JP5742080B2 - Coating device - Google Patents

Description

  In the present invention, a viscous liquid, particularly a moisture-curable adhesive composition or an oxygen-curable adhesive composition is housed in a flexible bag or container and pressure is applied from the outside. The present invention relates to an improvement of a coating apparatus having a plastic container that is effectively used when the bag or container is deformed and reduced to discharge the viscous liquid inside and apply.

  Conventionally, in a coating apparatus that applies a moisture curable adhesive or an oxygen curable adhesive, the adhesive hardens when it comes into contact with the air. Since inconveniences such as causes occur, it is necessary to apply the adhesive in a state where it is not in contact with air.

  Proposals have also been made for devices that apply liquids that dislike contact with air. For example, as an apparatus for storing a viscous liquid or the like in a flexible bag or container and applying pressure from the outside to deform and reduce the bag or container and discharge the internal viscous liquid to the outside and apply it , "Deformable airtight container filled with adhesive, pressure tank containing the airtight container, hose connecting the discharge unit and the airtight container provided outside the pressure tank, pressure device for the pressure tank In the adhesive applicator consisting of the following, the sealed container is filled with water-based adhesive, the tip of the hose connected to the sealed container is connected to the spray gun, and the outer wall surface of the hose attachment part of the sealed container is deformed when contracted. An adhesive application device provided with a ridge-shaped reinforcing part to be regulated "(Claim 1 of Patent Document 1) is known.

  Further, as a coating apparatus, “a fluid that is connected to the liquid container according to any one of claims 1 to 7 and a liquid discharge port of an inner container that constitutes the container and introduces a pressure fluid into the inside thereof. A coating apparatus comprising: introduction means; and means for spraying liquid to be coated which is connected to the pump unit and pressurized and delivered by the pump unit. Item 8) is also known. And in this coating apparatus, as a container for liquid, “a container for storing liquid that dislikes contact with air and discharging the liquid without invading it as much as possible when discharging the liquid” An inner container provided with a liquid discharge port connected to a pump unit that discharges the liquid in a flexible bag shape whose volume can be freely changed, and a state in which the inner container is accommodated without changing in volume. And an outer container into which the pressure fluid is introduced inside the inner container in a sealed state, and the inner container is discharged as the liquid contained in the inner container is discharged. The air region formed inside is pushed and narrowed by the pressure fluid introduced into the outer container, so that the liquid is discharged from the inner container so that air does not enter the inner container as much as possible. Liquid characterized by Container. "Discloses (claim 1 of Patent Document 2).

  Patent Documents 1 and 2 described above both relate to an apparatus for applying a liquid that dislikes contact with air. However, liquid feeding means such as a hose and a tube, a storage container, a pressurized container (pressurized tank), etc. Since the strict mechanism is not necessarily adopted for the sealing structure of the connecting part, it is inevitable that various troubles occur due to the liquid curing due to the intrusion of air from those connecting parts. .

JP 2010-247073 A JP 2010-247878 A

  In view of the problems of the conventional coating apparatus described above, the present invention provides a sealing effect for a sealing structure of a connecting portion between a liquid feeding means such as a hose or a tube and a storage container or a pressurized container (pressurized tank). The purpose of the present invention is to provide a coating apparatus that has been completed as a result of repeated research on a structure for enhancing the structure, and that can completely prevent the intrusion of air at the connection portion and eliminates the above-described troubles. To do.

In order to solve the above problems, a coating apparatus according to the present invention includes a pressurized tank, compressed air supply means for supplying compressed air into the pressurized tank, a plastic container installed in the pressurized tank, Liquid feeding pipe means having one end communicating with the opening of the plastic container, and application nozzle means connected to the other end of the liquid feeding means,
The plastic container has flexibility that is formed so as to open a wide-mouth opening and to be filled with a viscous liquid and to be crushed by pressurization so that the viscous liquid is pressurized and discharged from the opening. A plastic container main body and a long flow path that is attached to the opening so as to extend into the plastic container main body and forms a discharge flow path for the viscous liquid when the viscous liquid is pressurized and discharged A member, and
When compressed air is supplied into the pressurized tank, the plastic container installed in the pressurized tank is pressurized and crushed, and the viscous liquid inside is compressed via the elongated channel member. An applicator that discharges from the plastic container and then ejects from the applicator nozzle means via the liquid feed pipe means to apply the viscous liquid to a predetermined site;
The elongate flow path member is detachably attached to the opening of the plastic container body and has an upper end attachment portion having a liquid discharge opening at the center thereof, and extends to the inside of the plastic container body. An elongate flow passage portion integrally attached to the attachment portion, and the elongate flow passage member is detachably attached to the opening, and the opening of the plastic container body The upper end mounting portion of the elongated channel member is fitted to the portion, the liquid feeding means communicates with the liquid discharge port of the upper end mounting portion, and the liquid feeding means is connected to the liquid discharge port by a sealing mounting means. Attached in a sealed state,
The sealing mounting means has a lower surface shape corresponding to the upper surface shape of the upper end mounting portion of the elongated channel member, and a receiving step portion is formed on the lower upper surface and a male screw portion is formed on the upper outer surface; A fixing member having an insertion opening at the center, a through hole that contacts the receiving step at the center of the circular plate, and the inner surface of the annular side wall that is suspended from the peripheral edge of the circular plate. A cap member formed with a female screw portion that can be screwed into a male screw portion formed on the outer surface of the cylindrical side wall of the opening of the plastic container body, and a central hole formed in the central portion and the inner surface of the lower end of the central hole A fastening member having a female screw portion formed thereon,
The fixing member is brought into contact with the upper surface of the upper end mounting portion of the long channel member, and the liquid feeding tube is passed through a central hole of the fastening member, a through hole of the cap member, and an insertion port of the fixing member. Means in communication with the liquid discharge port of the upper end attachment portion of the elongated channel member, and the cylindrical side wall of the opening of the plastic container body with the through hole of the cap member in contact with the receiving step portion The female screw portion of the cap member is screwed into the male screw portion and screwed, and then the female screw portion on the inner surface of the center hole of the fastening member is screwed into the male screw portion on the upper upper surface of the fixing member. By screwing, the liquid feeding pipe means is communicated in a sealed state with the liquid discharge port of the upper end mounting portion of the long channel member, and the upper end portion of the inner peripheral surface forming the insertion port of the fixing member At least one annular taper portion whose diameter decreases downward Characterized in that it formed.

