Die casting machine for railway track assembly casting production

Abstract

The utility model discloses a die-casting machine for railway track assembly casting production. The die-casting machine comprises a workbench, a lower die base and a demolding mechanism. Four supporting columns are fixedly connected to the upper surface of the workbench, a lower pressing plate capable of moving up and down is slidably connected to the middles of the four supporting columns, and an upper die base is installed on the lower surface of the lower pressing plate through bolts; the lower die base is installed in the middle of the upper surface of the workbench through bolts, and the lower die base and the upper die base are installed in a matched mode; according to the die-casting machine for producing the railway track assembly castings, the speed and force of ejecting the castings out of a die in the die-casting machine for producing the railway track assembly castings can be kept consistent, the efficiency of a production line and the consistency of products are improved, the production efficiency is improved, and the production cost is reduced. And the requirement for contact between an operator and the hot mold is reduced, the operation risk is reduced, and the safety of the operator is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of railway track component production, and particularly relates to a die-casting machine for producing railway track component castings. Background Technique

[0002] Castings of railway track components play an important role in the railway transportation system and are usually produced by die-casting processes. These castings include track connectors, fixed fixtures, railway wheels, and braking components, etc. Their key features include high strength, wear resistance, and precise dimensional requirements. However, during the die-casting process, the smooth demolding can ensure the continuity and efficiency of the production line. If the castings cannot be demolded in time, it will extend the production cycle, affecting the production plan and product delivery time;

[0003] Traditional die-casting machines for producing railway track component castings require die-casting machine operators to use manual tools, such as pliers or special part-taking tools, to take out the castings from the mold after confirming that the castings have completely cooled and solidified;

[0004] Traditional die-casting machines for producing railway track component castings have the following problems: When demolding, workers may come into contact with hot metal surfaces or sharp edges, resulting in a significant increase in the risk of accidental injury. Moreover, manual operation is relatively slow and cannot ensure that the castings are completely removed at one time, which will reduce the overall production efficiency, especially more significantly in large-scale production. For this reason, we propose a die-casting machine for producing railway track component castings. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide a die-casting machine for producing railway track component castings, which can keep the speed and force of ejecting the castings from the mold in the die-casting machine for producing railway track component castings consistent, improve the efficiency of the production line and the consistency of products, and can effectively solve the problems in the background technique.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: A die-casting machine for producing railway track component castings, including a workbench, a lower die base, and a demolding mechanism;

[0007] Workbench: Four support columns are fixedly connected to the upper surface thereof, and a lower pressing plate that can move up and down is slidably connected in the middle between the four support columns. The lower surface of the lower pressing plate is installed with an upper die base through bolts;

[0008] Lower die base: It is installed on the middle of the upper surface of the workbench through bolts and is installed in cooperation with the upper die base;

[0009] Demolding mechanism: It is arranged inside the workbench. The top of the demolding mechanism is fitted and installed with the lower die base, which can keep the speed and force of ejecting the casting from the mold in the die-casting machine for railway track component casting production consistent, improving the efficiency of the production line and the consistency of products, and reducing the need for operators to contact the hot mold, reducing the operation risk and enhancing the safety of operators.

[0010] Furthermore, it also includes a single-chip microcomputer, which is arranged at the right end of the front side of the workbench. The input end of the single-chip microcomputer is electrically connected to an external power supply, facilitating the control of the operation of each electrical appliance.

[0011] Furthermore, it also includes an injection cylinder, which is installed on the upper surface of the lower pressure plate through bolts. The injection port of the injection cylinder is communicated with the liquid inlet of the lower die base. A delivery pipe is fixedly connected to the liquid inlet at the right end of the outer surface of the injection cylinder, and the top of the delivery pipe is fixedly connected with a liquid inlet hopper, ensuring that the correct amount of metal and pressure are injected into the mold to form the required casting shape.

[0012] Furthermore, it also includes a fixing plate, which is fixedly connected to the upper ends between the four support columns. An electric hydraulic push rod is installed on the upper surface of the fixing plate through bolts. The telescopic end of the electric hydraulic push rod is fixedly connected to the injection end of the injection cylinder, and the input end of the electric hydraulic push rod is electrically connected to the output end of the single-chip microcomputer to drive die-casting.

