Feeding pressure regulating device

Abstract

The utility model discloses a feeding pressure regulating device which comprises a shell, an end cover is detachably installed on the top of the shell, a pressure regulating cavity communicated with an inner cavity of the shell is formed in the top of the shell, a throttling piece is arranged in the pressure regulating cavity, a piston cavity is formed in the bottom of the end cover, and a piston is arranged in the piston cavity. The pressure adjusting structure is arranged at the discharging end connected with equipment, the pressure adjusting device is used for adjusting pressure difference according to different working conditions and requirements, the pressure adjusting structure is arranged at the discharging end connected with the equipment, the pressure adjusting device is arranged at the discharging end of the equipment, the pressure adjusting device is arranged at the discharging end of the equipment, the pressure adjusting device is arranged at the discharging end of the equipment, and the pressure adjusting device is arranged at the discharging end of the equipment. According to the size of polyurethane raw material particles, the suction force of the feeding device is flexibly adjusted, the situation that materials are blocked in the feeding pipe is avoided, the feeding speed and efficiency of processing equipment are improved, and convenience is provided for work and use of a user.

Description

Technical Field

[0001] This utility model relates to the field of polyurethane raw material processing and feeding technology, and in particular to a feeding pressure regulating device. Background Technology

[0002] In material processing, such as the processing of polyurethane raw materials, materials need to be fed into equipment for processing. In addition to feeding via conveyor belt, a suction method can also be used, which uses pressure difference to draw the material into the equipment for processing. Traditional suction feeding devices use a fan rotating inside a pipe to create a pressure difference through rapid airflow to draw the material into the equipment. However, they lack a pressure regulating structure, which makes it impossible to adjust the pressure of the feeding device. This makes it difficult to flexibly adjust the suction force of the device according to actual work needs. Fine particles can be fed normally, but when there is too much material, blockage is likely to occur. Moreover, blockage is more likely to occur when sucking in large particles, which greatly affects the material processing and feeding work and causes inconvenience to users.

[0003] To address the aforementioned problems, this utility model provides improvements. Summary of the Invention

[0004] This utility model proposes a feeding pressure regulating device, which solves the above-mentioned problems existing in the use of the prior art.

[0005] The technical solution of this utility model is implemented as follows: A feeding pressure regulating device includes a housing, an end cover detachably installed on the top of the housing, a pressure regulating cavity communicating with the inner cavity of the housing on the top of the housing, a throttling plate disposed inside the pressure regulating cavity, a piston cavity disposed at the bottom of the end cover, a piston slidably installed inside the piston cavity, the bottom end of the piston being engaged with the inside of the throttling plate, a pin slidably installed above the piston inside the piston cavity, a spring sleeved on the surface of the pin, the end of the spring away from the pin being embedded and fixedly installed on the piston, an adjusting bolt rotatably installed on the top of the pin, the top of the adjusting bolt penetrating to the top of the end cover, the adjusting bolt being threadedly connected to the end cover, a discharge port communicating with the inner cavity of the housing being opened on one side of the housing, and a through hole being opened on one side of the inner cavity of the piston cavity.

[0006] The present invention, as described above, is used for a feeding pressure regulating device. Further, a transfer pipe is detachably installed on one side of the housing, and a sealing ring is sleeved on one side of the surface of the transfer pipe between the housing and the transfer pipe.

[0007] The present invention, as described above, is used for a feeding pressure regulating device, further comprising: a feeding pipe connected to the top of the transfer pipe, and a pressure sensor sleeved on the surface of the feeding pipe.

[0008] The present invention, as described above, is used for a feeding pressure regulating device. Further, a piston ring is fitted onto one end of the piston surface, and a sealing ring is fitted onto the piston surface, with the outer surface of the sealing ring tightly attached to the inner wall of the piston cavity.

[0009] The present invention, as described above, is used for a feeding pressure regulating device. Further, a second sealing ring is embedded in the bottom of the throttling plate. Both the throttling plate and the second sealing ring are located inside the housing and at the outlet port.

