A steel frame bushing die casting device

Abstract

This utility model discloses a die-casting device for steel frame bushings, belonging to the field of steel frame bushing processing equipment. It includes a die-casting table, on which an upper mold base, a lower mold base, and an injection molding machine barrel are installed. The lower mold base has a cavity structure, through which a fixed column is inserted. A spacer ring is provided on the fixed column, and the spacer ring and the cavity structure combine to form a molding cavity. The fixed column extends downward into a pre-set rectangular groove on the die-casting table, where a lever is provided. One end of the lever abuts against the fixed column. By setting the lever in the rectangular groove of the die-casting table, demolding is achieved using the rocker principle, eliminating the need for additional traditional hydraulic jacking components, significantly simplifying the equipment structure and reducing equipment costs. Compared to manual prying, workers only need to press the lever's handle to easily lift the fixed column and eject the molded bushing from the cavity structure, greatly reducing labor intensity.

Description

Technical Field

[0001] This utility model belongs to the technical field of steel frame bushing processing equipment, specifically relating to a steel frame bushing die casting device. Background Technology

[0002] The steel frame bushing die casting device is a special equipment designed for the mass production of steel frame bushings. Its core function is to use the steel frame as an embedded support structure and to accurately inject molten metal or polymer raw materials into a preset mold cavity through the die casting process. After the raw materials cool and solidify, an integrated component with both the high strength of the steel frame and the functionality of the bushing is formed.

[0003] Currently, traditional die-casting equipment typically includes core components such as upper and lower mold bases, injection molding mechanism, and demolding mechanism. After molten raw material is injected into the mold cavity and cooled to form, the molded workpiece is removed from the mold with the help of external force. Demolding is usually carried out by hydraulic pushing or prying. However, these demolding methods have certain drawbacks. The hydraulic cylinder pushing method requires an additional hydraulic system, which increases equipment cost and energy consumption. The manual prying method is not only labor-intensive, but also easily leads to the scrapping of the workpiece. Utility Model Content

[0004] The purpose of this invention is to provide a steel frame bushing die casting device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a steel frame bushing die casting device, including a die casting table, wherein an upper mold base, a lower mold base and an injection molding machine barrel are installed on the die casting table; The lower mold base is provided with a cavity structure, a fixed post is provided through the molding cavity, and a spacer ring is provided on the fixed post. The spacer ring and the cavity structure are combined to form the molding cavity. The fixing column extends downward into a pre-set rectangular groove on the die-casting table; The rectangular groove is equipped with a toggle rod. One end of the toggle rod abuts against a fixed post, while the other end of the toggle rod is mounted on the side wall of the rectangular groove in conjunction with a movable shaft.

[0006] In a preferred embodiment, the bottom of the upper mold base is provided with an injection cavity, and the injection molding barrel is connected to the injection cavity through an injection tube.

[0007] In a preferred embodiment, a fixing block is provided on one side of the actuating rod, the fixing block abutting against the rectangular groove, and an actuating handle is provided on the other side of the actuating rod.

[0008] In a preferred embodiment, guide plates are installed on both sides near one end of the fixing block, and the distance between the two guide plates matches the size of the fixing block.

[0009] In a preferred embodiment, the upper end of the fixed column is provided with an expanding cylinder, the fixed column is provided with an outer diameter thread, the expanding cylinder is provided with an inner diameter thread, and the fixed column and the expanding cylinder are spirally connected.

[0010] In a preferred embodiment, the die-casting platform is provided with a fixed frame, and the fixed frame is provided with a cylinder, the output end of which is connected to the upper mold base.

[0011] In a preferred embodiment, the fixing frame is provided with two sets of guide bushings, each set of guide bushings having a guide post passing through it, and the two sets of guide posts being connected to the upper mold base.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This steel frame bushing die-casting device uses a lever set in the rectangular groove of the die-casting table to achieve demolding by using the rocker principle. It eliminates the need for additional traditional hydraulic jacking components, greatly simplifying the equipment structure and significantly reducing equipment costs. Compared to manual prying, workers only need to press the lever handle to easily lift the fixed column and push the molded bushing out of the cavity structure, greatly reducing labor intensity. This steel frame bushing die-casting device, through the spiral connection structure of the fixed column and the expansion cylinder, can flexibly replace expansion cylinders of different sizes according to the production needs of steel frame bushings of different specifications. It also forms a suitable molding cavity with the spacer ring and cavity structure, which enhances the adaptability of the equipment to products of multiple specifications. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the installation structure of the fixed column and the actuating rod of this utility model. Figure 3 This is a schematic diagram of the expansion cylinder installation structure of this utility model; Figure 4 This is a schematic diagram of the installation structure of the upper mold base and guide pillar of this utility model.

