JP5631620B2 - Viscous fluid filling apparatus and viscous fluid filling method - Google Patents

Description

  The present invention relates to a filling apparatus for filling a member to be filled formed in a tubular shape with a viscous fluid (such as grease) and a filling method thereof.

  Conventionally, there has been disclosed an invention for preventing a string pulling phenomenon from a nozzle that discharges a viscous fluid when the viscous fluid such as grease is filled.

  For example, Patent Document 1 discloses an invention relating to a grease injection device that injects grease into a component having a continuous ring-shaped opening. That is, an injection port for discharging grease arranged in a ring shape corresponding to the opening is inserted into an opening formed in a ring shape on the outer periphery of the rotating shaft, and after the injection of the grease is finished, the part is A configuration is disclosed in which grease threading is cut off by rotating around a rotation axis. Furthermore, in addition to these configurations, a configuration is disclosed in which the stringing of the grease is cut off by using a jet of compressed air.

  In Patent Documents 2 and 3, a ballpoint pen having shear thinning viscosity or low viscosity as ink characteristics is manufactured for a ballpoint pen filled with a follower (also referred to as a backflow prevention body, a backflow prevention plug, or an ink follower) at the rear end. A method is disclosed.

Japanese Patent Laid-Open No. 9-47707 Japanese Patent No. 395858 Japanese Patent No. 322884

  In the invention disclosed in Patent Document 1, as a countermeasure against the yarn drawing phenomenon after the grease is injected, the grease in which the yarn drawing phenomenon occurs is cut by rotating parts or blowing compressed air. In this case, the thread stringing is instantaneously stretched by the rotation of the component, and the grease is scattered. Furthermore, grease is further scattered by the blowing of compressed air.

  Even in the filling of the grease-like follower in the ballpoint pen manufacturing method disclosed in Patent Documents 2 and 3, a yarn drawing phenomenon occurs after the follower injection. As a countermeasure, even if the core (ink tank) is rotated in the same manner as in the configuration disclosed in Patent Document 1 or compressed air is blown, splashing of grease due to stretching of the stringer of the follower (grease) occurs. To do. Further, the appearance of the ink tank deteriorates due to the adherence of the follower scattered near the rear end opening of the ink tank. As in the configuration disclosed in Patent Document 3, it is conceivable to cut the rear end of the ink tank to which the follower scattered matter adheres in the final process, but this is not preferable because the member is wasted.

  The gist of the present invention is to insert the axial center of the nozzle that discharges the viscous fluid and the axial center of the tubular member to be filled filled with the viscous fluid so as to discharge the viscous fluid. Thereafter, the viscous fluid filling apparatus and the viscous fluid filling method are characterized in that the nozzle and the member to be filled are relatively rotated.

  According to the present invention, when the viscous member such as grease is filled in the filling member formed in a tubular shape, the axis of the nozzle from which the viscous fluid is discharged is substantially aligned with the axial center of the filling member. Can do. And after discharging a viscous fluid, the viscous fluid formed in the thread form will be twisted off by rotating a nozzle and a to-be-filled member relatively. That is, since the axis of the nozzle and the axis of the member to be filled are substantially coincident with each other, the rotation axes of both are substantially coincident with each other during relative rotation. Then, the viscous fluid extending in the form of a thread is not pulled out unlike the prior art, and the viscous fluid extending in the form of a thread is twisted off. Therefore, it is possible to prevent the viscous fluid from being scattered as compared with the case where the viscous fluid extending in a string shape is pulled.

It is the perspective view which showed the Example of the follower filling apparatus of the ball-point pen to which this invention is applied, and was seen from the apparatus front left upper side. It is the perspective view seen from the front right upper side of the follower filling apparatus of FIG. It is a left view of the follower filling apparatus of FIG. It is a core of the ball-point pen which is a member to be filled according to the present invention. It is a figure which shows the process at the time of implementing the filling method of the viscous fluid of this invention in the core of a ball-point pen.

