A device for continuously and synchronously raising and lowering a hopper

Abstract

The present invention discloses a device for continuously and synchronously moving up and down hoppers, which has a hopper changing device for driving the hopper to move between a first hopper conveying device and a second hopper conveying device, and the hopper changing device includes an annular conveying bar arranged above the first hopper conveying device and the second hopper conveying device, and at least a first and a second push block are fixed to the annular conveying bar, and the annular conveying bar is driven by a driving device to transmit and link the first and second push blocks to move cyclically therewith, and the first push block pushes the hopper to slide along the lower hopper channel from the first hopper conveying device to enter the second hopper conveying device, while the second push block pushes another hopper to slide along the upper hopper channel from the second hopper conveying device to enter the first hopper conveying device, and the position switching between the hopper positions is synchronized with the adjacent position switching of the first and second push blocks. The present invention is more reliable and accurate in long-term operation, and is easier to adjust and correct.

Description

Technical Field

[0001] The invention relates to the field of material conveying, and in particular to a device for continuously and synchronously raising and lowering a material hopper. Background Art

[0002] In the field of candy and toy packaging, it is often necessary to fill a variety of materials in a packaging bag or box. At present, a conveyor belt is mostly used to transport the hopper through multiple unloading devices in sequence, so that the hopper can receive multiple candies or toys and other objects in sequence, and then they are transported one by one to the elevator and input into the packaging machine for packaging. At present, multiple driving devices are usually arranged at specific positions to drive the hopper to move back and forth between the elevator and the conveyor belt. The start and stop sequence and time of multiple driving devices need to be precisely controlled. Errors are easy to accumulate during long-term operation, resulting in the inability to move the hopper in time and accurately, and the adjustment and correction are relatively complicated. Summary of the invention

[0003] The technical problem to be solved by the embodiments of the present invention is to provide a device for continuously and synchronously moving a hopper up and down, which is more reliable and accurate in long-term operation and easier to adjust and correct.

[0004] To achieve the above object, the present invention discloses a device for continuously and synchronously raising and lowering a hopper, comprising:

[0005] a first hopper conveyor;

[0006] a second hopper conveying device, the second hopper conveying device having a plurality of equidistant hopper positions for accommodating hoppers, the first and second hopper conveying devices having overlapping sections arranged side by side, the first and second hopper conveying devices being provided with an upper hopper passage for the hopper to slide from the second hopper conveying device into the first hopper conveying device, and a lower hopper passage for the hopper to slide from the first hopper conveying device into the second hopper conveying device between the overlapping sections;

[0007] A bucket changing device, the bucket changing device is used to drive the bucket to move between the first bucket conveying device and the second bucket conveying device, the bucket changing device includes an annular conveying bar arranged above the first bucket conveying device and the second bucket conveying device, the annular conveying bar is fixed with at least a first and a second push block, the annular conveying bar is driven by a driving device to convey and link the first and second push blocks to move cyclically therewith, the first push block pushes the bucket to slide along the lower bucket channel from the first bucket conveying device to enter the second bucket conveying device, while the second push block pushes the other bucket to slide along the upper bucket channel from the second bucket conveying device to enter the first bucket conveying device, the position switching between the bucket positions is synchronized with the adjacent position switching of the first and second push blocks.

[0008] Preferably, the annular conveying strip is an annular conveying chain.

[0009] Preferably, the first hopper conveying device is provided with a blocking bar at the entrance of the lower hopper channel, which is used to block the hopper so that the hopper stops at the entrance of the lower hopper channel and waits for the push of the push block.

[0010] Preferably, the annular conveying strip is tensioned on four rollers to be in a quadrilateral shape, and the quadrilateral has parallel and opposite first and second sides, the first side is located above the upper bucket channel, and the second side is located above the lower bucket channel.

[0011] Preferably, a clamping pin is fixedly connected to the bottom surface of the hopper, and the clamping pin of the hopper is clamped in the hopper position so that the hopper is locked on the second hopper conveying device and will not fall off.

[0012] Preferably, the hopper position includes a fixed top plate and a bottom plate, and the locking pin is slidably inserted between the top plate and the bottom plate to achieve locking.

[0013] Preferably, the top plate has a trumpet-shaped opening extending from the second hopper conveying device toward the first hopper conveying device.

