Slide block zipper mounting structure of bag making machine

Abstract

The utility model discloses a slide block zipper mounting structure of a bag making machine, which at least comprises a packaging bag conveying mechanism, a slide block zipper mounting mechanism and a slide block zipper mounting mechanism, the folding mechanism is located at the sealing position of the packaging bag and used for folding the upper film material at the sealing position along the non-hot-sealing position of the sealing opening, a zipper installation part is formed between the upper film material and the lower film material of the sealing opening, and after the sliding block zipper is installed on the zipper installation part, the upper film material is folded back to cover the upper portion of the sliding block zipper and the upper portion of the lower film material. The zipper conveying mechanism is used for continuously conveying the slide block zipper to the zipper mounting part; and the hot-pressing structure is used for hot-pressing the slide block zipper on the lower film material and hot-sealing the upper film material and the lower film material to form a complete packaging bag structure. According to the sliding block zipper installation structure of the bag making machine, the zipper is installed at the sealing position of a basically-formed packaging bag, only the sealing opening of the zipper part needs to be installed in a heat sealing mode, the installation error is small, operation is convenient, and the application range is wide.

Description

Technical Field

[0001] The utility model relates to the field of packaging bags, in particular to a slider zipper installation structure of a bag making machine. Background Art

[0002] Packaging bags are bags used to package various items, facilitating easy transportation and storage during production and distribution. They are widely used in daily life and industrial production. To facilitate opening and closing, existing packaging bags often have zippers installed at the bag opening. These zippers are typically inserted before the bag's basic shape is formed, and then the bag is sealed with a hot stamping process. This zipper installation method is prone to manufacturing errors when installing zippers with sliders, as they have stops on both sides. Utility Model Content

[0003] The purpose of the utility model is to provide a slider zipper installation structure for a bag making machine to solve the problems in the background technology.

[0004] To achieve this purpose, the present invention adopts the following technical solutions:

[0005] Provided is a slider zipper installation structure for a bag making machine. The installation structure is located in the sealing process of the bag making machine and is used to install the slider zipper at the sealing portion of the packaging bag. The structure comprises at least:

[0006] The packaging bag conveying mechanism continuously and uninterruptedly conveys packaging bags that have not been hot-sealed at the sealing part;

[0007] a folding mechanism, located at the sealing portion of the packaging bag, for folding the upper film material at the sealing portion along the unsealed portion of the sealing portion to form a zipper mounting portion between the upper film material and the lower film material of the sealing portion, and folding the upper film material back to cover the slider zipper and the lower film material after the slider zipper is installed at the zipper mounting portion;

[0008] A zipper conveying mechanism continuously and uninterruptedly conveys the slider zipper to the zipper installation portion;

[0009] The ironing and pressing structure is a ironing and pressing mechanism used to iron the slider zipper onto the lower film material, and to iron and seal the upper film material and the lower film material to form a complete packaging bag structure.

[0010] Furthermore, the conveying direction of the packaging bag conveying mechanism is perpendicular to the sealing direction of the packaging bag.

[0011] Furthermore, the specific packaging structure that is not heat-sealed at the sealing portion and is conveyed by the packaging bag conveying mechanism is as follows: the packaging structure has at least an upper film material and a lower film material, the bottom connection between the upper film material and the lower film material is completely heat-sealed, and the parts on both sides opposite to the bottom connection are reserved with unsealed parts for installing a slider zipper.

[0012] Furthermore, the folding mechanism has at least a first folding mechanism and a second folding mechanism. The first folding mechanism folds the upper film material of the packaging structure upward along the unsealed portion, and the second folding mechanism is located in the downstream process of the first folding mechanism, folds the upper film material back along the unsealed portion and covers the lower film material.

[0013] Furthermore, the zipper conveying mechanism is located between the first folding mechanism and the second folding mechanism, and has at least a zipper preparation mechanism, and the zipper preparation mechanism has at least:

[0014] Zipper film material conveying device, continuously and uninterruptedly conveying zipper materials;

[0015] A slider and sleeve installation device, which installs the slider and sleeve on the zipper material at intervals;

[0016] A fixing device fixes the sleeve to the zipper material to form a continuous zipper structure.

