Sewing machine for round material opening of flexible freight bag

By designing a circular feed port sewing machine for container bags, the servo motor and electric slider system are used to automatically adjust the sewing position, solving the problem of time-consuming and labor-intensive manual sewing and achieving efficient and stable sewing results.

CN223999098UActive Publication Date: 2026-03-17CHANGZHOU HUIDE PACKAGING MATERIALS LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520726234.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-17
Publication Date
2026-03-17
Estimated Expiration
2035-04-17

AI Technical Summary

Technical Problem

The traditional method of sewing the round opening of a container bag relies on manual operation, which is time-consuming, labor-intensive, and produces inconsistent quality, failing to meet the needs of large-scale production.

Method used

Design a circular feed port sewing machine for FIBCs, which uses a servo motor to drive a bidirectional screw and an electric slider system to automatically adjust the height and position of the FIBC and sew it together with the sewing machine.

Benefits of technology

It improves the production efficiency of FIBCs, reduces labor intensity, and ensures the consistency and stability of sewing quality.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223999098U_ABST
    Figure CN223999098U_ABST
Patent Text Reader

Abstract

The utility model discloses a flexible freight bag circular material opening sewing machine which comprises a base, a moving assembly is installed on the top of the base, a supporting table is installed on the top of the moving assembly, a bearing in the supporting table is connected with a two-way screw rod, a flexible freight bag filled with materials is placed on the top of a placing frame, and a servo motor is started to drive the two-way screw rod to rotate. The two-way screw enables the threaded blocks in threaded connection with the two ends to move synchronously, the threaded blocks push the hinged plates, the hinged plates push the supporting bases hinged to the other ends and the containing frames installed on the tops of the supporting bases to move upwards or downwards in the supporting table, and the height of the flexible freight bags is adjusted according to the sewing positions of the flexible freight bags. The electric sliding block slides on the outer side of the electric sliding rod and drives the supporting table installed on the top to move, and when the flexible freight bag on the top of the supporting table passes through the sewing machine, sewing treatment is conducted on a circular material opening of the flexible freight bag, so that the production efficiency of the flexible freight bag is improved, and meanwhile the labor force of workers is reduced.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of container bag processing technology, specifically a container bag circular opening sewing machine. Background Technology

[0002] In the modern logistics and packaging industry, FIBCs (Flexible Intermediate Bulk Containers) are widely used as important transportation and storage containers in many fields such as chemicals, food, and building materials. With their large capacity, reusability, and ease of handling, FIBCs greatly improve logistics efficiency and reduce packaging costs. The design of the FIBC's sluice gate is a key part to ensure its sealing and prevent material leakage, and the round sluice gate has become the first choice in many application scenarios due to its good closure performance and applicability.

[0003] Traditional methods of sewing the circular opening of FIBCs rely heavily on manual operation. Manual sewing is not only time-consuming and labor-intensive, but also susceptible to human factors such as uneven sewing force and inconsistent stitch spacing, resulting in inconsistent sewing quality that cannot meet the needs of large-scale production. Therefore, it is necessary to design a FIBC circular opening sewing machine to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a circular feed port sewing machine for container bags to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a circular feed port sewing machine for container bags, including a base, a movable component installed on the top of the base, a support platform installed on the top of the movable component, a bidirectional screw connected to the internal bearing of the support platform, and a servo motor installed on one side of the support platform, which drives the bidirectional screw to rotate.

[0006] A placement frame is slidably connected to the top of the support platform. Threaded blocks are threaded to both ends of the outer side of the bidirectional screw. Two sets of support seats are installed at the bottom center of the placement frame. Hinges are hinged between the two sets of threaded blocks and the support seats. A sewing machine is installed on the top of the base.

[0007] Preferably, the moving component includes a support plate, an electric slide bar, and an electric slider. Two sets of support plates are respectively installed at the top two ends of the base. The electric slide bar is installed between the two sets of support plates. The electric slider is installed at the bottom middle of the support platform and is slidably connected to the outside of the electric slide bar.

[0008] Preferably, a baffle is installed at one top end of the placement frame, and a sliding groove is provided inside the placement frame, with a movable baffle slidably connected inside the sliding groove.

[0009] Preferably, a bolt is provided on one side of the support platform, and the bolt passes through the slide groove and is threaded into the interior of the movable baffle.

[0010] Preferably, a support column is installed on the top of the base, the sewing machine is installed on one side of the support column, and a fixing block is installed on one side of the support column.

