CN112731769B

CN112731769B - Counterweight alignment method

Info

Publication number: CN112731769B
Application number: CN202011293709.7A
Authority: CN
Inventors: 肖帆; 吴景舟; 马迪
Original assignee: Jiangsu Youdi Electric Co ltd
Current assignee: Jiangsu Youdi Electric Co ltd
Priority date: 2020-11-18
Filing date: 2020-11-18
Publication date: 2023-02-10
Anticipated expiration: 2040-11-18
Also published as: CN112731769A

Abstract

The invention discloses a counterweight alignment method, which comprises the steps of simultaneously pushing two limiting rods positioned on two opposite side surfaces of a roller to the direction close to the roller, inserting the limiting rods into corresponding positions in the roller, rotating the roller for a plurality of circles, and enabling a counterweight block in the roller to move along with the rotation of the roller, move and limit to the limiting rods and be positioned on one side of the limiting rods. According to the invention, the counterweight aligning process is additionally arranged after the equipment is started, so that the counterweights on the left side and the right side of the roller are adjusted to be positioned on the same phase, and the dynamic balance of the roller under high-speed rotation is improved.

Description

Counterweight alignment method

Technical Field

The invention relates to a scheme for adjusting positions of balancing weights, in particular to a balancing weight alignment method for uniformly adjusting phases of the balancing weights on two sides of a roller.

Background

In computer-to-plate devices, the plate is typically scanned point-by-point, line-by-line by means of a scanning system using a light source focused onto the plate, exposing multiple image lines simultaneously with each scan of the plate. The printing plate is typically arranged on a cylindrical cylinder.

The central shaft of the cylindrical drum is rotatably supported so that the cylindrical drum can rotate in the circumferential direction. The printing plate is transferred to the outer circumferential surface of the cylindrical cylinder, and the leading end and the trailing end of the printing plate are held by the leading end chuck and the trailing end chuck, respectively, so that the printing plate is wound around the outer circumferential surface of the cylindrical cylinder.

When the cylindrical drum rotates at a high speed, the apparatus may be severely shaken due to the high-speed rotation of the cylindrical drum when the weights of the front end chuck and the rear end chuck cannot balance the weight of the cylindrical drum. Therefore, a pair of counter weights are provided on both end surfaces of the cylindrical drum, and the weight of the cylindrical drum is balanced by using these counter weight members.

The direct platemaking equipment of current computer is whether the balancing weight is unanimous about no matter when starting up, only confirms the position of both sides balancing weight through unilateral detection (like the right side), and the left side of acquiescence also is in same phase position promptly, can have like this the counter weight back about the balancing weight not the condition on same phase position, lead to high-speed well dynamic balance.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a counterweight alignment method for uniformly adjusting the phases of counterweight blocks on two sides of a roller.

In order to achieve the purpose, the invention provides the following technical scheme: a method of counterweight alignment, the method comprising: two limiting rods positioned on two opposite side surfaces of the roller are pushed out simultaneously in the direction close to the roller and are inserted into corresponding positions in the roller, and the roller is rotated for a plurality of circles, so that the balancing weight in the roller is limited to the limiting rods along with the rotation of the roller and is positioned on one side of the limiting rods.

Preferably, if the position is located at another position in the drum except for the counterweight block, the counterweight block is limited to the limiting rod and located on one side of the limiting rod after the drum is continuously rotated for a plurality of circles.

Preferably, the drum is rotated continuously for more than 2 revolutions.

Preferably, if the position is located on the weight block or in the central hole of the weight block, the method further comprises: after the roller continuously rotates for a plurality of circles, the limiting rod returns towards the direction far away from the side face of the roller, the roller continues to rotate after returning, the position corresponding to the limiting rod is dislocated by rotating the balancing weight, then the limiting rod is pushed back, and after pushing back, the roller continues to rotate so that the balancing weight is limited to the limiting rod.

Preferably, the roller rotates at least one circle from the position where the limiting rod retreats to the position where the balancing weight is limited to the limiting rod.

Preferably, the roller rotates for one circle from the position where the limiting rod retreats to the position where the balancing weight is limited to the limiting rod.

Preferably, after returning the gag lever post to the direction of keeping away from the cylinder side, rotate the cylinder 0.5 circle for the balancing weight rotates the dislocation and opens the position that the gag lever post corresponds, later push back the gag lever post again, continue to rotate the cylinder 0.5 circle after pushing back, make the balancing weight spacing to gag lever post department.

