Telescopic sample mixing device

Abstract

The utility model discloses a telescopic sample mixing device, and particularly relates to the field of mixing devices, the telescopic sample mixing device comprises a bottom plate, both sides of the top of the bottom plate are provided with mounting plates, the middle position of one end of the bottom plate is provided with a control box, the top between the mounting plates is provided with a material mixing cylinder, one side of the top of the material mixing cylinder is provided with a feeding hopper, and the feeding hopper is provided with a feeding hopper. And a control valve is arranged in the feeding hopper. According to the utility model, the blending device is set to be telescopic, and meanwhile, the stirring assembly in the mixing barrel is also telescopic, so that the volume of the equipment can be adjusted according to the quantity of samples during use, the device is extended when the quantity of the samples is large, and the device is retracted when the quantity of the samples is small, so that the device adapts to the quantity of the uniformly mixed samples, and the blending efficiency and the blending quality are improved; the mixing cylinder of the device can rotate under the transmission action of the gear, the rotation direction of the internal stirring assembly is opposite to the rotation direction of the external mixing cylinder, the cylinder body and the stirring impeller form reflux, and the mixing efficiency is higher.

Description

Technical Field

[0001] The utility model relates to the field of mixing devices, and more specifically, to a telescopic sample mixing device. Background Art

[0002] In scientific research, sample mixing is a very important link, especially in the field of inspection and testing. Insufficient sample mixing uniformity often leads to wrong results. Therefore, samples need to be mixed before testing to ensure sample uniformity and accuracy of results.

[0003] After searching, the existing patent (publication number: CN216284581 U) discloses a powder sample mixing device, including a motor, a discharge component arranged above the motor for dust prevention, and a mixing component arranged inside the discharge component for mixing. The discharge component includes a shelf, a slide rail, a slider, a bolt, a rotating shaft, a stirring bin, a connecting ring, and a raw material bin. The device is optimized and improved for the traditional powder sample mixing device, and has the characteristics of completely preventing dust from being exposed to the air during the discharge work, which can ensure that the air quality and environment of the laboratory are not polluted by dust. Through the work of the mixing component, stirring in different directions can be performed during the mixing work, which is conducive to breaking up the agglomerated powder and making different powders mixed more evenly.

[0004] The existing laboratory mixing device has a fixed volume and cannot adjust its own volume according to the sample amount. The mixing efficiency is low and the sample cannot be completely mixed. At the same time, the above-cited patent document does not propose relevant solutions to solve the above problems.

[0005] Therefore, a telescopic sample mixing device is proposed to address the above problems. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, an embodiment of the utility model provides a telescopic sample mixing device to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a telescopic sample mixing device, comprising a bottom plate, mounting plates are arranged on both sides of the top of the bottom plate, and a control box is arranged at the middle position of one end of the bottom plate, a mixing barrel is arranged on the top between the mounting plates, a feeding hopper is arranged on one side of the top of the mixing barrel, and a control valve is arranged in the feeding hopper, a stirring assembly is installed in the mixing barrel, and transmission teeth are evenly arranged on both sides of the outer surface of the mixing barrel;

[0008] A driving motor is installed at the middle position of the mounting plate away from the mixing barrel, and a stirring motor is fixed on the mounting plate above one of the driving motors. The output end of the stirring motor is connected to the stirring assembly through a rotating shaft.

[0009] Preferably, a movable groove is opened at the central position inside the base plate, and a bidirectional screw rod is installed in the movable groove, a servo motor is fixed at the middle position of one side of the base plate, and the output end of the servo motor is connected to the bidirectional screw rod through a rotating shaft, and a screw rod sleeve is installed at the bottom of the mounting plate, and the screw rod sleeve cooperates with the bidirectional screw rod.

[0010] Preferably, a rotating bin is provided at the top of the mounting plate, and the inner diameter of the rotating bin matches the outer diameter of the mixing barrel, a driving bin is provided in the mounting plate below the rotating bin, a driving gear is provided at the bottom end of the driving bin, and a transmission gear meshing with the driving gear is provided in the driving bin above the driving gear, and the transmission gear meshes with the transmission teeth.

[0011] Preferably, the mixing barrel includes a central telescopic part and rotating cylinder parts symmetrically arranged on both sides of the telescopic part, and a flange is fixed on one side of the rotating cylinder part close to the telescopic part. The outer periphery of the flange is evenly penetrated by the limiting guide pillars, and the flange and the limiting guide pillars are slidably connected.

