Spraying protection mechanism and spraying equipment

Abstract

The utility model relates to a spraying protection mechanism and spraying device.The spraying protection mechanism is used for protecting the non-machining face of a to-be-machined workpiece and comprises a plurality of film supply modules and a film pressing module, each film supply module is provided with a protection film, and each protection film is provided with a protection section; and the multiple film pressing modules and the multiple protection sections are arranged in a one-to-one correspondence mode, each film pressing module is provided with a movably-arranged film pressing end, the film pressing ends and the protection sections are oppositely arranged, and the multiple film pressing ends drive the multiple protection sections to define a protection space for protecting the designated non-machining face. According to the spraying protection mechanism, the protection sections of the protection film can be extruded and attached to the edge of the to-be-machined part through the movably-arranged film pressing end, the spraying protection space is defined by the multiple extruded and deformed protection sections, and due to the fact that no gap exists between the non-machined face and the surfaces of the protection sections, printing ink can be prevented from splashing or flowing to the non-machined face; and high-quality spraying can be achieved, secondary treatment is not needed, and the production efficiency can be improved.

Description

Technical Field

[0001] The present application relates to the field of spraying technology, and in particular to a spraying protection mechanism and a spraying device. Background Art

[0002] In the production process of parts, it is often necessary to spray on one or more processed surfaces of the workpiece. During the spraying process, if no protective measures are set on other non-processed surfaces, ink particles during spraying will splash onto the non-processed surfaces and be difficult to remove.

[0003] Take the processing of mobile phone cover plates as an example. When the front of the cover plate needs to be sprayed, since there are no protective measures on the edges and sides of the cover plate, the ink particles in the spraying process will splash to the non-spraying area, and the unsolidified ink on the front of the cover plate will also flow to the sides of the cover plate, causing ink overflow in the non-spraying area. After the workpiece is baked and the ink is solidified, it is necessary to manually scrape the ink from the non-spraying area with tools such as blades (i.e. secondary processing). The cleaning is difficult and the cleaning efficiency is low, which has an adverse effect on the improvement of the workpiece production efficiency. Utility Model Content

[0004] The present application provides a spray protection mechanism and a spray equipment to solve the technical problem that the spray process in the prior art cannot protect the non-spraying area of ​​the workpiece, resulting in the ink splashing or flowing to the non-spraying area being difficult to remove, thereby affecting the production efficiency of the workpiece.

[0005] In a first aspect, the present application provides a spray protection mechanism for protecting a non-processing surface of a workpiece to be processed, comprising:

[0006] A film supply module, the number of which is multiple, each of which is provided with a protective film, and the protective film has a protective section;

[0007] The film pressing module comprises a plurality of film pressing modules and a plurality of protective sections arranged one by one. The film pressing module comprises a movable film pressing end, the film pressing end and the protective section are arranged opposite to each other, and the plurality of film pressing ends drive the plurality of protective sections to enclose and form a protective space for protecting the designated non-processing surface.

[0008] Optionally, the film supply module includes a mounting frame, a feed roll, a take-up roll and a guide member, the feed roll, the take-up roll and the guide member are all rotatably arranged on the mounting frame, and the protective film is sequentially wound around the feed roll, the guide member and the take-up roll.

[0009] Optionally, the film pressing module is arranged on a mounting frame;

[0010] There are multiple guide members, which are arranged in sequence along the circumference of the film pressing module. The protection section is arranged between two adjacent guide members and faces the non-processing surface of the workpiece to be processed.

[0011] Optionally, in the width direction of the protection segment, the size of the film pressing end is smaller than or equal to the size of the protection segment.

[0012] Optionally, a side of the lamination end close to the protection section has a positioning surface, and a shape of the positioning surface matches the corresponding non-machined surface.

[0013] Optionally, the film pressing module includes a driving member connected to the film pressing end, and the driving member drives the film pressing end to reciprocate along a first preset direction.

[0014] Optionally, the spray protection mechanism further includes a moving module, which drives the film supply module to reciprocate along a second preset direction.

[0015] Optionally, there are multiple mobile modules, and the multiple mobile modules are arranged in one-to-one correspondence with the multiple film supply modules; the slide rails of the multiple mobile modules are distributed in a divergent shape along the circumference of the protection space.

[0016] In a second aspect, the present application provides a spraying device, including the spraying protection mechanism provided in the first aspect of the present application, and also including a workpiece support module, wherein the workpiece support module is arranged in the protection space.

