JPH0545412Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Field of Application> The present invention relates to an extrusion gun mounting structure for a cartridge container containing a sealant mainly used in construction.

<Prior art> Conventionally, cartridge containers for sealing materials were
The main method was to fix the nozzle by fixing the container and nozzle to each other, but each time the nozzle was used, the tip of the fixed nozzle had to be cut off, and the nozzle had to be cut to the same diameter as before in order to maintain the same discharge amount. Moreover, since the nozzle is fixed to the container after use, there are drawbacks such as the sealing material inside the nozzle being lost each time the cartridge container is replaced. For this reason, most systems have now shifted to a replacement nozzle system.

<Problems to be solved by the invention> However, with this replacement nozzle method, the male screw of the discharge port provided at the front of the cartridge container is connected to the female screw at the rear of the nozzle via a fixed holding plate in front of the container holding stand of the extrusion gun. The structure is such that the cartridge container is attached to the extrusion gun by screwing it in, so each time you replace it, you have to remove the screw and then insert the screw of the new container.
The work is extremely troublesome.

The present invention is an attempt to solve the above-mentioned problems.Firstly, it is easy to handle during work.Secondly, the nozzle diameter is kept constant to discharge a fixed amount of sealant. Third, the purpose is to enable the cartridge container to be reliably attached to the extrusion gun, and finally, to minimize the loss of sealing material in the nozzle when replacing the container.

<Means for solving the problems> The present invention was made based on the above-mentioned object, and its gist is an extrusion gun in which a rod having a push plate at the tip is moved forward, and the extrusion gun A combination of a cartridge container placed between a fixed holding plate in front of the holding table and a push plate of the extrusion gun so that the sealing material in the container is discharged from a nozzle by the advancement of the push plate, The nozzle is divided into a discharge member that discharges the sealant and a contact member that presses against the tip of the cartridge container, and these members are removably fixed to each other via the fixed holding plate, and the sealant is discharged. By removably placing the cartridge container between the pusher plate and the contact member, the front part of the cartridge container and the nozzle are in pressure contact with each other as the pusher moves forward, and the sealing material is applied. This is an extrusion gun mounting structure for a cartridge container that discharges from the nozzle. Specifically, the nozzle is divided into a sealant discharge member and a contact member that presses against the front part of the cartridge container body, and these are screwed together via a fixed holding plate of the extrusion gun. Or, by attaching the nozzle to a fixed holding plate,
This is screwed onto a nut via a fixed holding plate. In this way, by simply placing the cartridge container with the moisture-proof membrane broken on the holding table, pulling the feed lever of the extrusion gun, and advancing the pushing plate at the tip of the rod, the reaction force of the holding plate caused by this pushing force can be applied. The structure is such that it can be pressed against the front edge of the container to prevent sealing leakage, and once installed, it can be used many times under the same conditions, and there is no need to pull with force to replace the container. To provide an extrusion gun mounting structure for a cartridge container that can be easily removed without any trouble.

<Function> In the present invention, the nozzle of the cartridge container is fixed to a fixed holding plate at the front of the extrusion gun, the moisture-proof membrane on the discharge side of the cartridge container is torn, and the container is placed on the holding table of the extrusion gun. Next, by pulling the feed lever of the extrusion gun, the rod moves forward the press plate at the tip, and the sealing material inside the container is discharged from the nozzle at the tip of the container to start work. In this case, between the nozzle and the cartridge container, the front part of the container body and the nozzle are brought into close contact with each other under pressure due to the reaction force of the fixed holding plate as the pushing plate moves forward. In this way, the cartridge container is pressed at the rear by the press plate and at the front by the nozzle and the advancing rod of the extrusion gun, so that the sealing material in the container is discharged from the nozzle without leaking between the nozzles. Of course, the cartridge container, nozzle, and push plate are only in pressure contact, and after all the sealant has been discharged, the cartridge container can be easily replaced with a new one by withdrawing the rod of the extrusion gun. can.

<Example> Next, an example of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a partial longitudinal section showing a state in which a cartridge container B is placed on a known extrusion gun A, and this intermediate extrusion gun A holds a main body 1 and a cartridge container B extending in front of the main body 1. The lower part of the main body 1 is provided with a grip part 3 which is integrally connected downward from the main body 1 and a feed lever 5 which is pivotally connected by a pin 4 of the main body 1. By pulling 5, the holding base 2 is removed from the rear of the upper part of the main body 1.
A rod 6 extending above the front plate 7 and spanning between the front plate 7 and the rear plate 8 is moved forward. The rod 6 passes through the advance plate 9 at the upper part of the feed lever 5, and the friction between the advance plate 9 and the rod 6 resists the pressing spring 10 fitted into the rod 6 between the front plate 7 and the rear plate 8. The rod 6 is moved forward with each stroke of the feed lever 5. Further, a brake plate 11 is provided at the rear of the main body 1 to brake the advanced rod 6 at the forward position.
When pulling back, the brake can be released by pushing against the spring 12. Furthermore, a push plate 13 is provided at the tip of the rod 6,
As the rod 6 moves forward, the sealing plate 14 at the rear of the cartridge container B is ruptured and the sliding plate 15 inside the container is opened.
to push the sealing material out from the discharge port 16 at the front end of the cartridge container B.

