JPH06106492A - Manufacture of narrow rubber sheet and device therefor - Google Patents

Abstract

PURPOSE:To manufacture a narrow rubber sheet from a wide rubber sheet by means of a large number of juxtaposed cutters by moving one of cutter units to a cutting position, and driving the cutter units after being engaged with a driving means. CONSTITUTION:A package carriage (b) loaded with a wide rubber sheet package (p) is fixed, and a cutter unit C capable of cutting a wide rubber sheet (w) in prescribed width is moved to a cutting position. Next, after being engaged with a cutter unit driving device, a motor is operated, and the cutter unit C is driven. The wide rubber sheet (w) is cut into a desired narrow rubber sheet. When a cutter unit except the cutter unit C is required, the cutter unit C to be removed is transferred to a replacing carriage, and afterwards, a new cutter unit is housed in a cutter unit housing part. Thereby, a necessary cutter unit can be installed in a short time, so that operational efficiency can be improved significantly.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a narrow rubber sheet manufacturing method and apparatus for cutting a wide rubber sheet into narrow rubber sheets having a predetermined width. For example, a wide rubber sheet wound with a polyethylene sheet sandwiched as a liner material is cut into a narrow rubber sheet of a specified width for use as rubber between belts of pneumatic tires, belt ply ending rubber, etc. The present invention relates to a narrow rubber sheet manufacturing method and device.

[0002]

2. Description of the Related Art Conventionally, a blade of a round knife is pressed against a wide rubber sheet and cut to produce a narrow rubber sheet having a predetermined width.

[0003]

A conventional method for producing a narrow rubber sheet having a predetermined width by pressing the cutting edge of a round knife against a wide rubber sheet and cutting the same produces a large amount of narrow rubber sheet in a short time. However, there is a problem that the life of the cutter is extremely short.

Further, in the production of a narrow sheet such as a synthetic resin film, a narrow sheet producing method in which the width of the produced narrow sheet is changed by adjusting the interval between cutters arranged in parallel, and The device is known,
Since the mechanism for adjusting the interval between the cutters is complicated and the adjustment time is long, there is a problem in that the production of the narrow width sheet must be stopped for a long time and the work efficiency is reduced.

Further, when replacing the cutter due to abrasion of the cutter blade, it takes a long time to replace the cutter in a conventional narrow sheet manufacturing apparatus such as a synthetic resin film. Therefore, it is necessary to manufacture the narrow sheet for a long time. There is the problem of having to rest.

[0006] In cutting a rubber sheet, a considerable force is applied to a cutter unlike cutting a synthetic resin film, etc.
Naturally, a considerable force also acts on the mechanism for adjusting the interval between the cutters, and therefore the mechanism must be strong, and therefore the mechanism itself has to be large and complicated. In order to increase the size of the narrow rubber sheet manufacturing device, there is a practical narrow rubber sheet manufacturing method and device for cutting the narrow rubber sheet from the wide rubber sheet by a large number of juxtaposed cutters. There wasn't.

An object of the present invention is to solve the problems of the conventional method and apparatus for manufacturing a narrow width sheet as described above, and to manufacture a narrow width rubber sheet from a wide width rubber sheet by a plurality of cutters arranged in parallel. Another object of the present invention is to provide a method and an apparatus for manufacturing a narrow rubber sheet that enables the above.

[0008]

An embodiment of a method and apparatus for producing a narrow rubber sheet for achieving the above object will be described in detail below. FIG. 1 is a schematic side view showing the entire narrow rubber sheet manufacturing apparatus of the present invention. The narrow rubber sheet manufacturing apparatus is, for example, a wide rubber sheet sandwiched by sandwiching a polyethylene sheet as a liner material. A wide rubber sheet rewinding section B including a package carriage b that supports the sheet package p, and cutter units c1 to c5 that can be moved and exchanged (hereinafter, when referring to cutter units in general, simply refer to "cutter unit c"). "), Etc., and a winding unit d1 for winding up a narrow rubber sheet cut by a predetermined cutter unit c.
To d3 (hereinafter, in the case of referring to the winding device in general, simply referred to as "winding device d") and the like, a winding portion D, a cutter unit storage portion C described later.
It comprises a cutter unit exchange carriage E for exchanging a predetermined cutter unit c placed on the board and a package carriage b or a carriage holding portion A for positioning and fixing the cutter unit exchange carriage E at a predetermined position. ing.

Below, the carriage holding portion A, the wide rubber sheet rewinding portion B, the cutter unit accommodating portion C, the winding portion D and the cutter unit exchanging carriage E which constitute the narrow rubber sheet manufacturing apparatus will be described in detail.

First, the wide rubber sheet rewinding section B shown in FIG. 2 will be described. In FIG. 2, reference numeral 1 denotes a support frame of the package carriage b which supports the wide rubber sheet package p, and the wide rubber sheet package p is supported by known supporting means. 2 is a package truck b
The wheels 3 are installed on the floor along the front surface of the narrow rubber sheet manufacturing apparatus (the right side surface of the cutter unit housing C in FIG. 1 is referred to as the front surface of the narrow rubber sheet manufacturing apparatus). The guide wheels have V-grooves that engage with the existing rails r, and are attached to the lower part of the package carriage b. The wide rubber sheet w is introduced into the cutter unit c via the guide roller 4 supported by the frame f2 of the cutter unit housing portion C. Denoted at 5 and 5 ′ are sensors for detecting the presence of the wide rubber sheet w unwound from the wide rubber sheet package p, which are attached to the frame f2 and the column 6 standing on the floor, respectively. There is.

