JP2008246335A - Coating nozzle for extrusion gun - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a coating nozzle for an extrusion gun capable of performing irregularity-free coating uniform in coating thickness and coating width without causing pulsation. <P>SOLUTION: The coating nozzle 10A for the extrusion gun which is attached to the leading end of the cylinder of the extrusion gun or the cap member of a cartridge and discharging a viscous material to coat target includes a nozzle main body 38 having the underside member 22 of a nozzle main body and the upper side member 26 of the nozzle main body and internally having liquid sump parts 20 and 24, a plurality of leading end upperside ports 38d formed opening toward the top end part 17 of the nozzle main body and the upper side member 26, and a plurality of the leading end underside discharge ports H2 provided to the leading end part of the underside member 22 of the nozzle main body by drilling to communicate with it corresponding to the leading end underside discharge ports H2. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention is an extrusion gun application nozzle that is used by being attached to an extrusion gun, and is preferably used for applying a viscous material to an object to be applied, and particularly used for adhering a tile to an outer wall or the like. The present invention relates to a coating nozzle.

  Conventionally, when an elastic adhesive is applied to a stone or ceramic tile that is an outer wall material at a construction site, a film pack containing an elastic adhesive is inserted into a cylinder and the film pack is pushed out by a plunger. An extrusion gun of a type that applies an elastic adhesive or an extrusion gun of a type in which a cartridge into which a film pack is inserted is loaded on a holding table is used. A single-hole nozzle is widely known as an application nozzle used by being attached to the tip of the extrusion gun. As a single hole type application nozzle, for example, the applicant of the present application has already proposed a nozzle cap structure of a film pack type extrusion gun as shown in Patent Document 1.

  In addition, when attaching the adhesive, a triangular box-shaped tape is provided in the attachment opening that matches the cartridge type adhesive container as an adhesive attachment that can be evenly attached to appropriate parts and shorten the work time. There has also been proposed an adhesive attachment characterized by a hollow integrated type provided with an eye-shaped adhesive outlet (see Patent Document 2 and Claims).

    In a conventional single-hole type application nozzle, for example, when a viscous material such as an elastic adhesive is applied to a tile in a plurality of lines (beads) and is applied to the outer wall, it is applied to the entire surface of one tile. It was necessary to reciprocate the extrusion gun many times, and it was time consuming and labor intensive.

  Therefore, for example, the applicant of the present application has proposed a viscous liquid flat coating nozzle with a nozzle cap, which is attached to the tip of a cartridge-type extrusion gun or the like and can apply a plurality of linear coatings simultaneously. (Patent Document 3).

  As an extrusion gun of a type in which a cartridge into which a film pack is inserted is loaded on a holding stand, for example, the applicant of the present application has proposed an extrusion mechanism for a film pack (Patent Document 4).

  However, in these conventional techniques, since the nozzle is integrally formed in a cylindrical shape, when the adhesive hardens inside the nozzle and clogs, the nozzle has to be discarded.

  In addition, when ejecting adhesive using a multi-hole nozzle with an extrusion gun, each time a handful of the grip of the extrusion gun is ejected, a handful of adhesive, etc., is ejected. The adhesive is applied in multiple lines (beads) by repeatedly gripping and releasing. (1) Since the discharge of adhesive stops when the grip is in the open state, release after gripping the grip. Pulsation inevitably occurs in the state, and pulsation occurs intermittently, resulting in unevenness of the coating layer thickness, and (2) the beginning and end of the coating layer section for each handful of grip. Only the thick and thick coating layer became, and the middle of the section was thin and thin.

In addition, if the nozzle structure is complicated in order to solve the above-described problem, the cost for producing the nozzle is increased, resulting in a problem that the unit price of the nozzle in the market increases.
JP-A-5-301064 JP 2000-93876 A JP 2006-341167 A JP 2002-331262 A

  The present invention has been made in view of the above problems, and (1) to provide a coating nozzle for an extrusion gun capable of uniform coating with a uniform coating thickness and uniform coating width without causing pulsation. Objective.

  The application nozzle for an extrusion gun of the present invention is an application nozzle for an extrusion gun that is attached to the tip of a cap member of a cylinder or cartridge of an extrusion gun, and discharges and applies a viscous material. A nozzle body having a main body upper member and a liquid reservoir inside; a plurality of front end upper discharge ports formed at the front end of the nozzle main body upper member; and a nozzle main body lower member; The front end portion includes a plurality of lower front end discharge ports corresponding to the upper end discharge port and opened in communication with the front end portion.

  In addition, it is preferable that the plurality of tip upper discharge ports are configured such that the tip upper discharge ports near the center of the plurality of tip upper discharge ports open the highest.

