Origami tray stacker food product packaging line

Abstract

The application belongs to the technical field of packaging equipment, and discloses a paper folding tray stacking material packaging line, which comprises a first feeding mechanism for driving material movement, a stacking mechanism downstream of the first feeding mechanism for separating the material into multiple layers of material arranged in an up-down manner, a stacking area downstream of the stacking mechanism, a second feeding mechanism for driving the multiple layers of material movement, a material arranging area for obtaining a stacking material queue after the stacking material is arranged in the material arranging area, a third feeding mechanism for driving the stacking material queue movement, a paper feeding mechanism provided with a first paper feeding section and a second paper feeding section, the first paper feeding section feeds out paper sheets, and the second paper feeding section drives the paper sheets to be synchronously conveyed with the stacking material queue, and a paper folding mechanism downstream of the paper feeding mechanism for processing the paper sheets into paper trays. The application can realize a continuous production process of material automatic stacking, stacking material automatic arrangement, stacking material automatic tray loading and paper tray automatic folding, so as to improve the packaging efficiency.

Description

Technical Field

[0001] This invention relates to the field of packaging equipment technology, and in particular to a folding tray stacked material packaging line. Background Technology

[0002] For the packaging of materials such as food, medicine, and daily necessities, it is often necessary to stack the materials and use paper trays to fix and protect them.

[0003] Traditional packaging lines typically use manual labor or simple machinery to stack materials, which results in low stacking efficiency and the stacked materials are prone to scattering.

[0004] Furthermore, the production of paper trays requires equipment other than packaging equipment. After the paper trays are folded, they are sent to the packaging line manually or by conveyor line, and then the packaging line loads the materials onto the trays.

[0005] Existing equipment is unable to achieve a continuous, efficient, and automated stacked material packaging process, resulting in low factory efficiency and hindering rapid production. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide a packaging line for origami tray stacked materials, so as to solve one or more technical problems existing in the prior art, and at least provide a beneficial option or create conditions.

[0007] The solution to the technical problem of this invention is:

[0008] A paper tray stacked material packaging line has a material conveying channel extending along the material conveying direction, the paper tray stacked material packaging line comprising:

[0009] A first feeding mechanism is used to move the material along the material conveying channel;

[0010] A stacking mechanism is located downstream of the first feeding mechanism; the stacking mechanism is used to divide the material into multiple layers according to the number of layers, and the multiple layers of material are arranged in the vertical direction.

[0011] A stacking area is provided downstream of the stacking mechanism, and materials are stacked in the stacking area according to the number of stacks to obtain stacked materials;

[0012] The second feeding mechanism is connected at its beginning to the first feeding mechanism. The second feeding mechanism is used to move the multi-layer material along the material conveying channel.

[0013] The discharge area is located at the end of the second feeding mechanism. The stacked materials are discharged in the discharge area according to the discharge quantity, so that multiple stacked materials are closely arranged to obtain a stacked material queue.

[0014] The third feeding mechanism has its beginning end connected to the end end of the second feeding mechanism. The third feeding mechanism is used to drive the stacked material queue to move along the material conveying channel.

[0015] The paper feeding mechanism is provided with a first paper feeding section and a second paper feeding section. The first paper feeding section is used to feed out paper sheets, and the second paper feeding section is used to synchronously transport the paper sheets with the stacked material queue.

[0016] A folding mechanism is located downstream of the paper feeding mechanism. The folding mechanism is used to fold up both sides of the paper sheet to form a paper tray.

[0017] As a further improvement to the above technical solution, the stacking mechanism includes:

[0018] A stacked oscillating structure that can oscillate up and down relative to the material conveying channel;

[0019] A stacked oscillation drive, the output end of which is fixed to the stacked oscillation structure;

[0020] A stacked temporary storage structure is located downstream of the stacked swing structure and has multiple layered conveying channels arranged in the vertical direction.

[0021] The stacked swing drive drives the stacked swing structure to swing up and down, so that the end of the stacked swing structure can be switched to dock with multiple of the layered conveying channels.

