DE202009013550U1 - Cutting clip for a heating wire cutter and heating wire cutter - Google Patents

Abstract

Cutting bracket (111) for a heating wire cutting device (11) for cutting plastic, in particular plastic foam sheets, with
two spaced-apart, preferably parallel legs (115; 117), whose opposite first ends form attachment or suspension points (43, 55; 49, 145) for a wire (45),
a heating wire (45) serving as a cutting wire, which is spanned between the attachment points (43, 55) and whose ends are fixed to the legs (115, 117),
characterized,
in that one end of the cutting wire is wound on a wire supply roll (57) so that a supply of unconsumed cutting wire (45) is available on the wire supply roll (57), and means are provided for fixing the wire supply roll (57) in a certain rotational position ,

Description

The The invention relates to a cutting bracket for a Heizdrahtschneidgerät according to The preamble of claim 1 and a Heizdrahtschneidgerät.

Heizdrahtschneidgeräte are especially known for cutting thermal insulation panels for exterior thermal insulation systems from expanded Polystyrene (EPS or XPS) and other foam boards.

at such heating wire cutters is the temperature of the wire given by the length of the wire Cutting wire and the electrical power applied to the wire, as well as the existing cooling of the cutting wire, resulting in the cutting of the foam material established. There are therefore two parameters that are used when cutting with a Cutting wire can be adjusted and matched to each other Need to become, namely the Length of the Wirts and the fed-in power. Usually heating wire cutters are transformers fed. There are heating wire cutters whose transformer power stepless or over several levels can be adjusted, and others where off two stages are selected must, as well as those, where the output power of the transformer immutable given is. Because the wire length depends from the formation of the connection points, the wire length is only for individual special devices variable. There are also devices with two cutters, namely a plate cutting bracket, its long cutting wire normally parallel to the plate support is taut, and a Eckschneidbügel whose short cutting wire Normally, the plane of the plate support geometrically cutting is curious. The long plate clip is on the plate dimensions tuned, so depending on the device only the width, the length or even the diagonal of the plate can be cropped. The Eckschneidbügel is provided to cut out cutouts from the plate. The length of the Cutting wire is therefore substantially matched to the plate thickness.

In any of the known cases the cutting wire is longer as the dimension to be cut, so that the cutting wire areas has, which are adjacent to the material to be cut and therefore when cutting, not through the material of the foam insulation board chilled become. The cutting performance of such a cutting wire depends on the temperature of the cutting wire in the area to be cut Insulation board. This means that to achieve a great cutting performance preferably big electricity is to be sent through the wire. However, there are sections of the wire next to the insulation board There is a risk that the wire is where it will last for a long time not cooled, brittle will and finally breaks. In this case, a new wire be clamped.

The Object of the present invention is now a cutting bracket of a Heizdrahtschneidegeräts to further develop that a cutting wire break as possible quickly recoverable and does not lead to major production interruptions. aim it is also, if possible, the operating costs of the Heizdrahtschneidgeräts to keep it low.

These Task is according to the invention at a Heizdrahtschneidgerät according to The preamble of claim 1, characterized in that one end of the cutting wire is wound up on a wire supply roll, so a supply available on unused wire stands. Advantageous developments of the invention are defined in the subclaims. This stockpiling has the significant advantage that in case a wire break the wire only in the length of the broken piece out The role needs to be followed and its end needs to be refocused. This reduces wire loss and simplifies replacement become. Where so far a piece of wire cut to length from a roll had to be, for what the wire supply roll and a pair of pliers had to be procured the new free end can be attached without tools. Where so far two ends had to be fixed, the new cutting device only an end to be attached. The wire can be turned back by doing this stretched and stretched the role. Intended on the wire scroll Locking means allow to fix the wire roll, so that a Rotation and unwinding of the cutting wire is prevented.

