Powder box powder quantity detection device

Abstract

The utility model relates to a kind of powder box powder quantity detection devices of shaking powder;The powder box powder quantity detection device of shaking powder includes a transverse fulcrum shaft, several J-shaped plates, two baffle plates, light barrier, several counterweight plates and photoelectric sensor;Fulcrum shaft is rotatably connected with powder box side wall;J-shaped plate tail end and baffle tail end are fixed with fulcrum shaft;J-shaped plate is set between two baffle plates;J-shaped plate front end is equipped with the upper camber face towards up;Baffle plate inner side wall is equipped with the transverse circular ring coaxial matching with the upper camber face;Light barrier one end is fixed with fulcrum shaft end, and the other end is matched with photoelectric sensor;J-shaped plate extends out extension plate backwards;Extension plate is connected with counterweight plate.The utility model directly detects concentrated hot melt powder quantity, and detection result is more reliable.

Description

Technical Field

[0001] This utility model relates to the technical field of powder shaking machine components, and in particular to a powder quantity detection device for a powder shaking box. Background Technology

[0002] The toner shaker is a functional part of the toner shaker that shakes off excess hot-melt toner from the surface of the printing media. To ensure sufficient hot-melt toner in the shaker, a toner quantity detection device is also installed to monitor the amount of toner in the shaker. Existing technology, such as the patented toner weighing system in patent CN221173596U, features a roller at the toner shaker inlet, a lever rotatably connected to the roller at one end, and a weighing sensor connected to the other end of the lever. The printing media passes around the roller and exerts force on it; the weighing sensor detects changes in the magnitude of this force. Hot-melt toner mainly concentrates at the lowest point of the printing media within the shaker. When there is little hot-melt toner, the force exerted by the printing media on the roller is small; when there is more hot-melt toner, the force exerted by the printing media on the roller is large. However, this weighing system does not directly detect the amount of toner in the shaker; instead, it assesses the amount of toner by utilizing the force exerted by the printing media on the roller. Therefore, this weighing system is at risk of misjudging the amount of powder in the powder shaker. Utility Model Content

[0003] The purpose of this invention is to solve the above-mentioned problems and provide a powder quantity detection device for a powder shaker box.

[0004] The technical solution of this utility model is as follows: A powder quantity detection device for a powder shaker includes a transverse fulcrum shaft, several J-shaped plates, two baffles, a light-blocking plate, several counterweights, and a photoelectric sensor; the fulcrum shaft is rotatably connected to the side wall of the powder shaker, providing the fulcrum required for detection; the tail ends of the J-shaped plates and the baffles are both fixedly connected to the fulcrum shaft; the deflection of the J-shaped plates and baffles can drive the fulcrum shaft to rotate; the J-shaped plates are positioned between the two baffles; the baffles restrict the sides of the printing medium; the J-shaped plates restrict the middle of the printing medium; the front end of the J-shaped plates has an upward-facing upper arc surface; the concentrated hot-melt powder portion of the printing medium will naturally fall; the middle of the falling printing medium is supported by the upper arc surface; the inner side wall of the baffle has a transverse ring coaxially matched with the upper arc surface; the transverse ring jams the edge of the falling printing medium, preventing the printing medium from falling. The upper arc surface is pressed down by the gravity of the hot melt powder on the printing medium, causing the fulcrum axis to deflect. One end of the light-blocking plate is fixed to the end of the fulcrum axis, and the other end is connected to the photoelectric sensor. The deflection of the fulcrum axis drives the light-blocking plate to deflect, triggering the photoelectric sensor. The J-shaped plate extends backward to form an extension plate. The extension plate is connected to a counterweight plate. The counterweight plate uses its own gravity to make the front end of the J-shaped plate and the front end of the baffle tilt upward. When the amount of hot melt powder concentrated in the printing medium increases, the front end of the J-shaped plate and the front end of the baffle will slowly fall, driving the fulcrum axis to deflect. The light-blocking plate triggers the photoelectric sensor, indicating that there is an excess of hot melt powder concentrated in the printing medium, and the addition of hot melt powder should be stopped. As the printing medium flows and the hot melt powder is consumed, the front end of the J-shaped plate and the front end of the baffle will tilt upward again, so that the light-blocking plate no longer blocks the photoelectric sensor, and the addition of hot melt powder will start again.

[0005] Preferably, the light-blocking plate and the photoelectric sensor are located on the outside of the powder shaking box to prevent the hot-melt powder from interfering with the photoelectric sensor.

