Light-weight plasticized vehicle body spraying device and integral forming method

Abstract

The invention relates to the technical field of vehicle body forming, in particular to a light-weight plasticized vehicle body spraying device and an integral forming method, the light-weight plasticized vehicle body spraying device is used in cooperation with an operation table, and the light-weight plasticized vehicle body spraying device comprises a base, a frame body, an upper mold, a lower mold, a spray head, a hot pressing assembly, a spraying assembly and a direction adjusting assembly; the bottom of the lower mold is fixedly connected with the top of the base, the upper mold is installed on the frame body in a vertically movable mode, the spray head is installed on the operation table in a horizontally movable mode through the spraying assembly, the direction adjusting assembly is installed on the base and used for adjusting the direction of the spray head, and the hot pressing assembly is installed on the frame body. In order to enable the release agent to be evenly attached to the inner wall of the mold, the release agent can enter the corners of the inner wall of the complex mold in an inclined spraying mode, spraying is conducted from multiple angles in a reciprocating spraying mode, spraying dead angles are avoided, the spraying effect of the release agent is further improved, and the forming quality of the whole vehicle body is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle body molding, and in particular to a lightweight plasticized vehicle body spraying device and an integral molding method. Background Art

[0002] In the field of automobile manufacturing, there are many advantages to using plastic materials in car body production. For example, it can be lightweight, thereby reducing energy consumption and improving fuel efficiency; plastic has good corrosion resistance, which can increase the durability of the car body; and plastic has good formability, which can produce complex and diverse car body shapes.

[0003] When manufacturing lightweight plasticized car bodies, automobile production lines use a lot of hot pressing processes to produce the body shells. The principle is to heat the plastic sheet to a certain temperature to soften it, and then put it into the mold for pressure molding, which can make the plastic sheet form the required curved surface and other shapes for the car body. Since the overall molding of the plasticized car body is generally large in volume, it is necessary to spray a release agent into the mold before hot pressing to prevent the plastic from directly contacting the mold after hot pressing, which is easy to stick to the mold surface, resulting in difficulty in demolding and even damage to the product.

[0004] In the prior art lightweight plasticized car body integral forming method, most of them adopt the vertical spraying method, by setting a nozzle on the top of the mold to aim at the inside of the mold, and moving horizontally from one end of the top of the mold to the other end, and spraying the release agent at high speed during the movement, so that it falls and adheres to the inner wall of the mold. The advantages of this solution are convenient operation, high hot pressing efficiency, and help to improve the production efficiency of the automobile production line, but it is not convenient to adjust the spraying angle of the nozzle. Since the outer shell of the car body is mostly irregular in shape, the shape of the inner wall of the mold matching it is also relatively complex, which leads to the problem of uneven spraying when spraying the release agent through the above solution, which in turn affects the quality of hot pressing. Summary of the invention

[0005] The object of the present invention is to provide a lightweight plasticized car body spraying device and an integral molding method, which can adjust the spraying direction of the nozzle at multiple angles, make the release agent evenly adhere to the inner wall of the mold, and improve the quality of hot pressing molding.

[0006] To achieve this object, the present invention adopts the following technical solutions: Provided is a lightweight plasticized car body spraying device, which is used in conjunction with an operating table and includes a base, a frame, an upper mold, a lower mold, a nozzle, a hot pressing component, a spraying component and a direction adjustment component. The bottom of the frame is fixedly connected to the top of the base, the bottom of the lower mold is fixedly connected to the top of the base, the upper mold is vertically movably installed on the frame, the nozzle is horizontally movably installed on the operating table through the spraying component, the direction adjustment component is installed on the base, the direction adjustment component is used to adjust the direction of the nozzle, the hot pressing component is installed on the frame, the hot pressing component is used to drive the opening and closing of the mold, when the nozzle moves to one side of the base, the bottom of the nozzle tilts to one side under the action of the direction adjustment component, and when the nozzle moves to the other side of the base, the bottom of the nozzle tilts to the other side under the action of the direction adjustment component.

[0007] Preferably, the telescopic rod includes an outer shell, a slider and a pair of first tension springs, the top of the outer shell is rotatably connected to the periphery of the support rod, the top of the slider is slidably connected to the inner wall of the outer shell, one end of the first tension spring is fixedly connected to the inner wall of the outer shell, and the other end of the first tension spring is fixedly connected to the top of the slider.

[0008] Preferably, the direction adjustment assembly includes a support rod, a pair of limit plates, a pair of telescopic rods, a pair of blocks and two pairs of push rods. The support rod is used to drive the nozzle to move horizontally. The limit plate is fixedly connected to the periphery of the support rod. The bottom of the limit plate is an arc structure and has symmetrical slots on both sides. The telescopic rod can be vertically rotatably installed on the support rod. The bottom of the telescopic rod is fixedly connected to the top of the nozzle, the bottom of the block is fixedly connected to the top of the nozzle, the block is engaged with the slot, and the two pairs of push rods are symmetrically distributed on both sides of the frame. One side of the push rod is fixedly connected to the inner wall of the frame, and the other side of the push rod is in conflict with the nozzle.

