GB2178630A - Ultraviolet irradiation bonding apparatus - Google Patents
Ultraviolet irradiation bonding apparatus Download PDFInfo
- Publication number
- GB2178630A GB2178630A GB08617208A GB8617208A GB2178630A GB 2178630 A GB2178630 A GB 2178630A GB 08617208 A GB08617208 A GB 08617208A GB 8617208 A GB8617208 A GB 8617208A GB 2178630 A GB2178630 A GB 2178630A
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- United Kingdom
- Prior art keywords
- inner chamber
- belt
- inert gas
- conveyor belt
- nozzle
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/001—Joining in special atmospheres
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
- B01J19/12—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electromagnetic waves
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
- B05C9/08—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation
- B05C9/12—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation the auxiliary operation being performed after the application
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/1403—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the type of electromagnetic or particle radiation
- B29C65/1406—Ultraviolet [UV] radiation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/1477—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation making use of an absorber or impact modifier
- B29C65/1483—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation making use of an absorber or impact modifier coated on the article
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
- B29C65/483—Reactive adhesives, e.g. chemically curing adhesives
- B29C65/4845—Radiation curing adhesives, e.g. UV light curing adhesives
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
- B29C65/7858—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus characterised by the feeding movement of the parts to be joined
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/001—Joining in special atmospheres
- B29C66/0012—Joining in special atmospheres characterised by the type of environment
- B29C66/0014—Gaseous environments
- B29C66/00141—Protective gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/74—Joining plastics material to non-plastics material
- B29C66/746—Joining plastics material to non-plastics material to inorganic materials not provided for in groups B29C66/742 - B29C66/744
- B29C66/7465—Glass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
- B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
- B29C2035/0827—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using UV radiation
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Chemical & Material Sciences (AREA)
- Electromagnetism (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Organic Chemistry (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Coating Apparatus (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
An ultraviolet irradiation bonding apparatus comprises an outer chamber 10 containing an ultraviolet lamp 31 and an inner chamber 11 an air duct being formed around the inner chamber 11, the inner chamber 11 being formed with an inlet 11a and an outlet 11b for parts being joined; an ultraviolet transmission plate 30 provided on the inner chamber 11 so as to cover an opening 11c formed in the upper surface of the inner chamber 11; a conveyor belt 13 running from the inlet 11a through the inner chamber 11 to the outlet 11b; at least one nozzle 22 to 25 for supplying inert gas into the inner chamber 11; and means as at 34 for feeding cooling air into the air duct formed around the inner chamber 11 and to around the ultraviolet lamp 31, in which parts with a light-curing bonding agent therebetween are fed into the inner chamber 11 by the conveyor belt 13 and illuminated by the ultraviolet lamp 31 to harden the light-curing bonding agent. A recessed part can efficiently be joined and the consumption of inert gas can be extremely reduced. <IMAGE>
Description
SPECIFICATION
Ultraviolet irradiation bonding apparatus
BACKGROUND OF THE INVENTION 1. Field of the Invention
This invention relates to an ultraviolet irradiation bonding apparatus which makes a lightcuring bonding agent harden by ultraviolet irradiation to joint at least two parts.
2. Description of the Related Art
Bonding by ultraviolet irradiation depends upon the atmosphere where the parts to be joined are placed. That is to say, if oxygen is present in the atmosphere at the time of ultraviolet irradiation, the start of the curing reaction of a light-curing resin bonding agent is adversely affected, and the length of time required for the curing reaction becomes longer.
To eliminate such a problem, for instance, as shown in Japanese published unexamined patent application No. 59136371 (hereinafter referred to as prior art 1), Japanese published examined patent application No. 57-13334 (hereinafter referred to as prior art 2) and
Japanese published examined patent application No. 57-49262 (hereinafter referred to as prior art 3), it is known that inert gas is introduced into an ultraviolet irradiation chamber to intercept the parts from the oxygen in the atmosphere so as to accelerate the curing action.
