Sleeve quick-changing structure for movable and fixed mold core pulling

Abstract

The utility model relates to a sleeve quick-changing structure for core pulling of a movable mold and a fixed mold, which comprises two oil cylinder fixing blocks, a baffle and a quick-changing sleeve, the oil cylinder fixing blocks are arranged side by side front and back, the oil cylinder fixing blocks are arranged on the fixed mold or the movable mold, and the baffle is arranged on the quick-changing sleeve. One side of each oil cylinder fixing block is provided with a core-pulling oil cylinder with a main shaft located between the two oil cylinder fixing blocks, a baffle communicated with the fixed mold or the movable mold is installed between the two oil cylinder fixing blocks, the side, close to the movable mold or the fixed mold, of the baffle is provided with a quick-changing sleeve, one end of the quick-changing sleeve is inserted into the fixed mold or the movable mold, and the other end of the quick-changing sleeve is inserted into the movable mold. A connecting rod which penetrates through the baffle and is inserted into the quick-change sleeve is installed on a main shaft of the core-pulling oil cylinder, a pulling core is installed at the tail end of the end, located on the quick-change sleeve, of the connecting rod, and the pulling core penetrates through the quick-change sleeve and is inserted into the fixed die or the movable die. The utility model has the characteristics that the sleeve can be quickly disassembled and assembled conveniently, the operation time is saved, and the mould is convenient to maintain.

Description

Technical Field

[0001] The utility model relates to the technical field of core-pulling structures, in particular to a sleeve quick-change structure for core-pulling of movable and fixed molds. Background Art

[0002] In a conventional core-pulling structure, a cover plate is usually directly docked with a sleeve, and screws are usually used to fix the two during connection. The sleeve structure is mainly used to ensure the stable operation of the needle-shaped core-pulling. When the needle-shaped core-pulling is damaged and needs to be replaced, workers need to first disassemble and assemble the cover plate. Since the sleeve is inside the fixed mold core or the movable mold core, the usual cover plate needs to be installed on the outer end face of the fixed mold core or the movable mold core. At the same time, in order to ensure the connection between the connecting shaft of the oil cylinder and the core-pulling, an opening matching the cover plate is installed on the fixed mold base or the movable mold base. The space of the opening is too small, which is not conducive to the installation and removal of screws. To solve the above problems, it is very necessary to design a structure that can hold the sleeve and ensure quick disassembly and assembly. Summary of the Invention

[0003] The technical problem to be solved by the utility model is to provide a sleeve quick-change structure for core-pulling of movable and fixed molds, which has the characteristics of facilitating the quick disassembly and assembly of the sleeve, saving operation time, and facilitating mold maintenance.

[0004] The technical solution adopted by the utility model to solve its technical problems is: to provide a sleeve quick-change structure for core-pulling of movable and fixed molds, including an oil cylinder fixing block, a baffle plate, and a quick-change sleeve. There are two oil cylinder fixing blocks, which are arranged side by side front and back. The oil cylinder fixing blocks are installed on the fixed mold or the movable mold. A core-pulling oil cylinder with a main shaft located between the two oil cylinder fixing blocks is installed on one side of the oil cylinder fixing block. A baffle plate communicating with the fixed mold or the movable mold is installed between the two oil cylinder fixing blocks. A quick-change sleeve is arranged on the side of the baffle plate close to the movable mold or the fixed mold. One end of the quick-change sleeve is inserted into the fixed mold or the movable mold, and the other end abuts against the baffle plate. A connecting rod passing through the baffle plate and inserted into the quick-change sleeve is installed on the main shaft of the core-pulling oil cylinder. A core-pulling is installed at the end of one end of the connecting rod located in the quick-change sleeve. The core-pulling passes through the quick-change sleeve and is inserted into the fixed mold or the movable mold. A sleeve is sleeved on the core-pulling. One end of the sleeve abuts against the quick-change sleeve, and the end of the core-pulling passes through the sleeve.

[0005] In this technical solution, a quick-change sleeve for transmitting pressure is arranged between the baffle plate and the sleeve, which greatly facilitates the disassembly and assembly of the core-pulling structure, enables the baffle plate to be installed on the outside of the movable mold or the fixed mold, greatly increases the operation space during the disassembly and assembly of the fixing screws, and facilitates the operation of workers.

