JP4590623B2 - Automatic wallpaper pasting machine - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a device for applying glue to wallpaper. More specifically, it is for realizing uniform gluing even when the wallpaper is stretched or slackened with moisture.
[0002]
[Prior art]
A schematic configuration of an automatic wallpaper pasting machine conventionally known is shown in FIG.
The automatic gluing machine is equipped with a measuring roller 1, a feeding roller 2, a high tension roller 3, a doctor roller 4, a gluing roller 5, a gluing roller 6, a presser roller 7 and a tearing roller 8 from the cloth insertion side. Has been.
[0003]
The cloth to be glued is sandwiched between two rubber rollers, a measuring roller 1 and a feeding roller 2, and fed into the main body. The measuring roller 1 is supported at both ends and can rotate freely. Moreover, since this roller is pressed against the cloth surface by a spring, it rotates in one direction in accordance with the feeding of the cloth. By setting the outer diameter of the roller to a constant value, if the amount of rotation of the roller is measured by some means (such as detecting a slit plate that equally divides the circumference with a sensor), one point on the outer circumference of the roller becomes the circumference. The distance traveled above, i.e. the length of the fed cloth, can be obtained.
[0004]
This information is always displayed on the operation unit, and the worker can work while watching the situation. When the preset length is reached, the machine will automatically stop. After the machine is stopped, the operator runs the blade of the cutter knife along the cutter guide 10 to cut the cloth, and obtain a glued cloth having a desired length.
[0005]
The glue is stored in a glue box 9 provided at the lower part of the main body. The glue in the glue box 9 is transferred to the glue roller 5 by the glue upper roller 6.
[0006]
By adjusting the distance between the doctor roller 4 and the gluing roller 5, the thickness of the gluing adhered to the outer periphery of the gluing roller 5 is adjusted. Glue replenishment is performed by pulling out the glue box 9 and putting the glue in from an opening formed above using a handle.
[0007]
A layer of glue with a controlled thickness contacts the cloth and transfers the glue to the back of the cloth. The glue transferred by the scrub roller 8 is leveled, and a cloth comes out from the front of the main body. The high tension roller 3 and the presser roller 7 work to make the glue uniform and to carry the cloth smoothly. The material of the surface layer of the wallpaper is various, such as paper and vinyl chloride, but the back surface of the wallpaper is usually paper. Glue is transferred to the backing paper portion by the gluing roller 5 of the automatic gluing machine and the gluing operation is performed.
[0008]
[Problems to be solved by the invention]
Conventionally, vinyl chloride has been mainly used as a material for the surface layer of wallpaper. However, in recent years, a lot of paper has been used not only for the backing paper but also for the surface layer material from the viewpoint of environmental protection or pollution prevention. Wallpaper made of paper as a material for the surface layer also has the property of stretching more when it contains moisture and contracting to some extent when it dries. The glue used for the construction is also a starch paste dissolved in water, and since it contains moisture, the part to which the glue is applied is stretched. Normally, this stretching process proceeds gradually, but depending on the nature of the paper, there is a wallpaper that stretches rapidly in a short time. (Figure 2)
[0009]
In the case of such a wallpaper, even if it is left for 1-2 minutes during the gluing operation, the wallpaper starts to grow. At this time, with the initial contact position of the glue roller 5 and the wallpaper A as a boundary, the side where the glue has not yet been applied remains the width W, but the wallpaper on the side to which the glue has been applied has expanded to a width W + 2L. A condition occurs. Of course, the wallpaper also extends in the longitudinal direction of the wallpaper, but since there is nothing to restrain the elongation in this direction, the wallpaper extends uniformly. However, in the width direction, the wallpaper is gripped by two rubber rollers (the measuring roller 1 and the feeding roller 2), and further, the high tension roller 3 is loaded with an appropriate tension, so that the wallpaper is uniform. Stretching is constrained, causing wrinkles and slack. In particular, at both ends of the wallpaper, the sag of the wallpaper that gradually expands from the central portion is collected, and a V-shaped swell (sag) as shown in FIG. 3 is formed.
