Multi-station conveying mechanism and spraying equipment

Abstract

The utility model relates to the technical field of spraying equipment, and discloses a multi-station conveying mechanism and spraying equipment, and the multi-station conveying mechanism comprises a conveying assembly and a conveying assembly, the number of the workpiece fixing assemblies is multiple, the multiple workpiece fixing assemblies are sequentially arranged on the conveying line at intervals in the conveying direction, each workpiece fixing assembly is provided with a rotating end and a positioning structure arranged at the rotating end, and the positioning structures are matched with workpieces; and the rotating driving assembly is arranged on one side of the conveying line and comprises a plurality of driving ends corresponding to the positioning structures, and the driving ends are matched with the rotating ends to form a non-contact rotating transmission structure. According to the multi-station conveying mechanism and the spraying equipment, the requirement for automatic spraying production with high efficiency and high automatic quality can be met.

Description

Technical Field

[0001] The present application belongs to the technical field of spraying equipment, and specifically relates to a multi-station conveying mechanism and spraying equipment. Background Art

[0002] Spraying is one of the important processes in product production, which is used to form a film layer on the surface of the product, thereby protecting the surface of the product and beautifying the appearance of the product. For example, in the field of consumer electronics, after the middle frame of watches and mobile phones is formed, a protective film is generally formed on the outer surface by spraying and baking. Generally speaking, when spraying, the higher the rotation speed, the more uniform the thickness of the film layer formed on the surface of the product and the better the quality. In the prior art, multiple middle frames are generally connected in series on a working rod, and then the spraying operation is performed while rotating the entire working rod. However, this spraying method requires technicians to manually connect multiple middle frames in series in advance, resulting in a low degree of automated production; at the same time, in order to meet the needs of connecting multiple products in series, the length of the working rod is relatively long, and the working rod is prone to deformation during high-speed rotation, which is not conducive to product stability. Therefore, this connection method also requires that the rotation speed of the working rod as a whole should not be too fast, which cannot meet the needs of high-quality spraying production. Summary of the invention

[0003] The purpose of this application is to provide a multi-station conveying mechanism and spraying equipment that can meet the needs of efficient and high-quality automated spraying production.

[0004] In order to achieve the above objectives, the present application provides a multi-station conveying mechanism, comprising:

[0005] Conveying components, including conveying lines;

[0006] A plurality of workpiece fixing assemblies are provided, and the plurality of workpiece fixing assemblies are sequentially arranged on the conveying line at intervals along the conveying direction, and each group of the workpiece fixing assemblies has a rotating end and a positioning structure, and the rotating end can drive the positioning structure to rotate, and the positioning structure is adapted to the workpiece; and

[0007] The rotation drive assembly is arranged at one side of the conveying line and comprises a plurality of driving ends corresponding to the positioning structure, wherein the driving ends cooperate with the rotating ends to form a non-contact rotation transmission structure.

[0008] In some specific embodiments, the rotating end includes a rotating shaft rotatably connected to the conveying line, the positioning structure is arranged on the rotating shaft, and a first magnetic ring that rotates synchronously is also arranged on the rotating shaft. The driving end includes a second magnetic ring and a rotating driving unit, the rotating driving unit is transmission-connected to the second magnetic ring, and the second magnetic ring is arranged in alignment with the first magnetic ring to form a non-contact rotating transmission structure.

[0009] In some specific embodiments, the rotation axis of the first magnetic ring may intersect with the rotation axis of the second magnetic ring.

[0010] In some specific embodiments, a plurality of connection terminals are arranged on the conveyor line and are spaced apart from each other in sequence, a plurality of groups of the workpiece fixing components correspond one-to-one to the plurality of connection terminals, and each group of the workpiece fixing components can be detachably connected to the connection terminals.

[0011] In some specific embodiments, each group of the workpiece fixing components is provided with a fixing block, and a fixing groove is configured on one side of the fixing block connected to the connecting terminal.

[0012] In some specific embodiments, the positioning structure includes an upper jig and a lower jig, the upper jig and the lower jig are detachably connected, and the outer peripheral walls of the upper jig and the lower jig, which are close to each other and cooperate with each other, jointly define a fixing groove adapted to the workpiece.

