EP1457449A2 - Cone type bobbin supplying device - Google Patents
Cone type bobbin supplying device Download PDFInfo
- Publication number
- EP1457449A2 EP1457449A2 EP04001008A EP04001008A EP1457449A2 EP 1457449 A2 EP1457449 A2 EP 1457449A2 EP 04001008 A EP04001008 A EP 04001008A EP 04001008 A EP04001008 A EP 04001008A EP 1457449 A2 EP1457449 A2 EP 1457449A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- bobbin
- cone type
- aggregate
- separating member
- round bar
- Prior art date
- Legal status (The legal status 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 status listed.)
- Withdrawn
Links
- 239000011148 porous material Substances 0.000 claims abstract description 29
- 238000004804 winding Methods 0.000 claims abstract description 10
- 239000011800 void material Substances 0.000 claims description 12
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 230000000630 rising effect Effects 0.000 claims description 5
- 230000002411 adverse Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
- B65H67/06—Supplying cores, receptacles, or packages to, or transporting from, winding or depositing stations
- B65H67/067—Removing full or empty bobbins from a container or a stack
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/31—Textiles threads or artificial strands of filaments
Definitions
- the present invention relates to a cone type bobbin supplying device that automatically supplies cone type bobbins to a yarn winding device.
- Cone type (truncated-cone-shaped) bobbins have hitherto been commonly employed as winding bobbins for yarns. These bobbins are hollow so as to be installed over a bobbin holding portion of a winding device and to reduce their weights.
- the cone type bobbin is commonly formed by rolling up a cylinder of cardboard.
- the head portion of the cone type bobbin has a double structure formed by bending a small-diameter head side end of the bobbin inward.
- an aggregate in which a plurality of such cone type bobbins are laminated is shaped so that the small-diameter head portion of one bobbin is fitted into a large-diameter pore portion of another which is opposite the small-diameter head portion.
- the device mechanically performing a separating operation as described in the above publication is configured to separate one bobbin from an aggregate by abutting a finger member against a step present at the end of the laminated bobbins.
- a portion of the aggregate against which the finger member is abutted and rubbed may be damaged, or the bobbins may be deformed.
- the bobbins may be more severely damaged or deformed.
- an aspect of the present invention set forth in Claim 1 provides a cone type bobbin supplying device that supplies a cone type bobbin to a yarn winding device by separating the cone type bobbin from a bobbin aggregate in which a plurality of cone type bobbins are laminated by fitting one bobbin into another, the cone type bobbin supplying device being characterized by comprising a separating member that grips an arbitrary bobbin from the bobbin aggregate and which jets compressed air into a void portion formed between the gripped arbitrary bobbin and another bobbin joined to the arbitrary bobbin by an inner and outer peripheral surfaces of the arbitrary bobbin and the above mentioned another bobbin, respectively, to separate the another bobbin.
- a predetermined cone type bobbin can be separated from the cone type bobbin aggregate while minimizing the adverse effect on the surface shape of the bobbins.
- the separating member comprises a round bar portion having a diameter slightly smaller than a pore size of a small-diameter head side of the laminated bobbins, and the round bar portion has a sufficient length to be inserted from the small-diameter head side of the another bobbin until the round bar portion penetrates at least the small-diameter head side of the arbitrary bobbin, and comprises air jet pores formed on a circumference of the round bar portion and from which air is jetted outward in a radial direction.
- the void portion is substantially closed by inserting the separating member into the portion in which the cone type bobbins are laminated and allowing the round bar portion to penetrate the laminated portion. Then, jetting compressed air causes the compressed air to be filled between the arbitrary bobbin and the above mentioned another bobbin. Consequently, the compressed air can be used for a bobbin separating operation without any losses.
- An aspect of the present invention set forth in Claim 3 is characterized in that the separating member comprises a second separating member that separates the round bar portion from the small-diameter head portion while holding the separated bobbin, to remove the separated bobbin from the separating member.
- the separating member supports and guides the core type bobbin separated from the aggregate by jetting the compressed air.
- the bobbin can thus be reliably supplied to the winding device.
- An aspect of the present invention set forth in Claim 4 is characterized by further comprising a stand on which the bobbin aggregate can be installed, a driving device that drives the stand so that the installed bobbin aggregate rises vertically, a cradle that holds a bobbin that drops off from the vertically rising bobbin aggregate by the first separating member, and a driving device that changes the direction of the bobbin held on the cradle and of the round bar portion so that the bobbin and the round bar portion extend in a horizontal direction, and in that the second separating member separates the horizontally extending round bar portion from the small-diameter head portion to remove the separated bobbin from the first separating member.
- An aspect of the present invention set forth in Claim 5 is characterized in that the second separating member comprises a receiving guide on which the bobbin separated from the first separating member can be placed and which can be pivoted in a direction in which the small-diameter head portion of the placed bobbin is separated from the round bar portion, and the cone type bobbin supplying device is provided with a separating wall portion that interferes with the bobbin placed on the receiving guide when the receiving guide is pivoted, to separate the bobbin from the receiving guide.
- An aspect of the present invention set forth in Claim 6 is characterized in that the separating member comprises sensing means for detecting a separated cone type bobbin, and the cone type bobbin supplying device is provided with an air jet control section that operates when the bobbin is not detected after compressed air has been jetted, to jet compressed air again.
- An aspect of the present invention set forth in Claim 7 is characterized by further comprising a stand on which the bobbin aggregate can be installed and a driving device that drives the stand so that the installed bobbin aggregate rises vertically, and in that the sensing means comprises a switch member arranged so that a button is pushed by a load of a bobbin that is dropped off from the vertically rising bobbin aggregate by the first separating member.
- Figure 5 shows that cone type bobbins 11, 12 are laminated by fitting the bobbin 12 into the bobbin 11.
- the bobbin 11 comprises a small-diameter head portion 11A and a large-diameter bottom portion 11B, and a small-diameter head portion 12A of the bobbin 12 is fitted into the large-diameter bottom portion 11B so as to be inserted into it.
