A grommet processing ear pulling and folding device

Abstract

This application relates to the field of gasket processing technology, and in particular to a pull-ear reversing device for processing sealing gaskets. The device includes a frame, a push column, and a bending seat. The bending seat has an aluminum foil cavity adapted to an aluminum foil layer and a pull-ear cavity adapted to a pull-ear. The bottom inner wall of the pull-ear cavity is higher than the bottom inner wall of the aluminum foil cavity, forming a bending surface on the inner wall of the aluminum foil cavity near the pull-ear cavity. The push column is adapted to slide and insert into the aluminum foil cavity to press the aluminum foil layer. The cut aluminum foil is placed entirely within the bending seat cavity, with its front facing the push column. The aluminum foil layer is located in the aluminum foil cavity, and the pull-ear is located in the pull-ear cavity. The push column moves downward and inserts into the aluminum foil cavity, causing the aluminum foil layer to abut against the bottom inner wall of the aluminum foil cavity. Simultaneously, the pull-ear bends upward under the combined action of the bending surface and the outer wall of the push column. Subsequently, the push column moves upward and returns to its original position, forming a crease at the connection between the pull-ear and the aluminum foil layer, effectively reducing the possibility of the pull-ear bending downward.

Description

Technical Field

[0001] This application relates to the field of gasket processing technology, and in particular to a pull-ear reversing device for processing sealing gaskets. Background Technology

[0002] Bottled foods need to be sealed after processing, and sealing gaskets are usually used for this purpose. Sealing gaskets typically consist of a cardboard layer, an adhesive wax layer, an aluminum foil layer, and a sealing layer, laminated together from top to bottom. Sealing film layer. When using the sealing gasket, first insert the gasket into the bottle cap, then screw the cap tightly onto the bottle neck, ensuring a tight contact between the sealing film layer and the upper surface of the bottle neck. Then, use an electromagnetic induction sealing machine for localized sealing. After sealing, the adhesive wax layer loses its stickiness due to heating, and the aluminum foil layer and cardboard automatically separate. The aluminum foil layer seals the bottle neck, while the cardboard remains on the inner wall of the cap.

[0003] Reference Figure 6 To facilitate the user in tearing off the aluminum foil layer 10 at the bottle opening, the aluminum foil layer 10 has an integrally protruding pull tab. However, since the pull tab protrudes from one side of the aluminum foil layer 10, it is prone to bending. When the pull tab bends upward (front), it does not affect the subsequent sealing. However, when the pull tab bends downward (back), the pull tab that should be exposed during the subsequent sealing process cannot be exposed, thus affecting the use of the pull tab after sealing. Therefore, further improvement is needed. Utility Model Content

[0004] To reduce the possibility of the pull tab bending downwards, this application provides a pull tab reversal device for processing sealing gaskets.

[0005] The technical solution provided in this application for a pull-ear reversing device for processing sealing gaskets is as follows: A sealing gasket processing pull-ear reversing device includes a frame, the frame is provided with a push column and a bending seat, the bending seat has an aluminum foil cavity adapted to an aluminum foil layer and a pull-ear cavity adapted to a pull-ear, the bottom inner wall of the pull-ear cavity is higher than the bottom inner wall of the aluminum foil cavity, so that the inner wall of the aluminum foil cavity near the pull-ear cavity forms a bending surface, and the push column is adapted to slide and insert into the aluminum foil cavity to press the aluminum foil layer.

[0006] By adopting the above technical solution, the cut aluminum foil is placed in the inner cavity of the bending seat with the front facing the push column. The aluminum foil layer is located in the aluminum foil cavity, and the pull lug is located in the pull lug cavity. The push column is moved down and inserted into the aluminum foil cavity so that the aluminum foil layer abuts against the bottom inner wall of the aluminum foil cavity. At the same time, the pull lug bends upward under the combined action of the bending surface and the outer wall of the push column. Then the push column moves up and resets, so that a crease is formed at the connection between the pull lug and the aluminum foil layer, effectively reducing the possibility of the pull lug bending downward.

[0007] Preferably, a storage groove is provided on the lower part of the inner wall of the pull ear cavity away from the aluminum foil cavity, the bending seat is provided with a reverse folding block built into the storage groove, and the bending seat is provided with a reverse folding drive component that drives the reverse folding block to slide towards the aluminum foil cavity.

