JP5545153B2 - Transfer machine and tow introduction method using transfer machine - Google Patents

Description

  The present invention relates to a transfer machine that compresses and packs a carbon fiber precursor tow or a flame resistant fiber precursor tow transferred into a packaging container, and a tow introduction method using the transfer machine.

  Since carbon fibers are excellent in specific strength, specific elastic modulus, fire resistance, heat resistance, durability and the like, their application fields are expanding. In recent years, thick carbon fiber precursor tows with more than 50,000 filaments have been adopted in order to increase carbon fiber productivity and reduce costs. Packages are also forced to grow in size.

  For increasing the size of the package, it is considered that a packing method by towing off the tow is advantageous. Moreover, it is said that the packaging method by towing off the tow is also advantageous for the flame resistant fiber precursor tow. In the following, the term tow will be used as a collective name for carbon fiber precursor tows and flame resistant fiber precursor tows.

  In the packing method using toe shake-off, the swing chute disposed on the upstream side of the packing container is reciprocated in a direction orthogonal to the width direction of the tow and the supply direction of the tow, thereby The tow that has passed through the inside can be transferred into the packing container from the toe end of the swing chute. In order to stabilize the state of the flattened form in the constituent fibers of the tow that has been transported and to transfer the stabilized tow into the packing container, to the tow introduced into the swing chute A zigzag waveform is shaped.

  As a device for shaping the zigzag waveform, a pair of gear rolls arranged on the upstream side of the swing chute is used. As a transfer machine in which a pair of gear rolls are arranged on the upstream side of the swing chute, a toe packing device (see Patent Document 1) has been proposed. The tow packing device described in Patent Document 1 will be described below as a conventional example of the present invention.

  As shown in FIG. 9, in the pair of gear rolls 50 in Patent Document 1, the axial length is configured as the same length. In the pair of gear rolls 50, a plurality of gear teeth 52 that are parallel to the axial direction of the gear roll 50 are formed at equal intervals between the outer peripheral edges of the disks 51 that are arranged to face each other. The plurality of gear teeth 52 are configured using a pipe or a round bar, and have a configuration in which an area of more than half of the cross-sectional area of the pipe or the round bar is exposed from the outer peripheral edge of the disc 51 to the outer peripheral side. Yes.

  As a method of passing through the tip of the tow that has been conveyed between the pair of gear rolls 50 configured as described above, in the conventional passing-through method, the rotation is stopped between the pair of gear rolls 50. In addition, a method is adopted in which the tip of the tow is taken and the tip of the tow is alternately inserted between the gear teeth 52 facing each other using an elongated bar or the like. After the tip of the tow is inserted between the pair of gear rolls 50, the pair of gear rolls 50 can be driven to rotate in the transport direction, and the tow can be transported while meshing between the pair of gear rolls 50.

JP 2009-12882 A

  In order to pass the tip of the toe in a conventional manner through the pair of gear rolls described in Patent Document 1, the tip of the toe is placed between the pair of gear rolls 50 engaged in a zigzag manner using an elongated bar. It must pass through, and special skills are required for this work. In addition, when trying to insert by hand without using a long and narrow bar, there is a risk that the hand is caught between the pair of gear rolls 50.

  The present invention provides a transfer machine capable of semi-automatically passing the toe between the pair of gear rolls 50, instead of using a conventionally used stick. It is to provide a method for introducing a tow using the transfer machine.

In order to achieve the above object, in the present invention, in a transfer machine that compresses and packs the carbon fiber precursor tow or flame resistant fiber precursor tow transferred into the packing container through the swing chute,
A pair of gear rolls arranged on the upstream side of the swing chute and forming a zigzag waveform on the flat tow to be supplied to the swing chute has a first gear roll and a second gear roll. ,
The first gear roll has a pair of discs arranged at both ends in the axial direction and a plurality of shafts arranged at equal intervals along the circumferential direction on the outer peripheral edge side between the discs. The length of the second gear roll is configured to be longer than the length of the second gear roll, and the second gear roll is arranged along an outer peripheral edge between the end face and the end face that meshes with the first gear roll disposed at both ends in the axial direction. A plurality of shafts arranged at equal intervals, between a pair of discs in the first gear roll, arranged in a state of being biased toward one of the discs,
The tow disposed on the outer peripheral surface side of the first gear roll in which the first gear roll and the second gear roll are not meshed with each other at the portion where the first gear roll and the second gear roll are meshed with each other through the toe. The moving means is arranged, and the moving means has at least one of an air suction part or an air ejection part, and the air suction part or the air ejection part has a width of the second gear roll. The main feature is that it is arranged at the center position and the lower position in the direction.

