Connecting channel of plastic co-extrusion die
By designing a connecting channel for plastic co-extrusion molds and adopting infeed interface components and retaining ring structures, the problems of complex connecting channels and material leakage in existing technologies have been solved, enabling fast and safe conveying of plastic melt and improving production efficiency.
Patent Information
- Application Number
- CN202423115565.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-12-17
AI Technical Summary
Currently, the connection channel structure of plastic co-extrusion molds is complex, installation is cumbersome, and defects such as material leakage are prone to occur, affecting production efficiency.
A plastic co-extrusion die connection channel was designed, which adopts a feed interface component, a retaining ring and an interface connection flange structure, and is connected by fasteners, simplifying the connection with the plastic extruder and ensuring the stable delivery of plastic melt.
It achieves a simple structure and convenient assembly and disassembly, improves production efficiency, ensures the safe delivery of plastic melt, avoids material leakage and blockage, and enhances the efficiency of mechanized processing.
Smart Images
Figure CN223644215U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of plastic profile extrusion, particularly to a plastic co-extrusion die connecting channel. BACKGROUND
[0002] The performance of single plastic extrusion molding product is difficult to meet the application requirement, and the plastic product adopting two or more than two plastic co-extrusion molding can be endowed with more performance, such as pressure bearing, barrier, antibacterial performance, etc.
[0003] To realize the co-extrusion molding process production, the co-extrusion die is needed, two or more plastic extruders convey the molten plastic through the connecting channel, and then the two or more molten plastics are conveyed to the co-extrusion die according to the process requirement, and then the two or more molten plastics flow along the independent flow channel, converge at the die outlet close to the co-extrusion die, and co-extrude the die, and after the process procedures such as cooling and shaping, the co-extrusion molding plastic product is formed.
[0004] At present, the connecting channel matched with the plastic co-extrusion die is complex in structure, difficult to install, and prone to leakage and other adverse phenomena. UTILITY MODEL CONTENTS
[0005] The utility model discloses to the deficiency of prior art, the utility model provides a plastic co-extrusion die connecting channel, simple structure, convenient to dismount, can fast safe delivery plastic melt to co-extrusion die realizes composite co-extrusion, mechanization processing, and high efficiency brings great convenience for production and use.
[0006] In order to solve the above technical problems, the utility model adopts the technical scheme of a plastic co-extrusion die connecting channel, which comprises: a material inlet interface piece, the material inlet interface piece has a channel for plastic melt flow, one end of the material inlet interface piece is connected with a co-extrusion die, a limiting clamping groove is formed on the circumferential end face of the other end of the material inlet interface piece, a clamping ring is arranged in the limiting clamping groove, an interface connecting flange is arranged on the outer sleeve of the clamping ring, the interface connecting flange and the clamping ring are connected through a fastener, two groups of through grooves are symmetrically formed along the central axis direction of the interface connecting flange, an internal thread matched with the fastener is arranged on the inner wall of the through groove, and the interface connecting flange is connected with the front end flange of a plastic extruder.
[0007] In a preferred embodiment of the utility model, a circumferential positioning groove is arranged on the circumferential outer wall of the clamping ring, and after the interface connecting flange and the clamping ring are fixed, the front end part of the fastener is clamped into the circumferential positioning groove.
[0008] In a preferred embodiment of the utility model, the fastener is a fastening bolt.
[0009] In a preferred embodiment of the present application, the snap ring is formed by two groups of nearly semicircular rings spliced together.
[0010] In a preferred embodiment of the present application, the end surface of the interface connecting flange is provided with a plurality of mounting holes at equal intervals around the center of the flange, and the interface connecting flange is connected with the front end flange of the plastic extruder through bolts penetrating the mounting holes.
[0011] In a preferred embodiment of the present application, one end of the material inlet interface piece is welded or threaded connected with the co-extrusion die.
[0012] The present application has the advantages of simple structure, convenient disassembly and assembly, fast and safe delivery of plastic melt to the co-extrusion die for composite co-extrusion and mechanized processing, high efficiency, and great convenience for production and use. BRIEF DESCRIPTION OF DRAWINGS
[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor, and the drawings include:
[0014] Fig. 1 It is a structural schematic view of the plastic co-extrusion die connecting channel of the present application.
