JPH0970631A - Method and device for adjusting seaming dimension in seaming device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To adjust the secularly changing dimensions of T and Tc, to stabilize a seaming, to improve working efficiency, to save manpower, and to realize excellent seaming of cans different in kinds without changing the seaming roll. SOLUTION: A seaming cam 1 is arranged so that the maximum displacement section (a) of a primary seaming roll is approximately orthogonal to the maximum displacement section (b) of a secondary seaming roll, the intermediate seaming thickness Tc is adjusted by displacing the maximum displacement section of the primary seaming roll in the seaming cam radial direction, and the final seaming thickness T is adjusted by displacing the maximum displacement section of the secondary seaming roll is displaced in the seaming cam radial direction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and device for adjusting a winding size in a winding device, and more particularly to a method and a device for adjusting a winding size which can adjust a distance between a winding roll and a chuck even during operation.

[0002]

2. Description of the Related Art A conventional winding device is constructed as shown in FIGS. 7 and 8, and is held by a lifter 52 and a winding chuck 53 with a can lid 51 placed on a can body 50 (FIG. 8, Figure 9
(A)), primary winding roll 5 provided on the winding head
4 and the secondary winding roll 55 are displaced by the winding cams 49 and 57, and the primary winding roll 54 performs the primary winding up to the state shown in FIG. The roll 55 completes the secondary winding until the final winding shape shown in FIG. 9C is obtained.

In the above-mentioned winding step, if the intermediate winding thickness (hereinafter referred to as Tc dimension) at the end of the primary winding is not proper, the can body is held at the curl tip of the can lid 51 in the secondary winding step. Fifty
Inconvenience such as rubbing the flange surface of
Winding width of final shape in the next winding process (hereinafter referred to as W dimension)
If the winding tightening thickness (hereinafter referred to as T dimension) is not appropriate,
There is a high possibility that the sealability will be lost and leakage will occur.

Therefore, in the conventional winding operation, the roll mounting eccentric shaft 64 is rotated by rotating the adjusting screw 60 provided on the seaming head 63 shown in FIGS. 7 and 8 via the lock nut 59. , The primary winding roll 54 swings as shown by a broken line 54 ', and the chuck 53
The structure is such that the distance between the first winding roll 54 and the primary winding roll 54 can be adjusted. The secondary winding roll 55 can be adjusted in the same manner. Since the deviation amounts of these rolls are uniquely determined by the shapes of the cam 49 and the cam 57, the Tc size and the T size are determined by the distance between the winding roll and the chuck that are initially set. Therefore, the operator uses a gauge or the like to adjust so that all the heads are in the same state.

However, as the temperature of the machine rises with the passage of time due to frictional heat during winding, the Tc dimension, T dimension and W dimension change due to thermal deformation. In particular, the Tc dimension is large in all heads, and the winding tightening tends to be loose.

Therefore, conventionally, the winding operation is interrupted midway and the distance between the chuck 53 and the rolls 54, 55 is readjusted over the entire head, or Tc is waited for from the beginning.
Although the dimensions are set to be as small as possible within the allowable range, the former method interrupts the winding work, resulting in lower work efficiency and troublesome work, and the latter method provides stable winding. There are problems such as difficulty in tightening.

On the other hand, in the can winding process, if the can type is different, the optimum winding roll is selected so that the optimum T size, Tc size and W size can be obtained for the can, and the winding roll shifts. It is desirable to adjust the amount, but in recent years, common tightening has been implemented to improve work efficiency and save labor. That is, different types of cans are wound under the same winding roll and under the same conditions (that is, once set, no adjustment is performed). The common tightening is conventional aluminum DI can and steel D
In the case of I can, there was not much problem.

However, recently, when the stretch draw cans have joined the group, the conditions for common winding have become very narrow. If the conditions that must be adhered to are exceeded, the winding becomes unstable and leakage occurs. May be a can.

