JP2853030B2 - Unit tile sheet peeling method and apparatus - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a unit tile formed by arranging a plurality of tiles at intervals corresponding to joints and attaching a sheet to the front or back surface thereof and integrating the tiles. The present invention relates to a method for peeling off and an apparatus therefor.

[0002]

2. Description of the Related Art There has been a unit tile in which a plurality of tiles are connected by one sheet. As a typical unit tile, 18 tiles are arranged in a 3 × 6 arrangement in the form of a so-called through-joint in which vertical joints and horizontal joints are orthogonal to each other, and a sheet such as kraft paper is pasted on the surface with glue and integrated. It has been turned. As is well known, this unit tile is attached to a wall or the like while being bonded by a sheet, and finally, the sheet is impregnated with water to remove the paste while dissolving the glue. Note that tiles are generally shipped from the manufacturer in the form of unit tiles.

[0003] In some cases, tiles shipped from a manufacturer are appropriately processed in accordance with a user's order. However, since the tiles are shipped in a unit form as described above, it is necessary to perform a step of peeling the sheets and separating them before processing. Conventionally, in such an operation, an operator peels off the sheets one by one by hand while dissolving the glue by impregnating the sheets with water.

[0004]

In the conventional method of peeling the sheet by hand as described above, not only the productivity is low and the cost is high, but also the physical burden on the operator is large, so that some improvement measures are strongly required. Had been.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above, and has been made in consideration of the above circumstances, and provides a unit tile formed by arranging a plurality of tiles at intervals corresponding to joints and attaching a sheet to the front surface or the back surface thereof. Target and a method of peeling the sheet from this unit tile, and performing a pretreatment to weaken the adhesive force of the sheet to the unit tile,
Provided is a unit tile sheet peeling method in which a line member is passed from the back side of the sheet toward the front side with respect to a gap between joint portions of the unit tile, and the sheet is hooked on the line member to peel off the tile. .

[0006] Further, there is provided a pre-processing means for weakening the adhesive strength of the sheet, and a line member passing through a gap between the joints of the unit tiles. The present invention provides a unit tile sheet peeling device in which a line member is passed from the back side of the sheet to the front side with respect to the gap, and the sheet is hooked on the line member and peeled off from the tile.
In addition, preferably, the wire member is configured to endlessly circulate between pulleys including the peeling pulley, and the unit tile is sunk under the peeling pulley so that the sheet is wound between the wire member and the peeling pulley. It is better to

[0007] Further, a conveyer which comes close to or abuts on the wire member and circulates and mounts a unit tile on a transfer surface, and a rail-shaped conveyor which is installed at a transfer start point of the conveyor and enters a gap between joints of the unit tile. Having a guide ridge, a delivery member for positioning the line member so as to fit in the gap of the joint portion and sending out the unit tile onto the conveyor, and a pretreatment means installed downstream from the delivery member, Provided is a unit tile sheet peeling device in which the peeling pulley is arranged downstream of the pretreatment means.

[0008] In the above method or apparatus for removing a sheet from a unit tile, a wire member is passed from the back side of the sheet to the front side through a gap between joints of the unit tile which has been subjected to a pretreatment for weakening the adhesive strength of the sheet. Thereby, the sheet can be easily and neatly peeled off.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. 1 is a partially enlarged cross-sectional view of the sheet peeling device, FIG. 2 is an overall front view of the sheet peeling device,
3 is a partially enlarged sectional view of the sheet peeling device, FIG. 4 is a partially enlarged plan view of the sheet peeling device, FIG. 5 is an enlarged vertical sectional view of the sheet peeling device, and FIG. 6 is a partially enlarged sectional view of the sheet peeling device. ,
FIG. 7 is a plan view showing a unit tile on a conveyor.

First, as shown in FIG. 7, a unit tile 1 is composed of 18 tiles T arranged in a 3 × 6 arrangement in a vertical joint 2a.
And the side joints 2b are arranged so as to be orthogonal to each other, and a single sheet P made of, for example, kraft paper is pasted on the surface thereof with a water-soluble paste to be integrated.

