Film sleeving device of zipper pull film coating equipment

Abstract

The utility model discloses a film sleeving device of zipper pull film coating equipment, which comprises a rack, and a film sleeving station and a film taking station are arranged on the rack; the film sleeving station is provided with a zipper head clamping piece, the zipper head clamping piece is provided with a clamping opening used for enabling a zipper head to face downwards, a supporting claw with a supporting power source is connected between the film sleeving station and the film taking station, and the supporting claw is in transmission connection with a feeding driving assembly driving the supporting claw to move up and down and rotate. The supporting claw has a film taking state and a film sleeving state, and when the supporting claw is in the film taking state, the feeding driving assembly drives the supporting claw to take a film downwards; when the supporting claws are in the film sleeving state, the feeding driving assembly drives the supporting claws to sleeve a film upwards. The zipper puller is positioned through the zipper puller clamping piece, the zipper pulls are naturally hung, the supporting claws face downwards to feed film materials, then the supporting claws are opened to enable the film materials to be fixed to the supporting claws, rotate upwards and move upwards, the zipper pulls enter the supporting claws, automatic film sleeving is completed, production efficiency is improved, and labor cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of sheet packaging, and in particular to a film-wrapping device for sheet packaging equipment. Background Technology

[0002] Zipper pulls, a key component of zippers, are gripped by users to open and close the zipper. However, during packaging and transportation, multiple zipper pulls may rub against each other, causing scratches on the pull surface. This not only affects the product's appearance but can also negatively impact the consumer's user experience. To solve this problem, a plastic wrapping process is usually applied to the outer surface of the pull.

[0003] Currently, the film coating process for sheet pulling mainly relies on manual operation. This method is labor-intensive and inefficient, making it difficult to meet the needs of large-scale production. Therefore, how to achieve automated film coating to ensure accurate insertion of the sheet into the film material has become an urgent problem to be solved. Summary of the Invention

[0004] This invention addresses the shortcomings of existing technologies by providing a film-wrapping device for a zipper pull sheet wrapping equipment that enables the pull sheet to enter the film material and achieves automated film wrapping of the zipper pull sheet.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a film-coating device for a film-coating machine, comprising a frame, wherein a film-coating station and a film-retrieving station are provided on the frame; a zipper head holder is provided on the film-coating station, the zipper head holder having a notch for the zipper head to make the film face downwards; a support claw with a power source for opening is connected between the film-coating station and the film-retrieving station, the support claw being driven by a feeding drive assembly that drives it to move up and down and rotate; the support claw has a film-retrieving state and a film-coating state; when the support claw is in the film-retrieving state, the feeding drive assembly drives the support claw to retrieve the film downwards; when the support claw is in the film-coating state, the feeding drive assembly drives the support claw to coat the film upwards.

[0006] The zipper head holder of this utility model positions the zipper head, allowing the zipper tab to hang naturally. The support claws face downwards and the film material is applied. Then, the support claws open to fix the film material on the support claws. The zipper head rotates upwards and moves upwards, allowing the zipper tab to enter the support claws, thus completing the automated film application, improving production efficiency and reducing labor costs.

[0007] Preferably, the film-taking station is also equipped with a film material opening mechanism, which is located below the support claw. The film material opening mechanism includes a suction cup assembly, comprising a front suction cup and a rear suction cup arranged opposite each other. The front and rear suction cups are connected to a power source that drives their symmetrical movement. When the suction cup assembly is working, the front and rear suction cups cooperate to open the material, creating a receiving cavity within the material for the support claw to insert and take it out. The suction cup assembly adsorbs both sides of the film material, with the front and rear suction cups moving away from each other to open the film material, creating a receiving cavity within the film material for easy material taking by the support claw.

[0008] Furthermore, the frame has a film material outlet, which is located below the film material opening mechanism. A film material cutter is located between the film material opening mechanism and the film material outlet, and the film material cutter is kinetically connected to a cutting drive that drives its back-and-forth movement. The film material cutter cuts the film material for the support claws to pick up.