- a void portion 11C is formed by the inner peripheral surface of the bobbin 11 and the outer peripheral surface of the bobbin 12 between the small-diameter head portion 11A and the small-diameter head portion 12A.
- a plurality of bobbins are further laminated in this manner to form an elongate bobbin aggregate 10.
- the bobbins 11, 12 are, for example, of a tapered cone type and are made of cardboard.
- the outer surfaces of the bobbins have the same taper angle. Accordingly, when the bobbins are laminated by fitting one bobbin into the other, they are firmly joined to each other and cannot be easily separated from each other. In the prior art, when bobbins are separated from each other manually or using any mechanical arm means, in many cases, the bobbins are individually held and one of them is separated from the other so as to be twisted.
- the separating member 1 has a round bar portion 1A having a diameter slightly smaller than that of a pore 11a in the small-diameter head portion 11A of the bobbin 11.
- the separating member 1 is cylindrical and can move forward and backward.
- An air supply passage 1C is disposed inside the separating member 1. Compressed air is jetted from the circumference of the round bar portion 1A outward in a radial direction, through one or more air jetting pores 1B formed in an intermediate portion of the round bar portion 1A.
- a supply valve 21 By switching a supply valve 21, it is possible to supply compressed air from a compressed air source (not shown in the drawings) to the air supply passage 1C via an air pipe 1F connected to an air joint 1E. And a switching control of the supply valve 21 is done by the air jet control section 20B of the separating member control section 20.
- the bobbin aggregate 10 is shaped like an elongate cylinder and is formed by sequentially laminating a plurality of cone type bobbins in such a way that the small-diameter head portion of one bobbin is fitted into the large-diameter bottom portion of another bobbin.
- a cone type bobbin supplying device M generally shown in Figure 3, operates to separate the cone type bobbins from the elongate bobbin aggregate one by one to supply them to a predetermined yarn winding device (not shown in the drawings).
- the leading end side of the bobbin aggregate 10 is assumed to be the small-diameter head side of the bobbins, the leading bobbin (another bobbin jointed to an arbitrary bobbin) 11 is separated from the second (arbitrary) bobbin 12.
- the bobbin 11 is then supplied to a conveyor 6, shown in Figure 3.
- the small-diameter head portion 11A of the leading (lowermost) bobbin 11, which is supporting the bobbin aggregate 10 extends downward and abuts against a stopper 2.
- a clamp 3 grips the large-diameter bottom portion 12B of the second bobbin 12, which is sticking out of the large-diameter bottom portion 11B in the bobbin 11.
- the bobbin aggregate 10 extends in a vertical direction.
- the stopper 2 is pivoted. Since the bobbin aggregate 10 is gripped by the clamp 3 and each of the bobbins 11, 12, 13, ... is firmly fitted into another, the lowermost bobbin 11 does not drop off. Subsequently, the separating member 1 is elevated to insert the round bar portion 1A into a pore in the small-diameter head side of the bobbin 11. Compressed air is then jetted to separate the bobbin 11 from the bobbin 12, i.e. the bobbin aggregate 10.
- the air jetting pores 1B are positioned in a void portion 11C between the small-diameter head portion 11A of the bobbin 11 and the small-diameter head portion 12A of the bobbin 12.
- a cradle 1D is not in contact with the small-diameter head portion 11A.
- the air jetting pores 1B branch from the air supply passage 1C near the intermediate portion of the round bar portion 1A so as to extent outward in the radial direction, the air supply passage being disposed along the central axis of the round bar portion 1A.
- the plurality of air jetting pores 1B are formed on the circumference at equal intervals.
- the number, interval, and pore size of the air jetting pores 1B may be properly selected taking into account the pressure of the supplied compressed air, the force required to separate the bobbin, and the like.
- the outer diameter of the round bar portion 1A is formed to be slightly smaller than that of the pore 11a in the small-diameter head portion 11A of the bobbin 11.
- the round bar portion 1A can thus move forward and backward through the pore 11a. By allowing the round bar portion 1A to penetrate the pore 11a, it is possible to substantially close the void portion 11C to prevent jetted air from leaking. The air can thus be effectively utilized.
- the round bar portion 1A stops after having advanced to the position where it has passed completely through the pore 11a in the small-diameter head portion 11A of the bobbin 11 and the pore 12a in the small-diameter head portion 12A of the bobbin 12.
- the cradle 1D is not in contact with the small-diameter head portion 11A of the bobbin 11, with a space portion present between them.
- the small-diameter head portion 11A abuts against the cradle 1D.
- the air jetting pores 1B are positioned in a substantially central portion of the void portion 11C between the small-diameter head portion 11A of the bobbin 11 and the small-diameter head portion 12A of the bobbin 12.
- the bobbin 11 is abutted against the stopper 2 so that its small-diameter head portion 11A faces downward.
- the bobbin aggregate 10, in which the large number of bobbins 11, 12, ... are laminated so that one bobbin is fitted into another, is thus placed on the stopper 2.
- the clamp 3 is driven to grip the large-diameter bottom portion 12B of the second bobbin 12.
- the stopper 2 is pivoted to elevate the separating member 1 as shown in Figure 2(C). Once the separating member 1 is elevated by a predetermined amount, the air jetting pores 1B are positioned in the void portion 11C.
- the cradle 1D stops at a predetermined distance from the small-diameter head portion 11A. Then, when compressed air is jetted, the lowermost bobbin 11 is separated from the bobbin aggregate 10 and drops off as shown in Figure 2(D). The small-diameter head portion 11A is abutted against and placed on the cradle 1D. In this state, when the separating member 1 is lowered, it moves with the bobbin 11 placed on the cradle 1D.
- a pivotal driving device 8 rotates the stand 7 counterclockwise as shown in the figures.
- the bobbin aggregate 10 is thus stood up straight as shown by the alternate long and two short dashes line.