[0009]

SUMMARY OF THE INVENTION Therefore, the present invention is intended to solve the above problems of the conventional winding apparatus, and in the winding apparatus, the primary winding roll and the first winding roll for the chuck are provided. The deviation amount of the secondary winding rolls can be changed instantly in a lump, so that the T dimension, T
It can be adjusted to the c dimension during operation or in an extremely short time even if the operation is stopped. The optimum dimension is always secured to stabilize winding performance, improve work efficiency and save labor. A method for adjusting a winding size, which can achieve good winding by instantaneously responding to different types of cans with a common primary winding roll and secondary winding roll, and a method thereof. The purpose is to provide a device.

[0010]

A method for adjusting a winding size in a winding device according to the present invention which achieves the above object is to displace a primary winding roll and a secondary winding roll with respect to a winding chuck. The winding cam has a primary winding roll maximum displacement section that maximizes the deviation amount of the primary forming roll and a secondary winding roll maximum displacement section that maximizes the deviation amount of the secondary winding roll. It is configured to have an angular arrangement of about 90 °, and the first
The intermediate winding thickness Tc in the primary winding process is adjusted by displacing the maximum displacement section of the next winding roll in the radial direction of the winding cam, and / or the maximum displacement section of the secondary winding roll is wound. Second by displacing in the cam radial direction
It is characterized in that the final winding thickness T in the next winding step is adjusted.

As a more specific method, the winding cam includes a primary winding cam having a primary winding roll maximum displacement section and a secondary winding having a secondary winding roll maximum displacement section. It is divided into a winding cam and attached to the winding cam body so that the primary winding cam and the secondary winding cam can be displaced integrally, and the secondary winding cam is attached to the primary winding cam. Displacement with respect to the cam, displacement of the primary winding roll maximum displacement section is performed by integrally displacing the primary winding cam and the secondary winding cam, and The displacement of the maximum winding roll displacement section can be performed by displacing the secondary winding cam with respect to the primary winding cam.

The winding size adjusting device of the present invention which achieves the above method is such that the winding cam for displacing the primary winding roll and the secondary winding roll with respect to the winding chuck is formed by the primary molding. The primary winding roll maximum displacement section which maximizes the roll deviation amount and the secondary winding roll maximum displacement section which maximizes the deviation amount of the secondary winding roll are arranged at an angle of approximately 90 °. And a primary winding cam adjusting means for adjusting the amount of displacement of the primary winding roll maximum displacement section in the winding cam radial direction, and / or the secondary winding roll maximum displacement section. Secondary winding cam adjusting means for adjusting the amount of displacement of the winding cam in the radial direction.

The winding cam has a primary winding roll maximum displacement section which is integrated with the cam body, and a secondary winding roll maximum displacement section. One end of the main body is rotatably attached to a secondary winding tightening cam, and the primary winding tightening cam adjusting means displaces the cam body, and the secondary winding tightening cam adjusting means operates. The second
It is desirable that the next winding tightening cam be displaced.

As a preferred embodiment of the primary winding cam adjusting means, a long groove formed in the cam body, a slider slidably fitted in the long groove, and a circular hole formed in the slirder are rotatably fitted. The cam main body can be configured to swing by rotating the adjustment shaft, which includes a combined eccentric top and an adjustment shaft protruding from the eccentric position of the top.

As a preferred mode of the secondary winding tightening cam adjusting means, a long groove formed in the secondary winding tightening cam, a slider slidably fitted in the long groove, and a circular hole formed in the spoiler. The cam main body can be rocked by rotating the adjusting shaft, which is composed of an eccentric piece that is rotatably fitted to the eccentric piece, and an adjusting shaft that projects from the eccentric position of the piece.

The primary winding cam adjusting means and the second winding cam adjusting means.
The adjustment shaft in the next winding tightening cam adjusting means can be instantaneously and accurately adjusted by rotationally driving it by the servo motor.

Further, as another preferable mode of the winding size adjusting device, the winding cam has a fixed arm protruding radially from an outer peripheral portion of a position substantially symmetrical to the maximum displacement section of the primary winding roll. An end of the fixed arm is rotatably attached to the body of the winding device, the fixed arm is provided with the primary winding cam adjusting means, and the winding cam is provided on an outer peripheral portion of the winding cam. Can be configured so that the secondary winding cam adjusting means is provided so as to rotate about the shaft attachment point of the fixed arm.