[0013] Furthermore, the demolding mechanism also includes inclined surface columns one and two. The inclined surface columns one are all slidably connected to the end of the limiting groove far from the center of the workbench, and the inclined surface columns two are all slidably connected to the middle of the inner wall of the limiting groove. The inclined surface columns two are all located between the inclined surface columns one and three in the same guiding chute. The inclined surfaces at the bottom of the inclined surface columns one are all fitted and installed with the inclined surfaces of the adjacent inclined surface columns two far from the center of the workbench, and the inclined surfaces at the bottom of the inclined surface columns three are all fitted and installed with the inclined surfaces of the adjacent inclined surface columns two close to the center of the workbench, which can keep the speed and force of ejecting the casting from the mold in the die-casting machine for railway track component casting production consistent.

[0014] Furthermore, the demolding mechanism also includes spring two. The spring two are all fixedly connected between the upper surface of the inclined surface columns three and the top wall of the adjacent guiding chute, and the spring two are all sleeved on the outer surface of the ejector rod, storing elastic energy and can be released when needed.

[0015] Furthermore, the demolding mechanism also includes inclined surface columns one and two. The inclined surface columns one are all slidably connected to the end of the limiting groove far from the center of the workbench, and the inclined surface columns two in the same guiding chute are all slidably connected to the middle of the inner wall of the limiting groove. The inclined surface at the bottom of the inclined surface columns one is fitted and installed with the inclined surface of the adjacent inclined surface columns two, and the inclined surface at the bottom of the inclined surface columns three is also fitted and installed with the inclined surface of the adjacent inclined surface columns two, driving the ejector rod to eject the casting.

[0016] Furthermore, the demoulding mechanism further includes a button and a first spring. The buttons are fixedly connected to the top ends of the first inclined columns. A first spring is fixedly connected between the lower surface of the button and the upper surface of the workbench. The first springs are sleeved on the outer surfaces of the first inclined columns to drive the demoulding mechanism.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows: The die-casting machine for the production of railway track component castings of the present utility model has the following advantages:

[0018] When the operator presses the button, the button drives the first inclined column and compresses the first spring, which is convenient for subsequent effective rebound, so that it moves downward along the inner wall of the limit groove. The inclined surface of the first inclined column contacts the second inclined column, generating a squeezing force, and pushing the second inclined column to gradually approach the third inclined column. When the inclined surface of the second inclined column contacts the inclined surface at the bottom end of the third inclined column, it will generate a squeezing force on it, causing the third inclined column to move upward along the inner wall of the limit groove. The upward movement of the third inclined column drives the ejector rod to rise through the sliding seal bearing into the round opening on the lower die base. At the same time, the upward movement of the ejector rod will compress the second spring, storing elastic energy, which can be released when needed to help the ejector rod return to the initial position or the position required for the next operation. However, the ejector rod will contact the castings that have cooled and solidified. Due to the squeezing force generated by the upward movement of the third inclined column, the ejector rod has sufficient force to eject the castings from the inside of the lower die base, so that the speed and force of ejecting the castings from the mold in the die-casting machine for the production of railway track component castings can be kept consistent, thereby improving the efficiency of the production line and the consistency of the products, and reducing the need for the operator to contact the hot mold, reducing the operation risk, and enhancing the safety of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of the present utility model;

[0020] Figure 2 It is a schematic structural diagram of the front side cross-section of the present utility model;

[0021] Figure 3 It is a schematic enlarged structural diagram at A of the present utility model.

[0022] In the figure: 1 electric hydraulic push rod, 2 fixed plate, 3 support column, 4 injection cylinder, 5 lower pressing plate, 6 workbench, 7 single-chip microcomputer, 8 demoulding mechanism, 801 button, 802 first spring, 803 first inclined column, 804 guide sliding groove, 805 limit groove, 806 second inclined column, 807 third inclined column, 808 ejector rod, 809 second spring, 810 sealing block, 811 round opening, 9 lower die base, 10 conveying pipe, 11 liquid inlet hopper, 12 upper die base. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0024] Please refer to Figures 1-3 , this embodiment provides a technical solution: a die-casting machine for the production of railway track component castings, including a workbench 6, a lower die base 9, and a demoulding mechanism 8;

