Oblique register device of rotary screen printer

Abstract

The utility model discloses an oblique register device of a rotary screen printer, which comprises a mounting frame, a linear guide rail is arranged on the mounting frame, a sliding block connected with a rotary screen is slidably mounted on the linear guide rail, a wire groove is arranged on the sliding block, a motor driving mechanism is further mounted on the mounting frame, and the motor driving mechanism is connected with the linear guide rail. One end of an eccentric shaft is coaxially installed on the output axis of the motor driving mechanism, and the other end of the eccentric shaft extends into the wire groove. According to the oblique register device of the circular screen printer, the use of threaded structures such as a turbine worm, a gear and a screw rod is avoided, the eccentric shaft only needs to stretch into the wire groove in the sliding block, and the whole structure is low in installation precision requirement, convenient to install and low in cost; and under the low installation precision requirement, even if printing dye overflows to the oblique register device of the circular screen printer, the influence on the oblique register device of the circular screen printer is small, and the situations of jamming and corrosion damage are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary screen printing machines, in particular to an oblique alignment device of a rotary screen printing machine. Background Art

[0002] As a screen printing machine, the rotary screen printing machine works in the following way: the fabric is transported along the guide belt under the rotary screen, and the rotary screen continuously rolls on the fabric. During the rolling process of the rotary screen, the slurry in the rotary screen is printed on the fabric through the mesh on the rotary screen to achieve printing. During the printing process, the installation position of the rotary screen is directly related to the printing quality. To ensure the printing quality, a flower alignment device needs to be set so that the position of the rotary screen can be adjusted. The flower alignment of the rotary screen printing machine includes horizontal flower alignment and oblique flower alignment. Among them, oblique flower alignment refers to the flower alignment with oblique deviation of the flower pattern. The specific flower alignment operation is to adjust the diagonal of the rotary screen to make the rotary screen swing and correct the oblique deviation of the flower pattern.

[0003] The oblique alignment device of the existing rotary screen printing machine, as disclosed in the patent document of Chinese patent application No. 201720337275.3, mostly adopts worm gear, gear, or screw drive adjustment. The worm gear, gear, screw and other structures all have threaded structures. The threaded structure not only requires high installation precision, but more importantly, during the rotary screen printing process, the printing dye is easy to overflow onto various structures including the oblique alignment device. The printing dye mostly contains corrosive and adhesive components, which can easily cause the threaded structure to get stuck or even corroded and damaged, thereby making the oblique alignment device less stable. Moreover, the oblique alignment device of the existing rotary screen printing machine is mostly adjusted manually, and intelligent regulation cannot be achieved. Utility Model Content

[0004] The utility model aims at providing an oblique alignment device for a rotary screen printing machine.

[0005] The technical solution to achieve the purpose of the utility model is: an oblique alignment device for a rotary screen printing machine, comprising a mounting frame, a linear guide rail is provided on the mounting frame, the linear guide rail is parallel to the fabric conveying direction, a slider connected to the rotary screen is slidably mounted on the linear guide rail, a wire groove is provided on the slider, the wire groove is non-parallel to the linear guide rail, a motor drive mechanism is also installed on the mounting frame, the output axis of the motor drive mechanism is non-parallel to the linear guide rail, the output axis of the motor drive mechanism is non-parallel to the wire groove, one end of an eccentric shaft is coaxially mounted on the output axis of the motor drive mechanism, the other end of the eccentric shaft extends into the wire groove, and the length of the wire groove is greater than the maximum diameter of the other end of the eccentric shaft.

[0006] Furthermore, the wire groove is perpendicular to the linear guide rail. The wire groove can be perpendicular to the linear guide rail or inclined to the linear guide rail. Preferably, the wire groove is perpendicular to the fabric conveying direction.

[0007] Furthermore, the output axis of the motor drive mechanism is perpendicular to the linear guide rail. The output axis of the motor drive mechanism may be perpendicular to the linear guide rail or may be inclined to the linear guide rail. Preferably, the output axis of the motor drive mechanism is perpendicular to the linear guide rail.

