Integrated machine barrel structure of extruder
By designing an integrated barrel structure of an extruder including a spiral groove and a water-cooled groove, the problems of plastic particles accumulation and screw breakage caused by gaps in the barrel feed section in the prior art are solved, and forced feeding and The cooling effect extends the service life of the screw.
Patent Information
- Application Number
- CN202420201146.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-29
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-01-29
AI Technical Summary
The gap between the barrel feed section of the existing screw extruder and the grooved feed bushing leads to the accumulation of plastic particles, and the friction of the screw increases, which easily leads to the screw breakage.
An integrated barrel structure of an extruder is designed, including the barrel body and transition flange, a feeding seat is installed on the feed port, the inner wall extends to the spiral groove, and the outer wall extends to the water-cooling groove, avoiding the existence of additional installation bushings and gaps. .
Forced feeding is achieved by opening a spiral groove directly in the barrel, avoiding the accumulation of plastic particles, reducing screw friction, extending the service life of the screw, and cooling through the water-cooled groove to avoid the impact of friction and heat generation on the material.
Smart Images
Figure CN222431551U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of extruders, in particular to an integrated barrel structure of an extruder. Background Art
[0002] The screw extruder relies on the pressure and shear force generated by the rotation of the screw to fully plasticize and evenly mix the materials and form them through the die. Figure 3 and Figure 4 As shown, the existing screw extruder barrel is equipped with a slotted feed bushing 4 in the feed section 3 to force the feed. However, the gap between the barrel feed section 3 and the slotted feed bushing 4 increases with the working time during the production process, causing plastic particles to accumulate, and the friction between the screw and the feed section increases, which eventually leads to the problem of screw breaking. Therefore, those skilled in the art provide an integrated barrel structure of an extruder to solve the problems raised in the above background technology. Summary of the invention
[0003] The purpose of the utility model is to provide an integrated barrel structure of an extruder to solve the problems raised in the above background technology.
[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: it comprises a barrel body and a transition flange; a transition flange is welded at one end of the barrel body, a feed port is arranged on the side wall of the end, a feed seat is installed on the feed port, an inverted cone-shaped feed port is arranged on the feed seat, a water cooling groove is arranged on the outer wall of the barrel body at the position of the feed port, and a sealing sleeve is welded to the outside of the water cooling groove; a spiral groove is arranged on the inner wall of the barrel body at the position of the feed port, and a spiral groove is arranged on the other end of the barrel body.
[0005] Furthermore, the rotation direction of the spiral groove is consistent with the rotation direction of the screw.
[0006] Furthermore, the feeding seat is welded on the countersunk hole at the feeding port.
[0007] After adopting the above structure, the beneficial effects produced by the utility model are as follows: the one-piece barrel structure of the extruder described in the utility model does not need to install a bushing in the feeding section, so there is no gap, plastic particles will not accumulate, and the screw will not be damaged due to increased friction. The spiral groove can play a role of forced feeding; the water cooling groove can play a cooling effect, thereby avoiding the influence of frictional heat on the material. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] Figure 1 It is a structural diagram of the utility model;
[0009] Figure 2 yes Figure 1 A magnified view of part A in FIG.
[0010] Figure 3 It is the structural diagram of the existing barrel of the utility model;
[0011] Figure 4 yes Figure 3 Enlarged view of part B in .
[0012] Description of reference numerals:
[0013] The barrel body 1, the feed port 11, the feed seat 12, the feed port 13, the water cooling groove 14, the sealing sleeve 15, the spiral groove 16, the transition flange 2, the feed section 3, and the slotted feed bushing 4. DETAILED DESCRIPTION
[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0015] See Figure 1 —— Figure 2 As shown, this specific embodiment adopts the following technical scheme: it comprises a barrel body 1 and a transition flange 2; one end of the barrel body 1 is welded with a transition flange 2, a feed port 11 is arranged on the side wall of the end, a feed seat 12 is welded on the countersunk hole at the feed port 11, an inverted cone-shaped feed port 13 is arranged on the feed seat 12, and a water cooling groove 14 is extended to the other end of the barrel body 1 on the outer wall of the barrel body 1 at the position of the feed port 11, and cooling water is introduced into the water cooling groove 14 to cool the inside of the barrel. The material is cooled to prevent the plastic particles from being melted in the feeding section due to frictional heat generation, which affects the feeding. A sealing sleeve 15 is welded to the outside of the water-cooling groove 14, and the water-cooling groove 14 and the sealing sleeve 15 avoid the feeding seat 12. On the inner wall of the barrel body 1 where the feed port 11 is located, a spiral groove 16 is extended to the other end of the barrel body 1, and the rotation direction of the spiral groove 16 is consistent with the rotation direction of the screw. When the screw rotates, the spiral groove 16 guides the material, which can play a role in forced feeding.
[0016] The working principle of the utility model is as follows: a spiral groove 16 is directly opened inside the feed section of the barrel body 1 to play a role of forced feeding, a water cooling groove 14 is opened outside the feed section to play a cooling role, and a feeding seat 12 is welded at the feed port 11, so that the barrel as a whole is an integrated structure, which can avoid the accumulation of plastic particles and prevent the screw from being damaged by increased friction.
[0017] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. An integrated barrel structure of an extruder, characterized in that: It comprises a barrel body and a transition flange; a transition flange is welded at one end of the barrel body, a feed port is arranged on the side wall of the end, a feed seat is installed on the feed port, an inverted cone-shaped feed port is arranged on the feed seat, a water cooling groove is arranged on the outer wall of the barrel body at the position of the feed port, and a sealing sleeve is welded on the outside of the water cooling groove; a spiral groove is arranged on the inner wall of the barrel body at the position of the feed port, and a spiral groove is arranged on the other end of the barrel body.
2. The one-piece barrel structure of an extruder according to claim 1, characterized in that: The rotation direction of the spiral groove is consistent with the rotation direction of the screw.
3. The one-piece barrel structure of an extruder according to claim 1, characterized in that: The feeding seat is welded on the countersunk hole at the feeding port.