JP6957565B2 - Tile carpet dismantling equipment, tile carpet dismantling system, and tile carpet dismantling method - Google Patents

Description

The present invention relates to a tile carpet dismantling device, a tile carpet dismantling system, and a tile carpet dismantling method.

Tile carpets are widely used in offices and residences. The tile carpet generally includes a pile layer having a texture peculiar to the carpet, a backing layer formed of a resin such as vinyl chloride, and an adhesive layer connecting the pile layer and the backing layer. When used, tile carpets are laid on the floor of offices and homes with the pile layer as the upper surface.

Recycling of tile carpets that have been discarded due to deterioration over time after installation is also underway. In the recycling of tile carpet, for example, only the resin forming the backing layer is separated and reused. Patent Document 1 issued to the present applicant discloses a method for disassembling a tile carpet and a disassembling device for separating and disassembling a pile layer and a backing layer by a rotary cutter.

Japanese Patent No. 6373698

Various types of tile carpets are provided by various manufacturers, and the plane dimensions and the height of each layer such as a pile layer and a backing layer are various.

Therefore, when dismantling a large number and many types of tile carpets in the dismantling method and dismantling device described in Patent Document 1, it is necessary to separate the tile carpets by type and then dismantle the tile carpets by type. When the type of tile carpet to be dismantled changed, it was necessary to manually adjust the position of the rotary cutter and the like according to the type of tile carpet to be processed next.

An object of the present invention is to provide a tile carpet dismantling device, a tile carpet dismantling system, and a tile carpet dismantling method capable of efficiently dismantling a wide variety of tile carpets by reducing the above-mentioned labor.

According to the first aspect of the present invention,
A tile carpet dismantling device that dismantles tile carpets
A sensor unit that acquires side information including the height of the tile carpet, and
It is provided with a removing portion for removing the surface of the tile carpet.
The removal part
A rotary cutter that cuts the surface of the tile carpet,
A tile carpet dismantling device including a position adjusting mechanism for adjusting the vertical position of the rotary cutter based on the side surface information is provided.

According to this aspect, the vertical position of the rotary cutter can be adjusted to a position corresponding to the tile carpet to be processed next based on the side surface information of the tile carpet acquired by the sensor unit. Therefore, the labor of manually adjusting the position of the rotary cutter according to the type of tile carpet is reduced, and many types of tile carpet can be efficiently disassembled.

In the tile carpet dismantling device of the first aspect, the tile carpet may include a backing layer, an adhesive layer on the backing layer, and a pile layer on the adhesive layer. The height of the backing layer, the height of the adhesive layer, and the height of the pile layer may be included, and the position adjusting mechanism is at least the height of the backing layer, the height of the adhesive layer, and the height of the pile layer. The vertical position of the rotary cutter may be adjusted based on one.

In the tile carpet dismantling device of the first aspect, the position adjusting mechanism includes a housing that supports the rotary cutter, a moving mechanism that moves the housing in the vertical direction, and the moving mechanism based on the side surface information. A control unit for controlling may be provided.

The tile carpet dismantling device of the first aspect may further include a pressing member that is arranged below the rotary cutter and presses the tile carpet downward. In the tile carpet dismantling device of the first aspect, the position adjusting mechanism may adjust the vertical position of the rotary cutter independently of the holding member.

According to the second aspect of the present invention,
A tile carpet dismantling system that dismantles a tile carpet that includes a backing layer, an adhesive layer above the backing layer, and a pile layer above the adhesive layer.
A conveyor that conveys the tile carpet along the conveying direction,
A sensor unit that acquires side information including the height of the tile carpet, and
A pile layer removing device that removes at least a part of the pile layer,
It is provided with an adhesive layer removing device arranged on the downstream side in the transport direction of the pile layer removing device and removing at least a part of the adhesive layer.
The pile layer removing device
A first rotary cutter that cuts at least a part of the pile layer,
A first position adjusting mechanism for adjusting the vertical position of the first rotary cutter based on the side surface information is provided.
The adhesive layer removing device
A second rotary cutter that cuts at least a part of the adhesive layer,
A tile carpet dismantling system including a second position adjusting mechanism for adjusting the vertical position of the second rotary cutter based on the side surface information is provided.

In the tile carpet dismantling system of the second aspect, the sensor unit obtains the side surface information on the upstream side in the transport direction of the pile layer removing device, and the first sensor unit and the downstream side in the transport direction of the pile layer removing device. A second sensor unit that acquires the side surface information on the upstream side in the transport direction of the adhesive layer removing device may be included, and the first position adjusting mechanism is a first rotary cutter based on the side surface information acquired by the first sensor unit. The vertical position of the second rotary cutter may be adjusted, and the second position adjusting mechanism may adjust the vertical position of the second rotary cutter based on the side surface information acquired by the second sensor unit.

According to the third aspect of the present invention,
Placing tile carpet on the conveyor and
A method for dismantling a tile carpet is provided, which comprises cutting the surface of the tile carpet previously placed by the tile carpet dismantling device of the first aspect.

According to the fourth aspect of the present invention,
A tile carpet dismantling method for dismantling a tile carpet including a backing layer, an adhesive layer on the backing layer, and a pile layer on the adhesive layer.
A method is provided that comprises cutting at least a portion of the pile layer and cutting at least a portion of the adhesive layer using the tile carpet dismantling system of the second aspect.

According to the tile carpet dismantling device, the tile carpet dismantling system, and the tile carpet dismantling method of the present invention, many kinds of tile carpets can be efficiently dismantled.

FIG. 1 is a diagram schematically showing a tile carpet dismantling system according to an embodiment of the present invention. FIG. 2A is a perspective view of the tile carpet. FIG. 2B is a side view of the tile carpet and shows the laminated structure of the tile carpet. FIG. 3A is a plan view showing the configuration of the conveyor. FIG. 3B is an enlarged side view of the conveyor chain. FIG. 4 is a side view showing the configuration of the sensor unit. FIG. 5 is a side view showing a partial configuration of the removal device. FIG. 6 is a perspective view of a part of the removal device. FIG. 7A is a side view of the rotary cutter viewed from a direction orthogonal to the rotation axis. The moving housing shown in FIG. 7A is drawn as a cross-sectional view at the center in the transport direction. FIG. 7B is a cross-sectional view taken along the line VIIB-VIIB of FIG. FIG. 8 is a side view of the rotary blade of the rotary cutter as viewed in the direction of the rotation axis. FIG. 9A is a plan view of the pressing member. 9 (b) is a cross-sectional view taken along the line BB of FIG. 9 (a). 9 (c) is a cross-sectional view taken along the line CC of FIG. 9 (a). 9 (d) is a cross-sectional view taken along the line DD of FIG. 9 (a). FIG. 10 is a perspective view showing the configuration of the suction mechanism. FIG. 11A is a plan view showing the configuration of the chamber body and the intake unit. FIG. 11B is a side view showing the positional relationship between the chamber main body, the transport surface, and the waste processing conveyor. In FIG. 11B, the chamber body is depicted as a cross-sectional view taken along line BB in FIG. 11A. FIG. 12 is a diagram schematically showing a backing layer cutting unit according to an embodiment. FIG. 13 is a perspective view of the posture adjusting mechanism and the feeding mechanism. FIG. 14A is a side view of the posture adjusting mechanism and the feeding mechanism as viewed from the downstream side in the transport direction. In FIG. 14A, the feed roller is drawn with a dotted line and viewed through. FIG. 14B is a plan view of the posture adjusting mechanism and the feeding mechanism as viewed from above. In FIG. 14B, the beam portion 72 is drawn by a dotted line and viewed through. FIG. 15A is a plan view of the cutting blade unit of the cutting mechanism. FIG. 15B is a side view of the rotary cutting blade included in the upper and lower cutting blades of the cutting blade unit. FIG. 16 is a flowchart showing a tile carpet dismantling method. FIG. 17 is an explanatory diagram for explaining a method of processing the tile carpet by dividing it into two regions. 18 (a) to 18 (e) are explanatory views for explaining a pile layer removing step in which a removing device removes a pile layer. 19 (a) to 19 (e) are explanatory views for explaining a backing layer cutting step in which the backing layer cutting unit cuts the backing layer.

<Embodiment>
The tile carpet dismantling system 1000 (FIG. 1) according to the embodiment of the present invention will be described with reference to FIGS. 1 to 19.

[Tile Carpet T]
An example of a tile carpet dismantled by the tile carpet dismantling system 1000 is a tile carpet T having a square view in a plan view as shown in FIG. 2 (a). The tile carpet T is usually spread on the floor of a building such as an office or a residence, and is installed on the floor surface of a skeleton (office building, etc.) or on the upper surface of a floor panel which is installed on the floor surface to define a space for wiring. It is fixed by the adhesive. When the building is remodeled or demolished, or when the tile carpet needs to be replaced due to deterioration, the tile carpet T is separated from the floor surface and demolished by the tile carpet demolition system 1000.

As shown in FIG. 2B, the tile carpet T has a three-layer structure including a pile layer L1, an adhesive layer (intermediate layer) L2, and a backing layer (lining layer) L3.

The pile layer L1 is a layer located on the upper side (front side) when the tile carpet T is laid on the floor surface, and has a texture peculiar to the carpet. In the pile layer L1, a large number of inverted U-shaped protrusions p formed by sewing the pile thread P to the base cloth F are provided over the entire surface of the tile carpet T. The heights (pile heights) of each of the numerous protrusions p are substantially the same as each other.

The material of the pile yarn P is polypropylene (PP) or polyamide (PA) as an example. In FIG. 2B, only a single pile yarn P is drawn, but in an actual tile carpet, the pile layer L1 is formed by a large number of pile yarns.

The adhesive layer (intermediate layer) L2 is a layer for fixing the pile layer L1 to the backing layer (lining layer) L3. In the adhesive layer L2, the surface of the base cloth F opposite to the surface on which a large number of protrusions p are formed is fixed to the backing layer L3 by an adhesive.

The backing layer L3 is a layer located on the lower side (back side) when the tile carpet T is laid on the floor surface, and is a layer adhered to the floor surface or floor panel of a skeleton such as an office building. The backing layer L3 is formed of polyvinyl chloride (PVC) as an example.

As shown in FIG. 2B, the tile carpet T has a pile layer height (pile height) h1, an adhesive layer height h2, a backing layer height h3, and a tile height H. The pile layer height h1 is the height from the upper surface of the base cloth F to the top of the protrusion p. The adhesive layer height h2 is the height from the upper surface of the backing layer L3 to the lower surface of the base cloth F. The backing layer height h3 is the height from the lower surface to the upper surface of the backing layer L3. The tile height H is the height from the lower surface of the backing layer L3 to the top of the protrusion p, that is, the thickness of the tile carpet T. The tile height H is substantially equal to the sum of the pile layer height h1, the adhesive layer height h2, and the backing layer height h3.

[Tile carpet dismantling system 1000]
As shown in FIG. 1, the tile carpet dismantling system 1000 is connected to a conveyor (conveyor) 100, a sensor unit 200, a removal device (disassembly device) 310, 320, 330, 340, a backing layer cutting unit 400, and the like. It mainly includes a control unit CONT.

The sensor unit 200 and the removal devices 310, 320, 330, and 340 are arranged on the conveyor 100 in this order from the upstream side in the transport direction of the conveyor 100. The backing layer cutting unit 400 is installed on the downstream side of the conveyor 100 in the transport direction.

In the following description of the tile carpet dismantling system 1000 and each device constituting the tile carpet dismantling system 1000, the terms "upstream side" and "downstream side" are used in the transport direction in the conveyor 100 and the backing layer cutting unit 400 unless otherwise specified. It means the upstream side and the downstream side of. Further, the horizontal direction orthogonal to the transport direction is referred to as an orthogonal direction, and the right side and the left side when viewed from the upstream side to the downstream side in the transport direction are referred to as the right side and the left side in the orthogonal direction. The direction orthogonal to the transport direction and the orthogonal direction is the vertical direction.

[Conveyor 100]
The conveyor (conveyor) 100 conveys the tile carpet T along the conveying direction so that a predetermined process is sequentially performed on the tile carpet T to be dismantled.

As shown in FIG. 1, the conveyor 100 is mainly provided at the frame 101 extending in the transport direction, a pair of upstream sprockets 102 provided at the upstream end of the frame 101, and the downstream end of the frame 101. It includes a pair of downstream sprockets 103 and a pair of conveyor chains 104 spanned between a pair of upstream sprockets 102 and a pair of downstream sprockets 103.

As shown in FIG. 3A, the frame 101 includes a pair of side plates 101s that are separated from each other in the orthogonal direction and face each other, and a plurality of connecting members 101c that extend in the orthogonal direction and connect the pair of side plates 101s. Each of the pair of side plates 101s is a long plate-shaped member extending in the transport direction, and the support legs 105 are fixed in the vicinity of both ends in the longitudinal direction. A pair of reinforcing beams 101e extending in the transport direction along the upper edge and the lower edge are fixed to the region of each outer surface of the pair of side plates 101s sandwiched between the support legs 105.

The pair of upstream sprockets 102 are separated in the orthogonal direction and connected by a shaft 102A. The shaft 102A is rotatably supported by the pair of side plates 101s in the vicinity of the upstream end of the pair of side plates 101s. Similarly, the pair of downstream sprockets 103 are spaced apart in the orthogonal direction and connected by a shaft 103A. The shaft 103A is rotatably supported by the pair of side plates 101s in the vicinity of the downstream end of the pair of side plates 101s.

A motor (not shown) is provided below the upstream sprocket 102. This motor is connected to the upstream sprocket 102 via a power transmission system (not shown) including a chain, gears, and the like so as to rotate the upstream sprocket 102.

The pair of conveyor chains 104 are separated from each other in the orthogonal direction in a state of being hung between the upstream sprocket 102 and the downstream sprocket 103. Below the conveyor chain 104 extending in the transport direction on the upper side of the conveyor 100, a plate portion 101p (FIG. 4) protruding inward in an eaves shape from the side plate 101s is located. The plate portion 101p supports the conveyor chain 104 from below to prevent the conveyor chain 104 from bending.

As shown in the enlarged view in FIG. 3A, a flat plate-shaped mounting portion 104a projecting inward in the orthogonal direction from the upper edge of the chain element 104e is fixed to each of the plurality of chain elements 104e constituting the conveyor chain 104. Has been done. A transport plate TP is erected between each pair of the pair of chain elements 104e arranged in the orthogonal direction via the mounting portion 104a.

Each of the transport plates TP is a rectangular plate made of a metal such as stainless steel, the orthogonal direction being the longitudinal direction and the transport direction being the lateral direction. The transport plate TP is fixed to one mounting portion 104a of the pair of conveyor chains 104 at one end in the orthogonal direction, and is fixed to the other mounting portion 104a of the pair of conveyor chains 104 at the other end.

A resin plate (mounting portion, mounting plate) RP having the same plan view shape as the transport plate TP is fixed to the upper surface of each of the transport plate TPs. Each of the resin plate RPs is made of ultra high molecular weight polyethylene (UHMW-PE). The resin plate RP is aligned with the transport plate TP and covers the entire upper surface of the transport plate TP, and is screwed onto the transport plate TP through through holes provided near the four corners of the resin plate RP. It has been stopped.

