An automated spray conveyor line and positioning device

Abstract

The utility model relates to spraying conveying line positioning technical field especially for a kind of automatic spraying conveying line and positioning device, including workbench, the inside of workbench is provided with conveyer, the top of workbench is fixedly connected with spraying mechanism, the outside of spraying is provided with automatic clamping mechanism, the spraying mechanism includes portal frame, the top of portal frame is fixedly connected with spraying box, the top of spraying box is fixedly connected with extraction pump, the bottom of extraction pump is fixedly connected with spraying plate, in the utility model, the bidirectional screw rod of dynamic clamping mechanism and symmetrical sleeve ring design, cooperate motor drive, can drive both sides positioning plate synchronous close or far away, realize the self-adapting clamping of different size workpieces, the rubber plate of positioning plate outside can increase the friction force with workpiece, prevent workpiece from sliding in conveying and spraying process, can also avoid rigid contact to cause damage to workpiece surface.

Description

Technical Field

[0001] This utility model relates to the field of positioning technology for spray coating conveyor lines, specifically to an automated spray coating conveyor line and positioning device. Background Technology

[0002] In the manufacturing sector, the surface coating process of products is of paramount importance. It not only affects the appearance and texture of products, but also has a profound impact on their corrosion resistance, durability and other properties. Traditional spraying operations mostly rely on manual operation, with workers holding spray guns to spray the workpieces. With the booming development of the manufacturing industry, the requirements for spraying efficiency and quality are becoming increasingly stringent, and automated spraying technology has emerged.

[0003] While early automated spraying equipment achieved partial mechanization of processes, such as simple reciprocating or rotary spraying with spray guns, it had significant shortcomings in workpiece positioning and clamping. At that time, fixed fixtures were mostly used, which could only accommodate workpieces of specific sizes and shapes. Once the product specifications changed, a lot of time and manpower were required to replace the fixtures and adjust the equipment parameters, which severely restricted the flexibility and continuity of production. Moreover, during the clamping process, these fixed fixtures often caused damage such as indentations and scratches on the workpiece surface due to improper force control, affecting the appearance quality of the product. This was especially true for some workpieces with fragile surface materials and extremely high appearance requirements, such as the housings of precision electronic components and high-end furniture parts, where the drawbacks of traditional clamping methods became increasingly apparent.

[0004] Therefore, an automated spraying conveyor line and positioning device are proposed to address the above problems. Utility Model Content

[0005] The purpose of this invention is to provide an automated spraying conveyor line and positioning device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An automated spraying conveyor line and positioning device includes a workbench, a conveyor is installed inside the workbench, a spraying mechanism is fixedly connected to the top of the workbench, and an automatic clamping mechanism is installed on the outside of the spraying mechanism.

[0008] The spraying mechanism includes a gantry frame, a spraying box is fixedly connected to the top of the gantry frame, an extraction pump is fixedly connected to the top of the spraying box, a spraying plate is fixedly connected to the bottom of the extraction pump, and an electrical control box is fixedly connected to the outside of the gantry frame.

[0009] The automatic clamping mechanism includes a connecting plate, a motor is fixedly connected to the outer side of the connecting plate, a bidirectional lead screw is fixedly connected to the output end of the motor, a collar is threaded to the outer side of the bidirectional lead screw, a connecting rod is fixedly connected to the bottom of the collar, a clamping plate positioning plate is fixedly connected to the bottom of the connecting rod, and a rubber plate is fixedly connected to the outer side of the positioning plate.

[0010] As a further optimization of this utility model, the top of the collar is fixedly connected to a limit rod, the outer side of the gantry is fixedly connected to a top plate, the top plate has a moving groove inside, a disassembly mechanism is provided between the connecting rod and the positioning plate, the disassembly mechanism includes a positioning hole, the top of the positioning plate is fixedly connected to an installation groove, the outer side of the installation groove is fixedly connected to a movable tube, the inside of the movable tube is movably connected to a snap-fit ​​rod, and a compression spring is sleeved on the snap-fit ​​rod.

