Sample dropping device

Abstract

The utility model discloses a kind of sample falling devices, including supporting mechanism, sample falling mechanism, push sample mechanism and sample inlet mechanism, sample falling mechanism includes the baffle ring disc fixed on supporting mechanism, sample falling disc is coaxially arranged with baffle ring disc and rotatably installed on baffle ring disc, and drive assembly for controlling sample falling disc rotation along circumference is installed on supporting mechanism, the end face of sample falling disc is spaced apart and is equipped with several toothed plates along circumference, and the baffle ring disc between adjacent two toothed plates forms the sample falling groove for accommodating sample ball;Push sample mechanism includes sample receiving assembly for receiving sample ball and being arranged on the outer circumferential side of baffle ring disc, and push sample assembly is installed on baffle ring disc and is used to push sample ball in sample falling groove along the radial direction of baffle ring disc and enter sample receiving assembly;Sample inlet mechanism is installed on baffle ring disc and is used to correspond to be arranged above sample falling groove to transmit sample ball into sample falling groove.The device can control the drop of sample ball, sample falling disc can be positioned and sample is sent, and efficiency is high, and sample ball will not be damaged by friction.

Description

Technical Field

[0001] This utility model relates to the field of sample dropping machinery technology, and in particular, to a sample dropping device. Background Technology

[0002] With the development of industrial automation, sample dropping devices are used in many machines and related mechanical structures in fields such as product packaging and sorting inspection.

[0003] The existing rotating sample dropping device consists of a sample tray, a tray, and a sample receiving mechanism. The tray has a drop hole, and the sample tray has a ring of receiving holes around its circumference. The sample is placed in the receiving holes. The sample tray can rotate around its center. When the receiving hole on the sample tray is aligned with the drop hole on the tray, a sample falls into the sample receiving mechanism. For example, Chinese Patent CN102636659A discloses an automatic sample feeding device, including a sample tray, a sample plate, a sample inlet connector, a sample drop shaft, a sample delivery chamber, a purge air port, an oxygen inlet channel, a sample drop channel, a conveying slide, a sample outlet channel, and a sample receiving funnel. The sample drop plate is installed on the sample tray. The sample drop channel is located in the upper vertical direction of the sample delivery chamber. The sample delivery chamber is equipped with a sample drop shaft, and a sample receiving funnel is provided on the sample drop shaft. The sample receiving funnel can rotate freely around the center of the sample drop shaft. The height of the sample receiving funnel is the radius of the sample drop shaft. A purge air port is opened at the conical top of the sample receiving funnel. The sample delivery chamber and the sample inlet connector are connected by a conveying slide. An oxygen inlet channel is opened in the horizontal direction on the left side of the sample inlet connector, and a sample outlet channel is opened in the vertical direction at the lower part of the sample inlet connector. This device can achieve continuous automatic sample feeding, but the sample tray can only rotate sequentially hole by hole; otherwise, all sample balls will fall out. Therefore, the sample tube can only be moved to position the sample balls and deliver them to different sample holes on the sample tray, which is inconvenient to operate and affects the sample delivery efficiency. Moreover, the sample balls will contact the sample tray below in the sample tray. When the sample tray rotates, the sample balls will rub against the surface of the sample tray, causing the sample balls to break. Utility Model Content

[0004] This invention provides a sample dropping device to solve the technical problems of low sample delivery efficiency and easy friction damage to sample balls in existing sample dropping devices.

[0005] According to one aspect of the present invention, a sample dropping device is provided, comprising:

[0006] Support mechanism, used for positioning support;

[0007] The sample dropping mechanism includes a retaining ring plate fixed on a support mechanism, a sample dropping plate coaxially arranged with the retaining ring plate and rotatably mounted on the retaining ring plate, and a drive component mounted on the support mechanism for controlling the sample dropping plate to rotate circumferentially. Several toothed plates are provided circumferentially on the end face of the sample dropping plate, and a sample dropping groove for accommodating the sample ball is formed between two adjacent toothed plates and the retaining ring plate.