[0017] Optionally, the spraying equipment further comprises a spraying robot having a movably arranged working end.

[0018] The above technical solution provided by the embodiment of the present application has the following advantages compared with the prior art:

[0019] The spray protection mechanism provided in the embodiment of the present application can extrude and adhere the protection segment of the protection film to the designated non-machined surface of the edge of the workpiece to be processed through the movably arranged film pressing end. Multiple extruded and deformed protection segments enclose a spray protection space for the workpiece to be processed. Since there is no gap between the non-machined surface on the side of the workpiece edge and the surface of the protection segment, ink splashing or flowing to the non-machined surface can be avoided, and high-quality spraying can be achieved. After spraying is completed, no ink residue will remain on multiple non-machined surfaces in the non-spraying area, and no secondary processing is required, which is beneficial to improving the production efficiency of the workpiece to be processed. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0022] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0023] Figure 1 A schematic diagram of the use of the spray protection mechanism provided in the embodiment of the present application;

[0024] Figure 2 A protection principle diagram of the spray protection mechanism provided in the embodiment of the present application;

[0025] Figure 3 A schematic diagram of a partial structure of a spray protection mechanism provided in an embodiment of the present application;

[0026] Figure 4 Schematic diagram of the formation of the protection space provided in the embodiment of the present application Figure 1 ;

[0027] Figure 5 Schematic diagram of the formation of the protection space provided in the embodiment of the present application Figure 2 ;

[0028] Figure 6 A schematic diagram of the structure of the spraying equipment provided in an embodiment of the present application (the housing is not shown);

[0029] Figure 7 Provided in the embodiments of this application Figure 6 A top view of

[0030] Figure 8 A schematic diagram of the structure of a workpiece support module provided in an embodiment of the present application;

[0031] Fig. 9 A schematic diagram of the structure of the spraying robot provided in the embodiment of the present application;

[0032] Fig.10 A schematic diagram of the appearance of the spraying equipment provided in an embodiment of the present application.

[0033] Description of reference numerals:

[0034] 1. Film supply module; 11. Mounting frame; 12. Unwinding reel; 13. Rewinding reel; 14. Guide piece;

[0035] 2. Protective film; 21. Protective section; 21a. First protective section; 21b. Second protective section; 21c. Third protective section; 21d. Fourth protective section;

[0036] 3. Film pressing module; 31. Film pressing end; 31a. First film pressing end; 31b. Second film pressing end; 31c. Third film pressing end; 31d. Fourth film pressing end; 311. Positioning surface; 32. Driving member; 33. Fixing frame;

[0037] 4. Mobile module; 41. Slide rail; 42. Driving assembly;

[0038] 5. Workpiece support module; 51. Support frame; 52. Carrier;

[0039] 6. Spraying robot; 61. Working end; 62. First robotic arm; 63. Second robotic arm; 64. Third robotic arm; 65. Base;

[0040] 7. Workbench;

[0041] 8. Shell;

[0042] 9. Workpiece; 9a. First workpiece; 9b. Second workpiece;

[0043] 10. Spray coating. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0045] The disclosure below provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0046] For ease of description, spatial relative terms may be used herein to describe the relative positional relationship or movement of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", "front", "back", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure undergoes a position flip or a posture change or a motion state change, then these directional indications also change accordingly, for example: an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative descriptors used herein are interpreted accordingly.

[0047] In the following embodiments, a workpiece 9 is used as a workpiece to be processed. In order to solve the technical problem that the spraying process in the prior art cannot protect the non-spraying area of ​​the workpiece 9, resulting in the ink splashing or flowing to the non-spraying area being difficult to remove, thereby affecting the production efficiency of the workpiece 9, the present application provides a spray protection mechanism and a spraying equipment, which can adhere the protection segment 21 of the protective film 2 to the edge of the workpiece 9 through the film pressing end 31, and multiple extruded and deformed protection segments 21 enclose a spray protection space for the workpiece 9 to prevent ink from splashing or flowing to the non-spraying area, thereby achieving high-quality spraying, which is beneficial to improving the production efficiency of the workpiece 9.

[0048] For ease of explanation, in the following embodiments, the workpiece 9 can be a plate-like piece made of glass or other materials. The front side of the workpiece 9 is used as the surface to be sprayed (i.e., the surface to be processed), and the other surfaces are used as non-sprayed surfaces (i.e., non-processed surfaces), including the circumferential edge sides of the workpiece 9 and the back side of the workpiece 9.

