A moisture-proof and oxidation-resistant composite packaging structure for traditional Chinese medicine tea

Abstract

The utility model discloses a kind of moisture-proof antioxidant composite packaging structure for traditional Chinese medicine tea, it includes main body frame, sealing module and vacuum inflation device.Sealing module is sealed by heat-sealing assembly to realize the sealing of packaging bag, and cooling assembly is equipped to shorten packaging cycle;Vacuum inflation device replaces oxygen in packaging bag using inert gas, improves moisture-proof antioxidant performance.Transmission chain and fixed clamp ensure that packaging material is conveyed stably, multi-layer filter screen and hydrophobic coating prolong equipment life.The structure of the application is compact, reasonable in design, significantly improves packaging efficiency and reliability, and is suitable for large-scale industrial production.

Description

Technical Field

[0001] This utility model relates to the field of packaging materials and packaging structure technology, and in particular to a moisture-proof and antioxidant composite packaging structure for traditional Chinese medicine tea preparations. Background Technology

[0002] Currently, in the packaging of traditional Chinese medicine tea preparations, granular materials are typically packaged using the DXDK900A packaging machine. The process includes feeding, longitudinal sealing, transverse sealing, longitudinal cutting, and transverse cutting. After being unwound by the unwinding mechanism, the packaging material is cut into two parts by the slitting mechanism and then guided into the sealing area by guide rollers. Finally, the finished small bags are expanded by the gripping device and fed into the DZLJ450 small bag sorting machine. However, in actual operation, due to the high requirements for moisture resistance and oxidation resistance of traditional Chinese medicine tea preparations, existing equipment is easily affected by environmental humidity and oxygen during the packaging process, which may lead to a decline in product quality. Furthermore, while the DZLJ450 small bag sorting machine can complete the picking, expansion, and sequential feeding of small bags, the high-precision vacuum picking and shifting process requires a high degree of surface condition of the packaging material, which may affect efficiency. In addition, although the LW300 automatic weighing system can achieve online weighing and sorting, its overall linkage needs further optimization to improve production continuity. Utility Model Content

[0003] The purpose of this utility model is to provide a moisture-proof and antioxidant composite packaging structure for traditional Chinese medicine tea preparations, which solves the problems mentioned in the background art.

[0004] This utility model is implemented as follows: a moisture-proof and antioxidant composite packaging structure for traditional Chinese medicine tea preparations. The packaging machine mainly consists of: a main frame, a sealing module set on the main frame, and a vacuum inflation device installed on one side of the main frame. The main frame is the core structure of the equipment. The sealing module and the vacuum inflation device are both fixed on the main frame and achieve coordinated operation through a linkage mechanism.

[0005] A further technical solution of this utility model is as follows: The sealing module includes a pair of pressing plates and a heat-sealing assembly disposed between the pressing plates. The pressing plates are connected to the main frame via a slide rail, and the slide rail is embedded with balls to reduce frictional resistance, allowing the pressing plates to move smoothly in the vertical direction. The heat-sealing assembly consists of a heating wire and a heat-conducting sheet. The heating wire is fixed inside the heat-conducting sheet and connected to a power source via a wire. The surface of the heat-conducting sheet has a uniformly distributed microporous structure for venting excess gas during the heat-sealing process.

[0006] A further technical solution of this utility model is as follows: The vacuum filling device includes a vacuum pump, a gas storage tank, and a gas distribution pipeline. The vacuum pump is fixed to one side of the main frame by bolts, and the gas storage tank is connected to the vacuum pump by clamps. One end of the gas distribution pipeline is connected to the gas storage tank, and the other end extends to the vicinity of the heat-sealing component of the sealing module. A solenoid valve is installed on the gas distribution pipeline. The solenoid valve is connected to the control panel via a signal line. The control panel adjusts the opening and closing state of the solenoid valve according to a set program, thereby achieving precise gas injection.

[0007] A further technical solution of this utility model is as follows: A guide groove is provided on the main frame, and a transmission chain is installed in the guide groove. The transmission chain meshes with the output shaft of a motor via gears. The motor is fixed to the bottom of the main frame and secured with bolts. Several fixing clamps are provided on the transmission chain. These clamps are used to hold the packaging material and drive it to move along the guide groove. Photoelectric sensors are provided on both sides of the guide groove. The photoelectric sensors are connected to the control panel via signal lines to detect the position of the packaging material and provide feedback signals.

