Automatic demolding mold for hot press molding of steel reducing elbows

Abstract

The utility model provides a steel reducing elbow hot press molding automatic demolding mold, which relates to the technical field of reducing elbow molding, and comprises a molding shell, the molding shell is positioned on the ground to support the whole body, two first hydraulic rods are respectively arranged at the centers of the two sides of the molding shell, and two second hydraulic rods are respectively arranged on the two sides of the molding shell. When an elbow is pressed, the two first hydraulic rods are inserted into the two ends of the elbow to protect the two ends of the elbow, the second hydraulic rod is fixedly installed at the top of the forming shell, an extrusion block is fixedly installed at the output end of the second hydraulic rod, and a semicircular groove is formed in one side of the extrusion block. The forming mold is fixedly installed on a working table of the forming shell, a semicircular forming groove is formed in the top of the forming mold, the effect that the reducing elbow in the forming mold is ejected out is achieved through the demolding device, a worker can conveniently take the reducing elbow when machining of the reducing elbow is completed, and the forming efficiency is improved. And convenience is brought to workers.

Description

Technical Field

[0001] This utility model relates to the field of molding technology, and in particular to an automatic demolding mold for hot pressing. Background Technology

[0002] Hot pressing of steel reducing elbows is a process that involves heating the pipe blank to above the critical temperature and then processing it using specialized equipment. This process is mainly used to manufacture reducing elbows, which connect two pipes of different diameters, allowing the pipeline to turn at a certain angle (usually 90 degrees) while maintaining the continuity of the pipe diameter.

[0003] In existing technology, after the bent pipe is hot-pressed into shape in the mold, the bent pipe tends to stick tightly to the inner wall of the mold, making it inconvenient for workers to remove the bent pipe from the mold and reducing the efficiency of bent pipe processing. Utility Model Content

[0004] This utility model proposes an automatic demolding mold for hot pressing of steel reducing elbows to overcome the shortcomings of existing technologies.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: an automatic demolding mold for hot pressing of steel reducing elbows, comprising a forming shell, the forming shell being located on the ground to support the entire assembly; two first hydraulic rods respectively installed at the center of both sides of the forming shell; during elbow pressing, the two first hydraulic rods are inserted into the ends of the elbow to protect the ends of the elbow; a second hydraulic rod is fixedly installed on the top of the forming shell, and an extrusion block is fixedly installed at the output end of the second hydraulic rod, wherein a semi-circular groove is provided on one side of the extrusion block; the forming mold is fixedly installed on the worktable of the forming shell, wherein a semi-circular forming groove is provided on the top of the forming mold; a demolding device is installed inside the forming mold, the demolding device comprising a top plate, wherein the top plate can move up and down inside the forming mold; when the elbow processing is completed, the top plate can push the elbow out of the forming groove of the forming mold.

[0006] The effect achieved by the above components is as follows: When processing steel reducing elbows, the worker first places the steel reducing pipe into the forming groove of the forming mold. Then, the worker opens the first hydraulic rod and the second hydraulic rod. The two ends of the first hydraulic rod are inserted into the two ends of the reducing steel pipe. The second hydraulic rod moves towards the forming mold with the extrusion block. Finally, the extrusion block extrudes the reducing steel pipe in the forming mold. At this time, the first hydraulic rod protects the two ends of the reducing steel pipe. Under the extrusion of the extrusion block, the reducing steel pipe in the forming mold is processed. Finally, the worker removes the elbow from the forming mold through the top plate on the demolding device.

[0007] Preferably, the demolding device includes a triangular plate, and the inside of the molding mold has a cavity, wherein the triangular plate slides in the cavity of the molding mold. A movable rod is fixedly connected to one side of the triangular plate, wherein the movable rod slides through the molding mold. A push rod slides through the top of the molding mold, wherein one end of the push rod is fixedly connected to a top plate. A fixing block is fixedly connected to the end of the push rod located inside the cavity, wherein the fixing block is located above the inclined surface of the triangular plate. Both ends of the spring are fixedly connected to the fixing block and the inner wall of the cavity, respectively, wherein the spring is in a relaxed state when the triangular plate does not press the fixing block.