Advantageous is that the wire supply roll hinged to a leg of the cutting bracket and is detectable by means of a locking screw. In this Case is preferably fixed to the opposite leg End of the cutting wire biased by a spring. According to one preferred embodiment However, the wire supply roll is arranged on a carriage, which displaceably mounted along a rail or guideway and is biased by a spring. By spring preload, the Wire tension independently from the changes in length caused by temperature differences practically always kept the same. Conveniently, the wire supply roll arranged on a carriage, which along the guideway is displaceable. The spring on the carriage can attack to the necessary To cause bias of the cutting wire. An expedient embodiment provides that the slide slidably received in a C-profile is.

Advantageously, the spring means between the wire supply roll or the carriage and a Be fixing point arranged on the leg. This is a simple and functional design. Conveniently, at least one of the attachment or suspension points for the wire is formed by a deflection roller.

object The present invention also relates to a heating wire cutting apparatus for cutting plastic, in particular plastic foam boards, with a cutting bracket according to the invention. One such cutter has a support for arranging an insulation board to be processed, at least one arranged or arranged at an angle to the support guideway for the cutting bar, to the cutting bracket move relative to the pad, and power points to the Heating wire to connect to a power source. Such cutters can be used for different cutting jobs be used by plastic foam boards.

Advantageous are the spaced, parallel legs in guideways for the realization of a linear guide guided, around the cutting bar to shift relative to the edition. Have appropriate cutters two spaced guideways, and on the legs of the cutting bracket Sliders are arranged, which with the guideways for the realization a straight line guide interact. To the device Being able to set up quickly on the construction site is a preferred provided together or retractable leg on which the Heizdrahtschneidgerät arranged is.

According to one preferred embodiment owns the heating wire cutter two cutting bars, namely a first cutting bracket for To run of cuts in which the wire of the first cutting clip is parallel runs to the flat sides of the plastic foam boards, and a second cutting bracket for cutting recesses, wherein the wire of the second cutting bracket parallel runs to the narrow sides of the plastic foam boards. there can only one or both cutting bars be equipped with a wire supply roll. The Heizdrahtschneidgerät can as Table model executed, with fastening means for attaching the cutter to a Scaffolding or equipped with a preferably collapsible or folding leg be.

following The invention is based on the embodiments shown in FIGS described by way of example.

1 schematically shows a frontal view of a first embodiment of an inventive Heizdrahtschneidgeräts with an uncut plastic foam plate.

2 shows the same frontal view after a first and horizontal section.

3 shows the same frontal view after a second and vertical section.

4 shows the same frontal view after a third and horizontal section.

5 shows a side view of the cutting bracket.

6 shows a schematic view of an extension and a fair graduation in detail.

7 shows the first attachment point for the cutting wire.

8th shows a side view of the cutting bracket in an alternative embodiment.

9 shows schematically a second embodiment of a Heizdrahtschneidgeräts in a side view;

10 schematically shows the Heizdrahtschneidgerät of 9 in another side view;

11 shows a further embodiment of a cutting bracket in a perspective view; and

12 , shows an embodiment of a Heizdrahtschneidgeräts also in a perspective view.

In the illustrations according to 1 to 3 is the plastic foam board to be cut 10 transparent, so that the construction of the heating wire cutter 11 is visible in 4 However, the plastic foam plate is shown opaque. The heating wire cutter 11 is merely equipped with a so-called corner cutter on which the present invention is described by way of example. Corner cutters are used in particular to cut out cutouts from insulation boards. The absence of a normal cutting bar, which is displaced when cutting perpendicular to the flat side of plastic foam plate and plate support, does not mean that such must not be present. Of course, the corner cutter can be used for cutting whole plate widths, ie, that it can also be alone.

The heating wire cutter 11 has a record pad 13 , a support bar 15 and a foothold 17 , The plate pad 13 has a side edge, which is parallel to the plate support 13 and perpendicular to the normal position of the support bar 15 extends, a guide rail 19 , The plate pad 13 defines a support surface for the plastic foam sheets to be cut 10 , However, it is preferably broken through and narrower in width than the support bar 15 lying plastic foam board 10 , The plate pad 13 but is designed to be higher than necessary for the application of a plastic foam board. The minimum height of the plate support from the support bar 15 protrudes upwards, is by the width of the plastic foam plate and by the cutting height of the cutting bracket 21 given. The cutting bracket 21 must total across the width of the plastic foam board 10 be liftable. The cutting device and the cutting bracket can therefore be designed in different sizes.

