Inovative film clamping mechanism for sleeve labeling machine

Abstract

An inovative film clamping mechanism for sleeve labeling machine comprises a fixed plate, a cam and multiple clamping components. The fixed plate defines a central axis and is coaxially aligned with the cam. The clamping components are arranged around the axis and positioned between the fixed plate and the guide plate. The surface of the fixed plate and the cam are equipped with multiple guide holes and a guide groove, respectively. Each clamping component includes two guide posts, which are movably set within one of the guide hole and the guide groove. The guide plate dives the clapming components to move along the guide holes, either towards or outward from the axis. This film clamp securely clamps pre-cut films in the sleeve labeling machine, enhancing cutting precision.

Description

Technical Field

[0001] This invention relates to an innovative film clamping mechanism for a labeling machine, and more particularly to a clamp for clamping films. Prior Technology

[0002] Existing labeling machines typically only have the functions of film conveying and labeling, and the fixture settings are limited to holding the labeling object. During the film cutting process, there is no dedicated fixture to stabilize the position of the film. Due to the lack of an effective clamping mechanism and the reliance on a single cutting action to complete the processing, the support for the film is limited to the short-term pressure near the cutting point, which cannot provide a stable fixing effect. The film is prone to displacement during cutting due to uneven force or vibration, resulting in uneven or even discontinuous cutting lines. This has a negative impact on the processing quality of the film and the overall operational stability, especially when processing thinner or highly flexible film materials. This can easily cause film damage or increase the scrap rate, and cannot meet the requirements of high-precision cutting. Summary of the Invention

[0003] To address the aforementioned deficiencies, this invention provides an innovative film clamping mechanism for a labeling machine, which clamps and fixes the pre-cut film to secure its position, thereby enhancing cutting accuracy and improving processing efficiency.

[0004] In view of this, the present invention provides an innovative film clamping mechanism for a labeling machine. The clamp includes: a fixed cover with a plurality of guide holes on its surface, the center of which defines an axis; a cam with a guide groove on its surface, the cam being coaxially arranged with the fixed cover; and a plurality of clamping members disposed between the fixed cover and the cam and arranged around the axis. Each clamping member has a guide post on its upper and lower surfaces, and the two guide posts are movably disposed in one of the guide holes and the guide groove, respectively.

[0005] The guide groove is a circulating track.

[0006] The guide groove has multiple actuation sections and multiple pause sections.

[0007] Each of the clamping components has a clamping surface.

[0008] The clamping surfaces are oriented toward the axis and are concave arc-shaped.

[0009] The clamping surfaces are arranged opposite to the axis and are in an outward convex arc shape.

[0010] It also includes a drive assembly connected to the cam.

[0011] The drive component consists of a plurality of gears that mesh with each other. Simple Explanation of the Diagram

[0012] Figure 1 is an exploded view of the external clamping fixture of the present invention.

[0013] Figures 2 and 3 are schematic diagrams of the operation of the external clamping fixture of the present invention.

[0014] Figure 4 is an exploded view of the internal clamping fixture of the present invention.

[0015] Figures 5 and 6 are schematic diagrams of the operation of the internal clamping fixture of the present invention. Implementation

[0016] To make the description of this disclosure detailed and complete, specific embodiments and examples of the present invention are described. However, these are not the only forms of implementing or applying the specific embodiments of the present invention. Other specific embodiments can be used to achieve the same or equivalent functions and steps.

[0017] Please refer to Figure 1, which is an exploded view of the parts of the present invention. In this embodiment, it is an external clamping fixture 10, which includes a fixed plate 11, a plurality of clamping members 12, a cam 13, and a baffle 14. An axis L is defined with the center of the fixed plate 11. The fixed plate 11 and the cam 13 are coaxially arranged, and the clamping members 12 are arranged around the axis L and disposed between the fixed plate 11 and the cam 13. The baffle 14 is arranged around the fixed plate 11 and the cam 13. The center post of the labeling machine passes through the center of the external clamping fixture 10, and the film passes through the baffle 14 and the fixed plate 11. The external clamping fixture 10 is disposed inside the labeling machine, adjacent to the film cutting device of the labeling machine.

[0018] The surface of the fixed disk 11 has a plurality of guide holes 111, arranged radially outward from the axis L. The upper surface of the cam 13 has a guide groove 131, which is a circulating cam groove surrounding the axis L. The guide groove 131 has a plurality of pause sections 131a and a plurality of actuating sections 131b spaced apart. In this embodiment, the pause sections 131a, the actuating sections 131b, and the guide holes 111 are arranged radially outward from the axis L. The number of clamping members 12 is five, and each clamping member 12 has an extension 123. The upper and lower surfaces of the extension 123 are respectively provided with two guide posts 121. The guide posts 121 located on the upper surface of the extension 123 are respectively inserted into the guide holes 111 and can move linearly in the direction of approaching and moving away from the axis L. The guide posts 121 located on the lower surface of the extension 123 are movably disposed in the guide groove 131. In addition, each clamping member 12 also includes a clamping surface 122, which is disposed away from the axis L and has an outward convex arc shape to push the film to maintain its stability.

