CN111962201A - Computerized flat knitting coil pressing device using electromagnetic needle selection and its working method - Google Patents

Abstract

The invention relates to a computerized flat knitting machine coil pressing device adopting electromagnetic needle selection and a working method thereof, wherein the coil pressing device comprises a pressing needle, an auxiliary needle plate and a pressing needle cam; the auxiliary needle plate is arranged above a front needle bed or a rear needle bed of the computerized flat knitting machine, a row of needle grooves with uniform intervals are arranged on the auxiliary needle plate along the length direction of the auxiliary needle plate, the pressing needles are arranged in the needle grooves, the pressing needle rods are abutted against the bottoms of the needle grooves, and the elastic force of the pressing needle rods is utilized to enable the front needle butts and the rear needle butts to be exposed out of the needle grooves and then to be pushed by the needle cam plate; the needle pressing mountain plate is arranged above the auxiliary needle plate and moves synchronously with the flat knitting machine head; the needle pressing cam plate is provided with at least one needle pressing unit, each needle pressing unit is provided with a pushing and abutting triangle for pushing and abutting a front needle butt and a rear needle butt of the needle pressing, and a left needle selector and a right needle selector for selecting the needle by the needle pressing. The coil pressing device is only arranged on one side of a needle bed of a computerized flat knitting machine, so that the yarn pressing requirement during knitting can be met, and the defect that a cross sinker is easy to damage is overcome.

Description

Computerized flat knitting coil pressing device using electromagnetic needle selection and its working method

technical field

The invention relates to the field of computerized flat knitting machines, in particular to a coil pressing device of a computerized flat knitting machine using electromagnetic needle selection and a working method thereof.

Background technique

A large amount of yarn needs to be filled in the knitting process of the computerized flat knitting machine. In order to prevent floating yarn, a loop pressing device is usually installed on the front and rear needle beds to press the yarn so that it does not float. The existing loop pressing device usually adopts a cross sinker For example, the patent application with the application number of 2019114156111: a sinker mechanism and a computerized flat knitting machine. , make the sinker rotate back and forth with the positioning steel wire as the rotation axis to realize the down-pressing or release of the down-pressing yarn. This kind of sinker-type coil pressing device cannot press down the yarn floating in the hole, so it is impossible to press the yarn down. The yarn floating in the hole is pressed below the intersection point of the sinker, and the floating thread problem occurs, which affects the quality of the knitted product. In addition, when the Xinke guide block is running at random, the sinker within its travel range needs to be pressed down or not. The yarn will be pressed down, and it is impossible to select a single sinker to work. Therefore, it is necessary to improve and optimize the existing computerized flat knitting machine coil pressing device.

SUMMARY OF THE INVENTION

The purpose of the present invention is to overcome the above-mentioned deficiencies in the prior art, and to provide a computerized flat knitting machine coil pressing device with a reasonable structure design and good yarn pressing effect using electromagnetic needle selection, and a working method thereof.

The technical scheme adopted by the present invention to solve the above problems is: a coil pressing device of a computerized flat knitting machine using electromagnetic needle selection, which is arranged above at least one needle bed of the front and rear needle beds of the computerized flat knitting machine, and two needle beds of the front and rear needle beds. A tooth gap is formed at the front end of the coil, and it is characterized in that: the coil pressing device includes a pressing needle, an auxiliary needle plate for installing the pressing needle, and an auxiliary needle plate for acting on the pressing needle to make the pressing needle relative to the tooth gap. A needle pressing mountain board for advancing and retreating; the pressing needle includes a needle bar in the shape of a sheet, the front part of the needle bar is extended with a yarn pressing part for pressing down the yarn, and the tail part of the needle bar is extended with a needle selection part , the top of the needle bar is provided with a front needle butt and a rear needle butt, and the bottom of the needle bar is connected with a needle press bar that has elastic deformation and can provide a certain elastic force; the auxiliary needle plate is installed on the front needle bed of the computerized flat knitting machine or Above the rear needle bed, a row of evenly spaced needle grooves is arranged on the auxiliary needle plate along its length direction. The elastic force of the needle bar makes the front needle butt and the rear needle butt exposed from the needle groove and then pushed by the needle-pressing mountain plate; the needle-pressing mountain plate is arranged above the auxiliary needle plate and moves synchronously with the head of the flat knitting machine; At least one needle pressing unit is arranged on the needle mount plate, and each pressing needle unit is equipped with a pushing cam for pushing the front butt and rear butt of the pressing needle, and a left pressing unit for selecting the pressing needle. Needle selector and right needle selector; when selecting needles, the left needle selector or the right needle selector acts on the needle selection part of the pressing needle.

