A strip pack conveying device and method

Abstract

This invention discloses a strip-bundle conveying device and method. The device includes a transition station, a discharge station, and a fourth pushing mechanism. The transition station includes two parallel conveyor belts, a first conveyor belt and a second conveyor belt, each with a first and a second feeding trough. Adjacent first and second feeding troughs are spaced apart with variable spacing. When either the first or second feeding trough discharges material, the other feeding trough can receive material. The discharge station includes a discharge conveyor belt with a third feeding trough aligned with either the first or second feeding trough. The fourth pushing mechanism pushes material from the first or second feeding trough onto the third feeding trough, ensuring continuous material arrangement. This invention has the advantages of simple structure and eliminates the need for independent drive units for each feeding trough.

Description

Technical Field

[0001] This invention relates to the field of packaging equipment technology, and in particular to a strip bag conveying device and conveying method. Background Technology

[0002] Packaging production lines typically consist of several different packaging machines and conveyor belts. Products in production or already processed are transported to the packaging production line for packaging. Once completed, they are sent out as complete products that are easy to transport.

[0003] The existing strip packaging production line has the following defects: After the strip packaging production line weighs the strips using multiple weighing scales, the unqualified strips are automatically discharged by the equipment. Assuming there are twelve rows of strips on the line, one row is rejected because it does not meet the accuracy requirements. The remaining eleven rows are all qualified strips. However, given the current characteristics of the line, these eleven rows of strips also need to be rejected because they are not suitable for boxing. As a result, the number of strips rejected is considerable, which makes the efficiency of strip packaging quite low and wastes the qualified strips.

[0004] To address the aforementioned technical problems, Chinese Patent Application No. 202121136345.1 discloses a high-efficiency bag replenishment machine, comprising a feeding station, a replenishment station, and a replenishment station. The replenishment station stores bags that failed inspection in the previous cycle. Each of the three stations includes multiple material troughs, and each trough in the replenishment station has an independent drive unit, allowing each row to operate independently. The defective bags stored in the replenishment station are used to replenish the missing material in the next cycle, ensuring the next cycle meets the inspection requirements. This allows for simultaneous weighing and replenishment of multiple rows, improving bagging efficiency, and enables the use of multiple rows with missing material as backup storage to replenish the missing material in the next cycle, thus satisfying the replenishment of any number of bags. This replenishment device has a complex structure, requiring a replenishment station for storing bags, and each material trough requires an independent drive unit. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a simple and continuous conveying strip package conveying device and conveying method.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A strip conveying device includes a transition station, a discharge station, and a fourth pushing mechanism. The transition station includes two parallel conveyor belts, a first conveyor belt and a second conveyor belt, respectively equipped with a first conveying trough and a second conveying trough. Adjacent first and second conveying troughs are spaced apart with variable spacing. When either the first or second conveying trough discharges material, the other conveying trough can receive material. The discharge station includes a discharge conveyor belt equipped with a third conveying trough, which is aligned with either the first or second conveying trough. The fourth pushing mechanism is used to push the material from the first or second conveying trough onto the third conveying trough, so that the material is continuously arranged on the third conveying trough.

[0008] As a further improvement to the above technical solution:

[0009] The strip conveying device includes a feeding station and a turning mechanism. The feeding station includes an infeed conveying trough, and the turning mechanism is provided with multiple turning conveying troughs. The turning conveying troughs are aligned with the infeed conveying trough, the first conveying trough, or the second conveying trough.

[0010] The strip conveying device includes a second pushing mechanism, which is used to push the material on the turning conveying trough to the first conveying trough or the second conveying trough.

[0011] The feeding station includes a feeding conveyor belt, and the feeding conveyor trough is located on the feeding conveyor belt.

[0012] The strip conveying device includes a feeding station, which includes an infeed conveying trough, and the infeed conveying trough is aligned with a first conveying trough or a second conveying trough.

[0013] The distance between the first conveyor belt and the second conveyor belt changes when the first conveyor belt and the second conveyor belt are opened or closed.

[0014] The fourth feeding mechanism includes one or more pushers, each of which can only push material from one of the first or second feeding troughs to the third feeding trough at a time.

[0015] As a general inventive concept, the present invention also provides a method for conveying strip packages, comprising the following steps:

[0016] S1, when the first conveying trough is located at the inlet end to receive material, and moves to the outlet end to discharge material after being filled with material, the second conveying trough moves to the inlet end to receive material.

