Automatic foil packaging mechanism and packaging device

Abstract

The utility model relates to the technical field of sample pretreatment equipment, and provides an automatic foil film sample packaging mechanism and a sample packaging device, wherein the sample packaging mechanism comprises: a mechanism body; a driving disk, which is rotatably connected to the mechanism body; a clamping block, wherein a plurality of clamping blocks are arranged in an annular structure around the rotation axis of the driving disk; a strip-shaped driving hole is provided on the clamping block, and one end of the driving hole is relatively close to the center of the annular structure; a driving shaft, which is connected to the driving disk and can rotate with the driving disk; the driving shaft is inserted in the driving hole and can slide and rotate relative to the driving hole; since the driving shaft is fixedly connected to the driving disk, the driving shaft has only one degree of freedom in one direction, that is, it rotates around the rotation axis of the driving disk, and the motion trajectory is simple and stable, and the force of the driving shaft is directly applied to the clamping block, and the clamping block realizes the motion of a specific trajectory under the constraint of its own driving hole, so that the motion of the clamping block is more stable and smooth, thereby effectively improving the working efficiency, stability and reliability of the mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of sample preprocessing equipment, in particular to an automatic foil sample packaging mechanism and a sample packaging device. Background Art

[0002] Carbon and hydrogen are the main components of organic matter in coal. Together with oxygen, they account for more than 95% of the total organic matter in coal. Nitrogen is the only element in coal that exists completely in organic form. Therefore, understanding the carbon, hydrogen and nitrogen content in coal is of great significance for understanding the properties of coal, checking the test results of other indicators, and estimating indicators such as heat, materials and pollutant emissions during the application of coal.

[0003] The carbon, hydrogen and nitrogen content in coal is detected in a special closed detection environment in a dedicated detection instrument. In the related technology, before the coal sample is tested, a certain mass of coal sample needs to be placed in an ultra-thin tin foil cup, and then the coal sample is manually wrapped. When wrapping the coal sample, all the air inside the tin foil cup should be exhausted, and the tin foil cup should not be loose, sweat stains should not be left, and the size and shape should be relatively consistent, otherwise it will affect the test results. Therefore, the packaging efficiency is extremely low, and the qualified rate of packaging is also affected by factors such as the worker's proficiency, the cleanliness of hands or gloves, and the mental state, which greatly increases the mental and physical burden on the staff.

[0004] At present, coal quality analysis is beginning to develop towards intelligence. Although there are some fully automatic sampling devices, their operational stability and reliability are difficult to guarantee. Therefore, how to improve the efficiency and stability of the sampling devices is an important issue that needs to be solved urgently. Utility Model Content

[0005] The utility model provides an automatic foil film sample packaging mechanism and a sample packaging device, which are used to solve the defect that the stability and reliability of the operation of the sample packaging device in the prior art are difficult to ensure, and have the advantages of high efficiency and stable and reliable operation.

[0006] The utility model provides an automatic foil film sample packaging mechanism, comprising a mechanism body, a driving disc and a driving shaft.

[0007] The driving disk is rotatably connected to the main body of the mechanism; a plurality of clamping blocks are provided, and the plurality of clamping blocks are arranged in an annular structure around the rotation axis of the driving disk, and the inner side of the annular structure forms a sample packaging space; a strip-shaped driving hole is provided on the clamping block, and one end of the driving hole is relatively close to the center of the annular structure; the driving shaft is connected to the driving disk and can rotate around the rotation axis as the driving disk rotates; the driving shaft is inserted into the driving hole, and the driving shaft can slide and rotate relative to the driving hole, so as to drive the clamping block to swing in a direction close to or away from the center of the circle when the driving disk rotates.

[0008] According to an automatic foil film packaging mechanism provided by the utility model, it also includes a limiting shaft; a strip-shaped limiting hole is arranged on the clamping block, one end of the limiting hole is relatively close to the center of the circle, and the angle between the driving hole and the limiting hole is an acute angle; the limiting shaft is passed through the limiting hole and the end portion is fixedly connected to the mechanism body, and the clamping block can slide and rotate relative to the limiting shaft.

