JPH11221796A - Cutting device and cutting method for undefined form article - Google Patents

Abstract

PROBLEM TO BE SOLVED: To cut an undefined form article such as a synthetic rubber bale at a specific weight. SOLUTION: This cutting device is provided with a feeding mechanism 1 to feed an undefined form article B; a feed rate measuring means 3 to measure the feed rate of the feeding mechanism 1; a cutter 4 to cut the undefined form article B by the surface perpendicular to the feed direction; and plural section form measuring elements 5 movable responding to the variation of the section form of the undefined form article B. Furthermore, this device is provided with an operational means 6 to compute the measuring values by the section form measuring elements 5 and the feed rate by the feed rate measuring means 3 to decide the position of a partition surface to partition the undefined form article B into plural areas of specific volume; a stopper mechanism 7 to stop the undefined form article B; and a control means 8 to control the stopper mechanism 7 to stop at the position where the undefined form article B is cut at the partition surface.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus and a method for cutting irregular-shaped objects.

[0002]

2. Description of the Related Art Conventionally, a synthetic rubber bale (hereinafter sometimes abbreviated as "synthetic rubber veil" or simply "bale") as a raw material for tire production has a large number of types having different weights (volumes). Was manufactured, and a veil having a weight suitable for the purpose was selected and used.

[0003]

However, as described above, there is a problem that it is difficult to store and manage the bale in the method of selecting a bale having a weight suitable for the purpose from among various types of bale. Was. In addition, the operator sometimes cuts at an approximate position depending on the amount of eyes, but the weight accuracy was extremely poor.

Therefore, the present invention solves the above-mentioned problem,
It is an object of the present invention to provide an apparatus for cutting an irregularly shaped article that can cut the irregularly shaped article to a predetermined weight. It is another object of the present invention to provide a method for cutting an irregularly shaped object that can cut the irregularly shaped object to a predetermined weight.

[0005]

In order to achieve the above-mentioned object, an irregular-shaped object cutting device according to the present invention measures a feed mechanism for feeding an irregular-shaped object and a feed amount of the feed mechanism. A feed amount measuring means, a cutter for cutting the irregularly shaped object at a plane perpendicular to a feeding direction, and a movable member which is in contact with the outer surface of the irregularly shaped object and is movable in accordance with a change in the cross-sectional shape of the irregularly shaped object. A plurality of cross-sectional shape measuring elements, and a calculating means for calculating a value measured by the cross-sectional shape measuring element and a feed amount by a feed amount measuring means to determine a position of a dividing surface which divides the irregular-shaped object into a plurality of predetermined volume regions. And a stopper mechanism for stopping the irregularly shaped object, and controlling the stopper mechanism so as to stop at a position where the irregularly shaped object is cut at the dividing surface in response to a dividing surface position signal from the arithmetic means. And control means.

Further, according to the method of cutting an irregularly shaped object according to the present invention, a feed is given to the irregularly shaped object while a plurality of cross-sectional shape measuring elements are brought into contact with the outer surface of the irregularly shaped object, and a plane perpendicular to the feeding direction is provided. The cross-sectional area at the time of cutting is obtained at predetermined pitches in the feed direction to obtain a cross-sectional area distribution, and based on the cross-sectional area distribution,
A position of a dividing surface that divides the irregularly shaped object into a plurality of regions having a predetermined volume in the feed direction is obtained, and the irregularly shaped object is cut at the dividing surface.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings showing embodiments.

FIG. 1 and FIG. 2 show an embodiment of an apparatus for cutting irregular-shaped objects according to the present invention. Weight──
A feed mechanism 1 for feeding the irregular-shaped object B, a feed amount measuring unit 3 for measuring a feed amount of the feed mechanism 1, and an irregular-shaped object B perpendicular to the feed direction C. A cutter 4 for cutting the surface of the irregular-shaped object B, a dispensing mechanism 2 for dispensing the cut irregular-shaped object B, and a plurality of movable members which are in contact with the outer surface of the irregular-shaped object B and which can move in response to a change in the sectional shape of the irregular-shaped object B The cross-sectional shape measuring elements 5 and the measured values of the cross-sectional shape measuring elements 5 and the feed amount by the feed amount measuring means 3 are calculated to determine the position of the dividing plane that divides the irregular-shaped object B into a plurality of predetermined volume regions. Calculating means 6, a stopper mechanism 7 for stopping the irregular-shaped object B, and a stopper for receiving a dividing surface position signal from the computing means 6 so as to stop at a position where the irregular-shaped object B is cut at the dividing surface. And control means 8 for controlling the mechanism 7.