  Embodiments of the present invention will be described below with reference to the drawings.

  1 to 3 show a viscous fluid filling apparatus according to the present invention. In the present embodiment, the present invention is applied as a device that fills the rear end of the center of the ballpoint pen with a grease-like follower that prevents backflow of ink.

  A follower filling device 1 which is a viscous fluid filling device is a part of an inking device (not shown) for inking and assembling into the core of a ballpoint pen, and a frame 2 on the same plane (see FIG. 3). It is installed on the top.

  A schematic configuration of the follower filling apparatus 1 will be described. A first moving means 20 is installed on the front side of the gantry 2. On the first moving means 20, a discharge unit 30 for discharging the follower filling the core 100 is slidably provided. A placement unit 40 on which the core 100 that is sequentially transported from the upstream side of the assembly process is placed at a position that approaches and separates from the discharge unit 30. Below the mounting unit 40, second moving means 50 that moves the mounting unit 40 up and down is provided. A motor unit 60 is provided from above the placement unit 40 to the back surface (the side opposite to the first moving means 20).

  Hereinafter, the configuration of the follower filling apparatus 1 will be described in more detail. The first moving means 20 is provided with a base 21 fixed to the gantry 2. A guide rail 22 is fixed on the base 21. The guide rail 22 supports a slider plate 23 provided above so as to be slidable in the front-back direction. An air slide table 24 is fixed above the slider plate 23. The air slide table 24 slidably supports the guide block 24a in the front-back direction. The air slide table 24 uses air of a predetermined pressure as a drive source. A speed controller (adjusting means) is provided on a circuit of an air device connected to the air slide table 24, and is configured to be able to adjust the moving speed of the guide block 24a.

  Here, although not shown, the slider plate 23 is connected to a connecting rod from a power source such as a drive cam provided on the lower surface of the gantry 2 and moves in the front-rear direction. The moving distance of the slider plate 23 is set to be several times longer than the moving distance of the guide block 24a by the air slide table 24. Therefore, the moving distance of the slider plate 23 is longer than the moving distance of the guide block 24a, but the moving speed of the slider plate 23 is set faster. However, while the moving speed of the slider plate 23 is mechanically fixed depending on the shape and rotational speed of the drive cam, the moving speed of the guide block 24a can be adjusted by the speed controller (adjusting means) described above.

  The moving distance of the guide block 24a is mechanically restricted by a restriction means (stopper) not shown.

  A discharge unit 30 is fixed on the upper surface of the guide block 24a. The discharge unit 30 is provided with a set of two fixed valves 31a and 31b. The metering valves 31a and 31b are well-known metering valves formed so that viscous fluid (follower 105) can be discharged by the action of pistons and the like in the cylinder blocks 312a and 312b and air. The discharge amount of the follower (105) can be adjusted by the discharge amount adjusting screws 311a and 311b. The metering valves 31a and 31b are always supplied with a follower (105), which is a viscous fluid, from a storage tank (not shown) via an air pump. In the illustrated example in this embodiment, piping and electrical wiring are omitted.

  Nozzles 32a and 32b are provided at the discharge ports of the metering valves 31a and 31b. The tip portions (nozzle tip portions) 321a and 321b of the nozzles 32a and 32b are formed in a needle shape, and an opening portion (opening end 102a) on the opposite side of the pen tip 101 of the ink tank 102 of the core 100 of the ballpoint pen. It is formed so that it can be inserted into. The follower (105) discharged from the metering valves 31a and 31b is discharged from the tips of the nozzles 32a and 32b (tips of the nozzle tip portions 321a and 321b).

  In the mounting unit 40, the core 100 conveyed from a conveying means (not shown) has the pen tip 101 facing the back side (in other words, the opening (opening end 102a) of the ink tank 102 is directed to the front side). To be placed). The core 100 is transported from the right side surface of the follower filling device 1 toward the left side surface. In the present embodiment, the cores 100 are transported in pairs.

