Weighing hopper capable of automatically weighing

Abstract

The utility model relates to the technical field of weighing hoppers, in particular to a weighing hopper capable of weighing automatically, which comprises a support, a weighing hopper and a weighing sensor, a support frame is mounted at a feed port end of the weighing hopper and positioned at the top of the support, the weighing sensor is arranged between the support frame and the support, a baffle is hinged to a discharge port end of the weighing hopper, and the baffle is positioned at the top of the support. The weighing hopper is sleeved with a limiting frame, the bottom of the limiting frame is connected with the baffle through a connecting rod, and air cylinders are installed on the two side walls of the weighing hopper through supporting frames. Raw materials in the hopper are weighed through the weighing sensor, the limiting frame is pulled to ascend and descend through the air cylinder, the baffle is driven to rotate, automatic discharging of the raw materials is achieved, and compared with a traditional weighing and discharging mode, automatic operation can be achieved, the working efficiency is improved, and operation steps are reduced; and by using the limiting mechanism, the guide block, the guide rod and other structures, the lifting stability of the limiting frame can be improved, and it is guaranteed that the four baffles can be opened synchronously.

Description

Technical Field

[0001] This utility model relates to the field of weighing hopper technology, specifically to a weighing hopper that can automatically weigh materials. Background Technology

[0002] Plastic pallets, as a common logistics packaging tool, are widely used in the containerization, stacking, handling, and transportation of goods. With the rapid development of the logistics industry, the demand for plastic pallets is constantly increasing, requiring manufacturers to improve production efficiency and product quality. In the production process of compression-molded plastic pallets, the weighing of raw materials is a crucial step. The compression molding process requires mixing various raw materials, such as plastic granules and additives, in a certain proportion before feeding them into the compression molding equipment. In this process, the raw material weighing equipment, as a key component of compression molding, directly affects production efficiency and product quality.

[0003] Traditional raw material weighing methods have many problems. For example, manual weighing is not only inefficient but also prone to human error, leading to inconsistent material filling amounts and affecting pallet quality. Furthermore, after manual weighing, traditional weighing devices cannot automatically unload the materials; workers must use shovels or other tools to pour the raw materials onto a trolley and manually transport it to the required location, making the process cumbersome. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing an automatic weighing hopper to solve the technical problem mentioned in the background art: traditional weighing methods cannot automatically unload materials, requiring secondary manual operation, which leads to cumbersome operation steps.

[0005] To achieve the above technical objectives, this utility model proposes the following technical solution: an automatic weighing hopper, comprising a support, a weighing hopper, and a weighing sensor. A support frame is installed at the inlet end of the weighing hopper, and the support frame is located at the top of the support. The weighing sensor is disposed between the support frame and the support. A baffle is hinged to the outlet end of the weighing hopper. A limit frame is mounted on the weighing hopper, and the bottom of the limit frame is connected to the baffle via a connecting rod. Cylinders are installed on both side walls of the weighing hopper via support frames, and the output ends of the cylinders are connected to the limit frames.

[0006] Furthermore, the baffles are triangular in shape and there are four of them, which are distributed around the discharge port of the weighing hopper.

[0007] Furthermore, the limiting frame is provided with limiting mechanisms on both sides. The limiting mechanism includes a slider on the limiting frame, a slide rail on the outer wall of the weighing hopper, and a limiting block on the top of the slide rail. The slider is slidably connected to the slide rail.

[0008] Furthermore, the support frame is provided with guide blocks on both sides of the cylinder, and guide holes are provided on the guide blocks. Guide rods are slidably installed in the guide holes, and the end of the guide rod away from the guide block is set on the limit frame.

[0009] Furthermore, a controller is installed on one side of the bracket. The input terminal of the controller is electrically connected to the signal output terminal of the weighing sensor, and the output terminal of the controller is electrically connected to the input terminal of the cylinder.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model has a simple structure and strong practicality. It weighs the raw materials in the hopper symmetrically through a weighing sensor, and pulls the limit frame to rise and fall through a cylinder, causing the baffle to rotate, thereby realizing the automatic unloading of the raw materials. Compared with the traditional weighing and unloading methods, it can realize automated operation, improve work efficiency, and reduce operation steps. Through the use of limit mechanism, guide block and guide rod and other structures, the stability of the limit frame during lifting and lowering can be improved, ensuring that the four baffles can open synchronously. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0012] Figure 2 This is a utility model Figure 1 A schematic diagram of the front view structure in the diagram;

[0013] Figure 3 This is the utility model Figure 1 Schematic diagram of the structure from the middle side view.

