JPH0775840B2 - Sheet material cutting table - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention spreads sheet material, such as cloth, during cutting by a cutter to form molds or other components used in clothing or upholstery and the like. The present invention relates to a table used for supporting in a state. More specifically, a reciprocating knife in which the spread material is held or compressed at least partially in place by a vacuum applied to the bottom surface of the spread material and the spread material penetrates the top of the table. Or a table that is particularly well suited for use as part of a cutting device that is cut by other mechanical cutting tools.

In the manufacture of articles from fabric or similar sheet material, the conventional method of cutting is to first spread the material as a single layer or a stack of multiple layers onto a horizontal support surface of an upward cutting table, then The material is cut along the desired two-dimensional cutting line by either a manual cutter or an automatic control cutter that is movable in two coordinate directions on a table in response to a command from a cooperating controller. The material to be cut is often relatively wide, and the marker (ma) to be cut from the material
rker; mark, or pattern;
The cutting table is
Correspondingly large dimensions are required. The table must also have a rigid and stable structure so that it does not rock, distort or vibrate during the cutting process. The table must also be robust to have a reasonable service life, and is preferably modularized, with two or more tables linked together as a module to accommodate a large number of possible It should provide the entire table for any one of the lengths.

In recent years, cutting methods have also provided a vacuum system that cooperates with a cutting table to apply a vacuum to the lower surface of the material to be cut to hold the material on a support surface or compress the material during the cutting process. Often used. Also, positive air pressure is sometimes used in place of the vacuum to help place the material on or out of the support surface.
Furthermore, many of the cutting methods presently used are reciprocating cutting knives, rotary cutting knives or similar cutting tools that head through the material to be cut completely during the cutting process and form the material support surface. To some extent,
Of various types of bristle beds have been developed to provide tables with the ability to work with such penetrating cutting tools. In the past, cutting tables providing various one or all of the above features have been relatively expensive to manufacture. The table is also generally very heavy to ship and difficult to move from one place to another in the cutting room, and sometimes the size of the table does not easily fit into a standard size trolley or shipping container or It doesn't fit at all.

It is a general object of the present invention, therefore, to provide a sheet material cutting table that is extremely rigid and resists bending and vibration during use despite its relatively inexpensive and lightweight construction.

Another object of the present invention is to provide such a table which includes an arrangement for applying a vacuum or positive air pressure to the underside of the sheet material spread over the supporting surface of the table, and yet another object. A vacuum system is provided in which a vacuum is applied in a table-partitioned manner to provide a simple inexpensive means with few moving mechanical parts for controlling the sectioned vacuum.

Another object of the present invention is to provide a table of the above character that includes a bristle bed for use with penetrating cutting tools, and a table that can be easily disassembled into portions to reduce its size for shipping purposes. Is to provide.

Other objects and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments, taken in conjunction with the accompanying drawings.

DESCRIPTION OF THE INVENTION The present invention resides in a table for cutting sheet material consisting of a panel with an upwardly facing support surface, the panel being made in a sandwich construction and bonded to the upper sheet, the lower sheet, and these. Done and Honeycomb (honeycom
b) having an intermediate core containing a body of material. The body of honeycomb material is along one or more air ducts extending in the longitudinal direction of the panel between opposite edges of the panel, thereby making the panel stiff and uniform in thickness, and vacuum or pressure air. Provide one or more internal passages for the flow of

The invention also resides in a panel including a top sheet and a number of openings through the top wall of each duct. The openings are associated with a number of valves and are spaced in each duct along the length of the table. A valve is provided, one for each opening, actuated to block or allow the flow of air through the cooperating openings and supports the panel by means of rigid structures and bristle elements located on the panel support surface. Allowing a vacuum applied to the material support surface formed above the surface. The rigid structure is
Includes a barrier that divides the space occupied by it into multiple compartments. Each compartment communicates with one of the cooperating areas of the bristle bed formed by the bristle element and the opening.

The invention also resides in edge means attached to the longitudinal side edges of the panel for supporting the first carriage for movement in the longitudinal direction of the table, part of said edge means. Can be easily removed to reduce the width of the table for shipping purposes.

The invention further resides in the unique means of actuating the aforementioned valve in response to the position of the first carriage along the length of the table. The means includes a number of spaced apart elongated fixed contacts located along one side edge of the table,
It then cooperates with sliding contacts carried by the first carriage and continuously slidingly contacting the fixed contacts as the first carriage is moved from one table to another.

The invention also includes a first carriage supported on the first carriage.
Second moving across the table in the longitudinal direction of its carriage
On the carriage. There are many ducts in the panel,
Each duct has multiple openings and valves associated therewith. The means for actuating the valve includes a number of spaced apart elongated stationary contacts arranged along the length of the first carriage, and a stationary carriage carried by the second carriage and on the first carriage. It has a sliding contact for sliding contact with the contact.

