RU2585571C1 - Unit of guide elements and device for stitching jersey fabric using said unit - Google Patents

Abstract

FIELD: textile.

SUBSTANCE: group of inventions relates to production of jersey fabrics, namely to the guide element unit and looping device using said unit, and can be used for automation of the process of knitting using spatial manipulator. Guide element unit comprises a set of panels, each being provided with at least one rod guide element (1). Said panel set comprises: at least one transverse-movable panel (2) installed with possibility of linear motion in plane perpendicular to axes of guide elements (1), and at least one lengthwise-movable panel (3) installed with possibility of straight-line movement along axes of guiding elements (1). Looping device comprises this unit of guide elements and at least one controlled manipulator with at least one working tool for thread handling.

EFFECT: technical result provides the possibility of unit reconstruction due to change of relative position of guide elements, which in turn provides improved universality of looping device with the possibility of producing webs of different sizes, shape and configuration, as well as faster looping due to possibility of unit reconfiguration during looping.

10 cl, 16 dwg

Description

The group of inventions relates to the field of production of knitted fabrics, namely to a block of guide elements and a looping device for a knitted fabric using this block, and can be used to automate the knitting process using a spatial manipulator.

The block of guide elements ("needle bar") is designed to accommodate the thread in the process of looping knitted fabric using a working tool.

The prior art various blocks of guide elements designed for hand knitting. Such blocks contain a base and rod elements fixed on it. Moreover, these elements are placed in the form of a rectangle, circle, spiral, etc. (see, for example, the description of the knitting device “Express knitting machine” http://www.nancysnotions.com/product/addi+express+professional+knitting+machine.do).

In the prior art, a block of guide elements and a device for looping using a manipulator (see Westgarth M.'s article “Machynlleth Mini Maker Faire to include knitting robot” published on 08/23/2013 at http: //craftihub.wordpress .com / 2013/08/23 / machynlleth-mini-maker-faire-to-include-knitting-robot / - the closest analogue). The known block is made in the form of a round (annular) base (panel) with rod guiding elements placed at the base. Moreover, the specified base is made to rotate in a horizontal plane. The loop forming device comprises said block, as well as two manipulators controlling knitting tools.

A disadvantage of the known device is its low versatility in terms of sizes and configurations of knitted fabrics formed.

The objective of the claimed group of inventions is to create a universal block of guide elements and using this block looping device.

The technical result of the group of inventions is the possibility of rebuilding the block by changing the relative position of the guide elements, which in turn provides increased versatility of the looping device in terms of the possibility of forming paintings of various sizes, shapes and configurations. As an additional result, an increase in the rate of loop formation is achieved due to the possibility of rebuilding the block during loop formation.

The specified technical result is achieved in the claimed block of guide elements due to the fact that it contains panels, each of which is equipped with at least one rod guide element, while the block includes:

at least one transverse movable panel mounted with the possibility of rectilinear movement in a plane perpendicular to the axes of the guide elements,

and at least one longitudinally movable panel mounted with the possibility of rectilinear movement along the axis of the guide elements.

In addition, the specified technical result is achieved in private options for the implementation of the block due to the fact that:

- the unit further includes at least one fixed panel;

- the unit further includes at least one rotary-movable panel made for rotational movement;

- said panels include a base with holes and said rod guide elements located in the holes, each of which is provided with a protrusion at the end, as well as a prismatic groove made along the axis of the element;

- at the base, wedge-shaped cutouts are additionally made, which are a continuation of the holes and combined with the grooves of the guide elements;

- these panels are combined into modules;

- the block contains a Central module comprising two pairs of fixed panels arranged in parallel, transverse-movable panels placed between the fixed panels with the possibility of rectilinear movement along the fixed panels, longitudinally-movable panels placed between the pairs of fixed panels, side modules including fixed panels, oriented parallel to the fixed panels of the central module, and transversely movable panels made with the possibility of linear movement along the fixed panels shackles modules.

The specified technical result is achieved in the claimed device looping knitted fabric due to the fact that it contains the described block of guide elements and at least one controlled manipulator with at least one working tool for manipulating the thread.

