Feeder and feeding method

Abstract

The present invention provides a feeding machine, including a feeding device, a dust removal device, a material transfer device, a positioning device and a control device, wherein the control device is electrically connected to the feeding device, the dust removal device, the material transfer device and the positioning device respectively, the feeding device is used to transport the material to the dust removal device, the dust removal device is used to clean the dust on the material, the material transfer device is used to transfer the material cleaned by the dust removal device to the subsequent assembly process, the positioning device is used to position and calibrate the material on the material transfer device, and the control device is used to control the working sequence of the feeding device, the dust removal device, the material transfer device and the positioning device. The present invention also provides a feeding method, which is performed by the above-mentioned feeding machine. The feeding machine provided by the present invention feeds the back panel through the feeding machine, so that the back panel can be automatically fed, thereby achieving a good assembly effect of the backlight source, and at the same time, dust removal and positioning can be performed to ensure a high yield of the backlight source.

Description

Technical Field

[0001] The present invention belongs to the technical field of backlight source assembly, and more specifically, relates to a loading machine and a loading method. Background Art

[0002] The backlight source is mainly composed of a light source, a light guide plate, an optical film, a backplane and a rubber frame. Since the structure of the backlight source is relatively complex, its assembly process is relatively cumbersome. At present, there are assembly machines that assemble the light source, light guide plate, optical film, backplane and rubber frame into a backlight source. However, when the assembly machine is assembling, the backplane is manually loaded. Manual loading not only greatly affects the assembly efficiency of the backlight source, but also cannot be accurately positioned, resulting in unclear assembly position of the backplane and low yield. Here, the backplane is prone to dust during the processing process, resulting in dust on the entire backlight source after assembly, and poor display effect. Summary of the invention

[0003] The object of the present invention is to provide a loading machine to solve the technical problem in the prior art that manual loading of back panels leads to low backlight source assembly efficiency and low yield.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a feeding machine is provided, including a feeding device, a dust removal device, a material transfer device, a positioning device and a control device, the control device is electrically connected to the feeding device, the dust removal device, the material transfer device and the positioning device respectively, the feeding device is used to transport the material to the dust removal device, the dust removal device is used to clean the dust on the material, the material transfer device is used to transfer the material cleaned by the dust removal device to a subsequent assembly process, the positioning device is used to position and calibrate the material on the material transfer device, and the control device is used to control the working sequence of the feeding device, the dust removal device, the material transfer device and the positioning device.

[0005] Optionally, the feeding device comprises:

[0006] A material loading line, wherein at least two material tray groups are provided on the material loading line and are used to sequentially convey the material tray groups;

[0007] A lifting mechanism is used to vertically convey the material tray group conveyed by the feeding assembly line;

[0008] A horizontal transfer mechanism, used for transferring the material to the dust removal device;

[0009] Wherein, the material tray group includes a plurality of vertically cross-stacked material trays, and the material tray includes an empty tray and materials arranged in the empty tray.

[0010] Optionally, the loading line includes two conveyor belts arranged at intervals, and the lifting mechanism includes three plug plates arranged at intervals. The three plug plates are staggered with the two conveyor belts and can insert the material tray group from the two conveyor belts and transport them vertically.

[0011] Optionally, the loader further includes a tray recovery device for recovering the empty trays.

[0012] Optionally, the horizontal transfer mechanism includes a horizontally movable transfer arm, and the transfer arm is provided with a first grip and a second grip that are spaced apart along a first direction. The first grip and the second grip move horizontally synchronously under the drive of the transfer arm. The first grip is used to move the material to the dust removal device, and the second grip is used to move the empty tray to the tray recovery device.

[0013] Optionally, the dust removal device comprises:

[0014] The first dust removal platform is used to place materials that need dust removal;

[0015] A first roller mechanism, comprising a first roller, wherein the first roller can roll on the material along a second direction to remove dust on the material;

[0016] An adhesive tape dust removal mechanism is provided on the side of the first dust removal platform along the second direction and is used to remove dust on the first roller;

[0017] The second direction is perpendicular to the first direction.

[0018] Optionally, the dust removal device further includes a flipping mechanism, which is used to receive materials conveyed from an external conveying device and flip the materials 180° so that the materials are placed on the first dust removal platform with the inner side facing upward.

[0019] Optionally, the dust removal device also includes a second dust removal platform and a second roller mechanism, the first dust removal platform can flip the material thereon 180° so that the material is placed on the second dust removal platform with the outer side facing upward; the second roller mechanism includes a second roller, the second roller can roll on the material along the second direction to remove dust on the outside of the material, and the second roller can be moved to the tape dust removal mechanism to remove dust on the second roller.

[0020] Optionally, the material transfer device includes a manipulator having a third gripper at the end of the manipulator, the positioning device includes two cameras for obtaining the position of the material on the manipulator and sending the position information to the control device, the control device is used to send correct position data to the manipulator, and the manipulator adjusts the material position according to the correct position data.

[0021] The present invention also provides a feeding method, which is performed by the above-mentioned feeding machine, comprising the following steps:

[0022] S10: transferring the material to the dust removal device through the feeding device;

[0023] S20: Clean the dust on the material through the dust removal device;

[0024] S30: transferring the dust-removed material to a subsequent assembly process through a material transfer device, and accurately correcting the position of the material through a positioning device during the transfer process;

[0025] The working sequence of steps S10, S20 and S30 is controlled by the control device.

