Cambered surface film pasting suction head and film pasting jig

Abstract

The utility model relates to the technical field of film pasting, and discloses a cambered surface film pasting suction head and a film pasting jig. The shell is detachably connected with the fixing plate, and a mounting cavity is formed in the shell; the end, away from the fixing plate in the height direction, of the shell is provided with an attaching cambered surface, and the attaching cambered surface is suitable for being attached to the cambered surface of the product. The suction head inner core is movably arranged in the mounting cavity, and the end, away from the fixing plate in the height direction, of the suction head inner core is suitable for stretching out of the mounting cavity and sucking the gum; one end, in the height direction, of the spring abuts against the suction head inner core, the other end of the spring abuts against the fixing plate, and the spring is suitable for abutting against and enabling the suction head inner core to stretch out of the attaching arc face. According to the cambered surface film pasting suction head provided by the utility model, one-time action in-place pasting of a concave cambered surface of a product can be realized, the precision of cambered surface film pasting is improved, and back glue is prevented from being pressed obliquely during secondary pressing.

Description

Technical Field

[0001] The utility model relates to the technical field of film pasting, and in particular to a curved film pasting suction head and a film pasting fixture. Background Art

[0002] The existing suction head absorbs the adhesive from a flat surface, so the suction surface of the suction head must be flat. However, when the suction head is attached to the curved surface of the product, it cannot completely fit the curved surface, and the product needs to be pressed a second time to fit the adhesive back to the curved surface, which not only wastes the production cycle, but also the adhesive back is easily displaced during the second pressing. Utility Model Content

[0003] In view of this, the utility model provides a curved film sticking suction head and a film sticking fixture to solve the problem that the existing suction head cannot be properly attached to the concave curved surface in one action and the back adhesive is easily dislocated during the secondary pressing.

[0004] In a first aspect, the utility model provides a curved film-applying nozzle, comprising:

[0005] Fixed plate;

[0006] The shell is detachably connected to the fixing plate, and a mounting cavity is provided on the shell; a fitting arc surface is provided at one end of the shell away from the fixing plate in the height direction, and the fitting arc surface is suitable for fitting with the arc surface of the product;

[0007] The suction head inner core is movably arranged in the installation cavity, and one end of the suction head inner core away from the fixing plate in the height direction is suitable for extending from the installation cavity and sucking the back glue;

[0008] The spring has one end along the height direction abutting against the inner core of the suction head, and the other end abutting against the fixing plate. The spring is suitable for abutting against and making the inner core of the suction head extend from the fitting arc surface.

[0009] The curved film sticking suction head provided by the utility model mainly comprises a fixing plate, a shell, a suction head inner core and a spring, wherein the shell is detachably connected to the fixing plate, the suction head inner core is slidably arranged in the installation cavity of the shell, one end of the spring along the height direction abuts against the suction head inner core, and the other end abuts against the fixing plate; by arranging the suction head inner core, the suction head inner core is extended from the installation cavity along the height direction toward a direction away from the fixing plate and absorbs the back glue; by arranging the spring, when the suction head inner core adsorbs the back glue and contacts the product, it is subjected to the resistance of the product, the spring is compressed, and the shell continues to approach the product along the height direction relative to the suction head inner core until the fitting curved surface of the shell is completely fitted with the curved surface of the product; by arranging the fitting curved surface on the shell, when sticking the film, the back glue at the top end of the suction head inner core is pushed out and stuck to the curved surface of the product through the fitting curved surface, and at the same time, the fitting curved surface is vertically pressed down to completely fit the back glue with the curved surface of the product, so that the concave curved surface of the product is fitted in place in one action, the accuracy of the curved film sticking is improved, and the back glue is prevented from being pressed off during the secondary pressing.

[0010] In an optional embodiment, the inner core of the suction head includes a sliding portion and a suction head portion, the sliding portion is suitable for reciprocating along the height direction in the installation cavity, and the suction head portion is suitable for extending from the fitting arc surface along the height direction and sucking the back glue.

