Quantitative feeding device

Abstract

The utility model relates to a quantitative feeding device which comprises a sample receiving funnel, a material distributing bin, a sample correcting material cup and an overturning air cylinder, wherein the sample receiving funnel is arranged above the material distribution bin, and an outlet in the lower end of the sample receiving funnel is communicated with the interior of the material distribution bin; the overturning air cylinder is arranged on the material flow dividing bin, and a piston rod of the overturning air cylinder penetrates through the bin wall of the material flow dividing bin and extends into an inner cavity of the material flow dividing bin. The normal sample cup is arranged in the material distribution bin and is fixedly connected to the end part of a piston rod of the overturning cylinder; and a discharge hole is formed in the bottom of the material shunting bin. When the quantitative feeding device is used, the supplied material does not need to be dichotomized and weighed in advance, the rinsing material and the normal sample grinding material can enter the grinding machine respectively only by feeding once, and the rinsing material can be ensured to be sufficient and the normal sample grinding material can be ensured to be within a controllable range.

Description

Technical Field

[0001] This utility model relates to the field of automated production equipment technology, and more specifically, to a quantitative feeding device. Background Technology

[0002] A grinding mill is a device that can process dry materials such as ores and mineral powders with a diameter of no more than 3 mm into particles of 80 mesh or larger. Automatic grinding mills, based on traditional grinding mills, achieve functions such as automatic feeding, automatic pre-cleaning, automatic grinding, automatic unloading, and automatic filling.

[0003] Because the risk of cross-contamination between samples needs to be carefully considered, in addition to cleaning all parts of the equipment with compressed air after each sample processing, the entire device also needs to be rinsed with the next sample to be prepared and then discarded. This process minimizes the risk of cross-contamination between different samples.

[0004] The existing technology involves first receiving a certain amount of material, then dividing it into two portions, approximately 3:7. The smaller portion is first fed into the grinding mill inlet for equipment washing. After washing and waste material purging, the other portion of the sample material is then fed into the grinding mill inlet to begin the formal sample preparation process. This method is quite cumbersome, and the accuracy of the sample quantity requires weighing to ensure precise measurement. Insufficient washing material is ineffective, and insufficient sample quantity fails to meet the requirements for sample preparation. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a quantitative feeding device, which aims to solve the problems existing in the prior art.

[0006] According to this utility model, a quantitative feeding device is provided, comprising: a sample receiving funnel, a material distribution bin, a positive sample cup, and a tilting cylinder; wherein...

[0007] The sample receiving funnel is located above the material distribution chamber, and the lower outlet of the sample receiving funnel is connected to the interior of the material distribution chamber.

[0008] The tilting cylinder is mounted on the material distribution chamber, and the piston rod of the tilting cylinder extends through the chamber wall of the material distribution chamber into the internal cavity of the material distribution chamber.

[0009] The positive sample cup is located in the material distribution chamber and is fixedly connected to the end of the piston rod of the tilting cylinder;

[0010] The bottom of the material diversion bin is provided with a discharge port.

[0011] Preferably, the top of the material distribution chamber is provided with a purge connection flange, the lower end of the purge connection flange is fixedly connected to the top opening of the material distribution chamber, and the lower outlet of the sample receiving funnel is connected to the upper inlet of the purge connection flange.

[0012] Preferably, the purge connection flange is provided with a plurality of air inlets, which are evenly distributed along the circumference of the purge connection flange.

[0013] Preferably, the lower outlet of the sample receiving funnel and the upper inlet of the purge connection flange are both tubular structures, and the lower outlet of the sample receiving funnel and the upper inlet of the purge connection flange are connected by a silicone hose.

[0014] Preferably, the lower part of the internal cavity of the material diversion chamber has a funnel-shaped structure.

[0015] Preferably, the positive sample cup is a cylindrical structure with an open top, and the positive sample cup is located directly below the lower outlet of the sample receiving funnel.

[0016] Preferably, a connecting sleeve is provided on the outer wall of the positive sample cup, and the end of the piston rod of the flipping cylinder is detachably connected to the connecting sleeve.

[0017] Preferably, the connecting sleeve is provided with a threaded hole that penetrates the wall of the connecting sleeve, and a set screw is screwed into the threaded hole. The end of the piston rod of the tilting cylinder is inserted laterally into the connecting sleeve and locked and fixed to the connecting sleeve by the set screw.

