JPS5988958A - Pulp fibrilating roll - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a defibrating roll used to separate single fibers from sheet-like or chip-like pulp as a raw material, as related equipment used in the production of disposable diapers and other disposable diapers using pulp as a raw material. ◇ Conventionally, this type of defibrating roll has been constructed by driving a bottle into a piece of wood and attaching it to the surface of a cylindrical roll such as a cylinder or licker-in, or a flexible band saw-shaped roll. A defibrating roll is seen in which the strip is wound around the IftJ circumference of the roll to form part m.

However, these defibrating rolls are used by fixing a bottle or bandsaw-shaped strip with the m part and tooth tips formed on a cylinder, licker-in, etc. roll, so assembly requires polishing and grinding to improve accuracy later. However, the cylindrical accuracy of the tip of the tooth relative to the rotation axis is not sufficient, and the winding method has the drawback that when rotating at high speed, the winding becomes difficult and accidents occur, so the 101 rotation speed does not increase and efficiency is poor. .

1. If you chew on a foreign object and the tip of your tooth is damaged, even if it's only partially, the whole thing will be 1! There is an interlude in that it has to be replaced and repairs are expensive. Furthermore, in response to increasingly severe usage conditions, such as the recent demand for improved defibration ability due to the increased density of pulp, teeth are integrally formed around the entire circumference of the cylinder roll by mechanical cutting. In addition, there are machines in which teeth are mechanically machined around the circumference of a disk, and multiple sheets are laminated and assembled in the axial direction to form a roll body.However, in the former case, the cylinder roll is machined in one piece Draw machining has the disadvantages that the machines that can process it are limited due to the size, the machining cost is high, the tooth tip cannot be obtained in a predetermined shape, and even the slightest damage to the tooth tip can make it unusable. Furthermore, in the latter 1*layer assembly, it is difficult to achieve high tooth precision between the laminated plates with rolls, and there is a step difference, which makes it impossible to finish by grinding after the first layer.

The present invention eliminates these various drawbacks and drawbacks, and is a complete tooth plate consisting of a tooth portion with a tooth tip on the upper part and a fixed part on the lower part that engages with a presser foot and fixes it on the roll. The tooth tips are stacked in parallel so that they are spaced at regular intervals, and the surface of the cylindrical roll is tilted in the axial direction and downward using a presser foot. From lll1.
By arranging the tooth plate so that it has an angle, the tooth plate is securely fixed to the cylindrical roll body, and even under severe operating conditions of high speed rotation and high load, [119] will float. To provide a pulp defibrating roll that is extremely easy and economical to maintain, has improved defibrating ability, and can easily replace tooth plates even if the rim is partially damaged. be.

Embodiments of the present invention will be explained below with reference to the drawings. 0 Embodiment FIG. 1 is a front view of a pulp defibrating roll which is an embodiment of the present invention, and FIG. 2 is a cross-sectional view thereof, as a 91 cylindrical roll. A cylinder roll 1 is used, and concave grooves 4 inclined at an angle of torsion (131) relative to the axis 3 in the direction of the axis 2 are provided at equal intervals on the outer circumferential surface of the cylinder roll 1, so that the cylinder roll surface is formed into an uneven shape.

The concave groove 4 is held down and the full fitting fixing part is used, and the convex part is used as the attachment fA5 of the tooth plate connecting body. Next, by punching a steel band such as carbon steel or alloy steel, or by using ceramic as a raw material, two plates 9 having a tooth part 7 having a tooth tip 6 at the upper part and a fixing part 8f at the lower part are made. The fixing portion 8 is adapted to engage with a presser foot 13 for fixing onto the cylinder roll 1 in a dovetail or concave-convex relationship.

A fitting groove 10 is provided at the bottom of the above number of teeth as necessary, and the NIS 8 is fixed in the thickness direction T as shown in Fig. 3.
It is formed with a protrusion ta) f: on one side. Such tooth plates 9'ft are arranged in parallel and stacked in the thickness direction, and the temporary fixing member 11 is fitted into the fitting groove 10 and enlarged so that the tooth plates are closely arranged in parallel in the thickness direction, and the tooth tips are arranged at a constant pitch W. The tooth plate connecting body 12 is formed in parallel to prevent the tooth plates from separating in number and to facilitate handling.