On a side edge of the record overlay 13 is the cutting bar 21 arranged height adjustable. For this purpose, a guide rail is on this side edge 19 arranged. In the guide rail 19 are gliders 23 arranged on the cutting bracket 21 are attached. With a locking screw, not shown in the figures, the cutting bracket 21 at any height on the guide rail 19 ascertainable.

However, to make cutouts faster than with conventional cutters and yet cut precisely, the device shown is a slider or extension 27 on the cutting bracket 21 formed over the plate support 13 enough. Furthermore, it is on the record pad 13 a vertically oriented mass graduation 29 educated. The mass division 29 starts at zero at a certain height above the support bar 15 , If the wire of the cutting bracket 21 is at zero height, so at the height of the support bar, then shows the extension 27 the height zero on the mass division 29 at. If now the cutting bracket 21 is lifted so that the cutting wire at a distance A ( 6 ) above the support bar 15 is, the extension indicates the distance A. This can be determined by the position of the extension 27 on the mass division 29 a cut to size and without precursors are performed.

So that the cutting bar 21 does not need to be determined with the locking screw and a certain amount can be repeatedly cut without repeated adjustment effort, are on the Masseinteilung tab 31 . 33 fixable. These riders 31 . 33 form stops for the extension 27 , They can be set to a specific size and locked so that the extension 27 and thus the cutting wire 45 repeatedly adjusted to this size, without the cutting bracket 21 to have to determine and without having to pay attention to the dimensional accuracy of the height position of the cutting bracket.

This allows a cut-out, which must be cut out on a plastic foam board, to be measured in the building and directly on the heating wire cutting machine with the rider 31 . 33 be set. If the cut-out to be cut out, for example, starts 35 cm above the side edge of a plastic foam board resting on the support strip, should be 20 cm deep and 15 cm high, the procedure is as follows (see also FIG 1 to 4 ). First, the riders are set to the dimensions 35 cm and 50 cm (= 35 cm + 15 cm). Then the plastic foam board 10 (for example, with the width 60 cm) on the support bar 15 placed and the cutting bracket 21 with the extension 27 on the first rider 31 hung up ( 1 ).

On the support bar 15 is also a mass division available, the zero point is in the cutting plane. The plate 10 So it's on the support bar 15 moved so far until the front side edge reaches the dimension 20 cm on this mass division. The depth of the cut is cut ( 2 ). Then the extension of the first rider 31 taken and on the second tab 33 won ( 3 ). The height of the cut is cut. Then the plastic foam plate is pulled out of the area of the cutting wire, whereby the cut is completed. The neckline is cut to size. The section 35 ( 4 ) can the plastic foam plate 10 be removed.

How out of this process and the 1 to 4 is apparent, is the extension 27 expediently about an axis parallel to the direction of the rider 31 .33 pivoted to the rider 31 . 33 be turned off and be able to be solved by these again. The extension 27 is conveniently as a handle 28 formed, on which the whole cutting bracket 21 can be moved.

So the riders 31 . 33 not in conflict with the guide rail 19 come, they are arranged on the inside of the record support. So that they can be placed on the inside of the plate support without them passing over the plane of the plate support 13 protrude, is in the plate support a recess 37 available. This recess 37 is therefore expediently at least as high as the width of the plastic foam sheets to be cut. This allows to make an incision at each point of the narrow side of this plastic foam plate.