In the present specification and the present invention, the ultra-high molecular weight polyethylene means polyethylene having a molecular weight of 1 million or more. The ultra-high molecular weight polyethylene in the present embodiment may be polyethylene having a molecular weight of 1 million or more, but more preferably polyethylene having a molecular weight of 4 million or more.

The transport surface TS of the conveyor 100 is formed by the upper surfaces of the plurality of resin plate RPs arranged in the transport direction. On the transport surface TS, a gap g is defined between the resin plate RPs adjacent to each other in the transport direction. The size of the gap g may be about 1 to 3 mm as an example, and the dimension D in the transport direction of the resin plate RP may be about 120 to 130 mm as an example. The size of the gap g can be about 0.01D to 0.03D with respect to the dimension D.

In FIG. 3A, the transport plate TP and the resin plate RP are shown by dotted lines only in a part of the transport direction in order to avoid complication of the drawings.

[Sensor unit 200]
The sensor unit 200 acquires side information (side image) of the tile carpet T to be dismantled, and the height information included in the side information, that is, pile height h1, adhesive layer height h2, backing layer height h3. , And a unit that acquires the tile height H.

As shown in FIG. 4, the sensor unit 200 mainly includes a support arm 201 fixed to the frame 101 of the conveyor 100, a sensor main body 202 supported by the support arm 201, and a lighting device 203.

The support arm 201 is a longitudinal member bent in a substantially L shape, and its lower end is fixed to the reinforcing beam 101e of the frame 101.

The sensor body 202 is a camera 202c that captures an image of an object to be detected (here, tile carpet T) and a processor that acquires desired information (here, height information) by processing the image captured by the camera 202c. It is an image sensor including 202p.

The sensor body 202 is fixed to the support arm 201 at a position and orientation such that the optical axis of the camera 202c extends horizontally in the orthogonal direction and passes over the mounting surface TS. By arranging in this way, the camera 202c can image the side surface of the tile carpet T placed on the transport surface TS of the conveyor 100. Further, the sensor main body 202 is connected to the control device CONT, and the height information acquired by the processor 202p can be sent to the control device CONT.

The illuminating device 203 illuminates the detection object so that the camera 202c can image the detection object satisfactorily. The lighting device 203 is fixed near the upper end of the support arm 201 in a manner capable of illuminating the side surface of the tile carpet T placed on the transport surface TS of the conveyor 100. Specifically, the lighting device 203 may be, for example, a white LED lighting device.

[Structure of removal device 310-340]
Of the removing devices 310 to 340, the removing devices 310 and 320 remove the pile layer L1 of the tile carpet T by cutting, and the removing devices 330 and 340 remove the adhesive layer L2 of the tile carpet T by cutting.

Since the removing devices 310 to 340 have the same structure as each other, the removing device 310 will be described below.

As shown in FIG. 1, the removing device 310 mainly includes a movable frame 10, a rotary cutter 20, a pressing mechanism 30, a feed mechanism 40, 40', a suction mechanism 50, and a rotary cutter cooling mechanism 60.

[Movable frame 10]
The movable frame 10 is a mechanism that supports the rotary cutter 20 so as to be movable up and down.

As shown in FIGS. 5 and 6, the movable frame 10 is formed on four columns 11 fixed to the frame 101 of the conveyor 100, a top plate 12 supported by the four columns 11, and four columns 11. A moving housing 13 that moves in the vertical direction along the moving housing 13 and a moving mechanism 14 that moves the moving housing 13 in the vertical direction are included.

Two of the four columns 11 are arranged side by side in the transport direction on both sides of the conveyor 100 in the orthogonal direction. Each of the four columns is a straight circular tube, and the lower end thereof is fixed to the frame 101 of the conveyor 100. In FIG. 6, only the central axis of each support column 11 is drawn in order to avoid complication of the drawing.

The top plate 12 is supported by four columns 11 and is arranged horizontally across the conveyor 100 in the orthogonal direction. The top plate 12 is a rectangular plate-shaped member having an orthogonal direction as a longitudinal direction and a transport direction as a lateral direction, and the upper ends of four columns 11 are fixed in the vicinity of the four corners. A through hole 12h1 is provided in the central portion of the top plate 12, and a through hole 12h2 is provided in the vicinity of the through hole 12h1.

The moving housing 13 includes a peripheral wall 131 and a top plate 132 fixed to the upper edge of the peripheral wall 131.

The peripheral wall 131 includes a pair of side walls 131s, a front wall 131f connecting the front ends of the pair of side walls 131s in the orthogonal direction, and a rear wall 131r connecting the rear ends of the pair of side walls 131s in the orthogonal direction.

Each of the pair of side wall 131s is a substantially rectangular plate-shaped member having a longitudinal direction in the transport direction and a lateral direction in the vertical direction, and a convex portion 131s1 protruding downward is provided at a substantially central portion in the transport direction. .. A through hole 131sh (see FIG. 5; not shown in FIG. 6 to avoid complication of drawing) is provided at the center of each of the pair of side walls 131s in the transport direction.

The front wall 131f and the rear wall 131r are rectangular plate-shaped members having an orthogonal direction as a longitudinal direction and a vertical direction as a lateral direction. The front wall 131f is provided with a rectangular opening 131fa having an orthogonal direction as a longitudinal direction and a vertical direction as a lateral direction.

The top plate 132 is a plate-shaped member having an orthogonal direction as a longitudinal direction and a transport direction as a lateral direction. The dimension of the top plate 132 in the orthogonal direction is larger than the distance between the outer surfaces of the pair of side walls 131s facing in the orthogonal direction, and the dimension of the top plate 132 in the transport direction is the outer surface of the front wall 131f and the rear wall 131r facing in the transport direction. Greater than the distance between. Therefore, when the top plate 132 is fixed to the peripheral wall 131, the region near the outer edge of the top plate 132 projects on both sides in the orthogonal direction and both sides in the transport direction of the peripheral wall 131. This protruding portion is called an eaves region 132e.

Circular through holes 132h are provided in the vicinity of the four corners of the top plate 132, respectively. All four through holes 132h are provided in the eaves region 132e. Each of the four columns 11 is inserted into each of the four through holes 132h1.

A notch 132n is provided at the center of the short side on the left side of the top plate 132. The notch 132n is provided in the eaves region 132e.

The moving mechanism 14 is hooked between the ball screw moving member 141, the ball screw 142, the servomotor 143, the pulley 144 fixed to the output shaft 143a of the servomotor 143, and the ball screw moving member 141 and the pulley 144. Mainly includes the passed belt 145.

The ball screw moving member 141 has a shape in which the first annular portion R1, the second annular portion R2, and the third annular portion R3 are coaxially connected, and the first annular portion R1 is provided along the central axis. , A female screw fs penetrating the second annular portion R2 and the third annular portion R3 is formed.

The first annular portion R1 is located on the upper side of the top plate 12, the second annular portion R2 is located in the through hole 12h1 of the top plate 12, and the third annular portion R3 is located on the lower side of the top plate 12. There is. A bearing (not shown) is arranged between the outer peripheral surface of the second annular portion R2 and the inner peripheral surface of the through hole 12h1.

The outer diameter of the first annular portion R1 and the outer diameter of the third annular portion R3 are larger than the inner diameter of the through hole 12h1. Therefore, the ball screw moving member 141 can only rotate with respect to the top plate 12, and cannot move in the vertical direction.

The lower end of the ball screw 142 is fixed to the center of the upper surface of the top plate 132 of the moving housing 13. The upper end of the ball screw 142 is screwed into the female screw fs of the ball screw moving member 141.

The servomotor 143 is provided on the upper surface of the top plate 12. The output shaft 143a of the servomotor 143 extends vertically downward and passes through the through hole 12h2 of the top plate 12. A pulley 144 is fixed to the output shaft 143a on the lower side of the top plate 12.

The servomotor 143 is connected to the control device CONT, and the amount of rotation of the output shaft 143a is precisely controlled by the control device CONT. The amount of rotation of the output shaft 143a is detected by a rotation position detector (encoder) built in the servomotor 143 and sent to the control device CONT.

The belt 145 is hung between the outer peripheral surface of the third annular portion R3 of the ball screw moving member 141 and the pulley 144.

When the output shaft 143a of the servomotor 143 is controlled by the control device CONT and rotates, the ball screw moving member 141 rotates via the pulley 144 and the belt 145. As a result, the ball screw 142 moves in the vertical direction, and the moving housing 13 and the rotary cutter 20 move in the vertical direction. The control device CONT can precisely control the amount of rotation of the output shaft 143a of the servomotor 143, and thus can precisely control the vertical position of the rotary cutter 20. The positioning resolution of the vertical position of the rotary cutter 20 is, for example, about 0.02 mm to 0.05 mm.

[Rotating cutter 20]
The rotary cutter 20 is a cutter that cuts the surface (here, the pile layer L1) of the tile carpet T placed on the transport surface TS of the conveyor 100.

The rotary cutter 20 is fixed to the rotary shaft 20A (FIG. 7A). The rotation shaft 20A is rotatably supported by a pair of through holes 131sh provided in the pair of side walls 131s of the moving housing 13 and extends in the orthogonal direction. Bearings (not shown) are arranged between each of the pair of through holes 131sh and the rotating shaft 20A.

As shown in FIG. 7A, the rotary cutter 20 includes nine rotary blades 21 and eight spacers 22. The nine rotary blades 21 and the eight spacers 22 are alternately arranged along the rotary shaft 20A, and one spacer 22 is provided between the two adjacent rotary blades 21.

As shown in FIG. 8, each of the nine rotary blades 21 has an annular main body portion 211, twelve support bases 212 provided at equal intervals along the outer circumference of the main body portion 211, and support bases 212. Includes chips 213 fixed to each.

The support base 212 has a front surface 212f facing the front side in the rotation direction of the rotary cutter 20, a top surface 212t facing the radial outside of the rotary cutter 20, and a rear surface 212r facing the rear side in the rotation direction of the rotary cutter 20. It is a convex part of a trapezoidal shape.

The tip 213 is a substantially rectangular parallelepiped, and one of the twelve ridges is a cutting edge 213e. The chip 213 is fixed to the front surface 212f of the support base 212 by bolts or the like so that the cutting edge 213e extends in the direction of the rotation axis of the rotation cutter 20 on the front side in the rotation direction and the outside in the radial direction.

Each of the eight spacers 22 has an annular shape. The thickness of the spacer 22 is slightly smaller than the thickness of the main body 211 of the rotary blade 21. The outer diameter of the spacer 22 is smaller than the outer diameter of the main body 211 of the rotary blade 21.

The nine rotary blades 21 and the eight spacers 22 are coaxially fixed to the rotary shaft 20A, respectively. In order to disperse the cutting load (cutting resistance) in the circumferential direction of the rotary cutter 20, the nine rotary blades 21 are positioned so as to be shifted in the circumferential direction with respect to each other so that the positions of the chips 213 possessed by each are different in the circumferential direction. Is fixed to the rotating shaft 20A.

The motor M for driving the rotary cutter 20 is installed on the upper surface of the top plate 132 of the moving housing 13 (FIGS. 5 and 6). The motor M is arranged near the left end of the top plate 132 in the orthogonal direction so that the output shaft Ma of the motor M extends in the orthogonal direction and is located above the notch 132n of the top plate 132.

The rotary cutter 20 and the motor M are the first pulley PL1 fixed to the end located on the left side in the orthogonal direction of the rotary shaft 20A, the second pulley PL2 fixed to the output shaft Ma of the motor M, and the first and first pulleys PL1. The two pulleys PL1 and PL2 are connected by a belt BL (not shown in FIG. 6). The belt BL passes through the notch 132n of the top plate 132.

[Holding mechanism 30]
When the rotary cutter 20 cuts the pile layer L1 of the tile carpet T, the pressing mechanism 30 attaches the tile carpet T to the transport surface TS in order to prevent the tile carpet T from rising or misaligning and wrapping around the rotary cutter 20. It is a pressing mechanism. The pressing mechanism 30 is provided below the rotary cutter 20.

The pressing mechanism 30 includes a pressing member 31 and a supporting mechanism (pressing member position adjusting mechanism) 32 that supports the pressing member 31 so as to be vertically movable.

As shown in FIG. 6, the pressing member 31 is a substantially rectangular parallelepiped, and is formed of, for example, a resin such as ultra-high molecular weight polyethylene as an example. Recesses 31r are provided in substantially the entire upper surface of the pressing member 31. Inside the recess 31r, the lower portion of the rotary cutter 20 and the lower end portion of the moving housing 13 are housed.

As shown in FIG. 9A, the recess 31r is a rectangle whose longitudinal direction is the orthogonal direction in a plan view. In the recess 31r, nine rotary blade accommodating regions 31r1 and eight spacer accommodating regions 31r2 are alternately provided in the orthogonal direction. Further, a housing accommodating area 31r3 is provided outside the rotary blade accommodating area 31r1 located at both ends in the orthogonal direction.

In a state where the pressing member 31 is arranged below the rotary cutter 20, the rotary blade accommodating area 31r1 is located below the rotary blade 21 of the rotary cutter 20. Therefore, the lower portion of the rotary blade 21 of the rotary cutter 20 is accommodated in the rotary blade accommodating area 31r1.

The spacer accommodating area 31r2 is located below the spacer 22 of the rotary cutter 20 in a state where the pressing member 31 is arranged below the rotary cutter 20. Therefore, the lower portion of the spacer 22 of the rotary cutter 20 is accommodated in the spacer accommodating area 31r2.

In a state where the pressing member 31 is arranged below the rotary cutter 20, the housing accommodating area 31r3 is located below the side wall 131s of the moving housing 13. Therefore, the lower portion of the side wall 131s of the moving housing 13 is housed in the housing housing area 31r3.

The recess 31r has a pair of arcuate bottom surfaces b1 and a penetrating portion th provided between the bottom surfaces b1 in the rotary blade accommodating region 31r1 as shown in the cross-sectional view shown in FIG. 9B. In a state where the lower portion of the rotary cutter 20 is accommodated in the recess 31r, the cutting edge 213e of the cutter 20 projects below the pressing member 31 via the penetrating portion th.

The recess 31r has arc-shaped bottom surfaces b2 and b3 in the spacer accommodating area 31r2 and the housing accommodating area 31r3 as shown in the cross-sectional views shown in FIGS. 9 (c) and 9 (d). In a state where the lower portion of the rotary cutter 20 is housed in the recess 31r, the spacer 22 of the cutter 20 faces the bottom surface b2, and the lower edge of the side wall 131s of the moving housing 13 faces the bottom surface b3.

As shown in FIGS. 9 (a) to 9 (d), arcuate surfaces 31c are provided on the front surface and the rear surface in the region excluding the vicinity of both ends in the orthogonal direction of the pressing member 31. The arcuate surface 31c faces the feed rollers 41 (described later) of the feed mechanisms 40 and 40'.