  More specifically, mounting members (a front-side mounting member 41a and a back-side mounting member 41b) are provided via a fixed block 54 fixed to an elevating block 53 provided in the second moving means 50 described later. It has been. Here, in the front side surface and the back side surface of the fixed block 54, groove portions 541a and 541b are provided in the vertical direction, respectively. And base end part 411a, 411b formed in each plate shape of the front side mounting member 41a and the back side mounting member 41b makes the plane face the front side (or back side), and is the front of the fixed block 54. It is slidably engaged with grooves 541a and 541b formed on the side surface and the back side surface, respectively. Further, the base end portions 411a and 411b are fixed to the fixing block 54 through fixing bolts in long holes opened in a plane. Therefore, when the fixing bolts are loosened, the vertical positions of the front side mounting member 41a and the back side mounting member 41b can be adjusted.

  The front side mounting member 41a is formed in a plate shape as a whole, and the thickness direction is provided parallel to the front side-back side direction. A beam-like portion 412a extends in a beam shape from above the base end portion 411a toward the left side surface (in other words, the downstream side in the feed direction FD). Further, V-grooves 413a, 414a, 415a, and 416a are provided on the upper surface of the beam-like portion 412a at four locations from the front side to the back side.

  On the other hand, the back-side mounting member 41b is formed with a block-like block-like portion 412b1 extending from above the base end portion 411b to the front side. A plate-like plate-like portion 412b2 extends from the block-like portion 412b1 toward the left side surface (in other words, the downstream side in the feed direction FD). The plate-like portion 412b2 is provided with the plate thickness direction parallel to the front side-back side direction. Further, V grooves 413b, 414b, 415b, and 416b are provided at four locations on the upper surface of the block-like portion 412b1 and the plate-like portion 412b2 from the front side to the back side.

  V-grooves 413a, 414a, 415a, 416a, 413b, 414b, 415b, and 416b provided on the upper surfaces of the front-side mounting member 41a and the back-side mounting member 41b are provided with the core 100 installed in the front-back direction. It is comprised so that it can mount. For example, in the illustrated example of this embodiment, the V grooves 413a and 413b correspond to the upstream side.

  As in the present embodiment, the groove portion on which the core 100 is placed is V-shaped, so that the center core 100 is centered only by placing the core 100, which is a member to be filled formed in a cylindrical tubular shape. can do. Therefore, there is no need to center the assembly machine (discharge unit 30 in this embodiment), and high-precision assembly work can be realized easily.

  Further, in the corresponding V grooves 415 a, 415 b, 416 a, and 416 b at two downstream positions of the front side mounting member 41 a and the back side mounting member 41 b, support rollers 417 that support the rotation of the core 100 around the axis. Is provided. The front-side mounting member 41a is provided with two sets (four in total) on the front side of the beam-like portion 412a, and the plate-like portion 412b2 is provided with two sets (total of eight) on the front side and the back side. Yes. Therefore, in the V grooves 415a, 415b, 416a, and 416b provided with the support roller 417, centering is performed by the inclined surface of the V groove when the core 100 is placed, and the support rollers formed in pairs are used. It is supported so as to be rotatable around the axis. Although details will be described later, the core 100 is filled with followers at the positions of the V grooves placed in the V grooves 415a, 415b, 416a, and 416b (hereinafter referred to as “follower filling V grooves”).

  Below the mounting unit 40, second moving means 50 is provided. The second moving means 50 is provided with a guide means 51 having a cylindrical portion 51a whose axis is perpendicular to the gantry 2 and a flange portion 51b formed on the outer periphery thereof. The flange portion 51 b is fixed to the gantry 2. A guide bush 51c formed in a cylindrical shape is provided on the inner periphery of the cylindrical portion 51a. The driven rod 52 formed in a round bar shape is supported by the guide bush 51c so as to be slidable in the vertical direction. On the other hand, the elevating block 53 formed in the shape of a quadrangular column is provided with its longitudinal axis parallel to the feed direction FD. The elevating block 53 is fixed to a groove portion 52 a that is one end portion of a driven rod 52 provided below the elevating block 53 on the slightly downstream side (left side surface side) from the longitudinal center of the elevating block 53. ing. Further, a fixed block 54 is fixed to the elevating block 53 slightly upstream (right side) from the center of the elevating block 53.