  The main feature of the present invention is that a guide is disposed between the pair of gear rolls and the moving means so that the tow is not separated from the outer peripheral surface of the first gear roll.

  Furthermore, the present invention is an introduction method for introducing the tow between the pair of gear rolls using the above-described transfer machine, wherein the toe is disposed on the outer peripheral surface of the first gear roll away from the meshing site with the second gear roll. Another main feature is that the contacted tow is moved to a meshing portion between the first gear roll and the second gear roll.

In the present invention, a pair of gear rolls having different axial lengths are used, and the second gear roll is disposed between the pair of disks provided at both ends of the first gear roll in a state of being biased toward one disk side. The composition is made up.
And as a length dimension of an axial direction, the length dimension of a 1st gear roll is comprised long with respect to the length dimension of a 2nd gear roll. In addition, the second gear roll is disposed between the pair of discs in the first gear roll, and is arranged in a state of being biased toward one disc side in the first gear roll.

Further, there is provided moving means for moving a tow disposed on the outer peripheral surface side of the first gear roll where the first gear roll and the second gear roll are not engaged with each other to a portion where the first gear roll and the second gear roll are engaged.

  Since it is configured in this way, if the toe to be passed through is arranged in contact with the outer peripheral surface of the first gear roll away from the portion where the first gear roll and the second gear roll are engaged, the moving means Thus, the tow can be moved to a portion where the first gear roll and the second gear roll are engaged with each other. That is, the toe can be passed semi-automatically.

  That is, the tow that has been in contact with the outer peripheral surface of the first gear roll away from the portion where the first gear roll and the second gear roll mesh with each other slides on the outer peripheral surface of the first gear roll by the moving means. And the second gear roll are automatically inserted into the meshed portion.

  Even in the case where the toe is passed through, it is possible to pass through the tow that is continuously transported from the apparatus that manufactured the tow without stopping the transport. The tow that has been brought into contact with the outer peripheral surface of the first gear roll for passing through the tow is discharged to the discharge channel side while contacting the outer peripheral surface of the first gear roll while the rotation of the pair of gear rolls is stopped. Will continue to be. The tow discharged to the discharge flow path side is stored in a bucket disposed in the discharge passage.

  Then, by operating the moving means, the tow can be inserted between the pair of gear rolls, and after the tow is inserted between the pair of gear rolls, the tow is cut at the lower end side of the pair of gear rolls. Introduce the tip of the tow into the swing chute. Thereby, the transfer operation of the tow into the packing container can be resumed. The cut tow is stored in a bucket and discarded.

  In this way, if the tow is brought into contact with the outer peripheral surface of the first gear roll at the tip of the tow, the tow is automatically moved to the portion where the first gear roll and the second gear roll are engaged by the action of the moving means. Will be inserted.

  The second gear roll is disposed between the pair of disks in the first gear roll, and is disposed in a state of being biased toward one of the disks. Since it is configured in this way, it is possible to prevent the tow that has moved along the outer peripheral portion of the first gear roll from further moving beyond the meshing portion of the first gear roll and the second gear roll. it can.

  As described above, in the present invention, the tow can be surely inserted between the pair of gear rolls without causing danger to the operator during the passing of the tow and without using a rod for passing through.

  As the moving means, an air flow flowing in a direction intersecting the flow path of the tow that has flowed out of the pair of gear rolls can be used. In order to generate an air flow, an air suction part or an air ejection part can be provided. It is sufficient that at least one of the air suction part or the air ejection part is provided, and an arrangement configuration in which both are opposed to each other may be employed.

  As the air flow generated by the air suction section or the air ejection section, the tow that has been in contact with the outer peripheral surface of the first gear roll slides on the outer peripheral surface of the first gear roll while the second gear roll and the second gear roll. It can be set as the structure which can give urging | biasing force with respect to the direction which moves to the meshing part side with a gear roll.

A guide can be disposed between the pair of gear rolls and the moving means so that the tow does not leave the outer peripheral surface of the first gear roll. By the guide, the tow can be moved to a position where the first gear roll and the second gear roll are engaged with each other, and the tow can be reliably conveyed by the pair of gear rolls.

