JPH0356794B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a thickening agent extruder for extruding thickening agents such as caulking materials and sealants for waterproofing and joint treatment from a nozzle.

[Background Art] Fig. 1 shows a conventional example. This is to push out a plunger 12 provided in a cartridge 10 containing a thickening agent with the tip of a pressing rod 3 that moves forward by operating a lever 16, thereby pushing out the thickening agent from a nozzle 11. In this case, in order to move the press bar 3 backward by manually pulling the press bar 3, the press bar 3 protrudes significantly rearward, and the amount of rearward protrusion of the press bar 3 is Therefore, the remaining amount of thickening agent in the cartridge 10 can be determined.

By the way, the push rod 3 protruding rearward like this is something that gets in the way of work, and from this point of view it is preferable that all the push rods 3 are housed within the housing 1. In this case, it becomes impossible to judge the remaining amount of thickening agent in the cartridge 10 using the press rod 3.

In particular, as the pressing rod 3, for example,
A multi-stage rack consisting of a plurality of rack bodies and a connecting member as shown in Japanese Patent No. 8253, that is, a plurality of rack bodies that are located at overlapping positions in the extrusion direction and are sequentially fed out and extended by meshing with a pinion in a drive mechanism. and a connecting member that connects the rack bodies in the extended state, each rack body constituting the press rod 3 is fed out in sequence, so that a part of the press rod 3 can be seen from the outside. Even if this is done, it will be difficult to check the remaining amount of thickening agent.

[Object of the Invention] The present invention has been made in view of the above points, and the object thereof is that the press rod is housed in the housing so that it does not interfere with the work, and that the viscosity agent An object of the present invention is to provide a thickener extruder that can also determine the remaining amount of thickener.

[Disclosure of the Invention] The present invention includes a press rod that pushes out a thickener from a cylindrical housing filled with a thickener such as a caulking agent or a sealant, and a push rod that moves the push rod in the direction of extruding the thickener. The thickening agent extruder is equipped with a drive mechanism housed in a housing and a display section for displaying the moving distance of the press rods, wherein the press rods are located at overlapping positions in the extrusion direction. and a plurality of rack bodies that are sequentially sent out and extended by meshing with a pinion in the drive mechanism;
It is composed of a multi-stage rack consisting of a connecting member that connects the rack bodies in an extended state, and the display part is rotationally driven by the drive mechanism of the press rod, and the display part is rotated by the drive mechanism of the press rod, and the display part is rotated by the drive mechanism of the press rod. It is characterized by being formed by a display board that rotates within one rotation and a display window that allows a part of the display formed on this display board to be seen outside, and the press rod is sent out sequentially. By forming a multi-stage rack consisting of multiple rack bodies, the overall length is shortened and the rack is housed inside the main body, increasing workability and making it easier to check the remaining amount of thickening agent, which is a problem in this case. This difficulty can be compensated for by displaying it on a display board.

The extruder will be described in detail below based on an example. As shown in FIG. The cartridge 10, which serves as a cylindrical storage part in which the thickening agent is stored from the front opening of the holder 2, is placed in a third position.
Insert the front opening into the holder 2 as shown in the figure.
The cartridge 10 is loaded by closing it with a cover 18 pivotally attached to the cartridge.

A push-out mechanism block is housed within the housing 1. This extrusion mechanism block includes a motor 7 as a power source, a deceleration device that decelerates the output of the motor 7, a pinion 8 that is driven by the deceleration output, and a press plate 1 at the front end.
4 and a gear box 9 that guides the sliding movement of the press rod 3 and houses the reduction gear, the pinion 8, etc.

The motor 7 is connected to a battery power pack 19 placed inside the grip 17 and a switch 21 driven by a lever 20 placed on the front side of the grip 17. 22 switch lever.

The cartridge 1 loaded in the holder 2 is pushed forward by the push rod 3, which is moved in the front and back direction by the pinion 8 driven by the deceleration rotational output of the motor 7.
0 plunger 12 is pressed and the thickening agent is extruded through the nozzle 11.

Note that the pressing rod 3 here is the first rack body 3.
1 and the second rack body 32, and a connecting member (not shown) that mutually connects both the rack bodies 31 and 32, which extend by being sequentially fed out through engagement with the pinion 8, in the extended state. , when the first rack body 31 in a position overlapping with the second rack body 32 is drawn out by meshing with the pinion 8, the second rack body 32 is connected to the first rack body 31 by the connecting member, and then , the second rack body 32 is pulled by the first rack body 31.
If it reaches the meshing position with the pinion 8, the second
The first rack body 32 is connected by a connecting member.
The rack body 31 of the rack body 31 is pushed to move it forward. By making the press rod 3 have a multi-stage rack structure that extends in this way, the press plate 14 at the tip of the press rod 3
At the same time, when the press rod 3 is retracted, the first rack body 31 and the second rack body 32 overlap, so the overall length is short, and therefore the press rod 3 is housed in the housing 1 as a whole, the overall length is kept short.