[0011] With such an arrangement, after the suction head absorbs the adhesive backing, the curved film suction head moves to the top of the product, and the curved film suction head moves downward in the height direction. When the suction head absorbs the adhesive backing and contacts the product, it is subjected to the resistance of the product, and the suction head inner core stops moving downward, while the shell continues to move downward in the height direction. The spring is compressed due to the upward movement of the sliding part relative to the shell, and the fitting curved surface is pressed vertically downward and the adhesive backing is completely fitted with the curved surface of the product, thereby achieving one-step fitting of the concave curved surface of the product. When the curved film suction head moves away from the product in the height direction, the fitting curved surface is separated from the adhesive backing, and the suction head is separated from the adhesive backing, and the spring resets the suction head inner core through its own elastic restoring force.

[0012] In an optional embodiment, the mounting cavity includes a first mounting section and a second mounting section, the first mounting section is suitable for limiting the sliding portion, and the second mounting section is suitable for guiding and limiting the suction head portion.

[0013] By so configuring, by configuring the first mounting section, on the one hand, the sliding part and the spring can be accommodated, and on the other hand, the sliding part can be limited so that the sliding part can only reciprocate linearly along the height direction; by configuring the second mounting section, the suction head portion can be guided and limited so that the suction head portion can only reciprocate linearly along the height direction, thereby preventing the suction head inner core from deflecting and / or shifting in the mounting cavity, thereby ensuring the accuracy of the suction head portion in adsorbing and grasping the back adhesive, and improving the accuracy of film sticking.

[0014] In an optional embodiment, a limiting plane is provided between the first mounting section and the second mounting section, and the limiting plane is suitable for abutting against a side of the sliding portion away from the fixing plate along the height direction.

[0015] By such an arrangement, the sliding part is limited in the height direction by the limiting plane to prevent the sliding part from detaching from the first installation section. At the same time, the limiting plane abuts against the sliding part to ensure that the spring is in a compressed state between the sliding part and the fixed plate to prevent the spring from being dislocated due to being too loose.

[0016] In an optional embodiment, the inner core of the suction head further includes a guide post, which is fixedly arranged on one side of the sliding portion close to the fixed plate along the height direction, and the guide post is coaxially arranged with the spring, and is suitable for limiting the spring.

[0017] By such an arrangement, the spring is sleeved on the guide post, thereby limiting and guiding the spring, ensuring that the spring always remains coaxial with the guide post during the expansion and contraction process, and preventing the spring from becoming unstable between the sliding part and the fixed plate.

[0018] In an optional embodiment, the distance between the end of the guide column away from the sliding portion in the height direction and the fixing plate is greater than the distance that the suction head extends from the fitting arc surface.

[0019] By such an arrangement, it is ensured that the bonding arc surface is completely bonded to the back adhesive when it is pressed vertically, thereby ensuring that the back adhesive is completely bonded to the arc surface of the product.

[0020] In an optional embodiment, a plurality of adsorption holes are provided on a side of the suction head away from the fixing plate in the height direction, and the adsorption holes are suitable for negative pressure adsorption of the backing adhesive;

[0021] An air pipe interface is provided on the sliding part, the air pipe interface is connected with each adsorption hole, and the air pipe interface is suitable for being connected with an external negative pressure air pipe.

[0022] By such an arrangement, negative pressure adsorption is performed on the back glue through the adsorption holes, so that the back glue is separated from the unwound back glue roll and placed at a designated position on the product; by opening an air pipe interface on the sliding part, each adsorption hole is connected to an external negative pressure air pipe through the air pipe interface, thereby realizing negative pressure adsorption of the back glue by the suction head.

[0023] In an optional embodiment, a side wall of the shell is provided with an avoidance hole, and the avoidance hole is suitable for avoiding the trachea interface.

[0024] This arrangement facilitates the docking of the external negative pressure air pipe with the air pipe interface, while preventing the side wall of the shell from interfering with the external negative pressure air pipe during the movement of the sliding part.

