A spraying device for automobile bumper production

Abstract

The application belongs to the technical field of medical apparatus and instruments, and specifically relates to a spraying equipment for automobile bumper production, which comprises a bottom plate, four partition plates are symmetrically arranged on the upper end face of the bottom plate in a rectangular distribution, two supporting plates are symmetrically arranged on each partition plate, an adjusting unit is arranged on each supporting plate, a control unit coordinated with the adjusting unit is arranged on each supporting plate located at the rear side of the bottom plate, a spraying unit is arranged on the adjusting unit located at the rear side of the bottom plate, and a cleaning unit is arranged on each adjusting unit located at the front side of the bottom plate; the movable block drives the concave block thereon to complete complete annular motion, then the extrusion degree between the convex block and the extrusion rod is used to control the variable control of the annular column on the communication position of the feeding pipe and the spray head, so that the discharging amount and the discharging speed of the spray head during spraying at different positions are influenced, and the spraying uniformity of the product is improved to a certain extent.

Description

Technical Field

[0001] This invention belongs to the field of automotive machinery technology, specifically relating to a spraying equipment for automotive bumper production. Background Technology

[0002] Modern manufacturing processes require bumpers to maintain their original protective function while achieving harmony and unity with the vehicle's design, and at the same time, to be lightweight. Therefore, modern car bumpers are generally made of plastic.

[0003] Car bumpers require processes such as base treatment, primer spraying, water sanding, drying, puttying, and secondary painting to be manufactured.

[0004] However, existing car bumper painting typically involves a robotic arm driving a single spray nozzle to paint the bumper surface, which is transported to a designated location via a conveyor, following a specific trajectory. Firstly, as the spray nozzle adjusts its angle, position, and trajectory to adapt to the irregular shape of the bumper, these adjustments overlap multiple times. This results in uneven spraying across the front and rear areas of the bumper surface, affecting the painting quality and increasing costs for the company.

[0005] Secondly, when the robotic arm adjusts the nozzle angle and position, the height between the nozzle and the surface of the car bumper at different positions changes, but the output amount and output speed do not change accordingly. The variable relationship between the two is non-linear, which directly affects the direct spraying effect of the nozzle on different positions of the car bumper, resulting in uneven coating on the surface of the car bumper. Summary of the Invention

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a spraying equipment for automobile bumper production, comprising a base plate, wherein four partition plates are rectangularly distributed on the upper surface of the base plate, two support plates are symmetrically arranged on each partition plate, and an adjustment unit is provided on each support plate. A control unit that coordinates with the adjustment unit is provided on each support plate located on the rear side of the base plate, and a spraying unit is provided on the adjustment unit located on the rear side of the base plate, while a cleaning unit is provided on each adjustment unit located on the front side of the base plate.

[0007] The adjustment unit includes:

[0008] A trapezoidal plate is fixedly installed at one end near the partition plate along the diagonal of the support plate.

[0009] An electric telescopic rod is fixedly installed on the end face of the trapezoidal plate away from the corresponding position partition plate, and each of the support plates has a sliding groove along its diagonal;

[0010] The sliding block is slidingly installed in the sliding groove and is fixedly connected with the electric telescopic rod away from the trapezoidal plate;

[0011] The first sector plate is fixedly installed at the middle position of the side end face of the sliding block away from the sliding groove, and the first sector plate has a hollow structure penetrating through both sides.

[0012] The second sector plate is symmetrically distributed based on the middle line of the first sector plate and is slidingly installed in the first sector plate; the side end face of the first sector plate and the side end face of the second sector plate away from the sliding groove are both provided with an arc-shaped groove.

[0013] The movable block is slidingly installed in the arc-shaped groove.

[0014] Preferably, the control unit comprises:

[0015] The L-shaped clamping plate is fixedly installed on each support plate located at the rear side of the bottom plate, and each L-shaped clamping plate is arranged close to the partition plate at the corresponding position.

[0016] The right-angled trapezoidal plate is fixedly installed at the end of the horizontal segment of the L-shaped clamping plate away from the support plate at the corresponding position; the end face of the right-angled trapezoidal plate close to the sliding groove is provided with an inclined groove.

[0017] The connecting plate is fixedly installed in the inclined groove, and the end of the connecting plate close to the first sector plate does not protrude into the region of the first sector plate.

[0018] The rack is fixedly installed at the side end face of the connecting plate close to the first sector plate, and the length of the rack is the same as the length of the connecting plate.

[0019] The concave block is fixedly installed at the side end face of the movable block close to the rack.

[0020] Preferably, the two ends of the concave surface opposite to each other in the concave block are both rotatably installed with connecting rods, one end of each connecting rod is rotatably installed with a T-shaped column penetrating through the concave block, the T-shaped column is fixedly connected with the concave block through bolts and nuts, the outer wall of the connecting rod close to the partition plate is installed with a gear meshing with the rack, a belt pulley is installed at the middle position of the outer wall of the connecting rod, the two belt pulleys are driven through a belt, and the two ends of the connecting rod away from the partition plate are installed with chucks rotatably matched with the concave surface in the concave block.