As shown in FIGS. 9 (b) to 9 (d), in the region excluding the vicinity of both ends in the orthogonal direction of the pressing member 31, both ends of the lower surface 31u in the conveying direction are separated from the central portion of the pressing member 31 in the conveying direction. A tapered surface 31t is formed so as to go upward.

Two through holes 31h are provided in the vicinity of both ends of the pressing member 31 in the orthogonal direction, respectively, which are arranged in the transport direction and extend in the vertical direction.

The support mechanism (holding member position adjusting mechanism) 32 includes four columns (guide members) 321, two stop plates (retaining portions) 322, and four coil springs (urging members) 323.

The four columns 321 are provided side by side in the transport direction, two on each side of the conveyor 100 in the orthogonal direction. Each of the four columns 321 is a straight round bar, which is fixed to the upper surface of the reinforcing beam 101e at the lower end and extends in the vertical direction. Each of the four columns 321 is inserted into the through hole 31h of the pressing member 31.

Each of the two stop plates 322 is a flat plate having a longitudinal direction in the transport direction and a lateral direction in the orthogonal direction, and is fixed to the upper ends of two columns 321 arranged in the transport direction.

Each of the four coil springs 323 is arranged so as to surround each of the four columns 321 and is connected to the stop plate 322 at the upper end portion and to the pressing member 31 at the lower end portion.

With the above configuration, the support mechanism 32 supports the pressing member 31 in a state of being suspended so as to be vertically movable via the stop plate 322 and the coil spring 323. Each of the coil springs 323 is slightly between the lower surface 31u of the pressing member 31 and the transport surface TS when only gravity acts on the pressing member 31 (that is, when the pressing member 31 is not in contact with the tile carpet T). It has a natural length and a spring constant such that a gap is defined.

[Cutting chamber CC]
The cutting chamber CC (FIG. 5) is defined by the moving housing 13 of the movable frame 10 and the pressing member 31 of the pressing mechanism 30. Specifically, the cutting chamber CC is a substantially closed space in which the lower surface of the top plate 132 is the upper surface, the inner surface of the peripheral wall 131 is the side surface, and the upper surface of the pressing member 31 is the lower surface. The rotary cutter 20 supported by the moving housing 13 is located inside the cutting chamber CC.

One end of the waste discharge duct DT is connected to the opening 131fa provided in the front wall 131f of the moving housing 13. An intake device AIN is connected to the other end of the waste discharge duct DT. The opening 131fa and the waste discharge duct DT are not shown in FIG.

[Rotary cutter cooling mechanism 60]
The rotary cutter cooling mechanism 60 is a mechanism for cooling the rotary cutter 20 by injecting cold air onto the rotary cutter 20. The rotary cutter cooling mechanism 60 is fixedly supported by the moving housing 13 and arranged in the cutting chamber CC.

As shown in FIG. 5, the rotary cutter cooling mechanism 60 is installed behind the position where the rotary cutter 20 cuts the tile carpet T (that is, the lower end of the rotary cutter 20) in the rotation direction of the rotary cutter 20. .. Further, the rotary cutter cooling mechanism 60 is installed on the downstream side of the position where the rotary cutter 20 cuts the tile carpet T in the transport direction.

The rotary cutter cooling mechanism 60 directs the four vortex tubes (jet cooler. Vortex cooler) (cold air generator) 61 and the cold air (low temperature air) supplied from the vortex tube 61 toward each of the rotary blades 21 of the rotary cutter 20. It has a manifold 62 to be sprayed, and an auxiliary unit 63 for supplying compressed air to the vortex tube 61 and recovering hot air (high temperature air) from the vortex tube 61. In the present embodiment and the present invention, "cold air" means a gas having a temperature of 10 ° C. or lower.

Each of the four vortex tubes 61 is a device that separates the compressed air supplied to the inside into cold air and hot air and ejects the compressed air, and any commercially available vortex tube can be used.

Each of the four vortex tubes 61 has a circular tubular main body 611, a cold air outlet 612 provided at one end of the main body 611, a hot air outlet 613 provided at the other end of the main body 611, and a main body 611. It has a compressed air supply port 614 provided on the outer peripheral surface.

The manifold 62 includes a straight and circular main pipe 621 extending in the orthogonal direction, four supply pipes 622 extending in the radial direction of the main pipe 621 from the outer peripheral surface of the main pipe 621, and a radial direction of the main pipe 621 from the outer peripheral surface of the main pipe 621. Includes nine extending nozzles 623.

In this embodiment, as shown in FIG. 7B, the nozzles 623 are arranged at substantially equal intervals along the direction of the central axis of the main pipe 621. Further, the supply pipe 622 is between the first and second nozzles 623 and between the third and fourth nozzles 623 and between the sixth and seventh nozzles 623 from one end of the main pipe 621. , Is arranged so as to be located between the 8th and 9th nozzles 623.

In this embodiment, as shown in FIG. 5, each of the four supply pipes 622 and each of the nine nozzles 623 are formed so as to extend on a single plane including the central axis of the main pipe 621.

The manifold 62 is fixed to the moving housing 13 via a frame (not shown) so that the central axes of the main pipe 621 coincide with each other in the orthogonal direction. In this state, each of the nine nozzles 623 extends along the radial direction of the rotary cutter 20, and the tips of the nine nozzles 623 face the outer peripheral portions of the nine rotary blades 21, respectively. The distance (separation distance) between the tip of the nozzle 623 and the outer peripheral portion (cutting blade 213e) of the rotary blade 21 in the radial direction of the rotary cutter 20 is, for example, 10 mm in a state where the positions in the circumferential direction of both are aligned. It can be about 15 mm.

The four supply pipes 622 of the manifold 62 are connected to the cold air outlets 612 of the four vortex tubes 61, respectively.

The auxiliary unit 63 discharges the compressor 631 that generates compressed air, the compressed air supply path 632 that sends the compressed air generated by the compressor 631 to each of the four vortex tubes 61, and the hot air discharged from the vortex tube 61. Includes hot air discharge path 633.

The compressed air supply path 632 is connected to the compressor 631 at one end, branches into four on the path, and is connected to the compressed air supply port 614 of the four vortex tubes 61 at the other end. The compressed air supply path 632 passes through four through holes (not shown) formed in the rear wall 131r of the moving housing 13.

The hot air discharge path 633 is open at one end, branches into four on the path, and is connected to the hot air discharge ports 613 of the four vortex tubes 61 at the other end. The hot air discharge path 633 passes through four through holes (not shown) formed in the rear wall 131r of the moving housing 13.

[Feed mechanism 40, 40']
The feed mechanism 40 is a mechanism for stably feeding the tile carpet T mounted on the transport surface TS to the lower side of the pressing member 30, and the feed mechanism 40'feeds the tile carpet T downstream from the pressing member 30. This is a mechanism for stably taking out the tile carpet T to be obtained from below the pressing member 30. The feed mechanism 40 is arranged on the upstream side of the pressing mechanism 30 in the transport direction, and the feed mechanism 40'is arranged on the downstream side of the pressing mechanism 30 in the transport direction.

The feed mechanisms 40 and 40'have substantially the same configuration. Hereinafter, the feed mechanism 40 will be mainly described, and only the differences between the feed mechanism 40'and the feed mechanism 40 will be described.

The feed mechanism 40 includes a feed roller 41, a pair of roller supports 42, a pair of movable columns 43, and two coil springs 44.

As shown mainly in FIG. 5, the feed roller 41 is a roller that abuts on the upper surface of the tile carpet T on the transport surface TS and feeds the tile carpet T to the downstream side, and has a shaft on the upstream side of the pressing member 31. They are arranged so that the directions match in the orthogonal direction. The axial dimension of the feed roller 41 is slightly smaller than the dimension of the transport surface TS in the orthogonal direction.

The pair of roller supports 42 are arranged on both sides of the feed roller 41 in the orthogonal direction, and support the feed roller 41 via a rotation axis (not shown). A motor (not shown) for rotating the feed roller 41 is connected to the roller support 42 arranged on the right side in the orthogonal direction. The motor is controlled by the control device CONT and rotates the feed roller 41 at a speed synchronized with the transfer speed of the conveyor 100.

The pair of movable columns 43 are columns that support the feed roller 41 and the roller support 42 so as to be vertically movable. Each of the pair of movable columns 43 is a linear round bar having a large-diameter flange portion 43f at the lower end portion. Each of the pair of movable columns 43 is arranged through a through hole 101eh provided in the reinforcing beam 101e of the conveyor 100, and the vicinity of the upper end is fixed to the front surface of the roller support 42.

Each of the two coil springs 44 is arranged so as to surround each of the pair of movable columns 43, and is connected to the reinforcing beam 101e at the upper end portion and to the flange portion 43f at the lower end portion.

With the above configuration, the feed roller 41 is supported above the transport surface TS so as to be vertically movable. Each of the coil springs 44 has a slight gap between the feed roller 41 and the transport surface TS when only gravity acts on the feed roller 41 (that is, when the feed roller 41 is not in contact with the tile carpet T). It has a natural length and spring constant as it is made. A roller position adjusting mechanism is configured by the movable column 43 and the coil spring 44.

The feed mechanism 40'has the same configuration as the feed mechanism 40, except that the movable column 43 is fixed to the rear surface of the roller support 42.

[Suction mechanism 50]
When the rotary cutter 20 cuts the pile layer L1 of the tile carpet T, the suction mechanism 50 sucks the lower surface of the tile carpet T in order to prevent the tile carpet T from rising or misaligning and wrapping around the rotary cutter 20. This is a mechanism for holding the tile carpet T on the transport surface TS.

The suction mechanism 50 is arranged below the transport surface TS below the rotary cutter 20, the pressing member 31, and the pair of feed rollers 41 (FIG. 18 (c)). In the present specification and the present invention, when the suction mechanism 50 is arranged below the transport surface TS, the portion of the suction mechanism 50 that comes into contact with the outside air and applies negative pressure to the surroundings is the transport surface TS. It means that it is placed on the lower side. Some devices (intake device 523, blower device 524, etc., which will be described later) constituting the suction mechanism 50 may be arranged at a position different from the lower side of the transport surface TS.

As shown in FIGS. 10, 11 (a) and 11 (b), the suction mechanism 50 mainly includes a chamber main body 51, an intake unit 52 (FIG. 11 (a)), and a waste discharge conveyor 53. ..

The chamber body 51 is a tank-shaped structure including a peripheral wall 511, two partition walls 512, and a bottom plate 513 (FIG. 11B). The chamber body 51 is arranged so that the upper edge of the peripheral wall 511 is slightly separated from the lower surface of the transport plate TP.

The peripheral wall 511 includes a pair of side walls 511s, a front wall 511f connecting the front ends of the pair of side walls 511s in the orthogonal direction, and a rear wall 511r connecting the rear ends of the pair of side walls 511s in the orthogonal direction.

Each of the pair of side wall 511s is a rectangular plate-shaped member having a transport direction as a longitudinal direction and a vertical direction as a lateral direction. The side wall 511s on the left side in the orthogonal direction is provided with three through holes 511sh arranged in the transport direction.

A slit 511ss that penetrates the side wall 511s and extends in the transport direction is provided near the lower side of the side wall 511s on the left side in the orthogonal direction. Grooves 511sg (FIGS. 11A and 11B) extending in the transport direction are provided on the inner surface of the side wall 511s on the right side in the orthogonal direction at a position corresponding to the slit 511ss.

The front wall 511f and the rear wall 511r are rectangular plate-shaped members having an orthogonal direction as a longitudinal direction and a vertical direction as a lateral direction. Grooves 511fg and 511rg extending in the orthogonal direction are provided on the inner surfaces of the front wall 511f and the rear wall 511r (FIG. 11A). The groove 511fg and 511rg are connected to the slit 511ss at one end and to the groove 511sg at the other end.

Each of the two partition walls 512 is a rectangular plate-shaped member having an orthogonal direction as a longitudinal direction and a vertical direction as a lateral direction. Each of the two partition walls 512 is fixed to the inner surface of a pair of side walls 511s at both ends in the orthogonal direction, whereby the inside of the peripheral wall 511 is substantially divided into three equal parts in the transport direction.

The bottom plate 513 is a flat plate having an orthogonal direction as a longitudinal direction and a transport direction as a lateral direction. The outer peripheral edge of the bottom plate 513 is supported by a guide G composed of a slit 511ss on the side wall 511s on the left side in the orthogonal direction, a groove 511sg on the side wall 511s on the right side in the orthogonal direction, a groove 511fg on the front wall 511f, and a groove 511rg on the rear wall 511r. In this state, it is arranged near the lower end of the peripheral wall 511. In this state, the upper surface of the bottom plate 513 abuts on the lower sides of the two partition walls 512.

Inside the peripheral wall 511, three chambers opened upward are defined by the inner surface of the peripheral wall 511, two partition walls 512, and a bottom plate 513. Hereinafter, they will be referred to as a first suction chamber SC1, a second suction chamber SC2, and a third suction chamber SC3 in order from the upstream side in the transport direction.

The first suction chamber SC1 to the third suction chamber SC3 are located in substantially the entire area of the transport surface TS in the orthogonal direction. Further, in the transport direction, the first suction chamber SC1 is generally located below the feed roller 41 of the feed mechanism 40, and the second suction chamber SC2 is located below the rotary cutter 20 and the pressing member 31. The third suction chamber SC3 is located below the feed roller 41 of the feed mechanism 40'(FIG. 18 (c)).

The intake unit 52 mainly includes three intake ports 521, three cylindrical filters 522, an intake device 523, a blower device 524, and an air flow path 525.

Each of the three intake ports 521 is attached to three through holes 511sh provided in the side wall 511s on the left side of the chamber body 51. Each of the three intake ports 521 has a substantially cylindrical shape.

The cylindrical filter 522 is a cylindrical filter having one end closed, and is attached to three intake ports 521 one by one via the other end of the opening and with the axial directions aligned in the orthogonal direction. As a result, the three cylindrical filters 522 are arranged one by one inside the first to third suction chambers SC1 to SC3.

The intake device 523 is a device that sucks air through the intake port 521, and the blower device 524 is a device that ejects air from the intake port 521, both of which are compressors as an example.

The air flow path 525 can have any structure such as a hose, a duct, and a bellows. One air flow path 525 is provided for each of the three intake ports 521. The air flow path 525 has a branch in the middle, and connects the intake port 521 to both the intake device 523 and the blower device 524. In addition, one intake device 523 and / or one blower 524 may be provided for each of the three intake ports 521.

The waste discharge conveyor 53 is a conveyor that discharges cutting waste discharged from the chamber body 51 (that is, waste of the pile layer L1 and the adhesive layer L2 that has flowed into the chamber body 51 through the gap g of the transport surface TS, details of which will be described later). Is. The waste discharge conveyor 53 is provided below the chamber body 51.

The waste discharge conveyor 53 mainly includes a frame 531 extending in the orthogonal direction, a pair of rollers 532 provided at both ends of the frame 531 and a belt 533 spanned by the pair of rollers 532. A motor (not shown) for rotating the rollers 532 is connected to one of the pair of rollers 532.

