JPS5828216B2 - Glass bottle coating equipment - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a coating device for coating the outer surface of a glass bottle with multiple polymeric coatings, and its purpose is to coat only the periphery of the bottom of the bottle and the surface of the bottle. The object of the present invention is to provide an apparatus that can freely coat the entire bottom of the bottle with a polymer source.

Another object of the present invention is to automatically and continuously laminate coating layers for various multi-purpose purposes, such as a cold-resistant inner layer, a high-temperature-resistant inner layer, and a mechanical shock-resistant outer layer. A round rod as a means of supporting the bottle in the immersion layer where bodies can be stored;
By adjusting and changing the mounting position of the flat iron or wire mesh, the desired position of the plate is coated with the polymer source material in a concentrated manner, thereby completely preventing the occurrence of bottle breakage.

Hereinafter, an embodiment of the apparatus for coating the outer surface of a glass bottle with three layers of polymer source A and one layer of polymer source B according to the present invention will be described with reference to the drawings.

The coating apparatus of the present invention is a glass bottle (
(hereinafter referred to as "bottle") attachment/detachment device 16, a plurality of preheating washing tanks 2a, 2b, drying device 11. Multiple bottle outer surface coating devices 5
a, 5b, 5c, 5d... [hereinafter collectively referred to as the bottle outer surface coating device 5] h) and a furnace 17 formed by adiabaticly connecting these essential parts (circumference is shown by a dashed-dotted line) , a plurality of bottle bottom cooling devices 12a12b, and a hot water tank 4 with stepwise temperature differences.
an 4b.

4c, and a hot air blowing fan, an exhaust fan, and a local exhaust fan (none of which are shown) are installed at appropriate locations to measure the furnace 17, and a preheating washing tank 2b, a bottle outer surface coating device 5d A non-rotating part of the bottle is provided at an appropriate distance thereafter, and tanks 2a and 2b are heated to 40°C to 60°C and 60°C to 80°C, and tanks 4a and 4b and 4c are heated to 90'C and 70°C, respectively.
Hot water of about 0°C to 50°C is supplied to maintain a constant water level at all times, and the internal measuring polymer liquid A is a highly elastic material that comes into close contact with the outer surface of the glass bottle after drying and forming a film, and has a moderate adhesive force. The polymeric liquid material B for crying out loud uses a material that has a moderate mechanical strength after being cured by a crosslinking reaction.

As shown in FIGS. 2 to 4, the bottle 10 attaching/detaching device 16 is provided with a guide rail 18 in parallel with the conveyor chain γ, and an angle or the like is provided on the upper part of the guide rail 18 over a range corresponding to the removal portion of the bottle 1. Install the machine frame 20 and attach the guide 19 to it.
The guide 19 presses the flange 21 of the holder 10 in the direction of the arrow (as shown in Figures 2 and 3) in the area corresponding to the removal site of the bottle 1, and The elastic sleeve 22 is allowed to expand.

Reference numerals 47 and 48 are an elastic cap and a spring attached to the holder, respectively.

Above the preheating washing tanks 2a and 2b, hot water injection pipes 23 and 23 are respectively installed as shown in FIGS.
It is deformed and constructed so as to clamp and guide the zero elastic rotary ring 9 and change the inclination angle of the bottle.

If necessary, a rotating brush (not shown) may be provided in the preheating washing tank to remove dirt from the outer surface of the bottle.

The drying device 11 consists of a front part 1'la and a rear part 11b,
The front part '11a has a duct 25 running parallel to the conveyor chain 7 in the bulkhead 3 made of iron plate or the like into which hot air is blown from a hot air blowing fan (not shown), as shown in the sectional view of the main part in FIG. One end of the duct 25 is connected to a hot air blowing fan (not shown), and slits 26 are bored at appropriate intervals above the duct 25, or high-pressure air is inserted along the path along which the bottle 1 moves. A high-pressure air pipe (not shown) is installed to spray the air around the bottle.

