Tank tea packaging device with weighing function
By adopting a top-adsorption weighing device in the small-can tea packaging device, the problem of traditional weighing platforms occupying space is solved, achieving seamless feeding and accurate weighing, and improving the smoothness and accuracy of the filling process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHITAIYIRAN AGRI PROD CO LTD
- Filing Date
- 2025-05-08
- Publication Date
- 2026-05-19
AI Technical Summary
The weighing platform of traditional small-can tea packaging equipment occupies the space under the conveyor belt, causing layout conflicts and problems with material feeding.
The top-adsorption weighing device uses a lifting frame and adsorption components to adsorb the receiving tank to the discharge port of the feeding mechanism. Combined with a solenoid valve to control the discharge rate, it achieves accurate weighing and seamless feeding.
It completely solves the layout conflict of traditional weighing devices occupying space, optimizes the smoothness of the loading process, and ensures accurate material weighing and control.
Smart Images

Figure CN224257004U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of weighing technology for small-canned tea, and specifically relates to a small-canned tea packaging device with weighing function. Background Technology
[0002] In the automated production of cylindrical packaging containers such as small tea cans and coffee capsules, weight detection is a crucial step in ensuring product quality. Traditional weighing devices generally use bottom-supported detection, where the can is supported by a weighing platform under the conveyor belt, and the weight signal is obtained by a pressure sensor. However, the weighing platform of traditional equipment occupies the space under the conveyor belt, creating a layout conflict with the conveyor belt below, and it is also difficult to feed materials. Utility Model Content
[0003] This utility model addresses the problems of existing technologies by providing a small-can tea packaging device with a weighing function. The specific technical solution is as follows:
[0004] A small-can tea packaging device with weighing function includes a conveying mechanism and a filling mechanism. Several receiving cans are evenly spaced on the conveying mechanism, and the filling mechanism is positioned along the conveying path of the conveying mechanism and fills the receiving cans with material. It also includes a weighing and adsorption mechanism, which is located between the conveying mechanism and the filling mechanism, and includes:
[0005] The lifting frame is movably installed between the injection mechanism and the conveying mechanism, and is driven to move up and down;
[0006] The weighing component, installed at the bottom of the lifting frame, is used to monitor the weight of the material in the receiving tank in real time;
[0007] The adsorption component is installed at the bottom output end of the weighing component to adsorb the receiving tank and move with the lifting frame to place the receiving tank under the discharge port of the injection mechanism.
[0008] The discharge port of the feeding mechanism is equipped with an adjustable solenoid valve. The solenoid valve is communicatively connected to the weighing component and adjusts the discharge rate or stops the discharge according to the weight signal monitored by the weighing component.
[0009] As a further technical solution of this utility model, the weighing and adsorption mechanism also includes a driving component, which includes an installation component fixed to the outside of the injection mechanism and a hydraulic cylinder connecting the installation component and the lifting frame, for driving the lifting frame to rise and fall.
[0010] As a further technical solution of this utility model, the adsorption component is an electromagnet or a negative pressure suction head, which is adapted to a receiving container made of magnetically adsorbable metal or non-metal materials.
[0011] As a further technical solution of this utility model, when the adsorption component is an electromagnet, the weighing component is provided with an electromagnetic shielding cover.
[0012] As a further technical solution of this utility model, the weighing component and the adsorption component are each provided in multiple sets and are evenly arranged around the circumference of the receiving tank.
[0013] As a further technical solution of this utility model, the solenoid valve adjusts the opening degree in stages according to the monitoring signal of the weighing component. When the weight of the material in the receiving tank reaches %-% of the preset threshold, the opening degree of the discharge port is reduced to achieve precise quantity control.
[0014] The beneficial effects of this utility model are as follows:
[0015] (1) In this application, by setting a weighing adsorption mechanism between the conveying mechanism and the injection mechanism, the traditional “bottom support weighing” mode is broken through. The bottom support is replaced by top adsorption weighing, which completely releases the space below the conveying mechanism and completely solves the layout conflict problem caused by the weighing platform occupying the space below the traditional equipment. This allows the conveying structure or other functional modules to be freely designed below the conveyor belt.