Any of the first embodiment of prior art 1, prior art 2 and prior art 3 makes the entire ultraviolet irradiation chamber in an inert gas atmosphere. As a result, a large amount of inert gas is required. In addition, the efficiency of removing the oxygen adhered to the parts is poor. In this respect, in the second embodiment of prior art 1, the inert gas is directly injected to the joint, and, therefore, the oxygen adhered to the parts is efficiently removed.However, in the second embodiment of prior art 1, the inert gas is simply injected onto the upper sides of the parts being joined and, therefore, a part having a recess facing the conveyor belt has a problem that because the oxygen in the recess is not removed, the curing reaction is slow, and as the case may be, the ultraviolet bonding agent remains in a non-hardened or half-hardened condition even after a long ultraviolet irradiation. This problem is common to all of prior art 1, 2 and 3.
Furthermore, none of the above-mentioned prior art gives any consideration to the control of oxygen concentration of the ultraviolet irradiation chamber, and since the parts being joined are successively fed into the ultraviolet irradiation chamber, some parts whose bonding agent has not been hardened take place, when the oxygen concentration exceeds the limit.
In addition, any of the prior art continues to supply the inside of the ultraviolet irradiation chamber with a fixed amount of inert gas.
Thus, if a large amount of inert gas is supplied so as to reduce the waiting time at the time of start, the large amount of inert gas must be unnecessarily supplied even during the normal operation. This is uneconomical.
On the other hand, however, if the supply amount of inert gas is reduced, there causes another problem that the waiting time at the time of start becomes longer.
Also, no consideration is given to the unnecessary heat caused by the ultraviolet lamp or to the cooling of the parts. In addition, in prior art 2, since only the parts and the reflector are directly cooled by the cooling pipe, prior art 2 has the problem that the accumulation of much heat radiated from the ultraviolet lamp may devitrify the illuminant of the ultraviolet lamp. Also a liquid is used for cooling, which makes the structure complicated and requires a complete seal mechanism so as to prevent liquid leakage. On the other hand, in prior art 3, since the cooling is only made by an exhaust blower, the cooling efficiency for the ultraviolet lamp and the parts is not sufficient.
The object of the invention is to provide an ultraviolet irradiation bonding apparatus which eliminates the problems of the above-mentioned prior art.
SUMMARY OF THE INVENTION
The structure according to the invention to solve the above-mentioned problems is:
an outer chamber having an ultraviolet lamp inside;
an inner chamber provided within the outer chamber so that below the ultraviolet lamp, an air duct can be formed outside the inner chamber, the inner chamber being formed with an intake approach and a takeout approach at an inlet and an outlet for parts being joined;
an ultraviolet transmission plate provided on the inner chamber so as to cover an opening formed in the upper surface of the inner chamber;
a conveyor belt arranged so that the going run of the conveyor belt can be located from the intake approach through the inner chamber to the takeout approach;
at least one nozzle for supplying inert gas into the inner chamber; and
cooling means for feeding air into the air duct formed outside the inner chamber and to around the ultraviolet lamp;
in which at least two parts overlapped through a light-curing bonding agent are fed into the inner chamber by the conveyor belt and illuminated by the ultraviolet lamp to harden the light-curing bonding agent.
Especially in this apparatus, the belt is formed with meshes and the nozzle is located at the going path of the belt so that the inert gas is injected from one side of the conveyor belt toward the other side of the belt.
Furthermore, in this apparatus, within the inner chamber, there are provided a purge nozzle for injecting a larger amount and higher pressure of inert gas and an oxide concentration sensor for detecting the oxide concentration in the inner chamber, and the purge nozzle is controlled by a detection signal from the sensor.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a vertical sectional view illustrating one embodiment of an ultraviolet bonding apparatus according to the invention; FIG. 2 is a sectional view taken along the line A-A of
FIG. 1; FIG. 3 is a sectional view taken along the line B-B of FIG. 1; and FIG. 4 is a vertical sectional view illustrating one embodiment of the parts to be joined.
DETAILED DESCRIPTION OF THE PREFERRED
EMBODIMENT
Now, one of the embodiments of the invention will be described with reference to FIGS.
1 to 3. In a nearly middle portion of the outer chamber 10, a horizontally extending inner chamber 11 is provided. At both sides of the inner chamber 11, air ducts 12 are formed.
