Speed-adjustable UV coiled material unwinding mechanism

Abstract

The utility model relates to the technical field of printing processing accessories, in particular to a speed-adjustable UV coiled material unwinding mechanism which comprises an unwinding shaft for UV coiled material processing for printing and a base, and a fixed support and an adjustable support are symmetrically arranged at the two ends of the bottom of the unwinding shaft. According to the utility model, stable support and coaxial rotation of the UV coiled material are realized through the arrangement of the unreeling shaft and the inserting grooves at the two ends of the unreeling shaft and the matching of the first bearings and the inserting heads on the fixed bracket and the adjustable bracket; the speed-adjustable first servo motor installed on the fixing support drives the connecting plug to drive the unwinding shaft to rotate, and therefore the unwinding speed of the UV coiled material is controlled. The adjustable support and the sliding seat at the bottom of the adjustable support are in sliding fit in the movable sliding groove of the base, threaded connection of the adjusting lead screw and the sliding seat is combined, and the second servo motor in the machine box drives the adjusting lead screw to rotate, so that the distance between supporting points at the two ends of the unwinding shaft is adjusted, and then the unwinding requirements of UV coiled materials with different widths are met.

Description

Technical Field

[0001] This utility model relates to the field of printing processing accessories technology, specifically an adjustable speed UV roll unwinding mechanism. Background Technology

[0002] With the continuous development of printing technology, UV roll-to-roll printing, as a highly efficient and environmentally friendly printing method, has been widely used in packaging, advertising, decoration, and other fields. The UV roll-to-roll unwinding mechanism, as a crucial component of UV roll-to-roll printing equipment, directly impacts print quality and production efficiency. Existing unwinding mechanisms are often ill-suited for UV rolls of varying widths. Some mechanisms have fixed support positions that cannot be flexibly adjusted. When changing to different roll sizes, significant time and manpower are required for equipment adjustments or parts replacements, severely impacting production efficiency and increasing production costs. Utility Model Content

[0003] The purpose of this invention is to provide an adjustable speed UV roll unwinding mechanism to solve the problem of poor versatility of existing UV roll unwinding equipment mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] An adjustable speed UV roll unwinding mechanism includes an unwinding shaft for processing UV rolls for printing and a base, wherein fixed supports and adjustable supports are symmetrically arranged at both ends of the bottom of the unwinding shaft.

[0006] Both ends of the unwinding shaft are coaxially provided with insertion slots;

[0007] The fixed bracket and the adjustable bracket are equipped with a first bearing at the same horizontal height. The outer wall of the fixed bracket is equipped with a first servo motor with adjustable speed. The inner ring of the first bearing is coaxially equipped with a plug that is adapted to the cross-sectional size of the plug slot and is plugged in.

[0008] The adjustable bracket is equipped with a sliding seat at its bottom;

[0009] The top surface of the base is provided with a sliding groove that is adapted to and slidably engaged with the cross-sectional dimensions of the sliding seat. An adjusting screw is installed in the sliding groove and is threadedly connected to the sliding seat. A housing is installed at one end of the base, and a second servo motor coaxially connected to the adjusting screw is installed in the housing.

[0010] Preferably, both the slot and the connector have square or equilateral triangular cross-sections.

[0011] Preferably, a support base for fixing the first servo motor is vertically installed on the outer wall of the fixed bracket.

[0012] Preferably, both the sliding seat and the movable slide have isosceles trapezoidal cross sections.

[0013] Preferably, the base is also equipped with a second bearing for fixing the adjusting screw.

[0014] Preferably, the base has symmetrically arranged lifting cylinders at both ends of the bottom, and the top of the piston rod of the lifting cylinder is connected to the bottom of the base.

[0015] Preferably, a fixed chassis is coaxially mounted on the bottom of the lifting cylinder.

[0016] Compared with existing technologies, the beneficial effects of this utility model are:

[0017] 1. In this adjustable speed UV roll unwinding mechanism, the unwinding shaft and its two end slots, in conjunction with the first bearing and connector on the fixed bracket and adjustable bracket, achieve stable support and coaxial rotation of the UV roll. The adjustable speed first servo motor installed on the fixed bracket drives the connector to rotate the unwinding shaft, thereby controlling the unwinding speed of the UV roll. The adjustable bracket and its bottom sliding seat slide in the sliding groove of the base, combined with the threaded connection between the adjusting screw and the sliding seat, and the second servo motor in the machine housing driving the adjusting screw to rotate, realize the adjustment of the distance between the support points at both ends of the unwinding shaft, thereby adapting to the unwinding requirements of UV rolls of different widths.