[0021] Preferably, the spraying unit comprises:

[0022] The convex block is fixedly installed at the outer wall of the two ends of the connecting rod away from the partition plate.

[0023] The circular ring is rotatably installed at the side end face of the chuck close to the middle position of the connecting rod.

[0024] The hollow column is fixedly installed at the side outer wall of the circular ring and is in communication with the inner wall of the circular ring.

[0025] The annular gasket is fixedly installed on the inner wall of the lower end of the hollow column;

[0026] The extrusion rod is slidingly installed on the inner wall of the hollow column and slidingly matched with the annular gasket, and the extrusion rod is composed of a T-shaped shaft end and a ball end.

[0027] The annular column is fixedly installed on the outer wall of the lower end of the T-shaped shaft end of the extrusion rod.

[0028] The spray head is fixedly installed on the shaft end of the annular column away from the connecting rod.

[0029] The outer wall of the lower end of the spray head is provided with a displacement sensor, and the outer wall of the spray head is provided with a feeding pipe matched with the annular column, and the outer wall of the spray head is provided with an external connecting pipe.

[0030] Preferably, the cleaning unit comprises:

[0031] The T-shaped seat is fixedly installed on the side end face of each movable block away from the sliding groove on the front side of the bottom plate.

[0032] The gas storage tank is embeddedly installed on the middle position of the side end face of the T-shaped seat away from the sliding groove.

[0033] The gas jet nozzle is fixedly installed on one end of the gas storage tank close to the inner wall of the first fan-shaped plate.

[0034] The cleaning plate is fixedly installed on one end of the T-shaped seat close to the inner wall of the first fan-shaped plate by means of bolts, and is symmetrically arranged based on the center line of the T-shaped seat.

[0035] The flexible brush is uniformly distributed and fixedly installed on the arc-shaped end face of the cleaning plate on one side close to the inner wall of the first fan-shaped plate.

[0036] The sandpaper is uniformly distributed and fixedly installed on the arc-shaped end face of the cleaning plate on the other side close to the inner wall of the first fan-shaped plate, and the sandpaper is columnar.

[0037] Preferably, one end of each of the second fan-shaped plates close to the middle position of the first fan-shaped plate is symmetrically provided with an arc-shaped column, and the number of the arc-shaped columns is two, the outer wall of the arc-shaped column is sleeved with a return spring, one end of the return spring close to the arc-shaped column is fixedly connected with the outer wall of the arc-shaped column, and the other end of the return spring away from the arc-shaped column is movably connected with the arc-shaped column, the first fan-shaped plate is symmetrically provided with a baffle in the inner portion of the first fan-shaped plate based on the center line, each support plate is symmetrically provided with a positioning plate based on the diagonal line of the support plate, and each second fan-shaped plate is provided with an arc-shaped block on the side end face close to the support plate.

[0038] Preferably, each movable block is provided with a clamping block on the side end face close to the sliding groove, the first and second sector plates are provided with clamping grooves on the side end face away from the sliding groove, the clamping grooves of the first sector plate are in communication with the hollow structure inside the first sector plate, and the first sector plate is provided with an opening groove on the side end face close to the sliding groove.

[0039] Preferably, the contact position surface between the positioning ball column and the positioning plate is rough, the arc-shaped columns are symmetrically distributed, the diameter of one side is smaller than that of the other side, and the arc-shaped column on one side can extend into the arc-shaped column on the other side, the length of the movable block is greater than the maximum interval distance between the adjacent second sector plates after extending out of the area of the first sector plate, and the length of the movable block is greater than the maximum interval distance between the adjacent first sector plates when the second sector plate is completely inside the first sector plate.

[0040] Preferably, the concave block is provided with a bottom wall penetrating through at the end close to the inner wall of the first sector plate.

[0041] Preferably, the lower end of the outer wall of the spray head is provided with a displacement sensor, the outer wall of the spray head is provided with an inlet pipe above the displacement sensor and in communication with the annular column, and the outer wall of the spray head is provided with an external connecting pipe at the middle position.

[0042] The present application has the following advantages:

[0043] 1、The sliding block controlled by the electric telescopic rod is used for adjusting the position of the first sector plate in real time according to the shape of the product, then the concave block drives the spraying unit on the concave block to move synchronously with the movable block, so that the spraying unit sprays the automobile bumper in a circular track, and the automobile bumper to be processed is conveyed through the middle position of the area surrounded by the four first sector plates at a constant speed by using the suspension type conveying mechanism, the surface of the automobile bumper to be processed is uniformly sprayed through the constant speed relative movement between the spraying unit and the product, the problem of uneven spraying and waste of paint caused by the multiple cross movement of the traditional mechanical arm is avoided, the cost of enterprises is reduced to a certain extent, the uniformity of spraying on the surface of the automobile bumper is improved, the appearance of the product is improved, and the corrosion resistance of the product after forming is improved.

