A mask weighing device
By using the cantilever structure and cylinder-driven material sorting plate design of the mask weighing device, the problems of mask weight recognition accuracy and sorting efficiency are solved, realizing high-precision dynamic weighing and automatic sorting, and reducing the rate of defective products being missed and mixed boxes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOSHAN BOTANG BIOTECHNOLOGY CO LTD
- Filing Date
- 2025-06-25
- Publication Date
- 2026-06-02
AI Technical Summary
Traditional manual sampling inspection of face masks lacks accuracy in weight recognition and has low sorting efficiency, resulting in a high rate of missed defects and an increase in mixed-box sorting.
The mask weighing device, consisting of a U-shaped frame, a weighing conveyor, columns, and weighing sensors, forms a cantilever structure. Combined with an online material distribution component and a cylinder-driven material distribution plate, it achieves high-precision dynamic weighing and automatic sorting.
It achieves high-precision mask weight recognition and rapid sorting, reducing the rate of missed defects and sorting errors, and improving production efficiency.
Smart Images

Figure CN224309030U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of facial mask weighing technology, and in particular to a facial mask weighing device. Background Technology
[0002] Facial masks are beauty and skincare products that provide deep nourishment, cleansing, or therapeutic effects by being applied to the face or other areas of the skin. During the production of facial masks, precise control of the product's net content directly affects quality compliance and production costs. Traditional manual sampling inspection methods have two major drawbacks:
[0003] Insufficient recognition accuracy: Each mask is lightweight, and manual weighing is easily affected by environmental vibrations and visual misjudgments. Minor differences are difficult to detect, resulting in a high rate of missed defective products.
[0004] The sorting efficiency is low: operators need to manually move the masks from the production line to the weighing platform, weigh them, and then sort them into different areas. This process is cumbersome and can easily increase the mixing rate of qualified and defective products. Utility Model Content
[0005] In view of the shortcomings of the prior art, this utility model provides a mask weighing device, which overcomes the shortcomings of the prior art and effectively solves the problems of insufficient recognition accuracy and low sorting efficiency.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A mask weighing device includes a machine base. A feeding conveyor is installed at one end of the top outer wall of the machine base, and a discharging conveyor is installed at the other end of the top outer wall of the machine base. A mask weighing component is disposed on the top outer wall of the machine base between the feeding conveyor and the discharging conveyor. The mask weighing component includes a U-shaped frame, a weighing conveyor, a column, and a weighing sensor. The U-shaped frame is disposed on the top of the machine base, the weighing conveyor is installed on the inner wall of the U-shaped frame, the column is welded to the bottom outer wall of the U-shaped frame, and the weighing sensor is fixedly connected to the bottom outer wall of the column. An online dispensing component is disposed on the outer wall of one end of the discharging conveyor.
[0008] Preferably, the weighing sensor is fixedly connected to the top outer wall of the machine tool by screws.
[0009] Preferably, the online material distribution assembly includes symmetrically distributed connecting plates, material distribution plates, connecting seats, and cylinders. The connecting plates are welded to both sides of the outer wall of one end of the feeding conveyor, and the material distribution plates are rotatably connected between the two connecting plates. The outer walls of both ends of the material distribution plates are welded with shaft pins, and a connecting seat is welded to the outer wall of one of the shaft pins. The cylinder is hinged between the connecting seat and the machine base.
[0010] Preferably, the pivot pin is rotatably connected to the inner wall of the connecting plate.
[0011] Preferably, a protective frame is welded to the top outer wall of the machine, and a display screen is installed on the top outer wall of the protective frame. The display screen is connected to the weighing sensor via a signal line.
[0012] Preferably, a qualified product storage box and a defective product storage box are respectively placed at the other end of the top outer wall of the machine, and both the qualified product storage box and the defective product storage box are located at the bottom of one end of the feeding conveyor. The qualified product storage box is far away from the feeding conveyor, and the defective product storage box is close to the feeding conveyor.
[0013] The beneficial effects of this utility model are as follows:
[0014] 1. The mask weighing device designed in this paper has a weighing sensor that forms a cantilever structure through a column and a U-shaped frame. The weighing sensor is fixed to the top of the machine with screws. The weighing sensor can monitor the weight of the mask falling onto the weighing conveyor in real time, and has the characteristics of high-precision dynamic weighing.
