Pipe mold
By adopting spiral feed and hollow pipe structure design in pipe molds, the problems of uneven wall thickness and leakage in existing molds are solved, and the uniformity of product wall thickness and production cost are achieved.
Patent Information
- Application Number
- CN202421256623.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-04
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-06-04
AI Technical Summary
During the forming process, existing pipe molds have uneven wall thickness due to the different centers of the discharge port die and the core die, and the extrusion pressure is high and it is easy to leak materials, affecting product quality and causing waste of materials and energy.
A pipe mold was designed to reduce internal pressure using the spiral feed form, and a hollow tube structure was adopted at the feed end core mold and the discharge end core mold. Through the design of the spiral introduction groove and flow channel, the mold cavity is evenly filled and Control wall thickness.
Through the design of spiral feed and hollow tube structure, the uniformity of product wall thickness is achieved, the product pass rate is improved, the production cost is reduced, and the waste of materials and energy is reduced.
Smart Images
Figure CN222521988U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of molds, in particular to a pipe mold. Background Art
[0002] In the pipe extrusion production line, the mold plays a very critical role in product quality and appearance. Its function is to establish a certain extrusion pressure, cooperate with the extruder, fully plasticize the extruded molten material, and evenly pass through the entire mold section. However, the existing pipe molds on the market generally have problems such as uneven wall thickness caused by the non-concentricity between the outlet mold and the core mold, high extrusion pressure during molding, and easy leakage of the mold, which not only affects product quality, but also causes a lot of waste of materials and energy. Therefore, those skilled in the art provide a pipe mold to solve the problems raised in the above background technology. Summary of the invention
[0003] The purpose of the utility model is to provide a pipe mold 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 feed end core mold, a discharge end core mold, a mold fixing sleeve, a discharge port mold, a feed outer mold and a feed end mold plate; the outer sleeve of the feed end core mold is provided with a feed outer mold, the feed end core mold and the feed outer mold are respectively fixed to the feed end mold plate by bolts, the side wall of the feed outer mold is provided with a feed port, and a spiral introduction groove is provided on the outer wall of the feed end core mold below the feed port in the direction of the discharge end, the discharge end core mold is fixed to the feed end core mold by bolts, the outer sleeve of the discharge end core mold is provided with a discharge port mold, and a mold fixing sleeve is provided between the discharge port mold and the feed outer mold, and the three are connected by bolts; a first flow channel is provided between the feed end core mold and the feed outer mold, and a second flow channel is provided between the discharge end core mold and the discharge port mold; the feed end core mold and the discharge end core mold are hollow tube structures.
[0005] Furthermore, the depth of the spiral inlet groove gradually decreases from deep to shallow along the direction from the feed end to the discharge end.
[0006] Furthermore, the width of the second flow channel is greater than the width of the first flow channel.
[0007] After adopting the above structure, the beneficial effects produced by the utility model are as follows: the pipe mold described in the utility model adopts a spiral feeding form to reduce the internal pressure, and the core mold at the feeding end adopts a hollow tube structure, which reduces its own weight while effectively maintaining the consistency of the heating temperature of the inner and outer molds. The product wall thickness is uniform, the product qualification rate is improved, and the production cost is reduced. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] Figure 1 It is a structural diagram of the utility model.
[0009] Description of reference numerals:
[0010] A feed end core mold 1, a discharge end core mold 2, a mold fixing sleeve 3, a discharge port mold 4, a feed outer mold 5, a feed end mold plate 6, a feed port 7, a spiral introduction groove 8, a first flow channel 9, and a second flow channel 10. DETAILED DESCRIPTION
[0011] 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.
[0012] See Figure 1 As shown, this specific embodiment adopts the following technical scheme: it comprises a feed end core mold 1, a discharge end core mold 2, a mold fixing sleeve 3, a discharge port mold 4, a feed outer mold 5 and a feed end mold plate 6; the outer sleeve of the feed end core mold 1 is provided with a feed outer mold 5, the feed end core mold 1 and the feed outer mold 5 are fixed to the feed end mold plate 6 by bolts respectively, a feed port 7 is provided on the side wall of the feed outer mold 5, a spiral introduction groove 8 is provided on the outer wall of the feed end core mold 1 below the feed port 7 in the direction toward the discharge end, and the depth of the spiral introduction groove 8 gradually decreases from deep to shallow along the direction from the feed end to the discharge end, thereby reducing the internal pressure and solving the leakage problem.
[0013] The discharge end core mold 2 is fixed to the feed end core mold 1 by bolts, the outer sleeve of the discharge end core mold 2 is provided with a discharge port mold 4, a mold fixing sleeve 3 is provided between the discharge port mold 4 and the feed outer mold 5, and the three are connected by bolts; a first flow channel 9 is provided between the feed end core mold 1 and the feed outer mold 5, a second flow channel 10 is provided between the discharge end core mold 2 and the discharge port mold 4, the width of the second flow channel 10 is greater than the width of the first flow channel 9, and the wall thickness can be better controlled. The pipe diameter and wall thickness can be changed by changing the size of the discharge end core mold 2 and the discharge port mold 4.
[0014] The core mold 1 at the feed end is a hollow tube structure, which reduces its own weight while effectively maintaining the consistency of the heating temperature of the inner and outer molds, so that the material is heated evenly and the quality of the product is improved. The core mold 2 at the discharge end is a hollow tube structure, which is beneficial to ensure the concentricity with the discharge port mold 4 and make the wall thickness more uniform.
[0015] The working principle of the utility model is as follows: the fluid is squeezed into the pipe mold by an extruder, enters from the feed port 7 of the feed outer mold 5, and evenly fills the entire mold cavity through the spiral introduction groove 8 on the outer wall of the core mold 1 at the feed end, and the pipe diameter and wall thickness are changed by changing the sizes of the core mold 2 at the discharge end and the discharge port mold 4.
[0016] 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. A pipe mold, characterized in that: It comprises a feed end core mold, a discharge end core mold, a mold fixing sleeve, a discharge port mold, a feed outer mold and a feed end mold plate; the outer sleeve of the feed end core mold is provided with a feed outer mold, the feed end core mold and the feed outer mold are respectively fixed to the feed end mold plate by bolts, the side wall of the feed outer mold is provided with a feed port, and a spiral introduction groove is provided on the outer wall of the feed end core mold below the feed port in the direction of the discharge end, the discharge end core mold is fixed to the feed end core mold by bolts, the outer sleeve of the discharge end core mold is provided with a discharge port mold, a mold fixing sleeve is provided between the discharge port mold and the feed outer mold, and the three are connected by bolts; a first flow channel is provided between the feed end core mold and the feed outer mold, and a second flow channel is provided between the discharge end core mold and the discharge port mold; the feed end core mold and the discharge end core mold are hollow tube structures.
2. A pipe mold according to claim 1, characterized in that: The depth of the spiral introduction groove gradually decreases from deep to shallow along the direction from the feeding end to the discharging end.
3. A pipe mold according to claim 1, characterized in that: The width of the second flow channel is greater than that of the first flow channel.
Citation Information
Cited By
Pipe mold
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