TWI605930B - TPU film affixed to the plastic sheet of the device - Google Patents

Description

Device for coating TPU film on plastic sheet

The present invention relates to an apparatus for molding a composite plastic article, and more particularly to a device for coating a TPU film on a plastic sheet.

Existing cabinets, such as suitcases, locomotive compartments, etc., are mostly made of plastic sheets (such as ABS), and the plastic sheets have certain toughness and are resistant to acid, alkali and salt corrosion. The ability is also strong, and it can tolerate the dissolution of organic solvents to a certain extent. The surface of the plastic sheet is smooth and easy to dye and electroplating, so it can also be used for household appliances, toys and other daily necessities.

The existing method and equipment for molding a composite plastic product (patent No. CN101920588) is to use a pusher to push out a plastic body, and use a pair of roller press wheels to drag the plastic body toward a direction of extrusion, so that The plastic film is merged between one of the roller pressing wheels and the plastic body, and the roller pressing wheel can simultaneously press the plastic body and the plastic film.

The roller is composed of a power wheel and a driven wheel, and the plastic film is fed between the driven wheel and the plastic body because the plastic film has different tension from the plastic body, or when the slave When the surface of the moving wheel is slippery due to oil, It may cause slippage with the plastic film, which may cause a speed difference between the plastic film and the plastic body, and cause wrinkles of the plastic film, and the defect rate is high.

Accordingly, it is an object of the present invention to provide a device for attaching a TPU film to a plastic sheet material which can ensure the quality of the composite plastic product and has a simple structure.

Therefore, the present invention attaches a TPU film to a plastic sheet device, and the plastic sheet is extruded in a direction of extrusion using a pressing device, and the TPU film is applied to the plastic sheet to fix the TPU film to the plastic sheet, the TPU A roll of film is disposed on one side of the extrusion device, and the device for coating the TPU film on the plastic plate comprises a roll unit and a feed unit. The rolling unit is disposed on the side of the extrusion device along the extrusion direction, and includes a rolling power source disposed on one side of the plastic sheet, and a roller driven by the rolling power source and disposed on one side of the plastic sheet a rolling power wheel and a rolling driven wheel disposed on the other side of the plastic sheet, the rolling power source driving the rotation of the rolling power wheel and cooperating with the driving of the rolling driven wheel, so that the extrusion setting can be pushed out The plastic sheet is pulled toward the extrusion direction, the feeding unit is adjacent to the rolling unit, and is located between the roll of the TPU mold and the rolling unit, and includes a feeding force disposed on one side of the TPU film. a source, a feed power wheel driven by the feed power source and disposed on one side of the TPU film, and a feed follower wheel disposed on the other side of the TPU film, the feed power source driving the rotation of the feed power wheel and cooperating with the Feeding the follower of the driven wheel, the TPU film can be fed toward the rolling unit, and the TPU film is merged with the plastic sheet extruded from the extrusion setting Rolling is performed by the rolling unit, and the TPU film is integrated with the plastic sheet, and the feed unit feeds the TPU film at a speed equal to the speed at which the rolling unit rolls the plastic sheet.

The effect of the present invention is that the feeding speed of the TPU film can be made by the arrangement of the feeding unit and the speed at which the feeding unit feeds the TPU film and the speed at which the rolling unit rolls the plastic sheet. The plastic sheet has no speed difference in moving speed, and can ensure the bonding quality of the composite plastic product.

1‧‧‧TPU film

101‧‧‧ surface layer

102‧‧‧Printing layer

103‧‧‧Volume

2‧‧‧Plastic sheet

100‧‧‧Exit equipment

X‧‧‧Exit direction

10‧‧‧Rolling unit

11‧‧‧Rolling power source

12‧‧‧Rolling power wheel

13‧‧‧Rolling driven wheel

20‧‧‧ Feeding unit

21‧‧‧ Feeding power source

22‧‧‧ Feeding power wheel

23‧‧‧ Feeding wheel

Other features and effects of the present invention will be apparent from the following description of the drawings. FIG. 1 is a plan view showing a first embodiment of the apparatus for attaching a TPU film to a plastic sheet according to the present invention; 2 is a schematic cross-sectional view of a composite plastic product of the first embodiment; FIG. 3 is a plan view showing a second embodiment of the apparatus for attaching a TPU film to a plastic sheet according to the present invention; and FIG. 4 is the second embodiment. A composite plastic article is schematically illustrated.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same reference numerals.

Referring to FIG. 1 and FIG. 2, a first embodiment of the apparatus for attaching the TPU film 1 to the plastic sheet 2 of the present invention can be made of PC and ABS composite materials, and PC, ABS, PP, PE, etc. In one case, the plastic sheet 2 is extruded by an extrusion device 100 toward an extrusion direction X. The device for coating the TPU film 1 on the plastic sheet 2 can fix the TPU film 1 to the plastic sheet 2, and the TPU film 1 The roll 103 is axially disposed on the side of the extruding device 100. The device for attaching the TPU film 1 to the plastic sheet 2 comprises a roll unit 10 and a feed unit 20.

