High-temperature packaging device for tofu pudding in bowl

By designing an automated film-pulling and cleaning mechanism, the problem of incomplete sealing of bowl-shaped tofu pudding was solved, achieving a highly efficient and airtight sealing effect, thus improving production efficiency and product quality.

CN224257025UActive Publication Date: 2026-05-19SICHUAN YUNSHIHUA BIOTECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN YUNSHIHUA BIOTECHNOLOGY CO LTD
Filing Date
2025-07-31
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

In existing technologies, the sealing of bowl-packaged tofu pudding is not tight due to water stains adhering to the rim of the bowl during the sealing process, which affects the airtightness and shelf life. In addition, uneven heating of milk tea sealing machines leads to problems such as leaks and incomplete sealing.

Method used

Design a high-temperature packaging device that includes a film-pulling mechanism, a lifting mechanism, and a cleaning mechanism. Through the coordinated work of the automated sealing and cleaning mechanisms, ensure the uniformity and airtightness of the seal and eliminate the impact of water stains.

Benefits of technology

The automated sealing process improves sealing performance, extends the shelf life of tofu pudding, and enhances production efficiency and product quality.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses a high-temperature packaging device for tofu pudding in bowls, which comprises a support frame and a film drawing mechanism arranged in the support frame. The conveying track is fixed in the support frame and is positioned below the film drawing mechanism; the conveying trough plate is arranged on the conveying track and used for placing the packaging bowls and conveying the packaging bowls to the position below the film drawing mechanism for sealing; the jacking mechanism is mounted at the inner top of the supporting frame through a supporting plate to downwards stretch the packaging film pulled by the film pulling mechanism to be in contact with the bowl opening of the packaging bowl so as to realize hot-pressing sealing; the cleaning mechanism is arranged on the side face of the supporting frame so as to clean the bowl openings of the packaging bowls entering the supporting frame. According to the packaging device, automatic sealing treatment can be conveniently conducted on the packaging bowls of the tofu pudding contained in the bowls, residual water stains on the bowl openings of the packaging bowls can be cleaned through the cleaning mechanism before sealing, and the situation that the sealing leakproofness is affected by the water stains on the bowl openings in the sealing process is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of soybean food processing technology, specifically a high-temperature packaging device for bowl-shaped tofu pudding. Background Technology

[0002] Bowl-packaged tofu pudding, a convenient food for home consumption and suitable for long-term storage, is widely used in supermarkets and other retail outlets due to its ease of use. In the processing of bowl-packaged tofu pudding, effectively sealing the rim of the packaging bowl is a crucial step in extending its shelf life. Sealing isolates the tofu pudding from external air, thus ensuring its quality and extending its shelf life.

[0003] Currently, in the processing of bowl-packaged tofu pudding, a milk tea sealing machine is conventionally used to seal the packaging bowls. However, during the process of placing the tofu pudding into the packaging bowl, some water stains inevitably adhere to the rim. If these water stains are not cleaned in time, they will seriously affect the subsequent sealing quality: on the one hand, the water stains will form a barrier between the sealing film and the rim of the bowl, preventing them from adhering tightly and compromising the seal's airtightness, allowing external air to easily enter the packaging bowl, thus shortening the tofu pudding's shelf life; on the other hand, the sealing principle of the milk tea sealing machine is mainly to melt the sealing film and adhere it to the rim of the bowl through heating, and the presence of water stains will affect the uniformity of heating, causing some areas to not adhere firmly, resulting in problems such as incomplete sealing or partial sealing, ultimately affecting the product quality and market circulation of the bowl-packaged tofu pudding. Utility Model Content

[0004] Therefore, in order to solve the above-mentioned shortcomings, this utility model provides a high-temperature packaging device for bowl-shaped tofu pudding. The packaging device, by setting a film pulling mechanism and a lifting mechanism, can facilitate the automated sealing operation of the packaging bowls conveyed on the lower conveying track. At the same time, combined with the cleaning mechanism at the outer end, it can facilitate the cleaning of water stains on the rim of the packaging bowl, avoiding water stains remaining on the rim and causing uneven heating during subsequent heating, resulting in problems such as leaks or incomplete sealing.

[0005] This utility model is implemented by constructing a high-temperature packaging device for bowl-shaped tofu pudding, including a support frame and an internal film-pulling mechanism.