The cartridge container B has a moisture-proof membrane 17 attached to the inside of the discharge port 16 at the front of the container body 18, and when in use, this membrane can be burst from the outside. The sealing plate 14 is ruptured from the cutting line, and the sliding plate 15 is used to discharge the sealing material inside the container body 18 from the discharge port 16 using the push plate 13 at the tip of the rod 6. This cartridge container B is placed on a holding base 2 between a fixed holding plate 19 provided in front of the extrusion gun A and a push plate 13 of the extrusion gun A.

Normally, a nozzle is fixed to the discharge port 16 of the cartridge container B by screwing, but in the embodiment of the present invention, as shown in FIG. It is divided into an abutting member 21 that comes into pressure contact with each other, and these divided parts are screwed together via a fixed holding plate 19. Specifically, the abutting member 21 consists of a part that abuts the front part of the container body 18 and a sealing material passage part with a male thread 22 on the outer periphery, and the discharge member 20 has a male thread 22 on the inner periphery of the base. The abutment member 21 is provided with a female screw 23 to be screwed together, and has a sealing material discharge portion at the front end.
The passage portion is inserted into a hole 24 provided in the fixed holding plate 19, and is fixed to the fixed holding plate 19 by the male screw 22 and female screw 23.

On the other hand, as shown in FIG. It may be inserted up to the flange portion, which is the portion that contacts the front portion of the container body 18, and fixed to the fixed holding plate 19 with a nut 26 on a male thread 25 provided on the outer periphery of the base of the sealing material discharge portion.

The sealing material is discharged as follows using the extrusion gun A, cartridge container B, and nozzle C having the above configuration. First, the nozzle C is removably fixed to the fixed holding plate 19 of the extrusion gun A, and then the brake plate 11 is pushed and the rod 6 is pulled down to break the moisture-proof membrane 17 of the cartridge container B, and the cartridge container B is placed on the holding stand. 2 Place it on top. In this way, by pulling the feed lever 5 of the extrusion gun A, the advance plate 9 is moved forward, thereby shifting the rod 6 from the free penetrating state to the friction state, moving the rod 6 forward by the stroke of the feed lever 5, and moving the rod 6 forward by the stroke of the feed lever 5. When the lever 5 is released, the forwarding plate 9 becomes loose, the rod 6 remains in the forward position due to the frictional braking of the brake plate 11, and the forwarding plate 9 and the feed lever 5 return to their original positions. By repeating this process, the push plate 13 attached to the tip of the rod 6 moves forward, ruptures the sealing plate 14, and intermittently causes the push plate 13 to move forward.
A necessary amount of sealing material is discharged from the nozzle C through the sliding plate 15 while moving the sealing material 3 forward. In this way, after the sealing material is used up, the brake plate 11 is pushed and the rod is brought back from the state where it is braked by friction to the loose state, and the push plate 13 at the tip of the rod is pulled out from the cartridge container B, and the front part of the cartridge container B is pulled out. The pressure on nozzle C is released.

Therefore, the cartridge container B can be easily removed without any resistance, and the new container B can be installed using the moisture-proof membrane 1.
It can be placed on the holding stand 2 by simply breaking open the holder 7.

<Effects> The present invention uses an extrusion gun to discharge sealing material from a cartridge container from a nozzle. First, the nozzle is brought into pressure contact with the dispensing member for discharging the sealing material and the tip of the cartridge container. These parts are removably fixed via a fixed holding plate in front of the cartridge container holding stand of the extrusion gun, so to replace the cartridge container, pull back the extrusion gun rod and move the push plate away from the cartridge container. You can take out a cartridge container that has used up sealant by simply pulling it apart, place a new cartridge container on the holding stand, and continue dispensing sealant by extrusion.This not only improves work efficiency, but also allows the use of split nozzles. Since it is removably fixed to the fixed holding plate of the extrusion gun by clamping, there is no possibility of an unexpected accident where the nozzle part and the cartridge container come off from the extrusion gun due to the strong extrusion force of the extrusion gun, unlike in the conventional case. It can be prevented. Moreover, the sealant can be prevented from leaking from the press-contact area due to the strong press-contact force generated each time a push-out force is applied by the press plate between the front part of the cartridge container and the abutting member of the nozzle. Note that the push plate is configured so that it will not return backwards due to the brake plate unless the rod is pulled back, so the nozzle abutting member and the front of the cartridge container are always in pressure contact and the sealant will not leak during operation. do not.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; Fig. 1 is a longitudinal sectional view of an extrusion gun, and Fig. 2 is a nozzle C, an extrusion gun A, and a cartridge container B, which are the main parts of the invention.
FIG. 3 is a partial sectional view of a nozzle C, an extrusion gun A, and a cartridge container B according to a different embodiment from FIG. A...Extrusion gun, B...Cartridge container, C
... Nozzle, 1 ... Extrusion gun main body, 2 ... Container holding stand, 6 ... Rod, 13 ... Push plate, 15 ...
Sliding plate, 19...Fixed holding plate.

Claims (1)

[Claims for Utility Model Registration] An extrusion gun having a moving rod having a push plate at its tip, and a fixed holding plate placed in front of the holding table of the extrusion gun and the push plate of the extrusion gun. A combination of a cartridge container configured to discharge the sealing material in the container from a nozzle as the pushing plate moves forward, the nozzle comprising a discharge member for discharging the sealant and a contact member for press-contacting the tip of the cartridge container. and each of these members is removably fixed to each other via the fixed holding plate, and a cartridge container configured to discharge the sealing material is removably mounted between the pusher plate and the abutting member. The extrusion gun mounting structure for a cartridge container is such that the sealing material is discharged from the nozzle while the front part of the cartridge container and the nozzle are in pressure contact with each other as the push plate moves forward.