Dividing device and combined sampling machine

Abstract

The utility model provides a division device and a combined sampling machine, relates to the technical field of sample preparation equipment, and aims to solve the problem that the division device in the prior art can only realize one-time fixed-ratio division. The groove type sample separating hopper is movably connected to the rack, a plurality of sample separating grooves are formed in the groove type sample separating hopper, the plurality of sample separating grooves are arranged in the first direction, and outlets of the plurality of sample separating grooves are respectively connected with different collecting devices; the driving mechanism is connected to the rack, and the driving mechanism is connected with the groove type sample separating hopper and can drive the groove type sample separating hopper to move in the first direction. When the division device disclosed by the utility model is used, the driving mechanism drives the groove type sample division hopper to move in the first direction, so that different sample division grooves correspond to material flowing positions, multiple division of samples is realized, division products are diversified, the samples are prepared automatically and efficiently, and the precision of the samples is qualified.

Description

Technical Field

[0001] The utility model relates to the technical field of sample preparation equipment, in particular to a reduction device and a combined sample preparation machine. Background Art

[0002] When raw materials such as coal and ore are produced and transported, samples need to be prepared for testing. The purpose is to obtain a small portion of coal samples from the coal storage or production site and to representatively reflect the properties and quality of the entire raw material batch. In the inspection process, sample reduction is one of the most important links. Coal sample reduction refers to the process of dividing the mixed coal sample into several portions of the same nature according to the prescribed method during the coal sample preparation process, leaving one portion as a coal sample for further preparation or as a laboratory coal sample, and discarding the rest.

[0003] The design of the reduction device of the common combined sample making machine is unreasonable, and the internal structure is too compact and narrow, resulting in the inability of the reduction dividing slot to completely cut the material flow, so the precision of the reduction often does not meet the standard requirements. Some combined sample making machines have a simple structure and a single function, and can usually only achieve a fixed ratio reduction once. The types of samples obtained are single and the quality is often too large, requiring manual processing twice or even three times to meet the standard requirements, and the feeding and sample collection work must be done manually, so the labor intensity is high and the efficiency is low.

[0004] The patent application document with application number 202321217054.4 discloses a reduction device for coal sampling, including a sample conveyor, a multi-tooth reduction machine, a sample detector and an aggregate funnel. The sample conveyor is a common belt conveying equipment, which includes a horizontal and longitudinally arranged conveyor belt. The multi-tooth reduction machine adopts a circulating operation and scraping form to perform random reduction. It includes a gantry bracket arranged on the upper side of the conveyor belt, a power module installed on the gantry bracket and a circulating scraper assembly. The circulating scraper assembly includes a rotatable scraper sprocket mechanism and a number of scraper movable beams installed thereon. Each scraper movable beam is provided with a number of scraper teeth. The power module is used to transmit and connect the scraper sprocket mechanism. The sample detector is arranged on the front side of the multi-tooth reduction machine and is used to detect the position status of the sample. The aggregate funnel is installed on the left or right side of the conveyor belt and is used to receive the reduced sample. The reduction device can only achieve one-time fixed-ratio reduction, the types of samples obtained are single, and the reduction device needs to cooperate with manual work to complete the feeding work and sample collection work, so the work efficiency is low. Utility Model Content

[0005] The purpose of the utility model is to provide a reduction device and a combined sample preparation machine to solve the problem that the reduction device in the prior art can only achieve one-time fixed-ratio reduction. The reduction device of the utility model can achieve multiple reductions of samples, the reduction products are diverse, the sample preparation is automatic and efficient, and the sample precision is qualified.

[0006] The utility model provides a shrinking device, which has a first direction and includes

[0007] frame;

[0008] A slot-type sample dividing bucket, the slot-type sample dividing bucket is movably connected to the frame, a plurality of sample dividing slots are arranged in the slot-type sample dividing bucket, the plurality of sample dividing slots are arranged in a first direction, and the outlets of the plurality of sample dividing slots are respectively connected to different collecting devices;

[0009] A driving mechanism is connected to the frame, and the driving mechanism is connected to the slot type sample dividing hopper and can drive the slot type sample dividing hopper to move in a first direction.