  The other end side of the driven rod 52 (inside the gantry 2) is connected to a power source such as a drive cam (not shown) and slides up and down following the guide bush. Therefore, the mounting unit 40 (the front-side mounting member 41a and the back-side mounting member 41b) moves up and down through the lifting block 53 and the fixed block 54 as the driven rod 52 moves up and down.

  A motor unit 60 is provided from the upper side of the mounting unit 40 to the back side. Near the center of the motor unit 60, a split block 61 is erected upward. On the other hand, on the further back side of the motor unit 60, a motor base 62 is fixedly provided on the mount 2. The motor unit 60 is suspended and fixed by fixing the end of the support rod 63 protruding from the motor base 62 toward the front side and the split block 61.

  The lower surface of the split block 61 is fixed to the frame 64 of the motor unit 60. A geared motor 65 is fixed on the back side of the frame 64 with the rotation axis facing the front side. The power of the rotating shaft of the geared motor 65 is transmitted to the gear unit 66. On the other hand, the two rotating rods 67 a and 67 b formed in the shape of a long bar are rotatably spanned from the gear unit 66 to the front bracket 64 a of the frame 64. The end portions on the back side of the rotating rods 67 a and 67 b are connected to the gear unit 66. Therefore, the power (rotational force) of the rotating shaft of the geared motor 65 is transmitted to the two rotating rods 67a and 67b via the gear unit 66.

  Here, the two rotating rods 67a and 67b are provided at a position vertically above the follower filling V-groove on which the core 100 is placed and the follower 105 is filled. Further, a rotary piece 68 formed in a substantially cylindrical shape is fixed to the two rotary rods 67a and 67b. Two rotating pieces 68 are provided for each rotating rod (67a, 67b) (total of four in this embodiment). Further, the rotary piece 68 is provided at a position where it can come into contact with the ink tank 102 of the center core 100 placed in the follower filling V-groove at the ascending limit position of the raising / lowering operation by the second moving means 50.

  An air cylinder 69 is provided on the frame 64 at a position above the ink tank 102 of the center core 100 placed in the follower filling V groove. The piston rod of the air cylinder 69 is provided with a plate that can be brought into contact with the two cores 100 simultaneously via a connecting member or the like. The air cylinder 69 operates in accordance with the raising / lowering timing of the second moving means 50. This prevents the core 100 from sticking to the contact portion between the rotary core 68 and the core 100 made of rubber or the like due to the contact between the rotary piece 68 and the core 100. For this reason, the rod of the air cylinder 64 is actuated upward and downward to bring the aforementioned plate and the core 100 into contact.

  The operation of the air slide table 24 (control of the solenoid valve, etc.), the discharge timing of the follower 105 of the discharge unit 20, the start / stop timing of the geared motor 65, etc. are controlled by a control means (not shown) constituted by a PLC or the like. Realized.

  The positional relationship of the follower filling device 1 with respect to filling the follower 105 into the core 100 is as follows. Follower filling The follower can be filled into the center core 100 (ink tank 102) at a position where the center core 100 placed in the V-groove reaches the upper limit by the second moving means 50. In other words, the shafts of the nozzles 32a and 32b (nozzle tip portions 321a and 321b) of the discharge unit 30 and the follower-filled V-groove are placed at the ascending limit position of the core 100 placed in the follower-filled V-groove. The axial center of the center core 100 (ink tank 102) is substantially coincident.

