CN216464864U

CN216464864U - Liquid crystal polymer grain cutting cutter head with hob

Info

Publication number: CN216464864U
Application number: CN202123098868.4U
Authority: CN
Inventors: 张东宝; 于冉; 徐良
Original assignee: Nanjing Qingyan Polymer New Materials Co ltd
Current assignee: Nanjing Qingyan Polymer New Materials Co ltd
Priority date: 2021-12-10
Filing date: 2021-12-10
Publication date: 2022-05-10
Anticipated expiration: 2031-12-10

Abstract

The utility model discloses a liquid crystal polymer grain cutting cutter disc with a hob, which comprises two cutting roller sets and two chopping roller sets, wherein each cutting roller set comprises a cutting transmission shaft and a plurality of groups of disc hobs, the middle part of each cutting transmission shaft plays a bearing role, a plurality of inclined plane cutters are uniformly arranged on the outer circumferences of the two sides of each disc hob, a sliding sleeve is arranged between the adjacent disc hobs of the plurality of groups, each chopping roller set comprises a chopping transmission shaft and a worm spiral hob, the middle part of each chopping transmission shaft plays a bearing role, and the worm spiral hobs of the two chopping roller sets are oppositely arranged in the rotating direction and are installed in a meshing manner; the inclined plane cutter can provide certain vertical decurrent supplementary tangential force, because the fuse-element macromolecular material only relies on gravity and extrusion force to appear warping easily in cutting process, this problem can be alleviated to supplementary tangential force, can make liquid crystal macromolecular material contact cutting edge at the cutting process asynchronous through intermeshing's worm spiral hob, has avoided the phenomenon that liquid crystal macromolecular material slided at the blade.

Description

Liquid crystal polymer grain cutting cutter head with hob

Technical Field

The utility model relates to a macromolecular material processing technology field, in particular to take liquid crystal polymer of hobbing cutter to cut grain blade disc.

Background

Liquid crystal polymers, also known as liquid crystal polymers, are new types of polymer materials that generally become liquid crystalline under certain heating conditions, hence their name. The liquid crystal polymer material needs to be subjected to a step of cutting pellets in the manufacturing process. The traditional working principle of polymer material cutting is that a liquid crystal polymer material is melted and filtered through an extruder, and is extruded into a strip, and then the strip is cooled and solidified and then cut into particles. It is now faster to contact the melt with cooling water and cut the pellets directly at the instant of the melt extrusion die face. The melt granulation has obvious advantages compared with solid granulation, the liquid crystal polymer material is scraped by the blade under the melt state, no dust is formed, the granulation shape is regular, and the packaging and the transportation are both convenient. Wherein cut grain mechanism and be the key part of liquid crystal polymer material grain cutting in-process.

Chinese patent CN202010209675.2 discloses a high polymer material rapid granulator, which comprises a frame, wherein the frame comprises a first side plate and a second side plate, a base is connected between the first side plate and the second side plate, a plurality of material guide grooves are formed in the base, a friction roller rotating shaft is connected between the first side plate and the second side plate, a plurality of friction rollers are arranged at the friction roller rotating shaft, and a motor for driving the friction roller rotating shaft is arranged at the first side plate; the frame is also provided with an air cylinder, the movable end of the air cylinder is provided with a cutter unit, and the granulator also comprises a bearing unit; bear the unit below including the unit of gathering materials, the unit of gathering materials includes fan, hopper, induced drafts and is responsible for and the feed bin, and the hopper is connected with a plurality of unloading pipes, and a plurality of unloading pipes are parallelly connected, and a plurality of unloading pipes all are responsible for with induced drafting and are connected. Cut grain efficiently to can adjust according to cutting grain specification. Chinese patent CN202010292683.8 discloses a granulator for high polymer materials, which comprises a feeding hopper, a refrigerator, a case, a granulating mechanism, a dedusting mechanism, a discharging mechanism, a bevel frame and a cold-fixing mechanism, wherein the granulating mechanism comprises a support frame, two cutting rollers, a gear I, a motor I, a chopping roller, a gear II, a motor II and a fixing frame; the device can carry out the cold setting to the macromolecular material granule that has just cut and handle, avoids the macromolecular material granule because the high temperature laminating is in the same place, can protect operating personnel's healthy and surrounding environment through dust removal mechanism to cut grain mechanism and can follow and pull down alone in the device, make things convenient for the repair and the maintenance of cutting grain mechanism.

