Mold core-pulling device with self-locking structure

Abstract

The utility model discloses a mould core-pulling device with a self-locking structure, which comprises a main body, a sliding table is fixedly arranged on the inner bottom surface of the main body, a core-pulling module is arranged on the other side of the upper end surface of the sliding table in a sliding manner, a fixed module is fixedly arranged on the front end surface of the core-pulling module, and self-locking modules are fixedly arranged on the inner walls of the two sides of the main body. The core pulling module comprises a sliding self-locking table, the two self-locking modules each comprise a fixed box and a rotating column, rotating shafts are rotationally arranged on the upper end faces of the two fixed boxes in a penetrating mode, and rotating rods are arranged on the inner bottom faces of the two fixed boxes in a sliding mode. According to the utility model, the sliding table fixed on the inner bottom surface of the main body is convenient for the core-pulling module to slide inside, the fixed module is fixed on one side of the core-pulling module, the fixed module can slide when the core-pulling module slides, and the self-locking modules fixed on the two sides of the main body can lock the core-pulling module, so that the core-pulling module cannot move.

Description

Technical Field

[0001] The utility model relates to the field of mold core pulling devices, in particular to a mold core pulling device with a self-locking structure. Background Art

[0002] The mold core is a component used to form the internal structure of the casting in the casting mold. It is installed in the mold cavity before casting. After the molten metal is poured in and condensed, it is withdrawn from the mold cavity before the mold is opened to form a cavity inside the casting. Since the core needs to be withdrawn before the mold is opened, there is no fixed locking mechanism.

[0003] Existing mold core pulling mechanisms usually have the following two forms: one is to prevent the core from retreating during the pouring process, relying on the hydraulic thrust of the cylinder to lock the core position. In this case, a cylinder with a larger cylinder diameter needs to be selected, which increases the product cost and occupies a large space, affecting the layout of other components. Another method is to add a hydraulically controlled one-way valve to control the cylinder to prevent the core from retreating during the die-casting process. Due to the large reaction force during the die-casting process, the connection part of the one-way valve is easily damaged and leaks oil, resulting in a short service life and frequent replacement, which affects the production schedule and has high maintenance costs.

[0004] Therefore, those skilled in the art provide a mold core pulling device with a self-locking structure to solve the problems raised in the above background technology. Utility Model Content

[0005] In view of the defects in the prior art, the utility model provides a mold core pulling device with a self-locking structure. The self-locking modules fixed on both sides of the main body can lock the core pulling module so that it cannot move. The main structure of the lock core module includes a sliding self-locking platform. A limiting block is fixed on the bottom surface of the sliding self-locking platform, so that the locking structure of the self-locking module can slide inside. The fixed upper cover at the upper end of the main body can protect the internal structure. When there is a problem with the internal structure, the fixed upper cover can be easily opened to repair the internal parts.

[0006] Preferably, a mold core pulling device with a self-locking structure comprises a main body, a sliding table is fixedly arranged on the inner bottom surface of the main body, a core pulling module is slidably arranged on the other side of the upper end surface of the sliding table, a fixing module is fixedly arranged on the front end surface of the core pulling module, and self-locking modules are fixedly arranged on the inner walls on both sides of the main body;

[0007] The core pulling module includes a sliding self-locking platform, and the two self-locking modules each include a fixed box and a rotating column. The upper end surfaces of the two fixed boxes are both rotatably provided with a rotating shaft, the inner bottom surfaces of the two fixed boxes are both slidably provided with a rotating rod, and the lower end surfaces of the two rotating rods are both rotatably provided with a rotating column. The sliding table fixed on the inner bottom surface of the main body makes it convenient for the core pulling module to slide inside. A fixed module is fixed on one side of the core pulling module, so that the fixed module can slide when the core pulling module slides, and the self-locking modules fixed on both sides of the main body can lock the core pulling module so that it cannot move. The main structure of the lock core module includes a sliding self-locking table, and a limiting block is fixed on the inner bottom surface of the sliding self-locking table, so that the locking structure of the self-locking module can slide inside. The main structure of the self-locking module includes a fixed box and a rotating column, and the fixed box can be fixed to the inner wall of the main body. The rotating shaft passing through the upper end of the fixed box can make the rotating rod slide on the inner bottom surface of the fixed box, and the rotating rod is connected to the rotating column, so that the rotating column can slide inside the sliding self-locking table, and when the rotating column slides to a fixed position, the sliding self-locking table can be locked, so that the sliding self-locking table cannot move backward.