[0019] Please refer to Figures 2 and 3, which are schematic diagrams of the operation of the external clamping fixture 10. When the cam 13 rotates, the guide posts 121 located in the pause sections 131a move away from the axis L as they pass through the actuation sections 131b. This causes the clamping members 12 to push the film outward. Through the clamping members 12 and the baffle 14, the film is stabilized. After the guide posts 121 leave the actuation sections 131b and move to the pause sections 131a, the guide posts 121 located in the guide holes 111 move towards the axis L, causing the clamping members 12 to retract inward toward the center.

[0020] Next, please refer to Figures 4 to 6, which illustrate an exploded view and operational schematic diagram of another embodiment of the present invention. The clamp is an internal clamping clamp 20, having a fixed disk 21 and a cam 23 coaxially arranged, and a plurality of clamping members 22 arranged around the axis L, clamped between the fixed disk 21 and the cam 23. Similarly, the surface of the fixed disk 21 is provided with a plurality of guide holes 211 evenly arranged radially outward from the axis L, and the upper surface of the cam 23... The surface is provided with a guide groove 231 surrounding the axis L. Similarly, the guide groove 231 has a plurality of pause sections 231a and actuation sections 231b spaced apart. Each clamping member 22 is provided with a clamping surface 222 and an extension 223. The clamping surfaces 222 are concave arc-shaped and face the axis L. The upper and lower surfaces of each extension 223 are respectively provided with a guide post 221. The guide posts 221 are movably disposed in the guide holes 211 and the guide groove 231.

[0021] In this embodiment, the number of the clamp holders 22 , the guide holes 211 , and the pause segments 231a and the actuating segments 231b is three, furthermore, the inner clamp-type clamp 20 is provided with a drive assembly 24 , the drive The moving assembly 24 contains a first gear 241 as well as a second gear 242 , the upper surface of the first gear 241 in connection with the lower surface of the cam 23 , the second gear 242 in conjunction with the first gear 241 . When installing to the casing machine, it is necessary to thread the center post of the casing machine and the film through the center of the inner clamp type clamp 20 so that the inner clamp type clamp 20 is adjacent to the film cutting device of the casing machine, in other embodiments, the casing machine may install two of the inner clamp type clamps 20 above and below the cutting area to improve stability. When the drive assembly 24 drives the cam 23 in rotation, those guide posts 221 located in the guide slot 231 are located in the guide holes 211 when they leave the pause segments 231 a and move to the actuating segments 231 b The guide column 221 will move linearly toward the spindle L, causing the clamps 22 to retract inward, and clamping the pre-cut film in conjunction with the center column of the film cutting device, thereby effectively stabilizing the film to solve the problem of uneven cutting due to instability.

[0022] Accordingly, an innovative sleeve labeling machine film clamping mechanism of the invention provides for clamping the film to improve the cutting precision, and according to different sleeve labeling machine mechanisms, an outer clamp type clamp 10 or an inner clamp type clamp 20 can be selected to implement the invention. It is worth mentioning that the drive assembly 24 driving the invention is not limited to the two embodiments described above, and in other embodiments, the drive assembly 24 may also be, but not limited to, magnetically driven or motor driven.

[0023] 10: Outer clamp type clamp 11, 21: Fixed plate 111, 211: Guide holes 12, 22: Clamp holders 121, 221: Guide posts 122, 222: Clamping surface 123,223: Extension 13, 23: Cam 131, 231: Guide slot 131a, 231a: pause segment 131b, 231b: action segment 14: Baffles 20: Inner clamp type clamp 24: Drive components 241: First gear 242: Second gear

Claims

1. An innovative film clamping mechanism for a labeling machine, comprising: a fixed cover with a plurality of guide holes on its surface, the center of the fixed cover defining an axis; a cam with a guide groove on its surface, the cam being coaxially arranged with the fixed cover; and a plurality of clamping members disposed between the fixed cover and the cam, arranged around the axis, each clamping member having a guide post on its upper and lower surfaces, the guide posts being movably disposed in one of the guide holes and the guide groove; wherein, The guide rail is a circular track with multiple actuation sections and multiple pause sections spaced apart.

2. The innovative film clamping mechanism for a labeling machine as described in claim 1, wherein each clamping member has a clamping surface.

3. The innovative film clamping mechanism of the labeling machine as described in claim 2, wherein the clamping surfaces are arranged facing the axis and are concave arc-shaped.

4. The innovative film clamping mechanism of the labeling machine as described in claim 2, wherein the clamping surfaces are arranged opposite to the axis and are in an outwardly convex arc shape.

5. The innovative film clamping mechanism of the labeling machine as described in claim 1, wherein a drive assembly is further provided and connected to the cam.

6. The innovative film clamping mechanism of the labeling machine as described in claim 5, wherein the drive assembly is a plurality of gears that are meshed together.

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