[0044] 2、The present application makes the different degree contact extrusion between the different positions on the convex wheel and the extrusion rod, so that the annular column controls the variable degree of the communication quantity between the feed pipe and the nozzle, that is, according to the distance change between the nozzle and the surface of the bumper to be processed, and according to the external calculation result, the paint quantity entering the nozzle from the feed pipe is controlled, and different degrees of air pressure are applied to the paint in the nozzle through the external air pump, so that the paint speed sprayed by the nozzle changes correspondingly, and finally the distance between the nozzle and the surface of the product to be processed, the discharge quantity and the discharge speed are changed coordinately, the spraying uniformity of the nozzle under the annular motion trajectory to the surface of the product is improved.

[0045] 3、The present application moves the positioning ball in the direction of the trapezoidal plate corresponding to the position of the first sector plate, and the positioning ball is in contact with the positioning plate, and then the positioning ball is subjected to the reverse force from the positioning plate, so that the arc block drives the two second sector plates in the first sector plate to slide under the guidance of the opening slot, that is, the second sector plate will make corresponding expansion and contraction movement synchronously when the first sector plate moves, thereby reducing the distance between the two first sector plates moving in opposite directions.

[0046] 4、The present application blows the product surface after the joint action of the water sand paper and the flexible brush through the air nozzle, further reduces the probability of burrs or pollutants on the product surface, improves the uniform spraying and spraying quality of the product surface by the later spraying unit, strengthens the smoothness of the product surface after spraying, and further enhances the beauty of the final product forming. BRIEF DESCRIPTION OF DRAWINGS

[0047] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0048] Figure 2 It is an enlarged schematic diagram of the partial structure of the present application. Figure 1 It is a sectional view of the front half part.

[0049] Figure 3 It is an enlarged schematic diagram of the partial structure of the present application. Figure 2 It is an enlarged schematic diagram of the partial structure of the present application.

[0050] Figure 4 It is a schematic diagram of the partial structure of the adjusting unit of the present application.

[0051] Figure 5 It is a schematic diagram of the partial structure of the adjusting unit of the present application.

[0052] Figure 6 It is a schematic diagram of the partial structure of the control unit and the spraying unit of the present application.

[0053] Figure 7 It is an enlarged schematic diagram of the partial structure of the present application. Figure 6 It is an enlarged schematic diagram of the partial structure of the present application.

[0054] Figure 8 is a schematic view of the local structure at C in the present application Figure 6 is a schematic view of the local structure at C in the present application

[0055] Figure 9 is a schematic view of the local structure at C in the present application

[0056] Figure 10 is a schematic view of the local structure at C in the present application

[0057] Figure 11 is a schematic view of the local structure at C in the present application

[0058] Figure 1 is a schematic view of the local structure at C in the present application

[0059] 11, partition plate; 12, support plate

[0060] 21, trapezoidal plate; 22, electric telescopic rod; 23, sliding groove; 24, sliding block; 25, first sector plate; 26, second sector plate; 27, arc-shaped groove; 28, movable block

[0061] 31, L-shaped clamping plate; 32, right-angled trapezoidal plate; 33, inclined groove; 34, connecting plate; 35, rack; 36, concave block

[0062] 361, connecting rod; 362, T-shaped column; 363, gear; 364, pulley; 365, chuck

[0063] 41, convex block; 42, circular ring; 43, hollow column; 44, annular gasket; 45, extrusion rod; 46, telescopic spring; 47, annular column; 48, spray head

[0064] 51, T-shaped seat; 52, gas storage tank; 53, gas nozzle; 54, cleaning plate; 55, flexible brush; 56, water sandpaper

[0065] 481, displacement sensor; 482, feeding pipe; 483, external connecting pipe

[0066] 281, clamping block; 282, clamping groove; 283, open groove

[0067] 261, arc-shaped column; 262, reset spring; 263, baffle; 264, positioning plate; 265, arc-shaped block; 266, positioning spherical column DETAILED DESCRIPTION

[0068] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below with reference to the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and do not limit the present application.

[0069] It should be noted that the terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for illustrative purposes and do not represent the only implementation.

[0070] The specific implementation of the present application is described in detail below in combination with specific examples.

[0071] Referring to Figure 1 , Figure 2 and Figure 8 , the spraying equipment for automobile bumper production comprises a bottom plate 1, four partition plates 11 are distributed in a rectangular shape on the upper end face of the bottom plate 1, two supporting plates 12 are symmetrically arranged on each partition plate 11, an adjusting unit 2 is arranged on each supporting plate 12, a control unit 3 coordinated with the adjusting unit 2 is arranged on each supporting plate 12 located at the rear side of the bottom plate 1, a spraying unit 4 is arranged on the adjusting unit 2 located at the rear side of the bottom plate 1, and a cleaning unit 5 is arranged on each adjusting unit 2 located at the front side of the bottom plate 1.

