Ball weighing machine

By designing a ball checkweighing machine and using a material dividing shaft and a shifting device to realize automatic checkweighing and classification of Buddhist beads, the problem of low efficiency of manual checkweighing is solved and the continuity and accuracy of production are improved.

CN223417797UActive Publication Date: 2025-10-10ZHUHAI CHUANGFEI AUTOMATION CO LTD
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Patent Information

Application Number
CN202521852696.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-29
Publication Date
2025-10-10
Estimated Expiration
2035-08-29

AI Technical Summary

Technical Problem

The manual weighing and classification methods in the existing Buddhist beads production process cannot be carried out accurately and quickly, resulting in poor production continuity, low efficiency and high error rate.

Method used

A ball checkweighing machine was designed, which included feeding, sorting, shifting, weighing and receiving devices. The automatic checkweighing and classification of balls were achieved through the sorting shaft and shifting device, and the machine was automatically controlled by a PLC controller.

Benefits of technology

It realizes the automatic weighing and classification of Buddhist beads, reduces manual participation, improves the efficiency and convenience of weighing, and ensures the continuity and accuracy of production.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a ball weighing machine, and belongs to the technical field of weighing equipment. The ball weighing machine comprises a rack, and a feeding device, a distributing device, a shifting device, a weighing device and a receiving device which are arranged on the rack, a discharging port of the feeding device communicates with a feeding port of the material distributing device, the material distributing device comprises a material distributing rotating shaft and a material stopping block, and a plurality of material distributing holes are evenly distributed in the material distributing rotating shaft in the circumferential direction of the material distributing rotating shaft. A penetrating through hole is formed in the bottom of the material stopping block, the material separating rotating shaft is sleeved with the material stopping block, and the through hole is located below the material separating hole; the shifting device is arranged below the material stopping block, and the weighing device and the material receiving device are arranged below the shifting device. According to the ball weighing machine, efficient automatic weighing and classification can be achieved, the manual participation degree is low, convenience is good, and the weighing efficiency is high.
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Description

Technical Field

[0001] The utility model relates to the technical field of weighing equipment, in particular to a ball weighing machine suitable for Buddhist beads. Background Art

[0002] Spherical objects such as metal and wooden balls are often used in daily life. To ensure uniform quality, sphere production requires screening for diameter and weight. For example, Buddhist beads (rosary beads) are portable instruments used by Buddhists for chanting and counting. They are widely used by monks and laymen alike, and as ornaments, they have long been popular and hold a promising market prospect. Based on how they are used, Buddhist beads are generally categorized into three types: holding beads, wearing beads, and hanging beads. Based on their material, they can be further divided into wooden beads, bodhi beads, and jade beads. Currently, with the continuous improvement of manufacturing technology, the processing quality of Buddhist beads is also constantly improving. The process often begins with forming a spherical shape using a forming tool, and then polishing it to a standard spherical shape. To ensure the consistency of the quality of the beads, diameter screening and weighing are often required. The current method relies on manual weight checking followed by sorting. The weighing process, in particular, is not accurate or fast, and stops as soon as the operator leaves the room, which makes production continuity and efficiency difficult to guarantee, and results in a high error rate. Utility Model Content

[0003] In order to overcome the shortcomings of the existing technology, the purpose of the utility model is to provide a ball weighing machine suitable for Buddhist beads, which can realize automatic weighing and classification, with low manual participation, good convenience and high weighing efficiency.

[0004] In order to solve the above problems, the technical solutions adopted by the present invention are as follows:

[0005] A ball checkweighing machine comprises a frame and a feeding device, a dividing device, a shifting device, a weighing device and a receiving device arranged on the frame; the discharge port of the feeding device is connected to the feed port of the dividing device, the dividing device comprises a dividing shaft and a blocking block, the dividing shaft is in the shape of a hollow cylinder, and a plurality of dividing holes corresponding to the discharge port of the feeding device are evenly distributed on the dividing shaft along its circumference; a through hole is provided at the bottom of the blocking block, the blocking block is sleeved on the dividing shaft, and the through hole is located below the dividing hole; the dividing shaft is rotatably mounted on the frame to The material distribution hole can be connected with the discharge port or the through hole. When the material distribution hole is connected with the discharge port, one and only one ball falls into the material distribution shaft. When the material distribution hole is connected with the through hole, the ball in the material distribution shaft falls into the through hole. The shifting device is arranged below the blocking block, and can receive the material falling from the through hole and transport it to the weighing device or the receiving device. The weighing device is arranged below the shifting device and can detect the weight of the content in the weighing device. The receiving device is arranged below the shifting device, and is used to classify and receive the material falling from the shifting device.

