KR102073293B1 - Portable two-component polyurethane foam foaming gun - Google Patents

Abstract

The present invention relates to a portable two-component polyurethane foam gun for foaming two-component polyurethane foams dedicated to heat insulation and sound insulation construction, in which a foam gun body part (1) having a handle part (1a), a trigger lever (1b), and a trigger lever adjustment part (1c), a connection member (2), and a discharge member (3) are sequentially combined and a cleaner self-cleaning container is mounted. Urethane foam is sprayed from a urethane solution storage container and a curing agent storage container coupled to the foam gun body part (1). The two-component polyurethane foam gun according to the present invention can be used efficiently by adopting a small-capacity and large-capacity foamed polyurethane subject and curing agent, and can be used for a long time with a cleaner function, which is very advantageous industrially.

Description

Portable two-component polyurethane foam foaming gun

The present invention relates to a polyurethane foam apparatus, and more particularly, to a portable two-component polyurethane foam apparatus.

Polyurethane foam is composed of a one-component type composed of a single solution of the main raw material, a curing agent and a foaming agent, and a two-component type composed of a main raw material and a curing agent separately. It is widely used as a sound absorbing material to absorb. In buildings, it is also used as a repair work by filling the gap formed after insulation and soundproofing construction.

The one- to two-component polyurethane foam solution is stored in a pressure vessel to use a separate foam device or the polyurethane foam solution stored in a low-capacity pressure vessel is mainly used pistol-type spray gun (GUN) having a manual structure In addition, the polyurethane foam injector is used to wash the remaining foam solution by means of compressed air injection means separately for the purpose of washing the polyurethane foam solution remaining after use.

Taking the prior art related to the pistol-type spray gun (GUN) with respect to the polyurethane foam foaming device, for example, Patent Document 1, a pair of polyurethane solution inlet formed in the front upper portion, and in communication with the inlet and the front end portion A pistol-type body comprising a pair of passages formed with a jet port for ejecting a polyurethane solution and having a needle valve reciprocated, and a space formed so that a trigger is inserted and moved downward in the center; A needle valve inserted into a passage of the body to open and close the jet port while reciprocating; A coil spring for always positioning the needle valve forward; A trigger inserted into the space portion of the body to reciprocate the needle valve; Disclosed is a two-component polyurethane solution foam gun comprising a nozzle which is inserted into the front jet port of the body and is sprayed by mixing and spraying a two-component polyurethane solution jetted from the jet port, the subject of Patent Document 2 Or a spray can containing a hardener and having a can screw nozzle through which the main or hardener is discharged; A can holder accommodating the spray can containing the main body or the hardener to be fixed, and accommodating the spray can such that the can screw nozzles of the respective spray cans are exposed to the outside; One side is connected with the can screw nozzle of each spray can. A valve setting cap connected to one side of the can holder to pressurize the can screw nozzles simultaneously; Discharge hoses respectively connected to the valve setting caps to which the main or hardener discharged from the can screw nozzles is introduced; And a discharge gun configured to adjust a degree of inflow pressure of the main agent or the curing agent flowing from the discharge hose, and a syringe unit configured to rotate the main agent or the curing agent to be rotated and discharged to the outside; The can holder includes: a can receiving hole formed to receive the spray can; A can fixing part formed to correspond to an outer circumference of the spray can and supporting the outer circumference of the spray can; A can fixing groove formed in one side of the can fixing portion to be concave inward and fitted into a can groove formed on an outer circumference of the spray can; Hanging plate elastically formed so that the belt is inserted into the fixed; And a locking groove formed concave on the other side where the locking plate is formed. Disclosed is a two-component polyurethane foam syringe gun comprising:

In addition, Patent Document 3 has a coupling member having a coupling portion to be coupled to the polyurethane container on the upper side; An injection part provided at one side of the coupling part and injecting a filling filled in the container; A handle part provided at the other side of the coupling part, the handle part having a lever to spray the filling filled in the container; And it is formed long in the longitudinal direction, one side is connected to the lever and the other side is located at the end of the injection portion, according to the operation of the lever, including an opening and closing rod for opening or closing the end of the injection portion while moving back and forth in the longitudinal direction The present invention discloses a spray gun further comprising an extension part extending in a longitudinal direction between the coupling part and the handle part or between the coupling part and the injection part.