(Embodiment) A cloth cutting device using a cutting table embodying the present invention is shown in FIG. 1, which basically comprises a cutting table 10, a numerical controller 12, and a vacuum or positive pressure air source. It consists of 14. The table 10 provides a horizontal upward facing rectangular surface 16 to support the material to be cut in the unrolled condition. In the illustrated example, a single layer of material 18 is shown spread out over the work support surface 16, but the table also serves to cut a laminate of material comprised of multiple layers. Is also used. An X-carriage 20 spans the workpiece support surface 16 and each of the ends of the X-carriage 20 extends in the longitudinal direction of the table such that it moves in the longitudinal direction of the table or in the direction of the X coordinate shown. It is supported by rails 22 and racks 24. The X-carriage 20 has a set of rollers (not shown) that engage with rails 22 at each end and a pinion (not shown) that meshes in drive relationship with a rack 24, with two pinions in service module 26 on one end of carriage 20. It is rotated integrally by the contained drive motor and is controlled by a signal supplied from the controller 12.

The tool carriage 28 may be in the transverse direction or the Y shown.
X to move with respect to the X-carriage 20 in the coordinate direction
-Supported on the carriage 20. This tool carriage 28
Carries a cutting mechanism 30 having a reciprocating knife as a cutting element. The tool carriage 28 is movable in the Y coordinate direction with respect to the X-carriage 20 by a belt 32 driven by another motor in the service module 18 controlled by the controller 12. Therefore, due to the controlled movement of the X-carriage 20 in the X-coordinate direction and the controlled movement of the tool carriage 28 in the Y-coordinate direction, the cutting mechanism 30 causes the sheet material to move.
It can be moved along any desired line to cut a mold piece or similar component from 18. One cut line is shown at 34 and one cut mold piece is shown at 36.

The support surface 16 is described in detail below because the knife or cutting element of the cutting mechanism penetrates the material 18 to be cut in the cutting process and penetrates into the material providing the workpiece support surface 16 to some extent. Prepared by the bristle bed so that.

The controller 12 includes carriages 20 and 28 and a cutting mechanism 30.
And the cutting mechanism 30 automatically cuts the mold pieces or other components from the material 18 in accordance with the markings or patterns displayed in the storage device. The storage device forms part of or cooperates with the controller 12. Controller 12 is a flat cable
Connected to the carriage and cutting mechanism via 38, the flat cable 38 is connected to the table 1 by a number of moving pulleys.
It is hung in the form of a festoon along one side edge. One of the moving pulleys is shown in FIG.
It is designated by 40 and is mounted on a longitudinally extending rail 42. That is, the moving sheave engages the cable at points spaced along its length and the cable 38 loops between the moving sheaves that move along rails 42 as the X-carriage 20 moves longitudinally of the table. To keep the cables 38 in order in all positions of the carriage. As shown in FIG. 1, the rails 42 of the moving pulley are provided on each side of the table, but only one rail is used.

The air supply source 14 is an air blower or pump having an intake port or vacuum port 46 and a discharge port or positive pressure port 48.
Including 44. A valve mechanism 50 cooperates with the pump 44 to connect the valve mechanism 50 to a port 52 that opens to the atmosphere and another port that connects to an air conduit 54 that communicates with the table 10. The valve 50 is set to provide vacuum pressure to the conduit 54 by connecting the conduit 54 to the pump inlet port 46 and the pump discharge port 48 to the atmospheric port 52 by manually operating the handle 56. obtain. Instead, the valve handle 56 connects the conduit 54 to the outlet 48 of the pump 44 and connects the pump inlet port 46 to the valve atmospheric port 55.
Can be set to provide a positive air pressure to conduit 54 by connecting to. As will be described in more detail below, the vacuum or positive air pressure appearing in conduit 54 is transmitted to all or part of the work material support surface 16 in cutting the material, in spreading the material on surface 16, or Works in removing material from face 16.

2 and 3 for a more detailed description of the cutting table 10. The main component of the table is a rigid sandwich horizontal panel 58. The panel is rectangular in shape with the support surface 60 facing horizontally. The table consists of an upper seat 62, a lower seat 64,
And a core disposed between the two sheets 62 and 64 adhered with a suitable adhesive to provide a sandwich structure. The core is a duct 66 of rectangular cross section, which is arranged in the center of the panel and extends in the longitudinal direction of the panel, and two honeycomb bodies 68 which are arranged on both sides of the duct 66 and extend laterally from the duct to the side edges of adjacent panels, It consists of 68. Due to the rectangular cross section of the duct 66, the duct 66 has a flat top surface that is adhered to the top sheet 62, and a bottom sheet 64.
Has a flat bottom surface which is adhered to.

Edge finishing means are glued or otherwise secured to each side edge of the panel to further finish the table 10. Such edge finishing means substantially coincide with the sides of the table and each side includes a first side member 70 and a second side member 72 extending longitudinally of the table. First side member 70
Includes a vertically extending wall 74 that projects upwardly beyond the top sheet 62 of the panel. The first side member 70 also includes a bottom flange 76 and a top flange 78. Adjacent side edges of panel 58 are received between bottom flange 76 and top flange 78. Bottom flange 76 is supportively engaged to and adhered to the bottom surface of bottom panel sheet 64. The upper flange 78 engages and adheres to the upper surface of the upper sheet 62.