[0018] 2. In this adjustable speed UV roll unwinding mechanism, the cross-sections of the sliding seat and the moving chute are both isosceles trapezoids, which allows the sliding seat to slide smoothly in the moving chute without easily getting stuck or deviating. The cross-sectional shape of the isosceles trapezoid also gives the sliding seat better guidance and anti-tipping ability during movement.

[0019] 3. In this adjustable speed UV roll unwinding mechanism, there are synchronously operating lifting cylinders symmetrically arranged at both ends of the bottom of the base. The top of the piston rod of the lifting cylinder is connected to the bottom of the base, so that the base can be raised and lowered as needed, making it convenient for users to adjust the height of the unwinding shaft according to actual needs. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are explained in detail together with the embodiments of the present invention, but do not constitute a limitation thereof.

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is an exploded structural diagram of the present invention;

[0023] Figure 3 This is a schematic diagram of the cross-sectional structure of the present invention;

[0024] 10. Unwind the reel; 11. Insert the connector slot;

[0025] 20. Fixed bracket; 21. Support base; 22. First servo motor; 23. First bearing; 24. Connector;

[0026] 30. Adjustable bracket; 31. Sliding base;

[0027] 40. Base; 41. Moving slide; 42. Chassis; 43. Adjusting screw; 44. Second servo motor; 45. Second bearing;

[0028] 50. Lifting cylinder; 51. Piston rod; 52. Fixed chassis. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments and accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] In the description of this utility model, it should be understood that the terms "center", "vertical", "horizontal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of this utility model and to simplify the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] Adjustable speed UV roll unwinding mechanism, such as Figures 1-3As shown, the assembly includes an unwinding shaft 10 and a base 40 for processing UV roll-to-roll materials for printing. The unwinding shaft 10 has a fixed bracket 20 and an adjustable bracket 30 symmetrically arranged at both ends of its bottom. The unwinding shaft 10 has coaxial insertion slots 11 at both ends. A first bearing 23 at the same horizontal height is mounted on the fixed bracket 20 and the adjustable bracket 30. A first servo motor 22 with adjustable speed is mounted on the outer wall of the fixed bracket 20. An insertion connector 24, matching the cross-sectional dimensions of the insertion slot 11, is coaxially mounted in the inner ring of the first bearing 23. A sliding seat 31 is mounted at the bottom of the adjustable bracket 30. A sliding groove 41, matching the cross-sectional dimensions of the sliding seat 31, is opened on the top surface of the base 40. An adjusting screw 43 is installed in the sliding groove 41, and the adjusting screw 43 is threadedly connected to the sliding seat 31. A housing is mounted at one end of the base 40. 42. A second servo motor 44, coaxially connected to the adjusting screw 43, is installed inside the housing 42. Through the unwinding shaft 10 and its two end slots 11, in conjunction with the first bearing 23 and connector 24 on the fixed bracket 20 and the adjustable bracket 30, stable support and coaxial rotation of the UV roll material are achieved. The adjustable-speed first servo motor 22 installed on the fixed bracket 20 drives the connector 24 to rotate the unwinding shaft 10, thereby controlling the unwinding speed of the UV roll material. Through the adjustable bracket 30 and its bottom sliding seat 31, which slides in the moving groove 41 of the base 40, and combined with the threaded connection between the adjusting screw 43 and the sliding seat 31, and the second servo motor 44 inside the housing 42 driving the adjusting screw 43 to rotate, the spacing between the support points at both ends of the unwinding shaft 10 is adjusted, thereby adapting to the unwinding requirements of UV roll materials of different widths.

[0032] It is worth noting that the cross-sections of both the socket 11 and the connector 24 are square or equilateral triangles, which allows the connector 24 to be securely inserted into the socket 11 and not easily loosened or detached.

[0033] Furthermore, a support base 21 for fixing the first servo motor 22 is vertically installed on the outer wall of the fixed bracket 20, so that the first servo motor 22 can be stably installed on the outer wall of the fixed bracket 20.

[0034] The sliding seat 31 and the moving slide 41 are both isosceles trapezoids in cross section, which allows the sliding seat 31 to slide smoothly in the moving slide 41 without easily getting stuck or deviating. The isosceles trapezoidal cross section shape also gives the sliding seat 31 better guidance and anti-tipping ability during movement.

