A kind of magnetic holding electromagnetic needle selector
Technical field
The utility model is related to a kind of structure compositions of electromagnetic needle selector, and in particular to a kind of magnetic keeps electromagnetic needle selector
Overall construction design belongs to slide cam selector technical field.
Background technology
Electromagnetic needle selector is chiefly used in textile machine, such as circular knitting machine.With the high speed development of electronics circular knitting machine industry, circular knitting machine
Upper slide cam selector performance requirement is continuously improved, slide cam selector be used for implementing needle selection control in circular knitting machine control system execute member
Part, thus its structural compactness and the easy performance of installation directly affect the braiding speed, jacquard weave quality and needle selection of circular knitting machine can
By property and efficiency of assembling.The voltage signal that controller is sent is received when slide cam selector works normally, and passes through the iron core being magnetized
Interaction between permanent magnet pushes needle selection cutter head to be rotated around shaft.Electromagnetic needle selector used at present is connected in using 8
Shell together makes 8 road slide cam selectors be installed on together, and this structure has processing complexity, of high cost;Efficiency of assembling is low, base
Parasexuality is poor;Heat dissipation effect is poor, the big disadvantage of degree of disturbance.
Therefore, a kind of easy to process it is necessory to provide for the above situation, it is compact-sized, assemble easy specification, heat dissipation
Effect is preferable, the low electromagnetic needle selector structure of degree of disturbance, to improve the working efficiency of circular knitting machine.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of magnetic keep electromagnetic needle selector, have cost compared with
Low, compact-sized, easy for installation, heat dissipation is quick, the small feature of degree of disturbance.
In order to achieve the above object, the technical solution of the utility model is:
A kind of magnetic keeps electromagnetic needle selector, including main casing, and fixed frame pedestal and 8 are equipped in the main casing simultaneously
The single channel slide cam selector of setting is arranged, the main casing surface is equipped with cover board by the groove built in both sides;The main casing
Top is equipped with the front limit baffle for offering slide cam selector limit hole, rear postive stop baffle.
The single channel slide cam selector includes cutter head fixed block, cup-shaped shell and iron core;In at the top of the cutter head fixed block
Embedding to be equipped with cutter head, the cutter head fixed block bottom is embedded to be equipped with permanent magnet fixture block;The cutter head and permanent magnet fixture block
Between cutter head fixed block on shaft is installed, the shaft is movably arranged on main casing;The cutter head is passed through and is opened up
It is located at outside main casing after having the slide cam selector limit hole of the front limit baffle of slide cam selector limit hole;Installation in the permanent magnet fixture block
Have the poles N in permanent magnet upper, that the poles S are under, the poles S in permanent magnet upper, that the poles N are under, and the poles N in the upper, poles S under
Permanent magnet and the poles S be connected in permanent magnet upper, that the poles N are under;Cored, described iron core is installed on the fixed frame pedestal
On be nested with cup-shaped shell, cored plastic sheath is set on the iron core being located in cup-shaped shell, on the iron core
It is set with coil outside iron core plastic sheath.
It is connected by screw between the cover board and main casing.
The beneficial effects of the utility model are:The electromagnetic needle selector of the utility model is arranged side by side using independent 8
Single channel slide cam selector, and using the cup-shaped shell of semi-open structure, the heat that coil generates can timely and effectively be distributed, together
When can preferably completely cut off interference caused by the closed loop magnetic field that adjacent single channel slide cam selector generates, and facilitate and draw two of coil
Copper wire is to driving plate, and this shape processing is easy, can be suitable for the application that magnetic keeps slide cam selector, together by metal plate around being formed
When reduce influence of the single channel slide cam selector shell magnetic loop to other several roads as far as possible, make its reliability and stability higher.
Relatively low with cost, compact-sized, easy for installation, heat dissipation is quick, the small feature of degree of disturbance.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model;
Fig. 2 is the enlarged diagram of single channel slide cam selector in Fig. 1;
Fig. 3 is the amplification principle figure of initial position when single channel slide cam selector does not work in Fig. 1;
Fig. 4 is amplification principle figure when single channel slide cam selector works in Fig. 1.
Specific implementation mode
A kind of magnetic of the present embodiment keeps electromagnetic needle selector, as shown in Figure 1, 2, including main casing 1, the main casing 1
Fixed frame pedestal 4 and 8 single channel slide cam selectors 2 arranged side by side are inside installed, 1 surface of main casing passes through built in both sides
Groove is equipped with cover board 3;It when assembly, the groove built in main casing 1 is first passed through by cover board 3 pushes to slide and be pressed into, then pass through cover board 3
Two threaded holes be connected using screw and main casing 1.1 top of main casing, which is equipped with, offers slide cam selector limit hole
Front limit baffle 5, rear postive stop baffle 6.