[0014] In the diagram, 1. bracket; 2. weighing hopper; 3. weighing sensor; 4. support frame; 5. baffle; 6. limit frame; 7. connecting rod; 8. support frame; 9. cylinder; 10. guide block; 11. guide rod; 12. slider; 13. slide rail; 14. limit block; 15. controller. Detailed Implementation

[0015] The following are specific embodiments of the present invention, and the technical solution of the present invention will be further described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0016] like Figure 1-3As shown, this utility model provides an automatic weighing hopper, including a support 1, a weighing hopper 2, and a weighing sensor 3. A support frame 4 is installed at the inlet end of the weighing hopper 2, and the support frame 4 is located on top of the support 1. The weighing sensor 3 is located between the support frame 4 and the support 1. A baffle 5 is hinged to the outlet end of the weighing hopper 2. A limit frame 6 is mounted on the weighing hopper 2. The bottom of the limit frame 6 is connected to the baffle 5 through a connecting rod 7. The two ends of the connecting rod 7 are respectively hinged to the bottom of the limit frame 6 and the outer wall of the baffle 5. Cylinders 9 are installed on the two side walls of the weighing hopper 2 through support frames 8. The support frames 8 are fixedly installed on the outer wall of the weighing hopper 2. The cylinders 9 are installed on the support frames 8 through bolts. The output end of the cylinders 9 is connected to the limit frame 6.

[0017] like Figure 1 As shown, the baffle 5 is hinged to the lower part of the discharge port of the weighing hopper 2. The weighing hopper 2 has a rectangular frame structure. There are four weighing sensors 3, which are located at the four corners of the bottom of the supporting frame 4. They are used to weigh the raw materials in the hopper 2 in real time to achieve precise control of the weight of the raw materials. When the weighing hopper 2 is unloading, the cylinder 9 drives the limit frame 6 to move upward. During the upward movement, the limit frame 6 will control the baffle 5 to rotate under the action of the connecting rod 7. The larger the angle of rotation of the baffle 5, the larger the discharge port of the weighing hopper 2 will open. In this embodiment, the cylinder 9 drives the limit frame 6 to rotate the baffle 5 to realize the opening and closing of the discharge port, thereby realizing the automatic weighing and unloading of the raw materials.

[0018] The baffles 5 are triangular in shape and there are four of them, which are distributed around the discharge port of the weighing hopper 2.

[0019] like Figure 1 As shown, four triangular baffles 5 are hinged around the discharge port of the weighing hopper 2. When closed, the four baffles 5 form an inverted quadrangular pyramid structure. When fully opened, all four baffles 5 are in a vertical state. The raw material in the weighing hopper 2 lacks support and flows smoothly out along the opening direction under the action of gravity. The discharge port is the same size as the bottom opening of the weighing hopper 2, which can drain all the raw material in the weighing hopper 2 and reduce the possibility of material blockage during discharge.

[0020] Limiting mechanisms are provided on both sides of the limiting frame 6. The limiting mechanism includes a slider 12 fixedly installed on the inner wall of the limiting frame 6 and a slide rail 13 fixedly installed on the outer wall of the weighing hopper 2. The slider 12 and the slide rail 13 are slidably connected, and a limiting block 14 is fixedly connected to the top of the slide rail 13.

[0021] like Figure 1 and 2As shown, the slider 12 slides up and down along the slide rail 13, which can further restrict the movement direction of the limit frame 6. It has a leveling effect on the limit frame 6, keeps the baffle 5 open, and prevents the limit frame 6 from tilting, which would cause the discharge port to open more on one side and less on the other. The limit block 14 also further prevents the baffle 5 from being stuck due to excessive opening and closing, which would affect the driving effect.