  By forming at least one annular tapered portion having a diameter that decreases downward at the upper end portion of the inner peripheral surface that forms the insertion port of the fixing member, the liquid feeding means is locked by the insertion port of the fixing member. Can be further improved.

The coating apparatus includes a pressurized tank, compressed air supply means for supplying compressed air into the pressurized tank, a plastic container installed in the pressurized tank, and one end communicating with an opening of the plastic container. Liquid feeding pipe means, and application nozzle means connected to the other end of the liquid feeding pipe means,
The plastic container has flexibility that is formed so as to open a wide-mouth opening and to be filled with a viscous liquid and to be crushed by pressurization so that the viscous liquid is pressurized and discharged from the opening. A plastic container main body and a long flow path that is attached to the opening so as to extend into the plastic container main body and forms a discharge flow path for the viscous liquid when the viscous liquid is pressurized and discharged A member, and
When compressed air is supplied into the pressurized tank, the plastic container installed in the pressurized tank is pressurized and crushed, and the viscous liquid inside is compressed via the elongated channel member. An applicator that discharges from the plastic container and then ejects from the applicator nozzle means via the liquid feed pipe means to apply the viscous liquid to a predetermined site;
The elongate flow path member is detachably attached to the opening of the plastic container body and has an upper end attachment portion having a liquid discharge opening at the center thereof, and extends to the inside of the plastic container body. An elongate flow passage portion integrally attached to the attachment portion, and the elongate flow passage member is detachably attached to the opening, and the opening of the plastic container body The upper end mounting portion of the elongated channel member is fitted to the portion, the liquid feeding means communicates with the liquid discharge port of the upper end mounting portion, and the liquid feeding means is connected to the liquid discharge port by a sealing mounting means. Attached in a sealed state,
The sealing mounting means has a lower surface shape corresponding to the upper surface shape of the upper end mounting portion of the elongated channel member, and a receiving step portion is formed on the lower upper surface and a male screw portion is formed on the upper outer surface; A fixing member having an insertion opening at the center, a through hole that contacts the receiving step at the center of the circular plate, and the inner surface of the annular side wall that is suspended from the peripheral edge of the circular plate. A cap member formed with a female screw portion that can be screwed into a male screw portion formed on the inner surface of the cylindrical side wall of the opening of the plastic container main body, and a central hole formed in the central portion and the inner surface of the lower end portion of the central hole A fastening member in which a female screw portion is formed, and an auxiliary annular member that opens a through-hole in the central portion and has an annular tapered flange portion on a lower end outer peripheral portion,
The fixing member is brought into contact with the upper surface of the upper end mounting portion of the elongated channel member, and the center hole of the fastening member, the through hole of the auxiliary annular member, the through hole of the cap member, and the insertion of the fixing member The plastic container in a state where the liquid feeding means is communicated with the liquid discharge port of the upper end mounting portion of the elongated channel member through the port, and the through hole of the cap member is in contact with the receiving stepped portion. The female screw portion of the cap member is screwed into the male screw portion of the cylindrical side wall of the opening of the main body and screwed, and then the tightening is performed on the male screw portion on the upper surface of the fixing member with the auxiliary annular member interposed therebetween. By screwing and screwing the female screw portion on the inner surface of the center hole of the attachment member, the liquid feeding means is communicated in a sealed state with the liquid discharge port of the upper end mounting portion of the long channel member. It is characterized by doing so.

Another aspect of the present coating apparatus, a pressurized tank, wherein the pressure tank compressed air supply means for supplying compressed air into, and placed plastic containers pressurizing tank, the opening of the plastic container A liquid feed pipe means having one end communicating with the liquid feed pipe means, and an application nozzle means connected to the other end of the liquid feed pipe means,
The plastic container has flexibility that is formed so as to open a wide-mouth opening and to be filled with a viscous liquid and to be crushed by pressurization so that the viscous liquid is pressurized and discharged from the opening. A plastic container main body and a long flow path that is attached to the opening so as to extend into the plastic container main body and forms a discharge flow path for the viscous liquid when the viscous liquid is pressurized and discharged A member, and
When compressed air is supplied into the pressurized tank, the plastic container installed in the pressurized tank is pressurized and crushed, and the viscous liquid inside is compressed via the elongated channel member. An applicator that discharges from the plastic container and then ejects from the applicator nozzle means via the liquid feed pipe means to apply the viscous liquid to a predetermined site;
The elongate flow path member is detachably attached to the opening of the plastic container body and has an upper end attachment portion having a liquid discharge opening at the center thereof, and extends to the inside of the plastic container body. An elongate flow passage portion integrally attached to the attachment portion, and the elongate flow passage member is detachably attached to the opening, and the opening of the plastic container body The upper end mounting portion of the elongated channel member is fitted to the portion, the liquid feeding means communicates with the liquid discharge port of the upper end mounting portion, and the liquid feeding means is connected to the liquid discharge port by a sealing mounting means. Attached in a sealed state,
The sealing mounting means has a lower surface shape corresponding to the upper surface shape of the upper end mounting portion of the elongated channel member, and a receiving step portion is formed on the lower upper surface and a male screw portion is formed on the upper outer surface; A fixing member having an insertion opening at the center, a through hole that contacts the receiving step at the center of the circular plate, and the inner surface of the annular side wall that is suspended from the peripheral edge of the circular plate. A cap member formed with a female screw portion that can be screwed into a male screw portion formed on the outer surface of the cylindrical side wall of the opening of the plastic container body, and a central hole formed in the central portion and the inner surface of the lower end of the central hole And a fastening member that forms a female screw portion and has a one-touch joint mechanism on the upper inner surface of the center hole,
The fixing member is brought into contact with the upper surface of the upper end mounting portion of the long channel member, and the liquid feeding tube is passed through a central hole of the fastening member, a through hole of the cap member, and an insertion port of the fixing member. Means in communication with the liquid discharge port of the upper end attachment portion of the elongated channel member, and the cylindrical side wall of the opening of the plastic container body with the through hole of the cap member in contact with the receiving step portion The female screw portion of the cap member is screwed into the male screw portion and screwed, and then the female screw portion on the inner surface of the lower end portion of the center hole of the fastening member is screwed into the male screw portion on the upper upper surface of the fixing member. In addition, the liquid feeding means can be sealed and communicated with the liquid discharge port of the upper end mounting portion of the long channel member by screwing.