[0010] The present invention, as described above, is used for a feeding pressure regulating device. Further, a connecting pipe is connected to one side of the housing, and a sealing ring three is fitted to the top of the housing. The sealing ring three is embedded in the bottom of the end cover.

[0011] The present invention, as described above, is used for a feeding pressure regulating device. Further, a retaining spring is engaged within the inner cavity of the pressure regulating chamber, and the retaining spring is tightly attached to one side of the throttling plate.

[0012] In summary, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model adopts a pressure regulating structure at the discharge end connected to the equipment. The pressure difference can be adjusted according to different working conditions and needs. The suction force of the feeding device can be flexibly adjusted according to the size of the polyurethane raw material particles to avoid material blockage in the feeding pipe, improve the feeding speed and efficiency of the processing equipment, and provide convenience for users' work.

[0014] 2. This utility model incorporates a transfer pipe, a feed pipe, and a pressure sensor. The feed pipe is used to feed materials, which are then fed into the feed pipe, pass through the transfer pipe, and finally exit through the outlet. The pressure sensor detects pressure changes and values ​​within the feed pipe, allowing users to adjust the pressure according to their actual needs, thus providing convenience for their work. The sealing ring is fitted onto the transfer pipe and located between the housing and the transfer pipe, sealing the connection between the transfer pipe and the housing.

[0015] 3. This utility model, through the setting of piston ring and sealing ring 1, the piston ring is recessed and hollow inside. Therefore, when the piston moves down, it will drive the piston ring down, thereby squeezing the air in the piston cavity and generating air pressure change, thus realizing pressure regulation and providing convenience for users. Sealing ring 1 is installed on the piston and is used to seal the gap between the piston surface and the inner wall of the piston cavity, ensuring the sealing performance of the pressure regulating device and providing convenience for users.

[0016] 4. By setting a second sealing ring, which is installed between the throttling plate and the inner wall of the pressure regulating chamber, this utility model can ensure the sealing between the throttling plate and the inner wall of the pressure regulating chamber, ensure the normal operation of the throttling plate, and also ensure the normal operation of the pressure regulating device, thus providing convenience for users.

[0017] 5. This utility model, through the setting of connecting pipe and sealing ring three, the connecting pipe is used to connect to the equipment, and its end is inserted into the corresponding equipment, ensuring the stability and sealing of the feeding structure and providing convenience for users. The sealing ring three is embedded in the end cover, and when the end cover is installed on the housing, the sealing ring three will also be tightly attached to the housing, thus sealing the housing and the end cover, ensuring the sealing of the pressure regulating device and providing convenience for users.

[0018] 6. This utility model uses a retaining ring, which is snapped into the pressure regulating cavity and used to position the throttling plate. This fixes the throttling plate in the pressure regulating cavity, ensuring that the throttling plate can work normally and that the pressure regulating device can work normally, providing convenience for users. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic cross-sectional view of the planar structure of this utility model;

[0022] Figure 3 This is a three-dimensional sectional view of the present invention;

[0023] Figure 4 This is a partial three-dimensional cross-sectional view of the present invention;

[0024] Figure 5 This is a partial three-dimensional exploded view of the present invention;

[0025] Figure 6 This is a three-dimensional cross-sectional view of the shell structure.

[0026] In the diagram: 1. Housing, 2. End cap, 3. Throttling plate, 4. Piston, 5. Ejector pin, 6. Adjusting bolt, 7. Spring, 8. Discharge port, 9. Adaptor pipe, 10. Feed pipe, 11. Pressure sensor, 12. Piston sleeve, 13. Sealing ring one, 14. Sealing ring two, 15. Connecting pipe, 16. Sealing ring three, 17. Through hole, 18. Piston chamber, 19. Snap ring, 20. Pressure regulating chamber, 21. Sealing ring four. Detailed Implementation

[0027] The following will refer to the appendix in the embodiments of this utility model. Figure 1-6 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. Example