Each of the two second side members 72, 72 is attached to the cooperating first side member 70 by a number of screws 80, 80. A number of screws 80, 80 semi-permanently or removably secure the second side member 72 to the first side member 70 to allow the second side member 72 to
Each of the can be removed from the table to reduce its width for shipping purposes and then easily installed when the table is assembled into the position where it will be used,
forgive. Each of the second side members 72 extends laterally outwardly of the panel 58 beyond the first side member 70 and includes an upwardly extending flange 82 which supports the guide 22 and the rack 24.
Each second side member 72 also includes a rail 42 for a moving sheave 40 that supports a cable 38. Each of the rails 42
It is formed by two downwardly extending flanges on the side member 72. The flanges are provided at their lower ends with two upwardly facing raceways spaced apart by a slot along which the two wheels of each mobile pulley 40 transition. Each of the moving pulleys has a stem 84. Stem
84 extends downward through the slot to a suspended position that holds the cable 38.

The materials of making the panel 58 and the edge finishing means vary widely, but preferably they are chosen to make the table relatively lightweight. For this reason the sheets 62 and 64 are preferably made of aluminum and the ducts 66 and each side member 70 and 72 are preferably aluminum extrudates.

A pair of legs 86 are attached to the panel 58 and the panel 58 is attached to the third
Support at a convenient height as shown. These legs are also preferably joined to the panel by screw fasteners 88. The screw fasteners 88 allow the legs to be easily removed from the table, reducing the size of the table for shipping or storage.

As shown in FIG. 2, the duct 66 of the panel 58 is connected to the air conduit 54. Also, a number of openings 90, which are always spaced from each other in the longitudinal direction of the table, are formed through the top sheet 62 of the panel and the top wall of the duct 66, between the top or support surface 60 of the panel and the interior of the duct. Communicate.
A number of valves 92 are carried by the panel 58, each cooperating with a separate one of the openings 90. As best shown in FIG. 3, each valve 92 is attached to the stem of a pneumatic actuator or cylinder 94, and the cooperating opening 90 is closed from the solid line position shown where the cooperating opening 90 is opened. It can be moved by the actuator 94 to the dashed position shown. As also shown in FIG. 7, the pressurized air that actuates each air actuator 94 is
It is supplied by tubing 96 via an electrically operated control valve 98. There is one control valve 98 for each pneumatic actuator 94. Each control valve 98 includes an internal solenoid coil, which for convenience is shown externally at 100 in FIG. When the coil 100 of the control valve 98 is energized, the valve 98 vents the bottom of the cooperating actuator 94 to the atmosphere via port 102, and the spring 104 inside the actuator 94 moves the piston 106 of the actuator 94 below it. Press into the restricted position, keeping the cooperating valve 92 in its open position. Control valve 98
When coil 100 is de-energized, valve 98 connects pressurized air line 96 to the bottom of actuator 94 and pushes piston 106 upward to move valve 92 to its closed position.

Supported on the support surface 60 of the panel 58, the workpiece material support surface 16
There is a lattice structure 108 that supports the bristle beds 110 that form the. The purpose of the lattice structure 108 is to hold the bristle beds 110 vertically spaced from the support surface 60 of the panel and to open the openings 90, 90.
And to allow air flow between all areas of the bristle bed. To this end, the lattice structure 108 has an upper horizontal lattice, such as the wall 112, which supports the bristle beds 110 and has multiple holes. A number of legs 114, 114 extend downwardly from the wall 112 and rest on the support surface 60 of the panel. Preferably, the lattice structure 108 is made of a number of square bristles placed next to each other, and the bristle beds 110 are made of a number of square bristles units that fit into the lattice, to the material support surface 16 or to the material. It has a perforated base which allows air to flow vertically from the support surface 16.

As an example, the lattice of the lattice structure 108 and the bristle elements of the bristle bed 110 are approximately equivalent to those shown in US Pat. No. 4,205,835, to which reference is made in detail. As shown in the U.S. patent, each grid has a barrier extending along one side edge of the grid, the grids being arranged with respect to each other such that the barriers of the various grids extend across the table. The space below the bed 110 is divided into a plurality of transversely extending sections. The compartments are substantially isolated from each other with respect to the longitudinal air flow of the table in the space occupied by the lattice structure. Such a barrier is the second
Shown partially at 116 in the figure, in combination with adjacent barriers, extends transversely across the table from one upwardly extending sidewall 74 to the opposite sidewall 74. Each of the isolated compartments defined by the barrier 116 cooperates with a separate one of the openings 90,90. Therefore, when a vacuum is applied inside the duct 66, the opening and closing of the valves 92, 92 cooperating with the openings 90, 90 determines which bristle bed transverse section is evacuated and which is not evacuated. . If necessary, a barrier plate may also be placed on the bristles bed in alignment with the barriers 116, 116, and in the space occupied by the bristles the longitudinal direction of the table from one lateral compartment to another. You can also forbid the flow of air.