[0011] As a further optimization of this utility model, the gantry frame is fixedly connected to the top rib of the workbench, and the spraying plate is located between the gantry frame and the conveyor.

[0012] As a further optimization of this utility model, the connecting plates are fixed and symmetrically distributed on the outside of the gantry frame, and the bidirectional screw is rotatably connected between the two connecting plates.

[0013] As a further optimization of this utility model, the collars are symmetrically distributed on the outside of the bidirectional lead screw, and the positioning plate and the rubber plate are symmetrically distributed on the top of the conveyor.

[0014] As a further optimization of this utility model, the top of the limiting rod is slidably connected to the top of the moving groove, and the positioning hole is located in the bottom side wall of the connecting rod.

[0015] As a further optimization of this utility model, the bottom of the connecting rod is located inside the mounting groove, and one end of the snap-fit ​​rod is located inside the positioning hole.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] (I) In this utility model, the bidirectional lead screw and symmetrical collar design of the automatic clamping mechanism, combined with the motor drive, can drive the positioning plates on both sides to move closer or further away synchronously, realizing adaptive clamping of workpieces of different sizes. The rubber plate on the outside of the positioning plate can increase the friction with the workpiece, prevent the workpiece from sliding during transportation and spraying, and avoid damage to the workpiece surface caused by rigid contact. In addition, the sliding cooperation between the limiting rod and the moving groove of the top plate can limit the movement direction of the collar, ensuring that the positioning plate always moves in a direction parallel to the conveyor, further improving the positioning accuracy, ensuring accurate spraying position, and reducing paint waste.

[0018] (II) In this utility model, the design of the disassembly mechanism solves the problem of replacing and maintaining the positioning plate: when it is necessary to replace the positioning plate of different specifications, or to inspect the positioning plate or rubber plate, simply pull the snap-fit ​​rod to disengage it from the positioning hole of the connecting rod, and the positioning plate can be removed from the mounting slot. During installation, the compression spring can push the snap-fit ​​rod to automatically snap into the positioning hole, achieving quick fixation. This design requires no complicated tools, greatly shortens the equipment maintenance and adjustment time, and enables the device to adapt to more workpieces of different shapes and sizes, improving the applicability and flexibility of the equipment. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the outer structure of the spraying mechanism of this utility model;

[0021] Figure 3 This is a schematic diagram of the outer side of the automatic clamping mechanism of this utility model;

[0022] Figure 4 This is a schematic diagram of the outer structure of the disassembly mechanism of this utility model;

[0023] Figure 5 This utility model Figure 4 Enlarged view of the structure at point A in the middle.

[0024] In the diagram: 1. Workbench; 2. Conveyor; 3. Spraying mechanism; 31. Gantry; 32. Spraying box; 33. Extraction pump; 34. Spraying plate; 4. Automatic clamping mechanism; 41. Connecting plate; 42. Motor; 43. Two-way lead screw; 44. Collar; 45. Connecting rod; 46. Positioning plate; 47. Rubber plate; 48. Top plate; 49. Moving groove; 410. Limiting rod; 5. Disassembly mechanism; 51. Positioning hole; 52. Mounting groove; 53. Movable tube; 54. Snap-fit ​​rod; 55. Compression spring; 6. Electrical control box. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0027] Please see Figures 1-5 This utility model provides a technical solution:

[0028] An automated spraying conveyor line and positioning device includes a workbench 1, a conveyor 2 is installed inside the workbench 1, a spraying mechanism 3 is fixedly connected to the top of the workbench 1, and an automatic clamping mechanism 4 is installed on the outside of the spraying mechanism 3.

[0029] The spraying mechanism 3 includes a gantry frame 31, a spraying box 32 is fixedly connected to the top of the gantry frame 31, a pump 33 is fixedly connected to the top of the spraying box 32, a spraying plate 34 is fixedly connected to the bottom of the pump 33, and an electrical control box 6 is fixedly connected to the outside of the gantry frame 31.

