Coiled material feeding device for laser cutting machine

By designing and coordinating limiting, guiding, transmission, and extrusion components, the problem of the coil springing open after the steel strip is removed is solved, thereby improving the stability and safety of the coil during the feeding process.

CN224196144UActive Publication Date: 2026-05-05CHANGZHOU JINZHIDE MASCH TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGZHOU JINZHIDE MASCH TECH CO LTD
Filing Date
2025-03-17
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

When the steel strip is removed from the existing laser cutting machine's roll feeding device, the roll material is prone to springing open instantly, which reduces safety.

Method used

Design a feeding device that includes a limiting component, a guiding component, a transmission component, a connecting component, and an extrusion component. The transmission component drives the connecting component and the extrusion component to move, maintaining the extrusion pressure on the roll material and ensuring stable feeding in accordance with changes in the roll material diameter.

Benefits of technology

It improves the stability and safety of the roll material during the unwinding and feeding process, prevents the roll material from snapping open instantly, and enhances safety during use.

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Abstract

The utility model discloses a coiled material feeding device for a laser cutting machine, and relates to the technical field of laser cutting machines. The feeding device comprises a feeding device body. According to the feeding device, the surface of the extrusion assembly is attached to the surface of the coiled material, so that the coiled material can be prevented from being bounced off instantly after losing constraint, and then one end of the coiled material penetrates through the guide assembly and is communicated with one end of the mechanical cutting machine; according to the device, the driving assembly mounted on the outer surface of the driving assembly can be driven to rotate, so that the driving assembly drives the connecting assembly to move downwards, the extruding assembly can be driven to move in the direction of the coiled material, the coiled material is always extruded, and the extruding force can be always applied to the coiled material; and therefore, the stability and the safety of the coiled material in the unwinding and feeding process are improved.
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Description

Technical Field

[0001] This utility model belongs to the field of laser cutting machine technology, and specifically relates to a roll material feeding device for laser cutting machines. Background Technology

[0002] The roll feeding device that comes with the laser cutting machine is mainly used for the automated unwinding, leveling, conveying and cutting of metal or non-metal rolls, which greatly improves production efficiency and material utilization. It is applicable to many fields such as automobile manufacturing, home appliances and sheet metal processing.

[0003] In existing technologies, the coil material is typically squeezed and clamped inside the feeding device by being wrapped around it. Since the coil material is protected by a steel strip on its outer surface to prevent it from springing open during handling, the internal pressure increases when the coil material is wrapped around the feeding device. Consequently, when the steel strip is removed, the winding stress inside the coil material is released, making it easy for the coil material to spring open instantly, thus reducing the safety of the feeding device during use. Utility Model Content

[0004] In response to the problem that the internal pressure of the coil increases when it is wrapped on the feeding device, and the coil is prone to springing open instantly when the steel strip is removed, this utility model proposes a coil feeding device for laser cutting machines to overcome the above-mentioned technical problems existing in the existing related technologies.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a roll material feeding device for a laser cutting machine, comprising a feeding device body:

[0007] The feeding device body is respectively provided with a limit component, a guide component, a transmission component, a connecting component and an extrusion component;

[0008] The limiting component is fixedly installed at the top of the bottom feeding device body so that the limiting component limits the roll material on the feeding device body.

[0009] The guide component has its outer surface rotatably disposed from the interior of the limiting component, so that the guide component guides the roll material inside the limiting component;

[0010] The transmission assembly is fixedly installed inside the output end of the feeding device body so that the transmission assembly is driven to rotate when the feeding device body is running.

[0011] The connecting component is fixedly connected to one side of the transmission component, so that the connecting component is driven to move downward when the transmission component rotates.

[0012] The extrusion assembly is fixedly installed at its top end to the bottom end of the connecting assembly, so that when the connecting assembly moves downward, it drives the extrusion assembly to extrude the roll material.

[0013] Furthermore, the limiting component includes a support frame, with the bottom end of the support frame fixedly installed at the top end of the feeding device body, and a limiting cylinder fixedly installed on one side of the support frame, the limiting cylinder being sleeved on the outside of the feeding device body.

[0014] Furthermore, the guiding assembly includes a rotating shaft, the outer surface of which is rotatably disposed with respect to the interior of the limiting cylinder, and a guide roller is fixedly mounted on the outer surface of the rotating shaft.