[0022] As a further improvement to the above technical solution, the end of the second paper feeding segment is located downstream of the end of the third feeding mechanism, so that after the stacked material queue is separated from the third feeding mechanism, the second paper feeding segment continues to transport the stacked material queue.

[0023] As a further improvement to the above technical solution, the first paper feeding section is located on the side of the material conveying channel, and the conveying direction of the first paper feeding section is inclined relative to the second paper feeding section.

[0024] As a further improvement to the above technical solution, the first feeding mechanism, the second feeding mechanism, and the third feeding mechanism all include:

[0025] Feeding cycle drive component;

[0026] The feeding levers are provided in multiple manner, and the multiple feeding levers are evenly distributed on the feeding cycle drive assembly. The feeding cycle drive assembly drives the multiple feeding levers to move in a cycle.

[0027] As a further improvement to the above technical solution, it also includes:

[0028] A maintenance tilting frame is disposed above the material conveying channel; the third feeding mechanism is installed on the maintenance tilting frame; the maintenance tilting frame can be tilted relative to the material conveying channel about an axis parallel to the horizontal direction, so that the maintenance tilting frame is away from the material conveying channel.

[0029] As a further improvement to the above technical solution,

[0030] The origami mechanism includes:

[0031] The folding wheel assembly has two components, which are arranged along the material conveying channel. Each folding wheel assembly includes two folding wheel bodies and a folding connecting shaft. The two folding wheel bodies are respectively disposed on both sides of the material conveying channel, and the folding wheel bodies are fixed to the folding connecting shaft.

[0032] Origami guide, which is used to fold the two sides of the paper upwards;

[0033] An origami drive assembly is connected to the origami wheel assembly to enable the two origami wheel assemblies to work synchronously.

[0034] As a further improvement to the above technical solution, the two origami wheel groups are respectively designated as a first origami wheel group and a second origami wheel group. The second origami wheel group is located downstream of the first origami wheel group. The linear velocity of the edge of the origami wheel body of the second origami wheel group is designated as a second linear velocity, and the linear velocity of the edge of the origami wheel body of the first origami wheel group is designated as a first linear velocity. The second linear velocity is greater than the first linear velocity.

[0035] As a further improvement to the above technical solution, the origami guide plate is provided with a guide part and a shaping part; along the extension direction of the material conveying channel, the guide part gradually approaches the material conveying direction and is inclined from bottom to top.

[0036] As a further improvement to the above technical solution, the origami wheel assembly also includes an origami support wheel, which is disposed below the origami wheel body. The origami support wheel corresponds one-to-one with the origami wheel body. The origami support wheel is a rotatable component, and the rotation axis of the origami support wheel is parallel to the rotation axis of the origami wheel body. The origami support wheel is used to support the paper.

[0037] The beneficial effects of this invention are: this solution can realize a continuous production process of automatic material stacking, automatic arrangement of stacked materials, automatic loading of stacked materials into trays, and automatic folding of paper trays, which can greatly improve packaging efficiency and quality. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly explained below. Obviously, the described drawings are only a part of the embodiments of the present invention, and not all of them. Those skilled in the art can obtain other design schemes and drawings based on these drawings without creative effort.

[0039] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention;

[0040] Figure 2 This is a schematic diagram of the structure of the first feeding mechanism, the stacking mechanism, and the second feeding mechanism in an embodiment of the present invention;

[0041] Figure 3 This is a schematic diagram of the structure of the third feeding mechanism, folding mechanism, and paper feeding mechanism in an embodiment of the present invention;

[0042] Figure 4 This is a schematic diagram of the third feeding mechanism and the maintenance tilting frame in an embodiment of the present invention;

[0043] Figure 5 This is a schematic diagram of the folding mechanism in an embodiment of the present invention.