In addition, a support 8 (7) to which a holder 10 for holding the bottle 1 is connected
) The cylindrical arm 27 rests on a bar 28 installed parallel to the conveyor chain 7 and adjustable in the vertical direction, and the elastic rotating ring 9 of the holder 10 that holds the bottle 1 is installed parallel to the conveyor chain 7. While the bottle 1 is passing through the front part 11a of the drying device, the bottle 1 is in a state where the bottle 1 is slightly lifted up from the rail 29 and not in contact with the rail 29, and the bottle 1 is tilted so that the bottom is slightly downward from the horizontal position. It will be retained and migrated.

At the rear part 11b of the drying device 11, as shown in FIGS. 7 and 8, the elastic rotating ring 9 of the holder 10 is placed on the rail 29 and the bottle 1 rotates on its own axis, and most of the outer surface of the bottle 1 is rotated. It consists of a moisture removal device that is immersed in a moisture absorbing material 6 such as sponge rubber.

As shown in FIGS. 9 to 14, the bottle outer surface coating device coats the lower part of the outer surface of the bottle 1 depending on the type of polymeric substance that adheres to the outer surface of the bottle, the number of times of coating, temperature, humidity, and other conditions. Coating devices 5a, sb, 5c each held by a 13-inch round bar, a band-shaped flat iron 14, or a wire mesh 15,
An immersion tank 30 and a conveyor chain 7, which consist of a sa and accompanying equipment, and whose installation height can be adjusted in any of the above cases.
In between, there is a roller support stand 32 in which a number of rollers 31 are rotatably arranged parallel to the conveyor chain 7.
The lower surface of the support 3 is supported and the height of the support 8 is held adjustable.

Further, the elastic rotating wheel 9 of the holder 100 is constructed parallel to the conveyor chain 7 and has a rail 29 whose upper surface is partially curved.
An immersion tank 30 in which the upper part is placed and transferred and filled with the polymer source material.
The edge plates 33, 3 are arranged so that the liquid overflows from the edge plate 33t in the direction of movement of the bottle 1 and the edge plate 34 on the mouth side.
4, and an elastic rubber piece 3 is provided on the outer surface of the edge plate 34 as necessary.
6 may be fixed. Hexagram 36 is 13 round bars or 1 flat iron.
4 or a bracket for mounting the wire mesh 15, 37 a stand that is fixed to the main body of the immersion tank 30 and has a long hole 38, 393
9 indicates a mounting bolt, and the immersion tank 30 is a bolt nut 40.
．． 40, the height can be adjusted freely.

When coating the outer surface of the inner bottle with four layers, the bottle 1 is placed in close contact with the dipping tank 30 shown in FIGS. The first polymeric material source forms a highly elastic inner layer.
3. The dipping tank 30 shown in FIGS. 1 and 14 covers the entire surface of the coating liquid and has mechanical strength such as burst resistance, scratch resistance, water resistance, chemical resistance, oil resistance, and weather resistance. It is filled with polymeric substances that form an external layer with excellent properties.

If there is a deep carving design with unevenness on the inner skin surface and there is a concern that too much liquid may accumulate in the recesses, and if the inner layer is an aqueous liquid, the apparatus shown in FIGS. 7 and 8 may be used. is installed immediately before the coating device 5c as shown in FIG. As shown in FIG. 16, the condition of each glass bottle is such that the elastic rotating wheel 9 moves on the rail 29, and as the conveyor belt moves, the bottle 1 rotates and moves.

As shown in FIG. 15, the non-rotating portion of the bottle after the coating device 5d is configured to rotate the bundle 42 to slightly raise the cross member 41, which is installed parallel to the conveyor chain 7, via the cam 43 and the roller 45. As a result, the cylindrical arm 27 of the support 8 is suspended very slightly from the rail 29 on which the elastic rotating ring 9 connected to the cylindrical arm 27 is installed horizontally, so that the bottle 1 is horizontal or its bottom is very slightly raised. It is configured to be moved into the furnace 17 in an inclined state.

