A continuous pushing mechanism for a stick pack and a stick pack conveying device

Abstract

A strip package continuous pushing mechanism comprises a first conveying bottom rail and a plurality of first pushing plates, a weighing station is arranged below the first conveying bottom rail, and the plurality of first pushing plates comprise pushing plates and overturning plates arranged alternately. The strip package conveying device comprises a material falling groove, a first conveying belt, the strip package continuous pushing mechanism, a second conveying belt and a second continuous pushing mechanism connected in sequence, the first conveying bottom rail is arranged obliquely upward, the second continuous pushing mechanism comprises a second conveying bottom rail and a plurality of second pushing plates, the width of the second conveying belt is smaller than that of the first conveying bottom rail, a plurality of separated conveying channels are arranged on the first conveying belt, the first conveying bottom rail, the second conveying belt and the second conveying bottom rail, first stop blocks are arranged in the conveying channels on the first conveying belt and are aligned with each other, the material falling groove is provided with a plurality of conveying channels corresponding to the conveying channels on the first conveying belt in a one-to-one manner, and second stop blocks are arranged in the conveying channels on the second conveying belt and are aligned with each other. The weighing process does not need to wait, and the strip package conveying efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of food and pharmaceutical packaging equipment technology, and in particular to a strip pack continuous pushing mechanism and strip pack conveying device. Background Technology

[0002] After being packaged by the strip packaging machine, the strip bags must smoothly enter the guide mechanism. The connection between the strip packaging machine and the guide mechanism is crucial. Currently, users require a strip bag pushing speed of 60 cuts / minute. Existing intermittent structures, due to their reciprocating motion, have significant inertia, making it difficult to achieve a capacity of 60 cuts / minute. Furthermore, during the conveying process, the strip bags need to be weighed to determine if the filling quantity is up to standard. In intermittent structures, the weighing station typically uses a cylinder to drive the strip bag pushing part of the intermittent structure. However, limitations such as the response time of the control unit and the extension / retraction time of the cylinder also affect the conveying efficiency of the strip bags. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a continuous pack pushing mechanism that is simple in structure, reliable, requires no waiting during weighing, and is conducive to improving the pack conveying efficiency.

[0004] The present invention further provides a strip package conveying device including the above-mentioned strip package continuous pushing mechanism.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A continuous strip pack pushing mechanism includes a first conveying base rail and a plurality of first push plates for pushing strip packs on the first conveying base rail. A weighing station is provided below the first conveying base rail. The plurality of first push plates include alternately arranged pushing push plates and flipping push plates that can be flipped upward at the weighing station. The length of the strip pack is L1, the distance between adjacent first pushing push plates and flipping push plates is L2, the distance between two adjacent rows of strip packs on the first conveying base rail is L3, L2 > L1 and L3 ≥ 2L2.

[0007] As a further improvement to the above technical solution: the flipping pusher is mounted on a rotating shaft, a follower cam is connected to the rotating shaft, and the weighing station is provided with a pusher for pushing the follower cam to flip upward.

[0008] As a further improvement to the above technical solution: the first conveyor bottom rail is provided with a first synchronous belt on both sides, and the two ends of the rotating shaft are connected to the two first synchronous belts in a one-to-one correspondence.

[0009] A strip bag conveying device includes a material drop chute, a first conveyor belt, a strip bag continuous pushing mechanism, a second conveyor belt, and a second continuous pushing mechanism, which are connected in sequence. The first conveyor bottom rail is arranged obliquely upward. The second continuous pushing mechanism includes a second conveyor bottom rail and a plurality of second push plates for pushing strip bags on the second conveyor bottom rail. The width of the second conveyor belt is smaller than the width of the first conveyor bottom rail. The first conveyor belt, the first conveyor bottom rail, the second conveyor belt, and the second conveyor bottom rail are all provided with a plurality of separated conveying channels along the width direction. Each conveying channel on the first conveyor belt is provided with a first stop block that is aligned with each other. The material drop chute is provided with a plurality of sections and is connected to each conveying channel on the first conveyor belt in a one-to-one correspondence. Each conveying channel on the second conveyor belt is provided with a second stop block that is aligned with each other.

[0010] As a further improvement to the above technical solution: the second conveyor belt is located below the upper end of the first conveyor bottom rail.

[0011] The second conveyor bottom rail is provided with a second synchronous belt on both sides, and the two ends of the second push plate are respectively connected to the two second synchronous belts one by one.

[0012] As a further improvement to the above technical solution: the upper ends of the conveying channels on both sides of the first conveying bottom rail move closer to the middle.

