Novel co-extrusion floor mold

Abstract

The utility model relates to the field of die manufacturing, in particular to a novel co-extrusion floor die which comprises a die sleeve, a cavity is arranged on the surface of the die sleeve, a die core is mounted in the cavity, an extrusion port is communicated with the top of the cavity, the diameter of the extrusion port is larger than that of an opening of the cavity, and the joint of the extrusion port and the cavity is arranged at an arc angle. The bottom of the feeding port communicates with a flowing channel, the two sides of the bottom of the flowing channel communicate with discharging ports correspondingly, the other ends of the discharging ports communicate with the cavity, the flowing channel communicates with the discharging ports and is arranged in a herringbone shape, and an installation assembly is installed on the inner wall of the cavity and comprises a supporting rod, and one end of the supporting rod is fixedly connected with the inner wall of the cavity. According to the novel co-extrusion floor mold, the density and quality of a product are improved, meanwhile, later cleaning is facilitated, and the use cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a mold manufacturing technical field, concretely is a novel co -extrusion floor mold. BACKGROUND

[0002] Extrusion mold is a kind of mold for producing plastic profile products with continuous shape, also be called extrusion mold, extrusion molding machine head or die head. Its working principle is to pass through the mold by the molten plastic material by applying pressure, to produce various plastic products, and co -extrusion floor mold is used to extrude co -extrusion floor, currently co -extrusion floor mold usually cavity is straight cavity setting therefore discharge speed is faster, and usually in the extrusion process, front end is extruded by extruder therefore molten density is a little stronger, and the end density is not enough due to smaller pressure, thereby the quality of extruded product is influenced, the practicability of co -extrusion floor mold is greatly reduced, when cleaning mold, it is inconvenient to disassemble and clean the mold core, greatly reduce the use convenience. SUMMARY

[0003] The utility model mainly aims at solving the above-mentioned existing technical problem, provide a novel co -extrusion floor mold.

[0004] The specific scheme of the utility model is: a novel co -extrusion floor mold, including mould cover, the mould cover surface is equipped with cavity, the cavity is installed with mould core in, the cavity top is connected with extrusion mouth, the extrusion mouth diameter is greater than the cavity opening diameter, and the extrusion mouth and cavity junction are set as arc angle, the mould core top is equipped with feed inlet, the feed inlet bottom is connected with flow channel, the flow channel bottom both sides are connected with discharge port, and the discharge port other end is connected with the cavity, the flow channel and discharge port are connected and are set as herringbone, the cavity inner wall is installed with mounting assembly, the mounting assembly includes support rod, one end of the support rod is fixedly connected with the cavity inner wall, the support rod other end is fixedly installed with nut, the mould core surface is equipped with threaded ring, the threaded ring is connected with the nut thread, so that the mould core and cavity can be detachably connected, the mould core is cylindrical and the top of the mould core is arc surface setting, the mould core is matched with the nut.

[0005] According to the above technical scheme, the flow of the molten material in the cavity is improved by the feed inlet and the discharge port, thereby improving the density and quality of the product. The amount of molten material is increased by the extrusion port diameter being greater than the cavity opening diameter. The flow of the molten material is improved by the chamfer and arc surface, making the molten material more uniform. The mold core can be disassembled by the mounting assembly, improving the convenience of cleaning in the later stage. The mold core can also be replaced after long-term wear.

[0006] Further, the screw cap top is provided with a tapered sleeve, and the tapered sleeve is connected with the screw cap at the larger-diameter end, the mold core bottom penetrates through the tapered sleeve and is in sliding connection with the tapered sleeve, and the threaded ring top is provided with an inclined surface, and the threaded ring top inclined surface is in contact with the tapered sleeve top end, so that the molten material flows better.

[0007] According to the technical scheme, the surface inclined surface of the tapered sleeve can improve the flowability of the molten material in the middle part of the cavity, and the flow path of the material in the cavity is changed, so that the bubbles and voids in the molten material are extruded and filled, and the density of the end molten material is improved.