[0009] Preferably, the feeding drive assembly includes a lifting seat, a rotary drive component, and a lifting drive component. The lifting seat is connected to the lifting drive component, the support claw is rotatably mounted on the lifting seat, and the rotary drive component is drive-connected to the support claw.

[0010] Preferably, the frame has a mounting rod, and the zipper head retainer is located at the upper end of the mounting rod; a positioning clamp with a power source is provided above the mounting rod, and the positioning clamp is used to clamp the positioning mounting rod. By clamping the mounting rod with the positioning clamp, the impact of vibration generated during the operation of the equipment on the zipper head is effectively reduced, ensuring that the zipper pull tab is stably facing downwards.

[0011] Preferably, a support block with a vertical surface is provided below the zipper head holder, and a demolding block is provided on the opposite side of the support block. The demolding block is connected to a film-pressing power source that drives it to perform the film-pressing action. During demolding, the demolding block and the support block cooperate to position the material so that the support claw can reset. The demolding block presses the material onto the support block, positions the pull tab and film material, and ensures that the support claw can retract stably and exit stably, thus ensuring the film-making qualification rate.

[0012] Furthermore, the support block has a positioning groove for placing the zipper pull tab. The zipper pull tab is placed within the positioning groove, effectively preventing significant wobbling of the pull tab during operation, thereby further improving the zipper's pass rate.

[0013] Preferably, an elastic baffle is provided below the zipper pull holder, and the elastic baffle is connected to a power source that drives the membrane to move up and down. The elastic baffle prevents the support claw from rising, and after the support claw returns to its original position, the elastic baffle can support the membrane, further preventing it from falling. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the demolding block of this utility model.

[0016] Figure 3 This is a partial enlarged view of the demolding block structure of this utility model.

[0017] Figure 4 This is a schematic diagram of the membrane material opening mechanism of this utility model.

[0018] The names of the body parts referred to by the numbers in the above attached diagrams are as follows:

[0019] The components include: 1. Frame; 11. Mounting rod; 2. Zipper head holder; 3. Support claw; 4. Film opening mechanism; 41. Front suction cup; 42. Rear suction cup; 5. Feeding drive assembly; 51. Lifting seat; 52. Rotation drive component; 6. Support block; 61. Positioning groove; 7. Elastic baffle; 8. Demolding pressure block; 91. Zipper head; 92. Pull tab. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0021] A film-coating device for a film-coating machine includes a frame 1, on which a film-coating station and a film-removing station are provided; the film-coating station is provided with a zipper head holder 2, which has a slot for the zipper head 91 to make the pull tab 92 face downwards, and the zipper head 91 is positioned in the slot. The zipper head holder 2 can be a card without a power source, and the zipper head 91 is hung on the zipper head holder 2. The zipper head holder 2 can also have a power source, such as a clamp, and the opening between the clamps is the slot. After the zipper head 91 enters the slot, it is clamped and positioned. A support claw 3 with an opening power source connects the film-applying station and the film-receiving station. The support claw 3 includes a left support plate and a right support plate. The opening power source drives the left and right support plates to open and close. The support claw 3 is connected to a feeding drive assembly 5 that drives its up-and-down movement and rotation. In this embodiment, the feeding drive assembly 5 includes a lifting seat 51, a rotation drive component 52, and a lifting drive component. The lifting seat 51 is connected to the lifting drive component. The support claw 3 is rotatably mounted on the lifting seat 51. The rotation drive component 52 is connected to the support claw 3. The power source of the rotation drive component 52 is preferably a servo motor. Alternatively, the feeding drive assembly 5 can also be a cam structure to achieve flipping during the up-and-down movement of the support claw 3. The support claw 3 has a film-grabbing state and a film-applying state. When the support claw 3 is in the film-grabbing state, the feeding drive component 5 drives the support claw 3 downward to grab the film. When the support claw 3 is downward, the film material can be manually applied, or a film material feeding device can be set below the support claw 3 to automatically convey the film material. The film-grabbing station is also equipped with a film material opening mechanism 4, which is located below the support claw 3. The film material opening mechanism 4 includes a suction cup assembly. The film-grabbing station is also equipped with a film material feeding device, and the suction cup assembly is located between the support claw 3 and the film material feeding device. Between the devices, the suction cup assembly includes a front suction cup 41 and a rear suction cup 42 arranged opposite to each other. The front suction cup 41 and the rear suction cup 42 are connected to an opening and closing power source that drives their symmetrical movement. The frame has a film material outlet, which is located below the film material opening mechanism. A film material cutter is located between the film material opening mechanism and the film material outlet. The film material cutter is connected to a cutting drive that drives its back and forth movement. The cutter is slidably mounted on a guide rail, which is arranged on both sides of the film material outlet along the back and forth direction. The film material feeding device is existing technology, which feeds the film material vertically to the film material outlet. The cutter cuts the film material into the corresponding specifications. The front suction cup 41 and the rear suction cup 42 respectively adsorb the two sides of the film material, and the two move away from each other to open the film material, which facilitates the support claw 3 to pick up the material, further improving the level of automation. When the support claw 3 is in the film-covering state, the feeding drive assembly 5 drives the support claw 3 to face upwards to cover the film. Specifically, the zipper head holding member 2 is located above the support claw 3. The support claw 3 moves upwards to allow the pull tab 92 to enter the receiving cavity.