However, although the above documents all adopt the hobbing cutter type dicing, the melt polymer material cannot provide an excessive pressing force during the dicing process, the melt polymer material is easily deformed during the cutting process only by gravity and the pressing force, and in the prior art, the liquid crystal polymer material is in contact with the cutting edge during the cutting process, and the phenomenon of slippage is easily generated at the cutting edge.

SUMMERY OF THE UTILITY MODEL

It is an object of the present invention to solve at least the above problems and to provide at least the advantages which will be described later.

The utility model discloses a still another purpose provides a take liquid crystal polymer of hobbing cutter to cut grain blade disc, can make liquid crystal macromolecular material contact cutting edge at the cutting in-process desynchronized through intermeshing's worm spiral hobbing cutter, has avoided the phenomenon that liquid crystal macromolecular material slided at the blade to solve the problem that proposes in the above-mentioned background art.

In order to realize according to the utility model discloses a these purposes and other advantages provide a grain blade disc is cut to liquid crystal polymer of taking hobbing cutter, technical scheme as follows:

including two dissection roller sets and two shredding roller sets, its characterized in that:

the cutting roller set comprises a cutting transmission shaft and a plurality of groups of disc cutters, the middle part of the cutting transmission shaft plays a bearing role, a plurality of inclined plane cutters are uniformly arranged on the outer circumferences of two sides of each disc cutter, a sliding sleeve is arranged between every two adjacent groups of disc cutters, a transmission key is arranged on the cutting transmission shaft, key grooves are formed in the middle parts of the disc cutters and the middle parts of the sliding sleeves, and the disc cutters and the sliding sleeves are arranged on the cutting transmission shaft through the key grooves and the transmission keys in a matched mode;

the chopping roller set comprises a chopping transmission shaft and a worm spiral hob, the middle part of the chopping transmission shaft plays a bearing role, a transmission key is arranged on the chopping transmission shaft, a key groove is formed in the middle part of the worm spiral hob, and the worm spiral hob is installed on the chopping transmission shaft through the key groove and the transmission key in a matched mode;

the two segment-cutting roller sets are arranged on the same horizontal plane, the distances between the disc cutters of the two segment-cutting roller sets are equal and are in cross meshing distribution, and the inclined plane cutters of the two segment-cutting roller sets are arranged oppositely.

The two shredding roll groups are arranged on the same horizontal plane, and the worm spiral hobs of the two shredding roll groups are oppositely arranged in the rotating direction and are installed in a meshed mode.

Preferably, the outer edge of the disc cutter and the outer edge of the bevel cutter are subjected to edging treatment.

Preferably, the disc cutters are arranged in 13 groups, and the bevel cutters arranged on the outer circumferences of both sides of the disc cutters are 20 groups.

Preferably, the bevel cutters have a width which is one quarter of the distance between adjacent disc cutters.

Preferably, the length of the worm screw hob is equal to the length of the combination of the several groups of disc hobs.

Preferably, the midperpendicular of the two sets of chopper rolls coincides with the midperpendicular of the two sets of chopper rolls.