[0008] A further technical solution of this utility model is: the sealing module further includes a set of cooling components, which consist of a cooling fan and a heat sink. The cooling fan is fixed to the outside of the pressing plate by a bracket, and the heat sink is embedded inside the pressing plate and in contact with the heat-conducting plate. The cooling fan is connected to the power supply through a wire. When the heat sealing is completed, the cooling fan starts to accelerate the cooling process of the heat-conducting plate, thereby shortening the packaging cycle.

[0009] A further technical solution of this utility model is as follows: the air inlet of the vacuum pump is provided with a multi-layer filter screen, which is fixed to the outer shell of the vacuum pump by clips. The filter screen is made of stainless steel and its surface is coated with a hydrophobic coating to prevent moisture and impurities from entering the vacuum pump. The exhaust port of the vacuum pump is connected to a gas storage tank through a hose, and the two ends of the hose are connected by quick-release connectors for easy maintenance and replacement.

[0010] A further technical solution of this utility model is as follows: the gas storage tank is filled with inert gas, which is injected into the heat-sealing component area of ​​the sealing module through a gas distribution pipeline. During the heat-sealing process, the inert gas fills the inside of the packaging bag, displacing oxygen from the air and thus reducing the oxygen content inside the packaging bag. A pressure gauge is installed on the outer wall of the gas storage tank, and the pressure gauge is fixed to the top of the gas storage tank by a threaded connection for real-time monitoring of the gas pressure inside the tank.

[0011] A further technical solution of this utility model is as follows: the fixing clamp includes a clamping arm and an adjusting screw. The clamping arm is connected to a transmission chain via a hinge. The adjusting screw passes through the clamping arm and is threaded into it. By rotating the adjusting screw, the opening and closing degree of the clamping arm can be adjusted to accommodate packaging materials of different thicknesses. A rubber pad is provided on the inner side of the clamping arm, and the surface of the rubber pad has anti-slip textures to enhance clamping stability and prevent damage to the packaging material.

[0012] A further technical solution of this utility model is as follows: a protective cover is provided on the top of the main frame, the protective cover is connected to the main frame by a magnetic hinge, and a lighting lamp is provided on the inner side of the protective cover. The lighting lamp is connected to a power source through a wire to provide sufficient lighting conditions during equipment operation. An observation window is provided on the outer side of the protective cover. The observation window is made of transparent acrylic sheet, which facilitates the operator to monitor the operating status of the equipment in real time.

[0013] The beneficial effects of this utility model are as follows: The moisture-proof and antioxidant composite packaging structure for traditional Chinese medicine tea preparations of this utility model is compact and rationally designed. Through the synergistic effect of the sealing module and the vacuum inflation device, the oxygen content inside the packaging bag is effectively reduced during the packaging process. Simultaneously, the injection of inert gas further enhances the moisture-proof and antioxidant properties. The design of the transmission chain and fixing clamps ensures the smooth transport of packaging materials, and the introduction of cooling components significantly shortens the packaging cycle and improves production efficiency. Furthermore, the application of multi-layer filters and hydrophobic coatings extends the service life of the vacuum pump. The overall equipment possesses high reliability and practicality, making it suitable for large-scale industrial production. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a moisture-proof and antioxidant composite packaging structure for traditional Chinese medicine tea preparations.

[0015] The attached figures are labeled as follows:

[0016] 1. Main frame; 2. Sealing module; 3. Vacuum filling device; 4. Drive chain; 9. Gas storage tank; 11. Protective cover. Detailed Implementation

[0017] The present invention provides a moisture-proof and antioxidant composite packaging structure for traditional Chinese medicine tea preparations, the specific implementation of which is as follows: Combined with... Figure 1The core structure of this packaging machine includes a main frame 1, a sealing module 2, a vacuum inflation device 3, a transmission chain 4, and fixing fixtures. The main frame 1 serves as the foundational support structure for the entire machine. It features a rectangular steel frame design and a protective cover 11 on top. The protective cover 11 is connected to the main frame 1 via magnetic hinges for easy opening and closing. An illumination lamp is installed inside the protective cover 11, connected to a power source via wires to provide sufficient lighting during machine operation. An observation window, made of transparent acrylic, is located on the outside of the protective cover 11, allowing operators to monitor the machine's operating status in real time.

