Self-adaptive hopper sample feeding device

Abstract

The utility model relates to the technical field of tobacco detection, and provides a self-adaptive hopper sample feeding device which comprises a hopper, a driving wheel, a driving wheel and a positioning assembly. The hopper is provided with a storage space, and a feeding port is formed in the bottom of the storage space. A plurality of sample feeding grooves are formed in the outer wall of the driving wheel and are arranged at intervals in the circumferential direction of the driving wheel; the driving wheel is in transmission connection with the driving wheel; the positioning assembly comprises a sensing part and a positioning part, the positioning part is arranged on the driving wheel, the sensing part is arranged on one side of the driving wheel, and the positioning part is used for being matched with the sensing part for positioning so that the driving wheel can be switched to the position of the sample feeding groove of the preset specification, and the driving wheel can rotate in a reciprocating mode within the preset rotation range to achieve sample conveying. The feeding grooves of different specifications are arranged on the driving wheel and matched with the positioning assembly, so that automatic switching of the feeding grooves of different specifications can be achieved, samples are automatically conveyed after switching, the labor intensity of workers is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tobacco detection, in particular to an adaptive hopper sample feeding device. Background Art

[0002] During the cigarette production process, samples must be tested to determine if they meet quality standards. Conventional testing equipment commonly uses a roller hopper with a manually switchable feed chute. Switching requires either flipping the chute over and reinstalling it to accommodate samples of varying diameters, or adding accessories. This reduces efficiency and increases workload for operators.

[0003] When using a hopper to deliver samples of different specifications, it is necessary to frequently switch the coarse and fine feeding slots of the hopper, which is cumbersome to operate and significantly reduces convenience. If the feeding slot is not switched correctly, it will cause the sample to be squeezed and damaged, affecting the test results. Utility Model Content

[0004] The utility model provides an adaptive hopper sample feeding device, which is used to solve the defects of the prior art in that the switching operation of feeding troughs of different specifications is complicated and the working efficiency is low.

[0005] The utility model provides an adaptive hopper sample feeding device, comprising: a hopper, a driving wheel, a driving wheel and a positioning assembly; the hopper defines a storage space for storing samples, and a feeding port is formed at the bottom of the storage space; a plurality of sample feeding slots of different specifications are provided on the outer wall of the driving wheel, each of the sample feeding slots is arranged along the axial extension of the driving wheel, and a plurality of the sample feeding slots are arranged at intervals along the circumference of the driving wheel, the driving wheel is arranged below the feeding port, and part of the outer wall surface of the driving wheel is located in the feeding port; the driving wheel is transmission-connected to the driving wheel to drive the driving wheel to rotate; the positioning assembly comprises a sensing component and a positioning component, the positioning component is arranged on the driving wheel, the sensing component is arranged on one side of the driving wheel, and the positioning component is used to cooperate with the sensing component for positioning, so that the driving wheel switches to a sample feeding slot position of a preset specification, and the driving wheel rotates back and forth within a preset rotation range to realize sample transportation.

[0006] According to the adaptive hopper sample feeding device provided by the utility model, it also includes an anti-extrusion component, which is arranged between the driving wheel and the hopper. The anti-extrusion component is used to drive the sample to flip in the opposite direction of the driving wheel to prevent the sample from being squeezed into the sample feeding trough.

[0007] According to the adaptive hopper sample feeding device provided by the utility model, the anti-extrusion component includes a secondary pulley and a secondary shaft. The secondary pulley is arranged at one end of the secondary shaft. The secondary pulley is connected to the driving wheel through a belt drive to drive the secondary shaft and the driving wheel to rotate in the same direction.

[0008] According to the adaptive hopper sample feeding device provided by the utility model, it also includes a guide plate, and a cambered area is provided on one side of the guide plate. The cambered area cooperates with the outer wall surface of the driving wheel to form a sample outlet.

[0009] According to the adaptive hopper sample feeding device provided by the present invention, the hopper is arranged toward one side of the driving wheel, so that the storage space is located at an upper position on one side of the driving wheel.

[0010] According to the adaptive hopper sample feeding device provided by the utility model, the hopper includes a first baffle and a second baffle, the first baffle and the second baffle are arranged at intervals along the circumference of the driving wheel, the first baffle and the second baffle define the storage space, and a gap is provided between the bottoms of the first baffle and the second baffle to form the feeding port.

