An intermittent material accumulation device and packaging line

Abstract

The utility model relates to a kind of intermittent material accumulation device and packaging production line, including feed conveying mechanism, accumulation mechanism, push out mechanism and controller, accumulation mechanism includes two groups or two groups or more each independent operation drive mechanism, each group of drive mechanism drives multiple groups of material grid group to move in the way of stepping along circumference, the material grid group on different groups of drive mechanism is staggered arrangement in running direction, controller is configured to make the material grid group driven by different groups of drive mechanism enter feed accumulation position and discharge position in turn staggered with feed conveying mechanism and with push out mechanism, material into discharge position is pushed out by push out mechanism to next station.The utility model simultaneously sets up multiple groups of drive mechanism in one accumulation device, respectively drives multiple groups of material grid group to move, not only can greatly improve the efficiency of accumulation operation, improve the discharge speed of discharge position, to greatly improve the packaging speed of discharge mechanism, improve packaging efficiency, reduce manufacturing cost.

Description

Technical Field

[0001] This utility model belongs to the field of packaging machinery technology, and specifically relates to an intermittent material accumulation device and packaging production line. Background Technology

[0002] Currently, for the convenience of users, as well as for transportation and sales, products such as instant noodles, wet wipes, and snacks are first packaged into small bags according to weight, volume, and number of pieces. Then, a certain number of small bags are packaged into a large bag using a packaging production line, such as a five-pack of instant noodles or a ten-pack of wet wipes, to facilitate product transportation and sales.

[0003] On packaging production lines, a collection device is typically used to sort and group a certain number of small bags of products and then transport them to a large packaging bag machine. Chinese patent number 202020170064.7 discloses a continuous single-servo collector. This collector has multiple circumferentially moving material compartments. Material conveyed by a feed conveyor belt enters the compartments sequentially, is uprighted and counted, and is then grouped and collected at the collection station by rotation. A dispensing mechanism dispenses a specified number of materials from the collection station, which are then transported by a conveyor belt to the packaging station for packaging.

[0004] The aforementioned accumulator uses a single servo motor driven mechanism. Because the material needs to be briefly stationary when it reaches the ejection station, the feed grid at the feeding station also stops operating synchronously, only to restart after ejection. This prevents the accumulator from achieving truly continuous operation, requiring frequent restarts of the feeding and feed grid drive mechanisms. This significantly reduces operational efficiency and causes considerable vibration and noise during operation. If the accumulator is to remain continuously moving during ejection, the material at the discharge station will become skewed during the ejection period. This necessitates manual reorganization to ensure the material group is neatly arranged before entering the packaging station, reducing the automation level of the device. Furthermore, the spacing between the baffles on both sides of the conveyor belt at the discharge end needs to be increased to ensure all material can smoothly enter the conveyor belt, all of which significantly increases manufacturing costs. Furthermore, the material feeding plate used in the existing accumulator is a flat structure. When feeding, due to the obstruction of the material grid, the feeding plate can only feed the part of the material that is higher than the material grid, that is, it can only feed the top part of the material. This will cause instability during feeding, and it is easy to cause problems such as not being able to feed or the material tilting forward. This seriously affects the feeding quality and feeding efficiency, and additional equipment or manpower is required to straighten the material to be packaged, which increases the manufacturing cost.

[0005] In addition, existing collection devices all use only one collection unit. Since the action of the dispensing mechanism to dispense materials through reciprocating motion is intermittent, the interval between the material groups delivered to the discharge station is also large, which will greatly affect the packaging efficiency. Utility Model Content

[0006] The main technical problem solved by this utility model is to provide an intermittent material accumulation device that can improve packaging efficiency and reduce manufacturing costs, and to provide a packaging production line using the intermittent material accumulation device.

[0007] To solve the above-mentioned technical problems, the first technical solution adopted by this utility model is:

[0008] An intermittent material accumulation device includes a feeding conveying mechanism, an accumulation mechanism, a dispensing mechanism, and a controller. The accumulation mechanism includes two or more sets of independently operating drive mechanisms. Each set of drive mechanisms drives multiple sets of material grids to move in a stepping manner along the circumference. The material grids on different sets of drive mechanisms are staggered in the running direction. The controller is configured to cause the material grids driven by different sets of drive mechanisms to enter the feeding accumulation position connected to the feeding conveying mechanism and the discharge position connected to the dispensing mechanism in a staggered manner. The material entering the discharge position is dispensed to the next station by the dispensing mechanism.