[0009] According to an automatic foil film packaging mechanism provided by the utility model, an arc-shaped avoidance hole is provided on the driving disk, and the center of the avoidance hole is located on the rotation axis of the driving disk; the limiting shaft passes through the avoidance hole and is fixedly connected to the mechanism body.

[0010] According to an automatic foil film sample packaging mechanism provided by the utility model, the extension line of the driving hole passes through the center of the annular structure.

[0011] According to the utility model, an automatic foil film packaging mechanism is provided, which also includes an elastic ring sleeved outside the annular structure, which is used to apply elastic force to the plurality of clamping blocks so as to converge toward the center of the circle.

[0012] According to an automatic foil film sample packaging mechanism provided by the utility model, a bayonet is provided on the clamping block, and the elastic ring is nested in the bayonet.

[0013] According to an automatic foil film packaging mechanism provided by the utility model, the clamping block includes adjacent first and second inclined surfaces, the first inclined surface intersects with the second inclined surface to form a vertex angle, the first inclined surfaces and the second inclined surfaces of adjacent clamping blocks fit together, and the sum of the vertex angles of multiple clamping blocks is 360 degrees.

[0014] According to an automatic foil film packaging mechanism provided by the utility model, a notch is arranged on the top corner of the clamping block, and the notch penetrates the bottom side of the top corner along the central axis direction of the annular structure.

[0015] According to an automatic foil film sample packaging mechanism provided by the utility model, a sample inlet and a sample outlet are provided on the mechanism body, and the sample packaging space is located between the sample inlet and the sample outlet; a through hole is provided on the driving disk, and the sample inlet, the sample outlet and the through hole are coaxial with the rotation axis of the driving disk.

[0016] According to an automatic foil film sample packaging mechanism provided by the utility model, the sample outlet is connected with a sample drop tube, and the sample drop tube is used for docking with other equipment.

[0017] According to an automatic foil film sample packaging mechanism provided by the utility model, the mechanism body includes a fixed disk and a limiting sleeve, the fixed disk and the limiting sleeve are combined to form a shell-like structure with an inner cavity, the driving disk, the clamping block and the driving shaft are all arranged in the inner cavity; the sample inlet is arranged on the limiting sleeve, the sample outlet is arranged on the fixed disk, and the end of the limiting shaft is fixedly connected to the fixed disk.

[0018] According to an automatic foil film packaging mechanism provided by the utility model, the limiting sleeve and the fixed disk are matched through a stopper.

[0019] According to an automatic foil film packaging mechanism provided by the utility model, an annular embedding groove is formed between the fixed disk and the limiting sleeve, and the edge of the driving disk can be slidably embedded in the embedding groove.

[0020] The utility model also provides a sample packaging device, comprising any one of the automatic foil film sample packaging mechanisms described above; and also comprising a rotating drive member for driving the rotating disk of the automatic foil film sample packaging mechanism to rotate.

[0021] According to the sample packaging device provided by the utility model, the rotating driving component includes a linear driving element, a driving rod, a driving handle and a driving pin; the driving rod is fixedly connected to the output end of the linear driving element, and a driving waist hole is provided on the driving handle, and the extension direction of the driving waist hole is set at an angle to the driving direction of the linear driving element; one end of the driving handle is fixedly connected to the side of the driving disk, and the driving pin passes through the other end of the driving handle and the driving waist hole on the driving rod in sequence, and the driving pin can rotate and slide relative to the driving waist hole.

