JP2012179863A - Automatic wallpaper pasting machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To secure high dimensional accuracy while reducing weight in an automatic wallpaper pasting machine.SOLUTION: In the automatic wallpaper pasting machine that pastes a wall sheet to a back face of a sheet-like wallpaper material by operation of a plurality of rollers including a pasting roller and a doctor roller, a pair of frame side plates that pivotally support the plurality of rollers at both sides ends have a roller shaft fulcrum plate and an outer side resin cover part respectively. The roller shaft fulcrum part is composed of a complex integration of a resin part 13a at the roller facing surface side and a metal frame 14a. In the metal frame 14a, a flesh part and a lightening hole to maintain are dimensional accuracy between shaft fulcrum holes are provided together with the plurality of shaft fulcrum holes of rollers and the shaft fulcrum holes of driving transmission gears.

Description

  The present invention relates to an automatic wallpaper pasting machine.

  2. Description of the Related Art Conventionally, there is known an automatic gluing machine that automatically applies a predetermined amount of glue to a wall covering (cross), that is, a back surface of wallpaper. For example, FIG. 1 shows an example of the appearance of an automatic gluing machine. In general, for example, a main body A with a built-in glue box, a leg B that supports the main body A, and a base on the rear side of the main body A are provided. The wallpaper roll C is rotatably supported, and the glued wallpaper receiver D is disposed on the front side of the main body A.

  The wallpaper sent from the wallpaper roll C is glued to the back surface of the main body A and guided to the glued wallpaper receiver D as indicated by the arrow in the figure.

  In the main body portion A, a pair of frame side plate portions E1 and E2 for rotatably supporting a plurality of rollers for gluing at both end portions thereof are provided, and one of the frame side plate portions E2 includes A driving unit F including a motor for driving the roller via a transmission gear or the like is disposed. In addition, in the main body A, there is an example in which a display / operation panel unit G for displaying the measurement result of the wallpaper or controlling the drive of the motor is provided. In the example of FIG. 1, the display / operation panel unit G and the drive unit F form a detachable box form.

  As shown schematically in FIG. 2 as viewed from the frame side plate E2 side, the main body A is usually a delivery roller 1, a measuring roller 2, a high tension roller 3, a gluing roller 4, and a doctor roller 5. , A glue raising roller 6, a pear roller 7, a presser roller 8, a glue box 9 and a glue box receptacle 10.

  The plurality of rollers as described above are pivotally supported by the frame side plate portions E1 and E2. The frame side plate portions E1 and E2 are, for example, as shown by an arrow J in FIG. The upper lid portion that pivotally supports the tension roller 3 and the presser roller 8 is openable and closable. Here, the wallpaper H to be glued is squeezed by the two rubber rollers of the feeding roller 1 and the measuring roller 2, drawn out from the wallpaper roll C, and fed into the main body A. The measuring roller 2 is pressed against the surface of the wallpaper H, rotates in one direction according to the feeding direction of the wallpaper H, and can measure the length of the wallpaper H fed by the amount of rotation.

  The glue adhering to the outer periphery of the glue roller 4 by the rotation of the glue roller 4 in the direction of the arrow is transferred to the back surface of the wallpaper H and glued. In that case, the thickness of the glue transferred to the back surface of the wallpaper H is adjusted by adjusting the distance between the doctor roller 5 and the glue roller 4. The glue is stored in a glue box 9 provided at the lower part of the main body A, and is transferred to the glue roller 4 by the rotation of the glue raising roller 6.

  The glue transferred to the back surface of the wallpaper H is leveled by the glue roller 7. The high tension roller 3 and the presser roller 8 apply a force from above to the surface of the wallpaper H, thereby making the paste uniform and transporting the wallpaper H smoothly.

  In addition, a slitter is detachably provided in the gluing machine as needed, and it is possible to cut the ears of the wallpaper H or cut it to a desired width for pattern matching with this slitter. It is said that.