[0018] Preferably, a discharge pipe is provided at the bottom of the material diversion chamber, and the discharge pipe is connected to the internal cavity of the material diversion chamber through the discharge port at the bottom of the material diversion chamber.

[0019] Preferably, the upper end of the discharge pipe is provided with a flange plate, which is fixedly connected to the bottom of the material diversion chamber by a plurality of screws.

[0020] The quantitative feeding device provided by this utility model features a material distribution chamber and a sample cup connected to it via a tilting cylinder. Material fed into the material distribution chamber from the sample funnel first fills the sample cup with the material needed for sample preparation. The remaining material overflows from the sample cup and flows into the grinder through the outlet at the bottom of the material distribution chamber to complete the equipment washing process. Then, the tilting cylinder pours the material from the sample cup into the grinder for sample grinding. Using this quantitative feeding device eliminates the need for pre-sorting and weighing of the incoming material; only one feeding is required to ensure that the washing material and the sample grinding material enter the grinder separately, guaranteeing sufficient washing material and keeping the sample grinding material within a controllable range. Attached Figure Description

[0021] The above and other objects, features and advantages of the present invention will become clearer from the following description of embodiments of the present invention with reference to the accompanying drawings.

[0022] Figure 1 A three-dimensional structural schematic diagram of a quantitative feeding device according to an embodiment of the present invention is shown.

[0023] Figure 2 A front view structural schematic diagram of a quantitative feeding device according to an embodiment of the present invention is shown.

[0024] Figure 3 A cross-sectional view of the internal structure of a quantitative feeding device according to an embodiment of the present invention is shown.

[0025] Figure 4 A schematic diagram of the structure of the quantitative feeding device according to an embodiment of the present invention when used in conjunction with a sample cup is shown.

[0026] In the diagram: 1. Sample receiving funnel; 11. Connecting plate; 2. Material distribution bin; 21. Internal cavity; 22. Discharge port; 3. Sample cup; 31. Connecting sleeve; 32. Set screw; 4. Tilting cylinder; 41. Piston rod; 5. Purge connecting flange; 51. Air inlet; 6. Silicone hose; 7. Discharge pipe; 71. Flange plate; 8. Sample cup; 9. Rotary clamping cylinder. Detailed Implementation

[0027] Various embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. In the various drawings, the same elements are indicated by the same or similar reference numerals. For clarity, the various parts in the drawings are not drawn to scale.

[0028] This utility model provides a quantitative feeding device, see [link]. Figures 1 to 3 The quantitative feeding device includes: a sample receiving funnel 1, a material distribution chamber 2, a positive sample cup 3, and a tilting cylinder 4; wherein, the sample receiving funnel 1 is located above the material distribution chamber 2, and the lower outlet of the sample receiving funnel 1 is connected to the interior of the material distribution chamber 2; the tilting cylinder 4 is located on the material distribution chamber 2, and the piston rod 41 of the tilting cylinder 4 passes through the chamber wall of the material distribution chamber 2 and extends into the internal cavity 21 of the material distribution chamber 2; the positive sample cup 3 is located inside the material distribution chamber 2 and is fixedly connected to the end of the piston rod 41 of the tilting cylinder 4; and the bottom of the material distribution chamber 2 is provided with a discharge port 22.

[0029] Specifically, the sample receiving funnel 1 is used to collect the input material and guide it into the material distribution chamber 2. The positive sample cup 3 in the cavity 21 of the material distribution chamber 2 can hold the positive sample grinding material used for sample preparation. The volume of the positive sample cup 3 is customized according to the required amount of positive sample grinding material. The material entering the material distribution chamber 2 through the receiving funnel falls into the positive sample cup 3. After the positive sample cup 3 is filled with positive sample grinding material to meet the sample preparation requirements, the remaining material overflows into the material distribution chamber 2 and enters the grinder through the discharge port 22 at the bottom of the material distribution chamber 2 to rinse the grinder. After the grinder is rinsed, the positive sample cup 3 is flipped by the tilting cylinder 4, so that the positive sample grinding material in the positive sample cup 3 falls into the material distribution chamber 2 and then enters the grinder through the discharge port 22 at the bottom of the material distribution chamber 2 for the formal sample preparation process.

