Offset powder distribution box

Abstract

The invention relates to an offset powder distribution box. The offset powder distribution box comprises a box body, a powder homogenizing roller and a powder feeding auger, a powder distribution cavity and a powder homogenizing cavity which are communicated up and down are formed in the box body; a powder discharging opening is formed in the bottom of the powder homogenizing cavity; the powder feeding auger is horizontally arranged at the top of the box body and comprises a powder feeding pipe, a powder feeding motor and an auger rod; the auger rod is inserted into the powder feeding pipe; the powder feeding motor is in driving connection with the auger rod; the powder feeding pipe horizontally penetrates through the left and right sides of the box; a circulating powder feeding opening is formed in the bottom of the powder feeding pipe; one end of the circulating powder feeding port is close to the bilaterally symmetrical central plane of the powder distribution cavity, and the other end extends towards the powder feeding motor; the powder homogenizing roller is horizontally arranged at the bottom of the box body and comprises a roller body and a powder homogenizing motor; the roller body is rotationally mounted in the powder homogenizing cavity; the powder homogenizing motor is in driving connection with the roller body; and more than three fan-shaped powder accommodating grooves are distributed on the circumference of the side surface of the roller body. Powder conveyed by the auger rod falls into the center of the powder distribution cavity through the circulating powder feeding opening; and the powder in the powder containing groove is rearranged every time the powder homogenizing roller slowly rotates by a certain angle, so that uniform powder distribution is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of powder distribution of a powder shaking machine, and in particular to an offset powder distribution box. Background Art

[0002] The powder distribution box is a component used for distributing powder on a powder shaking machine. There are two types of powder distribution boxes in the prior art: the first type is a powder distribution box with only one powder inlet at the top; the powder replenishment of this type of powder distribution box depends entirely on manual replenishment; the second type is a powder distribution box with not only one manual powder inlet, but also a circulating powder inlet; this type of powder distribution box is provided with a circulating powder shaking system, which can reuse the powder that has fallen to the bottom of the powder shaking box, such as the patented circulating powder shaking system with the authorization announcement number CN220752529U. Powder distribution boxes with circulating powder shaking systems have become a new trend in the development of modern powder distribution boxes because of their powder-saving function. However, in this type of powder distribution box, the powder replenished from the manual powder inlet can be evenly replenished into the powder distribution box by relying on manual control, and the powder added from the circulating powder inlet can easily accumulate at the circulating powder inlet. Even if the auger C in the technical solution with the authorization announcement number CN220752529U conveys powder, it is inevitable that there will be more powder at the powder distribution holes close to the circulating powder inlet, and less powder at the powder distribution holes far from the circulating powder inlet, which is not conducive to the uniform distribution of the powder box. Summary of the invention

[0003] The purpose of the present invention is to solve the above-mentioned problem and provide an offset powder dispensing box.