[0014] Preferably, one end of the second hopper conveying device is arranged above the feed port of the packaging machine. When the hopper moves to the top of the feed port of the packaging machine along with the conveyance of the second hopper conveying device, the hopper flips around the end of the second hopper conveying device along with the conveyance of the second hopper conveying device until the opening faces downward, thereby pouring the material into the feed port of the packaging machine.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] By setting a circular conveyor strip to circulate and convey the push block to push the hopper, only one driving device is needed to drive the hopper to move back and forth between the two conveyor belts, and the pushing time point can be adjusted by adjusting only one parameter of the conveying speed, which makes the adjustment more convenient and quick;

[0017] By using the ring conveyor chain as the ring conveyor bar, the operation of the push block is more precise and the stability of long-term operation is higher;

[0018] By reasonably setting the spacing and moving speed of the push blocks, the upper and lower bucket processes of the hopper can be carried out synchronously, with high efficiency and accurate and stable pushing time points. The push of the push block corresponds to the hopper position one by one to achieve continuous pushing without stopping and without empty positions. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the overall structure of the bucket changing device according to an embodiment of the present invention;

[0021] Figure 3 It is a schematic diagram of the overall structure of the hopper position and the clamping pins according to an embodiment of the present invention. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the present invention clearer, the following will be combined with Figure 1-Figure 3 The present invention is further described in detail with reference to the accompanying drawings.

[0023] Reference Figure 1-Figure 3 As shown, a device for continuously and synchronously holding hoppers in upper and lower positions comprises a first hopper conveying device 1, a second hopper conveying device 2, and a hopper changing device 3 arranged above the first hopper conveying device 1 and the second hopper conveying device 2.

[0024] The first and second hopper conveying devices 1 and 2 have overlapping sections arranged side by side, and a lower hopper channel 5 for the hopper 6 to slide from the first hopper conveying device 1 into the second hopper conveying device 2, and an upper hopper channel 4 for the hopper 6 to slide from the second hopper conveying device 2 into the first hopper driving device 1 are provided between the overlapping sections.

[0025] A plurality of hoppers 6 are placed on the first hopper conveyor 1. The hoppers 6 are cylindrical and have a clamping pin fixed to the bottom of the hoppers 6. The second hopper conveyor 2 has a plurality of hopper positions 7 for accommodating the clamping pins for cyclic transmission at equal intervals. The hopper position 7 includes a fixed top plate 71 and a bottom plate 72. The clamping pin is slidably inserted between the top plate 71 and the bottom plate 72 to achieve locking. The top plate 71 has a trumpet-shaped opening 73 from the second hopper conveyor 2 toward the first hopper conveyor 1. The clamping pin includes a first clamping pin 61 fixed to the bottom of the hopper 6 and a first clamping pin 62 fixed to the first clamping pin 63. The second engaging pin 62 at the lower end of the pin 61 has a width greater than that of the first engaging pin 61; when the bucket changing device 3 pushes the material containing bucket 6 to slide from the first bucket conveying device 1 along the lower bucket channel 5 into the second bucket conveying device 2, the first engaging pin 61 is slidably inserted into the trumpet-shaped opening 73, and the second engaging pin 62 slides differentially between the top plate 71 and the bottom plate 72. The width of the second engaging pin 62 is greater than that of the trumpet-shaped opening 73, so that when the material containing bucket 6 moves with the second bucket conveying device 2 to the opening facing downward, it is limited by the bucket position 7 and will not fall.

[0026] The end of the second hopper conveying device 2 is arranged above the feed port 81 of the packaging machine 8. When the hopper 6 moves to above the feed port 81 of the packaging machine 8 along with the transmission of the second hopper conveying device 2, the hopper 6 is turned around the end of the second hopper conveying device 2 along with the transmission of the second hopper conveying device 2 to the opening facing downward, thereby pouring the material into the feed port 81 of the packaging machine 8, and then the hopper 6 continues to be conveyed to the other end at the bottom side of the second hopper conveying device 2 and turns to the top surface of the second hopper conveying device 2 for being pushed by the hopper changing device 3.

[0027] The bucket changing device 3 includes an annular conveying bar 33 disposed above the first bucket conveying device 1 and the second bucket conveying device 2. At least two push blocks are fixedly connected to the annular conveying bar 33. In this embodiment, the first and second push blocks 31 and 32 are preferably included. The annular conveying bar 33 is driven by a driving device to transmit and link the first and second push blocks 31 and 32 to move cyclically. The first push block 31 pushes the bucket 6 from the first bucket conveying device 1 along the lower bucket channel 5 to the previous bucket position 7 on the second bucket conveying device 2. At the same time, the second push block 32 pushes the bucket 6 from the next bucket position 7 on the second bucket conveying device 2 along the upper bucket channel 4 to the first bucket conveying device 1. When the moving distance of the first push block 31 is equal to the spacing between the first and second push blocks 31 and 32, the moving distance of the bucket position 7 is equal to the spacing between two adjacent bucket positions 7.

[0028] The annular conveying bar 33 is tensioned on four rollers 34 to form a quadrilateral shape, which has parallel and opposite first and second sides. The first side is located above the upper bucket channel 4, and the second side is located above the lower bucket channel 5. When the first and second push blocks 31 and 32 pass the first side, they are used to push the bucket 6 to slide along the upper bucket channel 4 into the first bucket conveying device 1. When the first and second push blocks 31 and 32 pass the second side, they are used to push the bucket 6 to slide along the lower bucket channel 5 into the second bucket conveying device 2.

