Coating mechanism of laser precision coating machine

Abstract

The utility model discloses a coating mechanism of a laser precision coating machine, which comprises a workbench and a portal frame, a lifting mechanism is arranged on the portal frame, a compression roller frame, a compression roller, a coating roller and a coating storage tank are arranged in the portal frame, and a coating roller positioning frame is arranged in a rectangular notch in the front end face of a front vertical support. A first linear guide rail is arranged at the lower end of the coating roller positioning frame; a first linear driver drives the coating roller positioning frame to move back and forth through a first push rod; a second linear driver is arranged at the left end of the first linear driver and drives the first linear driver to move left and right through a second push rod. A third linear guide rail is fixedly arranged on the lower end face of the transverse support, a plurality of laser aligners are arranged on the third linear guide rail, and a far infrared radiation heating plate is fixedly arranged on the lower end face of the pressing roller frame. According to the technical scheme, the structural design is reasonable, the coating roller is convenient to replace and operate, a base material and the coating roller are easy to align, the working efficiency can be improved, and practicability is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of coating machine, concretely relates to a laser precision coating machine coating mechanism. BACKGROUND

[0002] The coating machine is mainly used for the surface coating process production of film, paper and the like, the machine is used for coating a layer of pigment, ink and the like coating material with specified function on the base material in roll, and after drying, cutting into pieces or winding, it adopts the special multifunctional coating head, can realize the surface coating production of multiple forms, the coating machine's winding and unwinding are all configured with full-speed automatic film connecting mechanism, PLC program tension closed loop automatic control.

[0003] The coating mechanism of the existing coating machine is inconvenient to replace the coating roller due to unreasonable structure design, and the base material cannot be accurately aligned with the coating roller during use, which is inconvenient to use; moreover, the existing coating mechanism generally does not have heating or drying function, which leads to slow drying of the base material coated with coating material such as glue and ink, resulting in low work efficiency and poor practicality; based on this, the utility model designs a laser precision coating machine coating mechanism to solve the above problems. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a laser precision coating machine coating mechanism which is reasonable in structure design, convenient to replace the coating roller, easy to align the base material with the coating roller, can improve work efficiency and is good in practicality.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a laser precision coating machine coating mechanism, comprising a workbench and a gantry, a lifting mechanism is arranged on the gantry, a pressure roller holder, a pressure roller, a coating roller and a coating material storage tank are arranged in the gantry, the gantry comprises a front vertical support, a rear vertical support and a horizontal support, the lower end of the front vertical support is fixedly connected with the front end of the upper end face of the workbench, the lower end of the rear vertical support is fixedly connected with the rear end of the upper end face of the workbench, the coating material storage tank is arranged between the front vertical support and the rear vertical support, the coating roller is installed above the coating material storage tank, a driving motor is arranged at the rear end of the coating roller, and the coating roller is driven to rotate by the driving motor; a rectangular notch is arranged on the front end face of the front vertical support in alignment with the position of the coating roller, a coating roller positioning frame is arranged in the rectangular notch, a first linear guide rail is arranged at the lower end of the coating roller positioning frame, a first linear driver is arranged at the front end of the coating roller positioning frame, a first push rod is arranged at the rear end of the first linear driver, and the coating roller positioning frame is driven to move forward and backward along the first linear guide rail by the first linear driver through the first push rod; a second linear guide rail is arranged at the lower end of the first linear driver, a second linear driver is arranged at the left end of the first linear driver, a second push rod is arranged at the right end of the second linear driver, and the first linear driver is driven to move left and right along the second linear guide rail by the second linear driver through the second push rod.

[0006] The lower end surface of the transverse support is fixedly provided with a third linear guide rail, and a plurality of laser alignment instruments are arranged on the third linear guide rail, and the laser emission end of the laser alignment instrument is arranged downward;

[0007] The heating cavity is arranged between the compression roller and the lower end surface of the compression roller frame, and a far-infrared radiation heating plate is fixedly arranged on the lower end surface of the compression roller frame, and the far-infrared radiation direction of the far-infrared radiation heating plate is arranged downward.

[0008] The utility model further sets up: the front end of coating roller is provided with front limiting baffle, and the front limiting baffle is integrally arranged or is fixed through screw connection with the front end of coating roller, and the rear end of coating roller is provided with rear limiting baffle, and the rear limiting baffle is integrally arranged or is fixed through screw connection with the rear end of coating roller.