[0008] By adopting the above technical solution, the anti-folding block is normally retracted into the storage groove. After the push column moves up and resets, the anti-folding drive component drives the anti-folding block to slide towards the aluminum foil cavity, so that the anti-folding block abuts against the free end of the pull lug. When the anti-folding block slides above the aluminum foil layer, the free end of the pull lug bends towards the aluminum foil layer, increasing the bending angle of the pull lug and better reducing the possibility of the pull lug bending downward.

[0009] Preferably, the anti-folding drive component is a first cylinder.

[0010] By adopting the above technical solution, the sliding of the anti-folding block is achieved by extending and retracting the piston rod of the first cylinder.

[0011] Preferably, the bending seat is provided with a support platform that slides vertically to the inner wall of the aluminum foil cavity, and the aluminum foil layer abuts against the upper end face of the support platform.

[0012] By adopting the above technical solution, in the initial state, the upper end face of the support is flush with the bottom inner wall of the lug cavity, reducing the possibility of the aluminum foil layer tilting. When the push column moves down, the support follows the push column down, so that the bending surface is exposed to perform bending operations on the lug.

[0013] Preferably, the bending seat is provided with a lifting drive component for driving the platform to rise and fall.

[0014] Preferably, the lifting drive component is a second cylinder.

[0015] By adopting the above technical solution, the sliding of the support platform is achieved by extending and retracting the piston rod of the second cylinder.

[0016] Preferably, the support has an adsorption chamber, an adsorption hole is provided on the upper end surface of the support, and the bending seat is provided with an air extraction component for extracting air from the adsorption chamber.

[0017] By adopting the above technical solution, the air extraction component extracts air from the adsorption chamber, and the aluminum foil layer can be firmly adsorbed onto the upper surface of the support through the adsorption holes, ensuring the stability of the aluminum foil layer during the processing and further ensuring the pull-ear folding effect.

[0018] Preferably, the air extraction assembly includes an air extraction pipe connected to the adsorption chamber and an air extraction pump connected to the air extraction pipe. The air extraction pipe is a flexible tube, and the air extraction pump is fixed to the bending seat.

[0019] By adopting the above technical solution, the air extraction component extracts air from the adsorption chamber of the support platform through the air extraction pipe and the air extraction pump. The adsorption holes can adsorb the aluminum foil layer, and the air extraction pipe is a flexible tube to facilitate the lifting and lowering of the support platform.

[0020] In summary, this utility model has the following beneficial effects: 1. Place the cut aluminum foil into the inner cavity of the bending seat with the front facing the push post. The aluminum foil layer is located in the aluminum foil cavity, and the pull lug is located in the pull lug cavity. The push post is moved down and inserted into the aluminum foil cavity so that the aluminum foil layer abuts against the bottom inner wall of the aluminum foil cavity. At the same time, the pull lug bends upward under the combined action of the bending surface and the outer wall of the push post. Then the push post moves up and resets, so that a crease is formed at the connection between the pull lug and the aluminum foil layer, effectively reducing the possibility of the pull lug bending downward. 2. Under normal conditions, the folding block is retracted into the storage groove. After the push column moves up and resets, the folding block is driven by the folding drive to slide towards the aluminum foil cavity, so that the folding block abuts against the free end of the pull lug. When the folding block slides above the aluminum foil layer, the free end of the pull lug bends towards the aluminum foil layer, increasing the bending angle of the pull lug and better reducing the possibility of the pull lug bending downward. 3. The support has an adsorption chamber, and an adsorption hole is provided on the upper end face of the support. The bending seat is provided with an air extraction component for extracting air from the adsorption chamber. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a pull-ear reversing device for processing sealing gaskets in Example 1; Figure 2 This is a schematic diagram of the bending seat and punching column in Example 1; Figure 3 This is a schematic diagram of the internal structure of the bending seat in Example 1; Figure 4 This is a schematic diagram of the pull tabs of the aluminum foil layer in Example 1. Figure 5 This is a schematic diagram of the overall structure of a pull-ear reversing device for processing sealing gaskets in Embodiment 2; Figure 6 This is a schematic diagram of the aluminum foil layer in the background technology.

