EP2924152A2 - Top comb device of comber - Google Patents
Top comb device of comber Download PDFInfo
- Publication number
- EP2924152A2 EP2924152A2 EP15159558.4A EP15159558A EP2924152A2 EP 2924152 A2 EP2924152 A2 EP 2924152A2 EP 15159558 A EP15159558 A EP 15159558A EP 2924152 A2 EP2924152 A2 EP 2924152A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- top comb
- comb
- holder
- clamped
- fixing support
- 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.)
- Granted
Links
- 241000347389 Serranus cabrilla Species 0.000 title claims abstract description 22
- 238000005452 bending Methods 0.000 description 14
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000003014 reinforcing effect Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 210000001520 comb Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000003562 lightweight material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
- D01G19/00—Combing machines
- D01G19/06—Details
- D01G19/10—Construction, mounting, or operating features of combing elements
Definitions
- the present invention relates generally to a top comb device of a comber and, more specifically, to a top comb device of a comber, having a top comb and a top comb holder.
- a comber has a plurality of combing heads (eight combing heads in general). A series of operations for making sliver from lap as material is performed at each combing head.
- FIG. 5 is a schematic side view of one of the combing heads of a known comber. It is noted that the left-hand side and right-hand side of FIG. 5 correspond to the front and the rear of a combing head 51, respectively.
- the combing head 51 includes a nipper device 53, a combing cylinder 54, and two pairs of detaching rollers 55, 56.
- the nipper device 53 has a feed roller 52 and the paired detaching rollers 56 are located forward of the paired detaching rollers 55.
- the nipper device 53 has a nipper frame 57 that is disposed above the combing cylinder 54 and pivotally supported by a shaft so as to be swingable back and forth.
- the nipper frame 57 has at the bottom thereof a bottom nipper 58.
- the nipper frame 57 is configured so that the front end of the bottom nipper 58 is moved toward and away from the detaching rollers 55.
- a nipper arm 59 having at one end thereof a top nipper 59A is pivotally connected at the end thereof to the nipper frame 57 through a shaft.
- the top nipper 59A is operated to be opened and closed at a predetermined time in synchronization with the back-and-forth movement of the nipper frame 57 thereby to hold a lap L in conjunction with the bottom nipper 58.
- a top comb 60 is mounted to the nipper frame 57 at a position that is forward of the bottom nipper 58 and operable to move in synchronization with the nipper frame 57.
- the top comb 60 combs the rear end of fleece combed by the combing cylinder 54.
- the top comb 60 is fixed to a plate-shaped top comb holder 61 at a plurality of positions by screws not shown in the drawing.
- FIG. 6 is a side view of a top comb device according to a background art.
- European Patent Application Publication No. 2085505 discloses a configuration in which the top comb holder 61 is strengthen by a reinforcing member 62 and the top comb 60 interposed between a clamp plate 63 and the top comb holder 61 is fixed by a screw 64.
- the top comb holder 61 is strengthen by the reinforcing member 62 and the top comb 60 is fixed through the clamp plate 63 to the top comb holder 61, the bending of the top comb 60 in the longitudinal direction thereof (in the perpendicular direction to the surface of paper of FIG. 6 ) is suppressed.
- the detaching rollers 55 are disposed just forward of the top comb holder 61, as shown in FIG. 5 , the reinforcing member 62 can only extend to a position adjacent to the upper end of the top comb 60. Therefore, the bending of the top comb 60 in the longitudinal direction thereof cannot be suppressed enough to improve the combing performance.
- the present invention which has been made in light of the above problems, is directed to providing a top comb device of a comber, which can secure the combing performance at increased operating speed and for increased production by appropriately suppressing the bending of the top comb in the longitudinal direction.
- a top comb device of a comber including a top comb holder that is moveable in synchronization with a nipper frame, and a top comb that is detachably fixed to the top comb holder.
- the top holder has a U-shaped fixing support member that clamps the top comb by engagement with the top comb at opposite sides thereof across thickness thereof.
- the top comb device is designated by reference numeral 10 and has a top comb holder 11 and a top comb 12.
- the top comb holder 11 is operable to move in synchronization with a nipper frame 21 (shown in FIG. 2 ) of the comber.
- the top comb 12 is detachably fixed to the top comb holder 11.
- the top comb 12 has a comb body 14 and a comb teeth member 15.
- the comb body 14 is fixed to the top comb holder 11 by a screw 13.
- the comb teeth member 15 is formed separately and combined with the comb body 14 at a position adjacent to the top end of the comb body 14.
- the comb body 14 has a clamped portion 14B, a comb teeth combining portion 14A, and a thickness increasing portion 14C.