[0015] Furthermore, the transmission assembly includes a drive gear, the interior of which is fixedly installed with the output end of the feeding device body, a first transmission gear meshing with the surface of the drive gear, a connecting shaft fixedly installed inside the first transmission gear, and the outer surface of the connecting shaft rotatably connected with the interior of the support frame.

[0016] A second transmission gear is fixedly mounted on the outer surface of the connecting shaft, and an internal gear ring is meshed on the surface of the second transmission gear.

[0017] Furthermore, the connecting assembly includes a turntable, the interior of which is rotatably disposed with respect to the outer surface of the support frame, one side of which is fixedly connected to one side of the internal gear ring, and an arc-shaped groove is provided on one side of the turntable, with a connecting rod slidably disposed inside the arc-shaped groove.

[0018] Furthermore, the connecting assembly also includes a limiting frame, one side of which is fixedly installed with one side of the limiting cylinder, and a connecting plate is slidably arranged inside the limiting frame. One side of the connecting plate is fixedly connected to one end of the connecting rod, and the other side of the connecting plate is fixedly connected to an installation rod.

[0019] Furthermore, the extrusion assembly includes a mounting cylinder, the top end of which is fixedly mounted to the bottom end of a mounting rod. An extension rod is slidably disposed inside the mounting cylinder, a spring is fixedly connected to the top end of the extension rod, one end of the spring is fixedly connected to the inner wall of the mounting cylinder, and an extrusion wheel is fixedly mounted to the bottom end of the extension rod.

[0020] This utility model has the following beneficial effects:

[0021] 1. This utility model, by attaching the surface of the extrusion component to the surface of the roll material, can prevent the roll material from instantly springing open after losing its restraint. Then, one end of the roll material is passed through the guide component and connected to one end of the mechanical cutting machine. When the feeding device body rotates to feed the material, it can drive the transmission component installed on its outer surface to rotate, so that it drives the connecting component to move downward, thereby driving the extrusion component to move towards the roll material, so that it always keeps extruding the roll material. Since the transmission ratio between the transmission component and the feeding device body is specifically set, it can work with the connecting component to drive the extrusion component to move at a speed that corresponds to the change in the diameter of the roll material, thereby enabling it to always apply extrusion pressure to the roll material, thus improving the stability and safety of the roll material during the unwinding and feeding process.

[0022] 2. This utility model moves the mounting rod downward by moving the connecting plate, which in turn moves the mounting cylinder at its bottom downward. This causes the spring fixed on the inner wall to move, which in turn applies pressure to the extension rod fixed at one end. This, in turn, applies pressure to the extrusion roller at the bottom end, which in turn applies pressure to the surface of the roll material. This allows the extrusion roller to move as the diameter of the roll material decreases, thereby improving the stability of the roll material during the feeding process.

[0023] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the utility model embodiments, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0026] Figure 2 This is a schematic diagram of the structure of this utility model from a rear-view perspective;

[0027] Figure 3 This is an exploded view of the transmission component of this utility model;

[0028] Figure 4 For the present utility model Figure 3 Enlarged schematic diagram of the local structure at point A;

[0029] Figure 5 This is a schematic diagram of the internal structure of the extrusion assembly of this utility model;

[0030] Figure 6For the present utility model Figure 5 Enlarged schematic diagram of the local structure at point B;

[0031] Figure 7 For the present utility model Figure 5 A magnified schematic diagram of the local structure at point C.

[0032] The attached diagram lists the components represented by each number as follows:

[0033] 1. Feeding device body; 2. Limiting assembly; 201. Support frame; 202. Limiting cylinder; 3. Guiding assembly; 301. Rotating shaft; 302. Guide roller; 4. Transmission assembly; 401. Drive gear; 402. First transmission gear; 403. Connecting shaft; 404. Second transmission gear; 405. Internal gear ring; 5. Connecting assembly; 501. Turntable; 502. Arc groove; 503. Connecting rod; 504. Limiting frame; 505. Connecting plate; 506. Mounting rod; 6. Extrusion assembly; 601. Mounting cylinder; 602. Extension rod; 603. Spring; 604. Extrusion wheel. Detailed Implementation

[0034] The technical solutions of the utility model embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the utility model, and not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the utility model.