[0006] The conveyor track is fixed inside the support frame and located below the film stretching mechanism;

[0007] The conveyor trough is set on the conveyor track to place the packaging bowls and convey them to the bottom of the film stretching mechanism for sealing;

[0008] The lifting mechanism, through the support plate installed at the top of the support frame, pulls the packaging film downwards to contact the mouth of the packaging bowl, thereby achieving heat sealing.

[0009] A cleaning mechanism is installed on the side of the support frame to clean the openings of the packaging bowls that enter the support frame.

[0010] Preferably, the film pulling mechanism includes a film feeding roller, a film taking-up roller, a guide roller, and a drive motor. The film feeding roller and the film taking-up roller are respectively arranged on the top two sides of the support frame, and the guide roller is arranged on the middle two sides of the support frame.

[0011] Preferably, the conveying track consists of support troughs arranged on both sides below the guide roller, with the conveying troughs being engaged between the support troughs to maintain linear movement. The conveying troughs are provided with slots for placing packaging bowls and cuts for cutting the packaging film.

[0012] Preferably, the lifting mechanism includes a lifting cylinder, which is fixed to the bottom of the support plate and keeps the telescopic end facing downward;

[0013] The lifting plate is fixed to the telescopic end of the lifting cylinder;

[0014] The pressure plate is elastically installed below the lifting plate via guide columns and elastic elements;

[0015] The sealing block is fixed to the pressure plate and corresponds to the position of the packaging bowl being conveyed on the conveyor track;

[0016] A sealing strip is installed at the bottom of the sealing block and corresponds to the opening of the packaging bowl. A heating medium flows inside the sealing strip.

[0017] The cutter is installed on the outside of the sealing strip and corresponds to the cut on the conveyor trough.

[0018] Preferably, the cleaning mechanism includes a cleaning roller and a scraper. The cleaning roller is rotatably mounted on the outer side of the support frame and keeps its bottom in contact with the mouth of the packaging bowl being conveyed on the conveying track. A sponge layer is sleeved on the outside of the cleaning roller. The scraper is inclinedly disposed at the outer end of the cleaning roller and keeps its top in contact with the sponge layer on the outside of the cleaning roller.

[0019] Preferably, the cleaning roller is connected to the film feeding roller in the film pulling mechanism by a belt drive.

[0020] Compared with the prior art, the present invention has the following advantages:

[0021] This packaging device, through the coordinated operation of a film-pulling mechanism and a lifting mechanism, can automatically seal the packaging bowls on the conveyor track, significantly reducing labor costs, minimizing errors caused by manual operation, and improving the standardization of the overall processing flow.

[0022] Meanwhile, the cleaning mechanism at the outer end can specifically clean water stains from the rim of the packaging bowl, preventing water residue from remaining on the rim. This eliminates the adverse effects of water stains on the sealing, ensures uniform heating, and reduces problems such as leaks or incomplete sealing caused by water stains. This results in a more secure and airtight seal on the packaging bowl, effectively extending the shelf life of the bowl-packaged tofu pudding and guaranteeing product quality.

[0023] Furthermore, the automated operation process speeds up the sealing of the packaging bowls, and the collaborative work of various mechanisms reduces the waiting time between processes. It can adapt to the needs of continuous production lines, significantly improve the overall production efficiency of bowl-packaged tofu pudding, and help meet the needs of large-scale production and market supply. Attached Figure Description

[0024] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the specific embodiments of the present invention to explain the present invention, but do not constitute any limitation on the present invention. In the drawings:

[0025] Figure 1 This is a schematic diagram of the structure of this utility model;

[0026] Figure 2 This is a structural schematic diagram from another perspective of the present invention;

[0027] Figure 3 This is a schematic diagram of the structure of this utility model without the cleaning mechanism;

[0028] Figure 4 for Figure 3 The diagram shows the internal structure of the support frame;

[0029] Figure 5 This is a schematic diagram of the lifting mechanism of this utility model;

[0030] Figure 6 This is a schematic diagram of the cleaning mechanism of this utility model;

[0031] In the diagram: 1. Support frame; 2. Support trough plate; 3. Film feeding roller; 4. Film taking roller; 5. Drive motor; 6. Packaging film; 7. Guide roller; 8. Cleaning roller; 9. Scraper; 10. Conveying trough plate; 11. Support plate; 12. Lifting cylinder; 13. Lifting plate; 14. Pressure plate; 15. Sealing block; 16. Cutter; 17. Sealing strip; 18. Guide post; 19. Elastic element. Detailed Implementation

[0032] The technical solution of this utility model will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only for illustration and explanation of this utility model and are not intended to limit this utility model in any way. The accompanying drawings in this utility model are only for illustrative purposes and to facilitate understanding of the embodiments and are not intended to limit this utility model in any way.