The package carriage b has a wide rubber sheet package p located at a rewinding position on the front surface of the narrow rubber sheet manufacturing apparatus and at a position deviated from the front surface of the narrow rubber sheet manufacturing apparatus.
It is configured to be movable along the rail r between the mounting position on the package carriage b. The above sensor 5,
When it is detected by 5 ′ that the wide rubber sheet w has disappeared, the winding is stopped, the package carriage b is moved to the mounting position of the wide rubber sheet package p on the package carriage b, and the empty package p is released. And the package p wrapped with a wide rubber sheet.

Also, when it is necessary to dispose a cutter unit exchange carriage E described later on the front surface of the narrow rubber sheet manufacturing apparatus, the package carriage b is removed from the front surface of the narrow rubber sheet manufacturing apparatus along the rail r. Is moved to the right position.

Next, the cutter unit housing portion C will be described with reference to FIGS. 1 and 3 to 6. In FIG.
f1 is a pillar standing from the floor, and the frame f2 for supporting the guide roller 4 and the like described above is attached to the pillar f1. m is a motor for driving a well-known worm screw jack j mounted on the upper end of the support column f1. By rotating the motor m forward and backward, the moving rod 8 of the worm screw jack j is moved in the vertical direction. Let In particular, as shown in FIG. 4, the moving rod 8
A cutter unit support frame f3 including a horizontal frame 10 and a pair of vertical frames 11 and 12 is attached to the shaft via a pin 7 and a connector 9, and a pair of vertical frames of the cutter unit support frame f3 is attached. Cutter units c1 to c are provided for 11 and 12, respectively.
Rails t1 to t5 suspending 5 to be movable in the horizontal direction
(When referring to this rail in general below,
It is simply referred to as "rail t". ) Is attached horizontally.

An L-shaped connecting frame 13 is attached to the upper end portions of the cutter units c1 to c5, and the connecting frame 13 has a wheel u1 having V grooves for engaging the rails t1 to t5, respectively. .. u5 (hereinafter, simply referred to as "wheel u" when referring to this wheel in general) is rotatably supported. As shown in the side view of the cutter unit housing C in FIG.
Two wheels u are attached to the character-shaped connecting frame 13.

Y1 and z1 are rotation axes of an upper cutter v1 and a lower cutter x1 which will be described later and are housed in the cutter unit c1, respectively. Similarly, from the cutter units c2 to c5, respectively, the upper cutter v1 is also rotated.
2 to v5 rotation axis y2 to y5 and lower cutter x2
The rotation axes z2 to z5 for x5 are projected (hereinafter, when referring to the upper cutter, the lower cutter, the rotation axis for the upper cutter, and the rotation axis for the lower cutter in general, simply refer to “the upper cutter v”). "Lower cutter x", "rotational axis y for upper cutter" and "rotational axis z for lower cutter". Further, passive gears g1 to g5 and h1 to h5 are attached to the rotary shafts y1 to y5 for the upper cutters v1 to v5 and the rotary shafts z1 to z5 for the lower cutters x1 to x5, respectively (see below). When referring to passive gears in general, they are simply referred to as "passive gears g" or "passive gears h").

In FIG. 5, reference numerals 14 and 15 denote an upper slider and a lower slider attached to the vertical frames 11 and 12, respectively, and a vertical guide rod held by the column f1 shown in FIGS. 1 and 5. 16 is slidably engaged. As shown in FIG. 6, which shows a schematic front view of the narrow rubber sheet manufacturing apparatus of the present invention, two vertical guide rods 16 are provided on the left and right.

By rotating the motor m in the forward and reverse directions, the moving rod 8 of the worm screw jack j is moved in the vertical direction, and the horizontal frame 10 and the pair of vertical frames 11,
When the cutter unit support frame f3 composed of 12 is moved in the vertical direction, the upper slider 14
Also, since the lower slider 15 is slidably engaged with the vertical guide rod 16, the cutter unit supporting frame f3 can be moved in a stable state.

In FIG. 5, reference numeral 17 denotes a cutter unit c suspended from a rail t via wheels u, and
The stopper is attached to the vertical frame 11 or 12 which is configured so as to be able to come into contact with and separate from the corner of the lower end of the cutter unit c by the rotation of the stopper rotation shaft 18 so as not to fall off from it. .

In FIG. 4, reference numeral 19 denotes a vertical frame 1 having a hole 20 into which a protrusion of a positioning block provided on a cutter unit exchange carriage E described later is fitted.
It is a positioning block attached to No. 1. The positioning block 19 may be provided corresponding to the cutter units c1 to c5, as shown in FIG.
It is also possible to provide an appropriate number such as two positions above and below the vertical frame 11.

Next, the cutter unit c will be described with reference to FIG. 7, which shows a front view of the cutter unit c. Reference numeral 21 is a rotary blade of the upper cutter v attached to the rotary shaft y for the upper cutter, and 22 is a receiving blade formed of an annular slit of the lower cutter x attached to the rotary shaft z for the lower cutter. is there. The intervals between the adjacent rotary blades 21 and the adjacent receiving blades 22 correspond to the widths of various desired narrow rubber sheets, respectively, and the cutter units c1 to c1.
Although it may be configured to be different for each c5, it is practical to prepare a plurality of cutter units c that are frequently used and are subject to heavy wear. The cutter unit c is preferably configured such that a necessary part is covered with a suitable housing (not shown).

