorption head. When the transmission operation is performed, the transmission gear can mesh with the transmission rack when it synchronously displaces at the bottom of the adsorption guide seat, so that when the adsorption guide seat is displaced forward and backward, the transmission gear can rotate and clean the keyboard workpiece through the anti-static cotton brush at the bottom, thereby improving the dust removal efficiency. The interior of the adsorption guide seat is hollow, which can improve the efficiency of the subsequent adsorption head in adsorbing various dusts.

[0017] Preferably, the clamping seat is opposite to the keyboard limit groove, the width of the guide groove is greater than the diameter of the air intake duct, and the clamping seat is opposite to the keyboard limit groove, which can facilitate the subsequent synchronous conveyor belt to always pass through the bottom of the clamping seat during transmission, thereby improving the efficiency of subsequent static electricity removal.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. When the present invention removes dust from the keyboard workpiece, the stepper motor can cyclically drive the circulation guide groove and the supporting shaft to rotate through the synchronous belt and the transmission synchronous wheel, so that within the unit cleaning time, the circulation guide groove can cyclically drive the cleaning adsorption device to clean the outside of the keyboard workpiece multiple times, which effectively improves the cleaning efficiency of the keyboard workpiece. At the same time, the transmission gear can drive the anti-static cotton brush to rotate at a high speed during the cyclic displacement through the engagement with the transmission rack, thereby further improving the cleaning efficiency of the anti-static cotton brush on the keyboard workpiece, and also effectively improving the power utilization efficiency of the equipment, thereby improving the subsequent production efficiency of the keyboard.

[0020] 2. When the keyboard workpiece is loaded, the synchronous conveyor belt of the present invention can fit the bottom of the keyboard lower material bin body, so that the keyboard workpiece inside the keyboard lower material bin body can be introduced into the keyboard limit groove one by one in a clip-like manner, which effectively improves the stability and accuracy of the equipment in loading the keyboard workpiece. At the same time, the front and rear two groups of static electricity removal devices can perform secondary static electricity removal operations on the keyboard workpiece before and after cleaning, which effectively improves the efficiency of the equipment in removing static electricity from the keyboard workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0022] Figure 1 A disassembled diagram of the main body of the present invention;

[0023] Figure 2 It is a structural schematic diagram of the main body of the present invention;

[0024] Figure 3 It is a structural schematic diagram of the feeding device of the present invention;

[0025] Figure 4 It is a schematic diagram of the structure of the dust removal device of the present invention;

[0026] Figure 5 is a side view of the dust removal device of the present invention;

[0027] Figure 6 It is a structural schematic diagram of the cleaning adsorption device of the present invention;

[0028] Figure 7 It is a schematic structural diagram of the static electricity removal device of the present invention;

[0029] Figure 8 It is a side view of the static electricity removal device of the present invention.

[0030] In the figure: 1-keyboard unloading bin, 2-loading device, 3-dust removal device, 4-static removal device, 5-support guide seat, 6-guide slide, 7-air guide cylinder, 8-reading slot, 21-synchronous conveyor belt, 22-keyboard limit slot, 23-transmission guide shaft, 24-fixed base, 25-servo motor, 26-transmission synchronous wheel, 31-limiting card seat, 32-stepping motor, 33-cleaning adsorption device, 34-synchronous belt, 35-transmission synchronous wheel, 36-transmission rack, 37-circulation guide groove, 38-support shaft, 331-intake duct, 332-alignment slide shaft, 333-transmission gear, 334-antistatic cotton brush, 335-adsorption head, 336-adsorption guide seat, 41-reset spring, 42-static release seat, 43-alignment card seat, 44-card seat, 45-static removal roller. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0032] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0033] The present invention is further described below in conjunction with the accompanying drawings.

