Screening mechanism for sun-dried pilose asiabell root

Abstract

The utility model relates to a screening mechanism for sun-dried pilose asiabell roots. The screening mechanism comprises two conveying belts. A conveying gap is formed between the inner side edges of the two conveying belts, and the width of the gap is gradually increased in the conveying direction. The pilose asiabell root is placed at the position where the width of the gap is small, along with movement of the conveying belt, the pilose asiabell root moves at the position where the width of the gap is continuously increased, when the width of the gap is matched with the size of the pilose asiabell root, the pilose asiabell root falls off, and screening of the pilose asiabell root with different diameters is achieved. The conveying device has the beneficial effects that the dried codonopsis pilosula with bent lines can be subjected to size screening in the forward conveying process; the screening efficiency is high and the screening effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of long cylindrical traditional Chinese medicine screening, in particular to a screening mechanism for sun-dried codonopsis pilosula. Background Art

[0002] Codonopsis pilosula is long and cylindrical after being dug. After being dug by farmers, it needs to be dried before being sold to traditional Chinese medicine companies; traditional Chinese medicine companies need to screen, pre-process and control the quality of the Codonopsis pilosula before selling it.

[0003] The better quality Codonopsis pilosula on the market is generally sold with the head and tail removed, leaving the middle trunk, and divided into different grades according to the size of the middle trunk (the removed head and tail are sold separately or cut into pieces, and the content of Chinese medicinal components in the head, tail and middle trunk does not differ much).

[0004] Since the codonopsis purchased by Chinese medicine companies from farmers is sun-dried codonopsis, its shape is not a full long cylinder, but rather a somewhat shriveled and curved shape; therefore, it is difficult to screen the size of the middle trunk through equipment. Therefore, most Chinese medicine companies on the market currently screen the middle trunks of different sizes manually; however, manual screening is inefficient and slow, and there are still many subjective factors in manual screening (the size is determined by the naked eye).

[0005] Therefore, based on the needs of screening work, our company has designed a device that can better screen Codonopsis pilosula (mainly the middle trunk). In order to fully protect it, it is divided into multiple schemes, and this scheme only protects the screening structure. Utility Model Content

[0006] The utility model aims to overcome the shortcomings of the prior art and provide a screening mechanism for sun-dried Codonopsis pilosula, which can screen the size of the sun-dried Codonopsis pilosula with high screening efficiency and good effect.

[0007] It should be noted that there are some designs or devices in the prior art (on the market) for size screening of middle-trunk Codonopsis pilosula, but the screening can only be achieved in theory.

[0008] The purpose of the utility model is achieved through the following technical solutions: a screening mechanism for sun-dried codonopsis pilosula, comprising two conveyor belts;

[0009] A conveying gap is formed between the inner sides of the two conveyor belts, and the width of the gap gradually increases along the conveying direction;

[0010] Place the Codonopsis pilosula at a position where the gap width is small. As the conveyor belt moves, the Codonopsis pilosula moves to a position where the gap width continues to increase. When the gap width matches the size of the Codonopsis pilosula, the Codonopsis pilosula falls off, thereby achieving the screening of Codonopsis pilosula of different diameters.

[0011] As a preferred technical solution of the present application, the two ends of the conveyor belt are stretched apart by corresponding driving wheels; the distance between the two driving wheels at one end of the two conveyor belts is smaller than the distance between the two driving wheels at the other end, forming a structure in which the width of the gap gradually increases along the conveying direction.

[0012] As a preferred technical solution of the present application, the inner sides of the two conveyor belts are sloped so that the cross-section of the gap forms a V shape, which is conducive to the placement of Codonopsis pilosula.

[0013] As a preferred technical solution of the present application, a silo is arranged above the narrow end of the gap; the left and right walls of the silo are inclined, and the front and rear walls are vertical, forming a V-shaped groove; the bottom of the silo has a long rectangular leakage opening, which is close to the gap; when the Codonopsis pilosula falls from the silo to the gap, it lies flat.

