JP2003010758A - Long-sized gun for high temperature liquid or melt - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a long-sized gun for a high temperature hot melt in which the necessity of the increase of stiffness against the heat deformation due to the thermal expansion or the like is eliminated and which is made to be small- sized and lightweight and easily manufactured to reduce the production cost. SOLUTION: The long-sized gun 1 for the high temperature hot melt is constructed by arranging many gun modules 3 side by side in the longitudinal direction of a long-sized block 2 having high temperature supply passages 8 and 8a inside and extended to the longitudinal direction, where each of the gun modules 3 is provided with a nozzle 4 for discharging the hot melt supplied through the hot melt supply passage communicating with the supply passages 8 and 8a of the block 2, and is constituted so as to integrally joining the whole by dividing the block 2 of the long-sized gun 1 into a plurality of pieces in the longitudinal direction, joining respective divided blocks 2a and 2b with vertically joining plates 13 and 14 and allowing the hot melt supply passage 8 of respective blocks 2a and 2b to communicate with each other via a pipe joint 15.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a long object for applying a high temperature liquid or melt such as hot melt in a high temperature molten state to a wide object to be coated, such as a wide filter medium such as an air filter. More particularly, the present invention relates to a long gun for a high-temperature liquid or melt which can be reduced in size and weight by thermal deformation due to thermal expansion or the like.

[0002]

2. Description of the Related Art Conventionally, when forming a filter medium having a large number of pleats of a filter such as an air filter,
A high-temperature hot melt as a liquid or a melt is intermittently linearly or beaded on the surface of the filter medium that has been preliminarily pleated along the crease line and then stretched into a plane, or,
A method is employed in which the pitch (interval) of the pleats of the filter medium is fixed by continuously applying the filter medium and then bending the filter medium along the crease lines and pleating.
When hot melt is applied to the surface of a filter medium for such a purpose, when hot melt is applied to a wide filter medium having a wide width, or when a plurality of filter media are used to improve the coating efficiency for a narrow filter medium. When a plurality of gun modules are arranged side by side and applied at one time, a long gun in which a large number of gun modules each having a hot melt discharge nozzle are arranged side by side is used.

In such an elongated gun, one long metal block extending in the longitudinal direction is formed through the hot melt supply passage in the longitudinal direction of the inside thereof. A plurality of gun modules, each having a nozzle for discharging hot melt supplied in a bead shape through a communicating supply passage, are arranged side by side at predetermined intervals in the longitudinal direction of the block. .

[0004]

The block for mounting the plurality of gun modules is subjected to a heating action by a heater such as a cartridge heater which extends in the longitudinal direction of the block and is inserted therein. Hot melt in a molten state having a high temperature of, for example, 180 ° C. and a maximum of 250 ° C. is circulated through the supply passage. Then, the block itself is prevented from being deformed due to thermal expansion due to the circulation of such high temperature hot melt as much as possible, and the discharge port position of the nozzle at the tip of the gun module attached to the block is applied to the filter material which is the object to be coated. In order to prevent the block from getting out of order, the block is made to have rigidity.

However, in particular, in the case of a long gun in which the width of the block (length in the longitudinal direction of the block) exceeds, for example, 500 mm, in order to make the block so rigid against thermal deformation, As the width of the block itself becomes larger (longer), its height direction, or
It is also necessary to increase the length in the depth direction, and for this reason, the volume of the block obtained by multiplying the width, height and depth length increases dramatically. To put it to the extreme, for example, when a long gun whose block width is twice that of the existing gun is required, in order to maintain the rigidity to withstand thermal deformation, both its height and its length should be doubled. If it had to be done, the volume would be eight times larger. If the width of the block is increased in this way, the volume is correspondingly increased, and therefore the weight is also excessively increased. Therefore, the entire gun becomes extremely large and heavy. Further, the support for fixing and supporting the gun also needs to have a high rigidity, and accordingly needs to be large in size, and therefore the whole gun equipment becomes extremely large and heavy. And, for that reason, the manufacturing cost becomes higher than necessary.

In the case of manufacturing one long block, a long hot melt supply passage extending in the longitudinal direction and a heater for inserting a heater such as a cartridge heater are installed in the block. It is necessary to form a heater insertion hole, and further, the block is branched from the main hot melt supply passage to a position corresponding to the mounting position of a number of gun modules that are mounted side by side in the block in the longitudinal direction. A large number of hot melt supply passages for communicating with the gun module and additionally a compressed air supply passage for operating the hot melt supply valve of the gun module must be drilled, which makes drilling extremely difficult. Along with it, the drilling work efficiency is extremely poor,
Not easy to make. Then, there is also a problem that the manufacturing cost becomes high.

The present invention has been made in order to eliminate the drawbacks of the long gun constituted of one wide block as described above. To provide a long gun for a high-temperature liquid or melt that eliminates the need for increased rigidity due to deformation, can be made smaller, lighter in weight, can be easily manufactured, and can reduce the manufacturing cost. To aim.

