Three-dimensional powder mixing machine

Abstract

The utility model relates to a three-dimensional powder mixing machine which comprises a machine body, an inner frame and an outer frame, the outer frame is rotatably mounted on the machine body, and the inner frame is rotatably mounted on the outer frame; the inner frame comprises four sets of supporting beams distributed in a cross shape and adaptive beams fixed to the supporting beams, and cup mats are installed on the supporting beams. The cup mat comprises a bottom mat and limiting claws located at the upper end of the bottom mat, the limiting claws comprise the first limiting claw and the second limiting claw, the first limiting claw is higher than the second limiting claw, and the first limiting claw and the three third limiting claws are used for limiting movement of a small-specification sample cup from the periphery. The four first limiting claws are used for limiting the movement of a large-specification sample cup from the periphery, and a pressing mechanism is mounted on the adaptive beam. According to the utility model, four small-specification sample cups can be simultaneously loaded to realize uniform mixing of small samples, and a large-specification sample cup can also be loaded to realize uniform mixing of large samples. And the sample cup can be locked in the inner frame or taken out of the inner frame in cooperation with the pressing mechanism.

Description

Technical Field

[0001] This utility model relates to the field of grain testing, specifically to a three-dimensional powder mixer. Background Technology

[0002] In grain testing, it is sometimes necessary to mix solid powdered test samples. Existing mixers used for mixing test powders usually employ a single mixing method, such as rotary stirring or vibration stirring, which results in poor mixing performance.

[0003] Chinese patent CN 212492681 U discloses an experimental powder mixer, including a main body and a mixing device. The main body is provided with an outer frame and an inner frame. A sample cup is placed in the inner frame. A servo motor can drive the outer frame to rotate along the horizontal axis and simultaneously drive the inner frame to rotate along the vertical axis. Therefore, the powder in the sample cup can be rotated and stirred in a double 360-degree rotation, which is effective, uniform and without dead corners, and achieves a very good mixing effect.

[0004] However, the existing technologies mentioned above have the following shortcomings: First, they can only be adapted to sample cups of a single size. However, there is a need to mix large and small samples during the testing process. In order to avoid the powder sticking to the sample cup wall after mixing, the corresponding sample cups of the corresponding size are usually used to hold the corresponding sample. Therefore, multiple mixers are required to meet the mixing requirements of large and small samples at the same time. Second, only one sample can be processed in a single operation. Therefore, the existing technologies are extremely time-consuming when the number of samples to be processed is large. Utility Model Content

[0005] The purpose of this invention is to provide a three-dimensional powder mixer to address the shortcomings of existing technologies.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A three-dimensional powder mixer includes a body, an inner frame, and an outer frame. The outer frame is rotatably mounted on the body via left-right extending outer frame pivots, and the inner frame is rotatably mounted on the outer frame via front-back extending inner frame pivots. The inner frame includes four sets of cross-shaped support beams and adapter beams fixed to the support beams. A coaster is mounted on each support beam. The coaster includes a base and limiting claws located at the ends of the base. The limiting claws include a first limiting claw and a second limiting claw. The height of the first limiting claw is higher than the height of the second limiting claw. One first limiting claw and three corresponding second limiting claws are paired. A set of limiting claws is formed to limit the movement of the lower half of the small sample cup along the support plane of the support beam. A total of four sets of limiting claws are provided on the bottom pad. The four first limiting claws of the four sets of limiting claws are symmetrical about the center of rotation of the inner frame. The four first limiting claws cooperate to limit the movement of the lower half of the large sample cup along the support plane of the support beam. A clamping mechanism for pressing the corresponding sample cup from the top is installed on the adapter beam. The clamping mechanism includes a locking state that presses the sample cup into the cup pad and an unlocking state that releases the sample cup so that the sample cup can be taken out of the cup pad.

[0008] Furthermore, the four sets of limiting claws are symmetrical about the center of the inner frame rotation axis.

[0009] Furthermore, a bolt hole is provided in the center of the base pad, and the base pad is fixed to the support beam by screws or bolts, with the head of the screws or bolts completely recessed into the bolt hole.