[0006] As a preferred embodiment of the present invention, the material dividing device also includes a screw module, a bracket and a rotating motor; the material dividing shaft and the rotating motor are installed on the screw module through the bracket, and the output shaft of the rotating motor is connected to the material dividing shaft to drive the material dividing shaft to rotate along its axial direction; the screw module is installed on the frame to drive the material dividing shaft to perform linear reciprocating motion along its axial direction.

[0007] As a preferred embodiment of the present invention, the distribution holes are arranged in a circumferential array along the distribution shaft, with the circumferential direction of the distribution shaft as a column, and there are multiple columns of distribution holes along the axial direction of the distribution shaft. The diameters of the distribution holes in the same column are the same, and the diameters of the distribution holes between different columns gradually increase along the axial direction of the distribution shaft.

[0008] Further preferably, the screw module includes a mounting frame, and a screw motor and a transmission screw arranged on the mounting frame; the mounting frame is fixedly installed on the frame, the output end of the screw motor is connected to the transmission screw, a slider is provided on the transmission screw, and the slider is fixedly connected to the bracket.

[0009] As a preferred embodiment of the present invention, the feeding device includes a silo, a loading turntable, a confluence trough and a feeding motor; the silo and the feeding motor are installed on a frame, the loading turntable is installed on the silo and is connected to the accommodating cavity of the silo, an outer gear ring is provided on the outer periphery of the loading turntable, a driving gear is connected to the output shaft of the feeding motor, and the driving gear is meshed with the outer gear ring; the confluence trough is installed obliquely in the accommodating cavity of the silo and extends into the loading turntable, for receiving the material freely falling in the loading turntable and transporting it to the discharge port.

[0010] As a preferred embodiment of the present invention, a material removal brush and a material removal motor are also installed in the accommodating cavity of the silo; the material removal brush is rotatably arranged above the confluence trough to clean debris on the surface of the confluence trough, and the material removal motor drives the material removal brush to swing left and right through a connecting rod.

[0011] As a preferred embodiment of the present invention, the shifting device includes a mounting disc, a shifting turntable and a shifting motor; the mounting disc and the shifting motor are respectively fixed on the frame, and the mounting disc is provided with an avoidance groove and a discharge hole for materials to pass through; the output shaft of the shifting motor passes through the mounting disc and is connected to the shifting turntable, for driving the shifting turntable to rotate in a circle; the shifting turntable is provided with a plurality of penetrating accommodating holes.

[0012] As a preferred embodiment of the present invention, the weighing device includes a weighing sensor and a weighing platform; the weighing sensor is arranged on the frame, and the weighing platform is installed on the weighing sensor and is located in the avoidance groove and flush with the upper surface of the mounting disc.

[0013] As a preferred embodiment of the present invention, the material receiving device includes a material receiving motor, a guide trough and several material receiving barrels; the material receiving motor is arranged on a frame, a connecting frame is installed on the output shaft of the material receiving motor, the guide trough is installed on the connecting frame and the inlet of the guide trough is arranged corresponding to the discharge hole of the mounting disc; the material receiving barrel is installed on the frame and is distributed circumferentially below the outlet of the guide trough with the output shaft of the material receiving motor as the center.

