CN218019536U

CN218019536U - Plastic grain cutting machine with cooling structure

Info

Publication number: CN218019536U
Application number: CN202221992323.XU
Authority: CN
Inventors: 徐亚华; 徐国栋
Original assignee: Yancheng Shenghua Plastic Technology Co ltd
Current assignee: Yancheng Shenghua Plastic Technology Co ltd
Priority date: 2022-08-01
Filing date: 2022-08-01
Publication date: 2022-12-13
Anticipated expiration: 2032-08-01

Abstract

The utility model discloses a plastic granulator with cooling structure, including the pelleter main part, set up the plastic strip in the pelleter main part and cut a grain cavity, be equipped with the plastic strip feed inlet on the plastic strip cuts a grain cavity, the plastic strip cuts a grain cavity internal rotation and sets up the pivot, and pivot one end surpasss the plastic strip and cuts a grain cavity setting and this surpasss the end and links to each other through the output shaft of shaft coupling and gear motor, and the pivot its part that lies in cutting a grain cavity is fixed and is set up and cut a grain blade; a circular groove-shaped cooling water channel is arranged at one end of the rotating shaft, which is far away from the speed reducing motor, a radial water channel communicated with the cooling water channel is arranged on the rotating shaft, and one end of the radial water channel, which is far away from the cooling water channel, is positioned at one side of the granulating blade; and a cooling water inlet pipe is communicated with the cooling water channel and is connected with the rotating shaft through rotary sealing. The utility model discloses change and adopt cooling air cooling and adopt water cooling and cooling range to cover wider in the past, the cooling effect is good, and the cooling range almost can all cover the pelleter blade.

Description

Plastic grain cutting machine with cooling structure

Technical Field

The utility model relates to a plastic granulator with cooling structure.

Background

The material granulator is a granulator, is mainly used for processing waste plastic films (industrial packaging films, agricultural mulching films, greenhouse films, beer bags, hand bags and the like), woven bags, agricultural convenient bags, basins, barrels, beverage bottles, furniture, daily necessities and the like, is suitable for most common waste plastics, and is a plastic regeneration processing machine which has the widest application range and the most extensive use range in the waste plastic regeneration industry and is most popular with users.

The plastic granulator mould divide into manually and electronic, and the granulator needs often to trade the net and be used for removing impurity, and extrusion tooling generally is 18 holes, and filter screen blocks back extruder pressure very big, and original manual net that trades can be tired relatively, can use electronic mould, replaces artifically with the motor, labour saving and time saving. The blade of current plastic granulator can produce a large amount of heats when cutting grain, has the mode of adopting jetting cooling gas at present, for example the patent that publication number is CN 204235740U: the utility model provides a plastic granulator with cooling device, its technical scheme's main points are including being equipped with the fixing base, are equipped with the eager grain cavity in the fixing base, and open the front end of fixing base has the feed inlet that communicates with eager grain cavity, are equipped with the roller shaft on the fixing base, the one end of roller shaft is equipped with by motor drive's drive wheel, lies in on the roller shaft the part of eager grain cavity is equipped with the hobbing cutter lie in the frame the below of hobbing cutter with the play feed cylinder of eager grain cavity intercommunication, lie in on the fixing base the top demountable installation of hobbing cutter has and is used for the cooling the annular cooling tube of hobbing cutter, be equipped with an air inlet and a plurality of air jet that are used for jet-propelled refrigerated on the annular cooling tube, the utility model discloses be equipped with annular cooling tube in the top of hobbing cutter, through the cooling when external compressed air spouts to the hobbing cutter be used for cutting thermoplastic plastics, avoid the high temperature also can only lead to the damage of hobbing cutter, but adopt the mode of compressed air to blow hobbing cutter top operation in-process its air just to the jet part to annular cooling tube, the cooling effect is general like this, and the cooling effect does not cover the eager grain cutter piece, does not cover the eager grain cutter region in addition.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the defect that exists among the prior art, provide a plastic granulator with cooling structure, change and adopt the cooling air cooling and adopt water cooling and cooling zone to cover wider in the past, the cooling effect is good, and the cooling zone almost can all cover the pelleter blade.