[0026] The beneficial effect of the feeder provided by the present invention is that: compared with the prior art, the feeder of the present invention includes a feeder device, a dust removal device, a material transfer device, a positioning device and a control device, so that the material can be automatically fed through the feeder device, the dust removal device and the material transfer device, thereby improving the assembly efficiency of the host computer (backlight source). The dust removal device is used to clean the material from dust, ensuring that the material is clean before loading, and then the host computer (backlight source) is clean after assembly, and the use effect is good. In addition, the positioning device is used to position and calibrate the material before transferring it to the subsequent assembly process, so that the material feeding position is accurate, and then the material assembly position is accurate, ensuring that the host computer (backlight source) assembly yield is high and the cost is reduced. The feeding method provided in the embodiment of the present invention can achieve a high backlight source assembly effect and a high yield. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0028] Figure 1 A schematic diagram of the front side of a material loader provided in an embodiment of the present invention;

[0029] Figure 2A schematic diagram of the rear side of a material loader provided in an embodiment of the present invention;

[0030] Figure 3 for Figure 1 Structural diagram of the middle and upper material production line;

[0031] Figure 4 for Figure 1 Structural diagram of the lifting mechanism;

[0032] Figure 5 for Figure 1 Structural diagram of the middle horizontal transfer mechanism;

[0033] Figure 6 for Figure 1 Schematic diagram of the structure of the dust removal device;

[0034] Figure 7 for Figure 6 The structural diagram of the flipping mechanism;

[0035] Figure 8 for Figure 6 A front view of the first dust removal platform and the second dust removal platform;

[0036] Fig. 9 for Figure 6 Schematic diagram of the back of the first dust removal platform and the second dust removal platform;

[0037] Fig.10 for Figure 6 A schematic diagram of the structure of the first roller mechanism;

[0038] Fig.11 for Figure 6 A schematic diagram of the structure of the second roller mechanism;

[0039] Fig.12 for Figure 6 Front view of the middle belt dust removal mechanism;

[0040] Fig.13 for Figure 6 The back diagram of the middle belt dust removal mechanism;

[0041] Fig.14 for Figure 6 Internal schematic diagram of the middle belt dust removal mechanism;

[0042] Fig.15 for Figure 1 The structural diagram of the material transfer device;

[0043] Fig.16 for Figure 2 Schematic diagram of the structure of the positioning device.

[0044] Among them, the reference numerals in the figure are:

[0045] 10-base frame; 20-feeding device; 30-dust removal device; 40-material transfer device; 50-positioning device; 60-tray recovery device; 70-touch screen; 80-display; 11-crossbeam; 12-longitudinal beam; 13-first mounting plate; 21-feeding assembly line; 22-lifting mechanism; 23-horizontal transfer mechanism; 31-first dust removal platform; 32-first roller mechanism 32; 33-tape dust removal mechanism; 34-turning mechanism; 35-second dust removal platform; 36-second roller mechanism; 41-third hand grip; 51-camera; 211-first motor; 212-first gear box; 213-first rotating shaft; 214-second rotating shaft; 215-driving wheel; 216-driven wheel; 217-conveyor belt; 218-guide rail; 219- The second mounting plate; 221-the second motor; 222-the second gearbox; 223-the first linear motion system; 224-the material picking seat; 231-the supporting foot; 232-the fourth mounting plate; 233-the third motor; 234-the third gearbox; 235-the second linear motion system; 236-the transfer arm; 237-the first hand grip; 238-the second hand grip; 239-the drag chain; 311-the second driving member; 312-the fourth rotating shaft; 313-the placing platform; 314-the fourth suction nozzle; 315-the second mounting seat; 321-the first roller; 322-the third linear motion system; 323-the first bracket; 324-the second mounting frame; 331-the first mounting frame; 332-the third driving member; 333-the first roller; 334-the second roller; 335-the first tensioning wheel; 336-second tensioning wheel; 337-tape; 338-support plate; 341-first driving member; 342-third rotating shaft; 343-flip plate; 344-third suction nozzle; 345-first mounting seat; 350-second through hole; 351-fifth suction nozzle; 361-second roller; 362-fourth linear motion system; 363-second bracket; 411-ninth mounting plate; 412-sixth suction nozzle; 2241-third mounting plate; 2242-insert plate; 2243-reinforcement plate; 2371-first linear cylinder; 2372-fifth mounting plate; 2373-first suction nozzle; 2381-second linear cylinder; 2382-sixth mounting plate; 2383-mounting bar; 2384-second suction nozzle; 3130-first through hole; 3231-first vertical rod; 3232-first horizontal rod; 3233- First hanging ear; 3311 - seventh mounting plate; 3312 - eighth mounting plate; 3313 - connecting bar; 3631 - first vertical bar; 3632 - first horizontal bar; 3633 - second hanging ear; 200 - back plate; 300 - material tray group; 310 - material tray; 400 - empty tray; X - first direction; Y - second direction. DETAILED DESCRIPTION

[0046] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0047] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0048] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0049] In addition, 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 the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0050] See also Figure 1 and Figure 2 , the feeder provided by the present invention is now described. The feeder is used to remove dust from the back panel 200, position it, and automatically feed it to the assembly machine of the backlight source, that is, to pre-treat and feed the back panel 200 before assembly. It can be understood that in other embodiments of the present invention, the feeder can also be used to pre-treat and feed components in other products, such as mobile phone cases and various cover plate structures, etc., which are not limited here.

[0051] In this embodiment, the subsequent "material" refers to the back panel 200 in the backlight source. Of course, in other embodiments of the present invention, the material may also be other structures of the mobile phone case.

[0052] The feeding machine includes a base frame 10, a feeding device 20, a dust removal device 30, a material transfer device 40, a positioning device 50 and a control device (not shown), wherein the feeding device 20, the dust removal device 30, the material transfer device 40, the positioning device 50 and the control device are arranged on the base frame 10 at intervals, respectively, and the control device is electrically connected to the feeding device 20, the dust removal device 30, the material transfer device 40 and the positioning device 50. The feeding device 20 is used to transport the back plate 200 to the dust removal device 30, the dust removal device 30 is used to clean the dust on the back plate 200, the material transfer device 40 is used to transfer the back plate 200 cleaned by the dust removal device 30 to a subsequent assembly process, the positioning device 50 is used to position and calibrate the back plate 200 on the material transfer device 40, and the control device is used to control the working sequence of the feeding device 20, the dust removal device 30, the material transfer device 40 and the positioning device 50.