Preferably, the needle bar, the yarn pressing part, the needle selection part, the front butt, the rear butt and the needle pressing bar are integrally formed into a pressing needle.

Preferably, the included angle between the auxiliary needle plate and the front needle bed or the rear needle bed ranges from 58° to 60°.

Preferably, the bottom surface of the needle selection part is flat, and electromagnetic needle selectors are used for the left needle selector and the right needle selector; when the needle is selected, the left needle selector or the right needle selector is sucked and engaged with the bottom surface of the needle selection part, thereby Pull down the pressing needle so that the front butt and the rear needle butt sink into the needle groove without being pushed by the pushing triangle.

Preferably, the bottom surface of the yarn pressing portion is a concave curved surface.

The invention also provides the working method of the coil pressing device of the computerized flat knitting machine using electromagnetic needle selection: in the initial state, the needle pressing rod provides upward elastic force to the pressing needle, so that the front butt and the rear needle butt of the pressing needle are removed from the needle groove. exposed in the middle; the needle-pressing mountain plate moves synchronously with the flat knitting machine head, and when the needle-pressing mountain plate moves to the top of the pressing needle, the front butt and the rear needle butt of the pressing needle that need to participate in the yarn pressing are pushed by the pushing triangle. The pressing needle moves forward and then moves backward to release the pressing action towards the tooth gap; the pressing needle that does not need to be pressed is selected by the left needle selector or the right needle selector, and the left needle selector or the right needle selector The lower surface of the needle selection part sucks and engages with the device to pull down the pressing needle, so that the front needle butt and the rear needle butt sink into the needle groove and are not pushed by the pushing triangle, so they do not participate in the yarn pressing work.

Compared with the prior art, the present invention has the following advantages and effects: the loop pressing device is only arranged on one side of the needle bed of the computerized flat knitting machine to meet the yarn pressing requirements during knitting, and overcomes the fact that the cross sinkers are easily damaged. In this coil pressing device, the forward and backward movement of the pressing needle depends on the push of the push-up triangle, and the push-up triangle is installed on the needle-pressing mountain plate, and the needle-pressing mountain plate moves together with the head of the computerized flat knitting machine, and presses the needle. The number of needle pressing units set on the needle mountain board corresponds to the number of systems used by the flat knitting triangle base plate. Since each needle pressing unit is equipped with a needle selector, a single pressing needle can be selected to perform a single system of yarn pressing, with good yarn pressing effect, strong reliability and guaranteed fabric quality.

Description of drawings

In order to more clearly illustrate the specific embodiments of the present invention or the solutions in the prior art, the following will briefly introduce the accompanying drawings used in the description of the specific embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the present invention, and for those skilled in the art, other drawings can also be obtained from these drawings without any creative effort.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention (the pressing needle does not extend out of the needle groove to press the yarn).

Fig. 2 is a schematic structural diagram of an embodiment of the present invention (the pressing needle extends out of the needle groove to press the yarn).

FIG. 3 is a schematic diagram of the structure of the pressing needle in the embodiment of the present invention.

FIG. 4 is a schematic structural diagram of a needle-pressing mountain board in an embodiment of the present invention.

Figures 5 to 7 illustrate the needle moving trajectories of the pressing needle on the needle pressing mountain plate when the left, middle and right single systems need to be pressed.

Fig. 8 shows the needle movement track of the pressing needle when the pressing needle does not need to be out of the needle and pressing the yarn.

Description of reference numerals: press needle 1, auxiliary needle plate 2, needle press mountain plate 3, needle bar 11, yarn press part 12, needle selection part 13, front butt 111, rear butt 112, needle press bar 14, pusher Abutting triangle 31, left needle selector 32, right needle selector 33.

Detailed ways

The present invention will be further described in detail below with reference to the accompanying drawings and through the examples. The following examples are to explain the present invention and the present invention is not limited to the following examples.

Example.

See Figures 1 through 8.

This embodiment discloses a coil pressing device for a computerized flat knitting machine using electromagnetic needle selection. The coil pressing device is arranged above at least one needle bed of the front and rear needle beds of the computerized flat knitting machine, and both the front and rear needle beds are arranged above at least one needle bed. The front end forms the tooth gap. The coil pressing device includes a pressing needle 1, an auxiliary needle plate 2 for installing the pressing needle 1, and a pressing needle mountain for acting on the pressing needle 1 to make the pressing needle 1 move forward and backward relative to the tooth gap. plate 3.

