High-efficiency scraper device of automatic sampling machine

Abstract

The utility model provides a kind of high-efficiency scraper device of automatic sampling machine, it is specifically related to automatic sampling technical field, to solve the tip of plate when rotating with the surface of conveyor belt cannot keep the state of continuous resistance, there is certain gap, leading to the technical problem of insufficient sampling amount.The utility model includes the shell that is set in the top of conveyor belt and the opening is downward through mounting bracket, there is mounting block in the shell by the rotation of first motor drive, the both sides of mounting block are respectively fixedly connected with sector partition, scraper is slidably arranged between the inner side wall of two sector partitions, the top end of scraper is equipped with spring between mounting block.The recovery force of spring makes that scraper can keep with the top surface of conveyor belt when rotating at the bottom end of scraper, so as to scrape the material in the gap between conveyor belt and scraper together, avoid the problem of insufficient sampling amount, improve sampling efficiency.

Description

Technical Field

[0001] This utility model relates to the field of automatic sampling technology, and more specifically, to a high-efficiency scraper device for an automatic sampling machine. Background Technology

[0002] During the transport process of a belt conveyor, it is necessary to use an automatic sampler to sample the transported materials at regular intervals. The existing automatic sampler is set above the conveyor belt and includes two spaced sector-shaped partitions driven by a motor. A scraper is installed between the sector-shaped partitions. When sampling, the motor drives the sector-shaped partitions to make a circular motion. The two sector-shaped partitions separate a portion of the material on the conveyor belt to the inside of the sector-shaped partitions. Then the scraper pushes this portion of material from the side of the conveyor belt and it falls into the collection device.

[0003] However, since the existing scraper is just a single plate-shaped part that moves in a circular motion above the conveyor belt to scrape and push samples, but the cross-section of the conveyor belt is not circular, the tip of the scraper cannot maintain a continuous tight contact with the surface of the conveyor belt when it rotates, resulting in a certain gap and causing insufficient sampling. Utility Model Content

[0004] The purpose of this invention is to provide an efficient scraper device for an automatic sampling machine, which enables the tip of the scraper to remain in contact with the surface of the conveyor belt during rotation, thereby solving the problem of insufficient sampling volume and improving sampling efficiency.

[0005] The embodiments of this utility model are achieved through the following technical solutions:

[0006] An efficient scraper device for an automatic sampling machine includes a housing mounted above a conveyor belt with its opening facing downwards via a mounting frame. Inside the housing, a mounting block is rotated by a first motor. Fan-shaped partitions are fixedly connected to both sides of the mounting block. A scraper is slidably disposed between the inner sidewalls of the two fan-shaped partitions. A spring is provided between the top of the scraper and the mounting block.

[0007] In some embodiments, a downward-opening mounting groove is provided between the two sector-shaped partitions. The mounting groove is located near one side of the sector-shaped partition, and the length direction of the mounting groove is parallel to the side of the sector-shaped partition. The top end of the mounting groove is fixedly connected to the mounting block. The scraper is slidably sleeved inside the mounting groove, and the spring is provided between the top end of the scraper and the inner end face of the mounting groove.

[0008] In some embodiments, the scraper includes a connecting plate and a contact plate. The connecting plate is slidably sleeved inside the mounting groove, and a spring is provided between its top end and the inner end face of the mounting groove. The bottom end of the connecting plate is rotatably connected to the top end of the contact plate. An angle adjustment mechanism is provided between the connecting plate and the contact plate. The bottom end of the contact plate is in contact with the surface of the conveyor belt.

[0009] In some embodiments, the angle adjustment mechanism includes a connecting shaft fixedly disposed on the outside of the contact plate, the connecting shaft being coaxial with the bottom end of the connecting plate and the top end of the contact plate at a rotatable connection position; a worm gear is fixedly connected to the outer end of the connecting shaft, a worm is meshed on the worm gear, the worm is driven to rotate by a second motor, and the housing of the second motor is fixedly connected to the outer surface of the connecting plate through a fixing plate.

[0010] In some embodiments, a wear-resistant scraper block is detachably connected to the bottom of the contact plate.

[0011] In some embodiments, the angle adjustment mechanism is provided with a protective shell, which is fixedly connected to the side of the sector-shaped partition.

[0012] In some embodiments, the protective shell has an arc-shaped surface on its side.

[0013] In some embodiments, the bottom end of the protective shell is provided with a clearance opening, and bristles are connected to the inner side of the clearance opening.

