Feeding and unwinding device of multicolor printing machine

Abstract

The utility model relates to the technical field of multicolor printing, in particular to a feeding and unwinding device of a multicolor printing machine. According to the feeding and unwinding device of the multicolor printing machine, material rolls can be conveniently installed and rapidly replaced, operation is easy, manpower and time are saved, and use is convenient and fast. A feeding and unwinding device of a multicolor printing machine comprises a dustproof shell, first supporting frames and the like, and the rear portion of the dustproof shell is connected with the left first supporting frame and the right first supporting frame. The material roll lifting arm rotates to drive the material roll to lift upwards, the limiting block moves upwards, the material roll moves to the front middle portion of the dustproof shell, the first spring restores, the limiting block is driven to move and reset, then the transmission shaft is in butt joint with the material roll, and the purposes that the material roll can be conveniently installed and rapidly replaced are achieved. The operation is simple, the labor and time are saved, and the use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of multi-color printing, in particular to a loading and unwinding device for a multi-color printing machine. Background Art

[0002] The loading and unwinding device of a multi-color printing press is a device specially used to unwind the roll material from the reel and feed it into the multi-color printing press for printing. This device is very important in the printing industry because it directly affects the efficiency and quality of the printing process.

[0003] The existing loading and unwinding device of a multi-color printing machine usually involves manually lifting the material roll to the unwinding device, and then installing and fixing the material roll by tightening nuts. However, since manually lifting the material roll consumes manpower and the operation of fixing it by tightening nuts is relatively cumbersome, it is inconvenient to quickly install and replace the material roll, which is relatively inconvenient.

[0004] Therefore, it is necessary to design a multi-color printing machine loading and unloading device that is convenient for installing the material roll, facilitating quick replacement of the material roll, simple to operate, saving manpower and time, and easy to use. Utility Model Content

[0005] In order to overcome the shortcomings of the existing loading and unwinding device of a multi-color printing machine, which is labor-intensive to lift the material roll manually, and is cumbersome to fix by tightening nuts, and is inconvenient to quickly install and replace the material roll, the utility model provides a loading and unwinding device for a multi-color printing machine, which is convenient for installing the material roll, facilitating quick replacement of the material roll, is simple to operate, saves manpower and time, and is easy to use.

[0006] The technical implementation scheme of the utility model is: a loading and unwinding device of a multi-color printing press, including a dustproof shell, a first support frame, a first motor, a synchronous shaft, a material roll lifting arm, a second support frame, a second motor, a buckle, a transmission shaft, a limit assembly and a clamping assembly. The rear part of the dustproof shell is connected to the left and right first support frames, the upper right side of the first support frame on the right side is connected to the first motor, the first motor output shaft is connected to the synchronous shaft, the synchronous shaft is rotatably connected to the first support frame on the left, the left and right parts of the synchronous shaft are connected to the material roll lifting arm, the right front of the dustproof shell is connected to the second support frame, the upper right side of the second support frame is connected to the second motor, a buckle is slidably clamped on the output shaft of the second motor, and the transmission shaft is clamped on the buckle. Limiting assemblies are provided on the left and right parts of the dustproof shell, and a clamping assembly is provided on the front upper part of the dustproof shell.

[0007] Furthermore, the front parts of the material roll lifting arms are each provided with an arc groove.

[0008] Furthermore, the transmission shaft is in the shape of a hexagon.

[0009] Furthermore, the limiting assembly includes a limiting block and a first spring. The left and right parts of the dustproof shell are both slidably connected to the limiting blocks. The first spring is connected between the limiting blocks and the dustproof shell.

[0010] Furthermore, the limiting blocks are all wedge-shaped.

[0011] Furthermore, the clamping assembly includes a telescopic frame, a second spring and an extrusion shaft. The telescopic frame is slidably connected to the upper front part of the dustproof shell. The left and right parts of the telescopic frame are connected to the dustproof shell with a second spring, and the extrusion shaft is rotatably connected to the telescopic frame.

[0012] The utility model has the following advantages: the utility model drives the material roll to be lifted and rotated by the material roll lifting arm, thereby driving the material roll to be lifted upward, causing the limit block to move upward, causing the material roll to move to the front middle of the dustproof shell, the first spring to restore, driving the limit block to move and reset, and then the transmission shaft and the material roll are connected, which achieves the effect of being able to easily install the material roll, facilitating quick replacement of the material roll, simple operation, saving manpower and time, and convenient use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0014] Figure 2 It is a partial cross-sectional structural schematic diagram of the present utility model.

[0015] In the above drawings: 1: dustproof housing, 2: first support frame, 3: first motor, 4: synchronization shaft, 5: material roll lifting arm, 6: second support frame, 7: second motor, 8: buckle, 9: transmission shaft, 10: limit block, 11: first spring, 12: telescopic frame, 13: second spring, 14: extrusion shaft. DETAILED DESCRIPTION

[0016] Reference herein to an embodiment means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present invention. The appearance of such a phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0017] A loading and unwinding device for a multi-color printing machine, such as Figure 1 and Figure 2As shown, it includes a dustproof shell 1, a first support frame 2, a first motor 3, a synchronous shaft 4, a material roll lifting arm 5, a second support frame 6, a second motor 7, a buckle 8, a transmission shaft 9, a limit assembly and a clamping assembly. The rear part of the dustproof shell 1 is connected to the left and right first support frames 2, and the upper right side of the first support frame 2 on the right side is connected to the first motor 3. The synchronous shaft 4 is connected to the output shaft of the first motor 3, and the synchronous shaft 4 is rotatably connected to the first support frame 2 on the left. The left and right parts of the synchronous shaft 4 are both connected to the material roll lifting arm 5, and the front part of the material roll lifting arm 5 is provided with an arc groove for convenient placement of the material roll. The right front of the dustproof shell 1 is connected to the second support frame 6, and the upper right side of the second support frame 6 is connected to the second motor 7. A buckle 8 is slidably clamped on the output shaft of the second motor 7, and a transmission shaft 9 is clamped on the buckle 8. The transmission shaft 9 is hexagonal for easy clamping. Limiting assemblies are provided on the left and right parts of the dustproof shell 1, and a clamping assembly is provided on the front upper part of the dustproof shell 1.

