Pattern bar yarn guide of warp knitting machine
Technical field
The present invention relates to a kind of warp knitting machine, particularly relate to a kind of flower comb thread-carrier that is used on the warp knitting machine.
Background technology
The existing flower comb thread-carrier that is used on the warp knitting machine mainly contains two kinds, a kind of needle stand of thread-carrier of form and shank are a single piece, shank and syringe needle are splits, be plugged in the endoporus of shank end with respect to an end that is provided with thread guide eyelet on the syringe needle, both be fixed together at the splicing position applying adhesive of syringe needle and shank; The thread-carrier of this structure, on the one hand, because when weaving, the yarn that passes the syringe needle thread guide eyelet applies downward pulling force to syringe needle, thereby under situations such as binder polymer takes place to wear out, the phenomenon that syringe needle comes off from shank often takes place, and this come off before start or in weaving all difficulty be found, thereby often cause fabric inferior, the economic interests of enterprise have been damaged, on the other hand, because the needle stand and the shank of this thread-carrier are a single piece, and both relative positional accuracies require also higher, thereby make difficult, when one of shank or needle stand because when off quality in process of production, both need are together discarded, increased production cost.The shank and the syringe needle of the thread-carrier of another kind of form are made into integration, though the phenomenon that syringe needle comes off from shank can not take place in the thread-carrier of this structure, but because the relative positional accuracy of shank and syringe needle is had relatively high expectations, thereby being difficult for processing, percent defective is higher, has increased production cost, in addition, when damaging appearred in weaving process in one of syringe needle or shank, both must together scrap, and have more increased the production cost of enterprise.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of not only syringe needle and is difficult for coming off from shank, and under the situation that syringe needle, shank or needle stand damage, only needs to replace one of them, and is easily manufactured, the pattern bar yarn guide of warp knitting machine that production cost is low.
For solving the problems of the technologies described above, a kind of pattern bar yarn guide of warp knitting machine of the present invention, constitute by shank, syringe needle and needle stand, one end of described syringe needle is provided with thread guide eyelet, the other end is plugged in the endoporus of described shank end, described shank and needle stand are splits, and shank is fixedlyed connected with needle stand; Splicing position at described syringe needle and shank is provided with the punching press fitting portion that at least one is fixed together both.
Described needle stand is convex shape, and offers groove at its top; Described shank both sides offer positioning recess, and described shank can be inlaid in tightly in the groove of needle stand by the narrow portion of the shank between positioning recess and fixedly connected with needle stand.
Described needle stand is convex shape, and is provided with at least one needle stand hole, location at its top; Described shank is provided with size, position and corresponding location, needle stand hole, described location needle bar hole, and described shank can be fixedlyed connected with needle stand by pack the close-fitting bearing pin in location needle bar hole and needle stand hole, location.
Described punching press fitting portion can be made of first projection of the inside hole circle side face protrusion of shank lateral surface and the pit tabling on the syringe needle periphery.
Described punching press fitting portion also can be made of the inside hole circle side face of shank lateral surface second projection of protruding and the recess tabling that circumferentially extends along the syringe needle periphery.
As a kind of improvement of the present invention, the described punching press fitting portion that is made of first projection and pit has two, and is arranged on the same side of shank.Adopt such structure, can make syringe needle more firm, and processing is also more convenient with being connected of shank.
As another kind of improvement the of the present invention, described circumferentially the recess of extension can be along the whole circumferential extension of syringe needle along the syringe needle periphery.Adopt such structure, can make punch process become more easy, all can carry out punch process in optional position along the recess of whole circumferential arrangement.
After adopting such structure, because the splicing position of syringe needle and shank is provided with the punching press fitting portion that at least one is fixed together both, by this connected mode syringe needle and shank are linked together reliably, thereby make that syringe needle is difficult for coming off from shank in weaving process, and it is simple in structure, process easy, with low cost; Because syringe needle and shank for dividing body structure, under the situation of syringe needle or shank damage, only need to replace one of them and get final product, greatly reduce production cost again; Because described shank and needle stand are splits, be inlaid in the groove of needle stand tightly by the narrow portion of shank or by the close-fitting bearing pin of in location needle bar hole and needle stand hole, location, packing into, make both fixedly connected, this structure not only makes shank and needle stand to process respectively, and accurately assembling then is convenient to make, and in weaving process when damaging appears in arbitrary parts, also can both be separated, change, thereby greatly reduce production cost and maintenance cost by dismounting.
Description of drawings
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in further detail.
Fig. 1 is a kind of embodiment schematic diagram that the shank of pattern bar yarn guide of warp knitting machine of the present invention combines with syringe needle.
Fig. 2 is along the profile of A-A line among Fig. 1.
Fig. 3 is the another kind of embodiment schematic diagram that the shank of pattern bar yarn guide of warp knitting machine of the present invention combines with syringe needle.
Fig. 4 is a kind of structural representation of syringe needle shown in Fig. 3.
Fig. 5 is along the cutaway view of B-B line among Fig. 3.
