Extrusion die for sandwich structure composite floor

Abstract

The utility model relates to the technical field of composite floor processing, in particular to an extrusion die for a composite floor with a sandwich structure, which comprises a feeding die, a guiding die, a compound die and a drainage cylinder. A through core material flow channel and outer material flow channels symmetrically arranged on the two sides of the core material flow channel are formed in the feeding die, a through material guiding flow channel is formed in the material guiding die, a through composite flow channel is formed in the composite die, a groove is formed in the right end face of the material guiding die, the drainage cylinder is coaxially arranged in the material guiding flow channel, and the outer material flow channels are symmetrically arranged on the two sides of the outer material flow channel. An annular gap exists between the drainage cylinder and the material guiding runner, the right end of the drainage cylinder is connected with the left end of the core material runner, the core material runner is communicated with the composite runner through the drainage cylinder, and the outer material runner is communicated with the composite runner through the groove and the annular gap in sequence; the co-extrusion forming device is simple in structural design, co-extrusion forming of the sandwich structure composite floor is achieved, and the quality and appearance of products can be guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of composite flooring processing technology, and in particular to an extrusion mold for sandwich structure composite flooring. Background Technology

[0002] Sandwich-structured composite flooring consists of an outer top layer, a middle layer, and a bottom outer layer, with the outer top and bottom layers made of the same material. During manufacturing, sandwich-structured composite flooring typically uses adhesive bonding to connect the three layers. This process is complex, results in poor connection stability, and is aesthetically unappealing. Currently, some manufacturers use extrusion molds to extrude each layer before laminating, but the quality and appearance of these products remain unsatisfactory. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide an extrusion mechanism with a simple structural design that can realize the co-extrusion molding of sandwich structure composite flooring.

[0004] The technical solution adopted by this utility model to solve its technical problem is: an extrusion die for a sandwich structure composite floor, including a feeding die, a guiding die, a composite die, and a guide cylinder. The feeding die is connected to the composite die through the guiding die. The feeding die has a through core material flow channel and outer material flow channels symmetrically arranged on both sides of the core material flow channel. The guiding die has a through guiding flow channel. The composite die has a through composite flow channel. A groove is formed on the right end face of the guiding die. The guide cylinder is coaxially arranged in the guiding flow channel. There is an annular gap between the guide cylinder and the guiding flow channel. The right end of the guide cylinder is connected to the left end of the core material flow channel. The core material flow channel is connected to the composite flow channel through the guide cylinder. The outer material flow channel is connected to the composite flow channel in sequence through the groove and the annular gap.

[0005] Furthermore, the groove is inclined near the side wall of the material flow channel, and the width of the groove near the side wall of the material flow channel gradually widens towards the material flow channel.

[0006] Furthermore, the size of the annular gap gradually increases towards the composite mold direction.

[0007] Furthermore, the cross-section of the external material flow channel is L-shaped.

[0008] Furthermore, the right end of the feeding mold is equipped with a core material feeding interface that communicates with the core material flow channel, and one side of the feeding mold is provided with an external material feeding port that communicates with two external material flow channels. The left end of the composite mold is equipped with a discharge interface that communicates with the composite flow channel.

[0009] Furthermore, it also includes a forming mold, which includes a template, lip plates, and adjusting bolts. The template consists of two pieces connected vertically to each other, with a feeding channel and a hanger-shaped channel forming between them. The lip plates consist of two pieces, respectively located on opposite sides of the left ends of the two templates, forming a forming channel between them. The right end of the feeding channel is connected to the discharge port, and the left end of the feeding channel is connected to the forming channel via the hanger-shaped channel. The adjusting bolts are vertically installed on the left end of the template and are used to adjust the distance between the two lip plates.

[0010] Furthermore, the molding die also includes flow-limiting strips and adjusting screws. The flow-limiting strips are respectively disposed on the opposite sides of the two templates. The flow-limiting strips are disposed on the right side of the lip plate. The adjusting screws are vertically installed on the templates for raising and lowering the flow-limiting strips.

[0011] Furthermore, the molding die also includes a thermometer mounted on the template and extending into the hanger-shaped flow channel.

[0012] The beneficial effects of this utility model are:

[0013] (1) This utility model realizes the feeding of the middle layer core material and the upper and lower layer outer materials through the core material flow channel and the outer material flow channel in the feeding mold, and then guides the middle layer core material and the upper and lower layer outer materials into the composite flow channel of the composite mold through the guide mold and the guide cylinder. Since the outer material flow channel is symmetrically arranged on both sides of the core material flow channel, the middle layer core material and the upper and lower layer outer materials form a sandwich structure in the composite flow channel. The structure design is simple, the process is simple, the connection between the three layers is strong, and the quality and appearance of the product can be guaranteed.

