JP2006037241A - Resin fiber feeder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a resin fiber feeder with which a resin fiber w is quantitatively and uniformly supplied to concrete being mixed. <P>SOLUTION: The resin fiber feeder is equipped with a belt conveyor 100 for conveying a material to be treated of the collected resin fiber w for concrete reinforcement, a loosening treatment part 101 for dispersing and sending out the material to be treated conveyed by the belt conveyor and an air conveying part 102 for conveying the material to be treated sent from the loosening part 101 by blow force and releasing the material to a specific position. The loosening treatment part 101 comprises an inclined guide conduit 25 with the front being lower than the back, a first loosening apparatus 23 that is arranged at the transportation starting end of the inclined guide conduit 25 and disperses the material to be treated conveyed by the belt conveyor 100 by a power drive part 29 and a second loosening apparatus 24 that is arranged before the first loosening apparatus 23 and further disperses the material to be treated, led to a specific position p2 on the inclined guide conduit 25 by a power drive part 38. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a resin fiber supply device adapted to quantitatively and evenly supply resin fibers for reinforcement during kneading of concrete (hereinafter referred to as including mortar).

  In order to increase the strength of the concrete after solidification, resin fibers made of polypropylene or the like having a length of 5 mm to several cm and a single yarn fineness of about 200 to 10,000 dtex (abbreviated as dt) are mixed into the concrete and mortar being kneaded. This is known (see, for example, Patent Document 1).

  In order to effectively increase the strength of the concrete with the resin fibers, it is important to uniformly distribute the resin fibers and supply them to the concrete, but there is no dedicated device for that purpose as far as the applicant knows. . In addition, there exists a thing like patent document 2 as a well-known document which shows a technical level.

JP-A-11-116297 Utility Model Registration No. 2502906

  An object of this invention is to provide the resin fiber supply apparatus which can supply the said resin fiber quantitatively and equally to the concrete under kneading | mixing.

  In order to achieve the above object, according to the present invention, as described in claim 1, a belt conveyor that conveys an object to be processed in which resin fibers for concrete reinforcement having a length of several mm to several cm are gathered forward, and the belt A disassembling processing unit that disperses and sends out the object to be processed conveyed by the conveyor, and a wind force conveying unit that conveys the object to be processed sent from the unraveling processing unit by wind and discharges it to a specific position. And the unwinding processing section is disposed on the front end of the inclined guide rod and the workpiece conveyed by the belt conveyor is scraped by the power drive main portion and pulled forward. A first unwinding device that disperses and disperses, and a front side that is disposed on the front side of the first unwinding device and that reaches a specific position on the inclined guide rod toward the counter-feeding side by the power drive main part. To the above Those that are made from the second loosening device and thereby the tensile Shi distributed in the course of lowering the swash guide Higami.

The invention is preferably embodied as follows.
That is, as described in claim 2, the power drive main part of the first unwinding device is composed of two front and rear rotating bodies, and the front rotating body rotates at a relatively low speed and is conveyed by the belt conveyor. The rear rotating body rotates at a relatively high speed and the workpiece to which the front rotating body is scraped is pulled and dispersed in the feeding direction.

  According to a third aspect of the present invention, the power driving main part of the second unwinding device is composed of two upper and lower rotating bodies, and the lower rotating body rotates at a relatively high speed so that the lower peripheral surface and the rear rear surface thereof. The workpiece that has reached a specific position on the inclined guide rod is scraped up to the counter-feed side, and the upper rotating body rotates at a relatively low speed, and the lower rotating body is scraped up by the upper half of the peripheral surface thereof. Then, the workpiece to be processed is turned and forwardly fed downward, and the lower rotating body pulls and disperses the workpiece to which the upper rotating body is turned and fed by the rear portion of the peripheral surface thereof.

According to the present invention, the following effects can be obtained.
That is, according to the first aspect of the present invention, it is possible to supply quantitatively and continuously to the concrete being kneaded while loosening the objects to be processed in which the resin fibers for concrete reinforcement having a length of several mm to several cm are gathered. As a result, the concrete in which the resin fibers are evenly mixed is efficiently manufactured.