[0053] During specific operation, the back panel 200 is first transported and transferred to the dust removal device 30 through the loading device 20, and then the dust on the back panel 200 is cleaned by the dust removal device 30, and finally the cleaned back panel 200 is transferred to the backlight source assembly machine through the material transfer device 40. At the same time, during the transfer process of the material transfer device 40, the position of the back panel 200 is positioned and calibrated by the positioning device 50.

[0054] The feeder provided by the present invention includes a feeder 20, a dust removal device 30, a material transfer device 40, a positioning device 50 and a control device, so that the back panel 200 can be automatically fed through the feeder 20, the dust removal device 30 and the material transfer device 40, thereby improving the assembly efficiency of the backlight source. The dust removal device 30 cleans the back panel 200 to ensure that the back panel 200 is clean before feeding, so that the backlight source is clean after assembly, and the use effect is good. In addition, the positioning device 50 is used to position and calibrate the back panel 200 before transferring it to the subsequent assembly process, so that the feeding position of the back panel 200 is accurate, and the assembly position of the back panel 200 is accurate, ensuring a high assembly yield rate of the backlight source and reducing costs.

[0055] For details, please refer to Figure 1 The base frame 10 is a frame structure formed by a plurality of cross beams 11 and a plurality of longitudinal beams 12. The base frame 10 is divided into two left and right frames, and the top, bottom, left and right sides and rear side of the right frame are provided with first mounting plates 13. The control device is installed in the mounting cavity formed by each first mounting plate 13.

[0056] See also Figure 1 and Figure 2 The feeder also includes a touch screen 70 and a display 80. The display 80 is used to display the working status of the feeder, and the touch screen 70 is used for the user to input control commands to control the operation of the entire feeder.

[0057] In this example, see Figure 1 The feeding device 20 includes a feeding line 21, a lifting mechanism 22 and a horizontal transfer mechanism 23, wherein the feeding line 21, the lifting mechanism 22 and the horizontal transfer mechanism 23 are respectively installed on the base frame 10. At least two material tray groups 300 are provided on the feeding line 21, and are used to sequentially convey each material tray group 300 to the lifting mechanism 22. The lifting mechanism 22 is used to vertically convey the material tray group 300 conveyed from the feeding line 21, and the horizontal transfer mechanism 23 is used to transfer the back plate 200 to the dust removal device 30. Among them, the material tray group 300 includes a plurality of vertically cross-stacked material trays 310. Specifically, the value of the material tray 310 in the material tray group 300 can be set according to actual needs. The material tray 310 includes an empty tray 400 and a back plate 200 arranged in the empty tray 400. In this embodiment, the empty tray 400 is specifically a blister tray. Specifically, each empty material tray 400 is provided with 10 limiting frames, which are arranged in two rows with 5 frames in each row. A back plate 200 can be placed in each limiting frame with the back side of the back plate 200 facing upward.

[0058] In this embodiment, three material tray groups 300 can be placed on the above-mentioned loading line 21 at the same time, and each material tray group 300 is arranged at intervals along the first direction X. It can be understood that in other embodiments of the present invention, the length of the loading line 21 can be set according to actual needs, so that two, four or more material tray groups 300 can be placed on the loading line 21 at the same time, which is not limited here.

[0059] See also Figure 1 In the present embodiment, the above-mentioned loading machine further includes a tray recovery device 60, and the tray recovery device 60 is used to recover the empty trays 400 after use.

[0060] When the above-mentioned feeding device 20 is working, the feeding line 21 conveys each material tray group 300 from left to right (i.e., the first direction X), and when the rightmost material tray group 300 reaches the right limit position, the feeding line 21 stops conveying, and then the lifting mechanism 22 vertically conveys the rightmost material tray group 300, and when the uppermost material tray 310 reaches the upper limit position, the lifting mechanism 22 stops conveying, and then the back plate 200 in the uppermost material tray 310 is moved to the dust removal device 30 through the horizontal transfer mechanism 23. When the uppermost material tray 310 becomes an empty tray 400, the empty tray 400 is recovered by the tray recovery device 60. Then the lifting mechanism 22 is driven to move upward for a distance, so that the uppermost material tray 310 reaches the upper limit position, and then the horizontal transfer mechanism 23 is driven to transfer the back plate 200, and so on, until the entire material tray group 300 on the right is emptied, and then the loading line 21 is driven to move to the right for a distance, and so on. In addition, in order to ensure the working accuracy of the loading line 21, the lifting mechanism 22 and the horizontal transfer mechanism 23, a plurality of position switches are provided on the loading machine, which are respectively used to control the movement stroke of the loading line 21, the lifting mechanism 22 and the horizontal transfer mechanism 23.

[0061] For details, please refer to Figure 3 The loading assembly line 21 includes a first motor 211, a first gear box 212, a first rotating shaft 213, a second rotating shaft 214, two driving wheels 215, two driven wheels 216, two conveyor belts 217, two guide rails 218 and a second mounting plate 219. The second mounting plate 219 is vertically arranged and extends along the first direction X. The second mounting plate 219 is installed on the base frame 10. The two guide rails 218 are arranged at intervals along the second direction Y and are respectively installed on the base frame 10. The two guide rails 218 extend along the first direction X, wherein the second direction Y and the first direction X are both horizontal directions and perpendicular to each other. The first gear box 212 is mounted on one of the guide rails 218, the input end of the first gear box 212 is connected to the first motor 211, the first shaft 213 extends along the second direction Y and is connected to the output end of the first gear box 212, two driving wheels 215 are respectively sleeved on both ends of the first shaft 213 and can rotate with the first shaft 213, the second shaft 214 extends along the second direction Y and is spaced apart from the first shaft 213 along the first direction X, two driven wheels 216 are respectively sleeved on both ends of the second shaft 214 and can rotate with the second shaft 214, and each conveyor belt 217 is respectively sleeved on a driving wheel 215 and a driven wheel 216. During specific operation, the first motor 211 is started to drive the first shaft 213 to rotate, thereby driving the two driving wheels 215 to rotate, and then driving the conveyor belt 217 to move along the first direction X, so that each material tray group 300 can move on the two conveyor belts 217 and slide on the two guide rails 218.