[0008] The sample pushing mechanism includes a sample receiving assembly located on the outer periphery of the retaining ring plate for receiving the sample ball, and a sample pushing assembly installed on the retaining ring plate for pushing the sample ball in the sample dropping groove radially outward into the sample receiving assembly.

[0009] The sample feeding mechanism is mounted on the retaining ring plate and is positioned above the sample drop trough to deliver the sample ball into the trough.

[0010] Furthermore, the retaining ring disc includes an outer retaining ring for being disposed on the outer periphery of a plurality of toothed plates to form an outer ring wall of a sample drop groove, an inner retaining ring for being disposed on the inner periphery of a plurality of toothed plates to form an inner ring wall of a sample drop groove, and a positioning frame for being disposed on the inner ring of the outer retaining ring and connected to the upper end of the outer retaining ring.

[0011] The outer retaining ring is fixed to the support mechanism, and the inner retaining ring is connected to the positioning frame.

[0012] Furthermore, the positioning frame includes a positioning disc disposed on the inner ring of the inner retaining ring, and a positioning rod disposed between the outer retaining ring and the positioning disc;

[0013] The positioning rod is mounted above the toothed plate and connects the outer retaining ring, the inner retaining ring, and the positioning plate.

[0014] Furthermore, the sample dropping plate includes a sample dropping ring and a connecting frame installed on the inner wall of the sample dropping ring. Several toothed plates are arranged circumferentially on the outer ring end face of the sample dropping ring. The connecting frame is located below the positioning plate and connected to the output end of the drive assembly.

[0015] A counting ring is also provided on the inner ring end face of the sample drop ring. The counting ring is located between the connecting frame and the toothed plate and forms a ring groove between the toothed plate to accommodate the inner retaining ring and to move in a circumferential manner with the inner retaining ring. The counting ring 4 is provided with quantity indicator marks along the circumferential direction, which correspond one-to-one with the multiple sample drop grooves.

[0016] Furthermore, the pusher assembly includes a power component mounted on the retaining ring disc, an inner baffle for radially movably mounted on the outer ring wall of the inner retaining ring, and an outer baffle for radially movably mounted inside the outer retaining ring.

[0017] The output end of the power component is connected to the inner baffle and the outer baffle respectively and is used to drive the inner baffle and the outer baffle to move synchronously along the radial direction of the retaining ring disc. The width of the inner baffle and the outer baffle is adapted to the spacing between two adjacent toothed plates.

[0018] Furthermore, the outer peripheral wall of the inner retaining ring is provided with a first receiving groove for accommodating the inner baffle, and the wall surface of the outer retaining ring is provided with a second receiving groove for accommodating the outer baffle.

[0019] The first and second receiving slots are arranged radially and are used to communicate with the sample drop slot. The outer side of the second receiving slot is connected to the sample receiving assembly.

[0020] Furthermore, the sample receiving assembly includes a sample receiving channel corresponding to the second receiving groove disposed on the outer peripheral wall of the outer retaining ring, and a sample receiving hopper disposed below the sample receiving channel and communicating with the sample receiving channel;

[0021] An avoidance groove is provided on the upper end of the sample receiving channel away from the outer retaining ring. The avoidance groove is correspondingly provided with the second receiving groove and is used to receive the outer retaining plate.

[0022] Furthermore, the sample injection mechanism includes a fixed frame installed on the upper end of the retaining ring plate and a sample injection hopper correspondingly located above the sample drop groove, with the sample injection hopper connected to the fixed frame.

[0023] Furthermore, the support mechanism includes a support plate for fixing and supporting the outer retaining ring, and a support frame fixed to the lower end of the support plate;

[0024] The drive assembly is installed inside the support frame. The support plate has a connection hole, and the output end of the drive assembly extends through the connection hole to be fixed to the connection frame.

[0025] Furthermore, the end face of the sample drop ring between two adjacent toothed plates is recessed towards the center of the sample drop groove to form a concave surface for guiding and limiting the sample ball.

