Packaging equipment for jigsaw puzzles

By integrating bagging, sealing, and conveying mechanisms in a vertical layout, the problem of secondary manual boxing required by existing jigsaw puzzle packaging equipment has been solved, realizing a highly efficient and automated jigsaw puzzle packaging process that reduces manual intervention and space occupation.

CN120840928APending Publication Date: 2025-10-28NINGBO CHARRON PAPER IND CO LTD
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Patent Information

Application Number
CN202511128737.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-13
Publication Date
2025-10-28

AI Technical Summary

Technical Problem

Existing jigsaw puzzle packaging equipment can only complete the bagging and sealing process. Additional manual labor or equipment is required for boxing, resulting in process fragmentation, high labor costs, and wasted space.

Method used

Design a packaging device that integrates bagging, sealing, and conveying mechanisms. The vertical layout enables seamless process connection. Components such as storage bins, feeding cylinders, single feeding structures, and vacuum suction heads are used to achieve directional supply and precise positioning of the box lid, ensuring accurate matching between the sealing action and the falling trajectory of the puzzle pieces.

Benefits of technology

It achieves automated bagging, sealing and output, reducing manual intervention by more than 80%, saving 60% of production line floor space, and eliminating secondary transfer links.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of puzzle packaging, and particularly discloses packaging equipment for puzzle toys, which comprises a bagging mechanism, a discharging channel is arranged below a bag outlet of the bagging mechanism, and box sealing mechanisms for sealing boxes of puzzles bagged by the bagging mechanism are arranged on the two sides of the discharging channel. And the conveying mechanism is used for conveying the sealed jigsaw puzzles. After the bagging mechanism completes puzzle bagging, the bagged puzzles enter the discharging channel through the bag outlet. The box sealing mechanisms on the two sides of the discharging channel synchronously conduct box sealing operation on the falling bagged jigsaw puzzles, and the conveying mechanism receives and outputs finished products obtained after box sealing. According to the structure, bagging, box sealing and conveying processes are integrated in single equipment, seamless connection of the processes is achieved through space vertical layout, the link that secondary transfer to an independent box packing station is needed after bagging in a traditional process is eliminated, and manual intervention and site occupation are remarkably reduced.
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Description

Technical Field

[0001] This application relates to the field of puzzle packaging technology, and in particular to a packaging device for puzzle toys. Background Technology

[0002] Puzzle toys are widely favored by consumers for their educational and entertaining nature. However, before the finished products leave the factory, the scattered puzzle pieces need to be packaged in an orderly manner to prevent loss or confusion during transportation. Traditional packaging processes rely on manual sorting and sealing, which is inefficient and prone to errors. In recent years, the industry has gradually adopted semi-automatic packaging equipment to replace manual operation in order to improve the standardized packaging efficiency of puzzle products.

[0003] Common jigsaw puzzle packaging equipment mainly consists of a plastic film unwinding mechanism, a bag forming device, a puzzle filling channel, and a heat-sealing and cutting unit. The workflow is as follows: the tubular plastic film is rolled into a vertical sleeve by the bag forming device; the disassembled puzzle pieces are then arranged by a vibrating plate and fall into the sleeve; subsequently, the equipment performs horizontal heat sealing and cutting on the plastic sleeve containing the puzzle pieces, forming an independently sealed transparent bag unit, ultimately outputting a single-bag packaged jigsaw puzzle product.

[0004] However, such equipment can only complete the bagging and sealing process of the puzzle pieces. The bagged puzzle pieces are still loose after sealing and need to be manually or transported to be placed into cardboard boxes, and then sealed, labeled, and other subsequent operations to form the final sales packaging. This segmented processing requires a separate cartoning machine or additional manual cartoning process, which significantly occupies space and increases the overall cost. Therefore, improvements are urgently needed. Summary of the Invention

[0005] To address the problems of existing packaging equipment being limited to bagging puzzle pieces, requiring secondary manual or machine-made boxing, resulting in process disruptions, high labor costs, and wasted space, this application provides a packaging device for puzzle toys.

[0006] This application provides a packaging device for jigsaw puzzle toys, which adopts the following technical solution:

[0007] A packaging device for jigsaw puzzles includes a bagging mechanism, a feeding channel below the bag outlet of the bagging mechanism, a sealing mechanism on both sides of the feeding channel for sealing the jigsaw puzzles after they have been bagged by the bagging mechanism, and a conveying mechanism for transporting the sealed jigsaw puzzles.