In addition, the specified technical result is achieved in private implementations of devices due to the fact that:

- as working tools for manipulating the thread, at least one tool selected from the group including: a tool for laying the thread on the guide elements, one working tool for removing the thread from the guide elements, a tool for shifting the thread along the guide elements;

- said working tools are controlled by one manipulator or several separate manipulators.

The invention is illustrated by drawings, where:

in FIG. 1 shows the best design option of the claimed block;

in FIG. 2 shows a diagram of the formation of a closed fragment of the canvas;

in FIG. 3 shows a diagram of the simultaneous formation of three closed canvases;

in FIG. 4 shows a fragment of a panel;

in FIG. 5 shows a mechanism for moving transversely movable panels;

in FIG. 6 shows a diagram of a set of a first row of loops;

in FIG. 7 shows the position of the thread in the collection of the lower row of loops;

in FIG. 8 shows a diagram of a set of upper row of loops;

in FIG. 9 shows a pickup diagram for the bottom row of loops;

in FIG. 10 shows a lowering pattern for the upper row of loops;

in FIG. 11 shows a diagram of a set of the upper row of loops after lowering;

in FIG. 12 shows a working tool for removing thread;

in FIG. 13 shows a working tool for laying yarn;

in FIG. 14 shows a diagram of using a working tool for laying a thread;

in FIG. 15 shows a working tool for shifting the thread;

in FIG. 16 shows a pivoting support.

Elements of the drawings are indicated by the following positions:

1 - guide element

2 - transversely movable panel

3 - longitudinally movable panel

4 - fixed panel

5 - electric drive

6 - guide

7 - roller

8 - cam

9 - base

10 - protrusion of the guide element

11 - the upper part of the guide element

12 - groove guide element

13 - lower part of the guide element

14 - cutout of the base

15 - central module

16 - side module

17 - canvas

18 - canvas thread

19 - a working tool for removing thread

20 - a working tool for laying the thread

21 - guide rollers

22 - a working tool for shifting the thread along the guide element

23 - rotary-movable panel

24 - rotary element

25 - rotation drive.

In the General case, the claimed unit includes a set (a number of) typesetting panels, i.e. panels for a set of web loops on them. Each of the panels is provided with at least one rod-guiding element (1) (finger) (see Fig. 1, 4). Moreover, this set of panels includes at least one movable panel (2) installed with the possibility of rectilinear movement relative to other panels in a plane perpendicular to the axes of the guide elements (hereinafter referred to as “transversely movable panel (2)"), as well as at least at least one movable panel (3) installed with the possibility of rectilinear movement relative to other panels along the axis of the guide elements (1), i.e. with the possibility of lowering the guide elements (hereinafter referred to as "longitudinally movable panel" (3)).

In the context of this application, the terms “transverse” and “longitudinal” characterize the direction of movement relative to the axes of the guide elements (1).

The block may also comprise at least one fixed panel (4), relative to which the movable panels (2) and (3) move.

In addition, the block may include at least one rotary-movable panel (23) made with the possibility of rotational movement (see Fig. 16). In this case, the axis of rotation may or may not pass through the panel itself.

These panels can have any geometric configuration (the location of the guide elements), in particular rectilinear, curvilinear, rectangular, L-shaped, annular (closed or open). It is also possible that the panels have a three-dimensional shape, for example cubic, while the guide elements (1) are fixed on the faces of the specified cube.

Cross-movable panels (2) are driven by electric drives (5), consisting of stepper motors, screw-nut gears, limit switches (not shown in the drawings). In this case, the panels (2) are moved along the tubular guides by means of linear rolling bearings (not shown in the diagram). There are other options for moving panels. The displacement of the transverse-movable panels (2) in a plane perpendicular to the axes of the guide elements, allows to obtain circular knitwear of various diameters. In this case, the displacement of the panels (2) in the process of loop formation itself allows you to create paintings with a variable diameter of the closed surface.

The longitudinally movable (lowering) panels (3) (see Fig. 5a) are mounted on rods (6) placed in the guides, rollers (7) are placed at the ends of the rods (6). The rollers (7) are supported by two trapezoidal cams (8) with an inclined wall, which have the possibility of linear displacement by means of stepwise electric drives (5). The shape of the side wall of the cams (8) and rollers (7) provide vertical movement of the longitudinally movable panels (3) relative to the plane of the fixed panels (4) along the axis of the guide elements (1) due to the lateral movement of the cams (8) (see Fig. 5b ) The offset (lowering) of the longitudinally movable panels (3) along the axis of the guide elements (in particular along the vertical axis) allows the transfer of the imposed web to adjacent modules.

