A delivery mechanism

Abstract

The application discloses a conveying mechanism, which comprises a driving sprocket, a driven sprocket and a ring chain connected between the driving sprocket and the driven sprocket, a plurality of push blocks are arranged on the ring chain in sequence and at intervals, the push blocks are hinged to the ring chain through first pins, and the push blocks can rotate around the first pins; a transposition overturning mechanism is arranged on a transposition position of a moving path of the push blocks, and the transposition overturning mechanism is used for overturning the push blocks from an inner ring of the ring chain to an outer ring of the ring chain or from the outer ring of the ring chain to the inner ring of the ring chain. The application realizes automatic adjustment of interval distances between adjacent push blocks in the outer ring of the ring chain, so that the conveying can be adapted to the specifications and lengths of different materials.

Description

Technical Field

[0001] This invention relates to the field of conveying equipment technology, and more specifically to a conveying mechanism. Background Technology

[0002] Currently, during the conveyor chain process, the push blocks on it can effectively drive the carton to move and transport it. It can also be used for heavier materials. However, since the carton specifications often change during the production process, it is necessary to manually change the chain with different push block intervals. The replacement process is very cumbersome and seriously affects production efficiency. Therefore, there is an urgent need for a chain conveyor that can automatically change the push block interval. Summary of the Invention

[0003] The purpose of this invention is to provide a conveying mechanism that automatically adjusts the spacing between adjacent push blocks on the outer ring of the annular chain, thereby adapting to the pushing and conveying of materials of different specifications and lengths.

[0004] The technical solution adopted in this invention is:

[0005] A conveying mechanism includes a driving sprocket and a driven sprocket, and an annular chain connecting the driving sprocket and the driven sprocket. A plurality of push blocks are arranged sequentially at intervals on the annular chain. The push blocks are hinged to the annular chain by a first pin and can rotate around the first pin. A repositioning and flipping mechanism is provided at the changing position of the push block movement path. The repositioning and flipping mechanism is used to flip the push block from the inner ring of the annular chain to the outer ring of the annular chain or from the outer ring of the annular chain to the inner ring of the annular chain.

[0006] Preferably, the push block is provided with an arc-shaped guide groove, and a second pin is provided in the arc-shaped guide groove. The second pin is connected to the annular chain, and the center of the arc-shaped guide groove is the first pin.

[0007] Preferably, the repositioning and flipping mechanism includes two retractable blocking members. When the blocking members are retracted and moved to position one, the two blocking members are respectively located on the moving path of the push block of the inner ring of the ring chain and the moving path of the push block of the outer ring chain, and are staggered along the length of the ring chain. When the blocking members are retracted and moved to position two, the two blocking members do not appear on the moving path of the push block of the inner ring of the ring chain and the moving path of the push block of the outer ring chain.

[0008] Preferably, the blocking component is connected to a cylinder, and the cylinder is connected to the blocking component through a cylinder push plate. The cylinder drives the blocking component to extend and retract through the cylinder push plate.

[0009] Preferably, the blocking element is a limiting post.

[0010] Preferably, an annular groove is provided on one side of the annular chain. The annular groove includes a fixed groove and a movable groove. The fixed groove has an open section located at the changing position. The movable groove is located at the open section of the fixed groove and together with the fixed groove, they form a complete annular groove. The push block has a guide post. When the push block is located in the inner ring of the annular chain, the guide post is located in the annular groove. When the movable groove moves outward, the movable groove disengages from the open section of the fixed groove.

[0011] Preferably, an upper guide plate is provided on one side of the annular chain, and a fixed groove is provided on the inner side of the upper guide plate as the upper guide plate groove. The upper guide plate also has a notch at the opening section of the fixed groove. An upper guide movable plate is provided on one side of the notch of the upper guide plate, and a movable groove is provided on the inner side of the upper guide movable plate. The upper guide movable plate is connected to a cylinder through a cylinder push plate. The cylinder drives the upper guide movable plate to move back and forth through the cylinder push plate, thereby driving the movable groove to move back and forth through the upper guide movable plate.

