Metal piece moisture vacuum drying device

Abstract

The utility model discloses a vacuum drying device for moisture of a metal piece. The vacuum drying device comprises a fixed turntable and a vacuum cover, the vacuum cover is arranged on the part fixing rotary table, the vacuum cover and the part fixing rotary table form the first cavity, and the first cavity is a closed cavity; the part fixing rotary disc is externally connected with a vacuum exhaust pipe, and the vacuum exhaust pipe is communicated to the closed cavity. A main pipeline further extends out of the lower portion of the part fixing rotary disc, and the other end of the vacuum exhaust pipe communicates with the main pipeline; the main pipeline is rotationally connected to a vacuum suction device, a suction section of the vacuum suction device is communicated with the main pipeline, and a connecting part of the suction section of the vacuum suction device and the main pipeline is of a sealed structure. When parts are dried, the part fixing disc can be driven to rotate through rotation, and then the parts arranged on the part fixing disc are driven to rotate. And the drying effect is improved through the centrifugal effect generated through cooperation of vacuum suction and rotation.

Description

Technical Field

[0001] The utility model belongs to the technical field of part drying treatment, and particularly relates to a metal part moisture vacuum drying device. Background Art

[0002] In the prior art, the moisture drying process of metal parts is usually required to be carried out in a vacuum environment. This method aims to accelerate the evaporation of moisture by reducing the pressure in the environment, so as to achieve efficient and rapid drying of metal parts. With its unique advantages, vacuum drying technology has been widely applied in the fields of metal processing, manufacturing and surface treatment.

[0003] In a vacuum environment, since the number of gas molecules is greatly reduced, the environmental pressure is lowered, and then the moisture evaporation point on the surface of the metal part is also correspondingly reduced. This means that even at a lower temperature, the moisture on the surface of the metal part can evaporate rapidly. However, the drying efficiency is low only by the way of pumping vacuum. Content of the Utility Model

[0004] In view of the above problems, the utility model discloses a metal part moisture vacuum drying device, including: a part fixing turntable and a vacuum cover that are connected to form a first chamber; wherein, the vacuum cover is arranged on the part fixing turntable, and the vacuum cover and the part fixing turntable form the first cavity, and the first cavity is a closed chamber; a part fixing portion is arranged on the disk surface of the part fixing turntable, and the part fixing portion is located in the first chamber; a vacuum extraction pipe is externally connected to the part fixing turntable, and the vacuum extraction pipe is connected to the closed chamber; a main pipe also extends below the part fixing turntable, and the other end of the vacuum extraction pipe is connected to the main pipe; the main pipe is rotatably connected to a vacuum suction device, the suction section of the vacuum suction device is connected to the main pipe, and the connection part between the suction section of the vacuum suction device and the main pipe is a sealed structure.

[0005] In some exemplary technical solutions, the part fixing portion is a column extending from the disk surface of the part fixing turntable, and a flange body is arranged on any side of the column; the part to be dried has at least one pore; the integral structure formed by the column and the flange body is riveted to the pore of the part to be dried.

[0006] In some exemplary technical solutions, a heater is arranged around the outer wall of the vacuum cover.

[0007] In some exemplary technical solutions, the connection part between the suction section of the vacuum suction device and the main pipe is a pair of rotary sealing disks.

[0008] In some exemplary technical solutions, a first groove is provided on the upper surface of the part fixing turntable, and a first protrusion is provided at the edge of the cover body of the vacuum hood. The first protrusion is fixedly engaged with the first groove. Among them, at least one of the first groove and the first protrusion is wrapped with a rubber ring, and the rubber ring forms an interference fit structure with the first groove and the first protrusion.

[0009] In some exemplary technical solutions, it further includes a driver, and a pulley is wound between the driver and the part fixing turntable.

[0010] In some exemplary technical solutions, the starting end of the main pipeline is located below the part fixing turntable, a first through hole is provided at the center of the part fixing turntable, and the main pipeline extends above the vacuum hood after passing through the first through hole; the vacuum extraction pipe is connected to the side wall of the main pipeline.

[0011] In some exemplary technical solutions, a control panel is provided at the top of the main pipeline.