[0008] By adopting the above technical solution, after the bagging mechanism completes the bagging of the jigsaw puzzle pieces, the bagged puzzle pieces enter the feeding channel through the bag outlet. Simultaneously, the sealing mechanisms on both sides of the feeding channel seal the falling bagged puzzle pieces, while the conveying mechanism receives and outputs the sealed finished product. This structure integrates the bagging, sealing, and conveying processes into a single device, achieving seamless process connection through a vertical spatial layout. It eliminates the need for secondary transfer to a separate boxing station after bagging, as required in traditional processes, significantly reducing manual intervention and space occupation.

[0009] Optionally, the sealing mechanism includes a storage bin, a feeding cylinder, a single feeding structure, and a sealing structure. The storage bin includes two lid storage bins located on both sides of the feeding channel. Each of the two lid storage bins is equipped with a lid for sealing the puzzle after it has been bagged by the bagging mechanism. The bottom of each of the two lid storage bins is provided with a feeding port for single feeding of the lid.

[0010] The feeding cylinder is fixed to the bottom of the storage bin and its end is connected to the feeding port. Two sets of single feeding structures are provided. Both single feeding structures are located inside the feeding cylinder and on both sides of the feeding channel.

[0011] A fixing plate is fixed at the lower end of the feeding cylinder. The fixing plate has clearance slots corresponding to the two single feeding structures. The sealing structure is located below the fixing plate and is used to seal the puzzle after it is fed by the feeding channel.

[0012] By adopting the above technical solution, the two lid storage compartments of the storage bin pre-store lids, and the discharge port at the bottom allows the lids to fall individually into the discharge cylinder. The individual discharge structure is located inside the discharge cylinder and arranged along both sides of the discharge channel, precisely controlling the release rhythm of the lids. The clearance groove of the fixing plate provides a falling path for the lids, and the sealing structure connects to the falling bagged puzzle pieces below the fixing plate to perform the sealing action. This design, through the vertical coordination of the storage bin, discharge cylinder, and fixing plate, achieves directional supply and precise positioning of the lids, ensuring that the sealing action and the falling trajectory of the puzzle pieces are precisely matched.

[0013] Optionally, the single discharge structure includes a first telescopic cylinder and a push plate disposed at the telescopic end of the first telescopic cylinder. The first telescopic cylinder is mounted on the fixed plate, and the push plate is used to push the box cover falling from the discharge port into the clearance groove.

[0014] By adopting the above technical solution, the first telescopic cylinder drives the pusher plate to move horizontally within the feeding cylinder. When the lid falls from the feeding port, the pusher plate pushes the lid laterally to directly above the clearance slot. This structure achieves precise separation and positioning of a single lid, avoiding jamming or misalignment caused by multiple lids falling simultaneously.

[0015] Optionally, the sealing structure includes a second telescopic cylinder and a vacuum suction head disposed at the telescopic end of the second telescopic cylinder, the vacuum suction head being connected to an external vacuum system.

[0016] By adopting the above technical solution, the second telescopic cylinder drives the vacuum suction head to approach and adhere to the side wall of the box lid, and the external vacuum system causes the vacuum suction head to generate negative pressure to adsorb the box lid; when the bagged puzzle falls to the sealing station through the clearance channel, the two vacuum suction heads carrying two different box lids approach each other and finally wrap the puzzle and complete the final sealing, realizing the rapid boxing process of the puzzle.

[0017] Optionally, two opening and closing plates are also provided below the sealing structure. The two opening and closing plates abut against each other at their close ends and are provided with a third telescopic cylinder at their far ends for controlling the two opening and closing plates to move closer or further apart.

[0018] A material discharge channel is provided between the two opening and closing plates. The material discharge channel is in a closed state before the two box lids are closed, and in an open state after the two box lids are closed.

[0019] By adopting the above technical solution, the third telescopic cylinder controls the horizontal opening and closing of the two opening and closing plates: before the box is closed, the two opening and closing plates abut to form a closed support surface to prevent unsealed puzzle pieces from accidentally falling; after the box is closed, the third telescopic cylinder pulls the opening and closing plates apart to open the material drop channel. This dynamic opening and closing structure achieves automatic switching between support and release through mechanical interlocking, ensuring the stability of the sealing process.