[0072] Referring to Figure 1 , Figure 2 , Figure 3 and Figure 4 , the trapezoidal plate 21 is fixedly installed along the diagonal line of the supporting plate 12 at one end close to the partition plate 11; the electric telescopic rod 22 is fixedly installed at the end face of the side away from the corresponding position partition plate 11 of the trapezoidal plate 21; the sliding groove 23 is formed along the diagonal line of each supporting plate 12; the sliding block 24 is slidingly installed in the sliding groove 23 and is fixedly connected with the electric telescopic rod 22 away from one end of the trapezoidal plate 21; the first sector plate 25 is fixedly installed at the middle position of the side end face of the sliding block 24 away from the sliding groove 23, and the first sector plate 25 has a hollow structure with through holes on both sides; the second sector plate 26 is symmetrically distributed based on the center line of the first sector plate 25 and is slidingly installed in the first sector plate 25; the arc-shaped grooves 27 are formed in the side end faces of the first sector plate 25 and the second sector plate 26 away from the sliding groove 23; and the movable block 28 is slidingly installed in the arc-shaped grooves 27.

[0073] In the specific implementation process, the distance (scientific and safe distance) between the two partition plates 11 for carrying the cleaning unit 5 and the spraying unit 4 is controlled to prevent the metal residues and pollutants (in the case of short distance between the cleaning unit 5 and the spraying unit 4) under the action of air flow when the cleaning unit 5 is used to remove burrs and pollutants in the early stage of product pretreatment from affecting the spraying of the spraying unit 4 unnecessarily.

[0074] When the cleaning unit 5 or the spraying unit 4 starts to work:

[0075] The electric telescopic rod 22 in the telescopic direction is limited by the trapezoidal plate 21 (after being powered on, and the telescopic amount is controlled by the external PLC control system), the sliding block 24 drives the first sector plate 25 (synchronously moving four first sector plates 25 bearing the cleaning unit 5 or the spraying unit 4 to move in opposite directions or in the same direction) to move synchronously (the sliding groove 23 provides stable support and guidance for the sliding block 24 in the movement process), and then the second sector plate 26 inside the first sector plate 25 in the initial state moves synchronously to the designated position with the first sector plate 25, and finally the movable block 28 is provided with stable movement guidance through the arc-shaped groove 27. Specifically, the movable block 28 can be driven to slide in the arc-shaped groove 27 by an electric sliding block.

[0076] Referring to Figure 4 and Figure 5 It can be known that each second sector plate 26 is symmetrically provided with an arc-shaped column 261 at one end close to the middle position of the first sector plate 25, and the number is two. The outer wall of the arc-shaped column 261 is sleeved with a return spring 262, one end of the return spring 262 close to the second sector plate 26 is fixedly connected with the outer wall of the arc-shaped column 261, and the other end away from the second sector plate 26 is movably connected with the arc-shaped column 261. The first sector plate 25 is symmetrically provided with a baffle 263 slidably connected with the corresponding position arc-shaped column 261 inside the first sector plate 25 with the center line as the reference. Each side end face of the support plate 12 close to the first sector plate 25 is symmetrically provided with a positioning plate 264 with the diagonal line as the reference. Each side end face of the second sector plate 26 close to the support plate 12 is installed with an arc-shaped block 265, and the arc-shaped block 265 is symmetrically provided with a positioning ball column 266 close to one end of the positioning plate 264.

[0077] Referring to Figure 3 , Figure 5 and Figure 9 It can be known that each movable block 28 is installed with a clamping block 281 close to one side end face of the sliding groove 23. The side end face of the first sector plate 25 and the second sector plate 26 away from the sliding groove 23 is provided with a clamping groove 282 matched with the clamping block 281 and overlapping with the track, and the clamping groove 282 on the first sector plate 25 is communicated with the hollow structure inside the first sector plate 25. The side end face of the first sector plate 25 close to the sliding groove 23 is provided with an open groove 283 matched with the arc-shaped block 265.

[0078] Referring to Figure 2It can be seen that the contact position surface between the positioning ball column 266 and the positioning plate 264 is rough, the arc-shaped columns 261 are symmetrically distributed, the diameter of one side is smaller than that of the other side, and the arc-shaped column on one side can extend into the interior of the arc-shaped column on the other side, and the length of the movable block 28 is greater than the maximum interval distance between the adjacent second sector plates 26 after extending into the area of the first sector plate 25, and the length of the movable block 28 is greater than the maximum interval distance between the adjacent first sector plates 25 when the second sector plate 26 is completely inside the first sector plate 25.

