Vacuum rake dryer capable of accurately and quantitatively discharging

By introducing pressure-type weight sensors and drive motors into the vacuum rake dryer, precise quantitative measurement and efficient feeding of materials are achieved, solving the problem of uneven product quality caused by inaccurate material quantity in existing technologies, and improving the efficiency and accuracy of equipment use.

CN224136235UActive Publication Date: 2026-04-17NANTONG KNEADING MIXING MACHINE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANTONG KNEADING MIXING MACHINE
Filing Date
2025-05-16
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing vacuum rake dryers cannot ensure the accuracy of the amount of dried material discharged each time, resulting in uneven product composition, affecting product quality, and failing to meet the strict requirements of some production processes regarding the amount of material added and discharged.

Method used

It adopts a combination design of pressure-type weight sensor, force block, balance plate, fixed block and storage shell. It controls the opening and closing of valve by detecting the weight of material, and uses the design of drive motor, drive shaft and rotating plate to achieve accurate quantitative and efficient material feeding.

Benefits of technology

It achieves precise material feeding, avoids uneven material mixing, improves the versatility of the dryer and the efficiency of material feeding, and is suitable for processing materials that require precise weighing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of vacuum rake type dryers, and discloses a vacuum rake type dryer capable of accurately and quantitatively discharging, which comprises a support frame, a mounting platform is fixedly mounted on one side of the top end of the support frame, and a dryer equipment main body is fixedly mounted on one side of the mounting platform on the top end of the support frame; a control valve penetrates out of one side of the bottom end of the drying machine equipment body, and a discharging mechanism is arranged below the control valve. The discharging mechanism comprises a supporting rod, and the supporting rod is fixedly installed on the other side of the top end of the supporting frame. Through the design of a pressure type weight sensor, a stress block, a balance plate, a fixing block and a containing shell, opening and closing of a discharging control valve according to the weight of materials are achieved, and therefore the discharging accuracy of the materials can be guaranteed; and non-uniformity caused by mixing with other materials in the later period is avoided, the device is suitable for processing the materials needing to be accurately weighed, and the using comprehensiveness of the whole drying machine equipment main body is improved.
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Description

Technical Field

[0001] This utility model relates to the technical field of vacuum rake dryers, specifically a vacuum rake dryer for precise quantitative unloading. Background Technology

[0002] A vacuum rake dryer is a device that dries materials in a vacuum environment. It mainly consists of a drying cylinder, rake teeth, a heating system, a vacuum system, and a discharge device. It utilizes the vacuum environment to lower the boiling point of the material, causing the moisture in the material to evaporate at a lower temperature. It can process various types of materials, including high-viscosity, paste-like, granular, and powdery materials. For some difficult-to-dry materials, such as those containing water of crystallization or materials that easily form a crust under normal pressure, the vacuum rake dryer can also achieve good drying results.

[0003] In the field of vacuum rake dryers, existing vacuum rake dryers all discharge material directly. However, it is impossible to ensure the accuracy of the amount of dried material discharged each time. The difference in material quantity leads to uneven product composition, which affects the product quality and compliance with standards and requirements. At the same time, for certain specific production processes, there are strict requirements on the amount of material added and discharged. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] Given that the existing technologies mentioned above cannot ensure the accuracy of the amount of dried material discharged each time, the difference in material quantity leads to uneven product composition, thereby affecting the product quality and compliance with standards and requirements. In addition, for certain specific production processes, there are strict requirements on the amount of material added and discharged.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A vacuum rake dryer for precise quantitative unloading, characterized in that it includes:

[0008] A support frame is provided, with an installation platform fixedly installed on one side of the top of the support frame, and the main body of the dryer equipment is fixedly installed on one side of the installation platform at the top of the support frame. A control valve extends through one side of the bottom of the main body of the dryer equipment, and a discharge mechanism is provided below the control valve.

[0009] The material discharge mechanism includes a support rod, which is fixedly installed on the other side of the top of the support frame. A bearing plate is fixedly installed on the top of the support rod, and a pressure-type weight sensor is embedded in the inner wall of the bearing plate. A force-bearing block protrudes from the top of the bearing plate, and a balance plate is fixedly installed on the top of the force-bearing block. A fixing block is embedded in the top of the balance plate, and a storage shell is fixedly installed above the fixing block.