[0008] Further, the mold core and the mounting assembly are each provided with six groups, at least two support rods are connected to the surface of each screw cap, the mounting assembly is provided with a middle part of the cavity, and the threaded ring is arranged in the middle part of the mold core.

[0009] According to the technical scheme, at least two support rods are used to improve the stability of the screw cap and avoid the instability of the mounting assembly caused by the strong pressure of the extruder.

[0010] Further, the top end of the flow channel is provided with an inner quadrangle.

[0011] According to the technical scheme, the inner quadrangle is provided, and the inner quadrangle wrench can be used for installation, so that the installation and disassembly of the mold core are facilitated.

[0012] Further, the support rod is in a cylindrical shape.

[0013] According to the technical scheme, the cylindrical shape does not affect the flow of the internal molten material.

[0014] Compared with the prior art, the utility model has the following advantages: 1. Through the extrusion port, the feeding port and the herringbone-shaped discharge port, the flow of the molten material in the cavity is improved, the molten material fills more channels of the cavity, and the density of the product is improved; 2. Through the arc angle, the arc surface, the tapered sleeve and the inclined surface, the flowability of the molten material can be effectively improved, and the flow path of the molten material can be changed, so that the bubbles and voids in the molten material are extruded and filled, and the density of the molten material is improved; 3. The mounting assembly can disassemble and replace the mold core, facilitates cleaning after use, and can be replaced when worn to a certain extent, thereby reducing the use cost; the novel co-extrusion floor mold improves the density and quality of the product, facilitates post-cleaning, and reduces the use cost. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a plane schematic view of the utility model;

[0016] Figure 2 It is Figure 1 A-A sectional view of the utility model;

[0017] Figure 3 is Figure 2 a structure enlarged view of C in

[0018] Figure 4 is Figure 2 a B-B sectional view of

[0019] Figure 5 is Figure 4 a structure enlarged view of D in

[0020] In the figure: 1, die sleeve; 2, die core; 3, cavity; 4, extrusion port; 5, arc angle; 6, feed port; 7, flow channel; 8, discharge port; 9, support rod; 10, nut; 11, threaded ring; 12, arc surface; 13, conical sleeve; 14, inclined surface; 15, inner quadrangle. DETAILED DESCRIPTION

[0021] Referring to Figures 1-5 , the embodiment is a novel co-extrusion floor mold, the die sleeve 1 is used for fixed installation and protection of the die core 2, the die sleeve 1 is provided with a cavity 3 on the surface, the cavity 3 is used for forming a cavity of the co-extrusion floor, the die core 2 is installed inside the cavity 3, the cavity 3 is provided with an extrusion port 4 at the top, the diameter of the extrusion port 4 is greater than the opening diameter of the cavity 3, the amount of melt entering the cavity 3 is improved, and the connection between the extrusion port 4 and the cavity 3 is provided with an arc angle 5, the arc angle 5 improves the flowability of the melt, the die core 2 is provided with a feed port 6 in the hollow top, the feed port 6 is communicated with a flow channel 7 at the bottom, the flow channel 7 is communicated with discharge ports 8 at both sides of the bottom, the other end of the discharge port 8 is communicated with the cavity 3, the flow channel 7 and the discharge port 8 are provided in a herringbone shape, so that multiple positions enter the cavity 3, the cavity 3 is installed with an installation assembly, the installation assembly includes a support rod 9, one end of the support rod 9 is fixedly connected with the inner wall of the cavity 3, the other end of the support rod 9 is fixedly installed with a nut 10, the die core 2 is fixedly connected with a threaded ring 11 on the surface, the threaded ring 11 is threadedly connected with the nut 10, so that the die core 2 is detachably connected with the cavity 3, the die core 2 is in a cylindrical shape and the top of the die core 2 is provided with an arc surface 12 to improve the flow of the melt, the die core 2 is matched with the nut 10. The die core 2 can pass through the nut 10, so that the middle threaded ring 11 can be threadedly connected with the nut 10.

