WO1992009482A1

WO1992009482A1 - Bottle holder

Info

Publication number: WO1992009482A1
Application number: PCT/JP1991/001553
Authority: WO
Inventors: Nagahiro Kawano; Sadayoshi Kuzutani
Original assignee: Moon-Star Chemical Corporation
Priority date: 1990-11-30
Filing date: 1991-11-13
Publication date: 1992-06-11
Also published as: AU8924091A

Abstract

A bottle holder is intended to provide a bottle holder permitting coating over the entire outer surface of a bottle and enabling sure holding of the bottle regardless of the kind thereof. A bottle holder of this invention is provided with a holder proper (3), and expandable resilient holding body (23) fixed to said holder proper (3), and a chuck shaft (17) fixed to said resilient body (23) at one end thereof and disposed displaceably in the holder proper (3). The resilient body (23), when not acted on, is larger in outer diameter than the inner diameter of the mouth part of the bottle to be held, however, elongates and becomes smaller in outer diameter than the inner diameter of the mouth part when the chuck shaft (17) is moved toward this body (23). Therefore, coating over the whole of the outer surface of the bottle is made possible and sure holding of the bottle is enabled regardless of the kind of the bottle.

Description

Specification

Bottle holder

〔Technical field〕

The present invention relates to a bottle holder, and more particularly, to a bottle holder used for holding a bottle when a rubber or synthetic resin or the like is coated on an outer surface of a glass bottle or the like.

(Background technology)

2. Description of the Related Art Conventionally, various coating treatments have been applied to the outside of glass bottles having internal pressure, such as glass bottles for carbonated drinks and beer bottles, in order to prevent accidents due to breakage.

This coating treatment is performed by immersing a bottle held on a conveyor such as a chain conveyor into an immersion tank containing a predetermined coating liquid.

As a bottle holder used here, for example, an apparatus described in JP-A-48-87987 is known. The bottle holder disclosed in this publication includes a holding rod core shaft to which a cap made of an elastic body is attached, a sleeve fitted to the holding rod core shaft and having a tip portion formed in an expanded shape; Has an annular holding ring for pressing the bottle from the outer peripheral surface, and can hold the bottle by sandwiching the mouth of the bottle from both the inner and outer surfaces.

In addition to the above, a proposal for a bottle holder is made in Japanese Patent Publication No. 51-49460.

However, in any of the above bottle holders, the bottle is held from the outside of the bottle, and there is a problem that the coating on the outer upper end surface of the bottle corresponding to the holding portion cannot be performed. Also, since there are various types and sizes of bottles to be used, it is necessary to replace the equipment each time. Furthermore, since the holding force of the bottle holder is not so strong, there is a problem that the held bottle is likely to be loose or fall off.

The present invention solves these drawbacks in the conventional bottle holder, and it is possible to coat the entire outer peripheral surface of the bottle, and furthermore, regardless of the type of bottle. It is an object of the present invention to provide a bottle holder that can reliably hold the bottle.

[Disclosure of the Invention :!

In order to achieve the above object, a bottle holder of the present invention includes a holder main body, an elastic bottle holding elastic body attached to the holder main body, and one end attached to the elastic body. A chuck shaft movably disposed in the holder body, wherein the outer diameter of the elastic body is larger than the inner diameter of the mouth of the bottle to be held in a natural state, and the chuck shaft It is characterized in that when the is moved in the direction of the elastic body, the elastic body expands and becomes smaller in diameter than the inner diameter of the mouth of the bottle.

Further, a coil spring that restores the chuck shaft with the elastic body extended to the state before the extension may be provided on the holder body, or a conical top guide made of synthetic resin may be attached to the tip of the elastic body.

When the chuck shaft is advanced in the direction of the bottle to be held, the elastic body for holding the bottle is extended. This elastic body has a larger diameter than the mouth of the bottle in a natural state, but when the chuck shaft is pushed, the elastic body is stretched to have a smaller diameter and can be inserted into the mouth of the bottle. Then, when the force of the chuck shaft is released, the chuck shaft is pushed back by the restoring force of the elastic body, the outer diameter of the elastic body is restored to the original size, and the bottle is held from the inside. As described above, the bottle holder of the present invention is characterized in that the bottle is held using the restoring elastic force of the elastic body itself.

