JPH0428519B2 - - Google Patents

Description

Detailed Description of the Invention [Field of Industrial Application] The present invention aims to effectively utilize end hoses (that is, cut-off hoses) generated when manufacturing rubber hoses of a certain length. The present invention relates to a hose cutting device that most effectively cuts product hoses having predetermined standard lengths of a plurality of types having different diameters and lengths from a hose.

[Conventional technology] Conventionally, when manufacturing rubber hoses, workers manually measure the effective length of the end hoses that can be used as products, and then determine how many hoses of which standard length can be cut from the end hoses. Based on calculations, the most effective cuts were made manually.
There has not yet been a device that mechanically automates a series of operations such as measurement, judgment, and cutting. Therefore, the efficiency of manufacturing rubber hoses from terminal hoses was low because measuring, cutting, etc. were done manually, and mental effort was required to determine the most effective cutting method.

[Problems to be Solved by the Invention] Therefore, the present invention has been made to improve these drawbacks, and in order to effectively utilize the terminal hose, it is possible to cut the end hose to the most effective dimensions and to The purpose of the present invention is to provide a cutting device that automates the process up to the process of sorting product hoses according to their dimensions.

[Means and effects for solving the problems] The present invention provides a rail member that slides and guides a hose, an action member that slides along the rail member while holding the hose, and a sliding member of the action member. means for detecting a moving distance; an origin detection sensor for detecting the sliding origin of the action member; a position detection sensor for detecting the tip of the hose being slid; and a means for detecting the sliding distance of the hose; a hose cutting member that cuts the hose, a hose sorting device that sorts the hose cut by the hose cutting member according to its size and discharges it from the rail member, the origin detection sensor, the position detection sensor, and the operation. means for detecting the sliding distance of the member; and a control device for driving the operating member, the hose cutting member, and the hose sorting device after predetermined signal processing; is between a data storage unit that stores a plurality of predetermined standard lengths of hoses, and a position of the sliding origin that corresponds to a position of a base end of the hose held between the action members and a position of the position detection sensor. The length of the hose is calculated from the difference between an interval length equal to the distance and a sliding length equal to the sliding distance of the action member until the position detection sensor detects the tip of the hose, and a length calculation unit that calculates the effective length of the hose by subtracting a predetermined length of the truncated portion of the hose from the length of the hose; and the standard length that stores the calculated effective length and the data storage unit. a calculation unit that selects a combination of optimal standard lengths that minimizes the truncated portion of the base end of the hose that does not become a product based on the above, and an action signal that initially drives the action member until the position detection sensor detects the tip of the hose. and a sliding control that outputs an action signal for sliding the action member based on a combination of optimal standard lengths selected by the calculation section for cutting the hose from the position at the end of the initial drive. a cutting control section that outputs an action signal for activating the cutting member; and a sorting control section that outputs a sorting signal to the hose sorting device based on the combination of the optimum standard length selected by the calculation section. This is a hose cutting device characterized by:

FIG. 1 is a block diagram representing the concept of the present invention.

The rail member 1 is a member for sliding and guiding the hose 8. The hose 8 is set on the working member 2 with its proximal end always aligned in the same position, for example by manual operation or some kind of handling device, and then the working member 2 clamps the hose 8 so as not to be relatively movable.

The operating member 2 is configured to be able to slide on the rail member 1, and also serves as a means for detecting the sliding distance of the member to be used (i.e., itself) 2 in the present invention. Here, the action member 2 always returns to its original position (sliding origin in the present invention) before sliding, and in order to simplify and clarify the following explanation, the clamped hose 8 is The position of the base end is regarded as the origin position. Further, an origin detection sensor 3 is provided to detect the origin position of the action member 2 on the rail member 1 .

The origin detection sensor 3 can be composed of a mechanical limit switch, an optical switch, or the like. A position detection sensor 4 for detecting the tip end 8a of the hose 8 is provided along the rail member 1 in a direction opposite to the original position.

The position detection sensor 4 can use a mechanical contact or a photoelectric switch such as a photocoupler. The means for detecting the sliding distance of the action member 2 is as follows:
For example, it can be configured by a pulse motor that is built into the action member 2 and slides the action member 2. That is, since the number of input pulses and the sliding distance of this pulse motor are proportional, the sliding distance is detected from the number of pulses input to the pulse motor.

The hose cutting member 5 is preferably provided near the position detection sensor 4 on the origin position side, and has a blade or a press mold for cutting.