The distance between the pair of rollers 532 of the waste discharge conveyor 53 is larger than the dimension in the orthogonal direction of the chamber body 51, and the width of the belt 533 (the dimension in the transport direction) is larger than the dimension in the transport direction of the chamber body 51. Therefore, in a state where the waste discharge conveyor 53 is installed below the chamber body 51, the belt 533 is placed below the entire area of the first intake chamber SC1, the entire area of the second intake chamber SC2, and the entire area of the third intake chamber SC3. To position.

[Arrangement of removal devices 320 to 340]
The removal device 320 is provided on the downstream side of the removal device 310 at a position shifted in the direction orthogonal to the removal device 310.

Specifically, the removing device 320 refers to the removing device 310 so that the rotary blade 21 of the rotating cutter 20 of the removing device 320 is located at a position where the spacer 22 of the rotating cutter 20 of the removing device 310 is located in the orthogonal direction. Therefore, it is provided at a position shifted in the orthogonal direction by about the thickness of the spacer 22. As a result, the removing device 320 can remove the pile yarn P that has not been removed because it has passed below the spacer 22 in the removing device 310 in the pile layer L1 of the tile carpet T (details will be described later).

The removal device 330 is provided on the downstream side of the removal device 320 so that the position in the orthogonal direction coincides with the removal device 310. The removal device 340 is provided on the downstream side of the removal device 330 so that the position in the orthogonal direction coincides with the removal device 320.

[Backing layer cutting unit 400]
The backing layer cutting unit 400 is a unit that finely cuts (shreds) the backing layer L3 of the tile carpet T.

As shown in FIG. 12, the backing layer cutting unit 400 includes an upstream slope SL1 extending diagonally downward from the downstream end of the conveyor 100, a posture adjusting mechanism 70 arranged on the upstream slope SL1, and a downstream of the upstream slope SL1. It has a feed mechanism 80 arranged at an end, a downstream slope SL2 extending diagonally downward from the downstream end of the feed mechanism 80, and a cutting mechanism 90 arranged on the downstream side of the downstream slope SL2.

The upstream side slope SL1 is a slope that allows the backing layer L3 supplied from the conveyor 100 to flow downstream in the transport direction. The upstream slope SL1 is arranged so that the upstream end faces the downstream end of the conveyor 100.

The upper surface of the upstream slope SL1 can be formed of ultra-high molecular weight polyethylene as an example. Further, the upstream slope SL1 may have a metal plate portion that supports the upper surface formed of ultra-high molecular weight polyethylene from the lower side.

The posture adjusting mechanism 70 is a mechanism that adjusts the posture of the backing layer L3 that slides down on the upstream slope SL1 and aligns one side of the backing layer L3 in the transport direction.

As shown in FIGS. 13, 14 (a) and 14 (b), the attitude adjusting mechanism 70 is held upstream by a pair of side walls 71 and a pair of side walls 71 facing each other with the upstream slope SL1 sandwiched in the orthogonal direction. Attached to the beam portion 72 located above the upper surface of the side slope SL1, the left air cylinder 731 and the right air cylinder 732 supported by the beam portion 73, the left side adjusting plate 741 attached to the left side air cylinder 731, and the right side air cylinder 732. It mainly has a right side adjusting plate 742 and a sensor 75 attached to the side wall 71.

Each of the pair of side walls 71 is a rectangular flat plate having a longitudinal direction as a transport direction and a lateral direction as a vertical direction. The pair of side walls 71 are arranged on both sides of the upstream slope SL1 in the orthogonal direction perpendicular to the upper surface of the upstream slope SL1.

The beam portion 72 is a bar having a rectangular cross section. Both ends of the beam portion 72 are fixed to the pair of side walls 71 in the vicinity of the upper end of the central portion of the pair of side walls 71 in the transport direction.

The left air cylinder 731 has a cylindrical cylinder 731s and a rod 731r projecting to the left along the central axis of the cylinder 731s from the left end of the cylinder 731s. The left air cylinder 731 is fixed to the beam portion 72 via a support arm 731a extending in the vertical direction. As a result, the central axis of the cylinder 731s is arranged horizontally along the orthogonal direction.

The right air cylinder 732 has a cylindrical cylinder 732s and a rod 732r projecting to the right along the central axis of the cylinder 732s from the right end of the cylinder 732s. The right air cylinder 732 is fixed to the beam portion 72 via a support arm 732a extending in the vertical direction. As a result, the central axis of the cylinder 732s is arranged horizontally along the orthogonal direction so as to coincide with the central axis of the cylinder 731s.

The left air cylinder 731 and the right air cylinder 732 are each connected to the air pressure control unit (not shown) via an air pipeline (not shown). The barometric pressure control unit is connected to the control unit CONT. The air pressure control unit moves the rods 731r and 732r in the direction of the central axis of the cylinders 731s and 732s by adjusting the air pressure inside the cylinders 731s and 732s via the air pipeline.

The left side adjusting plate 741 and the right side adjusting plate 742 are each a rectangular plate material, and are formed of polyacetal as an example.

The left side adjusting plate 741 is fixed to the tip of the rod 731r of the left side air cylinder 731 so that the longitudinal direction coincides with the transport direction, the lateral direction coincides with the vertical direction, and the thickness direction coincides with the orthogonal direction. Similarly, the right side adjusting plate 742 is fixed to the tip of the rod 732r of the right air cylinder 732 so that the longitudinal direction coincides with the transport direction, the lateral direction coincides with the vertical direction, and the thickness direction coincides with the orthogonal direction. There is. The lower end of the left adjustment plate 741 and the lower end of the right adjustment plate 742 are in sliding contact with the upper surface of the upstream slope SL1.

With the above configuration, the left side adjusting plate 741 and the right side adjusting plate 742 are arranged so as to face each other in the orthogonal direction. Further, the distance in the orthogonal direction between the left side adjusting plate 741 and the right side adjusting plate 742 changes according to the operation of the left side air cylinder 731 and the right side air cylinder 732.

The sensor 75 is a sensor for detecting the passage of the backing layer L3, and is arranged near the upstream end of the side wall 71. As the sensor 75, an optical sensor can be used as an example. The sensor 75 is connected to the control unit CONT.

When the sensor 75 detects the passage of the backing layer L3, the left side adjusting plate 741 and the right side adjusting plate 742 are moved so as to sandwich the backing layer L3 in the orthogonal direction, and the posture of the backing layer L3 is adjusted (details will be described later). ..

The feeding mechanism 80 is a mechanism that feeds the backing layer L3 whose posture has been adjusted by the posture adjusting mechanism 70 to the cutting mechanism 90 at a predetermined speed while maintaining the posture.

As shown in FIGS. 13, 14 (a), and 14 (b), the feed mechanism 80 includes a pair of feed conveyors 81 arranged in orthogonal directions and a pair of stop air arranged between the pair of feed conveyors 81. It mainly has a cylinder 82, a feed roller (holding roller) 83 arranged above the pair of feed conveyors 81, and a sensor 84 arranged between the pair of feed conveyors 81 and below the feed roller 83.

Each of the pair of feed conveyors 81 is a conveyor for feeding the backing layer L3 to the cutting mechanism 90 at a desired speed.

Each of the pair of feed conveyors 81 includes a frame 811 extending in the transport direction, a pair of rollers 812 provided at both ends of the frame 811 and a belt 813 spanned by the pair of rollers 812. A motor (not shown) for rotating the rollers 812 is connected to one of the pair of rollers 812.

The pair of feed conveyors 81 are arranged at intervals in the orthogonal direction. The upper surface 813u of each belt 813 of the pair of feed conveyors 81 is flush with the upper surface of the upstream slope SL1.

The pair of stopping air cylinders 82 are mechanisms that abut on the front end of the backing layer L3 that moves in the transport direction to temporarily stop the progress of the backing layer L3. The pair of stopping air cylinders 82 are arranged side by side in the orthogonal direction between the pair of feed conveyors 81 on the upstream side of the roller 812 on the downstream side of the pair of feed conveyors 81.

Each of the pair of stopping air cylinders 82 has a cylindrical cylinder 82s and a rod 82r protruding from one end of the cylinder 82s along the central axis of the cylinder 82s. Each of the pair of stopping air cylinders 82 is installed so that the central axes of the cylinders 82s coincide with each other in the vertical direction. An air pipeline (not shown) and an air pressure control unit (not shown) are connected to each of the pair of stop air cylinders 82, and the air pressure control unit is connected to the control unit CONT.

The feed roller 83 is a roller for feeding the backing layer L3 to the cutting mechanism 90 at a desired speed with the backing layer L3 sandwiched in the vertical direction together with the pair of feed conveyors 81.

The feed roller 83 is provided at the downstream end of the pair of feed conveyors 81 so that the rotation axes coincide with each other in the orthogonal direction. Further, in the transport direction, the position of the rotating shaft of the feed roller 83 coincides with the position of the rotating shaft of the roller 812 on the downstream side of the pair of feed conveyors 81.

The length of the feed roller 83 in the rotation axis direction is substantially equal to the width of the upstream slope SL1 in the orthogonal direction. Further, a predetermined gap suitable for sandwiching the backing layer L3 up and down by the feed roller 83 and the feed conveyor 81 is provided between the lower end of the feed roller 83 and the upper surface 813u of the belt 813 of the feed conveyor 81. ing.

The feed roller 83 is supported by a support portion (not shown). A motor (not shown) is connected to the support portion. The feed roller 83 rotates at a predetermined speed under the control of the control unit CONT connected to the motor. The feed roller 83 may be a driven roller that is not connected to the motor. The support by the support portion of the feed roller 83 may be supported in such a manner that it does not move in the vertical direction. Alternatively, the feed roller 83 may be supported so as to be movable in the vertical direction by a mechanism similar to the feed mechanisms 40 and 40'of the removal devices 310-340.

The sensor 84 is a sensor for detecting whether or not the backing layer L3 is present on the downstream side of the feed roller 83, and an optical sensor can be used as an example. The sensor 84 is arranged between the pair of feed conveyors 81 and below the feed roller 83. The sensor 84 is connected to the control unit CONT.

When the sensor 84 detects that the backing layer L3 does not exist on the downstream side of the feed roller 83, the rods 82r of the pair of stopping air cylinders 82 are housed in the cylinder 82s, and the feed conveyor 81 and the feed roller 83 are driven. Then, the backing layer L3 to be cut is started to be sent to the cutting mechanism 90 (details will be described later).

The downstream slope SL2 supports the backing layer L3 fed to the cutting mechanism 90 by the feeding mechanism 80 from below. The downstream side slope SL2 is arranged so that the upstream end faces the downstream end of the feed conveyor 81 and the downstream end is located in the vicinity of the cutting blade unit CU (described later) of the cutting mechanism 90.

The cutting mechanism 90 is a mechanism for finely cutting the backing layer L3 fed by the feeding mechanism 80.

The cutting mechanism 90 mainly includes a housing 91, a cutting blade unit CU including an upper cutting blade 92 and a lower cutting blade 93 arranged in the housing 91, and a motor 94 for rotating the cutting blade unit CU. ..

The housing 91 is a box body having an opening 91A on the upper surface.

On the downstream side of the opening 91A in the transport direction, an upper cutting blade 92 and a lower cutting blade 93 facing each other in the vertical direction are provided.

As shown in FIG. 15A, the upper cutting blade 92 has a rotary shaft 92A and a large number of rotary cutting blades 921, and the lower cutting blade 93 has a rotary shaft 93A and a large number of rotary cutting blades 931. ..

As shown in FIG. 15B, the rotary cutting blades 921 and 931 have an annular main body portions 921M and 931M, and a plurality of cutting edge portions 921E provided on the outer periphery of the main body portions 921M and 931M along the circumferential direction, respectively. It has 931E and. Each of the plurality of cutting edge portions 921E and 931E has cutting blades 921Ee and 931Ee on the front side in the rotation direction.

A large number of rotary cutting blades 921 and 931 are coaxially fixed to the rotary shafts 92A and 93A. In order to disperse the cutting load (cutting resistance) in the circumferential direction of the upper cutting blade 92 and the lower cutting blade 93, the positions of the cutting blades 921Ee and 931Ee of the rotary cutting blades 921 and 931 are different in the circumferential direction. , They are fixed to the rotating shafts 92A and 93A at positions shifted in the circumferential direction with respect to each other. The virtual line Le connecting the positions of the cutting blades 921Ee and 931Ee is shown by a dotted line in FIG. 15 (a). In the present specification and the present invention, the angle θ between the virtual line Le and the axial direction is referred to as a lead angle.

The upper cutting blade 92 is rotatably supported by the housing 91 at both ends of the rotating shaft 92A so that the rotating shaft 92A is aligned in the orthogonal direction. The lower cutting blade 93 is rotatably supported by the housing 91 at both ends of the rotating shaft 93A so that the rotating shaft 93A is aligned in the orthogonal direction.

As shown in FIG. 15A, the upper cutting blade 92 and the lower cutting blade 93 are located between the rotary cutting blade 931 of the lower cutting blade 93 in the axial direction with the rotary cutting blade 921 of the upper cutting blade 92. The rotary cutting blade 931 of the lower cutting blade 93 is arranged so as to be located between the rotary cutting blades 921 of the upper cutting blade 92 in the axial direction.

The motor 94 is arranged inside the housing 91. The motor 94 is connected to the upper cutting blade 92 by a power transmission mechanism (not shown), and the upper cutting blade 92 is connected to the lower cutting blade 93 by a power transmission mechanism (not shown). Further, the motor 94 is connected to the control unit CONT. The driving force of the motor 94 is transmitted to the upper cutting blade 92 and the lower cutting blade 93 via a power transmission mechanism (not shown), and the upper cutting blade 92 and the lower cutting blade 93 are transferred to the backing layer L3 on the downstream side in the transport direction. Rotate in the direction of pulling into.

Next, a method of dismantling the tile carpet T using the tile carpet dismantling system 1000 will be described.

As shown in FIG. 16, the method of disassembling the tile carpet T using the tile carpet dismantling system 1000 is to use the tile carpet mounting step S1 for mounting the tile carpet T on the transport surface TS of the conveyor 100 and the sensor unit 200. The height information acquisition step S2 for acquiring the height information of the tile carpet T, the pile layer removing step S3 for removing the pile layer L1 using the removing devices 310 and 320, and the adhesive layer L2 using the removing devices 330 and 340. The adhesive layer removing step S4 for removing the above-mentioned material and the backing layer cutting step S5 for cutting the backing layer L3 using the backing layer cutting unit 400 are included.

[Tile carpet placement process S1]
In the tile carpet placing step S1, a large number of tile carpets T accumulated for dismantling are sequentially placed on the transport surface TS of the conveyor 100.

The tile carpet T is collected and accumulated from a state of being fixed to the floor surface of an office or the like with an adhesive, and an adhesive is usually applied to the lower surface (back surface) of the backing layer L3 of the tile carpet T. It remains. In addition, dirt such as debris may be attached via the adhesive.

In addition, since many manufacturers each manufacture and sell various types of tile carpets, a large number of types are distributed and used. Therefore, the pile layer height h1, the adhesive layer height h2, the backing layer height h3, and the tile height H of the collected and accumulated tile carpets are different for each product and may be different between the same products. For example, even if the same product is used, the pile layer L1 may be compressed and the pile layer height h1 may become smaller as the tile carpet has been used for a longer period of time.