[0008] Furthermore, the output axis of the motor drive mechanism is perpendicular to the wire slot. The output axis of the motor drive mechanism can be perpendicular to the wire slot or can be inclined to the wire slot. Preferably, the output axis of the motor drive mechanism is perpendicular to the wire slot.

[0009] Furthermore, the motor drive mechanism includes a motor and a reducer, and the motor, the reducer and the eccentric shaft are connected in sequence. When working, the motor drives the eccentric shaft after being decelerated by the reducer.

[0010] Furthermore, the output axis of the motor drive mechanism is arranged vertically, which can save more installation space.

[0011] Furthermore, the wire groove is located on the bottom surface of the sliding block.

[0012] Furthermore, the other end of the eccentric shaft includes a shaft end body and a bearing mounted on the shaft end body, and the bearing is located in the wire groove. The arrangement of the bearing can greatly reduce the friction force of the eccentric shaft moving in the wire groove.

[0013] The utility model discloses an oblique alignment device for a rotary screen printing machine, wherein the eccentric shaft is driven by the motor drive mechanism, and at the same time, the eccentric shaft is extended into the wire groove, so that under the limiting action of the wire groove and the linear guide rail, the swing of the eccentric shaft can be decomposed into movement in two directions of the linear guide rail and the wire groove, wherein the structure of the wire groove provides the eccentric shaft with movement space in the direction of the wire groove, but does not provide the eccentric shaft with movement space in the direction of the linear guide rail, and the eccentric shaft and the slider are relatively immovable along the direction of the linear guide rail, so that the eccentric shaft can directly apply a force to the slider, thereby driving the slider and the rotary screen thereon to move along the linear guide rail, thereby realizing the oblique alignment adjustment of the rotary screen.

[0014] The oblique alignment device of the rotary screen printing machine of the utility model converts the rotation of the motor drive mechanism into the linear movement of the slider along the linear guide rail through the eccentric structure of the eccentric shaft, thereby realizing the oblique alignment adjustment of the rotary screen. The structure completely avoids the use of a worm gear, a gear, a screw and the like with a threaded structure. The eccentric shaft only needs to be inserted into the wire groove on the slider. The entire structure has low installation accuracy requirements, is easy to install, and has low cost. Moreover, under the low installation accuracy requirements, even if the printing dye overflows onto the oblique alignment device of the rotary screen printing machine, the impact on the oblique alignment device of the rotary screen printing machine is small, reducing the occurrence of jamming, corrosion damage, and greatly improving the movement stability.

[0015] In addition, the oblique alignment device of the rotary screen printing machine of the utility model adopts the motor drive mechanism to provide power for it, and the motor drive mechanism can provide conditions for intelligent adjustment as an automated power source, thereby greatly improving the adjustment efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of the oblique alignment device of the rotary screen printing machine of the utility model;

[0017] Figure 2 It is a three-dimensional structural schematic diagram of the rotary screen lifting device of the rotary screen printing machine of the utility model without the rotary screen;

[0018] Figure 3 yes Figure 2 Schematic diagram of the cross-sectional structure along line AA;

[0019] Figure 4 yes Figure 3 Schematic diagram of the cross-sectional structure along line BB. DETAILED DESCRIPTION

[0020] The following is a detailed description of the preferred embodiment of the oblique alignment device of the rotary screen printing machine of the utility model in conjunction with the accompanying drawings:

[0021] like Figures 1 to 4As shown, an oblique alignment device of a rotary screen printing machine includes a mounting frame 1, on which a linear guide 11 is provided, the linear guide 11 is parallel to the fabric conveying direction, a slider 2 connected to a rotary screen 10 is slidably mounted on the linear guide 11, a wire groove 21 is provided on the slider 2, the wire groove 21 is non-parallel to the linear guide 11, a motor drive mechanism 3 is also mounted on the mounting frame 1, the output axis of the motor drive mechanism 3 is non-parallel to the linear guide 11, the output axis of the motor drive mechanism 3 is non-parallel to the wire groove 21, one end 41 of an eccentric shaft 4 is coaxially mounted on the output axis of the motor drive mechanism 3, the other end 42 of the eccentric shaft 4 extends into the wire groove 21, and the length L of the wire groove 21 is greater than the maximum diameter D of the other end 42 of the eccentric shaft 4.

