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A pvc foam board extrusion die

A technology for extrusion dies and foam boards, which is applied in the field of foam board extrusion dies, can solve problems such as waste of raw materials, unbalanced discharge pressure, and increased costs, and achieve improved plasticization, high dispersion, and outlet pressure The effect of equalizing and reducing the amount of loss

Inactive Publication Date: 2016-09-07
DEQING JIUTE BUILDING MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The unreasonable design of the flow channel structure formed by the combination of the current upper die plate and the lower die plate leads to unbalanced discharge pressure during extrusion, and it is necessary to reserve a large margin for finished products, and to cut and trim after extrusion , resulting in a lot of waste of raw materials and increased production costs
Moreover, the size of the flow channel formed by the combination of the upper template and the lower template is fixed, so when in use, one mold corresponds to one type of extruded sheet, so the number of models produced is less , more molds, resulting in increased cost and troublesome management

Method used

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  • A pvc foam board extrusion die
  • A pvc foam board extrusion die
  • A pvc foam board extrusion die

Examples

Experimental program
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Embodiment Construction

[0013] Combine below Figure 1 to Figure 3 Specifically describe the embodiment:

[0014] like figure 1 As shown, a PVC foam board extrusion device includes a frame 1, the frame 1 is provided with a lower fixing plate 2, and the lower fixing plate 2 is provided with a lower template 3 and an opening and closing guide post 4. The upper fixing plate 5 is slidably arranged on the closing guide column 4. The bottom of the upper fixing plate 5 is provided with an upper template 6 that matches the lower template 3. The top of the upper fixing plate 5 is connected with an opening and closing screw rod 7. The opening and closing screw rod 7. Driven by the motor 9, the upper template 6 can be driven to slide on the opening and closing guide post 4 through the gear set 8.

[0015] When in use, start the motor, and the motor drives the gear set to rotate, so that the opening and closing screw drives the upper fixed plate to move down the fixed plate until the upper template and the low...

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PUM

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Abstract

The present invention belongs to the technical field of foaming sheet extrusion mold tools, and particularly relates to a PVC foaming sheet extrusion mold. The present invention discloses a PVC foaming sheet extrusion mold, which comprises an upper template and a lower template, and is characterized in that the combining surface of the upper template and the lower template forms a mold opening and a flow channel, the flow channel is divided into a diversion plasticization segment, a buffer chamber and a polymerization foaming chamber, the buffer chamber presents the shape with the big middle portion and both small ends, a first flow blocking segment is arranged between the buffer chamber and the polymerization foaming chamber, and a second flow blocking segment is arranged between the polymerization foaming chamber and the mold opening. The PVC foaming sheet extrusion mold has characteristics of reasonable flow channel design, raw material saving, and capability of adjusting the size of the flow channel.

Description

technical field [0001] The invention belongs to the technical field of foam board extrusion die tools, and particularly relates to a PVC foam board extrusion die. Background technique [0002] At present, the design of the flow channel structure formed by the combination of the upper die plate and the lower die plate is unreasonable, resulting in unbalanced discharge pressure during extrusion. , resulting in a lot of waste of raw materials and increased production costs. Moreover, the size of the flow channel formed by the combination of the current upper die plate and the lower die plate is fixed, so each die corresponds to one type of extruded sheet when in use, so fewer models are produced. , There are many molds, resulting in increased costs and troublesome management. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to solve the above-mentioned technical problems, and to provide a PVC foam board extrusion die with a reasonable flow channel d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C47/16B29C33/30B29C48/31
CPCB29C33/308B29C48/30B29C48/31
Inventor 俞小林
Owner DEQING JIUTE BUILDING MATERIALS