The tile carpet T is placed on the transport surface TS with the pile layer L1 facing up so that one side of the tile carpet T coincides with the transport direction of the conveyor 100. The tile carpet T may be placed on the transport surface TS by an operator manually or by using an automatic feeder. Further, a mechanism similar to the posture adjusting mechanism 70 of the backing layer cutting unit 400 may be provided on the upstream side of the sensor unit 200 to adjust the posture of the tile carpet T.

When the tile carpet T is placed on the transport surface TS, the lower surface of the backing layer L3 comes into contact with the transport surface TS defined by the resin plate RP made of ultra-high molecular weight polyethylene. At this time, since the ultra-high molecular weight polyethylene has excellent non-adhesiveness, adhesion of an adhesive or the like to the transport surface TS is suppressed.

When the adhesive adheres to the transport surface TS, for example, when the tile carpet T is sent to the backing layer cutting unit 400 at the downstream end of the conveyor 100, the tile carpet T does not satisfactorily leave the transport surface TS. Alternatively, there may be a problem that the tile carpet dismantling system 1000 has a downtime to remove the adhesive on the transport surface TS. Suppressing the adhesion of the adhesive or the like to the transport surface TS is advantageous in that these problems can be alleviated.

[Height information acquisition process S2]
In the height information acquisition step S2, the sensor unit 200 acquires the height information of the tile carpet T that is placed on the transport surface TS and is transported in the transport direction, and sends this to the control device CONT.

Specifically, first, the camera 202c of the sensor main body 202 captures a side image (side information) of the tile carpet T. Next, the processor 202p of the sensor main body 202 obtains the height information included in the captured side image, that is, the pile layer height h1, the adhesive layer height h2, the backing layer height h3, and the tile height H.

The processor 202p transports the pile layer height h1, the adhesive layer height h2, the backing layer height h3, and the tile height H at three locations along one side of the tile carpet T (for example, near the front end in the transport direction and transports). The measured values are obtained at the center of the direction and near the rear end in the transport direction, and the arithmetic average values of these three measured values are calculated as the pile layer height h1, the adhesive layer height h2, the backing layer height h3, and the tile height H. Is sent to the control device CONT.

[Pile layer removing step S3]
In the pile layer removing step S3, the removing devices 310 and 320 remove the pile layer L1 of the tile carpet T which is placed on the conveying surface TS and is conveyed in the conveying direction by cutting.

As described above, the rotary blades 21 of the rotary cutters 20 of the removal devices 310 and 320 are arranged discretely with the spacer 22 interposed therebetween in the orthogonal direction. The rotary blade 21 of the rotary cutter 20 of the removal device 310 and the rotary blade 21 of the rotary cutter 20 of the removal device 320 are arranged so as to be shifted in the orthogonal direction.

Therefore, the removing device 310 cuts the pile layer L1 in the striped first region TA1 (FIG. 17) that passes below the rotary blade 21 on the upper surface of the tile carpet T. The removal device 320 passes under the spacer 22 in the removal device 310 and below the rotary blade 21 in the remaining area of the upper surface of the tile carpet T, that is, in the removal device 320, the striped second region TA2 (FIG. 17). ), The pile layer L1 is cut.

In the processing of the first region TA1 by the removing device 310, first, the control device CONT adjusts the vertical position of the rotary cutter 20. The control device CONT uses the height information of the tile carpet T received from the sensor unit 200 to determine the optimum position of the rotary cutter 20 according to the pile layer height h1, and then drives the movable frame 10 to rotate. Adjust the position of the cutter 20.

Specifically, for example, the lowest point of the rotary cutter 20 (that is, the lowest position through which the rotating cutting edge 213e can pass) is set from the transport surface TS by (adhesive layer height h2) + (backing layer height h3). ) Is adjusted to the optimum position with the upper position as the reference position. The optimum position is, for example, a position represented by “reference position −α” using a preset constant value α. As shown in FIG. 2, when α is a positive value, the lowest point of the rotary cutter 20 is located slightly below the reference position, and the rotary cutter 20 covers the entire height direction of the pile layer L1. Remove. On the other hand, when α is a negative value, the lowest point of the rotary cutter 20 is arranged slightly above the reference position, and the rotary cutter 20 leaves the root of the pile layer L1 slightly and the pile layer L1. Remove almost the entire height direction of. The reference position may be set by using "(tile height H)-(pile layer height h1)" instead of "(adhesive layer height h2) + (backing layer height h3)". In addition, the reference position and the constant value α can be appropriately set according to the desired cutting mode.

After obtaining the optimum position of the rotary cutter 20, the control device CONT drives the servomotor 143 of the moving mechanism 14 of the movable frame 10 to move the rotary cutter 20 to the optimum position (FIG. 18A).

Next, the tile carpet T reaches the feed mechanism 40 and is sandwiched between the transport surface TS and the feed roller 41 that rotates in synchronization with the transport surface TS (FIG. 18 (b)). The tile carpet T enters below the feed roller 41 while lifting the feed roller 41 and the movable column 43 upward, and the coil spring 44 arranged around the movable column 43 is compressed. As a result, the vertical position of the feed roller 41 is adjusted to the optimum height according to the thickness of the tile carpet T. Further, the feed roller 41 is urged downward (on the transport surface TS side) by the coil spring 44, and sandwiches the tile carpet T together with the transport surface TS with sufficient force.

Next, the tile carpet T reaches the pressing mechanism 30, presses the tapered surface 31t of the pressing member 31, lifts the pressing member 31 upward, and flows to the lower side of the pressing member 31 (FIG. 18 (c)). At this time, since the tile carpet T is sandwiched between the feed roller 41 and the transport surface TS by the feed mechanism 40 with sufficient force and is flowed to the downstream side, the movement in the transport direction is stagnant, the position is displaced in the orthogonal direction, and so on. Alternatively, it flows satisfactorily to the lower part of the pressing member 31 without causing an inclination about the vertical direction.

The tile carpet T enters below the pressing member 31 while lifting the pressing member 31 upward, and the four coil springs 323 arranged so as to surround the four columns 321 are compressed. As a result, the vertical position of the pressing member 31 is adjusted to the optimum height according to the thickness of the tile carpet T, independently of the vertical position of the rotary cutter 20. In other words, the vertical distance between the rotary cutter 20 and the pressing member 31 is adjusted to an optimum distance according to the pile layer height h1 of the pile layer L1 to be cut. Further, the pressing member 31 presses the tile carpet T against the transport surface TS with sufficient force while being urged downward (on the transport surface TS side) by the four coil springs 323.

In this state, on the downstream side of the first region TA1 of the tile carpet T, there is a rotary blade 21 protruding downward through the through hole th of the rotary blade accommodating region 31r1 of the pressing member 31. On the other hand, on the downstream side of the second region TA2 of the tile carpet T, only the lower surface 31u on the lower side of the spacer accommodating region 31r2 of the pressing member 31 exists.

Below the pressing mechanism 30 and the feeding mechanisms 40 and 40', the suction mechanism 50 sucks the tile carpet T and holds it on the transport surface TS (FIG. 18 (c)). Specifically, the suction of the tile carpet T is performed as follows.

The suction mechanism 50 continuously drives the intake device 523 while disassembling a large number of tile carpets T. As a result, each of the first to third suction chambers SC1 to SC3 is evacuated via the air flow path 525, the intake port 521, and the cylindrical filter 522. Since the inside of the chamber body 51 is divided into the first to third suction chambers SC1 to SC3 having a small volume, the negative pressure in each chamber can be increased even if the intake device 523 has a small output.

Since the transport surface TS on which the tile carpet T is placed and the first to third suction chambers SC1 to SC3 are fluidly connected via a gap g, the lower surface of the tile carpet T on the transport surface TS is The negative pressure applied to the first to third suction chambers SC1 to SC3 causes suction to the transport surface TS. By this suction, the tile carpet T is held on the transport surface TS, and the movement of the tile carpet T in the transport direction is prevented from being stagnant, the position is displaced in the orthogonal direction, or the tile carpet T is tilted about the vertical direction.

Next, the cutting edge 213e of the rotary cutter 20 comes into contact with the pile yarn P of the first region TA1 of the tile carpet T that has flowed to the lower side of the rotary cutter 20 from the downstream side in the transport direction. As a result, the pile yarn P is cut and the pile layer L1 in the first region TA1 is removed (FIG. 18 (d)). This process is performed on the tile carpet T sufficiently pressed against the transport surface TS by the pressing mechanism 30 and the suction mechanism 50 by the rotary cutter 20 adjusted to the optimum position by the control device CONT and the movable frame 10.

That is, since the vertical position of the rotary cutter 20 is adjusted based on the height information of the tile carpet T, the cutting amount of the cutting edge 213e with respect to the tile carpet T is appropriate, and the pile layer L1 can be cut without excess or deficiency.

Further, if the depth of cut with respect to the cutting edge 213e and the tile carpet T is too large, the cutting resistance becomes large and the tile carpet T is caught and rolled up, or the backing layer L1 that is softened by heat generation due to friction with the cutting edge 213e is rotated. It may get caught in the cutter 20. By optimizing the cutting amount of the cutting edge 213e with respect to the tile carpet T, these defects can be prevented.

Further, when cutting with the rotary cutter 20, the holding mechanism 30 adjusted to the optimum position independently of the rotary cutter 20 and the suction mechanism 50 press the tile carpet T against the transport surface TS, so that the tile carpet T is cut by the rotary cutter 20. Even inside, the position of the tile carpet T can be stabilized. That is, the tile carpet T is prevented from being stagnant in the movement in the transport direction, being displaced in the orthogonal direction, being tilted or lifted about the vertical direction, and being wrapped around the rotary cutter 20. Further, when cutting with the rotary cutter 20, the feed mechanism 40 also plays a role of feeding the tile carpet T to the downstream side against the force of the rotary blade 21.

At the time of cutting by the rotary cutter 20, the cutter cooling mechanism 60 blows cold air (low temperature air) onto the rotary blade 21 to cool the rotary blade 21.

Specifically, the compressor 631 is driven to supply compressed air to the four vortex tubes 61 via the compressed air supply path 632. The four vortex tubes 61 separate the compressed air into cold air and hot air, and send the cold air to the manifold 62 via the cold air outlet 612. The manifold 62 blows the cold air supplied from the vortex tube 62 onto the nine rotary blades 21 via the nine nozzles 623.

The temperature of the cold air is about 0 ° C to -40 ° C as an example, the maximum temperature of the rotary cutter 20 without cooling is about 60 ° C to 100 ° C (instantaneous value) as an example, and the maximum temperature of the rotary cutter 20 when cooling is performed. As an example of the temperature, it is about 20 ° C. to 40 ° C.

By suppressing the temperature rise of the rotary blade 21 in this way, it is possible to prevent the tile carpet T from wrapping around the rotary cutter 20.

The temperature of the rotary blade 21 rises due to friction with the tile carpet T during cutting. When the temperature of the rotary blade 21 rises, the heat of the rotary blade 21 is transferred to the tile carpet T, the temperature of the backing layer L3 rises, the backing layer L3 softens, and it becomes easy to wind around the rotary cutter 20.

Further, when the temperature of the rotary blade 21 rises, thermal expansion occurs in the rotary blade 21, and the cut amount of the rotary blade 21 with respect to the tile carpet T may be larger than the set optimum value. As a result, the cutting resistance increases, and the tile carpet T is easily hooked and wound up.

In the present embodiment, since the cutter cooling mechanism 60 suppresses the temperature rise of the rotary cutter 20 by spraying cold air, the tile carpet T is prevented from wrapping around the rotary cutter 20 due to the temperature rise of the rotary blade 21. Will be done.

It is also conceivable to suppress the temperature rise of the tile carpet T by storing the tile carpet T before dismantling in a freezer or the like and cooling it in advance without providing the cutter cooling mechanism 60. Also in this case, it is possible to suppress the temperature rise and softening of the backing layer L3 and suppress the wrapping around the rotary cutter 20, but in the present embodiment using the cutter cooling mechanism 60, the time required to cool the tile carpet T is better. It is possible to disassemble a large number of tile carpets more efficiently because it does not require.

The dust of the pile yarn P generated by cutting by the rotary cutter 20 is confined in the cutting chamber CC and sucked out through the opening 131fa. In the present embodiment, since the waste discharge duct DT is arranged on the front side in the rotation direction of the rotary cutter 20, the waste of the pile yarn P wound up on the front side in the rotation direction of the rotary cutter 20 by cutting the pile layer L1 is satisfactorily sucked. It will be issued.

The tile carpet T from which the pile layer L1 of the first region TA1 has been removed by the rotary cutter 20 reaches the feed mechanism 40'and is sandwiched between the transport surface TS and the feed roller 41 that rotates in synchronization with the transport surface TS ( FIG. 18 (e). The vertical position of the feed roller 41 of the feed mechanism 40'is adjusted to an optimum height according to the thickness of the tile carpet T, similarly to the feed roller 41 of the feed mechanism 40. Further, the feed roller 41 is urged downward (on the transport surface TS side) by the coil spring 44, and sandwiches the tile carpet T together with the transport surface TS with sufficient force, whereby the tile carpet T is pressed by the pressing mechanism 30. Is sent from to the downstream side. The feed mechanism 40'prevents stagnation of movement in the transport direction, misalignment in the orthogonal direction, tilting about the vertical direction, and lifting of the tile carpet T, and the tile resists the force of the rotary blade 21. It also plays the role of sending the carpet T to the downstream side.

Subsequently, the removing device 320 removes the pile layer L1 of the second region TA2 by the same process as the removing device 310.

[Adhesive layer removing step S4]
In the adhesive layer removing step S4, the removing devices 330 and 340 remove the adhesive layer L2 of the tile carpet T placed on the transport surface TS and transported in the transport direction by cutting.

Specifically, the removing device 330 removes the adhesive layer L2 of the first region TA1 of the tile carpet T, and then the removing device 340 removes the adhesive layer L2 of the second region TA2 of the tile carpet T. In this step, the pile layers L1 of the first region TA1 and the second TA2 by the removing devices 310 and 320 are adjusted except that the rotary cutter 20 is adjusted to a vertical position suitable for removing the adhesive layer L2 instead of the pile layer L1. It is done in the same way as the removal of.

In adjusting the vertical position of the rotary cutter 20, for example, the lowest point of the rotary cutter 20 is adjusted from the transport surface TS to a reference position above the backing layer height h3. By arranging the rotary cutter 20 at such a position, the adhesive layer L2 of the tile carpet T can be removed without excess or deficiency by the cutting edge 213e. Further, as in the case of the removing devices 310 and 320, the position may be adjusted to the position represented by the "reference position-β" by using the preset constant value β.

[Backing layer cutting step S5]
In the backing layer cutting step S5, the backing layer cutting unit 400 finely cuts the tile carpet T in which the pile layer L1 and the adhesive layer L2 are removed and only the backing layer L3 is formed.