[0004] The technical scheme of the present invention is as follows: an offset powder distribution box comprises a box body, a powder distribution roller, and a powder feeding auger; the box body provides sufficient space for the powder distribution box to distribute powder; the top of the box body is open, which is a manual powder feeding port; workers add powder into the box body from the manual powder feeding port; a powder distribution chamber is provided inside the box body; a circular arc-shaped powder distribution chamber is provided at the bottom of the box body; the bottom of the powder distribution chamber is connected with the top of the powder distribution chamber; the powder distribution chamber transports the added powder to the powder distribution chamber; a powder discharge port is provided at the bottom of the powder distribution chamber for discharging the powder to achieve a powder distribution effect; The powder feeding auger is horizontally arranged at the top of the box body, including a powder feeding pipe, a powder feeding motor, and an auger rod; the auger rod is inserted into the powder feeding pipe; the threaded side of the auger rod abuts against the inner wall of the powder feeding pipe; the auger rod becomes the main powder conveying component; the powder feeding motor is installed on the side wall of the box body and is drivingly connected to the auger rod; the powder feeding motor outputs torque to drive the auger rod to rotate, so that the auger rod horizontally conveys the powder; the powder feeding pipe horizontally penetrates through the left and right side surfaces of the box body; a circulating powder feeding port is arranged at the bottom of the powder feeding pipe; the powder horizontally conveyed by the auger rod is discharged from the circulating powder feeding port and enters the powder distribution cavity to achieve the purpose of powder circulation; different from the prior art, one end of the circulating powder feeding port is close to the left and right symmetry center plane of the powder distribution cavity, and the other end extends towards the powder feeding motor; the powder horizontally conveyed by the auger rod is discharged at the left and right symmetry center plane of the powder distribution cavity and can fall to the exact center position of the powder leveling roller, so that the powder mixing roller can mix the powder evenly; on the other hand, the extended powder distribution of the circulating powder feeding port can effectively prevent the powder from jamming the auger rod and causing damage; The powder leveling roller is horizontally arranged at the bottom of the box body, including a roller body and a powder leveling motor; the roller body is rotatably installed in the powder leveling cavity; the powder leveling motor is installed on one side of the box body and is drivingly connected to the roller body; the powder leveling motor outputs torque to drive the roller body to rotate; more than three fan-shaped powder receiving grooves are circumferentially distributed on the side surface of the roller body; the rotating roller body makes the powder receiving grooves keep flipping; during the flipping process of the powder receiving grooves, every time the roller body flips a certain angle, the powder in the powder receiving grooves will be redistributed and gradually extend to the left and right sides to achieve the effect of uniform powder distribution; the uniformly distributed powder is discharged from the powder discharging port to form the effect of uniform powder distribution.

[0005] Preferably, the front and rear side walls of the powder distribution cavity are both inclined inwards; the powder distribution cavity forms a hopper cavity structure, which is convenient for the powder to concentrate towards the middle.

[0006] Further, the left and right side walls of the powder distribution cavity are inclined plates inclined inwards; the powder distribution cavity further forms a hopper cavity structure, which is convenient for the powder to concentrate towards the middle.

[0007] Preferably, the offset powder distribution box further includes a C-shaped plate; the C-shaped plate wraps the powder feeding pipe; the C-shaped plate protects the powder feeding pipe; a notch corresponding to the circulating powder feeding port is arranged at the bottom of the C-shaped plate; the powder discharged from the circulating powder feeding port enters the powder distribution cavity through this notch.

[0008] Further, a bracket extending upwards is arranged at the edge of the notch; the powder feeding pipe is erected on the bracket; the bracket supports the powder feeding pipe and reduces the deflection deformation of the powder feeding pipe.

[0009] Further, the bracket is formed by flanging upwards from the notch, making the structure more compact.

[0010] Preferably, the powder feeding auger further includes a U-shaped frame, a driving gear, and a driven gear; the powder feeding motor is installed on the side wall of the box body through the U-shaped frame to establish a stable connection; the driving gear is coaxially fixed to the output shaft of the powder feeding motor; the auger rod penetrates through the side wall of the box body; the end of the auger rod penetrating through the side wall of the box body is coaxially fixed to the driven gear; the meshing and cooperation of the driving gear and the driven gear transmit the torque output by the powder feeding motor to the auger rod.

[0011] Preferably, the powder leveling roller further includes a small gear A, a large gear A, a small gear B, and a large gear B; the small gear A is coaxially fixed to the output shaft of the powder leveling motor; the large gear A is coaxially fixed to the small gear B; the roller body penetrates through the side wall of the box body; the end of the roller body penetrating through the side wall of the box body is coaxially fixed to the large gear B; the small gear A meshes with the large gear A; the small gear B meshes with the large gear B; the meshing and cooperation of the small gear A and the large gear A, and the meshing and cooperation of the small gear B and the large gear B transmit the torque output by the powder leveling motor to the powder leveling roller, and at the same time keep the powder leveling roller in a controllable low-speed range.

[0012] Preferably, the offset powder distribution box further includes a housing and a cover plate; the housing covers the outside of the box body; the cover plate is arranged above the box body; the front end of the cover plate is hinged to the housing; the size of the cover plate corresponds to the manual powder feeding port; the housing and the cover plate protect the box body.

