Automatic film pasting device

Abstract

An automatic film pasting device comprises a conveying mechanism, a stripping mechanism, an anti-sticking pad, a three-axis transfer mechanism and a film pasting platform, the conveying mechanism can convey a coiled protective film to the stripping mechanism, the stripping mechanism can strip the protective film to the anti-sticking pad, the three-axis transfer mechanism is provided with a suction cup and a silica gel mold, and the suction cup is provided with a suction cup. The three-axis transfer mechanism can transfer a protective film to the film pasting platform through the suction cup, a plurality of lamps are placed on the film pasting platform according to a certain interval and angle, and after the three-axis transfer mechanism moves the protective film to the position aligned with the lamps, the suction cup changes from negative pressure to positive pressure to blow and attach the protective film to the surfaces of the lamps. And the three-axis transfer mechanism aligns the silica gel mold to the lamp to tightly press the protective film. Automatic film pasting can be achieved by manually placing the lamp needing film pasting to the designated position of the film pasting platform, the labor cost is reduced, the equipment structure is simple, no complex mechanical structure is needed, the equipment cost is low, the equipment is suitable for small lamp production, and products have more competitive advantages.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of lamp production, and in particular to an automatic film pasting device. BACKGROUND

[0002] In an electric vehicle lamp, the material of the lamp cover is generally PC or PMMA. In order to effectively protect the lamp cover and avoid the appearance of the lamp cover from being stained or having foreign matter adsorbed and being scratched during the process of rotation or logistics transportation, in the production operation of the lamp, such as the production operation of the front lamp and small lamp of a scooter, an employee needs to manually tear off and paste a lamp cover protection film one by one on the surface of the lamp cover. The lamp cover protection film is small and thin, generally only 0.04 mm thick, and the protection film is easy to curl after being torn off, the production efficiency is low, and there are problems of missed pasting and poor quality consistency.

[0003] A patent with the patent name "A novel automatic pasting device for lamps" is disclosed in Chinese Patent No. "CN220720310U", which discloses a device for automatically pasting a lamp film. However, the device uses a mechanical hand to carry a CCD vision system, which has a very high cost. For lamps with lower prices and lower precision requirements, the production cost will be increased and the overall profit will be reduced. CONTENT OF THE UTILITY MODEL

[0004] The application provides an automatic film pasting device, which realizes automatic film pasting on a lamp by using a low-cost structure.

[0005] According to the application, an automatic film pasting device is provided for pasting a protection film on a lamp (9), which comprises a conveying mechanism, a peeling mechanism, an anti-sticking pad, a three-axis transfer mechanism and a film pasting platform. The conveying mechanism can convey a roll of protection film to the peeling mechanism, and the peeling mechanism can peel the protection film to the anti-sticking pad. The three-axis transfer mechanism is provided with a suction cup and a silica gel mold. The film pasting platform is provided with a plurality of lamps arranged at a certain interval and angle. The three-axis transfer mechanism can transfer the protection film to the film pasting platform and align the protection film with the lamp by using the suction cup. The suction cup changes from negative pressure to positive pressure to blow and attach the protection film to the surface of the lamp. The three-axis transfer mechanism aligns the silica gel mold with the lamp to press the protection film tightly.

[0006] In an implementable manner, the three-axis transfer mechanism can move linearly in three mutually perpendicular directions, and the three-axis transfer mechanism is provided with at least two groups of suction cups and two groups of silica gel molds.

[0007] In an implementable manner, the film pasting platform is a conveyor belt platform, and the film pasting platform can move intermittently under the drive of a motor.

[0008] In an implementable manner, the conveyor belt strip of the conveyor belt platform is provided with a relatively protruding positioning strip, the lamps are placed on a cavity seat, and the cavity seat is provided with a positioning groove matched with the positioning strip.

[0009] In an embodiment, a plurality of pairs of positioning guide strips are arranged above the conveying belt platform, each pair of the positioning guide strips forms a wedge-shaped channel to correct the position of the cavity seat as the conveying belt moves.