Next, the cutter unit exchange carriage E will be described with reference to FIGS. In FIG. 8, which shows a side view of the cutter unit exchange cart E, 23
Is a trolley body having wheels 24 attached to the four corners of the bottom surface. The trolley body 23 has a narrow rubber sheet similar to the guide wheel 3 having the V groove attached to the lower portion of the package trolley b described above. Guide wheels 25 that engage with rails r installed on the floor surface are installed along the front surface of the manufacturing apparatus.
Reference numeral 26 denotes two rails attached to the upper surface of the carriage main body 23 for moving the U-shaped moving frame 27 so that the moving frame 27 can move toward and away from the cutter unit housing C.

The U-shaped moving frame 27 is composed of a horizontal frame 28 and a pair of vertical frames 29.
On the lower surfaces of both end portions of the horizontal frame 28, rail receiving members 30 having concave portions that engage with the two rails 26 attached to the upper surface of the bogie body 23 are attached.
A guide rod 31 is provided on each of the pair of vertical frames 29.

As shown in FIG. 9 which shows a rear view of the cutter unit exchange carriage E, the horizontal frame 28
A hydraulic jack 32 is erected approximately in the middle of the above, and a horizontal support frame 34 is attached to a moving rod 33 that is vertically moved by the hydraulic jack 32. Horizontal frame 3
A rail support frame 36 is horizontally attached to the unit 4 via a mounting member 35. Rail support frame 36
As shown in FIG. 9 and FIG. 10 showing an enlarged view of the lower end portions of the rail support frame 36 in the longitudinal direction, U-shaped frames 37 are attached to the lower end portions of the longitudinal end portions thereof. Has been done. The free end portion 38 of the U-shaped frame 37 is connected to the connecting frame 13 of the cutter unit c.
A rail 39 similar to the rail t attached to the vertical frames 11, 12 with which the wheels u attached to it can engage.
Are provided in the same direction as the rail t.

A pair of L-shaped frames 40 are attached to the rail support frame 36 as shown in FIGS. 8 and 9, and sliders 41 are provided on the upper and lower portions of the L-shaped frame 40. It is attached. This slider 41
Is slidably engaged with the guide rods 31 provided on the pair of vertical frames 29 described above, whereby the rail support frame 3 vertically moved by the hydraulic jack 32.
6 can be moved up and down in a stable state. Also,
Reference numeral 42 is a positioning block attached to the U-shaped frame 37. The positioning block 42 has a hole formed in the positioning block 19 attached to the vertical frame 11 described in FIG. A protruding portion 43 that fits in 20 is provided. By fitting the protruding portion 43 and the hole 20 formed in the positioning block 19 attached to the vertical frame 11, the pair of vertical frames 11 and 12 of the cutter unit support frame f3 are fitted.
It is configured such that the rail t attached to the rail t and the rail 39 attached to the free end portion 38 of the U-shaped frame 37 of the cutter unit exchange carriage E are accurately connected.

Next, the winding section D will be described with reference to FIGS.
And it demonstrates based on FIGS. 11-15. As shown in FIG. 11, one end of a winding shaft 44 having a quadrangular cross-section that supports a plurality of bobbins 45 having quadrangular through holes for winding the narrow rubber sheet e has a winding device d1.
To the bearing 47 attached to the support frame 46 of d3
And 48 rotatably supported. A torque motor 49 is mounted on the support frame 46, and a gear 50 is attached to the rotating shaft of the torque motor 49. The torque motor 49 causes the take-up shaft via the gear 50 and the belt 51. By driving the gear 52 attached to one end of 44, the bobbin 45 fitted to the winding shaft 44 is rotated to rotate the narrow rubber sheets e1 to e.
It is to wind up 3.

In FIG. 3, the winding devices d1 to d3.
Are arranged in three stages. For example, the upper winding devices d1 and d2 are wound with narrow rubber sheets e1 and e2 other than the ends of the cut wide rubber sheet, and are wound on the lower winding device d3. Can be configured to wind only the end that becomes scrap that cannot be used in a later step. With such a configuration, there is an advantage in that, in a later step, the sorting work of the end portions to be scraps and the other narrow rubber sheets e1 and e2 can be omitted. Further, by alternately winding the adjacent narrow width rubber sheets e1 and e2 around the winding devices d1 and d2, it is possible to prevent the adjacent narrow width rubber sheets e1 and e2 from contacting and rubbing against each other. You can

The end portion 44 'of the take-up shaft 44, which is opposite to the side to which the gear 52 is attached, and which is formed in the shape of a cylinder having a slightly smaller diameter, has a column f1 as shown in FIG.
It is supported by a winding bearing n attached to a rotating frame 53 which is rotatably supported by a mounting tool 54. As shown in FIG. 13, which shows an enlarged view of the winding bearing n shown in FIG. 11, the winding bearing n has a rod 5 in the left-right direction in FIG.
A cylinder 56 for reciprocating the 5 is provided, and a slidable rod 60 is attached to the rod 55 via a connector 57. A fitting head 58 having a hole that fits into the end 44 ′ of the winding shaft 44 is rotatably supported at the tip of the slidable rod 60 via a bearing 59. Therefore, when the cylinder 56 is operated to move the rod 55 to the left in FIG. 13, the sliding rod 60 also linearly moves to the left, and the fitting head 58 moves to the end 44 ′ of the winding shaft 44. Engaging and winding shaft 44
Bearings 47, 48 attached to the support frame 46
And a take-up bearing n so that they are supported at both ends.

