WO2010121478A1

WO2010121478A1 - Glue-water-defoaming device

Info

Publication number: WO2010121478A1
Application number: PCT/CN2009/076054
Authority: WO
Inventors: 范继良; 杨明生; 罗文超
Original assignee: 东莞宏威数码机械有限公司
Priority date: 2009-04-24
Filing date: 2009-12-25
Publication date: 2010-10-28
Also published as: CN101537268A; CN101537268B

Abstract

A glue-water-defoaming device suitable for connection with a vacuum-pumping system and an air-compressing system comprises a reservoir (10) with a glue-water inlet (1) and outlet (9), a vacuumizing port (6) and an air-compression port (5). The vacuum-pumping system is connected with the vacuumizing port, and the air-compression port is connected with the air-compression system. The glue-water-defoaming device also comprises a defoaming mechanism (100) which comprises an internal glue-water tube (7) and a hemisphere (8), the inlet of said internal tube being connected with the glue-water inlet (1), and the outlet (72) of said internal tube being arranged above the summit of the hemisphere. By the addition of the hemisphere in the defoaming reservoir, the device effectively increases the contact area during vacuum defoaming, thereby achieving the aim of rapid defoaming.

Description

Glue defoaming device

The invention relates to a glue defoaming device, in particular to a glue defoaming device which achieves the purpose of rapid defoaming by increasing the contact area when vacuum defoaming. Background technique

With the advancement of bonding science, the application of glue has penetrated into various sectors of the national economy, and has become more and more widely used in industry, agriculture, national defense, transportation, and people's daily life. one. The bonding of the glue is mainly caused by the interaction force between the adhesive and the adherent molecules, and the bonding strength between the two bonding objects at the atomic scale can be generated; when the surface of the adherend is not When the glue is sufficiently wetted or has foreign impurities, a weak interaction layer may be formed. The impurities may be derived from air, adherends or adhesives (gas, vapor, grease, oxide film, low molecular weight substance - plasticizer, softener, stable). Agents, residual monomers and other additives); Therefore, the bubble content in the glue is an important indicator of the quality of the glue. However, glue often produces bubbles during the manufacturing process, and glue defoaming is required before the glue is produced and used.

The defoaming methods currently used are mainly divided into chemical methods and physical methods. The chemical method is to add a chemical defoaming agent to the glue to eliminate bubbles. Although this method does not waste time, it often causes the defoaming agent to remain in the glue. Glue deterioration; physical methods include static defoaming method, decompression defoaming method, vacuum defoaming method, etc., such as the Chinese patent number ZL200520012464. 0 "manufacturing of glue supply device for bonding discs" The patent is a vacuum defoaming method. The first step is to first draw the glue into a bucket, then defoam it with a vacuum, and finally use the defoamed glue to be extruded through compressed air. Defoaming using this method does not cause excess impurities to be mixed in the glue to deteriorate, but the disadvantages are also obvious: When the volume of the glue bucket is large, the glue is vacuumed and defoamed at the bottom of the barrel. Bubbles are difficult to pump in a short period of time; when the volume of the glue bucket is small, it can be easily defoamed in a short time, but it cannot meet the needs of normal production.

Therefore, there is a need for a glue defoaming device that is non-polluting, fast in defoaming, and capable of mass production and utilization. Summary of the invention

SUMMARY OF THE INVENTION An object of the present invention is to provide a glue defoaming device which is non-polluting, has a fast defoaming speed, and can be mass-produced and utilized.

In order to achieve the above object, the technical solution provided by the present invention is: providing a glue defoaming device, wherein the glue defoaming device is adapted to be connected with a vacuuming system and an air compression system, and the glue defoaming device comprises a glue defoaming bucket, The glue defoaming bucket has a glue inlet, a glue outlet, a vacuuming port and an air compression port, wherein the vacuuming system is in communication with the vacuuming port, and the air compression port is in communication with the air compression system, wherein a defoaming mechanism, the defoaming mechanism includes an internal glue pipe and a hemispherical spherical surface, and an internal glue inlet of the internal glue pipe is connected to the glue inlet, and an internal glue outlet of the internal glue pipe is located on the spherical surface Above the apex.