- the clamped portion 14B is fixed to the top comb holder 11 by being clamped by a fixing support member 16 which will be described later.
- the comb teeth member 15 is held and fixed in the comb teeth combining portion 14A.
- the thickness increasing portion 14C extends between the clamped portion 14B and the comb teeth combining portion 14A and formed in such a way that the thickness of the thickness increasing portion 14C is increased toward the clamped portion 14B, so that the clamped portion 14B is formed thicker than the comb teeth combining portion 14A.
- the clamped portion 14B clamped by the above-described fixing support member 16 is thicker than a portion of the top comb 12 between the clamped portion 14B and the comb teeth member 15. As shown in FIG. 1A , the clamped portion 14B is hollowed.
- the comb body 14 and the comb teeth member 15 are made of different materials.
- the comb body 14 is made of a lightweight material with a rigidity such as aluminum alloy.
- the comb teeth member 15 is made of a material such as steel having durability against combing.
- the comb teeth member 15 is fixed to the comb body 14, for example, by insert molding.
- the top comb holder 11 includes the aforementioned fixing support member 16 that has a U-shaped cross-section.
- the fixing support member 16 has a front wall portion 16A through which a hole 17 is formed for receiving therethrough the screw 13 and a rear wall portion 16B in which an internal thread portion 18 is formed for receiving therein the end of an external thread portion 13A of the screw 13.
- the fixing support member 16 holds the top comb 12 with the clamped portion 14B of the comb body 14 of the top comb 12 held between the front wall portion 16A and the rear wall portion 16B. Tightening the screw 13 through the hole 17 of the front wall portion 16A and an elongated hole 19 of the top comb 12, the top comb 12 is fixed securely to the top comb holder 11.
- the front wall portion 16A is disposed on the side of top comb 12 that is opposite from a top nipper 24A (shown in FIG. 2 ).
- the top comb device 10 is fixed to a support lever (not shown) of a nipper frame 21 of a nipper device 20 of the comber at a position above the top comb holder 11.
- the nipper frame 21 is pivotally supported by a shaft (not shown) mounted to the support lever.
- Lap L supplied from a lap supply source (not shown) is delivered toward a position forward of a bottom nipper 23 by a feed roller 22.
- the top nipper 24A is fixed to a nipper arm 24 that is pivotally supported by a shaft mounted in the nipper frame 21.
- the top nipper 24A is operated to be opened and closed at a controlled timing in synchronization with the back-and-forth movement of the nipper frame 21 thereby to hold the lap L in conjunction with the bottom nipper 23.
- the bottom nipper 23 is swung back and forth with the nipper frame 21, with the result that the leading end of the lap L held by the bottom nipper 23 and the top nipper 24A is combed by a combing cylinder (not shown), thus being formed into a fleece F and the resulting fleece F is moved toward detaching rollers 25 by forward movement of the nipper frame 21.
- the detaching rollers 25 are reversed thereby to move the preceding fleece backward.
- the rear end of the preceding fleece and the front end of the newly combed fleece (following fleece) are lapped one on the other.
- the fleece F is moved forward from the nipper device 20 and the trailing end of the preceding fleece F is combed by the comb teeth member 15 of the top comb 12. Repeating such operations, the fleece F fed by each combing head is bundled, drafted and compressed into sliver by a calendar roller.
- the quality of the fleece F combed by the top comb 12 depends on whether all the teeth of the comb teeth member 15 of the top comb 12 repeat the insertion into the fleece F to a predetermined depth at the respective positions across the fleece F.
- the depth to which the teeth of the comb teeth member 15 is inserted into the fleece F may be adjusted by changing the position of the top comb 12 relative to the fixing support member 16.
- the top comb 12 is allowed to move along the length thereof for the adjustment by the provision of the elongated hole 19.
- the fleece F is transferred by the detaching roller 25 while being inserted by the comb teeth member 15 of the top comb 12, so that the top comb 12 receives through the comb teeth member 15 a force of the fleece F acting toward the detaching roller 25.
- the force is increased with an increase of the operating speed of the comber and of the production amount.
- the top comb holder 11 has the U-shaped fixing support member 16 having a pair of front and rear wall portions 16A, 16B that holds therebetween the top comb 12.
- the top comb 12 in the present embodiment which is engaged with the front and rear wall portions 16A, 16B of the U-shaped fixing support member 16 over a length that is large enough to resist the force created when the fleece is transferred by the detaching rollers 25 with the comb teeth member 15 inserted in the fleece is harder to be bent in the longitudinal direction thereof.
