CN110670226B - Knitting cam system and flat knitting machine - Google Patents
Knitting cam system and flat knitting machine Download PDFInfo
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- CN110670226B CN110670226B CN201910935079.XA CN201910935079A CN110670226B CN 110670226 B CN110670226 B CN 110670226B CN 201910935079 A CN201910935079 A CN 201910935079A CN 110670226 B CN110670226 B CN 110670226B
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
- D04B15/32—Cam systems or assemblies for operating knitting instruments
- D04B15/36—Cam systems or assemblies for operating knitting instruments for flat-bed knitting machines
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Abstract
The invention relates to the technical field of textile, and discloses a knitting triangle system and a flat knitting machine. The knitting cam system comprises a cam base plate, a needle returning cam and a driving assembly. The needle return cam is positioned on the cam bottom plate and used for resetting the knitting needle. The driving component is positioned on the cam bottom plate and connected with the needle return cam and used for driving the needle return cam to act so as to enable the needle return cam to be used for resetting the knitting needle or canceling the knitting needle resetting function of the needle return cam. Through the mode, the service life of the flat knitting machine can be prolonged.
Description
Technical Field
The invention relates to the technical field of textile, in particular to a knitting triangle system and a flat knitting machine.
Background
In the current flat knitting machine, a needle return cam is used for returning a spring needle. In the knitting process of each row, the spring needle has unnecessary resetting action, and the reset spring needle needs the action of the needle selector, so that the spring needle can continuously participate in knitting, the unnecessary resetting of the spring needle leads to the increase of the working strength of the needle selector, and the service life of the needle selector is reduced; and unnecessary reset of the spring needle means that the spring needle moves more in the needle groove, the abrasion degree of the needle groove is increased, and the service life of the needle bed is shortened.
Disclosure of Invention
In view of this, the present invention provides a cam system and a flat knitting machine, which can prolong the service life of the flat knitting machine.
In order to solve the technical problems, the invention adopts a technical scheme that: a knitting cam system is provided, which comprises a cam base plate, a return cam and a driving component. The needle return cam is positioned on the cam bottom plate and used for resetting the knitting needle. The driving component is positioned on the cam bottom plate and connected with the needle return cam and used for driving the needle return cam to act so as to enable the needle return cam to be used for resetting the knitting needle or canceling the knitting needle resetting function of the needle return cam.
In one embodiment of the invention, one side surface of the needle returning cam is a resetting surface, and the resetting surface is used for contacting a stitch of a knitting needle so as to reset the knitting needle.
In an embodiment of the invention, the driving assembly comprises a telescopic driving piece, and the telescopic driving piece is connected with the needle return cam and is used for driving the needle return cam to move in a direction vertical to a cam bottom plate so as to enable the reset surface to be far away from a traveling path of a needle foot, thereby canceling a needle reset function of the needle return cam.
In an embodiment of the invention, at least part of the needle returning triangle including the resetting surface is a magnetic body, and the telescopic driving part comprises a guiding part and a control part; the guide piece is connected with the needle return cam and can move along the direction vertical to the cam base plate relative to the cam base plate, so that the needle return cam is guided to move in the direction vertical to the cam base plate; the control component is used for generating a magnetic field and acting on at least part of the backstitch triangle to drive the backstitch triangle to move in a direction vertical to the bottom plate of the triangle.
In an embodiment of the present invention, the retractable driving member is fixedly connected to the needle return cam, and the retractable driving member can move relative to the cam base plate and along a direction perpendicular to the cam base plate, so as to drive the needle return cam to move.
In an embodiment of the invention, the driving assembly comprises a turnover driving piece, and the turnover driving piece is connected with the needle return cam and is used for driving the needle return cam to turn over so as to enable the reset surface to be far away from a traveling path of a needle foot, thereby canceling a needle resetting function of the needle return cam.
In an embodiment of the invention, the driving assembly comprises a translation driving piece, and the translation driving piece is connected with the needle return cam and is used for driving the needle return cam to translate on the cam bottom plate so as to enable the reset surface to be far away from a traveling path of a needle foot, thereby canceling a needle resetting effect of the needle return cam.
In one embodiment of the invention, the parts of the needle return cams of the reset surface at the two ends of the travel path of the needle foot are chamfered.
In one embodiment of the invention, the knitting cam system comprises a plurality of knitting cams which are distributed on a cam base plate in an axisymmetric manner.
In order to solve the technical problem, the invention adopts another technical scheme that: there is provided a flat knitting machine including a knitting cam system as set forth in the above embodiments.