[0009] Furthermore, each group of drive mechanisms includes a servo motor and a transmission component. The transmission components in multiple groups of drive mechanisms are arranged in parallel and run in the same direction. The servo motor drives the corresponding transmission component to perform circular motion. Multiple sets of material grids are intermittently installed on each group of transmission components. The transmission component is a transmission belt or a transmission chain.

[0010] Furthermore, two parallel mounting plates are installed on the frame, multiple sets of the transmission components are installed in parallel between the two mounting plates, and multiple servo motors are installed on the same mounting plate.

[0011] Furthermore, a material detection device is installed at the feed end of the material grid group, and the controller is also configured to control the stepping action of the drive mechanism to align the next material grid with the injection port after the material detection device detects that the material has entered the corresponding material grid.

[0012] Furthermore, the material grid assembly consists of multiple material grids and a base plate, with the material grids installed at equal intervals on the base plate, and the base plate being fixedly connected to the corresponding drive mechanism.

[0013] Furthermore, the feeding mechanism includes a feeding plate, a feeding servo motor, and a feeding transmission mechanism. The feeding servo motor drives the feeding plate to reciprocate through the feeding transmission mechanism to push the material entering the discharge position to the next station in groups. The feeding plate adopts a forked claw structure, and the number of claws is equal to the number of material cells in the material cell group. The feeding plate extends into the corresponding material cell to feed the material.

[0014] Furthermore, the push-out transmission mechanism and the push-out servo motor are mounted on the frame and positioned above the material discharge position. The push-out transmission mechanism includes a horizontal moving mechanism and a lifting mechanism. The lifting mechanism is mounted on the horizontal moving mechanism, and the push-out plate is mounted on the lifting mechanism. The push-out transmission mechanism drives the push-out plate to perform reciprocating motions back and forth and up and down.

[0015] Furthermore, the feeding conveying mechanism, the accumulation mechanism, and the dispensing mechanism are all provided in two sets. The two sets of accumulation mechanisms are respectively connected to one set of feeding conveying mechanism, and the two sets of dispensing mechanisms alternately dispensing the material conveyed to the discharge position in the corresponding accumulation mechanism.

[0016] Furthermore, the two sets of feeding and conveying mechanisms are respectively located on both sides of the frame, the two sets of accumulation mechanisms are installed in parallel, the material movement direction in the two sets of accumulation mechanisms is opposite, and a discharge mechanism is installed on one side of one set of accumulation mechanisms, so that the material in both sets of accumulation mechanisms is pushed onto the discharge mechanism.

[0017] To solve the above-mentioned technical problems, the second technical solution adopted by this utility model is:

[0018] A packaging production line, wherein the discharge end of the accumulation mechanism is connected to the discharge mechanism, the discharge mechanism includes a discharge conveying mechanism and a packaging machine connected in sequence, the material dispensed by the dispensing mechanism enters the discharge conveying mechanism and is then conveyed to the packaging machine; or, the discharge mechanism is the packaging machine, and the material dispensed by the dispensing mechanism directly enters the packaging machine.

[0019] In summary, the intermittent material accumulation device and packaging production line provided by this utility model have the following advantages compared with the prior art:

[0020] (1) This utility model sets multiple sets of driving mechanisms in a single accumulation device, which drive multiple sets of material grids to move in a circular motion along the circumference, so that the movement of the material grids on the multiple sets of driving mechanisms will not affect each other. This not only greatly improves the efficiency of the accumulation operation, but also increases the discharge speed of the discharge position, greatly increases the packaging speed of the discharge mechanism, and improves the packaging efficiency, but also helps to reduce manufacturing costs.

[0021] (2) This utility model can ensure that the material is in a static state when it is in the discharge position. When it is pushed outward by the dispensing mechanism, the material arrangement direction is consistent with the running direction of the dispensing mechanism. It will not cause an angle between the material and the running direction of the dispensing mechanism, thus ensuring the quality of the material discharge. It is also conducive to simplifying the structure of the dispensing mechanism, saving manpower, and further reducing production costs.

[0022] (3) In this utility model, the material feeding plate adopts a forked claw structure, which allows the material feeding plate to extend into the corresponding material compartment to feed the material when feeding, and even approach the bottom of the material. This ensures that the material is fed smoothly and will not cause the material to tilt and overturn due to the high feeding point. This ensures the feeding quality and feeding efficiency. There is no need to configure additional equipment or manpower to straighten the material to be packaged, which saves time and reduces manufacturing costs.

