JP4553302B2 - Automatic wallpaper pasting machine and slitter for automatic wallpaper pasting machine - Google Patents

Description

  The present invention relates to an automatic wallpaper pasting machine that continuously applies glue to the back surface of a sheet-like wall covering material affixed to an indoor wall surface or the like, and in particular, the pulling load of the wall covering member inlet is constant. The present invention relates to a slitter set in a range and an automatic wallpaper pasting machine having the slitter.

  At present, wall coverings are applied to interior wall surfaces in the interior construction of buildings by applying glue continuously to sheet-like wall coverings (so-called “cross”) using a dedicated wallpaper glue machine on site. It has become common to do it. As such a wallpaper pasting machine, an automatic pasting machine has recently been widespread. In this automatic wallpaper pasting machine, the rotary shaft of a drive mechanism such as a motor is connected to the rotary shaft end of the glue roll, and the other rolls are interlocked via a gear by rotating the glue roll electrically. While the cloth is automatically conveyed by the rotation of these rolls, the glue is scooped up from the glue and applied to the back of the cloth.

  In such a conventional wallpaper pasting machine, usually the cloth is fed out from a roll roll that is pivotally supported on the rear side of the pasting machine main body, and via a tension bar that is bridged by a leg that supports the main body. Are transported and introduced into a slitter.

  However, in such a conventional wallpaper pasting machine, since the tension bar is pivotally supported at a leg part, that is, at a position obliquely below the slitter, the cloth is conveyed to the drawing port on the rear part of the pasting machine main body. When trying to do so, the cross may be wrinkled, bent, etc. before it is transported to the slitter. In this state, if the cross is cut by transporting to the slitter, the side edge of the cross There was a problem that it could not be cut well.

  In particular, an over cutter (upper blade) and an under cutter (lower blade) constituting a pair of upper and lower rotary blades are respectively positioned at opposite positions of the upper and lower shafts provided parallel to the direction perpendicular to the conveying direction of the cloth. In the case of a slitter that is clamped and cut by sandwiching a sheet-like cloth from which the pair of cutters are conveyed from above and below, when the cloth is loosened and conveyed to the pair of cutters, the cloth enters between the blades. In this case, a straight cut edge could not be obtained, and a gap (through) was sometimes generated in the cross joint during construction.

  Furthermore, as the pasting operation proceeds and the cloth is gradually fed out from the original roll, the number of turns of the original roll decreases accordingly, so that the weight of the original roll decreases. For this reason, the original fabric roll cannot fully resist the pulling force of the cloth into the main body, and the amount of axial rotation of the original fabric roll exceeds the amount of pulling in the cloth. For this reason, the cloth is unnecessarily drawn out from the raw roll, and the cloth is loosened to reduce the pulling load. Therefore, there arises a problem that wrinkles and deflection are generated in the cross being conveyed, and the cross meanders.

  In response to such problems, the present applicant has proposed a number of improvements to the wallpaper pasting machine. For example, a wallpaper pasting machine has been proposed in which a constant tension is applied to the cloth to prevent the cloth from wrinkling and bending and to prevent the cloth from meandering (see, for example, Patent Document 1). Further, a wallpaper pasting machine has been proposed that can press down the cloth from the surface side and prevent the cross from meandering and wrinkling (for example, see Patent Document 2).

JP2001-340795 JP2002002199A

  However, in these proposals, a force perpendicular to the cross surface is applied to the cross with respect to the cross conveyance direction. Specifically, the cross being conveyed is sandwiched from both sides to apply braking, and the cross is applied to the cross. A brake that consists of a pair of rod-like members that give a predetermined tension and an elastic member that urges them, and a brake that resists the pulling force of the cloth by pressing the raw roll from the outside with a plate-like member. The force perpendicular to the cross surface that is applied locally may result in problems such as scratches on the back of the cross, scratches on the cross surface, and damage to the cross itself.

  Also, when crossing the cloth along one or more bent points in the cross conveyance path from the cloth roll to the rear entrance of the pasting machine body, especially with thick hard cloth, In some cases, R is not drawn along the bent part, so that a large R is drawn, and a specific pull-in load is not obtained.

  The present invention has been made in view of such problems, and even if the number of turns of various fabric rolls such as a hard cloth, a soft cloth, a heavy cloth, and a light (thin) cloth is reduced, Prevents wrinkles, bending, etc. from occurring on the cloth, can be applied with good gluing, can reliably cut the side edge of the cloth, and in various cloths, especially hard cloths Another object of the present invention is to provide an automatic wallpaper pasting machine or a slitter for an automatic wallpaper pasting machine capable of cutting under optimum conditions.