[0025] This arrangement facilitates accurate positioning and installation of the fixing plate and the shell.

[0026] In an optional embodiment, a positioning groove is formed on one side of the fixing plate close to the shell in the height direction, and the positioning groove is suitable for positioning the shell.

[0027] In a second aspect, the utility model further provides a film sticking jig, comprising: a positioning seat, and the curved film sticking suction head as described above.

[0028] The film sticking jig of the second aspect includes the curved film sticking nozzle of the first aspect. Therefore, the film sticking jig of the second aspect includes all the beneficial effects of the curved film sticking nozzle of the first aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 A three-dimensional diagram of a curved film-sticking nozzle according to an embodiment of the utility model;

[0031] Figure 2 A cross-sectional view of a curved film-applying nozzle according to an embodiment of the utility model;

[0032] Figure 3 Another cross-sectional view of a curved film-applying nozzle according to an embodiment of the utility model;

[0033] Figure 4 for Figure 3 A cross-sectional view of the mid-arc film tip after hiding the tip's inner core and spring;

[0034] Figure 5 It is a schematic side view of the structure of a curved film sticking nozzle according to an embodiment of the utility model;

[0035] Figure 6 A three-dimensional diagram of a fixing plate of a curved film sticking nozzle according to an embodiment of the utility model;

[0036] Figure 7 This is a schematic diagram of unwinding the adhesive backing according to an embodiment of the utility model;

[0037] Figure 8 It is a cross-sectional view of a film sticking fixture according to an embodiment of the utility model.

[0038] Description of reference numerals:

[0039] 10. Fixing plate; 11. Positioning groove;

[0040] 20. Shell; 21. Installation cavity; 211. First installation section; 212. Second installation section; 213. Limiting plane; 22. Fitting arc surface; 23. Avoidance hole;

[0041] 30. inner core of suction head; 31. sliding part; 311. air pipe interface; 32. suction head; 321. adsorption hole; 33. guide column;

[0042] 40. Spring;

[0043] 50. Positioning seat;

[0044] 60. Products;

[0045] 70. Adhesive backing. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0047] Combine the following Figures 1 to 8 , describing an embodiment of the utility model.

[0048] According to an embodiment of the utility model, on the one hand, a curved film-applying nozzle is provided, comprising:

[0049] Fixed plate 10;

[0050] The housing 20 can be connected to the fixing plate 10 by bolts and / or screws, and a mounting cavity 21 is provided on the housing 20; a fitting arc surface 22 is provided at one end of the housing 20 away from the fixing plate 10 in the height direction, and the fitting arc surface 22 is suitable for fitting with the arc surface of the product;

[0051] The suction head inner core 30 is movably disposed in the mounting cavity 21, and one end of the suction head inner core 30 away from the fixing plate 10 in the height direction is suitable for extending from the mounting cavity 21 and sucking the adhesive;

[0052] The spring 40 has one end along the height direction abutting against the suction head inner core 30 , and the other end abutting against the fixing plate 10 . The spring 40 is suitable for abutting against and making the suction head inner core 30 extend from the fitting arc surface 22 .

[0053] It should be noted that the fixed plate 10 can be relatively fixed to the lifting mechanism of the fixture, so that the curved film sticking head can be driven to move back and forth in the height direction through the lifting mechanism. The lifting mechanism can be driven by an electric push rod or a cylinder, and can be adjusted according to actual production conditions.

