Composite unit of hot melting compound machine

Abstract

The utility model relates to a compounding unit of a hot melting compounding machine, which comprises a heating roller, a leading-in roller, a first rubber roller and a second rubber roller, the leading-in roller, the first rubber roller and the second rubber roller are sequentially arranged along the rotating direction of the heating roller, a first laminating position is formed between the first rubber roller and the heating roller, and a second laminating position is formed between the second rubber roller and the heating roller. The first laminating position and the second laminating position are respectively positioned on the circumference of the heating roller, the central angle between the first laminating position and the second laminating position is 200-230 degrees, and the diameter of the heating roller is 100-150cm. According to the utility model, the heating area and the heating time of the low-temperature hot-melt film are greatly increased, the low-temperature hot-melt film is enabled to obtain a better hot-melt bonding effect through sufficient and stable heating, the interlayer firmness is more stable and smooth, and the hemming problem is obviously improved.

Description

Technical Field

[0001] The utility model relates to the technical field of composite equipment, in particular to a composite unit of a hot-melt composite machine. Background Art

[0002] Lamination is a process of stacking sheet materials layer by layer and bonding them into a whole by pressurization, including adhesive method, hot melt method, calendaring method, etc. The hot melt method is to melt the thermoplastic resin through a melt roller press and press it into a film, such as TPU hot melt film, and then directly stack the film between the upper and lower composite sheet materials, pressurize and heat to hot melt and penetrate the composite sheet materials, and obtain adhesion after cooling and solidification.

[0003] The prior art generally uses a heated steel wheel and a pressing wheel, which are set to roll against each other, and the hot melt film is heated to be in a hot melt state and bonded to the composite sheet material, and then cooled to obtain a finished product, such as the Chinese patent document (CN202021895U). The diameters of the heated steel wheel and the pressing wheel are generally 30-60cm, and the contact area and contact time between the hot melt film and the heated steel wheel are insufficient, making it difficult for the hot melt film to be fully and stably heated, thereby affecting the effect of hot melt bonding and easily causing curling. Utility Model Content

[0004] The utility model aims to provide a hot melt laminating machine compound unit, which can greatly increase the heating area and heating time of the low-temperature hot melt film. After sufficient and stable heating, the low-temperature hot melt film obtains a better hot melt bonding effect, the interlayer firmness is more stable and flat, and the curling problem is significantly improved.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] The hot melt laminating machine laminating unit comprises a heating roller, an introduction roller, a first rubber roller and a second rubber roller, wherein the introduction roller, the first rubber roller and the second rubber roller are arranged in sequence along the rotation direction of the heating roller, a first lamination position is formed between the first rubber roller and the heating roller, a second lamination position is formed between the second rubber roller and the heating roller, and the first lamination position and the second lamination position are respectively located on the circumference of the heating roller and the central angle between the first lamination position and the second lamination position is 200° to 230°, and the diameter of the heating roller is 100 cm to 150 cm.

[0007] Preferably, the heating roller is electrically heated or thermally heated with oil.

[0008] Preferably, the first rubber roller and the second rubber roller are both rubber rollers.

[0009] Preferably, the diameters of the first rubber roller and the second rubber roller are both 30 cm to 60 cm.

[0010] Preferably, the input sides of the introduction roller and the first rubber roller are also provided with spreader rollers respectively.

[0011] Preferably, the tangent line between the heating roller and the lead-in roller forms a lead-in position on the heating roller, and the central angle between the lead-in position and the first lamination position is 50° to 90°.

[0012] Preferably, the spacing between the first rubber roller and the second rubber roller and the heating roller is adjustable, and the adjustment direction is in the radial direction of the heating roller.

[0013] Preferably, adjustment mechanisms are respectively provided at both ends of the first rubber roller, and the adjustment mechanisms include an adjustment seat, an adjustment screw and a slider. The two ends of the first rubber roller are respectively rotatably mounted on the corresponding side sliders. The adjustment seat is provided with a slide rail parallel to the radial direction of the heating roller, and the slider is slidably fitted on the slide rail. The adjustment screw is threadedly connected to the side of the adjustment seat away from the heating roller, and one end of the adjustment screw is rotatably set on the slider.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The composite unit of the utility model includes a heating roller, an introduction roller, a first rubber roller and a second rubber roller, so that an introduction position, a first lamination position and a second lamination position are formed in sequence on the outer circumference of the heating roller in the direction of rotation. The composite material 1 is transmitted backwards along the heating roller via the introduction position, the composite material 2 enters the first lamination position via the first rubber roller and is bonded to the composite material 1. The composite material 1 is preheated and softened against the heating roller before entering the first lamination position, and the composite material B can smoothly enter and bond to the composite material A, which has a good effect on ensuring the bonding flatness between the composite materials A and the composite materials B and inhibiting local wrinkles. Moreover, the diameter of the heating roller of the utility model is 100cm to 150cm, which greatly increases the heating area and heating time of the low-temperature hot melt film. After sufficient and stable heating, the low-temperature hot melt film obtains a better hot melt bonding effect, the interlayer firmness is more stable and flat, and the curling problem is significantly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the compounding unit of the hot-melt compounding machine of the utility model.

[0017] Figure 2 It is a structural schematic diagram of the regulating mechanism of the utility model.

[0018] Markings in the figure: 10, heating roller; 20, introduction roller; 30, first rubber roller; 40, second rubber roller; 51, adjustment seat; 52, slider; 53, adjustment screw; 60, spreading roller. DETAILED DESCRIPTION

[0019] In order to make the above features and advantages of the present invention more obvious and understandable, embodiments are given below with reference to the accompanying drawings for detailed description as follows.

