Limiting device of bag making machine and bag making machine

By setting a limiting device and an adjustable roller assembly on the bag making machine, the synchronous processing and continuous supply of multiple sets of film sleeves can be achieved, which solves the problems of low efficiency and poor adaptability of traditional bag making machines, and improves production efficiency and product quality.

CN224256210UActive Publication Date: 2026-05-19临朐兴旺包装制品有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
临朐兴旺包装制品有限公司
Filing Date
2025-05-15
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Traditional bag-making machines suffer from low processing efficiency, frequent downtime for material changes, and poor film adaptability, resulting in low production efficiency and poor continuity.

Method used

A limiting device, including a guide roller device and a conveying mechanism, is set on the processing table of the bag making machine. Through the limiting rod assembly and the adjustable roller assembly, the synchronous processing and continuous supply of multiple film sleeves can be realized to adapt to films of different thicknesses.

Benefits of technology

It improves the processing efficiency and production continuity of bag making machines, enhances adaptability to different films, reduces downtime and manual operation requirements, and improves product quality stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of bag making machines, and discloses a limiting device of a bag making machine and the bag making machine, the limiting device comprises a processing table, a guide roller device and a conveying mechanism are arranged on the processing table, and the guide roller device comprises a cross rod and a plurality of groups of film sleeves sleeved on the cross rod. A limiting groove located under the guide roller device is formed in the top of the machining table, the limiting groove is a tooth groove with the two inner sides aligned, the two inner ends of the limiting groove penetrate through the corresponding side edges of the machining table, limiting rod assemblies are movably connected into the limiting groove in a clamped mode, and the multiple sets of limiting rod assemblies separate the film sleeves on the transverse rods; according to the device, the machining efficiency is improved, the production continuity is enhanced, and the applicability is improved. And through continuous feeding and synchronous processing, the downtime in production is effectively reduced, so that the bag making machine can operate more efficiently, and the film bag making requirements of different specifications and requirements are met.
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Description

Technical Field

[0001] This utility model relates to the field of bag making machine technology, and in particular to a limiting device for a bag making machine and a bag making machine. Background Technology

[0002] The packaging industry is an indispensable part of modern industrial production, and bag-making machines are one of the most crucial pieces of equipment within it. Bag-making machines are used to process film materials into various forms of packaging bags for packaging a wide range of goods. During the bag-making process, the stable positioning of the film sleeve is one of the key factors in ensuring the quality of the packaging bags.

[0003] There are some problems in the design of traditional bag making machines:

[0004] Low processing efficiency: Traditional bag-making machines can typically only process one set of film sleeves at a time, resulting in low production efficiency. This is because the structural design of traditional bag-making machines limits the possibility of processing multiple sets of film sleeves simultaneously.

[0005] Frequent downtime for material replacement: Due to the limited material available for the film sleeve, once a set of films is used up, the operator must stop the machine and replace the raw materials, which will cause the production line to stagnate and reduce production efficiency.

[0006] Poor film adaptability: The conveying mechanism of traditional bag making machines is usually not flexible enough to adapt to films of different thicknesses, which limits the processing capability of bag making machines for different types and thicknesses of films.

[0007] These problems result in low efficiency, poor production continuity, and insufficient adaptability to different film materials in practical applications of bag making machines.

[0008] Therefore, we propose a limiting device for a bag-making machine and a bag-making machine in general. Utility Model Content

[0009] This utility model mainly addresses the technical problems of low processing efficiency, frequent downtime for material replacement, and poor film adaptability in traditional bag making machines, and provides a limiting device and a bag making machine.

[0010] To achieve the above objectives, the present invention adopts the following technical solution: a limiting device for a bag-making machine, comprising a processing table, on which a guide roller device and a conveying mechanism are provided. The guide roller device includes a crossbar and several sets of film sleeves sleeved on the crossbar. A limiting groove is provided on the top of the processing table, located directly below the guide roller device. The limiting groove is a toothed groove with its two sides aligned, and the two ends of the limiting groove penetrate through the corresponding side of the processing table. A limiting rod assembly is movably engaged inside the limiting groove. Multiple sets of limiting rod assemblies separate the film sleeves on the crossbar. There is one more limiting rod assembly than film sleeves.

