JP2022060095A - Flat-knitting machine - Google Patents

Abstract

To provide a flat-knitting machine that allows the number of selectable formation operations to be increased and formation efficiency during mixed formation operations to be improved.SOLUTION: An inlet side needle selection mechanism 11 acts on a selector 7 of a knitting needle 3 to guide it to a path 7A or a path 7H, and selects the knitting needle 3 to be subjected to action of a cam system 2 from the beginning so that a selection butt 6b of a select jack 6 is any one of A position 6bA, H position 6bH, or B position 6bB. An intermediate needle selection mechanism 12 can select the select jack 6 of the knitting needle 3 subjected to the action of the cam system 2 so as to be new F position 6bF provided on a needle bed gap side of A position. Selection of F position can add different-stitch density or split knit as a formation operation.SELECTED DRAWING: Figure 1

Description

The present invention relates to a flat knitting machine provided on a carriage that reciprocates in the longitudinal direction of a needle bed and has a needle selection mechanism for selecting a knitting needle that causes the knitting needle to perform a knitting operation.

Conventionally, a carriage that reciprocates in the longitudinal direction of a needle bed is equipped with a cam system that drives a knitting needle to perform a knitting operation and a needle selection mechanism for selecting a knitting needle to be driven. At least a pair of front and rear needle beds are provided so as to face each other across the tooth opening. The knitting needle is accommodated in a plurality of needle grooves arranged side by side at a constant pitch along the longitudinal direction of the needle bed, slides in the needle groove, and is driven in a direction of advancing and retreating with respect to the tooth opening. The selection of the knitting needle is reflected in the protruding state from the needle groove of the bat provided in the knitting needle. The basic knitting operation of the knitting needle is three types of knit, tack, and mistake, and the needle selection mechanism is based on distinguishing these three types and selecting the target knitting needle on the entrance side of the cam system (for example). See Patent Documents 1, 2 and 3).

The knitting needle has a hook for forming a stitch at the tip on the tooth opening side, and has a selector and a select jack on the tail side away from the tooth opening to receive selection by the needle selection mechanism. The selector receives two selections and drives the select jack to guide the select jack to three positions, for example, the B position, the H position, and the A position. In Patent Document 1, the selector is selected by the presence or absence of pressing on the selection bat provided on the selector. In Patent Documents 2 and 3, the selector is selected depending on whether or not the selector is released from the state of being magnetically adsorbed. In Patent Documents 1 and 2, the select jack is guided to the B position by the first non-selection, the H position by the first selection and the second non-selection, and the A position by the selection both times. Patent Document 3 guides the user to the A position by selecting the first stage, the H position by selecting the first stage and the non-selection of the second stage, and the B position by selecting both stages. Upon receiving the guidance, the select jack receives the pressure from the pressers arranged in each orbit to the bat. The presser is based on placing the one corresponding to the knit, tack and mistake in the trajectory of the bat corresponding to the A position, the H position and the B position, respectively. The knitting needle differs from the basic knitting operation by providing a new drive path to guide the knitting needle in the cam system, making part or all of the presser movable, and keeping the action on the bat in the intermediate stage. It is also possible to drive it to operate.

International Publication No. 2007-074944 Japanese Unexamined Patent Publication No. 09-241952 Japanese Unexamined Patent Publication No. 2013-64207

Simply selecting the knitting needles in three positions with the conventional needle selection mechanism causes a numerical limit to the knitting operations that can be mixed. For example, if a height difference is provided on the retracting cam surface of the mountain cam so that the knitting needle is retracted from the tooth opening by the cam system, and the protrusion amount of the bat provided on the knitting needle is switched according to the height difference. It is possible to switch the size of the stitch to be formed by switching the pulling amount to the knitting needle that has been fed by the hook at the tooth opening. In addition, when forming stitches, instead of knocking over the old loop, it is possible to move to the hook of the knitting needles on the opposite needle bed to form a widening stitch by partially changing the cam system and presser. Become. However, it is not possible to mix any of these movements with the three basic movements due to the lack of selectable positions.

