Negative pressure adsorption type film connecting shaft

Abstract

The utility model discloses a negative pressure adsorption type film connecting shaft, which belongs to the technical field of adsorption fixing devices and comprises a rubber shaft tube, a vacuum cavity is arranged in the rubber shaft tube, a negative pressure component is communicated onto the vacuum cavity, a plurality of first adsorption holes are axially arranged on the rubber shaft tube, and the first adsorption holes are communicated with the vacuum cavity. A cutter groove is formed in the rubber shaft pipe in the axial direction of the rubber shaft pipe, and the cutter groove is located in one side of the multiple first adsorption holes. According to the utility model, the negative pressure adsorption fixation of the film material can be realized, the positioning stability is improved, the hemming problem is reduced, and the use convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of adsorption and fixing devices, in particular to a negative pressure adsorption type film-joining shaft. Background Art

[0002] The packaging machine makes the film material on the roll into a flexible packaging bag. After the film material on the roll is used, it needs to be docked and bonded with the film material on the new roll. The traditional bonding method requires lifting the joint of the film material on the new roll, and then manually supporting it or using other film pressing tools to press and fix it. When manually supporting it, the stability is poor and it is easy to wrinkle. When using film pressing tools, the joint of the roll film is easy to curl, resulting in poor docking effect and inconvenient use.

[0003] Therefore, a negative pressure adsorption film-joining shaft is proposed. Utility Model Content

[0004] The utility model aims to provide a negative pressure adsorption film-joining shaft, aiming to solve or improve at least one of the above-mentioned technical problems.

[0005] To achieve the above-mentioned purpose, the utility model provides the following scheme: The utility model provides a negative pressure adsorption film-joining shaft, comprising a rubber shaft tube, a vacuum cavity is arranged in the rubber shaft tube, a negative pressure component is connected to the vacuum cavity, a plurality of first adsorption holes are opened in the axial direction of the rubber shaft tube, and the first adsorption holes are connected to the vacuum cavity;

[0006] The rubber shaft tube is provided with a knife groove, the knife groove is arranged along the axial direction of the rubber shaft tube, and the knife groove is located on one side of the plurality of first adsorption holes.

[0007] Preferably, the first adsorption hole is a threaded hole, and a first bolt is threadedly connected to the first adsorption hole.

[0008] Preferably, a through hole end and a sealing end are fixedly connected at both ends of the rubber shaft tube, and a through hole communicating with the vacuum chamber is opened on the through hole end, and the through hole is fixedly connected and communicated with an external negative pressure component through an air pipe.

[0009] Preferably, a through groove communicating with the vacuum chamber is provided on the rubber shaft tube, an air circuit board is fixedly connected in the through groove, and a plurality of the first adsorption holes are provided on the air circuit board.

[0010] Preferably, a groove is provided on the gas circuit plate, a knife plate is fixed in the groove, and the knife plate is provided with the knife groove.

[0011] Preferably, the outer fixed sleeve of the rubber shaft tube is provided with a silicone sleeve, the air circuit plate is located in the silicone sleeve and contacts the inner wall of the silicone sleeve, a plurality of second adsorption holes are opened on the silicone sleeve, the plurality of second adsorption holes are arranged one-to-one correspondingly to the plurality of first adsorption holes, and the silicone sleeve is provided with an opening corresponding to the knife plate.

[0012] Preferably, the size of the second adsorption hole is not smaller than the size of the first adsorption hole.

[0013] The utility model discloses the following technical effects: when new and old film materials need to be butt-jointed, the film material on the new roll is lifted up, placed on the rubber shaft tube, and covered on the first adsorption hole, and negative pressure is provided to the vacuum chamber by a negative pressure component, so that the first adsorption hole generates an adsorption force on the film material to prevent the film material from falling, and the tool is aligned with the position of the knife groove to cut, and the excess film material in the new film material is cut off. Since the knife groove is located on one side of the first adsorption hole, the first adsorption hole firmly adsorbs the joint of the new film material on the rubber shaft tube at this time, thereby realizing the positioning of the film material, improving the positioning stability, and at the same time reducing the occurrence of curling problems, thereby improving ease of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0015] Figure 1 It is an axonometric drawing of the utility model;

[0016] Figure 2 It is an exploded view of the utility model;

[0017] Figure 3 It is a schematic diagram of the structure of the utility model;

[0018] Figure 4 for Figure 3 Cross-section view along the AA direction.

[0019] In the figure: 1, rubber shaft tube; 2, vacuum chamber; 3, first adsorption hole; 4, knife groove; 5, first bolt; 6, through hole end; 7, sealing end; 8, through hole; 9, air path plate; 10, knife plate; 11, silicone sleeve; 12, second adsorption hole. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0022] Reference Figure 1-Figure 4 The utility model provides a negative pressure adsorption film-joining shaft, including a negative pressure adsorption film-joining shaft, including a rubber shaft tube 1, a vacuum chamber 2 is arranged in the rubber shaft tube 1, a negative pressure component is connected to the vacuum chamber 2, and a plurality of first adsorption holes 3 are opened in the axial direction of the rubber shaft tube 1, and the first adsorption holes 3 are connected to the vacuum chamber 2;

[0023] The rubber shaft tube 1 is provided with a knife groove 4, which is arranged along the axial direction of the rubber shaft tube 1, and is located on one side of the plurality of first adsorption holes 3;

[0024] When the new and old film materials need to be connected, the film material on the new roll is lifted up, placed on the rubber shaft tube 1, and covered on the first adsorption hole 3. The vacuum chamber 2 is provided with negative pressure through the negative pressure component, so that the first adsorption hole 3 generates adsorption force on the film material to prevent the film material from falling. The tool is aligned with the position of the knife groove 4 to cut off the excess film material in the new film material. Since the knife groove 4 is located on one side of the first adsorption hole 3, the first adsorption hole 3 firmly adsorbs the joint of the new film material on the rubber shaft tube 1 at this time, so as to realize the positioning of the film material, improve the positioning stability, reduce the occurrence of curling problems, and improve the convenience of use.

