Wireless Headphone Charging Case Iron Sheet and Protective Film Assembly Machine

Abstract

The present invention discloses an assembling machine for an iron sheet and a protective film of a wireless earphone charging case, which includes an earphone charging case positioning device for positioning the earphone charging case, an iron sheet tray positioning device for positioning the iron sheet tray on which the iron sheets are placed, a protective film supply tray for providing a protective film tape, a protective film base paper recovery tray for recovering the protective film base paper, a protective film peeling mechanism for peeling the protective film on the protective film tape from the base paper, a release film peeling mechanism for tearing off the release film on the surface of the protective film attached to the earphone charging case, a first manipulator mechanism for completely tearing off the pre-peeled protective film on the protective film peeling mechanism and attaching it to the earphone charging case, a second manipulator mechanism for successively assembling the iron sheets on the iron sheet tray onto the surface of the protective film attached to the earphone charging case, and a control system for controlling the actions of the first and second manipulators. The present invention realizes the full-automatic assembly of the protective film and the iron sheet on the earphone charging case, saving labor.

Description

Technical Field

[0001] The present invention relates to the technical field of automation equipment, in particular to an assembly machine for iron sheets and protective films of a wireless earphone charging case. Background Art

[0002] During the production process of the earphone charging case, it is necessary to stick a protective film on the circuit board inside the earphone charging case, and then assemble the iron sheet product onto the protective film. The protective film is used to isolate the iron sheet product and the circuit board. Currently, the manual operation mode is adopted, that is, a piece of protective film is manually torn and stuck at a specified position inside the earphone charging case, and then the iron sheet product is manually taken out from the material tray and stuck on the upper side of the protective film. The efficiency of manually sticking the protective film and assembling the iron sheet is extremely low, and due to the different effects of each person in sticking the protective film and assembling the iron sheet, the position after the assembly of the protective film and the iron sheet product is inaccurate and the stability is difficult to guarantee. If the protective film and the iron sheet are misaligned, it is easy to cause a short circuit of the circuit board, and the protective film is also easily contaminated by human hands during the fitting process, which causes trouble for the subsequent use stability of the earphone charging case. Summary of the Invention

[0003] In order to overcome the above defects, the present invention provides an assembly machine for iron sheets and protective films of a wireless earphone charging case. The assembly machine for iron sheets and protective films of the wireless earphone charging case realizes the full-automatic sticking of the protective film and the assembly of the iron sheet for the earphone charging case, avoids manual operation, and improves the assembly efficiency, the accuracy of the assembly position and the stability of the protective film and the iron sheet.

[0004] The technical solution adopted by the present invention to solve its technical problems: A wireless earphone charging case iron sheet and protective film assembling machine, comprising a frame, an earphone charging case positioning device, an iron sheet tray positioning device, a protective film feeding tray, a protective film backing paper recycling tray, a protective film peeling mechanism, a release film tearing mechanism, a first manipulator mechanism, a second manipulator mechanism and a control system. The earphone charging case positioning device is arranged on the frame and can stop and position the earphone charging case. The protective film feeding tray and the protective film backing paper recycling tray are respectively rotatably installed on the frame. A protective film roll is wound on the protective film feeding tray. The protective film backing paper recycling tray can actively wind the backing paper of the protective film roll drawn from the protective film feeding tray and passing through the protective film peeling mechanism. The protective film peeling mechanism can separate the protective film product and the release film thereon from the backing paper together. The first manipulator mechanism can grab the protective film product separated by the protective film separating mechanism and stick it to the designated position of the earphone charging case on the earphone charging case positioning device. The release film tearing mechanism includes a tearing manipulator, and the tearing manipulator can tear off the release film on the surface of the protective film attached to the earphone charging case. The iron sheet tray positioning device can stop and position the iron sheet tray. The second manipulator mechanism picks up the iron sheets on the iron sheet tray one by one and assembles them to the position where the protective film is attached to the earphone charging case on the earphone charging case positioning device. The control system controls the actions of the protective film backing paper recycling tray, the tearing manipulator, the first manipulator mechanism and the second manipulator mechanism.

[0005] As a further improvement of the present invention, the iron sheet tray positioning device includes a positioning support plate that can be stopped and positioned on one side of the frame. At least two positioning pins are provided on the positioning support plate. The iron sheet tray can be supported on the upper side of the positioning support plate, and the positioning pins can be inserted into the positioning holes of the iron sheet tray.

[0006] As a further improvement of the present invention, there is also provided an automatic feeding mechanism for iron sheet trays, which includes a feeding conveyor mechanism, a feeding bin, a tray fork, a tray fork telescopic driving device, a feeding support, a feeding lifting driving device, a inserting support and an inserting lifting driving device. The cylindrical feeding bin is fixedly installed on the frame. The feeding bin can accommodate stacked iron sheet trays in a horizontally stopped manner. The feeding support is installed on the frame in a manner that it can move up and down. The feeding lifting driving device drives the feeding support to move up and down. The inserting support is installed on the feeding support in a manner that it can move up and down by the thickness of an iron sheet tray. The inserting lifting driving device drives the inserting support to reciprocate up and down. At least two tray forks are installed on the inserting support in a manner that they can move relative to each other horizontally. Each tray fork can horizontally slide into the lower side of the iron sheet tray at a specified height at the lower end of the feeding bin and lift the whole stack of iron sheet trays. The tray fork telescopic driving device drives the tray fork to reciprocate sliding to lift or lower the whole stack of iron sheet trays. The feeding conveyor mechanism can drive the positioning pallet to reciprocate between directly below the feeding bin and a specified position. The control system controls the start and stop actions of the tray fork telescopic driving device, the feeding lifting driving device, the inserting lifting driving device and the feeding conveyor mechanism.

[0007] As a further improvement of the present invention, there is also provided an automatic empty tray recycling device, which includes an empty tray pallet, a tray lifting driving device, a lifting slideway, a material lifting frame, a suction cup, a lifting driving device, an empty tray conveyor belt and an empty tray limit baffle. The lifting slideway is fixedly installed at a specified position on the frame. The empty tray pallet is installed on the lifting slideway in a manner that it can slide longitudinally. The empty tray pallet can hold the empty tray. The tray lifting driving device drives the empty tray pallet to intermittently descend or linearly ascend. The material lifting frame is installed on the lifting slideway in a manner that it can move up and down. The material lifting frame is located directly above the empty tray pallet. A number of suction cups are fixedly installed on the lower side of the material lifting frame. Each suction cup is connected to a negative pressure air path. The suction cup can negatively adsorb the edge of the iron sheet tray on the positioning pallet. The lifting driving device drives the material lifting frame to reciprocate up and down. The empty tray conveyor belt is installed on the frame. The starting end of the empty tray conveyor belt is located directly below the lifting slideway. There is a hollow part in the middle of the empty tray conveyor belt for avoiding the empty tray pallet. The lower side edge of the empty tray held by the empty tray pallet can just be held on the empty tray conveyor belt. The empty tray limit baffle is fixedly installed on both sides at the conveying end of the empty tray conveyor belt. The empty tray limit baffle can prevent the empty tray from continuing to be conveyed forward along the empty tray conveyor belt. The control system controls the actions of the tray lifting driving device, the suction cup, the lifting driving device and the empty tray conveyor belt.