[0014] As a preferred embodiment of the present invention, the present invention also includes a PLC controller, a first slot-type photoelectric switch, a second slot-type photoelectric switch, a first proximity sensor and a second proximity sensor; the first slot-type photoelectric switch and the second slot-type photoelectric switch are arranged on the material dividing device; the first proximity sensor is arranged on the shifting device, and the second proximity sensor is arranged on the material receiving device; the PLC controller is respectively connected to the weighing sensor, the first slot-type photoelectric switch, the second slot-type photoelectric switch, the first proximity sensor and the second proximity sensor signals.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The ball weight checking machine has the advantages that the single ball can orderly enter the displacement device according to the single ball in the row of balls in the feeding device, and the ball is moved to the weighing device to automatically check the weight, and then is moved to the material collecting device to be classified and collected according to the weight of the ball, so that the automatic weight checking and classification are realized with low artificial participation, good convenience and high weight checking efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a three-dimensional mechanism schematic view of the ball weight checking machine;

[0018] Figure 2 It is a structure schematic view of the ball weight checking machine without a machine shell;

[0019] Figure 3 It is another angle structure schematic view of the ball weight checking machine without a machine shell;

[0020] Figure 4 It is a structure schematic view of the feeding device;

[0021] Figure 5 It is a structure schematic view of the collecting groove;

[0022] Figure 6 It is a structure schematic view of the material distributing device;

[0023] Figure 7 It is a structure schematic view of the material distributing shaft;

[0024] Figure 8 It is a structure schematic view of the displacement device, the weighing device and the material collecting device;

[0025] Figure 9 It is a structure schematic view of the ball weight checking machine Figure 8 without the displacement turntable;

[0026] Explanation of the reference numerals: 1. Frame; 2. Feeding device; 21. Bin; 22. Loading turntable; 23. Converging trough; 24. Feeding motor; 3. Distributing device; 31. Distributing shaft; 311. Distributing hole; 32. Stop block; 321. Through hole; 33. Bracket; 34. Rotating motor; 35. Mounting frame; 36. Screw motor; 4. Shifting device; 41. Mounting disc; 411. Unloading hole; 42. Shifting turntable; 43 , shift motor; 5. Weighing device; 51. Weighing sensor; 52. Weighing platform; 6. Material receiving device; 61. Material receiving motor; 62. Guide trough; 63. Material receiving cylinder; 64. Connecting frame; 7. Material removal device; 71. Material removal brush; 72. Material removal motor; 73. Connecting rod; 8. PLC controller; 9. First slot-type photoelectric switch; 10. Second slot-type photoelectric switch; 11. First proximity sensor; 12. Second proximity sensor. DETAILED DESCRIPTION

[0027] The present invention will be described in further detail below with reference to the accompanying drawings and specific implementation methods.

[0028] like Figures 1 to 3The utility model discloses a ball weight checking machine, which comprises a rack 1 for mounting other components, a machine shell mounted on the outer periphery of the rack 1. The rack 1 is sequentially provided with a feeding device 2, a distributing device 3, a shifting device 4, a weighing device 5 and a collecting device 6 in the direction of feeding and discharging, and a PLC controller 8 is further arranged on the rack 1, which is used to control the working state of the above devices. Specifically, the discharge port of the feeding device 2 is communicated with the feeding port of the distributing device 3 to arrange the material and provide the ball to be weighed to the distributing device 3. The distributing device 3 comprises a distributing shaft 31 and a blocking block 32 sleeved on the distributing shaft 31, wherein the distributing shaft 31 is in the shape of a hollow cylinder, and a plurality of distributing holes 311 are uniformly arranged on the side wall of the distributing shaft 31 along the circumferential direction, and the distributing holes 311 are correspondingly arranged with the discharge port of the feeding device 2. The bottom of the blocking block 32 is provided with a through hole 321, and the through hole 321 is located directly below the distributing shaft 31. The distributing shaft 31 is rotatably installed on the rack 1, so that the distributing hole 311 can be communicated with the discharge port of the feeding device 2 or the through hole 321 of the blocking block 32. When the distributing hole 311 is communicated with the discharge port of the feeding device 2 and the communication area is maximum, the ball falls into the distributing shaft 31 through the discharge port of the feeding device 2 and the distributing hole 311. Since the distributing shaft 31 continuously rotates, the communication area between the distributing hole 311 and the discharge port of the feeding device 2 gradually decreases, so that only one ball falls into the distributing shaft 31 when communicated. When the distributing shaft 31 continuously rotates and one of the distributing holes 311 is communicated with the through hole 321, the ball in the distributing shaft 31 falls into the shifting device through the through hole 321 by free fall. It can be seen that the distributing device of the utility model can ensure that the ball in the feeding device 2 enters the distributing shaft 31 as a single ball, so as to facilitate the automatic weighing of the single ball. The shifting device 4 is rotatably arranged below the blocking block 32, which can receive the ball material falling from the through hole 321 and sequentially convey it to the weighing device 5 and the collecting device 6, so as to facilitate the weighing and collecting processes. The weighing device 5 is arranged below the shifting device 4 and can detect the weight of the contained material in the weighing device 5, thereby realizing automatic weighing. The collecting device 6 is arranged below the shifting device 4 and located in front of the weighing device 5, which is used to classify and store the material falling from the shifting device 4. The utility model realizes efficient automatic weighing and classification with low labor participation, good convenience and high weighing efficiency.