- the stopper 2 is standing by at a predetermined position to receive the lowermost bobbin 11 of the vertically rising bobbin aggregate 10.
- the clamp 3 is driven to cause the large-diameter bottom portion 12B of the second lowest bobbin 12 to be gripped. While the clamp 3 is being driven, even when the stopper 2 is pivoted from its predetermined position, the lowermost bobbin 11 does not drop off from the bobbin aggregate 10. The clamp 3 firmly grips the whole bobbin aggregate 10.
- a large space portion is formed at the bottom of the bobbin 11.
- the separating member 1 is disposed in the space portion so as to elevate and lower freely. Then, a predetermined control signal is used to drive the separating member 1 to separate the bobbins from the aggregate one by one. The separated bobbin is then supplied to a conveying passage 6.
- the separating member 1 is drivingly elevated and lowered by a driving device 4 via a mounting member 1G.
- the separating member 1 can also be rotatively moved around a support shaft 4a by a pivotal driving device 4A.
- the separating member 1 After the separating member 1 has separated and placed the bobbin 11 on the cradle 1D and has subsequently lowered, it is pivoted so as to change its direction to a horizontal one as shown in Figure 4. Then, the separated bobbin 11 is placed on and delivered to a receiving guide 5 the top of which is open so that the separating member 1 can supply the bobbin 11 to the receiving guide 5 through its top, the bottom of the receiving guide 5 being formed substantially like a cylinder. Subsequently, the cylinder 5A is driven to pivot the receiving guide 5 to separate the bobbin 11 from the round bar portion 1A.
- the large-diameter bottom portion 11B collides against a separating wall portion 5B arranged at the position where it does not interfere with the receiving guide 5 but only with the bobbin 11 placed on the receiving guide 5. Accordingly, the bobbin 11 is separated from the pivoting receiving guide 5 and drops onto an inclined surface 9. The bobbin 11 is then rolled and guided along the inclined surface 9 to the conveying passage 6.
- the round bar portion 1A has a diameter slightly smaller than that of the pore 11a in the small-diameter head portion 11A of the bobbin 11.
- a certain external force is preferably exerted in order to reliably separate the bobbin 11 from the separating member 1 utilizing the friction between them.
- the receiving guide 5 is provided as a second separating member to separate the bobbin 11 from the round bar portion 1A. After the pivoting separating member 1 has delivered the bobbin 11 to the receiving guide 5, when the receiving guide 5 starts pivoting, it applies a force acting in the direction in which the bobbin 11 is pulled out of the round bar portion 1A. Further pivoting of the receiving guide 5 completely separates the bobbin 11 from the round bar portion 1A to remove the bobbin 11 from the separating member 1.
- An air cylinder is employed as the driving device 4, and a rack and pinion is employed as the pivotal driving device 4A.
- the driving source is not specifically limited. Other driving device may be used.
- the bobbin 11 is separated from the aggregate by the separating member 1 and then guided to the conveying passage 6.
- the step executed after the bobbin 11 has been separated from the aggregate by the separating member 1 is not specifically limited.
- sensing means for sensing a bobbin includes a sensor S1 that senses a bobbin 13 located immediately above the cone type bobbin 12 gripped by the clamp 3 and a sensor S2 that senses the bobbin 11 separated from the aggregate and abutted against the cradle 1D.
- the senor S2 is composed of a detecting tip portion S2a that can be rotatively moved up and down by the load of the dropping bobbin 11 and a switch member arranged so that a button is positioned near the rotative moving center of the detecting tip portion S2a.
- the detecting tip portion S2a is pushed downward and rotatively moved to push the button.
- the switch member then converts this change into an electric signal.
- a separation state determining section 20A of a (separating member) control section 20 determines whether or not the separating member 1 has successfully separated the bobbin 11 from the bobbin aggregate 10.
- the sensor S1 executes detection as to whether or not any bobbin remains in the bobbin aggregate 10 supplied by the stand 7. If any bobbin remains, an elevating and lowering control section 20C of the control section 20 elevates the separating member 1 to insert the round bar portion 1A through the pore 11a in the small-diameter head portion 11A of the bobbin 11. An air jet control section 20B then controllably opens the supply valve 21 to jet compressed air. If this single jetting operation succeeds in separating the bobbin 11 from the bobbin aggregate 10, the bobbin 11 drops onto the cradle 1D. When the sensor S2 detects the dropping bobbin 11, the separating member control section 20 continuously performs the subsequent transfer operation (the operation of lowering and pivoting the separating member 1).
- the determining section 20A determines that the bobbin 11 has not been separated from the bobbin aggregate 10. On the basis of this determination, the air jet control section 20B controllably opens the supply valve again to jet compressed air again.
- a program is provided which the device to execute the above process.
- the device may be configured so that this fact may be displayed or that a next new bobbin aggregate 10 is supplied.
- the switch member comprising the button is employed as the sensor S2.
- the type of the sensor is not specifically limited. It is allowable to provide a photoelectric sensor that directly optically senses the bobbin 11 or to mount a pressure sensor that detects the load of the bobbin 11 on the cradle 1D provided that the sensor can sense the presence of the bobbin 11 on the cradle 1D. This also applies to the sensor S1.
- the first bobbin 11 is separated from the bobbin aggregate 10 by jetting compressed air into the void portion 11C between the first bobbin 11 and the second bobbin 12 through the end of the laminated bobbins, while gripping the second bobbin 12 from the end of the bobbin aggregate 10.
- the present invention is not limited to this aspect.
- the sensor S2 fails to detect a bobbin and that it is determined that the first bobbin 11 has not been separated from the bobbin aggregate 10.
- the round bar portion 1A may be elevated by one pitch, i.e. by an amount equal to one bobbin.
- Compressed air may then be jetted into the void portion between the second bobbin and the third bobbin to separate, from the original bobbin aggregate, a sub-aggregate composed of the two bobbins including the first and second bobbins.