[0030] Furthermore, the top of the material distribution chamber 2 is provided with a purge connection flange 5. The lower end of the purge connection flange 5 is fixedly connected to the top opening of the material distribution chamber 2, and the lower outlet of the sample receiving funnel 1 is connected to the upper inlet of the purge connection flange 5. The purge connection flange 5 is provided with multiple air inlets 51, which are evenly distributed along the circumference of the purge connection flange 5. By providing a purge connection flange 5 at the top of the material distribution chamber 2, air can be blown into the quantitative feeding device through a gas tank connected to the purge connection flange 5, and the residual material inside the device can be cleaned by compressed air. Figure 3 As shown, the lower end of the purge connection flange 5 is cylindrical, the upper inlet of the purge connection flange 5 is tubular, and the lower outlet of the sample funnel 1 is also tubular. The outer diameter of the lower outlet of the sample funnel 1 matches that of the upper inlet of the purge connection flange 5. The lower outlet of the sample funnel 1 and the upper inlet of the purge connection flange 5 are connected by a silicone hose 6. In this embodiment, four air inlets 51 are evenly distributed circumferentially on the purge connection flange 5. The four air inlets 51 can be connected to an air tank through an air pipe, and compressed air is used to purge the interior of the device in all directions.

[0031] Furthermore, a connecting plate 11 is provided at the upper end of the sample receiving funnel 1. The connecting plate 11 has multiple bolt holes and can be used to fix the sample receiving funnel 1 to the top housing of the grinding machine by bolts. In actual use, a dust cover is also provided above the sample receiving funnel 1. When the inside of the device is cleaned by blowing air through the blowing connection flange 5, the dust cover can be connected to a dust collector to collect material dust particles, preventing dust from overflowing from the upper opening of the sample receiving funnel 1 and polluting the surrounding environment.

[0032] Preferably, the lower part of the internal cavity 21 of the material diversion chamber 2 has a funnel-shaped structure. For example... Figure 3As shown, the funnel-shaped structure at the bottom of the internal cavity 21 of the material diversion chamber 2 can provide a downward inclined feeding surface for the falling material. Under the action of gravity, the material can slide along the feeding inclined surface to the discharge port 22 at the bottom of the material diversion chamber 2 and flow out of the material diversion chamber 2, avoiding the accumulation and residue of material in the material diversion chamber 2.

[0033] Furthermore, a discharge pipe 7 is also provided at the bottom of the material diversion chamber 2. The discharge pipe 7 is connected to the internal cavity 21 of the material diversion chamber 2 via the discharge port 22 at the bottom of the material diversion chamber 2. By providing the discharge pipe 7, the material flowing out of the material diversion chamber 2 can be guided and more easily flow into the grinder. In this embodiment, a flange plate 71 is provided at the upper end of the discharge pipe 7, and the flange plate 71 is fixedly connected to the bottom of the material diversion chamber 2 by multiple screws.

[0034] Furthermore, the sample cup 3 is a cylindrical structure with an open top, and it is located directly below the lower outlet of the sample receiving funnel 1. The location of the sample cup 3 directly below the lower outlet of the sample receiving funnel 1 allows for easier and faster collection of the sample grinding material. After collecting the sample grinding material, the material overflowing from the sample cup 3 serves as washing material, falling into the bottom of the material distribution chamber 2 and entering the grinder through the discharge port 22 to wash the grinder.

[0035] Furthermore, a connecting sleeve 31 is provided on the outer wall of the positive sample cup 3, and the end of the piston rod 41 of the tilting cylinder 4 is detachably connected to the connecting sleeve 31. Specifically, in this embodiment, the connecting sleeve 31 is provided with a threaded hole penetrating the wall of the connecting sleeve 31, and a set screw 32 is screwed into the threaded hole. The end of the piston rod 41 of the tilting cylinder 4 is inserted laterally into the connecting sleeve 31 and locked and fixed to the connecting sleeve 31 by the set screw 32. This arrangement allows for easy disassembly of the positive sample cup 3 to facilitate replacement with positive sample cups 3 of different volumes to meet different sample preparation requirements.

