Disclosure of Invention
The invention mainly aims to provide a gluing device and a gluing method of the gluing device, and aims to provide a high-efficiency low-cost gluing device.
To achieve the above object, the present invention proposes a glue spreading apparatus, wherein the glue spreading apparatus includes:
A base;
a bearing tool arranged on the base and used for bearing the product to be glued and
The glue brushing device is arranged on the base and is provided with a glue brush which can be arranged up and down opposite to the bearing tool;
Wherein, bear frock with at least one of them movable setting of gluey brush, so that glue brush with bear the frock and can be in the upper and lower direction and the relative movable setting of horizontal direction.
In one embodiment, the glue brushing device comprises:
the support frame is arranged on the base;
the mounting seat can be movably mounted on the support frame;
a rubber brush arranged on the mounting seat and
And the glue outlet assembly is arranged on the mounting seat and is provided with a glue outlet port, and the glue outlet port is arranged corresponding to the glue brush.
In one embodiment, the glue brush is adjustably mounted to the mounting base in a horizontal position.
In an embodiment, a first mounting part is movably arranged on the mounting seat, and a first adjusting piece is arranged between the mounting seat and the first mounting part and used for driving the first mounting part to move in a first horizontal direction relative to the mounting seat;
A second installation part is movably arranged on the first installation part, a second adjusting piece is arranged between the second installation part and the first installation part, and the second adjusting piece is used for driving the second installation part to move in a second horizontal direction relative to the first installation part;
the rubber brush is arranged on the second installation part.
In one embodiment, the first adjustment member comprises a first screw, and/or,
The mounting seat is provided with a first accommodating groove, the first mounting part at least partially stretches into the first accommodating groove to be arranged, the first adjusting piece comprises a first screw rod which penetrates through the mounting seat, the first screw rod stretches into the first accommodating groove to be matched with the first mounting part so as to drive the first mounting part to move along a first horizontal direction, and/or,
The second adjustment member comprises a second screw, and/or,
The first installation department is last to have seted up the second accommodation groove, the second installation department at least part stretches into the setting of second accommodation groove, the second regulating part is including running through the second screw rod of locating the first installation department, the second screw rod stretches into in the second accommodation groove, in order to cooperate with the second installation department, in order to drive the second installation department moves along the second horizontal direction.
In an embodiment, the bearing tool includes:
a main body provided with a bearing area for bearing the product to be glued, and
The scraping plate is arranged on the main body and is positioned on one side of the bearing area.
In an embodiment, the main body is provided with a liquid receiving groove at a position corresponding to the bearing area.
In an embodiment, the carrying area is used for carrying a tray with a product to be glued, and a positioning structure is arranged in the carrying area and used for positioning the tray.
In one embodiment, the positioning structure comprises a positioning post.
In an embodiment, the glue scraping plate is provided with a calibration mechanism, and the calibration mechanism is used for aligning with the glue brush so as to calibrate the relative position between the bearing tool and the glue brushing device.
In an embodiment, the calibration mechanism includes a positioning column protruding from the doctor blade.
In an embodiment, the carrying area is used for carrying a tray with a product to be glued, and a detection mechanism is further arranged in the carrying area and is used for detecting the tray.
In one embodiment, the bearing tool can be movably arranged on the base along a second horizontal direction and
The rubber brush can be movably arranged on the base along the first horizontal direction and the up-down direction.
The invention also provides a gluing method of the gluing equipment, wherein the gluing equipment comprises a base, a bearing tool and a gluing device, and the bearing tool is arranged on the base and is used for bearing a product to be glued; the glue brushing device is arranged on the base and is provided with a glue brush which can be arranged up and down relative to the bearing tool, wherein at least one of the bearing tool and the glue brush can be movably arranged so that the glue brush and the bearing tool can be arranged relatively in the up-down direction and the horizontal direction;
the gluing method of the gluing equipment comprises the following steps:
placing a material tray carrying a product to be glued on the carrying tool;
and starting the gluing equipment to enable at least one of the bearing tool and the glue brush to move, so that the glue brush glues a plurality of products to be glued on the material tray along a preset path.