  It is further preferable that the plurality of upper end discharge ports are gradually opened higher toward the upper end discharge port near the center of the plurality of discharge ports.

  The bottom surface of the nozzle body is formed with a contact bottom surface in contact with the surface of the object to be coated and an adjacent bottom surface adjacent to the contact bottom surface, and the bottom discharge port at the front end is opened in the contact bottom surface. It is preferable to further open an adjacent rear discharge port communicating with the lower discharge port on the bottom surface on the bottom surface.

  When the discharge port is provided as described above, the lower discharge port on the front end and the adjacent rear discharge port act as a buffer port (buffer port), and the conventional (1) adhesive gun is opened when the grip of the extrusion gun is opened. Since the discharge stops, pulsation inevitably occurs in the open state after gripping the grip, and the pulse pulsates intermittently, resulting in non-uniform thickness of the coating layer. (2) Only the beginning and end of the section of the coating layer for each handful becomes a thick and thick coating layer, and the problem that the middle of the section is thin and thin is solved, elastic bonding such as when bonding tiles to the outer wall When the agent is applied to the outer wall in multiple lines (beads), the coating thickness and width of each line can be applied uniformly and evenly, eliminating the pulsation problem without causing pulsation. There is an advantage of being. In addition, so-called linear (bead-shaped) coating is possible, which is preferable.

  Also, when applying tiles to the outer wall after applying an elastic adhesive to the tile, etc., when there are a plurality of discharge ports as described above, the height of the top discharge port is the center of the plurality of discharge ports. If the top upper discharge outlet in the vicinity is opened to the highest, the coating thickness near the center is the highest and the coating thickness on both the left and right sides is reduced. There is an advantage of not protruding. The protrusion of the elastic adhesive or the like is further effectively suppressed by gradually increasing the height of the upper discharge port at the tip toward the upper discharge port near the center of the plurality of discharge ports. It is done.

  An extrusion gun coating nozzle suitably used in the present invention is an extrusion gun coating nozzle which is attached to the tip of a cap member of a cylinder or cartridge of the extrusion gun and discharges and applies a viscous material. A nozzle body lower member having a side liquid reservoir portion and having a large tip diameter, and a nozzle body upper member having an upper liquid reservoir portion therein and having a large tip diameter corresponding to the nozzle body lower member A coupling means for detachably coupling the nozzle body lower member and the nozzle body upper member, and a plurality of nozzles provided at or near the tip of the nozzle body lower member and the nozzle body upper member. An outlet of the nozzle body, and a lower member base end of the nozzle body upper member and a male screw part provided at the upper member base end of the nozzle body upper member, and a lower side of the nozzle body lower member Element An end portion and an upper member base end portion of the nozzle body upper member are fitted to each other so as to be able to come into contact with and away from each other to form a nozzle body. The viscous material is discharged.

  The coupling means is preferably a fixing means or a hinge part.

  The coupling means is preferably provided at the tip of the nozzle body lower member and the nozzle body upper member. The fixing means can be constituted by, for example, a bolt or a nut, and the nozzle body lower member and the nozzle body upper member can be directly fixed by a bolt or nut.

  The coupling means includes, for example, a hinge portion provided at the tip of the nozzle body lower member and the nozzle body upper member, and the lower member base end of the nozzle body lower member and the nozzle body upper member It is also possible to configure so that the upper member base end portion is fitted in and out of contact with each other.

  If the coupling means is provided at the tip of the nozzle body lower member and the nozzle body upper member, the lower member base end portion of the nozzle body lower member and the nozzle body upper side by the function of the coupling means Since the upper member base end portion of the member is slidably fitted to each other, the lower member base end portion of the nozzle body lower member and the upper side of the nozzle body upper member are used when the extrusion gun application nozzle is used. After joining and fitting with the base end of the member, the male screw portion is screwed onto the female screw portion provided at the tip of the cap member of the cylinder member of the extrusion gun or the cap member of the cartridge, and the use is finished. Remove the application nozzle for the extrusion gun from the distal end of the cap member of the extrusion gun, and the lower member base end of the nozzle body lower member and the upper member base end of the nozzle body upper member It is possible to expand the coating nozzle for the extrusion gun brought apart and. Note that in this specification, “contact / separation freely” means that joining or abutment and separation can be performed freely.

  If the coupling means is provided at the distal ends of the nozzle body lower member and the nozzle body upper member, the lower member proximal end of the nozzle body lower member and the upper member proximal end of the nozzle body upper member Since the parts are fitted to each other so as to be able to contact and separate from each other, there is an advantage that it is not necessary to engage the nozzle body lower member and the nozzle body upper member using a fastener or the like.

