A corona roller gap fine adjustment mechanism

Abstract

This utility model relates to a fine-tuning mechanism for the gap of a corona pressure roller, comprising: a fine-tuning mechanism and two upright plates; each of the two upright plates has a guide groove on one side; the fine-tuning mechanism includes a movable block disposed inside the guide groove and a camshaft disposed between the two upright plates, with a corona pressure roller disposed between the two movable blocks, the corona pressure roller being located above the camshaft, and a motor with an output shaft connected to the camshaft disposed on one side of each upright plate. This utility model, by configuring components such as upright plates, a camshaft, a corona pressure roller, a motor, and movable blocks, and through the cooperation between the movable blocks and the upright plates, allows the corona pressure roller to move vertically along the direction of the guide groove under the action of the movable blocks. When the motor drives the camshaft to rotate, the camshaft pushes the corona pressure roller upward; conversely, the movable blocks can move downward under the action of gravity, thereby adjusting the size of the gap between the corona pressure roller and the corona roller.

Description

Technical Field

[0001] This utility model relates to the field of corona machine technology, specifically to a corona pressure roller gap fine adjustment mechanism. Background Technology

[0002] A corona treatment machine (also known as a corona treatment machine or corona discharge treatment equipment) is an industrial device that uses the principle of corona discharge to modify the surface of materials. It is mainly used to improve the surface activity of materials and enhance the adhesion of subsequent printing, coating, bonding and other processes.

[0003] The corona machine mainly consists of metal electrodes, corona rollers, and corona pressure rollers arranged from top to bottom. The film passes through the gap between the corona rollers and the corona pressure rollers. In order to make the gap between the corona rollers and the corona pressure rollers adjustable, common adjustment structures include adjusting screws, cylinders, and hydraulic cylinders. However, all of the above common adjustment methods have shortcomings.

[0004] like Figure 7 As shown, the adjusting screws are located above both ends of the corona roller. By rotating the adjusting screws, the corona rollers are pushed downwards, thereby adjusting the gap between the corona rollers. This method is simple in structure and low in cost, but it requires rotating two adjusting screws at the same time. It is difficult to ensure that the downward feed of the two adjusting screws is the same, resulting in a situation where the gap between the corona rollers is smaller at one end and larger at the other end, that is, the gap size is uneven.

[0005] While cylinders have the disadvantages of poor rigidity and susceptibility to air pressure fluctuations and temperature changes, hydraulic cylinders have the advantages of high rigidity and strong load capacity, but they also have the disadvantages of high cost and complex system.

[0006] Therefore, a corona roller gap fine-tuning mechanism is proposed to solve the above-mentioned problems. Utility Model Content

[0007] Based on the above description, this utility model provides a corona roller gap fine adjustment mechanism to solve the problems of inconvenient adjustment, poor reliability and high cost of existing corona roller and corona roller gap adjustment mechanisms.

[0008] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: a corona roller gap fine adjustment mechanism, comprising: a fine adjustment mechanism and two vertical plates;

[0009] Guide grooves are provided on opposite sides of both of the two upright plates;

[0010] The fine-tuning mechanism includes a movable block disposed inside the guide groove and a camshaft disposed between the two vertical plates. A corona pressure roller is disposed between the two movable blocks and is located above the camshaft. A motor with an output shaft connected to the camshaft is disposed on one side of the vertical plate.

[0011] Based on the above technical solution, the present invention can be further improved as follows.

[0012] Furthermore, the upright plate includes two half-plates, each half-plate having a guide groove on one side opposite to the other and a limiting groove on the opposite side. The guide groove and the limiting groove are interconnected, and the length of the guide groove is less than the length of the limiting groove. The two guide grooves and the two limiting grooves cooperate to form a limiting vertical hole. A semi-protrusion is provided on the top wall inside the guide groove, and the two semi-protrusions form a cylinder.

[0013] Furthermore, a connecting crossbar, a metal electrode, and a corona roller are provided between the two upright plates. At least three connecting crossbars are provided. The two upright plates are connected to each other by screws and connecting crossbars. The metal electrode is located above the corona roller.

[0014] Furthermore, the moving block includes a main block body, which is disposed inside the guide groove, and both sides of the main block body are provided with limiting side plates extending into the limiting groove. The length of the main block body is greater than the length of the limiting groove.

[0015] Furthermore, the top of the main block is provided with a cylindrical protrusion located below the cylinder, and mounting holes are provided on opposite sides of the two main blocks. A return spring with its other end sleeved on the outside of the cylindrical protrusion is provided on the outside of the cylinder.

[0016] Furthermore, the corona roller includes a roller body, which is disposed between the two moving blocks, and both ends of the roller body are provided with connecting shafts extending into the mounting holes, and the connecting shafts are fitted with bearings located inside the mounting holes.

[0017] Furthermore, an I-beam wheel is provided on the outside of the connecting shaft via a bearing.

[0018] Furthermore, the camshaft includes a main shaft disposed between the two vertical plates, and a cam is sleeved on the outside of the main shaft, the cam being in contact with the circumferential surface of the I-beam wheel shaft.

