JPS60119225A - Method for correcting top bar in carding machine - Google Patents

Abstract

PURPOSE:To improve the accuracy of the mounting surface of a top card clothing of a top bar, by forming a resin layer of a given thickness between the mounting surface of the top card clothing of the top bar and a platen. CONSTITUTION:Plural holes 3 are formed on the card clothing mounting surface 2 of a top card clothing of a top bar body 1, and a release agent is applied to the mounting surface 2 to form a nonadhesive film 41. A release agent is applied onto a platen 5 to form a nonadhesive film 42, and a thermosetting resin in an amount sufficient to fill the space between the surface of the platen 5 and the mounting surface 2 of the top card clothing. A sliding surface 7 of the top bar body 1 is then placed on a block 6 from above and clamped. The resin between the mounting surface 2 of the top card clothing and the platen 5 is hardened at ordinary temperature, and a resin layer 10 of a given thickness in which the resin is filled in the holes 3 is formed.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for correcting a top bar of a carding machine top, which improves the flatness of the top clothing attachment surface of the top bar to which the top clothing is attached.

In a carding machine, in order to perform a good carding effect, the actual situation is that the gap between the cylinder needle tip surface and the top needle tip surface cannot be made too narrow.

The top bar is made of elongated cast iron with an inverted T-shaped cross section, but traditionally, after forming the shape through a predetermined machining process, we measured the accuracy of the top needle cloth attachment surface and investigated the residual stress caused by casting and the machining process. This is done through processing.

When attaching top clothing to the top bar modified above,
If the correction accuracy is poor, you will have to grind the needle tip after attaching the top clothing, which will blunt the sharpened needle tip. must be corrected.

This kind of highly accurate correction requires a high level of skill and has the disadvantage that it takes time to become proficient.

Conventionally, in order to solve the above-mentioned drawbacks, a thermosetting resin was applied to the top bar, the top needle cloth sticking surface of the top bar was pressed against the resin, and the top bar was separated from the top bar by applying the top needle cloth sticking surface to the resin. There is a method for manufacturing dog bars in which the bottom surface of the resin layer is used as the surface to which the top clothing is attached, but in this method, shear stress is generated on the resin layer and the surface to which the top clothing is attached due to curing shrinkage of the resin when the resin layer is cured. Therefore, this has the disadvantage that the top bar is curved, making it difficult to obtain flat precision.

In addition, a resin layer attachment surface is formed on the top clothing attachment surface of the top bar to integrally fix the resin layer to the top bar body, and the surface of the resin layer is cut flat to form a top clothing attachment surface. A method of manufacturing a top bar that forms a top bar is also being considered.

However, when cutting the resin layer, the top bar must be firmly fixed to withstand the cutting resistance, but when fixing something with distortion, the distortion may be corrected to some extent, or conversely, the distortion may increase. Therefore, flatness accuracy can be obtained during cutting, but when the fixation is released, the top bar elastically recovers and bunching occurs, so it is important to obtain high accuracy. Furthermore, even if both ends of the top bar are fixed, the central portion easily bends and escapes due to the cutting force, so there is a drawback that high precision cannot be obtained even by cutting.

Furthermore, the problem with the conventional method of repairing the top bar is that the resin layer is integrally bonded to the top bar, so the top bar has to be repaired again after the top clothing has been attached and used for a long time. In some cases, the disadvantage is that it requires a great deal of effort to remove the resin layer.

The present invention eliminates the drawbacks of the conventional top bar correction method for carding machines, improves the accuracy of the top needle cloth attachment surface of the dog bar, and allows the resin layer to be easily removed even when re-correction is required. The present invention provides a method for modifying a top bar for a carding machine.

Examples will be described below based on the drawings.

Embodiment 1 As shown in FIG. An m-type agent is applied to the surface to form a non-adhesive film 41.

Fig. 2 shows an embodiment of the correction device used in the method of correcting the top bar for a carding machine of the present invention. A hide block 6 is provided with a predetermined spacing between the surface plate and the surface plate.

As shown in FIG. 3, the hide block 6 has an inclined upper surface corresponding to the inclination of the sliding surface 7 of the top bar main body, and is arranged so that the top clothing attachment surface 2 is parallel to the surface plate 5. do.

Next, first, a release agent such as silicone As-t fluorocarbon thread is applied onto the surface plate 5 and dried to form an extremely thin non-adhesive film 42.
Thermosetting resin is applied onto the non-adhesive film 42 in an amount sufficient to fill the space between the surface plate surface and the top needle cloth attachment surface.

Place the sliding surface 7 on the hide block 6 so that the top needle cloth attaching surface 2 of the top bar body 1 contacts the resin from above the resin applied on the surface plate surface, and then push it onto the clamp 8 very gently. Fix it.