[0023] (4) This utility model adopts two sets of feeding conveying mechanisms, two sets of accumulation mechanisms and two sets of dispensing mechanisms to push materials into the dispensing mechanism in an alternating manner, which can further improve the dispensing speed of the dispensing position, thereby greatly improving the packaging speed of the dispensing mechanism, improving packaging efficiency, and helping to reduce manufacturing costs. It also helps to reduce the footprint of the entire equipment.

[0024] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0025] The accompanying drawings, as part of this utility model, are used to provide a further understanding of the present utility model. The illustrative embodiments and descriptions of the present utility model are used to explain the present utility model, but do not constitute an undue limitation of the present utility model. Obviously, the drawings described below are merely some embodiments; those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0026] In the attached diagram:

[0027] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the intermittent material accumulation device of this utility model;

[0028] Figure 2 This is a schematic diagram of the accumulation mechanism of this utility model;

[0029] Figure 3 This is a schematic diagram of the structure of Embodiment 2 of the intermittent material accumulation device of this utility model;

[0030] Figure 4 yes Figure 3 Side view.

[0031] In the picture:

[0032] Feeding conveyor mechanism 1, conveyor belt 11;

[0033] Accumulation mechanism 2, drive mechanism 21, servo motor 211, transmission assembly 212, chain 2121, material grid group 22, material grid 221, base plate 222.

[0034] Dispensing mechanism 3, dispensing plate 31, dispensing servo motor 32, dispensing transmission mechanism 33, horizontal moving mechanism 331, ball screw 3311, lifting mechanism 332, guide rod 34, connecting rod 35;

[0035] 4. Discharge mechanism; 5. Frame; 6. Material; 7. Mounting plate; 8. Bracket; 9. Storage cabinet.

[0036] It should be noted that the accompanying drawings and text description are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0038] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", and "outer" 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 utility model 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 utility model.

[0039] In the description of this utility model, 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0040] Example 1:

[0041] like Figure 1 and Figure 2As shown, this utility model provides an intermittent material accumulation device, including a feeding conveying mechanism 1, an accumulation mechanism 2, a dispensing mechanism 3, a discharging mechanism 4, and a controller (not shown in the figure). In this embodiment, the accumulation device is provided with a set of feeding conveying mechanism 1, accumulation mechanism 2, dispensing mechanism 3, and discharging mechanism 4. The accumulation mechanism 2, dispensing mechanism 3, and controller are all mounted on the frame 5.

[0042] In this embodiment, the frame 5 is constructed by splicing and welding stainless steel beams or stainless steel profiles, and consists of a lower base frame and an upper support frame. The accumulation mechanism 2 is installed on the lower base frame, while the extraction mechanism 3 is installed on the upper support frame. For ease of operation, a storage cabinet 9 is also welded to the base frame of the frame 5, allowing operators to store tools and other necessary production equipment.

[0043] In this embodiment, the feeding conveying mechanism 1 is located on one side of the frame 5 and is used to linearly convey the material 6 to the accumulation mechanism 2. The accumulation mechanism 2 is used to group and accumulate the material 6 conveyed by the feeding conveying mechanism 1 and convey it to the discharge position. The dispensing mechanism 3 is located above the discharge position of the accumulation mechanism 2. The dispensing mechanism 3 intermittently dispenses the material 6 entering the discharge position into the discharge mechanism 4, and then the material is sent to the packaging machine for packaging via the discharge mechanism 4.

[0044] In this embodiment, it is further preferred that the feeding conveying mechanism 1 adopts a belt conveying mechanism, which consists of a conveyor belt 11 and a feeding drive mechanism (not shown in the figure). The material 6 is arranged in a single row on the conveyor belt 11. The conveyor belt 11 moves at a uniform speed, and the material 6 is transported to the accumulation mechanism 2 at a uniform speed in sequence.

[0045] In this embodiment, the accumulation mechanism 2 includes two or more sets of independently operating drive mechanisms 21. Each drive mechanism 21 drives multiple sets of material grids 22 to move in a stepping manner along the circumference. The running direction of the material grids 22 is perpendicular to the running direction of the conveyor belt 11 in the feeding conveyor mechanism 1. Multiple sets of material grids 22 are intermittently arranged along the circumference on the corresponding drive mechanisms 21. The number of material grids 22 connected to each drive mechanism 21 is set according to the total length of the drive mechanism 21 and the production cycle. Each set of material grids 22 has multiple material grids 221, which are arranged at equal intervals along the circumference. The conveyed material 6 enters different material grids 221 in sequence. The material grids 221 realize the standing up, counting, and circumferential movement of the material 6 to complete the accumulation of a set of material 6. The number and spacing of material grids 221 in each set are set according to packaging requirements, such as five or ten material grids 221 in each set. Of course, the material grid group 22 can also be designed with the maximum number of material grids 221, such as ten material grids 221. For cases where there are fewer than ten materials 6 in a group, only a relative number of material grids 221 can be used. The feeding conveying mechanism 1 moves at a constant speed, feeding the materials 6 into the material grids 221 in sequence. After accumulating to the quantity of a group, the materials are quickly conveyed to the discharge position.