[0010]
Once this slack is formed, there is no way to eliminate the slack, so that the slack wallpaper A passes through the surface layer of the gluing roller 5 as shown in FIG. If the slack is equal to or greater than the film thickness of the glue, the glue is naturally not transferred to this portion, which causes poor gluing.
[0011]
In general, such a symptom often occurs only on the first sheet resumed after being left for several minutes after work. This is because during continuous work, the wallpaper passes over the glue roller 5 before it is fully stretched, but conversely, it is easy to overlook the occurrence of symptoms, and there are cases in which construction is caused as it is. . Therefore, there has been a demand for a gluing machine that can reliably perform gluing even when this symptom occurs.
[0012]
[Means for Solving the Problems]
In the present invention, a roller member (hereinafter referred to as a press roller) is installed over a glued roller via a wallpaper, the wallpaper is pressed against the glued roller surface with a constant load, and slack caused by stretching of the wallpaper containing moisture. Is pressed against the gluing roller to flatten the wallpaper, prevent the wallpaper from floating from the surface of the gluing roller, eliminate gluing failure, and achieve uniform gluing. (Claim 1) (FIGS. 4 and 5)
[0013]
Furthermore, the press roller freely moves up and down in a long groove provided in the bearing member that supports the press roller, so that it can be used for wallpaper of various thicknesses, and when the press roller is not used, it is separated from the glue roller. By providing a locking hole and a clip mechanism for holding the press roller at a certain position, a mechanism that allows the operator to enjoy the effect of the press roller at any wall thickness as required is realized. . (Claim 1 )
[0014]
Alternatively, by employing the structure which swings around a fulcrum in the bearing member, an operator so as to perform left easy working posture switching of use and non-use of a press roller, (claim 2) further bearing By providing a spring that biases the member and a damper that is set to antagonize the biasing force, the press roller automatically returns from the use state to the non-use state, and the operator uses or does not use it. It is also possible to realize a mechanism that does not need to be aware of switching. As a result, when the operator forgets to use the press roller and uses up the cloth, it is possible to prevent an accident in which the press roller contacts the glue roller and the glue is transferred. (Claim 2 )
[0015]
In addition, by making the press roller itself a dual structure of a press roller main body as a core material and a plurality of outer rollers slidably provided on the outer periphery thereof, only the necessary portions can be more effectively pressed ( It is possible to press. (Claim 3 )
[0016]
DETAILED DESCRIPTION OF THE INVENTION
The following shows an example in which a press roller for pressing the wallpaper against the pasting roller with an appropriate load is installed in the automatic wallpaper pasting machine.
[0017]
FIGS. 6A to 6C show an example of a structure in which a press roller moves up and down along a long groove provided in a bearing member. A bearing member 12 is provided on the frame of the automatic gluing machine. The bearing member 12 is provided with a groove for supporting both ends of the press roller 11. One end of the groove is released, and the press roller 11 can be extracted from the open portion 14. The press roller 11 is inserted into the bearing member 12 from the release portion 14 and is supported by a groove provided in the bearing member. Two long and short grooves are connected to each other, and the press roller 11 can move in the two grooves. The press roller 11 is made of a stainless steel round bar, and has a diameter (in this embodiment, a diameter of 12 mm and a weight of approximately 1.1 kg) that is about 1 kg to 2 kg. It is desirable to make it as light as possible to eliminate the slack in the wallpaper.