[0008]

In order to achieve the above object, the present invention has the following constitution. (1) A liquid which is in communication with the supply passage of the block or a liquid which is supplied through a supply passage of the melt to a long block which has a supply passage of a high temperature liquid or a melt inside and which extends in the longitudinal direction. Alternatively, there is provided a long gun for high-temperature liquid or melt in which a large number of gun modules equipped with nozzles for discharging a melt are juxtaposed in the longitudinal direction of the block, and the block of the long gun is It is divided into a plurality of pieces in the longitudinal direction, the divided blocks are connected by a connecting member, and the liquid or melt supply passages of the blocks are made to communicate with each other by pipe joints, whereby the whole is integrally formed. Connected to form a long gun for hot liquids or melts.

(2) In the long gun for high temperature liquid or melt of (1) above, the pipe joint is provided at the end of the liquid or melt supply passage formed on the divided end face of each divided block. It is fitted to the mounting part formed in communication,
In addition, it is configured to be embedded and attached.

(3) In the long gun for high temperature liquid or melt according to the above (1) or (2), each of the above-mentioned divided blocks has a heater built therein and each joint end face has a predetermined joint surface. It is configured to be connected with a gap.

(4) In the long gun for a high temperature liquid or melt according to the above (1), (2) or (3), it is suitable in the vicinity of the connecting portion of each divided block and in the longitudinal direction of the block. Between the block and the support at different points, the block is pulled in the same direction as the discharge direction of the liquid or the melt of the nozzle with respect to the support, and a pair of pulling means for pulling away, and a pulling means, A plurality of pairs of gun modules are attached, and the positions of the nozzle tips of a large number of gun modules can be adjusted or corrected with respect to the object to be coated.

(5) In the long gun for high temperature liquid or melt of (4) above, a plurality of pairs of the pulling means and the pulling means mounted between the block and the block are respectively independent first. Each of the first supports is attached to a support, and the first support is slidably attached to the second support in the same direction as the longitudinal direction of the block.

[0013]

In the structure of (1) above, the block holding the gun module of the long gun is divided and the width is narrow (short).
By being formed, each of the divided blocks has a width corresponding to the length of the width in order to maintain the rigidity against thermal deformation even when a high temperature liquid or a melt is flowed into the internal supply passage. Therefore, it is not necessary to increase the length in the direction (depth) intersecting with the width and the length in the height direction, and thus the need to increase the volume is eliminated. For this reason, even if the long gun has a large overall width, it does not become large,
It does not become heavy, and it is made smaller and lighter overall. And the manufacturing cost is also reduced. Further, as compared with the case where one long block is manufactured, perforation processing of the liquid or melt supply passage of each divided block is easier and easier to manufacture, and the processing efficiency is also improved. From this point as well, the manufacturing cost is reduced.

In the configuration of (2), the pipe joint is fitted into the mounting portion thereof, so that the pipe joint positions the divided blocks at the end face connecting portion and the auxiliary member for connecting the blocks together. Acts as. As a result, assembling of the long gun composed of the divided blocks is facilitated and, in combination with the original connecting action of the connecting member, the whole is more firmly connected and connected.

In the above configuration (3), a heater such as a cartridge heater is incorporated in each divided block,
In addition, the blocks are connected to each other with the end faces of the connecting portions having a predetermined gap therebetween, so that the heat heated by the heater of each block is not transmitted to the other blocks. Therefore,
The temperature of the block, that is, the liquid such as hot melt or the melt is adjusted independently for each block, and the temperature of the entire connected block is surely and easily adjusted. This allows
The viscosity of the liquid or the melt can be made uniform over the whole of the connected blocks, and a uniform amount of the liquid can be applied to the object to be coated from a large number of nozzles.

In the configuration (4), the discharge direction of the liquid or the melt of the nozzle is the same as the vicinity of the connecting portion of each block and between the block and the support body at an appropriate position in the longitudinal direction of the block. A pair of pulling means for pulling the block toward and away from the support, and
By mounting a plurality of pairs of the separating means, the mounting distance between the two can be easily adjusted. Therefore, even if the block side and / or its support side is subjected to thermal expansion of the block due to high temperature of the block, imbalance of strength and heat load due to the longitudinal portion of the block, load load acting on the support Are deformed or displaced due to imbalance due to parts or assembling strength or assembling error between the block and the support, and the discharge ports at the tips of the nozzles of each gun module installed in parallel are Even if the position becomes an unequal distance with respect to the object to be coated, the pulling means of the portion corresponding to the uneven portion, and by adjusting the distance between the block and the support by the separating means, The correction and adjustment are easily performed so that the distance between the discharge port at the tip of the nozzle and the object to be coated becomes uniform. In this case, since a plurality of pairs of pulling means and pulling means are provided, the degree of freedom of adjustment (correction) is increased.

