JPS601222B2 - Cartridge extrusion tool - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a cartridge extruder for extruding adhesives, coating agents, chemical solutions, etc. filled and sealed in a cartridge.

[Prior Art] Adhesives and the like are often filled in tubes, and when used, they are squeezed out with fingers.

If you use this tube, it is difficult to get all the filling out, and if you leave it without the cap after use,
Due to internal pressure, temperature changes, etc., it overflows and sticks to the vicinity of the outlet and hardens, making it difficult to remove the cap the next time it is used or having difficulty pushing out the filling. In addition, because the tube is filled in a large amount for economical reasons, it has many disadvantages, such as not being able to use it all at once and not being able to extrude it in fixed quantities. [Object of the Invention] Therefore, the present inventor filled a cartridge with an adhesive, etc.
We have developed a method of loading this into an extrusion tool and extruding it, and the present invention can reliably extrude all the filling, and the filling will not overflow even if left unused after use. It is possible to produce a fixed amount without any trouble, and what's more.

- The purpose of this invention is to provide an extrusion device that not only reduces costs but also enables mixed dispensing of several drugs.
[Structure of the Invention] The first aspect of the present invention is a cartridge extrusion tool that is composed of a container and an ejecting tube, and has a protrusion on the bottom surface of the container and a bulge near the base of the ejecting tube. , consists of a cartridge storage section, a piston insertion tube, and a piston.
The cartridge storage part is provided with a protrusion for accommodating the base of the outlet pipe, a recess is formed on the inner wall thereof, and a vertical groove is formed on the front end surface of the piston for locking the protrusion. The second invention is a cartridge extrusion tool according to the first invention, which is made by connecting a plurality of extrusion tools according to the first invention in parallel, and the drawings show preferred embodiments thereof.

First, to explain the first invention shown in FIG.
It is arranged to be shown in half. Reference numeral 2 designates a protrusion formed in the cartridge storage portion 1, in which a recess 3 serving as a cartridge locking means is provided.

As will be described later, the cartridge is locked by the bulging part of the cartridge hitting there. 4 is a finger rest.

Reference numeral 5 denotes a piston insertion cylinder provided continuously in the cartridge housing part 1, and has a smaller diameter than the cartridge housing part 1.

A piston 6 is slidably inserted into the piston insertion cylinder 5.

A vertical groove 7 is provided on the front end surface of the piston 6 as a means for engaging with the bottom surface of the cartridge. The above-mentioned cartridge storage section 1, piston insertion tube 5, and piston 6 are usually made of plastic. Reference numeral 9 denotes a cart IJ jig to be loaded into the extrusion tool according to the present invention, and near the base of the spouting tube 11 extending from the container 10, there is a bulge 12 that competes with the recess 3 of the extrusion tool.
has been formed.

Furthermore, a projection 13 is formed on the bottom surface of the cartridge 9 to engage with the vertical groove 71. The protrusion i3 has a spherical shape, a disk shape, or other shape that also catches the green side 8 of the vertical groove 7. Various variations of the cartridge 9 are possible. For example, the tip may be made into a spatula shape for wide application (Fig. 3B), the tip may be made into a spherical shape for injection of jelly-like contraceptives (see Fig. 4), or the tip may be made to be sprayable. Alternatively, the tip of the spouting tube 11 may be bent (FIG. 3C). Furthermore, in order to insert the spout tube 11 into a narrow and winding place, the spout tube 11 is molded to be longer and has sufficient flexibility. Conversely, it is also conceivable to mold the spouting tube 11 from hard plastic so that the spouting tube 11 is curved. It is also possible to make the spout pipe 11' replaceable from the middle (FIG. 4). In this case, prepare various replacement attachments and replace them as appropriate depending on the place of use and purpose. Attachments can be attached and detached using the drumming method, screwing method, etc. Also, replace the spout pipe 18 halfway through. Instead, it is also possible to prepare an attachment 14 with only the tip and attach it to the tip of the spouting tube 11 as needed (Fig. 5).The container 1G may also be bellows-shaped. Instead of dividing the cartridge accommodating part 1 as in the example, it is also possible to insert the power cartridge 9 with the piston insertion tube 5 removed. In order to fix the cartridge 9, for example, a method is adopted in which the cartridge 9 is screwed and fixed by turning it half a turn.Also, the cartridge storage part 1 is made double and there is an opening for inserting the cartridge into each part. Established a department,
Alternatively, the inner cylinder may be twisted relative to the outer cylinder to align both openings, and the cartridge may be inserted and loaded from there. Next, to explain the second invention shown in Fig. 6, ``This invention is a combination of a plurality of the first inventions (two lotuses are shown in the figure), and the same numbers as in Fig. 6 refer to them. This shows a similar configuration.

