Excavator relieved tooth plastic spraying equipment and method

Abstract

The invention relates to the technical field of plastic spraying, and discloses excavator form relieved tooth plastic spraying equipment which comprises a box body, a hanging rail is fixed to the upper portion of the box body, a movable hook is installed on the hanging rail, a supporting plate is fixed to the box body, a first hollow rod is rotationally connected to the supporting plate, a rotatable base is arranged above the first hollow rod, and a second hollow rod is arranged above the base. Movable housings are arranged on the two sides of the base, and a plurality of rotatable spray guns are arranged on the housings; an adsorption cover is fixed to the base, an annular baffle is rotationally connected to the base, a plurality of teeth are arranged on the annular baffle, and the purpose that the height of the base, the height of the cover shell and the height of the spray guns can be adjusted relative to the position of a workpiece can be achieved. The spray gun can uniformly spray powder on the positions, where dead angles easily exist, of the lower side surface and the upper side surface of the workpiece, the powder spraying dead angles can be further reduced, and the workpiece powder spraying quality is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of plastic spraying, in particular to a plastic spraying device and method for excavator bucket teeth. BACKGROUND

[0002] Plastic spraying, also known as electrostatic powder spraying, is a process in which powder coating is sprayed on the surface of a metal object by electrostatic adsorption. The powder coating is fed into a spray gun by a powder supply system using compressed gas. A high-voltage static generator is attached to the front end of the spray gun to generate a high voltage, which produces a dense charge in its vicinity. When the powder is sprayed from the nozzle, it forms charged coating particles that are attracted to the workpiece with the opposite polarity due to the electrostatic force. As more powder is sprayed, the charge accumulates. When the thickness reaches a certain level, the electrostatic repulsion effect prevents further adsorption, resulting in a powder coating of a certain thickness on the entire workpiece. Then, the powder is melted, leveled, and solidified by heating, forming a hard coating film on the surface of the workpiece.

[0003] The excavator bucket teeth can improve corrosion resistance, surface wear resistance, and impact resistance by plastic spraying. However, due to the irregular shape of the excavator bucket teeth, there may be dead angles during the spraying process. After the automatic powder spraying of the plastic spraying device is completed, manual re-spraying is required for the positions that have not been sprayed. Additionally, the plastic spraying process does not have a function to recycle the unabsorbed powder, which is directly released into the air, polluting the environment and wasting powder, increasing the cost of plastic spraying. SUMMARY

[0004] The present application provides a plastic spraying device and method for excavator bucket teeth, which can adjust the height of the base, cover, and several spray guns relative to the position of the workpiece, allowing the spray gun to uniformly spray powder on the positions where dead angles are likely to exist on the lower and upper surfaces of the workpiece. This can further reduce powder dead angles and improve the quality of workpiece plastic spraying. The present application solves the problem of powder dead angles during the plastic spraying process mentioned in the background technology, as well as the need for manual re-spraying after the automatic powder spraying of the plastic spraying device is completed. Additionally, the plastic spraying process does not have a function to recycle the unabsorbed powder, which is directly released into the air, polluting the environment and wasting powder, increasing the cost of plastic spraying.

[0005] The present application provides the following technical solution: a plastic spraying device for excavator bucket teeth, comprising a box body, a hanging rail fixed above the box body, a movable hook installed on the hanging rail, a support plate fixed on the box body, a first hollow rod rotatably connected to the support plate, a rotatable base provided above the first hollow rod, movable cover shells provided on both sides of the base, and several rotatable spray guns provided on the cover shells.

[0006] An adsorption cover is fixed on the base, and an annular baffle is rotatably connected to the base, a plurality of teeth are provided on the annular baffle, a plurality of arc scrapers equidistantly distributed around the circumference are provided on the base, tooth grooves are provided on the arc scraper, and an annular brush plate is mounted on the adsorption cover.

[0007] As an optional solution of the excavator shovel tooth spraying equipment described in the present invention, a second hollow rod is fixed under the base, the second hollow rod is connected to the adsorption cover, the second hollow rod is elastically connected to the first hollow rod through a first spring, and a first arc-shaped resistance block is fixed on the support plate.

[0008] As an optional solution to the excavator shovel tooth spraying equipment described in the present invention, a second arc-shaped interference block is provided under the base, a first interference rod is fixed on the second arc-shaped interference block, the first interference rod is elastically connected to the base through a second spring, a plurality of V-shaped interference blocks are fixed on the annular baffle, and a third spring is connected between the annular baffle and the base, and a first interference wedge block that interferes with the first interference rod is fixed on the annular baffle.