  Thus, if the extrusion nozzle coating nozzle suitably used in the present invention can be developed as required, the lower liquid reservoir and the upper side after the use of the extrusion gun coating nozzle are used. There is an advantage that the viscous material remaining in the liquid reservoir and cured can be easily taken out. In addition, the inside of the extrusion gun application nozzle can be easily cleaned and washed. In addition, as a shape of the said application nozzle for extrusion guns, it is preferable from a viewpoint of application | working workability that it is the taper thin flat shape by which the front-end | tip was large diameter. Examples of the viscous material include an elastic adhesive.

  In addition, since the tip of the extrusion gun coating nozzle suitably used in the present invention has a large diameter, when applying a viscous material such as an elastic adhesive to an object to be coated such as a tile, the width of the tile or the like If an application nozzle for an extrusion gun having a tip is used, there is an advantage that the entire surface of the tile can be applied at once.

  The discharge port is provided at the tip of the nozzle body lower member and the nozzle body upper member, or is provided near the tip of the nozzle body lower member and the nozzle body upper member. do it.

  As the material of the application nozzle for the extrusion gun of the present invention, for example, an olefin resin such as polypropylene is preferably used, but it may be made of other synthetic resins, or may be made of other materials such as metal. is there.

  In addition, the application nozzle for the extrusion gun includes a fitting groove provided on a peripheral edge of one of the nozzle body lower member or the nozzle body upper member, and the other nozzle body lower member or nozzle body upper member. And a fitting protrusion provided on the peripheral edge of the nozzle body, and when the nozzle body upper member is fitted to the nozzle body lower member to form a nozzle body, the lower liquid reservoir and the upper liquid reservoir are It is preferable that the viscous material be configured to prevent leakage.

  Further, when one of the nozzle body lower member or the nozzle body upper member is erected on the inner side of the side surface of the nozzle body lower member and used as the nozzle body, A first wing plate and a second wing plate formed to correspond to the side surface shape so as to contact the side surface, and the nozzle body upper member is fitted to the nozzle body lower member to form a nozzle body It is preferable that the viscous material is prevented from leaking from the lower liquid reservoir and the upper liquid reservoir.

  With this configuration, it is possible not only to easily attach and detachable, but also to prevent the viscous material from leaking out from the lower liquid reservoir and the upper liquid reservoir. is there.

  Furthermore, since the above-described configuration can be integrally manufactured by injection molding using a thermoplastic resin, particularly an olefin resin such as polypropylene, the number of manufacturing steps can be reduced, and the manufacturing cost can be reduced as a result. There is an advantage.

  An attachment auxiliary tool suitably used in the present invention is an attachment auxiliary tool for an extrusion gun application nozzle used to attach the extrusion nozzle application nozzle to an extrusion gun whose cap member tip is a male thread. A hollow portion and a female thread portion provided on the inner peripheral surface of the hollow portion, and the mounting aid is attached to the tip of the cap member of the cylinder or cartridge, and the extrusion nozzle coating nozzle is attached to the mounting aid. It is characterized by being attached.

  If it does in this way, even if it is an extrusion gun by which the cap member front-end | tip is an external thread part, it will become possible to attach the said application nozzle for extrusion guns easily by using the said mounting aid. A thermoplastic resin can be used as the material of the attachment aid, and for example, an olefin resin such as polypropylene is preferably used.

  A nozzle cap structure suitably used in the present invention has a cap member detachably attached to the tip of a cylinder or cartridge of an extrusion gun, and a shape corresponding to the inner shape of the cap member. And an anti-smudge cover member positioned on the cap member, wherein the extrusion gun application nozzle is attached to the cap member. Providing the anti-smudge cover member in this manner is preferable because there is no fear that the cap member will become dirty even if a viscous material such as an adhesive remains inside the cap member. As a material for the dirt prevention cover member, for example, an olefin resin such as polypropylene is preferably used.

  In addition, the above-described extrusion gun application nozzle attachment auxiliary tool can be attached to the nozzle cap structure.

  ADVANTAGE OF THE INVENTION According to this invention, it has the remarkable effect that (1) the application nozzle for extrusion guns which can apply | coat by the uniform application | coating thickness and uniform application | coating width without a nonuniformity without producing pulsation can be provided.

  In addition, the inside of the nozzle can be cleaned and reused, and there is an effect that the molding is easy and the production cost is low.

  The coating nozzle of the present invention is suitable for bonding tiles using an extrusion gun, particularly using an elastic adhesive.

  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the accompanying drawings. However, the illustrated examples are shown by way of example, and it goes without saying that various modifications can be made without departing from the technical idea of the present invention. .

