CN220420598U

CN220420598U - Feeding device and wool making system

Info

Publication number: CN220420598U
Application number: CN202320742729.0U
Authority: CN
Inventors: 武慧亮; 杨明明; 吴俊清; 徐建; 刘仲皓; 郭育灼; 刘建军
Original assignee: Ordos Longji Photovoltaic Technology Co ltd
Current assignee: Ordos Longji Photovoltaic Technology Co ltd
Priority date: 2023-04-06
Filing date: 2023-04-06
Publication date: 2024-01-30
Anticipated expiration: 2033-04-06

Abstract

The utility model discloses a feeding device and a texturing system, which relate to the technical field of material supply, and are convenient for checking and locking abnormal chemicals under the condition of improving the good efficiency of a solar cell, shortening the checking period, simultaneously facilitating the abnormal chemicals to quickly recover to be normal, reducing the loss of good efficiency and further improving the production efficiency of the solar cell. The feeding device comprises a storage tank, a first pipeline, a first valve, a second pipeline, a second valve and a purifying system, wherein the storage tank is used for storing materials to be conveyed, and the first pipeline is communicated with a discharge port and a feeding end. The first valve is arranged on the first pipeline, and the second pipeline is communicated with the discharge port and the feed end. The second valve is arranged on the second pipeline, and the purifying system is arranged on the second pipeline and is used for purifying materials flowing through the second pipeline. The texturing system comprises a feeding device and a texturing device, wherein the texturing device is provided with a containing groove for containing battery pieces and materials, and the feeding pipeline is used for receiving the materials provided by the feeding end and conveying the materials to the containing groove.

Description

Feeding device and wool making system

Technical Field

The utility model relates to the technical field of material supply, in particular to a feeding device and a texturing system.

Background

At present, in the production process of the solar cell, when the used chemicals are abnormal, the pollution of the cell sheet can be caused, and the good efficiency of the solar cell is reduced.

In the prior art, when the chemical is abnormal, the abnormal chemical is discharged and returned to the factory, even scrapped, and in the period of time when normal chemical cannot be timely supplemented, the method only can bear the loss caused by the abnormal chemical in order to ensure the continuity of solar cell production. Meanwhile, when the process product is abnormal, the investigation period is longer, the influence time of good efficiency is longer, and the loss is larger.

Disclosure of Invention

The utility model aims to provide a feeding device and a texturing system, which are convenient for the abnormal detection and locking of chemicals under the condition of improving the good efficiency of a solar cell, shorten the detection period, facilitate the abnormal chemicals to quickly recover to be normal, reduce the loss of good efficiency and further improve the production efficiency of the solar cell.

In order to achieve the above object, in a first aspect, the present utility model provides a feeding device having a feeding end. The feeding device comprises a storage tank, a first pipeline, a first valve, a second pipeline, a second valve and a purifying system, wherein the storage tank is used for storing materials to be conveyed and comprises a feed inlet and a discharge outlet. The first pipeline is communicated with the discharge port and the feed end. The first valve is arranged on the first pipeline and used for controlling the on-off of the first pipeline. The second pipeline is communicated with the discharge port and the feed end. The second valve is arranged on the second pipeline and used for controlling the on-off of the second pipeline. The purifying system is arranged on the second pipeline and used for purifying materials flowing through the second pipeline.