[0016] (2) In this application, the receiving tank is directly lifted and sleeved to the discharge port after being adsorbed by the upper adsorption component. The feeding path is vertically aligned, eliminating the need for the complex docking between the tank and the weighing platform in traditional equipment. This avoids feeding jamming or positioning deviation caused by bottom support, and significantly optimizes the smoothness of the loading process. Attached Figure Description
[0017] Figure 1 A schematic diagram of the overall structure of a small tea can packaging device with weighing function is shown.
[0018] Figure 2 This diagram illustrates the structural design of a small-can tea packaging device with weighing function during the filling and weighing process.
[0019] Figure 3 A schematic diagram of the weighing and adsorption mechanism is shown.
[0020] Legend:
[0021] 100. Conveying mechanism; 110. Receiving tank; 200. Injection mechanism; 210. Discharge port; 220. Solenoid valve; 300. Weighing and adsorption mechanism; 310. Lifting frame; 320. Weighing assembly; 330. Adsorption assembly; 340. Mounting component; 350. Hydraulic cylinder. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.
[0023] Figure 1 A schematic diagram of the overall structure of a small tea can packaging device with weighing function is shown. Figure 2 This diagram illustrates the structural design of a small-can tea packaging device with weighing function during the filling and weighing process. Figure 1 and Figure 2 The small tea packaging device with weighing function includes a conveying mechanism 100 and a filling mechanism 200. The conveying mechanism 100 has several receiving tanks 110 arranged at equal intervals for receiving materials. The receiving tanks 110 are also arranged at equal intervals along the conveying path of the conveying mechanism 100. The filling mechanism 200 is arranged on the conveying path of the conveying mechanism 100 and is used to fill the receiving tanks 110 on the conveying mechanism 100 with a certain amount of tea leaves stored in the filling mechanism 200. The above are all prior art and are not the technical solutions protected by this application.
[0024] Figure 3 A schematic diagram of the weighing and adsorption mechanism 300 is shown. Figure 3 In this structure, the weighing and adsorption mechanism 300 is positioned between the conveying mechanism 100 and the injection mechanism 200, specifically above the conveying mechanism 100 and below the injection mechanism 200. The weighing and adsorption mechanism 300 includes a lifting frame 310, a weighing component 320, an adsorption component 330, a mounting component 340, and a hydraulic cylinder 350. The lifting frame 310 is movably positioned between the injection mechanism 200 and the conveying mechanism 100 and can be lifted and lowered under drive. The weighing component 320 is installed at the bottom of the lifting frame 310 and adsorbs... The auxiliary component 330 is installed at the bottom output end of the weighing component 320. In specific use, the lifting frame 310 is driven to descend and the adsorption component 330 is brought into contact with the receiving tank 110. The adsorption component 330 is used to adsorb and connect with the receiving tank 110. After the connection is completed, the lifting frame 310 is driven to rise, thereby driving the receiving tank 110 to rise and be fitted onto the bottom of the discharge port 210. The weighing component 320 is used to realize the real-time change of the weight of the tea leaves in the receiving tank 110, thereby realizing the weighing monitoring during the filling process.
[0025] Both the weighing component 320 and the adsorption component 330 have several sets, which are evenly distributed around the receiving tank 110; that is, the weighing component 320 and the adsorption component 330 constitute a connection point for the receiving tank 110. By setting multiple sets and distributing them around the receiving tank 110, the stability of the receiving tank 110 during the lifting process can be ensured.
[0026] In one embodiment, the adsorption component 330 is an electromagnet, the receiving tank 110 is made of magnetically attractable metal, and the weighing component 320 is covered with an electromagnetic shield. For some magnetically attractable metal tanks, such as aluminum alloy tanks, when the adsorption component 330 descends and adheres to the conveying mechanism 100, the receiving tank 110 can be magnetically attracted by energizing the adsorption component 330. After the material is loaded, the receiving tank 110 can be released by de-energizing the adsorption component 330 as it descends again.