The utility model discloses at least, include following beneficial effect:

1. the disc cutter cuts the liquid crystal polymer material through rotation, and the disc cutter is matched with the inclined plane cutter to cut particles, the inclined plane cutter can provide certain vertical downward auxiliary tangential force, and the auxiliary tangential force can relieve the problem because the melt polymer material is easy to deform in the cutting process only by gravity and extrusion force;

2. the liquid crystal high polymer material can asynchronously contact with the cutting edge in the cutting process through the worm spiral hobs meshed with each other, so that the phenomenon that the liquid crystal high polymer material slides on the cutting edge is avoided;

3. the liquid crystal polymer material is pre-cut by the disc cutter and the inclined plane cutter, and the pre-cut is finished by the worm spiral cutter which is meshed with the liquid crystal polymer material downwards to cut particles, so that the working efficiency is improved.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is a left side view of the present invention;

fig. 2 is a side view of the present invention;

fig. 3 is a top view of the present invention;

fig. 4 is a front view of the present invention;

FIG. 5 is a schematic structural diagram of a disc cutter;

fig. 6 is a schematic structural diagram of the worm spiral hob.

In the figure: 1. a segment roller set; 2. a cutter roll group; 3. cutting a transmission shaft; 4. a disc cutter; 5. a bevel cutter; 6. a sliding sleeve; 7. chopping the transmission shaft; 8. worm spiral hob.

Detailed Description

The present invention is described in further detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description.

It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.

According to shown in fig. 1-6, the utility model provides a grain blade disc is cut to liquid crystal polymer of taking hobbing cutter, technical scheme is as follows:

the cutting device comprises two cutting roller sets 1 and two chopping roller sets 2, wherein the middle vertical planes of the two cutting roller sets 1 are superposed with the middle vertical planes of the two chopping roller sets 2; the two cutting roll sets 1 are arranged on the same horizontal plane, the cutting roll set 1 comprises a cutting transmission shaft 3 and a plurality of groups of disc cutters 4, the middle part of the cutting transmission shaft 3 plays a bearing role, the disc cutters 4 of the two cutting roll sets 1 are equal in distance and are in cross meshing distribution, the cutting transmission shaft 3 is used for providing rotating power for the disc cutters 4 through connecting a power system, the disc cutters 4 are used for cutting liquid crystal polymer materials through rotation, a plurality of inclined plane cutters 5 are uniformly arranged on the outer circumferences of two sides of the disc cutters 4, the inclined plane cutters 5 of the two cutting roll sets 1 are oppositely arranged, the outer edges of the disc cutters 4 and the outer edges of the inclined plane cutters 5 are subjected to cutting edge treatment, on one hand, the inclined plane cutters 5 can assist the grain cutting process, on the other hand, the inclined plane cutters 5 can provide certain vertical downward auxiliary tangential force, and deformation easily occurs in the cutting process due to the fact that the melt polymer materials only depend on gravity and extrusion force, auxiliary tangential forces can alleviate this problem; sliding sleeves 6 are arranged among a plurality of groups of adjacent disc cutters 4, the sliding sleeves 6 are used for separating the disc cutters 4 to enable the adjacent disc cutters 4 to keep a preset distance, a transmission key is arranged on the sectioning transmission shaft 3, key grooves are formed in the middle of the disc cutters 4 and the middle of the sliding sleeves 6, the disc cutters 4 and the sliding sleeves 6 are installed on the sectioning transmission shaft 3 through the key grooves and the transmission key in a matched mode, and the key grooves and the transmission key are matched; the two chopping roller sets 2 are arranged on the same horizontal plane, each chopping roller set 2 comprises a chopping transmission shaft 7 and a worm spiral hob 8, the middle parts of the chopping transmission shafts play a bearing role, the worm spiral hobs 8 of the two chopping roller sets 2 are oppositely arranged in a rotating direction and are installed in a meshed mode, the worm spiral hobs 8 play a role in further chopping the liquid crystal polymer materials cut by the disc-shaped hobs 4, the liquid crystal polymer materials can be in asynchronous contact with cutting edges in the cutting process through the worm spiral hobs 8 which are meshed with each other, the phenomenon that the liquid crystal polymer materials slide on the cutting edges is avoided, a transmission key is arranged on each chopping transmission shaft 7, a key groove is formed in the middle part of each worm spiral hob 8, and the worm spiral hobs 8 are installed on the chopping transmission shafts 7 in a matched mode through the key grooves and the transmission keys;