[0022] The utility model provides an automatic foil sample packaging mechanism and a sample packaging device. When packaging samples, a tin foil cup loaded with a certain mass of sample is placed in a sample packaging space surrounded by a plurality of clamping blocks. The driving disk rotates, and the driving shaft performs a circular motion around the rotating axis of the driving disk. Under the constraint of the strip-shaped driving hole, the clamping block rotates driven by the driving shaft on the one hand, and slides along the extending direction of the driving hole on the other hand, so that the clamping block swings toward or away from the center of the annular structure. Under the synchronous drive of the driving disk, the plurality of clamping blocks simultaneously gather toward the center of the annular structure or disperse away from the center of the annular structure, so that the sample packaging is carried out smoothly. The sample space switches between expansion and contraction. When the sample wrapping space contracts, multiple clamps squeeze the tin foil cup to wrap the sample. After the sample wrapping is completed, the sample wrapping space expands to facilitate sample removal. Compared with the related art, since the drive shaft is fixedly connected to the drive disk, the drive shaft has only one degree of freedom in one direction, that is, it rotates around the rotation axis of the drive disk. The motion trajectory is simple and stable. The force of the drive shaft is directly applied to the clamp. The clamp realizes the movement of a specific trajectory under the constraint of its own driving hole, making the movement of the clamp more stable and smooth, thereby effectively improving the working efficiency, stability and reliability of the mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 It is one of the structural schematic diagrams of the sample packaging device provided in the embodiment of the utility model.

[0025] Figure 2 yes Figure 1 Cross-section along the AA direction.

[0026] Figure 3 This is the second structural schematic diagram of the sample packaging device provided in the embodiment of the utility model.

[0027] Figure 4 yes Figure 3 Cross-section along the BB direction.

[0028] Figure 5 This is one of the structural schematic diagrams of the clamping block provided in the embodiment of the utility model.

[0029] Figure 6 This is the second structural schematic diagram of the clamping block provided in the embodiment of the utility model.

[0030] Figure 7This is one of the structural schematic diagrams of the drive disk provided in the embodiment of the utility model.

[0031] Figure 8 This is the second structural schematic diagram of the drive disk provided in the embodiment of the utility model.

[0032] Fig. 9 This is one of the structural schematic diagrams of the fixed disk provided in the embodiment of the utility model.

[0033] Fig.10 This is the second structural schematic diagram of the fixed disk provided in the embodiment of the utility model.

[0034] Fig.11 This is one of the structural schematic diagrams of the limiting sleeve provided in the embodiment of the utility model.

[0035] Fig.12 This is the second structural schematic diagram of the limiting sleeve provided in the embodiment of the utility model.

[0036] Reference numerals:

[0037] 1. Mechanism body; 10. Fixed plate; 11. Limit sleeve; 2. Driving plate; 21. Avoidance hole; 3. Clamp block; 30. Driving hole; 31. Limit hole; 32. First inclined surface; 33. Second inclined surface; 34. Bayonet; 35. Notch; 4. Driving shaft; 5. Limit shaft; 6. Elastic ring; 7. Sample drop tube; 8. Rotary driving part; 80. Linear driving element; 81. Driving rod; 810. Driving waist hole; 82. Driving handle; 83. Driving pin; 9. Tin foil cup. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely in conjunction with the drawings in the utility model. Obviously, the described embodiments are 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.

[0039] In order to facilitate the understanding of the automatic foil sample packaging mechanism and sample packaging device provided by the utility model, its application background is first explained. Carbon, hydrogen and nitrogen are the main components of organic matter in coal. Knowing the carbon, hydrogen and nitrogen content in coal is of great significance for understanding the properties of coal, verifying the test results of other indicators, and estimating indicators such as heat, materials and pollutant emissions during the application of coal.

[0040] At present, it is generally necessary to use special element detection instruments in a closed environment to detect the carbon, hydrogen and nitrogen contents in coal. Before the coal sample is tested, a certain mass of coal sample needs to be placed in a tin foil cup and then wrapped manually. In order to ensure the accuracy of the test, the sample packaging requirements are high, resulting in a low pass rate, which greatly increases the mental and physical burden on the staff.

[0041] At present, coal quality analysis begins to develop towards intelligence, and there are also some fully automatic sample packaging devices in related technologies, which generally include: a turntable with a waist-shaped hole, a drive shaft passing through the waist-shaped hole, and a clamping block connected to the drive shaft. The turntable rotates to make the drive shaft slide in the waist-shaped hole, thereby driving multiple clamping blocks to converge toward the center or disperse to the outside to achieve sample packaging.

