JPH0240777B2 - - Google Patents

Description

Detailed Description of the Invention (Industrial Application Field) The present invention relates to a needle selection device for a flat knitting machine, which changes from a miss position to a knit position by energizing or de-energizing each needle selection coil provided for each knitting needle. When a plunger protruding from the needle is provided to match the arrangement pitch of the knitting needles on the needle bed, and the baffle piece is moved to engage with a locking shoulder or a locking recess provided on each plunger,
Even if the needle selection coil is energized or de-energized, the plunger is limited to protrusion to a tack position lower than the knit position.

(Prior Art) In this specification, the term "mistake position" refers to the height at which the knitting needle butt does not come into contact with the carriage cam at which the knitting needle is not selected.
Knit position and tuck position are conventional terms.

In conventional needle selection devices for flat knitting machines, a configuration in which needles are selected by pushing up a butt provided on a knitting needle or jack from a miss position to a knit position or a tuck position is disclosed, for example, in Japanese Patent Publication No. 47-12228 and Japanese Patent Application Laid-Open No.
As disclosed in Japanese Patent Application Laid-open No. 53-14957 and Japanese Patent Application Laid-open No. 54-68440, various types of knitting needles are known, but the knitting position is determined by using a plunger that can select the knitting needles or jacks one by one. Alternatively, in order to have a configuration that allows the plunger to protrude to any of the tuck positions, the plunger, whose protrusion to the knitting position is controlled by the needle selection coil, can be moved to the tuck position by providing a baffle piece and a baffle piece coil. I can't find anything installed in a separate case.

(Problems to be Solved by the Invention) The present invention has a configuration in which a needle selection device using magnetic force is housed in a horizontally long case so that it can be easily attached to and removed from a flat knitting machine. In addition, we are searching for a configuration that can limit the protrusion of a plunger, which is a needle selection member using magnetic force corresponding to each knitting needle or jack, from protruding to the knit position to the tuck position. The problem is to make it applicable to stockinette knitting machines such as stockinette glove knitting machines.

(Means for Solving the Problems) The present invention aims to solve the above-mentioned problems. By repeatedly staggering the knitting needles back and forth, the knitting needles are aligned with the arrangement pitch of the knitting needles, and the locking shoulder is engaged with the lower surface of the ejection hole provided in the case so that the tip can be moved to the knitting position and protruded to the wrong position on the upper surface of the case. Inside the case, several needle selection coils are arranged in a staggered manner in the front and back, and each plunger is provided with a needle selection coil that projects and moves the associated plunger from the miss position to the knit position by individually energizing or de-energizing the needle. The aforementioned locking shoulder or locking recess that moves within the case is provided, and baffle mounting plates that move with the excitation of a coil provided outside the case are provided at the front and rear of the case, and the plunger inside the case is provided from each of the mounting plates. Attach a baffle piece facing horizontally to each plunger with a buffer spring attached to the locking shoulder or the locking recess, and move the baffle piece to the locking shoulder or the locking recess. Accordingly, a baffle piece is provided that limits the protruding movement of the tip of each plunger from the miss position to the tuck position lower than the knit position, as well as the individual excitation of each coil. This feature is characterized in that it corresponds to a needle selection lever associated with each of the large number of knitting needles or jacks.

(Example) Examples of the present invention will now be described.

In the figure, 1 consists of iron materials 2 and 3;
It is a horizontally long case in which a printed wiring board 4 and a yoke plate 5 are sandwiched between them, and a suction plate 6 is placed on the bottom surface to fix the entire case. As shown in FIG. 1, the iron material 3 is repeatedly cut in groups of three with slight differences in the front and back direction, and a vertical hole 7 for coil insertion is provided in the iron material. In addition, printed wiring board 4
is concentric with the vertical hole 7 in the upper iron material 2,
In addition, a plunger insertion vertical hole 8 with a slightly smaller inner diameter is provided, and a protrusion hole 9 with a further reduced diameter is provided at the upper end of the vertical hole 8, and at the upper end connected to the protrusion hole 9 of the insertion vertical hole 8, As shown in FIGS. 1 and 5, a horizontal hole 10 for inserting a baffle piece is formed perpendicularly through the hole 10.

