CN114592171A

CN114592171A - Film coating machine

Info

Publication number: CN114592171A
Application number: CN202210073357.7A
Authority: CN
Inventors: 卞睿康; 刘越鹏; 卞春荣; 宁学军; 刘开; 朱凌萱; 刘若可
Original assignee: Hangzhou Qiaoweina Technology Co ltd
Current assignee: Hangzhou Qiaoweina Technology Co ltd
Priority date: 2022-01-21
Filing date: 2022-01-21
Publication date: 2022-06-07
Anticipated expiration: 2042-01-21
Also published as: CN114592171B

Abstract

The invention discloses a film coating machine, comprising: the upper part of the tank body is provided with a feed inlet; the coating washing basket frame is arranged in the tank body and used for bearing a piece to be coated, and comprises a top plate, a bottom plate and a connecting piece for connecting the top plate and the bottom plate; the lifting assembly is used for driving the coating film washing basket frame to move between a first position and a second position in the groove body; when the coating washing basket is positioned at the first position, the bottom plate divides the inner cavity of the tank body into an upper cavity communicated with the feed inlet and a lower cavity for containing a coating liquid; when the film-coating basket is positioned at the second position, the top plate divides the inner cavity of the tank body into the upper cavity and the lower cavity. When the workpiece is coated and dried, the workpiece is in a closed space, the coating liquid can not volatilize outwards theoretically, loss caused by volatilization of the expensive coating liquid is saved for customers, and the whole working process is not in contact with the outside.

Description

Film coating machine

Technical Field

The invention relates to the technical field of coating, in particular to a coating machine.

Background

It is known that the surface of some materials can be coated with a thin film to provide the materials with many new and good physical and chemical properties. In the 70 s of the 20 th century, the methods for plating films on the surfaces of objects mainly include electroplating methods and chemical plating methods. In the former method, an electrolytic solution is electrolyzed by applying current, and the electrolyzed ions are plated on the surface of a substrate as the other electrode, so that the conditions for such plating are that the substrate must be a good electrical conductor and the film thickness is difficult to control. The latter adopts chemical reduction method, the film material must be prepared into solution, and can quickly take part in reduction reaction, and the film-plating method not only has poor bonding strength of the film, but also can not uniformly and easily control the film plating, and at the same time, can produce a large amount of waste liquor to cause serious pollution. Therefore, these two coating processes, which are called wet coating processes, are greatly limited.

The vacuum coating technology is a process of placing a material to be coated and a substrate to be coated in a vacuum chamber, heating the material to be coated by adopting a certain method, evaporating or sublimating the material, sputtering the material to be coated on the surface of the substrate to be coated for condensation film formation, and a vacuum coating machine is the most important component in the process.

The vacuum coating machine mainly refers to a coating machine which needs to be carried out under a higher vacuum degree, and specifically comprises various types, including vacuum ion evaporation, magnetron sputtering, MBE molecular beam epitaxy, PLD laser sputtering deposition and the like. The main idea is to divide into evaporation and sputtering.

However, in the existing vacuum coating production line, the vacuum coating chamber usually has only one large chamber, and one chamber can only be correspondingly provided with one air exhaust system for vacuum pumping treatment, and the defects of the method are as follows: because the space of the cavity is very large, only one air pumping system works normally, the consumed time is long, in addition, one air pumping system carries out vacuum pumping treatment on the cavity, the air pressure in the cavity is unbalanced in the air pumping process, and therefore the nonuniformity of air pumping is promoted, and after a workpiece enters the high cavity, the production efficiency and the quality are reduced.

The patent specification with the publication number of CN109957783B discloses a high-efficiency linear vacuum coating production line for coating the surface of a workpiece, which comprises an unreeling chamber, and a cleaning chamber, a vacuum coating chamber, a cooling chamber and a reeling chamber which are sequentially and fixedly connected in series at the rear side of the unreeling chamber through bolts and sealing gaskets. This a high efficiency straight line type vacuum coating assembly line for work piece surface coating, when in actual use, let the work piece in proper order through unreeling, high-pressure washing, vacuum coating, cooling and rolling processing, wherein the vacuum coating room of vacuum coating link divides into three small-size vacuum coating rooms such as big through the baffle to these three small-size vacuum coating rooms correspond respectively and set up evacuation system and steam heating source.