In this embodiment, specifically, the pressing needle 1 includes a needle bar 11 in the shape of a sheet. The front part of the needle bar 11 extends a yarn pressing part 12 for pressing down the yarn, and the bottom surface of the yarn pressing part 12 is the inner part. Concave curved surface, easy to hold down the yarn. A needle selection part 13 extends from the tail of the needle bar 11, and the bottom surface of the needle selection part 13 is flat, so that the needle selector can be better adsorbed. The top of the needle bar 11 is provided with a front butt 111 and a rear butt 112, and a needle press bar 14 with elastic deformation and a certain elastic force is connected to the bottom of the needle bar 11. The elastic force provided by the needle press bar 14 can make the The needle has maintained a tendency to arch upwards. The needle bar 11 , the yarn pressing part 12 , the needle selection part 13 , the front butt 111 , the rear butt 112 and the needle pressing bar 14 are integrally formed to form the pressing needle 1 .

In this embodiment, the auxiliary needle plate 2 is fixedly installed above the front needle bed or the rear needle bed of the computerized flat knitting machine in a posture of maintaining an angle of 59° with the front needle bed or the rear needle bed. A row of evenly spaced needle grooves is arranged in the direction, the press needle 1 is installed in the needle groove, and the needle press rod 14 is pressed against the groove bottom of the needle groove, and the front needle butt 111 and the rear needle butt are made by the elastic force of the needle press rod 14. After the 112 is exposed from the needle groove, it is pushed by the pressing needle mountain plate 3 .

In this embodiment, the needle press mount plate 3 is arranged above the auxiliary needle plate 2 and moves synchronously with the flat knitting machine head; at least one needle press unit is set on the needle press mount plate 3, and each needle press unit is configured with a The front butt 111 and the rear butt 112 of 1 are used to push the push cam 31, and the left needle selector 32 and the right needle selector 33 are used to select the needle of the pressing needle 1; The needle device 32 or the right needle selector 33 acts on the needle selection part 13 of the needle press 1, and is sucked into the bottom surface of the needle selection part 13 to pull down the press needle 1, so that the front butt 111 and the rear needle butt 112 sink into the needle groove , Not subject to the pushing action of the pushing triangle 31.

The number of needle pressing units set on the needle pressing mountain plate 3 corresponds to the number of systems used by the matching flat knitting triangle bottom plate. For example, the flat knitting triangle bottom plate is a three-system bottom plate, and three needle pressing units ( Referring to Figure 4), every two adjacent needle pressing units share a needle selector.

The working method of the coil pressing device of the computerized flat knitting machine using electromagnetic needle selection: in the initial state, the needle pressing rod 14 provides upward elastic force to the pressing needle 1, so that the front butt 111 and the rear needle butt 112 of the pressing needle 1 are removed from the needle groove. exposed in the middle; the needle indenter plate 3 moves synchronously with the flat knitting machine head, and when the needle indenter plate 3 moves above the needle indenter 1, the front butt 111 and the rear needle butt 112 of the indenter 1 that needs to participate in the yarn pressing are pushed against Due to the pushing action of the triangle 31, the pressing needle 1 first performs the forward thread pressing action towards the tooth gap, and then performs the backward pressing action to release the yarn pressing action; For needle selection, the left needle selector 32 or the right needle selector 33 is sucked and engaged with the bottom surface of the needle selection part 13, thereby pulling down the pressing needle 1, so that the front needle butt 111 and the rear needle butt 112 sink into the needle groove and are not pushed against the cam 31's pushing action, so it does not participate in the pressing work.

The loop pressing device is only arranged on one side of the needle bed of the computerized flat knitting machine to meet the yarn pressing requirements during knitting, and overcomes the defect that the cross sinker is easily broken.

In this coil pressing device, the forward and backward movement of the pressing needle depends on the pushing of the pushing triangle, and the pushing triangle is installed on the pressing needle mountain plate. The number of needle press units set on the upper corresponds to the number of systems used by the flat knitting triangle bottom plate. Since each needle press unit is equipped with a needle selector, a single press needle can be selected to perform a single system of yarn pressing, such as Figure 5 shows the needle movement trajectory of the pressing needle when the single system on the left needs to press yarn, Figure 6 shows the needle movement trajectory of the pressing needle when the single system in the middle needs yarn pressing, and Figure 7 shows the needle movement trajectory of the right single system When the system needs to press the yarn, the needle moving trajectory diagram of the pressing needle.