Reference numeral 11 denotes a needle selection coil inserted into each vertical hole 9, to which individual wires provided on the printed wiring board 4 are connected, and each needle selection coil 11 is energized or de-energized by a computer (not shown). Apply control. 12 is slidably inserted into the insertion vertical hole 8,
The upper end protrudes from the protrusion hole 9 to the upper surface of the case 1,
This is a plunger whose lower side is passed through a hole provided in a printed wiring board 4 and a yoke plate 5, and then inserted into a needle selection coil 11. In this embodiment, when the needle selection coil 11 is excited, the plunger 12 is attracted downward and comes into contact with the adsorption plate 6 as shown in FIG. In this state, an enlarged diameter part 13 is provided that is a certain distance below the horizontal hole 10 and also creates a gap between it and the printed wiring board 4, and an engagement shoulder 14 is provided at the upper end of the enlarged diameter part 13. The enlarged diameter part 13 is brought into contact with the inner surface of the vertical insertion hole 8, the lifting spring 15 is wound around the plunger 12 at the lower end of the enlarged diameter part 13, and the lower end of the spring is attached to the printed wiring board 4. Contact. The number of plungers 12 corresponds to the number of knitting needles or jacks of the flat knitting machine, and is provided in accordance with the row pitch of the knitting needles on the needle bed, and similarly to the vertical holes 7 and insertion vertical holes 8, three plungers are provided at the front and rear. The direction is different, and its mode is shown on the right side of Fig. 1.

Since the printed wiring board 4 has a through hole through which the plunger 12 passes and receives the lower end of the lifting spring 15, the area for wiring is limited, so the wiring board 4 is attached to the lower surface of the suction plate 6 and 15 can be changed to a design in which it is supported by the upper surface of the yoke plate 5.

In the above, the horizontal hole 10 can be provided slightly below the illustrated position. On the other hand, when the plunger 12 is projected to the knit position, the locking shoulder 14 of the enlarged diameter portion 13 must come into contact with the lower surface of the projection hole 9.
It is also possible to provide a locking recess a on the circumferential surface of the plunger so that when the plunger 12 is placed in the miss position, the lower edge of the locking recess a is located below the horizontal hole 10 at a constant distance.

As shown in FIGS. 2 to 4, baffle piece actuating coils 21 are attached to both longitudinal sides of the case 1, and a link 23 provided with a pin 24 is connected to the upper end of the suction piece 22 that projects upward. A pair of swing levers 2 fitted on the front and rear shafts 25' and 25' of 24
Forked portions 26 and 2 provided at opposing portions of 5 and 25
6 is fitted into the pin 24, push plates 27, 27 protruding downward are provided on each swing lever 25, 25, and the push plates 2
There is a sliding groove 28 in the front and back direction in the part where 7 and 27 pass vertically.
will be established.

Reference numerals 29 and 29 refer to baffle mounting plates having a symmetrical U-shaped cross section and arranged on the front and rear sides of the case 1, and slides that fit into both ends of the mounting plates 29 and 29 from the rear and front sides of the sliding groove 28 are provided. The moving pieces 30, 30 are attached, and the engagement pins 31, 31 provided on each sliding piece 30, 30 are brought into contact with the front and rear of the push plates 27, 27, and the tension spring 32 that maintains the contact is obstructed. Single mounting plate 29,2
Multiply by 9.

As shown in FIG.
4, 34 and install. Those obstruction pieces 34
As shown in FIG. 5, flanges 35 and 36 are provided on the outside and inside of the mounting plate 29, and a buffer spring 37 is wound around the baffle piece 34 between the inner flanges 36 and the inner surface of the mounting plate 29. Put on.

