TWI684512B - Plastic manufactures with imitation wood and forming device thereof - Google Patents

Abstract

A forming device for manufacturing plastics with imitation wood includes an extruding body, a screw, a collar, a honeycomb cover, a fixing annulation and a forming tool. The extruding body has a material head and a material barrel, and an external end of the material barrel is a material discharge outlet. The screw is disposed in the material barrel and has a flat thrusting surface in an end stretching out the material discharge outlet. The collar is fixed in an end of the material barrel. The honeycomb cover is placed in a side of the collar and covers the collar. The fixing annulation is combined outside the collar; the collar and the fixing annulation sandwich the honeycomb cover therebetween. The forming tool is connected in the fixing annulation and has a discharge channel. An inner wall of the discharge channel has plural of chamfers arranged at interval. Thereby a plastic with imitation wood will be produced with better texture and imitation of wood.

Description

Plastic product with imitation wood grain and its forming device

The invention relates to a plastic molding device, in particular to a plastic product with imitation wood grain and its molding device.

The laying of the floor has the effect of beautifying the space and increasing the texture in the construction and decoration. It is an indispensable item in the decoration project; in addition, the texture and simulation of the wood floor-like plastic floor are close to the real wood floor, and the price is more Competitive. Therefore, plastic flooring with imitation wood grain has become the choice for most people when laying flooring.

Furthermore, most of today's wood-like plastic floors are soft plastic floor mats. The laying method is to use glue to bond the plastic floor to the ground; however, compared to traditional wooden floors, wood-like plastic floors are The thickness is obviously insufficient, and the texture of stepping on the plastic floor is not as good as that of the wooden floor. In addition, the existing plastic injection floor is limited in range equipment and cannot form a multi-color imitation wood grain, so it does not meet the needs of use.

To this end, how to provide plastic products with imitation wood grain and its molding device, so that the plastic floor with imitation wood grain can have a better texture and simulation degree, is the research motivation of the inventor.

An object of the present invention is to provide a plastic product with imitation wood grain and a molding device thereof to produce a plastic product with imitation wood grain so that it has better texture and simulation, and is more competitive in the market force.

In order to achieve the above object, the present invention is a molding device for plastic products with imitation wood grain, including an extruder body, a screw, a collar, a honeycomb cover, a fixing ring and a molding die. The extruder body contains a feed head and a barrel connected to the feed head. The outer end of the barrel is a discharge port; the screw is inserted into the barrel and can rotate and axially move in the barrel. One end is a flat push surface; the collar is fixed to one end of the barrel, the collar has a through hole corresponding to the discharge port; the honeycomb cover is provided on one side of the collar and corresponds to the cover through hole, and the honeycomb cover is provided corresponding to the through hole A plurality of through holes with different aperture sizes; the fixing ring is combined with the collar, the fixing ring and the collar clamp the honeycomb cover in between, and the fixing ring has a perforation corresponding to the honeycomb cover; the molding die is connected in the perforation, the molding die has The discharge channel, the inner wall surface of the discharge channel has a plurality of chamfers arranged at intervals.

In order to achieve the above object, the present invention is a plastic product with imitation wood grain, including an extruded body. The extruded body is formed by melting and extruding two or more different types of plastic particles, and the extruding body The surface and the interior of it have multiple textures with different colors and irregular shapes.

Compared with the prior art, the screw of the molding device with plastic products made of wood grain of the present invention is set as a flat pushing surface at the end protruding from the discharge port. In addition, the arrangement of the honeycomb cover is conducive to the formation of different thickness The shape of the material is mixed with the plastic material after melting; moreover, the forming mold further forms a plurality of chamfers of different sizes on the inner wall surface of the discharge channel, and the melting of the plastic material can be formed through the pushing of these chamfers There are many irregular patterns to complete the plastic products with imitation wood grain, and have better texture and simulation degree, increasing the competitiveness in the market.

The detailed description and technical content of the present invention are described below in conjunction with the drawings. However, the drawings are provided for reference and explanation only, and are not intended to limit the present invention.

Please refer to FIG. 1 to FIG. 4, which are respectively a three-dimensional appearance schematic view, a partial three-dimensional exploded view, a partial three-dimensional view, and a partial combined cross-sectional view of a molding device of a plastic-made plastic product with imitation wood grain of the present invention. The molding device 1 of the plastic product with imitation wood grain of the present invention includes an extruder body 10, a screw 20, a set of rings 30, a honeycomb cover 40, a fixing ring 50 and a molding die 60. The screw 20 is installed on the extruder body 10; the honeycomb cover 40 is clamped between the collar 30 and the fixing ring 50 and fixed on one side of the screw 20. The molding die 60 is coupled to an outer side of the fixing ring 50, and the molding material in the extruder body 10 is pushed through the screw 20, passes through the honeycomb cover 40, and enters the molding die 60; The finished plastic products will be extruded from the molding die 60.