[0049] See also Figures 1 to 10 In a first aspect, an embodiment of the present application provides a spray protection mechanism for protecting the non-machined surface of a workpiece to be processed, including a film supply module 1 and a film pressing module 3. There are multiple film supply modules 1, and each film supply module 1 is provided with a protective film 2. The protective film 2 has a protective segment 21. The protective segment 21 is used to be arranged opposite to the edge side (non-spraying surface) of the workpiece 9. Since the protective film 2 has elastic deformation ability, it is beneficial to achieve the fitting of the surface of the protective segment 21 with the edge side of the workpiece 9, avoiding the gap between the protective segment 21 and the edge side of the workpiece 9, causing the ink on the front of the workpiece 9 to overflow to the edge side of the workpiece 9.

[0050] Multiple film pressing modules 3 are arranged in one-to-one correspondence with multiple protection segments 21. The film pressing module 3 has a movable film pressing end 31, which is arranged opposite to the protection segment 21. When the film pressing end 31 pushes the protection segment 21 to the edge side of the workpiece 9 and makes the protection segment 21 fit with the edge side of the workpiece 9, the multiple film pressing ends 31 can drive the multiple protection segments 21 to enclose and form a protection space for protecting the designated non-processing surface. The protection space matches the contour edge of the front side of the workpiece 9 and can be used to protect the circumferential edge side of the workpiece 9. At the same time, since the edge side of the workpiece 9 fits with the protection segment 21, the ink cannot flow to the back of the workpiece 9, and the back of the workpiece 9 can also be protected by the spray protection mechanism, such as Figure 1 , Figure 4 and Figure 5 shown.

[0051] Please note that Figure 2 When the plurality of protection segments 21 are attached to the edge side of the workpiece 9 under the action of the plurality of film pressing ends 31, there is no gap between the edge side of the workpiece 9 and the protection segment 21, and the front side of the workpiece 9 can be sprayed at this time to form a spray layer 10 on the front side of the workpiece 9. During the spraying process, the film pressing end 31 always presses the protection segment 21 against the edge side of the workpiece 9 to prevent ink from splashing or flowing to the non-processing surface of the non-spraying area, and after spraying, the edge of the workpiece 9 no longer overflows ink to the straight position.

[0052] In the above embodiment, after one spraying operation is completed, there will be residual ink on the protection segment 21. In order to facilitate the next spraying protection operation, the protection segment 21 needs to be quickly replaced.

[0053] In order to solve the above problem, the protection section 21 can be detachably arranged on the film supply module 1, or can be continuously supplied through a material roll.

[0054] In some preferred embodiments of this application, please refer to Figure 3 The film supply module 1 includes a mounting frame 11, a feed roll 12, a take-up roll 13 and a guide member 14. The feed roll 12, the take-up roll 13 and the guide member 14 are all rotatably arranged on the mounting frame 11. The protective film 2 is sequentially wound around the feed roll 12, the guide member 14 and the take-up roll 13 to realize the setting and tensioning of the protective film 2. After one spraying is completed, the feed roll 12 and the take-up roll 13 rotate synchronously, and the protective segment 21 contaminated by ink is moved to the take-up roll 13, and the clean film segment on the feed roll 12 is moved to a position opposite to the film pressing end 31 as the protective segment 21 for the next spraying. The protective segment 21 can be quickly replaced, which is beneficial to improving the production efficiency of the workpiece 9.

[0055] In the above embodiment, the film pressing module 3 and the film supply module 1 can be respectively arranged on the workbench 7 or the ground, or the film pressing module 3 can be arranged on the film supply module 1. However, when the film pressing module 3 and the film supply module 1 can be respectively arranged on the workbench 7 or the ground, the film pressing end 31 needs to be adjusted in position before pushing the protection section 21, so that the film pressing end 31 and the protection section 21 are aligned, and then the film pressing end 31 is moved toward the direction close to the protection section 21, so as to facilitate the protection section 21 to be pressed against the edge side of the workpiece 9, and the adjustment process is relatively cumbersome.

