CN2668352Y - Wire-shearing machine tool bit - Google Patents

Abstract

The utility model discloses a wire-shearing machine tool bit, which comprises a tool bit base 1, a tool bit cover 2, a crankshaft 3, a bearing 4 and a blade set. The tool bit cover is arranged at the top of the tool bit base 1 and forms a hollow chamber 20 between the tool bit cover and the tool bit base. The lower part of the tool bit base 1 is respectively provided with an inlayed pipe 8 and a wire suction pipe 9, the crankshaft 3 is arranged in the inlayed pipe 8, the top of the crankshaft extends into the chamber 20, and the wire suction pipe 9 is connected with the chamber 20. A direction changeover mechanism is arranged at the bottom of the chamber and between a movable blade 5 and the crankshaft 3, and the direction changeover mechanism comprises a slide block 11, a swing block 12 and a mandrel 13. The slide block 11 is sheathed outside the top end of the crankshaft 3, the slide block 11 is arranged in a slot 15 at the back end of the swing block 12, and the middle part of the swing block 12 is arranged on the mandrel 13. The movable blade 5 and a fixed blade 6 are positioned at one side of the crankshaft 3, and a boss 16 at the top end of the swing block is plugged in slide slot 17 of the movable blade 5. The wire-shearing machine tool bit can be held by hands to shear wires. The wire-shearing machine tool bit has the advantages of more convenient use, labor intensity reduction, good sealing property, little air leakage, better wire suction effect, low noise and electricity saving.

Description

A kind of wire cutting machine tool bit

1, technical field:

The utility model relates to the cutter head of trimming machine.

2, background technology:

Articles of dress uses the trimming machine mostly to adopt the cutter head of electrodynamic mechanical type at present, the cutter head of the existing electrodynamic mechanical type part that all comes with some shortcomings, for example, Chinese patent notification number CN2579925Y, the day for announcing is on October 15th, 2003, the patent No. is: 022729038, name is called the cutter head that discloses a kind of trimming machine in " a kind of cutter head of trimming machine ", its weak point have following some: 1) the knife cut direction is with to drive rotating shaft vertical, but cutter head needs to move along the stitching direction of ready-made clothes is parallel during owing to trimming, hand is got hold of not smoothly, makes the inconvenience that operates; 2) tool tip can form the gas leakage groove in its both sides, has influenced the suction lineman and has made effect, guarantees that in order to make the suction lineman makes effect, must increase the pressure of inhaling spool, noise is increased, and compare power consumption; 3) in the trimming process, slide block drive that cutting blade makes it and fixed blade between form relative motion, for better slip, need on chute, add lubricating oil, lubricating oil can overflow from cutter head, is infected with at cloth, influences the quality of cloth; 4) slide block drives cutting blade and moves back and forth, inhales the air-breathing of spool, all can produce very big noise, and whole cutter head sealing is poor, can not effectively reduce noise.

The purpose of this utility model provides a kind of wire cutting machine tool bit, it is by being provided with the direction rotating mechanism between cutting blade and bent axle, make bent axle parallel, can hand wire cutting machine tool bit and carry out trimming, use convenient with set of blades, reduced labour intensity, increase work efficiency, whole tool tip and cutter head lid good airproof performance, it is little to leak gas, it is better to inhale the line effect, and noise is lower.

The utility model is achieved by the following technical solution: it comprises the jet blade seat, the cutter head lid, bent axle, bearing and set of blades, wherein set of blades comprises cutting blade, cutter stator and compressing tablet, the cutter head lid is installed in the top of tool tip and forms cavity volume between them, the bottom of tool tip is provided with the edge pipe respectively and inhales spool, the crankshaft installed of cover upper bearing (metal) is in the edge pipe, the bent axle top extend into the cavity volume the inside, inhaling spool is communicated with cavity volume, bottom at cavity volume, be provided with direction switching mechanism between cutting blade and bent axle, this direction switching mechanism comprises slide block, centering block and mandrel, slide block set is contained in the outside, top on the bent axle, slide block places the tail end groove the inside of centering block, the centering block middle part is installed on the mandrel, cutting blade, cutter stator is positioned at the side of bent axle and is installed on the side of tool tip, and the top boss of centering block is embedded in the chute of cutting blade.

Above-mentioned described in the cavity volume side, the set of blades afterbody is provided with the oil sealing felt.

Above-mentioned described cutter head lid regulates catch by air quantity and bonnet assembles, and air quantity is regulated catch and is provided with corresponding wire casing.