[0015] 2. The mask weighing device in this design has a defective product collection box that is close to the end of the feeding conveyor. The material distribution plate is rotated by a cylinder-driven shaft pin. When the material distribution plate tilts down, the defective masks will slide into the defective product collection box, while the qualified products will fall into the qualified product collection box far away from the production line by horizontal conveying. The sorting efficiency is fast and the sorting error rate is reduced. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of a mask weighing device proposed in this utility model. Figure 1 ;
[0017] Figure 2 This is a schematic diagram of the overall structure of a mask weighing device proposed in this utility model. Figure 2 ;
[0018] Figure 3 This is a schematic diagram of the structure of a mask weighing component of a mask weighing device proposed in this utility model;
[0019] Figure 4 This is an enlarged schematic diagram of part A of the mask weighing device proposed in this utility model.
[0020] In the diagram: 1. Machine base; 2. Feeding conveyor; 3. Mask weighing assembly; 31. U-shaped frame; 32. Weighing conveyor; 33. Column; 34. Weighing sensor; 4. Discharging conveyor; 5. Online material distribution assembly; 51. Connecting plate; 52. Material distribution plate; 53. Connecting seat; 54. Cylinder; 6. Protective frame; 7. Display screen; 8. Qualified product storage box; 9. Defective product storage box. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0022] Reference Figures 1-4 Example 1: A mask weighing device includes a machine base 1. A feeding conveyor 2 is installed at one end of the top outer wall of the machine base 1, and a discharging conveyor 4 is installed at the other end of the top outer wall of the machine base 1. A mask weighing assembly 3 is arranged between the feeding conveyor 2 and the discharging conveyor 4 on the top outer wall of the machine base 1. The mask weighing assembly 3 includes a U-shaped frame 31, a weighing conveyor 32, a column 33, and a weighing sensor 34. The U-shaped frame 31 is located on the top of the machine base 1. The weighing conveyor 32 is installed on the inner wall of the U-shaped frame 31. The column 33 is welded to the bottom outer wall of the U-shaped frame 31. The weighing sensor 34 is fixedly connected to the bottom outer wall of the column 33. The weighing sensor 34 is fixedly connected to the top outer wall of the machine base 1 by screws.
[0023] The U-shaped frame 31 is located on the top of the machine base 1. The weighing conveyor 32 is installed on the inner wall of the U-shaped frame 31. The column 33 is vertically welded to the bottom of the U-shaped frame 31. The weighing sensor 34 is fixedly installed with the column 33. The signal line of the weighing sensor 34 is passed through the protective frame 6 and connected to the display screen 7 to display the quality value of a single mask in real time.
[0024] In this embodiment, the weighing sensor 34 forms a cantilever structure with the column 33 and the U-shaped frame 31, and the weighing sensor 34 is fixed to the top of the machine base 1 with screws. The weighing sensor 34 can monitor the weight of the mask falling onto the weighing conveyor 32 in real time, and has the characteristics of high-precision dynamic weighing.
[0025] In embodiment 2, an online material distribution assembly 5 is provided on the outer wall of one end of the feeding conveyor 4. The online material distribution assembly 5 includes symmetrically distributed connecting plates 51, material distribution plates 52, connecting seats 53, and cylinders 54. The connecting plates 51 are welded to both sides of the outer wall of one end of the feeding conveyor 4. The material distribution plates 52 are rotatably connected between the two connecting plates 51. The outer walls of both ends of the material distribution plates 52 are welded with shaft pins, and a connecting seat 53 is welded to the outer wall of one of the shaft pins. The cylinder 54 is hinged between the connecting seat 53 and the machine base 1. The shaft pin is rotatably connected to the inner wall of the connecting plate 51.
[0026] The connecting plate 51 is symmetrically welded to both sides of one end of the feeding conveyor 4. The inner side of the connecting plate 51 has a hole. The two ends of the dividing plate 52 are welded with shaft pins and embedded in the holes of the connecting plate 51. The shaft pin on one side of the dividing plate 52 extends and is welded to the connecting seat 53. The cylinder 54 is hinged between the machine base 1 and the connecting seat 53. The stroke adjustment of the cylinder 54 can drive the dividing plate 52 to rotate.