[0018] The sealing module 2 is located in the middle of the main frame 1 and mainly includes a pair of pressing plates, a heat sealing assembly, and a cooling assembly. The pressing plates are connected to the main frame 1 via slide rails with embedded ball bearings to reduce frictional resistance, allowing the pressing plates to move smoothly in the vertical direction. The heat sealing assembly is embedded between the pressing plates and consists of a heating wire and a heat-conducting plate. The heating wire is fixed inside the heat-conducting plate and connected to a power source via a wire. The surface of the heat-conducting plate has a uniformly distributed microporous structure for venting excess gas during the heat sealing process. The cooling assembly includes a cooling fan and a heat sink. The cooling fan is fixed to the outside of the pressing plates by a bracket, and the heat sink is embedded inside the pressing plates and in close contact with the heat-conducting plate. After heat sealing is completed, the cooling fan starts to accelerate the cooling process of the heat-conducting plate, thereby shortening the packaging cycle.

[0019] The vacuum filling device 3 is fixed to one side of the main frame 1 and mainly consists of a vacuum pump, a gas storage tank 9, and a gas distribution pipeline. The vacuum pump is bolted to one side of the main frame 1. The vacuum pump's inlet is equipped with a multi-layer filter screen, which is secured to the pump's outer casing with clips. The filter screen is made of stainless steel and coated with a hydrophobic coating to prevent moisture and impurities from entering the vacuum pump. The vacuum pump's exhaust port is connected to the gas storage tank 9 via a flexible hose. The two ends of the hose are connected by quick-release connectors for easy maintenance and replacement. The gas storage tank 9 is filled with inert gas. A pressure gauge is installed on the outer wall of the gas storage tank 9 and is threaded to the top of the tank for real-time monitoring of the gas pressure. One end of the gas distribution pipeline is connected to the gas storage tank 9, and the other end extends to the vicinity of the heat-sealing assembly of the sealing module 2. A solenoid valve is installed on the gas distribution pipeline. The solenoid valve is connected to the control panel via a signal line. The control panel adjusts the opening and closing state of the solenoid valve according to a set program to achieve precise gas injection.

[0020] A drive chain 4 is arranged along a guide groove and connected to fixed clamps. The guide groove is located on both sides of the main frame 1. The drive chain 4 meshes with the motor output shaft via gears. The motor is fixed to the bottom of the main frame 1 and secured with bolts. Several fixed clamps are provided on the drive chain 4. These clamps are used to hold the packaging material and move it along the guide groove. Each fixed clamp includes a clamping arm and an adjusting screw. The clamping arm is connected to the drive chain 4 via a hinge. The adjusting screw passes through the clamping arm and is threaded into it. By rotating the adjusting screw, the opening and closing degree of the clamping arm can be adjusted to accommodate packaging materials of different thicknesses. A rubber pad is provided on the inner side of the clamping arm, and the surface of the rubber pad has anti-slip textures to enhance clamping stability and prevent damage to the packaging material. Photoelectric sensors are provided on both sides of the guide groove. The photoelectric sensors are connected to the control panel via signal lines to detect the position of the packaging material and provide feedback signals.

[0021] During equipment operation, the packaging material is first placed on the fixed clamp. The opening and closing degree of the clamping arm is adjusted by adjusting the screw to ensure that the packaging material is firmly clamped. Subsequently, the transmission chain 4 moves along the guide groove under the drive of the motor, driving the fixed clamp and the packaging material on it into the working area of ​​the sealing module 2. In the sealing module 2, the pressing plate moves downward along the slide rail to clamp the packaging material. At the same time, the heat sealing component starts to work. After the heating wire is energized, it transfers heat to the heat-conducting plate, which heat-seales the packaging bag. During this process, the microporous structure on the surface of the heat-conducting plate discharges excess gas from the packaging bag, ensuring the heat sealing effect. Simultaneously, the vacuum inflation device 3 is activated. The vacuum pump draws air from the packaging bag through the air inlet and injects inert gas into the packaging bag through the gas distribution pipeline, replacing the oxygen in the air and reducing the oxygen content in the packaging bag. The solenoid valve precisely controls the amount of gas injected according to the instructions of the control panel to ensure that the gas environment inside the packaging bag meets the preset standard.