By adopting the technical scheme, the materials stored in the storage tank are conveyed to the feeding end through the first pipeline or the second pipeline, the first valve is used for controlling the on-off of the first pipeline, the second valve is used for controlling the on-off of the second pipeline, the purifying system is arranged on the second pipeline, and the purifying system is used for purifying the materials flowing through the second pipeline. Under the condition that the materials are not abnormal, the second valve on the second pipeline can be in a closed state, and the first valve on the first pipeline is in an open state, so that the materials are conveyed to the feeding end only through the first pipeline. When the material is abnormal, the first valve on the first pipeline is in a closed state, and the second valve on the second pipeline is in an open state, so that the material passes through the second pipeline and is purified by the purification system arranged on the second pipeline and then is conveyed to the feeding end. At the moment, on one hand, abnormal materials are not required to be discharged or even scrapped, so that the operation is simplified, the utilization rate of the materials is improved, and the waste of the materials is avoided. On the other hand, compared with the mode of using abnormal materials in the prior art to ensure the continuity of the production process, the feeding device provided by the utility model can respond rapidly, so that the loss caused by abnormal materials is reduced, and the good efficiency of the product is improved. Moreover, when the production process link using the material is abnormal, the material can be purified in a non-stop state to eliminate or lock the abnormal condition of the material, so that the investigation period can be shortened, abnormal chemicals can be quickly recovered, the good efficiency loss is reduced, and the production efficiency of the solar cell is further improved.

In some possible implementations, the discharge port of the storage tank is provided with a third valve for controlling on-off of the discharge port of the storage tank.

By adopting the technical scheme, the storage tank can be conveniently replaced by controlling the opening and closing of the third valve.

In some possible implementations, the feeding device further includes a third pipeline, one end of the third pipeline is communicated with both the first pipeline and the second pipeline, and the other end of the third pipeline is communicated with the feeding end.

In some possible implementations, the feeding device further includes a first conveying pump disposed in the third pipeline for controlling the flow rate of the material output from the feeding end.

By adopting the technical scheme, the first conveying pump is convenient to control the flow of the material output from the feeding end, and the supply of the material is ensured.

In some possible implementations, the number of first transfer pumps is plural, and the plural first transfer pumps are disposed in parallel in the third pipeline. And a fourth valve corresponding to the first conveying pump is further arranged on the third pipeline and is used for controlling the on-off of materials flowing through the corresponding first conveying pump.

By adopting the technical scheme, a plurality of first delivery pumps are arranged on the third pipeline in parallel, meanwhile, a fourth valve corresponding to the first delivery pumps is further arranged on the third pipeline and is used for controlling the on-off of materials flowing through the corresponding first delivery pumps, and interruption of material supply caused by abnormality of one first delivery pump is avoided so as to ensure continuity of process production.

In some possible implementations, the feeding device further comprises a fifth valve arranged in the second conduit, the second valve and the fifth valve being located at the inlet side and the outlet side of the purification system, respectively.

By adopting the technical scheme, the control effect on the on-off of the second pipeline is enhanced, and meanwhile, the phenomenon that the on-off of the second pipeline is not easy to control due to the fact that one valve arranged on the second pipeline is damaged is avoided.

In some possible implementations, the number of storage tanks is a plurality, and the feeding device further includes a fourth pipeline corresponding to each storage tank, the fourth pipeline being in communication with the feed inlet of the storage tank for conveying material into the storage tank.

By adopting the technical scheme, materials can be conveniently conveyed into the storage tank, and the continuity of material supply is realized.

In some possible implementations, the feeding device further includes a sixth valve for controlling the on-off of the fourth pipeline.

By adopting the technical scheme, the material is conveniently conveyed into the appointed storage tank by controlling the opening and closing of the sixth valve.

In some possible implementations, the feeding device further includes a second transfer pump disposed in the fourth pipeline for controlling a flow rate of the material flowing through the fourth pipeline.

By adopting the technical scheme, the second delivery pump is convenient to control the flow of the material when the material is added to the storage tank, so that the delivery efficiency of the material in the storage tank is improved, and the phenomenon that the material is discontinuous in the storage tank is avoided.

In a second aspect, the utility model also provides a texturing system comprising a feeding device and a texturing device as described in the first aspect or any possible implementation of the first aspect, the texturing device having a receiving slot for receiving battery plates and material. The feeding end of the feeding device is communicated with a feeding pipeline of the texturing device, and the feeding pipeline is used for receiving materials provided by the feeding end and conveying the materials to the accommodating groove.

