Multi-head scale
By designing the support frame, storage hopper, discharge hopper, and movable door structure of the multi-head weigher, the problem of material jamming was solved, and the sealing of the weighing hopper and multi-station collaborative weighing were realized, thereby improving weighing efficiency.
Patent Information
- Application Number
- CN202520654281.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-08
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-04-08
AI Technical Summary
Existing weighing equipment is prone to getting stuck at the gate when materials are discharged, which prevents the weighing body from sealing and affects subsequent weighing.
A multi-head scale was designed, comprising a support frame, storage hopper, discharge hopper, weighing hopper, and movable door structure. It uses a spiral blade shaft and gearbox to drive material conveying, combined with a cylinder to drive the opening and closing of the movable door to prevent material jamming, and separates materials of different particle sizes through inclined plates and slides.
It effectively prevents materials from getting stuck when they are discharged from the weighing hopper, ensures that the weighing hopper is sealed, enables multi-station collaborative weighing, and improves weighing efficiency.
Smart Images
Figure CN223870179U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of weighing technology, specifically a multi-head scale. Background Technology
[0002] A multi-head scale is an electronic scale device with dual weighing systems or dual workstations. It is commonly used in the material weighing and packaging process in industrial production. It can support the simultaneous weighing of multiple materials, realize mixed packaging, improve production efficiency, and is a highly efficient and intelligent weighing device.
[0003] When the existing weighing scale finishes weighing the material, the material is easily stuck at the gate when it is being discharged, which prevents the gate from closing properly and affects subsequent weighing. Utility Model Content
[0004] This invention provides a multi-head scale to solve the problems in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-head scale, including a support frame, a storage hopper mounted on the top of the support frame, the storage hopper having two feeding chambers equipped with feeding mechanisms, a discharge hopper with a bottom opening and communicating with the feeding chambers fixedly connected to one side of the storage hopper, a weighing hopper located below the discharge hopper on one side of the support frame, the weighing hopper having a bottom opening, and a U-shaped movable door movably connected to the weighing hopper, the bottom inner wall of the movable door being able to close the bottom opening of the weighing hopper.
[0006] Furthermore, the inner cavity of the discharge hopper is movably connected to a gate plate that can close its bottom opening.
[0007] Furthermore, the feeding mechanism includes a gearbox, a stepper motor, and a blade shaft. Both feeding chambers are rotatably connected to blade shafts with helical blades. A gearbox connected to the blade shaft via a coupling is installed on the side of the storage hopper away from the discharge hopper. The gearbox is connected to a stepper motor.
[0008] Furthermore, a weighing sensor is installed on the top of the support frame, and a reinforcing rib is fixedly connected to one side of the weighing hopper. The weighing sensor is connected to the reinforcing rib.
[0009] Furthermore, the weighing hopper has a vertical cube structure, passes through the inner cavity of the switchable door, and has a cylinder hinged to its side wall to drive the switchable door.
[0010] Furthermore, one side of the support frame is connected to a transition bucket located below the weighing bucket via a mounting rod.
[0011] Furthermore, the storage hopper has a discharge chamber located below the feeding chamber. The discharge chamber and the feeding chamber are separated by a partition with evenly spaced holes at the top. The storage hopper has an opening on the side away from the discharge hopper that communicates with the discharge chamber. The side wall of the storage hopper is fitted with an inclined plate that matches the opening.
[0012] Furthermore, a slide rail located below the inclined plate is fixedly installed on one side of the support frame.
[0013] Compared with the prior art, this utility model provides a multi-head scale, which has the following beneficial effects:
[0014] 1. This multi-head scale, during the process of discharging materials after weighing, can prevent materials from getting stuck at the opening and closing of the movable door, thus preventing the weighing hopper from failing to seal.
[0015] 2. This multi-head scale can perform weighing operations in a coordinated manner at multiple workstations. Multiple weighing systems work alternately. While one group is feeding fine material, the other groups can start the next round of coarse material feeding, which can improve weighing efficiency. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] In the diagram: 1. Support frame; 2. Storage hopper; 3. Feeding chamber; 4. Discharge hopper; 5. Gate plate; 6. Weighing hopper; 7. Reinforcing rib plate; 8. Gearbox; 9. Stepper motor; 10. Blade shaft; 11. Weighing sensor; 12. Switching door; 13. Cylinder; 14. Transition hopper; 15. Inclined plate; 16. Slide rail. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0019] Please see Figure 1 This utility model discloses a multi-head scale, including a support frame 1. A storage hopper 2 is installed on the top of the support frame 1. The storage hopper 2 has two feeding chambers 3 with feeding mechanisms. A discharge hopper 4 with a bottom opening and communicating with the feeding chambers 3 is fixedly connected to one side of the storage hopper 2. A weighing hopper 6 is provided on one side of the support frame 1 below the discharge hopper 4. The weighing hopper 6 has a bottom opening. The weighing hopper 6 is movably connected to a U-shaped switchable door 12. The bottom inner wall of the switchable door 12 can close the bottom opening of the weighing hopper 6.
[0020] The number of feeding chambers 3 is two or more, and the number of discharge hoppers 4 and weighing hoppers 4 corresponds to the number of feeding chambers 3. That is, the weighing station of the multi-head scale can be two, three, four or more, which facilitates the collaborative weighing operation of multiple stations.
[0021] Specifically, the inner cavity of the discharge hopper 4 is movably connected to a gate plate 5 that can close its bottom opening.
[0022] In this embodiment, the gate plate 5 can be opened or closed by a motor, pneumatic linkage mechanism, etc., so that the material inside the discharge hopper 4 can pass through its bottom opening into the weighing hopper 6.