If the needle selection mechanism enables selection of four or more positions, it is possible to mix other movements with the three basic movements. However, such a needle selection mechanism becomes large in the left-right direction, which is the traveling direction of the carriage, and in the front-rear direction, which is the advancing / retreating direction of the knitting needle. When the needle selection mechanism becomes large, the carriage to be mounted also becomes large, and the traveling stroke in the longitudinal direction of the needle bed also becomes large. When the traveling stroke of the carriage becomes large, if the traveling speed is the same, it takes time to travel, and the knitting efficiency is lowered. Even if many types of operations can be selected by switching the cam system or presser without increasing the number of selections in the needle selection mechanism, the carriage temporarily stops running before and after switching, and nothing is done in the opposite direction. It is necessary to kick back after running. Kicking back of the carriage also reduces the knitting efficiency.

An object of the present invention is to provide a flat knitting machine capable of increasing the number of selectable knitting operations and improving the knitting efficiency when the knitting operations are mixed.

The present invention is a needle bed provided with at least a pair of front and rear needle beds so as to face each other across the tooth opening.
Multiple knitting needles, each housed in a plurality of needle grooves arranged side by side at a constant pitch along the longitudinal direction of the needle bed.
Carriage that reciprocates in the longitudinal direction of the needle bed,
It is equipped with a cam system mounted on the carriage to drive the knitting needle in the direction of advancing and retreating to the tooth opening to perform the knitting operation, and a needle selection mechanism mounted on the carriage to select the knitting needle to perform the knitting operation.
The knitting needle is
It has a selection butt that is affected by the cam system, and guides to different positions including the B position at the base position, the H position at the intermediate position set in the direction of advancing toward the tooth opening rather than the B position, and the A position at the advancing position. The select jack, which can make the knitting operation of the knitting needle different by the difference in the pressure from the cam system that the selection bat receives at each position,
Depending on the selection state of the knitting needle in the needle selection mechanism, it is driven to pass through either the basal path when the knitting needle is not selected, the intermediate path when the knitting needle is selected, or the advance path, and the intermediate path or Includes a selector that can engage with the select jack and guide the select jack to the H or A position, respectively, through any of the advance routes.
The needle selection mechanism includes a selector drive cam that moves the selector along a preset path and drives it to guide the select jack via engagement.
In a flat knitting machine
On the entry side to the cam system, the entry side needle selection mechanism that selects the knitting needle for the first half of the knitting operation in which the knitting needle advances to the tooth opening,
In the middle of the cam system, an intermediate needle selection mechanism that selects the knitting needle for the latter half of the knitting operation in which the knitting needle exits the tooth opening,
It also includes a select jack or a pressing cam that can press the selector in the direction of sinking into the stylus groove.
Engagement between the selector and the select jack is a pressing cam between the first stage in which the select jack in the B position and the selector are engaged and the second stage in which the select jack in the H position or the A position is engaged with the selector. Switched by pressing with
The flat knitting machine is characterized in that the intermediate needle selection mechanism is provided with a forward position in the direction of advancing to the tooth opening rather than the A position as a position where the select jack is guided by the engagement in the second stage.

Further, in the present invention, the pressing cam is provided on the entry-side needle selection mechanism to press the selection butt of the select jack.
The select jack has an overhanging portion that overhangs to the rear end side at the base portion of the rear end that is in the direction of exiting from the tooth opening with the selection bat.
In the selector, the tip portion in the direction of advancing to the tooth opening engages with the rear end of the selection butt of the select jack that sinks into the needle groove due to the pressing by the pressing cam in the first step, and overhangs in the second step. Engage with the rear end of the part,
It is characterized by that.

Further, in the present invention, the pressing cam is provided in the intermediate needle selection mechanism and presses the rear end of the selector in the direction of exiting from the tooth opening.
The select jack has a protrusion at the rear end that protrudes in the needle groove in a shallow direction.
The selector has a protrusion protruding in a deeper direction in the needle groove at the rear end in the direction of exiting from the tooth opening, and the tip portion in the direction of advancing to the tooth opening is a select jack in the first step. Engages with the rear end of the selection bat, and in the second step, the protrusion that sinks into the needle groove due to pressing by the pressing cam engages with the protrusion of the select jack.
It is characterized by that.

Further, in the present invention, the entry-side needle selection mechanism and the intermediate needle selection mechanism include a suction actuator that can release the state of attracting the selector by magnetic force at a plurality of positions in response to the selection.
The selector drive cam drives the selector so as to guide the selector to a different path depending on the position where the suction by the suction actuator is released.
It is characterized by that.

Further, in the present invention, the latter half portion of the knitting operation includes a misaligned knitting operation in which the pull-in amount by the degree mountain cam provided in the cam system for retracting the knitting needle from the tooth opening is different. do.

