Semi-automatic weighing packaging machine
By designing a semi-automatic weighing and packaging machine, and using components such as a weighing mechanism and a material-bearing mechanism, the machine achieves automated weighing and packaging of materials. This solves the problem of low efficiency in manual operation in existing technologies, improves packaging efficiency, and reduces labor intensity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2026-02-09
- Publication Date
- 2026-03-13
AI Technical Summary
Existing weighing and packaging machines require a large amount of manual operation when packaging a large number of single small solid items, resulting in a large workload and low efficiency.
A semi-automatic weighing and packaging machine was designed, comprising a weighing mechanism, a material-bearing mechanism, a material-blocking mechanism, a film-supporting mechanism, and a forming mechanism. It realizes the weighing, conveying, and packaging of materials through automated assembly line operation, reducing manual operation.
It improves packaging efficiency, reduces labor intensity, and automates the material weighing and packaging process. It has a simple structure, is easy to assemble, and has a long service life.
Smart Images

Figure CN223990190U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a packaging machine, specifically a semi-automatic weighing and packaging machine. Background Technology
[0002] A weighing and packaging machine is an electromechanical integrated device used for quantitative weighing and automatic packaging of materials, widely used in various industries such as packaging of mechanical parts. In existing technology, manual operation is typically used to accurately count and package large quantities of single, small solid items. During packaging, a basin or larger container is placed on the weighing machine, and multiple (or one) small solid items are placed inside. The weight of the multiple (or one) small solid items is first measured, and then weighed again as needed. Once the predetermined weight is reached, the small solid items are manually transferred (the container is manually lifted from the weighing machine) into a hopper (usually connected to a packaging mechanism) or a packaging bag for packaging. This manual operation method is labor-intensive, requires a large number of personnel, and has low packaging efficiency. Utility Model Content
[0003] To address the problems of high workload and low efficiency in manual handling of existing weighing and packaging machines in the background art, this utility model provides a semi-automatic weighing and packaging machine.
[0004] The technical solution of this utility model is: a semi-automatic weighing and packaging machine, including a frame, and further comprising:
[0005] The weighing mechanism, mounted on the frame, is used for weighing.
[0006] A material-bearing mechanism, located on a weighing mechanism, is used to receive materials for weighing purposes. The material-bearing mechanism includes a material-bearing frame and a conveyor belt. The material-bearing frame is located on the weighing mechanism, and the conveyor belt is located on the material-bearing frame. The conveyor belt has a first position for receiving materials and a second position for conveying the weighed materials for easy packaging. The frame is provided with a discharge port, which is located behind the conveyor belt in the conveying direction.
[0007] As a further improvement of this utility model, it also includes a material blocking mechanism, which is disposed on the frame. The material blocking mechanism includes a material blocking plate, which has a first position of closing the material blocking and a second position of opening to facilitate the conveyor belt to transport materials.
[0008] As a further improvement of this utility model, the material support frame includes a support plate and a baffle. There are two support plates and they are located on both sides of the conveyor belt. A baffle is provided between the two support plates. The baffle, support plate and baffle plate cooperate with each other to form a weighing space with an opening at the top.
[0009] As a further improvement of this utility model, the inner side of the support plate is provided with a baffle, the horizontal height of the baffle is lower than the horizontal height of the support plate, and the upper end surface of the baffle is provided with an inclined surface.
[0010] As a further improvement of this utility model, the conveyor belt is arranged in a ring shape, and a support plate for weighing is provided in the ring area of the ring conveyor belt.
[0011] As a further improvement of this utility model, the material support frame is provided with a driven roller and a roller motor for driving the conveyor belt, and the distance between the driven roller and the roller motor is adjustable.
[0012] As a further improvement of this utility model, the discharge port is provided with a transition hopper to facilitate material entry into the bag, and the material receiving mechanism is located inside the frame and forms an integral structure with the frame.
[0013] As a further improvement to this utility model, it also includes:
[0014] The film feeding mechanism is located at the discharge port of the frame and is used for rapid film feeding.
