Suitcase zipper attaching equipment
By using a three-point pressure fixing structure consisting of positioning rollers, support turntables, and pressure rollers in the bag zipper bonding equipment, combined with a heating and blowing module and rolling assembly, precise alignment and automated bonding of the zipper to the bag shell are achieved. This solves the problems of low efficiency and unstable quality in traditional manual operation, and improves production efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN RENHE INTELLIGENT IND CO LTD
- Filing Date
- 2025-05-14
- Publication Date
- 2026-05-08
AI Technical Summary
Traditional zipper bonding processes rely on manual operation, resulting in low production efficiency, unstable product quality, and serious issues such as uneven adhesive layer thickness and coating trajectory deviation that severely affect product quality.
The bag zipper bonding equipment utilizes a three-point pressure fixing structure consisting of positioning rollers, support turntables, and pressure rollers, combined with a heating and blowing module and rolling assembly, to achieve precise alignment and automated bonding between the zipper and the bag shell. The optimal bonding state of the adhesive film is ensured through the synchronous control of the first and second drive motors.
It improved production efficiency, reduced labor costs, ensured high-precision and high-quality zipper fitting, reduced processing deviations, and enhanced the aesthetics and durability of the products.
Smart Images

Figure CN224214522U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of luggage manufacturing technology, and in particular to a luggage zipper bonding device. Background Technology
[0002] In the bag manufacturing industry, the zipper inner bonding process is one of the key steps determining the product's aesthetics and durability. Traditional zipper bonding relies heavily on manual operation, involving hand-applying glue, positioning the zipper strip, and applying pressure to bond it to the bag fabric. However, this process has significant drawbacks in practical applications, severely restricting production efficiency and product quality stability.
[0003] First, the manual bonding process requires repeated adjustments to the zipper position to ensure alignment accuracy. Operators need to rely on experience for multiple calibrations, significantly increasing the processing time per unit. Especially in mass production, the high labor intensity and rising labor costs become increasingly prominent, making it difficult to meet the efficiency demands of modern production. Second, the manual glue application process suffers from uneven glue layer thickness and application trajectory deviation, easily leading to localized glue accumulation or gaps. Insufficient glue weakens the bond strength, causing the zipper to detach; excessive glue can easily penetrate the fabric or harden into a knot, affecting aesthetics and causing wrinkles at the bonding area due to stress concentration, shortening the lifespan of the bag. Furthermore, the difficulty in precisely controlling the pressure and uniformity during manual application further exacerbates the risk of residual air bubbles or localized weak adhesion on the bonding surface, resulting in significant fluctuations in product yield. Utility Model Content
[0004] In view of the deficiencies of the prior art, this utility model provides a bag zipper bonding device:
[0005] The system includes a machine base, with a first support plate above it, a first drive motor below it, and a first driven shaft above it. The movable end of the first drive motor is connected to the first driven shaft via a first transmission belt, enabling the first drive motor to drive the first driven shaft to rotate. The first support plate also includes a heating and blowing module, which includes a heating and blowing head located near the output end of the first driven shaft. The machine base also includes a second support plate with a rolling assembly located above the first driven shaft. The rolling assembly includes a first drive cylinder, a fixed plate, a second drive motor, a second driven shaft, and a second transmission belt. The first drive cylinder is fixed to the second support plate, with its movable end connected to the fixed plate to drive the fixed plate to move up and down. The second drive motor is located above the fixed plate, and the second driven shaft is located below it. The second transmission belt is sleeved between the second drive motor and the second driven shaft, enabling the second drive motor to drive the second driven shaft to rotate.