  It is preferable that the long channel portion is a tubular body having one or more channel holes formed in the side surface. As the viscous liquid, a curable composition having moisture-curable adhesive property or a curable composition having oxygen-curable adhesive property can be applied.

  According to the coating apparatus of the present invention, it is possible to completely prevent the intrusion of air at a connection portion between a liquid feeding means such as a hose or a tube and a storage container or a pressurized container (pressurized tank). Thus, it is possible to achieve an effect that it is possible to eliminate various troubles caused by the liquid being hardened by the intrusion of air.

It is explanatory drawing which shows schematic structure of the coating device of this invention. It is sectional explanatory drawing which shows one embodiment which installed the plastic container used with the coating device of this invention inside the pressurized tank, and shows the state which filled the plastic liquid main body with the viscous liquid. FIG. 3 is a cross-sectional explanatory view showing an intermediate state in which the plastic container body is pressurized from the outside and deformed and contracted from the state of FIG. 2 and the viscous liquid is discharged to the outside. FIG. 4 is a cross-sectional explanatory view illustrating a final state in which the plastic container body is further crushed from the state of FIG. 3 and the entire amount of viscous liquid is discharged to the outside. It is explanatory drawing which shows an example of the elongate flow path member used for the plastic container used with the coating device of this invention, (a) is upper surface explanatory drawing, (b) is sectional explanatory drawing. It is drawing which shows the elongate flow path member similar to FIG. 5, (a) is perspective explanatory drawing which shows the whole, (b) is a perspective explanatory drawing which abbreviate | omits an upper end part and shows only a elongate part. 5 is attached to the opening of the plastic container main body, and one end of the liquid feeding means is communicated with the liquid discharge port of the upper end of the long channel member. The main part explanatory view showing a state in which the liquid delivery pipe means is attached in a sealed state to the liquid discharge port of the upper end attachment part of the long channel member by the sealing attachment means, (a) is an upper surface explanatory view, (B) is sectional explanatory drawing. FIG. 7B is an exploded explanatory view showing each member in FIG. 7B in an exploded view, FIG. 7A is an overall view, FIG. 7B is a cross-sectional explanatory view showing another example of the inner peripheral surface of the fixing member, and FIG. It is an expanded sectional explanatory view of the arrow A part of 8 (b). FIGS. 7A and 7B are views similar to FIGS. 7A and 7B showing another example of the joined state of the attachment portion of the long channel member and the sealing mounting member, and FIG. FIGS. 7A and 7B are views similar to FIGS. 7A and 7B showing still another example of the joining state of the attachment portion of the long channel member and the sealing mounting member, and FIG. FIGS. 7A and 7B are views similar to FIGS. 7A and 7B showing another example of the joining state of the attachment portion of the long channel member and the mounting auxiliary member, and FIG. FIGS. 7A and 7B are views similar to FIGS. 7A and 7B showing another example of the joining state of the attachment portion of the long channel member and the mounting auxiliary member, and FIG. It is drawing which decomposes | disassembles and shows each member in FIG.12 (b), (a) is decomposition | disassembly explanatory drawing, (b) is a removal perspective view of an auxiliary | assistant annular member. FIGS. 7A and 7B are views similar to FIGS. 7A and 7B showing another example of the joining state of the attachment portion of the long channel member and the mounting auxiliary member, and FIG. FIG. 15 is an exploded explanatory view showing each member in FIG. It is explanatory drawing which shows the state which extracted the fixing member, the cap member, the clamping member, and the liquid feeding means from the united thing of the plastic container main body and the elongate flow path member in the state of FIG. FIG. 17 is an enlarged explanatory view showing a main part of FIG. 16. It is explanatory drawing which shows the state which extracted the fixed member, the cap member, the fastening member, and the liquid feeding means from the plastic container main body when the elongate flow path member is not used in the coating apparatus. It is a perspective view which shows an example of a cap member. 5 is attached to the opening of the plastic container main body, and one end of the liquid feeding means is communicated with the liquid discharge port of the upper end of the long channel member. FIG. 7 is a main part explanatory view showing a state in which the liquid delivery pipe means is attached in a sealed state to the liquid discharge port of the upper end mounting portion of the long channel member by the sealing attachment means, and is different from the configuration example of FIG. The example of a structure is shown.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to FIGS. 1 to 17 in the accompanying drawings, which are exemplarily shown and can be variously modified without departing from the technical idea of the present invention. Needless to say.

  FIG. 1 is an explanatory view showing a schematic configuration of a coating apparatus of the present invention. In FIG. 1, reference numeral 60 denotes a coating apparatus of the present invention, which has a pressurized tank 22. A plastic container 10 is installed in the pressurized tank 22. The plastic container 10 has a plastic container body 12 and an elongated channel member 18. Reference numeral 62 denotes compressed air supply means for supplying compressed air into the pressurized tank 22 via the air supply pipe 21. Reference numeral 20 denotes a liquid feed pipe means for supplying a viscous liquid. One end of the liquid feed pipe means 20 communicates with the opening 14 of the plastic container body 12, and an application nozzle means 64 is provided at the other end of the liquid feed pipe means 20. It is connected and performs an operation of supplying the viscous liquid filled in the plastic container 10 to the application nozzle means 64. Reference numerals 66 and 68 denote an open-side air supply pipe and a closed-side air supply pipe that connect the compressed air supply means 62 and the application nozzle means 64, respectively, for turning the application nozzle means 64 on and off.

