JPH03185161A - Device for controlling stitch cam in flat knitting machine of glove knitting machine or the like - Google Patents

Abstract

PURPOSE:To make carriage light-weight and set a stitch cam to arbitrary height by removing a stitch cam control device from a carriage and controlling the stitch cam by operating means capable of continuously, gradually and vertically moving a stitch cam control bar. CONSTITUTION:An eccentric cam 24 fitted to a main shaft 25a by a pulse signal sent to a step motor 25 is rotated and a fixing pin 31 attached to a stitch cam control bar 21 is moved into a long groove of the eccentric cam 24 and the stitch cam control bar 21 is raised or lowered. An operation lever 15 moves an operation plate 10 through a roller 17 against forced spring accompanied by the movement of a stitch cam bar 21 and a stitch cam 7 of a carriage 4 is moved through an assistant plate 8.

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to a stitch control device in a flat knitting machine, and more particularly to a stitch control device in a flat knitting machine for glove knitting, etc., which is effective in adjusting the stitch width of knitting machines with narrow knitting widths, such as glove knitting and hosiery knitting. .

[Conventional technology]

Generally, in flat knitting machines, in order to adjust the stitch size, a stitch control device consisting of various mechanisms is mounted on the carriage, and this stitch control device is operated as necessary to move the stitch pile provided on the carriage up and down. to set the desired strength. However, as is well known, the carriage of a flat knitting machine repeatedly travels and turns over at high speed above the needle bed, so a heavy carriage equipped with a stitch control device
The influence of inertial force could not be ignored. Therefore, in knitting machines for knitting gloves and socks, in which the carriage travels and reverses over a narrow range, there is a natural limit to the high speed of running with conventional stitch control means, which also poses a problem in terms of production efficiency. Therefore, in consideration of these points, for example, in order to adjust the stitch strength from outside the carriage, a stitch control bar is installed above the needle bed along the left-right running direction of the carriage, and this stitch control bar is activated. A dowel control device has also been developed in which the dowel control bar is moved up and down by sliding diagonally up and down using a mechanism, and each dowel is moved up and down via an interlocking rod connected to the dowel control bar. ing. The operating mechanism of the above-mentioned dowel control device is such that one end of the dowel control bar is slidably supported by a support mechanism, and the other end is connected to one end of the protrusion detection member via a connecting rod such as a wire. The other end of the protrusion detection member is brought into contact with protrusions formed at predetermined intervals on the circumference of the control drum, and one end of the protrusion detection member is brought into contact with protrusions of different predetermined heights by the operation of the control drum. The dowel control bar is moved up and down by a predetermined height (distance) via the connecting rod depending on the height of the abutted protrusion, thereby controlling the dowel.

[Problem to be solved by the invention]

However, in the operating mechanism of the conventional dowel control device, the mechanism for controlling the dowel is complicated due to its configuration, and the protrusion, which is a dowel control cam, formed on the control drum is attached to the circumference of the control drum. Since they are formed at predetermined intervals on the top, the thickness can only be adjusted intermittently during knitting. In addition, the protrusions of the cam for controlling the stitches formed on the control drum were only formed with different heights at predetermined intervals, so the size of the stitches could only be adjusted to a few types. Ta. The present invention has been developed in view of the above-mentioned points, and its purpose is to reduce the weight of the carriage, to make it possible to operate the dowels provided on the carriage from outside the carriage, and to increase the height of the carriage at any desired height. To provide a stitch control mechanism for a flat knitting machine such as a glove knitting machine, which can set stitches in the desired size and sequentially form stitches of a desired size.