[0022] After heat sealing, the cooling system activates, and the cooling fan blows cool air onto the heat sink. The heat sink makes close contact with the heat-conducting plate, rapidly reducing its temperature and shortening the packaging cycle. Subsequently, the pressing plate moves upward along the slide rail, releasing the heat-sealed packaging bag. The drive chain 4 continues to move the fixing clamp and its packaging material along the guide groove until the entire packaging process is complete. Throughout the operation, photoelectric sensors continuously monitor the position of the packaging material and send signals back to the control panel. The control panel adjusts the speed of the drive chain 4 and the operating status of the vacuum inflation device 3 based on the feedback signals, ensuring the stability and reliability of the equipment.

[0023] Furthermore, the protective cover 11 not only protects the internal structure of the equipment from external dust and foreign objects, but also provides safety protection during equipment operation. The observation window allows operators to monitor the equipment's operating status in real time without opening the protective cover 11, improving operational convenience and safety. The application of multi-layer filters and a hydrophobic coating effectively extends the service life of the vacuum pump. The overall equipment possesses high reliability and practicality, making it suitable for large-scale industrial production.

[0024] The above embodiments describe in detail the specific structure and operating principle of this utility model. Through the close cooperation between various components, efficient packaging of Chinese herbal tea preparations is achieved, while effectively reducing the oxygen content inside the packaging bag and improving moisture-proof and antioxidant performance.

[0025] To enable those skilled in the art to fully understand and implement this utility model, the specific implementation principle of this utility model is further explained below in conjunction with specific application scenarios.

[0026] First, during the initial loading stage of the packaging materials, the operator places the bags of herbal tea granules to be packaged onto the fixed clamp. The opening and closing of the clamping arms is adjusted by rotating the adjusting screw, ensuring the clamping arms can firmly hold packaging materials of varying thicknesses. Rubber pads and anti-slip textures on the inner side of the clamping arms enhance clamping stability while preventing damage to the packaging materials. After clamping, the drive chain 4 moves along the guide groove under the drive of the motor, carrying the fixed clamp and the packaging materials onto it into the working area of ​​the sealing module 2. During this process, photoelectric sensors detect the position of the packaging materials in real time and feed the signal back to the control panel, ensuring the speed of the drive chain 4 is coordinated with subsequent processes.

[0027] Subsequently, the packaging material enters the working area of ​​sealing module 2, and the pressing plate moves smoothly downwards along the slide rail, clamping the packaging material. The ball bearings embedded in the slide rail effectively reduce frictional resistance, thus ensuring the smooth operation of the pressing plate. Simultaneously, the heat-sealing assembly begins operation; the heating wire, after being energized, transfers heat to the heat-conducting sheet, which then heat-seales the packaging bag. The uniformly distributed microporous structure on the surface of the heat-conducting sheet plays a crucial role in the heat-sealing process, expelling excess gas from the packaging bag and ensuring uniformity and sealing of the heat seal. This design not only improves the heat-sealing quality but also provides a good foundation for subsequent vacuum inflation operations.

[0028] While the heat-sealing assembly is operating, the vacuum filling device 3 is activated, and the vacuum pump extracts air from the packaging bag through the air inlet. The multi-layered filter screen and its hydrophobic coating at the vacuum pump inlet effectively prevent the entry of moisture and impurities, extending the service life of the vacuum pump. After air extraction, inert gas from the gas storage tank 9 is injected into the packaging bag through the gas distribution pipeline, displacing oxygen from the air and significantly reducing the oxygen content inside the packaging bag. The solenoid valve on the gas distribution pipeline precisely controls the gas injection volume according to the control panel instructions, ensuring that the gas environment inside the packaging bag meets the preset standards. This process, through the filling of inert gas, achieves moisture-proof and antioxidant protection for the herbal tea, meeting the product's high storage requirements.

[0029] After heat sealing, the cooling assembly activates, with the cooling fan blowing cool air onto the heat sink. The heat sink is in close contact with the heat-conducting plate, rapidly reducing its temperature and shortening the packaging cycle. This cooling assembly design not only improves equipment efficiency but also prevents deformation or damage to packaging materials caused by residual high temperatures. Subsequently, the pressing plate moves upwards along the slide rail, releasing the heat-sealed packaging bag. The drive chain 4 continues to move the fixing clamp and its packaging material along the guide groove until the entire packaging process is complete.