[0008] As a further improvement of the present invention, the protective film peeling mechanism includes a peeling bracket, a peeling slide table and a protective film receiving platform. The peeling slide table is fixedly installed between the two side walls of the peeling bracket. One end of the peeling slide table forms a sharp corner structure. The protective film receiving platform is fixedly installed on the peeling bracket and is connected to the end of the peeling slide table with the sharp corner structure. The tape led out from the protective film feeding reel is peeled off from the release film and then bypasses the sharp corner structure of the peeling slide table. The base paper of the tape turns through the gap between the sharp corner structure of the peeling slide table and the protective film receiving platform and finally winds around the protective film base paper recovery reel. One end of the protective film product separated from the base paper is just supported on the surface of the protective film receiving platform.

[0009] As a further improvement of the present invention, there are a number of negative pressure air holes on the upper surface of the peeling slide table. The negative pressure air holes are communicated with the external negative pressure air path. On both sides of the peeling slide table in the width direction of the tape, L-shaped pressing blocks are respectively fixedly provided. The two side edges of the base paper of the tape are just inserted into the channels formed between the pressing blocks and the peeling slide table.

[0010] As a further improvement of the present invention, a pressure maintaining mechanism is also provided, which includes a pressure maintaining bracket, a pressure head, a pressure head driving device, a pressure maintaining device, a pressure sensing device and a pressure application timing device. The pressure maintaining bracket is fixedly installed on the frame. The pressure head is installed on the pressure maintaining bracket so as to be able to move up and down longitudinally. The pressure head driving device drives the pressure head to move up and down. The pressure head can press the surface of the iron sheet at a specified position of the headphone charging box. The pressure sensing device can sense the pressure between the iron sheet and the pressure head and transmit a signal to the control system. The pressure maintaining device is fixedly installed on the frame. The pressure maintaining device can provide a set downward pressure to the pressure head. The pressure application timing device can time the pressing time and is electrically connected and communicated with the control system. The control system controls the start and stop actions of the pressure head driving device and the pressure maintaining device.

[0011] As a further improvement of the present invention, the headphone charging case positioning device includes a headphone charging case positioning carrier, a carrier positioning mechanism, a feeding induction device, and a main flow line. The headphone charging case positioning carrier can fixedly position the headphone charging case to be assembled. The main flow line is arranged on the rack and can convey the headphone charging case positioning carrier forward in sequence through designated positions for assembling iron sheets and pasting protective films and a pressing position opposite to the pressing mechanism. The feeding induction device is fixedly installed on the side wall of the main flow line and can sense the headphone charging case positioning carrier about to reach the designated position and the pressing position and transmit a signal to the control system. The carrier positioning mechanism includes a carrier stop device, a fixed frame fixedly installed on the side wall of the main flow line, a lifting tray arranged below the main flow line, a lifting drive device fixedly installed on the rack, and a stop drive device. The carrier stop device is movably installed on the rack, and the movement of the carrier stop device can stop or disengage from the side wall on the front side in the conveying direction of the headphone charging case positioning carrier on the main flow line. There is a vertically penetrating hollow part on the main flow line opposite to the headphone charging case positioning carrier. The lifting tray can move up and down below the main flow line and can lift the headphone charging case positioning carrier at the designated position on the main flow line through the hollow part on the main flow line. The upper side wall of the headphone charging case positioning carrier abuts against the lower surface of the fixed frame. There is also a positioning slot on the lower surface of the fixed frame. There is a positioning protrusion on the upper side wall of the headphone charging case positioning carrier, and the positioning protrusion can be inserted into the positioning slot on the lower side surface of the fixed frame. The lifting drive device and the stop drive device respectively drive the lifting tray and the carrier stop device to reciprocate, and the control system controls the start and stop actions of the lifting drive device and the stop drive device.

[0012] As a further improvement of the present invention, a clamping jaw is installed on the moving end of the peeling manipulator of the release film peeling mechanism. The clamping jaw can clamp the side edge of the release film extending out of the edge of the protective film product. The release film peeling mechanism also has a dust suction module, which includes a dust suction bracket, a dust suction hood, a suction duct, and a negative pressure fan. The dust suction bracket is fixedly installed on the rack, the dust suction hood is installed on the dust suction bracket, the opening of the dust suction hood faces the headphone charging case product on the headphone charging case positioning device, both ends of the suction duct are connected to the negative pressure fan box and the dust suction hood respectively, the suction duct can allow the release film to pass through, and the control system controls the operation of the negative pressure fan.

[0013] As a further improvement of the present invention, there are also provided a headphone charging case position detection device, a protective film position detection device, a film pasting position detection device, an iron sheet grabbing position detection device and an iron sheet detection device. The headphone charging case position detection device includes a first slide rail, a first detection bracket, a first detection driving device, a first light source and a first detection camera. The first slide rail is fixedly installed on the side wall of the main flow line along the conveying direction of the main flow line. The first detection bracket is slidably installed on the first slide rail. The first detection driving device drives the first detection bracket to move along the extending direction of the first slide rail. The first light source and the first detection camera are fixedly installed on the first detection bracket. The first detection camera and the first light source can be located directly above the headphone charging case at a specified position. The first light source can irradiate the headphone charging case at the specified position, and the first detection camera can image the headphone charging case directly below it and transmit the signal to the control system;

[0014] The protective film position detection device includes a second slide rail, a second detection bracket, a second detection camera, a second light source and a second detection driving device. The second slide rail is fixedly installed on the machine frame along the peeling direction of the protective film. The second detection bracket is slidably installed on the second slide rail. The second detection camera and the second light source are fixedly installed on the second detection bracket. The second detection driving device drives the second detection bracket to move along the extending direction of the second slide rail. The second light source can irradiate the protective film peeled off from the base paper, and the second detection camera can image the protective film peeled off from the base paper in real time and transmit the signal to the control system;

[0015] The film pasting position detection device includes a third detection bracket, a third detection camera, a third light source and a prism. The third detection bracket is fixedly installed on the side wall of the main flow line at a specified position. The third detection camera, the third light source and the prism are respectively fixedly installed on the third detection bracket. The third light source can irradiate the side surface of the headphone charging case product at a specified position on the main flow line. One side of the prism is facing the side surface of the headphone charging case product at a specified position on the main flow line, and the other side of the prism is facing the third detection camera. The third detection camera can image the image refracted by the prism and transmit the signal to the control system;

[0016] The iron sheet grabbing position detection device includes a fourth detection bracket, a fourth detection camera and a fourth light source. The fourth detection bracket is fixedly installed on the machine frame. The fourth detection bracket is located directly above the iron sheet tray positioning device and the protective film peeling mechanism. The fourth light source can irradiate the surface of the iron sheet tray on the iron sheet tray positioning device and the surface of the protective film peeling mechanism. The fourth detection camera can image the iron sheet tray and the protective film directly below it and transmit the signal to the control system;

[0017] The iron sheet detection device includes a fifth light source and a fifth detection camera. The fifth light source can irradiate the arc magnet product that is grabbed by the second manipulator mechanism and sent above the fifth detection camera. The fifth detection camera can image the iron sheet product located directly above it and transmit a signal to the control system.

[0018] The control system can control the start and stop actions of the first detection drive device and the second detection drive device. The control system can also analyze and calculate the images transmitted by the first detection camera, the second detection camera, the third detection camera, the fourth detection camera, and the fifth detection camera to obtain the position data of the headphone charging case on the main production line, the position data of the iron sheet product on the iron sheet tray, the data on whether the iron sheet is qualified, the position and angle data of the iron sheet on the second manipulator, the pre-stripping position data of the protective film on the protective film peeling mechanism, the position data after the protective film is peeled off, and the fitting position data of the protective film attached to the headphone charging case.

[0019] The beneficial effects of the present invention are as follows: The present invention realizes the full-automatic feeding of the protective film and the iron sheet product, as well as the automatic and precise assembly of the protective film and the iron sheet product in the headphone charging case. The fitting position of the protective film and the iron sheet is precise. The headphone charging case realizes full-automatic conveying and positioning, avoiding manual feeding. The present invention realizes the precise assembly of the protective film and the iron sheet product in the headphone charging case, ensuring that the assembly positions of the protective film and the iron sheet product in each headphone charging case are accurate, avoiding the subsequent detachment due to improper assembly and the occurrence of short circuits caused by the misalignment of the protective film and the iron sheet, ensuring the stable later use of the headphone charging case. The present invention also avoids the manual assembly of the iron sheet product and the pasting of the protective film on the headphone charging case, avoiding the pollution of the protective film caused by manual pasting of the protective film, improving the assembly quality of the headphone charging case, greatly saving labor, and reducing the production cost of the enterprise. Description of the Drawings

[0020] Figure 1 is a perspective view of the present invention;

[0021] Figure 2 is a front view of the present invention;

[0022] Figure 3 is a top view of the present invention;

[0023] Figure 4 is a right view of the present invention;

[0024] Figure 5 is a perspective view of the protective film feeding mechanism of the present invention;

[0025] Figure 6 is a perspective view of the release film peeling mechanism of the present invention;

[0026] Figure 7 is a front view of the release film peeling mechanism of the present invention;

[0027] Figure 8 It is the positioning device for the earphone charging case of the present invention;

[0028] Figure 9 It is the perspective view of the reflux line of the present invention;

[0029] Figure 10 It is the perspective view of the iron sheet feeding mechanism of the present invention;

[0030] Figure 11 It is the perspective view of the feeding and conveying mechanism of the present invention;

[0031] Figure 12 It is the perspective view of the first part of the automatic empty tray recycling device of the present invention;

[0032] Figure 13 It is the perspective view of the first part of the automatic empty tray recycling device of the present invention;

[0033] Figure 14 It is the perspective view of the pressure maintaining mechanism of the present invention;

[0034] Figure 15 It is the perspective view of the pressure holding device of the present invention;

[0035] Figure 16 It is the perspective view of the vehicle stop device of the present invention;

[0036] Figure 17 It is the perspective view of the earphone charging case position detection device of the present invention;

[0037] Figure 18 It is the perspective view of the protective film position detection device of the present invention;

[0038] Figure 19 It is the perspective view of the film sticking position detection device of the present invention;

[0039] Figure 20 It is the perspective view of the iron sheet grasping position detection device of the present invention. Detailed implementation manner

[0040] Embodiment: A machine for assembling iron sheets and protective films of a wireless earphone charging case, comprising a frame 1, an earphone charging case positioning device, an iron sheet tray positioning device, a protective film supply tray 2, a protective film base paper recycling tray 3, a protective film peeling mechanism 4, a release film peeling mechanism 5, a first manipulator mechanism 6, a second manipulator mechanism 7 and a control system. The earphone charging case positioning device is arranged on the frame 1, and the earphone charging case positioning device can stop and position the earphone charging case. The protective film supply tray 2 and the protective film base paper recycling tray 3 are respectively rotatably installed on the frame 1. A protective film roll is wound on the protective film supply tray 2, and the protective film base paper recycling tray 3 can actively wind the base paper of the protective film roll led out from the protective film supply tray 2 and passing through the protective film peeling mechanism 4. The protective film peeling mechanism 4 can separate the protective film product and the release film thereon from the base paper together. The first manipulator mechanism 6 can grasp the protective film product separated by the protective film separation mechanism and stick it to the designated position of the earphone charging case on the earphone charging case positioning device. The release film peeling mechanism 5 includes a peeling manipulator 8, and the peeling manipulator 8 can peel off the release film on the surface of the protective film attached to the earphone charging case. The iron sheet tray positioning device can stop and position the iron sheet tray. The second manipulator mechanism 7 sucks and assembles the iron sheets on the iron sheet tray one by one to the position of the earphone charging case on the earphone charging case positioning device where the protective film is attached. The control system controls the actions of the protective film base paper recycling tray 3, the peeling manipulator 8, the first manipulator mechanism 6 and the second manipulator mechanism 7.

[0041] The earphone charging case is positioned on the earphone charging case positioning device. After the protective film tape is led out from the protective film supply tray 2, it enters the protective film peeling mechanism 4 after being guided by one or more guide rollers. The protective film peeling mechanism 4 peels off the protective film product and the release film on its surface from the base paper together, and the base paper is finally wound on the protective film base paper recycling tray 3. A suction nozzle is arranged on the first manipulator mechanism 6, and the suction nozzle sucks the protective film product peeled off from the base paper and the release film on its surface together and sticks it to the designated position of the earphone charging case. Then, the peeling manipulator 8 of the release film peeling mechanism 5 tears off the release film on the surface of the protective film. At the same time, the iron sheet tray for placing iron sheets is fixedly positioned on the iron sheet tray positioning device. A suction nozzle is also arranged on the second manipulator mechanism 7. The second manipulator mechanism 7 sucks and assembles the iron sheets on the iron sheet tray one by one to the position of the earphone charging case on the earphone charging case positioning device where the protective film is attached. The protective film realizes the isolation of the iron sheet and the circuit board. This equipment realizes the full-automatic assembly of the protective film and the iron sheet on the earphone charging case, with high assembly efficiency, accurate assembly position, labor saving and reduced production cost.

[0042] The iron sheet tray positioning device includes a positioning support plate 9 that can be stopped and positioned on one side of the frame 1. At least two positioning pins are provided on the positioning support plate 9. The iron sheet tray can be supported on the upper side of the positioning support plate 9, and the positioning pins can be inserted into the positioning holes of the iron sheet tray. After the iron sheet tray is placed on the positioning support plate 9, the positioning pins on the positioning support plate 9 are inserted into the positioning holes of the iron sheet tray to achieve the stop and positioning of the iron sheet tray.

[0043] An automatic feeding mechanism 64 for iron sheet trays is also provided, which includes a feeding conveyor mechanism 10, a feeding bin 11, a pallet fork 12, a pallet fork telescopic driving device 13, a feeding support 14, a feeding lifting driving device 15, an inserting support 16 and an inserting lifting driving device 17. The cylindrical feeding bin 11 is fixedly installed on the frame 1. The feeding bin 11 can accommodate stacked iron sheet trays in a horizontally stopped manner. The feeding support 14 is installed on the frame 1 in a manner that can move up and down. The feeding lifting driving device 15 drives the feeding support 14 to move up and down. The inserting support 16 is installed on the feeding support 14 in a manner that can move up and down by the thickness of an iron sheet tray. The inserting lifting driving device 17 drives the inserting support 16 to reciprocate up and down. At least two pallet forks 12 are installed on the inserting support 16 in a manner that can move relative to each other horizontally. Each pallet fork 12 can horizontally slide and insert under the iron sheet tray at a specified height at the lower end of the feeding bin 11 and lift the whole stack of iron sheet trays. The pallet fork telescopic driving device 13 drives the pallet forks 12 to reciprocate horizontally to lift or lower the whole stack of iron sheet trays. The feeding conveyor mechanism 10 can drive the positioning support plate 9 to reciprocate between directly below the feeding bin 11 and a specified position. The control system controls the start and stop actions of the pallet fork telescopic driving device 13, the feeding lifting driving device 15, the inserting lifting driving device 17 and the feeding conveyor mechanism 10. The whole stack of full iron sheet trays is placed in the feeding bin 11 and is held by the pallet forks 12. When the positioning support plate 9 reaches directly below the feeding bin 11, the feeding support 14 and the inserting support 16 both descend to the in-place position. At the same time, the pallet forks 12 horizontally slide and contract, placing the whole stack of full iron sheet trays on the positioning support plate 9. The lowermost iron sheet tray is just fixedly positioned on the positioning support plate 9. Then the inserting support 16 resets and rises by the height of the thickness of an iron sheet tray. The pallet forks 12 horizontally slide and extend, inserting under the second tray from the bottom of the whole stack of iron sheet trays. Finally, the feeding support 14 resets and rises to a certain height, and the pallet forks 12 lift the whole stack of trays except the lowermost one. At this time, there is a certain height difference between the whole stack of trays and the positioning bottom plate and the single tray on it. The positioning bottom plate can smoothly transport an iron sheet tray away from the feeding bin 11 and transport it to a specified position to wait for the first manipulator mechanism 6 to pick up the material. The feeding conveyor mechanism 10 can be a conveyor belt mechanism or can drive the positioning bottom plate to perform linear reciprocating motion on the linear guide through a motor-driven lead screw nut mechanism, or can perform linear reciprocating motion on the linear guide through a cylinder mechanism. Such are equivalent replacement structures that are easily conceivable by those skilled in the art according to this patent and belong to the protection scope of this patent. This structure realizes the single-tray automatic discharging of iron sheet trays, eliminates the need for manual continuous feeding, saves the feeding cost, and does not interfere with the first manipulator mechanism 6 during the feeding process of the iron sheet trays, ensuring safe and convenient feeding.

[0044] There is also an automatic empty tray recycling device 65, which includes an empty tray pallet 18, a pallet lifting drive device 19, a lifting slideway 20, a material lifting frame 21, a suction cup 22, a lifting drive device 23, an empty tray conveyor belt 24 and an empty tray limit baffle 25. The lifting slideway 20 is fixedly installed at a designated position on the machine frame 1. The empty tray pallet 18 is installed on the lifting slideway 20 so as to be able to slide longitudinally. The empty tray pallet 18 can hold an empty tray. The pallet lifting drive device 19 drives the empty tray pallet 18 to intermittently descend or linearly ascend. The material lifting frame 21 is installed on the lifting slideway 20 so as to be able to move up and down. The material lifting frame 21 is located directly above the empty tray pallet 18. A number of suction cups 22 are fixedly installed on the lower side of the material lifting frame 21. Each suction cup 22 is communicated with a negative pressure air path. The suction cup 22 can negatively pressure adsorb and position the edge of the iron sheet tray on the positioning plate 9. The lifting drive device 23 drives the material lifting frame 21 to reciprocate up and down. The empty tray conveyor belt 24 is installed on the machine frame 1. The starting end of the empty tray conveyor belt 24 is located directly below the lifting slideway 20. There is a hollow part for avoiding the empty tray pallet 18 in the middle of the empty sheet conveyor belt. The lower edge of the empty tray held on the empty tray pallet 18 can just be held on the empty tray conveyor belt 24. The empty tray limit baffle 25 is fixedly installed on both sides of the conveying end of the empty tray conveyor. The empty tray limit baffle 25 can prevent the empty tray from continuing to be conveyed forward along the empty tray conveyor belt 24. The control system controls the actions of the pallet lifting drive device 19, the suction cup 22, the lifting drive device 23 and the empty tray conveyor belt 24.The automatic feeding mechanism 64 of the iron sheet tray sends the positioning support plate 9 and the iron sheet tray thereon to directly above the empty tray pallet 18. After the second manipulator mechanism 7 takes away all the iron sheets on the iron sheet tray, the suction cup 22 on the material lifting frame 21 sucks the edge position of the empty tray. Then the material lifting frame 21 rises, causing the empty tray to separate from the positioning support plate 9. The positioning support plate 9 returns to its original position along with the feeding conveyor mechanism 10. The material lifting frame 21 descends to place the empty tray on the empty tray pallet 18. After receiving the empty tray, the empty tray pallet 18 descends by the height of one tray thickness and waits for the positioning support plate 9 to send the next iron sheet tray. After all the iron sheets on the iron sheet tray are taken away, the material lifting frame 21 lifts the empty tray again. When the positioning support plate 9 returns to its original position and leaves the opening, the material lifting frame 21 stacks the empty tray on the empty tray on the empty tray pallet 18 again. The empty tray pallet 18 descends by the height of one tray thickness again. This process repeats continuously to achieve the automatic recycling and stacking of the empty trays, forming a stack of empty trays. When the empty tray pallet 18 descends to the specified height, the empty tray enters the hollow part in the middle of the conveyor belt. The stack of empty trays on the empty tray pallet 18 is placed flat on the empty tray conveyor belt 24. As the empty tray conveyor belt 24 conveys towards the outside of the equipment, when it reaches the end of the empty tray conveyor belt 24, it is blocked by the empty tray limit baffle 25 and cannot continue to convey forward. At this time, the stack of empty trays can be taken away, and the empty tray pallet 18 rises and returns to its original position. Preferably, guiding baffles are arranged on both sides of the empty tray conveyor belt 24 so that the stack of empty trays can be conveyed forward in a stable and orderly stacked state to prevent scattering during the conveying process.