[0044] In the diagram, 100 is the frame; 101 is the stacking area; 102 is the discharge area; 200 is the first feeding mechanism; 300 is the stacking mechanism; 310 is the stacking swing structure; 320 is the stacking swing drive; 330 is the stacking temporary storage structure; 400 is the second feeding mechanism; 500 is the third feeding mechanism; 600 is the folding mechanism; 611 is the first folding wheel group; 612 is the second folding wheel group; 621 is the folding wheel body; 622 is the folding connecting shaft; 630 is the folding guide plate; 631 is the guide part; 632 is the shaping part; 640 is the folding drive assembly; 650 is the folding support wheel; 700 is the paper feeding mechanism; 710 is the paper dispensing device; 720 is the paper sheet conveying device; 721 is the first paper feeding section; 722 is the arc connecting section; 723 is the second paper feeding section; and 800 is the maintenance flipping frame. Detailed Implementation

[0045] The following will clearly and completely describe the concept, specific structure, and technical effects of the present invention in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are all within the scope of protection of the present invention. Furthermore, all connections / linkages mentioned herein do not simply refer to direct connection of components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this invention can be combined interactively without contradicting each other.

[0046] Reference Figure 1 and Figure 2 The origami tray stacking material packaging line of this invention includes: a frame 100, a first feeding mechanism 200, a stacking mechanism 300, a second feeding mechanism 400, a third feeding mechanism 500, a paper feeding mechanism 700, and an origami mechanism 600.

[0047] The origami tray stacked material packaging line is equipped with a material conveying channel, a stacking area 101, and a discharge area 102. The material conveying channel extends in a direction parallel to the X-axis and passes through the stacking area 101 and the discharge area 102. The discharge area 102 is located downstream of the stacking area 101.

[0048] The frame 100 is provided with a first frame support plate and a second frame support plate, with the second frame support plate located downstream of the first frame support plate. Both the first and second frame support plates have lever slots that connect to the material conveying channel, and the path of the lever through the slot is the same as the extension path of the material conveying channel.

[0049] The first feeding mechanism 200 is fixedly installed on the frame 100. The first feeding mechanism 200 is used to move the material on the support plate of the first frame along the material conveying channel. Specifically, the first feeding mechanism 200 includes a feeding cycle drive assembly and feeding levers. The feeding cycle drive assembly is configured as a chain and sprocket conveying structure. The chain and sprocket conveying structure is a conventional structure used in the art, and its specific construction will not be described in detail here. In other embodiments, the feeding cycle drive assembly can also be configured as a belt conveying structure. Those skilled in the art can select the specific construction of the feeding cycle drive assembly according to actual needs. Multiple feeding levers are provided. The feeding levers pass through lever slots so that they can contact the material located in the material conveying channel. The multiple feeding levers are evenly distributed on the feeding cycle drive assembly. The feeding levers are used to push the material, causing it to move along the material conveying channel.

[0050] The second feeding mechanism 400 is connected to the first feeding mechanism 200 at its beginning. The structure of the second feeding mechanism 400 is the same as that of the first feeding mechanism 200, both including a feeding cycle drive assembly and a feeding lever. To ensure that the first feeding mechanism 200 and the second feeding mechanism 400 can smoothly and continuously convey materials, the first feeding mechanism 200 and the second feeding mechanism 400 are staggered to avoid interference between them.

[0051] The feeding cycle drive components of the first feeding mechanism 200 and the second feeding mechanism 400 are both located below the material conveying channel. The feeding levers of the first feeding mechanism 200 and the second feeding mechanism 400 are inserted into the material conveying channel and move within the material conveying channel to push the material forward within the material conveying channel.

[0052] The spacing between the multiple feeding levers of the first feeding mechanism 200 is set as the first spacing, and the spacing between the multiple feeding levers of the second feeding mechanism 400 is set as the second spacing.

[0053] The stacking mechanism 300 is located downstream of the first feeding mechanism 200. The stacking mechanism 300 includes: a stacking swing structure 310, a stacking swing drive 320, and a stacking temporary storage structure 330.

[0054] The stacked oscillating structure 310 is hinged to the frame 100, and the stacked oscillating structure 310 can oscillate up and down relative to the frame 100 about an axis perpendicular to the material conveying channel. The material is supported by the upper end surface of the stacked oscillating structure 310 to adjust the final height of the material output from the stacked oscillating structure 310.