In an embodiment, the bearing tool comprises a main body and a scraping plate, wherein a bearing area is arranged on the main body and used for bearing a product to be glued, and the scraping plate is arranged on the main body and positioned at one side of the bearing area;
After the step of starting the gluing device to enable at least one of the bearing tool and the glue brush to be movable so that the glue brush glues a plurality of products to be glued on the material tray along a preset path, the method further comprises the steps of:
and controlling the rubber brush to move to the edge of the rubber scraping plate and to pass over the rubber scraping plate.
In the technical scheme of the application, the gluing equipment mainly comprises the bearing tool and the gluing device, the bearing tool is used for bearing and positioning the product to be glued, and the gluing operation is carried out on the product to be glued through the gluing brush arranged on the gluing device, so that compared with the gluing modes such as a piezoelectric valve, a spray valve and the like, the gluing device has the advantages that the cost of gluing by adopting the gluing brush is lower, the coating area is larger, the required low-cost and high-efficiency gluing is realized, and the functional requirement of the application is met. On this basis, bear the frock with at least one movable setting in the gluey brush, in order to satisfy the gluey brush is relative bear the demand that the frock is movable, can be right bear a plurality of glues that wait to glue that bear on the frock and carry out the operation of gluing, satisfy the functional requirement.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and rear are referred to in the embodiments of the present invention), the directional indications are merely used to explain the relative positional relationship, movement conditions, and the like between the components in a specific posture, and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, if "and/or" and/or "are used throughout, the meaning includes three parallel schemes, for example," a and/or B "including a scheme, or B scheme, or a scheme where a and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
The prior product prime coating and gluing mode mainly adopts a piezoelectric valve and a spray valve to carry out glue outlet coating, and generally adopts a six-axis robot to carry out running path adjustment, so that the cost is higher, the piezoelectric valve and the spray valve generally need to coat products one by one, and the efficiency is lower for products with relatively low precision requirements. Therefore, there is a need for a glue coating process that can improve efficiency and reduce cost.
In view of this, the present application provides a glue spreading device, and referring to fig. 1 to 7, for an embodiment of the glue spreading device according to the present application, the glue spreading device will be described in detail with reference to the specific drawings.
Referring to fig. 1 to 7, the glue coating apparatus 100 includes a base 1, a carrying tool 2, and a glue brushing device 3, wherein the carrying tool 2 is disposed on the base 1 and is used for carrying a product to be glued, the glue brushing device 3 is disposed on the base 1, and the glue brushing device 3 has a glue brush 31 that can be disposed opposite to the carrying tool 2 from top to bottom, and at least one of the carrying tool 2 and the glue brush 31 is movably disposed, so that the glue brush 31 and the carrying tool 2 can be disposed opposite to each other in a vertical direction and a horizontal direction.
In the technical scheme of the application, the glue coating device 100 mainly comprises the bearing tool 2 and the glue brushing device 3, the product to be glued is borne and positioned by the bearing tool 2, and the glue brush 31 arranged on the glue brushing device 3 is used for coating glue on the product to be glued, so that compared with the glue coating modes such as a piezoelectric valve, a spray valve and the like, the glue coating cost is lower by adopting the glue brush 31, and the coating area is larger, so that the required low-cost high-efficiency glue coating is realized, and the functional requirement of the application is met. On this basis, bear frock 2 with at least one movable setting in the gluey brush 31, in order to satisfy gluey brush 31 is relative bear the demand that frock 2 is movable, can be right bear a plurality of glues that wait to glue that bear on the frock 2 carry out the operation of gluing, satisfy the functional requirement.