  1 is a top perspective view showing an embodiment of an application nozzle for an extrusion gun according to the present invention, FIG. 2 is a cross-sectional view taken along the line II-II of FIG. 1, and FIG. 3 is an application nozzle for an extrusion gun according to FIG. FIG. 4 is an exploded perspective view showing one embodiment of the nozzle cap structure of the extrusion gun of the present invention, and FIG. 5 is a perspective view showing a state in which the application nozzle for the extrusion gun of FIG. 1 is opened. 6 is an enlarged view of the main part of FIG. 5, (a) is an enlarged view of the main part of the A part, (b) is an enlarged view of the main part of the B part, and (c) is an enlarged view of the main part of the C part. .

  7 is a cross-sectional view taken along line VII-VII in FIG. 5, FIG. 8 is a front view of the application nozzle for extrusion gun in FIG. 1, and FIG. 9 is an application state in which an elastic adhesive is applied to the tile with the application nozzle for extrusion gun in FIG. FIG. 10 is an enlarged cross-sectional view of the main part of FIG. 9, FIG. 11 is an enlarged cross-sectional view of the main part of another embodiment of the application nozzle for an extrusion gun of the present invention, and FIG. 12 is an extrusion of FIG. 13 is a bottom perspective view of the gun application nozzle, FIG. 13 is a schematic view showing a state in which an elastic adhesive is applied by the extrusion gun application nozzle of FIG. 1 and the tile is attached to the outer wall, and FIG. FIG. 15 is a perspective view showing an application state in which an elastic adhesive is applied to a tile using the extrusion gun application nozzle shown in FIG. 14, and FIG. 16 is an enlarged cross-sectional view of a main part of FIG.

  17 is a top perspective view showing another embodiment of the application nozzle for the extrusion gun, FIG. 18 is a front view of the application nozzle for the extrusion gun in FIG. 17, FIG. 19 is a perspective view showing the prevention cover member, and FIG. FIG. 21 is an exploded perspective view showing another embodiment of the nozzle cap structure of the extrusion gun, and FIG. 22 is a perspective view showing another embodiment of the mounting aid. FIG. 23 is a top perspective view showing still another embodiment of the application nozzle for an extrusion gun of the present invention.

  One embodiment of the present invention will be described with reference to FIGS.

    1-10, the code | symbol 10A shows the application nozzle for extrusion guns which concerns on this invention. The extrusion gun application nozzle 10A is attached to the cap member tip 18 of the cap member 16 of the cylinder 14 of the extrusion gun 12, and applies an extrusion gun application for discharging and applying the viscous material W (elastic adhesive in the illustrated example). A nozzle body lower member 22 having a lower liquid reservoir 20 inside and having a large tip diameter, and an upper liquid reservoir 24 inside corresponding to the nozzle body lower member 22. The nozzle body upper member 26 having a large tip diameter, the nozzle body lower member 22 and the nozzle body upper member 26 are provided at the tips of the nozzle body lower member 22 and the nozzle body upper member 26. A coupling means 28 (which is a hinge part in the illustrated example) for coupling the base body to the base end so as to be separable from each other, and a distal end portion 23 of the nozzle body lower member 22 and a distal end portion 27 of the nozzle body upper member 26 are provided. The plurality of discharge ports (five in the illustrated example) 30a, 30b, 30c, 30d, 30e, the nozzle body lower member 22 and the nozzle body upper member 26, the upper member base end portion 32, and the lower member base And a male screw part 36 provided at the end part 34, and the lower member base end part 34 of the nozzle body lower member 22 and the upper member base end part 32 of the nozzle body upper member 26 can be brought into and out of each other. The male screw part 36 is screwed to the female screw part 40 provided at the cap member tip 18 of the cap member 16 of the cylinder 14 of the extrusion gun 12, and the viscous material W is discharged. It is comprised so that it may become.

  In the illustrated example, the coupling means 28 is constituted by a hinge portion provided at the tip of the nozzle body lower member 22 and the nozzle body upper member 26, and the lower member of the nozzle body lower member 22. Although an example in which the base end portion 34 and the upper member base end portion 32 of the nozzle body upper member 26 are fitted to each other so as to be able to come into contact with and separate from each other has been shown, Any configuration may be adopted as long as the member 22 and the nozzle body upper member 26 are coupled to each other by a coupling means so as to be separated from each other. For example, the coupling means 28 may be a fixing means using bolts or nuts, and the nozzle body lower member 22 and the nozzle body upper member 26 may be directly fixed by bolts or nuts.

  If the male thread portion 36 is tapered, for example, about 1 to 1.5 degrees so as to have a slightly tapered shape, it can be easily screwed when screwed into the cap member tip 18, and screwing is also possible. It is preferable because it can be firmly formed. In the illustrated example, the taper is 1 degree.