[0054] The curved film-sticking suction head provided in this embodiment mainly includes a fixing plate 10, a shell 20, a suction head inner core 30 and a spring 40, wherein the shell 20 is detachably connected to the fixing plate 10, the suction head inner core 30 is slidably arranged in the mounting cavity 21 of the shell 20, one end of the spring 40 along the height direction abuts against the suction head inner core 30, and the other end abuts against the fixing plate 10; by arranging the suction head inner core 30, the suction head inner core 30 extends from the mounting cavity 21 along the height direction toward a direction away from the fixing plate 10 and absorbs the back glue 70; by arranging the spring 40, when the suction head inner core 30 adsorbs the back glue and contacts the product 60, Under the resistance of the product 60, the spring 40 is compressed, and the shell 20 continues to approach the product 60 in the height direction relative to the suction head inner core 30 until the fitting arc surface 22 of the shell 20 is completely fitted with the arc surface of the product 60; by providing the fitting arc surface 22 on the shell 20, the adhesive 70 at the top of the suction head inner core 30 is pushed out and attached to the arc surface of the product 60 through the fitting arc surface 22 during film application, and at the same time, the fitting arc surface 22 is pressed vertically downward to completely fit the adhesive 70 with the arc surface of the product 60, so that the concave arc surface of the product is fitted in place in one action, the accuracy of film application on the arc surface is improved, and the adhesive is prevented from being pressed off during the secondary pressing.

[0055] In some embodiments, see Figure 3 As shown, the suction head inner core 30 includes a sliding portion 31 and a suction head 32. The sliding portion 31 is suitable for reciprocating along the height direction in the installation cavity 21, and the suction head 32 is suitable for extending from the fitting arc surface 22 along the height direction and sucking the back glue.

[0056] In this embodiment, the suction head inner core 30 includes a sliding portion 31 and a suction head portion 32, and the sliding portion 31 is in contact with the spring 40 on the side away from the suction head portion 32 in the height direction; after the suction head portion 32 absorbs the adhesive, the curved film suction head moves to the top of the product 60, and the curved film suction head moves downward in the height direction. When the suction head portion 32 absorbs the adhesive 70 and abuts against the product 60, it is resisted by the product 60, and the suction head inner core 30 stops moving downward, and the shell 20 continues to move downward in the height direction. The spring 40 is compressed due to the upward movement of the sliding portion 31 relative to the shell 20, and the fitting curved surface 22 is vertically pressed downward to completely fit the adhesive 70 with the curved surface of the product 60, thereby achieving one-time fitting of the concave curved surface of the product; when the curved film suction head is away from the product 60 in the height direction, the fitting curved surface 22 is separated from the adhesive 70, and the suction head portion 32 is separated from the adhesive 70, and the spring 40 resets the suction head inner core 30 through its own elastic restoring force.

[0057] In some embodiments, see Figure 4 As shown, the mounting cavity 21 includes a first mounting section 211 and a second mounting section 212. Figure 3 As shown, the first mounting section 211 is suitable for limiting the position of the sliding portion 31 , and the second mounting section 212 is suitable for guiding and limiting the position of the suction head portion 32 .

[0058] In this embodiment, by providing the first mounting section 211, on the one hand, the sliding portion 31 and the spring 40 can be accommodated, and on the other hand, the sliding portion 31 can be limited so that the sliding portion 31 only moves back and forth in a straight line along the height direction; by providing the second mounting section 212, the suction head portion 32 is guided and limited so that the suction head portion 32 only moves back and forth in a straight line along the height direction, thereby preventing the suction head inner core 30 from deflecting and / or shifting in the mounting cavity 21, thereby ensuring the accuracy of the suction head portion 32 in adsorbing and grasping the backing glue 70, and improving the accuracy of film sticking.

[0059] In some embodiments, see Figure 4 As shown, a limited position plane 213 is set between the first installation section 211 and the second installation section 212. Figure 3 As shown, the limiting plane 213 is suitable for abutting against a side of the sliding portion 31 away from the fixing plate 10 along the height direction.

[0060] In this embodiment, a limiting plane 213 is provided to limit the sliding part 31 in the height direction through the limiting plane 213 to prevent the sliding part 31 from being separated from the first mounting section 211. At the same time, the limiting plane 213 abuts against the sliding part 31 to ensure that the spring 40 is in a compressed state between the sliding part 31 and the fixed plate 10, thereby preventing the spring 40 from being dislocated due to being too loose.