[0026] This utility model has the following beneficial effects:

[0027] 1. The sample dropping mechanism of this utility model has a rotatable sample dropping disk to receive the sample ball, which allows the sample ball to rotate synchronously with the sample dropping disk on the end face of the sample dropping disk, avoiding damage caused by friction between the sample ball and the surface of the sample dropping disk. By installing the sample dropping disk inside the retaining ring disk and axially setting several toothed plates on the end face of the sample dropping disk, a sample dropping groove is formed between the toothed plates and the retaining ring disk, which can position the sample ball in sequence and prevent the sample ball from falling out during the rotation of the sample dropping disk, ensuring the accuracy and stability of the sample ball placement on the sample dropping disk.

[0028] 2. The sample pushing mechanism receives samples by placing the sample receiving component on the outer periphery of the retaining ring plate. The sample pushing component radially pushes the sample balls in the sample ball groove into the sample receiving component, allowing the sample balls to be temporarily stored in different sample dropping grooves on the sample dropping plate. The forward and reverse rotation of the sample dropping plate will not change the order of the sample balls and will not cause the sample balls to fall into the sample receiving component. It can realize the control of the falling of sample balls in the designated sample ball groove. Through the coordinated cooperation of the sample pushing mechanism and the sample dropping mechanism, the sample dropping plate can be rotated to the designated position multiple times for continuous sample receiving, effectively improving work efficiency.

[0029] 3. By positioning the sample feeding mechanism on the retaining ring plate and placing it above the sample dropping groove, the sample ball can be accurately delivered into the sample dropping groove. The sample dropping plate can rotate relative to the sample feeding mechanism, so that the sample feeding mechanism can deliver the sample ball to different sample dropping grooves in a fixed position. By positioning the sample feeding mechanism at the outlet of the previous process, continuous sample reception can be achieved, saving time and effort.

[0030] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The present utility model will now be described in further detail with reference to the figures. Attached Figure Description

[0031] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0032] Figure 1 This is a schematic diagram of the sample dropping device according to a preferred embodiment of the present invention;

[0033] Figure 2 This is a cross-sectional schematic diagram of the sample dropping device according to a preferred embodiment of the present invention;

[0034] Figure 3 This is a top view of the sample dropping device according to a preferred embodiment of the present invention;

[0035] Figure 4 This is a schematic diagram of the retaining ring disc of the sample dropping device according to a preferred embodiment of the present invention;

[0036] Figure 5 This is a schematic diagram of the sample dropping plate of the sample dropping device according to a preferred embodiment of the present invention;

[0037] Figure 6 This is an enlarged view of the sample dropping groove of the sample dropping device according to a preferred embodiment of the present invention.

[0038] Legend:

[0039] 100. Support mechanism; 101. Support plate; 102. Support frame; 200. Sample dropping mechanism; 201. Retaining ring plate; 2011. Outer retaining ring; 2012. Inner retaining ring; 2013. Positioning plate; 2014. Positioning rod; 202. Sample dropping plate; 2021. Sample dropping ring; 2022. Connecting frame; 2023. Toothed plate; 2024. Counting ring; 203. Drive assembly; 300. Sample dropping groove; 400. Sample pushing mechanism; 401. Sample receiving assembly; 4011. Sample receiving channel; 4012. Sample receiving hopper; 402. Sample pushing assembly; 4021. Power component; 4022. Outer baffle; 4023. Inner baffle; 500. Sample feeding mechanism; 501. Fixing frame; 502. Sample feeding hopper; 600. First receiving groove; 700. Second receiving groove; 800. Clearance groove. Detailed Implementation

[0040] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered below.