[0062] See also Figure 4 The lifting mechanism 22 includes a second motor 221, a second gearbox 222, a first linear motion system 223 and a material picker 224. The first linear motion system 223 is vertically mounted on the base frame 10. The first linear motion system 223 is a standard linear motion system and a ball screw type motion system. The second gearbox 222 is mounted at the bottom of the first linear motion system 223. The input end of the second gearbox 222 is connected to the second motor 221, and the output end of the second gearbox 222 is connected to the first linear motion system 223. The material picker 224 is slidably arranged on the first linear motion system 223 and performs lifting motion. In specific operation, the material tray group 300 on the two conveyor belts 217 is firstly taken out by the material picker 224, and then the second motor 221 is started, and the material picker 224 is driven to perform lifting motion by the first linear motion system 223, so as to move the material tray group 300 in the vertical direction.

[0063] Specifically, the material taking seat 224 includes a third mounting plate 2241 and three plug plates 2242, the third mounting plate 2241 is vertically arranged and slidably arranged on the first linear motion system 223, the three plug plates 2242 extend along the first direction X and are arranged at intervals along the second direction Y, and the three plug plates 2242 are staggered with the two conveyor belts 217, so that the material tray group 300 can be inserted from the two conveyor belts 217 and vertically transported through the first linear motion system 223. In this embodiment, the material tray group 300 is transferred by staggering the three plug plates 2242 with the two conveyor belts 217, and the structure is simple and the material taking is convenient.

[0064] Furthermore, in order to ensure the supporting strength of the three plug boards 2242, a reinforcing plate 2243 is provided under each plug board 2242. The reinforcing plate 2243 extends along the first direction X and is respectively connected to the plug board 2242 and the third mounting plate 2241, thereby enhancing the supporting strength of the plug board 2242.

[0065] In this example, see Figure 5The horizontal transfer mechanism 23 includes three support legs 231, a fourth mounting plate 232, a third motor 233, a third gear box 234, a second linear motion system 235, a transfer arm 236, a first hand grip 237 and a second hand grip 238. The support legs 231 are supported and arranged above the left frame at intervals along the first direction X, the fourth mounting plate 232 is horizontally arranged and respectively mounted on the support legs 231, the second linear motion system 235 is mounted on the fourth mounting plate 232, the second linear motion system 235 is a standard linear motion system, and is a ball screw type motion system, the third gear box 234 is mounted on the right end of the second linear motion system 235, the input end of the third gear box 234 is connected to the third motor 233, and the output end of the third gear box 234 is connected to the second linear motion system 235. The second linear motion system 235, the transfer arm 236 is slidably arranged on the second linear motion system 235, the transfer arm 236 is vertically arranged and located at the front side of the second linear motion system 235, the first hand grip 237 and the second hand grip 238 are arranged on the transfer arm 236 at intervals along the first direction X, the first hand grip 237 and the second hand grip 238 are synchronously moved horizontally under the drive of the transfer arm 326, the first hand grip 237 is used to move the back plate 200 to the dust removal device 30, and the second hand grip 238 is used to transport the empty tray 400 to the tray recovery device 60. In this embodiment, by installing the first hand grip 237 and the second hand grip 238 on the same transfer arm 236, and both are driven by the second linear motion system 235, the transfer of the back plate 200 and the empty tray 400 can be completed through the same horizontal transfer mechanism 23, thereby simplifying the entire loading machine, making the loading machine compact, occupying a small space, and low cost.

[0066] For details, please refer to Figure 5 The first hand grip 237 includes a first linear cylinder 2371, a fifth mounting plate 2372 and four first suction nozzles 2373. The first linear cylinder 2371 is vertically arranged on the side of the transfer arm 236 away from the second linear motion system 235 (i.e. Figure 5The fifth mounting plate 2372 is mounted on the output end of the first linear cylinder 2371, and the fifth mounting plate 2372 extends along the second direction Y. Four first suction nozzles 2373 are distributed on the fifth mounting plate 2372 at equal intervals along the second direction Y, and each first suction nozzle 2373 is arranged downward. During specific operation, the first linear cylinder 2371 drives the fifth mounting plate 2372 to move downward, and drives the four first suction nozzles 2373 to move downward. Every two first suction nozzles 2373 are used to suck one back plate 200. The four first suction nozzles 2373 can suck two back plates 200 at the same time, that is, two back plates 200 can be transferred at a time through a first hand grip 237, and then the four first suction nozzles 2373 are driven to move upward by the first linear cylinder 2371, and the four first suction nozzles 2373 are driven to move rightward to the dust removal device 30 by the second linear motion system 235, and then the four first suction nozzles 2373 are controlled to release the back plates 200, and finally the second linear motion system 235 is driven to move the four first suction nozzles 2373 to above the two leftmost back plates 200, and so on.

[0067] See also Figure 5 The second gripper 238 includes a second linear cylinder 2381, a sixth mounting plate 2382, four mounting strips 2383 and four second suction nozzles 2384. The second linear cylinder 2381 is vertically arranged on the side of the transfer arm 236 away from the second linear motion system 235 (i.e. Figure 5 The sixth mounting plate 2382 is mounted on the output end of the second linear cylinder 2381, and the four mounting strips 2383 extend outward from the four vertices of the sixth mounting plate 2382 along the diagonal direction of the sixth mounting plate 2382, respectively. The four second suction nozzles 2384 are respectively mounted on the four mounting strips 2383, and the four second suction nozzles 2384 are distributed in a rectangular shape, and each second suction nozzle 2384 is also set downward. During specific operation, the second linear cylinder 2381 drives the sixth mounting plate 2382 to move downward, and drives the four second suction nozzles 2384 to move downward. The four second suction nozzles 2384 are respectively adsorbed on different positions of the empty tray 400, thereby sucking an empty tray 400, and then the four suction nozzles are driven upward by the second linear cylinder 2381, and the four suction nozzles are driven to move to the left by the second linear motion system 235 to transport the empty tray 400 to the tray recovery device 60.