[0022] Guide blocks 10 are provided on both sides of the support frame 8 and the cylinder 9. Guide holes are provided on the guide blocks 10, and guide rods 11 are slidably installed in the guide holes. The end of the guide rod 11 away from the guide blocks 10 is set on the limit frame 6.

[0023] like Figure 1 and 3 As shown, during the process of cylinder 9 driving limit frame 6 to rise and fall, guide rod 11 slides up and down along guide hole to ensure the movement trajectory of limit frame 6 and prevent limit frame 6 from moving in the horizontal direction during the rising and falling process, which would damage cylinder 9 and affect the opening and closing degree of each baffle 5.

[0024] A controller 15 is installed on one side of the bracket 1. The input terminal of the controller 15 is electrically connected to the signal output terminal of the weighing sensor 3, and the output terminal of the controller 15 is electrically connected to the input terminal of the cylinder 9.

[0025] like Figure 1 As shown, in this embodiment, the controller 15 is a PLC controller. The weighing sensor 3 transmits the weight signal detected in real time to the controller 15. When the preset weight is reached, the controller 15 issues a command to control the cylinder 9 to retract, thereby driving the limit frame 6 to rise, so that the baffle 5 is opened and automatic unloading is achieved.

[0026] Operating principle: Raw materials enter the weighing hopper 2 through the feed inlet. The weighing sensor 3 monitors the weight of the raw materials in the weighing hopper 2 in real time and transmits the monitored signal to the controller 15. A rotating hopper is placed at the bottom of the weighing hopper 2 in advance. When the preset weight is reached, the controller 15 issues a command to start the cylinder 9. The cylinder 9 retracts and pulls the limit frame 6 upward. During the upward movement, the four baffles 5 rotate synchronously around the connection between the baffles 5 and the weighing hopper 2 under the action of the connecting rod 7, so that the baffles 5 are opened, and the raw materials are discharged from the weighing hopper 2 and enter the rotating hopper. The rotating hopper transports the weighed raw materials to the next equipment for the next operation. In this process, the weighing and unloading of raw materials are automated, reducing manual labor and improving production efficiency. At the same time, the stability of the limit frame 6 during lifting and lowering is improved by the limit mechanism and the guide rod 11, so that the four baffles 5 can open or close synchronously.

[0027] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A weighing hopper capable of automatic weighing, characterized in that: The weighing hopper includes a support (1), a weighing hopper (2), and a weighing sensor (3). A support frame (4) is installed at the inlet end of the weighing hopper (2), and the support frame (4) is located on the top of the support (1). The weighing sensor (3) is located between the support frame (4) and the support (1). A baffle (5) is hinged at the outlet end of the weighing hopper (2). A limit frame (6) is mounted on the weighing hopper (2). The bottom of the limit frame (6) is connected to the baffle (5) by a connecting rod (7). Cylinders (9) are installed on both sides of the weighing hopper (2) by a support frame (8). The output end of the cylinder (9) is connected to the limit frame (6).

2. The weighing hopper with automatic weighing capability according to claim 1, characterized in that: The baffles (5) are triangular in shape and there are four of them, which are distributed around the discharge port of the weighing hopper (2).

3. The weighing hopper capable of automatic weighing according to claim 2, characterized in that: Both sides of the limiting frame (6) are provided with limiting mechanisms. The limiting mechanisms include a slider (12) on the limiting frame (6), a slide rail (13) on the outer wall of the weighing hopper (2), and a limiting block (14) on the top of the slide rail (13). The slider (12) is slidably connected to the slide rail (13).

4. The weighing hopper capable of automatic weighing according to claim 2, characterized in that: Guide blocks (10) are provided on both sides of the support frame (8) and located on both sides of the cylinder (9). Guide holes are provided on the guide blocks (10), and guide rods (11) are slidably installed in the guide holes. The end of the guide rod (11) away from the guide block (10) is set on the limit frame (6).

5. The weighing hopper capable of automatic weighing according to claim 1, characterized in that: A controller (15) is installed on one side of the bracket (1). The input end of the controller (15) is electrically connected to the signal output end of the weighing sensor (3), and the output end of the controller (15) is electrically connected to the input end of the cylinder (9).

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