[0009] Preferably, the hot pressing assembly also includes a support plate, multiple columns and a hydraulic cylinder, the bottom of the column is fixedly connected to the top of the base, the tops of the multiple columns are respectively fixedly connected to the four corners of the bottom of the support plate, the column passes through the upper mold and is slidably connected to it, the bottom of the hydraulic cylinder is fixedly connected to the top of the support plate, and the bottom of the telescopic rod of the hydraulic cylinder passes through the support plate and is fixedly connected to the top of the upper mold.

[0010] Preferably, the spray assembly also includes a solvent box, a water pipe, a high-pressure water pump and a hose. The bottom of the solvent box is fixedly connected to the bottom wall of the base, one end of the water pipe is connected to the bottom of the solvent box, and the other end of the water pipe is connected to the water inlet of the high-pressure water pump. The bottom of the high-pressure water pump is fixedly connected to the bottom wall of the base, the water outlet of the high-pressure water pump is connected to one end of the hose, and the other end of the hose passes through the side wall of the base and is connected to one end of the nozzle.

[0011] Preferably, the spray assembly also includes a pressure balancing mechanism, which includes an L-shaped partition, a piston, a pair of round rods and a pair of second tension springs. One end of the L-shaped partition is slidably connected to the bottom of the nozzle, and the top of the L-shaped partition is fitted with the bottom of the nozzle. The bottom wall of the nozzle and the bottom of the L-shaped partition are both provided with penetrating round holes. The piston is slidably connected to the inner wall of the end of the nozzle away from the hose, one end of the round rod is fixedly connected to the piston, and the other end of the round rod passes through the side wall of the nozzle and is fixedly connected to the L-shaped partition. The second tension spring is sleeved on the periphery of the round rod, one end of the second tension spring is fixedly connected to the nozzle, and the other end of the second tension spring is fixedly connected to the L-shaped partition. When the L-shaped partition is located at one end of the bottom of the nozzle, the round hole on the L-shaped partition is connected to the round hole on the nozzle, and when the L-shaped partition is located at the other end of the bottom of the nozzle, the round hole on the L-shaped partition is separated from the round hole on the nozzle.

[0012] Preferably, the pressure balancing mechanism also includes a rotating shaft, a rotating plate, a pair of torsion springs and a circular ring. The rotating shaft is fixedly connected to the top of the L-shaped partition, one end of the rotating plate is rotatably connected to the outer periphery of the rotating shaft, the torsion spring is sleeved on the outer periphery of the rotating shaft, one end of the torsion spring is fixedly connected to the L-shaped partition, and the other end of the torsion spring is fixedly connected to the rotating plate. A groove is provided on the top of the nozzle, and a protrusion at the bottom of the other end of the rotating plate is snap-fitted with the groove. The circular ring is slidably connected to the outer periphery of the support rod, and the bottom of the circular ring is slidably connected to the top of the rotating plate at one end away from the rotating shaft.

[0013] Preferably, the spray assembly also includes a pair of fixed blocks, a screw, a guide rod and a motor, the two fixed blocks are respectively fixedly connected to the two ends of the support rod, the screw is rotatably connected to the inner wall of the frame, the screw passes through one of the fixed blocks and is threadedly connected to it, the guide rod is fixedly connected to the inner wall of the frame, the guide rod passes through the other fixed block and is slidably connected to it, one side of the motor is fixedly connected to the frame, and the output shaft of the motor passes through the side wall of the frame and is coaxially connected to the screw.

[0014] Preferably, the operating table also includes a conveying table and a quality inspection table, the conveying table includes a first support frame, multiple support shafts and multiple rollers, the first support frame is fixedly connected to one side of the base, the support shaft is rotatably connected to the inner wall of the first support frame, and the roller is coaxially connected to the periphery of the support shaft, the quality inspection table includes a second support frame and a turntable, the second support frame is fixedly connected to the other side of the base, and the bottom of the turntable is rotatably connected to the top of the second support frame.

[0015] The present invention also provides an integral forming method of a lightweight plasticized car body spraying device, comprising the following steps: step one: a spraying assembly is arranged on an operating table, which can move horizontally back and forth to spray a release agent on the inner wall of a lower mold, and the nozzle is in an inclined state during the movement, so that the release agent can be sprayed to the corners of the inner wall of a complex mold; step two: by means of a direction adjustment assembly, the inclination direction of the nozzle can be changed in the gap of the reciprocating movement of the nozzle, and the reciprocating spraying method can be used to spray from multiple angles, so that dead corners of spraying can be avoided and the spraying effect of the release agent can be further improved; step three: a hot-pressed plate is placed on the operating table, and moved to the top of the lower mold through a conveyor table, and the upper mold is driven downward by the hot-pressing assembly to perform hot-pressing forming operations; step four: the car body shell is taken out after demolding, and it is moved to the quality inspection table, and it can be conveniently inspected from multiple angles by rotating the turntable.