  As shown well in FIG. 4, the extrusion gun 12 includes a cylinder 14 filled with a film pack 19 containing a viscous material W, a grip portion 13 attached to the rear end of the cylinder 14, and the film pack 19. A plunger 21 to be pressed and a cap member 16 detachably attached to the tip of the cylinder 14 are included. In use, the film pack 19 is opened with a scissors N or the like so that the viscous material W comes out. Note that the crimped portion K at the front end that is squeezed using an aluminum wire or the like at the time of opening is not separated from the film pack 19 and remains attached to the front end, so that it does not become garbage in the workplace.

  Reference numeral 17 denotes a dirt prevention cover member that has a shape corresponding to the inner shape of the cap member 16 and is positioned inside the cap member 16. When the anti-smudge cover member 17 is provided in this way, even if the viscous material W remains inside the cap member 16, there is no fear that the cap member 16 gets dirty.

  If comprised as mentioned above, the lower member base end part 34 of the nozzle body lower member 22 and the upper member base end part 32 of the nozzle body upper member 26 can be brought into contact with and separated from each other by the action of the coupling means 28. When the extrusion gun application nozzle 10A is used, the lower member base end portion 34 of the nozzle body lower member 22 and the upper member base end portion 32 of the nozzle body upper member 26 are joined. The male screw portion 36 is used by being screwed onto the female screw portion 40 provided at the cap member tip 18 of the cap member 16 of the cylinder 14 of the push-out gun 12, and after the use is finished, The gun application nozzle 10 </ b> A is removed from the cap member tip 18 of the extrusion gun 12, and the lower member base end portion 34 of the nozzle body lower member 22 and the upper portion of the nozzle body upper member 26. It is possible to expand the extruding gun coating nozzles 10A and allowed separates the proximal portion 32.

  Thus, since the extrusion gun application nozzle 10A can be expanded as necessary, it remains in the lower liquid reservoir 20 and the upper liquid reservoir 24 after the use of the extrusion gun application nozzle 10A. The cured viscous material W can be easily taken out. Also, cleaning and washing inside the extrusion gun application nozzle 10A are easy.

  Further, since the tip of the extrusion gun application nozzle 10A has a large diameter, when applying a viscous material such as an elastic adhesive to an object to be applied, the extrusion gun has a tip that matches the width of the tile or the like. If an application nozzle is used, it is possible to apply to the entire surface of the tile at once.

  A plurality of discharge ports (5 in the illustrated example) 30a, 30b, 30c, 30d, and 30e are provided in the hinge portion 28 of the extrusion gun application nozzle 10A, and so-called a plurality of linear (bead-shaped) applications are performed. It is possible. Therefore, if an application nozzle for an extrusion gun having a tip corresponding to the width of a tile or the like is used, the entire surface of the tile can be applied in a plurality of lines at once.

  In the extrusion gun application nozzle 10A, the lower member base end portion 34 of the nozzle main body lower member 22 and the upper member base end portion 32 of the nozzle main body upper member 26 are fitted in such a manner that they can contact and separate from each other. The nozzle body lower member 22 and the nozzle body upper member 26 do not need to be engaged using a fastener or the like.

  Polypropylene is used as the material for the extrusion gun application nozzle 10A, but synthetic resin such as other thermoplastic resin may be used, and olefin resin is particularly preferably used. It can also be made of metal or the like. For example, when the extrusion gun coating nozzle A is made of metal, the coupling means 28 is composed of a fixing means using bolts and nuts rather than the hinge part, and the nozzle body lower member 22 and the nozzle body upper side. The member 26 is preferably coupled.

  As shown in FIGS. 5 to 7, a fitting groove 42 is provided in the peripheral portion of the nozzle body upper member 26, and a fitting protrusion 44 is provided in the peripheral portion of the nozzle body lower member 22. In order to prevent the viscous material W from leaking out from the lower liquid reservoir 20 and the upper liquid reservoir 24 when the nozzle body upper member 26 is fitted to the nozzle main body lower member 22 to form the nozzle body 38. It is configured.

  With such a configuration, not only can the attachment and separation be performed easily, but also the viscous material can be effectively prevented from leaking from the lower liquid reservoir 20 and the upper liquid reservoir 24. Can do.

  The application nozzle 10A for the extrusion gun can be integrally manufactured by injection molding using an olefin resin such as a thermoplastic resin, in particular polypropylene, so that the manufacturing process can be reduced, resulting in a low manufacturing cost. There is an advantage that it can be done. In the illustrated example, polypropylene was used.

