Aluminum foil unwinding device

Abstract

An aluminum foil unwinding device comprises an unwinding structure and a transfer structure, the unwinding structure is provided with at least one fixing shaft used for being inserted into an aluminum foil roll, the transfer structure comprises a movable plate body, two supporting frames arranged on the two sides of the movable plate body and a rotating shaft, and the two ends of the rotating shaft are rotationally connected with the tops of the two supporting frames correspondingly. And the fixing frame is arranged on the rotating shaft and is used for fixing the aluminum foil roll. By arranging the transferring structure, the transferring structure completes feeding of the aluminum foil rolls in a rotating mode, the process that the aluminum foil rolls are lifted manually is avoided, labor is saved, meanwhile, the rotating work efficiency is improved, and the aluminum foil roll feeding device has the advantages of being simple in structure and high in practicability.

Description

Technical Field

[0001] The utility model belongs to the technical field of aluminum foil processing equipment, and particularly relates to an aluminum foil unwinding device. Background Art

[0002] An aluminum foil unwinder is a machine used in aluminum foil production, primarily for rapid unwinding. Compared to traditional manual unwinding methods, this automatic unwinder improves production efficiency, reduces labor costs, and eases operational complexity. It is commonly used in industries such as food packaging and pharmaceutical packaging. It automatically unwinds and flattens aluminum foil rolls, improving production efficiency. Due to the heavy weight of a new roll of aluminum foil, installing it on the unwinder is inconvenient, labor-intensive, and difficult. This results in inefficient roll replacement, impacting production efficiency.

[0003] The document with authorization announcement number CN220787540U discloses an aluminum foil unwinding mechanism and its unwinding machine, including a base and a cart. A front left bracket is provided on the left front part of the base, and the top of the front left bracket is rotatably connected to an unwinding roller. A left positioning ring is provided on the unwinding roller, and an aluminum foil roll is inserted on the unwinding roller. The top front side of the base is laterally slidably connected to a cart, and the top of the cart is provided with a lifting mechanism for lifting the aluminum foil roll.

[0004] However, the device still has the following problems: the lifting mechanism still has a certain height, and placing the heavy aluminum foil roll on the lifting mechanism still requires manpower. At the same time, the driving force required to drive the lifting mechanism to lift by rotating the rotating rod is large, which consumes manpower and is relatively inefficient. Utility Model Content

[0005] In response to the above-mentioned problems, the purpose of the present utility model is to provide an aluminum foil unwinding device. By setting up a transfer structure, the transfer structure completes the loading of the aluminum foil roll by rotation, avoiding the process of manually lifting the aluminum foil roll, saving manpower while also improving the rotation efficiency. It has the advantages of simple structure and strong practicality.

[0006] In order to achieve the above purpose, the technical solution of the utility model is as follows:

[0007] An aluminum foil unwinding device includes an unwinding structure and a transfer structure. The unwinding structure has at least one fixed shaft for inserting an aluminum foil roll. The transfer structure includes a movable plate, two support frames arranged on both sides of the movable plate, a rotating shaft with two ends respectively connected to the tops of the two support frames for rotation, and a fixed frame arranged on the rotating shaft and used to fix the aluminum foil roll.

[0008] As a further preference of the present invention, the fixing frame includes two clamps, one end of the clamp is a rotating end, and the other end is a free end; the rotating ends of the two clamps are rotatably connected to the rotating shaft, and the free ends of the two clamps are far away from each other to form a space for fixing the aluminum foil roll.

[0009] As a further preferred embodiment of the present invention, the fixing frame further includes tension springs arranged on opposite sides of the two clamping plates close to the rotating ends.

[0010] As a further preferred embodiment of the present invention, the fixing frame further includes two through holes respectively provided at the two clamping plates near the rotating ends, and an arc-shaped plate with both ends respectively connected to the two through holes in a sliding manner.

[0011] As a further preferred embodiment of the present invention, the fixing frame further includes two limiting protrusions respectively provided on both ends of the arc-shaped plate.

[0012] As a further preference of the present invention, the transfer structure further includes two fixing members arranged on both side ends of the rotating shaft and used to be inserted from both ends of the aluminum foil roll to fix the aluminum foil roll.

[0013] As a further preferred embodiment of the present invention, the fixing member includes a strip plate arranged on the rotating shaft, a first strip hole arranged on the side end of the strip plate away from the rotating shaft, a fixing screw passing through the first strip hole and plugged into the aluminum foil roll, and two first clamping nuts arranged on both sides of the strip plate and screwed to the fixing screw.

[0014] As a further preferred embodiment of the present invention, the fixing member also includes a second strip hole arranged on the end of the strip plate away from the rotating shaft, a limiting screw with two ends respectively connected to the two second strip holes, and two second clamping nuts arranged on both sides of the strip plate and threadedly connected to the limiting screw.