It is a whole perspective view of a transfer machine. (Example) It is a perspective view which shows the outline | summary of a pair of gear roll. (Example) It is a top view which shows the arrangement structure of a pair of gear roll. (Example) It is a top view which shows the state which opened the door of the case which has covered a pair of gear roll. (Example) It is a top view which shows the state which made the toe contact the outer peripheral surface of a 1st gear roll. (Example) It is a top view which shows the state which rotationally driven a pair of gear roll. (Example) It is a top view which shows the state by which the tow was inserted between a pair of gear rolls. (Example) It is a perspective view which shows the modification of a switching apparatus. (Example) It is a perspective view which shows the outline | summary of a pair of gear roll. (Conventional example)

  Preferred embodiments of the present invention will be specifically described below with reference to the accompanying drawings. As the configuration of the press plate in the transfer machine of the present invention, in addition to the configuration described below, if the shape and arrangement configuration can solve the problems of the present invention, it is possible to adopt the shape and arrangement configuration. It can be done.

  FIG. 1 is an overall schematic view of a carbon fiber precursor tow and flame resistant fiber tow transfer machine used in an exemplary embodiment of the present invention. As shown in FIG. 1, the transfer machine 1 includes a pair of gear rolls 2, a swing chute 3, a reciprocating drive conveyor 5 that reciprocates the packing container 4, and a press plate 10. The produced tow 30 is turned by the turning rolls and supplied between the pair of gear rolls 2. A guide 6 can be disposed on the downstream side of the pair of gear rolls 2. The guide 6 can move the tow to a position where the first gear roll 12 and the second gear roll 13 are engaged with each other. A packing container 4 is disposed below the swing chute 3.

  The reciprocating drive conveyor 5 disposed below the swing chute 3 is configured as a transport device that reciprocates the packing container 4 in the toe width direction. When the packing container 4 is reciprocated by the reciprocating drive conveyor 5, a pair of press plates 10 are provided above the folding position of the packing container 4, respectively.

  As shown in FIG. 2, the pair of gear rolls 2 includes a first gear roll 12 having a longer axial length and a second gear roll 13 having a shorter axial length. As shown in FIGS. 1 and 3, the pair of gear rolls 2 are accommodated in a cover case 16. The cover case 16 has a configuration in which the vertical direction in which the tow 30 flows is open and covers the periphery of the pair of gear rolls 2. On the front side of the cover case 16, a door 16a that can be opened and closed is provided. The door 16a also has a function as a safety device, and is configured to stop the rotation of the first gear roll 12 and the second gear roll 13 while the door 16a is opened.

A pair of discs 12a are provided at both ends of the first gear roll 12, and a plurality of shafts 12b parallel to the axial direction of the gear roll 12 are provided on the outer peripheral edges of the pair of discs 12a. Are formed at equal intervals along the circumferential direction. The plurality of shafts 12b are configured using pipes, round bars, or the like, and are configured such that the outermost peripheral edges of the pipes or round bars are within the outer peripheral edges of the pair of disks 12a.

  A pair of spur gear-shaped plates 13a is provided at both ends of the second gear roll 13, and the shape at the tip of each plate 13a is formed in a rounded shape. Between the pair of plates 13a, a shaft 13b having a diameter substantially the same as the rounded shape at the tip of each plate 13a is disposed. The plurality of shafts 13b are configured using pipes, round bars, or the like, like the shaft 12b in the first gear roll 12.

  The tip of each plate 13 a and each shaft 13 b in the second gear roll 13 can be inserted between the shafts 12 b of the first gear roll 12.

  Further, the outer peripheral diameter of the outermost peripheral edge of the shaft 12b in the first gear roll 12 and the outer peripheral diameter of the outermost peripheral edge of the shaft 13b of the second gear roll 13 are configured to have substantially the same outer peripheral diameter. The axial length of the first gear roll 12 is configured to be longer than the axial length of the second gear roll 13. The second gear roll 13 is disposed between the pair of discs 12a in the first gear roll 12 so as to be biased toward the one disc 12a.

  For example, the axial length of the first gear roll 12 can be configured to 150 mm, and the axial length of the second gear roll 13 can be configured to 100 mm. Moreover, the clearance gap between the shaft 12b of the 1st gear roll 12 and the shaft 13b of the 2nd gear roll 13 can be comprised in 25-35 mm. A zigzag waveform is formed on the tow 30 while the tow 30 is sandwiched within the spacing interval.