The automatic wallpaper pasting machine according to the invention described in claim 1 is a glue paster main body for the wall covering cut while cutting both edges of the sheet-like wall covering fed out from the raw roll with a rotary blade. In an automatic wallpaper pasting machine that pulls into the inside from the pinch roll of the rear drawing port, applies glue to the back of the wall covering by the glued roll provided inside the main body and sends it to the front of the main body,
The pull-in load of the pull-in port is larger than 12.748645N (1.3 kg weight) when the weight of the original roll is not included, and smaller than the pull-in load where the pinch roll of the pull-in port slips when the weight of the original roll is included. Retraction load adjusting means to
As this pulling load adjustment means,
The wall covering is formed on the upstream side of the wall covering material conveyance of the rotary blade as a part of the conveying path of the wall covering material including one or more bent portions from the raw roll to the drawing port at the rear part of the pasting machine main body. A guide surface for guiding the material to the rotary blade;
The guide surface is provided with a curved surface portion formed on an upstream side edge and / or a downstream side edge portion of the guide surface, and a lifting prevention bar for bringing the wall covering material along the guide surface.

A slitter for an automatic wallpaper pasting machine according to the invention described in claim 2 draws in a sheet-like wall covering material fed from a raw roll from a pinch roll at a drawing port at the rear of the pasting machine body, It is attached to the rear part of an automatic wallpaper pasting machine that applies glue on the back surface of the wall covering material and feeds it to the front part of the wall covering material by a glued roll provided on the sheet, and cuts both edges of the sheet-like wall covering material that is pulled in. In the slitter for automatic wallpaper pasting machine,
The pull-in load of the pull-in port is larger than 12.748645N (1.3 kg weight) when the weight of the original roll is not included, and smaller than the pull-in load where the pinch roll of the pull-in port slips when the weight of the original roll is included. Retraction load adjusting means to
As this pulling load adjustment means,
The wall covering is formed on the upstream side of the wall covering material conveyance of the rotary blade as a part of the conveying path of the wall covering material including one or more bent portions from the raw roll to the drawing port at the rear part of the pasting machine main body. A guide surface for guiding the material to the rotary blade;
The guide surface is provided with a curved surface portion formed on an upstream side edge and / or a downstream side edge portion of the guide surface, and a lifting prevention bar for bringing the wall covering material along the guide surface.

The slitter for an automatic wallpaper pasting machine according to the invention described in claim 3 is a lift prevention bar for causing the wall covering material according to claim 2 to run along the guide surface.
A set of bar holding members arranged on both side ends of the guide surface and provided with a mounting portion for attaching a lifting prevention bar to one end portion, a fulcrum portion that pivotally supports the other end portion of each bar holding member, and the lifting prevention The wall covering material is pressed against the guide surface by a bar pressing means provided with an urging means for urging each bar holding member so that the bar is brought into contact with the contact position of the guide surface. It is.

The slitter for an automatic wallpaper pasting machine according to the invention described in claim 4 is used as a pull-in load adjusting means according to claim 2 or 3,
A guide surface that is formed on the upstream side of the wall covering material conveyance of the vertical rotary blade that is sandwiched and cut from the upper surface side and the lower surface side of the wall covering material, and guides the wall covering to the rotating blade;
A curved surface portion formed on the conveyance upstream end edge portion of the guide surface;
A lifting prevention bar for allowing the wall covering to follow the guide surface;
The inside angle of the conveyance path bent along the curved surface portion is 90 ° or less.

The slitter for an automatic wallpaper pasting machine according to the invention described in claim 5 is used as a pull-in load adjusting means according to claim 2 or 3,
A guide surface provided with a high-speed rotary blade for cutting from the upper surface or the lower surface side of the wall covering,
A curved surface portion formed at the conveyance upstream edge and the conveyance downstream edge of the guide surface;
The wall covering material is provided with a lifting prevention bar for bringing the wall covering material along the guide surface.

  In the present invention, as described above, even when the number of windings of the raw rolls of various crosses such as a hard cloth, a soft cloth, a heavy cloth, and a light (thin) cloth is reduced, wrinkles, bending, etc. occur in the cloth. Automatic wallpaper glue that can cut the edges of the cloth reliably, and can cut even under the most suitable conditions even on hard cloth. There is an effect that a slitter for a machine or an automatic wallpaper pasting machine can be obtained.

  In the present invention, in the automatic wallpaper pasting machine, when the pull-in load of the pull-in port does not include the weight of the original roll, it is larger than 12.748645N (1.3 kg weight) and includes the weight of the original roll. Because it has a pull-in load adjustment means that makes the pinch roll of the full width of the mouth smaller than the pull-in load that slips, even if the number of turns of the various fabric rolls decreases, wrinkles, deflections, etc. occur in the cross It is possible to prevent the occurrence of a problem and to perform a good gluing operation, and to reliably cut the cross side edge portion.

  Specifically, in the present invention, in an existing automatic wallpaper pasting machine, a phenomenon in which wrinkles are likely to occur as the number of turns of the cloth cloth decreases is analyzed. That is, it was verified how much pulling load is generated only with the attached tension bar with various cloths in a state in which the cloth is loosened. As a result, it was found that the soft cloth and the light and thin slippery cloth cannot prevent wrinkles from being generated only by the pulling load generated only by the tension bar attached to the existing automatic wallpaper pasting machine. On the other hand, the maximum allowable load of various crosses is surprisingly high, and even if the load is such that the full width pinch roll slips, it will not be damaged. It was found that if the weight was 15 kg or less, even a light and thin slippery cloth would not slip.

