CN2242485Y

CN2242485Y - Signal reading arrangment

Info

Publication number: CN2242485Y
Application number: CN95228215U
Authority: CN
Inventors: 骆顺荣
Original assignee: Glorious Polytron Technologies Inc
Current assignee: Glorious Polytron Technologies Inc
Priority date: 1995-12-11
Filing date: 1995-12-11
Publication date: 1996-12-11
Anticipated expiration: 2005-12-11

Abstract

The utility model relates to a signal reading device, comprising a machine body, a circuit board arranged in the machine body, and a hole which is arranged at the bottom of the machine body and is used for installing a sphere. In addition, the interior of the machine body is provided with a pair of encoders, wherein each group of encoder is provided with a grating wheel, a light source and a sensor in advance on a fixed seat, and then is combined on the circuit board through a clamping tenon and a convex pin at the bottom of the fixed seat. An idler arranged between a roller and the sphere which are arranged on the mandrel of the grating wheel is arranged on the fixed seat, in order to transfer the rolling friction of the sphere to the roller, and to make the position of the mandrel of the grating wheel appropriately rise, so the diameter of the grating wheel is enlarged, the signal reading is more accurate and the operation of a tin furnace is convenient.

Description

Signal read fetch device

The utility model relates to a kind of Signal read fetch device, especially refer to a kind of can convenient elements such as grid wheel, light source and sensor being assembled on the circuit board, and make grid wheel arbor position be able to suitable rising, it is more accurate that signal is read, and can be convenient to the Signal read fetch device of tin furnace operating.

Known Signal read fetch device can be divided into three kinds of mechanical type, optical profile type and half optical profile types, on half optical profile type Signal read fetch device, its structure includes a body substantially, and inside is provided with a circuit board, and organism bottom has a hole so that a spheroid to be installed, and this spheroid can freely roll in hole; Be provided with in addition a pair of scrambler in body, each group coding device all includes grid wheel, and the axle of grid wheel is extended and formed rolling friction with spheroid towards spheroid, so also rotation simultaneously of grid wheel when spheroid rotates.

Side at the grid wheel is provided with a light source and a sensor respectively in addition, take turns in grid by the irradiate light that this light source sent, sensor then is arranged on the peripheral position near this grid wheel, to receive the light that periphery was emitted by the grid wheel, when the grid wheel rotates, the light that light source sent can be subjected to the grid wheel and go up covering of lightproof part, and receive the light that light source sends, these two kinds of situations then can be with 0,1 represents that (wherein 1 represents printing opacity, 0 expression is light tight), in grid wheel rotation continuously (no matter being clockwise or counterclockwise), just can obtain 11,01,00 and 10 4 kind of signal, these signals through circuit boards conversion after, just the vernier on the removable screen, and scrambler has two groups, thus can distinguish moving of controlling level direction and vertical direction, or any direction moves on the screen.

Yet, above-mentioned known Signal read fetch device, because the grid wheel forms rolling friction with axle end one roller and spheroid and rotates to drive this spheroid, so the axle of grid wheel must maintain certain height, roller in order to the axle end is done suitable contacting with spheroid, therefore the grid wheel arbor can't be done a suitable rising in response to needs, so grid wheel lower edge part is often crossing with the circuit board of its below, make circuit board when crossing the tin stove, the grid wheel is because the restriction of material can't be crossed the tin stove, together therefore only after circuit board is crossed the tin stove, can install the grid wheel, cause the restriction on the package program; And the axle of grid wheel maintains certain height, the related grid wheel diameter that makes is restricted, can't be in response to required and increase, if increase the grid wheel diameter, certainly will make grid wheel lower edge touch body, however the increase of this grid wheel diameter, and it is more accurate to make signal read, so, be restricted even signal reads degree of accuracy if can't increase the grid wheel diameter.

Moreover, because interelement relative positions such as grid wheel, light source and sensor are also concerning that signal reads degree of accuracy, install deviation to some extent as if these elements, promptly can cause and detect bad or failure, yet, because known techniques all is welded in elements such as grid wheel, light source and sensor on the circuit board respectively, inconvenience greatly when therefore causing these elements to be provided with, often need to adjust through time-consuming location, the location that can finish this element increases the inconvenience on manufacturing.

In view of this, fundamental purpose of the present utility model is to provide a kind of Signal read fetch device, and it can make grid wheel arbor position be able to suitable rising, so that the grid wheel diameter increases, it is more accurate that signal is read, and the grid wheel can be increased to fully the circuit board top, so that cross the operation of tin stove.

Another purpose of the present utility model is to provide a kind of Signal read fetch device, and it can finish assembling rapidly with grid wheel, light source and sensor on the circuit board, and adjusts when not costing.

The Signal read fetch device that provides according to the utility model, it includes a body, this body top sealed one has the loam cake of several buttons, internal body is provided with a circuit board, organism bottom has a round hole so that a spheroid to be installed, in body and be provided with a pair of scrambler, each group coding device includes grid wheel; Wherein, one end of the axle of this grid wheel is installed with a roller, grid wheel below is provided with a holder, this holder is provided with the axle that tabular bearing articulates the propping bar wheel, be pivoted with an idle pulley on the bearing in addition, this idle pulley is arranged at the position lower than roller, and between the roller and spheroid on the axle of grid wheel, and contact with roller and spheroid simultaneously, transmit the rolling friction of spheroid to roller by idle pulley; At grid wheel side one light source and a sensor are set respectively, this light source and sensor are to be individually fixed in locating slot; This holder bottom surface has protrudes trip and the location protruding pin be hook-shaped, and this holder promptly is fastened in the trip of bottom surface and protruding pin behind elements such as pre-aligned installing grid wheel, light source and sensor and sets in advance on the circuit board in the relative connecting hole and pilot hole.