[0056] In some preferred embodiments of this application, please refer to Figure 3 , the film pressing module 3 is arranged on the mounting frame 11; there are multiple guide members 14, which are arranged in sequence along the circumference of the film pressing module 3, and the protection segment 21 is arranged between two adjacent guide members 14 and faces the non-processing surface of the workpiece to be processed, so that the film pressing end 31 can be arranged opposite to the side of the protection segment 21 away from the workpiece 9. By assembling the film pressing module 3 on the mounting frame 11, the alignment between the film pressing end 31 and the protection segment 21 can be directly achieved without repeated adjustment. When spraying, it is only necessary to push the protection segment 21 out and press it against the edge side of the workpiece 9 by moving the film pressing end 31. The operation process is simple, and it is also convenient to arrange the spray protection mechanism, which is conducive to making the structure of the spray protection mechanism more compact.

[0057] In some embodiments of this application, please refer to Figure 4 and Figure 5 In the width direction of the protective segment 21, the size of the laminating end 31 is less than or equal to the size of the protective segment 21, so that the laminating end 31 can be completely pressed against the back of the protective segment 21, so that the protective segment 21 is in a taut state, avoiding the presence of wrinkles and gaps between the protective segment 21 and the edge side of the workpiece 9, which would cause the ink to overflow into the non-spraying area.

[0058] In the thickness direction of the workpiece 9, the size of the film pressing end 31 is larger than the thickness of the workpiece 9, so that the film pressing end 31 and the protection section 21 can block the ink, thereby forming a spray layer 10 with a certain thickness on the workpiece 9. Figure 2 shown.

[0059] In the above embodiment, the contour shape of the front side of the workpiece 9 can be a circle, a triangle, a rectangle, etc. Each protective segment 21 abuts against the edge side corresponding to a side of the contour shape, and a protective space matching the contour shape of the front side is formed by deformation and enclosure of multiple protective segments 21.

[0060] In order to make the protection section 21 better fit on the edge side of the workpiece 9, in some embodiments of the present application, the side of the film pressing end 31 close to the protection section 21 has a positioning surface 311, and the shape of the positioning surface 311 matches the corresponding non-machined surface. Specifically, the positioning surface 311 matches the edge side of the workpiece 9. When the positioning surface 311 squeezes the protection section 21 to fit on the edge side of the workpiece 9, the deformation of the protection section 21 can be made the same as the shape of the edge side of the workpiece 9, such as Figure 4 and Figure 5 shown.

[0061] As a specific embodiment of this application, please refer to Figure 4 When the first workpiece 9a is a rectangular workpiece and the four corners of the first workpiece 9a are right angles, the positioning surface 311 of the first lamination end 31a and the second lamination end 31b is a plane. When the positioning surface 311 pushes the first protective segment 21a and the second protective segment 21b to fit the edge side of the first workpiece 9a, a rectangular protective space can be enclosed.

[0062] As another specific embodiment of the present application, please refer to Figure 5 , when the second workpiece 9b is a rectangular workpiece 9 and the four corners of the second workpiece 9b are rounded, the positioning surface 311 is an inclined surface tangent to the rounded corner of the second workpiece 9b, and the positioning surfaces 311 on both sides of the third laminating end 31c squeeze the two sides of the third protection segment 21c to fit on the rounded corner of the second workpiece 9b. The middle of the third protection segment 21c is concave due to the mutual squeezing with the second workpiece 9b, so as to fit on the side of the edge of the second workpiece 9b. The positioning surfaces 311 on both sides of the fourth laminating end 31d squeeze the two sides of the fourth protection segment 21d to fit on the rounded corner of the second workpiece 9b. The middle of the fourth protection segment 21d is concave due to the mutual squeezing with the second workpiece 9b, so as to fit on the side of the edge of the second workpiece 9b, thereby enclosing and forming a rectangular protection space with rounded corners.

[0063] In the above embodiment, since the protective segment 21 has elastic deformation capability, it can be fitted with the edge side of the workpiece 9 under the dual action of the positioning surface 311 and the edge side of the workpiece 9, thereby preventing ink from overflowing from the gap between the protective segment 21 and the edge side of the workpiece 9.

[0064] In some embodiments of this application, please refer to Figure 3 The film pressing module 3 includes a driving member 32 connected to the film pressing end 31, and the driving member 32 drives the film pressing end 31 to move back and forth along the first preset direction, thereby realizing the relative movement between the film pressing end 31 and the protection section 21, and then realizing the pressing or releasing of the edge side of the workpiece 9. When the film pressing end 31 moves in a direction away from the workpiece 9, the protection section 21 rebounds to realize the separation from the edge side of the workpiece 9.