The eccentric cam 43 rotates the bundle 42 and rotates the cam 4.
The eccentricity of the cam is set so that the bottle 1 remains horizontal even when the bottle 3 is raised at the top 1.

50 is a shaft for fixing the eccentric cam 43; 51 and 51 are bearings; 52 is a stopper for preventing the conveyor chain 7 from floating; 53 is a pin for rotatably attaching the roller 45 to the crosspiece 41; 44 is a Indicates a drip tray.

The bottle bottom cooling device 12 (FIG. 1) uses an air curtain device in which the part from which cold air is blown is elongated. A plurality of sets 12a and 12b are arranged, and outside air is blown over a wide range along the trajectory direction of the bottles toward the bottom surfaces of the bottles 1 that are successively transferred from the high-temperature furnace 17.

The hot water tank 4 (FIG. 17) consists of a plurality of tanks 4a, 4b4c, etc., and a rod 24 on which an elastic rotating ring 9 is placed is installed so that the bottom of the bottle is tilted downward and most of the bottle can be immersed in the hot water. The upper part of each type is partially curved in the direction of travel.

The bottle holder 10 used in the present invention is the one that was filed earlier as Utility Model Application No. 51-54340.

The operation of one embodiment of the present invention will be explained below.

After the mouth of the bottle 1 is fitted into the elastic cap 47 of the holder 10 by manual or mechanical means, when the bottom of the iron kettle 1 is lifted and released, the elastic force of the spring 480 acts and the inner and outer surfaces of the mouth of the iron kettle 1 are applied. The flange portion 2 of the holder 10 is firmly clamped by the elastic cap 47 and the sleeve 22, each having elasticity.
1 is placed on a guide rail 18 as shown in FIGS. 2 and 4, and as the conveyor chain 7 moves, the bottle 1 moves while rotating.

Next, when the bottle 1 reaches the preheating washing tank 2a, as shown in FIG. The entire circumference of the jar is immersed in hot water of approximately 40°C to 60°C to remove dust, dirt, straw, etc. adhering to the outer surface of the jar, and to preheat and wash the jar. At this position, spray hot water from the nozzle of the hot water injection pipe 23. After completely removing dust, straw, etc. that adheres to the circumferential surface of the bottle,
Similarly, the bottle 1 is preheated at a slightly higher temperature than the tank 2a in a preheating washing tank 2b which stores hot water of about 60° C. to 80° C., and its circumferential surface is completely washed.

Next, the bottle 1 is moved into a drying device 11a heated by an appropriate heat source such as a hot air blowing fan (not shown) and a steam radiator (not shown) as shown in FIG. 9 is placed on the rail 29 and the bottle 1 is held at the lower circumferential surface of the cylindrical arm 27 by a bar 28 which is adjusted so that the bottom part is slightly inclined downward, and therefore the bottle 1 does not rotate in the drying device 11a. As the conveyor chain 7 moves in an inclined state, the bottle 1 moves through the partition wall 3, and during this time, the moisture adhering to the bottle circumferential surface drips from the bottom of the bottle, and the bottom surface of the bottle 1 is blown with hot air from the slit 26 of the duct 25, or High-pressure air is blown toward the outer surface of the bottle 1 from a high-pressure air pipe (not shown) to completely blow off and remove moisture adhering to the skin surface. Reference numeral 9 denotes a device which contacts a rail 29 and dries the peripheral surface of the bottle by rotating and embedding it in a moisture-absorbing material 6 such as sponge rubber to remove water more completely, and then reaching the first layer coating device 5a. .

In this device 5aKi, as shown in FIGS. 9 and 10, as the chino 7 moves in the direction of the arrow, the lower surface of the support 8 is supported by a roller support base 32 having a large number of rollers 31 arranged in rows, and elastically rotates. The ring 9 rotates on a rail 29 with a partially convex iron part in order to ride over the edge plates at both ends of the inlet button and outlet of the soaking tank, and one end of the lower circumference of the bottle 10 is guided and supported by a round bar 13, is transferred into the furnace 17 while rotating.

