JPH10137654A - Apparatus for emitting tacky adhesive material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily produce a film pack type tacky adhesive material cartridge mounted within a cylinder by a simple constitution. SOLUTION: A film pack type tacky adhesive material cartridge 40 is housed in a cylinder 10 and the tacky adhesive material in a tacky adhesive material cartridge 40 is emitted from the emitting element 20 attached to the leading end part of the cylinder 10 by the piston 32a sliding within the cylinder 10. The emitting element 20 has the nozzle part 23 protruding to the outside of the cylinder 10 from the end surface part 22 covering the leading end surface of the cylinder 10 and the cylindrical cut part 24 protruding toward the interior of the cylinder 10 in a concentric state is provided in the nozzle part 23. When the emitting element 20 is attached to the cylinder 10, the cut part 24 breaks the cartridge 40 in the cylinder 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a discharge device used for applying a sticky material such as a sealing material or an adhesive, which is a high-viscosity, high-tack material, to a predetermined portion.

[0002]

2. Description of the Related Art Generally, an adhesive such as a sealing material or an adhesive, which is a high-viscosity, high-adhesive material, is applied to a predetermined portion by an adhesive discharging device. In such an adhesive discharge device, a piston is slidably disposed in a cylinder that stores the adhesive, and the adhesive filled in the cylinder is pushed out by the piston.

Recently, in order to facilitate filling of the cylinder with the adhesive, a method has been adopted in which the adhesive is accommodated in a cartridge container and the cartridge container is mounted in the cylinder. Conventionally, such an adhesive cartridge container is not economical because it is conventionally made of paper, hard plastic, or the like, and its shape is maintained even after the contained adhesive is used. In addition, there is a problem that it is bulky when treated as waste material. In addition, since metal materials such as rings and plungers are also used in the cartridge container, it is necessary to separate the metal materials in order to dispose them.

For such a cartridge container, a film pack type adhesive cartridge in which an adhesive is filled in a plastic film bag has been adopted. In such a film pack type adhesive cartridge, a part of the film pack type adhesive cartridge must be broken by a cutter or the like when the cartridge is set in the cylinder of the discharge device. However, it is not easy to mount the film pack type adhesive cartridge in the cylinder after the film pack type adhesive cartridge is broken by a cutter or the like, and there is a problem in workability. In addition, when a part of the film-pack type adhesive cartridge is broken by a cutter or the like, there is a problem that the adhesive scatters around and contaminates work clothes or adheres to a cylinder of the discharge device.

In order to solve such a problem, Japanese Patent Application Laid-Open No. Hei 4-253671 discloses that a nozzle detachable from a cylinder is provided with a contact member inserted into the cylinder and a nozzle provided outside the cylinder. It is configured separately from the protruding discharge body, and the contact body located in the cylinder is provided with a cylindrical protrusion protruding inside the cylinder, and by this protrusion, the film pack type mounted in the cylinder A discharge device for breaking a part of the adhesive material cartridge is disclosed.

[0006]

In the discharge device having such a structure, the entire nozzle is mounted on the cylinder by inserting the abutting body of the nozzle into the cylinder, and is disposed in the cylinder. There is a problem that the capacity in the cylinder is reduced due to the abutted member. Moreover,
There is a problem that it is necessary to provide a projection on the contact body, the number of parts is large, and the configuration of the nozzle is complicated, so that it cannot be easily manufactured.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and an object of the present invention is to easily break a part of a film-pack type adhesive cartridge, and to have a simple structure and easy to use. An object of the present invention is to provide a pressure-sensitive adhesive discharge device that can be manufactured.

[0008]

According to the present invention, there is provided a pressure-sensitive adhesive discharging apparatus in which a film-pack type pressure-sensitive adhesive cartridge is accommodated in a cylinder, and the pressure-sensitive adhesive in the pressure-sensitive adhesive cartridge is moved by a piston which slides in the cylinder. A discharge device for an adhesive material that is adapted to be discharged from a discharge body attached to a tip end portion of a cylinder, wherein the discharge body has an end surface portion that covers a front end surface of the cylinder, and an outside surface of the cylinder from the end surface portion. And a cylindrical cut portion projecting concentrically with respect to the nozzle portion in the cylinder direction.

Further, in the adhesive discharging device, a film pack type adhesive cartridge is accommodated in a cylinder,
A pressure-sensitive adhesive discharge device in which a pressure-sensitive adhesive in a pressure-sensitive adhesive cartridge is discharged from a discharge body attached to a tip end portion of the cylinder by a piston that slides in a cylinder, wherein the discharge body includes a cylinder. Has a support portion attached so as to cover the front end surface thereof, and a cylindrical nozzle portion which detachably penetrates the support portion, and the nozzle portion penetrates the support portion. When mounted in such a manner, a cylindrical cut portion provided concentrically with the nozzle portion is provided at an end located in the cylinder so as to protrude into the cylinder.

[0010]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a longitudinal sectional view showing an example of an embodiment of the pressure-sensitive adhesive discharging apparatus of the present invention. This pressure-sensitive adhesive discharge device is a film-pack type pressure-sensitive adhesive cartridge 40 in which a high-viscosity, high-viscosity sealing material, an adhesive or the like is sealed.
And a cylindrical cylinder 10 in which the cylinder 1 is accommodated.
0 and the cylinder 1 attached to the tip of the cylinder 1
0 push-out mechanism 30 attached to the base end
And

The pushing mechanism 30 includes a support 31 attached to the upper end of the cylinder 10 opposite to the lower end to which the discharge body 20 is attached, and a piston rod 32 which is inserted concentrically through the cylinder 10. Have.

The support 31 is supported by a lid 11 fitted to the upper end of the cylinder 10, and a grip portion 31 a having a tip extending toward the side of the cylinder 10 is provided above the support 31. Have been.

The piston rod 32 is slidably disposed along the axis of the cylinder 10 and has a support 31.
And extends to the outside of the cylinder 10. At the lower end of the piston rod 32 located inside the cylinder 10, a disk-shaped piston 32a that slides in the cylinder 10 together with the piston rod 32 is attached.

The support 31 has a tip 31
A portion near the base end of the lever 33 extending in the same direction as a is rotatably attached by a pin 34.
A piston rod 32 extending from the cylinder 10 is inserted through a base end of the lever 33. A push plate 36 urged upward by a compression spring 35 is pressed against the base end of the lever 33. The proximal end of the lever 33 is urged upward by a compression spring 35, and
The tip of the lever 33 is in a state of being urged downward. When the distal end of the lever 33 is rotated upward against the urging force of the compression spring 35, the proximal end of the lever 33 moves the pushing plate 36 downward in an inclined state against the urging force of the compression spring 35. Press Thereby, the piston rod 32
Is slid downward, and the piston 32a attached to the tip of the piston rod 32 is slid in the same direction.

The lever 33 with the piston rod 32 slid downward returns to a state in which the distal end is rotated downward by the compression spring 35 with the piston rod 32 slid downward. Thereafter, by rotating the upper end of the lever 33 upward, the piston rod 32 is sequentially slid downward by a predetermined length.

A support table 38 is provided on the support 31, and a brake plate 37 is supported on the support table 38 so as to be slidable in the vertical direction. The piston rod 32 having the support 31 inserted therein is in a state where the brake plate 37 is inserted, and the brake plate 37 can slide in the vertical direction similarly to the piston rod 32. The brake plate 37 is urged upward by a compression spring 39.
When the piston rod 32 is slid downward, the braking plate 37 is in an inclined state,
When the brake plate 37 is pressed downward against the urging force of the compression spring 39 so as to cancel the inclined state, the braking of the piston rod 32 is released, and the piston is released. The rod 32 is ready to slide upward.

The discharge body 20 attached to the distal end of the cylinder 10 has a cylindrical support 21 which is supported in a fitted state at the distal end of the cylinder 10, and a taper that gradually tapers downward from the support 21. An end surface portion 22 protruding downward so as to have a funnel shape, and a cylindrical nozzle portion 23 extending concentrically below the end surface portion 22 are provided. The end face part 22 and the nozzle part 23 are integrally formed. The end face portion 22 is in a state where the lower end face of the cylinder 10 is closed.

Three steps 12 extending in the circumferential direction are provided on the outer peripheral surface of the tip of the cylinder 10. Each step 12 is spaced from an adjacent step 12 at an appropriate interval, and the length of each step 12 in the vertical direction is gradually increased toward one side in the circumferential direction. . On the inner peripheral surface of the support portion 21 of the discharge body 20, three inwardly protruding portions 21a are arranged at equal intervals in the circumferential direction. Each protrusion 21a
Is locked between the adjacent step portions 12 and is slid in the circumferential direction so as to be locked to the upper edge of each step portion 12. The discharge body 20 is fixedly attached to the cylinder 10 by the state in which each convex portion 21a is locked to each step portion 12.

The nozzle portion 23 is formed in three stages of an upper stage 23a, a middle stage 23b, and a lower stage 23c, whose diameters are sequentially reduced. The axial length of the intermediate stage 23b is
a and the lower stage 23c.

In the upper stage 23a of the nozzle portion 23, the cylinder 1 is moved from the end face portion 22 so as to be located inside the cylinder 10.
A cylindrical cut portion 24 that protrudes upward along the 0 axis direction is provided. The cut portion 24 is concentric with the nozzle portion 23 and is integrally formed with the end face portion 22 and the nozzle portion 23. The upper edge of the cut portion 24 is in a sharpened state in which the outer peripheral surface of the upper end portion is inclined inward toward the inner periphery as it goes upward.

In the discharge device having such a configuration, the discharge body 20 is rotated with respect to the cylinder 10 while the piston rod 32 of the pushing mechanism 30 is positioned above the cylinder 10, and Removed. In such a state, the film pack type adhesive cartridge 40 is inserted into the cylinder 10. And the discharge body 2
0 is fitted to the tip of the cylinder 10 and is rotated in a predetermined circumferential direction, and each convex portion 21 a provided on the inner circumferential surface of the support portion 21 of the discharge body 20 is brought into contact with the outer circumferential surface of the cylinder 10. The discharge body 20 is attached to the cylinder 10 in a state of being engaged with the upper edge of each of the provided steps 12.

In this way, the discharge body 20 is
0, the cut portion 24 protruding upward from the end face portion 22 in the discharge body 20
Is inserted into the lower end portion of the film pack type adhesive cartridge 40 inside the cartridge, and the adhesive cartridge 40 is broken. Thereafter, by rotating the tip of the lever 33 of the pushing mechanism 30 upward and sliding the piston rod 32 downward, the piston 32a
The film pack type adhesive cartridge 40 is pressed.
As a result, the adhesive contained in the adhesive cartridge 40 is discharged from the nozzle 23 through the cut portion 24 of the discharge body 20.

Thereafter, by rotating the lever 33, the adhesive is discharged from the nozzle portion 23 of the discharge body 20.

By sliding the piston rod 32,
When the piston 32a comes close to the end surface 22 of the discharge body 20, almost all of the adhesive in the adhesive cartridge 40 housed in the cylinder 10 is discharged. In such a state, the piston rod 32
Brake plate 37 that regulates not to slide upward
Of the piston rod 3 by the brake plate 37
Release the braking state of 2. Thereby, the slide rod 32 is in a state where it can slide upward, and the slide rod 32 is pulled upward to slide. Then, the film pack type adhesive cartridge 4 in the cylinder 10
0 is exchanged.

As described above, the film pack type adhesive cartridge 40 is inserted into the cylinder 10 and
In the state in which the adhesive is attached to the cylinder 10, simply sliding the piston rod 32 breaks the film-pack-type adhesive cartridge 40, and the adhesive in the adhesive cartridge is discharged from the nozzle portion 23. No special work is required to break the film pack type adhesive material cartridge 40, and there is no possibility that the adhesive material will scatter around or adhere to the inside of the cylinder 10. In addition, since the film pack type adhesive cartridge 40 has a simple structure integrated with the nozzle portion 23 of the discharge body 20, it can be easily manufactured.

The cut portion 24 provided on the discharge body 20
It does not necessarily need to project in a cylindrical shape, and it is sufficient if the structure is such that a force is evenly applied when pressed against the film pack type adhesive cartridge 40. For example, the cut portion 24 is preferably in a state in which a part of a cylindrical peripheral surface is cut out along the axial direction, and is at least a cylindrical shape having a central angle of 180 degrees or more and an arc-shaped cross section. More preferred. If the central angle of the arcuate cross section of the cut portion 24 is 180 degrees or less, the break area of the lower end portion of the film-pack type adhesive cartridge 40 is small, and the ejection property of the adhesive is deteriorated. Further, when the cross section of the cut portion 24 has a perfect circular shape, the film is cut into a circular shape when pressed against the film-pack-type adhesive material cartridge 40, and the cut portion is formed together with the adhesive material. There is a possibility that the nozzle 23 is clogged by being discharged into the nozzle 23.

If the inner diameter of the cut portion 24 is too small, the resistance at the time of discharging the adhesive in the adhesive cartridge 40 increases, and if it is too large, the adhesive may adhere to the cylinder 10. The inner diameter of the cut portion 24 is
What is necessary is just to determine according to the inside diameter of the nozzle part 23, However, Usually, it is about 5-30 mm.

If the amount of projection of the cut portion 24 from the end face portion 22 is too short, the film pack type adhesive cartridge 40 cannot be reliably broken. Conversely,
If the protruding amount of the cut portion 24 is too long, the piston 32a in the cylinder 10 contacts the cut portion 24,
All of the adhesive in the cylinder 10 cannot be reliably discharged, and the remaining amount of the adhesive increases. The projecting amount of the cut portion 24 is usually about 5 to 20 mm.

The cut portion 24 is integrally formed of the same material as the discharge body 20, for example, a metal material such as stainless steel, various plastic materials, and the like.

Film Pack Type Adhesive Cartridge 4
0 is a one-pack or two-pack sealing material such as silicone, modified silicone, modified polysulfide, urethane, etc., in a bag of a film composed of various poly films, aluminum, a multilayer structure thereof, etc.
Various adhesive materials such as an adhesive are accommodated. A specific example of the film-pack type adhesive cartridge 40 is a film in which a one-component modified silicone-based sealing material is filled in a film in which CPP is laminated at 10 μm, NY is 15 μm, and CPP is 30 μm.

FIG. 2 is a longitudinal sectional view showing another embodiment of the pressure-sensitive adhesive discharging apparatus according to the present invention. In this discharge device, the discharge body 20 has a cylindrical support portion 25 that closes the lower end portion of the cylinder 10 and a cylindrical nozzle portion 26 that passes through the support portion 25 concentrically. I have.
The support portion 25 includes a cylindrical support main body portion 25a supported in a fitted state at the distal end portion of the cylinder 10, and a support main body portion 2a.
It has a funnel-shaped end face portion 25b which tapers in order from 5a to the lower side, and further has a cylindrical female screw portion 25c extending concentrically below the end face portion 25b. The support main body 25a, the end face 25b, and the female screw 25c are integrally formed. Female thread part 2
A thread groove is provided on the inner peripheral surface of 5c.

The cylindrical nozzle portion 26 has an upper portion formed as a male screw portion 26a screwed into the female screw portion 25c of the support portion 25, and a lower portion formed as a discharge portion 26b extending downward from the support portion 25. It has become. At the upper end of the nozzle portion 26, a cut portion 26c that is concentric and protrudes upward in a cylindrical shape is provided. Other configurations are shown in FIG.
Is the same as that of the discharge device shown in FIG.

In the discharge device having such a configuration, the discharge body 20 is detached from the cylinder 10 while the piston rod 32 of the pushing mechanism 30 is slid upward.
A film pack type adhesive cartridge 40 is accommodated in the cylinder 10. Then, the support portion 2 of the ejection body 20
5 with the nozzle 26 removed.
After attaching to the lower end of the
The male screw part 26a of the nozzle part 26 is screwed into c. Thereby, the cut portion 2 provided at the upper end of the nozzle portion 26
6c is inserted into the lower end of the film pack type adhesive cartridge 40 in the cylinder 10, and the lower end of the adhesive cartridge 40 is broken.

Thereafter, by rotating the lever 33 of the push-out mechanism 30 downward and sliding the piston 32a downward, the film-pack-type adhesive cartridge 40 is pressed and accommodated in the adhesive cartridge 40. The adhesive material is discharged from the discharge part 26b through the inside of the cut part 26c of the nozzle part 26.

[0036]

As described above, according to the discharge device of the present invention, the end of the discharge body attached to the cylinder that covers the distal end surface of the cylinder protrudes in the cylinder direction concentrically with the nozzle that protrudes outside the cylinder. Since the cut portion is provided, the cut portion easily and reliably breaks the film-pack-type adhesive cartridge accommodated in the cylinder. Moreover, since the cut portion is configured to be integrally attached to the end face of the discharge body, it has a simple configuration and can be easily manufactured.

Further, since the nozzle portion is formed separately from the support portion constituting the discharge body, the film pack type adhesive cartridge in the cylinder can be easily mounted by attaching the nozzle portion to the support portion. To be broken. Also in this case, the configuration is simple and the manufacture is easy.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing an example of an embodiment of a pressure-sensitive adhesive discharge device of the present invention.

FIG. 2 is a longitudinal sectional view showing another example of the embodiment of the pressure-sensitive adhesive discharge device of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Cylinder 11 Lid 12 Stepped part 20 Discharge body 21 Support part 21a Convex part 22 End surface part 23 Nozzle part 24 Cut part 25 Support part 25a Support main body part 25b End surface part 25c Female screw part 26 Nozzle part 26a Male screw part 26b Discharge part 26c Cut Part 30 Extrusion mechanism 31 Support 32 Piston rod 32a Piston 33 Lever

Claims (2)

[Claims] 1. An adhesive cartridge of a film pack type is housed in a cylinder, and an adhesive in the adhesive cartridge is moved by a piston sliding in the cylinder.
A pressure-sensitive adhesive discharge device that is adapted to be discharged from a discharge body attached to a tip of a cylinder, wherein the discharge body has an end surface that covers a front end surface of the cylinder, and an end surface that covers the end surface of the cylinder. A pressure-sensitive-adhesive-discharging device, comprising: a protruding nozzle portion; and a cylindrical cut portion protruding in a cylinder direction concentrically with the nozzle portion. 2. A film pack type adhesive cartridge is accommodated in a cylinder, and the adhesive in the adhesive cartridge is moved by a piston sliding in the cylinder.
A discharge device of an adhesive material that is to be discharged from a discharge body attached to a tip of a cylinder, wherein the discharge body has a support unit attached to a tip of a cylinder so as to cover the tip surface. Has a cylindrical nozzle portion that detachably penetrates this support portion, and the nozzle portion has an end located in the cylinder when mounted so as to penetrate the support portion, A pressure-sensitive-adhesive-discharging device, comprising a cylindrical cut portion provided concentrically with a nozzle portion so as to protrude into a cylinder.