[0012] Preferably, a chain guide plate is provided on the inner ring of the chain, and the chain moves on the outer ring of the chain guide plate.

[0013] Preferably, the side plate of the push block has a protrusion. When the push block is flipped to the outer ring of the ring chain, the protrusion is located at the bottom edge of the push block at this time; that is, it is set at the right-angle bottom edge of the push block when it is flipped to the outer ring of the ring chain. This is to prevent the push block from moving upward during the movement of the outer ring of the ring chain, causing the push block to detach from the chain guide plate, thereby limiting the push block and preventing it from rotating, which would lead to the failure of pushing the box.

[0014] Preferably, the flip angle of the pusher block switching between the position of the inner ring of the ring chain and the position of the outer ring of the ring chain is 90 degrees; the pusher block is a right triangle.

[0015] The beneficial effects of this invention are:

[0016] This invention utilizes a flipping mechanism to flip the pusher blocks from the inner ring of the annular chain to the outer ring, or vice versa. This allows for automatic adjustment of the number of pushers on the outer ring of the annular chain and the spacing between adjacent pushers. The pushers on the outer ring drive the material on the conveying mechanism forward. By adjusting the spacing between adjacent pushers on the outer ring, the invention adapts to the pushing and conveying of different material specifications and lengths, making it particularly suitable for cardboard box materials, with the pushers acting as box pushers. Attached Figure Description

[0017] Figure 1 This is a cross-sectional view of the conveying mechanism in an embodiment of the present invention;

[0018] Figure 2 yes Figure 1 AA section view;

[0019] Figure 3 This is a perspective view of the conveying mechanism after removing the upper guide plate in an embodiment of the present invention;

[0020] Figure 4 This is a perspective view of the conveying mechanism in an embodiment of the present invention;

[0021] Figure 5 This is a schematic diagram of the conveying mechanism in an embodiment of the present invention, in which the first pusher block located on the outer ring of the annular chain moves to the changing position and is about to be flipped to the inner ring of the annular chain for changing;

[0022] Figure 6 This is a schematic diagram of a conveying mechanism for a three-station carton in an embodiment of the present invention;

[0023] Figure 7 This is a schematic diagram of a conveying mechanism for a two-station carton in an embodiment of the present invention;

[0024] In the diagram: 1-First limiting post, 2-Second limiting post, 3-Cylinder, 4-Cylinder push plate, 5-Upper guide plate groove, 6-Upper guide plate, 7-Upper guide movable plate, 8-Annular chain, 9-Chain guide plate, 10-Guide post, 11-First pin, 12-Second pin, 13-Inner ring of chain, 14-Outer ring of chain, 15-Change position;

[0025] 1-1-First push block, 1-2-Second push block, 1-3-Third push block, 1-4-Fourth push block, 1-5-Fifth push block, 1-6-Sixth push block, 1-7-Seventh push block, 1-8-Eighth push block. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0027] In the description of this invention, it should be understood that if terms such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise" are used to 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 the 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, and therefore should not be construed as a limitation of the invention. 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 indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, and they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances.

[0029] Example 1

[0030] A conveying mechanism, such as Figures 1-4 As shown, the device includes a drive sprocket and a driven sprocket, and an annular chain 8 connecting the drive sprocket and the driven sprocket. Multiple push blocks are sequentially spaced along the length of the annular chain 8. Each push block is hinged to the annular chain 8 via a first pin 11, and can rotate around the first pin 11. A repositioning and flipping mechanism is provided at the changing position 15 along the push block's movement path. This mechanism flips the push block from the inner ring 13 of the annular chain to the outer ring 14, or from the outer ring 14 to the inner ring 13. This allows adjustment of the number of push blocks on the outer ring 14 and the spacing between adjacent push blocks. The push blocks on the outer ring 14 drive the material on the conveying mechanism forward. By adjusting the spacing between adjacent push blocks on the outer ring 14, the device can adapt to different material specifications and lengths, making it particularly suitable for cardboard box materials. The push blocks act as push blocks for boxes.