The procedure described above is for creating a cutout on the right narrow side of a plastic foam board shown in the figures. Working from left to right but also easier for cutouts on the left narrow side than working from right to left. Thus, the cutouts can be cut out on the left narrow side of a plastic foam plate, two opposing mass divisions can be present next to each other. One has the zero point at the point described above, the other starts with zero at the height of the normal, customary plate width, for example at 50 cm. The plate width is displayed on the second mass graduation, when the cutting wire is at the height of the support bar.

The cutting bracket 21 according to 5 is formed as follows. At an upper end is a pivot plate 39 rotatably with a side member 41 connected. The side member 41 is by means of glides 23 ( 1 ) in the guide rail 19 slidably mounted and lockable by a locking screw, not shown, in a known manner at any altitude. For clear distinction from guide rail 19 and side members 41 These are not completely covered in the figures. But is preferred when the guide rail 19 directly a part of the record overlay 13 forms and therefore the side member 41 (contrary to the drawing) does not project beyond this level.

At the lower end of the longitudinal member 41 is a first attachment point 43 for the cutting wire 45 educated. This first attachment point 43 is in the 7 shown in a horizontal section. One with the side member 41 Connected platen is slotted horizontally so that the cutting wire 45 around a rotation axis 47 can be pivoted. The rotation axis 47 is formed by a threaded bolt on which a mounting washer 49 is freely rotatably mounted. In the mounting disc 49 At least one bore or opening is provided through which the cutting wire 45 can be threaded. The cutting wire just needs to be pulled through this hole and then twisted slightly to fix its end to it. Under the bias of the cutting wire, the mounting plate is aligned. The height of the mounting washer 49 can be adjusted by adjusting two nuts screwed onto the threaded rod. The mounting washer 49 is dimensioned so that its edge is only approx. 1 mm behind the plane of the plate support. As a result, the cutting wire is almost completely within the material to be cut when cutting a plate and therefore has no uncooled location. This increases the life of the wire and allows working with increased wire temperatures, resulting in a faster cutting speed.

The cutting bracket has a swivel arm at the upper end 51 at which the outer thigh 53 is arranged ( 5 ). The length of the swivel arm 51 determines the maximum length of the cutting wire 45 and thus the upper limit of plate thicknesses that can be cut with this bracket. The thigh 53 can along the swivel arm 51 be slidably attached. By moving the thigh 53 along the swivel arm 51 Therefore, the wire length can be changed and thus the plate thickness of the plastic foam plate can be adjusted.

In combination with a second platen 56 at the second attachment point 55 This makes it possible to heat the wire exactly in that area which is within the plastic foam plate during the cutting process. By the pressure on the wire 45 when cutting this bends through and pulls the second attachment point 55 against the first attachment point 43 until the platen 56 and the mounting plate 49 rest on the surfaces of the applied plastic foam board. Because the cutting wire through the second platen 56 is pulled through, this insert carries the current from the attachment point of the cutting wire. It carries it off with optimum adjustment of the wire length on the surface of the material to be cut.

In the second attachment point 55 is the cutting wire 45 in a known manner to a pulley 58 guided around. At a distance to the pulley 58 is the cutting wire 45 on a wire supply roll 57 wound. The wire supply roll 57 is in turn displaceable on the thigh 53 stored and by a spring 59 biased so that the cutting wire is biased. The wire supply roll is on a carriage 60 arranged, which in a guideway, for. B. a C-shaped groove, on the leg 53 is included. By a knob 54 can the wire supply roll 57 locked so that it can not rotate and does not release the wire rolled up on it. Since the wire is present as a supply on the wire supply roll, in the event of a wire breakage of the cutting wire can be replaced quickly by unused wire in the length of the broken piece drawn from the wire reel and the front end again at the first attachment point 43 is fixed. As a result, the wire loss can be reduced in case of wire breakage and the replacement of the cutting wire can be simplified.

The swivel arm 51 can in different ways on the swivel plate 39 be attached. In 5 he is below the swivel plate 39 arranged and is by tightening the locking screw 61 against the swivel plate 39 drawn. By this train, the cutting wire is stretched and at the same time also becomes a contact point 63 on the swivel arm 51 against the electrically conductive pivot plate 39 drawn. This creates an electrical contact between the pivot plate and the swivel arm. Because the swivel plate 39 and the swivel arm 51 from the side member 41 are electrically isolated, so that the cutting wire can be put under tension.

