JPH03113058A - Presser apparatus for pressing stitch of weft knitting machine - Google Patents

Abstract

PURPOSE:To dispense with a means for adjusting the position of a conversion mechanism in the variation of the width of knit fabric by operating a vertical position conversion mechanism of a presser in a state interlocked with the motion of a slider at the initial stage of the directional change of a carrier at an end of reciprocating motion. CONSTITUTION:A base plate 1 having pressers 2a, 2b and a mechanism 3 for changing the vertical position of the pressers is moved via a slider 5 engaged with a protruded piece 4 moving together with a carriage. At the initial stage of the directional change of the carriage at an end of knitting, a swinging piece 10 is inverted with a vertical position changing mechanism by the motion of the slider to effect the change of the vertical position of the pressers.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an operating device for changing the vertical position of a stitch presser in a horizontal stockinette knitting machine.

(Prior art) In the stitch presser device of a horizontal stockinette knitting machine, the vertical position of each presser (left and right) is changed exclusively when the knitting carriage reaches the end of a reciprocating section of a predetermined amount. Correspondingly, the vertical conversion operation part of the presser was directly collided with or rubbed against some control member provided at the end position of the reciprocating motion, thereby operating the conversion operation.

(Issue 8 to be solved by the invention) In the above conventional means, when adjusting the amount of reciprocating movement of the carriage as the knitting width increases or decreases, the position of the control mechanism at both ends of the reciprocating movement with respect to the vertical position conversion actuating section of the prefuser is It is necessary to adjust the adjustment at the same time, and the operation is complicated, and automatic machines have no choice but to make it even more complicated.

(Means for Solving the Problems) In view of the above, the present invention does not provide a control mechanism for vertical conversion operation of the prefuser at both end positions during knitting operation.
The vertical position of the prefusers is changed in conjunction with the initial movement of the direction change operation of the carriage at the reciprocating end during knitting. A board provided with a conversion operation mechanism is provided so as to be carried in the same direction as the carriage via a slider that engages and disengages from a protrusion that moves together with the knitting carriage. It is characterized in that a mechanism for changing the vertical position of the prefuser is operated in conjunction with the movement.

(Function) In the present invention, as illustrated in the embodiment, the substrate (1) provided with at least one pair of prefaces (2a) (2b) and the vertical position conversion mechanism (3) is connected to the carriage. A slider (5) engaged with a protruding piece (4) that moves together with the slider (5).
) in the same direction as the carriage, and at the beginning when the carriage changes direction at the knitting end, the slider (5)
Due to the movement of the oscillating piece (
The IQ is reversed to change the vertical position of the prefuser (2a) (2b), and there is no need for any control mechanism equipment at both end positions, and it is directly linked to the direction change operation of the carriage, so it can be used even when the knitting width changes. The vertical position of the prefusor can be automatically changed without requiring any adjustment for the vertical position conversion operation of the prefusor.

(Example) Embodiments of the present invention will be described with reference to the drawings.

In Fig. 1, (1) is a board equipped with two prefusers (2a) (2b) that move up and down for forward and backward movements, respectively, and a mechanism (3) for converting the up and down positions. ) is movably supported by supporting members (la) tied to both ends of the fixed rail (7) installed above the needle bed of the knitting machine along the length of the needle bed. Element(
A slider (5) having a width narrower than the interval (la) is movably supported on the fixed rail (6), and a knitting carriage (not shown) is installed in the recess (6) on the upper surface of the slider (5). A projecting piece (4) that reciprocates integrally with the holder is removably fitted in, and when engaged, the slider (5) is first moved in the same direction by the movement of the projecting piece (4), and when the slider (5) After colliding with one of the support members (1a), the substrate (1) is carried in the same direction via the slider (5), and in FIG. When moving in the direction, use the left prefuser (2a)
Move down to prevent stitches and press the right prefixer (2b)
Raise to the rest position.

In addition, both pressers (2a) and (2b) each have a lifting piece (8
), the elevating piece (8) is moved up and down according to the groove of the groove member (9) attached to the board (1), and the elevating piece (8) is pivoted in the middle (10a). Rocking piece (1
By engaging the pins (121) with the elongated holes (In) at both ends of the pin (121), the positions of the left and right prefixers (2a) and (2b) are mutually changed by the reversal and tilting of the rocking piece (IQ).

In addition, the above-mentioned swing piece (prefuser (2
a) The vertical position conversion actuation mechanism (3) in (2b) has a cam surface on both upper edges of the pivot support (10a) of the swinging piece (10) in contrast to the actuating piece (13) attached to the lower edge of the slider (5). (
14) (1@ was formed symmetrically.