[0014] The technical solution of this utility model embodiment has at least the following advantages and beneficial effects:

[0015] 1. This device uses the restoring force of the spring to ensure that the bottom of the scraper remains in contact with the top surface of the conveyor belt when the scraper rotates, thereby scraping away the material remaining in the gap between the conveyor belt and the scraper, avoiding the problem of insufficient sampling volume and improving sampling efficiency.

[0016] 2. This device can adjust the angle between the scraper contact plate and the conveyor belt through the angle adjustment mechanism, that is, adjust the sampling angle of the scraper. After adjusting to the corresponding sampling angle, sampling is carried out, so that the scraper can scrape the sample more evenly and stably. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the internal structure of an efficient scraper device for an automatic sampling machine provided in an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the internal structure of the fan-shaped partition provided in the embodiment of this utility model;

[0020] Figure 3 This is a schematic diagram of the angle adjustment mechanism provided in the embodiments of this utility model;

[0021] Figure 4 This is a schematic diagram of the outer structure of the fan-shaped partition provided in an embodiment of the present invention;

[0022] Figure 5 for Figure 1 A partial sectional view of cross section A in the middle.

[0023] Icons: 1. Mounting bracket; 2. Housing; 3. Mounting block; 4. Fan-shaped partition; 5. Spring; 6. Mounting slot; 7. Connecting plate; 8. Contact plate; 9. Connecting shaft; 10. Worm gear; 11. Worm; 12. Second motor; 13. Fixing plate; 14. Wear-resistant scraper block; 15. Protective shell; 16. Curved surface; 17. Clearance opening; 18. Brush bristles; 19. Conveyor belt. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0026] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0027] In the description of this utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" appear to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] Please see Figures 1-5 As shown, the main body of this embodiment is an automatic sampling machine high-efficiency scraper device, including a housing 2 set above the conveyor belt 19 with the opening facing downwards via a mounting frame 1. A mounting block 3 is driven to rotate inside the housing 2 by a first motor. Fan-shaped partitions 4 are fixedly connected to both sides of the mounting block 3. A scraper is slidably arranged between the inner sidewalls of the two fan-shaped partitions 4. A spring 5 is provided between the top of the scraper and the mounting block 3.

[0030] The restoring force of the spring 5 ensures that the bottom of the scraper remains in contact with the top surface of the conveyor belt 19 when the scraper rotates, thereby scraping away the material remaining in the gap between the conveyor belt 19 and the scraper, avoiding the problem of insufficient sampling volume and improving sampling efficiency.

[0031] In some embodiments, a downward-opening mounting groove 6 is provided between the two sector-shaped partitions 4. The mounting groove 6 is located near one side of the sector-shaped partition 4, and the length direction of the mounting groove 6 is parallel to the side of the sector-shaped partition 4. The top end of the mounting groove 6 is fixedly connected to the mounting block 3. The scraper is slidably sleeved inside the mounting groove 6. The spring 5 is provided between the top end of the scraper and the inner end face of the mounting groove 6.

[0032] The scraper is slidably disposed between the inner sidewalls by setting the mounting groove 6, and sufficient sampling space is formed between the fan-shaped partition 4, the scraper and the mounting groove 6.

[0033] In some embodiments, the scraper includes a connecting plate 7 and a contact plate 8. The connecting plate 7 is slidably sleeved inside the mounting groove 6 and the spring 5 is provided between its top end and the inner end face of the mounting groove 6. The bottom end of the connecting plate 7 is rotatably connected to the top end of the contact plate 8. An angle adjustment mechanism is provided between the connecting plate 7 and the contact plate 8. The bottom end of the contact plate 8 is in contact with the surface of the conveyor belt 19.

[0034] The angle adjustment mechanism enables the adjustment of the angle between the scraper contact plate 8 and the conveyor belt 19, that is, the sampling angle of the scraper is adjusted. After adjusting to the corresponding sampling angle, sampling is performed, so that the scraper can scrape the sample more evenly and stably.

[0035] In some embodiments, the angle adjustment mechanism includes a connecting shaft 9 fixedly disposed on the outside of the contact plate 8. The connecting shaft 9 is coaxial with the bottom end of the connecting plate 7 and the top end of the contact plate 8 at a rotatable connection position. A worm gear 10 is fixedly connected to the outer end of the connecting shaft 9. A worm 11 is meshed on the worm gear 10. The worm 11 is driven to rotate by a second motor 12. The housing of the second motor 12 is fixedly connected to the outer surface of the connecting plate 7 through a fixing plate 13.