Next, the speed reduction device described above will be explained. This speed reducer is attached to the plunger 12 of the cartridge 10.
1/1 to be able to apply pressure of 100Kg or more.
It has a reduction ratio of 1000 to 1/1500, and uses a four-stage planetary mechanism to reduce the speed. In the figure, 50 is a sun gear, 51 is a planetary gear, 52 is an internal gear, and 53 is a planetary carrier.The second and subsequent sun gears 50 are formed to rotate together with the preceding planetary carrier 53. The pinion 8 is fixed to a planetary carrier 53 of the final stage planetary mechanism. Also, the speed reduction device here is
By arranging the front two stages and the rear two stages in parallel, the motor 7, which is a heavy object, can be placed above the press rod 3, which is a position where the weight can be balanced. A pair of spur gears 54, 54 connects the second stage and the third stage.

The display section is a display window 4 formed on the upper side of the main body 1.
and a display board 5 located at the back of the display window 4. The display plate 5 is a bearing plate 57 provided on the gearbox 9 as shown in FIGS. 6 to 8.
The gear 56 is rotatably supported by a pin 58 fixed to the pin 58, and has teeth formed on its outer circumferential surface. They mesh together. Therefore,
As the pinion 8 rotates and advances the press rod 3, the display plate 5 also rotates. However, the reduction ratio between the display plate 5 and the gear 56 is determined so that the rotation of the display plate 5 is within one revolution for the entire stroke of the press rod 3.

However, a display 6 as shown in FIG. 8 is provided on the front surface of the display board 5 of the lever, and the display board 5, which rotates as the push rod 3 advances, displays the display 6 visible from the display window 4 from FIG. As shown in Figure b, or from Figure b to Figure A, if the push rod 3 is moved back after pushing out the entire amount of thickening agent in the cartridge 10, the display window 4
The display 6 seen from above changes in the opposite way to the above case and returns to the original state.

[Effects of the Invention] As described above, in the present invention, since the press rod housed in the housing is formed of a plurality of rack bodies that are sequentially fed out and extended, the press rod has a short stroke compared to its entire stroke. It can be shortened, which makes it easy to store the press rod in the housing, and the press rod does not protrude far backwards, so it does not get in the way of work. In addition, since the press rod is housed in the housing, and the racks that make up the press rod are fed out in sequence, it is difficult to make the viscous agent visible by simply making a part of the press rod visible from the outside. The difficulty in checking the remaining amount of fuel can be compensated for by displaying it on a display board, which does not cause any problems in checking.Moreover, this display board is rotationally driven by the drive mechanism of the push rod. This displays the moving distance of the pressing rod, and it is sufficient to check the moving distance of the pressing rod, that is, the remaining amount of thickening agent, simply by looking at the display board.

[Brief explanation of drawings]

Fig. 1 is a front view of the conventional example, Fig. 2 is a perspective view of an embodiment of the present invention, Fig. 3 is a perspective view of the holder of the above, Fig. 4 is a longitudinal sectional view of the same, and Fig. 5 is a longitudinal sectional view of the same. 6 is a vertical sectional view of the main part of the same as the above, FIG. 7 is a partial cross sectional view of the same as the above, FIG. 8 is an exploded perspective view of the same as the above, and FIGS. In the figure, 1 is a housing, 2 is a holder, 3 is a push rod, 4 is a display window, and 5 is a display board.

Claims (1)

[Claims] 1. A press rod that pushes out a thickener from a cylindrical housing filled with a thickener such as a caulking agent or a sealant, and a drive mechanism that moves this push rod in the direction of extruding the thickener are installed in the housing. A thickening agent extruder is provided with a display section that displays the moving distance of the press rod, and the press rod is located at an overlapping position in the extrusion direction and is engaged with a pinion in the drive mechanism. The rack is composed of a multi-stage rack consisting of a plurality of rack bodies that are sequentially fed out and extended by the rack, and a connecting member that connects the rack bodies in the stretched state. It shall be formed of a display plate whose rotation is within one revolution per the entire stroke of the press rod for extruding the thickener, and a display window through which a part of the display formed on the display plate can be seen to the outside. A thickener extruder featuring: