[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
[0021] See Figure 1-4 , A self-recoating powder coating equipment for a powder bin for a laser printer, comprising a housing 1, a placement groove 2 is opened inside the housing 1, and an airbag 18 is fixedly connected to the top wall of the placement groove 2. The elasticity of the airbag 18 is less than that of a cushion spring The elastic force of 3, the function of the airbag 18 is to increase the pressure difference force, and then push the elastic plate 4 to exert a certain force on the surface of the carbon powder, and the hollow channel 20 can facilitate the addition of materials; the inside of the placement groove 2 is movably connected with a cushioning spring 3 An elastic plate 4 is movably connected to the bottom of the cushioning spring 3; a hollow channel 20 is opened inside the elastic plate 4, and the hollow channel 20 is made of plastic.
[0022] The inside of the housing 1 and on both sides of the placement groove 2 are fixedly connected with a feeding rack 5, the surface of the feeding rack 5 is movably connected with a telescopic rod 16, and both sides of the telescopic rod 16 are movably connected with a supporting rod 17, and the supporting rod 17 The function is to support the function of the telescopic rod 16 to prevent the telescopic rod 16 from deviating; the inside of the feeding frame 5 is fixedly connected with a detention box 19, which is a hollow hollow design, and the role of the detention box 19 is to provide storage space for flowing toner ; With the outflow of carbon powder, the gas in the constant pressure tank 6 will also flow out with the carbon powder, so the pressure in the constant pressure tank 6 is gradually smaller than the pressure in the shell 1, so according to the pressure difference, the pressure difference , The expression is △P=P1-P2, which refers to the pressure difference between two points in the system, that is, a strong gas flow or liquid will flow to a place with a low pressure, and the carbon powder and gas in the shell 1 have a constant pressure The force of the groove 6, which acts on the surface of the movable plate 7, will push the movable plate 7 to rotate under the restriction of the rotating shaft 9, and the movable plate 7 will lose its limiting effect on the carbon powder, and when the housing 1 produces When the pressure is different, a certain force will act on the surface of the feeding frame 5, so the compressed telescopic rod 16 stretches to help the toner move, so the toner in the housing 1 falls into the constant pressure groove 6, thus achieving a The effect of automatic powder addition by powder pressure to avoid paper waste.
[0023] The inside of the housing 1 and located at the bottom of the placement groove 2 is fixedly connected with a constant pressure groove 6, and the inside of the constant pressure groove 6 is movably connected with a movable plate 7. When the carbon powder is added and the pressure difference in the constant pressure groove 6 disappears, The force received by the movable plate 7 becomes smaller, so the inversion of the limit tube 11 drives the movable plate 7 to return to its original position, and the inversion of the limit tube 11 will drive the shaft 9 to rotate. The protective plate 15 and the discharge plate 14 do the same Vibration, so as to achieve the effect of dredging the powder outlet to avoid clogging; the inside of the housing 1 and located on the left and right sides of the movable plate 7 are fixedly connected to the support frame 8, and the support frame 8 is opened on the side close to the housing 1. The size of the air inlet 13 and the air inlet 13 is one-half of the width of the support frame 8, and the function of the air inlet 13 is to maintain the stability of the air flow in the support frame 8.
[0024] The inside of the support frame 8 is movably connected with a rotating shaft 9, the surface of the rotating shaft 9 is fixedly connected with a discharge plate 14, and the surface of the support frame 8 and located at the bottom of the discharge plate 14 is fixedly connected with a protective plate 15 whose function is to The carbon powder is guided; the upper and lower sides of the rotating shaft 9 are movably connected with a reciprocating spring 10, the inside of the support frame 8 and on the surface of the reciprocating spring 10 is movably connected with a limit tube 11, and the surface of the limit tube 11 is fixedly connected with a deformation capsule 12 .
[0025] When in use, a certain amount of toner is placed in the inside of the housing 1, and the other part is placed in the constant pressure tank 6. Then when the housing 1 is printing, the toner in the constant pressure tank 6 is discharged The material plate 14 flows out and is sprayed out after being guided by the protective plate 15. With the outflow of the carbon powder, the gas in the constant pressure tank 6 will also flow out with the carbon powder, so the pressure in the constant pressure tank 6 is gradually lower than that of the housing 1. Therefore, according to the pressure difference, the expression of the pressure difference is △P=P1-P2, which refers to the pressure difference between two points in the system, that is, a strong gas flow or liquid will flow to a part with a low pressure. The carbon powder and gas in the housing 1 have a force that enters the constant pressure groove 6. This force acts on the surface of the movable plate 7, so it will push the movable plate 7 to rotate under the restriction of the rotating shaft 9, and the movable plate 7 will lose the right movement. The limit function of the toner, and when a pressure difference is generated in the housing 1, a certain force will act on the surface of the feeding frame 5. Therefore, the compressed telescopic rod 16 extends to help the toner move, so the toner in the housing 1 Falling into the constant pressure tank 6, thus achieving the effect of automatically adding powder according to the toner pressure to avoid paper waste.
[0026] When the rotating shaft 9 is pushed by the movable plate 7 to rotate, the limit tube 11 will be twisted by the rotating shaft 9 and is in a state of accumulating force. As the rotating shaft 9 continues to rotate, the protective plate 15 will be affected by the vibration force generated by the rotating shaft 9 Do micro-frequency vibration, so the adhered carbon powder on the surface of the protective plate 15 will be shaken off, and when the carbon powder is added and the pressure difference in the constant pressure tank 6 disappears, the force on the movable plate 7 becomes smaller, so the limit The reversal of the tube 11 drives the movable plate 7 to return to its original position, and the reversal of the limit tube 11 will drive the shaft 9 to rotate. The protective plate 15 and the discharge plate 14 vibrate the same, so as to dredge the powder outlet and avoid clogging Effect.
[0027] The above are only preferred specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone familiar with the technical field within the technical scope disclosed in the present invention, according to the technical solutions of the present invention and its Equivalent replacements or changes to the inventive concept should all fall within the protection scope of the present invention.