In the structure (5), in addition to the function of the structure (4), the displacement (elongation) in the longitudinal direction caused by thermal expansion due to the high temperature of the block causes the first support to move. It is absorbed (released) by sliding the second support, and no resistance force due to thermal stress in the longitudinal direction of the block is generated between the block and the support. Therefore, the deformation of the support is reduced by pulling the block,
It is possible to reduce the deviation of the distance between the discharge port at the nozzle tip of each of the gun modules arranged side by side in the longitudinal direction of the block and the object to be coated.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the drawings. The drawings all show embodiments of the present invention. FIG. 1 is a front view of a long gun, FIG. 2 is a plan view of FIG. 1, and FIG. 3 is a partially enlarged view of a block connecting portion of the long gun. The right half is a front view (partially cutaway view), the left half is a front view showing the upper and lower connecting plates and the left half of the pipe joint exposed, and FIG. 4 is a plan view (partially cutaway view) of FIG. 5
6 is a side view taken along the line A-A of FIG. 3, FIG. 6 is a front view of a long gun in which a support is attached to the long gun shown in FIG. 1, and FIG.
FIG. 8 is a right side view of FIG. 6, FIG. 9 is a long gun in which another different support is attached to the long gun shown in FIG. 1, and shows the front surface and the upper surface of the block of FIG. FIG. 3 is a perspective view showing a front surface and left and right sides of blocks in opposite directions.

1 to 5, the long gun 1 is constructed so that the whole is wide, that is, as shown in FIG. 1 or FIG. But,
The block 2 which is the main body of the long gun 1 is divided at the central portion in the longitudinal direction, and is composed of a divided block 2a and a divided block 2b having a narrow width, and has a two-divided structure. As shown in FIG. 5, the divided blocks 2a and 2b have a rectangular side surface, and a large number of gun modules 3 are arranged on one surface (front surface of FIG. 1) of the divided blocks at equal intervals in the longitudinal direction. 5 is attached by being screwed into the screw hole 6. 1 to 4, the gun module 3 is shown only at a partial location, and the other installation locations are shown by the center line CL.

A supply passage 8 for hot melt (hereinafter also referred to as HM) as a liquid or a melt is provided in the divided blocks 2a, 2b so as to extend in the longitudinal direction thereof. Further, an HM branch passage 8a is formed by branching from the HM supply passage 8 by forming an opening on the module 3 attachment surface of the block at the attachment position of the gun module 3.

The HM supply passage 8 is provided in each divided block 2
The outer ends in the longitudinal direction of a and 2b are sealed with plugs 8b as shown in FIG.
Is connected to the HM hose joint 9 attached to the rear surface near the end of the. On the other hand, each of the divided blocks 2a and 2b has a heater insertion hole 10 extending in the longitudinal direction at a substantially central portion of the cross section.
As shown in FIG. 2, elongated cartridge heaters 11 are inserted from both sides of each divided block and are attached with their tips facing each other at the center.

Although not shown, a hole for inserting a temperature sensor is formed in each block, and a temperature sensor is inserted and installed in the hole to enable temperature detection to keep the block at a constant temperature. It is designed to be maintained.
In addition, the gun module 3 is provided in the divided blocks 2a and 2b.
On the top surface (upper surface) at a position corresponding to the mounting position of the compressed air pipe, a number of screw holes 21 for mounting the compressed air pipe are formed at substantially equal intervals in the longitudinal direction, and each screw hole 21 has an opening. The compressed air supply passage 21a formed on the mounting surface of the module 3 is connected and formed.

The gun module 3 is of a so-called zero cavity type. Although not shown, the gun module 3 has an HM formed therein so as to communicate with the HM branch passage 8a and extend in the longitudinal direction of the central portion. A lower end extending vertically inside the HM supply passage, and a lower end extending vertically inside the HM supply passage; and a pneumatic actuating piston provided slidably in the vertical direction inside an air cylinder formed above the HM supply passage. And a plunger having a pointed needle valve.
The upper end of the plunger is urged downward by a spring inside the module 3, and the needle valve at the lower end is always seated on the valve seat of the HM discharge port of the nozzle 4 to close the discharge port of the nozzle. It is said that. Reference numeral 3a is a micro adjuster provided on the top of the module 3 for finely adjusting the stroke of the plunger.

The compressed air supply passage 21a formed inside the blocks 2a and 2b is connected to an air cylinder slidably accommodating the working piston of the plunger. With this structure, a solenoid valve (not shown) is operated to supply compressed air to the compressed air pipe mounting screw hole 21 and the compressed air supply passage 21a of the block via the compressed air pipe (not shown). When the piston is moved, the plunger is moved upward and the needle valve is separated from the valve seat, and the hot melt HM is passed through the HM supply passage 8 of the block, the branch passage 8a and the HM supply passage of the module 3 to the nozzle 4 Can be discharged from the tip of the discharge port and applied to the object to be coated.

Thus, each divided block 2a, 2b
Is a portion that becomes the connecting portion S of the blocks at the inner end portions thereof, and two upper and lower connecting plates 13 and 14 as connecting members are screwed to the blocks 2a and 2b with a plurality of flat head screws 3a. Are integrally connected and coupled. As shown in FIGS. 3 and 5, the connecting plates 13 and 14 are attached by being sunk in the block in the thickness direction so that the surface thereof is flush with the surface of the block. Then, as shown in detail in FIGS. 3 and 4, each of the divided blocks 2a,
At the inner end of the connecting portion S of 2b, each of the divided blocks 2a, 2b is provided for connecting the supply passages 8, 8 of the two divided blocks 2a, 2b to the end of the hot melt supply passage 8. Stepped fitting holes 20 as mounting portions for the pipe joints 15 are formed in the same shape and in communication with the supply passages 8, 8.