[0017] S2, after the first conveying chute finishes discharging material, when the second conveying chute moves to the discharge end to discharge material, the first conveying chute moves to the inlet end to receive material;

[0018] S3, repeat steps S1 to S2 until all materials are conveyed to the third conveyor chute;

[0019] In step S1 or S2, when there is material in N consecutive slots of the first or second conveying trough, the fourth pushing mechanism pushes the material in the N consecutive slots of the first or second conveying trough to the third conveying trough. The third conveying trough and the first or second conveying trough move a distance of N consecutive slot widths to continue pushing the material in the next slot of the first or second conveying trough.

[0020] In step S1 or S2, when there is no material in N consecutive slots of the first or second conveying trough, the third and fourth pushing mechanisms stop moving, and the first or second conveying trough moves N slot widths to continue pushing material into the N+1th slot of the first or second conveying trough.

[0021] As a further improvement to the above technical solution:

[0022] In step S1 or S2, when there is material in one of the first or second conveying troughs but no material in the adjacent trough, the fourth pushing mechanism pushes the material onto the third conveying trough. The third conveying trough and the first or second conveying trough move a distance of one trough width, and the material is pushed into the next trough of the first or second conveying trough.

[0023] In step S1 or S2, when there is no material in one of the first or second conveying troughs but there is material in an adjacent trough, the third conveying trough and the fourth pushing mechanism stop moving, the first or second conveying trough moves a distance of one trough width, and continues to push material into the next trough of the first or second conveying trough.

[0024] In step S1 or S2, the first conveyor belt and the second conveyor belt move the first conveyor trough and the second conveyor trough respectively.

[0025] Compared with the prior art, the advantages of the present invention are as follows:

[0026] The present invention relates to a strip conveying device and method, wherein the first conveying trough and the second conveying trough are controlled by the first conveyor belt and the second conveyor belt, respectively, and the two belts are driven independently and do not affect each other. Through the movement of the first conveyor belt, the second conveyor belt and the discharge conveyor belt, in conjunction with the fourth pushing mechanism, the material on the first conveying trough or the second conveying trough is pushed to the third conveying trough, so that the material is continuously arranged on the third conveying trough. The structure is simple and each conveying trough does not require an independent drive unit. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of a package conveying device according to an embodiment of the present invention.

[0028] Figure 2This is a schematic diagram of the structure of the package conveying device according to Embodiment 2 of the present invention.

[0029] Figure 3 This is a schematic flowchart of the three-packet delivery method according to an embodiment of the present invention.

[0030] The labels in the diagram represent:

[0031] 1. Feeding station; 11. Feeding conveyor belt; 111. Feeding conveyor trough; 12. First pushing mechanism; 2. Turning mechanism; 21. Turning conveyor trough; 22. Detection mechanism; 3. Transition station; 31. First conveyor belt; 311. First conveyor trough; 32. Second conveyor belt; 321. Second conveyor trough; 33. Second pushing mechanism; 4. Discharge station; 41. Discharge conveyor belt; 411. Third conveyor trough; 42. Fourth pushing mechanism; 43. Third pushing mechanism. Detailed Implementation

[0032] The present invention will be further described in detail below. Unless otherwise specified, the instruments or materials used in the present invention are commercially available.

[0033] In the description of this invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "horizontal", "top", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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. Therefore, they should not be construed as limitations on this invention.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0035] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0036] Example 1

[0037] like Figure 1As shown, the strip conveying device of this embodiment includes a transition station 3, a discharge station 4, and a fourth pushing mechanism 42. The transition station 3 includes two parallel first conveyor belts 31 and second conveyor belts 32. The first conveyor belts 31 and 32 are respectively provided with a first conveying trough 311 and a second conveying trough 321. Adjacent first conveying troughs 311 and second conveying troughs 321 are spaced apart and the spacing is variable. When material is discharged from either the first conveying trough 311 or the second conveying trough 321, material can be fed into the other conveying trough. The discharge station 4 includes a discharge conveyor belt 41. The discharge conveyor belt 41 is provided with a third conveying trough 411, which is aligned with either the first conveying trough 311 or the second conveying trough 321. The fourth pushing mechanism 42 is used to push the material on the first conveying trough 311 or the second conveying trough 321 onto the third conveying trough 411 so that the material is continuously arranged on the third conveying trough 411.