  An elongate flow path member 18 of the plastic container 10 is detachably attached to the opening 14 of the plastic container main body 12 and has an upper end attachment portion 24 having a liquid discharge port 23 opened at the center, and the plastic container main body. 12 and a long channel portion 26a integrally attached to the mounting portion 24 so as to extend into the interior, and the long channel member 18 is detachably attached to the opening portion 14. It is configured to be mounted. An upper end mounting portion 24 of the elongated channel member 18 is fitted into the opening 14 of the plastic container body 12, and the liquid feeding means 20 is inserted into the liquid discharge port 23 of the upper end mounting portion 24. It is preferable that the liquid feed pipe means 20 is attached to the liquid discharge port 23 in a sealed state by the seal mounting means 70 having the configuration shown in FIG.

  FIG. 2 is a cross-sectional explanatory view showing an embodiment in which a plastic container is installed inside a pressurized tank, and shows a state in which the plastic container body is filled with a viscous liquid. In FIG. 2, reference numeral 10 denotes a plastic container having a plastic container body 12. The plastic container body 12 is formed of a plastic material having flexibility so that it can be crushed by pressurization, for example, polyethylene or polypropylene. However, soft polyethylene is used because of its flexibility, economy, and ease of molding. Especially suitable. An opening 14 is opened in the upper part of the plastic container body 12. The plastic container main body 12 can be filled with a viscous liquid 16. When the viscous liquid 16 is filled in the plastic container body 12, when pressure is applied from the outside of the plastic container body 12, the plastic container body 12 is deformed and reduced by pressurization, and finally The crushed and viscous liquid 16 is pressed and discharged from the opening 14 via the liquid feeding pipe means 20. Teflon (registered trademark) is suitable for the material of the liquid feeding means 20.

  As the viscous liquid 16, a viscous liquid having a viscosity of 5 to 500 Pa · s / 23 ° C., preferably 10 to 100 Pa · s / 23 ° C., more preferably 15 to 60 Pa · s / 23 ° C. is applicable. Examples of the viscous liquid 16 include a curable composition having adhesiveness. Examples of the curable composition having adhesiveness include an adhesive, a sealing material, and a potting material. The tack-free time (TFT) of the viscous liquid is suitably in the range of 0 to 60 minutes, preferably 0 to 10 minutes, more preferably 0 to 3 minutes. In the coating apparatus of the present invention, when applied to a viscous liquid having a viscosity and tack-free time in the above range, a great effect is achieved that it is less likely to become dirty than conventional products.

  The curable composition having adhesiveness is preferably a room temperature curable curable composition that can be cured at room temperature by touching air such as a moisture curable type or an oxygen curable type, in particular, a modified silicone type, a polyurethane type, A moisture-curing adhesive such as silicone is more preferably used.

  In FIG. 2, reference numeral 18 denotes an elongate flow path member, which is attached to the opening 14 so as to extend into the plastic container body 12, and when the viscous liquid 16 is pressurized and discharged, It is configured to have a function of ensuring the formation of 16 flow paths. The long channel member 18 only needs to act so as to form a viscous liquid channel, and various forms can be considered as will be described later. In the illustrated example of FIG. A long flow passage portion 26a composed of a long cylindrical tube body 30a integrally attached to the attachment portion 24 so as to extend into the plastic container body 12. A structure in which one or a plurality of (in the illustrated example, plural) flow path holes 32 are opened on the side wall of the cylindrical tube body 30a is shown. Reference numeral 28 denotes a lower end opening end of the elongated channel member 18.

  The material of the long channel member is not particularly selected as long as it can be molded, but it is flexible plastic material, for example, polyethylene, polypropylene, nylon, fluoro rubber, silicone cone rubber, EPDM, because it is easy to fit. , SBS, SIS, SEBS, etc. are good, injection molding is easy and inexpensive, and olefin resins such as polyethylene and polypropylene are better, especially soft polyethylene that is soft and inexpensive. The long channel member has a simple mold structure when the shape of the long channel portion is appropriately selected when the upper end mounting portion is formed of a simple cylindrical (rotary body) structure. By combining them, a long channel member can be manufactured at low cost.

  In FIG. 2, reference numeral 22 denotes a pressurized tank, which is configured such that pressurized air is introduced into the inside through a compressed air supply means (not shown) through an air supply pipe 21. When the plastic container 10 is used, it is used in a state where it is installed in the pressurized tank 22, and as shown in FIG. 3, pressure (for example, pressurizing conditions 0.3 to 1 is applied from the outside of the plastic container 10). 0.0MPa), the plastic container body 12 is pressurized and deformed, and the viscous liquid 16 inside is discharged from the opening 14 through the liquid feeding means 20, and finally, as shown in FIG. As described above, the plastic container main body 12 is completely crushed by pressurization, and works so that all the viscous liquid 16 accommodated therein is discharged. Then, the completely crushed plastic container 10 as shown in FIG. 4, in other words, the plastic container main body 12 and the long channel member 18 remain in a crushed state without being reused. Disposal is possible. For example, when the long channel member 18 is reused, the long channel member 18 after use is pulled out from the plastic container main body 12 and used. The viscous liquid adhering to the member 18 scatters around and causes dirt, but in the present invention, the elongate flow path member 18 can be discarded as it is together with the plastic container main body 12, so that such dirt is generated. There is an advantage that there is nothing.

  FIG. 5 is an explanatory view showing a first example of a long channel member used in a plastic container used in the coating apparatus of the present invention, (a) is an upper surface explanatory view, and (b) is a sectional explanatory view. is there. 6A and 6B are drawings showing a long channel member similar to that in FIG. 5, where FIG. 6A is a perspective explanatory view showing the whole, and FIG. 6B is a perspective explanatory view showing only the long portion with the upper end omitted. . As shown in FIGS. 5 and 6, the elongate flow path member 18 is attached to the opening 14 of the plastic container body 12 and has an upper end mounting portion 24 having a liquid discharge port 23 opened in the center. And an elongated channel portion 26a integrally attached to the mounting portion 24 so as to extend into the plastic container body 12 and having a through channel 25a opened at the center.

