JPH0730497Y2 - Band cutter for multi-strand band coil - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention is an improvement of a band cutter for cutting and processing a metal band (hereinafter simply referred to as a band) in which metal coils (hereinafter simply referred to as a coil) are bound together. More specifically, the present invention relates to a band cutter for cutting a band of a multi-strand banding coil.

[Conventional technology]

Conventionally, when carrying, transporting, and handling a coil, a band has been used to bind the coils together. Therefore, when the coil is reprocessed and processed, it is necessary to cut the binding band, and a band cutter has been used as an automatic machine for this purpose.

When cutting and processing the band of the coil with a band cutter, the position of the band tightened on the coil often shifts due to various circumstances in the coil transportation, transportation, and handling until the process concerned. A method has been adopted in which both blades of the cutter are moved toward the center while searching for the band from both sides of a considerably wide stroke centering on the supposed expected position of.

Further, recently, as described in JP-A-62-16330, the band position of the coil is detected in advance by the amount of movement from the movement start position of the band detection carriage, and the amount of movement is detected by the band. By sending a signal to the cutter and bringing the cutter head into contact with the vicinity of the band position, it is possible to prevent a large error between the coil contact position of the cutter head and the band position and to eliminate the conventional manual correction. .

However, recently, a new problem has been raised due to the increase in size of the coil and the accompanying increase in the number of bands for banding. In other words, instead of confirming the band position in advance and dealing with this indirectly after the fact, it is necessary to take a reliable means of immediately and mechanically catching the band position and immediately stopping the cutter head. There is some difficulty and waste in dealing with this.

In addition, the "shift" of the band position causes the band intervals to be narrow and wide, so that multiple bands can be accommodated and gripped within the stroke of the blades of the cutter, and the cutter can simultaneously catch two or more bands. It often happens that the cutting operation is disabled.

[Problems to be solved by the invention]

As described above, the band cutter trouble caused by gripping a plurality of bands has a great influence on the coil processing line that performs high-speed continuous work, and has been a serious defect that hinders the productivity of the line.

The inventor of the present invention has conducted intensive studies to solve the problems of the band cutter due to such simultaneous multiple band catches, and has reached the solution.

[Means for solving problems]

The present invention applies the following means in order to solve the above problems. That is, a coil band cutter including an apparatus frame, a support frame that can be brought close to and away from the coil, a post-processing mechanism for a cutting band, and a cutter head that is attached to the support frame and is movable parallel to the coil axis direction. In the cutter head,
A touch roll protruding and retracting from the cutter head toward the coil side, a phototube type coil end face detector, and a band position detector of a coil contact type mechanical structure for immediately stopping the movement of the cutter head in the coil axial direction when detecting the band position. And the opening stroke of both blades of the cutter is regulated to about twice the maximum width of the band to be cut or less. As a result, it is impossible for two or more bands to fit simultaneously within the opening stroke of the cutter's double-edged blades with a probability close to 100% based on actual results statistics, and the band cutting work of the multi-strand band-hanging coil is performed accurately. A band cutter that can be used is provided.

[Operation] A band cutter for a multi-strand banding coil according to the present invention (hereinafter referred to as the present band cutter) installed behind the entry coil base of the coil processing line is mounted on the entry coil base in the same manner as a known band cutter. The cutter head comes into contact with the coil due to the vicinity of the support frame, but the present band cutter has a characteristic and different action from this point. That is, first of all, it is the touch roll of the cutter head that first touches the coil. The touch roll protrudes slightly to the coil side from the coil contact surface of the other devices that the cutter head accommodates, that is, the band position detector and cutter (it can also be retracted by the control system). The detector and cutter are not in contact with the coil surface at this point. Here, the photoelectric tube of the coil end face detector detects whether or not the coil actually exists at that position (with respect to the axial direction of the coil) [actually, the range of movement of the cutter head in the axial direction of the coil is restricted, Even at the leftmost position of the cutter head (in the first embodiment), the coil end surface detector does not protrude from the coil end surface, but this operation is performed due to the relationship with the function to be described later and the relationship for cutter head maintenance] , The touch roll retracts and the band position detector contacts the coil surface. Thus, the cutter head begins to move to the right (in the example) parallel to the coil axis direction. At this time, the cutter is not yet in contact with the coil surface. Immediately after the band position detection device detects the band in the process of movement, the movement of the cutter head is stopped, the cutter comes into contact with the coil surface at that position, and both blades clamp the band to cut it. At this time, the interval (stroke) between the two blades of the cutter is about twice the band width or less, and it is unlikely that two or more bands will be present within that interval, so it is certain that only one The band is cut.

