A first-in-first-out pressure-maintaining feeding device

Abstract

The utility model discloses an advanced first-out pressure maintaining feeding device, which comprises a rack, a driving assembly arranged on the rack, a storage cylinder connected with the driving assembly, the driving assembly driving the storage cylinder to move up and down, the storage cylinder being provided with a discharge port, a feeding assembly arranged on the rack, the feeding assembly being provided with a feeding port, the feeding assembly comprising a distributing disc arranged in the storage cylinder, the distributing disc being in sealing movable cooperation with the inner wall of the storage cylinder, the distributing disc being provided with a distributing port in communication with the feeding port, and the distributing port being located above the discharge port. The advanced first-out pressure maintaining feeding device can ensure that the material first entering the storage cylinder is output from the discharge port, avoid the material from being solidified due to staying in the storage cylinder for too long, and effectively ensure the quality of the output material.

Description

Technical Field

[0001] This utility model relates to the field of vacuum casting technology, and more specifically, to a first-in-first-out pressure-holding feeding device. Background Technology

[0002] In the field of vacuum casting, a pressure-holding feeding device is typically used to stabilize the material (often a mixture of resin and solidifier). Existing pressure-holding feeding devices generally employ a linear feeding method from below the pressure chamber. The storage tank has an inlet and an outlet at its lower end. Material enters the storage tank through the inlet and accumulates upwards to fill the pressure chamber. Then, according to system commands, the material is discharged from the outlet. This can result in material that enters the storage tank first being discharged last. Since the material is mostly a mixture of resin and solidifier, prolonged storage can cause solidification. This feeding method often leads to solidification of the material at the top of the storage tank.

[0003] In view of this, the inventors of this application have invented a first-in-first-out pressure-maintaining feeding device. Utility Model Content

[0004] The purpose of this invention is to provide a first-in-first-out pressure-holding feeding device to solve the problem of the aforementioned materials solidifying due to prolonged retention.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a first-in-first-out pressure-maintaining feeding device, comprising:

[0006] frame;

[0007] The drive assembly is located on the rack;

[0008] A storage cylinder is connected to the drive assembly, which drives the storage cylinder to move up and down. The storage cylinder is provided with a discharge port.

[0009] A feeding assembly is provided on the frame. The feeding assembly has a feeding port and includes a distributing plate located inside the storage cylinder. The distributing plate is sealed and movable with the inner wall of the storage cylinder. The distributing plate has a distributing port that communicates with the feeding port and is located above the discharge port.

[0010] Material enters the feeding assembly from the feed inlet and flows out to the storage cylinder through the distribution port. The driving assembly drives the storage cylinder to move upward relative to the distribution plate, thereby causing the material in the storage cylinder to flow out from the discharge port.

[0011] Furthermore, the material distribution tray is provided with a material distribution cavity and a material distribution channel. The material distribution cavity is connected to the material inlet, and one end of the material distribution channel is connected to the material distribution cavity and the other end is connected to the material distribution inlet.

[0012] Furthermore, the material dispensing chamber is located in the middle of the material dispensing tray, the material dispensing channels are evenly arranged along the periphery of the material dispensing chamber, and the material dispensing port is located at the bottom of the material dispensing tray.

[0013] Furthermore, the feeding assembly includes a feeding column, the top end of which is fixed to the frame, and the bottom end extends into the cylinder and is connected to the distributing plate. The feeding port is located on the feeding column, and the feeding column has a feeding channel that communicates with both the feeding port and the distributing port.

[0014] Furthermore, the top of the storage cylinder is provided with a first dustproof plate, and the first dustproof plate is provided with a clearance hole for the feed column to extend into. The diameter of the clearance hole is larger than the diameter of the feed column. The feed column is fixed with a second dustproof plate, and the diameter of the second dustproof plate is larger than the diameter of the clearance hole.

[0015] Furthermore, the drive assembly includes a motor and a drive shaft, one end of which is connected to the output shaft of the motor, and the other end of which is connected to the storage cylinder.

[0016] Furthermore, the frame is provided with a vertically arranged guide hole, and the drive shaft passes through the guide hole and is movably engaged with the guide hole.

[0017] Furthermore, the number of drive shafts is two.

[0018] Furthermore, the bottom wall of the inner cavity of the storage cylinder and the bottom end face of the distribution plate are both conical surfaces, and the discharge port is located at the middle of the bottom end of the storage cylinder.