  The state where the tow 30 is sandwiched between the shaft 12b of the first gear roll 12 and the shaft 13b of the second gear roll 13 is a state where the first gear roll 12 and the second gear roll 13 are engaged with each other. In the invention, even if the tow 30 is not sandwiched within the separation distance between the shaft 12b of the first gear roll 12 and the shaft 13b of the second gear roll 13, even if the tow 30 is in the state shown in FIG. It is described as a state in which the gear roll 12 and the second gear roll 13 are engaged with each other.

  The first gear roll 12 and the second gear roll 13 are rotationally driven in the opposite directions at a constant speed. As a result, the tow 30 conveyed between the first gear roll 12 and the second gear roll 13 does not cause a speed difference between the first gear roll 12 and the second gear roll 13 without causing a tow difference. 30 can be transported.

  Further, as described above, by configuring the shafts 12b and 13b using pipes or round bars, the pair of gear rolls 2 can be reduced in weight, and the material constituting the pair of gear rolls 2 and the pair of gear rolls 2 can be reduced. The manufacturing cost can be reduced. Further, if the pipe or round bar is configured to be detachable from the end faces of the pair of discs 12a and the pair of plates 13a using a bolt and nut structure, a part of the shafts 12b and 13b is formed. Even if the pipe or the round bar is damaged, the damaged shafts 12b and 13b can be easily replaced, and maintenance can be easily performed.

  In addition, when a configuration using a bolt or a nut is used to attach a pipe or a round bar to the end face of each plate 13a of the second gear roll 13, there is a thread thread between the bolt or nut and the toe 30. In order to avoid the occurrence, a counterbore is formed on the end face of each plate 13a, and it is desirable that the bolt head or nut be buried.

Alternatively, a fitting hole may be formed in the end face of each plate 13a of the second gear roll 13, and the shaft 13b may be fitted into the fitting hole. Further, as the mounting configuration of the disc 12a and the shaft 12b in the first gear roll 12, a mounting configuration similar to the mounting configuration of the end surface of each plate 13a of the second gear roll 13 and the shaft 13b can be employed.

  As shown in FIG. 3, the pair of gear rolls 2 is rotationally driven by a gear roll drive motor 20, and the rotation of the gear roll drive motor 20 synchronizes the first gear roll 12 and the second gear roll 13 by the interlocking gear 22. Distributed to rotation in the reverse direction. By each distributed rotation, the first gear roll 12 and the second gear roll 13 and the pair of gear rolls 2 can be synchronously rotated in the reverse direction at a constant speed.

  As shown in FIG. 1, a guide 6 is provided below the pair of gear rolls 2, and the tow 30 carried out from the pair of gear rolls 2 is guided by the guide 6, and the tow is guided to the first gear roll 12 and the second gear roll 2. The gear roll 13 can be moved to a meshed position. When the tow 30 is passed between the pair of gear rolls 2, an air suction 18 is provided to insert the passed tow 30 into the gap between the shaft 12 b of the first gear roll 12 and the shaft 13 b of the second gear roll 13. ing.

The air suction 18 can be provided at the center position of the second gear roll 13. When the tow 30 is passed through a portion on the outer peripheral surface side of the first gear roll 12 where the first gear roll 12 and the second gear roll 13 are not meshed with each other when the tow 30 is passed, suction from the air suction 18 is performed. By the force, the position of the tow 30 can be moved to a position where the first gear roll 12 and the second gear roll 13 are engaged with each other.
The details of the moving method for moving the tow 30 to the position where the first gear roll 12 and the second gear roll 13 are engaged with each other will be described later with reference to FIGS.

  As the air suction 18 in the illustrated example, a configuration in which an air soccer is arranged is shown. In the air soccer, the air blown from the air inflow portion 18a is changed in the direction of the arrow in the inflow pipe 18b, and the inlet 19a of the inflow pipe 18b is in a negative pressure state. Both the air from the air inflow portion 18a changed in the direction of the arrow in the inflow pipe 18b and the air sucked from the inlet 19a in a negative pressure state flow out from the outlet of the inflow pipe 18b. .

  The configuration of the air suction 18 is not limited to the configuration of the air soccer described above, and a conventionally known suction device can also be used. Further, instead of the configuration of the air suction 18, other configurations may be adopted as long as the tow 30 can be moved along a direction orthogonal to the conveying direction of the tow 30 in the guide 6. For example, an air ejection device may be provided on the side opposite to the position where the air suction 18 is disposed with respect to the guide 6.