[0016] Beneficial effects of the present invention: 1. When spraying the release agent, the nozzle of the present invention is in an inclined state, so that the support rod moves horizontally, driving the nozzle to move and spray the release agent, and spraying the lower mold in all directions. When the nozzle moves from one side to the other side, the direction of the nozzle is changed to make it inclined to the other side, and then the nozzle is moved in the opposite direction to reset, and the release agent is sprayed repeatedly. The release agent can enter the corners of the inner wall of the complex mold by the inclined spraying method, and the reciprocating spraying method is used to spray from multiple angles to avoid the occurrence of spraying dead corners, further improve the spraying effect of the release agent, and improve the overall molding quality of the car body.

[0017] 2. The present invention has a pressure balancing mechanism. When the release agent is injected into the nozzle through the hose, the release agent fills the end of the nozzle close to the hose, and the nozzle is in a sealed state. When the release agent completely fills the nozzle, the nozzle is opened, and the release agent is sprayed out through the circular hole under high pressure. At this time, the pressure at different positions inside the nozzle is the same. This avoids the problem of pressure imbalance at different positions inside the nozzle in the initial stage of spraying due to the nozzle being too long, and further improves the uniformity of spraying the release agent. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 The three-dimensional structure of the present invention is shown in FIG. Figure 1 .

[0020] Figure 2 The three-dimensional structure of the present invention is shown in FIG. Figure 2 .

[0021] Figure 3 The three-dimensional structure of the present invention is shown in FIG. Figure 3 .

[0022] Figure 4 It is a disassembled diagram of the operating table structure of the present invention.

[0023] Figure 5 It is a schematic diagram of the structure of the spraying assembly of the present invention.

[0024] Figure 6 It is a schematic diagram of the structure of the direction adjustment component of the present invention.

[0025] Figure 7 It is a disassembled diagram of the telescopic rod structure of the present invention.

[0026] Figure 8 yes Figure 2 A magnified view of the structure at center.

[0027] Fig. 9 It is a cross-sectional view of the nozzle structure of the present invention.

[0028] Fig.10 Fig. 9 A magnified view of the structure at center.

[0029] In the figure: 1. Operation table; 10. Base; 11. Frame; 110. Through slot; 12. Conveying table; 120. First supporting frame; 121. Support shaft; 122. Roller; 13. Quality inspection table; 130. Second supporting frame; 131. Turntable; 2. Hot pressing assembly; 20. Upper mold; 21. Lower mold; 22. Support plate; 23. Column; 24. Hydraulic cylinder; 3. Spraying assembly; 30. Nozzle; 300. Round hole; 301. Groove; 31. Solvent tank; 32. Water pipe; 33. High-pressure water pump; 34. Hose; 35. Pressure balancing mechanism; 350. L-shaped partition; 351. Piston; 352. Round rod; 353. Second tension spring; 354. Rotating shaft; 355. Rotating plate; 356. Torsion spring; 357. Ring; 36. Fixed block; 37. Screw; 38. Guide rod; 39. Motor; 4. Direction adjustment assembly; 40. Support rod; 41. Limit plate; 410. Card slot; 42. Telescopic rod; 420. Housing; 421. Slider; 422. First tension spring; 43. Card block; 44. Push rod. DETAILED DESCRIPTION

[0030] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0031] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on this patent; in order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0032] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0033] In the description of the present invention, unless otherwise clearly specified and limited, if the term "connection" or the like appears to indicate the connection relationship between components, the term should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two components or the interaction relationship between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] like Figures 1 to 10 As shown: A lightweight plasticized car body spraying device and an integral forming method are used in conjunction with an operating table 1, and include a base 10, a frame 11, an upper mold 20, a lower mold 21, a nozzle 30, a hot pressing assembly 2, a spray assembly 3, and a direction adjustment assembly 4. The bottom of the frame 11 is fixedly connected to the top of the base 10, and the bottom of the lower mold 21 is fixedly connected to the top of the base 10. The upper mold 20 is vertically movably installed on the frame 11, and the hot pressing plate is moved to the top of the lower mold 21, and then the upper mold 20 is lowered and fits with the lower mold 21, so as to perform hot pressing forming operations on the hot pressing plate. The nozzle 30 is horizontally movably installed on the operating table 1 through the spray assembly 3, so that the nozzle 30 moves horizontally back and forth, and at the same time, during the movement, the release agent is sprayed onto the inner wall surface of the lower mold 21 through the nozzle 30 to prevent the hot pressing parts of the car body shell 420 from adhering to the inner wall of the mold. The direction adjustment component 4 is installed on the base 10, and the direction adjustment component 4 is used to adjust the direction of the nozzle 30. The hot pressing component 2 is installed on the frame 11, and the hot pressing component 2 is used to drive the mold opening and closing operation. When the nozzle 30 moves to one side of the base 10, the bottom of the nozzle 30 tilts to one side under the action of the direction adjustment component 4. When the nozzle 30 moves to the other side of the base 10, the bottom of the nozzle 30 tilts to the other side under the action of the direction adjustment component 4. When spraying the release agent, the nozzle 30 is rotated to make the block 43 engage with the slot 410. At this time, the nozzle 30 is in an inclined state. Then, the support rod 40 is moved horizontally, driving the nozzle 30 to move and spray the release agent, and the lower mold 21 is sprayed in all directions. When the nozzle 30 moves from one side to the other, the nozzle 30 is pushed to rotate around the support rod 40, so that the block 43 rotates from one side of the bottom of the limit plate 41 to the other side. At the same time, the telescopic rod 42 is first stretched and then shortened, driving the block 43 to slide out of one of the slots 410 and engage with the other slot 410, thereby changing the direction of the nozzle 30 to tilt it to the other side, and then the nozzle 30 is moved in the opposite direction to reset, and the release agent is sprayed repeatedly. The release agent can enter the corner of the inner wall of the complex mold by the inclined spraying method, and the reciprocating spraying method is used to spray from multiple angles to avoid spraying dead corners, further improve the spraying effect of the release agent, and improve the overall molding quality of the car body.