[0006] As a supplement to the present technical solution, the baffle and the oil cylinder fixing block are staggered, and the two sides of the baffle are fitted with the inner sides of the two oil cylinder fixing blocks. The above design can make the structure more compact, reduce the space occupied by the core pulling structure, and facilitate the disassembly and assembly of the baffle and the oil cylinder fixing block.

[0007] As a supplement to the present technical solution, the connecting rod is provided with a cutout on the upper side of one end of the quick-change sleeve, and a pressure plate for supplementing the cutout is installed on the cutout, and a T-shaped mounting groove is formed between the pressure plate and the cutout. The end at which the core pulling and the connecting rod are connected adopts a docking structure with a circle of annular protrusions on the outer ring, and the T-shaped mounting groove wraps the docking structure of the core pulling. By setting the cutout and the pressure plate, it is convenient to fix the core pulling and the connecting rod to facilitate pulling out the core.

[0008] As a supplement to the technical solution, an outwardly protruding limiting step is provided on the outer ring of one end of the sleeve and the quick-change sleeve, and the installation position of the sleeve is limited by providing the limiting step.

[0009] As a supplement to the present technical solution, a sensor installation panel is installed at the front portion of the lower end surface of the core-pulling cylinder, and two sensors with contact heads facing backwards are installed side by side on the lower end surface of the sensor installation panel. Two guide seats are installed side by side on the left and right sides of the lower side of the core-pulling cylinder, and contact shafts parallel to the main axis of the core-pulling cylinder are installed in the two guide seats. Two contact cams corresponding to the two sensors are arranged on the contact shaft, and one end of the contact shaft is connected to the main axis of the core-pulling cylinder through a connecting frame.

[0010] Beneficial effects: The utility model relates to a sleeve quick-change structure for core pulling of movable and fixed molds. A quick-change sleeve for transmitting pressure is arranged between the baffle and the sleeve, which greatly facilitates the disassembly and assembly of the core pulling structure, so that the baffle can be installed on the outside of the movable mold or the fixed mold, greatly increasing the operating space during the disassembly and assembly of the fixing screws, and facilitating the operation of workers; it has the characteristics of convenient and quick disassembly and assembly of the sleeve, saving operating time, and facilitating mold maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is the front view of the utility model;

[0012] Figure 2 It is a top view of the utility model;

[0013] Figure 3 This utility model Figure 2 Section view in the AA direction;

[0014] Figure 4 This utility model Figure 3 A partial enlarged view of the middle part;

[0015] Figure 5 This is the bottom view of the utility model.

[0016] Illustration: 1. Oil cylinder fixing block, 2. Core-pulling oil cylinder, 3. Connecting rod, 4. Baffle plate, 5. Quick-change sleeve, 6. Pressure plate, 7. Core-pulling, 8. Sleeve, 9. Limiting step, 10. Contact shaft, 11. Sensor mounting panel, 12. Sensor, 13. Guide seat, 14. Contact convex ring. Specific embodiments

[0017] The following will further elaborate on the present utility model in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present utility model and not to limit the scope of the present utility model. In addition, it should be understood that after reading the content taught by the present utility model, those skilled in the art can make various changes or modifications to the present utility model, and these equivalent forms also fall within the scope defined by the appended claims of this application.

[0018] The embodiment of the present utility model relates to a sleeve quick-change structure for core-pulling of movable and fixed molds, as Figure 1 shown in FIG. -5, including an oil cylinder fixing block 1, a baffle plate 4 and a quick-change sleeve 5. There are two oil cylinder fixing blocks 1, which are arranged side by side front and back. The oil cylinder fixing block 1 is installed on the fixed mold or the movable mold. A core-pulling oil cylinder 2 with a main shaft installed on one side of the oil cylinder fixing block 1 is located between the two oil cylinder fixing blocks 1. A baffle plate 4 communicating with the fixed mold or the movable mold is installed between the two oil cylinder fixing blocks 1. A quick-change sleeve 5 is arranged on the side of the baffle plate 4 close to the movable mold or the fixed mold. One end of the quick-change sleeve 5 is inserted into the fixed mold or the movable mold, and the other end abuts against the baffle plate 4. A connecting rod 3 passing through the baffle plate 4 and inserted into the quick-change sleeve 5 is installed on the main shaft of the core-pulling oil cylinder 2. A core-pulling 7 is installed at the end of one end of the connecting rod 3 located on the quick-change sleeve 5. The core-pulling 7 passes through the quick-change sleeve 5 and is inserted into the fixed mold or the movable mold. A sleeve 8 is sleeved on the core-pulling 7. One end of the sleeve 8 abuts against the quick-change sleeve 5. The end of the core-pulling 7 passes through the sleeve 8.

