Packaging bag sealing strip mounting structure

By designing the sealing strip installation structure for packaging bags, the automated transfer and pressing of the sealing strip was achieved, solving the problem of slow manual operation, improving production efficiency and product quality, and reducing labor intensity and costs.

CN224240539UActive Publication Date: 2026-05-15GUANGDONG BOCHANG TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG BOCHANG TECHNOLOGY CO LTD
Filing Date
2025-04-23
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

In the existing technology, the installation of sealing strips on packaging bags mainly relies on manual operation, which results in slow speed and instability, and cannot meet the needs of large-scale production.

Method used

A packaging bag sealing strip installation structure was designed, including a stacking rack, a transfer mechanism, a conveyor line, and a pressing mechanism. The automatic transfer and pressing of the sealing strip are achieved through mechanical automation. The rotary reciprocating mechanism and vacuum suction cup are used for precise material picking. Combined with an automated conveyor belt and a cylinder-driven pressing plate, a production line operation is formed.

Benefits of technology

It improves the production efficiency and quality of sealing strip installation, reduces manual intervention, ensures accurate application and uniform pressing of sealing strips, reduces labor intensity and labor costs, and improves product qualification rate.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model relates to the technical field of packaging bag production, and discloses a packaging bag sealing strip mounting structure which is characterized in that a stacking frame is used for stacking sealing strips; the transferring mechanism is used for transferring the sealing strips on the material stacking frame and pasting the sealing strips to pasting openings of the packaging bags, and the transferring mechanism comprises a rotating reciprocating mechanism rotating from rotation to linear motion, an electric rotary table fixed to a linear lifting platform of the rotating reciprocating mechanism and a vacuum suction cup installed on a horizontal supporting rod in the center of the electric rotary table; the conveying line is used for conveying feeding and discharging of sealing bags and comprises a rack and an automatic conveying belt installed on the rack. The pressing mechanism is used for pressing and positioning the sealing strip at the sealing opening of the packaging bag on the packaging bag, automatic feeding and discharging of the packaging bag and sealing strip pasting can be achieved, and the automation degree is high.
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Description

Technical Field

[0001] This utility model belongs to the field of packaging bag production technology, and specifically relates to a packaging bag sealing strip installation structure. Background Technology

[0002] In the packaging industry, the sealing performance of packaging bags is crucial, and the installation of sealing strips is a key step in ensuring the sealing effect. With the increasing market demand for packaging bags, higher requirements are being placed on the efficiency and quality of sealing strip installation.

[0003] In the early days, the installation of sealing strips on packaging bags was mainly done manually. Workers needed to manually cut the sealing strip to the appropriate length, then attach it to the opening of the packaging bag, and finally press it in place using a simple pressing tool. With the development of technology, some simple mechanical aids emerged. These devices typically only achieved partial automation, such as using conveyor belts to transport packaging bags and using simple clamps to fix the sealing strip to the opening of the packaging bag. However, key steps such as the transfer, positioning, and pressing of the sealing strip still required manual intervention.

[0004] In view of this, we propose a packaging bag sealing strip installation structure with a high degree of automation and high production efficiency to solve the above problems. Utility Model Content

[0005] The present invention aims to solve the technical problem in the prior art that manual operation is slow and prone to fatigue during long-term work, resulting in unstable installation speed and failing to meet the needs of large-scale production.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A packaging bag sealing strip installation structure, comprising:

[0008] Stacking rack, used for stacking and placing sealing strips;

[0009] The transfer mechanism is used to transfer the sealing strip on the stacking rack and attach it to the sealing opening of the packaging bag. The transfer mechanism includes a rotary reciprocating mechanism that rotates to linear motion, an electric rotary table fixed on the linear lifting platform of the rotary reciprocating mechanism, and a vacuum suction cup installed on a horizontal support rod at the center of the electric rotary table.

[0010] A conveyor line is used to transport sealed bags for loading and unloading. The conveyor line includes a frame and an automated conveyor belt mounted on the frame.

[0011] The pressing mechanism is used to press and position the sealing strip at the opening of the packaging bag onto the packaging bag.

[0012] Preferably, the stacking rack is installed on the support frame, and the support frame is fixed on the machine frame.

[0013] Preferably, the stacking rack includes an L-shaped support installed on the left side of the support frame and a stacking frame installed on the back of the L-shaped support. The bottom of the stacking frame is provided with an outlet for the sealing strip to be discharged and for a vacuum suction cup to be inserted to adsorb the sealing strip.