[0029] As Figure 4As shown, specifically, the feeding device 2 includes a silo 21, a loading turntable 22, a confluence trough 23 and a feeding motor 24. The silo 21 is used to accommodate the heavy spherical materials to be inspected. The loading turntable 22 lifts the materials into the confluence trough 23 under the drive of the feeding motor 24, wherein the silo 21 and the feeding motor 24 are respectively mounted on the frame 1, and the loading turntable 22 is mounted on the silo 21 and is connected to the accommodating cavity of the silo 21. An outer gear ring is sleeved on the outer periphery of the loading turntable 22, and a driving gear is connected to the output shaft of the feeding motor 24. The driving gear is engaged with the outer gear ring, and the loading turntable 22 rotates under the drive of the feeding motor 24 to lift the materials. The confluence trough 23 is obliquely installed in the accommodating cavity of the silo 21 and extends into the loading turntable 22, for receiving the freely falling materials in the loading turntable 22 and conveying them to the discharge port. Preferably, as Figure 5 As shown, the cross-section of the confluence trough 23 is V-shaped, so that the balls can form an orderly queue after falling into the confluence trough 23. Further preferably, the width of the end of the confluence trough 23 extending into the loading turntable 22 is greater than the radius of the loading turntable 22 and smaller than the diameter of the loading turntable 22, so that as many balls as possible lifted by the loading turntable 22 can fall into the confluence trough 23. The width of the other end of the confluence trough 23 located in the silo 21 is equal to the maximum diameter of the distribution hole 311 of the distribution shaft 31, so as to ensure that the balls in the confluence trough 23 form a single row. Further preferably, the inclination angle of the confluence trough 23 is 15° to 30°.

[0030] In order to ensure smooth feeding, Figure 4 As shown, the present invention further includes a material removal device 7 installed in the accommodating chamber of the silo 21. The material removal device 7 includes a material removal brush 71 and a material removal motor 72. The material removal brush 71 is rotatably disposed in the accommodating chamber of the silo 21 and is located above the end of the confluence trough 23 extending into the loading turntable 22. It is used to clean debris and other debris from the surface of the confluence trough 23. The material removal motor 72 is disposed in the silo 21 or in the frame 1 and is transmission-connected to the material removal brush 71 via a connecting rod 73. Driven by the material removal motor 72, the material removal brush 71 can swing left and right, so that the material removal brush 71 can sweep debris from the surface of the confluence trough 23 and prevent material blockage.

[0031] like Figure 6As shown, the distributing device 3 further comprises a lead screw module, a support 33 and a rotary motor 34. The lead screw module comprises a mounting frame 35, a lead screw motor 36 and a transmission lead screw arranged on the mounting frame 35. The mounting frame 35 is fixedly installed on the rack 1, the output end of the lead screw motor 36 is connected with the transmission lead screw, a sliding block is sleeved on the transmission lead screw, and the sliding block is fixedly connected with the support 33. The distributing shaft 31 and the rotary motor 34 are installed on the lead screw module through the support 33, and under the driving of the lead screw module, the distributing shaft 31, the rotary motor 34 and the support 33 can linearly reciprocate along the axial direction of the transmission lead screw. The output shaft of the rotary motor 34 is connected with the distributing shaft 31, and under the driving of the rotary motor 34, the distributing shaft 31 can rotate along the axial direction thereof. Further preferably, as shown in the accompanying drawings, Figure 7 As shown, the distributing holes 311 are arranged in the circumferential direction of the distributing shaft 31, the circumferential direction of the distributing shaft 31 is taken as a column, there are multiple columns of distributing holes 311 along the axial direction of the distributing shaft 31, the diameters of the distributing holes 311 in the same column are the same, and the diameters of the distributing holes 311 between different columns gradually increase along the axial direction of the distributing shaft 31. By arranging multiple columns of distributing holes 311 with different diameters on the distributing shaft 31, the present application can align the distributing holes 311 with different diameters with the feeding port of the feeding device 2 and the through hole 321 of the blocking block 32 under the driving of the lead screw module, so as to realize automatic change operation for different diameter spheres, and further improve the applicability of the sphere weighing machine. Further preferably, the number of the distributing holes 311 in each column on the distributing shaft 31 is four, and the four distributing holes 311 are uniformly distributed in the circumferential direction of the distributing shaft 31, so as to ensure that the distributing shaft 31 only feeds one sphere when rotating 1 / 4 circle.