[0013] On the other hand, the present application provides a spraying device, characterized in that it includes:

[0014] The multi-station conveying mechanism mentioned above; and

[0015] A spraying assembly, wherein the spraying assembly comprises a plurality of nozzles, and the nozzles are directed toward the positioning structure on the multi-station conveying mechanism.

[0016] In some specific embodiments, the nozzle may include a plurality of upper nozzles and a plurality of side nozzles, and the upper nozzles and the side nozzles are arranged along a conveying direction of the multi-station conveying mechanism.

[0017] In some specific embodiments, the spraying angle of the nozzle is adjustable.

[0018] In some specific embodiments, the spraying equipment further comprises:

[0019] The baking component is arranged downstream of the spraying component corresponding to the multi-station conveying mechanism.

[0020] Through the above technical solution, since the workpiece fixing component is arranged on the conveyor line, the positioning structure can circulate through the spraying component along with the conveyor line, and automatically return to the loading and unloading place to unload and reload, so as to realize automatic reciprocating cycle operation, and the whole machine has high operating efficiency. Moreover, since the positioning structure can rotate quickly, the workpiece can be sprayed evenly, and the spraying quality is high. In addition, since the positioning structure of the spraying equipment of the present application is arranged on the conveyor line and adopts a non-contact rotating transmission mechanism to drive the rotation, there is no need to set a complex rotating shaft driving structure, the overall structure is simple and reasonable, and the manufacturing cost and maintenance cost are low.

[0021] Other features and advantages of the embodiments of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the embodiments of the present application and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the embodiments of the present application, but do not constitute a limitation on the embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without creative work. In the drawings:

[0023] Figure 1 It is a structural schematic diagram of a spraying device according to a specific embodiment of the utility model;

[0024] Figure 2 for Figure 1 A schematic diagram of a portion of the structure of the spraying equipment;

[0025] Figure 3 for Figure 2 An enlarged schematic diagram of the position Ⅰ in FIG.

[0026] Figure 4 for Figure 1 A schematic diagram of the structure of some components in a top-down view;

[0027] Figure 5 for Figure 4 An enlarged schematic diagram of the II position in FIG.

[0028] Figure 6 for Figure 4 A schematic diagram of the structure of the rotation drive assembly in FIG.

[0029] Figure 7 for Figure 1 A schematic diagram of a portion of the structure of a workpiece fixing assembly;

[0030] Figure 8 for Figure 7 A schematic diagram of the positioning structure in FIG.

[0031] Fig. 9 for Figure 8 A cross-sectional view of the positioning structure in FIG.

[0032] Fig.10 for Figure 7 A cross-sectional view of a component in FIG.

[0033] Fig.11 for Figure 2 Schematic diagram of the nozzle structure.

[0034] Description of Reference Numerals

[0035] 1 Conveyor Components 11 Conveyor Lines

[0036] 111 Connection terminal 12 Drive unit

[0037] 2 Workpiece fixing assembly 21 Rotation axis

[0038] 22 Positioning structure 221 Upper fixture

[0039] 222 Lower fixture 223 Fixing groove for workpiece to be sprayed

[0040] 23 first magnetic ring 24 fixed block

[0041] 241 Connecting fixing groove 25 Fixing block bearing

[0042] 26 Stabilizing bearing 27 Rotating shaft protection cover

[0043] 3 Spraying assembly 31 Upper nozzle

[0044] 32 Side nozzle 33 Spray hood

[0045] 34 Finished protective cover 35 Chain cover

[0046] 36 Mounting frame 4 Rotation drive assembly

[0047] 41 second magnetic ring 42 transmission shaft

[0048] 43 Rotating motor 5 Baking components

[0049] 6 Nozzle cleaning tank DETAILED DESCRIPTION

[0050] The specific implementation of the present application is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present application, and is not used to limit the present application.