[0034] Example 1

[0035] See also Figure 1-8 The present invention provides an embodiment: an automatic dust removal device for a keyboard painting line, comprising a feeding device 2 for transmission and feeding, a keyboard unloading bin body 1 for guiding materials is arranged near the front of the upper end surface of the feeding device 2, and a reading groove 8 is symmetrically opened on the inner end surface of the keyboard unloading bin body 1, and a support guide seat 5 is fixedly arranged near the middle of the upper end surface of the feeding device 2,

[0036] The static electricity removal device 4 is provided with two groups, and the two groups of static electricity removal devices 4 are respectively arranged at the front and rear of the support guide seat 5;

[0037] The air guide cylinder 7 is fixedly arranged at the center of the upper end surface of the support guide seat 5, and two sets of guide slide grooves 6 are opened on the upper end surface of the support guide seat 5;

[0038] The dust removal device 3 is slidably clamped on the inner end surface of the support guide seat 5, and the dust removal device 3 is fixedly connected to the bottom of the air guide cylinder 7.

[0039] The loading device 2 includes a fixed base 24, the inner end surface of the fixed base 24 is rotatably clamped with two groups of transmission guide shafts 23, and the outer end surface of the transmission guide shaft 23 is fixedly provided with a conveying synchronous wheel 26, the two groups of conveying synchronous wheels 26 are meshed and connected through a synchronous conveyor belt 21, and the outer end surface of the synchronous conveyor belt 21 is equidistantly provided with two groups of keyboard limit grooves 22, and a servo motor 25 is provided on the side end surface of the fixed base 24 opposite to the transmission guide shaft 23.

[0040] The dust removal device 3 includes a limit card seat 31, and the inner end surface of the limit card seat 31 is rotatably connected with two groups of supporting shafts 38, and the outer end surfaces of the two groups of supporting shafts 38 are provided with circulation guide grooves 37, and the ends of the two groups of supporting shafts 38 are provided with transmission synchronous wheels 35, and the two groups of transmission synchronous wheels 35 are meshed and connected through a synchronous belt 34, and the inner end surface of the limit card seat 31 is provided with two groups of transmission racks 36 for transmission, and the inner end surface of the limit card seat 31 is slidably connected with two groups of cleaning adsorption devices 33 through the circulation guide groove 37, and the rear end surface of the limit card seat 31 is provided with a stepping motor 32.

[0041] The cleaning adsorption device 33 includes an adsorption guide seat 336, a positioning slide shaft 332 is arranged on the top of the inner end surface of the adsorption guide seat 336, and an air intake duct 331 is arranged on the upper end surface of the adsorption guide seat 336, an adsorption head 335 is fixedly arranged at the center of the lower end surface of the adsorption guide seat 336, and a transmission gear 333 is rotatably clamped on the outer end surface of the adsorption head 335, and an anti-static cotton brush 334 is arranged on the lower end surface of the transmission gear 333.

[0042] The static electricity removal device 4 includes an alignment card seat 43, the inner end surface of the alignment card seat 43 is slidably engaged with a card seat 44, and an static electricity release seat 42 is arranged on the upper end surface of the card seat 44, and three groups of reset springs 41 for buffering are equidistantly arranged on the lower end surface of the static electricity release seat 42, and three groups of static electricity removal rollers 45 are equidistantly arranged on the lower end surface of the card seat 44.

[0043] The bottom wall of the lower end surface of the keyboard unloading bin body 1 is fitted and connected to the upper end surface of the synchronous conveyor belt 21, and the reading groove 8 is directly opposite to the synchronous conveyor belt 21, which can effectively improve the efficiency and stability of the subsequent clip unloading of the keyboard workpiece by the reading groove 8.

[0044] The alignment slide shaft 332 is adapted to the circulation guide groove 37, and the adsorption guide seat 336 is adapted to the circulation guide groove 37 through the alignment slide shaft 332 and then slidably clamped on the inner end surface of the limit clamping seat 31. When the two sets of support shafts 38 rotate, the support shafts 38 can pass through the sliding limit of the circulation guide groove 37 and the alignment slide shaft 332, thereby driving the adsorption guide seat 336 to cyclically move forward and backward, effectively improving the efficiency of the anti-static cotton brush 334 in cleaning the keyboard workpiece multiple times per unit time.