In order to achieve the purpose, the technical scheme of the utility model is to design a plastic granulator with a cooling structure, which comprises a granulator main body, wherein a plastic strip granulation cavity is arranged on the granulator main body, a plastic strip feeding port is arranged on the plastic strip granulation cavity, a rotating shaft is rotationally arranged in the plastic strip granulation cavity, one end of the rotating shaft exceeds the plastic strip granulation cavity and is connected with an output shaft of a speed reduction motor through a shaft coupling, and a granulation blade is fixedly arranged on the part of the rotating shaft, which is positioned in the granulation cavity;

a circular groove-shaped cooling water channel is arranged at one end of the rotating shaft, which is far away from the speed reducing motor, and the cooling water channel is positioned at the central axis of the rotating shaft; and a cooling water inlet pipe is communicated with the cooling water channel and is connected with the rotating shaft through rotary sealing. The rotary seal belongs to one kind of dynamic seal, and the rotary seal comprises a slip ring filled with polytetrafluoroethylene and a rubber O-shaped ring for providing elasticity, is used for sealing a rod, a shaft, a pin, a rotary joint and the like which have rotary or swing motion, and is not repeated for the prior art. This scheme does certain technological improvement through the pivot of cutting grain part to the granulator, sets up axis cooling water passageway and radial water course, realizes only needing to beat into the cooling water through the inlet tube, and the cooling water rotates through the pivot and produces centrifugal force and spout on cutting grain blade along radial water course, plays the refrigerated effect, takes away the heat of cutting grain blade when cutting grain. Compared with the prior art, the cooling range is no longer limited to the smaller local area of the granulating blade which is just opposite to the cooling medium, but the whole granulating blade of the rotating shaft circle is circumferentially covered, the cooling effect is good, and the cooling range almost can completely cover the blades of the granulator.

The further technical proposal is that two sides of each grain cutting blade are provided with radial water channels; the bottom end of the plastic strip granulating cavity is provided with a water outlet. The radial water channels are arranged more densely and arranged on two sides of each dicing blade, so that the front and back surfaces of each dicing blade can be flushed by cooling water when the dicing blade is used for dicing, and the cooling effect is enhanced.

The further technical scheme is that one feeding hole is arranged and is positioned above or below the cooling water channel. The feeding hole and the cooling water channel are arranged in a separated mode so as to prevent the plastic strips from being rubbed against the cooling water channel during feeding.

The other technical scheme is that two feed inlets are arranged and are respectively positioned above and below the cooling water channel. The feed inlet sets up two and can realize feeding simultaneously from top to bottom, because cut grain blade originally rotates along with the pivot, so feeding from top to bottom realizes cutting grain blade and cutting grain from top to bottom simultaneously, increases plastic granulator's work efficiency to because this scheme cooling space covers bigger, so do not worry about from top to bottom simultaneously the feeding cut the heat that grain can appear from top to bottom simultaneously can't in time be taken away, problem that the cooling effect is not good.

The further technical proposal is that the plastic strip granulating chamber is provided with a through hole of a cooling water inlet pipe which is positioned above or below the plastic strip feeding hole. The cooling water inlet pipe is fixedly connected to the plastic strip pelletizing chamber or the pelletizer main body. The plastic strip granulating cavity is provided with through holes, so that the cooling water inlet pipe can conveniently enter the plastic strip granulating cavity to be connected with the rotating shaft.

The further technical scheme is that the radial water channel comprises a lower section close to the cooling water channel and an upper section far away from the cooling water channel, the lower section is consistent with the radial direction of the rotating shaft, and the upper section is a bending section and the bending direction of the upper section is gradually bent towards the granulating blade from the central axis of the rotating shaft to the circumferential side direction of the rotating shaft. The upper end of the radial water channel is arranged to be a bending section and is bent towards the direction of the granulating blade, so that sprayed water is directly sprayed onto the granulating blade, and the bending direction is suitable for selecting a bending mode with smaller curvature, so that the sprayed cooling water is not completely radial and slightly deviates from the radial direction to the direction of the granulating blade, and more water flows outwards along the surface of the granulating blade after being sprayed; and a plurality of radial water channels are arranged between two adjacent granulating blades to realize that a plurality of water spray ports spray to the surfaces of the granulating blades so as to realize larger cooling coverage.