[0051] like Figure 1 , Figure 2 as well as Figure 4 As shown, the utility model provides a multi-station conveying mechanism, which includes a conveying assembly 1, a workpiece fixing assembly 2 and a rotation drive assembly 4. The conveying assembly 1 includes a conveying line 11, and a plurality of workpiece fixing assemblies 2 are provided. The plurality of workpiece fixing assemblies 2 are sequentially arranged on the conveying line 11 along the conveying direction. Each group of workpiece fixing assemblies 2 has a rotating end and a positioning structure 22. The positioning structure 22 is arranged on the rotating end. The rotating end can drive the positioning structure 22 to rotate, and the positioning structure 22 is adapted to the workpiece. The rotation drive assembly 4 is arranged on one side of the conveying line 11 and includes a plurality of driving ends corresponding to the positioning structure. The driving end cooperates with the rotating end to form a non-contact rotation transmission structure.

[0052] The multi-station conveying mechanism provided by the utility model is mainly aimed at hollow-out workpieces, such as metal middle frames of mobile phones and watches in the consumer electronics field, and the specific shape and material of the workpiece are not limited. In order to more intuitively illustrate the specific implementation method, the workpiece in the following embodiment is described by taking the middle frame of a watch as an example.

[0053] Compared with the existing spraying equipment that needs to connect the watch middle frames in batches and then put them into the spraying equipment, the spraying equipment of the present application directly sets the workpiece fixing component 2 on the conveyor line 11, and the positioning structure 22 can circulate through the spraying area with the conveyor line 1, and automatically return to the loading and unloading place to unload and reload, realizing automatic reciprocating cycle operation, and the whole machine has high operating efficiency. In addition, because the positioning structure 22 can rotate quickly, the workpiece can be sprayed evenly, and the spraying quality is high.

[0054] In addition, since the positioning structure 22 of the multi-station conveying mechanism of the present application is arranged on the conveying line 11, if a contact transmission connection structure is used to drive the positioning structure 22 to rotate, the structure of the spraying equipment will be complicated and the manufacturing cost will be high. In view of this, the spraying equipment of the present application adopts a non-contact rotation transmission mechanism to drive the positioning structure 22 to rotate, and the rotation drive component 4 is arranged in conjunction with the spraying area of ​​the conveying line 11. When the positioning structure 22 is transported to the spraying area along the conveying line 11, the driving end cooperates with the rotating end to form a non-contact rotation transmission mechanism, so that the rotating end can drive the positioning structure 22 located in the spraying area to rotate to achieve high-quality spraying, without the need to set a complex rotating shaft driving structure, so that the overall structure of the spraying equipment is simple and reasonable, and the manufacturing cost and maintenance cost are low.

[0055] Optionally, the rotating end includes a rotating shaft 21, a positioning structure 22 is arranged on the rotating shaft 21, and a first magnetic ring 23 that rotates synchronously is also provided on the rotating shaft 21, and the rotating shaft 21 is rotatably connected to the conveyor line 11. The positioning structure 22 is used to fix the workpiece to be sprayed, and the driving end includes a second magnetic ring 41 and a rotation drive unit, and the rotation drive unit is transmission-connected with the second magnetic ring 41 and drives the second magnetic ring 41 to rotate. The second magnetic ring 41 is arranged in alignment with the first magnetic ring 23 and forms a non-contact rotation transmission structure with the first magnetic ring 23. The positioning structure 22 can rotate quickly under the drive of the first magnetic ring 23 and the second magnetic ring 41, so that the workpiece can be evenly sprayed and the spraying quality is high. When the positioning structure 22 is transported to the spraying area along the conveyor line 11, the second magnetic ring 41 forms a non-contact rotation transmission structure with the first magnetic ring 23 in the spraying area.

[0056] It should be noted that non-contact rotation transmission is a contactless induction transmission that transmits power through the principle of magnetic induction. The magnetic ring structure for realizing non-contact rotation transmission mechanism is well known to those skilled in the art and does not belong to the core improvement part of this application, so it will not be repeated here.

[0057] On the other hand, the utility model also provides a spraying device, which includes the above-mentioned multi-station conveying mechanism and a spraying component 3, the spraying component 3 includes a plurality of nozzles, and the nozzles are arranged toward the positioning structure 22 on the multi-station conveying mechanism, so that the workpiece to be sprayed on the positioning structure 22 can be sprayed.