The invention has the beneficial effects that: different from the prior art, the invention provides a knitting cam system and a flat knitting machine, wherein a driving component of the knitting cam system can drive a needle return cam to act, so that the needle return cam is used for resetting a knitting needle or canceling the needle resetting function of the needle return cam. Therefore, when the needle return cam is required to reset the knitting needle, the driving assembly can drive the needle return cam to act so as to enable the needle return cam to be used for resetting the knitting needle; when the knitting needle does not need to reset, the driving component can drive the needle return cam to act so as to cancel the knitting needle resetting function of the needle return cam and further not reset the knitting needle. The mode of selectively resetting the knitting needle by the needle return cam replaces the mode that the knitting needle is forcibly reset every time the knitting needle passes through the needle return cam in the prior art, and avoids unnecessary resetting actions of the knitting needle, so that the unnecessary needle selection actions of the needle selector can be avoided, the working strength of the needle selector is reduced, the service life of the needle selector can be prolonged, and the service life of the flat knitting machine is further prolonged; and the reduction of the resetting and needle selection actions of the knitting needles means that the movement of the knitting needles in the needle grooves is reduced, and the abrasion degree of the needle grooves can be reduced, so that the service life of a needle bed is prolonged, and the service life of the flat knitting machine is further prolonged.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts. Wherein:
FIG. 1 is a schematic structural view of a first embodiment of a knitting cam system of the present invention;
FIG. 2 is a schematic side view of the knitting cam system of FIG. 1;
FIG. 3 is a schematic structural diagram of the present invention and the prior art return cam comparing the operation mechanism thereof with an embodiment;
FIG. 4 is a schematic structural diagram of an embodiment of the backstitch cam of the present invention;
FIG. 5 is a schematic side view of a second embodiment of a knitting cam system of the invention;
FIG. 6 is a schematic structural view of a third embodiment of a knitting cam system of the invention;
FIG. 7 is a schematic structural view of a fourth embodiment of a knitting cam system of the invention;
FIG. 8 is a schematic side view of the knitting cam system of FIG. 7;
FIG. 9 is a schematic structural view of a fifth embodiment of a knitting cam system of the invention;
fig. 10 is a schematic structural view of an embodiment of the flat knitting machine of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms "first", "second", and the like in the present invention are used for distinguishing different objects, not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
In order to solve the technical problem that a flat knitting machine in the prior art is short in service life, an embodiment of the invention provides a knitting cam system, which comprises a cam base plate, a needle returning cam and a driving assembly. The needle return cam is positioned on the cam bottom plate and used for resetting the knitting needle. The driving component is positioned on the cam bottom plate and connected with the needle return cam and used for driving the needle return cam to act so as to enable the needle return cam to be used for resetting the knitting needle or canceling the knitting needle resetting function of the needle return cam. As described in detail below.
In current flat knitting machines, a needle bed has a plurality of needle grooves and each needle groove has a corresponding knitting needle therein. The knitting needles in the needle grooves comprise needle selection, spring needles, long needles and the like, wherein the spring needles are arranged between the needle selection and the long needles. The needle selector executes a needle selection action to control the needle selection to move along the needle groove in the needle groove, drives the spring needle to move along the needle groove, further drives the long needle to move along the needle groove, and executes knitting operation, wherein the needle selector determines the needle output amount of the knitting needles such as the needle selection, the spring needle and the long needle, the needle output amount is defined as the movement amount of the current position of the knitting needle in the needle groove relative to the initial position, and different needle output amounts of the knitting needles are matched with other structures of the flat knitting machine to finish different knitting actions. After the needle selection drives the spring needle to move, the spring needle needs to be reset by means of a needle return cam, namely, the spring needle is driven to move along the direction opposite to the direction in which the needle selection drives the spring needle to move.
