阅读说明：本技术 真空浸渍装置 (Vacuum impregnation device ) 是由 吴文章 杨星天 孟小琼 于 2019-04-24 设计创作，主要内容包括：一种用于真空浸渍工件(3)的真空浸渍装置(1),真空浸渍装置(1)包括用于储存胶水(13)的真空浸渍罐(5),真空浸渍罐(5)包括侧壁(15)；与真空浸渍罐(5)的侧壁(15)耦接的滑块(7),滑块(7)适于将工件(3)支撑在胶水(13)上方；以及电磁控制器(11),电磁控制器(11)设置在真空浸渍罐(5)外,并操作成使滑块(7)向真空浸渍罐(5)的侧壁(15)移动,以使得工件(3)脱离落入胶水(13)。真空浸渍装置(1)具有结构简单、成本低、操作方便的优点。(A vacuum impregnation device (1) for vacuum impregnating a workpiece (3), the vacuum impregnation device (1) comprising a vacuum impregnation tank (5) for storing glue (13), the vacuum impregnation tank (5) comprising a side wall (15); -a slide (7) coupled to a side wall (15) of the vacuum impregnation tank (5), the slide (7) being adapted to support the workpiece (3) above the glue (13); and an electromagnetic controller (11), wherein the electromagnetic controller (11) is arranged outside the vacuum impregnation tank (5) and is operated to move the slider (7) to the side wall (15) of the vacuum impregnation tank (5) so as to enable the workpiece (3) to be separated from the glue (13). The vacuum impregnation device (1) has the advantages of simple structure, low cost and convenient operation.)

1. A vacuum impregnation apparatus for vacuum impregnating a workpiece, the vacuum impregnation apparatus comprising:

a vacuum impregnation tank for storing glue, the vacuum impregnation tank comprising a sidewall;

a slide coupled to a sidewall of the vacuum impregnation tank, the slide adapted to support the workpiece above the glue; and

an electromagnetic controller disposed outside the vacuum impregnation tank and operable to move the slider toward a sidewall of the vacuum impregnation tank to cause the workpiece to drop out of the glue.

2. The vacuum impregnation apparatus of claim 1, further comprising a transmission mechanism coupled to the slide, the transmission mechanism being disposed within the vacuum impregnation tank, the electromagnetic controller being operable to move the slide toward the sidewall of the vacuum impregnation tank through the transmission mechanism.

3. The vacuum impregnation apparatus of claim 2, wherein the transmission mechanism comprises a link connected to the slider at one end and to the magnetic substance at the other end, and the magnetic substance is disposed at a position corresponding to the electromagnetic controller.

4. The vacuum impregnation apparatus of claim 3, wherein the linkage comprises a first linkage and a second linkage connected to each other.

5. The vacuum impregnation apparatus of claim 1, further comprising a spring, the slider coupled with a sidewall of the vacuum impregnation tank by the spring.

6. Vacuum impregnation apparatus according to claim 5, wherein said slider is adapted to be moved towards the side wall of the vacuum impregnation tank when said solenoid control is switched on, said slider being adapted to be reset by a spring when said solenoid control is switched off.

7. The vacuum impregnation apparatus of claim 1, further comprising a basket for holding the workpiece, the basket including a lifting lug adapted to be supported by the slide.

8. The vacuum impregnation apparatus of claim 7, further comprising a gripping member coupled to a sidewall of the vacuum impregnation tank, the gripping member adapted to grip the basket via the lifting lug.

9. The vacuum impregnation apparatus of claim 7, wherein the basket further comprises a projection on a side, the side wall of the vacuum impregnation tank being provided with a vertically extending guide slot, the projection being adapted to be guided in the guide slot.

10. The vacuum impregnation apparatus of claim 1, wherein the vacuum impregnation tank comprises a tank cover and a tank body, the tank cover being adapted to open and close the tank body.