[0045] The protective film peeling mechanism 4 includes a peeling support 26, a peeling slide 27, and a protective film receiving platform 28. The peeling slide 27 is fixedly installed between the two side walls of the peeling support 26. One end of the peeling slide 27 forms a sharp corner structure. The protective film receiving platform 28 is fixedly installed on the peeling support 26 and is connected to the end of the peeling slide 27 with the sharp corner structure. The tape led out from the protective film supply reel 2 peels off the release film and bypasses the sharp corner structure of the peeling slide 27. The base paper of the tape turns through the gap between the sharp corner structure of the peeling slide 27 and the protective film receiving platform 28 and finally winds around the protective film base paper recovery reel 3. The end of the protective film product separated from the base paper is just supported on the surface of the protective film receiving platform 28.

[0046] The base paper and the protective film product attached to its surface are transported forward along the peeling slide 27. When it reaches the sharp-angle structure at one end of the peeling slide 27, the base paper turns along the sharp-angle structure. Since the protective film product and the release film on it have a certain hardness, they cannot turn with the base paper, and then one end of it is separated from the base paper to form a warped state, and is supported by the surface of the protective film receiving platform 28, so that the first manipulator mechanism 6 can grab and tear it off. This mechanism realizes the automatic peeling of the protective film. In addition, it can also be other peeling methods, such as sucking it off the base paper by the suction cup 22. These are equivalent replacement structures that can be easily thought of by technical personnel in this field based on this patent, and are within the scope of protection of this patent.

[0047] There are several negative pressure air holes on the upper surface of the stripping slide 27, and the negative pressure air holes are connected to the external negative pressure air path. L-shaped pressing blocks are fixed on both sides of the upper surface of the stripping slide 27 in the width direction of the material strip, and the edges of the base paper on both sides of the material strip are inserted into the channel formed between the pressing block and the stripping slide 27.

[0048] When the base paper slides forward on the peeling slide 27, it is sucked by the negative pressure of the negative pressure pores, and it is tightly attached to the surface of the peeling slide 27. At the same time, a guiding channel is formed between the base paper and the peeling slide 27 through the pressing block, thereby guiding the material strip. The above structure prevents the base paper from warping on the peeling slide 27, ensuring the accurate peeling position and stable peeling of the protective film, and avoiding ineffective peeling.

[0049] A pressure-maintaining mechanism 66 is also provided, including a pressure-maintaining bracket 29, a pressure head 30, a pressure head driving device 31, a pressure maintaining device 32, a pressure sensing device and a pressure timing device. The pressure-maintaining bracket 29 is fixedly mounted on the frame 1, and the pressure head 30 is installed on the pressure-maintaining bracket 29 so as to be able to move up and down in the longitudinal direction. The pressure head driving device 31 drives the pressure head 30 to move up and down. The pressure head 30 can press the surface of the iron sheet located at the specified position of the earphone charging box. The pressure sensing device can sense the pressure between the iron sheet and the pressure head 30 and transmit the signal to the control system. The pressure maintaining device 32 is fixedly mounted on the frame 1. The pressure maintaining device 32 can provide a set downward pressure to the pressure head 30. The pressure timing device can time the pressing time and communicate electrically with the control system. The control system controls the start and stop actions of the pressure head driving device 31 and the pressure maintaining device 32. After the protective film and the iron sheet are attached to the earphone charging box in sequence, the pressing head 30 presses the surface of the iron sheet and maintains a certain pressure for a set time to ensure that the iron sheet is stably attached to the earphone charging box to prevent it from falling off due to vibration or the like.

[0050] The headphone charging case positioning device includes a headphone charging case positioning carrier 33, a carrier positioning mechanism, a feeding induction device 34, and a main line 35. The headphone charging case positioning carrier 33 can fixedly position the headphone charging case to be assembled. The main line 35 is arranged on the rack 1 and can convey the headphone charging case positioning carrier 33 forward in sequence through the designated positions for assembling iron sheets and pasting protective films and the pressing position opposite to the pressure maintaining mechanism 66. The feeding induction device 34 is fixedly installed on the side wall of the main line 35 and can sense the headphone charging case positioning carrier 33 about to reach the designated position and the pressing position and transmit a signal to the control system. The carrier positioning mechanism includes a carrier stop device 36, a fixed frame 37 fixedly installed on the side wall of the main line 35, a lifting tray 38 arranged below the main line 35, a lifting driving device 39 fixedly installed on the rack 1, and a stop driving device 40. The carrier stop device 36 is movably installed on the rack 1, and the movement of the carrier stop device 36 can stop or disengage from the side wall on the front side in the conveying direction of the headphone charging case positioning carrier 33 on the main line 35. There is a vertically penetrating hollow part on the main line 35 opposite to the headphone charging case positioning carrier 33. The lifting tray 38 can move up and down below the main line 35 and can move upward through the hollow part on the main line 35 to lift the headphone charging case positioning carrier 33 at the designated position on the main line 35. The upper side wall of the headphone charging case positioning carrier 33 abuts against the lower surface of the fixed frame 37. There is also a positioning slot on the lower surface of the fixed frame 37. There is a positioning protrusion on the upper side wall of the headphone charging case positioning carrier 33, and the positioning protrusion can be inserted into the positioning slot on the lower side surface of the fixed frame 37. The lifting driving device 39 and the stop driving device 40 respectively drive the lifting tray 38 and the carrier stop device 36 to move reciprocally, and the control system controls the start and stop actions of the lifting driving device 39 and the stop driving device 40.The earphone charging case positioning vehicle 33 is used to fix and position the earphone charging case in advance. On the earphone charging case positioning vehicle 33, the earphone charging case and the earphone charging case positioning vehicle 33 can be accurately and stably positioned into an integrated structure through a positioning groove and a pressing mechanism with the same shape as the earphone charging case. By setting a main flow line 35 on the rack 1, automatic forward conveying of the earphone charging case vehicle is realized. When it is conveyed to the designated position, it is blocked by the vehicle stop device 36 and cannot continue to be conveyed forward. Then, the lifting tray 38 rises to lift the earphone charging case vehicle. Finally, the earphone charging case vehicle is clamped between the lifting tray 38 and the fixed frame 37. At the same time, the positioning protrusion on the earphone charging case vehicle is inserted into the positioning slot on the positioning frame to achieve horizontal positioning, thereby forming accurate and stable positioning of the earphone charging case vehicle. This mechanism realizes the full-automatic continuous feeding and positioning of the earphone charging case, avoiding manual feeding and positioning operations. A return line parallel and spaced in the reverse direction to the main flow line 35 can also be set. When the iron sheet box protective film is pasted on the earphone charging case and pressure is maintained, when it reaches the next work station, the worker removes the earphone charging case from the earphone charging case vehicle and places the empty earphone charging case vehicle on the return line 41 to be transported back, realizing the recycling of the earphone charging case vehicle without manual handling and turnover, saving labor and turnover boxes.