Preferably, one end of the inner glue water pipe having an inner glue outlet passes through the spherical surface along a center line of the spherical surface, and the spherical surface is suspended on the inner glue water pipe. Since the inner glue pipe straightly passes through the inside of the hemispherical spherical surface, that is, the inner glue water pipe connects the glue inlet and the spherical apex with a shortest distance (a linear distance of the glue inlet to the apex of the spherical surface); , not only saves the length of the internal glue pipe, thus reducing the cost and the probability of failure of the glue defoaming device, and the glue takes the shortest distance and the fastest time to draw into the apex of the hemispherical outer surface, thereby increasing the glue defoaming. speed. And because the spherical surface is suspended on the internal glue pipe, the bottom of the glue defoaming bucket is connected with the hollow interior of the spherical surface; the glue after the vacuum defoaming flows down, gradually flows into the bottom of the glue defoaming bucket, with As the level of the glue rises, the glue flows into the hollow interior of the hemispherical sphere, which increases the efficiency of the defoaming of the glue by increasing the volume of the glue removing barrel.

Preferably, the spherical surface has an outwardly extending exhaust port. The exhaust port communicates with the spherical hollow interior and the spherical outer surface, so that when the glue flows into the hollow interior of the spherical surface, the gas existing inside the hollow can be quickly discharged through the exhaust port to prevent the glue accumulated in the glue defoaming bucket. The spherical surface seals, so that the glue can not flow into the spherical surface, which greatly reduces the available space of the glue defoaming bucket.

Preferably, the glue inlet has a glue inlet regulating valve, and the glue outlet has a glue outlet regulating valve. When there is no glue in the glue defoaming bucket, open the glue inlet regulating valve, and pump the glue from the glue inlet to the inner glue outlet through vacuum. When the glue liquid level in the glue defoaming bucket reaches a certain height, The inlet regulating valve is closed to stop the glue pumping; after the glue defoaming is completed, the glue outlet regulating valve presses the defoamed glue from the glue outlet through the compressed air for use. The glue inlet regulating valve and the glue outlet regulating valve can effectively control the ingress and egress of the glue in the glue removing barrel, and adjust the speed and quantity of the glue entering and leaving the glue.

Preferably, the glue defoaming bucket is further provided with an upper sensor and a lower sensor, the upper sensor is located below the internal glue outlet, and the lower sensor is located below the upper sensor. When there is no glue in the glue defoaming bucket, the lower sensor sends out a glue-free signal in the barrel, and when the glue liquid level in the defoaming bucket reaches the set stop glue position, the upper sensor sends a signal to stop the glue. In this way, the upper sensor and the lower sensor can determine the glue level of the glue in the bubble tank, thereby judging the progress of the glue defoaming.

Compared with the prior art, since the glue defoaming device of the present invention uses the method of vacuum defoaming to perform defoaming of the glue, it does not affect the quality of the glue compared with the conventional chemical method (ie, defoaming by adding an antifoaming agent). It does not increase the consumption of chemical agents, and is energy-saving and environmentally friendly. Compared with the conventional defoaming device for vacuum defoaming, the present invention is improved in that a hemispherical spherical surface is added to the glue defoaming bucket, and the glue flows along the spherical surface when flowing out from the inner dispensing port. A certain distance reaches the glue defoaming bucket, increasing the contact area when vacuum defoaming, so that the effect of defoaming the glue is more thorough and the speed of defoaming of the glue is improved; and, because the glue is in the whole defoaming process, the glue It will go through a process of flowing along the sphere, and when the sphere is defoamed, the glue will flow on the sphere, so that it can satisfy the large-scale glue defoaming. Correspondingly, the volume of the glue defoaming bucket can be made larger. Therefore, the present invention has no pollution, fast defoaming speed, and can be mass-produced and utilized. DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing the structure of a glue defoaming device of the present invention.