During the cutting process, the valve 50 of the air supply system 14 is
54 is preferably set to provide a vacuum, and valves 92, 92 are preferably arranged so that the vacuum appearing in duct 54 causes a transverse section of only one bristle bed 110 on which cutter 30 is positioned. It is controlled so that if the dampener or cutter 30 is located near the boundary between two adjacent sections of the bristle bed, it will only transfer to these two sections.

A variety of different means can be used to control the valves 92, 92 depending on the position of the carriage 20. In the preferred and illustrated case, as shown in FIG. 7,
This means comprises a set of elongated fixed contacts 118, 118 arranged along a longitudinally extending line of the table in spaced-apart and electrically-isolated relationship. Each of the fixed contacts 118 cooperates with a separate one of the valves 92 in the manner illustrated in FIG. That is, the coil 100 of the control valve 98 of each valve 92 has one end connected to the positive voltage source and the other end connected to the cooperating fixed contact 118. In cooperation with all of the fixed contacts 118, a ground sliding contact 120 is movable along the row of fixed contacts 118, 118. Therefore, the sliding contact 120 has a specific fixed contact 1
When engaged with 18, a current path is formed through the cooperating coil 100, thereby energizing the coil and actuating the control valve 98, venting the cooperating cylinder 94 to atmosphere and cooperating valve.
Open 92.

Sliding contact 120 may be grounded in a variety of ways, but preferably and as shown, is grounded using a continuous ground contact 122 extending parallel to fixed contacts 118, 118.

As shown in FIG. 4, the sliding contact 120 is carried by an insulating arm 124 limited to the X-carriage 20. Fixed contacts, as shown in FIGS. 4, 5, and 6.
118, 118, and the continuous ground contact 122 are the edge members 7 of the table.
It is carried by an insulating member 126 glued to one of the two.
The fixed contact 118 supplies the vacuum only to one or two transverse sections of the bristle bed 110 located below the cutter 30 when the valves 92, 92 are activated when the X-carriage 20 moves in the longitudinal direction of the table. It is made into a length and arranged.

While spreading the sheet material onto the support surface 16 or while removing the cut pieces and debris from the support surface after the cutting process, it may be desirable to supply pressurized air to the bristle beds all at once, and during cutting. In some cases it may be desirable to apply a vacuum to all bristle beds at one time.
To prepare for this type of actuation, all of the valves 92, 92 need to be opened at the same time, as shown in FIG. 7, the control circuit of the valve 92 places the fixed contacts 118, 118 in parallel. And a circuit consisting of line 128 connected to ground and connected via switch 130 to ground. Coil 1 when switch 130 is closed
All of 00 and 100 are grounded and the energizing current circuit is completed therethrough, so that all of valves 92 and 92 are moved to their open position, thereby applying full vacuum or positive pressure as the case may be. Transfer to the bristle bed.

The table 10 of Figures 1-7 includes a single duct 66 extending the length of the table and the table is compartmentalized. Each of the compartments extends laterally across the width of the workpiece support surface, and each cooperates with a separate one of the valves 92, 92 to allow each of the compartments to be individually evacuated. However, if desired, one or more additional ducts can be included in the table and the table can be divided into smaller compartments. The small compartment allows the use of smaller air pumps or blowers, drawing a smaller volume of air out of the chamber contained in the table. A table containing such a large number of ducts and compartments
140 is shown as an example in FIG. Portions of table 140 that are similar to portions of table 10 of FIGS.
The same reference numerals as in FIGS. 7 to 7 are given and the description is not repeated.

Referring to FIG. 8, the table 140 includes three ducts 66.
All ducts, including a, 66b, 66c, extend the length of the table and include a portion of a horizontal panel 58 '. The three ducts 66A, 66B, 66C are spaced from each other in the transverse direction of the table with intervening spaces between them and between vertical side walls 74, 74 filled with a substrate 68 ', 68' of honeycomb material. Has been. Each of the ducts includes a number of openings 90,90 and a number of cooperating valves 92,92. The spacing and number of openings is the same for each duct, there are a number of transverse lines extending across the table and spaced from each other in the longitudinal direction of the table, along each of which there are three openings and Three valves
92, 92 are arranged. The three ducts are all commonly connected to the air conduit 54 ', as shown in FIG. 8 and all connected to vacuum or positive air pressure, depending on the time of day.

The lattice structure 108 'of the table 140 is further designed such that the individual sections of the support surface 16 cooperate with each of the openings 90,90. This is done by including two longitudinal barriers 142, 142 in the lattice structure 108 'that extend the length of the table. Barriers 142, 142 therefore cooperate with barriers 116, 116 extending transversely of the table to divide the underlying space of the bristle bed into a number of square or rectangular compartments. Each of the compartments cooperates with a separate one of the openings 90 in one or the other of the three ducts 66a, 66b, 66c.
Therefore, a vacuum is supplied to the supply conduit 54 ', and only one of the valves 92 is
When the individual is opened, a vacuum is supplied to one compartment cooperating with the valve and its opening, and a vacuum is supplied only to the cooperating compartment and cooperating portions of the underlying surface of the bristle bed.

