Flexible freight bag coiled material cutting and feeding mechanism
By using a servo motor-driven lower clamping roller in conjunction with a cylinder-controlled upper clamping roller, along with a limit baffle and adjustment mechanism, the problem of insufficient roll material correction in the FIBC roll material cutting and feeding mechanism is solved, achieving high-precision, flexible, and automated feeding, and improving production efficiency and cutting quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2026-02-04
- Publication Date
- 2026-03-20
AI Technical Summary
The existing container bag roll cutting and feeding mechanism lacks an effective roll correction device, which makes the fabric prone to deviation during the conveying process, resulting in skewed edges of the cut sheets, low production efficiency, and the need for frequent manual intervention and adjustment.
The lower clamping roller driven by a servo motor works in conjunction with the upper clamping roller controlled by a cylinder and elastic mechanism. Through the limit baffle and adjustment mechanism, an adjustable physical guide channel is formed to achieve high-precision fixed-length feeding and smooth and controllable clamping. Combined with the detachable design of the movable shaft and the winding drum, automated feeding is achieved.
It effectively prevents fabric from shifting, ensures neat edges of cut materials, reduces manual intervention, improves production efficiency, ensures accurate cutting length and protects the fabric surface, and has a compact structure and controllable cost.
Smart Images
Figure CN224015001U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of roll material feeding technology, and more specifically, to a rolling material cutting and feeding mechanism for FIBCs (Flexible Intermediate Bulk Containers). Background Technology
[0002] In the production process of FIBCs (also known as bulk bags), rolled tubular base fabric needs to be cut into sheets of specific lengths for subsequent sewing. Current cutting and feeding mechanisms mostly use a simple unwinding frame combined with a traction roller driven by a common motor for feeding.
[0003] In actual use, such institutions usually lack effective roll material correction devices, and the fabric is prone to deviation during the conveying process, resulting in crooked edges of the cut sheets, which become waste products. Frequent manual intervention and adjustment are required, resulting in low production efficiency.
[0004] Therefore, this application proposes a container bag roll cutting and feeding mechanism to solve the above-mentioned technical problems. Utility Model Content
[0005] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.
[0006] The purpose of this application is to address the shortcomings of the prior art by providing a container bag roll cutting and feeding mechanism to solve the problem of low efficiency in manual correction, which affects feeding efficiency.
[0007] To achieve the above objectives, this application provides the following technical solution:
[0008] A container bag roll cutting and feeding mechanism, including
[0009] Furthermore, it includes a base, one end of the upper surface of the base is fixed with a fixed seat, and a horizontal movable shaft is rotatably mounted on the top of the fixed seat. A winding drum for winding and unwinding the container bag roll is detachably mounted on the movable shaft.
[0010] A fixed frame is fixed to the other end of the upper surface of the base. A horizontal lower clamping roller is rotatably installed inside the bottom of the fixed frame. A servo motor for driving the lower clamping roller is fixed to one side of the fixed frame. A movable frame that moves up and down is provided on the top of the fixed frame. An upper clamping roller parallel to the lower clamping roller is rotatably installed on the lower end surface of the movable frame.
[0011] A cylinder is fixed to the upper end of the fixed frame, and the lower end of the cylinder is vertically downward and elastically mounted with the movable frame.
[0012] A roller shaft is provided in the middle of the lower clamping roller and extends from both ends of the lower clamping roller. Limiting baffles are symmetrically slidably installed on the roller shafts at both ends. An adjustment mechanism for controlling the mirror movement of the two limiting baffles is provided on the upper end surface of the base.
[0013] Furthermore, the surface of the movable shaft is provided with a plurality of limiting grooves along the axial direction, and the middle part of the winding drum is provided with a through hole for the movable shaft to pass through, and the inner wall of the through hole is provided with a limiting ridge that slides into the limiting groove.
[0014] Furthermore, a horizontal base plate is fixed to the output end of the cylinder, the base plate is parallel to the movable frame vertically, and an elastic mechanism is provided between the base plate and the movable frame.
[0015] Furthermore, the upper surface of the movable frame is fixed with a plurality of vertical guide posts, which vertically penetrate the base plate and are fitted with springs.
[0016] Furthermore, the two ends of the spring are respectively connected to the base plate and the movable frame.
[0017] Furthermore, the upper end face of the base is provided with a strip-shaped groove parallel to the lower clamping roller, and an adjusting rod is rotatably installed in the groove. The adjusting rod has two opposite threaded sections symmetrically constructed, and the bottom of the two limiting baffles is provided with threaded holes for the adjusting rod to pass through, and they are symmetrically distributed on the adjusting rod.