- the sub-aggregate may then be conveyed to an area different from the normal one.
- the round bar portion 1A is inserted from the small-diameter head portion 11A side of the bobbin 11.
- bobbins from the stand 7 may be supplied in the opposite direction so that the round bar portion 1A can be inserted from the large-diameter bottom portions of the bobbins to abut the large-diameter bottom portion 11b against the cradle 1D.
- the cone type bobbin supplying device can reliably separate the bobbins from the bobbin aggregate while minimizing the adverse effect on the surface shape of the bobbins resulting from excessive rubbing of the separating member 1 against the surface of the bobbins.
- a cone type bobbin can be surely separated from a bobbin aggregate in which a plurality of bobbins are laminated, while minimizing the adverse effect on the surface shape of the bobbin, simply by inserting a separating member with air jetting pores into the bobbin aggregate and jetting compressed air into a void position formed between a gripped arbitrary bobbin and another bobbin joined to the arbitrary bobbin by an inner and outer peripheral surfaces of the arbitrary bobbin and the above mentioned another bobbin, respectively.
Landscapes
- Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
- Feeding Of Articles To Conveyors (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Abstract
The present invention provides a cone type bobbin supplying device that can
separate one cone type bobbin from a bobbin aggregate 10 in which a plurality
of cone type bobbins are laminated so that one bobbin is fitted into another,
the cone type bobbin supplying device enabling the separated cone type bobbin
to be reliably conveyed. A cone type bobbin supplying device supplies cone
type bobbins 11, 12, 13... to a yarn winding device by separating one cone type
bobbin from a bobbin aggregate in which a plurality of cone type bobbins are
laminated so that one bobbin is fitted into another. A separating member 1
includes a round bar portion 1A having a diameter slightly smaller than the pore
size of a small-diameter head side of each of the laminated cone type bobbins
and a cradle 1D that receives the small-diameter head portion 11A of the
separated bobbin. The round bar portion of the separating member is inserted
into the bobbin aggregate from the small-diameter head side of the cone type
bobbins so that the round bar portions will not contact with the cradle.
Furthermore, compressed air is jetted from a plurality of air jetting pores
formed in the round bar portion (Fig. 1).
Description
The present invention relates to a cone type bobbin supplying device that
automatically supplies cone type bobbins to a yarn winding device.
Cone type (truncated-cone-shaped) bobbins have hitherto been commonly
employed as winding bobbins for yarns. These bobbins are hollow so as to be
installed over a bobbin holding portion of a winding device and to reduce their
weights. The cone type bobbin is commonly formed by rolling up a cylinder of
cardboard.
Furthermore, to maintain the strength of the conical shape, the head
portion of the cone type bobbin has a double structure formed by bending a
small-diameter head side end of the bobbin inward. Thus, an aggregate in which
a plurality of such cone type bobbins are laminated is shaped so that the
small-diameter head portion of one bobbin is fitted into a large-diameter pore
portion of another which is opposite the small-diameter head portion.
In the prior art, when one bobbin is separated from the aggregate, the
outside of the uppermost bobbin (located at the end of the aggregate) is gripped
and separated from the aggregate so as to be twisted. Alternatively, a finger
is stuck into a small-diameter head side pore portion in the uppermost bobbin to
separate the bobbin from the aggregate in such a way that the double structure
head portion is pulled.
An automatic device has been laid open which mechanically separates one
bobbin from a bobbin aggregate (for example, the Unexamined Japanese Patent
Application Publication (Tokkai-Sho) 61-186535 (pp. 1 to 13, Figure 6B).
However, a large force is required to separate a truncated-cone-shaped cone
type bobbin from an aggregate in which such bobbins are laminated. Thus, in
terms of working efficiency, it is unfavorable to manually perform a bobbin
separating operation.
Furthermore, the device mechanically performing a separating operation as
described in the above publication is configured to separate one bobbin from an
aggregate by abutting a finger member against a step present at the end of the
laminated bobbins. Thus, disadvantageously, a portion of the aggregate against
which the finger member is abutted and rubbed may be damaged, or the bobbins may
be deformed. In particular, when a bobbin separating operation is performed at
a high speed, the bobbins may be more severely damaged or deformed.
It is an object of the present invention to provide a cone type bobbin
supplying device that can easily separate a cone type bobbin from a bobbin
aggregate in which a plurality of cone type bobbins are laminated so that one
bobbin is fitted into another, the cone type bobbin supplying device enabling
the reduction of the adverse effect on the surface shape of the cone type
bobbin.
To accomplish this object, an aspect of the present invention set forth in
Claim 1 provides a cone type bobbin supplying device that supplies a cone type
bobbin to a yarn winding device by separating the cone type bobbin from a
bobbin aggregate in which a plurality of cone type bobbins are laminated by
fitting one bobbin into another, the cone type bobbin supplying device being
characterized by comprising a separating member that grips an arbitrary bobbin
from the bobbin aggregate and which jets compressed air into a void portion
formed between the gripped arbitrary bobbin and another bobbin joined to the
arbitrary bobbin by an inner and outer peripheral surfaces of the arbitrary
bobbin and the above mentioned another bobbin, respectively, to separate the
another bobbin.
According to the aspect of the present invention set forth in Claim 1 and
having the above configuration, a predetermined cone type bobbin can be
separated from the cone type bobbin aggregate while minimizing the adverse
effect on the surface shape of the bobbins.
An aspect of the present invention set forth in Claim 2 is characterized in
that the separating member comprises a round bar portion having a diameter
slightly smaller than a pore size of a small-diameter head side of the laminated
bobbins, and the round bar portion has a sufficient length to be inserted from
the small-diameter head side of the another bobbin until the round bar portion
penetrates at least the small-diameter head side of the arbitrary bobbin, and
comprises air jet pores formed on a circumference of the round bar portion and
from which air is jetted outward in a radial direction.