The one shown is for simultaneous extrusion of two components, and is integrated with a piston 6. If it is necessary to extrude each cartridge separately, use a piston in which the pistons 6 are not connected. The piston 6 may be connected via a removable connecting member.'5 is a two-lot cartridge to be loaded into a pusher container according to the second invention, and the tips may be connected. In order to lock and fix the cartridge amount 5 to the extrusion container, it is also possible to use the connecting portion 16 instead of forming a bulge in the spouting tube.In other words, a protrusion is provided on the extrusion container and the connection is made there. 16. It goes without saying that the other example of the cartridge loading method described for the first invention can also be applied to the second invention. To explain an embodiment, in the first invention, when in use, the cartridge storage part 1 is opened, the cartridge 9 is iron-fitted, the bulge part 12 is iron-fitted to the recessed part 3, and the protrusion 2 is iron-fitted.
is engaged with the vertical groove 4 on the front end surface of the piston 9.

Then, the cartridge storage part 1 is closed, the user holds the finger hook 4 by placing the index finger and the middle finger, and the tip of the ejaculation tube 11 is applied to the area to be ejected, and the piston 6 is pressed with the thumb.
Then, the cartridge 9 is pressed from its bottom surface, and as shown in FIG.
When 0 is made into a bellows shape, it folds and shrinks. ) Along with this, the filling is gradually extruded. The shape of the pouring pipe 11 is appropriately selected according to the purpose, place of use, etc. After use, by pulling back the piston 6 slightly, the bottom surface of the cartridge that is engaged with the piston 6 is also pulled back, and the filling in the spouting tube 11 flows back due to the negative pressure inside the cartridge. As a result, the filling material remains in the spouting pipe 11 and does not harden and become clogged, or overflow due to changes in internal pressure or temperature. When the piston 6 is pulled back, the bulge 1
2 fits into the recess 3, the entire cartridge 9 is not pulled and moved, and only the bottom surface of the cartridge 9 is reliably pulled back. In the case of the second invention shown in FIG. 7, two drugs are extruded simultaneously by pushing the connected pistons 6. When the tips of the outlet pipes 11 are connected,
It will be poured after being mixed. Other effects are
The same applies to the description of the first invention. [Effects of the Invention] Since the present invention is as described above, it is possible to extrude the filling material reliably, and also to dispense a fixed amount, and after use, the filling material in the dispensing tube can be returned to the container. This prevents the inside of the spouting pipe from clogging and from overflowing due to internal pressure, etc., and has the effect of being simple in structure and being able to be supplied at low cost.

And since it can be used repeatedly, it can be used at a lower cost than the conventional tube method or moth pack method.
It's not wasted. Furthermore, it is an extremely useful invention that allows simultaneous dispensing of several drugs and dispensing after mixing.

[Brief explanation of the drawing]

Figure 1 is a configuration diagram of a preferred embodiment of the first invention, Figure 2 is a diagram showing an example of the configuration of the front end surface of the piston, and Figures 3A, B, and C.
, FIG. 4 and FIG. 5 are diagrams showing different cartridges to be loaded into the extrusion container according to the first invention, FIG. 6 is a diagram showing the depression state of the bottom of the cartridge, and FIG. 7 is a diagram showing the state of depression of the bottom of the cartridge. A block diagram of a preferred embodiment, FIG. 8 is a diagram showing an example of a cartridge loaded therein. Explanation of symbols: 1... Cartridge storage part, 2... Projection, 3... Recess, 4... Thumbball, 5... Piston insertion tube 6... Piston, 7... Vertical groove.

Claims (1)

[Scope of Claims] 1. A cartridge extrusion tool consisting of a container and a spouting tube, which has a protrusion on the bottom surface of the container and a bulge near the base of the spouting tube, which has a cartridge housing and a spouting tube. It is composed of a piston insertion cylinder and a piston, and the cartridge storage part is provided with a protrusion for accommodating the base of the spouting pipe, a recess is formed in the inner wall of the protrusion, and the protrusion is locked on the front end surface of the piston. A cartridge extrusion tool characterized by having a longitudinal groove formed therein. 2. A cartridge extrusion tool consisting of a container and a spouting tube, with a protrusion on the bottom of the container and a bulge near the base of the spouting tube, which consists of a cartridge storage section, a piston insertion tube, and a piston. The cartridge storage part is provided with a protrusion for accommodating the base of the spouting pipe, a recess is formed on the inner wall of the protrusion, and a vertical groove for locking the protrusion is formed on the front end surface of the piston. A cartridge extrusion tool comprising a plurality of cartridge extrusion tools arranged in parallel. 3. A cartridge extrusion tool according to claim 2, wherein the ends of each piston are joined together.