  By providing the guide 6 below the pair of gear rolls 2, a suction force acts on the tow 30 on the downstream side of the guide 6 even if the air suction 18 is not provided at the center position of the second gear roll 13. The air suction 18 can be provided at a position where the air can be moved. That is, the suction force from the air suction 18 moves the tow 30 below the pair of gear rolls 2 along the guide 6 and moves the tow 30 to the position where the first gear roll 12 and the second gear roll 13 are engaged with each other. Can be made.

  A bucket 25 for discarding unnecessary parts such as the tip of the tow 30 is disposed below the pair of gear rolls 2. The disposal into the bucket 25 can be performed by starting the suction of air by the air suction 18.

Or as shown to Fig.8 (a)-FIG.8 (c), it can also be set as the structure using the switching rod 8a and the switching board 8b. The switching rod 8a shown in FIG. 8 (a) rotates about the rotating portion 14 and presses the tow 30 flowing down in contact with the outer peripheral portion of the first gear roll 12, thereby swinging the chute. The flow path introduced into 3 can be switched to a flow path that leads to a bucket 25 disposed on the side of the reciprocating drive conveyor 5. When the tow 30 is introduced into the swing chute 3, the switching rod 8a can be rotated to the retracted position.

  Further, instead of using the switching rod 8a, the switching plate 8b having a downward inclined surface as shown in FIG. The tow 30 flowing down in contact with the outer peripheral portion of the one gear roll 12 can be switched to a flow path that leads into a bucket 25 disposed on the side of the reciprocating drive conveyor 5.

  Instead of the configuration in which the switching plate 8b is rotated, the switching plate 8b can be slid in the front-rear direction of the switching plate 8b via the sliding drive unit 15. At this time, by changing the flow path of the tow 30 via the switching rod 8a and the switching plate 8b, the tow 30 flowing in contact with the outer peripheral portion of the first gear roll 12 is changed to the outer peripheral portion of the first gear roll 12. Can be automatically inserted into the meshing portion of the first gear roll 12 and the second gear roll 13. When the tow 30 is introduced into the swing chute 3, the switching plate 8b can be retracted to the retracted position.

  The swing chute 3 is manufactured by pressing a metal plate such as stainless steel, aluminum alloy, or copper alloy, and is manufactured by fixing means such as welding, and is configured as a rectangular cylindrical body. As shown in FIG. 1, the opening cross section of the swing chute 3 at the toe introduction port 3a is rectangular, and the opening cross section of the toe outlet end 3b is also rectangular.

  The swing chute 3 can reciprocate in the swing direction S orthogonal to the toe width direction. The inner dimension of the swing chute 3 in the swing direction S is configured such that the inner dimension at the toe inlet 3a is wider than the inner dimension at the toe outlet end 3b.

Further, the inner space dimension at the toe outlet end 3b is configured such that the inner space dimension in the swinging direction S is narrowed to approximately half the inner space dimension in the toe width direction. . For example, the inner dimension in the swinging direction S (tow thickness direction) can be configured to be about 170 mm at the toe introduction port 3a and reduced to 50 mm at the toe ejection end 3b. In addition, the inner dimension in the width direction of the tow can be configured to be about 100 mm for both the toe inlet 3a and the toe outlet end 3b.
It should be noted that the inner dimension at the toe inlet 3a and the inner dimension at the toe outlet end 3b can be set according to the thickness and width dimension of the tow 30 to be transferred into the packaging container 4.

  Thus, the inner dimension of the swing chute 3 is configured to be constant at the toe introduction port 3a and the toe outlet end 3b in the toe width direction, and the inner dimension in the swing direction S is the toe introduction. The dimension at the toe ejection end 3b can be reduced more than the dimension at the mouth 3a. By configuring in this way, it is possible to prevent the tow 30 traveling inside the rocking chute 3 from being twisted. With this configuration, when the tow 30 is swung downward from the swing chute 3, the tow 30 is transferred into the packaging container 4 while maintaining the initial flat shape without causing twisting. Can do.

The swing chute 3 can be reciprocated in a direction orthogonal to the width direction of the tow 30 by a swing servo motor (not shown). As shown in FIG. 1, a rotation shaft 26 driven by a swinging servo motor (not shown) is coupled to a bracket 24 formed on the upper end edge of the swing chute 3. The bracket 24 can be fixed to the swing chute 3 by fixing means such as welding. Alternatively, the bracket 24 may be configured such that a metal plate constituting the swing chute 3 is extended.
In this way, the swing of the swing chute 3 can be directly controlled by controlling the swing servo motor by the speed control device.