The inventors of the present application can manufacture a low-capacity foam solution (GUN) that can handle a low-volume and high-capacity foam solution and can be equipped with a detergent of the remaining polyurethane foam solution so that the foam gun can be used for a long time. This invention was completed.

Patent Document 1: Republic of Korea Patent Registration No. 10-0301169 Patent Document 2: Republic of Korea Patent Registration No. 10-1016413 Patent Document 3: Republic of Korea Patent Registration No. 10-1151983

The problem to be solved in the present invention relates to the provision of a polyurethane foaming device dedicated to thermal insulation, soundproofing construction, in particular to the provision of a portable two-component polyurethane foam gun (GUN) for foaming two-component polyurethane foam liquid The purpose is to.

More specifically, an object of the present invention is to provide a portable two-component polyurethane foam gun (GUN) for foaming a low-volume to two-component polyurethane foam liquid.

As a means of solving the above problems according to the present invention, the portable polyurethane foam gun has a foam gun body part 1 having a handle part 1a, a trigger lever 1b, and a trigger lever control part 1c, and a connection member ( 2) and the two-component polyurethane foam foam gun (G) configured to spray urethane foam from the polyurethane solution storage container and the hardener storage container coupled to the foam gun body part 1 in sequence and are combined (G) In the foam gun body portion 1, the urethane solution storage container coupler (U) and the hardener storage container coupler (P) is formed on the upper end of the outside of the end, and is coupled to the connecting member (2) At the end, the nozzles 2a and 2b for discharging the polyurethane solution and the hardener of the storage container are installed to protrude so as to be inserted into the connecting member 2, and the connecting member 2 is provided with a cleaner solution at the upper end thereof. The built-in cleaner container coupling hole C is formed, On the side, the primary mixing space portion S is formed to mix the polyurethane solution and the curing agent sprayed from the nozzles 2a and 2b connected to the cleaner discharge passage C1 for discharging the cleaner solution, and the discharge member 3 ) Is a tubular shape having a predetermined diameter and length for secondary mixing, and the tip includes a nozzle portion 3a having a smaller diameter.

One embodiment of the portable polyurethane foam gun G according to the present invention is connected to a foam gun body portion 1 having a handle portion 1a, a trigger lever 1b, and a trigger lever control portion 1c. Two-component polyurethane foam foam gun configured to spray urethane foam from the urethane solution storage container and the hardener storage container coupled to the foam gun body part 1 by the member 2 and the discharge member 3 sequentially. In G), the foam gun body portion 1, and the connection member 2 and the discharge member (3) comprises a separably coupled to each other.

Another embodiment of the portable polyurethane foam gun G according to the present invention is equipped with a spiral static mix M inside the discharge member 3 to improve mixing of the polyurethane solution and the curing agent. It consists of doing

Another embodiment of the portable polyurethane foam gun (G) according to the present invention is a urethane solution in the polyurethane solution storage container coupling (U) and the hardener storage container coupling (P) of the foam gun body portion (1) And a transfer pump control unit (Ta) connected to a transfer device (T) for transferring a large amount of the curing agent, and controlling a pump of the transfer device inside the handle portion (1a) of the foam gun body portion (1), and a transfer pump The transfer pump controller switch Tb of the controller Ta is installed to be exposed to the trigger lever 1b side, and the transfer pump controller switch Tb is interlocked by turning on the trigger lever 1b to turn on the transfer pump controller Ta. -Off.

Since the two-component polyurethane foam gun (G) according to the present invention can selectively use a low-capacity two-component polyurethane foam to a large-capacity two-component polyurethane, there is a feature that can be efficiently used according to the foaming construction site.

In addition, since the urethane solution remaining in the foam gun can be washed after the foaming is finished, the foam gun can be used for a longer time.

1 is a perspective view showing a two-component polyurethane foam gun (G) according to the present invention
Figure 2 is a perspective view of the main part in a state equipped with a urethane solution storage container (U), a curing agent storage container (P) and a cleaner storage container in a two-component polyurethane foam gun (G) according to the present invention;
3 (A) and 3 (B) are perspective views showing the horizontal and vertical cross sections of the portion H in FIG. 2.
Figure 4 is a view showing the coupling relationship between the control unit and the trigger lever mounted inside the handle portion of the two-component polyurethane foam gun of the present invention

Hereinafter, a two-component polyurethane foam gun according to the present invention will be described in more detail with reference to the drawings, but the present invention is not limited by the following description.