  Gluing to the back surface of the wallpaper H in the main body A is enabled by rotating the gluing roller 4 and the like as described above by transmitting the rotation of the motor arranged in the driving unit F through a gear.

  Gluing to the back surface of the wallpaper H in the main part A is made possible by the cooperation of a plurality of rollers as described above. Design, processing assembly, adjustment, and maintenance for realizing uniform pasting and transfer of a predetermined amount of glue with high accuracy have extremely important significance. In addition, since gluing machines are generally used in construction sites, homes for expansion and reconstruction, and used by contractors, they ensure and improve transportability, convenience, and stability of performance. Is an important issue.

  Conventionally, the need for weight reduction has been recognized as a point related to such problems. Especially in construction sites where there is no automatic transport means such as an elevator, the wallpaper contractor may go up and down to the site with a gluing machine in hand. There was a need to reduce the weight of the machine. As a countermeasure for this weight reduction, the metal side frame plate made of aluminum or the like that has pivotally supported both side ends of the plurality of rollers in the frame side plate portions E1 and E2 has been replaced with an engineering plastic one. It has also been proposed to do (Patent Document 1).

  Such a frame side plate portion E1, E2 is characterized in that the replacement from metal to resin is proposed from the viewpoints of weight reduction, workability, maintainability, and vibration suppression during operation.

Japanese Utility Model Publication No. 5-58400

  However, as for the frame side plate portions E1 and E2, a frame side plate that supports a plurality of rollers as in the above-described proposal using a resin is not currently sold as an actual machine. The reason for this is that it is difficult to enable a uniform and predetermined amount of gluing by pivotally supporting a plurality of rollers and cooperating with high accuracy. For example, the position (distance) between the centers of the holes for supporting the glue roller 4 and the doctor roller 5 is required to have an accuracy of 1/100 mm, but this accuracy can be achieved by molding and assembling the resin. It is difficult to ensure, and the resin material cannot maintain accuracy because its size expansion and contraction due to thermal expansion is larger than that of the metal material. Depending on the conditions in which the contractor is transported to or stored at the site, for example, it can be immediately assumed how large the dimensional difference will be even when the vehicle is still mounted on the vehicle, even at temperatures below 0 ° C in winter and temperatures around 60 ° C in summer. The

  For this reason, it can be said that it was not easy and it was very difficult to substitute by resin like the said proposal.

  Therefore, in the conventional automatic gluing machine, the frame side plate portion for pivotally supporting a plurality of rollers is still made of metal. Even if a resin is used in a small part, it is limited to a cover that does not require the accuracy as described above.

  However, the conventional metal frame side plate portion has not only realized the measures for weight reduction, but also has the following problems.

  That is, first of all, painting is absolutely necessary in the case of a metal such as an aluminum die-casting frame, but there is a concern about the occurrence of component malfunctions due to poor film thickness, scratches or peeling of the painted surface, contamination with foreign matter, etc. Is Rukoto. For example, it is considered that the coating cannot be fit as designed due to the thick coating, the rotation of the roller is deteriorated, and the parts do not fit as prescribed.

  In addition, it is not always easy to paint with good design quality at low cost.

  Furthermore, in the conventional automatic gluing machine, a speed control circuit of a system generally called an inverter is adopted in the control unit related to the motor drive, and switching is performed at a high frequency to generate an arbitrary alternating current. Although it is not dangerous, a small amount of electricity leaks, and it is transmitted to the left and right frame side plates and multiple rollers. Therefore, until now, a ground wire is connected so that it is not transmitted to the human body.

  However, there are cases where the ground is not connected when the contractor installs wallpaper on a wooden house or the like. In such a case, an electric potential is generated in the metal frame side plate and the plurality of rollers, and this is transmitted to the glue attached to the back surface of the wallpaper. For this reason, although it is not dangerous to the human body, there is a concern that when a contractor grasps the leading edge of the wallpaper or the like with a finger, a sensitive person feels tingling and becomes uncomfortable.