[0055] The stacked swing drive 320 is configured as a servo motor. In other embodiments, the stacked swing drive 320 may also be configured as a rotary cylinder or other conventional rotary drive device. Those skilled in the art can select the specific structure of the stacked swing drive 320 according to actual needs.

[0056] The stacked temporary storage structure 330 is provided with multiple layered conveying channels. In this embodiment, the number of layered conveying channels is equal to the number of layers, that is, the number of layered conveying channels is set to two. The two layered conveying channels are arranged in the vertical direction. The bottom of each layered conveying channel is provided with a support base plate for supporting the material. The support base plate is fixed to the frame 100. The support base plate is also provided with a lever through slot for the feeding lever of the second feeding mechanism 400 to pass through. The lever through slot of the support base plate at the bottom end is connected to the lever through slot of the frame 100. The lever through slots of the multiple support base plates are arranged at intervals in the vertical direction. The feeding lever of the second feeding mechanism 400 passes through the lever through slots of the support base plates of the multiple layered conveying channels. Under the drive of the feeding cycle drive component of the second feeding mechanism 400, the feeding lever of the second feeding mechanism 400 pushes the material in the multiple layered conveying channels to continue to move forward.

[0057] The first feeding mechanism 200 conveys the material into the stacked temporary storage structure 330, and then the second feeding mechanism 400 takes over the material in the stacked temporary storage structure 330.

[0058] The stacked swing drive 320 drives the stacked swing structure 310 to swing up and down, so that the end of the stacked swing structure 310 can be switched to connect with multiple layered conveying channels. The material enters the layered conveying channel through the stacked swing structure 310, thereby realizing the material being divided into multiple layers according to the number of layers.

[0059] The stacking area 101 (shown by the dashed box in the figure) is located downstream of the stacking mechanism 300. The supporting base plate of the layered conveying channel extends to the upstream edge of the stacking area 101 and ends there. The end of the supporting base plate of the bottommost layered conveying channel is connected to the second frame support plate, meaning that no supporting base plate is set at the stacking area 101. When the feeding lever of the second feeding mechanism 400 pushes the layered material out of the layered conveying channel and moves it into the stacking area 101, the bottommost material is supported by the second frame support plate of the frame 100. The material above loses the support of the supporting base plate and falls due to its own gravity, accurately landing on the surface of the bottommost material. This allows the material to be stacked in the stacking area 101 according to the number of layers, forming a stable stacked material.

[0060] The second feeding mechanism 400 is used to move multi-layer materials along the material conveying channel. The second feeding mechanism 400 needs to wait for the materials to be layered before conveying the multiple layers of materials, so that the multi-layer materials move to the stacking area 101. In the stacking area 101, the material on the upper layer falls due to gravity, causing the multi-layer materials to stack and form stacked materials. Then the second feeding mechanism 400 continues to transport the stacked materials.

[0061] Reference Figure 1 , Figure 3 ,Figure 4 The maintenance tilting frame 800 is positioned above the material conveying channel and downstream of the second feeding mechanism 400. The maintenance tilting frame 800 is hinged to the frame 100 and can rotate relative to the frame 100 about an axis parallel to the X-axis. The third feeding mechanism 500 is mounted on the maintenance tilting frame 800.

[0062] The third feeding mechanism 500 is connected at its beginning to the end of the second feeding mechanism 400, and is used to drive the arranged stacked material queue to move along the material conveying channel. The structure of the third feeding mechanism 500 is the same as that of the first feeding mechanism 200 and the second feeding mechanism 400, except that the spacing of the feeding levers is different, so that the stacked material queue can be accommodated between two adjacent feeding levers. The spacing of the feeding levers of the third feeding mechanism 500 is set to the third spacing.

[0063] The third feeding mechanism 500 is located above the second frame support plate, and the end of the third feeding mechanism 500 is located upstream of the end of the second frame support plate.

[0064] The discharge area 102 (shown by the dashed box in the figure) is located at the end of the second feeding mechanism 400. The stacked material leaves the second feeding mechanism 400 in the discharge area 102. The discharge area 102 can be set as a smooth buffer platform or a slow conveyor belt. The stacked material that is subsequently fed will push the previous stacked material forward under the push of the second feeding mechanism 400, or the speed difference will cause multiple stacked materials to connect end to end and approach each other in the discharge area 102, so that multiple stacked materials are closely arranged according to the preset discharge quantity to form a stacked material queue.