[0079] When the second sector plate 26 moves synchronously with the first sector plate 25 in the opposite direction:

[0080] Through the contact and extrusion between the positioning ball column 266 and the positioning plate 264, the arc-shaped block 265 subjected to the reverse force of the positioning ball column 266 drives the second sector plate 26 at the corresponding position to gradually slide out of the interior of the first sector plate 25 under the guidance of the opening slot 283, so that the second sector plate 26 extending into the interior of the first sector plate 25 reduces the distance between the adjacent first sector plates 25 after moving in the opposite direction, and at the same time, the sliding track of the movable block 28 in the arc-shaped slot 27 is extended (since the first sector plate 25 is a part of structure cut from a complete circular ring, when the first sector plate 25 moves in the opposite direction, the distance between the adjacent first sector plates 25 gradually increases until it exceeds the length of the movable block 28), that is, the movable block 28 is prevented from sliding along the arc-shaped slot 27 on one side of the second sector plate 26 (the tracks of the arc-shaped slots 27 in the first sector plate 25 and the second sector plate 26 coincide);

[0081] When the second sector plate 26 moves synchronously with the first sector plate 25 in the opposite direction:

[0082] The second sector plate 26 extending into the area of the first sector plate 25 gradually moves into the interior of the first sector plate 25 (in this process, the sliding of the second sector plate 26 is guided by the first sector plate 25 and the baffle 263 inside it), until the arc-shaped column on one side completely enters the interior of the arc-shaped column on the other side (to prevent the two second sector plates 26 inside the same first sector plate 25 from colliding during the movement in the opposite direction, thereby affecting the restoration of the two second sector plates 26 to the initial position), and at the same time, since the first sector plates 25 move in the opposite direction, the movement tracks of the movable blocks 28 are not affected during the movement of the second sector plate 26 into the interior of the first sector plate 25;

[0083] Through the mutual cooperation between the clamping block 281 and the clamping slot 282, the perfect transition of the movable block 28 from the first sector plate 25 to the second sector plate 26 is realized.

[0084] Referring to Figure 1 and Figure 3It can be known that the control unit 3 comprises: L-shaped clamping plates 31 fixedly installed on each support plate 12 at the rear side of the bottom plate 1, and each L-shaped clamping plate 31 is arranged close to the corresponding position of the partition plate 11; right-angled trapezoidal plates 32 fixedly installed at one end of the horizontal section of the L-shaped clamping plate 31 away from the corresponding position of the support plate 12; the end face of the right-angled trapezoidal plate 32 close to the chute 23 is provided with an inclined groove 33; a connecting plate 34 is fixedly installed in the inclined groove 33, and one end of the connecting plate 34 close to the first sector plate 25 does not protrude into the area of the first sector plate 25; a rack 35 is fixedly installed at the side end face of the connecting plate 34 close to the first sector plate 25, and the length of the rack 35 is the same as the length of the connecting plate 34; a concave block 36 is fixedly installed at the side end face of the movable block 28 close to the rack 35;

[0085] Referring to Figure 1 , Figure 6 and Figure 7 It can be known that the two ends of the concave surface opposite to each other in the concave block 36 are rotatably installed with connecting rods 361, one end of the connecting rod 361 is rotatably installed with a T-shaped column 362 penetrating through the concave block 36, and the T-shaped column 362 is fixedly connected with the concave block 36 through a bolt and a nut, the outer wall of the connecting rod 361 close to one end of the partition plate 11 is installed with a gear 363 engaged with the rack 35, a belt pulley 364 is installed at the middle position of the outer wall of the connecting rod 361, and the two belt pulleys 364 are driven by a belt, and the two ends of the connecting rod 361 away from one end of the partition plate 11 are installed with chuck 365 rotatably matched with the concave surface in the concave block 36;

[0086] Referring to Figure 6 , Figure 7 and Figure 9 It can be known that the spraying unit 4 comprises: convex blocks 41 fixedly installed at the outer walls of the two ends of the connecting rod 361 away from one end of the partition plate 11; a circular ring 42 is rotatably installed at the side end face of the chuck 365 close to the middle position of the connecting rod 361; a hollow column 43 is fixedly installed at the side outer wall of the circular ring 42, and is in communication with the inner wall of the circular ring 42; a ring gasket 44 is fixedly installed at the inner wall of the lower end of the hollow column 43; an extrusion rod 45 is slidably installed in the inner wall of the hollow column 43 and is slidably installed between the ring gasket 44, and the extrusion rod 45 is composed of a T-shaped shaft end and a ball end; the T-shaped shaft end of the extrusion rod 45 is sleeved with a telescopic spring 46 fixedly connected with the ring gasket 44 at the side end face close to the ball end of the extrusion rod 45; a ring column 47 is fixedly installed at the lower end of the T-shaped shaft end of the extrusion rod 45; a spray head 48 is fixedly installed at one end of the shaft end of the ring column 47 away from the connecting rod 361;

[0087] Referring to Figure 1 and Figure 8 It can be known that one end of the concave block 36 close to the inner wall of the first sector plate 25 protrudes into the area of the first sector plate 25, and the bottom wall of the one end of the concave block 36 close to the inner wall of the first sector plate 25 is in a through state;

[0088] Referring to Figure 6 and Figure 8 It can be seen that the lower end outer wall of the spray head 48 is provided with a displacement sensor 481, and the outer wall of the spray head 48 is provided with a feed pipe 482 matched with the annular column 47, and the outer wall of the spray head 48 is provided with an external connecting pipe 483 at the middle position.

