JPH0580563U - Viscous liquid extruder - Google Patents

Abstract

(57) [Summary] [Purpose] A cartridge for one liquid and a cartridge for two liquids are mounted so that the viscous liquid agent can be pushed out accordingly. [Structure] A one-liquid cartridge 1 having a liquid chamber 1a,
Engagement portion 3a of the one-liquid cartridge 1 for selectively attaching the two-liquid cartridge 2 having the liquid chambers 2a and 2b
The device main body 5 is provided with an engaged portion 4 which can detachably engage the engaging portion 3b of the two-liquid cartridge 2. Pushing rods 6 for pushing out the viscous liquid agent in the liquid chamber are provided in parallel to each other so as to correspond to the two liquid chambers 2a and 2b of the two-liquid cartridge 2. A pair of a first pushing plate for pushing out the viscous liquid agent in the liquid chamber 1a of the one-liquid cartridge 1 and a second pushing plate for pushing out the viscous liquid agent in the liquid chambers 2a, 2b of the two-liquid cartridge 2 are provided. It is detachably attached to the push rod 6. Thus, the same device can be used to both push out the viscous liquid agent from the one-liquid cartridge 1 and push out the viscous liquid agent from the two-liquid cartridge 1.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a viscous liquid ejector used for extruding a viscous liquid from a cartridge, and more specifically, a one-liquid cartridge in which one liquid chamber is filled with a viscous liquid such as a one-liquid sealant, and two liquid chambers. The present invention relates to a viscous liquid agent extruder which can be used also as a two-liquid cartridge in which a viscous liquid agent such as a two-component adhesive agent (a main agent on one side and a curing agent on the other side) is loaded.

[0002]

[Prior Art]

 Conventionally, an extrusion device for extruding a two-component adhesive is disclosed in Japanese Utility Model Publication No. 55-122873, and an extruding device for extruding a one-component sealing agent is disclosed in Japanese Utility Model Publication No. 56-3950. However, all were dedicated to it.

[0003]

[Problems to be solved by the device]

 However, workers who use both the two-component adhesive and the one-component sealant in the field work must have two extrusion devices, which is inconvenient to carry and increases the installation cost. There was a problem that had to be. The present invention has been made in view of the above problems, and an object of the present invention is to mount a cartridge for one liquid and a cartridge for two liquids and push out a viscous liquid according to the cartridge. The purpose of the present invention is to provide a viscous liquid extruder that can be used for both.

[0004]

[Means for Solving the Problems]

 In order to achieve the above object, the viscous liquid agent extruder of the present invention selectively attaches a one-liquid cartridge 1 having one liquid chamber 1a and a two-liquid cartridge 2 having two liquid chambers 2a and 2b. For this reason, an engaged portion 4 capable of detachably engaging the engaging portion 3a of the one-liquid cartridge 1 and the engaging portion 3b of the two-liquid cartridge 2 is provided in the apparatus body 5, and the viscous liquid agent in the liquid chamber is pushed out. A pushing rod 6 for holding the two liquid chambers 2a and 2b of the two-liquid cartridge 2 is provided in parallel in a pair so as to correspond to the two liquid chambers 2a and 2b of the two-liquid cartridge 1. The plate 7a and the second pushing plate 7b for pushing out the viscous liquid agent in the liquid chambers 2a, 2b of the two-liquid cartridge 2 were detachably attached to the pair of pushing rods 6.

[0005]

[Action]

 When the one-liquid cartridge 1 loaded with one-liquid viscous liquid agent is used, the first pushing plates 7a are attached to the tips of the pair of push-out rods 6 of the apparatus main body 5, and the one-liquid cartridge 1 The engaging portion 3a is engaged with the engaged portion 4 of the apparatus main body 5 to mount the one-liquid cartridge 1, and the pushing rod 6 is driven to push out the viscous liquid agent. When the two-liquid cartridge 2 loaded with the two-liquid viscous liquid agent is used, the second pressing plate 7b is attached to the tips of the pair of extrusion rods 6 of the apparatus main body 5, and the two-liquid cartridge 2 The engaging portion 3b is engaged with the engaged portion 4 of the apparatus main body 5 to mount the two-liquid cartridge 2, and the pushing rod 6 is driven to push out the viscous liquid agent. Thus, the viscous liquid agent of the one-liquid cartridge 1 and the viscous liquid agent of the two-liquid cartridge 2 can be easily pushed out by the same device.

