Weighing stock bin

Abstract

The utility model discloses a weighing stock bin which comprises a stock bin assembly, a lifting seat and a base, the base is fixedly arranged, a weighing sensor is installed on the base, the lifting seat comprises a supporting frame and a plurality of air cushion springs located at the bottom of the supporting frame, the supporting frame is connected with the base in a sliding mode, and the bottoms of the air cushion springs are located on the weighing sensor. The stock bin assembly can be placed on the supporting frame. According to the weighing stock bin, the weighing sensor is fixed on the base and does not need to move frequently along with the stock bin assembly, so that the installation reference of the weighing sensor is kept consistent, the measurement precision of the weighing sensor is prevented from being reduced, and the air cushion spring is connected with the stock bin assembly and the weighing sensor, so that the measurement precision is improved. The height of the stock bin assembly can be adjusted through the air cushion spring, the stock bin assembly can be prevented from making contact with and colliding with the weighing sensor, and the measuring stability of the weighing sensor is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of material conveying technology, and in particular to a weighing hopper. Background Technology

[0002] The batching silo needs to have a weighing function. During the material discharge process, the weight of the discharged material is measured according to the principle of reduction weighing. Traditional batching silos only weigh the silo or the material cylinder inside the silo. This requires the silo to have a floating storage structure (such as a material cylinder). The existence of a floating structure will reduce the sealing effect and pose a risk of material leakage. Moreover, after the batching is completed, the silo needs to be moved. The weighing sensor is often in a dynamic state, which has a great impact on the measurement accuracy of the weighing sensor and can easily lead to a decrease in weighing accuracy.

[0003] Secondly, in traditional conveying systems, the batching silo is just a cone-shaped silo that cannot be manually moved. It needs to be transported to the docking equipment by forklifts or AGVs. This requires reserving space for the AGVs in the height and sides of the batching silo, resulting in a large overall system space occupation and the need for additional AGVs, which increases the operating cost and makes the operation more complicated. Utility Model Content

[0004] In order to solve the technical problems of material leakage risk and easy reduction of weighing accuracy in the existing material batching silos, this utility model provides a weighing silo to solve the above problems.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a weighing hopper, including a hopper assembly, a lifting seat and a base, the base being fixedly installed, a weighing sensor being installed on the base, the lifting seat including a support frame and a plurality of air cushion springs located at the bottom of the support frame, the support frame being slidably connected to the base, and the bottom of the air cushion springs being located on the weighing sensor; the hopper assembly can be placed on the support frame.

[0006] In an optional embodiment of this utility model, the hopper assembly includes a frame, a material hopper fixed to the frame, and support legs, and the support frame is fixed with a seat plate that supports the support legs.

[0007] In an optional embodiment of this utility model, the lifting seat further includes a base plate and an upper cover connected to a support frame. The top of the air cushion spring is fixed to the upper cover, the base plate is slidably connected to the upper cover, the base plate is fixed to the weighing sensor, and the air cushion spring is located between the upper cover and the base plate.

[0008] In an optional embodiment of this utility model, the upper cover has a side plate that covers the outside of the air cushion spring.

[0009] In an optional embodiment of this utility model, the hopper assembly further includes several rollers fixed to the bottom of the frame, and the lower surface of the support leg is higher than the lower surface of the rollers.

[0010] In an optional embodiment of this utility model, along the rolling direction of the roller, two oppositely arranged guide plates are provided on one side of the lifting seat, and the hopper assembly enters the lifting seat through the channel between the two guide plates.

[0011] In an optional embodiment of this utility model, a limiting plate is provided on the other side of the lifting seat along the rolling direction of the roller. When the hopper assembly can be placed on the support frame, the frame contacts the limiting plate.

[0012] In an optional embodiment of this utility model, the seat plate and the support leg are arranged in a one-to-one correspondence, and each seat plate has a small baffle on its side. When the lifting seat is in the lowered state, the lower surface of the support leg is higher than the upper surface of the small baffle.

[0013] In an optional embodiment of this utility model, a wear-resistant pad is provided at the bottom of the support leg.

[0014] The beneficial effects of this utility model are:

[0015] (1) The weighing hopper described in this utility model fixes the weighing sensor on the base, so that it does not need to move frequently with the hopper assembly, thereby keeping the installation reference of the weighing sensor consistent, avoiding the reduction of the weighing sensor measurement accuracy, and connecting the hopper assembly and the weighing sensor through an air cushion spring. The air cushion spring can adjust the height of the hopper assembly and also prevent the hopper assembly from contacting and colliding with the weighing sensor, ensuring the stability of the weighing sensor measurement.