[0010] As a further improvement of this utility model: the control valve extends into the interior of the housing, and the housing is detachably connected to the fixing block by bolts.

[0011] As a further improvement of this utility model: the force-bearing block extends through the interior of the bearing plate, and the pressure-type weight sensor is in close contact with the force-bearing block.

[0012] As a further improvement of this utility model: a guide platform is fixedly installed inside the lower part of the storage shell, and a feeding mechanism is provided on one side of the storage shell.

[0013] As a further embodiment of this utility model: the feeding mechanism includes a flow shell, which is fixedly installed at one end of the receiving shell, and a dust baffle is embedded at the front end of the flow shell.

[0014] As a further improvement of this utility model: a partition plate is fixedly installed between the flow shell and the dust baffle plate, and a flow groove is opened inside the partition plate.

[0015] As a further embodiment of this utility model: a drive motor is embedded in the outer wall of the flow shell, and a drive shaft is fixedly installed at the power output end of the drive motor. A rotating plate is fixedly installed on the outer wall of the end of the drive shaft that passes through the flow groove.

[0016] As a further embodiment of this utility model: the rotating plate forms a rotating structure with the partition plate through the drive shaft, and the outer dimensions of the rotating plate match the outer dimensions of the flow groove.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] This invention, through the design of a pressure-type weight sensor, a force-bearing block, a balance plate, a fixing block, and a storage shell, enables the control valve for material feeding to be opened and closed according to the weight of the material. This ensures the accuracy of material feeding and unloading, avoids uneven mixing with other materials later, and is suitable for processing materials that require precise weighing, thus improving the overall versatility of the dryer equipment.

[0019] This invention, through the design of a drive motor, drive shaft, and rotating plate, can close the flow channel when weighing materials by controlling and setting the drive motor, thus preventing material from flowing out and affecting the accuracy of weighing. When feeding, the rotating plate can rotate inside the flow channel, thereby moving the material for feeding, maintaining flowability and improving material feeding efficiency. Attached Figure Description

[0020] Figure 1 A schematic diagram of the overall structure of a vacuum rake dryer for precise quantitative unloading;

[0021] Figure 2 A schematic diagram of the control valve structure for a vacuum rake dryer for precise quantitative unloading;

[0022] Figure 3 A schematic diagram of the support rod structure for a vacuum rake dryer with precise quantitative unloading;

[0023] Figure 4 A schematic diagram of the dust baffle structure of a vacuum rake dryer for precise quantitative unloading;

[0024] Figure 5 This is a schematic diagram of the rotating plate structure of a vacuum rake dryer for precise quantitative unloading.

[0025] In the diagram: 1. Support frame; 2. Mounting platform; 3. Main body of the dryer; 4. Control valve; 5. Discharge mechanism; 501. Support rod; 502. Bearing plate; 503. Pressure-type weight sensor; 504. Force block; 505. Balance plate; 506. Fixing block; 507. Storage shell; 6. Guide platform; 7. Unloading mechanism; 701. Flow shell; 702. Dust baffle; 703. Divider plate; 704. Flow channel; 705. Drive motor; 706. Drive shaft; 707. Rotating plate. Detailed Implementation

[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0029] Example 1

[0030] Please see Figures 1 to 3 This is the first embodiment of the present utility model. This embodiment provides a vacuum rake dryer for precise quantitative unloading, including: a support frame 1, an installation platform 2 fixedly installed on one side of the top of the support frame 1, a dryer equipment body 3 fixedly installed on one side of the installation platform 2 at the top of the support frame 1, a control valve 4 extending through one side of the bottom of the dryer equipment body 3, and a discharge mechanism 5 provided below the control valve 4.

