Edge folding mechanism of sewing machine for flexible freight bag production

Abstract

The utility model provides an edge folding mechanism of a sewing machine for producing flexible freight bags, which comprises a working table, an edge folding mechanism and a sewing mechanism, the fixing plate is fixedly arranged at the bottom of the workbench, a first driving telescopic piece is fixedly installed in the fixing plate, and a sliding block is fixedly installed at the movable end of the first driving telescopic piece; and the moving plate is fixedly mounted at the top of the sliding block. According to the edge folding mechanism of the sewing machine for flexible freight bag production, through mutual cooperation of the movable plate, the groove, the second drive telescopic piece, the movable block, the elastic plate and other structures, when the edge folding mechanism is used, the second telescopic piece is contracted, and therefore the elastic plate moves to the top of a flexible freight bag; and the elastic plate is located on the inner side face of the groove, so that the flexible freight bag located at the top of the movable plate can be limited, the flexible freight bag is prevented from moving, and the subsequent edge folding effect of the flexible freight bag is improved.

Description

Technical Field

[0001] This utility model relates to the field of container bag production technology, and in particular to a folding mechanism for a sewing machine used in container bag production. Background Technology

[0002] FIBCs (Flexible Intermediate Bulk Containers) are flexible transport packaging containers with advantages such as moisture resistance, dust protection, radiation resistance, and robust safety, while also possessing sufficient structural strength. Due to their ease of loading, unloading, and handling, FIBCs have significantly improved efficiency and have experienced rapid development in recent years. FIBCs are generally made of polyester fibers such as polypropylene and polyethylene, and their production involves edge folding to increase edge strength.

[0003] As described in the prior art patent application CN 222310019 U, it uses a folding mechanism worktable and a placement platform above it. The worktable has a moving groove containing a sliding block, the top surface of which is fixedly connected to the placement platform. Supports 1 and 2 are symmetrically arranged on both sides of the worktable. This utility model's folding mechanism for ton bag production utilizes the coordinated movement of the folding plate and the horizontal movement of the placement platform to achieve folding of the ton bags. The worktable has a calibration scale for precise control of the folding amount, thus effectively controlling the folding quality. Support rollers are provided below the placement platform to ensure stability during movement. A sewing groove is provided on the placement platform for easy integration with a sewing device to perform sewing processing on the folded area.

[0004] However, when this folding device is in use, there is no structure to limit the movement of the FIBC at the contact point between the placement table and the folding plate. When the folding plate moves one end of the FIBC upward, it also moves the FIBC on the placement table upward at the same time. This can easily affect the folding effect of the FIBC during subsequent folding.

[0005] Therefore, it is necessary to provide a folding mechanism for a sewing machine used in the production of bulk bags to solve the above-mentioned technical problems. Utility Model Content

[0006] This invention provides a folding mechanism for a sewing machine used in the production of FIBCs (Flexible Intermediate Bulk Containers), which solves the problem of the lack of a structure to limit the position of the FIBC on the placement table, thus affecting the subsequent folding effect of the FIBC.

[0007] To solve the above-mentioned technical problems, this utility model provides a folding mechanism for a sewing machine used in the production of container bags, comprising:

[0008] The workbench has a sliding groove inside;

[0009] A fixed plate is fixedly placed at the bottom of the workbench. A first drive telescopic component is fixedly installed inside the fixed plate, and a slider is fixedly installed at the moving end of the first drive telescopic component.

[0010] A movable plate is fixedly installed on the top of the slider. Multiple sewing grooves are opened inside one end of the movable plate. Grooves are opened on both sides of the top end of the movable plate. A second drive telescopic component is fixedly installed on one end of each side of the movable plate. A movable block is fixedly installed on the movable end of the second drive telescopic component. An elastic plate is fixedly installed on one side of the movable block.

[0011] The third drive telescopic component is fixedly installed at the bottom of the workbench. A movable frame is fixedly installed at the bottom of the third drive telescopic component. The movable frame is slidably connected to the inside of the workbench. A folded edge plate is fixedly installed at the top of the movable frame.

[0012] Preferably, the bottom of the workbench is provided with two scales, which are respectively located on both sides of the slide groove.

[0013] Preferably, the slider is slidably connected to the inner side of the groove, and the elastic plate is disposed on the inner side of the groove.

[0014] Preferably, one end of the movable plate abuts against one side of the folded edge plate.

[0015] Preferably, support legs are fixedly installed around the bottom of the workbench.

[0016] Preferably, the top of the elastic plate is provided with a mounting groove, a rotating shaft is fixedly installed on the inner side of the mounting groove, a rotating block is rotatably connected to the outer side of the rotating shaft, and a pull ring is fixedly installed on one side of the rotating block.

[0017] Preferably, the pull ring is disposed on the inner side of the mounting groove.