[0014] (2) This utility model uses a thermometer to monitor the temperature of the composite material in the molding mold in real time, which makes it easy to adjust the temperature and thus ensures the plasticity of the composite material. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the drainage tube in this utility model;

[0018] Figure 3 This is a schematic diagram of the core material flow channel in this utility model;

[0019] Figure 4 This is a cross-sectional view of the external material inlet in this utility model;

[0020] Figure 5 This is a schematic diagram of the annular gap in this utility model;

[0021] Figure 6 This is a schematic diagram of the groove in this utility model;

[0022] Figure 7 This is a schematic diagram of the composite flow channel in this utility model;

[0023] Figure 8 This is an exploded view of the molding die in this utility model.

[0024] In the diagram: 100, feeding mold; 110, core material flow channel; 120, external material flow channel; 130, external material inlet; 200, priming mold; 210, priming flow channel; 220, groove; 300, compound mold; 310, compound flow channel; 400, priming cylinder; 500, annular gap; 600, core material feeding interface; 700, discharge interface; 800, forming mold; 810, template; 811, feeding flow channel; 812, coat hanger type flow channel; 820, lip plate; 830, adjusting bolt; 840, flow restrictor strip; 850, adjusting screw. Detailed Implementation

[0025] The present invention will now be further described with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0026] Example 1

[0027] like Figures 1-7 As shown, an extrusion die for a sandwich structure composite floor includes a feeding die 100, a guiding die 200, a composite die 300, and a guide cylinder 400. The feeding die 100 is connected to the composite die 300 via the guiding die 200. The feeding die 100 has a through core material flow channel 110 and outer material flow channels 120 symmetrically arranged on both sides of the core material flow channel 110. The guiding die 200 has a through guiding flow channel 210. The composite die 300 has a through composite material flow channel 400. The flow channel 310 has a groove 220 on the right end face of the feeding mold 200. The guiding cylinder 400 is coaxially arranged in the feeding flow channel 210, and there is an annular gap 500 between the guiding cylinder 400 and the feeding flow channel 210. The right end of the guiding cylinder 400 is connected to the left end of the core material flow channel 110. The core material flow channel 110 is connected to the composite flow channel 310 through the guiding cylinder 400. The outer material flow channel 120 is connected to the composite flow channel 310 in sequence through the groove 220 and the annular gap 500. Specifically, the feeding mold 100 is composed of two templates, and the composite mold 300 is composed of two templates. The feeding mold 100, the feeding mold 200, and the composite mold 300 are fastened together by screws for easy installation and disassembly. The cross-section of the outer material flow channel 120 is L-shaped. The size of the annular gap 500 gradually increases towards the composite mold 300.

[0028] The middle core material and the upper and lower outer materials are fed through the core material flow channel 110 and the outer material flow channel 120 in the feeding mold 100. Then, the middle core material and the upper and lower outer materials are guided into the composite flow channel 310 of the composite mold 300 through the guide mold 200 and the guide cylinder 400. Since the outer material flow channel 120 is symmetrically arranged on both sides of the core material flow channel 110, the middle core material and the upper and lower outer materials form a sandwich structure in the composite flow channel 310. The structure design is simple, the processing procedure is simple, the connection between the three layers is strong, and the quality and appearance of the product can be guaranteed.

[0029] like Figure 6 As shown, the groove 220 is inclined near the side wall of the material flow channel 210, and the width of the groove 220 near the side wall of the material flow channel 210 gradually widens towards the material flow channel 210. This design allows the upper and lower layers of material to fully and evenly enter the annular gap 500, thereby ensuring the stability of the composite.

[0030] like Figures 1-4 As shown, the right end of the feeding mold 100 is equipped with a core material feeding interface 600 that communicates with the core material flow channel 110. One side of the feeding mold 100 has an external material feeding port 130 that communicates with two external material flow channels 120. The left end of the composite mold 300 is equipped with a discharge interface 700 that communicates with the composite flow channel 310. Specifically, the external material feeding port 130 is located on the front side of the feeding mold 100.

[0031] During operation, the core material extruder (not shown in the figure) feeds the intermediate layer core material into the core material flow channel 110 through the core material feed port 600. At the same time, the outer material extruder (not shown in the figure) feeds the upper and lower layers of outer material into the two outer material flow channels 120 through the outer material feed port 130. The core material in the core material flow channel 110 enters the composite flow channel 310 through the guide tube 400. Meanwhile, the inner and outer materials in the two outer material flow channels 120 enter the composite flow channel 310 in sequence through the groove 220 and the annular gap 500. The core material and the outer material form a sandwich structure composite material in the composite flow channel 310.