[0032] As shown, Figures 8 and 9As shown, the shifting device 4 comprises a mounting disc 41, a shifting turntable 42, and a shifting motor 43 for driving the shifting turntable 42 to rotate. The mounting disc 41 and the shifting motor 43 are fixedly arranged on the rack 1 respectively, and the shifting motor 43 is located below the mounting disc 41. A mounting hole is formed at the central shaft of the mounting disc 41, and an avoiding groove and a discharging hole 411 for the material to pass through are formed on the mounting disc 41 away from the central shaft, and the included angle between the avoiding groove and the discharging hole 411 is 90°. The output shaft of the shifting motor 43 is connected with the shifting turntable 42 through the mounting hole of the mounting disc 41, for driving the shifting turntable 42 to rotate circumferentially. The shifting turntable 42 is provided with a plurality of through accommodating holes, which are used for accommodating the spherical material falling from the material distributing device 3; further preferably, the shifting turntable 42 is in a cross-shaped structure, and each end of the cross-shaped structure is provided with an accommodating hole. The shifting turntable 42 in the cross-shaped structure can make the feeding, weighing, and collecting processes work at different positions simultaneously under the driving of the shifting motor 43, which not only improves the weighing efficiency, but also facilitates the subsequent maintenance. Further preferably, the diameter of the accommodating hole on the shifting turntable 42 is greater than the maximum diameter of the distributing hole 311 of the distributing shaft 31, so as to ensure accurate weighing.

[0033] As shown in Figures 8 and 9 The weighing device 5 comprises a weighing sensor 51 and a weighing platform 52. The weighing sensor 51 is arranged on the rack 1 and located below the mounting disc 41, and the weighing platform 52 is arranged in the avoiding groove and mounted on the weighing sensor 51. The weighing platform 52 is flush with the upper surface of the mounting disc 41. When the shifting device 4 moves the spherical body onto the weighing platform 52, the weighing platform 52 automatically weighs the spherical body, and the weighing sensor 51 obtains the weighing result.

[0034] As shown in Figures 8 and 9 The collecting device 6 comprises a collecting motor 61, a flow guide groove 62, and a plurality of collecting barrels 63. The collecting motor 61 is arranged on the rack 1, and a connecting frame 64 is mounted on the output shaft of the collecting motor 61, and the connecting frame 64 is located below the mounting disc 41. The flow guide groove 62 is mounted on the connecting frame 64, and the inlet of the flow guide groove 62 is correspondingly arranged with the discharging hole 411 of the mounting disc 41. The shifting device 4 moves the weighed spherical body to the discharging hole 411, and the spherical body falls into the corresponding collecting barrel 63 through the flow guide groove 62 by free fall; the collecting barrels 63 are mounted on the rack 1 and are distributed circumferentially around the output shaft of the collecting motor 61 below the outlet of the flow guide groove 62.