  The upper end mounting portion 24 has an inner peripheral wall 27 that forms the liquid discharge port 23 and an outer peripheral wall 31 that is provided at a position spaced apart from the inner peripheral wall 27 by a support wall 29 with a predetermined interval. An inner diameter of the inner peripheral wall 27 is larger at the upper portion than at the lower portion, and an upper end surface of the inner peripheral wall is a tapered portion 33 inclined inward. An upper end portion of the outer peripheral wall 31 is bent outward to form an outer peripheral step portion 35. The elongate flow path member 18 can be detachably attached to the opening 14 by fitting the outer peripheral step 35 to the outer peripheral edge of the opening 14 of the plastic container body 12.

  Since the opening 14 of the plastic container main body 12 is formed in a wide mouth, if the elongated channel member 18 is detachably attached to the opening 14, the elongated channel member 18 is provided. When the viscous liquid 16 is injected into the plastic container main body 12 without fitting, the viscous liquid 16 can be injected with a margin from the wide opening 14, and after the injection, The procedure for fitting the member 18 into the opening 14 has the advantage that the viscous liquid can be injected without any trouble. On the other hand, if the elongate flow path member 18 is attached to the opening 14 in advance, the viscous liquid 16 becomes viscous via the liquid discharge port 23 opened narrowly in the elongate flow path member 18. The liquid 16 is injected, and the injection operation has a disadvantage that the injection operation is hindered as compared with the case where the injection is performed using the wide opening 14.

  The long channel member 18 acts so that the viscous liquid 16 remaining inside the plastic container body 12 can be discharged or discharged even when the plastic container body 12 is finally crushed. Is essential. In the example of FIGS. 2 to 6, one or more (in the illustrated example) are provided on the side wall of the long cylindrical tube body 30 a having the lower end as the opening end portion 28 as the long flow passage portion 26 a of the long flow passage member 18. In the figure, a structure in which a plurality of flow path holes 32 are opened is shown. According to the elongate flow path member 18 having this structure, even if the plastic container body 12 is crushed, the open end 28 at the lower end and one or the plurality of flow path holes 32 remain open. Thus, it is possible to work so as to ensure a discharge flow path for the viscous liquid 16. In the above configuration, since the flow passage hole 32 described above is opened, the viscous liquid 16 first passes through the flow passage hole 32 and then passes through the liquid discharge port 23 and the opening portion 14 to be finally obtained. The liquid is discharged under pressure through the liquid feed pipe means 20. It should be noted that if the flow path hole 32 is sufficiently opened, the opening of the lower end opening end portion 28 is not essential, and it is needless to say that a sufficient flow path can be secured even when the flow path hole 32 is closed.

  Even when the plastic container main body 12 is finally crushed, the structure of the elongated channel portion is configured so that the viscous liquid 16 remaining inside the plastic container main body 12 can be discharged or discharged. In addition to the structure shown in FIG. 5 and FIG. 6, many modes are conceivable. In short, when the viscous liquid 16 is extruded from the plastic container main body 12, it acts so as to secure a discharge flow path for the viscous liquid 16. Needless to say, the structure is not limited to the structure shown in FIGS. 5 and 6.

  The viscous liquid 16 is a curable composition having a moisture-curable adhesive property that is cured by contact with moisture in the air, or a curable composition having an oxygen-curable adhesive property that is cured by contact with oxygen in the air. When the composition is to be applied, the occurrence of dirt due to the scattering of the viscous liquid as described above is completely prevented, and when the above curable composition is applied, the application is simplified. Therefore, a great work improvement is possible.

  The seal mounting means 70 will be described with reference to FIGS. The seal mounting means 70 has a fixing member 72. The fixing member 72 has a cylindrical base 74 having an insertion opening 73 at the center, and an annular flange 75 is formed on the lower outer surface of the cylindrical base 74, and the cylindrical base 74 and the bottom surface of the annular flange 75 are formed. The shape is formed so as to have a shape corresponding to the shape of the upper surface of the upper end mounting portion 24 of the long channel member 18, and a receiving step portion 76 is formed on the upper surface of the annular flange 75, and the cylindrical base body 74. The male screw part 78 is formed on the upper outer surface of the. A tapered portion 79 inclined inward is formed at the lower end portion of the cylindrical base body 74.

Reference numeral 80 denotes a cap member, which has a through hole 84 in contact with the receiving stepped portion 76 at the center of the circular plate 82 and is provided on the inner surface side of the annular side wall 86 that is suspended from the peripheral edge of the circular plate 82. the threadable female screw portion 88 to the male screw portion 14b formed on the outer surface of the cylindrical side wall 14a of the opening 14 of the plastic container main body 12 is formed. Although there is no particular limitation on the shape of the cap member 80, as shown in FIG. 19, if a plurality of (eight in the illustrated example) concave portions 86a are formed on the outer peripheral surface of the annular side wall 86, the cap member 80 is formed. When the member 80 is operated by hand, it is possible to simplify the operation by placing a finger on each recess 86a.

  A tightening member 90 includes a cylindrical member 91 having a central hole 92 formed in the center thereof, and a tightening female screw portion 94 is formed in a lower portion of the inner peripheral surface of the cylindrical member 91. As shown in FIG. 8A, the upper portion of the center hole 92 of the tightening member 90 is formed so as to gradually decrease in diameter toward the upper portion.

  A mode in which the liquid delivery pipe means 20 is attached to the liquid discharge port 23 in a sealed state using the above-described sealing attachment means 70 will be described. The fixing member 72 is brought into contact with the upper surface of the upper end mounting portion 24 of the long channel member 18, and the liquid feeding tube is passed through the center hole 92 of the fastening member 90 and the insertion port 73 of the fixing member 72. The plastic container is in a state where the means 20 is communicated with the liquid discharge port 23 of the upper end mounting portion 24 of the long channel member 18 and the through hole 84 of the cap member 80 is inserted into and contacted with the receiving stepped portion 76. The female screw portion 88 of the cap member 80 is screwed into the male screw portion 14b of the cylindrical side wall 14a of the opening 14 of the main body 12 and screwed, and then the screw screw portion 78 on the upper upper surface of the fixing member 72 is tightened. By tightening and tightening the tightening female screw portion 94 on the inner surface of the center hole of the attaching member 90, the liquid feeding means 20 is connected to the liquid discharge port 23 of the upper end mounting portion 24 of the long channel member 18. To be installed in a sealed state . As described above, since the diameter of the center hole 92 gradually decreases toward the top, the insertion opening of the fixing member 72 can be obtained by screwing the female screw portion 94 to the male screw portion 78. The upper part of 73 is squeezed, and as a result, the liquid feeding pipe means 20 is clamped and fixed, thereby acting to seal between the liquid feeding pipe means 20 and the fixing member 72.