  In view of the above circumstances, the present invention eliminates the problems in the conventional automatic gluing machine, enables weight reduction, particularly weight reduction for the frame side plate portion, and a plurality of rollers. It is an object to secure dimensional accuracy that enables smooth cooperation by pivoting.

  Another object of the present invention is to solve problems associated with painting in the conventional metal frame side plate portion and problems of electric leakage when grounding is not performed.

  The automatic gluing machine of the present invention is characterized by the following in order to solve the above problems.

  <1> A pair of frame side plates that pivotally support the plurality of rollers at both end portions in an automatic wallpaper pasting machine that glues the back surface of the sheet-like wallpaper material by operation of a plurality of rollers including a glue roller and a doctor roller. Part, each of which has a roller shaft support plate portion and an outer resin cover portion, the roller shaft support plate portion is constituted by a composite integration of the resin portion on the roller facing surface side and the metal frame, The metal frame is provided with a shaft portion of the plurality of rollers and a shaft support hole portion of the drive transmission gear, and a meat portion and a hollow hole portion that maintain dimensional accuracy between the shaft support hole portions.

  <2> The meat portion is provided with ribs.

  <3> A meat portion is provided between the center of the shaft support hole portion of the gluing roller and the center of the shaft support hole portion of the doctor roller, and no meat hole portion.

  <4> A resin plate-like body and a metal frame are combined and integrated by fastening to form a frame side plate portion.

  <5> A frame side plate portion that is combined and integrated as a resin integrated molded product with a metal frame is configured.

  <6> The bearing portion of each shaft support hole portion of the glue roller, the doctor roller, and the pear roller together with the paste box holder and the glue raising roller in the metal frame has an insulating structure made of resin.

  <7> In any one of the above automatic wallpaper pasting machines, the feed roller, the measuring roller, the high tension roller, and the press roller that are provided are made of a metal frame by a bearing portion made of metal or conductive resin. The structure is such that static electricity that is supported by the shaft support hole and charged by the roller is released to the commercial power supply via the surge absorbing element.

  According to the present invention, the problems in the conventional automatic gluing machine are solved, and it is possible to reduce the weight, particularly for the frame side plate portion, and to smoothly support by supporting a plurality of rollers. It is possible to ensure high dimensional accuracy that enables

  In addition, it is possible to solve problems associated with painting in the conventional metal frame side plate portion and problems of electric leakage when not connected to ground.

It is the external view which showed an example of the automatic wallpaper pasting machine. It is the cross-sectional schematic diagram which illustrated the arrangement | positioning of several rollers, and the process of gluing. It is the front view which illustrated the roller shaft support plate part by the side of a drive. It is the front view which illustrated the roller shaft support plate part of the driven side. It is the perspective view which illustrated the resin part which comprises the roller axis | shaft support plate part of FIG. FIG. 6 is a perspective view illustrating a metal frame corresponding to FIG. 5. It is the photograph which showed the built-in external appearance of FIG. It is the photograph figure which showed the external appearance of the back side of FIG. It is the photograph figure which showed the built-in external appearance of FIG. It is the front view which illustrated the roller shaft support plate part by the side of a drive as an insert molded article. It is the front view illustrated about the driven side corresponding to FIG. It is the block schematic diagram illustrated about the structure of insulation.

  In the present invention, for example, an automatic wallpaper pasting machine for pasting on the back surface of a sheet-like wallpaper by the operation of a plurality of rollers including a pasting roller and a doctor roller as illustrated in FIGS. 1 and 2 is an object. .

  Of course, as shown in FIG. 1, the display / operation unit G and the drive unit F may be detachable in the form of a box, or may have various other conventional forms. .

  In the automatic wallpaper pasting machine of the present invention, for example, in a pair of frame side plate portions E1 and E2 as shown in FIG. 1 in which a plurality of rollers illustrated in FIG. And the resin cover portions 12a and 12b, and each roller shaft support plate portion 11a and 11b is formed by a composite integration of the resin portion on the roller facing surface side and the metal frame.