According to the present invention, since the needle selection is performed by using the selector and the select jack, a basic combination having a proven record of use can be used. In contrast to the knitting needle that is selected by the entry-side needle selection mechanism and is driven by the cam system, the intermediate needle selection mechanism provided in the middle of the cam system has the engagement point between the selector and the select jack as the first in the entry-side needle selection mechanism. It is switched from the stage to the second stage, and it is possible to add the selection of the knitting operation. The entry-side needle selection mechanism and the intermediate needle selection mechanism increase the number of knitting operations that can be selected in one carriage run, and improve the knitting efficiency when basic knitting operations and other knitting operations are mixed. be able to.

Further, according to the present invention, the engagement between the selector and the select jack can be switched in two steps by pressing the select jack with the pressing cam. The tip of the selector engages with the rear end of the selection butt of the select jack in the first stage and engages with the rear end of the overhanging part in the second stage, so the engagement part of the selector should be common. Can be done.

Further, according to the present invention, the engagement between the selector and the select jack can be switched in two stages by pressing the selector with the pressing cam. The combination of the engagement points of the selector and the select jack can be switched between the first stage and the second stage.

Further, according to the present invention, the entry-side needle selection mechanism and the intermediate needle selection mechanism can avoid increasing in size in the left-right direction.

Further, according to the present invention, the intermediate needle selection mechanism can mix the wrong knitting operation with the pulling of the knitting needle by the degree mountain cam.

FIG. 1 shows a simplified cam arrangement diagram showing a schematic configuration of a flat knitting machine 1 including a cam system 2 and a needle selection mechanism 10 and a partial knitting needle 3 to be controlled as the first embodiment of the present invention. It is a side view. FIG. 2 is a partial cam arrangement diagram of the cam system 2 including the configuration of the entry-side needle selection mechanism 11 and the intermediate needle selection mechanism 12 of FIG. FIG. 3 is a partial side view showing an engaging portion for moving the select jack 6 by the selector 7, which is switched by the pressing cam 15 of FIG. FIG. 4 is a partial side view showing the positional relationship between the selector 7 and the select jack 6 in the entry-side needle selection mechanism 11. FIG. 5 is a partial side view showing the positional relationship between the selector 7 and the select jack 6 in the intermediate needle selection mechanism 12. FIG. 6 is a partial side view showing an engaging portion for moving the select jack 46 by the selector 47, which is switched in the second embodiment of the present invention. FIG. 7 is a partial side view showing the positional relationship between the selector 47 and the select jack 46, including two-step switching of the engagement portion.

Hereinafter, FIGS. 1 to 5 relate to the configuration of the needle selection mechanism 10 of the flat knitting machine 1 according to the first embodiment of the present invention. In FIGS. 1 and 2, the planes shown by crossing the diagonal lines indicate that they are inclined planes. 6 and 7 schematically show the guidance operation of the select jack 6 by the selector 7 in the second embodiment of the present invention. Corresponding parts in each figure are indicated with the same reference numerals, and duplicate explanations may be omitted. Further, for convenience of explanation, parts not described in the figure to be explained may be referred to with reference marks described in other figures.

FIG. 1 shows a schematic configuration of a flat knitting machine 1 provided with a cam system 2 and a needle selection mechanism 10 as a first embodiment of the present invention. The following description also refers to those omitted from the illustration for brevity. The cam system 2 is mounted on a carriage that reciprocates along the longitudinal direction of the needle bed of the flat knitting machine. At least a pair of needle beds are provided so as to face each other across the tooth opening. Each needle bed has a needle groove extending in the anteroposterior direction to advance and retreat to the tooth opening. The needle grooves are arranged side by side in the left-right direction, which is the longitudinal direction of the needle bed. The knitting needle 3 is housed in each needle groove so as to be slidable in the front-rear direction, and includes a needle jack 4, a slider 5, a select jack 6 and a selector 7. The knitting needle 3 is a composite needle, and is connected to a needle body having a hook at the tip on the front end side (not shown) of the needle jack 4. The slider 5 also has a blade on the front end side (not shown) that opens and closes the hook and is divided into two pieces so as to be able to advance beyond the hook to the tooth opening. The needle jack 4, the slider 5, and the select jack 6 each have bats 4b, 5b and selection bats 6b for being controlled by mechanical action. The selector 7 has a contact pole 7a for receiving control by magnetic action, and engages with the select jack 6 at the tip portion 7b. The selector 7 also has a drive butt 7c and a lower bat 7d as described below.