[0035] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0036] Please see Figures 1-7 As shown, this utility model is a roll material feeding device for a laser cutting machine, including a feeding device body 1:

[0037] The feeding device body 1 is respectively provided with a limit component 2, a guide component 3, a transmission component 4, a connecting component 5, and a pressing component 6;

[0038] The limiting component 2 is fixedly installed at the top of the bottom feeding device body 1 so that the limiting component 2 can limit the roll material on the feeding device body 1.

[0039] The guide component 3 is rotatably disposed with respect to the interior of the limiting component 2, so that the guide component 3 guides the roll material inside the limiting component 2;

[0040] The transmission component 4 is fixedly installed inside the output end of the feeding device body 1 so that the transmission component 4 is driven to rotate when the feeding device body 1 is running.

[0041] The connecting component 5 is fixedly connected to one side of the transmission component 4 so that when the transmission component 4 rotates, it drives the connecting component 5 to move downward.

[0042] The top end of the extrusion assembly 6 is fixedly installed to the bottom end of the connecting assembly 5 so that when the connecting assembly 5 moves downward, it drives the extrusion assembly 6 to extrude the roll material.

[0043] In use, the roll material is installed at the output end of the feeding device body 1, and the surface of the extrusion component 6 is made to fit against the surface of the roll material. Then, the steel strip fixed to the surface of the roll material is removed so that the winding stress of the roll material acts on the surface of the extrusion component 6, thereby preventing the roll material from instantly springing open after losing its restraint. Then, one end of the roll material is passed through the guide component 3 and connected to one end of the mechanical cutting machine. When the feeding device body 1 rotates to feed the material, it can drive the transmission component 4 installed on its outer surface to rotate, so that it drives the connecting component 5 to move downward, thereby driving the extrusion component 6 to move in the direction of the roll material, so that it always keeps extruding the roll material. Since the transmission ratio between the transmission component 4 and the feeding device body 1 is specifically set, it can work with the connecting component 5 to drive the extrusion component 6 to move at a speed that corresponds to the change in the diameter of the roll material, thereby enabling it to always apply extrusion force to the roll material to prevent the roll material from deviating during the feeding process.

[0044] This invention, by attaching the surface of the extrusion component 6 to the surface of the roll material, prevents the roll material from instantly springing open after losing its restraint. Then, one end of the roll material is passed through the guide components 3 and connected to one end of the mechanical cutting machine. When the feeding device body 1 rotates to feed the material, it can drive the transmission component 4 mounted on its outer surface to rotate, thereby causing the connecting component 5 to move downward. This allows the extrusion component 6 to move towards the roll material, ensuring that it always compresses the roll material. Since the transmission ratio between the transmission component 4 and the feeding device body 1 is specifically set, it can work with the connecting component 5 to drive the extrusion component 6 to move at a speed that corresponds to the change in the diameter of the roll material. This ensures that the extrusion component 6 always applies compressive force to the roll material, thereby improving the stability and safety of the roll material during the unwinding and feeding process.

[0045] In one embodiment, the limiting component 2 includes a support frame 201, the bottom end of the support frame 201 is fixedly installed at the top end of the feeding device body 1, and a limiting cylinder 202 is fixedly installed on one side of the support frame 201, the limiting cylinder 202 being sleeved on the outside of the feeding device body 1.

[0046] The support frame 201 is designed to fit the limiting cylinder 202 installed on one side of the feeding device body 1 on the outside, thereby limiting the installed roll material and preventing the roll material from suddenly opening and causing injury to the workers.

[0047] In one embodiment, the guide component 3 includes a rotating shaft 301, the outer surface of the rotating shaft 301 is rotatably disposed with the interior of the limiting cylinder 202, and a guide roller 302 is fixedly installed on the outer surface of the rotating shaft 301.

[0048] By passing one end of the roll material through the guide roller 302 and making its surface fit against the surface of the guide roller 302, scratches on the surface of the roll material can be avoided.

[0049] In one embodiment, the transmission component 4 includes a drive gear 401, the inside of which is fixedly installed with the output end of the feeding device body 1, a first transmission gear 402 meshing with the surface of the drive gear 401, a connecting shaft 403 fixedly installed inside the first transmission gear 402, and the outer surface of the connecting shaft 403 rotatably connected with the inside of the support frame 201.