  From the above, the pull-in load of the pull-in port in the state in which the cloth fed from the raw roll is slackened is larger than that of the conventional automatic wallpaper pasting machine, and the pull-in pin that pulls in the pull-in port By making it smaller than the load, even if the number of rolls of the various cloth rolls decreases, it is possible to prevent the cloth from wrinkling, bending, etc., and to perform good gluing construction The cross side edge can be cut reliably with a slitter.

  Specifically, the pull-in load of the pull-in port is larger than 12.748645N (1.3 kg weight) when the weight of the raw fabric roll is not included, and the pinch roll at the pull-in port slips when the weight of the raw fabric roll is included. If it is made smaller than the pull-in load, unlike the existing automatic wallpaper pasting machine, even if the cloth fed out from the original roll is loosened, both edges are cut and wrinkled. In addition, there is no occurrence of bending or the like, and satisfactory gluing can be performed. In addition, there are various kinds of soft cloths that are prone to wrinkles and crosses that are slippery. In such cloths, it is preferably 16.671305N (1.7 kg weight) or more, and 147.09975N (15.0 kg weight). ) No wrinkle if below.

  Further, in the present invention, the wall of the rotary blade as a part of the conveyance path of the wall covering material including one or more bent portions from the raw fabric roll to the drawing port of the rear part of the pasting machine body as the load adjusting means. A guide surface that is formed on the upstream side of the conveyance of the material and guides the wall material to the rotary blade, a curved surface formed on the conveyance upstream side and / or the downstream edge of the guide surface, and the wall covering Since it is provided with a lifting prevention bar that runs along the guide surface, even a hard cloth can be cut under optimum conditions.

  As a concrete embodiment of the conveyance path of the wall covering material including one or more bent portions from the raw roll as the load adjusting means to the drawing port at the rear part of the pasting machine body, a wall covering material and a tension bar are included. Since the frictional force with each of the bent portions is determined in a fixed path and is distributed to each of the bent portions, good load adjustment is possible.

  In addition, the bending portion in the present invention is a member that abuts a part or the entire width of the wall covering material and bends the conveyance path of the cloth, including the tension bar and immediately before the conveyance downstream side provided in the slitter. The curved surface formed in the conveyance upstream edge part of the understay which comprises the guide surface of the wall covering conveyed toward a rotary blade is also included. In addition, the contact between the wall bending material and the member that bends the conveyance path of the wall covering material may be a sufficient pulling load even if the wall covering member does not have a full width but is partially in contact. For example, it is possible to use a bent portion with a notch in the center or an understay.

  In addition, the guide surface in the present invention refers to the upstream side of the wall blade material conveyance of the rotary blade in order to guide the wall material to the rotary blade and reduce the blurring of the cutting surface when the wall blade material is cut by the rotary blade. Specifically, it refers to a flat surface extending to the cutting point of the rotary blade or a surface having a gentle curvature along the conveying direction. The guide surface may be a continuous or discontinuous surface.

  The lifting prevention bar of the present invention may be any bar that prevents the wall covering material from lifting from the guide surface along each guide surface. For example, a non-rotatable round bar-like member similar to a conventional tension bar, a rotatable round bar-like member, and the like can be given. Further, the gap distance between the prevention bar and the guide surface only needs to be a distance that allows the thickest wall covering to pass through, and there may be means for changing the gap distance according to the thickness of the wall covering. Good.

  As a more preferable aspect of the lifting prevention bar of the present invention, a set of bar holding members provided with mounting portions that are arranged on both side ends of the guide surface and attach the lifting prevention bar to one end, and each of the bar holding members Wall mounting is provided by a bar pressing means including a fulcrum portion that pivotally supports the end portion, and an urging means that urges each bar holding member so as to bring the lifting prevention bar into contact with the contact position of the guide surface. The material is pressed against the guide surface. Thereby, even when a thick and hard wall covering is cut, the wall covering is not wrinkled or bent, and the wall covering does not meander.

  The load adjusting means of the present invention can be roughly divided into two types according to the form of the slitter part attached to the automatic wallpaper pasting machine or the rotary blade of the slitter separately attached to the automatic wallpaper pasting machine. . Specifically, it is provided with a vertical rotating blade that is sandwiched and cut from the upper surface side and the lower surface side of the wall covering material, and is provided with a high-speed rotating blade that is cut from the upper surface or the lower surface side of the wall covering material. .

  Therefore, as one preferred embodiment, the automatic wallpaper pasting machine of the present invention is formed on the wall covering material conveyance upstream side of the vertical rotating blade that is sandwiched and cut from the upper surface side and the lower surface side of the wall covering material. A guide surface that guides the material to the rotary blade, a curved surface portion formed at an edge portion on the upstream side of conveyance of the guide surface, and a lifting prevention bar that guides the wall covering material to the guide surface. The inner angle of the conveyance path bent along the line is 90 ° or less.