The pipe joint 15 has a circular collar at the center.
It has a portion 16 and is formed with a sleeve portion, that is, a sleeve 17, on both sides thereof, and an O (o) ring mounting groove 18 is formed in the sleeve 17 portion. An HM passage 15a having the same diameter as the HM supply passage 8 of the block is formed so as to penetrate therethrough. The outer shape of the pipe joint 15 and the inner shape of the stepped fitting hole 20 are generally similar to each other and have the same size. However, the pipe fitting 15 and the fitting hole 20 are at least the flange portion of the pipe fitting 15. 16 and a portion of the fitting hole 20 in which the collar portion 16 is located are such that the outer periphery of the collar portion 16 is in close contact with the inner periphery of the portion of the fitting hole 20 in which the collar portion 16 is located. It is formed with a dimension. Further, the thickness of the collar portion 16 and the collar portion 16 of the fitting hole 20.
The width of the portion where is located (the depth dimension in the longitudinal direction of the block from the end face of each block) is equal to that of both divided blocks 2a,
When 2b is connected by the connecting plates 13 and 14,
The gap C between both end surfaces of the connecting portion S of both blocks is formed with a size such that a predetermined gap, for example, 1 mm is provided.

The divided blocks 2a, 2 having the above structure
b and the pipe joint 15 are the upper joint plate 13 and the lower joint plate in a state in which the pipe joint 15 is inserted into the stepped insertion holes 20 on both sides of the end surface of the connecting portion S of each divided block, fitted and embedded. By attaching 14 to both blocks, they are integrally connected and formed as an elongated block 2, and the whole is formed as an elongated gun 1. Then, the pipe joint 15 is fitted into the stepped fitting hole 20 that is a mounting portion to the blocks 2a and 2b, so that the pipe joint 15 positions the blocks 2a and 2b relative to each other at the end face of the connecting portion S. It also acts as a connection assisting member for the blocks. Therefore, the long gun 1 can be easily assembled, and the long gun 1 as a whole is more firmly connected and joined together with the connecting action of the upper and lower connecting plates 13 and 14.

An O-ring 19 is attached to the O-ring attachment groove 18 of the pipe joint 15 and sealed between the pipe joint 15 and the fitting hole 20, so that the hot melt flowing in the HM supply passage 8 is exposed to the outside. Leakage is prevented. The two blocks 2a, 2b are thus integrally connected to each other by the action of the flange portion 16 of the pipe joint 15 so that the two blocks 2a, 2b are
A predetermined gap C, 1 mm in the present embodiment, is provided between the end faces of the connecting portion S of b. As a result, the amount of heat heated by the cartridge heater 11 inserted and installed in the heater insertion hole 10 inside each of the divided blocks 2a and 2b is not transmitted to the other divided blocks.

Therefore, the block, that is, the high temperature (usually 18
The temperature of the hot melt (0 ° C., maximum 250 ° C.) can be adjusted independently for each divided block. As a result, the temperature of the entire connected blocks can be kept uniform, and the temperature of the hot melt of the entire long gun can be adjusted reliably and easily. That is, it is possible to make the viscosity of the hot melt uniform over the entire connected blocks, and a uniform amount of coating is performed from each of the nozzles 4 of the multiple gun modules 3 to the coating object 40.

In the long gun 1 of this embodiment, the block holding the gun module 3 of the long gun 1 is divided into divided blocks 2a and 2b as described above. Since 2b is formed with a narrow width (short), even if each of the divided blocks receives the heating action of the cartridge heater 11 and a high-temperature hot melt flows through the internal supply passage 8 and branch passage 8a, In order to maintain the rigidity against thermal deformation of each divided block, it is not necessary to increase the length in the direction (depth) intersecting with the width and the length in the height direction according to the length of the width. .

Therefore, the need to increase the volume of the block is eliminated. For this reason, the long gun 1 with a large overall width
However, the size is not increased, the weight is not increased, and the size and weight are reduced as a whole. And the manufacturing cost is also reduced. Further, as compared with the case where one long block is manufactured, perforation processing of the liquid or melt supply passage of each divided block is easier and easier to manufacture, and the processing efficiency is also improved.
From this point as well, the manufacturing cost is reduced.

Next, based on FIGS. 6 to 8, the support 35 will be described.
An embodiment of the long gun 1 to which is attached will be described. In this embodiment, the long gun body, such as the divided blocks 2a and 2b, has the same structure as that of the embodiment shown in FIGS. The support body 35 is formed of one long L-shaped steel, and the surface of one side in the orthogonal direction is horizontally extended so as to face the upper surfaces of the divided blocks 2a and 2b that are integrally connected and joined. . As shown in FIG. 8, the support 35 is attached to the gun mount 3 through a connector inserted in the connector mounting hole 36.
It is fixedly supported by 7.

