CN211764101U

CN211764101U - Eccentric wheel flexo printing pressure fine-tuning

Info

Publication number: CN211764101U
Application number: CN201922219559.4U
Authority: CN
Inventors: 张婉琳
Original assignee: Guangzhou Duowell Printinf Machinery Co ltd
Current assignee: Guangzhou Duowell Printinf Machinery Co ltd
Priority date: 2019-12-11
Filing date: 2019-12-11
Publication date: 2020-10-27
Anticipated expiration: 2029-12-11

Abstract

The utility model discloses an eccentric wheel flexography pressure fine-tuning, including two shoulder iron carrier plates that the interval set up, be located version roller on two shoulder iron carrier plates, be located two eccentric wheel devices that another shoulder iron carrier plate one side was kept away from to the shoulder iron carrier plate, be located two adjusting device that the eccentric wheel device kept away from shoulder iron carrier plate one side, adjusting device can drive eccentric wheel device and rotate the position in order to adjust version roller. The utility model discloses a mode that adjusting device promoted eccentric wheel device adjusts the pressure of version roller, has increased the driving force and has rejected and adjust stability in, has improved the pressure fine setting precision of version roller again, has realized the printing of becoming more meticulous of flexographic printing machine.

Description

Eccentric wheel flexo printing pressure fine-tuning

Technical Field

The utility model relates to a printing processing technology field, concretely relates to eccentric wheel flexographic printing pressure fine-tuning.

Background

The flexographic printing machine is a printing device which transfers ink to the image-text part of a printing plate by using fluid ink with stronger fluidity, the ink is transferred to the image-text part of the printing plate by an ink fountain rubber roll and an anilox ink transfer roller and is inked, then printing pressure is exerted by a pressing roller, the ink on the printing plate is transferred to a printing stock, and finally printing is finished through a dry surface. In the prior art, one end of a plate roller is generally controlled by using a screw rod for installation control of the plate roller of the flexographic printing machine, the position movement of the plate roller is adjusted by manually adjusting the screw rod, the pressure and adjustment of the plate roller are controlled by the number of turns of the screw rod, and a thread with too small pitch cannot be generally selected for adjustment due to the fact that enough stress of an adjusting knob is ensured, so that the fine adjustment precision of the position of the plate roller is low, the pressure of the plate roller is difficult to control, and the printing effect is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an eccentric wheel flexography pressure fine-tuning, the increase driving force is rejected and regulation stability, improves the pressure fine-tuning precision of version roller.

To achieve the purpose, the utility model adopts the following technical proposal:

the utility model provides an eccentric wheel flexography pressure fine-tuning, including two shoulder iron carrier plates that the interval set up, be located two version roller on the shoulder iron carrier plate, be located the shoulder iron carrier plate is kept away from another two eccentric wheel device of shoulder iron carrier plate one side, be located eccentric wheel device keeps away from two adjusting device of shoulder iron carrier plate one side, adjusting device can drive eccentric wheel device rotates with the adjustment the position of version roller.

As a preferable scheme of the eccentric wheel flexographic pressure fine adjustment mechanism, the eccentric wheel device comprises an eccentric wheel positioned on one side of the shoulder iron bearing plate far away from the other shoulder iron bearing plate and a positioning pin installed on the eccentric wheel, and the eccentric wheel is in contact with the shoulder iron bearing plate.

As a preferable scheme of the eccentric wheel flexographic pressure fine adjustment mechanism, the adjusting device comprises an adjusting screw seat and an adjusting knob, wherein the adjusting screw seat is located on one side, away from the shoulder iron bearing plate, of the positioning pin, the adjusting knob is installed on one side, away from the positioning pin, of the adjusting screw seat, and the adjusting knob can pass through the adjusting screw seat and be in contact with the positioning pin.

As a preferred scheme of the eccentric wheel flexible printing pressure fine adjustment mechanism, the adjusting knob is an adjusting screw, the adjusting screw base is provided with a threaded through hole, and the adjusting screw can pass through the threaded through hole to be in contact with the positioning pin.