On the contrary, when the cylinder 56 is operated to move the rod 55 to the right in FIG. 13, the slidable rod 60 also linearly moves to the right, and the fitting head 58 is moved to the end of the winding shaft 44. Apart from 44 ', the take-up shaft 44 is supported in a cantilever state by the bearings 47 and 48 attached to the support frame 46. From this state, as shown in FIG. 14, which is a partial plan view of the winding portion D, the rotation frame 53 is rotated in the direction of arrow q to rotate the rotation shaft 53 around the end 44 ′ of the winding shaft 44. A bobbin 45 having a narrow rubber sheet e wound therein can be taken out from the end 44 'side of the winding shaft 44, and an empty bobbin 45 not wound with the narrow rubber sheet e can be formed. Can be easily inserted into the winding shaft 44 from the end 44 ′ side of the winding shaft 44.

In the winding section D described above, it is extremely important that the winding shaft 44 does not swing while the narrow rubber sheet e is being wound. If the winding shaft 44 swings during winding, an abnormal tension is momentarily applied to the narrow rubber sheet e to cause the narrow rubber sheet e to be cut, or even if it is not cut, the narrow rubber sheet e is cut. Since the uniform tension does not always act, problems occur such that the winding shape is disturbed and winding collapse occurs, and the physical properties of the rubber itself are affected. Furthermore, it also causes abnormal noise.

The take-up shaft 44 shakes when the take-up shaft 44 itself bends and shakes due to the weight of the narrow rubber sheet e to be taken up, or at the end 4 of the take-up shaft 44.
A common cause is that the end 44 'of the winding shaft 44 swings due to a gap between the 4'and the fitting head 58. Narrow rubber sheet e wound on the winding shaft 44
The flexure due to the weight of can be significantly reduced by changing the cross-sectional shape of the winding shaft 44 or making the winding shaft 44 thick. On the other hand, the end 44 ′ of the winding shaft 44 and the fitting head 58 are configured so that there is no play between the end 44 ′ of the winding shaft 44 and the fitting head 58. Only by the reciprocating movement of the winding bearing n linear with respect to the axis, the end portion 4 of the winding shaft 44 is
4'and the fitting head 58 are fitted or separated from each other, the bobbin wound with the narrow rubber sheet e is pulled out from the winding shaft 44 or the empty bobbin 45 is attached to the winding shaft 44. In order to perform the work, the linear movement distance of the winding bearing n must be increased,
Therefore, it is necessary to take a large space on the right side in FIG. 11 in order to move the winding bearing n.

Further, by rotating the support frame for supporting the take-up bearing n, the moving distance of the take-up bearing n is reduced, and moreover, the bobbin 45 is mounted on the take-up shaft 44 or the take-up shaft. If it is configured to take up a large space for the work of extracting from the winding shaft 44, the movement locus of the winding shaft bearing n is a circle, so that the space between the end 44 ′ of the winding shaft 44 and the fitting head 58 is somewhat increased. If the gap is not provided, the end 44 ′ of the winding shaft 44 and the fitting head 58 cannot be fitted together.

In order to solve the above-mentioned problems, the winding portion D of the present invention is a rotating frame which is rotatably supported by a support end portion f1 which is erected from the floor via a mounting tool 54. 53, a winding bearing n having a fitting head 58 and capable of linearly reciprocating is installed. Winding shaft 4
When fitting the fitting head 58 to the end portion 44 ′ of No. 4, the fitting head 58 first moves the turning frame 53 to the end portion 44 of the winding shaft 44 as shown in FIG. 14. Rotate in the opposite direction of arrow q until it approaches'. Then, the cylinder 56 is operated as described above to linearly move the slidable rod 60 in the left direction in FIG. 13 to fit the fitting head 58 to the end portion 44 ′ of the winding shaft 44.
By combining the rotational movement of the rotary frame 53 and the linear movement of the fitting head 58 in this manner, the above-mentioned conventional problems can be completely solved.

As shown in FIG. 15 which is an enlarged view of the lower end portion of the rotating frame 53 of FIGS. 11 and 11, the fitting rod 61 is moved up and down on the lower end portion of the rotating frame 53. An actuator 62 is installed. On the other hand, the rotating frame fixing tool 6 having a hole 63 into which the fitting rod 61 can be inserted is provided on the floor.
4 is installed, the fitting rod 61 is moved downward by the actuator 62, and the fitting rod 61 is inserted into the hole 63 of the turning frame fixing tool 64, so that the turning frame 53 is firmly held. be able to. As shown in FIG. 14, when rotating the rotating frame 53 in the direction of arrow q, the fitting rod 61 is moved upward by the actuator 62 and fitted through the hole 63 of the rotating frame fixing tool 64. Remove the dowel rod 61.

Next, the drive unit i for the cutter unit c will be described with reference to FIGS. 6, 16 and 17. As shown in FIG. 6, the drive device i of the cutter unit c is mounted on the horizontal frame f4 of the frame f2 of the cutter unit housing portion C. In FIG. 16 and FIG. 17, reference numeral 65 denotes a rail provided on the horizontal frame f4, and the drive device i of the cutter unit c is
The passive gear h attached to the rotary shaft z for the lower cutter x shown in FIG.
The passive gear h for is located behind the drive gear 66. ) And the drive gear 6 of the drive unit i of the cutter unit c
It is a rail 65 for moving 6 so that they mesh with each other.

