RU227395U1 - CARRIAGE AND NEEDLE ASSEMBLY OF KNITTING MACHINE - Google Patents

Abstract

The utility model relates to mechanical engineering, namely to the components of knitting machines, and is a knitting unit for a glove knitting machine. The technical result of the useful model is to ensure uniform tension of the thread as it passes along the hook of the needle, as well as to eliminate the likelihood of areas of increased and sparse false twist appearing on the yarn and, as a result, reducing yarn breakage. The knitting unit of a knitting machine includes a needle bar, a carriage mounted on the guide rails of the needle bar and composite needles inserted into the grooves of the needle bar 1 mm wide with equal steps of 2 mm, with each composite needle consisting of two parts: the first part feeding the thread, and the second part , ensuring the movement of the needle in the needle bar, while the first and second parts of the needle are connected by a locking connection, the second part of the needle is installed in the needle bar in grooves corresponding to the thickness of the needle, the part of the needle that ensures the movement of the needle in the needle bar includes the heel of the pusher, as well as the needle lock located at the end of the pusher opposite the pusher heel.

Description

The utility model relates to mechanical engineering, namely to the components of knitting machines, and is a knitting unit for a glove knitting machine.

The following solutions are known from the prior art.

From the RF patent No. 16149, published on December 10, 2000, a composite needle for a knitting machine is known, containing a long and short part, a figured profile, a longitudinal hook and heels, while the needle contains a figured cutout, a figured bevel, a safety hook and elongated hook noses.

The disadvantage of the known solution is the insufficient length of the safety hook (item 7), as well as the insufficient length of the hook itself.

Also known is a composite hook needle for a knitting machine, containing a rod, a head with a hook, a control device, and a lock located in a longitudinal groove of the rod with the ability to slide and lock the hook with the front end. The closure is made of hingedly connected components with the possibility of deflecting upward the front of them, which has a bevel at the front end for interaction with the needle hook and a height not exceeding the height of the needle shaft, while under the needle hook, made springy, there is a bowl, the bottom of which is made in in the form of a profiled groove for sliding and fixing the front part of the lock, which bends when interacting with the hook into the bowl (RF patent No. 2100497 C1, published December 27, 1997).

The closest analogue of the patented solution is the design of a composite needle of a knitting machine, consisting of a needle and a needle bar, which rests with its protrusion against the hook of the needle, and also contains a heel, under which there is an elliptical slit, the lower part of which has an arcuate profile, and the side surface of the needle bar is under the slit made congruent to the lower part of the gap (RF patent No. 96127, published July 20, 2010).

The disadvantage of the known solution is the insufficient reliability of fastening the needle from two components, justified by the design of the lock (position 5 and 4).

The technical problem solved by the claimed device is to increase the service life of the knitting machine needle.

The technical result of the useful model is to ensure uniform tension of the thread as it passes along the hook of the needle, as well as to eliminate the likelihood of areas of increased and sparse false twist appearing on the yarn and, as a result, reducing yarn breakage.

The declared technical result is achieved due to the design of the knitting unit of the knitting machine, including a composite needle consisting of two parts: the first part, feeding the thread, and the second part, ensuring the movement of the needle in the needle bar, while the first and second parts of the needle are connected by a locking connection, the second part The needle is installed in the needle bar in grooves corresponding to the thickness of the needle. The entire structure is protected by the carriage body, which is also the supporting structure.

The part of the needle, which is a pusher, includes a pusher heel, designed to move the needle by elements of the carriage to select needles when forming a pattern, as well as a needle lock located at the end of the pusher opposite the pusher heel.

Due to the reliable fixation of the needle in the groove of the needle bar from above and due to the locking connection of the pusher and the hook part of the needle, uniform tension of the thread is achieved as it passes along the hook of the needle, which also reduces the likelihood of areas of increased and sparse false twist, the needle spacing is 2 mm and fixation in the needle bar with a clamp at the end of the pusher also reduces the likelihood of areas of high and low false twist appearing on the yarn.

The solutions are further explained by reference to the figures, which show the following.

Fig. 1 - part of the needle that feeds the thread.