Specifically, referring to fig. 1to 3 and 7, the glue brushing device 3 includes a support 32, a mounting seat 33, a glue brush 31 and a glue outlet assembly 34, wherein the support 32 is mounted on the base 1, the mounting seat 33 is movably mounted on the support 32, the glue brush 31 is mounted on the mounting seat 33, and the glue outlet assembly 34 is mounted on the mounting seat 33 and has a glue outlet port, and the glue outlet port is disposed corresponding to the glue brush 31. It can be understood that the moving mode of the glue brush 31 may be various, for example, the glue brush 31 may be directly controlled by a robot to move in a three-dimensional space, so as to meet the requirement of moving the glue brush 31 relative to the carrying tool 2, but obviously, the glue brushing operation on the end surface of the carrying tool 2 has high functional redundancy cost, so in the application, the glue brushing device 3 is set in a form that the support frame 32 supports the mounting seat 33, the mounting seat 33 can move on the support frame 32, and the glue brush 31 is mounted on the mounting seat 33, so that the glue brush 31 can be movably arranged, and the structure is simple and the cost is low. In addition, the glue outlet assembly 34 may be configured to be connected to a glue storage structure independent of the glue spreading device 100 through a pipeline, and the mounting seat 33 may be configured to be fixed with the pipeline only by positioning, or may be configured to be mounted on the mounting seat 33 by using a conventional glue pipe, and be connected to an air pump for driving glue solution in the glue pipe to flow out, which is not particularly limited, so that the glue supplying of the glue brush 31 on the mounting seat 33 can be satisfied.
Further, the squeegee 31 is mounted to the mount 33 so that the position thereof in the horizontal direction can be adjusted. It will be appreciated that after the glue dispensing assembly 34 dispenses glue onto the glue brush 31, the glue on the glue brush 31 is accumulated after the glue dispensing assembly is used for a long time, which affects the precision of the glue dispensing of the glue brush 31, on the one hand, the glue on the glue brush 31 can be cleaned by adopting corresponding glue cleaning measures, but only the effective service time of the glue brush 31 can be prolonged, the above problem cannot be avoided, on the other hand, the glue brush 31 needs to be replaced after a certain time, and when the glue brush 31 is replaced, the brush head of the glue brush 31 after the replacement and the brush head of the glue brush 31 before the replacement are difficult to ensure to be positioned at the same position, and on the premise that the glue dispensing is performed by setting a fixed moving path, the brush head position of the glue brush 31 is changed to affect the precision of the glue dispensing, so in this embodiment, the glue brush 31 is set to be installed on the installation seat 33 in an adjustable manner in the horizontal direction. It should be noted that the reason why the height direction is not limited is that the height of the brush 31 is substantially uniform, and the height of the brush head can be secured after the brush is mounted to the mount 33. In addition, in the present embodiment, if the setting is based on the fact that the fixed moving path is provided on the glue brush 31, if the calibration mechanism is provided on the mounting base 33, for example, the brush head position of the glue brush 31 is detected by visual detection or the like, and when the brush head position is changed, and the moving path of the mounting base 33 can be adjusted, the glue brush 31 can ensure the glue brushing precision without being adjustably mounted on the mounting base 33, but obviously, the setting is relatively high in structural cost and control cost, and in this case, if the glue brush 31 is adjustably mounted on the mounting base 33, it can also have other beneficial effects, for example, the mounting and dismounting position of the glue brush 31 on the mounting base 33 can be adjusted, so that the staff operation is facilitated, and the specific setting is mainly based on actual requirements, and is not particularly limited herein.
In addition, the adjusting standard after replacing the rubber brush 31 may be various, which can ensure that the rubber brush 31 still moves accurately according to the preset path after replacement, for example, a positioning structure may be disposed on the mounting seat 33 to position the rubber brush 31, so that the rubber brush 31 may be stably located at a fixed position on the mounting seat 33, thereby ensuring the stability of the mounting fixed point of the rubber brush 31 and further ensuring the accuracy of the moving path thereof. However, this arrangement cannot exclude that the position of the mounting base 33 on the supporting frame 32 is affected when the brush 31 is replaced, and thus the movement path of the brush 31 is finally deviated due to the positional deviation of the mounting base 33. Therefore, in this embodiment, a calibration point is set on the carrier tool 2, when the glue brush 31 is installed for the first time, the glue brush 31 is moved to the calibration point to calibrate, so that the calibration point is set as a reference point for the movement of the glue brush 31, and the movement of the mounting base 33 on the support frame 32 is all referenced to the reference point, so that when the glue brush 31 needs to be replaced, the mounting base 33 is moved to the reference point only after the glue brush 31 is replaced, and at this time, if the glue brush 31 has an offset, the position of the glue brush 31 is adjusted on the mounting base 33, so that the glue brush 31 corresponds to the reference point, and the thus the set reference point of the mounting base 33 is ensured to be consistent with the position of the actual glue brush 31 relative to the carrier tool 2, so that when the mounting base 33 moves along a preset path, the glue brush 31 is ensured to move along the preset path, so that the movement accuracy of the glue brush 31 is ensured. In this setting mode, even if the mount pad 33 is offset on the support frame 32, the accuracy of the movement of the glue brush 31 can be guaranteed, that is, the glue brush 31 and the calibration point set on the bearing tool 2 can be aligned, even if the mount pad 33 is offset, when the mount pad 33 moves along a preset path, the glue brush 31 can also move along the preset path, the middle alignment link is reduced, the alignment operation is simplified, and the use is convenient.
