WO2014148288A1 - ガラスチョップドストランドの製造装置、及び製造方法 - Google Patents

ガラスチョップドストランドの製造装置、及び製造方法 Download PDF

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Publication number
WO2014148288A1
WO2014148288A1 PCT/JP2014/056126 JP2014056126W WO2014148288A1 WO 2014148288 A1 WO2014148288 A1 WO 2014148288A1 JP 2014056126 W JP2014056126 W JP 2014056126W WO 2014148288 A1 WO2014148288 A1 WO 2014148288A1
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WO
WIPO (PCT)
Prior art keywords
rubber roll
roll
slip ratio
rubber
glass chopped
Prior art date
Application number
PCT/JP2014/056126
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English (en)
French (fr)
Japanese (ja)
Inventor
泰樹 山下
松原　正典
敏之 青木
Original Assignee
日本電気硝子株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 日本電気硝子株式会社 filed Critical 日本電気硝子株式会社
Priority to CN201480012431.8A priority Critical patent/CN105121718B/zh
Publication of WO2014148288A1 publication Critical patent/WO2014148288A1/ja

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G1/00—Severing continuous filaments or long fibres, e.g. stapling
    • D01G1/02—Severing continuous filaments or long fibres, e.g. stapling to form staple fibres not delivered in strand form
    • D01G1/04—Severing continuous filaments or long fibres, e.g. stapling to form staple fibres not delivered in strand form by cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/25—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member
    • B26D1/34—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut
    • B26D1/40—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut and coacting with a rotary member
    • B26D1/405—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut and coacting with a rotary member for thin material, e.g. for sheets, strips or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D7/2628—Means for adjusting the position of the cutting member
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/10—Non-chemical treatment
    • C03B37/16—Cutting or severing
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06H—MARKING, INSPECTING, SEAMING OR SEVERING TEXTILE MATERIALS
    • D06H7/00—Apparatus or processes for cutting, or otherwise severing, specially adapted for the cutting, or otherwise severing, of textile materials
    • D06H7/02—Apparatus or processes for cutting, or otherwise severing, specially adapted for the cutting, or otherwise severing, of textile materials transversely
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting

Definitions

  • the present invention relates to a manufacturing apparatus and a manufacturing method of a glass chopped strand provided with a rubber roll and a cutter roll.
  • Glass chopped strands are produced by cutting glass fiber strands (hereinafter simply referred to as glass strands) formed from hundreds to thousands of glass monofilaments into a certain length.
  • the step of cutting the glass strand is performed by rotating the glass strand supplied from the upstream while the cutter roll is brought into contact with the surface of the rubber roll while the glass strand is placed on the surface of the rubber roll.
  • cutting blades are attached radially at equal intervals around the rotation axis.
  • the glass chopped strand may enter between the cutting blades, causing clogging and not being discharged.
  • the interval between the cutting blades becomes narrow, and the glass chopped strand easily enters between the cutting blades and easily clogs. If it is attempted to cut the glass strand with a clogged cutting blade, there is a possibility that a defective cutting of the glass strand may occur.
  • the peripheral speed of the cutter roll is set to be faster than the peripheral speed of the rubber roll, and the glass chopped strand is clogged between the cutting blades of the cutter roll. It is preventing.
  • the present invention has been made in view of the above problems, and even when the peripheral speed of the cutter roll is set faster than the peripheral speed of the rubber roll, an apparatus for producing a glass chopped strand in which a deep groove is hardly formed on the surface of the rubber roll, and An object is to provide a manufacturing method.
  • the characteristic configuration of the glass chopped strand manufacturing apparatus for solving the above problems is as follows.
  • An apparatus for producing glass chopped strands comprising:
  • v1 Peripheral speed of the outer peripheral surface of the cutter roll
  • v2 The peripheral speed of the outer peripheral surface of the rubber roll is always rotated so as to fluctuate with a positive value.
  • the glass chopped strand manufacturing apparatus of this configuration is set so that the slip ratio S always fluctuates with a positive value. Therefore, the cutter roll cutting blade is rotated while rotating the cutter roll at a faster peripheral speed than the rubber roll. It can contact
  • the slip ratio S is preferably set so as to vary periodically.
  • the cutting blade of the cutter roll is made of the rubber roll while rotating the cutter roll at a faster peripheral speed than the rubber roll. It can contact
  • the slip ratio S is preferably set so as to vary randomly.
  • the cutting blade of the cutter roll is placed on the surface of the rubber roll while rotating the cutter roll at a faster peripheral speed than the rubber roll. It can be made to contact
  • the slip ratio S is preferably set so as to vary within a certain range with a random time period.
  • the glass chopped strand manufacturing apparatus of this configuration is set so that the slip ratio S fluctuates within a certain range in a random time period, the load applied to the cutting blade is reduced, and the cutting blade of the cutter roll Can be brought into contact with the surface of the rubber roll in a state shifted at random in the longitudinal direction of rotation. As a result, it is possible to reliably prevent deep grooves from being formed on the surface of the rubber roll.
  • the slip ratio S is preferably set so as to vary in a random range at a constant time period.
  • the glass chopped strand manufacturing apparatus of this configuration is set so that the slip ratio S fluctuates in a random range at a constant time period, the load applied to the cutting blade is reduced, and the cutting blade of the cutter roll Can be brought into contact with the surface of the rubber roll in a state shifted at random in the longitudinal direction of rotation. As a result, it is possible to reliably prevent deep grooves from being formed on the surface of the rubber roll.
  • the slip ratio S is preferably set so as to vary according to a certain rule.
  • the glass chopped strand manufacturing apparatus of this configuration is set so that the slip ratio S fluctuates according to a certain rule, a deep groove is formed on the surface of the rubber roll while reliably reducing the load on the cutting blade. Can be effectively suppressed.
  • the slip ratio S is preferably set so as to vary within a range of ⁇ 1% from the reference slip ratio S ′.
  • the glass chopped strand manufacturing apparatus of this configuration is set so that the slip rate S varies within a range of ⁇ 1% from the reference slip rate S ′, it effectively reduces the load on the cutting blade. However, it is possible to reliably suppress the formation of deep grooves on the surface of the rubber roll.
  • the slip ratio S is preferably changed by sequence control.
  • the glass chopped strand manufacturing apparatus of this configuration can automatically execute the fluctuation operation of the slip ratio S because the slip ratio S varies by sequence control, and as a result, the glass chopped strand manufacturing efficiency is improved. be able to.