[0065] When the operating linear speed of the second feeding mechanism 400 is the same as that of the third feeding mechanism 500, by setting the third spacing to a multiple of the second spacing (the multiple here is equal to the discharge quantity), the feeding lever of the third feeding mechanism 500 can convey the stacked material queue after the stacked material in the discharge area 102 reaches the discharge quantity.

[0066] In other embodiments, the operator can adjust the speed difference between the third feeding structure and the second feeding mechanism 400 so that the third feeding mechanism 500 only transports the stacked material queue after a specified quantity of multiple stacked materials have been discharged in the discharge area 102.

[0067] The tilting drive frame is configured to be tiltable relative to the frame 100 so that the maintenance tilting frame 800 can be moved away from the material conveying channel, making it easier for maintenance personnel to observe and maintain other components, thus facilitating equipment maintenance.

[0068] likeFigure 1 , Figure 3 As shown, the paper feeding mechanism 700 includes: a paper dispensing device 710 and a paper conveying device 720.

[0069] The paper dispensing device 710 is a conventional device in the art, and the paper dispensing device 710 is used to output paper sheets one by one.

[0070] The paper sheets output by the paper dispensing device 710 are conveyed by the paper sheet conveying device 720.

[0071] The paper conveying device 720 includes: a chain and sprocket conveying structure and paper feeding levers (the chain and sprocket conveying structure and paper feeding levers are not shown in the figure). Multiple paper feeding levers are provided, and these levers are evenly distributed within the chain and sprocket conveying structure. The chain and sprocket conveying structure drives the paper feeding levers to move, thereby propelling the paper sheet.

[0072] Specifically, the paper feeding device 720 is provided with a first paper feeding section 721, an arc connection section 722, and a second paper feeding section 723 in sequence.

[0073] The chain and sprocket conveying structure of the second paper feeding section 723 is located below the second frame support plate.

[0074] The second frame support plate also has a paper feeding slot through which the paper feeding lever of the paper feeding device 720 passes. The paper feeding slot is connected to the lever slot. The paper feeding lever, which moves along the arc path of the arc connecting segment 722, passes through the paper feeding slot and merges into the lever slot of the second frame support plate.

[0075] The second paper feeding section 723 is located below the second frame support plate. The second paper feeding section 723 is used to convey paper sheets along a straight path, and its conveying direction is the same as the extension direction of the material conveying channel. The beginning of the second paper feeding section 723 is located below the end of the third feeding mechanism 500, and the end of the second paper feeding section 723 is located downstream of the end of the second frame support plate. After the stacked material queue detaches from the second frame support plate, the stacked material queue falls onto the paper sheets due to its own gravity, and the second paper feeding section 723 continues to convey the paper sheets containing the stacked material queue.

[0076] The first paper feeding section 721 is located on the side of the material conveying channel. The first paper feeding section 721 is used to convey paper sheets along a straight path. The conveying direction of the first paper feeding section 721 is at an angle to the conveying direction of the second paper feeding section 723.

[0077] The first paper feeding section 721 is connected to the second paper feeding section 723 via an arc connecting section 722. The beginning of the arc connecting section 722 is connected to the first paper feeding section 721, and the end is connected to the second paper feeding section 723. The arc connecting section 722 is used to convey paper along an arc path. By setting the arc connecting section 722, the paper is guided to move smoothly from the side of the material conveying channel along the arc path to directly below the material conveying channel.

[0078] To meet the requirements of changing path direction, in this embodiment, the chain in the chain and sprocket conveying structure of the paper sheet conveying device 720 is set as a side-bent chain, so that the paper sheet conveying device 720 can convey the paper sheet along a conveying path including an arc path (the conveying path of the paper sheet conveying device 720 is the path formed by the combination of the conveying paths of the first paper feeding segment 721, the arc connecting segment 722, and the second paper feeding segment 723).