[0010] Furthermore, the adapter beam is cross-shaped, and the ends of the support beam and the corresponding ends of the adapter beam are fixed together by connecting beams.

[0011] Furthermore, the clamping mechanism includes a clamping seat, a clamping rod, a wrench, and a connecting rod. The clamping seat is fixed on the adapter beam. The clamping rod is installed in the clamping seat and can be guided and moved in the vertical direction. The upper end of the wrench is hinged to the clamping seat, and the middle part is hinged to the upper end of the connecting rod. The lower end of the connecting rod is hinged to the clamping rod. The lower end of the clamping rod is used to press against the corresponding sample cup to form a clamping end.

[0012] Furthermore, the center position of each set of limiting claws is offset from the adapter beam at a certain angle on the support plane so that the center part of the small sample cup is located below the clamping rod.

[0013] Furthermore, the sample cup includes a cup body and a sample cup lid disposed on the upper end of the cup body, and an elastic material is provided at the connection between the sample cup lid and the cup body.

[0014] Furthermore, a positioning groove is provided on the upper end of the sample cup lid, and the shape of the positioning groove matches the shape of the pressing end of the pressing mechanism so that it can be engaged.

[0015] Furthermore, the sample cup includes an observation section made of transparent material, the height of which is 1 / 2 of the height of the sample cup and the width of which is 1 / 4 of the circumference of the sample cup.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] This invention modifies the design of the coaster, allowing the inner frame to accommodate either a single large sample cup for mixing large samples or four smaller sample cups for mixing smaller samples. This significantly reduces mixing time when mixing a large number of small samples. To place a sample cup, simply lift the lever to insert it into the coaster, then press down the lever to lock the cup in place. The coaster's perimeter locking claws restrict the sample cup's movement along the supporting plane, ensuring stable fixation.

[0018] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a scientific and reasonable structure, is safe and convenient to use, and provides great help to people. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0020] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of a three-dimensional powder mixer according to the present invention;

[0021] Figure 2 This is a top view of four small sample cups installed on the support beam.

[0022] Figure 3 This is a top view of a large sample cup mounted on a support beam.

[0023] Figure 4 This is a cross-sectional view of the coaster;

[0024] Figure 5 This is a schematic diagram of the three-dimensional structure after the inner and outer frames are assembled;

[0025] Figure 6 It is a 3D view of the clamping mechanism;

[0026] Figure 7 It is a 3D view of the cup.

[0027] Figure 8 This is a partial structural diagram of the connection between the coaster and the support beam;

[0028] In the diagram: 1. Outer frame pivot; 2. Outer frame; 3. Inner frame pivot; 4. Inner frame; 5. Coaster; 6. Sample cup; 7. Pressing mechanism; 41. Support beam; 42. Adaptor beam; 43. Connecting beam; 44. Through hole; 51. Bolt hole; 52. Bottom pad; 53. First limiting claw; 54. Second limiting claw; 61. Small sample cup; 62. Large sample cup; 63. Cup body; 64. Sample cup lid; 66. Observation section; 71. Pressing rod; 72. Compression spring; 73. First pressing seat; 74. Second pressing seat; 75. Limiting end. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] An embodiment of the three-dimensional powder mixer of this utility model:

[0031] The specific structure of a three-dimensional powder mixer is as follows: Figures 1 to 8 As shown, the device includes a body (not shown in the figure for clarity of the internal structure). An outer frame pivot 1 extending left and right is mounted on the body, and an outer frame 2 is rotatably mounted on the body via the outer frame pivot 1. An inner frame pivot 3 extending front and rear is mounted on both the front and rear walls of the outer frame 2, and an inner frame 4 is rotatably mounted inside the outer frame 2 via the inner frame pivot 3. The inner frame 4 includes four sets of cross-shaped support beams 41 and four sets of cross-shaped adapter beams 42. The ends of the support beams 41 and the corresponding ends of the adapter beams 42 are fixed together by connecting beams 43. A cup pad 5 is bolted to the support beams 41. The cup pad 5 has a groove in the center, and the lower end of the sample cup 6 is placed in the groove of the cup pad 5, thus restricting its degree of freedom parallel to the upper surface of the support beam 41. A clamping mechanism 7 is provided on the adapter beam 42, which is used to clamp the sample cup 6 on the support beam 41. The machine body is equipped with a servo motor for driving the outer frame to rotate. A transmission mechanism is provided between the outer frame rotating shaft and the inner frame rotating shaft. The structure of the transmission mechanism is the same as that of the prior art. Its function is to transmit the rotation of the outer frame to the inner frame so as to drive the inner frame to rotate synchronously. Therefore, it will not be described in detail in this application.