Thus, one end of the cut of the band is guided to the post-processing mechanism of the cutting band and curled into a very small roll (there is also a method of tipping into small pieces by a chipper, etc.), but at this time, the cutter leaves the coil surface again At the same time, both blades are opened by a predetermined stroke to prepare for the next cut. When the post-processing of the cutting band is completed, the cutter head starts moving to the right again, the band position detector searches for the next band, and when the band is detected, the band cutting and post-processing are performed as described above. . Unfortunately, the control mechanism of the band cutter has previously input and memorized the number of band sections of the coil for which the band is to be cut, so that the number of band cutting processing is specified. When the number is satisfied, the cutter head is returned and the band cutting process of the coil is completed.

As a supplementary note, if the result of band position detection is outside the expected position of the band separately input to the control mechanism,
It shows that the band is laid on the roll rather than in the cradle roll groove of the coil base, and accordingly, the touch roll of the cutter head protrudes, and the rotation of the grade roll and the accompanying rotation of the coil For the sake of simplicity), the maintenance of each device of the cutter head is intended.

〔Example〕

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the drawings.

A side view of the present band cutter 1 is shown in FIG. 1 and a plan view thereof is shown in FIG.
A so-called rocking arm type support claim in which the cutter head 30 is axially mounted so as to be proximate to the coil 90, and is installed so as to be movable parallel to the axial direction of the coil 90 at its tip portion.
20 is provided so that the air cylinder 25 swings. The support frame 20 may adopt a travel system by horizontal movement.

A post-processing mechanism 70 for the cut band 80 is provided on the top of the device frame 10.

The cutter head 30 is shown in FIG. 3 as a front view taken along the line AA of FIG. 1 and as a side view in FIG. It is configured so as to move laterally by the air cylinder 35 in parallel with the axial direction of. Then, the band position detector 40, the coil end face detector 50, and the cutter 60 are housed respectively.

When contacting the surface of the coil 90 of the cutter head 30,
Prior to the direct coil touch of the band position detector 40 to be housed in the coil, the touch roll 31 is coiled in a protruding state.
The touch roll 31 is configured so that it touches 90.
Uses an air cylinder as its support to project and retract.

A detailed view of the band position detector 40 is shown in a front view in FIG. 5 (viewed along the line BB in FIG. 3) and a side view in FIG. 6 (C in FIG. 5).
Although the detector 46 is supported by a spring 44 on the main body of the detector, the band touch finger 41 is shown in FIG.
Is supported by a pin 43 and a spring 42. And
When the band position detector 40 makes a search movement of the band 80 in the direction of the arrow P (by the air cylinder 35) and the band touch finger 41 contacts the band 80, the detector 46 supported by the pin 43 resists the spring 44. The proximity switch 45 provided on the detector main body is brought into proximity, and the movement in the arrow P direction is stopped by the operation of the proximity switch 45.

In addition, the spring 42, the band touch finger 41,
The purpose is to constantly deal with slight undulations and depressions on the surface of the coil 90.

The coil end face detector 50 is provided on the upper portion of a cutter 60, which will be described later, as can be seen in FIGS. 3 and 4, and employs a known photoelectric tube system. After the proximity of the support frame 20 to the coil 90 and the coil touch with the touch roll 31, it is detected whether or not the coil 90 exists at the position (the moving range of the cutter head 30 and the placement of the coil 90 on the coil base 15). From the placement situation, the presence of the surface of the coil 90 at that time is surely present, but it is because of the maintenance design and the reason to be described later), and it is continuously detected until the cutter head 30 retracts after that. Then, the existence of the coil 90 is input to the control mechanism (not shown) of the band cutter 1 by a signal. With this signal, the touch roll 31
Is retracted, and the support frame 20 causes the band position detector 40 to contact the coil 90.