[0028] A feeding pressure regulating device includes a housing 1, an end cover 2 detachably mounted on the top of the housing 1, a pressure regulating chamber 20 communicating with the inner cavity of the housing 1 on the top of the housing 1, a throttling plate 3 disposed inside the pressure regulating chamber 20, a piston chamber 18 disposed at the bottom of the end cover 2, a piston 4 slidably mounted inside the piston chamber 18, the bottom end of the piston 4 being engaged with the inside of the throttling plate 3, a ejector pin 5 slidably mounted above the piston 4 inside the piston chamber 18, a spring 7 sleeved on the surface of the ejector pin 5, the end of the spring 7 away from the ejector pin 5 being embedded and fixedly mounted on the piston 4, an adjusting bolt 6 rotatably mounted on the top of the ejector pin 5, the top of the adjusting bolt 6 penetrating to the top of the end cover 2, the adjusting bolt 6 being threadedly connected to the end cover 2, a discharge port 8 communicating with the inner cavity of the housing 1 on one side, and a through hole 17 on one side of the inner cavity of the piston chamber 18.

[0029] The specific usage process is as follows: During operation, the material first enters from the top of the feed pipe 10, which is indicated by... Figure 2As indicated by the marked arrow, the material then passes through the transfer pipe 9, enters the housing 1, and finally exits from the discharge port 8 into the processing equipment for processing. It should be noted that airflow already exists within the feed pipe 10, achieved through an external suction device. For example, a fan can be connected to the feed pipe 10, using the fan to create high-speed airflow within the feed pipe 10, generating suction to attract the material. After entering the housing 1, the material first flows upward into the pressure regulating chamber 20, where it is blown out by the high-pressure air. It then passes through the throttling plate 3 and enters the discharge port 8, finally exiting from the discharge port 8 to complete the discharge process. The pressure sensor 11 is responsible for detecting the pressure within the feed pipe 10. The feedback is then relayed to the staff, who can adjust the pressure and differential pressure according to the actual situation, thereby adjusting the suction force of the feeding device to ensure smooth material feeding. During pressure adjustment, the user rotates the adjusting bolt 6, which is threadedly connected to the end cover 2. Therefore, the adjusting bolt 6 can move on the end cover 2 while rotating, and its position determines the location. When the adjusting bolt 6 moves downwards, the ejector pin 5 also moves downwards within the piston chamber 18, compressing the spring 7. The spring 7 deforms under pressure, but it also exerts a counterforce on the piston 4, pushing it downwards. The bottom of the piston 4 engages with the throttling device. Inside the throttling plate 3, when the airflow rises within the housing 1, it first pushes the piston 4 upwards. The piston 4 then compresses the spring 7 in the opposite direction. At this time, the opening between the piston 4 and the throttling plate 3 opens, and the material follows through this opening into the discharge port 8 to be discharged. Specifically, the working principle of this pressure regulating structure is mainly achieved through throttling and pressure reduction. The high-pressure medium is filled into a relatively large cavity, namely the pressure regulating cavity 20, through a small orifice. The two sides of the diaphragm or piston 4, which are the two sides of the throttling plate 3 or piston 4, are the discharge port 8 on one side and the manually applied pressure on the other. The adjusting bolt 6, which controls the size of the small orifice, is connected to the piston 4. In this way, as long as a fixed pressure is applied, the pressure in the discharge port will always be equal to that pressure. The user can adjust the pressure by rotating the adjusting bolt 6. The feed pipe 10 is used to feed materials. During feeding, the material is fed into the feed pipe 10, passes through the transfer pipe 9, and is finally discharged through the discharge port 8. The pressure sensor 11 can detect the pressure change and pressure value in the feed pipe 10, so that the user can adjust the pressure according to the actual use needs, providing convenience for the user's work. The sealing ring 4 21 is sleeved on the transfer pipe 9 and is located between the housing 1 and the transfer pipe 9, which plays a sealing role in the connection between the transfer pipe 9 and the housing 1. The piston sleeve 12 is concave and hollow inside. Therefore, when the piston 4 moves down, it will drive the piston sleeve 12 to move down, thereby squeezing the air in the piston chamber 18 to generate air pressure change, thereby realizing the pressure adjustment.To facilitate user operation, sealing ring 13 is installed on piston 4 to seal the gap between piston 4 surface and piston chamber 18 inner wall, ensuring the sealing performance of the pressure regulating device. Sealing ring 14 is installed between throttling plate 3 and pressure regulating chamber 20 inner wall, ensuring the sealing performance between throttling plate 3 and pressure regulating chamber 20, guaranteeing the normal operation of throttling plate 3 and the pressure regulating device. Connecting pipe 15 is used to connect to the equipment, and its end is inserted into the corresponding equipment to ensure the feeding structure... The stability and sealing performance of the device provide convenience for users. Sealing ring 3 (16) is embedded in the end cover 2, and when the end cover 2 is installed on the housing 1, sealing ring 3 (16) also fits tightly against the housing 1, thus sealing the housing 1 and end cover 2 and ensuring the sealing performance of the pressure regulating device. The retaining ring 19 is snapped into the pressure regulating chamber 20 and is used to position the throttling plate 3. This fixes the throttling plate 3 within the pressure regulating chamber 20, ensuring its normal operation and that of the pressure regulating device, thus providing convenience for users.