[0020] Optionally, the conveying mechanism includes a mounting base and a conveyor belt fixed to the mounting base, the belt surface of which extends from the material discharge channel outwards from the packaging equipment.

[0021] By adopting the above technical solution, the mounting base fixes the conveyor belt, and the belt surface extends from directly below the material drop channel to the outside of the equipment. When the opening and closing plate opens the material drop channel, the sealed boxed products fall directly onto the conveyor belt surface, and the continuous movement of the belt surface smoothly outputs the finished products. This layout utilizes the combination of gravity-feeding and linear conveyor belt transport to achieve automated flow of finished products from packaging to output.

[0022] Optionally, a guide plate for guiding the puzzle pieces after sealing and a guide frame for tilting and supporting the guide plate are provided below the two opening and closing plates. The guide plate is located directly below the dropping channel and is used to guide the puzzle pieces falling from the dropping channel onto the conveyor belt.

[0023] By adopting the above technical solution, the guide frame tilts to support the guide plate, which is located directly below the dropping channel. After the sealed box product falls through the dropping channel, it slides along the inclined surface of the guide plate into the conveyor belt. This tilted guiding structure reduces the impact force of the falling product through angle buffering, avoiding collision and deformation of the box body, while guiding the product to fall accurately into the center area of ​​the conveyor belt, preventing conveying deviation.

[0024] Furthermore, a photoelectric sensor is installed in the feeding channel. This sensor is connected to the control system signal of the sealing mechanism and is used to trigger the synchronous operation of the single feeding structure and the sealing structure when the bagged puzzle is detected falling.

[0025] Furthermore, the box cover storage compartment is provided with vertically stacked box covers, the width of the bottom discharge port is less than the diagonal length of a single box cover but greater than the thickness of the box cover, and the edge of the discharge port is provided with a limiting stop to prevent the box cover from tilting.

[0026] Furthermore, the inner edges of the two opening and closing plates are provided with a buffer pad layer, and the third telescopic cylinder is interlocked with the pressure sensor of the vacuum suction head, and the opening and closing action is performed only after the lid is detected to be closed.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] The vertically integrated design of the bagging mechanism, sealing mechanism, and conveying mechanism in this invention breaks through the limitation of traditional jigsaw puzzle packaging equipment that can only complete bagging. The sealing mechanism employs symmetrically arranged storage bins and feeding cylinders on both sides of the feeding channel, combined with a pusher plate mechanically separating the single feeding structure and a vacuum suction head for negative pressure sealing, achieving synchronous sealing of the bagged jigsaw puzzle pieces during their descent. This integrated architecture compresses the bagging, cap removal, box sealing, and output processes into a single vertical space, completely eliminating secondary transfer links, reducing manual intervention by more than 80%, and saving 60% of production line floor space. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of the packaging equipment in the embodiments of this application.

[0030] Figure 2 yes Figure 1 A schematic diagram of the structure of the sealing mechanism and the conveying mechanism.

[0031] Figure 3 yes Figure 2 A schematic diagram of the structure of the sealing box mechanism.

[0032] Reference numerals in the attached drawings: 1. Bagging mechanism; 2. Feeding channel; 3. Sealing mechanism; 31. Storage bin; 311. Box lid storage bin; 32. Feeding cylinder; 33. Single feeding structure; 331. First telescopic cylinder; 332. Push plate; 34. Sealing structure; 341. Second telescopic cylinder; 342. Vacuum suction head; 4. Conveying mechanism; 41. Mounting base; 42. Conveyor belt; 5. Fixing plate; 51. Clearance groove; 6. Opening and closing plate; 7. Third telescopic cylinder; 8. Guide plate; 9. Guide frame. Detailed Implementation

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0034] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] The following is combined with Figure 1-3 This application will be described in further detail below.

[0037] This application discloses a packaging device for jigsaw puzzle toys.

[0038] Reference Figure 1 A packaging device for jigsaw puzzle toys includes a bagging mechanism 1, a feeding channel 2 provided below the bag outlet of the bagging mechanism 1, a sealing mechanism 3 provided on both sides of the feeding channel 2 for sealing the jigsaw puzzles after they are bagged by the bagging mechanism 1, and a conveying mechanism 4 for conveying the sealed jigsaw puzzles.

