Forming mold capable of realizing batch injection molding of high-speed rail lower embedded parts
By incorporating multiple injection cavities and positioning holes within the molding die, the problem of low injection efficiency in traditional high-speed rail embedded parts has been solved, enabling efficient batch injection and convenient removal, thus improving production efficiency.
Patent Information
- Application Number
- CN202423074259.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-12-13
AI Technical Summary
Traditional high-speed rail track embedded parts injection molding can only be done one piece at a time, resulting in low production efficiency and difficulty in removing them from the mold after injection molding.
The main body of the molding die is designed with multiple injection cavities, equipped with a first handle and positioning holes to facilitate mold handling and mold closure; the positioning rod and ejection hole structure on the fixed plate enable batch injection molding and convenient removal of multiple embedded parts.
This technology enables batch injection molding and convenient removal of embedded parts under high-speed rail tracks, improving production efficiency and molding results.
Smart Images

Figure CN223478164U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of molding molds for embedded parts under high-speed railway tracks, specifically a molding mold for mass injection molding of embedded parts under high-speed railway tracks. Background Technology
[0002] Embedded parts (precast embedded parts) are components that are pre-installed (buried) in concealed works. They are components that are placed during the pouring of the structure and are used for overlapping when building the superstructure to facilitate the installation and fixing of external engineering equipment foundations. Embedded parts are mostly made of metal, such as steel bars or cast iron, but can also be made of non-metallic rigid materials such as wood and plastic.
[0003] Traditionally, high-speed rail track embedded parts can only be injection molded one piece at a time, and batch injection molding of embedded parts is not possible. This results in low production efficiency, and it is also inconvenient for workers to remove the embedded parts from the mold after injection molding. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a molding die for mass injection molding of embedded parts under high-speed rail tracks. This solves the problem mentioned in the background art that traditional embedded parts under high-speed rail tracks can generally only be injection molded one piece at a time, and cannot be mass-molded. This results in low production efficiency, and it is also inconvenient for workers to remove the embedded parts from the molding die after injection molding.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a molding die for mass injection molding of embedded parts under high-speed railway tracks, comprising a molding die body, wherein multiple injection cavities are formed within the molding die body, the multiple injection cavities are arranged in a rectangular array within the molding die body, a first handle is fixedly installed at both ends of the molding die body, four first positioning holes are formed on the surface of the molding die body, the four first positioning holes are arranged in a rectangular array on the molding die body, multiple ejection holes are formed at the bottom of the molding die body, the multiple ejection holes are all located at the bottom of the injection cavities, and a fixing plate is provided at the bottom of the molding die body.
[0006] Using the above technical solution, the injection cavity opened in the main body of the molding mold can effectively inject and mold the embedded parts under the high-speed rail. Since there are multiple injection cavities opened in the main body of the molding mold, multiple embedded parts under the high-speed rail can be injected and molded at one time. The first handle installed at both ends of the main body of the molding mold can be easily moved by the workers.
[0007] Preferably, four positioning rods are fixedly installed on the upper end of the fixing plate, and the four positioning rods are arranged in a rectangular array on the upper end of the fixing plate. Multiple protrusions are fixedly installed on the upper end of the fixing plate, and the multiple protrusions are inserted into the ejection holes.
[0008] By adopting the above technical solution, the positioning rod on the fixing plate is inserted into the first positioning hole, so that the protrusions on the fixing plate are inserted into the ejection hole. This allows the high-speed rail under-embedded part to have a certain gap in the ejection hole during injection molding, which facilitates the ejection block to eject the high-speed rail under-embedded part.
[0009] Preferably, the upper end of the molding die body is provided with an upper die, and the upper die has four second positioning holes, which are arranged in a rectangular array on the upper die. Two second handles are fixedly installed on the upper die.
[0010] By adopting the above technical solution, the upper mold is moved to the forming mold body by the first handle, so that the positioning rods are inserted into the second positioning holes opened on the upper mold, thereby making the upper mold and the forming mold body perfectly closed together, thereby improving the forming effect of the embedded parts under the high-speed rail.
[0011] Preferably, four threaded rods are fixedly installed at the bottom of the fixing plate, and the four threaded rods are arranged in a rectangular array at the bottom of the fixing plate. Multiple ejector rods are fixedly installed at the bottom of the fixing plate, and the multiple ejector rods are inserted into ejector holes. A base plate is provided at the bottom of the fixing plate, and four through holes are opened on the base plate, and the four through holes are arranged in a rectangular array on the base plate.