[0035] like Figures 1 to 7 As shown: The telescopic rod 42 includes a housing 420, a slider 421, and a pair of first tension springs 422. The top of the housing 420 is rotatably connected to the periphery of the support rod 40. When the nozzle 30 rotates, the housing 420 is driven to rotate around the support rod 40, thereby achieving the effect of vertical rotation of the nozzle 30. The top of the slider 421 is slidably connected to the inner wall of the housing 420, one end of the first tension spring 422 is fixedly connected to the inner wall of the housing 420, and the other end of the first tension spring 422 is fixedly connected to the top of the slider 421. When the nozzle 30 moves horizontally, the block 43 is engaged with one of the slots 410. At this time, the first tension spring 422 is in a stretched state. The first tension spring 422 rebounds to drive the slider 421 to slide upward into the shell 420, thereby driving the nozzle 30 to rise, so that the block 43 and the inner wall of the slot 410 conflict with each other, preventing the nozzle 30 from rotating and keeping the spraying angle stable. When the nozzle 30 moves to one side of the operating table 1, the nozzle 30 is pushed, and the telescopic rod 42 rotates with the nozzle 30. During this process, the limit plate 41 pushes the block 43 downward, so that the slider 421 slides out of the shell 420, and the first tension spring 422 is further stretched. After the block 43 enters another slot 410, the first tension spring 422 rebounds to shorten the telescopic rod 42 to complete the repositioning, so that the nozzle 30 changes its angle.

[0036] like Figures 1 to 8 As shown: The direction adjustment assembly 4 includes a support rod 40, a pair of limit plates 41, a pair of telescopic rods 42, a pair of blocks 43 and two pairs of push rods 44. The support rod 40 is used to drive the nozzle 30 to move horizontally. The limit plate 41 is fixedly connected to the periphery of the support rod 40. The bottom of the limit plate 41 is an arc structure and has symmetrical grooves 410 on both sides. The telescopic rod 42 can be vertically rotatably installed on the support rod 40. The bottom of the telescopic rod 42 is fixedly connected to the top of the nozzle 30. The bottom of the block 43 is fixedly connected to the top of the nozzle 30. The block 43 is engaged with the groove 410. The two pairs of push rods 44 are symmetrically distributed on both sides of the frame 11. One side of the push rod 44 is fixedly connected to the inner wall of the frame 11, and the other side of the push rod 44 is in conflict with the nozzle 30. When the nozzle 30 moves to one side of the operating table 1, its bottom contacts the push rod 44. As the movement continues, the push rod 44 and the nozzle 30 contact each other and push the nozzle 30 to drive the telescopic rod 42 to rotate around the support rod 40, thereby completing the angle change.

[0037] like Figures 1 to 4 As shown: The hot pressing assembly 2 also includes a support plate 22, a plurality of columns 23 and a hydraulic cylinder 24. The bottom of the column 23 is fixedly connected to the top of the base 10, and the tops of the plurality of columns 23 are respectively fixedly connected to the four corners of the bottom of the support plate 22. The column 23 passes through the upper mold 20 and is slidably connected thereto. The bottom of the hydraulic cylinder 24 is fixedly connected to the top of the support plate 22. The bottom of the telescopic rod 42 of the hydraulic cylinder 24 passes through the support plate 22 and is fixedly connected to the top of the upper mold 20. When the hydraulic rod is working, its telescopic end drives the upper mold 20 to slide up and down along the column 23 to realize the opening and closing operation. The column 23 cooperates with the support plate 22 to support the hydraulic cylinder 24. When the upper mold 20 rises to the top, the support rod 40 can pass through its bottom to avoid the two from conflicting with each other and affecting the spraying of the release agent.