[0022] In the oblique alignment device of the rotary screen printing machine of the utility model, the slider 2 is slidably mounted on the linear guide rail 11, and the rotary screen 10 mounted on the slider 2 can move along the linear guide rail 11 with the slider 2. The motor drive mechanism 3 provides power for the movement of the slider 2 along the linear guide rail 11; the eccentric shaft 4 is used to convert rotation into linear motion; and the wire groove 21 on the slider 2 provides rotation conditions for the eccentric shaft 4.

[0023] The utility model discloses an oblique alignment device for a rotary screen printing machine. When aligning, the motor drive mechanism 3 is driven to drive the eccentric shaft 4 to rotate. Due to the eccentricity, one end 41 of the eccentric shaft 4 coaxially installed with the output axis of the motor drive mechanism 3 rotates, and the other end 42 extending into the wire groove 21 swings with the output axis of the motor drive mechanism 3 as the center of the circle. Under the limiting action of the linear guide 11 and the wire groove 21, the swing of the other end 42 of the eccentric shaft 4 is decomposed into movements in two directions of the linear guide 11 and the wire groove 21, wherein the movement in the direction of the wire groove 21 is realized by the other end 42 of the eccentric shaft 4 in the wire groove 21, and the movement in the direction of the linear guide 11 is realized by the movement of the slider 2 along the linear guide 11. In this way, the other end 42 of the eccentric shaft 4 swings, driving the slider 2 and the round screen 10 thereon to move along the linear guide rail 11, thereby adjusting the diagonal of the round screen 10, correcting the oblique deviation of the pattern, and realizing the oblique adjustment of the round screen 10.

[0024] The oblique alignment device of the rotary screen printing machine of the utility model drives the eccentric shaft 4 through the motor drive mechanism 3. At the same time, by extending the eccentric shaft 4 into the wire groove 21, under the limiting action of the wire groove 21 and the linear guide 11, the swing of the eccentric shaft 4 can be decomposed into movement in two directions of the linear guide 11 and the wire groove 21, wherein the structure of the wire groove 21 provides the eccentric shaft 4 with movement space in the direction of the wire groove 21, but does not provide the eccentric shaft 4 with movement space in the direction of the linear guide 11, and the eccentric shaft 4 and the slider 2 cannot move relative to each other along the direction of the linear guide 11, so that the eccentric shaft 4 can directly apply a force to the slider 2, thereby driving the slider 2 and the rotary screen 10 thereon to move along the linear guide 11, thereby realizing the oblique alignment adjustment of the rotary screen 10.

[0025] The oblique alignment device of the rotary screen printing machine of the utility model, through the eccentric structure of the eccentric shaft 4, finally converts the rotation of the motor drive mechanism 3 into the linear movement of the slider 2 along the linear guide rail 11, thereby realizing the oblique alignment adjustment of the rotary screen 10. This structure completely avoids the use of a worm gear, a gear, a screw and the like having a threaded structure, and the eccentric shaft 4 only needs to be inserted into the wire groove 21 on the slider 2. The entire structure has low installation precision requirements, is easy to install, and has low cost; and under low installation precision requirements, even if the printing dye overflows onto the oblique alignment device of the rotary screen printing machine, the impact on the oblique alignment device of the rotary screen printing machine is small, reducing the occurrence of stuck, corroded damage, and greatly improving the movement stability.

[0026] In addition, the oblique alignment device of the rotary screen printing machine of the utility model adopts the motor drive mechanism 3 to provide power for it. The motor drive mechanism 3 can provide conditions for intelligent adjustment as an automated power source, thereby greatly improving the adjustment efficiency.