[0009] As an optional solution of the excavator tooth spray equipment described in the present invention, wherein: a first mounting block and a second mounting block are respectively fixed on the cover shell, a first mounting column is fixed on the spray gun, the first mounting column is rotatably connected to the first mounting block, and a first torsion spring is connected between the first mounting column and the first mounting block, a guide groove is provided on one side of the spray gun, a guide column is slidably connected in the guide groove, a second interference rod is connected to the guide column, and the second interference rod is elastically connected to the second mounting block through a fourth spring.

[0010] As an optional solution of the excavator shovel tooth spray equipment described in the present invention, the teeth and the tooth grooves are engaged with each other, a second mounting column is fixed on the base, the arc scraper is inserted on the second mounting column, a limiting block is fixed on the second mounting column, an arc block is fixed on the base, a track groove is provided on the arc block, a guide rod is fixed below the arc scraper, and the lower end of the guide rod is against the arc block.

[0011] As an optional solution of the excavator shovel tooth spraying equipment described in the present invention, wherein: a conical cover is provided above the adsorption cover, and a third interference rod and a second interference wedge are respectively fixed on the annular brush plate, and the third interference rod is slidingly connected to the conical cover through a sixth spring, and a third mounting block is fixed on the conical cover, and a rocker bracket is rotatably connected to the third mounting block, and a second torsion spring is connected between the rocker bracket and the third mounting block, and a interference strip is fixed on the arc scraper.

[0012] As an optional scheme of the excavator tooth spraying device, the base is fixed with a strip-shaped frame on both sides, the strip-shaped frame is fixed with a sliding rod, the cover is fixed with a strip-shaped block, the strip-shaped block is slidably connected to the sliding rod, the base is provided with an adjusting assembly for adjusting the position of the strip-shaped block, the first hollow rod is fixed with a first gear, the support plate is fixed with a servo motor, the motor shaft of the servo motor is fixed with a second gear, and the second gear is meshed with the first gear.

[0013] As an optional scheme of the excavator tooth spraying device, the adjusting assembly comprises a bidirectional electric sliding table, the bidirectional electric sliding table is fixed to the base, two moving ends are arranged on the bidirectional electric sliding table, a connecting rod is hingedly connected to the moving end, and the other end of the connecting rod is hingedly connected to the strip-shaped block.

[0014] As an optional scheme of the excavator tooth spraying device, the adjusting assembly comprises a fixed sheet, the fixed sheet is fixed to the base, and an electric push rod is fixed to the fixed sheet, and the piston rod of the electric push rod is fixedly connected to the strip-shaped block.

[0015] An excavator tooth spraying method comprises the following specific steps:

[0016] Step one, workpiece pretreatment, remove the oil stains, dust and rust on the surface of the excavator tooth, and perform passivation treatment on the workpiece by using phosphating solution to generate a layer of phosphating layer on the surface of the excavator tooth, which is corrosion-resistant and can increase the adhesion of the powder coating;

[0017] Step two, equipment adjustment, adjust the electrostatic discharge voltage at the front end of the spray gun and the compressed air pressure, move the excavator tooth hooked by the hook on the hanger rail into the box body and above the base, and wrap the excavator tooth by the two covers through the adjusting assembly;

[0018] Step three, spray treatment, the spray gun on the base and the two covers is deflected synchronously by the servo motor, the second arc-shaped abutting block abuts against the support plate, the first abutting rod abuts against the first abutting wedge, the annular baffle drives the V-shaped abutting block to deflect and abut against the second abutting rod, the spray gun swings up and down to spray powder on the surface of the excavator tooth, when the second arc-shaped abutting block deflects and abuts against the first arc-shaped abutting block, the base reciprocates up and down as a whole, the spray gun can spray powder at multiple angles, the dead angle of the excavator tooth is reduced, the powder is uniformly attached to the surface of the excavator tooth, and when the powder reaches a certain thickness, the electrostatic repulsion effect is generated, the powder is not continuously adsorbed, and the excavator tooth is completed.

[0019] Step four, powder recovery, the lower end of the first hollow rod is connected with the adsorption device, the suction force generated by the adsorption device flows into the closed cover through the adsorption cover while the powder is sprayed by the spray gun, the powder scattered on the surface of the base can be adsorbed, when the annular baffle is deflected, a plurality of arc-shaped scrapers can be driven to rotate, the powder on the surface of the base can be scraped to the vicinity of the adsorption cover, the powder recovery effect of the adsorption cover is improved, at the same time, when the arc-shaped scraper is deflected, the annular brush plate can be moved on the adsorption cover, the impurities blocked in the filter hole of the adsorption cover can be cleaned, the powder adsorption effect is improved, after the plastic spraying is completed, the cover is separated, the hanger rail drives the hook to continue to move, and the excavator bucket tooth after the plastic spraying is completed is taken to the next process for processing.