[0025] Workbench 6: Four support columns 3 are fixedly connected to the upper surface thereof. A vertically movable lower pressing plate 5 is slidably connected to the middle between the four support columns 3. The lower surface of the lower pressing plate 5 is bolted with an upper die base 12. It also includes an injection cylinder 4. The injection cylinder 4 is bolted to the upper surface of the lower pressing plate 5. The injection port of the injection cylinder 4 is communicated with the liquid inlet of the lower die base 9. A delivery pipe 10 is fixedly connected to the liquid inlet at the right end of the outer surface of the injection cylinder 4. The top of the delivery pipe 10 is fixedly connected with a liquid inlet hopper 11. It also includes a fixing plate 2. The fixing plate 2 is fixedly connected to the upper end between the four support columns 3. An electric hydraulic push rod 1 is bolted to the upper surface of the fixing plate 2. The telescopic end of the electric hydraulic push rod 1 is fixedly connected to the injection end of the injection cylinder 4. The input end of the electric hydraulic push rod 1 is electrically connected to the output end of the single-chip microcomputer 7. It also includes a single-chip microcomputer 7. The single-chip microcomputer 7 is arranged at the right end of the front side of the workbench 6. The input end of the single-chip microcomputer 7 is electrically connected to an external power source. Pour the heated metal alloy into the liquid inlet hopper 11, and it flows to the injection cylinder 4 through the delivery pipe 10. Then, the single-chip microcomputer 7 controls the operation of the electric hydraulic push rod 1. The telescopic end of the electric hydraulic push rod 1 pushes the injection cylinder 4, so that the injection cylinder 4 drives the lower pressing plate 5 and the upper die base 12 to move downward along the outer surface of the support column 3 until the upper die base 12 moves to completely fit with the lower die base 9, forming a whole, ensuring the closure of the mold and the accuracy of the injection space. When the upper die base 12 completely fits with the lower die base 9, after the mold is completely closed, the electric hydraulic push rod 1 continues to push the injection end of the injection cylinder 4, applying high pressure to the heated metal alloy inside it, so that the metal alloy is pushed through the injection cylinder 4 into the cavity where the upper die base 12 and the lower die base 9 fit, filling the entire mold space. After filling, the mold will be cooled and solidified. During the cooling process, the metal alloy will gradually solidify into the required casting shape;

[0026] Lower die holder 9: It is installed on the middle of the upper surface of the workbench 6 through bolts. The lower die holder 9 is installed in cooperation with the upper die holder 12. When the upper die holder 12 moves to fit perfectly with the lower die holder 9, they form a whole, ensuring the closing of the mold and the accuracy of the injection space. The telescopic end of the electric hydraulic push rod 1 is driven by the single-chip microcomputer 7 to separate the upper die holder 12 from the lower die holder 9;

[0027] Demolding mechanism 8: It is arranged inside the workbench 6. The top end of the demolding mechanism 8 is fitted and installed with the lower mold base 9. The demolding mechanism 8 includes a guiding chute 804, a limiting groove 805, an inclined column three 807, a ejector rod 808, a sliding seal bearing 810 and a round opening 811. The guiding chutes 804 are respectively opened at the left and right ends inside the workbench 6. The inner walls of the guiding chutes 804 are both provided with limiting grooves 805. One end of the limiting groove 805 close to the center of the workbench 6 is slidably connected with an inclined column three 807. The top ends of the inclined column three 807 are fixedly connected with ejector rods 808. The ejector rods 808 are respectively slidably connected inside the sliding openings on the upper surface of the workbench 6 through sliding seal bearings 810. The round openings 811 are respectively opened at the left and right ends inside the lower mold base 9. The round openings 811 are respectively fitted and installed with the vertically adjacent ejector rods 808. The demolding mechanism 8 further includes a spring two 809. The spring two 809 is fixedly connected between the upper surface of the inclined column three 807 and the top wall of the adjacent guiding chute 804. The spring two 809 is sleeved on the outer surface of the ejector rod 808. The demolding mechanism 8 further includes an inclined column one 803 and an inclined column two 806. The inclined column one 803 is slidably connected to one end of the limiting groove 805 away from the center of the workbench 6. The inclined column two 806 is slidably connected to the middle of the inner wall of the limiting groove 805. The inclined column two 806 is located between the inclined column one 803 and the inclined column three 807 in the same guiding chute 804. The inclined surfaces at the bottom ends of the inclined column one 803 are respectively fitted and installed with the inclined surfaces of the adjacent inclined column two 806 away from the center of the workbench 6. The inclined surfaces at the bottom ends of the inclined column three 807 are respectively fitted and installed with the inclined surfaces of the adjacent inclined column two 806 close to the center of the workbench 6. The demolding mechanism 8 further includes a button 801 and a spring one 802. The button 801 is fixedly connected to the top end of the inclined column one 803. A spring one 802 is fixedly connected between the lower surface of the button 801 and the upper surface of the workbench 6. The spring one 802 is sleeved on the outer surface of the inclined column one 803. When the operator presses the button 801, the button 801 drives the inclined column one 803 and compresses the spring one 802 for subsequent effective rebound, so that it moves downward along the inner wall of the limiting groove 805. The inclined surface of the inclined column one 803 contacts the inclined column two 806, generating a squeezing force to push the inclined column two 806 gradually closer to the inclined column three 807. When the inclined surface of the inclined column two 806 contacts the inclined surface at the bottom end of the inclined column three 807, it will generate a squeezing force on it, causing the inclined column three 807 to move upward along the inner wall of the limiting groove 805. The upward movement of the inclined column three 807 drives the ejector rod 808 to rise through the sliding seal bearing 810 into the round opening 811 on the lower mold base 9. At the same time, the upward movement of the ejector rod 808 will compress the spring two 809, storing elastic energy, which can be released when needed to help the ejector rod 808 return to the initial position or the position required for the next operation. However, the ejector rod 808 will contact the castings that have cooled and solidified. Due to the squeezing force generated by the upward movement of the inclined column three 807, the ejector rod 808 has sufficient force to eject the castings from the inside of the lower mold base 9, thus eliminating the need for,The operator manually demolds, reducing the need for the operator to come into contact with the hot mold, lowering the operation risk, enhancing the operator's safety, and then performing die-casting again after ejection.