The utility model has the advantages and the beneficial effects that: the existing method that cooling air is adopted for cooling and water is adopted for cooling is changed, the cooling range is wider in coverage, the cooling effect is good, and the cooling range almost can completely cover the blades of the granulator.

Through making certain technological improvement to the pivot of the grain part of grain machine, set up axis cooling water passageway and radial water course, the realization only needs to beat into the cooling water through the inlet tube, and the cooling water rotates through the pivot and produces centrifugal force and on the grain blade is cut to grain along radial water course blowout, plays the refrigerated effect, takes away the heat of cutting grain blade when cutting grain. Compared with the prior art, the cooling range is no longer limited to the smaller local area of the granulating blade which is just opposite to the cooling medium, but the whole granulating blade of the rotating shaft circle is circumferentially covered, the cooling effect is good, and the cooling range almost can completely cover the blades of the granulator.

The radial water channels are arranged more densely and arranged on two sides of each dicing blade, so that the front and back surfaces of each dicing blade can be flushed by cooling water when the dicing blade is used for dicing, and the cooling effect is enhanced.

The feed inlet sets up two and can realize feeding simultaneously from top to bottom, because cut the grain blade originally and rotate along with the pivot, so feeding about can, the grain blade of realizing cutting is cut grain simultaneously from top to bottom, increases plastic granulator's work efficiency to because this scheme cooling space covers bigger, so do not worry about the feeding simultaneously about can not in time take away the heat that the grain can appear simultaneously, the problem that the cooling effect is not good.

The upper end of the radial water channel is arranged to be a bending section and is bent towards the direction of the granulating blade, so that sprayed water is directly sprayed onto the granulating blade, and the bending direction is suitable for selecting a bending mode with smaller curvature, so that the sprayed cooling water is not completely radial and slightly deviates from the radial direction to the direction of the granulating blade, and more water flows outwards along the surface of the granulating blade after being sprayed; and a plurality of radial water channels are arranged between two adjacent granulating blades to realize that a plurality of water spray ports spray to the surfaces of the granulating blades so as to realize larger cooling coverage.

Drawings

Fig. 1 is a schematic view of a plastic granulator with a cooling structure according to the present invention;

FIG. 2 is a schematic view of the strand pelletizing chamber of FIG. 1;

FIG. 3 is an enlarged, fragmentary view of the shaft within the strand cutting chamber of FIG. 2;

fig. 4 is an enlarged schematic view of the radial water passage of fig. 3.

In the figure: 1. a granulator main body; 2. a plastic strip pelletizing chamber; 3. a feed inlet; 4. a rotating shaft; 5. a coupling; 6. a dicing blade; 7. a cooling water passage; 8. a radial water channel; 9. a cooling water inlet pipe; 10. a water discharge port; 11. through the aperture; 12. a lower section; 13. and (4) an upper section.

