Train wheel casting mold capable of achieving rapid demolding

Abstract

The utility model discloses a quick demoulding train wheel casting mould which comprises a base and a demoulding mechanism, sliding columns are arranged at four corners of the upper end of the base, an upper mould is connected among the four sliding columns in a sliding mode, and the demoulding mechanism comprises a top column, a limiting groove, a sliding block, a limiting column, a top piece and an assembling block. The top column is slidably connected to the middle of the interior of the base, the limiting grooves are formed in the upper end of the outer surface of the top column, the sliding blocks are slidably connected to the middle of the top wall body of the base, the sliding blocks are slidably connected with the inner walls of the limiting grooves through the limiting columns at the inner side ends, the top piece is arranged at the upper end of the top column, and the assembling blocks are arranged at the upper ends of the sliding blocks. According to the train wheel casting mold capable of achieving rapid demolding, the ejector block and the multiple assembling blocks jointly form a lower mold, when a wheel blank is ejected out after demolding, the lower mold formed by the assembling blocks can synchronously expand outwards to release the wheel blank, and the demolding work is faster and easier.

Description

Technical Field

[0001] The utility model relates to the technical field of train wheel production, in particular to a fast-demolding train wheel casting mold. Background Art

[0002] Trains, that is, train sets, are also called trains. They are an important part of modern transportation, especially in long-distance travel and cargo transportation. The emergence and development of trains have greatly promoted the rapid flow of people and materials, and are of great significance to economic development and social progress. Train wheels, as an important part of trains, have always been one of the focuses of the manufacturing industry. Existing train wheels are mostly made by die-casting with a punch press and a mold. The high-temperature cast steel block is placed in the lower mold by a manipulator. The punch press works and presses down with the upper mold to die-cast the cast steel block into a wheel blank, and then the hydraulic ejector is used to eject the wheel. The wheel blank is ejected and transported to the next process for punching and finishing by a robot. The traditional train wheel casting mold is divided into upper and lower molds. After the cast steel block is punched into a wheel blank by a punch press, it will fill and embed inside the lower mold. At this time, the wheel blank is extremely difficult to be ejected. A hydraulic ejector device is required to slowly exert force upward to eject the wheel blank. The ejection time is too long. If you want to eject the wheel blank quickly, you need to increase the ejection force. At this time, the wheel blank is still in a high temperature state. Strong ejection will affect the molding state of the wheel blank, thereby affecting the quality of the finished wheel. For this reason, we propose a train wheel casting mold with rapid demolding. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a train wheel casting mold with rapid demolding. The top block and multiple assembly blocks together form a lower mold. When the wheel blank is demolded and ejected, the lower mold composed of the assembly blocks will expand outward synchronously to release the wheel blank, making the demolding work faster and easier, and can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rapid demoulding train wheel casting mold, comprising a base and a demoulding mechanism;

[0005] Base: The four corners of the upper end are provided with sliding columns, and an upper mold is slidably connected between the four sliding columns;

[0006] Demoulding mechanism: It includes a top column, a limiting groove, a sliding block, a limiting column, a top plate and an assembly block. The top column is slidably connected to the inner middle of the base. The limiting grooves are all opened at the upper end of the outer surface of the top column. The sliding blocks are slidably connected to the middle part of the top wall of the base. The sliding blocks are slidably connected to the inner wall of the limiting groove through the limiting column at the inner end. The top plate is arranged at the upper end of the top column. The assembly blocks are all arranged at the upper end of the sliding block, which provides a basis for the rapid demolding of the wheel blank. The top block and multiple assembly blocks together form a lower mold. When the wheel blank is demolded and ejected, the lower mold composed of the assembly blocks will expand outward synchronously to release the wheel blank, making the demolding work faster and easier.

[0007] Furthermore, the four sliding blocks are distributed in a cross shape, and the four assembly blocks are installed in cooperation with the top plate to form a lower mold, so that the lower mold can be quickly assembled and separated, which is convenient for rapid demoulding of the wheel blank.

[0008] Furthermore, the demolding mechanism also includes a tension spring, a partition is provided in the middle of the interior of the base, a contact is provided at the lower end of the top column, a tension spring is provided between the upper end of the contact and the lower end of the partition, and the tension spring is sleeved on the lower end of the outer surface of the top column to provide elastic drive for the separation of the lower mold.

[0009] Furthermore, the demoulding mechanism also includes a sleeve, which is arranged at the lower end of the upper mold. The inner wall of the sleeve is installed in cooperation with the outer surface of the lower mold composed of four assembly blocks to provide a stabilizing effect for the stamping of the wheel blank.

[0010] Furthermore, the demolding mechanism also includes a driving component, which includes a motor and a cam. The motor is arranged in the middle of the left side of the bottom wall of the base, the input end of the motor is electrically connected to the output end of the single-chip microcomputer, and the cam is arranged at the right end of the output shaft of the motor. The outer edge of the cam is installed in cooperation with the outer surface of the contact to provide stable drive for the ejection of the wheel blank.