  • the glass chopped strand manufacturing method of this configuration is set so that the slip rate S always fluctuates with a positive value in the cutting step, so the cutter roll is rotated while rotating the cutter roll at a faster peripheral speed than the rubber roll.
  • the cutting blade can be brought into contact with the surface of the rubber roll while being shifted. As a result, it is possible to prevent the cutting blade of the cutter roll from damaging the same portion of the surface of the rubber roll, and it is possible to prevent deep grooves from being formed on the surface of the rubber roll.
  • FIG. 1 is a schematic front view of a glass chopped strand manufacturing apparatus.
  • FIG. 2 is a schematic plan view of a glass chopped strand manufacturing apparatus.
  • FIG. 3 is a time chart showing the time change of the slip ratio of the cutter roll with respect to the rubber roll.
  • FIG. 4 is a time chart showing the change over time of the slip ratio of the cutter roll with respect to the rubber roll.
  • FIG. 5 is a photograph of (a) the surface of a rubber roll used in a glass chopped strand manufacturing apparatus according to the present invention, and (b) the surface of a rubber roll used in a conventional glass chopped strand manufacturing apparatus.
  • FIG. 6 is a schematic plan view of a glass chopped strand manufacturing apparatus provided with a polishing means.
  • FIG. 1 is a schematic front view of a glass chopped strand manufacturing apparatus 100.
  • FIG. 2 is a schematic plan view of the glass chopped strand manufacturing apparatus 100.
  • the glass chopped strand manufacturing apparatus 100 is an apparatus for manufacturing the glass chopped strand G by cutting the glass strand F into a predetermined length as shown in FIGS. 1 and 2, and the cutting blade 10a in the circumferential direction.
  • the cutter roll 10 is mounted at regular intervals and radially with respect to the rotation axis, and the rubber roll 11 is formed by covering the roller core 11d with an elastic body 11c.
  • a white arrow shown in FIG. 1 indicates the rotation direction of the cutter roll 10 and the rubber roll 11, and a black arrow shown in FIGS. 1 and 2 indicates the moving direction of the cutter roll 10.
  • the rubber roll 11 is pivotally supported so as to be rotatable around the shaft center 11 b and is driven to rotate at a constant peripheral speed by the first motor 12.
  • the size of the rubber roll 11 can be changed according to the type of the glass chopped strand G to be manufactured, the manufacturing scale, etc.
  • the diameter of the rubber roll 11 (including the elastic body 11c) is 250 to 400 mm
  • the width direction of the rubber roll 11 The length is set to 250 to 450 mm
  • the thickness of the elastic body 11c is set to 5 to 100 mm.
  • the material used for the elastic body 11c can be appropriately selected according to the properties of the glass strand F to be cut, but a rubber material having appropriate elasticity and resistance to deterioration is preferable.
  • urethane rubber fluorine
  • examples thereof include rubber, silicone rubber, chloroprene rubber, acrylic rubber, isoprene rubber, nitrile rubber, styrene rubber, hyperon rubber, and natural rubber.
  • the rubber roll 11 configured as described above conveys 1 to 100 glass strands F supplied from the upstream to the downstream while being placed on the surface 11a. That is, the conveyance process in the manufacturing method of the glass chopped strand of this invention is performed.
  • the cutter roll 10 is attached so that the cutting blades 10a protrude radially from the axial center 10b at equal intervals (for example, 3 mm) in the circumferential direction.
  • the shaft center 10 b of the cutter roll 10 is disposed so as to be substantially parallel to the shaft center 11 b of the rubber roll 11, and is disposed so that the cutting blade 10 a of the cutter roll 10 can come into contact with the surface 11 a of the rubber roll 11.
  • the cutter roll 10 is rotatably supported around an axis 10b, and is driven to rotate by the second motor 13 in accordance with the peripheral speed of the rubber roll 11.
  • the cutter roll 10 is in contact with the surface 11a of the rubber roll 11 while rotating.
  • the strand F is cut.
  • the cutting process in the manufacturing method of the glass chopped strand of this invention is performed.
  • the peripheral speed of the cutter roll 10 is faster than the peripheral speed of the rubber roll 11, and can be adjusted to vary according to a certain rule or randomly.
  • the glass chopped strands G that are cut when the glass strands F are cut by entering the cutter blades 10 and the rubber rolls 11 are appropriately clogged.
  • the cutting blade 10a is prevented from biting into the same portion of the surface 11a of the rubber roll 11, and the progress of deterioration of the rubber roll 11 is suppressed.
  • the size of the cutter roll 10 can be changed according to the type and production scale of the glass chopped strand G to be manufactured.