[0008] Preferably, the main body is fixedly provided with clamping blocks on both sides, and the upper end surface of the main body is clamped with a fixed upper cover. The clamping blocks fixed on both sides of the main body can clamp and fix the mold core pulling device on the upper end of the mold, and the fixed upper cover on the upper end of the main body can protect the internal structure. When there is a problem with the internal structure, the fixed upper cover can be easily opened to repair the internal parts.

[0009] Preferably, a fixed enclosure is fixedly provided on the rear end surface of the main body, and a push rod is slidably provided on the rear end surface of the main body. The fixed enclosure at the rear end of the main body allows the push rod at the rear end of the main body to slide inside it, making it slide more smoothly. One side of the push rod is connected to the core-pulling module inside the main body. When the sliding self-locking platform cannot move backward, the push rod can be used to push the sliding self-locking platform to slide forward to release the lock so that it can slide backward.

[0010] Preferably, sliders are fixedly arranged inside the two sides of the sliding table, and a spring box is fixedly arranged on one side of the upper end surface of the sliding table. The sliders on both sides of the sliding table can be connected to the core pulling module to make it slide more smoothly, and the spring box fixed on the upper end of the sliding table is connected to the core pulling module, and the spring inside the spring box enables the spring box to push the core pulling module to move backward.

[0011] Preferably, a fixing plate is fixedly provided on one side of the upper end surface of the sliding self-locking platform, a threaded plate is fixedly provided on the other side of the upper end surface of the sliding self-locking platform, and two connecting rods are fixedly provided on one side of the upper end of the fixing plate. The fixing plate fixed on the upper end of the sliding self-locking platform is fixed to the fixing module, so that the sliding self-locking platform can drive the fixing module to move, and the threaded plate fixed on the other side of the upper end of the sliding self-locking platform can be threadedly fixed to the push rod, which is convenient for disassembly of the push rod and the threaded plate. The two connecting rods connect the fixing plate and the threaded plate, so that the fixing plate and the threaded plate are fixed more firmly.

[0012] Preferably, the fixing module includes a sliding rod, a connecting platform is fixedly provided on one side of the sliding rod, and a fixing hole is provided at the front end of the connecting platform. The main structure of the fixing module includes a sliding rod, which can be connected to a fixing plate in the core pulling module so that the sliding rod can slide at the front end of the main body, the sliding rod is fixed to the connecting platform, a fixing hole is provided at the upper end of the connecting platform, the connecting platform can be connected to the mold core, and the fixing hole facilitates the fixing of the mold core so that the mold core will not move backward when in use and is convenient for core pulling.

[0013] The beneficial effects of the utility model are embodied in:

[0014] 1. The utility model proposes a mold core pulling device with a self-locking structure. The main structures of the self-locking module include a fixed box and a rotating column. The fixed box can be fixed to the inner wall of the main body. The rotating shaft passing through the upper end of the fixed box can make the rotating rod slide on the inner bottom surface of the fixed box. The rotating rod is connected to the rotating column so that the rotating column can slide inside the sliding self-locking table. When the rotating column slides to a fixed position, the sliding self-locking table can be locked so that the sliding self-locking table cannot move backward, and the fixed module fixed to the core pulling module cannot move backward.

[0015] 2. The utility model proposes a mold core pulling device with a self-locking structure. The fixed plate and the fixed module fixed on the upper end of the sliding self-locking table are fixed, so that the sliding self-locking table can drive the fixed module to move. The fixed module can be connected to the mold core, and different mold cores can be replaced when making different parts. The main structure of the locking core module includes a sliding self-locking table, and a limiting block is fixed on the inner bottom surface of the sliding self-locking table, so that the locking structure of the self-locking module can slide inside. The position of the limiting block is specific, and the mold core can be fixed and core pulled more conveniently. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0017] Figure 1 It is a main schematic diagram of the utility model;

[0018] Figure 2 It is a rear view schematic diagram of the utility model;

[0019] Figure 3 It is a top axial schematic diagram of the main structure of the utility model;

[0020] Figure 4 It is a schematic diagram of the main visual axis side of the main structure of the utility model;

[0021] Figure 5 It is a schematic top view of the main structure of the utility model.

