CN212193808U - Grinding tool and plastic pulverizer using same - Google Patents

Abstract

The utility model provides a grinding cutter, it includes a fixed cutter group and a rotatory cutter group, fixed cutter group has a fixed cutter seat and a fixed blade disc, fixed cutter seat has a first feed inlet with eccentric mode setting, fixed blade disc is located fixed cutter seat and is just had a second feed inlet with eccentric mode setting towards a side of rotatory cutter group, first feed inlet communicates with each other for the coaxial with the second feed inlet, rotatory cutter group has a rotatory cutter seat and a rotatory blade disc, rotatory blade disc is located rotatory cutter seat and is kept certain interval towards a side of fixed blade disc and between the fixed blade disc. Therefore, the utility model discloses a grinding tool can effectively solve long-pending material problem to promote crocus efficiency. Furthermore, the utility model also provides an use aforementioned grinding tool's plastics milling machine.

Description

Grinding tool and plastic pulverizer using same

Technical Field

The present invention relates to a tool for grinding plastic, and more particularly to a grinding tool and a plastic powder grinder using the same.

Background

In addition to being used as original models of artificial fish reefs, amusement facilities, agricultural and horticultural facilities and the like, the present method for processing waste tires can also be used for crushing waste tires by using a crusher and separating the crushed products (such as waste rubber, steel wires and nylon fibers), wherein the waste rubber can be ground into powder by using a grinding mill after being crushed to prepare various rubber remade products, such as rubber asphalt, floor tiles, grass planting bricks or car stopping piers and the like.

Taiwan publication No. 529458 discloses a method for manufacturing a polishing pad, which comprises assembling one of the polishing pads on a rotating shaft and rotating with the rotating shaft, and guiding rubber particles to hollow holes of two polishing pads by a spiral guide rod, wherein the rubber particles move to inclined grooves of the two polishing pads under the action of centrifugal force generated by the rotation of one of the polishing pads, and are rapidly ground by a grinding particle layer during the movement to form powder. However, in the aforesaid patent, since the hollow hole is located at the center of the grinding plate, a part of the rubber particles still stays between the two hollow holes under the centrifugal force of the grinding plate and does not move to the inclined concave channel, which has a significant effect on the grinding efficiency after a certain time of accumulation.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide a grinding tool, which can solve the problem of material accumulation to improve the grinding efficiency.

In order to achieve the above objective, the grinding tool of the present invention comprises a fixed cutter set and a rotary cutter set. The fixed cutter disc set is provided with a fixed cutter disc seat and a fixed cutter disc, the fixed cutter disc seat is provided with a first feed port penetrating through two opposite side surfaces, the first feed port is eccentric to the center of the fixed cutter disc seat, the fixed cutter disc is arranged on one side surface of the fixed cutter disc seat and is provided with a second feed port penetrating through two opposite side surfaces, and the second feed port is eccentric to the center of the fixed cutter disc and is coaxially communicated with the first feed port of the fixed cutter disc seat; the rotary cutter disc set is provided with a rotary cutter disc seat and a rotary cutter disc, and the rotary cutter disc is arranged on one side surface, facing the fixed cutter disc, of the rotary cutter disc seat and keeps a preset interval with the fixed cutter disc.

According to the above, the utility model discloses a grinding tool sets up this first feed inlet and this second feed inlet with eccentric mode, when making plastics reachd the clearance between this fixed blade disc and this rotatory blade disc via this first feed inlet and this second feed inlet, can be driven by this rotatory blade holder at once and this fixed blade disc is rotatory relatively together to can not produce long-pending material problem, until being ground to suck after the fine powder again and concentrate, in order to promote crocus efficiency.

Preferably, the fixed cutter head and the rotary cutter head are provided with a plurality of grooves, each groove is internally provided with a blade and a blade pressing piece, the blade pressing pieces are assembled in the grooves by utilizing a plurality of screws, and the grooves are mutually abutted in an inclined plane manner, so that the blade is fixed in the groove by the blade pressing pieces. Therefore, if one or more blades are damaged, the blades can be replaced quickly.