The hose sorting device 6 sorts the hoses cut into different sizes by the hose cutting member 5 by size. Origin detection sensor 3 and position detection sensor 4
The output signals from the and means for detecting the sliding distance of the action member 2 are input to the control device 7. The control device 7 can be realized by analog and digital electronic circuits or by a computer device. The control device 7 has six functional blocks. That is, the first
The block is a data storage section 71 that stores a plurality of predetermined standard lengths. The second block is a length calculation section 72a that calculates the effective length of the hose. The third block is a calculation unit 7 that performs calculations to select the most optimal combination of standard lengths from the standard lengths stored in the data storage unit and the effective length of the hose 8.
It is 2b. The calculation section 72b controls various signals, sends a sliding start signal to the sliding control device 73, and outputs an operation control signal for cutting the hose to the cutting control section 74. The fourth block is a sliding control section 73 which has the function of sending a signal to the working member 2 to move the working member 2. The fifth block is a cutting control section 74 having a function of outputting a control signal for driving a circuit for starting the hose cutting member 5 based on a signal from the calculation section 72b. 6th
The block sorts the product hoses 80 cut from the hose 8 according to the dimensions according to signals from the calculation section 72b and the cutting control section 74, and separates the product hoses 80 from the rail member 1. This is a sorting control section 75 that outputs a control signal for discharging.

The device of the present invention has such a configuration.

Next, its effect will be briefly explained. First, the hose 8 is held between the action member 2 with its base end aligned with the origin position by manual or automatic operation, and then the origin detection sensor 3 detects that the action member 2 is at the origin position. The signal is sent to the sliding control section 7.
3. It is transmitted to the length calculation section 72a. Arithmetic unit 72
b receives this signal and drives the sliding control section 73 to initially slide the hose 8 along the rail member 1. At this time, the sliding control section 73 is configured to count the amount of sliding of the action member 2. Specifically, it is desirable to store the initial sliding amount in the sliding control section 73 using a feedback signal obtained by measuring the amount of initial sliding from the action member. When the hose 8 initially slid in this way reaches the position where the position detection sensor 4 is installed, its tip 8a is detected, and the output signal of the position detection sensor 4 is sent to the length calculation section 72.
a, input to the calculation section 72b. The calculation unit 72a receives this signal and issues a command to the sliding control unit 73.
The initial sliding movement of the working member 2 is stopped.

Next, the length calculation unit 72a calculates the distance between the origin position (sliding origin position in the present invention) that corresponds to the position of the base end of the hose 8 held between the action member 2 and the position of the position detection sensor 4. The length of the hose 8 is calculated from the difference between the interval length equal to the distance and the sliding length equal to the sliding distance of the action member 2 until the position detection sensor 4 detects the tip of the hose 8. The effective length of the hose is determined by subtracting a predetermined length of the truncated portion from the length of the hose 8, taking into account the truncated portion due to the roughness of the cut at the tip of the hose 8.

As described above, the calculation unit 72b selects a combination of cutting methods that minimizes the truncated portion of the proximal end from among various cutting methods.

The sliding control unit 73 slides the action member to a predetermined position where the first cutting length is obtained, and outputs a stop signal when the operating member reaches the optimum cutting position.

The cutting control section 74 transmits the control signal to the hose cutting member 5.
and cut the hose.

The sorting control section 75 inputs a hose cutting completion signal from the cutting control section 74 and a dimension signal specifying the dimensions of the cut product hose from the calculation section 72b, and sends the sorting signal and discharge signal to the hose sorting device 6.
The hose sorting device 6 sorts the product hoses according to the input signals and discharges them to a predetermined location. By repeating this cycle, hose 8
is cut into a predetermined number and standard length to complete the entire process.

[Examples] Next, the present invention will be described based on more specific examples.

FIG. 2 is a block diagram of a specific device according to an embodiment of the present invention. Parts corresponding to the block diagram showing the inventive concept in FIG. 1 are given the same numbers. Here, only the points different from the block diagram of FIG. 1 will be explained. The operating member 2 is a deviation counter 21
and a motor drive circuit 22, the motor drive circuit 2
2 and a support member 24. The support member 24 is a member that holds the hose 8. The support member 24 is fixed to a pulse motor 23, and the pulse motor 23 rotates and moves by the action of a rack provided on the rail member 1 and a pinion provided on the shaft of the pulse motor 23.

A numerical value for controlling a predetermined sliding amount is input into the deviation counter 21 in response to a command from a CPU, which will be described later.