[0022] Further, the nut 10 is integrally formed with a conical sleeve 13 at the top, the large end of the conical sleeve 13 is connected with the nut 10, the die core 2 penetrates through the conical sleeve 13 at the bottom and is slidably connected with the conical sleeve 13, the top of the threaded ring 11 is provided with an inclined surface 14, the top inclined surface 14 of the threaded ring 11 is in contact with the top of the conical sleeve 13, so that the inclined surface 14 and the surface of the conical sleeve 13 are in the same inclined surface, so that the melt flows better.

[0023] Further, the mold core 2 and the mounting assembly are each provided with six groups, and each screw cap 10 is connected with at least two support rods 9 on the surface, thereby improving the stability of the screw cap 10. The mounting assembly is arranged in the middle of the cavity 3, and the threaded ring 11 is arranged in the middle of the mold core 2, so that the installation is more stable.

[0024] Further, the top end of the flow channel 7 is provided with an inner quadrangle 15, so that the user can install the wrench through the inner quadrangle 15.

[0025] Further, the support rod 9 is in a cylindrical shape, so that the cylindrical flow is stronger, and the molten material flow is not affected.

[0026] The working principle of the embodiment is as follows: when the mold core 2 is installed, the mold core 2 is first inserted through the conical sleeve 13, and then the mold core 2 is rotated to threadedly connect the surface threaded ring 11 with the screw cap 10. Meanwhile, the inner quadrangle 15 can be rotated and installed. When the inclined surface 14 at the top of the threaded ring 11 contacts the top end of the conical sleeve 13 and forms the same inclined surface, the installation is completed. When disassembled, the reverse rotation can disassemble it. When used, the molten material first enters the cavity 3 through the extrusion port 4, and part of the molten material enters the flow channel 7 through the feeding port 6. Finally, the molten material is discharged into the cavity 3 through the two side discharge ports 8. The multiple positions for feeding improve the density of the molten material. When the molten material flows to the middle, the conical sleeve 13 and the inclined surface 14 change the diameter of the cavity 3, thereby changing the flow path of the molten material, so that the internal bubbles and voids of the molten material are extruded and filled, thereby improving the density of the molten material flowing to the end, and improving the use convenience and product quality of the novel co-extrusion floor mold.

Claims

1. A novel co-extrusion flooring mold, comprising a mold sleeve, wherein a cavity is provided on the surface of the mold sleeve, and a mold core is installed inside the cavity, characterized in that: The top of the cavity is connected to an extrusion port, the diameter of which is larger than the opening diameter of the cavity, and the connection between the extrusion port and the cavity is set at an arc angle. The top of the mold core is provided with a feed port, the bottom of which is connected to a flow channel. Both sides of the bottom of the flow channel are connected to discharge ports, and the other end of the discharge port is connected to the cavity. The flow channel and discharge port are connected in a herringbone shape. An installation assembly is installed on the inner wall of the cavity. The installation assembly includes a support rod. One end of the support rod is fixedly connected to the inner wall of the cavity, and the other end of the support rod is fixedly installed with a nut. The surface of the mold core is provided with a threaded ring, which is threadedly connected to the nut, so that the mold core and the cavity are detachably connected. The mold core is cylindrical and the top of the mold core is set with an arc surface. The mold core matches the nut.

2. The novel co-extrusion flooring mold according to claim 1, characterized in that: The nut is provided with a tapered sleeve at the top, and the larger diameter end of the tapered sleeve is connected to the nut. The bottom of the mold core passes through the tapered sleeve and is slidably connected to the tapered sleeve. The top of the threaded ring is set with an inclined surface, and the inclined surface of the top of the threaded ring contacts the top of the tapered sleeve, so that the molten material can flow better.

3. A novel co-extrusion flooring mold according to claim 1 or 2, characterized in that: The mold core and the mounting assembly are each provided with six sets, and each nut surface is connected to at least two support rods. The mounting assembly is provided with a cavity center, and the threaded ring is provided in the center of the mold core.

4. A novel co-extrusion flooring mold according to claim 1 or 2, characterized in that: The top of the flow channel is set at the inner four corners.

5. A novel co-extrusion flooring mold according to claim 1 or 2, characterized in that: The support rod is cylindrical.

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