[0041] like Figure 1 , Figure 2 , Figure 3 and Figure 6As shown, the sample dropping device in this embodiment includes a support mechanism 100, a sample dropping mechanism 200, a sample pushing mechanism 400, and a sample feeding mechanism 500. The sample feeding mechanism 500 is located above the sample dropping mechanism 200 to transfer the received sample ball into the sample dropping mechanism 200 for temporary storage. The sample pushing mechanism 400 is installed on the sample dropping mechanism 200 to push and receive the sample ball on the sample dropping mechanism 200. The sample dropping mechanism 200 is rotatably installed on the support mechanism 100 to position the temporarily stored sample ball at the sample pushing mechanism 400. Specifically, the sample dropping mechanism 200 includes a retaining ring disk 201 fixed to the support mechanism 100, a sample dropping disk 202 coaxially arranged with and rotatably mounted on the retaining ring disk 201, and a drive assembly 203 mounted on the support mechanism 100 for controlling the circumferential rotation of the sample dropping disk 202. The end face of the sample dropping disk 202 is used to support the sample ball, and a plurality of toothed plates 2023 are provided circumferentially spaced on the end face of the sample dropping disk 202. A sample dropping groove 300 for accommodating and supporting the sample ball is formed between two adjacent toothed plates 2023 and the retaining ring disk 201. Preferably, the drive assembly 203 is a motor. Therefore, the sample dropping mechanism 200, by setting a rotatable sample dropping disk 202 to receive the sample ball, allows the sample ball to rotate synchronously with the sample dropping disk 202 on the end face of the sample dropping disk 202, avoiding damage caused by friction between the sample ball and the surface of the sample dropping disk 202. By installing the sample dropping disk 202 inside the retaining ring disk 201, and setting several toothed plates 2023 axially on the end face of the sample dropping disk 202, so that a sample dropping groove 300 is formed between the toothed plates 2023 and the retaining ring disk 201, the sample ball can be positioned in sequence and prevented from falling out during the rotation of the sample dropping disk 202, ensuring the accuracy and stability of the sample ball placement on the sample dropping disk 202.

[0042] The sample pushing mechanism 400 includes a sample receiving component 401 disposed on the outer periphery of the retaining ring disk 201 for receiving the sample ball, and a sample pushing component 402 mounted on the retaining ring disk 201 for pushing the sample ball in the sample dropping groove 300 radially outward into the sample receiving component 401. Therefore, the sample pushing mechanism 400 receives samples by placing the sample receiving component 401 on the outer periphery of the retaining ring plate 201, and pushes the sample balls in the sample ball groove radially into the sample receiving component 401 through the sample pushing component 402. This allows the sample balls to be temporarily stored in different sample dropping grooves 300 on the sample dropping plate 202. The forward and reverse rotation of the sample dropping plate 202 will not change the order of the sample balls and will not cause the sample balls to fall into the sample receiving component 401. This enables control over the falling of sample balls in a designated sample ball groove. Through the coordinated cooperation of the sample pushing mechanism 400 and the sample dropping mechanism 200, the sample dropping plate 202 can be rotated to a designated position multiple times for continuous sample receiving, effectively improving work efficiency.

[0043] The sample feeding mechanism 500 is mounted on the retaining ring plate 201 and positioned above the sample drop trough 300 to deliver sample balls into the trough 300. By positioning the sample feeding mechanism 500 on the retaining ring plate 201 and positioning it above the sample drop trough 300, sample balls can be accurately delivered into the sample drop trough 300. The sample drop plate 202 can rotate relative to the sample feeding mechanism 500, allowing the sample feeding mechanism 500 to deliver sample balls to different sample drop troughs 300 from a fixed position. By positioning the sample feeding mechanism 500 at the outlet of the previous process, continuous sample reception can be achieved, saving time and effort.

[0044] like Figure 1 , Figure 3 and Figure 4 As shown, the retaining ring disc 201 includes an outer retaining ring 2011 and an inner retaining ring 2012 coaxially arranged, and a positioning frame disposed on the inner ring of the outer retaining ring 2011. Specifically, the positioning frame includes a positioning disc 2013 disposed on the inner ring of the inner retaining ring 2012 and a positioning rod 2014 disposed between the positioning disc 2013 and the outer retaining ring 2011. The inner retaining ring 2012 is disposed between the positioning disc 2013 and the outer retaining ring 2011 and fixed on the positioning rod 2014. The radial distance between the inner retaining ring 2012 and the outer retaining ring 2011 is adapted to the length of the toothed plate 2023. The outer retaining ring 2011 is fixed to the support frame 102. The sample dropping plate 202 is coaxially arranged with the retaining ring plate 201 and is rotatably disposed on the inner ring of the outer retaining ring 2011 relative to the retaining ring plate 201. The toothed plate 2023 of the sample dropping plate 202 is disposed between the outer retaining ring 2011 and the inner retaining ring 2012, so that the outer retaining ring 2011 forms the outer ring wall of the sample dropping groove 300 on the outer periphery of the toothed plate 2023, and the inner retaining ring 2012 forms the inner ring wall of the sample dropping groove 300 on the inner periphery of the toothed plate 2023. The sample dropping groove 300 forms a four-sided enclosed structure so that the sample ball is stably placed in the sample dropping groove 300. The positioning rod 2014 above the toothed plate 2023 has a groove to avoid the upper end of the toothed plate 2023 and avoid affecting the rotation of the sample dropping plate 202.