[0012] The effect is as follows:

[0013] The present utility model provides the part fixing turntable, and the part fixing turntable and the vacuum hood are jointly arranged on the vacuum suction device and are rotatably connected. The rotation of the part fixing disk and the vacuum hood is driven by an external driver. Thus, when drying the parts, the rotation of the part fixing disk can be driven by rotation, and then the parts arranged thereon can be driven to rotate. Through the centrifugal action generated by the cooperation of vacuum suction and rotation, the drying effect is improved, and thus the efficiency of drying the parts is improved.

[0014] Other features and advantages of the present utility model will be described in the following description of the specification, and some of them will become obvious from the description of the specification, or can be understood by implementing the present utility model. The objectives and other advantages of the present utility model can be achieved and obtained through the structures pointed out in the specification, the claims and the drawings. Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 Shows a partial cross-sectional view of a metal moisture drying device according to an embodiment of the present utility model;

[0017] Figure 2Shows a partial structural diagram of a metal moisture drying device according to an embodiment of the present utility model;

[0018] Figure 3 Shows an exploded structural diagram of a metal moisture drying device according to an embodiment of the present utility model.

[0019] Reference numerals: 100 - First chamber, 110 - Part fixing turntable, 120 - Vacuum cover, 130 - Vacuum extraction pipe, 140 - Main pipe, 150 - Part fixing portion, 151 - Cylinder, 152 - Flange body, 121 - Heater, 111 - First groove, 112 - Second through hole, 122 - First protrusion, 160 - First through hole, 141 - Control panel;

[0020] 200 - Vacuum suction device, 210 - Bent pipe;

[0021] 300 - Driver, 310 - Pulley, 320 - Output disk. Detailed implementation manners

[0022] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] Next, refer to Figures 1-3 to understand the subsequent embodiments

[0024] In the first embodiment, a metal part moisture vacuum drying device is disclosed, including: a part fixing turntable 110 and a vacuum cover 120 that are connected to form a first chamber 100; wherein, the vacuum cover 120 is disposed on the part fixing turntable 110, and the vacuum cover 120 and the part fixing turntable 110 form the first cavity, and the first cavity is a closed chamber.

[0025] This example can be understood in combination with Figure 1 the sorting structure shown. In this example, the first chamber 100 becomes a vacuum cavity after being evacuated, actually forming a low-pressure environment. In this low-pressure environment, moisture rapidly volatilizes from the surface of the metal part, thereby realizing the drying of the metal part.

[0026] On the disc surface of the part fixing turntable 110, there is a part fixing portion 150, and the part fixing portion 150 is located in the first cavity. The part fixing turntable 110 is externally connected with a vacuum extraction pipe 130, and the vacuum extraction pipe 130 is connected to the closed chamber; a main pipe 140 also extends below the part fixing turntable 110, and the other end of the vacuum extraction pipe 130 is connected to the main pipe 140; the main pipe 140 is rotatably connected to a vacuum suction device 200, the suction section of the vacuum suction device 200 is connected to the main pipe 140, and the connection part between the suction section of the vacuum suction device 200 and the main pipe 140 is a sealed structure. In this metal part moisture vacuum drying device, by connecting the vacuum suction device 200 to the main pipe 140 and the vacuum extraction pipe 130 to the closed chamber, in this example, the area where each vacuum extraction pipe 130 is connected to the first cavity is the second through hole 112, forming a closed system. When the vacuum suction device 200 is started, it extracts air and moisture from the closed chamber through the main pipe 140, causing the pressure in the closed chamber to gradually decrease. In a low-pressure environment, moisture rapidly volatilizes from the surface of the metal part, achieving the drying of the metal part.

[0027] In this example, the rotation of the part fixing turntable 110 drives the part to be dried to rotate, and combined with centrifugal force and suction vacuum, the drying function of the part to be dried is realized. Specifically, when the part fixing turntable 110 starts to rotate, the part to be dried rotates together. During the rotation process, under the action of centrifugal force, the moisture on the surface of the part to be dried is rapidly dispersed to the surroundings.

