CN202011207U

CN202011207U - Clamp bar clamping device for CTP (computer to plate) roller

Info

Publication number: CN202011207U
Application number: CN2011200912339U
Authority: CN
Inventors: 黄彬
Original assignee: SHANGHAI BASCH PRINTING EQUIPMENT INT'L TRADING CO Ltd
Current assignee: Liaoning leopard Digital Technology Co., Ltd.
Priority date: 2011-03-31
Filing date: 2011-03-31
Publication date: 2011-10-19
Anticipated expiration: 2021-03-31

Abstract

The utility model discloses a clamp bar clamping device for a CTP (computer to plate) roller, which comprises a roller, a clamp bar and a pressure lever arranged at the periphery of the roller and parallel to the axial direction of the roller, wherein the pressure lever penetrates through the clamp bar. The clamp bar clamping device used for the CTP roller further comprises at least one elastic component arranged on the pressure lever, and the clamp bar is movably connected with the pressure lever through the elastic component. Compared with the traditional tension spring clamping-type CTP roller, the clamp bar clamping device has the advantages that a plurality of elastic components are arranged on the pressure lever, a splint can be clamped on the roller through the elastic components, a tension spring clamping structure commonly arranged on two sides of the roller is changed into the tension spring clamping structure arranged at the circumference of the roller, the occupied spaces at two sides of the roller are greatly reduced, and the problem of tight space of the end face of the small-diameter roller is solved.

Description

CTP roller clamp bar clamping device

Technical field

The utility model relates to a kind of clamp bar clamping device, specifically, relates to a kind of CTP roller clamp bar clamping device.

Background technology

The CTP technology is called for short CTP(Computer to Plate, CTP), to be single bundle original laser of being produced by laser instrument split beam system through multiplex optical fiber or complicated high speed rotary optical splits into the superfine laser beam of multi beam for it, every bundle light is pressed the feature modulation such as bright dark of image information in the computer respectively through acousto-optic modulator, make laser beam become controlled light beam.Then, again after the line focus, the little laser of hundreds of bundle directly is mapped to the work of cutting blocks for printing of forme surface.After cutting blocks for printing by scanning, on forme, form the latent image of image.After developing, the image information on the computer screen just reduction is directly printed for offset press on forme.According to Exposure mode classification, CTP equipment can be divided into interior drum-type, drum type and flat three major types at present, and using maximum is interior drum-type and drum type.Interior drum-type is mainly used on the large format plates such as newspaper; Drum type is fit to use the temperature-sensitive plate; The platform-type aluminum substrate that is specially adapted to.The drum type imaging is with the drum of a roller as the support forme, and version is clamped and wrapped on the roller.Because centripetal force can cause the vibration of roller, until resting, so the suitable speed of roller is that the per minute hundreds of changes.When version was rotated in company with roller, laser just was radiated on the version.

As shown in Figure 1, CTP roller slidingtype tail clamp bar and front page folder is to rely on the extension spring on both sides to clamp plate at present, and extension spring 2 is installed in the end face of roller 1.In this case, extension spring certainly will take the space of roller end face, makes the dynamic balancing adjustment member near the roller axle, and is particularly unfavorable for the dynamic balancing adjustment of pony roll.

Summary of the invention

Technical problem to be solved in the utility model is to provide a kind of CTP roller clamp bar clamping device at above-mentioned defective, be parallel on the axial depression bar in the roller periphery torsion spring is set, replace existing extension spring to clamp plate in the end face setting of roller both sides, save the space of roller end face, make the dynamic balancing adjustment member can be more near the roller axle.

For achieving the above object, the utility model provides a kind of CTP roller clamp bar clamping device, comprise roller, plate holder, be positioned at described roller periphery and the axial depression bar of parallel and described roller, described depression bar is through described plate holder, described CTP roller comprises also that with the clamp bar clamping device at least one is positioned at the elastomeric element on the described depression bar, and described plate holder is movably connected by described elastomeric element and described depression bar.

Above-mentioned CTP roller clamp bar clamping device, described elastomeric element is a torsion spring.

Above-mentioned CTP roller clamp bar clamping device, described plate holder is at least two, evenly is serially connected with on the described depression bar, each described plate holder all is movably connected in described depression bar by at least one described elastomeric element.

Above-mentioned CTP roller plate holder clamping device, 4 described plate holders of serial connection on the described depression bar.

Above-mentioned CTP roller plate holder clamping device, each described plate holder is movably connected in described depression bar by two torsion springs.

Compare with existing extension spring clamped-in style CTP roller, the utility model CTP roller is provided with a plurality of elastomeric elements with the clamp bar clamping device on depression bar, clamping plate can be clamped on the roller by these elastomeric elements, usually the extension spring clamping structure that is arranged at the roller both sides is changed into the torsion spring clamping structure that is arranged at roller circumference place, greatly reduce the space hold of roller both sides, solved the nervous problem in space of pony roll end face.