Because the setting of this idle pulley can make the axle position of grid wheel be able to suitable rising, is beneficial to the operation that the grid wheel diameter increases and be convenient to the tin stove.

The utility model is to reach above-mentioned purpose and design and function thereof that structure is adopted, will illustrate in detail with the preferred embodiment conjunction with figs.:

Fig. 1 is a three-dimensional combination figure of the present utility model.

Fig. 2 is a three-dimensional exploded view of the present utility model.

Fig. 3 is the vertical view of scrambler of the present utility model and spheroid part.

Fig. 4 is the side view of scrambler of the present utility model and spheroid part.

See also the utility model Signal read fetch device shown in Fig. 1,2, its structure includes a body 10 substantially, the loam cake 11 that can sealed one on this body 10 has several buttons 12, so that body 10 inside are closed, these body 10 inside are provided with a circuit board 13, and body 10 bottoms have a round hole 14, and a spheroid 15 can be installed, and this spheroid 15 can freely roll in hole 14.

In body 10, be provided with a pair of scrambler 16 in addition, each group coding device 16 all includes grid wheel 17, the axle 18 of this grid wheel 17 is extended towards spheroid 15, these axle 18 1 ends are installed with a roller 19, these grid are taken turns 17 belows and are provided with a holder 20, be provided with respectively on this holder 20 and have the hole of holding 21,22 and 23 tabular bearing 24,25 and 26, so that articulate the axle 18 that supports this grid wheel 17, and make grid wheel 17 and roller 19 lay respectively at bearing 24 inboards and bearing 25, between 26, and in

bearing

25,26 lateral margins offer two in addition and are positioned at the level hole 27 of holding, 28, one idle pulley 29 is located at the position low than roller 19, this idle pulley 29 with axle 30 hub settings at its two ends in

holding hole

27,28, make this idle pulley 29 between the roller 19 and spheroid 15 on axle 18 1 ends of grid wheel 17, and contact with roller 19 and spheroid 15 simultaneously, the setting of this idle pulley 29 can be transmitted rolling friction to the roller 19 of spheroid 15 and (please be consulted Fig. 3 simultaneously, shown in 4).

In addition take turns 17 sides one light source 31 (as LED etc.) and a sensor 32 are set respectively at grid, this light source 31 and sensor 32 build-in respectively are positioned in locating

slot

33 and 34, offer two perforation 35 in locating slot 34 sidewalls in addition, be beneficial to sensor 32 and receive the light that penetrates by grid wheel 17.This locating

slot

33 and 34 top are respectively arranged with location-

plate

36 and 37, to help the location of light source 31 and sensor 32.

These holder 20 bottom surfaces have two at least and protrude a trip 38 and a location protruding pin 39 that is hook-shaped, behind these holder 20 pre-aligned installing grid wheels 17, light source 31 and the sensor 32, it directly can be fastened in the trip 38 of bottom surface and protruding pin 39 and set in advance on the circuit board 13 in relative connecting hole 40 and the pilot hole 41, grid wheel 17 is positioned on the circuit board 13.

The light that light source 31 is sent is just perpendicular to grid wheel 17, and sensor 32 just is positioned at the peripheral position near this grid wheel 17, to receive the light that periphery was emitted by grid wheel 17.When grid wheel 17 rotates, the light that light source 31 is sent can be subjected to covering of lightproof part on the grid wheel 17, and receive the light that light source sends, these two kinds of situations then can be with 0,1 represents that (wherein 1 represents printing opacity, 0 expression is light tight), in grid wheel 17 rotation continuously (no matter being clockwise or counterclockwise), just can obtain 11,01,00 and 10 4 kind of signal, after these signals are changed through circuit board 13, just the vernier on the removable screen, and scrambler 16 has two groups, thus can distinguish moving of controlling level direction and vertical direction, or any direction moves on the screen.

Because the setting of idle pulley 29 can make axle 18 positions of grid wheel 17 be able to suitable rising, increases so that grid are taken turns 17 diameters, it is more accurate that signal is read, and grid can be taken turns 17 and be increased to circuit board 13 tops fully, so that cross the operation of tin stove.In addition, grid wheel 17, light source 31 and sensor 32 can be assembled in holder 20 in advance, so that be assembled in rapidly on the circuit board 13, and adjust when not costing.

In sum, the utility model has improved the grid of known Signal read fetch device really and has taken turns problems such as height-limited system and assembling inconvenience, has novelty and progressive.

And the above only is a preferable possible embodiments of the present utility model, non-so promptly arrest limit claim of the present utility model, so the equivalent structure that all utilizations instructions of the present utility model and accompanying drawing content are done changes, and all in like manner all is contained in the scope of the present utility model, closes and gives Chen Ming.

Claims

A kind of Signal read fetch device, it includes a body, and this body top sealed one has the loam cake of several buttons, internal body is provided with a circuit board, organism bottom has a round hole so that a spheroid to be installed, and in body and be provided with a pair of scrambler, each group coding device includes grid wheel; It is characterized in that: an end of the axle of this grid wheel is installed with a roller, grid wheel below is provided with a holder, this holder is provided with the axle that tabular bearing articulates the propping bar wheel, be pivoted with an idle pulley on the bearing in addition, this idle pulley is arranged at the position lower than roller, and between the roller and spheroid on the axle of grid wheel, and contact with roller and spheroid simultaneously; At grid wheel side one light source and a sensor are set respectively, this light source and sensor are individually fixed in locating slot; This holder bottom surface has protrudes trip and the location protruding pin be hook-shaped, promptly is fastened in the trip of bottom surface and protruding pin behind the elements such as the pre-aligned installing grid of this holder wheel, light source and sensor to set in advance on the circuit board in the relative connecting hole and pilot hole.