The above-mentioned toothed plate connecting body μ cylinder roll is installed by placing it on the part 5 and then tightening the bolt 14 in the engaged state by fitting or pushing the presser foot 13, and fixing it to the cylinder roll with the helix angle pt. In addition, pull-out stop plates 15 are fixed to both sides of the cylinder roll 1 to prevent the toothed plate connecting body 12 from coming off in the axial direction, thereby forming a pulp defibrating roll.

When tightening the presser foot 13, the presser foot will be twisted around the circumference p of the shaft in accordance with the helix angle, and since tightening the bolt requires a large force, the presser foot should be adjusted in advance. It is best to form the threads at an angle. When installing the temporary link, fit a presser foot into each groove of the cylinder roll in advance and secure it with bolts, then tighten the link. Installation (= After inserting the tooth plate connecting body into the dovetail or uneven space formed on the I-shaped part 5, the tooth plate connecting body may be completely fixed by tightening the bolts, or Without forming the tooth plate continuous body, the required number of tooth plates T may be sequentially pushed into the space of the above-mentioned Il or unevenness.Furthermore, the installation of the tooth plate continuous body 12 is shown in FIG. When looking at the tip of the tooth in the circumferential direction, if there is a space between the teeth, unevenness will occur during defibration. The tooth plate connecting body 12 is arranged so that the tooth tips 6 are sequentially shifted in the axial direction, and the imaginary line connecting the tooth tips sequentially in the circumferential direction from the first fixed end forms a lead angle. is preferable. By fixing the toothed plate connected body to the cylinder roll with a helix angle (B), the tooth tip 6 of the υ toothed plate can be sharply cut, and the lead angle (4) can be set so that the lead angle (4) is set at a helix angle (B). The tips of the teeth can be applied uniformly to sheet pulp or chips.

Example 2 Fig. 4 A) and Fig. 5 K) ('') are examples of the tooth plate continuous body used in the Nomalp defibrating roll of the present invention.
4) (Illll) is a fixing 1t having a shape that engages with a presser foot for fixing to a cylinder roll at the lower part of a tooth plate 9 made of carbon steel or alloy CI.
ll 8 and bottom! IVISK v-shaped fitting groove 1
Similarly to the tooth plate with 0, spacers 16 with all fitting grooves are arranged in parallel in alternating νg contact with the bottom, and the fitting grooves 10 are made of steel, aluminum or synthetic resin flat plates, etc. The temporary fixing member 11 is fitted to complete the tooth plate continuous body.0 The m portion 7 of the tooth plate is coated with hard chrome plating, ceramic coating, or a hard metal carbide or diffusion layer. Processing that further improves wear resistance through formation of carbon, sulfurization, ¥ ratio treatment, etc.? You can also apply it.

Fig. 5)-(b) is made by mechanical cutting of carbon steel or alloy steel so that lIl\ parts 7 with tooth tips 6 on the upper part are arranged in parallel at a constant pitch W, and the lower part 8 is continuous. For fixing to the cylinder roll with the body! A tooth plate with a continuous tooth plate that is continuous and integral. l! A structure 12 was formed. Such a toothed plate connection body can also be fixed by fitting into a dovetail groove 17 provided on the outer circumferential surface of the cylinder roll 1, as shown in FIG.

Example Similar to Example 1, 1'IJ was applied to the outer peripheral surface of the cylindrical roll.
ff cylinders 4 are arranged at equal intervals of 11 tl, and the lower part of the tooth part 7 having the tooth tip 6 at the top is attached to the cylinder roll 1 with the convex part as the attachment part 5 of the tooth plate connecting body, as shown in FIG. High, ring-shaped fixing part 8
The tooth plate 9 is completely formed, and the presser foot 18 that engages with the one-shaped fixing part 8 is tightened and fixed with the configurations L, yyl +-14. It has a shape that makes the fixation on the cylinder roll even more reliable and safe. Further, FIG. 8 shows a pulp defibrating roll in which the m part 7 and the fixing part 8 of the tooth plate are all triangular in shape and have an uneven shape, and the presser foot 18 that engages and fixes between the adjacent tooth plates is configured in an equal shape. did.