[0028] The working principle of a die-casting machine for producing railway track component castings provided by the present utility model is as follows: First, the heated metal alloy is poured into the liquid inlet hopper 11 and flows through the delivery pipe 10 to the injection cylinder 4. Then, the single-chip microcomputer 7 regulates the operation of the electro-hydraulic push rod 1. The telescopic end of the electro-hydraulic push rod 1 pushes the injection cylinder 4, causing the injection cylinder 4 to drive the lower pressing plate 5 and the upper mold base 12 to move downward along the outer surface of the support column 3 until the upper mold base 12 moves to completely fit with the lower mold base 9, forming a whole, ensuring the closure of the mold and the accuracy of the injection space. When the upper mold base 12 completely fits with the lower mold base 9 and the mold is completely closed, the electro-hydraulic push rod 1 continues to push the injection end of the injection cylinder 4, applying high pressure to the heated metal alloy inside it, so that the metal alloy is pushed through the injection cylinder 4 into the cavity where the upper mold base 12 fits with the lower mold base 9, filling the entire mold space. After filling, the mold will be cooled and solidified. During the cooling process, the metal alloy will gradually solidify into the required casting shape. Subsequently, the single-chip microcomputer 7 regulates the telescopic end of the electro-hydraulic push rod 1 to drive the separation of the upper mold base 12 and the lower mold base 9. The operator presses the button 801, and the button 801 drives the inclined surface column 803 and compresses the spring 802 for effective subsequent rebound, causing it to move downward along the inner wall of the limit groove 805. The inclined surface of the inclined surface column 803 contacts the inclined surface column 806, generating a squeezing force that pushes the inclined surface column 806 to gradually approach the inclined surface column 807. When the inclined surface of the inclined surface column 806 contacts the inclined surface at the bottom of the inclined surface column 807, it will generate a squeezing force on it, causing the inclined surface column 807 to move upward along the inner wall of the limit groove 805. The upward movement of the inclined surface column 807 drives the ejector rod 808 to rise through the sliding seal bearing 810 into the round opening 811 on the lower mold base 9. At the same time, the upward movement of the ejector rod 808 will compress the spring 809, storing elastic energy, which can be released when needed to help the ejector rod 808 return to its initial position or the position required for the next operation. However, the ejector rod 808 will contact the already cooled and solidified casting. Due to the squeezing force generated by the upward movement of the inclined surface column 807, the ejector rod 808 has sufficient force to eject the casting from the inside of the lower mold base 9, thus eliminating the need for the operator to manually demold, reducing the need for the operator to come into contact with the hot mold, lowering the operation risk, enhancing the operator's safety, and performing die-casting again after ejection.

[0029] It should be noted that the specific model of the single-chip microcomputer 7 disclosed in the above embodiments is S7-200, and the electro-hydraulic push rod 1 is preferably selected as DYTZ. The single-chip microcomputer 7 controls the operation of the electro-hydraulic push rod 1 using a method commonly used in the prior art.