[0014] In the diagram: 1. Die-casting table; 11. Rectangular groove; 12. Fixing frame; 121. Guide bushing; 2. Upper mold base; 3. Lower mold base; 31. Cavity structure; 4. Injection molding machine barrel; 5. Fixing column; 51. Spacer ring; 511. External diameter thread; 6. Actuating rod; 61. Movable shaft; 611. Fixing block; 62. Actuating handle; 63. Guide plate; 7. Expanding cylinder; 71. Internal diameter thread; 8. Cylinder; 9. Guide column. Detailed Implementation

[0015] The present invention will be further described below with reference to the embodiments.

[0016] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0017] Please see Figures 1-4 This utility model provides a steel frame bushing die casting device, including a die casting table 1. The die casting table 1 is equipped with an upper mold base 2, a lower mold base 3, and an injection molding machine barrel 4. The bottom of the upper mold base 2 is provided with an injection cavity. The injection molding machine barrel 4 is connected to the injection cavity through an injection tube. The lower mold base 3 is provided with a cavity structure 31. A spacer ring 51 is combined with the cavity structure 31 to form a molding cavity. A fixed column 5 is provided through the molding cavity. The fixed column 5 is provided with a spacer ring 51. The fixed column 5 extends downward into a rectangular groove 11 preset in the die casting table 1. A toggle rod 6 is provided in the rectangular groove 11. One end of the toggle rod 6 abuts against the fixed column 5, and the other end of the toggle rod 6 is provided on the side wall of the rectangular groove 11 in conjunction with a movable shaft 61. A fixed block 611 is provided on one side of the toggle rod 6, which abuts against the ground of the rectangular groove 11. A toggle handle 62 is provided on the other side of the toggle rod 6.

[0018] In this embodiment, a lever 6 is installed in the rectangular groove 11 of the die-casting table 1. The lever 6, in conjunction with the movable shaft 61, and combined with the rocker principle, lifts the fixed column 5 to achieve demolding. With this structure, there is no need to configure traditional hydraulic jacking components, which greatly simplifies the equipment structure and significantly reduces equipment costs. During operation, the operator only needs to press the lever 62 to lift the fixed column 5 with the lever 6, without the need for manual prying, which significantly reduces labor intensity. At the same time, the spacer ring 51 on the fixed column 5 works in concert with the cavity structure 31 to ensure that the workpiece is subjected to uniform force during demolding, effectively avoiding the scrapping problems such as scratches caused by traditional prying methods.

[0019] Please see Figure 2 and Figure 3 Guide plates 63 are installed on both sides near one end of the fixed block 611, and the distance between the two guide plates 63 matches the size of the fixed block 611.

[0020] In this embodiment, by matching the dimensions of the guide plates 63 on both sides with the fixed block 611, the fixed block 611 can be limited. When the operator presses the lever 62 to drive the lever 6 to rotate around the movable shaft 61, the lever 6 and the fixed block 611 will move up and down in the gap between the guide plates 63, so as to prevent the fixed block 611 from tilting due to force displacement.

[0021] Please see Figure 3The upper end of the fixed column 5 is provided with an expansion cylinder 7. The fixed column 5 is machined with an outer diameter thread 511, and the expansion cylinder 7 is machined with an inner diameter thread 71. The fixed column 5 and the expansion cylinder 7 are spirally connected.

[0022] The fixed column 5 and the expanding cylinder 7 are connected by a screw. According to the forming requirements of different specifications of steel frame bushings, the operator can remove the expanding cylinder 7 from the fixed column 5 by rotating it. This allows for flexible replacement of expanding cylinders 7 of different sizes. Then, it can be combined with the spacer ring 51 and the cavity structure 31 to form a suitable forming cavity, which enhances the adaptability of the equipment to products of multiple specifications.

[0023] Please see Figure 1 and Figure 4 The die-casting table 1 is equipped with a fixed frame 12, and a cylinder 8 is mounted on the fixed frame 12. The output end of the cylinder 8 is connected to the upper mold base 2. The fixed frame 12 is equipped with two sets of guide bushings 121, and each set of guide bushings 121 has a guide post 9 passing through it. The two sets of guide posts 9 are connected to the upper mold base 2.