[0045] In this embodiment, preferably, the outer retaining ring 2011 is disposed on the outer peripheral wall of the sample dropping disk 202 and fixed to the support mechanism 100. The inner sidewall of the outer retaining ring 2011 is clearance-fitted with the outer peripheral wall of the toothed plate 2023, ensuring that the outer retaining ring 2011 surrounds the outer ring of the sample dropping groove 300 while also ensuring the rotation of the sample dropping disk 202 relative to the retaining ring disk 201. The inner retaining ring 2012 is disposed above the sample dropping disk 202. The bottom of the inner retaining ring 2012 is clearance-fitted with the upper end of the sample dropping disk 202, and the outer sidewall of the inner retaining ring 2012 is clearance-fitted with the inner peripheral wall of the toothed plate 2023, ensuring that the inner retaining ring 2012 surrounds the inner ring of the sample dropping groove 300 while also ensuring the rotation of the sample dropping disk 202 relative to the retaining ring disk 201. The positioning disk 2013 is disposed above the sample dropping disk 202 to avoid affecting the rotation of the sample dropping disk 202. Optionally, the bottom of the inner retaining ring 2012 can be circumferentially mounted within the sample dropping plate 202 to prevent the sample ball from coming out of the gap between the inner retaining ring 2012 and the sample dropping plate 202; the bottom of the positioning plate 2013 can also be circumferentially mounted within the sample dropping plate 202 to enhance connection stability and to guide and limit the rotation of the sample dropping plate 202, thereby improving the stability of the circumferential rotation of the sample dropping plate 202.

[0046] like Figure 1 , Figure 3 and Figure 5 As shown, the sample drop plate 202 includes a sample drop ring 2021 and a connecting frame 2022 connected to the inner wall of the sample drop ring 2021. Several toothed plates 2023 are arranged circumferentially on the outer ring end face of the sample drop ring 2021. Specifically, the sample drop ring 2021 is an annular plate with an end face. The upper end face of the sample drop ring 2021 is used to support and hold the sample ball. The outer ring end face of the sample drop ring 2021 refers to the position of the upper end face of the sample drop ring 2021 near the radial outer side. Several toothed plates 2023 are provided on the upper end face of the sample drop ring 2021 near the radial outer side and protrude from the end face of the sample drop ring 2021. Two adjacent toothed plates 2023, the inner retaining ring 2012 and the outer retaining ring 2011 can form the four side walls of the sample drop groove 300. The upper end face of the sample drop ring 2021 forms the bottom wall of the sample drop groove 300. The connecting frame 2022 is provided on the inner ring of the sample drop ring 2021 and fixed to the inner ring wall of the sample drop ring 2021. The end face of the connecting frame 2022 away from the toothed plate 2023 is connected to the output end of the drive assembly 203 so as to control the overall rotation of the sample drop disk 202 through the drive of the drive assembly 203.

[0047] like Figure 5As shown, a counting ring 2024 is circumferentially arranged on the end face of the sample dropping ring 2021 at the inner circumferential position. The counting ring 2024 has quantity indicators circumferentially arranged corresponding to each of the multiple sample dropping slots 300. The counting ring 2024 can position the order of the sample dropping slots 300 through the quantity indicators, ensuring that the placement position of the sample balls is not affected by the clockwise or counterclockwise rotation of the sample dropping disk 202. The counting ring 2024 is located between the positioning disk 2013 and the inner retaining ring 2012, facilitating external observation and allowing the sample dropping disk 202 to rotate the sample dropping slots 300 in a specific order to the designated position. An annular groove is formed between the counting ring 2024 and the toothed plate 2023 to accommodate the inner retaining ring 2012 and to allow circumferential movement with the inner retaining ring 2012.