[0017] Furthermore, the zipper conveying mechanism also has a zipper cutting mechanism, which cuts the continuous zipper structure along the middle part of the sleeve to form a segmented slider zipper structure with the sleeves on both sides and the slider between the two sleeves.

[0018] Furthermore, the zipper conveying mechanism also has a zipper feeding mechanism, which conveys the segmented slider zipper to the top of the lower film material after being folded by the first folding mechanism. The direction in which the zipper feeding mechanism conveys the slider zipper is perpendicular to the conveying direction of the packaging bag conveying mechanism.

[0019] Furthermore, the ironing mechanism has at least a first ironing mechanism, a second ironing mechanism and a third ironing mechanism, the first ironing mechanism is arranged between the zipper conveying mechanism and the second folding mechanism, and the second ironing mechanism and the third ironing mechanism are respectively arranged in the downstream process of the second folding mechanism.

[0020] Furthermore, the first ironing mechanism is located above the slider zipper, and irons and positions the slider zipper on the lower film material; the second ironing mechanism and the third ironing mechanism are located above the folded upper film material, and iron the slider zipper and the upper film material, and the upper film material and the lower film material, respectively.

[0021] Furthermore, the slider zipper installation structure of the bag making machine also has a cooling mechanism, which is located in the downstream process of the third ironing mechanism and cools the sealing part of the packaging bag after ironing to form the final packaging bag structure. Beneficial effects

[0022] The slider zipper installation structure of the bag making machine provided by the utility model can install the zipper on the sealing part of the basically formed packaging bag, and only the sealing interface of the zipper part needs to be installed. The installation error is small, the operation is convenient, and the application range is wide. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the slider zipper installation process of the bag making machine in this embodiment;

[0024] Figure 2 This is a schematic diagram of the installation of a packaging bag in which the sealing portion is not hot-sealed in this embodiment;

[0025] Figure 3 yes Figure 1 Schematic diagram of the packaging bag structure after the upper film is folded in the middle;

[0026] Figure 4 yes Figure 1 Schematic diagram of the packaging bag structure after the upper film material is folded back in the middle;

[0027] Figure 5 yes Figure 1 Schematic diagram of the middle zipper conveying structure;

[0028] In the picture:

[0029] 1- packaging bag, 10- upper film material, 11- lower film material, 12- bottom, 13- side accordion, 14- unsealed part, 15- zipper, 150- slider, 151- sleeve, 16- seal;

[0030] 20-packaging bag conveying mechanism, 21-slider and sleeve installation device, 22-material receiving platform. DETAILED DESCRIPTION

[0031] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0032] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0033] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0034] In the description of this embodiment, the terms "upper", "lower", "right", etc., and the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present utility model.

[0035] This embodiment provides a slider zipper installation structure for a bag making machine. The installation structure is located in the sealing process of the bag making machine and is used to install the slider zipper at the sealing portion of the packaging bag. The structure includes at least:

[0036] The packaging bag conveying mechanism continuously and uninterruptedly conveys packaging bags that have not been hot-sealed at the sealing part;

[0037] The folding mechanism is located at the sealing portion of the packaging bag and is used to fold the upper film material at the sealing portion along the unsealed portion of the sealing portion to form a zipper installation portion between the upper film material and the lower film material of the sealing portion. After the slider zipper is installed in the zipper installation portion, the upper film material is folded back to cover the slider zipper and the lower film material.

[0038] The zipper conveying mechanism continuously and uninterruptedly conveys the slider zipper to the zipper installation part;

[0039] The hot pressing structure is used to hot press the slider zipper onto the lower film material, and to hot seal the upper film material and the lower film material to form a complete packaging bag structure.