Reference numeral 67 is a slide table, and a slider 68 having a recess for fitting with the rail 65 is attached to the bottom surface of the slide table 67, and a bearing is provided on the top surface of the slide table 67. A rotary shaft 70, which is supported by 69 and has a drive gear 66 attached to one end, is mounted. A support rod 71 is erected on the upper surface of the slide base 67, and a motor support base 73 on which the motor 72 is mounted is attached to the support rod 71. The sprocket 7 is attached to the rotary shaft 74 of the motor 72.
5 is attached to the rotary shaft 70 via a chain 76.
The sprocket 77 attached to the drive gear 66 is driven to rotate the drive gear 66.

The passive gear h attached to the rotary shaft z for the lower cutter x of the cutter unit c (as described above, the passive gear h attached to the rotary shaft z for the lower cutter x is 16, which is located behind the drive gear 66.), the drive gear 66 of the cutter unit drive i is driven by a suitable drive not shown to drive the passive gear h of the lower cutter x. 17, the cutter unit drive device i is moved to the right in FIG. 17 along the rail 65 to engage the drive gear 66 of the cutter unit drive device i with the passive gear h of the lower cutter x, and then the motor 72 is turned on. By running,
The drive gear 66 is driven via the chain 76, and the passive gear h meshing with the drive gear 66 is rotated. Also,
In order to stop the drive of the cutter unit c, first, the drive of the motor 72 is stopped, and then the drive gear 66 of the cutter unit drive device i is kept in the cutter unit drive device i until it separates from the passive gear h of the lower cutter x. This is performed by moving the rail 65 to the left along the rail 65 and releasing the meshing between the drive gear 66 and the passive gear h.

In FIG. 16, 94 is the rotary shaft 70.
The reference numeral 96 designates the rod to be inspected, and the reference numeral 96 indicates the rotational speed of the rod to be inspected 94 installed on the supporting frame 95 having one end attached to the slide base 67, that is, the rotational speed of the rotary shaft 70. Is a proximity switch for measuring the rotation amount of the rotary shaft 70, the winding amount of the narrow rubber sheet e wound around the bobbin 45 is measured, and the winding amount is measured. Based on this, the bobbin 45 replacement timing and the like are controlled.

Next, referring to FIGS. 8, 9, 18 and 19, the fixing unit 90 and the carriage provided on the cutter unit replacement carriage E side will be described as an example of fixing the cutter unit replacement carriage E. The trolley-holding unit A configured by the fixing device k will be described.

As shown in FIG. 8, the carriage fixing device k
Is installed on the rear floor surface of the cutter unit exchange carriage E on the side opposite to the side facing the cutter unit housing C.

Reference numeral 78 is a pillar standing on the floor,
The upper end of the cylinder 80 is pivotally supported by the shaft 79 on the upper side surface of the column 78. On the other hand, a shaft 82 pivotally supports the vicinity of a right-angled portion of a substantially right-angled triangular rotary plate 81 at the upper end of the column 78. Further, the rotating plate 8 having a substantially right triangle shape
An end portion of the cylinder rod 84 of the cylinder 80 is pivotally supported by a shaft 85 on one corner portion 83 of the first cylinder 80.
Further, the other corner portion 8 of the rotating plate 81 having a substantially right triangle shape
A fixed head 88 is attached to 6 via a connecting rod 87.

Therefore, in FIG. 18, the cylinder 80
When the cylinder rod 84 is retracted into the cylinder 80, the substantially right-angled triangular rotary plate 81 rotates counterclockwise around the shaft 82 near the right-angled portion of the rotary plate 81, and the connecting rod 87 is rotated. Are held in the vertical state indicated by the chain double-dashed line. On the contrary, when the cylinder 80 is operated and the cylinder rod 84 is pushed out from the cylinder 80, the substantially right-angled triangular rotary plate 81 rotates clockwise about the shaft 82 near the right-angled portion of the rotary plate 81 to be connected. Hold the rod 87 in the horizontal position shown by the solid line.

As shown in FIG. 9, a fastener 90 having a recess 89 is attached to the trolley body 23 of the cutter unit exchange trolley E at a substantially central portion thereof. The fixed head 88 attached to the tip of the connecting rod 87 can be fitted into the concave portion 89 of the fastener 90. Then, the cutter unit exchange carriage E is moved by an appropriate driving device or by a worker along the rail r installed on the floor surface shown in FIG. When the fixing tool 90 provided at the position reaches the position where the trolley fixing device k is installed, the cutter unit exchange trolley E is stopped. Thereafter, as described above, from the vertical state of the connecting rod 87 shown in FIG. 8, the cylinder 80 is operated to push the cylinder rod 84 out of the cylinder 80, and the substantially right-angled triangular rotary plate 81 is attached to the shaft 82. Rotate the connecting rod 87 to the center until it becomes horizontal, and
The fixed head 88 attached to the tip of 7 is fitted into the recess 89 of the fastener 90 attached to the center of the carriage main body 23 of the cutter unit exchange carriage E, and the cutter unit exchange carriage E is moved. Fix not to. In order to make the cutter unit exchange cart E movable,
The operation reverse to the above may be performed. Also, the package carriage b
Similarly, the fastener 90 is attached to the support frame 1 of
The carriage fixing device k fixes the package carriage b so as not to move during the supply of the wide rubber sheet w to the cutter unit storage portion C.