[0039] The bagging mechanism 1 is a well-known technology to those skilled in the art, and the improvement in this embodiment is not in the bagging mechanism 1. Therefore, the bagging mechanism 1 will not be described in detail in this embodiment.

[0040] In this embodiment, all the electrical control components are electrically connected to the control system integrated with the packaging equipment, enabling a fully automated process of bagging, sealing, and discharging the puzzle pieces.

[0041] Reference Figure 1 After the bagging mechanism 1 completes the bagging of the puzzle pieces, the bagged puzzle pieces enter the unloading channel 2 through the bag outlet. The sealing mechanisms 3 on both sides of the unloading channel 2 simultaneously seal the falling bagged puzzle pieces, and the conveying mechanism 4 receives the sealed finished product and outputs it. This structure integrates the bagging, sealing, and conveying processes into a single device, achieving seamless process connection through a vertical spatial layout. It eliminates the need for secondary transfer to an independent boxing station after bagging, which is required in traditional processes, significantly reducing manual intervention and space occupation.

[0042] Reference Figure 1 The sealing mechanism 3 includes a storage bin 31, a feeding cylinder 32, a single feeding structure 33, and a sealing structure 34. The storage bin 31 includes two lid storage bins 311 located on both sides of the feeding channel 2. The two lid storage bins 311 are respectively equipped with lids for sealing the puzzle after it has been bagged by the bagging mechanism 1. The bottom of the two lid storage bins 311 is provided with a feeding port for single feeding of the lids.

[0043] The feeding cylinder 32 is fixed to the bottom of the storage bin 31 and its end is connected to the feeding port. There are two sets of single feeding structures 33. Both single feeding structures 33 are located inside the feeding cylinder 32 and on both sides of the feeding channel 2.

[0044] Reference Figure 1 The lower end of the feeding cylinder 32 is fixed with a fixing plate 5. The fixing plate 5 has a clearance groove 51 corresponding to the two single feeding structures 33. The sealing structure 34 is set below the fixing plate 5 and is used to seal the puzzle after it is fed by the feeding channel 2.

[0045] The two lid storage compartments 311 of the storage compartment 31 pre-store lids, and the discharge port at the bottom allows the lids to fall into the discharge cylinder 32 one by one. The single discharge structure 33 is located in the discharge cylinder 32 and arranged along both sides of the discharge channel 2 to precisely control the release rhythm of the lids.

[0046] The clearance groove 51 of the fixing plate 5 provides a falling path for the lid, and the sealing structure 34 connects to the falling bagged puzzle below the fixing plate 5 to perform the sealing action. This design achieves directional supply and precise positioning of the lid through the vertical coordination of the storage bin 31, the feeding cylinder 32, and the fixing plate 5, ensuring that the sealing action and the puzzle falling trajectory are precisely matched.

[0047] Reference Figure 1 The single feeding structure 33 includes a first telescopic cylinder 331 and a push plate 332 disposed at the telescopic end of the first telescopic cylinder 331. The first telescopic cylinder 331 is mounted on the fixed plate 5, and the push plate 332 is used to push the box cover falling from the feeding port to the clearance groove 51.

[0048] The first telescopic cylinder 331 drives the pusher plate 332 to move horizontally within the feeding cylinder 32. When the lid falls from the feeding port, the pusher plate 332 pushes the lid laterally to directly above the clearance groove 51. This structure achieves precise separation and positioning of a single lid, avoiding jamming or misalignment caused by multiple lids falling simultaneously.

[0049] Reference Figure 1 The sealing structure 34 includes a second telescopic cylinder 341 and a vacuum suction head 342 disposed at the telescopic end of the second telescopic cylinder 341. The vacuum suction head 342 is connected to an external vacuum system.

[0050] The second telescopic cylinder 341 drives the vacuum suction head 342 to approach and adhere to the side wall of the box lid. The external vacuum system causes the vacuum suction head 342 to generate negative pressure to adsorb the box lid. When the bagged puzzle falls to the sealing station through the clearance channel 51, the two vacuum suction heads 342 carry two different box lids to approach each other and finally wrap the puzzle and complete the final sealing, realizing the rapid boxing process of the puzzle.