[Means to solve the problem]

Therefore, in order to effectively achieve the above object, the present invention has the following configuration. That is, a carriage that runs left and right is provided above the needle bed where many needles are arranged side by side, and a long groove is formed in the bottom plate of this carriage in a V-shape, and the stitches are set within the range of this long groove. Each spring is provided on the carriage so that each of the above-mentioned dowels is always pulled downward by the spring of each spring, and an actuating member is connected to each dowel, and each actuating member is connected to the actuating member. A roller is pivotally attached to the lower part, and each operating member is supported so as to be movable up and down, and each of the rollers protrudes outward from the lower end of the carriage, and as the carriage moves left and right, each of the rollers is constantly moved. A tension control bar is arranged along the traveling direction of the carriage so as to be in contact with the carriage,
Furthermore, an actuating means that can continuously move the heel control bar up and down is provided on the bed body side, and the operation of this actuating means causes the heel control bar to be gradually moved up and down, and each This configuration allows the dial to be set at a desired position.

[Effect]

With the above configuration, the actuation means provided outside the carriage is actuated to raise the dowel control bar, and the actuating member connected to the dowel is moved upward via the roller on the carriage side that comes into contact with the dowel control bar. move it to In conjunction with the movement of this actuating member, the power level moves upward, allowing the power level to be set smaller. Also, actuating the actuating means to lower the height control bar;
By moving the actuating member downward via a roller on the carriage side that comes into contact with the dowel control bar, the dowel moves downward in conjunction with this movement, making it possible to set a large dot. Of course, since the actuating means is designed to allow the adjustment bar to be moved up and down continuously and gradually, the adjustment bar can be set at any desired height.