[0011] According to the adaptive hopper sample feeding device provided by the present invention, the first baffle and the second baffle are both inclined so that the distance between the first baffle and the second baffle gradually decreases in the direction approaching the driving wheel.

[0012] According to the adaptive hopper sample feeding device provided by the utility model, a main pulley is provided on one end of the driving wheel, and the main pulley is connected to the driving wheel through a belt transmission.

[0013] According to the adaptive hopper sample feeding device provided by the utility model, the positioning component includes a code disk, and the code disk is constructed as a semicircular disk structure.

[0014] According to the adaptive hopper sample feeding device provided by the utility model, the sensing component includes a beam-type photoelectric switch.

[0015] The utility model provides an adaptive hopper sample feeding device, which can realize automatic switching of feeding troughs of different specifications by setting feeding troughs of different specifications on the driving wheel and cooperating with the positioning component, and automatically transports samples after switching, thereby reducing manual labor intensity and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] 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.

[0017] Figure 1 It is a structural schematic diagram of the adaptive hopper sample feeding device provided by the utility model.

[0018] Reference numerals:

[0019] 1. Hopper; 11. First baffle; 12. Second baffle; 13. Storage space; 2. Driving wheel; 21. Sample feeding trough; 3. Driving wheel; 4. Positioning component; 41. Sensing component; 42. Positioning component; 5. Anti-extrusion component; 51. Secondary pulley; 52. Secondary shaft; 6. Guide plate; 7. Sample. DETAILED DESCRIPTION

[0020] To make the purpose, technical solutions, and advantages of the present invention more clear, the following will be combined with the accompanying drawings to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0022] In the description of the embodiments of the present invention, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

[0023] In the embodiments of the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above," "above," or "above" a second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below," "below," or "below" a second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is lower in level than the second feature.

[0024] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0025] During the cigarette production process, sampling and testing of cigarettes or filter rods is necessary to ensure product quality. In related technologies, sampling of cigarettes or filter rods of different specifications is performed manually by switching between different devices. This method increases the workload of operators, resulting in low efficiency and the possibility of sample damage due to improper operation, which can affect test results.

[0026] Regarding the problems in related technologies, such as Figure 1As shown, the utility model provides an adaptive hopper sample feeding device, including a hopper 1, a driving wheel 2, a driving wheel 3 and a positioning assembly 4; the hopper 1 defines a storage space 13 for storing samples 7, and a feeding port is formed at the bottom of the storage space 13; a plurality of sample feeding slots 21 of different specifications are provided on the outer wall of the driving wheel 2, each sample feeding slot 21 is arranged along the axial extension of the driving wheel 2, and a plurality of sample feeding slots 21 are arranged at intervals along the circumference of the driving wheel 2, the driving wheel 2 is arranged below the feeding port, and part of the outer wall surface of the driving wheel 2 is located in the feeding port; the driving wheel 3 is transmission-connected to the driving wheel 2 to drive the driving wheel 2 to rotate; the positioning assembly 4 includes a sensing component 41 and a positioning component 42, the positioning component 42 is provided on the driving wheel 2, the sensing component 41 is provided on one side of the driving wheel 2, and the positioning component 42 is used to cooperate with the sensing component 41 for positioning, so that the driving wheel 2 switches to the sample feeding slot 21 position of a preset specification, and the driving wheel 2 rotates back and forth within a preset rotation range to realize the transportation of the sample 7. Cigarettes or filter rods of different sizes have different diameters, and during the production process, sampling operations for cigarettes or filter rods of different sizes are often encountered, requiring the feeding device to switch and feed the samples. In this embodiment, the outer wall surface of the driving wheel 2 is provided with sample feeding slots 21 of different sizes. With the cooperation of the positioning assembly 4, the driving wheel 2 can be positioned, thereby enabling the switching of sample feeding slots 21 of different sizes and achieving continuous and efficient sample feeding of samples 7.

[0027] Specifically, it also includes a control system for signal processing and issuing control instructions. The control system is electrically connected to the positioning component 4. The control system is used to collect the position signal collected by the sensing component 41, so as to control the forward or reverse rotation of the driving wheel 3 to realize the transportation of the sample 7.

[0028] In this embodiment, the sample 7 can be any cylindrical sample 7, such as cigarettes, filter rods, etc. The feeding trough can accommodate cylindrical samples 7 of corresponding specifications, thereby realizing the transportation of the sample 7 under the drive of the driving wheel 2.

