CN203591854U - Claw type cutting tool, and shredder and assembly adopting same - Google Patents

Abstract

The utility model discloses a claw type cutting tool. In the cutting tool, each tool rest comprises a fixing part and a cutting supporting part, wherein one end of the cutting supporting part is connected with one end of the fixing part to form a triangular plane. Each cutting tool body comprises a first cutting part and a second cutting part, wherein the first cutting part and the second cutting part are arranged on a cutting base in parallel; a cutting gap is arranged between the two cutting parts; at least one cutting part is cone-shaped and is provided with an arc-shaped rake face sunken inwardly. According to the claw type cutting tool provided by the utility model, all the power is used for shredding of materials (such as plastic membranes), multiple deficiencies such as large electric power consumption, frequent replacing of cutting tools, high material blockage failure rate and high usage cost caused by enlarging of gaps between moving cutters and fixed cutters, or incomplete cutting of the materials due to abrasion of cutting corners in the prior art are overcame; when the claw type cutting tool is applied to various shredding equipment or forms assemblies with other equipment, the overall efficiency can be improved prominently.

Description

Pawl formula cutter and there is shredder and the combination unit of pawl formula cutter

Technical field

The utility model relates to a kind of material and tears up instrument, relate in particular to a kind of pawl formula cutter, for tearing up waste or used plastics goods, as plastic sheeting, and configures the equipment that tears up of this kind of pawl formula cutter.

Background technology

In human being's production life process unwanted or useless solid or liquid material be referred to as rubbish.From different perspectives, contained rubbish material can be carried out to various classification: the recyclable rubbish of organic waste and inorganic refuse, house refuse and industrial refuse and not recyclable rubbish etc.Along with improving constantly of population increase and quality of life, the quantity of house refuse is also in continuous growth.Air storage rubbish is is not only occupied a large amount of soils, is produced a large amount of pernicious gases, also causes the severe contamination of atmospheric environment, and the pollution of periphery water body.

Garbage loading embeading and burning are the main processing modes of current house refuse, because the organic matter of about 50% left and right in rubbish exists, make landfill disposal can produce a large amount of greenhouse gases, percolate and foul gas, and environment is caused to harmful effect.Burning disposal is because existing combustible calorific value too low, and gas cleaning expense is too high, and burning facility fluctuation of service etc. is inevitably brought the problem such as environmental pollution and the wasting of resources; And comprehensive garbage disposal is not mature enough because of organic matter fermentation technology, fermentation time is long, and its application is subject to certain restrictions.

The house refuse that people's daily life produces generally can be divided into four large classes: recyclable rubbish, rubbish from cooking, Harmful Waste and Other Waste.Wherein, callable rubbish mainly comprises again the five large classes such as waste paper, plastics, glass, metal and cloth.In order to reduce occupation of land, to reduce environmental pollution and turning waste into wealth, to realize trash processing way and fill up and burning mode is changed to resource regeneration mode from traditional, categorized consumer waste is the prerequisite of domestic garbage resource.

Due to being widely used of plastic products, and pollution on the environment and destruction, its recycling is paid attention to day by day.The steps such as the plastic products that reclaim generally need to enter to remove sand, fragmentation, cleaning, dehydration and granulation could be utilized again.Under normal circumstances, in the links that uses and reclaim of plastic products, can make the waste or used plastics surface of reclaiming have adhesion or wrap up some silt materials.For the consideration of recycling economy, can be by further granulation, so that it obtains repeating recycling after technics of reclaim of plastic waste.For ease of the carrying out of granulating working procedure, general all will first carry out break process to the waste or used plastics of retrieving, to realize the object that subtracts appearance, afterwards or more successively through clean and dry after, be used to granulation.

In plastics recovery regeneration industry, it mainly adopts the shredder will be such as: the materials such as PE plastic pipe, plastic sheeting, plastic sheet and plastics bait are shredded into compared with fractionlet so that cycling and reutilization.The mode of tearing up of shredder mainly contains: 1) shearing, adopt twin shaft (or four axles) cutter, to shred material; 2) Rolling cutting type, is about to be provided with the rotatable roll shaft of multiple blades, forms and tears up material to cutting with the blade that is fixed on cavity inner wall; 3) three kinds of tearing types etc.

Chinese utility model patent ZL02268347.X discloses a kind of plastic breaker, on body inwall, is fixed with stationary knife, has moving knife in rotating shaft, under rotating shaft, has screen cloth, and the oblique upper of rotating shaft has broken blade row, under broken blade row, has striker plate.

