CN208514859U - A kind of injection moulding machine feed back crushing and screening device for plastic casing material - Google Patents

Abstract

The utility model discloses a kind of injection moulding machine feed back crushing and screening devices for plastic casing material, including cylindrical shell, cylindrical shell top is equipped with feed hopper, grinding device is sequentially installed with inside cylindrical shell from top to bottom, screening plant and splicing bucket, it is equipped with coarse fodder on the outside of splicing bucket and returns bucket device, screening plant includes filtering sieve plate, filtering sieve plate is equipped with several coarse fodders and drops out hole, filter screen board bottom end is equipped with motor, motor top is equipped with impeller, rotation is installed on impeller and pushes away leaf, rotation pushes away leaf ceaselessly thick plastic grains of rotation forces under the drive of the motor, it is fallen to sweep thick plastic grains from sieve plate, plastic cement screening efficiency is high, thick plastic grains in annular space are drawn onto feed hopper by the suction tube that coarse fodder returns bucket device using the high wind energy of sucktion fan, to make thick plastic grains continue to crush, filtering, to Automatic cycle charging is completed, waste is avoided, saves manpower and the time of recycle feed, improve screening efficiency.

Description

A kind of injection moulding machine feed back crushing and screening device for plastic casing material

Technical field

The utility model relates to feed back crushing and screening device field, specially a kind of injection moulding machine feed back for plastic casing material Crushing and screening device.

Background technique

Injection Industry in some non-surface covering parts, the especially injection molding of the structural member of interiors of products for allowing to make With a certain proportion of feed back, relatively low occasion is required to even allow for carrying out injection molding life using 100% feed back product appearance It produces.There are many kinds of the sources of feed back, and a part is the defect ware generated in injection molding process, and also having is generated in assembly process Scrap, the scrap especially generated in assembly process is often mingled with screw or other metal materials, therefore adopts Need when injection molding rejecting the metal impurities in broken feed back to avoid metal impurities entrance with feed back Mold is caused to scrap into mold runner.

But existing feed back crushing and screening device has the following deficiencies:

(1) plastic casing after the pulverizing, is screened by sieve plate or filter screen, and small qualified plastic grains enter barrel, Recycling is waited, and big, thick particle entrapment can block the sieve pore of sieve plate on sieve plate, to influence plastic cement after crushing The breakneck acceleration of particle；

(2) after plastic rubber pulverizing, the lesser qualified plastic grains of particle are saved, particle is larger need to pour into again into Hopper is crushed again, but consuming time and labour are more, decline the whole crushing and screening efficiency of plastic casing.

Summary of the invention

In order to overcome the shortcomings of prior art, the utility model provides a kind of injection moulding machine feed back for plastic casing material Crushing and screening device, rotation pushes away leaf ceaselessly thick plastic grains of rotation forces under the drive of the motor, thus by thick plastic grains It sweeps and falls from sieve plate, plastic cement screening efficiency is high, and the suction tube that coarse fodder returns bucket device will be annular using the high wind energy of sucktion fan Thick plastic grains in space are drawn onto feed hopper, to make thick plastic grains continue to crush, filter, so as to complete automatic Recycle feed avoids waste, saves manpower and the time of recycle feed, improves crushing and screening efficiency, can be effective Solve the problems, such as that background technique proposes.

The technical scheme adopted by the utility model to solve the technical problem is as follows:

A kind of injection moulding machine feed back crushing and screening device for plastic casing material, including cylindrical shell, the cylindrical shell top End is equipped with feed hopper, and the cylindrical shell inner tip is equipped with grinding device, and cylindrical shell top center passes through branch Dagger is equipped with splicing bucket, and screening plant is equipped between the splicing bucket and grinding device, is equipped with coarse fodder on the outside of the splicing bucket Return bucket device；

The screening plant includes the filtering sieve plate being fixed in the middle part of cylindrical shell on inner wall, the periphery of the filtering sieve plate Hole is dropped out equipped with several coarse fodders, the center bottom of the filtering sieve plate is equipped with motor by mounting base, and the motor top is logical It crosses motor shaft and impeller is installed across filtering sieve plate, several rotations are installed on the impeller and push away leaf.

Further, it is embedded with several flat thin magnets on the inside of the cylindrical shell, discharging is installed on the cylindrical shell side wall Switch gate.

Further, the inlet area of the discharge port area ratio splicing bucket of the grinding device is small, described to revolve the length for pushing away leaf It spends smaller than the radius of splicing bucket.