[0010] In an embodiment, the conveying mechanism comprises a feeding wheel, a collecting wheel and a guide wheel, the feeding wheel is provided with a protective film roll, the collecting wheel is provided with a collecting roll, the feeding wheel is provided with a first motor, the collecting wheel is provided with a second motor, and the guide wheel is provided with a plurality of pairs of guides for guiding the material.

[0011] In an embodiment, the stripping mechanism comprises a moving frame, a sliding rail and a return spring, the front end of the moving frame is provided with a stripping triangle to make the material bend at a large angle at the position, and the protective film does not bend at the stripping triangle position to make the protective film strip onto the anti-sticking pad.

[0012] In an embodiment, the stripping mechanism is provided with a locking shaft, the locking shaft is provided with an electromagnetic locking pin, the electromagnetic locking pin is controlled by a power source to realize locking and unlocking of the locking shaft, and the locking shaft does not rotate when locked.

[0013] In an embodiment, the guide wheel comprises a first guide wheel and a second guide wheel, the first guide wheel is provided with a first wheel speed sensor, and the second guide wheel is provided with a second wheel speed sensor.

[0014] In an embodiment, the suction cup and the silica gel mold are detachably fixed to the three-axis transfer mechanism.

[0015] Compared with the prior art, the automatic film pasting device has the following beneficial effects: the lamp to be pasted with the film is placed on the film pasting platform at a specified position by manual operation, automatic film pasting is realized, labor cost is reduced, the device structure is simple, a complex mechanical structure is not needed, automatic film pasting is realized through a simple track, the device cost is low, and the device is suitable for small lamp production, so that the product has more competitive advantages.

[0016] It should be understood that the content described in this part is not intended to identify key or important features of the embodiments of the application, nor is it used to limit the scope of the application. Other features of the application will become apparent through the following description. BRIEF DESCRIPTION OF DRAWINGS

[0017] The above and other objects, features and advantages of the example embodiments of the present application will be more apparent from the following detailed description taken in conjunction with the accompanying drawings. In the drawings, several embodiments of the present application are shown by way of example and not limitation, in which:

[0018] In the drawings, the same or corresponding reference numerals indicate the same or corresponding parts.

[0019] Figure 1The composition structure of the automatic film pasting device of the embodiment of the present application is shown in the perspective view Figure 1 ;

[0020] Figure 2 The composition structure of the automatic film pasting device of the embodiment of the present application is shown in the perspective view Figure 2 ;

[0021] Figure 3 The extension state of the peeling mechanism of the automatic film pasting device of the embodiment of the present application is shown in the top view

[0022] Figure 4 The retraction state of the peeling mechanism of the automatic film pasting device of the embodiment of the present application is shown in the top view

[0023] Figure 5 The retraction state of the peeling mechanism of the automatic film pasting device of the embodiment of the present application is shown in the partial sectional view

[0024] Figure 6 The extension state of the peeling mechanism of the automatic film pasting device of the embodiment of the present application is shown in the partial sectional view

[0025] Figure 7 The suction cup and the silica gel mold of the automatic film pasting device of the embodiment of the present application are shown in the perspective view. DETAILED DESCRIPTION

[0026] In order to make the purpose, characteristics and advantages of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by the person skilled in the art without creative labor are within the protection scope of the present application.