The bottle 1 then passes through a second layer coating device 5bK, which is connected to a chamber 7 as shown in FIGS. 11 and 12.
As the supporter 8 moves in the direction of the arrow, the lower surface of the support 8 is moved toward the device 5a.
A roller support stand 32 with a large number of rollers 31 arranged in a row similar to
The elastic rotating wheel 9 is supported by a partially convex rail 2.
9, one end of the lower circumferential surface of the bottle 10 is guided and supported by a curved flat iron plate 14 of a rail 29, enters the furnace 17, moves an appropriate distance within the furnace, and then exits the furnace 17. Once exposed, water is applied to the concave portions of the skin surface design using a device as shown in FIGS. 7 and 8, in which a moisture-absorbing material 6a such as sponge rubber is fully impregnated with water, and then transferred to a third layer coating device 5c. It is a transition.

The device 5c is exactly the same as the device 5b described above with reference to FIGS. The fourth layer coating device 5d is used to coat the fourth layer.

As shown in FIGS. 13 and 14, the device 5d is configured such that as the cheno 7 moves in the direction of the arrow, the lower surface of the support 8 is moved toward the device [5].
Similar to a, 5b and 5c, the elastic rotating wheel 9 is supported by a roller support stand 32 on which a large number of rollers 31 are arranged, and the elastic rotating wheel 9 rotates on a partially convex rail 29, so that one end of the lower part of the circumference of the bottle 1 is attached to the rail without being separated. 29 flat iron 14 curved in a convex shape,
Next, it is supported and rotated by a net such as a wire mesh 15, and then, after the final coating device, that is, the fourth layer coating device, as shown in FIG. By rotating the bundle 42 supported by the member 41, the horizontal member 41 is vertically adjusted up and down via the cam 43 and the roller 45, and the elastic rotating ring 9
The bottle 1 is moved in a non-rotating state with the bottle 1 floating very slightly above the rail 29, and during this time, the excess polymer material attached to the outer surface of the bottle is allowed to fall onto the drip tray 44.

Next, the bottle 1 enters the furnace 17, and the elastic rotating wheel 9 moves on the rail 29 to complete the coating.The bottle 1 rotates while being held in a horizontal direction and moves through the furnace 17, curing the coating film. The bottle 1 comes out of the furnace 17.

Then, place an air curtain (not shown) toward the bottom of the bottle.
A hot water tank 4a is filled with warm water having a stepwise temperature difference of approximately 90°C, approximately 70°C, and approximately 50°C.
The elastic rotating wheel 9 is guided by the rod 24 which is bent upward and the hot water overflows from the measuring plate of the hot water tank, and the coated bottle 1 is coated completely and uniformly over the entire surface of the bottle 1 through the hot water. It is slowly cooled.

Next, the bottle 1 is transferred to the outside air and slowly cooled, and the flange 21 of the holder 10 that clamps and holds the bottle 1 is moved in the direction of the arrow (shown in FIGS. 2 and 3) via the guide 19. As a result, the elastic sleeve 22 which clamps and holds the opening of the bottle 10 from all four sides becomes freely expandable, and the bottle 1 can then be removed by manual or appropriate mechanical means to complete the coaching process.

Although one embodiment of coating the bottom periphery of a glass bottle excluding the bottom surface and the outer circumferential surface of the bottle with four layers has been described above, the present invention is of course not limited to such an embodiment. 3. By appropriately selecting or changing any of the coating devices described above without departing from the gist of the invention.
It can be applied to layer coating, two-layer coating, or multi-layer coating of four or more layers, and the size of the bottle depends on the type of polymer source, outside temperature, humidity, shape and size of the bottle, and other conditions. The method of retaining the bottom part of the bottle is to use round bars, flat iron, wire nets, etc. to hold the bottle in the order in which it is held, or to change the mounting position as appropriate, so that the coating range of the bottle can be maintained at the bottle bottom periphery, the hexagram, and the bottle outer periphery, excluding the bottle bottom mentioned above. The design can be modified in various ways, such as coating not only the surface but also the entire bottom of the bottle.