[0011] As a preferred embodiment of the present invention, the limiting rod assembly includes a base block that fits vertically inside the limiting groove, the top of the base block is connected to a docking hole, and a first fixing bolt through which a rod body with a crossbar passes through the top side of the docking hole.

[0012] As a preferred embodiment of this utility model, each of the base blocks has a support baffle threadedly connected to its top through a threaded hole extending into the bottom surface of the limiting groove.

[0013] As a preferred embodiment of the present invention, the conveying mechanism includes a frame-shaped mounting frame, with symmetrical through-holes on both sides of the mounting frame, a first roller assembly disposed inside the lower part of the mounting frame, and a second roller assembly that can be raised and lowered disposed inside the two adjusting slides.

[0014] As a preferred embodiment of the present invention, the first roller assembly includes a roller body that is movable inside the mounting frame and a motor that is mounted on the outside of the mounting frame, with the output rod of the motor connected to one end of the corresponding roller body.

[0015] As a preferred embodiment of the present invention, the second roller assembly includes a roller body two located inside the mounting frame. The two ends of the roller body two are connected to rotating shafts inside the extension adjustment slide. The two sets of rotating shafts extend away from each other toward the outside of the mounting frame, and each rotating shaft has an external thread. A hexagonal nut with a washer is threadedly connected to the rotating shaft for fixing to the threaded outer wall surface of the mounting frame.

[0016] This application also proposes a bag-making machine that includes the limiting device for a bag-making machine as described above.

[0017] Beneficial effects

[0018] This utility model provides a limiting device for a bag-making machine and the bag-making machine itself. It has the following beneficial effects:

[0019] (1) The limiting device and bag making machine of this kind have a crossbar set on the processing table, on which multiple sets of film sleeves and limiting rod assemblies are equipped. These assemblies enable multiple sets of film sleeves to be processed at the same time, improving processing efficiency. The setting of the limiting rod assembly ensures the stable positioning of the film sleeves and avoids misalignment and errors during the processing.

[0020] (2) The limiting device and the bag making machine of this kind, with sequential film sleeve supply: By placing multiple sets of film sleeves onto the crossbar from one end to the other, a sequential supply mechanism is created. When the film in a batch of film sleeves is used up, the used film sleeves can be reloaded from one side without stopping the machine to process the raw materials. This continuous supply design ensures the continuous operation of the bag making machine and improves production efficiency.

[0021] (3) The limiting device and the bag making machine of this kind, the second roller assembly in the conveying mechanism has adjustable characteristics, and can be adjusted according to the film of different thicknesses. In this way, the bag making machine can adapt to different types and thicknesses of films, improving its applicability and flexibility. Attached Figure Description

[0022] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0023] The structures, proportions, sizes, etc., illustrated in this specification are merely for illustrative purposes to aid those skilled in the art and to provide a clear understanding. They are not intended to limit the implementation of this utility model and therefore have no substantial technical significance. Any modifications to the structure or changes in proportions are not permitted.

[0024] Any adjustments to the size or shape, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the technical content disclosed in this invention.

[0025] Figure 1 is a side view of the limiting device of the bag making machine of this utility model;

[0026] Figure 2 is a front view of the limiting device of the bag making machine of this utility model;

[0027] Figure 3 is a schematic diagram of the left side of the limiting device of the bag making machine of this utility model;

[0028] Figure 4 is a top view of the limiting device of the bag making machine of this utility model;

[0029] Figure 5 is a partially enlarged schematic diagram of the guide roller device and the conveying mechanism in the limiting device of the bag making machine of this utility model.

[0030] Legend:

[0031] 1. Processing table; 101. Limiting groove; 2. Crossbar; 3. Film sleeve; 4. Base block; 401. Support baffle; 402. Docking hole; 403. First fixing bolt; 5. Mounting bracket; 501. Adjusting slide; 6. Motor; 601. Roller body one; 7. Roller body two; 701. Rotating shaft; 702. Hexagonal nut with washer. Detailed Implementation

[0032] 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.

[0033] Example: As shown in Figures 1-5, a limiting device for a bag-making machine includes a processing table 1. The processing table 1 is equipped with a guide roller device and a conveying mechanism. The guide roller device includes a crossbar 2 and several sets of film sleeves 3 sleeved on the crossbar 2. A limiting groove 101 is formed on the top of the processing table 1, located directly below the guide roller device. The limiting groove 101 has teeth aligned on both sides inside.

