JPS59213274A - Linear pulse motor - Google Patents

Abstract

PURPOSE:To alleviate the influence to the thermal expansion of a core and to reduce noise of a linear pulse motor by applying magnetically attracting forces of steps of a slider of the motor symmetrically to the center line of advancing direction. CONSTITUTION:A linear pulse motor is driven and controlled by a magnetic flux based on a permanent magnet 18 and a magnetic flux based on the excitation of coils 20, 21 provided on a toothed pole for a slider 12. The motor is incremented by the excitation of the poles 13a-13d, 14a-14d, 15a-15d disposed substantially at the equal distance to the center in the advancing direction of the slider 12, and the magnetic fluxes are generated independently at the respective poles. With such a structure, since the magnetically attracting forces of the steps of the motor are applied to the substantially symmetrical positions from the center of the slider 12 in the longitudinal direction of the slider 12, the balance at the front and rear can be always maintained, thereby eliminating the longitudinal movement. In this manner the influence to the thermal expansion of the core can be alleviated, and noise can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION This invention provides mutual interaction between magnetic flux from a permanent magnet and magnetic flux based on the excitation (Il,
- Concerning the structure of linear pulse smoke,
t'+ /:).

Generally speaking, the smoke is lr line a) revival' + V
Cbkl (1 For the purpose of accurate positioning, the modified example λ
- is based on the number (11) control < , 1-1'1 machine (Kai's [
I'm considering whether to adopt it for the monthly movement part or the tll pre-throat drive IS.

By the way, to give an example of this kind of linear pulse smoke order since rIt;

In other words, in FIG.
The tooth portions 1a are formed in a continuous manner in the longitudinal direction. 2 iI:l slider, two southern 9
1 no (J-2a, 2b4>Icku (lFl E i 2
c Connect by K (7-c consists of 11, each 1'), ・2
a, 2t) tooth part 2 a,, 2 a2.2 b,,
2 b.

C", 1/1 small tll'lsuv (Southern 2 a, ,
2 a2 and o' Ih jolt 2 b, , 2b
The spacing between 2 and λ'1 is 4.・The gap between Ruru 1/2 hits is 1-2, southern part 2a, 2b and u S'r - Lu Tosho 13'a (Osukeru'/4 Binona's gap is indicated.Lu(t( l solid) J-sa J suru o 2
d, 2 e kl coil, 2 J il 2 d (
It is attached continuously to the peaks 2a, 2a2 with the winding direction set in the direction of 71) or in the direction of the winding direction. Each tooth part 2 b, ,
21. ) 2 is wound in one direction as shown in the figure.

In the principle diagram of a linear pulse motor shown in Fig. 1, by controlling the excitation directions of each coil 2d and 2e in a decreasing order, we can obtain a magnetic flux of 62 c and a flux of Iiθ. By the phase If action, the movement of the slider 2 is obtained by the IA binoza of the tooth γ1μ.

However, unlike the conventional linear pulse smoke mentioned above,
Depending on the arrangement or spacing of Ill poles, parallel winding (for 44 configurations, linear J'
・Due to the Tanabata temperature change, the core and connecting plates expand and contract to compensate for the deviation in the magnetic pole pitch. This 7
1. ■ Stopping accuracy deteriorates in relation to (12) + tt
Variation in the correlation of forces becomes a dog. Therefore, electronic! If a linear smoke is used as the character feed motor of the ibritor, the text will be corrected according to the item in ■ above.
``f erasing)'' causes defects, and ``@'' causes return pink defects, which significantly lowers the quality of stamps.

Tsuno, i, l,; air suction) 1r 赳] ・Tsurikari-tsu'... 111 movement of the helical motor i (L row direction VCZJ-J- can of the center line) j1′/l, v
(Because there is no double, the progression lJ direction Cζt, i-(both ψj
1. 1. K
Applied magnetic attraction', strength of IJ, cross D-K anti-11v, [
2. Linear pulse
1), which caused considerable vibration, and then 0. ] I was heading towards the time when I was going to start the '-Yi of Reshiru Noimon. Magnetic attraction for each Sden knob)
The above-mentioned conventional drawbacks have been eliminated, and the winding method and magnetic pole spacing can be reduced using the following methods:
18Ai'f while reducing the degree of influence on thermal expansion.
There is a VC that finds the low 1 of (rl).