[0079] The linear speed of the chain and sprocket conveyor structure is the same as the linear speed of the third feeding mechanism 500. The speed at which the third feeding mechanism 500 conveys the stacked material queue is the same as the speed at which the paper sheet conveyor 720 conveys the paper sheet, thus preparing for the subsequent stacked material queue to fall into the paper sheet.

[0080] Reference Figure 5 The folding mechanism 600 is located downstream of the paper feeding mechanism 700. Specifically, the folding mechanism 600 includes: a first folding wheel group 611, a second folding wheel group 612, a folding guide plate 630, a folding drive assembly 640, and a folding support wheel 650.

[0081] The first folding wheel assembly 611 and the second folding wheel assembly 612 are arranged at intervals along the material conveying channel. The second folding wheel assembly 612 is located downstream of the first folding wheel assembly 611.

[0082] Specifically, both the first folding wheel assembly 611 and the second folding wheel assembly 612 include: folding wheel bodies 621 and folding connecting shafts 622. Two folding wheel bodies 621 are provided, arranged at intervals along a direction perpendicular to the material conveying channel. The two folding wheel bodies 621 are respectively located on both sides of the material conveying channel to fold both sides of the paper sheet. The folding wheel bodies 621 are fixedly connected to the folding connecting shaft 622, thereby fixing the two folding wheel bodies 621 relative to each other.

[0083] The origami drive assembly 640 is mounted on the frame 100. The origami drive assembly 640 includes a origami drive motor, a drive belt, and drive pulleys. Specifically, in this embodiment, four drive pulleys are used. Two of these pulleys are fixed to the two origami connecting shafts 622 of the first origami wheel assembly 611 and the second origami wheel assembly 612, respectively. Of the remaining two drive pulleys, one is used as a tensioning pulley, and the other is fixedly connected to the output end of the origami drive motor. The drive belt passes around the multiple drive pulleys to achieve transmission across them. The origami drive motor drives the first origami wheel assembly 611 and the second origami wheel assembly 612 via the belt structure.

[0084] Specifically, in this embodiment, the radius of the drive pulley corresponding to the second folding wheel group 612 is slightly smaller than the radius of the drive pulley corresponding to the first folding wheel group 611. This ensures that the linear velocity of the edge of the folding wheel body 621 of the second folding wheel group 612 is slightly greater than the linear velocity of the edge of the folding wheel body 621 of the first folding wheel group 611. This prevents the speed at the front end of the paper sheet from being slower than the speed at the rear end during transport, thereby preventing accidental wrinkling or damage to the paper sheet and avoiding paper jams. In other embodiments, the linear velocity of the edge of the folding wheel body 621 of the second folding wheel group 612 can also be set to be equal to the linear velocity of the edge of the folding wheel body 621 of the first folding wheel group 611. Those skilled in the art can set the speed difference between the first folding wheel group 611 and the second folding wheel group 612 according to actual needs.

[0085] The origami support roller 650 is located below the origami wheel body 621. The origami support roller 650 corresponds one-to-one with the origami wheel body 621. The rotation axis of the origami support roller 650 is parallel to the rotation axis of the origami wheel body 621. The origami support roller 650 is used to support the paper. The origami support roller 650, together with the origami wheel body 621, can clamp and feed the paper. At the same time, it can reduce the sliding friction between the paper and other components during the forward feeding process to avoid damage to the paper.

[0086] Two origami guide plates 630 are provided, and the two origami guide plates 630 are respectively arranged on both sides of the material conveying channel. Specifically, the origami guide plate 630 has a guiding part 631 and a shaping part 632, and the guiding part 631 is located upstream of the shaping part 632.