[0020] The present application has the following advantages:

[0021] 1、The excavator bucket tooth plastic spraying equipment, when the two covers are moved to be attached to each other on the base, the workpiece on the hook can be wrapped, powder sprayed by the spray gun can be reduced to float in the air, thereby reducing waste and environmental pollution, through cooperation of the servo motor, the first hollow rod and the second hollow rod, the base, the two covers and the plurality of spray guns can be driven to rotate synchronously, the spray gun can spray the entire surface of the workpiece, when the second arc-shaped abutting block abuts against the supporting plate, the annular baffle can be deflected on the base, the plurality of V-shaped abutting blocks and the second abutting rod can be driven to abut against each other, when the second abutting rod moves up and down, under cooperation of the guide groove and the guide column, the spray gun can swing vertically on the cover to spray powder, the spraying range of the surface of the workpiece can be improved, and the dead angle of spraying can be reduced, when the second arc-shaped abutting block abuts against the first arc-shaped abutting block, the base, the cover and the plurality of spray guns can be adjusted in height relative to the position of the workpiece, the spray gun can uniformly spray powder on the lower surface and the upper surface of the workpiece, the dead angle of spraying can be further reduced, and the quality of the workpiece plastic spraying can be improved.

[0022] 2、The excavator tooth spraying equipment is provided with an adsorption cover which is in communication with the second hollow rod and the first hollow rod, the suction force generated by the adsorption device flows into the closed cover through the adsorption cover when the first hollow rod is connected with the adsorption device, the powder scattered on the surface of the base can be adsorbed, the purpose of powder recycling is achieved, the waste of powder is reduced, the cost of workpiece spraying is reduced, the teeth on the tooth gear mesh with the tooth grooves on the arc-shaped scraper when the annular baffle deflects, the purpose of driving the arc-shaped scraper to deflect on the second mounting column is achieved, the arc-shaped scraper is used to scrape the powder scattered on the base to the side of the adsorption cover, the powder recycling effect of the adsorption cover is improved, the guide rod on the arc-shaped scraper can abut against the arc-shaped block, the guide rod moves along the preset track in the track groove when the arc-shaped scraper deflects, the arc-shaped scraper is conveniently lowered to scrape the powder on the surface of the base, the powder is scraped to the side of the adsorption cover when the arc-shaped scraper deflects, the arc-shaped scraper can realize the purpose of powder lifting when the arc-shaped scraper is raised, the filter holes on the upper side of the adsorption cover can adsorb the powder, and the risk of blockage of the filter holes on the lower side of the adsorption cover is reduced.

[0023] 3、The excavator tooth spraying equipment is provided with a conical cover arranged above the adsorption cover, the powder not attached to the workpiece falls on the conical cover and then falls onto the surface of the base, accumulation on the adsorption cover is avoided, the dead angle of recycling is reduced, and the recycling effect is improved, the annular brush plate sleeved on the adsorption cover can clean the powder blocked in the filter holes on the surface of the adsorption cover when the annular brush plate moves vertically, and the adsorption effect is improved.

[0024] The arc-shaped scraper can drive the contact strip to contact the third contact rod when the arc-shaped scraper deflects, the annular brush plate moves vertically on the adsorption cover to clean the filter holes, the third contact rod fixed on the annular brush plate can slide in the conical cover, the third contact rod contacts the flap support, the flap support deflects, the conical cover and the adsorption cover are knocked, on one hand, the powder on the conical cover falls at a high speed, and on the other hand, the vibration generated by knocking acts on the adsorption cover, the blocked objects in the filter holes are separated from the filter holes, and the adsorption effect of the adsorption cover is improved. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a perspective structural schematic view of the present application.

[0026] Figure 2 It is a perspective structural schematic view of the present application.

[0027] Figure 3 It is a perspective structural schematic view of the present application.

[0028] Figure 4 It is a perspective structural schematic view of the present application.

[0029] Figure 5Schematic diagram of the base structure of the present application.

[0030] Figure 6 Schematic diagram of the base structure of the present application.

[0031] Figure 7 Schematic diagram of the adjusting assembly structure of the present application.

[0032] Figure 8 Schematic diagram of the adjusting assembly structure of the present application. Figure 2 Partial enlarged view at A in FIG.