  Here, the configuration of the core 100 of the ballpoint pen, which is a member to be filled with viscous fluid, will be described with reference to FIG. The core 100 has a ballpoint pen tip 101 at one end and an opening at the other end (open end 102a). The ink tank 102 formed in a cylindrical tubular shape and the pen tip 101 are connected by a connecting member 103. The ink tank 102 is filled with ink 104 having shear thinning viscosity (so-called gel ink), oil-based ink having reduced viscosity, water-based ink, or the like.

  A follower 105 is filled in contact with the ink 104 on the opening end 102 a side of the ink 104. The follower 105 is insoluble or highly insoluble in the ink 104, and has a performance (ink followability) capable of following the end surface of the ink 104 with respect to consumption (writing) of the ink 104. Further, even when the core 100 receives an impact such as dropping, the ink 104 has a backflow prevention property so that the ink 104 does not leak from the opening end 102a. For this reason, the follower 105 is produced by stirring two or more kinds of oily components (for example, two or more kinds of mineral oil and polybutene, room temperature liquid hydrocarbon, etc.) and various compositions, and is a known follower. is there. As a follower for a ballpoint pen, one having a consistency of about 220 to 475 at 25 ° C. is generally used, and is formed in a so-called grease shape.

  The ink tank 102 and the connection member 103 are formed of a transparent resin material such as polypropylene. Therefore, the ink 104 can be visually observed from the appearance. In general, the ink 104 has a colored and opaque appearance, and the follower 105 is formed in a transparent or colored translucent shape.

  The follower filling device 1 according to the present invention has a V groove 413a of the mounting unit 40 in a state in which the pen tip 101 and the connection member 103 are connected to the ink tank 102 and the ink 104 is filled in a previous process (not shown). , 413b, 414a, 414b. Further, after the filling of the follower is completed, the core 100 is conveyed to the next process (not shown). In the subsequent steps, a centrifugal force directed toward the pen tip 101 is applied to the core 100 (specifically, the ink 104 and the follower 105), and the air remaining inside the ink 104 and the follower 105 is removed from the opening end 102a. The process etc. discharged | emitted from the outside are processed.

  Next, the filling process of the follower 105 to the core 100 (ink tank 102) will be described with reference to FIG. 5 and FIGS.

[First step]
The cores 100 subjected to the pre-process are transported as a set of two, and the pen tip 101 side is directed to the back side in the V grooves 413a, 413b, 414a, 414b of the mounting unit 40 (in other words, the opening is opened). (With the end 102a facing the front side). The two cores 100 are placed in a follower-filled V-groove (V-grooves 415a, 415b, 416a, 416b) as a next process by a conveying means (not shown) (FIG. 5A). The center core 100 placed in the V grooves 413a and 413b is placed in the V grooves 415a and 415b, and the center core 100 placed in the V grooves 414a and 414b is placed in the V grooves 416a and 416b. . At this time, the nozzles 32a and 32b (discharge unit 30) are on standby at the movement limit (retreat limit) on the front side.
[Second step]
The placement unit 40 is raised to the ascent end position by the second moving means 50. At the ascending limit position, the axes of the nozzles 32a and 32b (nozzle tip portions 321a and 321b) and the axis of the center core 100 (ink tank 102) are substantially aligned (FIG. 5B). Note that the rotating piece 68 of the motor unit 60 comes into contact with the core 100 as the mounting unit 40 moves up to the ascending limit position.
[Third step]
The slider plate 23 of the first moving means 20 (that is, the nozzles 32a and 32b of the discharge unit 20) moves (advances) toward the back side (approach operation of the discharge unit 20 to the core 100). The guide block 24 a (that is, the nozzles 32 a and 32 b of the discharge unit 20) advances by driving the air slide table 24 from a predetermined position where the nozzles 32 a and 32 b approach the open end 102 a of the core 100. The tips of the nozzles 32a and 32b are inserted into the opening end 102a (FIG. 5C).
[Fourth step]
The forward movement of the nozzles 32a and 32b stops once, and starts moving (retracting) to the front side by driving the air slide table 24 (separating operation in which the discharge unit 20 is separated from the core 100). Simultaneously with the start of the retreat, the follower 105 is discharged from the tips of the nozzles 32a and 32b, and filling is started (FIG. 5 (d)). That is, the nozzles 32a and 32b fill (discharge) the follower 105 while retreating (FIG. 5E). At this time, a predetermined space S is provided between the follower 105 and the end face of the ink 104 facing the follower 105. This is to prevent the colored ink 104 from being mixed into the transparent or colored translucent follower 105 due to the influence of the ejection force of the follower 105 and deteriorating the appearance.
[Fifth step]
After filling the follower 105 with a predetermined amount, the backward movement of the nozzles 32a and 32b stops once. At this time, a yarn drawing phenomenon occurs in the vicinity of the nozzles 32a and 32b of the filled follower 105 (yarn drawing portion 105a). Simultaneously with the stop of the backward movement of the nozzles 32a and 32b, the geared motor 65 of the motor unit 60 is activated, and the core 100 is rotated through the gear unit 66, the rotating rods 67a and 67b, and the rotating piece 68 (FIG. 5 ( f)).
[Sixth step]
When the core 100 is rotated a predetermined number of times, the thread drawing portion 105a of the follower 105 is twisted off. After the rotation is stopped, the nozzles 32a and 32b are retracted to the retreat limit by the movement of the air slide table 24 and the slider plate 23 to the front side.