[0006] Preferably, the system includes a machine base, with a first support plate above the machine base, a first drive motor below the first support plate, and a first driven shaft above the first support plate. The movable end of the first drive motor is connected to the first driven shaft via a first transmission belt, so that the first drive motor drives the first driven shaft to rotate. The first support plate also includes a heating and blowing module, which includes a heating and blowing head located near the output end of the first driven shaft. The machine base also includes a second support plate, which has a rolling assembly located above the first driven shaft. The rolling assembly includes a first drive cylinder, a fixed plate, a second drive motor, a second driven shaft, and a second transmission belt. The first drive cylinder is fixed to the second support plate, and its movable end is connected to the fixed plate to drive the fixed plate to move up and down. The second drive motor is located above the fixed plate, and the second driven shaft is located below the fixed plate. The second transmission belt is sleeved between the second drive motor and the second driven shaft, so that the second drive motor drives the second driven shaft to rotate.
[0007] Preferably, the first support plate is equipped with a chain press assembly, which includes a linear drive, a connecting rod, and a first roller. The connecting rod is mounted on the first support plate in a manner that allows it to rotate around the center. The linear drive is fixed to the first support plate, and the movable end of the linear drive is rotatably connected to one end of the connecting rod to drive the connecting rod to rotate. The other end of the connecting rod is rotatably connected to the first roller, which is located near the positioning roller.
[0008] Preferably, a limiting plate is provided on the first support plate. The limiting plate is located above the positioning roller and has an oblong hole. The limiting plate is fixed to the first support plate with screws.
[0009] Preferably, the heating and blowing module further includes a hot air gun, a mounting plate, and a second driving cylinder. The mounting plate is fixedly connected to the first support plate, the second driving cylinder is fixedly connected to the mounting plate, the movable end of the second driving cylinder is fixedly connected to the hot air gun, and the second driving cylinder is used to push the hot air gun to move in the horizontal direction. The air outlet of the hot air gun is connected to the heating and blowing head.
[0010] Preferably, the fixed plate is further equipped with a third driving cylinder, the movable end of the third driving cylinder is connected to a fourth driving cylinder, the third driving cylinder is used to push the fourth driving cylinder to move up and down, the movable end of the fourth driving cylinder is connected to a second roller, the fourth driving cylinder is used to push the second roller to move horizontally, and the first support plate is equipped with a support turntable, the support turntable is used to cooperate with the second roller.
[0011] This utility model provides a zipper bonding device for luggage, used to bond zippers to the inner edge of the luggage shell. Utilizing the avoidance grooves and contoured surface design of the positioning rollers, combined with a three-point pressure fixing structure (positioning roller, support turntable, and second roller), precise alignment and stable bonding between the zipper and the luggage shell are achieved, reducing processing deviations. Synchronous control of the first and second drive motors and real-time hot melt adhesive activation by the heating and blowing module, along with the automated collaborative operation of the rolling assembly, significantly improves production efficiency and ensures optimal adhesive adhesion. The device also features flexible adaptability functions such as adjustable waist-shaped holes in the limit plate and horizontal movement of the heating and blowing head, making it compatible with luggage of different sizes. Furthermore, the anti-slip design of the zipper pressing assembly and rubber rollers further enhances processing stability and finished product quality. Ultimately, while reducing labor costs, it achieves efficient and high-precision zipper bonding, combining practicality and market competitiveness. Attached Figure Description
[0012] The above and / or additional aspects and advantages of this invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0013] Figure 1 This is a three-dimensional view of the overall structure of the bag zipper bonding device provided by this utility model;
[0014] Figure 2 This is a processing state diagram of the bag zipper bonding equipment provided by this utility model;
[0015] Figure 3 This is a view of the installation structure of the first support plate of the bag zipper bonding device provided by this utility model;
[0016] Figure 4 This is a view of the installation structure of the second support plate of the bag zipper bonding device provided by this utility model;
[0017] Figure 5 This is a three-dimensional view of the positioning roller of the zipper bonding device for bags provided by this utility model;
[0018] Figure 6 This is a three-dimensional view of the pressure roller of the bag zipper bonding device provided by this utility model;
[0019] Figure 7 This is another view of the installation structure of the first support plate of the bag zipper bonding device provided by this utility model;
[0020] Figure 8 This is a connection diagram of the heating and blowing module of the bag zipper bonding equipment provided by this utility model;
[0021] Figure 9 This is another view of the installation structure of the second support plate of the bag zipper bonding device provided by this utility model. Detailed Implementation
[0022] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0023] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They 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 this utility model. 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, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows for mutual communication; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0025] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0026] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.