The advantages of the texturing system provided in the second aspect may be referred to the advantages of the feeding device described in the first aspect or any possible implementation manner of the first aspect, and are not repeated here.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:

fig. 1 is a schematic diagram of a feeding device according to an embodiment of the present utility model.

Reference numerals:

1-a storage tank, 1.1-a feed inlet, 1.2-a discharge outlet, 2-a first pipeline and 3-a first valve,

4-second pipeline, 5-second valve, 6-purifying system, 7-third valve, 8-third pipeline, 9-first transfer pump, 10-fourth valve, 11-fifth valve, 12-fourth pipeline,

13-sixth valve, 14-second transfer pump, 15-feeding end.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. The meaning of "a number" is one or more than one unless specifically defined otherwise.

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

At present, in the production process of solar cells, the requirements on chemicals are high, when the chemicals are abnormal in the process of operation such as canning, feeding and the like, the abnormal chemicals have great impact on the good efficiency of the production line, and the great economic loss of the production line can be caused.

At present, a chemical feeding device adopts a centralized feeding mode, and because the centralized feeding device has no purifying and filtering functions, when the chemical is abnormal in the production process, the abnormal feeding device can only be generally stopped, and the chemical in the abnormal feeding device is discharged and returned to a factory or scrapped, so that the loss is large. Meanwhile, new chemicals cannot be sent in time, so that the production line can only bear good efficiency loss caused by abnormal chemicals in order to ensure continuous output (larger production stopping loss) of the production line, and the production line has stable indexes and larger economic benefit impact on the production line.

At present, the conversion efficiency of the solar cell is higher and higher, the quality requirement on chemicals is higher and higher, and the production line abnormality caused by the chemical problem is more and more frequent. When the process product is abnormal, the difficulty in the aspects of problem investigation and abnormal locking can be caused, and when the chemicals of the whole feeding device are abnormal, the investigation period is longer, the influence time of good efficiency is longer, and the loss is larger.

In order to solve the technical problems in the prior art, as shown in fig. 1, an embodiment of the present utility model provides a feeding device, where the feeding device has a feeding end 15, and the feeding end 15 is connected to a process device for using materials, so as to realize the supply of the materials. The feeding device comprises a storage tank 1, a first pipeline 2, a first valve 3, a second pipeline 4, a second valve 5 and a purifying system 6, wherein the storage tank 1 is used for storing materials to be conveyed, and the storage tank 1 comprises a feed inlet 1.1 and a discharge outlet 1.2. The first pipeline 2 is communicated with the discharge port 1.2 and the feed end 15. The first valve 3 is disposed on the first pipeline 2 and is used for controlling on-off of the first pipeline 2. The second pipeline 4 is communicated with the discharge port 1.2 and the feed end 15. The second valve 5 is disposed on the second pipeline 4 and is used for controlling the on-off of the second pipeline 4. The purifying system 6 is disposed in the second pipeline 4 and is used for purifying the material flowing through the second pipeline 4.

Under the condition of adopting the technical scheme, materials stored in the storage tank 1 provided by the embodiment of the utility model are conveyed to the feeding end 15 through the first pipeline 2 or the second pipeline 4, the first valve 3 is used for controlling the on-off of the first pipeline 2, the second valve 5 is used for controlling the on-off of the second pipeline 4, the purifying system 6 is arranged on the second pipeline 4, and the purifying system 6 is used for purifying the materials flowing through the second pipeline 4. Under the condition that the materials are not abnormal, the second valve 5 on the second pipeline 4 can be in a closed state, and the first valve 3 on the first pipeline 2 is in an open state, so that the materials are conveyed to the feeding end 15 only through the first pipeline 2. When the material is abnormal, the first valve 3 on the first pipeline 2 can be in a closed state, and the second valve 5 on the second pipeline 4 is in an open state, so that the material passes through the second pipeline 4 and passes through the purifying system 6 arranged on the second pipeline 4, and the material is purified and then is conveyed to the feeding end 15. At the moment, on one hand, abnormal materials are not required to be discharged or even scrapped, so that the operation is simplified, the utilization rate of the materials is improved, and the waste of the materials is avoided. On the other hand, compared with the mode of using abnormal materials to ensure the continuity of the production process in the prior art, the feeding device provided by the embodiment of the utility model can quickly respond, reduces the loss caused by abnormal materials and improves the good efficiency of products. Moreover, when the production process link using the materials is abnormal, the purified materials can be conveyed to the process link in a mode of purifying the materials without stopping, at the moment, if the products using the purified materials are still in an abnormal state, the abnormal products caused by the abnormal products can be eliminated, and if the products are recovered to be normal, the abnormal products caused by the abnormal products can be locked. Therefore, abnormal conditions of materials can be eliminated or locked, the investigation period can be shortened, abnormal chemicals can be quickly recovered to be normal, good efficiency loss is reduced, and further, the production efficiency of the solar cell is improved.