Also, by providing a coil panel for restoring the elongated chuck shaft to the holder body, even if the restoring force of the elastic body is reduced, the appropriate elastic force of the coil panel (battery constant of 0.3 to 1.0 O) can be obtained. k gZmm) to ensure the restoration state. If a synthetic resin toe guide is attached to the tip of the elastic body, the lubrication will be improved and the elastic body will be easily inserted into the bottle.

[Brief description of drawings]

FIG. 1 is a schematic view of a coating apparatus incorporating the bottle holder of the present invention, FIG. 2 is a view taken along the line BB of FIG. I, FIG. 3 is a perspective view showing a dipping process, and FIG. FIG. 5 is a perspective view showing the holding of the bottle in the example, FIG. 5 is a cross-sectional view taken along line A—A in FIG. 4, and FIG. FIG. 7 is a front view showing a state in which a bottle is attached and detached, and FIG. 8 is a sectional view showing another embodiment.

[Best Mode for Carrying Out the Invention]

FIG. 1 is a schematic front view of the entire coating apparatus incorporating the bottle holder of the present invention, 5 FIG. 2 is a view taken along the line BB of FIG. 1, and FIG. 3 is a perspective view showing a dipping process.

The coating device 50 has a movable conveyor divided into upper and lower stages. The upper stage has a drying conveyor 51 for coating and drying, and the lower stage has coating after drying. A curing conveyor 52 for curing the film is provided.

The bottles 53 to be coated are placed on a palette 55 of an automatic desorption device 504 by a device (not shown), and the pallet 55 is raised by a bottle holder 100. It is held on the drying conveyor 51 in a vertical state. The bottle 53 held by the holder 100 moves along the guide rail 56 provided in parallel with the drying conveyor 51, and moves to the right in the drawing in a substantially flat state. To reverse the traveling direction. Then, the coating is applied in the subsequent immersion tank 58.

5 As shown in Fig. 3, the immersion tank 58 contains a polymer solution such as natural rubber or synthetic resin inside, and the bottle 5 3 held in the holder 100 of the drying conveyor 51 The force is applied through the immersion tank 58 while rotating along the inclined guide rail 56. The coated bottle 53 travels further on the guide rail 56 to the center while rotating, and the drying is promoted by the hot air of the oil parner 600 ejected from the nozzle 59. 6 1 is an auxiliary drying infrared ray overnight. An immersion tank 62 is also provided on the lower side, where a second coating is applied if necessary, and the coating is dried again by hot air ejected from the nozzle 63.

The bottle 53 on which the coating film has been dried is guided while being held by the holder 100. The bottle 53 moves horizontally along the rails 56, and moves on the pallet 64 of the automatic detaching device 54. 5 Release the restraint of the guide rail 56 and move to the vertical state. In conjunction with this, the holding of the bottle 53 is released and the bottle 53 is placed on the palette 64.

The placed bottle 53 is placed on a curing conveyor 52 by a device (not shown). The coating film hardens while moving.

As shown in the perspective view of FIG. 4 and the cross-sectional view of FIG. 5, the bottle holder 100 includes a support 1, a swing shaft 2, a rotary cylinder 3 as a holder main body, and a chuck rubber 23 for holding the bottle. And so on.

The support 1 is fixed at one end to a drying conveyor 51, and has a swing shaft 2 pivotally supported by a bolt 9 via a washer 8 at the other end via a washer 8.

The swing shaft 2 is rotatably supported by bearings 1 1 and 1 1 provided on a rotary shaft 3 forming a holder body, and the swing shaft 2 comes off the rotary cylinder 3 by a retaining ring 14. Is preventing. Reference numeral 10 denotes a retaining ring for a hole, which prevents the bearings 11, 11 held at predetermined intervals by the coloring rings 12, 13 from falling off from the rotary cylinder 3.

A push rod 7 is inserted into a hole 2 a provided in the axis of the swing shaft 2, and has one end protruding from the swing shaft 2. The other end of the push rod 7 is connected to a slider 15 slidable back and forth in the rotary cylinder 3 by a spring pin 4. Therefore, the slider 15 and the push rod 7 can move in the rotary cylinder 3 in the axial direction as a unit.