[0046] In this embodiment, the material grid groups 22 on different groups of drive mechanisms 21 are arranged alternately in the running direction. For example, according to the running direction of the material 6, the material grid groups 22 installed on the first group of drive mechanisms 21, the first group of material grid groups 22 installed on the second group of drive mechanisms 21, the second group of material grid groups 22 installed on the first group of drive mechanisms 21, the second group of material grid groups 22 installed on the second group of drive mechanisms 21, and so on, are arranged in sequence. The controller is configured to cause the material grid groups 22 driven by different groups of drive mechanisms 21 to enter the feeding accumulation position docked with the feeding conveying mechanism 1 and the discharge position docked with the dispensing mechanism 3 in an alternate manner. The material 6 entering the discharge position is dispensed by the dispensing mechanism 4 to the next station (i.e., the discharge mechanism 4).

[0047] In this embodiment, it is further preferred that the accumulation mechanism 2 includes two sets of drive mechanisms 21, each set of drive mechanisms 21 driving at least two sets of material grid groups 22 to move circumferentially. Preferably, each set of drive mechanisms 21 drives two, three, or four sets of material grid groups 22 to move circumferentially. Thus, for an accumulation device, a total of four, six, or eight sets of material grid groups 22 are provided to alternately enter the feeding accumulation position and the discharge position.

[0048] Taking a scenario where four sets of material grids 22 are set on two sets of drive mechanisms 21 as an example, when the controller controls the first set of material grids 22 on the first set of drive mechanisms 21 to be in the discharge position, it controls the first set of material grids 22 on the second set of drive mechanisms 21 to be in the feeding accumulation position, which is used to receive the material 6 conveyed by the feeding conveyor 1. The material 6 is sequentially injected into the corresponding material grids 221. When the first set of material grids 22 on the second set of drive mechanisms 21 enters the discharge position, the first set of material grids 22 on the first set of drive mechanisms 21 (at this time, there is no material 6 in the material grids 22) moves out of the discharge position, and the second set of material grids 22 on the first set of drive mechanisms 21 just enters the feeding accumulation position, which is used to receive the material 6 conveyed by the feeding conveyor 1. They enter the feeding accumulation position and the discharge position in the above order in an alternating manner.

[0049] In this way, the movement of the material grid groups 22 on the two sets of drive mechanisms 21 will not affect each other. When one set of material grid groups 22 on one set of drive mechanisms 21 is in a brief static state at the discharge position, it will not affect the movement of the material grid groups 22 on the other set of drive mechanisms 21 to the feeding accumulation position to receive the accumulated material 6. By using multiple sets of drive mechanisms 21, not only can the efficiency of intermittent accumulation operations be greatly improved, but the discharge speed at the discharge position can also be increased, the packaging speed of the discharge mechanism can be greatly increased, and the packaging efficiency can be improved, which is conducive to reducing manufacturing costs. In addition, it can also ensure that the material 6 is in a static state at the discharge position. When it is pushed outward by the push-out mechanism 3, the arrangement direction of the material 6 is consistent with the running direction of the discharge mechanism 4, so that there is no angle between the running direction of the material 6 and the running direction of the discharge mechanism 4, and no skewness occurs. This ensures the quality of discharge, simplifies the structure of the discharge mechanism 4, saves manpower, and further reduces production costs.

[0050] In this embodiment, preferably, each drive mechanism 21 includes a servo motor 211 and a transmission assembly 212. More preferably, the transmission assembly 212 uses chain drive, including a chain 2121 and two sprockets (not shown in the figure). The two sprockets include a driving sprocket and a driven sprocket, wherein the driving sprocket is connected to the output shaft of the corresponding servo motor 211. Of course, the transmission assembly 212 can also use a belt drive assembly. The transmission chains 2121 in the two drive mechanisms 21 are arranged in parallel and run in the same direction. The servo motor 211 drives the corresponding chain 2121 to perform circular motion. Multiple material grid groups 22 in each drive mechanism 21 are installed at intervals on the same transmission chain 2121. Multiple material grid groups 22 in different groups are staggered on the two transmission chains 2121 in the direction of material 6 running.