Thus, as shown in Figure 1, the left row of the carriage moves the protrusion (
4) moves in the direction of the arrow, the slider (5), which engages with the slider (5) at the fourth part (6), moves in the same direction, causing the elastic piece (1b) embedded in the opposing surface of the support member (1a) to The board (1) is brought into contact with the board (1) in the same direction, and the stitch suppression operation is performed by the prefuser (2a) in the downward movement position. In order to suppress the outer end (14a) of the cam surface 0@ of the piece (IG), the activated prefusor (2a) is held fixed in that state.

Then, when the carriage changes direction at the knitting end, the projection (4) moves in the opposite direction to the direction of the arrow in FIG.
The substrate (1) is moved to the right in the same figure within the interval between the supporting members (la) (la) and brought into contact with the elastic material (lb) of the other supporting member (la) in the direction of the arrow. During the reversal movement of the slider (5), the actuating piece (13) acts on the cam surface a@ of the rocking piece GO, rotating the rocking piece (10 clockwise in the figure) and inverting the rocking piece (10). presser (2
a) moves up to the inoperative position, and the right presser (
2b) is switched to the downward operating position, and the outer end (14a) of the opposite cam surface aΦ is connected to the end (13a) of the operating piece (13).
) to hold and fix it in its operating position.

Incidentally, although the cam surface aΦ of the above-mentioned rocking piece (10) is formed into an arc shape, it may be formed into an inclined straight line.

Furthermore, during the initial movement of moving the slider (5) in the same direction by engagement with the protruding piece (4), the slider (5) and the substrate (
1) and fixed rails (
A sliding member (+5+) was damped by a spring ce, which was interposed between the supporting member (la) and the rail (7) so as to give a light damping to the sliding part of the supporting member (1a).

In addition, the protrusion (4) on the carriage side relative to the slider (5)
is the slider (5) as shown in the diagram by a suitable means.
The presser device can be brought into a rest state by engaging and disengaging the recess (ω).

Further, for a double cam type knitting machine, two protrusions (4) on the carriage side are provided corresponding to the arrangement of the knitting cams, and two sets of the presser devices are connected correspondingly. In addition, it can also be applied to a triple cam type knitting machine by increasing the number of knitting machines.

Next, other embodiments will be described with reference to FIG. 4 and subsequent figures.

This embodiment corresponds to a double cam type knitting machine, and a base plate (1) on which two presser devices each consisting of a pair of pressers (2a) and (2b) are installed at a predetermined interval is connected to support members (la) on both sides. ) (la) is slidably provided on the fixed foil strip (7), and a pair of front and rear sliders (5a) (5b) is provided between the support members (la) and (la), and a front slider (5a) is provided. is attached to the support member (la) (la), and the rear slider (5b) is attached to the front slider (5a).
The recesses (6
) (6) to engage and disengage the projections (4) (4) on the carriage side, and in the engaged state, the projections (4) (4)
The movement of the slider (5a) (5b) is carried in the same direction, and the front slider (5a) and both side support members (la
) (la), the board (1) is carried along. For example, when moving the protruding piece (4) (4) in the direction of the arrow in Fig. Piece (4) is the left recess (6) of the front and rear sliders (5a) <5b)
(6) It engages with the mouth edge, but the rear protrusion (4) is located on the four right side (6) mouth edges of the rear slider (5b),
The position is separated from the mouth edge of the recess (6) of the front slider (5a), and in this way both sliders (5a) (5
The positions of the recesses (6) and (6) in b) are mutually displaced, and when the protruding piece (4) (4) moves, the protruding piece (4) at the front in the moving direction moves into the recessed part (6) of both sliders. The concave part (6) of one slider abuts against each mouth edge of the slider (6), and the four parts of the other slider (6) are located at the mouth edge of the slider with respect to the protruding piece (4) at the rear in the direction of movement. were set to have a estranged relationship.

1 of each of the 2 sets of presser devices provided on the board (1)
As in the previous embodiment, the pair of pressers (2a) and (2b) are configured to convert the vertical position by the reversal and tilting of the rocking piece (IO) with the intermediate (10a) pivoted, and the simultaneous conversion operation mechanism (3 ), between the two sets of presser devices,
The rotary piece a9 is pivotally supported, teeth (2) are provided on its upper circumferential edge, and a pinion (2), which is pivotally supported on a support plate 0 integrated with the front slider (5a), is meshed with the teeth (2), and the rear slider (5a) is
5b), a rack ■ that meshes with the opposite side of the binion ■ is fixed, and both ends of the operating lever [phase] attached to the rotating shaft of the rotating piece a9 are connected to two sets of presser devices with a pin ■ and a long hole ■. The inner pressers (2b) (2a) are connected to the attached elevating pieces (8) (8), and as the operating lever @ rotates, the vertical relationship of the inner pressers (2b) (2a) of each set is changed. The oscillating pieces on both sides (IO
(The outer presser (2a) of each set is
The vertical relationship in (2b) was changed.