[0018] Compared with related technologies, the folding mechanism of the sewing machine for producing FIBCs provided by this utility model has the following advantages:

[0019] This utility model provides a folding mechanism for a sewing machine used in the production of FIBCs (Flexible Intermediate Bulk Containers). The mechanism comprises a moving plate, a groove, a second drive telescopic component, a moving block, and an elastic plate, which work together to form a mechanism. During operation, the second telescopic component retracts, causing the elastic plate to move to the top of the FIBC and position itself inside the groove. This mechanism limits the movement of the FIBC at the top of the moving plate, preventing it from shifting and improving the folding effect of the FIBC during subsequent folding. Attached Figure Description

[0020] Figure 1 A schematic diagram of the first embodiment of the folding mechanism of a sewing machine for producing container bags provided by this utility model;

[0021] Figure 2 for Figure 1 The diagram shows another perspective of the structure;

[0022] Figure 3 for Figure 1 The enlarged schematic diagram of part A shown below;

[0023] Figure 4 This is a schematic diagram of the second embodiment of the folding mechanism of a sewing machine for producing container bags provided by this utility model.

[0024] The following are the labels in the diagram: 1. Workbench, 11. Slide groove, 12. Support leg, 13. Scale, 2. Fixed plate, 21. First drive telescopic component, 22. Slider, 3. Moving plate, 31. Sewing groove, 32. Groove, 33. Second drive telescopic component, 34. Moving block, 35. Elastic plate, 4. Third drive telescopic component, 41. Moving frame, 42. Folded edge plate, 5. Mounting groove, 51. Rotating shaft, 52. Rotating block, 53. Pull ring. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] First Embodiment

[0027] Please refer to the following: Figure 1 , Figure 2 , Figure 3 ,in, Figure 1 A schematic diagram of the first embodiment of the folding mechanism of a sewing machine for producing container bags provided by this utility model; Figure 2 for Figure 1 The diagram shows another perspective of the structure; Figure 3 for Figure 1 The enlarged schematic diagram of part A is shown. A folding mechanism for a sewing machine used in the production of bulk bags includes: a worktable 1, wherein a groove 11 is provided inside the worktable 1;

[0028] A fixed plate 2 is fixedly placed at the bottom of the workbench 1. A first drive telescopic component 21 is fixedly installed inside the fixed plate 2. A slider 22 is fixedly installed at the moving end of the first drive telescopic component 21.

[0029] The movable plate 3 is fixedly installed on the top of the slider 22. Multiple sewing grooves 31 are opened inside one end of the movable plate 33. Grooves 31 are opened on both sides of the top end of the movable plate 3. A second drive telescopic member 33 is fixedly installed on one end of both sides of the movable plate 3. A movable block 34 is fixedly installed on the moving end of the second drive telescopic member 33. An elastic plate 35 is fixedly installed on one side of the movable block 34.

[0030] The third drive telescopic component 4 is fixedly installed at the bottom of the workbench 1. A movable frame 41 is fixedly installed at the bottom of the third drive telescopic component 4. The movable frame 41 is slidably connected to the inside of the workbench 1. A folded edge plate 42 is fixedly installed at the top of the movable frame 41.

[0031] The bottom of the workbench 1 is provided with two scales 13, which are respectively located on both sides of the slide groove 11.

[0032] The slider 22 is slidably connected to the inner side of the groove 11, and the elastic plate 35 is disposed on the inner side of the groove 32.

[0033] One end of the movable plate 3 abuts against one side of the folded edge plate 41.

[0034] Support legs 12 are fixedly installed around the bottom of the workbench 1.

[0035] The first drive telescopic component 21, the second drive telescopic component 33, and the third drive telescopic component 4 are all electric telescopic components. When in use, they can drive the moving plate 3, the elastic plate 35, and the folding plate 42 to move respectively.

[0036] With the setting of scale 13, when using it, the two sides of one end of the container bag can be accurately moved to a horizontal state, thereby avoiding deviation during subsequent sewing;

[0037] When the elastic plate 35 is inside the groove 32, the top of the elastic plate 35 is lower than the top of the movable plate 3.

[0038] The working principle of the folding mechanism of the sewing machine for producing FIBCs provided by this utility model is as follows:

[0039] During the folding process of the ton bag, the moving plate 3 moves to the left side of the folding plate 42, with the upper surface of the folding plate 42 flush with the upper surface of the moving plate 3. The ton bag is placed on the moving plate 3, ensuring that one end of the ton bag is aligned with the two sets of scales 13 according to uniform specifications. Then, one end of the elastic plate 35 is lifted, and the second drive telescopic component 33 is retracted, causing the elastic plate 35 to move to the top of the ton bag, thus limiting the movement of the ton bag. Afterward, the third drive telescopic component 4 is activated to retract, causing the folding plate 42 to move upward. The folding plate 42 lifts the folded edge of the ton bag, raising it to a height where the bottom surface of the folding plate 42 is slightly higher than the upper surface of the moving plate 3. The first drive telescopic component 21 extends, driving the slider 22 and the moving plate 3 to move synchronously, folding the edge of the ton bag. The moving plate 3 moves to the right side of the folding plate 42. The moving plate 3 has a sewing groove 31, which facilitates the sewing machine head to sew the folded edge of the ton bag. There are two or more sewing grooves 31. Multiple sewing can improve the strength of the folded edge, thereby enhancing the overall load-bearing capacity of the ton bag.