[0022] In the diagram, 10 is the aluminum foil layer; 1 is the frame; 11 is the cutting table; 2 is the mounting plate; 21 is the punching column; 22 is the push column; 3 is the longitudinal slide table; 4 is the bending seat; 41 is the punching blade; 42 is the aluminum foil cavity; 43 is the pull lug cavity; 44 is the second cylinder; 45 is the anti-folding block; 46 is the first cylinder; 5 is the support platform; 51 is the adsorption chamber; 52 is the adsorption hole; 6 is the air extraction assembly; 61 is the air extraction pipe; and 62 is the air extraction pump. Detailed Implementation

[0023] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0024] Example 1: This application discloses a pull tab reversal device for processing sealing gaskets, referring to... Figure 1 , Figure 2 The system includes a frame 1, with a cutting table 11 fixedly connected to the frame 1. Aluminum foil strip is conveyed on the cutting table 11, which has a through hole. A mounting plate 2 is provided above the cutting table 11. In this embodiment, the mounting plate 2 is slidably connected to the frame 1 laterally, and the frame 1 drives the mounting plate 2 to slide via a leverless cylinder. A punching post 21 and a pushing post 22, passing through the through hole, are vertically slidably connected below the mounting plate 2. Both the punching post 21 and the pushing post 22 are located directly above the aluminum foil strip. In this embodiment, the punching post 21 and the pushing post 22 are distributed laterally on the mounting plate 2, and the mounting plate 2 drives the punching post 21 and the pushing post 22 to slide individually via a cylinder.

[0025] Reference Figure 2 , Figure 3 The frame 1 is longitudinally slidably connected to a longitudinal slide table 3 located below the cutting table 11. The frame 1 drives the longitudinal slide table 3 to slide via a rodless cylinder. Above the longitudinal slide table 3, a bending seat 4 with its upper part passing through a through hole is vertically slidably connected. The longitudinal slide table 3 drives the bending seat 4 to rise and slide via a cylinder. The upper end of the bending seat 4 has a punching blade 41. The upper end surface of the bending seat 4 has a foil cavity 42 adapted to the aluminum foil layer 10 and a pull ear cavity 43 adapted to the pull ear. The bottom inner wall of the pull ear cavity 43 is higher than the bottom inner wall of the aluminum foil cavity 42, so that the inner wall of the aluminum foil cavity 42 near the pull ear cavity 43 forms a bending surface. The punching column 21 and the punching blade 41 slide in the same direction to perform punching operations on the aluminum foil strip. The punched aluminum foil layer 10 falls into the aluminum foil cavity 42, and the push column 22 is adapted to be inserted into the aluminum foil cavity 42.

[0026] The bending seat 4 is provided with a support platform 5 that slides vertically along the inner wall of the aluminum foil cavity 42. In this embodiment, the bending seat 4 is provided with a lifting drive for driving the support platform 5 to rise and fall. In this embodiment, the lifting drive is a second cylinder 44. The cylinder body of the second cylinder 44 is fixedly connected to the bending seat 4, and the piston rod of the second cylinder 44 passes through the bottom wall of the bending seat 4 and is fixedly connected to the support platform 5. In other embodiments, the lifting drive is an electric cylinder. The support platform 5 has an adsorption cavity 51, and an adsorption hole 52 is provided on the upper end surface of the support platform 5. The bending seat 4 is provided with an air extraction assembly 6 for extracting air from the adsorption cavity 51. The air extraction assembly 6 includes an air extraction pipe 61 connected to the adsorption chamber 51 and an air extraction pump 62 connected to the air extraction pipe 61. The air extraction pipe 61 is located below the support 5 and passes through the bottom wall of the aluminum foil cavity 42. The air extraction pipe 61 is a flexible tube. Specifically, the air extraction pipe 61 can be a corrugated telescopic tube. The air extraction pump 62 is fixed to the lower end face of the bending seat 4.

[0027] A storage groove is provided on the lower part of the inner wall of the pull-ear cavity 43 on the side away from the aluminum foil cavity 42. The bending seat 4 is provided with a reversing block 45 built into the storage groove. The bending seat 4 is provided with a reversing drive component that drives the reversing block 45 to slide towards the aluminum foil cavity 42. The reversing drive component is a first cylinder 46. The cylinder body of the first cylinder 46 is fixedly connected to the outside of the bending seat 4, and the piston rod of the first cylinder 46 is fixedly connected to the reversing block 45.