As shown in FIG. 1, one of the baffle pieces 34, 34 is inserted into the vertical insertion hole 8. In this embodiment, when the baffle piece actuating coil 21 is de-energized, the baffle pieces 34, 34 retreat outward from the vertical insertion hole 8 and cannot engage with the plunger 12, but on the contrary, when the baffle piece actuating coil 21 is energized, You may choose to retreat.

In this embodiment, when the needle selection coil 11 is de-energized, the plunger 1 protrudes from the upper surface of the case 1.
It is also possible to set the tip of No. 2 at the miss position and make it protrude to the hit position during excitation.

In addition, as shown in FIG. 7, the needle selection coil 11 is shortened and installed above the vertical hole 7, and the permanent magnet 42 attached to the support piece 41 is brought into contact with and fixed to the lower part of the coil, or as shown in FIG. As shown in the figure, the lengths of the vertical holes 7 and needle selection coils 11 are shortened, and a permanent magnet 44 in contact with the bottom surface of each needle selection coil 11 is placed in a wide-area cavity 43 provided on the bottom surface of each vertical hole 7 using a non-magnetic material. It can also be configured to be fixed on the plate 45. In the configuration shown in FIGS. 7 and 8, when the needle selection coil 11 is de-energized, the plunger 1
2 resists the action of the lifting spring 15, and the permanent magnet 42,
44 and reaches the miss position, and when the needle selection coil 11 is excited, the magnetic force of the permanent magnet 42 or 44 and the magnetic force of the coil 11 are mutually canceled out, and the plunger 12 is projected to the knit position by the elasticity of the lifting spring 15. .

FIG. 9 shows case 1 of the present invention on the needle bed 51 of a flat knitting machine.
This figure shows how it is used by being attached to the lower surface of the rear end. On the needle bed 51, knitting needles 52 and jacks 53 that are in contact with the rear side of the lower surface of the knitting needles are arranged in a fixed array pitch, and a needle selection lever 56 supported by a shaft 55 is provided on the lower surface of the needle bed 51, The needle selection lever 5
6, the rear part of the jack 53 from the butt 54 is slidably gripped, and a downwardly pulling spring 58 is attached to the rear end of the needle selection lever 56. In the case 1, the plunger 12 is fixed in contact with any one of the needle selection protrusions 57 of each needle selection lever as shown in the figure, and the solid line in FIG. Butt 5 via lever 56
4 is shown in the knit position. If the plunger 12 is in the miss position, the butt 54 will also be in the miss position.If the plunger 12 is placed in the tuck position by restricting the protrusion of the plunger 12 from the miss position by the baffle piece 34 as described later, the butt 54 will also be in the tack position. 'become.

In the embodiment of the invention shown in FIGS.
At the end of one course, all needle selection coils 11
is energized to lower all the plungers 12 to the miss position, and then the computer selectively controls de-energization of some needle selection coils 11, and inserts the lower part into the de-energized needle selection coils 11. Only the plunger 12 that has been moved is raised by the elasticity of the lifting spring 15 to the knit position.

Also, in a certain course, for example, when placing every fifth plunger 12 in the tack position, all the needle selection coils 11 are energized at the end of the previous course to align them to the miss position, and then the baffle coils are 21, the suction piece 22 and link 23 are projected as shown in FIG. 4, and the baffle piece mounting plates 29, 29 are
is pulled by the tension spring 32 to project all the baffle pieces 34 into the insertion vertical hole 8 as shown in FIG. 1, and here only the necessary needle selection coil 11 is controlled to be de-energized.
At this time, only the plunger 12 whose lower part is inserted through the de-energized needle selection coil 11 protrudes due to the elasticity of the lifting spring 15. Since it protrudes as shown in Fig. 5, its upward movement is limited by the baffle piece 34, and it protrudes to the tuck position.