[0048] like Figure 1 , Figure 2 and Figure 3 As shown, the pusher mechanism 400 includes a power component 4021 mounted on the retaining ring disk 201, an outer baffle 4022 connected to the output end of the power component 4021, and an inner baffle 4023 radially corresponding to and fixed on the outer baffle 4022. The inner baffle 4023 is radially movably disposed within the outer side wall of the inner retaining ring 2012, and the outer baffle 4022 is radially movably disposed within the outer retaining ring 2011. The outer baffle 4022 and the inner baffle 4023 are fixed in an inverted U-shaped structure. The output end of the power component 4021 is connected to the inner baffle 4023 and the outer baffle 4022 respectively and is used to drive the inner baffle 4023 and the outer baffle 4022 to move synchronously along the radial direction of the retaining ring disk 201. The width of the inner baffle 4023 and the outer baffle 4022 is adapted to the spacing between two adjacent toothed plates 2023. Preferably, the power component 4021 is a cylinder, with its output end positioned horizontally towards the sample receiving assembly 401. Thus, when the sample ball to be pushed is transferred to the sample receiving assembly 401 by the rotation of the sample dropping plate 202, the output end of the control cylinder extends, causing the integral piece formed by the outer baffle 4022 and the inner baffle 4023 to extend into the sample dropping groove 300 and push the sample ball, thereby pushing the sample ball from the sample dropping groove 300 into the sample receiving assembly 401. After the sample is pushed, the output end of the control cylinder retracts, causing the outer baffle 4022 to retract into the outer retaining ring 2011 and the inner baffle 4023 to retract into the outer peripheral wall of the inner retaining ring 2012, avoiding interference with the toothed plate 2023 and ensuring smooth rotation of the sample dropping plate 202 for sample transfer.

[0049] like Figure 1 and Figure 4As shown, the outer peripheral wall of the inner retaining ring 2012 has a first receiving groove 600, which is adapted to accommodate the inner baffle 4023 to avoid interference between the inner baffle 4023 and the inner periphery of the toothed plate 2023. The wall surface of the outer retaining ring 2011 has a second receiving groove 700 to accommodate the outer baffle 4022 to avoid interference between the outer baffle 4022 and the outer periphery of the toothed plate 2023, thus preventing any impact on the rotation of the sample tray 202. The first receiving groove 600 and the second receiving groove 700 are arranged radially and communicate with the sample tray 300. The outer side of the second receiving groove 700 is connected to the sample receiving assembly 401. Thus, a radially arranged sample pushing channel is formed between the first receiving groove 600, the second receiving groove 700, and the two adjacent toothed plates 2023, for the outer baffle 4022 and the inner baffle 4023 to move radially to push the sample ball in the sample dropping groove 300 into the sample receiving assembly 401. Moreover, after the sample pushing assembly 402 completes the sample pushing, the outer baffle 4022 can retract into the outer retaining ring 2011 to block the outer periphery of the toothed plate 2023, preventing the sample ball from falling out of the outer retaining ring 2011.

[0050] like Figure 1 and Figure 2 As shown, the sample receiving assembly 401 includes a sample receiving channel 4011 and a sample receiving hopper 4012 located below the sample receiving channel 4011. The sample receiving channel 4011 is located on the outer peripheral wall of the outer retaining ring 2011, corresponding to the second receiving groove 700. The sample receiving hopper 4012 is connected to the sample receiving channel 4011 to receive sample balls and transfer them to the testing equipment for experimentation. The sample receiving hopper 4012 is connected to the support mechanism 100. Specifically, the sample receiving channel 4011 includes a straight section at the upper end and an inclined section at the lower end. The height of the straight section is greater than or equal to the height of the sample drop groove 300 to ensure effective containment of the sample balls and prevent sample balls pushed into the sample receiving channel 4011 from the sample drop groove 300 from falling off the straight section.