[0033] Figure 9 Schematic diagram of the adjusting assembly structure of the present application. Figure 4 Partial enlarged view at B in FIG.

[0034] Figure 10 Schematic diagram of the adjusting assembly structure of the present application. Figure 5 Partial enlarged view at C in FIG.

[0035] Figure 11 Schematic diagram of the adjusting assembly structure of the present application. Figure 6 Partial enlarged view at D in FIG.

[0036] Figure 12 Flowchart of the plastic spraying method of the present application.

[0037] In the figure: 1, box body; 2, hanging rail; 3, hook; 4, support plate; 5, first hollow rod; 6, base; 61, bidirectional electric sliding table; 62, moving end; 63, connecting rod; 64, fixed sheet; 65, electric push rod; 7, cover shell; 71, strip block; 8, spray gun; 9, annular baffle; 10, adsorption cover; 11, annular brush plate; 12, second hollow rod; 13, first spring; 14, first arc-shaped abutting block; 15, second arc-shaped abutting block; 16, first abutting rod; 17, second spring; 18, tooth; 19, V-shaped abutting block; 20, third spring; 21, first mounting block; 22, first mounting column; 23, first torsion spring; 24, guide groove; 25, guide column; 26, second abutting rod; 27, fourth spring; 28, second mounting block; 29, second mounting column; 30, first abutting wedge block; 31, arc-shaped block; 32, track groove; 33, guide rod; 34, limiting block; 35, conical cover; 36, third abutting rod; 37, second abutting wedge block; 38, sixth spring; 39, third mounting block; 40, cantilever bracket; 41, second torsion spring; 42, strip frame; 43, sliding rod; 44, first gear; 45, servo motor; 46, second gear; 47, abutting strip; 48, tooth groove; 49, arc-shaped scraping plate. DETAILED DESCRIPTION

[0038] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0039] Embodiment one, please refer to Figures 1 to 12 A tooth spraying device for excavator bucket, comprising a box body 1, a hanging rail 2 is fixed above the box body 1, a movable hook 3 is installed on the hanging rail 2, a support plate 4 is fixed on the box body 1, a first hollow rod 5 is rotatably connected on the support plate 4, a rotatable base 6 is arranged above the first hollow rod 5, movable cover shells 7 are arranged on both sides of the base 6, and a plurality of rotatable spray guns 8 are arranged on the cover shells 7.

[0040] A suction cover 10 is fixed on the base 6, and a ring-shaped baffle 9 is rotatably connected on the base 6, a plurality of teeth 18 are arranged on the ring-shaped baffle 9, a plurality of circumferentially equidistantly distributed arc-shaped scrapers 49 are arranged on the base 6, tooth grooves 48 are arranged on the arc-shaped scrapers 49, and a ring-shaped brush plate 11 is sleeved on the suction cover 10.

[0041] A second hollow rod 12 is fixed below the base 6, the second hollow rod 12 is communicated with the suction cover 10, the second hollow rod 12 is elastically connected with the first hollow rod 5 through a first spring 13, and a first arc-shaped abutting block 14 is fixed on the support plate 4.

[0042] A second arc-shaped abutting block 15 is arranged below the base 6, a first abutting rod 16 is fixed on the second arc-shaped abutting block 15, the first abutting rod 16 is elastically connected with the base 6 through a second spring 17, a plurality of V-shaped abutting blocks 19 are fixed on the ring-shaped baffle 9, a third spring 20 is connected between the ring-shaped baffle 9 and the base 6, and a first abutting wedge block 30 abutting with the first abutting rod 16 is fixed on the ring-shaped baffle 9.

[0043] A first mounting block 21 and a second mounting block 28 are respectively fixed on the cover shell 7, a first mounting column 22 is fixed on the spray gun 8, the first mounting column 22 is rotatably connected on the first mounting block 21, a first torsional spring 23 is connected between the first mounting column 22 and the first mounting block 21, a guide groove 24 is arranged on one side of the spray gun 8, a guide column 25 is slidably connected in the guide groove 24, a second abutting rod 26 is connected on the guide column 25, and the second abutting rod 26 is elastically connected with the second mounting block 28 through a fourth spring 27.

[0044] Two sides of the base 6 are fixed with strip frames 42, the strip frames 42 are fixed with slide rods 43, the cover 7 is fixed with strip blocks 71, the strip blocks 71 are slidingly connected with the slide rods 43, the base 6 is provided with an adjusting assembly for adjusting the position of the strip blocks 71, the first hollow rod 5 is fixed with a first gear 44, the supporting plate 4 is fixed with a servo motor 45, a motor shaft of the servo motor 45 is fixed with a second gear 46, the second gear 46 is meshed with the first gear 44.

