Sheet material centralising device

Abstract

Sheet centralized conveying device, including discharge conveying channel, incoming conveying channel, stacking mechanism, transfer conveying mechanism, movable partition and pushing unit; the stacking mechanism includes a material sorting bin, the incoming port of the material sorting bin corresponds to the connection of the discharge conveying channel, the discharge position height of the discharge conveying channel is higher than the bottom surface height of the material sorting bin; the transfer conveying mechanism includes a circulating movable transfer bin, the transfer bin in the receiving state is connected with the material sorting bin, and the transfer bin in the discharging state is connected with the incoming conveying channel; the movable partition is arranged between the material sorting bin and the transfer bin and can reciprocate between the working position and the avoiding position; when the movable partition is in the working position, the movable partition and the material sorting bin form a storage cavity for stacking sheets; when the movable partition is in the avoiding position, the material sorting bin is communicated with the transfer bin in the receiving state; the pushing unit is used for pushing the stacked sheets in the material sorting bin to the transfer bin in the receiving state.

Description

Technical Field

[0001] This utility model relates to the field of centralized sheet material conveying, and in particular to a centralized sheet material conveying device. Background Technology

[0002] The main function of a centralized sheet conveying device is to effectively connect the sheet production unit with the centralized sheet packaging unit. Currently, commonly used centralized sheet conveying devices typically employ a conveyor belt structure with hoppers. The hoppers sequentially receive sheets from the production unit, stacking them into piles within the hoppers. However, existing designs have a significant efficiency bottleneck: once the sheet pile in a hopper reaches a preset quantity, the hopper needs to be moved to a position to dock with the packaging unit before the sheet stack can be fed into the packaging process. Before the hopper containing the sheet stack is in place, the entire unit cannot proceed with the next round of feeding, which limits packaging production efficiency. Utility Model Content

[0003] This invention addresses the shortcomings of existing technologies by providing a centralized sheet conveying device that can simultaneously stack sheets and transport them to the inlet of the feeding conveying channel.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a sheet material centralized conveying device, comprising an outflow conveying channel, an inflow conveying channel, a stacking mechanism, a transfer conveying mechanism, a movable partition, and a pushing unit; the stacking mechanism includes a material handling hopper, the inlet of which is correspondingly connected to the outflow conveying channel, and the outflow position of the outflow conveying channel is higher than the bottom surface of the material handling hopper; the transfer conveying mechanism includes a recirculating transfer hopper, which has a receiving state and an outflow state, and the transfer hopper in the receiving state is connected to the material handling hopper. The material transfer hopper in the discharge state is connected to the material inlet conveying channel; a movable partition is set between the material handling hopper and the transfer hopper. The movable partition can move back and forth between the working position and the avoidance position. When the movable partition is in the working position, the movable partition and the material handling hopper cooperate to form a storage cavity for stacking sheets; when the movable partition is in the avoidance position, the material handling hopper is connected to the transfer hopper in the receiving state; the pushing unit is used to push the stacked sheets in the material handling hopper into the transfer hopper in the receiving state after the movable partition moves to the avoidance position.

[0005] The discharge position of the discharge conveyor channel in this invention is higher than the bottom of the sorting hopper. The inlet of the sorting hopper connects to the outlet of the discharge conveyor channel to receive the discharged sheets and facilitate natural stacking of the sheets within the sorting hopper. The transfer conveyor mechanism uses a recirculating transfer hopper. After receiving the stacked sheets in the sorting hopper, the transfer hopper switches to discharge mode and connects to the inlet of the inlet conveyor channel. Through the cooperation of the sorting hopper and the transfer hopper, the sheet stacking process in the sorting hopper and the feeding process from the transfer hopper to the inlet conveyor channel are synchronized, effectively improving packaging production efficiency. Movable partitions are used to assist the sorting hopper in stacking and storing the sheets. When the sheet material in the sorting bin is stacked to the preset quantity, the movable partition moves to the clearance position, connecting the sorting bin with the transfer bin. The pushing unit then moves to push the stack of sheet material in the sorting bin into the transfer bin, thus completing the automatic connection between the stacking and packaging processes.

[0006] Preferably, the conveying path of the discharge conveying channel is parallel to the conveying path of the infeed conveying channel.