[0027] As Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown in the drawings, an automatic film pasting device comprises a conveying mechanism 1, a peeling mechanism 2, an anti-sticking pad 3, a three-axis transfer mechanism 4 and a film pasting platform 5. The conveying mechanism 1 can convey a roll of protective film 6 to the peeling mechanism 2. The peeling mechanism 2 can peel the protective film 6 to the anti-sticking pad 3. The three-axis transfer mechanism 4 is provided with a suction cup 7 and a silica gel mold 8. The three-axis transfer mechanism 4 can transfer the protective film 6 to the film pasting platform 5 by means of the suction cup 7. The suction cup 7 sucks the protective film 6 by means of negative pressure, and then moves by means of the three-axis transfer mechanism 4. The film pasting platform 5 places a plurality of lamps 9 at a certain interval and angle. After the protective film 6 is aligned with the lamps 9, the suction cup 7 changes from negative pressure to positive pressure to blow and attach the protective film 6 to the surface of the lamps 9. The three-axis transfer mechanism 4 aligns the silica gel mold 8 with the lamps 9 to press the protective film 6 tightly, that is, the silica gel mold 8 is moved downward by a certain distance to press the lamps and keep for a certain time. The anti-sticking pad 3 can be made of silica gel, which is smooth on the surface and similar to the anti-sticking sticker. The anti-sticking pad 3 can also be sprayed with an anti-sticking agent on the surface to achieve the anti-sticking effect.

[0028] As shown in the drawings, Figure 1 and Figure 3 The three-axis transfer mechanism 4 can move linearly in three mutually perpendicular directions, that is, up and down on the first track 10, left and right on the second track 11 and forward and backward on the third track 12. The three-axis transfer mechanism 4 is provided with at least two groups of suction cups 7 and two groups of silica gel molds 8. The three-axis transfer mechanism 4 can be driven by a servo motor using a toothed belt drive. Figure 1 The left-right direction and the forward-backward direction in the drawings are relative directions. In actual use, the left-right direction may be in the actual forward-backward direction, or may be symmetrically interchanged.

[0029] As shown in the drawings, Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 7 The film pasting platform 5 is a conveyor belt platform 13. The film pasting platform 5 can move intermittently under the drive of a motor. The anti-sticking pad 3 is arranged beside the conveyor belt platform 13 and within the moving range of the three-axis transfer mechanism 4, so that the suction cup 7 can suck the protective film 6 on the anti-sticking pad 3.

[0030] As shown in the drawings, Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the conveyor belt strip 17 of the conveyor belt platform 13 is provided with a relatively protruding positioning strip 14, the lamp 9 is placed on the cavity seat 15 which is matched with the inner cavity of the lamp 9, the cavity seat 15 is provided with a positioning groove matched with the positioning strip 14, the cavity seat 15 is provided with two installation positions to install two lamps 9, the cavity seat 15 can be installed to a certain position through the positioning strip 14, the positioning strip 14 can be made of metal material, so that the position of the positioning strip 14 can be sensed by a Hall sensor or other sensor. Of course, the conveyor belt uses a toothed structure, and the position of the positioning strip 14 can also be accurately controlled by using a servo motor, without the need to set an extra sensor.

[0031] As shown in Figure 1 , Figure 2 , Figure 3 and Figure 4 , a plurality of pairs of positioning guide strips 16 are arranged above the conveyor belt platform 13, each pair of positioning guide strips 16 forms a wedge-shaped channel and can correct the position of the cavity seat 15 as the conveyor belt moves. The front and rear direction position can be controlled by the positioning strip 14, and the left and right direction position needs to be limited by the positioning guide strip 16. Although the positioning accuracy of the protective film 6 does not need to be too high, a large deviation can easily cause problems, so improving the accuracy of the film sticking of the lamp 9 under the condition of using a lower cost is still of great significance. Manual placement is required for the placement of the lamp 9, and mechanical hand placement can also be achieved regardless of cost. Under the premise that the three-axis transfer mechanism 4 is provided with two groups of suction cups 7 and two groups of silica gel molds 8, the lamp 9 is placed in the same cavity seat 15 as a group of two, so that the film sticking of two lamps 9 can be simultaneously realized at one time. One row can accommodate six lamps 9, and the number can be increased or decreased as needed. The conveyor belt strip 17 can be stopped when placing the lamp 9, and the film can be stuck as long as the speed is the same. It can also be stuck in the moving state, and the ideal state is still to stick the film when the conveyor belt strip 17 is stopped. As shown in Figure 3 , the peeling mechanism 2 is extended to the outermost end, as shown in Figure 4 , the peeling mechanism 2 falls in the specified position of the anti-sticking pad 3 during the retraction process.