As an optimal scheme of the eccentric wheel flexo printing pressure fine adjustment mechanism, the adjusting device further comprises a pressure spring, and the pressure spring is sleeved on the adjusting screw and is abutted against the adjusting screw seat.

As an optimal scheme of the eccentric wheel flexo printing pressure fine adjustment mechanism, each shoulder iron bearing plate comprises an arc-shaped structure tangent to the outer circle of the plate roller, and the center of the arc-shaped structure is located at the lower end of the shoulder iron bearing plate.

As a preferable scheme of the eccentric wheel flexible printing pressure fine adjustment mechanism, one end of one of the shoulder iron bearing plates, which is far away from the eccentric wheel, is fixed through a first pivot shaft and can rotate relative to the first pivot shaft, and one end of the other shoulder iron bearing plate, which is far away from the eccentric wheel, is fixed through a second pivot shaft and can rotate relative to the second pivot shaft.

As a preferable scheme of the eccentric wheel flexible printing pressure fine adjustment mechanism, the eccentric wheel flexible printing pressure fine adjustment mechanism further comprises an eccentric wheel returning device, wherein the eccentric wheel returning device comprises a fixing rod positioned below the eccentric wheel, a positioning screw arranged on the periphery of the eccentric wheel and a tension spring respectively connected with the fixing rod and the positioning screw.

The utility model has the advantages that:

(1) the utility model adopts the mode that the adjusting knob pushes the positioning pin on the eccentric wheel to adjust the pressure of the printing roller, increases the pushing force rejection and the adjusting stability, simultaneously improves the pressure fine adjustment precision of the printing roller, and realizes the fine printing of the flexographic printing machine;

(2) the utility model discloses still added the eccentric wheel return means, utilized the power of drawing of powerful spring, made the eccentric wheel return effectively, realized eccentric wheel automatic re-setting's purpose.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below. It is obvious that the drawings described below are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be obtained from these drawings without inventive effort.

Fig. 1 is a schematic structural view of an eccentric wheel flexo printing pressure fine-tuning mechanism according to an embodiment of the present invention.

Fig. 2 is a schematic cross-sectional view of an eccentric wheel flexographic pressure fine adjustment mechanism according to an embodiment of the present invention.

In fig. 1 and 2:

1. a shoulder iron bearing plate; 2. a printing roller;

3. an eccentric wheel device; 31. an eccentric wheel; 32. positioning a pin;

4. an adjustment device; 41. adjusting the screw seat; 42. adjusting a knob; 43. a pressure spring;

5. an eccentric wheel return device; 51. fixing the rod; 52. a set screw; 53. a tension spring.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not indicated or implied that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are used only for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms will be understood by those skilled in the art according to the specific circumstances.

In the description of the present invention, unless otherwise explicitly specified or limited, the term "connected" or the like, if appearing to indicate a connection relationship between the components, is to be understood broadly, for example, as being either a fixed connection, a detachable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through one or more other components or may be in an interactive relationship with one another. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 and fig. 2, the eccentric wheel flexographic pressure fine adjustment mechanism in the embodiment of the present invention includes two shoulder iron bearing plates 1 that the interval set up, be located printing roller 2 on two shoulder iron bearing plates 1, be located two eccentric wheel devices 3 that shoulder iron bearing plate 1 kept away from another shoulder iron bearing plate 1 one side, be located eccentric wheel device 3 and keep away from two adjusting device 4 of shoulder iron bearing plate 1 one side, adjusting device 4 can drive eccentric wheel device 3 and rotate in order to adjust the position of printing roller 2.

In the embodiment, the position of the shoulder iron bearing plate 1 is adjusted by adopting the mode that the adjusting device 4 pushes the eccentric wheel device 3, and the printing roller 2 on the shoulder iron bearing plate 1 can move along with the shoulder iron bearing plate, so that the effect of adjusting the pressure of the printing roller 2 is achieved, the driving force rejection and the adjusting stability are increased, meanwhile, the pressure fine adjustment precision of the printing roller 2 is improved, and the fine printing of the flexographic printing machine is realized.

