High-speed sealing tea packaging machine

By using a threaded rod to drive the heating block to rise and fall, and a servo motor gear transmission system, the problems of uneven sealing and heat accumulation are solved, achieving precise sealing and stable equipment operation, thus improving sealing quality and safety.

CN224576944UActive Publication Date: 2026-07-31FUJIAN MINDONG BLACK TEA TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FUJIAN MINDONG BLACK TEA TECHNOLOGY CO LTD
Filing Date
2025-08-14
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

Existing sealing mechanisms suffer from uneven pressure application, resulting in uneven sealing lines, poor sealing performance, and heat accumulation during heating, which affects equipment lifespan and sealing quality.

Method used

A threaded rod drives the moving frame to raise and lower the heating block, which is combined with a servo motor-driven gear transmission system to ensure synchronous transmission of the conveyor belt and the high-temperature belt. Fans and exhaust fans are set up for heat dissipation, and the sealing gap is adjusted and synchronous transmission is achieved.

Benefits of technology

It enables precise sealing of packaging bags of different thicknesses, improves equipment versatility and sealing quality, avoids packaging bag deformation and equipment damage, and enhances operational safety and convenience.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a rapid sealing tea packaging machine, including a frame and a conveyor belt. A fixed block is fixedly installed on one side surface of the frame, and a support is provided below the fixed block. A movable frame is slidably connected to one side surface of the frame. A threaded rod is rotatably connected inside the fixed block, and the outer periphery of the threaded rod is threadedly connected to the movable frame. Y-shaped connecting plates are fixedly connected to the lower sides of both sides of the movable frame. A heating block is fixedly connected to the lower end of each of the two Y-shaped connecting plates. Two dampers are fixedly connected to the top of each of the two heating blocks. A return spring is sleeved on the outer periphery of each of the four dampers. The rapid sealing tea packaging machine of this utility model enables the equipment to adapt to sealing tea packaging bags of different thicknesses, greatly improving the versatility and flexibility of the equipment.
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Description

Technical Field

[0001] This utility model relates to the field of packaging sealing technology, specifically a rapid sealing tea packaging machine. Background Technology

[0002] Tea is beloved by consumers for its unique aroma and taste, but it readily absorbs moisture and odors from the air. Furthermore, its active ingredients are easily oxidized under light and oxygen, leading to a decline in quality. Therefore, proper airtight packaging is key to maintaining tea freshness and extending its shelf life.

[0003] Current sealing mechanisms often exhibit high pressure at both ends and low pressure in the middle when applying pressure, resulting in uneven sealing lines and poor sealing performance. Furthermore, the heating block continuously generates a large amount of heat during the sealing process. If heat dissipation is not timely, it not only affects the equipment's lifespan but may also cause the packaging film to overheat and deform, affecting the sealing quality. Therefore, we have proposed a high-speed sealing tea packaging machine. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0005] This utility model relates to a rapid sealing tea packaging machine, comprising a frame and a conveyor belt. A fixed block is fixedly installed on one side surface of the frame, and a support is provided below the fixed block. A movable frame is slidably connected to one side surface of the frame. A threaded rod is rotatably connected inside the fixed block, and the outer periphery of the threaded rod is threadedly connected to the movable frame. Y-shaped connecting plates are fixedly connected to the lower sides of both sides of the movable frame. A heating block is fixedly connected to the lower end of each of the two Y-shaped connecting plates. Two dampers are fixedly connected to the top of each of the two heating blocks. A return spring is sleeved on the outer periphery of each of the four dampers.

[0006] As a preferred embodiment of this utility model, a worm gear is fixedly connected to the lower end of the threaded rod, a worm is drivenly connected to the outer periphery of the worm gear, and a rotating wheel is fixedly connected to one end of the worm through the frame.

[0007] As a preferred technical solution of this utility model, heating blocks are fixedly installed on both sides of the top of the bracket, and through slots are opened on both sides of the surface of the frame. An exhaust fan and a blower fan are fixedly installed in the two through slots respectively.

[0008] As a preferred embodiment of this utility model, a servo motor is fixedly installed inside one side of the frame, and a large gear is driven to the output end of the servo motor. A small gear is meshed with the upper outer periphery of the large gear. A drive wheel one is fixedly connected through the frame on one side of the large gear, and a drive wheel two is fixedly connected through the frame on one side of the small gear.

[0009] As a preferred technical solution of this utility model, the outer peripheries of the first driving wheel and the second driving wheel are both connected to the first driven wheel and the second driven wheel via a high-temperature belt drive, and the outer ends of the first driving wheel and the second driving wheel are both fixedly connected to an extension cylinder.