[0014] As a preferred embodiment, the rotary reciprocating mechanism further includes a motor, a disc fixedly connected to the output shaft of the motor, an eccentric rod eccentrically arranged relative to the center of the disc, a connecting rod whose two ends are respectively rotatably connected to the eccentric rod and the shaft on the linear lifting platform, and a guide rail that cooperates with the linear lifting platform for guiding and sliding lifting.

[0015] The motor is fixed to the back of the support frame, and there are two sets of guide rails, which are fixed to the left side of the support frame on both sides of the stacking rack.

[0016] Driven by a motor, the disc rotates. With the cooperation of the eccentric rod, connecting rod, and shaft, the rotational motion of the disc is transmitted to the linear lifting platform, converting the rotation into linear motion.

[0017] Preferably, a guide frame is provided directly below the stacking rack to guide the vacuum suction cup and the sealing strip adsorbed by the vacuum suction cup to the sealing opening of the packaging bag. The guide frame is installed on the machine frame and has a guide groove.

[0018] Preferably, several pipe clamps are arranged at equal intervals on the horizontal support rod at the center of the electric rotary table, and a vacuum suction cup is installed and fixed on the pipe clamps.

[0019] Preferably, the pressing mechanism includes a pressing frame fixed on a support frame, a downward cylinder fixed on the pressing frame, and a pressing plate fixed to the end of the piston rod of the downward cylinder. The pressing plate is moved downward by the action of the downward cylinder to press and position the sealing strip on the packaging bag.

[0020] Compared with the prior art, the technical effects and advantages of this utility model are:

[0021] The packaging bag sealing strip installation structure uses a stacking rack to store the sealing strips, with a well-designed discharge port for easy retrieval. The transfer mechanism's rotary reciprocating mechanism converts the motor's rotational motion into the linear motion of a linear lifting platform. This, combined with an electric rotary table, enables the vacuum suction cup to perform a combined rotation and lifting motion, precisely adsorbing the sealing strip from the stacking rack and transferring it to the packaging bag's sealing area. The conveyor line utilizes an automated conveyor belt to load and unload the packaging bags, sequentially delivering them to each workstation. The pressing mechanism uses a downward cylinder to move the pressing plate downwards, pressing and positioning the sealing strip onto the packaging bag. The entire process forms an assembly line operation, with each mechanism performing its corresponding operation sequentially to complete the installation of the packaging bag sealing strip.

[0022] The clearly defined division of labor and close cooperation among the various departments have formed a continuous automated production process, avoiding the slowness and instability of manual operation. The transfer mechanism can quickly and accurately pick up and transfer the sealing strips, while the pressing mechanism can perform the pressing operation in a timely and stable manner, greatly shortening the installation time of the sealing strip for a single packaging bag, thereby improving the overall production speed. At the same time, through mechanized automation, human interference is reduced, ensuring accurate placement of the sealing strip and uniform pressing force, guaranteeing the quality of the sealing strips applied at the packaging table, and improving the product qualification rate.

[0023] Automated operation processes have replaced manual application of sealing strips, reducing the labor intensity of workers and labor costs, thus bringing better economic benefits to enterprises. Attached Figure Description

[0024] Figure 1 This is a diagram showing the state of the vacuum suction cup moving upward to adsorb the sealing strip of this utility model;

[0025] Figure 2 This is a diagram showing the vacuum suction cup of this utility model moving down and releasing the sealing strip;

[0026] Figure 3 This is a first-view view of the stacking rack of this utility model;

[0027] Figure 4 This is a second-view view of the stacking rack of this utility model;

[0028] Figure 5 This is a first-view view of the transfer mechanism of this utility model;

[0029] Figure 6 This is a second-view view of the transfer mechanism of this utility model;

[0030] Figure 7 This is a schematic diagram of the pressing mechanism of this utility model;

[0031] Figure 8 This is a schematic diagram of the structure of the guide frame of this utility model.

[0032] In the diagram: 1. Stacking rack; 11. L-shaped support; 12. Stacking frame; 13. Discharge port; 2. Sealing strip; 3. Transfer mechanism; 31. Support frame; 32. Rotary reciprocating mechanism; 33. Electric rotary table; 34. Linear lifting platform; 35. Horizontal support rod; 36. Vacuum suction cup; 37. Motor; 38. Disc; 39. Eccentric rod; 310. Shaft; 311. Connecting rod; 312. Guide rail; 313. Pipe clamp; 4. Conveyor line; 41. Frame; 42. Automated conveyor belt; 5. Pressing mechanism; 51. Pressing frame; 52. Downward cylinder; 53. Pressing plate; 6. Packaging bag; 7. Guide frame; 71. Guide channel. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] The following combination Figures 1 to 8 This application will be described in further detail.

