Spraying conveying system with pre-rotation transition structure

Abstract

The utility model relates to a spraying conveying system with a pre-rotation transition structure, which comprises a rack and a conveying device, the conveying device is provided with a conveying jig for placing a workpiece to be sprayed, and the rack is further provided with a chain conveying mechanism and a pre-rotation belt conveying mechanism. A transmission connecting device enabling the chain conveying mechanism and the pre-rotating belt conveying mechanism to rotate synchronously is connected between the chain conveying mechanism and the pre-rotating belt conveying mechanism. Through the arrangement of the pre-rotating belt conveying mechanism, before a jig chain wheel of a conveying jig is connected and meshed with the chain conveying mechanism, a friction column and a jig inserting rod tray slowly rotate firstly, then the rotating speed of the jig chain wheel is gradually made to reach the speed matched with the speed of meshing of the chain conveying mechanism, and finally, the friction column and the jig inserting rod tray are driven to rotate. The jig chain wheel is connected and meshed with the chain conveying mechanism, and the friction column and the jig inserting rod tray rotate at a fixed frequency, so that jumping of a hub on the conveying jig and friction of a hub flange plate are reduced or even avoided, defective products are reduced, and the product quality is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to spraying technical field especially relates to a spraying conveying system with pre-rotation transition structure. BACKGROUND

[0002] The existing wheel hub spraying process is that the conveying fixture carries the wheel hub to pass through the spraying room (the conveying fixture is adapted to the diversity of the wheel hub, and no combination fixing device exists between the two, and only the wheel is pressed on the fixture tray or fixture rod by its own weight). The spraying mode usually adopts two modes of fixed gun position spraying and robot spraying, and the current two modes of spraying all need to rotate the station inside the spraying room, so that the wheel hub on the fixture rod entering the spraying room is rotated at a fixed frequency, thereby ensuring the relative uniformity of the sprayed coating on the surface of the wheel hub.

[0003] In the current industry, the conveying fixture does not have a pre-rotation device before entering the spraying room, and when the conveying fixture enters the rotating station of the spraying room, the conveying fixture moves forward at a constant speed from a static state, is instantly forced to enter the rotating forward movement state, and in the instant when the conveying fixture contacts the rotating station, the conveying fixture is shaken by the strong rotating pulling force and causes the wheel hub on the fixture tray to jump, which causes the wheel hub flange to be rubbed and scratched or the wheel hub to fall off the fixture tray and be scrapped, thereby reducing the efficiency and yield of spraying. SUMMARY

[0004] The utility model aims at at least in a certain extent solves one of the problems existing in the prior art related, for this, the utility model provides a kind of spraying conveying system with pre-rotation transition structure.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A kind of spraying conveying system with pre-rotation transition structure, including rack, conveying device is arranged on the rack, conveying fixture for placing the workpiece to be sprayed is arranged on the conveying device, the conveying fixture includes the installation connecting seat connected with conveying device, the friction column rotationally arranged on the upper end of installation connecting seat and the fixture plug rod tray fixedly arranged on the upper end of friction column, chain conveying mechanism and pre-rotation belt conveying mechanism are further arranged on the rack, fixture chain wheel that can be connected with chain conveying mechanism is arranged on the friction column, the pre-rotation belt conveying mechanism is located at one side of the front end of chain conveying mechanism, and can be contacted with friction column to drive the friction column to rotate, transmission connecting device that allows the synchronous rotation work of chain conveying mechanism and pre-rotation belt conveying mechanism is connected between chain conveying mechanism and pre-rotation belt conveying mechanism.

[0007] In some embodiments, the pre-rotation belt conveying mechanism comprises a fixed frame arranged on one side of the rack, a first rotating shaft rotatably arranged on the fixed frame, a main pulley arranged on the upper end of the first rotating shaft, a supporting long plate movably arranged on the fixed frame, a plurality of secondary pulleys arranged on the supporting long plate in sequence and at intervals along the length direction of the supporting long plate, and a belt connected and sleeved between the main pulley and the plurality of secondary pulleys.

