Anti-reversal device for injection molding extrusion head
A technology of anti-reversal and head glue, which is applied in the field of anti-reversal device for injection molding extrusion head rubber, which can solve the problems of no positioning structure, poor anti-reverse effect, and large resistance in the direction of material flow line, so as to avoid backflow back into the barrel Effect
Inactive Publication Date: 2019-05-10
丹阳市永达模塑有限公司
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Problems solved by technology
[0002] The anti-reverse device of the extrusion head of the existing injection molding equipment is composed of two anti-reverse rings with flat end faces, which has many defects, such as 1. Due to the serious stocking of the end faces, the anti-reverse effect is poor; 2. Because there is no positioning structure , causing problems such as large resistance in the direction of material flow
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[0013] Such as figure 1 , figure 2 As shown, an anti-reversal device for injection molding extrusion head rubber includes a barrel 10, a guide 20, a rubber anti-reversal device 30 and a pusher screw 40; the guide 20 is guided by the main part 22 on the left and the main part on the right The cylindrical support part 21 is composed of; the guide 20 is fixed on the left side of the inside of the barrel 10 through the support part 21; the left end surface of the support part 21 is formed with a cylindrical anti-reverse groove 200; the anti-reverse groove 200 There is a threaded hole-shaped telescopic groove 202 on the left side wall; several extrusion ports 201 are formed on the cylindrical surface at the right end of the guide main part 22; the extrusion ports 201 communicate with the anti-reverse groove 200; the right part of the right part; the left end surface of the pusher screw 40 is formed with a square avoidance groove 400; the right side wall of the avoidance groove 40...
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The invention discloses a sizing material anti-reversing device of an injection molding extrusion head. The sizing material anti-reversing device comprises a material cylinder, a guide part, a sizingmaterial anti-reversing device body and a material pushing threaded rod, wherein the left side wall of an anti-reversing groove is provided with a telescopic groove which is in a thread hole shape; asquare avoiding groove is formed at the left end surface of the material pushing threaded rod; an anti-reversing driving threaded rod is fixedly arranged at the right side wall of the avoiding groove;the left end of the anti-reversing driving threaded rod is pivoted to the left side wall of the telescopic groove; the sizing material anti-reversing device body comprises an anti-reversing ring; theanti-reversing ring is horizontally moved on the anti-reversing driving threaded rod; a square torsion spring support plate is arranged at the right side of the anti-reversing ring; the torsion spring support plate is sheathed on the anti-reversing driving threaded rod; a reset torsion spring is fixedly arranged at the left end surface of the torsion spring support plate; the reset torsion springis sheathed on the anti-reversing driving threaded rod, and the left end of the reset torsion spring is fixedly arranged at the right end surface of the anti-reversing ring. The sizing material anti-reversing device has the advantages that the structure is simple and effective, and the anti-reversing ring is opened to discharge material along with the rotation of the material pushing threaded rod; when the material pushing threaded rod stops rotating, the anti-reversing ring automatically resets and is abutted against the support part, so as to prevent the sizing material from reversing intothe material cylinder.
Description
technical field [0001] The invention relates to the technical field of injection molding equipment, in particular to an anti-reversal device for rubber material of an injection extrusion head. Background technique [0002] The anti-reverse device of the extrusion head of the existing injection molding equipment is composed of two anti-reverse rings with flat end faces, which has many defects, such as 1. Due to the serious stocking of the end faces, the anti-reverse effect is poor; 2. Because there is no positioning structure , causing problems such as large resistance in the direction of material flow. Contents of the invention [0003] The object of the present invention is to provide an anti-reverse device for injection molding extrusion head rubber material with simple structure and good anti-reverse effect. [0004] In order to achieve the above purpose, the present invention provides an anti-reversal device for injection molding extrusion head rubber, including a bar...
Claims
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IPC IPC(8): B29C45/52
Inventor 杨勇
Owner 丹阳市永达模塑有限公司