[0020] like Figure 1-Figure 2 As shown, this embodiment provides a hot melt laminating machine laminating unit, including a heating roller 10, an introduction roller 20, a first rubber roller 30 and a second rubber roller 40, wherein the first rubber roller 30 and the second rubber roller 40 are both rubber rollers with a diameter of 30 cm to 60 cm, and the heating roller 10 is electrically heated or thermally conductive oil heated, with a diameter of 100 cm to 150 cm.

[0021] The introduction roller 20, the first rubber roller 30 and the second rubber roller 40 are arranged in sequence along the rotation direction of the heating roller 10, the tangent line between the heating roller 10 and the introduction roller 20 forms an introduction position on the heating roller 10, the first rubber roller 30 and the heating roller 10 form a first lamination position, and the second rubber roller 40 and the heating roller 10 form a second lamination position.

[0022] The center angle between the introduction position and the first lamination position is 50°~90°, the first lamination position and the second lamination position are respectively located on the circumference of the heating roller 10 and the center angle between the first lamination position and the second lamination position is 200°~230°. The composite working process of this embodiment is as follows: the composite material 1 enters the introduction position of the heating roller 10 from the introduction roller 20 and is conveyed backward along the heating roller 10 as the heating roller 10 rotates, the composite material 2 enters the first lamination position of the heating roller 10 from the first rubber roller 30 and is attached to the surface of the composite material 1, the first rubber roller 30 presses the composite material 1 and the composite material 2, and the pressure is adjusted and set according to the needs. Since the composite material 1 contains a hot melt film, it is preheated and softened by being attached to the heating roller 10 before entering the first lamination position, which helps the composite material 2 to be smoothly attached and smooth and wrinkle-free during the process of being conveyed to the second lamination position together with the heating roller 10, and the second rubber roller 40 at the second lamination position tightly attaches the composite material 1 and the composite material 2.

[0023] The spacing between the first rubber roller 30 and the second rubber roller 40 and the heating roller 10 is adjustable, and the adjustment direction is in the radial direction of the heating roller 10. Specifically, the first rubber roller 30 is provided with an adjustment mechanism at both ends, and the adjustment mechanism includes an adjustment seat 51, an adjustment screw 53 and a slider 52. The two ends of the first rubber roller 30 are rotatably mounted on the corresponding side sliders 52 through bearings. The adjustment seat 51 is provided with a slide rail parallel to the radial direction of the heating roller 10. The slider 52 is slidably fitted on the slide rail. The adjustment screw 53 is threadedly connected to the side of the adjustment seat 51 away from the heating roller 10, and one end of the adjustment screw 53 is rotatably set on the slider 52 through a bearing. Similarly, the two ends of the second rubber roller 40 are also provided with an adjustment mechanism of the same structure. The operation of the adjustment screw 53 can drive the slider 52 and the first rubber roller 30 or the second rubber roller 40 thereon to approach the heating roller 10 or to move away from the heating roller 10. When approaching, the pressing force on the composite raw material is increased, and when moving away, the pressing force on the composite raw material is reduced.

[0024] In addition, in order to allow the composite raw material to enter the heating roller 10 in an expanded and smooth manner, the input sides of the introduction roller 20 and the first rubber roller 30 are respectively provided with a spreading roller 60 .

[0025] The above shows and describes the basic principles, main features and advantages of the invention. Those skilled in the art should understand that the invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the invention. Without departing from the spirit and scope of the invention, the invention may have various changes and improvements, which shall fall within the scope of the invention to be protected. The scope of protection of the invention shall be defined by the attached claims and their equivalents.

Claims

1. A hot melt laminating machine laminating unit, characterized in that: The composite unit includes a heating roller, an introduction roller, a first rubber roller and a second rubber roller, wherein the introduction roller, the first rubber roller and the second rubber roller are arranged in sequence along the rotation direction of the heating roller, a first lamination position is formed between the first rubber roller and the heating roller, a second lamination position is formed between the second rubber roller and the heating roller, and the first lamination position and the second lamination position are respectively located on the circumference of the heating roller and the central angle between the first lamination position and the second lamination position is 200° to 230°, and the diameter of the heating roller is 100 cm to 150 cm.

2. The hot melt laminating machine laminating unit according to claim 1, characterized in that: The heating roller is electrically heated or thermally conductive oil heated.

3. The hot melt laminating machine laminating unit according to claim 1, characterized in that: The first rubber roller and the second rubber roller are both rubber rollers.

4. The hot melt laminating machine laminating unit according to claim 1, characterized in that: The diameters of the first rubber roller and the second rubber roller are both 30 cm to 60 cm.

5. The hot melt laminating machine laminating unit according to claim 1, characterized in that: The input sides of the introduction roller and the first rubber roller are also provided with spreader rollers respectively.

6. The hot melt laminating machine laminating unit according to claim 1, characterized in that: The tangent line between the heating roller and the lead-in roller forms a lead-in position on the heating roller, and the central angle between the lead-in position and the first lamination position is 50° to 90°.

7. The hot melt laminating machine laminating unit according to claim 1, characterized in that: The spacings between the first rubber roller and the second rubber roller and the heating roller are adjustable, and the adjustment direction is in the radial direction of the heating roller.

8. The hot melt laminating machine laminating unit according to claim 7, characterized in that: The two ends of the first rubber roller are respectively provided with adjustment mechanisms, and the adjustment mechanisms include an adjustment seat, an adjustment screw and a slider. The two ends of the first rubber roller are respectively rotatably mounted on the corresponding side sliders. The adjustment seat is provided with a slide rail parallel to the radial direction of the heating roller. The slider is slidably fitted on the slide rail. The adjustment screw is threadedly connected to the side of the adjustment seat away from the heating roller, and one end of the adjustment screw is rotatably set on the slider.

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