[0031] The push block is provided with an arc-shaped guide groove, and a second pin 12 is provided in the arc-shaped guide groove. The second pin 12 is connected to the annular chain 8, and the center of the arc-shaped guide groove is the first pin 11. When the push block flips around the first pin 11 to switch between the positions of the inner ring 13 and the outer ring 14 of the annular chain, the second pin 12 switches between the two ends of the arc-shaped guide groove.

[0032] Example 2

[0033] Based on Example 1, the transposition and flipping mechanism is further defined, and the performance of Example 2 is even better after the definition is defined.

[0034] The reversing mechanism includes two retractable blocking members. When the blocking members are retracted and moved to position one, the two blocking members are respectively located on the moving path of the push block of the inner ring 13 of the ring chain and the moving path of the push block of the outer ring 14 of the ring chain, and are staggered from the position of at least one push block along the length of the ring chain. When the blocking members are retracted and moved to position two, the two blocking members do not appear on the moving path of the push block of the inner ring 13 of the ring chain and the moving path of the push block of the outer ring 14 of the ring chain.

[0035] Furthermore, the extension and retraction of the blocking member are considered as two positions of the blocking member, namely position one and position two.

[0036] Furthermore, the blocking component is connected to a cylinder 3, which is connected to the blocking component via a cylinder push plate 4. The cylinder 3 drives the blocking component to extend and retract via the cylinder push plate 4.

[0037] Furthermore, the blocking component is a limiting post; the two blocking components are the first limiting post 1 and the second limiting post 2, respectively.

[0038] Furthermore, an annular groove is provided on one side of the annular chain. The plane of the annular groove is parallel to the plane of the annular chain. The annular groove includes a fixed groove and a movable groove. The fixed groove has an opening section located on the changing position 15. The movable groove is located at the opening section of the fixed groove and together with the fixed groove, they form a complete annular groove. A guide post 10 is provided on the side end face of the push block. When the push block is located in the inner ring 13 of the annular chain, the guide post 10 is located in the annular groove. When the push block moves with the annular chain in the inner ring 13, the guide post 10 moves along the length of the annular groove. When the movable groove moves outward, the movable groove disengages from the opening section of the fixed groove. The annular groove is in a disassembled state. At this time, if the push block moves to the opening section, the guide post 10 can disengage from the annular groove.

[0039] Furthermore, when the push block is to be flipped from the inner ring 13 of the annular chain to the outer ring 14 of the annular chain, the corresponding push block moves with the chain to the changing position 15, the movable groove moves outward and disengages from the opening section of the fixed groove, and the guide post 10 of the push block also disengages from the movable groove in the annular groove. The changing and flipping mechanism flips the corresponding push block from the inner ring 13 of the annular chain to the outer ring 14 of the annular chain, the movable groove moves back to the opening section of the fixed groove, and the movable groove is connected with the fixed groove again to form a complete ring.

[0040] When the push block is to be flipped from the outer ring 14 of the annular chain to the inner ring 13 of the annular chain, the corresponding push block moves with the chain to the changing position 15, the movable groove disengages from the opening section of the fixed groove, the changing and flipping mechanism flips the corresponding push block from the outer ring 14 of the annular chain to the inner ring 13 of the annular chain, the movable groove moves back to the opening section of the fixed groove, the movable groove is connected with the fixed groove again, and splices together to form a complete ring, and the guide post 10 of the corresponding push block enters the movable groove in the annular groove.

[0041] Furthermore, an upper guide plate 6 is provided on one side of the annular chain, and a fixed groove is provided on the inner side of the upper guide plate 6 (the inner side of the upper guide plate 6 is the side of the upper guide plate 6 facing the annular chain), serving as the upper guide plate groove 5. The upper guide plate 6 also has a notch at the opening section of the fixed groove. An upper guide movable plate 7 is provided on one side of the notch of the upper guide plate 6, and a movable groove is provided on the inner side of the upper guide movable plate 7. The upper guide movable plate 7 is connected to a cylinder 3 through a cylinder push plate 4. The cylinder 3 drives the upper guide movable plate 7 to move back and forth through the cylinder push plate 4, thereby driving the movable groove to move back and forth through the upper guide movable plate 7.