[0007] Preferably, a variable-pitch conveying unit is provided upstream of the discharge conveying channel. This variable-pitch conveying unit includes multiple guide conveying channels, with the lateral spacing between adjacent guide conveying channels gradually increasing along the conveying direction. The number of guide conveying channels is appropriate to the number of discharge conveying channels, and the discharge port of each guide conveying channel is connected to its inlet. To ensure the stable entry of closely packed sheets into the sorting hopper, the sheets first pass through the guide conveying channels, thereby widening the spacing between sheets in the same row and ensuring that subsequent sheets are stably delivered to the sorting hopper via the discharge conveying channel.

[0008] Preferably, the material handling hopper includes a left side plate, a right side plate, a front side plate, and a base. The movable partition is located on the opposite side of the front side plate. The base includes a pushing gap for the pushing unit to push the material, and the base is provided with a plurality of idler rollers at intervals along the conveying direction. The idler rollers can reduce the friction between the sheet and the base, allowing the sheet to enter the transfer hopper intact and stably.

[0009] Preferably, the avoidance position is located above the working position, and the movable partition is connected to the avoidance drive unit, which drives the movable partition to move up and down.

[0010] Preferably, the pushing unit includes a first pushing plate and a material transfer drive structure that drives the first pushing plate to move horizontally. The material transfer drive structure drives the first pushing plate to push the sheet material from the material handling hopper to the transfer hopper. The movable partition has an avoidance notch for the first pushing plate to pass through during its return process. The avoidance notch on the movable partition allows the first pushing plate to pass through during its return process, enabling pushing and returning to its original position without additional action from the movable partition or the first pushing plate, resulting in a simple structure.

[0011] Preferably, the pushing unit includes a second pushing plate and a circulating drive structure. The circulating drive structure drives the second pushing plate to move vertically and horizontally, pushing the sheet material from the sorting bin to the transfer bin. Upon returning to its original position, the second pushing plate moves from below the sorting bin and the transfer bin. The pushing plate of the pushing unit moves along a circular trajectory. In standby mode, the second pushing plate waits below the base. When the sheet material in the sorting bin is stacked to a preset quantity, the second pushing plate moves up into the sorting bin and pushes the sheet material. The circular movement trajectory of the second pushing plate can adapt to working conditions with long pushing strokes.

[0012] Preferably, the transfer conveyor mechanism is connected to the feeding conveyor channel via a transfer robot, which transfers the sheet material from the transfer conveyor mechanism to the feeding mechanism.

[0013] Preferably, the transfer conveying mechanism further includes a circulating conveyor belt, with transfer hoppers spaced along the belt. The circulating conveyor belt allows the transfer hoppers at the feeding station to receive sheet material, while the transfer hoppers at the discharging station connect to the packaging unit, enabling parallel feeding and discharging operations, further improving transfer conveying efficiency and shortening the production cycle. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the material handling hopper and the movable partition in the avoidance position of this utility model.

[0016] Figure 3 This is a schematic diagram of the structure of the material handling silo and the transfer silo connected in this utility model.

[0017] Figure 4 This is a schematic diagram of the connection between the transfer hopper and the feeding conveyor channel of this utility model.

[0018] The names of the body parts referred to by the numbers in the above attached diagrams are as follows:

[0019] The components include: 1. Discharge conveying channel; 2. Feed conveying channel; 31. Stacking mechanism; 311. Material handling bin; 3111. Left side plate; 3112. Right side plate; 3113. Front side plate; 3114. Base; 3115. Insulator roller; 32. Transfer conveying mechanism; 321. Transfer bin; 322. Circulating conveyor belt; 4. Movable partition; 5. Pushing unit; 51. Second push plate; 52. Circulating drive structure; 6. Variable pitch conveying unit; 61. Guide conveying channel; 7. Transfer robot. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0021] like Figure 1 As shown, a sheet material centralized conveying device includes an outgoing conveying channel 1, an incoming conveying channel 2, a stacking mechanism 31, a transfer conveying mechanism 32, a movable partition 4, and a pushing unit 5. In this embodiment, the conveying path of the outgoing conveying channel 1 is parallel to the conveying path of the incoming conveying channel 2; however, the conveying paths of the outgoing conveying channel 1 and the incoming conveying channel 2 can also be perpendicular. The stacking mechanism 31 includes a material handling bin 311, the inlet of which is connected to the outgoing conveying channel 1. The number of outgoing conveying channels 1 is the same as the number of material handling bins 311, with a one-to-one correspondence. The outgoing position of the outgoing conveying channel 1 is higher than the bottom surface of the material handling bin 311, and the height difference between the two facilitates the stacking of sheets inside the material handling bin 311. In this embodiment, the conveying path of the discharge conveying channel 1 is parallel to the conveying path of the infeed conveying channel, and the conveying path of the transfer conveying mechanism 32 is perpendicular to the discharge conveying channel 1 (and the infeed conveying channel 2). The transfer conveying mechanism 32 includes a transfer hopper 321 that can be moved in a cycle. That is, the transfer hopper 321 moves in a cycle between the material handling hopper 311 and the infeed conveying channel 2. The transfer hopper 321 has a receiving state and a discharging state. The transfer hopper 321 in the receiving state is connected to the material handling hopper 311, and the transfer hopper 321 in the discharging state is connected to the infeed conveying channel 2. The bottom height of the transfer hopper 321 is no higher than the bottom height of the sorting hopper 311 to ensure that the sheets stably enter the transfer hopper 321 from the sorting hopper 311 and achieve natural stacking of the sheets. The feeding conveyor channel 2 connects the sheet centralized conveying device with the existing packaging device (for packaging the stacked sheets). Multiple circulating transfer hoppers 321 can achieve simultaneous operation of the transfer hoppers 321 at the feeding and discharging stations, improving production efficiency. In this embodiment, the transfer conveying mechanism 32 also includes a circulating conveyor belt 322. The transfer hoppers 321 are spaced apart on the circulating conveyor belt 322, and there are several transfer hoppers 321, which are fixedly installed on the circulating conveyor belt 322.

[0022] like Figure 3As shown, a movable partition 4 is positioned between the material handling hopper 311 and the transfer hopper 321 at the feeding station. The movable partition 4 can reciprocate between a working position and a clearance position. When the movable partition 4 is in the working position, it cooperates with the material handling hopper 311 to form a storage cavity for stacking sheets. The storage cavity has an upper opening (i.e., a feed inlet). When the movable partition 4 is in the clearance position, the material handling hopper 311 is connected to the transfer hopper 321 at the feeding station. The movable partition 4 can have various movement trajectories. For example, the clearance position is located above the working position, and the movable partition 4 is connected to a clearance drive unit, which drives the movable partition 4 to move up and down. Alternatively, the clearance position is offset left and right from the working position, and a cylinder or other linear drive unit drives the movable partition 4 to move laterally. Preferably, the movable partition 4 moves vertically to avoid excessive floor space on the production line.