[0035] This application discloses a packaging bag sealing strip installation structure, including a stacking rack 1, a transfer mechanism 3, a conveyor line 4, and a pressing mechanism 5. The stacking rack 1 is used to stack and place sealing strips 2; the transfer mechanism 3 is used to transfer the sealing strips 2 on the stacking rack 1 and attach them to the sealing opening of the packaging bag 6; the conveyor line 4 is used to transport the sealing bags for loading and unloading; and the pressing mechanism 5 is used to press and position the sealing strips 2 at the sealing opening of the packaging bag 6 onto the packaging bag 6. The conveyor line 4 includes a frame 41 and an automated conveyor belt 42 mounted on the frame 41.

[0036] The overall structure includes a stacking rack 1, a transfer mechanism 3, a conveyor line 4, and a pressing mechanism 5. Each mechanism has a clear division of labor. The conveyor line 4 realizes the automatic loading and unloading of packaging bags 6. The transfer mechanism 3 can quickly transfer the sealing strip 2 from the stacking rack 1 to the sealing area of ​​the packaging bag 6. The pressing mechanism 5 promptly presses and positions the sealing strip 2. The whole process forms an assembly line operation, which greatly improves the production efficiency of sealing the packaging bag 6.

[0037] Automated operation reduces human error, ensuring accurate placement and uniform pressure of the sealing strip 2, thus guaranteeing the quality of the sealing strip 2 applied at the packaging station. The automated process replaces manual application of the sealing strip 2, reducing labor intensity and costs for workers.

[0038] The stacking rack 1 is installed on the support frame 31, and the support frame 31 is fixed on the machine frame 41. The stacking rack 1 includes an L-shaped support 11 installed on the left side of the support frame 31 and a stacking frame 12 installed on the back of the L-shaped support 11. The bottom of the stacking frame 12 is provided with an outlet 13 for the sealing strip 2 to be discharged and for the vacuum suction cup 36 to be inserted to adsorb the sealing strip 2.

[0039] The stacking rack 1 is used to stack and place the sealing strips 2. The design of the L-shaped support 11 and the stacking frame 12 allows the sealing strips 2 to be neatly stacked and stored. The discharge port 13 at the bottom not only facilitates the sequential discharge of the sealing strips 2, but also provides a channel for the vacuum suction cup 36 to extend into and adsorb the sealing strips 2, ensuring smooth material retrieval.

[0040] The stacking rack 1 is installed on the support frame 31, and the support frame 31 is fixed on the frame 41. This multi-layer fixed structure design ensures the stability of the stacking rack 1 and avoids shaking or displacement during the material picking process, which would affect the adsorption and transfer of the sealing strip 2.

[0041] The stacked frame 12 is locked and fixed to the L-shaped support 11 by screws and nuts. The L-shaped support 11 is provided with multiple straight slots, which are inserted with screws, so it can accommodate the installation and fixing of stacked frames 12 of different sizes. Stacked frames 12 of different sizes can support sealing strips 2 of different sizes.

[0042] The transfer mechanism 3 includes a rotary reciprocating mechanism 32 that converts rotation to linear motion, an electric rotary table 33 fixed on a linear lifting platform 34 of the rotary reciprocating mechanism 32, and a vacuum suction cup 36 installed on a horizontal support rod 35 at the center of the electric rotary table 33. Several pipe clamps 313 are arranged at equal intervals on the horizontal support rod 35 at the center of the electric rotary table 33, and the vacuum suction cup 36 is installed and fixed on the pipe clamps 313.

[0043] The rotary reciprocating mechanism 32 also includes a motor 37, a disc 38 fixedly connected to the output shaft of the motor 37, an eccentric rod 39 eccentrically set relative to the center of the disc 38, a connecting rod 311 whose two ends are respectively rotatably connected to the eccentric rod 39 and the shaft 310 on the linear lifting platform 34, and a guide rail 312 that cooperates with the linear lifting platform 34 to guide the sliding lifting.

[0044] The motor 37 is fixed to the back of the support frame 31, and the guide rail 312 is provided in two sets and is fixed to the left side of the support frame 31 on both sides of the stacking rack 1.

[0045] The disk 38 is driven to rotate by the motor 37. With the cooperation of the eccentric rod 39, the connecting rod 311 and the shaft 310, the rotational motion of the disk 38 is transmitted to the linear lifting platform 34, converting the rotation into linear motion.