[0012] Preferably, the rotating cylinder parts on both sides of the transmission tooth are sleeved with limiting rings, and the spacing between the limiting rings matches the thickness of the mounting plate, and the position of the interior of the rotating bin near the transmission tooth is recessed inward to form a groove.

[0013] Preferably, the stirring assembly includes a stirring shaft, a connecting rod and a stirring impeller. The stirring shaft is installed inside the rotating drum, and the connecting rod is connected between the stirring shafts. The outside of the stirring shaft is evenly provided with stirring impellers, and the outer diameter of the stirring impeller is consistent with the inner diameter of the mixing drum.

[0014] Preferably, the cross-section of the connecting rod is petal-shaped, and a telescopic groove matching the shape of the connecting rod is provided inside the stirring shaft, and both ends of the connecting rod extend into the stirring shaft.

[0015] Technical effects and advantages of the utility model:

[0016] 1. Compared with the prior art, the telescopic sample mixing device is configured to be telescopic, and the stirring assembly inside the mixing barrel is also telescopic. When in use, the volume of the device can be adjusted according to the amount of sample. When the amount of sample is large, the device is extended, and when the amount of sample is small, the device is contracted to adapt to the amount of sample to be mixed, thereby improving the mixing efficiency and the mixing quality;

[0017] 2. Compared with the prior art, the mixing barrel of the telescopic sample mixing device can rotate under the action of gear transmission, and the rotation direction of its internal stirring component is opposite to the rotation direction of the external mixing barrel. The barrel and the stirring impeller form a counterflow, and the mixing efficiency is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model.

[0019] Figure 2 This is a schematic diagram of the structure of the mounting plate of the utility model.

[0020] Figure 3 This is a schematic diagram of the structure of the mixing barrel of the utility model.

[0021] Figure 4 This is a schematic diagram of the structure of the stirring component of the utility model.

[0022] The accompanying drawings are marked as follows: 1. bottom plate; 101. movable groove; 2. mounting plate; 201. rotating bin; 202. driving bin; 3. feeding hopper; 4. control box; 5. mixing barrel; 6. stirring motor; 7. driving motor; 8. bidirectional screw; 9. servo motor; 10. transmission gear; 11. driving gear; 12. screw sleeve; 13. limiting ring; 14. rotating drum; 15. telescopic part; 16. flange; 17. transmission gear; 18. limiting guide column; 19. stirring shaft; 20. connecting rod; 21. stirring impeller; 22. control valve; 23. stirring assembly. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Embodiment 1

[0025] As attached Figure 1 A telescopic sample mixing device shown in the figure comprises a bottom plate 1, mounting plates 2 are arranged on both sides of the top of the bottom plate 1, a control box 4 is arranged at the middle position of one end of the bottom plate 1, a mixing barrel 5 is arranged on the top between the mounting plates 2, a feeding hopper 3 is arranged on one side of the top of the mixing barrel 5, a control valve 22 is arranged in the feeding hopper 3, a stirring assembly 23 is installed in the mixing barrel 5, and transmission teeth 17 are evenly arranged on both sides of the outer surface of the mixing barrel 5;

[0026] A driving motor 7 is installed at the middle position of the mounting plate 2 away from the mixing barrel 5, and a stirring motor 6 is fixed on the mounting plate 2 above one of the driving motors 7. The output end of the stirring motor 6 is connected to the stirring assembly 23 through a rotating shaft.

[0027] Among them: the mixing time and the telescopic range of the mixing barrel 5 can be set on the control panel of the control box 4. When in use, the material to be mixed is added into the mixing barrel 5 from the feeding hopper 3, and the mixing operation can be started by closing the control valve 22. The stirring motor 6 can drive the stirring component 23 to rotate to stir and mix the material.

[0028] Embodiment 2

[0029] Based on the first embodiment, the solution in the first embodiment is further detailed in combination with the following specific working methods. Figures 1 to 4 As shown, see the following description for details:

[0030] As a preferred embodiment, a movable groove 101 is opened at the central position inside the base plate 1, and a bidirectional screw 8 is installed in the movable groove 101, a servo motor 9 is fixed at the middle position of one side of the base plate 1, and the output end of the servo motor 9 is connected to the bidirectional screw 8 through a rotating shaft, and a screw sleeve 12 is installed at the bottom of the mounting plate 2, and the screw sleeve 12 is matched with the bidirectional screw 8; further, when in use, the servo motor 9 drives the bidirectional screw 8 to rotate, so that the two screw sleeves 12 are brought closer to or separated from each other, and then drive the two mounting plates 2 to move closer to or separate from each other, so that the mixing barrel 5 is extended and retracted to adapt to the amount of samples that need to be mixed, thereby improving the mixing efficiency and the quality of mixing.