  At this time, the belt conveyor enables efficient supply of the object to be processed by a plurality of people, and the unwinding processing unit includes the first unwinding device and the second unraveling device, so that it is a relatively compact device. It is possible to continuously and efficiently loosen the object to be processed, and the wind-carrying part can easily convey the object to be processed to the specific position and the effect of the object to be processed by the generated wind force. Thus, it can be dispersed and supplied to the concrete being kneaded.

  According to the second aspect of the present invention, the object to be processed conveyed by the belt conveyor is scraped onto the guide start end of the inclined guide rod and pulled forward to disperse continuously and efficiently with a simple structure. be able to.

  According to the third aspect of the present invention, the object to be processed, which has been guided by the inclined guide rod and has reached the specific position, is scraped up to the counter-feed side, conveyed to the front side above and lowered, and is pulled and dispersed. A simple structure can be used continuously and efficiently.

  Next, an embodiment of a resin fiber supply device according to the present invention will be described in detail with reference to FIGS. FIG. 1 is a side view showing substantially the entire resin fiber supply device, FIG. 2 is a plan view showing substantially the entire resin fiber supply device, FIG. 3 is a sectional view of a belt conveyor of the resin fiber supply device, and FIG. FIG. 5 is a front view showing a first loosening device of the resin fiber supply device, and FIG. 6 is a rear view showing the periphery of the conveying fan of the resin fiber supply device. FIG. 7 is a view showing an example of use of the resin fiber supply device.

As shown in FIGS. 1 and 2, the resin fiber supply device of the present invention includes a belt conveyor 100, a loosening processing unit 101, and a wind force conveying unit 102.
First, the belt conveyor 100 will be described. The belt conveyor 100 conveys a workpiece to which the resin fibers w made of polypropylene having a length of 2 mm to 10 cm, preferably 5 mm to 8 cm and a single yarn fineness of about 200 to 10,000 dt are gathered forward. The workpiece guide portion 2 is provided on the upper surface side of the support frame portion 1, and the conveyor belt portion 4 is provided on the upper surface of the horizontal frame 3 facing forward and backward inside the workpiece guide portion 2. Yes.

  Here, the support frame 1 is provided with a vertical front leg 5 at the front left and right locations of the front and rear horizontal plane frame 3 and a vertical rear leg 6 at the left and right rear ends. On the side, the intermediate height portion of the longitudinal front leg portion 5 and the lower portion of the longitudinal rear leg portion 6 are coupled by a front / rear horizontal bar member 7, and 2 in the middle of the length f 1 of the front / rear direction of the horizontal rod member 7. The portion and the corresponding two portions in the lengthwise direction f1 of the horizontal plane frame 3 are coupled by the longitudinal member 8, and a jack bolt 9 is attached to the lower end of each longitudinal front leg portion 5 and each longitudinal direction. A support wheel 10 is rotatably attached to the lower end of the rear leg 6.

  The workpiece guide unit 2 includes front and rear guide plates 11 and 11 arranged in an upright manner on each of the left and right sides of the upper surface of the horizontal plane frame 3, and between the rear end edges of the front and rear guide plates 11 and 11. In addition to providing a rear plate 12 for closing, a front-rear-facing rectangular tube portion 13 whose upper surface is covered is formed on the front portion. As shown in FIG. 3, each front-rear direction guide plate 11 includes a vertical surface portion 11a and an inclined surface portion 11b inclined outward in the left-right direction, and is vertically oriented at a plurality of locations on the outer surface of the vertical surface portion 11a on the front-rear direction f1. The member 14 is fixed, and the lower end portion of each vertical member 14 is fixed to the horizontal plane frame body 3 via bolts. The rectangular tube portion 13 communicates the rear end opening with a portion between the left and right front and rear guide plates 11, 11, and the front end opening is located slightly behind the front end p 1 of the horizontal frame 3.