[0008] The effect achieved by the above-mentioned components is as follows: when it is necessary to remove the reducing elbow from the forming mold, the worker presses the moving rod, the moving rod moves the triangular plate in the cavity, the inclined surface of the triangular plate presses the fixing block, the fixing block moves upward with the push rod and the top plate, the spring contracts, and the top plate pushes the reducing elbow out of the forming mold. The demolding device achieves the effect of pushing the reducing elbow out of the forming mold, which makes it convenient for the worker to take out the reducing elbow after processing, bringing convenience to the worker.

[0009] Preferably, the bottom of the fixing block has a groove, in which the ball is located and rolls.

[0010] The effect achieved by the above components is that the friction between the inclined surface of the triangle and the fixed block is reduced by the rolling of the ball on the inclined surface of the triangle, making it easier for the triangle to move with the fixed block and the top plate.

[0011] Preferably, the two limiting plates are fixedly connected inside the cavity of the forming mold, wherein the two limiting plates are located on both sides of the triangular plate and are in contact with the triangular plate.

[0012] The effect achieved by the above components is that by setting the limit plate, the movement direction of the triangle is restricted, thus preventing the triangle from shaking.

[0013] Preferably, the storage slot is formed in the forming slot of the forming mold, wherein the size of the top plate is adapted to the size of the storage slot.

[0014] The effect achieved by the above-mentioned components is that the top plate is stored by setting up a storage slot, so as to avoid the top plate affecting the normal processing of the reducing elbow.

[0015] Preferably, the outer side of the molding die is provided with a protective device, the protective device including a protective cover, wherein the protective cover is fixedly connected to the outer side of the molding die, wherein one end of the moving rod is located inside the protective cover, the cover plate slides through the protective cover, wherein the size of the cover plate is adapted to the internal size of the protective cover, a first magnet and a second magnet, wherein the first magnet is installed on the cover plate and the second magnet is installed on one side of the protective cover, wherein the first magnet and the second magnet attract each other.

[0016] The aforementioned components achieve the following effect: When the movable rod needs to be pressed, the operator first moves the cover plate, which slides inside the protective cover, exposing the movable rod. Then, the operator presses the movable rod. After the operation is complete, the operator releases the cover plate. Under the mutual attraction between the first and second magnets, the cover plate covers the movable rod again, thus protecting it. This protective device prevents the operator from accidentally touching the movable rod during the molding process, which could lead to substandard processing of the reducing elbow.

[0017] Preferably, the pull plate is fixedly installed on one side of the cover plate, wherein the surface of the pull plate is provided with anti-slip texture.

[0018] The effect achieved by the above-mentioned components is to increase the contact area between the cover and the worker's hand by setting the pull plate, thereby making it easier for the worker to move the cover and bringing convenience to the worker.

[0019] Preferably, the rubber pad is fixedly connected inside the protective cover, wherein the size of the rubber pad is adapted to the side dimensions of the cover plate.

[0020] The effect achieved by the above components is that the rubber pads protect the cover plate and prevent damage to the cover plate when it collides with the protective cover.

[0021] In summary, the beneficial effects of this utility model are as follows:

[0022] When it is necessary to remove the reducing elbow from the forming mold, the worker presses the moving rod. The moving rod moves the triangular plate in the cavity, and the inclined surface of the triangular plate presses against the fixed block. The fixed block moves upward with the ejector rod and the top plate, and the spring contracts. The top plate pushes the reducing elbow out of the forming mold. Afterward, the worker releases the moving rod, and under the action of the spring's return force, the top plate and the moving rod return to their original positions for easy use next time. The demolding device achieves the effect of ejecting the reducing elbow from the forming mold, making it convenient for workers to pick up the reducing elbow after processing, bringing convenience to the workers. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a three-dimensional structural diagram of the molding die of this utility model;

[0025] Figure 3 This is a cross-sectional view of the molding die of this utility model;

[0026] Figure 4 This is a three-dimensional structural diagram of the internal parts of the molding die cavity of this utility model;

[0027] Figure 5 This is a three-dimensional structural diagram of the protective device of this utility model.