  The upper end mounting portion 24 of the elongated channel member 18 shown in FIGS. 7 and 8A has an inner peripheral wall 27 that forms the liquid discharge port 23 and a support wall 29 from the inner peripheral wall 27 through a predetermined interval. The inner peripheral wall 27 has an outer peripheral wall 31 provided at a spaced position. The inner peripheral wall 27 has an inner diameter larger than that of the lower portion, and an upper end surface of the inner peripheral wall 27 is tapered inwardly. It has the structure which becomes. On the other hand, the lower end portion of the cylindrical base 74 of the fixing member 72 is a tapered portion 79 inclined inward. Accordingly, when the fixing member 72 is brought into contact with the upper end mounting portion 24 of the elongated channel member 18, as shown in FIG. 7, the upper end tapered portion 33 of the inner peripheral wall 27 and the lower end tapered portion of the cylindrical base body 74 are obtained. 79 is in contact with each other to form a sealed state.

  In the example shown in FIG. 8A, the example in which the inner peripheral surface of the fixing member 72 is a smooth surface is shown. However, in order to increase the effect of locking the liquid feeding means 20, FIG. As shown in c), it is also possible to employ a configuration in which one or more (three in the illustrated example) annular taper portions 73a whose diameter decreases downward are formed at the upper end portion of the inner peripheral surface of the fixing member 72.

  As the material of the fixing member 72, 6-nylon is preferable in terms of toughness, and high-density polyethylene (HDPE) is preferably used in terms of ease of wiping off the attached viscous liquid. The cap member 80 may be made of hard polyethylene, and the fastening member 90 is preferably made of polyacetal having lubricity.

  In the illustrated example of FIG. 7B, the lower end portion of the liquid feeding means 20 is set to be flush with the lower end surface of the cylindrical base 74 of the fixing member 72. In the illustrated example of FIG. 20 is set so that the lower end portion of the liquid feeding means 20 is retracted above the inside of the cylindrical base body 74, but the lower end portion of the liquid feeding means 20 hangs downward from the fixing member 72 and does not become a free end. By configuring, it is limited that the viscous liquid 16 scatters from the lower end of the liquid feeding pipe means 20, so that there is an advantage that the occurrence of dirt is largely eliminated. As a mode in which the liquid feeding pipe means 20 is communicated with the liquid discharge port 23 of the long channel member 18, the lower end portion of the liquid feeding means 20 is the liquid discharge port 23 of the long channel member 18. The liquid feeding means 20 may be suspended to the extent that it is inserted into the interior, but the smaller the length of the suspension, the less the contamination will occur. Also in the illustrated examples below, the lower end portion of the liquid feeding means 20 is set in the same manner as in FIG. 15, but the description thereof is omitted.

  The combination of the upper surface shape of the upper end mounting portion 24 of the long channel member 18 shown in FIG. 7 and the lower surface shape of the fixing member 72 can be considered other than the example of FIG. explain.

  In the structural example shown in FIG. 9, the taper inclination direction of the upper end taper portion 33 of the inner peripheral wall 27 of the upper end attachment portion 24 of the long channel member 18 and the lower end taper portion 79 of the cylindrical base 74 of the fixing member 72 is illustrated. 7 and the inner diameter of the inner peripheral wall 27 has the same configuration as that of FIG. 7 except that the upper portion and the lower portion have the same diameter. In this case, contrary to the case of FIG. 7, when the fixing member 72 is brought into contact with the upper end mounting portion 24 of the elongated channel member 18, as shown in FIG. 9, the upper end taper of the inner peripheral wall 27 is obtained. The portion 33 and the lower end taper portion 79 of the cylindrical base body 74 are in contact with each other so as to be in a sealed state.

  In the example of the structure shown in FIG. 10, the installation of the inner peripheral wall 27 of the upper end mounting portion 24 of the long channel member 18 is omitted, the diameter of the liquid discharge port 23 is larger than the diameter of the through channel 25a, and 7 has the same configuration as that of FIG. 7 except that the lower end length of the cylindrical base 74 of the fixing member 72 is extended to the lower side of the support wall 29. In this case, the lower end taper portion 79 of the cylindrical base body 74 is in contact with the inner peripheral edge portion of the support wall 29 so as to be in a sealed state.

  The structural example shown in FIG. 11 is a further modification of the structural example of FIG. 9, and the lower end taper portion 79 of the cylindrical base 74 of the fixing member 72 is omitted and the entire lower surface of the cylindrical base 74 is formed flush. The upper end of the upper end taper portion 33 of the inner peripheral wall 27 of the upper end attaching portion 24 of the long channel member 18 is configured to abut on the lower surface of the cylindrical base body 74.

  The structural examples shown in FIGS. 12 and 13A and 13B show an example in which the sealing action is further improved by using the auxiliary annular member 95. The auxiliary annular member 95 has a through-hole 96 in the center, and an annular tapered flange 98 is provided on the outer peripheral surface of the lower end portion. The structural examples shown in FIGS. 12 and 13 (a) and 13 (b) are basically similar to the structural example shown in FIG. 9, but in the structural example shown in FIG. The point that the auxiliary annular member 95 is interposed when the screw 90 is screwed is different. In the structural example of FIG. 9, an insertion taper portion 74 a is formed on the outer surface of the upper end portion of the cylindrical base body 74 of the fixing member 72, and the distal end portion of the cylindrical base body 74 is inserted into the center hole 92 of the fastening member 90. 12 and 13, the upper end portion of the cylindrical base 74 of the fixing member 72 receives the annular taper flange 98 at the lower end portion of the auxiliary annular member 95 described above. Further, a receiving taper portion 74 b is formed on the inner surface of the upper end portion of the cylindrical base body 74. Further, an inner peripheral step 91 a is formed on the inner peripheral portion of the upper end of the cylindrical member 91 of the tightening member 90, and when the auxiliary annular member 95 is inserted into the center hole 92 of the tightening member 90. The inner peripheral step portion 91 a is configured to abut on and fit to the upper side of the annular tapered flange portion 98. The auxiliary annular member 95 may be formed of a plastic material, but is preferably formed of nylon.