[0051] In this embodiment, a photoelectric sensor is provided in the feeding channel 2. The sensor is connected to the control system signal of the sealing mechanism 3 and is used to trigger the synchronous operation of the single feeding structure 33 and the sealing structure 34 when the bagged puzzle is detected falling.

[0052] Furthermore, the box cover storage compartment 311 is provided with vertically stacked box covers, the width of the bottom discharge port is less than the diagonal length of a single box cover but greater than the thickness of the box cover, and the edge of the discharge port is provided with a limiting stop to prevent the box cover from tilting.

[0053] Reference Figure 1 Below the sealing structure 34, there are two opening and closing plates 6. The two opening and closing plates 6 are close to each other at one end and are respectively equipped with a third telescopic cylinder 7 for controlling the two opening and closing plates 6 to move closer or further apart.

[0054] Furthermore, refer to Figure 1A material discharge channel is provided between the two hinged plates 6. The material discharge channel is closed before the two lids are closed and is open after the two lids are closed.

[0055] The third telescopic cylinder 7 controls the horizontal opening and closing of the two opening and closing plates 6: before the box is closed, the two opening and closing plates 6 abut to form a closed support surface to prevent unsealed puzzle pieces from accidentally falling; after the box is closed, the third telescopic cylinder 7 pulls the opening and closing plates 6 to separate and open the material drop channel. This dynamic opening and closing structure achieves automatic switching between support and release through mechanical interlocking, ensuring the stability of the sealing process.

[0056] Furthermore, the inner edges of the two opening and closing plates 6 are provided with a buffer pad layer, and the third telescopic cylinder 7 is interlocked with the pressure sensor of the vacuum suction head 342, and the opening and closing action is performed only after the lid is detected to be closed.

[0057] Reference Figure 1 The conveying mechanism 4 includes a mounting base 41 and a conveyor belt 42 fixed on the mounting base 41. The belt surface of the conveyor belt 42 extends from the material drop channel to the outside of the packaging equipment.

[0058] Mounting base 41 secures conveyor belt 42, the belt surface of which extends from directly below the material drop channel to the outside of the equipment. When the opening and closing plate 6 opens the material drop channel, the sealed finished products fall directly onto the belt surface of conveyor belt 42, and the continuous movement of the belt surface smoothly outputs the finished products. This layout utilizes the combination of gravity-fed material drop and linear conveying by conveyor belt 42 to achieve automated flow of finished products from packaging to output.

[0059] Reference Figure 1 Below the two opening and closing plates 6, there are guide plates 8 for guiding the puzzle pieces after sealing, and guide frames 9 for tilting and supporting the guide plates 8. The guide plates 8 are located directly below the dropping channel and are used to guide the puzzle pieces falling from the dropping channel onto the conveyor belt 42.

[0060] The guide frame 9 tilts to support the guide plate 8, which is located directly below the drop channel. After the sealed box product falls through the drop channel, it slides along the inclined surface of the guide plate 8 into the conveyor belt 42. This tilted guide structure reduces the impact force of the falling product by buffering the angle, avoiding collision and deformation of the box, and at the same time guides the product to fall accurately into the center area of ​​the conveyor belt 42 to prevent conveying deviation.

[0061] The implementation principle of a packaging device for jigsaw puzzles according to an embodiment of this application is as follows: After the device is started, the bagging mechanism 1 seals the puzzle pieces in a cylindrical plastic film, and the bagged puzzle pieces fall from the bag outlet into the feeding channel 2; the sealing mechanisms 3 on both sides are triggered to operate simultaneously: the box cover storage compartment 311 of the storage compartment 31 releases the box cover to the feeding cylinder 32, and the first telescopic cylinder 331 drives the push plate 332 to push the box cover laterally to the clearance groove 51 of the fixed plate 5;

[0062] When the falling bagged puzzle pieces arrive at the sealing station, the second telescopic cylinder 341 drives the vacuum suction head 342 to attract the lids together and finally close them. After sealing, the third telescopic cylinder 7 pulls the opening and closing plate 6 to separate and open the material drop channel. The finished product is buffered and guided by the guide plate 8 and falls onto the conveyor belt 42, which continuously outputs it to the collection area. The entire process is achieved through precise coordination of vertical flow control and mechanical actions, realizing seamless connection of bagging, sealing, and output.

