Upper roller structure for photogravure press

Abstract

The utility model discloses an upper roller structure for a photogravure press, which comprises a machine body, a winding roller is arranged in the machine body, an upper roller structure is arranged above the winding roller, a printing roller is arranged in front of the upper roller structure, the upper roller structure comprises a swing frame, a driving component and an upper roller component, and the driving component is in transmission connection with the upper roller component through the swing frame. According to the upper roller structure for the gravure printing machine, a printing roller can be placed in the containing groove firstly, after the printing roller on the machine body is taken down, the printing roller to be installed can be moved to a designated position at the same time, rapid installation is carried out, the installation efficiency is improved, and the practicability is high. And the swinging angle of the swinging frame and the position of the groove in the supporting piece are controlled by the driving assembly, and the whole structure is controlled by a mechanical structure, so that the mounting precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of printing machines, in particular to an upper roller structure used for a gravure printing machine. Background Art

[0002] The existing gravure printing machine has a printing roller, a winding roller, a tension roller, etc. inside, and the printing roller will be replaced according to different printing requirements. The conventional replacement method is that the staff directly disassembles the printing roller and then directly installs the printing roller to be installed. This installation method will cause the following problems. The first is that during installation, the printing roller is lifted to the specified height by a forklift or other equipment. However, due to problems such as the printing roller shaking and the forklift not moving into place, the staff needs to check, which is not only inefficient, but also prone to errors and improper installation; the second is that the disassembly and installation are carried out sequentially, which affects the efficiency of the installation.

[0003] In summary, an upper roller structure for a gravure printing machine is designed. Utility Model Content

[0004] In order to overcome the above-mentioned shortcomings, the utility model provides an upper roller structure for a gravure printing machine.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] An upper roller structure for a gravure printing machine comprises a machine body, a winding roller is arranged inside the machine body, an upper roller structure is arranged above the winding roller, and a printing roller is arranged in front of the upper roller structure;

[0007] The upper roller structure comprises a swing frame, a driving assembly and an upper roller assembly, the driving assembly is transmission-connected to the upper roller assembly through the swing frame, the swing frame is square, a corner of the swing frame is provided with a notch, and the notch faces upward, the five positions on the swing frame from one end of the notch to the other end of the notch are respectively called the front end of the swing frame, the first right angle of the swing frame, the second right angle of the swing frame, the third right angle of the swing frame and the rear end of the swing frame, the front end of the swing frame is hinged to the driving assembly, the first right angle of the swing frame is fixedly connected to the upper roller assembly, a pin is provided at the second right angle of the swing frame, the swing frame is connected to the fuselage through the pin, a first tension roller is provided at the third right angle of the swing frame, and a second tension roller is provided at the rear end of the swing frame.

[0008] The upper roller assembly includes a fixing part, a supporting part and a bolt. The fixing part is provided with a slot, the swing frame is embedded in the slot, the bolt fixes the fixing part on the swing frame, the supporting part is fixed to one end of the fixing part, and the upper end surface of the supporting part is provided with a placement groove.

[0009] Preferably, the fuselage is also provided with an auxiliary pressure assembly, which includes a support, two slides, a third tension roller, a screw and a turntable. The turntable is connected to the support through a screw, the screw is horizontally arranged, the support slides between the two slides, the third tension roller is arranged on the support, and the third tension roller is located above the second tension roller. When the staff rotates the turntable, the turntable can be threadedly transmitted with the support through the screw, so that the support slides between the two slides, thereby controlling the position of the third tension roller on the support.

[0010] Preferably, the driving assembly includes a fixed seat, a cylinder and a piston rod. The cylinder is vertically arranged, the upper end of the cylinder is hinged to the fixed seat, the cylinder is hinged to the front end of the swing frame through the piston rod, the cylinder works under the action of an external oil pump, the cylinder can control the swing of the swing frame through the piston rod, and the cylinder will realize angle changes on the fixed seat to match the swing trajectory of the swing frame, thereby ensuring that the printing rod is accurately moved to the specified position.

[0011] Preferably, a base is provided at the bottom of the fuselage, and water is provided inside the base, which can ensure the weight of the base while reducing the cost of the base.

[0012] Preferably, a sensor is provided at the front end of the winding roller, and the sensor detects the thickness of the printing material on the winding roller.

[0013] The beneficial effects of the utility model are as follows: in the upper roller structure used for the gravure printing machine, the printing roller can be placed in the placement groove first, and after the printing roller on the machine body is removed, the printing roller to be installed can be moved to a designated position at the same time for rapid installation, thereby improving the installation efficiency; the swing angle of the swing frame and the position of the placement groove on the support are all controlled by the driving component, the entire structure is controlled by the mechanical structure, and the installation accuracy is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be described by way of examples with reference to the accompanying drawings, in which:

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the swing frame of the utility model;

[0017] Figure 3 It is a structural schematic diagram of the upper roller assembly of the utility model;

[0018] Figure 4 It is a structural schematic diagram of the auxiliary pressure component of the utility model. DETAILED DESCRIPTION

[0019] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0020] like Figure 1-Figure 4 As shown, an upper roller structure for a gravure printing machine comprises a machine body 1, a winding roller 3 is arranged inside the machine body 1, an upper roller structure is arranged above the winding roller 3, and a printing roller 4 is arranged in front of the upper roller structure;