As the primary winding tightening cam adjusting means, it is possible to employ a technical means in which a heater for heating the fixed arm causes the fixed arm to expand and contract by thermal deformation. As the second winding cam adjusting means, one end is connected to the connecting arm projecting from the outer periphery of the primary winding roll maximum displacement section side in a substantially right angle direction, and the other end is connected to the main body of the winding device. A technical means may be employed in which a secondary winding tightening cam adjusting lever pivotally mounted on the secondary winding tightening cam adjusting lever is provided, and the secondary winding tightening cam adjusting lever is heated by a heater to be expanded and contracted by thermal deformation.

Further, as the primary winding tightening cam adjusting means, the cam itself is thermally expanded by a heater mounted in the vicinity of the cam groove so that the primary winding tightening roll maximum displacement section is displaced in the cam radial direction. Technical means can be adopted.
Similarly, as the secondary winding tightening cam adjusting means, the cam itself is thermally expanded by a heater attached near the cam groove to displace the secondary winding tightening roll maximum displacement section in the cam radial direction. Can be adopted. A simpler adjusting mechanism is obtained by adopting the above technical means of directly thermally expanding the cam itself.

It is desirable that the above-mentioned winding size adjusting device is provided with both the primary winding roll adjusting means and the secondary winding roll adjusting means, but either one of the winding rolls is provided. It is also possible to have only the adjusting means, and the other one to adjust the distance between the winding roll and the chuck by a method similar to the conventional one.

[0021]

[Function] The deviation amount of the primary winding roll and the secondary winding roll which determines the Tc dimension which is the intermediate winding thickness and the T dimension which is the final winding thickness in the primary winding is It is governed by the trajectory of the winding cam. Therefore, the displacement amount of each winding roll can be controlled by displacing the winding cam. The Tc dimension follows the primary winding cam and the T dimension follows the secondary winding cam. The primary winding cam and the secondary winding cam are usually integrated, and the deviation amounts of the primary winding roll and the secondary winding roll cannot be independently controlled. By arranging the maximum displacement section of the winding roll and the maximum displacement section of the secondary winding roll at an angle of about 90 ° with respect to the center of the winding cam, the Tc dimension and It is possible to control the T dimension separately.

That is, in order to correct the looseness of the Tc dimension that occurs with the passage of time, the Tc dimension can be adjusted by moving the cam position, which is the maximum displacement section of the primary winding roll, so as to push it outward. Tightens. Further, when correcting the looseness of the T dimension, the T dimension is tightened by moving the cam position, which is the maximum displacement section of the secondary winding roll of the secondary winding cam, so as to be pushed toward the cam center side.

As a moving method, the primary winding cam and the secondary winding cam are attached to the winding cam body so that they can be integrally displaced, and the secondary winding cam is attached to the primary winding cam. When it is configured to be displaceable with respect to the cam, the displacement of the primary winding roll maximum displacement section is performed by integrally displacing the primary winding cam and the secondary winding cam. Two
The displacement in the maximum displacement section of the next winding roll can be performed by displacing the secondary winding cam with respect to the primary winding cam.

In this case, by adopting the primary winding tightening cam adjusting means and the secondary winding tightening cam adjusting means according to claims 5 and 6 as the displacement mechanism, rotation of the shaft for rotating the eccentric piece By controlling the angle, the deviation amounts of the primary winding roll and the secondary winding roll can be adjusted separately within the range corresponding to the eccentricity of the eccentric top. Further, since the shaft can be rotated in a short time by an appropriate actuator, the work can be performed without interruption even during the winding work, a high quality winding state can be always maintained, and the work efficiency can be improved. It is possible to reduce labor as well as to save labor.

Further, by constructing the winding cam as in claim 8, and adopting the configurations of claims 9 and 10 as the primary winding cam adjusting means and the secondary winding cam adjusting means. It is possible to freely control the maximum deviation amounts of the first winding roll and the second winding roll by utilizing the thermal deformation mechanism. In this case, compared with the case of the mechanical eccentric top, the response is slow, but the structure is simple.