The coil spring 18 is disposed between a spring washer 16 located at the front of the slider 15 and a chuck washer 19 provided at the tip of the rotary cylinder 3. The koizole spring 8 has a spring constant of 0.3 to 1.0 kg kg mm so that the chuck rubber 23 can be restored even if the restoring force of the chuck rubber 23 is reduced. Further, the spring washer 16 is connected to the chuck shaft 17 with the spring pin 5, and the chuck shaft 17 and the screw washer 16 can move in the rotating cylinder 3 in the axial direction integrally. it can. On the other hand, the chuck washer 19 is pressed and fixed by the cap 6, and the coil spring 18 expands and contracts due to the fixed chuck washer 19 and the panel washer 16 that moves in the rotating cylinder 3 in the axial direction. I do.

The cap 6 for closing the tip of the rotary cylinder 3 is provided with a circular cutout at the center for fixing the bottom of the gum rubber 23 to the chuck washer 19, and is screwed to the tip of the rotary cylinder 3. I have. The roller 21 fixed to the outer peripheral surface of the rotary cylinder 3 with a set screw 22 is made of a steel ring, and the roller 21 moves while contacting and rotating on a guide rail 56 shown in FIG. The roller 21 may be made of an elastic material such as rubber or plastic.

The chuck shaft 17 is formed by a drawn steel pipe, one end of which is connected to the panel washer 16 by a spring pin 5, and the other end protrudes from the rotary cylinder 3 to form a metal ball 20 at the tip. The metal balls 20 allow the load when the chuck rubber 23 is extended to be dispersed throughout the chuck rubber 23, and when the chuck shaft 17 is restored to its original state, the chuck and rubber 2 3 can be restored as one. An air hole 24 is provided in the axis of the chuck shaft 17 to prevent cracking and falling off due to expansion of the air inside the bottle 53 when the bottle 53 is heated and dried.

Around the chuck shaft 17, a chuck rubber 23 as an elastic body having a diameter larger than the inner diameter of the mouth of the bottle in a natural state is attached, and the bottom thereof is fixed to the chuck washer 19 by baking. It is preferable that the chuck rubber 23 be able to freely expand and contract and have high durability. For example, it can be formed of silicone rubber, natural rubber having a small compression set, or polystyrene rubber, but butyl rubber having no water repellency is particularly desirable so as not to impart water repellency to the inside of the bottle. Note that the coil panel 18 is baked and fixed to the chuck washer 19 so that the coil panel 18 is slightly compressed in its natural state so that the chuck rubber 23 can be completely restored when the force of the push rod 7 is released. . In addition, an air hole 23 a is provided at the tip of the chuck rubber 23 at a position corresponding to the tip of the air hole 24 provided at the axis of the chuck shaft 17. '

Next, with reference to FIGS. 5 and 6 (a), (b) and (c), the situation of mounting the bottle 53 using the bottle holder of the above configuration will be described.

The outer diameter of the chuck rubber 23 is larger than the inner diameter of the mouth of the bottle 53 in a natural state and cannot be inserted into the bottle 53 (FIG. 6 (a)). Then, by pushing the push rod 7 protruding from the swing shaft 2 manually or by an appropriate means such as a hydraulic cylinder, the slider 15 connected to the push rod 7 advances to the chuck rubber 23 side, and the spring washer is provided. The chuck shaft 17 fixed to 16 is pushed out, and the chuck rubber 23 'is extended. With this extension, the outer diameter of the chuck rubber 23 becomes thinner than the natural state, and the chuck rubber 23 can be inserted into the mouth of the bottle 53. The dashed line indicates the natural state of the tag rubber 23 (Fig. 6 (b)).

After the chuck rubber 23 is inserted into the mouth of the bottle 53 and the force applied to the push rod 7 is removed, the chuck rubber 23 becomes the original shape by the elastic restoring force of the coil spring 18 and the chuck rubber 23. Try to return to At that time, the chuck rubber 23 cannot be restored beyond the inner diameter of the mouth of the bottle 53, and the pressing force P of the chuck rubber 23 acts inside the mouth of the bottle 53. Then, the bottle 53 can be held from the inside by the pressing force P (FIG. 6 (c)). Therefore, even if there is a slight difference in the inner diameter of the mouth portion of the bottle 53, it is possible to reliably hold the bottle 53.

Since the swing shaft 2 of this embodiment is supported by the support 1 so that it can be bent and rotated vertically, the weight of the bottle 53 is held by the guide rubber 56 while the bottle 53 is held by the chuck rubber 23. It turns downward along. Therefore, when removing the bottle 53, the bottle can be easily removed simply by releasing the constraint of the guide rail 56, lowering the swing shaft 2 vertically downward, and pressing the push rod 7 projecting upward.