As described in detail above, the present invention includes (1) a plurality of preheating washing tanks 2a, 2, each having a temperature difference set in two stages from normal temperature to a slightly high temperature range;
By sequentially immersing the glass bottles in B, it is possible to completely prevent bottle breakage due to rapid heating processing, which is a weak point of glass bottles, and also to ease the internal distortion of the bottle by applying the new version, allowing for simple cleaning at the same time as preheating. Furthermore, hot water is injected into the bottles from hot water injection pipes 23, 23 installed above the preheating washing tanks to completely prevent contamination caused by each preheating washing tank.

In addition, in the drying device 11a after the preheating washing process, the bottle is moved inside the partition wall 3 in a non-rotating state 11 with the bottom slightly lowered from the horizontal direction, and hot air is blown from below the bottle or from the outer circumferential direction of the bottle. After removing moisture adhering to the outer surface of the bottle using high-pressure air, the bottle is brought into contact with a moisture-absorbing material 6 such as sponge rubber while rotating to completely remove moisture and dilute the first layer coating liquid. This is to prevent

In addition, in the coating devices 5a and 5b, the bottles rotate on their own axis as the conveyor chain moves, and the lower part of the bottle periphery is held in line contact with a round bar 13 made of iron or the like, and a flat iron 14, so that the amount of coating during the bottle coating process is reduced. Completely eliminates the occurrence of defective bottles caused by concentrated lees or lumps of polymeric substances adhering to the edges of the bottle bottom protrusions 46 (Figs. 18 and 19), which require delicate care and a high level of skill and handling. At the same time, the polymer source is supplied so as to always overflow from the rim plate 33 in the direction of movement of the bottle and the rim plate 34 on the mouth side, and a constant liquid level is maintained, so that the polymer substance source is supplied to the desired part of the bottle. The coating can be reliably coated.

Also, before the third layer coating step, the bottle, which has been heated to a high temperature by passing through a high temperature furnace after the first layer coating step and the second layer coating step, is placed in a moisture absorbing material 6a such as sponge rubber sufficiently impregnated with water. The bottle itself is cooled by immersive contact while rotating, and the coating liquid used collects in the valleys of the sculpture on the outer circumference of the bottle, which is extremely uneven, and after film formation, the coating film becomes partially thick and the sculpture design is buried and unclear. This is to prevent this from happening.

In addition, the conveyor chain 7 that connects the entire coating device is a mass-produced product, and naturally there are manufacturing errors in the side chains, and the plate 49 of the chain 7 that is fixed to each support 8
Strictly speaking, there are individual variations in the angle of , and due to this variation, even if the holder 100 and the elastic rotating ring 9 sometimes float up from the rail 29 and the bottle stops rotating 10 times, the fourth layer coating device 5d Since the lower part of the circumference of the bottle 10 is held by a net such as a wire mesh 15, the bottle 1 is rotated due to the frictional resistance with the uneven stripes of the wire mesh 15 as the conveyor chain 7 moves, and the bottle bottom protrusion 46 is filled with polymeric material. It is very easy to obtain a bottle with good slipperiness that is completely free of any base particles.

In addition, after the coating device 5d, the bundle 42 is rotated appropriately and the bottle 1 is
Adjust the inclination angle of the bottle as appropriate, ideally by tilting the bottle to such an extent that no dripping traces of the polymer source material will be left on the bottom of the bottle and moving to a non-rotating state to remove excess polymer source material. can be completely dropped, collected and reused.