  The conveyor belt unit 4 is provided with belt wheels 15 and 16 at the front end and the rear end of the horizontal plane frame 3 so as to be rotatable around a left and right axis, respectively, and an endless conveyor belt 17 is wound around the belt wheels 15 and 16. The front belt wheel 15 is rotationally driven by an electric motor 18 fixed to the lower surface side of the horizontal plane frame 3 so that the upper portion of the conveyor belt 17 is moved forward f1. At this time, the length f1 of the front and rear direction of the conveyor belt portion 4 is about 4 m, and the moving speed of the conveyor belt 17 is about 4 m and moves in about 2 minutes and 40 seconds.

  Next, the unwinding processing unit 101 will be described. As shown in FIGS. 2 and 4, a main body casing 22 having a front-rear-facing front-down sealed passage 21 having a rear opening 19 and a front opening 20 is provided. The first unwinding device 23 is provided on the rear side in the sealed passage 21, and the second unwinding device 24 is provided on the front side.

  Here, the main body casing 22 is provided with an inclined guide rod 25 that is forwardly and downwardly inclined, and the front and rear side walls 26 and 26 are erected from the left and right side edges of the inclined guide rod 25, The upper part 26 is covered with an upper surface wall 27, and the front part between the left and right front and rear side walls 26, 26 is covered with a front wall 28.

  The first unwinding device 23 is disposed close to the feeding start end of the inclined guide rod 25, and the workpiece conveyed by the belt conveyor 100 is scraped by the power driving main portion 29 and pulled forward to be dispersed. It has been. The power drive main part 29 is composed of two rotary bodies 29A and 29B arranged in the front-rear direction, and each of the two rotary bodies 29A and 29B is rotationally driven by a power drive mechanism 30A shown in FIG. Each of the rotating bodies 29A and 29B includes left and right rotation center shafts 32a and 32b rotatably supported by bearings 31 at the left and right ends. A large number of the rotation bodies 29A and 29B extend radially from the peripheral surfaces of the rotation center shafts 32a and 32b. The finger rods 33a and 33b made of a long and narrow bar are extended so that the finger rods 33a and 33b are arranged so as to be evenly arranged on a virtual circumferential surface centering on the rotation center shafts 32a and 32b. It has been. The power drive mechanism 30A includes an electric motor 34 and two bevel gear transmission portions 35 and 36, and the rotation of the electric motor 34 is performed via a transmission band 37 such as a chain or a belt, input shafts 35a of the bevel gear transmission portions 35 and 36, 35b, and subsequently decelerated by a bevel gear (not shown) in each of the bevel gear transmission portions 35 and 36, and transmitted to the corresponding rotation center shafts 32a and 32b. At this time, the front and rear rotating bodies 29A and 29B have the same diameter and rotate in the direction in which the lower part is moved forward, and the rotation locus of the finger 33a of the front rotating body 29A and the rear rotating body The rotation trajectory of the 29B finger 33b is arranged so as to overlap in a side view, and the speed ratio of the front rotary body 29A and the rear rotary body 29B is, for example, about 1: 6.

  The second unwinding device 24 is disposed in the vicinity of the upper side of the 25 inclined guide rods on the front side of the first unraveling device 23, and the power drive main part 38 is configured to remove an object to be processed by the first unraveling device 23 that is insufficiently unraveled. The power drive main part 38 is composed of two rotary bodies 38A and 38B similar to the previous rotary bodies 29A and 29B arranged in the vertical direction. Each of these two rotators 38A, 38B is driven to rotate by a power drive mechanism 30B similar to the previous power drive mechanism 30A, and the direction of rotation is opposite to that of the previous rotators 29A, 29B. In FIG. 4, it is rotated clockwise. At this time, the speed ratio between the upper rotating body 38A and the lower rotating body 38B is, for example, about 1: 6.