[0030] The automatic clamping mechanism 4 includes a connecting plate 41, a motor 42 fixedly connected to the outer side of the connecting plate 41, a bidirectional lead screw 43 fixedly connected to the output end of the motor 42, a collar 44 threadedly connected to the outer side of the bidirectional lead screw 43, a connecting rod 45 fixedly connected to the bottom of the collar 44, a clamping plate positioning plate 46 fixedly connected to the bottom of the connecting rod 45, and a rubber plate 47 fixedly connected to the outer side of the positioning plate 46.

[0031] It should be noted that: the gantry 31 is fixedly connected to the top of the workbench 1, the spraying plate 34 is located between the gantry 31 and the conveyor 2, the connecting plate 41 is fixed and symmetrically distributed on the outside of the gantry 31, the double-acting screw 43 is rotatably connected between the two connecting plates 41, the collar 44 is symmetrically distributed on the outside of the double-acting screw 43, and the positioning plate 46 and the rubber plate 47 are symmetrically distributed on the top of the conveyor 2.

[0032] Furthermore, the gantry frame 31, fixed to the top of the workbench 1, must simultaneously support the spraying box 32, the extraction pump 33, and the automatic clamping mechanism 4. Its structural design must balance "lightweight" and "load-bearing capacity." From an extended design perspective, the crossbeams and columns of the gantry frame 31 are made of aluminum alloy profiles. The length of the crossbeams must cover the width of the conveyor 2 to ensure that the spraying plate 34 can completely cover the workpiece spraying area. The connection between the columns and the workbench 1 must be reinforced with stiffeners and double-fixed to the workbench 1 surface with bolts to prevent the gantry frame 31 from shaking during the operation of the extraction pump 33 or the clamping mechanism. In addition, an installation interface for the electrical control box 6 must be reserved on the outside of the gantry frame 31, and insulating rubber rings must be installed on the inner wall of the wiring holes to prevent the insulation layer from being damaged due to friction between the wires and the metal frame, thus improving electrical safety.

[0033] Specifically: the bidirectional lead screw 43, as the core transmission component of the automatic clamping mechanism 4, must have a thread accuracy of C7 grade to ensure that the collar 44 moves on the bidirectional lead screw 43 without jamming or offset. Deep groove ball bearings must be installed at both ends of the bidirectional lead screw 43 and fixed to the connecting plate 41 through bearing seats to reduce the frictional resistance when the bidirectional lead screw 43 rotates and extend its service life. The inner wall of the collar 44 must be provided with an internal thread that matches the lead screw, and the connection between the collar 44 and the connecting rod 45 must be reinforced by welding bolts to prevent the collar 44 from falling off when it drives the connecting rod 45 to move. The limiting rod 410 at the top of the collar 44 must be precisely matched with the moving groove 49 to ensure that the limiting rod 410 slides smoothly in the moving groove 49, while restricting the collar 44 to move only in the horizontal direction to prevent the collar 44 from rotating with the bidirectional lead screw 43.

[0034] As a further implementation of this solution, a limit rod 410 is fixedly connected to the top of the collar 44, a top plate 48 is fixedly connected to the outside of the gantry 31, a moving groove 49 is opened inside the top plate 48, a disassembly mechanism 5 is provided between the connecting rod 45 and the positioning plate 46, the disassembly mechanism 5 includes a positioning hole 51, an installation groove 52 is fixedly connected to the top of the positioning plate 46, a movable tube 53 is fixedly connected to the outside of the installation groove 52, a snap-fit ​​rod 54 is movably connected inside the movable tube 53, and a compression spring 55 is sleeved on the snap-fit ​​rod 54.

[0035] It should be noted that: the top of the limiting rod 410 is slidably connected to the top of the moving groove 49, the positioning hole 51 is located in the bottom side wall of the connecting rod 45, the bottom of the connecting rod 45 is located inside the mounting groove 52, and one end of the snap-fit ​​rod 54 is located inside the positioning hole 51.