The cutter 60, as can be seen in FIGS. 1, 3 and 4,
It is provided on the upper part of the cutter head 30, and is constructed so that the band position detector 40 contacts the surface of the coil 90 by the air cylinder 65 at the position where the band position detector 40 detects the band 80. The cutter 60 is the same as a known cutter that sandwiches and cuts the band 80 from both sides by bringing both blades (not shown) close to each other, but in the present invention, the opening stroke of the two blades is about 300 mm which is conventionally known. However, in this embodiment, it is regulated to about 60 mm. This means that the band 80 to be cut by the band cutter 1 has a maximum width (currently, the band width applied to the metal coil 90 is 32 m).
m, 25mm, 19mm is generally used, and the maximum width of 32mm is assumed to be set to 60mm), but it is regulated within about 2 times, but the meaning of this about 2 times is the band cut cycle. In, is considered in relation to the problem of the probability that a plurality of bands 80 cannot exist in the double-edged stroke, in the present embodiment, for example, double-edged stroke 70 mm.
Even if it is made into a degree, it corresponds to the expression of about twice.

The post-processing mechanism 70 of the cut band 80 is the same as a known one, and there are vine winding treatment, chip treatment and the like, but in this embodiment, the vine winding treatment system is adopted.

The operation of the present embodiment has been described in the section of [Operation] and the description of the configuration in the embodiment, and will be omitted.

Although not shown, the operation control of the band cutter is sequentially and automatically performed by a separately provided control mechanism.

Further, in the above-mentioned coil end face detector 50, when the number of bands of the coil 80 to be cut is not input to the control mechanism, the cutter head 30 is further cut after the last band cutting.
When the coil head 30 continues to move laterally, the coil end surface detector 50 detects that the end surface of the coil 90 has come off, and the cutter head 30
The horizontal movement of the blade is stopped and the support frame 20 is returned (when the stroke limit (range) of the cutter head 30 is reached, the coil 90 is also returned) [Effect] By the implementation of the present invention In the band cutting process of the multi-strand banding coil, the band is surely cut one by one, so that smooth production activities can be performed without impeding the productivity of the coil processing line that performs high-speed continuous work. .

It should be noted that the band cutter of the present invention does not have to be applied only to the multi-strand banding coil, and because of the necessity of the coil processing line, band cutting can be performed even when processing a single banding coil. Nor.

[Brief description of drawings]

The drawings show one embodiment of the present invention. FIG. 1 is a side view thereof, and FIG. 2 is a plan view thereof. FIG. 3 is a front view of the cutter head, and FIG. 4 is a side view. FIG. 5 is a view on arrow BB in FIG. 3, and FIG. 6 is a view on arrow CC in FIG. 1 ... This band cutter, 10 ... Device frame 15 ... Coil stand, 16 ... Cradle roll 20 ... Support frame, 21 ... Rail 25 ... Air cylinder, 30 ... Cutter head 31 ... Touch roll, 35 ... Air cylinder 40 ... Band position detection Machine, 41… Band Touch finger 42… Spring, 43… Pin 44… Spring, 45… Proximity switch 46… Detector, 50… Coil end face detector 60… Cutter, 65… Air cylinder 70… Post-processing mechanism, 80… Band 90 ... coil.

Claims (1)

[Scope of utility model registration request] 1. A coil comprising an apparatus frame, a support frame which can be moved toward and away from the coil, a post-processing mechanism for a cutting band, and a cutter head which is attached to the support frame and is movable parallel to the coil axis direction. In the band cutter of the above, a touch roll that projects from the cutter head and retracts toward the coil, a coil end face detection of a photoelectric tube method, and a coil contact type that immediately stops the movement of the cutter head in the coil axial direction when the band position is detected. With a mechanical band position detector,
A band cutter for a multi-strand band-hanging coil, characterized in that the opening stroke of both blades of the cutter is restricted to approximately twice the maximum width of the band to be cut.