[0014] As a preferred technical solution of the present application, a rotating shaft is provided at the leakage port, the length of the rotating shaft is consistent with the length direction of the leakage port, and the rotating shaft has multiple blades in the circumference of the rotating shaft; the Codonopsis pilosula in the silo is first located in the area between adjacent blades, and when the rotating shaft rotates, the Codonopsis pilosula between adjacent blades falls from the leakage port, thereby preventing too much Codonopsis pilosula from falling from the leakage port together.

[0015] As a preferred technical solution of the present application, a notch is provided on the rear wall of the silo, and the notch allows the Codonopsis pilosula that falls into the silo to move smoothly along the gap.

[0016] As a preferred technical solution of the present application, a blowing head is also provided at the next workstation on the rear wall of the silo; when the Codonopsis pilosula falls from the silo and moves to the blowing head, the Codonopsis pilosula located on the top of the stacked Codonopsis pilosula will be blown away, and the Codonopsis pilosula at the bottom of the gap will be retained.

[0017] As a preferred technical solution of the present application, a return belt capable of transmission is provided below the gap corresponding to the blowing head; the return belt returns the Codonopsis pilosula blown off by the blowing head to the silo.

[0018] As a preferred technical solution of the present application, a transmitting dividing belt is provided below the gap of the subsequent workstation of the blowing head; there are multiple dividing belts, corresponding to Codonopsis pilosula of different sizes; adjacent dividing belts are separated by partitions.

[0019] In order to facilitate understanding, the principles and core design points of this solution are explained:

[0020] 1. Principle and operation;

[0021] Place the dried Codonopsis pilosula (i.e. the middle trunk) with its head and tail cut off in the barrel; when the shaft rotates, the Codonopsis pilosula located between adjacent leaves will be driven to rotate (the shaft and the leaves play a role similar to a switch door, but the switch door only allows a small amount of material to be placed at a time), so that the Codonopsis pilosula will fall from the leakage port at the bottom of the barrel into the gap (the V-shaped groove formed on the inner side of the two conveyor belts);

[0022] Then the Codonopsis pilosula on the gap moves with the rotation of the conveyor belt. Since the spacing between the adjacent driving wheels at the ends of the two conveyor belts is different (one end has a larger spacing and the other end has a smaller spacing), when the Codonopsis pilosula moves in the direction where the spacing between the adjacent driving wheels is larger, it will eventually fall at a suitable gap width (since the gap is V-shaped, if the Codonopsis pilosula is curved to a certain extent, the surface of the Codonopsis pilosula where the curved curve is located will stick to the groove wall of the V-shaped groove of the gap. When the appropriate gap width is reached, the curved Codonopsis pilosula can also fall; of course, the Codonopsis pilosula that is excessively curved cannot be screened normally, but can be screened manually. This solution still greatly reduces the workload);

[0023] Second, the design that can screen the curved Codonopsis pilosula (the structure of the conveyor belt gap gradually increasing, and the design of the V-shaped gap between the conveyor belts) is one of the core designs;

[0024] It is a common design to screen the materials according to the gap size during the conveying process (such as the screening of apples); however, apples are relatively full and can roll by themselves, so they can fall as long as the gap size is suitable; however, the dried Codonopsis pilosula is long and has a certain shriveled and curved shape, so it is difficult to screen it with a similar idea (the existing Codonopsis pilosula size screening equipment on the market mostly screens the undried (fuller) Codonopsis pilosula, but in reality, the Chinese medicine companies collect all the dried Codonopsis pilosula).

[0025] Therefore, this solution actively drives the Codonopsis pilosula forward through the conveyor belt (the apples are automatically rolled during the apple screening). During the forward process, the apples fall due to the enlarged gap, thus screening occurs. The V-shaped groove design at the gap allows the curved Codonopsis pilosula to tilt to a certain extent - the curved surface fits with the wall of the V-shaped groove of the gap, thus achieving the screening of the curved Codonopsis pilosula.