Specifically, a first mounting portion 331 is movably disposed on the mounting base 33, a first adjusting member 332 is disposed between the mounting base 33 and the first mounting portion 331, the first adjusting member 332 is configured to drive the first mounting portion 331 to move in a first horizontal direction relative to the mounting base 33, a second mounting portion 333 is movably disposed on the first mounting portion 331, a second adjusting member 334 is disposed between the second mounting portion 333 and the first mounting portion 331, the second adjusting member 334 is configured to drive the second mounting portion 333 to move in a second horizontal direction relative to the first mounting portion 331, and the adhesive brush 31 is mounted on the second mounting portion 333. The manner in which the rubber brush 31 may be movably mounted on the mounting seat 33 in the horizontal direction may be various, including, but not limited to, setting a moving seat on the mounting seat 33, where the moving seat is configured to control the moving seat to move in multiple directions in the horizontal direction through multiple traction and/or pushing structures annularly arranged on the moving seat, but obviously, the structure is relatively complex and has high cost. Therefore, in the present embodiment, the movement of the glue brush 31 in the horizontal direction is split into a first movement in the horizontal direction and a second movement in the horizontal direction, and further, the first mounting portion 331 is disposed on the mounting base 33, the first mounting portion 331 is driven by the first adjusting member 332 to move in the first horizontal direction, the first mounting portion 331 is provided with the second mounting portion 333, and the second mounting portion 333 is driven by the second adjusting member 334 to move in the second horizontal direction, and meanwhile, the glue brush 31 is mounted on the second mounting portion 333, so that the movement of the glue brush 31 in the horizontal direction is realized through the movement combination of the first mounting portion 331 and the second mounting portion 333, and the structure is simple, the control cost is low.
Further, the first adjusting member 332 includes a first screw, the mounting base 33 is provided with a first accommodating groove 335, the first mounting portion 331 extends into the first accommodating groove 335 at least partially, the first adjusting member 332 includes a first screw penetrating the mounting base 33, the first screw extends into the first accommodating groove 335 to cooperate with the first mounting portion 331 to drive the first mounting portion 331 to move along a first horizontal direction, the second adjusting member 334 includes a second screw, the first mounting portion 331 is provided with a second accommodating groove 331a, the second mounting portion 333 extends into the second accommodating groove 331a at least partially, the second adjusting member 334 includes a second screw penetrating the first mounting portion 331, the second screw extends into the second accommodating groove 331a, To cooperate with the second mounting portion 333 to drive the second mounting portion 333 to move in a second horizontal direction. The driving manners of the first adjusting member 332 and the first mounting portion 331 and the driving manners of the second adjusting member 334 and the second mounting portion 333 may be various, including but not limited to driving a sliding rail, pushing or pulling a member, and driving the first adjusting member 332 to move along a first horizontal direction, and the second adjusting member 334 to drive the second mounting portion 333 to move along a second horizontal direction. In this embodiment, the first adjusting member 332 is configured as the first screw, the second adjusting member 334 is configured as the second screw, so that the first screw is screwed with the first mounting portion 331, so that the first screw rotates to drive the first mounting portion 331 to move, and similarly, the second screw is screwed with the second mounting portion 333, so that the second screw rotates to drive the second mounting portion 333 to move, so that the movement is stable, and the locking positioning function is provided. on this basis, the first screw rod rotates to drive the first installation portion 331 to move and the second screw rod rotates to drive the second installation portion 333 to move, so that a supporting point is required, in this embodiment, the first accommodation groove 335 is formed in the installation seat 33, the first installation portion 331 at least partially stretches into the first accommodation groove 335, the first screw rod penetrates through the installation seat 33 and then is in threaded connection with the first installation portion 331, so that the installation seat 33 serves as a supporting point of the first screw rod, the first installation portion 331 is driven to move in a first horizontal direction relative to the installation seat 33, similarly, the second accommodation groove 331a is formed in the first installation portion 331, the second installation portion 333 at least partially stretches into the second accommodation groove 331a, and then the second screw rod penetrates through the first installation portion 331 and then is in threaded connection with the second installation portion 333, so that the first installation portion 331 serves as a supporting point of the second screw rod, and the overall size of the second installation portion 331 is reduced, and the overall size of the second installation structure is reduced.