[0022] To position the pull tab 92, the frame 1 has a mounting rod 11, the zipper head holder 2 is disposed on the upper end of the mounting rod 11, and a positioning clamp with a power source is disposed above the mounting rod 11. The positioning clamp is used to clamp the positioning mounting rod 11. The mounting rod 11 has an area for the positioning clamp to clamp. The positioning clamp clamps the mounting rod 11 so that the pull tab 92 on the mounting rod 11 is accurately positioned.

[0023] After the pull tab 92 enters the receiving cavity, the support claw 3 can retract and return to its original position. However, there is a certain probability that the material will shift. To prevent the material from shifting when the support claw 3 returns to its original position, a support block 6 with a vertical surface is provided below the zipper head holder 2. The support block 6 can be installed on the frame 1 or directly on the mounting rod 11. A demolding pressure block 8 is provided on the opposite side of the support block 6, facing the support block 6. The demolding pressure block is connected to the film pressing power source that drives it to perform the film pressing action. During demolding, the demolding pressure block 8 and the support block 6 cooperate to position the material so that the support claw 3 can be reset. Specifically, the film pressing power source drives the demolding pressure block to enter between the left and right support plates of the support claw 3, pressing the material so that the relative position between the material and the pull tab 92 does not change, thereby facilitating the exit of the support claw 3 from the receiving cavity. To further prevent the pull tab 92 from shaking during the film application process, the support block 6 has a positioning groove 61 for placing the pull tab 92. The positioning groove 61 limits the shaking amplitude of the pull tab 92, further ensuring smooth film application.

[0024] To prevent the material from falling off the pull sheet 92 after the film is applied, an elastic baffle 7 is provided below the zipper head holder 2. The elastic baffle 7 can be a sponge or a thin plastic sheet with a certain elasticity. The elastic baffle 7 is connected to the film-blocking power source that drives the elastic baffle 7 to move up and down. When the elastic baffle 7 moves up, it can push the material up, ensuring that the pull sheet 92 is completely inserted into the material receiving cavity. Subsequently, the material can be heated by an oven or by hot air to shrink and fix the material on the pull sheet 92.

[0025] The working principle of this utility model is described below with reference to the accompanying drawings: The zipper head 91 is hung on the zipper head holder 2 through the buckle, and the pull tab 92 naturally falls into the positioning groove 61 by gravity to prevent large-scale shaking. The positioning clamp clamps the mounting rod 11 on which the zipper head holder 2 is installed.