[0011] Furthermore, it also includes a flange, which is arranged in the middle of the upper end of the upper mold and can be quickly connected to the punch of the punch press.

[0012] Furthermore, it also includes a single-chip microcomputer, which is arranged at the upper right end of the base, and the input end of the single-chip microcomputer is electrically connected to an external power supply to provide a control effect for the demoulding work of the wheel blank.

[0013] Compared with the prior art, the beneficial effects of the utility model are: the rapid demoulding train wheel casting mold has the following advantages:

[0014] After the high-temperature cast steel block is placed on top of the top plate, the top plate and the top column move downward, driving the four sliding blocks and the assembly blocks to move inward synchronously. The top plate and the four assembly blocks are combined into a whole to form the lower mold. The punch press works to die-cast the high-temperature cast steel block into a wheel blank. The motor drives the cam to rotate, and the cam pushes up the top column and the top plate. The four sliding blocks and the assembly blocks move outward synchronously, and the top plate and the assembly blocks are separated from each other. The wheel blank will not be embedded in the lower mold and can be easily ejected by the top plate without affecting the molding state of the train wheel blank. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the demoulding mechanism of the utility model;

[0017] Figure 3 It is a schematic diagram of the demoulding mechanism structure of the utility model.

[0018] In the figure: 1 base, 2 sliding column, 3 upper mold, 4 demoulding mechanism, 41 top column, 42 limiting groove, 43 sliding block, 44 limiting column, 45 top plate, 46 assembly block, 47 tension spring, 48 driving component, 481 motor, 482 cam, 49 sleeve, 5 partition, 6 flange, 7 single chip computer. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-3 , This embodiment provides a technical solution: a rapid demoulding train wheel casting mold, comprising a base 1 and a demoulding mechanism 4;

[0021] Base 1: Slide columns 2 are arranged at the four corners of the upper end thereof, which provide guidance and limit for the movement of the upper mold 3. An upper mold 3 is slidably connected between the four slide columns 2. The base 1 also includes a flange 6, which is arranged at the middle of the upper end of the upper mold 3 and can be quickly connected to the punch of the punch press. The base 1 also includes a single-chip microcomputer 7, which is arranged at the upper right end of the base 1. The input end of the single-chip microcomputer 7 is electrically connected to an external power supply to provide a control effect for the demoulding work of the wheel blank;

[0022] Demolding mechanism 4: It includes a top column 41, a limiting groove 42, a sliding block 43, a limiting column 44, a top sheet 45 and an assembly block 46. The top column 41 is slidably connected to the middle of the inner part of the base 1. The limiting grooves 42 are all opened at the upper end of the outer surface of the top column 41. The sliding blocks 43 are slidably connected to the middle part of the top wall of the base 1. The sliding blocks 43 are slidably connected to the inner wall of the limiting groove 42 through the limiting column 44 at the inner end. The top sheet 45 is arranged at the upper end of the top column 41. The assembly blocks 46 are The upper end of the sliding block 43 is arranged to provide a basis for the rapid demoulding of the wheel blank. The four sliding blocks 43 are distributed in a cross shape. The four assembly blocks 46 are installed in conjunction with the top plate 45 to form a lower mold, which can quickly form and separate the lower mold to facilitate the rapid demoulding of the wheel blank. The demoulding mechanism 4 also includes a tension spring 47. A partition 5 is provided in the middle of the base 1. A contact is provided at the lower end of the top column 41. The contact is a spherical contact to reduce friction. The upper end of the contact and the lower end of the partition 5 are spaced apart. A tension spring 47 is provided, and the tension spring 47 is sleeved on the lower end of the outer surface of the ejector column 41 to provide elastic drive for the separation of the lower mold. The demoulding mechanism 4 also includes a sleeve 49, which is arranged at the lower end of the upper mold 3. The inner wall of the sleeve 49 is installed in cooperation with the outer surface of the lower mold composed of four assembly blocks 46 to provide a stable effect for the stamping of the wheel blank. The demoulding mechanism 4 also includes a driving component 48, and the driving component 48 includes a motor 481 and a cam 482. The motor 481 is arranged in the middle of the left side of the bottom wall of the base 1, and the input end of the motor 481 is electrically connected to the output end of the single-chip microcomputer 7. The cam 482 is arranged at the right end of the output shaft of the motor 481. The outer edge of the cam 482 is installed in cooperation with the outer surface of the contact to provide stable drive for the ejection of the wheel blank. The ejector block and multiple assembly blocks together form a lower mold. When the wheel blank is demoulded and ejected, the lower mold composed of the assembly blocks will expand outward synchronously to release the wheel blank, making the demoulding work faster and easier.