In the existing flat knitting machine, each spring needle passes through the needle return cam and is forcibly reset by the needle return cam, so that the reset spring needle needs the needle selector to perform needle selection again to drive the spring needle to discharge. In the knitting operation, the spring needle output quantity of the spring needle in the current row and the next row (the knitting process of a knitted product is generally designed to be performed row by row) is the same, in the case, the spring needle does not need to be reset, but the spring needle is limited by a mechanism that the return cam forces the spring needle to reset, even if the spring needle does not need to reset, the spring needle can still be forced to reset by the return cam when passing through the return cam, so that the spring needle has unnecessary resetting action, the working strength of the needle selector is increased, and the service life of the needle selector is reduced; and unnecessary reset of the spring needle means that the spring needle moves more in the needle groove (the spring needle moves in the needle groove in two processes of needle selection and reset of the needle selector), the abrasion degree of the needle groove is increased, and the service life of the needle bed is shortened. In addition, due to the mechanism that the needle returning triangle forces the spring needle to reset, the stroke of each row of the machine head must pass through the preselected needle position of the next row, and the spring needle which is forced to reset can be pushed to the knitting position again, so that the stroke of each row of the machine head is increased, and the knitting efficiency of the flat knitting machine is reduced.
In view of the above, an embodiment of the present invention provides a knitting cam system to solve the above technical problems in the prior art.
Referring to fig. 1-2, fig. 1 is a schematic structural view of a first embodiment of a knitting cam system of the present invention, and fig. 2 is a schematic structural view of a side view of the knitting cam system shown in fig. 1.
In one embodiment, the knitting cam system 1 includes a cam base 11, a return cam 12, and a drive assembly. The needle return cam 12 is located on the cam base 11 for needle return, for example, for returning the spring needle described above. The driving component is also positioned on the cam bottom plate 11 and connected with the needle return cam 12 and is used for driving the needle return cam 12 to act so as to enable the needle return cam 12 to be used for resetting the knitting needle or cancel the knitting needle resetting function of the needle return cam 12.
Therefore, the needle returning cam 12 can be selectively provided with a knitting needle resetting function by driving the needle returning cam 12 to act through the driving component. Obviously, when the needle return cam 12 is used for resetting the knitting needle, the needle return cam 12 has a knitting needle resetting function and can force the knitting needle to reset; when the needle resetting function of the needle returning cam 12 is cancelled, the needle returning cam 12 does not have the needle resetting function and cannot force the needle to reset.
By the mode, the reset action of the knitting needle of the needle return cam 12 can be cancelled at least under the condition that the needle output amounts of the knitting needles in the current row and the next row are the same, so that the knitting needles are not reset, the reset action of the knitting needles is reduced, and the corresponding needle selection actions of the knitting needles are correspondingly reduced, so that the needle selection actions of the needle selector are reduced, the working strength of the needle selector is reduced, the service life of the needle selector can be prolonged, and the service life of the flat knitting machine is further prolonged. And the reduction of the resetting and needle selection actions of the knitting needles means that the movement of the knitting needles in the needle grooves is reduced, and the abrasion degree of the needle grooves can be reduced, so that the service life of a needle bed is prolonged, and the service life of the flat knitting machine is further prolonged. In addition, because the knitting needles of the current row and the next row are not reset under the condition that the needle discharging amount of the knitting needles of the current row and the next row is the same, the machine head does not need to go through the lowest needle return position (the specific reason of which will be explained in detail below), the stroke of each row of the machine head can be reduced, about 2-5cm can be reduced, and the knitting efficiency of the flat knitting machine is further improved.
Please refer to fig. 3. If the needle return cam 12 in fig. 3 cannot selectively reset the knitting needle, the stitch of the knitting needle must move to a point a' along the track a under the condition that the needle delivery amounts of the current row and the next row of knitting needles are the same, the knitting needle is reset to the lowest needle return position by the needle return cam 12 after the needle return cam 12 is reset (corresponding to the condition that the head needs to pass through the lowest needle return position), the needle delivery amount of the knitting needle is controlled to the state before resetting by the needle selector, that is, the stitch of the knitting needle is controlled to be restored to the track height before resetting, and then the knitting operation of the next row can be executed again. In fig. 3, the reciprocating track of the knitting needle stitch is at the same track height, and the reciprocating track of the knitting needle stitch is divided into an upper part and a lower part in fig. 3 for the convenience of understanding. If the needle return cam 12 in fig. 3 can selectively reset the knitting needle, the stitch of the knitting needle moves to the point B' along the track B under the condition that the needle delivery amount of the knitting needle of the current row and the next row is the same, the needle return cam 12 cancels the resetting effect on the knitting needle, the knitting needle can return to perform the knitting operation of the next row before reaching the needle return cam 12, the knitting needle does not need to be reset to the lowest needle return position by the needle return cam 12, and the needle delivery amount of the knitting needle is controlled by the needle selector to be in the state before resetting. Comparing the above-mentioned trajectories a and B, it is apparent that the knitting needle can be returned earlier and the corresponding head can be returned earlier based on the working mechanism of the needle return cam 12 capable of selectively resetting the knitting needle, that is, the stroke of each row of the head is reduced, and the knitting efficiency of the flat knitting machine is improved.