The inner chamber 11 is provided with an intake approach 1 1a and a takeout approach 1 1b at the left and right. The opening for the takeout approach lIb is formed narrow so far as the conveyor belt 13 and the parts mounted on the conveyor belt 13 are allowed to pass the opening. On the other hand, the opening for the intake approach 1 1a is formed of a size for inserting an illuminometer into the inner chamber for measuring the illumination of an ultraviolet lamp 31 which will be discussed later. The inlet portion of the intake approach 1 1a is provided with a shutter 14 for opening and closing the inlet, and when the shutter 14 is in its lowered position, a clearance is formed for passing the conveyor belt 13 and the parts mounted on the conveyor belt 13.
Secured onto the lower surface of the inner chamber 11 is a partition 15 which is open at the right and left. The conveyor belt 13 is formed with meshes and passed over a drive drum 16 and a follower drum 17 so that the going run of the belt 13 can be positioned in the inner chamber 11 and that the return run can be positioned between the inner chamber 11 and the partition 15.
On the outside walls of the inner chamber
11 are cooling fins 20, and on the side of the takeout approach 1 1b within the inner chamber 11 is an oxygen concentration sensor 21.
Furthermore, the intake approach 11a of the inner chamber 11 is provided with an inlet nozzle 22 at the lower portion of the belt 13, and the injection of inert gas blocks the inflow of oxygen. At the lower side of the conveyor belt 13 within the inner chamber 11, a first nozzle 23, a second nozzle 24 and a purge nozzle 25 are arranged so as to inject inert gas such as nitrogen gas upward, and the first nozzle 23 and the second nozzle 24 are provided near the intake approach 1 lea. The inlet nozzle 22 is about 2 kg/cm2 in pressure and about 2 lit/min in flow rate, the first nozzle 23 is about 1 kg/cm2 in pressure and about 3 lit/min in flow rate, the second nozzle 24 is about 1 kg/cm2 in pressure and about 4 lit/min in flow rate, and the purge nozzle 25 is about 3 kg/cm2 in pressure and about 10 lit/min in flow rate, thus injecting inert gas, respectively.
In this regard, the inert gas pressures and the flow rates in the embodiment are conditioned to keep the oxygen concentration less than 0.1% (a specified value) and simultaneously to use inert gas economically. Also it will be understood that the setting of pressure and flow rate of inert gas and the setting of concentration of the oxygen concentration sensor can be arbitrarily selected.
The inner chamber 11 has an opening 1 1c in the upper surface, and an ultraviolet transmission plate 30 such as silica glass and
Pyrex glass is detachably mounted on the upper surface of the inner chamber 11 so as to cover the opening 11 c. Above the ultraviolet transmission plate 30 within the outer chamber 10, the ultraviolet lamp 31 and a reflector plate 32 are located. These ultraviolet lamp 31 and reflector plate 32 are secured to an exhaust duct 33 which extends outside so as to cover the ultraviolet lamp 31 and the reflector plate 32. An exhaust section 33a of the exhaust duct 33 is provided with an exhaust fan (not shown). At the lower portion of the outer chamber 10 near the inner chamber 11 are air inlets 10a and 10b in which suction fans 34 and 35 are arranged, respectively.
Near the follower drum 17 of the ultraviolet irradiation bonding apparatus thus constructed, an intake belt 40 is arranged, and between the intake belt 40 and the follower drum 17, a delivery belt 41 is arranged for delivering the parts smoothly. Near the intake belt 40, application devices 42 for applying a light-curing bonding agent to the parts are arranged.
Near the drive drum 16, an ejection belt 43 is arranged and between the ejection belt 43 and the drive drum 16, a chute 44 is arranged for delivering the parts smoothly.
Now, the operation will be described. As shown in FIG. 4 as one example, the description will be given of a watch case 1 in which a case body 2 and a glass plate 3 are being joined by a light-curing bonding agent 4. As the ultraviolet irradiation bonding apparatus starts, inert gas is injected from the nozzles 22 to 25, and as soon as the ultraviolet lamp 31 lights, the exhaust fan within the exhaust section 33a and suction fans 34 and 35 start to rotate. When the inert gas is injected from the nozzles 22 to 25, the inside of the inner chamber 11 is filled with an inert gas atmosphere. When the oxygen concentration is less than a fixed value, the oxygen concentration sensor 21 outputs a signal, and by this signal the injection of the inert gas from the purge nozzle 25 stops, and at the same time the intake belt 40 and the delivery belt 41 start.