[0046] The rotary reciprocating mechanism 32 converts the rotary motion of the motor 37 into the linear motion of the linear lifting platform 34. Simultaneously, in conjunction with the electric rotary table 33, it enables the vacuum suction cup 36 on the horizontal support rod 35 to achieve a combined rotational and lifting motion. This complex motion allows the vacuum suction cup 36 to accurately pick up the sealing strip 2 from the bottom of the stacking rack 1 and transfer it to the sealing point of the packaging bag 6, improving the accuracy and flexibility of the transfer.

[0047] Several pipe clamps 313 are arranged at equal intervals on the horizontal support rod 35, and vacuum suction cups 36 are installed and fixed on the pipe clamps 313. This design can flexibly adjust the number of vacuum suction cups 36 according to actual production needs, and can adapt to adsorb sealing strips 2 of different lengths, further improving production efficiency.

[0048] In the rotary reciprocating mechanism 32, the motor 37 drives the disk 38 to rotate, and through the cooperation of the eccentric rod 39, connecting rod 311, and shaft 310, the rotational motion is smoothly transmitted to the linear lifting platform 34. At the same time, the arrangement of two sets of guide rails 312 ensures the guiding sliding lifting of the linear lifting platform 34, making the movement process more stable and reliable.

[0049] Below the stacking rack 1 is a guide frame 7 that guides the vacuum suction cup 36 and the sealing strip 2 adsorbed by the vacuum suction cup 36 to move down to the sealing opening of the packaging bag 6. The guide frame 7 is installed on the frame 41 and has a guide groove 71.

[0050] The guide frame 7 is located directly below the stacking rack 1. Its guide groove 71 guides the vacuum suction cup 36 and the adsorbed sealing strip 2, ensuring they move accurately downwards to the sealing opening of the packaging bag 6. This helps improve the accuracy of the sealing strip 2 transfer, ensuring it is accurately attached to the designated position on the packaging bag 6.

[0051] The pressing mechanism 5 includes a pressing frame 51 fixed on the support frame 31, a downward cylinder 52 fixed on the pressing frame 51, and a pressing plate 53 fixed on the piston rod end of the downward cylinder 52. The pressing plate 53 is moved downward by the action of the downward cylinder 52 to press and position the sealing strip 2 on the packaging bag 6.

[0052] The pressing mechanism 5 uses a downward cylinder 52 to move the pressing plate 53 downward, pressing and positioning the sealing strip 2 onto the packaging bag 6. The cylinder's stable power output provides uniform pressure, ensuring a tight fit between the sealing strip 2 and the packaging bag 6, thus improving the pressing quality. The control of the downward cylinder 52 is relatively simple; the electrical control system can easily move the pressing plate 53 up and down, facilitating coordination with the conveyor line 4 and the transfer mechanism 3, thereby improving the automation level of the entire production line.

[0053] The operation procedure for installing the sealing strip on this packaging bag is as follows:

[0054] Preparation stage

[0055] The sealing strips 2 are neatly stacked and placed in the stacking frame 12 of the stacking rack 1. The stacking frame 12 is installed on the L-shaped support 11 by means of screws and nuts and the straight groove on the L-shaped support 11. It is adjusted according to the size of the sealing strips 2 to ensure that sealing strips 2 of different sizes can be stored stably.

[0056] Check whether each part of the equipment, such as the conveyor line 4, the transfer mechanism 3, and the pressing mechanism 5, is operating normally. Then start the equipment, and the automated conveyor belt 42 will begin to operate.

[0057] Material feeding stage

[0058] Packaging bag 6 is placed on automated conveyor belt 42 from one end of conveyor line 4, and automated conveyor belt 42 transports packaging bag 6 toward the upper sealing strip 2 station.

[0059] Material extraction stage

[0060] When the packaging bag 6 is conveyed to the upper sealing strip 2 station, the transfer mechanism 3 starts to work. The motor 37 in the rotary reciprocating mechanism 32 drives the disc 38 to rotate, and under the combined action of the eccentric rod 39, the connecting rod 311 and the shaft 310, the linear lifting platform 34 moves upward.

[0061] Simultaneously, the electric rotary table 33 moves, causing the horizontal support rod 35 to rotate, which in turn causes the suction port of the vacuum suction cup 36 on the horizontal support rod 35 to rotate upward. The vacuum suction cup 36 extends through the discharge port 13 at the bottom of the stacking frame 12 and adsorbs the sealing strip 2 at the bottom of the stacking rack 1.

[0062] Transition Phase

[0063] After the sealing strip 2 is adsorbed, the rotary reciprocating mechanism 32 continues to operate, and the linear lifting platform 34 moves downward. The electric rotary table 33 operates again, driving the horizontal support rod 35 to rotate, causing the adsorption port of the vacuum suction cup 36 on the horizontal support rod 35 to rotate downward. During this process, the guide frame 7 directly below the stacking rack 1 plays a role, and its guide groove 71 guides the vacuum suction cup 36 and the adsorbed sealing strip 2, so that they move accurately downward to the sealing opening of the packaging bag 6.

