A stop device for a film packaging machine

Abstract

The utility model provides a kind of limiting device for film packaging machine. Including: support frame;Support pole, the support pole is rotatably connected in the one side of the support frame, and the periphery of the support pole is equipped with sliding slot;Limiting component, the limiting component is set in the inner side of the support pole, and the limiting component includes two-way threaded rod, and the both ends of the outer side of the two-way threaded rod are all threadedly connected with threaded ring, and the periphery of two the threaded ring is rotatably connected with connecting rod.The utility model provides a kind of limiting device for film packaging machine, by the setting of limiting component and support pole, when using, two-way threaded rod is rotated, to drive two threaded rings to move to middle, and then by connecting rod, abutment strip is pushed and slides along sliding slot outward, when abutment strip extends outward, the actual support outer diameter of support pole can be increased, so as to adapt to different inner diameter film roll, to increase the adaptability of device.

Description

Technical Field

[0001] This utility model relates to the technical field of limiting devices for film packaging machines, and in particular to a limiting device for film packaging machines. Background Technology

[0002] In the modern packaging industry, film packaging machines are indispensable automated production equipment, and their performance and stability directly affect product packaging quality and production efficiency. With the diversification and personalization of market demands, film packaging machines not only require high-speed and high-efficiency packaging capabilities but also need continuous improvement in precision control and safe operation. Among these, the limiting device, as a crucial component of the film packaging machine, plays a vital role in ensuring accurate positioning during the packaging process, preventing mechanical collisions, and enhancing overall operational stability through its design and optimization.

[0003] As described in the prior art patent application CN 223001848 U, it includes a first mounting plate, a second mounting plate, a film roll, and a support rod. A horizontal strip-shaped groove is formed on the top of the outer wall of the support rod from left to right. A left rotating shaft seat is slidably connected to the left end of the strip-shaped groove. A left connecting groove is formed on the right side of the left rotating shaft seat, and a left limiting block is rotatably installed in the left connecting groove. A left connecting screw hole is formed through the left and right sides at the lower end of the left rotating shaft seat. A right rotating shaft seat is slidably connected to the right end of the strip-shaped groove. A right connecting groove is formed on the left side of the right rotating shaft seat, and a right limiting block is rotatably installed in the right connecting groove. A right connecting screw hole is formed through the left and right sides at the lower end of the right rotating shaft seat. This invention facilitates the adjustment of the limiting mechanism and allows for adjustment of the limiting mechanism's size according to the size of the film roll, thus improving its practicality.

[0004] However, the device has obvious shortcomings in practical applications. Since the outer diameter of the support rod is fixed, it cannot adapt well to changes in the inner diameter of the film roll when limiting film rolls with different inner diameters. This can easily cause the film roll to sway on the outer side of the support rod, thus reducing its adaptability.

[0005] Therefore, it is necessary to provide a limiting device for a film packaging machine to solve the above-mentioned technical problems. Utility Model Content

[0006] This invention provides a limiting device for a film packaging machine, which solves the problem that existing devices have fixed outer diameter support rods, making them unable to adapt to film rolls with different inner diameters, which easily leads to film roll shaking and low adaptability.

[0007] To solve the above-mentioned technical problems, this utility model provides a limiting device for a film packaging machine, comprising:

[0008] Supporting framework;

[0009] A support rod is rotatably connected to one side of the support frame, and the support rod has sliding grooves around its perimeter.

[0010] A limiting component is provided on the inner side of the support rod. The limiting component includes a bidirectional threaded rod. Both ends of the outer side of the bidirectional threaded rod are threaded with threaded rings. Connecting rods are rotatably connected around the two threaded rings. An abutment strip is rotatably connected to one end of the connecting rod.

[0011] Preferably, one end of the bidirectional threaded rod is rotatably connected to the inner side of the support rod, and the other end of the bidirectional threaded rod is fixedly fitted with a handle.

[0012] Preferably, the limiting component further includes a rubber pad, which is fixedly installed on the side of the abutment strip.

[0013] Preferably, sliders are fixedly installed around both of the two threaded rings, and the sliders are slidably connected to the inner side of the groove.

[0014] Preferably, the abutment strip is slidably connected to the inner side of the groove.

[0015] Preferably, a film roll is provided on the outer side of the support rod, and two rollers are provided at the bottom of the film roll, both of which are rotatably connected to the inner side of the support frame.

[0016] Preferably, the handle is internally threaded with a threaded rod, one end of which is fixedly fitted with an abutment plate, which abuts against one end of the support rod, and the other end of the threaded rod is fixedly fitted with a rotating plate.