  The shape of the discharge ports 30a to 30e of the extrusion gun application nozzle 10A is well shown in FIGS. 5, 8, and 10, and is formed to open forward at the tip 27 of the nozzle body upper member 26. A plurality of tip upper discharge ports H1, and a plurality of tip lower discharge ports H2 opened in correspondence with and in communication with the tip upper discharge port H1 at the tip portion 23 of the nozzle body lower member 22. It is configured to include. Further, the tip upper discharge port H1 is configured such that the tip upper discharge port H1 of the discharge port 30c near the center of the plurality of discharge ports 30a to 30e opens the highest (see FIG. 8). Further, the height of the upper end discharge port H1 of the discharge ports 30a to 30e is gradually increased toward the front end upper discharge port H1 of the discharge port 30c near the center of the plurality of discharge ports 30a to 30e. Has been.

  When the discharge ports 30a to 30e are provided as described above, the lower discharge port H2 at the tip acts as a buffer port (buffer port), and (1) the adhesive is discharged when the grip of the conventional extrusion gun is opened. Because it stops, pulsation inevitably occurs in the open state after gripping the grip, and the pulse pulsates intermittently, resulting in unevenness of the coating layer thickness, and (2) a handful of grip Only the first and last sections of each coating layer are thick and thick coating layers, and the problem that the middle of the section is thin and thin is eliminated.

  That is, as well shown in FIGS. 9 and 12, when the viscous material W (elastic adhesive in the illustrated example) is applied to the tile S using the extrusion gun application nozzle 10A, it is applied in a plurality of lines (beads). Further, the coating thickness and coating width of each line can be applied uniformly and uniformly as shown in FIG. 9, and the problem of intermittent pulsation can be solved without causing pulsation.

  Further, when an elastic adhesive is applied to the tile S or the like and the tile is attached to the outer wall G, when there are a plurality of discharge ports as described above, as shown in FIG. The top upper discharge port near the center of the plurality of discharge ports 30a to 30e is the highest, and the height gradually increases toward the front upper discharge port near the center of the plurality of discharge ports 30a to 30e. Therefore, when the tile S is attached to the outer wall G, it does not protrude from the side.

  11 and 12 show another embodiment of an extrusion gun application nozzle 10B according to the present invention. The extrusion gun application nozzle 10B communicates with the lower discharge outlet H2 and communicates with the adjacent rear discharge nozzle. The outlet H3 is further opened.

  That is, a contact bottom surface 31 in contact with the surface T of the tile S to be coated and an adjacent bottom surface 33 adjacent to the contact bottom surface 31 are formed at the tip 23 of the nozzle body lower member 22, and the tip lower discharge port H2 is opened in the contact bottom surface 31, and an adjacent rear discharge port H3 communicating with the tip lower discharge port H2 is further opened in the adjacent bottom surface 33.

  In such a configuration, the lower discharge port H2 and the adjacent rear discharge port H3 of the extrusion gun application nozzle 10B act as buffer ports (buffer ports), and the conventional (1) extrusion gun grip Since the adhesive discharge stops in the open state, pulsation inevitably occurs in the open state after gripping the grip, and the pulse pulsates intermittently, resulting in unevenness of the coating layer thickness not uniform. (2) The problem is that only the first and last sections of the coating layer for each handful of grips are thick and thick, and the middle of the section is thin and thin, and the tile is bonded to the outer wall. When applying elastic adhesive to the outer wall in multiple lines (beads), etc., the coating thickness and width of each line can be evenly and evenly applied, and intermittent without pulsation. Pulse problem It is eliminated.

  Similarly to the extrusion gun application nozzle 10A, when the tile is pasted after applying an elastic adhesive to the outer wall or the like using the extrusion gun application nozzle 10B, the application thickness near the center is the highest and both the left and right sides The coating thickness of the part becomes low and does not protrude from the side when the tile is attached. The extrusion gun application nozzle 10B has the same configuration as the extrusion gun application nozzle 10A described above except that the adjacent rear discharge port H3 is further opened.

  Another embodiment of the application nozzle for the extrusion gun is shown in FIGS. 14 to 16, reference numeral 10C denotes an extrusion gun application nozzle. The extrusion gun application nozzle 10C has a plurality of discharge ports 300a to 300e having only the tip upper discharge port H1, as well shown in FIGS. The extrusion gun application nozzle 10C has the same configuration as the extrusion gun application nozzle 10A described above except that it is a plurality of discharge ports 300a to 300e having only the upper end upper discharge port H1. Description is omitted.

  As shown in FIG. 14, when only the tip upper discharge port H1 is used in this way, (1) since the discharge of the adhesive stops when the grip of the extrusion gun is in the open state, it is in the open state after gripping the grip. The pulsation inevitably occurs, and the pulsation intermittently pulsates, resulting in unevenness of the coating layer thickness. (2) Only the first and last sections of the coating layer for each handful of grip are thick. There is a problem that the coating layer becomes thicker and the middle of the section is thinner and thinner.