[0032] The coaster 5 includes a disc-shaped base 52 and limiting claws located at the ends of the base 52. The limiting claws include a first limiting claw 53 and a second limiting claw 54. The limiting claw furthest from the inner frame pivot 3 is the first limiting claw 53, and the others are the second limiting claws 54. The height of the first limiting claw 53 is higher than the height of the second limiting claw 54. The base 52 is provided with multiple bolt holes 51. The bolt holes 51 are larger at the top and smaller at the bottom. The upper part of the bolt holes 51 allows the head of the bolt to be recessed so that the lower end of the corresponding sample cup 6 can be tightly attached to the base 52.

[0033] Sample cup 6 comes in two sizes, large and small. A first limiting claw 53 and three second limiting claws 54 combine to form a set of limiting claws for the small sample cup 61. A total of four sets of limiting claws are provided for limiting the small sample cup 61, and these four sets of limiting claws are symmetrical about the inner frame pivot 3. Therefore, in this embodiment, four small sample cups 61 can be loaded at once. After loading the four small sample cups 61, the top view is as follows. Figure 2 As shown. Among the four sets of limiting claws, the four first limiting claws 53 are also symmetrical about the center of the inner frame pivot 3. The diameter of the large sample cup 62 is the same as the diameter of the inner circle of the multiple first limiting claws 53. At this time, in this embodiment, a large sample cup 62 can be installed. The four first limiting claws 53 limit the size of the large sample cup 62. The top view is shown below. Figure 3 As shown, the bottom surface of the large sample cup 62 is supported by the second limiting claw 54 and will not contact the bottom pad 52.

[0034] Each sample cup 6 includes a cup body 63 and a sample cup lid 64 covering the upper end of the cup body 63. An elastic material is provided at the connection between the sample cup lid 64 and the cup body 63, so that the sample cup lid 64 can tightly cover the cup body 63. After the sample cup 6 is placed in the cup pad 5, the translational movement of the sample cup 6 along the support plane of the support beam 41 is restricted.

[0035] The clamping mechanism 7 includes a clamping seat 71, a clamping rod 72, a wrench 73, and a connecting rod 74. The clamping seat 71 is fixed to the adapter beam 42 by bolts. The clamping rod 72 is mounted in the clamping seat 71 and can be guided and moved in the vertical direction. The upper end of the wrench is hinged to the clamping seat 71, and the middle part is hinged to the upper end of the connecting rod 74. The lower end of the connecting rod 74 is hinged to the clamping rod 72. Therefore, the clamping mechanism 7 is actually a crank-slider mechanism. Pulling the wrench upward will lift the clamping rod 72 upward, making it convenient to pick up and put down the sample cup 6; pressing the wrench downward will cause the clamping rod 72 to press the sample cup 6 downward, fixing the sample cup in the inner frame 4. The lower end of the clamping rod 72 forms the clamping end for pressing the sample cup 6.

[0036] In a more preferred embodiment, the upper end of the sample cup lid 64 is provided with a positioning groove. The shape of the positioning groove matches the shape of the pressing end of the pressing mechanism 7 so that it can be inserted. The matching part of the two is a non-rotating body. This structure makes it more difficult for the pressing mechanism 7 to detach from the sample cup 6.

