CN112481705A

CN112481705A - Rolling device of peeling machine

Info

Publication number: CN112481705A
Application number: CN202011480215.XA
Authority: CN
Inventors: 马兰; 吕江南; 李尉霞; 刘佳杰; 向伟; 颜波; 文庆华; 龙超海
Original assignee: Institute of Bast Fiber Crops of CAAS
Current assignee: Institute of Bast Fiber Crops of CAAS
Priority date: 2020-12-15
Filing date: 2020-12-15
Publication date: 2021-03-12

Abstract

The invention discloses a rolling device of a peeling machine, which comprises a cylinder body which is oppositely arranged up and down to form a rolling channel, wherein bionic convex points simulating the side section of the upper half part of the back of pangolin are arranged on the outer surface of the cylinder body, and gaps are arranged among the bionic convex points. According to the invention, the bionic salient points imitating the side sections of the upper back parts of the pangolins are arranged on the barrel body, so that the stalk separation capacity is further improved, the stems and leaves are reduced to be attached to the barrel body, and the machine halt cleaning time is saved; meanwhile, the upper barrel body and the lower barrel body are in the same direction at different speeds, and the stalks are brought into the gap between the two barrel bodies along with the rotation of the barrel bodies, so that the stalks are sheared, torn and pulled to achieve the purpose of separating hemp skin from hemp bones, and the adhesion of the stalks and leaves on the barrel bodies is further avoided.

Description

Rolling device of peeling machine

Technical Field

The invention belongs to the technical field of hemp crop processing, and particularly relates to a rolling device of a peeling machine.

Background

Jute and kenaf are important economic crops in China, the stems of the jute and the kenaf are about 2 to 5 meters high and about 2 to 4 centimeters thick, and hemp barks can be used as special fibers after being retted and have wide application; the crushed hemp bone can be used as an organic matrix for planting edible fungi and the like. With the development of the textile industry in China, the environmental protection consciousness is increasingly deepened, natural packaging fibers return, and yellow and red ramie functional products and comprehensive utilization research and development are deeply developed, the market demand is increasingly increased, and the peeling processing level of the fresh stems of the yellow and red ramie is the key of influencing the development trend of the whole industry.

Chinese patent CN201952528U discloses a small and medium-sized fixed kenaf barker, wherein 8 wave teeth are uniformly distributed on a front press roll, the wave teeth are 10-15cm high, and 12 upper strips are fixed on the press roll. In the rolling process, the rolling roller is provided with the wave teeth and the upper strips, so that the stems and leaves are easy to attach to the barrel body to cause slipping or winding, and the rolling effect is not obvious; further, if the winding accumulation is too much, the machine needs to be stopped for cleaning, which wastes time and labor and influences subsequent work.

Disclosure of Invention

The invention aims to provide a rolling device of a peeling machine, thereby solving the problems.

In order to achieve the purpose, the invention discloses a rolling device of a peeling machine, which comprises a cylinder body which is oppositely arranged up and down to form a rolling channel, wherein bionic convex points imitating the side section of the upper half part of the back of pangolin are arranged on the outer surface of the cylinder body, and gaps are arranged among the bionic convex points.

Furthermore, the mathematical formula of the fitting curve equation of the outer contour curved surface of the bionic convex point is as follows:

Z＝X·e^(-x2-y2)wherein x is 0, 0.1 or 1; y is 0, 0.1 or 1 in mm.

Furthermore, the bionic salient points are arranged along the axial direction of the cylinder body according to a spiral line.

Further, the spiral angle of the spiral line is 10-15 degrees.

Further, the upper cylinder body and the lower cylinder body rotate in the same direction at different speeds.

Compared with the prior art, the invention has the advantages that:

according to the invention, the bionic salient points imitating the side sections of the upper back parts of the pangolins are arranged on the barrel body, so that the stalk separation capacity is further improved, the stems and leaves are reduced to be attached to the barrel body, and the machine halt cleaning time is saved; meanwhile, the upper barrel and the lower barrel are in the same direction at different speeds, and the stalks are brought into the gap between the two barrels along with the rotation of the barrels, so that the stalks are sheared, torn and the like to separate hemp skin and hemp bones, the adhesion of the stalks and the leaves on the barrels is further avoided, the working efficiency is greatly improved, the labor burden of workers is reduced, the production cost is saved, and better economic benefit is brought.