[0026] 3. One of the core designs is to make a single root of Codonopsis pilosula lie flat in the gap (the structure of the silo, the structural design of the shaft and the blades) to achieve size screening;

[0027] When conveying Codonopsis pilosula, it is necessary to ensure that they are conveyed one by one to better achieve size screening; therefore, a switch door is formed by the rotating shaft and the blades, and only a part of the Codonopsis pilosula is driven to rotate when the rotating shaft and the blades rotate, so as to release a small amount of Codonopsis pilosula (the lower part of the gap below the leakage port is the bearing platform surface, so that the Codonopsis pilosula will not fall from the gap at this position when the rotating shaft rotates; by controlling the height position between the leakage port and the gap, basically only one Codonopsis pilosula can be released at a time, and occasionally two small Codonopsis pilosula can be released); then during the conveying process, the air blowing head is used to blow away the overlapping excess Codonopsis pilosula (only the Codonopsis pilosula overlapping on the top is blown away).

[0028] It should be noted that although this solution cannot be completely accurate, after screening this situation, manual operations are greatly reduced and efficiency is improved.

[0029] It should be noted that this scheme is not only applicable to the screening of Codonopsis pilosula, but similar ideas can also be applied to the screening of other similar traditional Chinese medicines.

[0030] The utility model has the following advantages:

[0031] (1) The distance between two adjacent driving wheels at one end of the two conveyor belts is smaller than the distance between two adjacent driving wheels at the other end, forming a gap with gradually increasing width, so that the Codonopsis pilosula can be screened during the forward conveying process;

[0032] The V-shaped groove gap formed by the two conveyor belts is conducive to the curved Codonopsis pilosula being poured onto the groove wall, avoiding the curved part from being horizontally placed in the gap, thus realizing the screening of the dried Codonopsis pilosula (it may show a certain curvature after drying);

[0033] (2) Compared with the traditional manual screening method, the screening efficiency is higher; compared with the general mechanical equipment screening method, the screening effect is better and more practical (the existing equipment is mostly used for screening undried Codonopsis pilosula). BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the structure of the utility model;

[0035] Figure 2 It is a schematic diagram of the structure between the conveying ground and the driving wheel;

[0036] Figure 3 It is a structural diagram of the silo;

[0037] Figure 4 It is a schematic diagram of the structure between the conveyor belt, the return belt, the dividing belt and the partition;

[0038] Figure 5 A schematic diagram of a bent Codonopsis pilosula obliquely attached to the side wall of a V-shaped groove;

[0039] In the figure: 1- conveyor belt, 101- driving wheel, 2- gap, 3- silo, 301- notch, 4- rotating shaft, 401- blade, 5- blowing head, 6- return belt, 7- dividing belt, 8- partition. DETAILED DESCRIPTION

[0040] The present invention is further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0041] It should be noted that the directions or positional relationships indicated by "left", "right", etc. are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the inventive product is usually placed when in use, or are the directions or positional relationships commonly understood by those skilled in the art. Such terms are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0042] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0043] like Figure 1 to Figure 5 As shown, a screening mechanism for sun-dried codonopsis pilosula proposed in this embodiment includes two conveyor belts 1 and a machine body;

[0044] Two conveyor belts 1 are arranged on the machine body, and the two ends of the two conveyor belts 1 are supported by corresponding driving wheels 101 (the driving wheels 101 are driven by the main driving motor, not shown in the figure), and the center line of the driving wheel 101 is in the horizontal plane, that is, the driving wheel 101 rotates in the vertical plane;

[0045] Moreover, a gap 2 is formed between the inner sides of the two conveyor belts 1; the two driving wheels 101 at the front end position have a certain distance, and the two driving wheels 101 at the rear end position also have a certain distance, and the distance between the two driving wheels 101 at the front end is smaller than the distance between the two driving wheels 101 at the rear end; so that the width of the gap 2 gradually increases from the front end to the rear end direction (i.e., the conveying direction);

[0046] Furthermore, the inner sides of the two conveyor belts 1 are inclined so that the cross section of the gap 2 forms a V-shaped groove.

