KR100786395B1 - Pressing machine having special roller assembly for metallic straps - Google Patents

Abstract

The present invention relates to a rolling machine having a roller assembly for manufacturing a metal thin plate, wherein a rolling machine for rolling a precision metal thin plate such as an electrode material of a secondary battery, wherein the rolling machine is erected on the base 1 to perform a plurality of rolls. Roller chain roller assembly (R), reciprocating feed and roll winding portions (10, 11) for suspension support supported on both ends of the roller assembly (R), the roll winding (10, 11) and the roller assembly A motor (M) for power feeding (R), a controller which is an electrical device for feeding control of the roll windings (10, 11) and the roller assembly (R), wherein the roller assembly (R) is It has a lower roller assembly RL and an upper roller assembly RU installed inside an upright frame 3 of a roughly “c” shape fixed on the base 1, and the lower roller assembly RL has a roller shaft. Lower part while being supported by plate 31 It is a fixed assembly, the upper roller assembly (RU) is axially supported by the upper roller shaft plate 32 while the whole is guided up and down while the shock absorbing spring (36) up and down along the gap adjusting screw shaft (33, 33 ') Characterized in that it is a plurality of roller assembly which is movable while intervening.

Secondary Battery, Electrode, Metal Sheet, Cold Rolling, Roller Assembly

Description

Pressing machine having special roller assembly for metallic straps}

BRIEF DESCRIPTION OF THE DRAWINGS The schematic explanatory drawing for demonstrating the problem of the roller used for the conventional rolling mill.

Figure 2 is a side view of the configuration of a rolling mill having a roller assembly for producing a metal sheet of the present invention.

3 is a front view of FIG. 2;

4 is an enlarged partial view of FIG. 2 showing an enlarged roller assembly of the present invention;

5 is an enlarged partial view of FIG. 3 showing an enlarged view of the roller assembly of the present invention; FIG.

* Description of the symbols for the main parts of the drawings *

1: base (of rolling mill)

R: Roller Assembly

10,11: roll winding

M: Motor

The present invention relates to the provision of a rolling mill having a roller assembly suitable for use in the rolling processing of various kinds of metal thin plates, particularly for the production of an electrode material which is preferably a metal strip such as a secondary battery.

BACKGROUND OF THE INVENTION A process for manufacturing various kinds of metal sheets and metallic strips is required in the precision machinery and application electronic fields.

In particular, recently, secondary batteries having various metals such as lithium electrodes, lithium oxide electrodes, nickel electrodes, nickel oxide electrodes, etc. as anodes or cathodes have been developed and widely used, and electrodes for secondary batteries are usually various metals such as nickel and lithium. Is stretched and developed into a strip shape, and cut into a predetermined size and shape for use.

Therefore, a process of manufacturing a metal strip of a desired thickness by processing a metal strip of a raw material provided by a rolled roll wound by a material supplier is required, and a rolling mill for secondary battery electrodes and a roller used in the rolling machine are required. The assembly requires a configuration that is significantly different from that of conventional metal rolling mills.

In other words, as shown in Fig. 1 showing the roller configuration of the conventional rolling mill, the roller R1 is subjected to the work reduction of the metal strips S1 and S2 passing through the pair of rollers R1 and R2. Rotation of the drive shaft for driving R2 and friction between the metal strips S1 and S2, roundness of the rollers R1 and R2, vibration of driving power for driving the rollers R1 and R2, rollers R1 and R2 Depending on the mechanical machining error of the shaft supporting

Undesirable fluctuations in the y- and z-axes are induced, and these fluctuations vary the thickness of the stretched metal strip (S2), which negatively affects expensive equipment such as local heat generation or release of uneven current.

This is because the relatively expensive metals such as nickel and chromium to be processed must be stretched and formed with a uniform thickness of considerable precision, so that the distance between the axes must be kept uniform with each rotation, and the movement of the shaft in a direction other than the stretch shaft should be suppressed as much as possible. It is.

This is because the electrodes for secondary batteries can be manufactured in the electrodes of secondary batteries having the maximum discharge-charging efficiency only when grains, which are aggregates between atoms of the metal to be stretched, have a certain orientation during the stretching process, so that the rollers used in rolling mills, in particular, rolling mills This is because the management details are precise, such as precise control of the amount of reduction of the assembly, maintenance of the reduction gap, and a constant distance between the axes during rolling.

Such a request for precision rolling is a situation that is required not only for the electrode material of a secondary battery but also for industrial technologies in various fields.

The present invention is designed to meet the rolling mill having a roller assembly for manufacturing a metal sheet or a metal strip as described above, and is applied to strip rolling of metal rolling, in particular, expensive metals, thereby producing an electrode having a uniform thickness and direction. It is intended to provide a possible configuration.