Referring to fig. 4, fig. 4 is a schematic structural diagram of an embodiment of the clip cam of the present invention.
In one embodiment, one side of the needle returning cam 12 is a reset surface 121, the reset surface 121 is used for contacting a stitch of a knitting needle, and the stitch of the knitting needle abuts against the reset surface 121 and moves along the reset surface 121, so that the knitting needle is reset to different needle-out amounts.
For example, the reset surface 121 of the needle-returning triangle 12 includes a first portion 1211, a second portion 1212 and a third portion 1213, wherein the first portion 1211 is provided with a third portion 1213 at two sides thereof, and the first portion 1211 and the third portion 1213 are connected by the second portion 1212. The first portion 1211, the second portion 1212 and the third portion 1213 are used to reset the knitting needles to three different needle-out amounts, respectively. The first portion 1211 is for resetting the needle to the needle-out amount S1; the second portion 1212 is used to reset the needle to the needle-out amount S2; the third portion 1213 is used to reset the needle to the needle-out amount S3. Wherein S3> S2> S1. Needles with stitches in the third portion 1213, which are at maximum needle-out or gradually close to the second portion 1212; the first portion 1211 is able to reset the needle to the minimum needle withdrawal, i.e. S1 is equal to 0, i.e. the needle is completely reset by the first portion 1211 of the reset surface 121; and the second portion 1212 is interposed between the first portion 1211 and the third portion 1213. In general, the reset surface 121 is designed to reset the knitting needle to three different needle-out amounts, including a minimum needle-out amount, a maximum needle-out amount, and an intermediate needle-out amount (i.e., S2). The needle at the maximum needle-out amount can be considered as not reset.
Of course, the reset surface 121 of the needle returning cam 12 is not limited to the three portions, and may be composed of more or less different portions to reset the knitting needle to more or less different needle withdrawing amounts. The thickness and the shape of the backstitch cam 12 are not limited to those shown in fig. 4, and may be designed additionally as required, and are not limited herein.
Based on the principle that the needle return cam 12 resets the knitting needle, it can be understood that the needle return surface 121 of the needle return cam 12 can reset the knitting needle because the stitch of the knitting needle abuts against the reset surface 121 of the needle return cam 12. On the other hand, if the stitch of the knitting needle does not abut on the reset surface 121 of the needle return cam 12, the reset surface 121 of the needle return cam 12 cannot reset the knitting needle. Therefore, the needle can be selectively reset by controlling the reset surface 121 of the needle return cam 12 to abut against the stitch of the knitting needle as required, as will be described in detail below.
Please continue to refer to fig. 1-2. In one embodiment, the driving assembly includes a telescopic driving member 131, the telescopic driving member 131 is connected to the needle return cam 12 for moving the needle return cam 12 in a direction perpendicular to the cam base plate 11 (as shown by an arrow in fig. 2), i.e. in a telescopic action, so as to move the reset surface 121 away from the travel path 2 of the needle foot, i.e. so that the reset surface 121 is away from the needle foot, and the reset surface 121 is not in contact with the needle foot, i.e. the needle reset function of the needle return cam 12 is cancelled. The advancing path 2 of the needle stitch is a motion track of the needle stitch on the cam bottom plate 11 relative to the cam bottom plate 11.
Specifically, the retracting cam 12 can be driven by the telescopic driving member 131 to move in a direction perpendicular to the cam base plate 11. Therefore, when the needle return cam 12 needs to reset the knitting needle, the telescopic driving element 131 drives the needle return cam 12 to move in the direction perpendicular to the cam base plate 11 until the reset surface 121 of the needle return cam 12 is located on the traveling path 2 of the knitting needle stitch, which may be that the needle return cam 12 moves to be attached to the cam base plate 11, and the knitting needle stitch abuts against the reset surface 121 and moves along the reset surface 121 in the moving process relative to the cam base plate 11, so that the knitting needle can be reset; when the needle return cam 12 does not need to reset the knitting needle, the telescopic driving element 131 drives the needle return cam 12 to move in the direction perpendicular to the cam base plate 11 to the moving path 2 of the reset surface 121 of the needle return cam 12 away from the knitting needle stitch, which may be that the needle return cam 12 moves away from the cam base plate 11, and the reset surface 121 is not in contact with the knitting needle stitch, so that the knitting needle cannot be reset.