The needle selection mechanism 10 and the cam system 2 have bidirectionality so that the same operation can be symmetrically performed even when the carriage reciprocates left and right. The following description assumes that the carriage moves to the left of the figure with respect to the needle bed. The needle selection mechanism 10 has an entry side needle selection mechanism 11, an intermediate needle selection mechanism 12, and an exit side needle selection mechanism 13 with respect to the cam system 2. When the traveling direction of the carriage is to the right, the exit side needle selection mechanism 13 becomes the entry side, and the entry side needle selection mechanism 11 becomes the exit side. The entry-side needle selection mechanism 11 acts on the selector 7 of the knitting needle 3 to select one of the paths 7A, 7H, and 7B. When the paths 7A and 7H are selected, the selector 7 generates a movement stroke toward the tooth opening side. The select jack 6 receives a moving stroke from the selector 7 at the engaging portion and moves to the position on the tooth opening side. The knitting needle 3 to be subject to the action of the cam system 2 from the entry side is the selector 7 selected for the path 7A or the path 7H so that the selection butt 6b of the select jack 6 becomes the A position 6bA or the H position 6bH. Each will be guided. However, the entry-side needle selection mechanism 11 has a pressing cam 15. Since the pressing cam 15 presses the selection butt 6b and sinks the select jack 6 in the needle groove by about half, the tip portion 7b of the selector 7 is the rear end of the selection butt 6b of the select jack 6 in a state of being sunk by about half. Engage in. The intermediate needle selection mechanism 12 acts on the selector 7 of the knitting needle 3 to select any of the paths 7A, 7H, and 7B, which is the same as the entry side needle selection mechanism 11. However, the pressing cam 15 is not provided, and the select jack 6 is levitated and the selector 7 of the select jack 6 is inactive even if the trailing A presser 31b and the trailing H presser 32b are not provided. The engagement portion with the tip portion 7b of the above is switched to the rear end of the overhanging portion 6c. By switching the engagement point, the select jack 6 of the knitting needle 3 under the action of the cam system 2 can be guided to move to the position on the tooth opening side rather than the guidance by the entry side needle selection mechanism 11. In particular, it is possible to guide to a new F position 6bF provided as a forward position on the tooth opening side of the A position. The exit side needle selection mechanism 13 does not perform a needle selection operation for receiving the action of the cam system 2. Vertical lines with reference numerals a, b and c, d with respect to the entry-side needle selection mechanism 11 and the intermediate needle selection mechanism 12 indicate the phases corresponding to the positional relationships described with reference to FIGS. 4 and 5, respectively. The needle selection mechanism 10 also has a return unit 16 for returning the select jack 6 to the B position, and a return cam 17 for returning the selector 7 to the path 7B.

The cam system 2 includes a needle lasing cam 20, a degree mountain cam 21, and a Tianshan cam 22. A path 4bA corresponding to the knitting operation of the butt 4b of the needle jack 4 is provided between the needle lasing cam 20 and the Tianshan cam 22. Although the cam system 2 also has a slider cam acting on the butt 5b of the slider 5 on the tooth opening side of the Tianshan cam 22, the illustration is omitted. Paths 4bH and 4bB that cross a position lower than the top of the needle lasing cam 20 correspond to a tack or miss knitting operation, respectively. The degree cam 21 has a degree-determining cam surface 21b in which the pull-in amount is small when the cam height is high and a degree-determining cam surface 21a in which the cam height is low and the pull-in amount is large in the latter half of the pull-in cam surface. However, if the protrusion amount of the bat 4b is different, the operation of different knitting is possible. The intermediate needle selection mechanism 12 selects whether the select jack 6 continues the A position or shifts from the A position to the F position. It is possible to switch between 4bA and 4bA. The switching of the route of such formation is performed by the presser group 30 acting on the selection bat 6b of the select jack 6. Since the entry-side needle selection mechanism 11 can select whether to continue the B position or shift to the H or A position with respect to the select jack 6, the intermediate needle selection mechanism 12 also has the B position select jack 6. On the other hand, the B, H or A position can be selected in the same manner. When the H position is selected by the entry side needle selection mechanism 11, the H, A or F position can be selected by the intermediate needle selection mechanism 12. When the A position is selected by the entry-side needle selection mechanism 11, the intermediate needle selection mechanism 12 can select the A or F position. However, a fixed B presser 33 is provided at the B position, as described later, which presses the selection bat 6b so that the select jack 6 sinks deeply into the needle groove. Although it is not preferable to change the position during pressing with the B presser 33, the amount of protrusion may be reduced.

