Vacuum buffer tank feeding device

Abstract

The utility model discloses a vacuum buffer tank feeding device which comprises a base, the top of the base is provided with a fixing frame through a pushing component, the top of the fixing frame is fixedly connected with two connecting rods, a material storage box is fixedly connected between the top ends of the two connecting rods, a baffle is fixedly connected in the material storage box, the material storage box is divided into two cavities, and the two cavities are communicated with the baffle. A vacuum pump is fixedly connected to the outer wall of one side of the material storage box, a discharging opening is formed in the bottom of the material storage box, a material guide plate is arranged on the inner wall of the bottom of the material storage box, and a material guide pipe is fixedly communicated with the interior of the discharging opening. Through the use of the vacuum pump and the spiral sheet, the device can uniformly feed materials in a mechanical transmission mode after baiting through air pressure, so that the feeding speed is controllable.

Description

Technical Field

[0001] This utility model relates to the field of buffer tank technology, and in particular to a vacuum buffer tank feeding device. Background Technology

[0002] Vacuum buffer tanks are not directly used to produce end products, but rather serve as key auxiliary equipment in the production process. In the polyurethane production process within the chemical industry, vacuum buffer tanks are important equipment for storing and reacting raw materials.

[0003] A search revealed a vacuum feeding mechanism disclosed in publication number CN 221396106U. When reaction materials are required, existing feeding devices and vacuum buffer tanks are usually connected by a feed pipe, and the feeding speed depends entirely on pressure, making it impossible to uniformly control the feeding speed. In order to better address the above problems, and also to promote the development of industry technology and improve core competitiveness, this application proposes a new composition structure that is different from the existing technology. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies where the feeding speed depends entirely on pressure and cannot be uniformly controlled, and to propose a vacuum buffer tank feeding device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A vacuum buffer tank feeding device includes a base, a fixed frame mounted on the top of the base via a pushing component, two connecting rods fixedly connected to the top of the fixed frame, a storage box fixedly connected between the top ends of the two connecting rods, a baffle fixedly connected inside the storage box dividing the storage box into two cavities, a vacuum pump fixedly connected to one outer wall of the storage box, a discharge port opened at the bottom of the storage box, a guide plate provided on the inner wall of the bottom of the storage box, a guide pipe fixedly connected to the discharge port, two limiting blocks fixedly connected to the top of the fixed frame, a cylinder mounted on the two limiting blocks, the top of the cylinder communicating with the guide pipe, a guide assembly provided inside the cylinder, and the cylinder fixed to the buffer tank body via a detachable connecting assembly.

[0007] As a further embodiment of this utility model, the material guiding assembly includes a motor, which is fixed to the top of the fixing frame by bolts. A connecting shaft is movably connected inside the cylinder, and one end of the motor output shaft is fixed to the connecting shaft. A spiral blade is fixedly connected to the outside of the connecting shaft.

[0008] As a further embodiment of this utility model, the connecting assembly includes a flange, which is fixed to one end of the cylinder by bolts. A connecting pipe is installed on one side of the buffer tank body, and the connecting pipe is fixed to the cylinder by the flange.

[0009] As a further embodiment of this utility model, the pushing component includes an electric push rod, which is fixed to the upper surface of the base by bolts, and the extended end of the electric push rod is fixed to the bottom of the fixing frame.

[0010] As a further embodiment of this utility model, a plurality of guide rods are fixedly connected to the upper surface of the base, and the bottom disc portion of the fixing frame is slidably connected to the guide rods.

[0011] As a further embodiment of this utility model, a conduit is fixedly connected to the upper surface of the base, and a guide rod is located inside the conduit and slidably connected to the conduit.

[0012] As a further embodiment of this utility model, fixing blocks are fixedly connected to both outer walls of the storage box, and a first connecting cover and a second connecting cover are movably connected to the top of the fixing blocks, with the first connecting cover and the second connecting cover covering the open top of the storage box.

[0013] As a further embodiment of this utility model, the first connecting cover is provided with an air hole, and an air valve is provided inside the air hole. The baffle is fixed to the bottom inner wall of the storage box, and a rubber pad is installed at the connection.

[0014] As a further improvement of this utility model, a vacuum pump is fixedly connected to one side of the outer wall of the storage box.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1. This utility model uses an electric push rod to move the fixed frame and the storage box, thereby adjusting the height of the storage box and the fixed frame. This allows the device to be used with buffer tanks of different heights at the same distance between the air inlet and the feed inlet, improving the flexibility of the device.