[0009] The utility model further sets up: a pivot is provided in the middle part of coating roller, and the pivot is sequentially provided with first smooth part, first external thread connecting part, second smooth part, second external thread connecting part and third smooth part from front to back, the first smooth part is provided with first shaft hole in the position of alignment of coating roller positioning frame, bearing is fixedly arranged in the first shaft hole, and the front end of first smooth part is arranged in the inner hole of bearing, the first external thread connecting part is provided with first locating nut, the second external thread connecting part is provided with second locating nut, and the third smooth part is provided with coupling between the motor shaft of driving motor.

[0010] The utility model further sets up: the upper inner wall surface of rectangular gap is provided with guide chute, and the upper end surface of coating roller positioning frame is integrally provided with positioning lug in the position of alignment of guide chute.

[0011] The utility model further sets up: the front end of transverse support is fixedly connected with the upper end of front vertical support through bolt, and the rear end of transverse support is fixedly connected with the upper end of rear vertical support through bolt, the lifting mechanism includes pneumatic cylinder, the pneumatic cylinder is fixedly connected with the middle part of transverse support through bolt, the piston rod of pneumatic cylinder is arranged downward, and the lower end of piston rod of pneumatic cylinder is fixedly connected with compression roller frame through bolt, the compression roller is installed on compression roller frame, and the compression roller is located directly above coating roller, the compression roller frame is driven to move downward by the elongation of piston rod of pneumatic cylinder, so that the compression roller is arranged close to coating roller, the control console is fixedly arranged on the front vertical support, a plurality of control keys are arranged on the control console, and the opening and closing or temperature adjustment of far-infrared radiation heating plate are controlled by pressing or rotating control key.

[0012] The utility model further sets up: the paint storage tank is fixed with the upper end face of work table through bolt connection, the lower extreme of coating roller is located in paint storage tank, the right -hand member of paint storage tank is provided with scraper, the right upper end fixed setting of paint storage tank has scraper support, the upper end of scraper support is fixed with scraper through bolt connection.

[0013] The utility model discloses the beneficial effect is: compared with prior art, the utility model discloses reasonable structure design, and laser alignment instrument can adjust position along third linear guide rail according to processing needs, and the front end of coating roller is provided with front limit baffle, and the rear end of coating roller is provided with rear limit baffle, and front limit baffle and rear limit baffle can play the positioning effect to base material, guarantee base material and coating roller accurate alignment;

[0014] In the coating process, the far infrared radiation heating plate is opened, the far infrared radiation heating plate converts electric energy into heat energy through the internal heating element, and radiates outward in the form of far infrared, so that the paint layer after coating of the base material dries up quickly, thereby improving the work efficiency.

[0015] When replacing the coating roller, first, the first push rod of the first linear driver pulls the coating roller positioning frame to move forward, so that the first smooth part of the middle shaft of the coating roller is separated from the inner hole of the bearing, then, the second push rod of the second linear driver pulls the first linear driver to move left; At this time, after removing the first positioning nut, the coating roller can be pulled out forward, after replacing the new coating roller, locking the first positioning nut again, then, the second push rod of the second linear driver pushes the first linear driver to move right to reset, the first push rod of the first linear driver pushes the coating roller positioning frame to move backward to reset, and the first smooth part of the middle shaft of the coating roller is inserted into the inner hole of the bearing, which is reasonable in structure design, convenient in coating roller replacement operation, easy in alignment of the base material and the coating roller, can improve the work efficiency and is good in practicality.

[0016] The utility model will be further explained in connection with the drawings and specific embodiments of the specification. DRAWINGS

[0017] Figure 1 It is the structure schematic drawing of the utility model embodiment;

[0018] Figure 2 It is the left view schematic drawing of the utility model embodiment;

[0019] Figure 3 It is the local plan view schematic drawing of the utility model embodiment;

[0020] Figure 4 It is the structure schematic drawing of the coating roller of the utility model embodiment;

[0021] Figure 5 This is a schematic diagram of the structure of the rotating shaft in an embodiment of the present invention. Detailed Implementation

