CN109629108B

CN109629108B - Two-dimensional three-dimensional braiding machine using closed annular core mold

Info

Publication number: CN109629108B
Application number: CN201910022359.1A
Authority: CN
Inventors: 张国利; 王曦; 史晓平; 张策
Original assignee: Tianjin Polytechnic University
Current assignee: Tianjin Polytechnic University
Priority date: 2019-01-10
Filing date: 2019-01-10
Publication date: 2021-05-28
Anticipated expiration: 2039-01-10
Also published as: CN109629108A

Abstract

A two-dimensional three-dimensional knitting machine capable of using a closed annular core mold comprises an annular core mold driving device, an openable double knitting ring device, an openable rail plate device, a notched table, a driving plate and a driving device, a yarn carrier, a yarn bobbin device and the like. The braided fabric is drawn by the core mould driving device to move below the track disc, and the yarn passes through the double braiding rings to enable the braiding area to be on the horizontal line of the center of the track disc of the braiding machine and the center of the annular core mould. When the annular core mold is woven, the track disc opening and closing device enables the fixed disc and the movable disc to be separated, the double weaving rings are opened at the same time, and a finished product is taken out. The invention can be compatible with closed annular core moulds with various section specifications, simultaneously avoids the influence on the yarn space and the weaving angle of the braided fabric caused by eccentricity or non-vertical weaving direction caused by the circular motion of the annular core moulds in the weaving process, has safe and simple operation, saves manpower and material resources, and improves the product quality and the yield.

Description

Two-dimensional three-dimensional braiding machine using closed annular core mold

Technical Field

The invention relates to a two-dimensional knitting machine, in particular to a two-dimensional three-dimensional knitting machine which can use a closed annular core mould to knit closed annular structure fabrics.

Background

Conventionally, industrial knitting machines generally include two types, i.e., vertical knitting machines and horizontal knitting machines, in which a plurality of driving plates drive two sets of yarn carriers with opposite movement directions to reciprocate on an 8-shaped track, the two sets of yarn carriers drive yarns to be interlaced with each other to knit on a core mold, so as to form a knitted fabric, the core mold is usually moved by a traction device along a straight line, and the knitted fabric has a beginning end and a tail end. For weaving the annular fabric, a closed annular core mold is used, and a multi-layer annular fabric such as a rim and other products are continuously woven, so that the common weaving machine cannot weave the annular fabric.

Disclosure of Invention

The invention aims to provide a two-dimensional knitting machine capable of using a closed annular core mould, which solves the problem that the existing knitting machine can only knit products with a starting end and a tail end and cannot continuously knit on the closed annular core mould.

The object of the invention is achieved in that the knitting machine comprises an endless core mould drive device, an openable double knitting ring device, an openable rail disc device and a notched platform, drive plate and drive device, as well as a yarn carrier, a yarn bobbin device and the like (as shown in figure 1). The annular core mold driving device realizes the holding and continuous movement of the closed annular core mold. The double-weaving ring device enables the weaving area of the yarn on the core mould to be not only at the center of the track disc of the weaving machine, but also on the horizontal line of the center of the annular core mould, so that the weaving area is vertical to the track disc, and the influence of eccentricity, non-vertical weaving direction and other factors caused by the circular motion of the annular core mould on the weaving process is avoided. The openable track plate means ensures that the closed loop mandrel can be moved into and out of the knitting area of the knitting machine.

The ring-shaped core mold driving device (as shown in fig. 2) includes a bracket, spokes, a roller, a motor and a motor bracket. The bottom of the bracket is provided with a triangular support to ensure the stability of the bracket, and the bracket is connected with the motor bracket and then placed on the ground to support the annular core mold driving device. The height of the support can be adjusted, and the top end of the support is connected with a shaft perpendicular to the support and used for connecting 3 groups of spokes. The spokes can be adjusted to different positions by taking the shaft of the bracket as a circle center, and the lengths of the spokes can also be adjusted so as to adapt to the annular core moulds with different diameters and be convenient for assembling and disassembling the closed annular core moulds. The other ends of the 3 spokes are respectively sleeved with 3 leather rollers (as shown in figure 4) with grooves through pins, the core die is sleeved in the leather rollers, and the core die is driven to rotate by one of the leather rollers connected with a motor. The 4 th roller is mounted on the rail plate by a fixed bracket, and the core mold is also embedded in the rail plate and drives the rollers to rotate together. 4 leather rollers which are contacted with the core mould and are arranged at different positions can ensure the rotation stability of the core mould.

The double-braided-ring device with the opening and closing function (shown in figure 3) comprises an upper braided ring layer and a lower braided ring layer which are supported by a braided-ring support. The braiding ring support is divided into two parts which can be opened and closed, one part is arranged on a fixed disc of the track disc device, and the other part is arranged on a movable disc of the track disc device and can synchronously move along with the movable disc. When the track disc device is closed, the knitting ring devices are also connected into a whole to form an upper knitting ring and a lower knitting ring. The upper layer of the weaving ring is a large ring, yarns pass through the large ring from bottom to top from the outer side, move downwards after passing through the large ring, and are concentrated towards the lower layer of the weaving ring. The lower layer of the weaving ring is a small ring, and yarns pass through the small ring from top to bottom and are restrained on the surface of the core mould by the small ring for weaving. The small ring and the center of the core die are on the same horizontal line by adjusting the height of the support, so that the weaving area of the yarn on the core die is not only at the center of the track disc of the weaving machine, but also on the horizontal line of the center of the annular core die, and the weaving area is vertical to the track disc, thereby avoiding the eccentricity or the non-vertical weaving direction caused by the circular motion of the annular core die in the weaving process.