[0022] In the accompanying drawings, 1, main body; 2, snap-fit ​​fixing block; 3, fixed upper cover; 4, spring box; 5, fixed surround; 6, push rod; 7, fixed module; 8, self-locking module; 9, core-pulling module; 10, sliding table; 11, slider; 701, sliding rod; 702, fixing hole; 703, connecting table; 801, fixing box; 802, rotating shaft; 803, rotating rod; 804, rotating column; 901, sliding self-locking table; 902, fixing plate; 903, connecting rod; 904, threaded plate. DETAILED DESCRIPTION

[0023] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0024] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by technicians in the field to which the utility model belongs.

[0025] Reference Figure 1-5 The utility model provides an embodiment: a mold core pulling device with a self-locking structure, comprising a main body 1, a sliding table 10 is fixedly arranged on the inner bottom surface of the main body 1, a core pulling module 9 is slidably arranged on the other side of the upper end surface of the sliding table 10, a fixing module 7 is fixedly arranged on the front end surface of the core pulling module 9, and self-locking modules 8 are fixedly arranged on the inner walls on both sides of the main body 1;

[0026] The core pulling module 9 includes a sliding self-locking platform 901, and the two self-locking modules 8 each include a fixed box 801 and a rotating column 804. The upper end surfaces of the two fixed boxes 801 are both penetrated by a rotating shaft 802 for rotation. The inner bottom surfaces of the two fixed boxes 801 are both slidably provided with a rotating rod 803, and the lower end surfaces of the two rotating rods 803 are both rotatably provided with a rotating column 804.

[0027] The sliding table 10 fixed on the inner bottom surface of the main body 1 facilitates the sliding of the core pulling module 9 inside. A fixed module 7 is fixed on one side of the core pulling module 9. When the core pulling module 9 slides, the fixed module 7 can slide. The self-locking modules 8 fixed on both sides of the main body 1 can lock the core pulling module 9 so that it cannot move. The main structure of the core pulling module 9 includes a sliding self-locking table 901. A limiting block is fixed on the inner bottom surface of the sliding self-locking table 901, which can make the locking structure of the self-locking module 8 slide inside. The main structures of block 8 include a fixed box 801 and a rotating column 804. The fixed box 801 can be fixed to the inner wall of the main body 1. The rotating shaft 802 passing through the upper end of the fixed box 801 allows the rotating rod 803 to slide on the inner bottom surface of the fixed box 801. The rotating rod 803 is connected to the rotating column 804, so that the rotating column 804 can slide inside the sliding self-locking platform 901. When the rotating column 804 slides to a fixed position, the sliding self-locking platform 901 can be locked so that the sliding self-locking platform 901 cannot move backward.

[0028] Reference Figure 1 , fixed blocks 2 are fixedly provided on both sides of the main body 1, a fixed upper cover 3 is fixedly provided on the upper end surface of the main body 1, a fixed surround 5 is fixedly provided on the rear end surface of the main body 1, a push rod 6 is slidably provided through the rear end surface of the main body 1, sliders 11 are fixedly provided inside both sides of the sliding platform 10, and a spring box 4 is fixedly provided on one side of the upper end surface of the sliding platform 10.

[0029] The clamping fixing blocks 2 fixed on both sides of the main body 1 can make the mold core pulling device clamped and fixed on the upper end of the mold. The fixed upper cover 3 on the upper end of the main body 1 can protect the internal structure. When there is a problem with the internal structure, the fixed upper cover 3 can be conveniently opened to repair the internal parts. The fixed surround 5 at the rear end of the main body 1 can make the push rod 6 at the rear end of the main body 1 slide inside it, so that it slides more smoothly. One side of the push rod 6 is connected to the core pulling module 9 inside the main body 1. When the sliding self-locking platform 901 cannot move backward, the sliding self-locking platform 901 can be pushed forward by the push rod 6 to unlock it so that it can slide backward. The sliders 11 on both sides of the sliding platform 10 can be connected to the core pulling module 9, so that it slides more smoothly. The spring box 4 fixed on the upper end of the sliding platform 10 is connected to the core pulling module 9, and the spring inside the spring box 4 enables the spring box 4 to push the core pulling module 9 to move backward.

[0030] Reference Figure 3 A fixing plate 902 is fixedly provided on one side of the upper end surface of the sliding self-locking platform 901 , a threaded plate 904 is fixedly provided on the other side of the upper end surface of the sliding self-locking platform 901 , and two connecting rods 903 are fixedly provided on one side of the upper end of the fixing plate 902 .