[0017] Compared with related technologies, the limiting device for a film packaging machine provided by this utility model has the following advantages:

[0018] This utility model provides a limiting device for a film packaging machine. With the setting of the limiting component and the support rod, when in use, the bidirectional threaded rod rotates, thereby driving the two threaded rings to move towards the middle. Then, the connecting rod pushes the abutment strip to slide outward along the slide groove. When the abutment strip extends outward, the actual supporting outer diameter of the support rod can be increased, thereby adapting to film rolls with different inner diameters and increasing the adaptability of the device. Attached Figure Description

[0019] Figure 1 A schematic diagram of the structure of a first embodiment of a limiting device for a film packaging machine provided by this utility model;

[0020] Figure 2 for Figure 1 The diagram shows the supporting frame structure.

[0021] Figure 3 for Figure 1 The diagram shows the structure of the limiting component.

[0022] Figure 4 for Figure 3 The enlarged schematic diagram of part A shown below;

[0023] Figure 5 This is a schematic diagram of the second embodiment of a limiting device for a film packaging machine provided by this utility model.

[0024] The following are the labels in the diagram: 1. Support frame, 2. Idler roller, 3. Support rod, 31. Slide groove, 4. Rotary handle, 5. Limiting component, 51. Bidirectional threaded rod, 52. Threaded ring, 53. Connecting rod, 54. Abutment strip, 55. Rubber pad, 6. Film roll, 7. Slider, 8. Threaded rod, 81. Rotating plate, 82. Abutment plate. 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 , Figure 4 ,in, Figure 1 A schematic diagram of the structure of a first embodiment of a limiting device for a film packaging machine provided by this utility model; Figure 2 for Figure 1 The diagram shows the supporting frame structure. Figure 3 for Figure 1 The diagram shows the structure of the limiting component. Figure 4 for Figure 3 The enlarged schematic diagram of part A is shown.

[0028] A limiting device for a film packaging machine includes: a support frame 1;

[0029] Support rod 3 is rotatably connected to one side of the support frame 1, and the support rod 3 has a sliding groove 31 around its perimeter;

[0030] The limiting component 5 is disposed on the inner side of the support rod 3. The limiting component 5 includes a bidirectional threaded rod 51. Both ends of the outer side of the bidirectional threaded rod 51 are threaded with threaded rings 52. Connecting rods 53 are rotatably connected around the two threaded rings 52. One end of the connecting rod 53 is rotatably connected with an abutment strip 54.

[0031] One end of the bidirectional threaded rod 51 is rotatably connected to the inner side of the support rod 3, and the other end of the bidirectional threaded rod 51 is fixedly mounted with a handle 4.

[0032] The rotating handle 4 makes it easy for the user to rotate the bidirectional threaded rod 51 during use.

[0033] The limiting component 5 also includes a rubber pad 55, which is fixedly installed on the side of the abutment strip 54.

[0034] When in use, the rubber pads 55 on the side of the abutment strip 54 are tightly attached to the inner wall of the film roll, and the friction prevents the film roll 6 from shaking.

[0035] Each of the two threaded rings 52 is fixedly mounted with a slider 7 around its perimeter, and the slider 7 is slidably connected to the inner side of the groove 31.

[0036] The sliders 7 around the threaded ring 52 slide along the groove 31 to ensure that the adjustment process of the abutment bar 54 is smooth and does not deviate, to ensure the limit accuracy, and to limit the threaded ring 52 to prevent the threaded ring 52 from rotating.

[0037] The abutment strip 54 is slidably connected to the inner side of the groove 31.

[0038] The outer side of the support rod 3 is provided with a film roll 6, and the bottom of the film roll 6 is provided with two rollers 2, both of which are rotatably connected to the inner side of the support frame 1.

[0039] The two rollers 2 at the bottom of the film roll 6 provide auxiliary support for the film roll 6, reduce the load on the support rod 3, prevent the support rod from bending and deforming due to long-term stress, and ensure stable film output, thereby improving packaging quality.

[0040] The working principle of the limiting device for a film packaging machine provided by this utility model is as follows:

[0041] When in use, insert one end of the film roll 6 to be installed into one end of the support rod 3, and then rotate the handle 4 to drive the bidirectional threaded rod 51 to rotate inside the support rod 3. Since the threads at both ends of the bidirectional threaded rod 51 are opposite, the two threaded rings 52 on its outer side will move closer or further away from each other along the axial direction of the threaded rod. The sliders 7 around the threaded rings 52 slide along the grooves 31 of the support rod 3 to ensure that the threaded rings 52 move smoothly and do not deviate.

