JPH0366416B2 - - Google Patents

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 restraining 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 predetermined amount of reciprocating section. Correspondingly, the conversion operation was performed by directly colliding or sliding the vertical conversion operation section of the presser against some control member provided at the reciprocating end position.

(Problems 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 presser is also adjusted. It is necessary to make adjustments 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 provides a direction change operation of the carriage at the reciprocating end during knitting, without providing a control mechanism for the up-down conversion operation of the presser at both end positions during knitting operation. The vertical position of the presser is changed in conjunction with the initial movement of the presser, and a set of presser devices consisting of at least one pair of pressers and a board provided with a mechanism for changing the vertical position thereof are connected to a knitting carriage. It is provided so that it is moved in the same direction as the carriage via a slider that engages and disengages with a protrusion that moves integrally, and operates the vertical position conversion mechanism of the presser in conjunction with the movement of the slider at the beginning of the direction change of the carriage at the reciprocating end. It is characterized by being made to do.

(Function) In the present invention, as illustrated in the examples,
A board 1 provided with at least one pair of pressers 2a, 2b and a mechanism 3 for changing the vertical position thereof moves in the same direction as the carriage via a slider 5 engaged with a protrusion 4 that moves together with the carriage, At the initial stage when the carriage changes direction at the knitting end, the movement of the slider 5 causes the swinging piece 10 to be reversed by the vertical conversion mechanism 3 consisting of the cam engagement shown in FIG. 1 or the gear transmission mechanism shown in FIG.
This function converts the vertical position of pressers a and 2b, and does not require any control mechanism equipment at both end positions, and is directly linked to the direction changing operation of the carriage, so it can be used to change the vertical position of the presser even when the knitting width changes. The vertical position of the presser can be automatically changed without requiring any adjustment.

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

In Fig. 1, reference numeral 1 denotes a board on which two pressers 2a and 2b that move up and down for forward and backward movements, and a mechanism 3 for converting the vertical position thereof are installed, and the board 1 has supports attached to both ends thereof. The member 1a is movably supported by a fixed rail 7 installed above the needle bed of the knitting machine along the length of the needle bed, and the width is wider than the distance between the supporting members 1a and 1a on both sides. A narrow slider 5 is movably supported by a fixed rail 6, and a projecting piece 4 that reciprocates together with a knitting carriage (not shown) is removably fitted into a recess 6 on the upper surface of the slider 5, and its engagement At this time, the slider 5 is first moved in the same direction by the movement of the protruding piece 4, and after the slider 5 collides with one of the supporting members 1a, the substrate 1 is carried in the same direction via the slider 5, When the slider 5 and the substrate 1 move together in the direction of the arrow in FIG. 1, the presser 2a on the left side is moved down to suppress stitches, and the presser 2b on the right side is moved up to the rest position.

The pressers 2a and 2b are each attached to the lower end of the lifting piece 8, and the lifting piece 8 is moved up and down according to the groove of the groove member 9 attached to the board 1. By engaging the pins 12 with the elongated holes 11 at both ends of the swinging piece 10 supported by the support 10a, the left and right pressers 2 are rotated by reversing and tilting the swinging piece 10.
Convert the positions of a and 2b to each other.

Also, as an operating mechanism 3 for changing the vertical position of the pressers 2a and 2b by reversing and tilting the swinging piece 10, the upper edge cams on both sides of the shaft support 10a of the swinging piece 10 correspond to the operating piece 13 attached to the lower edge of the slider 5. Side 1
4 and 14 were formed symmetrically.

Thus, when the projection 4 moves in the direction of the arrow as the carriage moves to the left as shown in FIG. elastic piece 1b embedded in
The substrate 1 is carried in the same direction by the presser 2a in the downward movement position, and the stitch suppression operation is performed by the presser 2a in the downward movement position.
3a to suppress the outer end 14a of the cam surface 14 of the swing piece 10, so that the presser 2a in the operating state is fixedly held in that state.

