CN-116607234-B - Carding workpiece of carding machine and carding machine

Abstract

The invention discloses a carding workpiece of a carding machine and the carding machine, wherein the carding workpiece comprises a movable cover plate and a fixed cover plate, the movable cover plate and the fixed cover plate both comprise a cover plate base body and a cover plate beam body arranged on the cover plate base body, the cover plate beam body is provided with a limiting element fixed along the length direction of the cover plate beam body, and the thermal expansion coefficient of the limiting element is smaller than that of the cover plate beam body. According to the invention, the limiting element is arranged on the cover plate beam body, so that a stable and reliable gauge is provided between the cover plate and the cylinder drum, neps, impurities and short piles in a cotton web are effectively reduced, the carding quality of the carding machine is obviously improved, the condition that a card clothing is connected with a needle firing pin is avoided, the maintenance cost of the carding machine is reduced, the card clothing replacement period and the service life are prolonged, the cover plate card clothing can maintain the optimal carding performance, and huge economic benefits are generated for textile enterprises.

Inventors

• WANG JIAN
• HU ZHI

Assignees

• 上海融颖机械设备有限公司

Dates

Publication Date

20260508

Application Date

20230330

Claims (7)

1. 1. The carding workpiece of the carding machine comprises a movable cover plate and a fixed cover plate, wherein the movable cover plate and the fixed cover plate both comprise a cover plate base body and a cover plate beam body arranged on the cover plate base body; The movable cover plate adopts an aluminum side clamp to cover the card clothing, and the limiting element is fixed at the position of the cover plate beam body close to the base part of the card clothing supporting element or below the longitudinal center.
2. 2. A carding machine according to claim 1, wherein the movable cover plate is covered with a card clothing by using a steel edge clip, and the limiting element is fixed at a position of the cover plate beam body which is far away from the card clothing or is arranged at an upper position of the center of gravity or is arranged at the top.
3. 3. A carding machine according to claim 1, wherein the limiting element is made of carbon fiber, steel or other nonmetallic materials, and the limiting element is in a square strip, square tube, cylindrical rod, cylindrical tube or U-shaped strip structure.
4. 4. A carding element of a carding machine as claimed in claim 1, wherein the limiting element of the movable cover plate is fixedly connected to the cover plate beam body by at least two fastening elements.
5. 5. A carding workpiece of a carding machine according to claim 1, wherein the cover plate beam body of the movable cover plate is internally provided with a first reinforcing rib and a second reinforcing rib from top to bottom, and the limiting element is arranged on the first reinforcing rib through bolts penetrating through the first reinforcing rib and the second reinforcing rib.
6. 6. A carding workpiece of a carding machine as claimed in claim 1, wherein the height of the cover plate beam body of the movable cover plate is 70-80mm, the gravity center of the movable cover plate is close to the bottom of the covering card clothing substrate, and the top wall thickness of the cover plate beam body is thinner, so that a structure with the cross section area increasing stepwise from top to bottom is formed.
7. 7. A carding machine, characterized by having a card workpiece according to any one of claims 1-6.

Description

Carding workpiece of carding machine and carding machine Technical Field The invention relates to the technical field of carding machines, in particular to a movable cover plate and a fixed cover plate of a carding machine. Background The movable cover plate of the carding machine has the main functions of carding, impurity removal, mixing and removal of most of neps, impurities and short piles of the opened loose fibers in the carding process, and the gauge between the movable cover plate and the cylinder card clothing of the carding machine is important for the quality of the cotton carding. Different raw materials have different requirements on the gauge between cylinders of the movable cover plate, fibers can be necessary but not excessively combed only by proper gauge, the aluminum alloy movable cover plate is easy to deform due to the influence of temperature in the use process, the deformation directly influences the quality of cotton carding, and therefore the problem of difficult adjustment of the gauge commonly exists in the aluminum alloy movable cover plate is solved. At present, in order to continuously improve the production efficiency and the carding speed of carding machines at home and abroad, the carding area with the width of 1000mm is widely developed from the past to the width of 1500mm, as the carding area is widened, the movable cover plate bone becomes longer and longer, and the movable cover plate bone used generally has a plurality of deformation problems which are difficult to solve. The common deformation problems are two, namely, the weight of the top of the movable cover plate bone is heavy, the height of the cover plate beam body directly influences the deformation-resistant rigidity, and the faster the rotating speed of the cylinder drum of the carding machine is, the larger the fiber tension between the cylinder card clothing and the movable cover plate card clothing is, and the larger the influence on the deformation of the movable cover plate bone is. When the vertical pressing deformation quantity of the movable cover plate beam body with the same sectional area and the height of 65mm is larger than that of the cover plate bone with the height of 75mm, experimental analysis proves that the higher the cover plate beam body is, the higher the rigidity is. However, the cover plate beam body is too high, so that the gravity center is unstable, especially when the beam body cross-sectional area gathering part is at the top, a state of heavy head and light foot is formed, under the tension of transverse carding fibers of the movable cover plate card clothing and the cylinder card clothing, when the movable cover plate enters the carding area to contact the curved rail and leaves the carding area to separate from the curved rail, the movable cover plate is enabled to swing laterally in the horizontal direction, finally, the situation that the movable cover plate card clothing and the cylinder card clothing are connected with each other under a smaller carding gauge is caused, the card clothing is likely to be damaged, the carding effect is further deteriorated, and unnecessary economic loss is caused. The other is that the cover plate beam body is of a cavity structure, the cover plate beam body is easy to deform laterally when being used on a wide carding machine, the temperature in the carding machine can be quickly raised to be above 35 ℃ from a cold machine to a running working heat machine, the carding machine is enabled to generate thermal expansion on the whole working width after being heated, and the movable cover plate bone is deformed in a concave curve or a convex curve after being heated. In order to solve the deformation problem of the cover plate in the prior art, the following technical scheme is proposed, and the technical scheme is specifically shown in a Chinese patent document with a patent publication number of CN 216107369U. Reference 1 discloses an utility model patent for adjusting an aluminum alloy movable cover plate under a carding machine, which solves the problems that the aluminum alloy movable cover plate is deformed in the use process, so that the gauge is changed, the carding quality of the carding machine and the impurity removal mixing effect are affected, the adjustable gauge is generated, and the deformation amount in use can be compensated by presetting the deformation amount, so that the curvature deformation in a cover plate bone caused by prestress is eliminated again due to the heat-induced deformation caused by the carding process. Can facilitate the adjustment of different raw materials with different requirements on the gauge. However, in the above patent, the screw adjusting method can effectively compensate the deformation in use by presetting the deformation, but the temperature rise change is different according to different climatic environments, and the change of the cover plate is also different. The disadvantage is that the pr