[0010] As a preferred embodiment of this utility model, the outer peripheries of the two extension cylinders are connected to auxiliary wheels via a conveyor belt, and the auxiliary wheels are rotatably connected to one side of the frame. A protective plate is fixedly installed on the upper side of one side of the frame.

[0011] As a preferred technical solution of this utility model, one side of the outer circumference of the large gear is connected to the drive gear through the meshing of the auxiliary gear, one end of the conveyor belt is internally connected to the drive roller, and one side of the drive gear passes through the frame and is fixedly connected to the drive roller.

[0012] The beneficial effects of this utility model are:

[0013] 1. This type of rapid sealing tea packaging machine uses a manually operated rocker wheel to drive a worm gear and worm wheel, which in turn drives a threaded rod to rotate, allowing the threaded movable frame to move vertically along the machine frame. The movable frame, via a Y-shaped connecting plate, raises and lowers the heating block, enabling precise and convenient adjustment of the gap between the two high-temperature belts. This allows the equipment to adapt to sealing tea packaging bags of varying thicknesses, greatly improving its versatility and flexibility.

[0014] 2. This type of high-speed sealing tea packaging machine uses a large gear to drive an auxiliary gear, which in turn drives the active gear connected to the drive roller to rotate, ensuring that the conveyor belt's conveying speed matches the transmission speed of the high-temperature belt. Simultaneously, the extension cylinders at the outer ends of active roller one and active roller two drive the auxiliary roller via the conveyor belt, further ensuring that the top and bottom (conveyed by the conveyor belt) of the packaging bag entering the gap of the high-temperature belt have the same linear speed. This synchronization effectively avoids problems such as the packaging bag being pulled, deformed, or unevenly sealed due to speed differences, guaranteeing sealing quality and conveying stability.

[0015] 3. This type of rapid sealing tea packaging machine incorporates both a blower fan and an exhaust fan. The blower fan provides forced cooling to the freshly heat-sealed packaging bags, preventing deformation or compromised sealing strength due to localized overheating. It also avoids heat buildup that could damage internal components (such as the conveyor belt), extending the machine's lifespan. The exhaust fan effectively removes smoke generated during the sealing process, maintaining a clean work area and preventing smoke from obstructing the operator's view. This facilitates real-time observation and monitoring of the sealing effect, enhancing operational safety and convenience. This invention features a simple and reasonable structure, novel design, and easy and convenient operation, making it highly practical. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a 3D view of the utility model of a fast-sealing tea packaging machine;

[0018] Figure 2 This is a schematic diagram of the extension tube structure of the quick-sealing tea packaging machine of this utility model;

[0019] Figure 3 This is a schematic diagram of the small gear structure of the quick-sealing tea packaging machine of this utility model;

[0020] Figure 4 This is a schematic diagram of the heating block two structure of the quick-sealing tea packaging machine of this utility model;

[0021] Figure 5 This is a schematic diagram of the Y-type connecting plate structure of the quick-sealing tea packaging machine of this utility model;

[0022] Figure 6 This is a schematic diagram of the conveyor belt structure of the quick-sealing tea packaging machine of this utility model.

[0023] In the diagram: 1. Frame; 2. Conveyor belt; 3. Fixed block; 4. Support; 5. Moving frame; 6. Threaded rod; 7. Y-shaped connecting plate; 8. Heating block one; 9. Damper; 10. Return spring; 11. Worm gear; 12. Worm; 13. Rotary wheel; 14. Heating block two; 15. Through slot; 16. Exhaust fan; 17. Blowing fan; 18. Servo motor; 19. Large gear; 20. Small gear; 21. Drive wheel one; 22. Drive wheel two; 23. High-temperature belt; 24. Passive wheel one; 25. Passive wheel two; 26. Extension cylinder; 27. Conveyor belt; 28. Auxiliary wheel; 29. ​​Protective plate; 30. Auxiliary gear; 31. Drive gear. Detailed Implementation

[0024] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0025] Example: Figures 1-6As shown, the present invention relates to a rapid sealing tea packaging machine, comprising a frame 1 and a conveyor belt 2. A fixing block 3 is fixedly installed on one side surface of the frame 1, and a support 4 is provided below the fixing block 3. A movable frame 5 is slidably connected to one side surface of the frame 1. A threaded rod 6 is rotatably connected inside the fixing block 3, and the outer periphery of the threaded rod 6 is threadedly connected to the movable frame 5. Y-shaped connecting plates 7 are fixedly connected to the lower sides of both sides of the movable frame 5. Heating blocks 8 are fixedly connected to the lower ends of the two Y-shaped connecting plates 7. Two dampers 9 are fixedly connected to the top of the two heating blocks 8. Return springs 10 are sleeved on the outer periphery of the four dampers 9.