[0089] When the first sector plate 25 moves towards or away from the second sector plate 26:

[0090] First, by setting the right-angled trapezoidal plate 32 at the end of the horizontal section of the L-shaped clamping plate 31, a sufficient safety distance is reserved between the right-angled trapezoidal plate 32 and the vertical section of the L-shaped clamping plate 31, so as to avoid collision between the concave block 36 and the right-angled trapezoidal plate 32 during movement, and then by setting the inclined chute 33, the rack 35 and the gear 363 can be completely in meshing state;

[0091] Then, by relative movement between the gear 363 in movement and the rack 35 with fixed position, the belt pulley 364 is driven by the gear 363 and through the transmission of the belt, so that the connecting rod 361 on the other side drives the convex block 41 (the degree of extrusion between the convex block 41 in the initial state and the ball end of the extrusion rod 45 is the lowest) on the other side to rotate synchronously (the angle is determined by the interaction degree between the gear 363 and the rack 35);

[0092] The ball end of the extrusion rod 45 is firstly contacted with the convex block 41 and extruded during the rotation of the convex block 41 (the circular ring 42 and the connecting rod 361 are arranged into a different shaft mechanism through the chuck 365, and then the relative movement between the convex block 41 and the hollow column 43 fixed by the circular ring 42 is facilitated), the extrusion rod 45 is subjected to a reverse force during the movement towards the nozzle 48, and the extrusion rod 45 extrudes the extension spring 46 between the annular gasket 44 and the extrusion rod 45 to different degrees (the extension spring 46 resets the extrusion rod 45 during the repeated action between the extrusion rod 45 and the convex block 41), and then the annular column 47 controls the variable of the communication amount of the nozzle 48 under the action of the shaft end of the extrusion rod 45 (that is, different degrees of plugging are performed), at the same time, the displacement sensor 481 calculates the distance between the nozzle 48 and the product surface at different positions, and then the displacement sensor 481 transmits the received signal to the external PLC control system, the external PLC control system performs scientific calculation, controls the external air pump to inject different degrees of air pressure into the nozzle 48, so that the speed of the paint sprayed through the nozzle 48 changes correspondingly, and finally realizes the coordination and unity of the discharge amount, the discharge speed (determined by the air pressure) and the distance between the nozzle 48 and the product (determined by the electromotive force extension rod) (influencing the range and impact effect of the straight spraying of the nozzle 48, reducing the splashing angle of the straight spraying of the nozzle 48, thereby improving the uniformity of the spraying of the nozzle 48 to different areas of the product to a certain extent);

[0093] Finally, by removing the T-shaped column 362 fixed by the bolt and the nut, the connecting rod 361 between the concave blocks 36 can be completely taken down, thereby facilitating the maintenance and replacement of the spraying unit 4 in the later stage;

[0094] Referring to Figure 2 and Figure 3 It can be seen that the cleaning unit 5 comprises: a T-shaped seat 51 fixedly installed on each movable block 28 on the front side of the bottom plate 1 away from the side end face of the chute 23; a gas storage tank 52 embeddedly installed at the middle position of the side end face of the T-shaped seat 51 away from the chute 23; a gas nozzle 53 fixedly installed at one end of the gas storage tank 52 close to the inner wall of the first fan-shaped plate 25; a cleaning plate 54 fixedly installed on one end of the T-shaped seat 51 close to the inner wall of the first fan-shaped plate 25, and symmetrically arranged based on the center line of the T-shaped seat 51; a flexible brush 55 uniformly distributed and fixedly installed on the arc-shaped end face of the one side cleaning plate 54 close to the inner wall of the first fan-shaped plate 25; and a water sandpaper 56 uniformly distributed and fixedly installed on the arc-shaped end face of the other side cleaning plate 54 close to the inner wall of the first fan-shaped plate 25, and the water sandpaper 56 is columnar.

[0095] The metal burrs and contaminants existing on the surface of the product are initially polished and polished by the water sand paper 56 extending the inner wall of the first sector plate 25, and then the metal burrs and contaminants removed by the water sand paper 56 are cleaned by the flexible brush 55, and finally the gas in the gas tank 52 is sprayed to the product surface cleaned by the water sand paper 56 and the flexible brush 55, which can be pumped into the air nozzle 53 by the external air pump, further improving the cleanliness and smoothness of the product surface, and facilitating the uniform spraying of the spraying unit 4 without affecting the molding, which is beneficial to improve the product molding quality.