The single channel slide cam selector 2 includes cutter head fixed block 22, cup-shaped shell 28 and iron core 27;The cutter head fixed block
22 tops are embedded to be equipped with cutter head 21, and 22 bottom of cutter head fixed block is embedded to be equipped with permanent magnet fixture block 24;The knife
Shaft 23 is installed, the shaft 23 is movably arranged on main casing on the cutter head fixed block 22 between first 21 and permanent magnet fixture block 24
On body 1;The cutter head 21 is located at main casing after the slide cam selector limit hole for the front limit baffle 5 for offering slide cam selector limit hole
Outside body 1;Be equipped in the permanent magnet fixture block 24 poles N permanent magnet 29 upper, that the poles S are under, the poles S in the upper, poles N under
Permanent magnet 210, and the poles N are solid in permanent magnet 210 upper, that the poles N are under in permanent magnet upper, that the poles S are under 29 and the poles S
Even;Therefore cutter head 21, cutter head fixed block 22, permanent magnet fixture block 24, the poles N are in permanent magnet 29 upper, that the poles S are under, the poles S in upper, N
Permanent magnet 210 of the pole under is a small entirety, can be rotated around shaft 23.Iron is installed on the fixed frame pedestal 4
Core 27 is nested with cup-shaped shell 28 on the iron core 27, iron is set on the iron core 27 being located in cup-shaped shell 28
It is set with coil 26 outside iron core plastic sheath 25 on core plastic sheath 25, the iron core 27.The iron core 27 is by iron core plastics
Set 25 is isolated with coil 26, while cup-shaped shell 28 is nested on iron core 27, and semi-surrounding lives coil 26.Have benefited from cup-shaped
Shell 28 it is semi-open, the heat that coil 26 generates can timely and effectively be distributed, while can preferably completely cut off phase
Interference caused by the closed loop magnetic field that adjacent single channel slide cam selector 2 generates, and facilitate two copper wire for drawing coil 26 to driving plate, and
And this shape processing is easy, and it can be by metal plate around being formed, cost is relatively low.
A kind of magnetic of the present embodiment keeps electromagnetic needle selector, and the initial position when not working is as shown in figure 3, the wherein poles N exist
Permanent magnet 29 of the upper, poles S under, in permanent magnet upper, that the poles N are under 210, the two are connected firmly together and by permanent magnet card for the poles S
Block 24 is fixed and the two magnetizing direction is opposite;It is similar since magnetic keeps the iron core 27 in electromagnetic needle selector inherently to have magnetism
Permanent magnetism volume property, starting stage iron core upper end show S grades, and lower end shows N grades, and iron core 27 exists to the left side poles N in the upper, poles S
Under permanent magnet 29 there is repulsion, there is suction in permanent magnet 210 upper, that the poles N are under to the right side poles S, and due to permanent magnet card
Block 24 connects firmly effect, so that the two is jointly subjected to an anticlockwise torque, therefore cutter head 21 is also by counterclockwise one
A torque, and the effect of the front limit baffle 5 due to offering slide cam selector limit hole, so original state cutter head 21 is maintained at
Limit right positions, that is, cutter head 21 abut the right side of the limit hole on the front limit baffle 5 for offering slide cam selector limit hole
Wall.When electromagnetic needle selector is under reversed high pulse voltage, by applying different voltage directions, the magnetism of iron core 27 to coil 26
Variation be upper end N grades, lower end S grades, and the poles N in permanent magnet 29 upper, that the poles S are under and the poles S in permanent magnet upper, that the poles N are under
210 magnetism will not change, therefore cutter head 21 is abutted and opened to left side, that is, cutter head 21 with the clockwise oscillation of permanent magnet
The left side wall of limit hole on front limit baffle 5 equipped with slide cam selector limit hole.State is as shown in Figure 4 at this time.Therefore at interval of
A period of time gives a positive pulse voltage appropriate, then certain interval of time gives an appropriate negative pulse voltage, by giving
Coil 26 applies different voltage directions, and needle selection cutter head 21 is made to swing to other side extreme position from side extreme position to carry out
Needle selection.To control whether its external corresponding pattern bit is pressed into needle tray, to control whether knitting needle enters triangle, jacquard weave is realized.
The electromagnetic needle selector of the present embodiment uses independent 8 single channel slide cam selectors arranged side by side, and uses semi-open knot
The heat that coil generates can timely and effectively be distributed, while can preferably completely cut off adjacent single channel by the cup-shaped shell of structure
Interference caused by the closed loop magnetic field that slide cam selector generates, and facilitate two copper wire for drawing coil to driving plate, and this shape
Simple processing can be suitable for magnetic and keep the application of slide cam selector, while reducing single channel needle selection as far as possible by metal plate around being formed
Influence of the device shell magnetic loop to other several roads makes its reliability and stability higher.It is relatively low with cost, compact-sized, peace
Dress is convenient, and heat dissipation is quick, the small feature of degree of disturbance.