Although it is possible to repair several dogbars at the same time by arranging them one by one, if you are working on one dog at a time, please refer to Figure 6-
As shown in FIG. 4, a block 9 can be provided on the side of the top bar body to prevent the W fat from flowing out.

The resin between the top needle cloth attachment surface and the surface plate is cured at room temperature, and the small hole 3 is filled with resin J'jj of a predetermined thickness.
1o.

After the resin has hardened, remove the top bar body and the resin layer from the surface plate surface, and remove and finish the excess resin layer from the top needle cloth attachment surface of the top bar body. )
The correction of the whirlpool bar is completed.

In the above embodiment, resin was applied on the surface plate 5, but after first placing the top bar body 1 on the height block 6, the resin was applied to the space between the surface plate surface and the top clothing attaching surface. It can also be poured.

In addition, resin can be injected into the small hole drilled in the top clothing attachment W1 of the top bar before the top bar body is placed on it, allowing the small hole to be filled with resin. .

In addition, the curing time can be accelerated by uniformly heating the surface plate using a thermosetting resin such as ebony resin, polyester resin, or phenolic resin, but it is preferable to cure at room temperature as this will cause thermal distortion. .

The top bar formed based on the dog bar modification method described above is as shown in FIG.
Since it is formed on a zero plate and cured at room temperature, it is possible to obtain a highly accurate flat surface without distortion.

In addition, a release agent is applied to the surface of the top bar to which the top needle cloth is attached, and a non-adhesive film 41 is formed, so that the surface of the top bar where the top needle cloth is attached is coated with a non-adhesive film 41, so that a grease layer 1 is formed as shown in FIG.
0 can also be easily peeled off.

Example 2 In the above example, UV 4-finishable resin resin is used as the resin, and the resin is poured into the space between the top of the surface plate and the top attachment surface of the top bar.

The upper surface of the surface plate is made of a transparent plate (for example, glass) that allows ultraviolet rays to pass through, and an ultraviolet irradiation device consisting of a high-pressure mercury lamp is installed below it to irradiate the ultraviolet curable resin with ultraviolet rays to harden the resin. It is something to do.

In this example, the ultraviolet-cured stomach fat is cured by ultraviolet rays, so it can be cured in an extremely short time, from several tens of millimeters to several minutes, and the working time is greatly shortened. I'll use what I can.

By the way, in the above-mentioned Example 1.2, it is also possible to previously drill a hole through the top bar and pour the resin through this through hole.

The top bar repair method of the present invention is carried out by the method described above, and the top bar can be easily repaired without requiring the skilled work of manually applying and tapping out the screws 9 as in the past.

In addition, when the conventional top bar and bait fat layer are integrated and heat-cured, or when the resin layer is cut after being shaped, the top bar is distorted and accuracy is reduced, but the top needle Since the fabric attachment surface and the mouth layer are cured at room temperature without being bonded, a top needle fabric attachment surface of extremely high quality can be obtained.

In addition, even when re-adjustment is necessary, if the resin adheres to the top bar, it takes a lot of effort to remove plum fat, but in the present invention, it does not come into contact with the surface to which the top needle cloth is attached. Since the ik film is formed, the resin layer can be easily removed from the top bar.

In addition, when the dog bar modified by the above modification method is used and the top clothing is attached, the needle point accuracy of the top clothing is good, there is no need to grind it, and a good top needle point can be maintained for a long period of time. This invention has excellent effects such as being able to improve sliver quality.

[Brief explanation of drawings]

Fig. 1 shows the main body of the top bar used in the method of correcting the top knot (-) for a carding machine according to the present invention;
b) Ha! A front view, FIGS. 2 and 3, and FIGS. 4 is a sectional view, FIGS. 5 and 6 show the top/(-) modified according to the present invention, FIG. 5 is a partially cutaway front view, and FIG. 6 is a front view of the resin layer. 1...Top bar body 2...Top needle cloth attaching surface 3...Small hole 41.42...Non-adhesive film 5...Surface plate 6...Hide block 7...Sliding Trend 8... Clamp 9... Block 10... Value layer patent applicant Hiroshi Kanai 2nd Deputy Director Kiyoaki Hayashi. '1, 4., ノ

Claims (2)

[Claims] (1) Apply a release material on the surface plate and dry it to form a non-adhesive film, apply a prescribed lid resin on the non-adhesive film, and drill multiple small holes in the top clothing surface. At the same time, the main body of the top bar coated with a mold release agent is pressed against the resin to fill the small holes with the resin, and then the resin is cured to connect the top bar's clothing attaching surface and the surface plate. A method for modifying a top bar for a carding machine, characterized in that a resin layer of a predetermined thickness is formed between the top bars. (2) A carding machine according to claim 1, characterized in that the resin is made of ultraviolet curable soy sauce, and the resin layer is formed and cured by irradiating the resin with ultraviolet rays from below the surface plate. How to fix the top bar.