  That is, in the present invention, a curved surface portion formed on the upstream end edge portion of the guide surface which is formed on the upstream side of the wall blade material conveyance of the rotary blade and guides the wall material to the rotary blade, and along the curved surface portion. When the inner angle of the conveyance path bent along the curved surface portion is set to 90 ° or less by the tension bar that bends the conveyance path, the pull-in load does not include the weight of the original roll. It is larger than (1.3 kg weight) and smaller than the pulling load at which the full width pinch roll slips when the weight of the raw roll is included.

  The inner angle of the bent conveyance path of the present invention may be bent by 90 ° or more when viewed from the conveyance route of the cloth, and the inner angle of the bent portion may be 90 ° or less as a result, preferably 90 ° or less. What is necessary is just to provide one or more bending places which are 77 degrees or more, More preferably, it is 85 degrees or less 77 degrees or more.

  Moreover, as another preferable aspect, it forms in the guide surface which arrange | positioned the high-speed rotary blade cut | disconnected from the upper surface or lower surface side of wall covering material, and the conveyance upstream edge part and conveyance downstream edge part of this guide surface A curved surface portion and a lifting prevention bar for bringing the wall covering material along the guide surface.

  In addition, as a slitter unit attached to the automatic wallpaper pasting machine of the present invention or a slitter separately attached to the automatic wallpaper pasting machine, the double bearing plate, under stay, over stay, etc. constituting the exterior are composed of the same parts. May be.

Example 1. Measurement of pull-in load and maximum allowable load With respect to various crosses used in interior construction, the pull-in load was measured using a commercially available automatic wallpaper pasting machine. Moreover, the load when the pinch roll slipped was measured for each cross. The maximum allowable load is just before the load causing this slip. Furthermore, pasting was performed in a state in which the cloth cloth was loosened, and it was confirmed whether or not wrinkles were generated. Moreover, the shift | offset | difference after 4 m glueing at the time of mounting | wearing with the cross | deviated from the center position was measured.

  Specifically, as shown in Table 1, the cloth is (1) a hard cloth cloth, (2) a soft cloth cloth, (3) a heavy cloth with diatomaceous earth in the surface layer, and (4) a thin and light cloth. Adhesive paper (core sheet), (5) light and thick cloth made of foamed resin, and (6) general vinyl cloth were used. The width of each cross was all effective. As the automatic wallpaper pasting machine, machine A (trade name “TS Reserve RUN2001” (manufactured by Yayoi Chemical Co., Ltd.)) and machine B (trade name “Prime-SD” (manufactured by Kyokuto Sangyo Co., Ltd.)) were used.

  The pull-in load measures how much force is applied only with the attached tension bar in the state where each cloth original is loosened, so the cloth drawn from the cloth original is applied to the two attached tension bars. It was hung and only a spring was attached to one end. After loosening the cloth original fabric, one end was pulled through the spring from the vicinity of the inlet, and the force just before the loose cloth original was pulled was measured.

  The maximum allowable load is to measure the load when the full-width pinch roll slips, so that only a spring is attached to one end of the cross cut to a length of about 1 m, and the other end is glued. After loading the main body and driving the gluing machine, one end was gradually pulled only through the spring, and the load at which the pinch roll of the gluing machine main body slipped was measured. The maximum allowable load is just before the load causing this slip.

After setting the cloth on the gluing machine as usual, the wrinkles were subjected to 4 m gluing in a state where the cloth was always loosened to check whether wrinkles were generated. In addition, the meandering was measured after 4 m glue was attached when the cloth was mounted with the cloth shifted from the center position. The results are shown in Table 2 below. Note that the values of the pull-in load and the maximum allowable load both indicate kg weight, and when the force is expressed in SI units, the gravitational acceleration g (9.80665 m / s ² ) is applied to these values. The drawing load in parentheses is the load when the weight of the original roll is included (the load when the original roll is not slackened). The inability to measure the meander indicates that the amount of movement exceeds 20 mm.

  As shown in Table 2, it was found that the pull-in load by the existing tension bar differs depending on the type of cloth. In addition, it was found that the pulling load is often high with a heavy cloth or a hard cloth, and varies depending on the state of the surface in contact with the tension bar. Moreover, as the cloth which is easy to generate wrinkles, the soft cloth made of vinyl (soft) and the foamed resin is overwhelming, and these cloths generate wrinkles even if the pulling load exceeds 1 kg weight. There was also a thing. The pull-in load of the existing tension bar of the commercially available automatic wallpaper pasting machine was 1.3 kg weight.

  It was also found that there was a difference in the maximum allowable load depending on the type of cloth. However, the maximum allowable load is unexpectedly high, and if it is 15 kg or less in all crosses, there will be no slip, and there will be no crosses torn before slipping. It turns out that there is no. That is, it has been found that there is no problem even if the pulling load in the existing automatic wallpaper pasting machine is greatly increased. Since there is no load exceeding 6.5kg weight even when the raw fabric roll is not slackened, it can be adequately handled even if a pulling load more than double the current load is generated at the pulling port of the gluing machine. I understood.