Specifically, first, the backing layer L3 is sent from the downstream end of the conveyor 100 to the upstream slope SL1. The backing layer L3 slides on the upper surface of the upstream slope SL1 and proceeds to the feed mechanism 80 (FIG. 19A).

At this time, the attitude adjusting mechanism 70 drives the left air cylinder 731 and the right air cylinder 732 in response to the detection by the sensor 75 that the backing layer L3 has approached the left side adjusting plate 741 and the right side adjusting plate 742. Then, the left side adjusting plate 741 and the right side adjusting plate 742 are moved inward in the orthogonal direction. By sandwiching the backing layer L3 in the orthogonal direction between the left side adjusting plate 741 and the right side adjusting plate 742, one side of the backing layer L3 coincides with the transport direction, and the central portion of the backing layer L3 in the orthogonal direction is the upstream slope SL1 and cutting. The posture of the backing layer L3 is adjusted so as to coincide with the central portion of the blade unit CU in the orthogonal direction (FIG. 19 (b)).

The backing layer L3 whose posture has been adjusted by the posture adjusting mechanism 70 slides further on the upstream slope SL1 to reach the feeding mechanism 80, and abuts on the rods 82r of the pair of stopping air cylinders 82 to stop (FIG. 19 (FIG. 19). c)). After that, the rods 82r of the pair of stopping air cylinders 82 are moved downward and the rods 82r of the pair of stopping air cylinders 82 are moved downward in response to the detection by the sensor 84 that the backing layer L3 to be cut immediately before is not present on the downstream side. A pair of feed conveyors 81 and feed rollers 83 are driven to feed the backing layer L3 to the cutting mechanism 90 (FIG. 19 (d)).

The backing layer L3 in a state sandwiched between the vertical direction by the feed roller 83 and the pair of feed conveyors 81, is sent to the cutting mechanism 90 at a predetermined feed speed V _80. Feed speed V ₈₀ is cut velocity V _C of the cutting blade unit _CU, that is, the upper cutting blade 92 and the lower cutting blade 93 is smaller than the speed of pulling the backing layer L3 in the transport direction by rotation. Specifically, for example, it may feed speed _{V 80} 0.8 times to 0.9 times the cutting speed _{V C.} The reason for this will be described later.

In the present specification and the present invention, the "cutting speed" is the speed at which an object to be processed, for example, a tile carpet is cut according to the rotation of the rotary blade (the speed at which the object to be processed moves in the transport direction at the time of cutting). ), And the "feeding speed" means the speed at which the object to be processed, for example, tile carpet, is fed in the transport direction according to the rotation of the roller. That is, the "cutting speed" and the "feeding speed" are the tangential speeds of the rotary blade and the roller.

The backing layer L3 is sandwiched between the pair of feed conveyors 81 and the feed rollers 83 on the rear side in the transport direction, and the front side in the transport direction is the upper cutting blade 92 and the lower cutting blade 93 of the cutting mechanism 90. It reaches between and is finely cut by the upper cutting blade 92 and the lower cutting blade 93. The dimensions and shape after cutting are, for example, a rectangle of about 2 mm × 8 mm (FIG. 19 (e)).

Thus, after adjusting the attitude of the backing layer L3, by cutting the backing layer L3 while feeding the backing layer L3 with a small feeding speed V ₈₀ than cutting velocity V _C of the cutting blade unit CU, the backing layer L3 Can be cut well. Specifically, for the following reasons.

As shown in FIG. 15A, the cutting blades 921Ee of the rotary cutting blade 921 of the upper cutting blade 92 are arranged so as to be shifted in the rotational direction as shown by the virtual line Le. The same applies to the cutting blade 931Ee of the rotary cutting blade 931 of the lower cutting blade 93. According to the present invention, when the feed mechanism 80 is not used, that is, when the backing layer L3 is inserted between the upper cutting blade 92 and the lower cutting blade 93 without restricting the movement of the backing layer L3, the backing layer L3 rotates. It has been observed that the backing layer L3 may be tilted due to the arrangement of the cutting blades 921Ee and 931Ee that shift in the direction. That is, the backing layer L3 is inclined so that the extending direction of the front end coincides with the extending direction of the virtual line Le, and is drawn into the cutting blade unit CU in a state where one side of the backing layer L3 does not match the conveying direction and is cut. ..

According to the findings of the present inventor, when the backing layer L3 is cut in such a state, it may be difficult to cut the backing layer L3 sufficiently finely. Further, since cutting is performed while being drawn in a direction deviating from the transport direction, the backing layer L3 may be clogged in the cutting blade unit CU, or a part of the backing layer L3 may be outside the end of the cutting blade unit CU in the orthogonal direction. It may stick out. In this case, problems such as abnormal stop of the cutting blade unit CU, winding of the backing layer L3 around the upper cutting blade 92 and the lower cutting blade 93, and generation of extremely large cutting debris may occur.

In the present embodiment, the posture adjusting mechanism 70 adjusts the posture of the backing layer L3, and the feed mechanism 80 maintains the adjusted posture. Therefore, the backing layer L3 has a cutting blade in a suitable posture in which one side matches the transport direction. Introduced to the unit CU.

In the present embodiment, the feed mechanism 80, introduces a backing layer L3 to the cutting blade unit CU while feeding the backing layer L3 with a small feeding speed V ₈₀ than cutting velocity V _C of the cutting blade unit CU. Therefore, when the front end of the backing layer L3 is drawn into the cutting blade unit CU, the front end of the backing layer L3 attempts to move the cutting speed V _C of the cutting blade unit CU. On the other hand this time, the rear end of the backing layer L3 are sandwiched between the rollers 82 feed a pair of feed conveyors 81 of the feed mechanism 80, to try to keep moving at a feedrate V _80. That is, the feed conveyor 81 and the feed roller 83 restrict the movement of the backing layer L3 by the cutting unit CU in the transport direction. Therefore, a pulling force is applied to the backing layer L3 in the transport direction, and this tensile force prevents the backing layer L3 from tilting.

As a result, the backing layer L3 can be introduced into the cutting blade unit CU in a suitable posture, and the backing layer L3 can be cut appropriately.

The cutting debris of the backing layer L3 discharged from the cutting blade unit CU is housed in an accommodating portion (not shown) in the housing 91. Then, for example, it is sent to the next process for recycling.

Next, a maintenance method for the suction mechanism 50 will be described.

When the pile layer L1 and the adhesive layer L2 of the tile carpet T are removed by the rotary cutter 20 in the removing device 310-340, the scraps of the pile layer L1 and the adhesive layer L2 (hereinafter collectively referred to as cutting scraps) are removed. Most of it is confined in the cutting chamber CC and sucked by the suction device AIN. However, a part thereof passes through the gap g, mixes with the first intake chamber SC1 to the third intake chamber SC3 of the suction mechanism 50, and adheres to the cylindrical filter 522 of the intake unit 52.

Therefore, when the tile carpet dismantling system 1000 is not in operation, the cylindrical filter 522 is cleaned. Specifically, cleaning is performed according to the following procedure.

First, the blower 524 is driven to eject air from the intake port 521 into the first intake chamber SC1 to the third intake chamber SC3 via the air flow path 525. As a result, the cutting chips adhering to the cylindrical filter 522 are blown off and accumulated on the bottom plate 513.

Next, the bottom plate 513 is pulled to the left in the orthogonal direction and removed from the chamber body 51. As a result, the cutting debris accumulated on the bottom plate 513 falls and accumulates on the belt 533 of the debris discharge conveyor 53. After that, a dust collection box is arranged on one side in the orthogonal direction of the waste discharge conveyor 53 to drive the waste discharge conveyor 53, and cutting chips are dropped into the dust collection box.

The advantageous effects of the tile carpet dismantling system 1000 and the tile carpet dismantling method of the present embodiment are summarized below.

[Conveyor 100]
In the conveyor 100 included in the tile carpet dismantling system 1000 of the present embodiment, the transport surface TP is formed by the resin plate RP formed of ultra-high molecular weight polyethylene. Since the ultra-high molecular weight polyethylene has excellent non-adhesiveness, adhesion of adhesives and stains remaining on the back surface of the backing layer L3 of the tile carpet T to the transport surface TP is suppressed. Therefore, the conveyor 100 can satisfactorily convey the tile carpet in which the adhesive remains on the back surface. Further, even if adhesion occurs, it can be easily wiped off, so that maintenance work of the conveyor 100 such as cleaning of the transport surface TS can be reduced, and a large amount of tile carpet T can be efficiently disassembled.

[Removal device 310-340]
The removal device 310-340 included in the tile carpet dismantling system 1000 of the present embodiment includes a rotary cutter 20 supported so as to be vertically movable by a movable frame 10, and the height information of the tile carpet T acquired by the sensor unit 200. After adjusting the vertical position of the rotary cutter 20 based on the side surface information, the pile layer L1 and the adhesive layer L2 of the tile carpet T are removed. In this way, since the rotary cutter 20 is adjusted to the optimum position according to the tile carpet T to be processed next, it is troublesome to classify the tile carpet and the height of the rotary cutter is manually adjusted according to the type of tile carpet. It is possible to efficiently disassemble various types of tile carpets T without the trouble of adjusting with.

Further, as described above, the side information of the tile carpet may differ between tile carpets of the same type depending on the usage situation and the like. Therefore, in the conventional method of manually adjusting the height of the rotary cutter according to the type of tile carpet, even if the position of the rotary cutter is adjusted, problems such as wrapping of the tile carpet around the rotary cutter may occur. That has been observed by the present inventor.

In this respect, the removal device 310-340 included in the tile carpet dismantling system 1000 of the present embodiment performs the vertical position of the rotary cutter 20 based on the side information of the actual tile carpet to be cut. Therefore, the floating of the tile carpet T and the wrapping around the rotary cutter 20 are better prevented.

In the removal devices 310 to 340 included in the tile carpet dismantling system 1000 of the present embodiment, the pressing member 31 is supported so as to be vertically movable by the support mechanism 32, and the vertical position of the pressing member 31 is from the vertical position of the rotary cutter 20. Adjusted independently. In this way, the pressing member 31 is arranged at an optimum position according to the height of the tile carpet T to be processed next without being affected by the movement of the rotary cutter 20, so that it takes time and effort to classify the tile carpet. There is no need to manually adjust the height of the holding member according to the type of tile carpet, and many types of tile carpet T can be efficiently disassembled.

Also, as described above, the side information of the tile carpet may differ between tile carpets of the same type. Therefore, in the conventional method of manually adjusting the height of the holding member according to the type of tile carpet, even if the position of the holding member is adjusted, there are problems such as the tile carpet rising and wrapping around the rotary cutter. Has been observed by the present inventor.

In this respect, the removal device 310-340 included in the tile carpet dismantling system 1000 of the present embodiment sets the vertical position of the pressing member 31 independently of the vertical position of the rotary cutter 20 and is based on the actual tile carpet to be cut. To do. Therefore, wrapping of the tile carpet T around the rotary cutter 20 is better prevented.

The removal device 310-340 included in the tile carpet dismantling system 1000 of the present embodiment includes a cutter cooling mechanism 60 that cools the rotary cutter 20 using cold air. Therefore, the temperature rise of the rotary cutter 20 can be suppressed, the softening of the tile carpet T due to the temperature rise of the tile carpet T, and the thermal expansion of the rotary cutter 20 can be suppressed.

By suppressing the softening of the tile carpet T, the winding of the tile carpet T around the rotary cutter 20 is also suppressed. Further, by suppressing the thermal expansion of the rotary cutter 20, the cutting amount of the rotary cutter 20 with respect to the tile carpet T is maintained at an appropriate value, and the winding of the tile carpet T around the rotary cutter 20 is suppressed.

The cutter cooling mechanism 60 provided in the cooling devices 310 to 340 of the present embodiment blows cold air onto the rotary cutter 20 to cool the rotary cutter 20. Therefore, the rotary cutter 20 can be cooled more efficiently. Further, the cutting debris adhering to the rotary cutter 20 can be blown off and removed.

In the removal device 310-340 included in the tile carpet dismantling system 1000 of the present embodiment, the feed roller 41 is supported so as to be vertically movable via the roller holder 42 and the movable support column 43, and the vertical position of the feed roller 41 is set. Adjusted independently of the rotary cutter 20. Therefore, the feed roller 41 is arranged at an optimum position without being affected by the movement of the rotary cutter 20, and has sufficient force to feed the tile carpet T to the pressing mechanism 30 and to feed the tile carpet T from the pressing mechanism 30. Can be done with. In addition, there is no need to classify tile carpets or manually adjust the position of the feed roller according to the type of tile carpet, and various types of tile carpet T can be efficiently disassembled.

In the removal devices 310 to 340 included in the tile carpet dismantling system 1000 of the present embodiment, a suction mechanism 50 for holding the tile carpet T on the transport surface TS is provided under the transport surface TS. When the rotary cutter 20 removes the pile layer L1 and the adhesive layer L2 of the tile carpet T, the suction mechanism 50 sucks the lower surface of the tile carpet T and holds the tile carpet T on the transport surface TS, whereby the tile carpet T is held. It is possible to prevent the tile carpet T from floating and misaligning, and from wrapping the tile carpet T around the rotary cutter 20. Further, since the suction mechanism 50 that sucks the tile carpet T from the lower side can uniformly hold various types of tile carpet T regardless of the thickness of the tile carpet T, it saves the trouble of classifying the tile carpets and has many types. The tile carpet T can be disassembled efficiently.

Further, since the suction mechanism 50 includes a blower 524, a removable bottom plate 513, and a waste discharge conveyor 53, cutting chips mixed in the first suction chamber SC1 to the third suction chamber SC3 can be easily removed. can.

[Backing layer cutting unit 400]
In the backing layer cutting unit 400 that carpet tiles dismantling system 1000 of the present embodiment is provided, the feed mechanism 80, by sending a backing layer L3 with a small feeding speed V ₈₀ than cutting velocity V _C of the cutting blade unit CU, cutting The movement of the backing layer L3 pulled in by the blade unit CU is restricted, and tension is applied to the backing layer L3 in the transport direction. As a result, the inclination of the backing layer L3 due to the lead angles of the upper cutting blade 92 and the lower cutting blade 93 of the cutting blade unit CU is suppressed, and the backing layer L3 can be suitably cut by the cutting blade unit CU. You can. Further, since the backing layer L3 can be pulled in substantially along the transport direction, it is not necessary to allow a margin in the axial dimensions of the upper cutting blade 92 and the lower cutting blade 93, and the cutting blade unit CU can be miniaturized. ..

In the backing layer cutting unit 400 included in the tile carpet dismantling system 1000 of the present embodiment, the posture adjusting mechanism 70 adjusts the posture of the backing layer L3 on the upstream side of the feeding mechanism 80, and the feeding mechanism 80 is operated by the posture adjusting mechanism 70. The backing layer L3 is sent to the cutting blade unit CU while maintaining the adjusted posture. Therefore, the backing layer L3 can be sent to the cutting blade unit CU in an appropriate posture, and the backing layer L3 can be cut more preferably by the cutting blade unit CU.