[0051] In this embodiment, two parallel mounting plates 7 are installed on the frame 5, and two chains 2121 are installed in parallel between the two mounting plates 7. Two servo motors 211 are installed on the outer side of the mounting plate 7 (i.e., the side away from the discharge mechanism 4) through the bracket 8. The two servo motors 211 are respectively installed at both ends of the mounting plate 7. The output shafts of the servo motors 211 are rotatably mounted on the two mounting plates 7. Under the drive of the two servo motors 211, the two chains 2121 move in a circumferential direction.

[0052] In this embodiment, each set of material grids 22 includes a predetermined number of material grids 221 and a base plate 222. The predetermined number of material grids 221 are fixed to a base plate 222 by screws. The material grids 221 are installed vertically on the base plate 222 at equal intervals. The length of the base plate 222 can span two chains 2121, but the base plate 222 is only fixedly connected to one of the corresponding chains 2121 below it by fasteners. This ensures that the material grids 22 installed on the two sets of drive mechanisms 21 are in the same position at the discharge position. The ejector mechanism 3 does not need to change the ejection position, but it can speed up the ejection cycle, which not only improves production efficiency but also helps to further reduce production costs. In addition, the installation height of the top surface of the mounting plate 7 should be the same as or slightly lower than the base plate 222 to ensure that the material 6 can smoothly pass through the mounting plate 7 and enter the discharge mechanism 4.

[0053] Most of the materials 6 are arranged sequentially at equal intervals on the conveyor belt 11, but there are also instances of unequal intervals. Multiple material grids 221 (five or ten) in each material grid group 22 are arranged at equal intervals. In this embodiment, it is further preferred that an infeed detection device is installed at the feed end of the material grid group 22. The infeed detection device preferably uses a feed sensor (not shown in the figure). After a material 6 is injected into a material grid 221, the servo motor 211 steps forward, aligning the next material grid 221 with the injection port. The stepping motion continues until the next material 6 enters the next material grid 221. In this way, regardless of whether the materials 6 on the feeding conveyor 1 are evenly arranged, they can be accurately injected into the corresponding material grid 221. Furthermore, the control logic is simple, and the stepping motion does not cause significant vibration or noise. After all the materials 6 in a set of feed grids 22 have been injected into the corresponding feed grids 221, the servo motor 211 drives the set of feed grids 22 to move quickly to the discharge position. It stops briefly at the discharge position, and the ejector mechanism 3 pushes the set of materials 6 into the discharge mechanism 4. After being ejected, the servo motor 211 drives it to move circumferentially until it reaches the feed accumulation position to receive the next set of materials 6. The feed grids 22 on the two-phase chains 2121 are controlled independently.

[0054] In this embodiment, preferably, the feeding mechanism 3 includes a feeding plate 31, a feeding servo motor 32, and a feeding transmission mechanism 33, which are fixedly mounted on the frame 5 above the chain 2121. The feeding servo motor 32 drives the feeding plate 31 to reciprocate back and forth and up and down in a direction perpendicular to the chain 2121 via the feeding transmission mechanism 33, thereby intermittently pushing the material 6 that has been fed to the discharge position on the two chains 2121 to the discharge mechanism 4. By controlling the cycle time, it can be ensured that the material 6 is pushed to the discharge mechanism 4 at equal intervals.

[0055] like Figure 1 As shown, the feeding mechanism 3 simultaneously feeds out a specified number of materials 6 from the discharge position and transports them to the next station. More preferably, the feeding plate 31 adopts a forked claw structure, with the number of claws equal to the number of material compartments 221. When feeding, the feeding plate 31 can extend into the corresponding material compartment 221 to feed the materials 6, even approaching the bottom of the materials 6. This ensures stable feeding of the materials 6 and prevents the materials 6 from flipping due to an excessively high feeding point, thus guaranteeing feeding quality. No additional equipment or manpower is needed to properly position the materials 6 to be packaged, saving time and reducing manufacturing costs.

[0056] like Figure 1 As shown, in this embodiment, the feeding transmission mechanism 33 includes a horizontal moving mechanism 331 and a lifting mechanism 332. The lifting mechanism 332 is mounted on the horizontal moving mechanism 331, and the feeding plate 31 is mounted on the lifting mechanism 332. The horizontal moving mechanism 331 and the lifting mechanism 332 drive the feeding plate 31 to perform reciprocating movements in the direction of forward, upward, backward, downward and forward, thereby completing the action of feeding out the material and returning to the initial feeding position.