(Operations and Effects of the Present Invention) The present invention adjusts the arrangement pitch of the knitting needles 52 by repeatedly aligning a number of plungers 12 corresponding to the number of knitting needles or jacks of a flat knitting machine back and forth in groups of several plungers. At the same time, the locking shoulder 14 is engaged with the lower surface of the protrusion hole 9 provided in the horizontally long case 1, so that the tip can be protruded to the knit position, and the tip is protruded to the miss position on the upper surface of the case 1. It has a configuration in which several needle selection coils 11 are arranged inside the needle, staggered in the front and back, and each plunger 12 is energized or de-energized to protrude and move each plunger 12 from the miss position to the knit position. For flat knitting machines, such as stockinette glove knitting machines, in which the number of row knitting needles planted on the needle bed is small, the compact case 1 can be attached to perform needle selection.

Furthermore, baffle mounting plates 29 are provided at the front and rear of the case 1 and move as the baffle piece coil 21 provided outside the case 1 is energized or de-energized. A baffle piece 34 facing from the horizontal direction is attached to the stop shoulder 14 or the locking recess a, and a baffle piece 34 facing from the horizontal direction is attached to each plunger 12, and the above-mentioned locking shoulder 14 or the lock provided on the plunger 12 is attached. By moving the baffle piece 34 to the concave portion a and energizing or de-energizing each needle selection coil 11, the configuration is such that the tip of each plunger is limited to protruding movement from the miss position to the tack position lower than the knit position. It is characterized by functions and effects such as knitting or tack knitting can be performed by the needle selection coil 11, plunger 12, baffle piece coil 21, and baffle piece 34 of the case 1 that match the number of knitting needles 52.

[Brief explanation of drawings]

The accompanying drawings show a preferred embodiment of the present invention, in which Fig. 1 is a partially cutaway plan view, Fig. 2 is a partially cutaway front view, Fig. 3 is a side view, and Fig. 4 shows a state in which the baffle piece is retracted. FIG. 5 is a side view showing the operation, FIG. 5 is a side view taken along the line A-A in FIG. 1, FIG. 6 is a side view showing a modification of the plunger 12, and FIGS. FIG. 9 is a side view taken at the same cutting point as shown in FIG. → Miss position, → Tuck position, → Knit position, 1 → Case, 4 → Printed wiring board, 7 → Vertical hole, 8 → Insertion vertical hole, 9 → Ejection hole, 10 → Horizontal hole,
11 → needle selection coil, 12 → plunger, 14 → engaging shoulder, a → locking recess, 15 → lifting spring, 21 → baffle piece coil, 25 → rocking lever, 29 → baffle piece mounting plate, 32 → pulling Spring, 34 → baffle piece, 54 → butt, 56 → needle selection lever, 57 → needle selection protrusion.

Claims (1)

[Scope of Claims] 1 A number of plungers corresponding to the number of knitting needles or jacks of a flat knitting machine are repeatedly shifted back and forth several times to match the arrangement pitch of the knitting needles and are locked to the lower surface of the protrusion hole of the case. Engage the shoulder so that the tip can be moved to the nit position and protrude into the miss position on the top of the case, and arrange several pieces inside the case in a staggered manner back and forth, and individually energize or de-energize each member. A needle selection coil is provided to protrude and move the plunger from the miss position to the knit position, each of the plungers is provided with the aforementioned locking shoulders or locking recesses that move within the case, and the locking shoulders or locking recesses are provided outside the case at the front and rear of the case. A baffle mounting plate is provided which moves with the excitation of the baffle piece coil, and a baffle piece facing from the horizontal direction from each mounting plate is attached to the locking shoulder or locking recess of the plunger in the case with a buffer spring attached. is attached to each plunger, and by moving the baffle piece to the locking shoulder or locking recess and individually energizing each needle selection coil, the tip of each plunger is moved from the miss position to a position lower than the knit position. A flat knitting machine characterized in that the plunger is configured to restrict its protruding movement to a certain position, and the tip of each plunger protruding from the case corresponds to a needle selection lever attached to each of a large number of knitting needles or jacks of the flat knitting machine. needle selection device.