[0061] In some embodiments, see Figure 3 As shown, the suction head inner core 30 further includes a guide post 33 , which is fixedly disposed on one side of the sliding portion 31 close to the fixed plate 10 along the height direction. The guide post 33 is coaxially disposed with the spring 40 , and the guide post 33 is suitable for limiting the spring 40 .

[0062] Furthermore, there are multiple guide pillars 33 and springs 40, and multiple guide pillars 33 are evenly and symmetrically arranged on one side of the sliding part 31 close to the fixed plate 10 along the height direction. Each guide pillar 33 is coaxially arranged with each spring 40, thereby ensuring uniform force application during the film pressing process.

[0063] In this embodiment, a guide column 33 is provided to sleeve the spring 40 on the guide column 33, thereby limiting and guiding the spring 40, ensuring that the spring 40 always remains coaxial with the guide column 33 during the extension and retraction process, thereby preventing the spring 40 from becoming unstable between the sliding portion 31 and the fixed plate 10.

[0064] In some embodiments, see Figure 3 As shown, the distance between the end of the guide column 33 away from the sliding part 31 in the height direction and the fixed plate 10 is greater than the distance that the suction head 32 extends from the fitting arc surface 22, thereby ensuring that the fitting arc surface 22 is completely fitted with the back glue 70 when pressed vertically downward, thereby ensuring that the back glue 70 is completely fitted with the arc surface of the product 60.

[0065] In some embodiments, see Figure 3 As shown, a plurality of adsorption holes 321 are provided on one side of the suction head 32 away from the fixing plate 10 in the height direction, and the adsorption holes 321 are suitable for negative pressure adsorption of the adhesive.

[0066] An air pipe interface 311 is provided on the sliding portion 31 . The air pipe interface 311 is connected to each adsorption hole 321 . The air pipe interface 311 is suitable for being connected to an external negative pressure air pipe.

[0067] In this embodiment, a plurality of adsorption holes 321 are provided on the suction head portion 32 so as to perform negative pressure adsorption on the adhesive 70 through the adsorption holes 321, thereby separating the adhesive 70 from the unwound adhesive roll and placing it at a designated position on the product 60; an air pipe interface 311 is provided on the sliding portion 31, so as to connect each adsorption hole 321 with an external negative pressure air pipe through the air pipe interface 311, thereby achieving negative pressure adsorption of the adhesive 70 by the suction head portion 32.

[0068] In some embodiments, please combine Figure 4 and Figure 5 As shown, an avoidance hole 23 is opened on the side wall of the shell 20, and the avoidance hole 23 is suitable for avoiding the trachea interface 311, so as to facilitate the docking of the external negative pressure trachea with the trachea interface 311, and at the same time avoid the side wall of the shell 20 from interfering with the external negative pressure trachea during the movement of the sliding part 31.

[0069] In some embodiments, see Figure 6 As shown, the fixing plate 10 has a positioning groove 11 on one side close to the housing 20 in the height direction. Figure 1 As shown, the positioning groove 11 is suitable for positioning the housing 20, so as to facilitate accurate positioning and installation of the fixing plate 10 and the housing 20.

[0070] According to an embodiment of the present invention, on the other hand, see Figure 8 As shown, a film sticking jig is also provided, comprising: a positioning seat 50, and the curved film sticking suction head as described above.

[0071] In this embodiment, the positioning seat 50 is provided to position the product 60; the above-mentioned curved film sticking nozzle is provided to adsorb the adhesive 70 and move it to the designated curved surface position on the product 60. When the nozzle inner core 30 adsorbs the adhesive 70 and abuts against the product 60, the nozzle inner core 30 stops moving downward, and the shell 20 continues to move downward in the height direction under the pushing action of the fixing plate 10. During this process, the spring 40 is gradually compressed, and the fitting curved surface 22 is pressed vertically downward to make the adhesive 70 and the curved surface of the product 60 completely fit, thereby achieving one-time fitting of the concave curved surface of the product; when the curved film sticking nozzle moves away from the product 60 in the height direction, the fitting curved surface 22 is separated from the adhesive 70, the nozzle inner core 30 is separated from the adhesive 70, and the spring 40 completes the reset of the nozzle inner core 30 in the shell 20 through its own elastic restoring force.