[0028] It can be understood that the device in this embodiment combines the rotation function of the part fixing turntable 110, and uses centrifugal force to rapidly disperse the moisture on the surface of the part to be dried to the surroundings. This method can distribute moisture more evenly, improving the drying efficiency and speed. Through the closed system connecting the vacuum suction device 200 to the main pipe 140 and the vacuum extraction pipe 130 to the closed chamber, a closed environment is formed. Compared with the simple vacuum suction method, this closed system can more effectively control the environmental pressure, ensure that moisture volatilizes more rapidly in a low-pressure environment, thereby accelerating the drying process. Moreover, the device in this embodiment enables the part to be dried to rotate along with the rotation of the part fixing turntable 110, thus achieving more comprehensive coverage during the drying process and ensuring that every part of the metal part surface can be effectively dried.

[0029] Second embodiment, based on the foregoing embodiment, combined with Figure 2 the internal structure shown. The part fixing portion 150 is a cylinder 151 extending from the disc surface of the part fixing turntable 110, and any side of the cylinder 151 has a flange body 152. In Figure 2In the structure shown, the column 151 is a cylinder 151, and the flange 152 is a rectangular strip structure extending from the side wall of the cylinder 151.

[0030] In this example, the part to be dried has at least one pore; the integral structure formed by the column 151 and the flange 152 is riveted to the pore of the part to be dried. For example, when the part to be dried is a gear, it usually has a shaft hole for installation in a mechanical device. Before the operation of the device, the operator places the gear to be dried on the part fixing turntable 110. Subsequently, the part fixing turntable 110 starts to rotate, rotating the gear to be dried together. At this time, the integral structure formed by the shaft hole of the gear to be dried and the part fixing portion 150 of the part fixing turntable 110 fits perfectly. Specifically, the shaft hole of the gear to be dried coincides with the column 151 part and the flange 152 part of the part fixing portion 150, forming a tight connection. The rectangular strip structure of the flange 152 will be in close contact with the wall surface of the shaft hole of the gear, ensuring the stability of the connection, ensuring that the part to be dried can be fixed during the drying process, and making the drying effect more uniform and effective.

[0031] Combined with the description of the foregoing embodiments, when the part to be dried is placed on the part fixing turntable 110, the integral structure formed by it and the part fixing portion 150 can ensure a tight connection between the part and the turntable. The column 151 part of the part fixing portion 150 coincides with the pore of the part (such as the shaft hole of the gear), forming a stable support structure. The design of the flange 152 further strengthens the stability of the connection. The flange 152 is in close contact with the wall surface of the pore of the part, forming additional fixation, effectively preventing the part from shaking and displacing during rotation. Therefore, the part to be dried can be firmly fixed on the part fixing turntable 110 and remain stable even at high speeds. In this way, whether under the action of centrifugal force or during drying in a vacuum environment, the part to be dried can always maintain a relatively static state with the part fixing turntable 110, thus ensuring the drying process.

[0032] Continue to refer to Figure 1It is understood that a heater 121 is provided around the outer wall of the vacuum chamber 120 in this example. In this example, the heater 121 is a number of infrared heaters 121 arranged around the outside of the outer wall of the vacuum chamber 120. In this embodiment, the heater 121 heats the vacuum chamber 120. In a vacuum state, water will evaporate rapidly when heated because, in a low-pressure environment, the boiling point of water decreases, making it easier for water molecules to change from the liquid state to the gaseous state. When the heater 121 applies heat to the vacuum chamber 120, the temperature inside the vacuum chamber 120 rises, causing the moisture attached to the surface of the metal part to start heating up and turn into water vapor. Since the first chamber 100 is in a vacuum state, water vapor cannot exist under high pressure, so it will immediately evaporate into a gaseous state. Then, the vacuum pump 200 extracts the gas containing water vapor from the first chamber through the main pipe 140, causing the pressure inside the first chamber 100 to continue to drop, promoting more water molecules to volatilize from the surface of the metal part into the chamber. In this way, through the synergistic effect of heating and vacuum pumping, moisture can be quickly and effectively volatilized from the surface of the metal part and extracted from the first chamber, thus achieving the drying of the metal part.