- the longitudinal direction of the top comb 12 indicates the perpendicular direction to the surface of paper of FIG.
- the top comb 12 is bent in the longitudinal direction when receiving the above-cited force of the fleece F. According to the above-described configuration, bending of the top comb 12 in the longitudinal direction thereof is suppressed successfully and the desired combing performance can be secured at an increased operating speed of the comber for an increased production.
- the top comb 12 is formed so that the clamped portion 14B of the comb body 14 clamped by the fixing support member 16 is formed with a thickness that is greater than the thickness of the portion of the comb body 14 between the clamped portion 14B and the comb teeth member 15, or the comb teeth combining portion 14A and the thickness increasing portion 14C.
- the thickness increasing portion 14C of the top comb 12 between the thickness increasing portion 14C and the comb teeth combining portion 14A has a thickness that increases toward the clamped portion 14B.
- the bending resistance of cross section of a member is proportional to the second moment of area.
- the second moment of area is calculated by integrating the product of a differential area dA in the section and squared distance from an axis by reference to the geometric center of the section, in the entire sectional region.
- a comb body having a thickness increasing portion such as 14C has a greater second moment of area than a comb body that has the same length but is formed with a constant thickness. Therefore, the former comb body 14 is harder to bend.
- the thickness of the comb teeth combining portion 14A remains unchanged, so that combing performance is not deteriorated.
- the clamped portion 14B of the comb body 14 of the top comb 12 is formed thicker than the comb teeth combining portion 14A, with the result that the secondary moment of area of the top comb holder 11 is greater and the bending rigidity in the longitudinal direction of the top comb holder 11 becomes greater, accordingly. As a result, the bending of the top comb 12 in the longitudinal direction of the top comb 12 during combing operation is suppressed.
- the present embodiment has the following advantageous effects.
- the present invention is not limited to the above-described embodiment, but may be embodied in various manners as follows. It is noted that same reference numerals are used in the following description to denote parts or elements that are similar to the counterparts of the embodiment described above with reference to FIGS. 1A, 1B, and 2 . As shown in FIG. 3 , in the top comb 12, the clamped portion 14B clamped by the fixing support member 16 need not be thicker than the portion of the top comb 12 extending from the clamped portion 14B to the comb teeth member 15.
- the top comb holder 11 may be provided with a reinforcing member 30 at a position adjacent to the front wall portion 16A of the top comb holder 11 as in the case of the above-cited European Patent Application Publication No. 2085505 .
- the clamped portion 14B of the top comb 12 clamped by the fixing support member 16 may be thicker than the portion of the top comb 12 extending from the clamped portion 14B to the comb teeth member 15.
- the portion of the top comb 12 extending from the fixing support member 16 toward the comb teeth member 15 may be bent so that the comb teeth member 15 extends in parallel to a contact surface 31 between the rear wall portion 16B of the fixing support member 16 and the clamped portion 14B of the top comb 12 at a position behind the contact surface 31.
- the clamped portion 14B can be thicker.
- the secondary moment of area of the top comb 12 according to the above-described configuration becomes larger than that of the top comb 12 having a configuration in which a portion from the clamped portion 14B clamped by the fixing support member 16 of the top comb 12 toward the comb teeth member 15 extends straight, with the result that a portion adjacent to the top of the top comb 12 is hard to be bent.
- the rear wall portion 16B may be formed thinner than the front wall portion 16A.
- the screw 13 may be disposed with the head thereof located on the rear wall portion 16B side of the top comb 12, as shown in FIG. 4B .
- the top comb 12 is clamped by the fixing support member 16 with the end of the external thread portion 13A of the screw 13 engaged with the internal thread portion 18 formed in the front wall portion 16A.
- a recess may be formed in the rear wall portion 16B for accommodating therein the head of the screw 13 instead of thinning the rear wall portion 16B.
- the internal thread portion 18 receiving the end of the external thread portion 13A of the screw 13 may be provided in the form of a through hole or a blind hole in the front wall portion 16A or the rear wall portion 16B.
- a bolt and a nut may be used instead of the screw 13 as a means for detachably holding the top comb holder 11 by the top comb 12. If the clamped portion 14B of the top comb 12 is formed thick, the clamped portion 14B of the top comb 12 may be formed solid instead of being hollowed.
- a top comb device of a comber including a top comb holder that is moveable in synchronization with a nipper frame, and a top comb that is detachably fixed to the top comb holder.
- the top holder has a U-shaped fixing support member that clamps the top comb by engagement with the top comb at opposite sides thereof across thickness thereof.