[0029] It is understood that during the sample 7 transport process, the primary function is to transfer the sample 7 located within the storage space 13 to a designated location. The cylindrical sample 7 is stacked in the storage space 13. Effectively achieving automatic retrieval and transfer of the sample 7 is key to achieving stable transfer of the sample 7. In this embodiment, the positioning assembly 4 enables the driving wheel 2 to reciprocate within a predetermined rotation range, thereby achieving stable transfer of the sample 7 within the storage space 13 and improving the efficiency and stability of sample 7 transport.

[0030] For example, if Figure 1As shown, two feeding troughs of different specifications are provided on the driving wheel 2, and the angle between the two feeding troughs is approximately 180 degrees. The diameter of one feeding trough is smaller than the diameter of the other feeding trough. For the sake of convenience, the feeding trough with the smaller diameter is called the small feeding trough, and the corresponding remaining feeding trough is called the large feeding trough. The small feeding trough is located on the side where the feeding port is located, so the small feeding trough is a working trough. When feeding, it includes a material taking process and a feeding process, wherein the material taking process is the process of the empty small feeding trough obtaining the material. The material taking process is as follows: the driving wheel 2 rotates clockwise, and the positioning component 42 follows the driving wheel 2 to rotate clockwise from the original position, so that the small feeding trough rotates to the baffle position close to the right side of the hopper 1 (that is, the second baffle 12 in the figure). At this time, the empty small feeding trough obtains the material and starts the feeding process. The feeding process is as follows: the positioning component 42 cooperates with the sensing component 41 to send a control signal, so that the driving wheel 2 reverses, that is, rotates counterclockwise (as Figure 1 The state shown is the state of counterclockwise feeding). During the counterclockwise rotation, the small feeding trough can obtain the sample 7 from the feeding port and rotate together. During the rotation, the small feeding trough gradually tilts downward, so that the sample 7 in the small feeding trough will fall under the action of gravity (such as Figure 1 The end position of the guide plate 6 is located in the middle of the sample 7, thereby completing the entire feeding process. Of course, during the feeding process, the positioning component 42 and the sensing component 41 will cooperate and trigger again, sending a control signal to cause the driving wheel 2 to reverse again, that is, rotate clockwise, and thus swing back and forth to achieve continuous feeding of the sample 7 and improve the feeding efficiency of the sample 7.

[0031] Furthermore, when it is necessary to transport a columnar sample 7 with a larger diameter, it is necessary to switch the large conveying trough to transport the sample 7. At this time, the system enters the switching mode and rotates clockwise by a preset angle so that the large feeding trough is located at the feeding port position. Then, the large feeding trough is rotated back and forth within a predetermined range through the aforementioned method, thereby realizing the switching of feeding troughs of different specifications and continuous transportation.

[0032] Of course, there can be multiple feeding grooves on the driving wheel 2. When there are multiple feeding grooves, the multiple feeding grooves can be evenly arranged on the outer peripheral wall of the driving wheel 2, so that it can be suitable for settings of more specifications and improve the practicality of the device.

[0033] In a specific embodiment, the sensing component 41 comprises a through-beam photoelectric switch, and the positioning component 42 comprises a code disk constructed in a semicircular disc-like structure. During operation, the through-beam photoelectric switch outputs opposite level signals when blocked and unblocked. This output, in conjunction with the disc, allows for different level signal outputs and enables switching between sample feed troughs 21 of varying specifications. Furthermore, by accurately controlling the forward and reverse rotation of the driving wheel 2, the feed trough is ensured to reciprocate between the top of the storage space and the outlet for the sample 7.

[0034] For example, if Figure 1 As shown, when the small sample feeding trough is used as the working trough, the through-beam photoelectric switch sends a control signal when the switch changes from unblocked to blocked. Specifically, initially, the driving wheel 3 drives the active wheel 2 and the code disk to rotate counterclockwise. When the through-beam photoelectric switch detects the semicircular code disk, that is, when the positioning switch changes from unblocked to blocked, it stops rotating. At this time, the adaptive hopper 1 is in its original position, and the small sample feeding trough is located just below the active wheel 2 at the sample 7 outlet. Subsequently, when the sample 7 is transported, it rotates back and forth within a predetermined range according to the aforementioned method, thereby achieving sample 7 transportation.