[0018] Furthermore, one end of the adjusting rod extends outward from the base and is fixed with a handle.
[0019] Furthermore, a plurality of guide rollers are rotatably mounted on the upper end face of the base, and the plurality of guide rollers are arranged parallel to the lower clamping roller, and the guide rollers are located on the side of the fixed frame away from the fixed base.
[0020] The beneficial effects of this application are as follows:
[0021] In the above scheme, the limiting baffles symmetrically arranged on the lower clamping roller shaft cooperate with the adjustment mechanism to manually and synchronously adjust the distance between the two limiting baffles according to the width of the roll material, forming an adjustable physical guide channel. During the conveying process, the edges on both sides of the roll material are continuously limited, which can effectively prevent the fabric from deviating, ensure the neatness of the cut material edges, reduce manual intervention and improve production efficiency.
[0022] In the above solution, the cooperation between the lower clamping roller driven by the servo motor and the upper clamping roller controlled by the cylinder and elastic mechanism can achieve high-precision fixed-length feeding and smooth and controllable clamping pressure. While avoiding slippage during conveying and ensuring accurate cutting length, it also protects the fabric surface from damage. Furthermore, the detachable design of the movable shaft and the winding drum makes it convenient to replace the roll material.
[0023] In summary, this device not only effectively solves the problems of unstable cutting quality and low production efficiency caused by the lack of correction function in traditional mechanisms, but also achieves precise and flexible automated feeding through electromechanical cooperation. The overall structure is compact, the cost is controllable, and the performance is good. Attached Figure Description
[0024] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.
[0025] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.
[0026] In the attached diagram:
[0027] Figure 1 This is a schematic diagram of the structure of this application;
[0028] Figure 2 This is a schematic diagram of the structure of one end of this application;
[0029] Figure 3 for Figure 2 Enlarged view of the structure at point A in the middle;
[0030] Figure 4 This is a partial structural diagram of the other end of this application.
[0031] Figure label:
[0032] 1. Base; 2. Fixed base; 201. Movable shaft; 202. Limiting groove; 3. Take-up drum; 301. Limiting edge; 4. Fixed frame; 5. Lower clamping roller; 501. Roller shaft; 502. Limiting baffle; 503. Adjusting rod; 6. Cylinder; 7. Movable frame; 701. Base plate; 702. Guide post; 703. Spring; 8. Upper clamping roller; 9. Servo motor; 10. Guide roller. Detailed Implementation
[0033] The following is a detailed description of a container bag roll cutting and feeding mechanism provided in this application, with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments; those skilled in the art can also use other alternative methods to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit this application.
[0034] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.
[0035] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.
[0036] The present application will now be described in detail with reference to the accompanying drawings and embodiments.
[0037] Reference Figure 1-4 As shown, this utility model provides a cutting and feeding mechanism for container bag rolls, including a horizontally arranged cuboid base 1, which is typically welded from steel plates to provide stable support for the entire mechanism. At the right end of the upper surface of the base 1, a vertically arranged fixed seat 2 is fixed by welding, and a movable shaft 201 is horizontally rotatably mounted on the top of the fixed seat 2 via a bearing.
[0038] The surface of the movable shaft 201 is machined with several through-strip-shaped limiting grooves 202 along its axial direction. The take-up drum 3, used to carry the bulk bag roll material, is made of metal and has a circular through hole in its middle for the movable shaft 201 to pass through. The inner wall of the through hole is cast with raised limiting ridges 301 that match the number and position of the limiting grooves 202. When installing the roll material, the operator aligns the through hole of the take-up drum 3 with the end of the movable shaft 201, so that the internal limiting ridges 301 slide into the corresponding limiting grooves 202, thereby achieving circumferential fixation of the take-up drum 3 and the movable shaft 201, allowing it to rotate freely with the shaft for unwinding. When it is necessary to replace the roll material, simply pull the take-up drum 3 along with the exhausted roll material axially out from the end of the movable shaft 201, replace it with new roll material, and then insert it again, which helps to improve the efficiency of roll material replacement.