[0010] As a preferred solution of the utility model, the frame has a first frame and a second frame in the second direction respectively, and guide rails arranged along the first direction are respectively arranged on the first frame and the second frame, the trough type sample dividing bucket is connected to a connecting frame, and a slider adapted to the guide rail is arranged on the connecting frame, and the trough type sample dividing bucket is slidably set on the guide rail through the slider.

[0011] As a preferred solution of the utility model, the driving mechanism includes a first motor, a lead screw and a slide, the output shaft of the first motor is connected to one end of the lead screw, the lead screw is arranged along a first direction, the slide can be movably connected to the lead screw, and the connecting frame is connected to the slide.

[0012] As a preferred solution of the utility model, the connecting frame is in a Y-shaped structure, and the connecting frame includes a first support plate, a second support plate and a third support plate. The first support plate and the second support plate are symmetrically arranged about the center line of the third support plate. The first support plate and the second support plate are respectively connected to the two sides of the trough type sample dividing bucket, and the third support plate is connected to the driving mechanism.

[0013] The utility model also provides a combined sample making machine, including the reduction device and an automatic weighing device, an auxiliary feeding device, a stirring device and a conveying device. The automatic weighing device is connected to the auxiliary feeding device and is used for weighing samples during the feeding process. The auxiliary feeding device is arranged on one side of the stirring device and is used for feeding materials to the stirring device. One end of the conveying device is connected to the outlet end of the stirring device and the other end is connected to the reduction device.

[0014] As a preferred solution of the utility model, the auxiliary loading device includes a driving assembly, a guide mechanism and a cylinder rack for placing sample barrels, a first sliding shaft and a second sliding shaft are respectively arranged on both sides of the cylinder rack, the guide mechanism includes a first guide groove and a second guide groove, the first guide groove is arranged vertically, the second guide groove is arranged in an inverted L shape, the vertical groove of the second guide groove is arranged close to the lower half of the first guide groove, and the transverse groove of the second guide groove extends toward the entrance of the stirring device, the driving assembly is connected to the cylinder rack and can drive the first sliding shaft to slide in the first guide groove and the second sliding shaft to slide in the second guide groove.

[0015] As a preferred solution of the utility model, the stirring device includes a stirring shaft, a stirring barrel and a second motor, the second motor is arranged on the top plate of the stirring barrel, the output shaft of the second motor is connected to the stirring shaft, and the stirring shaft is vertically arranged in the stirring barrel.

[0016] As a preferred solution of the utility model, the conveying device includes a first belt conveyor and a box body, the first belt conveyor is arranged in the box body, a feed port is arranged on the upper side of one end of the box body, and a discharge hopper is arranged on the lower side of the other end of the box body, the discharge port of the stirring device extends into the feed port of the box body, the discharge hopper is directly opposite to the top of the trough type sample dividing hopper, and the thickness of the discharge hopper in the first direction is smaller than the thickness of the sample dividing trough in the first direction.

[0017] Compared with the prior art, the utility model has the following positive effects:

[0018] The shrinking device provided by the utility model comprises a frame; a slot-type sample dividing bucket, the slot-type sample dividing bucket is movably connected to the frame, a plurality of sample dividing slots are arranged in the slot-type sample dividing bucket, the plurality of sample dividing slots are arranged in a first direction, and the outlets of the plurality of sample dividing slots are respectively connected to different collecting devices; a driving mechanism, the driving mechanism is connected to the frame, the driving mechanism is connected to the slot-type sample dividing bucket and can drive the slot-type sample dividing bucket to move in the first direction. When the shrinking device of the utility model is in use, the driving mechanism drives the slot-type sample dividing bucket to move in the first direction, so that different sample dividing slots correspond to the flow material, and the system automatically calculates and adjusts the residence time of each sample dividing slot at the flow material according to the input weight and the sample retention rule requirements or the manually input sample retention requirements, so as to realize the automatic quantitative quality shrinking of the sample. Multiple sample dividing slots can realize multiple shrinking of samples, and the shrinking products are diverse, and the sample preparation is automatic and efficient, and the sample precision is qualified. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a structural schematic diagram of the combined prototype making machine of the utility model;