In addition, when the exhaust fan and suction fans 34 and 35 start to rotate, air from air inlets 10a and 10b is sucked into the outer chamber 10. This air passes through air ducts 12 between the outer chamber 10 and the inner chamber 11 to the exhaust duct 33 and is exhausted outside through the exhaust section 33a. By this air flow, the inner chamber 11 is cooled through cooling fins 20, and the unnecessary heat by the ultraviolet lamp 31 is cooled. In this embodiment, as the oxygen concentration sensor, the one attached to the known Zirconia Oxygen Analyzer Model LC700M made by Toray Engineering Co., Ltd.
has been used.
When the light-curing bonding agent 4 is applied to the case body 2 by the application devices 42 and the watch case 1 in which the glass plate 3 is mounted on the case body 2 is placed on the intake belt 40, then, from the intake belt 40, the watch case 1 is fed by way of the delivery belt 41 to the conveyor belt 13. From the intake approach Ila, the watch case 1 passes through the inner chamber 11 to the takeout approach 11 b. As mentioned above, the inside of the inner chamber 11 is filled with an inert gas atmosphere, and the light-curing bonding agent 4 is illuminated by the ultraviolet light of the ultraviolet lamp 31 and hardened immediately under the condition where oxygen is completely blocked.
Also, the conveyor belt 13 is formed with meshes, and the first and second nozzles 23 and 24 inject inert gas from the lower side of the conveyor belt 13 toward the upper side of the belt 13. Therefore, the oxygen collected in the recess inside the watch case 1 is blown off. Thus an inner end 4b of the light-curing bonding agent 4 is completely blocked off the oxygen, and the inner end 4b is hardened immediately. The watch case 1 in which the glass plate 3 has been joined to the case body 2 through the light-curing bodning agent 4 is ejected from the conveyor belt 13 by way of the chute 44 to the ejection belt 43.
On the other hand, if the oxygen concentration within the inner chamber 11 is more than the fixed value during operation, the oxygen concentration sensor 21 outputs a signal and the purge nozzle 25 is switched on to inject a large amount of inert gas. In addition, if the oxygen concentration abnormally exceeds a fixed limit, a warning alarm sounds and the intake belt 40 stops. When the oxygen concentration within the inner chamber 11 is below the fixed limit, the oxygen concentration sensor 21 outputs a signal again, the injection of inert gas from the purge nozzle 25 stops and the intake belt 40 starts.
In this- way, the inner chamber 11 is provided in the outer chamber 10 and within this chamber 11, only the going run of the intake belt 13 is provided. Therefore, the inner chamber 11 is considerably reduced in size and the areas connecting to the atmosphere are only the intake approach 1 lea and the takeout approach 11 b in the inner chamber 11.
That is to say, the capacity of the chamber for introducing inert gas can be small and inert gas leaking portions can be small, thereby extremely reducing the consumption of inert gas. Furthermore, since air flows through air ducts 12 formed outside the inner chamber 11 and through around the ultraviolet lamp 31, there is no possibility that the parts being joined are excessively heated, and at the same time the unnecessary heat by the ultraviolet lamp 31 is cooled.
Also, the conveyor belt 13 is formed with meshes, and the first and second nozzles 23 and 24 inject inert gas from the lower side of the conveyor belt 13 upward. Therefore, in a part having a recess inside like the watch case 1, the oxygen collected in the recess can be blown off, and the inner end 4b of the lightcuring bonding agent 4 can soon be hardened.
As already mentioned, there are provided the low flow rate nozzles 23 and 24; the high flow rate purge nozzle 25; and the oxygen concentration sensor 21 within the inner chamber 11 so that the purge nozzle 25 can be controlled by means of the oxygen concentration sensor 21. As a result, the inside of the inner chamber 11 can be made a specific inert gas atmosphere in a short time and simultaneously, the consumption of the inert gas can be extremely reduced. Also by the oxygen concentration sensor 21, the intake belt 40 is controlled to stop the feed of the parts onto the conveyor belt 13, thus preventing a malfunction beforehand.