[0017] 2. By using a vacuum pump and spiral blades, this utility model enables the device to feed materials evenly through mechanical transmission after they are fed by air pressure, making the feeding speed controllable.

[0018] 3. By using the guide tube and guide rod together, the fixed frame is guided, which in turn enables the fixed frame and the components connected to its top to move up and down stably, thus improving the stability of the device. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the front side of a vacuum buffer tank feeding device proposed in this utility model;

[0020] Figure 2 This is a partial cross-sectional view of a vacuum buffer tank feeding device proposed in this utility model;

[0021] Figure 3 This is a partially enlarged structural diagram of a vacuum buffer tank feeding device proposed in this utility model.

[0022] In the diagram: 1. Buffer tank body; 3. Storage bin; 4. First connecting cover; 5. Second connecting cover; 6. Vacuum pump; 7. Motor; 8. Fixing frame; 9. Connecting rod; 10. Guide rod; 11. Base; 12. Electric push rod; 13. Baffle; 14. Fixing block; 15. Guide plate; 16. Flange; 17. Spiral blade; 18. Connecting shaft; 19. Limiting block; 20. Cylinder. Detailed Implementation

[0023] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. Therefore, all other embodiments of this application described herein, and all embodiments obtained by those skilled in the art without creative effort based on the embodiments in this application, should fall within the scope of protection of this application.

[0024] Reference Figures 1-3 A vacuum buffer tank feeding device includes a base 11, a fixed frame 8 is mounted on the top of the base 11 via a pushing component, the pushing component includes an electric push rod 12, the electric push rod 12 is fixed to the upper surface of the base 11 by bolts, and the extended end of the electric push rod 12 is fixed to the bottom of the fixed frame 8.

[0025] Two connecting rods 9 are fixed to the top of the fixed frame 8 by bolts. The storage box 3 is fixed between the top ends of the two connecting rods 9 by bolts. The electric push rod 12 extends, causing the fixed frame 8 to move the storage box 3 upward, so that the height of the storage box 3 and the fixed frame 8 can be adjusted, so that the device can be used for buffer tank 1 bodies of different heights with the same distance between the air inlet and the feed inlet.

[0026] The storage bin 3 is divided into two cavities by a baffle 13 fixed inside by bolts. The outer walls of both sides of the storage bin 3 are fixed with fixing blocks 14 by bolts. The top of the fixing blocks 14 are respectively rotatably connected to the first connecting cover 4 and the second connecting cover 5. The first connecting cover 4 and the second connecting cover 5 seal the top opening of the storage bin 3. The first connecting cover 4 has an air hole and an air valve inside the air hole to prevent the pressure inside the storage bin 3 from being too high.

[0027] A vacuum pump 6 is fixed to one side of the outer wall of the storage bin 3 by bolts. The vacuum pump 6 can perform vacuum extraction inside the storage bin 3.

[0028] In particular, the bottom of the storage box 3 is provided with a discharge port, and the bottom inner wall of the storage box 3 is provided with a guide plate 15, and a guide pipe is fixedly connected to the discharge port.

[0029] The top of the fixed frame 8 is fixed with a motor 7 by bolts. The top of the fixed frame 8 is also fixed with two limit blocks 19 by bolts. A cylinder 20 is installed on the two limit blocks 19, and the top of the cylinder 20 is connected to the guide pipe.

[0030] The cylinder 20 is rotatably connected to a connecting shaft 18, and one end of the output shaft of the motor 7 is fixed to the connecting shaft 18. The outer side of the connecting shaft 18 is fixed with a spiral blade 17 by bolts. The raw material placed in the storage box 3 enters the cylinder 20 through the guide pipe connected to the discharge port along the inclined surface of the guide plate 15. The motor 7 works and uses the spiral blade 17 to feed the material evenly.

[0031] The cylinder 20 is fixed to the buffer tank body 1 by a detachable connecting assembly, which includes a flange 16. The flange 16 is fixed to one end of the cylinder 20 by bolts. The cylinder 20 is sealed to the feed pipe of the buffer tank body 1 through the flange 16. The rotation of the motor 7 causes the connecting shaft 18 to drive the spiral blade 17 to rotate, thereby allowing the fixed raw material in the cylinder 20 to enter the buffer tank body 1.