[0008] In some embodiments, the fixed frame is provided with fixed seats at intervals, threaded rods are arranged through the fixed seats, hinge pieces are arranged on one end of the threaded rods and rotatably arranged on the supporting long plate, and locking nuts are threadedly connected on the threaded rods and located on both sides of the fixed seats.

[0009] In some embodiments, the fixed frame further comprises an adjusting seat, and the first rotating shaft is rotatably arranged on the adjusting seat.

[0010] In some embodiments, a pressing plate is further arranged on the fixed frame, and the supporting long plate is arranged between the fixed frame and the pressing plate.

[0011] In some embodiments, a protective cover is further arranged on the fixed frame.

[0012] In some embodiments, the chain conveying mechanism comprises two conveying sprockets arranged at intervals, a chain connected and sleeved between the two conveying sprockets, and a driving motor for driving one of the conveying sprockets to rotate.

[0013] In some embodiments, the transmission connecting device comprises a first transmission sprocket arranged on the first rotating shaft, a second rotating shaft coaxially arranged on the other conveying sprocket, a second transmission sprocket arranged on the second rotating shaft, and a transmission chain connected and sleeved between the first transmission sprocket and the second transmission sprocket.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] 1. By arranging the pre-rotation belt conveying mechanism, the friction column and the jig inserting rod tray are first slowly rotated before the jig sprocket of the conveying jig is connected and engaged with the chain conveying mechanism, then the rotation speed of the jig sprocket gradually reaches the matching speed for the engagement with the chain conveying mechanism, finally, the jig sprocket is connected and engaged with the chain conveying mechanism, and the friction column and the jig inserting rod tray are rotated at a fixed frequency, so that the hub jumping on the conveying jig and the friction of the hub flange are reduced or even avoided, the generation of defective products is reduced, and the product quality is improved.

[0016] 2. By setting up a transmission connection device, the rotation speed of the chain conveyor mechanism and the pre-rotating belt conveyor mechanism can be made consistent. In addition, a power unit is reduced, thus reducing manufacturing costs. Attached Figure Description

[0017] Figure 1 This is one of the structural schematic diagrams of the spraying and conveying system of this utility model;

[0018] Figure 2 This is the second schematic diagram of the structure of the spraying and conveying system of this utility model;

[0019] Figure 3 This is a schematic diagram of the conveying fixture of this utility model;

[0020] Figure 4 This utility model Figure 1 An enlarged schematic diagram of point A;

[0021] Figure 5 This utility model Figure 2 An enlarged schematic diagram of point B;

[0022] Figure 6 This is a partial schematic diagram of the present invention;

[0023] Figure 7 This is a schematic diagram of the pre-rotating belt conveyor mechanism of this utility model. Detailed Implementation

[0024] The following detailed description provides various embodiments or examples for implementing this utility model. Of course, these are merely embodiments or examples and are not intended to be limiting. Additionally, repeated reference numerals, such as repeated numbers and / or letters, may be used in different embodiments. These repetitions are for the purpose of simple and clear description of this utility model and do not represent a specific relationship between the different embodiments and / or structures discussed.

[0025] like Figures 1-7 The painting conveying system shown includes a frame 1, on which a conveying device is mounted. The conveying device is equipped with a conveying fixture 2 for placing a workpiece 10 to be painted. The workpiece 10 can be a wheel hub or other products. The conveying fixture 2 includes a mounting connection seat 3 connected to the conveying device, a friction column 4 rotatably mounted on the upper end of the mounting connection seat 3, and a fixture insert tray 5 fixedly mounted on the upper end of the friction column 4. The fixture insert tray 5 is used to place the workpiece 10 to be painted. The conveying device is a conventional setup. By fixing the mounting connection seat 3 to the conveying device, it can follow the conveying device for transport.