[0012] Using the above technical solution, the fixing plate is removed from the molding die body, and then the fixing plate is reversed. After the fixing plate is reversed, the operator inserts the four threaded rods on the fixing plate into the first positioning hole. After the four threaded rods are inserted into the first positioning hole, the fixing plate can be positioned well, so that the ejector rods on the fixing plate can be inserted into the ejector holes. Then, the operator presses down on the molding die body, so that the ejector rods push the pre-embedded parts of the high-speed rail under injection from the injection cavity. The four through holes opened on the bottom plate can effectively protect the ejector rods.
[0013] Preferably, a connecting block is provided at the bottom of the threaded rod, a support plate is fixedly installed at the bottom of the connecting block, and a threaded hole is opened at the top of the connecting block.
[0014] By adopting the above technical solution, the connecting plate and support plate installed at the bottom of the four threaded rods can provide good support for the main body of the forming mold. Since there are threaded holes on the connecting block, it can be fixed to the threaded rods in a good way, and it is also convenient to disassemble the connecting block.
[0015] Compared with the prior art, the beneficial effects of the present invention are:
[0016] 1. This molding die for mass injection molding of high-speed rail under-embedded parts can effectively inject high-speed rail under-embedded parts through the injection cavities opened in the main body of the molding die. Since there are multiple injection cavities opened in the main body of the molding die, multiple high-speed rail under-embedded parts can be injected at one time. Then, the operator moves the upper mold to the main body of the molding die through the first handle, so that the positioning rods are inserted into the second positioning holes opened in the upper mold, thereby making the upper mold and the main body of the molding die perfectly closed together, thereby improving the molding effect of the high-speed rail under-embedded parts.
[0017] 2. The molding mold for mass-produced high-speed rail under-embedded parts involves removing the fixing plate from the main body of the molding mold, then flipping the fixing plate. After the fixing plate is flipped, the operator inserts the four threaded rods on the fixing plate into the first positioning hole. Once the four threaded rods are inserted into the first positioning hole, the fixing plate can be positioned well, allowing the ejector rods on the fixing plate to be inserted into the ejector holes. Then, the operator presses down on the main body of the molding mold, causing the ejector rods to eject the pre-embedded high-speed rail parts from the injection cavity. Attached Figure Description
[0018] Figure 1 This is a three-dimensional structural diagram of the molding die for the embedded parts under the high-speed rail of this utility model;
[0019] Figure 2 This is a schematic diagram of the exploded structure of the forming mold for the embedded parts under the high-speed rail of this utility model;
[0020] Figure 3 This is a side view of the molding die for the high-speed rail under-rail embedded parts of this utility model.
[0021] Figure 4 This is a schematic diagram of the fixing plate and related structures of this utility model.
[0022] In the diagram: 1. Molding mold body; 2. Injection cavity; 3. First handle; 4. First positioning hole; 5. Ejection hole; 6. Fixing plate; 7. Positioning rod; 8. Protrusion block; 9. Upper mold; 10. Second positioning hole; 11. Second handle; 12. Threaded rod; 13. Ejection rod; 14. Base plate; 15. Through hole; 16. Connecting block; 17. Support plate; 18. Threaded hole. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Example 1:
[0025] Referring to Figures 1-4, a molding die for mass injection molding of embedded parts under high-speed railway tracks is described. The molding die body 1 has multiple injection cavities 2 arranged in a rectangular array within the molding die body 1. First handles 3 are fixedly installed at both ends of the molding die body 1. Four first positioning holes 4 are arranged in a rectangular array on the surface of the molding die body 1. Multiple ejection holes 5 are located at the bottom of the molding die body 1, and these ejection holes 5 are all located within the injection cavities 2. At the bottom, a fixing plate 6 is provided at the bottom of the forming mold body 1. Four positioning rods 7 are fixedly installed at the upper end of the fixing plate 6. The four positioning rods 7 are arranged in a rectangular array at the upper end of the fixing plate 6. Multiple protrusions 8 are fixedly installed at the upper end of the fixing plate 6. The multiple protrusions 8 are inserted into the ejection holes 5. An upper mold 9 is provided at the upper end of the forming mold body 1. Four second positioning holes 10 are opened on the upper mold 9. The four second positioning holes 10 are arranged in a rectangular array on the upper mold 9. Two second handles 11 are fixedly installed on the upper mold 9.