In practical situations, during the process of filling the materials into the storage tank, or when the pipeline is in butt joint with the valve, the pipeline is in butt joint with the storage tank, or during the process of filling the materials while using the materials, or the materials are out of date, the abnormal phenomena of the materials can be caused. When the valve is closed or opened, the valve can be opened or closed manually by a person, and of course, the controller can also be used for intelligently controlling the opening and closing of the valve. In specific implementation, when the product produced by the production line is abnormal, and the characterization result points to the material, the first valve 3 can be quickly closed, and the second valve 5 is opened, so that the abnormal material passes through the purification system 6, the purification system 6 purifies the abnormal material, and the material is recovered to be normal, and then is conveyed to the feeding end 15, so that the feeding device provided by the embodiment of the utility model supplies normal material, and the production line is quickly recovered to be normal. So, on the one hand, the feedway can in time respond, and the unusual problem of product that causes of material is solved to the very first time. On the other hand, the production capacity, yield and efficiency loss of the production line caused by abnormal materials borne in order to ensure the production continuity can be avoided. Furthermore, the abnormal materials are not required to be discharged from the feeding device and returned to the factory, even scrapped, so that the materials are saved, and the resource investment is reduced.

When the products produced by the production line are abnormal and the abnormal materials cannot be clearly determined. At this point, the first valve 3 may be closed and the second valve 5 opened, allowing the material to pass through the purification system 6. If the product is recovered to be normal under the condition, the abnormal occurrence of the material can be confirmed. If the product is still abnormal, then it can be excluded that the abnormality of the product is caused by the abnormality of the material. Therefore, whether the material is abnormal or not can be rapidly checked.

It should be noted that in the embodiment provided in the present utility model, the material may be in a gaseous, liquid or solid state. The material can be a material applied to various technical fields, and illustratively, the material can be a chemical applied to a solar cell production process (wet process), and the feeding device provided by the embodiment of the utility model can improve the good efficiency of the solar cell, is convenient for the investigation and locking of abnormal chemicals, shortens the investigation period and enables the abnormal chemicals to be quickly recovered to be normal.

In practice, the number of the storage tanks 1 may be plural, and the number of the storage tanks 1 may be two, three, four or more, for example. In some possible implementations, as shown in fig. 1, the outlet 1.2 of the storage tank 1 is provided with a third valve 7 for controlling the on-off of the outlet 1.2 of the storage tank 1. The third valve 7 may be opened when feeding is required and the third valve 7 may be closed when feeding is not required. When the number of the storage tanks 1 is plural, the number of the third valves 7 is plural, and one third valve 7 corresponds to one storage tank 1. When the material stored in one storage tank 1 is used up, the third valve 7 corresponding to the storage tank 1 can be closed, and at the same time, the third valve 7 corresponding to the other storage tank 1 is opened, so that the storage tank 1 can be replaced by controlling the opening and closing of the third valve 7.

