阅读说明：本技术 链条相位调整机构 (Chain phase adjusting mechanism ) 是由 陈巍 杨建伟 贾欢欢 于 2021-06-21 设计创作，主要内容包括：本发明提供了一种链条相位调整机构,包括两个对称设置的链条涨紧构件,链条涨紧构件的外侧设有导轨和驱动构件,导轨安装在外部设备上,使得链条涨紧构件的涨紧板能在调整构件驱动下沿导轨左右移动,驱动构件信号连接至控制器；每个链条涨紧构件的上、下两端分别设有从动传纸链轮、主动传纸链轮,且三者组成传动结构,两个链条涨紧构件之间安装叼纸牙排和导板。本发明所述的链条相位调整机构,可以用在喷墨数字印刷机幅面调整上,根据幅面调整的差值,通过本机构的调整电机,改变相应的链条相位,使整个数字印刷机闭环纸路相对位置不变,保证纸张传递的准确性。(The invention provides a chain phase adjusting mechanism which comprises two chain tensioning members which are symmetrically arranged, wherein a guide rail and a driving member are arranged on the outer side of each chain tensioning member, the guide rail is arranged on external equipment, so that a tensioning plate of each chain tensioning member can move left and right along the guide rail under the driving of an adjusting member, and the driving member is connected to a controller through signals; the upper end and the lower end of each chain tensioning member are respectively provided with a driven paper conveying chain wheel and a driving paper conveying chain wheel which form a transmission structure, and a paper gripping tooth row and a guide plate are arranged between the two chain tensioning members. The chain phase adjusting mechanism can be used for breadth adjustment of an ink-jet digital printer, and according to a difference value of the breadth adjustment, the corresponding chain phase is changed through the adjusting motor of the mechanism, so that the relative position of a closed loop paper path of the whole digital printer is unchanged, and the accuracy of paper transfer is ensured.)

1. Chain phase adjustment mechanism, its characterized in that: the chain tensioning device comprises two chain tensioning members which are symmetrically arranged, a guide rail and a driving member are arranged on the outer side of each chain tensioning member, the guide rail is arranged on external equipment, so that a tensioning plate of each chain tensioning member can move left and right along the guide rail under the driving of an adjusting member, and the driving member is connected to a controller through signals; the upper end and the lower end of each chain tensioning member are respectively provided with a driven paper conveying chain wheel and a driving paper conveying chain wheel which form a transmission structure, and a paper gripping tooth row and a guide plate are arranged between the two chain tensioning members.

2. The chain phase adjustment mechanism according to claim 1, wherein: one side of the chain tensioning member is provided with a locking limiting member.

3. The chain phase adjustment mechanism according to claim 1, wherein: the driving members are respectively connected to the two chain tensioning members, the guide rail is arranged on the outer side of one chain tensioning member, and the locking limiting member is arranged on the outer side of the other chain tensioning member.

4. The chain phase adjustment mechanism according to claim 1, wherein: the driving member is respectively connected to the two chain tensioning members, and a guide rail and a locking limiting member are arranged on the outer side of any chain tensioning member.

5. The chain phase adjustment mechanism according to claim 1, wherein: two sides of the driven paper conveying chain wheel are respectively provided with a limiting plate.

6. The chain phase adjustment mechanism according to claim 2, 3 or 4, wherein: the locking limiting component comprises a limiting rod, a locking air cylinder and a locking lever, the locking air cylinder is connected to the limiting rod through the locking lever, the limiting rod is used for limiting the tension plate, and the locking air cylinder is in signal connection with the controller.

7. The chain phase adjustment mechanism according to claim 1, wherein: the chain tensioning member comprises a tensioning chain, a tensioning plate, a driven wheel and a driving wheel, the driven wheel, a driving paper conveying chain wheel, the driving wheel and a driven paper conveying chain wheel are sequentially sleeved inside the tensioning chain to form a transmission structure, the driving wheel and the driven wheel are fixedly connected through the tensioning plate, and the lower portion of the tensioning plate is connected with the adjusting member.

8. The chain phase adjustment mechanism according to claim 6, wherein: the tensioning plate is provided with a plurality of limiting holes, each limiting hole is matched with one limiting rod to limit the tensioning plate, and the bottom of the tensioning plate is provided with a connecting piece.