[0019] Furthermore, the bottom wall of the storage cylinder is a detachable structure.

[0020] By adopting the above technical solution, this utility model has the following advantages compared with the prior art:

[0021] This utility model of a first-in-first-out pressure-holding feeding device ensures that the material that enters the storage cylinder first is output from the outlet first, avoiding the material from staying in the storage cylinder for too long and solidifying, thus effectively ensuring the quality of the output material. Attached Figure Description

[0022] Figure 1 This is a perspective view of the pressure-holding and feeding device according to an embodiment of the present utility model;

[0023] Figure 2 This is a schematic diagram showing the cooperation between the feeding assembly and the storage cylinder in an embodiment of this utility model;

[0024] Figure 3 This is a partial sectional view of the pressure-holding and feeding device according to an embodiment of the present utility model;

[0025] Figure 4 This is a bottom view of the material distribution tray in an embodiment of the present utility model;

[0026] Figure 5 This is a schematic diagram of the internal structure of the material distribution tray in an embodiment of this utility model.

[0027] Explanation of reference numerals in the attached figures:

[0028] 10-Frame, 11-Guide hole,

[0029] 20-Drive assembly, 21-Motor, 22-Drive shaft

[0030] 30 - Storage cylinder, 31 - Discharge port

[0031] 40 - Feeding assembly

[0032] 41-Feed column, 411-Feed inlet, 412-Feed channel

[0033] 42-Distribution tray, 421-Distribution port, 422-Distribution chamber, 423-Distribution channel.

[0034] 50 - First dustproof plate, 51 - Clearance hole

[0035] 60 - Second dustproof plate. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0037] It should be noted that in this utility model, the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", and "outer" are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element of this utility model must have a specific orientation, and therefore should not be construed as a limitation of this utility model. Example

[0038] Cooperate Figures 1 to 5 As shown, this utility model discloses a first-in-first-out (FIFO) pressure-holding feeding device, which is mainly used for pressure-holding feeding in the field of vacuum casting. The FIFO means that the material that enters the storage cylinder 30 first is output from the storage cylinder 30 first, avoiding the situation where the material that enters first is output later, thereby avoiding the material from staying in the storage cylinder 30 for a long time and solidifying.

[0039] Cooperate Figures 1 to 5 As shown, a first-in-first-out (FIFO) pressure-maintaining feeding device includes:

[0040] Rack 10;

[0041] Drive assembly 20 is disposed on the frame 10;

[0042] The storage cylinder 30 is connected to the drive assembly 20. The drive assembly 20 drives the storage cylinder 30 to move up and down. The storage cylinder 30 is provided with a discharge port 31.

[0043] A feeding assembly 40 is provided on the frame 10. The feeding assembly 40 is provided with a feeding port 411. The feeding assembly 40 includes a distributing plate 42 located inside the storage cylinder 30. The distributing plate 42 is sealed and movable with the inner wall of the storage cylinder 30. The distributing plate 42 is provided with a distributing port 421 communicating with the feeding port 411. The distributing port 421 is located above the discharge port 31.

[0044] Material enters the feeding assembly 40 from the feed inlet 411 and flows out to the storage cylinder 30 through the distribution port 421. The driving assembly 20 drives the storage cylinder 30 to move upward relative to the distribution plate 42, thereby causing the material in the storage cylinder 30 to flow out from the discharge port 31.

[0045] The material distribution plate 42 and the inner wall of the storage cylinder 30 are sealed together to achieve a sealed and pressure-maintaining space between the material distribution plate 42 and the storage cylinder 30. The material enters the storage cylinder 30 from the material distribution port 421 of the upper material distribution plate 42 and is then discharged from the storage cylinder 30 from the lower discharge port 31, realizing the first-in-first-out (the material that enters the storage cylinder 30 first is discharged from the discharge port 31 first), effectively preventing the material from staying in the storage cylinder 30 for too long and solidifying.