Further, by adopting the structure of claims 10 and 11, the cam itself in the maximum displacement section of the primary winding roll and / or the maximum displacement section of the secondary winding roll is directly heated to cause thermal expansion. Therefore, the maximum deviation amount of the primary winding roll and / or the secondary winding roll can be reliably adjusted by a simpler mechanism.

[0027]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a schematic plan view of a winding cam of a winding device according to an embodiment of the present invention. The winding tightening cam 1 of the present embodiment is composed of a primary winding tightening cam 3 that is integrated with a winding tightening cam body 2 and a semi-annular secondary winding tightening cam 4. The tightening cam is pin 6 against the primary winding tightening cam.
It is attached to the winding cam main body 2 so as to be swingable around.

The entire winding cam 1 is pivotally attached to the main body of the winding device so as to be swingable around a pivot 7. On the surfaces of the primary winding cam 3 and the secondary winding cam 4, cam grooves 8 and 9 for displacing the primary winding roll and the secondary winding roll to the winding chuck side are continuous. Then, it is formed in an annular shape as a whole. The cam groove 8 of the primary winding cam 3 is projected to the outermost side in the section a shown in FIG. 1, and in this section the primary winding roll is displaced to the most winding roll side, The amount of deviation of the winding roll is maximized, and the amount of deviation determines the Tc dimension at the end of the primary winding. Also, the second
The next winding roll is projected to the innermost side in the section b, and the deviation amount of the secondary winding roll becomes maximum in this section, and the T dimension of the final winding shape is determined by the deviation amount. Therefore, the section a and the section b are the primary winding roll maximum displacement section and the secondary winding roll maximum displacement section, respectively, and both sections are, as shown in FIG. It is arranged so as to form an angle of approximately 90 ° with respect to the center.

Therefore, by swinging the whole winding cam about the pivot 7, the section a can be displaced in a substantially radial direction from the center of the seamer head, and the deviation amount of the primary winding roll can be reduced. Can be adjusted. Further, if the secondary winding cam is swung around the pin 6 while the primary winding cam is fixed, the section b can be displaced from the center of the seamer head in a substantially radial direction. The deviation amount of the secondary winding tightening cam can be adjusted independently. In the present embodiment, the primary winding cam and the secondary winding cam can be adjusted in a short time and easily by the following adjusting means.

In the embodiment shown in FIG. 1, as the primary winding cam adjusting means 10 for displacing the entire winding cam 1, in the embodiment shown in FIG. 11 is formed, and a slider 12 having a round hole formed in the center of the long groove is displaceably fitted. Further, an eccentric piece 14 having a shaft 13 protruding at an eccentric position is rotatably formed in the round hole. The shaft is connected to an appropriate actuator, for example, a servomotor attached to a fixed portion of the body of the winding device, and is rotationally driven at that position. By using a servo motor as the actuator, the rotation angle of the eccentric top
That is, the amount of displacement of the primary winding cam can be accurately controlled, which is desirable, but not limited to this, and other actuators can be adopted. Further, instead of using the actuator, the upper part of the shaft 13 may be supported by a bearing provided on the main body of the wind-up device, and a dial may be provided at the protruding end to rotate the shaft manually.

Further, in order to swing the secondary winding cam 4 about the pin 6 with respect to the primary winding cam, the outer periphery of the surface of the secondary winding cam substantially symmetrical to the pin 6 is positioned. Part, the first
Secondary winding cam adjusting means 1 similar to next winding cam adjusting means
6 is provided. In the secondary winding tightening cam adjusting means,
Reference numeral 17 is an elongated hole, 18 is a slider, 19 is a shaft, and 20 is an eccentric top, and its operating mechanism is similar to that of the primary winding cam adjusting means, so detailed description thereof is omitted.