It should be noted that, because the needle-returning cam 12 moves in the direction perpendicular to the cam base plate 11 under the driving of the telescopic driving element 131, a sufficient distance needs to be kept between the cam base plate 11 and the needle bed to avoid the needle-returning cam 12 and avoid the needle-returning cam 12 from colliding with the needle bed.
Please continue to refer to fig. 1-2 and 4. In one embodiment, at least a portion of the needle-returning triangle 12 including the reset surface 121 is a magnetic body 122. The latch cam 12 may be a magnetic body 122 as a whole, or may be a local magnetic body 122. Fig. 1 and 4 show the lower half of the clip cam 12 being a magnetic body 122, which is only needed for discussion, and is not a limitation on the structural composition of the clip cam 12.
The telescopic driver 131 includes a guide 1311 and a control member 1312. The guide 1311 is connected to the needle cam 12 and can move in a direction perpendicular to the cam base 11 with respect to the cam base 11, thereby guiding the needle cam 12 to move in a direction perpendicular to the cam base 11. The control member 1312 is used for generating a magnetic field and acts on the above-mentioned at least part of the needle return cam 12 to drive the needle return cam 12 to move in a direction perpendicular to the cam base plate 11. The control member 1312 is mounted on the triangular bottom plate 11, and the control member 1312 is partially embedded in the triangular bottom plate 11. The magnetic body 122 on the needle-returning cam 12 may be an electromagnet, which may be electrically connected to the control member 1312, and when the magnetic body 122 on the needle-returning cam 12 and the control member 1312 are controlled to be magnetized, they are separated from each other, so as to drive the needle-returning cam 12 to move away from the cam bottom plate 11, and cancel the needle-returning effect of the needle-returning cam 12; when the magnetism of the magnetic body 122 on the needle return cam 12 and the magnetism of the control piece 1312 are controlled to be different, the two parts are close to each other, so that the needle return cam 12 is driven to move close to the cam base plate 11, even to be attached to the cam base plate 11, and the needle return cam 12 is used for resetting the knitting needle. Of course, the magnetic body 122 of the retracting cam 12 may be a permanent magnet, which is magnetized in advance to have magnetism, and the control member 1312 is controlled such that the magnetism of the control member 1312 is the same as or opposite to that of the magnetic body 122.
Please refer to fig. 5. In an alternative embodiment, the retractable driving member 131 may be a rod structure, the retractable driving member 131 can move relative to the triangular bottom plate 11 and along a direction perpendicular to the triangular bottom plate 11, and the retractable driving member 131 is fixedly connected to the needle retracting cam 12, and the retractable driving member 131 drives the needle retracting cam 12 to move along a direction perpendicular to the triangular bottom plate 11 (as shown by an arrow in fig. 5) during the movement process. The triangular bottom plate 11 may further be provided with a power device 132 such as a motor, the telescopic driving member 131 and the power device 132 may be respectively located at two opposite sides of the triangular bottom plate 11, and the power device 132 is connected to the telescopic driving member 131 to drive the telescopic driving member 131 to move in a direction perpendicular to the triangular bottom plate 11, so as to drive the clip cam 12 to move in a direction perpendicular to the triangular bottom plate 11.
Referring to fig. 6, fig. 6 is a schematic structural diagram of a knitting cam system according to a third embodiment of the present invention.
In one embodiment, the driving assembly comprises a reverse driving member 133, the reverse driving member 133 is connected to the needle return cam 12 and is used for driving the needle return cam 12 to reverse (as shown by an arrow in fig. 6) so as to make the reset surface 121 far away from the travel path 2 of the needle stitch, namely, the reset surface 121 is far away from the needle stitch, and the needle reset function of the needle return cam 12 is cancelled because the reset surface 121 is not in contact with the needle stitch.
Specifically, the needle-returning triangle 12 can be turned over by the turning driving member 133. Therefore, when the needle return cam 12 needs to reset the knitting needle, the reversing driving element 133 drives the needle return cam 12 to reverse until the reset surface 121 of the needle return cam 12 is located on the traveling path 2 of the knitting needle stitch, which may be that the reset surface 121 of the needle return cam 12 is perpendicular to the cam base plate 11, and the knitting needle stitch abuts against the reset surface 121 and moves along the reset surface 121 in the movement process relative to the cam base plate 11, so that the knitting needle can be reset; when the needle return cam 12 does not need to reset the knitting needle, the reversing driving piece 133 drives the needle return cam 12 to reverse until the reset surface 121 of the needle return cam 12 is far away from the advancing path 2 of the knitting needle stitch, and the reset surface 121 is not in contact with the knitting needle stitch, so that the knitting needle cannot be reset.
