CN202964748U

CN202964748U - Lifting mechanism for inlet synchronous belt wheel of three-sided book trimmer

Info

Publication number: CN202964748U
Application number: CN 201220612753
Authority: CN
Inventors: 姚晏; 王春宏
Original assignee: Huainan Ghgs Machinery & Electronics Co ltd
Current assignee: Anhui Huayin Mechanical and Electrical Co Ltd
Priority date: 2012-11-19
Filing date: 2012-11-19
Publication date: 2013-06-05
Anticipated expiration: 2022-11-19

Abstract

The utility model provides a lifting mechanism for an inlet synchronous belt wheel of a three-sided book trimmer and relates to a transmission device for lifting an inlet synchronous belt wheel. The utility model aims to provide the lifting mechanism which can loosen an inlet synchronous belt, so that book sections can be aligned with one another under the effects of a front gauge, a left gauge and a right gauge. The lifting mechanism comprises a cam (2), a roller (3), a rocker arm (4), a pressing spring (5), a connecting rod (7) and a swing block (10), wherein the cam is fixed on a drive gear(1) of the book trimmer; the rocker arm is V-shaped and is fixed on a shell (18) of the book trimmer through a bearing (17); the roller is fixed at the lower end of the rocker arm and is closely attached onto the cam; one end of the pressure spring is fixed nearby the upper end of the rocker arm, and the other end of the pressure spring is fixed on the shell of the book trimmer through a fixed part; the upper end and the lower end of the connecting rod are respectively connected with the swing block and the rocker arm through knuckle bearings; and the other end of the swing block is fixed on a square shaft (11) of the book trimmer.

Description

Three-knife trimming import synchronous pulley lifting mechanism

Technical field

The utility model relates to a kind of mechanical driving device, particularly relates to a kind of transmission device be used to making the lifting of three-knife trimming import synchronous pulley.

Background technology

Three-knife trimming is the device of riding and books being cut in train line, is the important step of this quality of guaranty.When three-knife trimming is worked, signature is carried to three cuttves under the transmission of import Timing Belt, first to keep off snap under the effect of advising at feeding device, the right and left before arriving three cuttves, only have just can meet the demands after cropped through the signature of such processing, namely cutting the size of rear signature and the position of nail pin can both be consistent.And in traditional three-knife trimming, transmit in the process of signature at the import Timing Belt, the import Timing Belt often stretches tight very tightly, and in this case, feeding device, left and right gear rule are difficult to make the signature snap, to such an extent as to the signature that cuts out can not meet the demands.

The utility model content

The technical problems to be solved in the utility model is to provide a kind of import Timing Belt that can make to be loosened, thereby can make the three-knife trimming import synchronous pulley lifting mechanism of signature snap under the effect of feeding device and left and right gear rule.

the utility model three-knife trimming import synchronous pulley lifting mechanism, comprise cam, roller, rocking arm, stage clip, connecting rod, swinging block, described cam is fixedly mounted on a side of ripper driven wheel, the shape of described rocking arm is V-shaped, rocking arm is fastened on the housing of ripper by bearing, described roller is fixed on the lower end of rocking arm, the outer circle wall of roller is adjacent to mutually with the outer circle wall of cam, one end of described stage clip is fixed on the position of close its upper end on rocking arm, the other end of stage clip is fixed on the housing of ripper by fixture, the lower end of described connecting rod is connected with the upper end of rocking arm by the first oscillating bearing, the upper end of connecting rod is connected with an end of swinging block by the second joint bearing, the other end of swinging block is fixed on the square shaft of ripper.

The utility model three-knife trimming import synchronous pulley lifting mechanism, the fixture of wherein said fixedly stage clip one end are one to be fixed on the baffle plate on the ripper housing, and this end of stage clip is bolted on baffle plate.

the utility model three-knife trimming import synchronous pulley lifting mechanism difference from prior art is that the utility model three-knife trimming import synchronous pulley lifting mechanism is transformed into the rotation of cam the swinging of lower end of rocking arm, thereby rocking arm upper end realization is swung up and down, the transmission of the swing of rocking arm by connecting rod is transformed into swinging block and swings up and down, be fixed on due to swinging block on the square shaft of three-knife trimming, so the swing of swinging block can make square shaft rotate, thereby the import synchronous pulley that is fixed on square shaft is moved up and down, when the import synchronous pulley moves up, the import Timing Belt loosens, thereby can make signature snap under the effect of feeding device and left and right gear rule.

The utility model is described in further detail below in conjunction with accompanying drawing.

Description of drawings

Fig. 1 is the front view of the utility model three-knife trimming import synchronous pulley lifting mechanism;

Fig. 2 is the right view of the utility model three-knife trimming import synchronous pulley lifting mechanism;

Fig. 3 is swinging block in the utility model three-knife trimming import synchronous pulley lifting mechanism and the square shaft in three-knife trimming, import synchronous pulley top view;

Fig. 4 is the front view after the utility model three-knife trimming import synchronous pulley lifting mechanism is installed;

Fig. 5 be the swinging block after the utility model three-knife trimming import synchronous pulley lifting mechanism is installed and install after square shaft, import synchronous pulley top view in three-knife trimming.