Chinese utility model patent ZL200820202669.9 discloses a kind of plastic shredding machine, comprise frame, motor, reduction box, arbor wheel, blade, hopper, cut somebody's hair, oil cylinder, hydraulic means and electric control gear, wherein hydraulic means is connected with oil cylinder, motor is connected with reduction box by driving-belt, work arbor wheel with rotating blade is set in frame, stationary knife seat is installed in arbor wheel machine frame at two sides, on stationary knife seat, ledger-plate is installed.When work, cut somebody's hair, under piston rod effect, material to be broken is pushed into work arbor wheel, make the rotating blade on arbor wheel in rotary course, constantly cut, tear up material.This technology can be broken into waste or used plastics granularity 40-80mm block.

Chinese invention patent application 200910154703.9 discloses a kind of crushing mechanism of plastic breaker, comprise by power transmission shaft, stationary knife and movable cutter set and forming, described movable cutter set comprises some push type broach and dise knife composition, described push type broach is installed on power transmission shaft by concentric axis hole with dise knife, and movable cutter set both sides arrange respectively one group of stationary knife; Described movable cutter set comprises by three push type broach and four dise knifes and forming, described push type broach is that tri-lobed helical structure and each push type broach are provided with three R shape push type broach edges of a knife, and some blade overall alignment of described dise knife are that spiral V character form structure and each dise knife are provided with some R shape dise knife edges of a knife; Described stationary knife inboard is provided with the stationary knife edge of a knife matching with moving knife part.This crushing mechanism forms by organizing cutter more, and maintenance and replacing exist certain difficulty.

Chinese invention patent application 201010255155.1 discloses a kind of plastic breaker, comprises crush box, dead knife, combination cutter and is fixed with the main shaft that combines cutter.Crush box is semicircle cylindricality casing, in the both ends of the surface of casing, has dead eye, and the two ends that are fixed with the main shaft of combination cutter have respectively the bearing being placed in dead eye, and described lower box is provided with affixed semicircular sieve plate.This disintegrating machine adopts two kinds of cutters, and cutter hub cannot separate with blade, need change simultaneously, causes certain difficulty to machine maintenance and part replacement.

Chinese invention patent application 200910262112.3 discloses the multifunctional shearing mechanism in a kind of plastic block crusher, comprise movable blade fixed framework and stationary knife fixed mount, on movable blade fixed framework and stationary knife fixed mount, be fixedly installed respectively moving knife and stationary knife, in moving knife and movable blade fixed framework, be respectively arranged with some mounting holes that cooperatively interact, moving knife is arranged in movable blade fixed framework by the moving knife set bolt cooperatively interacting with mounting hole, be respectively arranged with some mounting holes that cooperatively interact at stationary knife and stationary knife fixed mount, stationary knife is arranged on stationary knife fixed mount by the stationary knife set bolt cooperatively interacting with mounting hole.This device has solved blade and should use and need the problem of changing, but the not fine solution of its discharging and charging, and the work continuity of device is not high.

Gap between desirable moving knife and stationary knife is 0.2～0.4mm, requires cutting angle necessary sharp-pointed.All kinds of broken disintegrating apparatus (as shown in Figure 1 with shown in Fig. 2) of understanding at present, moving knife 1 and stationary knife 2 mostly adopt flat cutter, and the contact area of blade and material is large, and the resistance of cutter is large, and the degree of wear is high.Through several workaday uses, the gap 3 between moving knife and stationary knife can exceed 0.4mm, even reaches 2mm; And cutting angle 4 has become circular arc (as shown in Figure 3) bar none.The thickness of duroplasts is 0.1～3mm, the thickness 0.04～1mm of plastic sheeting.Obviously, the gap of cutter can not guarantee the needs of cutting gap, and processed plastics are sandwiched in the gap of moving knife and stationary knife conventionally, causes process neither cutting entirely, neither entirely tear up, but mixed types such as " cut, tear up, pull, push and rub ".

The increase in the gap between moving knife and stationary knife, also makes to sneak into the material among the gap of moving knife and stationary knife, produces huge expansive force and frictional force, and putty phenomenon occurs.In order to address this problem, comparatively simple scheme is to increase motor power, with overcome friction.Although drop into very large power, effect can not be satisfactory.As: the Nagano shredder of Korea S, power is 110kw, average productive capacity is no more than 400kg/h; And for example: the JAC shredder that TaiWan, China is manufactured, use 300kw motor, average productive capacity is 800kg/h; Dust Wien shredder, uses 110kw motor, and average productive capacity is 500～600kg/h.But these equipment still need frequently more allowing blade replacement, putty phenomenon also fails to solve.