In addition, referring to fig. 4 to 6, the carrying tool 2 includes a main body 21 and a doctor blade 22, wherein a carrying area 211 is disposed on the main body 21, the carrying area 211 is used for carrying a product to be glued, and the doctor blade 22 is disposed on the main body 21 and located at one side of the carrying area 211. The application mainly adopts the glue brush 31 to carry out the glue coating operation on the product to be glued, and the glue solution on the glue brush 31 is cleaned so as to prolong the service life of the glue brush 31, and the glue solution coating precision is improved. Here, in order to ensure the automation of the glue coating apparatus 100, the present embodiment uses the glue scraping plate 22 to clean the glue brush 31, specifically, the glue scraping plate 22 is disposed on one side of the carrying area 211 of the carrying tool 2, before the glue brush 31 brushes glue, or after a group of products brush glue is completed, the glue brush 31 is controlled to move to the glue scraping plate 22, and to abut against the top edge on one side of the glue scraping plate 22, and then the glue brush 31 is controlled to move to the other side of the glue scraping plate 22, so that the glue solution on the glue brush 31 is scraped by the glue scraping plate 22, with simple structure, low cost and strong practicability.
In addition, a liquid receiving groove 212 is formed on the main body 21 at a position corresponding to the bearing area 211. The glue brush 31 is used for brushing and coating in a glue overflow processing manner, that is, an excessive glue solution is generated during processing, and in order to control the flow direction of the excessive glue solution, the carrying area 211 of the carrying tool 2 is provided with the liquid receiving groove 212 in this embodiment, on one hand, the excessive glue solution coated on the surface of the product to be coated is received, on the other hand, the glue solution scraped off by the glue scraping plate 22 is received, so that the glue solution can be recycled while pollution of the glue solution is reduced.
Further, the carrying area 211 is configured to carry a tray with a product to be glued, and a positioning structure is disposed in the carrying area 211, and the positioning structure is configured to position the tray. It can be appreciated that the carrying area 211 may be used for directly carrying the product to be glued, but the glue brush 31 is used for coating a plurality of products to be glued in a synchronous manner, the products to be glued are placed one by one on the carrying tool 2 and are taken down one by one after gluing, which is obviously complicated, meanwhile, in order to meet the requirements of other process steps, the carrying tool 2 is set to be used for carrying a tray with the product to be glued, and the tray carries the products to be glued, so as to solve the problem of complicated taking and placing, and meanwhile, the tray is compatible with the feeding and discharging requirements of other process steps, so that the carrying tool has more versatility. On this basis, it is required to ensure the accurate positioning of the tray in the bearing area 211, so in this embodiment, the positioning structure is disposed in the bearing area 211 for positioning the tray, and in particular, the positioning structure is set as the positioning column 213, which has a simple structure, low cost and good effect.