[0024] In this embodiment, the two sets of guide bushings 121 on the fixed frame 12 cooperate with the guide post 9. When the cylinder 8 drives the upper mold base 2 to move downward, the guide post 9 will slide stably along the inner wall of the guide bushing 121, effectively limiting the offset of the upper mold base 2. The setting of the guide bushing 121 can reduce the frictional loss when the guide post 9 slides and reduce the wear of the guide post 9 and the fixed frame 12.

[0025] In this application, the injection molding machine barrel 4 is specifically an MA series injection molding machine. Since this injection molding machine is an existing mature product, its specific structure and working principle are all existing publicly available technologies, and will not be described in detail here.

[0026] Working principle and usage process of this utility model: First, select a suitable expansion cylinder 7 according to the specifications of the steel frame bushing to be produced. Then, the workers rotate the expansion cylinder 7 and spiral it onto the fixed column 5. Next, start cylinder 8. The output end of cylinder 8 drives the upper mold base 2 to move downward. When moving downward, the two sets of guide pillars 9 slide along the inner wall of the guide bushing 121 on the fixed frame 12. Under the constraint of the guide bushing 121, the upper mold base 2 moves horizontally downward until it closes with the lower mold base 3. After the two are completely closed, the injection molding machine barrel 4 delivers molten raw material to the injection cavity at the bottom of the upper mold base 2 through the injection tube. The raw material flows into the molding cavity of the lower mold base 3 along the injection cavity until the raw material fully fills the molding cavity. Then, stop the injection and keep the mold closed. When demolding is required after injection molding, first control cylinder 8 to drive upper mold base 2 to move upward until upper mold base 2 returns to the initial position. Then, the operator presses the toggle handle 62 on one side of the toggle rod 6, so that the toggle rod 6 rotates around the movable shaft 61 of the side wall of the rectangular groove 11. At this time, the other end of the toggle rod 6 lifts the fixed column 5 upward. The fixed column 5 drives the spacer ring 51 to rise synchronously, pushing the molded steel skeleton bushing out of the cavity structure 31 of the lower mold base 3. The operator can then directly remove the ejected workpiece.

[0027] 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 of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A steel frame bushing die-casting device, comprising a die-casting table (1), characterized in that: The die-casting table (1) is equipped with an upper mold base (2), a lower mold base (3) and an injection molding machine barrel (4); The lower mold base (3) is provided with a cavity structure (31), a fixed column (5) is provided through the cavity structure (31), and a spacer ring (51) is provided on the fixed column (5). The spacer ring (51) and the cavity structure (31) are combined to form a molding cavity. The fixed column (5) extends downward into the rectangular groove (11) preset in the die-casting table (1); The rectangular groove (11) is provided with a toggle rod (6), one end of which abuts against the fixed post (5), and the other end of which is provided on the side wall of the rectangular groove (11) in conjunction with the movable shaft (61).

2. The steel frame bushing die-casting device according to claim 1, characterized in that: The bottom of the upper mold base (2) is provided with an injection cavity, and the injection molding machine barrel (4) is connected to the injection cavity through the injection pipe.

3. The steel frame bushing die-casting device according to claim 1, characterized in that: The lever (6) has a fixing block (611) on one side, which abuts against the rectangular groove (11), and the lever (6) has a lever handle (62) on the other side.

4. The steel frame bushing die-casting device according to claim 3, characterized in that: Guide plates (63) are installed on both sides near one end of the fixing block (611), and the distance between the two guide plates (63) matches the size of the fixing block (611).

5. The steel frame bushing die-casting device according to claim 1, characterized in that: The upper end of the fixed column (5) is provided with an expansion cylinder (7), the fixed column (5) is provided with an outer diameter thread (511), the expansion cylinder (7) is provided with an inner diameter thread (71), and the fixed column (5) and the expansion cylinder (7) are spirally connected.

6. The steel frame bushing die-casting device according to claim 1, characterized in that: The die-casting table (1) is provided with a fixed frame (12), and the fixed frame (12) is provided with a cylinder (8). The output end of the cylinder (8) is connected to the upper mold base (2).

7. The steel frame bushing die-casting device according to claim 6, characterized in that: The fixed frame (12) is provided with two sets of guide bushings (121), and each set of guide bushings (121) is provided with a guide post (9). The two sets of guide posts (9) are connected to the upper mold base (2).

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