[0013] Compared with the prior art, the advantages of the present invention are as follows: The continuous strip pack pushing mechanism disclosed in the present invention can use multiple first push plates to continuously push strip packs on the first conveying bottom rail forward, which is beneficial to improving conveying efficiency, avoiding the disadvantage of large inertia influence in reciprocating motion, and also helps to keep each row of strip packs neat, avoiding jamming or rear-end collisions; when the strip pack pushed by the flipping push plate needs to be sampled and weighed, the flipping push plate flips upward to separate from the strip pack and continues to move forward. After the strip pack is weighed, the next push plate takes over and pushes it forward, so there is no need to wait, which is beneficial to further improve the conveying efficiency of the strip packs; the distance between two adjacent rows of strip packs on the first conveying bottom rail is twice the distance between two adjacent first push plates, which helps to ensure the stable operation of the continuous strip pack pushing mechanism and avoids rear-end collisions between two rows of strip packs during weighing.

[0014] The strip bag conveying device disclosed in this invention includes the above-mentioned strip bag continuous pushing mechanism, and thus also has the above-mentioned advantages; furthermore, when the strip bags fall from the chute, the positions of each column may be different. At this time, the first conveyor belt is used for conveying. Each conveying channel on the first conveyor belt is provided with a first stop block and is aligned with each other, so that the strip bags can move in a consistent manner and smoothly enter the first conveying bottom rail arranged obliquely upward. The continuous strip-pushing mechanism can push strips with relatively large spacing between rows forward, performing sampling, weighing, and rejection of defective strips during the forward movement. However, its width is relatively wide, and if the strips are pushed all the way to the steering machine, it will interfere with the redundant mechanism of the steering machine, and the opening size in the wall is relatively large, affecting the aesthetics. Therefore, a second continuous pushing mechanism is set up. The width of the second continuous pushing mechanism can be very small. In order to achieve a good transition between the strips of the continuous strip-pushing mechanism and the second continuous pushing mechanism and avoid the phenomenon of insufficient conveying power, a second conveyor belt is set up. The function of the second conveyor belt is to enable the strips output from the continuous strip-pushing mechanism to smoothly enter the second continuous pushing mechanism. Finally, the second continuous pushing mechanism can smoothly push the strips into the rotating station of the steering machine. Attached Figure Description

[0015] Figure 1 This is a top view of the continuous strip delivery mechanism of the present invention.

[0016] Figure 2 This is a cross-sectional structural schematic diagram of the continuous strip delivery mechanism of the present invention.

[0017] Figure 3 This is a schematic diagram of the main structure of the strip conveying device of the present invention.

[0018] Figure 4 This is a top view of the strip conveying device of the present invention.

[0019] Figure 5 yes Figure 3 Enlarged view of point A in the middle.

[0020] Figure 6 yes Figure 3 Enlarged view of point B in the middle.

[0021] Figure 7 This is a schematic diagram showing the relative relationship between the strip packages, the distances between two adjacent first push plates, and the distances between two rows of strip packages in this invention.

[0022] The labels in the diagram represent: 1. Material chute; 2. First conveyor belt; 21. First stop; 31. First conveyor bottom rail; 4. Second continuous pushing mechanism; 41. Second conveyor bottom rail; 5. First push plate; 51. First synchronous belt; 52. Tilting push plate; 53. Pushing push plate; 54. Follow-up cam; 6. Weighing station; 7. Second push plate; 71. Second synchronous belt; 8. Conveying channel; 9. Second conveyor belt; 91. Second stop. Detailed Implementation

[0023] As indicated in this section and the claims, unless the context clearly indicates otherwise, the words "a," "an," "an," and / or "the" are not specifically singular and may include the plural. The terms "first," "second," and similar terms used in this section do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms "comprising" or "including" mean that the element or object preceding the word covers the element or object listed after the word and its equivalents, without excluding other elements or objects. The terms "connected" or "linked" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] Example 1

[0026] Figures 1 to 2 This invention illustrates an embodiment of a continuous strip pack pushing mechanism. The mechanism includes a first conveying base rail 31 and multiple first push plates 5 for pushing strip packs onto the first conveying base rail 31. A weighing station 6 is located below the first conveying base rail 31. The multiple first push plates 5 include alternately arranged pushing push plates 53 and flipping push plates 52 that can be flipped upwards at the weighing station 6. The length of the strip pack is L1, the distance between adjacent first pushing push plates 53 and flipping push plates 52 is L2, and the distance between two adjacent rows of strip packs on the first conveying base rail 31 is L3. L2 > L1 and L3 = 2L2. Specifically, L1 is 130 mm, L2 is 200 mm, and L3 is 400 mm.