[0013] Furthermore, the cover plate includes a transparent plate and a fastening edge member; the front and rear edges of the transparent plate are both fastened with the fastening edge member; workers can directly observe the powder situation in the powder distribution cavity through the transparent plate, and then decide whether to add powder; the fastening edge member fastened to the front edge of the transparent plate is hinged to the housing, so that the cover plate can be turned up for easy opening.

[0014] Preferably, the powder discharge port is a long and narrow hole arranged along the axial direction of the powder leveling cavity, so as to facilitate the uniform discharge of the powder from the powder discharge port.

[0015] The beneficial effects of the present invention are as follows: The offset powder distribution box of the present invention has the following advantages: (1) In the present invention, the circulating powder feeding port is arranged at the midpoint position close to the powder feeding pipe, so that the powder conveyed by the auger rod directly falls to the center position of the powder distribution cavity; the powder leveling roller rotates slowly; every time the powder leveling roller rotates a certain angle, the powder in the powder holding groove is rearranged, so as to gradually extend to the left and right ends until the powder is evenly arranged and then discharged from the powder discharge port, achieving the effect of uniform powder distribution; (2) The front, rear, left and right side walls of the powder distribution cavity are all inclined inward to form a hopper cavity structure, which is convenient for the powder to concentrate towards the middle. Description of the Drawings

[0016] Figure 1 is a three-dimensional view of the offset powder distribution box of the present invention in Embodiment 1; Figure 2 is Figure 1 the top view of Figure 3 is Figure 2 the A-A cross-sectional view of Figure 4 is Figure 3 the B-B cross-sectional view of Figure 5 is Figure 4 the enlarged view I of Figure 6 is Figure 4 the enlarged view II of Figure 7 is Figure 4 the C-C cross-sectional view of Figure 8 is Figure 7 the enlarged view III of Figure 9 is the perspective view of the offset powder distribution box of the present invention in Embodiment 2; Figure 10 is Figure 9 the vertical cross-sectional view of Figure 11 is Figure 10 the D-D cross-sectional view of Figure 12 is the physical diagram of the present invention; In the figure: 1. Box body, 11. Manual powder feeding port, 12. Powder distribution chamber, 121. Inclined plate, 13. Powder leveling chamber, 131. Powder discharging port, 2. Powder leveling roller, 21. Roller body, 211. Powder containing groove, 22. Powder leveling motor, 23. Small gear A, 24. Large gear A, 25. Small gear B, 26. Large gear B, 31. Powder feeding pipe, 311. Circulating powder feeding port, 32. Powder feeding motor, 33. Screw rod, 34. U-shaped frame, 35. Driving gear, 36. Driven gear, 4. C-shaped plate, 41. Notch, 42. Bracket, 5. Outer shell, 6. Cover plate, 61. Transparent plate, 62. Buckling member. Specific embodiments