[0057] In this embodiment, the horizontal moving mechanism 331 is further preferably a ball screw transmission mechanism. One end of the ball screw 3311 is connected to the output end of the feed servo motor 32, and the other end of the ball screw 3311 is rotatably connected to the frame 5. The feed plate 31 is fixed to the nut (not shown in the figure) on the ball screw 3311 through the lifting mechanism 332. When the feed servo motor 32 rotates forward and backward, it drives the ball screw 3311 to rotate forward and backward, thereby driving the nut to make a linear reciprocating motion in the horizontal direction. Even more preferably, two parallel guide rods 34 are also installed on the frame 5. The two guide rods 34 are installed on both sides of the ball screw 3311. The nut is slidably connected to the two guide rods 34 through a connecting plate (not shown in the figure) to ensure the straightness of the nut when it moves along the ball screw 3311.

[0058] In this embodiment, the lifting mechanism 332 preferably adopts a lifting cylinder or a lifting motor. The material feeding plate 31 is installed at the output end of the lifting cylinder or the lifting motor. After feeding the material, the material feeding plate 31 moves upward to the initial height, moves backward to the feeding position, moves downward to the feeding height, and moves forward to feed the material 6. This cycle repeats.

[0059] The above technical solution has the following advantages:

[0060] 1. This solution simultaneously sets multiple sets of drive mechanisms 21 in an accumulation device, which drive multiple sets of material grids 22 to move in a circular motion along the circumference. This ensures that the movement of the material grids 22 on the multiple sets of drive mechanisms 21 will not affect each other. This not only greatly improves the efficiency of the accumulation operation, but also enables truly continuous movement, further increasing the discharge speed of the discharge position, significantly increasing the packaging speed of the discharge mechanism, improving packaging efficiency, and helping to reduce manufacturing costs.

[0061] 2. This scheme can ensure that the material 6 is stationary at the discharge position. When the material is pushed outward by the dispensing mechanism 3, the arrangement direction of the material 6 is consistent with the running direction of the dispensing mechanism 4. It will not cause an angle between the material 6 and the running direction of the dispensing mechanism 4, thus ensuring the quality of the discharge. It also helps to simplify the structure of the dispensing mechanism 4, save manpower, and further reduce production costs.

[0062] 3. In this solution, the feeding plate 31 adopts a forked claw structure, which allows the feeding plate 31 to extend into the corresponding material compartment to feed the material 6, and even approach the bottom of the material. This ensures that the material is fed smoothly and will not cause the material to tilt and overturn due to the feeding point being too high. This ensures feeding quality and efficiency, and eliminates the need for additional equipment or manpower to straighten the material to be packaged, saving time and reducing manufacturing costs.

[0063] Example 2:

[0064] like Figure 3 and Figure 4 As shown, the difference from Embodiment 1 is that in this embodiment, the feeding conveying mechanism 1, the accumulation mechanism 2 and the dispensing mechanism 3 are each provided in two sets. The feeding conveying mechanism 1, the accumulation mechanism 2 and the dispensing mechanism 3 are provided in a one-to-one correspondence. One set of accumulation mechanism 2 is connected to one set of feeding conveying mechanism 1, and one set of dispensing mechanism 3 corresponds to one set of accumulation mechanism 2. The two sets of dispensing mechanisms 3 alternately dispensing the material 6 that is conveyed to the discharge position in the corresponding accumulation mechanism 2.

[0065] Two sets of feeding conveyor mechanisms 1 are respectively located on both sides of the frame 5. Two sets of accumulation mechanisms 2 are respectively connected to one of the feeding conveyor mechanisms 1, conveying material 6 from both sides of the frame 5 to the two sets of accumulation mechanisms 2 in the middle. The two sets of accumulation mechanisms 2 are installed in parallel, and the movement direction of the material 6 in the two sets of accumulation mechanisms 2 is opposite. Two sets of ejection mechanisms 3 are located in the middle of the two feeding conveyor mechanisms 1, corresponding to the two sets of accumulation mechanisms 2. The two sets of ejection mechanisms 3 are staggered and eject the material 6 at the corresponding discharge position. A discharge mechanism 4 is installed on one side of one set of accumulation mechanisms 2. The material 6 in the two sets of accumulation mechanisms 2 is ejected by the two sets of ejection mechanisms 3 to the same set of discharge mechanism 4. The material 6 at the discharge position closer to the discharge mechanism 4 is directly pushed into the discharge mechanism 4 by the corresponding ejection mechanism 3. The material 6 at the discharge position farther from the discharge mechanism 4 is ejected by the ejection mechanism 3, crosses the other set of accumulation mechanisms 2, and then enters the discharge mechanism 4.