[0030] Therefore, a pressure regulating structure is installed at the discharge end connected to the equipment. The pressure difference is adjusted according to different working conditions and needs. The suction force of the feeding device is flexibly adjusted according to the size of the polyurethane raw material particles to avoid material blockage in the feeding pipe, thereby improving the feeding speed and efficiency of the processing equipment and providing convenience for users.

[0031] A transfer tube 9 is detachably installed on one side of the housing 1. A sealing ring 21 is sleeved on one side of the surface of the transfer tube 9 between the housing 1 and the transfer tube 9. A feed pipe 10 is connected to the top of the transfer tube 9. A pressure sensor 11 is sleeved on the surface of the feed pipe 10.

[0032] Specifically, the adapter pipe 9, feed pipe 10, and pressure sensor 11 are configured such that the feed pipe 10 is used to feed materials. During feeding, the materials are fed into the feed pipe 10, pass through the adapter pipe 9, and are finally discharged through the discharge port 8. The pressure sensor 11 can detect the pressure changes and pressure values ​​inside the feed pipe 10, thereby facilitating users to adjust the pressure according to actual usage needs and providing convenience for users' work. The sealing ring 21 is sleeved on the adapter pipe 9 and located between the housing 1 and the adapter pipe 9, which plays a sealing role in the connection between the adapter pipe 9 and the housing 1.

[0033] A piston ring 12 is fitted onto one end of the surface of the piston 4, and a sealing ring 13 is fitted onto the surface of the piston 4. The outer surface of the sealing ring 13 is in close contact with the inner wall of the piston cavity 18.

[0034] Specifically, the piston ring 12 and the sealing ring 13 are designed such that the piston ring 12 is recessed and hollow inside. Therefore, when the piston 4 moves down, it will drive the piston ring 12 down, thereby compressing the air in the piston chamber 18 and generating a pressure change, thus realizing pressure regulation and providing convenience for users. The sealing ring 13 is installed on the piston 4 and is used to seal the gap between the surface of the piston 4 and the inner wall of the piston chamber 18, ensuring the sealing performance of the pressure regulating device and providing convenience for users.

[0035] A sealing ring 2 14 is embedded in the bottom of the throttling plate 3. Both the throttling plate 3 and the sealing ring 2 14 are located inside the housing 1 and at the port of the discharge port 8.

[0036] Specifically, the sealing ring 2 14 is installed between the throttling plate 3 and the inner wall of the pressure regulating chamber 20. This ensures the sealing between the throttling plate 3 and the inner wall of the pressure regulating chamber 20, guarantees the normal operation of the throttling plate 3, and also ensures the normal operation of the pressure regulating device, providing convenience for users.

[0037] A connecting pipe 15 is connected to one side of the housing 1, and a sealing ring 3 16 is fitted to the top of the housing 1. The sealing ring 3 16 is embedded in the bottom of the end cover 2.