In 8th is the swivel arm 51 above the swivel plate 39 arranged. It is electrically separated on the pivot plate, which in turn is electrically from the side rail 41 is disconnected. The locking screw 61 pushes the swivel lever 51 when tightening the swivel plate 39 away and at the same time provides the electrical contact between the pivot plate 39 and the swivel arm 51 ago. Also in this arrangement, the cutting wire by tightening the locking screw 61 stretched and fixed the corner cutter in the selected pivot position.

In 5 is a limit switch on the corner cutter 65 formed, on which a power supply line 16 connected. The limit switch 65 interrupts the current when the corner cutter is brought into the upper end position and switches on the power when it is pushed out of this end position. It is at the top of the guide rail 19 an elastic plate 67 arranged on which past a rocker arm of the limit switch 65 to be led. Passing the tile 67 the rocker arm is tilted and thereby actuates the limit switch.

The extension 27 and the mass division 29 are in 6 shown slightly larger. On a metal profile is the mass division 29 appropriate. In or on this metal profile are riders 31 slidably arranged and can with a locking screw 71 be determined on the profile. The top of the rider 31 shows the set dimension. The extension 27 overlaps the mass division 29 and makes a handle 28 for moving the corner cutter in height. The extension 27 is about an axis 73 pivotally attached to the corner cutter, so that it can be pivoted against the profile with the mass distribution, or can be swung away from this profile. The pivot axis 73 is parallel to the direction of the corner cutter, and therefore parallel to the guide rail 19 and the side member 41 , The upper edge of the extension 27 can be used to read the mass on the mass graduation. The dimension shows the distance of the cutting wire 45 from the support bar 15 at. At the extension is a stop 75 trained, the rider 31 can strike. The stop 75 is flush with the top of the extension 27 , If so the stop 75 on a rider set to a certain extent 31 . 33 rests, so can the set dimension above the upper edge of the extension 27 be read. For this purpose, it is provided that the rider covers only a part of the width of the mass division and next to the same measure can still be read. The attack is also corresponding 75 not over the whole width of the mass division available, but only there, where he on the rider 31 can strike.

At the extension / handle is also a switch 77 formed, which serves to turn on and off the power supply for the cutting wire.

That in the 9 and 10 As shown in the first embodiment, the cutting device shown also has a direction perpendicular to the cutting wire 45 movable cutting bracket 111 , The cutting wire 45 is with one end on a first leg 115 attached and with the second end to a second leg 117 , The two thighs 115 . 117 are with a jetty 119 connected to a U-shape. The two legs extend parallel to each other, and the bridge 119 extends at right angles to the thighs 115 . 117 , The cutting wire 45 has a normal position parallel to the bridge 119 , but is adjustable in its inclination to normal position. The cutting bracket 111 is with gliders 121 . 123 equipped in a guide rail 125 (dashed lines) can be slidably arranged. These gliders 121 . 123 are rotatable on the first leg 115 stored. The hinges facilitate the insertion of the slider 121 . 123 in the guide rail 125 , The gliders 121 . 123 form together with the guide rail 125 a straight line.

The non-pivoting first leg 115 carries a sliding plate 129 on which a plain bearing for the bridge 119 is formed. The jetty 119 is about a virtual pivot axis (pivot center) 135 pivotable on the first leg 115 stored. bearing body 137 allow sliding on the sliding plate 129 , A locking knob 139 at the jetty 119 Can be rotated to lock between the bridge 119 and the sliding plate 129 to achieve or solve in a selected pivot position.