[0065] It should be noted that, in the above embodiment, the film pressing end 31 can achieve relative movement with the protective segment 21 by rotating or sliding, but the distance that the film pressing end 31 pushes the protective segment 21 by rotation is limited. Therefore, the present application preferably achieves relative movement between the film pressing end 31 and the protective segment 21 by sliding the film pressing end 31.

[0066] Specifically, the driving member 32 is a cylinder or a hydraulic cylinder, the telescopic end of the driving member 32 is connected to the film pressing end 31, and the first preset direction is a direction perpendicular to the edge side of the workpiece 9, so that the film pressing end 31 can be moved along Figure 2 When sliding in the left and right directions, the protection section 21 is pressed against or separated from the edge side of the workpiece 9.

[0067] In some embodiments of the present application, the film pressing module 3 also includes a fixed frame 33, which is fixedly connected to the mounting frame 11, and the driving member 32 is fixedly arranged on the fixed frame 33. When the film pressing end 31 is subjected to the force of the protective section 21, the fixed frame 33 can provide reverse support for the film pressing end 31.

[0068] In the above embodiment, in order to prevent the protective film 2 from being damaged when the deformation is too large, the moving stroke of the film pressing end 31 should not be set too large. This leads to a limited adjustment range of the size of the protective space. When taking and placing the workpiece 9 from the protective space, the robot or operator is likely to interfere with the protective film 2 or the film pressing module 3 and other components around the workpiece 9, which has certain limitations.

[0069] In order to solve the above problems, in some embodiments of the present application, please refer to Figure 1 and Figure 3 The spray protection mechanism also includes a moving module 4, which drives the film supply module 1 to move back and forth along the second preset direction to realize the opening and closing of the protection space. Specifically, when it is necessary to place the workpiece 9 in the protection space, the film supply modules 1 are moved away from each other, the protection space is opened, and the workpiece 9 to be sprayed can be conveniently placed. Then, the multiple film supply modules 1 are brought closer to each other until they reach a position close to each other but do not interfere with each other, and then the protection section 21 is pushed by the film pressing end 31 to enclose and form a protection space. After the spraying is completed, the multiple film supply modules 1 are moved away from each other again, the protection space is opened, and the sprayed workpiece 9 can be conveniently taken out. Specifically, the second preset direction is the length direction of the slide rail 41.

[0070] In some embodiments of this application, please refer to Figure 1 and Figure 7 There are multiple mobile modules 4, and the multiple mobile modules 4 are arranged in a one-to-one correspondence with the multiple film supply modules 1; the slide rails 41 of the multiple mobile modules 4 are distributed divergently along the circumference of the protection space, which facilitates the opening and closing of the protection space while avoiding sliding interference between the film supply modules 1.

[0071] In some embodiments of the present application, the movable module 4 further includes a driving assembly 42 , wherein a driving motor in the driving assembly 42 is disposed at one end of the slide rail 41 for driving the mounting frame 11 in the film supply module 1 to slide along the length direction of the slide rail 41 .

[0072] It should be noted that the above-mentioned movable module 4 can not only be used to realize the opening and closing of the protection space, but also can adjust the initial spacing between each protection segment 21 according to the size of the workpiece 9, and can be suitable for spray protection of workpieces 9 of different shapes and sizes.

[0073] The second aspect of the embodiment of the present application provides a spraying device, including the spraying protection mechanism in the above embodiment, and also including a workpiece support module 5, which is arranged in the protection space, for placing the workpiece 9 to be sprayed and supporting it at the bottom of the workpiece 9, so that the edge side of the workpiece 9 is arranged opposite to the protection section 21.

[0074] It should be noted that in the prior art, when a carrier with a workpiece 9 fixture is used to place the workpiece 9 to be sprayed, there is an inevitable gap between the inner wall of the workpiece 9 fixture and the edge side of the workpiece 9 (if there is no gap, the workpiece 9 cannot be taken out of the fixture). When the spraying is completed and the ink is solidified, when the workpiece 9 is taken out of the fixture, the edge of the spray layer 10 (i.e., the gap) will be pulled and the oil skin will be poor. The edge of the spray layer 10 is rough and needs to be treated again.