Claims (7)
1. An ultraviolet irradiation bonding apparatus comprising:
an outer chamber having an ultraviolet lamp inside;
nslae; an inner chamber provided within said outer chamber so that below said ultraviolet lamp, an air duct can be formed outside the inner chamber, said inner chamber being formed with an intake approach and a takeout approach at an inlet and an outlet for parts being joined;
an ultraviolet transmission plate provided on said inner chamber so as to cover an opening formed in the upper surface of said inner chamber;
a conveyor belt arranged so that the going run of the conveyor belt can be located from said intake approach through said inner chamber to said takeout approach;
at least one nozzle for supplying inert gas into said inner chamber; and
cooling means for feeding air into said air duct formed outside said inner chamber and to around said ultraviolet lamp;
in which at least two parts overlapped through a light-curing bonding agent are fed into said inner chamber by said conveyor belt and illuminated by said ultraviolet lamp to harden said light-curing bonding agent.
2. The ultraviolet irradiation bonding apparatus according to claim 1, wherein said belt is formed with meshes and said nozzle is located at the going path of said belt so that said inert gas is injected from one side of said conveyor belt toward the other side of said belt.
3. The ultraviolet irradiation bonding apparatus according to claim 1 or 2, wherein within said inner chamber, there are provided a purge nozzle for injecting a larger amount and higher pressure of inert gas than those of the firstmentioned nozzle and an oxide concentration sensor for detecting the oxide concentration in said inner chamber, and said purge nozzle is controlled by a detection signal from said sensor.
4. The ultraviolet irradiation bonding apparatus according claim 1, wherein said intake approach is provided with input nozzle for injecting inert gas toward said belt as to block the inflow of oxygen.
5. The ultaviolet irradiation bonding apparatus according to claim 1 or 2, wherein there are provided a plurality of nozzles for injecting different amounts of inert gas, respectively.
6. An ultraviolet irradiation bonding apparatus comprising:
an outer chamber having an ultraviolet lamp inside;
an inner chamber provided within said outer chamber so that below said ultraviolet lamp, an air duct can be formed outside the inner chamber, said inner chamber being formed with an intake approach and a takeout approach at an inlet and an outlet for parts being joined;
an ultraviolet transmission plate provided on said inner chamber so as to cover an opening formed in the upper surface of said inner chamber;
a conveyor belt arranged so that the going run of the conveyor belt can be located from said intake approach through said inner chamber to said takeout approach, said conveyor belt being formed with meshes;;
a first nozzle and a second nozzle which are different from each other in flow rate and located below said conveyor belt so as to inject said inert gas from the lower side of said belt toward the upper side of said belt;
a purge nozzle located below said belt for injecting inert gas of a larger amount and higher pressure than those of said first and second nozzles from the lower side of said belt toward the upper side of said belt;
an input nozzle for injecting inert gas toward said belt, located on the inlet approach of said inner chamber so as to block the inflow of oxygen; and
cooling means for feeding air into said air duct formed outside said inner chamber and to around said ultraviolet lamp;
in which at least two parts overlapped through a light-curing bonding agent are fed into said inner chamber by said conveyor belt and illuminated by said ultraviolet lamp to harden said light-curing bonding agent.
7. An ultraviolet irradiation bonding apparatus substantially as herein described with reference to and as illustrated in Figures 1 to 4 of the accompanying drawings.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60155385A JPH0635567B2 (en) | 1985-07-15 | 1985-07-15 | UV irradiation adhesive device |
| JP60155386A JPS6214965A (en) | 1985-07-15 | 1985-07-15 | Adhering apparatus by ultraviolet ray irradiation |
| JP60155384A JPH0613678B2 (en) | 1985-07-15 | 1985-07-15 | UV irradiation adhesive device |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB8617208D0 GB8617208D0 (en) | 1986-08-20 |