[0026] The lower end of the threaded rod 6 is fixedly connected to a worm gear 11, and the outer periphery of the worm gear 11 is connected to a worm 12. One end of the worm 12 passes through the frame 1 and is fixedly connected to a rotating wheel 13. It is threadedly connected to the movable frame 5 through the threaded rod 6. Therefore, the movable frame 5 moves vertically along the surface of the frame 1 under the action of the threaded transmission, adjusting the gap between the two high-temperature belts 23 to accommodate packaging bags of different thicknesses.

[0027] Heating blocks 14 are fixedly installed on both sides of the top of the bracket 4. Through slots 15 are opened on both sides of the surface of the frame 1. Exhaust fans 16 and blowers 17 are fixedly installed in the two through slots 15 respectively. The exhaust fans 16 will promptly remove the smoke generated during the processing to avoid the smoke from interfering with the user's vision and make it easier to observe the sealing of the tea packaging bags. The blowers 17 will blow air to cool the tea packaging bags in the conveyor belts 27 on both sides to prevent local overheating from affecting the life of the equipment and the packaging quality.

[0028] A servo motor 18 is fixedly installed inside one side of the frame 1. The output end of the servo motor 18 is connected to a large gear 19. A small gear 20 is meshed with the upper outer periphery of the large gear 19. One side of the large gear 19 passes through the frame 1 and is fixedly connected to a drive wheel 21. One side of the small gear 20 passes through the frame 1 and is fixedly connected to a drive wheel 22. The drive wheel 21 extends coaxially from the large gear 19 and the drive wheel 22 extends coaxially from the small gear 20. The two drive wheels drive the corresponding passive wheels 24 and 25 to rotate through a high-temperature belt 23, forming two independent but synchronously operating transmission circuits.

[0029] Among them, the outer peripheries of the first driving wheel 21 and the second driving wheel 22 are connected to the first driven wheel 24 and the second driven wheel 25 via the high temperature belt 23. The outer ends of the first driving wheel 21 and the second driving wheel 22 are fixedly connected to the extension tube 26. The extension tube 26 cooperates with the auxiliary wheel 28 to make the transmission belt 27 rotate.

[0030] The outer periphery of each of the two extension cylinders 26 is connected to an auxiliary wheel 28 via a conveyor belt 27. The auxiliary wheel 28 is rotatably connected to one side of the frame 1. A protective plate 29 is fixedly installed on the upper side of one side of the frame 1. The protective plate 29 not only serves as a physical isolation to prevent external factors from interfering with the normal operation of the equipment, but also takes into account the safety of the operators, such as setting up safety facilities like an emergency stop button.

[0031] Among them, the outer side of the large gear 19 is connected to the drive gear 31 through the auxiliary gear 30. One end of the conveyor belt 2 is internally connected to the drive roller, and one side of the drive gear 31 passes through the frame 1 and is fixedly connected to the drive roller. By setting the large gear 19, the high temperature belt 23, the conveyor belt 27, and the conveyor belt 2 have the same conveying speed, preventing the bottom of the tea packaging bag driven by the conveyor belt 2 from having a speed difference with the top of the tea packaging bag in the gap between the two high temperature belts 23, and ensuring stable conveying of the tea packaging bag.