Thus, as the organization carriage moves, the slider (
When the board (1) together with (5a) (5b) is carried in the direction of the arrow in FIG. ) (2b) moves in the upper rest state, and the left protrusion ( 4) is the concave part (6) of both sliders (
The protruding piece (4) on the right side abuts against the mouth edge of the recess (6) of both sliders (5b) and moves away from the mouth edge of the slider (5b).
5b) is brought to the right, and after colliding with the mouth edge of the four parts (6) of the front slider (5a), both sliders (5a) and (5b) are brought to the right by the protruding piece (4). do.

When the rear slider (5b) moves to the right at the beginning of the direction change movement of the protruding piece (4), the rack integrated therewith rotates the pinion (■), and the pinion (■) further rotates the rotating piece (191). As described above, the vertical position of each presser (2a) (2b) of the two sets of presser devices is simultaneously converted by tilting the operating lever C!Φ, and in this conversion operation, the front and rear slider (5a)
) (5b) is an inverse relationship to the state shown in the fourth diagram, with the mouth edges of the left four parts (6) (6) of both sliders being displaced, and the right pressers (2b) (2b) of each set are respectively lower. When the operating state is reached, the stitch is held rightward and the above-mentioned operation is repeated in the conversion operation when the right side movement end is reached, that is, the rear slider (5b) is moved by the protrusion (4) at the beginning of the direction change operation. By moving it to the right or left, the vertical position conversion mechanism (3) using the rack (2), the rotating tooth piece a9 of the pinion, and the operating lever QΦ is activated to convert the presser (2a) (2b).

In the illustrated example, the rotating piece q9 is a circular plate, but it is optional to use a fan-shaped plate or the like.

Also, in this embodiment, only the rear slider (5b) is moved and the rack ■
Each support member (la) (l
A resilient spring Ge was interposed between a) and the rail (7).

Further, this embodiment device can also be applied to a single cam type knitting machine or a triple cam type knitting machine.

(Effects of the Invention) According to the present invention, the action of the knitting carriage changing direction at the reciprocating end is used as the operation source, and the base plate of the presser device is carried along via the slider by the projecting piece that moves together with the carriage, and the carriage Since the vertical position of the presser device is converted by the movement of the slider due to the initial movement at the time of direction change, there is no need to provide a conversion mechanism that acts on the presser device at both ends of the presser device as in the conventional case. There is no need for any means to adjust the position of the conversion mechanism at both ends when the width of the fabric changes, and the adjustment of the stitch restraint operation can be achieved at the same time just by automatically adjusting the amount of reciprocating movement of the carriage, further improving the automation of the knitting machine. As a result, the equipment maintenance operation of the knitting machine becomes significantly easier.

[Brief explanation of drawings]

The drawings show an embodiment of the device of the present invention, and FIG. 1 is a front view, FIG. 2 is a side cross-sectional side view taken along the line ■-■ in FIG. 1, and FIG. 3 is a side view taken along the line ■-■ in FIG. Fig. 4 is a front view showing another embodiment of the device of the present invention, Fig. 5 is a partially cutaway plan view, Fig. 6 is a sectional view taken along the line VI-VT of Fig. 4, and Fig. 7 is the same. Fig. 8 is a cross-sectional view taken along the line ■--■. (1)... Board (2a) (2b)... Presser (3)... Presser vertical position conversion mechanism (4)...
・Protruding piece (5) (5a) (5b)...Three people outside the slider Figure 1 Figure 6 Figure 8 Figure 7

Claims (1)

[Claims] 1. A presser device consisting of at least one pair of pressers and a substrate provided with a mechanism for changing the vertical position of the presser device are connected via a slider that engages and disengages from a protrusion that moves together with the knitting carriage. A horizontal stockinette knitting machine characterized in that the presser is moved in the same direction as the carriage, and a vertical position changing mechanism of the presser is operated in conjunction with the movement of a slider at the beginning of the direction change of the carriage at the reciprocating end. Stitch suppressing presser device. 2. The horizontal knitted fabric according to claim 1, further comprising a vertical position converting mechanism in which a pair of pressers are attached to both ends of a swinging piece whose middle part is pivotally supported, and a slider and an opposing part of the swinging piece are engaged with a cam. Stitch presser device for knitting machines. 3. The horizontal position according to claim 1, further comprising a vertical position converting mechanism in which a pair of pressers are attached to both ends of a swinging piece whose middle part is pivotally supported, and a gear transmission mechanism is provided between the slider and the swinging piece. Stitch presser device for stockinette knitting machines. 4. The stitch suppressing presser device for a horizontal stockinette knitting machine according to claim 1, characterized in that the movement resistance of the substrate relative to the slider is increased.