[1] The illustrated embodiment will be described in detail.

No. 21, 11t, a small d-side view of the principle of this invention,
Figure 3 (r↓ A-A cross section in Figure 2) V. Each figure V
(4° C, ++ low scale, middle loss II eaves II a and this 1ib central tooth tjl (both sides across Ila vc @
+;) Force tooth'j<B, +1 Ill, 1111.
A equipment, each lateral tooth part II b, , II
+) Linear pulse of 2■ 5-ri 1.11 The phase i that forms an angle with the moving direction of the 1st mover 1 position t, 1 coincidence Sazuro and Tomo, center tai H' B eye a and side Square tooth 1'lt 11
b, + II t)2 tl':lhalf biy +'
7) Slerai■L Te'/" 6 Mo rubs 1, and the length of the central tooth part a is d〶] force tooth Fj1i It
11. , 1111. It is determined to be twice the length of each southern part of the area.

12 (ri misrider, magnetic pole iron divided into 3
: U, 14゜15, sub-1lI (i, 17, permanent magnet 18, hack play 119, coil 2G, 2
1 J: Constructed.

7)-6. Let's move on to the specific configuration of this slider 32 (see 11I). Sunzu, magnetic pole button, shi-13,
14, 15 (advance of d slider 12) The matching position in the direction perpendicular to the direction is also -4 11iB% 13a-13d
, Ida~14d, 15a~15(] I:
ii jt, Sube 4 Nos 16 and 17 are placed between the phase cars (I 4t indicates the cutoff state of the sharp turn. Then, substituting the magnetic pole iron core opening and explaining the positional relationship of the magnetic poles,
41;i (iii l:la, I3d l'
J',! j ini sql th gl (Q1+ with t,
, has a note t'1 of 1/21-]-+1, and the coil 2
0 is repeated 178 times in opposite directions. - force, magnetic pole 14 t), 14 (・(1rIp
(i'Binona Nozu 11 and sword) Tsu'aB & +
3 a.

Expansion d (+1 to sea J, '/4e) Correct the deviation of 1,000 and 2': j1 le 21 or lJ-i l' (continuous in the opposite direction (・' (be rotation sa) 1 ]-There is.Next is Mizukumineishi 18
(!Yu each magnetic pole iron, shi・eye, l・1.15+') back i/
(Oi (Illustrated polarity 1' (store magnetically arranged tl,) 3
,・It's me, Hano'Noble-li'Jj! l magnetic path type j'
y, 5-use, 1st iron - 614 no I (+'mic; I
etc.) 118-pole iron core 1: (, +5 (outer fl] 1] (l (arrangement to t161 rule)) "Nosaku fc ratio 7 to 2 (N this 1 so 6. I j s 4) do.

1.;C Structure K of the embodiment shown in Fig. 2 and Figs.
l;-Reso C1 The action is shown in Figures 4 to 71. "・) When the coil 205-excites 18, the magnetic J, lll1I3a, Lla, 1
5a no 0' 4θ pole I (d, Is d, 15
d generates a magnetomotive force in the upstream direction (1(n) shown in the figure.
t', l series, each magnetic pole 1, (a~
13d.

14 a -1=ld, 15 a ~ 1.5 d
The direction of the phantom direction with the second circle (!1 is not shown in the diagram, but is westward.) Next, at the same time as the excitation to the coil 20 is cut off, the excitation of the coil 21 is energized by 1μ (at this time magnetic pole 13
b, 14 b, 1.5 b nordhi magnetic pole 1.3
c, 14c, 15c
) and now each magnetic pole], i a ~]: (d
, lda~14d, 15a-15d scale lj
What is the state of occurrence of the 6-figure bundle r't? , if it is as indicated by diagonal lines in Figure C]. In this case, slider J2 is moved 1/1 to the h side when switching the mote shown in Figures 1 to 5.