[0036] Furthermore, the disassembly mechanism 5, as the connecting component between the positioning plate 46 and the connecting rod 45, has the core requirements of "quick disassembly and assembly" and "firm connection". From an extended perspective, the depth of the mounting groove 52 needs to be 5-10mm deeper than the bottom insertion length of the connecting rod 45 to ensure that the connecting rod 45 can be fully inserted into the mounting groove 52 and avoid loosening of the connection. The connection between the movable tube 53 and the mounting groove 52 needs to be threaded to facilitate replacement when the movable tube 53 is damaged. One end of the snap-fit ​​rod 54 needs to be rounded to reduce the resistance when inserted into the positioning hole 51.

[0037] Specifically: an annular groove needs to be provided on the outer side of the locking rod 54, and one end of the compression spring 55 is embedded in the groove to prevent the spring from shifting during the extension and retraction process. The compression spring 55 needs to be made of stainless steel to avoid rusting due to long-term contact with air or paint moisture. The elastic coefficient of the spring needs to be adapted to the locking force to ensure that the locking rod 54 can be stably locked into the positioning hole 51, and the operator does not need to exert too much force when pulling the locking rod 54.

[0038] Work process: Before operation, the operator initializes the equipment through the electrical control box 6, sets the conveying speed of the conveyor 2 to match the spraying efficiency, and presets the clamping stroke of the automatic clamping mechanism 4 according to the size of the workpiece to be sprayed. It is also necessary to check the paint storage in the spray box 32, the standby status of the extraction pump 33, and the assembly firmness of the positioning plate 46 and the rubber plate 47 in the disassembly mechanism 5, and ensure that the snap-fit ​​rod 54 has been snapped into the positioning hole 51.

[0039] After the equipment is started, the conveyor 2 installed inside the workbench 1 starts to run at a constant speed. The operator places the workpiece to be sprayed on the conveyor surface of the conveyor 2. The workpiece moves synchronously with the transmission roller and is conveyed to the spraying mechanism 3 area. It can accurately enter the subsequent work station without manual intervention.

[0040] When the workpiece moves to the area directly below the spray plate 34, the position sensor built into the electrical control box 6 detects and triggers the clamping action, and the automatic clamping mechanism 4 starts. The motor 42 fixed to the outside of the connecting plate 41 drives the bidirectional lead screw 43 to rotate. Since the threads of the left and right sections of the bidirectional lead screw 43 rotate in opposite directions, the symmetrically fitted collars 44 on the outside move closer to the workpiece along the axis of the lead screw. The limiting rod 410 on the top of the collar 44 slides in the moving groove 49 of the top plate 48 to limit the direction of movement. The collar 44 drives the positioning plate 46 to move closer to the workpiece through the connecting rod 45 until the rubber plate 47 on the outside of the positioning plate 46 is tightly attached to the side wall of the workpiece. The rubber plate 47 increases the friction through elastic deformation to prevent the workpiece from shifting, and avoids rigid contact that could scratch the workpiece, thus achieving precise fixation.

[0041] After the workpiece is fixed, the electrical control box 6 triggers the spraying mechanism 3 to start. The extraction pump 33 fixed at the top of the spraying box 32 generates negative pressure to extract the paint. After pressurization, it is transported to the spraying plate 34 at the bottom. The paint is sprayed onto the workpiece surface in the form of atomization or columnar spray through the spraying holes. At this time, the conveyor 2 temporarily stops or moves at low speed. With precise positioning, the coating thickness is ensured to be uniform and the range is accurate. The gantry 31 also provides stable support for the spraying plate 34.

[0042] When the workpiece is sprayed, each component is reset in sequence. The motor 42 rotates in the opposite direction, driving the bidirectional lead screw 43 to rotate in the opposite direction, so that the collar 44, connecting rod 45, positioning plate 46 and rubber plate 47 are away from the workpiece to release the clamp. The conveyor 2 resumes operation and transports the sprayed workpiece to the next process. At the same time, it transports new workpieces to the workstation. The extraction pump 33 stops working and waits for the next signal to realize continuous batch operation.