[0032] Example 2

[0033] like Figure 8As shown, this embodiment, based on embodiment 1, further includes a forming mold 800. The forming mold 800 includes a template 810, lip plates 820, and adjusting bolts 830. The template 810 consists of two pieces connected vertically opposite each other, forming a feed channel 811 and a hanger-shaped flow channel 812 between them. The lip plates 820 also consist of two pieces, respectively located on opposite left sides of the two templates 810, forming a forming flow channel between them. The right end of the feed channel 811 connects to the discharge port 700, and the left end of the feed channel 811 connects to the forming flow channel via the hanger-shaped flow channel 812. The adjusting bolts 830 are vertically installed on the left end of the template 810 and are used to adjust the distance between the two lip plates 820. By adjusting the bolts 830 to raise or lower the lip plates 820, the distance between the two lip plates 820 can be adjusted, thus adapting to the processing of composite flooring of different thicknesses.

[0034] like Figure 8 As shown, the molding die 800 also includes a flow-limiting strip 840 and an adjusting screw 850. The flow-limiting strip 840 is respectively disposed on the opposite surfaces of the two templates 810 and is located on the right side of the lip plate 820. The adjusting screw 850 is vertically mounted on the template 810 and is used to raise or lower the flow-limiting strip 840. By raising or lowering the flow-limiting strip 840 with the adjusting screw 850, the uniformity of the composite material can be adjusted.

[0035] like Figure 8 As shown, the molding die 800 also includes a thermometer, which is mounted on the template 810 and extends into the coat hanger-shaped flow channel 812. The thermometer allows for real-time monitoring of the temperature of the composite material within the molding die 800, facilitating temperature adjustment and ensuring the plasticity of the composite material.

[0036] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They should not be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. An extrusion die for a sandwich-structured composite floor, characterized in that: The system includes a feeding mold (100), a feeding mold (200), a composite mold (300), and a flow tube (400). The feeding mold (100) is connected to the composite mold (300) via the feeding mold (200). The feeding mold (100) has a through core material flow channel (110) and external material flow channels (120) symmetrically arranged on both sides of the core material flow channel (110). The feeding mold (200) has a through feeding flow channel (210). The composite mold (300) has a through composite flow channel (310). The feeding mold (200) has a through composite flow channel (310). A groove (220) is provided on the right end face of the 00). The guide cylinder (400) is coaxially arranged in the material flow channel (210). There is an annular gap (500) between the guide cylinder (400) and the material flow channel (210). The right end of the guide cylinder (400) is connected to the left end of the core material flow channel (110). The core material flow channel (110) is connected to the composite flow channel (310) through the guide cylinder (400). The outer material flow channel (120) is connected to the composite flow channel (310) in sequence through the groove (220) and the annular gap (500).

2. The extrusion die for the sandwich structure composite flooring according to claim 1, characterized in that: The groove (220) is inclined near the side wall of the feed channel (210), and the width of the groove (220) near the side wall of the feed channel (210) gradually widens towards the feed channel (210).

3. The extrusion die for the sandwich structure composite flooring according to claim 1, characterized in that: The size of the annular gap (500) gradually increases towards the composite mold (300).

4. The extrusion die for the sandwich structure composite flooring according to claim 1, characterized in that: The cross-section of the external material flow channel (120) is L-shaped.

5. The extrusion die for the sandwich structure composite flooring according to claim 1, characterized in that: The right end of the feeding mold (100) is equipped with a core material feeding interface (600) that communicates with the core material flow channel (110). The side of the feeding mold (100) is provided with an external material feeding port (130) that communicates with two external material flow channels (120). The left end of the composite mold (300) is equipped with a discharge interface (700) that communicates with the composite flow channel (310).

6. The extrusion die for the sandwich structure composite flooring according to claim 5, characterized in that: It also includes a forming mold (800), which includes a template (810), a lip plate (820), and an adjusting bolt (830). The template (810) consists of two pieces, which are connected vertically to each other. A feeding channel (811) and a hanger-shaped channel (812) are formed between the two templates (810). The lip plate (820) consists of two pieces, which are respectively set on the opposite side of the left end of the two templates (810). A forming channel is formed between the two lip plates (820). The right end of the feeding channel (811) is connected to the discharge port (700). The left end of the feeding channel (811) is connected to the forming channel through the hanger-shaped channel (812). The adjusting bolt (830) is vertically installed on the left end of the template (810) to adjust the distance between the two lip plates (820).

7. The extrusion die for the sandwich structure composite flooring according to claim 6, characterized in that: The forming mold (800) also includes a flow-limiting strip (840) and an adjusting screw (850). The flow-limiting strip (840) is respectively set on the opposite sides of the two templates (810). The flow-limiting strip (840) is set on the right side of the lip plate (820). The adjusting screw (850) is vertically installed on the template (810) for raising and lowering the flow-limiting strip (840).

8. The extrusion die for the sandwich structure composite flooring according to claim 6, characterized in that: The molding die (800) also includes a thermometer mounted on the template (810) and extending into the hanger-shaped runner (812).

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