Preferably, the fixed cutter head seat further has a plurality of screw holes, the grinding cutter further has a supporting plate, a plurality of supporting screws, a plurality of adjusting screw tubes and a plurality of screw caps, the supporting plate is disposed on a side of the fixed cutter head seat facing away from the fixed cutter head and has a plurality of through holes, each supporting screw penetrates through one through hole of the supporting plate and is screwed into one screw hole of the fixed cutter head seat, each adjusting screw tube is sleeved on one supporting screw and penetrates through one through hole of the supporting plate and one end of each adjusting screw tube abuts against a side of the fixed cutter head seat facing away from the fixed cutter head, and each screw cap is screwed into one adjusting screw tube and abuts against a side of the supporting plate facing away from the fixed cutter head seat. Therefore, after the screw cap abutting against the supporting plate is unscrewed, the fixed cutter head seat can be pushed through one or more adjusting screw pipes so as to adjust the inclination angle of the fixed cutter head seat relative to the rotary cutter head seat and keep the opposite side surface of the fixed cutter head seat and the rotary cutter head seat horizontal.

Preferably, the grinding tool further comprises two worm gears engaged with each other, wherein one worm gear is coaxially sleeved on one shaft portion of the rotary cutter head seat. Therefore, the rotary cutter disc set can move back and forth relative to the fixed cutter disc set through the transmission of the two worm gears, so as to achieve the effect of adjusting the gap.

Preferably, a side surface of the fixed cutter disc, which faces away from the fixed cutter disc seat, is provided with a groove communicated with the second feed port, and the plastic treatment capacity can be increased through the groove.

Preferably, the fixed cutter head seat has a first water inlet and a first water outlet, the first water inlet and the first water outlet are located on two opposite sides of the first feed port, and a first cooling water tank communicating the first water inlet and the first water outlet is arranged between the fixed cutter head seat and the fixed cutter head. In addition, this rotary cutter head seat has a plurality of second apopores and a second inlet opening, and this second inlet opening is located this rotary cutter head seat's center and is surrounded by this a plurality of second apopores, has a second cooling trough that communicates this second apopore and this second inlet opening between this rotary cutter head seat and this rotary cutter head. Therefore, by utilizing the cooling water filled in the first cooling water tank and the second cooling water tank, the powder formed after the plastic is ground can not be adhered due to the high temperature of the fixed cutter head or the rotary cutter head.

Another object of the present invention is to provide a plastic powder grinding machine using the above-mentioned grinding tool, which includes a feeding unit and a rotary driving source. The feeding unit is provided with a motor and a feeding lead screw, one end of the feeding lead screw is connected with the motor, and the other end of the feeding lead screw penetrates through a first feeding hole of the fixed cutter head seat and a second feeding hole of the fixed cutter head, so that when the feeding lead screw is driven by the motor, plastic is guided between the fixed cutter head and the rotary cutter head through the first feeding hole and the second feeding hole; the rotary driving source is connected with the rotary cutter head seat and is used for driving the rotary cutter head group to rotate relative to the fixed cutter head group.

The detailed structure, characteristics, assembly or use of the grinding tool and the plastic pulverizer using the same according to the present invention will be described in the following detailed description of the embodiments. However, it should be understood by those skilled in the art that the detailed description and specific examples, while indicating the specific embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.

Drawings

Fig. 1 is a perspective view of the plastic flour mill of the present invention.

Fig. 2 is another perspective view of the plastic flour mill of the present invention.

Fig. 3 is a sectional view of the plastic powder mill of the present invention.

Fig. 4 is a plan view of the fixed cutter head provided by the grinding cutter of the present invention.