Fig. 6 is the another kind of structural representation of syringe needle shown in Fig. 3.
Fig. 7 is a kind of embodiment schematic diagram that the shank of pattern bar yarn guide of warp knitting machine of the present invention combines with needle stand.
Fig. 8 is a kind of structural representation of needle stand shown in Fig. 7.
Fig. 9 is a kind of structural representation of shank shown in Fig. 7.
Figure 10 is the another kind of embodiment schematic diagram that the shank of pattern bar yarn guide of warp knitting machine of the present invention combines with needle stand.
Figure 11 is a kind of structural representation of needle stand shown in Figure 10.
Figure 12 is a kind of structural representation of shank shown in Figure 10.
The specific embodiment
Referring to Fig. 1 to pattern bar yarn guide of warp knitting machine shown in Figure 12, it is made of shank 1, syringe needle 2 and needle stand 5, and an end of described syringe needle 2 is provided with thread guide eyelet 2-1, and the other end is plugged among the endoporus 1-1 of described shank 1 end, described shank 1 is splits with needle stand 5, and shank 1 is fixedlyed connected with needle stand 5; Splicing position 3 at described syringe needle 2 and shank 1 is provided with the punching press fitting portion 4 that at least one is fixed together both.
Referring to Fig. 1,2, described punching press fitting portion 4 is made of to first projection 1-2 of endoporus 1-1 periphery protrusion and the pit 2-2 tabling on syringe needle 2 peripheries shank 1 lateral surface.The shape of the described first projection 1-2 can be hemispherical, circular cone shape or other shape, and the shape of the shape of described pit 2-2 and the first projection 1-2 is suitable; Described pit 2-2 can be by specific purpose tool when punching press makes the first projection 1-2, and the local surfaces of syringe needle 2 peripheries forms through plastic deformation, also can make with cutter processing on syringe needle 2 in advance.Such punching press fitting portion 4 can be provided with two in the same side of shank 1, like this than a better reliability only is set; Certainly, be adjacent to be provided with two above better effects if.Such punching press fitting portion 4 also can be set to two pairs, and as shown in Figure 2, every pair is made of two adjacent punching press fitting portions 4 respectively, and is separately positioned on the relative both sides of shank 1, and as front side and rear side, such layout makes that syringe needle is more difficult to come off from shank.
Referring to Fig. 3 to Fig. 5, described punching press fitting portion 4 is made of to endoporus 1-1 periphery second projection 1-3 that protrudes and the recess 2-3 tabling that circumferentially extends along syringe needle 2 peripheries shank 1 lateral surface.Its manufacture method is: process recess 2-3 with milling cutter earlier on syringe needle 2, its degree of depth is generally 0.2~0.5 millimeter, uses the lateral surface of stamping tool punching press shank 1 again, and it is protruded to endoporus 1-1 periphery direction, form the second projection 1-3, this second projection 1-3 just in time embeds among the recess 2-3.For syringe needle being connected with shank more reliably and being convenient to processing, can shank 1 relative bilateral symmetry be provided with two punching press fitting portions 4.Certainly, like this must be in advance the bilateral symmetry of described syringe needle 2 axis process two recess 2-3.For the processing of being more convenient for, as shown in Figure 6, can make the whole circumferential extension of recess 2-3 along syringe needle 2 peripheries, the punching press location of stamping tool on shank 1 lateral surface will be more prone to.
Referring to Fig. 7 to Fig. 9, described needle stand 5 is convex shape, and offers groove 5-1 at its top; Described shank 1 both sides offer positioning recess 1-4, and described shank 1 is inlaid in tightly by narrow 1-5 of the shank between positioning recess 1-4 among the groove 5-1 of needle stand 5 and fixedlys connected with needle stand 5; Also can take spot welding to reinforce at narrow 1-5 of shank and the groove 5-1 place of combining, like this in conjunction with better effects if.
Referring to Figure 10 to Figure 12, described needle stand 5 is convex shape, and is provided with at least one location needle stand hole 5-2 at its top, and the present invention is provided with 2; Described shank 1 is provided with size, position and needle stand hole, the described location corresponding location of 5-2 needle bar hole 1-6, the present invention also correspondingly is provided with 2, and described shank 1 is fixedlyed connected with needle stand 5 by pack close-fitting bearing pin 6 in location needle bar hole 1-6 and location needle stand hole 5-2.Described location needle stand hole 5-2 can be blind hole and also can be through hole, and processing is more convenient during for through hole.
Shank 1 of the present invention can be made by carbon fibre material, and is also harder than steel because of carbon fiber is also lighter than aluminium, and its proportion is 1/4th of iron, and specific strength is ten times of iron, thereby weight and the prolongation that alleviates thread-carrier benefited its service life.
The present invention only needs syringe needle is extracted from shank under the situation that syringe needle, shank or needle stand damage, and perhaps shank is extracted from needle stand, and used certainly power is bigger, can change corresponding parts then and get final product by execution of instrument.