JPH0524070Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention is made by scraping small raw cotton lumps from an upright solid raw cotton lump, that is, open bale raw cotton, after unpacking in a spinning factory. This invention relates to a foreign matter detection device for detecting and monitoring foreign matter such as metal pieces in raw cotton in an automatic raw cotton supplying device for feeding raw cotton into a machine.

[Conventional technology]

Generally, as an automatic raw cotton supply device for scraping small raw cotton lumps from open bales of raw cotton and supplying them to a mixing and batting machine, the raw cotton is scraped off from above the open bales by a scraping means that can be raised and lowered, and then the raw cotton is emptied. It is known that air transport is carried out via a transport duct.

However, bolts,
Metal pieces such as nuts may be mixed in, and are removed when feeding conventionally by hand.
Metal pieces may not be removed by automatic raw cotton feeding, but may be mixed with the opened raw cotton and fed directly to the mixing machine, or metal pieces may come into contact with opening opener teeth, rollers, etc.
Not only can this damage the device, but it can also generate sparks and cause a fire.

The problem of metal fragments being mixed into the raw cotton during the mixed batting process of spinning is one of the most important issues, as it is directly related to fires, and is a point of constant concern.

[The problem that the idea attempts to solve]

For this reason, conventionally, as shown in Japanese Patent Application Laid-Open No. 61-207628, a magnetic roller is provided in the hood so that the metal pieces in the raw cotton are attracted and removed by magnetic force, and the metal pieces that migrate together with the tuft are absorbed by the magnetic rollers. It has been proposed that the metal pieces be adsorbed to a roller and discharged from the system by rotating the roller, but since the metal pieces are first disposed of in the opening section, damage and fire accidents at that section can be prevented. There is no guarantee that it will work, and in fact, maintenance and management are complicated, and there are also safety issues.

The present invention aims to accurately eliminate these conventional drawbacks.The opening part of the raw cotton supply device scrapes the cotton clumps from the upper surface of the raw cotton. Detects contaminating metal particles before they hit the opener teeth, prevents accidents, allows tufts to be produced in a safe state at all times, eliminates foreign material contamination, greatly improves product quality, and reduces production volume. The purpose is to provide a device that can be operated without any problems.

[Means to solve the problem]

In the present invention, when the open bale raw cotton placed on a movable or fixed table is opened in the opening section, the copying member 1 that comes into contact with or comes close to the surface of the open bale raw cotton A is attached to the opening section frame 2. In an automatic raw cotton supplying apparatus that is equipped with a metal sensing section 3 on the tracing member 1 and equipped with a display section 4 that is capable of swinging freely, the tracing member 1 is equipped with a display section 4 that issues an alarm or lights up or flashes a lamp based on the signal detected by the metal sensing section 3. The copying member 1 is pivotally mounted via a bracket 9 to a vertically movable frame 2 provided in a bale opener for opening the open bale raw cotton A, and a spring 10 applies an urging force slightly smaller than the weight of the copying member 1. This foreign object detection device is characterized in that the metal sensing portion 3 is brought into contact with the upper surface of the open bale raw cotton A while keeping the metal sensing portion 3 in a horizontal state with respect to the surface of the open bale raw cotton A.

[Effect]

In the foreign matter detection device of the raw cotton supply device for tuft production in the present invention, the opener roller 12 in the opening section frame 2 is driven to rotate to scrape off the upper surface fibers of the open bale raw cotton A, and the scraped tuft is placed under the hood. 14 and duct 13 to the next process, and the copying member 1 on the opening frame 2 is urged upward by the spring 10 to improve cushioning properties without causing deformation of the open bale raw cotton A. The metal sensing part 3 responds to a foreign object such as a minute metal piece (for example, a metal piece at a depth of about 50 to 60 mm) contained in the open bale raw cotton A, that is, the permanent magnet 5
When a metal piece moves within the magnetic field of the tip NS of It is sufficient to stop the apparatus including the conveyor, remove the metal pieces, restart it, and continue operation, and the opening operation can be carried out safely at all times without deforming the opened bales of raw cotton A. The open bale raw cotton A is the tower B.
A rotary opener roller 12 on the opener frame 2 is mounted on a turntable C disposed in close proximity to the opener frame 2, is rotationally driven by a motor D, is moved directly below the opener frame 2, and is moved up and down to the tower B.
Efficiently scrape off the tufts with opener teeth 11,
It is possible to efficiently produce fine and uniform tufts at all times.