[0034] The internal ends of the limit groove 101 penetrate the corresponding side of the processing table 1. The limit rod assembly is movablely engaged inside the limit groove 101. Multiple sets of limit rod assemblies separate the film sleeves 3 on the crossbar 2. There is one more limit rod assembly than film sleeve 3. By setting multiple sets of film sleeves 3 and limit rod assemblies for limiting the film sleeves 3 on the crossbar 2, multiple sets of bags can be processed simultaneously, improving processing efficiency. At the same time, multiple sets of film sleeves 3 are placed on the crossbar 2 from one end to the other. After the film on the previous batch of film sleeves 3 is used up, the used film sleeves 3 can be reloaded from one side without affecting the supply of film bags to the bag making machine. There is no need to stop the equipment to transport raw materials.

[0035] Furthermore, the limiting rod assembly includes a base block 4 that fits vertically inside the limiting groove 101. The top of the base block 4 is connected to a docking hole 402. The top side of the docking hole 402 is through which a first fixing bolt 403 through which the body of the crossbar 2 passes. By setting the limiting rod assembly, multiple sets of film sleeves 3 can be distributed on the crossbar 2 for synchronous conveying. At the same time, film sleeves 3 that have been used up on one side can be removed from one side without affecting the conveying of other film sleeves 3. The number of film sleeves 3 on the crossbar 2 can also be adjusted according to production capacity requirements.

[0036] Furthermore, each of the base blocks 4 is threadedly connected to a support baffle 401 in a threaded hole extending into the bottom surface of the limiting groove 101, which further enhances the fixing effect of each limiting rod assembly inside the limiting groove 101. The support baffle 401 provides stable bottom support for the film sleeve 3 to normally transport the film on the crossbar 2.

[0037] Furthermore, the conveying mechanism includes a frame-shaped mounting frame 5, with symmetrical through-holes of adjusting slides 501 on both sides of the mounting frame 5. A first roller assembly is provided inside the lower part of the mounting frame 5, and a second roller assembly that can be raised and lowered is provided inside the two adjusting slides 501.

[0038] Furthermore, the first roller assembly includes a roller body 601 movable inside the mounting frame 5 and a motor 6 mounted outside the mounting frame 5, with the output rod of the motor 6 connected to one end of the corresponding roller body 601.

[0039] Furthermore, the second roller assembly includes a roller body 7 located inside the mounting frame 5. Both ends of the roller body 7 are connected to rotating shafts 701 inside the extending adjustment slide 501. The two sets of rotating shafts 701 extend away from each other towards the outside of the mounting frame 5, and each rotating shaft 701 has an external thread. A hexagonal nut 702 with a washer is threaded onto the rotating shaft 701 for fixing to the corresponding outer wall thread of the mounting frame 5. By configuring the roller body 7, rotating shafts 701, and hexagonal nut 702, the distance between the roller body 7 and the first roller assembly can be adjusted by loosening the hexagonal nut 702, thereby conveying films of different thicknesses. Simultaneously, the second roller assembly is removed from the mounting frame 5, and the removed second roller assembly and the roller body 601 inside the mounting frame 5 are cleaned of surface dust to prevent dust from the first and second roller assemblies from adhering to the film.

[0040] This application also proposes a bag making machine, which includes the limiting device of the bag making machine described above. The specific structure of the limiting device of the bag making machine is as described in the above embodiments. Since this bag making machine adopts all the technical solutions of all the above embodiments, it also has all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0041] The working principle of this utility model is as follows: By setting multiple sets of film sleeves 3 and limiting rod assemblies for limiting the film sleeves 3 on the crossbar 2, multiple sets of bags can be processed simultaneously, improving processing efficiency. At the same time, multiple sets of film sleeves 3 are placed on the crossbar 2 from one end to the other. After the film on the previous batch of film sleeves 3 is used up, the used film sleeves 3 can be reloaded from one side without affecting the supply of film bags to the bag making machine, and there is no need to stop the equipment to transport raw materials.

[0042] By using a limiting device, including a guide roller device and a conveying mechanism, on the processing table of the bag making machine, the synchronous processing and supply of film sleeves are realized, thereby improving the processing efficiency of the bag making machine.