Fig. 5 is a partial cross-sectional view of the milling cutter of the present invention, which mainly shows a state that the fixed cutter head is supported by one end of the adjusting screw.

Fig. 6 is a plan view of the fixed cutter head provided by the grinding tool of the present invention, mainly showing the arrangement of the blades in a rotationally symmetric manner.

Fig. 7 is similar to fig. 6 and shows primarily the stationary cutter head with flutes.

Fig. 8 is a plan view of the rotary cutter head provided by the grinding tool of the present invention, showing the position of the water inlet and the water outlet.

Fig. 9 is a plan view of a rotary cutter head provided with the abrasive tool of the present invention, showing primarily the blades arranged in a radial pattern.

Fig. 10 is a partial exploded perspective view of the abrasive tool of the present invention, showing the structural relationship between the grooves, the blades and the blade fasteners.

Fig. 11 is a partial cross-sectional view of the abrasive tool of the present invention, showing primarily the structural relationship between the grooves, blades and blade fasteners.

Description of the reference numerals

10 plastic flour mill 20 machine

21 upper seat body 22 support plate

23 perforation 24 lower seat body

30 feed unit 31 motor

32 feed lead screw 33 feed hopper

40 grinding tool 41 fixed cutter disc group

42 fixed cutter head seat 43 first feed inlet

44 screw hole 45 supporting screw

46 first water inlet hole 47 first water outlet hole

48 fixed cutter head 49 second feed inlet

50 groove 51 first cooling water tank

52 rotating cutter disc set 53 rotating cutter disc seat

54 shaft 55 bearing

56 fixing screw 57 second water outlet

58 second water inlet hole 59 rotary cutter head

60 second cooling water tank 61 groove

62 bottom 63 first incline

64 first plane 65 screw hole

66 blade 70 blade urging member

71 second inclined plane 72 second plane

73 counter-sunk 74 locking screw

80 rotary drive source 81 motor

82 drive shaft 83 belt pulley

84 drive belt 85 joint

86 water pipe 90 adjusting screw pipe

91 nut 92, 93 worm wheel

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings.

Referring to fig. 1 to 3, a plastic pulverizer 10 of the present invention includes a machine table 20, a feeding unit 30, a grinding tool 40, and a rotary driving source 80.

The machine 20 has an upper seat 21 and a lower seat 24, wherein the upper seat 21 has a supporting plate 22, and the supporting plate 22 has a plurality of through holes 23 arranged in a ring-shaped arrangement.

The feed unit 30 has a motor 31, a feed lead screw 32 and a feed hopper 33. As shown in fig. 3, the feeding lead screw 32 is connected to the lower portion of the hopper 33, the front end of the feeding lead screw 32 is inserted into the supporting plate 22 of the upper base 21 of the machine 20, and the rear end of the feeding lead screw 32 is connected to the motor 31, so that the feeding lead screw 32 can convey the plastic material poured from the hopper 33 forward when driven by the motor 31.

The grinding tool 40 has a fixed blade disc set 41, a rotating blade disc set 52, a plurality of blades 66, and a plurality of blade urging members 70, wherein:

the fixed cutter disc group 41 has a fixed cutter disc seat 42 and a fixed cutter disc 48, as shown in fig. 4 and 6, the fixed cutter disc seat 42 and the fixed cutter disc 48 are both circular, the fixed cutter disc seat 42 has a first feed port 43 penetrating through the inner and outer side surfaces, the first feed port 43 is eccentric to the center of the fixed cutter disc seat 42, the outer side surface of the fixed cutter disc seat 42 has a plurality of screw holes 44 (as shown in fig. 5) arranged in a ring-shaped manner, and a plurality of support screws 45 penetrate through the plurality of through holes 23 of the support plate 22 and are screwed in the plurality of screw holes 44 of the fixed cutter disc seat 42, so that the fixed cutter disc seat 42 is assembled with the support plate 22; the fixed cutter head 48 is fixedly arranged on the inner side surface of the fixed cutter head seat 42 and is provided with a second feeding hole 49 penetrating through the inner side surface and the outer side surface, the second feeding hole 49 is eccentric to the center of the fixed cutter head 48 (as shown in fig. 6), the second feeding hole 49 of the fixed cutter head 48 is coaxially communicated with the first feeding hole 43 of the fixed cutter head seat 42 and is penetrated by the front end of the feeding lead screw 32 (as shown in fig. 3) so as to receive the plastic conveyed by the feeding lead screw 32.