[0075] In the present application, the workpiece supporting module 5 is only supported on the bottom of the workpiece 9, and there is no gap between the edge side of the workpiece 9. The surface of the protective section 21 is smooth. When the protective section 21 is pressed against the edge side of the workpiece 9, there is no gap between the edge side of the workpiece 9 and the protective section 21. The ink will not splash or flow to the non-spraying area. Before baking, the protective section 21 is separated from the edge of the spray layer 10, which will not cause the spray layer 10 to have poor oil skin or rough edges after baking.

[0076] In some embodiments of the present application, the workpiece support module 5 includes a connected support frame 51 and a carrier 52, wherein the support frame 51 is used to raise the height of the workpiece 9 so that the edge side of the workpiece 9 reaches a position opposite to the protection section 21. An adsorption structure can be provided on the carrier 52 to adsorb and fix the back of the workpiece 9 to prevent the workpiece 9 from being pushed by the protection section 21 and the film pressing end 31, thereby affecting the formation of the protection space and the reliability of the spray protection. In order to facilitate the overall movement of the carrier 52 and the workpiece 9 into the oven after the ink is sprayed, the carrier 52 and the support frame 51 are preferably detachably connected.

[0077] It should be noted that when the projection of the workpiece 9 in the vertical direction is larger than the projection of the carrier 52 in the vertical direction, the lamination end 31 only abuts against the circumferential edge side of the workpiece 9 , and the carrier 52 only supports the workpiece 9 .

[0078] When the projection of the workpiece 9 in the vertical direction coincides with the carrier 52, the laminating end 31 abuts against the circumferential edge side of the workpiece 9 and the circumferential edge side of the carrier 52 at the same time, which can increase the overall abutment area between the laminating end 31 and the workpiece 9 and the carrier 52, and is beneficial to improving the stability of the abutment.

[0079] In some embodiments of this application, please refer to Figure 6 , Figure 7 and Fig. 9 The spraying equipment also includes a spraying robot 6, which has a movable working end 61 and can be used to fully cover the front of the workpiece 9 with spraying.

[0080] Specifically, the working end 61 has at least one ink nozzle, which atomizes the ink by air pressure and uniformly sprays it onto the surface to be sprayed of the workpiece 9 in the protective space. Figure 7 and Fig. 9 shown.

[0081] In some embodiments of the present application, the spraying robot 6 is a multi-axis robot with multiple degrees of freedom, which can achieve ink spraying without dead angles, and is beneficial to improving the spraying quality of the spraying equipment.

[0082] As a specific embodiment of the present application, the spraying robot 6 also includes a first mechanical arm 62, a second mechanical arm 63, a third mechanical arm 64 and a base 65, wherein the working end 61 is movably arranged at the first end of the first mechanical arm 62, and the second end of the first mechanical arm 62 is rotatably connected to the first end of the second mechanical arm 63, so that the first mechanical arm 62 can rotate in a vertical plane. The second end of the second mechanical arm 63 is rotatably connected to the first end of the third mechanical arm 64, so that the second mechanical arm 63 can also rotate in a vertical plane. The second end of the third mechanical arm 64 is rotatably arranged on the base 65, so that the third mechanical arm 64 can rotate in a horizontal plane, so that the working end 61 has multiple degrees of freedom in multiple directions, thereby realizing efficient spraying of the workpiece 9 inside the protective space.

[0083] In some embodiments of the present application, the spraying equipment further includes a workbench 7, which can be used to set the spraying protection mechanism, the workpiece support module 5 and the spraying robot 6, so that the entire spraying equipment is connected as a whole. The bottom of the workbench 7 is provided with rollers to facilitate the movement of the spraying equipment according to production needs, such as Figure 6 shown.

[0084] In some embodiments of this application, please refer to Fig.10In order to prevent ink particles from overflowing into the production area during the spraying process, the spraying equipment also includes a shell 8. The spraying protection mechanism, the spraying robot 6 and the workbench 7 are all arranged inside the shell 8, which can be used to separate the production area from the outside.

[0085] See also Figures 1 to 10 In some embodiments of the present application, the working method of the above-mentioned spraying equipment is as follows:

[0086] Step 1: The moving module 4 drives the film supply module 1 to move, so that the protective space is opened, and the workpiece 9 to be sprayed is placed on the carrier 52 of the workpiece support module 5 .

[0087] Step 2: The moving module 4 drives the film supply module 1 to move, so that the multiple film supply modules 1 move to positions that are close to each other and do not interfere with each other; under the action of the driving member 32, the multiple film pressing ends 31 push the protective segment 21 to move toward the workpiece 9, so that the multiple protective segments 21 around the workpiece 9 abut against the edge side of the workpiece 9 to form a protective space.