[0042] However, it was found in actual applications that when the sample packaging device with the above structure is used to package samples, the clamping block sometimes gets stuck during movement. After research, it was found that in the sample packaging device with the above structure, the driving shaft has multi-directional degrees of freedom. It needs to rotate along the circumferential direction, slide in the waist-shaped hole, and rotate relative to the clamping block to drive the clamping block to move. The complex motion trajectory of the driving shaft is an important factor that makes it difficult for the clamping block to move stably, making it difficult to ensure the stability and reliability of the device operation. Therefore, how to improve the efficiency and stability of the sample packaging device operation is an important issue that needs to be solved urgently.

[0043] Based on the above problems and findings, the utility model provides an automatic foil sample packaging mechanism and a sample packaging device, which have the advantages of high efficiency and stable and reliable operation.

[0044] Combine the following Figure 1-Figure 12 The utility model describes an automatic foil film sample packaging mechanism and a sample packaging device.

[0045] Reference Figures 1 to 4 , an automatic foil film packaging mechanism, comprising a mechanism body 1, a driving disk 2, a clamping block 3 and a driving shaft 4; wherein the driving disk 2 is rotatably connected to the mechanism body 1; a plurality of clamping blocks 3 are provided, and the plurality of clamping blocks 3 are arranged in an annular structure around the rotation axis of the driving disk 2, the inner side of the annular structure forms a sample packaging space, and a strip-shaped driving hole 30 is provided on the clamping block 3, one end of the driving hole 30 is relatively close to the center of the annular structure; the driving shaft 4 is connected to the driving disk 2 and can rotate around the rotation axis of the driving disk 2 as the driving disk 2 rotates, the driving shaft 4 is inserted in the driving hole 30, the driving shaft 4 can slide and rotate relative to the driving hole 30, and is used for driving the clamping block 3 to swing close to or away from the center of the annular structure when the driving disk 2 rotates, so that the plurality of clamping blocks 3 are gathered toward the center of the annular structure or dispersed away from the center of the annular structure, and the sample packaging space switches between expansion and contraction accordingly to achieve sample packaging.

[0046] In a specific application scenario, when packaging samples, a tin foil cup 9 loaded with a certain mass of sample is placed in a packaging space surrounded by multiple clamps 3, the driving disk 2 rotates, and the driving shaft 4 makes a circular motion around the rotation axis of the driving disk 2. Under the constraint of the strip driving hole 30, the clamp 3 rotates on the one hand under the drive of the driving shaft 4, and slides along the extension direction of the driving hole 30 on the other hand, so that the clamp 3 swings toward or away from the center of the annular structure. Under the synchronous drive of the driving disk 2, multiple clamps 3 simultaneously converge toward the center of the annular structure or disperse away from the center of the annular structure, so that the packaging space is Switch between expansion and contraction. When the sample wrapping space shrinks, multiple clamping blocks 3 squeeze the tin foil cup 9 to wrap the sample. After the sample wrapping is completed, the sample wrapping space expands to facilitate sample removal. Compared with the related art, since the drive shaft 4 is fixedly connected to the drive disk 2, the drive shaft 4 has only one degree of freedom in one direction, that is, it rotates around the rotation axis of the drive disk 2. The motion trajectory is simple and stable. The force of the drive shaft 4 is directly applied to the clamping block 3. The clamping block 3 realizes the movement of a specific trajectory under the constraint of its own driving hole 30, so that the movement of the clamping block 3 is more stable and smooth, thereby effectively improving the working efficiency, stability and reliability of the mechanism.

[0047] In a specific embodiment of the utility model, the mechanism body 1 is used to provide installation positions for various components, constituting the support of the entire sample packaging mechanism, and the whole is formed into a shell-like structure with an inner cavity, and the drive disk 2, the clamping block 3 and the drive shaft 4 are all arranged in the inner cavity of the mechanism body 1; wherein the drive disk 2 is rotatably connected to the bottom of the inner cavity of the mechanism body 1, and the annular structure formed by multiple clamping blocks 3 is located above the drive disk 2, for example, can be arranged on the upper surface of the drive disk 2.

[0048] The bottom end of the driving shaft 4 is connected to the driving disk 2. The two can be connected in a non-detachable manner such as welding, or in a detachable manner. Based on actual needs and application scenarios, the above connection methods can be flexibly selected. In this embodiment, a fixing hole is provided on the driving disk 2 at a position corresponding to the driving shaft 4, and the driving shaft 4 is coaxially inserted into the fixing hole.

