A galvanized pipe forming die

Abstract

The patent discloses a galvanized pipe manufacturing mold, which comprises a mold base, a pipe manufacturing lower mold is assembled at the top end of the mold base, a pipe manufacturing upper mold is assembled at the top end of the pipe manufacturing lower mold, a galvanized pipe mold shell is assembled between the pipe manufacturing lower mold and the pipe manufacturing upper mold, a demolding head is inserted into the end of the galvanized pipe mold shell, a cleaning ring is arranged on the outer wall of the demolding head, barbs are arranged on the outer wall of the cleaning ring, electric push rods are installed on the two sides of the top end of the mold base, a bearing plate is installed on the driving end of the electric push rod, and the bearing plate is installed on the outer wall of the demolding head.

Description

Technical Field

[0001] This patent relates to the field of pipe manufacturing molds, specifically a galvanized pipe mold. Background Technology

[0002] Galvanized steel pipes are divided into cold-dip galvanized steel pipes and hot-dip galvanized steel pipes. Hot-dip galvanized steel pipes are widely used in manufacturing industries such as construction, machinery, coal mining, chemical industry, power, railway vehicles, automobile industry, highways, bridges, containers, sports facilities, agricultural machinery, petroleum machinery, mining machinery, and greenhouse construction. Galvanized steel pipes are welded steel pipes with a hot-dip or electro-galvanized layer on their surface. Galvanizing increases the corrosion resistance of the steel pipe and extends its service life. Galvanized pipes have a wide range of uses. In addition to being used as pipelines for transporting general low-pressure fluids such as water, gas, and oil, they are also used as oil well pipes in the petroleum industry, especially in offshore oil fields. Oil pipelines; pipes for oil heaters, condensers, and coal tar washing oil exchangers in chemical and coking equipment; pipe piles for trestle bridges; pipes for support frames in mine tunnels; molds; various molds and tools used in industrial production to obtain desired products through injection molding, blow molding, extrusion, die casting, forging, smelting, stamping, etc. In short, molds are tools used to make shaped objects. These tools are composed of various parts, and different molds are composed of different parts. They mainly achieve the processing of the shape of the object by changing the physical state of the material being molded, and are known as the "mother of industry". After the steel pipe galvanizing process, some material remains inside the mold. This residual material can seriously affect the subsequent use of the mold. Furthermore, since the pipe-making mold is cylindrical, it is difficult to remove the material residue inside. Therefore, it is necessary to improve the existing technology. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this patent is to provide a galvanized pipe mold.

[0004] The technical solution adopted by this patent to solve its technical problem is: a galvanized tube mold, including a mold base, a lower tube mold assembled at the top of the mold base, and an upper tube mold assembled at the top of the lower tube mold. A galvanized pipe mold shell is assembled between the lower pipe mold and the upper pipe mold, and a demolding head is inserted into the end of the galvanized pipe mold shell; The outer wall of the demolding head is provided with a cleaning ring, and the outer wall of the cleaning ring is provided with barbs; Electric push rods are installed on both sides of the top of the mold base. A bearing plate is installed on the drive end of the electric push rod, and the bearing plate is installed on the outer wall of the demolding head. The demolding head has mounting screw grooves on both sides of its end, and the side wall of the bearing plate has mounting screw holes. Bolt bodies are screwed into the mounting screw holes and mounting screw grooves.

[0005] Furthermore, a circular groove is provided at the bottom end of the bolt body, and a bolt rod is installed at the bottom end of the circular groove. The bolt rod is screwed into the mounting screw hole and the mounting screw groove.

[0006] Furthermore, a fixing ring is installed on the upper outer end of the bolt rod, and an annular pressure plate, a spring and an annular rubber sheet are fitted on the circumferential surface of the bolt rod. An extrusion block is installed at the upper edge of the annular rubber sheet.

[0007] Furthermore, the outer wall of the bolt body is provided with an arc surface, and the surface of the arc surface is provided with anti-slip texture.

[0008] Furthermore, the cleaning ring has a filling cavity inside, and an elastic element is installed inside the filling cavity.

[0009] Furthermore, the top of the tube-making mold is provided with a threaded hole, and a threaded tube is screwed into the threaded hole. The top of the galvanized pipe mold shell is provided with an injection port, the bottom end of the threaded tube is inserted into the injection port, and the top of the threaded tube is equipped with a feed hopper.

