Sand core forming mold with precise guide mechanism

Abstract

The utility model relates to the technical field of mould processing, and particularly discloses a sand core forming mould with a precise guide mechanism, which comprises a machine frame, a lower mould and a cylinder, the output end of the cylinder is fixedly connected with an upper mould through a linkage column, the lower end of the upper mould is fixedly connected with a plurality of guide columns through springs, and the lower end of the upper mould is connected with a guide block in a buckling manner. A plurality of inserting holes and ladder openings are formed in the upper end of the lower die, a guide rod is fixedly connected to the inner wall of the machine frame, the outer wall of the guide rod is sleeved with a sliding pipe, and the sliding pipe is in threaded connection with the upper die or the lower die through a screw; the guide mold has the beneficial effects that the sliding pipe moves on the guide rod, so that a machine can be stably guided during operation, and the guide post and the guide block play a role in proofreading, so that the process of repeated pasting and proofreading before use is omitted, and meanwhile, the use effect of the guide mold is also enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of mold processing, in particular to a sand core forming mold with a precision guide mechanism. Background Art

[0002] Sand core forming dies are tools used in the foundry industry, primarily for preparing sand cores. Sand cores are crucial components in the casting process, forming cavities or channels within the casting. They provide support and structure within the casting. The design and manufacture of sand core forming dies are crucial to ensuring the quality and performance of castings.

[0003] Chinese patent CN217617304U discloses a mold with a guide mechanism, comprising a base plate, a support plate fixedly connected to the base plate, a fixed plate fixedly connected to the support plate, a cylinder fixedly connected to the fixed plate, a drive rod of the cylinder slidably connected to the fixed plate, a connecting plate fixedly connected to the drive rod, the connecting plate in contact with the support plate, a connecting groove provided on the connecting plate, a connecting rod slidably connected to the interior of the connecting groove, and a spring provided on the outside of the connecting rod. The utility model is designed to function as a cylinder, so that the cylinder can drive the upper mold to move and close the mold, and when the connecting plate moves, it will drive the fixed rod to slide in the workbench, and the movement of the fixed rod can guide the movement of the connecting plate, and the connecting plate can drive the slider to slide in the slide groove, which can further guide the movement of the connecting plate, thereby making the movement of the upper mold driven by the connecting plate more precise and improving the guiding accuracy.

[0004] However, in the above patent, the upper and lower molds need to be fitted before the machine is operated to confirm the positions of the upper and lower molds. However, the position of the lower mold is easy to shake, resulting in the need for repeated fitting and calibration, which reduces the effectiveness of the guide mold. Utility Model Content

[0005] The purpose of the present invention is to provide a sand core forming mold with a precision guiding mechanism to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a sand core forming mold with a precision guide mechanism, comprising: a machine frame, a lower mold and a cylinder, the output end of the cylinder is fixedly connected to the upper mold through a linkage column, the lower end of the upper mold is fixedly connected to a plurality of guide columns through a spring, the lower end of the upper mold is snap-connected to a guide block, the upper end of the lower mold is provided with a plurality of jacks and ladder openings, the inner wall of the machine frame is fixedly connected to a guide rod, the outer wall of the guide rod is sleeved with a sliding tube, and the sliding tube is threadedly connected to the upper mold or the lower mold by a screw.

[0007] Preferably, the lower mold is fixedly connected to the inner wall of the lower end of the machine frame, the upper end of the lower mold is provided with a fixing groove 1, the lower end of the spring is fixedly connected to the guide block or guide column, the upper end of the spring is fixedly connected to the upper mold, the lower end of the upper mold is provided with a fixing groove 2, the upper end of the linkage column and the output end of the cylinder are fixedly connected, the lower end of the linkage column is fixedly connected to the upper mold, and the cylinder and the upper end of the machine frame are fixedly connected.

[0008] Preferably, the sizes of the plurality of jacks are the same as those of the plurality of guide posts, and the positions are symmetrical, and the plurality of jacks are distributed between the inner wall of the fixing groove 1 and the outer wall of the lower mold.