[0019] In this technical solution, by arranging a quick-change sleeve 5 for transmitting pressure between the baffle plate 4 and the sleeve 8, the disassembly and assembly of the core-pulling structure are greatly facilitated, enabling the baffle plate 4 to be installed on the outside of the movable mold or the fixed mold, greatly increasing the operation space during the disassembly and assembly of the fixing screws, and facilitating the operation of workers.

[0020] As a supplement to this technical solution, the baffle plate 4 and the oil cylinder fixing block 1 are arranged in a staggered manner, and the two sides of the baffle plate 4 are attached to the inner sides of the two oil cylinder fixing blocks 1. Through the above design, the structure can be made more compact, reducing the space occupied by the core-pulling structure while also facilitating the disassembly and assembly of the baffle plate 4 and the oil cylinder fixing block 1.

[0021] As a supplement to the present technical solution, the connecting rod 3 is provided with a cutout on the upper side of one end of the quick-change sleeve 5, and a pressure plate 6 for supplementing the cutout is installed on the cutout, and a T-shaped mounting groove is formed between the pressure plate 6 and the cutout. The end where the core pulling 7 and the connecting rod 3 are connected adopts a docking structure with a circle of annular protrusions on the outer ring, and the T-shaped mounting groove wraps the docking structure of the core pulling 7. By setting the cutout and the pressure plate 6, it is convenient to fix the core pulling 7, and it is convenient for the connecting rod 3 to pull out the core pulling 7.

[0022] As a supplement to the present technical solution, an outwardly protruding limiting step 9 is provided on the outer ring of one end where the sleeve 8 and the quick-change sleeve 5 abut each other, and the installation position of the sleeve 8 is limited by providing the limiting step 9.

[0023] As a supplement to the present technical solution, a sensor installation panel 11 is installed at the front portion of the lower end surface of the core-pulling cylinder 2, and two sensors 12 with contact heads facing backwards are installed side by side on the lower end surface of the sensor installation panel 11. Two guide seats 13 are installed side by side on the left and right sides of the lower side of the core-pulling cylinder 2. A contact shaft 10 parallel to the main axis of the core-pulling cylinder 2 is installed in the two guide seats 13. Two contact cams 14 corresponding to the two sensors 12 are arranged on the contact shaft 10, and one end of the contact shaft 10 is connected to the main axis of the core-pulling cylinder 2 through a connecting frame.

[0024] Example

[0025] When installing this structure, first insert the sleeve 8 into the mounting hole. The sleeve 8 will enter the mounting hole of the movable mold core or the fixed mold core and be positioned by the limiting step 9. After completion, the end of the core pulling 7 with an annular protrusion is installed in the T-shaped mounting groove of the connecting rod 3. Then, the pressure plate 6 is used to press the core pulling 7 and dock with the connecting rod 3. After completion, the quick-change sleeve 5 is inserted into the mounting hole of the movable mold or the fixed mold and support the sleeve 8. Then, the connecting rod 3 with the core pulling 7 is inserted into the quick-change sleeve 5. At the same time, the core pulling 7 will pass through the quick-change sleeve 5 and the sleeve 8. After completing the above installation, the baffle 4 is installed. The baffle 4 supports the quick-change sleeve 5 and docks with the movable mold or the fixed mold through screws. Then, two cylinder fixing blocks 1 docking with the movable mold or the fixed mold are installed along the baffle 4, and the core pulling cylinder 2 is installed on the cylinder fixing block 1. Finally, the main shaft of the core pulling cylinder 2 is docked with the connecting rod 3 to complete the installation of the core pulling structure.