[0049] The upper side of the driving shaft 4 is inserted into the driving hole 30. The driving shaft 4 can slide and rotate relative to the driving hole 30, so that the clamping block 3 can slide and rotate relative to the driving shaft 4. Since one end of the driving hole 30 is relatively close to the center of the annular structure and the other end is relatively far away from the center of the annular structure, when the driving shaft 4 slides relative to the driving hole 30, the clamping block 3 will gradually approach or move away from the center of the annular structure; various parameters of the driving hole 30, such as length, width, extension direction and extension angle, and its opening position on the clamping block 3, can be designed according to actual needs, as long as it can drive the clamping block 3 to move along a predetermined trajectory when the driving disk 2 rotates. In this embodiment, the driving hole 30 is opened on one side of the clamping block 3, and its extension line passes through the center of the annular structure surrounded by multiple clamping blocks 3, that is, the extension lines of the driving holes 30 on multiple clamping blocks 3 are compared with the center of the annular structure.

[0050] In order to further improve the stability of the movement of the clamping block 3, in a specific embodiment of the present invention, referring to Figures 1 to 8 The automatic foil packaging mechanism also includes a limiting shaft 5; a strip-shaped limiting hole 31 is provided on the clamping block 3, one end of which is relatively close to the center of the annular structure, and the angle between the driving hole 30 and the limiting hole 31 is an acute angle; the limiting shaft 5 is passed through the limiting hole 31 and the end is fixedly connected to the mechanism body 1, and the clamping block 3 can slide and rotate relative to the limiting shaft 5. In this way, the limiting shaft 5 can cooperate with the driving shaft 4 to fix the clamping block 3, and in the process of the driving shaft 4 driving the clamping block 3 to move, the clamping block 3 can slide and rotate relative to the limiting shaft 5 in the limiting hole 31, and the limiting shaft 5 and the limiting hole 31 that cooperate with each other can constrain and guide the movement of the clamping block 3, ensuring the stability and smoothness of the movement of the clamping block 3.

[0051] The upper end of the limiting shaft 5 can be fixed to the mechanism body 1, the lower end can be fixed to the mechanism body 1, or both ends can be fixed to the mechanism body 1, as long as the movement of the clamping block 3 can be constrained and guided. The different connection positions of the limiting shaft 5 and the mechanism body 1 may lead to different structures of the driving disk 2. For example, when the lower end of the limiting shaft 5 is connected to the mechanism body 1, it needs to pass through the driving disk 2. In order to avoid interference with the rotation of the driving disk 2, an arc-shaped avoidance hole 21 is provided on the driving disk 2. The center of the avoidance hole 21 is located on the rotation axis of the driving disk 2. The lower end of the limiting shaft 5 is fixedly connected to the mechanism body 1 after passing through the avoidance hole 21. In this way, when the driving disk 2 rotates, the limiting shaft 5 can move relatively in the avoidance hole 21. The avoidance hole 21 can provide a space for the limiting shaft 5 to avoid interference between the limiting shaft 5 and the driving disk 2. The specific connection method between the limiting shaft 5 and the mechanism body 1 can be selected according to actual needs. For example, it can be connected in a non-detachable manner such as welding, or it can be connected in a detachable manner.

[0052] Similarly, various parameters of the limiting hole 31, such as length, width, extension direction and extension angle, and its opening position on the clamp block 3, can be designed according to actual needs, as long as the movement of the clamp block 3 can be limited and guided when the drive disk 2 rotates.

[0053] In actual work, the driving disk 2 rotates, and the driving force is transmitted to each clamping block 3 through the driving shaft 4. The clamping block 3 moves along a predetermined trajectory under the constraint of the driving hole 30. The mutually cooperating limiting shaft 5 and limiting hole 31 can limit and guide the movement of the clamping block 3, so that multiple clamping blocks 3 can converge toward the center of the annular structure or disperse away from the center of the annular structure, thereby expanding or contracting the sample packaging space. The specific structure of the clamping block 3 will be described in detail below with reference to the accompanying drawings.