[0058] In some specific embodiments, since some products need to be sprayed not only on the side surface but also on the upper surface, in order to adapt to the spraying of various products, the nozzle may include a plurality of upper nozzles 31 and a plurality of side nozzles 32. Figure 2 and Fig.11 As shown, the spray assembly 3 also includes a mounting frame 36 mounted on the conveying line 11, and the nozzle is fixedly mounted on the mounting frame 36. The upper nozzle 31 and the side nozzle 32 are arranged along the conveying direction of the multi-station conveying mechanism, and a first mounting plate and a second mounting plate can be fixed on the mounting frame 36, the side nozzle is arranged on the first mounting plate, and the upper nozzle is arranged on the second mounting plate.

[0059] Optionally, the spraying angle of the nozzle can be adjusted to adapt to different types of workpiece spraying operations.

[0060] Alternatively, if Figure 1 and Figure 2 As shown, the conveying assembly 1 may also include a conveying drive unit 12, which is connected to the conveying line 11 and drives the conveying line 11 to operate. The conveying line 11 is an enclosed circulating conveying line. The positioning structure 22 is arranged on the conveying line 11 through the rotating shaft 21 and moves with the conveying line 11 to achieve a circulating operation. Among them, the rotating drive assembly 4 and the conveying drive unit 12 can be arranged on the inner side of the conveying line 11, so that the overall structure of the spraying equipment can be more reasonable and compact.

[0061] In some specific embodiments, in order to avoid the influence of spray on the workpiece that has been sprayed or to be sprayed, the number of second magnetic rings 41 is greater than the number of nozzles, and the positioning structure 22 located in the spraying area of ​​the nozzle and the positioning structure 22 adjacent to the spraying area of ​​the nozzle can be arranged with the second magnetic ring 41 in position. That is, the conveying line 11 includes a spraying operation station and a spraying adjacent station, the spraying operation station is a station located in the spraying area of ​​the nozzle, and the spraying adjacent station is adjacent to the spraying operation station and is located on the upstream and downstream sides of the spraying operation station. The spraying operation station and the spraying adjacent station are both arranged with the second magnetic ring 41 in position, so that the rotating drive assembly 4 can not only drive the positioning structure 22 in the spraying operation to rotate, but also drive the positioning structure 22 adjacent to the spraying area that has been completed and to be operated to rotate, thereby driving the air around it to flow at high speed, so as to isolate the workpiece that has been completed and to be operated, and prevent the watch middle frame on it from being affected by the spray sprayed in the adjacent nozzle, thereby improving the overall spraying quality.

[0062] For example, Figure 2 , Figure 4 , Figure 6 as well as Fig.11 As shown, the spraying assembly 3 is provided with 4 nozzles, including 2 side nozzles 32 and 2 upper nozzles 31, and there is a station between the 2 side nozzles 32 and the 2 upper nozzles 31. That is, the conveying line 11 includes 4 spraying stations aligned with the 4 nozzles and 3 spraying adjacent stations adjacent to the 4 spraying stations, that is, the rotation drive assembly 4 can be provided with at least 7 second magnetic rings 41. Of course, more can be provided in practice, which is not limited here.

[0063] In some specific embodiments, the rotation axis of the first magnetic ring 23 and the rotation axis of the second magnetic ring 41 are intersecting. In this configuration, the magnetic field lines of the first magnetic ring 23 and the second magnetic ring 41 are distributed around their rotation axes. When the rotation axes of the two are intersecting, their magnetic flux lines or magnetic fields will be cut during movement, thereby generating magnetic force. Considering this, as long as the rotation axes of the two are not parallel or in the same straight line, the magnetic force can be used to form a non-contact drive transmission form.

[0064] Preferably, if Figure 5 As shown, the rotation axis of the first magnetic ring 23 of the embodiment of the present application is perpendicular to the rotation axis of the second magnetic ring 41, so that the magnetic flux lines of the first magnetic ring 23 and the second magnetic ring 41 can be distributed at right angles at the intersection, and thus perform efficient transmission control. This form has better transmission efficiency than other cross distribution forms. It can be understood by those skilled in the art that the present application is not limited to the right-angle cross transmission form provided in the embodiment of the present application, and can also be used in distribution forms such as acute angle cross or obtuse angle cross.