[0035] Accordingly, when the small sample feeding slot switches to the large sample feeding slot, the through-beam photoelectric switch switches to issuing a control signal when the switch changes from blocked to unblocked. Specifically, by rotating the driving wheel 2 clockwise, since it is in the control mode for the large sample feeding slot, the positioning component 42 can pass the through-beam photoelectric switch, ultimately placing the large sample feeding slot within the reciprocating sample feeding range. That is, initially, the driving wheel 2 rotates clockwise and stops when the blocked state changes to unblocked state. It then rotates counterclockwise until the through-beam photoelectric switch changes from blocked to unblocked. This is the original position of the large sample feeding slot, and the switch is successfully completed. Then the same strategy as mentioned above is adopted, and the driving wheel 2 rotates clockwise from the original position. When the large sample feeding trough is located at the lower right side of the hopper 1, the code disk and the opposing photoelectric switch cooperate to send a control signal to control its own driving wheel 2 to reverse, that is, rotate counterclockwise. During the counterclockwise rotation, the large sample feeding trough can obtain sample 7. When it rotates to the point where the opposing photoelectric switch cooperates with the code disk detection, that is, when the opposing photoelectric switch changes from blocking to unblocking, the large sample feeding trough is just at the sample 7 outlet position to achieve the output of sample 7, and then the above process is repeated until all samples 7 are transported.

[0036] According to one embodiment provided by the present invention, the adaptive hopper 1 sample feeding device further includes an anti-extrusion assembly 5, which is disposed between the driving wheel 2 and the hopper 1. The anti-extrusion assembly 5 is used to drive the sample 7 to flip in the opposite direction of the driving wheel 2 to prevent the sample 7 from being squeezed into the sample feeding trough 21. When the sample 7 is being transported, the reciprocating rotation of the driving wheel 2 enables the sample 7 to be transported. In this embodiment, the anti-extrusion assembly 5 can improve overall stability and work efficiency.

[0037] It is understandable that during the reciprocating rotation of the driving wheel 2 to transport the sample 7, there is a certain gap between the driving wheel 2 and the hopper 1. This gap ensures that the driving wheel 2 can rotate smoothly and can obtain and deliver the sample 7 through rotation. However, during the sample delivery trough 21 following the rotation and obtaining the sample 7, a force will be generated on the sample 7 stacked in the storage space 13, which can easily cause the sample 7 to squeeze into the sample delivery trough 21, thereby causing the device to get stuck. In this embodiment, the anti-extrusion component 5 is provided, so that a reverse force can be applied to the sample 7 during the rotation of the driving wheel 2, thereby preventing the sample 7 from squeezing into the sample delivery trough 21, thereby improving the stability of the device operation.

[0038] Specifically, when applying a reaction force to the sample 7, a rotating roller or other components can be set at the bottom of the feeding port, and the rotating roller and the driving wheel 2 can be rotated in the same direction, so as to apply a force in the opposite direction to the rotation direction of the driving wheel 2, thereby realizing that the sample 7 rotates in the direction opposite to the rotation direction of the driving wheel 2, avoiding the sample 7 from squeezing into the sample feeding slot 21 through the gap, thereby improving the stability and work efficiency of the equipment.

[0039] In a specific embodiment, the anti-extrusion assembly 5 includes a secondary pulley 51 and a secondary shaft 52. The secondary pulley 51 is located at one end of the secondary shaft 52 and is connected to the drive wheel 3 via a belt drive, driving the secondary shaft 52 to rotate in the same direction as the driving wheel 2. The belt drive enables the rotation of the secondary pulley 51, thereby driving the secondary shaft 52 to rotate accordingly. The secondary shaft 52 is located in the feed port, so that the secondary shaft 52 can exert a force on the sample 7, causing the sample 7 to roll in the opposite direction of the rotation of the driving wheel 2, thereby preventing the sample 7 from being counted into the sample feeding trough 21.

[0040] During the specific setting, the driving wheel 3 and the secondary pulley 51 are connected through a single-belt transmission, so that the driving wheel 3 can drive the secondary pulley 51 to rotate in the same direction, and the driving wheel 3 also drives the active wheel 2 to rotate in the same direction, thereby making the secondary pulley 51 rotate in the same direction as the active wheel 2. During the rotation of the secondary pulley 51, it drives the secondary shaft 52 to rotate, thereby generating friction with the sample 7, causing the sample 7 to roll in the opposite direction, preventing the sample 7 from squeezing into the feed trough, and improving the stability of the equipment operation.