[0045] The adjusting assembly comprises a bidirectional electric sliding table 61, the bidirectional electric sliding table 61 is fixed on the base 6, the bidirectional electric sliding table 61 is provided with two moving ends 62, the moving ends 62 are hingedly connected with connecting rods 63, the other ends of the connecting rods 63 are hingedly connected with the strip blocks 71.

[0046] Reference Figures 1-9 The hook 3 on the overhead rail 2 hooks the workpiece and can be moved into the box body 1, passes through the gap between the two covers 7, can be moved to the top of the base 6, and then stops moving, the positions of the two moving ends 62 are adjusted through the bidirectional electric sliding table 61, the connecting rods 63 drive the strip blocks 71 to move horizontally on the slide rods 43 of the strip frames 42, so that the two covers 7 are attached to each other to wrap the workpiece, when the first gear 44 is meshed with the second gear 46, the servo motor 45 can drive the first hollow rod 5 to reciprocate on the supporting plate 4, so that the base 6, the cover 7 and the plurality of spray guns 8 on the cover 7 are synchronously reciprocated, so that the charged powder sprayed by the spray guns 8 can be uniformly adsorbed on the surface of the workpiece;

[0047] Meanwhile, the second arc-shaped abutting block 15 first abuts against the support plate 4 during the rotation of the base 6, which can drive the first abutting rod 16 to move upwards and abut against the first abutting wedge 30, and the second spring 17 is charged. After the first abutting wedge 30 is abutted, it can drive the annular baffle 9 to deflect, and the third spring 20 is charged. The annular baffle 9 drives the plurality of V-shaped abutting blocks 19 to rotate synchronously and abut against the plurality of second abutting rods 26, which promotes the second abutting rod 26 to slide vertically on the second mounting block 28, and the fourth spring 27 is charged. The second abutting rod 26 drives the guide column 25 to slide in the guide groove 24 formed on one side of the spray gun 8, which facilitates the first mounting column 22 of the fixed spray gun 8 to deflect on the first mounting block 21, and the first torsional spring 23 is charged. The spray gun 8 is promoted to reciprocate vertically on the cover 7 to spray powder, and the swing range is 180-270 degrees, which can improve the spraying range and reduce the dead angle of spraying. When the second arc-shaped abutting block 15 continues to rotate, it can abut against the first arc-shaped abutting block 14, which promotes the base 6 to move upwards, and the second hollow rod 12 slides vertically on the first hollow rod 5, and the first spring 13 is charged. The base 6, the cover 7 and the plurality of spray guns 8 can be adjusted in height relative to the position of the workpiece, which promotes the spray gun 8 to uniformly spray powder on the positions where the dead angle is prone to exist on the upper and lower surfaces of the workpiece, further reduces the dead angle of spraying, and improves the quality of workpiece spraying.

[0048] In the embodiment, the first arc-shaped abutting block 14 and the second arc-shaped abutting block 15 are arranged on the base 6, the first arc-shaped abutting block 14 is connected with the first abutting rod 16, the second arc-shaped abutting block 15 is connected with the second abutting rod 26, and the first abutting rod 16 and the second abutting rod 26 are connected with the first spring 13 and the fourth spring 27 respectively. Figures 1 to 12 The teeth 18 are engaged with the tooth grooves 48, the base 6 is fixed with the second mounting column 29, the arc-shaped scraper 49 is inserted into the second mounting column 29, the second mounting column 29 is fixed with the limiting block 34, the base 6 is fixed with the arc-shaped block 31, the arc-shaped block 31 is provided with the track groove 32, the lower end of the guide rod 33 is abutted against the arc-shaped block 31, and the arc-shaped scraper 49 is fixed with the abutting strip 47.

[0049] The conical cover 35 is arranged above the adsorption cover 10, the third abutting rod 36 and the second abutting wedge 37 are fixed on the annular brush plate 11 respectively, the third abutting rod 36 is slidably connected with the conical cover 35 through the sixth spring 38, the conical cover 35 is fixed with the third mounting block 39, the third mounting block 39 is rotatably connected with the flap bracket 40, the second torsional spring 41 is connected between the flap bracket 40 and the third mounting block 39, and the arc-shaped scraper 49 is fixed with the abutting strip 47.