Rolling mill having a roller assembly for producing a metal sheet according to the present invention for achieving the above object;

In the rolling mill for rolling the electrode material of the secondary battery into a strip-shaped body , the rolling mill is a plurality of roller chain roller assembly for standing up on the base to perform rolling, reciprocating feed and winding supported on both ends of the roller assembly A roll winding unit for take-up, a motor for power feeding the roll winding unit and the roller assembly, and a controller which is an electrical device for feeding and controlling the roll winding unit and the roller assembly,

The roller assembly has a lower roller assembly and an upper roller assembly installed inside an upright frame having a roughly "c" shape fixed on the base, wherein the lower roller assembly is axially supported on a roller shaft plate and fixed to a lower portion. It is an assembly, the upper roller assembly is characterized in that the plurality of roller assembly that is movable while being supported by the upper roller shaft plate and the whole guides up and down while interposing the buffer spring up and down along the gap adjusting screw shaft.

The rolling mill having the roller assembly for producing a metal sheet of the present invention together with the accompanying drawings will be described in more detail.

FIG. 2 is a side view of the configuration of the rolling mill to which the roller assembly of the present invention is applied, FIG. 3 is a front view of FIG. 2, FIG. 4 is a partially enlarged view of FIG. 2 showing an enlarged view of the roller assembly of the present invention, and FIG. It demonstrates together as a partial enlarged view of FIG. 3 which shows the roller assembly part enlarged.

The rolling mill (E) of the present invention, which is a structure body constituted upright on the base (1),

The roller assembly part R, which is a main part, is placed in the center as an assembly, and has roll winding parts 10 and 11 as suspensions on both ends for reciprocating feeding and winding, and the roll winding parts 10 and 11 are motors M. Is connected to a chain (not shown), and the forward and reverse rotation is free, and the electrode metal to be reciprocated can be set as desired thickness.

The power transmitted as the electric motor M is transmitted from the shafts 26 and 27 of the shaft cage 25 via the universal joints 20 and 21 which are not shown in FIG. 2 but are disclosed as side views in FIG. 3. It is transmitted with an inclination angle to (R).

CR is a controller which controls the whole drive of the rolling mill E of this invention.

As shown in FIG.

The lower roller assembly RL and the upper roller assembly RU, which are provided inside the upright frame 3 of the outline "C" shape, are configured as a pair of roller assemblies which are relatively variable and can be driven.

The lower roller assembly RL is supported by the roller shaft plate 31 and fixed to the lower part. The upper roller assembly RU is supported by the upper roller shaft plate 32 while being guided up and down. It is movable along the adjusting screw shaft (33, 33 ') via the buffer spring 36 up and down,

The gap adjusting screw shafts 33 and 33 'are rotated by inserting a rotating collet (not shown) into the upper collet shaft hole 34 and manually rotating them to finely move up and down to fix the upper roller assembly (RU) and the lower Since the gap G between the upper main roller UM and the lower main roller LM of the roller assembly RL is finely controlled, the rolling ratio of the electrode metal of the secondary battery to be processed is controlled.

In the upper roller assembly RU, the Shanghai copper is relatively adjusted with respect to the lower roller assembly RL, so the upper main roller UM and the lower main roller LM of the roller assembly R are moved from the motor M. It is desirable to be power-connected as the universal joints 20 and 21 to absorb the clearance along the rise and fall of the upper roller assembly RU.

The configuration of the lower roller assembly RL and the upper roller assembly RU in which a plurality of rollers are assembled in a respective manner will be described.

As enlarged in FIG. 4,

The upper roller assembly RU and the lower roller assembly RL are axially supported by shaft supports such as bearings on the roller shaft plates 31 and 32, respectively, and are processed into cemented carbide as roller shafts having a predetermined width B. By having the main roller UM and the lower main roller LM, these rollers are used as actual rolling rollers.

As shown in the upper roller assembly RU and the lower roller assembly RL, the first and second rollers RU1 and RL1 and the second and second rollers RU2 and RL2 also have widths B and rollers at both ends. It is provided while being supported by the shaft plates 31 and 32, and is in point contact with the upper main roller UM and the lower main roller LM with a predetermined contact angle a in cross section.

Accordingly, the upper main roller UM-first shaping roller RU1 and the second shaping roller RU2 constitute the upper roller assembly RU, and the lower main roller LM-first shaping roller RL1. The second shaping roller RL2 constitutes the lower roller assembly RL, respectively.

The first shaping rollers RU1 and RL1 and the second shaping rollers RU2 and RL2 can be reduced in cost by processing heat-treated iron-based materials even if they are not cemented carbide, and there are no problems in operation.

As the configuration of the plurality of rollers described above, the first shaping rollers RU1 and RL1 and the second shaping rollers RU2 and RL2 are continuous point-wise point contact along the axial direction of the roller, that is, line contact in the entire longitudinal direction. Each of the upper main roller UM and the lower main roller LM is configured to suppress mechanical deformation due to torque during rotation as much as possible.