According to the scheme, the workpiece surface coating zone is divided into three or more sections, so that the efficiency and quality during coating treatment are guaranteed, the workpiece surface coating time is greatly saved, the coating cost is reduced, the structure is complex, and the problem of volatilization and leakage of coating liquid still exists.

Disclosure of Invention

The invention aims to provide a film coating machine which can ensure that a film coating liquid can not volatilize and leak in the process of coating and drying a workpiece.

A coater, comprising:

the upper part of the tank body is provided with a feed inlet;

the coating film washing basket frame is arranged in the tank body and is used for bearing a piece to be coated, and the coating film washing basket frame comprises a top plate, a bottom plate and a connecting piece for connecting the top plate and the bottom plate;

the lifting assembly is used for driving the coating film washing basket frame to move between a first position and a second position in the groove body; when the coating washing basket is positioned at the first position, the bottom plate divides the inner cavity of the tank body into an upper cavity communicated with the feed inlet and a lower cavity for containing a coating liquid; when the film-coating basket is positioned at the second position, the top plate divides the inner cavity of the tank body into the upper cavity and the lower cavity.

In the scheme, the whole process of coating and drying the workpiece is finished in the tank body, the coating liquid cannot volatilize outwards, and meanwhile, the lower cavity is sealed by the top plate and the bottom plate of the coating washing basket frame, so that the coating liquid is effectively prevented from volatilizing due to temperature rise.

Preferably, the tank body consists of an upper tank body and a lower tank body, a baffle is arranged at the joint of the upper tank body and the lower tank body, and the baffle is positioned between the top plate and the bottom plate; when the coating basket is located at the first position, the bottom plate is abutted to the baffle, and when the coating basket is located at the second position, the top plate is abutted to the baffle.

Further preferably, sealing rings are arranged between the baffle and the bottom of the upper tank body and between the baffle and the top of the lower tank body.

When the top plate and the bottom plate are abutted to the baffle, the baffle can extrude the bottom of the upper groove body and the top of the lower groove body, so that the sealing effect of the upper cavity and the lower cavity is improved.

Preferably, the lifting assembly comprises a first driving piece located at the top of the trough body, and the driving end of the first driving piece penetrates through the top of the trough body to be connected with the top plate.

Preferably, the lifting assembly further comprises a guide pillar which is arranged at the top of the groove body in a sliding mode along the lifting direction, and one end of the guide pillar is fixed on the top plate.

Preferably, a heating pipe for heating the coating liquid is arranged in the lower cavity of the tank body, and a condensing coil for refrigerating the coating liquid is arranged on the inner wall of the lower cavity.

When the temperature is ultrahigh, the condensing coil cools the coating liquid, and when the temperature is ultralow, the heating pipe heats the coating liquid.

Preferably, the outer wall of the lower cavity corresponding to the tank body is provided with a vibrating plate component for enabling the temperature of the coating liquid to be uniform. The vibration plate component can make the temperature of the coating liquid in the tank body uniform, so that the temperature of the coating liquid is in an optimal state.

Preferably, the outer wall of the upper cavity corresponding to the groove body is provided with a hot air inlet and a hot air outlet for the inflow and outflow of hot air, so as to form a closed internal circulation.

The hot air inlet is externally connected with a high-pressure fan, and the high-pressure fan blows hot air into the upper cavity through the hot air inlet to dry the workpiece; the hot air outlet is externally connected with a spiral condenser and used for condensing and recycling the coating liquid volatilized from the hot air outlet.

Preferably, a movable door for opening and closing the feeding hole is arranged at the feeding hole.

Preferably, an access door is arranged on the outer wall of the upper cavity corresponding to the tank body and is used for maintaining and checking mechanical parts in the film coating equipment; an observation window is arranged on the outer wall of the corresponding lower cavity and used for observing the film coating condition of the workpiece in the groove body.

The invention has the beneficial effects that:

when the workpiece is coated and dried, the workpiece is in a closed space, the coating liquid can not volatilize outwards theoretically, loss caused by volatilization of the expensive coating liquid is saved for customers, and the whole working process is not in contact with the outside. Meanwhile, all functions of the invention are integrated in the tank body, thus greatly reducing the occupation of the customer site.