[0043] Multiple film sleeves and limiting rod assemblies are used to simultaneously process multiple bags: A crossbar is set on the processing table, on which multiple film sleeves and limiting rod assemblies are mounted. These assemblies allow multiple film sleeves to be processed at the same time, improving processing efficiency. The limiting rod assembly ensures the stability of the film sleeves.

[0044] Stable positioning avoids misalignment and errors during processing.

[0045] Sequential film sleeve supply: A sequential supply mechanism is created by placing multiple sets of film sleeves onto a crossbar from one end to the other. When the film in a batch of film sleeves is used up, the used film sleeves can be reloaded from one side without stopping the machine to process the raw materials. This continuous supply design ensures the continuous operation of the bag-making machine and improves production efficiency.

[0046] Adjustable roller assembly: The second roller assembly in the conveying mechanism is adjustable, allowing it to be adjusted according to films of different thicknesses. This enables the bag-making machine to adapt to different types and thicknesses of film, improving its applicability and flexibility.

[0047] Improved production efficiency: By simultaneously processing multiple sets of bags and continuously supplying film sleeves, the production efficiency of the bag making machine is significantly improved.

[0048] Saving human resources: Automated operation design reduces the need for manual operation, lowers production costs, and reduces errors and losses that may be caused by human operation.

[0049] Improved product quality: The setting of the limiting device ensures the stable positioning and conveying of the film sleeve, avoids misalignment and errors in the production process, and improves the consistency and quality stability of the bag products.

[0050] Compared to traditional bag-making machines, the improvements of this device are mainly reflected in increased processing efficiency, enhanced production continuity, and expanded applicability. Through continuous supply and synchronous processing, downtime during production is effectively reduced, enabling the bag-making machine to operate more efficiently and adapt to the needs of film bag making with different specifications and requirements.

[0051] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims.

[0052] The definition of the claim and its equivalent.

Claims

1. A limiting device for a bag-making machine, comprising a processing table (1), characterized in that: The processing table (1) is equipped with a guide roller device and a conveying mechanism. The guide roller device includes a crossbar (2) and several sets of film sleeves (3) sleeved on the crossbar (2). The top of the processing table (1) is provided with a limiting groove (101) located directly below the guide roller device. The limiting groove (101) is a toothed groove with its two sides aligned inside. The two ends of the limiting groove (101) penetrate through the corresponding side of the processing table (1). The limiting groove (101) is movably engaged with a limiting rod assembly. Multiple sets of limiting rod assemblies separate the film sleeves (3) on the crossbar (2). There is one more limiting rod assembly than film sleeves (3).

2. The limiting device for a bag-making machine according to claim 1, characterized in that: The limiting rod assembly includes a base block (4) that fits into the limiting groove (101) from top to bottom. The top of the base block (4) is connected to a docking hole (402). The top of the docking hole (402) is through a first fixing bolt (403) through which the rod body with the crossbar (2) passes.

3. The limiting device for a bag-making machine according to claim 2, characterized in that: Each of the base blocks (4) has a threaded connection at its top to a support baffle (401) in a threaded hole extending into the bottom surface of the limiting groove (101).

4. The limiting device for a bag-making machine according to claim 1, characterized in that: The conveying mechanism includes a frame-shaped mounting frame (5), with symmetrically arranged adjusting slides (501) on both sides of the mounting frame (5). A first roller assembly is arranged inside the lower part of the mounting frame (5), and a second roller assembly that can be raised and lowered is arranged inside the two adjusting slides (501).

5. The limiting device for a bag-making machine according to claim 4, characterized in that: The first roller assembly includes a roller body (601) movable inside the mounting frame (5) and a motor (6) mounted on the outside of the mounting frame (5), with the output rod of the motor (6) connected to one end of the corresponding roller body (601).

6. The limiting device for a bag-making machine according to claim 4, characterized in that: The second roller assembly includes a roller body two (7) located inside the mounting frame (5). The two ends of the roller body two (7) are connected to rotating shafts (701) inside the extension adjustment slide (501). The two sets of rotating shafts (701) extend away from each other towards the outside of the mounting frame (5), and each rotating shaft (701) has an external thread on its rod. The rotating shaft (701) is threaded with a hexagonal nut (702) with a washer for thread fixing to the corresponding outer wall of the mounting frame (5).

7. A bag-making machine, characterized in that, Includes the limiting device of the bag making machine according to any one of claims 1-6.