[0050] In order to reduce the waste of powder, the powder not attached to the surface of the workpiece is adsorbed and recycled during the workpiece spraying process. Figures 4-11, when the first hollow rod 5 is connected with the adsorption device, the suction force generated by the adsorption device flows into the adsorption cover 10 through the second hollow rod 12, a pressure difference is formed, and the powder scattered on the base 6 around the adsorption cover 10 can be adsorbed and recovered; when the annular baffle 9 is deflected, the teeth 18 can be driven to rotate synchronously; the end of the arc-shaped scraper 49 is provided with an integrally formed sleeving block, the tooth groove 48 is arranged on the sleeving block, the teeth 18 and the tooth groove 48 are in meshing connection, the sleeving block at the end of the arc-shaped scraper 49 rotates on the second mounting column 29, the track groove 32 arranged on the arc-shaped block 31 is arc-shaped on both sides and high in position in the middle, is horizontal in position and low in the middle, and is U-shaped, the guiding rod 33 in the initial state is located at one end of the track groove 32, the arc-shaped scraper 49 is in the lifted state, and the powder on the annular baffle 9 is conveniently caused to slide to one side of the arc-shaped scraper 49; when the arc-shaped scraper 49 is deflected, the guiding rod 33 moves downward along the track groove 32, is then deflected horizontally, the powder on the surface of the base 6 is scraped to one side of the adsorption cover 10, finally the guiding rod 33 moves upward along the track groove 32, the arc-shaped scraper 49 moves on the second mounting column 29, the upward movement height of the arc-shaped scraper 49 is limited by the limiting block 34, the arc-shaped scraper 49 is prevented from being separated from the second mounting column 29, the teeth 18 and the tooth groove 48 cannot be in meshing connection, the purpose of the arc-shaped scraper 49 for scattering powder can be achieved, the powder on the upper side of the adsorption cover 10 is conveniently adsorbed through the filter holes, and the risk of blockage of the filter holes on the lower side of the adsorption cover 10 is reduced;

[0051] When the arc-shaped scraper 49 is deflected to scrape powder, the purpose of the abutting strip 47 in abutting against the second abutting wedge 37 can be achieved, the annular brush plate 11 is caused to move vertically on the adsorption cover 10, the third abutting rod 36 is caused to slide on the conical cover 35, the sixth spring 38 is energized, the powder blocked in the filter holes on the surface of the adsorption cover 10 can be cleaned when the annular brush plate 11 moves, the powder adsorption effect is improved, the purpose of the third abutting rod 36 in abutting against the warped plate support 40 can be achieved, the warped plate support 40 is caused to be deflected on the third mounting block 39, the second torsional spring 41 is energized, and the purpose of knocking the conical cover 35 and the adsorption cover 10 can be achieved; on one hand, the powder on the conical cover 35 can be caused to slide at a higher speed, and on the other hand, the vibration caused by knocking acts on the adsorption cover 10, the blocked objects in the filter holes are caused to separate from the filter holes, and the adsorption effect of the adsorption cover 10 is improved.

[0052] In the embodiment three, the improvement is made on the basis of the embodiment one, and the specific improvement can be known from Figures 1 to 12 The adjusting assembly comprises a fixed sheet 64, the fixed sheet 64 is fixed on the base 6, and the electric push rod 65 is fixed on the fixed sheet 64.

[0053] For reference Figure 7, through the fixed sheet 64 installed on the base 6, the electric push rod 65 is fixed, through the piston rod of the electric push rod 65 telescopic adjustment, conveniently drive the strip block 71 in the slide rod 43 of the strip frame 42 horizontal movement, the opening and closing position of the cover shell 7 is adjusted, the workpiece is wrapped.

[0054] Embodiment four, please refer to Figures 1 to 12 A method for excavator tooth spraying, comprising the following specific steps:

[0055] Step one, workpiece pretreatment, remove the oil, dust, rust on the surface of the excavator tooth, passivation treatment through phosphating solution, generate a layer of corrosion-resistant and can increase the adhesion of the phosphating layer on the surface of the excavator tooth;

[0056] Step two, equipment adjustment, adjust the front end of the spray gun 8 static discharge voltage and compressed air pressure, through the suspension rail 2 drive the hook 3 on the excavator tooth hooking to the box 1, and above the base 6, through the adjustment assembly to promote the two cover shells 7 to wrap the excavator tooth;