[0051] A clearance groove 800 is provided on the upper end of the sample receiving channel 4011, away from the outer retaining ring 2011. Specifically, the clearance groove 800 is provided in the straight section of the sample receiving channel 4011, and the clearance groove 800 is correspondingly provided with the second receiving groove 700 to accommodate the outer baffle 4022. This allows the outer baffle 4022 to move freely radially in the straight section of the sample receiving channel 4011, preventing the sample receiving channel 4011 from obstructing the outer baffle 4022 and ensuring that the sample ball is smoothly pushed into the sample receiving channel 4011.

[0052] like Figure 1 , Figure 2 and Figure 3As shown, the sample feeding mechanism 500 includes a fixed frame 501 positioned above the retaining ring plate 201 and a sample feeding hopper 502 positioned above the sample drop trough 300. The fixed frame 501 is installed on the upper end of the retaining ring plate 201, and the sample feeding hopper 502 is connected to the fixed frame 501. Thus, the sample feeding hopper 502 is positioned above the sample drop trough 300 by the fixed frame 501 to accurately feed samples into the sample drop trough 300. The sample drop plate 202 can rotate relative to the sample feeding mechanism 500, allowing the sample feeding mechanism 500 to deliver sample balls to different sample drop troughs 300 from a fixed position. Continuous sample reception can be achieved by positioning the inlet end of the sample feeding hopper 502 at the outlet of the previous process, saving time and effort.

[0053] like Figure 1 and Figure 2 As shown, the support mechanism 100 is used to stably support the retaining ring disk 201 and rotatably install the sample dropping disk 202 inside the retaining ring disk 201. The support mechanism 100 includes a support plate 101 and a support frame 102 fixed to the lower end of the support plate 101. The outer retaining ring 2011 is located above the support plate 101 and fixed to the outer periphery of the support plate 101. The drive component 203 is installed inside the support frame 102. A connecting hole is provided in the support plate 101. The output end of the drive component 203 extends through the connecting hole and moves circumferentially through the connecting hole. The output end of the drive component 203 extends to the bottom of the sample dropping disk 202 and is fixed to the connecting frame 2022 to control the circumferential rotation of the sample dropping disk 202.

[0054] Preferably, the sample drop ring 2021 has an inwardly recessed end face between two adjacent toothed plates 2023 facing the center of the sample drop groove 300, forming an inwardly recessed surface. The inwardly recessed surface can guide and limit the sample ball, preventing the sample ball from contacting the surfaces of the toothed plate 2023, the inner retaining ring 2012 and the outer retaining ring 2011 in the sample drop groove 300, and further avoiding frictional damage to the sample ball.

[0055] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A sample dropping device, characterized in that, include: Support mechanism (100) for positioning support; The sample dropping mechanism (200) includes a retaining ring disk (201) fixed on the support mechanism (100), a sample dropping disk (202) coaxially arranged with the retaining ring disk (201) and rotatably mounted on the retaining ring disk (201), and a drive assembly (203) mounted on the support mechanism (100) for controlling the sample dropping disk (202) to rotate circumferentially. A plurality of toothed plates (2023) are provided circumferentially on the end face of the sample dropping disk (202), and a sample dropping groove (300) for accommodating sample balls is formed between two adjacent toothed plates (2023) and the retaining ring disk (201). The sample pushing mechanism (400) includes a sample receiving assembly (401) disposed on the outer periphery of the retaining ring disk (201) and used to receive the sample ball, and a sample pushing assembly (402) mounted on the retaining ring disk (201) and used to push the sample ball in the sample dropping groove (300) radially outward into the sample receiving assembly (401) along the retaining ring disk (201); A sample feeding mechanism (500) is mounted on the retaining ring plate (201) and is positioned above the sample drop trough (300) to deliver the sample ball into the sample drop trough (300).

2. The sample dropping device according to claim 1, characterized in that, The retaining ring disc (201) includes an outer retaining ring (2011) for being disposed on the outer periphery of a plurality of toothed plates (2023) to form the outer ring wall of the sample drop groove (300), an inner retaining ring (2012) for being disposed on the inner periphery of a plurality of toothed plates (2023) to form the inner ring wall of the sample drop groove (300), and a positioning frame for being disposed on the inner ring of the outer retaining ring (2011) and connected to the upper end of the outer retaining ring (2011); The outer retaining ring (2011) is fixed to the support mechanism (100), and the inner retaining ring (2012) is connected to the positioning frame.