Preferably, the drums are rotated in opposite directions.

Preferably, at least one said counterweight is provided in each side of the drum.

Preferably, two said clump weights are provided in each side of the drum.

The beneficial effects of the invention are:

1. according to the invention, a counterweight alignment process is additionally arranged after the equipment is started, so that the counterweights on the left side and the right side of the roller are adjusted to be positioned on the same phase, and the dynamic balance of the roller under high-speed rotation is improved.

2. The counterweight alignment method reasonably avoids various conditions that the left counterweight block and the right counterweight block are not in one phase, and saves possible manual intervention time.

Drawings

FIG. 1 is a schematic flow diagram of the process of the present invention;

FIG. 2 is a schematic side view of the drum of the present invention;

FIG. 3 is a schematic view of the aligned position of the weight of the present invention.

Reference numerals:

1. drum, 2, gag lever post, 3, balancing weight, 31, first balancing weight, 32, second balancing weight, 33, centre bore, 4, clearance.

Detailed Description

The technical solution of the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention.

The invention discloses a counterweight alignment method, which is characterized in that after a plate making device is started, a counterweight alignment process is executed after the movable clamp alignment is initialized, and the balancing weights on the left side and the right side of a roller are positioned on the same phase through adjustment, so that the dynamic balance of the roller under high-speed rotation is improved.

Referring to fig. 1 to 3, a counterweight alignment method disclosed in the present invention includes the following steps:

s100, two limiting rods 2 which are positioned on two opposite side surfaces of the roller 1 are pushed out simultaneously in the direction close to the roller 1, the limiting rods are inserted into corresponding positions in the roller 1, the roller 1 is rotated for a plurality of circles, and therefore the balancing weight 3 in the roller 1 moves to be limited to the limiting rods 2 along with the rotation of the roller 1 and is positioned on one side of the limiting rods 2.

In this embodiment, two axially opposite side surfaces of the roller 1 are respectively provided with one limiting rod 2, the two limiting rods 2 are symmetrically arranged, and each limiting rod 2 is axially arranged, and in implementation, the limiting rods 2 can be electromagnetic rods. During the adjustment, at first stretch out two gag lever post 2 of cylinder 1 both sides simultaneously to being close to the cylinder 1 side direction that corresponds separately, gag lever post 2 stretches into in the clearance 4 of cylinder 1 side, is provided with at least one balancing weight 3 in this clearance 4, and gag lever post 2 stretches into the relevant position in this clearance 4, according to this position, with cylinder 1 rotatory a plurality of circles, with balancing weight 3 in the clearance 4 spacing to gag lever post 2 department and be located one side of gag lever post 2. In the invention, the position of the limiting rod 2 is fixed after the limiting rod extends out, and the balancing weight 3 in the gap 4 is rotated to the limiting rod 2 by utilizing the rotation of the roller 1 relative to the limiting rod 2.

In practice, the number of the counter weight blocks 3 in the gap 4 on each side of the roller 1 can be one or more than two, and if the number of the counter weight blocks is one, the counter weight system of the roller 1 can only balance the unbalance amount with constant weight, namely can only balance carriers (such as plates) with constant weight. If there are a plurality of counterweights, the counterweight system of the drum 1 can be suitable for balancing different weight carriers, in this embodiment, two counterweights 3 are disposed in the gap 4 on each side of the drum 1, and for convenience of description, they are respectively defined as a first counterweight 31 and a second counterweight 32.

Specifically, if the limiting rod 2 is pushed out and then located in the gap 4 except the counterweight block 3, as shown in fig. 2, i.e. not contacting the counterweight block 3, the drum 1 can be rotated by more than one turn at will, so that the two counterweight blocks 3 are pushed together and limited to the limiting rod 2. In this embodiment, the roller 1 is rotated in two circles, and after the roller is rotated in two circles, the first weight block 31 and the second weight block 32 are stacked together, and the first weight block 31 is limited to the position of the limiting rod 2. Of course, the present invention does not limit the rotation of the drum 1 in the forward or reverse direction and the number of rotation turns of the drum 1, and only needs to rotate and adjust the counterweight 3 to the position of the limiting rod 2, as shown in fig. 3.