The utility model compared with prior art has following advantage: 1) make blade turn over certain angle by increasing the direction rotating mechanism, make bent axle parallel, can hand wire cutting machine tool bit and carry out trimming, use convenient with set of blades, reduced labour intensity, increased work efficiency; 2) the suction spool directly is set in tool tip, whole tool tip and cutter head lid good airproof performance, it is little to leak gas, and suction line effect is better, and noise is reduced greatly, and relatively power saving; 3) the oil sealing felt is set between direction rotating mechanism and cutting blade, can prevents that lubricating oil from overflowing; 4) on air quantity adjusting catch, be provided with corresponding wire casing, the easier set of blades that is inhaled into of the end of a thread is sheared.

4, description of drawings:

Below in conjunction with accompanying drawing the utility model is done detailed explanation:

Fig. 1 is an exploded perspective view of the present utility model.

5, the specific embodiment:

As shown in Figure 1, the utility model comprises tool tip 1, cutter head lid 2, bent axle 3, bearing 4 and set of blades, wherein set of blades comprises cutting blade 5, cutter stator 6 and compressing tablet 7, cutter head lid 2 is installed in the top of tool tip 1 and forms cavity volume 20 between them, the bottom of tool tip 1 is provided with edge pipe 8 respectively and inhales spool 9, the bent axle 3 of cover upper bearing (metal) 4 is installed in the edge pipe 8, bent axle 3 tops extend into cavity volume 20 the insides, inhaling spool 9 is communicated with cavity volume 20, bottom at cavity volume 20,3 on cutting blade 5 and bent axle are provided with direction switching mechanism, this direction switching mechanism comprises slide block 11, centering block 12 and mandrel 13, slide block 11 is sleeved on the outside, top on the bent axle 3, slide block 11 places tail end groove 15 the insides of centering block 12, centering block 12 middle parts are installed on the mandrel 13, cutting blade 5, cutter stator 6 is positioned at the side of bent axle 3 and is installed on the side of tool tip 1, and the top boss 16 of centering block 12 is embedded in the chute 17 of cutting blade 5.Be provided with oil sealing felt 18 at cavity volume 20 sides, set of blades afterbody.Cutter head lid 2 regulates catch 10 by air quantity and bonnet 11 assembles, and air quantity is regulated catch 10 and is provided with corresponding wire casing 19.

Operation principle of the present utility model is: by the driving flexible axle of motor, it is moving that flexible axle makes bent axle 3 drive slide block 11, centering block 12 is around mandrel 13 swings, thereby being moved back and forth, cutting blade 5 reaches the purpose that the end of a thread is cut off, simultaneously, the effect of exhausting motor makes and inhales spool 9 formation negative pressure, and the end of a thread of suction enters in the collecting vessel by flexible pipe.

Claims (3)

1, a kind of wire cutting machine tool bit, comprise tool tip (1), cutter head lid (2), bent axle (3), bearing (4) and set of blades, wherein set of blades comprises cutting blade (5), cutter stator (6) and compressing tablet (7), cutter head lid (2) is installed in the top of tool tip (1) and forms cavity volume (20) between them, the bottom of tool tip (1) is provided with edge pipe (8) respectively and inhales spool (9), the bent axle (3) of cover upper bearing (metal) (4) is installed in the edge pipe (8), bent axle (3) top extend into cavity volume (20) the inside, inhaling spool (9) is communicated with cavity volume (20), it is characterized in that bottom in cavity volume (20), be provided with direction switching mechanism between cutting blade (5) and the bent axle (3), this direction switching mechanism comprises slide block (11), centering block (12) and mandrel (13), slide block (11) is sleeved on the outside, top on the bent axle (3), slide block (11) places tail end groove (15) the inside of centering block (12), centering block (12) middle part is installed on the mandrel (13), cutting blade (5), cutter stator (6) is positioned at a side of bent axle (3) and is installed on the side of tool tip (1), and the top boss (16) of centering block (12) is embedded in the chute (17) of cutting blade (5).

2, a kind of wire cutting machine tool bit according to claim 1 is characterized in that being provided with oil sealing felt (18) at cavity volume (20) side, set of blades afterbody.

3, a kind of wire cutting machine tool bit according to claim 1 and 2 is characterized in that cutter head lid (2) is regulated catch (10) by air quantity and bonnet (11) assembles, and air quantity is regulated catch (10) and is provided with wire casing (19).