[0026] When dismantling, first open the main shaft and connecting rod 3 of the core-pulling cylinder 2, then remove the core-pulling cylinder 2, then remove the cylinder fixing block 1, then remove the baffle 4, and finally pull out the connecting rod 3, the quick-change sleeve 5 and the sleeve 8.

[0027] When producing die-casting molds, once the core-pulling 7 is bent or broken, this device can be directly removed from the mold, and the core-pulling 7 can be replaced accordingly to complete the repair. There is no need to stop the die-casting machine or remove the mold, which can greatly save the time required for repair and reduce the repair cost.

[0028] The above has introduced in detail a sleeve quick-change structure for moving and fixed die core-pulling provided by this application. Specific examples are used in this article to elaborate on the principle and implementation manner of this application. The description of the above embodiments is only used to help understand the method and its core idea of this application; at the same time, for those of ordinary skill in the art, according to the idea of this application, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to this application.

Claims

1. A sleeve quick-change structure for core pulling of a moving and fixed mold, characterized in that: The invention comprises a cylinder fixing block (1), a baffle (4) and a quick-change sleeve (5). The cylinder fixing blocks (1) are two in total and are arranged side by side in a front-to-back manner. The cylinder fixing blocks (1) are installed on a fixed mold or a movable mold. A core-pulling cylinder (2) with a main shaft located between the two cylinder fixing blocks (1) is installed on one side of the cylinder fixing blocks (1). A baffle (4) connected to the fixed mold or the movable mold is installed between the two cylinder fixing blocks (1). A quick-change sleeve (5) is arranged on the side of the baffle (4) close to the movable mold or the fixed mold. The quick-change sleeve (5) is One end is inserted into the fixed mold or the movable mold, and the other end is pressed against the baffle (4). A connecting rod (3) passing through the baffle (4) and inserted into the quick-change sleeve (5) is installed on the main shaft of the core-pulling cylinder (2). A core-pulling (7) is installed on the end of one end of the connecting rod (3) located on the quick-change sleeve (5). The core-pulling (7) passes through the quick-change sleeve (5) and is inserted into the fixed mold or the movable mold. A sleeve (8) is sleeved on the core-pulling (7). One end of the sleeve (8) is pressed against the quick-change sleeve (5), and the end of the core-pulling (7) passes through the sleeve (8).

2. A sleeve quick-change structure for core pulling of a moving and fixed mold according to claim 1, characterized in that: The baffle plate (4) and the oil cylinder fixing block (1) are arranged in a staggered manner, and the two sides of the baffle plate (4) are in close contact with the inner sides of the two oil cylinder fixing blocks (1).

3. The sleeve quick-change structure for core pulling of a movable and fixed mold according to claim 1, characterized in that: The connecting rod (3) is provided with a cutout on the upper side of one end of the quick-change sleeve (5), and a pressure plate (6) for supplementing the cutout is installed on the cutout, and a T-shaped mounting groove is formed between the pressure plate (6) and the cutout. The end where the core puller (7) and the connecting rod (3) are connected adopts a docking structure with a circle of annular protrusions on the outer ring, and the T-shaped mounting groove wraps the docking structure of the core puller (7).

4. The sleeve quick-change structure for core pulling of a movable and fixed mold according to claim 1, characterized in that: An outwardly protruding limiting step (9) is provided on the outer ring of one end where the sleeve (8) and the quick-change sleeve (5) abut against each other.

5. The sleeve quick-change structure for core pulling of a movable and fixed mold according to claim 1, characterized in that: A sensor installation panel (11) is installed at the front of the lower end face of the core-pulling cylinder (2), and two sensors (12) with contact heads facing backwards are installed side by side on the lower end face of the sensor installation panel (11). Two guide seats (13) are installed side by side on the left and right sides of the lower side of the core-pulling cylinder (2), and a contact shaft (10) parallel to the main axis of the core-pulling cylinder (2) is installed in the two guide seats (13). Two contact convex rings (14) corresponding to the two sensors (12) are arranged on the contact shaft (10), and one end of the contact shaft (10) is connected to the main axis of the core-pulling cylinder (2) through a connecting frame.

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