Further, it includes the pumping that cylindrical shell top left hand is fixed on by fan seat inclination that the coarse fodder, which returns bucket device, Suction ventilator, the sucktion fan outer sheath are equipped with suction tube, and the upper side of the sucktion fan, which is equipped with, to be fixed on inside suction tube The arc protective net on top, the annular space formed between the suction tube bottom end insertion cylindrical shell inside and splicing bucket outside Interior, the suction tube top is connected with the side wall of feed hopper, and the outlet tip of the suction tube, which is equipped with, to be mounted in feed hopper The anti-board falling of arc on wall.

Compared with prior art, the utility model has the beneficial effects that

(1) rotation of the screening plant of the utility model pushes away the leaf ceaselessly thick plastic cement of rotation forces under the drive of the motor Grain, falls so that thick plastic grains be swept from sieve plate, blocks the mesh of sieve plate by thick plastic grains, qualified plastic cement Grain is easier to fall in splicing bucket from sieve plate under thrust, and plastic cement screening efficiency is high；

(2) coarse fodder of the utility model returns bucket device when starting sucktion fan, and sucktion fan generates from the bottom up Suction, the thick plastic grains in annular space are drawn onto feed hopper by suction tube using the energy of high wind, to make thick modeling Glue particle continues to crush, filtering so as to complete automatic cycle charging avoids waste, save the manpower of recycle feed with Time improves crushing and screening efficiency.

Detailed description of the invention

Fig. 1 is the schematic cross-sectional view of the utility model.

Figure label:

1- cylindrical shell；2- feed hopper；3- grinding device；4- splicing bucket；5- screening plant；6- coarse fodder returns bucket device；7- The anti-board falling of arc；

11- support column；12- flat thin magnet；13- discharging switch gate；

51- filters sieve plate；52- coarse fodder drops out hole；53- motor；54- impeller；55- rotation pushes away leaf；

61- sucktion fan；62- suction tube；63- arc protective net.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

As shown in Figure 1, the utility model provides a kind of injection moulding machine feed back crushing and screening device for plastic casing material, packet Include cylindrical shell 1, cylindrical shell 1 is cylindrical, and inside has a cylindrical space, 1 top of cylindrical shell be equipped with into Hopper 2,1 inner tip of cylindrical shell are equipped with grinding device 3, are embedded with several flat thin magnets 12 on the inside of the cylindrical shell 1, After thick plastic grains enter in the annular space formed on the outside of 1 inside of cylindrical shell and splicing bucket 4, flat thin magnet 12 can be by plastic cement Ferrous particles in particle are sucked, and enter in mold runner so as to avoid metal impurities and mold is caused to scrap.

The 1 top center of cylindrical shell is equipped with splicing bucket 4 by support column 11, between splicing bucket 4 and support column 11 For movable connection, i.e. splicing bucket 4 can be unloaded easily from support column 11, as 4 bottom center of splicing bucket is equipped with and support column The panel plugs groove that 11 shapes match.Discharging switch gate 13 is installed, the design for the switch gate 13 that discharges on 1 side wall of cylindrical shell Facilitate the discharging of the plastic grains filtered out and the maintenance of screening plant 5.

Screening plant 5 is equipped between the splicing bucket 4 and grinding device 3, grinding device 3 utilizes rotary head or pressure hammer Equal devices cut plastic material or press-powder is broken, to achieve the purpose that crushing.

The screening plant 5 includes the filtering sieve plate 51 being fixed on 1 middle part inner wall of cylindrical shell, the filtering sieve plate 51 Periphery be equipped with several coarse fodders and drop out hole 52, coarse fodder drops out hole and is located above annular space, does not pass through the coarse fodder of sieve plate from coarse fodder It drops out hole 52 to drop in annular space, be then transported in feed hopper 2 by coarse fodder time bucket device 6 and then crushes again.

The center bottom of the filtering sieve plate 51 is equipped with motor 53 by mounting base, and 53 top of motor passes through motor Axis passes through filtering sieve plate 51 and is equipped with impeller 54, and several rotations are equipped on the impeller 54 and push away leaf 55.To make thick plastic grains more It falls easily from dropping out hole, the side of filtering sieve plate 51 is in cone surface shape, i.e. the extension at the center of filtering sieve plate 51 to side Its level height gradually decreases on line, and qualified little particle plastic cement is fallen in splicing bucket 4 from sieve plate in this way, and coarse Plastic grains drop out hole 52 from coarse fodder due under the rotary thrust effect that gravity and rotation push away leaf 55 and fall.

Preferably, rotation pushes away the ceaselessly thick plastic grains of rotation forces under the driving of motor 53 of leaf 55, thus by thick Plastic grains are swept from sieve plate and are fallen, and block the mesh of sieve plate by thick plastic grains, qualified plastic grains are in thrust Under be easier to fall in splicing bucket 4 from sieve plate, to ensure that screening plant 5 to the higher breakneck acceleration of plastic grains.