[0027] In another embodiment, the adsorption component 330 is a negative pressure suction head; the adsorption of the receiving tank 110 is achieved through an external negative pressure pipeline; that is, when the adsorption component 330 is in contact with the receiving tank 110, the negative pressure pipeline is connected to achieve the adsorption of the receiving tank 110. After the material is loaded, the adsorption component 330 descends again to restore normal pressure and releases the receiving tank 110.
[0028] The feeding mechanism 200 has a discharge port 210 at its bottom, and a solenoid valve 220 at the outlet of the discharge port 210. The solenoid valve 220 is communicatively connected to the weighing component 320. The solenoid valve 220 is used to control the opening and closing degree of the outlet 210 to control the discharge rate. When the weighing component 320 detects that the weight of the tea in the receiving tank 110 meets the requirements, the weighing component 320 sends an electrical signal. The solenoid valve 220 receives the electrical signal and blocks the outlet 210 to stop the discharge. Furthermore, the solenoid valve 220 can control the opening and closing degree of the outlet 210 to change as tea is added to the receiving tank 110. For example, if 500g of tea needs to be added to the receiving tank 110, when the weighing component 320 detects that the weight of the tea in the receiving tank 110 has reached 450g, it can send an electrical signal to the solenoid valve 220 to reduce the opening and closing degree of the outlet 210 in advance to ensure the accuracy of the quality.
[0029] See also Figure 3 The mounting component 340 is installed outside the discharge port 210, and the hydraulic cylinder 350 is connected between the mounting component 340 and the lifting frame 310 to drive the lifting frame 310 to rise and fall; the height of the lifting frame 310 can be controlled by the piston movement at the output end of the hydraulic cylinder 350, and the lifting frame 310 can be driven to rise and fall on the vertical plane.
[0030] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.
Claims
1. A small-can tea packaging device with weighing function, comprising a conveying mechanism (100) and a filling mechanism (200), wherein a plurality of receiving cans (110) are arranged at equal intervals on the conveying mechanism (100), and the filling mechanism (200) is arranged on the conveying path of the conveying mechanism (100) and fills the receiving cans (110) with material; characterized in that, It also includes a weighing and adsorption mechanism (300), which is disposed between the conveying mechanism (100) and the injection mechanism (200), and includes: The lifting frame (310) is movably disposed between the injection mechanism (200) and the conveying mechanism (100) and is driven to perform lifting movements; Weighing component (320), installed at the bottom of lifting frame (310), is used to monitor the weight of material in receiving tank (110) in real time; The adsorption component (330) is installed at the bottom output end of the weighing component (320) to adsorb the receiving tank (110) and move with the lifting frame (310) to place the receiving tank (110) under the discharge port (210) of the injection mechanism (200); The discharge port (210) of the feeding mechanism (200) is provided with an adjustable solenoid valve (220). The solenoid valve (220) is communicatively connected to the weighing component (320) and adjusts the discharge rate or stops the discharge according to the weight signal monitored by the weighing component (320).
2. The small tea packaging device with weighing function according to claim 1, characterized in that: The weighing and adsorption mechanism (300) further includes a drive assembly, which includes a mounting component (340) fixed to the outside of the injection mechanism (200) and a hydraulic cylinder (350) connecting the mounting component (340) and the lifting frame (310) for driving the lifting frame (310) to rise and fall.
3. The small tea packaging device with weighing function according to claim 2, characterized in that: The adsorption component (330) is an electromagnet or a negative pressure suction head, which is adapted to a magnetically adsorbable metal or non-metal material receiving tank (110).
4. The small tea packaging device with weighing function according to claim 3, characterized in that: When the adsorption component (330) is an electromagnet, the weighing component (320) is covered with an electromagnetic shield.
5. The small tea packaging device with weighing function according to claim 1, characterized in that: The weighing component (320) and the adsorption component (330) are both provided in multiple sets and are evenly arranged around the receiving tank (110).
6. The small tea packaging device with weighing function according to claim 5, characterized in that: The solenoid valve (220) adjusts its opening degree in stages according to the monitoring signal of the weighing component (320). When the weight of the material in the receiving tank (110) reaches 90%-95% of the preset threshold, the opening degree of the discharge port (210) is reduced to achieve precise quantity control.