CN200940191Y

CN200940191Y - Presser device of computerized flat-bed weaving machine

Info

Publication number: CN200940191Y
Application number: CN 200620106071
Authority: CN
Inventors: 黄渭南
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-07-27
Filing date: 2006-07-27
Publication date: 2007-08-29
Anticipated expiration: 2016-07-27

Abstract

The utility model belongs to the technology field of textile machinery manufacturing, in particular to a pressure feet device of a computer flat weaving machine, which comprises pressure feet and a needle plate. The pressure feet is positioned inthe middle of the front and post needle plates, the intersecting surface of the pressure feet pressure mast is presented in 5 to 8 edge shape. The utility model applied to the computer flat weaving machine has the advantages of high weaving efficiency, high rate of finished products and low cost of maintenance.

Description

A kind of foot device of computer flat knitting machine

Technical field

The utility model belongs to textile machine manufacturing technology field, particularly a kind of foot device of computer flat knitting machine.

Background technology

When the knitting needle of computer flat knitting machine moved back circle in rising, though the traction force of fabric is arranged, old coil also can rise with knitting needle, thereby influences weave effect.Push down old coil so presser feet is set, presser feet is installed on the head of straight-bar machines, and presser feet is in the centre below of straight-bar machines both sides needle plate.Under the pressure effect of presser feet line ball bar, old coil can not rise with knitting needle, thereby reaches preferable weave effect.

At present, there are circle and rectangle in the cross section of presser feet line ball bar.The presser feet of circular line ball bar is used for the tractive reversible cloth more, and the presser feet of rectangle line ball bar is used for tractive single face fabric more.

But respectively there is shortcoming in above-mentioned two kinds of presser feets.As shown in Figure 1, 2, the cornerite of the presser feet of 5 pairs of circular line ball bars of old coil is big, adds the gravity traction action of fabric 3, and cornerite can be bigger.Like this, old coil 5 is big with the contact-making surface of line ball bar 6.Because of the yarn that weaves on the straight-bar machines mostly is the suede class, the yarn dirt of yarn absorption itself is more, again because the contact-making surface of old coil and line ball bar is big, so line ball bar absorption yarn dirt is many, thereby influences weave effect.So often need dismounting presser feet and cleaning, increased labor workload and maintenance cost, reduced the operating efficiency of straight-bar machines.

As shown in Figure 3, though rectangle line ball bar 6 has reduced the contact area with old coil 5, the contact point of itself and old coil 5 has only two, and big to the shearing force of old coil 5, yarn ruptures easily, in the braiding process, has increased defect rate, wastes raw material.So, be necessary the shape of above-mentioned two kinds of presser feets is improved, to overcome the shortcoming that exists at present.

Summary of the invention

The purpose of this utility model is to provide a kind of foot device of computer flat knitting machine, and this foot device is applied to computer flat knitting machine, makes straight-bar machines have braid efficiency height, yield rate height and the low advantage of maintenance cost.

The technical solution of the utility model is as follows: a kind of foot device of computer flat knitting machine, comprise presser feet, needle plate, knitting needle, and needle plate central authorities before and after presser feet is positioned at, presser feet line ball bar cross section is five to octagon.

The foot device of described computer flat knitting machine, presser feet line ball bar cross section is hexagon.

The line ball bar of the utility model presser feet adopts greater than tetragonal polygonal cross-section, the erose cross section that many angles are perhaps arranged, compare with existing circular line ball bar, reduced contact-making surface with old coil, thereby be difficult for absorption yarn dirt, reduce the number of times of artificial cleaning presser feet, reduced maintenance cost, improved the braid efficiency of straight-bar machines; Because the contact area of line ball bar and old coil has more than 4 or 4, the shearing force of the old coil of line ball pole pair is little again, and old coil is easy fracture not, improves the yield rate of braided fabric.

Description of drawings

Fig. 1 is the foot device schematic diagram of existing computer flat knitting machine.

Fig. 2 is the A portion enlarged drawing of Fig. 1.

Fig. 3 is the another kind of foot device schematic diagram of existing computer flat knitting machine.

Fig. 4 is the structural representation of the utility model embodiment one.

Fig. 5 is the D-D cutaway view of Fig. 4.

Fig. 6 is the user mode figure of this enforcement one.

Fig. 7 is the B portion enlarged drawing of Fig. 6.

Fig. 8 is the C portion enlarged drawing of Fig. 7.

Fig. 9 is the utility model embodiment two structural representations.

Figure 10 is the utility model embodiment three structural representations.

In the diagram, 1-knitting needle, 2-presser feet, 3-fabric, 4-needle plate, the old coil of 5-, 6-line ball bar.

The specific embodiment

Below in conjunction with accompanying drawing the utility model embodiment is elaborated.

Embodiment one: shown in Fig. 4,5,6, presser feet 2 is installed on the head of computer flat knitting machine, and line ball bar 6 is in the centre below of the both sides needle plate 4 of straight-bar machines, and pushes down old coil 5.The cross section of presser feet line ball bar 6 is hexagon.

Shown in Fig. 7,8, presser feet line ball bar 6 is A, B, C, D 4 points in the diagram with the contact point of old coil 5, respectively there are a fixed gap in AB, BC, the CD line segment of the AB of old coil 5, BC, CD arc section and line ball bar 6, both contact-making surfaces have been reduced, make yarn dirt be difficult for being adsorbed onto line ball bar 6, thereby reduced the number of times that cleans presser feet, reduced the hand labor amount, improved the operating efficiency of computer flat knitting machine again.Because of A, B, 4 contacts of C, D are arranged, the shearing force of 6 pairs of old coils 5 of line ball bar reduces again, and old coil 5 is easy fracture not, has improved the yield rate of assembling-disassembling.

Embodiment two: as shown in Figure 9, the cross section of line ball bar 6 is a heptagon, has 5 with the contact point of old coil 5, i.e. A, B, C, D, E point.

Embodiment three: as shown in figure 10, line ball bar 6 has A, B, four contact points of C, D with old coil 5, and its upper surface is curved.The technique effect of present embodiment is identical with embodiment one.

Table 1 is the efficiency index deck watch of the utility model embodiment and prior art.

Table 1

The cross section of line ball bar	Absorption yarn dirt Capability index	The broken yarn probability index	The Comprehensive Assessment grade
The cross section of line ball bar	Absorption yarn dirt Capability index	The broken yarn probability index	The Comprehensive Assessment grade	Circular	0.80	0.40	In
Rectangle	0.40	0.80	In	Circular	0.80	0.40	In
Rectangle	0.40	0.80	In	Hexagon	0.50	0.46	Excellent
Heptagon	0.60	0.42	Very	Hexagon	0.50	0.46	Excellent

As shown in Table 1, the utility model had both overcome the many shortcomings of circular line ball bar absorption yarn dirt, had overcome easily the continue shortcoming of yarn of rectangle line ball bar again, had reached preferable weave effect.

Embodiment of the present utility model is many in addition; as pentagon, octagon even more polygon or other erose line ball bar cross sections; as long as the contact point of presser feet line ball bar and old coil is greater than 2 points; and non-infinite many contact points during as circular cross-section, all fall into protection domain of the present utility model.

Claims

1, a kind of foot device of computer flat knitting machine comprises presser feet, needle plate, knitting needle, it is characterized in that: needle plate central authorities before and after presser feet is positioned at, presser feet line ball bar cross section is five to octagon.

2, the foot device of computer flat knitting machine according to claim 1 is characterized in that: described presser feet line ball bar cross section is hexagon.