11. The vacuum impregnation apparatus of claim 10, further comprising a vacuum pump coupled to the canister lid or the canister body.

12. The vacuum impregnation apparatus of claim 10, wherein compressed air flows into the vacuum impregnation tank through the tank cover or the tank body.

13. The vacuum impregnation apparatus of claim 10, further comprising a pressure gauge coupled to the canister lid or body.

14. A vacuum impregnation apparatus comprising:

a vacuum impregnation tank comprising a sidewall;

a slide coupled to a sidewall of the vacuum impregnation tank; and

an electromagnetic controller disposed outside the vacuum impregnation tank and operable to move a slider toward a sidewall of the vacuum impregnation tank.

Technical Field

The invention relates to the technical field of vacuum impregnation, in particular to a vacuum impregnation device.

Background

Many pores are generally present in metal castings such as cast aluminum and cast iron, and in electronic parts in which metal and plastic are co-molded. These pores may cause leakage problems and thus serious quality problems. For the automotive industry and the electronics industry, liquid is not allowed to leak through these pores.

The vacuum impregnation technology is an effective measure for solving the leakage problem of the metal casting. The vacuum impregnation technology is to permeate impregnant into pores of castings through a vacuum pressurization process to achieve the purposes of pore filling, sealing, leakage prevention and high pressure resistance, thereby greatly improving the performance of metal castings.

Currently, there are mainly two types of vacuum impregnation devices. One type of apparatus first vacuums and maintains a vacuum in a vacuum impregnation tank, and then transfers glue from a storage tank to the vacuum impregnation tank during the impregnation stage to impregnate the work piece. During the impregnation stage, a high air pressure or higher may be applied. Another type of device comprises an inner cylinder for storing glue and an outer cylinder for fixing the workpiece. The inner cylinder body can move up and down, and the outer cylinder body is static. In the vacuum stage, the workpiece is above the glue. In the dipping stage, the work piece is dipped in the glue by moving the inner cylinder upward to dip the work piece.

The two types of devices are complex in structure and high in construction and operation cost.

Therefore, there is a need to improve existing vacuum impregnation devices.

Disclosure of Invention

The invention aims to improve the existing vacuum impregnation device and provide a novel vacuum impregnation device. The device has the advantages of simple structure, low cost and convenient operation.

According to one aspect of the present disclosure, a vacuum impregnation apparatus for vacuum impregnating a workpiece is provided. The vacuum impregnation device comprises: a vacuum impregnation tank for storing glue, the vacuum impregnation tank comprising a sidewall; a slide coupled with the sidewall of the vacuum impregnation tank, the slide adapted to support the workpiece above glue; and the electromagnetic controller is arranged outside the vacuum impregnation tank and is operated to enable the sliding block to move towards the side wall of the vacuum impregnation tank so as to enable the workpiece to be separated from the glue and fall into the glue.

In some embodiments of the invention, the vacuum impregnation apparatus further comprises an actuator coupled to the slide. The transmission mechanism is arranged in the vacuum impregnation tank. And the electromagnetic controller moves the slide block to the side wall of the vacuum impregnation tank through the transmission mechanism.

In some embodiments of the invention, the transmission mechanism comprises a link and a magnetic substance. One end of the connecting rod is connected with the sliding block, the other end of the connecting rod is connected with the magnetic substance, and the magnetic substance is arranged at a position corresponding to the electromagnetic controller.

In some embodiments of the invention, the link comprises a first link and a second link connected to each other.

In some embodiments of the invention, the vacuum impregnation device further may comprise a spring. The slider is coupled to a sidewall of the vacuum impregnation tank by a spring.

In some embodiments of the invention, the slider is adapted to be moved towards the side wall of the vacuum impregnation tank when the solenoid control is switched on, the slider being adapted to be reset by a spring when the solenoid control is switched off.

In some embodiments of the invention, the vacuum impregnation apparatus further may comprise a basket for holding the workpiece. The basket includes a lifting lug adapted to be supported by the slide.