The rotary cutter head set 52 has a rotary cutter head seat 53 and a rotary cutter head 59, as shown in fig. 8 and 9, the rotary cutter head seat 53 has a shaft portion 54, the shaft portion 54 of the rotary cutter head seat 53 is inserted into the upper seat body 21 of the machine 20 and supported by two bearings 55, and then fixed by a fixing screw 56 (as shown in fig. 3); the rotary cutter head 59 is arranged on one side surface of the rotary cutter head seat 53 facing the fixed cutter head 48 and keeps a certain spacing distance with the fixed cutter head 48.

Each blade 66 is detachably disposed on one side surface of the fixed cutter disc 48 facing the rotary cutter disc 59 and one side surface of the rotary cutter disc 59 facing the fixed cutter disc 48 and is fixed by a blade pressing member 70, and each blade 66 can be arranged in a radial (as shown in fig. 9) or rotational symmetric (as shown in fig. 7) manner after being assembled. As shown in fig. 10 and 11, each of the fixed cutter disk 48 and the rotary cutter disk 59 has a plurality of elongated grooves 61, each groove 61 has a bottom surface 62, a first inclined surface 63 and a first plane 64 on the groove wall, the bottom surface 62 has a plurality of screw holes 65 arranged at equal intervals, the first inclined surface 63 and the first plane 64 are connected with two opposite long sides of the bottom surface 62, each of the blades 66 and each of the blade pressing members 70 are elongated and are arranged in the grooves 61 in a one-to-one manner, the blade pressing member 70 has a second inclined surface 71 and a second plane 72, the second inclined surface 71 of the blade pressing member 70 abuts against the first inclined surface 63 of the groove 61, one side surface of the blade 66 abuts against the first plane 64 of the groove 61, the other opposite side surface of the blade 66 abuts against the second plane 72 of the blade pressing member 70, in addition, each of the blade pressing members 70 has a plurality of counter-sunk holes 73 arranged at equal intervals, the plurality of locking screws 74 are inserted into the plurality of counter bores 73 of the blade pressing member 70 and locked in the screw holes 65 of the bottom surface 62 of the groove 61, so that the blade pressing member 70 is engaged with the inclined surfaces between the grooves 61 to fix the blade 66 in the groove 61, and once the blade 66 is damaged, the damaged blade 66 can be removed and replaced by removing the locking screws 74.

The rotary drive source 80 has a motor 81, two pulleys 83, and two drive belts 84. The motor 81 is disposed in the lower base 24 of the machine 20 and has a driving shaft 82, one belt pulley 83 is coaxially connected to the shaft 54 of the rotary cutter seat 53, the other belt pulley 83 is coaxially connected to the driving shaft 82 of the motor 81, and two driving belts 84 are simultaneously wound around the two belt pulleys 83. Thereby, when the pulley 83 is driven by the motor 81, the rotary cutter disc set 52 can be driven to rotate relative to the fixed cutter disc set 41.

Therefore, the utility model discloses a grinding tool 40 sets up first feed inlet 43 and second feed inlet 49 with eccentric mode, when making plastics arrive the clearance between fixed blade disc 48 and the rotatory blade disc 59 via first feed inlet 43 and second feed inlet 49, can be driven by rotatory blade disc 59 at once and relatively fixed blade disc 48 is rotatory together to can not produce long-pending material problem, until being concentrated by pumping again after this a little blade 66 grinds into fine powder, with promotion crocus efficiency. However, as shown in fig. 7, a groove 50 communicating with the second feed opening 49 may be further formed on a side of the fixed cutter disk 48 opposite to the fixed cutter disk seat 42, and the plastic throughput is increased by the groove 50.