[0054] Reference Figure 5 to Figure 6 The clamp block 3 is prismatic as a whole, and includes at least adjacent first inclined surfaces 32 and second inclined surfaces 33. The shapes of the first inclined surfaces 32 and second inclined surfaces 33 match each other, and the first inclined surfaces 32 and second inclined surfaces 33 of adjacent clamp blocks 3 fit each other, and the first inclined surfaces 32 and second inclined surfaces 33 intersect to form a vertex angle, and the sum of the vertex angles of multiple clamp blocks 3 is 360 degrees. This arrangement can ensure that the sample packing space can be completely closed when packing the sample.

[0055] Theoretically, the number of clamping blocks 3 is a divisor of 360 and is at least three. Based on the number of clamping blocks 3, the angle of the vertex will change accordingly. For example, when there are three clamping blocks 3, the vertex angle is 120 degrees, when there are six clamping blocks 3, the vertex angle is 60 degrees, and so on. However, in actual work, it is necessary to comprehensively consider multiple factors such as cost, manufacturing process, and the impact of the number of clamping blocks 3 on the stability of the mechanism operation to select an appropriate number of clamping blocks 3. In this embodiment, there are 6 clamping blocks 3, and the vertex angle of each clamping block 3 is 60 degrees.

[0056] It is understandable that the clamp block 3 includes but is not limited to the structures or shapes listed above, and clamp blocks 3 with other structures or shapes can also be applied as long as they can realize the opening or closing of the sample space.

[0057] In a specific embodiment of the present invention, referring to Figures 1 to 6 The outer cover of the annular structure surrounded by multiple clamping blocks 3 is provided with an elastic ring 6, which is used to apply elastic force toward the center of the circle to the multiple clamping blocks 3. In this way, the first inclined surfaces 32 and the second inclined surfaces 33 of adjacent clamping blocks 3 can be closely attached to each other, making the sample packaging more stable and reliable and less prone to sample clamping.

[0058] The specific material of the elastic ring 6 can be selected according to actual needs, as long as it can meet the required elastic force requirements. A bayonet 34 is provided on the other side of the clamp block 3 relative to the top angle. When multiple clamp blocks 3 are spliced ​​together, the bayonet 34 on the multiple clamp blocks 3 are surrounded to form an annular installation space, and the elastic block is nested in the bayonet 34. In this way, the installation of the elastic ring 6 can be facilitated and the stability of the elastic ring 6 outside the annular structure can be improved.

[0059] In a specific embodiment of the present invention, referring to Figures 1 to 6 A notch 35 is provided on the top corner of the clamping block 3, and the notch 35 passes through the bottom side of the top corner along the central axis direction of the annular structure. In this way, when the multiple clamping blocks 3 are completely closed, the notches 35 on the multiple clamping blocks 3 can be combined to form a accommodating space for accommodating the tin foil cup 9 after the sample is packaged, thereby avoiding damage to the tin foil caused by excessive squeezing.

[0060] In a specific embodiment of the present invention, referring to Figures 1 to 8 A sample inlet is provided on the top of the mechanism body 1, a sample outlet is provided on the bottom, and the sample packaging space is located between the sample inlet and the sample outlet; a through hole is provided on the driving disk 2, and the sample inlet, the sample outlet and the through hole on the driving disk 2 are coaxial with the rotation axis of the driving disk 2.

[0061] In actual work, the staff puts the tin foil cup 9 containing the sample into the sample packaging space through the sample inlet, and then drives the disk 2 to rotate the driving clamp 3 to move toward the center to complete the sample packaging. After the sample packaging is completed, the driving disk 2 rotates in the direction to drive the clamp 3 to disperse away from the center. After the sample packaging is completed, the sample passes through the through hole on the driving disk 2 and the sample outlet.

[0062] In a specific embodiment of the utility model, a sample drop tube 7 is connected to the sample outlet, and the sample drop tube 7 is used to directly connect with the sample transfer mechanism, the detection instrument or the temporary storage station.