[0028] Legend: 1. Molded outer shell; 2. First hydraulic rod; 3. Second hydraulic rod; 4. Extrusion block; 5. Molding mold; 6. Demolding device; 61. Cavity; 62. Triangular plate; 63. Moving rod; 64. Push rod; 65. Fixing block; 66. Spring; 67. Top plate; 68. Ball bearing; 69. Limiting plate; 610. Storage groove; 7. Protective device; 71. Protective cover; 72. Cover plate; 73. First magnet; 74. Second magnet; 75. Rubber pad; 76. Pull plate. Detailed Implementation

[0029] Reference Figure 1-5As shown, this embodiment discloses an automatic demolding mold for hot pressing of steel reducing elbows, including a forming shell 1, which is located on the ground to support the whole; two first hydraulic rods 2 are respectively installed at the center of both sides of the forming shell 1, and when the elbow is pressed, the two first hydraulic rods 2 are inserted into the two ends of the elbow to protect the two ends of the elbow; a second hydraulic rod 3 is fixedly installed on the top of the forming shell 1, and an extrusion block 4 is fixedly installed at the output end of the second hydraulic rod 3, wherein a semi-circular groove is opened on one side of the extrusion block 4; a forming mold 5 is fixedly installed on the worktable of the forming shell 1, wherein a semi-circular forming groove is opened on the top of the forming mold 5; a demolding device 6 is installed inside the forming mold 5, and the demolding device 6 includes a top plate 67, wherein the top plate 67 can move up and down inside the forming mold 5, and when the elbow is processed, the top plate 67 can push the elbow out of the forming groove of the forming mold 5. When processing steel reducing elbows, the workers first place the steel reducing pipe into the forming groove of the forming mold 5. Then, the workers open the first hydraulic rod 2 and the second hydraulic rod 3. The two ends of the first hydraulic rod 2 are inserted into the two ends of the reducing steel pipe, and the second hydraulic rod 3 moves the extrusion block 4 towards the forming mold 5. Finally, the extrusion block 4 extrudes the reducing steel pipe in the forming mold 5. At this time, the first hydraulic rod 2 protects the two ends of the reducing steel pipe. Under the extrusion of the extrusion block 4, the reducing steel pipe in the forming mold 5 is processed. Finally, the workers remove the elbow from the forming mold 5 through the top plate 67 on the demolding device 6.

[0030] Reference Figure 1-5As shown, the demolding device 6 includes a triangular plate 62, and a cavity 61 is provided inside the molding mold 5. The triangular plate 62 slides in the cavity 61 of the molding mold 5. A moving rod 63 is fixedly connected to one side of the triangular plate 62, and the moving rod 63 slides through the molding mold 5. A push rod 64 slides through the top of the molding mold 5, and one end of the push rod 64 is fixedly connected to a top plate 67. A fixing block 65 is fixedly connected to the end of the push rod 64 inside the cavity 61, and the fixing block 65 is located above the inclined surface of the triangular plate 62. The two ends of the spring 66 are fixedly connected to the fixing block 65 and the inner wall of the cavity 61, respectively. The spring 66 is in a relaxed state when the triangular plate 62 does not press the fixing block 65. When it is necessary to remove the reducing elbow from the forming mold 5, the operator presses the moving rod 63. The moving rod 63 moves the triangular plate 62 in the cavity 61. The inclined surface of the triangular plate 62 presses against the fixing block 65. The fixing block 65 moves upward with the push rod 64 and the top plate 67. The spring 66 retracts, and the top plate 67 pushes the reducing elbow out of the forming mold 5. Afterward, the operator releases the moving rod 63. Under the action of the spring 66's restoring force, the top plate 67 and the moving rod 63 return to their original positions for easy use next time. The demolding device 6 achieves the effect of pushing out the reducing elbow from the forming mold 5, making it convenient for the operator to take out the reducing elbow after processing, thus bringing convenience to the operator.