  The configuration for controlling the swing chute 3 using the swing servo motor has been described. However, the swing chute 3 is supported by a movable support (not shown) that supports the swing chute 3 and is driven by the swing servo motor. The pivot shaft 26 can be configured so that the swing chute 3 can swing through a known swing mechanism such as a cam mechanism or a link mechanism. The swinging width of the toe swinging end 3b in the swing chute 3 is substantially the same as the inner empty dimension in the swinging direction of the swing chute 3 in the packaging container 4 disposed below the swing chute 3.

  In addition to swinging in the swing direction S, the swing chute 3 can move up and down with respect to the packaging container 4. That is, the swing chute 3 can be moved up and down by moving a movable support (not shown) supporting the swing chute 3 up and down by a lift motor (not shown). For example, a movable support body (not shown) that supports the swing chute 3 is screwed into a lifting screw rod that is rotated forward and backward by a lifting motor (not shown), and the movable support body (not shown) is guided in the vertical direction. By making it the structure which can slide along a guide rod, it can raise / lower without moving the movable support body which is not shown in figure.

  By moving the swing chute 3 up and down, the height of the tow 30 transferred into the packaging container 4, that is, a height position that does not interfere with the transfer surface of the tow corresponding to the rise of the transfer surface of the tow Can swing the swing chute 3.

  In the present invention, as shown in FIG. 1, in order to apply a pulling force in the swinging direction to the tow 30 traveling in the swing chute 3, the tow inlet 3 a of the swing chute 3 is provided inside the swing chute 3. An air supply unit 23 that creates an air flow toward the vehicle is provided. In place of the air supply unit 23, an air supply unit that creates an air curtain-like air flow in the direction of ejection can be provided in the vicinity of the toe ejection end 3b of the swing chute 3. In order to prevent damage due to friction when the tow 30 passes the swing chute 3, the inner surface of the swing chute 3 is buffed.

  As shown in FIG. 1, the reciprocating drive conveyor 5 arranged below the swing chute 3 is composed of a roll conveyor in which a plurality of rotating rolls 5a are arranged in parallel on the same horizontal plane. At least one rotating roll 5a among the plurality of rotating rolls 5a is configured as a drive roll. A sprocket is provided at the shaft end of each rotary roll 5a, and a drive chain is hung between the sprockets. By controlling the rotation of the drive roll, the rotary rolls 5a can be synchronized and rotated in the same direction at a constant speed.

  As a configuration of the reciprocating drive conveyor 5, a configuration using a rotating roll has been described. However, the reciprocating drive conveyor 5 is not limited to the configuration of a roll conveyor using a rotating roll, and it is transported by a push conveyor, a belt conveyor, or the like. A controllable transport device can be used. In the reciprocating drive conveyor 5, a position detection sensor such as a photoelectric tube detector or a proximity switch is provided at a folding position where the packing container 4 is reciprocated.

When it is detected by the position detection sensor that the packaging container 4 conveyed by the reciprocating drive conveyor 5 has reached the folded end when reciprocating, this detection signal is sent to a control unit (not shown). Become. The control unit outputs a control signal for inverting the drive roll based on the received signal, and controls the rotation and the rotation direction of the drive roll. When the position detecting sensor detects that the packaging container 4 has reached the folded end, the packaging container 4 is folded in the opposite direction. This control is repeated until the tow 30 is filled in the packaging container 4.

  The control unit can also stop the packaging container 4 for an arbitrary time by a control signal from the outside, for example, from when the packaging container 4 reaches the folding position to when the folding is started. The tow 30 can be transferred into the packing container 4 even during the time when the movement of the packing container 4 is stopped at each turn-back position. The tow 30 can be transferred to the end in the toe width direction without any gap. And the transfer state of the tow 30 can be improved. Further, during this stop time, the packaging container 4 filled with the tow 30 can be replaced with the next empty packaging container 4.

  The reciprocating speed of the packaging container 4 can be set to, for example, 1/100 to 1/16 of the spinning supply speed. By reciprocating the packing container 4 in the width direction of the tow 30 within this speed range, the tow 30 transferred into the packing container 4 can be prevented from falling down obliquely, and in a uniform state. Can be stored.