In an alternative, the feeding device further comprises a third pipe 8, one end of the third pipe 8 being in communication with both the first pipe 2 and the second pipe 4, the other end of the third pipe 8 being in communication with the feeding end 15. The third pipeline 8 is communicated with the first pipeline 2 and the second pipeline 4, and the arrangement of the third pipeline 8 indicates that the pipeline is segmented, so that the pipeline is convenient to replace or maintain, the pipeline is prevented from being replaced integrally, and the pipeline input cost is reduced.

As shown in fig. 1, the feeding device provided by the embodiment of the utility model further includes a first conveying pump 9, which is disposed on the third pipeline 8 and is used for controlling the flow rate of the material output from the feeding end 15 so as to ensure the supply of the material.

In some embodiments, the number of the first delivery pumps 9 is plural, and the plural first delivery pumps 9 are disposed in parallel on the third pipeline 8. The third pipeline 8 is also provided with a fourth valve 10 corresponding to the first conveying pump 9, and the fourth valve 10 is used for controlling the on-off of materials flowing through the corresponding first conveying pump 9, so that the interruption of material supply caused by the abnormality of one first conveying pump 9 is avoided, and the continuity of process production is ensured. In addition, when the flow rate of the material required by the process is large, a plurality of fourth valves 10 can be simultaneously opened and corresponding first conveying pumps 9 can be started so as to increase the flow rate of the material conveyed by the feeding end.

In one example, as shown in fig. 1, the feeding device according to the embodiment of the present utility model further comprises a fifth valve 11, which is arranged on the second pipeline 4, and the second valve 5 and the fifth valve 11 are located on the inlet side and the outlet side of the purification system 6, respectively. At this time, the control effect on the on-off of the second pipeline 4 is enhanced, and meanwhile, the phenomenon that the on-off of the second pipeline 4 is not easy to control due to the fact that one of the valves arranged on the second pipeline 4 is damaged is avoided. For example, when the second valve 5 cannot be closed, the closing of the second pipe 4 can be controlled by closing the fifth valve 11.

In a possible implementation, the number of storage tanks is a plurality, and the feeding device further comprises a fourth pipeline 12 corresponding to each storage tank 1, wherein the fourth pipeline 12 is communicated with the feed inlet 1.1 of the storage tank 1 and is used for conveying materials into the storage tank 1 so as to facilitate conveying the materials into the storage tank 1, and the continuity of material supply is realized.

As a possible implementation, the feeding device further comprises a sixth valve 13 for controlling the opening and closing of the fourth conduit 12. In practice, a tank 1 may correspond to a fourth line 12 and a sixth valve 13. When the material in one storage tank 1 is about to run out, the corresponding sixth valve 13 may be opened to facilitate the feeding of the material into the corresponding storage tank 1. When the amount of material in the storage tank 1 reaches the maximum limit value, the sixth valve 13 may be closed, stopping the feeding of material into the storage tank 1. Thus, by controlling the opening and closing of the sixth valve 13, the conveyance of the material into the designated storage tank 1 is facilitated.

In some possible implementations, as shown in fig. 1, the feeding device further comprises a second transfer pump 14 arranged in the fourth pipe 12 for controlling the flow of material through the fourth pipe 12. The setting of second delivery pump 14 is convenient for when adding the material to storage tank 1, and the flow of control to storage tank 1 interpolation material promotes the conveying efficiency to the material in the storage tank 1, avoids storage tank 1 to appear the discontinuous phenomenon of material. In practice, the number of the second transfer pumps 14 may be plural, and one second transfer pump 14 may correspond to one fourth pipeline 12, however, one second transfer pump 14 may also correspond to plural fourth pipelines 12, which is not limited herein.

In addition, the embodiment of the utility model also provides a texturing system which comprises the feeding device and the texturing device, wherein the texturing device is provided with a containing groove for containing the battery piece and the materials. The feeding end of the feeding device is communicated with a feeding pipeline of the texturing device, and the feeding pipeline is used for receiving materials provided by the feeding end and conveying the materials to the accommodating groove. At this time, the material refers to a texturing solution for texturing the battery piece.