The rolling unit 10 is disposed on the side of the extrusion device 100 along the extrusion direction X, and includes a rolling power source 11 disposed on one side of the plastic sheet 2, and is driven by the rolling power source 11 and disposed thereon. a rolling power wheel 12 on one side of the plastic sheet 2 and a rolling driven wheel 13 disposed on the other side of the plastic sheet 2, the rolling power source 11 driving the rotation of the rolling power wheel 12 and cooperating with the rolling The follow-up of the moving wheel 13 causes the plastic sheet 2 ejected from the squeezing setting 100 to be dragged toward the ejecting direction X.

The feeding unit 20 is adjacent to the rolling unit 10 and located between the roll 103 of the TPU die 1 and the rolling unit 10, and includes a feeding power source 21, one disposed on one side of the TPU film 1. a feed power wheel 22 driven by the feed power source 21 and disposed on one side of the TPU film 1 and a feed follower wheel 23 disposed on the other side of the TPU film 1, the feed power source 21 being driven by a servo motor The feed power wheel 22 generates rotation and cooperates with the feed follower 23 to feed the TPU film 1 toward the roll unit 10, and the TPU film 1 is ejected from the extrusion setting 100 and has not yet fully cured. The plastic sheets 2 are merged and then rolled through the rolling unit 10, the TPU film 1 is pressed together with the plastic sheet 2 which has not been completely cured, and the feed unit 20 feeds the TPU film 1 at a speed and the rolling The unit 10 rolls the plastic sheets 2 at the same speed.

Therefore, by the cooperation of the rolling unit 10 and the feeding unit 20, the feeding speed of the TPU film 1 can be made equal to the conveying speed of the plastic sheet 2, and the TPU film 1 is attached to the plastic sheet 2 It does not wrinkle, can ensure the quality of composite plastic products, and can reduce the defect rate.

The composite plastic product which has been consolidated into one body is hot-pressed and shaped into a shape, and can be made into a suitcase case, a storage case, a home appliance casing, a toy, etc. (not shown) having a predetermined shape.

As shown in FIG. 3 and FIG. 4, the second embodiment of the apparatus for attaching the TPU film 1 to the plastic sheet 2 of the present invention also includes a rolling unit 10 and a feeding unit 20, and is compatible with the first embodiment. The difference is that the TPU film 1 includes a surface layer 101 and a printing layer 102 pre-printed on the surface layer 101, when the TPU film 1 is fed toward the rolling unit 10 by the feeding unit 20, and the TPU film 1 is made When the plastic sheet 2 is attached, the printed layer 102 can be interposed between the surface layer 101 and the plastic sheet 2.

Therefore, by forming the surface layer 101 for protection on the outer side of the printed layer 102, the printed layer 102 can be prevented from being scratched by friction and prevented from falling off, and the cooperation of the rolling unit 10 and the feeding unit 20 can also be utilized. Making the TPU film 1 attached to the plastic When the material sheet 2 is placed, wrinkles are not generated, the quality of the composite plastic product can be ensured, and the defective rate can be reduced, and the pattern of the printed layer 102 is not deformed, and the pattern can be ensured.

In summary, the device of the present invention for coating a TPU film on a plastic sheet has a simple overall structure and can indeed achieve the object of the present invention.

However, the above is only the embodiment of the present invention, and the scope of the invention is not limited thereto, and all the equivalent equivalent changes and modifications according to the scope of the patent application and the patent specification of the present invention are still The scope of the invention is covered.

1‧‧‧TPU film

103‧‧‧Volume

2‧‧‧Plastic sheet

100‧‧‧Exit equipment

X‧‧‧Exit direction

10‧‧‧Rolling unit

11‧‧‧Rolling power source

12‧‧‧Rolling power wheel

13‧‧‧Rolling driven wheel

20‧‧‧ Feeding unit

21‧‧‧ Feeding power source

22‧‧‧ Feeding power wheel

23‧‧‧ Feeding wheel

Claims (2)

The utility model relates to a device for coating a TPU film on a plastic plate, which is extruded in a direction of extrusion by using an extrusion device, and the device for coating the TPU film on the plastic plate can fix a TPU film on the plastic plate, and the TPU film is The material reel is disposed on one side of the extrusion device, and the device for coating the TPU film on the plastic plate comprises: a rolling unit disposed on one side of the extrusion device along the extrusion direction, and including a side disposed on the plastic plate a rolling power source, a rolling power wheel driven by the rolling power source and disposed on one side of the plastic sheet, and a rolling driven wheel disposed on the other side of the plastic sheet, the rolling power source driving the roller The rotation of the rolling power wheel and the follow-up of the rolling driven wheel enable the plastic sheet disposed from the extrusion to be pulled toward the extrusion direction; and a feeding unit that approaches the rolling unit and is located in the TPU mold. Between the roll and the rolling unit, and comprising a feed power source disposed on one side of the TPU film, a feed power wheel driven by the feed power source and disposed on one side of the TPU film, and a TPU disposed on the TPU Feeding pulley on the other side of the membrane The feed power source drives the rotation of the feed power wheel and cooperates with the follower of the feed follower wheel to feed the TPU film toward the roll unit, and merges the TPU film with the plastic sheet extruded from the extrusion setting. The rolling unit is rolled, the TPU film is integrated with the plastic sheet, and the feeding unit feeds the TPU film at a speed equal to the speed at which the rolling unit rolls the plastic sheet. The apparatus for attaching a TPU film to a plastic sheet according to claim 1, wherein the TPU film comprises a surface layer and a printing layer pre-printed on the surface layer, the printing layer being interposed between the surface layer and the plastic sheet. .