[0036] See Figure 4In use, this quantitative feeding device can be used in conjunction with a sample cup 8 held in place by a rotary clamping cylinder 9. The rotary clamping cylinder 9 can be mounted on a robotic arm for easy material transfer. The sample cup 8 is used to hold the materials required for rinsing and sample preparation. The specific implementation process is as follows: In the previous step, the sample material is crushed to a certain particle size and loaded into the sample cup 8, ensuring that the amount of material in the sample cup 8 is sufficient for rinsing in the grinder and grinding of the sample. The rotary clamping cylinder 9 grips the cup and moves it above the sample receiving funnel 1. The clamping head of the rotary clamping cylinder 9 flips, causing the sample cup 8 to face downwards, and all the material in the sample cup 8 falls into the sample receiving funnel 1. After the material in the sample receiving funnel 1 enters the material distribution chamber 2 through the purge connection flange 5, it first falls into the positive sample cup 3. Once the positive sample cup 3 is full, the material naturally overflows into the lower part of the internal cavity 21 of the material distribution chamber 2, and is discharged through the outlet 22 at the bottom of the material distribution chamber 2, entering the mortar of the grinder for cleaning. The grinder automatically unloads and purges the material. After cleaning, the piston rod 41 of the tilting cylinder 4 connected to the positive sample cup 3 rotates 180°, pouring the material out of the positive sample cup 3 and into the mortar of the grinder through the outlet 22 at the bottom of the material distribution chamber 2, where the grinder grinds the positive sample. After grinding, the air tank connected to the purge connection flange 5 blows compressed air into the quantitative feeding device, working in conjunction with the dust collector hood above the sample receiving funnel 1 to clean the material distribution chamber 2 and the upper and lower connecting parts of any remaining material. The above process is repeated for the preparation of the next sample.

[0037] When using the quantitative feeding device provided by this utility model to feed materials into the grinding mill for sample preparation, there is no need to separate and weigh the incoming materials in advance. Only one feeding is required to ensure that the washing material and the sample grinding material enter the grinding mill separately, and to ensure that the washing material is sufficient and the sample grinding material is within a controllable range.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0039] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A dosing device, characterized in that The utility model relates to a material distribution device for a sample preparation system, comprising: a sample receiving funnel, a material distribution bin, a positive sample cup and a turnover cylinder, wherein the sample receiving funnel is arranged above the material distribution bin, and the lower end outlet of the sample receiving funnel is in communication with the interior of the material distribution bin; the turnover cylinder is arranged on the material distribution bin, and the piston rod of the turnover cylinder extends into the interior cavity of the material distribution bin through the bin wall of the material distribution bin; the positive sample cup is arranged in the material distribution bin and is fixed to the end of the piston rod of the turnover cylinder; the bottom of the material distribution bin is provided with a discharge port.

2. The dosing device according to claim 1, characterized in that the top of the material distribution bin is provided with a purge connecting flange, the lower end of the purge connecting flange is fixedly connected to the top opening of the material distribution bin, and the lower end outlet of the sample receiving funnel is in communication with the upper end inlet of the purge connecting flange.

3. The dosing device according to claim 2, characterized in that a plurality of air inlet nozzles are arranged on the purge connecting flange and are uniformly distributed along the circumference of the purge connecting flange.

4. The dosing device of claim 2, wherein the lower end outlet of the sample receiving funnel and the upper end inlet of the purge connecting flange are both tubular structures, and the lower end outlet of the sample receiving funnel is connected to the upper end inlet of the purge connecting flange through a silica gel hose.

5. The dosing device of claim 1, wherein the lower part of the interior cavity of the material distribution bin is in the form of a funnel.

6. The dosing device of claim 1, wherein the positive sample cup is in the form of a cylinder with an open top, and is located directly below the lower end outlet of the sample receiving funnel.

7. The dosing device of claim 1, wherein a connecting sleeve is arranged on the outer wall of the positive sample cup, and the end of the piston rod of the turnover cylinder is detachably connected to the connecting sleeve.

8. The dosing device according to claim 7, characterized in that a threaded hole penetrating through the sleeve wall is arranged on the connecting sleeve, a clamping screw is screwed into the threaded hole, the end of the piston rod of the turnover cylinder is transversely inserted into the connecting sleeve, and the connecting sleeve is locked and fixed by the clamping screw.

9. The dosing device of claim 1, wherein a discharge pipe is arranged at the bottom of the material distribution bin, and the discharge pipe is in communication with the interior cavity of the material distribution bin through the discharge port at the bottom of the material distribution bin.

10. The dosing device according to claim 9, characterized in that a flange plate is arranged at the upper end of the discharge pipe, and the flange plate is fixedly connected to the bottom of the material distribution bin by a plurality of screws.

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