In some embodiments of the present invention, the vacuum impregnation apparatus further may include a gripping member coupled to a sidewall of the vacuum impregnation tank. The gripping part is suitable for gripping the net basket through the lifting lug.

In some embodiments of the invention, the basket further comprises a protrusion on the side. And the side wall of the vacuum impregnation tank is provided with a vertically extending guide groove. The projection is adapted to be guided in the guide groove.

In some embodiments of the invention, the vacuum impregnation tank comprises a tank lid and a tank body, the tank lid being adapted to open and close the tank body.

In some embodiments of the present invention, the vacuum impregnation apparatus further may include a vacuum pump coupled to the canister lid or the canister body.

In some embodiments of the invention, compressed air flows into the vacuum impregnation tank through the tank lid or the tank body.

In some embodiments of the present invention, the vacuum impregnation apparatus further may include a pressure gauge coupled to the canister lid or canister body.

According to another aspect of the present disclosure, there is provided a vacuum impregnation apparatus, which may include a vacuum impregnation tank having a sidewall; a slider coupled to a sidewall of the vacuum impregnation tank; and an electromagnetic controller disposed outside the vacuum impregnation tank and operable to move the slider toward a sidewall of the vacuum impregnation tank through a transmission mechanism.

The vacuum impregnation device of the invention has the following technical effects:

1. the vacuum impregnation device has the advantages of simple structure and low cost.

2. The vacuum impregnation process requires only turning on and off the electromagnetic control, which is easier to handle than transferring glue or lifting the inner cylinder.

3. The vacuum impregnation apparatus of the present invention improves the airtightness and robustness of the vacuum impregnation tank because no part penetrates through the sidewall of the vacuum impregnation tank to handle the vacuum impregnation process.

The above advantages, other advantages and features will become apparent from the following detailed description of the preferred embodiments.

Drawings

For a better understanding of the present invention, reference is made to the following detailed description of the invention taken in conjunction with the accompanying drawings.

Fig. 1 is a side view of a vacuum impregnation apparatus according to an exemplary embodiment of the present invention.

Fig. 2 is a partially enlarged view of a vacuum impregnation device according to an exemplary embodiment of the present invention.

Fig. 3 is a top view of a vacuum impregnation apparatus according to an exemplary embodiment of the present invention.

Fig. 4 is a partially enlarged view of a vacuum impregnation device according to another exemplary embodiment of the present invention.

Detailed Description

As one of ordinary skill in the art will appreciate, various features of the embodiments shown and described with respect to any one of the figures may be combined with features shown in one or more other figures to produce other embodiments not explicitly shown or described. The combination of features shown provides a representative embodiment of a typical application. However, various combinations and modifications of the features are possible in light of the teachings of the present disclosure, for particular applications or implementations.

In the present specification, the terms "upper", "lower", "left", "right", and the like are used merely for convenience and are not restrictive.

Fig. 1 and 2 are a side view and a partially enlarged view of a vacuum impregnation apparatus 1 according to an exemplary embodiment of the present invention. The vacuum impregnation device is used for vacuum impregnation of the workpiece 3. The workpiece 3 may be a metal casting such as cast aluminum, cast iron, or the like, and an electronic part co-molded of metal and plastic, which generally have fine pores.

As shown in the figure, the vacuum impregnation apparatus 1 mainly includes a vacuum impregnation tank 5, two sliders 7, two transmission mechanisms 9, and two electromagnetic controllers 11.

The vacuum impregnation tank stores glue 13. The glue may be any suitable type of glue that may be used to vacuum impregnate a workpiece. For example, the glue may be Henkel's Loctite resin 90C glue. The vacuum impregnation tank 5 comprises a side wall 15.

Two slides 7 are arranged in an opposing manner in the vacuum impregnation tank 5. Two slides 7 are coupled on the side wall 15 of the vacuum impregnation tank 5. The slide 7 supports the work piece 3 above the glue 13, the glue level being shown by the dashed line L in fig. 1.