[0022] In the description of this embodiment, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] See Figures 1 to 5 This utility model discloses a laser precision coating machine coating mechanism, including a worktable 1 and a gantry frame. A lifting mechanism is installed on the gantry frame. A pressure roller frame 2, a pressure roller 3, a coating roller 4, and a paint storage tank 5 are installed inside the gantry frame. The gantry frame includes a front vertical support 61, a rear vertical support 62, and a horizontal support 63. The lower end of the front vertical support 61 is fixedly connected to the front end of the upper surface of the worktable 1, and the lower end of the rear vertical support 62 is fixedly connected to the rear end of the upper surface of the worktable 1. The paint storage tank 5 is located between the front vertical support 61 and the rear vertical support 62. The coating roller 4 is installed above the paint storage tank 5. A drive motor 7 is installed at the rear end of the coating roller 4, driving the coating roller 4 to rotate. A [missing information - likely a device or structure] is positioned on the front end of the front vertical support 61 aligned with the coating roller 4. A rectangular notch 611 is provided, within which a coating roller positioning frame 8 is provided. The lower end of the coating roller positioning frame 8 is provided with a first linear guide rail 9. The front end of the coating roller positioning frame 8 is provided with a first linear driver 10, and the rear end of the first linear driver 10 is provided with a first push rod 101. The first linear driver 10 drives the coating roller positioning frame 8 to move back and forth along the first linear guide rail 9 through the first push rod 101. The lower end of the first linear driver 10 is provided with a second linear guide rail 11. The left end of the first linear driver 10 is provided with a second linear driver 12, and the right end of the second linear driver 12 is provided with a second push rod 121. The second linear driver 12 drives the first linear driver 10 to move left and right along the second linear guide rail 11 through the second push rod 121.

[0024] A third linear guide rail 13 is fixedly installed on the lower end surface of the horizontal support 63. A plurality of laser alignment instruments 14 are installed on the third linear guide rail 13, with the laser emitting end of the laser alignment instrument 14 facing downward.

[0025] The pressing roller 3 is provided with a heating cavity between the pressing roller 3 and the lower end surface of the pressing roller frame 2, and a far-infrared radiation heating plate 15 is fixedly arranged on the lower end surface of the pressing roller frame 2, and the far-infrared radiation direction of the far-infrared radiation heating plate 15 is arranged downward.

[0026] As preferred, the lower end of the front vertical support 61 and the upper end surface of the workbench 1 are fixed by welding or by bolt connection, and the lower end of the rear vertical support 62 and the rear end of the upper end surface of the workbench 1 are fixed by welding or by bolt connection; the first linear guide rail 9 is fixed on the upper end surface of the workbench 1 by bolt connection, the upper end surface of the workbench 1 is provided with a guide rail mounting groove, the second linear guide rail 11 is embeddedly mounted in the guide rail mounting groove and is fixed by screws or glue, and the lower end surface of the first linear drive 10 is integrally provided with a positioning sliding block which is inserted into the guide rail sliding groove of the second linear guide rail 11 in alignment; the far-infrared radiation heating plate 15 is fixed on the pressing roller frame 2 by bolt connection, and the use temperature range of the far-infrared radiation heating plate is between -40 DEG C and 200 DEG C; and the driving motor 7 is a servo motor or a variable frequency motor.

[0027] In order to make the structure design of the utility model more reasonable, as preferred, the front end of the coating roller 4 is provided with a front limiting baffle 41 which is integrally arranged with the front end of the coating roller 4 or is fixed by screw connection, and the rear end of the coating roller 4 is provided with a rear limiting baffle 42 which is integrally arranged with the rear end of the coating roller 4 or is fixed by screw connection.

[0028] The front limiting baffle 41, the coating roller 4 and the rear limiting baffle 42 form an integrated structure after being fixed.

[0029] A rotating shaft is arranged in the middle part of the coating roller 4, the rotating shaft is sequentially provided with a first smooth part 161, a first external thread connecting part 162, a second smooth part 163, a second external thread connecting part 164 and a third smooth part 165 from front to back, the coating roller positioning frame 8 is provided with a first shaft hole at the position of the first smooth part, a bearing 17 is fixedly arranged in the first shaft hole, and the front end of the first smooth part 161 is arranged in the inner hole of the bearing 17; the first external thread connecting part 162 is sleeved with a first positioning nut 18, the second external thread connecting part 164 is sleeved with a second positioning nut 19, and the third smooth part 165 is provided with a shaft coupling 20 between the motor shaft of the driving motor 7; as preferred, the coating roller 4 is mainly sleeved on the second smooth part 163, the front end of the coating roller 4 is locked and positioned by the first positioning nut 18, the rear end of the coating roller 4 is locked and positioned by the second positioning nut 19, the rear end of the rotating shaft is connected and fixed with the motor shaft of the driving motor 7 through the shaft coupling 20, the rotating shaft is driven to rotate by the motor shaft of the driving motor 7, and the coating roller 4 is connected with the rotating shaft.

[0030] The upper inner wall surface of the rectangular notch 611 is provided with a guide chute 612, and the upper end surface of the coating roller positioning frame 8 is integrally provided with a positioning protrusion 81 in alignment with the position of the guide chute.