[0017] Embodiment 1: Refer to Figures 1 - 8 , an offset powder distribution box includes a box body 1, a powder leveling roller 2, and a powder feeding auger; the box body 1 provides sufficient space for powder distribution of the powder distribution box; the top of the box body 1 is open, serving as the manual powder feeding port 11; workers add powder into the box body 1 from the manual powder feeding port 11; a powder distribution chamber 12 is provided inside the box body 1; a circular arc-shaped powder leveling chamber 13 is provided at the bottom of the box body 1; the bottom of the powder distribution chamber 12 is communicated with the top of the powder leveling chamber 13; the powder distribution chamber 12 conveys the added powder to the powder leveling chamber 13; a powder discharging port 131 is provided at the bottom of the powder leveling chamber 13 for discharging the powder to achieve the powder distribution effect; The powder feeding auger is horizontally arranged on the top of the box body 1 and includes a powder feeding pipe 31, a powder feeding motor 32, and an auger rod 33; the auger rod 33 is inserted into the powder feeding pipe 31; the threaded side of the auger rod 33 abuts against the inner wall of the powder feeding pipe 31; the auger rod 33 becomes the main powder conveying component; the powder feeding motor 32 is installed on the side wall of the box body 1 and is drivingly connected to the auger rod 33; the powder feeding motor 32 outputs torque to drive the auger rod 33 to rotate, so that the auger rod 33 horizontally conveys the powder; the powder feeding pipe 31 horizontally penetrates through the left and right side surfaces of the box body 1; a circulating powder feeding port 311 is arranged at the bottom of the powder feeding pipe 31; the powder horizontally conveyed by the auger rod 33 is discharged from the circulating powder feeding port 311 and enters the powder distribution cavity 12 to achieve the purpose of powder circulation; different from the prior art, one end of the circulating powder feeding port 311 is close to the left-right symmetry center plane of the powder distribution cavity 12, and the other end extends towards the powder feeding motor 32; the powder horizontally conveyed by the auger rod 33 is discharged at the left-right symmetry center plane of the powder distribution cavity 12 and can fall onto the exact center position of the powder leveling roller 2, so that the powder mixing roller can evenly mix the powder; on the other hand, the extended powder distribution of the circulating powder feeding port 311 can effectively prevent the powder from jamming the auger rod 33 and causing damage; The powder leveling roller 2 is horizontally arranged at the bottom of the box body 1 and includes a roller body 21 and a powder leveling motor 22; the roller body 21 is rotatably installed in the powder leveling cavity 13; the powder leveling motor 22 is installed on one side of the box body 1 and is drivingly connected to the roller body 21; the powder leveling motor 22 outputs torque to drive the roller body 21 to rotate; more than three fan-shaped powder receiving grooves 211 are circumferentially distributed on the side surface of the roller body 21; the rotating roller body 21 causes the powder receiving grooves 211 to continuously flip; during the flipping process of the powder receiving grooves 211, every time the roller body 21 flips a certain angle, the powder in the powder receiving grooves 211 will be redistributed and gradually extend towards the left and right sides to achieve the effect of uniform powder distribution; the uniformly distributed powder is discharged from the powder discharge port 131 to form the effect of uniform powder distribution. In this embodiment, there are four powder receiving grooves 211 on one roller body 21.

[0018] Compared with the prior art, the present invention arranges the circulating powder feeding port 311 at a position close to the midpoint of the powder feeding pipe 31, so that the powder conveyed by the auger rod 33 directly falls onto the center position of the powder distribution cavity 12; the powder leveling roller 2 rotates slowly; every time the powder leveling roller 2 rotates a certain angle, the powder in the powder receiving grooves 211 is rearranged, so as to gradually extend towards the left and right ends until the powder is uniformly arranged and then discharged from the powder discharge port 131 to achieve the effect of uniform powder distribution.

[0019] The front and rear side walls of the powder distribution cavity 12 are both inclined inwards; the powder distribution cavity 12 forms a hopper cavity structure, which is convenient for the powder to concentrate towards the middle.

[0020] The left and right side walls of the powder distribution cavity 12 are inclined plates 121 inclined inwards; the powder distribution cavity 12 further forms a hopper cavity structure, which is convenient for the powder to concentrate towards the middle.

[0021] The offset powder distribution box further includes a C-shaped plate 4; the C-shaped plate 4 wraps the powder delivery pipe 31; the C-shaped plate 4 protects the powder delivery pipe 31; a notch 41 corresponding to the circulating powder delivery port 311 is provided at the bottom of the C-shaped plate 4; the powder discharged from the circulating powder delivery port 311 enters the powder distribution chamber 12 through this notch 41.

[0022] A bracket 42 extending upward is provided at the edge of the notch 41; the powder delivery pipe 31 is mounted on the bracket 42; the bracket 42 supports the powder delivery pipe 31 and reduces the deflection deformation of the powder delivery pipe 31.

[0023] The bracket 42 is formed by flanging upward from the notch 41, making the structure more compact.

[0024] The upper edges of the flanges on the left and right sides of the notch 41 are arc-shaped edges corresponding to the outer wall of the powder delivery pipe 31, so as to increase the contact area with the powder delivery pipe 31 and improve the support stability.