[0033] During the working process of the device in this embodiment, in addition to the effects of heating and vacuum pumping, liquid centrifugal force also plays a key role. The metal part to be dried is fixed on the part fixing turntable 110 and rotates with it. When the part fixing turntable 110 starts to rotate, the metal part to be dried also rotates accordingly. During the rotation process, under the action of centrifugal force, the moisture attached to the surface of the metal part is quickly thrown to the inner wall of the first chamber.

[0034] The action of this liquid centrifugal force enables the moisture to be evenly dispersed on the inner wall of the chamber, increasing the surface area of contact between the moisture and the vacuum environment, thereby accelerating the evaporation rate of the moisture. Subsequently, the heater 121 applies heat to the vacuum chamber 120, causing the moisture to quickly heat up and turn into water vapor. In a low-pressure environment, the water vapor will quickly evaporate into a gaseous state and then be extracted from the first chamber by the vacuum pump 200 through the main pipe 140.

[0035] Therefore, by using liquid centrifugal force to throw the moisture to the inner wall of the first chamber and combining the effects of heating and vacuum pumping, the moisture can be quickly and efficiently volatilized from the surface of the metal part. This working principle improves the drying speed and ensures that every part of the surface of the metal part can be fully dried.

[0036] In some specific examples, the connection part between the suction section of the vacuum pump 200 and the main pipe 140 is a pair of rotary sealing disks. Before use, the cover can be removed from the part fixing turntable 110. After fixing the part, the cover is set on the part fixing disk. After evacuating the vacuum, the sealing disks form a seal for the connection area.

[0037] Third Embodiment. Based on the foregoing embodiments, the structure in this example can be further understood with reference to Figure 3 The upper surface of the part fixing turntable 110 is provided with a first groove 111, and the edge of the cover body of the vacuum cover 120 has a first protrusion 122. The first protrusion 122 is fitted and fixed with the first groove 111. Among them, at least one of the first groove 111 and the first protrusion 122 is wrapped with a rubber ring (not shown in the figure), and the rubber ring forms an interference fit structure with the first groove 111 and the first protrusion 122. When the vacuum cover 120 is installed on the part fixing turntable 110, the first protrusion 122 will be embedded in the first groove 111 to form a locking connection. And, the rubber ring is wrapped between the first groove 111 and the first protrusion 122 to form an interference fit structure. This design enables the rubber ring to fill the tiny gap between the groove and the protrusion, forming a tighter seal. The elasticity and sealing performance of the rubber ring can effectively prevent gas from leaking from the connection part and maintain the stability of the vacuum environment inside the first chamber 100.

[0038] Fourth Embodiment. Based on the foregoing embodiments, continue to understand with reference to Figure 1 the structure shown. The device in this example further includes a driver. A pulley 310 is wound around the driver 300 and the part fixing turntable 110. The driver 300 can be an electric driver 300 or a pneumatic driver 300. In the case of the electric driver 300, the driver 300 is composed of an electric motor and a transmission device. The electric motor serves as a power source, and the rotational motion is transmitted to the output disk 320 through the transmission device, thereby driving the part fixing turntable 110 to rotate. The device rotates the part fixing turntable 110 through the output disk 320. A pulley 310 is wound around the output disk 320, and the pulley 310 on the output disk 320 is connected to the pulley 310 on the part fixing turntable 110. When the driver 300 is started, the pulley 310 on the output disk 320 rotates, thereby driving the part fixing turntable 110 to rotate, so that the parts to be dried also rotate accordingly. In this way, through the action of the driver 300, the parts to be dried can remain in a relatively stationary state during the drying process, ensuring the drying effect.

[0039] In Figure 3In the illustrated example, the connection between the vacuum extraction pipe 130 and the part fixing turntable 110 is a rigid bent pipe 210. The bent pipe 210 is arranged around the part fixing turntable 110, and the pulley 310 is wound around the bent pipe 210. In this device, the transmission process is achieved by the driver 300. The driver 300 can be an electric driver 300 or a pneumatic driver 300, and its function is to transmit the rotational motion to the output disk 320, thereby driving the part fixing turntable 110 to rotate. Specifically, in the case of the electric driver 300, the electric motor serves as the power source, and the rotational motion is transmitted to the output disk 320 through the transmission device, and then drives the part fixing turntable 110 to rotate. The pulley 310 wound on the output disk 320 is connected to the pulley 310 on the part fixing turntable 110. When the driver 300 is started, the pulley 310 on the output disk 320 rotates, thereby driving the part fixing turntable 110 to rotate, so that the parts to be dried also rotate accordingly. During the drying process, the metal parts to be dried are fixed on the part fixing turntable 110 and rotate with it. When the part fixing turntable 110 starts to rotate, the metal parts to be dried also rotate accordingly. During the rotation process, under the action of the centrifugal force, the moisture attached to the surface of the metal parts is quickly thrown to the inner wall of the first cavity.