Then, when the carriage changes direction at the knitting end, the protrusion 4 moves in the opposite direction to the direction indicated by the arrow in FIG.
The elastic material 1 of the other support member 1a moves to the right in the figure within the interval between the support members 1a, 1a of the substrate 1.
When the slider 5 moves in reverse, the operating piece 13 acts on the cam surface 14 of the swinging piece 10 and rotates the swinging piece 10 clockwise in the figure. The presser 2a on the left side moves upward and becomes the inoperative position.
The presser 2b on the right side is switched to the downward operating position, and the outer end 14a of the cam surface 14 on the opposite side is pressed by the end 13a of the operating piece 13 to hold and fix it in the operating position.

Although the cam surface 14 of the swing piece 10 is arcuate, it may be formed into an inclined straight line.

Furthermore, in order to prevent the slider 5 and the substrate 1 from moving simultaneously during the initial operation of moving the slider 5 in the same direction by engagement with the protruding piece 4, a light brake is applied to the sliding portion of the fixed rail 7 and the support member 1a. A pressure is applied by a spring 16 to the sliding member 15 interposed between the support member 1a and the rail 7 so as to give the following.

Note that the protrusion 4 on the carriage side with respect to the slider 5
is engaged with and disengaged from the recess 6 of the slider 5 by an appropriate means as shown by the phantom lines in the figure, and the presser device can be placed in a resting state by its disengagement.

Further, for a double cam type knitting machine, two protrusions 4 on the carriage side are provided corresponding to the arrangement of the knitting cam, and two protrusions 4 of the presser device are provided correspondingly.
It is only necessary to install sets in series, and 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 includes a board 1 on which two sets of presser devices consisting of a pair of pressers 2a and 2b are installed side by side at a predetermined interval.
is slidably provided on the fixed base 7 by support members 1a, 1a on both sides, and a pair of front and rear sliders 5a, 5b is provided between the support members 1a, 1a, and the front slider 5a is provided with support members 1a, 1a. 1a, the rear slider 5b is slidably overlapped with the front slider 5a by a pin 17 and an elongated hole 18, and a recess 6 provided at the upper edge of both ends of each slider,
6 to engage and disengage the protrusions 4, 4 on the carriage side, and in the engaged state, the sliders 5a, 5b are taken in the same direction by the movement of the protrusions 4, 4, and the front slider 5a and both side support members 1a, 1a, the board 1 is taken along with it. For example, when moving the protrusions 4, 4 in the direction of the arrow in FIG. The rear projecting piece 4 is located at the mouth edge of the right recess 6 of the rear slider 5b, but is separated from the mouth edge of the recess 6 of the front slider 5a. In this way, the positions of the recesses 6, 6 of both sliders 5a, 5b are disposed mutually displaced, and when the protrusions 4, 4 move, the protrusion 4 at the front in the moving direction is displaced from the recesses 6, 6 of both sliders. 6
, and is located at the mouth edge of the recess 6 of one slider with respect to the rear protrusion 4 in the moving direction, but is separated from the mouth edge of the recess 6 of the other slider.

Each pair of pressers 2a and 2b in the two sets of presser devices provided on the substrate 1 is configured to change its vertical position by reversing and tilting the swinging piece 10 which pivotally supports the intermediate 10a, as in the previous embodiment. As the simultaneous conversion operation mechanism 3 for both sets, a rotary piece 19 is pivotally supported between the two sets of presser devices, teeth 20 are provided on the upper circumferential edge of the rotary piece 19, and a pivot piece 19 is provided on the support plate 21 integrated with the front slider 5a. The pinion 22 supported by the tooth 2
Further, the rack 23 that meshes with the rear slider 5b on the opposite side of the pinion 22 is fixed, and both ends of the operating lever 24 attached to the rotation shaft of the rotation piece 19 are connected to the pin 25 and the elongated hole 26. The inner pressers 2b, 2a of the two sets of presser devices are connected to the attached elevating pieces 8, 8, and as the operating lever 24 rotates, the various inner pressers 2b, 2 are
The vertical relationship of the outer pressers 2a, 2b of each set is changed by changing the vertical relationship of the outer pressers 2a, 2b by reversing and tilting the swinging pieces 10, 10 on both sides in conjunction with this. Thus, when the board 1 is carried along with the sliders 5a and 5b in the direction of the arrow in FIG. 4 as the knitting carriage moves, the left pressers 2a and 2a of the two sets of presser devices are in the lower operating state. , the pressers 2b, 2b on the right side move in the upper rest state, and the protrusions 4, 4 on the left side move in the direction opposite to the direction of the arrow at the initial stage when the carriage changes direction at the left end of movement in the direction of the arrow. is separated from the edges of the recesses 6, 6 of both sliders, and the right protrusion 4 collides with the edges of the recesses 6 of both sliders 5b and carries the slider 5b to the right. After colliding with the edge of the recess 6, both sliders 5a and 5b are brought to the right by the protruding piece 4.