[0027] In this embodiment, since the defective product storage box 9 is close to the end of the unloading conveyor 4, the material distribution plate 52 is rotated by the cylinder 54. When the material distribution plate 52 tilts down, the unqualified masks will slide into the defective product storage box 9 through the material distribution plate 52, while qualified products will fall into the qualified product storage box 8 far away from the production line through horizontal conveying. The sorting efficiency is fast and the sorting error rate is reduced.
[0028] A protective frame 6 is welded to the top outer wall of the machine base 1, and a display screen 7 is installed on the top outer wall of the protective frame 6. The display screen 7 is connected to the weighing sensor 34 via a signal line.
[0029] The protective frame 6 is welded to the top of the machine base 1, and the display screen 7 is installed on the top of the protective frame 6.
[0030] The other end of the top outer wall of the machine platform 1 is respectively equipped with a qualified product storage box 8 and a defective product storage box 9. Both the qualified product storage box 8 and the defective product storage box 9 are located at the bottom of one end of the feeding conveyor 4. The qualified product storage box 8 is far away from the feeding conveyor 4, while the defective product storage box 9 is close to the feeding conveyor 4.
[0031] Both the defective product storage box 9 and the qualified product storage box 8 are placed below the sorting plate 52. The spacing between the defective product storage box 9 and the qualified product storage box 8 is adjustable to avoid cross-contamination during sorting.
[0032] Working principle: The mask packaging material is fed into the weighing conveyor 32 via the feeding conveyor 2. When the mask comes into contact with the weighing conveyor 32, the weighing sensor 34 collects the net weight data. The data is transmitted to the display screen 7 via the signal line, and the system compares it with the preset threshold.
[0033] Sorting decisions:
[0034] Qualified product: Cylinder 54 remains contracted, the material distribution plate 52 is in a horizontal state, and the mask is directly delivered to the qualified product storage box 8 via the feeding conveyor 4;
[0035] Defective product: The controller drives the cylinder 54 to extend, the material distribution plate 52 tilts down 45°, and the mask slides off the conveyor belt and falls into the defective product storage box 9.
[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A mask weighing device, comprising a machine base (1), characterized in that, A feeding conveyor (2) is installed at one end of the top outer wall of the machine platform (1), and a discharging conveyor (4) is installed at the other end of the top outer wall of the machine platform (1). A mask weighing assembly (3) is set between the feeding conveyor (2) and the discharging conveyor (4) on the top outer wall of the machine platform (1). The mask weighing assembly (3) includes a U-shaped frame (31), a weighing conveyor (32), a column (33) and a weighing sensor (34). The U-shaped frame (31) is set on the top of the machine platform (1). The weighing conveyor (32) is installed on the inner wall of the U-shaped frame (31). The column (33) is welded to the bottom outer wall of the U-shaped frame (31). The weighing sensor (34) is fixedly connected to the bottom outer wall of the column (33). An online material distribution assembly (5) is set on the outer wall of one end of the discharging conveyor (4).
2. The mask weighing device according to claim 1, characterized in that, The weighing sensor (34) is fixedly connected to the top outer wall of the machine base (1) by screws.
3. The mask weighing device according to claim 1, characterized in that, The online material distribution assembly (5) includes a symmetrically distributed connecting plate (51), a material distribution plate (52), a connecting seat (53), and a cylinder (54). The connecting plate (51) is welded to both sides of the outer wall of one end of the feeding conveyor (4). The material distribution plate (52) is rotatably connected between the two connecting plates (51). The outer walls of both ends of the material distribution plate (52) are welded with shaft pins, and a connecting seat (53) is welded to the outer wall of one of the shaft pins. The cylinder (54) is hinged between the connecting seat (53) and the machine base (1).
4. A mask weighing device according to claim 3, characterized in that, The pivot pin is rotatably connected to the inner wall of the connecting plate (51).
5. A mask weighing device according to claim 1, characterized in that, The machine base (1) has a protective frame (6) welded to the top outer wall, and a display screen (7) is installed on the top outer wall of the protective frame (6). The display screen (7) is connected to the weighing sensor (34) via a signal line.
6. A mask weighing device according to claim 1, characterized in that, The other end of the top outer wall of the machine (1) is respectively equipped with a qualified product storage box (8) and a defective product storage box (9), and both the qualified product storage box (8) and the defective product storage box (9) are located at the bottom of one end of the feeding conveyor (4). The qualified product storage box (8) is far away from the feeding conveyor (4), and the defective product storage box (9) is close to the feeding conveyor (4).