[0021] Figure 2 It is a front view of the combined prototype making machine of the utility model;

[0022] Figure 3 It is a structural schematic diagram of the shrinking device and the collecting device of the utility model;

[0023] Figure 4 It is a structural schematic diagram of a reduction device and a collection device of the utility model;

[0024] Figure 5 It is a structural schematic diagram of the auxiliary feeding device and the stirring device in the utility model;

[0025] Figure 6 It is a structural schematic diagram of the stirring device in the utility model;

[0026] Figure 7 It is a structural schematic diagram of the conveying device in the utility model;

[0027] Figure 8 It is a top view of the conveying device in the utility model;

[0028] Fig. 9 for Figure 8 AA cross section in.

[0029] In the figure: 1. reduction device; 11. frame; 111. first frame; 112. second frame; 12. driving mechanism; 121. first motor; 122. slide; 13. slotted sample divider; 14. sample divider; 141. first sample divider; 142. second sample divider; 143. third sample divider; 144. fourth sample divider; 15. connecting frame; 151. first support plate; 152. second support plate; 153. third support plate; 16. slide block; 17. guide rail; 2. auxiliary feeding device; 21. drum frame; 221. first guide groove; 222. second guide groove; 223. first sliding shaft; 224. second sliding shaft; 231. The first sprocket; 232, the second sprocket; 233, the rotating shaft; 234, the third sprocket; 235, the fourth sprocket; 236, the third motor; 3, the stirring device; 31, the stirring barrel; 32, the second motor; 33, the top plate; 34, the stirring shaft; 4, the conveying device; 41, the box body; 411, the upper door; 412, the lower drawer; 42, the belt conveyor; 43, the discharging hopper; 511, the first receiving hopper; 512, the guide member; 513, the receiving barrel; 521, the second belt conveyor; 522, the crusher; 531, the third belt conveyor; 532, the first discharging end; 533, the second discharging end; 541, the second receiving hopper; 54, the fourth belt conveyor. DETAILED DESCRIPTION

[0030] In the description of the present utility model, it should be noted that, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", "front end", "back end", "head", "tail" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present utility model and simplification, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0031] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0032] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings.

[0033] Common combined sample making machines have a simple structure and a single function. They can usually only achieve one-time fixed-ratio reduction. The types of samples obtained are single and the quality is often too large. They need to be manually processed twice or even three times to meet the standard requirements. Both the feeding and sample collection work must be done manually, so the labor intensity is high and the efficiency is low. The reduction device of common combined sample making machines is unreasonably designed, and the internal structure is too compact and narrow, resulting in the inability of the reduction dividing groove to completely cut the material flow, so the precision of the reduction often does not meet the standard requirements.

[0034] In view of this, combined with Figure 1-Figure 9 , this embodiment provides a reduction device, aiming to overcome at least one of the above-mentioned technical problems.

[0035] In the following embodiment, a first direction x and a second direction y which are perpendicular to each other are introduced, wherein the first direction x is parallel to the length direction of the conveying device 4 , that is, parallel to the moving direction of the trough type sample dividing bucket 13 ; the second direction y is parallel to the width direction of the sample dividing trough 14 .

[0036] This embodiment provides a subtraction device, such as Figure 3 and Figure 4 As shown, it has a first direction x, and includes a frame 11, a slotted sample divider 13 and a driving mechanism 12. The frame 11 is used to support and connect the slotted sample divider 13 and the driving mechanism 12. The frame 11 is a frame structure formed by connecting a plurality of support rods vertically and horizontally, and has good stability.

[0037] The trough type sample dividing bucket 13 is movably connected to the frame 11, and a plurality of sample dividing slots 14 are arranged in the trough type sample dividing bucket 13, and the plurality of sample dividing slots 14 are arranged in a first direction x. The outlets of the plurality of sample dividing slots 14 are respectively connected to different collecting devices. Specifically, the outlets of the plurality of sample dividing slots 14 are respectively extended in different directions and connected to different collecting devices. The trough type sample dividing bucket 13 is provided with a first sample dividing slot 141, a second sample dividing slot 142, a third sample dividing slot 143 and a fourth sample dividing slot 144. The collecting device is used to collect the reduced samples.