[0015] As a further preferred embodiment of the present invention, the support frame includes a lifting motor arranged on the movable plate body, a vertical plate connected to the output end of the lifting motor, a fixed horizontal plate arranged at the top of the vertical plate and parallel to the movable plate body, and a driving motor arranged on the side end of the fixed horizontal plate and used to drive the rotating shaft to rotate.

[0016] As a further preferred embodiment of the present invention, the support frame further includes a support vertical plate arranged on the movable plate body and parallel to the vertical plate, a fixed plate arranged on the vertical plate, and a support connecting rod for connecting the support vertical plate and the fixed plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Attachment Figure 1 It is a structural diagram of the present utility model.

[0018] Attachment Figure 2 It is a structural schematic diagram of the transfer structure of the utility model from the main viewing angle.

[0019] Attachment Figure 3 This is a schematic diagram of the structure of the rotating structure of the utility model when viewed from the side.

[0020] Attachment Figure 4 It is a schematic diagram of the three-dimensional structure of the splint of the utility model.

[0021] Description of the accompanying drawings: aluminum foil roll a, unwinding structure 1, transfer structure 2;

[0022] Fixed shaft 11, bottom plate 12, slide groove 13, vertical side plate 14, positioning rod 15;

[0023] Moving plate 21, support frame 22, rotating shaft 23, fixing frame 24, fixing member 25;

[0024] Pulley 211, positioning groove 212;

[0025] Lifting motor 221, vertical plate 222, fixed horizontal plate 223, driving motor 224, supporting vertical plate 225, fixed plate 226, supporting connecting rod 227;

[0026] Clamping plate 241, tension spring 242, through hole 243, arc-shaped plate 244, limiting protrusion 245;

[0027] Strip plate 251 , first strip hole 252 , fixing screw 253 , first clamping nut 254 , second strip hole 255 , limiting screw 256 , second clamping nut 257 . DETAILED DESCRIPTION

[0028] In the description of the present utility model, it should be understood that the terms "upper", "lower", "inside", "outside", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the utility model product is usually placed when in use, or are directions or positional relationships commonly understood by those skilled in the art. These directions or positional relationships are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present utility model.

[0029] In addition, the terms "first", "second", etc. are only used to distinguish and describe, and should not be understood as indicating or implying relative importance.

[0030] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, terms such as "disposed" and "connected" should be understood broadly. For example, "connected" may refer to a fixed connection, a detachable connection, or an integral connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0031] This embodiment provides an aluminum foil unwinding device, as shown in the attached Figure 1 ~Attached Figure 4 As shown, it includes an unwinding structure 1 and a transfer structure 2, the unwinding structure 1 has at least one fixed shaft 11 for inserting the aluminum foil roll a, the transfer structure 2 includes a movable plate body 21, two support frames 22 arranged on both sides of the movable plate body 21, a rotating shaft 23 with two ends respectively connected to the top of the two support frames 22 for rotation, and a fixing frame 24 arranged on the rotating shaft 23 and used to fix the aluminum foil roll a.

[0032] It is understood that, in order to facilitate transport, a pulley 211 is provided on the lower surface of the movable plate 21. The unwinding structure 1 includes a bottom plate 12 and a vertical side plate 14 provided on the side end of the bottom plate 12. The vertical side plate 14 is rotatably connected to a fixed shaft 11. The fixed shaft 11 is preferably detachably mounted on the vertical side plate 14 to accommodate aluminum foil rolls a of different specifications. In order to facilitate the fixing of the transfer structure 2, a slide 13 for the pulley 211 to slide into is provided on the bottom plate 12. A positioning rod 15 is provided at the lower portion of the vertical side plate 14. Correspondingly, a positioning groove 212 is provided on the side end of the movable plate 21 to match the positioning rod 15. By plugging the positioning groove 212 into the positioning rod 15, the transfer structure 2 is tightly connected to the unwinding structure 1 after being installed on the unwinding structure 1, facilitating the stable transfer of the aluminum foil roll a from the transfer structure 2 to the unwinding structure 1.

[0033] In this embodiment, the support frame 22 includes a lifting motor 221 arranged on the movable plate body 21, a vertical plate 222 connected to the output end of the lifting motor 221, a fixed horizontal plate 223 arranged at the top of the vertical plate 222 and parallel to the movable plate body 21, a driving motor 224 arranged on the side end of the fixed horizontal plate 223 and used to drive the rotating shaft 23 to rotate, a supporting vertical plate 225 arranged on the movable plate body 21 and parallel to the vertical plate 222, a fixed plate 226 arranged on the vertical plate 222, and a supporting connecting rod 227 for connecting the supporting vertical plate 225 and the fixed plate 226.