[0027] In the oblique alignment device of the rotary screen printing machine of the utility model, the wire groove 21 can be perpendicular to the linear guide rail 11 or inclined to the linear guide rail 11 . Preferably, the wire groove 21 is perpendicular to the linear guide rail 11 .

[0028] In the oblique alignment device of the rotary screen printing machine of the present invention, the output axis of the motor drive mechanism 3 can be perpendicular to the linear guide rail 11 or inclined to the linear guide rail 11. Preferably, the output axis of the motor drive mechanism 3 is perpendicular to the linear guide rail 11.

[0029] In the oblique alignment device of the rotary screen printing machine of the present invention, the output axis of the motor drive mechanism 3 can be perpendicular to the wire slot 21 or inclined to the wire slot 21 . Preferably, the output axis of the motor drive mechanism 3 is perpendicular to the wire slot 21 .

[0030] The oblique alignment device of the rotary screen printing machine of the utility model is preferably that the motor drive mechanism 3 includes a motor 31 and a reducer 32, and the motor 31, the reducer 32 and the eccentric shaft 4 are connected in sequence. When working, the motor 31 drives, and after being decelerated by the reducer 32, the eccentric shaft 4 is driven.

[0031] In the oblique alignment device of the rotary screen printing machine of the utility model, preferably, the output axis of the motor drive mechanism 3 is arranged vertically. When arranged vertically, more installation space can be saved.

[0032] In the oblique alignment device of the rotary screen printing machine of the present invention, preferably, the wire groove 21 is located on the bottom surface of the sliding block 2 .

[0033] The oblique alignment device of the rotary screen printing machine of the utility model is preferably that the other end 42 of the eccentric shaft 4 includes an axis end body 421 and a bearing 422 mounted on the axis end body 421, and the bearing 422 is located in the wire groove 21. The arrangement of the bearing 422 can greatly reduce the friction force of the eccentric shaft 4 moving in the wire groove 21.

[0034] For ordinary technicians in the technical field to which the utility model belongs, the utility model can make several simple deductions or substitutions without departing from the concept of the utility model, which should be regarded as falling within the protection scope of the utility model.

Claims

1. An oblique alignment device for a rotary screen printing machine, comprising a mounting frame, characterized in that: A linear guide is provided on the mounting frame, and the linear guide is parallel to the fabric conveying direction. A slider connected to the round net is slidably installed on the linear guide, and a wire groove is provided on the slider, and the wire groove is non-parallel to the linear guide. A motor drive mechanism is also installed on the mounting frame, and the output axis of the motor drive mechanism is non-parallel to the linear guide, and the output axis of the motor drive mechanism is non-parallel to the wire groove. One end of an eccentric shaft is coaxially installed on the output axis of the motor drive mechanism, and the other end of the eccentric shaft extends into the wire groove, and the length of the wire groove is greater than the maximum diameter of the other end of the eccentric shaft.

2. The oblique alignment device of the rotary screen printing machine according to claim 1, characterized in that: The wire groove is perpendicular to the linear guide rail.

3. The oblique alignment device of the rotary screen printing machine according to claim 1, characterized in that: The output axis of the motor drive mechanism is perpendicular to the linear guide rail.

4. The oblique alignment device of the rotary screen printing machine according to claim 1, characterized in that: The output axis of the motor drive mechanism is perpendicular to the wire slot.

5. The oblique registration device of the rotary screen printing machine according to claim 1, characterized in that: The motor drive mechanism comprises a motor and a reducer, and the motor, the reducer and the eccentric shaft are connected in sequence.

6. The oblique alignment device of the rotary screen printing machine according to claim 1, characterized in that: The output axis of the motor drive mechanism is arranged vertically.

7. The oblique alignment device of the rotary screen printing machine according to claim 1, characterized in that: The wire groove is located on the bottom surface of the sliding block.

8. The oblique alignment device of the rotary screen printing machine according to claim 1, characterized in that: The other end of the eccentric shaft comprises a shaft end body and a bearing mounted on the shaft end body, and the bearing is located in the wire groove.

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