JPS6135589Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a rotation control device for a take-up roller in a warp knitting machine.

Conventionally, in warp knitting machines, the rotation of the winding roller for winding the knitted fabric is controlled by the spindle and the winding roller in order to determine the driving density of the knitted fabric, that is, the number of needle loops per unit knitting course length. It is set by a combination of two types of gears in a gear device provided between the rollers. On the other hand, among the knitted fabrics knitted by warp knitting machines, fishing nets, panty stitching, and other cylindrical nets require changing the mesh size and elasticity for each course depending on the use. When knitting a knitted fabric, a device is required to change the placement density. Conventionally, as a means for converting the driving density for each course, there is an example of a stepless speed setting device that can steplessly change the speed between a main shaft equipped with a cam for driving a knitting element and a winding roller. This was done by moving the adjustment lever attached to the chain-type continuously variable transmission in stages from a chain drum with chain links via a control lever, but the installation space was limited due to chain links control. However, if you want to convert a precise driving density, it is necessary to prepare a large number of chain pieces in stages, which is uneconomical in terms of production. It was difficult to implement.

The present invention aims to eliminate the above-mentioned drawbacks and provide a control device for the driving density in a warp knitting machine that can easily change the rotation of the take-up roller for each arbitrary course based on the knitting data with a simple operation. It is something to do.

Next, the present invention will be explained in detail based on an embodiment of the device. Fig. 1 is a perspective view showing the winding device portion of the warp knitting machine of the embodiment, 1 is a group of winding rollers, 2 is a knitting needle, 3 is a warp, 4 is a winding roller, 5 is a reduction gearbox, 6 is a driving setting device, 7 and 8 are exchange gears, 9 is a main shaft,
It includes a cam (not shown) that drives knitting elements such as guide bars. A sprocket wheel 10 is provided coaxially with the exchange gear 8 on the input side, and connected to a sprocket wheel 13 fitted on a shaft 12 via a connecting chain 11. A sprocket wheel 14 is fitted onto the main shaft 9, and is connected to a sprocket wheel 16 fitted onto the shaft 15 by a connecting chain 17.
The shaft 12 and the shaft 15 are configured as an output shaft and a control shaft of a chain type continuously variable transmission 18 in the embodiment control device shown in FIG.

In FIG. 2, reference numeral 19 denotes a rotation angle detector, which connects the sprocket wheel 20 coaxially with the shaft 15 and the sprocket wheel 22 through a connecting chain 21.
is connected to. 23 is a pulse motor, and the sprocket wheel 25 on the output shaft 24 of the continuously variable transmission 18 and the pulse motor 23 are connected to the sprocket wheel 28 on the motor shaft 27 by a connecting chain 26. Reference numeral 29 denotes a data plate, which is a fan-shaped plate provided for detecting the gear shift position of the continuously variable transmission 18, and is divided into 60 parts of 120° by 2°. possible to be pivoted. 31 is a data reader which reads holes drilled in the data plate 29 according to the binary scale. Reference numeral 32 is a display lamp that displays the gear shift position.
33 is a card data sensor, and in the case of the example, a Jacquard Draciel machine is used, so
A dropper (not shown) that controls the flanching guide is used to sense the repeat of the pattern course based on the perforation state of the patterned paper. 34 is a detection rod connected to a thread 35, and in the case of the embodiment device,
One of the four wires is used for the synchronization signal, and the other three are used to indicate the middle of the pattern repeat, the approach of the repeat end, and the repeat end by holes drilled on each card of the pattern paper. The current course position is displayed on the display lamp 36 by flashing, and is also input to the control box 37 as a detection signal. The control unit 37 of the embodiment is composed of a well-known microcomputer, and includes a writable PROM and a central processing unit.
CPU, interface holder, driver,
It is composed of well-known sections including an operation panel.