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- Textile Engineering (AREA)
- Preliminary Treatment Of Fibers (AREA)
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Abstract
Description
- The present invention relates generally to a top comb device of a comber and, more specifically, to a top comb device of a comber, having a top comb and a top comb holder.
- A comber has a plurality of combing heads (eight combing heads in general). A series of operations for making sliver from lap as material is performed at each combing head.
FIG. 5 is a schematic side view of one of the combing heads of a known comber. It is noted that the left-hand side and right-hand side ofFIG. 5 correspond to the front and the rear of a combinghead 51, respectively. As shown inFIG. 5 , the combinghead 51 includes anipper device 53, a combingcylinder 54, and two pairs of detachingrollers nipper device 53 has afeed roller 52 and the paired detachingrollers 56 are located forward of the paired detachingrollers 55. Thenipper device 53 has anipper frame 57 that is disposed above the combingcylinder 54 and pivotally supported by a shaft so as to be swingable back and forth. Thenipper frame 57 has at the bottom thereof abottom nipper 58. - The
nipper frame 57 is configured so that the front end of thebottom nipper 58 is moved toward and away from the detachingrollers 55. Anipper arm 59 having at one end thereof atop nipper 59A is pivotally connected at the end thereof to thenipper frame 57 through a shaft. Thetop nipper 59A is operated to be opened and closed at a predetermined time in synchronization with the back-and-forth movement of thenipper frame 57 thereby to hold a lap L in conjunction with thebottom nipper 58. - A
top comb 60 is mounted to thenipper frame 57 at a position that is forward of thebottom nipper 58 and operable to move in synchronization with thenipper frame 57. Thetop comb 60 combs the rear end of fleece combed by the combingcylinder 54. Thetop comb 60 is fixed to a plate-shapedtop comb holder 61 at a plurality of positions by screws not shown in the drawing. - In these years, bending of a top comb has become a problem with an increasing operating speed and production volume (or increasing amount of cotton to be handled per unit time).
FIG. 6 is a side view of a top comb device according to a background art. To solve the problem with the bending of the top comb, as shown inFIG. 6 , European Patent Application Publication No.2085505 discloses a configuration in which thetop comb holder 61 is strengthen by a reinforcingmember 62 and thetop comb 60 interposed between aclamp plate 63 and thetop comb holder 61 is fixed by ascrew 64. - In the configuration according to the above-cited Publication in which the
top comb holder 61 is strengthen by the reinforcingmember 62 and thetop comb 60 is fixed through theclamp plate 63 to thetop comb holder 61, the bending of thetop comb 60 in the longitudinal direction thereof (in the perpendicular direction to the surface of paper ofFIG. 6 ) is suppressed. However, since the detachingrollers 55 are disposed just forward of thetop comb holder 61, as shown inFIG. 5 , the reinforcingmember 62 can only extend to a position adjacent to the upper end of thetop comb 60. Therefore, the bending of thetop comb 60 in the longitudinal direction thereof cannot be suppressed enough to improve the combing performance. - The present invention, which has been made in light of the above problems, is directed to providing a top comb device of a comber, which can secure the combing performance at increased operating speed and for increased production by appropriately suppressing the bending of the top comb in the longitudinal direction.
- There is provided a top comb device of a comber, including a top comb holder that is moveable in synchronization with a nipper frame, and a top comb that is detachably fixed to the top comb holder. The top holder has a U-shaped fixing support member that clamps the top comb by engagement with the top comb at opposite sides thereof across thickness thereof.
- Other aspects and advantages of the invention will become apparent from the following description, taken in conjunction with the accompanying drawings, illustrating by way of example the principles of the invention.