[0031] The material discharge mechanism 5 includes a support rod 501, which is fixedly installed on the other side of the top of the support frame 1. A bearing plate 502 is fixedly installed on the top of the support rod 501. A pressure-type weight sensor 503 is embedded in the inner wall of the bearing plate 502. A force-bearing block 504 protrudes from the top of the bearing plate 502. A balance plate 505 is fixedly installed on the top of the force-bearing block 504. A fixing block 506 is embedded in the top of the balance plate 505. A storage shell 507 is fixedly installed above the fixing block 506.

[0032] Specifically, the control valve 4 extends into the interior of the housing 507, which is detachably connected to the fixing block 506 by bolts.

[0033] Furthermore, the control valve 4 and the pressure weight sensor 503 are connected to the control terminal of the dryer equipment body 3 via signals, and can sense the weight of the material being fed to open and close the control valve 4.

[0034] Specifically, the force-bearing block 504 extends into the interior of the bearing plate 502, and the pressure-type weight sensor 503 is in close contact with the force-bearing block 504.

[0035] Furthermore, by having the force-bearing block 504 penetrate the bearing plate 502 and abut against the pressure-type weight sensor 503, the weight of the material entering the housing 507 can be detected, and the control valve 4 can be opened or closed according to the quantitative threshold of the control terminal.

[0036] In use, the dryer body 3 and other compatible components are fixed and supported by the support frame 1 and the mounting platform 2. The dryer body 3 consists of components such as the drying cylinder, rake tooth device, heating system, vacuum system, and control terminal. The material feeding is controlled by the control valve 4. The control valve 4 is inserted into the receiving shell 507. The receiving shell 507 disperses the pressure through the fixing block 506 and the balance plate 505 at the bottom, so that it can pass through the force block 504 into the bearing plate 502 and concentrate against the pressure-type weight sensor 503 to detect the weight of the material inside the receiving shell 507. Then, the control valve 4 is closed by the control terminal and signal. The bearing plate 502 is fixed on the support frame 1 by the support rod 501.

[0037] In summary, by having the pressure-type weight sensor 503 contact the force-bearing block 504, and with the force distributed by the balance plate 505 and the fixing block 506, and with the support plate 502 limiting the force-bearing block 504, the material inside the receiving shell 507 can be weighed. A threshold is set in advance by the control terminal of the dryer equipment body 3. If the threshold is exceeded, the control valve 4 will be closed by a signal, thereby achieving precise quantitative measurement, ensuring the accuracy of material discharge, and avoiding uneven composition when the product materials are mixed in the later production process.

[0038] Example 2

[0039] Please see Figure 1 , Figure 2 , Figure 4 and Figure 5 This is the second embodiment of the present invention, which provides an improved design for a vacuum rake dryer with precise quantitative unloading.

[0040] Specifically, a guide platform 6 is fixedly installed inside the lower part of the storage shell 507, and a feeding mechanism 7 is provided on one side of the storage shell 507.

[0041] Furthermore, the feeding mechanism 7 can close the receiving shell 507, allowing the material to be fed after weighing.

[0042] Specifically, the feeding mechanism 7 includes a flow shell 701, which is fixedly installed at one end of the storage shell 507, and a dust baffle 702 is embedded at the front end of the flow shell 701.

[0043] Furthermore, the material is guided into the dust baffle 702 through the receiving shell 507 and discharged. The dust baffle 702 has an opening facing downwards to prevent dust from easily entering and contaminating the material.

[0044] Specifically, a partition plate 703 is fixedly installed between the flow shell 701 and the dust baffle plate 702, and a flow groove 704 is opened inside the partition plate 703.

[0045] Furthermore, the partition plate 703 and the flow channel 704 can reserve space to allow materials to flow from the flow shell 701 into the range of the dust baffle plate 702.

[0046] Specifically, a drive motor 705 is embedded in the outer wall of the flow shell 701, and a drive shaft 706 is fixedly installed at the power output end of the drive motor 705. A rotating plate 707 is fixedly installed on the outer wall of the end of the drive shaft 706 that passes through the flow groove 704.

[0047] Furthermore, by controlling the drive motor 705 and the drive shaft 706, the rotating plate 707 can be rotated, and closed during weighing to prevent material flow from affecting the accuracy of weighing.