Each transmission mechanism 9 is coupled to a corresponding slide 7. The electromagnetic controller 11 is provided outside the vacuum impregnation tank 5. It should be understood that the "electromagnetic controller 11 is provided outside the vacuum impregnation tank 5" herein includes: in at least the following examples: 1) the electromagnetic controller 11 is arranged outside the vacuum impregnation tank 5 and does not contact the side wall 15 of the vacuum impregnation tank 5; 2) the electromagnetic controller 11 is physically attached to the outer surface of the side wall 15 of the vacuum impregnation tank 5; 3) a groove is formed on the outer surface of the side wall 15 of the vacuum impregnation tank 5, and the solenoid controller is partially or entirely fitted into the groove by welding or screwing. Each electromagnetic control 11 is operable to move the respective slide 7, through the respective transmission 9, towards the side wall 15 of the vacuum impregnation tank 5, so that the workpiece 3 is no longer supported by the slide 7 and falls under gravity into the glue 13. The workpiece 3 is shown in dashed lines in fig. 1 in a state immersed in the glue 13.

As shown in fig. 3, the slider 7 is supported on the bracket 16. The slider 7 can slide on the upper surface of the bracket 16. It should be understood that rollers may be mounted between the slider 7 and the upper surface of the bracket 16 to facilitate sliding of the slider 7.

It should be understood that the number of the slider 7, the transmission mechanism 9 and the electromagnetic controller 11 may be one or more than two. For example, three slides, three actuators and three electromagnetic controllers may be provided evenly around the side wall of the vacuum impregnation tank.

When the electromagnetic control 11 is switched on, it generates an electromagnetic force which acts on the transmission 9, which transmission 9 in turn causes the slider 7 to move towards the side wall 15 of the vacuum impregnation tank 5. Thus, no element passes through the side wall 15 of the vacuum impregnation tank 5 to move the slider 7, which leaves the side wall 15 of the vacuum impregnation tank 5 intact. This arrangement improves the airtightness of the vacuum impregnation tank 5. It is easier to maintain vacuum or higher pressure due to good gas tightness. Furthermore, the robustness of the vacuum impregnation tank 5 is improved, and thus the vacuum impregnation tank 5 can withstand higher pressures.

As shown in fig. 1 and 2, in the illustrated drawings, the transmission mechanism 9 includes a link 17 and a magnetic substance 19. The magnetic substance 19 here includes a magnet or a metallic substance that can be attracted by a magnet. The connecting rod 17 is connected to the slider 7 at one end and to the magnetic substance 19 at the other end. The magnetic substance 19 is provided at a position corresponding to the electromagnetic controller 11. Specifically, the link 17 includes a first link 21 and a second link 23 connected to each other. The first link 21 is also connected to the slider 7 and the second link 23 is also connected to the magnetic substance 19. It should be understood that the linkage 17 may include more than two linkages. The connections between the first link 21 and the slider 7, between the first link 21 and the second link 23, and between the second link 23 and the magnetic substance 19 are pivotal connections. It should be understood that the transmission mechanism may be any structure as long as it can move the slider toward the sidewall of the vacuum impregnation apparatus by the electromagnetic force of the electromagnetic controller. Through the transmission mechanism, the slide block can move for a longer distance by the micro-movement of the magnetic substance.

It should be understood that in some embodiments, the vacuum impregnation apparatus may not include an actuator. In such embodiments, the slider itself may be a magnet or a metallic substance that may be attracted by a magnet. The electromagnetic controller directly applies electromagnetic force to the slider 7 to move the slider toward the side wall of the vacuum impregnation tank.