According to the aspect of the present invention set forth in Claim 2 and
having the above configuration, the void portion is substantially closed by
inserting the separating member into the portion in which the cone type bobbins
are laminated and allowing the round bar portion to penetrate the laminated
portion. Then, jetting compressed air causes the compressed air to be filled
between the arbitrary bobbin and the above mentioned another bobbin.
Consequently, the compressed air can be used for a bobbin separating operation
without any losses.
An aspect of the present invention set forth in Claim 3 is characterized in
that the separating member comprises a second separating member that separates
the round bar portion from the small-diameter head portion while holding the
separated bobbin, to remove the separated bobbin from the separating member.
According to the aspect of the present invention set forth in Claim 3 and
having the above configuration, the separating member supports and guides the
core type bobbin separated from the aggregate by jetting the compressed air.
The bobbin can thus be reliably supplied to the winding device.
An aspect of the present invention set forth in Claim 4 is characterized by
further comprising a stand on which the bobbin aggregate can be installed, a
driving device that drives the stand so that the installed bobbin aggregate
rises vertically, a cradle that holds a bobbin that drops off from the
vertically rising bobbin aggregate by the first separating member, and a
driving device that changes the direction of the bobbin held on the cradle and
of the round bar portion so that the bobbin and the round bar portion extend in
a horizontal direction, and in that the second separating member separates the
horizontally extending round bar portion from the small-diameter head portion to
remove the separated bobbin from the first separating member.
An aspect of the present invention set forth in Claim 5 is characterized in
that the second separating member comprises a receiving guide on which the
bobbin separated from the first separating member can be placed and which can
be pivoted in a direction in which the small-diameter head portion of the
placed bobbin is separated from the round bar portion, and the cone type bobbin
supplying device is provided with a separating wall portion that interferes
with the bobbin placed on the receiving guide when the receiving guide is
pivoted, to separate the bobbin from the receiving guide.
An aspect of the present invention set forth in Claim 6 is characterized in
that the separating member comprises sensing means for detecting a separated
cone type bobbin, and the cone type bobbin supplying device is provided with an
air jet control section that operates when the bobbin is not detected after
compressed air has been jetted, to jet compressed air again.
According to the aspect of the present invention set forth in Claim 6 and
having the above configuration, if the cone type bobbin cannot be separated by
a single operation of jetting compressed air, compressed air is jetted again.
This eliminates the need for an operator's maintenance, while enabling the
bobbins to be surely supplied to the winding device.
An aspect of the present invention set forth in Claim 7 is characterized by
further comprising a stand on which the bobbin aggregate can be installed and a
driving device that drives the stand so that the installed bobbin aggregate
rises vertically, and in that the sensing means comprises a switch member
arranged so that a button is pushed by a load of a bobbin that is dropped off
from the vertically rising bobbin aggregate by the first separating member.
With reference to Figures 1 to 5, description will be given of an
embodiment of a cone type bobbin supplying device according to the present
invention.
Figure 5 shows that cone type bobbins 11, 12 are laminated by fitting the
bobbin 12 into the bobbin 11. The bobbin 11 comprises a small-diameter head
portion 11A and a large-diameter bottom portion 11B, and a small-diameter head
portion 12A of the bobbin 12 is fitted into the large-diameter bottom portion
11B so as to be inserted into it. In this case, a void portion 11C is formed
by the inner peripheral surface of the bobbin 11 and the outer peripheral
surface of the bobbin 12 between the small-diameter head portion 11A and the
small-diameter head portion 12A. A plurality of bobbins are further laminated
in this manner to form an elongate bobbin aggregate 10.
The bobbins 11, 12 are, for example, of a tapered cone type and are made of
cardboard. The outer surfaces of the bobbins have the same taper angle.
Accordingly, when the bobbins are laminated by fitting one bobbin into the
other, they are firmly joined to each other and cannot be easily separated from
each other. In the prior art, when bobbins are separated from each other
manually or using any mechanical arm means, in many cases, the bobbins are
individually held and one of them is separated from the other so as to be
twisted.
With reference to Figure 1, a description will be given of a separating
member 1 for cone type bobbins according to the present invention.
The separating member 1 has a round bar portion 1A having a diameter
slightly smaller than that of a pore 11a in the small-diameter head portion 11A
of the bobbin 11. The separating member 1 is cylindrical and can move forward
and backward. An air supply passage 1C is disposed inside the separating
member 1. Compressed air is jetted from the circumference of the round bar
portion 1A outward in a radial direction, through one or more air jetting pores
1B formed in an intermediate portion of the round bar portion 1A. By switching
a supply valve 21, it is possible to supply compressed air from a compressed
air source (not shown in the drawings) to the air supply passage 1C via an air
pipe 1F connected to an air joint 1E. And a switching control of the supply
valve 21 is done by the air jet control section 20B of the separating member
control section 20.
The bobbin aggregate 10 is shaped like an elongate cylinder and is formed
by sequentially laminating a plurality of cone type bobbins in such a way that
the small-diameter head portion of one bobbin is fitted into the large-diameter
bottom portion of another bobbin. Thus, a cone type bobbin supplying device M,
generally shown in Figure 3, operates to separate the cone type bobbins from the
elongate bobbin aggregate one by one to supply them to a predetermined yarn
winding device (not shown in the drawings).
Specifically, if the leading end side of the bobbin aggregate 10 is assumed
to be the small-diameter head side of the bobbins, the leading bobbin (another
bobbin jointed to an arbitrary bobbin) 11 is separated from the second
(arbitrary) bobbin 12. The bobbin 11 is then supplied to a conveyor 6, shown
in Figure 3. At this time, the small-diameter head portion 11A of the leading
(lowermost) bobbin 11, which is supporting the bobbin aggregate 10, extends
downward and abuts against a stopper 2. And a clamp 3 grips the large-diameter
bottom portion 12B of the second bobbin 12, which is sticking out of the large-diameter
bottom portion 11B in the bobbin 11. In this state, the bobbin
aggregate 10 extends in a vertical direction.