  • the diameter of the cutter roll 10 (including the cutting blade 10a) is set to 50 to 100 mm
  • the length in the width direction of the cutter roll 10 is set equal to or slightly longer than the length in the width direction of the rubber roll 11. Thereby, the cutting edge of the cutting blade 10a can be reliably contacted over the entire width direction of the rubber roll 11.
  • the cutter roll 10 presses the cutting blade 10a against the surface 11a of the rubber roll 11 with a predetermined pressure in order to give a shearing force to the glass strand F.
  • the cutting blade 10a of the cutter roll 10 bites into the surface 11a of the rubber roll 11, and the surface 11a of the rubber roll 11 is shaved.
  • the diameter of the rubber roll 11 gradually decreases, and the pressing force of the cutter roll 10 on the surface 11a of the rubber roll 11 is weakened. Therefore, the cutter roll 10 is connected to a slide means 20 for approaching the rubber roll 11 in accordance with the deterioration of the rubber roll 11. As shown in FIG.
  • the slide means 20 includes a first base 21 on which a second motor 13 that rotates the cutter roll 10 is placed, and a first drive means 22 that moves the first base 21.
  • the first base 21 is slidably disposed on a first rail 23 that is disposed in a direction orthogonal to the axis 10b of the cutter roll 10 (the direction of the arrow a).
  • the shaft center 10b of the cutter roll 10 and the shaft center 11b of the rubber roll 11 are arranged so as to be substantially parallel, and when the first drive means 22 is driven, the first base 21 moves over the first rail 23 with an arrow. Slide and move in the direction of a.
  • a second motor 13 is placed on the first base 21, and the second motor 13 is connected to the cutter roll 10.
  • the cutter roll 10 moves to the direction of arrow a, ie, the direction which presses the surface 11a of the rubber roll 11.
  • FIG. thereby, the cutter roll 10 can press the cutting blade 10a against the surface 11a of the rubber roll 11 while maintaining the parallel state of the axis 10b of the cutter roll 10 and the axis 11b of the rubber roll 11.
  • a stepping motor capable of causing the cutter roll 10 to approach the rubber roll 11 at regular intervals can be used as the first driving means 22.
  • control means for controlling the operation of the first motor 12, the second motor 13, and the slide means 20.
  • the first motor 12, the second motor 13, and the slide means 20 are sequence-controlled in a predetermined pattern so that the slip rate S of the cutter roll 10 can be changed with respect to the rubber roll 11, which will be described later. Can be executed automatically.
  • a general-purpose personal computer or the like can be used as the control means.
  • ⁇ Slip rate of cutter roll> On the outer periphery of the cutter roll 10, cutting blades 10 a are provided at equal intervals (for example, 3 mm), and the tips of the cutting blades 10 a come into contact with the surface 11 a of the rubber roll 11.
  • the peripheral speed of the outer peripheral surface of the cutter roll 10 is set faster (for example, 273 m / min) than the peripheral speed (for example, 260 m / min) of the outer peripheral surface of the rubber roll 11, the rubber roll 11 and the cutter roll 10
  • the cutting blade 10a is warped at the contact portion.
  • the glass chopped strand G is pushed out from between the cutting blades 10 a of the cutter roll 10 by the rebounding force of the cutting blade 10 a generated when the warping of the cutting blade 10 a is eliminated, and is efficiently discharged from the cutter roll 10.
  • the slip ratio S of the cutter roll 10 with respect to the rubber roll 11 is set to be constant, the frequency at which the cutting blade 10a bites into the same portion of the surface 11a of the rubber roll 11 increases. Thereby, the damage
  • the present invention is configured such that the slip ratio S (%) of the cutter roll 10 relative to the rubber roll 11 always varies with a positive value. This variation is performed periodically or randomly.
  • the cutting blade 10a of the cutter roll 10 is brought into contact with the surface 11a of the rubber roll 11 while being shifted in the front-rear direction of rotation, so that the surface 11a of the rubber roll 11 is substantially uniform. So that it can be sharpened.
  • the slip ratio S (%) of the cutter roll 10 relative to the rubber roll 11 can be expressed by the following formula (1).
  • S (%) (v1 / v2 ⁇ 1) ⁇ 100 (1)
  • v1 Peripheral speed of the outer peripheral surface of the cutter roll 10
  • v2 Peripheral speed of the outer peripheral surface of the rubber roll 11
  • the range in which the slip ratio S of the cutter roll 10 with respect to the rubber roll 11 can be taken is 1% to 10%, preferably 2% to 8%, and more preferably 4% to 6%. If the slip rate S of the cutter roll 10 is set to less than 1%, the difference between the peripheral speeds of the cutter roll 10 and the rubber roll 11 is not sufficient, so that the cutting blade 10a pushes out the glass chopped strand G (bounce force) becomes weak. . As a result, the glass chopped strand G may enter between the cutting blades 10a of the cutter roll 10 to cause clogging of the cutter roll 10 and cause a cutting failure of the glass strand F.