[0025] The powder delivery auger further includes a U-shaped frame 34, a driving gear 35, and a driven gear 36; the powder delivery motor 32 is installed on the side of the box body 1 through the U-shaped frame 34 to establish a stable connection; the driving gear 35 is coaxially fixed to the output shaft of the powder delivery motor 32; the auger rod 33 penetrates the side wall of the box body 1; the end of the auger rod 33 penetrating the side wall of the box body 1 is coaxially fixed to the driven gear 36; the meshing and cooperation of the driving gear 35 and the driven gear 36 transmit the torque output by the powder delivery motor 32 to the auger rod 33.

[0026] The powder leveling roller 2 further includes a small gear A 23, a large gear A 24, a small gear B 25, and a large gear B 26; the small gear A 23 is coaxially fixed to the output shaft of the powder leveling motor 22; the large gear A 24 is coaxially fixed to the small gear B 25; the roller body 21 penetrates the side wall of the box body 1; the end of the roller body 21 penetrating the side wall of the box body 1 is coaxially fixed to the large gear B 26; the small gear A 23 meshes with the large gear A 24; the small gear B 25 meshes with the large gear B 26; the meshing and cooperation of the small gear A 23 and the large gear A 24, and the meshing and cooperation of the small gear B 25 and the large gear B 26 transmit the torque output by the powder leveling motor 22 to the powder leveling roller 2, and at the same time keep the powder leveling roller 2 in a controllable low-speed range.

[0027] The working process of this embodiment: When the powder delivery motor 32 is started, the torque it outputs is transmitted to the auger rod 33 through the driving gear 35 and the driven gear 36; the auger rod 33 drives the powder to approach the circulating powder delivery port 311; because the edge of the circulating powder delivery port 311 is arranged near the left and right symmetry center plane of the powder distribution chamber 12; so the powder conveyed by the auger rod 33 falls into the powder distribution chamber 12 at a position close to the circulating powder delivery port 311; this falling position is close to the left and right symmetry center plane of the powder distribution chamber 12, so the powder in the powder distribution chamber 12 accumulates at the center position of the powder distribution chamber 12; The powder equalizing motor 22 starts at intervals; each time it starts, the torque output by the powder equalizing motor 22 is successively transmitted to the roller body 21 through the pinion gear A 23, the large gear A 24, the pinion gear B 25, and the large gear B 26, so the rotation speed of the roller body 21 is very slow; during the slow rotation process of the roller body 21, the powder in the powder receiving groove 211 is continuously rearranged and then extends to the left and right sides, gradually reaching a uniform distribution; finally, these powders are evenly discharged from the powder discharge port 131.

[0028] Embodiment 2: Refer to Figures 9 - 11 , Embodiment 2 is basically the same as Embodiment 1, and the same parts will not be described again. The differences are: the offset powder distribution box further includes a housing 5 and a cover plate 6; the housing 5 covers the outside of the box body 1; the cover plate 6 is arranged above the box body 1; the front end of the cover plate 6 is hinged to the housing 5; the size of the cover plate 6 corresponds to the manual powder feeding port 11; the housing 5 and the cover plate 6 protect the box body 1.

[0029] The housing 5 can also be used as a carrier for some basic hardware. For example, hardware such as a display screen, an emergency stop button, a signal lamp, and an alarm lamp can all be installed on the housing 5 to perform corresponding control on the powder distribution box.

[0030] The cover plate 6 includes a transparent plate 61 and a buckling member 62; the front and rear edges of the transparent plate 61 are buckled with the buckling member 62; workers can directly observe the powder situation in the powder distribution cavity 12 through the transparent plate 61, and then decide whether to add powder; the buckling member 62 buckled on the front edge of the transparent plate 61 is hinged to the housing 5, so that the cover plate 6 can be turned up for easy opening.

[0031] The powder discharge port 131 is a slender long hole arranged along the axial direction of the powder equalizing cavity 13, so as to facilitate the uniform discharge of the powder from the powder discharge port 131.