[0065] Obviously, in addition to the non-contact rotation transmission form of magnetic force control, non-contact rotation transmission control can also be performed by induction control, switch control, etc. For example, each rotating end is equipped with a control switch and a rotating motor controlled to start and stop by the control switch. When the control switch is close to or aligned with the driving end, the control switch senses or controls the turning on of the rotating motor for a certain period of time, so that the rotating motor can drive the positioning structure 22 to rotate when rotation is required. Other structural forms such as these that can achieve non-contact rotation transmission should also fall within the scope of protection of the present application when used in combination with the present application.

[0066] In some specific embodiments, Figure 4 , Figure 5 as well as Figure 6 As shown, the rotation drive unit may include a transmission shaft 42 and a rotation motor 43, a plurality of second magnetic rings 41 are axially spaced apart and arranged on the transmission shaft 42, and the rotation motor 43 is in transmission connection with the transmission shaft 42. In this way, a plurality of second magnetic rings 41 can be driven to rotate simultaneously by a rotation motor 43, so that the structure of the spraying equipment is more reasonable and compact. The rotation motor 43 may be rotationally connected with the transmission shaft 42 via a pulley.

[0067] Of course, in addition to the above-mentioned structure, the second magnetic ring 41 may also be provided with a one-to-one corresponding driving motor and transmission shaft, but the present application is not limited thereto.

[0068] Optionally, a plurality of connection terminals 111 are arranged on the conveyor line 11 and are spaced apart from each other. A plurality of workpiece fixing assemblies 2 correspond to the plurality of connection terminals 111 one by one, and each set of workpiece fixing assemblies 2 can be detachably connected to the connection terminals 111. Each set of workpiece fixing assemblies is provided with a fixing block 24, and a fixing groove 241 is provided on one side of the fixing block 24 connected to the connection terminal 111.

[0069] Alternatively, if Figure 3 , Figure 7 as well as Fig.10 As shown, the workpiece fixing assembly 2 may also include a fixing block 24, in which the rotating shaft 21 is rotatably inserted, and a connecting fixing groove 241 is provided on the outer peripheral wall of the fixing block 24. The conveying line 11 is a conveying chain, and a connecting terminal 111 extends upward from the conveying chain, and the connecting terminal 111 is fixed in the connecting fixing groove 241.

[0070] It should be noted that, in addition to the above-mentioned fixed block slot form, the detachable connection structure between the workpiece fixing assembly 2 and the connecting terminal 111 can also adopt bolt fixing, plug-in, mortise and tenon connection and other connection assembly forms. For example, the fixed block 24 and the connecting terminal 111 are respectively provided with bolt holes, and the fixed block 24 and the connecting terminal 111 are detachably connected by bolt fasteners; or, a plug-in hole is provided on one of the fixed block 24 and the connecting terminal 111, and a plug-in rod is provided on the other of the fixed block 24 and the connecting terminal 111, and the fixed block 24 and the connecting terminal 111 are detachably connected by plugging; or, a mortise and tenon structure is provided between the fixed block 24 and the connecting terminal 111, and the fixed block 24 and the connecting terminal 111 are detachably connected by mortise and tenon connection, but the present application is not limited to this.

[0071] Furthermore, the fixed block 24 is disposed in the axial middle of the rotating shaft 21 and is connected to the rotating shaft 21 via at least two fixed block bearings 25 spaced apart along the axial direction, so that the rotating shaft 21 can be stably and rotatably disposed on the conveyor line 11 .