[0068] In addition, in order to protect the cables, oil pipes and air pipes related to the second linear motion system 235, each cylinder and each suction nozzle, a drag chain 239 is also provided on the rear side of the second linear motion system 235. The drag chain 239 is arranged on the fourth mounting plate 232, and one end of the drag chain 239 is installed on the slider of the second linear motion system 235 through a mounting block, so that it can move with the slider on the second linear motion system 235.

[0069] In this embodiment, the tray recovery device 60 is also arranged in an assembly line structure, and is transported by two spaced conveyor belts. The specific structure and working principle of the tray recovery device 60 are similar to those of the loading assembly line 21, and are not described repeatedly here. When the leftmost side of the tray recovery device 60 is filled with empty tray groups, the empty tray groups are manually moved away. It should be noted that the empty tray group is composed of a plurality of empty trays 400 stacked in the vertical direction.

[0070] See also Figure 6 The dust removal device 30 includes a first dust removal platform 31, a first roller mechanism 32 and a tape dust removal mechanism 33, wherein the first dust removal platform 31, the first roller mechanism 32 and the tape dust removal mechanism 33 are respectively installed on the base frame 10. The first dust removal platform 31 is used to place the back plate 200 that needs to be dusted. The first roller mechanism 32 includes a first roller 321, which can move along the second direction Y and rotate under the action of an external force. The first roller 321 can roll along the second direction Y on the back plate 200 to remove dust on the back plate 200. The tape dust removal mechanism 33 is arranged on the side of the first dust removal platform 31 along the second direction Y, and the tape dust removal mechanism 33 is used to remove dust on the first roller 321.

[0071] During the specific operation, the back plate 200 is first placed on the first dust removal platform 31, and then the first roller 321 is driven to move along the second direction Y. Since there is a certain friction between the first roller 321 and the back plate 200, the friction drives the first roller 321 to rotate, so that the first roller 321 rolls on the back plate 200, and then the dust on the back plate 200 is removed. Finally, the first roller 321 is moved to the tape dust removal mechanism 33, and the dust on the first roller 321 is removed by the tape dust removal mechanism 33. After the first roller 321 is clean, the first roller 321 is reset and prepared for cleaning the next back plate 200.

[0072] In this example, see Figure 6 The dust removal device 30 further includes a flipping mechanism 34, which is disposed on the base frame 10. The flipping mechanism 34 is used to receive the back plate 200 conveyed from the external conveying device and flip the back plate 200 by 180°, so that the back plate 200 is placed on the first dust removal platform 31 with the inner side facing upward. In this embodiment, the back plate 200 has an inner side and an outer side. In the process of conveying the back plate 200 by the external conveying mechanism, in order to prevent the inner side of the back plate 200 from being damaged during transportation, the outer side of the back plate 200 is facing upward when it is conveyed from the external conveying mechanism. The display effect of the backlight source is mainly affected by the dust on the inner side of the back plate 200, so it is necessary to flip the back plate 200 by 180° through the flipping mechanism 34, so that the inner side of the back plate 200 faces upward, which is convenient for the first roller 321 to remove dust.

[0073] See also Figure 6 The dust removal device 30 further includes a second dust removal platform 35 and a second roller mechanism 36. The first dust removal platform 31 can perform a flipping motion, and the first dust removal platform 31 can flip the back plate 200 thereon by 180°, so that the back plate 200 is placed on the second dust removal platform 35 with the outer side facing upward. The second roller mechanism 36 includes a second roller 361, and the second roller 361 can roll on the back plate 200 along the second direction Y to remove dust on the outer side of the back plate 200, and the second roller 361 can move to the tape dust removal mechanism 33 to remove dust on the second roller 361. In this embodiment, when the back plate 200 needs to be loaded with the outer side facing upward, the back plate 200 can be turned 180° by the first dust removal platform 31 and placed on the second dust removal platform 35 with the outer side facing upward. The second roller 361 can move along the second direction Y, so that the second roller 361 can roll on the outer side of the back plate 200 to remove the dust on the outer side of the back plate 200. Then, the second roller 361 is also moved to the tape dust removal mechanism 33, and then the dust on the second roller 361 is removed by the tape dust removal mechanism 33. In this embodiment, the second dust removal platform 35 and the second roller mechanism 36 are arranged, so that the dust removal device 30 can simultaneously meet the conditions of loading the back plate 200 with the inner side facing upward and the outer side facing upward. The dust removal device 30 has a wider range of applications, and the first roller 321 and the second roller 361 can be respectively dusted by the same tape dust removal mechanism 33, so that the number of tape dust removal mechanisms 33 can be saved, thereby reducing costs.

[0074] In this embodiment, the first roller 321 and the second roller 361 are both made of polyurethane material. Polyurethane has the advantages of good adhesion and elasticity. Therefore, when the first roller 321 and the second roller 361 are rolled on the back plate 200, the dust on the back plate 200 can be effectively removed to ensure that the back plate 200 is clean.

[0075] In this example, see Figure 7The flipping mechanism 34 includes a first driving member 341, which is installed on the base frame 10. The first driving member 341 is a motor. Both ends of the third rotating shaft 342 are rotatably mounted on the base frame 10. Specifically, both ends of the third rotating shaft 342 are respectively mounted on two first mounting seats 345 spaced apart along the second direction Y. The two first mounting seats 345 are fixed on the base frame 10. One end of the third rotating shaft 342 is connected to the first driving member 341 and can rotate under the drive of the first driving member 341. The third rotating shaft 342 is provided with two flaps 343, which are installed on the third rotating shaft 342 along the second direction Y. The two flaps 343 can be driven by the third rotating shaft 342 to flip onto the first dust removal platform 31. Each flap 343 is provided with six third suction nozzles 344, which are distributed on the flap 343 in a matrix manner. Each third suction nozzle 344 is arranged upward, and each third suction nozzle 344 is used to suck the inner side of the back plate 200. Please refer to Figure 2 In the initial state, the back plate 200 is located above the six third suction nozzles 344, and the outer side of the back plate 200 faces upward. When the first driving member 341 is driven to drive the third rotating shaft 342 to rotate, the two flaps 343 drive the two back plates 200 to flip 180°, and the two back plates 200 are arranged on the first dust removal platform 31 with the inner side facing upward, and the two back plates 200 are arranged at intervals along the second direction Y, and the length direction of the two back plates 200 is the same as the second direction Y. It can be understood that in other embodiments of the present invention, the number of the above-mentioned flaps 343 can be matched with the external conveying device, and the number of the third suction nozzles 344 can be adjusted according to the size of the back plate 200. It is not limited here.