[0042] Furthermore, the cylinder 3 and cylinder push plate 4 connected to the upper guide movable plate 7 and the cylinder 3 and cylinder push plate 4 connected to the blocking member are the same cylinder 3 and cylinder push plate 4.

[0043] Furthermore, the inner ring 13 of the chain is provided with a chain guide plate 9, and the chain moves on the outer ring of the chain guide plate 9; the upper guide plate 6 is provided between the chain guide plate 9 and a side plate, the chain guide plate 9 is provided between the two side plates of the conveying mechanism, the two ends of the drive shaft connected to the drive sprocket are respectively connected to the two side plates, and the two ends of the driven shaft connected to the driven sprocket are respectively connected to the two side plates.

[0044] Furthermore, there is a protrusion on the side plate of the push block. When the push block is flipped to the outer ring of the ring chain, the protrusion is located at the bottom edge of the push block at this time; that is, it is set at the right-angle bottom edge of the push block when it is flipped to the outer ring of the ring chain. This is to prevent the push block from moving upward during the movement of the outer ring of the ring chain, causing the push block to detach from the chain guide plate 9. This limits the push block and prevents it from rotating, which would lead to the failure of pushing the box.

[0045] Furthermore, the bumps and guide posts are positioned near the two acute angles of the right-angled triangular push block, respectively.

[0046] Furthermore, the flip angle of the push block switching between the position of the inner ring of the ring chain and the position of the outer ring of the ring chain is 90 degrees; the push block is a right triangle, and the first pin 11 is close to the right angle of the push block.

[0047] Example 3

[0048] The structure and principle of Example 3 are similar to those of Examples 1 and 2, except that there are 8 push blocks, namely the first push block, the second push block, the third push block, the fourth push block, the fifth push block, the sixth push block, the seventh push block and the eighth push block, and the conveying material is a cardboard box.

[0049] The working principle of this invention is as follows: Figures 1-4 As shown, this mechanism can automatically change the shape of cartons within a range of specifications. Carton transport is achieved by a chain driving pushers fixed to the chain, and the carton size change is achieved by a cylinder 3 lifting and lowering. The first, second, third, fourth, fifth, and sixth pushers are evenly fixed to the rotating chain by first pins 11 and second pins 12. The chain guide plate 9 and the second pins 12 limit the movement of the first, second, third, fourth, fifth, and sixth pushers, preventing them from rotating during the carton pushing process, while ensuring that the first, second, third, fourth, fifth, and sixth pushers rotate along the outer ring 14 of the chain. The function of the push box: The seventh push block and the eighth push block are used as change push blocks for changing the shape. The seventh push block is set between the first push block and the second push block, and the eighth push block is set between the fourth push block and the fifth push block. They are installed on the chain between the two push boxes by the first pin 11 and the second pin 12 at intervals. At the same time, the guide post 10 on the seventh push block and the eighth push block is embedded in the groove 5 of the upper guide plate. The guide plate plays a limiting and guiding role, so that the seventh push block and the eighth push block rotate along the inner ring 13 of the chain so as not to affect the normal push box.

