CN201240094Y

CN201240094Y - Printer roller platen rotation angle adjusting apparatus

Info

Publication number: CN201240094Y
Application number: CNU2008200682369U
Authority: CN
Inventors: 林孝余; 蔡建平; 孙毅
Original assignee: 林孝余
Current assignee: Zhongtian Printing Machinery Co., Ltd.
Priority date: 2008-07-02
Filing date: 2008-07-02
Publication date: 2009-05-20
Anticipated expiration: 2018-07-02

Abstract

The utility model discloses an impressing roller rotational angle setting device, which comprises an impressing roller shaft (16), an impressing roller cylinder (15), a knob (51) and a screw rod (49). The screw rod (49 ) is installed on the outside wall board (52 ) by a screw thread base (23 ); a bearing (18 ) is installed at the inner end part of the screw rod; the screw rod is connected with the inner end part of the impressing roller shaft (16 ) by the bearing (18 ) and a peripheral internal splined sleeve (17 ) of the bearing; a rectangle screw thread groove ( 53 ) is formed on the inner wall of the impressing roller ( 15 ); a shifting block ( 17 ) is installed in the internal splined sleeve (17 ); and the shifting block is embedded into the rectangle screw thread groove. The impressing roller rotational angle setting device has the advantages that the adjusting method of the impressing roller rotational angle setting is direct and simple, and the journey is short, thereby ensuring that the register precision among the printing rollers is high, the printing quality of the printing product is improved obviously, and the impressing roller rotational angle setting device is applicable to a flexible plate printer particularly.

Description

The roller platen angle adjusting device of printing machine

One, technical field

The utility model relates to a kind of printing machine, specifically relates to a kind of roller platen angle adjusting device of printing machine.

Two, background technology

At present, the roller platen angle adjusting device of printing machine is to utilize manual knob drive screw rod (also can claim turning cylinder) rotation and drive planetary governor motion, and realizes version (roller platen and printing plate cylinder link) along with the drive roller platen makes between the printing plate cylinder.This planetary regulative mode is the transmission of multiple sets of teeth wheel, exists the problem not high to the version precision between adjustment stroke length, the printing plate cylinder, has influenced the printing quality of printed matter.

Three, utility model content

The purpose of this utility model is to overcome above-mentioned deficiency, and the roller platen angle adjusting device to the printing machine of version precision between a kind of printing plate cylinder that can improve on the printing machine is provided.

The purpose of this utility model realizes by following technical solution: a kind of roller platen angle adjusting device of printing machine, comprise impression roll shaft, impression roller, knob, screw rod, described screw rod is contained on the side sheet of this printing machine by threaded block, on the inner end of this screw rod bearing is housed, and screw rod links by the inner spline housing of this bearing and bearing periphery and the inner end of impression roll shaft; The inwall of described impression roller is provided with the rectangular thread groove, on the described inner spline housing shifting block is housed, and this shifting block is embedded in the rectangular thread groove of impression roller.

After adopting the utility model structure,, can drive shifting block and impression roller is done small rotation regulate by the rotation of screw rod, with realize between the printing plate cylinder to the version function.Therefore, the utility model compared with prior art, regulative mode is directly simple and direct, stroke is short, to version precision height, has obviously improved the printing quality of printed matter, is specially adapted to flexographic presses.

Four, description of drawings

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

Fig. 1 is the roller platen angle adjusting device and the mounting structure schematic diagram of the utility model printing machine.

Fig. 2 is the A-A profile of Fig. 1.

Fig. 3 is the B-B sectional stretch-out view of Fig. 1.

Fig. 4 is the C-C cutaway view of Fig. 1.