9. The chain phase adjustment mechanism according to claim 8, wherein: the adjusting component comprises a connecting rod and two driving pieces fixedly connected with the connecting rod, each driving piece is matched with one connecting piece to form a transmission structure, one end of the connecting rod is fixedly connected to an adjusting motor, and the adjusting motor is connected to the controller through signals.

10. The chain phase adjustment mechanism according to claim 8, wherein: the matching mode of the driving piece and the connecting piece is gear and rack matching or lead screw and nut matching.

Technical Field

The invention belongs to the field of printing machinery, and particularly relates to a chain phase adjusting mechanism.

Background

Paper preset function of ink-jet digital printing: before the printer changes the paper with different specifications and sizes, the paper to be used is input into the operating system of the printer, and the digital printer automatically adjusts the relevant mechanisms of the platform according to the input data, wherein the relevant mechanisms comprise a paper feeding part, a paper receiving part and a preset mechanism of a turning part. The paper part, the paper delivery part and the offset press are almost the same as the paper presetting mechanism, but the breadth of the existing printing equipment cannot be adjusted, only the fixed-specification printing can be carried out, and no phase adjusting mechanism exists, so that the phase adjusting mechanism is urgently needed to be developed to meet the production requirement.

Disclosure of Invention

In view of the above, the present invention is directed to a chain phase adjustment mechanism to solve the problem that the existing digital printer can only print paper with a fixed specification.

In order to achieve the purpose, the technical scheme of the invention is realized as follows:

a chain phase adjusting mechanism comprises two chain tensioning members which are symmetrically arranged, guide rails and driving members are arranged on the outer sides of the chain tensioning members, the guide rails are mounted on external equipment, so that tensioning plates of the chain tensioning members can move left and right along the guide rails under the driving of an adjusting member, and the driving members are connected to a controller through signals; the upper end and the lower end of each chain tensioning member are respectively provided with a driven paper conveying chain wheel and a driving paper conveying chain wheel which form a transmission structure, and a paper gripping tooth row and a guide plate are arranged between the two chain tensioning members.

Furthermore, one side of the chain tensioning member is provided with a locking limiting member.

Furthermore, the driving members are respectively connected to the two chain tensioning members, a guide rail is arranged on the outer side of one chain tensioning member, and a locking limiting member is arranged on the outer side of the other chain tensioning member.

Furthermore, the driving member is respectively connected to the two chain tensioning members, and a guide rail and a locking limiting member are arranged on the outer side of any chain tensioning member.

Furthermore, two sides of the driven paper conveying chain wheel are respectively provided with a limiting plate.

Further, shutting stop member includes gag lever post, shutting cylinder and shutting lever, and the shutting cylinder is connected to the gag lever post through shutting lever, and the gag lever post is used for spacing to the tight board that rises, and shutting cylinder signal connection to controller.

Furthermore, the chain tensioning member comprises a tensioning chain, a tensioning plate, a driven wheel and a driving wheel, the driven wheel, the driving paper conveying chain wheel, the driving wheel and the driven paper conveying chain wheel are sequentially sleeved inside the tensioning chain to form a transmission structure, the driving wheel and the driven wheel are fixedly connected through the tensioning plate, and the lower part of the tensioning plate is connected with the adjusting member.

Furthermore, a plurality of limiting holes are formed in the tensioning plate, each limiting hole is matched with one limiting rod to limit the tensioning plate, and a connecting piece is arranged at the bottom of the tensioning plate.

Furthermore, the adjusting component comprises a connecting rod and two driving pieces fixedly connected with the connecting rod, each driving piece is matched with one connecting piece to form a transmission structure, one end of the connecting rod is fixedly connected to the adjusting motor, and the adjusting motor is connected to the controller through signals.

Furthermore, the matching mode of the driving piece and the connecting piece is gear and rack matching or lead screw and nut matching.

Compared with the prior art, the chain phase adjusting mechanism has the following advantages:

(1) the chain phase adjusting mechanism can use paper with any format within a specified range.