in the above scheme, two dissection roller sets 1 and two shredding roller sets 2 constitute liquid crystal polymer and cut grain blade disc jointly, and wherein two dissection roller sets 1 carry out the precutting to liquid crystal polymer material through disc cutter 4 and inclined plane cutter 5, and the lower worm spiral hob 8 through the meshing installation after the precutting accomplishes and cuts grain, has improved work efficiency.

In a preferred scheme, the disc cutters 4 are arranged in 13 groups, the inclined plane cutters 5 arranged on the outer circumferences of two sides of the disc cutters 4 are 20 groups, the width of each inclined plane cutter 5 is one fourth of the distance between the adjacent disc cutters 4, and the length of the worm spiral cutter 8 is equal to the length of the combination of the disc cutters 4.

While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the appended claims, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.

Claims

1. The utility model provides a grain blade disc is cut to liquid crystal polymer of taking hobbing cutter, includes two dissection roller sets (1) and two shredding roller sets (2), its characterized in that:

the cutting roller set (1) comprises a cutting transmission shaft (3) and a plurality of groups of disc cutters (4), wherein the middle part of the cutting transmission shaft plays a bearing role, a plurality of inclined plane cutters (5) are uniformly arranged on the outer circumferences of two sides of each disc cutter (4), a sliding sleeve (6) is arranged between every two adjacent groups of disc cutters (4), a transmission key is arranged on the cutting transmission shaft (3), key grooves are formed in the middle parts of the disc cutters (4) and the sliding sleeve (6), and the disc cutters (4) and the sliding sleeve (6) are installed on the cutting transmission shaft (3) through the key grooves and the transmission key in a matched mode;

the chopping roller set (2) comprises a chopping transmission shaft (7) and a worm spiral hob (8) which play a bearing role in the middle, a transmission key is arranged on the chopping transmission shaft (7), a key groove is formed in the middle of the worm spiral hob (8), and the worm spiral hob (8) is installed on the chopping transmission shaft (7) through the key groove and the transmission key in a matched mode;

the two segment cutting roller sets (1) are arranged on the same horizontal plane, disc cutters (4) of the two segment cutting roller sets (1) are equal in distance and are in crossed meshed distribution, and inclined plane cutters (5) of the two segment cutting roller sets (1) are arranged oppositely;

the two chopping roller sets (2) are arranged on the same horizontal plane, and the rotation directions of the worm spiral hobs (8) of the two chopping roller sets (2) are oppositely arranged and are installed in a meshed mode.

2. The liquid crystal polymer grain cutting cutter head with the hob according to claim 1, characterized in that: and the outer edge of the disc cutter (4) and the outer edge of the inclined plane cutter (5) are subjected to edging treatment.

3. The liquid crystal polymer grain cutting cutter head with the hob according to claim 1, characterized in that: the disc cutters (4) are arranged into 13 groups, and the inclined plane cutters (5) arranged on the outer circumferences of the two sides of the disc cutters (4) are 20 groups.

4. The liquid crystal polymer grain cutting cutter head with the hob according to claim 1, characterized in that: the width of the bevel cutter (5) is one fourth of the distance between the adjacent disc cutters (4).

5. The liquid crystal polymer grain cutting cutter head with the hob according to claim 1, characterized in that: the length of the worm spiral hob (8) is equal to the combined length of the plurality of groups of disc hobs (4).

6. The liquid crystal polymer grain cutting cutter head with the hob according to claim 1, characterized in that: the middle vertical planes of the two cutting roller sets (1) are superposed with the middle vertical planes of the two chopping roller sets (2).