BG3251U1 - Linear knitting machine - Google Patents

Abstract

This utility model relates to a linear knitting machine which will find application in the light industry and in particular in the knitting industry. The created linear knitting machine comprises a control unit (1), bidirectionally connected to the knitting slide (3) and unidirectionally connected to a first motor (2) for driving the knitting slide (3), with a second motor (5) for driving a rear needle bed (9) and with a third motor (6) for driving the pulling shaft (7). The knitting slide (3) is equipped with a device (4) for selecting a thread guide and with thread guides (14). The device (4) for thread guide selection (14) is unidirectionally connected to the control unit (1). The machine is also equipped with a rail (11) for counting positions when moving the slide. The rail (11) is equipped with a sensor (10) for the starting position of the slide. The sensor (10) for the starting position of the slide (3) is unidirectionally connected to the control unit (1). The knitting machine also includes a fixed, front needle bed (8) and a swivel tensioner (12), functionally connected to a side compensator (13), which in turn is connected to the thread guide (14). The knitting slide(3) is equipped with static stones (15), movable density stones (16), including or excluding a stone for transfer (17) and a receiving stone (18). The movable density stones (16) are made in the shape of an irregular hexagon, on which two of the pairs of opposite sides are parallel.

Description

Field of technology

This utility model relates to a linear knitting machine that will find application in the light industry and in particular in the knitting industry.

BACKGROUND OF THE INVENTION

Textile production has been a craft known to mankind since ancient times. Information about this production, as well as numerous evidences of its existence and development have been found in different parts of the world - in ancient Egypt, the Far East or in the Andes in Latin America. The techniques of thread weaving remain almost unchanged to this day, most of which (cast, twill, diagonal braid, etc.) were invented in antiquity.

In the second half of the 18th century, the first textile manufactories appeared in England, creating the organization and technological sequence in the production of textiles. The appearance of the spinning machine in 1768, the mechanized loom in 1786 and the steam engine marked the beginning of the establishment of textile factories and the industrial production of textiles. From that moment on, the industrial production of textiles and textile products became an important human activity, undergoing constant development and improvement to this day.

The home production of various knits was modernized and became an industry when machines revolutionized knitting. Basically, knitting machines are basically two types of round knitting, which are used for knitting socks, and linear - designed for the production of knitwear. The beginning of the knitting machine was given in 1589 by William Lee. Its machine has a capacity of about 100 stitches per minute. When knitting by hand, the productivity is only 120-150 stitches per minute. Historically, until 1589, man knitted using his hands and various types of devices. During this period, depending on the creativity of the person, all the structures known today are knitted by hand. After 1589, after the discovery of the first knitting machine, only single-sided smooth knits were machine-knitted. After placing additional accessories to the knitting machine, knit double-sided and double-sided knits.

The first knitting machine, made in Bulgaria, was in the 40s of the 19th century from the factory for knitting machines of the Kunevi brothers in Gabrovo. The machine is designed for knitting sweaters and is active and very well preserved. In an effort to meet the needs of the nascent knitting industry in the early 40s of the 19th century, when imports were difficult, Bulgarian entrepreneurs have made attempts to produce our knitting machines. The modern technologically developing knitting industry produces a wide variety of knitting products, which are widely used in everyday life and some technical industries.

Technical essence of the utility model

The task of the utility model is to create an improved linear knitting machine that provides high-quality knitting, by changing the shape of the movable stones for density, to achieve uniform knitting.

The problem is solved by creating a linear knitting machine, which includes a control unit connected in both directions to a knitting sledge and unidirectionally connected to a first motor for driving the knitting sledge. The control unit is connected in one direction to both a second motor for driving the rear needle bed and a third motor for driving the traction shaft. The knitting sledge is equipped with a thread guide selection device and thread guides. The thread selector is connected in one direction to the control unit. The machine is equipped with a rail for counting positions in the movement of the sled, which rail is equipped with a sensor for the starting position of the sled. The sensor for the initial position of the carriage is connected in one direction to the control unit. The machine also includes a fixed front needle bed and a brake, functionally connected to a side compensator, which in turn is connected to the thread guide.

The knitting sled is equipped with static stones, movable stones for densities, including and excluding transfer stone and reception stone. Movable density stones are made

2917 Descriptions to utility registration certificates № 10.1 / 15.10.2019 in the form of an irregular hexagon on which two of the pairs of opposite sides are parallel.