[0006] Preferably, the fulcrum shaft is a polygonal shaft in the middle; both the J-shaped plate and the baffle are provided with polygonal holes that match the fulcrum shaft; the polygonal holes are inserted into the middle of the fulcrum shaft, so that the lifting and lowering of the front end of the J-shaped plate and the front end of the baffle can deflect the fulcrum shaft; a U-shaped clamping plate is fixed to the side of the J-shaped plate; a fastening screw is threaded onto the U-shaped clamping plate; the fastening screw abuts against the side of the fulcrum shaft; the J-shaped plate can be adjusted in position; an L-shaped plate is fixed to the side of the baffle; one end of the L-shaped plate is fixed to the tail end of the J-shaped plate, and the other end is provided with a through hole A that matches the fulcrum shaft; the through hole A can provide guidance for the axial sliding of the baffle; a space is provided between the baffle and the L-shaped plate A. L-shaped plate B and a return spring; one end of L-shaped plate B is inserted into the side of L-shaped plate A, and has a through hole B that matches the fulcrum shaft; the other end of L-shaped plate B faces the baffle; the return spring is fitted outside the fulcrum shaft and is located between L-shaped plate B and the baffle; under normal circumstances, the return spring pushes L-shaped plate B outward; however, when the end of L-shaped plate B is inserted into the side of L-shaped plate A, the through hole B will deflect relative to the fulcrum shaft, jamming the fulcrum shaft; but when L-shaped plate B is pressed, the return spring is squeezed; the through hole B is concentric with the fulcrum shaft, and the baffle can move normally; this allows the position of the baffle and J-shaped plate on the fulcrum shaft to be adjusted according to the width of the printing media.

[0007] Preferably, the upper end of the extension plate has several locking slots A; the counterweight plate is arranged horizontally and the bottom has several locking slots B; the locking slots A and B cooperate with each other to realize the detachable connection between the extension plate and the counterweight plate, which can be adjusted according to the powder demand in the powder shaker box.

[0008] Furthermore, the extension plate has an inward-facing connecting plate at its tail end; the counterweight plate has through holes at both ends of its top; the powder quantity detection device for the powder shaker box also includes a connecting screw and a connecting nut; one end of the connecting screw is threaded to the connecting plate, the middle part passes through the through hole, and the other end is threaded to the connecting nut, connecting all the counterweight plates and J-shaped plates into one unit, ensuring stable lifting and lowering of the front end of the J-shaped plate.

[0009] Preferably, the powder quantity detection device for the powder shaker box further includes a photoelectric support; the photoelectric support is installed on the side wall of the powder shaker box; the photoelectric support has a vertical elongated hole; a height scale is provided on one side of the vertical elongated hole; a photoelectric sensor is installed on the vertical elongated hole; the vertical elongated hole is located above the fulcrum axis; the light-blocking plate is triangular; the large end of the light-blocking plate is fixed to the fulcrum axis, and the small end cooperates with the photoelectric sensor; the higher the installation position of the photoelectric sensor, the later the light-blocking plate blocks the photoelectric sensor, thereby adjusting the detection sensitivity of the photoelectric sensor.

[0010] Furthermore, a bearing is installed at the end of the fulcrum shaft to reduce the rotational resistance of the fulcrum shaft; the bearing is installed on the side wall of the powder shaking box.

[0011] Furthermore, one end of the fulcrum shaft is connected to the light-blocking plate, and the other end is equipped with an adjusting ring plate; the inner wall of the adjusting ring plate abuts against the outer wall of the bearing; several adjusting holes A and several adjusting holes B are respectively provided on both sides of the inner wall of the adjusting ring plate; the adjusting holes A are arranged in a straight line; the adjusting holes B are arranged in a straight line; the straight line of the arrangement of adjusting holes A and the straight line of the arrangement of adjusting holes B are parallel to each other; the powder quantity detection device of the powder shaking box also includes connecting screw A and connecting screw B; the connecting screw A passes through the adjusting hole A and connects to the side wall of the powder shaking box; the connecting screw B passes through the adjusting hole B and connects to the side wall of the powder shaking box; the connecting screw A and connecting screw B are used to connect the adjusting ring plate to the side wall of the powder shaking box; due to the existence of manufacturing errors and installation errors, directly rotating the fulcrum shaft to the side wall of the powder shaking box cannot guarantee that the fulcrum shaft is in a horizontal state; the manufacturing errors and installation errors are compensated by selecting adjusting holes A and adjusting holes B.