〔Example〕

An embodiment of the present invention will be described with reference to FIGS. 1 to 5. Opener teeth 1 for scraping the surface of open bale raw cotton A
A duct 1 rotatably equipped with an opener roller 12 having a
In an automatic raw cotton supplying apparatus, a hood 14 to which a hood 3 is connected, and a presser guide plate 15 that covers the lower surface of the opener roller 12 and regulates the amount of protrusion of the opener teeth 11 are arranged on an opener frame 2 that can be raised and lowered on a tower B. , a copying member 1 is swingably provided on the spreader frame 2 in contact with or close to the surface of the open bale raw cotton A placed on a table C, a traveling conveyor, a fixed base, etc. A metal sensing unit 3 is provided in the metal sensing unit 3, and a display unit 4 that issues an alarm or lights up or flashes a lamp based on the signal detected by the metal sensing unit 3.
This foreign matter detection device is installed on the copying member 1, the opening section frame 2, the tower B, or the like.

The copying member 1 includes a frame 2 that can be raised and lowered and is provided on a bale opener that opens open bales of raw cotton A.
The metal sensor 3 is pivotably mounted on the metal sensor 3 via a bracket 9, and is biased in one direction by a spring 10 to keep the metal sensor 3 in a horizontal state, that is, to open it with a small contact force that does not cause deformation. Although the configuration is such that it contacts the upper surface of the open bale raw cotton, it may also be held close to the top surface without contact, or the open bale raw cotton A
A pressure equalizing member or a contact member disposed not only on the upper surface but also on the side surface or the bottom surface can be used alone or in combination.

Note that the copying member 1 is equipped with sensors such as limit switches L ₁ and L ₂ that detect the upper and lower limits of the moving range, and displays the appropriate sensing range of the moving frame by contact with a protruding stopper piece (not shown). The opener frame 2 is supported by coil springs 10 attached to the entire opening frame 2 and both ends thereof, and is moved up and down in accordance with the movement of the opener frame 2. In addition, it is possible to always know whether the sensing part is operating in a horizontal state and its appropriate range, and when metal is detected, to stop at that place and to notify the position with a lamp.

As shown in FIGS. 4 and 5, the metal sensing section 3 includes a coil 7 connected to a power supply circuit 6 at the tip of a permanent magnet 5 that responds to a moving fine metal piece.
A plurality of detecting members wrapped around each other are arranged on the copying member 1 over a unit width, and each magnetic action is converted into electrical energy and displayed on the display section 4 via an amplification circuit 8 and a signal circuit. In any case, as shown in FIG. 1, a duct is rotatably equipped with an opener roller 12 having opener teeth 11 for scraping the surface of the open bale raw cotton A, and a duct capable of air transporting the scraped tufts. A hood 14 to which 13 is connected, and a presser guide plate 15 that covers the lower surface of the opener roller 12 and regulates the amount of protrusion of the opener teeth 11 are disposed on the opener frame 2 so as to be movable up and down, as shown in FIG. 6A. The open bale raw cotton is placed on a rotating turntable C or a traveling conveyor and moved, and a metal sensor is attached to the side surface of the opening part of the frame 2 to scrape the tufts from the surface of the raw cotton. Preferably, a copying member 1 is provided.

The open bale raw cotton A is placed on a turntable C placed close to the tower B, which is rotationally driven by a motor D, and is moved directly below the opener frame 2, and the opener frame 2 is moved up and down to the tower B. The tufts are efficiently scraped off with the opener teeth 11 of the rotating opener roller 12 located at the hood 14.
It is sucked into a duct 13 through a fan E, and then air-fed to a next step, a mixed batting process device F, such as a hopper bale breaker or a hopper mixer.