[0032] The threaded section of the auger rod 33 is arranged between the left and right symmetric center plane of the powder distribution cavity 12 and the outer end of the auger rod 33, meeting the powder conveying requirements and ensuring that the powder can fall centrally from the left and right symmetric center plane of the powder distribution cavity 12 in time.

Claims

1. A bias powder distribution box, characterized in that, It includes a box body, a powder leveling roller, and a powder feeding auger; the top of the box body is open, serving as an artificial powder feeding port; a powder distributing cavity is arranged inside the box body; an arc-shaped powder leveling cavity is arranged at the bottom of the box body; the bottom of the powder distributing cavity is communicated with the top of the powder leveling cavity; a powder discharging port is arranged at the bottom of the powder leveling cavity. The powder feeding auger is horizontally arranged at the top of the box body and includes a powder feeding pipe, a powder feeding motor, and a screw rod; the screw rod is inserted into the powder feeding pipe; the threaded side of the screw rod abuts against the inner wall of the powder feeding pipe; the powder feeding motor is installed on the side wall of the box body and is drivingly connected to the screw rod; the powder feeding pipe horizontally penetrates through the left and right side walls of the box body; a circulating powder feeding port is arranged at the bottom of the powder feeding pipe; one end of the circulating powder feeding port is close to the left and right symmetric center plane of the powder distributing cavity, and the other end extends towards the direction of the powder feeding motor. The powder leveling roller is horizontally arranged at the bottom of the box body and includes a roller body and a powder leveling motor; the roller body is rotatably installed in the powder leveling cavity; the powder leveling motor is installed on one side of the box body and is drivingly connected to the roller body; more than three fan-shaped powder receiving grooves are circumferentially distributed on the side surface of the roller body.

2. The offset powder distribution bin according to claim 1, wherein: The front and rear side walls of the powder distributing cavity are both inclined inwards.

3. The offset powder distribution box according to claim 1 or 2, characterized in that: The left and right side walls of the powder distributing cavity are inclined plates that incline inwards.

4. The offset powder distribution box according to claim 1, characterized in that: It further includes a C-shaped plate; the C-shaped plate wraps around the powder feeding pipe; a notch corresponding to the circulating powder feeding port is arranged at the bottom of the C-shaped plate.

5. The offset powder distribution bin according to claim 4, wherein: A support extending upwards is arranged at the edge of the notch; the powder feeding pipe is mounted on the support.

6. The offset powder distribution box according to claim 1, wherein: The powder feeding auger further includes a U-shaped frame, a driving gear, and a driven gear; the powder feeding motor is installed on the side of the box body through the U-shaped frame; the driving gear is coaxially fixed to the output shaft of the powder feeding motor; the screw rod penetrates through the side wall of the box body; the end of the screw rod penetrating through the side wall of the box body is coaxially fixed to the driven gear.

7. The offset powder distribution bin according to claim 1, characterized in that: The powder leveling roller further includes a small gear A, a large gear A, a small gear B, and a large gear B; the small gear A is coaxially fixed to the output shaft of the powder leveling motor; the large gear A is coaxially fixed to the small gear B; the roller body penetrates through the side wall of the box body; the end of the roller body penetrating through the side wall of the box body is coaxially fixed to the large gear B; the small gear A meshes with the large gear A; the small gear B meshes with the large gear B.

8. The offset powder distribution box according to claim 1, characterized in that: It further includes an outer shell and a cover plate; the outer shell covers the outside of the box body; the cover plate is arranged above the box body; the front end of the cover plate is hinged to the outer shell; the size of the cover plate corresponds to that of the artificial powder feeding port.

9. The offset powder distribution box according to claim 8, characterized in that: The cover plate includes a transparent plate and a buckling edge member; the front and rear edges of the transparent plate are both buckled with the buckling edge member; the buckling edge member buckled on the front edge of the transparent plate is hinged to the outer shell.

10. The offset powder distribution box according to claim 1, characterized in that: The powder discharging port is a long and narrow hole arranged along the axial direction of the powder leveling cavity.

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