Rotary-movable panels (23) (see Fig. 16) are mounted on the rotary element (24) and are moved using a rotation drive (25).

In a preferred embodiment of the invention, the panels (2, 3, 4) contain a base (9) with holes in which the rod guide elements (1) are installed, placed in parallel. Each guide element (1) has a protrusion (extension) (10) in the upper part (11) (at the end), as well as a prismatic groove (notch) (12) made along the guide element (1) in its lower part (13) . At the base (9), wedge-shaped cutouts (14) are made, which are a continuation of the hole and combined with grooves (12). The cutouts (14) of the base (9) have the same width as the grooves (12) and expand to the edge of the base (9). The protrusion (10) does not allow the thread to fall off spontaneously from the upper part (11) of the guide element (1). The grooves (12) of the guide elements (1) are designed for the entry of a working tool moved by the manipulator, which allows the tool to confidently grab the thread for subsequent removal. Cutouts (14) in the base (12) ensure that the tool enters the groove (12) even if its width is comparable with the accuracy of the manipulator.

In a preferred embodiment of the invention, the described panels (2, 3, 4) of the claimed block are combined into modules.

According to the best embodiment of the invention (see Fig. 1), the block of guide elements comprises a central module (15) and two side modules (16).

The central module (15) includes:

- two pairs of fixed panels (4) placed in parallel,

- transversely movable panels (2) located between the fixed panels (4) of each pair, oriented perpendicular to them and made to move along these panels, and

- a number of longitudinally movable (lowering) panels (3), placed between pairs of fixed panels.

Side modules (16) include:

- fixed panels (4) oriented parallel to the fixed panels of the central module (15), and

- transverse-movable panels (2), made with the possibility of movement along the stationary panels (4) of the side module (16).

When forming closed fragments of a textile web, looping manipulators move cyclically without changing direction. In this case, the configuration of the formed web (17) is provided by the relative location of the typeset panels (see Fig. 2).

The described design of the modules allows to produce simultaneously several fragments of both circular knitting and flat knitting type. This can be useful in the manufacture of complex cross-sectional products. In FIG. 3 shows a diagram of the simultaneous manufacture of three paintings (17) on the central (15) and side (16) modules.

Other configurations of the modules are also possible, in particular, the module can be made in the form of a chain consisting of non-rigidly connected panels that are links in this chain. In this case, the panels have the ability to linearly move relative to any common point.

The claimed block of guide elements can be used in devices for looping a knitted fabric, which in addition to this block contain at least one spatial manipulator with at least one working tool for manipulating the thread. As working tools, tools are used to set (lay the thread), remove and shift the thread along the guide elements, as well as their combination. These tools can have various configurations. The working tool for removing the thread (19) may be a hook consisting of a longitudinal rod and two transverse rods connected to it and perpendicular to it (see Fig. 12). The working tool for laying the thread (20) can be a hollow cylinder (closed or open) (Fig. 13a and 13g), a set of rings (Fig. 13b), a spring (Fig. 13c), etc. At the same time, a thread is transported in the hole of the tool (20), transported by means of guide rollers (21) (see Fig. 14).

The working tool for displacing the thread (22) can be a hollow cylinder of a diameter larger with respect to the tool (20), sufficient for the guide element (2) to pass into the hole of the tool (22) (see Fig. 15). To shift the thread, the specified tool (20) is put on the guide element (1). In addition, it is possible that the tool for shifting the thread is made in the form of a set of plates (individual or on a common base) passing between the guiding elements (not shown in the drawings).

These tools can be controlled by one or several manipulators.

In the particular case, the device may contain several separate manipulators with the appropriate tools:

- typesetting manipulator (MN) for laying the thread on the guiding elements;

- withdrawal manipulator (MS);

- a manipulator for shifting the thread along the guide elements.

The following is an example of the operation of the looping device using the claimed block of guide elements.