[0015] The forming mechanism, located at the material outlet of the frame, is used to form the film material into a bag shape for easy material receiving.
[0016] As a further improvement of this utility model, it also includes a discharge structure located below the forming mechanism. The discharge structure includes a receiving plate for receiving packaged materials and a conveyor belt for transporting materials on the receiving plate.
[0017] As a further improvement of this utility model, it also includes a feeding platform for placing materials to be weighed. The feeding platform is provided with a feeding hopper, which is inclined and its horizontal height is not lower than that of the conveyor belt.
[0018] The beneficial effects of this utility model are that it incorporates a material-bearing mechanism for easy weighing, and a conveyor belt to transport the weighed material to the discharge port for easy packaging. This utility model eliminates the need for manual pouring of products into the packaging machine after weighing, reducing labor intensity and improving packaging efficiency. This utility model also features a simple structure, convenient assembly, reliable operation, and long service life. Attached Figure Description
[0019] Appendix Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.
[0020] Appendix Figure 2 This is a schematic diagram of the structure of the film-supporting mechanism in an embodiment of the present invention.
[0021] Appendix Figure 3 For the appendix Figure 2 A schematic diagram of the explosion structure.
[0022] Appendix Figure 4 This is an exploded structural diagram of the material blocking mechanism in an embodiment of this utility model.
[0023] Appendix Figure 5 This is a cross-sectional structural diagram of the weighing mechanism in an embodiment of the present invention.
[0024] Appendix Figure 6 This is an exploded structural diagram of the material-bearing mechanism in an embodiment of this utility model.
[0025] Appendix Figure 7 This is a schematic diagram of the exploded structure of the material-bearing mechanism in an embodiment of this utility model.
[0026] Appendix Figure 8 This is a schematic diagram of the material discharge structure in an embodiment of the present invention.
[0027] In the diagram, 1. Frame; 11. Discharge port; 12. Transition hopper; 2. Weighing mechanism; 3. Material receiving mechanism; 31. Material receiving frame; 311. Support plate; 312. Baffle; 32. Conveyor belt; 33. Weighing space; 34. Baffle bar; 341. Inclined surface; 35. Pallet; 36. Annular area; 37. Driven roller; 38. Roller motor; 4. Material blocking mechanism; 41. Material blocking plate; 5. Film mounting mechanism; 6. Forming mechanism; 7. Discharge structure; 71. Receiving plate; 72. Conveyor belt; 8. Discharge platform; 81. Discharge hopper. Detailed Implementation
[0028] The embodiments of this utility model will be further described below with reference to the accompanying drawings:
[0029] Depend on Figure 1 Combination Figure 2-8 As shown, a semi-automatic weighing and packaging machine includes a frame 1, and also includes:
[0030] Weighing mechanism 2, mounted on frame 1, is used for weighing;
[0031] A material-bearing mechanism 3, mounted on the weighing mechanism 2, is used to receive materials for weighing by the weighing mechanism 2. The material-bearing mechanism 3 includes a material-bearing frame 31 and a conveyor belt 32. The material-bearing frame 31 is mounted on the weighing mechanism 2, and the conveyor belt 32 is mounted on the material-bearing frame 31. The conveyor belt 32 has a first position for receiving materials and a second position for conveying the weighed materials for easy packaging. A discharge port 11 is provided on the frame 1, located behind the conveyor belt 32 in the conveying direction. The beneficial effects of this invention are that the material-bearing mechanism facilitates weighing, and the conveyor belt transports the weighed materials to the discharge port for easy packaging. This invention optimizes the manual pouring of products into the packaging machine after weighing, reducing labor intensity and improving packaging efficiency. This invention also has the advantages of simple structure, convenient assembly, reliable operation, and long service life. Further explanation with reference to the attached diagram: 1. The product is manually pushed from the feeding platform onto the conveyor belt of the receiving mechanism. The feeding platform can actually be a lifting platform to accommodate different people and different materials. Usually, the feeding platform is higher than the conveyor belt, and the worker only needs to move the material to land on the conveyor belt; 2. The weighing mechanism weighs the entire receiving mechanism (including the material on it). Once the preset quantity (weight) is reached, the worker is prompted to stop; 3. The conveyor belt is started to feed the material forward into the packaging bag; 4. The packaging machine starts, and after packaging, the packaged product is transported out by the finished product conveyor belt.