The track disc device that can open and shut include notched rack, fixed disk, activity dish, guide rail and dog, fixed disk and activity dish are all installed on the rack, have 8 font tracks on the dish, are complete annular track when fixed disk and activity dish combination are in the same place, have the driver plate on the track and take the yarn ware, there is the notch at track dish center. The rack that has the breach for placing the track dish, including riser, bottom plate, guide rail, work hole and mounting hole, there is the breach in one side on rack upper strata, the mandrel of being convenient for gets into and takes out, the riser is connected perpendicularly on the bottom plate, constitutes perpendicular angle board, has the work hole in the centre of riser, has a plurality of fixed disk mounting holes on the riser, is connected with the guide rail on the riser. The fixed disc and the movable disc both comprise an upper disc and a lower disc, the fixed disc also comprises a main motor, the upper side of the upper disc is provided with a driving disc, the upper disc is provided with an 8-shaped track, and the motor is connected with the driving disc through gear transmission to drive the yarn carrier to reciprocate along the 8-shaped track. The movable disc can move along the guide rail of the rack, and the position of the joint of the movable disc and the fixed disc corresponds to the notch of the rack. When the core mould is put in or taken out, the main motor stops working, the movable disc is pulled outwards along the guide rail to the stop block, and after the core mould is put in or taken out, the movable disc is pushed back to the original position along the guide rail and is connected with the fixed disc.

The axial yarn device comprises an axial yarn rack and an axial yarn channel. The shaft yarn frame is arranged below the rack and used for placing shaft yarns. The axial yarn channel is fixed at the center of each spindle disk, and axial yarns pass through the axial yarn channel at the center of each spindle disk after being unwound from the axial yarn rack to participate in the weaving process.

Has the advantages that: due to the adoption of the scheme, the closed annular core die is held and continuously moves, and meanwhile, the weaving area of yarns on the core die is not only at the center of the track disc of the weaving machine, but also on the horizontal line of the center of the annular core die, so that the weaving area is vertical to the track disc, and the phenomenon that the weaving process is eccentric or the weaving direction is not vertical due to the circular motion of the annular core die is avoided. Before weaving, the closed annular core mould is sleeved on the core mould driving device, the movable disc is pushed outwards along the guide rail to the stop block and is separated from the fixed disc, then the core mould driving device is moved, the core mould is placed in the notch in the center of the track disc of the weaving machine, then the movable disc is pushed back to the original position along the guide rail and is connected with the fixed disc into a whole, and then weaving can be started. The woven fabric is drawn to the lower part of the track disc by the core mould driving device, when the whole annular core mould is woven to be a finished product, the movable disc is separated from the fixed disc by repeating the actions, and the woven annular fabric finished product can be taken out and then put into a new core mould to be woven continuously. By the scheme, the problem that the existing braiding machine can only braid the linear core mould with the starting end and the tail end and can not continuously and circularly braid the closed annular core mould is solved, and the aim of the invention is achieved.

The advantages are that: the invention can be compatible with closed annular core moulds with various section specifications, simultaneously avoids the influence on the yarn space and the weaving angle of the braided fabric caused by eccentricity or non-vertical weaving direction caused by the circular motion of the annular core moulds in the weaving process, has safe and simple operation, saves manpower and material resources, and improves the product quality and the yield.

Drawings

Fig. 1 is a schematic view of a two-dimensional three-way braiding machine using a closed loop mandrel.

Fig. 2 is a ring-shaped core mold driving device.

Figure 3 is a double braided ring device that can be opened and closed.

Figure 4 is a grooved belt roll.

Detailed Description

Example 1: firstly, a core mould with a circular section is sleeved on a core mould driving device, then a track disc opening and closing device is started, a movable disc is pushed outwards along a guide rail to a stop block, the movable disc is separated from a fixed disc, a double weaving ring is opened simultaneously, then the core mould driving device is moved, the core mould is pushed into a to-be-woven area at a central gap of a track disc of a weaving machine, then the movable disc is pushed back to the original position along the guide rail, the fixed disc and the movable disc are connected into a whole, and the double weaving ring is closed simultaneously. The yarn is led out from the yarn carrier, passes through the upper layer weaving ring from the outside from bottom to top, moves downwards and is concentrated in the direction of the lower layer weaving ring, passes through the lower layer weaving ring from top to bottom and is restrained by the lower layer weaving ring on the surface of the core mould to start weaving, and the woven fabric is drawn by the core mould driving device to move below the track disc. After four loops of yarns are continuously woven, the weaving is stopped, the separation action of the fixed disc and the movable disc is repeated, the double weaving rings are opened simultaneously, and the core mould is taken down from the core mould driving device, so that the four-layer closed annular two-dimensional woven fabric with the circular section is obtained.