[0025] According to a further optimized solution, the first adsorption hole 3 is a threaded hole, and a first bolt 5 is threadedly connected to the first adsorption hole 3;

[0026] A plurality of first adsorption holes 3 are sequentially opened along the length direction of the rubber shaft tube 1. When the width of the membrane material is narrow, the first bolts 5 are threadedly connected to the redundant first adsorption holes 3 according to the width of the membrane material to close them, thereby adjusting the adsorption width, meeting the requirements for connecting membranes of different widths, and improving convenience.

[0027] To further optimize the solution, the two ends of the rubber shaft tube 1 are respectively fixed with a through hole end 6 and a sealing end 7, and the through hole end 6 is provided with a through hole 8 connected to the vacuum chamber 2. The through hole 8 is fixedly connected and connected to an external negative pressure component (not shown in the figure) through an air pipe.

[0028] To further optimize the solution, a through groove communicating with the vacuum chamber 2 is provided on the rubber shaft tube 1, an air circuit board 9 is fixed in the through groove, and a plurality of first adsorption holes 3 are provided on the air circuit board 9; the air circuit board 9 is embedded in the rubber shaft tube 1 for welding.

[0029] According to a further optimized solution, a groove is provided on the gas circuit plate 9, a knife plate 10 is fixed in the groove, and a knife groove 4 is provided on the knife plate 10; the knife plate 10 is connected to the gas circuit plate 9 by bolts.

[0030] Further optimization scheme, the outer fixed sleeve of the rubber shaft tube 1 is provided with a silicone sleeve 11, the air circuit board 9 is located in the silicone sleeve 11 and contacts the inner wall of the silicone sleeve 11, and a plurality of second adsorption holes 12 are provided on the silicone sleeve 11, and the plurality of second adsorption holes 12 are arranged one by one corresponding to the plurality of first adsorption holes 3; the silicone sleeve 11 is provided with an opening corresponding to the knife plate 10, so that the knife groove 4 on the knife plate 10 can leak out;

[0031] The silicone sleeve 11 uses food-grade silicone to ensure hygiene and safety.

[0032] According to a further optimization scheme, the size of the second adsorption hole 12 is not less than the size of the first adsorption hole 3 , so as to facilitate the installation and removal of the first bolt 5 .

[0033] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0034] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A negative pressure adsorption film-joining shaft, characterized in that: The invention comprises a rubber shaft tube (1), wherein a vacuum chamber (2) is arranged inside the rubber shaft tube (1), wherein the vacuum chamber (2) is connected to a negative pressure component, and wherein a plurality of first adsorption holes (3) are provided in the axial direction of the rubber shaft tube (1), wherein the first adsorption holes (3) are connected to the vacuum chamber (2); The rubber shaft tube (1) is provided with a knife groove (4), the knife groove (4) is arranged along the axial direction of the rubber shaft tube (1), and the knife groove (4) is located on one side of the plurality of first adsorption holes (3).

2. The negative pressure adsorption film-joining shaft according to claim 1, characterized in that: The first adsorption hole (3) is a threaded hole, and a first bolt (5) is threadedly connected to the first adsorption hole (3).

3. The negative pressure adsorption film-joining shaft according to claim 1, characterized in that: The two ends of the rubber shaft tube (1) are respectively fixedly connected with a through hole end (6) and a sealing end (7); the through hole end (6) is provided with a through hole (8) connected to the vacuum chamber (2); the through hole (8) is fixedly connected and connected to an external negative pressure component through an air pipe.

4. The negative pressure adsorption film-joining shaft according to claim 1, characterized in that: The rubber shaft tube (1) is provided with a through groove which is in communication with the vacuum chamber (2), an air path plate (9) is fixedly connected in the through groove, and a plurality of the first adsorption holes (3) are provided on the air path plate (9).

5. The negative pressure adsorption film-joining shaft according to claim 4, characterized in that: The gas path plate (9) is provided with a groove, a knife plate (10) is fixedly connected in the groove, and the knife plate (10) is provided with the knife groove (4).

6. The negative pressure adsorption film-joining shaft according to claim 5, characterized in that: The outer fixed sleeve of the rubber shaft tube (1) is provided with a silicone sleeve (11), the air path plate (9) is located inside the silicone sleeve (11) and contacts the inner wall of the silicone sleeve (11), the silicone sleeve (11) is provided with a plurality of second adsorption holes (12), the plurality of second adsorption holes (12) are arranged in a one-to-one correspondence with the plurality of first adsorption holes (3), and the silicone sleeve (11) is provided with an opening corresponding to the knife plate (10).

7. The negative pressure adsorption film-joining shaft according to claim 6, characterized in that: The size of the second adsorption hole (12) is not smaller than the size of the first adsorption hole (3).

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