[0041] In a specific embodiment, a primary pulley is provided at one end of the driving wheel 2, and the primary pulley is connected to the driving wheel 3 via a belt transmission. Similar to the above, a primary pulley is provided at one end of the driving wheel 2, and the primary pulley is connected to the driving wheel 3 via a single belt transmission, thereby causing the driving wheel 2 and the driving wheel 3 to rotate in the same direction.

[0042] It can be understood that the driving wheel 3 has two pulleys, and the pulleys have two belt grooves set at intervals, so that the driving wheel 3 can simultaneously drive the active wheel 2 and the secondary pulley 51 to rotate simultaneously, simplifying the driving structure and making the overall structure of the equipment more compact.

[0043] According to one embodiment of the present invention, the adaptive hopper 1 sample feeding device further includes a guide plate 6 having a curved surface area on one side thereof. The curved surface area cooperates with the outer wall of the driving wheel 2 to form an outlet for the sample 7. The guide plate 6 is located below the feeding port and cooperates with the outer wall of the driving wheel 2 to form a holding channel for the sample 7, which is then transported to a designated location via the guide plate 6.

[0044] It can be understood that after the driving wheel 2 obtains the sample 7, the sample 7 is between the arc surface area and the feeding groove of the driving wheel 2. The setting of the guide plate 6 can prevent the sample 7 groove from falling or detaching from the sample feeding groove 21 during the rotation process. By extending the guide plate 6 to the specified position, a sample outlet is formed between the end of the guide plate 6 and the driving wheel 2. The sample 7 can detach or fall when it rotates to the end of the guide plate 6 following the driving wheel 2, thereby realizing the transportation of the sample 7.

[0045] When setting specific Figure 1 As shown, the end of the guide plate 6 is located below the driving wheel 2, which allows the sample 7 in the sample feeding trough 21 to fall under the action of gravity or centrifugal force, thereby achieving the output of the sample 7. Of course, the extension length of the end of the guide plate 6 can be appropriately extended or shortened as needed during design. The top end of the guide plate 6 is located in the sample feeding port and below the anti-extrusion component 5, thereby forming the lowest area of the storage space 13 with the anti-extrusion component 5. The samples 7 are stacked in this area, and the anti-extrusion component 5 prevents the samples 7 from squeezing into the sample feeding trough 21, achieving stable operation.

[0046] According to one embodiment of the present invention, the hopper 1 is arranged to be offset from the driving wheel 2 so that the material storage space 13 is located at an upper position on one side of the driving wheel 2. When the hopper 1 is arranged, some methods can place the material head directly above the driving wheel 2 to achieve material delivery and transportation. In this embodiment, by setting the hopper 1 away from the direction directly opposite the driving wheel 2, so that the hopper 1 is located to the side thereof, it can better achieve material transportation and improve material transportation efficiency.

[0047] It can be immediately seen that when the hopper 1 is set to one side, a feeding port is formed between the bottom of the hopper 1 and the outer wall of the driving wheel 2. The feeding port has a low point and a high point, wherein the low point of the feeding port is provided with an anti-extrusion component 5, and the sample 7 can also be relatively concentrated at the low point position, thereby facilitating the acquisition of the sample 7 during the rotation of the driving wheel 2, and preventing the sample 7 from being squeezed into the sample feeding slot 21.

[0048] In the specific setting, the hopper 1 includes a first baffle 11 and a second baffle 12, and the first baffle 11 and the second baffle 12 are arranged at intervals along the circumference of the driving wheel 2. A storage space 13 is defined between the first baffle 11 and the second baffle 12, and a gap is provided between the bottoms of the first baffle 11 and the second baffle 12 to form a feeding port.

[0049] It will be appreciated that the driving wheel 2 in this embodiment has a certain extension length in the axial direction. In this embodiment, the first baffle 11 and the second baffle 12 are arranged along the extension direction of the driving wheel 2, so that a storage space 13 is formed between the two baffles and the outer wall of the driving wheel 2. The sample 7 is stored in this coarse material space. A gap is provided at the bottom of the first baffle 11 and the second baffle 12. This gap serves as a feed port, through which the sample 7 in the storage space 13 is discharged.

[0050] In a specific embodiment, there is a rotational gap between the bottom of the first baffle 11 and the bottom of the second baffle 12 and the outer wall surface of the driving wheel 2, and the rotational gap is smaller than the diameter of the sample 7. An anti-extrusion component 5 is provided in the rotational gap between the first baffle 11 and the outer wall surface of the driving wheel 2 to ensure stable operation of the equipment.