Next, the supply of the wide rubber sheet w to the cutter unit housing portion C and the winding of the narrow rubber sheets e1 to e3 will be outlined with reference to FIGS. The wide rubber sheet w unwound from the wide rubber sheet package p is cut into a predetermined width by the cutter unit c1 after passing through the guide roller 4, and each winding is passed through the guide rollers 91, 92, 93 supported by the support column f1. Take-up devices d1 to d in which a take-up shaft 44 supports a plurality of bobbins 45
It is rolled up to 3. The position of the cutter unit c1 shown in FIGS. 1 and 3 is always set to be the cutting position of the wide rubber sheet w.

Next, the replacement work of the cutter units c1 to c5 housed in the cutter unit housing section C will be described. Rotating blades that have been used until now when a cutter unit c in which adjacent rotary blades 21 and receiving blades 22 have different intervals is required, or because the rotary blades 21 or receiving blades 22 of the cutter unit c are worn 21
Alternatively, when a cutter unit c having the same spacing as the receiving blade 22 is required, the cutter unit c in FIG.
It is necessary to replace the cutter unit c at the cutting position which is position 1 with the desired cutter unit c.

This exchanging work will be described in detail with reference to the case where the cutter unit c2 is used instead of the cutter unit c1 at the cutting position shown in FIG. 1 or FIG.

First, the driving of the motor 72 of the cutter unit driving device i is stopped, and then the driving gear 66 of the cutter unit driving device i is driven by the passive gear h of the lower cutter x.
Until the cutter unit drive device i is separated from the rail 6
5, the drive gear 66 and the passive gear h are disengaged from each other. Then, by rotating the motor m, the moving rod 8 of the worm screw jack j is moved upward to move the cutter unit supporting frame f3 to the cutting position where the cutter unit c2 is at the cutting position, that is, at the same level as the guide roller 4 in FIG. Raise to position. In this way, the cutter unit support frame f3 supporting the cutter units c1 to c5 is moved up and down by the vertical movement of the moving rod 8 of the worm screw jack j so that the required cutter unit c can be appropriately moved to the cutting position. To do.

Next, for example, when a cutter unit c in which adjacent rotary blades 21 and receiving blades 22 have different intervals is required, or because the rotary blade 21 or the receiving blade 22 of the cutter unit c is worn out. If a cutter unit c that has the same spacing as the rotary blade 21 or the receiving blade 22 that has been used up to now is needed, etc., the cutter units c1 to c5 housed in the cutter unit support frame f3 of the cutter unit housing section C are used. When it becomes necessary to store a cutter unit c other than the above in the cutter unit storage portion C, one of the cutter units c1 to c5 is taken out from the cutter unit support frame f3, and the necessary cutter unit c is newly supported. When mounting on the frame f3, mainly in FIG.
This will be described with reference to FIGS.

First, first, the package carriage b located on the front surface of the narrow rubber sheet manufacturing apparatus shown in FIG. 1 is retracted along the rail r, and as shown in FIG. The unit exchange carriage E is arranged in front of the narrow rubber sheet manufacturing apparatus, and the cylinder 80 of the carriage fixing device k is operated to attach the fixing head 88 attached to the tip of the connecting rod 87 to the cutter unit exchange carriage E.
Fixing device 90 attached to the substantially central portion of the truck main body 23
Then, the cutter unit exchange carriage E is fixed so as not to move.

Next, by driving the motor m, the moving rod 8 of the worm screw jack j is moved in the vertical direction to raise or lower the cutter unit supporting frame f3 and remove the cutter unit c from the cutter unit supporting frame f3. It is arranged at a cutter unit replacement position, for example, at a cutter unit replacement position above the cutter unit c1 indicated by a two-dot chain line in FIG.

Next, the hydraulic jack 32 is actuated, and the rail 39 attached to the free end 38 of the U-shaped frame 37 of the cutter unit exchanging carriage E is attached to, for example, FIG.
The cutter unit c is moved to the same height as the rail t of the cutter unit c to be removed, which is located at the cutter unit replacement position shown in FIG. After that, by a predetermined driving means, the U-shaped moving frame 27 is moved along the two rails 26 attached to the upper surface of the carriage main body 23 so as to approach the cutter unit housing portion C, and The rail 3 attached to the free end 38 of the frame 37
9 and the rail t of the cutter unit c are connected. At this time, the projection unit 43 of the positioning block 42 on the U-shaped frame 37 side is fitted into the hole 20 formed in the positioning block 19 attached to the vertical frame 11 described above, thereby supporting the cutter unit. The rail t on the frame f3 side and the rail 39 attached to the free end 38 of the U-shaped frame 37 on the cutter unit exchange carriage E side can be reliably connected.