[0010] The beneficial effects of this patent are: A galvanized pipe mold is provided, which features a demolding head at the front end of the galvanized pipe mold shell. The demolding head moves within the galvanized pipe mold shell to demold the formed galvanized pipe. A cleaning ring is provided on the outer wall of the demolding head. As the cleaning ring moves within the inner wall of the galvanized pipe mold shell, residual galvanized material on the inner wall of the pipe-making mold is washed away, resulting in high cleaning efficiency. This facilitates the removal of residual galvanized material and provides effective protection for the subsequent use of the pipe-making mold. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this patent.

[0012] Figure 2 This is a schematic diagram of the galvanized pipe mold shell of this patent.

[0013] Figure 3 This is a schematic diagram of the cleaning ring of this patent.

[0014] Figure 4 This is a schematic diagram of the bolt body of this patent.

[0015] Explanation of reference numerals in the attached drawings: 1. Mold base; 2. Lower pipe mold; 3. Upper pipe mold; 4. Feed hopper; 5. Threaded hole; 6. Threaded pipe; 7. Electric push rod; 8. Galvanized pipe mold shell; 9. Injection port; 10. Cleaning ring; 11. Demolding head; 12. Mounting screw hole; 13. Bearing plate; 14. Elastic element; 15. Filling cavity; 16. Barb; 17. Bolt body; 171. Circular groove; 172. Annular rubber sheet; 173. Bolt rod; 174. Extrusion block; 175. Annular pressure plate; 176. Fixing ring; 177. Spring; 178. Arc surface. Detailed Implementation

[0016] The present patent is further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the patent. Furthermore, it should be understood that after reading the teachings of this patent, those skilled in the art can make various alterations or modifications to this patent, and these equivalent forms also fall within the scope defined by the appended claims.

[0017] See Figure 1 , Figure 2 , Figure 3 and Figure 4 This is a schematic diagram of the structure of this patent. A galvanized pipe mold includes a mold base 1, a lower pipe mold 2 is mounted on the top of the mold base 1, and an upper pipe mold 3 is mounted on the top of the lower pipe mold 2. The lower pipe mold 2 and the upper pipe mold 3 are arranged opposite to each other. A galvanized pipe mold shell 8 is assembled between the lower pipe mold 2 and the upper pipe mold 3. A demolding head 11 is inserted into the end of the galvanized pipe mold shell 8. The galvanized pipe mold shell 8 is set inside the lower pipe mold 2 and the upper pipe mold 3. The demolding head 11 can move inside the galvanized pipe mold shell 8. The outer wall of the demolding head 11 is provided with a cleaning ring 10, and the outer wall of the cleaning ring 10 is provided with barbs 16. When the demolding head 11 moves inside the galvanized pipe mold shell 8, the inner wall of the galvanized pipe mold shell 8 can be cleaned through the cleaning ring 10. Electric push rods 7 are installed on both sides of the top of the mold base 1. A bearing plate 13 is installed on the drive end of the electric push rod 7. The bearing plate 13 is installed on the outer wall of the demolding head 11. The extension and retraction stroke of the electric push rod 7 can ensure that the demolding head 11 can reach from one end of the galvanized pipe mold shell 8 to the other end. That is, when the electric push rod 11 is fully extended, the demolding head 11 is located at the front end of the galvanized pipe mold shell 8. When the electric push rod 7 is fully retracted, the demolding head 11 can reach the rear end of the galvanized pipe mold shell 8 from the front end. The demolding head 11 has mounting screw grooves on both sides of its end, and the side wall of the support plate 13 has mounting screw holes 12. The mounting screw holes 12 and the mounting screw grooves are screwed with bolt bodies 17, and the demolding head 11 is connected to the drive end of the electric push rod 7 through the support plate 13.

[0018] The bottom end of the bolt body 17 is provided with a circular groove 171, and a bolt rod 173 is installed at the bottom end of the circular groove 171. The bolt rod 173 is screwed into the mounting screw hole 12 and the mounting screw groove. By screwing the bolt rod 173 into the mounting screw hole 12 and the mounting screw groove, the bearing plate 13 connects the electric push rod 7 to the demolding head 11.

[0019] A retaining ring 176 is installed on the upper outer end of the bolt rod 173. An annular pressure plate 175, a spring 177, and an annular rubber sheet 172 are fitted on the circumferential surface of the bolt rod 173. A compression block 174 is installed at the upper edge of the annular rubber sheet 172. The annular pressure plate 175 is located above the retaining ring 176, the spring 177 is located above the annular pressure plate 175, and the annular rubber sheet 172 is located below the retaining ring 176. This causes the annular pressure plate 175 to be pressed downward by the spring 177, and the compression block 174 to be pressed downward by the annular pressure plate 175. This further compresses the edge of the annular rubber sheet 172 by the compression block 174, thereby improving the sealing effect.