[0012] Furthermore, adjacent adjustment holes A partially overlap; adjacent adjustment holes B partially overlap; thus, adjustment holes A and B are used to make a small-range adjustment to the position of the fulcrum shaft end.

[0013] Preferably, the light-blocking plate has an arc-shaped elongated hole in the middle with the pivot axis as the center; the powder quantity detection device of the powder shaking box also includes a limit screw; the limit screw passes through the arc-shaped elongated hole and connects with the side wall of the powder shaking box; the limit screw cooperates with the arc-shaped elongated hole to limit the swing amplitude of the pivot point and improve the lifting stability of the front end of the baffle and the front end of the J-shaped plate.

[0014] The beneficial effects of this utility model are as follows: The powder quantity detection device of this utility model has the following advantages: (1) This utility model directly detects the amount of concentrated hot melt powder, and the detection results are more reliable; (2) The higher the installation position of the photoelectric sensor of this utility model, the later the light shield blocks the photoelectric sensor, thereby adjusting the detection sensitivity of the photoelectric sensor. Attached Figure Description

[0015] Figure 1 This is a side view of the powder quantity detection device for the powder shaker box of this utility model; Figure 2 yes Figure 1 AA section view; Figure 3 yes Figure 2 A magnified view of the I-shaped image; Figure 4 yes Figure 2 BB section view; Figure 5 yes Figure 2 CC section view; Figure 6 yes Figure 2 DD sectional view; Figure 7 This utility model is a three-dimensional powder quantity detection device for a powder shaking box. Figure 1 ; Figure 8 yes Figure 7 II magnified view; Figure 9 This utility model is a three-dimensional powder quantity detection device for a powder shaking box. Figure 2 ; Figure 10 yes Figure 9 III magnified view; Figure 11 This is a photograph of the actual product of the powder quantity detection device for the powder shaking box of this utility model; Figure 12 This is a second photograph of the actual product of the powder quantity detection device for the powder shaking box of this utility model; Figure 13 Here are three actual photos of the powder quantity detection device for the powder shaker box of this utility model; Figure 14 Here are four actual photos of the powder quantity detection device for the powder shaker box of this utility model; In the diagram: 1. Pivot shaft, 11. Bearing, 12. Adjusting ring plate, 121. Adjusting hole A, 122. Adjusting hole B, 2. J-shaped plate, 21. Extension plate, 211. Snap-fit ​​groove A, 212. Connecting plate, 22. Upper arc surface, 23. Polygonal hole, 24. U-shaped clamping plate, 25. Fastening screw, 3. Baffle, 31. L-shaped plate A, 311. Through hole A, 32. L-shaped plate B, 321. Through hole B, 33. Return spring, 34. Horizontal ring, 4. Light blocking plate, 41. Arc-shaped elongated hole, 5. Counterweight plate, 51. Snap-fit ​​groove B, 52. Through hole, 6. Photoelectric sensor, 7. Photoelectric bracket, 71. Vertical elongated hole, 72. Height scale, 8. Limiting screw, 91. Connecting screw, 92. Connecting nut, 93. Connecting screw A, 94. Connecting screw B. Detailed Implementation

[0016] Example 1: See Figure 1-10A powder quantity detection device for a powder shaker includes a transverse fulcrum shaft 1, several J-shaped plates 2, two baffles 3, a light-blocking plate 4, several counterweights 5, and a photoelectric sensor 6. The fulcrum shaft 1 is rotatably connected to the side wall of the powder shaker, providing the fulcrum required for detection. The tail ends of the J-shaped plates 2 and the baffles 3 are both fixedly connected to the fulcrum shaft 1. The deflection of the J-shaped plates 2 and the baffles 3 can drive the fulcrum shaft 1 to rotate. The J-shaped plates 2 are positioned between the two baffles 3. The baffles 3 restrict the sides of the printing medium. The J-shaped plates 2 can restrict the middle of the printing medium. The front end of the J-shaped plates 2 has an upward-facing upper arc surface 22. The portion of the printing medium with concentrated hot-melted powder will naturally fall. The middle of the falling printing medium is supported by the upper arc surface 22. The inner side wall of the baffles 3 has a transverse ring 34 coaxially matched with the upper arc surface 22. The transverse ring 34 locks the edge of the falling printing medium to prevent the printing medium from falling out. The upper arc surface 22 is pressed down by the gravity of the hot melt powder on the printing medium, causing the fulcrum shaft 1 to deflect. One end of the light-blocking plate 4 is fixed to the end of the fulcrum shaft 1, and the other end is connected to the photoelectric sensor 6. The deflection of the fulcrum shaft 1 drives the light-blocking plate 4 to deflect, triggering the photoelectric sensor 6. The J-shaped plate 2 extends backward to form an extension plate 21. The extension plate 21 is connected to a counterweight plate 5. The counterweight plate 5 uses its own gravity to make the front end of the J-shaped plate 2 and the front end of the baffle 3 tilt upward. When the amount of hot melt powder concentrated in the printing medium increases, the front end of the J-shaped plate 2 and the front end of the baffle 3 will slowly fall, driving the fulcrum shaft 1 to deflect. The light-blocking plate 4 triggers the photoelectric sensor 6, indicating that the amount of hot melt powder concentrated in the printing medium is excessive, and the addition of hot melt powder should be stopped. As the printing medium flows and the hot melt powder is consumed, the front end of the J-shaped plate 2 and the front end of the baffle 3 will tilt upward again, so that the light-blocking plate 4 no longer blocks the photoelectric sensor 6, and the addition of hot melt powder will start again.