FIG. 2 shows a partial configuration of the cam system 2 including the configuration of the entry-side needle selection mechanism 11 and the intermediate needle selection mechanism 12 of FIG. The entry-side needle selection mechanism 11 and the intermediate needle selection mechanism 12 of FIG. 1 include suction actuators 11a and 12a and selector drive cams 11b and 12b, respectively. The suction actuators 11a and 12a are the release positions α and β provided before and after the phases a and c, and as in Patent Document 2, the suction actuators 11a and 12a are in a state of magnetically attracting the tangent 7a of the selector 7 and release the suction upon selection. It is possible to switch between the states to be used. Similar to Patent Document 3, the selector drive cam 11b of the entry-side needle selection mechanism 11 transfers the drive butt 7c of the selector 7 in a state where suction by the suction actuator 11a is released to the preset paths 7A, 7H, 7B. Move along and move the select jack 6 to three positions through the engagement points. Route 7B corresponds to the base position, and routes 7H and 7A correspond to the selected position. The selector drive cam 12b of the intermediate needle selection mechanism 12 also moves the drive butt 7c in the state where the suction by the suction actuator 12a is released along the paths 7A, 7H, 7B, but the movement of the select jack 6 is engaged. By switching the location, it is possible to add to the movement by the entry side needle selection mechanism 11. Therefore, the select jack 6 can be provided with the above-mentioned F position. The return cam 17 has a cam surface 17a that acts on the lowering butt 7d of the selector 7 and returns to the path 7B on the exit side of each of the selector drive cams 11b and 12b.

Whether or not the presser group 30 acts on the selection butt 6b of the select jack 6 and presses the selection bat 6b to sink the butt 4b of the needle jack 4 and the butt 5b of the slider 5 so as not to protrude from the needle groove. To control. No presser is provided in the F position. The leading A presser 31a and the leading H presser 32a, and the trailing A presser 31b and the trailing H presser 32b are provided in the A position and the H position, respectively, with an interval in the middle. These pressers can be individually switched between action and non-action. The B position is in the ground state, and the B position is provided with a B presser 33 fixed to an action state in which the selection bat 6b is pressed.

FIG. 3 shows an engaging portion for moving the select jack 6 by the selector 7, which is provided in the entry-side needle selection mechanism 11 of FIG. 1 and can be switched in two stages depending on the presence or absence of pressing by the pressing cam 15. The pressing cam 15 presses the selection butt 6b of the select jack 6 and acts to sink the select jack 6 into the needle groove by about half as shown in FIG. 3A. When the selector 7 is selected for the paths 7A and 7H by the entry-side needle selection mechanism 11, the tip portion 7b of the selector 7 pushes the rear end of the selection bat 6b forward in the first step, and the select jack 6 is pressed. It can be moved to the A position or the H position. The select jacks 6 in the A and H positions are the intermediate needle selection mechanism 12, and as shown in FIG. 3B, are pushed up by the selector 7 in the second stage without pressing the selection bat 6b. Since the select jack 6 floats in the needle groove, the engagement point for pushing up with the tip portion 7b of the selector can be switched from the rear end of the selection bat 6b to the rear end of the overhanging portion 6c. In the first stage of engagement, the rear end of the overhanging portion 6c is behind the tip portion 7b, and the path 7B in the ground state is set on the entry side of the selector drive cam 12b of the intermediate needle selection mechanism 12. When the selector 7 is returned, the tip portion 7b may be set to be behind the rear end of the overhanging portion 6c. When the select jack 6 is selected in the B position by the entry-side needle selection mechanism 11, even if the selector 7 is returned to the path 7B in the ground state, the tip portion 7b stays in front of the overhanging portion 6c. The tip portion 7b continues to engage with the rear end of the selection bat 6b. Such an engaging state is the same as that of the entry side needle selection mechanism 11, and the intermediate needle selection mechanism 12 can also select three positions A, H, and B in the first stage engagement state. The two-step switching of the engagement portion between the selector and the select jack is to change the engagement portion with respect to the tip portion of the selector from the rear end of the selection bat to the rear end of the overhanging portion. Is disclosed in Japanese Patent Application No. 2019-073176 of the previous application. This prior application also discloses other examples of the replacement of engagement points, and such examples can also be applied to the invention of the present application.