[0051] A gripper is installed on the moving end of the peeling manipulator 8 of the release film peeling mechanism 5. The gripper can clamp the side edge of the release film that extends beyond the edge of the protective film product. The release film peeling mechanism 5 is also provided with a dust suction module, which includes a dust suction bracket, a dust suction hood 42, a suction pipe, and a negative pressure fan. The dust suction bracket is fixedly installed on the frame 1, the dust suction hood 42 is installed on the dust suction bracket, the opening of the dust suction hood 42 faces the earphone charging box product on the earphone charging box positioning device, both ends of the suction pipe are communicated with the negative pressure fan box and the dust suction hood 42 respectively, and the suction pipe can allow the release film to pass through. The control system controls the operation of the negative pressure fan. After the protective film is attached to the earphone charging box, the gripper on the peeling manipulator 8 clamps the upper edge of the release film that extends a set distance beyond the edge of the protective film. As the peeling manipulator 8 moves, the release film is peeled off from the surface of the protective film, and then the gripper releases the release film. The release film is quickly sucked away under the negative pressure in the dust suction hood 42. Among them, the peeling manipulator 8 includes a horizontal slider 43 and a vertical slider 68 that move horizontally and vertically, a gripper fixing seat 69, a horizontal slider driving device, a vertical slider driving device, and a rotation driving device. The horizontal slider is driven by the horizontal slider driving device to move horizontally, and the vertical slider is driven by the vertical slider driving device to slide longitudinally so that the gripper is aligned with and clamps the edge of the release film. Then the rotation driving device drives the gripper fixing seat to rotate a certain angle around the horizontal axis, first tears the release film at an angle, and then tears the release film horizontally and longitudinally to achieve rapid peeling of the release film. The peeling manipulator 8 can also be a multi-axis articulated manipulator, and such structures are all equivalent replacement structures that are easily conceivable by those skilled in the art according to this patent and belong to the protection scope of this patent.

[0052] There are also provided an earphone charging box position detection device 44, a protective film position detection device 45, a film sticking position detection device 46, an iron sheet grabbing position detection device 47, and an iron sheet detection device 67. The earphone charging box position detection device 44 includes a first slide rail 48, a first detection bracket 49, a first detection driving device 50, a first light source 51, and a first detection camera 52. The first slide rail 48 is fixedly installed on the side wall of the main flow line 35 along the conveying direction of the main flow line 35. The first detection bracket 49 is slidably installed on the first slide rail 48. The first detection driving device 50 drives the first detection bracket 49 to move along the extension direction of the first slide rail 48. The first light source 51 and the first detection camera 52 are fixedly installed on the first detection bracket 49. The first detection camera 52 and the first light source 51 can be located directly above the earphone charging box at a specified position. The first light source 51 can irradiate the earphone charging box at the specified position, and the first detection camera 52 can image the earphone charging box directly below it and transmit the signal to the control system;

[0053] The protective film position detection device 45 includes a second slide rail 53, a second detection bracket 54, a second detection camera 55, a second light source 56, and a second detection driving device 57. The second slide rail 53 is fixedly installed on the frame 1 along the direction of protective film peeling. The second detection bracket 54 is slidably installed on the second slide rail 53. The second detection camera 55 and the second light source 56 are fixedly installed on the second detection bracket 54. The second detection driving device 57 drives the second detection bracket 54 to move along the extending direction of the second slide rail 53. The second light source 56 can irradiate the protective film peeled off from the backing paper. The second detection camera 55 can perform real-time imaging on the protective film peeled off from the backing paper and transmit the signal to the control system;

[0054] The film sticking position detection device 46 includes a third detection bracket 58, a third detection camera 59, a third light source, and a prism 60. The third detection bracket 58 is fixedly installed on the side wall of the main flow line 35 at a specified position. The third detection camera 59, the third light source, and the prism 60 are respectively fixedly installed on the third detection bracket 58. The third light source can irradiate the side surface of the earphone charging box product at a specified position on the main flow line 35. One side of the prism 60 faces the side surface of the earphone charging box product at a specified position on the main flow line 35, and the other side of the prism 60 faces the third detection camera 59. The third detection camera 59 can image the image refracted by the prism 60 and transmit the signal to the control system;

[0055] The iron sheet grasping position detection device 47 includes a fourth detection bracket 61, a fourth detection camera 62, and a fourth light source 63. The fourth detection bracket 61 is fixedly installed on the frame 1. The fourth detection bracket 61 is located directly above the iron sheet tray positioning device and the protective film peeling mechanism 4. The fourth light source 63 can irradiate the surface of the iron sheet tray on the iron sheet tray positioning device and the surface of the protective film peeling mechanism 4. The fourth detection camera 62 can image the iron sheet tray and the protective film located directly below it and transmit the signal to the control system;

[0056] The iron sheet detection device 67 includes a fifth light source and a fifth detection camera. The fifth light source can irradiate the arc magnet product grasped by the second manipulator mechanism 7 and sent directly above the fifth detection camera. The fifth detection camera can image the iron sheet product located directly above it and transmit the signal to the control system.

[0057] The control system can control the start and stop actions of the first detection drive device 50 and the second detection drive device 57. The control system can also analyze and calculate the images transmitted by the first detection camera 52, the second detection camera 55, the third detection camera 59, the fourth detection camera 62, and the fifth detection camera to obtain the position data of the headphone charging case on the main line 35, the position data of the iron sheet product on the iron sheet tray, the data on whether the iron sheet is qualified, the position and angle data of the iron sheet on the second robot arm, the pre-stripping position data of the protective film on the protective film stripping mechanism 4, the position data after the protective film stripping is completed, and the fitting position data of the protective film pasted on the headphone charging case. The control system judges the positions to be assembled of the headphone charging case on the main line 35, the grasping positions of the iron sheets on the iron sheet tray, the pre-stripping and grasping positions of the protective film on the protective film stripping mechanism 4, the position of the protective film after tearing off the base paper, and the position of the protective film ready to be pasted with the iron sheet into the headphone charging case according to the images of the first, second, third, and fourth detection cameras, so as to control the movement of the first robot arm mechanism 6 and the second robot arm mechanism 7 in the three-dimensional space and the rotation of the suction nozzles on the second and third robot arms around the vertical rotation axis to adjust the angle of the iron sheet, realizing the precise fitting of the protective film and the precise assembly of the iron sheet, and avoiding assembly misalignment.