The pneumatic and electrical circuits that control the operation of the valves 92, 92 of the table 140 of FIG. 8 are shown diagrammatically in FIG. 9th
Referring to the figure, the device is tripled to accommodate three ducts 66a; 66b; 66c, and the choice of valves to be opened according to the positions of both X-carriage 20 and Y-carriage 28. Is substantially the same as that shown in FIG. 7 for table 10, except for additional static and sliding contacts to allow

As can be seen in FIG. 9, to select the valve of either duct 66A, duct 66B, or duct 66C, table 140
Are three elongate spaced contacts 144, 144 fixed to the X-carriage 20 and a continuous contact 146 also fixed to the X-carriage 20 and extending parallel to the spaced contacts 144, 144. Selective contact means consisting of Sliding contacts 148, similar to sliding contacts 120 described above, engage continuous contacts 146 and spaced contacts 144, 144 as shown. The sliding contact 148 includes the Y-carriage 28 and the X-carriage 2
Y-carriage 28 for movement along the longitudinal direction of 0
Attached to. Therefore, the position of the X-carriage 20 determines which of the three spaced contacts 144, 144 is electrically connected to the continuous contact 146.

In order to control the valve according to the position of the X-carriage 20 along the length of the table, the table has three sets of contacts 150 located on one of the side members 72 of the table, as shown in FIG. , 152 and 154. Each such set of contacts includes a number of spaced contacts 156, 156 arranged along a common line. Each of the contacts 156, 156 is longitudinally aligned with a separate valve in a duct. Each contact set also includes a continuous contact 158 extending the length of the table and a sliding contact 160 fixed to the X-carriage 20 for movement with the X-carriage 20 along the length of the table.

Thus, from the discussion of FIG. 9, the valves 92,92 are X-carriage 20 and Y- when the illustrated switch 162 is opened.
It will be appreciated that only the position of the workpiece support surface 16 lying below or near the cutting mechanism 30 is actuated according to the position of the carriage 28 to be evacuated.
However, if vacuum or positive pressure is applied to the workpiece support surface 16
This is accomplished by closing switch 162, depending on whether vacuum is applied to supply conduit 54 'or positive air pressure is applied to supply conduit 54', if it is desired to apply to all of. The switch 162 energizes all the coils 100, 100 simultaneously to move all the valves to their open position.

[Brief description of drawings]

FIG. 1 is a perspective view of a cloth cutting device using a sheet material cutting table embodying the present invention, and FIG. 2 is a broken first part of the table to show the structure of other parts of the table of FIG. FIG. 3 is a perspective view of the table shown in FIG. 3, FIG. 3 is a vertical cross-sectional view of the sheet material cutting table shown in FIG. 1, and FIG. 4 is a fragmentary side view taken generally along line 4-4 in FIG. Is the fourth
FIG. 5 is an enlarged vertical cross-sectional view taken along line 5-5 of the figure, FIG. 6 is a fragmentary plan view of the electrical contact taken along line 6-6 of FIG. 4, and FIG. 7 cooperates with the valve of FIG. FIG. 8 is a schematic view showing a compressed air and electrically operated valve actuation system, FIG. 8 is a view similar to FIG. 2 except that a table according to a modified embodiment of the present invention is shown, and FIG. 9 is FIG. FIG. 3 is a schematic view showing a compressed air and electrically operated valve actuation system cooperating with the table of FIG. 10 ... Cutting table, 12 ... Numerical control device, 14 ... Air supply source, 16 ... Workpiece supporting surface, 18 ... Sheet material, 20 ... X-carriage, 28 ... Tool carriage, 30 ... Cutting mechanism, 36 …… Mold piece, 38 …… Cable, 40 …… Moving pulley, 44 …… Pump, 58 …… Panel, 62 …… Upper sheet, 64 …… Lower sheet, 66 …… Duct, 68 …… Honeycomb body, 70 ... first side member, 72 ... second side member, 94 ... actuator, 98 ... valve, 108 ... lattice structure, 110 ... bristle bed, 114 ... legs, 116, 142 …… Barrier, 118 …… Fixed contact, 120,148 …… Sliding contact, 130,162 …… Switch, 146 …… Continuous contact.