[0096] The working principle of the spraying equipment for automobile bumper production provided by the application is as follows: first, the sliding block 24 is controlled by the electric telescopic rod 22 to drive the first sector plate 25 and the second sector plate 26 in it to move towards or away from each other under the guidance of the sliding groove 23; in this process, the interaction between the positioning ball column 266 and the positioning plate 264 makes the second sector plate 26 move towards or away from the first sector plate 25.

[0097] Secondly, the interaction between the gear 363 and the rack 35 makes the connecting rod 361 drive the convex block 41 on it to contact and extrude the extrusion rod 45 in the hollow column 43 fixed by the circular ring 42 to different degrees, and then the annular column 47 controls the variable of the communication position between the spray head 48 and the feeding pipe 482 after being subjected to the force, thereby controlling the amount of paint entering the spray head 48 (referring to Figure 11 ) through the feeding pipe 482;

[0098] Thirdly, the water sand paper 56 is used to initially polish and polish the metal burrs and contaminants existing on the surface of the product, and then the flexible brush 55 is used to clean the metal burrs and contaminants removed by the water sand paper 56, and finally the gas in the gas tank 52 is sprayed to the product surface cleaned by the water sand paper 56 and the flexible brush 55.

[0099] The circuit and control involved in the application are prior art, and will not be described in detail here.

[0100] The above is only an embodiment of the application, and does not limit the patent scope of the application, and any equivalent structure or equivalent process transformation using the content of the application specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the application.

Claims

1. A spraying equipment for automobile bumper production, characterized in that: The utility model relates to a kind of spray painting device, including bottom plate (1), the bottom plate (1) upper end face is rectangular distribution with four partition plates (11), each partition plate (11) is symmetrically provided with two support plates (12), each support plate (12) is provided with adjusting unit (2), each support plate (12) located at the rear side of bottom plate (1) is provided with control unit (3) coordinated with adjusting unit (2), and adjusting unit (2) located at the rear side of bottom plate (1) is provided with spraying unit (4), and each adjusting unit (2) located at the front side of bottom plate (1) is provided with cleaning unit (5); The adjusting unit (2) comprises: A trapezoidal plate (21) is fixedly installed at one end near the partition plate (11) along the diagonal line of the support plate (12). An electric telescopic rod (22) is fixedly installed at the side end face of the trapezoidal plate (21) away from the corresponding position partition plate (11), and a sliding groove (23) is formed along the diagonal line of each support plate (12). A sliding block (24) is slidingly installed in the sliding groove (23) and fixedly connected with the electric telescopic rod (22) away from one end of the trapezoidal plate (21). A first sector plate (25) is fixedly installed at the middle position of the side end face of the sliding block (24) away from the sliding groove (23), and the first sector plate (25) has a hollow structure with through holes on both sides. A second sector plate (26) is symmetrically distributed based on the center line of the first sector plate (25) and slidingly installed in the first sector plate (25); the side end face of the first sector plate (25) and the second sector plate (26) away from the sliding groove (23) is provided with an arc-shaped groove (27). A movable block (28) is slidingly installed in the arc-shaped groove (27). The control unit (3) comprises: An L-shaped clamping plate (31) is fixedly installed on each support plate (12) located at the rear side of the bottom plate (1), and each L-shaped clamping plate (31) is arranged near the partition plate (11) at the corresponding position. A right trapezoidal plate (32) is fixedly installed at one end of the horizontal section of the L-shaped clamping plate (31) away from the corresponding position support plate (12); the end face of the right trapezoidal plate (32) near the sliding groove (23) is provided with an inclined groove (33). A connecting plate (34) is fixedly installed in the inclined groove (33), and the end of the connecting plate (34) near the first sector plate (25) does not protrude into the area of the first sector plate (25). A rack (35) is fixedly installed at the side end face of the connecting plate (34) near the first sector plate (25), and the length of the rack (35) is the same as the length of the connecting plate (34). A concave block (36) is fixedly installed at the side end face of the movable block (28) near the rack (35). Both ends of the concave surface opposite face of the concave block (36) are rotatably installed with connecting rods (361), one end of the connecting rod (361) is rotatably installed with a T-shaped column (362) penetrating the concave block (36), and the T-shaped column (362) is fixedly connected between the concave block (36) through bolts and nuts, the outer wall of the connecting rod (361) near one end of the partition plate (11) is installed with a gear (363) engaged with the rack (35), the outer wall of the connecting rod (361) is installed with a belt pulley (364) at the middle position, and the two belt pulleys (364) are driven by a belt, and the two ends of the connecting rod (361) away from one end of the partition plate (11) are installed with chuck (365) rotatably matched with the inner concave surface of the concave block (36); The spraying unit (4) comprises: The convex block (41) is fixedly installed on the outer wall of both ends of the connecting rod (361) away from one end of the partition plate (11); The circular ring (42) is rotatably installed on one side end face of the chuck (365) near the middle position of the connecting rod (361); The hollow column (43) is fixedly installed on one side outer wall of the circular ring (42) and is in communication with the inner wall of the circular ring (42); The annular gasket (44) is fixedly installed on the inner wall of the lower end of the hollow column (43); The extrusion rod (45) is slidably installed on the inner wall of the hollow column (43) and is slidably installed between the annular gasket (44), and the extrusion rod (45) is composed of a T-shaped shaft end and a ball end; The annular column (47) is fixedly installed on the lower end of the T-shaped shaft end of the extrusion rod (45); The nozzle (48) is fixedly installed on one end of the annular column (47) away from the connecting rod (361).