As a preferred embodiment of the present invention, the eccentric wheel device 3 includes an eccentric wheel 31 located on one side of the shoulder iron bearing plate 1 away from the other shoulder iron bearing plate 1 and a positioning pin 32 installed on the eccentric wheel 31, and the eccentric wheel 31 is in contact with the shoulder iron bearing plate 1. Eccentric wheel 31 in this embodiment is circular structure, the round hole has been seted up to the position that the latter half of this circular structure is close to the periphery, the centre of a circle of this round hole does not coincide with the centre of a circle of eccentric wheel 31, eccentric wheel 31 passes the round hole through the fixed axle and fixes, eccentric wheel 31 can rotate for the fixed axle, thereby play skew centre of a circle pivoted effect, dowel pin 32 in this embodiment plays the drive effect simultaneously, adjusting device 4 drives eccentric wheel 31 through dowel pin 32 that promotes on the eccentric wheel 31 and rotates, such structural design can increase and promote moment and regulation stability.

In this embodiment, the adjusting device 4 includes an adjusting screw seat 41 located on a side of the positioning pin 32 away from the shoulder iron support plate 1, and an adjusting knob 42 installed on a side of the adjusting screw seat 41 away from the positioning pin 32, and the adjusting knob 42 can pass through the adjusting screw seat 41 to contact with the positioning pin 32. The adjusting screw seat 41 in this embodiment serves as a fixed support, and the adjusting knob 42 is fixed to the adjusting screw seat 41 and can apply a pushing force to the positioning pin 32 through the adjusting screw seat 41, thereby causing the eccentric 31 to rotate. Specifically, in the present embodiment, through the adjustment of the adjusting device 4, the eccentric amount of the eccentric wheel 31 is determined to be 5mm, the rotation range of the eccentric wheel 31 is ± 5 °, the movement amount of the resulting printing roller 2 is ± 0.4mm, and the adjusting knob 42 can rotate five turns within the whole fine adjustment range, so that the whole fine adjustment precision is greatly improved.

In this embodiment, the adjusting knob 42 is an adjusting screw, and the adjusting screw seat 41 is provided with a threaded through hole through which the adjusting screw can pass to contact the positioning pin 32.

In this embodiment, the adjusting device 4 further includes a compression spring 43, and the compression spring 43 is sleeved on the adjusting screw and abuts against the adjusting screw seat 41. The pressure spring 43 in this embodiment plays a role in fixing, and the adjusting screw is fixed on the adjusting screw seat 41 by rotation, because of the problem of the precision of the threaded through hole, a virtual position is generated between the adjusting screw and the adjusting screw seat 41, so as to affect the fine adjustment precision of the printing roller 2, therefore, the pressure spring 43 is added between the adjusting screw and the adjusting screw seat 41, and when the adjusting screw rotates towards the adjusting screw seat 41, the pressure spring 43 generates elastic force towards both sides, so as to eliminate the virtual position between the adjusting screw and the adjusting screw seat 41.

In this embodiment, each shoulder iron bearing plate 1 includes a segment of arc-shaped structure tangent to the outer circle of the plate roller 2, and the center of the arc-shaped structure is located at the lower end of the shoulder iron bearing plate 1. The shoulder iron bearing plate 1 in the embodiment adopts a double-adjusting plate form, and the adjustment of the plate roller 2, the ink path and the paper surface is separately performed by arranging the two shoulder iron bearing plates 1, so that the adjustment of the distance between the plate roller 2 and the ink path and the paper surface is not interfered with each other.

In this embodiment, one end of one of the shoulder bearing plates 1 away from the eccentric 31 is fixed by a first pivot shaft and can rotate relative to the first pivot shaft, and one end of the other shoulder bearing plate 1 away from the eccentric 31 is fixed by a second pivot shaft and can rotate relative to the second pivot shaft. The shoulder iron bearing plate 1 in this embodiment has a fixed end and a movable end, and the position of the movable end is adjusted by the rotation of the eccentric wheel 31, so that the position of the plate roller 2 on the shoulder iron bearing plate 1 is changed, and the pressure of the plate roller 2 is adjusted.