[0029] The circulating feeding conveyor 1 is provided with a blocking bar 11 at the entrance of the lower hopper passage 5 for blocking the material hopper 6 so that the material hopper 6 cannot continue to convey and stops at the entrance of the lower hopper passage 5 waiting for the push of the first push block 31 or the second push block 32.

[0030] The annular conveying bar 33 is preferably an annular conveying chain, and the roller 34 is preferably a sprocket, so that the transmission of the annular conveying bar 33 is more accurate, the operation is more stable for a long time, and it is not easy to have problems such as slipping and failure.

[0031] Reference Figure 1-Figure 3 The process of realizing the automatic upper and lower conveyor belt of the hopper in the present invention is as follows:

[0032] The material-containing hopper 6 is placed above the first hopper conveying device 1 and circulated and conveyed one by one through several loaders to receive materials. When the material-containing hopper 6 is transferred to the entrance of the lower hopper channel 5 after being filled with materials, it is blocked by the blocking bar 11 and cannot continue to be conveyed. The first pushing block 31 moves with the transmission of the annular conveying bar 33 to push the material-containing hopper 6 from the first hopper conveying device 1 along the lower hopper channel 5 into the hopper position 7 on the second hopper conveying device 2. At the same time, the second pushing block 32 pushes the material-containing hopper 6 from the hopper position 7 on the second hopper conveying device 2 along the upper hopper channel 4 into the first hopper conveying device 1.

[0033] After the hopper 6 that has received the material on the first hopper conveying device 1 is pushed by the hopper changing device 3 into the second hopper conveying device 2, the hopper 6 moves with the conveyance of the second hopper conveying device 2 to above the feed port 81 of the packaging machine 8, and the hopper 6 continues to be turned around the end of the second hopper conveying device 2 with the conveyance of the second hopper conveying device 2 to the opening facing downward, thereby pouring the material into the feed port 81 of the packaging machine 8, and then the emptied hopper 6 continues to be conveyed to the other end at the bottom side of the second hopper conveying device 2 and turned to the top surface of the second hopper conveying device 2 for the hopper changing device 3 to push it back to the first hopper conveying device 1 for a new round of material receiving.

[0034] Of course, the above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any modifications made according to the spirit of the main technical solution of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for continuously and synchronously moving a hopper up and down, characterized in that: include: a first hopper conveying device, on which a plurality of hoppers are placed; a second hopper conveying device, the second hopper conveying device having a plurality of equidistant cyclically conveyed hopper positions for accommodating the hopper, the first and second hopper conveying devices having overlapping sections arranged side by side, the first and second hopper conveying devices being provided with an upper hopper passage for the hopper to slide from the second hopper conveying device into the first hopper conveying device, and a lower hopper passage for the hopper to slide from the first hopper conveying device into the second hopper conveying device between the overlapping sections; A bucket changing device, the bucket changing device is used to drive the material-containing bucket to move between the first bucket conveying device and the second bucket conveying device, the bucket changing device includes an annular conveying bar arranged above the first bucket conveying device and the second bucket conveying device, the annular conveying bar is fixed with at least a first and a second push block, the annular conveying bar is driven by a driving device to transmit and link the first and second push blocks to move cyclically therewith, the first push block pushes the material-containing bucket to slide along the lower bucket channel from the first bucket conveying device to enter the second bucket conveying device, while the second push block pushes another material-containing bucket to slide along the upper bucket channel from the second bucket conveying device to enter the first bucket conveying device, and the position switching between the bucket positions is synchronized with the adjacent position switching of the first and second push blocks; The first hopper conveying device is provided with a blocking bar at the entrance of the lower hopper channel, which is used to block the hopper so that the hopper stops at the entrance of the lower hopper channel and waits for the push of the push block; The annular conveying strip is stretched on four rollers to form a quadrilateral shape, wherein the quadrilateral has parallel and opposite first and second sides, wherein the first side is located above the upper bucket channel, and the second side is located above the lower bucket channel; The bottom surface of the hopper is fixedly connected with a clamping pin, and the clamping pin of the hopper is clamped in the hopper position so that the hopper is locked on the second hopper conveying device and will not fall off; The hopper position includes a fixed top plate and a bottom plate, and the card pin is slidably inserted between the top plate and the bottom plate to achieve locking; The top plate has a trumpet-shaped opening from the second hopper conveyor toward the first hopper conveyor.

2. The device for continuously and synchronously moving up and down the hopper according to claim 1 is characterized in that: The annular conveying bar is an annular conveying chain.

3. The device for continuously and synchronously moving up and down the hopper according to claim 1, characterized in that: One end of the second hopper conveying device is arranged above the feeding port of the packaging machine. When the hopper moves to the above the feeding port of the packaging machine along with the transmission of the second hopper conveying device, the hopper turns over around the end of the second hopper conveying device along with the transmission of the second hopper conveying device until the opening faces downward, thereby pouring the material into the feeding port of the packaging machine.

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