[0016] (2) The present invention has rollers at the bottom of the material hopper, so that the hopper assembly can be pushed away directly without the need for a trolley to assist in moving it, which saves space and reduces costs; at the same time, a lifting seat is provided to lift the hopper assembly, so that the hopper assembly is lifted as a whole. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a perspective view of a specific embodiment of the weighing hopper described in this utility model;

[0019] Figure 2 yes Figure 1 Enlarged view of point a;

[0020] Figure 3 yes Figure 1 Enlarged view of point b;

[0021] Figure 4 This is a front view of a specific embodiment of the weighing hopper described in this utility model;

[0022] Figure 5 yes Figure 4 A sectional view along line AA.

[0023] In the diagram, 1. hopper assembly, 101. frame, 102. material receiving hopper, 103. roller, 104. support leg, 2. lifting seat, 201. seat plate, 202. support frame, 203. air cushion spring, 204. base plate, 205. upper cover, 2051. side plate, 3. wear-resistant pad, 4. small stop, 5. guide plate, 6. limit plate, 7. base, 8. weighing sensor. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0025] Example 1

[0026] like Figures 1-4 As shown, a weighing hopper includes a hopper assembly 1, a lifting seat 2, and a base 7. The base 7 is fixedly installed, and a weighing sensor 8 is installed on the base 7. The lifting seat 2 includes a support frame 202 and a plurality of air cushion springs 203 located at the bottom of the support frame 202. The support frame 202 is slidably connected to the base 7, and the bottom of the air cushion springs 203 is located on the weighing sensor 8. The hopper assembly 1 can be placed on the support frame 202.

[0027] The weighing hopper described in this invention is used for precise material dispensing. The hopper assembly 1 is used to store materials, and the base 7 is set at the material dispensing position. When the hopper assembly 1 is placed on the support frame 202, the equipment below the hopper assembly 1 is for receiving materials. The air cushion spring 203 can lift the hopper assembly 1 to a suitable height, thus accommodating hopper assemblies 1 of different heights and sizes, and preventing hard collisions between the hopper assembly 1 and the weighing sensor 8. When the hopper assembly 1 is placed on the support frame 202, the weight of the hopper assembly 1 and the lifting seat 2 is entirely borne by the weighing sensor 8. When dispensing materials from the hopper assembly 1, the weighing sensor 8 can calculate the dispensing amount based on the weight change. Since the weighing sensor 8 is fixed on the base 7, it is easy to calibrate during installation and does not need to move with the hopper assembly 1 during use, avoiding wear and tear on the weighing sensor 8.

[0028] The hopper assembly 1 may include, but is not limited to, a frame 101 and a feeding hopper 102 and a support leg 104 fixed to the frame 101. The support frame 202 is fixed with a seat plate 201 that supports the support leg 104. The support leg 104 is located below the feeding hopper 102. When the support leg 104 is placed on the seat plate 201, the hopper assembly 1 is supported as a whole.

[0029] The seat plate 201 and the support leg 104 are configured in a one-to-one correspondence, such as... Figure 1 and Figure 4 As shown, the hopper assembly 1 in this embodiment is provided with four support legs 104, and the lifting seat 2 is also provided with four seat plates 201.

[0030] The following structure can be used for the installation of the air cushion spring 203:

[0031] like Figure 2 As shown, the lifting seat 2 also includes a base plate 204 and an upper cover 205 connected to the support frame 202. The top of the air cushion spring 203 is fixed to the upper cover 205, and the base plate 204 is slidably connected to the upper cover 205. The base plate 204 is fixed to the load cell 8, and the air cushion spring 203 is located between the upper cover 205 and the base plate 204. When the air cushion spring 203 inflates, the upper cover 205 is lifted away from the base plate 204 by the air cushion spring 203; conversely, when the air cushion spring 203 deflates, the distance between the upper cover 205 and the base plate 204 decreases. The upper cover 205 and the base plate 204 can be connected by bolts, which serve as guides. In a further design, to protect the air cushion spring 203, the upper cover 205 is preferably provided with a side plate 2051 covering the outside of the air cushion spring 203.

[0032] In a preferred embodiment, such as Figure 3 As shown, the bottom of the support leg 104 is provided with a wear-resistant pad 3, which can prevent the support leg 104 from slipping on the seat plate 201.

[0033] Example 2

[0034] Based on Example 1, such as Figure 1 and Figure 4As shown, the hopper assembly 1 also includes several rollers 103 fixed to the bottom of the frame 101, and the lower surface of the support leg 104 is higher than the lower surface of the roller 103. At this time, the hopper assembly 1 can move under the drive of the rollers 103. Since the lower surface of the support leg 104 is higher than the lower surface of the roller 103, when the roller 103 is placed on the ground, the support leg 104 does not contact the ground. Before feeding, the hopper assembly 1 can be pushed directly to the lifting seat 2. At this time, the support leg 104 is exactly on the seat plate 201. By lifting the seat plate 201, the hopper assembly 1 is lifted upward as a whole until the roller 103 leaves the ground. At this time, feeding can be carried out, and the weighing sensor 8 monitors the weight change in real time. After feeding is completed, the seat plate 201 is lowered so that the roller 103 returns to the ground. At this time, the hopper assembly 1 can be pushed outward.