[0047] When screening different sizes of Codonopsis pilosula: Place Codonopsis pilosula of a certain length (the Codonopsis pilosula that has been dried after removing the head and tail) flat on the front end at two V-shaped grooves (such as Figure 5As shown, if the Codonopsis pilosula presents a certain curvature, the curved surface is easy to fit with the wall of the V-shaped groove - that is, the Codonopsis pilosula is tilted and attached to the wall of the V-shaped groove, and screening can also be achieved). When the corresponding driving wheel 101 drives the corresponding conveyor belt 1 to rotate, the Codonopsis pilosula moves along the conveying direction. During the movement, the width of the gap 2 gradually increases, so the Codonopsis pilosula falls at the gap width that matches its size, thereby achieving Codonopsis pilosula screening.

[0048] refer to Figure 1 A silo 3 is also provided above the front end of the gap 2, the left and right walls of the silo 3 are inclined, and the front and rear walls are vertical, forming a V-shaped groove; the bottom of the silo 3 has a long rectangular leakage opening, the length direction of the leakage opening is the conveying direction of the gap 2, and the leakage opening is close to the gap 2; when the Codonopsis pilosula falls from the silo 3 to the gap 2, it lies flat.

[0049] refer to Figure 2 and Figure 3 An auxiliary driving motor is arranged on the outer side of the front wall of the silo 3, and the rotating shaft 4 of the auxiliary driving motor extends into the silo 3. The rotating shaft 4 is located directly above the material leakage port, and the rotating shaft 4 is also arranged along the length direction; there are multiple blades 401 circumferentially on the rotating shaft 4; the Codonopsis pilosula in the silo 3 is first located in the area between adjacent blades 401, and when the rotating shaft 4 rotates, the Codonopsis pilosula between adjacent blades 401 falls from the material leakage port, so as to prevent too much Codonopsis pilosula from falling from the material leakage port together.

[0050] refer to Figure 3 A notch 301 is provided on the rear wall of the silo 3 , and the notch 301 allows the Codonopsis pilosula dropped from the silo 3 to smoothly move forward along the gap 2 .

[0051] See also Figure 1 At the next station on the rear wall of the silo 3, a blowing head 5 is also provided (the blowing head 5 and the air pressure mechanism are not shown in the figure, and the blowing head 5 and the air pressure mechanism can be ordinary blowing parts in the industrial field for blowing off products, which is a conventional technology in the industrial field);

[0052] Furthermore, a return belt 6 capable of transmission is provided below the gap 2 corresponding to the blowing head 5;

[0053] Below the gap below the leakage port is a bearing platform surface, so that the codonopsis pilosula will not fall from the gap at this position when the shaft rotates;

[0054] During operation, by controlling the height position between the leakage port and the gap, only one Codonopsis pilosula is allowed to lie flat at the gap 2 below the leakage port at a time (if the size is small, two can be laid flat); if two Codonopsis pilosula are stacked and laid flat, when the position is moved to the position of the blowing head 5, the stacked Codonopsis pilosula located on the upper side is blown down by the blowing head 5 and falls onto the return belt 6, which collects the blown-down Codonopsis pilosula and puts it back into the silo 3.

[0055] refer to Figure 1 and Figure 4 , a material dividing belt 7 capable of transmission is provided below the gap 2 of the subsequent station of the blowing head 5; and there are multiple material dividing belts 7, corresponding to codonopsis pilosula of different sizes; adjacent material dividing belts 7 are separated by partitions 8. During operation, codonopsis pilosula of different sizes fall on the corresponding material dividing belts 7 due to the presence of the partitions 8, and codonopsis pilosula of different sizes and specifications can be obtained by collecting codonopsis pilosula on different material dividing belts 7.