2 is a flow chart of the glue defoaming of the glue defoaming device of the present invention.

Figure 3a is a schematic view of the glue in the glue defoaming device of the present invention.

Figure 3b is a schematic view of vacuum defoaming of the glue defoaming device of the present invention.

Fig. 3c is a schematic view showing the operation of the exhaust port of the glue defoaming device of the present invention.

Figure 3d is a schematic view of the glue discharging device of the present invention. Fig. 3e is a schematic view showing the operation of the glue defoaming device of the present invention.

Fig. 4a is a schematic view showing the structure of another embodiment of the glue defoaming device of the present invention.

Fig. 4b is a schematic view showing the operation of another embodiment of the glue defoaming device of the present invention. detailed description

As shown in FIG. 1 , the glue defoaming device of the present invention comprises a glue defoaming bucket 10 , the glue defoaming bucket 10 comprises a glue inlet 1 , a glue outlet 9 , a vacuuming port 6 and an air compression port 5 , and the pumping The vacuum port 6 is in communication with an evacuation system, and the air compression port 5 is in communication with the air compression system. The glue defoaming device of the present invention further includes a defoaming mechanism 100, the defoaming mechanism 100 including an internal glue pipe and a hemispherical shape. The spherical surface 8, the inner glue inlet 71 of the inner glue water pipe 7 is connected to the glue inlet 1, and the inner glue outlet 72 of the inner glue water pipe 7 is located above the apex 81 of the spherical surface.

Referring to FIG. 2, the steps of using the glue defoaming device of the present invention to perform defoaming of glue are as follows:

( 31) pumping the glue to the hemispherical sphere by vacuum;

(32) The glue flows down the sphere by gravity;

(33) vacuum defoaming the glue on the sphere;

( 34) Press out the bubble with the air bubbles out through the compressed air.

Specifically, the internal glue water pipe 7 of the glue defoaming device of the present invention has a hollow structure, and the hollow structure constitutes a glue guiding passage 7a for the glue to flow, and one end of the internal glue water pipe 7 has an internal glue inlet 71, and the inside The glue inlet 71 is connected to the glue inlet 1; the other end of the internal glue pipe 7 has a plurality of internal glue outlets 72 and openings 70a of the glue passages 7a, and the internal glue outlets 72 are evenly distributed on the internal glue pipes 7 and It is in communication with the glue guide channel 7a. After the glue is drawn from the glue inlet 1 to the internal glue outlet 72, the glue flows along the glue passage 7a to the internal glue outlet 72, and finally the glue flows out from the inner glue outlet 72 and the opening 70a of the guide passage 7a to the surface of the spherical surface 8. .

Specifically, one end of the internal glue water pipe 7 having the internal glue outlet 71 of the glue defoaming device of the present invention passes through the spherical surface 8 along the center line of the spherical surface 8, so that the internal glue outlet 72 is located at the apex 81 of the spherical surface. Above, and the spherical surface 8 is suspended on the inner glue water pipe 7, that is, the spherical surface 8 is suspended in the glue defoaming bucket 10, so that the bottom of the glue defoaming bucket 10 and the hollow interior 82 of the spherical surface 8 are in communication. When the glue is defoamed by vacuum, it flows down, gradually flows into the bottom of the glue bucket, and the bottom of the bucket, with the glue level Ascending, the glue at the bottom of the bucket will flow into the hollow interior 82 of the hemispherical spherical surface 8. More specifically, the spherical surface 8 has an outwardly extending exhaust port 4. The exhaust port 4 communicates with the hollow interior 82 of the spherical surface 8 and the outside of the spherical surface. Thus, when the glue flows into the hollow interior 82 of the spherical surface 8, the gas present in the hollow interior 82 can be quickly discharged through the exhaust port 4 to prevent accumulation. The glue in the glue removing barrel 10 is sealed to the spherical surface 8, so that the glue cannot flow into the spherical surface 8, and the available space of the glue removing barrel 10 is greatly reduced; in order to prevent the glue flowing along the spherical surface from clogging or sealing the exhaust port 4, the row The port 4 is higher than the spherical surface.