[0087] The guide part 631 is located on the side of the first guide wheel group and the folding wheel body 621 of the second guide wheel group away from the material conveying channel. Along the extension direction of the material conveying channel, the guide part 631 gradually approaches the material conveying direction (that is, the distance between the guide parts 631 of the two folding guide plates 630 gradually narrows), and the upper end surface of the guide part 631 is inclined from bottom to top. The lowest end of the upper end surface of the guide part 631 is lower than the material conveying channel, so that when the flat paper sheet is conveyed along the material conveying channel, the two sides of the paper sheet abut against the upper end surface of the guide part 631 of the two folding guide plates 630. At the same time, the lower end of the folding wheel body 621 of the first guide wheel group abuts against the middle of the paper sheet. As the paper sheet continues to move, the two sides of the paper sheet are guided by the guide part 631, while the middle of the paper sheet is limited by the folding wheel body 621, so that the two sides of the paper sheet gradually fold upward as the paper sheet continues to move forward.

[0088] The shaping section 632 is configured as a flat, plate-like component. It is located on the outer side of the paper sheet and on the side of the folding wheel body 621 of the first and second guide wheel groups away from the material conveying channel. When both sides of the paper sheet are folded to a right angle with the center, as the paper sheet continues to be conveyed forward, the two side plates enter between the shaping section 632 and the folding wheel body 621 of the first folding wheel group 611. The shaping section 632 and the folding wheel body 621 work together to restrict the folded paper sheet, keeping the two side walls and the center of the paper sheet at a right angle for a period of time to prevent the paper sheet from springing back after folding. The shaping section 632, in conjunction with the first and second folding wheel groups 611 and 612, can shape the two side walls of the folded paper tray to ensure the quality of the final formed paper tray.

[0089] The workflow of this invention is as follows:

[0090] The material moves along the material conveying channel via the first feeding mechanism 200;

[0091] After the material arrives at the stacking mechanism 300, the stacking swing drive 320 drives the stacking swing structure 310 to swing, so that the material is divided into upper and lower layers (the number of stacking layers in this scheme is two layers); after the material is divided into upper and lower layers, the second feeding mechanism 400 drives the layered material to continue to move along the material conveying channel.

[0092] Multi-layer materials are conveyed into the stacking area 101 by the second feeding mechanism 400. The material at the top falls due to its own gravity, and the two layers of materials are stacked to form a stable stacked material.

[0093] The second feeding mechanism 400 continues to convey the stacked material to the discharge area 102.

[0094] The stacked materials stay in the discharge area 102. The stacked materials are discharged according to the discharge quantity (the discharge quantity in this scheme is four groups), forming a stacked material queue. The stacked material queue waits for the third feeding mechanism 500 in the discharge area 102.

[0095] The third feeding mechanism 500 is in place and drives the stacked material queue to continue moving along the material conveying channel;

[0096] At the same time, the paper feeding device 710 of the paper feeding mechanism 700 feeds a single paper sheet into the first paper feeding section 721, and then the first paper feeding section 721 feeds the paper sheet into the second paper feeding section 723, and the second paper feeding section 723 continues to feed the paper sheet, so that the paper sheet is transported synchronously with the stacked material queue.

[0097] After the stacked material queue leaves the third feeding mechanism 500, it continues to be conveyed by the second paper feeding section 723 until the stacked material queue leaves the second frame support plate. Due to its own gravity, the stacked material queue falls onto the paper sheet. The second paper feeding section 723 continues to convey the paper sheet containing the stacked material queue, so that the paper sheet and the stacked material queue continue to be conveyed together along the material conveying channel.

[0098] The paper sheet moves to the folding mechanism 600, which folds up both sides of the paper sheet to form a paper support.

[0099] The stacked materials and paper trays are then output together to the equipment for the next process.

[0100] This invention enables a continuous production process of automatic material stacking, automatic arrangement of stacked materials, automatic loading of stacked materials into trays, and automatic folding of paper trays, which can significantly improve packaging efficiency and quality.