[0009] Preferably, the ladder openings are distributed at the four corners of the upper end of the lower mold, the size and number of the guide blocks are the same as the ladder openings, and two fixing blocks and a spring are fixedly installed on the upper end of the guide blocks.

[0010] Preferably, the positions of the first fixing groove and the second fixing groove are symmetrical to each other.

[0011] Preferably, the upper mold and the lower mold have the same length and width, there are two guide rods and four sliding tubes, each guide rod is sleeved with two sliding tubes, and two sliding tubes are threadedly connected on the same side of the upper mold and the lower mold.

[0012] Compared with the prior art, the beneficial effect of the present invention is that the movement of the sliding tube on the guide rod allows the machine to be stably guided during operation, and the guide column and guide block play a role in calibration, thereby eliminating the process of repeated pasting and calibration before use, and also enhancing the use effect of the guide mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0014] Figure 2 This is a bottom view of the structure of the utility model;

[0015] Figure 3 This is a left side schematic diagram of the structure of the utility model;

[0016] Figure 4 This is a three-dimensional schematic diagram of the lower mold of the utility model;

[0017] Figure 5 This is a three-dimensional schematic diagram of the fixing block and guide column of the utility model;

[0018] Figure 6 For this utility model Figure 4 A magnified view of the structure of area A in the middle.

[0019] In the figure: 1. Machine frame; 2. Cylinder; 3. Linkage column; 4. Upper die; 5. Lower die; 6. Guide rod; 7. Sliding tube; 8. Guide block; 9. Guide column; 10. Socket; 11. Ladder opening; 12. Screw; 13. Fixing block; 14. Spring; 15. Fixing slot 1; 16. Fixing slot 2. DETAILED DESCRIPTION

[0020] In order to clearly and completely describe the purpose and technical solution of the present invention and make its advantages more clearly understood, the following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only part of the embodiments of the present invention, not all of them, and are only used to explain the embodiments of the present invention and are not intended to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figures 1-6 The utility model provides a technical solution: a sand core forming mold with a precision guide mechanism, comprising: a machine frame 1, a lower mold 5 and a cylinder 2, the upper end of the cylinder 2 and the machine frame 1 are fixedly connected, the output end of the cylinder 2 is fixedly connected to a linkage column 3, the lower end of the linkage column 3 is fixedly connected to an upper mold 4, when the cylinder 2 is running, the upper mold 4 can be driven up and down by the linkage column 3, the lower end of the upper mold 4 is fixedly connected to a plurality of guide columns 9 through a spring 14, the lower end of the upper mold 4 is snap-connected with a guide block 8, the upper end of the guide block 8 is fixedly installed with two fixed blocks 13 and a spring Spring 14, the upper end of the lower mold 5 is provided with a number of jacks 10 and ladder openings 11, the ladder openings 11 are distributed at the four corners of the upper end of the lower mold 5, the size and number of the guide blocks 8 are the same as the ladder openings 11, the inner wall of the machine frame 1 is fixedly connected with a guide rod 6, two guide rods 6 are provided, the outer wall of the guide rod 6 is sleeved with a sliding tube 7, four sliding tubes 7 are provided, each guide rod 6 is sleeved with two sliding tubes 7, the sliding tube 7 is threadedly connected to the upper mold 4 or the lower mold 5 by a screw 12. When the upper mold 4 moves downward, it will move vertically under the restriction of the guide rod 6 without offset.

[0022] The lower mold 5 is fixedly connected to the inner wall of the lower end of the machine frame 1 to prevent the lower mold 5 from shaking during machine operation. A fixing groove 15 is provided at the upper end of the lower mold 5. The lower end of the spring 14 is fixedly connected to the guide block 8 or the guide column 9. When the upper mold 4 moves down and fits with the lower mold 5, the spring 14 will play a buffering role to prevent the guide column 9 and the guide block 8 from being seriously damaged. The upper end of the spring 14 is fixedly connected to the upper mold 4 to fix the guide column 9. The lower end of the upper mold 4 is provided with a fixing groove 2 16 to fix the corresponding mold.