[0019] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0020] 1. This utility model sets up components such as a vertical plate, a camshaft, a corona roller, a motor, and a moving block. Through the cooperation between the moving block and the vertical plate, the corona roller can move vertically along the direction of the guide groove under the action of the moving block. When the motor drives the camshaft to rotate, the cam pushes the corona roller to move upward. Conversely, the moving block can move downward under the action of gravity, thereby achieving the effect of adjusting the gap between the corona roller and the corona roller.

[0021] 2. By setting the I-beam wheel, the wear between the cam and the corona roller is reduced, so that when the corona roller rotates, the corona roller and the cam are indirectly in contact. That is, the I-beam wheel generates relative movement with the corona roller under the action of the bearing, avoiding the situation where the cam and the corona roller are severely worn due to direct friction. Attached Figure Description

[0022] Figure 1 A schematic diagram of the structure of a corona roller gap fine-tuning mechanism provided in this embodiment of the present invention;

[0023] Figure 2 for Figure 1 Another structural diagram from another perspective;

[0024] Figure 3 for Figure 1 Structural sectional view;

[0025] Figure 4 This is a schematic diagram of the structure of the upright plate in an embodiment of this utility model;

[0026] Figure 5 This is a schematic diagram of the camshaft structure in an embodiment of the present invention;

[0027] Figure 6 This is a schematic diagram of the structure of the moving block in an embodiment of the present invention;

[0028] Figure 7 This is a schematic diagram of the screw adjustment mechanism in the prior art;

[0029] The attached diagram lists the components represented by each number as follows:

[0030] 1. Vertical plate; 11. Half plate; 12. Semi-protrusion; 13. Guide groove; 14. Limiting groove; 2. Connecting crossbar; 3. Metal electrode; 4. Corona roller; 5. Corona pressure roller; 51. Roller body; 52. Connecting shaft; 6. I-beam wheel; 7. Camshaft; 71. Main shaft; 72. Cam; 8. Motor; 9. Return spring; 10. Moving block; 101. Main block; 102. Limiting side plate; 103. Mounting hole; 104. Cylindrical protrusion. Detailed Implementation

[0031] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0033] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” or “having,” etc., specify the presence of the stated feature, whole, step, operation, component, part, or combination thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.

[0034] Please see Figures 1-3 A corona roller gap fine adjustment mechanism includes: a fine adjustment mechanism and two vertical plates 1;

[0035] A connecting crossbar 2, a metal electrode 3, and a corona roller 4 are provided between the two upright plates 1. At least three connecting crossbars 2 are provided. The two upright plates 1 are connected to each other by screws and connecting crossbars 2. The metal electrode 3 is located above the corona roller 4.

[0036] Based on the above, the two upright plates 1 are connected to each other by connecting crossbars 2 and screws. The metal electrode 3 and the corona roller 4 are existing technologies, so their specific structures are not described here, only their positions are described.

[0037] like Figure 3 and Figure 4 As shown, each of the two upright plates 1 has a guide groove 13 on one side opposite to the other. The upright plate 1 includes two half-plates 11. Each of the two half-plates 11 has a guide groove 13 on one side opposite to the other, and a limiting groove 14 on the opposite side. The guide groove 13 and the limiting groove 14 are interconnected, and the length of the guide groove 13 is less than the length of the limiting groove 14. The two guide grooves 13 and the two limiting grooves 14 cooperate to form a limiting vertical hole. A semi-protrusion 12 is provided on the top wall inside the guide groove 13. The two semi-protrusions 12 form a cylinder.

[0038] Based on the above, the upright plate 1 and the connecting crossbar 2 are connected to form a complete support. The limiting groove 14 and the guide groove 13 cooperate to restrict the moving block 10, so that the moving block 10 can only move vertically along the direction of the guide groove 13. In addition, the cylindrical setting can limit the reset spring 9 and prevent the reset spring 9 from shifting position.

[0039] like Figure 6 As shown, the fine-tuning mechanism includes a moving block 10 disposed inside the guide groove 13 and a camshaft 7 disposed between the two vertical plates 1. A corona pressure roller 5 is disposed between the two moving blocks 10. The corona pressure roller 5 is located above the camshaft 7. A motor 8 with an output shaft connected to the camshaft 7 is disposed on one side of the vertical plate 1. A servo motor of model LKS210-21 is preferred.

[0040] The movable block 10 includes a main block 101, which is disposed inside the guide groove 13. Both sides of the main block 101 are provided with limiting side plates 102 extending into the limiting groove 14. The length of the main block 101 is greater than the length of the limiting groove 14. The top of the main block 101 is provided with a cylindrical protrusion 104 located below the cylinder. Both main blocks 101 are provided with mounting holes 103 on opposite sides. The cylindrical protrusion 104 is sleeved with a return spring 9 with the other end sleeved outside the cylinder.

[0041] Based on the above, the setting of the movable block 10 enables the corona roller 5 to move vertically along the direction of the guide groove 13, and the setting of the mounting hole 103 enables the corona roller 5 to be connected to the movable block 10 through the bearing. The setting of the cylindrical protrusion 104 cooperates with the cylinder to prevent the return spring 9 from shifting position. The return spring 9 provides downward pressure, making the movable block 10 return downward more smoothly.