[0046] Cooperate Figures 2 to 3 As shown, the feeding assembly 40 is fixed to the frame 10, the feed inlet 411 is located at the upper part of the feeding assembly 40, and the distributing disc 42 extends into the storage cylinder 30 from the upper end of the storage cylinder 30. Specifically, the feeding assembly 40 includes a feeding column 41, the top end of which is fixed to the frame 10, and the bottom end extends into the cylinder body and connects to the distributing disc 42. The feed inlet 411 is located on the feeding column 41, and the feeding column 41 has a feeding channel 412 that communicates with both the feed inlet 411 and the distributing disc 421. The top end of the feeding column 41 is locked and fixed to the frame 10, and the bottom end extends into the storage cylinder 30 from the top end of the storage cylinder 30. The distributing disc 42 is located at the bottom end of the feeding column 41. The feed inlet 411 is located on the top side of the feed column 41, and the feed channel 412 extends along the axial direction of the feed column 41. Its top end is connected to the feed inlet 411, and its bottom end is connected to the distribution port 421 of the distribution plate 42. The material flows into the storage cylinder 30 along the feed inlet 411-feed channel 412-distribution port 421.

[0047] To prevent dust and other debris from entering the storage cylinder 30 through the top opening, a dustproof structure is provided corresponding to the top opening of the storage cylinder 30. Specifically, the top of the storage cylinder 30 is provided with a first dustproof plate 50, and the first dustproof plate 50 has a clearance hole 51 for the feed column 41 to extend into. The diameter of the clearance hole 51 is larger than the diameter of the feed column 41. The feed column 41 is fixed with a second dustproof plate 60, and the diameter of the second dustproof plate 60 is larger than the diameter of the clearance hole 51. To prevent the outer wall of the feed column 41 from rubbing against the first dustproof plate 50 when the drive assembly 20 drives the storage cylinder 30 to move, the diameter of the clearance hole 51 is designed to be much larger than the diameter of the feed column 41. To achieve dust prevention between the clearance hole 51 and the feed column 41, a second dustproof plate 60 is provided on the feed column 41. Specifically, the second dustproof plate 60 is located below the first dustproof plate 50 (within the storage cylinder 30), and the diameter of the second dustproof plate 60 is larger than the diameter of the clearance hole 51 to ensure the dustproof effect.

[0048] Cooperate Figures 3 to 5 As shown, the distributing disc 42 is located at the bottom of the feed column 41 and inside the storage cylinder 30. A sealing ring is provided between the outer periphery of the distributing disc 42 and the inner wall of the storage cylinder 30 to achieve a sealing fit. The bottom surface of the distributing disc 42 and the storage cylinder 30 enclose a pressure-holding cavity. The distributing disc 42 and the storage cylinder 30 are in a movable fit. The driving component 20 can drive the storage cylinder 30 to move up and down relative to the distributing disc 42. The specific design of the distributing disc 42 is as follows: The distributing disc 42 is provided with a distributing cavity 422 and a distributing channel 423. The distributing cavity 422 is connected to the feed inlet 411. One end of the distributing channel 423 is connected to the distributing cavity 422, and the other end is connected to the distributing inlet 421. The material distribution chamber 422 is located inside the material distribution plate 42 and is connected to the feeding channel 412. There are multiple material distribution ports 421. The material distribution channels 423 are set one-to-one with the material distribution ports 421. One end of the material distribution channel 423 is connected to the material distribution chamber 422 and the other end is connected to the material distribution port 421. The material enters the material distribution chamber 422 from the feeding channel 412, then flows to the material distribution port 421 through the material distribution channel 423, and finally enters the storage cylinder 30 through the material distribution port 421.

[0049] Preferably, the dispensing chamber 422 is located in the middle of the dispensing plate 42, the dispensing channel 423 is evenly arranged along the periphery of the dispensing chamber 422, and the dispensing port 421 is located at the bottom of the dispensing plate 42. This structural design allows material to flow from the dispensing plate 42 into the storage cylinder 30 at various circumferential positions, thereby making the feeding of the storage cylinder 30 more uniform.

[0050] Cooperate Figure 1 , Figure 3As shown, the drive assembly 20 is mounted on the frame 10 and located above the storage cylinder 30. Specifically, the drive assembly 20 includes a motor 21 and a drive shaft 22. One end of the drive shaft 22 is connected to the output shaft of the motor 21, and the other end is connected to the storage cylinder 30. A conversion structure is also connected between the output shaft of the motor 21 and the drive shaft 22 to convert the rotational motion of the motor 21's output shaft into linear motion. This conversion structure adopts an existing design. The motor 21 can also be replaced by other drive components such as a pneumatic cylinder or a hydraulic cylinder. Preferably, to ensure the stability of the storage cylinder 30 during its up-and-down movement, there are two drive shafts 22, which are respectively connected and fixed to the left and right sides of the storage cylinder 30.