Here, as the amorphous material B, for example, a synthetic rubber veil as a raw material of a tire can be mentioned. That is,
The veil (the irregular-shaped object B) has a flat and irregular outer shape as shown in FIG. 3, FIG. 4, and FIG. In addition,
As the amorphous material B, any solid other than synthetic rubber veil can be used as long as the solid has substantially the same density distribution and can be cut by the cutter 4.

Thus, (returning to FIGS. 1 and 2), the feed mechanism 1 comprises a base frame 9 and a plurality of rollers 10 which are rotatably mounted on the base frame 9 so as to be rotatable around a horizontal axis. An endless belt 11 suspended by the rollers 10..., A driving motor 13, and interlocking connection means 12 for interlocking the motor 13 and one roller 10 (drive roller 10 a). The dispensing mechanism 2 includes a base frame 9 and a plurality of rollers 14, similarly to the feed mechanism 1.
, An endless belt 15 suspended by rollers 14, a driving motor 13, and interlocking connection means 16 for interlockingly connecting the motor 13 and the driving roller 14 a.

The feed amount measuring means 3 comprises an encoder for detecting the feed amount of the belt 11. Further, a payout amount measuring means 18 for detecting the feed amount of the belt 15 is provided on the payout mechanism 2 side.
(Encoder) is provided. The circuit is connected so that the measurement value signal is sent from the feed amount measuring means 3 to the calculating means 6 and the rotation drive control signal is sent from the control means 8 to the motor 13. The circuit is connected so that the measurement value signal is sent from the payout amount measurement unit 18 to the control unit 8 and the rotation drive control signal is sent from the control unit 8 to the motor 17.

Next, the cutter 4 is mounted on a portal frame 19 erected at an intermediate portion of the base frame 9 via a cylinder 20 which is driven and controlled by the control means 8 so as to be capable of driving up and down. Further, the cross-sectional shape measuring elements 5 are rotatably mounted on a cylinder 21 with a built-in encoder which is mounted on a portal frame 22 erected on the feed mechanism 1 side of the base frame 9, and on a tip of a cylinder rod of the cylinder 21. And rolling rollers 23.
Specifically, three vertical tracing styluses 5 that contact the upper surface of the irregular-shaped object B are provided, and two left and right tracing stylus 5 that contact the left and right side surfaces of the irregular-shaped object B are provided. The circuit is connected so that the measured value signal from the encoder of the cylinder 21 is sent to the calculating means 6 and the control signal from the control means 8 is sent to the cylinder 21.

The stopper mechanism 7 includes a horizontal plate 24 fixed to the portal frame 19, a moving frame 25 mounted on the lower surface of the horizontal plate 24 so as to be movable in the front-rear direction, and a motor mounted on the horizontal plate 24. 26, an interlocking coupling mechanism 27 interposed between the motor 26 and the moving frame 25 and for moving the moving frame 25 in the front-rear direction.
And an encoder 30 that detects the front-back position of the moving frame 25
A lifting cylinder 28 attached to the moving frame 25 in the vertical direction, an attachment member 29 fixed to the tip (lower end) of a cylinder rod of the cylinder 28, and a stopper body 33 attached to the attachment member 29. Become.

The interlocking connection mechanism 27 is composed of a ball screw screwed into a screw hole provided in the moving frame 25 so as to be able to advance and retreat, and a belt and a sprocket for interlocking the ball screw and the motor 26. The forward / backward position signal detected by the encoder 30 is sent to the control means 8, and the control means 8
Is connected to the motor 26 so that a control signal is sent to the motor 26. If the arithmetic means 6 and the control means 8 are composed of only a sequencer and perform arithmetic processing, cost can be reduced at a practically sufficient processing speed. It is to be noted that the arithmetic means 6 and the control means 8 may be constituted by a personal computer. Alternatively, the arithmetic means 6 may be constituted by a personal computer, and the control means 8 may be constituted by a circuit dedicated to control. Further, the arithmetic means 6 and the control means 8 may be designed as dedicated circuits without using a personal computer.