  • slip rate S of the cutter roll 10 When the slip rate S of the cutter roll 10 is set to be larger than 10%, when the tip of the cutting blade 10a bites into the surface 11a of the rubber roll 11, a load due to warping of the cutting blade 10a becomes excessive, and the cutting blade 10a may be damaged. There is. A method for changing the slip ratio S of the cutter roll 10 relative to the rubber roll 11 will be described below.
  • a variation method combining these variation methods The up / down fluctuation amount and the fluctuation time period of the slip ratio S may be changed or changed randomly, or may be changed or changed according to a certain rule.
  • up and down fluctuation means that the slip ratio S fluctuates to a value smaller than the reference slip ratio when it is fluctuated to a value smaller than the reference slip ratio after being varied to a value larger than the reference slip ratio. This includes the case where the value is changed to a value larger than the reference slip rate after the adjustment.
  • the “time period” represents the time required for the slip rate S to be changed up and down from the reference slip rate to return to the reference slip rate.
  • the initial slip rate which is the slip rate S at the start of manufacturing the glass chopped strand G
  • the reference slip rate S ′ is set as the reference slip rate S ′
  • the slip rate S is determined from the reference slip rate S ′ by a predetermined amount of vertical fluctuation. And fluctuate in a certain time period, and the amount of fluctuation in the vertical direction is varied randomly for each period.
  • the reference slip ratio S ′ is set to 4% to 6%
  • the vertical fluctuation amount is set to ⁇ 0.4% to ⁇ 2%.
  • the reference slip ratio S ′ is set to 4% to 6%, and the vertical fluctuation amount is set to ⁇ 1%. More preferably, the reference slip ratio S ′ is set to 5%, and the vertical fluctuation amount is set to ⁇ 1%.
  • the initial slip rate which is the slip rate S at the start of production of the glass chopped strand G
  • the slip rate S is constant from the reference slip rate S ′.
  • the time period of the fluctuation is changed at random. To change the time period of fluctuation at random, the time until the slip ratio S fluctuates from the value of the reference slip ratio S ′ by a predetermined amount of vertical fluctuation and returns to the same reference slip ratio S ′ again is changed. That is.
  • the change width of the time period is preferably set to 10 to 30 seconds.
  • the change width of the time period is set to be shorter than 10 seconds, the slip ratio S is too finely changed, so that the load due to the warp of the cutting blade 10a becomes excessive and the cutting blade 10a may be damaged. If the change width of the time period is set longer than 30 seconds, the variation of the slip ratio S is not sufficient, so that the cutting blade 10a easily bites into the same portion of the surface 11a of the rubber roll 11. As a result, a saw-like deep groove is formed on the surface 11a of the rubber roll 11 due to the rebounding force of the cutting blade 10a, and the life of the rubber roll 11 may be shortened.
  • 3 and 4 are time charts showing the change over time of the slip ratio S of the cutter roll 10 with respect to the rubber roll 11.
  • 3A is a time chart of the slip ratio S according to the first embodiment
  • FIG. 3B is a time chart of the slip ratio S according to the second embodiment
  • FIG. 3C is according to the third embodiment
  • FIG. 4D is a time chart of the slip ratio S according to the fourth embodiment
  • FIG. 4E is a time chart of the slip ratio S according to the fifth embodiment.
  • the initial slip ratio at the start of manufacturing the glass chopped strand G is set as the reference slip ratio S ′, and the slip ratio S is changed by a predetermined amount of vertical fluctuation from the reference slip ratio S ′.
  • the number shown to the right of the reference slip ratio S ′ on the vertical axis represents the actual value of the reference slip ratio, and the vertical axis represents the amount of variation from the reference slip ratio S ′.
  • the slip ratio S by making the peripheral speed of the outer peripheral surface of the rubber roll 11 constant and changing the peripheral speed of the outer peripheral surface of the cutter roll 10. Since the peripheral speed of the outer peripheral surface of the rubber roll 11 is constant, the supply rate of the glass strand F supplied to the glass chopped strand manufacturing apparatus 100 can be made constant. As a result, the production amount of the glass chopped strand G per unit time Can be made constant.
  • the slip ratio S is randomly varied using both the first variation method and the second variation method.
  • Each section delimited by a dotted line in the time chart represents one cycle of the fluctuation of the slip ratio S.