The present invention has the above-mentioned configuration, so that it is possible to assemble the continuous body of tooth plates to a cylindrical roll, such as a cylinder or licker-in, by grinding it even after fixing it, greatly improving the cylindrical precision between the tooth tips, and increasing the speed. It became possible to operate with rotation. 'I! In addition, high-speed 1JJ rolling-C also prevents lifting because the tooth plate is securely and firmly tightened to the cylindrical roll due to the dovetail or uneven engagement relationship between the tooth plate connecting body and the presser foot. Therefore, there is no risk of inoculation, and the lead angle can be adjusted very easily. Furthermore, even if damage occurs, it is only necessary to remove the tooth plate connecting body and replace the damaged tooth plate by -1'N, and the maintenance cost is only 9 yen, and it is easy to handle.

Therefore, this invention has various effects such as being able to cope with severe conditions such as increasing the pulp's Mp and increasing the efficiency of processing.

[Brief explanation of drawings]

Fig. 1 is a city view showing one embodiment of the present invention, Fig. 2 is a sectional view along the line x-x' of Fig. 1, and Fig. 31 is a front view of the tooth plate connected body shown in Fig. 2. , FIGS. 4 and 5 A) and CO) are a side view of the tooth plate used in the pulp defibrating roll of the present invention, and a front view (B) of the tooth plate connected body, respectively, and FIG. 6 is the same. A cross-sectional view showing one example of a structure for fixing the tooth plate-connected body to the cylinder roll, and FIGS. 7 and 8 are cross-sectional views showing other embodiments of the same tooth plate-connected body □ fixing structure, respectively. 1...Cylinder roll 2,...Shaft 3...Shaft holder 4...Concave groove 5...Mounting part 6...Tooth tip 7...M part 8...Fixing part 9 ... Tooth plate 10 ... Fitting groove 11 ... Temporary fixing member 12 ... Tooth plate connecting body 13 ... Presser foot 14 ... Bolt 15 ... Removal stop plate 16 ... ... Spacer 17 ... Dovetail groove 18 ... Presser foot Patent applicant Hiroshi Kanai Yoshiyoshi Toshihito Kiyoaki Hayashi Figure 1 m1 (Ron/, /) Gun16 tJi7JI! J Figure i

Claims (6)

[Claims] (1) A toothed plate is made by connecting an N plate, which has a toothed part with a tooth tip on the upper part and a fixing part for fixing it to the surface of a cylindrical roll on the lower part, so that the toothed parts are arranged in parallel in the thickness direction at regular intervals. The pulp fiber opening is characterized by forming a continuous body, and fixing the tooth plate continuous body to the outer peripheral surface of a cylindrical roll parallel to the axial direction or at an angle at a predetermined distance of 1!4I. Rules for use. (2) The toothed plates of the plate-connected body are arranged sequentially from the end of the cylindrical rail so as to have a lead angle in the circumferential direction. Reel for pulp defibration. (3) The fixed part of the tooth plate is configured in a shape that engages with the presser foot in a dovetail or uneven relationship and is fixed to the cylindrical roll.
A roll for pulp defibration according to claims 1 and 2. (4) The tooth plate connecting body has a fitting groove at the bottom and can be temporarily fixed together by fitting and press-fitting a temporary fixing member.Claims 1, 2 and 2 of the claims The roll for pulp defibration according to item 3. (5) A roll for pulp WIIIli according to items 1, 2, and 4, wherein the tooth plate is made of carbon steel, alloy 6, or ceramic. (6) The valve defibration roll according to item 1, item 2, and item 4, wherein the tooth plate connecting body is formed by inserting a spacer between adjacent tooth plates.