[0030] The above are only embodiments of the present utility model, and thus do not limit the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall similarly be included within the patent protection scope of the present utility model.

Claims

1. A die-casting machine for producing railway track component castings, characterized in that: It comprises a workbench (6), a lower die base (9) and a demoulding mechanism (8); A workbench (6): four support columns (3) are fixedly connected to its upper surface, a lower pressing plate (5) that can move up and down is slidably connected in the middle between the four support columns (3), and an upper die seat (12) is installed on the lower surface of the lower pressing plate (5) by bolts; Lower die base (9): It is installed on the middle part of the upper surface of the workbench (6) by means of bolts, and the lower die base (9) is installed in coordination with the upper die base (12); Demoulding mechanism (8): It is arranged inside the workbench (6), and the top end of the demoulding mechanism (8) is installed in cooperation with the lower mould base (9).

2. A die-casting machine for producing railway track component castings according to claim 1, characterized in that: It also includes a single chip microcomputer (7), which is arranged at the right end of the front side of the workbench (6), and the input end of the single chip microcomputer (7) is electrically connected to an external power supply.

3. The die-casting machine for producing railway track component castings according to claim 2, characterized in that: It also includes an injection cylinder (4), which is mounted on the upper surface of the lower pressure plate (5) by bolts, and the injection port of the injection cylinder (4) is connected to the liquid inlet of the lower mold base (9). The liquid inlet at the right end of the outer surface of the injection cylinder (4) is fixedly connected to a delivery pipe (10), and the top end of the delivery pipe (10) is fixedly connected to a liquid inlet hopper (11).

4. The die-casting machine for producing railway track component castings according to claim 3, characterized in that: It also includes a fixing plate (2), the fixing plate (2) being fixedly connected to the upper ends between the four support columns (3), an electric hydraulic push rod (1) being mounted on the upper surface of the fixing plate (2) by means of bolts, the telescopic end of the electric hydraulic push rod (1) being fixedly connected to the injection end of the injection cylinder (4), and the input end of the electric hydraulic push rod (1) being electrically connected to the output end of the single chip computer (7).

5. The die-casting machine for producing railway track component castings according to claim 1, characterized in that: The demoulding mechanism (8) comprises a guide slot (804), a limit slot (805), a bevel column three (807), a push rod (808), a sliding seal bearing (810) and a round mouth (811); the guide slot (804) is respectively arranged at the left and right ends inside the workbench (6); the inner wall of the guide slot (804) is arranged with a limit slot (805); the end of the limit slot (805) close to the center of the workbench (6) is slidably connected with the bevel column three (807); the top of the bevel column three (807) is fixedly connected with the push rod (808); the push rod (808) is slidably connected to the sliding mouth on the upper surface of the workbench (6) through the sliding seal bearing (810); the round mouth (811) is respectively arranged at the left and right ends inside the lower mold base (9); the round mouth (811) is matched with the push rod (808) adjacent to the vertical direction.

6. The die-casting machine for producing railway track component castings according to claim 5, characterized in that: The demoulding mechanism (8) also includes a second spring (809), which is fixedly connected between the upper surface of the third inclined column (807) and the top wall of the adjacent guide slot (804), and the second spring (809) is sleeved on the outer surface of the push rod (808).

7. The die-casting machine for producing railway track component castings according to claim 5, characterized in that: The demoulding mechanism (8) further comprises a bevel column 1 (803) and a bevel column 2 (806), wherein the bevel column 1 (803) is slidably connected to one end of the limiting groove (805) away from the center of the workbench (6), and the bevel column 2 (806) is slidably connected to the middle part of the inner wall of the limiting groove (805). The bevel column 2 (806) is located between the bevel column 1 (803) and the bevel column 3 (807) in the same guide groove (804). The bevel at the bottom end of the bevel column 1 (803) is mounted in cooperation with the bevel at the adjacent bevel column 2 (806) away from the center of the workbench (6), and the bevel at the bottom end of the bevel column 3 (807) is mounted in cooperation with the bevel at the adjacent bevel column 2 (806) close to the center of the workbench (6).

8. The die-casting machine for producing railway track component castings according to claim 7, characterized in that: The demoulding mechanism (8) further comprises a button (801) and a spring (802); the button (801) is fixedly connected to the top of the inclined column (803); the spring (802) is fixedly connected between the lower surface of the button (801) and the upper surface of the workbench (6); and the spring (802) is sleeved on the outer surface of the inclined column (803).

Images