[0063] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0064] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A packaging device for jigsaw puzzle toys, characterized in that: It includes a bagging mechanism (1), a feeding channel (2) is provided below the bag outlet of the bagging mechanism (1), a sealing mechanism (3) is provided on both sides of the feeding channel (2) for sealing the puzzle after the bagging mechanism (1) has bagged the puzzle, and a conveying mechanism (4) for conveying the puzzle after sealing the puzzle.

2. The packaging device for jigsaw puzzle toys according to claim 1, characterized in that: The sealing mechanism (3) includes a storage bin (31), a feeding cylinder (32), a single feeding structure (33), and a sealing structure (34). The storage bin (31) includes two lid storage bins (311) located on both sides of the feeding channel (2). The two lid storage bins (311) are respectively equipped with lids for sealing the puzzle after it has been bagged by the bagging mechanism (1). The bottom of the two lid storage bins (311) is provided with a feeding port for single feeding of the lid. The feeding cylinder (32) is fixed to the bottom of the storage bin (31) and its end is connected to the feeding port. There are two sets of single feeding structures (33). Both single feeding structures (33) are located inside the feeding cylinder (32) and on both sides of the feeding channel (2). The lower end of the feeding cylinder (32) is fixed with a fixing plate (5). The fixing plate (5) is provided with clearance slots (51) corresponding to the two single feeding structures (33). The sealing structure (34) is located below the fixing plate (5) and is used to seal the puzzle after it is fed by the feeding channel (2).

3. A packaging device for jigsaw puzzle toys according to claim 2, characterized in that: The single discharge structure (33) includes a first telescopic cylinder (331) and a push plate (332) disposed at the telescopic end of the first telescopic cylinder (331). The first telescopic cylinder (331) is mounted on the fixed plate (5), and the push plate (332) is used to push the box cover falling from the discharge port to the clearance groove (51).

4. A packaging device for jigsaw puzzle toys according to claim 2, characterized in that: The sealing structure (34) includes a second telescopic cylinder (341) and a vacuum suction head (342) disposed at the telescopic end of the second telescopic cylinder (341), the vacuum suction head (342) being connected to an external vacuum system.

5. A packaging device for jigsaw puzzle toys according to claim 2, characterized in that: Below the sealing structure (34), there are two opening and closing plates (6). The two opening and closing plates (6) are close to each other at one end and are far apart at the other end, each of which is provided with a third telescopic cylinder (7) for controlling the two opening and closing plates (6) to move closer or further apart. A material discharge channel is provided between the two opening and closing plates (6). The material discharge channel is in a closed state before the two box covers are closed, and in an open state after the two box covers are closed.

6. A packaging device for jigsaw puzzle toys according to claim 5, characterized in that: The conveying mechanism (4) includes a mounting base (41) and a conveyor belt (42) fixed on the mounting base (41), the belt surface of which extends from the material drop channel outward to the packaging equipment.

7. A packaging device for jigsaw puzzle toys according to claim 6, characterized in that: Below the two opening and closing plates (6) are a guide plate (8) for guiding the puzzle after sealing and a guide frame (9) for tilting and supporting the guide plate (8). The guide plate (8) is located directly below the dropping channel and is used to guide the puzzle falling from the dropping channel onto the conveyor belt (42).

8. A packaging device for jigsaw puzzle toys according to claim 1, characterized in that: The feeding channel (2) is equipped with a photoelectric sensor, which is connected to the control system signal of the sealing mechanism (3) and is used to trigger the single feeding structure (33) and the sealing structure (34) to operate synchronously when the bagged puzzle is detected to fall.

9. A packaging device for jigsaw puzzle toys according to claim 2, characterized in that: The box cover storage compartment (311) is provided with vertically stacked box covers. The width of the bottom discharge port is less than the diagonal length of a single box cover and greater than the thickness of the box cover. The edge of the discharge port is provided with a limiting stop to prevent the box cover from tilting.

10. A packaging device for jigsaw puzzle toys according to claim 5, characterized in that: The inner edges of the two opening and closing plates (6) are provided with a buffer pad layer, and the third telescopic cylinder (7) is interlocked with the pressure sensor of the vacuum suction head (342), and the opening and closing action is performed only after the lid is detected to be closed.