2. The spraying apparatus for producing an automobile bumper according to claim 1, characterized by: The cleaning unit (5) comprises: The T-shaped seat (51) is fixedly installed on the side end face of each movable block (28) away from the chute (23) on the front side of the bottom plate (1); The gas storage tank (52) is embeddedly installed on the side end face of the T-shaped seat (51) away from the chute (23) at the middle position; The air jet nozzle (53) is fixedly installed on one end of the gas storage tank (52) near the inner wall of the first sector plate (25); The cleaning plate (54) is fixedly installed on one end of the T-shaped seat (51) near the inner wall of the first sector plate (25) through bolts, and is symmetrically arranged based on the center line of the T-shaped seat (51); The flexible brush (55) is uniformly distributed and fixedly installed on the arc-shaped end face of one side cleaning plate (54) near the inner wall of the first sector plate (25); The sandpaper (56) is uniformly distributed and fixedly installed on the arc-shaped end face of the other side cleaning plate (54) near the inner wall of the first sector plate (25), and the sandpaper (56) is columnar.

3. The spraying apparatus for producing an automobile bumper according to claim 1, characterized in that: Each of the second fan-shaped plates (26) is symmetrically provided with an arc-shaped column (261) at one end near the middle position of the first fan-shaped plate (25), and the number of the arc-shaped columns (261) is two, the outer wall of the arc-shaped column (261) is sleeved with a return spring (262), one end of the return spring (262) near the second fan-shaped plate (26) is fixedly connected with the outer wall of the arc-shaped column (261), and the other end away from the second fan-shaped plate (26) is movably connected with the arc-shaped column (261), the first fan-shaped plate (25) is symmetrically provided with a baffle (263) slidably connected with the corresponding position arc-shaped column (261) inside the first fan-shaped plate (25) with the center line as the reference, each support plate (12) is symmetrically provided with a positioning plate (264) on one side end face near the first fan-shaped plate (25) with the diagonal line as the reference, and each second fan-shaped plate (26) is provided with an arc-shaped block (265) on one side end face near the support plate (12), and the arc-shaped block (265) is symmetrically provided with a positioning spherical column (266) at one end near the positioning plate (264).

4. The spraying apparatus for producing an automobile bumper according to claim 1, characterized in that: Each movable block (28) is provided with a clamping block (281) on one side end face near the sliding groove (23), and the first fan-shaped plate (25) and the second fan-shaped plate (26) are provided with clamping grooves (282) on one side end face away from the sliding groove (23), the clamping grooves (282) are matched with the clamping blocks (281) and the trajectories overlap, the clamping grooves (282) on the first fan-shaped plate (25) are communicated with the hollow structure inside the first fan-shaped plate (25), and the first fan-shaped plate (25) is provided with an open slot (283) matched with the arc-shaped block (265) on one side end face near the sliding groove (23).

5. The spraying apparatus for producing an automobile bumper according to claim 3, wherein: The contact position surface between the positioning spherical column (266) and the positioning plate (264) is rough, the arc-shaped columns (261) are symmetrically distributed, one side diameter is smaller than the other side diameter, and one side arc-shaped column (261) can extend into the other side arc-shaped column (261), the length of the movable block (28) is greater than the maximum interval distance between the adjacent second fan-shaped plates (26) after the second fan-shaped plates (26) extend out of the first fan-shaped plate (25) region, and the length of the movable block (28) is greater than the maximum interval distance between the adjacent first fan-shaped plates (25) when the second fan-shaped plate (26) is completely inside the first fan-shaped plate (25).

6. The spraying apparatus for producing an automobile bumper according to claim 1, wherein: The recessed block (36) exceeds the region of the first fan-shaped plate (25) at one end near the inner wall of the first fan-shaped plate (25), and the bottom wall of the recessed block (36) at one end near the inner wall of the first fan-shaped plate (25) is in a through state.

7. The spraying apparatus for producing an automobile bumper according to claim 1, wherein: The lower end outer wall of the spray head (48) is provided with a displacement sensor (481), the outer wall of the spray head (48) is provided with a feeding pipe (482) matched with the annular column (47) at the upper position, and the outer wall of the spray head (48) is provided with an external connecting pipe (483) at the middle position.

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