After the rail 39 attached to the free end 38 of the U-shaped frame 37 and the rail t of the cutter unit c are connected, the cutter unit c is pushed out by a suitable driving means such as a cylinder, Free end portion 38 of the U-shaped frame 37 on the cutter unit exchange carriage E side
The wheels u of the cutter unit c are placed on the rails 39 attached to the cutter unit c, and the cutter unit c is transferred to the cutter unit exchange carriage E. Next, the engagement between the concave portion 89 of the fixing tool 90 and the fixing head 88 of the carriage fixing device k is released, the cutter unit exchange carriage E on which the cutter unit c is placed is moved, and the cutter unit c is placed at an appropriate position. Take it down,
The required cutter unit c is a U-shaped frame 37
After being mounted on the rail 39 attached to the free end 38 of the same, the cutter unit replacement carriage E is moved to the front of the narrow rubber sheet manufacturing apparatus and fixed by the carriage fixing device k in the same manner as above. , A U-shaped moving frame 27 along the two rails 26 attached to the upper surface of the carriage main body 23.
Is moved so as to approach the cutter unit housing portion C, and the rail 39 attached to the free end portion 38 of the U-shaped frame 37 and the rail t of the cutter unit c are connected. After the rail 39 attached to the free end 38 of the U-shaped frame 37 and the rail t of the cutter unit c are connected, the cutter unit c is pushed out from the cutter unit exchange carriage E by an appropriate driving means. The wheels u of the cutter unit c are placed on the rail t and stored in the cutter unit storage portion C. After that, the motor m is driven to lower the moving rod 8 of the worm screw jack j, and the cutter unit c newly loaded into the cutter unit housing C is placed at the cutting position.

Further, another C-shaped frame 37 having a rail 39 is arranged on the cutter unit exchanging carriage E, and a cutter unit c to be newly accommodated in the cutter unit accommodating section C is placed on one of the U-shaped frames 37. The cutter unit c taken out from the cutter unit housing C is mounted on the U-shaped frame 37 having two rails 39, so that the cutter unit can be moved only by the vertical movement of the U-shaped frame 37. c can be exchanged, and thus, as described above, for lowering the cutter unit c and mounting the required cutter unit c on the rail 39 attached to the free end 38 of the U-shaped frame 37. In addition, the step of moving the cutter unit exchange cart E can be omitted.

Further, in the above embodiment, the cutter unit replacement position is changed to the cutting position (in FIG. 8, the guide roller 4 is used).
However, it is also possible to attach the guide roller 4 to the frame f2 in a vertically movable manner and set the cutter unit replacement position to the cutting position.

Next, the operation of the narrow rubber sheet manufacturing method and the manufacturing apparatus thereof according to the present invention will be described. The package carriage b, on which the wide rubber sheet package p is placed, is fixed at the position shown in FIG. 1, and the wide rubber sheet w has a predetermined width.
The cutter unit c capable of cutting the blade is moved to the cutting position by vertically moving the moving rod 8 of the worm screw jack j (see FIG.
Alternatively, it is moved to the position of the cutter unit c1 shown in FIG. During the above operation, the cutter unit drive device i is retracted along the rail 65 so that the drive gear 66 of the cutter unit drive device i is separated from the passive gear h of the lower cutter x, so that the cutter unit c
Has its drive stopped.

Next, the cutter unit driving device i is moved along the rail 65 until the driving gear 66 of the cutter unit driving device i meshes with the passive gear h of the lower cutter x, and then the motor 72 is operated to drive the passive gear. The cutter unit c is driven by rotating h. Then, the wide rubber sheet w is introduced into the cutter unit c via the guide roller 4, and the wide rubber sheet w is cut into a desired narrow rubber sheet e. The cut narrow rubber sheet e passes through the guide rollers 91, 92, 93, and the respective winding shafts 44.
It is wound up on a plurality of bobbins 45 inserted in

When a cutter unit c other than the cutter units c1 to c5 mounted on the cutter unit exchange carriage E is required, the narrow rubber sheet manufacturing apparatus including the motor 72 of the cutter unit driving device i is used. The drive is stopped, the engagement between the drive gear 66 and the passive gear h is released, and the cutter unit c to be removed is moved to the cutter unit replacement position as described above. on the other hand,
The package carriage b located in front of the narrow rubber sheet manufacturing apparatus is retracted along the rail r, and the cutter unit replacement carriage E is arranged in front of the narrow rubber sheet manufacturing apparatus. Next, the rail 39 attached to the free end 38 of the U-shaped frame 37 of the cutter unit exchange carriage E.
After connecting the cutter unit c to the rail t of the cutter unit c, the cutter unit c to be removed is moved to the cutter unit exchange carriage E, and then mounted on the rail 39 attached to the free end 38 of the U-shaped frame 37. The newly placed cutter unit c to be stored in the cutter unit storage C is pushed out from the cutter unit exchange carriage E, the wheels u of the cutter unit c are placed on the rail t, and stored in the cutter unit storage C.

The bobbin 45 on which the narrow rubber sheet e cut by the cutter unit c is wound is wound on the winding shaft 4.
4 is removed, the cylinder 56 is operated to linearly move the slidable rod 60 in the right direction in FIG. 13 to move the fitting head 58 away from the end 44 ′ of the winding shaft 44, and the winding shaft 44. Is supported in a cantilevered state by the bearings 47 and 48 attached to the support frame 46, and from this state, by rotating the rotating frame 53, a space is provided around the end 44 ′ of the winding shaft 44. The bobbin 45 formed and wound with the narrow rubber sheet e is taken out from the end 44 ′ side of the winding shaft 44. After that, the empty bobbin 45 is inserted into the winding shaft 44, the rotating frame 53 is rotated until the fitting head 58 approaches the end portion 44 ′ of the winding shaft 44, and then the cylinder 56 is operated to move it. The moving rod 60 is linearly moved to the left in FIG.
Is fitted to the end 44 ′ of the winding shaft 44.