[0051] According to the specific embodiment provided by the present invention, the first baffle 11 and the second baffle 12 are both arranged at an angle so that the distance between the first baffle 11 and the second baffle 12 gradually decreases as it approaches the driving wheel 2. In other words, the storage space 13 forms a trapezoidal structure, which can improve the fluidity of the sample 7, prevent blockage at the feeding port, and improve the overall stability of the device.

[0052] It can be understood that, by the inclined setting, the storage space 13 is tilted as a whole and arranged above one side of the driving wheel 2. The storage space 13 is tilted as a whole and is roughly arranged in the radial direction of the driving wheel 2, such as Figure 1 As shown, the driving wheel 2 is located at the lower right side of the hopper 1, which is conducive to the discharge of materials in the hopper 1 and avoids blockage and the like.

[0053] Through the description of the above embodiments, those skilled in the art will clearly understand that each embodiment, through the provision of different-sized feed troughs on the driving wheel 2 and the cooperation with the positioning assembly 4, can achieve automatic switching of feed troughs of different sizes, and automatically transport the sample 7 after switching, thereby reducing manual labor intensity and improving work efficiency. Furthermore, the provision of the anti-extrusion assembly 5 can improve the stability of the equipment operation, prevent the sample 7 from squeezing into the sample feeding trough 21, and the risk of equipment jamming and sample 7 damage, thereby improving the accuracy of the test.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention 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 present invention.

Claims

1. An adaptive hopper sample feeding device, characterized in that: include: A hopper, wherein the hopper defines a storage space for storing the sample, and a feeding port is formed at the bottom of the storage space; A driving wheel, wherein a plurality of sample feeding grooves of different sizes are formed on the outer wall of the driving wheel, each of the sample feeding grooves is arranged along the axial direction of the driving wheel, and the plurality of sample feeding grooves are arranged at intervals along the circumference of the driving wheel, the driving wheel is arranged below the feeding port, and a portion of the outer wall surface of the driving wheel is located within the feeding port; A driving wheel, the driving wheel is in transmission connection with the driving wheel to drive the driving wheel to rotate; The positioning component includes a sensing component and a positioning component. The positioning component is arranged on the driving wheel, and the sensing component is arranged on one side of the driving wheel. The positioning component is used to cooperate with the sensing component for positioning so that the driving wheel can be switched to a sample delivery slot position of a preset specification, and the driving wheel can be rotated back and forth within a preset rotation range to realize sample delivery.

2. The adaptive hopper sample feeding device according to claim 1, characterized in that: It also includes an anti-extrusion component, which is arranged between the driving wheel and the hopper. The anti-extrusion component is used to drive the sample to flip in the opposite direction of the driving wheel to prevent the sample from being squeezed into the sample feeding trough.

3. The adaptive hopper sample feeding device according to claim 2, characterized in that: The anti-extrusion assembly includes a secondary pulley and a secondary shaft. The secondary pulley is arranged at one end of the secondary shaft. The secondary pulley is connected to the driving wheel through a belt transmission to drive the secondary shaft and the driving wheel to rotate in the same direction.

4. The adaptive hopper sample feeding device according to claim 2, characterized in that: It also includes a guide plate, one side of which is provided with a cambered area, and the cambered area cooperates with the outer wall surface of the driving wheel to form a sample outlet.

5. The adaptive hopper sample feeding device according to claim 1, characterized in that: The hopper is arranged toward one side of the driving wheel, so that the material storage space is located at an upper position on one side of the driving wheel.

6. The adaptive hopper sample feeding device according to claim 5, characterized in that: The hopper includes a first baffle and a second baffle, which are arranged at intervals along the circumference of the driving wheel. The first baffle and the second baffle define the storage space between them, and a gap is provided between the bottoms of the first baffle and the second baffle to form the feeding port.

7. The adaptive hopper sample feeding device according to claim 6, characterized in that: The first baffle and the second baffle are both tilted so that the distance between the first baffle and the second baffle gradually decreases in a direction approaching the driving wheel.

8. The adaptive hopper sample feeding device according to claim 1, characterized in that: A main pulley is provided on one end of the driving wheel, and the main pulley is connected to the driving wheel through a belt transmission.

9. The adaptive hopper sample feeding device according to claim 1, characterized in that: The positioning component includes a code disk, and the code disk is configured as a semicircular disk structure.

10. The adaptive hopper sample feeding device according to claim 9, characterized in that: The sensing component includes a beam-type photoelectric switch.

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