[0056] An inner cavity is opened on the machine body, and the codonopsis pilosula falls into the corresponding inner cavity, and the dividing belt 7 and the returning belt 6 pass through the machine body in the left and right directions, and the codonopsis pilosula falls on the dividing belt 7 and the returning belt 6 in the inner cavity.

[0057] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the utility model, the present invention can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A screening mechanism for sun-dried Codonopsis pilosula, characterized by: It comprises two conveyor belts (1); A conveying gap (2) is formed between the inner sides of the two conveyor belts (1), and the width of the gap (2) gradually increases along the conveying direction; The codonopsis pilosula is placed at a position where the gap width is small. As the conveyor belt (1) moves, the codonopsis pilosula moves at a position where the gap width is increasing. When the gap width matches the size of the codonopsis pilosula, the codonopsis pilosula falls off, thereby achieving the screening of codonopsis pilosula with different diameters. The inner sides of the two conveyor belts (1) are sloped, so that the cross section of the gap (2) forms a V-shaped groove, which is conducive to placing the Codonopsis pilosula.

2. The screening mechanism for sun-dried Codonopsis pilosula according to claim 1, characterized in that: Both ends of the conveyor belt (1) are spread apart via corresponding driving wheels (101); The distance between the two driving wheels (101) at one end of the two conveyor belts (1) is smaller than the distance between the two driving wheels (101) at the other end, forming a structure in which the width of the gap (2) gradually increases along the conveying direction.

3. The screening mechanism for sun-dried Codonopsis pilosula according to claim 1, characterized in that: A material bin (3) is arranged above the narrow end of the gap (2); The left and right walls of the silo (3) are inclined, and the front and rear walls are vertical, forming a V-shaped groove; the bottom of the silo (3) has a long rectangular leakage opening, and the leakage opening is close to the gap (2); when the Codonopsis pilosula falls from the silo (3) to the gap (2), the Codonopsis pilosula lies flat.

4. The screening mechanism for sun-dried Codonopsis pilosula according to claim 3, characterized in that: A rotating shaft (4) is provided at the material leakage port, the length of the rotating shaft (4) is consistent with the length direction of the material leakage port, and the rotating shaft (4) has a plurality of blades (401) in the circumferential direction; The codonopsis pilosula in the silo (3) is first located in the area between adjacent blades (401). When the rotating shaft (4) rotates, the codonopsis pilosula between adjacent blades (401) falls from the material leakage port, thereby preventing too much codonopsis pilosula from falling from the material leakage port.

5. The screening mechanism for sun-dried Codonopsis pilosula according to claim 3, characterized in that: A notch (301) is provided on the rear wall of the silo (3), and the notch (301) allows the Codonopsis pilosula that has fallen into the silo (3) to smoothly move forward along the gap (2).

6. The screening mechanism for sun-dried Codonopsis pilosula according to claim 3 or 5, characterized in that: An air blowing head (5) is also provided at the next station of the rear wall of the silo (3); When the Codonopsis pilosula falls from the silo (3) and moves to the blowing head (5), the Codonopsis pilosula located at the top of the stacked Codonopsis pilosula is blown off, and the Codonopsis pilosula at the bottom of the gap (2) is retained.

7. The screening mechanism for sun-dried Codonopsis pilosula according to claim 6, characterized in that: A material return belt (6) capable of transmission is provided below the gap (2) corresponding to the air blowing head (5); the material return belt (6) returns the Codonopsis pilosula blown off by the air blowing head (5) to the material bin (3).

8. The screening mechanism for sun-dried Codonopsis pilosula according to claim 6, characterized in that: A material distribution belt (7) capable of transmission is provided below the gap (2) at the subsequent workstation of the blowing head (5); There are a plurality of dividing strips (7), each corresponding to Codonopsis pilosulae of different sizes; adjacent dividing strips (7) are separated by a partition (8).

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