[0032] This utility model also includes a material blocking mechanism 4, mounted on the frame 1. The material blocking mechanism 4 includes a material blocking plate 41, which has a first position of closing and a second position of opening to facilitate material conveying by the conveyor belt 32. The material blocking plate is installed to block material during unloading from the feeding platform, preventing material from slipping into the packaging bag before weighing. After weighing, it opens to facilitate material conveying by the conveyor belt. When the plate is open, the conveyor belt can deliver the material from the discharge port (transition hopper) into the packaging bag. Typically, the material blocking plate can be driven by a motor, cylinder, hydraulic cylinder, etc.
[0033] The material receiving rack 31 includes a support plate 311 and a baffle 312. There are two support plates 311 located on both sides of the conveyor belt 32, and a baffle 312 is positioned between the two support plates 311. The baffle 312, support plates 311, and baffle 41 cooperate to form a weighing space 33 with an opening at the top. This structure prevents materials from falling outside the receiving rack and facilitates weighing.
[0034] The inner side of the support plate 311 is provided with a baffle 34, the horizontal height of which is lower than the horizontal height of the support plate 311, and the upper end surface of the baffle 34 is provided with an inclined surface 341. This structure prevents materials from falling outside the material receiving frame, facilitates weighing, and ensures that materials fall reliably onto the conveyor belt.
[0035] The conveyor belt 32 is arranged in a ring shape, and a support plate 35 for supporting materials during weighing is provided in the ring area 36 of the ring conveyor belt 32. The support plate can support the material falling on the surface of the conveyor belt and prevent the conveyor belt from being excessively deformed, which would affect the use of the product.
[0036] The material support frame 31 is equipped with a driven roller 37 and a roller motor 38 for driving the conveyor belt 32. The distance between the driven roller 37 and the roller motor 38 is adjustable. Specifically, the driven roller is mounted on the material support frame via a slide groove and can slide relative to the material support frame, thereby adjusting the distance between the driven roller and the roller motor, which makes the material conveying of the conveyor belt reliable.
[0037] The discharge port 11 is provided with a transition hopper 12 to facilitate material entry into the bag, and the material receiving mechanism 3 is located inside the frame 1 and forms an integral structure with the frame 1. This utility model adopts an integrated design, designing the conveyor belt for weighing inside the packaging machine box (frame), which improves the overall integrity of the product and optimizes the action of manually pouring the product into the packaging machine after weighing.
[0038] This utility model also includes:
[0039] The film feeding mechanism 5 is located at the discharge port 11 of the frame body 1 and is used for rapid feeding of film material.
[0040] The forming mechanism 6, located at the discharge port 11 of the frame 1, is used to form the film material into a bag shape for easy receiving. The film feeding mechanism facilitates film material feeding; typically, a certain length of film material is fed in after one processing cycle, facilitating continuous processing. The forming mechanism is used for film material forming. In practice, a film cutting device and a heat sealing device are also usually included. The film feeding mechanism, forming mechanism, film cutting device, and heat sealing device can all be implemented using the existing packaging machine structure, which will not be elaborated here. In practice, after weighing, the weighing mechanism can control (through a control circuit board or the packaging machine's built-in control system) the conveyor belt of the material receiving mechanism, the lifting and lowering of the baffle plate, and the film feeding of the film feeding mechanism.
[0041] This invention also includes a discharge structure 7, located below the forming mechanism 6. The discharge structure 7 includes a receiving plate 71 for receiving packaged materials and a conveyor belt 72 for transporting materials on the receiving plate 71. This structure facilitates reliable and rapid discharge and subsequent processing.