The inlet area of the discharge port area ratio splicing bucket 4 of the grinding device 3 is small, and the length ratio that the rotation pushes away leaf 55 connects The radius of charging basket 4 is small, and when screening in this way, the plastic grains of qualified particle size, which more can be passed through directly from sieve plate, is called in In splicing bucket 4, to improve screening efficiency.

It is equipped with coarse fodder on the outside of the splicing bucket 4 and returns bucket device 6, it includes being tilted by fan seat that the coarse fodder, which returns bucket device 6, It is fixed on the sucktion fan 61 of 1 top left hand of cylindrical shell, 61 outer sheath of sucktion fan is equipped with suction tube 62, the suction The upper side of blower 61 is equipped with the arc protective net 63 for being fixed on 62 inner tip of suction tube, and arc protective net 63 can effectively prevent The contact wear of plastic grains and draught fan impeller, from improve service life of fan and suction strength.

In the annular space formed between 62 bottom end of suction tube insertion cylindrical shell, 1 inside and 4 outside of splicing bucket, inhale One of coarse fodder of the expects pipe 62 from sieve plate drops out hole 52 and passes through, and 4 top of outside, that is, splicing bucket of support column 11 also is provided with ring Shape space, small in the suction of blower, thick plastic grains directly reach suction tube 62 from annular space, are then again introduced into charging Bucket 2.

62 top of suction tube is connected with the side wall of feed hopper 2, and the top of suction tube 62 is arc tube, thick in this way Plastic grains are smaller in the resistance for ascending into feed hopper 2, and the outlet tip of the suction tube 62, which is equipped with, to be mounted in feed hopper 2 The anti-board falling 7 of arc on wall, arc bleed off plastic casing material when plate 7 prevents charging and directly fall into annular sky from suction tube 62 In.

Preferably, start sucktion fan 61, sucktion fan 61 generates suction from the bottom up, and suction tube 62 utilizes high wind Energy the thick plastic grains in annular space are drawn onto feed hopper 2, thus make thick plastic grains continue crush, filtering, So as to complete automatic cycle charging, waste is avoided, manpower and the time of recycle feed is saved, improves crushing and screening Efficiency.

It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting Related claim.

Claims (4)

1. a kind of injection moulding machine feed back crushing and screening device for plastic casing material, including cylindrical shell (1), it is characterised in that: institute It states cylindrical shell (1) top to be equipped with feed hopper (2), cylindrical shell (1) inner tip is equipped with grinding device (3), institute It states cylindrical shell (1) top center to be equipped with splicing bucket (4) by support column (11), the splicing bucket (4) and grinding device (3) Between be equipped with screening plant (5), coarse fodder is equipped on the outside of the splicing bucket (4) and goes back to bucket device (6)；

The screening plant (5) includes the filtering sieve plate (51) being fixed in the middle part of cylindrical shell (1) on inner wall, the filtering sieve plate (51) periphery is equipped with several coarse fodders and drops out hole (52), and the center bottom of filtering sieve plate (51) is equipped with electricity by mounting base Machine (53), motor (53) top pass through filtering sieve plate (51) by motor shaft and are equipped with impeller (54), the impeller (54) On be equipped with it is several rotation push away leaf (55).

2. a kind of injection moulding machine feed back crushing and screening device for plastic casing material according to claim 1, it is characterised in that: Several flat thin magnets (12) are embedded on the inside of the cylindrical shell (1), discharging switch gate is installed on cylindrical shell (1) side wall (13)。

3. a kind of injection moulding machine feed back crushing and screening device for plastic casing material according to claim 1, it is characterised in that: The inlet area of the discharge port area ratio splicing bucket (4) of the grinding device (3) is small, and the length that the rotation pushes away leaf (55) compares splicing The radius of bucket (4) is small.

4. a kind of injection moulding machine feed back crushing and screening device for plastic casing material according to claim 1, it is characterised in that: It includes the sucktion fan (61) that cylindrical shell (1) top left hand is fixed on by fan seat inclination that the coarse fodder, which goes back to bucket device (6), Sucktion fan (61) outer sheath is equipped with suction tube (62), and the upper side of the sucktion fan (61), which is equipped with, is fixed on suction tube (62) the arc protective net (63) of inner tip, suction tube (62) bottom end are inserted on the inside of cylindrical shell (1) and splicing bucket (4) In the annular space formed between outside, suction tube (62) top is connected with the side wall of feed hopper (2), the suction tube (62) outlet tip is equipped with the anti-board falling of arc (7) being mounted on feed hopper (2) inner wall.