[0035] The present invention also includes a first slot-shaped photoelectric switch 9, a second slot-shaped photoelectric switch 10, a first proximity sensor 11, and a second proximity sensor 12. The first slot-shaped photoelectric switch 9 is mounted on the mounting bracket 35 of the material dispensing device 3 to detect the position of the bracket 33; the second slot-shaped photoelectric switch 10 is mounted on the bracket 33 to detect the rotational travel of the material dispensing shaft 31. The first proximity sensor 11 is mounted on the frame 1 and located on one side of the shifting turntable 42 to detect whether a sphere is contained within the receiving hole of the shifting turntable 42; the second proximity sensor 12 is mounted on the material receiving device 6 to detect the rotational travel of the guide groove 62. The PLC controller 8 is signal-connected to the weighing sensor 51, the first slot-shaped photoelectric switch 9, the second slot-shaped photoelectric switch 10, the first proximity sensor 11, and the second proximity sensor 12. The PLC controller 8 is electrically connected to the feeding motor 24, the material removal motor 72, the rotation motor 34, the shifting motor 43, and the material receiving motor 61 to control their operation.

[0036] The working process of the present invention is as follows: After the spherical material stored in the hopper 21 is lifted to a high position by the loading turntable 22 driven by the feeding motor 24, it freely falls into the confluence trough 23. Due to the inclined setting of the confluence trough 23, the spheres in the confluence trough 23 roll into the distribution shaft 31 by their own weight. At the same time, the removal motor 72 drives the removal brush 71 to brush away excess spheres and debris on the confluence trough 23 to prevent material blockage. The distribution shaft 31 rotates under the drive of the rotating motor 34. When the distribution hole 311 is aligned with the discharge hole of the feeding device 2, the spheres in the confluence trough 23 roll into the distribution shaft 31 by their own weight. By controlling the speed of the rotating motor 34, it is ensured that only one sphere is introduced into the distribution shaft 31 for every 1 / 4 turn of the distribution shaft 31. The distribution shaft 31 continues to rotate. When the distribution hole 311 is aligned with the through hole 321 of the blocking block 32, the sphere falls into the receiving hole of the shifting turntable 42. Driven by the shift motor 43, the shift turntable 42 rotates 1 / 4 turn, transferring the spheres to the weighing platform 52 for weighing. The weighing sensor 51 obtains the sphere weight data and transmits it to the PLC controller 8. The PLC controller 8 classifies and determines the total amount of spheres. After the determination is completed, the guide groove 62 is driven by the receiving motor 61 to rotate above the receiving barrel 63 of the corresponding weight. The shift motor 43 drives the shift turntable 42 to rotate 1 / 4 turn, so that the spheres move above the receiving device 6. Under the action of their own weight, the spheres roll through the guide groove 62 into the corresponding receiving barrel 63, thereby completing the automatic weight check and classification of the spheres. When it is necessary to detect spheres of different diameters, the screw motor 36 drives the slider to move linearly along the axial direction of the transmission screw, so that the distribution hole 311 on the distribution shaft 31 corresponding to the diameter of the spheres is aligned with the discharge port of the feeding device 2, and the automatic type change operation can be completed.

[0037] In summary, the present invention provides a material distribution shaft 31, so that the rows of balls in the feeding device 2 are orderly fed into the shifting device 4 as individual balls, and are first moved to the weighing device 5 by the shifting device 4 for automatic weight checking, and then moved to the receiving device 6 for classification and collection according to the weight of the balls. This achieves efficient automatic weight checking and classification, with low manual participation and no problems of errors caused by fatigue. It is convenient, has high weight checking efficiency, and good operation continuity. The present invention is suitable for the weight checking of various balls or spherical objects, and is particularly suitable for the weight checking of Buddhist beads.

[0038] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A ball weighing machine, characterized by: The invention comprises a frame and a feeding device, a distributing device, a shifting device, a weighing device and a receiving device arranged on the frame; the discharge port of the feeding device is connected with the feed port of the distributing device; the distributing device comprises a distributing shaft and a blocking block, the distributing shaft is in the shape of a hollow cylinder, and a plurality of distributing holes corresponding to the discharge port of the feeding device are evenly distributed on the distributing shaft along its circumference; a through hole is provided at the bottom of the blocking block, the blocking block is sleeved on the distributing shaft, and the through hole is located below the distributing hole; the distributing shaft can be rotatably mounted on the frame so that the distributing shaft The hole can be connected with the discharge port or the through hole. When the distribution hole is connected with the discharge port, one and only one ball falls into the distribution shaft. When the distribution hole is connected with the through hole, the ball in the distribution shaft falls into the through hole. The shifting device is arranged below the blocking block, and can receive the material falling from the through hole and transport it to the weighing device or the receiving device. The weighing device is arranged below the shifting device and can detect the weight of the content in the weighing device. The receiving device is arranged below the shifting device, and is used to classify and receive the material falling from the shifting device.