[0076] See also Figure 8 and Fig. 9The first dust removal platform 31 includes a second driving member 311, which is mounted on the base frame 10. The second driving member 311 is a motor. The two ends of the fourth rotating shaft 312 are rotatably mounted on the base frame 10. Specifically, the two ends of the fourth rotating shaft 312 are respectively mounted on two second mounting seats 315 spaced apart along the second direction Y, and the two second mounting seats 315 are fixedly mounted on the base frame 10. One end of the fourth rotating shaft 312 is connected to the second driving member 311 and can rotate under the drive of the second driving member 311. A placement platform 313 is provided on the fourth rotating shaft 312. The placement platform 313 is in a flat plate shape and extends along the second direction Y. One end of the placement platform 313 is stacked on the fourth rotating shaft 312 and is locked by screws. The placement platform 313 can be turned 180° under the drive of the fourth rotating shaft 312, and the back plate 200 is placed on the second dust removal platform 35 with the outer side facing upward. In this embodiment, the placement platform 313 is configured as a suction cup, a plurality of first through holes 3130 are provided on the placement platform 313, and a fourth suction nozzle 314 is provided on the back of the placement platform 313, and the outer side of the back plate 200 is sucked onto the front side of the placement platform 313 through the fourth suction nozzle 314. In the initial state, the back plate 200 is sucked onto the placement platform 313 with the inner side facing upward, and when the second driving member 311 is driven to drive the fourth rotating shaft 312 to rotate, the placement platform 313 drives the two back plates 200 to flip 180°, and the two back plates 200 are placed on the second dust removal platform 35 with the outer side facing upward, and the two back plates 200 are spaced apart along the second direction Y. In this embodiment, since the placement platform 313 needs to be rolled by the first roller 321, it needs to be configured as a flat plate that can withstand pressure, and the entire placement platform 313 is configured as a suction cup, and a fourth suction nozzle 314 is provided on the back of the placement platform 313. In this way, not only can the purpose of adsorbing the back panel 200 be achieved, but it can also withstand the rolling of the first roller 321.

[0077] See also Figure 8 and Fig. 9 The structure of the second dust removal platform 35 is similar to that of the placement platform 313, and the second dust removal platform 35 is fixed on the base frame 10. The second dust removal platform 35 is in the shape of a plate and extends along the second direction Y. The second dust removal platform 35 is configured as a suction cup, and a plurality of second through holes 350 are provided on the second dust removal platform 35. A fifth suction nozzle 351 is provided on the back of the second placement platform 313, and the inner side of the back plate 200 is adsorbed on the front of the second dust removal platform 35 through the fifth suction nozzle 351.

[0078] See also Fig.10In this embodiment, the first roller mechanism 32 further includes a third linear motion system 322 and a first bracket 323. The first bracket 323 is slidably disposed on the third linear motion system 322, and both ends of the first roller 321 are rotatably disposed on the first bracket 323. The first bracket 323 is driven by the third linear motion system 322 to drive the first roller 321 to move on the placement platform 313. Since there is friction between the first roller 321 and the back plate 200, and both ends of the first roller 321 are rotatably disposed on the first bracket 323, the first roller 321 can roll on the back plate 200 under the action of friction, thereby removing dust on the inner side of the back plate 200.

[0079] Specifically, the third linear motion system 322 is installed at the bottom of the base frame 10 and located on the left side of the placement platform 313 through a mounting frame 324, and the third linear motion system 322 extends along the second direction Y. The first bracket 323 can slide along the second direction Y. The first bracket 323 is L-shaped. The first bracket 323 includes a first vertical rod 3231 and a first cross bar 3232. The first vertical rod 3231 is vertically arranged on the third linear motion system 322. The first cross bar 3232 extends rightward along the first direction XY from the top of the first vertical rod 3231, wherein the first direction XY and the second direction Y are perpendicular to each other, and the second direction Y and the first direction XY are both horizontal directions. The first roller 321 is arranged below the first cross bar 3232. The first cross bar 3232 extends downward with two first hanging ears 3233 extending along the first direction XY. The two ends of the first roller 321 are rotatably arranged on the two first hanging ears 3233 respectively.

[0080] See also Fig.11 In this embodiment, the second roller mechanism 36 further includes a fourth linear motion system 362 and a second bracket 363. The second bracket 363 is slidably disposed on the fourth linear motion system 362, and both ends of the second roller 361 are rotatably disposed on the second bracket 363. The second bracket 363 is driven by the fourth linear motion system 362 to drive the second roller 361 to move on the second dust removal platform 35. Since there is friction between the second roller 361 and the back plate 200, and both ends of the second roller 361 are rotatably disposed on the second bracket 363, the second roller 361 can roll on the back plate 200 under the action of the friction, thereby removing dust on the outer side of the back plate 200.

[0081] Specifically, the fourth linear motion system 362 is fixedly installed on the top of the base frame 10 and is located on the right side of the second dust removal platform 35. The fourth linear motion system 362 extends along the second direction Y. The second bracket 363 can slide along the second direction Y. The second bracket 363 is L-shaped. The second bracket 363 includes a second vertical rod 3631 and a second cross rod 3632. The second vertical rod 3631 is vertically arranged on the fourth linear motion system 362. The second cross rod 3632 extends to the left from the bottom end of the second vertical rod 3631 along the first direction XY. The second roller 361 is arranged below the second cross rod 3632. The second cross rod 3632 extends downward with two second hanging ears 3633 extending along the first direction XY. The two ends of the second roller 361 are respectively rotatably arranged on the two second hanging ears 3633.