Example 2: firstly, a core mould with a trapezoidal section is sleeved on a core mould driving device, then a track disc opening and closing device is started, a movable disc is pushed outwards along a guide rail to a stop block, the movable disc is separated from a fixed disc, a double weaving ring is opened simultaneously, then the core mould driving device is moved, the core mould is pushed into a to-be-woven area at a central gap of a track disc of a weaving machine, then the movable disc is pushed back to the original position along the guide rail, the fixed disc and the movable disc are connected into a whole, and the double weaving ring is closed simultaneously. The yarn is led out from the yarn carrier, the axial yarn is led out from the axial yarn rack to participate in weaving, the yarn passes through the upper weaving ring from bottom to top from the outer side, then moves downwards, is concentrated in the direction of the lower weaving ring, passes through the lower weaving ring from top to bottom, is restrained by the lower weaving ring on the surface of the core mold to start weaving, and the woven fabric is pulled by the core mold driving device to move below the track disc. After six loops of yarns are continuously woven, the weaving is stopped, the separation action of the fixed disc and the movable disc is repeated, the double weaving rings are opened simultaneously, and the core mould is taken down from the core mould driving device, so that the six-layer closed annular two-dimensional three-dimensional braided fabric with the trapezoidal section of the axial yarns is obtained.

Claims

1. A two-dimensional three-way braiding machine using a closed annular core mould is characterized by comprising an annular core mould driving device, an openable double braiding ring device, an openable track disc device, a notched rack, a catch plate, a driving device, a yarn carrier and a yarn axis device;

the annular core mold driving device comprises a support, spokes, a leather roller, a motor and a motor support, wherein the bottom of the support is supported by a triangle and is connected with the motor support and then arranged on the ground, the height of the support can be adjusted, the top end of the support is connected with a shaft vertical to the support, 3 groups of spokes are connected, the spokes can be adjusted to different positions by taking the shaft of the support as a circle center, the lengths of the spokes can also be adjusted, the other ends of the 3 spokes are respectively sleeved with 3 leather rollers with grooves through pins, the core mold is sleeved in the leather roller, one of the leather rollers connected with the motor drives the core mold to rotate, the 4 th leather roller is arranged on a track disc through a fixed support, and the core mold is also embedded into the core mold and drives the leather rollers to rotate.

2. The two-dimensional three-dimensional knitting machine using the closed loop core mold as claimed in claim 1, wherein the openable double loop knitting device includes upper and lower two layers of knitting loops supported by a knitting loop support divided into two parts which can be opened and closed, one part of the knitting loop support being mounted on a fixed disk of the rail disk device and the other part of the knitting loop support being mounted on a movable disk of the rail disk device and being moved synchronously with the movable disk, the knitting loop devices being connected simultaneously as a whole when the rail disk device is closed to constitute upper knitting loops and lower knitting loops, the upper knitting loop being a large loop, the yarn passing through the large loop from the outside from the bottom to the top, the yarn moving downward after passing through the large loop and being concentrated in the direction of the lower knitting loop, the lower knitting loop being a small loop, the yarn passing through the small loop from the top to the bottom and being restrained by the small loop on the core mold surface to be knitted, the small loop and the core mold being, thus, the yarn is woven on the core mold in a region perpendicular to the track disk, both in the center of the track disk of the weaving machine and on a horizontal line in the center of the annular core mold.

3. The two-dimensional three-way knitting machine using the closed annular mandrel as claimed in claim 1, wherein the rail disc device that can be opened and closed includes a notched platform, a fixed disc, a movable disc, a guide rail, and a stopper, the fixed disc and the movable disc are both installed on the platform, when the fixed disc and the movable disc are combined together, a complete annular rail is formed, a dial and a yarn carrier are installed on the rail, a notch is formed in the center of the rail disc, the notched platform is a shelf for placing the rail disc, one side of the upper layer of the platform is notched, the fixed disc and the movable disc both include an upper disc and a lower disc, the fixed disc further includes a main motor, the dial is installed on the upper side of the upper disc, an 8-shaped rail is installed on the upper disc, the motor is connected with the dial through gear transmission to drive the yarn carrier to reciprocate along the 8-shaped rail, the movable disc can move along the guide rail of the platform, and the position of the, when the core mould is put in or taken out, the main motor stops working, the movable disc is pulled outwards along the guide rail to the stop block, and after the core mould is put in or taken out, the movable disc is pushed back to the original position along the guide rail and is connected with the fixed disc.

4. The two-dimensional three-dimensional knitting machine using the closed loop core mold as claimed in claim 1, wherein the axial yarn device includes an axial yarn holder and an axial yarn passage, the axial yarn holder is disposed under the stand for holding the axial yarn, the axial yarn passage is fixed to the center of each spindle disk, and the axial yarn is unwound from the axial yarn holder and then passes through the axial yarn passage at the center of the spindle disk to participate in the knitting process.