Claims

1. A ferrous sheet and protective film assembling machine for a wireless earphone charging case, characterized in that: It includes a frame (1), a positioning device for the headphone charging case, a positioning device for the iron sheet tray, a protective film supply tray (2), a protective film backing paper recycling tray (3), a protective film peeling mechanism (4), a release film peeling mechanism (5), a first manipulator mechanism (6), a second manipulator mechanism (7) and a control system. The positioning device for the headphone charging case is arranged on the frame. The positioning device for the headphone charging case can stop and position the headphone charging case. The protective film supply tray and the protective film backing paper recycling tray are respectively rotatably installed on the frame. A protective film roll is wound on the protective film supply tray. The protective film backing paper recycling tray can actively wind the backing paper of the protective film roll led out from the protective film supply tray and passing through the protective film peeling mechanism. The protective film peeling mechanism can separate the protective film product and the release film on it from the backing paper together. The first manipulator mechanism can grasp the protective film product separated by the protective film separation mechanism and stick it to the designated position of the headphone charging case on the headphone charging case positioning device. The release film peeling mechanism includes a peeling manipulator (8). The peeling manipulator can peel off the release film on the surface of the protective film attached to the headphone charging case. The iron sheet tray positioning device can stop and position the iron sheet tray. The second manipulator mechanism sucks the iron sheets on the iron sheet tray one by one and assembles them to the position of the headphone charging case with the protective film on the headphone charging case positioning device. The control system controls the actions of the protective film backing paper recycling tray, the peeling manipulator, the first manipulator mechanism and the second manipulator mechanism. The protective film peeling mechanism includes a peeling bracket (26), a peeling slide table (27) and a protective film receiving platform (28). The peeling slide table is fixedly installed between the two side walls of the peeling bracket. One end of the peeling slide table forms a sharp corner structure. The protective film receiving platform is fixedly installed on the peeling bracket. The protective film receiving platform is connected to the end with the sharp corner structure of the peeling slide table. The tape led out from the protective film supply tray peels off the release film and then bypasses the sharp corner structure of the peeling slide table. The backing paper of the tape turns through the gap between the sharp corner structure of the peeling slide table and the protective film receiving platform and finally winds on the protective film backing paper recycling tray. The separated end of the protective film product and the backing paper is just supported on the surface of the protective film receiving platform.

2. The iron sheet and protective film assembly machine for wireless earphone charging case according to claim 1, wherein: The iron sheet tray positioning device includes a positioning support plate (9) that can be stopped and positioned on one side of the frame. At least two positioning pins are provided on the positioning support plate. The iron sheet tray can be supported on the upper side of the positioning support plate. The positioning pins can be inserted into the positioning holes of the iron sheet tray.

3. The iron sheet and protective film assembling machine for wireless earphone charging case according to claim 2, wherein: An automatic feeding mechanism for iron sheet trays (64) is also provided, which includes a feeding conveying mechanism (10), a feeding bin (11), a tray fork (12), a tray fork telescopic driving device (13), a feeding support (14), a feeding lifting driving device (15), an inserting support (16) and an inserting lifting driving device (17). The cylindrical feeding bin is fixedly installed on the frame. The feeding bin can accommodate stacked iron sheet trays in a horizontally stopped manner. The feeding support is installed on the frame so as to be capable of lifting movement. The feeding lifting driving device drives the feeding support to lift. The inserting support is installed on the feeding support so as to be capable of lifting movement by the thickness of one iron sheet tray. The inserting lifting driving device drives the inserting support to reciprocate up and down. At least two tray forks are installed on the inserting support so as to be capable of relative movement in the horizontal direction. Each tray fork can horizontally slide and insert under the lower side of the iron sheet tray at a specified height at the lower end of the feeding bin and lift the whole stack of iron sheet trays. The tray fork telescopic driving device drives the tray fork to reciprocate and slide to lift or lower the whole stack of iron sheet trays. The feeding conveying mechanism can drive the positioning pallet to reciprocate between directly below the feeding bin and a specified position. The control system controls the start and stop actions of the tray fork telescopic driving device, the feeding lifting driving device, the inserting lifting driving device and the feeding conveying mechanism.

4. The iron sheet and protective film assembling machine for wireless earphone charging case according to claim 3, wherein: An automatic empty tray recycling device (65) is also provided, which includes an empty tray pallet (18), a tray lifting driving device (19), a lifting slideway (20), a material lifting frame (21), a suction cup (22), a lifting driving device (23), an empty tray conveyor belt (24) and an empty tray limit baffle (25). The lifting slideway is fixedly installed at a specified position on the frame. The empty tray pallet is installed on the lifting slideway so as to be capable of sliding longitudinally. The empty tray pallet can hold the empty tray. The tray lifting driving device drives the empty tray pallet to intermittently descend or linearly ascend. The material lifting frame is installed on the lifting slideway so as to be capable of lifting movement. The material lifting frame is located directly above the empty tray pallet. A number of suction cups are fixedly installed on the lower side of the material lifting frame. Each suction cup is communicated with a negative pressure air path. The suction cup can negatively adsorb the edge of the iron sheet tray on the positioning pallet. The lifting driving device drives the material lifting frame to reciprocate up and down. The empty tray conveyor belt is installed on the frame. The starting end of the empty tray conveyor belt is located directly below the lifting slideway. A hollow part for avoiding the empty tray pallet is provided in the middle of the empty tray conveyor belt. The lower side edge of the empty tray held on the empty tray pallet can just be held on the empty tray conveyor belt. The empty tray limit baffle is fixedly installed on both sides at the conveying end of the empty tray conveyor belt. The empty tray limit baffle can prevent the empty tray from continuing to be conveyed forward along the empty tray conveyor belt. The control system controls the actions of the tray lifting driving device, the suction cup, the lifting driving device and the empty tray conveyor belt.

5. The iron sheet and protective film assembly machine for wireless earphone charging case according to claim 1, characterized in that: There are a number of negative pressure air holes on the upper side surface of the peeling slide table. The negative pressure air holes are communicated with an external negative pressure air path. L-shaped pressing blocks are respectively fixedly provided on both sides of the upper side surface of the peeling slide table in the width direction of the material tape. The two side edges of the base paper of the material tape are just inserted into the channels formed between the pressing blocks and the peeling slide table.