FIG. 4 shows the positional relationship between the selection of the selector 7 at the phases a and b shown in FIG. 1 and the select jack 6 with respect to the needle selection mechanism 11 on the entry side, FIGS. 4A and 4B. ) And FIG. 4 (bA), respectively. In the phase a, the select jack 6 is submerged by about half in the needle groove 8a of the needle bed 8 by pressing the selection bat 6b by the pressing cam 15, and the selector 7 shows the select jack 6 as shown in FIG. 3A. The first stage of pushing up is possible at the various engaging points. Although the selector 7 shown in FIG. 4A is at the base position, the selector 7 is selected to set the select jack 6 to the A position at the release position α shown in FIG. 2, and the suction actuator 11a sucks the quadrupole 7a. Has been released. If the select jack 6 is released at the release position β corresponding to the option to set it to the H position, or if the select jack 6 is not released at both release positions α and β corresponding to the non-selection to keep the select jack 6 at the B position, the phase a Then, the contact electrode 7a is in a state of being attracted to the suction actuator 11a. In the B position, following the pressing cam 15 in the phase a, the B presser 33 presses the selection butt 6b after the phase b. 4 (bH) and 4 (bA) show the positional relationship in phase b after selecting H and A at the release positions β and α, respectively. At the H and A positions of the selection bat 6b, a leading H presser 32a and a leading A presser 31a are provided on the trailing side of the phase b, respectively. In FIG. 4 (bH), as a reference, the preceding H presser-32a is a haunting type presser, and the broken line shows the inactive state and the solid line shows the working state. Further, the preceding A presser 31a is also a swing type presser, and shows the working state of the solid line and the non-working state of the broken line. The presser provided in the A position and the B position and the above-mentioned pressing cam 15 including the preceding A presser 31a and the preceding H presser 32a have a height in the operating state lower than the height of the B presser 33, and are selected jacks. The selection bat 6b of 6 is set to protrude about half from the needle groove.

FIG. 5 shows a part of the positional relationship between the selector 7 and the select jack 6 at the phases c and d shown in FIG. 1 with respect to the intermediate needle selection mechanism 12 in FIGS. 5 (cH → F) and 5 (d). -A) and FIG. 5 (DF), respectively. In the phase c, there is no pressing on the selection butt 6b by the pressing cam 15, and there is no pressing from the presser in the H and A positions, so that the select jack 6 is not submerged in the needle groove 8a of the needle bed 8 and the selector 7 is The select jack 6 can be pushed up at the engagement point of the second stage as shown in FIG. 3 (b). The selector 7 shown in FIG. 5 (cH → F) is in the ground state, and the select jack 6 is in the H position. The selector 7 is selected at the release position α preceding the phase c, and the contact element 7a is released from the suction actuator 12a. This selection can guide the select jack 6 from the H position to the F position. The selection of the selector 7 at the release position α can guide the select jack 6 in the A position to the F position. 5 (dA) and 5 (df) show the states in which the select jack 6 is guided to the A and F positions in the phase d, respectively. The second stage push-up shifts from the H position to the A position, from the H position or from the A position to the F position, respectively.

In the presser group 30, the following knitting operation is selected by setting the preceding A presser 31a to ineffective, the following A presser 31b to act, the preceding H presser 32a to act, and the following H presser 32b to be ineffective. It will be possible. The selection of the H position or the A position on the entry-side needle selection mechanism 11 corresponds to the selection of the type of tack or knit knitting operation in the first half, respectively. When such an H position is selected, the butt 4b of the needle jack 4 is guided to the tack path 4bH shown in FIG. When the H position corresponding to the tack is selected by the entry side needle selection mechanism 11, the H position or the A position can be selected by the intermediate needle selection mechanism 12, and the stitches of the formed tack are relatively set. You can select the degree of coarseness or fineness. When the A position corresponding to the knit is selected by the entry side needle selection mechanism 11, the A position or the F position can be selected by the intermediate needle selection mechanism 12, and the stitches of the formed knit are relatively set. You can select the degree of fineness or coarseness. The Applicant discloses, for example, Japanese Patent Application Laid-Open No. 08-60499 about the basic misalignment operation. In this embodiment, since it is possible to knit differently between knit and tack, it is possible to select five types of knitting operations including a mistake in the B position.