[0027] The continuous strip-packing mechanism of this embodiment can use multiple first push plates 5 to continuously push each row of strips on the first conveying bottom rail 31 forward, which is beneficial to improving conveying efficiency and avoiding the disadvantage of large inertia influence in reciprocating motion. At the same time, it is beneficial to keep each row of strips neat and avoid jamming or rear-end collision. When the strip pushed by the flip push plate 52 needs to be sampled and weighed, the flip push plate 52 flips upward to separate from the strip and continues to move forward. After the strip is weighed, the next push push plate 53 takes over and pushes it forward. Therefore, there is no need to wait, which is beneficial to further improve the conveying efficiency of the strips. The distance between two adjacent rows of strips on the first conveying bottom rail 31 is twice the distance between the adjacent push push plate 53 and the flip push plate 52. This is beneficial to ensure that the continuous strip-packing mechanism can operate stably and avoid rear-end collision between two rows of strips during weighing.

[0028] Of course, in other embodiments, the distance between two adjacent rows of strips can be appropriately increased to help prevent rear-end collisions, but the drawback is that it will increase the overall length of the mechanism.

[0029] Furthermore, in this embodiment, the flipping pusher 52 is mounted on a rotating shaft 55, and a follower cam 54 is connected to the rotating shaft 55. The weighing station 6 is provided with a pusher (not shown in the figure) for pushing the follower cam 54 to flip upwards. The pusher can be, for example, a push block, a push rod, etc., and the part of the pusher that contacts the follower cam 54 is preferably an arc structure to reduce resistance. See details. Figure 2 When the follower cam 54 flips upward under the action of the pusher, it can drive the rotating shaft 55 to rotate counterclockwise, thereby realizing the upward flipping of the flipping push plate 52. After the follower cam 54 continues to move forward and separates from the pusher, it automatically flips downward under the action of gravity, driving the flipping push plate 52 to reset, preparing for the next push. The structure is simple and effective.

[0030] In a preferred embodiment, the first conveying bottom rail 31 is provided with first synchronous belts 51 on both sides, and the two ends of the rotating shaft 55 are connected to the two first synchronous belts 51 in a one-to-one correspondence. The pusher plate 53 can also be installed on the rotating shaft 55, the difference being that there is no need to set a follower cam 54 on the rotating shaft 55. When conveying the strip package, the first synchronous belts 51 drive the rotating pusher plates 52 and the pusher plate 53 to circulate, resulting in very high conveying efficiency.

[0031] Example 2

[0032] Figures 3 to 6This invention illustrates an embodiment of the strip bag conveying device. The device includes a drop chute 1, a first conveyor belt 2, the aforementioned continuous strip bag pushing mechanism, a second conveyor belt 9, and a second continuous pushing mechanism 4, sequentially connected. The first conveyor bottom rail 31 is arranged obliquely upwards. The second continuous pushing mechanism 4 includes a second conveyor bottom rail 41 and multiple second push plates 7 for pushing strip bags onto the second conveyor bottom rail 41. The width of the second conveyor belt 9 is smaller than the width of the first conveyor bottom rail 31. Multiple separated conveying channels 8 are provided along the width direction on the first conveyor belt 2, the first conveyor bottom rail 31, the second conveyor belt 9, and the second conveyor bottom rail 41. Each conveying channel 8 on the first conveyor belt 2 has a first stop 21 that is aligned with each other. The drop chute 1 has multiple stops that are connected one-to-one with each conveying channel 8 on the first conveyor belt 2. Each conveying channel 8 on the second conveyor belt 9 has a second stop 91 that is aligned with each other.

[0033] The strip bag conveying device of this embodiment includes the strip bag continuous pushing mechanism described above, and therefore also has the above advantages; furthermore, when the strip bags fall from the drop chute 1, the positions of each column may be different. At this time, the first conveyor belt 2 is used for conveying. Each conveying channel 8 on the first conveyor belt 2 is provided with a first stop 21 and is aligned with each other, so that the strip bags can move in a consistent manner and smoothly enter the first conveying bottom rail 31 arranged obliquely upward. The continuous strip-pushing mechanism can push strips with relatively large spacing between each row forward, and perform sampling, weighing, and rejection of defective strips during the forward movement. However, its width is relatively wide. If the strips are pushed all the way to the steering machine, it will interfere with the redundant mechanism of the steering machine, and the opening size in the wall is relatively large, affecting the aesthetics. Therefore, a second continuous pushing mechanism 4 is set up. The width of the second continuous pushing mechanism 4 can be very small. In order to achieve a good transition between the strips of the continuous strip-pushing mechanism and the second continuous pushing mechanism 4 and avoid the phenomenon of lack of conveying power, a second conveyor belt 9 is set up. The function of the second conveyor belt 9 is to enable the strips output from the continuous strip-pushing mechanism to smoothly enter the second continuous pushing mechanism 4. Finally, the second continuous pushing mechanism 4 can smoothly push the strips into the rotating station of the steering machine.