Specifically, the glue inlet 1 has a glue inlet regulating valve 11 , and the glue outlet 9 has a glue outlet regulating valve 12 . When there is no glue in the glue removing barrel 10, the glue inlet regulating valve 1 1 is opened, and the vacuum system draws the glue from the glue inlet 1 into the glue removing barrel 10 through the vacuum port 6 at a certain speed, when the glue removes the barrel 1 Q When the glue liquid level reaches a certain height, the inlet regulating valve 11 is closed to stop the glue pumping; after the glue defoaming is completed, the glue outlet regulating valve 12 presses the defoamed glue from the glue outlet 9 through the compressed air to For use. The glue inlet regulating valve 11 and the glue outlet regulating valve 1 2 can effectively control the ingress and egress of the glue in the glue defoaming bucket 10, and adjust the speed and quantity of the glue in and out.

Specifically, the glue defoaming bucket 10 is further equipped with an upper sensor 3 and a lower sensor 2 for sensing the glue liquid level, the upper sensor 3 is located below the internal glue outlet 72, and the lower sensor 2 is located at the It is described below the upper sensor 3. When there is no glue in the glue defoaming bucket 10, the lower sensor 2 sends out a glueless defoaming bucket 10 with no glue signal. When the glue defoaming tank 10 has the glue liquid level reached the set stop glue position, the upper position The sensor 3 sends a signal to stop the glue; thus, the upper sensor 3 and the lower sensor 1 can determine the level of the glue in the glue tank 10, thereby judging the progress of the glue defoaming. More specifically, the upper sensor 3 is mounted on the upper portion of the outer surface of the inner glue pipe 7, and the lower sensor 2 is mounted on the lower portion of the outer surface of the inner glue pipe 7. Of course, the upper sensor 3 and the lower sensor 2 can be installed to be sensitive to glue removal. Any position of the glue level in the bubble tank.

As shown in FIG. 4a, another embodiment of the glue defoaming device of the present invention has the same working principle as the glue defoaming device shown in FIG. 1, and the difference is that the internal glue pipe 7 has internal glue in this embodiment. One end of the outlet 72 is closed; specifically, one end of the internal glue water pipe 7 of the glue defoaming device of the present invention has an internal glue inlet 71, an internal glue inlet 71, and is connected with the glue inlet 1; The other end has a plurality of internal glue outlets 72. The internal glue outlets 72 are evenly distributed on the internal glue water pipe 7 and communicate with the glue passages 7a. When the glue is drawn from the glue inlet 1 to the inside After the glue outlet 72, the glue flows along the glue guide passage 7a to the internal glue outlet 72, and finally the glue flows out from the inner glue outlet 72 to the surface of the spherical surface 8. Compared with the first embodiment, the present embodiment is mainly used for defoaming the glue with a slow flow rate.

The working principle and working process of the glue defoaming device of the present invention are described in detail with reference to FIG. 1 to FIG. 3e:

As shown in Fig. 3a, when there is no glue in the glue defoaming bucket 10, the lower sensor 2 has a signal output, and it is judged that there is no glue in the glue defoaming bucket 10, the vacuuming system starts to work, and the glue removes the air in the barrel 10. The vacuum port 6 is gradually extracted; when the degree of vacuum in the glue removing barrel 10 reaches a certain level, the glue inlet regulating valve 1 1 is opened to start the feeding.

As shown in Fig. 3b, under the action of vacuuming, the glue enters the glue channel 7a of the inner glue pipe 沿着 from the glue inlet 1 in the direction of the arrow, and flows out from the inner glue outlets 72 and 70a and spreads evenly on the spherical surface. 8; the glue spread on the spherical surface 8 flows on the spherical surface 8 in the direction of the arrow by its own gravity, and gradually flows into the bottom of the barrel of the glue defoaming bucket 10, and the glue is in full contact with the outside during the flow process. , to achieve the purpose of quickly eliminating bubbles.