| GB2178630A true GB2178630A (en) | 1987-02-11 |
| GB2178630B GB2178630B (en) | 1989-09-20 |
Family
ID=27320825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8617208A Expired GB2178630B (en) | 1985-07-15 | 1986-07-15 | Ultraviolet irradiation bonding apparatus |
Country Status (4)
| Country | Link |
|---|---|
| KR (1) | KR920007954B1 (en) |
| GB (1) | GB2178630B (en) |
| HK (1) | HK19490A (en) |
| SG (1) | SG11790G (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996030210A1 (en) * | 1995-03-31 | 1996-10-03 | Ferguson International Holdings Plc | Improvements in and relating to lamination of sheet materials |
| WO2003074248A1 (en) * | 2002-02-28 | 2003-09-12 | Henkel Corporation | Light-curing device and process for producing hearing aid shells using light-curable resins |
| DE102004048005A1 (en) * | 2004-10-01 | 2006-04-13 | Dr. Hönle AG | A gas discharge lamp, system and method of curing UV light curable materials, and UV light cured material |
| CN104742362A (en) * | 2015-04-03 | 2015-07-01 | 东莞市汇诚塑胶金属制品有限公司 | Forming process and processing equipment of housing decorating part, and housing decorating part |
| US9297398B2 (en) | 2011-01-24 | 2016-03-29 | Böllhoff Verbindungstechnik GmbH | Jointing head for fastening element, and a fastening method |
| DE102016102187B3 (en) * | 2016-02-09 | 2017-08-10 | Heraeus Noblelight Gmbh | Device for the treatment of a substrate with UV radiation and use of the device |
| CN113492576A (en) * | 2020-04-06 | 2021-10-12 | 正扬科技有限公司 | Ultraviolet light curing device |
| US20210316520A1 (en) * | 2018-10-16 | 2021-10-14 | Transitions Optical, Ltd. | Ultraviolet Curing Apparatus |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100396246B1 (en) * | 2000-05-25 | 2003-09-02 | 오세영 | Lamp for tunnel |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3790801A (en) * | 1972-09-08 | 1974-02-05 | Ppg Industries Inc | Apparatus for ultraviolet light treatment in a controlled atmosphere |
-
1986
- 1986-06-30 KR KR1019860005256A patent/KR920007954B1/en not_active IP Right Cessation
- 1986-07-15 GB GB8617208A patent/GB2178630B/en not_active Expired
-
1990
- 1990-02-20 SG SG117/90A patent/SG11790G/en unknown
- 1990-03-15 HK HK194/90A patent/HK19490A/en not_active IP Right Cessation
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3790801A (en) * | 1972-09-08 | 1974-02-05 | Ppg Industries Inc | Apparatus for ultraviolet light treatment in a controlled atmosphere |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996030210A1 (en) * | 1995-03-31 | 1996-10-03 | Ferguson International Holdings Plc | Improvements in and relating to lamination of sheet materials |
| WO2003074248A1 (en) * | 2002-02-28 | 2003-09-12 | Henkel Corporation | Light-curing device and process for producing hearing aid shells using light-curable resins |
| DE102004048005A1 (en) * | 2004-10-01 | 2006-04-13 | Dr. Hönle AG | A gas discharge lamp, system and method of curing UV light curable materials, and UV light cured material |
| US9297398B2 (en) | 2011-01-24 | 2016-03-29 | Böllhoff Verbindungstechnik GmbH | Jointing head for fastening element, and a fastening method |
| CN104742362A (en) * | 2015-04-03 | 2015-07-01 | 东莞市汇诚塑胶金属制品有限公司 | Forming process and processing equipment of housing decorating part, and housing decorating part |
| DE102016102187B3 (en) * | 2016-02-09 | 2017-08-10 | Heraeus Noblelight Gmbh | Device for the treatment of a substrate with UV radiation and use of the device |
| WO2017137211A1 (en) | 2016-02-09 | 2017-08-17 | Heraeus Noblelight Gmbh | Device for the treatment of a substrate with uv radiation and use of the device |
| US20210316520A1 (en) * | 2018-10-16 | 2021-10-14 | Transitions Optical, Ltd. | Ultraviolet Curing Apparatus |
| CN113492576A (en) * | 2020-04-06 | 2021-10-12 | 正扬科技有限公司 | Ultraviolet light curing device |
| WO2021203216A1 (en) * | 2020-04-06 | 2021-10-14 | 正扬科技有限公司 | Ultraviolet light curing device |
| CN113492576B (en) * | 2020-04-06 | 2022-11-29 | 正扬科技有限公司 | Ultraviolet light curing device |
Also Published As
| Publication number | Publication date |
|---|---|
| KR920007954B1 (en) | 1992-09-19 |
| SG11790G (en) | 1990-08-31 |
| GB2178630B (en) | 1989-09-20 |
| KR870000971A (en) | 1987-03-10 |
| HK19490A (en) | 1990-03-23 |
| GB8617208D0 (en) | 1986-08-20 |
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