[0050] A second transmission gear 404 is fixedly mounted on the outer surface of the connecting shaft 403, and an internal gear ring 405 is meshed on the surface of the second transmission gear 404.

[0051] When the feeding device body 1 rotates, it drives the drive gear 401 installed at its output end to rotate, which in turn drives the first transmission gear 402, which is surface-engaged, to rotate. Since the connecting shaft 403 is fixedly installed inside the first transmission gear 402, and the outer surface of the connecting shaft 403 is rotatably connected to the inside of the support frame 201, when the first transmission gear 402 rotates, it drives the connecting shaft 403 to rotate inside the support frame 201, which in turn drives the second transmission gear 404 installed on its outer surface to rotate, thereby driving the internal gear ring 405, which is surface-engaged, to rotate. Since the first transmission gear 402 and the second transmission gear 404 are of different sizes, the transmission ratio between the drive gear 401 and the internal gear ring 405 can be adjusted.

[0052] In one embodiment, the connecting component 5 includes a turntable 501, the interior of which is rotatably disposed with respect to the outer surface of the support frame 201, one side of which is fixedly connected to one side of the internal toothed ring 405, and one side of which is provided with an arc-shaped groove 502, and a connecting rod 503 is slidably disposed inside the arc-shaped groove 502.

[0053] The connecting assembly 5 also includes a limiting frame 504, one side of which is fixedly installed with one side of the limiting cylinder 202. A connecting plate 505 is slidably arranged inside the limiting frame 504. One side of the connecting plate 505 is fixedly connected to one end of the connecting rod 503, and the other side of the connecting plate 505 is fixedly connected to an installation rod 506.

[0054] When the internal gear ring 405 rotates along with the rotation of the second transmission gear 404, it drives the turntable 501 fixed on one side to rotate, thereby causing the connecting rod 503 to move in conjunction with the arc-shaped groove 502 on one side. Since the arc-shaped groove 502 is gradually set downward, when the arc-shaped groove 502 rotates, it can drive the connecting rod 503, which is slidably set inside, to move downward, so that it drives the connecting plate 505, which is fixed at one end, to move downward along the direction of the limiting frame 504, thereby driving the mounting rod 506, which is fixed on the other side, to move downward. The limiting frame 504 has a limiting groove inside, which can work with the limiting block slidably set inside to restrict the movement direction of the connecting plate 505, thereby improving the stability of the connecting plate 505 during movement.

[0055] In one embodiment, the extrusion assembly 6 includes a mounting cylinder 601, the top end of which is fixedly mounted to the bottom end of a mounting rod 506. An extension rod 602 is slidably disposed inside the mounting cylinder 601. A spring 603 is fixedly connected to the top end of the extension rod 602. One end of the spring 603 is fixedly connected to the inner wall of the mounting cylinder 601. An extrusion wheel 604 is fixedly mounted to the bottom end of the extension rod 602.

[0056] When the mounting rod 506 moves downward along with the connecting plate 505, it drives the mounting cylinder 601 mounted at its bottom to move downward, thereby causing the spring 603 fixed on the inner wall to move, so that it applies pressure to the extension rod 602 fixed at one end, thereby applying pressure to the extrusion roller 604 mounted at the bottom end, so that the extrusion roller 604 applies pressure to the surface of the roll material, thereby enabling it to move as the diameter of the roll material decreases, thereby improving the stability of the roll material during the feeding process.

[0057] Through the above technical solution, 1. by attaching the surface of the extrusion component 6 to the surface of the roll material, it is possible to prevent the roll material from instantly springing open after losing its restraint. Then, one end of the roll material is passed between the guide components 3 and connected to one end of the mechanical cutting machine. When the feeding device body 1 rotates to feed the material, it can drive the transmission component 4 installed on its outer surface to rotate, so that it drives the connecting component 5 to move downward, thereby driving the extrusion component 6 to move towards the roll material, so that it always keeps extruding the roll material. Since the transmission ratio between the transmission component 4 and the feeding device body 1 is specifically set, it can cooperate with the connecting component 5 to drive the extrusion component 6 to move at a speed that corresponds to the change in the diameter of the roll material, thereby enabling it to always apply extrusion pressure to the roll material, thereby improving the stability and safety of the roll material during the unwinding and feeding process.