It should be noted that, since the needle-return cam 12 is driven by the reversing drive unit 133 to perform the reversing operation, a sufficient distance needs to be maintained between the cam base plate 11 and the needle bed, and the cam structures on the cam base plate 11 except the needle-return cam 12 are designed to be appropriately retracted so as to retract the needle-return cam 12.
Referring to fig. 7-8, fig. 7 is a schematic structural view of a fourth embodiment of the knitting cam system of the present invention, and fig. 8 is a schematic structural view of a side view of the knitting cam system shown in fig. 7.
In one embodiment, the driving assembly comprises a translational driving member 134, the translational driving member 134 is connected to the needle return cam 12 and is used for driving the needle return cam 12 to translate on the cam base plate 11, the translation direction is shown by arrows in fig. 7-8, so that the reset surface 121 is far away from the travel path 2 of the needle stitch, namely, the reset surface 121 is far away from the needle stitch, and the needle reset function of the needle return cam 12 is cancelled, namely, the reset surface 121 is not in contact with the needle stitch.
Specifically, the translation driving member 134 can drive the needle return cam 12 to translate on the cam base plate 11. Therefore, when the needle return cam 12 needs to reset the knitting needle, the translational driving piece 134 drives the needle return cam 12 to translate on the cam base plate 11 until the reset surface 121 of the needle return cam 12 is positioned on the advancing path 2 of the knitting needle stitch, and the knitting needle stitch abuts against the reset surface 121 and moves along the reset surface 121 in the motion process relative to the cam base plate 11, so that the knitting needle can be reset; when the needle return cam 12 does not need to reset the knitting needle, the translation driving piece 134 drives the needle return cam 12 to translate on the cam bottom plate 11 until the reset surface 121 of the needle return cam 12 is far away from the advancing path 2 of the knitting needle stitch, and the reset surface 121 is not in contact with the knitting needle stitch, so that the knitting needle cannot be reset.
For example, the translational driving element 134 may be connected to the needle return cam 12 through a rod 1341, and the cam base plate 11 is provided with a strip-shaped through hole 1342 extending along a direction away from and close to the moving path 2 of the knitting needle, the rod 1341 passes through the strip-shaped through hole 1342 and is connected to the needle return cam 12, the rod 1341 moves in the strip-shaped through hole 1342 along the direction away from or close to the moving path 2 of the knitting needle, and then the needle return cam 12 is driven to translate along the direction away from or close to the moving path 2 of the knitting needle.
It should be noted that, because the needle-returning cam 12 is driven by the translation driving member 134 to move in a translation manner along the cam base plate 11, the cam structures on the cam base plate 11 except the needle-returning cam 12 are designed to be appropriately retracted, so as to provide enough translation space for the needle-returning cam 12 on the cam base plate 11 to retract the needle-returning cam 12, thereby avoiding collision.
Please continue to refer to fig. 4. In one embodiment, the parts of the needle return cam 12 where the reset surface 121 of the needle return cam 12 is located at both ends of the needle stitch advancing path 2 are designed to be chamfered, so that the needle stitch can smoothly move onto the reset surface 121 and move along the reset surface 121 when just contacting the needle return cam 12.
Referring to fig. 9, fig. 9 is a schematic structural view of a fifth embodiment of the knitting cam system of the present invention.
In one embodiment, the knitting cam system 1 includes a plurality of knitting cams 12, and the plurality of knitting cams 12 are distributed on the cam base 11 in an axisymmetric manner, i.e., the plurality of knitting cams 12 are symmetrically distributed on both sides of an axis as a symmetry axis.
Fig. 9 shows that the knitting cam system 1 comprises three return cams 12, including two return cams 12 on both sides and one return cam 12 in the middle. The symmetry axis 123 passes through the needle return cam 12 located in the middle, and the needle return cam 12 located in the middle is a symmetrical structure with the symmetry axis 123 as a symmetry axis. The needle-back cams 12 distributed in axial symmetry are more beneficial to the design of the needle-back cams 12 in the knitting cam system 1 and the needle-out control of corresponding knitting needles.