As shown in Fig. 3c, as the glue in the infusion defoaming bucket 10 gradually increases, the glue level of the glue defoaming bucket 10 gradually rises, and a part of the glue flows into the hollow interior 82 of the spherical surface 8, and the gas in the hollow interior 82 follows. The direction of the arrow is discharged through the exhaust port 4.

As shown in FIG. 3d, as the glue enters the hollow interior 82, the glue liquid level of the hollow interior 82 of the spherical surface 8 gradually rises. When the upper sensor 3 in the glue defoaming bucket 10 senses the glue, the inlet regulating valve 11 is closed and the pumping is stopped. Glue; After the vacuum defoaming process is completed, the vacuum system is turned off, and the compressed air system is turned on. The air having a larger pressure enters the glue defoaming tank 10 through the air compression port 5, and the pressure inside the glue defoaming tank is 10 When it reaches a certain level, the glue outlet regulating valve 12 is opened, and the compressed air presses the glue which has been removed from the bubble in the direction of the arrow from the glue outlet 9.

As shown in Fig. 4b, the working principle and working process of another embodiment of the glue defoaming device of the present invention are the same as those of the embodiment shown in Fig. 1, and will not be repeated here.

The glue defoaming device of the invention adopts the method of vacuum defoaming to perform defoaming of the glue, and compared with the traditional chemical method (that is, adding defoaming agent for defoaming), the quality of the glue is not affected, and the consumption of the chemical agent is not increased. Energy saving and environmental protection. The present invention is compared with a conventional glue defoaming device using a vacuum defoaming method The improvement consists in adding a hemispherical spherical surface 8 in the glue defoaming bucket 10, and when the glue flows out from the inner dispensing opening 72, 72 and the opening 70a of the guiding passage 7a, it will flow along the spherical surface 8 to reach the glue. In addition to the bubble barrel 10, the contact area when vacuum defoaming is increased, so that the effect of defoaming the glue is more thorough and the speed of defoaming of the glue is improved; in addition, since the glue is in the whole defoaming process, the glue will experience a process of flowing along the spherical surface 8, and when the spherical surface 8 defoams the glue, the glue flows on the spherical surface 8, so that large-scale glue defoaming can be satisfied, and accordingly, the volume of the glue defoaming bucket 10 can be made. Therefore, the invention has the advantages of no pollution, fast defoaming speed, and large-scale production and utilization of the glue defoaming device. The vacuuming system, the air compression system, the glue inlet regulating valve 11 of the glue defoaming device of the present invention, The control principle and structure between the glue outlet regulating valve 12, the upper sensor 3 and the lower sensor 2 are well known to those skilled in the art and will not be described in detail herein.

The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, and the equivalent changes made by the scope of the present invention remain within the scope of the present invention.

Claims

Rights request

1. A glue defoaming device, suitable for connecting with a vacuuming system and an air compression system, the glue defoaming device comprises a glue defoaming barrel, the glue defoaming barrel has a glue inlet, a glue outlet, a vacuum port and air compression The vacuuming system is in communication with the vacuuming port, and the air compression port is in communication with the air compression system, and is characterized in that: further comprising a defoaming mechanism, the defoaming mechanism comprises an internal glue pipe and a hemisphere a spherical surface, an internal glue inlet of the internal glue pipe is connected to the glue inlet, and an internal glue outlet of the internal glue pipe is located above the apex of the spherical surface.

2. The glue defoaming device according to claim 1, wherein: one end of the inner glue water pipe having an inner glue outlet passes through the spherical surface along a center line of the spherical surface, and the spherical surface is suspended On the internal glue pipe.

The glue defoaming device according to claim 1, wherein the spherical surface has an exhaust port extending outward.

4. The glue defoaming device according to claim 1, wherein: the glue inlet has a glue inlet regulating valve, and the glue outlet has a glue outlet regulating valve.

The glue defoaming device according to claim 1, wherein: the glue defoaming barrel is further provided with an upper sensor and a lower position sensor, wherein the upper sensor is located under the internal glue outlet, the lower position The sensor is located below the upper sensor.