The extruder body 10 includes a feed head 11 and a feed barrel 12 connected to the feed head 11, and an outer end of the feed barrel 12 is a discharge port 120. In addition, the screw 20 is inserted into the barrel 12 and can rotate and axially displace in the barrel 12, and the screw 20 has a flat pushing surface 21 at the end protruding from the discharge port 120.

In this embodiment, two or more different types of plastic pellet materials are placed into the feed head 11 and are pushed into the barrel 12 from the feed head 11 by the screw 20. In addition, the barrel 12 is provided with a heating element (not shown) to thermally melt the plastic pellet material entering the barrel 12 to form a molten plastic material.

Furthermore, the collar 30 is fixed to one end of the barrel 12, and the collar 30 has a through hole 31 corresponding to the discharge port 120. In addition, the honeycomb cover 40 is provided on one side of the collar 30 and covers the through hole 31 correspondingly. The honeycomb cover 40 is provided with a plurality of through holes 41 with different aperture sizes corresponding to the through hole 31; preferably The honeycomb cover 40 has an arc-shaped surface 42, and the through holes 41 are arranged on the arc-shaped surface 42, wherein the arrangement of the through-holes 41 facilitates the formation of material shapes with different thicknesses, and the arc-shaped surface 42 The setting of is conducive to mixing plastic materials after melting.

Moreover, the fixing ring 50 is combined with the collar 30, the fixing ring 50 and the collar 30 sandwich the honeycomb cover 40 therebetween, and the fixing ring 50 corresponds to the honeycomb cover 40 and has a perforation 51 .

In an embodiment of the present invention, the molding device 1 of a wood-like plastic product further includes a plurality of locking elements 70. The collar 30 and the fixing ring 50 are respectively provided with a plurality of lock holes 32, 52; in addition, the outer end surface 121 of the barrel 12 is correspondingly provided with a plurality of screw holes 122, and the lock elements 70 are respectively provided with the locks The holes 32 and 52 are combined in the screw holes 122. Accordingly, the collar 30, the honeycomb cover 40 and the fixing ring 50 are fixed on the outer end surface 121 of the barrel 12.

One end of the molding die 60 is connected to the fixing ring 50. In addition, the molding die 60 has a discharge channel 61, and the inner wall surface of the discharge channel 61 has a plurality of chamfers 62 arranged at intervals. The structure of the molding die 60 will be described in more detail later.

In this embodiment, the forming mold 60 includes a front mold 63 and a rear mold 64. The front mold 63 has a cylindrical shape, and one end of the front mold 63 is inserted into the through hole 51 of the fixing ring 50. In addition, the molding die 60 includes a molding port 65 at an outer end of the discharge channel 61.

Furthermore, the chamfer 62 of the forming mold 60 includes a first chamfer 621 and a second chamfer 622 of different sizes. In addition, the discharge channel 61 includes a first channel 611 and a second channel 612 with different apertures; the first channel 611 is located between the first chamfer 621 and the second chamfer 622, the second The channel 612 is located between the second chamfer 622 and the molding port 65. Preferably, the size 621 of the first chamfer 621 is larger than the size of the second chamfer 622, the aperture of the first channel 611 is larger than the aperture of the second channel 612, and the first chamfer 621 is against It is connected to one side of the honeycomb cover 40.

According to this, the molten plastic material flows out of the through hole 41 of the honeycomb cover 40 through the first chamfer 621 and the second chamfer 622 in sequence, and then flows into the discharge channel 61, and finally, Wood-like plastic products will be extruded from the molding port 65 of the molding die 60.

Please refer to FIG. 5 and FIG. 6 for the extrusion schematic diagram of the molding device of the wood-like imitation plastic product of the present invention and the external appearance schematic diagram of the imitation wood-like plastic finished product, respectively. As shown in FIG. 5, in this embodiment, two or more different plastic pellet materials form a melted plastic material, which is pushed into the barrel 12 by the screw 20, and then passes through the honeycomb cover 40. The hole 41 flows out, and is sequentially pushed through the first chamfer 621 and the second chamfer 622 to form a majority of irregular lines by mixing molten plastic materials, and flows into the discharge channel 61 . Finally, it is extruded from the molding port 65 of the molding die 60, and then cooled to complete the plastic finished product 2 with imitation wood grain.

Please refer to FIG. 6, the plastic product 2 with imitation wood grain of the present invention is extruded and formed by the molding device 1 of the plastic product with imitation wood grain, and includes an extrusion body 200. The extrusion body 200 is made of Two or more types of plastic granules are formed by melting and extruding, for example, different types of plastic granules of different colors, or the same color system (such as brown series) but different shades, or different materials. In addition, the surface of the extruded body 200 exhibits a plurality of textures 201 with different colors and irregular shapes, and the textures 201 exhibit irregular shapes with different thicknesses.

According to this, the molding device 1 of the plastic-made plastic product with imitation wood grain of the present invention can produce the plastic product 2 with imitation wood grain, and has better texture and simulation degree, and is more competitive in the market.

The above are only preferred embodiments of the present invention and are not intended to limit the patent scope of the present invention. Other equivalent changes using the patent spirit of the present invention should all fall within the patent scope of the present invention.