In summary, the driving assembly of the knitting cam system provided by the invention can drive the needle return cam to act, so that the needle return cam is used for resetting the knitting needle or canceling the needle resetting function of the needle return cam. Therefore, when the needle return cam is required to reset the knitting needle, the driving assembly can drive the needle return cam to act so as to enable the needle return cam to be used for resetting the knitting needle; when the knitting needle does not need to reset, the driving component can drive the needle return cam to act so as to cancel the knitting needle resetting function of the needle return cam and further not reset the knitting needle. The mode of selectively resetting the knitting needle by the needle return cam replaces the mode that the knitting needle is forcibly reset every time the knitting needle passes through the needle return cam in the prior art, and avoids unnecessary resetting actions of the knitting needle, so that the unnecessary needle selection actions of the needle selector can be avoided, the working strength of the needle selector is reduced, the service life of the needle selector can be prolonged, and the service life of the flat knitting machine is further prolonged; and the reduction of the resetting and needle selection actions of the knitting needles means that the movement of the knitting needles in the needle grooves is reduced, and the abrasion degree of the needle grooves can be reduced, so that the service life of a needle bed is prolonged, and the service life of the flat knitting machine is further prolonged.
Referring to fig. 10, fig. 10 is a schematic structural diagram of the flat knitting machine according to an embodiment of the present invention.
In one embodiment, the flat knitting machine 3 comprises a knitting cam system 1, wherein the knitting cam system 1 has been described in detail in the above embodiments, and will not be described herein.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (7)
1. A knitting cam system, comprising:
a triangular bottom plate;
the needle return cam is positioned on the cam bottom plate, one side surface of the needle return cam is a reset surface, the reset surface is used for contacting pins of the spring needle, and the reset surface comprises a first part, a second part and a third part which are different, so that the spring needle is reset to different needle output amounts;
the parts of the needle returning triangles, at which the two ends of the reset surface on the advancing path of the spring needle pins are located, are chamfers, so that the spring needle pins can smoothly move to the reset surface;
the driving assembly comprises a turnover driving piece, the turnover driving piece is located on the triangular bottom plate and connected with the needle return triangle and used for driving the needle return triangle to act, so that the needle return triangle is used for resetting the spring needle or canceling the needle return action of the needle return triangle under the condition that the needle outlet amount of the current line is the same as that of the next line.
2. The knitting cam system of claim 1, wherein said driving assembly includes a retractable driving member connected to said needle cam for moving said needle cam in a direction perpendicular to said cam base plate to move said reset surface away from a path of travel of said needle foot, thereby canceling a needle return action of said needle cam.
3. The knitting cam system of claim 2, wherein at least a portion of said purl cam including said reset surface is a magnetic body, said telescoping drive member includes a guide member and a control member;
the guide piece is connected with the needle returning triangle and can move along the direction vertical to the triangle bottom plate relative to the triangle bottom plate, so that the needle returning triangle is guided to move along the direction vertical to the triangle bottom plate;
the control part is used for generating a magnetic field and acting on at least part of the needle return triangle so as to drive the needle return triangle to move in a direction perpendicular to the triangle bottom plate.
4. The knitting cam system of claim 2, wherein said retractable driving member is fixedly connected to said needle return cam, and said retractable driving member is capable of moving relative to said cam base plate and in a direction perpendicular to said cam base plate, thereby moving said needle return cam.
5. The knitting cam system of claim 1, wherein said driving assembly includes a translational driving member connected to said needle cam for driving said needle cam to translate on said cam base plate to move said reset surface away from the path of travel of said needle foot, thereby canceling the needle return action of said needle cam.
6. The knitting cam system of claim 1, wherein said knitting cam system includes a plurality of said return cams, said plurality of return cams being axisymmetrically distributed on said cam base.