[0023] Specifically, the feeding mechanism includes a gearbox 8, a stepper motor 9, and a blade shaft 10. Both feeding chambers 3 are rotatably connected to a blade shaft 10 with spiral blades. The storage hopper 2 is equipped with a gearbox 8 connected to the blade shaft 10 via a coupling on the side away from the discharge hopper 4. The gearbox 8 is connected to the stepper motor 9.
[0024] In this embodiment, when the blade shaft 10 with spiral blades rotates, it conveys the material inside the feeding chamber 3 to the discharge hopper 4 so that the discharge hopper 4 can send the material to the weighing hopper 6 for weighing.
[0025] Specifically, a weighing sensor 11 is installed on the top of the support frame 1, and a reinforcing rib plate 7 is fixedly connected to one side of the weighing hopper 6. The weighing sensor 11 is connected to the reinforcing rib plate 7.
[0026] In this embodiment, the weighing sensor 11 is a cantilever beam sensor.
[0027] Specifically, the weighing hopper 6 is a vertical cube structure. The weighing hopper 6 passes through the inner cavity of the switchable door 12, and the side wall of the weighing hopper 6 is hinged to a cylinder 13 that drives the switchable door 12 to move.
[0028] In this embodiment, the two arms of the movable door 12 are rotatably connected to the two sides of the weighing hopper 6, and the output shaft of the cylinder 13 is hinged to the side wall of the movable door 12. The cylinder 13 drives the movable door 12 to open or close.
[0029] The scraping motion during the opening of the movable door 12 allows the material to slide down from the weighing hopper 6 quickly by its own weight.
[0030] Specifically, one side of the support frame 1 is connected to a transition bucket 14 located below the weighing bucket 6 via a mounting rod.
[0031] In this embodiment, the transition hopper 14 is used to receive the material discharged from the weighing hopper 6 so that the material can be transferred to the next process.
[0032] Specifically, the storage hopper 2 has a discharge chamber located below the feeding chamber 3. The discharge chamber and the feeding chamber 3 are separated by a partition with evenly spaced holes at the top. The storage hopper 2 has an opening on the side away from the discharge hopper 4 that communicates with the discharge chamber. The side wall of the storage hopper 2 is fitted with an inclined plate 15 that matches the opening.
[0033] A slide rail 16 located below the inclined plate 15 is fixedly installed on one side of the support frame 1.
[0034] In this embodiment, when the feeding chamber 3 conveys large pieces of material such as large ice blocks, small materials such as crushed ice contained in the large ice blocks can enter the discharge chamber downwards through the holes in the partition. The height of the bottom of the storage hopper 2 near the discharge hopper 4 is higher than the height of the bottom of the storage hopper 2 near the inclined plate 15, so that the bottom of the storage hopper 2 and the bottom inner wall of the discharge chamber are inclined so that small materials can slide towards the inclined plate 15.
[0035] The slide 16 is used to receive materials that slide downward along the inclined plate 15, which is U-shaped in general.
[0036] In summary, this multi-head scale, during the process of weighing and discharging materials, can prevent materials from getting stuck at the opening and closing of the movable door 12, thus preventing the weighing hopper 6 from failing to seal. It can also perform weighing operations in a coordinated manner at multiple workstations, with multiple weighing systems working alternately. While one system is feeding fine materials, the other systems can start the next round of coarse feeding, thereby improving weighing efficiency.
[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A multi-head scale, comprising a support frame (1), characterized in that: The top of the support frame (1) is equipped with a storage hopper (2), which has at least two feeding chambers (3) with feeding mechanisms. A discharge hopper (4) with a bottom opening and communicating with the feeding chamber (3) is fixedly connected to one side of the storage hopper (2). A weighing hopper (6) is provided on one side of the support frame (1) below the discharge hopper (4). The weighing hopper (6) has a bottom opening and is movably connected to a U-shaped switchable door (12). The bottom inner wall of the switchable door (12) can close the bottom opening of the weighing hopper (6).
2. A multi-head scale according to claim 1, characterized in that: The inner cavity of the discharge hopper (4) is movably connected to a gate plate (5) that can close its bottom opening.
3. A multi-head scale according to claim 1, characterized in that: The feeding mechanism includes a gearbox (8), a stepper motor (9), and a blade shaft (10). Both feeding chambers (3) are rotatably connected to a blade shaft (10) with helical blades. The storage hopper (2) is equipped with a gearbox (8) connected to the blade shaft (10) via a coupling on the side away from the discharge hopper (4). The gearbox (8) is connected to the stepper motor (9).
4. A multi-head scale according to claim 1, characterized in that: A weighing sensor (11) is installed on the top of the support frame (1), and a reinforcing rib plate (7) is fixedly connected to one side of the weighing hopper (6). The weighing sensor (11) is connected to the reinforcing rib plate (7).
5. A multi-head scale according to claim 1, characterized in that: The weighing hopper (6) is a vertical cube structure. The weighing hopper (6) passes through the inner cavity of the switchable door (12). The side wall of the weighing hopper (6) is hinged with a cylinder (13) that drives the switchable door (12) to move.
6. A multi-head scale according to claim 1, characterized in that: One side of the support frame (1) is connected to a transition bucket (14) located below the weighing bucket (6) via a mounting rod.
7. A multi-head scale according to claim 1, characterized in that: The storage hopper (2) has a discharge chamber located below the feeding chamber (3). The discharge chamber and the feeding chamber (3) are separated by a partition with evenly spaced holes at the top. The storage hopper (2) has an opening on the side away from the discharge hopper (4) that communicates with the discharge chamber. The side wall of the storage hopper (2) is fitted with an inclined plate (15) that matches the opening.
8. A multi-head scale according to claim 7, characterized in that: A slide (16) located below the inclined plate (15) is fixedly installed on one side of the support frame (1).