- The invention together with objects and advantages thereof, may best be understood by reference to the following description of the presently preferred embodiments together with the accompanying drawings in which:
-
FIG. 1A is a side view of a top comb device according to an embodiment of the present invention andFIG. 1B is a sectional view of the top comb device ofFIG. 1A ; -
FIG. 2 is a schematic side view showing the relation between the top comb device and a nipper according to the embodiment; -
FIG. 3 is a side view of a top comb device according to another embodiment of the present invention; -
FIG. 4A is a side view of a top comb device according to still another embodiment of the present invention andFIG. 4B is a side view of a top comb device according to yet another embodiment of the present invention; -
FIG. 5 is a schematic side view of a known conventional comber; and -
FIG. 6 is a side view of a top comb device of the comber ofFIG. 5 . - The following will describe a top comb device of a comber according to an embodiment of the present invention with reference to
FIGS. 1A, 1B, and 2 . As shown inFIGS. 1A and 1B , the top comb device is designated byreference numeral 10 and has atop comb holder 11 and atop comb 12. Thetop comb holder 11 is operable to move in synchronization with a nipper frame 21 (shown inFIG. 2 ) of the comber. Thetop comb 12 is detachably fixed to thetop comb holder 11. Thetop comb 12 has acomb body 14 and acomb teeth member 15. Thecomb body 14 is fixed to thetop comb holder 11 by ascrew 13. Thecomb teeth member 15 is formed separately and combined with thecomb body 14 at a position adjacent to the top end of thecomb body 14. - The
comb body 14 has a clampedportion 14B, a combteeth combining portion 14A, and athickness increasing portion 14C. The clampedportion 14B is fixed to thetop comb holder 11 by being clamped by afixing support member 16 which will be described later. Thecomb teeth member 15 is held and fixed in the combteeth combining portion 14A. Thethickness increasing portion 14C extends between the clampedportion 14B and the combteeth combining portion 14A and formed in such a way that the thickness of thethickness increasing portion 14C is increased toward the clampedportion 14B, so that the clampedportion 14B is formed thicker than the combteeth combining portion 14A. To be more specific, in thetop comb 12, the clampedportion 14B clamped by the above-describedfixing support member 16 is thicker than a portion of thetop comb 12 between the clampedportion 14B and thecomb teeth member 15. As shown inFIG. 1A , the clampedportion 14B is hollowed. - The
comb body 14 and thecomb teeth member 15 are made of different materials. Thecomb body 14 is made of a lightweight material with a rigidity such as aluminum alloy. Thecomb teeth member 15 is made of a material such as steel having durability against combing. Thecomb teeth member 15 is fixed to thecomb body 14, for example, by insert molding. - The
top comb holder 11 includes the aforementionedfixing support member 16 that has a U-shaped cross-section. Thefixing support member 16 has afront wall portion 16A through which ahole 17 is formed for receiving therethrough thescrew 13 and arear wall portion 16B in which aninternal thread portion 18 is formed for receiving therein the end of anexternal thread portion 13A of thescrew 13. Thefixing support member 16 holds thetop comb 12 with the clampedportion 14B of thecomb body 14 of thetop comb 12 held between thefront wall portion 16A and therear wall portion 16B. Tightening thescrew 13 through thehole 17 of thefront wall portion 16A and anelongated hole 19 of thetop comb 12, thetop comb 12 is fixed securely to thetop comb holder 11. It is noted that thefront wall portion 16A is disposed on the side oftop comb 12 that is opposite from atop nipper 24A (shown inFIG. 2 ). - The following will describe the operation of the above-described
top comb device 10. As shown inFIG. 2 , thetop comb device 10 is fixed to a support lever (not shown) of anipper frame 21 of anipper device 20 of the comber at a position above thetop comb holder 11. Thenipper frame 21 is pivotally supported by a shaft (not shown) mounted to the support lever. Lap L supplied from a lap supply source (not shown) is delivered toward a position forward of abottom nipper 23 by afeed roller 22. Thetop nipper 24A is fixed to anipper arm 24 that is pivotally supported by a shaft mounted in thenipper frame 21. Thetop nipper 24A is operated to be opened and closed at a controlled timing in synchronization with the back-and-forth movement of thenipper frame 21 thereby to hold the lap L in conjunction with thebottom nipper 23. - During the operation of the comber, the
bottom nipper 23 is swung back and forth with thenipper frame 21, with the result that the leading end of the lap L held by thebottom nipper 23 and thetop nipper 24A is combed by a combing cylinder (not shown), thus being formed into a fleece F and the resulting fleece F is moved toward detachingrollers 25 by forward movement of thenipper frame 21. In accordance with the forward movement of the fleece F, the detachingrollers 25 are reversed thereby to move the preceding fleece backward. Thus, the rear end of the preceding fleece and the front end of the newly combed fleece (following fleece) are lapped one on the other. When the detachingroller 25 is rotated in forward direction, the fleece F is moved forward from thenipper device 20 and the trailing end of the preceding fleece F is combed by thecomb teeth member 15 of thetop comb 12. Repeating such operations, the fleece F fed by each combing head is bundled, drafted and compressed into sliver by a calendar roller. - The quality of the fleece F combed by the