[0027] This utility model provides a zipper bonding device for bags, the purpose of which is to bond the zipper to the inner edge of the bag shell, thereby reducing the impact of the zipper on the overall consistency of the bag. To achieve the purpose of this utility model, it should be noted that the zipper needs to be pre-adhesive-backed with hot melt adhesive film.
[0028] like Figure 1-4 As shown, this utility model provides a zipper bonding device for bags, including a machine base 1000. A first support plate 1 is disposed above the machine base 1000. A first drive motor 11 is disposed below the first support plate 1, and a first driven shaft 12 is disposed above the first support plate 1. The movable end of the first drive motor 11 and the first driven shaft 12 are connected by a first transmission belt 13 to drive the first driven motor 11 to rotate the first driven shaft 12. The first support plate 1 also includes a heating and blowing module 14, which includes a heating and blowing head 141 located near the output end of the first driven shaft 12. A second support plate 2 is also disposed on the machine base 1000. The second support plate 2 is provided with a rolling assembly 21, which is located above the first driven shaft 12. The rolling assembly 21 includes a first drive cylinder 211, a fixed plate 212, a second drive motor 213, a second driven shaft 214, and a second transmission belt 215. The first drive cylinder 211 is fixed on the second support plate 2, and the movable end of the first drive cylinder 211 is connected to the fixed plate 212 to drive the fixed plate 212 to move up and down. The second drive motor 213 is located above the fixed plate 212, and the second driven shaft 214 is located below the fixed plate. The second transmission belt 215 is sleeved between the second drive motor 213 and the second driven shaft 214 to enable the second drive motor 213 to drive the second driven shaft 214 to rotate.
[0029] It is understandable that the top of the machine tool is used to support the various components of the equipment, and the interior of the machine tool can house the control system for controlling the operation of cylinders, motors, etc.; in this embodiment, Figure 1 The complete structure of the bag zipper bonding device is shown. To better understand the working method of this embodiment, in Figure 2 and Figure 3 The diagram shows the placement positions of the bag shell and the zipper. It should be noted that the output end of the first driven shaft 12 is the placement position for the zipper. In this embodiment, during processing, the zipper is first placed on the output end of the first driven shaft 12, and then the bag shell is fitted onto the zipper. At this time, the zipper is located at the inner edge of the bag shell. Then, the first drive cylinder 211 drives the fixing plate 212 to move downwards until the output end of the second driven shaft 214 contacts the outer side of the bag shell and generates pressure to prevent the bag shell from falling off. Finally, the first drive motor 11 drives the first driven shaft 12 to rotate. At the same time, the second drive motor 213 drives the second driven shaft 214 to rotate. Since the output ends of the first driven shaft 12 and the second driven shaft 214 exert pressure on the bag shell and the zipper, the rotation of the first driven shaft 12 and the second driven shaft 214 will also drive the zipper and the bag shell to move. By activating the hot melt adhesive film of the zipper backing by the heating blower head 141, the zipper can be glued to the edge of the bag shell.
[0030] In some embodiments, such as Figure 1 , Figure 5 , Figure 6 As shown, a rubber positioning roller 121 is sleeved on the output end of the first driven shaft 12. The positioning roller 121 has a relief groove 1211 in the middle and a first contour surface 1212 at the end away from the first driven shaft 12. A rubber pressure roller 2141 is sleeved on the output end of the second driven shaft 214. A second contour surface 2142 is provided at the end of the pressure roller 2141 near the second driven shaft 214.