The advantage of the created linear knitting machine is that through the improved shape of the movable stones for densities a more even knitting is achieved. Factors such as knitting speed, machine temperature, significantly reduce their weight due to the constant trajectory of the needles. The knitting is of better quality and with better shaped ends, which are not "stretched" and no loose stitches are obtained during knitting.

Explanation of the attached figures

This utility model is illustrated in the figures, where:

Figure 1 is a schematic diagram of a linear knitting machine;

Figure 2.1 - image of the location of the stones on the knitting sledge; and Figure 2.2 is an illustration of the trajectory of the thread in the needle channels.

Examples of implementation of the utility model

The created linear knitting machine shown in figure 1 includes a control unit 1, bidirectionally connected to the knitting sledge 3 and unidirectionally connected to a first motor 2 for driving the knitting sledge 3, a second motor 5 for driving a rear needle bed 9 and a third motor 6 for driving a traction shaft 7. The machine also has a rail 11 for counting positions in the movement of the sled 3. The control unit 1 includes a memory for storing control software, control processor and command ports, converting commands for the respective devices of the machine.

The knitting sledge 3 performs the essential work of the knitting machine, which it performs by appropriate selection of needles. The knitting sledge 3 is provided with a thread guide selection device 4 and a thread guide 14. The knitting sledge 3 also includes devices for selecting a knitting or fanging needle by means of sector plates. Also devices for raising or holding the needles to the transfer or receiving position, a device for switching on the thread guide. In addition to the devices for selecting a knitting or fanging needle, the knitting sledge 3 is also equipped with static stones 15, movable stones for densities 16, transfer stone 17 and receiving stone 18, shown in Figure 2.1. To improve the knitting process, the movable density stones 16 are made with a new shape of an irregular hexagon, on which two of the pairs of opposite sides are parallel. Figure 2.1 shows points A, B and C, point A being the beginning of folding the thread from the needle inwards into the needle channel; point B is the first end point of the needle thread fold, and point C is the last end point of the fold, after which the needle is released from the mandatory trajectory. The horizontal distances between the described points, namely between A and B, and B and C are denoted M and N, respectively, as M <N. The changed shape of the movable stones for densities 16 allows the needle to be kept on the trajectory between the points B and With a sufficiently long time for the next adjacent needle to form a loop, pulling the thread only in the direction of the thread guide 14 (Figure 2.2).

As standard, the knitting machine has eight thread guides, the thread guide selection device 4 selecting a thread guide 14 by means of electromagnets that lower or retract pulleys, entraining or leaving the thread guide 14 when moving the sledge 3. The thread guide 14 is attached to a rail parallel to the needles. 8 and 9, and feeds the needle thread when braiding the loop.

The second motor 5 is a stepper motor for driving the rear needle bed 9 and controls the positions of the needle beds 8 and 9 relative to each other.

The third motor 6 has a variable torque and determines the pulling force of the knitting pressed against the pulling shaft 7.

The rail is provided with a sensor 10 for the starting position of the carriage 3, the device 4 for selecting a thread guide and the sensor 10 for the initial position of the carriage 3 are connected in one direction to the control unit 1.

The knitting machine also includes a brake 12, functionally connected to a side compensator 13, which in turn is connected to the thread guide 14. The brake 12 is composed of metal plates supported by a spring, which presses the thread passing between them for its even stretching. . The side compensator 13 pulls the thread through a wire arm stretched with a spring, picking up the excess thread when the thread guide comes out of the knitting.

2918 Descriptions to certificates for registration of utility models № 10.1 / 15.10.2019

Claims (2)

Claims A linear knitting machine, characterized in that it comprises a control unit (1), a knitting sledge (3) is connected in two directions and a first motor (2) for driving the knitting sledge (3) is connected in one direction, is a second motor (5). ) for driving a rear needle bed (9) and is a third motor (6) for driving a pull shaft (7), wherein the knitting sledge (3) is provided with a device (4) for selecting a thread guide and is a thread guide (14) , as the device (4) is unidirectionally connected is the control unit (1), in which the machine is equipped with a rail (11) for counting positions in the movement of the sled, which rail (11) is equipped with a sensor (10) for initial position of the carriage, the sensor (10) for the initial position of the carriage is unidirectionally connected to the control unit (1), the machine also includes a fixed front needle bed (8) and a brake (12), functionally connected to a side compensator (13), which in turn, the thread guide is connected (14). Linear knitting machine according to claim 1, characterized in that the knitting sledge (3) is equipped with static stones (15), movable stones for densities (16), including or excluding a transfer stone (17) and a receiving stone. (18), the movable density stones (16) being made in the shape of an irregular hexagon on which two of the pairs of opposite sides are parallel.