Claims (18)

[Claims] 1. A sheet material cutting table having a generally rectangular horizontal panel (58) that provides an upwardly facing support surface (60) and has two side edges to provide horizontal upper and lower sheets (62). , 64) and a horizontal core disposed between the sheets and adhered to each of the sheets, the core comprising the panels (58).
A duct (66: 66a; 66b; 66c) extending longitudinally of the panel and laterally spaced inwardly from opposite edges of the panel, the duct being bonded to the upper sheet (62). A top wall with a flat horizontal outer surface, a flat horizontal inner surface defining a portion of the interior of the duct, and a bottom wall with a flat horizontal outer surface adhered to the lower sheet (64). The core has a first member (68, 68 ') of honeycomb material between the duct and one of the side edges and a second member of honeycomb material between the other of the duct and the side edge ( 68, 68 '), both the first and second members of the honeycomb material being adhered to both the upper sheet (62) and the lower sheet (64),
The panel has a number of openings (90) spaced from each other along the length of the panel, each of the openings passing through the top sheet (62) and the top wall of the duct. Providing communication between the upwardly facing support surface and the interior of the duct, a number of valves (92) are carried on the panel, each of which cooperates with a separate one of the openings (90). Having a closed state and an open state that respectively block or allow air flow through the cooperating openings, each of the valves being located inside the duct and in the closed state the upper wall of the duct. A plurality of actuators (94) are carried on the panel and are engaged with the inner surface of the panel and spaced downward from the inner surface of the upper wall of the duct when in the open state;
Each of the actuators cooperates with each of the valves and has first and second biased states, and each of the actuators has a first position and a second position depending on the first and second biased states. A coupling means coupling each of the output members of the actuator to one of the cooperating valves, and a first and a second of the actuator.
The control means (98) causes each of the actuators (94) to first move each of the actuators (94) in response to movement during the energized state such that the valve moves between the open and closed states.
And a sheet material cutting table that is selectively moved between a second biased state. 2. A sheet material cutting table according to claim 1, wherein the connecting means slides through the bottom wall of the duct and the lower sheet for each valve and the duct. A vertical stem having an upper end located therein and a lower portion located below the lower seat, the valve (92)
Is fixed to the upper end of the stem and means for cooperating with a lower portion of the stem move the stem up and down with respect to the duct and move the valve between open and closed positions. , Sheet material cutting table. 3. The sheet material cutting table according to claim 1, wherein the means (70, 72) attached to each of the side edge portions of the panel is a supporting surface (60) of the panel. A side wall extending upwardly along one adjacent side edge is provided, and the lattice structure (108) is supported by the supporting surface (60) of the panel and is disposed above the side face, and the lattice structure of the panel. A grid-like top wall (11 with a number of openings above the support surface)
2) is provided, the lattice structure (108) provides a passage for air flow between an opening in the panel structure and an opening in an upper wall of the lattice structure (108), and a plurality of bristle elements are provided in the lattice. Providing a bristle bed (110) having an upper surface (16) supported on the upper wall of the structure and receiving sheet material to be cut, the bristle elements being perforated to allow air flow, and the grid A sheet material cutting table in which the structure and the bristle bed formed by the bristle element are disposed between the two sidewalls. 4. A sheet material cutting table according to claim 1, wherein edge finishing means (70, 72) is attached to each side edge portion of the panel, and each of the edge finishing means comprises: To move the panel (5
A sheet material cutting table that prepares guides (22) that support the adjacent ends of the carriage (20) that straddles 8). 5. The sheet material cutting table according to claim 1, wherein edge finishing means (70, 72) is attached to each side edge portion of the panel, and each of the edge finishing means is provided with the edge finishing means. A first side member (70) extending along the length of the panel and permanently fixed to cooperating side edges of the panel and along the length of the panel near the first side member (70). A second side member (72) extending, the second side member (72) having a portion extending laterally outwardly from the panel beyond the first side member (70); Means on a laterally outwardly extending portion of the second side member (72) for supporting an adjacent end of a carriage (20) spanning the panel for longitudinal movement of the panel. Prepare guide (22), means (80)
A sheet that removably connects a second side member to the first side member and the second side member can be removed from the first side member to reduce the width of the table for shipping. Material cutting table. 6. A sheet material cutting table according to claim 5, wherein each of the upper sheet (62) and the lower sheet (64) is made of aluminum, and the duct (6).
6; 66a; 66b; 66c) is an aluminum extruded product, each of the first side member (70) and the second side member (72) cooperating with each side edge of the panel being made of aluminum. An extruded product, wherein the first side member (70) has an inwardly extending bottom flange (76), the bottom flange (76) supportingly engaging a lower surface of a lower sheet (64) of the panel. So that the first side member (70) also has an upper flange (78) extending inward along the length of the first side member, the upper flange (78) including the upper flange (78). A sheet material cutting table extending along the length of the first side member to engage the upper surface of the upper sheet (62) of the. 7. A sheet material cutting table according to claim 4, wherein said carriage (20) is supported so as to straddle said table and to be moved along said table by said guides. Each of the elongated electrical fixed contacts (118) of the valve cooperates with a separate one of the valves (92) such that the fixed contact (118) is attached to one of the edge finishing means at one of the side edges of the panel. Sliding contacts (120) carried and carried by the carriage along a longitudinally extending line of the panel and in spaced and electrically spaced relationship to each other are carried from one end of the table to the other end. The electrical means (122, 98, 100) slides the valve (92) which cooperates with the one fixed contact in continuous sliding engagement with the fixed contact when the carriage is moved. When the moving contact contacts the one fixed contact, the two Converted state to the one, when the sliding contact is not in contact with the one fixed contact, to convert the valve to the other of the two states, the sheet material cutting table. 8. The sheet material cutting table according to claim 7, wherein fixed contact points (11) are provided at the intervals.