[0057] Step three, spray treatment, through the servo motor 45 drive the base 6 and two cover shells 7 on the spray gun 8 synchronous deflection, at the same time, the second arc-shaped contact block 15 and the support plate 4 contact, promote the first contact rod 16 and the first contact wedge 30 contact, so that the annular baffle 9 drive the V-shaped contact block 19 deflection and the second contact rod 26 contact, promote the spray gun 8 swing up and down to the surface of the excavator tooth for powder spraying, when the second arc-shaped contact block 15 deflection and the first arc-shaped contact block 14 contact, promote the base 6 reciprocating movement, can realize the spray gun 8 for multi-angle powder spraying, reduce the excavator tooth spraying dead angle, promote the powder evenly attached to the surface of the excavator tooth, until the powder reaches a certain thickness, because of the electrostatic repulsion, will not continue to absorb, the excavator tooth completes the powder spraying;

[0058] Step four, powder recycling, the lower end of the first hollow rod 5 is connected with the adsorption equipment, the spray gun 8 powder spraying at the same time, the suction force generated by the adsorption equipment through the adsorption cover 10 to the closed cover shell 7, can absorb the powder scattered on the surface of the base 6, when the annular baffle 9 deflection can drive several arc-shaped scraper 49 rotation, the powder on the surface of the base 6 is scraped to the adsorption cover 10, improve the adsorption cover 10 powder recycling effect, at the same time, the arc-shaped scraper 49 deflection can promote the annular brush plate 11 movement on the adsorption cover 10, can clean the impurities blocked in the filter hole of the adsorption cover 10, improve the effect of powder adsorption, after spraying, the cover shell 7 is separated, the suspension rail 2 drive the hook 3 continue to move, the excavator tooth after spraying is taken to the next process for processing.

[0059] It is to be noted that, in the present text, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0060] The above description is only the preferred embodiment of the present application, it should be pointed out that, for those skilled in the art, without departing from the technical principles of the present application, a number of improvements and refinements can also be made, which should be considered as the protection scope of the present application.

Claims

1. An excavator shovel tooth plastic spraying device, comprising a box (1), characterized in that: A hanging rail (2) is fixed above the box (1), a movable hook (3) is installed on the hanging rail (2), a support plate (4) is fixed on the box (1), a first hollow rod (5) is rotatably connected to the support plate (4), a rotatable base (6) is provided above the first hollow rod (5), a movable cover (7) is provided on both sides of the base (6), and a plurality of rotatable spray guns (8) are provided on the cover (7); An adsorption cover (10) is fixed on the base (6), and an annular baffle (9) is rotatably connected to the base (6), and a plurality of teeth (18) are provided on the annular baffle (9). A plurality of arc-shaped scrapers (49) equidistantly distributed around the circumference are provided on the base (6), and tooth grooves (48) are provided on the arc-shaped scrapers (49). An annular brush plate (11) is mounted on the adsorption cover (10).

2. The excavator shovel tooth plastic spraying equipment according to claim 1, characterized in that: A second hollow rod (12) is fixed below the base (6), the second hollow rod (12) is connected to the adsorption cover (10), the second hollow rod (12) is elastically connected to the first hollow rod (5) via a first spring (13), and a first arc-shaped resistance block (14) is fixed on the support plate (4).

3. The excavator shovel tooth plastic spraying equipment according to claim 1, characterized in that: A second arc-shaped interference block (15) is provided below the base (6), a first interference rod (16) is fixed on the second arc-shaped interference block (15), the first interference rod (16) is elastically connected to the base (6) via a second spring (17), a plurality of V-shaped interference blocks (19) are fixed on the annular baffle (9), a third spring (20) is connected between the annular baffle (9) and the base (6), and a first interference wedge (30) that interferes with the first interference rod (16) is fixed on the annular baffle (9).

4. The excavator shovel tooth plastic spraying equipment according to claim 1, characterized in that: A first mounting block (21) and a second mounting block (28) are respectively fixed on the cover shell (7), a first mounting column (22) is fixed on the spray gun (8), the first mounting column (22) is rotatably connected to the first mounting block (21), and a first torsion spring (23) is connected between the first mounting column (22) and the first mounting block (21), a guide groove (24) is provided on one side of the spray gun (8), a guide column (25) is slidably connected in the guide groove (24), a second interference rod (26) is connected to the guide column (25), and the second interference rod (26) is elastically connected to the second mounting block (28) through a fourth spring (27).

5. The excavator shovel tooth plastic spraying equipment according to claim 1, characterized in that: The teeth (18) and the tooth grooves (48) are engaged with each other, a second mounting column (29) is fixed on the base (6), the arc scraper (49) is inserted on the second mounting column (29), a limit block (34) is fixed on the second mounting column (29), an arc block (31) is fixed on the base (6), a track groove (32) is provided on the arc block (31), a guide rod (33) is fixed below the arc scraper (49), and the lower end of the guide rod (33) is against the arc block (31).