[0063] In practical applications, the mechanism body 1 can provide installation positions for various components and constitute the support of the entire sample packaging mechanism. Its specific structure can be flexibly configured according to actual needs. Figures 1 to 4 , Figures 9 to 12 The mechanism body 1 includes a fixed disk 10 and a limiting sleeve 11; wherein the fixed disk 10 constitutes the bottom of the mechanism body 1, the limiting sleeve 11 is fixedly connected to the fixed disk 10 and encloses the fixed disk 10 to form a shell-like structure with an inner cavity, the sample inlet is opened on the limiting sleeve 11, the sample outlet is opened on the fixed disk 10, and the limiting shaft 5 passes through the driving disk 2 and is fixedly connected to the fixed disk 10.

[0064] In a specific embodiment of the present invention, the fixing plate 10 and the limiting sleeve 11 cooperate with each other through the stopper to achieve the purpose of precise positioning.

[0065] In a specific embodiment of the utility model, an annular embedding groove is formed between the fixed disk 10 and the limiting sleeve 11, the driving disk 2 is coaxial with the fixed disk 10 and the bottom abuts against the fixed disk 10, and the edge of the driving disk 2 can be slidably embedded in the embedding groove. In this way, the driving disk 2 can be controlled by dimensional tolerance to rotate coaxially in the mechanism body 1 without shaking.

[0066] In a specific embodiment of the utility model, a structural member for reducing friction can be arranged between relatively moving parts to improve the smoothness of the operation of the sample packaging mechanism.

[0067] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention can be combined with each other.

[0068] The sample packaging device provided by the present invention is described below. The sample packaging device described below and the automatic foil sample packaging mechanism described above can be referenced to each other.

[0069] Reference Figures 1 to 4 A sample packaging device includes the above-mentioned automatic foil film sample packaging mechanism, and also includes a rotating drive member 8 for driving the driving disk 2 of the automatic foil film sample packaging mechanism to rotate.

[0070] The rotary drive member 8 includes a linear drive element 80, a drive rod 81, a drive handle 82 and a drive pin 83; wherein the drive rod 81 is fixedly connected to the output end of the linear drive element 80, and a drive waist hole 810 is provided on the drive handle 82, and the extension direction of the drive waist hole 810 is set at an angle to the driving direction of the linear drive element 80; one end of the drive handle 82 is fixedly connected to the side of the drive disk 2, and the drive pin 83 passes through the other end of the drive handle 82 and the drive waist hole 810 on the drive rod 81 in sequence to connect the two, and the drive pin 83 can rotate and slide relative to the drive waist hole 810.

[0071] In actual work, when the output end of the linear drive element 80 is extended and retracted, the drive rod 81 is driven to move, and the drive pin 83 rotates in the drive waist hole 810 and slides along the drive waist hole 810 to drive the drive handle 82 to rotate, thereby converting the linear drive of the linear drive element 80 into a rotational drive, thereby driving the drive disk 2.

[0072] Specifically, the linear drive element 80 includes but is not limited to any form of linear drive components such as a pneumatic cylinder, an oil cylinder, and an electric push rod.

[0073] Of course, the rotating drive component 8 includes but is not limited to the structures or forms listed above. Any rotating drive component 8 with other structures or forms that can drive the driving disk 2 to rotate can be applied. For example, the linear driving element 80 can be connected to the driving disk 2 by using other forms of connecting rod structures, or directly use a rotating mechanism to directly drive the driving disk 2 to rotate.

[0074] The novelty of the utility model is that when packing samples, a tin foil cup 9 loaded with a certain mass of sample is placed in a packing space surrounded by a plurality of clamps 3, the driving disk 2 rotates, and the driving shaft 4 makes a circular motion around the rotation axis of the driving disk 2. Under the constraint of the strip-shaped driving hole 30, the clamp 3 rotates driven by the driving shaft 4 on the one hand, and slides along the extension direction of the driving hole 30 on the other hand, so that the clamp 3 swings toward or away from the center of the annular structure. Under the synchronous drive of the driving disk 2, the plurality of clamps 3 simultaneously converge toward the center of the annular structure or disperse away from the center of the annular structure, so that the packing space is Switch between expansion and contraction. When the sample wrapping space shrinks, multiple clamping blocks 3 squeeze the tin foil cup 9 to wrap the sample. After the sample wrapping is completed, the sample wrapping space expands to facilitate sample removal. Compared with the related art, since the drive shaft 4 is fixedly connected to the drive disk 2, the drive shaft 4 has only one degree of freedom in one direction, that is, it rotates around the rotation axis of the drive disk 2. The motion trajectory is simple and stable. The force of the drive shaft 4 is directly applied to the clamping block 3. The clamping block 3 realizes the movement of a specific trajectory under the constraint of its own driving hole 30, so that the movement of the clamping block 3 is more stable and smooth, thereby effectively improving the working efficiency, stability and reliability of the mechanism.