[0032] As shown in Figure 1 , Figure 2 , Figure 5 and Figure 6 , the conveying mechanism 1 includes a feeding wheel 18, a collecting wheel 19 and a guide wheel 20. The feeding wheel 18 is provided with a protective film roll 25, the collecting wheel 19 is provided with a material return roll 26, the feeding wheel 18 is provided with a first motor 23, the collecting wheel 19 is provided with a second motor 24, and the guide wheel 20 is provided with a plurality of pairs of guide wheels which can guide the protective film material. The guide wheel 20 can also avoid wrinkles in the material, so that the protective film material has a certain degree of tightness.

[0033] As shown in Figure 5 and Figure 6As shown, the stripping mechanism 2 includes a moving frame 27, a sliding rail 28 and a return spring 29, the moving frame 27 is provided with a stripping triangle 30 at the front end, so that the material is bent at a large angle at the position, and the protective film 6 is not bent at the position of the stripping triangle 30, so that the protective film 6 is stripped onto the anti-sticking pad 3, and the position of the protective film 6 can be detected by using an optical fiber sensor. The return spring 29 can push the sliding rail 28 to move outward to the outermost end when there is no external force. At this time, the feeding wheel 18 needs to be continuously fed, and the material collecting wheel 19 also needs to be fed at the same speed instead of being collected.

[0034] As shown in Figure 5 and Figure 6 , the stripping mechanism 2 is provided with a locking shaft 31, the locking shaft 31 is provided with an electromagnetic locking pin 32, the electromagnetic locking pin 32 is controlled by a power source to realize locking and unlocking of the locking shaft 31, and the locking shaft 31 does not rotate when locked, so that the protective film material also does not move relatively. In this way, the feeding wheel 18 and the material collecting wheel 19 can be pulled to rotate synchronously under the premise that the elastic force of the return spring 29 is large enough. Of course, the setting of a clutch between the first motor 23 and the feeding wheel 18 and the setting of a clutch between the second motor 24 and the material collecting wheel 19 can make the resistance of the return smaller. Figure 5 For the retracted state of the stripping triangle 30, Figure 6 For the extended state of the stripping triangle 30, during the process that the stripping triangle 30 changes from the extended state to the retracted state, the feeding wheel 18 always remains stationary, and the material collecting wheel 19 rotates rapidly, and the protective film 6 is continuously stripped onto the anti-sticking pad 3 under the bending action of the stripping triangle 30. During the process that the stripping triangle 30 changes from the retracted state to the extended state, both the material collecting wheel 19 and the feeding wheel 18 need to rotate, and the material does not move relative to the stripping triangle 30.

[0035] As shown in Figure 1 , Figure 2 , Figure 5 and Figure 6 , the guide wheel 20 includes a first guide wheel 21 and a second guide wheel 22, the first guide wheel 21 is provided with a first wheel speed sensor, the second guide wheel 22 is provided with a second wheel speed sensor, the first motor 23 is a main motor, and the second motor 24 is an auxiliary motor. The first wheel speed sensor compares the linear speed of the first guide wheel 21 obtained with the linear speed of the second guide wheel 22 obtained by the second wheel speed sensor, adjusts the speed of the second motor 24 if there is a difference, and until the same linear speed is obtained. Of course, adjusting the speeds of the first motor 23 and the second motor 24 at the same time can quickly reach balance, but the control logic is more difficult, and controlling one motor can also meet the needs.

[0036] As shown in Figure 7As shown, the suction cup 7 and the silica gel mold 8 are detachably fixed to the three-axis transfer mechanism 4. Different lamps 9 require different suction cups 7 and silica gel molds 8 to be customized, and therefore need to be set in a detachable structure, so as to facilitate replacement, reduce the cost of equipment, and improve the versatility of the equipment.