[0064] Finally, the adhesive-bonded sealing strip 2 is transferred and affixed to the opening of the packaging bag 6.

[0065] Pressing stage

[0066] The automated conveyor belt 42 continues to operate, transporting the packaging bag 6 with the sealing strip 2 attached to it to the pressing station. The pressing mechanism 5 starts working, and the downward cylinder 52 on the pressing frame 51 is activated, driving the pressing plate 53 at the end of the piston rod to move down, pressing and positioning the sealing strip 2 at the opening of the packaging bag 6 onto the packaging bag 6, ensuring that the sealing strip 2 and the packaging bag 6 are tightly attached.

[0067] Material feeding stage

[0068] The pressed packaging bag 6 continues to be conveyed by the automated conveyor belt 42, and is unloaded from the other end of the conveyor line 4 to enter the subsequent packaging or storage stage. Afterwards, the equipment repeats the above operation process to install the sealing strip 2 on the next packaging bag 6.

[0069] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sealing strip installation structure for packaging bags, characterized in that, include: Stacking rack (1) is used to stack and place sealing strips (2); The transfer mechanism (3) is used to transfer the sealing strip (2) on the stacking rack (1) and attach it to the sealing opening of the packaging bag (6). The transfer mechanism (3) includes a rotary reciprocating mechanism (32) that rotates to linear motion, an electric rotary table (33) fixed on the linear lifting platform (34) of the rotary reciprocating mechanism (32), and a vacuum suction cup (36) installed on the horizontal support rod (35) at the center of the electric rotary table (33). The conveyor line (4) is used for conveying sealed bags for loading and unloading. The conveyor line (4) includes a frame (41) and an automated conveyor belt (42) installed on the frame (41). The pressing mechanism (5) is used to press and position the sealing strip (2) at the opening of the packaging bag (6) onto the packaging bag (6).

2. The packaging bag sealing strip installation structure according to claim 1, characterized in that: The stacking rack (1) is installed on the support frame (31), and the support frame (31) is fixed on the machine frame (41).

3. The packaging bag sealing strip installation structure according to claim 2, characterized in that: The stacking rack (1) includes an L-shaped support (11) installed on the left side of the support frame (31) and a stacking frame (12) installed on the back of the L-shaped support (11). The bottom of the stacking frame (12) is provided with an outlet (13) for the sealing strip (2) to discharge and for the vacuum suction cup (36) to extend into and adsorb the sealing strip (2).

4. The packaging bag sealing strip installation structure according to claim 2, characterized in that: The rotary reciprocating mechanism (32) also includes a motor (37), a disc (38) fixedly connected to the output shaft of the motor (37), an eccentric rod (39) eccentrically set relative to the center of the disc (38), a connecting rod (311) rotatably connected at both ends to the eccentric rod (39) and the shaft (310) on the linear lifting platform (34) respectively, and a guide rail (312) that guides the linear lifting platform (34) to slide and lift. The motor (37) is fixed on the back of the support frame (31), and the guide rail (312) is provided in two sets and is fixed on the left side of the support frame (31) on both sides of the stacking rack (1); Driven by the motor (37), the disc (38) rotates. With the cooperation of the eccentric rod (39), connecting rod (311) and shaft (310), the rotational motion of the disc (38) is transmitted to the linear lifting platform (34), turning the rotation into linear motion.

5. The packaging bag sealing strip installation structure according to claim 2, characterized in that: The stacking rack (1) is provided with a guide frame (7) directly below it to guide the vacuum suction cup (36) and the sealing strip (2) adsorbed by the vacuum suction cup (36) to the sealing opening of the packaging bag (6). The guide frame (7) is installed on the frame (41) and is provided with a guide groove (71).

6. The packaging bag sealing strip installation structure according to claim 1, characterized in that: Several pipe clamps (313) are arranged at equal intervals on the horizontal support rod (35) at the center of the electric rotary table (33), and the vacuum suction cup (36) is installed and fixed on the pipe clamps (313).

7. The packaging bag sealing strip installation structure according to claim 2, characterized in that: The pressing mechanism (5) includes a pressing frame (51) fixed on the support frame (31), a downward cylinder (52) fixed on the pressing frame (51), and a pressing plate (53) fixed on the piston rod end of the downward cylinder (52). The pressing plate (53) is moved down by the action of the downward cylinder (52) to press and position the sealing strip (2) on the packaging bag (6).