  Another embodiment of the application nozzle for the extrusion gun is shown in FIGS. 17 and 18, reference numeral 10D denotes an extrusion gun coating nozzle. As shown in FIGS. 17 and 18, the extrusion gun application nozzle 10D is a flat type in which flat discharge ports are provided at the tip 23 of the nozzle body lower member and the tip 27 of the nozzle body upper member. A discharge port 130 is provided. The flat discharge port 130 is configured to include a front end upper discharge port H1 and a front end lower discharge port H2 that is open in communication with the front end upper discharge port H1. Therefore, the tip lower discharge port H2 functions as a buffer port (buffer port), and the conventional pulsation problem is solved. The extrusion gun application nozzle 10D has the same configuration as the extrusion gun application nozzle 10A described above except that it has a flat discharge port 130, and a repetitive description thereof will be omitted.

  4 and 19, reference numeral 17 denotes a dirt prevention cover member. The dirt prevention cover member 17 has an opening 46 at the center and a flange 48 at the peripheral edge. The antifouling cover member has a shape corresponding to the inner shape of the cap member 16 and is positioned inside the cap member 16.

  The nozzle cap structure suitably used in the present invention corresponds to the cap member 16 detachably attached to the tip of the cylinder 14 of the extrusion gun 12 and the inner shape of the cap member 16 as well shown in FIG. The anti-smudge cover member 17 having a shape and positioned inside the cap member 16, and any one of the aforementioned extrusion gun application nozzles 10 </ b> A to 10 </ b> E attached to the cap member 16. .

  20 and 21 show an embodiment of a mounting aid that is preferably used in the present invention. 20 and 21, reference numeral 50A denotes a mounting aid of the present invention. The attachment assisting tool 50A is an attachment assisting tool for the extrusion gun used for attaching the extrusion nozzle coating nozzles 10A to 10E to the extrusion gun whose cap member has a male screw portion. And a female screw portion 54 provided on the inner peripheral surface of the hollow portion 52.

  In FIG. 21, the extrusion gun 112 is placed on the holding table 115 by inserting a holding table 115, a grip portion 113 attached to the rear end of the holding table 115, and a film pack 119 containing a viscous material W. It includes a cartridge 114, a piston body 121 inserted into the cartridge 114 for pressing the rear end of the film pack 119, and a cap member 116 provided at the front end of the cartridge 114. Then, the attachment auxiliary tool 50A is attached to the cap member 116, and the extrusion gun application nozzle 10A is attached to the attachment auxiliary tool 50A.

  If it does in this way, even if it is an extrusion gun by which the cap member front-end | tip is an external thread part, it will become possible to attach the said application nozzle 10A for extrusion guns easily by using the said attachment auxiliary tool 50A.

  In FIG. 22, reference numeral 50B indicates another embodiment of the attachment aid of the present invention. The hollow portion 152 includes a first female screw portion 154 and a second female screw portion 156 provided on the inner peripheral surface of the hollow portion 152. With this configuration, even if the cap member has a large diameter, the first female threaded portion 154 is attached to the cylinder cap member and the second female threaded portion 156 is attached to the male threaded portion 36 of the extrusion gun application nozzle 10A. The extrusion gun application nozzle 10A can be easily attached via the tool 50B.

  Furthermore, the nozzle cap structure suitably used in the present invention including the antifouling cover member 17 may be a nozzle cap structure in which the mounting aids 50A and 50B are mounted.

  Yet another embodiment of the present invention is shown in FIG. In FIG. 23, reference numeral 10E denotes an extrusion gun application nozzle. The extrusion gun application nozzle 10E is erected on the inner side portion of the side surface of the nozzle body lower member 22 and is formed on the inner surface of the nozzle body upper member 26 when the nozzle body 38 is used, as shown in FIG. The first blade 56a and the second blade 56b are formed so as to correspond to the side surface shape so as to come into contact with each other.

  Therefore, when the nozzle body upper member 26 is fitted to the nozzle body lower member 22 to form the nozzle body 38, the first blade plate 56a and the second blade plate 56b are brought into contact with the inner surface of the nozzle body upper member 26. In order to prevent the viscous material W from leaking out, the viscous material W is prevented from leaking out from the lower liquid reservoir 20 and the upper liquid reservoir 24 only by the fitting groove 42 and the fitting projection 44. Further, leakage can be prevented more suitably. Extrusion gun application nozzle 10E has the same configuration as extrusion gun application nozzle 10A described above except that it includes first blade plate 56a and second blade plate 56b, and a repetitive description thereof will be omitted.