[0018]
Fig.6 (a) is the figure which showed the case where the press roller 11 was dropped in the short groove | channel, and was pivotally supported. The press roller 11 is pivotally supported in the groove and is held by a clip mechanism (FIG. 6C) 13 so as not to jump out of the groove. At this position, the press roller 11 is pivotally supported while floating from the wallpaper A and does not function. The press roller 11 is held at this position when pasting wallpaper that does not easily stretch and does not require a press roller. Further, even in the case of wallpaper that is easy to stretch, it takes a certain amount of time to stretch. Therefore, when performing gluing work continuously, there is almost no problem elongation due to a short time, and the press roller 11 is not required. . Even in such a case, the press roller can be held at this position, and the press roller 11 can be used by moving to the position shown in FIG. 6B only when necessary.
[0019]
FIG. 6B is a view showing a case where the press roller 11 is dropped into the longer groove. The press roller 11 is restricted in movement in the width direction by an elongated hole-like groove. Since the groove is long in the vertical direction, the press roller 11 can freely move in the vertical direction. The press roller 11 pivotally supported in the groove is urged downward by the own weight and presses the wallpaper A between the upper surface of the glue roller 5. A clip mechanism (FIG. 6C) 13 is provided in the groove to prevent the press roller 11 from naturally moving out of the groove.
[0020]
FIG. 6C is a three-dimensional perspective view of this structure. The press roller 11 is pivotally supported by two continuous grooves separated by a clip mechanism 13. An operator can move freely between the two grooves by moving the press roller 11 by hand to get over the clip mechanism 13. The press roller 11 can be set in either the long or short groove depending on whether or not the pressing is necessary. Furthermore, when the press roller 11 is not necessary at all, it is also possible to remove the press roller 11 from the cutout portion 14.
[0021]
The bearing member in this embodiment also serves as a bearing for the press roller 11 and the high tension roller 3, but both may be configured as separate members.
[0022]
7A to 7C show an example in which the press roller 11 is supported by a bearing member 12 that can be swung around a fulcrum. FIG. 7A shows a state where the press roller 11 is not used. One of the bearing members 12 that pivotally support the press roller 11 is like a clip, and the clip member is held by inserting the clip portion into the shaft of the high tension roller 3. The clip portion freely rotates with the axis of the high tension roller 3 as a fulcrum. The clip mechanism 13 is attached with a clearance that does not move with the rotation of the high tension roller.
[0023]
FIG. 7B shows a state where the press roller 11 is used. The bearing member 12 swings around the axis of the high tension roller 3 as a fulcrum, and the press roller 11 supported by the bearing member 12 also swings toward the gluing roller 5 side. Since the position of the press roller 11 is shifted outward from the position of the high tension roller 3, the bearing member 12 receives a moment to constantly rotate around the fulcrum toward the gluing roller 5 due to its own weight. . Accordingly, the press roller 11 is always urged toward the gluing roller 5 by its own weight.
[0024]
FIG. 7C is a three-dimensional perspective view of this structure. The operator can easily switch the use / non-use state of the roller simply by holding the press roller 11 up and down. Since the roller is simply moved up and down, and there is no trouble such as fitting into the clip, switching can be easily performed even if the worker remains in the working posture in front of the machine.
[0025]
FIGS. 8A and 8B show an example of a structure that automatically enters the non-use state when the press roller 11 is unnecessary. FIG. 8A is a view showing the structure around the press roller 11 and its bearing member 12. The press roller 11 is pivotally supported by a bearing member 12 configured to swing around the axis of the high tension roller 3 as a fulcrum. The bearing member 12 is always urged by an urging means such as a tension coil spring 15 so that the press roller 11 is away from the gluing roller 5. A rack gear 17 is provided inside the bearing member 12, and a gear 16 is provided on the frame so as to mesh with the rack gear 17. The shaft of the gear 16 is connected to a unidirectional damper (not shown) shaft. When the gear 16 rotates clockwise, it rotates with no load, and when the gear 16 rotates counterclockwise, it is a damper. Is applied and loaded, and is configured to rotate very slowly.