The present invention will be described in further detail below with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic front view of a drum of a debarker roll assembly as disclosed in accordance with a preferred embodiment of the present invention;

fig. 2 is a front view schematically illustrating a rolling device of the debarker according to the preferred embodiment of the present invention.

Illustration of the drawings:

1. a barrel; 2. bionic salient points; 3. a sprocket; 4. a drive shaft; 5. and a frame.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.

As shown in fig. 1-2, the invention discloses a rolling device of a peeling machine, which comprises cylinder bodies 1 which are oppositely arranged up and down to form a rolling channel, wherein the shafts fixedly connected with the middle part of the cylinder body 1 are all pivoted on a frame 5, the shaft of one cylinder body 1 is a driving shaft 4, the end part of the driving shaft 4 is fixedly connected with a chain wheel 3, the chain wheel 3 drives the cylinder body to rotate and roll, bionic salient points 2 imitating the side sections of the upper half parts of the backs of pangolins are arranged on the outer surface of the cylinder body 1 at the lower side, gaps are arranged among the bionic salient points 2, so that the bionic salient points 2 at one side are meshed with the gaps at the other side, the stalk separation capacity is improved through the bionic salient points 2, the stems and leaves are reduced to.

In this embodiment, in a digital fitting manner, the mathematical formula of the fitting curve equation of the outer contour curved surface of the bionic convex point 2 is as follows:

Z＝X.e^(-x2-y2)wherein x is 0, 0.1 or 1; y is 0, 0.1 or 1 in mm; thereby realizing the accurate batch processing of the bionic salient points 2.

In the embodiment, in order to realize the uniform stress and backward movement of the stalks in the circulating rolling process, the bionic convex points 2 are arranged along the axial direction of the cylinder body 1 according to a spiral line, and the spiral arrangement is similar to the helical tooth working principle, so that the rolling effect of the cylinder body 1 on the stalks is increased, the actions of shearing, tearing and pulling and the like on the stalks are enhanced, the skin and bone separation is better, and the helical angle is 10-15 degrees according to experience. The helix angle is too small to achieve the spiral effect, and the helix angle is too large to generate component force to the bearing and the main shaft, and meanwhile, the machining difficulty is also large. Further, in order to increase the grinding times of the bionic salient points 2 in unit length on the stems, the number of spiral heads is selected to be 4. The helix angle is determined by:

wherein M is the width of the feeding opening of the cylinder 1, D is the diameter of the cylinder 1, and theta is the circumferential angle of the bionic salient point 2 corresponding to the cylinder 1.

In this embodiment, the upper and lower barrels 1 rotate in the same direction at different speeds, i.e., rotate in the same direction at different speeds, so that the stems are sheared, torn, and the like to separate hemp skin from hemp bone, thereby further preventing the stems and leaves from attaching to the barrels 1.

Wherein, in 1 working hour, the bionic compression roller and the common compression roller are respectively used for carrying out the comparative test of the stem leaf adhesion, and the test results are as follows (the more the adhesion times are, the worse the rolling effect is shown):

the above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a peeler rolling device, includes relative setting from top to bottom and forms barrel (1) that rolls the passageway, its characterized in that, be provided with bionical bump (2) of imitative pangolin back first part side cross-section on the surface of barrel (1), be provided with the clearance between bionical bump (2).

2. The rolling device of the peeling machine as claimed in claim 1, wherein the fitted curve equation of the outer contour curved surface of the bionic convex point (2) has the mathematical formula:

Z＝X·e^(-x2-y2)wherein x is 0, 0.1 or 1; y is 0, 0.1 or 1 in mm.

3. The debarker rolling apparatus of claim 2, characterized in that the biomimetic protrusions (2) are arranged in a spiral line along the axial direction of the drum (1).

4. The debarker roller assembly of claim 3 wherein the helix angle of the helix is between 10 ° and 15 °.

5. Debarker roller according to any one of claims 1-4, characterized in that the upper and lower drums (1) rotate in the same direction at different speeds.