[0006]

【Example】

 FIG. 1 is a perspective view showing the entire viscous liquid agent extruder. A drive unit, which will be described later, is provided inside the apparatus body 5. A pair of extruding rods 6 are attached to the apparatus main body 5 so as to penetrate in parallel, and a rack 9 is provided on the pair of extruding rods 6 in the longitudinal direction. The push-out rod 6 can be driven back and forth. A grip 10 is extended downward from the apparatus main body 5, and a switch handle 11 is provided on the grip 10 so that the grip 10 can be operated by an index finger when the grip 10 is held by a hand. By doing so, the drive unit can be operated. A swing lever 12 is provided on the upper part of the grip 10 so that it can be operated by a thumb when the grip 10 is held by a hand. The swing lever 12 is stopped after the pushing operation is stopped as described later. By operating 12, the "backward drip" is released. A nozzle 13 for discharging one liquid is provided at the front end of the one-liquid cartridge 1 having one liquid chamber 1a, and an engaging portion 3a is provided at the rear end of the one-liquid cartridge 1. One liquid chamber 1a of the one-liquid cartridge 1 is loaded with a one-liquid viscous liquid such as a one-liquid sealant. A nozzle 14 for mixing and discharging the two liquids is provided at a front end of a two-liquid cartridge 2 having two liquid chambers 2a and 2b, and an engaging portion 3b is provided at a rear end of the two-liquid cartridge 2. Is provided. Each of the liquid chambers 2a and 2b of the two-liquid cartridge 2 is loaded with a two-liquid viscous liquid such as a two-liquid adhesive composed of a main agent and a curing agent. An engaged portion 4 is provided on the front surface of the apparatus main body 5, and the engaging portions 3a and 3b are detachably engaged with the engaged portion 4 so that the cartridge 1 for one liquid or the cartridge for two liquid is provided. 2 can be attached. A holder 15 is attached to the front part of the apparatus main body 5 so as to be vertically movable, and the cartridge can be held by horizontally tilting the holder 15 with the cartridge attached. Reference numeral 31 is a rechargeable dry battery that is detachably attached to the grip 10.

The main part of the drive unit in the apparatus body 5 is as shown in FIG. In FIG. 2, reference numeral 16 denotes a planetary gear speed reducer, which includes an internal gear 17, a plurality of planetary gears 18, and a sun gear 19. In this planetary gear reduction device 16, an internal gear 17 is usually locked, an output shaft of a motor is interlocked with a sun gear 19, and a cart for connecting a plurality of planetary gears 18 is connected to a pinion 20. There is. As a result, the output of the motor can be decelerated to drive the pinion 20. A pinion 20 is meshed with the rack 9 of the pair of push rods 6, so that the push rod 6 can be driven back and forth by the pinion 20.

A push plate for pushing out the viscous liquid agent in the liquid chamber of the cartridge is attached to the tip of the push rod 6. However, in order to correspond to the one-liquid cartridge 1 and the two-liquid cartridge 2, There is a push plate corresponding to it as an attachment. That is, a first pressing plate 7a that matches the cross-sectional shape of the liquid chamber 1a of the one-liquid cartridge 1 and a second pressing plate 7b that corresponds to the cross-sectional shape of the liquid chambers 2a and 2b of the two-liquid cartridge 2 are provided. I have it. When the two-liquid cartridge 2 is used, the second pressing plate 7b is detachably attached to the tips of the pair of pushing rods 6 as shown in FIG. 3A, and the one-liquid cartridge 1 is used. As shown in FIG. 3B, the first push plate 7a is detachably attached so as to extend over the tips of the pair of push rods 6. When the one-liquid cartridge 1 loaded with the one-liquid viscous liquid agent is used, the first push plates 7a are attached to the tips of the pair of push-out rods 6 of the apparatus main body 5, and the one-liquid cartridge 1 is engaged. The portion 3a is engaged with the engaged portion 4 of the apparatus main body 5 to mount the one-liquid cartridge 1, and the pushing rod 6 is driven to push out the viscous liquid agent. When the two-liquid cartridge 2 loaded with the two-liquid viscous liquid agent is used, the second pushing plate 7b is attached to the tip of the pair of push-out rods 6 of the apparatus main body 5, and the two-liquid cartridge 2 is engaged. The joint portion 3b is engaged with the engaged portion 4 of the apparatus body 5 to mount the cartridge 2 for two liquids, and the push rod 6 is driven to push out the viscous liquid agent.