1 is a perspective view showing a two-component polyurethane foam gun (G) of the present invention, with reference to Figure 1 of the two-component polyurethane foam gun of the present invention,

The two-component polyurethane foam gun (G) of the present invention is made by sequentially combining the foam gun body portion 1, the connection member 2 and the discharge member 3, and the foam gun body portion 1 connection member ( 2) and the discharge member 3 is preferably coupled to each other.

The foam gun body portion 1 according to the present invention includes a handle portion 1a, a trigger lever 1b, and a trigger lever adjustment portion 1c, and the foam gun body portion 1 has an outer end at its end side. The urethane solution storage container coupler U and the hardener storage container coupler P are formed. And the discharge member (3) is a tubular shape having a predetermined diameter and length, the tip is formed of a nozzle portion (3a) having a smaller diameter, the cleaner container coupling port (C) having a cleaner solution built in the outer upper end It is.

The nozzle unit 3a formed at the end of the discharge member 3 may be detachably coupled to the end of the discharge member 3, and the nozzle unit 3a may be manufactured in various lengths according to the construction site. It is possible to select and use the nozzle part 3a of an appropriate specification.

The two-component polyurethane foam gun (G) according to the present invention is a urethane solution storage container coupler mounted on the urethane solution storage container (Ua) and the curing agent storage container coupling part (P) of the foam gun body part (1). U) and the foamed urethane solution and the curing agent in the curing agent storage container (Pa) are sprayed to the outside while being mixed through the connecting member 2 and the discharge member (3) by the operation of the trigger lever (1b) to form a urethane foam, The trigger lever adjusting part 1c controls the play of the trigger lever 1b to control the amount of polyurethane foam and the amount of the curing agent.

Accordingly, the discharge of the main and hardeners is controlled by using the trigger lever 1b, and simultaneously discharged to the nozzle portion 3a along the discharge member 3, and the discharge of the main and hardeners using the trigger lever 1b. Discharge through the two-component nozzle portion (3a) may be applied to the general method of use. In addition, it is possible to slightly change the play length of the trigger lever 1b by rotating the trigger lever adjuster 1c, and it is fixed to the disk-shaped trigger lever adjuster 1c and fixed to the two-component polyurethane foam gun G. The circular frame inserted therethrough advances and reverses the upper region of the trigger lever 1b to generate play, and the discharge of the main material and the hardener and the discharge through the nozzle part 3a are controlled according to the play distance.

Figure 2 is a perspective view of the main part in a state equipped with a urethane solution storage container (U), a curing agent storage container (P) and a cleaner storage container in a two-component polyurethane foam gun (G) according to the present invention.

As shown in FIG. 2, a urethane solution storage container coupler (U) and a hardener storage container coupler (P) formed in the foam gun body portion 1 of the two-component polyurethane foam gun G according to the present invention. The urethane solution storage container (Ua) and the curing agent storage container (Pa) are respectively mounted.

In addition, a cleaner storage container (Ca) is mounted to the cleaner container coupling hole (C) formed in the connecting member (2), and the cleaner container coupling hole (C) is a cleaner control lever (C2) for controlling the discharge of the cleaner from the cleaner container. Is installed.

Figure 3 (A) and (B) is a perspective view showing a horizontal and vertical cross-section of the portion H of Figure 2, the foam gun body portion 1 according to the present invention as shown in Figure 3 (A) is a The nozzles (2a, 2b) for discharging the polyurethane solution and the curing agent to the end side coupled to the connecting member 2 is provided to protrude so as to be inserted into the connecting member 2 is made to engage with the connecting member (2).

In addition, as shown in Figure 3 (B) in the interior of the connecting member 2 according to the present invention is a primary mixing space (S) is formed in communication with the cleaner discharge passage (C1), foaming construction When completed, the cleaner flows into the first mixed space part S through the cleaner discharge passage C1 by opening the cleaner control lever C2, and washes the foamed urethane solution and the curing agent to the outside of the discharge member 3. To be discharged.

As shown in FIGS. 3A and 3B, the nozzles 2a and 2b protruding from the foam gun body 1 of the present invention are foamed with their ends discharged from the nozzles 2a and 2b. The urethane solution and the hardener are formed so as to be located up to the inlet side of the primary mixing space (S) to be mixed in the primary mixing space (S).