For example, a rack is provided on the vertical guide rod 16, a pinion that engages with the rack is installed on the cutter unit support frame f3, and the movement distance of the cutter unit support frame f3 rotates the pinion that engages with the rack. It is also possible to detect which cutter unit c is at the cutting position by detecting the number. The desired narrow rubber sheet e can be appropriately manufactured by the operations described above.

[0059]

Since the present invention is constructed as described above, it has the following effects. By storing a predetermined number of cutter units in the cutter unit storage portion, it is possible to easily install the required cutter unit at the cutting position within a short time. The operating efficiency of the device can be greatly improved.

Cutter units that are not stored in the cutter unit storage section can be easily stored in the cutter unit storage section by the cutter unit replacement cart, so that the working efficiency and the operation efficiency of the narrow rubber sheet manufacturing method and apparatus are greatly improved. Can be improved.

By combining the rotational movement of the rotary frame and the linear movement of the fitting head, the moving distance of the take-up bearing is shortened, and furthermore, the bobbin is mounted on the take-up shaft or is taken out from the take-up shaft. The space for can be increased.

[Brief description of drawings]

FIG. 1 is a schematic side view of a narrow rubber sheet manufacturing apparatus.

FIG. 2 is a side view of a rewinding unit of a wide rubber sheet that constitutes the narrow rubber sheet manufacturing apparatus.

FIG. 3 is an enlarged side view of a main part of the narrow rubber sheet manufacturing apparatus shown in FIG.

FIG. 4 is a front view of a cutter unit housing portion that constitutes the narrow rubber sheet manufacturing apparatus.

5 is a side view of the cutter unit storage section shown in FIG. 4. FIG.

6 is a schematic front view of the narrow rubber sheet manufacturing apparatus shown in FIG. 1. FIG.

FIG. 7 is a front view of a cutter housed in a cutter unit that constitutes the narrow rubber sheet manufacturing apparatus.

FIG. 8 is a side view mainly showing a cutter unit exchange cart that constitutes the narrow rubber sheet manufacturing apparatus.

9 is a rear view of the cutter unit exchanging cart shown in FIG. 8. FIG.

10 is an enlarged view of the U-shaped frame shown in FIG. 9. FIG.

FIG. 11 is a front view of a winding device that constitutes the narrow rubber sheet manufacturing apparatus.

FIG. 12 is a side view of a winding device that constitutes the narrow rubber sheet manufacturing apparatus.

FIG. 13 is an enlarged view of a winding shaft support portion of a winding device that constitutes the narrow rubber sheet manufacturing apparatus.

FIG. 14 is a partial plan view of a winding device that constitutes the narrow rubber sheet manufacturing apparatus.

FIG. 15 is an enlarged view of the lower part of the rotating frame of the winding device that constitutes the narrow rubber sheet manufacturing apparatus.

FIG. 16 is a front view of a drive unit of a cutter unit that constitutes the narrow rubber sheet manufacturing apparatus.

17 is a side view of the drive unit of the cutter unit shown in FIG. 16. FIG.

FIG. 18 is a side view of a carriage fixing device that constitutes the narrow rubber sheet manufacturing apparatus.

FIG. 19 is a front view of the carriage fixing device shown in FIG. 18.

[Explanation of symbols]

 A: Cart holding section B: Wide rubber sheet rewinding section C: Cutter unit storing section D: Rewinding section E: Cutter unit replacement cart i ・ ・ ・ ・ ・ Cutter unit drive

Claims (4)

[Claims] 1. When a wide rubber sheet is supplied to one of the cutter units in which a plurality of cutting blades are arranged in parallel and cut into narrow rubber sheets, among the plurality of cutter units accommodated in the cutter unit accommodating device. One of the two is moved to the cutting position, and then the cutter unit drive means is engaged with the rotary shaft of the cutter unit, and then the cutter unit drive means is operated to drive the cutter unit to narrow the width of the wide rubber sheet. A method for producing a narrow rubber sheet for producing a rubber sheet. 2. A cutter unit accommodating device at a cutter unit replacement position by a moving carriage when a wide rubber sheet is supplied to one of the cutter units in which a plurality of cutting blades are arranged in parallel to cut into a narrow rubber sheet. After the paper has been loaded into the machine, it is transferred to the cutting position, and then the cutter unit driving means is engaged with the rotary shaft of the cutter unit, and then the cutter unit driving means is operated to drive the cutter unit to drive the narrow rubber sheet from the narrow rubber sheet. A method for manufacturing a narrow width rubber sheet for manufacturing a width rubber sheet. 3. A cutter unit supporting frame for accommodating a cutter unit having a plurality of cutting blades arranged side by side, driving means for vertically moving the cutter unit supporting frame, and a cutter on a rotary shaft of the cutter unit arranged at the cutting position. An apparatus for manufacturing a narrow rubber sheet, comprising: a unit driving unit that moves in such a manner that the unit driving unit can be contacted and separated. 4. A cutter unit supporting frame for accommodating a cutter unit having a plurality of cutting blades arranged side by side, a cutter unit carrier for loading and unloading the cutter unit into and from the cutter unit supporting frame, and a vertical movement of the cutter unit supporting frame. An apparatus for manufacturing a narrow rubber sheet, comprising: a driving unit that drives the cutter unit and a unit that moves the cutter unit driving unit so that the cutter unit driving unit can be moved toward and away from the rotary shaft of the cutter unit located at the cutting position.