Foamed cotton needling heat sealing machine

Abstract

The utility model discloses a foaming cotton needling heat sealing machine which comprises an inner-layer material conveying roller set and an outer-layer material conveying roller set which are symmetrically arranged. The inner-layer material conveying roller set and the outer-layer material conveying roller set are consistent in structure and each comprise a material roller, a first guide roller, a needle roller, a second guide roller and a heat sealing roller. A hot air pipe is arranged below the left and right heat sealing rollers; a finished product roller is further included; the finished product roller is arranged on the outer side of the heat sealing roller; and the heat sealing roller, the needle roller and the finished product roller are connected with an output shaft of the driving motor. The utility model has the advantages that the inner layer and the outer layer are pricked and scraped by the needle roller to form a wool top, and the wool top is melted by hot air sprayed by the hot air pipe, so that the inner layer and the outer layer are hot-melted into a whole. According to the present invention, the influence of the glyceryl monostearate layer on the surface layer on the hot melting is overcome, the certain holes are formed after the hot melting, and the material has good elasticity, and is especially suitable for the packaging material such as the steel coil packaging material with the high vibration reduction requirement.

Description

Technical Field

[0001] This utility model relates to the field of machinery, specifically a heat sealing machine. Background Technology

[0002] In the production of foam, the heat sealing of multiple layers of foam is frequently involved. Current technology involves melting the opposing surfaces before heat sealing. However, because glyceryl monostearate is mixed into the foam during production as an anti-dripping agent, anti-fogging agent, lubricant, and antistatic agent, a layer rich in glyceryl monostearate forms on the surface of the PE foam after crystallization. When two types of PE foam need to be heat-sealed, the glyceryl monostearate on the surface hinders the heat fusion bonding. To ensure a good heat fusion effect, current technology uses methods such as increasing the heat fusion temperature and heat sealing pressure. The result is a thicker fused layer after heat fusion, which affects the product's elasticity. Utility Model Content

[0003] To solve the above-mentioned technical problems, the applicant has adopted a heat-sealing layer with a roughened structure. This involves pre-roughening the opposing surfaces of the inner and outer layers with needles to form roughened strips extending outwards from the inside of the inner and outer layers. Then, by heating these roughened strips, the inner and outer layers are thermally fused together. To achieve the above technical effects, the purpose of this utility model is to provide a foamed cotton needle-punched heat-sealing machine, including symmetrically arranged inner and outer layer material conveying roller groups. The inner and outer layer material conveying roller groups have identical structures, each including a material roller, a first guide roller, a needle roller, a second guide roller, and a heat-sealing roller. Hot air pipes are installed below the left and right heat-sealing rollers. A finished product roller is also included, positioned outside the heat-sealing rollers. The heat-sealing roller, needle roller, and finished product roller are all connected to the output shaft of a drive motor.

[0004] The surface of the needle roller is provided with barbs, which are arranged in a fan shape outward from the circular axis of the needle roller.

[0005] The length of the needle is 0.5-0.7 times the thickness of the foam.

[0006] The hot air pipe has multiple sets of nozzles, which are arranged in a straight line along the interface of the heat sealing roller.

[0007] The rotating shaft of the second guide roller has a radial adjustment structure.

[0008] The radial adjustment structure refers to the following: the rotation shaft of the second guide roller is fixed on the slider, and the slider is fixed in the slide rail by a lead screw.

[0009] The advantages of this invention are: by scraping the inner and outer layers of material with a needle roller, a sliver is formed, and the hot air from the hot air pipe melts the sliver, thus fusing the inner and outer layers together. This not only overcomes the influence of the surface glyceryl monostearate layer on the heat-melting process, but also creates certain pores after heat melting (no melting area is formed at the root of the sliver or between adjacent slivers), resulting in good material elasticity. It is especially suitable for packaging materials with high vibration damping requirements, such as steel coil packaging materials. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model;

[0011] Figure 2 This is a schematic diagram of the needle roller structure. Detailed Implementation

[0012] The present invention will now be described in detail with reference to the accompanying drawings. As shown in the figures, the present invention includes symmetrically arranged inner and outer layer material conveying roller groups. The inner and outer layer material conveying roller groups have the same structure, each including a material roller 1, a first guide roller 2, a needle roller 3, a second guide roller 4, and a heat sealing roller 5. Hot air pipes 7 are arranged below the left and right heat sealing rollers. The present invention also includes a finished product roller 6, which is located outside the heat sealing rollers. The heat sealing roller, needle roller, and finished product roller are all connected to the output shaft of a drive motor. The drive motor is connected to a control center through a motor controller, thereby controlling the speed of each motor, etc.

[0013] The surface of the needle roller 3 is provided with needles 31, which are arranged in a fan shape outward from the circular axis of the needle roller.

[0014] Preferably, the length of the needle is 0.5-0.7 times the thickness of the foam.

[0015] The hot air pipe 6 has multiple sets of nozzles, which are arranged in a straight line along the interface of the heat sealing roller.

[0016] The rotating shaft of the second guide roller has a radial adjustment structure.

[0017] The radial adjustment structure refers to a structure in which the rotation shaft of the second guide roller is fixed to the slider, and the slider is fixed within the slide rail by a lead screw. This is known technology and will not be elaborated further by the applicant. The purpose of this adjustment structure is to adjust the depth of needle punching.

Claims

1. A foam cotton needle-punching heat sealing machine, characterized in that: It includes symmetrically arranged inner and outer material conveying roller groups; the inner and outer material conveying roller groups have the same structure, each including a material roller, a first guide roller, a needle roller, a second guide roller, and a heat sealing roller; hot air pipes are arranged below the left and right heat sealing rollers; it also includes a finished product roller; the finished product roller is located outside the heat sealing roller; the heat sealing roller, needle roller, and finished product roller are all connected to the output shaft of the drive motor.

2. The foamed cotton needle-punching heat sealing machine according to claim 1, characterized in that: The surface of the needle roller is provided with barbed needles, which are arranged in a fan shape outward from the circular axis of the needle roller.

3. The foamed cotton needle-punching heat sealing machine according to claim 2, characterized in that: The length of the needle is 0.5-0.7 times the thickness of the foam.

4. The foamed cotton needle-punching heat sealing machine according to claim 1, characterized in that: The hot air pipe has multiple sets of nozzles, which are arranged in a straight line along the interface of the heat sealing roller.

5. The foam cotton needle-punching heat sealing machine according to claim 1, characterized in that: The rotating shaft of the second guide roller has a radial adjustment structure.

6. The foam cotton needle-punching heat sealing machine according to claim 5, characterized in that: The radial adjustment structure refers to the following: the rotation shaft of the second guide roller is fixed on the slider, and the slider is fixed in the slide rail by a lead screw.

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