[0038] like Figures 1 to 3 As shown: The spraying assembly 3 also includes a solvent tank 31, a water pipe 32, a high-pressure water pump 33 and a hose 34. The bottom of the solvent tank 31 is fixedly connected to the bottom wall of the base 10, one end of the water pipe 32 is connected to the bottom of the solvent tank 31, and the other end of the water pipe 32 is connected to the water inlet of the high-pressure water pump 33. The bottom of the high-pressure water pump 33 is fixedly connected to the bottom wall of the base 10, and the water outlet of the high-pressure water pump 33 is connected to one end of the hose 34. The other end of the hose 34 passes through the side wall of the base 10 and is connected to one end of the nozzle 30. The solvent tank 31 is used to store the release agent, and the high-pressure water pump 33 is operated. The release agent in the solvent tank 31 is extracted through the water pipe 32 and injected into the nozzle 30 through the hose 34, and sprayed onto the inner wall surface of the lower mold 21 through the nozzle 30 to complete the spraying of the release agent. The high-pressure water pump 33 and the nozzle 30 are connected through the hose 34, and the spraying of different positions can be achieved following the movement of the nozzle 30.

[0039] like Figures 1 to 10 As shown: The spray assembly 3 also includes a pressure balancing mechanism 35, which includes an L-shaped partition 350, a piston 351, a pair of round rods 352 and a pair of second tension springs 353. One end of the L-shaped partition 350 is slidably connected to the bottom of the nozzle 30, and the top of the L-shaped partition 350 is in contact with the bottom of the nozzle 30. The bottom wall of the nozzle 30 and the bottom of the L-shaped partition 350 are both provided with a through circular hole 300. The piston 351 is slidably connected to the inner wall of one end of the nozzle 30 away from the hose 34. One end of the round rod 352 is fixedly connected to the piston 351, and the other end of the round rod 352 passes through the bottom wall of the nozzle 30. The side wall of the nozzle 30 is fixedly connected to the L-shaped partition 350, and the second tension spring 353 is sleeved on the outer periphery of the round rod 352. One end of the second tension spring 353 is fixedly connected to the nozzle 30, and the other end of the second tension spring 353 is fixedly connected to the L-shaped partition 350. When the mold release agent is injected into the nozzle 30 through the hose 34, the mold release agent fills the end of the nozzle 30 close to the hose 34. At this time, the L-shaped partition 350 is located at the bottom of the nozzle 30 close to the hose 34. The circular hole 300 at the bottom of the nozzle 30 is blocked by the L-shaped partition 350, so that the nozzle 30 is in a sealed state. As the mold release agent continues to be injected into the nozzle 30 and gradually fills the entire nozzle 30, the pressure in the nozzle 30 increases, pushing the piston 351 plate to slide toward the end away from the hose 34, and at the same time drives the L-shaped partition 350 to slide at the bottom of the nozzle 30 through the round rod 352, and the second tension spring 353 is stretched. When the release agent completely fills the nozzle 30, the L-shaped partition 350 moves to the circular hole 300 on it and communicates with the circular hole 300 on the nozzle 30, thereby opening the nozzle 30, and the release agent is sprayed out through the circular hole 300 under high pressure. At this time, the pressure at different positions inside the nozzle 30 is the same, thereby avoiding the problem of pressure imbalance at different positions inside the nozzle 30 in the initial stage of spraying due to the nozzle 30 being too long, and further improving the uniformity of spraying the release agent. When the L-shaped partition 350 is located at one end of the bottom of the nozzle 30, the circular hole 300 on the L-shaped partition 350 is connected with the circular hole 300 on the nozzle 30, and the nozzle 30 is opened at this time, so that the release agent can be sprayed out. When the L-shaped partition 350 is located at the other end of the bottom of the nozzle 30, the circular hole 300 on the L-shaped partition 350 is separated from the circular hole 300 on the nozzle 30. At this time, the nozzle 30 is closed to prevent one end of the nozzle 30 from spraying out the release agent first, which would cause unstable pressure and reduce the spraying effect.