Description of drawings

By the description of its exemplary embodiment being carried out below in conjunction with accompanying drawing, the above-mentioned feature and advantage of the utility model will become apparent and understand easily.

Fig. 1 is the CTP roller schematic diagram that existing employing extension spring clamps plate;

Fig. 2 is that the utility model adopts torsion spring to clamp the CTP roller end view of plate;

Fig. 3 is the vertical view that employing torsion spring shown in Figure 2 clamps the CTP roller of plate.

The reference numeral explanation:

The 1-roller, the 2-extension spring, 3-depression bar bracing frame,

The 4-torsion spring, 5-plate holder, 6-depression bar.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is described in further detail.

Please refer to Fig. 2 and Fig. 3, Fig. 2 adopts torsion spring to clamp the CTP roller end view of plate, and Fig. 3 is the vertical view that employing torsion spring shown in Figure 2 clamps the CTP roller of plate.The CTP roller comprises roller 1, plate holder 5, is positioned at the axial depression bar 6 of roller 1 periphery and parallel and roller 1 with the clamp bar clamping device, the two ends of depression bar 6 are separately fixed on the depression bar bracing frame 3 at roller 1 two ends, and depression bar 6 is through plate holder 5, this CTP roller comprises also that with the clamp bar clamping device at least one is positioned at the elastomeric element on the depression bar 6, and plate holder 5 is movably connected by this elastomeric element and depression bar 6.

Above-mentioned elastomeric element is preferably torsion spring 4.Torsion spring is to rely on its torsional elasticity to produce the spring of frictional force with transferring power or motion.The difference that torsion spring points to according to pin, torsion spring can be divided into kinds such as axial pin, tangential pin, outer ray pin, injection stitch.In the utility model,, preferably use axial pin torsion spring according to the position relation of depression bar 6 and plate holder 5.

Can be connected in series a plurality of plate holders 5 on the depression bar 6, the number of serial connection plate holder 5 can be according to the model of roller 1 and size and different, need a plurality of plate holders 5 for the roller 1 of length, as 6 to 8; For short 1 number that can reduce plate holder of roller, use 2 or 3 plate holders 5 to get final product.These plate holders 5 are serially connected on the depression bar 6 equably, and each plate holder 5 all is movably connected in depression bar 6 by at least one described elastomeric element.

In preferred embodiment of the present utility model, as shown in Figure 3,4 plate holders 5 of serial connection on the depression bar 6.Each plate holder 5 is movably connected in depression bar 6 by two torsion springs 4.During adjustment of the printing plate, roller 1 rotates, and by the fixing plate holder 5 of an external component, makes plate holder 5 leave roller 1 surface, torsion spring 4 storage elasticity potential energy; When the plate on the needs clamping roller 1, unclamp the said external parts, plate holder 5 clamps roller under the effect of the elastic potential energy of torsion spring 4 storages, fixedly the plate on the roller 1.

This CTP roller is provided with a plurality of elastomeric elements with the clamp bar clamping device on depression bar, clamping plate can be clamped on the roller by these elastomeric elements, usually the extension spring clamping structure that is arranged at the roller both sides is changed into the torsion spring clamping structure that is arranged at roller circumference place, greatly reduce the space hold of roller both sides, solved the nervous problem in space of pony roll end face.

Above content is to further describing that the utility model is done in conjunction with concrete embodiment; can not assert that the specific embodiment of the present utility model only limits to this; under above-mentioned guidance of the present utility model; those skilled in the art can carry out various improvement and distortion on the basis of the foregoing description, and these improvement or distortion drop in the protection domain of the present utility model.

Claims

1. a CTP roller clamp bar clamping device comprises roller, plate holder, is positioned at described roller periphery and the axial depression bar of parallel and described roller, and described depression bar is characterized in that through described plate holder:

Described CTP roller comprises also that with the clamp bar clamping device at least one is positioned at the elastomeric element on the described depression bar, and described plate holder is movably connected by described elastomeric element and described depression bar.

2. CTP roller clamp bar clamping device according to claim 1 is characterized in that:

Described elastomeric element is a torsion spring.

3. CTP roller clamp bar clamping device according to claim 1 is characterized in that:

Described plate holder is at least two, evenly is serially connected with on the described depression bar, and each described plate holder all is movably connected in described depression bar by at least one described elastomeric element.

4. CTP roller clamp bar clamping device according to claim 3 is characterized in that:

4 described plate holders of serial connection on the described depression bar.

5. according to claim 2 or 4 described CTP roller clamp bar clamping devices, it is characterized in that:

Each described plate holder is movably connected in described depression bar by two torsion springs.