The winding device of the present embodiment is configured as described above, and, for example, T which occurs with the passage of the winding work time.
When it is desired to correct the looseness of the c dimension, the actuator of the primary winding cam adjusting means is operated to rotate the shaft 13, so that the winding cam swings about the pivot shaft 7 by the eccentric amount of the eccentric top. Then, the section a is displaced with respect to the center direction of the seamer head, and the deviation amount of the primary winding cam is adjusted accordingly. For example, when the eccentric piece 14 is eccentric by the eccentric amount δ as shown in FIG. 3 (f) and the state of the eccentric piece in FIG. 1 is in the state shown in FIG. 3 (a), the shaft 13 moves from this state. When rotated 90 ° clockwise, the figure (b)
As shown in, the cam body 2 swings clockwise by an angle corresponding to the eccentricity amount δ.

Therefore, as a result, the section a of the primary winding cam is pushed outward, and as a result, the shank shaft 62 shown in FIGS. 5 and 6 rotates counterclockwise, and the primary winding cam. Is closer to the winding chuck chuck side, the deviation amount of the primary winding cam is increased, the Tc dimension is tightened, and the looseness of the winding thickness in the primary winding can be corrected. Further, by further rotating the shaft 13 clockwise by 90 ° from the state shown in FIG. 3 (b), the state shown in FIG. 3 (c) is obtained and the winding cam body 2 returns to the state shown in FIG. 3 (a). Further, when it is further rotated by 90 °, the winding cam main body rotates counterclockwise by the amount of eccentricity δ as shown in FIG. 7D, and the deviation amount of the primary winding cam can be reduced.

By controlling the rotation angle of the shaft 13 as described above, the deviation amount of the primary winding cam can be adjusted within a range commensurate with the eccentricity amount δ of the eccentric top.
The rotation of the shaft 13 can be performed at a short time by an appropriate actuator, so that the work can be performed without interruption during the winding operation.

By stopping the rotation of the shaft 13 at a predetermined angle, a predetermined amount of deviation of the primary winding cam is determined. Then, in order to adjust the T dimension in the final winding shape, the shaft of the secondary winding cam adjusting means in FIG. 1 is rotated to perform the second winding as in the case of the primary winding cam adjusting means. The next winding tightening cam swings around the pin 6 according to the rotation angle of the shaft, and displaces the maximum displacement section b of the cam groove of the secondary winding tightening cam to adjust the pushing amount of the secondary winding tightening cam. can do.

In this case, since the primary winding cam is fixed at the position adjusted by the primary winding cam adjusting means and does not move, only the secondary winding cam is adjusted independently. Therefore, by appropriately controlling the primary winding tightening cam adjusting means and the secondary winding tightening cam adjusting means, the pushing amounts of the primary winding tightening cam and the secondary winding tightening cam can be arbitrarily adjusted. .

FIG. 4 shows another embodiment of the present invention. In the present embodiment, the winding cam body and the secondary winding cam are displaced by using the thermal deformation mechanism. In the drawing, 30 is a winding cam body, 31 is a primary winding cam, and 32 is a secondary winding cam, which are the same as those in the above-described embodiment. The winding cam main body 31 is a lever 3 for displacing the primary winding cam, which also serves as a fixed arm from the outer peripheral portion thereof in a substantially symmetrical position with the maximum displacement section a of the primary winding cam sandwiching the center.
3 protrudes in the radial direction, and the tip end portion thereof is fixed to the fixing portion of the body of the tightening device by the fixed shaft 34. On the other hand, the first
On the side of the maximum displacement section a of the next winding cam, the connecting arm 35 projects at a position symmetrical to the lever 33 for displacing the first winding cam.
The secondary winding cam displacement lever 36 is connected by a connecting pin 37 so as to intersect the tip portion thereof at a substantially right angle. The other end of the secondary winding cam displacement lever is
It is fixed by a fixed shaft 38 to the fixed portion of the body of the winding device.

Further, heaters 40 and 41 are provided on the outer peripheral portions of the primary winding cam displacement lever 33 and the secondary winding cam displacement lever 36 so that the heaters can heat these levers. It has become.

Reference numeral 42 denotes a second winding tightening cam adjusting means for displacing the second winding tightening roll to the inoperative position, which is the primary winding tightening cam adjusting means or the secondary winding tightening cam in the above embodiment. Since the adjusting means is similar to the adjusting means, detailed description thereof will be omitted.

