Lost foam mold casting structure of engine cylinder block

Abstract

The utility model relates to the technical field of evanescent mode, and discloses an engine cylinder evanescent mode mold casting structure which comprises an upper mold body, a lower mold body arranged below the upper mold body and a casting cavity formed in the surface of the lower mold body, and further comprises a connecting pull rod fixedly arranged on the side wall of the upper mold body, and a bearing groove is formed in the connecting pull rod; the bearing lifting block is arranged in the bearing groove, and a moving part is arranged on one side of the bearing lifting block; the movable open groove is formed in the side wall of the lower die body, a plurality of sets of lifting stand columns are installed in a groove of the casting cavity, and one end of the movable piece penetrates through the movable open groove to be connected with the multiple sets of lifting stand columns; and the reinforcing check block is arranged in the groove of the connecting pull rod, and the reinforcing check block is attached to the surface of the bearing lifting block. The lifting stand columns detained at the bottom of the cavity of the lower mold body can move upwards, a finished evanescent mode mold in the casting cavity is lifted upwards, rapid demolding work can be completed, and the casting efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lost foam, in particular to a lost foam mold casting structure for an engine cylinder body. Background Art

[0002] Lost foam casting is also known as dry sand solid mold negative pressure casting. Compared with traditional sand casting, lost foam casting has the following significant advantages: lost foam casting does not require parting and coring, so it is particularly suitable for box body, shell castings and bobbin castings with complex geometric shapes that are difficult to complete with traditional casting; lost foam casting uses dry sand to bury the model, which can be used repeatedly, with less industrial waste and significantly reduced costs; lost foam casting has no flash or burrs, and the cleaning hours can be reduced by more than 80%; lost foam casting can be used for multiple purposes, not only for cast iron and ductile iron, but also for steel castings, so it is flexible in conversion and has a wide range of applications.

[0003] At present, when casting a lost foam mold, the lost foam mold after forming is retained in the lower mold. Generally, a tool is used to remove the lost foam mold in the lower mold. Since the lost foam mold after forming is closely combined with the lower mold, it is difficult to remove the lost foam mold. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an engine cylinder lost foam mold casting structure, which solves the problems mentioned in the above background.

[0005] The utility model provides the following technical solution: comprising: an upper mold body, a lower mold body arranged below the upper mold body, and a casting cavity opened on the surface of the lower mold body,

[0006] Also includes:

[0007] A connecting rod is fixed on the side wall of the upper mold body, and a bearing groove is provided inside the connecting rod;

[0008] The load-bearing lifting block is placed in the groove of the load-bearing groove, and a moving part is arranged on one side of the load-bearing lifting block;

[0009] A movable slot is provided on the side wall of the lower mold body, a plurality of groups of lifting columns are installed in the slot of the casting cavity, and one end of the movable member passes through the movable slot and is connected with the plurality of groups of lifting columns;

[0010] The reinforcement stopper is arranged in the groove of the connecting rod, and the reinforcement stopper is in contact with the surface of the bearing and lifting block.

[0011] Furthermore, a driving motor is installed on the side wall of the lower mold body, and an adjusting screw is connected to the output end of the driving motor.

[0012] Furthermore, the side wall of the upper mold body is provided with a connecting block meshingly connected with the adjusting screw.

[0013] Furthermore, a limiting slide rod is arranged on one side of the adjusting screw rod, and the side walls of the upper mold body and the lower mold body are provided with limiting blocks which are slidably sleeved on the outside of the limiting slide rod.

[0014] Furthermore, a horizontal railing extending toward the bearing and lifting block is fixedly provided on the top of the movable member, and the bearing and lifting block is in a triangular structure.

[0015] Furthermore, a sliding block fixedly connected to the moving part and the lifting column is slidably arranged in the movable slot.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The present application utilizes the drive motor to drive the upper mold body to complete longitudinal movement, thereby realizing the combination of the upper mold body and the lower mold body and the demolding work, and the connecting pull rod will move longitudinally with the movement of the upper mold body. When the upper mold body is lifted for demolding, the front end of the bearing lifting block will be stuck in the lower part of the cross railing, so that the bearing lifting block can lift the cross railing and the moving parts connected to the cross railing upward, and the moving parts are connected to several groups of lifting columns. Therefore, the lifting columns retained at the bottom of the cavity of the lower mold body will move upward, thereby lifting the lost foam mold finished product in the casting cavity upward, and the rapid demolding work can be completed. The automatic demolding is completed through the mechanical structure, which reduces manual participation, greatly reduces the difficulty of demolding, and improves casting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a side view of the utility model;

[0020] Figure 3 This is an enlarged view of the moving parts of the utility model;

[0021] Figure 4 This is an enlarged view of the connecting rod of the utility model.