In addition, it should be noted that the specific embodiments described in this specification may have different shapes and names of parts and components, and the above content described in this specification is only an illustration of the structure of the present invention. All equivalent changes or simple changes made according to the structure, features and principles of the patented concept of the present invention are included in the protection scope of the patent of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or substitute in similar manners, as long as they do not deviate from the structure of the present invention or go beyond the scope defined by the claims, All should belong to the protection scope of the present invention.

Claims (6)

1. a computerized flat knitting machine coil pressing device that adopts electromagnetic needle selection, is arranged on the top of at least one needle bed of the front and rear needle beds of the computerized flat knitting machine, and the front ends of both front and rear needle beds form a tooth gap, and it is characterized in that: In that: the coil pressing device comprises a pressing needle (1), an auxiliary needle plate (2) for installing the pressing needle (1), and an auxiliary needle plate (2) for acting on the pressing needle (1) to make the pressing needle (1) The needle pressing plate (3) that moves forward and backward relative to the tooth gap; The pressing needle (1) includes a needle bar (11) in the shape of a sheet, and a yarn pressing portion (12) for pressing down the yarn extends from the front of the needle bar (11). A needle selection portion (13) extends from the tail, a front butt (111) and a rear butt (112) are arranged on the upper surface of the needle bar (11), and a needle bar (11) is connected below with an elastically deformable, capable of providing certain Elastic force needle pressing rod (14); The auxiliary needle plate (2) is installed above the front needle bed or the rear needle bed of the computerized flat knitting machine, and a row of needle grooves with uniform intervals are arranged on the auxiliary needle plate (2) along the length direction thereof. ) is installed in the needle groove, and the needle pressing rod (14) is pressed against the groove bottom of the needle groove, and the front needle butt (111) and the rear needle butt (112) are moved from the needle groove by the elastic force of the needle pressing rod (14). After the middle is exposed, it is pushed by the pressing needle mountain plate (3); The needle pressing mountain plate (3) is arranged above the auxiliary needle plate (2) and moves synchronously with the flat knitting machine head; at least one needle pressing unit is arranged on the needle pressing mountain plate (3), and each needle pressing unit is configured with a The push cam (31) for pushing the front butt (111) and the rear butt (112) of the press needle (1), and the left needle selector ( 32) and the right needle selector (33); during needle selection, the left needle selector (32) or the right needle selector (33) act on the needle selector (13) of the pressing needle (1). 2. The computerized flat knitting machine coil pressing device using electromagnetic needle selection according to claim 1, characterized in that: the needle bar (11), the yarn pressing part (12), the needle selection part (13), the front needle The butt (111), the rear needle butt (112) and the needle pressing rod (14) are integrally formed to form the pressing needle (1). 3. The computerized flat knitting machine coil pressing device using electromagnetic needle selection according to claim 1, characterized in that the included angle between the auxiliary needle plate (2) and the front needle bed or the rear needle bed is 58 -60°. 4. The computerized flat knitting machine coil pressing device using electromagnetic needle selection according to claim 1, characterized in that: the bottom surface of the needle selection part (13) is a plane, the left needle selector (32) and the right needle selector ( 33) Select an electromagnetic needle selector; when selecting needles, the left needle selector (32) or the right needle selector (33) is sucked into the bottom surface of the needle selector (13), so that the pressing needle (1) is pulled down and the front The needle butt (111) and the rear needle butt (112) sink into the needle groove and are not subject to the pushing action of the pushing cam (31). 5 . The computerized flat knitting machine coil pressing device using electromagnetic needle selection according to claim 1 , wherein the bottom surface of the yarn pressing portion ( 12 ) is a concave curved surface. 6 . 6. A working method of a computerized flat knitting machine coil pressing device using electromagnetic needle selection according to any one of claims 1-5, characterized in that: in the initial state, the needle pressing rod (14) presses against The needle (1) provides upward elastic force, so that the front butt (111) and the rear butt (112) of the pressing needle (1) are exposed from the needle groove; When the needle pressing mountain plate (3) moves to the top of the pressing needle (1), the front butt (111) and the rear needle butt (112) of the pressing needle (1) that needs to participate in the yarn pressing are pushed by the pressing triangle (31). The pressing needle (1) moves forward and then moves backward to release the yarn pressing action toward the tooth gap; the pressing needle (1) that does not need to be pressed is moved by the left needle selector (32) or the right needle selector. (33) Select the needle. The left needle selector (32) or the right needle selector (33) is sucked and engaged with the bottom surface of the needle selection part (13), so that the pressing needle (1) is pulled down, so that the front butt (111) and the The rear needle butt (112) sinks into the needle groove and is not pushed by the pushing triangle (31), so it does not participate in the yarn pressing work.

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