[0040] like Figures 1 to 10 As shown: The pressure balancing mechanism 35 also includes a rotating shaft 354, a rotating plate 355, a pair of torsion springs 356 and a ring 357. The rotating shaft 354 is fixedly connected to the top of the L-shaped partition 350, one end of the rotating plate 355 is rotatably connected to the outer periphery of the rotating shaft 354, the torsion spring 356 is sleeved on the outer periphery of the rotating shaft 354, one end of the torsion spring 356 is fixedly connected to the L-shaped partition 350, and the other end of the torsion spring 356 is fixedly connected to the rotating plate 355. A groove 301 is provided at the top of the nozzle 30, and a protrusion at the bottom of the other end of the rotating plate 355 is snap-fitted with the groove 301. The ring 357 is slidably connected to the outer periphery of the support rod 40, and the bottom of the ring 357 is slidably connected to the top of one end of the rotating plate 355 away from the rotating shaft 354. When the nozzle 30 is in a closed state, the bottom of the rotating plate 355 and the top of the nozzle 30 are in conflict with each other, and the torsion spring 356 is in a twisted state. When the L-shaped partition 350 slides to open the nozzle 30, the rotating plate 355 follows the L-shaped partition 350 to slide on the top of the nozzle 30, and the torsion spring 356 rebounds to drive the protrusion at the bottom of one end of the rotating plate 355 to be stuck in the groove 301, and the ring 357 follows the rotating plate 355 to slide along the support rod 40, thereby fixing the position of the L-shaped partition 350 to prevent the piston 351 from moving during the spraying of the release agent, resulting in unstable pressure. When the nozzle 30 is rotated to change the angle, the telescopic rod 42 is lengthened, the distance between the nozzle 30 and the support rod 40 increases, and the rotating rod is pulled down by the ring 357 and rotates around the rotating shaft 354, so that the torsion spring 356 is twisted, and the protrusion at the bottom of the rotating plate 355 is disengaged from the groove 301, so that the L-shaped partition 350 can slide back to close the nozzle 30 after the spraying is completed.

[0041] like Figures 1 to 5 As shown: The spray assembly 3 also includes a pair of fixed blocks 36, a screw 37, a guide rod 38 and a motor 39. The two fixed blocks 36 are fixedly connected to the two ends of the support rod 40 respectively. The screw 37 is rotatably connected to the inner wall of the frame 11. The screw 37 passes through one of the fixed blocks 36 and is threadedly connected thereto. The guide rod 38 is fixedly connected to the inner wall of the frame 11. The guide rod 38 passes through the other fixed block 36 and is slidably connected thereto. One side of the motor 39 is fixedly connected to the frame 11. The output shaft of the motor 39 passes through the side wall of the frame 11 and is coaxially connected to the screw 37. When the motor 39 is powered on, its output shaft drives the screw 37 to rotate, and through the threaded transmission between the screw 37 and the fixed block 36, it drives it to move horizontally. At the same time, the other fixed block 36 slides horizontally along the guide rod 38. The two fixed blocks 36 support the support rod 40 and drive it to move horizontally.

[0042] like Figures 1 to 4 As shown: The operating table 1 also includes a conveying table 12 and a quality inspection table 13. The conveying table 12 includes a first support frame 120, a plurality of support shafts 121 and a plurality of rollers 122. The first support frame 120 is fixedly connected to one side of the base 10, the support shaft 121 is rotatably connected to the inner wall of the first support frame 120, and the roller 122 is coaxially connected to the outer periphery of the support shaft 121. The hot-pressed plate is placed on the top of the first support frame 120, and its bottom is in contact with the top of the roller 122. The hot-pressed plate is pushed, and the roller 122 rotates under the support of the support shaft 121, and the hot-pressed plate is moved to the top of the lower mold 21, thereby reducing the friction between the hot-pressed plate and the operating table 1, and facilitating the movement of the hot-pressed plate. The quality inspection table 13 includes a second support frame 130 and a turntable 131. The second support frame 130 is fixedly connected to the other side of the base 10, and the bottom of the turntable 131 is rotatably connected to the top of the second support frame 130. After the hot pressing is completed, the body shell 420 is taken out from the lower mold 21, moved to the turntable 131, and the body shell 420 is pushed to make the turntable 131 rotate on the top of the second support frame 130. At the same time, the body shell 420 is inspected to facilitate adjusting the position angle of the body shell 420 during quality inspection.

[0043] The present embodiment also provides an integral forming method of a lightweight plasticized car body spraying device, comprising the following steps: step 1: a spraying component 3 is arranged on the operating table 1, which can move horizontally back and forth to spray a release agent on the inner wall of the lower mold 21, and the nozzle 30 is in an inclined state during the movement, and the release agent can be sprayed to the corners of the inner wall of the complex mold; step 2: through the direction adjustment component 4, the inclination direction of the nozzle 30 can be changed in the gap of the reciprocating movement of the nozzle 30, and the reciprocating spraying method is used to spray from multiple angles, which can avoid the occurrence of spraying dead corners and further improve the spraying effect of the release agent; step 3: the hot pressing plate is placed on the operating table 1, and moved to the top of the lower mold 21 through the conveying table 12, and the upper mold 20 is driven downward by the hot pressing component 2 to perform hot pressing molding operations; step 4: after demolding, the car body shell 420 is taken out and moved to the quality inspection table 13, and it is rotated by the turntable 131, so that it can be conveniently inspected from multiple angles.

[0044] It should be noted that the above specific implementations are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art should understand that various modifications, equivalent substitutions, changes, etc. can be made to the present invention. However, as long as these changes do not deviate from the spirit of the present invention, they should be within the scope of protection of the present invention. In addition, some terms used in the specification and claims of this application are not limiting, but are only for the convenience of clearly describing the positional relationship and function between the various components.