[0082] In this example, see Figure 12 to Figure 14 The adhesive tape dust removal mechanism 33 is arranged at the front side of the placing platform 313 and the second dust removal platform 35, and the adhesive tape dust removal mechanism 33 includes a first mounting frame 331, a third driving member 332, a first roller 333, a second roller 334, two first tensioning wheels 335, two second tensioning wheels 336 and an adhesive tape 337. The first mounting frame 331 is mounted on the base frame 10, the third driving member 332 is a motor, and the third driving member 332 is mounted on the left side of the first mounting frame 331, the first roller 333, the second roller 334, the two first tensioning wheels 335 and the two second tensioning wheels 336 are all arranged on the right side of the first mounting frame 331, the first roller 333 is connected to the third driving member 332, and the second roller 334, the two first tensioning wheels 335 and the two second tensioning wheels 336 are all rotatably arranged on the first mounting frame 331. The first roller 333 and the second roller 334 are arranged at intervals along the second direction Y, and the two first tensioning wheels 335 are arranged at intervals along the second direction Y. The two first tensioning wheels 335 are located above the first roller 333 and the second roller 334, and the distance between the first roller 333 and the second roller 334 is greater than the distance between the two first tensioning wheels 335. The height of the two second tensioning wheels 336 is located between the first roller 333 and the first tensioning wheel 335, and in the front-to-back direction, the two second tensioning wheels 336 are located between the first tensioning wheel 335 and the second roller 334. The adhesive tape 337 is sequentially wound around the first roller 333, the two first tensioning wheels 335, the two second tensioning wheels 336 and the second roller 334. During operation, the first roller 321 and the second roller 361 can both roll on the adhesive tape 337 between the two first tensioning wheels 335. At the same time, through the arrangement of the two second tensioning wheels 336, the adhesive tape 337 can be in a tensioned state at all times, so that the adhesive tape 337 can remove dust on the first roller 321 and the second roller 361.

[0083] For details, please refer to Fig.14A support plate 338 is provided between the two first tensioning wheels 335, and the support plate 338 is horizontally mounted on the first mounting frame 331. The upper surface of the support plate 338 is flush with the tops of the two first tensioning wheels 335, and the distance between the tops of the two first tensioning wheels 335 is equal to the circumference of the first roller 321, and the circumference of the second roller 361 is equal to the circumference of the first roller 321. In this way, when the first roller 321 or the second roller 361 rolls a circle between the two first tensioning wheels 335, the dust just covers this section of the tape 337. After rolling for many times, the first roller 333 is driven to rotate by the third driving member 332, driving the tape 337 to move a section, and the moving distance is just equal to the circumference of the first roller 321. If the utilization rate of the tape 337 is maximized, the tape 337 is saved, and the cost is saved.

[0084] For details, please refer to Fig.13 The first mounting frame 331 includes a seventh mounting plate 3311, an eighth mounting plate 3312 and a connecting strip 3313. The seventh mounting plate 3311 and the eighth mounting plate 3312 are spaced apart from each other. The connecting strip 3313 is respectively connected to the sides of the seventh mounting plate 3311 and the eighth mounting plate 3312. The seventh mounting plate 3311 is installed on the base frame 10. The third driving member 332, the first roller 333 and the second roller 334 are all arranged on the seventh mounting plate 3311. The two first tensioning wheels 335 and the two second tensioning wheels 336 are all arranged on the eighth mounting plate 3312.

[0085] In this example, see Fig.15 and Fig.16 The material transfer device 40 includes a manipulator, specifically a SCARA (Selective Compliance Assembly Robot Arm), which is a robot arm used for assembly operations. It has three rotating joints and is most suitable for plane positioning. A third gripper 41 is provided at the end of the manipulator, and the third gripper 41 is used to grab the back plate 200 after the dust removal by the first roller mechanism 32 or the second roller mechanism 36. The positioning device 50 includes two cameras 51, specifically CCD cameras, and the full name of CCD in English is Charge coupled Device, and the full name in Chinese is Charge coupled device, which can be called CCD image sensor. CCD is a semiconductor device that can convert optical images into digital signals. In this application, the edge line of the back plate 200 is obtained by taking pictures with two CCD cameras to obtain the position information of the back plate 200, and the position information is sent to the control device. The control device sends the processed and adjusted position coordinate data to the manipulator, specifically to the controller of the manipulator. The manipulator adjusts the position of the back plate 200 according to the adjusted position coordinate data, so that the position of the back plate 200 entering the assembly machine is accurate and the assembly yield is high.

[0086] Specifically, the third gripper 41 includes a ninth mounting plate 411 installed at the end of the manipulator, and a plurality of sixth suction nozzles 412 are distributed in a matrix below the ninth mounting plate 411. Each sixth suction nozzle 412 is arranged downward and can suck the back plate 200.

[0087] Specifically, the manipulator is arranged at the rear right side above the base frame, and the end of the manipulator is roughly located above the first dust removal platform 31 and the second dust removal platform 35. The two CCD cameras are arranged side by side on the back of the base frame 10 and are located in the path of the end of the manipulator. When the manipulator sucks the back plate 200 and transfers it, when the back plate 200 passes through the two CCD cameras, the two CCD cameras respectively take pictures of the back plate 200 and obtain the position information of the back plate 200. When the manipulator learns that the position of the back plate 200 is offset, the manipulator puts the back plate 200 back on the first dust removal platform 31 or the second dust removal platform 32, adjusts the position of the end of the manipulator, and re-grabs the back plate 200.

[0088] The present invention also provides a feeding method, which is performed by the above-mentioned feeding machine, comprising the following steps:

[0089] S10: transferring the back plate 200 to the dust removal device 30 through the loading device 20;

[0090] Specifically, S10 includes the following steps:

[0091] S11: The material tray group 300 is transported from left to right through the loading line 21;

[0092] S12: The material tray group 300 is transported upward by the lifting mechanism 22;

[0093] S13: The back plate 200 is transferred to the dust removal device 30 through the horizontal transfer mechanism 23 .