Next, as shown in FIG. 2, the sheet peeling device M includes a frame 4 having casters 3 attached to the grounding surface, an endless conveyor 5 for transferring the unit tiles 1, and an adjacent or close-up conveyor on the conveyor 5. Abutting wire member 6
And a delivery member 7 installed at the transfer start point S of the conveyor 5, a preprocessing means 8 installed downstream of the delivery member 7, and a peeling execution unit 9 located at the most downstream of the conveyor 5.

The conveyor 5 has a structure in which two sets of endless belts are connected to each other, and a bridging plate (not shown, but having the same structure as the bridging plate 20 in FIG. 6) is provided at the joint. It is. When the unit tile 1 is placed on the upper surface of the conveyer 5, the unit tile 1 is transported over the bridging plate on the way to the lowermost stream. The conveyor 5 is not limited to a structure in which two sets of belts are connected as shown in the figure, but may have a structure using one endless belt as shown in FIG. In FIG. 2, reference numerals 10 and 10 are motors for driving the conveyor 5.

The wire member 6 is an endless elastic cord, and its diameter is substantially the same as the gap at the side joint 2b of the unit tile 1. The wire member 6 is stretched between the separation pulley 11a and the pulley 11b provided on the frame 4 and the floating pulley 11c provided on the top of the column 12 of the frame 4, and is connected to the transfer surface of the conveyor 5 between the separation pulley 11a and the pulley 11b. Proximity or abutment. Peeling pulley 11a
Is rotated by the drive of the motor 13 to cause the wire member 6 to rotate in the opposite direction at the same speed as the conveyor 5. Therefore, the wire member 6
Moves in the same direction and at the same speed as the transfer surface of the conveyor 5 between the peeling pulley 11a and the pulley 11b. Also,
Three sets of wire members 6 are provided corresponding to both ends and the center of the horizontal joint 2b of the unit tile 1.
And the groove 14 provided on the peripheral surface of the pulley 11b so as to rotate without displacement.

The delivery member 7 is installed at the transfer start point S of the conveyor 5 and is a straight rail that enters the gap between the rectangular inclined plate 7a larger than the unit tile 1 and the horizontal joint 2b of the unit tile 1. And guide ridges 7b in the form. The inclined plate 7 a is attached to a support plate 15 integrated with the frame 4, and the wire member 6 passes through a gap provided between the lower edge of the tip and the transfer surface of the conveyor 5. Three guide ridges 7b of the sending member 7 are provided corresponding to the wire members 6, and the guide ridges 7b are provided.
Is a line member 6 on an extension of the line.

The pretreatment means 8 is located downstream of the delivery member 7 and supplies a pipe 8a for supplying water, a watering member 8b immediately below the pipe 8a, and a first leveling member located downstream of the watering member 8b. It comprises a member 8c and a second leveling member 8d.
The water sprinkling member 8b and the first and second leveling members 8c and 8d include a metal or synthetic resin base plate 8e having an upper end pivotally mounted on a bearing arm 16 integrated with the frame 4, and a base plate 8e on the base plate 8e. And a sponge 8f whose tip projects longer than the base plate 8e.

The stripper 9 is located at the most downstream side of the conveyor 5 and includes a wire member 6 and a stripper pulley 11a. A spatula member 17 faces the upper portion of the peeling pulley 11a, so that the peeled sheet P does not cling to the peripheral surface of the peeling pulley 11a.

In the drawing, reference numerals 24, 24 denote pulleys for the conveyer 5, and 25, 25... It should be noted that a pressing roller (not shown, for example, of the conveyer 5) is provided above the transfer surface of the conveyer 5 and at an intermediate position between any two adjacent rollers 25, 25 at an interval smaller than the thickness of the unit tile 1. (A solid round bar having the same shape as the roller 25 is made rotatable.) By doing so, when the unit tile 1 dives below the pressing roller, each tile T is pitched between the pressing roller and the two rollers 25, 25, so that the separation of the sheet P and the tile T can be promoted. it can. Alternatively, a sponge may be wound around the outer periphery of the pressing roller, and the sponge may be replaced with the first leveling member 11c or the second leveling member 11d.

Next, the operation of the sheet peeling device M will be described. In the sheet peeling device M, the conveyor 5 rotates counterclockwise in FIG. 2, the wire member 6 rotates clockwise at the same speed, and the water flows from the pipe 8a of the pretreatment means 8 toward the sponge 8f. Is supplied.

