CN212888372U

CN212888372U - Rolling cutter frame of rubber granulator

Info

Publication number: CN212888372U
Application number: CN202021523928.5U
Authority: CN
Inventors: 杨剑平
Original assignee: Changzhou Xiechang Rubber And Plastic Co ltd
Current assignee: Changzhou Xiechang Rubber And Plastic Co ltd
Priority date: 2020-07-28
Filing date: 2020-07-28
Publication date: 2021-04-06
Anticipated expiration: 2030-07-28

Abstract

The utility model belongs to the technical field of rubber particle manufacture equipment technique and specifically relates to a hobbing cutter frame of rubber pelleter, the knife rest that uses on the rubber pelleter of the difficult adhesion that takes place of back rubber granule is provided, the scheme is, the cylindrical installation section of thick bamboo of outer wall installation hobbing cutter has, the airtight fixed left closing cap and the right closing cap that are provided with of both ends circumference of installation section of thick bamboo, the pivot has on the axis of installation section of thick bamboo, the pivot is fixed on left closing cap and right closing cap and is stretched out left branch portion and right branch portion respectively from left closing cap and right closing cap, be equipped with on the axial lead of pivot left branch portion and/or right branch portion with the communicating feed liquor hole with the injection cooling liquid of installation section of thick bamboo inner chamber, it has the play liquid hole with the blowout cooling liquid towards the hobbing cutter edge of a knife to arrange.

Description

Rolling cutter frame of rubber granulator

Technical Field

The utility model belongs to the technical field of rubber particle manufacture equipment technique and specifically relates to a hobbing cutter rest of rubber pelleter.

Background

A rubber granulator, namely a rubber granulator is equipment for producing rubber particles, and the main process is that molten rubber is extruded by a screw, rubber materials are extruded from small holes arranged on a front-end die head by the screw and then cut into particles by a cutter arranged in front of the die head, at the moment, a cooling device is used for spraying water for cooling rubber strips at the small holes, the structure of a cutting machine is different according to the difference of used raw materials or the difference of the performance requirements of the particles, for example, when the rubber is used in a cage, the function of rubber mixing and filtering needs to be enhanced, but the difference between the die head and the granulating device at the die head is not large, for example, the whole machine drawing of the granulator shown in the attached figure 1, the die head structural drawings shown in figures 2 and 3, the cutter head structural drawings shown in figures 4 and 5, the outer end surface of the die head is a plane, rubber outlet holes on the die head are circumferentially arranged, and the rubber strips, the rotary surface of the cutter edge on the cutter head is a plane attached to the end surface of the die head, and the shape of the glue outlet on the die head is determined by the shape required by the particles.

With the progress of the technology, rubber particles are required to be higher and higher in performance, natural rubber and/or rubber particles with excellent performance after being added with certain substances show stronger and stronger viscosity, and in this case, the rubber particles of the existing granulator are easy to be adhered after being cut, and the main reason is that: firstly, the particles do irregular motion after being cut off, the probability of mutual collision is higher, the particles are adhered together once being collided due to strong viscosity of the particles, and if the efficiency needs to be improved, the condition that the particles are adhered to each other is more serious when a cutter head rotates at a high speed; secondly, a water spray cooling device arranged at the die head is poor in cooling pertinence, and enables the particles to move irregularly so as to generate adhesion.

The adhered rubber particles affect the use performance of the particles and the quality of products.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: in order to overcome the defects in the prior art, the cutter frame used on the rubber granulator is provided, wherein the rubber particles are not easy to adhere after being cut.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a rubber granulator's hobbing cutter frame, has the cylindrical installation section of thick bamboo of outer wall installation hobbing cutter, the airtight fixed left closing cap and the right closing cap of being provided with of both ends circumference of installation section of thick bamboo has the pivot on the axis of an installation section of thick bamboo established, the pivot is fixed on left closing cap and right closing cap and is stretched out left branch portion and right branch portion respectively from left closing cap and right closing cap, be equipped with on the axial lead of pivot left branch portion and/or right branch portion with the communicating feed liquor hole in order to pour into the coolant liquid of installation section of thick bamboo inner chamber, arrange on the installation section of thick bamboo and have the play liquid hole in order to spout the coolant liquid towards the hobbing cutter edge of a knife.

The liquid outlet hole faces the edge of the hob, the central line of the liquid outlet hole does not necessarily intersect with the edge of the hob, and the sprayed cooling liquid is only required to be sprayed to the position near the edge of the hob.

The structure with good liquid supply effect is characterized in that the rotating shaft comprises a left shaft and a right shaft which are separated and arranged on the same axis, the left shaft is fixed on the left sealing cover, the right shaft is fixed on the right sealing cover, and the right shaft is a hollow shaft for communicating the inner cavity of the mounting cylinder with the external cooling liquid supply device.

The structure with good coaxiality is characterized in that an axial shaft center hole extending rightwards to the right end of the shaft and a radial hole communicated with the shaft center hole are formed in a rotating shaft part positioned in an inner cavity of the mounting cylinder, and the inner cavity of the mounting cylinder is communicated with an external cooling liquid supply device through the shaft center hole and the radial hole.