[0023] like Figure 4 As shown, the pushing unit 5 is used to push the stacked sheet material in the material handling bin 311 to the transfer bin 321 in the feeding station after the movable partition 4 moves to the clearance position. Figure 2As shown, in this embodiment, the material handling hopper 311 includes a left side plate 3111, a right side plate 3112, a front side plate 3113, and a base 3114. The left side plate 3111, right side plate 3112, front side plate 3113, and base 3114 enclose the material handling hopper 311, that is, the rear and upper sides of the material handling hopper 311 are open. The movable partition 4 is located on the opposite side of the front side plate 3113 and on the rear side of the material handling hopper 311. The front side plate 3113 has a gap for the pushing unit 5 to avoid. The base 3114 includes a pushing gap for the pushing unit 5 to push the material. The base 3114 is provided with a plurality of idler rollers 3115 at intervals along the conveying direction. The idler rollers 3115 can reduce the friction between the sheet and the base 3114, so that the sheet enters the transfer hopper 321 intact and stably. The pushing trajectory of the pushing unit 5 can be varied. For example, the pushing unit 5 includes a first pushing plate and a material transfer drive structure that drives the first pushing plate to move horizontally. The material transfer drive structure drives the first pushing plate to push the sheet material from the material handling bin 311 to the transfer bin 321. The movable partition 4 has an avoidance notch for the first pushing plate to pass through during its return process. The material transfer drive structure can be a screw drive structure or other existing linear drive structures. The material transfer drive structure drives the first pushing plate to move linearly back and forth between the material handling bin 311 and the transfer bin 321. The avoidance notch of the movable partition 4 allows it to be in the working position while the first pushing plate returns to its original position, avoiding interference between the two, and the structure is simple. Alternatively, the pushing unit 5 includes a second pushing plate 51 and a circulating drive structure 52. The circulating drive structure 52 drives the second pushing plate 51 to move vertically and horizontally, pushing the sheet material from the material handling hopper 311 to the transfer hopper 321. Upon returning to its original position, it drives the second pushing plate 51 to move below the material handling hopper 311 and the transfer hopper 321. In this embodiment, the circulating drive structure 52 includes a first horizontal drive component and a first vertical drive component. The first horizontal drive component is mounted at the output end of the first vertical drive component via a lifting plate. The second pushing plate 51 is connected to the first horizontal drive component via a translation seat. The first vertical drive component drives the second pushing plate 51 into the material handling hopper 311. The first horizontal drive component drives the second pushing plate 51 to push the stack of sheet material in the material handling hopper 311 to the transfer hopper 321 at the feeding station. Subsequently, the first vertical drive component drives the second pushing plate 51 to descend and retract, waiting for the next pushing cycle. Since the second pusher plate retracts from below, it does not affect the feeding of the material hopper, further improving production efficiency.

[0024] Working Principle: The discharge conveyor 1 conveys sheet material to the corresponding sorting hopper 311. Since the discharge position is higher than the bottom surface of the sorting hopper 311, the sheet material naturally stacks within the sorting hopper 311. When the sheet material stack in the sorting hopper 311 reaches a preset quantity, the movable partition 4 moves from the working position to the clearance position, connecting the sorting hopper 311 with the transfer hopper 321 at the feeding station. The pushing unit 5 then moves, pushing the stacked sheet material into the transfer hopper 321. Subsequently, the transfer hopper 321, carrying a preset quantity of sheet material, moves to the discharge station. The transfer hopper 321 at the discharge station connects with the feeding conveyor 2, which then transports the sheet material stack received from the discharge station to the next process. Empty transfer hoppers 321 receive sheet material stacks at the feeding station. Multiple transfer hoppers 321 circulate between the feeding and discharge stations, achieving continuous operation. This invention, by setting up a material handling hopper 311, a movable partition 4, and a pushing unit 5332, enables the simultaneous stacking of sheet materials and the feeding of the material in the feeding conveyor channel 2, thereby improving production efficiency. This sheet material centralized conveying device is applicable to the connection between existing heat pack forming and centralized heat pack packaging processes, and can also be applied to other sheet material production lines.

[0025] Based on the above embodiments, the following optimizations or further explanations can be made.

[0026] To ensure the stable entry of the sheet material into the feeding conveyor channel, the transfer conveyor mechanism 32 is connected to the feeding conveyor channel 2 via a transfer robot 7. The transfer robot 7 transfers the sheet material from the transfer conveyor mechanism 32 into the feeding mechanism. The transfer robot 7 can carry the sheet material stack and move it vertically and horizontally, stably feeding the stacked material into the feeding conveyor channel 2.

[0027] To improve production efficiency, sheets are typically produced in multiple batches at once, resulting in tightly packed sheets (in the same row). This leads to insufficient spacing between subsequent material hoppers, making assembly difficult. An upstream variable-pitch conveying unit 6 is provided in the discharge conveying channel. This unit includes multiple guide conveying channels 61, with the lateral spacing between adjacent guide conveying channels 61 gradually increasing along the conveying direction (i.e., the lateral spacing between adjacent guide conveying channels 61 gradually increases from front to back). The number of guide conveying channels 61 is appropriate to the number of discharge conveying channels 1. The discharge port of each guide conveying channel 61 connects to the inlet of the discharge conveying channel 1. The guide conveying channels 61 allow for lateral spacing between sheets, facilitating assembly while ensuring stable entry of the sheets into the material handling hopper 311.