6. The excavator shovel tooth plastic spraying equipment according to claim 1, characterized in that: A conical cover (35) is provided above the adsorption cover (10), and a third interference rod (36) and a second interference wedge (37) are fixed on the annular brush plate (11), respectively. The third interference rod (36) is slidably connected to the conical cover (35) through a sixth spring (38), and a third mounting block (39) is fixed on the conical cover (35). A rocker bracket (40) is rotatably connected to the third mounting block (39), and a second torsion spring (41) is connected between the rocker bracket (40) and the third mounting block (39). A conflict strip (47) is fixed on the arc scraper (49).

7. The excavator shovel tooth plastic spraying equipment according to claim 1, characterized in that: A strip frame (42) is fixed on both sides of the base (6), a slide bar (43) is fixed on the strip frame (42), a strip block (71) is fixed on the cover shell (7), the strip block (71) is slidably connected to the slide bar (43), an adjustment component for adjusting the position of the strip block (71) is provided on the base (6), a first gear (44) is fixed on the first hollow rod (5), a servo motor (45) is fixed on the support plate (4), a second gear (46) is fixed on the motor shaft of the servo motor (45), and the second gear (46) and the first gear (44) are meshed with each other.

8. The excavator shovel tooth plastic spraying equipment according to claim 7, characterized in that: The adjustment assembly includes a bidirectional electric slide (61), which is fixed on the base (6). Two movable ends (62) are provided on the bidirectional electric slide (61), and a connecting rod (63) is hinged on the movable end (62). The other end of the connecting rod (63) is hinged on the bar block (71).

9. The excavator shovel tooth plastic spraying equipment according to claim 7, characterized in that: The adjustment assembly comprises a fixing plate (64), the fixing plate (64) is fixed on the base (6), and an electric push rod (65) is fixed on the fixing plate (64), and the piston rod of the electric push rod (65) is fixedly connected to the strip block (71).

10. A method for spraying plastic on excavator shovel teeth, characterized by: The specific steps include: Step 1: Pre-treat the workpiece to remove oil, dust and rust from the surface of the excavator teeth, and passivate them with phosphating solution to form a phosphating layer on the surface of the excavator teeth that is corrosion-resistant and can increase the adhesion of the powder coating; Step 2: Equipment adjustment: adjust the electrostatic discharge voltage and compressed air pressure at the front end of the spray gun (8), drive the excavator shovel teeth hooked on the hook (3) to move into the box (1) through the hanging rail (2) and to be directly above the base (6), and promote the two covers (7) to wrap the excavator shovel through the adjustment component; Step 3, spraying treatment, the servo motor (45) drives the base (6) and the spray gun (8) on the two cover shells (7) to deflect synchronously, and at the same time the second arc-shaped contact block (15) contacts the support plate (4), prompting the first contact rod (16) to contact the first contact wedge (30), so that the annular baffle (9) drives the V-shaped contact block (19) to deflect and contact the second contact rod (26), prompting the spray gun (8) to swing up and down to spray powder on the surface of the excavator shovel tooth, when the second arc-shaped contact block (15) deflects and contacts the first arc-shaped contact block (14), prompting the base (6) to move up and down as a whole, so that the spray gun (8) can achieve the purpose of spraying powder at multiple angles, reducing the dead angle of spraying of the excavator shovel tooth, and prompting the powder to be evenly attached to the surface of the excavator shovel tooth until the powder reaches a certain thickness, and then it stops adsorbing due to the electrostatic repulsion, and the excavator shovel tooth completes the powder spraying; Step 4: Powder recovery. The lower end of the first hollow rod (5) is connected to the adsorption device. When the spray gun (8) sprays powder, the suction generated by the adsorption device flows into the closed cover shell (7) through the adsorption cover (10), and the powder scattered on the surface of the base (6) can be adsorbed. When the annular baffle (9) is deflected, it can drive several arc scrapers (49) to rotate, and scrape the powder on the surface of the base (6) to the vicinity of the adsorption cover (10), thereby improving the adsorption cover (10) for powder recovery effect. At the same time, when the arc scraper (49) is deflected, it can prompt the annular brush plate (11) to move on the adsorption cover (10), and can clean the impurities blocked in the filter hole of the adsorption cover (10), thereby improving the powder adsorption effect. After the spraying is completed, the cover shell (7) is separated, and the hanging rail (2) drives the hook (3) to continue moving, and the excavator shovel teeth after the spraying are brought to the next process for processing.

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