Figure 4 is a view showing the coupling relationship between the control unit and the trigger lever mounted inside the handle portion of the two-component polyurethane foam gun of the present invention, it is employed to use a large-capacity urethane solution and hardener.

As illustrated in FIG. 4, a feed pump controller Ta for controlling a transfer pump (not shown) of the transfer device T of the mass storage container is embedded in the handle portion 1a of the foam gun body 1. , The transfer pump control switch Tb of the transfer pump control unit Ta is installed to protrude toward the trigger lever 1b, and the transfer pump control switch Tb is interlocked by the trigger lever 1b to operate the transfer pump control unit Ta. Is turned on and off.

When foaming using a large-capacity urethane solution and a curing agent using the two-component polyurethane foam gun (G) of the present invention, the urethane solution storage container coupling unit (U) and the curing agent storage of the foam gun body part (1) The transfer pipe of the urethane solution and the curing agent is connected to the container coupling port P, and the transfer pump of the urethane solution and the curing agent is operated by the operation of the transfer pump control unit Ta, the transfer pump control unit switch Tb, and the trigger lever 1b. While not shown) while spraying the urethane solution and the curing agent through the connecting member 2 and the discharge member 3 while mixing to form a urethane foam.

In addition, as shown in FIG. 4, the two-component polyurethane foam gun (G) according to the present invention is equipped with a spiral static mixer (M) inside the discharge member (3) to secondary the urethane solution and the curing agent. It is made by mixing the urethane solution and the curing agent more uniformly, the static mixer (M) is produced in a variety of forms and commercially available so that those skilled in the art to which the present invention belongs can be easily purchased and used for specific description Omit.

The two-component polyurethane foam gun (G) according to the present invention described above can employ a small capacity and a large capacity polyurethane foam and a curing agent, and can be used efficiently. Have very advantageous features

G: two-component polyurethane foam gun of the present invention
1: foam gun body portion, 1a; Handle, 1b: trigger lever, 1c: trigger lever control
2: connecting member, 2a, 2b: nozzle, 3: discharge member, 3a: nozzle part
C; Cleaner container fitting, C1: Cleaner discharge passage, C2: Cleaner control lever,
S: primary mixing space part, P: hardener storage container coupler, U: urethane solution storage container coupler
M: static mixer, Ta: transfer pump control unit, Tb: transfer pump control unit switch

Claims (5)

Foam gun body portion (1) having a handle portion (1a), the trigger lever (1b), the trigger lever control portion (1c), the connecting member (2) and the discharge member (3) are sequentially coupled to the foam gun body In the two-component polyurethane foam gun (G) configured to spray urethane foam from the urethane solution storage container and the hardener storage container bonded to the part (1),
The foam gun body 1 has a urethane solution storage container coupler (U) and a hardener storage container coupler (P) is formed at the upper end of the outside of the end, and at the end that is engaged with the connecting member (2) Nozzles (2a, 2b) for discharging the urethane solution and the curing agent of the storage container is installed to protrude so as to be inserted into the connecting member (2),
The connecting member 2 has a cleaner container coupling hole C having a cleaner solution embedded therein at an upper end thereof, and inside the nozzles 2a and 2b to which a cleaner discharge passage C1 for discharging the cleaner solution is connected. The primary mixing space (S) is formed so that the urethane solution and the curing agent are injected from the),
The discharge member (3) includes a tubular shape having a predetermined diameter and length and the tip is formed of a nozzle portion (3a) having a smaller diameter,
The foam gun body portion 1, the connection member 2 and the discharge member (3) are coupled to each other separably,
The nozzle portion 3a of the discharge member 3 is formed to be separated from the discharge member 3,
A transfer pump control unit Ta for controlling a transfer pump of a large-capacity storage container is built in the handle portion 1a of the foam gun body 1, and the transfer pump control switch Tb of the transfer pump control unit Ta is triggered. A two-component polyurethane foam gun which is installed to protrude toward the lever (1b) and the transfer pump control switch (Tb) is interlocked by the trigger lever (1b) operation is turned on and off. delete delete delete The two-component polyurethane foam gun according to claim 1, wherein a spiral static mixer (M) is mounted inside the discharge member (3).

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