  Thus, the filling process of the follower 105 is completed, and the core 100 is conveyed to the next process.

  By making the axial centers of the nozzles 32a and 32b substantially coincide with the axial center of the core 100 in the second step, the yarn drawing portion 105a of the follower 105 to be generated later can be twisted off. In other words, there is a difference in the rotational speeds at both ends of the thread drawing portion 105a, and the rotation axes at both ends are substantially coincident, so that the yarn drawing portion 105a is twisted. When the axial center of the nozzles 32a and 32b and the axial center of the center core 100 do not coincide with each other, the thread pulling portion 105a receives a pulling force due to the rotation of the center core 100, and as a result, is torn off. As a result, the follower 105 is scattered. According to the apparatus and method of the present invention, such a problem does not occur.

  Further, in the fourth step, the follower 105 is ejected while the nozzles 32a and 32b are moved backward, so that the follower 105 is more reliably provided on the end face of the ink 104 facing the follower 105 and the follower 105. It can be discharged. Furthermore, in this embodiment according to the present invention, the nozzles 32a and 32b (ejection unit 20) advance in a section where the tips of the nozzles 32a and 32b are inserted into the ink tank 102 from the vicinity of the opening end 102a of the core 100. -The backward movement is performed by the air slide table 24. The air slide table 24 has adjusting means (specifically, a speed controller) for adjusting the speed on the air device circuit. Therefore, the moving speed of the nozzles 32a and 32b can be adjusted according to the external environment and the type of the follower 105. Therefore, an appropriate discharge position of the follower 105 can always be easily set.

  Here, the movement of the nozzles 32a and 32b (discharge unit 20) in the section from the retreat limit of the nozzles 32a and 32b (discharge unit 20) to the vicinity of the opening end 102a of the nozzles 32a and 32b is caused by the movement of the slider plate 23 by the drive cam. It is done by moving. Therefore, the movement in the section where the speed adjustment due to the external environment change or the like is not necessary (the section from the backward limit of the nozzles 32a and 32b (discharge unit 20) to the vicinity of the opening end 102a of the nozzles 32a and 32b) is appropriate in terms of production efficiency. The movement of the nozzles 32a and 32b (discharge unit 20) can be operated efficiently at a speed.