In the first embodiment, since the compound needle that opens and closes the hook with the blade on the tip end side of the slider 5 is used as the knitting needle 3, a premium knitting operation as disclosed by the applicant in Japanese Patent No. 5330249 can be performed. It is also possible to mix with different degrees of tack and knit. The slider cam acting on the butt 5b of the slider 5 is provided in the cam system 2 with a guide path for keeping the blade advancing to the tooth opening at the time of stitch formation. The slider cam is provided with a knit presser that presses an auxiliary butt provided in front of the butt 5b of the slider 5 in the F position. When the knit presser is operated in the F position, when the needle jack 4 is pulled in by the degree mountain cam 21, the slider holds the old loop that is knocked over and keeps the state of advancing to the tooth opening. Such a premium operation is possible by selecting the H position or the A position with the entry side needle selection mechanism 11 and selecting the F position with the intermediate needle selection mechanism 12.

FIG. 6 is a select jack in the second embodiment of the present invention, which is switched by the entry-side needle selection mechanism 41 and the intermediate needle selection mechanism 42 corresponding to the entry-side needle selection mechanism 11 and the intermediate needle selection mechanism 12 of FIG. 1, respectively. An engagement point for moving the 46 with the selector 47 is shown. In the second embodiment, the pressing cam 15 is not provided on the entry-side needle selection mechanism 41, and the pressing cam 45 is provided on the intermediate needle selection mechanism 42. The select jack 46 and the selector 47 are the same as the select jack 6 and the selector 7 of the first embodiment except for the difference regarding the switching of the engaging portion by the pressing cam 45, and the cam system 2 is also the same as the first embodiment. used. The selector 47 has a protrusion 47e protruding in the needle groove in a deeper direction at the rear end thereof in the direction of exiting from the tooth opening. The selector 47 has a drive butt 47c and a lower butt 47d similar to the drive butt 7c and the lower bat 7d of the selector 7, and also has a protrusion 47e and a tail 47f. As shown in FIG. 6A, the first-stage engagement of the second embodiment is performed between the rear end of the selection butt 46b of the select jack 46 and the tip end portion 47b of the selector 47. As shown in FIG. 6B, the engagement in the second stage is performed between the protrusion 47e provided near the tangent element 47a at the rear end of the selector 47 and the protrusion 46c of the select jack 46. Such switching is performed by pressing the tail portion 47f of the selector 47 so as to slightly sink in the needle groove in FIG. 6B. In the first stage of engagement, the protrusion 46c is behind the protrusion 47e, and the selector 47 is returned to the ground state path 7B on the exit side of the selector drive cam 41b of the entry side needle selection mechanism 41. The protrusion 47e may be behind the protrusion 46c.

FIG. 7 shows the positional relationship between the selector 47 and the select jack 46, including two-step switching of the engagement portion. The phases a, b, c, and d correspond to FIG. FIG. 7A shows the positional relationship in the phase a in which the selector 47 is in the ground state and the select jack 46 is selected in the A position. FIG. 7 (b-A) shows the positional relationship in the phase b in which the select jack 46 is moved so as to be in the A position by the entry-side needle selection mechanism 41. This state corresponds to FIG. 4 (bA). The select jack 46 can also be advanced to the H position so as to correspond to FIG. 4 (bH). FIG. 7 (cA → F) shows a state in which the needle is selected for F in the phase c, following FIG. 7 (bA). FIG. 7 (df) shows a state in which the select jack 46 is in the process of shifting from the A position to the F position in the phase d.

In Examples 1 and 2, suction actuators 11a, 12a; 41a, 42a that utilize magnetic force are used for the entry side needle selection mechanism 11, 41 and the intermediate needle selection mechanism 12, 42, but selection as in Patent Document 1. A needle mechanism can be used. By using the suction actuators 11a, 12a; 41a, 42a, it is possible to avoid the increase in size in the left-right direction, and the intermediate needle selection mechanisms 12, 42 can be provided in the middle of the existing cam system 2. Further, although a composite needle is used as the knitting needle 3, a flat needle can also be used. Since the applicant of the present invention discloses, for example, Japanese Patent No. 5913427, a surcharge using a flat needle, such an operation may be added so that it can be selected by the intermediate needle selection mechanism 12. Further, the present invention can be applied to other than the combination of the selectors 7 and 47 and the select jacks 6 and 46 as the target of needle selection.