[0038] The present invention discloses a strip-bundle conveying device in which the first conveying trough 311 and the second conveying trough 321 are controlled by the first conveyor belt 31 and the second conveyor belt 32, respectively. The two conveyor belts are driven independently and do not affect each other. Through the movement of the first conveyor belt 31 and the second conveyor belt 32 and the discharge conveyor belt 41, the material on the first conveying trough 311 or the second conveying trough 321 is pushed to the third conveying trough 411 by the fourth pushing mechanism 42, so that the material is continuously arranged on the third conveying trough 411. The structure is simple and each conveying trough does not require an independent drive unit.

[0039] In this embodiment, the discharge conveyor belt 41 is arranged parallel to the first conveyor belt 31 or the second conveyor belt 32.

[0040] The strip conveying device includes a feeding station 1 and a turning mechanism 2. The feeding station 1 includes an infeed conveying trough 111. The turning mechanism 2 is equipped with multiple turning conveying troughs 21, which are aligned with the infeed conveying trough 111, the first conveying trough 311, or the second conveying trough 321. By setting up the turning mechanism 2, the factory space can be rationally arranged according to the length of each conveyor belt.

[0041] The strip conveying device includes a feeding station 1, which includes an infeed conveying trough 111, which is aligned with the turning conveying trough 21.

[0042] The feeding station 1 includes a feeding conveyor belt 11, and a feeding conveyor trough 111 is located on the feeding conveyor belt 11.

[0043] The strip conveying device includes a first pushing mechanism 12, which is used to push the material on the feed conveying trough 111 to the turning conveying trough 21.

[0044] The steering mechanism 2 also includes a detection mechanism 22, which is located at the junction of the steering conveyor trough 21 and the feed conveyor trough 111. The detection mechanism 22 is used to identify whether there is material on each slot of the feed conveyor trough 111 and transmit the detected signal to the controller (not shown in the figure). The controller then controls the movement of the fourth pushing mechanism 42 and the conveyor belt according to whether there is material on the slot.

[0045] The strip conveying device includes a second pushing mechanism 33, which is used to push the material on the turning conveyor trough 21 to the first conveyor trough 311 or the second conveyor trough 321. In this embodiment, the second pushing mechanism 33 is a pusher, which can push all the material on the turning conveyor trough 21 to the first conveyor trough 311 or the second conveyor trough 321 at once, or push the material on a certain trough of the turning conveyor trough 21 one by one to the first conveyor trough 311 or the second conveyor trough 321.

[0046] The distance between the first conveyor belt 311 and the second conveyor belt 321 changes when the first conveyor belt 31 and the second conveyor belt 32 are opened or closed.

[0047] The fourth feeding mechanism 42 includes one or more pushers, which can push the material on one or more slots of the first feeding trough 311 or the second feeding trough 321 to the third feeding trough 411 each time.

[0048] The strip conveying device includes a first pushing mechanism 12, which is used to push the material on the feed conveying trough 111 onto the turning conveying trough 21.

[0049] It also includes a third feeding mechanism 43, which is used to unload materials from the third conveying trough 411 to the outlet.

[0050] The first conveying trough 311, the second conveying trough 321, the third conveying trough 411, and the feed conveying trough 111 are all composed of multiple troughs, and each trough has enough space to hold material. In this embodiment, the material is in strip packages.

[0051] In this embodiment, each pushing mechanism can push one or more materials at a time. In some embodiments, when the materials on each conveying trough are continuous, the continuous materials are transferred all at once; in other embodiments, regardless of whether the materials on the conveying troughs are continuous, the materials are transferred one by one individually.

[0052] Example 2

[0053] like Figure 2 As shown, the strip pack conveying device in this embodiment is largely the same as that in Embodiment 1; the difference is that:

[0054] 1. In this embodiment, there is no steering mechanism 2, and the feed conveyor belt 11 is arranged in parallel with the first conveyor belt 31.

[0055] 2. The feeding conveyor 111 of the feeding station 1 is directly aligned with the first conveyor 311 or the second conveyor 321. The material in the feeding conveyor 111 is pushed onto the first conveyor 311 or the second conveyor 321 by the second pushing mechanism 33. There is no first pushing mechanism 12.

[0056] 3. The detection mechanism 22 is located at the junction of the feed conveyor 111 and the first feed trough 311 or the second feed trough 321.

[0057] Example 3

[0058] like Figure 3 As shown, the strip bag conveying method of this embodiment uses the strip bag conveying device of Embodiment 1, and includes the following steps:

[0059] S1, when the first conveying trough 311 is located at the inlet end to receive material, and moves to the outlet end to discharge material after being filled with material, the second conveying trough 321 moves to the inlet end to receive material.