[0088] Step 3: The spraying robot 6 moves the working end 61 to the top of the protective space and sprays the front of the workpiece 9. During the spraying process, the position of the working end 61 is adjusted by the cooperation of multiple robotic arms, thereby achieving uniform spraying on the front of the workpiece 9.

[0089] Step 4: After spraying is completed, the spraying robot 6 moves the working end 61 away from the protection space, the film pressing end 31 moves in a direction away from the workpiece 9 , and the protection section 21 rebounds and leaves the edge side of the workpiece 9 .

[0090] Step 5: Take the workpiece 9 and the carrier 52 out of the workpiece support module 5 and put them into a baking oven to dry the spray layer 10 .

[0091] Step 6: The unwinding roll 12 and the receiving roll 13 rotate synchronously to achieve the replacement of the protection section 21, so as to facilitate the next spray protection.

[0092] It should be noted that the opening and closing of the protective space in step 1 and step 2 can also be achieved by moving the film pressing end 31. When it is necessary to replace a workpiece 9 of another size for spraying (the size change is large and exceeds the sliding stroke of the driving member 32), the distance between the protective segments 21 can be adjusted by moving the module 4. If the size of the side edge of the workpiece 9 exceeds the width of the protective segment 21, the type of the film pressing end 31 and the protective film 2 can also be replaced.

[0093] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0094] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0095] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A spray protection mechanism for protecting the non-processing surface of a workpiece, characterized in that: include: A film supply module (1), wherein the number of the film supply modules (1) is plural, each of the film supply modules (1) is provided with a protective film (2), and the protective film (2) has a protective section (21); A film pressing module (3), wherein a plurality of the film pressing modules (3) and a plurality of the protective segments (21) are arranged in a one-to-one correspondence, wherein the film pressing module (3) has a movably arranged film pressing end (31), wherein the film pressing end (31) and the protective segment (21) are arranged relative to each other, and wherein the plurality of film pressing ends (31) drive the plurality of protective segments (21) to enclose and form a protective space for protecting the designated non-processing surface.

2. The spray protection mechanism according to claim 1, characterized in that: The film supply module (1) comprises a mounting frame (11), a feed roll (12), a take-up roll (13) and a guide member (14); the feed roll (12), the take-up roll (13) and the guide member (14) are all rotatably arranged on the mounting frame (11); and the protective film (2) is sequentially wound around the feed roll (12), the guide member (14) and the take-up roll (13).

3. The spray protection mechanism according to claim 2, characterized in that: The film pressing module (3) is arranged on the mounting frame (11); The number of the guide members (14) is multiple, and the multiple guide members (14) are arranged in sequence along the circumference of the film pressing module (3), and the protective section (21) is arranged between two adjacent guide members (14) and faces the non-processing surface of the workpiece to be processed.

4. The spray protection mechanism according to claim 1, characterized in that: In the width direction of the protection segment (21), the size of the film pressing end (31) is smaller than or equal to the size of the protection segment (21).

5. The spray protection mechanism according to claim 1, characterized in that: The film pressing end (31) has a positioning surface (311) on one side close to the protection section (21), and the shape of the positioning surface (311) matches the corresponding non-processing surface.

6. The spray protection mechanism according to claim 1, characterized in that: The film pressing module (3) comprises a driving member (32) connected to the film pressing end (31), and the driving member (32) drives the film pressing end (31) to move back and forth along a first preset direction.

7. The spray protection mechanism according to any one of claims 1 to 6, characterized in that: The spray protection mechanism further comprises a moving module (4), wherein the moving module (4) drives the film supply module (1) to move back and forth along a second preset direction.

8. The spray protection mechanism according to claim 7, characterized in that: There are multiple movable modules (4), and the multiple movable modules (4) are arranged in a one-to-one correspondence with the multiple film supply modules (1); the slide rails (41) of the multiple movable modules (4) are distributed in a divergent manner along the circumference of the protective space.

9. A spraying equipment, comprising the spraying protection mechanism according to any one of claims 1 to 8, characterized in that: It also comprises a workpiece supporting module (5), wherein the workpiece supporting module (5) is arranged in the protective space.

10. The spraying equipment according to claim 9, characterized in that: The spraying equipment further comprises a spraying robot (6), wherein the spraying robot (6) has a movably arranged working end (61).

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