  From the above, the cloth drawn out from the roll is loosened so that the pull-in load of the draw-in port without including the weight of the roll is larger than that of the conventional automatic wallpaper pasting machine, Even if the number of turns of the various fabric rolls is reduced by making it smaller than the pull-in load at which the pinch roll of the pull-in port slips in the state including the weight of the anti-roll, wrinkles, bending, etc. occur in the cross. This can be prevented, a satisfactory gluing operation can be performed, and the cross side edge portion can be surely cut with a slitter.

Example 2 Automatic wallpaper gluing machine and slitter for automatic wallpaper gluing machine 1
FIG. 1 is a side perspective view showing the overall configuration of an embodiment of an automatic wallpaper pasting machine according to the present invention. 2A and 2B are explanatory views showing the configuration of the main part of FIG. 1, in which FIG. A is a top view, b is a plan view, and c is a side view. As shown in FIG. 1, the automatic wallpaper pasting machine includes a lower structure 2 in which a glue basket 4 for storing glue is installed, an upper structure 3 that is openable and closable with respect to the lower structure 2, and a lower structure. 2 and the leg part 31 which supports 2 mainly.

  In the lower structure 2, a lower pinch roll 6 having a full width for feeding the cloth C into the gluing machine main body 1 from the rear side and feeding it to the gluing roll 8, and the glue in the gluing pad 4 for gluing roll 8 A glue raising roll 13 for transferring to the cloth, a glue roll 8 for applying glue on the back of the cloth, a doctor roll 7 for adjusting the amount of glue in contact with the glue roll 8, and an appropriate tension applied to the cloth C The leveling rolls 9 fed out in the direction of the part are pivotally supported on the side plate of the glue basket 4 or a bearing plate parallel to the side plate so as to be interlocked with each other via a gear and arranged in parallel at a predetermined interval.

  On the other hand, the upper structure 3 is paired with the lower pinch roll 6 to form a pinch roll and has a full width upper pinch roll 10 having a measuring function, and a roll arranged in the lower structure 2. A drive roll 12 that is linked via a gear to apply a feeding tension to the cloth C toward the front of the pasting machine body, and a presser that presses the cloth C from above between the upper pinch roll 10 and the drive roll 12. The stays 11 are pivotally supported by the main body side bearing frames of the upper structure 3 so as to be arranged in parallel with each other at a predetermined interval. Moreover, the slitter 20 which cuts the both-sides edge of a cross is attached to the rear surface side of the lower structure 2 so that attachment or detachment is possible.

  In addition, a pair of legs 31 that support both side edges of the lower structure 2 are crossed out from a raw roll 40 that is passed through a central axis through a cross core rod 41 supported at the tip of a cross receiving bracket 42. A first tension bar 32 that is in contact with C and applies a pulling load at the pulling port of the pasting machine body is bridged. Further, the cross section disposed in the upper slitter 20 is elliptically shaped so as to abut the cross C at the front lower side of the understay 21 constituting the guide surface for guiding the cross C to the rotary blade 22 and to apply the drawing load at the drawing port. A second tension bar 34 is bridged.

  In the present embodiment, the second tension bar 34 disposed in the slitter 20 immediately before the lead-in port is disposed in front of the understay 21 and the cross C extends from the second tension bar 34 to the rear edge of the understay 21. Since it is abutted so as to be bent along an acute angle, the pull-in load of the pull-in port in the state where the cross fed from the raw roll at the pull-in port is slackened is larger than 1.3 kg weight, and the pinch of the pull-in port Apply a retraction load smaller than the retraction load that the roll slips.

  The rotary blade 22 of the slitter 20 includes an upper rotary blade 22a and a lower rotary blade 22b disposed on the downstream side in the transport direction of the understay 21 that constitutes the guide surface. The upper rotary blade 22a and the lower rotary blade 22b Cut by sandwiching from the upper surface side and the lower surface side of the cloth. The lower rotary blade 22b is driven in the bearing plate constituting the side frame of the slitter 20 through the gear from the bearing plate of the lower structure of the gluing machine body, and the upper rotary blade 22a follows the lower rotary blade 22b. Rotate.

  A lift prevention bar 25 is arranged at a substantially central portion on the understay 21 to allow the cloth to run along the flat guide surface of the understay 21. The lifting prevention bar 25 is arranged with both ends fixed to a prevention bar lock 26 shown in FIG. 2 arranged at both ends of the understay 21. As shown in FIG. 2, the prevention bar lock 26 is made of plastic, and the stay locks with screws through the screw holes 29 of the locking pieces 28 so that the bar lock portions 27 having a substantially C-shaped cross section are located at both ends of the stay 21. Mounted on.