  Next, the wind conveyance unit 102 will be described. As shown in FIGS. 4 and 6, the conveyance fan 40 driven by the electric motor 39 is provided, and the air suction port 41 of the conveyance fan 40 is loosened. In addition to communicating with the front opening 20 on the outlet side of the main casing 22, the conveying pipe 43 is extended upright from the air discharge port 42 of the conveying fan 40. At this time, the impeller 40a of the transport fan 40 is located on one side of the disk body a1 rotated about the specific rotation center line 44 and is positioned on the rotation radius direction and protrudes toward the air suction port 41 in the direction of the specific rotation center line 44. In addition, a large number of wind-generating plates a2 are formed.

  As shown in FIGS. 4 and 7, the transport pipe 43 is connected to the discharge port 42 of the transport fan 40 and has a rising portion 45 formed of a hard material such as a thin steel plate having a height of about 3.5 m. A bendable tube 46 such as a rubber tube extending from the outlet is provided, and a discharge port member 47 fixed to the tip thereof. Further, a lifting projecting member 48 is provided so as to project forward from the upper portion of the rising portion 45, and the lifting projecting member 48 is located at a height position of the discharge port member 47 via a hanging string 49 suspended from the tip. It can be adjusted.

  The unraveling processing unit 101 and the wind force conveying unit 102 are mounted on the same base 50, and the base 50 is provided with support wheels 51 and 52 at the front and rear, and is positioned from the front. The holding member 53 extends rearward and upward, and through the position holding member 53, the front end portion of the rectangular tube portion 13 of the belt conveyor 100, and the rear side opening 19 that is the inlet side of the unwinding processing portion 101 Are maintained in a state of being in close communication with each other. In FIG. 2, reference numeral 103 denotes a control panel fixed on the base 50.

Next, usage examples of the above-described resin fiber supply device will be described.
A bag containing resin fibers w of several kilograms in a compact form is carried near the belt conveyor 100, and the mixer wheel 104 is positioned in front of the wind conveyor 102, and a discharge port member 47 is provided in the hopper 104b of the agitator 104a. Plug in. Next, the mixer wheel 104 rotates the agitator 104a so as to knead the concrete therein, and also activates each part of the resin fiber supply device.

  Under this state, the worker or workers lift the bag and drop the resin fiber w from the inside to place it on the conveyor belt 17 as shown in FIG. At this time, the belt conveyor 100 that is long in the front-rear direction f1 contributes to enabling a plurality of people to perform the process of simultaneously feeding the resin fibers w onto the transport belt 17 without any trouble. Since the resin fibers w placed on the conveyor belt 17 are piled up at the dropping position, the resin fibers w are approximately flattened, and the thickness of the resin fibers w on the conveyor belt 17 at this time is about maximum at most. It is about 220 mm.

  When the transport belt 17 transports the resin fiber w to the transport end, the finger 33a of the rotating body 29A on the front side of the first unwinding device 23 moves the resin fiber w forward at substantially the same speed as the transport speed of the transport belt. It is scraped and moved onto the guide start end of the inclined guide rod 25. Next, the finger 33b of the rear rotating body 29B moves the resin fiber w thus scraped forward at a feed rate of about 6 times. By pulling and dispersing, the lump-shaped resin fibers w are temporarily loosened.

  This resin fiber w is further moved forward and downward by the feeding action and gravity action of the first unwinding device 23, and when reaching the specific position p2, the massive resin fibers w remaining therein are second unraveled. The finger rods 33b positioned at the lower part and the rear part of the lower rotating body 38B of the device 24 are lifted up in the reverse feed direction, and then the rear and upper finger bars 33a of the upper rotating body 38A are further moved upward. Conveying, then turning and conveying forward in a circular arc shape and conveying downward, then the front finger 33b of the lower rotating body 38B is approximately six times as large as the upper rotating body 38A. After pulling downward at a feed rate to disperse it, it is dropped onto the inclined guide rod 25 in front of the specific point p2. As a result, on the front side of the lower rotating body 38B, the resin fiber w is secondarily loosened by the upper and lower rotating bodies 38A and 38B, and the inclination guide is provided by the gravitational action without being loosened by the rotating bodies 38A and 38B. The resin fiber w that has passed between the flange 25 and the lower rotating body 38B joins, and thereafter, the resin fiber w is sucked inward of the transport fan 40 by the gravity action and the suction action of the transport fan 40.