[0045] The transmission gear 333 is meshed with the transmission rack 36, the interior of the adsorption guide seat 336 is hollow, and the upper part of the adsorption guide seat 336 is through-connected with the air intake duct 331, and the lower end surface of the adsorption guide seat 336 is through-connected with the adsorption head 335. When the transmission operation is performed, the transmission gear 333 can be meshed with the transmission rack 36 when it is synchronously displaced at the bottom of the adsorption guide seat 336, so that when the adsorption guide seat 336 is displaced forward and backward, the transmission gear 333 can rotate and clean the keyboard workpiece through the anti-static cotton brush 334 at the bottom, thereby improving the dust removal efficiency. The interior of the adsorption guide seat 336 is hollow, which can improve the efficiency of the subsequent adsorption head 335 in adsorbing various dusts.

[0046] The clamping seat 44 is opposite to the keyboard limit groove 22, the width of the guide groove 6 is greater than the diameter of the air intake duct 331, and the clamping seat 44 is opposite to the keyboard limit groove 22, which can facilitate the subsequent synchronous conveyor belt 21 to always pass through the bottom of the clamping seat 44 during transmission, thereby improving the efficiency of subsequent static electricity removal.

[0047] Working principle: Before use, the staff can connect the air intake duct 331 with the external exhaust duct to facilitate the subsequent provision of sufficient negative pressure wind force for the air intake duct 331 and the adsorption head 335 to adsorb various dusts. Then the staff can batch-introduce the keyboard workpieces that need to be dusted into the interior of the keyboard lower material bin body 1 to facilitate the subsequent continuous provision of processed workpieces for the loading device 2. When loading the keyboard workpieces, the staff can start the servo motor 25. At this time, the servo motor 25 can synchronously drive the synchronous wheels 26 through two sets of conveying synchronous wheels. The synchronous conveyor belt 21 rotates, so that the synchronous conveyor belt 21 can cyclically drive the keyboard limit slot 22 to intermittently move. At this time, the keyboard limit slot 22 inside the synchronous conveyor belt 21 can cyclically position to the bottom of the keyboard unloading bin body 1, so that the keyboard unloading bin body 1 can guide the keyboard workpieces one by one into the keyboard limit slot 22. With the rotation of the synchronous conveyor belt 21, the keyboard limit slot 22 first moves to the inside of the anti-static device 4 located at the front, and multiple sets of anti-static rollers 45 can make all-round contact with the outside of the keyboard workpiece, thereby The various static electricity inside the keyboard is initially discharged through the static electricity release seat 42, and then the synchronous conveyor belt 21 can drive the keyboard limit slot 22 to be positioned directly below the dust removal device 3. At this time, the air guide cylinder 7 is started, and the air guide cylinder 7 can drive the bottom limit card seat 31 to move downward. At this time, the limit card seat 31 can synchronously drive the two sets of cleaning adsorption devices 33 to move downward, so that the anti-static cotton brush 334 can be pressed on the keyboard workpiece that needs to be dusted. Then the stepper motor 32 is started, and the stepper motor 32 can synchronously drive the two sets of support devices 33 through the synchronous belt 34 and the transmission synchronous wheel 35. The support shaft 38 is used for transmission, and the two groups of support shafts 38 can pass through the sliding limit of the circulation guide groove 37 and the positioning slide shaft 332, and then synchronously drive the two groups of adsorption guide seats 336 to move forward and backward. At the same time, when the transmission gear 333 is displaced, it can engage with the transmission rack 36, thereby driving the two groups of anti-static cotton brushes 334 to perform all-round dust removal operations on the two groups of keyboards. At the same time, the adsorption head 335 can perform all-round adsorption of dust. After the keyboard workpiece after dust removal passes through the secondary anti-static operation of the rear anti-static device 4, it is unloaded by the robotic arm.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic dust removal device for a keyboard painting line, comprising a feeding device (2) for transmission and feeding, a keyboard unloading bin body (1) for guiding materials is arranged near the front of the upper end surface of the feeding device (2), and a reading groove (8) is symmetrically opened on the inner end surface of the keyboard unloading bin body (1), and a support guide seat (5) is fixedly arranged near the middle of the upper end surface of the feeding device (2), characterized in that: A static electricity removal device (4), wherein the static electricity removal device (4) is provided with two groups, and the two groups of the static electricity removal devices (4) are respectively arranged at the front and rear of the support guide seat (5); An air guide cylinder (7), the air guide cylinder (7) is fixedly arranged at the center of the upper end surface of the support guide seat (5), and two groups of guide grooves (6) are opened on the upper end surface of the support guide seat (5); A dust removal device (3), wherein the dust removal device (3) is slidably engaged with the inner end surface of the support guide seat (5), and the dust removal device (3) is fixedly connected to the bottom of the air guide cylinder (7).