Move the pitch. Furthermore, as shown in Figure 6 (a) K -
When J coil 0 is energized, a small drop (fO in Fig. 6 in the same figure) is shown by K diagonal line (orthogonal surface or C, magnetic flux comes out, 81'!1/1 from the position in Fig. 5).
4-pitch slider 12 changes its function. Next, the coil 20 is energized again from the fill 21 with the polarity shown in FIG.
When C, 14 C, and 15 C are excited, the magnetic flux becomes rC as shown in FIG. 7(B). Konoshiku〆(,,1,'=)-C inner layer 1/4 binoji change can. From then on, the steps shown in FIG. 4 (/(return to elementary school-1-7-1) and repeat the same actions to achieve the IA biy-f]'-) step and iL action.

The explanations in Sections 3 and 1 describe the most basic mechanism in which the magnetic pole is one southern part, but the thickest magnetic pole is formed with multiple teeth. There is.

1/This is an example of dividing the iB polarity into three parts. Apply magnetic attraction force (it is sufficient if it is 1 blue, in the direction of A2?-rlj of the slider -12).
Even if it's split into two, no.

force, Ij on the scale L side, half pino-fj) 4-
Although it forms the southern part of the island, slider 1
111 is set so that each magnetic pole VcJ
Further, application of this invention] C11, 1 pin 2, 1" motor only 4, 2 seconds 11, 14" motor and L-C3
It is also possible to set the 6 poles of the gradient and make it carry the 1/6th of the 1/6 inch length of the movement 1'1.

1 no, -1, as mentioned +l(, Liny j' Hals T:-ta((II Mizukui 1μE1((, J
, (1g3 i+B 6F!t for magnetic flux and slighter
'4 < K Rin (Rashift J I/L/I) Based on excitation < +14.4! > A phase with r! r,', ('+
A basic 11" 4-V (up to the river and controlling the drive)
Center to move in the direction of slider movement, ': ? : I is equal to y + J separation + f (each pair of magnets (by excitation 18 of the jar, step, i (movement 6 cow se 1.), and the magnetic flux is each (the poles are j, and JJ! 1) '7.1- (This configuration is based on the following: - The magnetic attraction force of each step of the C linear pulse motor and the magnetic attraction force in the longitudinal direction of the slider. Silk is gu・'' (in addition to b/c, the front and back balance is ′
7i'; IIC can hold 8fl and does not move back and forth. Therefore, after 14!L of vibration, it is possible to reduce the noise.

Since the magnetic center (female fixed point) of each pair of magnetic poles V (tsu, ・(＾−C1'+'+! '/) which receives excitation (iB) is determined by force, u, 14, φ・ノ( Due to expansion = Noah's elongation O
Even if ・occurs, there is room for the characteristics to change 4・ku, Hatakeshiko i, +
The 7th stop lti degree is 11I to J.

[Brief explanation of the drawing]

11th Ik, '1.4iL An example of a linear motor is shown in Figure 2. --- Evening 11 J, 1, A-A sectional view of Figure V11, No. 41
Ji, 5th Inn 1, Fig. 6, Fig. 7 (dMovement 1 of this invention
'1ζL,, (1. This is a diagram of the operating principle of the clearing mechanism. 11 School

Claims (1)

[Claims] ■Magnetic flux based on permanent magnet and slider river tooth magnetic pole (+
In the basic configuration in which the driving force is obtained through interaction with the magnetic flux based on the excitation of the iii/C coil, the magnetic pole iron core is divided into a plurality of pieces in a direction perpendicular to the direction of movement of the slider, and each magnetic pole iron and 1.・ is divided into two groups whose magnetic attraction forces to the scale teeth are evenly distributed, and the two iron ・b! jY is 1/with respect to the scale teeth
The two-pitch bar is configured so as to face I, S, and J, and each magnetic pole is paired with magnetic poles that are approximately equidistant from each other with the middle position in the slider's advancing direction. A linino' pulse septator characterized by being equipped with means for sequentially switching the excitation of the magnetic poles to step by a constant number of steps.