[0060] S2, after the first conveying trough 311 finishes discharging material, when the second conveying trough 321 moves to the discharge end to discharge material, the first conveying trough 311 moves to the inlet end to receive material;

[0061] S3, repeat steps S1 to S2 until all materials are conveyed to the third conveying trough 411;

[0062] In step S1 or S2, when there is material in N consecutive slots of the first conveying trough 311 or the second conveying trough 321, the fourth pushing mechanism 42 pushes the material in the N consecutive slots of the first conveying trough 311 or the second conveying trough 321 onto the third conveying trough 411. The third conveying trough 411 and the first conveying trough 311 or the second conveying trough 321 move N consecutive slot widths to continue pushing the material into the next slot of the first conveying trough 311 or the second conveying trough 321.

[0063] In step S1 or S2, when there is no material in N consecutive slots of the first conveying trough 311 or the second conveying trough 321, the third conveying trough 411 and the fourth pushing mechanism 42 stop moving, and the first conveying trough 311 or the second conveying trough 321 moves N slot width distances to continue pushing material in the N+1 slot of the first conveying trough 311 or the second conveying trough 321.

[0064] In step S1 or S2, when there is material in one of the first conveying troughs 311 or the second conveying trough 321 but no material in the adjacent trough, the fourth pushing mechanism 42 pushes the material onto the third conveying trough 411. The third conveying trough 411 and the first conveying trough 311 or the second conveying trough 321 move by one trough width distance, and the material is pushed into the next trough of the first conveying trough 311 or the second conveying trough 321.

[0065] In step S1 or S2, when there is no material in one of the first conveying troughs 311 or the second conveying trough 321 but there is material in an adjacent trough, the third conveying trough 411 and the fourth pushing mechanism 42 stop moving, and the first conveying trough 311 or the second conveying trough 321 moves a trough width distance to continue pushing material into the next trough of the first conveying trough 311 or the second conveying trough 321.

[0066] In step S1 or S2, the first conveying trough 311 and the second conveying trough 321 are moved by the first conveyor belt 31 and the second conveyor belt 32, respectively.

[0067] The specific implementation process of the strip package conveying method is as follows:

[0068] A1. The material in the strip bag comes from the inner bag onto the feed conveyor belt 11, and is conveyed to the turning conveyor trough 21 by the first pushing mechanism 12. The turning mechanism 2 rotates 90 degrees counterclockwise, so that the turning conveyor trough 21 is connected to the first conveyor trough 311 or the second conveyor trough 321.

[0069] A2. The second pushing mechanism 33 pushes the strip bag from the turning conveyor trough 21 to the first conveyor trough 311 (assuming the second conveyor trough 321 is empty). After the first conveyor trough 311 is full, the first conveyor belt 31 and the second conveyor belt 32 move synchronously by a trough plate distance (referring to the width of the entire first conveyor trough 311 or the second conveyor trough 321). At this time, the first conveyor trough 311 moves to the position of the second conveyor trough 321.

[0070] A3. When the first conveying trough 311 is in position, the fourth pushing mechanism 42 operates. The fourth pushing mechanism 42 can only push one bag at a time. The second conveying trough 321 moves to the turning conveying trough 21 to receive the material. After that, the first conveyor belt 31 moves only one trough width distance at a time. If there is no shortage of material in any trough of the first conveyor belt 31, the discharge conveyor belt 41 operates synchronously with the first conveyor belt 31. The fourth pushing mechanism 42 pushes once for each movement of the first conveyor belt 31. If there is a shortage of material in a certain trough of the first conveying trough 311, only the first conveyor belt 31 operates, while the discharge conveyor belt 41 and the fourth pushing mechanism 42 do not operate, thus skipping the trough with missing bags and realizing the bag replenishment function.

[0071] A4. When all the material in the first conveying trough 311 is pushed out, the second conveyor belt 32 moves to the position of the fourth pushing mechanism 42, and the first conveying trough 311 receives the material at the turning conveying trough 21 to realize the cycle.

[0072] The material on the third conveying trough 411 is continuously arranged and conveyed to the outlet by the discharge conveyor belt 41. The material is then unloaded from the third conveying trough 411 by the third pushing mechanism 43.

[0073] Example 4

[0074] This embodiment is largely the same as embodiment three, except that it uses the strip bag conveying device from embodiment two. The specific implementation process of the strip bag conveying method in this embodiment is as follows:

[0075] A1. The material in the strip bag comes from the inner bag onto the feed conveyor belt 11, and is conveyed to the first feed trough 311 or the second feed trough 321 for docking through the second pusher mechanism 33.