[0032] Working Principle: In use, the tea packaging bag to be sealed is placed on conveyor belt 2, with the sealing area resting on the surface of the high-temperature belt 23 around the driven wheel 24. Conveyor belt 2 is started to transport the tea packaging bag, and simultaneously, servo motor 18 is activated, its output driving large gear 19 to rotate. Large gear 19 simultaneously drives its meshing small gear 20, auxiliary gear 30, and driving gear 31, as well as driving wheel 21, driving wheel 22 (driven by small gear 20), and drive roller connected via the same shaft. These, in turn, drive driven wheels 24 and 25 to rotate via high-temperature belt 23. The extension cylinders 26 at the outer ends of driving wheels 21 and 22 then drive two auxiliary wheels 28 to rotate via conveyor belt 27, thereby moving the tea packaging bag that has entered the gap between the two high-temperature belts 23. The large gear 19 drives the auxiliary gear 30, which in turn drives the active gear 31 connected to the drive roller to rotate, so that the conveying speed of the conveyor belt 2 is consistent with the transmission speed of the high-temperature belt 23. At the same time, through the synchronous drive of the active wheel 1 21, the active wheel 22, and the drive roller, the high-temperature belt 23, the conveyor belt 27, and the conveyor belt 2 have the same conveying speed, preventing the bottom of the tea packaging bag carried by the conveyor belt 2 from being at a speed difference with the top of the tea packaging bag in the gap between the two high-temperature belts 23, thus ensuring stable conveying of the tea packaging bag. When the tea packaging bag in the gap between the two high-temperature belts 23 moves between the heating block 1 8 and the heating block 2 14, the electric heating element is energized and heats up, performing heat-pressing and sealing on the packaging bag. The sealing area of ​​the tea packaging bag is heated and fused together, achieving the purpose of sealing. At the same time, the sealed tea packaging bag continues to be conveyed as the conveyor belt 2 continues to convey. When sealing packaging bags of different thicknesses, the rocking wheel 13 is manually turned, and the wheel 13 drives the worm gear 12 to rotate. The worm gear 12 meshes with the worm wheel 11, causing the threaded rod 6 to rotate. The threaded rod 6 can be threadedly connected to the moving frame 5. The moving frame 5 is limited by the machine frame 1 and can only move linearly. Therefore, under the action of the threaded transmission, the moving frame 5 moves vertically downwards along the surface of the machine frame 1. The moving frame 5 drives the two heating blocks 8 to descend synchronously via the Y-shaped connecting plates 7 on both sides. This allows for adjustment of the gap between the two high-temperature belts 23. Simultaneously, the exhaust fan 16 on one side of the two high-temperature belts 23 promptly removes the smoke generated during processing, preventing smoke from interfering with the user's vision and facilitating observation of the sealing condition of the tea packaging bags. The blower fan 17 cools the tea packaging bags within the conveyor belts 27 on both sides.

[0033] Finally, it should be noted that in the description of this utility model, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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 can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fast sealing tea packaging machine comprising a frame (1) and a conveyor belt (2), characterized in that, A fixing block (3) is fixedly installed on one side surface of the frame (1), and a bracket (4) is provided below the fixing block (3). A movable frame (5) is slidably connected to one side surface of the frame (1). A threaded rod (6) is rotatably connected inside the fixing block (3), and the outer periphery of the threaded rod (6) is threadedly connected to the movable frame (5). Y-shaped connecting plates (7) are fixedly connected to the lower sides of both sides of the movable frame (5). A heating block (8) is fixedly connected to the lower end of each of the two Y-shaped connecting plates (7). Two dampers (9) are fixedly connected to the top of each of the two heating blocks (8). A return spring (10) is sleeved on the outer periphery of each of the four dampers (9).

2. The fast-seal tea packer of claim 1, wherein, The lower end of the threaded rod (6) is fixedly connected to a worm wheel (11), and the outer periphery of the worm wheel (11) is connected to a worm (12). One end of the worm (12) passes through the frame (1) and is fixedly connected to a rotating wheel (13).

3. The fast-seal tea packer of claim 1, wherein, Heating blocks (14) are fixedly installed on both sides of the top of the bracket (4). Through slots (15) are opened on both sides of the surface of the frame (1). An exhaust fan (16) and a blower fan (17) are fixedly installed inside the two through slots (15).

4. The fast-seal tea packer of claim 1, wherein, A servo motor (18) is fixedly installed inside one side of the frame (1). The output end of the servo motor (18) is connected to a large gear (19). A small gear (20) is meshed with the upper outer periphery of the large gear (19). One side of the large gear (19) passes through the frame (1) and is fixedly connected to a drive wheel (21). One side of the small gear (20) passes through the frame (1) and is fixedly connected to a drive wheel (22).

5. The fast-seal tea packer of claim 4, wherein, The outer periphery of the first driving wheel (21) and the second driving wheel (22) are connected to the first passive wheel (24) and the second passive wheel (25) by a high-temperature belt (23). The outer ends of the first driving wheel (21) and the second driving wheel (22) are fixedly connected to an extension tube (26).

6. The fast-seal tea packer of claim 5, wherein, The outer periphery of both extension cylinders (26) is connected to auxiliary wheels (28) via a transmission belt (27), and the auxiliary wheels (28) are rotatably connected to one side of the frame (1). A protective plate (29) is fixedly installed on the upper side of one side of the frame (1).

7. The fast-seal tea packer of claim 4, wherein, One side of the outer circumference of the large gear (19) is connected to the drive gear (31) by an auxiliary gear (30). One end of the conveyor belt (2) is internally connected to a drive roller, and one side of the drive gear (31) passes through the frame (1) and is fixedly connected to the drive roller.