CN2036300U - Automatic circulation advertisement lamp box - Google Patents

Abstract

The utility model discloses an advertisement lamp box of which picture materials are transparent case front slice, a photographic paper and a polyester film printed matter, in particular to an automatic advance advertisement lamp box which can automatically circularly send out a plurality of printed advertisements and posters with large size and long tome photography with a positioning regulating mechanism. The utility model can be widely used for product advertisements, poster propaganda, exhibition arrangement, windows displaying and electric audio-visual instruction in schools. The utility model mainly comprises a lamp housing, a roll used for clamping, rolling and storing winding films, a sink roll used for supporting and guiding the winding films, a photoelectric sensor used for positioning, timing and setting data to a frame, a controlling single chip microcomputer and a mechanical driving arrangement.

Description

Automatic circulation advertisement lamp box

The utility model is that a kind of being used for is the advertising lamp box of picture material with diapositive, printing paper, mylar printed matter mainly.Especially relate to can Automatic Cycle broadcast several, large scale, long paper photography, printed advertising, placard, and the auto-slide advertising lamp box of positioning regulating mechanism is arranged.Can be widely used in the electronic teaching of product advertising, placard propaganda, exhibition layout, window display and school.

It is fixed that existing advertising lamp box is mainly picture, and it is few to provide information, and change trouble.The recent old billboard of photoelectric tube square that occurs is though can change automatically.But because lattice matrix is careless relatively, be mainly used in copy, and dull coloring, lack level, projection needs certain screen distance, and the outer light path of machine is subject to disturb, and it is more to lay space constraint, is difficult to popularize.

But the purpose of this utility model is a kind of Automatic Cycle of design broadcasts several, the advertisement of large scale colourful transparent photographic positive film etc. systems, the advertising lamp box of placard, and make it possess to store and contain much information, image is true, accurately, lively, characteristics that light is soft.To adapt to the needs of advertising develop rapidly.

Implementation of the present utility model is, utilizes elongated cylindrical reel and deflector roll, stores, broadcasts several long paper picture, utilizes the torsion spring that is installed on reel inside given, regulates roll film tension force, and carries out the reducing compensation automatically; Combine with microcomputer by photoelectric sensor and to carry out picture location, and put number, counting, regularly and commutation control by single chip microcomputer.

Below in conjunction with accompanying drawing an instantiation of the present utility model is described:

Can be found out by accompanying drawing: the utility model is mainly by lamp house (25), and reel (9), (10), deflector roll (14) (27) mechanical driving device, photoelectric sensor (19) reach special-purpose control one-chip computer compositions such as (16).

Lamp house (25) is the housing of thin plate punching, its symmetria bilateralis studs with rhombohedral crystal cotton ginning glass (23), frosted glass (22), in be equipped with one row fluorescent tube (24), the rhombohedral crystal pattern glass is done multidirectional catadioptric as corner reflector with light, and frosted glass is done light and overflow instead, transmission makes light field evenly soft.

Be provided with reel (9), (10) of two elongated cylindrical, the outside of two winding drum all is milled with the narrow groove of a trapezoid cross section, cooperates with corresponding press strip (11), in order to clamping certificate sheet.Reel (9) inner chamber bottom kink axle (8), on the protruding dish of axle (8) column type torsion spring (7) is housed, one end of this torsion spring is stuck on the protruding dish of axle (8), the other end is stuck on the interior muscle of reel (9), make the two formation resilient connection, gear (4) is equipped with in axle (8) bottom, lead key (12), and gear can move up and down by axle (8).The lower shaft of reel (10) is connected with interference fit and cylindrical shell, its lower end is with the flat key gear (6) that is being connected, each two of left and right sides deflector roll (14), (27) are installed in respectively on the deflector roll bearing (28) and reel bearing (13) about lamp house, play a part to support and the guiding roll film.

Mechanical driving device is made up of worm screw (2) worm gear (3) gear (4) (5) (6) and axle system thereof.Motor (1), worm gear reducer and gear (5) are installed in the bottom of reel bearing; Gear (5) meshes simultaneously with the gear (4) (6) that is installed on reel (9) (10) axle.