The support member 35 has a total of four inner end portions on the connecting portion S side of each divided block and the outer end portions of each divided block with the connecting portion S of the divided block as a boundary. The connecting blocks are connected by the studs 31 and the nuts 32 screwed to the studs at the points. The stud bolt 31 is fixed by being screwed into a female screw threaded through the support body 35 and screwed to the divided block body, and the stud bolt 31 fixed to the block body is attached to the nut from the support body 35 side. 32 is screwed. Then, in the vicinity of each of the studs and nuts 31 and 32, a hexagon socket head cap screw 34 is attached to a female screw screwed to the support body 35.
The threaded portion is screwed, and the tip formed into a spherical surface is attached in contact with the upper surface of the block.

The studs at the inner ends of the connecting portions S of the divided blocks penetrate through the through holes 13b formed in the upper connecting plate 13 and are screwed onto the upper surface of the block, and the tips of the hexagon socket head bolts 34 are also provided. Is in contact with the upper surface of the upper connecting plate 13. Of the through holes of the support body 35 of the stud bolt 31, one through hole of the support body 35 of the stud bolt 31 located on the right side of the block connecting portion S in FIG. 1 has a gap with the outer diameter of the stud bolt 31. The size is almost eliminated, and the locating bolt 31 located on the right side of the block connecting portion S positions in the left-right direction. In the figure, reference numerals 35a and 35b denote reinforcing seats integrally attached to the mounting portions of the studs 31 and the hexagon socket head bolts 34 of the support 35, and the through holes of the studs 31 are the reinforcement seats and the support 35. And the screw hole for screwing the hexagon socket head cap screw 34 is also provided on both the reinforcing seat and the support body 3.
5 and 5 are both screwed.

Then, the other three studs 31
The through hole of the support body 35 is formed as an elongated hole that is elongated in the width direction (longitudinal direction) of the divided block. And
For the studs 31, the disc spring 33 is interposed between the nut 32 and the support 35. The divided blocks 2a and 2b are fixedly supported on the support body 35 by a pair of adjoining studs 31 into which nuts 32 are screwed and hexagon socket head bolts 34 with their distances (distances) h1 adjusted. Support 35 and divided blocks 2a, 2
In order to adjust the interval h1 between b, when the interval is narrowed, the hexagon socket head cap bolt 34 is loosened from the state of FIG. 6 and the nut 32 of the stud bolt 31 is tightened. Also, the interval h
When unfolding No. 1, loosen the nut 32 of the stud bolt 31 and tighten the hexagon socket head bolt 34.

Of course, in this fixed support, four pairs of
With respect to the stud bolt 31 into which the nut 32 is screwed and the hexagon socket head bolt 34, the distance h1 between the upper surface of the divided block and the support 35 is substantially equal. The stud bolt 31 and the hexagon socket head cap screw 34 into which the nuts 32 of each pair are screwed are installed in the same direction as the hot melt discharge direction of the nozzle 4 of the gun module 3, so that the upper surface of the divided block and the support are supported. Distance h between bodies 35
By adjusting 1, the distance h2 between the nozzle 4 of each gun module 3 and the article 40 to be coated can be adjusted. Finally, the distance h2 between the wide flat plate-shaped object to be coated 40 and the tip of the nozzle 4 of the gun module 3 is made uniform for each of the gun modules 3 juxtaposed in the longitudinal direction of the connecting block. Adjust and correct each time.

Thus, the stud bolt 31 with the nut 32 is constructed as a pulling means 30 for pulling the integrated divided blocks 2a, 2b to the support 35, and is adjacent to and paired with the pulling means 30. The hexagon socket head cap screw 34 is configured as a separation means for separating the integrated divided blocks 2 a and 2 b from the support body 35. The distance h1 of the divided blocks 2a and 2b integrated by operating the pair of pulling means 30 and the separating means 34 in cooperation with each other with respect to the support body 35.
Adjust (correct).

Since the integrated divided blocks 2a and 2b are attached to the support 35 as described above,
During the hot melt coating operation, the divided blocks are, for example, 180
Even if the temperature is increased to a high temperature of ℃ and thermal deformation such as thermal expansion occurs, the position of the divided blocks 2a, 2b is fixed to the support 35 by the single stud bolt 31 located on the right side of the block connecting portion S in FIG. Starting from a point, it can freely extend to the left and right in the width direction (longitudinal direction).

That is, when the block extends in the left-right direction with respect to the support 35, the three studs 31 other than the one stud 31 located on the right side of the block connecting portion S in FIG. Although it moves in the left-right direction, at this time, the through hole of the stud of the support body 15 is formed as an elongated hole extending in the left-right direction to allow the movement in the left-right direction, and between the nut 32 and the support body 35. The disc spring 33 is interposed and the upper surface of the disc spring 33 and the nut 32
Sliding of the nut 32 with the lower surface allows the nut 32 to move in the left-right direction. Further, since the hexagon socket head cap screw 34 has a spherical tip at its abutting end and is in point contact with the block, resistance due to friction is small and the block can be easily moved with respect to the bolt 34.