  • the reference slip ratio S ′ is set to 6.0%, and the slip ratio S is randomly changed with a vertical fluctuation amount of ⁇ 0.6 to ⁇ 1.0% from the reference slip ratio S ′.
  • the time period of vertical fluctuations is randomly changed between 10 seconds and 14 seconds.
  • the cutting blade 10 a of the cutter roll 10 is rotated in the front-rear direction with respect to the surface 11 a of the rubber roll 11. It can be made to contact in the state shifted at random. As a result, it is possible to reliably prevent deep grooves from being formed on the surface 11a of the rubber roll 11.
  • the vertical fluctuation amount of the slip ratio S is set to be constant, and the time period of the fluctuation of the slip ratio S is randomly changed using the second fluctuation method.
  • Each section delimited by a dotted line in the time chart represents one cycle of the fluctuation of the slip ratio S.
  • the reference slip rate S ′ is set to 5.0%, the slip rate S is changed by a vertical fluctuation amount of ⁇ 1.0% from the reference slip rate S ′, and the time period of change of the slip rate S is set to 10 It is changed randomly between 2 and 22 seconds.
  • the cutting blade 10a of the cutter roll 10 is in contact with the surface 11a of the rubber roll 11 in a state of being randomly shifted in the front-rear direction. Can be made. As a result, it is possible to reliably prevent deep grooves from being formed on the surface 11a of the rubber roll 11.
  • the time period of the variation of the slip ratio S is set to be constant, and the vertical variation amount of the slip ratio S is randomly varied using the first variation method.
  • Each section delimited by a dotted line in the time chart represents one cycle of the variation of the slip ratio S.
  • the reference slip ratio S ′ is set to 4.0%, and the slip ratio S is randomly varied with a vertical fluctuation amount of ⁇ 0.4 to ⁇ 2.0% from the reference slip ratio S ′.
  • the time period of the fluctuation is set to 10 seconds.
  • the cutting blade 10a of the cutter roll 10 is brought into contact with the surface 11a of the rubber roll 11 in a state of being randomly shifted in the front-rear direction of rotation. be able to. As a result, it is possible to reliably prevent deep grooves from being formed on the surface 11a of the rubber roll 11.
  • the slip ratio S is varied according to a certain rule using both the first variation method and the second variation method.
  • Each section delimited by a dotted line in the time chart represents one cycle of the variation of the slip ratio S.
  • the reference slip rate S ′ is set to 5.0%
  • the slip rate S is changed by an amount of vertical fluctuation of ⁇ 0.6 to ⁇ 1.0% from the reference slip rate S ′
  • the slip rate S is changed. Is changed between 10 seconds and 14 seconds.
  • three cycles of the variation of the slip ratio S are set as one cycle, and this cycle is repeated so that the slip ratio S varies according to a certain rule.
  • both the vertical fluctuation amount of the slip rate S and the time period of the fluctuation are changed or changed according to a certain rule, so that the cutting blade 10a of the cutter roll 10 is rotated before and after the surface 11a of the rubber roll 11 is rotated. It is possible to make contact with the direction shifted in a predetermined pattern. As a result, it is possible to reliably prevent a deep groove from being formed on the surface 11a of the rubber roll 11 while reliably reducing the load applied to the cutting blade 10a due to the change in the slip ratio S.
  • both the vertical fluctuation amount of the slip ratio S and the time period of the fluctuation are changed or changed. However, as in the second embodiment and the third embodiment described above, either one is made constant. The other may be set to vary or change.
  • the slip ratio S is varied by setting the vertical variation amount of the slip ratio S and the time period of the variation constant.
  • Each section delimited by a dotted line in the time chart represents one cycle of the variation of the slip ratio S.
  • the reference slip rate S ′ is set to 5.0%
  • the slip rate S is changed by ⁇ 1.5% up / down fluctuation amount from the reference slip rate S ′
  • the time period of change of the slip rate S is 20 Set to seconds.
  • the up-and-down fluctuation amount of the slip rate S and the time period of the fluctuation are set to be constant, the load applied to the cutting blade 10a of the cutter roll 10 can be reliably reduced.
  • An apparatus for manufacturing glass chopped strands (Example) in which the slip rate of the cutter roll relative to the rubber roll according to the present invention was varied, and an apparatus for manufacturing glass chopped strands (Comparative Example) in which the slip rate of the cutter roll relative to the rubber roll was constant.
  • the used rubber roll has a diameter of 370 mm, a length in the width direction of 350 mm, and an elastic body thickness of 100 mm.
  • Urethane rubber was used for the elastic body of the rubber roll.