A continuous contact (122) fixed along the panel near the row of 8), the sliding contact also engaging the continuous contact,
A sheet material cutting table which provides a current path between any one of the fixed contact (118) contacted by the continuous contact and the sliding contact. 9. A sheet material cutting table according to claim 7, wherein said electrical means (122, 98, 100) is used.
Includes electrical actuators (98, 100), each of the electrical actuators for switching the valve between two states of the valve in response to activation and deactivation of the actuator. Cooperating with a separate one of the valves, each of the actuators having an energizing current circuit through the cooperating one of the sliding contacts and the spaced fixed contacts, each actuator being A circuit (128) that is biased when the sliding contact engages one of the fixed contacts and that is parallel to the row of fixed contacts that includes a switch (130) is the actuator when the switch is closed. A sheet material cutting table which completes an energizing current circuit through all of the actuators and operates to energize all of the actuators simultaneously. 10. A sheet material cutting table according to claim 1, wherein the carriage (20) extends over the supporting surface (16), and the edge finishing means (70, 72) is provided. A guide (22) is attached to each of the side edges of the panel (58) to move one end of the carriage in the longitudinal direction of the panel, and an electric control cable (38) is connected to the carriage. Two, wherein said edge finishing means attached to one of said side edges of said panel comprises rails (42) extending longitudinally of said panel and laterally spaced from each other by vertical slots. Providing upward parallel tracks, a number of moving sheaves (40) are carried on the rails for their longitudinal movement, each of the moving sheaves being carried by the two upward trucks and the slot. From the rail through To the cable at a point having a stem (84) extending toward the cable, the stem of the moving pulley having a sling at their lower end, the sling being spaced along the length of the cable (38). A sheet material cutting table in which the cables are engaged and suspended from the moving sheave in the form of a festoon. 11. The sheet material cutting table according to claim 10, wherein each of the finishing means (70, 72) attached to each of the side edge portions of the panel has the panel (58). ) Including a first elongate side member (70) that is permanently affixed to the cooperating side edges of the panel and a second side member (72) is provided. A portion extending along the length of the panel near the side member and extending laterally outwardly from the panel beyond the first member and extending laterally outwardly of the second side member. There is provided a guide for supporting the adjacent one end of the carriage (20) straddling the table for the means (22) above the part to move in the longitudinal direction of the panel, and to dispose the second side member (72). The means (80) for removably coupling to the first side member (70) has the second side member (72) having the first side portion (70) Allow the al detached width of the table for delivery is reduced, the rail (4
2) A sheet material cutting table, wherein 2) is a part of the second side member, and the second side member is a metal molding. 12. A sheet material cutting table according to claim 1, wherein the panel (58) includes a plurality of ducts extending in the longitudinal direction of the panel, each of the ducts being provided with the upper sheet (58). 62) has a top wall with a flat horizontal outer surface bonded to 62) and a bottom wall with the flat horizontal outer surface bonded to the lower sheet (64), the core having the duct and the side A member of honeycomb material is included in the space between the edges, the member of honeycomb material being adhered to the upper sheet and the lower sheet, the panels being spaced relative to each of the ducts in the longitudinal direction of the panel. It has a number of openings (90) placed therein, each opening passing through the upper sheet (62) and the upper wall of the duct to provide communication between the upwardly facing support surface of the panel and the interior of the duct. Prepare one of the multiple valves (92) to open the opening of each of the ducts. Provided in each, each of the valve is disposed within the single duct cooperating, the sheet material cutting table. 13. A sheet material cutting table according to claim 12, wherein a first carriage (20) is supported so as to straddle the table and move along the length of the table. Two carriages (28) are supported on and move along the first carriage, and a number of first electrical contact means (144) are fixed to the first carriage and sliding contact means. (148) is mounted for cooperating with the first electrical contact means and for movement therewith on the second carriage (28), the second electrical contact means (156, 158) being relative to the panel. Sliding contact means (160) mounted along the length and capable of cooperating with the second electrical contact means is mounted on the first carriage (20) for movement therewith relative to the panel. , First