[0040] Combine Figure 1-Figure 5 As shown, based on the above slider zipper installation structure, the preparation process of the bag making machine is as follows:

[0041] In process A, the packaging bag conveying mechanism 20 continuously and uninterruptedly conveys the packaging bag 1, which has at least an upper film material 10 and a lower film material 11. The bottom 12 connection between the upper film material 10 and the lower film material 11 is completely hot-sealed, and the parts on both sides opposite to the connection between the bottom 12 are reserved with un-hot-sealed parts 14 for installing slider zippers 15. A seal 16 is formed between the upper film material 10 and the lower film material 11 at the un-hot-sealed parts 14. In this embodiment, the packaging bag 1 adopts a four-side sealed packaging bag, and two side accordions 13 are provided on both sides of the upper film material 10 and the lower film material 11. At this time, the un-hot-sealed part 14 is located above the triangular fold corner of the side accordion 13, that is, the part from the triangular fold corner of the side accordion 13 to the bottom 12 is in a hot-sealed state, and the position between the triangular fold corner and the opening is the un-hot-sealed part 14. In other embodiments, the bag type is not limited to a four-side sealed packaging bag, and other types are also applicable.

[0042] In step A, the packaging bag conveying mechanism 20 can adopt the packaging bag conveying mechanism of the existing bag making machine, and it only needs to achieve sustainable conveyance of the packaging bags.

[0043] In this process, the conveying direction of the packaging bag conveying mechanism 20 is perpendicular to the direction of the packaging bag sealing 16 .

[0044] In step B, the first folding mechanism folds the upper film 10 upward along the unsealed portions 14 on both sides, so that an open state is formed between the upper film 10 and the lower film 11. The first folding mechanism can be an existing folding mechanism, such as a folding support rod, a guide rod, or a mechanical arm.

[0045] In process C, after the upper film 10 is folded in process B, the slider zipper 15 is conveyed to the top of the lower film 11. In process C, the conveying of the slider zipper 15 includes at least a zipper preparation mechanism, a zipper cutting mechanism, and a zipper feeding mechanism.

[0046] The zipper preparation mechanism in this embodiment at least has:

[0047] Zipper film material conveying device, continuously and uninterruptedly conveying zipper materials;

[0048] The slider and sleeve installation device 21 installs the slider 150 and the sleeve 151 on the zipper material at intervals;

[0049] The fixing device fixes the sleeve 151 to the zipper material to form a continuous zipper 15 structure.

[0050] It should be noted that, for the specific structure and preparation process of the zipper preparation mechanism in this embodiment, reference can be made to the technical proposal of a sleeve-type zipper for a packaging bag and its installation structure, which was simultaneously applied for by the applicant; in other embodiments, the zipper preparation mechanism can also use traditional preparation equipment to prepare the existing zipper structure to be suitable for the process flow of this proposal.

[0051] Among them, the zipper cutting mechanism in this embodiment has at least a cutter and a driving mechanism connected to the cutter. The driving mechanism drives the cutter to cut the continuous zipper 15 structure along the middle part of the sleeve 151 to form a segmented slider zipper 15 structure with sleeves 151 on both sides and a slider 150 between the two sleeves 151.

[0052] Among them, the zipper feeding mechanism can adopt existing structures such as conveying guide rollers, transport platforms, and rotating wheels to convey the segmented slider zipper 15 to the top of the lower film material 11 after being folded by the first folding mechanism. The direction in which the zipper feeding mechanism conveys the slider zipper 15 is perpendicular to the conveying direction of the packaging bag conveying mechanism 20.

[0053] After the zipper conveying mechanism conveys the slider zipper 15 to the top of the lower film material 11, the first pressing mechanism located above the slider zipper in step D presses the slider zipper 15 onto the lower film material 11. The number of pressing times in step D can be determined according to actual needs.

[0054] In step E, the upper film material 10 is folded back along the unsealed portion 14 by a second folding mechanism located downstream of the first pressing mechanism to cover the lower film material 11 and the slider zipper 15. The structure of the second folding mechanism can be basically the same as that of the first folding mechanism.

[0055] In process F, after the second folding mechanism folds back the upper film material 10, the second pressing mechanism and the third pressing mechanism located at the rear end of the second folding mechanism respectively press the slider zipper 15 and the upper film material 10 and the upper film material 10 and the lower film material 11, thereby completely fixing the slider zipper 15 between the upper film material 10 and the lower film material 11 to form a seal 16, thereby forming a complete packaging bag 1 with a slider zipper.

[0056] In step G, the slider zipper installation structure of the bag making machine also has a cooling mechanism, which is located downstream of the third ironing mechanism and cools the sealing portion 16 of the packaging bag after ironing to form the final packaging bag structure.