  • the peripheral speed of the rubber roll was set to 260 m / min. In the embodiment, as shown in FIG.
  • the reference slip ratio is set to 5.0%
  • the slip ratio is changed by a vertical fluctuation amount of ⁇ 1.0% from the reference slip ratio
  • the slip The time period of fluctuation of the rate S was randomly changed between 10 seconds and 30 seconds.
  • the slip ratio was set to 5%.
  • the apparatus for producing glass chopped strands of Examples and Comparative Examples was operated for 30 hours, and the deterioration state of the surface of the rubber roll was visually evaluated.
  • FIG. 5 shows (a) the surface of a rubber roll used in a glass chopped strand production apparatus according to the present invention (Example), and (b) the surface of a rubber roll used in a conventional glass chopped strand production apparatus (Comparative Example). It is a photograph of. As shown in FIG. 5 (a), the surface of the rubber roll of the example is scraped substantially evenly in the front-rear direction and maintains a smooth state. On the other hand, as shown in FIG. 5 (b), the surface of the rubber roll of the comparative example has a saw-like deep groove, and it can be confirmed that the deterioration is progressing. In addition, clogging of the glass chopped strand into the cutting blade of the cutter roll did not occur in any of the examples and the comparative examples.
  • FIG. 6 is a schematic plan view of a glass chopped strand manufacturing apparatus 100 provided with a polishing means 14, which is another embodiment of the glass chopped strand manufacturing apparatus according to the present invention.
  • the black arrows shown in FIG. 6 indicate the moving directions of the cutter roll 10 and the polishing means 14.
  • the slip rate S of the cutter roll 10 with respect to the rubber roll 11 is changed, and the cutting blade 10a of the cutter roll 10 is brought into contact with the surface 11a of the rubber roll 11 in a state shifted in the front-rear direction.
  • polishing is performed to polish the surface 11a of the rubber roll 11 while reciprocating in the width direction of the rubber roll 11 in order to smooth the surface 11a of the rubber roll 11. It is also possible to provide further means 14.
  • the polishing unit 14 includes a polishing unit 15 that polishes the surface 11 a of the rubber roll 11, a proximity moving unit 30 that moves the polishing unit 15 so as to be close to the axis 11 b of the rubber roll 11, A width direction moving means 40 for reciprocating the polishing portion 15 in parallel with the width direction of the rubber roll 11 is provided.
  • the polishing unit 15 abuts on the surface 11a of the rubber roll 11 by the proximity moving means 30, and polishes the surface 11a of the rubber roll 11 by reciprocating in the width direction of the rubber roll 11 by the width direction moving means 40.
  • the width direction moving means 40 is disposed in a direction parallel to the second base 41 on which the polishing portion 15 for polishing the surface 11 a of the rubber roll 11 is placed and the width direction of the rubber roll 11.
  • the second rail 42, the rail base 43 that fixes the second rail 42, and the second driving means 44 that moves the second base 41 are provided.
  • the polishing portion 15 is fixed to the second base 41 so as to face the surface 11 a of the rubber roll 11.
  • the second base 41 slides on the second rail 42 (in the direction of arrow c).
  • the polishing unit 15 disposed on the second base 41 reciprocates in the direction of the arrow c, and uniformly polishes the surface 11a of the rubber roll 11.
  • the proximity moving means 30 includes third driving means 31 for moving the rail base 43, as shown in FIG.
  • the rail base 43 slides on the third rail 32 arranged in a direction orthogonal to the axis 11 b of the rubber roll 11 (direction of arrow b). That is, the polishing unit 15 placed on the second base 41 moves in the direction of the arrow b, that is, the direction in which the surface 11a of the rubber roll 11 is pressed.
  • the polishing unit 15 can press the surface 11a of the rubber roll 11 with a predetermined pressure.
  • the surface 11 a of the rubber roll 11 is actively smoothed, so that formation of deep grooves on the surface 11 a of the rubber roll 11 is further suppressed.
  • the polishing unit 15 constituting the polishing unit 14 may be any as long as the surface 11a of the rubber roll 11 can be uniformly polished.
  • a horusoe, a bite blade, a rotating grindstone, an end mill and the like can be mentioned. Among them, a horusoe is preferably used.
  • the glass chopped strand production apparatus and production method of the present invention can be used in a production process of cutting glass strands (glass fibers) into glass chopped strands, but fibers other than glass fibers (for example, synthetic fibers, carbons) (Fiber, natural fiber), and further, it can be used in applications for cutting linear objects such as metal wires.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)
  • Preliminary Treatment Of Fibers (AREA)
PCT/JP2014/056126 2013-03-19 2014-03-10 ガラスチョップドストランドの製造装置、及び製造方法 WO2014148288A1 (ja)