1 Flat knitting machine 2 Cam system 3 Knitting needle 4 Needle jack 4b, 5b Butt 5 Slider 6,46 Select jack 6b, 46b Selection bat 6c Overhanging part 7,47 Selector 7a, 47a Connection pole 7b, 47b Tip 8 Needle bed 8a Needle groove 10 Needle selection mechanism 11 Input side needle selection mechanism 11a, 12a Suction actuator 11b, 12b Selector drive cam 15,45 Pressing cam 21 degree mountain cam 31 Knit presser 31a Leading A presser-
31b Posterior A presser 32a Leading H presser 32b Posterior H presser 33 B Presser 46c, 47e Protrusion 47f Tail

Claims (5)

At least a pair of front and rear needle beds that face each other across the tooth opening,
Multiple knitting needles, each housed in a plurality of needle grooves arranged side by side at a constant pitch along the longitudinal direction of the needle bed.
Carriage that reciprocates in the longitudinal direction of the needle bed,
It is equipped with a cam system mounted on the carriage to drive the knitting needle in the direction of advancing and retreating to the tooth opening to perform the knitting operation, and a needle selection mechanism mounted on the carriage to select the knitting needle to perform the knitting operation.
The knitting needle is
It has a selection butt that is affected by the cam system, and guides to different positions including the B position at the base position, the H position at the intermediate position set in the direction of advancing toward the tooth opening rather than the B position, and the A position at the advancing position. The select jack, which can make the knitting operation of the knitting needle different by the difference in the pressure from the cam system that the selection bat receives at each position,
Depending on the selection state of the knitting needle in the needle selection mechanism, it is driven to pass through either the basal path when the knitting needle is not selected, the intermediate path when the knitting needle is selected, or the advance path, and the intermediate path or Includes a selector that can engage with the select jack and guide the select jack to the H or A position, respectively, through any of the advance routes.
The needle selection mechanism includes a selector drive cam that moves the selector along a preset path and drives it to guide the select jack via engagement.
In a flat knitting machine
On the entry side to the cam system, the entry side needle selection mechanism that selects the knitting needle for the first half of the knitting operation in which the knitting needle advances to the tooth opening,
In the middle of the cam system, an intermediate needle selection mechanism that selects the knitting needle for the latter half of the knitting operation in which the knitting needle exits the tooth opening,
It also includes a select jack or a pressing cam that can press the selector in the direction of sinking into the stylus groove.
The engagement between the selector and the select jack is a pressing cam between the first stage in which the select jack in the B position and the selector are engaged and the second stage in which the select jack in the H position or the A position is engaged with the selector. Switched by pressing with
A flat knitting machine characterized in that the intermediate needle selection mechanism is provided with a forward position in the direction of advancing to the tooth opening rather than the A position as a position where the select jack is guided by the engagement in the second stage. The pressing cam is provided on the entry-side needle selection mechanism and presses the selection butt of the select jack.
The select jack has an overhanging portion that overhangs to the rear end side at the base portion of the rear end that is in the direction of exiting from the tooth opening with the selection bat.
In the selector, the tip portion in the direction of advancing to the tooth opening engages with the rear end of the selection bag of the select jack that sinks into the needle groove due to the pressing by the pressing cam in the first step, and overhangs in the second step. Engage with the rear end of the part,
The flat knitting machine according to claim 1. The pressing cam is provided in the intermediate needle selection mechanism and presses the tail portion in the direction of exiting from the tooth opening with the selector.
The select jack has a protrusion at the rear end that protrudes in the needle groove in a shallow direction.
The selector has a protrusion protruding in a deeper direction in the needle groove at the rear end in the direction of exiting from the tooth opening, and the tip portion in the direction of advancing to the tooth opening is a select jack in the first step. Engages with the rear end of the selection bat, and in the second step, the protrusion that sinks into the needle groove due to pressing by the pressing cam engages with the protrusion of the select jack.
The flat knitting machine according to claim 1. The entry-side needle selection mechanism and the intermediate needle selection mechanism include a suction actuator that can release the state of attracting the selector by magnetic force at a plurality of positions in response to the selection.
The selector drive cam drives the selector so as to guide the selector to a different path depending on the position where the suction by the suction actuator is released.
The flat knitting machine according to any one of claims 1 to 3, wherein the flat knitting machine is characterized by the above. The latter half of the knitting operation is characterized by comprising a misaligned knitting operation in which the amount of pulling in by a mountain cam provided in the cam system for retracting the knitting needle from the tooth opening is different. The flat knitting machine according to any one of claims 4.

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