Next, a method of cutting an irregular-shaped object by the irregular-shaped object cutting device will be described. First, as shown in FIG. 3, a synthetic rubber veil as an irregular-shaped object B is mounted on the belt 11 of the feed mechanism 1. Then, the irregular-shaped object B is aligned with the center of the belt 11 in the left-right direction by centering means (not shown).
Then, the feed mechanism 1 is driven to feed the bale to a position where the cross-sectional shape measuring elements 5 can contact.

Thereafter, as shown in FIG. 4A, the tips of the tracing styluses 5 are brought into contact with a position on the rear side by a predetermined front and rear dimension F from the tip of the irregular-shaped object B. Next, the backward feed is given to the irregular-shaped object B as shown by an arrow G, and all the probes 5 are completely removed from the tip of the irregular-shaped object B as shown in FIG. Find the cross-sectional area distribution until it is fully extended. That is, the cross-sectional area at the time of cutting at a plane perpendicular to the feed direction is obtained for each predetermined pitch, and the cross-sectional area distribution of the front part is obtained. Thus, starting the measurement from the position on the rear side by the predetermined front and rear dimension F is because when the measurement is started from the tip of the irregular-shaped object B,
This is because the tracing styluses 5 are caught when the tip surface is nearly vertical.

Next, the tracing stylus 5...
Is made to advance, and the tip of the tracing stylus 5... Is again brought into contact with a position on the rear side by a predetermined front and rear dimension F from the tip of the irregular-shaped object B as shown in FIG.

Thereafter, the irregular-shaped object B is sent forward as shown by an arrow H, and after passing through the state of FIG. 4D, all the measuring elements 5 are connected as shown in FIG. The cross-sectional area when cut on a plane perpendicular to the feed direction is obtained at predetermined pitches until the full length is removed from the rear end of the irregular-shaped article B and the remaining cross-sectional area distribution is obtained. Note that the predetermined pitch is preferably, for example, 1 to 3 mm.

Next, based on the distribution of the cross-sectional area, the position of a dividing plane that divides the irregular-shaped object B into a plurality of regions of a predetermined volume in the feed direction is obtained. This will be described in detail.
In (see FIG. 1), the volume of each predetermined pitch is calculated by multiplying the cross-sectional area of each part by a predetermined pitch, and the total volume of the predetermined pitch is calculated to obtain the total volume of the irregular-shaped object B. Further, the volume of one divided piece is obtained by dividing the entire volume by the number to be divided. Then, the volume for each predetermined pitch is sequentially added from the front end to the rear end to obtain a position equivalent to the volume of the one divided piece, and that position is set as the position of the first partition plane. Next, the volume of each predetermined pitch is sequentially added from the position of the partition plane to determine the position of the next partition plane. After that, the position of the next dividing plane may be obtained by the same calculation.

Specifically, as shown in FIG. 5, when the irregular-shaped object B is divided into four regions 32a, 32b, 32c, and 32d,
The positions of the dividing surfaces 34 are determined so that the volumes of the regions are equal. That is, the lengths L ₁ , L ₂ , L ₃ , and L ₄ are determined so that the volumes of the regions are equal. ───. Here, since the density of the amorphous material B is uniform, each region 32
The weights of a, 32b, 32c, and 32d are equivalent.

Then, as shown in FIG. 6, the irregular-shaped object B is cut along the dividing surfaces 34. That is, the position of the stopper main body 33 of the stopper mechanism 7 is automatically adjusted by the control means 8 (see FIG. 1) which has received the calculation result signal of the calculation means 6, and the unfixed object B is fed forward. give. When the tip of the irregular-shaped object B comes into contact with the stopper body 33, the irregular-shaped object B stops. In this state, the cutter 4 is lowered to cut the irregular-shaped object B.

Next, as shown in FIG.
Is raised, the dispensing mechanism 2 is operated, and the divided pieces 35 (area 32
Send a) forward. After that, the stopper body 33
Is lowered, and the irregular-shaped objects B are sequentially cut at the partition surfaces 34 through the same steps as described above. In this way, the amorphous material B can be cut into divided pieces having the same volume and weight (1/4 of the total weight).