  Furthermore, as with the mounting unit 40 of the follower filling apparatus 1 according to the present invention, the discharge position of the follower 105 can be appropriately controlled by mounting the core 100 with the longitudinal direction horizontal. Furthermore, centering can be easily performed by the weight of the core 100 by supporting the core 100 with the V-groove. The present invention can also be implemented with the nib 101 side of the core 100 facing vertically downward, but in this case, it is necessary to perform centering by providing a mechanism for clamping and unclamping the core 100 separately. Further, the discharged follower 105 may come into contact with the ink 104 under its own weight depending on the type.

  Further, since the rotary core 68 of the motor unit 60 is in contact with the core 100 and the core 100 is rotated, the structure of the motor unit 60 can be simplified.

  As mentioned above, although the Example of this invention was described in detail, this invention is not limited to this, In the range which does not change the summary of this invention, it can change suitably.

For example, the steps after the third step can be changed as follows.
[Third step]
The first moving means 20 moves (advances) the nozzles 32 a and 32 b to the back side, and inserts the nozzles 32 a and 32 b from the open end 102 a of the core 100.
[4th step]
The nozzles 32a and 32b are moved forward by a predetermined amount and then stopped, and the follower 105 is discharged (filled) from the nozzles 32a and 32b.
[5th step]
After filling the follower 105 with a predetermined amount, the geared motor 65 of the motor unit 60 is activated to rotate the core 100 a predetermined number of times. Thereby, the yarn drawing portion 105a of the follower 105 is twisted off.
[Step 6 ']
After the rotation is stopped, the nozzles 32a and 32b are retracted by the first moving means 20 to the retreat limit.

  The third to sixth steps can be performed depending on the type of the follower 105 and the discharge amount. According to the third to sixth steps, it is possible to reduce the man-hours for the follower filling step of the core 100 or increase the production quantity per unit time. However, since it is usually necessary to control the filling position of the follower 105 (distance to the ink 104, etc.), the above-described embodiment (third to sixth steps) is preferable for the center of the ballpoint pen.

  The rotation of the core 100 by the motor unit 60 is one-way rotation in the present embodiment, but is not limited to this, and may be, for example, a rotation operation that rotates forward and backward at an arbitrary rotation angle. This can also be appropriately selected depending on the type (nature) of the follower 105.

  Further, the speed adjustment of the movement of the discharge unit 20 by the air slide table 24 only needs to be adjustable only when “retreat while discharging the follower 105”.

  Further, each moved device / part may be a relative movement, and is not limited to the present embodiment. For example, the rotation of the center core 100 when twisting the thread drawing portion may rotate the nozzles 32a and 32b. Further, both may be rotated in reverse or at different rotational speeds. That is, if there is a relative phase difference, the yarn drawing portion 105a can be twisted.

  Similarly, the movement of the discharge unit 30 with respect to the center core 100 and the movement of the center core 100 (mounting unit 40) with respect to the motor unit 60 may be relatively approached and separated.

  The power source used for the movement of each part is not limited to the present embodiment, and for example, a servo motor or a hydraulic device may be used.

  Furthermore, the apparatus and method according to the present invention do not need to limit the member to be filled to the center of the ballpoint pen, and are appropriately applied to the apparatus and method for filling a grease-like viscous fluid to the member to be filled formed in a tubular shape. Can be applied. In particular, the present invention can be preferably applied and implemented when it is necessary to control the discharge position of the viscous viscous fluid, for example, because a different kind of fluid has already been filled.

1 follower filling equipment
20 First moving means 21 Base 22 Guide rail 23 Slider plate 24 Air slide table 24a Guide block 30 Discharge unit 31a, 31b Metering valve 32a, 32b Nozzle 311a, 311b Discharge amount adjusting screw 312a, 312b Cylinder block 321a, 321b Nozzle tip Unit 40 mounting unit 41a front side mounting member 41b back side mounting member 411a base end part 411b base end part 412a beam-like part 412b1 block-like part 412b2 plate-like part 413a, 414a, 415a, 416a V-groove 413b, 414b, 415b, 416b V-groove 417 Support roller 50 Second moving means 51 Guide means 51a Cylindrical part 51b Flange part 51c Guide bush 52 Followed rod 52a Groove part 53 Elevating block 54 Fixed block 541a 541b Groove 60 Motor unit 61 Block 62 Motor base 63 Support rod 64 Frame 64a Front side bracket 65 Geared motor 66 Gear unit 67a Rotating rod 67b Rotating rod 68 Rotating piece 69 Air cylinder 100 Core 101 Pen tip 102 Ink tank 102a Open end 103 Connection member 104 Ink 105 Follower 105a Threading portion