The control device 7 is composed of a computer device 7a and a sequencer 7b. computer device 7a
consists of an input interface 75, an output interface 76, a CPU 77, a memory 78, etc.

On the other hand, the hose cutting member 5 is connected to the cylinder control device 5.
1, a cutting cylinder 52, and a cutter 53. The cutter 53 is activated by the action of the cutting cylinder 52 to cut the hose 8.

The cylinder control device 51 is a device for controlling application or cutoff of hydraulic pressure to the cutting cylinder 52. Further, a limit switch 31 was used as the origin detection sensor 3, and a photocoupler 41 was used as the position detection sensor 4. Forward and backward buttons 27 and 28 are used in the manual operation section 26 of the pulse motor 23.

The drive source of the hose sorting device 6 is a motor 691,
It is composed of air cylinders 609, 617, and 667. The input device 65 for smoothly controlling the operation of the device of the present invention is composed of a push button switch 60, a limit switch 67, and the like. A sequencer 7b that controls the sequential operation of the apparatus of the present invention controls the hose cutting member 5 and the hose sorting device 6 in response to signals from the computer device 7a, the origin limit switch 31, the input device 65, and the like.

FIG. 3 is a perspective view of the rail member 1 of the device of the present invention when the hose supply unit 68 that automatically supplies a terminal hose is connected to the device of the present invention. Arrows 9A to 9D indicate the direction in which the supplied hose 8 is cut and moved to the final process of the hose sorting device 6.

FIG. 4 is a front view mainly showing the structure of the mechanism of the rail member 1, the action member 2, and the hose cutting member 5.

An inverted V-shaped guide rail 11 is provided in a part of the horizontal bed 12. A hose 8 is disposed in the V-shaped groove of the guide rail 11. The hose 8 is clamped by a chuck 241. The chuck 241 has an arm 24 connected thereto.
2. It is supported by a support member 24 consisting of a rod 243. Rod 24 of the support member 24
3 is fixed to the housing of the pulse motor 23. A pinion 2 is attached to the rotating shaft of the pulse motor 23.
31 is provided, and a rack 25 is disposed on the bed 12 in engagement with a pinion 231. When the rotor of the pulse motor 23 rotates and the pinion 231 rotates, the pulse motor 23 slides along the rack 25. For this purpose, the support element 24 can likewise be slid along the bed 12 and the hose 8 can be slid along the guide rail 11. On the other hand, a hose cutting member 5 is provided at the center of the bed 12. The hose cutting member 5 has a cutter 63 fixed to the cutting cylinder 52, and also has a holding member 54 for holding the tip of the hose 8. During cutting, the cutting portion is held by the holding member 54, and the cutter 53 is slid by the action of the cutting cylinder 52, so that the cutter 53 passes through the cutting groove 55 and the hose 8 is cut.

Furthermore, a hose sorting device 6 is provided at the upper left end of the sliding direction of the hose cutting member 5 in the sliding direction diagram, for discharging the cut hose 8 from the guide rail 11 and sorting it into the cut dimensions.

5 and 6 respectively show the hose sorting device 6.
FIG.
The figure shows a side view of the sorting device 600 and the conveying device 650.

The hose sorting device 6 includes a sorting device 600 that separates product hoses cut by the hose cutting member 5 and scrap hoses to be discarded, and a conveyor device that stores the product hoses delivered from the sorter 600 and moves them to a predetermined position. device 650 and a storage device 670 having eight buckets for storing hoses according to their dimensions.
and a drive unit 690 that drives the transport device 650.

The sorting device 600 includes guide plates 607 and 608 that temporarily receive the product hose discharged from the hose cutting member 5, plates 603 and 604 that fix the guide plates 607 and 608 that are disposed on the pedestal 601, and plates 603 and 604 that are disposed on the pedestal 601. an air cylinder 609 that is provided to move the guide plate 607 in the vertical direction; a guide groove 611 and a guide plate 613 that regulate the direction in which the cut hose freely falls when the guide plate 607 is lowered; Sorting board 615 that sorts hose scraps
and a scrap storage box 616 that stores the scrap hose.
and an air cylinder 61 that drives the sorting plate 615.
7, and a guide plate 619 that guides the product hose to the conveyance device 650.

The guide plate 607 is a transport device 6 which will be described later.
When the transport device 650 is not at the origin position, it is at a position 607A indicated by a broken line, and when the transport device 650 is at the origin position, it is adjusted by the cylinder 609 so that it is located at a position 607B indicated by a solid line. Similarly, the sorting plate 615 is arranged so that the cylinder 61 is positioned at the illustrated positions 615A and 615B depending on the product hose and the end material hose.
It is moved in 7.