6. The iron sheet and protective film assembling machine for a wireless earphone charging case according to claim 1, wherein: A pressure-holding mechanism (66) is also provided, which includes a pressure-holding bracket (29), a pressure head (30), a pressure head driving device (31), a pressure-holding device (32), a pressure sensing device and a pressure application timing device. The pressure-holding bracket is fixedly installed on the frame. The pressure head is installed on the pressure-holding bracket so as to be able to move up and down longitudinally. The pressure head driving device drives the pressure head to move up and down. The pressure head can press the surface of the iron sheet located at the designated position of the earphone charging case. The pressure sensing device can sense the pressure between the iron sheet and the pressure head and transmit a signal to the control system. The pressure-holding device is fixedly installed on the frame. The pressure-holding device can provide a set downward pressure to the pressure head. The pressure application timing device can time the pressing time and is electrically connected and communicated with the control system. The control system controls the start and stop actions of the pressure head driving device and the pressure-holding device.

7. The iron sheet and protective film assembling machine for wireless earphone charging case according to claim 6, wherein: The earphone charging case positioning device includes an earphone charging case positioning carrier (33), a carrier positioning mechanism, a feeding sensing device (34) and a main flow line (35). The earphone charging case positioning carrier can fixedly position the earphone charging case to be assembled. The main flow line is arranged on the frame. The main flow line can convey the earphone charging case positioning carrier forward in sequence through the designated positions for assembling the iron sheet and pasting the protective film and the pressure-holding position opposite to the pressure-holding mechanism. The feeding sensing device is fixedly installed on the side wall of the main flow line. The feeding sensing device can sense the earphone charging case positioning carrier about to reach the designated position and the pressure-holding position and transmit a signal to the control system. The carrier positioning mechanism includes a carrier stop device (36), a fixed frame (37) fixedly installed on the side wall of the main flow line, a lifting tray (38) arranged below the main flow line and a lifting driving device (39) and a stop driving device (40) fixedly installed on the frame. The carrier stop device is movably installed on the frame. The movement of the carrier stop device can stop or disengage from the side wall on the front side in the conveying direction of the earphone charging case positioning carrier on the main flow line. There is a vertically penetrating hollow part on the main flow line opposite to the earphone charging case positioning carrier. The lifting tray can move up and down and is arranged directly below the main flow line. The lifting tray can move upward through the hollow part on the main flow line to lift the earphone charging case positioning carrier at the designated position on the main flow line. The upper side wall of the earphone charging case positioning carrier abuts against the lower side surface of the fixed frame. There is also a positioning slot on the lower side surface of the fixed frame. There is a positioning protrusion on the upper side wall of the earphone charging case positioning carrier. The positioning protrusion can be inserted into the positioning slot on the lower side surface of the fixed frame. The lifting driving device and the stop driving device respectively drive the lifting tray and the carrier stop device to move reciprocally. The control system controls the start and stop actions of the lifting driving device and the stop driving device.

8. The iron sheet and protective film assembly machine for wireless earphone charging case according to claim 1 or 7, characterized in that: A gripper is installed on the moving end of the peeling manipulator of the release film peeling mechanism. The gripper can clamp the side edge of the release film that extends out of the edge of the protective film product. The release film peeling mechanism is also provided with a dust suction module, which includes a dust suction bracket, a dust suction hood (42), a suction pipe, and a negative pressure fan. The dust suction bracket is fixedly installed on the machine frame, the dust suction hood is installed on the dust suction bracket, the opening of the dust suction hood faces the earphone charging box product on the earphone charging box positioning device, both ends of the suction pipe are respectively communicated with the negative pressure fan and the dust suction hood, the suction pipe can allow the release film to pass through, and the control system controls the operation of the negative pressure fan.

9. The iron sheet and protective film assembly machine for wireless earphone charging case according to claim 8, wherein: There are also provided an earphone charging box position detection device (44), a protective film position detection device (45), a film sticking position detection device (46), an iron sheet grabbing position detection device (47), and an iron sheet detection device (67). The earphone charging box position detection device includes a first slide rail (48), a first detection bracket (49), a first detection driving device (50), a first light source (51), and a first detection camera (52). The first slide rail is fixedly installed on the side wall of the main flow line along the extending direction of the main flow line conveying direction. The first detection bracket is slidably installed on the first slide rail. The first detection driving device drives the first detection bracket to move along the extending direction of the first slide rail. The first light source and the first detection camera are fixedly installed on the first detection bracket. The first detection camera and the first light source can be located directly above the earphone charging box at a specified position. The first light source can irradiate the earphone charging box at the specified position, and the first detection camera can image the earphone charging box located directly below it and transmit the signal to the control system. The protective film position detection device includes a second slide rail (53), a second detection bracket (54), a second detection camera (55), a second light source (56), and a second detection driving device (57). The second slide rail is fixedly installed on the machine frame along the extending direction of the protective film peeling direction. The second detection bracket is slidably installed on the second slide rail. The second detection camera and the second light source are fixedly installed on the second detection bracket. The second detection driving device drives the second detection bracket to move along the extending direction of the second slide rail. The second light source can irradiate the protective film peeled from the base paper, and the second detection camera can perform real-time imaging on the protective film peeled from the base paper and transmit the signal to the control system. The film sticking position detection device includes a third detection bracket (58), a third detection camera (59), a third light source, and a prism (60). The third detection bracket is fixedly installed on the side wall of the main flow line at a specified position. The third detection camera, the third light source, and the prism are respectively fixedly installed on the third detection bracket. The third light source can irradiate the side surface of the earphone charging box product at a specified position on the main flow line. One side of the prism faces the side surface of the earphone charging box product at a specified position on the main flow line, and the other side of the prism faces the third detection camera. The third detection camera can image the image refracted by the prism and transmit the signal to the control system. The iron sheet grasping position detection device includes a fourth detection bracket (61), a fourth detection camera (62) and a fourth light source (63). The fourth detection bracket is fixedly installed on the frame. The fourth detection bracket is located directly above the iron sheet tray positioning device and the protective film peeling mechanism. The fourth light source can irradiate the surface of the iron sheet tray on the iron sheet tray positioning device and the surface of the protective film peeling mechanism. The fourth detection camera can image the iron sheet tray and the protective film directly below it and transmit signals to the control system; The iron sheet detection device includes a fifth light source and a fifth detection camera. The fifth light source can irradiate the arc magnet product that is grasped by the second manipulator mechanism and sent directly above the fifth detection camera. The fifth detection camera can image the iron sheet product directly above it and transmit signals to the control system. The control system can control the start and stop actions of the first detection drive device and the second detection drive device. The control system can also analyze and calculate the images transmitted by the first detection camera, the second detection camera, the third detection camera, the fourth detection camera and the fifth detection camera to obtain the position data of the headphone charging case on the main line, the position data of the iron sheet product on the iron sheet tray, the data on whether the iron sheet is qualified, the position and angle data of the iron sheet on the second manipulator, the pre-peeling position data of the protective film on the protective film peeling mechanism, the position data after the protective film peeling is completed, and the fitting position data of the applied protective film on the headphone charging case.

Images