[0035] Specifically, a second bearing 45 for fixing the adjusting screw 43 is also installed on the base 40, so that the adjusting screw 43 can be stably installed on the base 40. The installation of the second bearing 45 also facilitates the threaded connection and adjustment operation between the adjusting screw 43 and the sliding seat 31, thereby improving the adjustment efficiency and reliability of the entire unwinding mechanism.

[0036] In addition, the bottom of the base 40 is symmetrically provided with synchronously operating lifting cylinders 50 at both ends. The top of the piston rod 51 of the lifting cylinder 50 is connected to the bottom of the base 40, so that the base 40 can be raised and lowered as needed, making it convenient for users to adjust the height of the unwinding roller 10 according to actual needs.

[0037] It is worth noting that a fixed chassis 52 is coaxially mounted on the bottom of the lifting cylinder 50, which allows the lifting cylinder 50 to be stably installed on the ground or other fixed platforms.

[0038] The working principle of this adjustable speed UV roll unwinding mechanism:

[0039] First, install the UV roll material onto the unwinding shaft 10, ensuring that one end of the roll material is tightly fitted to the unwinding shaft 10. Then, by adjusting the position of the sliding seat 31 on the adjustable bracket 30 within the moving groove 41, and in conjunction with the second servo motor 44 driving the adjusting screw 43 to rotate, adjust the spacing between the support points at both ends of the unwinding shaft 10 to accommodate UV roll materials of different widths.

[0040] Next, the first servo motor 22 on the fixed bracket 20 is started. It is securely mounted on the support base 21 and drives the connector 24 to rotate coaxially with the unwinding shaft 10, thereby starting the unwinding of the UV roll material. The adjustable speed characteristic of the first servo motor 22 allows users to adjust the unwinding speed according to actual needs.

[0041] During the unwinding process, the user can observe the unwinding of the roll material and adjust the lifting cylinder 50 as needed. The height is adjusted via the piston rod 51 connected to the base 40, ensuring the roll material is unwound smoothly and continuously. The fixed chassis 52 ensures the lifting cylinder 50 is securely installed and provides stable support.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An adjustable speed UV roll unwinding mechanism, comprising an unwinding shaft (10) for processing UV rolls for printing and a base (40), characterized in that: The bottom ends of the unwinding shaft (10) are symmetrically provided with fixed brackets (20) and adjustable brackets (30). The unwinding shaft (10) has insertion slots (11) coaxially formed at both ends. The fixed bracket (20) and the adjustable bracket (30) are equipped with a first bearing (23) at the same horizontal height. The fixed bracket (20) is equipped with a first servo motor (22) with adjustable speed. The inner ring of the first bearing (23) is coaxially equipped with a plug connector (24) that is compatible with the cross-sectional size of the plug slot (11) and is plugged in. The adjustable bracket (30) has a sliding seat (31) installed at its bottom. The top surface of the base (40) is provided with a sliding groove (41) that is adapted to and slidably engaged with the cross-sectional dimensions of the sliding seat (31). An adjusting screw (43) is installed in the sliding groove (41). The adjusting screw (43) is threadedly connected to the sliding seat (31). A housing (42) is installed at one end of the base (40). A second servo motor (44) is installed in the housing (42) and is coaxially connected to the adjusting screw (43).

2. The adjustable speed UV roll unwinding mechanism according to claim 1, characterized in that: The cross-sections of the insertion slot (11) and the insertion connector (24) are both square or equilateral triangles.

3. The adjustable speed UV roll unwinding mechanism according to claim 1, characterized in that: The outer wall of the fixed bracket (20) is vertically mounted with a support base (21) for fixing the first servo motor (22).

4. The adjustable speed UV roll unwinding mechanism according to claim 1, characterized in that: Both the sliding seat (31) and the movable slide (41) have isosceles trapezoidal cross sections.

5. The adjustable speed UV roll unwinding mechanism according to claim 1, characterized in that: The base (40) is also equipped with a second bearing (45) for fixing the adjusting screw (43).

6. The adjustable speed UV roll unwinding mechanism according to claim 1, characterized in that: The base (40) has symmetrically arranged lifting cylinders (50) at both ends of the bottom, and the top of the piston rod (51) of the lifting cylinder (50) is connected to the bottom of the base (40).

7. The adjustable speed UV roll unwinding mechanism according to claim 6, characterized in that: The bottom of the lifting cylinder (50) is coaxially mounted with a fixed chassis (52).

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