Drawings

FIG. 1 is a side cross-sectional view of the present invention;

fig. 2 is a front view of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 and 2, a coating machine comprises a tank body 1, and coating and drying of workpieces are completed in an inner cavity of the tank body 1. The tank body 1 consists of an upper tank body 11 and a lower tank body 12, and specifically, the upper tank body 11 is connected with the lower tank body 12 through a flange; the inner cavity of the upper tank body 11 corresponds to the upper cavity of the tank body 1, and the inner cavity of the lower tank body 12 corresponds to the lower cavity of the tank body 1. The lower cavity is used for containing coating liquid, namely, the coating of the workpiece is finished in the lower cavity, and the drying of the workpiece is finished in the upper cavity. Meanwhile, a feed inlet is arranged at the upper part of the groove body 1 corresponding to the upper cavity.

The tank body 1 is internally provided with a film-coated basket washing frame 2, and the film-coated basket washing frame 2 comprises a top plate 21, a bottom plate 22 and a connecting piece 23 for connecting the top plate 21 and the bottom plate 22; wherein connect even 23 to keep away from the feed inlet setting, cause the interference when avoiding getting into to the work piece.

The top of the tank body 1 is provided with a lifting assembly, and the lifting assembly comprises a first driving piece 31 positioned at the top of the tank body 1 and guide columns 32 arranged at four corners of the top of the tank body 1 in a sliding manner. The guide post 32 is connected with the top of the tank body 1 in a sliding way through a linear bearing. The driving end of the first driving member 31 passes through the top of the tank body 1 and is connected with the top plate 21 to drive the film-coated basket washing frame 2 to move between the first position and the second position in the tank body 1, and simultaneously, one end of the guide post 32 is fixed on the top plate 21 to realize the guiding function. Wherein, the first driving member 31 adopts a driving cylinder.

In this embodiment, the first position is specifically the position where the film-coated rim 2 is located at the top, and the second position is the position where the film-coated rim 2 is located at the bottom. When the film-coated basket washing frame 2 is located at the first position, the bottom plate 22 separates the upper cavity and the lower cavity of the tank body 1, so that the upper cavity and the lower cavity form an independent sealed environment, and when the film-coated basket washing frame 2 is located at the second position, the top plate 21 separates the upper cavity and the lower cavity of the tank body 1, so that the upper cavity and the lower cavity form an independent sealed environment.

Specifically, a square hollow baffle 4 is arranged between the flanges of the upper tank body 11 and the lower tank body 12. The baffle 4 is located between the top plate 21 and the bottom plate 22. When the coating basket 2 is at the first position, the bottom plate 22 is connected with the baffle 4, and when the coating basket 2 is at the second position, the top plate 21 is connected with the baffle 4.

In order to improve the sealing effect, sealing rings are arranged between the baffle 4 and the flanges of the upper tank body 11 and the lower tank body 12, and when the top plate 21 and the bottom plate 23 abut against the baffle 4, the baffle 4 can extrude the flanges of the upper tank body 11 and the lower tank body 12, so that the sealing effect of the upper cavity and the lower cavity is improved.

Two heating pipes 5 are arranged in the lower cavity of the tank body 1, and two sets of condensing coils 6 are arranged on the side wall of the lower cavity; the outer wall of the groove body 1 corresponding to the lower cavity is provided with a vibrating plate component 7. The heating pipe 5, the condensing coil 6 and the vibrating plate component 7 are used for controlling the temperature of the coating liquid. When the temperature is ultrahigh, the condensing coil 6 refrigerates the coating liquid; when the temperature is ultra-low, the heating pipe 5 heats the coating liquid. The vibrating plate component 7 has the function of enabling the temperature of the coating liquid in the lower cavity to be uniform and enabling the temperature of the coating liquid to be in the optimal state.

The outer wall of the groove body 1 corresponding to the upper cavity is provided with a hot air inlet 8 and a hot air outlet 9. The hot air inlet 8 is externally connected with a high-pressure fan, and the high-pressure fan blows hot air into the upper cavity through the hot air inlet 8 to dry the workpiece; the hot air outlet 9 is externally connected with a spiral condenser and used for condensing and recycling the coating liquid volatilized from the hot air outlet 9.