Claims

1. A lightweight plasticized car body spraying device, used in conjunction with an operating table (1), characterized in that: The invention comprises a base (10), a frame (11), an upper mold (20), a lower mold (21), a nozzle (30), a hot pressing assembly (2), a spraying assembly (3) and a direction adjustment assembly (4), wherein the bottom of the frame (11) is fixedly connected to the top of the base (10), the bottom of the lower mold (21) is fixedly connected to the top of the base (10), the upper mold (20) is vertically movably mounted on the frame (11), the nozzle (30) is horizontally movably mounted on the operating table (1) through the spraying assembly (3), the direction adjustment assembly (4) is mounted on the base (10), the direction adjustment assembly (4) is used to adjust the direction of the nozzle (30), the hot pressing assembly (2) is mounted on the frame (11), and the hot pressing assembly (2) is used to drive the mold opening and closing operation; When the nozzle (30) moves toward one side of the base (10), the bottom of the nozzle (30) tilts toward one side under the action of the direction adjustment component (4); When the spray head (30) moves toward the other side of the base (10), the bottom of the spray head (30) tilts toward the other side under the action of the direction adjustment component (4).

2. A lightweight plasticized car body spraying device according to claim 1, characterized in that: The telescopic rod (42) comprises a housing (420), a slider (421) and a pair of first tension springs (422); the top of the housing (420) is rotatably connected to the periphery of the support rod (40); the top of the slider (421) is slidably connected to the inner wall of the housing (420); one end of the first tension spring (422) is fixedly connected to the inner wall of the housing (420); and the other end of the first tension spring (422) is fixedly connected to the top of the slider (421).

3. A lightweight plasticized car body spraying device according to claim 1, characterized in that: The direction adjustment component (4) comprises a support rod (40), a pair of limit plates (41), a pair of telescopic rods (42), a pair of clamping blocks (43) and two pairs of push rods (44); the support rod (40) is used to drive the spray head (30) to move horizontally; the limit plates (41) are fixedly connected to the periphery of the support rod (40); the bottom of the limit plates (41) is an arc-shaped structure and has clamping grooves (410) symmetrically opened on both sides; the telescopic rod (42) is vertically rotatably mounted on the support rod (40); the bottom of the telescopic rod (42) is fixedly connected to the top of the spray head (30); the bottom of the clamping block (43) is fixedly connected to the top of the spray head (30); the clamping block (43) is clamped and matched with the clamping groove (410); the two pairs of push rods (44) are symmetrically distributed on both sides of the frame (11); one side of the push rod (44) is fixedly connected to the inner wall of the frame (11); and the other side of the push rod (44) contacts the spray head (30).

4. A lightweight plasticized car body spraying device according to claim 1, characterized in that: The hot pressing assembly (2) further comprises a support plate (22), a plurality of columns (23) and a hydraulic cylinder (24); the bottom of the column (23) is fixedly connected to the top of the base (10); the tops of the plurality of columns (23) are respectively fixedly connected to the four corners of the bottom of the support plate (22); the column (23) passes through the upper mold (20) and is slidably connected thereto; the bottom of the hydraulic cylinder (24) is fixedly connected to the top of the support plate (22); and the bottom of the telescopic rod (42) of the hydraulic cylinder (24) passes through the support plate (22) and is fixedly connected to the top of the upper mold (20).

5. The lightweight plasticized car body spraying device according to claim 1, characterized in that: The spray assembly (3) further comprises a solvent box (31), a water pipe (32), a high-pressure water pump (33) and a hose (34); the bottom of the solvent box (31) is fixedly connected to the bottom wall of the base (10); one end of the water pipe (32) is in communication with the bottom of the solvent box (31); the other end of the water pipe (32) is in communication with a water inlet of the high-pressure water pump (33); the bottom of the high-pressure water pump (33) is fixedly connected to the bottom wall of the base (10); the water outlet of the high-pressure water pump (33) is in communication with one end of the hose (34); the other end of the hose (34) passes through the side wall of the base (10) and is in communication with one end of the spray head (30).