The specific embodiment

As shown in Figure 1, the utility model three-knife trimming import synchronous pulley lifting mechanism comprises cam 2, roller 3, Rocker arm 4, stage clip 5, connecting rod 7, swinging block 10, in conjunction with Fig. 4 as can be known, described cam 2 is fixedly mounted on a side of ripper driven wheel 1, and three cuttves in described driven wheel 1 driving three-knife trimming move up and down and cut signature.The shape of described Rocker arm 4 is V-shaped, in conjunction with Fig. 2 as can be known; Rocker arm 4 is fastened on the housing 18 of ripper by bearing 17; described roller 3 is fixed on the lower end of Rocker arm 4; the outer circle wall of roller 3 is adjacent to mutually with the outer circle wall of cam 2; end of described stage clip 5 is bolted on the position of close its upper end on Rocker arm 4, and the other end of stage clip 5 is bolted on a baffle plate 6, and baffle plate 6 is bolted on again on the housing 18 of ripper.Like this, under the pressure of stage clip 5, the outer circle wall of the roller 3 of Rocker arm 4 lower end can be close to the outer circle wall of cam 2 all the time.The lower end of described connecting rod 7 is connected with the upper end of Rocker arm 4 by the first oscillating bearing 8, and the upper end of connecting rod 7 is connected with an end of swinging block 10 by second joint bearing 9, and the other end of swinging block 10 is fixed on the square shaft 11 of ripper.Swinging block 10 is fixed on square shaft 11 by first party borehole jack 12, first first party borehole jack 12 is sleeved on square shaft 11, swinging block 10 is fixedly set on first party borehole jack 12 afterwards again.In conjunction with Fig. 3, Fig. 5 as can be known, be fixed with two import synchronous pulleys 13 on described square shaft 11, import synchronous pulley 13 is arranged in a swing arm 15 by a little axle 14, swing arm 15 is fixed on square shaft 11 by second party borehole jack 16 again, first second party borehole jack 16 is sleeved on square shaft 11, again swing arm 15 is fixedly set on second party borehole jack 16 afterwards.The position of described import synchronous pulley 13 on square shaft 11 can be regulated, because after three-knife trimming import synchronous pulley lifting mechanism has been grown service time, too high or too low situation can appear in the height that synchronous pulley 13 is lifted, and so just can eliminate this kind situation by regulating the radial position of synchronous pulley 13 on square shaft 11.

The course of work of the utility model three-knife trimming import synchronous pulley lifting mechanism is as follows, at first adjusts the position of cam 2 on driven wheel 1, and when making roller 3 arrive the peak of cam 2 lifts, three cuttves just rise to the extreme higher position; When roller 3 arrived the minimum point of cam 2 lifts, three cuttves just dropped to extreme lower position.work as like this roller 3 from the process of the minimum point arrival peak of cam 2 lifts, namely this moment, three cuttves moved upward to the extreme higher position by extreme lower position, the lower end of Rocker arm 4 swings to the right, upper end at the effect lower shake-changing arm 4 of bearing 17 upwards swings, connecting rod 7 is moved up, effect bottom motion block 10 at connecting rod 7 upwards swings, because square shaft 11 is fixedly connected with swinging block 10, so square shaft 11 rotates under the drive of swinging block 10, the rotation of square shaft 11 is upwards lifted import synchronous pulley 13, the import Timing Belt is loosened, thereby can make signature snap under the effect of feeding device and left and right gear rule, when roller 3 arrives the process of minimum point from the peak of cam 2 lifts, namely three cuttves moved to from top to bottom extreme lower position and cut the signature of snap, circulation and so forth this moment.

Above-described embodiment is described preferred embodiment of the present utility model; be not that scope of the present utility model is limited; under the prerequisite that does not break away from the utility model design spirit; various distortion and improvement that those of ordinary skills make the technical solution of the utility model all should fall in the definite protection domain of the utility model claims.

Claims

1. three-knife trimming import synchronous pulley lifting mechanism, it is characterized in that: comprise cam (2), roller (3), rocking arm (4), stage clip (5), connecting rod (7), swinging block (10), described cam (2) is fixedly mounted on a side of ripper driven wheel (1), the shape of described rocking arm (4) is V-shaped, rocking arm (4) is fastened on the housing (18) of ripper by bearing (17), described roller (3) is fixed on the lower end of rocking arm (4), the outer circle wall of roller (3) is adjacent to mutually with the outer circle wall of cam (2), one end of described stage clip (5) is fixed on the position of upper close its upper end of rocking arm (4), the other end of stage clip (5) is fixed on the housing (18) of ripper by fixture, the lower end of described connecting rod (7) is connected by the upper end of the first oscillating bearing (8) with rocking arm (4), the upper end of connecting rod (7) is connected by the end of second joint bearing (9) with swinging block (10), the other end of swinging block (10) is fixed on the square shaft (11) of ripper.

2. three-knife trimming import synchronous pulley lifting mechanism according to claim 1, it is characterized in that: the fixture of described fixedly stage clip (5) one ends is one to be fixed on the baffle plate (6) on ripper housing (18), and this end of stage clip (5) is bolted on baffle plate (6).