top comb 12 depends on whether all the teeth of thecomb teeth member 15 of thetop comb 12 repeat the insertion into the fleece F to a predetermined depth at the respective positions across the fleece F. The depth to which the teeth of thecomb teeth member 15 is inserted into the fleece F may be adjusted by changing the position of thetop comb 12 relative to the fixingsupport member 16. Thetop comb 12 is allowed to move along the length thereof for the adjustment by the provision of theelongated hole 19. - The fleece F is transferred by the detaching
roller 25 while being inserted by thecomb teeth member 15 of thetop comb 12, so that thetop comb 12 receives through the comb teeth member 15 a force of the fleece F acting toward the detachingroller 25. The force is increased with an increase of the operating speed of the comber and of the production amount. - In the present embodiment, the
top comb holder 11 has the U-shapedfixing support member 16 having a pair of front andrear wall portions top comb 12. As compared to the configuration of the back background art in which the reinforcingmember 62 is provided above the top comb 60 (FIG. 6 ), thetop comb 12 in the present embodiment, which is engaged with the front andrear wall portions fixing support member 16 over a length that is large enough to resist the force created when the fleece is transferred by the detachingrollers 25 with thecomb teeth member 15 inserted in the fleece is harder to be bent in the longitudinal direction thereof. It is noted that the longitudinal direction of thetop comb 12 indicates the perpendicular direction to the surface of paper ofFIG. 2 and thetop comb 12 is bent in the longitudinal direction when receiving the above-cited force of the fleece F. According to the above-described configuration, bending of thetop comb 12 in the longitudinal direction thereof is suppressed successfully and the desired combing performance can be secured at an increased operating speed of the comber for an increased production. - In the embodiment, the
top comb 12 is formed so that the clampedportion 14B of thecomb body 14 clamped by the fixingsupport member 16 is formed with a thickness that is greater than the thickness of the portion of thecomb body 14 between the clampedportion 14B and thecomb teeth member 15, or the combteeth combining portion 14A and thethickness increasing portion 14C. Thethickness increasing portion 14C of thetop comb 12 between thethickness increasing portion 14C and the combteeth combining portion 14A has a thickness that increases toward the clampedportion 14B. Therefore, rigidity of thecomb body 14 against the bending in back and forth direction of thetop comb 12 is higher as compared to the configuration in which the comb body of the top comb is made of a flat plate, with the result that the bending of the combteeth combining portion 14A in back and forth of thetop comb 12 during combing operation of thetop comb 12 is suppressed. - Specifically, the bending resistance of cross section of a member is proportional to the second moment of area. When the entire area of the section and a differential area in the section are expressed by A and dA, respectively, the second moment of area is calculated by integrating the product of a differential area dA in the section and squared distance from an axis by reference to the geometric center of the section, in the entire sectional region. A comb body having a thickness increasing portion such as 14C has a greater second moment of area than a comb body that has the same length but is formed with a constant thickness. Therefore, the
former comb body 14 is harder to bend. The thickness of the combteeth combining portion 14A remains unchanged, so that combing performance is not deteriorated. - Furthermore, as compared to a case in which the clamped portion such as 14B is formed with a constant thickness, the clamped
portion 14B of thecomb body 14 of thetop comb 12 is formed thicker than the combteeth combining portion 14A, with the result that the secondary moment of area of thetop comb holder 11 is greater and the bending rigidity in the longitudinal direction of thetop comb holder 11 becomes greater, accordingly. As a result, the bending of thetop comb 12 in the longitudinal direction of thetop comb 12 during combing operation is suppressed. - The present embodiment has the following advantageous effects.
- (1) The
top comb device 10 of the comber has thetop comb holder 11 that is moveable in synchronization with thenipper frame 21 and thetop comb 12 that is detachably fixed to thetop comb holder 11. Thetop comb holder 11 has the U-shapedfixing support member 16 that clamps thetop comb 12 at the opposite sides thereof with thetop comb 12 across the thickness thereof. Therefore, the bending of thetop comb 12 in the longitudinal direction thereof is suppressed appropriately and, therefore, the combing may be accomplished successfully at an increased combing speed and for an increased production. - (2) The
top comb 12 is formed so that the clampedportion 14B clamped by the fixingsupport member 16 is thicker than the combteeth combining portion 14A and thethickness increasing portion 14C that extend from the clampedportion 14B toward thecomb teeth member 15. In thetop comb 12 having the thickened clampedportion 14B, the secondary moment of area of thetop comb holder 11 is larger than that of a comb holder which is formed with a constant thickness and therefore, the rigidity of thetop comb 12 against bending in the longitudinal direction of thetop comb holder 11 becomes larger. As s result, the bending of thetop comb 12 in the longitudinal direction thereof is suppressed during the combing operation. - (3) The U-shaped