First, the unit tile 1 is placed on the inclined plate 7a of the sending member 7 with the sheet P facing upward. At this time, the guide ridges 7b are fitted into the center joints and the horizontal joints 2b at both ends of the unit tile 1. When the unit tile 1 is extruded toward the conveyor 5, the unit tile 1 slides on the inclined plate 7a and rests on the transfer surface of the conveyor 5. As described above, since the line member 6 is on the extension of the guide ridge 7b, the horizontal joints 2b at the center and both ends of the unit tile 1 as shown in FIG.
The wire member 6 is surely inserted into the wire.

The unit tile 1 moves on the transfer surface of the conveyor 5 and passes below the watering member 8b. At this time, the sheet P becomes wet with water contained in the sponge 8f. Further, by passing under the first and second leveling members 8c and 8d, the water is evenly distributed, and the entire surface of the sheet P is uniformly permeated with water. When water permeates into the sheet P in this manner, the water-soluble glue dissolves, so that the adhesive force is extremely weakened. When the unit tile 1 passes under the watering member 8b and the first and second leveling members 8c and 8d, the tile T is moved to the watering member 8b.
And the like, the tip of the sponge 8f is lifted against the base plate 8e, so that the conveyor 5 becomes hard to get wet with water,
The surface of the conveyor 5 can be dried only by installing a dryer underneath. Therefore, the tile T is not wetted more than necessary,
The drying process of the tile T described later can be shortened.
The shortening of the drying process directly leads to promotion of energy saving and improvement of productivity.

Then, the unit tile 1 having passed through the second leveling member 8d is placed on the conveyor 5 and moves for a while. During this time, water completely permeates, and the adhesive force of the sheet P is almost lost. Note that this time gain part is also a part of the preprocessing means 8. In addition, the length of this time earning part is
This is closely related to the transfer speed of the conveyor 5, and if the speed of the conveyor 5 is reduced, the transfer speed can be shortened in proportion thereto.

Next, when the unit tile 1 reaches the peeling pulley 11a, which is the peeling execution unit 9, as shown in FIG.
Is caught by the peeling pulley 11a, passes through the joint portion of the unit tile 1, and rises while turning over the sheet P. On the other hand, since the tile T sinks under the peeling pulley 11a, even if the sheet P is pulled upward, the tile P moves without resting on the conveyor 5 without being lifted. As described above, since the adhesive force of the sheet P is weakened by passing through the pretreatment means 8, the sheet P wound between the wire member 6 and the peeling pulley 11a can be easily tiled.
Peel from The sheet P wound around the peeling pulley 11a is removed by being guided by the spatula member 17. Further, if a paper discharge tray 18 is provided behind the spatula member 17, the sheets P are automatically stored in the paper discharge tray 18.

Since the tile T immediately after the sheet P is peeled off is wet with water, it is sent to the drying step. In the drying step, as shown in FIG. 6, the tile T is placed on the upper surface of the wire mesh type conveyor 19, and the tile T is blown with hot air or directly heated by a heater. In the present embodiment, a bridging plate 20 is provided between the end of the conveyor 5 and the beginning of the wire mesh conveyor 19, and the tiles T after the sheet P is peeled off are automatically transferred to the wire mesh conveyor 19. It is.

Although the present invention has been described with reference to the embodiment, the present invention is not limited to the above embodiment. For example, as shown in FIG. 8, an auxiliary pulley 11d may be provided in the circuit path of the wire member 6 so as to pass the lower side of the conveyor 5. By doing so, there is no danger of the object or body being hooked on the wire member 6, and the work is easy because the conveyor 5 is also neat.
Further, the wire member 6 is not limited to a structure that goes around endlessly as in the embodiment, and may be a fixed plate form attached to the frame 4 with the arm 21 as shown in FIG. 10, for example. . When the unit tile 1 moves on the conveyor 5, the sheet P rises along the inclined line L of the line member 6 and separates from the tile T. The line member 6 is provided with an auxiliary sheet feed roller 22 so that the sheet P can be reliably sent out along the line member 6 while preventing the tiles T from rising. Further, a positioning convex portion 23 having a mountain-shaped cross section protrudes from the conveyor 5, and the horizontal joint 2b of the unit tile 1 fits into the positioning convex portion 23.