[0026] The film material of the corresponding specification is fed into the suction cup assembly by the film material feeding device. The left and right suction cups respectively adsorb the two sides of the material. The cutter cuts the film material. The opening and closing power source drives the left and right suction cups to move away from each other, thereby opening the receiving cavity. The support claw 3 descends into the receiving cavity and opens to pick up the material. Then, the lifting seat 51 drives the support claw 3 to move upward. During the upward movement, the support claw 3 rotates upward (180°) so that the material opening faces the pull piece 92. The support claw 3 rises and pulls the pull piece 92 into the receiving cavity. The demolding block presses down the pull piece 92 containing the material, which facilitates the return of the support claw 3 to its original position. The film material feeding device is existing technology, and its specific structure will not be described in detail here.

[0027] In the description of this invention, it should be understood that the terms "center," "length," "width," "thickness," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention 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, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] In summary, the above description is only a preferred embodiment of the present utility model. All equivalent changes and modifications made within the scope of the patent application of the present utility model shall fall within the scope of the patent of the present utility model.

Claims

1. A film-coating device for a film-pulling and coating equipment, comprising a frame (1), characterized in that: The frame (1) is provided with a film-applying station and a film-removing station; The film-making station is equipped with a zipper head holder (2), which has a notch for the zipper head (91) to make the pull tab (92) face downwards. The film-making station and the film-taking station are connected by a support claw (3) with a power source for spreading. The support claw (3) is connected to the feeding drive assembly (5) that drives it to move up and down and rotate. The support claw (3) has a film-taking state and a film-wrapping state. When the support claw (3) is in the film-taking state, the feeding drive assembly (5) drives the support claw (3) to take the film downwards; When the support claw (3) is in the film-covering state, the feeding drive assembly (5) drives the support claw (3) to face upwards to cover the film.

2. The film-wrapping device of the film-pulling and wrapping equipment according to claim 1, characterized in that: The film taking station is also provided with a film material opening mechanism (4). The film material opening mechanism (4) is located below the support claw (3). The film material opening mechanism (4) includes a suction cup group. The suction cup group includes a front suction cup (41) and a rear suction cup (42) arranged opposite to each other. The front suction cup (41) and the rear suction cup (42) are connected to the opening and closing power source that drives the two to move symmetrically. When the suction cup assembly is working, the front suction cup (41) and the rear suction cup (42) work together to open the film material, so that the support claw (3) is formed in the film material to extend into the receiving cavity for picking up the material.

3. The film-wrapping device of the film-pulling and wrapping equipment according to claim 2, characterized in that: The frame has a film material outlet, which is located below the film material opening mechanism. A film material cutter is located between the film material opening mechanism and the film material outlet, and the film material cutter is connected to a cutting drive that drives it to move back and forth.

4. The film-wrapping device of the film-pulling and wrapping equipment according to claim 1, characterized in that: The feeding drive assembly (5) includes a lifting seat (51), a rotary drive (52) and a lifting drive. The lifting seat (51) is connected to the lifting drive. The support claw (3) is rotatably mounted on the lifting seat (51). The rotary drive (52) is connected to the support claw (3) in a transmission manner.

5. The film-wrapping device of the film-pulling and wrapping equipment according to claim 1, characterized in that: The frame (1) has an installation rod (11), and the zipper head holder (2) is set on the upper end of the installation rod (11); a positioning clamp with a power source is provided above the installation rod (11), and the positioning clamp is used to clamp the positioning installation rod (11).

6. The film-wrapping device of the film-pulling and wrapping equipment according to claim 1, characterized in that: The zipper head holder (2) is provided with a support block (6) with a vertical surface below it. A demolding block (8) is provided on the opposite side of the support block (6). The demolding block is connected to the demolding power source that drives it to perform the demolding action. During demolding, the demolding block (8) and the support block (6) work together to position the material so that the support claw (3) can be reset.

7. The film-wrapping device of the film-pulling and wrapping equipment according to claim 6, characterized in that: The support block (6) has a positioning groove (61) for placing the pull tab (92).

8. The film-wrapping device of the film-pulling and wrapping equipment according to claim 1, characterized in that: The zipper head holder (2) is provided with an elastic baffle (7) below it. The elastic baffle (7) is connected to the baffle power source that drives the elastic baffle (7) to move up and down.

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