From the 10 goes on to show that on the pivotable second leg 117 trained attachment point 141 for the cutting wire 45 along the longitudinal extent of which is displaceable. In a once taken displacement position of the cutting wire by tightening a locking screw 143 lockable. It is the second leg 117 designed as a C-profile and inside the C-profile is a carriage 144 arranged, a deflection roller 145 carries around the the cutting wire 45 is diverted. The cutting wire 45 extends from the pulley 145 approximately parallel to the second leg 117 to a wire supply roll 57 to which a tension spring acts. The illustrated wire supply roll 57 is on a sled 148 also movable and lockable in the C-profile of the second leg 117 stored. The ers te thighs 115 also has a locking screw 149 , with the whole cutting bracket on the guide rail 125 is detectable.

In 11 is a cutting bar 111 with thighs 115 . 117 shown, which are made of a C-profile. The C-profile serves to accommodate the carriage 148 on which the wire supply roll 57 is arranged. At a distance from the wire supply roll is in the C-profile another slide 151 arranged, which by means of a locking screw 153 in a position along the thigh 117 is detectable.

This in 12 shown cutting device 11 has a platen 155 on which a cutting bar 111 is arranged. The cutting bracket 111 has two on opposite narrow sides of the support plate 155 provided guideways 157 in which the thighs 115 . 117 of the cutting bracket 111 are guided axially displaceable. The guideways 157 are about a pivot axis, which in the bearing surface of the support plate 155 runs, swiveling. For locking the cutting bracket 111 in a certain angular position relative to the support plate 155 are guides on the narrow sides 159 provided, which at the side edge of the support plate 155 and at the guideways 157 are articulated. Locking knobs 161 with screw thread allow that in the guideways 157 recorded cutting bracket in any angular positions relative to the support plate 155 determine. In this embodiment, the spring 59 not in direct connection with the wire supply roll 57 but moored at the end of the wire. At the front edge of the platen 155 is a C-rail 125 arranged, which serves the attachment of a corner cutter.

The invention relates to a cutting bracket 111 for a Heizdrahtschneidgerät, as well as a device with such a cutting bracket 111 , The cutting bracket 11 includes a first leg 115 and a second leg 117 , as well as one of the two thighs 115 . 117 to a U-shaped bar connecting bridge 119 , Between the free ends of the thighs 115 . 117 is a cutting wire 45 clamped. This wire 45 is connectable to a power source to heat it up. On one on the cutting bracket 111 arranged roll 57 is a longer unused piece of cutting wire rolled up, so anytime and on-site a supply of wire is available. The wire is biased in a conventional manner on at least one side by means of a spring to compensate for temperature-induced changes in length.

10

Plastic foam plates

11

Heizdrahtschneidgerät

13

plate support

15

Support ledge

17

foothold

19

guide rail

21

cutting bow

23

skid

27

extension or slider

28

Handle on the extension

29

vertical mass graduation on plate support 13

31 33

equestrian

35

cutout section

37

recess in the plate pad

39

swivel plate

41

longitudinal beams

43

first Attachment point of the wire

45

cutting wire

47

axis of rotation of the cutting wire

49

mounting disk

51

swivel arm

53

leg

55

second Attachment point of the wire

56

platen for wire

57

wire roll

58

idler pulley

59

feather

60

carriage

61

locking screw

63

Contact point between locking screw 61 and swivel plate 39

65

limit switch

67

Tile

71

locking screw for riders

73

swivel axis of the extension

75

attack of the extension

111

cutting bow

115

first leg

117

second leg

119

web

121 123

skid

125

guide rail

129

sliding plate

135

swivel axis

137

bearing body

141

fastening point

143

locking screw

144

carriage for pulley / wire attachment

145

idler pulley

148

carriage for wire scroll

149

locking screw

151

carriage

153

locking screw

155

platen

157

guideways

159

guides for adjustment Angular position of the cutting bracket

161

Locking knobs

Claims (14)