[0066] In this embodiment, the two sets of accumulation mechanisms 2 have the same structure, both adopting the accumulation mechanism 2 given in Embodiment 1. That is, each set of accumulation mechanisms 2 includes two servo motors 211 and two transmission chains 2121. In this embodiment, the accumulation device includes a total of four transmission chains 2121, which are installed in parallel. Multiple sets of material grid groups 22 are installed on each chain 2121, thus doubling the number of material grid groups 22. The accumulation device has three mounting plates 7. One mounting plate 7 is installed on the outermost side of each of the four chains 2121, and one mounting plate 7 is installed in the middle of the four chains 2121. The height of the three mounting plates 7 is also equal to or slightly lower than the bottom plate 222 of the material grid group 22, ensuring that the material 6 can smoothly pass through the mounting plates 7 and enter the discharge mechanism 4 on one side.

[0067] In this embodiment, the two sets of dispensing mechanisms 3 have the same structure and are the same as those described in Embodiment 1. They also include a dispensing plate 31, a dispensing servo motor 32, and a dispensing transmission mechanism 33. The dispensing transmission mechanism 33 also includes a horizontal moving mechanism 331 and a lifting mechanism 332, which drive the dispensing plate 31 to perform reciprocating movements forward, upward, backward, downward, and then forward again to complete the action of dispensing material and returning to the initial dispensing position.

[0068] The horizontal moving mechanism 331 adopts a ball screw transmission mechanism. One end of the ball screw 3311 is connected to the output end of the push-out servo motor 32, and the other end of the ball screw 3311 is rotatably connected to the frame 5. The push plate 31 is fixed on the nut (not shown in the figure) on the ball screw 3311 through the lifting mechanism 332. When the push-out servo motor 32 rotates forward and backward, it drives the ball screw 3311 to rotate forward and backward, thereby driving the nut to make a linear reciprocating motion in the horizontal direction.

[0069] Furthermore, corresponding to each set of pull-out transmission mechanisms 33, two parallel guide rods 34 are also installed on the frame 5. The two guide rods 34 are installed on the upper and lower sides of the ball screw 3311. In this way, the space occupied in the horizontal direction can be reduced. The nut is slidably connected to the two guide rods 34 through the connecting plate (not shown in the figure) to ensure the straightness of the nut when it moves along the ball screw 3311.

[0070] In this embodiment, to ensure that the two sets of material-pushing plates 31 are pushed out to the same position, that is, the center lines of the two sets of material-pushing plates 31 are coaxial with the axial center line of the discharge mechanism 4, it is ensured that all materials 6 entering the discharge position can be pushed into the discharge mechanism 4 in a straight and accurate manner. Two sets of push-out servo motors 32 and push-out transmission mechanisms 33 are respectively installed on both sides of the discharge position. The two sets of lifting mechanisms 332 are then connected to the material-pushing plates 31 through a connecting rod 35 extending towards the center. The actions of the two material-pushing plates 31 are staggered, and they respectively push the materials 6 in the multiple sets of material grids 22 on the corresponding two chains 2121.

[0071] In this embodiment, two sets of feeding conveying mechanisms 1, two sets of accumulation mechanisms 2, and two sets of dispensing mechanisms 3 are used to push the material 6 into the dispensing mechanism 4 in an alternating manner. Based on the scheme described in Embodiment 1, the dispensing speed of one unit can be further improved, thereby significantly increasing the packaging speed of the dispensing mechanism 4, improving packaging efficiency, reducing manufacturing costs, and also reducing the footprint of the entire equipment.

[0072] Example 3:

[0073] In this embodiment, a packaging production line is provided. In Embodiment 1, the discharge end of a set of accumulation mechanisms 2 is connected to a set of discharge mechanisms 4. In Embodiment 2, the discharge ends of the two sets of accumulation mechanisms 2 are also connected to a set of discharge mechanisms 4.

[0074] The discharge mechanism 4 includes a discharge conveying mechanism 41 and a packaging machine (not shown in the figure) connected in sequence. The material 6 dispensed by the dispensing mechanism 3 enters the discharge conveying mechanism 41 and is then conveyed to the packaging machine for packaging. The packaging machine can be a bottom-feeding paper packaging machine or a top-feeding paper packaging machine.