[0042] When the threaded rings are relatively close, the connecting rod 53 pushes the abutment strip 54 to extend outward along the slide groove 31, increasing the outer diameter of the support rod 3 until the outer side of the abutment strip 54 matches the inner diameter of the film roll 6, thereby limiting the film roll 6.

[0043] When the film packaging machine is working, the film is pulled out from the film roll 6, which drives the support rod 3 to rotate synchronously with the film roll. The support rod 3 rotates stably on the support frame 1.

[0044] Compared with related technologies, the limiting device for a film packaging machine provided by this utility model has the following advantages:

[0045] With the setting of the limiting component 5 and the support rod 3, when in use, the bidirectional threaded rod 51 rotates, thereby driving the two threaded rings 52 to move towards the middle, and then pushing the abutment strip 54 to slide outward along the slide groove 31 through the connecting rod 53. When the abutment strip 54 extends outward, the actual supporting outer diameter of the support rod 3 can be increased, thereby adapting to film rolls 6 with different inner diameters, thus increasing the adaptability of the device.

[0046] Second Embodiment

[0047] Please refer to the following: Figure 5 Based on the limiting device for a film packaging machine provided in the first embodiment of this application, the second embodiment of this application proposes another limiting device for a film packaging machine. 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.

[0048] Specifically, the second embodiment of this application provides a limiting device for a film packaging machine, which differs in that the limiting device for a film packaging machine has a threaded rod 8 internally threadedly connected to the rotating handle 4, an abutment plate 82 fixedly installed at one end of the threaded rod 8, the abutment plate 82 abutting against one end of the support rod 3, and a rotating plate 81 fixedly installed at the other end of the threaded rod 8.

[0049] The working principle of the limiting device for a film packaging machine provided by this utility model is as follows:

[0050] After the abutment strip 54 is adjusted to the position that matches the inner diameter of the film roll 6, the rotating plate 81 is rotated, which drives the threaded rod 8 to rotate inside the handle 4, causing the threaded rod 8 to move towards the support rod 3 until the abutment plate 82 is tightly abutted against the end face of the support rod 3; the friction between the abutment plate 82 and the support rod 3 restricts the rotation of the handle 4 and the bidirectional threaded rod 51, preventing the bidirectional threaded rod 51 from rotating due to vibration during the film packaging process, thereby avoiding the positional deviation of the abutment strip 54 and ensuring a stable limiting effect.

[0051] Compared with related technologies, the limiting device for a film packaging machine provided by this utility model has the following advantages:

[0052] The position locking of the bidirectional threaded rod 51 is achieved through the cooperation of the threaded rod 8, the rotating plate 81 and the abutment plate 82, which solves the problem of the abutment bar 54 shifting due to vibration after adjustment and improves the stability of the limit.

[0053] 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 limiting device for a film packaging machine, characterized in that, include: Supporting framework; A support rod is rotatably connected to one side of the support frame, and the support rod has sliding grooves around its perimeter. A limiting component is provided on the inner side of the support rod. The limiting component includes a bidirectional threaded rod. Both ends of the outer side of the bidirectional threaded rod are threaded with threaded rings. Connecting rods are rotatably connected around the two threaded rings. An abutment strip is rotatably connected to one end of the connecting rod.

2. The limiting device for a film packaging machine according to claim 1, characterized in that, One end of the bidirectional threaded rod is rotatably connected to the inner side of the support rod, and the other end of the bidirectional threaded rod is fixedly fitted with a handle.

3. A limiting device for a film packaging machine according to claim 1, characterized in that, The limiting component also includes a rubber pad, which is fixedly installed on the side of the abutment strip.

4. A limiting device for a film packaging machine according to claim 1, characterized in that, Each of the two threaded rings is fixedly mounted with a slider around its perimeter, and the slider is slidably connected to the inner side of the groove.

5. A limiting device for a film packaging machine according to claim 1, characterized in that, The abutment strip is slidably connected to the inner side of the groove.

6. A limiting device for a film packaging machine according to claim 1, characterized in that, A film roll is provided on the outer side of the support rod, and two rollers are provided at the bottom of the film roll. Both rollers are rotatably connected to the inner side of the support frame.

7. A limiting device for a film packaging machine according to claim 2, characterized in that, The handle is internally threaded with a threaded rod, one end of which is fixedly fitted with an abutment plate, which abuts against one end of the support rod, and the other end of the threaded rod is fixedly fitted with a rotating plate.

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