In this state, the stopper 2 is pivoted. Since the bobbin aggregate 10 is
gripped by the clamp 3 and each of the bobbins 11, 12, 13, ... is firmly fitted
into another, the lowermost bobbin 11 does not drop off. Subsequently, the
separating member 1 is elevated to insert the round bar portion 1A into a pore
in the small-diameter head side of the bobbin 11. Compressed air is then
jetted to separate the bobbin 11 from the bobbin 12, i.e. the bobbin aggregate
10.
After the separating member 1 has been elevated to insert the round bar
portion 1A into the bobbin aggregate 10 so that the round bar portion 1A
penetrates the pore 11a in the small-diameter head portion 11A of the bobbin 11
and a pore 12a in the bobbin 12, the air jetting pores 1B are positioned in a
void portion 11C between the small-diameter head portion 11A of the bobbin 11
and the small-diameter head portion 12A of the bobbin 12. Thus, a cradle 1D is
not in contact with the small-diameter head portion 11A.
The air jetting pores 1B branch from the air supply passage 1C near the
intermediate portion of the round bar portion 1A so as to extent outward in the
radial direction, the air supply passage being disposed along the central axis
of the round bar portion 1A. In the present embodiment, the plurality of air
jetting pores 1B are formed on the circumference at equal intervals. The
number, interval, and pore size of the air jetting pores 1B may be properly
selected taking into account the pressure of the supplied compressed air, the
force required to separate the bobbin, and the like. The outer diameter of the
round bar portion 1A is formed to be slightly smaller than that of the pore 11a
in the small-diameter head portion 11A of the bobbin 11. The round bar portion
1A can thus move forward and backward through the pore 11a. By allowing the
round bar portion 1A to penetrate the pore 11a, it is possible to substantially
close the void portion 11C to prevent jetted air from leaking. The air can
thus be effectively utilized.
When the separating member 1 is inserted into the bobbin aggregate 10, the
round bar portion 1A stops after having advanced to the position where it has
passed completely through the pore 11a in the small-diameter head portion 11A of
the bobbin 11 and the pore 12a in the small-diameter head portion 12A of the
bobbin 12. At this time, the cradle 1D is not in contact with the small-diameter
head portion 11A of the bobbin 11, with a space portion present
between them. Then, when the bobbin 11 drops off, the small-diameter head
portion 11A abuts against the cradle 1D.
After the separating member 1 has been inserted into the bobbin aggregate
10, the air jetting pores 1B are positioned in a substantially central portion
of the void portion 11C between the small-diameter head portion 11A of the
bobbin 11 and the small-diameter head portion 12A of the bobbin 12.
Thus, when compressed air is jetted from the air jetting pores 1B through
the air supply passage 1C, it fills the void portion 11C and operates to
separate the bobbin 11 from the bobbin 12. As described previously, the bobbin
12 is gripped by the clamp 3. Accordingly, only the bobbin 11 drops off and is
consequently separated downward from the bobbin 12. The small-diameter head
portion 11A then abuts against the cradle 1D and is held by it.
The procedure of separating the bobbin 11 will be described in further
detail with reference to Figure 2.
As shown in Figure 2(A), the bobbin 11 is abutted against the stopper 2 so
that its small-diameter head portion 11A faces downward. The bobbin aggregate
10, in which the large number of bobbins 11, 12, ... are laminated so that one
bobbin is fitted into another, is thus placed on the stopper 2. Then, as shown
in Figure 2(B), the clamp 3 is driven to grip the large-diameter bottom portion
12B of the second bobbin 12. In this state, the stopper 2 is pivoted to elevate
the separating member 1 as shown in Figure 2(C). Once the separating member 1
is elevated by a predetermined amount, the air jetting pores 1B are positioned
in the void portion 11C. The cradle 1D stops at a predetermined distance from
the small-diameter head portion 11A. Then, when compressed air is jetted, the
lowermost bobbin 11 is separated from the bobbin aggregate 10 and drops off as
shown in Figure 2(D). The small-diameter head portion 11A is abutted against
and placed on the cradle 1D. In this state, when the separating member 1 is
lowered, it moves with the bobbin 11 placed on the cradle 1D.
Now, the cone type bobbin supplying device M according to the present
invention will be described with reference to Figure 3 and Figure 4.
After the bobbin aggregate 10 has been installed on a stand 7, a pivotal
driving device 8 rotates the stand 7 counterclockwise as shown in the figures.
The bobbin aggregate 10 is thus stood up straight as shown by the alternate long
and two short dashes line. At this time, the stopper 2 is standing by at a
predetermined position to receive the lowermost bobbin 11 of the vertically
rising bobbin aggregate 10.
Then, the clamp 3 is driven to cause the large-diameter bottom portion 12B
of the second lowest bobbin 12 to be gripped. While the clamp 3 is being
driven, even when the stopper 2 is pivoted from its predetermined position, the
lowermost bobbin 11 does not drop off from the bobbin aggregate 10. The clamp 3
firmly grips the whole bobbin aggregate 10.
After the stopper 2 has been pivoted from its predetermined position, a
large space portion is formed at the bottom of the bobbin 11. The separating
member 1 is disposed in the space portion so as to elevate and lower freely.
Then, a predetermined control signal is used to drive the separating member 1
to separate the bobbins from the aggregate one by one. The separated bobbin is
then supplied to a conveying passage 6.
The separating member 1 is drivingly elevated and lowered by a driving
device 4 via a mounting member 1G. The separating member 1 can also be
rotatively moved around a support shaft 4a by a pivotal driving device 4A.