[0020] The outer wall of the bolt body 17 is provided with an arc surface 178, and the surface of the arc surface 178 is provided with anti-slip texture. The arc surface 178 facilitates the driving of the bolt body 17.

[0021] The cleaning ring 10 has a filling cavity 15 inside, and an elastic element 14 is installed inside the filling cavity 15. The elastic element 14 can improve the elasticity of the cleaning ring 10 and make the outer wall of the cleaning ring 10 fit against the inner wall of the galvanized pipe mold shell 8.

[0022] The top of the upper mold 3 for making pipes has a threaded hole 5, and a threaded pipe 6 is screwed into the threaded hole 5. The top of the galvanized pipe mold shell 8 has a filling port 9. The bottom end of the threaded pipe 6 is inserted into the filling port 9. The top of the threaded pipe 6 is equipped with a feed hopper 4. The end of the threaded pipe 6 can be screwed into the threaded hole 5 through threaded engagement, and the end of the threaded pipe 6 is inserted into the filling port 9, so that the galvanized pipe mold shell 8 is poured through the feed hopper 4.

[0023] Working process and principle: In use, firstly, threaded pipe 6 is screwed into threaded hole 5, and feeding hopper 4 is connected to filling port 9. Then, it is poured into galvanized pipe mold shell 8. After the galvanized pipe cools and forms, the electric push rod 7 is fully extended. The end of electric push rod 7 is connected to demolding head 11 through bearing plate 13. Then, demolding head 11 is placed in galvanized pipe mold shell 8. Then, the electric push rod 7 is retracted. At this time, demolding head 11 enters mold shell 8 from the front end of galvanized pipe mold shell 8 and demolds the formed galvanized pipe. As demolding head 11 moves, cleaning ring 10 can clean the inner wall of galvanized pipe mold shell 8.

[0024] It will be apparent to those skilled in the art that this patent is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this patent. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this patent is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this patent. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0025] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A galvanized pipe mold, comprising a mold base (1), characterized in that: The top of the mold base (1) is equipped with a lower tube-making mold (2), and the top of the lower tube-making mold (2) is equipped with an upper tube-making mold (3). A galvanized pipe mold shell (8) is assembled between the lower pipe mold (2) and the upper pipe mold (3), and a demolding head (11) is inserted into the end of the galvanized pipe mold shell (8). The outer wall of the demolding head (11) is provided with a cleaning ring (10), and the outer wall of the cleaning ring (10) is provided with barbs (16). Electric push rods (7) are installed on both sides of the top of the mold base (1). A bearing plate (13) is installed on the drive end of the electric push rod (7). The bearing plate (13) is installed on the outer wall of the demolding head (11). The demolding head (11) has mounting screw grooves on both sides of its end, and the side wall of the bearing plate (13) has mounting screw holes (12). The mounting screw holes (12) and mounting screw grooves are screwed with bolt bodies (17).

2. The galvanized tubing mold according to claim 1, characterized in that: The bottom end of the bolt body (17) is provided with a circular groove (171), and a bolt rod (173) is installed at the bottom end of the circular groove (171). The bolt rod (173) is screwed into the mounting screw hole (12) and the mounting screw groove.

3. The galvanized tubing mold according to claim 2, characterized in that: A retaining ring (176) is installed on the upper outer end of the bolt rod (173). An annular pressure plate (175), a spring (177) and an annular rubber sheet (172) are fitted on the circumferential surface of the bolt rod (173). An extrusion block (174) is installed at the upper edge of the annular rubber sheet (172).

4. The galvanized tubing mold according to claim 1, characterized in that: The outer wall of the bolt body (17) is provided with an arc surface (178), and the surface of the arc surface (178) is provided with anti-slip texture.

5. A galvanized tube mold according to claim 1, characterized in that: The cleaning ring (10) has a filling cavity (15) inside, and an elastic element (14) is installed inside the filling cavity (15).

6. A galvanized tube mold according to claim 1, characterized in that: The top of the tube-making mold (3) is provided with a threaded hole (5), and a threaded tube (6) is screwed into the threaded hole (5). The top of the galvanized pipe mold shell (8) is provided with an injection port (9), and the bottom end of the threaded tube (6) is inserted into the injection port (9). The top of the threaded tube (6) is equipped with a feed hopper (4).

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