[0039] At the left end of the upper surface of the base 1, a fixed frame 4 with a U-shaped structure is fixedly installed. A horizontal lower clamping roller 5 is rotatably mounted on the inner bottom of the fixed frame 4 via two bearing seats. The surface of the lower clamping roller 5 can be coated with a rubber layer to increase friction. A servo motor 9 is fixed to one side of the fixed frame 4 via a mounting plate. Its output shaft is directly connected to the roller end of the lower clamping roller 5 via a coupling, thereby receiving pulse signals from the control system and precisely controlling the rotation angle of the lower clamping roller 5, thus achieving digital and precise control of the feeding length. To achieve automatic correction during the roll material conveying process, a roller shaft 501 penetrating the roller body is provided in the middle of the lower clamping roller 5. The two ends of the roller shaft 501 extend outward from both sides of the roller body of the lower clamping roller 5. A disc-shaped limiting baffle 502 is slidably fitted on each of these two extended roller shafts 501. The two limiting baffles 502 can slide towards or away from each other along the axial direction of the roller shaft 501.
[0040] To allow for synchronous and symmetrical adjustment of the spacing between the two limiting baffles 502 to accommodate rolls of material with different widths, a parallel strip groove is formed on the upper surface of the base 1, directly below the lower clamping roller 5. An adjusting rod 503 is rotatably mounted within the groove via a bearing seat. The adjusting rod 503 has threaded sections with opposite directions of rotation on its left and right sides. The bottom of each of the two limiting baffles 502 has threaded holes that match the threaded sections of the adjusting rod 503, and these holes are screwed onto the two opposite threads of the adjusting rod 503. One end of the adjusting rod 503 extends to the outside of the base 1 and is fitted with a manually rotating handle. When the operator rotates the handle, the adjusting rod 503 rotates accordingly. Because the threads on both sides rotate in opposite directions, the two limiting baffles 502 simultaneously move closer to or further away from each other at the same speed, quickly establishing a physical guide channel that precisely matches the current roll width. This continuously mechanically limits the edges of the fabric during feeding, preventing lateral deviation.
[0041] A vertically downward-pointing cylinder 6 is bolted to the top crossbeam of the fixed frame 4. The piston rod of the cylinder 6 is fixedly connected to a horizontal rectangular base plate 701. Directly below the base plate 701, a vertically movable "gate"-shaped frame 7 is provided. An upper clamping roller 8, strictly parallel to the lower clamping roller 5, is rotatably mounted on the lower part of the frame 7 via bearings. To provide a smooth and adjustable clamping force and protect the fabric surface, at least two smooth guide posts 702 are vertically fixed to the upper surface of the frame 7. These guide posts 702 pass upward through corresponding smooth guide holes on the base plate 701. Each guide post 702 is fitted with a spring 703, with both ends of the spring 703 pressing against the lower surface of the base plate 701 and the upper surface of the frame 7, respectively. When the piston rod of cylinder 6 extends, it pushes the base plate 701 downward, first compressing the spring 703, and then the compressed spring 703 pushes the movable frame 7 and the upper clamping roller 8 downward until the upper clamping roller 8 clamps the fabric passing between it and the lower clamping roller 5. At this time, the magnitude of the clamping force is determined by the compression of the spring 703. This force is uniform and has a buffering effect, which can ensure sufficient friction during feeding and avoid rigid impact damage to the woven fabric. When it is necessary to loosen the fabric for cutting, the piston rod of cylinder 6 retracts, and the movable frame 7 and the upper clamping roller 8 are lifted as a whole by the base plate 701 and the spring 703.
[0042] To further guide the fabric being fed out smoothly into the subsequent cutting station, several parallel guide rollers 10 are rotatably mounted on the upper surface of the base 1, located to the left of the fixed frame 4, via a bracket. These guide rollers 10 are arranged parallel to the lower clamping roller 5 and are used to support and guide the fixed-length fabric pulled out from between the upper and lower clamping rollers, so that it is transported flat to the worktable of the external cutting equipment.
[0043] Working Principle: In use, the feed mechanism for cutting and feeding bulk bag rolls first adjusts the distance between the two limit baffles 502 by rotating the handle of the adjusting rod 503 according to the roll width. The take-up drum 3, with the roll of material already in place, is installed onto the movable shaft 201. The fabric end is then led out, passing between the two limit baffles 502, through the gap between the raised upper clamping roller 8 and the lower clamping roller 5, and finally laid flat on the guide roller 10. Upon starting the equipment, the control system first instructs the cylinder 6 to actuate, causing the upper clamping roller 8 to press the fabric against the lower clamping roller 5 under the pressure provided by the spring 703. Subsequently, the servo motor 9 precisely starts according to the preset number of pulses (corresponding to the required feeding length), driving the lower clamping roller 5 to rotate and pulling the fabric to the left by the set length. During this process, the limit baffles 502 continuously constrain the fabric, preventing it from deviating and ensuring the edges of the cut material are neat. After the material is fed to the desired position, the servo motor 9 stops, the cylinder 6 immediately retracts its piston rod, and the upper clamping roller 8 lifts to release the fabric. At this point, the pre-feeded length of fabric is laid flat on the guide roller 10 and the subsequent cutting table, where an external cutting device (such as a hydraulic cutter or a hot melt cutter) can perform the cutting. After cutting, the cylinder 6 drives the upper clamping roller 8 to press down again, and the servo motor 9 begins the next cycle of precise feeding. This cycle repeats continuously, achieving high-precision and high-stability intermittent automated feeding operations.