[0031] Reference Figure 1-5 As shown, a groove is provided at the bottom of the fixing block 65, in which a ball bearing 68 is located and rolls. The ball bearing 68 rolling on the inclined surface of the triangular plate 62 reduces the friction between the inclined surface of the triangular plate 62 and the fixing block 65, facilitating the movement of the triangular plate 62, carrying the fixing block 65 and the top plate 67. Two limiting plates 69 are fixedly connected inside the cavity 61 of the forming mold 5, with the two limiting plates 69 located on both sides of the triangular plate 62 and fitting against it. The limiting plates 69 restrict the movement direction of the triangular plate 62, preventing it from wobbling. A receiving groove 610 is formed in the forming groove of the forming mold 5, with the size of the top plate 67 matching the size of the receiving groove 610. The receiving groove 610 stores the top plate 67, preventing it from interfering with the normal processing of the reducing elbow.

[0032] Reference Figure 1-5As shown, a protective device 7 is provided on the outside of the molding mold 5. The protective device 7 includes a protective cover 71, which is fixedly connected to the outside of the molding mold 5. One end of the moving rod 63 is located inside the protective cover 71. A cover plate 72 slides through the protective cover 71, and the size of the cover plate 72 is adapted to the internal size of the protective cover 71. A first magnet 73 is installed on the cover plate 72, and a second magnet 74 is installed on one side of the protective cover 71. The first magnet 73 and the second magnet 74 attract each other. When it is necessary to press the movable rod 63, the operator first moves the cover plate 72. The cover plate 72 slides inside the protective cover 71, exposing the movable rod 63 inside the protective cover 71. Then, the operator presses the movable rod 63. After the operation of the movable rod 63 is completed, the operator releases the cover plate 72. Under the mutual attraction between the first magnet 73 and the second magnet 74, the cover plate 72 covers the movable rod 63 inside the protective cover 71 again, achieving the effect of protecting the movable rod 63. The protective device 7 achieves the effect of protecting the movable rod 63, avoiding the situation where the operator accidentally touches the movable rod 63 during the operation of the forming mold 5, which could lead to the failure of the eccentric elbow processing.

[0033] Reference Figure 1-5 As shown, a pull plate 76 is fixedly installed on one side of the cover plate 72, and the surface of the pull plate 76 is provided with anti-slip texture. By setting the pull plate 76, the contact area between the cover plate 72 and the worker's hand is increased, thereby facilitating the movement of the cover plate 72 and providing convenience for the worker. A rubber pad 75 is fixedly connected to the inside of the protective cover 71, and the size of the rubber pad 75 is adapted to the side dimensions of the cover plate 72. By setting the rubber pad 75, the cover plate 72 is protected, preventing damage to the cover plate 72 when it collides with the protective cover 71.

[0034] Working Principle: When processing steel reducing elbows, the operator first places the steel reducing pipe into the forming groove of forming mold 5. Then, the operator opens the first hydraulic rod 2 and the second hydraulic rod 3. The two ends of the first hydraulic rod 2 are inserted into the two ends of the reducing steel pipe, while the second hydraulic rod 3 moves the extrusion block 4 towards the forming mold 5. Finally, the extrusion block 4 extrudes the reducing steel pipe in the forming mold 5. At this time, the first hydraulic rod 2 protects the two ends of the reducing steel pipe. Under the extrusion action of the extrusion block 4, the reducing steel pipe in the forming mold 5 is processed. When it is necessary to remove the reducing elbow from the forming mold 5, the operator... Pressing the moving rod 63 causes the triangular plate 62 in the cavity 61 to move. The limiting plates 69 on both sides of the triangular plate 62 limit the direction of movement of the triangular plate 62. The inclined surface of the triangular plate 62 presses the ball 68 on the fixing block 65, causing the ball 68 to rotate and move upward. The fixing block 65 moves upward with the push rod 64 and the top plate 67, causing the spring 66 to retract. The top plate 67 pushes the reducing elbow out of the forming mold 5. The demolding device 6 achieves the effect of pushing the reducing elbow out of the forming mold 5, making it convenient for workers to pick up the reducing elbow after processing, thus bringing convenience to the workers.

[0035] When it is necessary to press the movable rod 63, the operator first moves the cover plate 72 through the pull plate 76. The cover plate 72 slides inside the protective cover 71, exposing the movable rod 63 in the protective cover 71. Then, the operator presses the movable rod 63. After the operation of the movable rod 63 is completed, the operator releases the cover plate 72. Under the mutual attraction between the first magnet 73 and the second magnet 74, the cover plate 72 covers the movable rod 63 in the protective cover 71 again, achieving the effect of protecting the movable rod 63. The protective device 7 achieves the effect of protecting the movable rod 63, avoiding the situation where the operator accidentally touches the movable rod 63 during the operation of the forming mold 5, which could lead to the failure of the eccentric elbow processing.