[0033] It should be noted that the structures, proportions, sizes, etc. shown in the accompanying drawings are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which the present invention can be implemented. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0034] As described in the background section, when sealing the packaging bowl of tofu pudding, existing milk tea sealing machines are usually used. However, when the tofu pudding is poured into the packaging bowl, water stains easily adhere to the rim of the bowl. If the bowl is sealed directly, the presence of water stains can easily cause the seal to be incomplete, thus affecting the storage of the tofu pudding.

[0035] Based on the above reasons, in order to solve the above problems, this utility model provides the following technical solution:

[0036] Example 1,

[0037] Please see the appendix Figure 1 ~Appendix Figure 4 A high-temperature packaging device for bowl-shaped tofu pudding includes a support frame 1 with a film-pulling mechanism inside.

[0038] The conveyor track is fixed inside the support frame 1 and located below the film stretching mechanism;

[0039] The conveyor trough 10 is set on the conveyor track to place the packaging bowls and convey them to the bottom of the film stretching mechanism for sealing;

[0040] The lifting mechanism, through the support plate 11 installed in the support frame 1, pulls the packaging film 6, which is pulled downward by the top film-pulling mechanism, to contact the mouth of the packaging bowl and achieve heat sealing.

[0041] A cleaning mechanism is installed on the side of the support frame 1 to clean the openings of the packaging bowls that enter the support frame 1.

[0042] Example 2,

[0043] Please see the appendix Figure 4Based on Embodiment 1, in order to realize the automatic traction of the packaging film and thus facilitate the automatic sealing of the packaging bowl, a feasible solution is provided here. The film pulling mechanism includes a film feeding roller 3, a film receiving roller 4, a guide roller 7, and a drive motor 5. The film feeding roller 3 and the film receiving roller 4 are respectively arranged on the top two sides of the support frame 1, and the guide roller 7 is arranged on the middle two sides of the support frame 1.

[0044] Example 3,

[0045] Please see the appendix Figure 1 ~Appendix Figure 4 Based on Embodiment 1, in order to achieve support and automatic conveying of the packaging bowl, thereby facilitating automated sealing, a feasible solution is provided here. The conveying track consists of support groove plates 2 arranged opposite to each other on both sides below the guide roller 7. The conveying groove plate 10 is engaged between the support groove plates 2 to maintain linear movement. The conveying groove plate 10 has slots for placing the packaging bowl and cuts for cutting the packaging film.

[0046] In this embodiment, the conveying trough 10 is automatically traction and conveyed by a transmission mechanism (such as a chain drive mechanism) preset in the support trough, so as to automatically convey the packaging bowl placed on the conveying trough 10 to the bottom of the film pulling mechanism for sealing.

[0047] Example 4,

[0048] Please see the appendix Figure 5 Based on Embodiment 1, in order to facilitate the application of the stretched packaging film to the opening of the packaging bowl below, and to achieve sealing and edge trimming, a feasible solution is provided here. The lifting mechanism includes a lifting cylinder 12, which is fixed to the bottom of the support plate 11 and keeps the telescopic end facing downward.

[0049] The lifting plate 13 is fixed to the telescopic end of the lifting cylinder 12;

[0050] The pressure plate 14 is elastically installed below the lifting plate 13 via the guide post 18 and the elastic element 19;

[0051] The sealing block 15 is fixed on the pressure plate 14 and corresponds to the position of the packaging bowl being conveyed on the conveyor track;

[0052] A sealing strip 17 is installed at the bottom of the sealing block 15 and corresponds to the opening of the packaging bowl. A heating medium flows inside the sealing strip 17.

[0053] The cutter 16 is installed on the outside of the sealing strip 17 and corresponds to the cut on the conveying trough plate 10.

[0054] The sealing principle of this embodiment is as follows: the lifting cylinder 12 extends and drives the pressure plate 14 to descend, pressing the packaging film 6 downward onto the conveying trough plate 10. The packaging film 6 is cut by the cutter 16 corresponding to the blade. Then, the sealing strip 17 contacts the mouth of the packaging bowl and the cut packaging film is attached to the mouth of the bowl by heat pressing, thus achieving heat sealing.