Further, the pretreatment means 8 is adapted to the adhesive means of the sheet P, for example, by using a liquid other than water or by heating the unit tile 1 without using water or any other liquid to weaken the adhesive force. Includes all methods and devices that reduce the adhesive strength of Further, the sheet peeling device is constituted by a conveyor, a delivery member, and a peeling execution unit, and the pretreatment is performed manually (by spraying water with a shower, or immersing a unit tile in water, etc.), and a delivery member is provided. It is also possible to set a pre-processed unit tile in the.

[0026]

According to the method for separating a unit tile sheet of the present invention, a joint member of a unit tile subjected to a pretreatment for weakening the adhesive strength of a sheet passes through a wire member from the back side of the sheet to the front side. By doing so, the sheet can be easily and neatly peeled off. Further, since the sheet peeling device can automatically perform the sheet peeling operation, it is effective in improving the productivity and reducing the physical burden on the operator.

Further, the sheet peeling device according to claim 3 is
Since the sheet is sandwiched and wound between the wire member and the peeling pulley, the sheet is powerfully flipped up, and can be held down by the pulley to prevent the tile from floating, so that the sheet can be peeled off without failure. . Further, in the sheet peeling device according to the fourth aspect, since it is only necessary to set the unit tile on the sending member, the productivity can be improved and the effect of reducing the physical burden on the operator can be achieved at a high level.

[Brief description of the drawings]

FIG. 1 is a partially enlarged cross-sectional view of a sheet peeling device.

FIG. 2 is an overall front view of the sheet peeling device.

FIG. 3 is a partially enlarged cross-sectional view of the sheet peeling device.

FIG. 4 is a partially enlarged plan view of the sheet peeling device.

FIG. 5 is an enlarged longitudinal sectional view of the sheet peeling device.

FIG. 6 is a partially enlarged cross-sectional view of the sheet peeling device.

FIG. 7 is a plan view showing unit tiles on a conveyor.

FIG. 8 is an overall front view of a sheet peeling device showing another embodiment.

9 is an enlarged sectional view of a main part of FIG.

FIG. 10 is an enlarged sectional view of a main part of a sheet peeling device showing another embodiment.

[Explanation of symbols]

 M: Sheet peeling device P: Sheet S: Transfer start point T: Tile 1: Unit tile 2a: Vertical joint 2b: Horizontal joint 5: Conveyor 6: Wire member 7: Sending member 7b: Guide ridge 8: Pre-processing means 11a ... Pulling pulley 11b ... Pulley 11c ... Floating pulley 11d ... Auxiliary pulley

Claims (4)

(57) [Claims] 1. A method for removing a sheet from a unit tile, which is intended for a unit tile formed by arranging a plurality of tiles at intervals corresponding to joints and attaching a sheet to the front surface or the back surface thereof. In addition, the unit tile is subjected to a pretreatment for weakening the adhesive strength of the sheet, and a wire member is caused to pass through a gap between joints of the unit tile from the back side of the sheet toward the front side, and the sheet is hooked on the line member. A method of peeling a unit tile sheet, wherein the sheet is peeled off from the tile. 2. A pretreatment means for weakening the adhesive strength of the sheet, and a line member passing through a gap between the joint parts of the unit tile, the joint part of the unit tile being attached to the sheet weakened by the pretreatment means. Characterized in that a line member is passed through from the back side of the sheet to the front side with respect to the gap, and the sheet is hooked on the line member and peeled off from the tile. . 3. The apparatus according to claim 1, wherein the wire member is endless and circulates between pulleys including a peeling pulley, and a unit tile is sunk under the peeling pulley so that a sheet is wound between the wire member and the peeling pulley. The sheet peeling device for unit tiles according to claim 2, wherein: 4. A conveyer that comes close to or abuts on the wire member and circulates to place a unit tile on a transfer surface, and a rail-shaped guide that is installed at a transfer start point of the conveyor and enters a gap between joints of the unit tile. Having a ridge, a delivery member for positioning the line member so as to fit in the gap of the joint portion and sending out the unit tile onto the conveyor, and a pretreatment means installed downstream from the delivery member; The unit peeling device for unit tiles according to claim 3, wherein the peeling pulley is arranged downstream of the pre-processing means.