[0038] The driving mechanism 12 is connected to the frame 11 , and is connected to the slotted sample dividing hopper 13 and can drive the slotted sample dividing hopper 13 to move in the first direction x. The driving mechanism 12 is connected to a controller.

[0039] When the reduction device of this embodiment is in use, the driving mechanism 12 drives the slotted sample divider 13 to move in the first direction x, so that different sample dividers 14 correspond to the flow material. The system automatically calculates and adjusts the residence time of each sample divider 14 at the flow material according to the input weight and the sample retention rule requirements or the manually input sample retention requirements, so as to realize the automatic quantitative reduction of the sample. Multiple sample dividers 14 can realize multiple reduction of samples, and the reduction products are diverse, and the sample preparation is automatic and efficient, and the sample precision is qualified.

[0040] As a preferred embodiment, the frame 11 has a first frame 111 and a second frame 112 in the second direction y. Guide rails 17 arranged along the first direction x are respectively arranged on the first frame 111 and the second frame 112, and the slot-type sample dividing hopper 13 is connected to a connecting frame 15, and a slider 16 adapted to the guide rail 17 is arranged on the connecting frame 15, and the slot-type sample dividing hopper 13 is slidably arranged on the guide rail 17 through the slider 16. The connecting frame 15 plays a role of supporting and connecting the slot-type sample dividing hopper 13.

[0041] When the driving mechanism 12 drives the slotted sample divider 13 to move in the first direction x, the slider 16 moves along the guide rail 17 in the first direction x to guide the movement of the slotted sample divider 13 and reduce the resistance of the driving mechanism 12 to drive the slotted sample divider 13 to move.

[0042] As a preferred implementation mode, Figure 3 and Figure 4 As shown, the driving mechanism 12 includes a first motor 121, a lead screw and a slide 122. The output shaft of the first motor 121 is connected to one end of the lead screw (not shown in the figure). The lead screw is arranged along the first direction x, the slide 122 can be movably connected to the lead screw, and the connecting frame 15 is connected to the slide 122. The first motor 121 drives the lead screw to rotate, so that the slide 122 moves along the lead screw in the first direction x, and the slide 122 drives the slot type sample divider 13 to move synchronously through the connecting frame 15.

[0043] In addition, the driving mechanism 12 may be an air cylinder or an oil cylinder, etc., which is connected to the slotted sample dividing hopper 13 via the connecting frame 15, and may also drive the slotted sample dividing hopper 13 to move in the first direction x.

[0044] As a preferred embodiment, the connecting frame 15 is in a Y-shaped structure, and the connecting frame 15 includes a first support plate 151, a second support plate 152 and a third support plate 153. The first support plate 151 and the second support plate 152 are symmetrically arranged about the center line of the third support plate 153, and the center line of the third support plate 153 is parallel to the first direction x. The first support plate 151 and the second support plate 152 are respectively connected to the two sides of the slot type sample dividing bucket 13, and the slider 16 is connected to the first support plate 151 and the second support plate 152. The third support plate 153 is connected to the driving mechanism 12. The Y-shaped connecting frame 15 enables the driving mechanism 12 to make the forces on both sides of the slot type sample dividing bucket 13 parallel when driving the slot type sample dividing bucket 13 to move, so that the moving process is smoother and the positioning is more precise.

[0045] In addition, the connecting frame 15 can also be a rectangular frame structure or a pentagonal frame structure, etc., which plays the role of connecting the driving mechanism 12 and the trough-type sample dividing bucket 13.

[0046] The present embodiment also provides a combined sample preparation machine, including the above-mentioned reduction device 1 and an automatic weighing device, an auxiliary feeding device 2, a stirring device 3 and a conveying device 4. The automatic weighing device is connected to the auxiliary feeding device 2 and is used to weigh the sample during the feeding process. The auxiliary feeding device 2 is arranged on one side of the stirring device 3 and is used to feed the material to the stirring device 3, and the stirring device 3 mixes the material sample thoroughly. One end of the conveying device 4 is connected to the outlet end of the stirring device 3 and the other end is connected to the reduction device 1. The feeding direction of the conveying device 4 is parallel to the first direction x, and is used to convey the material evenly stirred by the stirring device 3 to the reduction device. The reduction device 1 and the automatic weighing device, the auxiliary feeding device 2, the stirring device 3 and the conveying device 4 are all connected to the controller.