[0038] Specifically, the connecting pipe 15 and the sealing ring 16 are designed to connect to the equipment, with its end inserted into the corresponding equipment to ensure the stability and sealing of the feeding structure, providing convenience for users. The sealing ring 16 is embedded in the end cover 2, and when the end cover 2 is installed on the housing 1, the sealing ring 16 will also be tightly attached to the housing 1, thus sealing the housing 1 and the end cover 2, ensuring the sealing of the pressure regulating device and providing convenience for users.

[0039] The inner cavity of the pressure regulating chamber 20 is fitted with a retaining spring 19, which is tightly attached to one side of the throttling plate 3.

[0040] Specifically, the retaining ring 19 is snapped into the pressure regulating cavity 20 and is used to position the throttling plate 3. This fixes the throttling plate 3 in the pressure regulating cavity 20, ensuring that the throttling plate 3 can work normally and that the pressure regulating device can work normally, providing convenience for the user's work.

[0041] It should be noted that the functions to be achieved by each hardware component in this utility model are supported by a large number of mature technologies and belong to the prior art. The essence of this utility model is to optimize and combine existing hardware and its connection methods for specific application scenarios to meet the adaptation requirements of specific application scenarios and solve the problems raised in the background technology (without involving improvements to the internal software of the hardware).

[0042] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. Feed pressure regulating device comprising a housing (1), characterized in that: The top of the shell (1) is detachably installed with an end cover (2), the top of the shell (1) is provided with a pressure regulating cavity (20) which is communicated with the inner cavity of the shell (1), the inside of the pressure regulating cavity (20) is provided with a throttle piece (3), the bottom of the end cover (2) is provided with a piston cavity (18), the inside of the piston cavity (18) is slidably installed with a piston (4), the bottom end of the piston (4) is clamped into the inside of the throttle piece (3), the inside of the piston cavity (18) is slidably installed with a thimble (5) which is above the piston (4), the surface of the thimble (5) is sleeved with a spring (7), one end of the spring (7) which is away from the thimble (5) is embeddedly and fixedly installed on the piston (4), the top of the thimble (5) is rotatably installed with an adjusting bolt (6), the top of the adjusting bolt (6) penetrates to the top of the end cover (2), the adjusting bolt (6) is in threaded connection with the end cover (2), one side of the shell (1) is provided with a discharge port (8) which is communicated with the inner cavity of the shell (1), one side of the inner cavity of the piston cavity (18) is provided with a through hole (17).

2. A feed pressure regulating device according to claim 1, characterized in that: The side of the shell (1) is detachably installed with an adapter pipe (9), one side of the surface of the adapter pipe (9) is sleeved with a sealing ring four (21) which is between the shell (1) and the adapter pipe (9).

3. A feed pressure regulating device according to claim 2, wherein: The top of the adapter pipe (9) is communicated with a feeding pipe (10), the surface of the feeding pipe (10) is sleeved with a pressure sensor (11).

4. A feed pressure regulating device according to claim 3, wherein: One end of the surface of the piston (4) is sleeved with a piston sleeve ring (12), the surface of the piston (4) is sleeved with a sealing ring one (13), the outer surface of the sealing ring one (13) is tightly attached to the inner wall of the piston cavity (18).

5. A feed pressure regulating device according to claim 4, characterised in that: The bottom of the throttle piece (3) is embeddedly installed with a sealing ring two (14), the throttle piece (3) and the sealing ring two (14) are both located inside the shell (1) and are at the port of the discharge port (8).

6. A feed pressure regulating device according to claim 5, wherein: One side of the shell (1) is communicated with a connecting pipe (15), the top of the shell (1) is abuttedly provided with a sealing ring three (16), the sealing ring three (16) is embeddedly installed at the bottom of the end cover (2).

7. A feed pressure regulating device according to claim 6, characterised in that: The inner cavity of the pressure regulating cavity (20) is clamped with a clamping spring (19), the clamping spring (19) is tightly attached to one side of the throttle piece (3).

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