Referring to fig. 4, the fixed cutter head seat 42 has a first water inlet 46 and a first water outlet 47, the first water inlet 46 and the first water outlet 47 are located at the same height as the first feed port 43 and are located at two opposite sides of the first feed port 43, and a first cooling water tank 51 (as shown in fig. 3) communicating the first water inlet 46 and the first water outlet 47 is provided between the fixed cutter head seat 42 and the fixed cutter head 48, so that the first water inlet 46 and the first water outlet 47 are respectively connected with a water pipe (not shown), so that cooling water enters the first cooling water tank 51 from one of the water pipes through the first water inlet 46, and is discharged from the first water outlet 47 through the other water pipe after heat exchange in the first cooling water tank 51. As shown in fig. 8, the shaft 54 of the rotary cutter head seat 53 has five second outlet holes 57 and one second inlet hole 58, the second inlet hole 58 is located at the center of the rotary cutter head seat 53 and surrounded by the five second outlet holes 57, a second cooling water tank 60 (as shown in fig. 3) is provided between the rotary cutter head seat 53 and the rotary cutter head 59 for communicating all the second outlet holes 57 and the second inlet holes 58, so that the second outlet holes 57 and the second inlet holes 58 are connected to a joint 85, the joint 85 is connected to two water pipes 86, so that the cooling water enters the joint 85 from one of the water pipes 86, and then enters the second cooling water tank 60 from the joint 85 through the second inlet hole 58, and then discharged to the joint 85 through the five second outlet holes 57 after heat exchange in the second cooling water tank 60, and then discharged from the joint 85 through another water pipe 86. By using the cooling water filled in the first cooling water tank 51 and the second cooling water tank 60, the powder formed by grinding the plastic will not be sticky due to the high temperature of the fixed cutter head 48 or the rotary cutter head 59.

On the other hand, as shown in fig. 5, the present invention further provides a plurality of adjusting screw tubes 90 and two nuts 91, wherein the adjusting screw tubes 90 are sleeved on the supporting screws 45 in a one-to-one manner and penetrate through the through holes 23 of the supporting plate 22, and one end of each adjusting screw tube 90 abuts against a side surface of the fixed cutter head seat 42 facing the supporting plate 22, the nuts 91 are screwed on the adjusting screw tubes 90 in pairs, and one of the nuts 91 abuts against a side surface of the supporting plate 22 facing away from the fixed cutter head seat 42. Therefore, after the nut 91 abutting against the supporting plate 22 is unscrewed, the fixed cutter head seat 42 can be pushed through one or more adjusting screw pipes 90 to adjust the inclination angle of the fixed cutter head seat 42 relative to the rotary cutter head seat 53, so that the grinding surfaces of the fixed cutter head seat 42 and the rotary cutter head seat 53 opposite to each other are kept horizontal, the grinding of plastics is facilitated, and after the adjustment is finished, the unscrewed nut 91 is screwed until the loosened nut abuts against the supporting plate 22.

As shown in fig. 3, the present invention further provides two spiral worm gears 92, 93 engaged with each other, wherein one worm gear 92 is coaxially sleeved on the shaft portion 54 of the rotary cutter head base 53, and the rotary cutter head set 52 can move back and forth relative to the fixed cutter head set 41 through the transmission of the two worm gears 92, 93, so as to achieve the effect of adjusting the gap.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (9)