  The resin fiber w that has reached the inside of the conveying fan 40 is shockedly contacted with the impeller 40a to further promote dispersion, and the wind generated by the impeller 40a (for example, a pressure of about 1.4 kPa, an air volume of about 26 per minute). Is transported through the transport pipe 43 and is quantitatively blown into the agitator 104a of the mixer truck 104. Thereby, the resin fiber w is mixed in a state of being dispersed in the concrete in the agitator 104a. When the resin fiber w is supplied in an amount of 0.1% to 2.0%, preferably 0.3% to 1.0% by weight with respect to the concrete in the agitator 104a, the supply is stopped by the operator. Is done.

It is a side view which shows the substantially whole resin fiber supply apparatus which concerns on this invention. It is a top view which shows the substantially whole of the said resin fiber supply apparatus. It is sectional drawing of the belt conveyor of the said resin fiber supply apparatus. It is a side view which shows the cross section etc. of the loosening process part of the said resin fiber supply apparatus. It is a front view which shows the 1st unwinding apparatus of the said resin fiber supply apparatus. It is a rear view which shows the conveyance fan periphery of the said resin fiber supply apparatus. It is a figure which shows the usage example of the said resin fiber supply apparatus.

Explanation of symbols

w Resin Fiber 100 Belt Conveyor 101 Unwinding Processing Unit 102 Wind Power Conveying Unit 23 First Unraveling Device 24 Second Unraveling Device 25 Inclination Guide Rod 29 Power Drive Essential Part 29A Rotating Body 29B Rotating Body 38 Power Driving Essential Part 38A Rotating Body 38B Rotating Body

Claims (3)

  A belt conveyor that conveys the object to be treated in which resin fibers for concrete reinforcement of several mm to several cm in length are gathered forward, a loosening treatment unit that disperses and delivers the object to be treated conveyed by the belt conveyor, and the loosening A wind-carrying unit that conveys the object to be processed sent from the processing unit with wind force and discharges it to a specific position, wherein the unwinding processing unit has a front-falling inclination guide rod, and the inclination A first unwinding device that is disposed on the feed start end of the guide rod and that is driven by the main part of the power conveyor and pulled forward to disperse the object to be processed by the belt conveyor, and disposed on the front side of the first unwinding device. The second unraveling is performed in such a manner that the workpiece that has reached a specific position on the inclined guide rod is scraped up to the counter-feed side by the power drive main part and transported to the upper front side and pulled and dispersed on the inclined guide rod. Dress Resin fiber supply device, characterized in that it consists of a.   The power drive main part of the first unwinding device is composed of two front and rear rotating bodies, the front rotating body rotates at a relatively low speed, and the workpiece conveyed by the belt conveyor is scraped onto the inclined guide rod, 2. The resin fiber according to claim 1, wherein the rotating body is rotated at a relatively high speed and the object to be processed, which is scraped by the front rotating body, is pulled and dispersed in the feeding direction. Feeding device.   The power drive main part of the second unwinding device consists of two upper and lower rotating bodies, and the lower rotating body rotates at a relatively high speed and reaches a specific position on the inclined guide rod by the lower part of the peripheral surface and the rear part of the peripheral surface. The workpiece is scraped up to the reverse feed side, and the upper rotating body rotates at a relatively low speed, and the upper half of the peripheral surface turns the workpiece to be scraped up by the lower rotating body downwards to the front side. 3. The structure according to claim 1, wherein the lower rotating body is configured to pull and disperse the workpiece to which the other rotating body is turned and fed by the rear portion of the peripheral surface thereof. The resin fiber supply apparatus of description.

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