It is an upper surface perspective view which shows one embodiment of the application nozzle for extrusion guns of this invention. It is the II-II sectional view taken on the line of FIG. 1 of this invention. It is a bottom perspective view of the application nozzle for extrusion guns of FIG. It is a disassembled perspective view which shows one Embodiment of the nozzle cap structure of the extrusion gun of this invention. It is a perspective view which shows the state which opened the application nozzle for extrusion guns of FIG. 5A is an enlarged view of a main part of FIG. 5A, FIG. 5B is an enlarged view of a main part of the A part, FIG. 5B is an enlarged view of a main part of the B part, and FIG. It is the VII-VII sectional view taken on the line of FIG. It is a front view of the application nozzle for extrusion guns of FIG. It is a perspective view which shows the application state which apply | coated the elastic adhesive agent to the tile with the application nozzle for extrusion guns of FIG. It is a principal part expanded sectional view of FIG. It is a principal part expanded sectional view which shows another Embodiment of the application nozzle for extrusion guns of this invention. FIG. 12 is a bottom perspective view of the extrusion gun application nozzle of FIG. 11. It is the schematic which shows the state which apply | coats an elastic adhesive agent with the application nozzle for extrusion guns of FIG. 1, and affixes a tile on an outer wall. It is a front view which shows another embodiment of the application nozzle for extrusion guns. It is a perspective view which shows the application state which apply | coated the elastic adhesive agent to the tile with the application nozzle for extrusion guns of FIG. It is a principal part expanded sectional view of FIG. It is an upper surface perspective view which shows other embodiment of the application nozzle for extrusion guns. It is a front view of the application nozzle for extrusion guns of FIG. It is a perspective view which shows a prevention cover member. It is a perspective view showing one embodiment of an attachment auxiliary tool. It is a disassembled perspective view which shows another embodiment of the nozzle cap structure of an extrusion gun. It is a perspective view which shows another embodiment of an attachment auxiliary tool. It is an upper surface perspective view which shows other embodiment of the application nozzle for extrusion guns of this invention.

Explanation of symbols

  10A, 10B, 10C, 10D, 10E: Extrusion gun application nozzle, 12: Extrusion gun, 13: Grip part, 14: Cylinder, 16: Cap member, 17: Antifouling cover member, 18: Tip of cap member, 19: Film pack, 20: Lower liquid reservoir, 21: Plunger, 22: Nozzle body lower member, 23: Tip of nozzle body lower member, 24: Upper liquid reservoir, 26: Nozzle body upper member, 27 : Tip portion of nozzle body upper member, 28: coupling means, 30a, 30b, 30c, 30d, 30e: discharge port, 31: contact bottom surface, 32: upper member base end portion, 33: adjacent bottom surface, 34: lower member Base end portion, 36: male screw portion, 38: nozzle body, 40: female screw portion, 42: fitting groove, 44: fitting projection, 46: opening, 48: flange, 50A, 50B: mounting aid 52: hollow part, 54: female thread part, 56a: first blade member, 56b: second blade member, 112: extrusion gun, 113: grip part, 114: cartridge, 115: holding base, 116: cap member 119: Film pack, 121: Piston body, 130: Flat discharge port, 152: Hollow part, 154: First female screw part, 156: Second female screw part, 300a, 300b, 300c, 300d, 300e: Discharge port, G: outer wall, H1: tip upper discharge port, H2: tip lower discharge port, H3: adjacent rear discharge port, K: caulking part, N: scissors, S: tile, T: surface to be coated, W: viscosity material.

Claims (4)

An application nozzle for an extrusion gun that is attached to the tip of a cap member of a cylinder or cartridge of an extrusion gun and discharges and applies a viscous material,
A nozzle body having a nozzle body lower member and a nozzle body upper member and having a liquid reservoir inside;
A plurality of upper end discharge ports formed by opening forward at the front end of the nozzle body upper member;
A plurality of lower tip discharge ports that correspond to and communicate with the tip upper discharge port at the tip of the nozzle body lower member; and
An extrusion nozzle for an extrusion gun, comprising:   2. An extrusion nozzle for an extrusion gun according to claim 1, wherein the plurality of upper end upper discharge ports have the highest upper discharge port near the center of the nozzle body grounding surface.   3. The extrusion gun application according to claim 2, wherein the height of the plurality of upper tip discharge ports is gradually increased toward the tip upper discharge port near the center of the nozzle body grounding surface. nozzle.   The bottom surface of the nozzle body is formed with a contact bottom surface in contact with the surface of the object to be coated and an adjacent bottom surface adjacent to the contact bottom surface, and the bottom discharge port at the front end is opened in the contact bottom surface. The extrusion nozzle coating nozzle according to any one of claims 1 to 3, wherein the bottom surface further opens an adjacent rear discharge port communicating with the lower discharge port on the front end.

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