[0031] In this embodiment, it can be understood that during the processing, the zipper rests on the positioning roller 121. Both the positioning roller 121 and the pressure roller 2141 are made of rubber to increase friction, so that the zipper and the bag shell can move more synchronously with the first driven shaft 12 and the second driven shaft 214. The clearance groove 1211 is used to avoid the zipper teeth. When the zipper rests on the positioning roller 121, the zipper teeth are located in the clearance groove 1211. The clearance groove 1211 can also provide positioning and limiting for the zipper. When placing the zipper, the placement position can be accurately found, and the zipper can be prevented from deviating when moving. It can also be understood that the first contouring surface 1212 is a contour of the inner edge of the bag shell, and the second contouring surface 2142 is a contour of the outer edge of the bag shell, so as to facilitate a tighter contact between the positioning roller 121, the pressure roller 2141 and the bag shell.
[0032] In some embodiments, such as Figure 1 , Figure 3As shown, the first support plate 1 is equipped with a chain press assembly 15. The chain press assembly 15 includes a linear drive 151, a connecting rod 152, and a first roller 153. The connecting rod 152 is mounted on the first support plate 1 in a manner that allows it to rotate around the center. The linear drive 151 is fixed to the first support plate 1. The movable end of the linear drive 151 is rotatably connected to one end of the connecting rod 152 to drive the connecting rod 152 to rotate. The other end of the connecting rod 152 is rotatably connected to the first roller 153, which is located near the positioning roller 121.
[0033] In this embodiment, by setting the zipper pressing assembly 15, after the zipper is placed on the positioning roller 121, the linear drive 151 can push the connecting rod 152 and then push the first roller 153 to squeeze the zipper. This not only prevents the zipper from falling off, but also keeps the part of the zipper between the positioning roller 121 and the first roller 153 tightly wrapped around the positioning roller 121 during the processing, making the processing more stable.
[0034] In some embodiments, such as Figure 7 As shown, a limiting plate 16 is provided on the first support plate 1. The limiting plate 16 is located above the positioning roller 121. The limiting plate 16 has an oblong hole 161 and is fixed to the first support plate 1 with screws.
[0035] In this embodiment, the limiting plate 16 is used to limit the shell of the bag. When the bag shell is put on the zipper, the limiting plate 16 abuts against the bag shell. By adjusting the limiting plate 16 through the waist-shaped hole 161, the edge of the bag shell is aligned with the zipper.
[0036] In some embodiments, such as Figure 1 , Figure 8 As shown, the heating and blowing module 14 also includes a hot air gun 142, a mounting plate 143, and a second driving cylinder 144. The mounting plate 143 is fixedly connected to the first support plate 1, and the second driving cylinder 144 is fixedly connected to the mounting plate 143. The movable end of the second driving cylinder 144 is fixedly connected to the hot air gun 142. The second driving cylinder 144 is used to push the hot air gun 142 to move in the horizontal direction. The air outlet of the hot air gun 142 is connected to the heating and blowing head 141.
[0037] In this embodiment, the second drive cylinder 144 pushes the hot air gun 142 to move, which in turn pushes the heating blower head 141 to move, thereby adjusting the heating position of the heating blower head 141.
[0038] In some embodiments, such as Figure 2 , Figure 9As shown, the fixed plate 212 is also equipped with a third drive cylinder 22, and the movable end of the third drive cylinder 22 is connected to a fourth drive cylinder 23. The third drive cylinder 22 is used to push the fourth drive cylinder 23 to move up and down. The movable end of the fourth drive cylinder 23 is connected to a second roller 24. The fourth drive cylinder 23 is used to push the second roller 24 to move horizontally. The first support plate 1 is equipped with a support turntable 17, which is used to cooperate with the second roller 24.