[0072] In addition, the workpiece fixing assembly 2 may further include a rotating shaft protection cover 27 disposed on the upper portion of the rotating shaft 21, and the rotating shaft protection cover 27 may protect the components below during the spraying operation, and the positioning structure 22 is disposed at the top end of the rotating shaft 21 and located above the rotating shaft protection cover 27. Figure 2 , Figure 7 as well as Fig.10 As shown, the rotating shaft protection cover 27 includes a top cover body and a lower cover plate, the top cover body is provided on the top of the rotating shaft 21, the lower cover plate is located above the fixed block 24 and extends toward the upstream side and the downstream side to form a cover plate overlap portion, and the lower cover plates of two rotating shaft protection covers 27 adjacent to each other along the conveying direction overlap each other. Among them, the end of one of the cover plate overlap portion on the upstream side and the cover plate overlap portion on the downstream side can be bent downward, and the end of the other of the cover plate overlap portion on the upstream side and the cover plate overlap portion on the downstream side can be bent upward, and the downward bent end can overlap above the adjacent upward bent end to form an overlapping overlap area, which is conducive to improving the protection effect of the rotating shaft protection cover 27.

[0073] In addition, the positioning structure 22 may include an upper fixture 221 and a lower fixture 222, which are detachably connected, and the peripheral walls of the upper fixture 221 and the lower fixture 222, which are close to each other and cooperate with each other, jointly define a fixing groove 223 adapted to the workpiece. Optionally, the upper fixture 221 and the lower fixture 222 can be attracted by magnetic force, and the peripheral walls of the two jointly define the fixing groove 223 of the workpiece to be sprayed, and the frame workpiece such as the middle frame of a watch can be clamped in the fixing groove 223 of the workpiece to be sprayed for fixing.

[0074] like Figure 8 and Fig. 9As shown, the top wall of the upper fixture 221 is provided with a gripping portion, the lower peripheral wall of the upper fixture 221 is radially recessed inward, and the upper peripheral wall of the lower fixture 222 is radially recessed inward to define a fixing groove 223 for the workpiece to be sprayed together with the upper fixture 221. The bottom wall of the lower fixture 222 is provided with a connector mounting groove and a mounting fixing hole, an intermediate connector is provided above the rotating shaft protective cover 27, and the lower fixture 222 is fixed to the top of the rotating shaft 21 through the intermediate connector. The upper fixture 221 and the lower fixture 222 are respectively provided with magnetic blocks inside, thereby forming a magnetically retractable structure, which can efficiently position and fix the workpiece and quickly disassemble and unload the material, and has high production efficiency. Among them, it should be noted that the positioning structure 22, in addition to the structure of the above-mentioned positioning fixture, can also include, for example, but is not limited to structures such as a fixture that can be penetrated into the workpiece to fix and clamp the workpiece, as long as the function of fixing and positioning the workpiece can be achieved, and the present application is not limited thereto.

[0075] In some specific embodiments, the fixed block 24 may be located between the positioning structure 22 and the first magnetic ring 23. The workpiece fixing assembly 2 also includes a plurality of stabilizing bearings 26 axially spaced apart on the rotating shaft 21. The stabilizing bearings 26 are located between the fixed block 24 and the first magnetic ring 23. In this way, the rotation stability can be ensured when the product rotates at a high speed, and the first magnetic ring 23 can also maintain a distance from the second magnetic ring 41 during rotation.

[0076] Furthermore, if Figure 1 As shown, the spraying equipment may further include a baking component 5, and the baking component 5 is arranged downstream of the spraying component 3 corresponding to the multi-station conveying mechanism. The conveying line 11 is provided with a first conveying section, a reversing conveying section and a second conveying section connected in sequence, and the baking component 5 covers the downstream area of ​​the first conveying section, the reversing conveying section and the upstream area of ​​the second conveying section. In this way, by arranging the baking component 5 in the turning area of ​​the conveying line 11, the baking action area of ​​the baking component 5 is increased, so that the baking effect is better and the production efficiency is higher.

[0077] Furthermore, if Figure 1 and Figure 2As shown, the spraying assembly 3 can be arranged in the spraying operation area of ​​the first conveying section, the second conveying section includes a spraying influence area arranged opposite to the spraying operation area of ​​the first conveying section, and the spraying assembly 3 includes a spraying hood 33, a finished product protection hood 34 and a chain hood 35. Among them, the spraying hood 33 can cover the spraying operation area on the first conveying section and the spraying influence area of ​​the second conveying section. In this way, by expanding the hood setting area of ​​the spraying hood 33, it is convenient to diffuse the spray, avoid affecting the spraying operation, and ensure the spraying effect of the workpiece. In addition, the finished product protection hood 34 can cover the spraying influence area of ​​the second conveying section and be located in the spraying hood 33, so that the influence of the spray on the finished product can be avoided. The chain hood 35 can cover the chain in the spraying operation area of ​​the first conveying section and be located in the spraying hood 33, so as to protect the chain of the conveyor line 11. In addition, since the present equipment adopts a cyclic operation mode, a spray material channel for feeding and discharging is provided in the spraying hood 33 and a baking channel for feeding and discharging is provided in the hood body of the baking assembly 5.