[0047] The working process of the combined sample making machine of this embodiment is as follows: first, the material sample to be tested is placed in the barrel of the auxiliary feeding device; then the automatic weighing device automatically weighs the weight of the input sample; the auxiliary feeding device 2 automatically pours the material sample into the stirring device 3 to fully mix it; after the stirring is completed, the mixed material sample is transported to the reduction device through the conveying device 4; the first motor 121 automatically adjusts the residence time of multiple sample dividing slots 14 at the flow material according to the input weight information and the sample retention rules specified in the program, so as to realize the automatic quantitative mass reduction of the sample.

[0048] The combined sample preparation machine of this embodiment can automatically and efficiently mix, shrink and crush samples, thereby improving inspection efficiency.

[0049] As a preferred embodiment, the auxiliary loading device 2 comprises a driving assembly, a guide mechanism and a drum rack 21 for placing the sample barrel. The automatic weighing device is a gravity sensor, and the gravity sensor is arranged on the sample barrel.

[0050] like Figure 5As shown, the first sliding shaft 223 and the second sliding shaft 224 are respectively arranged on both sides of the drum frame 21, the second sliding shaft 224 is connected to the upper side of the drum frame 21, and the first sliding shaft 223 is connected to the lower side of the drum frame 21. The guide mechanism includes a first guide groove 221 and a second guide groove 222. The first guide groove 221 is arranged vertically, and the second guide groove 222 is arranged in an inverted L shape. The vertical groove of the second guide groove 222 is arranged close to the lower half of the first guide groove 221, and the transverse groove of the second guide groove 222 extends to the entrance of the stirring device 3. The driving assembly is connected to the drum frame 21 and can drive the first sliding shaft 223 to slide in the first guide groove 221 and the second sliding shaft 224 to slide in the second guide groove 222.

[0051] When the driving assembly drives the drum rack 21 to move upward, the first sliding shaft 223 moves upward in the first guide groove 221, and the second sliding shaft 224 first moves upward in the vertical groove, and then the second sliding shaft 224 moves toward the entrance of the stirring device 3 in the transverse groove, so that the drum rack 21 tilts toward the entrance of the stirring device 3. As the first sliding shaft 223 continues to move upward in the first guide groove 221, the barrel mouth of the sample barrel tilts downward, thereby pouring the material in the barrel into the stirring device 3. After the material is poured, the gravity sensor detects that the weight of the sample barrel has been reduced to a certain weight, and the driving assembly drives the first sliding shaft 223 to move downward in the first guide groove 221, and the second sliding shaft 224 moves downward in the second guide groove 222, so as to move the drum rack 21 downward.

[0052] The driving assembly comprises a first sprocket 231 arranged on both sides of the frame bottom, a rotating shaft 233 and a third motor 236 arranged on the top of the frame, a fourth sprocket 235 is connected to the output shaft of the third motor 236, a third sprocket 234 and two second sprockets 232 are connected to the rotating shaft 233, two second sprockets 232 are arranged on the two ends of the rotating shaft 233, the fourth sprocket 235 is connected to the third sprocket 234 by a first chain (not shown), and the second sprocket 232 and the first sprocket 231 on the same side are connected by a second chain (not shown). The two sides of the cartridge frame 21 are respectively connected to a second chain. The third motor 236 drives the rotating shaft 233 to rotate, thereby the second chain is rotated around the second sprocket 232 and the first sprocket 231, thereby driving the cartridge frame 21 to move up and down. This driving assembly has good driving stability through chain transmission.

[0053] In addition, the driving assembly may also be other existing driving devices, such as a driving device for driving an elevator to move up and down, as long as it can drive the drum frame 21 to move up and down.