In addition, a calibration mechanism is arranged on the scraping plate 22 and is used for aligning and calibrating the relative position between the bearing tool 2 and the glue brushing device 3 with the glue brush 31. The positioning calibration of the glue brush 31 and the carrying tool 2 has been described above, and will not be further described herein, in order to meet the positioning calibration function requirement, in this embodiment, the calibration mechanism is disposed on the glue scraping plate 22, so that the calibration mechanism is used as a reference point, when the glue brush 31 is positioned at the calibration mechanism, the origin of the glue brush 31 is calibrated, and when the calibration mechanism is used as a reference to set a moving path, the glue brush 31 can move along the moving path accurately, thereby guaranteeing the glue brushing quality. Specifically, the alignment mechanism is disposed to be protruded on the alignment post 23 of the doctor blade 22, which has a simple structure and low cost, and realizes the alignment of the brush 31 and the alignment post 23 through observation by human eyes.
In addition, the carrying area 211 is used for carrying a tray with a product to be glued, and a detecting mechanism 24 is further disposed in the carrying area 211, and the detecting mechanism 24 is used for detecting the tray. When the glue spreading device 100 needs to operate automatically, besides ensuring the stability of the moving path of the glue brush 31 and the stability of the glue discharging on the glue brush 31, the accuracy of the placement position of the product to be glued is also ensured, so in this embodiment, the detection mechanism 24 is further disposed in the carrying area 211, so that the tray is detected by the detection mechanism 24, and whether the tray is placed in place is determined, so as to indirectly reflect the accuracy of the placement position of the product to be glued.
In addition, the carrying tool 2 may be movably disposed on the base 1 along a second horizontal direction, and the brush 31 may be movably disposed on the base 1 along a first horizontal direction and the up-down direction. The carrying tool 2 and the glue brush 31 should have a relative movement in a three-dimensional direction in space, so as to ensure that the glue brush 31 is horizontally coated on the carrying tool 2 and is dodged in the up-down direction, the relative movement mode between the carrying tool 2 and the glue brush 31 is described to a certain extent, namely, the robot can complete the movement in the three-dimensional direction in space, but the cost is obviously higher, so that the carrying tool 2 and the glue brush 31 are decomposed in the relative movement direction, namely, the carrying tool 2 is also arranged to be in a movable structure, so that the relative movement of the carrying tool 2 and the glue brush 31 in the second horizontal direction is met, the glue brush 31 only needs to be movably arranged in the base 1 along the first horizontal direction and the up-down direction, the structure is simplified, and the structure cost is reduced.
Referring to fig. 8, the present application further provides a gluing method of the gluing device 100, wherein the gluing method of the gluing device 100 includes the following steps:
S100, placing a material tray carrying a product to be glued on the carrying tool 2;
And 200, starting the gluing equipment 100 to enable at least one of the bearing tool 2 and the glue brush 31 to move, so that the glue brush 31 glues a plurality of products to be glued on a material tray along a preset path.
Compared with the conventional way of coating by using a piezoelectric valve or a spray valve, the application mainly provides a coating method for coating by using the brush 31, so that the cost is reduced, and the coating products are adjusted to be coated with a plurality of products at one time, so that the efficiency is improved, and the functional requirements of the application are met. The specific steps are that after the material tray is placed on the bearing tool 2, the gluing equipment 100 is started, and relative movement exists between the bearing tool 2 and the glue brush 31, so that the glue brush 31 can move on the material tray according to a preset coating track, and the glue coating operation of products on the material tray is completed.
Further, the carrying tool 2 includes a main body 21 and a doctor blade 22, the main body 21 is provided with a carrying area 211, the carrying area 211 is used for carrying a product to be glued, and the doctor blade 22 is disposed on the main body 21 and is located at one side of the carrying area 211;
After said step S200, the method further comprises the steps of:
And S300, controlling the rubber brush 31 to move to the edge of the scraping plate 22 and to pass over the scraping plate 22.
In order to solve the above-mentioned problems, the present application sets the scraping plate 22 on the carrying tool 2, so as to scrape the glue solution on the glue brush 31 by controlling the glue brush 31 to prop against and pass over the scraping plate 22, thereby realizing automatic glue removal, ensuring the efficiency of the glue coating device 100, and the scraping plate 22 has low structural cost and good use effect.
The foregoing description is only exemplary embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the description of the present invention and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the present invention.