[0039] In this embodiment, it is understood that the fixed plate 212, the third drive cylinder 22, the fourth drive cylinder 23, and the fourth drive cylinder 23 can be connected by a connecting plate to facilitate installation position adjustment or avoidance between various components. During processing, the bag shell is fitted with a zipper. At this time, the support turntable 17 abuts against the inner side of the bag shell, and the first drive cylinder 211 pushes the fixed plate 212 downward until the pressure roller 2141 contacts the bag shell and generates a certain pressure. At the same time, the third drive cylinder installed on the fixed plate 212... Cylinder 22 moves synchronously. Furthermore, the third drive cylinder 22 pushes the fourth drive cylinder 23, which in turn pushes the second roller 24 to continue moving downward, so that the second roller 24 is positioned vertically between the positioning roller 121 and the support turntable 17. Finally, the fourth drive cylinder 23 drives the second roller 24 to move horizontally until the second roller 24 contacts the outside of the bag shell and generates a certain pressure. Through the pressure at the three points of the positioning roller 121, the support turntable 17, and the second roller 24, it can be seen that the bag shell is prevented from falling off during processing.
[0040] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0041] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A bag zipper bonding device, characterized in that, The system includes a machine base, with a first support plate above it, a first drive motor below it, and a first driven shaft above it. The movable end of the first drive motor is connected to the first driven shaft via a first transmission belt, enabling the first drive motor to drive the first driven shaft to rotate. The first support plate also includes a heating and blowing module, which includes a heating and blowing head located near the output end of the first driven shaft. The machine base also includes a second support plate with a rolling assembly located above the first driven shaft. The rolling assembly includes a first drive cylinder, a fixed plate, a second drive motor, a second driven shaft, and a second transmission belt. The first drive cylinder is fixed to the second support plate, with its movable end connected to the fixed plate to drive the fixed plate to move up and down. The second drive motor is located above the fixed plate, and the second driven shaft is located below it. The second transmission belt is sleeved between the second drive motor and the second driven shaft, enabling the second drive motor to drive the second driven shaft to rotate.
2. The bag zipper bonding device according to claim 1, characterized in that, The output end of the first driven shaft is fitted with a positioning roller made of rubber, and the positioning roller has an avoidance groove in the middle and a first contour surface at the end away from the first driven shaft; the output end of the second driven shaft is fitted with a pressure roller made of rubber, and the end of the pressure roller near the second driven shaft has a second contour surface.
3. The bag zipper bonding device according to claim 2, characterized in that, The first support plate is equipped with a chain press assembly, which includes a linear drive, a connecting rod, and a first roller. The connecting rod is mounted on the first support plate in a manner that allows it to rotate around the center. The linear drive is fixed to the first support plate, and the movable end of the linear drive is rotatably connected to one end of the connecting rod to drive the connecting rod to rotate. The other end of the connecting rod is rotatably connected to the first roller, which is located near the positioning roller.
4. The bag zipper bonding device according to claim 3, characterized in that, A limiting plate is provided on the first support plate. The limiting plate is located above the positioning roller. The limiting plate has an oblong hole and is fixed to the first support plate with screws.
5. A bag zipper bonding device according to claim 4, characterized in that, The heating and blowing module also includes a hot air gun, a mounting plate, and a second driving cylinder. The mounting plate is fixedly connected to the first support plate, the second driving cylinder is fixedly connected to the mounting plate, and the movable end of the second driving cylinder is fixedly connected to the hot air gun. The second driving cylinder is used to push the hot air gun to move in the horizontal direction, and the air outlet of the hot air gun is connected to the heating and blowing head.
6. The bag zipper bonding device according to claim 5, characterized in that, The fixed plate is also equipped with a third drive cylinder, and the movable end of the third drive cylinder is connected to a fourth drive cylinder. The third drive cylinder is used to push the fourth drive cylinder to move up and down. The movable end of the fourth drive cylinder is connected to a second roller, and the fourth drive cylinder is used to push the second roller to move horizontally. The first support plate is equipped with a support turntable, and the support turntable is used to cooperate with the second roller.