[0040] The fifth embodiment, based on the foregoing embodiments, continues to refer to Figure 2 In the structure shown, the starting end of the main pipe 140 is located below the part fixing turntable 110. A first through hole 160 is provided at the center of the part fixing turntable 110. After passing through the first through hole 160, the main pipe 140 extends above the vacuum hood 120. The vacuum extraction pipe 130 is connected to the side wall of the main pipe 140, and then connected to the part fixing turntable 110 through a hose, so as to suck the first cavity.

[0041] Combined with Figures 1-2 For understanding, a control panel 141 is provided at the top of the main pipe 140. In this example, the control panel 141 can control the degree of vacuum extraction. In some examples, the driver 300 is also provided with a second control panel 141 for controlling the rotation speed of the driver 300 and whether to start the driver 300.

[0042] Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A metal parts moisture vacuum drying device, characterized in that: include: A part fixing turntable (110) and a vacuum cover (120) are connected to form a first chamber (100); wherein the vacuum cover (120) is arranged on the part fixing turntable (110), and the vacuum cover (120) and the part fixing turntable (110) form a first cavity, and the first cavity is a closed chamber; A part fixing portion (150) is provided on the disc surface of the part fixing turntable (110), and the part fixing portion (150) is located in the first cavity; the part fixing turntable (110) is externally connected to a vacuum exhaust pipe (130), and the vacuum exhaust pipe (130) is connected to the closed chamber; a main pipeline (140) is also extended from the bottom of the part fixing turntable (110), and the other end of the vacuum exhaust pipe (130) is connected to the main pipeline (140); The main pipeline (140) is rotatably connected to the vacuum extractor (200), the suction section of the vacuum extractor (200) is connected to the main pipeline (140), and the connection portion between the suction section of the vacuum extractor (200) and the main pipeline (140) is a sealing structure.

2. The metal parts moisture vacuum drying device according to claim 1, characterized in that: The part fixing portion (150) is a column (151) extending from the disc surface of the part fixing turntable (110), and any side of the column (151) is provided with a flange (152); The part to be dried has at least one hole; The integral structure formed by the column (151) and the flange (152) is riveted to the hole of the part to be dried.

3. The metal parts moisture vacuum drying device according to claim 1, characterized in that: A heater (121) is arranged around the outer wall of the vacuum cover (120).

4. The metal parts moisture vacuum drying device according to claim 1, characterized in that: The connection portion between the suction section of the vacuum extractor (200) and the main pipeline (140) is a rotating sealing disk.

5. The metal parts moisture vacuum drying device according to claim 1, characterized in that: A first groove (111) is provided on the upper surface of the part fixing turntable (110); a cover edge of the vacuum cover (120) has a first protrusion (122); the first protrusion (122) is engaged and fixed with the first groove (111); At least one of the first groove (111) and the first protrusion (122) is wrapped with a rubber ring, and the rubber ring, the first groove (111) and the first protrusion (122) form a transition fitting structure.

6. The metal parts moisture vacuum drying device according to claim 1, characterized in that: It also includes a driver (300), wherein a pulley (310) is wound around the driver (300) and the part fixing turntable (110).

7. The metal parts moisture vacuum drying device according to claim 1, characterized in that: The starting end of the main pipeline (140) is located at the lower side of the part fixing turntable (110); a first through hole (160) is provided at the center of the part fixing turntable (110); and the main pipeline (140) passes through the first through hole (160) and extends to the top of the vacuum cover (120); The vacuum exhaust pipe (130) is connected to the side wall of the main pipeline (140).

8. The metal parts moisture vacuum drying device according to claim 7, characterized in that: A control panel (141) is provided on the top of the main pipeline (140).

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