After turning on the device, manipulators (MN, MS, displacement manipulator) with working tools are brought to the initial position.

Cross-movable panels (2) are moved to the desired position corresponding to a given configuration and size of the future knitwear.

An MN with a working tool (20) that implements a set of threads (18) lays the thread (18) on the guide elements (1) of the typeset panels (see Fig. 6). A set of threads is carried out around the fixed guide elements (1) (for example, from left to right) to the lower part (12) of the panel in which the groove (12) is made. In this case, the thread is laid in such a way that on the side of the guide elements (1), on which the grooves (12) are made, after the passage of the knitting tool, the thread was placed in one row (Fig. 7a), and on the back side in two rows (Fig. 7b).

After a set of threads on the lower part (12) of the required number of elements (1) of the longitudinally movable panels (4), the MH re-sets the threads (18) on their upper part in the same way (see Fig. 8). In the case of circular knitting, a second pass is carried out without changing direction. For flat knitting fabric fragments, the passage is carried out in the opposite direction. Thus, each element (1) of the panel (4) is twisted with a thread (18) twice.

Further, the MS with the working tool (19) performs the reset of the lower row of the thread (18) through the elements (1). The working tool (19) sequentially goes into the groove (12) of each element (1), captures the thread (18) (Fig. 9a) and throws it through the element (1) (Fig. 9b).

Then, using the appropriate working tool (21), the upper row of loops is shifted to the lower part (see Fig. 10).

Next, a set of the next row of threads (17) is made using MH on the upper part of the elements (1) (see Fig. 11).

After this, the thread of the lower row is reset in a similar way, and so on.

This example reveals only one of the options for using the claimed unit. Other options for implementing the looping process are also possible.

Thus, in contrast to the known analogues, the claimed block of guide elements has the ability to change the relative position of the elements, which allows expanding the capabilities of the technology for knitted fabrics, increasing the versatility of the device in terms of the possibility of forming fabrics of various sizes, shapes and configurations, as well as increasing the speed of loop formation.

It should be noted that the claimed invention is not limited to particular embodiments described in the description. Other configurations of the claimed devices are possible in the scope of the proposed set of essential features.

Claims (10)

1. The block of guide elements of the looping device of the knitted fabric containing panels, each of which is equipped with at least one rod guide element (1), characterized in that the block includes:
at least one transversely movable panel (2) installed with the possibility of rectilinear movement in a plane perpendicular to the axes of the guide elements (1), and
at least one longitudinally movable panel (3) installed with the possibility of rectilinear movement along the axis of the guide elements (1). 2. The block according to claim 1, further comprising at least one fixed panel (4). 3. The unit according to claim 1, further comprising at least one rotary-movable panel made with the possibility of rotational movement. 4. The unit according to claim 1 or 2, in which said panels include a base (9) with holes and said rod guide elements (1) located in the holes, each of which is provided with a protrusion (10) at the end, as well as a prismatic groove (12 ) made along the axis of the element (1). 5. The block according to claim 3, in which, at the base (9), wedge-shaped cutouts (14) are additionally made, which are a continuation of the holes and combined with the grooves (12) of the guide elements (1). 6. The unit according to claim 2, wherein said panels (2, 3, 4) are combined into modules. 7. The block according to claim 6, containing:
the central module (15), including two pairs of fixed panels (4) arranged in parallel, transverse-movable panels (2) placed between the fixed panels with the possibility of rectilinear movement along the fixed panels, longitudinally movable panels (3) placed between the pairs of fixed panels (4), side modules (16), including fixed panels (5) oriented parallel to the fixed panels (5) of the central module, and transversely movable panels (2) made with the possibility of linear movement along the fixed panels firs (5) of the side modules (16). 8. A device for looping a knitted fabric containing:
block guide elements according to any one of paragraphs. 1-7 and
at least one controlled manipulator with at least one working tool for carrying out manipulations with the thread. 9. The device according to claim 8, which as a working tool for manipulating the thread includes at least one tool selected from the group including: a tool for laying the thread on the guide elements, a working tool for removing the thread from the guide elements, a tool for displacement of the thread along the guide elements. 10. The device according to claim 9, in which said working tools are controlled by one manipulator or several separate manipulators.

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