The utility model has the advantages that the cutter frame of the rubber granulator changes the prior conventional end plane granulating method into a circumferential hobbing method, the cut particles move regularly in a parabolic shape, collision between the particles is not easy to occur, a cooling device is transferred from the outside to the inside of the cutter frame, a liquid outlet hole of cooling liquid can be accurately aligned to a glue outlet, the regular movement of the particles with better cooling effect can be improved, and the adhesion among the particles can be better prevented; the utility model discloses still have another beneficial effect, because the axis of knife rest is perpendicular to screw rod axis, from each device overall arrangement of equipment, shortened the length dimension of equipment greatly.

Drawings

FIG. 1 is a schematic view of the overall structure of a conventional rubber pelletizer;

FIG. 2 is a front view of the die of FIG. 1;

FIG. 3 is a view A-A of FIG. 2;

FIG. 4 is a front view of the cutter head of FIG. 1;

FIG. 5 is a view from the direction B of FIG. 4;

fig. 6 is a front view of the present invention;

FIG. 7 is a left side view of FIG. 6;

fig. 8 is another schematic structural diagram of the present invention.

The reference numbers in the figures are: 1. the installation cylinder comprises 1-1 parts of a liquid outlet hole, 2 parts of a left sealing cover, 3 parts of a right sealing cover, 4 parts of a rotating shaft, 4-1 parts of a left shaft, 4-2 parts of a right shaft, 4-3 parts of a shaft center hole, 4-4 parts of a radial hole, 5 parts of a liquid inlet hole.

Detailed Description

The invention will now be described in further detail with reference to the drawings and preferred embodiments. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.

Referring to fig. 6 and 7, a rolling cutter holder of a rubber granulator, comprising a cylindrical mounting barrel 1 with a hob installed on the outer wall, wherein both ends of the mounting barrel 1 are circumferentially and hermetically fixed with a left sealing cover 2 and a right sealing cover 3 by welding means, a rotating shaft 4 is arranged on the axis of the mounting barrel 1, the rotating shaft 4 is welded and fixed on the left sealing cover 2 and the right sealing cover 3 and respectively extends out of a left supporting part and a right supporting part from the left sealing cover 2 and the right sealing cover 3, the welding part of the rotating shaft 4 and the left sealing cover 2 and the right sealing cover 3 is in a sealing state, a liquid inlet hole 5 communicated with the inner cavity of the mounting barrel 1 and used for injecting cooling liquid is arranged on the axis of the right supporting part of the rotating shaft 4, liquid outlet holes 1-1 facing the edge of the hob and used for ejecting the cooling liquid are arranged on the mounting barrel 1, the arrangement form of the liquid outlet holes 1-1 is determined by the arrangement form of the, and the adhesive tape is blown to the front of the moving direction of the knife edge, so that the adhesive tape is cooled firstly and then cut into granules, and the granules are ensured not to be adhered to the knife.

The specific structure shown in the attached figure 6 is that the rotating shaft 4 comprises a left shaft 4-1 and a right shaft 4-2 which are separated and arranged on the same axis, the left shaft 4-1 is fixed on the left sealing cover 2, the right shaft 4-2 is fixed on the right sealing cover 3, and the right shaft 4-2 is a hollow shaft for communicating the inner cavity of the mounting cylinder 1 and an external cooling liquid supply device.

FIG. 8 shows a structure of a rotating shaft 4 as a whole, wherein the rotating shaft 4 part in the inner cavity of the mounting cylinder 1 is provided with an axial center hole 4-3 extending rightwards to the right end of the shaft and a radial hole 4-4 communicated with the axial center hole 4-3, and the inner cavity of the mounting cylinder 1 is communicated with an external cooling liquid supply device through the axial center hole 4-3 and the radial hole 4-4.

While the foregoing is directed to embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.

Claims

1. The utility model provides a hobbing cutter frame of rubber pelleter, characterized by: cylindrical installation section of thick bamboo (1) with outer wall installation hobbing cutter, the airtight fixed left closing cap (2) and right closing cap (3) of being provided with in both ends circumference of installation section of thick bamboo (1), pivot (4) have on the axis of installation section of thick bamboo (1), left branch portion and right branch portion are stretched out respectively on left closing cap (2) and right closing cap (3) and from left closing cap (2) and right closing cap (3) in pivot (4), be equipped with on the axial lead of pivot (4) left branch portion and/or right branch portion with the communicating feed liquor hole (5) with the injection cooling liquid of installation section of thick bamboo (1) inner chamber, it has liquid outlet hole (1-1) with the blowout cooling liquid towards the hobbing cutter edge of a knife to arrange on installation section of thick bamboo (1).

2. The roller cutter holder for a rubber pelletizer according to claim 1, wherein: the rotating shaft (4) comprises a left shaft (4-1) and a right shaft (4-2) which are separated and arranged on the same axis, the left shaft (4-1) is fixed on the left sealing cover (2), the right shaft (4-2) is fixed on the right sealing cover (3), and the right shaft (4-2) is a hollow shaft for communicating the inner cavity of the mounting cylinder (1) with an external cooling liquid supply device.

3. The roller cutter holder for a rubber pelletizer according to claim 1, wherein: the rotating shaft (4) part positioned in the inner cavity of the mounting cylinder (1) is provided with an axial center hole (4-3) extending rightwards to the right end of the shaft and a radial hole (4-4) communicated with the axial center hole (4-3), and the inner cavity of the mounting cylinder (1) and an external cooling liquid supply device are communicated through the axial center hole (4-3) and the radial hole (4-4).