[0040] Compared with related technologies, the folding mechanism of the sewing machine for producing FIBCs provided by this utility model has the following advantages:

[0041] The movable plate 3, the groove 32, the second drive telescopic component 33, the movable block 34, and the elastic plate 35 work together to form a structure that, during use, causes the second telescopic component 33 to retract, thereby moving the elastic plate 35 to the top of the container bag and positioning the elastic plate 35 on the inner side of the groove 32. This limits the container bag at the top of the movable plate 3, preventing it from moving and thus improving the effect of subsequent folding of the container bag.

[0042] Second Embodiment

[0043] Please refer to the following: Figure 4 Based on the folding mechanism of a sewing machine for producing FIBCs provided in the first embodiment of this application, the second embodiment of this application proposes another folding mechanism for a sewing machine for producing FIBCs. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the separate implementation of the first embodiment.

[0044] Specifically, the difference in the folding mechanism of the sewing machine for producing FIBCs provided in the second embodiment of this application is that the folding mechanism of the sewing machine for producing FIBCs has an installation groove 5 on the top of the elastic plate 35, a rotating shaft 51 is fixedly installed on the inner side of the installation groove 5, a rotating block 52 is rotatably connected to the outer side of the rotating shaft 51, and a pull ring 53 is fixedly installed on one side of the rotating block 52.

[0045] The pull ring 53 is disposed on the inner side of the mounting groove 5.

[0046] The working principle of the folding mechanism of the sewing machine for producing FIBCs provided by this utility model is as follows:

[0047] When in use, if it is necessary to lift one end of the elastic plate 35 and then put the container bag into the bottom of the elastic plate 35, the user can rotate the pull ring 53 to move the pull ring 53 out from the inner side of the mounting groove 5, and then pull the pull ring 53 to lift one end of the elastic plate 35.

[0048] Compared with related technologies, the folding mechanism of the sewing machine for producing FIBCs provided by this utility model has the following advantages:

[0049] The structure, including the mounting groove 5, the rotating shaft 51, the rotating block 52, and the pull ring 53, works together to allow the user to easily place the container bag into the bottom of the elastic plate 35 by pulling up one end of the elastic plate 35 during use.

[0050] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A folding mechanism for a sewing machine used in the production of bulk bags, characterized in that, include: The workbench has a sliding groove inside; A fixed plate is fixedly placed at the bottom of the workbench. A first drive telescopic component is fixedly installed inside the fixed plate, and a slider is fixedly installed at the moving end of the first drive telescopic component. A movable plate is fixedly installed on the top of the slider. Multiple sewing grooves are opened inside one end of the movable plate. Grooves are opened on both sides of the top end of the movable plate. A second drive telescopic component is fixedly installed on one end of each side of the movable plate. A movable block is fixedly installed on the movable end of the second drive telescopic component. An elastic plate is fixedly installed on one side of the movable block. The third drive telescopic component is fixedly installed at the bottom of the workbench. A movable frame is fixedly installed at the bottom of the third drive telescopic component. The movable frame is slidably connected to the inside of the workbench. A folded edge plate is fixedly installed at the top of the movable frame.

2. The folding mechanism of a sewing machine for producing FIBCs according to claim 1, characterized in that, The bottom of the workbench is provided with two scales, which are respectively located on both sides of the slide groove.

3. The folding mechanism of a sewing machine for producing FIBCs according to claim 1, characterized in that, The slider is slidably connected to the inner side of the groove, and the elastic plate is disposed on the inner side of the groove.

4. The folding mechanism of a sewing machine for producing FIBCs according to claim 1, characterized in that, One end of the movable plate abuts against one side of the folded edge plate.

5. The folding mechanism of a sewing machine for producing FIBCs according to claim 1, characterized in that, The workbench is fixedly equipped with support feet on all four sides of its bottom.

6. The folding mechanism of a sewing machine for producing FIBCs according to claim 1, characterized in that, The top of the elastic plate is provided with an installation groove, a rotating shaft is fixedly installed on the inner side of the installation groove, a rotating block is rotatably connected to the outer side of the rotating shaft, and a pull ring is fixedly installed on one side of the rotating block.

7. The folding mechanism of a sewing machine for producing FIBCs according to claim 6, characterized in that, The pull ring is disposed on the inner side of the mounting groove.

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