[0035] In a preferred embodiment, such as Figure 3 As shown, each seat plate 201 has a small baffle 4 on its side, which protects the support leg 104 placed on the seat plate 201. When the lifting seat 2 is in the lowered state, the lower surface of the support leg 104 is higher than the upper surface of the small baffle 4, so that the small baffle 4 will not obstruct the support leg 104 when it is pushed in or out.

[0036] Example 3

[0037] Based on Embodiment 2, in order to ensure that the hopper assembly 1 moves accurately onto the lifting seat 2, this embodiment sets up the following limiting structure: (e.g.) Figure 1 As shown, along the rolling direction of the roller 103, two opposing guide plates 5 are provided on one side of the lifting seat 2. The hopper assembly 1 enters the lifting seat 2 through the channel between the two guide plates 5. The guide plates 5 guide the movement path of the hopper assembly 1, ensuring that the hopper assembly 1 accurately reaches the lifting seat 2. Compared with the guide rail structure, this embodiment does not require the roller 103 to cooperate with the guide plate 5; the guide plate 5 only needs to block the hopper assembly 1 from the side.

[0038] To avoid excessive movement of hopper component 1, further design considerations include... Figure 4 As shown, along the rolling direction of the roller 103, a limiting plate 6 is provided on the other side of the lifting seat 2. When the hopper assembly 1 can be placed on the support frame 202, the frame 101 contacts the limiting plate 6. Figure 5 As shown, roller 103 moves in the front-to-back direction. Guide plate 5 is located behind the lifting seat 2, and limiting plate 6 is located in front of the lifting seat 2. The hopper assembly 1 is pushed into the lifting seat 2 from back to front under the guidance of guide plate 5 and is stopped by limiting plate 6. After the material is discharged, the hopper assembly 1 is pushed out from front to back. Wear-resistant pads 3 can also be provided on the parts of guide plate 5 and limiting plate 6 that contact the hopper assembly 1.

[0039] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and 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. Therefore, they should not be construed as limitations on this utility model.

[0040] In this specification, the illustrative expressions of the terms do not necessarily refer to the same embodiments. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments.

[0041] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A weighing silo, characterized in that: The assembly includes a hopper assembly (1), a lifting seat (2), and a base (7). The base (7) is fixedly installed, and a weighing sensor (8) is installed on the base (7). The lifting seat (2) includes a support frame (202) and several air cushion springs (203) located at the bottom of the support frame (202). The support frame (202) is slidably connected to the base (7), and the bottom of the air cushion springs (203) is located on the weighing sensor (8). The hopper assembly (1) can be placed on the support frame (202).

2. The weighing silo according to claim 1, characterized in that: The hopper assembly (1) includes a frame (101) and a feeding hopper (102) and a support leg (104) fixed to the frame (101). The support frame (202) is fixed with a seat plate (201) that supports the support leg (104).

3. The weighing silo according to claim 1, characterized in that: The lifting seat (2) also includes a base plate (204) and an upper cover (205) connected to the support frame (202). The top of the air cushion spring (203) is fixed to the upper cover (205). The base plate (204) is slidably connected to the upper cover (205). The base plate (204) is fixed on the weighing sensor (8). The air cushion spring (203) is located between the upper cover (205) and the base plate (204).

4. The weighing silo according to claim 3, characterized in that: The upper cover (205) has a side plate (2051) covering the outside of the air cushion spring (203).

5. The weighing silo according to claim 2, characterized in that: The hopper assembly (1) also includes several rollers (103) fixed to the bottom of the frame (101), and the lower surface of the support leg (104) is higher than the lower surface of the roller (103).

6. The weighing silo according to claim 5, characterized in that: Along the rolling direction of the roller (103), the lifting seat (2) is provided with two oppositely arranged guide plates (5), and the hopper assembly (1) enters the lifting seat (2) through the channel between the two guide plates (5).

7. The weighing silo according to claim 6, characterized in that: Along the rolling direction of the roller (103), a limiting plate (6) is provided on the other side of the lifting seat (2). When the hopper assembly (1) can be placed on the support frame (202), the frame (101) contacts the limiting plate (6).

8. The weighing silo according to claim 2, characterized in that: The seat plate (201) and the support leg (104) are arranged in a one-to-one correspondence. Each seat plate (201) has a small baffle (4) on its side. When the lifting seat (2) is in the lowering state, the lower surface of the support leg (104) is higher than the upper surface of the small baffle (4).

9. The weighing silo according to claim 2, characterized in that: The bottom of the support leg (104) is provided with a wear-resistant pad (3).

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