[0031] The fixed plate 902 and the fixed module 7 fixed on the upper end of the sliding self-locking platform 901 are fixed so that the sliding self-locking platform 901 can drive the fixed module 7 to move, and the threaded plate 904 fixed on the other side of the upper end of the sliding self-locking platform 901 can be threadedly fixed to the pushing rod 6, so that the pushing rod 6 and the threaded plate 904 can be easily disassembled. The two connecting rods 903 connect the fixed plate 902 and the threaded plate 904, so that the fixed plate 902 and the threaded plate 904 are fixed more firmly.

[0032] Reference Figure 5 The fixing module 7 includes a sliding rod 701 , a connecting platform 703 is fixedly provided on one side of the sliding rod 701 , and a fixing hole 702 is opened at the front end of the connecting platform 703 .

[0033] The main structure of the fixed module 7 includes a sliding rod 701, which can be connected to the fixed plate 902 in the core pulling module 9, so that the sliding rod 701 can slide at the front end of the main body 1, and the sliding rod 701 is fixed to the connecting platform 703. A fixing hole 702 is provided at the upper end of the connecting platform 703, and the connecting platform 703 can be connected to the mold core. The fixing hole 702 is convenient for fixing the mold core, so that the mold core will not move backward when in use and it is convenient to pull the core.

[0034] Working principle: When in use, the connecting platform 703 can be connected to the mold core, and the fixing hole 702 is convenient for fixing the mold core. The fixed plate 902 fixed on the upper end of the sliding self-locking platform 901 is fixed to the fixed module 7, so that the sliding self-locking platform 901 can drive the fixed module 7 to move. The main structures of the self-locking module 8 include a fixed box 801 and a rotating column 804. The rotating shaft 802 passing through the upper end of the fixed box 801 allows the rotating rod 803 to slide on the inner bottom surface of the fixed box 801. The rotating rod 803 is connected to the rotating column 804, so that the rotating column 804 can slide inside the sliding self-locking platform 901. When the rotating column 804 slides to a fixed position, the sliding self-locking platform 901 can be locked, so that the sliding self-locking platform 901 cannot move backward, and the mold core cannot move backward when making the mold.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.

Claims

1. A mold core pulling device with a self-locking structure, comprising a main body (1), characterized in that: A sliding platform (10) is fixedly arranged on the inner bottom surface of the main body (1), a core pulling module (9) is slidably arranged on the other side of the upper end surface of the sliding platform (10), a fixing module (7) is fixedly arranged on the front end surface of the core pulling module (9), and self-locking modules (8) are fixedly arranged on the inner walls on both sides of the main body (1); The core pulling module (9) includes a sliding self-locking platform (901), and the two self-locking modules (8) each include a fixed box (801) and a rotating column (804). The upper end surfaces of the two fixed boxes (801) are each provided with a rotating shaft (802) that is rotatably disposed therethrough, the inner bottom surfaces of the two fixed boxes (801) are each provided with a rotating rod (803) that is slidably disposed thereon, and the lower end surfaces of the two rotating rods (803) are each provided with a rotating column (804) that is rotatably disposed thereon.

2. A mold core pulling device with a self-locking structure according to claim 1, characterized in that: The two sides of the main body (1) are fixedly provided with snap-fit ​​fixing blocks (2), and the upper end surface of the main body (1) is snap-fitted with a fixed upper cover (3).

3. The mold core pulling device with a self-locking structure according to claim 1, characterized in that: A fixed enclosure (5) is fixedly arranged on the rear end surface of the main body (1), and a push rod (6) is slidably arranged through the rear end surface of the main body (1).

4. The mold core pulling device with a self-locking structure according to claim 1, characterized in that: Slide blocks (11) are fixedly arranged inside the two sides of the sliding platform (10), and a spring box (4) is fixedly arranged on one side of the upper end surface of the sliding platform (10).

5. The mold core pulling device with a self-locking structure according to claim 1, characterized in that: A fixing plate (902) is fixedly provided on one side of the upper end surface of the sliding self-locking platform (901), a threaded plate (904) is fixedly provided on the other side of the upper end surface of the sliding self-locking platform (901), and two connecting rods (903) are fixedly provided on one side of the upper end of the fixing plate (902).

6. The mold core pulling device with a self-locking structure according to claim 1, characterized in that: The fixing module (7) comprises a sliding rod (701), a connecting platform (703) is fixedly arranged on one side of the sliding rod (701), and a fixing hole (702) is provided at the front end of the connecting platform (703).

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