[0023] The sizes of several jacks 10 are the same as those of several guide posts 9 and are symmetrically positioned. When the upper mold 4 and the lower mold 5 are fitted together, the guide posts 9 can be inserted into the jacks 10 to serve as a proofreading tool. Several jacks 10 are distributed between the inner wall of the fixing groove 15 and the outer wall of the lower mold 5 to avoid affecting the processing of the mold.

[0024] The positions of the first fixing groove (15) and the second fixing groove (16) are symmetrical to each other, which is beneficial to the stability during processing.

[0025] The upper die 4 and the lower die 5 have the same length and width. Two sliding tubes 7 are threadedly connected to the same side of the upper die 4 and the lower die 5 to enhance the guiding performance.

[0026] During actual use, the sand core forming mold is installed in the fixing groove 15 and the fixing groove 2 16, and then the cylinder 2 is started. The output end of the cylinder 2 drives the linkage column 3 and the upper mold 4 to move downward. While moving, due to the limiting effect of the sliding tube 7 and the guide rod 6, it will only maintain vertical movement without offset. When the upper mold 4 and the lower mold 5 are about to fit together, the guide column 9 and the guide block 8 will first contact the lower mold 5, and then the spring 14 will slow down the impact force when the upper mold 4 and the lower mold 5 contact, thereby extending the service life of the mold. When the mold is closed, the cylinder 2 drives the linkage column 3 and the upper mold 4 to move vertically upward. During the entire process of mechanical operation, the upper mold 4 and the lower mold 5 will not have relative offset.

[0027] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sand core forming mold with a precision guide mechanism, characterized in that: The sand core forming mold with a precision guide mechanism comprises: a machine frame (1), a lower mold (5) and a cylinder (2); the output end of the cylinder (2) is fixedly connected to the upper mold (4) through a linkage column (3); the lower end of the upper mold (4) is fixedly connected to a plurality of guide columns (9) through a spring (14); the lower end of the upper mold (4) is snap-connected to a guide block (8); the upper end of the lower mold (5) is provided with a plurality of jacks (10) and a ladder opening (11); the inner wall of the machine frame (1) is fixedly connected to a guide rod (6); the outer wall of the guide rod (6) is sleeved with a sliding tube (7); the sliding tube (7) is threadedly connected to the upper mold (4) or the lower mold (5) through a screw (12).

2. A sand core forming mold with a precision guide mechanism according to claim 1, characterized in that: The lower die (5) is fixedly connected to the inner wall of the lower end of the machine frame (1); the upper end of the lower die (5) is provided with a fixing groove (15); the lower end of the spring (14) is fixedly connected to the guide block (8) or the guide column (9); the upper end of the spring (14) is fixedly connected to the upper die (4); the lower end of the upper die (4) is provided with a fixing groove (16); the upper end of the linkage column (3) is fixedly connected to the output end of the cylinder (2); the lower end of the linkage column (3) is fixedly connected to the upper die (4); and the cylinder (2) and the upper end of the machine frame (1) are fixedly connected.

3. The sand core forming mold with a precision guide mechanism according to claim 1, characterized in that: The sizes of the plurality of jacks (10) are the same as those of the plurality of guide posts (9), and the positions are symmetrical. The plurality of jacks (10) are distributed between the inner wall of the fixing groove (15) and the outer wall of the lower die (5).

4. The sand core forming mold with a precision guide mechanism according to claim 1, characterized in that: The ladder openings (11) are distributed at the four corners of the upper end of the lower mold (5). The size and number of the guide blocks (8) are the same as those of the ladder openings (11). Two fixed blocks (13) and a spring (14) are fixedly installed on the upper end of the guide blocks (8).

5. The sand core forming mold with a precision guide mechanism according to claim 2, characterized in that: The positions of the fixing groove 1 (15) and the fixing groove 2 (16) are symmetrical to each other.

6. The sand core forming mold with a precision guide mechanism according to claim 1, characterized in that: The upper mold (4) and the lower mold (5) have the same length and width, are provided with two guide rods (6), and are provided with four sliding tubes (7). Each guide rod (6) is sleeved with two sliding tubes (7), and the same side of the upper mold (4) and the lower mold (5) are threadedly connected to two sliding tubes (7).

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