[0034] The lifting motor 221 utilizes an existing structure, such as a cylinder. A crossbar can be positioned between the two vertical plates 222, serving both as reinforcement and as a handle. The fixed horizontal plate 223 is used to mount the rotating shaft 23, ensuring that the fixing frame 24 is unobstructed during rotation, facilitating the securement and transport of the aluminum foil roll A. The structure of the supporting vertical plates 225, fixing plate 226, and supporting connecting rod 227, used to reinforce the support of the vertical plates 222, is well known to those skilled in the art and will not be further described in this embodiment.

[0035] In this embodiment, the fixing frame 24 includes two clamping plates 241, one end of each clamping plate 241 being a rotating end and the other end being a free end. The rotating ends of the two clamping plates 241 are both rotatably connected to the rotating shaft 23, and the free ends of the two clamping plates 241 are spaced apart from each other to form a space for securing the aluminum foil roll a. When mounted on the rotating shaft 23, the two clamping plates 241 form an adjustable V-shaped structure within which the aluminum foil roll a is positioned. Furthermore, the fixing frame 24 preferably includes a tension spring 242 disposed on opposing sides of the two clamping plates 241 near the rotating ends. The tension spring 242 is disposed at the bottom of the V-shaped internal structure and acts to force the two clamping plates 241 toward each other. When the aluminum foil roll a is placed within the V-shaped structure, the tension spring 242 pulls the two clamping plates 241 to clamp the aluminum foil roll a, thereby enhancing the securing effect.

[0036] As a further preferred embodiment of this embodiment, the fixing frame 24 further includes two through-holes 243 disposed near the rotating ends of the two clamping plates 241, a curved plate 244 slidably connected to the two through-holes 243 at both ends, and two limiting protrusions 245 disposed on both ends of the curved plate 244. The structures of the through-holes 243 and the curved plate 244 match the rotational trajectory of the clamping plates 241. The main body of the curved plate 244 is mounted within the V-shaped structure to protect and cover the tension spring 242, while also preventing the aluminum foil roll a from being damaged due to direct contact with the tension spring 242.

[0037] The unwinding device provided in this embodiment works as follows:

[0038] The drive motor 224 drives the rotating shaft 23 to rotate the fixed frame 24, causing the V-shaped structure formed by the two clamping plates 241 to open downward. The transfer structure 2 is moved as a whole to the aluminum foil roll a to be loaded, aligning the V-shaped structure with the aluminum foil roll a. The lifting motor 221 is driven to lower the fixed cross plate 223, causing the V-shaped structure to clamp the aluminum foil roll a. The drive motor 224 is then started to drive the rotating shaft 23 to rotate the fixed frame 24, causing the V-shaped structure to rotate the aluminum foil roll a 180 degrees until the V-shaped structure opens upward, at which point the aluminum foil roll a is secured. Finally, the transfer structure 2 is moved as a whole to the unwinding structure 1, and the lifting motor 221 is controlled to adjust the height of the V-shaped structure, ultimately aligning the aluminum foil roll a with the fixed shaft 11 on the unwinding structure 1. The aluminum foil roll a is then pushed to transfer the entire aluminum foil roll a to the fixed shaft 11, completing the loading of the aluminum foil roll a onto the unwinding structure 1.

[0039] Compared with the prior art, the unwinding device provided in this embodiment has the following advantages: the loading of the aluminum foil roll is completed by rotation, which avoids the process of manually lifting the aluminum foil roll, saves manpower and improves the rotation efficiency.

[0040] Example 2

[0041] This embodiment optimizes the transfer structure 2 based on the embodiment 1, specifically as follows:

[0042] The transfer structure 2 also includes two fixing members 25 arranged on both side ends of the rotating shaft 23 and used to be inserted from both ends of the aluminum foil roll a to fix the aluminum foil roll a; the fixing member 25 includes a strip plate 251 arranged on the rotating shaft 23, a first strip hole 252 arranged on the side end of the strip plate 251 away from the rotating shaft 23, a fixing screw 253 passing through the first strip hole 252 and plugged into the aluminum foil roll a, and two first clamping nuts 254 arranged on both sides of the strip plate 251 and screwed to the fixing screw 253.