[0022] In the figure: 1. upper mold body; 2. lower mold body; 3. adjusting screw; 4. limiting slide rod; 5. driving motor; 6. casting cavity; 7. connecting pull rod; 8. bearing groove; 10. bearing lifting block; 11. reinforcement block; 12. movable slot; 13. moving part; 15. cross railing; 16. lifting column. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1-4 , including: an upper mold body 1, a lower mold body 2 arranged below the upper mold body 1, and a casting cavity 6 opened on the surface of the lower mold body 2, the casting material is injected into the casting cavity 6 for casting, the connecting rod 7 is fixedly arranged on the side wall of the upper mold body 1, and a bearing groove 8 is opened inside the connecting rod 7; the bearing lifting block 10 is placed in the groove of the bearing groove 8, the bearing lifting block 10 adopts a triangular structure, and a part of the bearing lifting block 10 extends laterally from the groove of the bearing groove 8 to the outside. A moving part 13 is arranged on one side of the bearing lifting block 10, and a horizontal railing 15 extending toward the bearing lifting block 10 is fixedly arranged at the front end of the moving part 13, and the horizontal railing 15 is placed horizontally, and the front end of the extended part of the bearing lifting block 10 is against the lower end face of the horizontal railing 15, and when the entire bearing lifting block 10 moves upward, the horizontal railing 15 and the moving part 13 connected to the horizontal railing 15 can be dragged to move upward. The movable slot 12 is provided on the side wall of the lower mold body 2, and a plurality of groups of lifting columns 16 are installed in the slot of the casting cavity 6. One end of the movable member 13 passes through the movable slot 12 through a slider and is connected to the plurality of groups of lifting columns 16. When the movable member 13 moves upward, the lifting columns 16 connected to the lifting columns 16 through the support rod will move upward in the casting cavity 6, and a plurality of groups of openings are provided at the bottom of the casting cavity 6, and the openings are perfectly embedded in the lifting columns 16. When the lifting columns 16 move upward, the casting in the casting cavity 6 can be lifted and moved upward, thereby completing the demoulding work;

[0025] The reinforcement block 11 is arranged in the groove of the connecting rod 7, and the reinforcement block 11 is fitted with the surface of the bearing and lifting block 10, and the reinforcement block 11 provides stable support for the bearing and lifting block 10. The side wall of the lower mold body 2 is installed with a driving motor 5, and the output end of the driving motor 5 is connected with an adjusting screw 3, and the side wall of the upper mold body 1 is provided with a connecting block meshing with the adjusting screw 3. A limiting slide bar 4 is arranged on one side of the adjusting screw 3, and the side walls of the upper mold body 1 and the lower mold body 2 are provided with a limiting block slidingly sleeved on the outside of the limiting slide bar 4. The adjusting screw 3 can be rotated by the driving motor 5, and the limiting block outside the upper mold body 1 will drag the upper mold body 1 to move longitudinally. In the process of the upper mold body 1 moving upward by the driving motor 5, the horizontal end of the bearing and lifting block 10 will contact the lower end surface of the cross railing 15, and as the upper mold body 1 continues to move upward, the horizontal end of the bearing and lifting block 10 drags the cross railing 15 to move upward, thereby driving the movement. The part 13 moves upward along the groove of the movable slot 12. When the movable part 13 is about to reach the highest point of the movable slot 12, there is enough space between the upper mold body 1 and the lower mold body 2. In this space, the molded part of the engine cylinder block lost foam mold mounted on the lifting column 16 can be taken out by tools, and a group of springs are installed at the bottom of each group of lifting columns 16. When the supporting lifting block 10 moves downward, the lifting column 16 drives the movable part 13 and the cross railing 15 to descend synchronously under the traction of the spring, so that the lifting column 16 is perfectly embedded in the opening.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An engine block lost foam mold casting structure, comprising: An upper mold body (1), a lower mold body (2) disposed below the upper mold body (1), and a casting cavity (6) opened on the surface of the lower mold body (2), It is characterized by further comprising: A connecting rod (7) is fixedly mounted on the side wall of the upper mold body (1), and a bearing groove (8) is formed inside the connecting rod (7); A load-bearing lifting block (10) is placed in the groove of the load-bearing groove (8), and a moving part (13) is provided on one side of the load-bearing lifting block (10); A movable slot (12) is formed on the side wall of the lower mold body (2), a plurality of groups of lifting columns (16) are installed in the slot of the casting cavity (6), and one end of the movable member (13) passes through the movable slot (12) and is connected to the plurality of groups of lifting columns (16); The reinforcement stopper (11) is arranged in a groove of the connecting pull rod (7), and the reinforcement stopper (11) is in contact with the surface of the bearing and lifting block (10).

2. The lost foam mold casting structure of an engine cylinder block according to claim 1, characterized in that: A driving motor (5) is installed on the side wall of the lower mold body (2), and an adjusting screw (3) is connected to the output end of the driving motor (5).

3. The lost foam mold casting structure of an engine cylinder block according to claim 1, characterized in that: The side wall of the upper mold body (1) is provided with a connecting block meshingly connected with the adjusting screw rod (3).

4. The lost foam mold casting structure of an engine cylinder block according to claim 1, characterized in that: A limit slide bar (4) is arranged on one side of the adjusting screw rod (3), and a limit block which is slidably sleeved on the outside of the limit slide bar (4) is arranged on the side walls of the upper mold body (1) and the lower mold body (2).

5. The lost foam mold casting structure of an engine cylinder block according to claim 1, characterized in that: A horizontal railing (15) extending toward the bearing and lifting block (10) is fixedly provided on the top of the moving member (13), and the bearing and lifting block (10) is in a triangular structure.

6. The lost foam mold casting structure of an engine cylinder block according to claim 1, characterized in that: A sliding block fixedly connected to the moving member (13) and the lifting column (16) is slidably arranged in the groove of the movable slot (12).

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