[0094] S20: Cleaning dust on the back plate 200 by the dust removal device 30;

[0095] Specifically, S20 includes the following steps:

[0096] S21: The back plate 200 is placed on the first dust removal platform 31 with the inner side facing upwards through the flipping mechanism 34;

[0097] S22: Clean the inner side of the back plate 200 with dust by using the first roller mechanism 32, and move the first roller 321 to the tape dust removal mechanism 33 to remove dust from the first roller 321;

[0098] In addition, when the back plate 200 needs to be loaded on the outside, the following steps are also included:

[0099] S23: The back plate 200 is turned over by the first dust removal platform 31 and placed on the second dust removal platform with the outer side facing upwards:

[0100] S24: dust is removed from the outer side of the back plate 200 by the second roller mechanism 36 , and the second roller 361 is moved to the tape dust removal mechanism 33 for dust removal.

[0101] S30: The dust-removed back plate 200 is transferred to a subsequent assembly process by the material transfer device 40, and the position of the back plate 200 is accurately corrected by the positioning device 50 during the transfer process;

[0102] Specifically, step S30 includes the following steps:

[0103] S31: Grab the back plate 200 from the first dust removal platform 31 or the second dust removal platform 35 by the third hand gripper 41 in the material transfer device 40:

[0104] S32: The back plate 200 is transferred by the material transfer device 40. When the back plate 200 passes through the positioning device 50, the position information of the positioning device 50 or the back plate 200 is sent to the material transfer device;

[0105] S33: When the back plate 200 is positioned accurately, the material transfer device 40 loads the back plate 200;

[0106] S34: When the position of the back plate 200 is not accurate, the material transfer device 40 sends the back plate 200 back to the first dust removal platform 31 or the second dust removal platform 35, adjusts the position of the third hand gripper 41, re-grasps the back plate 200, and loads the back plate 200.

[0107] In addition, when a stack of empty tray groups is stacked on the tray recovery device 60, the empty tray groups are transferred through the tray recovery device 60.

[0108] The working sequence of steps S10, S20 and S30 is controlled by the control device.

[0109] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. Loading machine, characterized in that, It includes a feeding device, a dust removal device, a material transfer device, a positioning device and a control device, wherein the control device is electrically connected to the feeding device, the dust removal device, the material transfer device and the positioning device respectively, the feeding device is used to transport the material to the dust removal device, the dust removal device is used to clean the dust on the material, the material transfer device is used to transfer the material cleaned by the dust removal device to a subsequent assembly process, the positioning device is used to position and calibrate the material on the material transfer device, and the control device is used to control the working sequence of the feeding device, the dust removal device, the material transfer device and the positioning device; the feeding machine also includes a display, which is used to display the working status of the feeding machine; The feeding device comprises: A material loading line, wherein at least two material tray groups are provided on the material loading line and are used to sequentially convey the material tray groups; A lifting mechanism is used to vertically convey the material tray group conveyed by the feeding assembly line; A horizontal transfer mechanism, used for transferring the material to the dust removal device; Wherein, the material tray group includes a plurality of material trays vertically cross-stacked, and the material tray includes an empty tray and materials arranged in the empty tray; The dust removal device comprises: The first dust removal platform is used to place materials that need dust removal; A first roller mechanism, comprising a first roller, wherein the first roller can roll on the material along a second direction to remove dust on the material; An adhesive tape dust removal mechanism is provided on the side of the first dust removal platform along the second direction and is used to remove dust on the first roller; The second direction is perpendicular to the first direction.

2. The feeding machine according to claim 1, characterized in that: The loading line includes two conveyor belts arranged at intervals, and the lifting mechanism includes three plug plates arranged at intervals. The three plug plates are staggered with the two conveyor belts and can insert the material tray group from the two conveyor belts and transport them vertically.

3. The material loading machine according to claim 1, characterized in that: The loading machine also includes a tray recovery device for recovering the empty trays.

4. The loading machine according to claim 3, characterized in that: The horizontal transfer mechanism includes a horizontally movable transfer arm, and the transfer arm is provided with a first hand grip and a second hand grip which are spaced apart along a first direction. The first hand grip and the second hand grip move horizontally synchronously under the drive of the transfer arm. The first hand grip is used to move the material to the dust removal device, and the second hand grip is used to move the empty tray to the tray recovery device.

5. The material loading machine according to any one of claims 1 to 4, characterized in that: The dust removal device also includes a flipping mechanism, which is used to receive materials conveyed from an external conveying device and flip the materials 180 degrees, so that the materials are placed on the first dust removal platform with the inner side facing upward.

6. The material loading machine according to claim 5, characterized in that: The dust removal device also includes a second dust removal platform and a second roller mechanism. The first dust removal platform can flip the material thereon 180° so that the material is placed on the second dust removal platform with the outer side facing upward. The second roller mechanism includes a second roller. The second roller can roll on the material along the second direction to remove dust on the outer side of the material. The second roller can be moved to the tape dust removal mechanism to remove dust on the second roller.

7. The material loading machine according to any one of claims 1 to 4, characterized in that: The material transfer device includes a manipulator, a third gripper is provided at the end of the manipulator, the positioning device includes two cameras for obtaining the position of the material on the manipulator and sending the position information to the control device, the control device sends the adjusted position coordinate data to the manipulator, and the manipulator adjusts the material position according to the adjusted position coordinate data.

8. A feeding method, characterized in that: The material is loaded by the loading machine according to any one of claims 1 to 7, comprising the following steps: S10: transferring the material to the dust removal device through the feeding device; S20: Clean the dust on the material through the dust removal device; S30: transferring the dust-removed material to a subsequent assembly process through a material transfer device, and accurately correcting the position of the material through a positioning device during the transfer process; The working sequence of steps S10, S20 and S30 is controlled by the control device.

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