The above is the configuration of the embodiment of the control device of the present invention.Next, its operation will be explained. First, the winding speed change data is written in the PROM of the control box 37 in advance by a writer (not shown). For example, when knitting pant-style pants, the rotation of the winding roller is set to slow down so that the stitching density is gradually increased from the torso to the toes. The PROM in which this input data is written is installed in the control box 37, the knitting machine and the control box 37 are turned on, and when the main shaft 9 is driven by the operation command of the knitting machine, the main shaft 9 is connected to the shaft 15 via the connecting chain 17. Rotation is input to the continuously variable transmission 18, is decelerated according to the initial setting position, and is transmitted from the shaft 12 through the connecting chain 11, from the driving setting device 6 through the reduction gear box 5, and then to the winding roller group 1 and the winding roller 4. Rotate to obtain the desired impact. As the knitting progresses further, the rotation of the main shaft 9 is detected by the rotation angle detector 19 and a signal _S1 is sent to the control box 37, and the set data based on this signal is processed by the computer, and a predetermined pulse is generated at the appropriate time. The number is sent as a signal S ₂ to the pulse motor 23 to give a predetermined amount of rotation, and the shaft 24 is rotated through the connection chain 26 to displace the adjustment lever (not shown) of the continuously variable transmission 18. , the rotation ratio of the input shaft 16 and output shaft 12 is changed. In the example, the input/output ratio of the 30th division out of 60 divisions is 1:1, and when it is 0, it is 1:0.8, and when it is 60, it is 1.2:
The gear ratio is set to 1. Simultaneously with the displacement of the adjustment lever, the data plate 29 rotates one step around the shaft 30, and the drilling data at this position is displayed in a flashing state on the display lamp 32, and a feedback signal _{S3 is} sent.
is input to the control box 37 to prepare for the transmission of the next signal _S2 . Further, by driving a jacquard head (not shown), the pattern paper 38 shown in FIG. However, a hole 39 corresponding to the thread 35 is drilled at one end of this pattern paper 38, and a hole 39 corresponding to the thread 35 is made at one end of the pattern paper 38,
Two holes are drilled in the sheet as an end course _C1 at the positions shown in the figure, and the lower one is a hole for a synchronization signal, which is drilled across all courses. Furthermore, 24 sheets from the 5th sheet in front of the start position S are used as the end approach course C ₂ , with 3 holes drilled as shown in the diagram, and 1 hole drilled on the other courses C ₃ .
The detection rod 3 is detected by the thread 35 corresponding to each hole.
The vertical movement of 4 is selectively performed, and the indicator lamp 36 is blinked based on this drilling data to indicate the drilling state, and the repeat position of the feed pattern data is confirmed in the control box 37 as a signal _S4 . Pattern paper 38
In the middle, the perforations to expose the pattern are omitted.

Based on the composition data set as above,
The rotation point of the pulse motor 23 is controlled by the control signal _S2 from the control box 37, and the rotation speed of the main shaft 9 is gradually changed by the continuously variable transmission 18 according to the knitting data, so that the rotation speed of the winding roller group 1 can be set to an arbitrary course. It will be converted every time. In addition, in this embodiment, the setting of the shift position of the continuously variable transmission 18 is as follows.
This is done by a pulse motor 23, but the DC
Even if a means capable of setting the position is used, such as a motor, the operation of the present invention will not be affected in any way.

Furthermore, in the embodiment, information on the repeat position of the pattern data is perforated in the pattern paper 38, but other methods include inputting the input data itself as perforation information, or inserting the knitting course itself as perforation information. Yes, it can be operated in the same way as in the example.

As described above, the present invention provides a stepless speed setting device related to the take-up roller, and a stepless speed setting device related to the take-up roller in a take-up device for a warp knitting machine that sets the stitching density based on the rotational speed of the take-up roller. It is composed of a connected motor, a control box that controls the rotation of the motor based on set composition data, and a rotation angle detector that is connected to the main shaft and sends a synchronization signal to the control box, Since the rotational speed of the take-up roller is changed for each arbitrary course based on the knitting data, the rotation of the take-up roller based on the knitting data allows for precise driving in which the rotation of the take-up roller corresponds to the stepwise displacement of the driving density of the knitting target. In addition to being able to perform control, there is no need for a device including chain links required for speed change control, so partial driving changes can be made freely on long courses, and there is no need to take up a large space. , the winding control range of the warp knitting machine can be expanded.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing a winding device in a warp knitting machine according to an embodiment of the present invention, FIG. 2 is a schematic perspective view of the apparatus including a signal flow diagram, and FIG. is a plan view of a emblem used on a jacquard head; In the figure, 1... Winding roller, 9... Main shaft, 1
8... Chain type continuously variable transmission, 19... Rotation angle detector, 23... Pulse motor, 37... Control box, 38... Pattern paper.

Claims (1)

[Claims for Utility Model Registration] (1) In a winding device for a warp knitting machine that sets the stitching density by the rotational speed of the winding roller, a stepless speed setting device related to the winding roller; It consists of a motor connected to a setting device, a control box that controls the rotation of the motor based on set composition data, and a rotation angle detector that is connected to the main shaft and sends a synchronization signal to the control box. A rotation control device for a take-up roller in a warp knitting machine, characterized in that the rotation speed of the take-up roller is changed for each arbitrary course based on knitting data. (2) A rotation control device for a winding roller in a warp knitting machine as set forth in claim (1) of the above utility model registration, characterized in that the knitting data is input from the patterned paper to the control box via a detector. .