[0078] In summary, the spraying equipment of the utility model can realize the fully automatic high-quality spraying and baking operation of the middle frame of the watch, and the overall structure is simple and reasonable, and the manufacturing cost and maintenance cost are low.

[0079] In the description of the present application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present application, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0080] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0081] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0082] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A multi-station conveying mechanism, characterized in that: include: A conveying assembly (1), comprising a conveying line (11); A plurality of workpiece fixing assemblies (2) are provided, wherein the plurality of workpiece fixing assemblies (2) are sequentially arranged on the conveying line (11) at intervals along the conveying direction, each group of the workpiece fixing assemblies (2) having a rotating end and a positioning structure (22) arranged on the rotating end, wherein the positioning structure (22) is adapted to the workpiece; and A rotation drive assembly (4) is arranged on one side of the conveyor line (11) and comprises a plurality of drive ends corresponding to the positioning structure (22), wherein the drive ends cooperate with the rotation ends to form a non-contact rotation transmission structure.

2. The multi-station conveying mechanism according to claim 1, characterized in that: The rotating end comprises a rotating shaft (21) rotatably connected to the conveying line (11), the positioning structure (22) is arranged on the rotating shaft (21), and the rotating shaft (21) is also provided with a first magnetic ring (23) that rotates synchronously, and the driving end comprises a second magnetic ring (41) and a rotating driving unit, the rotating driving unit is connected to the second magnetic ring (41) in a transmission manner, and the second magnetic ring (41) and the first magnetic ring (23) are arranged in a counterposition and cooperate to form a non-contact rotating transmission structure.

3. The multi-station conveying mechanism according to claim 2, characterized in that: The rotation axis of the first magnetic ring (23) and the rotation axis of the second magnetic ring (41) are in a cross shape.

4. The multi-station conveying mechanism according to claim 1, characterized in that: The conveyor line (11) is provided with a plurality of connection terminals (111) which are spaced apart in sequence, a plurality of groups of the workpiece fixing components (2) correspond one-to-one to the plurality of connection terminals (111), and each group of the workpiece fixing components (2) can be detachably connected to the connection terminals (111).

5. The multi-station conveying mechanism according to claim 4, characterized in that: Each group of the workpiece fixing components is provided with a fixing block (24), and a fixing groove is arranged on one side of the fixing block (24) connected to the connecting terminal (111).

6. The multi-station conveying mechanism according to any one of claims 1 to 5, characterized in that: The positioning structure (22) comprises an upper jig (221) and a lower jig (222), wherein the upper jig (221) and the lower jig (222) are detachably connected, and the outer peripheral walls of the upper jig (221) and the lower jig (222) which are close to each other and cooperate with each other jointly define a fixing groove (223) adapted to the workpiece.

7. A spraying device, characterized in that: include: The multi-station conveying mechanism according to any one of claims 1 to 6; and A spraying assembly (3), wherein the spraying assembly (3) comprises a plurality of nozzles, wherein the nozzles face the positioning structure (22) on the multi-station conveying mechanism.

8. The spraying equipment according to claim 7, characterized in that: The nozzles include a plurality of upper nozzles (31) and a plurality of side nozzles (32), and the upper nozzles (31) and the side nozzles (32) are arranged along the conveying direction of the multi-station conveying mechanism.

9. The spraying equipment according to claim 7 or 8, characterized in that: The spraying angle of the nozzle can be adjusted.

10. The spraying equipment according to claim 9, characterized in that: The spraying equipment also includes: The baking component (5) is arranged downstream of the spraying component (3) corresponding to the multi-station conveying mechanism.

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