If the stop rod 2 is pushed out, the stop rod 2 on any side or the stop rods 2 on both sides are located on the counterweight block 3 or in the central hole 33 of the counterweight block 3, in this case, after the drum 1 rotates for two circles, the position of the counterweight block 3 is different from the position expected to be adjusted by half of the position of the counterweight block 3, so that the adjustment needs to be continued, and after the drum 1 rotates for two circles, the following step S200 is continuously executed.

S200, returning the limiting rod 2 to the direction far away from the side face of the roller 1, continuing to rotate the roller 1 after returning, enabling the balancing weight 3 to rotate and dislocate the position corresponding to the limiting rod 2, then pushing the limiting rod 2 back, and continuing to rotate the roller 1 after pushing back to enable the balancing weight 3 to be limited to the position of the limiting rod 2.

Specifically, return the gag lever post 2 of both sides simultaneously to the direction of keeping away from cylinder 1 side for gag lever post 2 leaves from balancing weight 3, continue to rotate cylinder 1 after returning, make balancing weight 3 rotate the dislocation and open the position that gag lever post 2 corresponds, later push back gag lever post 2 again, at this moment, gag lever post 2 and configuration piece 3 contactless, continue to rotate cylinder 1 after pushing back, rotate balancing weight 3 and drive gag lever post 2 department, final position is as shown in fig. 3. In this step of this embodiment, the roller is continuously rotated for 0.5 turn after the stopper rod 2 is retracted, and the roller is continuously rotated for 0.5 turn after the stopper rod 2 is pushed back. Of course, in other alternative embodiments, the number of turns of the roller 1 after the limiting rod 2 is retracted and pushed back may not be limited, for example, the roller 2 may be continuously reversed for 0.2 turns after the limiting rod 2 is retracted, the roller may be continuously reversed for 0.8 turns after the limiting rod 2 is pushed back, and the like.

Through the steps S100 and S200, the balancing weights 3 at any positions on both sides of the drum 1 are adjusted to the position of the limiting rod 2, so that the phases of the balancing weights 3 on both sides are consistent. Thus, even if the position of the weight 3 is confirmed by single-side detection after the plate making apparatus is started, since the phases of the weights 3 on the left and right sides are adjusted to be consistent, the position of the other weight 3 is also consistent with the position of the weight 3 on the other side, so that the dynamic balance of the drum 1 in high-speed rotation can be improved.

Therefore, the scope of the present invention should not be limited to the disclosure of the embodiments, but includes various alternatives and modifications without departing from the scope of the present invention, which is defined by the claims of the present patent application.

Claims

1. A method of counterweight alignment, the method comprising: two limiting rods positioned on two opposite side surfaces of the roller are simultaneously pushed out towards the direction close to the roller and inserted into corresponding positions in the roller, and the roller is rotated for a plurality of circles, so that a balancing weight in the roller is limited to the limiting rods along with the rotating movement of the roller and is positioned on one side of the limiting rods;

if the position is located on the balancing weight or in a central hole of the balancing weight, after the roller continuously rotates for a plurality of circles, the limiting rod returns towards the direction far away from the side face of the roller, the roller continues to rotate after returning, so that the balancing weight rotates and dislocates the position corresponding to the limiting rod, then the limiting rod is pushed back, and after pushing back, the roller continues to rotate so that the balancing weight is limited to the limiting rod.

2. The method as claimed in claim 1, wherein if the position is located at another position in the drum except the weight block, the weight block is limited to the position of the limiting rod and located at one side of the limiting rod after the drum is continuously rotated for several turns.

3. A counterweight alignment method as claimed in claim 1 wherein said drum is rotated more than 2 consecutive turns.

4. The method as claimed in claim 1, wherein the drum rotates at least one revolution from the position where the stop rod is retracted to the position where the weight is stopped by the stop rod.

5. The method as claimed in claim 4, wherein the roller rotates one turn from the position where the stop rod is retracted to the position where the weight block is stopped to the stop rod.

6. The method as claimed in claim 1, wherein the roller is rotated for 0.5 turn after the stop lever is retracted away from the side of the roller, so that the weight block is rotated to be dislocated from the position corresponding to the stop lever, and then the stop lever is pushed back, and the roller is rotated for 0.5 turn after the stop lever is pushed back, so that the weight block is limited to the stop lever.

7. The method as claimed in any one of claims 1 to 6, wherein the roller rotates in a reverse direction.

8. A method as claimed in claim 1 wherein at least one said counterweight is provided in each side of the drum.

9. A method as claimed in claim 8 wherein two said counterweights are provided in each side of the drum.