In this embodiment, a movable door 13 for opening and closing the feed port is provided at the feed port. The movable door 13 specifically includes a door body 131, a second driving member 132 disposed at the top of the tank body 1, and guide rails 133 located at two sides of the opening direction of the door body 131. The driving end of the second driver 132 is connected to the door 131, and rollers 1311 corresponding to the corresponding side guide rails 133 are disposed on both sides of the door 131. Wherein, the second driving member 132 also adopts a driving cylinder.

In this embodiment, the outer wall of the upper chamber corresponding to the tank body 1 is provided with an access door 111 for maintaining and checking mechanical parts in the coating equipment; an observation window is arranged on the outer wall of the corresponding lower cavity and used for observing the film coating condition of the workpiece in the tank body 1.

The working process of the invention is as follows:

the workpiece to be coated is placed into the cleaning basket and is conveyed to the coating washing basket 2 by the external conveying mechanism, the movable door is closed, the lifting assembly conveys the coating washing basket 2 and the workpiece into the lower cavity of the tank body 1 for coating, and meanwhile, the lower cavity is sealed by the top plate 21 of the coating washing basket 2, so that the coating liquid is prevented from volatilizing outwards due to temperature rise.

After a certain time, the film coating is finished, and the lifting assembly lifts the film coating washing basket 2 and the workpiece to a certain height for draining. After leaching for several minutes, the lifting assembly lifts the coating film washing basket 2 and the workpiece into an upper cavity of the tank body 1 for hot air drying, and simultaneously, a bottom plate 22 of the coating film washing basket 2 is used for sealing the lower cavity, so that the coating film liquid is prevented from volatilizing outwards due to temperature rise.

An external high-pressure fan blows hot air into the upper cavity through a hot air inlet 8 to dry the workpiece, and then an external spiral condenser condenses and recovers the coating liquid volatilized from a hot air outlet 9. The movable door is opened, and the workpiece is taken out by the external conveying mechanism.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

Claims

1. A coating machine is characterized by comprising:

the upper part of the tank body is provided with a feed inlet;

the coating washing basket frame is arranged in the tank body and used for bearing a piece to be coated, and comprises a top plate, a bottom plate and a connecting piece for connecting the top plate and the bottom plate;

2. The coating machine as claimed in claim 1, wherein the tank is composed of an upper tank and a lower tank, a baffle is arranged at the joint of the upper tank and the lower tank, and the baffle is positioned between the top plate and the bottom plate; when the coating basket is located at the first position, the bottom plate is abutted to the baffle, and when the coating basket is located at the second position, the top plate is abutted to the baffle.

3. The coating machine as claimed in claim 2, wherein sealing rings are provided between the baffle and the bottom of the upper tank and between the baffle and the top of the lower tank.

4. The coater as claimed in claim 1 wherein the lifting assembly includes a first drive member at the top of the tank, the drive end of the first drive member passing through the top of the tank and being connected to the top plate.

5. The coater as claimed in claim 4 wherein the lifting assembly further comprises a guide post slidably disposed at the top of the tank in the lifting direction and having one end fixed to the top plate.

6. A coating machine as claimed in claim 1, characterized in that the lower chamber of the tank is provided with a heating pipe for heating the coating liquid, and the inner wall of the lower chamber is provided with a condensing coil for refrigerating the coating liquid.

7. The coating machine as claimed in claim 6, wherein the outer wall of the tank corresponding to the lower cavity is provided with a vibration plate assembly for making the temperature of the coating liquid uniform.

8. The coating machine as claimed in claim 1, wherein the outer wall of the tank corresponding to the upper chamber is provided with a hot air inlet and a hot air outlet for the inflow and outflow of hot air to form a closed internal circulation.

9. The coating machine as claimed in claim 1, wherein a movable door for opening and closing the feed inlet is provided at the feed inlet.

10. The coating machine as claimed in claim 1, wherein the tank is provided with an access door on the outer wall corresponding to the upper chamber and an observation window on the outer wall corresponding to the lower chamber.