  3 and 4 are front views illustrating each of the roller shaft support portions 11a and 11b that are combined and integrated. In this example, there is a drive unit on the frame side plate E1 opposite to the arrangement of the motor drive unit F in FIG. 1, the roller shaft support unit 11a is on the drive side, and the roller shaft support unit 11b is on the driven side. is doing.

  In the roller shaft support portions 11a and 11b illustrated in FIGS. 3 and 4, the resin portions (the back side in the drawing) 13a and 13b on the roller facing surface side and the metal frames (the surface side in the drawing) 14a and 14b are provided. Each plate-like body is fastened by screwing and integrated with each other. FIG. 5 and FIG. 6 show examples of the plate-like body for composite integration in the case of the roller shaft support portion 11a on the driving side in FIG.

  In any case, the roller shaft support portion below the frame side portion E1 excluding the upper lid portion is illustrated.

  FIG. 5 shows the resin portion 13a, and the back surface, that is, the arrow direction in the figure faces the roller. The plate-like resin portion 13a has holes 15a and 15b for supporting the roller shaft. The hole 15a is for a glue roller, and the hole 15b is for a doctor roller. FIG. 6 shows the metal frame 14a. The metal frame 14a is provided with a meat portion 16 and a protruding rib 17 provided on the metal portion 14 and a meat hole 18 as a gap. Further, holes 19a and 19b for roller shaft support are provided. The hole 19a is for a glue roller bearing, and the hole 19b is for a doctor roller bearing.

  Further, the metal frame 14a is also provided with a shaft support hole 20 of a drive transmission gear for rotating a glued roller or the like.

  The roller shaft support portion 11a in which the resin portion 13a and the metal frame portion 14a illustrated in FIG. 5 and FIG. 6 are combined and integrated by screw fastening is illustrated as an example of an assembled state in an automatic wallpaper pasting machine. It is an appearance photograph. As can be seen in FIG. 7, the resin portion 13a is exposed in the lightening hole portion 18 of the metal frame 14a. Further, as shown in FIG. 8, the resin portion 13a is disposed on the surface side facing the roller.

  FIG. 9 is a photograph illustrating the appearance of the driven roller shaft support portion 11b illustrated in FIG. 4 as being incorporated into an automatic wallpaper pasting machine. Similarly to the above, it can be seen that the resin portion 13b is exposed in the lightening hole portion 18 of the metal frame 14b.

  By replacing the conventional metal parts such as aluminum with the roller shaft support part by combining the resin part and metal frame, the amount of metal used (thickness and / or area) can be greatly reduced. It is possible to greatly reduce the weight. In that case, it becomes possible to provide the above-mentioned lightening hole part, and the weight reduction effect becomes much more remarkable.

  In the automatic wallpaper pasting machine according to the present invention, the dimensional accuracy is ensured so that the cooperation of the plurality of rollers is performed smoothly and stably. That is, in the metal frame, the meat portion 16 and the lightening hole portion 18 are provided so as to maintain the dimensional accuracy between the shaft support hole portions of the plurality of rollers, and ribs 17 for reinforcement are appropriately provided in the meat portion 16. Is also provided.

  For example, as illustrated in FIG. 6 and FIG. 3, there is no meat between the center of the hole 19 a for the axis support of the glue roller and the center of the hole 19 b for the axis support of the doctor roller. It is considered that it is preferable that only the meat portion 16 is provided without the punched hole portion 18 and is further reinforced by the rib 17. As a result, a level of 1/100 mm is ensured as the positional dimension accuracy between the centers. This means that when the automatic wallpaper pasting machine is used, it is stably maintained even if the temperature during transportation or storage changes greatly.

  Similarly, the portion between the center of the hole 19a for the shaft support of the glue roller and the center of the shaft support hole 20 for the drive transmission gear is constituted by the meat portion 16 or only the meat portion 16 and the rib 17. Is desirable.