In general, it is well known that glass bottles are particularly weak against rapid cooling and will break if rapidly cooled to a temperature difference of 40°C or more. The outside air is applied over a certain distance by an air curtain to prevent the bottles coming out of the furnace from being rapidly cooled down to a temperature difference of 40°C or more, and the temperature of the bottles is lowered step by step in multiple hot water tanks 4as and 4b. The bottle is slowly cooled to almost room temperature (1) to completely eliminate bottle breakage.

In addition, the glass bottles coated by the apparatus of the present invention have a large amount of inner coating that has moderate adhesive strength and high elasticity on the outer surface of the bottle, excluding the bottom part, and an outer coating that has mechanical strength. However, since the terminal is completely covered with an external coating, the bottle will not break even if the bottle is accidentally tipped over, and there are no polymer substances attached to the protrusion at the bottom of the bottle. Even if the bottles are returned to a bottling factory for filling after being distributed on the market and are fed onto a stainless steel conveyor that runs at high speed for bottling, iron kettles have excellent slipperiness and will not tip over. Also, in order to prevent the iron kettle from tipping over, the speed of the conveyor is sometimes lowered to reduce the filling efficiency, or not at all.

In addition, the glass bottle according to the present invention has the advantage that when the bottle is rotated 360 degrees, the entire horizontal surface of the outer edge of the mouth is 6 due to eccentric position coating
．． I'm not saying that it doesn't exceed 5mm.

[Brief explanation of the drawing]

Fig. 1 is an overall explanatory diagram of the coating apparatus of the present invention. Fig. 2 is a perspective view of the attachment and detachment part of the bottle. Fig. 3 is an explanatory diagram showing the bottle just before being removed from the upper part. Fig. 4 is an explanatory diagram showing the bottle that can be separated into the upper part. Fig. 5 is a perspective view showing the operation of the preheating washing tank, Fig. 6 is a sectional view of the main part taken along line C-C in Fig. 1, and Fig. 7 is taken along line D-D in Fig. 1. 8 is a sectional view of the main part, and Fig. 9 is a perspective view of the main part of the same as above.
11 and 13 are coating devices 5a and 5b, respectively.
and perspective views of main parts of 5c and 5d, FIGS. 10 and 12,
Fig. 14 is an explanatory diagram showing a cross section of the main part of the same as above, and Fig. 1
Fig. 5 is a partially cutaway surface view showing the mechanism of the non-rotating part of the bottle applied after the coating device 5d, and Fig. 16 shows the coating devices 5a, 5b, 5.
Fig. 1T is an explanatory drawing showing a cross section of the main part of the hot water tank; Fig. 18 is a carbonated beverage obtained in an example of the present invention. FIG. 19 is a partially cutaway longitudinal cross-sectional view of the glass bottle, and FIG. 19 is a bottom view of the upper part thereof. 11 1...Glass bottle, 2...Preheating washing tank,
4...Hot water tank, 5a, sb, 5c, 5d...
... Bottle outer surface coating device, 6 ... Moisture absorbing material, 7.
... Conveyor chain, 82 ... Support tool, 12 ... Bottle bottom cooling device, attachment/detachment device, 17 ... Furnace. 16...

Claims (1)

[Claims] 1. A large number of supports 8 are attached to an endless conveyor chain 7 that rotates continuously, and a glass bottle holder 10 having an elastic rotation ring 9 is rotatably pivoted to the support 8, and the glass bottle 1 is held by the glass bottle holder 10. The preheating washing tank 2, the drying device 11, the bottle outer surface coating device 5, and the furnace 17 are installed in order at the positions where
, a glass bottle 9 coating device to which a bottle bottom cooling device 12 and a hot water tank 4 are attached is attached, and a bottle outer surface coating device 5 is attached to an elastic rotating wheel of a holder 10 installed horizontally in parallel to a conveyor chain 7. Rail 2 on which 9 is rotatably supported
9, and a dipping tank 30 on which a round bar 13, a band-shaped flat iron 14, or a wire mesh 15 is installed to hold the lower part of the circumference of the glass bottle 10, which moves while lying and rotating.