Further, the blocks 2a and 2b are not necessarily displaced only in the longitudinal direction as described above due to thermal expansion,
Naturally, it is also displaced in the direction intersecting the longitudinal direction. Moreover,
The amount of deformation or displacement of such a block varies depending on the strength of the block itself or the heat load, the imbalance due to the position of the load applied to the support 35, or the assembling of the joint between the block and the support 35. Due to the imbalance due to the strength, the assembly error, and the like, there are variations in the length of the block and the degree of the difference, and the support 35 is also affected by the displacement and deformation of the block. It may be deformed or displaced. Therefore, it is necessary to correct the unexpected deformation or displacement due to the high temperature of such a block according to the actual displacement situation during operation.

In such a case, in the present embodiment, a plurality of pairs of spacing adjusting means between the block composed of the pair of pulling means 30 and the separating means 34 and the support body are provided at a plurality of locations (four locations) in the longitudinal direction of the block. Since they are installed (four pairs), due to the displacement of the block and the displacement of the support body 35 caused by the displacement as described above, the tip nozzles 4 of the gun module 3 mounted side by side in the longitudinal direction of the block are attached. Even when the distance h2 between the wide flat object 40 is displaced, a pair or a plurality of pairs of the pulling means 30 and the pulling means 34 at a predetermined position are corrected to correct (correct) the displacement. It is possible to correct the distance h2 between the nozzle 4 and the object to be coated 40 to eliminate the displacement by adjusting the distance h1 of the block with respect to the support 35 by operating in cooperation with each other. , It is possible to increase the displacement adjustment flexibility.

In the method of absorbing the displacement (elongation) of the block in the longitudinal direction or the direction intersecting the longitudinal direction due to the thermal expansion, the support body 35 is made of iron so as to have a supporting strength of the block, and the block is lightweight. In the case where aluminum is used in order to reduce the cost and improve the cutting and cutting workability and reduce the cost, the coefficient of thermal expansion of aluminum is 1.5 to 2 times that of iron, and the thermal deformation is large, which is particularly effective. .

Next, an embodiment in which the block supports have different support shapes will be described with reference to FIG. Figure 9
1 shows a long gun in which another different support is attached to the long gun shown in FIG. 1, and in order to clearly show the support, the front and upper surfaces of the block in FIG. FIG. 3 is a perspective view showing the and other parts in an opposite direction. This embodiment is the same as the L shown in FIGS.
Instead of the integral support 35 made of shaped steel, a plurality of pairs of pulling means 30 and a plurality of pairs of spacing adjusting means made up of the separating means 35 are individually and independently attached to each pair of blocks. The first support bodies 44 and the second support bodies 50 to which the respective first support bodies 44 are attached slidably in the longitudinal direction of the block.

That is, the first support member 44 is provided with a pair of pulling means (comprising a stud bolt 31 and a nut 32 screwed thereto) 30 and a separating means (comprising a hexagon socket head bolt) 34 between the block and the block. L-shaped bracket 45 with attached
And a column 46 made of round steel for mutually supporting the L-shaped metal fitting 45 and the blocks 2a and 2b, and the L-shaped metal fitting 4
5, a connecting rod 47 made of round steel for vertically connecting the slider 5 and the lower slider 48, and a leg portion slidably fitted to the slide rail 50a of the second support 50 in the longitudinal direction of the block. And a slider 48. 45a is L
It is a connection bolt that connects two plates in the orthogonal direction of the mold fitting 45. The second support body 50 includes a slide rail 50a on which the slider 48 is fitted and a support body 50b that supports the slide rail 50a.
0a extends parallel to the longitudinal direction of the block along the longitudinal direction of the block.

Similar to the embodiment shown in FIGS. 6 to 8, the first support members 44 are installed near the connecting portion S of each of the divided blocks 2a and 2b and at the outer end portion, for a total of four places. The slider 48 immediately to the right of the divided portion S of FIG. 8 of the first support body has the two bolts 49 of the legs of the slider 48 screwed into the slider 48 so that the tip end thereof is the slide rail 50a of the second support body 50. It is crimped to the side part and prevented from moving to the left and right to serve as a position fixing point. The bolts 49 of the slider 48 of the first support body 44 at the other three positions are free with respect to the slide rail 50a and are set to be slidable on the slide rail 50a. Therefore, expansion (displacement) in the block longitudinal direction due to thermal expansion of the block occurs in the left-right direction starting from the mounting bolt 31 mounting portion of the L-shaped metal fitting 45 on the right side of the divided portion S.

The stud bolt 31 with the nut 32 as a pulling means is fixed to the block by penetrating the L-shaped metal fitting 45 through the through hole and screwing the tip into the block, and tightening the nut 32 on the surface of the L-shaped metal fitting 45. As a result, the block is connected to and supported by the L-shaped metal fitting 45. However, in the present embodiment, the expansion in the longitudinal direction due to the thermal expansion of the block is absorbed (escaped) by the slider 48 of the first support body 44 sliding on the slide rail 50a of the second support body 50. Like the embodiment of FIGS. 6 to 8, the through holes of the studs 31 need to be elongated holes that extend in the longitudinal direction of the block, and a disc spring may be provided between the nut 32 and the support (L-shaped metal fitting 45). A round hole through which the stud 31 penetrates may be used. Further, the hexagon socket head cap screw 34 as a separating means is screwed into the L-shaped metal fitting 45 so that its tip is brought into contact with the surface of the block.