[0021] The upper roller structure includes a swing frame 5, a driving assembly and an upper roller assembly. The driving assembly is connected to the upper roller assembly through the swing frame 5. The swing frame 5 is square. A notch is opened at one corner of the swing frame 5, and the notch faces upward. The five positions on the swing frame 5 from one end of the notch to the other end of the notch are called the front end 9 of the swing frame, the first right angle of the swing frame, the second right angle of the swing frame, the third right angle of the swing frame and the rear end of the swing frame. The front end 9 of the swing frame is hinged with the driving assembly. The first right angle of the swing frame is fixedly connected to the upper roller assembly. A pin 6 is provided at the second right angle of the swing frame. The swing frame 5 is connected to the fuselage 1 through the pin 6. The third right angle of the swing frame is provided with a first tension roller 7, and the rear end of the swing frame is provided with a second tension roller 8. The upper roller assembly includes a fixing member 12, a supporting member 10 and a bolt 11. The fixing member 12 is provided with a slot, and the swing frame 5 is embedded in the slot. The bolt 11 fixes the fixing member 12 to the swing frame 5. The supporting member 10 is fixed at one end of the fixing member 12. The upper end surface of the supporting member 10 is provided with a placement groove.

[0022] The working principle of the upper roller structure for the gravure printing machine is that the driving component is connected to the front end of the swing frame 5 by transmission, and the swing frame 5 is controlled by telescopic and the second right-angle pin 6 of the swing frame, and then the position of the fixing member 12 is adjusted to realize the upper roller action. Before the structure works, the printing roller 4 can be placed in the placement groove first, and after the printing roller 4 on the machine body 1 is removed, the printing roller 4 to be installed can be moved to the designated position at the same time for rapid installation, which greatly improves the installation efficiency, and the swing angle of the swing frame 5 and the position of the placement groove on the support member 10 are all controlled by the driving component, and the entire structure is controlled by the mechanical structure, which improves the installation accuracy.

[0023] Specifically, the fuselage 1 is also provided with an auxiliary pressure assembly, which includes a support 17, two slides 19, a third tension roller 18, a screw 20 and a turntable 21. The turntable 21 is connected to the support 17 through the screw 20. The screw 20 is horizontally arranged. The support 17 slides between the two slides 19. The third tension roller 18 is arranged on the support 17. The third tension roller 18 is located above the second tension roller 8. The staff rotates the turntable 21, and the turntable 21 can be threadedly transmitted with the support 17 through the screw 20, so that the support 17 slides between the two slides 19, thereby controlling the position of the third tension roller 18 on the support 17.

[0024] Specifically, the driving assembly includes a fixed seat 15, a cylinder 14 and a piston rod 16. The cylinder 14 is vertically arranged, and the upper end of the cylinder 14 is hinged to the fixed seat 15. The cylinder 14 is hinged to the front end of the swing frame 5 through the piston rod 16. The cylinder 14 works under the action of an external oil pump. The cylinder 14 can control the swing frame 5 to swing through the piston rod 16. At the same time, the cylinder 14 will realize an angle change on the fixed seat 15 to match the swing trajectory of the swing frame 5, thereby ensuring that the printing rod is accurately moved to the specified position.

[0025] Specifically, a base 2 is provided at the bottom of the fuselage 1 , and water is provided inside the base 2 , so that the weight of the base 2 can be ensured while reducing the cost of the base 2 .

[0026] Specifically, a sensor 13 is provided at the front end of the winding roller 3 , and the sensor 13 detects the thickness of the printing material on the winding roller 3 .

[0027] The above is based on the disclosure of the utility model. Through the above description, relevant staff can make various changes and modifications without deviating from the technical concept of the utility model. The technical scope of the utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An upper roller structure for a gravure printing machine, characterized in that: It comprises a machine body, a winding roller is arranged inside the machine body, an upper roller structure is arranged above the winding roller, and a printing roller is arranged in front of the upper roller structure; The upper roller structure comprises a swing frame, a driving assembly and an upper roller assembly, the driving assembly is connected to the upper roller assembly through the swing frame, the swing frame is square, a notch is opened at one corner of the swing frame, and the notch faces upward, and the five positions on the swing frame from one end of the notch to the other end of the notch are sequentially called the front end of the swing frame, the first right angle of the swing frame, the second right angle of the swing frame, the third right angle of the swing frame and the rear end of the swing frame, the front end of the swing frame is hinged to the driving assembly, the first right angle of the swing frame is fixedly connected to the upper roller assembly, a pin is provided at the second right angle of the swing frame, the swing frame is connected to the fuselage through the pin, a first tension roller is provided at the third right angle of the swing frame, and a second tension roller is provided at the rear end of the swing frame; The upper roller assembly includes a fixing part, a supporting part and a bolt. The fixing part is provided with a slot, the swing frame is embedded in the slot, the bolt fixes the fixing part on the swing frame, the supporting part is fixed to one end of the fixing part, and the upper end surface of the supporting part is provided with a placement groove.

2. The upper roller structure for a gravure printing machine according to claim 1, characterized in that: The fuselage is also provided with an auxiliary pressure assembly, which includes a support, two slides, a third tension roller, a lead screw and a turntable. The turntable is connected to the support through a lead screw, the lead screw is arranged horizontally, the support slides between the two slides, the third tension roller is arranged on the support, and the third tension roller is located above the second tension roller.

3. The upper roller structure for a gravure printing machine according to claim 1, characterized in that: The driving assembly comprises a fixing seat, a cylinder and a piston rod. The cylinder is arranged vertically, the upper end of the cylinder is hinged to the fixing seat, and the cylinder is hinged to the front end of the swing frame through the piston rod.

4. The upper roller structure for a gravure printing machine according to claim 1, characterized in that: A base is arranged at the bottom of the fuselage, and water is arranged inside the base.

5. The upper roller structure for a gravure printing machine according to claim 1, characterized in that: A sensor is provided at the front end of the winding roller.

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