[0076] A2. The second pushing mechanism 33 pushes the strip bag from the feed conveyor 111 to the first conveyor 311 (assuming the second conveyor 321 is empty). After the first conveyor 311 is full, the first conveyor belt 31 and the second conveyor belt 32 move synchronously by a trough plate distance (referring to the width of the entire first conveyor 311 or the second conveyor 321). At this time, the first conveyor 311 moves to the position of the second conveyor 321.

[0077] A3. When the first feeding trough 311 is in position, the fourth pushing mechanism 42 operates. The fourth pushing mechanism 42 can only push one bag at a time. The second feeding trough 321 receives the material at the infeed feeding trough 111. After that, the first conveyor belt 31 moves only one trough width distance at a time. If there is no shortage of material in any trough of the first conveyor belt 31, the discharge conveyor belt 41 operates synchronously with the first conveyor belt 31. The fourth pushing mechanism 42 pushes once for each movement of the first conveyor belt 31. If there is a shortage of material in a certain trough of the first feeding trough 311, only the first conveyor belt 31 operates, while the discharge conveyor belt 41 and the fourth pushing mechanism 42 do not operate, thus skipping the trough with missing bags and realizing the bag replenishment function.

[0078] A4. When all the material in the first conveying trough 311 is pushed out, the second conveyor belt 32 moves to the position of the fourth pushing mechanism 42, and the first conveying trough 311 receives the material at the inlet conveying trough 111, thus realizing the cycle.

[0079] The material on the third conveying trough 411 is continuously arranged and conveyed to the outlet by the discharge conveyor belt 41. The material is then unloaded from the third conveying trough 411 by the third pushing mechanism 43.

[0080] Example 5

[0081] This embodiment is largely the same as embodiment four, except that the fourth pushing mechanism 42 has multiple pushers and can move horizontally. The specific implementation process of the strip package conveying method in this embodiment is as follows:

[0082] A1. The material in the strip bag comes from the inner bag onto the feed conveyor belt 11, and is conveyed to the first feed trough 311 or the second feed trough 321 for docking through the second pusher mechanism 33.

[0083] A2. The second pushing mechanism 33 pushes the strip bag from the feed conveyor 111 to the first conveyor 311 (assuming the second conveyor 321 is empty). After the first conveyor 311 is full, the first conveyor belt 31 and the second conveyor belt 32 move synchronously by a trough plate distance (referring to the width of the entire first conveyor 311 or the second conveyor 321). At this time, the first conveyor 311 moves to the position of the second conveyor 321.

[0084] A3. When the first conveying trough 311 is in place, the fourth pushing mechanism 42 is activated. According to the material situation on the first conveying trough 311, the fourth pushing mechanism 42 pushes the material. If there is no shortage of material on the first conveying trough 311, the fourth pushing mechanism 42 pushes all the material on the first conveying trough 311 onto the discharge conveyor belt 41.

[0085] If there is a slot in the first conveying trough 311 that is short of material, the fourth pushing mechanism 42 moves to one side of the slot that is short of material and, according to the number of slots with continuous material on the side of the slot that is short of material, aligns the corresponding number of pushers with the slots with continuous material on the first conveying trough, and pushes the continuous material on the first conveying trough 311 to the discharge conveyor belt 41. If a slot in the first conveying trough 311 is short of material, only the first conveyor belt 31 moves, and the discharge conveyor belt 41 and the fourth pushing mechanism 42 do not move, thereby skipping the slot that is short of bag and realizing the continuous bag discharge function.

[0086] A4. When all the material in the first conveying trough 311 is pushed out, the second conveyor belt 32 moves to the position of the fourth pushing mechanism 42, and the first conveying trough 311 receives the material at the inlet conveying trough 111, thus realizing the cycle.

[0087] While the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the invention. Any person skilled in the art can make many possible variations and modifications to the technical solutions of the present invention, or modify them into equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the scope of the present invention, should fall within the protection scope of the present invention.