[0037] In this embodiment, the center position of each set of limiting claws is offset from the corresponding adapter beam 42 at a certain angle on the support plane so that the center part of the small sample cup 61 is located below the clamping rod. Therefore, in this embodiment, each small sample cup 61 is clamped in the center by one clamping mechanism 7, and each large sample cup 62 is clamped simultaneously by four clamping mechanisms 7. In other embodiments, if the center position of each set of limiting claws is exactly below the corresponding adapter beam 42, each sample cup 6 can also be clamped from both sides by two clamping mechanisms 7.

[0038] In this embodiment, the sample cup 6 includes an observation section 66 made of transparent material. The height of the observation section 66 is 1 / 2 of the height of the sample cup 6, and the width is 1 / 4 of the circumference of the sample cup 6. Therefore, the degree of mixing of the powder inside the cup can be observed without opening the lid.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A three-dimensional powder mixing machine characterized by comprising: The device comprises a body, an inner frame and an outer frame, the outer frame is rotatably installed on the body through outer frame shafts extending left and right, and the inner frame is rotatably installed on the outer frame through inner frame shafts extending front and back; the inner frame comprises four groups of support beams distributed in a cross shape and adaptive beams fixed with the support beams; a cup pad is installed on the support beam, the cup pad comprises a bottom pad and a limiting claw at the end of the bottom pad, the limiting claw comprises a first limiting claw and a second limiting claw, the height of the first limiting claw is higher than the height of the second limiting claw, one first limiting claw and three corresponding second limiting claws cooperate to form a group of limiting claws for limiting the movement of the lower half of a small-size sample cup along the support beam support plane, four groups of limiting claws are arranged on the bottom pad, and four first limiting claws in the four groups of limiting claws are symmetric about the center of the inner frame shaft, and the four first limiting claws cooperate to limit the movement of the lower half of a large-size sample cup along the support beam support plane; a pressing mechanism for pressing the corresponding sample cup from the upper end is installed on the adaptive beam, and the pressing mechanism comprises a locked state of pressing the sample cup in the cup pad and an unlocked state of leaving the sample cup to take out the sample cup from the cup pad.

2. The three-dimensional powder mixing machine according to claim 1, characterized by: The four groups of limiting claws are symmetric about the center of the inner frame shaft.

3. The three-dimensional powder mixing machine according to claim 1, characterized by: A bolt hole is arranged at the center of the bottom pad, the bottom pad is fixed on the support beam through a screw or a bolt, and the head of the screw or the bolt is completely sunk into the bolt hole.

4. The three-dimensional powder mixing machine according to claim 1, characterized by: The adaptive beam is in a cross shape, and the end of the support beam and the corresponding end of the adaptive beam are fixed through a connecting beam.

5. A three-dimensional powder mixing machine according to any one of claims 1 to 4, characterized in that: The pressing mechanism comprises a pressing seat, a pressing rod, a wrench and a connecting rod, the pressing seat is fixed on the adaptive beam, the pressing rod is movably installed in the pressing seat in the up-down direction, the upper end of the wrench is hinged to the pressing seat, the middle part is hinged to the upper end of the connecting rod, and the lower end of the connecting rod is hinged to the pressing rod; the lower end of the pressing rod is used for pressing on the corresponding sample cup to form a pressing end.

6. A three-dimensional powder mixing machine according to claim 5, characterized in that: The center position of each group of limiting claws is offset from the adaptive beam on the support plane by a certain angle to make the center part of the small-size sample cup located below the pressing rod.

7. The three-dimensional powder mixing machine according to claim 5, characterized by: The sample cup comprises a cup body and a sample cup cover arranged on the upper end of the cup body, and an elastic material is arranged at the connection between the sample cup cover and the cup body.

8. A three-dimensional powder mixing machine according to claim 7, characterized in that: A positioning groove is arranged on the upper end of the sample cup cover, and the shape of the positioning groove is consistent with the shape of the pressing end of the pressing mechanism for clamping.

9. A three-dimensional powder mixing machine according to claim 8, characterized in that: The sample cup comprises an observation part made of transparent material, and the height of the observation part accounts for 1 / 2 of the height of the sample cup and the width accounts for 1 / 4 of the circumference of the sample cup.

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