[0031] The front end of the horizontal support 63 is fixed by bolt connection with the upper end of the front vertical support 61, and the rear end of the horizontal support 63 is fixed by bolt connection with the upper end of the rear vertical support 62; the lifting mechanism comprises a gas cylinder 21, the gas cylinder 21 is fixed by bolt connection with the middle part of the horizontal support 63, the piston rod of the gas cylinder 21 is arranged downward, and the lower end of the piston rod of the gas cylinder 21 is fixed by bolt connection with the pressure roller frame 2; the pressure roller 3 is installed on the pressure roller frame 2, and the pressure roller 3 is located directly above the coating roller 4, the pressure roller frame 2 is driven to move downward by the elongation of the piston rod of the gas cylinder 21, so that the pressure roller 3 is arranged close to the coating roller 4; a control console 22 is fixedly arranged on the front vertical support 61, a plurality of control keys are arranged on the control console 22, and the opening and closing or temperature adjustment of the far infrared radiation heating plate 15 is controlled by pressing or rotating the control keys.

[0032] The coating reservoir 5 is fixed by bolt connection with the upper end surface of the workbench 1; the lower end of the coating roller 4 is located in the coating reservoir 5, a scraper 23 is arranged at the right end of the coating reservoir 5, a scraper support 24 is fixedly arranged at the right upper end of the coating reservoir 5, and the upper end of the scraper support 24 is fixed by bolt connection with the scraper 23. As a preferred, a silica gel layer is bonded to the head of the scraper 23, and the silica gel layer is tightly attached to the outer surface of the coating roller 4 away from the scraper 23.

[0033] In actual application, the laser alignment instrument 14 can be adjusted in position along the third straight line guide rail 13 according to the processing needs, the front end of the coating roller 4 is provided with a front limiting baffle 41, and the rear end of the coating roller 4 is provided with a rear limiting baffle 42, the front limiting baffle 41 and the rear limiting baffle 42 can play a positioning role on the substrate, and ensure that the substrate is accurately aligned with the coating roller;

[0034] In the coating process, the far infrared radiation heating plate 15 is turned on, the far infrared radiation heating plate 15 converts electrical energy into heat energy through the internal heating element, and radiates outward in the form of far infrared rays, so that the coating layer of the substrate after coating dries up quickly, thereby improving the work efficiency;

[0035] When the coating roller 4 is replaced, first, the first push rod 101 of the first linear actuator 10 pulls the coating roller positioning frame 8 to move forward along the first linear guide rail 9, so that the front end of the first smooth part 161 of the middle rotating shaft of the coating roller 4 is separated from the inner hole of the bearing 17, then the second push rod 121 of the second linear actuator 12 pulls the first linear actuator 10 to move left along the second linear guide rail 11; at this time, after the first positioning nut 18 is removed, the coating roller 4 can be pulled out forward, after a new coating roller is replaced, the first positioning nut 18 is locked again, then the second push rod 121 of the second linear actuator 12 pushes the first linear actuator 10 to move right along the second linear guide rail 11 to reset, the first push rod 101 of the first linear actuator 10 pushes the coating roller positioning frame 8 to move backward along the first linear guide rail 9 to reset, and the front end of the first smooth part 161 of the middle rotating shaft of the coating roller 4 is inserted into the inner hole of the bearing 17, so that the structure is reasonable, the coating roller is convenient to replace, the substrate and the coating roller are easy to align, the working efficiency is improved, and the practicality is good.

[0036] The above embodiment is only used for further illustrating the utility model, and cannot be understood as limiting the protection scope of the utility model. The skilled in the art can make some non-essential improvements and adjustments to the utility model according to the content of the utility model, and the improvements and adjustments fall within the protection scope of the utility model.