  A meat part and a meat emptying part are arrange | positioned as what secures high dimensional accuracy with weight reduction. Further, the arrangement of ribs on the meat part is the same. In that case, of course, the types of materials of the resin part and the metal frame, characteristics such as strength, formability, process assemblability, maintainability, and the like are taken into consideration. Regarding ribs, it is practically considered to leave them as hot water passages during die casting.

  As various forms, according to the present invention, the weight can be reduced by 30% or more, further 40% or more by weight compared to the case of metal.

  Note that ABS, polyacetal and the like are generally considered as the resin material, and aluminum, magnesium, and alloys thereof are generally considered as the metal material.

  In the example shown in FIG. 3 to FIG. 9, composite integration of the resin part and the metal frame as separate bodies by screw fastening is realized, but according to such a form, manufacturing as each member Molding is relatively easy and assembly is not difficult. In addition, a structure capable of absorbing the difference in coefficient of thermal expansion between the resin portion and the metal frame can be obtained. Further, since the resin and the metal can be completely separated, recycling is easy.

  Further, since only the resin portions 13a and 13b are exposed on the outer surface of the frame side plate portions E1 and E2 together with the resin covers 12a and 12b, the design properties by the color tone and the like are changed by replacing only the resin portions. It is also easy to improve. Of course, the fastening may be performed by various means other than screwing.

  In addition to fastening by screwing a separate part, composite integration may be realized in various ways. For example, a method such as insert molding, in which a metal frame molded by die casting or the like is used for resin molding thereon, is considered. FIGS. 10 and 11 illustrate roller shaft support portions 11a and 11b configured by insert molding corresponding to FIGS. 3 and 4. Projected blocks made of the resin portions 13a and 13b are formed in the lightening hole portions 18 of the metal frames 14a and 14b, and the integration is further achieved to further improve the strength.

  For this reason, reduction of metal use is further possible.

  In any of the methods and means, since the outer surfaces of the frame side plate portions E1 and E2 in the present invention are made of resin, there is no concern about the occurrence of inconvenience due to painting in the case of a conventional metal. In addition, it is easy to realize a high-quality feeling and a change in toning by using a resin at a relatively low cost.

  The basic configuration of the automatic wallpaper pasting machine is also premised on the configuration shown in FIGS. 1 and 2, for example, in the present invention. This configuration is roughly classified into a driving / control unit that drives the gluing machine and controls the whole, and an operation unit that includes a plurality of rollers, a frame side plate that pivotally supports the roller, and a glue box. The drive / control section includes a motor, a motor control section, a display operation section, and a main calculation section.

  In addition, the operation unit includes a group of rollers that do not come into contact with the glue, such as the above-described feed roller, measuring roller, high tension roller, and presser roller, and a glue roller, a doctor roller, and a glue raising roller. , And a group of rollers called glue rollers that come in contact with glue, and further a glue box.

  In such a configuration, the drive / control unit has a small amount of electric leakage that is not dangerous to the human body as the motor is driven / controlled.

  Normally, as a countermeasure against this electric leakage, a ground wire is connected to the drive / control section so that it does not flow to the human body via the left and right frame side plates and rollers. However, there is a case where the ground wire is not connected to the ground, for example, when wallpaper is applied to a wooden house. Earth leakage does not conduct to the wallpaper itself. On the other hand, it is conducted to the glue attached to the back of the wallpaper. For this reason, no special measures are required for the roller group such as the feed roller and the measuring roller that do not interfere with the glue in the operating portion. On the other hand, in the roller group in contact with the glue, an electric potential is generated in the metal frame of the present invention in the frame side plate part and the roller pivotally supported by this, and this is transmitted to the glue. You may feel uncomfortable by touching the glue.

  Therefore, in the automatic wallpaper pasting machine of the present invention, as shown in FIG. 12, a metal frame is used for a group of rollers such as a doctor roller, a pasting roller, a pear roller, and a pasting roller that are in contact with the pasting. It is considered to have an insulating structure in relation to the frame side plate portion to be used.