[0026]
When the press roller 11 is not normally used, as shown in FIG. 8A, the bearing member 12 is urged by the tension coil spring 15 and the press roller 11 is stationary at a position away from the gluing roller 5. . When the press roller 11 becomes necessary during the gluing operation, the operator pushes the press roller 11 down by hand so that the press roller 11 is fully pushed down to the gluing roller 5 side. At this time, the gear 16 is rotated clockwise by the rack gear 17 provided on the bearing member 12. However, since the damper is unidirectional, no load is generated. Can move the press roller 11 only with the force of extending the tension coil spring 15.
[0027]
When the operator releases his / her hand from the press roller in the state of FIG. 8B, the bearing member 12 is pulled by the tension coil spring 15 to return to the state of FIG. 8A. At this time, the rack gear 17 provided on the bearing member 12 rotates the gear 16 counterclockwise. In this direction, the damper acts and generates a load that antagonizes the tensile force of the spring. Accordingly, the gear 16 rotates very slowly, and the bearing member 12 and the press roller 11 supported by the shaft also slowly rise and gradually change from the state shown in FIG. 8B to the state shown in FIG. To go.
[0028]
That is, since the press roller 11 presses the wallpaper against the gluing roller 5 when the slack portion passes due to the expansion of the wallpaper, uniform gluing is possible, and after the passage, the press roller 11 gradually pulls the tension coil spring 15. Since the pressure roller 11 rises and moves away from the wallpaper and the gluing roller 5, the press roller 11 is naturally not used in a portion where the press roller 11 is unnecessary.
[0029]
The press roller 11 has a structure that presses the wallpaper A against the gluing roller 5, so that when the wallpaper remains in the use state, the press roller 11 contacts the surface of the gluing roller 5, and the glue on the surface is applied to the press roller 11. It will be transcribed. However, in the case of this method, the press roller 11 naturally returns to the non-use state, so there is no concern that the glue is transferred. That is, the operator only has to press down the press roller 11 by hand immediately before the start of the gluing and immediately start the gluing operation without paying attention to the presence or absence of the wallpaper A or the position of the press roller 11.
[0030]
Although several examples of methods for installing the press roller 11 have been described above, FIGS. 9 and 10 illustrate an example of the shape of the press roller 11 itself.
[0031]
Normally, the width of the wallpaper is generally around 960 mm, but the width varies depending on the type. Further, the ear portion of the wallpaper is often cut by a cutting device called a slitter, and the width of the wallpaper A passing over the gluing roller 5 varies. In order for the press roller 11 to work effectively, both ends of the wallpaper A must be effectively pressed (pressed against the gluing roller 5), and the effective width of the press roller 11 is the maximum wallpaper width to be used. It is necessary to satisfy.
[0032]
However, when the wallpaper A having a width shorter than that of the press roller 11 is pressed, the end of the press roller 11 protrudes outward from the wallpaper A as shown in FIG. At this time, the distance t between the glue layer on the surface of the gluing roller 5 and the surface of the press roller 11 is reduced, and the glue is transferred to the press roller 11 in some cases. When the glue is transferred to the surface of the press roller, the glue travels along the roller surface to the surface of the wallpaper, and the glue is attached to the surface of the wallpaper, so that the construction quality is significantly impaired. In addition, troubles such as wiping off glue are required. Therefore, as shown in FIG. 9B, a slidable outer roller 18 is provided outside the press roller 11 so that the press roller 11 has a two-layer structure, and the outer roller 18 presses the wallpaper. If both ends of the outer roller 18 are aligned with the edges of the wallpaper, the distance between the glue layer and the surface of the press roller 11 is increased, thereby preventing the glue from being transferred. In addition, since only the surface portion of the outer roller 18 is in contact with the wallpaper, the weight of the press roller 11 can be more effectively applied, and the weight of the roller can be reduced.