(2) The chain phase adjusting mechanism can be used for breadth adjustment of an ink-jet digital printer, and according to a difference value of the breadth adjustment, the corresponding chain phase is changed through the adjusting motor of the mechanism, so that the relative position of a closed loop paper path of the whole digital printer is unchanged, and the accuracy of paper transfer is ensured.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic view of a chain phase adjustment mechanism according to an embodiment of the present invention;

FIG. 2 illustrates a positional relationship between a chain tensioning member and an adjustment member according to an embodiment of the present invention;

FIG. 3 illustrates a positional relationship between a chain tensioning member and a locking stop member according to an embodiment of the present invention;

FIG. 4 is an enlarged view taken at A in FIG. 3;

fig. 5 is a layout diagram of the working state of the chain phase adjustment mechanism according to the embodiment of the present invention.

Description of reference numerals:

1-a guide plate; 2-chain tensioning member; 21-tensioning the chain; 22-a tensioning plate; 221-a connector; 222-a limiting hole; 23-a driven wheel; 24-a driving wheel; 3-driven paper transmission chain wheel; 4-gripper bar; 5-a guide rail; 6-an adjustment member; 61-adjusting the motor; 62-a drive member; 7-driving paper transfer chain wheel; 8-a scaffold; 9-a locking stop member; 91-a limiting rod; 92-a lock cylinder; 93-a locking lever; 10-a limiting plate; 11-even times paper transferring roller; 12-a transfer cylinder; 13-turning over the paper transfer roller; 14-a tumbling cylinder; 15-even times of turning over the roller.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

As shown in fig. 1 to 5, the chain phase adjustment mechanism includes two chain tensioning members 2 symmetrically arranged, a guide rail 5 and a driving member 6 are disposed outside the chain tensioning members 2, the guide rail 5 is used for being mounted on an external device, so that a tensioning plate 22 of the chain tensioning members 2 can reciprocate along the guide rail 5 under the driving of the adjustment member 6, and the driving member 6 is in signal connection with a controller; a driven paper conveying chain wheel 3 is arranged above each chain tensioning member 2, a driving paper conveying chain wheel 7 is arranged below each chain tensioning member 2, the driven paper conveying chain wheels, the driving paper conveying chain wheels and the driving paper conveying chain wheels form a transmission structure, and a paper gripping tooth row 4 and a guide plate 1 are arranged between the two chain tensioning members 2.

Preferably, two driven paper conveying chain wheels 3, two driving paper conveying chain wheels 7 and two chain tensioning members 2 which are symmetrical are fixedly connected, so that the consistency of phases on two sides of the chain phase adjusting mechanism is effectively ensured.

One side of the chain tensioning member 2 is provided with a locking limiting member 9 for limiting the position of the chain tensioning member 2, and the locking limiting member 9 is connected to the controller through signals.

In one embodiment, the driving members 6 are respectively connected to the two chain tensioning members 2, the guide rail 5 is arranged on the outer side of one chain tensioning member 2, and the locking limiting member 9 is arranged on the outer side of the other chain tensioning member 2, so that the guide rail 5 is prevented from blocking a limiting part of the locking limiting member 9, the production of the tensioning plate 22 is facilitated, a limiting structure of the tensioning plate 22 is not required to be specially arranged, the guide rail 5 is avoided, and the process and production cost are saved.

In another embodiment, the driving member 6 is respectively connected to the two chain tensioning members 2, and the guide rail 5 and the locking limiting member 9 are arranged outside any one of the chain tensioning members 2, so that the equipment space is saved, and the occupied area is reduced. And the locking limiting component 9 is used for limiting the chain tensioning component 2.

The upper part and the lower part of the chain tensioning member 2 are respectively provided with a bracket 8 for ensuring the stability of the chain tensioning member 2, the driven paper conveying chain wheel 3 and the driving paper conveying chain wheel 7.

Two sides of the driven paper conveying chain wheel 3 are respectively provided with a limiting plate 10 for limiting the adjusting position of the driven paper conveying chain wheel 3 and ensuring that the phase position adjusted by the chain phase adjusting mechanism does not exceed the maximum set value. The limiting plate 10 is installed on the bracket 8.

In one embodiment, the guide plate 1 is arranged between the two brackets 8 which are bilaterally symmetrical, so that the chain phase adjusting mechanism can be conveniently and integrally arranged when the printing machine is assembled, the guide plate 1 does not need to be arranged on external supporting equipment, the assembling difficulty is greatly reduced, and the working efficiency is improved.