Existing these technology and product, many defects such as still large, the cutter changing of ubiquity power consumption is frequent, putty fault rate is high and use cost is high.

Utility model content

An object of the present utility model is to provide a kind of pawl formula cutter, to reduce the loss of moving knife cutter, improve material tear up efficient, reduce the replacing frequency of cutter.

Another object of the present utility model is to provide a kind of shredder, adopts pawl formula cutter to tear up material.By pawl formula cutter is matched with cleaning cutter, improve the disposal ability of equipment, reduce energy consumption, less equipment failure rate.

Another object of the present utility model is to provide a kind of shredding equipment, and employing has pawl formula cutter the material of exporting from compression member is torn up.This device integrates mass transport, pushes and tears up, and the shredder and the material compression conveying equipment that the utlity model has pawl formula cutter are used in combination, and realizes material and tears up continuously, enhances productivity.

A kind of pawl formula cutter that the utility model provides, comprises

Knife rest, comprises fixture and cutting support member, and cutting support member one end and fixture one end are connected to form planar delta;

Cutter hub, comprises tool rest and the first cutting portion and the second cutting portion, and the first cutting portion be located at tool rest parallel with the second cutting portion, is provided with cutting gap therebetween.

For making the effect of tearing up that cutter realizes ideal, tool rest is cylindricality, is fixed on the cutting portion other end.The first cutting portion and the second cutting portion are identical or different, and at least one cutting portion is cone, preferentially selects cone, and cone angle is 35 °-45 °.Cutting portion has the arc rake face caving inward, and preferentially selects the arc surface that diameter (φ) is 25mm-35mm.

A kind of shredder that the utility model provides, comprises

Tear up assembly, comprise cutter shaft, be located at some pawl formula cutters of cutter shaft;

Clear material assembly, comprises rotating shaft and some clear material wheels; The clear material of each group wheels comprise the clear material wheel at some edges of being located at same rotating shaft cross section, and each clear material wheel can pass through in the cutting gap place of each pawl formula cutter;

Driven unit, comprises drive motors, decelerator and differential mechanism, and drive motors is connected with decelerator, and differential mechanism is connected in decelerator.

24 clear material teeth are evenly set around the edge of clear material wheel, and the tooth mouth degree of depth is 20mm, to significantly improve the clear material effect to tearing up assembly, prevents that material is hung on pawl formula cutter.

Under the control of driven unit, cleaning assembly with tear up assembly by the rotational speed of 3: 1.

Combination unit is torn up in the one compression that the utility model provides, and comprises

Tear up assembly, comprise cutter shaft, be located at the some above-mentioned various pawl formula cutters of cutter shaft;

Material compression conveyer, comprises 1 above screw shaft, discharging opening and power part, and power part is connected with screw shaft one end, and discharging opening is just to being provided with the assembly that tears up of pawl formula cutter; And

Clear material assembly, comprises rotating shaft and some clear material wheels; The described clear material wheels of each group comprise the clear material wheel at some edges of being located at same rotating shaft cross section, and each clear material wheel can pass through in cutting gap place.

The beneficial effect that technical solutions of the utility model realize:

The pawl formula cutter that the utility model provides, realize whole motive use in tear up (as: plastic sheeting) of material, overcome prior art because the gap between moving knife and stationary knife is extended, or cutting angle wearing and tearing cause to realize material are carried out to full cutting, and consequent many deficiencies, as: many deficiencies such as power consumption is large, cutter changing is frequent, putty fault rate is high and use cost is high.

The pawl formula application of cutting tool that the utility model is provided tears up equipment (as: shredder) or forms combination unit with miscellaneous equipment (as: double helix RDF forming machine) in various, and its energy consumption is only 0.2～0.5 times of existing same category of device; The comparable same category of device of material treating capacity improves 2～10 times and (as: adopts the power of 80kw, can produce 72M ³plastic sheeting, power is 1t/4.5kw with the ratio of output); Cutter changing frequency is minimized, and life cycle is 3～10 times of same category of device; The fault rate of equipment declines greatly, and putty incidence reduces to 1/10, has significantly improved overall efficiency.