fixing support member 16 has thefront wall portion 16A through which thehole 17 is formed for receiving therethrough thescrew 13 and therear wall portion 16B in which theinternal thread portion 18 is formed for receiving therein the end of the external thread portion13A of thescrew 13. In fixing thetop comb 12 to thetop comb holder 11, generally thetop comb 12 is fixed to the fixingsupport member 16 by thescrew 13 with thetop comb 12 clamped by the U-shapedfixing support member 16. Then, in order to prevent thetop comb device 10 from interfering with thetop nipper 24A, it is preferable that the protrusion of therear wall portion 16B of thetop comb holder 11 should be small. If thescrew 13 is disposed with its head located on therear wall portion 16B side, the protrusion of thetop comb holder 11 increases by the protrusion of the head of thescrew 13. However, in the configuration of thetop comb holder 11 in which the head of thescrew 13 is located on thefront wall portion 16A side, the protrusion of thetop comb holder 11 on therear wall portion 16B side is small enough to prevent the interference even if a portion of therear wall portion 16B is thickened so as to form theinternal thread portion 18 for receiving therein the end ofexternal thread portion 13A of thescrew 13. - The present invention is not limited to the above-described embodiment, but may be embodied in various manners as follows. It is noted that same reference numerals are used in the following description to denote parts or elements that are similar to the counterparts of the embodiment described above with reference to
FIGS. 1A, 1B, and 2 . As shown inFIG. 3 , in thetop comb 12, the clampedportion 14B clamped by the fixingsupport member 16 need not be thicker than the portion of thetop comb 12 extending from the clampedportion 14B to thecomb teeth member 15. - Additionally, as shown in
FIG. 3 , thetop comb holder 11 may be provided with a reinforcingmember 30 at a position adjacent to thefront wall portion 16A of thetop comb holder 11 as in the case of the above-cited European Patent Application Publication No.2085505 . As shown inFIG. 4A , the clampedportion 14B of thetop comb 12 clamped by the fixingsupport member 16 may be thicker than the portion of thetop comb 12 extending from the clampedportion 14B to thecomb teeth member 15. Additionally, the portion of thetop comb 12 extending from the fixingsupport member 16 toward thecomb teeth member 15 may be bent so that thecomb teeth member 15 extends in parallel to acontact surface 31 between therear wall portion 16B of the fixingsupport member 16 and the clampedportion 14B of thetop comb 12 at a position behind thecontact surface 31. According to the above-described configuration, the clampedportion 14B can be thicker. The secondary moment of area of thetop comb 12 according to the above-described configuration becomes larger than that of thetop comb 12 having a configuration in which a portion from the clampedportion 14B clamped by the fixingsupport member 16 of thetop comb 12 toward thecomb teeth member 15 extends straight, with the result that a portion adjacent to the top of thetop comb 12 is hard to be bent. - In the configuration of
FIG. 4B in which the portion of thetop comb 12 extending from the fixingsupport member 16 toward thecomb teeth member 15 is bent, therear wall portion 16B may be formed thinner than thefront wall portion 16A. Thescrew 13 may be disposed with the head thereof located on therear wall portion 16B side of thetop comb 12, as shown inFIG. 4B . Thetop comb 12 is clamped by the fixingsupport member 16 with the end of theexternal thread portion 13A of thescrew 13 engaged with theinternal thread portion 18 formed in thefront wall portion 16A. - In the configuration of
FIG. 4B in which the head of thescrew 13 is in contact with therear wall portion 16B, a recess may be formed in therear wall portion 16B for accommodating therein the head of thescrew 13 instead of thinning therear wall portion 16B. - The
internal thread portion 18 receiving the end of theexternal thread portion 13A of thescrew 13 may be provided in the form of a through hole or a blind hole in thefront wall portion 16A or therear wall portion 16B. - A bolt and a nut may be used instead of the
screw 13 as a means for detachably holding thetop comb holder 11 by thetop comb 12. If the clampedportion 14B of thetop comb 12 is formed thick, the clampedportion 14B of thetop comb 12 may be formed solid instead of being hollowed. - There is provided a top comb device of a comber, including a top comb holder that is moveable in synchronization with a nipper frame, and a top comb that is detachably fixed to the top comb holder. The top holder has a U-shaped fixing support member that clamps the top comb by engagement with the top comb at opposite sides thereof across thickness thereof.
Claims (4)
- A top comb device (10) of a comber, comprising:a top comb holder (11) that is moveable in synchronization with a nipper frame (21); anda top comb (12) that is detachably fixed to the top comb holder (11),characterized in thatthe top comb holder (11) has a U-shaped fixing support member (16) that clamps the top comb (12) by engagement with the top comb (12) at opposite sides thereof across thickness thereof.