The conveyance device 650 includes a movable bucket 657 for storing the product hose, a rotary plate 659 that functions as a bottom plate of the movable bucket 657, and a rotary plate 659.
an arm 661 that applies a rotational force around a rotating shaft 658; and a clamp nut 663 that supports the arm 66 and is disposed at the tip of a rod rod 665.
, an air cylinder 667 for moving a clamp nut 663, a chain 655 to which the movable bucket belt 657 and air cylinder 667 are fixed, and a sprocket 651 for driving the chain 655 disposed on the shaft 653.

The rotary plate 659 is at position 659A when receiving the product hose from the guide plate 619, and is at position 659A when the movable bucket 657 comes to the top of a predetermined storage bucket by a drive unit 690, which will be described later.
The hose is rotated so that it is in the state shown in B, and the product hose is stored in a bucket with a predetermined size.

The storage device 670 has eight buckets 681 to 6.
88 and has four wheels 673 to 676 for movement.

The drive unit 690 includes an induction motor 691 and a transmission 693 to which rotational force from the induction motor 691 is input via a joint 692 and outputs the reduced rotational force via a joint 694. The rotational force from the joint 694 is transmitted to the shaft 693.

FIG. 7 is a flowchart showing a method of controlling the computer used in this cutting device. The computer selects the diameter of the hose to be cut in step 100. That is, in this embodiment, the selection of two types of hoses with outer diameters of φ10.5 and φ12.5 is inputted in advance by pressing a push button, and the input state is read.
In the next step 102, the state of the hose diameter setting,
Based on eight types of hose standard lengths set in advance by a digital switch, combinations of one hose, two hoses, three hoses of the same size, and two hoses of different sizes are calculated and stored in memory.

Step 104 sets the position of the bucket of storage device 670 according to the combination.

Step 106 is a step to determine automatic operation or manual operation, and when the select switch on the operation panel is input to the manual operation side, step 160 is executed.
Execute the program according to the manual operation subroutine.

When the select switch is input to the automatic operation side, the process proceeds to step 108, where a home return command is issued and the operating member is slid toward the home position.
Then, when the signal from the origin limit switch 31 is input in step 110,
The sliding is stopped and the process moves to step 112. In step 112, the hose 8 is set on the guide rail 11. Next, in step 114, the pulse motor constituting the action member 2 is driven to initially slide the hose 8 along the guide rail 11. In step 116, the hose tip 7
It is determined whether or not a has been detected by the position detection sensor 4. That is, the pulse motor is driven and the hose slides until it is detected by the position detection sensor 4. In step 118, the number of pulses driving the pulse motor is read. That is, this value corresponds to the sliding length. Next, the process moves to step 120, and the sliding length is subtracted from the interval length from the origin position (in this embodiment, the base end position of the hose set at the original position is taken as the origin position) to the position detection sensor 4. Then, calculate the length of the hose, and then calculate the effective length LA by subtracting the predetermined length of the cut-off part from the hose length, taking into account the cut-off part due to the roughness of the cut at the end of the hose. . Next, proceed to step 122. Steps 122 to 124 are steps of comparing the effective length LA with the table of combination data calculated in step 102, and driving the pulse motor one step until the data corresponding to the LA is found in the table. It is. Therefore, the effective length LA gradually decreases, and when the effective length reaches LAA, if the corresponding data is found in the table, the process moves to step 130 and a signal is sent to activate the hose cutting member 5. . That is, in step 130, the truncated portion at the end of the hose is cut off. In step 132, the cut portion is stored in the scrap storage box 616 using the guide plate 607 and sorting plate 615.

Steps 134 and 136 are steps for cutting the product hose at the next cutting length.

Step 138 is a step in which the cut product hoses are stored in a predetermined storage bucket of the hose sorting device 6. The guide plate 607A is lowered, and the product hose is moved to the rotating plate 65 of the conveying device 650.
9 and stored in the movable bucket 653. The sprocket 651 is rotated clockwise by the motor 691 of the drive device 690, and the conveying device 650 fixed to the chain 655 is moved in the direction of the arrow 652. According to the conditions set in steps 100 to 104, when the product reaches a predetermined storage bucket, the conveying device 650 stops, the rod 665 of the cylinder 667 moves forward, and the product hose falls into the storage bucket due to free fall. . Thereafter, the rod of the cylinder 667 is retracted, and the conveying device 650
is moved in the direction of arrow 654, returns to the origin position, and stops. Repeat this periodically,
When the process moves to step 140 and all the parts have been cut, the proximal end cut portion of the hose 8 is released from the action member 2, and this released proximal cut portion is attached to the above-mentioned hose tip. Like the cut-off portion, it is stored in the scrap storage box 616. Thereafter, the process proceeds to step 142, where the message "cutting completed" is displayed, and the process proceeds to step 144, where the pulse motor 23 is driven to return to the origin. When the origin signal is detected by the origin limit switch, the operation is stopped there. It can be executed in this way.