Accompanying drawing explanation

Fig. 1 is the structural representation of cutter for same in existing all kinds of broken disintegrating apparatus;

Fig. 2 is the structural representation of another angle of Fig. 1;

Fig. 3 is the structural representation of cutter shown in Fig. 1 after using;

Fig. 4 is the structural representation of the utility model pawl formula cutter one embodiment;

Fig. 5 is another angle structural representation of the cutter of pawl formula shown in the utility model Fig. 4;

Fig. 6 is the cutter of pawl formula shown in the utility model Fig. 4 A-A cross-sectional view;

Fig. 7 is the structural representation of the utility model shredder one embodiment;

Fig. 8 is the cross-sectional view of shredder B-B shown in the utility model Fig. 7;

Fig. 9 is the structure for amplifying schematic diagram of the utility model figure shredder clear material wheel used;

Figure 10 is the structural representation that combination unit one embodiment is torn up in the utility model compression.

The specific embodiment

Describe the technical solution of the utility model in detail below in conjunction with accompanying drawing.The utility model embodiment is only unrestricted in order to the technical solution of the utility model to be described, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical scheme of utility model, and not departing from the spirit and scope of technical solutions of the utility model, it all should be encompassed in claim scope of the present utility model.

Fig. 4 is the structural representation of the utility model pawl formula cutter one embodiment, and Fig. 5 is another angle structural representation of the cutter of pawl formula shown in Fig. 4, and Fig. 6 is the cutter of pawl formula shown in the utility model Fig. 4 A-A cross-sectional view.As shown in Figure 4, Figure 5 and Figure 6, pawl formula cutter 100 comprises knife rest 110 and cutter hub 120.Knife rest 110 comprises fixture 111 and cutting support member 112, and cutting support member 112 one end and fixture 111 one end are connected to form planar delta.In the present embodiment, it is identical with the second cutting portion 122 structures that cutter hub 120 has cylindrical tool rest 123, the first cutting portions 121, is 35 ° of-45 ° of cones of cone angle, each cutting portion 121,122 has the circular arc rake face 125 that a diameter caving inward (φ) is 25mm-35mm.The first cutting portion 121 be located at tool rest 123 parallel with the second cutting portion 122, is provided with cutting gap 124 therebetween.

Pawl formula cutter 100 is laid in to cutter shaft 210 to be formed and tears up assembly 200.The difference of tearing up according to material requires (as: particle diameter), can adopt various ways to lay pawl formula cutter 100.The present embodiment Fig. 7 and Fig. 8 provide a kind of specific embodiment of laying, as shown in the figure, some pawl formula cutters 100 are arranged to form set of knives 220 along cutter shaft cross section (radially) edge, then along some groups of set of knives of axial laying 220 of cutter shaft.When laying, also can be along edge, cutter shaft cross section, by pawl formula cutter 100 front and back of each set of knives 220 certain angle (as: 45 °) that staggers, to form screw-like cutting array in the axial direction of cutter shaft, to realize fully tearing up material.

Clear material wheel 321 can pass through in cutting gap 124 places of each pawl formula cutter 100, so that cutter is realized to clear material (referring to Fig. 7 and Fig. 8).Around the edge of clear material wheel 321 evenly arrange 24 clear material tooth 322( wheel along on, a clear material tooth is set every 15 °, be connected successively), realized the clear material effect significantly improving tearing up assembly on the one hand, prevent that material is hung on pawl formula cutter (referring to Fig. 9); On the other hand, owing to only there being the clear material of part tooth to participate in clear material (to contact thread short with cutting gap) in real work, can adopt regularly the working position of expecting clearly wheel is changed, as: rotate 30 ° of angles by equidirectional (clockwise or counterclockwise) at every turn, clear material wheel can rotation 6 times, has reduced the replacement frequency of cutter with this.For avoid expecting that clearly tooth is wound around by material simultaneously, a kind of embodiment of preferential selection, each tooth mouth 323 degree of depth of expecting clearly tooth are identical, are 20mm.

Material assembly 300 also comprises rotating shaft 310 clearly, and some clear material wheels 321 are located at the edge of same rotating shaft cross section, and clear material forms one group and expects clearly wheels 320, and rotating shaft 310 arranges the clear material of many groups wheels 320, coordinates with each group of set of knives 220.By in cutting gap 124, the material being hung on the first cutting portion 121 and the second cutting portion 122 is realized to clear material at each clear material wheel 321.A synchronous clear material mode in the process of tearing up for preferential selection, with cleaning assembly 300 with tear up assembly 200 and rotate backward (referring to Fig. 7, in figure, arrow represents rotation direction) by the rotating speed of 3: 1.