[0050] like Figures 6-7 As shown, the three-station carton conveyor (carton length L≤L1) automatically switches to a two-station carton conveyor (L1<carton length L≤L2). When the first pusher moves to... Figure 5When the chain stops moving at position 15, cylinder 3 pushes cylinder push plate 4 to push the first push block upwards. At the same time, upper guide movable plate 7, first limit post 1, and second limit post 2 are also pushed up. After the first push block is pushed up, the chain continues to rotate. When the first push block touches the first limit post 1, the first limit post 1 causes the first push block to rotate 90 degrees around the first pin 11, so that the guide post 10 on the first push block enters the groove 5 of the upper guide plate and rotates along the inner ring 13 of the chain without affecting the push box. The chain continues to rotate, and the guide post 10 on the seventh push block disengages from the groove 5 of the upper guide plate. When the seventh push block touches the second limit post 2, the second limit post 2 causes the seventh push block to rotate 90 degrees around the first pin 11, and the chain stops moving. Cylinder 3 resets, and upper guide movable plate 7 presses the seventh push block down, so that the seventh push block rotates along the outer ring 14 of the chain. The chain continues to rotate. When the second push block moves to the changing position 15, the chain stops moving. The cylinder 3 pushes the cylinder push plate 4 to push the second push block upward. At the same time, the upper guide movable plate 7, the first limit post 1, and the second limit post 2 are also pushed up. After the second push block is pushed up, the chain continues to rotate. When the second push block touches the first limit post 1, the first limit post 1 causes the second push block to rotate 90 degrees around the first pin 11, so that the guide post 10 on the second push block enters the groove 5 of the upper guide plate and rotates along the inner ring 13 of the chain. At the same time, the cylinder 3 resets and the changing is half completed. The chain continues to rotate. When the fourth push block moves to the changing position 15, the fourth push block, the eighth push block, and the fifth push block complete the above actions of the first push block, the seventh push block, and the second push block, that is, the automatic changing of the carton specification is completed.

[0051] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0052] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A conveying mechanism, comprising a driving sprocket and a driven sprocket, and an annular chain connected between the driving sprocket and the driven sprocket, characterized in that: Multiple push blocks are arranged at intervals on the ring chain. The push blocks are hinged to the ring chain through a first pin and can rotate around the first pin. A shifting and flipping mechanism is provided at the shifting position of the push block movement path. The shifting and flipping mechanism is used to flip the push block from the inner ring of the ring chain to the outer ring of the ring chain or from the outer ring of the ring chain to the inner ring of the ring chain. The reversing mechanism includes two retractable blocking members. When the blocking members are retracted and moved to position one, the two blocking members are located on the moving path of the push block of the inner ring of the ring chain and the moving path of the push block of the outer ring chain, respectively, and are staggered along the length of the ring chain. When the blocking members are retracted and moved to position two, the two blocking members do not appear on the moving path of the push block of the inner ring chain and the moving path of the push block of the outer ring chain. The annular chain has an annular groove on one side, which includes a fixed groove and a movable groove. The fixed groove has an open section located at the changing position. The movable groove is located at the open section of the fixed groove and together with the fixed groove, they form a complete annular groove. The push block has a guide post. When the push block is located in the inner ring of the annular chain, the guide post is located in the annular groove. When the movable groove moves outward, the movable groove disengages from the open section of the fixed groove. An upper guide plate is provided on one side of the ring chain. A fixed groove is set on the inner side of the upper guide plate as the upper guide plate groove. The upper guide plate also has a notch at the opening section of the fixed groove. An upper guide movable plate is provided on one side of the notch of the upper guide plate. A movable groove is set on the inner side of the upper guide movable plate. The upper guide movable plate is connected to a cylinder through a cylinder push plate. The cylinder drives the upper guide movable plate to move back and forth through the cylinder push plate, thereby driving the movable groove to move back and forth through the upper guide movable plate.

2. The conveying mechanism as described in claim 1, characterized in that: The push block is provided with an arc-shaped guide groove, and a second pin is provided in the arc-shaped guide groove. The second pin is connected to the ring chain, and the center of the arc-shaped guide groove is the first pin.

3. The conveying mechanism as described in claim 1, characterized in that: The blocking component is connected to a cylinder, which is connected to the blocking component via a cylinder push plate. The cylinder drives the blocking component to extend and retract through the cylinder push plate.

4. The conveying mechanism as described in claim 1, characterized in that: The blocking component is a limit post.

5. The conveying mechanism as described in claim 1, characterized in that: The inner ring of the chain is equipped with a chain guide plate, and the chain moves on the outer ring of the chain guide plate.

6. The conveying mechanism as described in claim 5, characterized in that: The push block has a protrusion on its side plate. When the push block flips to the outer ring of the chain, the protrusion is located at the bottom edge of the push block at this time.

7. The conveying mechanism as described in claim 1, characterized in that: The pusher block flips between the inner and outer rings of the chain at a 90-degree angle; the pusher block is a right-angled triangle.

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