Fig. 2 - part of the needle that ensures the movement of the needle in the needle bar.

Fig. 3 - needle assembly.

Fig. 4 - view B from figure 3, general view of the lock connecting both parts of the needle.

Fig. 5 - general view of the needle bed.

Fig. 6 is a front view of a needle bar with needles inserted into the grooves.

Fig. 7 - top view of a needle bar with needles inserted into the grooves.

Fig. 8 is a side view of a needle bar with needles inserted into the grooves.

Fig. 9 - bottom view of the carriage.

Fig. 10 - side view of the carriage.

The knitting unit includes a needle bar, a carriage and a composite needle installed in the needle bar.

The needle bar is a comb 7 with grooves 8, the width of which is 1 mm, located at equal intervals of 2 mm from each other along the length of the comb 7. Composite needles are placed in the grooves 8. The carriage includes a body 9 with wedges 10 located in the lower part, a thread trimming module 11, thread guides 12 and a carriage pusher mount 13.

The compound needle consists of two parts: the first part, which feeds the thread 1, and the second part 2, which ensures the movement of the needle in the needle bar, while the first and second parts of the needle are connected by a locking connection through locking elements 3 and 4. Locking element 4 has a rounded protrusion that fits into the rounded groove of the locking element 3 with a latch in the form of a beveled corner of the element 4, abutting against the edge of the groove of the element 3. In turn, the locking element 3 includes a trapezoidal protrusion that fits into the trapezoidal groove of the locking element 4. This design allows for easy replacement of any element, while has the necessary reliability.

The second part of the needle - the pusher, includes protrusions 5 and 6. Moreover, protrusion 5 is intended for fixing the needle in the needle bar on top with a fixing plate, excluding its spontaneous removal from the needle bar at high speeds of the knitting machine carriage, protrusion 6 is the heel of the pusher and protrudes from the groove of the needle bar for engagement with the carriage wedges when selecting and moving needles in the process of knitting rows of fabric.

In fig. 6-8 shows the installation of needles in the needle bar. The needle bar is mounted on a metal frame; blocks and panels are attached to the frame with screws through guide rails. The carriage moves along the guide rails of the needle bar by hand. It is equipped with a mechanism that controls the operation of needles and plates during knitting, and includes wedges. In this unit of the knitting machine, it is proposed to reduce the distance between the grooves for needles by half, which will make the knitting more durable and of higher quality, significantly increasing the knitting class of the machine. At the same time, the size of the carriage in the thread feeding unit with the help of needles is also reduced, which makes it possible to significantly increase the knitting speed. Unlike well-known analogues, this useful model has a number of advantages: compactness, cost-effectiveness, improved knitting quality of gloves up to class 10 by reducing the interval between needles in the needle receiver. Also, by reducing the dimensions of the carriage, the weight of the knitting machine is reduced and the knitting speed increases.

During operation, the carriage moves sequentially from right to left and back, providing a transverse thread, while at the same time the needles in the needle bar continuously move back and forth, providing the required fabric density and knitting class. Thanks to the transverse movements of the carriage and needles in the needle bar, fabric of the required quality is formed.

Claims (1)

A knitting unit of a knitting machine, including a needle bar mounted on the guide rails of the needle bar, a carriage and composite needles, each of which consists of two parts: the first part of the needle is made with the ability to feed the thread through a hook made at one end, and at the other end there is a lock element (3), which is connected to the locking element (4) of the second part of the needle, which is a pusher and is configured to ensure movement of the needle in the needle bar, while the locking element of the second part of the needle has a rounded protrusion that fits into a rounded groove of the locking element of the first part of the needle with a latch in the form of a beveled corner of the locking element of the second part of the needle, which abuts against the edge of the groove of the locking element of the first part of the needle, while the locking element of the first part of the needle includes a trapezoidal protrusion included in the trapezoidal groove of the locking element of the second part of the needle to form a locking connection, and the second part of the needle includes the heel of the pusher, and on its opposite side there is a needle retainer located at the end of the pusher, while the second part of the needle is installed in the groove of the needle bar, which corresponds to the thickness of the needle, and the groove of the needle bar is made 1 mm wide with equal steps of 2 mm.