Vacuum box body wrapping machine

Abstract

The utility model discloses a vacuum box body wrapping machine which comprises a machine base, a concentric type wrapping main machine and a vacuum box, the vacuum box is installed on the machine base, and the concentric type wrapping main machine, a wrapping main machine tension motor, a wrapping main machine spindle motor and a wrapping main machine tape coil sensor are installed in the vacuum box. An inlet mold is arranged at one end of the vacuum box, an outlet mold is arranged at the other end of the vacuum box, and the inlet mold and the outlet mold are made of flexible nonmetal materials; an electric control box is arranged in the machine base and connected with the concentric wrapping main machine through an airtight aviation plug. The vacuum pump is connected with the vacuum box through vacuum pipes. The electric cabinet controls the concentric wrapping main machine to operate, the vacuum pump is used for discharging air in the vacuum box to form negative pressure vacuum, the inlet mold and the outlet mold are made of flexible nonmetal materials, so that a cable passes through inner holes of the inlet mold and the outlet mold, good sealing performance is guaranteed, air resistance is greatly reduced when a strip rotates at a high speed, and the service life of the strip is prolonged. The stability of the tension of the wrapping tape under the condition of high rotating speed is improved, and the production efficiency of the wrapping process is remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wrapping machines, in particular to a vacuum box wrapping machine. Background Art

[0002] Traditional tape wrapping machines used in cable production are categorized by their structure: tangential, semi-tangential, and concentric. Concentric tape wrapping machines offer advantages over the other two types, including high speed, high production efficiency, and stable tape tension control. However, they suffer from limited tape storage and a restricted cable diameter on the central axis. Therefore, concentric tape wrapping machines are commonly used in the tape wrapping process for communication and optical cables with thinner diameters, requiring high tape tension stability, and requiring high production speeds.

[0003] Although the tape tension control of various concentric taping machines is becoming increasingly precise and stable, as the taping speed increases, the air friction resistance generated by the high-speed rotation of the tape in the air increases rapidly at the square of the speed. This huge air resistance becomes an insurmountable obstacle to further increasing the speed and tension stability.

[0004] Therefore, the problem to be solved by the present invention is to reduce the friction resistance between the strip and the air when rotating at high speed by lowering the air pressure and reducing the air density, so as to further improve the production efficiency of the wrapping process and improve the stability of the wrapping tension.

[0005] Some existing taping machine designs only install the taping head inside the vacuum chamber, while the drive motor is located outside. While this solves the air resistance problem, the drive shaft must pass through the vacuum chamber wall to drive the taping head, necessitating the use of a rotary pneumatic seal. However, the maximum speed of current rotary pneumatic seals is limited; if this speed is exceeded, the seal will quickly burn out due to friction. For example, the maximum speed for a 10mm diameter seal is approximately 1500 rpm, and for a 50mm diameter seal, approximately 300 rpm. This, in turn, limits the taping machine's speed. Utility Model Content

[0006] The technical problem to be solved by the utility model is to overcome the sharp increase in friction resistance between the strip and the air when the strip rotates at high speed in the prior art, and provide a vacuum box wrapping machine.

[0007] The utility model solves the above technical problems through the following technical solutions:

[0008] A vacuum box wrapping machine comprises a machine base, a concentric wrapping main machine and a vacuum box, wherein the vacuum box is mounted on the machine base and the concentric wrapping main machine is mounted in the vacuum box;

[0009] The concentric wrapping machine includes a wrapping main unit tension motor, a wrapping main unit spindle motor, and a wrapping main unit tape reel sensor, all installed within the vacuum chamber. This design eliminates the need for rotating parts to pass through the vacuum chamber wall, thus avoiding high-speed pneumatic sealing issues caused by a high-speed rotating drive shaft passing through the vacuum chamber wall.

[0010] The vacuum box is provided with an inlet mold at one end and an outlet mold at the other end, and the inlet mold and the outlet mold are made of flexible non-metallic material;

[0011] An electric control box is provided in the machine base, and the electric control box is connected to the concentric wrapping main machine through an airtight aviation plug; a vacuum pump is also provided in the machine base, and the vacuum pump is connected to the vacuum box through a vacuum tube.

[0012] The electric control box controls the operation of the concentric taping machine. The vacuum pump is used to exhaust the air in the vacuum box to form a negative pressure vacuum. The inlet and outlet molds are made of flexible non-metallic materials, allowing the cable to pass through their inner holes while ensuring good sealing. When the strip rotates at high speed, the air resistance is greatly reduced, the stability of the tape tension at high speed is improved, and the production efficiency of the taping process is significantly improved.

[0013] Preferably, the vacuum box includes a vacuum box cover, the vacuum box cover is connected to the vacuum box by a hinge, and a rubber sealing strip is provided on the vacuum box cover.

[0014] Preferably, a vacuum pressure gauge is provided on the outside of the vacuum box cover.

[0015] Preferably, the airtight aviation plug is installed on the side wall of the vacuum box.

[0016] The positive effects of this utility model are:

[0017] The electric control box controls the operation of the concentric taping machine. The vacuum pump is used to exhaust the air in the vacuum box to form a negative pressure vacuum. The inlet and outlet molds are made of flexible non-metallic materials, allowing the cable to pass through their inner holes while ensuring good sealing. When the strip rotates at high speed, the air resistance is greatly reduced, the stability of the tape tension at high speed is improved, and the production efficiency of the taping process is significantly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of a vacuum box wrapping machine according to an embodiment of the present application.