In the winding apparatus of the present embodiment having the above-described structure, when the Tc size is loosened during the winding operation, the heater 40 is operated to move the primary winding cam displacement lever. By heating the first winding cam, the lever for displacing the primary winding cam extends in the axial direction due to thermal expansion, so that the entire winding cam is pushed to the maximum displacement section a side of the primary winding cam. As a result, the maximum displacement section a side of the primary winding cam moves outward, so that the amount of the primary winding roll becomes larger. The Tc dimension can be adjusted.

If the T dimension becomes loose,
By energizing the heater 41, the secondary winding cam displacement lever is heated and expanded by thermal expansion, and the connecting arm end 35 is pushed in the right angle direction in FIG.
0 rotates clockwise around the fixed shaft 34. As a result, the secondary winding roll maximum displacement section b is pushed toward the center of the winding cam, and the amount of deviation of the secondary winding roll can be increased. At that time, the primary winding roll also rotates together, but since the primary winding roll maximum displacement section is only displaced in the tangential direction, it has an effect on the deviation amount of the primary winding roll. Is minute, and there is no fear that the adjustment position of the primary winding roll is disturbed.

5 and 6 show still another embodiment of the winding size adjusting device according to the present invention. In FIG. 5, the cam itself is directly expanded by the primary winding cam adjusting means for adjustment. FIG. 6 shows the secondary winding cam adjusting means that adopts means for adjusting the cam itself by directly thermally expanding the cam itself. In the drawings, the same members as those in the above-described embodiment are designated by the same reference numerals, detailed description thereof will be omitted, and only the features that are different from the above-described embodiment will be described.

In the embodiment shown in FIG. 5, the winding cam body 43 is fixed to the fixing portion of the winding device body by the cam fixing bolts 44, 44, and the cam body on the maximum displacement section side of the primary winding roll is fixed. A semi-arcuate heater 45 is attached near the cam groove. By heating the cam body with the heater 45,
In the cam body, the maximum displacement section side of the primary winding roll expands in the cam radial direction, so that the maximum displacement section of the primary winding roll is displaced in the cam radial direction, and the maximum deviation amount of the primary winding roll is Can be adjusted. In the embodiment,
The secondary winding tightening cam adjusting means employs the same means as the embodiment shown in FIG.

In the embodiment of FIG. 6, as the secondary winding tightening cam adjusting means, a semi-arcuate heater 4 is provided in the vicinity of the cam groove of the secondary winding tightening cam 46 on the maximum displacement section side of the secondary winding roll.
7 is attached. The second winding tightening cam 46 by the heater 47
By heating the second winding cam, the secondary winding roll maximum displacement section side expands in the cam radial direction on the side of the secondary winding roll maximum displacement section, whereby the secondary winding roll maximum displacement section is displaced in the cam radial direction. The maximum deviation amount of the next winding roll can be adjusted. In addition, in the embodiment, as the primary winding cam adjusting means, the same means as the embodiment shown in FIG. 1 is adopted.
Further, in the present embodiment, as the second winding tightening cam adjusting means,
Secondary winding cam adjusting means 1 similar to the embodiment shown in FIG.
6 is also provided, but of course, the secondary winding tightening cam adjusting means 16 may not be provided, and the secondary winding tightening cam may be directly fixed to the cam body.

Although various embodiments of the present invention have been described in detail above, the present invention is not limited to the above embodiments, and various design changes are possible. For example, the primary winding cam and the winding cam body may be formed as an integral member, or may be separately configured, or the primary winding cam may be directly provided without the winding cam body. And the secondary winding tightening cam may be connected. Further, the embodiment shown in FIG. 5 is adopted as the primary winding tightening cam adjusting means, and the embodiment shown in FIG. 6 is adopted as the secondary winding tightening cam adjusting means, and both embodiments are combined. May be adopted.

[0046]

According to the present invention, since the deviation amounts of the primary winding roll and the secondary winding roll with respect to the winding chuck can be changed instantaneously, the T dimension which changes with time during winding,
The Tc dimension can be adjusted during operation. Therefore, it is possible to always secure the optimum winding size, stabilize the winding performance, improve the work efficiency, and save labor, and use the common primary winding roll and secondary winding roll. Cans of different types can be wound well.