[0026] Working principle: When injection molding is required for the high-speed rail under-embedded parts, the positioning rod 7 on the fixing plate 6 is inserted into the first positioning hole 4, so that the protrusions 8 on the fixing plate 6 are inserted into the ejection holes 5. This allows the high-speed rail under-embedded parts to have a certain opening in the ejection holes 5 during injection molding, making it easier for the ejection blocks to eject the high-speed rail under-embedded parts. Then, because the injection cavity 2 opened in the molding die body 1 can effectively inject the high-speed rail under-embedded parts, and because there are multiple injection cavities 2 opened in the molding die body 1, multiple high-speed rail under-embedded parts can be injected at one time. The molding process involves using the first handles 3 installed at both ends of the molding mold body 1 to allow workers to easily move the molding mold body 1. The molding mold body 1 has four first positioning holes 4, each with a positioning rod 7 inserted into it. After the worker injects the molding liquid into the injection cavity 2, the first handles 3 are used to move the upper mold 9 onto the molding mold body 1, allowing the positioning rods 7 to be inserted into the second positioning holes 10 on the upper mold 9. This ensures a perfect closure between the upper mold 9 and the molding mold body 1, thereby improving the molding effect of the embedded parts under the high-speed rail.
[0027] Example 2:
[0028] Referring to Figures 1-4, a molding die for mass injection molding of embedded parts under high-speed railway tracks is described. Four threaded rods 12 are fixedly installed at the bottom of the fixing plate 6, arranged in a rectangular array. Multiple ejector rods 13 are also fixedly installed at the bottom of the fixing plate 6, inserted into ejector holes 5. A base plate 14 is provided at the bottom of the fixing plate 6, with four through holes 15 arranged in a rectangular array. A connecting block 16 is provided at the bottom of each threaded rod 12, and a support plate 17 is fixedly installed at the bottom of the connecting block 16. A threaded hole 18 is provided at the top of the connecting block 16.
[0029] Working principle: After the injection molding of the embedded parts under the high-speed rail is completed, the workers remove the fixing plate 6 from the molding mold body 1, and then flip the fixing plate 6. After the fixing plate 6 is flipped, the workers insert the four threaded rods 12 on the fixing plate 6 into the first positioning holes 4. After the four threaded rods 12 are inserted into the first positioning holes 4, the fixing plate 6 can be positioned well, so that the ejector rods 13 on the fixing plate 6 are inserted into the ejector holes 5. Then the workers press down on the molding mold body 1 to make... The ejector rod 13 ejects all the pre-embedded parts of the high-speed rail under injection from the injection cavity 2. The four through holes 15 on the base plate 14 can effectively protect the ejector rod 13. The connecting plate and support plate 17 installed at the bottom of the four threaded rods 12 can effectively support the main body 1 of the molding mold. The threaded hole 18 on the connecting block 16 can effectively fix it to the threaded rod 12, and also facilitate the disassembly of the connecting block 16.
[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A molding die for mass injection molding of embedded parts under high-speed railway tracks, comprising a molding die body (1), characterized in that: The molding die body (1) has multiple injection cavities (2) inside, and the multiple injection cavities (2) are arranged in a rectangular array inside the molding die body (1). The molding die body (1) has a first handle (3) fixedly installed at both ends. The molding die body (1) has four first positioning holes (4) on its surface, and the four first positioning holes (4) are arranged in a rectangular array on the molding die body (1). The molding die body (1) has multiple ejection holes (5) at its bottom, and the multiple ejection holes (5) are all located at the bottom of the injection cavities (2). The molding die body (1) has a fixing plate (6) at its bottom.
2. The molding die for mass injection molding of embedded parts under high-speed railway tracks according to claim 1, characterized in that: Four positioning rods (7) are fixedly installed on the upper end of the fixing plate (6). The four positioning rods (7) are arranged in a rectangular array on the upper end of the fixing plate (6). Multiple protrusions (8) are fixedly installed on the upper end of the fixing plate (6). The multiple protrusions (8) are inserted into the ejection hole (5).
3. The molding die for mass injection molding of embedded parts under high-speed railway tracks according to claim 1, characterized in that: The upper end of the molding die body (1) is provided with an upper die (9), and four second positioning holes (10) are opened on the upper die (9). The four second positioning holes (10) are arranged in a rectangular array on the upper die (9). Two second handles (11) are fixedly installed on the upper die (9).
4. The molding die for mass injection molding of embedded parts under high-speed railway tracks according to claim 1, characterized in that: Four threaded rods (12) are fixedly installed at the bottom of the fixing plate (6). The four threaded rods (12) are arranged in a rectangular array at the bottom of the fixing plate (6). Multiple ejector rods (13) are fixedly installed at the bottom of the fixing plate (6). The multiple ejector rods (13) are inserted into ejector holes (5). A base plate (14) is provided at the bottom of the fixing plate (6). Four through holes (15) are opened on the base plate (14). The four through holes (15) are arranged in a rectangular array on the base plate (14).
5. The molding die for mass injection molding of embedded parts under high-speed railway tracks according to claim 4, characterized in that: The bottom of the threaded rod (12) is provided with a connecting block (16), the bottom of the connecting block (16) is fixedly installed with a support plate (17), and the top of the connecting block (16) is provided with a threaded hole (18).