In addition, the amorphous material B is １ ／ of the total weight,
It is also possible to cut into 1/3 divided pieces. Alternatively, it is also possible to cut the pieces into different pieces each having 1/4 and 3/4 of the total weight.

As described above, according to the apparatus and method for cutting an irregular-shaped object, the irregular-shaped object B can be easily and accurately cut to a desired weight. That is, it is possible to obtain a material having the same weight in an arbitrary number of divisions. When a synthetic rubber bale is used as an irregular-shaped material B in a tire manufacturing plant, the bale can be automatically cut to a desired weight at the plant, so that the number of types of bale to be ordered outside is reduced. And contribute to cost reduction.
In addition, bale management and storage are facilitated, and the storage space can be reduced. Further, according to the device for cutting irregular-shaped objects, the structure can be simplified.

The present invention can be modified in design other than the above-described embodiment. For example, the number of the cross-sectional shape measuring elements 5 is not limited to five, and may be, for example, about 6 to 8 pieces. May be good.

[0026]

Since the present invention is configured as described above, the following effects can be obtained.

According to the apparatus for cutting an irregularly shaped article according to the first aspect, the irregularly shaped article B can be easily and accurately cut to a desired weight. When a synthetic rubber bale is used as an irregular-shaped material B in a tire manufacturing plant, the bale can be easily cut to a desired weight in the plant, so that the number of types of bale to be ordered to the outside can be reduced. And contribute to cost reduction. In addition, the management and storage of the veil are facilitated. Further, the overall structure can be simplified, and the device can be easily manufactured.

According to the method for cutting an irregularly shaped object according to the second aspect, the irregularly shaped object B can be easily and accurately cut to a desired weight. When a synthetic rubber bale is used as an irregular-shaped material B in a tire manufacturing plant, the bale can be easily cut to a desired weight in the plant, so that the number of types of bale to be ordered to the outside can be reduced. And contribute to cost reduction.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of an irregular-shaped object cutting device according to the present invention.

FIG. 2 is a plan view.

FIG. 3 is an explanatory view of a cutting method.

FIG. 4 is an explanatory view of a cutting method.

FIG. 5 is an explanatory view of a section of an irregular-shaped object.

FIG. 6 is an explanatory diagram of an operation at the time of cutting.

FIG. 7 is an explanatory diagram of payout.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Feeding mechanism 3 Feeding amount measuring means 4 Cutter 5 Cross-sectional shape measuring element 6 Computing means 7 Stopper mechanism 8 Control means 34 Sectioning surface B Indefinite object C Feeding direction

Claims (2)

[Claims] 1. A feeding mechanism 1 for feeding an irregular-shaped object B
Feed amount measuring means 3 for measuring the feed amount of the feed mechanism 1
A cutter 4 that cuts the irregular-shaped object B at a plane perpendicular to the feeding direction; and a cutter 4 that contacts the outer surface of the irregular-shaped object B and is movable in accordance with a change in the cross-sectional shape of the irregular-shaped object B. A plurality of cross-sectional shape measuring elements 5, a measured value of the cross-sectional shape measuring elements 5, and a feed amount by the feed amount measuring means 3 are operated to divide the irregular-shaped object B into a plurality of predetermined volume areas.
, A stopper mechanism 7 for stopping the irregular-shaped object B, and receiving the dividing-surface position signal from the computing means 6, the irregular-shaped object B is cut at the dividing surface 34. And a control means (8) for controlling the stopper mechanism (7) so as to stop at a predetermined position. 2. A feed is given to the irregular-shaped object B while a plurality of cross-sectional shape measuring elements 5 are in contact with the outer surface of the irregular-shaped object B, and the cross-sectional area when cut along a plane perpendicular to the feeding direction C is calculated. The cross-sectional area distribution is obtained at every predetermined pitch in the feed direction C, and based on the cross-sectional area distribution, the position of the partition surface 34 that divides the irregular-shaped object B into a plurality of predetermined volume areas in the feed direction C is determined. ,
And cutting said irregular-shaped object B at said dividing surface.