2. The ball checkweighing machine according to claim 1, characterized in that: The material distribution device also includes a screw module, a bracket and a rotating motor; the material distribution shaft and the rotating motor are installed on the screw module through the bracket, and the output shaft of the rotating motor is connected to the material distribution shaft to drive the material distribution shaft to rotate along its axial direction; the screw module is installed on the frame to drive the material distribution shaft to perform linear reciprocating motion along its axial direction.

3. The ball check weighing machine according to claim 1 or 2, characterized in that: The distribution holes are arranged in a circumferential array along the distribution shaft, with the circumferential direction of the distribution shaft as a column, and there are multiple columns of distribution holes along the axial direction of the distribution shaft. The diameters of the distribution holes in the same column are the same, and the diameters of the distribution holes between different columns gradually increase along the axial direction of the distribution shaft.

4. The ball check weighing machine according to claim 2, characterized in that: The screw module includes a mounting frame, and a screw motor and a transmission screw arranged on the mounting frame; the mounting frame is fixedly installed on the frame, the output end of the screw motor is connected to the transmission screw, a slider is sleeved on the transmission screw, and the slider is fixedly connected to the bracket.

5. The ball check weighing machine according to claim 1, characterized in that: The feeding device includes a silo, a loading turntable, a confluence trough and a feeding motor; the silo and the feeding motor are installed on a frame, the loading turntable is installed on the silo and is connected to the accommodating chamber of the silo, an outer gear ring is provided on the outer periphery of the loading turntable, a driving gear is connected to the output shaft of the feeding motor, and the driving gear is meshed with the outer gear ring; the confluence trough is installed obliquely in the accommodating chamber of the silo and extends into the loading turntable, for receiving the material freely falling in the loading turntable and transporting it to the discharge port.

6. The ball check weighing machine according to claim 5, characterized in that: A material removal brush and a material removal motor are also installed in the accommodating cavity of the silo; the material removal brush is rotatably arranged above the confluence trough to clean debris on the surface of the confluence trough, and the material removal motor drives the material removal brush to swing left and right through a connecting rod.

7. The ball check weighing machine according to claim 1, characterized in that: The shifting device includes a mounting disc, a shifting turntable and a shifting motor; the mounting disc and the shifting motor are respectively fixed on the frame, and the mounting disc is provided with an avoidance groove and a discharge hole for materials to pass through; the output shaft of the shifting motor passes through the mounting disc and is connected to the shifting turntable, so as to drive the shifting turntable to rotate in a circle; the shifting turntable is provided with a plurality of penetrating accommodating holes.

8. The ball check weighing machine according to claim 7, characterized in that: The weighing device includes a weighing sensor and a weighing platform; the weighing sensor is arranged on the frame, and the weighing platform is installed on the weighing sensor and is located in the avoidance groove and is flush with the upper surface of the installation disc.

9. The ball check weighing machine according to claim 7, characterized in that: The material receiving device includes a material receiving motor, a guide trough and several material receiving barrels; the material receiving motor is arranged on a frame, a connecting frame is installed on the output shaft of the material receiving motor, the guide trough is installed on the connecting frame and the inlet of the guide trough is arranged corresponding to the discharge hole of the mounting disc; the material receiving barrel is installed on the frame and is distributed circumferentially below the outlet of the guide trough with the output shaft of the material receiving motor as the center.

10. The ball check weighing machine according to claim 8, characterized in that: It also includes a PLC controller, a first slot-type photoelectric switch, a second slot-type photoelectric switch, a first proximity sensor and a second proximity sensor; the first slot-type photoelectric switch and the second slot-type photoelectric switch are arranged on the material dividing device; the first proximity sensor is arranged on the shifting device, and the second proximity sensor is arranged on the material receiving device; the PLC controller is respectively connected to the weighing sensor, the first slot-type photoelectric switch, the second slot-type photoelectric switch, the first proximity sensor and the second proximity sensor signals.