1‧‧‧Moulding device for plastic products with imitation wood grain

2‧‧‧ Plastic products with imitation wood grain

200‧‧‧Extrude the body

201‧‧‧grain

10‧‧‧Extrusion body

11‧‧‧ feed head

12‧‧‧barrel

120‧‧‧Discharge port

121‧‧‧Outer end

122‧‧‧Screw hole

20‧‧‧screw

21‧‧‧ flat noodles

30‧‧‧Ring

31‧‧‧Through hole

32‧‧‧Keyhole

40‧‧‧Honeycomb cover

41‧‧‧Through hole

42‧‧‧Curved

50‧‧‧Retaining ring

51‧‧‧Perforation

52‧‧‧Keyhole

60‧‧‧Mould

61‧‧‧Discharge channel

611‧‧‧ First channel

612‧‧‧Second channel

62‧‧‧Chamfer

621‧‧‧First chamfer

622‧‧‧Chamfer

63‧‧‧Front mold

64‧‧‧ Rear mold

65‧‧‧Forming port

70‧‧‧Locking element

FIG. 1 is a schematic perspective view of a molding device of a plastic product with imitation wood grain of the present invention;

2 is a partial three-dimensional exploded view of a molding device of a plastic product with imitation wood grain of the present invention;

3 is a partial perspective view of a molding device of a plastic-made plastic product with imitation wood grain of the present invention;

4 is a partially assembled cross-sectional view of a molding device of a plastic product with imitation wood grain of the present invention;

5 is a schematic view of the extrusion of the molding device of the plastic product with imitation wood grain of the present invention;

6 is a schematic view of the appearance of the plastic product with imitation wood grain of the present invention.

2‧‧‧ Plastic products with imitation wood grain

12‧‧‧barrel

120‧‧‧Discharge port

121‧‧‧Outer end

20‧‧‧screw

21‧‧‧ flat noodles

30‧‧‧Ring

31‧‧‧Through hole

40‧‧‧Honeycomb cover

41‧‧‧Through hole

42‧‧‧Curved

50‧‧‧Retaining ring

51‧‧‧Perforation

60‧‧‧Mould

61‧‧‧Discharge channel

611‧‧‧ First channel

612‧‧‧Second channel

62‧‧‧Chamfer

621‧‧‧First chamfer

622‧‧‧Chamfer

63‧‧‧Front mold

64‧‧‧ Rear mold

65‧‧‧Forming port

Claims (10)

A molding device for plastic products with imitation wood grain, including: an extruder body, including a material head and a barrel connected to the material head, an outer end of the barrel is a discharge port; a screw, It is placed in the barrel and can rotate and axially displace in the barrel. The end of the screw rod that protrudes from the discharge port is a flat pushing surface; a set of rings, fixed at one end of the barrel, the ring The discharge port should have a through hole; a honeycomb cover is provided on one side of the collar and covers the through hole correspondingly. The honeycomb cover is provided with a plurality of through holes with different pore sizes corresponding to the through hole; a fixed The ring is combined with the sleeve ring, the fixing ring system and the sleeve ring sandwich the honeycomb cover therebetween, and the fixing ring has a perforation corresponding to the honeycomb cover; and a molding die connected in the perforation The molding die has a discharge channel, and the inner wall surface of the discharge channel has a plurality of chamfers arranged at intervals. The molding device for plastic products with imitation wood grain as described in claim 1, further comprising a plurality of locking elements, the collar and the fixing ring are respectively provided with a plurality of locking holes, and the outer end surface of the barrel is correspondingly provided There are a plurality of screw holes, and the locking elements respectively penetrate the through holes and are combined in the screw holes. The molding device for plastic products with imitation wood grain as described in claim 1, wherein the honeycomb cover has an arc surface, and the through holes are arranged on the arc surface. The molding device for plastic products with imitation wood grain as described in claim 1, wherein the molding mold includes a front mold and a rear mold, the appearance of the front mold is a cylinder, and one end of the front mold is inserted In the perforation. The molding device for plastic products with imitation wood grain as described in claim 1, wherein the molding die includes a molding port at an outer end of the discharge channel, and the chamfers include a first chamfer of different sizes And a second chamfer, the discharge channel includes a first channel and a second channel with different apertures, the first channel is located between the first chamfer and the second chamfer, the second channel It is located between the second chamfer and the forming opening. The molding device for plastic products with imitation wood grain as described in claim 5, wherein the first chamfer abuts on one side of the honeycomb cover. The molding device for plastic products with imitation wood grain according to claim 5, wherein the size of the first chamfer is larger than the size of the second chamfer, and the aperture of the first channel is larger than the aperture of the second channel. A plastic product with imitation wood grain includes an extruded body, which is composed of two or more different types of plastic particles melted and extruded, and the surface and interior of the extruded body are different Plural textures of colors and irregular shapes. The plastic product with imitation wood grain as described in claim 8, wherein the plastic granules include plastic granules of different colors or different materials. The plastic product with imitation wood grain as described in claim 9, wherein the grains are irregular shapes with different thicknesses.

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