Fig. 3 is a plan view of the vacuum impregnation device 1 according to an exemplary embodiment of the present invention. As shown in fig. 2 and 3. In the illustrated figure, the vacuum impregnation device 1 further comprises two pairs of springs 25. Each slider 7 is coupled to the side wall 15 of the vacuum impregnation tank 5 by a respective pair of springs 25. When the electromagnetic control 11 is on, the slider 7 moves towards the side wall 15 of the vacuum impregnation tank 5, and when the electromagnetic control 11 is off, the slider 7 is restored by a respective pair of springs 25. It will be appreciated that in some embodiments, the slider is moved towards the side wall of the vacuum impregnation tank when the solenoid control is off, and the slider is returned by a spring when the solenoid control is on. It should also be understood that one or more than two springs may be provided for each slider.

Fig. 4 is a partially enlarged view of a vacuum impregnation device according to another exemplary embodiment of the present invention. As shown in fig. 4, the transmission mechanism includes a link and a magnetic substance 19. The magnetic substance 19 here includes a magnet or a metallic substance that can be attracted by a magnet. The link includes a first link 21 and a second link 23 connected to each other. The first link 21 is also connected to the slider 7, and the second link 23 is also connected to the magnetic substance 19. The magnetic substance 19 is pivoted to the side wall 15 of the vacuum impregnation tank 5. The magnetic substance 19 is disposed at a position corresponding to the solenoid controller 11. The slider 7 is coupled to the side wall 15 of the vacuum impregnation tank 5 by a pair of springs 25. When the electromagnetic control 11 is on, the slider 7 moves towards the side wall 15 of the vacuum impregnation tank 5, and when the electromagnetic control 11 is off, the slider 7 is restored by the spring 25. The slider 7 is supported on a bracket 16. In this embodiment, the magnetic substance 19 is located above the slider 7.

As shown in fig. 1, in the illustrated figure, the vacuum impregnation apparatus 1 further comprises a basket 27 for holding the workpiece 3. The basket 27 is rectangular and has an open top. The workpiece 3 is held in the basket 27. With the basket 27, it is easier to hold the work piece 3, especially when a plurality of work pieces need to be vacuum-impregnated at once or the work pieces have irregular shapes. It should be understood that other types of components may be used to hold the workpiece.

As shown in fig. 1, the basket 27 is shown to comprise two lifting lugs 29, each lifting lug 29 being supportable by a respective slide 7. The work piece 3 is supported more easily above the glue 13 by the lifting lugs 29 of the basket 27. In addition, when the dipping process is completed, the operator or robot can lift the basket 27 by means of the lifting lugs 29 to take the work piece 3 out of the glue 13. It will be appreciated that in some embodiments where a basket is not used, the workpiece may include a portion that may be directly supported by the slide, or the lifting lug may be mounted on the workpiece so that it may be supported by the slide.

As shown in fig. 1, in the illustrated figure, the vacuum impregnation device further comprises two gripping members 31. Gripping members 31 are coupled to the side walls 15 of the vacuum impregnation tank 5, each gripping member 31 being arranged below a corresponding slide 7, the gripping members 31 being capable of gripping the lifting lugs 29 of the basket 27 and thus the basket 27 when the work piece 3 is released and falls into the glue 13. The work piece 3 in the basket 27 can thus be held in the middle of the glue 13, which can impregnate all surfaces of the work piece 3. It will be appreciated that in some embodiments where no gripping means are provided, the basket may fall to the bottom of the vacuum impregnation tank. The bottom of the vacuum impregnation tank may be circular so that the work piece in the basket may still be held in the middle of the glue so that all surfaces of the work piece may be impregnated.

As shown in fig. 3, in the illustrated figure, the basket 27 further includes two protrusions 33 located on opposite sides of the basket 27. The side wall 15 of the vacuum impregnation tank 5 is provided with two vertically extending guide grooves 35. Each projection 33 is guided in a corresponding guide groove 35. Thus, the basket 27 may fall vertically into the glue 13. Specifically, each guide groove 35 is formed by two parallel plates connected to the side wall 15 of the vacuum impregnation tank 5 and extending vertically in parallel. This arrangement helps the basket to fall vertically and facilitates the gripping members 31 catching the basket 27 via the lifting lugs 29. It should be understood that in some embodiments, the projections and guide slots may not be provided. In some embodiments, the four vertical edges of the basket (when the basket has a cubic shape) may be bounded by the side walls of the vacuum impregnation tank so that the basket may fall vertically.