  As shown in FIG. 1, a press plate 10 is provided above each folding position when the packaging container 4 reciprocates. Each press plate 10 provided above each folding position can press both ends where the tow 30 transferred into the packaging container 4 is folded. As a result, the volume of the tow 30 that can be stored in the packaging container 4 can be increased.

  Although FIG. 1 shows a configuration in which the press plate 10 is disposed above each folding position of the packaging container 4, a configuration in which a pair of press plates 10 is disposed above each folding position may be used. . At least the press plate 10 disposed above each folding position of the packaging container 4 as long as both ends of the tow 30 transferred into the packaging container 4 can be pressed by the press plate 10. There is no limit to the number.

  A pair of press plates 10 arranged at each folding position of the packaging container 4 is configured to be able to move up and down by an expansion and contraction operation of an air cylinder (not shown). FIG. 1 shows a pressing member 21 connected to a piston rod of an air cylinder (not shown).

  The configuration of the air cylinder that moves the press plate 10 up and down can also be configured as a multistage cylinder. When a multistage cylinder is used, the required stroke length can be ensured and the entire length of the cylinder can be made compact.

  In the present invention, the pressing operation by the press plate 10 is performed from the initial stage of transferring the tow 30 even for the large packaging container 4. Moreover, it is necessary to make the position of the press plate 10 follow the transfer surface of the transferred tow 30 that gradually rises. For this reason, the expansion stroke of the air cylinder that moves the press plate 10 up and down is configured so that the initial stage is a normal expansion stroke.

  The press plate 10 has a plurality of openings formed in a stainless plate. By forming a large number of openings in the press plate 10, the air flow generated when the tow 30 is compressed by the press plate 10 can be released to the back side of the press plate 10 through the openings. Thereby, the tow 30 can be efficiently compressed by the press plate 10.

  By the way, the packing container 4 is also moved away from the turning point by the reciprocating drive conveyor 5 even when the pressing operation by the press plate 10 is performed. In order for the press plate 10 to follow the movement of the packaging container 4, a hinge mechanism capable of swinging with respect to the reciprocating direction of the packaging container 4 is provided as a configuration in the mounting portion of the press plate 10. You can also.

  Next, a moving method for moving the tip of the tow 30 to a portion where the first gear roll 12 and the second gear roll 13 are engaged will be described with reference to FIGS. After the end of the tow 30 being conveyed passes between the pair of gear rolls 2, the tip of the tow 30 that has been newly conveyed must pass between the pair of gear rolls 2. In the present invention, when such a situation occurs, the rotation of the pair of gear rolls 2 is stopped as shown in FIG. At the same time, the door 16a of the cover case 16 is opened as shown in FIG. 4 to prevent the pair of gear rolls 2 from starting to rotate unexpectedly.

  That is, in the state where the door 16a is opened, even if a control signal for rotating the pair of gear rolls 2 is output to the gear roll drive motor 20, supply of electric power for driving the gear roll drive motor 20 is cut off. I can keep it.

  From the state shown in FIG. 4, the tip of the tow 30 is brought into the cover case 16 from above the cover case 16 so that the tow 30 comes into contact with the outer periphery of the first gear roll 12 that is disengaged from the second gear roll 13. insert. At this time, as shown in FIG. 1, the outflow passage of the tow 30 is switched to become a discharge passage for flowing into the bucket 25 arranged on the side of the reciprocating drive conveyor 5 from the swing chute 3 side.

  The tow 30 in contact with the outer peripheral portion of the first gear roll 12 can flow into the bucket 25 as shown by the solid line in FIG. Note that the tow 30 indicated by a dotted line in FIG. 1 shows a state where the tow 30 is transferred into the packaging container 4 via the swing chute 3.

  At this time, the state of the tow 30 in contact with the outer peripheral portion of the first gear roll 12 is the state shown in FIG. When the door 16a of the cover case 16 is closed and the pair of gear rolls 2 are rotated, the tow 30 is moved along the outer peripheral portion of the first gear roll 12 with respect to the tow 30 in the cover case 16 by suction in the air suction 18. The movement is done. As shown in FIG. 7, the tow 30 is automatically inserted into a portion where the first gear roll 12 and the second gear roll 13 are engaged with each other while moving along the outer peripheral portion of the first gear roll 12. become.