  The stay 21 is fixedly formed with a groove that matches the cross-sectional shape of the locking piece 28 and is flush with the stay 21 surface. The locking piece 28 between the screw hole 29 and the lock portion 27 is formed with a thin plate-like bent portion 28a. When a thick cloth is attached, the bent portion 28a bends and crosses according to the thickness. There is also an effect of pressing the against the stay 21 surface.

  Thereby, when a particularly hard cloth is cut and glued, it is brought into contact with the rear end edge of the understay 21 so as to be bent at an acute angle, so that the cross rises and does not follow the bent portion of the rear end edge. Therefore, it is possible to cut well with the rotary blade 22. A bar holder 39 that holds the first tension bar 32, the second tension bar 34, and the lifting prevention bar 25 is provided on the rear side surface of the slitter 20. Accordingly, it is possible to confirm at a glance that the bars are stored without being disturbed when the bars are stored.

Example 3 FIG. Measurement of pull-in load and maximum allowable load The pull-in load and the maximum allowable load were measured in the same manner as in Example 1 for the automatic wallpaper pasting machine shown in FIG. The results are shown in Table 3. The six types of cloth used were the same as those used in Example 1. Other operations and conditions are the same as those in the first embodiment.

  As shown in Table 3, the pull-in load of the pull-in port with the cross fed from the original fabric roll loosened (the load when the conveyance path is bent between the three tension bars and the rear edge of the understay) ) Was the lightest and lightest core sheet that was slippery and weighed 1.7 kg, and the largest pulling load was 6.0 kg heavier with a woven hard cloth. In addition, the pull-in load when including the weight of each original fabric roll was 4.0 kg heavy at the minimum and 9.5 kg heavy at the maximum, and it did not reach the pull load enough to cause slipping in any cross. . In Table 2, the softest cloth made of vinyl and the cloth made of foamed resin, which are most likely to be wrinkled, showed no wrinkles, and the meandering distance was 4 mm or less.

  Further, even with a thick hard wallpaper, the cloth is not lifted and does not draw a large R along the bent portion of the rear edge, so that it is possible to cut well. In the embodiment shown in FIG. 3 as well, even in a thick hard wallpaper, the cloth does not float and does not draw a large R along the bent portion of the upper end edge, and a good cutting is possible.

Example 4 Automatic wallpaper gluing machine and slitter 2 for automatic wallpaper gluing machine
FIG. 3 is a side perspective view showing the overall configuration of another embodiment of the automatic wallpaper pasting machine of the present invention. 4A and 4B are explanatory views showing the configuration of the main part of FIG. 3, wherein FIG. 4A is a plan view, FIG. 4B is a bottom view, and FIG. As shown in FIG. 3, another automatic wallpaper pasting machine is different from the automatic wallpaper pasting machine shown in FIG. 1 only in the configuration of the slitter 20 '. The description is omitted to show the thing.

  The slitter 20 'disposed just before the drawing-in opening in the present embodiment is composed of both side frames having almost the same standing surface as the lower structure bearing plate of the gluing machine main body and a plurality of stays connecting these two frames. Is done. Among the plurality of stays, a rotary blade unit 22 ′ having a high-speed rotary blade 22a ′ and a motor for driving the same is mounted on both sides of the back stay 21 ′ constituting a vertical guide surface at the rear portion in a variable width manner. Has been. Both side frames use the same components as the bearing plate of the slitter 20 in FIG.

  Since the cross is bent at the upper and lower edges of the back stay 21 'of the slitter 20', the pull-in load of the pull-in port in a state where the cross fed from the raw roll at the pull-in port is loosened However, the pulling load is larger than 1.3 kg weight and smaller than the pulling load at which the pinch roll at the pulling port slips.

  On the upper edge side of the back stay 21 ′, a lifting prevention bar 25 ′ is arranged for bringing the cloth along the flat guide surface of the back stay 21 ′. The lifting prevention bar 25 ′ is disposed with both ends fixed to a prevention bar lock 26 ′ shown in FIG. 4 respectively disposed at both ends of the backstay 21 ′. As shown in FIG. 4, the prevention bar lock 26 ′ is made of plastic, and the two locking pieces 28 ′ are arranged so that the bar lock portion 27 ′ having a substantially C-shaped cross section is located at both ends of the both side bearing plates (frames). It is attached to this frame with screws through screw holes 29a, 29b.

  Of the two screw holes 29a and 29b, the screw hole 29b directly below the bar lock portion 27 ′ is a long hole, and the bent portion is located at a position opposite to the bar lock portion 27 ′ so as to close a part of the long hole. When 28a 'is inserted and a thick cloth is attached, the prevention bar lock 26' is lifted around the screw hole 29a, leaving the bending portion 28a 'in accordance with the thickness, and returned to the bending portion 28a'. There is also an effect of pressing the cross against the surface of the stay 21 by the force to try.

  As a result, when the hard cloth is cut and glued, it is bent along the upper edge of the backstay 21 ′ and brought into contact with the backstay 21 ′, so that the cloth rises and does not follow the bent portion of the upper edge. Can be satisfactorily cut with the rotary blade 22a ′. Note that the rear side surface of the slitter 20 'is provided with a bar holder 39' for holding the first tension bar 32, the second tension bar 34, and the lifting prevention bar 25 '. Accordingly, it is possible to confirm at a glance that the bars are stored without being disturbed when the bars are stored.