[0043] In this embodiment, the transfer structure 2 further enhances its ability to secure the aluminum foil roll a by interlocking the fixing screw 253 with the aluminum foil roll a and securing the fixing screw 253 to the strip plate 251. This is particularly true when the V-shaped structure is facing downward. After the V-shaped structure is facing upward, the fixing member 25 on one end of the unwinding structure 1 can be removed, allowing the aluminum foil roll a to smoothly engage with the fixed shaft 11. During the transfer of the aluminum foil roll a to the fixed shaft 11, force can be applied to the aluminum foil roll a by grasping the unremoved fixing member 25 on the other side, avoiding direct force on the surface of the aluminum foil roll a and causing damage. Once the aluminum foil roll a is fully transferred to the fixed shaft 11, the fixing member 25 on the other end can be removed. It should be noted that this requires a certain length for the fixing screw 253 to prevent it from interfering with the insertion of the fixed shaft 11 into the aluminum foil roll a.

[0044] As a further preferred embodiment of this embodiment, the fixing member 25 further includes a second strip-shaped hole 255 provided on the end of the strip plate 251 away from the rotating shaft 23, a stop screw 256 whose ends are respectively plugged into the two second strip holes 255, and two second clamping nuts 257 provided on either side of the strip plate 251 and threadedly connected to the stop screw 256. This arrangement allows the stop screw 256 to be fixed to the strip plate 251 to position and secure the aluminum foil roll a, particularly providing support for the aluminum foil roll a when the V-shaped structure opens downward. Furthermore, a buffer layer may be provided over the stop screw 256 to protect the connection between the stop screw 256 and the aluminum foil roll a. The buffer layer may be a structure such as a rubber sleeve, and will not be described in detail in this embodiment.

[0045] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. An aluminum foil unwinding device, comprising an unwinding structure (1) and a transfer structure (2), wherein the unwinding structure (1) has at least one fixed shaft (11) for inserting an aluminum foil roll (a), and is characterized in that: The transfer structure (2) comprises a movable plate (21), two support frames (22) arranged on both sides of the movable plate (21), a rotating shaft (23) with two ends respectively connected to the tops of the two support frames (22) for rotation, and a fixing frame (24) arranged on the rotating shaft (23) and used to fix the aluminum foil roll (a).

2. The aluminum foil unwinding device according to claim 1, characterized in that: The fixing frame (24) comprises two clamping plates (241), one end of each clamping plate (241) being a rotating end and the other end being a free end; the rotating ends of the two clamping plates (241) are both rotatably connected to the rotating shaft (23), and the free ends of the two clamping plates (241) are spaced apart from each other to form a space for fixing the aluminum foil roll (a).

3. The aluminum foil unwinding device according to claim 2, characterized in that: The fixing frame (24) further includes tension springs (242) arranged on opposite sides of the two clamping plates (241) close to the rotating ends.

4. The aluminum foil unwinding device according to claim 3, characterized in that: The fixing frame (24) further comprises two through holes (243) respectively arranged on the two clamping plates (241) near the rotating ends, and an arc-shaped plate (244) with both ends respectively connected in a sliding manner to the two through holes (243).

5. The aluminum foil unwinding device according to claim 4, characterized in that: The fixing frame (24) further includes two limiting protrusions (245) respectively arranged on both ends of the arc-shaped plate (244).

6. The aluminum foil unwinding device according to claim 2, characterized in that: The transfer structure (2) further includes two fixing members (25) arranged on both side ends of the rotating shaft (23) and used to be inserted from both ends of the aluminum foil roll (a) to fix the aluminum foil roll (a).

7. The aluminum foil unwinding device according to claim 6, characterized in that: The fixing member (25) includes a strip plate (251) arranged on the rotating shaft (23), a first strip hole (252) arranged on the side end of the strip plate (251) away from the rotating shaft (23), a fixing screw (253) passing through the first strip hole (252) and plugged into the aluminum foil roll (a), and two first clamping nuts (254) arranged on both sides of the strip plate (251) and screwed to the fixing screw (253).

8. The aluminum foil unwinding device according to claim 7, characterized in that: The fixing member (25) further comprises a second strip hole (255) provided on the end of the strip plate (251) away from the rotating shaft (23), a limiting screw (256) with two ends respectively plugged into the two second strip holes (255), and two second clamping nuts (257) provided on both sides of the strip plate (251) and screwed into the limiting screw (256).

9. The aluminum foil unwinding device according to claim 1, characterized in that: The support frame (22) includes a lifting motor (221) arranged on the movable plate body (21), a vertical plate (222) connected to the output end of the lifting motor (221), a fixed horizontal plate (223) arranged at the top end of the vertical plate (222) and parallel to the movable plate body (21), and a driving motor (224) arranged on the side end of the fixed horizontal plate (223) and used to drive the rotating shaft (23) to rotate.

10. The aluminum foil unwinding device according to claim 9, characterized in that: The support frame (22) further includes a support vertical plate (225) arranged on the movable plate body (21) and parallel to the vertical plate (222), a fixed plate (226) arranged on the vertical plate (222), and a support connecting rod (227) for connecting the support vertical plate (225) and the fixed plate (226).

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