[0034] Furthermore, in this embodiment, the second conveyor belt 9 is located below the upper end of the first conveyor bottom rail 31, and the strips on the first conveyor bottom rail 31 can fall smoothly onto the second conveyor belt 9 by utilizing the height difference, which is simple and reasonable.

[0035] In a preferred embodiment, the second conveyor bottom rail 41 is provided with second synchronous belts 71 on both sides, and the two ends of the second push plate 7 are respectively connected to the two second synchronous belts 71 in a one-to-one correspondence. The connection method between the second push plate 7 and the second synchronous belt 71 can be referred to the connection method between the first push plate 5 and the first synchronous belt 51, and will not be described again.

[0036] In a preferred embodiment, the upper ends of the conveying channels 8 on both sides of the first conveying bottom rail 31 are brought closer to the middle, resulting in good structural symmetry. At the same time, the upper end of the first conveying bottom rail 31 is basically the same width as the second conveyor belt 9, which facilitates docking.

[0037] 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 continuous strip pack pushing mechanism, characterized in that: The system includes a first conveying base rail (31) and multiple first push plates (5) for pushing the strips on the first conveying base rail (31). A weighing station (6) is provided below the first conveying base rail (31). The multiple first push plates (5) include alternately arranged push plates (53) and flipping push plates (52) that can be flipped upward at the weighing station (6). A first synchronous belt (51) is provided on both sides of the first conveying base rail (31). The first synchronous belt (51) drives each push plate (53) and flipping push plate (52) to rotate in a cycle. The length of the strip is L1, the distance between adjacent push plates (53) and flipping push plates (52) is L2, and the distance between two adjacent rows of strips on the first conveying base rail (31) is L3. L2 > L1 and L3 ≥ 2L2.

2. The continuous strip delivery mechanism according to claim 1, characterized in that: The flipping push plate (52) is mounted on a rotating shaft (55), and a follower cam (54) is connected to the rotating shaft (55). The weighing station (6) is provided with a pusher for pushing the follower cam (54) to flip upward.

3. The continuous strip delivery mechanism according to claim 2, characterized in that: The two ends of the rotating shaft (55) are connected one-to-one with the two first synchronous belts (51).

4. A strip pack conveying device, characterized in that: The system includes a material drop chute (1) connected in sequence, a first conveyor belt (2), a strip package continuous pushing mechanism according to any one of claims 1 to 3, a second conveyor belt (9), and a second continuous pushing mechanism (4). The first conveyor bottom rail (31) is arranged obliquely upward. The second continuous pushing mechanism (4) includes a second conveyor bottom rail (41) and a plurality of second push plates (7) for pushing strip packages on the second conveyor bottom rail (41). The width of the second conveyor belt (9) is smaller than the width of the first conveyor bottom rail (31). The first conveyor belt (2), the first conveyor bottom rail (31), the second conveyor belt (9), and the second conveyor bottom rail (41) are all provided with a plurality of separated conveying channels (8) along the width direction. Each of the conveying channels (8) on the first conveyor belt (2) is provided with a first stop (21) and they are aligned with each other. The material drop chute (1) is provided with a plurality of blocks and is connected one-to-one with each of the conveying channels (8) on the first conveyor belt (2). Each of the conveying channels (8) on the second conveyor belt (9) is provided with a second stop (91) and they are aligned with each other.

5. The strip conveying device according to claim 4, characterized in that: The second conveyor belt (9) is located below the upper end of the first conveyor bottom rail (31).

6. The strip conveying device according to claim 4, characterized in that: The second conveyor bottom rail (41) is provided with a second synchronous belt (71) on both sides, and the two ends of the second push plate (7) are respectively connected to the two second synchronous belts (71) one by one.

7. The strip conveying device according to claim 4, characterized in that: The upper ends of the conveying channels (8) on both sides of the first conveying bottom rail (31) move closer to the middle.

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