[0075] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. An automatic foil film packaging mechanism, characterized in that: include: Institutional entity (1); A driving disk (2) rotatably connected to the mechanism body (1); A plurality of clamping blocks (3) are provided, wherein the plurality of clamping blocks (3) are arranged around the rotation axis of the driving disk (2) to form an annular structure, and the inner side of the annular structure forms a sample-wrapping space; a strip-shaped driving hole (30) is provided on the clamping block (3), and one end of the driving hole (30) is relatively close to the center of the annular structure; A drive shaft (4) connected to the drive disc (2) and capable of rotating around the rotation axis as the drive disc (2) rotates; The drive shaft (4) is inserted into the drive hole (30), and the drive shaft (4) can slide and rotate relative to the drive hole (30), and is used to drive the clamping block (3) to swing in a direction close to or away from the center of the circle when the drive disk (2) rotates.

2. The automatic foil film packaging mechanism according to claim 1, characterized in that: Also includes a limiting shaft (5); The clamping block (3) is provided with a strip-shaped limiting hole (31), one end of the limiting hole (31) is relatively close to the center of the circle, and the angle between the driving hole (30) and the limiting hole (31) is an acute angle; The limiting shaft (5) is inserted into the limiting hole (31) and the end portion is fixedly connected to the mechanism body (1); the clamping block (3) can slide and rotate relative to the limiting shaft (5).

3. The automatic foil film packaging mechanism according to claim 2, characterized in that: The driving disk (2) is provided with an arc-shaped avoidance hole (21), and the center of the avoidance hole (21) is located on the rotation axis of the driving disk (2); The limiting shaft (5) passes through the avoidance hole (21) and is fixedly connected to the mechanism body (1).

4. The automatic foil film packaging mechanism according to claim 1, characterized in that: An extension line of the driving hole (30) passes through the center of the annular structure.

5. The automatic foil film packaging mechanism according to claim 1, characterized in that: It also comprises an elastic ring (6) sleeved outside the annular structure, used for applying elastic force to the plurality of clamping blocks (3) so as to converge toward the center of the circle.

6. The automatic foil film packaging mechanism according to claim 1, characterized in that: The clamping block (3) comprises a first inclined surface (32) and a second inclined surface (33) which are adjacent to each other, and the first inclined surface (32) and the second inclined surface (33) intersect to form a vertex angle; The first inclined surfaces (32) and the second inclined surfaces (33) of adjacent clamping blocks (3) fit each other, and the sum of the top angles of the plurality of clamping blocks (3) is 360 degrees.

7. The automatic foil film packaging mechanism according to claim 6, characterized in that: A notch (35) is provided on the top corner of the clamping block (3), and the notch (35) passes through the bottom side of the top corner along the central axis direction of the annular structure.

8. The automatic foil film packaging mechanism according to any one of claims 1 to 7, characterized in that: The mechanism body (1) is provided with a sample inlet and a sample outlet, and the sample packaging space is located between the sample inlet and the sample outlet; The driving disk (2) is provided with a through hole, and the sample inlet, the sample outlet and the through hole are coaxial with the rotation axis of the driving disk (2).

9. The automatic foil film packaging mechanism according to claim 8, characterized in that: The sample outlet is connected to a sample drop tube (7), and the sample drop tube (7) is used for docking with other equipment.

10. A sample packaging device, characterized in that: Comprising the automatic foil film packaging mechanism as described in any one of claims 1 to 9; It also includes a rotary drive member (8) for driving the rotary disk of the automatic foil film sample packaging mechanism to rotate.

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