7. A flat knitting machine characterized in that it comprises a knitting cam system according to any of claims 1 to 6.
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| CN201910935079.XA CN110670226B (en) | 2019-09-29 | 2019-09-29 | Knitting cam system and flat knitting machine |
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| CN201910935079.XA CN110670226B (en) | 2019-09-29 | 2019-09-29 | Knitting cam system and flat knitting machine |
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Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT8122075V0 (en) * | 1980-06-16 | 1981-06-12 | Steiger Sa Atelier Constr | CAM-HOLDER FOR KNITWEAR MACHINE. |
| CN101476204A (en) * | 2009-01-15 | 2009-07-08 | 浙江虎王数控科技有限公司 | Knitting cam system of electric control automatic flat-knitting machine |
| CN101634083A (en) * | 2008-07-25 | 2010-01-27 | H.斯托尔两合公司 | Cam device of flat knitting machine |
| CN101985789A (en) * | 2010-08-25 | 2011-03-16 | 浙江巨福科技有限公司 | Triangle bottom plate of full-automatic computerized flat knitting machine |
| CN102021734A (en) * | 2010-12-29 | 2011-04-20 | 宁波慈星股份有限公司 | Weaving triangle structure of computer flat machine |
| CN202007305U (en) * | 2011-02-24 | 2011-10-12 | 杨志文 | Novel weaving cam system of flat knitting machine |
| CN102383257A (en) * | 2011-10-17 | 2012-03-21 | 徐贵丰 | Triangular plate of multi-section needle-selection computer jacquard flat knitting machine |
| CN102560858A (en) * | 2012-01-30 | 2012-07-11 | 江苏金龙科技股份有限公司 | Needling resetting mechanism of computerized flat knitting machine |
| CN202369749U (en) * | 2011-12-26 | 2012-08-08 | 宁波慈星股份有限公司 | Intermediate retaining Hushan of flat knitting machine |
| CN202482582U (en) * | 2012-04-05 | 2012-10-10 | 宁波慈星股份有限公司 | Needle selection device of flat knitting machine |
| CN202688617U (en) * | 2012-07-19 | 2013-01-23 | 宁波慈星股份有限公司 | Back stitching structure for flat knitting machine |
| CN203307561U (en) * | 2013-06-25 | 2013-11-27 | 宁波慈星股份有限公司 | Back-stitching triangle of flat knitting machine |
| CN103710840A (en) * | 2012-10-09 | 2014-04-09 | 汕头市连兴实业有限公司 | Center back cam of computerized flat knitting machine |
| CN209227168U (en) * | 2018-11-06 | 2019-08-09 | 吴孝国 | A kind of cross machine knitting triangle and the driving device with the knitting cam |
-
2019
- 2019-09-29 CN CN201910935079.XA patent/CN110670226B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT8122075V0 (en) * | 1980-06-16 | 1981-06-12 | Steiger Sa Atelier Constr | CAM-HOLDER FOR KNITWEAR MACHINE. |
| US4413482A (en) * | 1980-06-16 | 1983-11-08 | Atelier De Construction Steiger S.A. | Cam-support for a knitting machine |
| CN101634083A (en) * | 2008-07-25 | 2010-01-27 | H.斯托尔两合公司 | Cam device of flat knitting machine |
| CN101476204A (en) * | 2009-01-15 | 2009-07-08 | 浙江虎王数控科技有限公司 | Knitting cam system of electric control automatic flat-knitting machine |
| CN101985789A (en) * | 2010-08-25 | 2011-03-16 | 浙江巨福科技有限公司 | Triangle bottom plate of full-automatic computerized flat knitting machine |
| CN102021734A (en) * | 2010-12-29 | 2011-04-20 | 宁波慈星股份有限公司 | Weaving triangle structure of computer flat machine |
| CN202007305U (en) * | 2011-02-24 | 2011-10-12 | 杨志文 | Novel weaving cam system of flat knitting machine |
| CN102383257A (en) * | 2011-10-17 | 2012-03-21 | 徐贵丰 | Triangular plate of multi-section needle-selection computer jacquard flat knitting machine |
| CN202369749U (en) * | 2011-12-26 | 2012-08-08 | 宁波慈星股份有限公司 | Intermediate retaining Hushan of flat knitting machine |
| CN102560858A (en) * | 2012-01-30 | 2012-07-11 | 江苏金龙科技股份有限公司 | Needling resetting mechanism of computerized flat knitting machine |
| CN202482582U (en) * | 2012-04-05 | 2012-10-10 | 宁波慈星股份有限公司 | Needle selection device of flat knitting machine |
| CN202688617U (en) * | 2012-07-19 | 2013-01-23 | 宁波慈星股份有限公司 | Back stitching structure for flat knitting machine |
| CN103710840A (en) * | 2012-10-09 | 2014-04-09 | 汕头市连兴实业有限公司 | Center back cam of computerized flat knitting machine |
| CN203307561U (en) * | 2013-06-25 | 2013-11-27 | 宁波慈星股份有限公司 | Back-stitching triangle of flat knitting machine |
| CN209227168U (en) * | 2018-11-06 | 2019-08-09 | 吴孝国 | A kind of cross machine knitting triangle and the driving device with the knitting cam |
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|---|---|
| CN110670226A (en) | 2020-01-10 |
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