[0072] The film sticking jig in the present solution includes the above-mentioned curved film sticking suction head, and therefore, the film sticking jig in the present solution includes all the beneficial effects of the above-mentioned curved film sticking suction head.

[0073] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A curved film-sticking nozzle, characterized in that: include: A fixing plate (10); A shell (20) is detachably connected to the fixing plate (10), and a mounting cavity (21) is provided on the shell (20); an end of the shell (20) away from the fixing plate (10) in the height direction is provided with a fitting arc surface (22), and the fitting arc surface (22) is suitable for fitting with the arc surface of the product; The suction head inner core (30) is movably arranged in the installation cavity (21), and one end of the suction head inner core (30) away from the fixing plate (10) in the height direction is suitable for extending from the installation cavity (21) and sucking the adhesive; A spring (40) has one end in the height direction abutting against the suction head inner core (30) and the other end abutting against the fixing plate (10), and the spring (40) is suitable for abutting against and causing the suction head inner core (30) to extend from the fitting arc surface (22).

2. The curved film-sticking nozzle according to claim 1, characterized in that: The suction head inner core (30) comprises a sliding portion (31) and a suction head portion (32), wherein the sliding portion (31) is adapted to reciprocate in the installation cavity (21) along a height direction, and the suction head portion (32) is adapted to extend from the fitting curved surface (22) along a height direction and absorb the back adhesive.

3. The curved film-applying nozzle according to claim 2, characterized in that: The mounting cavity (21) comprises a first mounting section (211) and a second mounting section (212); the first mounting section (211) is suitable for limiting the position of the sliding portion (31); and the second mounting section (212) is suitable for guiding and limiting the position of the suction head portion (32).

4. The curved film-applying nozzle according to claim 3, characterized in that: A limiting plane (213) is provided between the first mounting section (211) and the second mounting section (212), and the limiting plane (213) is suitable for abutting against a side of the sliding portion (31) away from the fixing plate (10) along the height direction.

5. The curved film-applying nozzle according to claim 2, characterized in that: The suction head inner core (30) further comprises a guide column (33), wherein the guide column (33) is fixedly arranged on a side of the sliding portion (31) close to the fixed plate (10) in the height direction, and the guide column (33) is coaxially arranged with the spring (40), and the guide column (33) is suitable for limiting the spring (40).

6. The curved film-applying nozzle according to claim 5, characterized in that: The distance between one end of the guide column (33) away from the sliding portion (31) in the height direction and the fixing plate (10) is greater than the distance that the suction head portion (32) extends from the fitting arc surface (22).

7. The curved film-applying nozzle according to claim 2, characterized in that: A plurality of adsorption holes (321) are provided on a side of the suction head (32) away from the fixing plate (10) in the height direction, and the adsorption holes (321) are suitable for negative pressure adsorption of the backing glue; The sliding portion (31) is provided with an air pipe interface (311), the air pipe interface (311) is connected to each of the adsorption holes (321), and the air pipe interface (311) is suitable for being connected to an external negative pressure air pipe.

8. The curved film-applying nozzle according to claim 7, characterized in that: A evacuation hole (23) is provided on the side wall of the housing (20), and the evacuation hole (23) is suitable for evading the trachea interface (311).

9. The curved film-applying nozzle according to any one of claims 1 to 8, characterized in that: A positioning groove (11) is provided on one side of the fixing plate (10) close to the housing (20) in the height direction, and the positioning groove (11) is suitable for positioning the housing (20).

10. A film sticking jig, characterized in that: include: A positioning seat (50), and a curved film-applying nozzle as claimed in any one of claims 1 to 9.

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