After the separating member 1 has separated and placed the bobbin 11 on the
cradle 1D and has subsequently lowered, it is pivoted so as to change its
direction to a horizontal one as shown in Figure 4. Then, the separated bobbin
11 is placed on and delivered to a receiving guide 5 the top of which is open
so that the separating member 1 can supply the bobbin 11 to the receiving guide
5 through its top, the bottom of the receiving guide 5 being formed
substantially like a cylinder. Subsequently, the cylinder 5A is driven to
pivot the receiving guide 5 to separate the bobbin 11 from the round bar portion
1A. Moreover, while the receiving guide 5 is being pivoted, the large-diameter
bottom portion 11B collides against a separating wall portion 5B arranged at
the position where it does not interfere with the receiving guide 5 but only
with the bobbin 11 placed on the receiving guide 5. Accordingly, the bobbin 11
is separated from the pivoting receiving guide 5 and drops onto an inclined
surface 9. The bobbin 11 is then rolled and guided along the inclined surface
9 to the conveying passage 6.
The round bar portion 1A has a diameter slightly smaller than that of the
pore 11a in the small-diameter head portion 11A of the bobbin 11. A certain
external force is preferably exerted in order to reliably separate the bobbin 11
from the separating member 1 utilizing the friction between them. Thus, the
receiving guide 5 is provided as a second separating member to separate the
bobbin 11 from the round bar portion 1A. After the pivoting separating member 1
has delivered the bobbin 11 to the receiving guide 5, when the receiving guide
5 starts pivoting, it applies a force acting in the direction in which the
bobbin 11 is pulled out of the round bar portion 1A. Further pivoting of the
receiving guide 5 completely separates the bobbin 11 from the round bar portion
1A to remove the bobbin 11 from the separating member 1.
An air cylinder is employed as the driving device 4, and a rack and pinion
is employed as the pivotal driving device 4A. However, the driving source is
not specifically limited. Other driving device may be used.
Furthermore, in the above description, the bobbin 11 is separated from the
aggregate by the separating member 1 and then guided to the conveying passage 6.
However, the step executed after the bobbin 11 has been separated from the
aggregate by the separating member 1 is not specifically limited.
Furthermore, sensing means for sensing a bobbin includes a sensor S1 that
senses a bobbin 13 located immediately above the cone type bobbin 12 gripped by
the clamp 3 and a sensor S2 that senses the bobbin 11 separated from the
aggregate and abutted against the cradle 1D.
Specifically, the sensor S2 is composed of a detecting tip portion S2a that
can be rotatively moved up and down by the load of the dropping bobbin 11 and a
switch member arranged so that a button is positioned near the rotative moving
center of the detecting tip portion S2a. As the bobbin 11 drops, the detecting
tip portion S2a is pushed downward and rotatively moved to push the button. The
switch member then converts this change into an electric signal. Moreover, on
the basis of the electric signal, a separation state determining section 20A of
a (separating member) control section 20 determines whether or not the
separating member 1 has successfully separated the bobbin 11 from the bobbin
aggregate 10.
The sensor S1 executes detection as to whether or not any bobbin remains in
the bobbin aggregate 10 supplied by the stand 7. If any bobbin remains, an
elevating and lowering control section 20C of the control section 20 elevates
the separating member 1 to insert the round bar portion 1A through the pore 11a
in the small-diameter head portion 11A of the bobbin 11. An air jet control
section 20B then controllably opens the supply valve 21 to jet compressed air.
If this single jetting operation succeeds in separating the bobbin 11 from the
bobbin aggregate 10, the bobbin 11 drops onto the cradle 1D. When the sensor
S2 detects the dropping bobbin 11, the separating member control section 20
continuously performs the subsequent transfer operation (the operation of
lowering and pivoting the separating member 1).
If the sensor S2 does not detect the bobbin 11 after a single operation of
jetting compressed air, the determining section 20A determines that the bobbin
11 has not been separated from the bobbin aggregate 10. On the basis of this
determination, the air jet control section 20B controllably opens the supply
valve again to jet compressed air again. A program is provided which the device
to execute the above process. These arrangements have eliminated the need for
the operator's maintenance and enabled the bobbin 11 to be surely separated from
the bobbin aggregate 10. The number of such trials can further be increased
and may be three or four. However, in the present embodiment, an upper limit
value may be preset for the number of jetting operations so that an alarm can be
issued once the number of jetting operations reaches the upper limit value.
Furthermore, if the sensor S1 no longer detects any bobbins, it is
determined that there are no more bobbins over the one gripped by the clamp 3.
The device may be configured so that this fact may be displayed or that a next
new bobbin aggregate 10 is supplied.
The switch member comprising the button is employed as the sensor S2.
However, the type of the sensor is not specifically limited. It is allowable to
provide a photoelectric sensor that directly optically senses the bobbin 11 or
to mount a pressure sensor that detects the load of the bobbin 11 on the cradle
1D provided that the sensor can sense the presence of the bobbin 11 on the
cradle 1D. This also applies to the sensor S1.
In the above described example, the first bobbin 11 is separated from the
bobbin aggregate 10 by jetting compressed air into the void portion 11C between
the first bobbin 11 and the second bobbin 12 through the end of the laminated
bobbins, while gripping the second bobbin 12 from the end of the bobbin
aggregate 10.
However, the present invention is not limited to this aspect. For example,
it is assumed that the sensor S2 fails to detect a bobbin and that it is
determined that the first bobbin 11 has not been separated from the bobbin
aggregate 10. Then, the round bar portion 1A may be elevated by one pitch,
i.e. by an amount equal to one bobbin. Compressed air may then be jetted into
the void portion between the second bobbin and the third bobbin to separate,
from the original bobbin aggregate, a sub-aggregate composed of the two bobbins
including the first and second bobbins. The sub-aggregate may then be conveyed
to an area different from the normal one.
Moreover, in the above embodiment, the round bar portion 1A is inserted
from the small-diameter head portion 11A side of the bobbin 11. However,
bobbins from the stand 7 may be supplied in the opposite direction so that the
round bar portion 1A can be inserted from the large-diameter bottom portions of
the bobbins to abut the large-diameter bottom portion 11b against the cradle 1D.