[0015] Fig. 2 It is a disassembled schematic view of the components in the present application. DETAILED DESCRIPTION
[0016] The technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only some of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.
[0017] Please refer to Figs. 1-2The utility model discloses a plastic co -extrusion die connecting channel, which comprises: a feeding interface piece 1, the feeding interface piece has a channel 11 for plastic melt flow, one end of the feeding interface piece is connected with the co -extrusion die, a limiting clamping groove 12 is formed on the circumferential end face of the other end of the feeding interface piece, a clamping ring 2 is arranged in the limiting clamping groove, an interface connecting flange 3 is arranged on the clamping ring, the circumferential opposite position of the interface connecting flange and the clamping ring is fixedly connected through a fastener 4, wherein the fastener is a fastening bolt, two groups of through grooves 5 are symmetrically formed along the central axis direction of the interface connecting flange, an inner thread matched with the fastener is arranged on the inner wall of the through groove, a circumferential positioning groove 6 is arranged on the circumferential outer wall of the clamping ring, after the interface connecting flange and the clamping ring are fixedly installed, the fastener is screwed with the through groove, and the front end of the fastener is clamped into the circumferential positioning groove, so that the interface connecting flange and the clamping ring can be further limited and positioned.
[0018] Specifically, the interface connecting flange is connected with the front end flange of the plastic extruder, a plurality of mounting holes 31 are arranged on the end face of the interface connecting flange at equal intervals around the center of the flange, the interface connecting flange is connected with the front end flange of the plastic extruder by penetrating the mounting holes and being fastened through nuts, and the interface connecting flange is very convenient to disassemble and assemble, and the production versatility is better.
[0019] Specifically, the clamping ring is formed by splicing two groups of semicircular rings, the thickness of the semicircular ring-shaped clamping ring is matched with the width of the limiting clamping groove, the feeding interface piece can be tightly connected with the limiting clamping groove during installation, one end of the feeding interface piece is welded or threadedly connected with the co -extrusion die, plastic melt can be conveniently introduced, the plastic melt can quickly flow into the channel of the utility model feeding interface piece, and the utility model can effectively prevent accidents such as material leakage and material blockage.
[0020] The utility model has the advantages of simple structure, convenient disassembly and assembly, fast and safe plastic melt conveying to the co -extrusion die to realize composite co -extrusion and mechanical processing, high efficiency and great convenience for production and use.
[0021] The above-mentioned only is the embodiment of the utility model, and does not limit the patent range of the utility model, and the equivalent structure or equivalent process conversion made by using the utility model specification content, or direct or indirect application in other related technical fields, are all included in the patent protection range of the utility model.
Claims
1. A connecting channel for a plastic co-extrusion die, characterized in that, include: The feeding interface component has a channel for the flow of molten plastic. One end of the feeding interface component is connected to a co-extrusion die. A limiting groove is formed on the circumferential end face of the other end of the feeding interface component. A retaining ring is provided in the limiting groove. An interface connection flange is provided on the outer sleeve of the retaining ring. The circumferential relative position of the interface connection flange and the retaining ring is fixedly connected by fasteners. Two sets of through slots are symmetrically formed along the central axis of the interface connection flange. The inner wall of the through slots is provided with internal threads that mate with the fasteners. The interface connection flange is connected to the front flange of the plastic extruder.
2. The plastic co-extrusion die connection channel according to claim 1, characterized in that, The retaining ring has a circumferential positioning groove on its outer circumferential wall. After the interface connecting flange is fixed to the retaining ring, the front end of the fastener is inserted into the circumferential positioning groove.
3. The plastic co-extrusion die connecting channel according to claim 2, characterized in that, The fastener is a fastening bolt.
4. The plastic co-extrusion die connection channel according to claim 1, characterized in that, The retaining ring is composed of two sets of nearly semi-circular rings joined together.
5. A plastic co-extrusion die connection channel according to claim 1, characterized in that, The interface connecting flange has several mounting holes evenly spaced around the center of the flange on its end face. The interface connecting flange is connected to the front flange of the plastic extruder by bolts passing through the mounting holes.
6. The plastic co-extrusion die connecting channel according to claim 1, characterized in that, One end of the feed interface is welded or threaded to the co-extrusion die.