[0048] Specifically, the rotating plate 707 forms a rotating structure with the partition plate 703 through the drive shaft 706, and the external dimensions of the rotating plate 707 match the external dimensions of the flow groove 704.

[0049] Furthermore, during material feeding, the rotating plate 707 is continuously rotated by the drive motor 705 and drive shaft 706, thereby moving the material and improving the material feeding efficiency.

[0050] In use, the material is guided into the flow shell 701 by the guide platform 6, passes through the flow channel 704 and the partition plate 703, and is discharged through the dust baffle 702. Under normal circumstances, the drive motor 705 equipped with an electromagnetic brake can limit the drive shaft 706 to make the rotating plate 707 close the flow channel 704, preventing material flow and thus achieving the weighing effect. When feeding, the drive motor 705 drives the drive shaft 706 to make the rotating plate 707 rotate, moving the material and improving the feeding efficiency. The rotation stroke of the drive motor 705 can be set and the rotating plate 707 can be closed to close the flow channel 704 when it stops.

[0051] In summary, by controlling the drive motor 705, the drive shaft 706 can drive the rotating plate 707 to rotate. In the weighing state, the closed flow channel 704 prevents material flow from affecting the accuracy of unloading. In the unloading state, the rotating plate 707 rotates continuously, thereby improving the efficiency of material unloading.

[0052] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0053] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0054] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine task in design, manufacturing, and production without requiring extensive experimentation.

[0055] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A vacuum rake dryer for precision dosing of discharge, characterized in that: include: A support frame (1) is provided with an installation platform (2) fixedly installed on one side of the top of the support frame (1), and a dryer equipment body (3) is fixedly installed on one side of the installation platform (2) at the top of the support frame (1). A control valve (4) extends out from one side of the bottom of the dryer equipment body (3), and a discharge mechanism (5) is provided below the control valve (4). The material discharge mechanism (5) includes a support rod (501), which is fixedly installed on the other side of the top of the support frame (1). A bearing plate (502) is fixedly installed on the top of the support rod (501), and a pressure-type weight sensor (503) is embedded in the inner wall of the bearing plate (502). A force-bearing block (504) protrudes from the top of the bearing plate (502), and a balance plate (505) is fixedly installed on the top of the force-bearing block (504). A fixing block (506) is embedded in the top of the balance plate (505), and a storage shell (507) is fixedly installed above the fixing block (506).

2. The vacuum rake dryer for precise quantitative unloading according to claim 1, characterized in that: The control valve (4) extends into the interior of the housing (507), and the housing (507) is detachably connected to the fixing block (506) by bolts.

3. The vacuum rake dryer for precise quantitative unloading according to claim 1, characterized in that: The force-bearing block (504) extends into the interior of the bearing plate (502), and the pressure-type weight sensor (503) is in close contact with the force-bearing block (504).

4. The vacuum rake dryer for precise quantitative unloading according to claim 1, characterized in that: A guide platform (6) is fixedly installed inside the lower part of the storage shell (507), and a feeding mechanism (7) is provided on one side of the storage shell (507).

5. The vacuum rake dryer for precise quantitative discharge according to claim 4, characterized in that: The feeding mechanism (7) includes a flow shell (701), which is fixedly installed at one end of the receiving shell (507), and a dust baffle (702) is embedded at the front end of the flow shell (701).

6. A vacuum rake dryer for precise quantitative unloading according to claim 5, characterized in that: A partition plate (703) is fixedly installed between the flow shell (701) and the dust baffle plate (702), and a flow groove (704) is provided inside the partition plate (703).

7. The vacuum rake dryer for precise quantitative unloading according to claim 5, characterized in that: The outer wall of the flow shell (701) is fitted with a drive motor (705), and the power output end of the drive motor (705) is fixedly mounted with a drive shaft (706). A rotating plate (707) is fixedly mounted on the outer wall of one end of the drive shaft (706) that passes through the flow groove (704).

8. A vacuum rake dryer for precise quantitative unloading according to claim 7, characterized in that: The rotating plate (707) forms a rotating structure with the partition plate (703) through the drive shaft (706), and the external dimensions of the rotating plate (707) match the external dimensions of the flow groove (704).