[0030] Throughout operation, the protective cover 11 serves multiple purposes. Its magnetic hinge connection facilitates opening and closing, making equipment maintenance convenient for operators. The lighting installed inside the protective cover 11 provides ample illumination for equipment operation, while the transparent acrylic observation window on the outside allows operators to monitor the equipment's operating status in real time without opening the cover. Furthermore, the enclosed structure of the protective cover 11 effectively isolates it from external dust and foreign objects, while also ensuring the safety of equipment operation.

[0031] In summary, this invention achieves highly efficient packaging of traditional Chinese medicine tea preparations through the close cooperation of its various components. From the clamping and conveying of packaging materials, heat sealing, vacuum inflation to cooling, each step has been precisely designed and optimized to ensure the stability and reliability of the packaging process. In particular, the synergistic effect of inert gas injection and vacuum extraction significantly reduces the oxygen content inside the packaging bag, achieving moisture-proof and anti-oxidation effects. The overall equipment has a compact structure, is easy to operate, and is suitable for large-scale industrial production, possessing high practical value and promising prospects for widespread application.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements 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 moisture-proof and antioxidant composite packaging structure for traditional Chinese medicine tea preparations, characterized in that, The packaging structure mainly consists of a main frame (1), a sealing module (2) set on the main frame (1), and a vacuum inflation device (3) installed on one side of the main frame (1). The sealing module (2) and the vacuum inflation device (3) work together through a linkage mechanism.

2. The moisture-proof and antioxidant composite packaging structure for traditional Chinese medicine tea preparations according to claim 1, characterized in that: The sealing module (2) includes a pair of pressing plates and a heat sealing assembly disposed between the pressing plates. The pressing plates are connected to the main frame (1) via a slide rail. The slide rail is embedded with balls. The heat sealing assembly consists of a heating wire and a heat-conducting sheet. The heating wire is fixed inside the heat-conducting sheet and connected to a power source via a wire. The surface of the heat-conducting sheet is provided with a uniformly distributed microporous structure.

3. The moisture-proof and antioxidant composite packaging structure for traditional Chinese medicine tea preparations according to claim 1, characterized in that: The vacuum filling device (3) includes a vacuum pump, a gas storage tank (9) and a gas distribution pipeline. The vacuum pump is fixed to one side of the main frame (1) by bolts. The gas storage tank (9) is connected to the vacuum pump by clamps. One end of the gas distribution pipeline is connected to the gas storage tank (9), and the other end extends to the vicinity of the heat sealing component of the sealing module (2). A solenoid valve is provided on the gas distribution pipeline.

4. The moisture-proof and antioxidant composite packaging structure for traditional Chinese medicine tea preparations according to claim 1, characterized in that: The main frame (1) is provided with a guide groove, and a transmission chain (4) is installed in the guide groove. The transmission chain (4) meshes with the motor output shaft through gears. The transmission chain (4) is provided with several fixing clamps. The fixing clamps include clamping arms and adjusting screws. The clamping arms are connected to the transmission chain (4) through hinges. The adjusting screws pass through the clamping arms and are threadedly engaged with the clamping arms.

5. The moisture-proof and antioxidant composite packaging structure for traditional Chinese medicine tea preparations according to claim 2, characterized in that: The sealing module (2) also includes a set of cooling components, which consist of a cooling fan and a heat sink. The cooling fan is fixed to the outside of the pressing plate by a bracket, and the heat sink is embedded inside the pressing plate and in contact with the heat-conducting plate.

6. The moisture-proof and antioxidant composite packaging structure for traditional Chinese medicine tea preparations according to claim 3, characterized in that: The vacuum pump has a multi-layer filter screen at its air inlet. The filter screen is fixed to the outer shell of the vacuum pump by a snap fastener. The exhaust port of the vacuum pump is connected to the gas storage tank (9) through a hose. The outer wall of the gas storage tank (9) is equipped with a pressure gauge, which is fixed to the top of the gas storage tank (9) by a threaded connection.

7. The moisture-proof and antioxidant composite packaging structure for traditional Chinese medicine tea preparations according to claim 1, characterized in that: The main frame (1) is provided with a protective cover (11) on the top. The protective cover (11) is connected to the main frame (1) by a magnetic hinge. The inner side of the protective cover (11) is provided with a lighting lamp. The outer side of the protective cover (11) is provided with an observation window, which is made of transparent acrylic sheet.

Images