Also in such a configuration, the gap adjusting means between the first support 44 and the block, which is a pair of pulling means 30 and pulling means 34 provided between the block and the first supporting body 44, is provided at a plurality of positions in the longitudinal direction of the block. Since a plurality of pairs (four pairs) are installed at (four places), the displacement of the block due to the high temperature of the block as described in the embodiment of FIGS. 6 to 8 and the first support caused by the displacement Even when the displacement of the body 44 causes the distance between the tip nozzle 4 of the gun module 3 mounted side by side in the longitudinal direction of the block and the wide flat article 40 to be displaced, First support 4 at a predetermined position to correct (correct) the displacement
Adjusting the distance between the first support 44 of the block and the support fitting 45 by operating the pair of or a plurality of pairs of the pulling means 30 and the pulling means 34 attached to the four L-shaped fittings 45 in cooperation with each other. Thus, the distance between the nozzle 4 and the object to be coated 40 can be corrected to eliminate the displacement, and the degree of freedom in displacement adjustment can be increased.

In the present embodiment, the slider 48 of the first support 44 slides on the second support 50 due to the displacement (elongation) in the longitudinal direction of the block caused by the thermal expansion of the block due to the high temperature. It is absorbed (released) by sliding the rail 50a in the longitudinal direction of the block, and a resistance force due to thermal stress in the longitudinal direction of the block is generated between the block and the support (first support 44). do not do. Therefore, when the block is pulled, the deformation of the support is further reduced, and the distance between the discharge port at the tip of the nozzle 4 of each of the gun modules 3 and the object to be coated 40 that are installed side by side in the longitudinal direction of the block is reduced. It is said that there is less madness.

In the above embodiment, the long gun 1 in which the block 2 is divided into the divided block 2a and the divided block 2b is shown, but in the present invention, of course, the block is divided into three or more and they are connected. It may be a case in which the entire member is connected to the member and the pipe joint to form a long gun.

In the above embodiments, the gun module 3 is of the zero cavity type, but of course the present invention may be a discharge (coating) head of another type of liquid or melt. .

In the above embodiments, the case where the liquid or the melt is a hot melt is shown, but other high temperature adhesives (for example, moisture-curable hot melt adhesives such as urethane reactive hot melt adhesives). Agent) or the like. Further, the article to be coated 40 is not limited to the filter material of the filter, and may be an article to be coated having various wide coating surfaces in other fields such as building materials, home appliances, and the electronic industry.

[0052]

As is apparent from the above description, the present invention has the following excellent effects.

According to the first aspect of the present invention, the block for holding the gun module of the long gun is divided to have a narrow width (short), so that each block has a high temperature liquid or a high temperature liquid in the internal supply passage. Even when the melt is flowed, each divided block maintains rigidity against thermal deformation,
According to the length of the width, it is not necessary to increase the length in the direction (depth) intersecting with the width and the length in the height direction, and therefore, it is not necessary to increase the volume. Therefore, even a long gun having a large overall width does not increase in size and weight, and can be reduced in size and weight as a whole. Also, the manufacturing cost can be reduced. And 1
As compared with the case where a long block of books is manufactured, perforation processing of the liquid or melt supply passage of each divided block is easier and easier to manufacture, and the processing efficiency can be improved.
From this point as well, the manufacturing cost can be reduced.

According to the second aspect of the present invention, the pipe joint is fitted to the mounting portion thereof, so that the pipe joint causes the divided blocks to mutually position at the end face connecting portion and also serves as an auxiliary member for connecting the blocks. Can be operated. As a result, it is possible to easily assemble the long gun composed of the divided blocks, and in combination with the original connecting action of the connecting member, it is possible to more firmly connect and join the gun.

In the structure of claim 3, a heater such as a cartridge heater is installed in each of the divided blocks, and the blocks are connected to each other with their connecting end faces having a predetermined gap therebetween. The heat heated by the heater of each block is not transferred to other blocks. Therefore, the temperature of the block, that is, the liquid such as hot melt or the melt can be independently adjusted for each block, and the temperature of the entire connected block can be surely and easily adjusted. As a result, the viscosity of the liquid or melt can be made uniform over the entire connected blocks, and a uniform amount of coating can be applied to the object to be coated from a large number of nozzles.

According to the structure of claim 4, the mounting distance between the block and the support can be easily adjusted. Therefore, even if the block side and / or its support side is subjected to thermal expansion of the block due to high temperature of the block, imbalance of strength and heat load due to the longitudinal portion of the block, load load acting on the support Are deformed or displaced due to imbalance due to parts or assembling strength or assembling error between the block and the support, and the discharge ports at the tips of the nozzles of each gun module installed in parallel are Even if the position becomes an unequal distance with respect to the object to be coated, the nozzle tip is adjusted by adjusting the distance between the block and the support by the pulling means and the separating means at the points corresponding to the uneven point. The correction and the adjustment can be easily performed so that the distance between the discharge port and the object to be coated becomes uniform. And
Since a plurality of pairs of pulling means and pulling means are provided, the degree of freedom of adjustment (correction) can be increased.