[0017] Compared with existing technologies, this invention directly detects the amount of concentrated hot-melt powder, resulting in more reliable detection results.

[0018] The light-blocking plate 4 and the photoelectric sensor 6 are located on the outside of the powder shaking box to prevent the hot melt powder from interfering with the photoelectric sensor 6.

[0019] The pivot shaft 1 has a polygonal shaft in the middle; both the J-shaped plate 2 and the baffle 3 are provided with polygonal holes 23 that match the pivot shaft 1; the pivot shaft 1 is inserted into the polygonal holes 23, so that the lifting and lowering of the front ends of the J-shaped plate 2 and the baffle 3 can deflect the pivot shaft 1; a U-shaped clamping plate 24 is fixed to the side of the J-shaped plate 2; the U-shaped clamping plate 24 is threaded with a fastening screw 25; the fastening screw 25 abuts against the side of the pivot shaft 1; the J-shaped plate 2 can be adjusted in position; an L-shaped plate A 31 is fixed to the side of the baffle 3; one end of the L-shaped plate A 31 is fixed to the tail end of the J-shaped plate 2, and the other end is provided with a through hole A 311 that matches the pivot shaft 1; the through hole A 311 can provide guidance for the axial sliding of the baffle 3; an L-shaped plate B is provided between the baffle 3 and the L-shaped plate A 31. 32 and return spring 33; one end of L-shaped plate B 32 is inserted into the side of L-shaped plate A 31, and has a through hole B 321 that matches the fulcrum shaft 1; the other end of L-shaped plate B 32 faces the baffle 3; the return spring 33 is fitted outside the fulcrum shaft 1 and is located between L-shaped plate B 32 and baffle 3; under normal circumstances, the return spring 33 pushes L-shaped plate B 32 outward; but when the end of L-shaped plate B 32 is inserted into the side of L-shaped plate A 31, the through hole B 321 will deflect relative to the fulcrum shaft 1 and jam the fulcrum shaft 1; but when L-shaped plate B 32 is pressed, the return spring is squeezed; the through hole B 321 is concentric with the fulcrum shaft 1, and the baffle 3 can move normally; in this way, the position of baffle 3 and J-shaped plate 2 on the fulcrum shaft 1 can be adjusted according to the width of the printing medium.

[0020] The upper end of the extension plate 21 has several snap-fit ​​grooves A 211; the counterweight plate 5 is arranged horizontally and has several snap-fit ​​grooves B 51 arranged at the bottom; the snap-fit ​​grooves A 211 and B 51 cooperate with each other to realize the detachable connection between the extension plate 21 and the counterweight plate 5, which can be adjusted according to the powder demand in the powder shaker box.

[0021] The extension plate 21 has an inwardly facing connecting plate 212 at its tail end; the counterweight plate 5 has through holes 52 at both ends of its top; the powder quantity detection device of the powder shaking box also includes a connecting screw 91 and a connecting nut 92; one end of the connecting screw 91 is threaded to the connecting plate 212, the middle part passes through the through hole 52, and the other end is threaded to the connecting nut 92, connecting all the counterweight plates 5 and the J-shaped plate 2 into one unit, ensuring the stable lifting and lowering of the front end of the J-shaped plate 2.