Claims

1. An automatic demolding die for hot press forming of a steel reducing elbow, characterized by: Including the shaped shell (1), the shaped shell (1) is supported on the ground as a whole; Two first hydraulic rods (2), two first hydraulic rods (2) are installed at the center of the two sides of the shaped shell (1), and the two first hydraulic rods (2) are inserted into the two ends of the elbow to protect the two ends of the elbow when the elbow is pressed into a curve; Second hydraulic rod (3), the second hydraulic rod (3) is fixedly installed on the top of the shaped shell (1), and the output end of the second hydraulic rod (3) is fixedly installed with an extrusion block (4), wherein one side of the extrusion block (4) is provided with a semicircular groove; Shaped mold (5), the shaped mold (5) is fixedly installed on the workbench of the shaped shell (1), wherein the top of the shaped mold (5) is provided with a semicircular forming groove; The demolding device (6) is installed in the shaped mold (5), and the demolding device (6) comprises a top plate (67), wherein the top plate (67) can move up and down in the shaped mold (5), and the top plate (67) can push out the elbow from the forming groove of the shaped mold (5) when the elbow is processed.

2. The steel reducing elbow hot press forming automatic demolding die according to claim 1, characterized in that: The demolding device (6) comprises a triangular plate (62), and the shaped mold (5) is provided with a cavity (61) in the inside, wherein the triangular plate (62) slides in the cavity (61) of the shaped mold (5), one side of the triangular plate (62) is fixedly connected with a moving rod (63), and the moving rod (63) slides through the shaped mold (5); The top rod (64) slides through the top of the shaped mold (5), one end of the top rod (64) is fixedly connected with the top plate (67), one end of the top rod (64) in the cavity (61) is fixedly connected with a fixed block (65), and the fixed block (65) is located above the inclined surface of the triangular plate (62); The spring (66) is fixedly connected with the fixed block (65) and the inner wall of the cavity (61) at both ends, wherein the spring (66) is in a relaxed state when the triangular plate (62) does not press the fixed block (65).

3. The steel reducing elbow hot press forming automatic demolding die according to claim 2, characterized in that: Also including: The bottom of the fixed block (65) is provided with a groove, and the ball (68) is located in the groove of the fixed block (65) and rolls.

4. The steel reducing elbow hot press forming automatic demolding die according to claim 2, characterized in that: Also including: Two limit plates (69) are fixedly connected in the cavity (61) of the shaped mold (5), wherein the two limit plates (69) are located on the two sides of the triangular plate (62) and are attached to the triangular plate (62).

5. The steel reducing elbow hot press forming automatic demolding die according to claim 2, characterized in that: Also including: The receiving groove (610) is provided in the forming groove of the shaped mold (5), wherein the size of the top plate (67) is matched with the size of the receiving groove (610).

6. The steel reducing elbow hot press forming automatic demolding die according to claim 2, characterized in that: The outer side of the shaped mold (5) is provided with a protection device (7), the protection device (7) comprises a protection cover (71), wherein the protection cover (71) is fixedly connected to the outer side of the shaped mold (5), and one end of the moving rod (63) is located in the protection cover (71). A cover plate (72) is slid through the protective cover (71), wherein the size of the cover plate (72) is matched with the internal size of the protective cover (71); A first magnet (73) is installed on the cover plate (72), and a second magnet (74) is installed on one side of the protective cover (71), wherein the first magnet (73) and the second magnet (74) are attracted to each other.

7. The steel reducing elbow hot press forming automatic demolding die according to claim 6, characterized in that: Further comprising: A pull plate (76) is fixedly installed on one side of the cover plate (72), wherein the surface of the pull plate (76) is provided with anti-skid lines.

8. The steel reducing elbow hot press forming automatic demolding die according to claim 6, characterized in that: Further comprising: A rubber pad (75) is fixedly connected to the inside of the protective cover (71), wherein the size of the rubber pad (75) is matched with the side size of the cover plate (72).

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