[0042] This utility model also includes a feeding platform 8 for placing materials to be weighed. The feeding platform 8 is equipped with a hopper 81, which is angled and its horizontal height is not lower than that of the conveyor belt 32. This structure allows workers to easily move the material, which then falls onto the receiving mechanism, facilitating weighing and reducing labor intensity.
[0043] In the description of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They 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, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0044] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 based on the specific circumstances. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0045] Please note to all technical personnel: Although this utility model has been described according to the specific embodiments above, the inventive concept of this utility model is not limited to this utility model. Any modification that utilizes the inventive concept will be included within the scope of protection of this utility model patent.
Claims
1. A semi-automatic weighing and packaging machine comprising a frame (1), characterized in that: Also include: The weighing mechanism (2) is arranged on the frame body (1), which is used for weighing; The material receiving mechanism (3) is arranged on the weighing mechanism (2) and is used for receiving materials to facilitate the weighing of the weighing mechanism (2); the material receiving mechanism (3) comprises a material receiving frame (31) and a conveying belt (32), the material receiving frame (31) is arranged on the weighing mechanism (2), the conveying belt (32) is arranged on the material receiving frame (31), the conveying belt (32) has a first position for receiving materials and a second position for conveying materials after weighing to facilitate packaging; the frame body (1) is provided with a discharge port (11), and the discharge port (11) is arranged behind the conveying direction of the conveying belt (32).
2. A semi-automatic weighing and packaging machine according to claim 1, characterized in that Also include the material blocking mechanism (4) arranged on the frame body (1), the material blocking mechanism (4) comprises a material blocking plate (41), the material blocking plate (41) has a first position for closing the material blocking and a second position for opening to facilitate the conveying of the conveying belt (32).
3. A semi-automatic weighing and packaging machine according to claim 2, characterized in that The material receiving frame (31) comprises a support plate (311) and a baffle (312), the support plate (311) has two and is arranged on both sides of the conveying belt (32), and the baffle (312) is arranged between the two support plates (311); the baffle (312), the support plate (311) and the material blocking plate (41) cooperate to form an open-top weighing space (33).
4. A semi-automatic weighing and packaging machine according to claim 3, characterized in that The inner side of the support plate (311) is provided with a blocking strip (34), the horizontal height of the blocking strip (34) is lower than that of the support plate (311), and the upper end face of the blocking strip (34) is provided with an inclined surface (341).
5. A semi-automatic weighing and packaging machine according to claim 1, characterized in that The conveying belt (32) is arranged in a ring shape, and a supporting plate (35) is arranged in the ring area (36) of the ring-shaped conveying belt (32) for supporting during weighing.
6. A semi-automatic weighing and packaging machine according to claim 1, characterized in that The material receiving frame (31) is provided with a driven roller (37) and a roller motor (38) for driving the conveying belt (32) to move, and the distance between the driven roller (37) and the roller motor (38) is adjustable.
7. A semi-automatic weighing and packaging machine according to claim 1, characterized in that The discharge port (11) is provided with a transition hopper (12) for facilitating the material into the bag, and the material receiving mechanism (3) is arranged in the frame body (1) and forms an integral structure with the frame body (1).
8. A semi-automatic weighing and packaging machine according to claim 1, characterized in that Also include: The frame film mechanism (5) is arranged at the discharge port (11) of the frame body (1) and is used for rapid feeding of the film material; The forming mechanism (6) is arranged at the discharge port (11) of the frame body (1) and is used for forming the film material into a bag shape to facilitate material receiving.
9. A semi-automatic weighing and packaging machine according to claim 8, characterized in that Also include the discharge structure (7) arranged below the forming mechanism (6), the discharge structure (7) comprises a material receiving plate (71) for receiving the packaged material and a conveying belt (72) for conveying the material on the material receiving plate (71).
10. A semi-automatic weighing and packaging machine according to claim 1, characterized in that Also include the discharging platform (8) for placing the material to be weighed, the discharging platform (8) is provided with a lower hopper (81), and the lower hopper (81) is arranged obliquely and the horizontal height of the lower hopper (81) is not lower than the horizontal height of the conveying belt (32).