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Combined die of steel plastic compound strip

A technology of steel-plastic composite belt and combined mold, which is applied in the field of molds for manufacturing plastic-steel winding pipe strips, can solve the problems of inability to adjust the plastic pressure and flow of the flow channel, unreasonable structure of the flow channel, and high defective rate of strip products.

Active Publication Date: 2013-09-04
华瀚管道系统科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a steel-plastic composite strip composite mold, which overcomes the unreasonable structure of the flow channel of the existing steel-plastic composite strip composite mold, and the inability to adjust the pressure and flow of plastic in the flow channel, resulting in strip products Defects with high defective rate

Method used

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  • Combined die of steel plastic compound strip
  • Combined die of steel plastic compound strip
  • Combined die of steel plastic compound strip

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] Such as Figure 2 to Figure 10 As shown, the steel-plastic composite strip composite mold of the present invention includes an upper cover plate 21, a core plate, a flow channel plate 24, a transition plate, a discharge plate and a pressure flow regulating device, and the core plate, the transition plate and the discharge plate are along the mold. The feeding directions of the steel strips 80 are sequentially connected.

[0061] The upper cover 21 includes a molten plastic injection port 211 connected to the molten plastic feed pipe 50 .

[0062] The core plate includes an upper core plate 22 and a lower core plate 23 which are connected up and down. The upper core plate 22 and the upper cover plate 21 are connected up and down.

[0063]The core plate includes core plate steel strip guide holes 100 arranged at the same level in parallel intervals, a runner lower slope 200 inclined downward along the mold steel strip feeding direction, and an inner side that is nested w...

Embodiment 2

[0110] Such as Figure 12 As shown, the structure and transformation of this embodiment and Embodiment 1 are basically the same, the difference is that the transition plate is canceled, and the discharge plate is directly connected to the discharge end of the core plate. At this time, the discharge plate steel strip guide groove 300 Set on the upper discharge plate 26, the steel belt and molten plastic are compounded only once. One end of the auxiliary runner channel 242 arranged on both sides of the runner plate 24 communicates with the runner groove 221 , and the other end communicates with the cavity of the overlapping edge arranged on the discharge plate. The communication channel between the clearance space and the main channel connected to the steel belt guide groove of the discharge plate is arranged on the flow channel plate 24, see Figure 12 24a in.

[0111] Correspondingly, in the device for adjusting the thickness of the master tape, an installation groove for th...

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Abstract

The invention discloses a combined die of a steel plastic compound strip. The combined die comprises an upper cover plate, a core plate, a runner plate, a discharging plate, a secondary runner, a pressure flow adjusting device, a molten plastic filling opening connected with a molten plastic feeding pipe, a horizontal through steel strip guide hole, a strip plastic wall cavity and a lapping edge cavity arranged on the discharging plate, a primary runner for communicating the molten plastic filling opening with the strip plastic wall cavity and the lapping edge cavity, wherein the steel strip guide hole passes through the primary runner, secondary runners are arranged at two sides of the primary runner and are used for communicating the molten plastic filling opening and the lapping edge cavity; and the pressure flow adjusting device comprises a limiting element and a guide adjusting mechanism I, the limiting element is horizontally arranged at a connecting end of the primary runner and the molten plastic filling opening along the primary runner, and the guide adjusting mechanism I is in fit with the limiting element to drive the limiting element to move along a cross section direction of the limiting element and to be positioned. The combined die can guarantee the sufficient lapping edge material and complete structure formation; and the plastic flow and pressure in the runnercan be adjusted according to different product demands, and the product quality is guaranteed.

Description

technical field [0001] The invention relates to a mold for manufacturing plastic-steel winding pipe strips. Background technique [0002] Plastic-steel spiral wound pipe is a new type of pipe that replaces traditional cement pipes, steel pipes, etc., and has been widely used in urban underground pipe networks. To manufacture plastic-steel spiral-wound pipes, it is first necessary to compound reinforced steel strips and plastics into winding pipe strips, and then use special spiral winding equipment to wind and connect the strips to make plastic-steel spirally wound pipe products. [0003] Such as figure 1 As shown, the molten plastic material and the steel belt are composited into a cross-sectional structure through a special mold, including a plastic wall 11, a reinforcing rib 12 erected on one side of the plastic wall 11, and overlapping structures 13 and 14 arranged on both sides of the plastic wall 11 The winding pipe strip 10. [0004] Existing steel-plastic composit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C47/12B29C47/92B29C48/30B29C48/92
CPCB29C48/92
Inventor 郑能欢
Owner 华瀚管道系统科技有限公司