- The top comb device (10) of the comber according to claim 1, wherein the top comb (12) has a clamped portion (14B) clamped by the fixing support member (16), a comb teeth member (15) and a portion (14A, 14C) that extends from the clamped portion (14B) toward the comb teeth member (15), and wherein the clamped portion (14B) is thicker than the portion (14A, 14C) that extends from the clamped portion (14B) toward the comb teeth member (15).
- The top comb device (10) of the comber according to claim 2, wherein the portion (14A) of the top comb (12) extending from the clamped portion (14B) toward the comb teeth member (15) is bent so that the comb teeth member (15) extends in parallel to a contact surface (31) between a rear wall portion (16B) of the fixing support member (16) and the clamped portion (14B) at a position behind the contact surface (31).
- The top comb device (10) of the comber according to any one of claims 1 through 3, wherein the U-shaped fixing support member (16) has a front wall portion (16A) through which a hole (17) is formed for receiving therefhrough a screw (13) and a rear wall portion (16B) in which an internal thread portion (18) is formed for receiving therein an external thread portion (13A) of the screw (13).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014060453A JP5999129B2 (en) | 2014-03-24 | 2014-03-24 | Comb top comb equipment |
Publications (3)
Publication Number | Publication Date |
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EP2924152A2 true EP2924152A2 (en) | 2015-09-30 |
EP2924152A3 EP2924152A3 (en) | 2016-03-16 |
EP2924152B1 EP2924152B1 (en) | 2017-08-30 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP15159558.4A Active EP2924152B1 (en) | 2014-03-24 | 2015-03-18 | Top comb device of comber |
Country Status (3)
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EP (1) | EP2924152B1 (en) |
JP (1) | JP5999129B2 (en) |
CN (1) | CN104947249B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN105442108B (en) * | 2015-12-24 | 2020-06-02 | 江苏凯宫机械股份有限公司 | Top comb plate for intelligent combing machine |
CN106222815B (en) * | 2016-09-23 | 2023-04-07 | 江苏凯宫机械股份有限公司 | Top comb insertion depth adjusting device of intelligent combing machine |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2085505A2 (en) | 2008-01-29 | 2009-08-05 | Maschinenfabrik Rieter Ag | Fixing comb of a comb machine |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS513218Y1 (en) * | 1969-06-24 | 1976-01-30 | ||
JPS5137109U (en) * | 1974-08-31 | 1976-03-19 | ||
CS199798B1 (en) * | 1979-03-23 | 1980-08-29 | Frantisek Barak | Endless hackling belt |
DE3336326A1 (en) * | 1983-10-06 | 1985-04-18 | Drei-S-Werk Präzisionswerkzeuge GmbH & Co Fertigungs-KG, 8540 Schwabach | NEEDLE HOLDER WITH NEEDLE STRIPES FOR TEXTILE MACHINES |
CN2066447U (en) * | 1990-05-19 | 1990-11-28 | 宁波市纺织机械部件厂 | Combing machine assembly type top comb strip |
DE4033262A1 (en) * | 1990-10-19 | 1992-04-23 | Staedtler & Uhl | PINSTRIPE STRAP |
DE19531605C2 (en) * | 1995-08-28 | 2001-07-19 | Graf & Co Ag | Fixed comb for a combing machine |
CH691480A5 (en) * | 1996-09-03 | 2001-07-31 | Rieter Ag Maschf | Pinstripe a textile machine. |
DE19951126A1 (en) * | 1999-10-23 | 2001-04-26 | Staedtler & Uhl | Fixed comb for sliver materials has the free projection of the needles at a set angle to the sliver movement plane for easy penetration through the comb needles with effective retention of debris |
DE102008019399A1 (en) * | 2008-04-14 | 2009-10-15 | Graf + Cie Ag | Fastening device for tooth elements on a component of a textile machine |
CN203741475U (en) * | 2014-01-17 | 2014-07-30 | 佛山市南海南方技术创新中心有限公司 | Top comb |
-
2014
- 2014-03-24 JP JP2014060453A patent/JP5999129B2/en active Active
-
2015
- 2015-03-18 EP EP15159558.4A patent/EP2924152B1/en active Active
- 2015-03-23 CN CN201510126913.2A patent/CN104947249B/en active Active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2085505A2 (en) | 2008-01-29 | 2009-08-05 | Maschinenfabrik Rieter Ag | Fixing comb of a comb machine |
Also Published As
Publication number | Publication date |
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CN104947249A (en) | 2015-09-30 |
CN104947249B (en) | 2018-01-02 |
JP2015183313A (en) | 2015-10-22 |
EP2924152B1 (en) | 2017-08-30 |
EP2924152A3 (en) | 2016-03-16 |
JP5999129B2 (en) | 2016-09-28 |
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