【Example】

Hereinafter, one embodiment of the present invention will be described based on FIGS. 1 to 3. 1 is a bed main body of a flat knitting machine, 2 is a front and rear needle bed mounted on this bed main body 1, and a large number of needles 3 are arranged in parallel on the upper surface of both needle beds 2. Further, above both needle beds 2, a carriage 4 is provided so as to run in the left-right direction of the bed main body l.
(front carriage, rear carriage) are arranged above the front and rear needle beds 2 so as to operate the needles 3. On the bottom plate 5 of the carriage 4 facing the needle 3 on the needle bed 2,
L pairs of long grooves 6 are opened in a V-shape, and a dowel 7 is provided on the needle bed side of each long groove 6. In this embodiment, an auxiliary plate 8, an actuating plate 10, and an actuating rod 15, which will be described later, are connected to these armatures 7 as actuating members. That is, each thread 7 is slightly thicker than the thickness of the bottom plate 5,
The auxiliary plate 8, which is about half the length of the long groove 6, is attached with a screw 9 to a degree Li1.
This auxiliary plate 8 moves within the long groove 6 when the thread 7 moves. An actuating plate 10 is fixed to the auxiliary plate 8 with screws 11. That is, an actuating plate 10 slightly larger than the long groove 6 is disposed inside the carriage, and is fixed to the auxiliary plate 8 along the long groove 6 with screws 11. Each arm 7 is attached to the bottom plate 5 by the auxiliary plate 8, the operating plate 10, and each screw 9, 11 as described above, and is movable diagonally up and down on the bottom plate 5. Further, a locking screw 12 that locks one end of a spring 14, which will be described later, is fixed to a side surface 10a of the actuating plate 10. Also, diagonally below the mounting position of this locking screw 12 along the long groove 6, another locking screw 13 for locking the other end of the spring 14 is fixed to the bottom plate 5. As mentioned above, both ends of the spring 14 are respectively locked in both locking screws 12 and 13, and the resilient force of the spring 14 constantly urges the dowel 7 toward the lower end side of the long groove 6. has been done. Further, the actuation plate IO is attached with an abbreviated actuation rod 15, and the upper end 15a of the actuation rod 15 is connected to the lower end 10b of the actuation plate 10 via a screw 16. Further, a roller 1 is rotatably attached to the bent portion 15b of the operating rod 15.
7 is the pivot point. Furthermore, the other end 15c of the operating rod 15 is
It is pivotally supported on the bottom plate 5 by a support bolt 20, and an operating rod 15
can swing freely around the pivoted support pole 120 position as a fulcrum. Further, the roller 17 moves up and down together with the operating rod 15,
It protrudes downward from the lower end 5a of the bottom plate 5 so as to roll on a thread control bar which will be described later. The tension control bar 21 is provided along a guide rail 18 arranged in parallel in the carriage running direction so that the roller 17 always comes into contact with and rolls as the carriage 4 moves left and right. Further, the tension control bar 21, which is moved up and down by an actuating device 26 of this embodiment which is an example of an actuating means to be described later, has elongated holes 22 opened diagonally up and down at predetermined intervals. An engagement pin 23 is loosely fitted into the hole 29, and when the arm control bar 21 is operated, the arm control bar 21 is guided by the retaining pin 23 and moves diagonally up and down. As an actuating device 26 for operating the above-mentioned height control bar 21, a step motor 25 is fixed to a bracket 27 attached to the bed body side with its main shaft 25a facing upward, and an eccentric cam 24 is attached to this main shaft 25a. is fitted. An upper shaft portion 25b protruding from the eccentric cam 24 is engaged with a long hole 29 opened at the end of the thread control bar 21. The elongated hole 29 is formed diagonally in the vertical direction, similar to the elongated hole 22 formed in the thread control bar 21. Further, the eccentric cam 24 is formed so that its outer diameter gradually increases, and a long groove 30 is formed along the inside of its outer periphery. This long groove 30 is also formed so as to gradually move away from the center (main shaft 25a fitting position) as the outer diameter of the eccentric cam 24 increases. Further, the engagement pin 31 that is loosely fitted into the long groove 30 is fixed so as to protrude downward from the lower surface of the thread control bar 21, and the eccentric cam 24 rotates with the rotation of the main shaft 25a of the step motor 25. By,
The engagement pin 31 moves within the long groove 30 of the eccentric cam 24. As a result, the tension control bar 21 to which the engagement pin 31 is fixed moves up and down. Further, 32 is a curved piece portion formed to protrude outward from the outer peripheral edge of the eccentric cam 24. Also, the bracket 2
A sensor (proximity switch) 33 is attached to 7, and this sensor 33 detects the curved portion 32 of the eccentric cam 24 to detect the zero setting position of the dowel 7. To explain the operation of the stitch control mechanism according to the present invention having the above-mentioned configuration, in order to select the stitch of knitting to be knitted, by sending a desired pulse signal to the step motor 25, the step motor is activated by the number of pulses. 25
The main shaft 25a rotates (displaces). Due to the rotation of the main shaft 25a, the eccentric cam 24 fitted on the main shaft 25a also rotates by the amount of rotation of the main shaft 25a. teeth,
It moves within the long groove 30 of the eccentric cam 24. Along with this movement, the tension control bar 21 rises or descends, and due to this movement, the position of the main shaft 25a of the step motor 25 within the elongated hole 22 of the tension control bar 21 is shifted, and the main shaft 25a and the above-mentioned engagement pin 31 are dislocated. The distance between becomes farther or closer. For example, when the engagement pin 31 is located in the long groove 30 closest to the main shaft 25a as shown in FIG. It is located at the top of the . At this time, the weight control bar 21 is in a lowered state. Therefore, the operating rod 15 descends downward using the pivot point of the other end 15C as a fulcrum via the roller 17 guided by the mountain control bar 21, and moves through the operating rod I5, the operating plate 10, and the auxiliary plate 8. The connecting threads 7 are in a state where they are pulled downward along the long grooves 6 by the resilient force of the springs 14. By moving the carriage 4 in this state, the largest stitch is knitted. Next, a pulse signal is sent to the step motor 25, and the main shaft 25a of the step motor 25 is
2, the eccentric cam 24 also rotates by the rotation of the main shaft 25a, and the engagement pin 31 moves within the long groove 30 of the eccentric cam 24. This causes the tension control bar 21 to rise diagonally upward. At this time, as the mountain control bar 21 rises, the actuating rod 15 pushes up the actuating plate 10 via the roller 17 against the elastic bias of the spring 14. As the actuating plate 1O moves upward, the dowel 7 moves upward via the auxiliary plate 8. In this way, by operating the stitch control bar 21 using the actuating means provided on the bed body side outside the carriage and moving the stitches 7 provided on the carriage 4 upward, it is possible to knit a small stitch fabric. can. For example, when knitting gloves, socks, etc., by sequentially changing the pulse signals, gloves with a more beautiful finish can be formed. Furthermore, Fig. 1 shows the state of the tension control mechanism when the power is the largest, and Figure 2 shows the state of the power control mechanism when the power is the smallest. You can control the mountain and adjust the strength as you like. Further, in the above embodiment, a device configured to use an eccentric cam and a step motor is illustrated as an actuation means, but the actuation means is not limited to this example, and the adjustment bar is moved up and down by a hydraulic cylinder. Alternatively, the design may be changed so that a motor other than a step motor is used, and the rotary motion of the motor is converted to linear motion via a link mechanism or the like to move the thread control bar up and down. In addition, as long as the tension control bar can be operated up and down from outside the carriage, any configuration can be used as the actuating means. Further, as the actuating member, it is possible to use a member that is integrally formed as a whole, or a member formed by connecting appropriately divided members. In short, any structure may be used as long as the vertical movement of the arm control bar can be transmitted to the arm of the carriage.