[0057] In step H, the packaging bag 1 formed after cooling is sent out through the receiving platform 22.

[0058] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A slider zipper installation structure for a bag making machine, which is located in the sealing process of the bag making machine and is used to install a slider zipper at the sealing part of the packaging bag, characterized in that: At least: The packaging bag conveying mechanism continuously and uninterruptedly conveys packaging bags that have not been hot-sealed at the sealing part; a folding mechanism, located at the sealing portion of the packaging bag, for folding the upper film material at the sealing portion along the unsealed portion of the sealing portion to form a zipper mounting portion between the upper film material and the lower film material of the sealing portion, and folding the upper film material back to cover the slider zipper and the lower film material after the slider zipper is installed at the zipper mounting portion; A zipper conveying mechanism continuously and uninterruptedly conveys the slider zipper to the zipper installation portion; The ironing mechanism is used to iron the slider zipper onto the lower film material, and to iron-seal the upper film material and the lower film material to form a complete packaging bag structure.

2. The slider zipper installation structure of the bag making machine according to claim 1, characterized in that: The conveying direction of the packaging bag conveying mechanism is perpendicular to the sealing direction of the packaging bag.

3. The slider zipper installation structure of the bag making machine according to claim 1, characterized in that: The specific packaging structure that is not hot-sealed at the sealing part and is conveyed by the packaging bag conveying mechanism is: the packaging structure has at least an upper film material and a lower film material, the bottom connection between the upper film material and the lower film material is completely hot-sealed, and the parts on both sides opposite to the bottom connection are reserved with unsealed parts for installing slider zippers.

4. The slider zipper installation structure of the bag making machine according to claim 3, characterized in that: The folding mechanism has at least a first folding mechanism and a second folding mechanism. The first folding mechanism folds the upper film material of the packaging structure upward along the unsealed portion. The second folding mechanism is located in the downstream process of the first folding mechanism, and folds the upper film material back along the unsealed portion to cover the lower film material.

5. The slider zipper installation structure of the bag making machine according to claim 4, characterized in that: The zipper conveying mechanism is located between the first folding mechanism and the second folding mechanism, and comprises at least a zipper preparation mechanism, wherein the zipper preparation mechanism comprises at least: Zipper film material conveying device, continuously and uninterruptedly conveying zipper materials; A slider and sleeve installation device, which installs the slider and sleeve on the zipper material at intervals; A fixing device fixes the sleeve to the zipper material to form a continuous zipper structure.

6. The slider zipper installation structure of the bag making machine according to claim 5, characterized in that: The zipper conveying mechanism also has a zipper cutting mechanism, which cuts the continuous zipper structure along the middle part of the sleeve to form a segmented slider zipper structure with the sleeves on both sides and the slider between the two sleeves.

7. The slider zipper installation structure of the bag making machine according to claim 4, characterized in that: The zipper conveying mechanism also has a zipper feeding mechanism, which conveys the segmented slider zipper to the top of the lower film material after being folded by the first folding mechanism. The direction in which the zipper feeding mechanism conveys the slider zipper is perpendicular to the conveying direction of the packaging bag conveying mechanism.

8. The slider zipper installation structure of the bag making machine according to claim 4, characterized in that: The ironing mechanism comprises at least a first ironing mechanism, a second ironing mechanism and a third ironing mechanism. The first ironing mechanism is arranged between the zipper conveying mechanism and the second folding mechanism. The second ironing mechanism and the third ironing mechanism are respectively arranged in the downstream process of the second folding mechanism.

9. The slider zipper installation structure of the bag making machine according to claim 8, characterized in that: The first ironing mechanism is located above the slider zipper, and irons and positions the slider zipper on the lower film material; the second ironing mechanism and the third ironing mechanism are located above the folded upper film material, and iron the slider zipper and the upper film material, and the upper film material and the lower film material, respectively.

10. The slider zipper installation structure of the bag making machine according to claim 8, characterized in that: The slider zipper installation structure of the bag making machine also has a cooling mechanism, which is located in the downstream process of the third ironing mechanism and cools the sealing part of the packaging bag after ironing to form the final packaging bag structure.

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