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CN201480012431.8A CN105121718B (zh) 2013-03-19 2014-03-10 玻璃纤维短切原丝的制造装置以及制造方法

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Cited By (1)

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JP2021017664A (ja) * 2019-07-18 2021-02-15 日本電気硝子株式会社 弾性ロールの製造方法

Families Citing this family (3)

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Publication number Priority date Publication date Assignee Title
JP6764580B2 (ja) * 2016-10-05 2020-10-07 東レ株式会社 チョップド繊維束の製造装置および製造方法
CN107243942A (zh) * 2017-07-20 2017-10-13 苏州市金翔钛设备有限公司 条状物切断机构
CN112847539A (zh) * 2020-12-31 2021-05-28 中交西安筑路机械有限公司 一种纤维切割装置及方法

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JPS5035420Y1 (zh) * 1969-05-27 1975-10-15
JPS55150998A (en) * 1979-05-15 1980-11-25 Ward Machinery Co Method and device for improving effective life cover of amble roll of rotary die cutter
JPS6327237A (ja) * 1986-05-21 1988-02-04 ザ　ワ−ド　マシナリイ　カンパニイ 回転ダイカット装置
JPH09119025A (ja) * 1995-10-27 1997-05-06 Nippon Electric Glass Co Ltd 長繊維の切断方法
JP2001200430A (ja) * 2000-01-14 2001-07-27 Teijin Ltd 繊維束切断装置

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JPH0670291B2 (ja) * 1990-08-06 1994-09-07 日清紡績株式会社 不良篠処理装置
US20040003699A1 (en) * 2002-07-02 2004-01-08 The Procter & Gamble Company Rotary apparatus for severing web materials
JP5470089B2 (ja) * 2010-02-23 2014-04-16 ユニ・チャーム株式会社 カッター装置

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Publication number Priority date Publication date Assignee Title
JPS5035420Y1 (zh) * 1969-05-27 1975-10-15
JPS55150998A (en) * 1979-05-15 1980-11-25 Ward Machinery Co Method and device for improving effective life cover of amble roll of rotary die cutter
JPS6327237A (ja) * 1986-05-21 1988-02-04 ザ　ワ−ド　マシナリイ　カンパニイ 回転ダイカット装置
JPH09119025A (ja) * 1995-10-27 1997-05-06 Nippon Electric Glass Co Ltd 長繊維の切断方法
JP2001200430A (ja) * 2000-01-14 2001-07-27 Teijin Ltd 繊維束切断装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021017664A (ja) * 2019-07-18 2021-02-15 日本電気硝子株式会社 弾性ロールの製造方法

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JP6353246B2 (ja) 2018-07-04
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JP2014205942A (ja) 2014-10-30
CN105121718A (zh) 2015-12-02

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