[0019] Reference numerals:

[0020] Vacuum pressure gauge 1

[0021] Concentric wrapping machine 2

[0022] Tension motor of wrapping machine 21

[0023] Spindle motor of wrapping machine 22

[0024] Wrapping host belt roll sensor 23

[0025] Inlet mold 31

[0026] Export mold 32

[0027] Airtight aviation plug 4

[0028] Electric control box 5

[0029] Vacuum box cover 6

[0030] Vacuum box 7

[0031] Base 8

[0032] Vacuum tube 9

[0033] Vacuum pump 10 DETAILED DESCRIPTION

[0034] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples.

[0035] like Figure 1 As shown, a vacuum box wrapping machine includes a base 8, a concentric wrapping main unit 2, and a vacuum box 7. The vacuum box 7 is mounted on the base 8, and the concentric wrapping main unit 2 is mounted within the vacuum box 7. The wrapping main unit tension motor 21, the wrapping main unit spindle motor 22, the wrapping main unit tape reel sensor 23, and the concentric wrapping main unit 2 are installed together within the vacuum box. In this embodiment, the concentric wrapping main unit 2 has all the functions of a traditional concentric wrapping machine and is used to complete the cable wrapping process. The side wall of the vacuum box 7 is provided with an inlet mold 31 at one end and an outlet mold 32 at the other end. The inlet mold 31 and the outlet mold 32 are made of flexible non-metallic materials. The inner hole size of the inlet mold 31 and the outlet mold 32 can be designed according to the size of the cable to be produced.

[0036] Two cavities are provided in the machine base 8. The left cavity is provided with an electric control box 5 for controlling the operation of the entire machine. The electric control box 5 is connected to the concentric wrapping main unit 2 through an airtight aviation plug 4; a vacuum pump 10 is provided in the right cavity of the machine base 8. The vacuum pump 10 is connected to the vacuum box 7 through a vacuum tube 9, and is used to discharge the air in the vacuum box 7 to form a negative pressure vacuum.

[0037] The electric control box 5 controls the operation of the concentric wrapping main machine 2. The vacuum pump 10 is used to discharge the air in the vacuum box 7 to form a negative pressure vacuum. The inlet mold 31 and the outlet mold 32 are made of flexible non-metallic materials, which allow the cable to pass through their inner holes while ensuring good sealing. When the strip rotates at high speed, the air resistance is greatly reduced, the stability of the wrapping tension under high speed conditions is improved, and the production efficiency of the wrapping process is significantly improved.

[0038] Preferably, the vacuum box 7 includes a vacuum box cover 6 , which is hingedly connected to the vacuum box 7 and equipped with a handle for easy opening by the operator. A rubber sealing strip is provided on the vacuum box cover 6 . The vacuum box cover 6 covers the opening above the vacuum box 7 . When the machine is running, the vacuum box cover 6 is closed and sealed. When the machine is stopped, the operator can open the vacuum box cover 6 to perform process operations such as tape changing, tape winding, and threading.

[0039] Preferably, a vacuum pressure gauge 1 is provided on the outside of the vacuum box cover 6. In this embodiment, a vacuum pressure gauge 1 is installed outside the vacuum box 7 to display the vacuum pressure value. The vacuum pressure gauge 1 is electronic and can display the vacuum pressure value while providing feedback control over the operation of the vacuum pump 10 to ensure stable air pressure.

[0040] Preferably, the airtight aviation plug 4 is mounted on the side wall of the vacuum box 7. Of course, in this embodiment, several airtight aviation plugs 4 are used to connect the wires of the wrapping machine tension motor 21, the wrapping machine spindle motor 22, and the wrapping machine tape roll sensor 23 through the vacuum box wall to the electrical control box 5. In this embodiment, when the machine is running, the vacuum level in the vacuum box 7 can reach up to 60%. This means that the air resistance of the strip during high-speed rotation is reduced by 60%, significantly improving the stability of the tape tension at high speeds. Traditional concentric wrapping machines generally have a wrapping speed of 1500 to 2000 rpm. The wrapping speed of the present invention can be increased to 2800 rpm, significantly increasing the production efficiency of the wrapping process.

[0041] Although specific embodiments of the present invention have been described above, those skilled in the art will appreciate that these are merely illustrative and that the scope of protection of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, and such changes and modifications are intended to fall within the scope of protection of the present invention.

Claims

1. A vacuum box wrapping machine, comprising a machine base, a concentric wrapping main unit, a wrapping main unit tension motor, a wrapping main unit spindle motor, a wrapping main unit tape roll sensor and a vacuum box, characterized in that: The vacuum box is installed on the machine base, and the concentric wrapping machine, the wrapping machine tension motor, the wrapping machine spindle motor and the wrapping machine tape roll sensor are installed together in the vacuum box; The vacuum box is provided with an inlet mold at one end and an outlet mold at the other end, and the inlet mold and the outlet mold are made of flexible non-metallic material; An electric control box is provided in the machine base, and the electric control box is connected to the concentric wrapping main machine through an airtight aviation plug; a vacuum pump is also provided in the machine base, and the vacuum pump is connected to the vacuum box through a vacuum tube.

2. A vacuum box wrapping machine according to claim 1, characterized in that: The vacuum box comprises a vacuum box cover, which is connected to the vacuum box by a hinge, and a rubber sealing strip is provided on the vacuum box cover.

3. A vacuum box wrapping machine according to claim 2, characterized in that: A vacuum pressure gauge is provided on the outside of the vacuum box cover.

4. A vacuum box wrapping machine according to claim 3, characterized in that: The airtight aviation plug is installed on the side wall of the vacuum box.

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