Five, the specific embodiment

With reference to Fig. 1, Fig. 2, Fig. 3 as can be known, the roller platen angle adjusting device of the utility model printing machine, comprise impression roll shaft 16, impression roller 15, knob 51, screw rod 49, described screw rod 49 is contained on the side sheet 52 of this printing machine by threaded block 23, bearing 18 is housed on the inner end of this screw rod 49, and the inner spline housing 17 of screw rod 49 by this bearing 18 an and bearing periphery end of impression roller (and pass) link with the inner end of impression roll shaft 16 (external splines is arranged on the inner end surface that is about to impress roll shaft 16, this external splines is matched with inner spline housing 17 connect also inner spline housing is free to slide); (near the inner end place of this screw rod 49) is provided with rectangular thread groove 53 (as Fig. 1, shown in Figure 3) on the inwall of described impression roller 15, shifting block 45 (as shown in Figure 1 and Figure 2) is housed on the described inner spline housing 17, and this shifting block 45 is embedded in the rectangular thread groove 53 of impression roller 15.

Wherein, impression roll shaft 16 constitutes roller platen with impression roller 15, is filled with friction material between the two at this, produces damping when making its motion by the adjusting play, and impression roller 15 links by the printing plate cylinder of gear 14 with printing machine; Impression roll shaft 16 is enclosed within the impression roller 15 and the inner end place of close screw rod 49, and the synchronous pulley 5 of the outer end of impression roll shaft 16 and the transmission mechanism of this printing machine links; On the inner end of screw rod 49, the outside of bearing 18 and inboard place be equipped with plug screw 19 and circle gland 48 respectively, thereby make screw rod 49, inner spline housing 17 be combined into the integral body that rotates freely by bearing 18, plug screw 19, circle gland 48; On screw rod 49, threaded block 23 outer ends places is with and is close to nut 50, on the inner of threaded block 23, be with round nut 22 with holes by the place mutually with impression roller 15, is used for fastening screw and threaded block, and as the end support of impression roller.

Screw rod of the present utility model, threaded block etc. are contained on the side sheet 52 of this printing machine, and the impression roll shaft then is contained on the side lining 54 of this printing machine.Its operation principle is: when printing machine was started working, the synchronous pulley 5 of its transmission mechanism drove roller platen (impression roll shaft and impression roller) rotation, drives the printing plate cylinder rotation with this, uses as the printing stock.When failing between the printing plate cylinder to version, unclamp and be close to nut, turning knob makes the screw rod rotation, and makes inner spline housing produce horizontal direction to move.Because the dual restriction of the rectangular thread groove on shifting block 45 and the impression roller 15, (± 30 spend approximately to force impression roller 15 and impression roll shaft 16 to produce relative rotary motion, as shown in Figure 4),, the effect of gear 14 also makes relative rotary motion because thereby making with this impression roller 15 corresponding printing plate cylinders that link, unclamp knob to meeting again when version required, locking is close to nut, thereby realized between the printing plate cylinder on the printing machine to the version purpose.

Claims

1, a kind of roller platen angle adjusting device of printing machine, comprise impression roll shaft (16), impression roller (15), knob (51), screw rod (49), it is characterized in that: described screw rod (49) is contained on the side sheet (52) of this printing machine by threaded block (23), bearing (18) is housed on the inner end of this screw rod (49), and screw rod (49) links by the inner spline housing (17) of this bearing (18) and bearing periphery and the inner end of impression roll shaft (16); The inwall of described impression roller (15) is provided with rectangular thread groove (53), and shifting block (45) is housed on the described inner spline housing (17), and this shifting block (45) is embedded in the rectangular thread groove (53) of impression roller (15).

2, the roller platen angle adjusting device of printing machine as claimed in claim 1, it is characterized in that: go up at described screw rod (49), place, threaded block (23) outer end is with and is close to nut (50), on the inner of described threaded block (23), be with round nut with holes (22) by the place mutually with impression roller (15).

3, the roller platen angle adjusting device of printing machine as claimed in claim 1 or 2 is characterized in that: on the inner end of described screw rod (49), the outside of bearing (18) and inboard place be equipped with plug screw (19) respectively and justify gland (48).