The cutter cooling mechanism 60 provided in the removing devices 310 to 340 of the tile carpet dismantling system 1000 of the present embodiment cools the rotary cutter 20 and lowers the temperature in the cutting chamber CC to reduce the resin plate of the conveyor 100. It also has the effect of suppressing the temperature rise of the pressing member 31 made of RP or resin. By suppressing the temperature rise of the pressing member 31 and the resin plate RP, it is possible to suppress the occurrence of thermal expansion in the resin material forming these, and the tile carpet dismantling system 1000 can be operated more stably for a long period of time.

In the removal devices 310 to 340 of the tile carpet dismantling system 1000 of the present embodiment, the cutter cooling mechanism 60 blows cold air toward the rotary cutter 20 from the downstream side in the transport direction of the rotary cutter 20. Therefore, in the cutting chamber CC, the flow of air from the downstream side in the transport direction toward the upstream side in the transport direction to which the waste discharge duct DT is connected is promoted, and the cutting debris generated by cutting the tile carpet T is better. It can be led to the waste discharge duct DT. As a result, the mixing of cutting chips into the suction chambers SC1 to SC3 of the suction mechanism 50 is suppressed.

The suction mechanism 50 provided in the removal devices 310 to 340 of the tile carpet dismantling system 1000 of the present embodiment evacuates the suction chambers SC1 to SC3 to evacuate the air in the cutting chamber CC above the transport surface TS to the resin plate RP. It is sucked through the gap between them. Therefore, the effect of suppressing the temperature rise of the resin plate RP of the conveyor 100 and the resin pressing member 31 due to the air flow generated at the timing when the tile carpet T does not exist is obtained. This suppression of the temperature rise is more remarkable when the cutter cooling mechanism 60 is provided, but even when the cutter cooling mechanism 60 is not provided, the temperature rise is suppressed to some extent by the air flow.

The removal device 310-340 of the tile carpet dismantling system 1000 of the present embodiment has a pressing mechanism 30 capable of pressing the tile carpet T with an appropriate pressing force, and a transfer made of ultra-high molecular weight polyethylene in which adhesion of adhesive is suppressed. By providing the surface TP together, the adhesion of the adhesive material remaining on the back surface of the tile carpet T to the transport surface TP is better suppressed.

<Modification example>
The following modifications can also be used in the tile carpet dismantling system 1000, the devices constituting the tile carpet dismantling system 1000, and the tile carpet dismantling method using these.

[Modification example of tile carpet T]
Taking the case of dismantling the tile carpet T including the pile layer L1, the adhesive layer L2, and the backing layer L3 as an example, the tile carpet dismantling system 1000, the devices constituting the tile carpet dismantling system 1000, and the tile carpet dismantling method using these. Although the embodiment has been described, the object to be dismantled is not limited to this. The object to be dismantled may be any tile carpet having a laminated structure, and may be, for example, a tile carpet having an additional layer for soundproofing or an additional layer for antibacterial purpose.

[Modification example of tile carpet dismantling system 1000]
In the tile carpet dismantling system 1000 and the tile carpet dismantling method of the above embodiment, the positions of all the rotary cutters 20 of the removing devices 310 and 320 for removing the pile layer L1 and the removing devices 330 and 340 for removing the adhesive layer L2 are adjusted. Is performed based on the detection result of a single sensor unit 200 provided on the upstream side of the removal device 310. However, the present invention is not limited to this, and a single sensor unit 200 may be added at an arbitrary position on the downstream side of the removal device 310.

Specifically, for example, in addition to the upstream side of the removal device 310, the sensor unit 200 is provided immediately before the removal device 330 (that is, the downstream side of the removal device 320 and the upstream side of the removal device 330), and the removal devices 330 and 340 are provided. The position of the rotary cutter 20 may be controlled based on the detection result of the sensor unit 200. As a result, the vertical position of the rotary cutter 20 of the removal device 330 and 340 for removing the adhesive layer L2 is the state of the tile carpet T after the pile layer L1 is removed, that is, the state of the tile carpet T immediately before the removal of the adhesive layer. It can be adjusted to the optimum position according to (side information).

Similarly, immediately before the removal device 320 (that is, the downstream side of the removal device 310 and the upstream side of the removal device 320) and immediately before the removal device 340 (that is, the downstream side of the removal device 330 and the upstream side of the removal device 340). A sensor unit 200 for use in controlling the position of the rotary cutter 20 of the removing device may be provided. Thereby, the vertical position of the rotary cutter 20 of each removal device can be adjusted to the optimum position according to the state (side surface information) of the tile carpet T immediately before the processing.

In the tile carpet dismantling system 1000 and the tile carpet dismantling method of the above embodiment, the pile layer L1 is removed by two removal devices on the upstream side, and the adhesive layer L2 is removed by two removal devices on the downstream side. However, the present invention is not limited to this, and only two removing devices are provided along the transport direction, the pile layer L1 and the adhesive layer L2 of the first region TA1 are removed by the removing device on the upstream side, and the removal device on the downstream side removes the pile layer L1 and the adhesive layer L2. The pile layer and the adhesive layer L2 of the two-region TA2 may be removed.

Alternatively, as described in Patent Document 1, six removing devices are arranged along the transport direction, the head of the protrusion p of the pile layer L1 is cut by the two removing devices on the upstream side, and the following two removing devices are used. The pile layer L1 may be removed by the method, and the adhesive layer L2 may be removed by two removal devices on the downstream side.

As described above, it is arbitrary how many removal devices are used to remove the pile layer L1 and the adhesive layer L2 of the tile carpet T in a number of steps.

[Modification example of conveyor 100]
In the conveyor 100 of the above embodiment, the resin plate RP made of ultra-high molecular weight polyethylene is fixed on the upper surface of the transfer plate TP to form the transfer surface TP made of ultra-high molecular weight polyethylene. Not limited to. Specifically, for example, the transport plate TP may be omitted, and only the resin plate RP may be erected between the pair of conveyor chains 104.

In the conveyor 100 of the above embodiment, the resin plate RP is screwed to the transport plate TP, but the present invention is not limited to this. The method of fixing the resin plate RP to the transport plate TP is arbitrary, and for example, fixing using an adhesive may be performed.

The conveyor 100 of the above embodiment is a chain conveyor in which a transfer plate TP is hung on a pair of conveyor chains 104, but the present invention is not limited to this. The conveyor 100 is a variety of conveyors such as a belt conveyor that transports by a transport belt laid between a pair of rollers facing in the transport direction, a roller conveyor that transports by a large number of transport rollers arranged in the transport direction, and the like. It may be there.

When a belt conveyor is used as the conveyor 100, for example, by attaching a large number of resin plate RPs to the upper surface of the transport belt, a transport surface TP made of ultra-high molecular weight polyethylene can be formed as in the above embodiment. can. When a roller conveyor is used as the conveyor 100, for example, a transport surface TP made of ultra-high molecular weight polyethylene is formed by covering a cylindrical member of ultra high molecular weight polyethylene so as to surround a transport roller (an example of a mounting portion). be able to.

In addition, by coating the surface of the transport plate TP or the transport roller with ultra-high molecular weight polyethylene or attaching a tape of ultra-high molecular weight polyethylene without using the resin plate RP or the cylindrical member, the ultra-high molecular weight polyethylene can be used. The formed transport surface TS can also be provided.

When attaching the resin plate RP to the transport plate TP, the resin plate RP is fixedly fastened to the transport plate TP at the center, and the four corners of the resin plate TP are larger than the shaft diameter of the fasteners (screws, bolts, etc.). A through hole having a large diameter may be provided and fastened to the transport plate TP through the through hole. According to this mounting method, even when the resin plate RP expands, the peripheral edge of the resin plate RP can be moved by the margin of the through hole. Therefore, regardless of the difference in the coefficient of thermal expansion between the metal transport plate TP and the resin resin plate RP, the state in which the resin plate RP is attached to the transport plate TP can be maintained satisfactorily.

In the conveyor 100 of the above embodiment and the modified example, polyacetal (POM) can be used instead of the ultra-high molecular weight polyethylene. Specifically, for example, POM-NC / POM-BC of polypenco (registered trademark) acetal available from Quadrant Polypenco Japan Co., Ltd. can be used. Polyacetal also exhibits the same non-adhesiveness as ultra-high molecular weight polyethylene.

In the conveyor 100, the resin plate RP may be omitted, and the conveyor surface TS may be formed on the upper surface of the conveyor plate TP.

[Modification example of sensor unit 200]
The sensor body 202 of the sensor unit 200 of the above embodiment is an image sensor including a camera 202c and a processor 202p, but the present invention is not limited to this. The tile height H can be measured by using a laser sensor or the like as the sensor body 202 instead of the image sensor.

In the height information acquisition step S2 of the tile carpet disassembling method of the above embodiment, the sensor main body 202 has a pile layer height h1, an adhesive layer height h2, a backing layer height h3, and a tile height of the tile carpet T. All of H is detected, but it is not limited to this. Of these, the sensor body 202 may only detect the minimum required height information used in the subsequent removal device. Further, it is not essential to obtain the measured values at three places along one side of the tile carpet T and to obtain the height information such as the tile height H from these arithmetic mean values, and it is one along one side of the tile carpet T. The arithmetic mean value of the measured value at the place or the measured value at two places or four or more places along one side of the tile carpet T may be used as the height information such as the tile height H.

[Modification example of removal device]
In the removing devices 310 to 340 of the above embodiment, the movable frame 10 may have an arbitrary configuration that supports the rotary cutter 20 so as to be vertically movable.

Specifically, for example, the moving housing 13 may be moved up and down by a rack and pinion mechanism instead of the moving mechanism 14. In this case, for example, a rack is provided on the support column 11, and a servomotor and a pinion attached to the output shaft thereof are provided on the moving housing 13. Alternatively, instead of the support column 11, a telescopic support column whose length is adjusted by hydraulic pressure or the like may be used, and the top plate 132 of the moving housing 13 may be supported by the upper end of the telescopic support column. In addition, the rotary cutter 20 can be supported so as to be vertically movable by supporting the top plate 132 of the movable housing 13 with a pantograph type arm like a scissor lift.

As a further modification of the movable frame 10, the servomotor installed on the top plate 132 and the moving housing 13 are connected by a crank mechanism, and the moving housing 13 is moved via the crank mechanism by the rotation of the servomotor. A drive method can be used. In this case, for example, the servomotor is installed so that the output shaft extends in the horizontal direction, and the output shaft of the servomotor and the moving housing 13 are connected by a slider crank mechanism. As a further modification of the movable frame 10, a vertical movement method in which the moving housing 13 is moved by using a linear motor (linear actuator) can be used. In this case, for example, the support column 11 may be configured as a linear guide, and the moving housing 13 may be configured as a movable portion.

In the removing device 310-340 of the above embodiment, the rotary cutter 20 is formed by nine rotary blades 21 and eight spacers 22, but is not limited thereto. The number of rotary blades 21 and spacers 22 constituting the rotary cutter 20 is arbitrary.

In the removing devices 310 to 340 of the above embodiment, the pressing member 31 of the pressing mechanism 30 is supported by the supporting mechanism 32 so as to be vertically movable, and moves independently of the moving housing 13 and the rotary cutter 20 to be a coil spring. The position is adjusted by 323, but the position is not limited to this.

Specifically, for example, the support mechanism 32 may be omitted and the pressing member 31 may be fixed to the moving housing 13. In this aspect, the amount of protrusion of the rotary blade 21 protruding downward from the lower surface 31u of the pressing member 31 is constant. The position of the pressing member 31 is adjusted by moving the pressing member 31 together with the rotary cutter 20 by the same distance as the rotary cutter 20 when the vertical position of the rotary cutter 20 is adjusted.

Alternatively, instead of the support mechanism 32, the pressing member 31 may be supported by a supporting mechanism (holding member position adjusting mechanism) capable of adjusting the vertical position of the pressing member 31 based on the control of the control device CONT. Specifically, for example, a rack and pinion mechanism in which a rack is provided on the support column 321 and a servomotor and a pinion are provided on the pressing member 31, or a hydraulic support mechanism in which the support column 321 can be expanded and contracted by flood control can be used. In the control device CONT, for example, based on the height information (side information) of the tile carpet T acquired by the sensor unit 200, the lower surface 31u of the pressing member 31 is located above the transport surface TS by the tile height H. The vertical position of the pressing member 31 is adjusted.

In the removing devices 310 to 340 of the above embodiment, the cold air generated by the four vortex tubes 61 is blown to the nine rotary blades 21 via the nine nozzles 623 of the manifold 62, but the present invention is not limited to this. .. The number of vortex tubes 61 and the number of nozzles 623 are arbitrary. Specifically, for example, when the number of rotary blades 21 is 9 or less, the number of nozzles 623 may be 9 or less, which may be less than the number of rotary blades 21. Further, the manifold 62 may be omitted, and the structure may be such that the cold air from the vortex tube 61 is directly blown onto the rotary blade 21. Further, the cutter cooling mechanism 60 may be arranged on the front side in the rotation direction of the cutting position of the rotary cutter 20.

In the removing devices 310 to 340 of the above embodiment, the nozzle 623 is arranged so as to blow cold air toward the rotary blade 21 of the rotary cutter 20 along the radial direction of the rotary blade 21. Not limited. The arrangement of the nozzle 623 is arbitrary, and for example, the nozzle 623 may be arranged so as to blow cold air along the tangential direction or the axial direction of the rotary blade 21.

In the removing devices 310 to 340 of the above embodiment, the cutter cooling mechanism 60 is configured to blow cold air toward the outer peripheral surface of the rotary blade 21 of the rotary cutter 20, but the present invention is not limited to this. The cutter cooling mechanism 60 may be configured to blow cold air onto the side surface of the rotary blade 21 or the spacer 22, for example. Further, the cutter cooling mechanism 60 may be configured so as not to blow cold air onto the rotary cutter 20. For example, the cutter cooling mechanism 60 may be configured to cool the rotary cutter 20 by supplying cold air into the cutting chamber CC to lower the temperature in the cutting chamber CC.

In the removing devices 310 to 340 of the above embodiment, the cutter cooling mechanism 60 generates cold air by the vortex tube 61, but the present invention is not limited to this. For example, a unit cooler (cold air generator) for cooling the gas may be arranged outside the cutting chamber CC according to the same principle as the freezer, and the unit cooler may generate cold air. Even when the vortex tube 61 is used, the vortex tube 61 can be arranged outside the cutting chamber CC. The cold air is not limited to air, and any usable gas can be used.

In the removing devices 310 to 340 of the above embodiment, the feed rollers 41 of the feed mechanisms 40 and 40'are supported so as to be vertically movable via the roller support 42 and the movable support column 43, and the position is adjusted by the coil spring 44. Will be done. However, the present invention is not limited to this, and the movable support column 43 may be omitted and the roller support 42 may be fixed to the moving housing 13 or the pressing member 31 that supports the rotary cutter 20.

Further, the pressing member 31 and the roller support 42 may be fixed to the moving housing 13 with the rotary cutter 20, the pressing member 31, and the feed roller 41 arranged in a desired positional relationship. In this aspect, by moving the moving housing 13 up and down, the rotary cutter 20, the pressing member 31, and the feed roller 41 move integrally, and their vertical positions are adjusted.