[0028] In the description of this utility model, it should be understood that the terms "center," "length," "width," "thickness," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. 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, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] In summary, the above description is only a preferred embodiment of the present utility model. All equivalent changes and modifications made within the scope of the patent application of the present utility model shall fall within the scope of the patent of the present utility model.

Claims

1. A sheet material centralized conveying device, characterized in that: It includes a discharge conveying channel (1), a feed conveying channel (2), a stacking mechanism (31), a transfer conveying mechanism (32), a movable partition (4), and a pushing unit (5); The stacking mechanism (31) includes a material handling bin (311), the inlet of which is connected to the outlet conveying channel (1), and the outlet position of the outlet conveying channel (1) is higher than the bottom surface of the material handling bin (311). The ferry conveying mechanism (32) includes a recyclable ferry hopper (321), which has a receiving state and a discharging state. The ferry hopper (321) in the receiving state is connected to the material handling hopper (311), and the ferry hopper (321) in the discharging state is connected to the infeed conveying channel (2). A movable partition (4) is provided between the material handling hopper (311) and the transfer hopper (321). The movable partition (4) can move back and forth between the working position and the avoidance position. When the movable partition (4) is in the working position, the movable partition (4) and the material handling hopper (311) cooperate to form a storage cavity for stacking sheets. When the movable partition (4) is in the avoidance position, the material handling hopper (311) is connected to the transfer hopper (321) which is in the receiving state. The pushing unit (5) is used to push the stacked sheet material in the material handling bin (311) into the transfer bin (321) in the receiving state after the movable partition (4) moves to the avoidance position.

2. The sheet material centralized conveying device according to claim 1, characterized in that: The conveying path of the discharge conveying channel (1) is parallel to the conveying path of the infeed conveying channel (2).

3. The sheet material centralized conveying device according to claim 1, characterized in that: A variable-pitch conveying unit (6) is provided upstream of the discharge conveying channel. The variable-pitch conveying unit (6) includes multiple guide conveying channels (61). The lateral spacing between adjacent guide conveying channels (61) gradually increases along the conveying direction. The number of guide conveying channels (61) is appropriate to the number of discharge conveying channels (1). The discharge port of the guide conveying channel (61) is connected to the inlet of the discharge conveying channel (1).

4. The sheet material centralized conveying device according to claim 1, characterized in that: The material handling hopper (311) includes a left side plate (3111), a right side plate (3112), a front side plate (3113), and a base (3114). The movable partition (4) is located on the opposite side of the front side plate (3113). The base (3114) includes a pushing gap for the pushing unit (5) to push the material. The base (3114) is provided with a number of idler rollers (3115) at intervals along the conveying direction.

5. The sheet material centralized conveying device according to claim 1, characterized in that: The avoidance position is located above the working position, and the movable partition (4) is connected to the avoidance drive unit. The avoidance drive unit drives the movable partition (4) to move up and down.

6. The sheet material centralized conveying device according to claim 1, characterized in that: The pushing unit (5) includes a first pushing plate and a material transfer driving structure that drives the first pushing plate to move horizontally. The material transfer driving structure drives the first pushing plate to push the sheet material from the material handling bin (311) to the transfer bin (321). The movable partition (4) has an avoidance gap for the first pushing plate to pass through during its return process.

7. The sheet material centralized conveying device according to claim 1, characterized in that: The pushing unit (5) includes a second pushing plate (51) and a circulating drive structure (52). The circulating drive structure (52) drives the second pushing plate (51) to move in the vertical and horizontal directions. The circulating drive structure (52) drives the second pushing plate (51) to push the sheet material from the material handling bin (311) to the transfer bin (321). When returning to its original position, it drives the second pushing plate (51) to move from below the material handling bin (311) and the transfer bin (321).

8. The sheet material centralized conveying device according to claim 1, characterized in that: The ferry conveyor (32) is connected to the feed conveyor channel (2) by a transfer robot (7), which transfers the sheet material from the ferry conveyor (32) to the feed mechanism.

9. The sheet material centralized conveying device according to claim 1, characterized in that: The ferry conveyor mechanism (32) also includes a circulating conveyor belt (322), and the ferry bins (321) are spaced apart on the circulating conveyor belt (322).

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