3. The sample dropping device according to claim 2, characterized in that, The positioning frame includes a positioning disk (2013) disposed in the inner ring of the inner retaining ring (2012), and a positioning rod (2014) disposed between the outer retaining ring (2011) and the positioning disk (2013); The positioning rod (2014) is mounted above the toothed plate (2023) and connects the outer retaining ring (2011), the inner retaining ring (2012), and the positioning disk (2013).

4. The sample dropping device according to claim 3, characterized in that, The sample dropping plate (202) includes a sample dropping ring (2021) and a connecting frame (2022) installed on the inner wall of the sample dropping ring (2021). A plurality of toothed plates (2023) are arranged circumferentially on the outer ring end face of the sample dropping ring (2021). The connecting frame (2022) is located below the positioning plate (2013) and connected to the output end of the drive assembly (203). The inner ring end face of the sample drop ring (2021) is also provided with a counting ring (2024). The counting ring (2024) is located between the connecting frame (2022) and the toothed plate (2023) and forms an annular groove between the toothed plate (2023) for accommodating the inner retaining ring (2012) and movably engaging with the inner retaining ring (2012) in the circumferential direction. The counting ring (2024) is provided with quantity indicator marks in the circumferential direction that correspond one-to-one with the plurality of sample drop grooves (300).

5. The sample dropping device according to claim 2, characterized in that, The pusher assembly (402) includes a power component (4021) mounted on the retaining ring disc (201), an inner baffle (4023) for radially movably mounted on the outer ring wall of the inner retaining ring (2012), and an outer baffle (4022) for radially movably mounted inside the outer retaining ring (2011). The output end of the power component (4021) is connected to the inner baffle (4023) and the outer baffle (4022) respectively and is used to drive the inner baffle (4023) and the outer baffle (4022) to move synchronously along the radial direction of the retaining ring disc (201). The width of the inner baffle (4023) and the outer baffle (4022) is adapted to the spacing between two adjacent toothed plates (2023).

6. The sample dropping device according to claim 5, characterized in that, The outer peripheral wall of the inner retaining ring (2012) is provided with a first receiving groove (600) for accommodating the inner baffle (4023), and the wall of the outer retaining ring (2011) is provided with a second receiving groove (700) for accommodating the outer baffle (4022). The first receiving groove (600) and the second receiving groove (700) are arranged radially and are used to communicate with the sample dropping groove (300). The outer side of the second receiving groove (700) is connected to the sample receiving assembly (401).

7. The sample dropping device according to claim 6, characterized in that, The sample receiving assembly (401) includes a sample receiving channel (4011) disposed on the outer peripheral wall of the outer retaining ring (2011) corresponding to the second receiving groove (700), and a sample receiving hopper (4012) disposed below the sample receiving channel (4011) and communicating with the sample receiving channel (4011). An avoidance groove (800) is provided on the side of the upper end of the sample receiving channel (4011) away from the outer retaining ring (2011). The avoidance groove (800) is correspondingly provided with the second receiving groove (700) and is used to receive the outer baffle (4022).

8. The sample dropping device according to claim 1, characterized in that, The sample feeding mechanism (500) includes a fixed frame (501) installed on the upper end of the retaining ring plate (201) and a sample feeding bucket (502) correspondingly disposed above the sample drop groove (300), the sample feeding bucket (502) being connected to the fixed frame (501).

9. The sample dropping device according to claim 4, characterized in that, The support mechanism (100) includes a support plate (101) for fixing and supporting the outer retaining ring (2011), and a support frame (102) fixed to the lower end of the support plate (101); The drive assembly (203) is installed inside the support frame (102). A connection hole is provided in the support plate (101). The output end of the drive assembly (203) extends through the connection hole to be fixed to the connecting frame (2022).

10. The sample dropping device according to claim 4, characterized in that, The sample drop ring (2021) is recessed at the center of the sample drop groove (300) on the end face between two adjacent toothed plates (2023) to form a concave surface for guiding and limiting the sample ball.

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