CN2164969Y

CN2164969Y - Plastic board severing device

Info

Publication number: CN2164969Y
Application number: CN 93222988
Authority: CN
Inventors: 马宏亚
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-08-30
Filing date: 1993-08-30
Publication date: 1994-05-18
Anticipated expiration: 2003-08-30

Abstract

The utility model discloses a convenient and rapid blow moulding board cutting device, which uses the heat generation of an electric heating wire to realize the cutting function. The cutting device takes a battery as a power source, and a loop of the battery, a conductive rod and the electric heating wire is formed in the cutting device. After the power source is switched on, the electric heating wire generates heat, and the cutting device operates. Simultaneously, the length of electric heating wire can be adjusted through the up and down movement of the conductive rod to realize cutting blow moulding boards with dissimilar thickness.

Description

Plastic board severing device

The utility model relates to a kind of cutter that can cut blowing plate (polystyrene foam plastics), the particularly cutter of being made up of heating wire, power supply, conducting rod.

The application of blowing plate at present is very extensive, as makes insulation material, ornament materials etc., and cutting out of blowing plate generally all is with knife or handsaw cutting, and shape is irregular, and waste of material.

The purpose of this utility model just provides a kind of blowing plate cutter, and it can be quick, fitly cuts out pattern and font that we want.

The purpose of this utility model is achieved in that in handle as power supply, the negative pole of battery links to each other with a conducting rod with battery, and positive pole links to each other with another root conducting rod by switch; The other end of two conducting rods is twined by a heating wire and connects simultaneously, and battery → conducting rod → heating wire → conducting rod → switch → battery has just formed a loop like this.When switch pulls out to connection power supply one side, loop energising, electrothermal wire heating.According to Joule's law, heat that electric current produces by conductor and current strength square be directly proportional and the resistance of conductor is directly proportional and be directly proportional conduction time, i.e. Q=I ²Rt is so the height of heating temp can change by the size that changes the heating wire resistance value.The heat resisting temperature of general blowing plate is about 100 ℃, and when temperature was between 100 ℃～150 ℃, the blowing plate can soften and forms liquid.The heating wire of heating power is just by this principle cutting blowing plate.When the heating wire contact blowing plate of heating, the blowing plate around heating wire also generates heat and is cut off, and continuous when mobile when heating wire, the blowing plate just constantly is cut, and when switch pulled out to opposite side, power supply was disconnected, and cutter quits work.Owing to adopted such scheme, can guarantee that the pattern, the font that cut out are attractive in appearance, neat, and improve cutting efficiency, bring many convenience for our work.

Below in conjunction with accompanying drawing the utility model is further specified.

Fig. 1. vertical view of the present utility model.

Fig. 2. internal view of the present utility model.

1. heating wire, 2. conducting rods, 3. handles, 4. batteries, 5. switches, 6. metal contacts, 7. trip bolts, 8. springs among the figure

In Fig. 2, it is the cavity of insulator that a conducting rod (2) extend into handle (3) from the front end of handle (3), fuse with spring (8), battery (4) places the cavity of handle (3), the negative pole of battery (4) contacts with spring (8), positive pole is connected with an interface of switch (5), and metal contact (6) is connected with another interface of switch (5); One side that another root curves the conducting rod (2) at right angle places the interior groove of handle (3), contacts with metal contact (6), and can move up and down along groove, to adjust the length of heating wire (1); Screw (7) is a trip bolt, can fastening conducting rod (2) when tightening; Conducting rod (2) another side stretches out in handle (3), another root conducting rod (2) keeping parallelism that stretches out with front end.Wind up with the front end of a heating wire (1), just constituted a loop in the whole cutter two conducting rods (2).When switch (5) is dialled to energising one side, battery (4) work, heating wire (1) heating utilizes the heating wire (1) of this root heating just can realize cutting function.Because the length of heating wire (1) can be adjusted, therefore can select the heating wire (1) of different length according to the blowing plate of different thickness.

Claims

1, a kind of blowing plate cutter is characterized in that: with the battery power supply, and battery → conducting rod → heating wire → conducting rod → switch → loop of battery formation, when battery was connected, the electrothermal wire heating realized cutting function.

2, cutter according to claim 1, it is characterized in that: a groove is arranged in the handle, and a conducting rod just in time is arranged in groove and also can moves up and down along groove, adjusts heating wire length to reach, the purpose of cutting different-thickness blowing plate, the conducting rod of adjusting is fastening with screw.