The eccentric flexo printing pressure fine-tuning mechanism in the embodiment further comprises an eccentric wheel returning device 5, wherein the eccentric wheel returning device 5 comprises a fixing rod 51 positioned below the eccentric wheel 31, a positioning screw 52 arranged on the periphery of the eccentric wheel 31 and a tension spring 53 respectively connected with the fixing rod 51 and the positioning screw 52. In the embodiment, the eccentric wheel returning device 5 is added below the eccentric wheel 31, when the adjusting screw pushes the positioning pin 32 to cause the eccentric wheel 31 to rotate, the tension spring 53 can generate tension, and when the adjusting screw returns to the original position, the eccentric wheel 31 can quickly return through the tension generated by the tension spring 53, so that the purpose of automatically returning the eccentric wheel 31 is realized.

It should be understood that the above-described embodiments are merely illustrative of the preferred embodiments of the present invention and the technical principles thereof. It will be understood by those skilled in the art that various modifications, equivalents, changes, and the like can be made to the present invention. However, these modifications are within the scope of the present invention as long as they do not depart from the spirit of the present invention. In addition, certain terms used in the specification and claims of the present application are not limiting, but are used merely for convenience of description.

Claims

1. The utility model provides an eccentric wheel flexographic pressure fine-tuning, its characterized in that includes two shoulder iron carrier plates (1) that the interval set up, is located two version roller (2) on shoulder iron carrier plate (1), be located another is kept away from in shoulder iron carrier plate (1) two eccentric wheel device (3), the position of shoulder iron carrier plate (1) one side are kept away from eccentric wheel device (3) two adjusting device (4) of shoulder iron carrier plate (1) one side, adjusting device (4) can drive eccentric wheel device (3) rotate with the adjustment the position of version roller (2).

2. The eccentric flexo pressure trimming mechanism according to claim 1, wherein the eccentric means (3) comprises an eccentric (31) on the side of the shoulder iron carrier plate (1) remote from the other shoulder iron carrier plate (1) and a positioning pin (32) mounted on the eccentric (31), the eccentric (31) being in contact with the shoulder iron carrier plate (1).

3. The eccentric flexo-printing pressure fine-tuning mechanism according to claim 2, wherein the adjusting device (4) comprises an adjusting screw seat (41) located on the side of the positioning pin (32) far away from the shoulder iron carrier plate (1) and an adjusting knob (42) installed on the side of the adjusting screw seat (41) far away from the positioning pin (32), and the adjusting knob (42) can pass through the adjusting screw seat (41) to be in contact with the positioning pin (32).

4. The eccentric flexo pressure trimming mechanism according to claim 3, wherein the adjusting knob (42) is an adjusting screw, and the adjusting screw seat (41) is provided with a threaded through hole through which the adjusting screw can pass to contact the positioning pin (32).

5. The eccentric flexo printing pressure fine-tuning mechanism according to claim 4, wherein the adjusting device (4) further comprises a compression spring (43), the compression spring (43) is sleeved on the adjusting screw and is abutted with the adjusting screw seat (41).

6. The eccentric flexo printing pressure fine-tuning mechanism according to claim 2, wherein each shoulder iron bearing plate (1) comprises a segment of arc-shaped structure tangent to the outer circle of the plate roller (2), and the center of the arc-shaped structure is positioned at the lower end of the shoulder iron bearing plate (1).

7. The eccentric flexo-printing pressure fine-tuning mechanism according to claim 6, wherein one end of one of the shoulder iron bearing plates (1) away from the eccentric (31) is fixed by a first pivot shaft and can rotate relative to the first pivot shaft, and the other end of the shoulder iron bearing plate (1) away from the eccentric (31) is fixed by a second pivot shaft and can rotate relative to the second pivot shaft.

8. The eccentric flexo pressure trimming mechanism according to claim 2, further comprising an eccentric wheel returning device (5), wherein the eccentric wheel returning device (5) comprises a fixing rod (51) located below the eccentric wheel (31), a set screw (52) installed on the outer periphery of the eccentric wheel (31), and a tension spring (53) connected to the fixing rod (51) and the set screw (52), respectively.