Can use driven unit 400, control respectively cleaning assembly 300 and the rotating speed that tears up assembly 200 in automation mode, realize best tearing up and expect clearly effect.This assembly comprises drive motors 410, decelerator 420 and differential mechanism 430, and drive motors is connected with skin wheel mechanism with decelerator, and differential mechanism is connected in decelerator.In the present embodiment, tear up roll shaft 230 one end and be located at decelerator 430, on it, be also arranged with the first spider gear 431.The second spider gear 432 is located at differential sprocket wheel 433, and is connected with the first spider gear 431 skin wheels, and differential sprocket wheel 433 is sheathed on material roller axle 330 clearly.Thus, under drive at decelerator at drive motors, realize and tear up mechanism by the rotation of specific direction (clockwise or counterclockwise) by the first spider gear 431 and the second spider gear 432, pass through again 433 2 speedups of differential sprocket wheel and break-in, realize the high-efficient cleaning material (referring to Fig. 7 and Fig. 8) that shredder carries out automation in tearing up material.

Figure 10 is the structural representation that combination unit one embodiment is torn up in the utility model compression.As shown in figure 10, material compression conveyer 500 comprises 1 above screw shaft 510, discharging opening 520 and power part 530, and power part is connected with screw shaft one end.Discharging opening 520 just tears up assembly 200 to what be provided with pawl formula cutter.Compacted material, as the "flesh" (nonproductive construction) being placed on chopping block, is torn up by each pawl formula cutter 100 tearing up on assembly cutter shaft 210 of High Rotation Speed.By changing, pawl formula cutter 100 is different to be arranged and rotating speed cooperation, just can obtain the plastic sheeting fragment of different-grain diameter (as: diameter is 50mm, 80mm and 120mm etc.).

The 315kw double helix RDF forming machine of manufacturing take Japan is as reference, because this forming machine is only to extrude by aperture, the power that " throttling " consumes is very large, needs in addition material to be pressed into bulk, the resistance to compression pression of extruding of shredder only has 1/10～1/8 of forming machine, both 31.5kw～40kw.The time of " extruding " process is long, enter double helix and start with regard to consumption of power, and the process of tearing up is ofer short duration, cuts according to a preliminary estimate power and equates with compression power than material.That is to say, even as corollary equipment, adopt the power of 80kw, just can produce 72M ³plastic sheeting (day basis machine parameter).In the time that heap specific density is 0.25, output can reach 18 tons/hour, and power is 1 ton/4.5kw with the ratio of output, has significantly improved overall efficiency.

Claims (8)

1. a pawl formula cutter, is characterized in that comprising

Knife rest, comprises fixture and cutting support member, and described cutting support member one end and described fixture one end are connected to form planar delta;

Cutter hub, comprises tool rest and the first cutting portion and the second cutting portion, and described the first cutting portion is parallel with described the second cutting portion is located at described tool rest, is provided with cutting gap therebetween;

At least one described cutting portion is cone, and has the arc rake face caving inward.

2. pawl formula cutter according to claim 1, is characterized in that described cutting portion is the cone of 35 °-45 ° of cone angles.

3. a shredder, is characterized in that comprising

Tear up assembly, comprise cutter shaft, be located at the pawl formula cutter described in some claims 1 or 2 of described cutter shaft;

Clear material assembly, comprises rotating shaft and some clear material wheels; The described clear material wheels of each group comprise the clear material wheel at some edges of being located at same rotating shaft cross section, and described in each, clear material wheel can pass through in described cutting gap place.

4. shredder according to claim 3, characterized by further comprising driven unit, and it comprises drive motors, decelerator and differential mechanism; Described drive motors is connected with described decelerator, and described differential mechanism is connected in described decelerator.

5. shredder according to claim 3, is characterized in that evenly arranging around the edge of described clear material wheel 24 clear material teeth.

6. shredder according to claim 5, is characterized in that the tooth mouth degree of depth of described clear material tooth is 20mm.

7. a combination unit is torn up in compression, it is characterized in that comprising

Tear up assembly, comprise cutter shaft, be located at the pawl formula cutter described in some claims 1 or 2 of described cutter shaft;

Material compression conveyer, comprises screw shaft, discharging opening and power part, and described power part is connected with described screw shaft one end, and it is just right that described discharging opening and described pawl formula are torn up assembly, and described screw shaft has more than 1.

8. combination unit is torn up in compression according to claim 7, characterized by further comprising and expects clearly assembly, and it comprises rotating shaft and some clear material wheels; The described clear material wheels of each group comprise the clear material wheel at some edges of being located at same rotating shaft cross section, and described in each, clear material wheel can pass through in described cutting gap place.

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