In the case of a material which is not abnormal, the material can be conveyed only to the feed end 15 through the first pipe 2 and then to the receiving tank. When the material is abnormal, the material can pass through the second pipeline 4 and pass through the purifying system 6 arranged on the second pipeline 4, and the material is purified and then conveyed to the feeding end 15 and then conveyed to the accommodating groove. At the moment, on one hand, abnormal materials are not required to be discharged or even scrapped, so that the operation is simplified, the utilization rate of the materials is improved, and the waste of the materials is avoided. On the other hand, compared with the mode of using abnormal materials to ensure the continuity of battery piece texturing in the prior art, the texturing system provided by the embodiment of the utility model can quickly respond, reduce the loss caused by abnormal materials and improve the good efficiency of the battery piece. Moreover, when the battery piece is abnormal in the wool making process, the purified material can be conveyed to the accommodating groove in a material purifying mode under the non-stop state, at the moment, if the battery piece is still in an abnormal state in the wool making process, the abnormal battery piece caused by the abnormal material can be eliminated, and after the purified material is conveyed to the wool making process, if the battery piece is recovered to be normal, the abnormal battery piece caused by the abnormal material can be locked. Therefore, abnormal conditions of materials can be eliminated or locked, the investigation period is shortened, abnormal materials can be quickly recovered to be normal, good efficiency loss is reduced, and further, the production efficiency of the solar cell is improved.

In the description of the above embodiments, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing is merely illustrative embodiments of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art can easily think about variations or substitutions within the technical scope of the present utility model, and the utility model should be covered. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.

Claims

1. A feeding device characterized by having a feeding end; the feeding device comprises:

the storage tank is used for storing materials to be conveyed and comprises a feed inlet and a discharge outlet;

the first pipeline is communicated with the discharge port and the feed end;

the first valve is arranged on the first pipeline and used for controlling the on-off of the first pipeline;

the second pipeline is communicated with the discharge port and the feed end;

the second valve is arranged on the second pipeline and used for controlling the on-off of the second pipeline;

and the purifying system is arranged on the second pipeline and is used for purifying the materials flowing through the second pipeline.

2. The feeding device of claim 1, wherein the discharge port of the storage tank is provided with a third valve for controlling the on-off of the discharge port of the storage tank.

3. The feeding device of claim 1, further comprising a third conduit, one end of the third conduit being in communication with both the first conduit and the second conduit; the other end of the third pipeline is communicated with the feeding end.

4. A feeding device according to claim 3, further comprising a first transfer pump arranged in said third conduit for controlling the flow of material output from said feeding end.

5. The feeding device as set forth in claim 4, wherein the number of said first transfer pumps is plural, and a plurality of said first transfer pumps are disposed in parallel in said third pipeline;

the third pipeline is also provided with a fourth valve corresponding to the first conveying pump, and the fourth valve is used for controlling the on-off of the materials flowing through the corresponding first conveying pump.

6. The feeding device of claim 1, further comprising a fifth valve disposed in the second conduit; the second valve and the fifth valve are located at an inlet side and an outlet side of the purification system, respectively.

7. The feeding device of claim 1, wherein the number of storage tanks is a plurality; the feeding device further comprises a fourth pipeline corresponding to each storage tank, and the fourth pipeline is communicated with the feeding hole of each storage tank and used for conveying materials into the storage tanks.

8. The feeding device as set forth in claim 7, further comprising a sixth valve for controlling the on-off of said fourth line.

9. The feeder device of claim 7, further comprising a second transfer pump disposed in the fourth conduit for controlling the flow of material through the fourth conduit.

10. A texturing system comprising:

the feeding device according to any one of claims 1 to 9;

the texturing device is provided with a containing groove for containing the battery piece and the materials; the feeding end of the feeding device is communicated with a feeding pipeline of the texturing device, and the feeding pipeline is used for receiving materials provided by the feeding end and conveying the materials to the accommodating groove.