The feed roller 42 may be supported by a support mechanism that can adjust the vertical position of the feed roller 41 based on the control of the control device CONT. Specifically, for example, a rack and pinion mechanism in which a fixed strut provided with a rack is provided instead of the movable strut 43 and a servomotor and a pinion are provided on the roller support 42, or a strut that can be expanded and contracted by flood control instead of the movable strut 43. A hydraulic support mechanism comprising the above can be used. In the control device CONT, for example, based on the height information (side information) of the tile carpet T acquired by the sensor unit 200, the lower end of the feed roller 41 is located above the transport surface TS by the tile height H. The vertical position of the pressing member 31 is adjusted.

In the removal device 310-340 of the above embodiment, the inside of the chamber body 51 of the suction mechanism 50 is divided into three chambers by the partition wall 512, but the present invention is not limited to this, and a single chamber or any arbitrary chamber is used. Multiple chambers may be defined. Further, instead of the scrap discharging conveyor 53 of the suction mechanism 50, for example, a plate-shaped scrap receiving member may be arranged, and the cutting dust falling from the bottom plate 513 may be received and collected by the scrap receiving member.

In the suction mechanism 50, even when the conveyor 100 is a belt conveyor and the transport surface TS is defined by a belt, the gaps between the fibers are provided by providing minute holes in the belt or when the belt is fibrous. By using, the tile carpet can be sucked through the transport surface. Further, even if the belt does not allow gas to pass through, the tile carpet can be sucked through, for example, the outer portion in the orthogonal direction of the belt.

The suction mechanism 50 does not have to have the chamber body 51. In this case, for example, the intake port 521 can be arranged directly under the mounting surface TS to suck the tile carpet T.

[Tile carpet dismantling device]
In the above embodiment, the sensor unit 200 and any of the removal devices 310 to 340 can be combined to form a tile carpet dismantling device including a sensor unit (sensor unit) and a removal unit (removal device).

[Modified example of arrangement of removal devices 320 to 340]
In the tile carpet dismantling system 1000 of the above embodiment, the removal devices 320 and 340 having the same structure as the removal devices 310 and 330 are installed at positions shifted in the orthogonal direction with respect to the removal devices 310 and 330. The positions of the rotary cutters 20 of the removal devices 310 and 330 in the orthogonal direction of the rotary blades 21 and the spacers 22 and the positions of the rotary cutters 20 of the removal devices 320 and 340 in the orthogonal directions of the rotary cutters 20 and the spacers 22 were different from each other. However, it is not limited to this.

Specifically, for example, the rotation of the removal devices 320 and 340 is provided so that the rotary blade 21 of the removal devices 320 and 340 is shifted in the direction orthogonal to the rotary blade 21 of the removal devices 310 and 330. The shapes of the cutter 20, the pressing member 31, and the like may be slightly different from the shapes of the rotary cutter 20 and the pressing member 31 included in the removing devices 310 and 330.

[Modification example of backing layer cutting unit 400]
In the backing layer cutting unit 400 of the tile carpet dismantling system 1000 of the above embodiment, a plurality of transfer rollers may be used instead of the upstream slope SL1 and the downstream slope SL2.

In the backing layer cutting unit 400 of the tile carpet dismantling system 1000 of the above embodiment, the posture adjusting mechanism 70 may have an arbitrary configuration in which the posture of the backing layer L3 can be adjusted. Specifically, for example, an air cylinder may be arranged on the side plate 71 so that the rod faces inward in the orthogonal direction, and an adjusting plate may be attached to the tip of the rod. Further, the sensor 75 can be provided at an arbitrary position so that the backing layer L3 can be detected on the upstream side of the left and right adjustment plates 731 and 741. When a plurality of transfer rollers are used instead of the upstream slope SL1, a sensor 75 may be provided below the transfer rollers so as to detect the backing layer L3 through the gaps between the transfer rollers.

Further, when a plurality of transfer rollers are used instead of the upstream slope SL1, a pair of adjusting plates above the transfer rollers may be moved by a pair of air cylinders arranged below the transfer rollers. In this case, for example, an arm extending in the vertical direction passing between the plurality of transport rollers is fixed to each rod of a pair of air cylinders arranged below the transport roller, and extends in the transport direction above the arm. Fix the adjustment plate.

In the tile carpet dismantling system 1000 of the above embodiment, the posture adjusting mechanism 70 of the backing layer cutting unit 400 may be omitted. In this case, the posture of the backing layer L3 may be adjusted by bringing the backing layer L3 into contact with the pair of stopping air cylinders 82 of the control mechanism 80 and aligning one side of the backing layer L3 in the orthogonal direction. .. Since the pair of stopping air cylinders 82 abut on the backing layer L3 at two points arranged in the orthogonal direction, they can function as a posture adjusting unit for performing such posture adjustment. A single air cylinder may be used instead of the pair of stopping air cylinders 82. In this case, a longitudinal member extending in the direction orthogonal to the rod of the air cylinder is fixed orthogonally to the rod, and a pin is projected upward from the vicinity of both ends of the longitudinal member. As a result, the pair of pins can be moved up and down by operating a single air cylinder, and the backing layer L3 can be stopped and the posture can be adjusted by the pair of pins. Further, instead of the pair of stopping air cylinders 82, an arbitrary mechanism that performs the same function, for example, an upright position in which a plate-shaped member is brought into contact with the front side of the backing layer L3 to adjust the posture, and a backing layer. The backing layer L3 can be stopped and the posture can be adjusted by a mechanism that moves the L3 to and from a lodging position that allows movement in the transport direction.

In the tile carpet dismantling system 1000 of the above embodiment, the feed mechanism 80 of the backing layer cutting unit 400 sends the backing layer L3 to the cutting mechanism 90 by a pair of feed conveyors 81 and a feed roller 83, but this is limited to this. I can't.

Specifically, for example, instead of the pair of feed conveyors 81, two or three or more drive rollers whose rotation axes are oriented in the orthogonal direction may be arranged in the transport direction. In this configuration, the feed roller 83 faces the drive roller located on the most downstream side in the transport direction, and the backing layer L3 is sandwiched between them and fed to the cutting mechanism 90. Further, in this configuration, the pair of stopping air cylinders 82 are arranged between two drive rollers arranged in the transport direction.

In addition, the feed mechanism 80 may have an arbitrary configuration in which the backing layer L3 can be fed to the cutting mechanism 90 while maintaining its posture. Specifically, for example, a configuration in which the backing layer L3 is fed by a pair of feed rollers facing in the vertical direction, a configuration in which the backing layer L3 is fed by a pair of feed conveyors facing in the vertical direction, and the like can be used. Alternatively, with the backing layer L3 sandwiched between a pair of feed rollers facing each other in the vertical direction, the pair of feed rollers and the backing layer L3 are integrally slid downstream in the transport direction to feed the backing layer L3 to the cutting mechanism 90. It may be a configuration. In this case, when the backing layer L3 is pulled into the cutting blade unit CU, the pair of feed rollers feed out the backing layer L3 while rotating in a state where the brake is effective, and the backing layer L3 is moved by the cutting blade unit CU. Restrict.

In the tile carpet dismantling system 1000 of the above embodiment, the cutting mechanism 90 of the backing layer cutting unit 400 cuts the backing layer L3 by the cutting blade unit CU having the upper cutting blade 92 and the lower cutting blade 93. , Not limited to this. The cutting mechanism 90 may be, for example, a triaxial shredding shredder provided with a spiral cutter that further finely cuts cutting debris on the downstream side of the upper cutting blade 92 and the lower cutting blade 93. Alternatively, the cutting mechanism 90 may be a uniaxial shredder having only the upper cutting blade 92.

The removing devices 310 to 340 of the above-described embodiment and the modified example may have only one of the pressing mechanism 30 and the suction mechanism 50.

The conveyor 100 provided in the tile carpet dismantling system 1000 of the above embodiment and the modified example can be used in any dismantling system for dismantling the tile carpet. Such a system may have a fixed vertical position of the rotary cutter or holding member. Even in such a system, it is possible to suppress the adhesion of the adhesive or the like on the back surface of the tile carpet T to the transport surface TS, transport the carpet tiles satisfactorily, and efficiently disassemble a large amount of tile carpets.

The vertical position of the rotary cutter 20 may be fixed in the removal devices 310 to 340 of the above-described embodiment and the modified example. That is, even if the vertical position of the rotary cutter 20 cannot be adjusted and the vertical position of the pressing member 31 can be adjusted, the tile carpet T to be disassembled can be appropriately pressed in sequence to obtain a large number of tile carpets T. It can be disassembled efficiently. Further, while the vertical position of the rotary cutter 20 cannot be adjusted, the tile carpet T to be dismantled can be appropriately pressed in sequence by simply holding the tile carpet T being cut by the suction mechanism 50, and a large number of types of tiles can be used. The carpet T can be disassembled efficiently.

The vertical position of the pressing member 31 may be fixed in the removing devices 310 to 340 of the above-described embodiment and the modified example. That is, even if the vertical position of the holding member 31 cannot be adjusted and the vertical position of the rotary cutter 20 can be adjusted, the rotary cutter 20 can be appropriately arranged in sequence with respect to the tile carpet T to be dismantled, and there are many types. Moreover, a large amount of tile carpet T can be efficiently disassembled.

The cutter cooling mechanism 60 of the above embodiment and the modified example can also be used together with the rotary cutter 20 whose vertical position is fixed. Even in this case, the temperature rise of the rotary cutter 20 is suppressed, and the winding of the tile carpet T is suppressed.

The backing layer cutting unit 400 of the above-described embodiment and the modified example is provided by any method, not limited to the tile carpet T from which the pile layer L1 and the adhesive layer L2 have been removed by the removing devices 310-340 of the above-described embodiment and the modified example. It can be used for the backing layer L3 to be formed. That is, the backing layer cutting unit 400 can also be used in an embodiment independent of the tile carpet dismantling system 1000.

As long as the features of the present invention are maintained, the present invention is not limited to the above-described embodiment, and other modes considered within the scope of the technical idea of the present invention are also included within the scope of the present invention. ..

10 Movable frame 13 Moving housing 14 Moving mechanism 20 Rotating cutter 30 Pressing mechanism 31 Pressing member 40, 40'Feeding mechanism 41 Feeding roller 50 Suction mechanism 60 Cutter cooling mechanism 70 Attitude adjustment mechanism 80 Feeding mechanism 90 Cutting mechanism 100 Conveyor 200 Sensor unit 310, 320, 330, 340 Removal device 400 Backing layer cutting unit 1000 Tile carpet dismantling system

Claims (10)

A tile carpet dismantling device that dismantles tile carpets
A sensor unit that acquires side information including the height of the tile carpet, and
It is provided with a removing portion for removing the surface of the tile carpet.
The removal part
A rotary cutter that cuts the surface of the tile carpet,
A housing that defines a chamber that traps cutting chips generated by cutting, and a housing that supports the rotary cutter by positioning it in the chamber.
A cooling nozzle that is supported by the housing and blows cold air onto the rotary cutter,
A tile carpet dismantling device including a position adjusting mechanism for adjusting the vertical position of the rotary cutter by moving the housing based on the side surface information. The tile carpet dismantling device according to claim 1, wherein the removing portion further includes a suction portion that is supported by the housing and sucks the cutting chips from the chamber. A tile carpet dismantling device that dismantles tile carpets
A sensor unit that acquires side information including the height of the tile carpet, and
It is provided with a removing portion for removing the surface of the tile carpet.
The removal part
A rotary cutter that cuts the surface of the tile carpet,
A housing that defines a chamber that traps cutting chips generated by cutting, and a housing that supports the rotary cutter by positioning it in the chamber.
A suction unit that is supported by the housing and sucks the cutting chips from the chamber,
A tile carpet dismantling device including a position adjusting mechanism for adjusting the vertical position of the rotary cutter by moving the housing based on the side surface information. The tile carpet comprises a backing layer, an adhesive layer on the backing layer, and a pile layer on the adhesive layer.
The side surface information includes the height of the backing layer, the height of the adhesive layer, and the height of the pile layer.
Any one of claims 1 to 3, wherein the position adjusting mechanism adjusts the vertical position of the rotary cutter based on at least one of the height of the backing layer, the height of the adhesive layer, and the height of the pile layer. The tile carpet dismantling device according to paragraph 1. Wherein the position adjusting mechanism,
A moving mechanism for moving the front Kikatamitai vertically,
The tile carpet dismantling device according to any one of claims 1 to 4, further comprising a control unit that controls the moving mechanism based on the side surface information. Carpet tiles disassembling apparatus according the placed and the carpet tiles down to any one of claims 1 to 5 to obtain further Bei a pressing member for pressing downward the rotary cutter. A tile carpet dismantling system that dismantles a tile carpet that includes a backing layer, an adhesive layer above the backing layer, and a pile layer above the adhesive layer.
A conveyor that conveys the tile carpet along the conveying direction,
A sensor unit that acquires side information including the height of the tile carpet, and
A pile layer removing device that removes at least a part of the pile layer,
It is provided with an adhesive layer removing device arranged on the downstream side in the transport direction of the pile layer removing device and removing at least a part of the adhesive layer.
The pile layer removing device
A first rotary cutter that cuts at least a part of the pile layer,
A first housing that defines a first chamber that traps cutting chips generated by cutting, and a first housing that supports the first rotary cutter by positioning it in the first chamber.
A first cooling nozzle that is supported by the first housing and blows cold air onto the first rotary cutter,
A first position adjusting mechanism for adjusting the vertical position of the first rotary cutter by moving the first housing based on the side surface information is provided.
The adhesive layer removing device
A second rotary cutter that cuts at least a part of the adhesive layer,
A second housing that defines a second chamber that traps cutting chips generated by cutting, and a second housing that supports the second rotary cutter by positioning it in the second chamber.
A second cooling nozzle that is supported by the second housing and blows cold air onto the second rotary cutter,
A tile carpet dismantling system including a second position adjusting mechanism that adjusts the vertical position of the second rotary cutter by moving the second housing based on the side surface information. On the first sensor unit in which the sensor unit acquires the side surface information on the upstream side in the transport direction of the pile layer removing device, and on the downstream side in the transport direction of the pile layer removing device and on the upstream side in the transport direction of the adhesive layer removing device. Including the second sensor unit for acquiring the side surface information.
The first position adjusting mechanism adjusts the vertical position of the first rotary cutter based on the side surface information acquired by the first sensor unit, and the second position adjusting mechanism adjusts the vertical position based on the side surface information acquired by the second sensor unit. The tile carpet dismantling system according to claim 7 , wherein the vertical position of the two-turn cutter is adjusted. Placing tile carpet on the conveyor and
A method for dismantling a tile carpet, which comprises cutting the surface of the tile carpet previously placed by the tile carpet dismantling device according to any one of claims 1 to 6. A tile carpet dismantling method for dismantling a tile carpet including a backing layer, an adhesive layer on the backing layer, and a pile layer on the adhesive layer.
A method comprising cutting at least a part of the pile layer and cutting at least a part of the adhesive layer using the tile carpet dismantling system according to claim 7 or 8.

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