Detailed Description

The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

As shown in fig. 1 to 4, the utility model relates to a plastic granulator with cooling structure, including granulator main body 1, set up the plastic strip and cut grain cavity 2 on the granulator main body 1, the plastic strip is cut grain cavity 2 and is equipped with plastic strip feed inlet 3, the plastic strip is cut the internal rotation of grain cavity 2 and is set up pivot 4, 4 one end of pivot surpasss the plastic strip and cuts grain cavity 2 setting and this surpasss the end and links to each other with the output shaft of gear motor through shaft coupling 5, the part that 4 of pivot is located and cuts grain cavity is fixed and is set up and cut grain blade 6, cut grain blade and be equipped with at least three and adjacent and cut grain blade interval setting; a circular groove-shaped cooling water channel 7 is arranged at one end, away from the speed reducing motor, of the rotating shaft 4, the cooling water channel 7 is located on the central axis of the rotating shaft 4, the feed inlet 3 is located above the cooling water channel 7, a radial water channel 8 communicated with the cooling water channel 7 is arranged on the rotating shaft 4, and one end, away from the cooling water channel 7, of the radial water channel 8 is located on one side of the pelletizing blade 6; and a cooling water inlet pipe 9 is communicated with the cooling water channel 7, and the cooling water inlet pipe 9 is connected with the rotating shaft 4 through rotary sealing. The cooling water inlet pipe is fixedly connected to the plastic strip grain cutting cavity, namely the cooling water inlet pipe is fixedly connected to the side wall of the hole of the through hole of the plastic strip grain cutting cavity; two sides of each grain cutting blade 6 are provided with radial water channels 8; the bottom end of the plastic strip pelletizing cavity 2 is provided with a water outlet 10. One feeding hole 3 is arranged; the plastic strip grain cutting chamber 2 is provided with a through hole 11 of a cooling water inlet pipe 9 positioned below the plastic strip feeding hole 3. The radial water channel 8 comprises a lower section 12 close to the cooling water channel 7 and an upper section 13 far away from the cooling water channel 7, the lower section 12 is consistent with the radial direction of the rotating shaft 4, the upper section 13 is a bending section, and the bending direction of the upper section 13 is gradually bent towards the granulating blade 6 from the central axis of the rotating shaft 4 to the circumferential side surface direction of the rotating shaft 4.

The working principle is as follows:

the plastic strip enters into the plastic strip through the feed inlet of this plastic granulator and cuts grain the cavity, cooling water passes through the cooling water inlet tube and enters into the cooling water passageway of pivot axis department on, the rotary grain blade of following the pivot after gear motor starts cuts the grain to entering into the plastic strip in the plastic strip and cuts the grain cavity and cut grain, and the cooling water is because the effect of centrifugal force spouts to the surface of cutting the grain blade along pivot circumference, realize the cover of cooling range on a large scale, there is the cooling effect of preferred.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A plastic granulator with a cooling structure is characterized by comprising a granulator main body, wherein a plastic strip granulation cavity is arranged on the granulator main body, a plastic strip feeding hole is formed in the plastic strip granulation cavity, a rotating shaft is rotationally arranged in the plastic strip granulation cavity, one end of the rotating shaft exceeds the plastic strip granulation cavity and is connected with an output shaft of a speed reduction motor through a coupler, and a granulation blade is fixedly arranged on the part, located in the granulation cavity, of the rotating shaft;

a circular groove-shaped cooling water channel is arranged at one end of the rotating shaft, which is far away from the speed reducing motor, and the cooling water channel is positioned at the central axis of the rotating shaft; and a cooling water inlet pipe is communicated with the cooling water channel and is connected with the rotating shaft through rotary sealing.

2. The plastic granulator with a cooling structure according to claim 1, wherein each pellet cutter has radial water channels on both sides; the bottom end of the plastic strip granulating cavity is provided with a water outlet.

3. The plastic granulator with a cooling structure according to claim 2, wherein the feed port is provided with one and is located above or below the cooling water passage.

4. The plastic granulator with a cooling structure according to claim 2, wherein the number of the feed ports is two and the feed ports are located above and below the cooling water passage, respectively.

5. The plastic granulator with a cooling structure according to claim 3 or 4, wherein the plastic strand granulation chamber is provided with a through hole of a cooling water inlet pipe above or below the plastic strand feeding hole.

6. The plastic granulator according to claim 1 or 2, wherein the radial water passage comprises a lower section close to the cooling water passage and an upper section far from the cooling water passage, the lower section is aligned with the radial direction of the rotating shaft, the upper section is a curved section, and the curved direction of the upper section is gradually curved from the central axis of the rotating shaft to the circumferential side of the rotating shaft toward the granulating blade.