  In the structural example shown in FIGS. 13A and 13B, the structure in which the auxiliary annular member 95 is inserted through the center hole 92 of the fastening member 90 is shown. Any member can be used, and a one-touch joint mechanism can also be applied, and an example thereof will be described with reference to FIGS. 14 and 15, 120 is a tightening member having a one-touch joint mechanism, and has a stepped cylindrical member 122. A center insertion hole 124 is formed in the stepped cylindrical member 122. A small-diameter cylindrical portion 126 is formed in the lower portion of the stepped cylindrical member 122, and a large-diameter cylindrical step portion 128 is provided in the upper portion. A female screw portion 130 is formed on the inner peripheral surface of the small-diameter cylindrical portion 126. Reference numeral 132 denotes a packing disposed in an annular step space above the stepped cylindrical member 122. A lock crow 134 is attached adjacent to the packing 132. Reference numeral 136 denotes a sleeve that presses the lock crow 134. Reference numeral 138 denotes a presser block that works to hold the sleeve 136. By setting it as such a structure, the liquid feeding pipe | tube means 20 will be mounted | worn in the sealing state in the center insertion hole 124 of the clamping member 120 provided with the one-touch coupling mechanism. Various structures of the one-touch joint are known, and in addition to the structures described above, they are described in Japanese Patent Laid-Open Nos. 1-206196, 4-35669, Utility Model Registration No. 2575755, Utility Model Registration No. 2524012, and the like. One-touch joint structure can also be applied.

  With the above configuration, the operation of the coating apparatus of the present invention will be described. First, when compressed air is supplied into the pressurized tank 22 from the compressed air supply means 62 through the air supply pipe 21, it is installed in the pressurized tank 22 and is viscous as shown in FIG. The plastic container 10 filled with the liquid 16 in a full state is pressurized. Next, as shown in FIG. 3, the plastic container 10 is reduced and deformed by pressurization, and the viscous liquid 16 therein is discharged from the plastic container 10 through the long channel member 18. Next, the discharged viscous liquid 16 is ejected from the application nozzle means 64 via the liquid feeding pipe means 20 and applied to the predetermined portion. In this coating operation, in the state where all the viscous liquid 16 is discharged and used, the plastic container 10 is crushed by pressurization as shown in FIG. At this time, the viscous liquid 16 filled in the plastic container 10 is not completely discharged by pressure, and only the crushed plastic container body 12 and the long channel member 18 remain. It is in a state. Then, as shown in FIG. 16, the lid body 22b is removed from the tank body 22a of the pressurized tank 22, and the used plastic container 10 in a crushed state, that is, the plastic container body 12 and the plastic container body 12 The combined product of the fixed member 72, the cap member 80, the fastening member 90, and the liquid feeding means 20 is extracted and separated from the combined product of the long channel member 18 (FIGS. 16 and 17), and the tank The combined product of the plastic container main body 12 and the long channel member 18 left in the main body 22a is discarded. When the long channel member 18 is taken out from the crushed plastic container 10 and is to be reused, the viscous liquid adhering to the long channel member 18 is scattered to contaminate the work site. However, in the present invention, the crushed plastic container 10, that is, the plastic container main body 12 and the elongate flow path member 18 are formed so as to be disposable. There is an advantage that such contamination does not occur.

  In an apparatus in which the long channel member is not installed in the plastic container 106, the liquid feeding means 110 is extended into the plastic container 106 and thrust into the viscous liquid 112 for use. In this case, since the flow path is easily closed when the tip of the liquid feeding pipe means 110 is blocked, an accident may occur such that the entire viscous liquid 112 in the plastic container 106 is not discharged. Even if the entire viscous liquid 112 is discharged, as shown in FIG. 18, if the lid 102 b is removed from the tank body 102 a of the pressurized tank 102 and the liquid feeding pipe means 110 is pulled out from the plastic container 106, the liquid feeding is performed. In addition to the problem that the viscous liquid 112 adhered to the pipe means 110 scatters, in order to prevent the scattering, the viscous liquid 112 needs to be wiped off from the liquid feeding pipe means 110 with a waste (broken piece). . Further, at that time, it is only necessary to wipe off cleanly. However, if the number of times is increased, the residue of the viscous liquid 112 (for example, a cured adhesive) adheres to the liquid feeding means, and the liquid feeding means 110 is used again. At this time, the residue becomes liable to be mixed into the viscous liquid 112, which may cause clogging of each member such as the application nozzle means, resulting in inconvenience that the viscous liquid 112 (for example, adhesive) cannot be applied. End up. In particular, moisture-curing adhesives tend to cause residue of the adhesive and clogging of each member such as the application nozzle means becomes a problem.

  Furthermore, in a pressurized tank used when applying a viscous liquid, for example, a moisture curable adhesive, a pressure of about 0.3 to 1.0 MPa is generally used. Therefore, in order to withstand the pressure and maintain high sealing performance, the lid of the pressurized tank is formed to be thick and heavy (for example, about 6 to 10 kg). The switching operation is usually carried out by three workers (one of whom is changing the plastic container including the insertion and removal of the long liquid feeding means while the other two are lifting the lid). It is what. When replacing the plastic container containing the viscous liquid after the application work is completed, as shown in FIG. 18, the lid is removed, the liquid feeding means is removed from the plastic container, and the old plastic container is discarded. Next, it is necessary to carry out an operation such as storing a new plastic container in the pressurized tank and inserting a long liquid feeding pipe means into the plastic container, and the viscous liquid from the tip of the liquid feeding means, For example, the occurrence of contamination due to the scattering of the adhesive frequently occurs. In addition, when using a moisture-curing type adhesive having a fast curing speed (curing in 3 to 10 minutes) as a viscous liquid, a particularly quick work is required, and the work is difficult. Become.