In addition, the displacement amounts of the primary winding roll and the secondary winding roll can be individually adjusted with a considerable degree of freedom simply by displacing the winding cam in two directions.
It is possible to reliably control the Tc dimension and the T dimension.

By adopting the primary winding tightening cam adjusting means and the secondary winding tightening cam adjusting means according to the fifth and sixth aspects, only by controlling the rotation angle of the shaft for rotating the eccentric piece, The deviation amount of the primary winding roll and the secondary winding roll can be instantly and finely adjusted within a range commensurate with the amount of eccentricity of the eccentric top.

The first aspect of the ninth and tenth aspects
By adopting the secondary winding cam adjusting means and the secondary winding cam adjusting means, the maximum deviation amount of the first winding roll and the second winding roll can be freely controlled by utilizing the thermal deformation mechanism. Yes, the response is slow, but it can be adjusted easily with a simple structure. Further, by adopting the primary winding cam adjusting means and the secondary winding cam adjusting means according to the eleventh and twelfth aspects, it is possible to surely adjust with a simpler mechanism.

[Brief description of drawings]

FIG. 1 is a plan view of a main part of a winding size adjusting device in a winding device according to an embodiment of the present invention.

FIG. 2 is a schematic cross-sectional view taken along the line AA of FIG.

3 (a) to (e) are explanatory views of the operation of the primary winding tightening cam adjusting means shown in FIG. 1, and FIG. 3 (f) is a plan view of relevant parts of the primary winding tightening cam adjusting means. .

FIG. 4 is a plan view of a main part of a winding size adjusting device in a winding device according to another embodiment of the present invention.

FIG. 5 is a plan view of a main part of a winding size adjusting device in a winding device according to still another embodiment of the present invention.

FIG. 6 is a plan view of a main part of a winding size adjusting device in a winding device according to still another embodiment of the present invention.

FIG. 7 is a plan view of a main part of a winding size adjusting device in a conventional winding device.

FIG. 8 is a side view of a main part of a conventional winding device.

9A to 9C are explanatory views showing a can winding process.

[Explanation of symbols]

 1 winding cam 2,43 winding cam body 3,31,49 primary winding cam 4,32,46,57 secondary winding cam 6,7,58 pin 8,9 cam groove 10 primary Winding cam adjusting means 11,17 Long groove 12,18 Slider 13,19 Shaft 14,20 Eccentric piece 33 Primary winding cam displacement lever 34,38 Fixed shaft 35 Connecting arm 36 Secondary winding cam displacement lever 40, 41, 45, 47 Heater 44 Cam fixing bolt 50 Can body 51 Lid 52 Lifter 53 Chuck 54 Primary winding roll 55 Secondary winding roll 56 Secondary winding cam fixing bolt 59 Lock nut

Claims (12)