Claims

1. A strip conveying device, comprising a transition station (3), a discharge station (4), and a fourth pushing mechanism (42), characterized in that: The transition station (3) includes two parallel first conveyor belts (31) and second conveyor belts (32). The first conveyor belt (31) and the second conveyor belt (32) are respectively provided with a first conveying trough (311) and a second conveying trough (321). The adjacent first conveying troughs (311) and second conveying troughs (321) are spaced apart and the spacing is variable. When either the first conveying trough (311) or the second conveying trough (321) discharges material, the other conveying trough can receive material. The discharge station (4) includes a discharge conveyor belt (41), and a third conveying trough (411) is provided on the discharge conveyor belt (41). The third conveying trough (411) is aligned with the first conveying trough (311) or the second conveying trough (321). The fourth pushing mechanism (42) is used to push the material on the first conveying trough (311) or the second conveying trough (321) to the third conveying trough (411) so that the material is continuously arranged on the third conveying trough (411); The first conveying trough (311), the second conveying trough (321), and the third conveying trough (411) are all composed of multiple troughs arranged together; The strip conveying device includes a feeding station (1) and a detection mechanism (22). The feeding station (1) includes a feeding conveying trough (111). The detection mechanism (22) is used to identify whether there is material in each trough of the feeding conveying trough (111).

2. The strip conveying device according to claim 1, characterized in that: The strip conveying device includes a turning mechanism (2), which is provided with a plurality of turning conveying troughs (21). The turning conveying troughs (21) are aligned with the feed conveying trough (111) or the first conveying trough (311) or the second conveying trough (321).

3. The strip conveying device according to claim 2, characterized in that: The strip conveying device includes a second pushing mechanism (33), which is used to push the material on the turning conveying trough (21) to the first conveying trough (311) or the second conveying trough (321).

4. The strip conveying device according to claim 2, characterized in that: The feeding station (1) includes a feeding conveyor belt (11), and the feeding conveyor trough (111) is located on the feeding conveyor belt (11).

5. The strip conveying device according to claim 1, characterized in that: The feed conveying trough (111) is aligned with the first feed trough (311) or the second feed trough (321).

6. The strip conveying device according to claim 1, characterized in that: The distance between the first conveyor trough (311) and the second conveyor trough (321) changes by opening or closing the first conveyor belt (31) and the second conveyor belt (32).

7. The strip conveying device according to claim 1, characterized in that: The fourth pushing mechanism (42) includes one or more pushers, which can push the material on one or more slots of the first conveying trough (311) or the second conveying trough (321) to the third conveying trough (411) each time.

8. A method for conveying strips using a strip conveying device according to any one of claims 1 to 7, characterized in that: Includes the following steps: S1, when the first feeding trough (311) is located at the feeding end to receive material, and moves to the discharging end to discharge material after being filled with material, the second feeding trough (321) moves to the feeding end to receive material; S2, after the first conveying trough (311) finishes discharging material, when the second conveying trough (321) moves to the discharge end to discharge material, the first conveying trough (311) moves to the inlet end to receive material; S3, repeat steps S1 to S2 until all materials are conveyed to the third conveying trough (411); In step S1 or S2, when there is material in N consecutive slots of the first conveying trough (311) or the second conveying trough (321), the fourth pushing mechanism (42) pushes the material in the N consecutive slots of the first conveying trough (311) or the second conveying trough (321) to the third conveying trough (411). The third conveying trough (411) and the first conveying trough (311) or the second conveying trough (321) move N consecutive slot widths to continue pushing the material in the next slot of the first conveying trough (311) or the second conveying trough (321). In step S1 or S2, when there is no material in N consecutive slots of the first conveying trough (311) or the second conveying trough (321), the third conveying trough (411) and the fourth pushing mechanism (42) stop moving, and the first conveying trough (311) or the second conveying trough (321) moves N slot width distances to continue pushing material in the N+1 slot of the first conveying trough (311) or the second conveying trough (321).

9. The method for conveying strip packages according to claim 8, characterized in that: In step S1 or S2, when there is material in one of the first conveying troughs (311) or the second conveying trough (321) but no material in the adjacent trough, the fourth pushing mechanism (42) pushes the material onto the third conveying trough (411), and the third conveying trough (411) and the first conveying trough (311) or the second conveying trough (321) move by one trough width distance, and continue to push the material into the next trough of the first conveying trough (311) or the second conveying trough (321); In step S1 or S2, when there is no material in one of the first conveying troughs (311) or the second conveying trough (321) but there is material in an adjacent trough, the third conveying trough (411) and the fourth pushing mechanism (42) stop moving, and the first conveying trough (311) or the second conveying trough (321) moves a trough width distance to continue pushing the material in the next trough of the first conveying trough (311) or the second conveying trough (321).

10. The method for conveying strip packages according to claim 8, characterized in that: In step S1 or S2, the first conveying trough (311) and the second conveying trough (321) are moved by the first conveyor belt (31) and the second conveyor belt (32), respectively.

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