Claims

1. A laser precision coating machine coating mechanism, comprising a workbench (1) and a gantry, a lifting mechanism is arranged on the gantry, a pressure roller frame (2), a pressure roller (3), a coating roller (4) and a paint storage tank (5) are arranged in the gantry, the gantry comprises a front vertical support (61), a rear vertical support (62) and a horizontal support (63), the lower end of the front vertical support (61) is fixedly connected with the front end of the upper end surface of the workbench (1), the lower end of the rear vertical support (62) is fixedly connected with the rear end of the upper end surface of the workbench (1), the paint storage tank (5) is arranged between the front vertical support (61) and the rear vertical support (62), the coating roller (4) is installed above the paint storage tank (5), a driving motor (7) is arranged at the rear end of the coating roller (4), and the coating roller (4) is driven to rotate by the driving motor (7); characterized in that: The front end face of the front vertical support (61) is provided with a rectangular notch (611) at the position aligned with the coating roller (4), and the rectangular notch (611) is provided with a coating roller positioning frame (8). The lower end of the coating roller positioning frame (8) is provided with a first linear guide rail (9), and the front end of the coating roller positioning frame (8) is provided with a first linear driver (10). The rear end of the first linear driver (10) is provided with a first push rod (101), and the first linear driver (10) drives the coating roller positioning frame (8) to move back and forth along the first linear guide rail (9) through the first push rod (101). The lower end of the first linear driver (10) is provided with a second linear guide rail (11), and the left end of the first linear driver (10) is provided with a second linear driver (12). The right end of the second linear driver (12) is provided with a second push rod (121), and the second linear driver (12) drives the first linear driver (10) to move left and right along the second linear guide rail (11) through the second push rod (121). The lower end face of the horizontal support (63) is fixedly provided with a third linear guide rail (13), and the third linear guide rail (13) is provided with a plurality of laser alignment instruments (14). The laser emission end of the laser alignment instrument (14) is downwardly arranged. A heating cavity is arranged between the pressure roller (3) and the lower end face of the pressure roller frame (2). A far-infrared radiation heating plate (15) is fixedly arranged on the lower end face of the pressure roller frame (2), and the far-infrared radiation direction of the far-infrared radiation heating plate (15) is downwardly arranged.

2. The coating mechanism of a laser precision coater according to claim 1, characterized in that: The front end of the coating roller (4) is provided with a front limiting baffle (41) which is integrally arranged with the front end of the coating roller (4) or is fixed by screw connection. The rear end of the coating roller (4) is provided with a rear limiting baffle (42) which is integrally arranged with the rear end of the coating roller (4) or is fixed by screw connection.

3. The coating mechanism of a laser precision coater according to claim 2, wherein: A rotating shaft is arranged in the middle part of the coating roller (4). The rotating shaft is sequentially provided with a first smooth part (161), a first external thread connecting part (162), a second smooth part (163), a second external thread connecting part (164) and a third smooth part (165) from front to back. A first shaft hole is arranged in the coating roller positioning frame (8) at the position aligned with the first smooth part. A bearing (17) is fixedly arranged in the first shaft hole. The front end of the first smooth part (161) is arranged in the inner hole of the bearing (17). The first external thread connecting part (162) is sleeved with a first positioning nut (18), and the second external thread connecting part (164) is sleeved with a second positioning nut (19). A shaft coupling (20) is arranged between the third smooth part (165) and the motor shaft of the driving motor (7).

4. The coating mechanism of claim 3, wherein: A guide sliding groove (612) is arranged on the upper inner wall face of the rectangular notch (611), and a positioning protrusion (81) is integrally arranged on the upper end face of the coating roller positioning frame (8) at the position aligned with the guide sliding groove.

5. The coating mechanism of the laser precision coater according to claim 1 or 4, wherein: The front end of the horizontal support (63) is fixedly connected with the upper end of the front vertical support (61) through bolts, and the rear end of the horizontal support (63) is fixedly connected with the upper end of the rear vertical support (62) through bolts; the lifting mechanism comprises a gas cylinder (21), the gas cylinder (21) is fixedly connected with the middle part of the horizontal support (63) through bolts, the piston rod of the gas cylinder (21) is arranged downward, and the lower end of the piston rod of the gas cylinder (21) is fixedly connected with the press roller frame (2) through bolts; the press roller (3) is installed on the press roller frame (2), and the press roller (3) is located directly above the coating roller (4); the press roller (3) is arranged close to the coating roller (4) through the elongation of the piston rod of the gas cylinder (21) to drive the press roller frame (2) to move downward; a control console (22) is fixedly arranged on the upper end of the front vertical support (61), a plurality of control keys are arranged on the control console (22), and the opening and closing or temperature adjustment of the far infrared radiation heating plate (15) is controlled by pressing or rotating the control keys.

6. The coating mechanism of the laser precision coater according to claim 1 or 4, wherein: The upper end surface of the workbench (1) is fixedly connected with the paint storage tank (5) through bolts; the lower end of the coating roller (4) is located in the paint storage tank (5), the right end of the paint storage tank (5) is provided with a scraper (23), the right upper end of the paint storage tank (5) is fixedly provided with a scraper support (24), and the upper end of the scraper support (24) is fixedly connected with the scraper (23) through bolts.

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