[0031] As a preferred embodiment, a rotating bin 201 is provided at the top of the mounting plate 2, and the inner diameter of the rotating bin 201 is consistent with the outer diameter of the mixing barrel 5, and a driving bin 202 is provided in the mounting plate 2 below the rotating bin 201, and a driving gear 11 is provided at the bottom of the driving bin 202, and a transmission gear 10 meshing with the driving gear 11 is provided in the driving bin 202 above the driving gear 11, and the transmission gear 10 is meshed with the transmission gear 17; further, the driving motor 7 is operated to drive the driving gear 11 to rotate, thereby causing the transmission gear 10 to rotate relatively, and then driving the mixing barrel 5 to rotate in the rotating bin 201, and the rotation direction of the mixing barrel 5 is opposite to the rotation direction of the stirring assembly 23, that is, a backflow is formed between the mixing barrel 5 and the stirring impeller 21, and the mixing efficiency is higher.

[0032] As a preferred embodiment, the mixing drum 5 includes a central telescopic portion 15 and rotating drum portions 14 symmetrically arranged on both sides of the telescopic portion 15, and a flange 16 is fixed to the side of the rotating drum portion 14 close to the telescopic portion 15, and the outer periphery of the flange 16 is evenly penetrated by a limiting guide column 18, and the flange 16 and the limiting guide column 18 are both slidably connected; further, the telescopic portion 15 can be a double-layer PVC spring tube, and an elastic spiral steel wire is arranged in the interlayer of the telescopic portion 15, and the limiting guide column 18 can limit the position of the two rotating drum portions 14 to avoid relative rotation between the two, so that the various parts of the mixing drum 5 can rotate synchronously, and the design is more reasonable.

[0033] As a preferred embodiment, limiting rings 13 are sleeved on the rotating cylinder portion 14 on both sides of the transmission tooth 17, and the spacing between the limiting rings 13 matches the thickness of the mounting plate 2, and the position of the rotating chamber 201 near the transmission tooth 17 is recessed inward to form a groove; further, the limiting ring 13 is designed to limit the rotating cylinder portion 14 to prevent it from shifting left or right, and to prevent the rotating cylinder portion 14 from being separated from the mounting plate 2, so that the rotation stability is stronger, and the groove design can accommodate the transmission tooth 17, so that the rotating cylinder portion 14 can rotate freely in the rotating chamber 201, and the design is more reasonable.

[0034] As a preferred embodiment, the stirring assembly 23 includes a stirring shaft 19, a connecting rod 20 and a stirring impeller 21. The stirring shafts 19 are installed inside the rotating drum 14, and the connecting rods 20 are connected between the stirring shafts 19. The stirring impellers 21 are evenly arranged on the outside of the stirring shafts 19, and the outer diameter of the stirring impeller 21 is consistent with the inner diameter of the mixing drum 5; further, the matching design allows the stirring impeller 21 to rotate freely in the mixing drum 5, and the stirring range is wider and the mixing efficiency is higher.

[0035] As a preferred embodiment, the cross-section of the connecting rod 20 is petal-shaped, and a telescopic groove matching the shape of the connecting rod 20 is opened inside the stirring shaft 19, and both ends of the connecting rod 20 extend into the stirring shaft 19; further, the connecting rod 20 can be telescoped inside the stirring shaft 19, thereby coordinating the telescopic movement of the rotating drum portion 14 to adjust the length of the stirring assembly 23, and the petal-shaped design prevents relative rotation between the connecting rod 20 and the stirring shaft 19, that is, the two stirring shafts 19 can rotate synchronously, and the design is more reasonable.