[0022] The powder quantity detection device for the powder shaker box also includes a photoelectric bracket 7; the photoelectric bracket 7 is installed on the side wall of the powder shaker box; the photoelectric bracket 7 has a vertical elongated hole 71; a height scale 72 is provided on one side of the vertical elongated hole 71; the photoelectric sensor 6 is installed on the vertical elongated hole 71; the vertical elongated hole 71 is located above the fulcrum shaft 1; the light-blocking plate 4 is triangular; the large end of the light-blocking plate 4 is fixed to the fulcrum shaft 1, and the small end cooperates with the photoelectric sensor 6; the higher the installation position of the photoelectric sensor 6, the later the light-blocking plate blocks the photoelectric sensor 6, thereby adjusting the detection sensitivity of the photoelectric sensor 6.

[0023] A bearing 11 is installed at the end of the fulcrum shaft 1, which can reduce the rotational resistance of the fulcrum shaft 1; the bearing 11 is installed on the side wall of the powder shaking box.

[0024] The light-blocking plate 4 has an arc-shaped elongated hole 41 in the middle with the axis of the fulcrum 1 as the center; the powder quantity detection device of the powder shaking box also includes a limit screw 8; the limit screw 8 passes through the arc-shaped elongated hole 41 and connects with the side wall of the powder shaking box; the limit screw 8 cooperates with the arc-shaped elongated hole 41 to limit the swing amplitude of the fulcrum and improve the lifting stability of the front end of the baffle 3 and the front end of the J-shaped plate 2.

[0025] The working principle of this embodiment is as follows: The counterweight plate 5 uses its own gravity to make the front end of the J-shaped plate 2 and the front end of the baffle 3 tilt upwards; when the amount of hot melt powder concentrated in the printing medium increases, the front end of the J-shaped plate 2 and the front end of the baffle 3 will slowly fall, driving the fulcrum shaft 1 to deflect; the light-blocking plate 4 triggers the photoelectric sensor 6, indicating that the amount of hot melt powder concentrated in the printing medium is excessive, and the addition of hot melt powder should be stopped; as the printing medium flows and the hot melt powder is consumed, the front end of the J-shaped plate 2 and the front end of the baffle 3 will tilt upwards again, so that the light-blocking plate 4 no longer blocks the photoelectric sensor 6, and the addition of hot melt powder will start again. Under normal circumstances, the return spring 33 pushes the L-shaped plate 32 outward; however, when the end of the L-shaped plate 32 inserts into the side of the L-shaped plate 31, the through hole 321 will deflect relative to the fulcrum shaft 1, thus jamming the fulcrum shaft 1; but when the L-shaped plate 32 is pressed down, the return spring is squeezed; the through hole 321 is concentric with the fulcrum shaft 1, and the baffle 3 can move normally; this allows the position of the baffle 3 and the J-shaped plate 2 on the fulcrum shaft 1 to be adjusted according to the width of the printing medium. The limit screw 8 cooperates with the arc-shaped elongated hole 41 to limit the swing amplitude of the fulcrum, improving the lifting stability of the front end of the baffle 3 and the front end of the J-shaped plate 2.

[0026] Example 2: Example 2 is basically the same as Example 1, and the similarities will not be repeated. The difference is that one end of the fulcrum shaft 1 is connected to the light-blocking plate 4, and the other end is equipped with an adjusting ring plate 12; the inner wall of the adjusting ring plate 12 abuts against the outer wall of the bearing 11; several adjusting holes A 121 and several adjusting holes B 122 are respectively provided on both sides of the inner wall of the adjusting ring plate 12; the adjusting holes A 121 are arranged in a straight line; the adjusting holes B 122 are arranged in a straight line; the straight line of the arrangement of the adjusting holes A 121 and the straight line of the arrangement of the adjusting holes B 122 are parallel to each other; the powder quantity detection device of the powder shaking box also includes Connecting screw A 93 and connecting screw B 94; connecting screw A 93 passes through adjusting hole A 121 and connects to the side wall of the powder shaking box; connecting screw B 94 passes through adjusting hole B 122 and connects to the side wall of the powder shaking box; connecting screw A 93 and connecting screw B 94 are used to connect the adjusting ring plate 12 to the side wall of the powder shaking box; due to manufacturing and installation errors, directly rotating the fulcrum shaft 1 to the side wall of the powder shaking box cannot guarantee that the fulcrum shaft 1 is in a horizontal state; adjusting holes A 121 and B 122 are selected to compensate for the manufacturing and installation errors.