That is, according to the present invention, even if a large number of cone
type bobbins are laminated so that one bobbin is fitted into another, the cone
type bobbin supplying device can reliably separate the bobbins from the bobbin
aggregate while minimizing the adverse effect on the surface shape of the
bobbins resulting from excessive rubbing of the separating member 1 against the
surface of the bobbins.
As described above, according to the present invention, a cone type bobbin
can be surely separated from a bobbin aggregate in which a plurality of bobbins
are laminated, while minimizing the adverse effect on the surface shape of the
bobbin, simply by inserting a separating member with air jetting pores into the
bobbin aggregate and jetting compressed air into a void position formed between
a gripped arbitrary bobbin and another bobbin joined to the arbitrary bobbin by
an inner and outer peripheral surfaces of the arbitrary bobbin and the above
mentioned another bobbin, respectively.
Furthermore, if the cone type bobbin cannot be separated from the bobbin
aggregate by a single operation of jetting compressed air, compressed air is
jetted again. This eliminates the need for the operator's maintenance and
enables bobbins to be reliably supplied to a winding device.
Claims (7)
- A cone type bobbin supplying device that supplies a cone type bobbin to a yarn winding device by separating the cone type bobbin from a bobbin aggregate in which a plurality of cone type bobbins are laminated by fitting one bobbin into another, the cone type bobbin supplying device being characterized by comprising:a separating member that grips an arbitrary bobbin from said bobbin aggregate and which jets compressed air into a void portion formed between the gripped arbitrary bobbin and another bobbin joined to the arbitrary bobbin by an inner and outer peripheral surfaces of the arbitrary bobbin and said another bobbin, respectively, to separate said another bobbin.
- A cone type bobbin supplying device according to Claim 1, characterized in that said separating member comprises a round bar portion having a diameter slightly smaller than a pore size of a small-diameter head side of each of the laminated bobbins, and said round bar portion has a sufficient length to be inserted from the small-diameter head side of said another bobbin until the round bar portion penetrates at least the small-diameter head side of the arbitrary bobbin, and comprises air jet pores formed on a circumference of the round bar portion and from which air is jetted outward in a radial direction.
- A cone type bobbin supplying device according to Claim 2, characterized in that said separating member comprises a second separating member that separates said round bar portion from the small-diameter head portion while holding the separated bobbin, to remove the separated bobbin from the separating member.
- A cone type bobbin supplying device according to Claim 3, characterized by further comprising a stand on which said bobbin aggregate can be installed, a driving device that drives the stand so that the installed bobbin aggregate rises vertically, a cradle that holds a bobbin that drops off from the vertically rising bobbin aggregate by the first separating member, and a driving device that changes the direction of the bobbin held on the cradle and of said round bar portion so that the bobbin and the round bar portion extend in a horizontal direction, and in that the second separating member separates the horizontally extending round bar portion from the small-diameter head portion to remove the separated bobbin from the first separating member.
- A cone type bobbin supplying device according to Claim 3 or Claim 4, characterized in that said second separating member comprises a receiving guide on which the bobbin separated from the first separating member can be placed and which can be pivoted in a direction in which the small-diameter head portion of the placed bobbin is separated from said round bar portion, and the cone type bobbin supplying device is provided with a separating wall portion that interferes with the bobbin placed on the receiving guide when the receiving guide is pivoted, to separate the bobbin from the receiving guide.
- A cone type bobbin supplying device according to any one of Claims 1 ∼ 5, characterized in that said separating member comprises sensing means for detecting a separated cone type bobbin, and the cone type bobbin supplying device is provided with an air jet control section that operates when said bobbin is not detected after compressed air has been jetted, to jet compressed air again.
- A cone type bobbin supplying device according to Claim 6, characterized by further comprising a stand on which said bobbin aggregate can be installed and a driving device that drives the stand so that the installed bobbin aggregate rises vertically, and in that said sensing means comprises a switch member arranged so that a button is pushed by a load of a bobbin that is dropped off from the vertically rising bobbin aggregate by the first separating member.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003040720A JP2004250140A (en) | 2003-02-19 | 2003-02-19 | Cone-shaped bobbin supply device |
| JP2003040720 | 2003-02-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1457449A2 true EP1457449A2 (en) | 2004-09-15 |
| EP1457449A3 EP1457449A3 (en) | 2004-12-08 |
Family
ID=32767697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP04001008A Withdrawn EP1457449A3 (en) | 2003-02-19 | 2004-01-19 | Cone type bobbin supplying device |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1457449A3 (en) |
| JP (1) | JP2004250140A (en) |
| CN (1) | CN1523144A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007056563B4 (en) * | 2007-11-23 | 2020-11-05 | Saurer Intelligent Machinery Co. Ltd. | Tube storage for an open-end rotor spinning machine not equipped with an automatically working piecing unit |
| US8571619B2 (en) | 2009-05-20 | 2013-10-29 | Masimo Corporation | Hemoglobin display and patient treatment |
| CN112010112B (en) * | 2019-05-30 | 2022-09-20 | 安徽省金士棉机有限责任公司 | Automatic bobbin winder and control method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2672991A (en) * | 1951-01-03 | 1954-03-23 | American Viscose Corp | Stacked cone loosening method and mechanism |
| US4052250A (en) * | 1974-08-15 | 1977-10-04 | Potts Robert G | Cone labeling, separating and restacking apparatus |
| US4655665A (en) * | 1985-02-06 | 1987-04-07 | Machinenfabrik Rieter Ag | Bobbin magazine for a travelling service device of a yarn processing machine |
-
2003
- 2003-02-19 JP JP2003040720A patent/JP2004250140A/en active Pending
-
2004
- 2004-01-19 EP EP04001008A patent/EP1457449A3/en not_active Withdrawn
- 2004-02-17 CN CNA2004100052337A patent/CN1523144A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN1523144A (en) | 2004-08-25 |
| EP1457449A3 (en) | 2004-12-08 |
| JP2004250140A (en) | 2004-09-09 |
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