[0011] Preferably, two sets of convex plates are installed at the top two ends of the base, and two sets of concave sliders are installed at the bottom two ends of the support platform, with the concave sliders slidably connected to the outside of the convex plates.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. By placing the filled FIBC (Flexible Intermediate Bulk Container) on top of the placement frame, the servo motor drives the bidirectional screw to rotate. The bidirectional screw causes the threaded blocks connected at both ends to move synchronously. The threaded blocks push the hinged plate, which in turn pushes the support seat at the other end, and the placement frame mounted on top of the support seat, to move up or down inside the support platform. The height of the FIBC is adjusted according to the sewing position. The electric slider moves outside the electric slide rod, and the electric slider drives the support platform mounted on top to move. When the FIBC on top of the support platform passes the sewing machine, the circular opening of the FIBC is sewn. This improves the production efficiency of FIBCs while reducing manual labor.

[0014] 2. By using a baffle installed at one end of the top of the placement frame in conjunction with an adjustable movable baffle, the container bags placed on top of the placement frame are blocked. At the same time, the movable baffle can slide in the slide groove. Bolts are passed through the slide groove and threaded into the inside of the movable baffle. One side of the bolt abuts against one side of the placement frame. The friction between the bolt and the placement frame is used to fix the adjusted movable baffle and adjust the placement space of the placement frame. The support platform drives multiple sets of concave sliders installed at the bottom to slide on the outside of two sets of convex plates installed at the top of the base, improving the stability of the support platform when it moves. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the support platform of this utility model;

[0017] Figure 3 This utility model Figure 1 Enlarged diagram of point A.

[0018] In the diagram: 1. Base, 2. Support plate, 3. Electric slide bar, 4. Electric slider, 5. Support platform, 6. Bidirectional screw, 7. Servo motor, 8. Placement frame, 9. Threaded block, 10. Support seat, 11. Hinge plate, 12. Baffle, 13. Slide groove, 14. Moving baffle, 15. Bolt, 16. Support column, 17. Sewing machine, 18. Fixing block, 19. Convex plate, 20. Concave slider. Detailed Implementation

[0019] 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.

[0020] Example 1

[0021] Please refer to Figure 1-3 As shown, this utility model provides a circular feed port sewing machine for container bags, including a base 1, a movable component installed on the top of the base 1, a support platform 5 installed on the top of the movable component, a bidirectional screw 6 connected to the internal bearing of the support platform 5, and a servo motor 7 installed on one side of the support platform 5, which drives the bidirectional screw 6 to rotate.

[0022] The top of the support platform 5 is slidably connected to a placement frame 8. The outer ends of the bidirectional screw 6 are threadedly connected to threaded blocks 9. Two sets of support seats 10 are installed at the bottom middle of the placement frame 8. The two sets of threaded blocks 9 are hinged to the support seats 10. A sewing machine 17 is installed on the top of the base 1.

[0023] Specifically, by placing the filled container bag on top of the placement frame 8, the servo motor 7 is turned on to drive the bidirectional screw 6 to rotate. The bidirectional screw 6 causes the threaded blocks 9 connected at both ends to move synchronously. The threaded blocks 9 push the hinged hinge plate 11, which in turn pushes the support seat 10, which is hinged at the other end, and the placement frame 8 installed on the top of the support seat 10 to move up or down inside the support platform 5. The height of the container bag is adjusted according to the sewing position of the container bag. The moving component is turned on to push the support platform 5 to move. When the container bag on the top of the support platform 5 passes the sewing machine 17, the circular opening of the container bag is sewn.

[0024] The movable component includes a support plate 2, an electric slide bar 3, and an electric slider 4. Two sets of support plates 2 are respectively installed at the top ends of the base 1. The electric slide bar 3 is installed between the two sets of support plates 2. The electric slider 4 is installed at the bottom middle of the support platform 5 and is slidably connected to the outside of the electric slide bar 3. Through the electric slide bar 3 installed between the two sets of support plates 2, the electric slider 4 moves on the outside of the electric slide bar 3. At the same time, the electric slider 4 drives the support platform 5 installed at the top to move.

[0025] Wherein: a baffle 12 is installed at the top end of the placement frame 8, and a sliding groove 13 is opened inside the placement frame 8. A movable baffle 14 is slidably connected inside the sliding groove 13. By using the baffle 12 installed at the top end of the placement frame 8 in conjunction with the adjustable movable baffle 14, the container bag placed at the top of the placement frame 8 is blocked. At the same time, the movable baffle 14 can slide in the sliding groove 13 to adjust the placement space of the placement frame 8.