  The second gear roll 13 is disposed between the pair of discs 12 a in the first gear roll 12, but the tow 30 moved along the outer periphery of the first gear roll 12 is connected to the first gear roll 12 and the second gear roll 13. It is desirable that the end surface of one plate 13a of the second gear roll 13 is disposed at a position close to the one disk 12a of the first gear roll 12 in order to prevent the meshing portion from being exceeded. It becomes composition.

  When the zigzag waveform starts to be shaped on the tow 30 by the rotation of the pair of gear rolls 2, the tow 30 shaped with the zigzag waveform is cut and the tip of the cut tow 30 is swung. Introduce into shoot 3. Thereafter, by swinging the swing chute 3, reciprocating movement of the packing container 4, etc., the tow 30 having a zigzag waveform can be transferred into the packing container 4. The tow 30 whose end portion has been cut is stored in the bucket 25 and is transported to the disposal site together with the bucket 25.

  In order to facilitate the automatic insertion of the tow 30 moving along the outer periphery of the first gear roll 12 into the meshing portion of the first gear roll 12 and the second gear roll 13 as shown in FIG. A guide surface can also be formed on the end surface of the plate 13a of the second gear roll 13.

That is, the tow 30 that contacts the end surface of the plate 13a by moving along the outer peripheral portion of the first gear roll 12 is engaged with the first gear roll 12 and the second gear roll 13 beyond the end surface of the contacted plate 13a. In order to facilitate insertion into the portion, it is possible to form a frustoconical side surface with the outer peripheral edge of the end surface of the plate 13a with which the tow 30 abuts as the bottom surface. The tow 30 that has moved along the outer peripheral portion of the first gear roll 12 comes into contact with the frustoconical side surface so that the tow 30 is easily inserted into the meshing portion of the first gear roll 12 and the second gear roll 13. be able to.

  Since the end surface of the plate 13a is formed in a spur gear shape, the truncated cone shape with the outer peripheral edge of the end surface of the plate 13a as the bottom surface is partially cut at equal intervals corresponding to the spur gear shape. It has a complicated structure.

  The present invention can be suitably applied to the toe-through of a pair of gear rolls.

DESCRIPTION OF SYMBOLS 1 ... Transfer machine 3 ... Swing chute 3a ... Toe introduction port 3b ... Toe ejection end 4 ... Packing container 6 ... Guide 8a ... Switching rod 8b ... Switching plate DESCRIPTION OF SYMBOLS 10 ... Press plate 12 ... 1st gear roll 13 ... 2nd gear roll 14 ... Turning part 15 ... Sliding drive part 16 ... Cover case 16a ... Door 18 ... Air suction 18a ... Air inflow portion 18b ... Channel pipe 19a ... Inlet 19b ... Outlet 21 ... Pressing member 30 ... Toe 50 ... Gear roll 51 ... Disk 52 ..Gear tooth S ... Oscillating direction

Claims (3)

In the transfer machine that compresses and packs the carbon fiber precursor tow or the flame resistant fiber precursor tow transferred into the packing container through the swing chute,
A pair of gear rolls arranged on the upstream side of the swing chute and forming a zigzag waveform on the flat tow to be supplied to the swing chute has a first gear roll and a second gear roll. ,
The first gear roll has a pair of discs arranged at both ends in the axial direction and a plurality of shafts arranged at equal intervals along the circumferential direction on the outer peripheral edge side between the discs. The length dimension is configured to be longer than the length dimension of the second gear roll,
The second gear roll has an end face meshing with the first gear roll disposed at both ends in the axial direction and a plurality of shafts arranged at equal intervals along an outer peripheral edge between the end faces. Between the pair of discs in a state of being biased toward one of the discs,
The tow disposed on the outer peripheral surface side of the first gear roll in which the first gear roll and the second gear roll are not meshed with each other at the portion where the first gear roll and the second gear roll are meshed with each other through the toe. Moving means for moving is disposed;
The moving means has at least one of an air suction part or an air ejection part, and the air suction part or the air ejection part is at a center position and a lower position in the width direction of the second gear roll. A transfer machine arranged.   The transfer machine according to claim 1, wherein a guide is disposed between the pair of gear rolls and the moving means so that the tow does not leave the outer peripheral surface of the first gear roll. An introduction method for introducing the tow between the pair of gear rolls using the transfer machine according to claim 1 or 2,
A tow introduction method for moving the tow, which is in contact with the outer peripheral surface of the first gear roll, away from the meshing site with the second gear roll, to the meshing site with the first gear roll and the second gear roll.

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