Photoelectric sensor (19) is by spot light lamp bulb, compositions such as phototriode, shell block.Be installed in lamp house below and roll film black-tape corresponding position in this routine accompanying drawing 1, also can be contained on other and the black-tape relevant position, as shown in Figure 2 both for being installed on the left deflector roll bearing.Link to each other with single chip microcomputer (16) by lead.

Special-purpose control single chip computer (16) mainly is made up of 280CPU, 1/0 interface and ROM watchdog routine, sees accompanying drawing 4.

Assembly situation between the above each several part is: the deflector roll bearing (28) that two left deflector rolls are installed, with two winding drum is installed, the reel bearing (13) of two right deflector rolls is contained in the left and right sides of lamp house respectively, special-purpose single-chip microcomputer plug-in unit and power panel are contained on the base plate (29), base plate (29) is installed in deflector roll bearing (28) again, the bottom of reel bearing (13), constitute a framework, frame cover is with decoration panel (20), respectively stud with a clear glass (21) on coaming plate (26) the both sides decoration panels (20), as display screen, seam crossing is with cushion rubber and filler, two-stage sealing protection.

Course of action of the present utility model (referring to accompanying drawing) is as described below: the motion of motor (1) is given gear (4) (5) through worm screw (2) worm gear (3) gear (5) transmission simultaneously, gear (4) is by lead key (12), axle (8) and through this elastic link of cylinder torsion spring (7) drives reel (9); Gear (6) is by flat key, and being rigidly connected between lower shaft and cylindrical shell drives reel (10).Reel (9) is done in the same way with (10), but not exclusively with the rotation of speed, clamping is wound on the two winding drum, and can be changed automatically by the roll film picture of four deflector rolls supporting guiding.

Being applied to of roll film tensile force regulated and because of winding diameter changes the automatic compensation of the difference △ S of caused two winding drum folding and unfolding roll film, finished by torsion spring (7), and its action principle (referring to accompanying drawing 3) is as follows:

Being applied to and regulating of tensile force: be installed and be wound on the reel (9) (10) when roll film strides across four deflector rolls, and after stretching naturally, cocked gear (4), make itself and gear (5) drop out of gear, the contrary roll film coiling direction of axle (8) is rotated an angle, gear (4) and gear (5) are meshed again again, this moment, the self-locking action of worm screw can not forward be turned round axle (8), and can only have contrary roll film volume degree direction to recover elastic deformation trend, can apply a tensile force to roll film.(referring to accompanying drawing 3-a)

Determining of automatic compensation principle of reducing and tensioning angle referring to accompanying drawing 3-b, c, d.

Because spool (8), reel (10) during as if axle (8) and reel (9) rigid attachment, have only the winding diameter Dj when two winding drum with being driven by gear (5) ₉The moment of=Dj10, folding and unfolding roll film amount S ₉, S ₁₀Just in full accord, Dj in the overwhelming majority time ₉≠ Dj ₁₀, S ₉≠ S ₁₀, must cause the excessive tensioning of roll film or lax.Torsion spring (7) in the reel (9) can compensate automatically to this, as works as Dj ₉＜Dj ₁₀The time, S will be arranged ₉＜S ₁₀, roll film produces lax trend, and the tensioning moment of torsion spring this moment (7) will make reel (10) be rotated in the forward a low-angle, and △ θ has avoided the lax of roll film.

Work as Dj ₉＞Dj ₁₀, S will be arranged ₉＞S ₁₀, producing the trend of the excessive tensioning of roll film, excess enthalpy tensioning moment is passed to torsion spring (7) by reel (9), and the torsion spring distortion increases △ θ angle, and both reel reverse rotation △ θ angle made the not excessive tensioning of roll film.

The determining of tensioning angle both satisfied the requirement of minimum tensioning moment when guaranteeing that offset angle ± △ θ is maximum duration, do not make the suffered tensile force of roll film surpass the yield value of stress design of this material again.And outside the edge of gear (4) and reel (9), make groove, so that operation.

Realize with photoelectric detection method the picture location.(referring to accompanying drawing 1, Fig. 2)

The developing and printing of roll film (17) edge have a black photo-shield strip that 10mm is wide, on the black-tape in the middle of every width of cloth or per two width of cloth (double-sided display shape) picture, be equipped with an aperture (18), when aperture (18) is walked to photoelectric sensor (19) probe place, the aperture printing opacity, photoelectric sensor (19) provides signal to control single chip computer, sheet mechanism is moving, can realize more accurately locating.