As shown in fig. 2, the chain tensioning member 2 includes a tensioning chain 21, a tensioning plate 22, a driven wheel 23 and a driving wheel 24, the tensioning chain 21 is sequentially sleeved outside the driven wheel 23, the driving paper conveying sprocket 7, the driving wheel 24 and the driven paper conveying sprocket 3 to form a transmission structure, the driving wheel 24 and the driven wheel 23 are fixedly connected through the tensioning plate 22, and the lower portion of the tensioning plate 22 is connected with the adjusting member 6.

Preferably, a plurality of limiting holes 222 are formed in the tension plate 22, each limiting hole 222 is matched with one locking limiting member 9 to limit the tension plate 22, and a connecting member 221 is arranged at the bottom of the tension plate 22.

The adjusting member 6 includes adjusting motor 61, driving piece 62 and connecting rod, two driving pieces 62 of fixed connection respectively on the connecting rod, every driving piece 62 forms transmission structure with a connecting piece 221 cooperation, the one end fixed connection of connecting rod to adjusting motor 61, adjusting motor 61 signal connection is to the controller, the staff passes through controller control adjusting motor 61 and rotates, adjusting motor 61 controls driving piece 62 and rack 221 action, and then the removal is controlled to the drive tight board 22 that rises, finally drive the accurate removal of chain tight member 2 that rises, thereby change the phase place of driven biography paper sprocket 3. The adjustment motor 61 is preferably a servomotor.

In one embodiment, the driving member 62 and one of the connecting members 221 are engaged in a gear and rack manner, i.e. the driving member 62 is a gear and the connecting member 221 is a rack. In another embodiment, the driving member 62 and one of the connecting members 221 are engaged by a lead screw and a nut, i.e. the driving member 62 is a lead screw and the connecting member 221 is a nut.

A bracket 8 is arranged above and below the driven wheel 23.

As shown in fig. 3 and 4, the locking and limiting member 9 includes a limiting rod 91, a locking cylinder 92 and a locking lever 93, the locking cylinder 92 is connected to the limiting rod 91 through the locking lever 93, the limiting rod 91 is used for being inserted into the limiting hole 222 to limit the tension plate 22, and the locking cylinder 92 is in signal connection with the controller. The lockout cylinder 92 is mounted on the external support device.

The controller presented in this scheme is the host controller of the user device.

As shown in fig. 5, the chain phase adjustment mechanism operates on the following principle:

the chain phase adjusting mechanism is arranged between the paper conveying part and the overturning part, and the chain phase adjusting mechanism, the paper conveying part and the overturning part are all connected with an external supporting mechanism. The method specifically comprises the following steps: the driven paper transmission chain wheel 3 is positioned below the even-number times paper transmission roller 11 of the paper transmission part and transmits paper to the even-number times paper transmission roller 11, a paper transmission roller 13 is arranged on one side of the even-number times paper transmission roller 11, the driving paper transmission chain wheel 7 is positioned above the turning paper transmission roller 13 in the turning part and can receive turned paper transmitted by the turning paper transmission roller 13, a turning roller 14 and an even-number times turning roller 15 are sequentially arranged on one side of the turning paper transmission roller 13 and are matched for turning the paper; the driving paper transmission chain wheel 7 is connected with the main machine and is not movable, the guide rail 5 and the locking cylinder 92 are both fixedly arranged on the main machine or external supporting equipment,

a worker inputs the breadth parameters of the paper into the controller, the controller controls the adjusting motor 61 to rotate to a set rotation number according to a set program, the adjusting motor 61 drives the tension plate 22 to accurately move to a set position, the tension plate 22 moves, and the tension chain 21 drives the driven paper conveying chain wheel 3 to rotate, so that phase adjustment is completed; after the controller judges that the adjusting motor 61 stops working, the controller controls the locking cylinder 92 to work, and the locking cylinder 92 is installed on the host or an external supporting device, so that the locking cylinder 92 drives the limiting rod 91 to be inserted into one side edge of the limiting hole 222 through the locking lever 93 to lock and limit the tensioning plate 22.

The chain phase adjusting mechanism can be used for adjusting the breadth of the ink-jet digital printing machine, and the corresponding chain phase is changed by the adjusting motor 61 of the mechanism according to the difference value of the breadth adjustment, so that the relative position of the closed-loop paper path of the whole digital printing machine is unchanged, and the accuracy of paper transmission is ensured.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.