[0032] In this utility model, it should be noted that multiple guide rods 10 are fixed to the upper surface of the base 11 by bolts, and the bottom disc part of the fixing frame 8 is slidably connected to the guide rods 10. The guide rods 10 can guide the fixing frame 8 so that it can move stably.

[0033] The upper surface of the base 11 is fixed with a conduit by bolts, and the guide rod 10 is located inside the conduit and slidably connected to the conduit. The conduit can guide the guide rod 19.

[0034] The baffle 13 is fixed to the bottom inner wall of the storage box 3, and a rubber gasket is installed at the connection to seal the storage box 3 and the baffle 13.

[0035] Working principle: When it is necessary to add solid raw materials from storage bin 3 into buffer tank body 1, vacuum pump 6 is started. Vacuum pump 6 evacuates air, and solid raw materials placed in storage bin 3 enter the cylinder 20 through the feed port and feed pipe along the inclined surface of guide plate 15. Motor 7 is started, and at the same time, the rotation of motor 7 causes connecting shaft 18 to drive spiral blade 17 to rotate, thereby allowing the fixed raw materials in cylinder 20 to enter buffer tank body 1, thus making the solid raw materials evenly added into buffer tank 1.

[0036] This utility model has been described through the above embodiments. Those skilled in the art will understand that this utility model is not limited to the above embodiments. Many more modifications can be made based on the teachings of this utility model, and all such modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A vacuum buffer tank feeding device, comprising a base (11), wherein a fixing frame (8) is mounted on the top of the base (11) via a pushing component, and two connecting rods (9) are fixedly connected to the top of the fixing frame (8), and a storage box (3) is fixedly connected between the top ends of the two connecting rods (9), characterized in that, A baffle (13) is fixedly connected inside the storage box (3), dividing the storage box (3) into two cavities. A discharge port is opened at the bottom of the storage box (3). A guide plate (15) is provided on the inner wall of the bottom of the storage box (3). A guide pipe is fixedly connected inside the discharge port. Two limiting blocks (19) are fixedly connected to the top of the fixing frame (8). A cylinder (20) is installed on the two limiting blocks (19), and the top of the cylinder (20) is connected to the guide pipe. A guide assembly is provided inside the cylinder (20). The cylinder (20) is fixed to the buffer tank body (1) through a detachable connecting assembly.

2. The vacuum buffer tank feeding device according to claim 1, characterized in that, The material guiding assembly includes a motor (7), which is fixed to the top of the fixing frame (8) by bolts. A connecting shaft (18) is movably connected inside the cylinder (20), and one end of the output shaft of the motor (7) is fixed to the connecting shaft (18). A spiral blade (17) is fixedly connected to the outside of the connecting shaft (18).

3. The vacuum buffer tank feeding device according to claim 1, characterized in that, The connecting assembly includes a flange (16), which is fixed to one end of the cylinder (20) by bolts. A connecting pipe is installed on one side of the buffer tank body (1), and the connecting pipe is fixed to the cylinder (20) by the flange (16).

4. The vacuum buffer tank feeding device according to claim 1, characterized in that, The pushing component includes an electric push rod (12), which is fixed to the upper surface of the base (11) by bolts, and the extended end of the electric push rod (12) is fixed to the bottom of the fixing frame (8).

5. A vacuum buffer tank feeding device according to claim 4, characterized in that, The upper surface of the base (11) is fixedly connected with multiple guide rods (10), and the bottom disc part of the fixing frame (8) is slidably connected with the guide rods (10).

6. The vacuum buffer tank feeding device according to claim 3, characterized in that, The upper surface of the base (11) is fixedly connected to a conduit, and the guide rod (10) is located inside the conduit and is slidably connected to the conduit.

7. The vacuum buffer tank feeding device according to claim 1, characterized in that, The storage box (3) has fixed blocks (14) on both sides of its outer wall. The first connecting cover (4) and the second connecting cover (5) are movably connected to the top of the fixed blocks (14), and the first connecting cover (4) and the second connecting cover (5) cover the open top of the storage box (3).

8. A vacuum buffer tank feeding device according to claim 7, characterized in that, The first connecting cover (4) has an air hole and an air valve inside the air hole. The baffle (13) is fixed to the bottom inner wall of the storage box (3) and a rubber pad is installed at the connection.

9. A vacuum buffer tank feeding device according to claim 1, characterized in that, A vacuum pump (6) is fixedly connected to one side of the outer wall of the storage box (3).

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