Further, even when the pushing operation is stopped due to the pressure generated in the cartridge when the viscous liquid agent is pushed out, a phenomenon called “backward sag” in which the viscous liquid agent is discharged occurs, but in order to prevent this, FIG. The structure is as shown. A plurality of grooves 21 are provided in the circumferential direction on the outer peripheral surface of the internal gear 17, and a key 22 that can be inserted into and removed from the groove 21 of the internal gear 17 is arranged on the outer periphery of the internal gear 17. The key 22 is biased by a spring 23 so that the key 22 can be fitted in the groove 21. The swing lever 12 is integrally provided at one end of the rotary shaft 24, the arm 25 is integrally provided at the other end of the rotary shaft 24, and the engaging pin 26 is integrally provided at the tip of the arm 25. It is provided and the engaging pin 26 is made to correspond to the key 22. When the pressure in the cartridge increases, a load is applied to the internal gear 17 in the direction of arrow C. At this time, when the rocking lever 12 is rotated, the force amplified by the lever principle is transmitted to the key 22 via the engaging pin 26, and when this force overcomes the load C, the key 22 moves from the position A to the position A. Move to the position B and release the fixing of the internal gear 17. As a result, the internal gear 17 becomes free and idles, and the load can be quickly removed. By removing this load, it is possible to prevent "backward drip" of the viscous liquid agent. At this time, by rotating the swing lever 12, the key 22 is removed via the rotating shaft 24, the arm 25, and the engaging pin 26, so that the key 22 can be removed with a light force. In the past, the push button was pushed to remove the key 22 on the sloped surface of the push button, so the key 22 cannot be removed unless it is pushed with a strong force, which makes work extremely difficult. If the swing lever 12 can be operated in this way, the lever is used to amplify the force, which can be easily operated with a light force, and even when the grip 10 is held, it can be easily operated with the thumb.

Further, since there is no clear regulation on the size of the cartridge, the optimum stroke for pushing out is different. In order to solve this, the stroke difference was absorbed by the overload clutch, which conventionally operates when the push-out limit is reached. However, with this method, the clutch may be activated each time extrusion is completed, which imposes a burden on the clutch and the parts of the drive unit, resulting in a shortened life. In order to solve this, a stroke switching mechanism shown in FIGS. 5 and 6 is provided. A position detector 28 that is long in the longitudinal direction of the push rod 6 is provided on the side surface of the push rod 6, and detection means 29a, 29b such as microswitches that detect the position detector 28 are provided in the apparatus body 2. A slide switch 30 for selecting the detecting means 29a and 29b is provided in the apparatus body 5. M is a motor and E is a power supply. Then, when the position detecting unit 28 operates the position detecting means 29a, 29b selected by the slide switch 30, the electric circuit is cut off and the extrusion is stopped. That is, when the slide switch 30 is switched to the right side in FIG. 6, the extrusion stops when the position detecting unit 28 operates the position detecting means 29a, and when the slide switch 30 is switched to the left side, the position detecting unit 28 is detected. The pushing stops when the position detecting means 29b is operated by. By doing so, it is possible to obtain the optimum stroke according to the cartridge by switching the slide switch 30, and it is possible to prevent the life of the drive unit parts from being shortened.

7 and 8 show another embodiment. Since the stroke required for extrusion differs between the 1-liquid cartridge 1 and the 2-liquid cartridge 2, the strokes are switched by the following method. A cartridge detection switch 30a such as a micro switch is provided instead of the slide switch 30 of the above embodiment. That is, the cartridge detection switch 30a for detecting the shape of the cartridge is provided on the side of the engaged portion 4 of the apparatus body 1. In order to distinguish the engaging portions 3a and 3b of the one-liquid cartridge 1 and the two-liquid cartridge 2, the engaging portion 3a of the one-liquid cartridge 1 is provided with a recess 31 serving as a cartridge shape detecting portion. When the one-liquid cartridge 1 is mounted, the cartridge detection switch 30a is turned off and detected by the recess 31 as shown in FIG. 8A, and when the two-liquid cartridge 2 is mounted, the cartridge detection switch 30a is As shown in FIG. 8B, it is turned on and detected. This makes it possible to switch between the two circuits depending on the shape of the cartridge. As shown in FIG. 5, the push rod 6 is provided with a position detecting section 28, and position detecting means 29a and 29b like micro switches are provided inside the apparatus, and the selection of stroke switching is performed by the above cartridge detecting. The switch 30a is used. When the push-out operation is performed and the position detecting unit 28 turns on the position detecting means 29a, 29b selected by the cartridge detecting switch 30a, the electric circuit is cut off and the push-out is stopped.

[0012]

[Effect of the device]

 Since the present invention is configured as described above, when a one-liquid cartridge loaded with a one-liquid viscous liquid is used, the first push plate is attached to the tips of the pair of push rods of the apparatus main body. It is possible to engage the engaging part of the 1-liquid cartridge with the engaged part of the main body of the device, mount the 1-liquid cartridge, and drive the pushing rod to push out the viscous liquid agent. When using a two-liquid cartridge loaded with viscous liquid, attach a second push plate to the tip of a pair of extrusion rods on the main body of the device, and attach the engaging part of the cartridge for two liquids to the engaged part of the main body of the device. It is possible to mount the two-liquid cartridge by engaging with the portion and drive the push rod to push out the viscous liquid agent. Both the viscous liquid agent of the one-liquid cartridge 1 and the viscous liquid agent of the two-liquid cartridge 2 are Extrude easily with the same device Doo are those that can be, it is those that can be conveniently used to be able to eliminate the increase of inconvenience and equipment costs as in the prior art portable.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an entire embodiment of the present invention.

FIG. 2 is a perspective view showing a structure of a drive unit of the above.

3A and 3B are views for explaining the attachment of the above push plate, in which FIG. 3A is a partially cutaway perspective view showing a state where a two-liquid cartridge is attached, and FIG. 3B is a state where a one-liquid cartridge is attached. It is a partially notched perspective view.

FIG. 4 is a perspective view showing a mechanism for preventing rearward drooping in the above.

FIG. 5 is a partially cutaway front view illustrating the above stroke switching mechanism.

FIG. 6 is a circuit diagram of the same.

FIG. 7 is a partially cutaway perspective view of an engaged portion of another embodiment of the above.

8A and 8B are explanatory views showing the relationship between the cartridge, the cartridge detection switch, and the engaging portion of the above, wherein FIG. 8A is a state when a one-liquid cartridge is in use, and FIG. 8B is a two-liquid cartridge when in use. Indicates the state of.

[Explanation of symbols]

 1 Cartridge for 1 liquid 1a Liquid chamber 2 Cartridge for 2 liquid 2a Liquid chamber 2b Liquid chamber 3a Engaging portion 3b Engaging portion 4 Engaged portion 5 Device body 6 Extruding rod 7a First pushing plate 7b Second pushing plate

Claims (1)

[Scope of utility model registration request] 1. An engaging portion of a one-liquid cartridge and an engagement of a two-liquid cartridge for selectively mounting a one-liquid cartridge having one liquid chamber and a two-liquid cartridge having two liquid chambers. The device main body is provided with an engaged portion that can be detachably engaged with the device main body, and a pair of push-out rods for pushing out the viscous liquid agent of the liquid chamber are provided in parallel to correspond to the two liquid chambers of the two-liquid cartridge. A first push plate for pushing out the viscous liquid agent in the liquid chamber of the one-liquid cartridge and a second push plate for pushing out the viscous liquid agent in the liquid chamber of the two-liquid cartridge can be freely attached to and detached from a pair of push rods. A viscous liquid extruder that is attached to the.