FIGS. 7 (a), (b), and (c) are views showing a de-jar state in the coating apparatus of the present embodiment. When the bottle 53 supported horizontally on the guide rail 56 as shown in (a) is located on the upper surface of the pallet 64 of the automatic attachment / detachment device 54 shown in FIG. 1, the guide is provided as shown in (b). Releases the restraint of rails 5 and 6 and becomes vertical. Then, the pallet 64 rises to the bottom position of the bottle 53, and in conjunction with this, the rod 65a of the hydraulic cylinder 65 extends. As a result, the pusher 7 of the holder 100 is pushed, and the outer diameter of the chuck rubber 23 becomes smaller than the inner diameter of the mouth of the bottle 53. In this state, the pallet 64 descends, and the bottle 53 can be removed by its own weight as shown in (c).

FIG. 8 shows another embodiment of a bottle holder, in which the tip of a rubber chuck 35 as an elastic body has a conical shape in order to improve the slip when inserted into the bottle and to facilitate manufacture. No • Iron guide 36 is detachably attached. Reference numeral 37 denotes a bush embedded in the top guide 3.6 and threaded with a female screw 37a. At the tip end of the chuck shaft 38, a male screw 38a to be screwed with the female screw 37a is formed. ing. Reference numeral 39 denotes a metallic reinforcing tip provided at the tip of the chuck rubber 35. Reference numeral 40 denotes an air hole that replaces the air hole described as 24 in the previous embodiment 5. The air when the bottle 53 is held by notching the upper surface of the chuck rubber 35 and a part of the flange portion. It has a groove. As a result, manufacturing became easier and strength was improved.

• As described above, in the bottle holder of this embodiment, the force is applied to the chuck rubbers 23 and 35 only when the bottle is extended, and when the bottle 53 is held. Even when it is not zero, no strong force is applied to the chuck rubbers 23 and 35. Therefore, compared with the conventional one in which the expanded state is maintained for a long time, the set of the chuck rubbers 23 and 35 is less, and the life of the entire holder 100 can be drastically extended. • In addition, the cap 6 is screwed to the rotary cylinder 3 so that it can be easily removed. • If the diameter of the bottle 53 to be held is greatly different, change the chuck rubber 23, 35 5 Can be easily done.

In the present embodiment, the description has been made on the bottle holder for coating the bottle. However, the present invention is not limited to this. Of course, it can be widely used when maintenance is required.

• Since the bottle holder of the present invention has the above-described configuration, the following effects can be obtained.

0 Because the bottle can be held from the inside, the entire outer peripheral surface of the bottle can be coated • In addition, it can be securely held regardless of slight errors in the inner diameter of the bottle mouth. can do. Further, the structure of the entire holder is simplified, and the production cost can be significantly reduced. In addition, the life of the elastic body is dramatically increased, and the maintenance cost can be reduced.

5 In addition, by providing a coil panel for restoring the elongated chuck shaft on the holder body, even if the restoring force of the elastic body is weakened, the elastic body is properly secured by the appropriate elastic force of the coil panel. Can be restored. In addition, if a conical top guide made of synthetic resin is attached to the tip of the elastic body, the sliding is improved and the insertion of the elastic body into the bottle becomes easy.

[Industrial applicability]

INDUSTRIAL APPLICABILITY The bottle holder of the present invention can be used in a coating apparatus or the like for coating rubber or synthetic resin or the like on the outer surface of a glass bottle or the like.

Claims

The scope of the claims

1. A holder main body, an elastic bottle holding elastic body attached to the holder main body, and a chuck shaft having one end attached to the elastic body and movably disposed in the holder main body. The outer diameter of the elastic body is larger than the inner diameter of the mouth of the bottle to be held in a natural state, and the elastic body expands when the chuck shaft is moved in the elastic body direction. A bottle holder having a diameter smaller than the inner diameter of the mouth of the bottle.

2. The bottle holder according to claim 1, wherein the holder main body has a coil spring for restoring the chuck shaft having the elastic body extended to a state before the movement.

3. The bottle holder according to claim 1, wherein a fiber-shaped synthetic resin top guide is attached to an end of the elastic body.