【Effect of the invention】

As described above, according to the present invention, the thread control device conventionally mounted on the carriage is removed from the carriage, and
By using an operating means that allows the dowel control bar to be moved up and down continuously and gradually, the dowel control bar installed on the carriage can be operated from outside the carriage, making it possible to reduce the weight of the carriage and minimize the negative effects of inertial force. At the same time, the carriage can be run at higher speeds to further improve production efficiency. In addition, in the past, it was only possible to operate the dowel in stages, and the size of the dot that could be formed was naturally limited to several types.However, with the present invention, the dowel can be operated steplessly (continuously). Since the stitches can be set at any height (position), the stitches of a desired size can be arbitrarily selected and formed. Therefore, for example, in the case of a knitted product that is formed by gradually increasing the stitches, it is possible to form a product with a finer texture and a more beautiful finish. Further, since the stitches of any size can be selected and formed as described above, knitted products with more various designs than ever before can be formed, and more types of knitted products can be manufactured.

[Brief explanation of drawings]

1 and 2 are plan views showing the main parts of an embodiment according to the present invention, and FIG. 3 is a side sectional view of the main parts. ■... Bed body, 2... Needle bed, 3... Needle,
4... Carriage, 5... Bottom plate,
6...Long groove, 7...Degree, 14...Spring, 8.10.15...Operating member (auxiliary plate 7 operating plate. Operating rod) 17...Roller, 21...Degree Mountain control, <-26...
・Operating means (actuating device)

Claims (1)

[Claims] 1. A carriage that runs left and right is provided above the needle bed where many needles are arranged side by side, and a long groove is formed in the bottom plate of this carriage in a V-shape, and the stitches are set within the range of this long groove. Each spring is provided on the carriage so that each of the above-mentioned dowels is always pulled downward by the spring of each spring, and an actuating member is connected to each dowel, and each actuating member is connected to the actuating member. A roller is pivotally attached to the lower part, and each operating member is supported so as to be movable up and down, and each of the rollers protrudes outward from the lower end of the carriage, and as the carriage moves left and right, each of the rollers is constantly moved. A tension control bar is disposed along the traveling direction of the carriage so as to be in contact with the carriage, and an actuation means that can continuously move the tension control bar up and down is provided on the bed body side. 1. A stitch control device for a flat knitting machine for knitting gloves, etc., characterized in that the stitch control bar is gradually moved up and down, and each stitch can be set at a desired position via the operating member on the carriage side.