The tensioning compensation method that the utility model adopted, both solved significantly in the roll film buckling force big with perforation, perforation intensity was lower when tooth rolled film trasport, was difficult for the problem of tensioning.Again owing to adopt two reels to link in the same way, offset angle △ θ and compensating torque △ T change very little, both avoided winding diameter to change caused roll film tension and loose, moment variations is excessive when also having solved simple use torsion spring roll film, and the problem of a lot of number of turns of can not reeling.Luminous point detection method location picture has also been simplified the technological requirement to developing and printing location, long paper sheet darkroom or the bonding contraposition of single width sheet, and this structure also can be used for other take-up device.

As shown in Figure 4; the working condition of single utility model control single chip computer can be sketched and be: the signal of photoelectric sensor is by 1/0 interface input computing machine (input interface is made up of two 74LS244); one these two interface are put for number and are decided scrambler; one by photoelectric sensor input shutdown number of times; through Computer Processing; by the rotating of driver (74LS273) output motor, stopping signal is again by relay control motor.

Adopt software timing, program is placed among the EPROM, and timing signal is sent into special purpose computer by photoelectric sensor after amplifying.

As shown in Figure 5, the utility model can be by changing reel assemblies, and the installation site of guide roller component reaches the connected mode with lamp house, and forms various appearance forrns, to adapt to the requirement of different occasions.I-deflector roll among Fig. 5 (or deflector roll reel) bearing.II-lamp house.III-reel bearing. The thin type two plane type The thin type one plane type

The single face built-in type Two-sided vertical Single face is vertical

The corner one plane type

The dihedral two plane type

Prismatic multiaspect formula.

Claims (7)

1, a kind of Automatic Cycle advertising lamp box, its main body is the lamp house that is provided with light source, of the present utility model being characterised in that: mainly by being used for clamping, reel, the reel (9) (10) of storage picture, be used for supporting, the deflector roll (14) (27) of guiding roll film, mechanical driving device and in order to picture is located, regularly, put several photoelectric sensor (19), control single chip microcomputer (16) is formed, elongated cylindrical reel (9) (10) is arranged on lamp house one side or is separately positioned on the lamp house both sides, four deflector rolls (14) (27) are separately positioned on the corner location of lamp house, in order to given adjusting roll film tension force, and cylindrical torsion spring (7) one ends of realizing the reducing compensation automatically are stuck in kink on the axle (8) of reel (9) inner chamber bottom, the other end is stuck on the interior muscle of reel (9), and reel (9) realizes that by torsion spring (7) and axle (8) elasticity is connected.On the black photo-shield strip that roll film edge is processed, have with so that photoelectric sensor carries out optical signal detecting to it so cooperates with control single chip microcomputer (16) realize the picture location, regularly, the printing opacity aperture (18) counted.

2,, it is characterized in that being provided with in order to the reel bearing of reel (9) (10) to be installed according to the described Automatic Cycle advertising lamp box of claim 1.

3,, it is characterized in that reel (9) (10) outside is milled with the narrow groove in order to the trapezoidal leptoprosopy of the clamping roll film that matches with the press strip (11) of trapezoid cross section according to claim 1 or 2 described Automatic Cycle advertising lamp boxs.

4, according to the described Automatic Cycle advertising lamp box of claim 1～3, it is characterized in that mechanical driving device is to form by worm screw (2), worm gear (3), gear (4) (5) (6) and axle, driving gear (5) meshes simultaneously with the follower gear (4) (6) that drives reel (9) (10) action.

5,, it is characterized in that controlling single chip microcomputer (16) and form by Z80CPU, two 1/0 interface (74LSZ44 * 2) EPROM and driver (74LS273) according to the described Automatic Cycle advertising lamp box of claim 1.

6, according to the described Automatic Cycle advertising lamp box of claim 1, it is characterized in that the lamp house both sides are equipped with rhombohedral crystal cotton ginning glass (23), frosted glass (22), in adorn row's fluorescent-lamp tube (24).

7,, it is characterized in that the position being set and being connected and to adopt other modes of reel assemblies, guide roller component and lamp house according to the described Automatic Cycle advertising lamp box of claim 1～6.

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