[0054] As a preferred implementation mode, Figure 6As shown, the stirring device 3 includes a stirring shaft 34, a stirring barrel 31 and a second motor 32, wherein the second motor 32 is disposed on a top plate 33 of the stirring barrel 31, and an output shaft of the second motor 32 is connected to the stirring shaft 34, and the stirring shaft 34 is vertically disposed in the stirring barrel 31. The second motor 32 drives the stirring shaft 34 to rotate, thereby uniformly stirring the materials in the stirring barrel 31. The stirring barrel 31 is conical, with an inlet disposed at its top end and an outlet disposed at its bottom end.

[0055] As a preferred implementation mode, Figure 7-Figure 9 As shown, the conveying device 4 includes a first belt conveyor 42 and a box body 41, and the first belt conveyor 42 is arranged in the box body 41. The conveying device 4 is arranged at an angle. An inlet is arranged on the upper side of one end of the box body 41, and a discharge hopper 43 is arranged on the lower side of the other end of the box body 41. The discharge port of the stirring device 3 extends into the inlet of the box body 41, and the discharge hopper 43 is directly opposite to the top of the trough-type sample dividing hopper 13. The material flowing out of the discharge port of the stirring device 3 flows directly into the box body 41 to avoid dust, and is transported to the discharge hopper 43 through the belt in the box body 41, and then flows into the sample dividing trough 14. The thickness of the discharge hopper 43 in the first direction x is less than the thickness of the sample dividing trough 14 in the first direction x, so that the material flowing out of the discharge hopper 43 can enter the same sample dividing trough 14 when shrinking, completely cutting the material flow and improving the precision of shrinking. An upper door is provided on the upper side of the box body 41 to facilitate observation of the internal condition of the box body 41 when the upper door 411 is opened, and a lower drawer 412 is provided on the lower side of the box body 41 to facilitate observation of the operating condition of the belt conveyor when the lower drawer 412 is opened.

[0056] like Figure 3 and Figure 4As shown, the collecting device includes a first collecting device, a second collecting device, a third collecting device and a fourth collecting device. Among them, the first collecting device is connected to the first sample dividing slot 141, the second collecting device is connected to the second sample dividing slot 142, the third collecting device is connected to the third sample dividing slot 143, and the fourth collecting device is connected to the fourth sample dividing slot 144. The first collecting device includes a first receiving hopper 511, a guide 512 and a receiving barrel 513. The bottom end of the first receiving hopper 511 is connected to the guide 512, and the receiving barrel 513 is placed under the guide 512. The first receiving hopper 511 is used to receive the sample flowing out of the first sample dividing slot 141, and the guide 512 is used to change the direction of the sample flowing down, so that the sample is introduced into different receiving barrels 513. The receiving barrel 513 is placed on the frame. The first collecting device includes a second belt conveyor 521 and a crusher 522. The crusher 522 is connected to the second belt conveyor 521. The second belt conveyor 521 receives the sample flowing out of the second sample separation slot 142 and transfers the sample to the crusher for crushing. The crusher 522 is a double-roll crusher, which further reduces the particle size of the sample. After the sample is crushed, it is finally stored in the sample bucket / bag. The third collecting device includes a third belt conveyor 531. The two ends of the third belt conveyor 531 are respectively provided with a first discharge end 532 and a second discharge end 533. The third belt conveyor 531 receives the sample flowing out of the third sample separation slot 143. The sample discharged from the first discharge end 532 can be directly bagged. The second discharge end 533 is connected to the fourth belt conveyor 54 for conveying to another place for bagging. The fourth collecting device includes a second receiving hopper 541. The second receiving hopper 541 receives the sample flowing out of the fourth sample separation slot 144. The second receiving hopper 541 is connected to the fourth belt conveyor 54. The sample enters the sample bucket / bag through the fourth belt conveyor 54.

[0057] The above is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make several modifications and improvements without departing from the creative concept of the present invention, which should be included in the protection scope of the present invention.