Embodiment 5 FIG. Slitter 3 for automatic wallpaper pasting machine
FIG. 5 is an explanatory diagram showing the configuration of another slitter embodiment. FIG. 6 is an explanatory view showing the operation of the tension bar pressing means for pressing the third tension bar against the guide surface.

  As shown in FIG. 5, the slitter 50 provided on the rear side of the gluing machine main body is detachably attached to the rear part of the gluing machine main body 1 ′ by a hook 91. The hook 91 is attached to an upper hook claw 92 that is hooked on the upper stay 46 laid across the left and right of the rear surface of the gluing machine 1 ′, and a lower hook 47 that is arranged below the upper stay 46. The lower hooking claw 93 to be hooked is integrally formed. This eliminates the need to individually adjust the upper hooking claws 92 and the lower hooking claws 93, and the durability of the attachment to the wallpaper pasting machine body is improved. Further, the lower latching piece 47 is provided with a spring means 48 that generates an effect to counteract the latching force on the rear surface side, and since it is placed horizontally via the spring means 48, the slitter 50 and the gluing machine The main body 1 'is securely attached.

  The slitter 50 includes a guide surface 51 serving as a conveyance path for conveying the wall covering material C along the wall covering material C, and a guide surface 51 over the entire width of the wall covering material on the upstream side to the guide surface 51 and the downstream side of the guide surface 51. The second tension bar 52 and the third tension bar 53, which are two tension bars arranged so as to apply tension on the guide surface 51 in a state of being pressed in the direction, and the side end region of the guide surface 51, respectively, rotate. The blade 60 is provided. Note that a holder 54 that holds the cross core bar 41 ′ when housed is installed at the upper part of both side walls of the slitter 50.

  The guide surface 51 is formed over the upper and lower sides of the slitter, and the lower end edge thereof (that is, the wall covering material conveyance upstream edge portion) and the upper edge portion (that is, the wall covering material conveyance downstream edge portion) are: Each has an upstream curved surface portion 55 and a downstream curved surface portion 56 for bending the conveying direction of the wall covering material C. The curvature radius of each curved surface portion is 15 mm. This is to prevent the unevenness of gluing from being caused by the gluing machine due to the mark of the curved surface of the mountain shape on the wall covering C even if it is left for a while with the wall covering C attached for a break time or the like. is there.

  The second tension bar 52 below the slitter 50 (that is, on the upstream side of the wall covering material conveyance) is a round bar member having a length exceeding the entire width of the wall covering material C, similarly to the first tension bar provided on the leg portion. The wall covering material C can be mounted in an open state by the second tension bar rotating member 65 as a tension bar holding arm that supports both ends of the second tension bar 52. When the part is cut, it can be rotated around the attachment shaft 67 to the mounting position of the lower holder 66 below the slitter so as to apply tension.

  Further, the third tension bar 53 on the guide surface 51 above the rotary blade 60 (that is, downstream of the wall material conveyance) has a mechanism as a lifting prevention bar that presses the sandwiched wall material C against the guide surface 51. Prepare. The tension bar pressing means shown in FIG. 6 is disposed on each of the left and right ends of the guide surface 51, and includes a tension bar holding member 57 having an attachment portion 61 for attaching the third tension bar 53 to one end, A fulcrum part 58 that pivotally supports the other end of the member 57 and a spring 59 as an urging means for urging the tension bar holding member 57 so that the third tension bar 53 comes into contact with the guide surface 51. With.

  Thus, the wall covering material C is prevented from being lifted from the guide surface 51 during cutting by the rotary blade 60, and the wall covering material C drawn into the pasting machine main body together with the downstream curved surface 56 of the guide surface 51 is prevented. Good tension can be applied.

1 is a side perspective view showing an overall configuration of an embodiment of an automatic wallpaper pasting machine of the present invention. It is explanatory drawing which shows the structure of the principal part of FIG. It is side surface perspective drawing which shows the whole structure of another Example of the automatic wallpaper pasting machine of this invention. It is explanatory drawing which shows the structure of the principal part of FIG. It is explanatory drawing which shows the structure of a slitter. It is explanatory drawing which shows operation | movement of the tension bar press means which presses a 3rd tension bar to a guide surface.