[0051] Furthermore, the frame 10 is provided with a vertically arranged guide hole 11, through which the drive shaft 22 passes and is movably engaged. The engagement between the guide hole 11 and the drive shaft 22 limits and guides the up-and-down movement of the drive shaft 22 and the storage cylinder 30, thereby making the movement of the storage cylinder 30 more stable.

[0052] The inner bottom wall of the storage cylinder 30 is conical, and the discharge port 31 is located at the middle of the bottom end of the storage cylinder 30. The conical surface of the inner bottom wall of the storage cylinder 30 facilitates the flow of material to the discharge port 31. Furthermore, the bottom surface of the distribution plate 42 is conical, and the conical surface of the distribution plate 42 corresponds to the conical surface of the inner bottom wall of the storage cylinder 30. When material needs to be discharged, the valve at the discharge port 31 is opened, and the drive assembly 20 drives the storage cylinder 30 to move upward relative to the distribution plate 42, and the material is squeezed out from the discharge port 31.

[0053] The bottom wall of the storage cylinder 30 is a detachable structure. Specifically, the bottom wall of the storage cylinder 30 is fixed by screws, making the bottom wall of the storage cylinder 30 a detachable structure, which facilitates the removal of the bottom wall to clean the inside of the storage cylinder 30 (especially the pressure holding chamber).

[0054] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A first-in-first-out (FIFO) pressure-maintaining feeding device, characterized in that: include: frame; The drive assembly is located on the rack; A storage cylinder is connected to the drive assembly, which drives the storage cylinder to move up and down. The storage cylinder is provided with a discharge port. A feeding assembly is provided on the frame. The feeding assembly has a feeding port and includes a distributing plate located inside the storage cylinder. The distributing plate is sealed and movable with the inner wall of the storage cylinder. The distributing plate has a distributing port that communicates with the feeding port and is located above the discharge port. Material enters the feeding assembly from the feed inlet and flows out to the storage cylinder through the distribution port. The driving assembly drives the storage cylinder to move upward relative to the distribution plate, thereby causing the material in the storage cylinder to flow out from the discharge port.

2. The first-in-first-out pressure-maintaining feeding device as described in claim 1, characterized in that: The material distribution tray is provided with a material distribution chamber and a material distribution channel. The material distribution chamber is connected to the material inlet, and one end of the material distribution channel is connected to the material distribution chamber and the other end is connected to the material distribution inlet.

3. The first-in-first-out pressure-maintaining feeding device as described in claim 2, characterized in that: The material dispensing chamber is located in the middle of the material dispensing tray, the material dispensing channels are evenly arranged along the periphery of the material dispensing chamber, and the material dispensing port is located at the bottom of the material dispensing tray.

4. The first-in-first-out pressure-maintaining feeding device as described in claim 1, characterized in that: The feeding assembly includes a feeding column, the top of which is fixed to the frame, and the bottom of which extends into the storage cylinder and is connected to the distribution plate. The feeding port is located on the feeding column, and the feeding column has a feeding channel that communicates with both the feeding port and the distribution port.

5. The first-in-first-out pressure-maintaining feeding device as described in claim 4, characterized in that: The top of the storage cylinder is provided with a first dustproof plate, and the first dustproof plate is provided with a clearance hole for the feed column to extend into. The diameter of the clearance hole is larger than the diameter of the feed column. The feed column is fixed with a second dustproof plate, and the diameter of the second dustproof plate is larger than the diameter of the clearance hole.

6. The first-in-first-out pressure-maintaining feeding device as described in claim 1, characterized in that: The drive assembly includes a motor and a drive shaft. One end of the drive shaft is connected to the output shaft of the motor, and the other end is connected to the storage cylinder.

7. The first-in-first-out pressure-maintaining feeding device as described in claim 6, characterized in that: The frame is provided with a vertically arranged guide hole, and the drive shaft passes through the guide hole and is movably engaged with the guide hole.

8. A first-in-first-out pressure-maintaining feeding device as described in claim 6 or 7, characterized in that: The number of drive shafts is two.

9. The first-in-first-out pressure-maintaining feeding device as described in claim 1, characterized in that: The inner cavity bottom wall of the storage cylinder and the bottom end face of the distribution plate are both conical surfaces, and the discharge port is located at the middle of the bottom end of the storage cylinder.

10. The first-in-first-out pressure-maintaining feeding device as described in claim 1, characterized in that: The bottom wall of the storage cylinder is a detachable structure.

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