[0023] The working principle of a fast demoulding train wheel casting mold provided by the utility model is as follows: when producing train wheel castings, the mold is placed under the punch press, the punch is connected to the upper mold 3 through the flange 6, and the external manipulator puts the high-temperature cast steel block above the top plate 45. The cast steel block presses the top plate 45 downward with its own weight, the tension spring 47 is expanded under force, and the top column 41 also moves downward synchronously. As the top column 41 moves downward, the limiting groove 42 squeezes the limiting column 44, so that the limiting column 44 moves inward, the sliding block 43 also moves inward synchronously, and the assembly block 46 also moves inward accordingly, until the top plate 45 and the four assembly blocks 46 are combined into a whole to form a lower mold. At this time, the high-temperature cast steel block is located inside the lower mold, and the contact contacts the surface of the cam 482. The external punch press works, and the punch carries the upper mold 3 to press down along the sliding column 2. The sleeve 49 is sleeved on the outer surface of the lower mold during the pressing process, so that the die-casting work is smoother. The top plate 45 and the four assembly blocks 46 are combined The lower mold formed is more compact. At this time, the high-temperature cast steel forms a wheel blank between the upper and lower molds. The punch moves the upper mold 3 up and returns to its original position. The single-chip microcomputer 7 controls the motor 481 to operate. The output shaft of the motor 481 drives the cam 482 to rotate. When the raised part of the cam 482 contacts the contact surface and is located directly above, the top column 41 is lifted up, and the tension spring 47 shrinks without force. The limiting groove 42 squeezes the limiting column 44, so that the limiting column 44 moves outward, and the sliding block 43 also moves outward synchronously. The assembly block 46 also moves outward accordingly until the top plate 45 pushes the wheel blank out. At this time, the top plate 45 and the assembly block 46 are separated from each other, and the wheel blank will not be embedded in the lower mold. It can be easily pushed out by the top plate 45 and will not affect the molding state of the wheel blank. When the molded wheel blank is moved to the next process by the robot, under the influence of the tension spring 47, the top plate 45 and the four assembly blocks 46 are still in a separated state, waiting for the next die-casting work.

[0024] It is worth noting that the single chip microcomputer 7 disclosed in the above embodiment is an S7-200 single chip microcomputer, the motor 481 is a YBBP-160L-8 / 7.5kw motor, and the single chip microcomputer 7 controls the operation of the motor 481 using methods commonly used in the prior art.

[0025] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A rapid demoulding train wheel casting mold, characterized in that: It comprises a base (1) and a demoulding mechanism (4); Base (1): sliding columns (2) are provided at four corners of the upper end thereof, and an upper mold (3) is slidably connected between the four sliding columns (2); The demoulding mechanism (4) comprises a top column (41), a limiting groove (42), a sliding block (43), a limiting column (44), a top sheet (45) and an assembly block (46); the top column (41) is slidably connected to the middle of the interior of the base (1); the limiting grooves (42) are all arranged at the upper end of the outer surface of the top column (41); the sliding blocks (43) are slidably connected to the middle of the top wall of the base (1); the sliding blocks (43) are slidably connected to the inner wall of the limiting groove (42) through the limiting column (44) at the inner end; the top sheet (45) is arranged at the upper end of the top column (41); and the assembly blocks (46) are arranged at the upper end of the sliding blocks (43).

2. A rapid demoulding train wheel casting mold according to claim 1, characterized in that: It also includes a single-chip microcomputer (7), which is arranged at the upper right end of the base (1), and the input end of the single-chip microcomputer (7) is electrically connected to an external power supply.

3. The rapid demoulding train wheel casting mold according to claim 1, characterized in that: The four sliding blocks (43) are distributed in a cross shape, and the four assembly blocks (46) are assembled and combined with the top plate (45) to form a lower mold.

4. A rapid demoulding train wheel casting mold according to claim 2, characterized in that: The demoulding mechanism (4) also includes a tension spring (47), a partition (5) is provided in the middle of the interior of the base (1), a contact is provided at the lower end of the top column (41), a tension spring (47) is provided between the upper end of the contact and the lower end of the partition (5), and the tension spring (47) is sleeved on the lower end of the outer surface of the top column (41).

5. The rapid demoulding train wheel casting mold according to claim 3, characterized in that: The demoulding mechanism (4) further comprises a sleeve (49), which is arranged at the lower end of the upper mold (3), and the inner wall of the sleeve (49) is mounted in cooperation with the outer surface of the lower mold composed of four assembly blocks (46).

6. A rapid demoulding train wheel casting mold according to claim 4, characterized in that: The demoulding mechanism (4) further comprises a driving assembly (48), wherein the driving assembly (48) comprises a motor (481) and a cam (482), wherein the motor (481) is arranged at the middle of the left side of the bottom wall of the base (1), the input end of the motor (481) is electrically connected to the output end of the single-chip computer (7), the cam (482) is arranged at the right end of the output shaft of the motor (481), and the outer edge of the cam (482) is mounted in cooperation with the outer surface of the contact.

7. The rapid demoulding train wheel casting mold according to claim 1, characterized in that: It also includes a flange (6), which is arranged at the middle part of the upper end of the upper mold (3).

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