[0026] The chain conveying mechanism 6 and the pre-rotation belt conveying mechanism 7 are arranged on the frame 1, a jig chain wheel 8 capable of being connected and engaged with the chain conveying mechanism 6 is arranged on the friction column 4, the pre-rotation belt conveying mechanism 7 is arranged on one side of the front end of the chain conveying mechanism 6 and can contact the friction column 4 to drive the friction column 4 to rotate, and a transmission connecting device for synchronously rotating the chain conveying mechanism 6 and the pre-rotation belt conveying mechanism 7 is arranged between the chain conveying mechanism 6 and the pre-rotation belt conveying mechanism 7.

[0027] Therefore, through the arrangement of the pre-rotation belt conveying mechanism 7, the friction column 4 is contacted with the pre-rotation belt conveying mechanism 7 before the jig chain wheel 8 of the conveying jig 2 is connected and engaged with the chain conveying mechanism 6, so that the friction column 4 and the jig inserting rod tray 5 are slowly rotated first, then the rotation speed of the friction column 4 is slowly equal to the rotation speed of the chain conveying mechanism 6, finally, the jig chain wheel 8 is connected and engaged with the chain conveying mechanism 6, so that the friction column 4 and the jig inserting rod tray 5 are rotated at a fixed frequency, thereby reducing or even avoiding the hub jumping and the friction of the hub flange plate of the jig inserting rod tray 5, reducing the generation of defective products and improving the product quality.

[0028] Through the arrangement of the transmission connecting device, the rotation speeds of the chain conveying mechanism 6 and the pre-rotation belt conveying mechanism 7 can be consistent, and one power device is reduced, thereby reducing the manufacturing cost.

[0029] Referring to FIGS. 1-7, Figure 4 , Figure 6 , Figure 7 The pre-rotation belt conveying mechanism 7 includes a fixed frame 21 arranged on one side of the frame 1, a first rotating shaft 22 rotatably arranged on the fixed frame 21, a main pulley 23 arranged on the upper end of the first rotating shaft 22, a supporting long plate 24 movably arranged on the fixed frame 21, a plurality of secondary pulleys 25 arranged on the supporting long plate 24 in sequence and at intervals along the length direction of the supporting long plate 24, and a belt 26 sleeved and connected between the main pulley 23 and the plurality of secondary pulleys 25. Through the action of the plurality of secondary pulleys 25, one contact plane 11 is formed on one side of the belt 26, the contact plane 11 is contacted with the friction column 4, and the friction column 4 is driven to rotate.

[0030] Further, a fixing base 31 is arranged on the fixing frame 21, a screw rod 32 is arranged on the fixing base 31, a hinge 33 is arranged on one end of the screw rod 32, the hinge 33 is rotatably arranged on the supporting long plate 24, and a locking nut 34 is threadedly connected to the screw rod 32 and located on both sides of the fixing base 31. Thus, the supporting long plate 24 can be inclined at an angle by adjusting the screw rods 32 on both sides, so that the friction column 4 slowly contacts the belt 26, the speed of the friction column 4 is slowly increased, the hub jump and the friction of the hub flange on the jig inserting rod tray 5 are reduced or even avoided, the defective products are reduced, and the product quality is improved.

[0031] Referring to Figure 5 As shown, the fixing frame 21 further comprises an adjusting base 41, the first rotating shaft 22 is rotatably arranged on the adjusting base 41, and the adjusting base 41 is fixed to the fixing frame 21 by a plurality of bolts. Thus, the belt 26 can be tensioned by adjusting the position of the adjusting base 41, so that the belt 26 can be in good contact with the friction column 4.

[0032] Further, a pressing plate 51 is arranged on the fixing frame 21, and the supporting long plate 24 is arranged between the fixing frame 21 and the pressing plate 51. The supporting long plate 24 is limited by the pressing plate 51, so that the stability of the supporting long plate 24 after installation is improved.

[0033] Further, the fixing frame 21 is further covered with a protective cover (not shown in the drawings).

[0034] Referring to Figure 4 As shown, the chain conveying mechanism 6 comprises two conveying sprockets 71 arranged at intervals, a chain 72 connected and arranged between the two conveying sprockets 71, and a driving motor for driving one of the conveying sprockets 71 to rotate. The chain conveying mechanism 6 is a conventional arrangement.