After stopping at step 150, when the operator presses the start button, the above-described execution starts from step 100.

According to this embodiment, by sliding a hose of variable length in a certain direction, the effective length of the hose is calculated from the amount of sliding, and based on that, the effective length of the hose is calculated from various standard lengths input in advance. The hose is cut by selecting the most optimal combination from among them, the cut portion is stored in the scrap material storage box, and the product hoses can be sorted into predetermined storage buckets according to their dimensions.

[Effects of the Invention] According to the present invention, it is possible to cut a plurality of hoses of various fixed standard lengths from a hose of indefinite length, and since a hose sorting device is provided, the cut portion and the product hose can be separated. Since products that can be classified and have different length and diameter dimensions are automatically classified, there is no need for product sorting work, reducing labor and eliminating erroneous classification. Furthermore, since the length of the hose is measured from the amount of sliding of the hose during the sliding required for cutting the hose, the cutting process can be shortened. Since the apparatus of the present invention is automated, it has great effects in reducing product costs and improving work efficiency.

Furthermore, as is obvious from the embodiments described above,
Since hose length measurement, hose cutting, and hose sorting are carried out consecutively using the same device, the hose only needs to be aligned once, and there is no need to measure or remeasure the hose length before sorting the hose, making the work much easier. This has the advantage of improving efficiency.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the concept of the apparatus of the present invention. FIG. 2 is a block diagram showing the configuration of a hose cutting device according to a specific embodiment of the present invention. FIG. 3 is a perspective view showing the entire apparatus of the embodiment. 4 to 6 are configuration diagrams showing the mechanical parts of the device according to the embodiment, in which FIGS. 4 and 6 are front views, and FIG. 5 is a plan view. FIG. 7 is a flowchart showing the computer control used in the same embodiment. DESCRIPTION OF SYMBOLS 1...Rail member, 2...Action member, 3...Origin detection sensor, 4...Position detection sensor, 5...Hose cutting member, 6...Hose sorting device, 7...Control device, 71...Data Storage unit, 72a... Length calculation unit, 72b... Calculation unit, 73... Sliding control unit, 74... Cutting control unit, 75... Sorting control unit.

Claims (1)

[Scope of Claims] 1. A rail member that slides and guides a hose; an action member that slides along the rail member while holding the hose; means for detecting a sliding distance of the action member; an origin detection sensor that detects the sliding origin of the action member; a position detection sensor that detects the tip of the sliding hose; a hose cutting member disposed on the rail member that cuts the hose; a hose sorting device that sorts the hoses cut by a hose cutting member according to their dimensions and discharges them from the rail member; and means for detecting a sliding distance between the origin detection sensor, the position detection sensor, and the action member. a control device that inputs an output signal from the hose and, after predetermined signal processing, drives the acting member, the hose cutting member, and the hose sorting device; an interval length equal to the distance between the position of the sliding origin and the position of the position detection sensor, which corresponds to the position of the proximal end of the hose held between the action members;
The length of the hose is calculated from the difference from the sliding length equal to the sliding distance of the action member until the position detection sensor detects the tip of the hose, and the length of the hose is calculated from the calculated hose length. a length calculation section that calculates the effective length of the hose by subtracting a predetermined length of the tip truncated section; and a hose base that will not become a product based on the calculated effective length and the standard length stored in the data storage section. a calculation unit that selects a combination of optimal standard lengths that result in the smallest cut-off portion at the end; and a calculation unit that outputs an action signal that initially drives the action member until the position detection sensor detects the tip of the hose, and outputs an action signal that initially drives the action member, and a sliding control unit that outputs an action signal for sliding the action member based on the combination of optimal standard lengths selected by the calculation unit for cutting the hose from the end position; and operating the cutting member. and a sorting control section that outputs a sorting signal to the hose sorting device based on the combination of optimal standard lengths selected by the calculation section. .