Claims

1. A shrinking device, characterized in that: Having a first direction, comprising Frame (11); A trough-type sample dividing hopper (13), the trough-type sample dividing hopper (13) being movably connected to the frame (11), a plurality of sample dividing troughs (14) being arranged in the trough-type sample dividing hopper (13), the plurality of sample dividing troughs (14) being arranged in a row in a first direction, and the outlets of the plurality of sample dividing troughs (14) being respectively connected to different collecting devices; A driving mechanism (12) is connected to the frame (11), the driving mechanism (12) is connected to the slotted sample dividing hopper (13) and is capable of driving the slotted sample dividing hopper (13) to move in a first direction.

2. A subtraction device according to claim 1, characterized in that: The frame (11) has a first frame (111) and a second frame (112) in the second direction, guide rails (17) arranged along the first direction are respectively arranged on the first frame (111) and the second frame (112), the slot-type sample dividing hopper (13) is connected to a connecting frame (15), a sliding block (16) adapted to the guide rail (17) is arranged on the connecting frame (15), and the slot-type sample dividing hopper (13) is slidably arranged on the guide rail (17) via the sliding block (16).

3. A subtraction device according to claim 2, characterized in that: The driving mechanism (12) comprises a first motor (121), a lead screw and a slide (122); the output shaft of the first motor (121) is connected to one end of the lead screw; the lead screw is arranged along a first direction; the slide (122) is movably connected to the lead screw; and the connecting frame (15) is connected to the slide (122).

4. A subtraction device according to claim 2, characterized in that: The connecting frame (15) is of a Y-shaped structure, and comprises a first supporting plate (151), a second supporting plate (152) and a third supporting plate (153), wherein the first supporting plate (151) and the second supporting plate (152) are symmetrically arranged about the center line of the third supporting plate (153), the first supporting plate (151) and the second supporting plate (152) are respectively connected to two sides of the trough-type sample dividing bucket (13), and the third supporting plate (153) is connected to the driving mechanism (12).

5. A combined prototype machine, characterized in that: It comprises a reduction device (1) as described in any one of claims 1 to 4, an automatic weighing device, an auxiliary feeding device (2), a stirring device (3) and a conveying device (4), wherein the automatic weighing device is connected to the auxiliary feeding device (2) and is used for weighing samples during the feeding process, the auxiliary feeding device (2) is arranged on one side of the stirring device (3) and is used for feeding materials to the stirring device (3), and one end of the conveying device (4) is connected to the outlet end of the stirring device (3) and the other end is connected to the reduction device (1).

6. A combined sample making machine according to claim 5, characterized in that: The auxiliary loading device (2) comprises a driving assembly, a guiding mechanism and a cartridge rack (21) for placing a sample barrel, a first sliding shaft (223) and a second sliding shaft (224) are respectively arranged on both sides of the cartridge rack (21), the guiding mechanism comprises a first guiding groove (221) and a second guiding groove (222), the first guiding groove (221) is arranged in a vertical direction, the second guiding groove (222) is arranged in an inverted L shape, the vertical groove of the second guiding groove (222) is arranged close to the lower half of the first guiding groove (221), and the transverse groove of the second guiding groove (222) is extended toward the entrance of the stirring device (3), the driving assembly is connected to the cartridge rack (21) and can drive the first sliding shaft (223) to slide in the first guiding groove (221) and the second sliding shaft (224) to slide in the second guiding groove (222).

7. A combined sample making machine according to claim 5, characterized in that: The stirring device (3) comprises a stirring shaft (34), a stirring barrel (31) and a second motor (32); the second motor (32) is arranged on a top plate (33) of the stirring barrel (31); an output shaft of the second motor (32) is connected to the stirring shaft (34); and the stirring shaft (34) is vertically arranged in the stirring barrel (31).

8. A combined sample making machine according to claim 5, characterized in that: The conveying device (4) comprises a first belt conveyor (42) and a box body (41), wherein the first belt conveyor (42) is arranged in the box body (41), an inlet is arranged on the upper side of one end of the box body (41), and a discharge hopper (43) is arranged on the lower side of the other end of the box body (41), the discharge port of the stirring device (3) extends into the inlet of the box body (41), the discharge hopper (43) is directly opposite to the top of the trough type sample dividing hopper (13), and the thickness of the discharge hopper (43) in the first direction is less than the thickness of the sample dividing trough (14) in the first direction.

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