[0075] Regarding the discharge mechanism 4, this embodiment also provides another implementation method. The discharge mechanism 4 only includes a packaging machine. The material dispensed by the dispensing mechanism 3 directly enters the packaging machine for packaging, without passing through the discharge conveying mechanism 41. This is beneficial to further improve packaging efficiency, reduce manufacturing costs, and reduce the space occupied by the equipment.

[0076] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. The implementation schemes in the above embodiments can be further combined or replaced. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. An intermittent material accumulation device, comprising a feeding and conveying mechanism, an accumulation mechanism, a dispensing mechanism, and a controller, characterized in that: The accumulation mechanism includes two or more sets of independently operating drive mechanisms. Each set of drive mechanisms drives multiple sets of material grids to move in a stepping manner along the circumference. The material grids on different sets of drive mechanisms are staggered in the running direction. The controller is configured to cause the material grids driven by different sets of drive mechanisms to enter the feeding accumulation position connected to the feeding conveying mechanism and the discharge position connected to the dispensing mechanism in a staggered manner. The material entering the discharge position is dispensed to the next station by the dispensing mechanism.

2. The intermittent material accumulation device according to claim 1, characterized in that: Each set of drive mechanisms includes a servo motor and a transmission component. The transmission components in multiple sets of drive mechanisms are arranged in parallel and run in the same direction. The servo motor drives the corresponding transmission component to perform circular motion. Multiple sets of material grids are intermittently installed on each set of transmission components. The transmission component is a transmission belt or a transmission chain.

3. The intermittent material accumulation device according to claim 2, characterized in that: Two parallel mounting plates are mounted on the frame, multiple sets of the transmission components are mounted in parallel between the two mounting plates, and multiple servo motors are mounted on the same mounting plate.

4. The intermittent material accumulation device according to claim 1, characterized in that: A material detection device is installed at the feed end of the material grid group. The controller is also configured to control the drive mechanism to step in response to the material detection device detecting that the material has entered the corresponding material grid, so that the next material grid is aligned with the injection port.

5. The intermittent material accumulation device according to claim 1, characterized in that: The material grid assembly consists of multiple material grids and a base plate. The material grids are installed on the base plate at equal intervals, and the base plate is fixedly connected to the corresponding drive mechanism.

6. The intermittent material accumulation device according to claim 1, characterized in that: The feeding mechanism includes a feeding plate, a feeding servo motor, and a feeding transmission mechanism. The feeding servo motor drives the feeding plate to reciprocate through the feeding transmission mechanism, pushing the material entering the discharge position to the next station in groups. The feeding plate adopts a forked claw structure, and the number of claws is equal to the number of material cells in the material cell group. The feeding plate extends into the corresponding material cell to feed the material.

7. The intermittent material accumulation device according to claim 6, characterized in that: The push-out transmission mechanism and push-out servo motor are mounted on the frame and positioned above the material discharge position. The push-out transmission mechanism includes a horizontal moving mechanism and a lifting mechanism. The lifting mechanism is mounted on the horizontal moving mechanism, and the push-out plate is mounted on the lifting mechanism. The push-out transmission mechanism drives the push-out plate to perform reciprocating motions back and forth and up and down.

8. The intermittent material accumulation device according to any one of claims 1-7, characterized in that: The feeding conveying mechanism, the accumulation mechanism, and the dispensing mechanism are all set in two sets. The two sets of accumulation mechanisms are respectively connected to one set of feeding conveying mechanism, and the two sets of dispensing mechanisms alternately dispensing the material conveyed to the discharge position in the corresponding accumulation mechanism.

9. The intermittent material accumulation device according to claim 8, characterized in that: The two sets of feeding and conveying mechanisms are respectively located on both sides of the frame, and the two sets of accumulation mechanisms are installed in parallel. The material in the two sets of accumulation mechanisms moves in opposite directions. A discharge mechanism is installed on one side of one of the accumulation mechanisms, and the material in both sets of accumulation mechanisms is pushed onto the discharge mechanism.

10. A packaging production line, characterized in that: The discharge end of the accumulation mechanism is connected to the discharge mechanism, which includes a discharge conveying mechanism and a packaging machine connected in sequence. The material dispensed by the dispensing mechanism enters the discharge conveying mechanism and is then conveyed to the packaging machine; or, the discharge mechanism is the packaging machine, and the material dispensed by the dispensing mechanism directly enters the packaging machine.

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