  Various problems in the case of using only the conventional liquid feeding pipe means are all solved by using the plastic container 10 provided with the long channel member 18. For example, the above-described plastic container switching operation was performed by three persons as described above, but by applying the plastic container in the coating apparatus of the present invention, two persons (while one person is lifting the lid) The remaining one person can replace the plastic container including the insertion and removal of the long liquid feeding pipe means). The plastic container, the long channel member and the coating device in the coating apparatus of the present invention effectively solve the above-mentioned problems that have been regarded as a major problem in the industry, and have very great advantages. is there. As one means for solving the problem that the viscous liquid 16 scatters from the tip of the liquid feeding pipe means 20 and causes contamination, the liquid feeding pipe means 20 is described in the explanation of the illustrated example of FIG. It is effective to employ a configuration in which the front end portion does not protrude downward from the fixing member 72.

  DESCRIPTION OF SYMBOLS 10: Plastic container, 12: Plastic container main body, 14: Opening part, 14a: Cylindrical side wall, 14b: Male screw part, 16, 112: Viscous liquid, 18: Elongate flow path member, 20, 110: Liquid feeding pipe Means, 21, 104: air supply pipe, 22, 102: pressurized tank, 22a, 102a: tank main body, 22b, 102b: lid, 23: liquid discharge port, 24: upper end mounting portion, 25a: through channel, 26a: long channel portion, 27: inner peripheral wall, 28: open end, 29: support wall, 30a: long cylindrical tube, 31: outer peripheral wall, 32: channel hole, 33: upper end taper portion , 35: outer peripheral step part, 36, 40: plate-like body, 36a, 40a, 45: flow path forming point, 37: notch part, 38, 44: space, 39: slit, 42: plate-like support column, 46 : Spiral line, 48: central cavity, 50: lower end open end 52: gap, 53: mesh cylinder, 54: central cavity, 56: lower end opening end, 58: mesh gap, 60: coating device of the present invention, 62: compressed air supply means, 64: coating nozzle means, 66: Open side air supply pipe, 68: Closed side air supply pipe, 70: Sealing mounting means, 72: Fixing member, 73: Insertion port, 73a: Annular taper part, 74: Cylindrical base, 74a: Taper part for insertion, 74b: receiving taper part, 75: annular flange part, 76: receiving step part, 78: male screw part, 79: lower end taper part, 80: cap member, 82: circular plate, 84: through hole, 86: annular side wall 86a: recessed portion, 88, 94: female screw portion, 90: tightening member, 91: cylindrical member, 91a: inner circumferential step portion, 92: center hole, 95: auxiliary annular member, 96: through hole, 98: taper Buttocks, 120: Tightening with one-touch coupling mechanism Member: 122: Stepped cylindrical member, 124: Center insertion hole, 126: Small diameter cylindrical portion, 128: Large diameter cylindrical step portion, 130: Female screw portion, 132: Packing, 134: Lock crow, 136: Sleeve, 138 : Presser block.

Claims (3)

A pressurized tank; compressed air supply means for supplying compressed air into the pressurized tank; a plastic container installed in the pressurized tank; and a liquid feed pipe means having one end communicating with an opening of the plastic container. And application nozzle means connected to the other end of the liquid delivery pipe means,
The plastic container has flexibility that is formed so as to open a wide-mouth opening and to be filled with a viscous liquid and to be crushed by pressurization so that the viscous liquid is pressurized and discharged from the opening. A plastic container main body and a long flow path that is attached to the opening so as to extend into the plastic container main body and forms a discharge flow path for the viscous liquid when the viscous liquid is pressurized and discharged A member, and
When compressed air is supplied into the pressurized tank, the plastic container installed in the pressurized tank is pressurized and crushed, and the viscous liquid inside is compressed via the elongated channel member. An applicator that discharges from the plastic container and then ejects from the applicator nozzle means via the liquid feed pipe means to apply the viscous liquid to a predetermined site;
The elongate flow path member is detachably attached to the opening of the plastic container body and has an upper end attachment portion having a liquid discharge opening at the center thereof, and extends to the inside of the plastic container body. An elongate flow passage portion integrally attached to the attachment portion, and the elongate flow passage member is detachably attached to the opening, and the opening of the plastic container body The upper end mounting portion of the elongated channel member is fitted to the portion, the liquid feeding means communicates with the liquid discharge port of the upper end mounting portion, and the liquid feeding means is connected to the liquid discharge port by a sealing mounting means. Attached in a sealed state,
The sealing mounting means has a lower surface shape corresponding to the upper surface shape of the upper end mounting portion of the elongated channel member, and a receiving step portion is formed on the lower upper surface and a male screw portion is formed on the upper outer surface; A fixing member having an insertion opening at the center, a through hole that contacts the receiving step at the center of the circular plate, and the inner surface of the annular side wall that is suspended from the peripheral edge of the circular plate. A cap member formed with a female screw portion that can be screwed into a male screw portion formed on the outer surface of the cylindrical side wall of the opening of the plastic container body, and a central hole formed in the central portion and the inner surface of the lower end of the central hole A fastening member having a female screw portion formed thereon,
The fixing member is brought into contact with the upper surface of the upper end mounting portion of the long channel member, and the liquid feeding tube is passed through a central hole of the fastening member, a through hole of the cap member, and an insertion port of the fixing member. Means in communication with the liquid discharge port of the upper end attachment portion of the elongated channel member, and the cylindrical side wall of the opening of the plastic container body with the through hole of the cap member in contact with the receiving step portion The female screw portion of the cap member is screwed into the male screw portion and screwed, and then the female screw portion on the inner surface of the center hole of the fastening member is screwed into the male screw portion on the upper upper surface of the fixing member. By screwing, the liquid feeding means is communicated in a sealed state with the liquid discharge port of the upper end mounting portion of the long channel member ,
An applicator characterized in that at least one annular taper portion whose diameter decreases downward is formed at an upper end portion of an inner peripheral surface forming an insertion port for the fixing member .   The coating apparatus according to claim 1, wherein the viscous liquid is a curable composition having moisture-curable adhesive property or a curable composition having oxygen-curable adhesive property. The coating apparatus according to claim 1 or 2, wherein the elongated channel portion is a tubular body having one or more channel holes formed in a side surface.

Images