Electrical means (98, 100) cooperating with the first electrical contact means and the second electrical contact means of the valve (92) along the length of the panel between the first and second states. A sheet material cutting table that switches according to the position of the carriage and the position of the second carriage along the length of the first carriage. 14. Sheet material cutting table according to claim 13, wherein the means for forming bristle beds (110) are spaced above the upper sheet (62) of the panel (58). A sheet material cutting table supported by a partition means (116) dividing the bristle bed and the upper sheet of the panel into a plurality of compartments, each of which cooperates with a separate one of the openings. 15. A sheet material cutting table for providing a substantially rectangular upwardly facing support surface (60) having two longitudinally extending side edges, divided into rows on the support surface. Means for providing a space, each of the compartments extending longitudinally and laterally of the support surface and arranged in rows adjacent to one another in the longitudinal direction of the support surface, in cooperation with the support surface And providing means for providing air ducts (66, 66a, 66b, 66c) fixed to the support surface, a number of openings (9) spaced from one another in the longitudinal direction of the support surface.
A support surface having 0), the openings communicating with each of the rows of compartments, means for providing air flow communication between each of the openings and the interior of the duct, a number of valves (92) A first one each of which cooperates with a separate one of the openings (90) and each of which blocks or allows air flow respectively through one of the openings of which it cooperates.
And a second state, side edge means fixed to each of the side edges of the support surface and extending longitudinally therethrough, the support surface for longitudinal movement in the support surface. A carriage (20) straddling and supported by the two side edge means, a plurality of elongated fixed contacts (118), cooperating with separate ones of the valves (92) and attached to one of the side edge means. Spaced apart from each other along a longitudinally extending line of the support surface and electrically separated from each other and having a length substantially equal to a longitudinal length of one support surface of the compartment. A sliding contact (120) carried by each of the fixed contacts (20) and in continuous sliding engagement with the fixed contacts (118) as the carriage moves from one end of the support surface to the other. ), And each one of the fixed contacts and the electrical contacts associated with the sliding contacts. Switching a valve (92), which is a pneumatic means (98, 110) and cooperates with one of the fixed contacts when the sliding contact contacts the one fixed contact, into one of its two states; A sheet material cutting table comprising: switching the valve to the other of its two states when the sliding contact does not contact the one fixed contact. 16. The sheet material cutting table according to claim 15, wherein fixed contact points (11) are provided at the intervals.
A continuous contact (122) adjacent to the row of (8) and extending along the length of the panel (58), the sliding contact (1) also engaging the continuous contact.
20) A sheet material cutting table, characterized in that a current path is provided between the continuous contact and any one of the fixed contacts contacted by the sliding contact. 17. A sheet material cutting table according to claim 15, wherein said electrical means comprises a plurality of electric actuators (98, 100), each electric actuator comprising said valve. Activating and deactivating an actuator to switch between its two states, each actuator activating through a cooperating one of the sliding contact (120) and the fixed contact (118). Each actuator is energized when it has a current path and when the sliding contact engages one of the fixed contacts, a circuit (128) is electrically coupled parallel to the row of fixed contacts and a switch ( 130), the circuit forming an energizing current circuit through all of the actuators when the switch is closed to energize all of the actuators simultaneously. 18. A sheet material cutting table for providing a generally rectangular upward bearing surface (60) having two longitudinally extending side edges, extending longitudinally and laterally of the bearing surface. Means for providing a space divided into a plurality of compartments on the support surface, a plurality of rows extending in the longitudinal direction of the support surface and the compartments arranged in a plurality of rows extending in the lateral direction of the support surface, the support Means for providing a number of air ducts (66, 66a, 66b, 66c) cooperating with a surface and fixed to said support surface, for each of said air ducts spaced from each other in the longitudinal direction of said support surface The support surface having a number of openings (90), each of the openings cooperating with a separate one of the compartments, between each of the openings and the interior of one of the air ducts cooperating therewith. Means for providing air flow communication, a number of valves (92), each of which is A valve having a first state and a second state that cooperates with a separate one of the ports and each of which blocks or allows air flow, respectively, through one of the ports with which the valve cooperates; Side edge means (70, 72) fixed to and extending longitudinally along each of the side edges of the surface, straddling the support surface for longitudinal movement of the support surface and the two side edge means. A first carriage (20) supported by a second carriage (28) mounted on the first carriage for movement across the support surface along the length of the first carriage. ), A plurality of fixed contacts (118, 144) mounted on one of the side edge means along the length of the support surface and the first carriage for movement in the longitudinal direction of the support surface. Sliding contact (12 0, 148), wherein the fixed contact comprises one contact for each of the compartments.
A length of one of the contacts measured along the length of the support surface is equal to a length of the associated section measured along the support surface of one of the cooperating compartments, the length of which is on the first carriage. A plurality of fixed contacts (156) mounted along and sliding contacts mounted on the second carriage for movement relative to the first carriage with the second carriage and cooperating with the fixed contacts (156). (160) a second selective contact means, the fixed contact including one contact for each of the compartments, the length of the one contact measured along the width of the support surface. A width substantially equal to the width of one of the cooperating compartments measured transversely to the supporting surface, and electrical means cooperating with the first and second selective contact means and the valve, According to the longitudinal position of the support surface of the first carriage and the support of the second carriage According to the direction of the position across the sheet material cutting table consisting of those, to switch the valve between the states of the state and the second first valve.