[0018] like Figure 1 As shown, the limit assembly includes a limit block 10 and a first spring 11. The left and right parts of the dustproof shell 1 are both slidably connected to the limit blocks 10. The limit blocks 10 are both wedge-shaped, and the first spring 11 is connected between the limit blocks 10 and the dustproof shell 1.

[0019] like Figure 1 As shown, the clamping assembly includes a telescopic frame 12, a second spring 13 and an extrusion shaft 14. The telescopic frame 12 is slidably connected to the upper front part of the dustproof shell 1. The second spring 13 is connected between the left and right parts of the telescopic frame 12 and the dustproof shell 1. The extrusion shaft 14 is rotatably connected to the telescopic frame 12.

[0020] When using this device, first place the dustproof shell 1 in the loading and unloading area of ​​the multi-color printing machine, support it through the first support frame 2 and the second support frame 6, then place the material roll between the arc grooves of the material roll lifting arm 5, and then start the first motor 3 to drive the synchronous shaft 4 to rotate, so that the material roll lifting arm 5 rotates, driving the material roll to lift upward so that the material roll contacts the limit block 10. The limit blocks 10 are all wedge-shaped. The limit block 10 is squeezed by the material roll upward, so that the limit block 10 moves upward, and the first spring 11 is squeezed and contracted, so that the material roll moves to the front middle part of the dustproof shell 1, so that the material roll no longer squeezes the limit block 10. The first spring 11 recovers, driving the limit block 10 to move and reset, and the material roll is limited by the limit block 10, and then The drive shaft 9 is docked with the material roll, and then the drive shaft 9 is passed through the buckle 8, and then the buckle 8 is moved to the left so that the buckle 8 is engaged with the drive shaft 9, so that the material roll can be installed conveniently and the material roll can be quickly replaced. The operation is simple, saves manpower and time, and is easy to use. After the installation is completed, the extrusion shaft 14 is moved upward to drive the telescopic frame 12 to move upward. The second spring 13 is squeezed and contracted, and then the rolled material is moved to the bottom of the extrusion shaft 14. Then the extrusion shaft 14 is released, and the second spring 13 is restored, driving the telescopic frame 12 to move downward so that the extrusion shaft 14 contacts the material roll and presses the material roll. Then, the second motor 7 on the second support frame 6 is started to drive the buckle 8, the drive shaft 9 and the material roll to rotate for loading and unwinding.

[0021] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A loading and unwinding device for a multi-color printing press, characterized in that: The invention comprises a dustproof shell (1), a first support frame (2), a first motor (3), a synchronous shaft (4), a roll lifting arm (5), a second support frame (6), a second motor (7), a buckle (8), a transmission shaft (9), a limit assembly and a pressing assembly. The rear part of the dustproof shell (1) is connected to the left and right first support frames (2), the right side of the upper part of the right first support frame (2) is connected to the first motor (3), the output shaft of the first motor (3) is connected to the synchronous shaft (4), and the synchronous shaft (4 ) is rotatably connected to the first support frame (2) on the left side, the left and right parts of the synchronization shaft (4) are both connected to the material roll lifting arm (5), the right front part of the dustproof shell (1) is connected to the second support frame (6), the upper right side of the second support frame (6) is connected to the second motor (7), the output shaft of the second motor (7) is slidably connected with a buckle (8), and the buckle (8) is connected to a transmission shaft (9), the left and right parts of the dustproof shell (1) are both provided with a limit assembly, and the front upper part of the dustproof shell (1) is provided with a pressing assembly.

2. A loading and unwinding device for a multi-color printing press according to claim 1, characterized in that: The front part of the material roll lifting arm (5) is provided with an arc groove.

3. A loading and unwinding device for a multi-color printing press according to claim 1, characterized in that: The transmission shaft (9) is in the shape of a hexagon.

4. A loading and unwinding device for a multi-color printing press according to claim 1, characterized in that: The limiting assembly comprises a limiting block (10) and a first spring (11); the left and right parts of the dustproof housing (1) are both slidably connected to the limiting block (10); and the first spring (11) is connected between the limiting block (10) and the dustproof housing (1).

5. A loading and unwinding device for a multi-color printing press according to claim 4, characterized in that: The limiting blocks (10) are all wedge-shaped.

6. A loading and unwinding device for a multi-color printing press according to claim 1, characterized in that: The pressing assembly includes a telescopic frame (12), a second spring (13) and an extrusion shaft (14); the front upper portion of the dustproof housing (1) is slidably connected to the telescopic frame (12); the left and right portions of the telescopic frame (12) are both connected to the dustproof housing (1) with the second spring (13); and the telescopic frame (12) is rotatably connected to the extrusion shaft (14).

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