Claims (11)

A viscous fluid in which a ballpoint pen tip is fixed at one end and the other end is opened and filled with a grease-like follower that prevents backflow of ink in the center of the ballpoint pen already filled with ink. In the filling device of
A discharge unit formed such that the follower can be discharged from a nozzle;
Said wick formed in the tubular, the placement unit, which is rotatably mounted about the axis of the wick,
First moving means for approaching and separating the nozzle of the discharge unit and the core ;
A motor unit having a motor for applying a rotational force around the axis of the core to the core ;
Have a, a second moving means for moving the wick and the discharge unit so as to substantially coincide the axis of the shaft center and the center-core nozzle of the discharge unit,
The viscous fluid filling apparatus , wherein the discharge unit discharges the follower so as to ensure a space between the follower and a rear end surface of the ink in the core . 2. The viscous fluid filling apparatus according to claim 1, wherein the space is secured by discharging the follower while retracting the nozzle . 3. The viscous fluid filling device according to claim 1 , wherein the placing unit has a V-groove so that the core is placed with its longitudinal direction horizontal . The motor unit includes a rotating piece connected to a rotating shaft of the motor, and the rotating core contacts the core from above the V-groove, whereby the core is rotated. The viscous fluid filling apparatus according to claim 3 . The first moving means includes an adjusting means capable of adjusting a relative speed in an approaching / separating operation between the discharge unit and the core.
The adjusting means is formed so as to be able to adjust a relative speed at a position where both of the discharge unit and the core move by the first moving means are close to each other. 5. The viscous fluid filling apparatus according to any one of 1 to 4 . The viscous fluid filling device according to any one of claims 1 to 5, wherein the follower discharged from the nozzle of the discharge unit has a consistency of 220 to 475 at 25 ° C. Viscosity was as previously inks is opened and the other end ballpoint pen tip is fixed to one end to center core of a ballpoint pen is filled, filling the grease-like follower to prevent backflow of the ink in the intermediate core In the fluid filling method,
A step of inserting the nozzle for discharging the follower with the axial centers thereof substantially matched with respect to the core formed in a tubular shape;
Discharging a predetermined amount of the follower from the nozzle so as to ensure a space between the follower and the rear end surface of the ink in the core;
Relatively rotating the nozzle and the core around an axis;
A viscous fluid filling method characterized by comprising: 8. The viscous fluid filling method according to claim 7, wherein the space is secured by discharging the follower while retracting the nozzle . A viscous fluid in which a ballpoint pen tip is fixed at one end and the other end is opened and filled with a grease-like follower that prevents backflow of ink in the center of the ballpoint pen already filled with ink. In the filling method of
A step of inserting the nozzle for discharging the follower with the axial centers thereof substantially matched with respect to the core formed in a tubular shape;
The follower and so as to ensure a space between the rear end surface of the ink in said inner core, is moved to relatively away and said wick and said nozzle along the axis, from the nozzle Discharging the follower ;
Stopping the discharge of the follower from the nozzle and stopping the movement of the nozzle and the core that are relatively separated from each other;
Relatively rotating the nozzle and the core around an axis;
A viscous fluid filling method characterized by comprising: Filling method according to claim 9, wherein the viscous fluid, characterized by the step of relatively rotating the wick and the nozzle by rotating the wick around the axis. 11. The viscous fluid filling method according to claim 7 , wherein the follower discharged from the nozzle has a consistency of 220 to 475 at 25 ° C. 11.

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