2. The automatic dust removal device for keyboard painting line according to claim 1 is characterized by: The loading device (2) comprises a fixed base (24), the inner end surface of the fixed base (24) is rotatably engaged with two groups of transmission guide shafts (23), and the outer end surface of the transmission guide shaft (23) is fixedly provided with a conveying synchronous wheel (26), the two groups of the conveying synchronous wheels (26) are meshed and connected through a synchronous conveyor belt (21), the outer end surface of the synchronous conveyor belt (21) is provided with two groups of keyboard limit grooves (22) at equal distances, and a servo motor (25) is provided at the side end surface of the fixed base (24) directly opposite to the transmission guide shaft (23).

3. The automatic dust removal device for keyboard painting line according to claim 2 is characterized by: The dust removal device (3) comprises a limit card seat (31), the inner end surface of the limit card seat (31) is rotatably engaged with two groups of support shafts (38), and the outer end surfaces of the two groups of support shafts (38) are provided with circulation guide grooves (37), the ends of the two groups of support shafts (38) are provided with transmission synchronous wheels (35), and the two groups of transmission synchronous wheels (35) are meshedly connected through a synchronous belt (34), the inner end surface of the limit card seat (31) is provided with two groups of transmission racks (36) for transmission, and the inner end surface of the limit card seat (31) is slidably engaged with two groups of cleaning adsorption devices (33) through the circulation guide grooves (37), and the rear end surface of the limit card seat (31) is provided with a stepping motor (32) directly opposite to one of the groups of support shafts (38).

4. The automatic dust removal device for keyboard painting line according to claim 3 is characterized by: The cleaning adsorption device (33) comprises an adsorption guide seat (336), a positioning sliding shaft (332) is arranged at the top of the inner end surface of the adsorption guide seat (336), and an air intake duct (331) is arranged at the upper end surface of the adsorption guide seat (336), an adsorption head (335) is fixedly arranged at the center of the lower end surface of the adsorption guide seat (336), and a transmission gear (333) is rotatably engaged with the outer end surface of the adsorption head (335), and an anti-static cotton brush (334) is arranged at the lower end surface of the transmission gear (333).

5. The automatic dust removal device for keyboard painting line according to claim 4 is characterized by: The static electricity removal device (4) comprises an alignment card seat (43), the inner end surface of the alignment card seat (43) is slidably engaged with a card seat (44), and an electrostatic release seat (42) is arranged on the upper end surface of the card seat (44), three groups of return springs (41) for buffering are equidistantly arranged on the lower end surface of the electrostatic release seat (42), and three groups of static electricity removal rollers (45) are equidistantly arranged on the lower end surface of the card seat (44).

6. The automatic dust removal device for keyboard painting line according to claim 5 is characterized by: The bottom wall of the lower end surface of the keyboard lower material bin body (1) is fitted and connected to the upper end surface of the synchronous conveyor belt (21), and the reading groove (8) is directly opposite to the synchronous conveyor belt (21).

7. The automatic dust removal device for keyboard painting line according to claim 5 is characterized by: The alignment sliding shaft (332) is matched with the circulation guide groove (37), and the adsorption guide seat (336) is matched with the circulation guide groove (37) through the alignment sliding shaft (332) and then slidably engaged with the inner end surface of the limiting seat (31).

8. The automatic dust removal device for keyboard painting line according to claim 5 is characterized by: The transmission gear (333) is meshedly connected with the transmission rack (36); the interior of the adsorption guide seat (336) is hollow, and the upper part of the adsorption guide seat (336) is connected to the air intake duct (331); the lower end surface of the adsorption guide seat (336) is connected to the adsorption head (335).

9. The automatic dust removal device for keyboard painting line according to claim 5 is characterized by: The clamping seat (44) is directly opposite to the keyboard limiting groove (22), and the width of the guide sliding groove (6) is greater than the diameter of the air intake duct (331).

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