According to the structure of claim 5, in addition to the effect according to claim 4, the displacement (elongation) in the longitudinal direction caused by the thermal expansion due to the high temperature of the block is the first
Since the support is absorbed (released) by sliding on the second support, no resistance force due to thermal stress in the longitudinal direction of the block is generated between the block and the support.
Therefore, when the block is pulled, the support is less deformed, and the deviation of the distance between the ejection port at the nozzle tip of each gun module and the object to be coated, which are installed side by side in the longitudinal direction of the block. Can be less.

[Brief description of drawings]

FIG. 1 is a front view of a long gun according to an embodiment of the present invention.

FIG. 2 is a plan view of FIG.

3 is a partially enlarged view of a block connecting portion of the long gun of FIG. 1, the right half is a front view (partially cutaway view), and the left half is an upper and lower connecting plates and a left half of a pipe joint is exposed. FIG.

FIG. 4 is a plan view (partially cutaway view) of FIG.

5 is a sectional side view taken along the line AA of FIG.

FIG. 6 is a front view of a long gun in which a support is attached to the long gun shown in FIG.

FIG. 7 is a plan view of FIG.

FIG. 8 is a right side view of FIG.

9 shows a long gun in which another different support is attached to the long gun shown in FIG. 1, showing the front and upper surfaces of the block of FIG. 1 as the upper surface and the front surface, respectively, and the left and right sides of the block in opposite directions. It is the perspective view which it was made to position and was shown.

[Explanation of symbols]

1 long gun 2 long blocks 2a, 2b divided block S connection 3 gun module CL gun module mounting position center line 4 nozzles 8 Hot melt supply passage 8a Hot melt branch passage 10 Cartridge heater insertion hole 11 Cartridge heater (heater) 13 Upper connecting plate 14 Lower connection plate 15 Pipe joint for hot melt supply passage 16 Collar (pipe joint) 17 Sleeve (pipe joint) 18 O-ring mounting groove 19 O-ring 20 Pipe fitting insertion hole (mounting part) 21 Screw hole for compressed air pipe mounting 30 means of attraction 31 Implant bolt (pulling means) 32 nut (pulling means) 33 Belleville 34 Hexagon socket head cap screw (separation means) 35 Support 44 First support 45 L type metal fittings (first support) 46 props (first support) 47 connecting rod (first support) 48 slider (first support) 50 Second support 50a slide rail (second support) 50b Support main body (second support)

   ─────────────────────────────────────────────────── ─── Continued front page    F-term (reference) 4F033 AA01 BA03 CA01 DA04 EA06                       HA01 LA13 NA01                 4F041 AA01 AB01 BA04 BA17 BA35                       BA48                 4F042 AA01 AB01 BA06 BA19 BA25                       CA08 CB04 CB08 CB10 CB11                       CB19 DA09

Claims (5)

[Claims] 1. A long block extending in the longitudinal direction having a high-temperature liquid or melt supply passage therein, and is supplied through a liquid or melt supply passage communicating with the block supply passage. A long gun for high-temperature liquid or melt, in which a plurality of gun modules equipped with nozzles for discharging the liquid or melt are juxtaposed in the longitudinal direction of the block, and the block of the long gun is provided. By dividing the block into a plurality of parts in the longitudinal direction, connecting the divided blocks with a connecting member, and communicating the liquid or melt supply passages of the blocks with each other by pipe joints.
A long gun for high-temperature liquids or melts, characterized in that the whole is integrally connected to form a long gun. 2. The pipe joint is fitted and embedded in a mounting portion formed in communication with an end portion of a liquid or melt supply passage formed on a divided end surface of each divided block. A long gun for hot liquids or melts according to claim 1, characterized in that it is mounted in a fixed manner. 3. The high temperature liquid or melt according to claim 1 or 2, wherein each of the divided blocks has a heater installed therein, and joint end faces of the divided blocks are connected to each other with a predetermined gap. Long gun for the body. 4. Discharge of a liquid or a melt from a nozzle to the support, in the vicinity of the connecting portion of each divided block and between the block and a support at an appropriate position in the longitudinal direction of the block. A plurality of pairs of pulling means and pulling means for pulling and pulling apart in the same direction as the direction are attached, and the positions of the nozzle tips of many gun modules with respect to the object to be coated can be adjusted or corrected. An elongate gun for hot liquids or melts according to claim 1 or 2 or 3. 5. A pair of pulling means mounted between the block and a plurality of pairs of pulling means are mounted on respective first support bodies, and the respective first support bodies are mounted on the second support body. The long gun for a high temperature liquid or melt according to claim 4, wherein the long gun is slidably mounted in the same direction as the longitudinal direction of the block.