[0027] The adjacent adjustment holes A 121 partially overlap; the adjacent adjustment holes B 122 partially overlap; thus, the position of the end of the fulcrum shaft 1 can be adjusted within a small range using adjustment holes A 121 and adjustment holes B 122.

Claims

1. A powder quantity detection device for a powder shaker box, characterized in that, It includes a transverse fulcrum shaft, several J-shaped plates, two baffles, a light-blocking plate, several counterweight plates, and a photoelectric sensor; the fulcrum shaft is rotatably connected to the side wall of the powder-shaking box; the tail ends of the J-shaped plates and the baffles are both fixedly connected to the fulcrum shaft; the J-shaped plates are positioned between the two baffles; the front end of the J-shaped plates has an upward-facing arc surface; the inner side wall of the baffles has a transverse ring coaxially matched with the arc surface; one end of the light-blocking plate is fixedly connected to the end of the fulcrum shaft, and the other end is engaged with the photoelectric sensor; the J-shaped plates extend rearward to form an extension plate; the extension plate is connected to the counterweight plate.

2. The powder quantity detection device for the powder shaker box according to claim 1, characterized in that: The light-blocking plate and photoelectric sensor are located on the outside of the powder-shaking box.

3. The powder quantity detection device for the powder shaker box according to claim 1, characterized in that: The fulcrum shaft is polygonal in the middle; both the J-shaped plate and the baffle have polygonal holes that match the fulcrum shaft; a U-shaped clamping plate is fixed to the side of the J-shaped plate; the U-shaped clamping plate is threaded with a fastening screw; the fastening screw abuts against the side of the fulcrum shaft; an L-shaped plate A is fixed to the side of the baffle; one end of the L-shaped plate A is fixed to the tail end of the J-shaped plate, and the other end has a through hole A that matches the fulcrum shaft; an L-shaped plate B and a return spring are provided between the baffle and the L-shaped plate A; one end of the L-shaped plate B is inserted into the side of the L-shaped plate A and has a through hole B that matches the fulcrum shaft; the other end of the L-shaped plate B faces the baffle; the return spring is sleeved outside the fulcrum shaft and is located between the L-shaped plate B and the baffle.

4. The powder quantity detection device for the powder shaker box according to claim 1, characterized in that: The upper part of the extension plate has several locking slots A; the counterweight plate is arranged horizontally and the bottom has several locking slots B; the locking slots A and B cooperate with each other.

5. The powder quantity detection device for the powder shaker box according to claim 1, characterized in that: It also includes a photoelectric bracket; the photoelectric bracket is installed on the side wall of the powder shaking box; the photoelectric bracket has a vertical elongated hole; a height scale is provided on one side of the vertical elongated hole; a photoelectric sensor is installed on the vertical elongated hole; the vertical elongated hole is located above the fulcrum axis; the light blocking plate is triangular; the large end of the light blocking plate is fixed to the fulcrum axis, and the small end cooperates with the photoelectric sensor.

6. The powder quantity detection device for the powder shaker box according to claim 5, characterized in that: A bearing is installed at the end of the pivot shaft; the bearing is mounted on the side wall of the powder shaking box.

7. The powder quantity detection device for the powder shaker box according to claim 6, characterized in that: One end of the fulcrum shaft is connected to the light-blocking plate, and the other end is equipped with an adjusting ring plate; the inner wall of the adjusting ring plate abuts against the outer wall of the bearing; several adjusting holes A and several adjusting holes B are respectively provided on both sides of the inner wall of the adjusting ring plate; the adjusting holes A are arranged in a straight line; the adjusting holes B are arranged in a straight line; the straight line of the arrangement of adjusting holes A and the straight line of the arrangement of adjusting holes B are parallel to each other; the powder quantity detection device of the powder shaking box also includes connecting screw A and connecting screw B; the connecting screw A passes through the adjusting hole A and connects to the side wall of the powder shaking box; the connecting screw B passes through the adjusting hole B and connects to the side wall of the powder shaking box.

8. The powder quantity detection device for the powder shaker box according to claim 7, characterized in that: The adjacent regulating holes A partially overlap; the adjacent regulating holes B partially overlap.

9. The powder quantity detection device for the powder shaker box according to claim 1, characterized in that: The light-blocking plate has an arc-shaped elongated hole in the middle with the pivot axis as the center; the powder quantity detection device of the powder shaking box also includes a limit screw; the limit screw passes through the arc-shaped elongated hole and connects with the side wall of the powder shaking box.

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