1. An abrasive tool, comprising:

the fixed cutter disc set is provided with a fixed cutter disc seat and a fixed cutter disc, the fixed cutter disc seat is provided with a first feed port penetrating through two opposite side surfaces, the first feed port is eccentric to the center of the fixed cutter disc seat, the fixed cutter disc is arranged on one side surface of the fixed cutter disc seat and is provided with a second feed port penetrating through two opposite side surfaces, and the second feed port is eccentric to the center of the fixed cutter disc and is coaxially communicated with the first feed port of the fixed cutter disc seat; and

and the rotary cutter disc set is provided with a rotary cutter disc seat and a rotary cutter disc, and the rotary cutter disc is arranged on one side surface of the rotary cutter disc seat facing the fixed cutter disc and keeps a preset interval with the fixed cutter disc.

2. The abrasive tool of claim 1 further comprising a plurality of blades removably attached to a side of the stationary cutter head facing the rotating cutter head and a side of the rotating cutter head facing the stationary cutter head.

3. The abrasive tool of claim 2 wherein said stationary cutter head and said rotating cutter head each have a plurality of flutes, each of the flutes having a bottom surface, a first beveled surface and a first flat surface, said bottom surface having a plurality of threaded holes, said first beveled surface and said first flat surface connecting opposite sides of said bottom surface, each of said blades being disposed in one of said flutes and abutting against a first flat surface of one of said flutes; the grinding cutter further comprises a plurality of blade pressing pieces and a plurality of locking screws, each blade pressing piece is arranged in one groove and provided with a second inclined surface and a second plane, the second inclined surface abuts against the first inclined surface of one groove, the second plane abuts against one blade, each blade pressing piece is further provided with a plurality of countersunk holes, and each locking screw penetrates through one countersunk hole and is locked in one screw hole.

4. The abrasive tool according to claim 1, further comprising a supporting plate, a plurality of supporting screws, a plurality of adjusting screw tubes, and a plurality of nuts, wherein the supporting plate is disposed on a side of the fixed cutter head seat facing away from the fixed cutter head and has a plurality of through holes, each supporting screw penetrates through one through hole of the supporting plate and is screwed into a screw hole of the fixed cutter head seat, each adjusting screw tube is sleeved on one supporting screw and penetrates through one through hole of the supporting plate and one end of each adjusting screw tube abuts against a side of the fixed cutter head seat facing the supporting plate, the plurality of nuts are screwed into one adjusting screw tube in pairs, and one of each pair of nuts abuts against a side of the supporting plate facing away from the fixed cutter head seat.

5. The abrasive tool of claim 1, wherein the fixed cutter head has a first water inlet and a first water outlet, the first water inlet and the first water outlet are located on opposite sides of the first feed opening and at the same height as the first feed opening, a first cooling water tank is disposed between the fixed cutter head and the fixed cutter head, and the first cooling water tank communicates the first water inlet and the first water outlet.

6. The abrasive tool according to claim 1, wherein the rotary cutter head seat has a plurality of second outlet holes and a second inlet hole, the second inlet hole being surrounded by the plurality of second outlet holes, and a second cooling water tank is provided between the rotary cutter head seat and the rotary cutter head, the second cooling water tank communicating the plurality of second outlet holes and the second inlet hole.

7. The abrasive tool of claim 1, further comprising two worm gears engaging with each other, wherein one of the worm gears is coaxially sleeved on a shaft portion of the rotary cutter head holder.

8. The abrasive tool of claim 1, wherein a side of the stationary cutter head facing away from the stationary cutter head seat has a groove communicating with an end of the second feed opening.

9. A plastic mill, comprising:

a grinding tool according to any one of claims 1 to 8;

the feeding unit is provided with a motor and a feeding guide screw, one end of the feeding guide screw is connected with the motor, and the other end of the feeding guide screw penetrates through a first feeding hole of the fixed cutter head seat and a second feeding hole of the fixed cutter head; and

and the rotary driving source is connected with the rotary cutter head seat and is used for driving the rotary cutter head group to rotate relative to the fixed cutter head group.

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