  As a more specific form, for example, the bearing portion of the shaft support hole portion in the metal frame of the glue raising roller, the gluing roller, the doctor roller, and the pear roller has a resin such as an insulating resin bearing or bearing. It is preferable that the insulating configuration is adopted. Further, regarding the paste box, it is considered that the receiving member is made of resin (insulating).

  By adopting such an insulating structure, the construction worker is not uncomfortable even when the ground connection is not made.

  In addition, in the roller group which does not contact glue, a countermeasure against static electricity due to contact with wallpaper is separately considered. Static electricity is discharged when it reaches a certain voltage (about 5 kV or more), which may give a shock to the construction worker. Therefore, for example, for the feed roller, the measuring roller, the high tension roller, and the presser roller, the roller is supported on the shaft support hole portion of the metal frame of the present invention by a bearing portion made of metal or conductive resin, and these rollers are charged. As shown in FIG. 12, it is considered that it is preferable to have a configuration in which static electricity is released to a commercial power source via a surge absorbing element.

  Due to the measures against insulation and static electricity as described above, the workability and convenience can be improved even in the case of the present invention in which the frame side plate portion is constituted by the composite integration of the metal frame and the resin portion.

A Main body B Leg C Wallpaper roll D Glue wallpaper holder E1, E2 Frame side plate F Drive G Display / operation panel H Wallpaper 1 Feed roller 2 Measuring roller 3 High tension roller 4 Glue roller 5 Doctor roller 6 Glue Lift roller 7 Peel roller 8 Pressing roller 9 Glue box 10 Glue box receiver 11a, 11b Roller shaft support part 12a, 12b Resin cover part 13a, 13b Resin part 14a, 14b Metal frame 15a, 15b Hole part 16 Meat part 17 Rib 18 Meat removal Hole 19a, 19b Hole 20 Shaft support hole for drive transmission gear

Claims (7)

  In the automatic wallpaper pasting machine that glues the back surface of the sheet-like wallpaper material by the operation of a plurality of rollers including a gluing roller and a doctor roller, in the pair of frame side plates that pivotally support the plurality of rollers at both ends, Each of them has a roller shaft support plate portion and an outer resin cover portion, and the roller shaft support plate portion is constituted by a composite integration of the resin portion on the roller facing surface side and the metal frame, The automatic wallpaper is characterized in that a shaft supporting hole portion of a plurality of rollers and a shaft supporting hole portion of the drive transmission gear are provided with a meat portion and a hollow hole portion that maintain dimensional accuracy between the shaft supporting hole portions. Gluing machine.   2. The automatic wallpaper pasting machine according to claim 1, wherein ribs are provided on the meat portion.   3. A meat portion is provided between the center of the shaft support hole portion of the gluing roller and the shaft support hole portion center of the doctor roller, and no meat hole portion is provided. Automatic wallpaper pasting machine described in 1.   The automatic wallpaper pasting machine according to any one of claims 1 to 3, wherein a resin plate-like body and a metal frame are combined and integrated by fastening to form a frame side plate portion. .   The automatic wallpaper pasting machine according to any one of claims 1 to 3, wherein a frame side plate portion combined and integrated as a resin integrated molded product with a metal frame is configured.   It is an automatic wallpaper pasting machine as described in any one of Claims 1-5, Comprising: Each of a pasting roller, a doctor roller, and a pear roller together with the paste box holder and the pasting roller in a metal frame. An automatic gluing machine characterized in that the bearing part of the shaft support hole part has an insulating structure made of resin.   The automatic wallpaper pasting machine according to any one of claims 1 to 6, wherein the feeding roller, the measuring roller, the high tension roller, and the presser roller are provided with metal or conductive resin. An automatic wallpaper pasting machine characterized in that it is supported by a shaft bearing hole portion of a metal frame by a configured bearing portion and discharges static electricity charged on a roller to a commercial power supply via a surge absorbing element.