[0026] Among them, a bolt 15 is provided on one side of the support platform 5. The bolt 15 passes through the slide groove 13 and is threaded into the inside of the movable baffle 14. By passing the bolt 15 through the slide groove 13 and threading it into the inside of the movable baffle 14, one side of the bolt 15 abuts against one side of the placement frame 8. The friction between the bolt 15 and the placement frame 8 is used to fix the adjusted movable baffle 14.

[0027] Wherein: a support column 16 is installed on the top of the base 1, a sewing machine 17 is installed on one side of the support column 16, and a fixing block 18 is installed on one side of the support column 16. The support is provided by the support column 16 installed on the top of the base 1. When the container bag passes the side of the fixing block 18, the sewing machine 17 installed on one side of the support column 16 sews the material port of the container bag.

[0028] Specifically: two sets of convex plates 19 are installed at the top two ends of the base 1, and two sets of concave sliders 20 are installed at the bottom two ends of the support platform 5. The concave sliders 20 are slidably connected to the outside of the convex plates 19. The support platform 5 drives the multiple sets of concave sliders 20 installed at the bottom to slide on the outside of the two sets of convex plates 19 installed at the top of the base 1, thereby improving the stability of the support platform 5 when it moves.

[0029] Working Principle: This utility model provides a circular feed port sewing machine for FIBCs (Flexible Intermediate Bulk Containers). In use, the filled FIBC is placed on top of the placement frame 8. A baffle 12 installed at one end of the top of the placement frame 8, in conjunction with an adjustable movable baffle 14, blocks the FIBC placed on top of the placement frame 8. Simultaneously, the movable baffle 14 can slide within the slide groove 13 to adjust the placement space of the placement frame 8. The servo motor 7 is activated, driving the bidirectional screw 6 to rotate. The bidirectional screw 6 causes the threaded blocks 9 connected at both ends to move synchronously. The threaded blocks 9 push the hinged plate 11, causing... The hinge plate 11 pushes the support base 10, which is hinged at the other end, and the placement frame 8 installed on the top of the support base 10 to move up or down inside the support platform 5. The height of the container bag is adjusted according to the sewing position of the container bag. The electric slider 4 moves outside the electric slide rod 3. At the same time, the electric slider 4 drives the support platform 5 installed on the top to move. When the support platform 5 moves the container bag placed on the top to the side of the fixed block 18, the sewing machine 17 sews the container bag opening. The contents not described in detail in this description are existing technologies known to those skilled in the art.

[0030] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A bag-on-foil sewing machine comprising a base (1), characterised in that: The top of the base (1) is provided with a moving assembly, the top of the moving assembly is provided with a support table (5), the inside of the support table (5) is provided with a two-way screw rod (6) in bearing connection, one side of the support table (5) is provided with a servo motor (7) and the servo motor (7) drives the two-way screw rod (6) to rotate; The top of the support table (5) is slidably connected with a placing frame (8), the outer sides of the two ends of the two-way screw rod (6) are respectively threadedly connected with threaded blocks (9), the bottom of the placing frame (8) is respectively provided with two groups of support seats (10), the two groups of threaded blocks (9) and the support seats (10) are respectively hingedly connected with hinge plates (11), and the top of the base (1) is provided with a suturing machine (17).

2. A bag on a roll sewing machine as claimed in claim 1, wherein: The moving assembly comprises support plates (2), electric slide rods (3) and electric slide blocks (4), two groups of the support plates (2) are respectively arranged at the two ends of the top of the base (1), the electric slide rod (3) is arranged between the two groups of support plates (2), and the electric slide block (4) is arranged at the middle end of the bottom of the support table (5) and slidably connected with the outer side of the electric slide rod (3).

3. A bag on a roll sewing machine as claimed in claim 1, wherein: The top of the placing frame (8) is provided with a baffle (12) at one end, the inside of the placing frame (8) is provided with a sliding groove (13), and the inside of the sliding groove (13) is slidably connected with a movable baffle (14).

4. A bag on a roll sewing machine as claimed in claim 2, wherein: One side of the support table (5) is provided with a bolt (15), the bolt (15) penetrates through the sliding groove (13) and is threadedly connected in the inside of the movable baffle (14).

5. A bag on a roll sewing machine as claimed in claim 1, wherein: The top of the base (1) is provided with a support column (16), the suturing machine (17) is arranged at one end of the support column (16), and one side of the support column (16) is provided with a fixed block (18).

6. A bag on a roll sewing machine as claimed in claim 5, wherein: The top of the base (1) is provided with two groups of convex plates (19) at the two ends, the bottom of the support table (5) is provided with two groups of concave slide blocks (20) and the concave slide blocks (20) are slidably connected with the outer sides of the convex plates (19).