Explanation of symbols

1 ... Gluing machine body,
1 '... Paste machine body,
2 ... Lower structure,
3 ... upper structure,
4 ... glue paste,
6 ... lower pinch roll,
7 ... Doctor roll,
8… Glue roll,
9 ... leveling roll,
10 ... upper pinch roll,
11… Presser stay,
12 ... Drive roll,
13 ... paste raising roll,
20 ... slitter,
21 ... understay,
22 ... rotary blade,
22a ... Upper rotary blade,
22b ... Lower rotary blade,
25 ... An uplift prevention bar,
26 ... Prevention bar lock,
27: Bar lock,
28 ... locking piece,
28a ... flexible part,
29 ... screw hole,
20 '... slitter,
21 '... Backstay,
22 '... rotary blade unit,
22a '... high-speed rotary blade,
25 '... Lifting prevention bar,
26 '... Prevention bar lock,
27 '... Bar lock,
28 '... locking piece,
28a '... flexure part,
29a ... screw hole,
29b ... screw hole,
31 ... leg,
32 ... the first tension bar,
34 ... the second tension bar,
39 ... bar holder,
39 '... bar holder,
40: Raw roll,
41 ... Cross core,
41 '... cross core,
42 ... cross receiving bracket,
46… upper stay,
47 ... Lower locking piece,
48 ... spring means,
50 ... slitter,
51 ... guide surface,
52 ... the second tension bar,
53 ... the third tension bar,
54… Holder,
55 ... the upstream curved surface portion,
56 ... downstream curved surface portion,
57 ... tension bar holding member,
58… fulcrum part,
59… spring,
60 ... rotary blade,
61 ... mounting part,
65 ... the second tension bar rotating member,
66 ... lower holder,
67… Mounting shaft,
91 ... Hooks,
92 ... Upper pawl,
93 ... Under claws,
C ... Cross,

Claims (5)

While cutting both edges of the sheet-like wall covering fed out from the raw roll with a rotary blade, the cut wall covering is drawn into the inside from the pinch roll of the pull-in port at the rear of the gluing machine body, and provided inside the body. In the automatic wallpaper pasting machine that applies glue to the back of the wall covering material and sends it to the front of the main body with the glued roll,
The pull-in load of the pull-in port is larger than 12.748645N (1.3 kg weight) when the weight of the original roll is not included, and smaller than the pull-in load where the pinch roll of the pull-in port slips when the weight of the original roll is included. Retraction load adjusting means to
As this pulling load adjustment means,
The wall covering is formed on the upstream side of the wall covering material conveyance of the rotary blade as a part of the conveying path of the wall covering material including one or more bent portions from the raw roll to the drawing port at the rear part of the pasting machine main body. A guide surface for guiding the material to the rotary blade;
Automatic wallpaper pasting characterized in that it comprises a curved surface portion formed on the conveying upstream side and / or downstream side edge portion of the guide surface, and a lifting prevention bar for bringing the wall covering material along the guide surface. Machine. The sheet-like wall covering material fed from the raw fabric roll is drawn into the inside from the pinch roll at the drawing port at the rear of the pasting machine main body, and the glue is applied to the back surface of the wall covering material by the pasting roll provided inside the main body. In the slitter for an automatic wallpaper pasting machine that is attached to the rear part of the automatic wallpaper pasting machine to be sent to the front of the main body and cuts both edges of the sheet-like wall covering to be pulled in,
The pull-in load of the pull-in port is larger than 12.748645N (1.3 kg weight) when the weight of the original roll is not included, and smaller than the pull-in load where the pinch roll of the pull-in port slips when the weight of the original roll is included. Retraction load adjusting means to
As this pulling load adjustment means,
The wall covering is formed on the upstream side of the wall covering material conveyance of the rotary blade as a part of the conveying path of the wall covering material including one or more bent portions from the raw roll to the drawing port at the rear part of the pasting machine main body. A guide surface for guiding the material to the rotary blade;
A curved surface portion formed on the conveyance upstream side and / or downstream side edge portion of the guide surface;
A slitter for an automatic wallpaper pasting machine, comprising: a wall for preventing the wall covering from being lifted along the guide surface. A lifting prevention bar for bringing the wall covering material along the guide surface,
A set of bar holding members arranged on both side ends of the guide surface and provided with a mounting portion for attaching a lifting prevention bar to one end portion, a fulcrum portion that pivotally supports the other end portion of each bar holding member, and the lifting prevention The wall covering material is pressed against the guide surface by a bar pressing means provided with biasing means for biasing each bar holding member so as to bring the bar into contact with the contact position of the guide surface. Item 3. A slitter for an automatic wallpaper pasting machine according to item 2. As the pull-in load adjusting means,
A guide surface that is formed on the upstream side of the wall covering material conveyance of the vertical rotary blade that is sandwiched and cut from the upper surface side and the lower surface side of the wall covering material, and guides the wall covering to the rotating blade;
A curved surface portion formed on the conveyance upstream end edge portion of the guide surface;
A lifting prevention bar for allowing the wall covering to follow the guide surface;
The slitter for an automatic wallpaper pasting machine according to claim 2 or 3, wherein an inner angle of the conveyance path bent along the curved surface portion is 90 ° or less. As the pull-in load adjusting means,
A guide surface provided with a high-speed rotary blade for cutting from the lower surface side of the wall covering,
A curved surface portion formed at the conveyance upstream edge and the conveyance downstream edge of the guide surface;
The slitter for an automatic wallpaper pasting machine according to claim 2 or 3, further comprising a lifting prevention bar for bringing the wall covering material along the guide surface.

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