[0036] The second motor 12 drives the worm gear 11 to rotate, which in turn drives the worm wheel 10 to rotate, thereby causing the contact plate 8 to rotate relative to the connecting plate 7, thus realizing the adjustment of the sampling angle. The worm gear 11 and worm wheel 10 mechanism has a large transmission ratio and self-locking properties, which enables precise angle adjustment and protects the second motor 12.

[0037] In some embodiments, the bottom of the contact plate 8 is detachably connected to a wear-resistant scraper block 14.

[0038] The wear-resistant material is made of high-hardness, high-wear-resistant ultra-high molecular weight polyethylene, which improves the wear resistance of the contact plate 8. The wear-resistant scraper block 14 can be replaced after a certain degree of wear, reducing maintenance costs.

[0039] In some embodiments, the angle adjustment mechanism is provided with a protective shell 15, which is fixedly connected to the side of the fan-shaped partition 4.

[0040] The protective shell 15 can protect the angle adjustment mechanism from material wear when the scraper rotates for sampling.

[0041] In some embodiments, the protective shell 15 has an arc surface 16 on its side.

[0042] The arc surface 16 can reduce wear between the protective shell 15 and the material, and facilitate the rotation sampling of the partition.

[0043] In some embodiments, the bottom end of the protective shell 15 is provided with a clearance opening 17, and the inner side of the clearance opening 17 is connected to a bristle 18.

[0044] The clearance opening 17 allows for the rotation of the contact plate 8, thereby increasing the adjustment range of the rotation angle of the contact plate 8.

[0045] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An efficient scraper device for an automatic sampling machine, comprising a housing (2) mounted above a conveyor belt (19) via a mounting frame (1) and with its opening facing downwards, wherein a mounting block (3) is rotated within the housing (2) by a first motor, and fan-shaped partitions (4) are fixedly connected to both sides of the mounting block (3), characterized in that, A scraper is slidably disposed between the inner sidewalls of the two fan-shaped partitions (4), and a spring (5) is provided between the top of the scraper and the mounting block (3).

2. The high-efficiency scraper device for an automatic sampling machine according to claim 1, characterized in that, An opening-down mounting groove (6) is provided between the two fan-shaped partitions (4). The mounting groove (6) is located near one side of the fan-shaped partition (4), and the length direction of the mounting groove (6) is parallel to the side of the fan-shaped partition (4). The top end of the mounting groove (6) is fixedly connected to the mounting block (3). The scraper is slidably sleeved inside the mounting groove (6). The spring (5) is provided between the top end of the scraper and the inner end face of the mounting groove (6).

3. The high-efficiency scraper device for an automatic sampling machine according to claim 2, characterized in that, The scraper includes a connecting plate (7) and a contact plate (8). The connecting plate (7) is slidably sleeved on the inner side of the mounting groove (6) and the spring (5) is provided between its top end and the inner end face of the mounting groove (6). The bottom end of the connecting plate (7) is rotatably connected to the top end of the contact plate (8). An angle adjustment mechanism is provided between the connecting plate (7) and the contact plate (8). The bottom end of the contact plate (8) is in contact with the surface of the conveyor belt (19).

4. The high-efficiency scraper device for an automatic sampling machine according to claim 3, characterized in that, The angle adjustment mechanism includes a connecting shaft (9) fixedly disposed on the outside of the contact plate (8). The connecting shaft (9) is coaxial with the bottom end of the connecting plate (7) and the top end of the contact plate (8) at a rotational connection position. A worm gear (10) is fixedly connected to the outer end of the connecting shaft (9). A worm (11) is meshed on the worm gear (10). The worm (11) is driven to rotate by a second motor (12). The housing of the second motor (12) is fixedly connected to the outer surface of the connecting plate (7) through a fixing plate (13).

5. The high-efficiency scraper device for an automatic sampling machine according to claim 3, characterized in that, The bottom of the contact plate (8) is detachably connected to a wear-resistant scraper block (14).

6. The high-efficiency scraper device for an automatic sampling machine according to claim 3, characterized in that, The angle adjustment mechanism is provided with a protective shell (15) on the outside, and the protective shell (15) is fixedly connected to the side of the fan-shaped partition (4).

7. The high-efficiency scraper device for an automatic sampling machine according to claim 6, characterized in that, The protective shell (15) has an arc surface (16) on its side.

8. The high-efficiency scraper device for an automatic sampling machine according to claim 6, characterized in that, The bottom end of the protective shell (15) is provided with a clearance opening (17), and the inner side of the clearance opening (17) is connected with bristles (18).

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