As shown in fig. 1, the vacuum impregnation tank includes a tank cover 37 and a tank body 39. The can lid 37 can open and close the can body 39. The lid 37 and the can 39 are connected by screwing a flange of the lid 37 to a flange of the can 39. Glue 13 may be injected into can 39 through an opening in can 39. The basket 27 with the workpiece 3 mounted therein is placed in the tank 39 through the opening of the tank 39.

As shown in fig. 1, in the illustrated figure, the vacuum impregnation apparatus further includes a vacuum pump 41, the vacuum pump 41 is coupled to the canister cover 37, and the vacuum pump 41 can draw a vacuum in the vacuum impregnation canister 5 during a vacuum stage.

As shown in fig. 1, in the illustrated figure, the compressed air 43 may flow into the vacuum impregnation tank 5 through the tank cover 37, thereby pressurizing the vacuum impregnation tank 5. The vacuum impregnation device further comprises a pressure gauge 45. A pressure gauge 45 is coupled to the canister cap 37. The pressure gauge may help to detect the pressure of the air inside the vacuum impregnation tank 5.

It should be appreciated that in some embodiments, a vacuum pump and a pressure gauge are coupled to the tank through which compressed air flows into the vacuum impregnation tank.

The vacuum impregnation process in the vacuum impregnation apparatus 1 of the present invention will be explained below. First, the basket 27 and the workpiece 3 held therein are placed in the pot 39 and supported on the slide 7 by the lifting lugs 29. The can lid 37 then closes the can body 39. In the vacuum stage, the vacuum pump 41 evacuates the air in the impregnation tank 5. The workpiece 3 is held for a period of time in the vacuum phase. Thereafter, the electromagnetic controller 11 is turned on to attract the magnetic substance 19 toward the side wall 15 of the vacuum impregnation tank 5, and further, the second link 23 and the first link 21 are pulled toward the side wall 15 of the vacuum impregnation tank 5. Accordingly, the slider 7 moves toward the side wall 15 of the vacuum impregnation tank 5. The lifting eye 29 of the basket 27 then loses the support of the slide 7 and the basket 27 falls under gravity into the glue 13. The basket 27 is lowered with its protrusion 33 guided in the guide groove 35 until the lifting lug 29 of the basket 27 is caught by the catch 31. The basket 27 with the work piece 3 inside is held in a central position in the glue 13. The vacuum phase is maintained for a few minutes and then the vacuum is broken so that the pores of the work piece 3 are impregnated with the glue 13. During the impregnation stage, compressed air 43 is optionally but preferably introduced to pressurize the vacuum impregnation tank 5 through the tank lid 37. After the impregnation stage is completed, the vacuum impregnation tank 5 is opened and the basket 27 is removed by lifting the lifting lug 29. The vacuum impregnation process is completed and the workpiece is then transferred to the next process, typically a cleaning process and a curing process.

From the above description, the person skilled in the art will be able to understand the solutions and advantages of the vacuum impregnation device according to the present invention. For example, the vacuum impregnation device of the present invention has a simple structure and low cost. And only the electromagnetic controller needs to be turned on and off, and the vacuum impregnation process is easier to handle than transferring glue or lifting the inner cylinder. The vacuum impregnation apparatus of the present invention improves the airtightness and robustness of the vacuum impregnation tank because no parts penetrate the sidewall of the vacuum impregnation tank to handle the vacuum impregnation process.

Those skilled in the art will readily recognize various changes and modifications that may be made therein without departing from the true spirit and scope of the invention as defined by the following claims.