[0055] Example 5,

[0056] Please see the appendix Figure 6 Based on Embodiment 1, in order to facilitate the cleaning of the rims of the packaged bowls conveyed on the conveying trough, a feasible solution is provided here. The cleaning mechanism includes a cleaning roller 8 and a scraper 9. The cleaning roller 8 is rotatably mounted on the outer side of the support frame 1 and keeps its bottom in contact with the rims of the packaged bowls conveyed on the conveying track. A sponge layer is sleeved on the outside of the cleaning roller 8. The scraper 9 is inclinedly arranged at the outer end of the cleaning roller 8 and keeps its top in contact with the sponge layer outside the cleaning roller 8.

[0057] Furthermore, the inclined scraper can not only squeeze the sponge layer outside the cleaning roller to squeeze out the water stains, but also guide the squeezed water stains to the outside to prevent them from flowing back into the bowl or packaging bowl and affecting the quality of the tofu inside. In addition, the lowest point of the scraper can scrape out excess water stains from the bowl rim, making it easier for the cleaning roller to absorb small amounts of water stains and ensure that the bowl rim can be cleaned.

[0058] In this embodiment, the cleaning roller 8 is connected to the film feeding roller 3 in the film pulling mechanism by belt drive, which can achieve synchronous rotation of the cleaning roller 8.

[0059] The above description is a detailed description of the preferred embodiments of the present utility model. However, the embodiments are not intended to limit the scope of the patent application of the present utility model. All equivalent changes or modifications made under the technical spirit of the present utility model should fall within the patent scope covered by the present utility model.

Claims

1. A high-temperature packaging device for bowl-shaped tofu pudding, characterized in that: include, The support frame has an internal membrane stretching mechanism. The conveyor track is fixed inside the support frame and located below the film stretching mechanism; The conveyor trough is set on the conveyor track to place the packaging bowls and convey them to the bottom of the film stretching mechanism for sealing; The lifting mechanism, through the support plate installed at the top of the support frame, pulls the packaging film downwards to contact the mouth of the packaging bowl, thereby achieving heat sealing. A cleaning mechanism is installed on the side of the support frame to clean the openings of the packaging bowls that enter the support frame.

2. The high-temperature packaging device for bowl-shaped tofu pudding according to claim 1, characterized in that: The film-pulling mechanism includes a film-feeding roller, a film-receiving roller, a guide roller, and a drive motor. The film-feeding roller and the film-receiving roller are respectively arranged on the top two sides of the support frame, and the guide roller is arranged on the middle two sides of the support frame.

3. The high-temperature packaging device for bowl-shaped tofu pudding according to claim 2, characterized in that: The conveying track consists of opposing support troughs on both sides below the guide roller. The conveying troughs are engaged between the support troughs to maintain linear movement. The conveying troughs have slots for placing packaging bowls and slits for cutting the packaging film.

4. The high-temperature packaging device for bowl-shaped tofu pudding according to claim 3, characterized in that: The lifting mechanism includes a lifting cylinder, which is fixed to the bottom of the support plate and keeps the telescopic end facing downwards; The lifting plate is fixed to the telescopic end of the lifting cylinder; The pressure plate is elastically installed below the lifting plate via guide columns and elastic elements; The sealing block is fixed to the pressure plate and corresponds to the position of the packaging bowl being conveyed on the conveyor track; A sealing strip is installed at the bottom of the sealing block and corresponds to the opening of the packaging bowl. A heating medium flows inside the sealing strip. The cutter is installed on the outside of the sealing strip and corresponds to the cut on the conveyor trough.

5. The high-temperature packaging device for bowl-shaped tofu pudding according to claim 2, characterized in that: The cleaning mechanism includes a cleaning roller and a scraper. The cleaning roller is rotatably mounted on the outer side of the support frame and keeps its bottom in contact with the mouth of the packaging bowl being conveyed on the conveying track. A sponge layer is sleeved on the outside of the cleaning roller. The scraper is inclinedly set at the outer end of the cleaning roller and keeps its top in contact with the sponge layer on the outside of the cleaning roller.

6. The high-temperature packaging device for bowl-shaped tofu pudding according to claim 5, characterized in that: The cleaning roller is connected to the film feeding roller in the film pulling mechanism by belt drive.