[0035] Further, the transmission connecting device comprises a first transmission sprocket 81 arranged on the first rotating shaft 22, a second rotating shaft 82 arranged coaxially on the other conveying sprocket 71, a second transmission sprocket 83 arranged on the second rotating shaft 82, and a transmission chain 84 connected and arranged between the first transmission sprocket 81 and the second transmission sprocket 83. The rotation of the conveying sprocket 71 drives the chain 72 to rotate. Since the conveying speed of the chain 72 is faster than the conveying speed of the conveying device, the chain 72 drives the jig sprocket 8 and the friction column 4 to rotate. In addition, the first transmission sprocket 81, the second transmission sprocket 83, and the transmission chain 84 drive the first rotating shaft 22 and the main pulley 23 to rotate, and finally drive the belt 26 to rotate.

[0036] In addition, a plurality of chain conveying mechanisms 6 can be arranged on the rack 1 along the conveying direction of the conveying device, and a pre-rotation belt conveying mechanism 7 can be arranged at the front end of each chain conveying mechanism 6, and the plurality of chain conveying mechanisms 6 can be forward rotation or reverse rotation.

[0037] The person skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principle of the present application, and various changes and improvements can be made without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A spray delivery system with pre-rotation transition structure, comprising a frame (1), a delivery device is arranged on the frame (1), a delivery jig (2) for placing a workpiece (10) to be sprayed is arranged on the delivery device, characterized in that: The conveying jig (2) comprises a mounting connecting seat (3) connected with a conveying device, a friction column (4) rotatably arranged on the upper end of the mounting connecting seat (3), and a jig inserting rod tray (5) fixedly arranged on the upper end of the friction column (4).

2. A spray delivery system having a pre-rotation transition according to claim 1, wherein: The pre-rotation belt conveying mechanism (7) comprises a fixed frame (21) arranged on one side of the rack (1), a first rotating shaft (22) rotatably arranged on the fixed frame (21), a main pulley (23) arranged on the upper end of the first rotating shaft (22), a supporting long plate (24) movably arranged on the fixed frame (21), a plurality of secondary pulleys (25) arranged on the supporting long plate (24) in sequence and at intervals along the length direction of the supporting long plate (24), and a belt (26) sleeved and connected between the main pulley (23) and the plurality of secondary pulleys (25).

3. A spray delivery system having a pre-rotation transition according to claim 2, wherein: The fixed frame (21) is further provided with a fixed seat (31), a screw rod (32) is arranged on the fixed seat (31), a hinge piece (33) is arranged on one end of the screw rod (32), the hinge piece (33) is rotatably arranged on the supporting long plate (24), and locking nuts (34) are threadedly connected on the screw rod (32) and located on both sides of the fixed seat (31).

4. A spray delivery system having a pre-rotation transition according to claim 2, wherein: The fixed frame (21) further comprises an adjusting seat (41), and the first rotating shaft (22) is rotatably arranged on the adjusting seat (41).

5. A spray delivery system having a pre-rotation transition according to claim 2, wherein: The fixed frame (21) is further provided with a pressing plate (51), and the supporting long plate (24) is arranged between the fixed frame (21) and the pressing plate (51).

6. A spray delivery system having a pre-rotation transition according to claim 2, wherein: The fixed frame (21) is further provided with a protective cover.

7. A spray delivery system having a pre-rotation transition according to claim 2, wherein: The chain conveying mechanism (6) comprises two conveying sprockets (71) arranged at intervals, a chain (72) sleeved and connected between the two conveying sprockets (71), and a driving motor for driving one of the conveying sprockets (71) to rotate.

8. A spray delivery system having a pre-rotation transition according to claim 7, wherein: The transmission connecting device comprises a first transmission sprocket (81) arranged on the first rotating shaft (22), a second rotating shaft (82) coaxially arranged on the other conveying sprocket (71), a second transmission sprocket (83) arranged on the second rotating shaft (82), and a transmission chain (84) sleeved and connected between the first transmission sprocket (81) and the second transmission sprocket (83).

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