[0042] like Figure 3 As shown, the corona roller 5 includes a roller body 51, which is disposed between the two moving blocks 10. Both ends of the roller body 51 are provided with connecting shafts 52 extending into the mounting holes 103. The connecting shafts 52 are sleeved with bearings located inside the mounting holes 103. The connecting shafts 52 are provided with I-beam wheels 6 through the bearings.

[0043] like Figure 3 and Figure 5 As shown, the camshaft 7 includes a main shaft 71 disposed between the two vertical plates 1, and a cam 72 is sleeved on the outside of the main shaft 71. The cam 72 is in contact with the circumferential surface of the axle of the I-beam wheel 6.

[0044] Based on the above, after the corona roller 5 is connected to the moving block 10 through the bearing, the corona roller 5 rotates more smoothly. The camshaft 7 and the motor 8 cooperate with each other, and the motor 8 drives the camshaft 7 to rotate, thereby achieving the effect of rotating the cam 72. At this time, the corona roller 5 moves upward under the push of the cam 72, and with the cooperation of the return spring 9, the corona roller 5 can always be in contact with the surface of the cam 72, thereby achieving the effect of the corona roller 5 moving downward.

[0045] The I-beam wheel 6 is designed so that the corona roller 5 and the cam 72 are in indirect contact. Since the I-beam wheel 6 and the connecting shaft 52 are connected by a bearing, the cam 72 and the I-beam wheel 6 are relatively stationary when the corona roller 5 rotates. This avoids the situation where the cam 72 and the corona roller 5 directly contact each other and rotate relative to each other, resulting in faster wear.

[0046] In summary, this fine-tuning mechanism adjusts the distance between the corona roller 5 and the corona roller 4 via the camshaft 7, relative to... Figure 7 The screw adjustment method shown is more complex in structure, but the adjustment amount at both ends of the corona roller 5 is consistent, and the gap will not be inconsistent after adjustment.

[0047] Furthermore, it has stronger rigidity and higher reliability compared to pneumatic cylinders, and simpler structure and lower cost compared to hydraulic cylinders.

[0048] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A corona pressure roller gap fine adjustment mechanism characterized by, include: Fine-tuning mechanism and two uprights (1); Guide grooves (13) are provided on the opposite side of both upright plates (1); The fine-tuning mechanism includes a moving block (10) disposed inside the guide groove (13) and a camshaft (7) disposed between the two vertical plates (1). A corona pressure roller (5) is disposed between the two moving blocks (10). The corona pressure roller (5) is located above the camshaft (7). A motor (8) with an output shaft connected to the camshaft (7) is disposed on one side of the vertical plate (1).

2. The corona press roller gap fine adjustment mechanism according to claim 1, characterized in that The upright plate (1) includes two half-plates (11). Each half-plate (11) has a guide groove (13) on one side opposite to the other and a limiting groove (14) on the opposite side. The guide groove (13) and the limiting groove (14) are interconnected. The length of the guide groove (13) is less than the length of the limiting groove (14). The two guide grooves (13) and the two limiting grooves (14) cooperate to form a limiting vertical hole. A semi-protrusion (12) is provided on the top wall inside the guide groove (13). The two semi-protrusions (12) form a cylinder.

3. The corona press roller gap fine adjustment mechanism according to claim 2, characterized in that A connecting crossbar (2), a metal electrode (3) and a corona roller (4) are provided between the two upright plates (1). At least three connecting crossbars (2) are provided. The two upright plates (1) are connected to each other by screws and connecting crossbars (2). The metal electrode (3) is located above the corona roller (4).

4. The corona roller gap fine-tuning mechanism according to claim 2, characterized in that, The moving block (10) includes a main block (101), which is located inside the guide groove (13). Both sides of the main block (101) are provided with limiting side plates (102) extending into the limiting groove (14). The length of the main block (101) is greater than the length of the limiting groove (14).

5. The corona press roller gap fine adjustment mechanism according to claim 4, characterized in that The top of the main block (101) is provided with a cylindrical protrusion (104) located below the cylinder. The two main blocks (101) are provided with mounting holes (103) on opposite sides. The cylindrical protrusion (104) is fitted with a return spring (9) with the other end fitted outside the cylinder.

6. The corona press roller gap fine adjustment mechanism according to claim 5, characterized in that The corona roller (5) includes a roller body (51), which is disposed between the two moving blocks (10). Both ends of the roller body (51) are provided with connecting shafts (52) extending into the mounting hole (103). The connecting shafts (52) are fitted with bearings located inside the mounting hole (103).

7. The corona press roller gap trimming mechanism of claim 6, wherein, The connecting shaft (52) is provided with an I-beam wheel (6) via a bearing on its exterior.

8. The corona press roller gap trimming mechanism of claim 7, wherein, The camshaft (7) includes a main shaft (71) disposed between the two vertical plates (1), and a cam (72) is sleeved on the outside of the main shaft (71), and the cam (72) is in contact with the circumferential surface of the wheel axle of the I-beam wheel (6).

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