Cutting bracket ( 111 ) for a heating wire cutter ( 11 ) for cutting plastic, in particular plastic foam sheets, with two spaced-apart, preferably parallel legs ( 115 ; 117 ), whose opposite first ends fastening or suspension points ( 43 . 55 ; 49 . 145 ) for a wire ( 45 ), serving as a cutting wire heating wire ( 45 ), which between the attachment points ( 43 . 55 ) is stretched and whose ends on the thighs ( 115 ; 117 ) are fixed, characterized in that one end of the cutting wire on a wire supply roll ( 57 ) is wound, so that on the wire supply roll ( 57 ) a supply of unused cutting wire ( 45 ) and that means are provided to close the wire supply roll ( 57 ) in a certain rotational position. Cutting bracket according to claim 1, characterized in that the wire supply roll ( 57 ) on the thigh ( 53 ; 117 ) is hinged and by means of a locking screw ( 54 ) is detectable. Cutting bracket according to claim 1 or 2, characterized in that on the leg ( 53 ; 117 ), on which the wire supply roll ( 57 ) is arranged, extending in the longitudinal direction of the leg guide ( 19 ), and the wire reel ( 57 ) along this guide ( 19 ) is displaceable and lockable. Cutting clip according to one of claims 1 to 3, characterized in that the wire supply roll ( 57 ) on a sledge ( 60 ; 148 ), which along the guide ( 19 ) displaceable and by means of locking means ( 54 ) is detectable. Cutting clip according to one of claims 1 to 4, characterized in that the cutting wire ( 45 ) at least at one end by means of spring means ( 59 ) is biased. Cutting clip according to claim 5, characterized in that the spring means ( 59 ) with a first end either on the wire supply roll ( 57 ) resp. the sledge ( 60 ; 148 ), on which the wire supply roll ( 57 ), or at the free end of the cutting wire ( 45 attack) and with the other end on the thigh ( 115 . 117 ) of the cutting bracket ( 111 ) are attached. Cutting clip according to one of claims 1 to 6, characterized in that at least one of the attachment or suspension points ( 43 ; 55 ) for the cutting wire ( 45 ) by a deflection roller ( 58 ; 145 ) is formed. Cutting bracket according to one of claims 1 to 7, characterized in that the second ends of the legs ( 41 . 53 ; 115 . 117 ) by means of a transverse web ( 51 ; 119 ) are connected so that the legs and the web ( 51 ; 119 ) a bracket ( 111 ). Cutting bracket according to one of claims 4 to 8, characterized in that the carriage ( 60 ; 148 ) is slidably received in a C-profile. Cutting clip according to one of claims 1 to 9, characterized in that the legs ( 115 ; 117 ) are formed by C-profiles or equipped with such. Heating wire cutter ( 11 ) for cutting plastic, in particular plastic foam boards, with a cutting bracket ( 111 ) according to one of claims 1 to 10, further characterized by a support ( 13 ; 155 ) for arranging an insulating panel to be processed at least one guide track arranged at an angle to the support ( 157 ) for the cutting bracket ( 111 ) to the cutting bracket relative to the support ( 13 . 155 ), and power points ( 16 ) to connect the cutting wire to a power source. Heating wire cutting apparatus according to claim 11, characterized in that the parallel legs ( 115 ; 117 ) in guideways ( 157 ) are led to the realization of a linear guide. Heating wire cutting apparatus according to claim 11 or 12, characterized in that the Heizdrahtschneidgerät ( 11 ) two cutting bars ( 111 ), namely a first cutting bracket ( 111 ) for making cuts in which the cutting wire ( 45 ) of the first cutting clip ( 111 ) parallel to the flat sides of the plastic foam panels resp. the plate support ( 13 ; 155 ) runs, and a second arranged on the support cutting bracket ( 111 ) for cutting out recesses, wherein the wire ( 45 ) of the second cutting bracket ( 111 ) in the normal position parallel to the narrow sides of the plastic foam panels resp. runs perpendicular to the plate support. Heating wire cutting device according to one of claims 11 to 13, characterized in that the cutting device designed as a table model, with fastening means for fastening the cutter on a scaffold or with a preferably foldable or folding leg ( 17 ) Is provided.