[Claims] 1. A method for adjusting a winding size in a winding device for winding a can with a primary winding roll and a secondary winding roll, the method comprising: a primary winding roll and a secondary winding roll. The winding cam that displaces the roll with respect to the winding chuck maximizes the displacement amount of the primary forming roll and the displacement amount of the secondary winding roll that maximizes the displacement amount of the primary forming roll. The primary winding step is configured by arranging the maximum displacement section of the secondary winding roll to have an angular arrangement of about 90 ° and displacing the maximum displacement section of the primary winding roll in the radial direction of the winding cam. The final winding thickness T in the secondary winding step is adjusted by adjusting the intermediate winding thickness Tc in step S1 and / or by displacing the maximum displacement section of the secondary winding roll in the radial direction of the winding cam.
A method for adjusting a winding size in a winding device, which is characterized in that: 2. The winding cam is divided into a primary winding cam having a primary winding roll maximum displacement section and a secondary winding cam having a secondary winding roll maximum displacement section. Mounted on the winding cam body so that the primary winding cam and the secondary winding cam can be displaced integrally, and the secondary winding cam is displaced with respect to the primary winding cam. To be able to
The displacement of the primary winding roll maximum displacement section is performed by integrally displacing the primary winding cam and the secondary winding cam, and the displacement of the secondary winding roll maximum displacement section is The winding size adjusting method according to claim 1, wherein the secondary winding cam is displaced by displacing the secondary winding cam with respect to the primary winding cam. 3. A winding size adjusting device in a winding device for winding a can with a primary winding roll and a secondary winding roll, said primary winding roll and secondary winding roll. The winding cam that displaces the roll with respect to the winding chuck maximizes the displacement amount of the primary forming roll and the displacement amount of the secondary winding roll that maximizes the displacement amount of the primary forming roll. A primary that is configured such that the maximum displacement section of the secondary winding roll is in an angular arrangement of approximately 90 ° and that the amount of displacement of the maximum displacement section of the primary winding roll in the radial direction of the winding cam is adjusted. A winding tightening cam adjusting means, and / or a secondary winding tightening cam adjusting means for adjusting the displacement amount of the secondary winding roll maximum displacement section in the radial direction of the winding tightening cam. Winding size adjustment device for machine. 4. The winding cam has a primary winding roll maximum displacement section which has a primary winding roll maximum displacement section, and a secondary winding roll maximum displacement section which is integrated with a cam body. One end of the cam main body is rotatably attached to a secondary winding tightening cam, and the primary winding tightening cam adjusting means displaces the cam main body to adjust the secondary winding tightening cam. The means is the second
The winding size adjusting device according to claim 3, wherein the next winding cam is displaced. 5. The primary winding tightening cam adjusting means is rotatably fitted in a long groove formed in the cam body, a slider slidably fitted in the long groove, and a circular hole formed in the slirder. 5. The winding size adjusting device according to claim 4, wherein the cam body is swung by rotating the adjusting shaft, and the eccentric member is provided with an adjusting shaft protruding from an eccentric position of the eccentric member. 6. The secondary winding cam adjusting means rotates in a long groove formed in the secondary winding cam, a slider slidably fitted in the long groove, and a circular hole formed in the spirder. 5. The winding according to claim 4, comprising an eccentric piece that is fitted so that it can fit, and an adjusting shaft that projects from an eccentric position of the piece, and the secondary winding cam is oscillated by rotating the adjusting shaft. Tightening dimension adjusting device. 7. The winding size adjusting device according to claim 5, wherein the adjusting shaft is rotationally driven by a servo motor. 8. The winding cam has a fixed arm protruding radially from an outer peripheral portion at a position substantially symmetrical to the maximum displacement section of the primary winding roll, and an end portion of the fixed arm is provided in the main body of the winding device. The fixing arm is rotatably attached to the shaft, the primary winding cam adjusting means is provided on the fixed arm, and the winding cam is rotated around the axis of the fixed arm around the outer periphery of the winding cam. 5. The winding size adjusting device according to claim 3, further comprising a secondary winding cam adjusting means for moving the secondary winding cam. 9. The winding size adjusting device according to claim 8, wherein the primary winding cam adjusting means is a heater for heating the fixed arm, and the fixed arm is expanded and contracted by thermal deformation. 10. The second winding tightening cam adjusting means has one end connected to a connecting arm projecting from an outer peripheral portion on the maximum displacement section side of the primary winding tightening roll in a substantially right-angled direction and the other end wound. 9. The winding dimension according to claim 8, comprising a secondary winding cam adjusting lever pivotally mounted on the body of the tightening device, and a heater for heating the secondary winding cam adjusting lever to expand and contract by thermal deformation. Adjustment device. 11. The primary winding tightening cam adjusting means thermally expands the cam itself with a heater mounted near the cam groove to displace the primary winding tightening roll maximum displacement section in the cam radial direction. The winding size adjusting device according to claim 3 or 4, which is adapted to be carried out. 12. The secondary winding cam adjusting means thermally expands the cam itself with a heater mounted near the cam groove,
5. The winding size adjusting device according to claim 3, wherein the second winding roll maximum displacement section is displaced in the radial direction of the cam.