[0037] It should be understood that the various forms of flow shown above can be used to reorder, add or delete steps. For example, the steps described in the present application can be executed in parallel, sequentially or in a different order, as long as the desired results of the technical solutions of the present application can be achieved, which is not limited herein.

[0038] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An automatic film attaching device for attaching a protective film (6) to a lamp (9), characterized in that: It includes conveying mechanism (1), stripping mechanism (2), anti-sticking pad (3), three-axis transfer mechanism (4) and film pasting platform (5);The conveying mechanism (1) can convey the protective film (6) in roll to the stripping mechanism (2);The stripping mechanism (2) can strip the protective film (6) to the anti-sticking pad (3); The three-axis transfer mechanism (4) is provided with suction cup (7) and silica gel mold (8), the film pasting platform (5) is placed with a certain interval and angle Multiple lamps (9), the three-axis transfer mechanism (4) moves the protective film (6) to the film pasting platform (5) and the lamp (9) is aligned position, the suction cup (7) is changed from negative pressure to positive pressure and the protective film (6) is blown to the surface of the lamp (9), the three-axis transfer mechanism (4) is aligned with the lamp (9) and the protective film (6) is pressed tightly.

2. The automatic film pasting device according to claim 1, characterized in that: The three-axis transfer mechanism (4) can move linearly in three mutually perpendicular directions, the three-axis transfer mechanism (4) is provided with at least two groups of suction cups (7) and two groups of silica gel molds (8).

3. The automatic film pasting device according to claim 1, characterized in that: The film pasting platform (5) is a conveyor belt platform (13), and the film pasting platform (5) moves under the drive of a motor.

4. The automatic film pasting device according to claim 3, characterized in that: The conveyor belt strip (17) of the conveyor belt platform (13) is provided with a relatively protruding positioning strip (14), the lamp (9) is placed on the cavity seat (15), and the cavity seat (15) is provided with a positioning groove matched with the positioning strip (14).

5. The automatic film pasting device according to claim 4, characterized in that: A plurality of pairs of positioning guide strips (16) are arranged above the conveyor belt platform (13), each pair of positioning guide strips (16) forms a wedge-shaped channel, and the position of the cavity seat (15) can be corrected as the conveyor belt moves.

6. The automatic film pasting device according to any one of claims 1 to 5, characterized in that: The conveying mechanism (1) includes a feeding wheel (18), a material collecting wheel (19) and a guide wheel (20), the feeding wheel (18) is provided with a protective film roll (25), the material collecting wheel (19) is provided with a material return roll (26), the feeding wheel (18) is provided with a first motor (23), the material collecting wheel (19) is provided with a second motor (24), and the guide wheel (20) is provided with a plurality of pairs of guide wheels (20). 7.The automatic film pasting device according to claim 6, characterized in that: The stripping mechanism (2) includes a moving frame (27), a sliding rail (28) and a return spring (29), the moving frame (27) is provided with a stripping triangle (30) at the front end, so that the material is bent at a large angle when being conveyed to the position, and the protective film (6) is not bent at the stripping triangle (30) position, so that the protective film (6) is stripped onto the anti-sticking pad (3). 8.The automatic film pasting device according to claim 7, characterized in that: The stripping mechanism (2) is provided with a locking shaft (31), the locking shaft (31) is provided with an electromagnetic locking pin (32), the electromagnetic locking pin (32) is controlled by a power source to realize locking and unlocking of the locking shaft (31), and the locking shaft (31) is locked and does not rotate. 9.The automatic film pasting device according to claim 8, characterized in that: The guide wheel (20) includes a first guide wheel (21) and a second guide wheel (22), the first guide wheel (21) is provided with a first wheel speed sensor, and the second guide wheel (22) is provided with a second wheel speed sensor. 10.The automatic film pasting device according to claim 9, characterized in that: The suction cup (7) and the silica gel mold (8) are detachably fixed to the three-axis transfer mechanism (4).

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