[0028] The implementation principle of this application embodiment is as follows: Under normal conditions, both the punching column 21 and the bending seat 4 are in the punching position, and the upper end face of the support 5 is flush with the bottom inner wall of the pull lug cavity 43. The punching column 21 and the punching cutting blade 41 slide in the same direction to punch the aluminum foil strip. The punched aluminum foil layer 10 falls into the inner cavity of the bending seat 4 under its own weight or negative pressure (the front of the aluminum foil layer 10 faces upward), that is, the aluminum foil layer 10 is located in the aluminum foil cavity 42, and the pull lug is located in the pull lug cavity 43. After punching, the punching column 21 and the bending seat 4 slide in opposite directions to reset, and the mounting plate 2 slides so that the push column 22 is located directly above the through hole. As the pusher column 22 moves downward through the through hole and is inserted into the aluminum foil cavity 42, the support platform 5 moves downward, causing the bending surface to gradually increase. Under the combined action of the bending surface and the outer wall of the pusher column 22, the pull lug bends upward. Subsequently, the pusher column 22 moves upward and resets, and the support platform 5 moves upward until the upper end face of the aluminum foil layer 10 is slightly lower than the lower end face of the anti-bending block 45. The anti-bending drive drives the anti-bending block 45 to slide towards the aluminum foil cavity 42, so that the anti-bending block 45 abuts against the free end of the pull lug, and the anti-bending block 45 slides above the aluminum foil layer 10, causing the free end of the pull lug to bend towards the aluminum foil layer 10 (see reference). Figure 4 This increases the bending angle of the pull tab, further reducing the possibility of the pull tab bending downwards. After the reverse fold is completed, the reverse fold block 45 resets, and the longitudinal slide table 3 slides to the discharge station, where the aluminum foil layer 10 in the aluminum foil cavity 42 can be adsorbed and discharged by the adsorption robot.

[0029] Example 2: The difference from Example 1 is that, referring to Figure 5 Mounting plate 2 is fixedly connected to frame 1. Punching column 21 and push column 22 are distributed longitudinally on mounting plate 2. Punching column 21 is located directly above aluminum foil strip, and push column 22 is located outside aluminum foil strip. After punching by punching column 21, longitudinal slide table 3 slides to the corresponding position of bending seat 4 and push column 22 (bending station) for bending operation. After bending is completed, longitudinal slide table 3 continues to slide to discharge station.

[0030] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A pull ear folding apparatus for gasketing processing, characterized by: The frame (1) includes a push column (22) and a bending seat (4). The bending seat (4) has an aluminum foil cavity (42) adapted to the aluminum foil layer (10) and a pull ear cavity (43) adapted to the pull ear. The bottom inner wall of the pull ear cavity (43) is higher than the bottom inner wall of the aluminum foil cavity (42), so that the inner wall of the aluminum foil cavity (42) near the pull ear cavity (43) forms a bending surface. The push column (22) is adapted to slide and insert into the aluminum foil cavity (42) to press the aluminum foil layer (10).

2. A device for folding back the ears of a gasket for sealing a port according to claim 1, characterized in that: The lower part of the inner wall of the pull ear cavity (43) away from the aluminum foil cavity (42) is provided with a storage groove. The bending seat (4) is provided with a reverse folding block (45) built into the storage groove. The bending seat (4) is provided with a reverse folding drive component that drives the reverse folding block (45) to slide towards the aluminum foil cavity (42).

3. A device for folding back the ears of a gasket for sealing a port according to claim 2, characterized in that: The anti-folding drive component is the first cylinder (46).

4. The device according to claim 2, wherein: The bending seat (4) is provided with a support (5) that slides vertically to the inner wall of the aluminum foil cavity (42), and the aluminum foil layer (10) abuts against the upper surface of the support (5).

5. A device for folding back the ears of a gasket for sealing a port according to claim 4, wherein: The bending seat (4) is equipped with a lifting drive component that drives the lifting of the bearing platform (5).

6. A device for folding back the ears of a gasket for sealing a port according to claim 5, characterized in that: The lifting drive component is the second cylinder (44).

7. A device for folding back the ears of a gasket for sealing a port according to claim 4, wherein: The support (5) has an adsorption chamber (51), and an adsorption hole (52) is provided on the upper end surface of the support (5). The bending seat (4) is provided with an air extraction component (6) for extracting air from the adsorption chamber (51).

8. A device for folding back the ears of a gasket for sealing a port according to claim 7, characterized in that: The air extraction assembly (6) includes an air extraction pipe (61) connected to the adsorption chamber (51) and an air extraction pump (62) connected to the air extraction pipe (61). The air extraction pipe (61) is a flexible hose, and the air extraction pump (62) is fixed to the bending seat (4).

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