[0101] The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A folded paper tray stacker food product packaging line characterized by: The paper tray folding and stacking material packaging line comprises: a first feeding mechanism for moving the material along the material conveying channel; a stacking mechanism arranged downstream of the first feeding mechanism, the stacking mechanism being used for dividing the material into multiple layers according to the number of stacking layers, and the multiple layers of material being arranged in the up-down direction; a stacking area arranged downstream of the stacking mechanism, the material being stacked in the stacking area according to the number of stacking layers to obtain stacked material; a second feeding mechanism arranged at the start end of the first feeding mechanism, the second feeding mechanism being used for moving the multiple layers of material along the material conveying channel; a material arranging area arranged at the end of the second feeding mechanism, the stacked material being arranged in the material arranging area according to the number of arranged materials, so that the multiple layers of stacked material are closely arranged to obtain a stacked material queue; a third feeding mechanism arranged at the end of the second feeding mechanism, the third feeding mechanism being used for moving the stacked material queue along the material conveying channel; a paper feeding mechanism comprising a first paper feeding section and a second paper feeding section, the first paper feeding section being used for feeding the paper sheet, and the second paper feeding section being used for synchronously feeding the paper sheet with the stacked material queue; a paper folding mechanism arranged downstream of the paper feeding mechanism, the paper folding mechanism being used for folding the two sides of the paper sheet to form a paper tray; the stacking mechanism comprises: a stacking swing structure capable of swinging up and down relative to the material conveying channel; a stacking swing driving member having an output end fixed to the stacking swing structure; a stacking temporary storage structure arranged downstream of the stacking swing structure, the stacking temporary storage structure comprising multiple layer conveying channels arranged in the up-down direction; the stacking swing driving member drives the stacking swing structure to swing up and down, so that the end of the stacking swing structure is switchably connected to the multiple layer conveying channels; further comprising: an inspection and maintenance turnover frame arranged above the material conveying channel, the third feeding mechanism being mounted on the inspection and maintenance turnover frame, the inspection and maintenance turnover frame being capable of being turned about an axis parallel to the horizontal direction relative to the material conveying channel, so that the inspection and maintenance turnover frame is away from the material conveying channel; the paper folding mechanism comprises: two paper folding wheel sets arranged along the material conveying channel, each of the paper folding wheel sets comprising two paper folding wheel bodies and a paper folding connecting shaft, the two paper folding wheel bodies being arranged on the two sides of the material conveying channel, respectively, and the paper folding wheel bodies being fixed to the paper folding connecting shaft; a paper folding guide plate used for folding the two sides of the paper sheet upward; a paper folding driving assembly drivingly connected to the paper folding wheel sets, so that the two paper folding wheel sets work synchronously; the two paper folding wheel sets are respectively a first paper folding wheel set and a second paper folding wheel set, the second paper folding wheel set being arranged downstream of the first paper folding wheel set, the linear speed of the edge of the paper folding wheel body of the second paper folding wheel set being a second linear speed, and the linear speed of the edge of the paper folding wheel body of the first paper folding wheel set being a first linear speed, the second linear speed being greater than the first linear speed.

2. The origami nest layer food product packaging line of claim 1, wherein: The end of the second paper feeding section is arranged downstream of the end of the third feeding mechanism, so that after the stack material queue is separated from the third feeding mechanism, the second paper feeding section continues to feed the stack material queue.

3. The origami nest laminate food product packaging line of claim 1, wherein: The first paper feeding section is arranged beside the material conveying channel, and the feeding direction of the first paper feeding section is inclined relative to the second paper feeding section.

4. The origami nest laminate food product packaging line of claim 1, wherein: The first feeding mechanism, the second feeding mechanism and the third feeding mechanism each comprise: a feeding cycle driving assembly; a plurality of feeding levers, which are uniformly distributed on the feeding cycle driving assembly, and the feeding cycle driving assembly drives the plurality of feeding levers to move cyclically.

5. The origami nest laminate food product packaging line of claim 1, wherein: The folding paper guide plate is provided with a guide portion and a shaping portion; along the extension direction of the material conveying channel, the guide portion gradually approaches the material conveying channel and is inclined from bottom to top.

6. The origami nest laminate food product packaging line of claim 1, wherein: The folding paper wheel set further comprises a folding paper supporting wheel arranged below the folding paper wheel body, the folding paper supporting wheel corresponds to the folding paper wheel body one by one, the folding paper supporting wheel is a rotatable member, the rotation axis of the folding paper supporting wheel is parallel to the rotation axis of the folding paper wheel body, and the folding paper supporting wheel is used for supporting the paper sheet.

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