When the rear slider 5b moves to the right at the beginning of the direction change movement of the projection piece 4, the rack 23 integrated therewith rotates the pinion 22, and the pinion 22 further rotates the rotation piece 19. By tilting the operating lever 24, the vertical position of each presser 2a, 2b of the two sets of presser devices is simultaneously converted as described above, and in this conversion operation, the front and rear sliders 5a, 5b are moved in a position opposite to the state shown in the fourth figure. In relation to this, the left side concave portion 6 of both sliders,
With the mouth edge of No. 6 displaced, the pressers 2b and 2b on the right side of each set enter the lower operating state and move to the right to suppress the stitches, and when the right side movement end is reached, the above-mentioned operation is performed in the conversion operation. By repeating this, that is, by moving the rear slider 5b to the right and left using the protrusion 4 at the beginning of the direction change operation, the rack 2 is moved.
3, pinion 22, rotating tooth piece 19, operating lever 2
4 is activated to convert the pressers 2a and 2b.

In the illustrated example, the rotating piece 19 is a circular plate, but it is optional to use a fan-shaped plate or the like.

Also in this embodiment, in the initial stage of changing the direction of movement, only the rear slider 5b is moved and the supporting members 1a, 1a and 1a on both sides of the substrate 1 are used to brake the movement so that the passive part corresponding to the rack 23 does not move. An elastic spring 1 is installed between 1a and the rail 7.
6 was interposed. 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 operating source, and the base plate of the presser device is carried along via the slider by the protruding piece that moves together with 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 conversion mechanisms that act on the presser device at both ends of the presser device as in the conventional case. Therefore, when the knitted fabric width changes, there is no need for any means to adjust the position of the converting mechanism at both ends, and the adjustment of the stitch holding operation can be achieved at the same time by only automatically adjusting the amount of reciprocating movement of the carriage, thereby increasing the automation of the knitting machine. Furthermore, it has the effect that maintenance operations of the equipment of the knitting machine can be significantly simplified.

[Brief explanation of drawings]

The drawings show an embodiment of the device of the present invention.
The figure is a front view, FIG. 2 is a side view taken along the line 1 in FIG. 1, FIG. 3 is a side view taken along the same line, FIG. 6 is a partially cutaway plan view, FIG. 6 is a sectional view taken along the line 4, FIG. 7 is a sectional view taken along the same line, and FIG. 8 is a sectional view taken along the same line. 1... Board, 2a, 2b... Presser, 3...
...Presser vertical position conversion mechanism, 4... Protrusion piece,
5, 5a, 5b...Slider.

Claims (1)

[Claims] 1. A set of presser devices consisting of at least one pair of pressers and a board provided with a mechanism for changing the vertical position of the pressers are connected via a slider that engages and disengages from a protrusion that moves together with a knitting carriage. A horizontal stockinette knitting machine, characterized in that the presser is moved in the same direction as the carriage, and the 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 stockinette knit 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 suppressing presser device on the machine. 3. 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 gear transmission mechanism is provided between the slider and the swinging piece. Stitch presser device for knitting machines. 4. The stitch suppressing presser device for a horizontal stockinette knitting machine according to claim 1, wherein the movement resistance of the substrate relative to the slider is increased.