[0033]
FIG. 10A shows the outer periphery of the press roller 11 attached with an outer roller 18 made of an elastic body such as urethane rubber. The outer roller 18 is held by the press roller 11 using its own elasticity, and can be freely moved in the axial direction of the press roller 11 by applying an external force by hand. If the operator sets the outer roller 18 at a position corresponding to the width of the wallpaper after cutting and works, the weight of the press roller 11 effectively acts on the edge of the wallpaper, and uniform gluing becomes possible. .
[0034]
FIG. 10B shows an outer roller 18 formed of a rigid body attached to the outer periphery of the press roller 11. Since it is a rigid body and cannot be held by the press roller 11 itself, both sides are pressed by the O-ring 19 as means for holding the position in the axial direction. Since the O-ring 19 is held by the press roller 11 with its own elasticity, the outer roller 18 is held in a space surrounded by the two O-rings 19. When changing the position, first, the O-ring 19 on one side is moved, and then the outer roller 18 and finally the O-ring 19 on the opposite side are pressed down.
[0035]
【The invention's effect】
By installing a press roller mechanism that presses the slack parts on both sides of the wallpaper against the surface of the gluing roller, gaps between the wallpaper and the gluing roller do not occur even in the case of wallpaper that contains water and easily stretches, resulting in poor gluing. It is possible to realize uniform gluing without causing any problems.
[Brief description of the drawings]
FIG. 1 is a diagram (side view) illustrating a schematic configuration of a conventional gluing machine
FIG. 2 is a diagram illustrating the occurrence of sagging due to wallpaper stretching. FIG. 3 is a diagram illustrating the flow of stretched wallpaper in a conventional gluing machine. FIG. 4 is a diagram illustrating a schematic configuration of the gluing machine of the present invention. Side view)
FIG. 5 is an explanatory view showing an effect of the present invention. FIG. 6 is an explanatory view showing an example of the embodiment of the present invention. FIG. 7 is an explanatory view showing an example having a swinging bearing member. FIG. 9 is an explanatory view showing an example of automatic return with a roller. FIG. 10 is an explanatory view showing a roller structure. FIG. 10 is an explanatory view showing a structure of an outer roller.
A Wallpaper 1 Measuring roller 2 Feeding roller 3 High tension roller 4 Doctor roller 5 Glue roller 6 Glue roller 7 Presser roller 8 Peel roller 9 Glue box 10 Cutter guide 11 Press roller 12 Bearing member 13 Clip mechanism 14 Release part 15 Tension coil spring 16 Spur gear 17 Rack gear 18 Outer roller 19 O-ring

Claims (3)

In an automatic wallpaper pasting machine that applies glue on the back side of wallpaper, a roller member that presses the wallpaper against the glue roller is installed, and by its own weight, the wallpaper is pressed against the surface of the glue roller to eliminate wrinkling and loose parts. Automatic wallpaper pasting machine,
The roller member is pivotally supported or held by a bearing member attached to a roller inside the frame or gluing machine,
The bearing member is provided by connecting two long and short grooves,
In a long groove, hold it so that it can move freely along the groove and press the wallpaper against the surface of the glue roller,
An automatic wallpaper pasting machine comprising a mechanism for holding a roller member in a position where it does not come into contact with a gluing roller in a short groove and clipping so as not to deviate from the short groove . In an automatic wallpaper pasting machine that applies glue on the back side of wallpaper, a roller member that presses the wallpaper against the glue roller is installed, and by its own weight, the wallpaper is pressed against the surface of the glue roller to eliminate wrinkling and loose parts. Automatic wallpaper pasting machine,
The roller member is pivotally supported or held by a bearing member attached to a roller inside the frame or gluing machine,
The bearing member has a structure that swings with respect to a fulcrum,
The bearing member is provided with an urging means such as a spring and a damper, and is provided with a mechanism for gradually raising the roller member after the roller member is set at the wallpaper pressing position. Automatic wallpaper pasting machine. 3. The automatic wallpaper pasting machine according to claim 1, wherein the roller member includes a core roller and a plurality of outer rollers slidably attached to an outer periphery thereof. 4.

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