The above-mentioned first shaping rollers RU1 and RL1 and the second shaping rollers RU2 and RL2 are formed on roller shaft plates 31 and 32 at both ends, the shaft portions of both ends of which have a width B of the frame 30, respectively. Mounted,

More preferably, the shaft cages 37 of the roller shaft plates 31 and 32 are mounted on the shaft cages 37 to support the shaft portions of both ends of the first and second rollers RU1 and RL1 and RU2 and RL2. While both ends of the shaft are accommodated,

 By forming the distance between the axes by the adjusting screw 35 in the vertical direction with respect to any one or more axis centers of the first shaping roller (RU1, RL1) and the second shaping roller (RU2, RL2), the first shaping It is preferable to make it possible to vary the contact pressure of the rollers RU1, RL1 and the second shaping rollers RU2, RL2 to the upper main roller UM and the lower main roller LM.

As a structure mentioned above,

The lower roller assembly RL and the upper roller assembly RU are pulled by pulling the metal strip winding roll r1 supplied from the manufacturing plant to be processed to form the electrode of the secondary battery on the roll winding section 10 of the rolling mill E. Rolling is started while sandwiching between the upper main roller UM and the lower main roller LM of), and rolling the rolled metal strip S on the opposite metal strip winding roll r2 .

In this operation, the collet is inserted into the collet shaft hole 34 above the clearance adjusting screw shafts 33 and 33 ' to control the thickness of the strip to be processed, and between the metal strip winding roll r1 and the metal strip winding roll r2. By reciprocating the metal strip (S) suspended in the directionality of the metal atoms can be uniformly processed.

In the above-described processing, the rolling mill having the roller assembly for producing a metal sheet of the present invention constitutes the roller assembly portion R,

The lower roller assembly (RL) and the upper roller assembly (RU) are separated from each other, and each of the upper roller assembly (RU) and the lower roller assembly (RL) is an upper main roller (UM)-a first fixed roller (RU1)-a second The shaping roller RU2 constitutes the upper roller assembly RU, and the lower main roller LM-the first shaping roller RL1 and the second shaping roller RL2 form the lower roller assembly RL. In the stretching process, undesired deformation to the y, z axis due to mechanical torque, friction, mechanical machining error of the shaft part is suppressed as much as possible, so that the electrode material of the secondary battery with uniform directionality can be processed.

Since continuous rolling is possible, it has utility such as useful for mass production.

The rolling mill which has the roller assembly for metal thin plate manufacture of this invention as mentioned above,
Compared to the conventional metal strip rolling apparatus , the electrode material of the secondary battery having a fine thickness can be manufactured, and the electrode material having the uniform directionality can be manufactured, thereby increasing the efficiency of the secondary battery.

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Claims (3)

In the rolling mill having a roller assembly for producing a metal sheet, The rolling mill is a plurality of roller chain roller assembly (R) for upright rolling on the base (1), for reciprocating feeding and winding that is driven and supported across both ends of the roller assembly (R) Roll winding parts 10 and 11, a motor M for power feeding the roll winding parts 10 and 11, and the roller assembly part R, and the roll winding parts 10 and 11 and the roller assembly part R. It includes a controller that is an electrical device for controlling the feeding, The roller assembly R has a lower roller assembly RL and an upper roller assembly RU which are installed in an upright frame 3 of a “c” shape fixed on the base 1. The lower roller assembly RL is an assembly fixed to the lower part while being supported by the roller shaft plate 31, and the upper roller assembly RU is guided up and down while being supported by the upper roller shaft plate 32. Rolling machine having a roller assembly for producing a metal sheet, characterized in that the plurality of roller assembly which is movable while interposing the buffer spring (36) up and down along the gap adjusting screw shaft (33, 33 '). The method of claim 1, The lower roller assembly RL and the upper roller assembly RU of the roller assembly R are The roller shaft plate (31, 32) has an upper main roller (UM) and a lower main roller (LM) which are processed by cemented carbide as a roller shaft supported by the shaft support having a bearing, The upper roller assembly RU and the lower roller assembly RL are provided with first and second rollers RU1 and RL1 and second and second rollers RU2 and RL2 supported by roller shaft plates 31 and 32 at both ends thereof. Pressurizing the upper main roller UM and the lower main roller LM by contacting the upper main roller UM and the lower main roller LM with a point of contact in cross section with a predetermined contact angle a. A rolling mill having a roller assembly for producing a metal sheet. The method of claim 1, The first shaping rollers RU1 and RL1 and the second shaping rollers RU2 and RL2 are mounted on roller shaft plates 31 and 32 at both ends having a width B of the frame 30, respectively. Both end shaft portions of the first shaping rollers RU1 and RL1 and the second shaping rollers RU2 and RL2 are accommodated in the shaft cage 37 fixed to the roller shaft plates 31 and 32. At least one of both end shaft portions of the first shaping rollers RU1 and RL1 and the second shaping rollers RU2 and RL2 is provided by an adjusting screw 35 installed in a direction perpendicular to an axis center of the upper main roller UM. And a roller assembly for manufacturing a metal sheet, characterized in that the pressing force can be adjusted as the distance between the main rollers and the lower main roller (LM).

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