[0044] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.
[0045] It should be noted that this application covers any alternatives, modifications, equivalent methods, and solutions made within the spirit and scope of this application. To provide the public with a thorough understanding of this application, specific details are described in detail in the preferred embodiments, while those skilled in the art can fully understand this application without these details. Furthermore, to avoid unnecessary confusion regarding the substance of this application, well-known methods, processes, procedures, components, and circuits are not described in detail.
[0046] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.
Claims
1. A container bag roll cutting and feeding mechanism, comprising a base (1), characterized in that: A fixed seat (2) is fixed at one end of the upper surface of the base (1). A horizontal movable shaft (201) is rotatably installed at the top of the fixed seat (2). A winding drum (3) for winding and unwinding the container bag roll is detachably installed on the movable shaft (201). A fixed frame (4) is fixed to the other end of the upper surface of the base (1). A horizontal lower clamping roller (5) is rotatably installed inside the bottom of the fixed frame (4). A servo motor (9) for driving the lower clamping roller (5) is fixed to one side of the fixed frame (4). A movable frame (7) that moves up and down is provided on the top of the fixed frame (4). An upper clamping roller (8) parallel to the lower clamping roller (5) is rotatably installed on the lower end surface of the movable frame (7). The upper end of the fixed frame (4) is fixed with a cylinder (6), the lower end of the cylinder (6) is vertically downward, and the movable frame (7) is elastically installed thereon. The lower clamping roller (5) is provided with a roller shaft (501) in the middle, and the roller shaft (501) extends from both ends of the lower clamping roller (5). Limiting baffles (502) are symmetrically slidably installed on the roller shaft (501) at both ends. The upper end face of the base (1) is provided with an adjustment mechanism for controlling the mirror movement of the two limiting baffles (502).
2. The container bag roll cutting and feeding mechanism according to claim 1, characterized in that: The surface of the movable shaft (201) is provided with a plurality of limiting grooves (202) along the axial direction, and the middle part of the winding drum (3) is provided with a through hole for the movable shaft (201) to pass through, and the inner wall of the through hole is provided with a limiting rib (301) that slides into the limiting groove (202).
3. The container bag roll cutting and feeding mechanism according to claim 1, characterized in that: The output end of the cylinder (6) is fixed with a horizontal base plate (701). The base plate (701) is parallel to the movable frame (7) vertically, and an elastic mechanism is provided between the base plate (701) and the movable frame (7).
4. The container bag roll cutting and feeding mechanism according to claim 3, characterized in that: The upper end face of the movable frame (7) is fixed with a plurality of vertical guide posts (702), the guide posts (702) vertically penetrate the base plate (701), and springs (703) are sleeved on the guide posts (702).
5. The container bag roll cutting and feeding mechanism according to claim 4, characterized in that: The two ends of the spring (703) are respectively connected to the base plate (701) and the movable frame (7).
6. The container bag roll cutting and feeding mechanism according to claim 1, characterized in that: The upper end face of the base (1) is provided with a strip groove parallel to the lower clamping roller (5). An adjusting rod (503) is rotatably installed in the groove. The adjusting rod (503) has two opposite threaded sections symmetrically constructed. The bottom of the two limiting baffles (502) is provided with threaded holes through which the adjusting rod (503) passes, and they are symmetrically distributed on the adjusting rod (503).
7. The container bag roll cutting and feeding mechanism according to claim 6, characterized in that: One end of the adjusting rod (503) extends out of the outside of the base (1) and is fixed with a handle.
8. The container bag roll cutting and feeding mechanism according to claim 1, characterized in that: A plurality of guide rollers (10) are rotatably mounted on the upper end face of the base (1). The plurality of guide rollers (10) are arranged parallel to the lower clamping roller (5), and the guide rollers (10) are located on the side of the fixed frame (4) away from the fixed base (2).