[0043] If it is necessary to replace the positioning plate 46 of different specifications or to repair the rubber plate 47, pull the snap-fit ​​rod 54 outward. Since it is movably connected to the movable tube 53 outside the mounting groove 52, the mounting groove 52 is fixed to the top of the positioning plate 46. After compressing the spring 55, the snap-fit ​​rod 54 is disengaged from the positioning hole 51 at the bottom of the connecting rod 45, and the positioning plate 46 can be taken out. When installing, align the mounting groove 52 of the new positioning plate 46 with the connecting rod 45 and insert it. After releasing the snap-fit ​​rod 54, the spring pushes it to reset and snap into the positioning hole 51. The operation can be completed quickly without additional tools, which greatly shortens the maintenance time.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automated spraying conveyor line and positioning device, comprising a workbench (1), characterized in that: The workbench (1) is equipped with a conveyor (2), and a spraying mechanism (3) is fixedly connected to the top of the workbench (1). An automatic clamping mechanism (4) is provided on the outside of the spraying mechanism (3). The spraying mechanism (3) includes a gantry (31), a spraying box (32) is fixedly connected to the top of the gantry (31), a pump (33) is fixedly connected to the top of the spraying box (32), a spraying plate (34) is fixedly connected to the bottom of the pump (33), and an electrical control box (6) is fixedly connected to the outside of the gantry (31). The automatic clamping mechanism (4) includes a connecting plate (41), a motor (42) is fixedly connected to the outside of the connecting plate (41), a bidirectional lead screw (43) is fixedly connected to the output end of the motor (42), a collar (44) is threadedly connected to the outside of the bidirectional lead screw (43), a connecting rod (45) is fixedly connected to the bottom of the collar (44), a clamping plate positioning plate (46) is fixedly connected to the bottom of the connecting rod (45), and a rubber plate (47) is fixedly connected to the outside of the positioning plate (46).

2. The automated spraying conveyor line and positioning device according to claim 1, characterized in that: The top of the collar (44) is fixedly connected to a limiting rod (410), the outside of the gantry (31) is fixedly connected to a top plate (48), the inside of the top plate (48) is provided with a moving groove (49), a disassembly mechanism (5) is provided between the connecting rod (45) and the positioning plate (46), the disassembly mechanism (5) includes a positioning hole (51), the top of the positioning plate (46) is fixedly connected to an installation groove (52), the outside of the installation groove (52) is fixedly connected to a movable tube (53), the inside of the movable tube (53) is movably connected to a snap-fit ​​rod (54), and a compression spring (55) is sleeved on the snap-fit ​​rod (54).

3. The automated spraying conveyor line and positioning device according to claim 1, characterized in that: The gantry (31) is fixedly connected to the top bone of the workbench (1), and the spray plate (34) is located between the gantry (31) and the transport machine (2).

4. The automated spraying conveyor line and positioning device according to claim 1, characterized in that: The connecting plates (41) are fixed and symmetrically distributed on the outside of the gantry frame (31), and the bidirectional screw (43) is rotatably connected between the two connecting plates (41).

5. The automated spraying conveyor line and positioning device according to claim 1, characterized in that: The collars (44) are symmetrically distributed on the outside of the double-acting lead screw (43), and the positioning plate (46) and the rubber plate (47) are symmetrically distributed on the top of the conveyor (2).

6. An automated spraying conveyor line and positioning device according to claim 2, characterized in that: The top of the limiting rod (410) is slidably connected to the top of the moving groove (49), and the positioning hole (51) is located in the bottom side wall of the connecting rod (45).

7. An automated spraying conveyor line and positioning device according to claim 2, characterized in that: The bottom of the connecting rod (45) is located inside the mounting groove (52), and one end of the snap-fit ​​rod (54) is located inside the positioning hole (51).

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