[0058] 2. The movement of the connecting plate 505 causes the mounting rod 506 to move downward, which in turn causes the mounting cylinder 601 mounted at its bottom to move downward. This causes the spring 603 fixed on the inner wall to move, so that it applies pressure to the extension rod 602 fixed at one end, which in turn applies pressure to the extrusion roller 604 mounted at the bottom end. This causes the extrusion roller 604 to apply pressure to the surface of the roll material, so that it can move as the diameter of the roll material decreases, thereby improving the stability of the roll material during the feeding process.

[0059] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0060] The preferred embodiments of the utility model disclosed above are merely illustrative of the utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the utility model, thereby enabling those skilled in the art to better understand and utilize it. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A roll material feeding device for a laser cutting machine, comprising a feeding device body (1), characterized in that: The feeding device body (1) is respectively provided with a limit component (2), a guide component (3), a transmission component (4), a connecting component (5) and a pressing component (6). The limiting component (2) is fixedly installed at the top of the bottom feeding device body (1) so that the limiting component (2) limits the roll material on the feeding device body (1); The outer surface of the guide component (3) is rotatably disposed with respect to the interior of the limiting component (2) so that the guide component (3) guides the roll material inside the limiting component (2); The transmission assembly (4) is fixedly installed inside the output end of the feeding device body (1) so that the transmission assembly (4) is driven to rotate when the feeding device body (1) is running. The connecting component (5) is fixedly connected to one side of the transmission component (4) so ​​that the connecting component (5) is driven to move downward when the transmission component (4) rotates; The top end of the extrusion assembly (6) is fixedly installed with the bottom end of the connecting assembly (5) so that when the connecting assembly (5) moves downward, it drives the extrusion assembly (6) to extrude the roll material. The transmission assembly (4) includes a drive gear (401), the inside of which is fixedly installed with the output end of the feeding device body (1), a first transmission gear (402) meshing with the surface of the drive gear (401), a connecting shaft (403) fixedly installed inside the first transmission gear (402), and the outer surface of the connecting shaft (403) rotatably connected with the inside of the support frame (201). The outer surface of the connecting shaft (403) is fixedly mounted with a second transmission gear (404), and the surface of the second transmission gear (404) is meshed with an internal gear ring (405).

2. The roll material feeding device for a laser cutting machine according to claim 1, characterized in that, The limiting component (2) includes a support frame (201), which is fixedly installed at the bottom end of the feeding device body (1) and a limiting cylinder (202) is fixedly installed on one side of the support frame (201). The limiting cylinder (202) is sleeved on the outside of the feeding device body (1).

3. The roll material feeding device for a laser cutting machine according to claim 2, characterized in that, The guide assembly (3) includes a rotating shaft (301), the outer surface of the rotating shaft (301) is rotatably disposed with the inside of the limiting cylinder (202), and a guide roller (302) is fixedly installed on the outer surface of the rotating shaft (301).

4. The roll material feeding device for a laser cutting machine according to claim 3, characterized in that, The connecting component (5) includes a turntable (501), the interior of which is rotatably connected to the outer surface of the support frame (201), one side of which is fixedly connected to one side of the internal toothed ring (405), and an arc groove (502) is provided on one side of the turntable (501), and a connecting rod (503) is slidably arranged inside the arc groove (502).

5. The roll material feeding device for a laser cutting machine according to claim 4, characterized in that, The connecting assembly (5) further includes a limiting frame (504), one side of which is fixedly installed with one side of the limiting cylinder (202). A connecting plate (505) is slidably arranged inside the limiting frame (504). One side of the connecting plate (505) is fixedly connected to one end of the connecting rod (503), and the other side of the connecting plate (505) is fixedly connected to an installation rod (506).

6. The roll material feeding device for a laser cutting machine according to claim 5, characterized in that, The extrusion assembly (6) includes an installation cylinder (601), the top end of which is fixedly installed with the bottom end of an installation rod (506). An extension rod (602) is slidably arranged inside the installation cylinder (601). A spring (603) is fixedly connected to the top end of the extension rod (602). One end of the spring (603) is fixedly connected to the inner wall of the installation cylinder (601). An extrusion wheel (604) is fixedly installed at the bottom end of the extension rod (602).