6. A lightweight plasticized car body spraying device according to claim 5, characterized in that: The spray assembly (3) further comprises a pressure balancing mechanism (35), the pressure balancing mechanism (35) comprising an L-shaped partition (350), a piston (351), a pair of round rods (352) and a pair of second tension springs (353), one end of the L-shaped partition (350) being slidably connected to the bottom of the spray head (30), the top of the L-shaped partition (350) being in contact with the bottom of the spray head (30), the bottom wall of the spray head (30) and the bottom of the L-shaped partition (350) both being provided with a through round hole (300), the piston (351) being provided with a pair of round rods (352) and a pair of second tension springs (353), the L-shaped partition (350) being slidably connected to the bottom of the spray head (30), the top of the L-shaped partition (350) being in contact with the bottom of the spray head (30), the bottom wall of the spray head (30) and the bottom of the L-shaped partition (350) being provided with a through round hole (300), the piston (351) being provided with a pair of round rods (352) and a pair of second tension springs (353), the L-shaped partition (350) being slidably connected to the bottom of the spray head (30), the top of the L-shaped partition (350) being in contact with the bottom of the spray head (30), the top of the L-shaped partition (350 ... 51) is slidably connected to the inner wall of one end of the nozzle (30) away from the hose (34), one end of the round rod (352) is fixedly connected to the piston (351), the other end of the round rod (352) passes through the side wall of the nozzle (30) and is fixedly connected to the L-shaped partition (350), the second tension spring (353) is sleeved on the outer periphery of the round rod (352), one end of the second tension spring (353) is fixedly connected to the nozzle (30), and the other end of the second tension spring (353) is fixedly connected to the L-shaped partition (350); When the L-shaped partition (350) is located at one end of the bottom of the spray head (30), the circular hole (300) on the L-shaped partition (350) is in communication with the circular hole (300) on the spray head (30); When the L-shaped partition (350) is located at the other end of the bottom of the spray head (30), the circular hole (300) on the L-shaped partition (350) is separated from the circular hole (300) on the spray head (30).

7. A lightweight plasticized car body spraying device according to claim 6, characterized in that: The pressure balancing mechanism (35) further comprises a rotating shaft (354), a rotating plate (355), a pair of torsion springs (356) and a circular ring (357); the rotating shaft (354) is fixedly connected to the top of the L-shaped partition (350); one end of the rotating plate (355) is rotatably connected to the periphery of the rotating shaft (354); the torsion spring (356) is sleeved on the periphery of the rotating shaft (354); one end of the torsion spring (356) is fixedly connected to the L-shaped partition (350); the other end of the torsion spring (356) is fixedly connected to the rotating plate (355); a groove (301) is provided on the top of the nozzle (30); a protrusion at the bottom of the other end of the rotating plate (355) is snap-fitted with the groove (301); the circular ring (357) is slidably connected to the periphery of the support rod (40); and the bottom of the circular ring (357) is slidably connected to the top of one end of the rotating plate (355) away from the rotating shaft (354).

8. A lightweight plasticized car body spraying device according to claim 7, characterized in that: The spraying assembly (3) further comprises a pair of fixed blocks (36), a screw rod (37), a guide rod (38) and a motor (39), wherein the two fixed blocks (36) are respectively fixedly connected to the two ends of the support rod (40), the screw rod (37) is rotatably connected to the inner wall of the frame (11), the screw rod (37) passes through one of the fixed blocks (36) and is threadedly connected thereto, the guide rod (38) is fixedly connected to the inner wall of the frame (11), the guide rod (38) passes through the other fixed block (36) and is slidably connected thereto, one side of the motor (39) is fixedly connected to the frame (11), and the output shaft of the motor (39) passes through the side wall of the frame (11) and is coaxially connected to the screw rod (37).

9. A lightweight plasticized car body spraying device according to claim 1, characterized in that: The operating table (1) also includes a conveying table (12) and a quality inspection table (13); the conveying table (12) includes a first support frame (120), a plurality of support shafts (121) and a plurality of rollers (122); the first support frame (120) is fixedly connected to one side of the base (10); the support shaft (121) is rotatably connected to the inner wall of the first support frame (120); the roller (122) is coaxially connected to the outer periphery of the support shaft (121); the quality inspection table (13) includes a second support frame (130) and a turntable (131); the second support frame (130) is fixedly connected to the other side of the base (10); and the bottom of the turntable (131) is rotatably connected to the top of the second support frame (130).

10. An integral forming method of a lightweight plasticized vehicle body spraying device, characterized in that: The method comprises the lightweight plasticized vehicle body spraying device as claimed in any one of claims 1 to 9, and the following steps: Step 1: A spraying assembly (3) is provided on the operating table (1), which can move horizontally and reciprocatingly to spray a mold release agent on the inner wall of the lower mold (21), and the spray head (30) is in an inclined state during the movement, so that the mold release agent can be sprayed to the corners of the inner wall of the complex mold; Step 2: By providing a direction adjustment component (4), the inclination direction of the nozzle (30) can be changed in the gap of the reciprocating movement of the nozzle (30), and spraying can be performed from multiple angles in a reciprocating spraying manner, thereby avoiding the occurrence of spraying dead angles and further improving the spraying effect of the release agent; Step three: placing the hot pressing plate on the operating table (1), and moving it to the top of the lower mold (21) through the conveying table (12), and driving the upper mold (20) to move downward through the hot pressing assembly (2), so as to perform hot pressing molding operation; Step 4: After demoulding, the body shell (420) is taken out and moved to the quality inspection table (13). By rotating it on the turntable (131), it can be conveniently inspected from multiple angles.

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