The automatic cotton feeder shown in FIG. 6B rotates a tower B equipped with an opener frame 2 that can be raised and lowered, and opens open bales of raw cotton A placed on a table C ₁ from its upper surface. A metal sensing part 3 is installed on the front or rear side of the rotating opener frame 2.
A copying member 1 equipped with the following is pivotally mounted.

The automatic raw cotton supply device shown in Figure 6C is installed to move back and forth to one side of a group of open bales of raw cotton A arranged in a straight line.A variation of this is to fix the automatic raw cotton supply device. , the open bale raw cotton group A may be moved back and forth by a conveyor.

[Effect of idea]

In the present invention, when the open bale raw cotton placed on a movable or fixed table is opened in the opening section, a copying member that comes into contact with or near the surface of the open bale raw cotton is urged upward by a spring. The spreading part frame is swingably provided to reduce the contact force, a metal sensing part is provided on the tracing member, and a display part is provided that issues an alarm or lights up or flashes a lamp based on the signal detected by the metal sensing part. As a result, the tracing member is always in contact with the surface of the opening part, and it can reliably detect metal particles mixed inside the open bale raw cotton without deforming the open bale raw cotton.
Accidents can be prevented, tufts can be produced safely, and there is no contamination by foreign substances, so product quality can be greatly improved, and production can be operated without reducing production, which has practical effects.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which Fig. 1 is a side view, Fig. 2 is a perspective view, Fig. 3 is a partial side view, Fig. 4 is an explanatory diagram of the metal sensing section, and Fig. 5 is a system diagram. The explanatory drawings and FIGS. 6A, B, and C are perspective views of the device in use, respectively. A...Open bale raw cotton, B...Tower, C...Turntable, D...Motor, E...Air transport fan, F
... Mixed batting cotton process device, 1 ... Copying member, 2 ... Frame, 3 ... Metal sensing section, 4 ... Display section, 5 ...
...Permanent magnet, 6...Power circuit, 7...Coil, 8
... Width increasing circuit, 9 ... Bracket, 11 ... Opener tooth, 12 ... Opener roller, 13 ... Duct, 14 ... Hood, 15 ... Presser guide plate.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A pattern that comes into contact with or comes close to the surface of the open bale raw cotton A when the open bale raw cotton A placed on a movable or fixed table is opened in the opening section. A member 1 is swingably supported on a spreader frame 2, a metal sensing portion 3 is provided on the copying member 1, and a metal sensing portion 3 is provided on the copying member 1.
is urged upward by a spring 10 with a biasing force slightly smaller than the weight of the copying member 1, and contacts the upper surface of the open bale raw cotton while keeping the metal sensing part 3 in a horizontal state with respect to the surface of the open bale raw cotton A. A foreign object detection device in an automatic raw cotton supplying apparatus, characterized in that the display section 4 is configured to perform an alarm or turn on or blink a lamp in response to a signal detected by the metal sensing section 3. (2) The copying member 1 is equipped with sensors such as limit switches L ₁ and L ₂ for detecting the upper and lower limits of the moving range, and has a mechanism for indicating the appropriate sensing range of the moving frame 2 on the display unit 4. A foreign matter detection device in an automatic raw cotton supplying device according to claim 1. (3) The opening section frame 2 is rotatably equipped with an opener roller 12 having an opener gear 11 that scrapes the surface of the open bale raw cotton A, and is connected to a duct 13 that can air-feed the scraped tufts. hood 14 and the opener roller 1
A presser guide 15 that covers the lower surface of the opener teeth and controls the amount of protrusion of the opener teeth is movable up and down. The member 1 is arranged so that the open bale raw cotton A is placed on a rotating turntable C or a traveling conveyor and moved to detect metal before opening to scrape the tufts from the raw cotton surface. A foreign matter detection device in an automatic raw cotton supplying device according to claim 1 or claim 2.