[0036] The working process of the utility model is as follows:

[0037] When in use, the power is turned on. First, the mixing time and the telescopic range of the mixing barrel 5 are set on the control panel of the control box 4. The servo motor 9 starts to work under the control of the control box 4, driving the bidirectional screw 8 to rotate, so that the two screw sleeves 12 are close to or separated from each other, and driving the two mounting plates 2 to be close to or separated from each other, so that the volume of the mixing barrel 5 is adapted to the amount of the sample to be mixed, and then the material to be mixed is added into the mixing barrel 5 from the feeding hopper 3, and the mixing operation can be started by closing the control valve 22. During mixing, the stirring motor 6 works, driving the stirring component 23 to rotate, and stirring and mixing the material. At the same time, the driving motor 7 works, driving the active gear 11 to rotate, so that the transmission gear 10 rotates relatively, and then drives the mixing barrel 5 to rotate in the rotating bin 201. The rotation direction of the mixing barrel 5 is opposite to that of the stirring component 23, that is, a backflow is formed between the mixing barrel 5 and the stirring impeller 21. After stirring for a certain period of time, the servo motor 9 works again, so that the mixing barrel 5 first extends and then contracts back to the set value, and the extension and retraction are repeated several times to mix the left and right samples.

[0038] Finally: The above are only preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A telescopic sample mixing device, comprising a bottom plate (1), characterized in that: Mounting plates (2) are provided on both sides of the top of the bottom plate (1), and a control box (4) is provided at the middle position of one end of the bottom plate (1), a mixing barrel (5) is provided on the top between the mounting plates (2), a feeding hopper (3) is provided on one side of the top of the mixing barrel (5), and a control valve (22) is provided in the feeding hopper (3), a stirring assembly (23) is installed in the mixing barrel (5), and transmission teeth (17) are evenly provided on both sides of the outer surface of the mixing barrel (5); A driving motor (7) is installed at a middle position of the mounting plate (2) away from the mixing barrel (5), and a stirring motor (6) is fixed on the mounting plate (2) above one of the driving motors (7), and the output end of the stirring motor (6) is connected to the stirring assembly (23) via a rotating shaft.

2. A telescopic sample mixing device according to claim 1, characterized in that: A movable groove (101) is provided at a central position inside the base plate (1), and a bidirectional screw rod (8) is installed in the movable groove (101); a servo motor (9) is fixed at a middle position on one side of the base plate (1), and the output end of the servo motor (9) is connected to the bidirectional screw rod (8) via a rotating shaft; a screw rod sleeve (12) is installed at the bottom of each mounting plate (2), and the screw rod sleeve (12) is matched with the bidirectional screw rod (8).

3. A telescopic sample mixing device according to claim 1, characterized in that: A rotating chamber (201) is provided at the top of each mounting plate (2), and the inner diameter of the rotating chamber (201) matches the outer diameter of the mixing barrel (5). A driving chamber (202) is provided in each mounting plate (2) below the rotating chamber (201). A driving gear (11) is provided at the bottom of each driving chamber (202), and a transmission gear (10) meshing with the driving gear (11) is provided in the driving chamber (202) above the driving gear (11), and the transmission gear (10) meshes with the transmission gear (17).

4. A telescopic sample mixing device according to claim 1, characterized in that: The mixing cylinder (5) comprises a central telescopic portion (15) and rotating cylinder portions (14) symmetrically arranged on both sides of the telescopic portion (15), and a flange (16) is fixed on one side of the rotating cylinder portion (14) close to the telescopic portion (15), and the outer periphery of the flange (16) evenly penetrates the limiting guide pillar (18), and the flange (16) and the limiting guide pillar (18) are both slidably connected.

5. The telescopic sample mixing device according to claim 3, characterized in that: Limiting rings (13) are sleeved on the rotating cylinder parts (14) on both sides of the transmission teeth (17), and the spacing between the limiting rings (13) matches the thickness of the mounting plate (2). The position of the rotating bin (201) near the transmission teeth (17) is inwardly recessed to form a groove.

6. A telescopic sample mixing device according to claim 4, characterized in that: The stirring assembly (23) comprises a stirring shaft (19), a connecting rod (20) and a stirring impeller (21). The stirring shaft (19) is installed inside the rotating cylinder (14), and the connecting rod (20) is connected between the stirring shafts (19). The stirring impeller (21) is evenly arranged on the outside of the stirring shaft (19), and the outer diameter of the stirring impeller (21) is consistent with the inner diameter of the mixing cylinder (5).

7. A telescopic sample mixing device according to claim 6, characterized in that: The cross section of the connecting rod (20) is petal-shaped, and a telescopic groove matching the shape of the connecting rod (20) is provided inside the stirring shaft (19), and both ends of the connecting rod (20) extend into the stirring shaft (19).

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