Small slide structure formed by plastic part mold

Abstract

The utility model discloses a small slide structure for plastic part mould forming, which comprises a lower mould core arranged in a lower mould plate and an upper mould core arranged in an upper mould plate, a slide bottom plate is arranged in the lower mould core, the top of the slide bottom plate is movably connected with two small slides through a slide upper pressing plate, an oil cylinder is fixed on one side of the lower mould plate, and the oil cylinder is fixed on the other side of the lower mould plate. The telescopic end of the oil cylinder penetrates through the lower die plate and then is inserted into the lower portion of the lower die core, the telescopic end of the oil cylinder is connected with a V-shaped moving block, the two sides of the V-shaped moving block are connected with movable square shifting blocks through small track assemblies, and two moving grooves are formed in the top face of the slide bottom plate. The V-shaped moving block connected with the oil cylinder is designed, the V-shaped moving block is driven to move when the oil cylinder stretches out and draws back, the V-shaped moving block drives the square shifting block to move towards the middle through the small rail assembly, and therefore the two small slides stably move towards the middle. And the small slide is separated from the product.

Description

Technical Field

[0001] The utility model relates to the field of plastic part mold forming, in particular to a small sliding position structure for plastic part mold forming. Background Art

[0002] Plastic mold is the abbreviation of a combined mold used for compression molding, extrusion molding, injection molding, blow molding and low-foaming molding. The coordinated changes of the mold convex and concave molds and the auxiliary molding system can process a series of plastic parts of different shapes and sizes. The mold is a tool for producing plastic products; it is also a tool that gives plastic products a complete structure and precise dimensions. Injection molding is a processing method used in mass production of certain parts with complex shapes. Specifically, it refers to the injection of heated and melted plastic into the mold cavity by the injection molding machine under high pressure, and after cooling and solidification, a molded product is obtained.

[0003] During the use of the mold, some complex structures need to be made into slides, and the molds need to be opened and closed to demold or reset. The conventional slide method is to use inclined guide pins to drive the slides, but it is not suitable for some small slide molds. The main problem of small inclined guide pins is that they are not strong enough and are slender. They are easily deformed or even broken when the mold is closed under force, and the broken part will damage the mold during the closing process. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, the utility model provides a small slide structure for forming a plastic part mold, which enables two small slides to stably move toward the middle and separate the small slides from the product.

[0005] To solve the above technical problems, the utility model provides the following technical solutions: a small slide structure for plastic parts mold forming, comprising a lower mold core arranged in the lower mold plate and an upper mold core arranged in the upper mold plate, a slide bottom plate is arranged inside the lower mold core, and the top of the slide bottom plate is movably connected to two small slides through an upper slide pressure plate, a cylinder is fixed on one side of the lower mold plate, the telescopic end of the cylinder passes through the lower mold plate and is inserted under the lower mold core, the telescopic end of the cylinder is connected to a V-shaped moving block, and movable square shift blocks are connected on both sides of the V-shaped moving block through a small track assembly, two moving grooves are provided on the top surface of the slide bottom plate, and a shift rod that passes through the moving groove and is inserted into the inside of the small slide is fixed on the top of the square shift block, and the small slide is indirectly driven to move when the V-shaped moving block moves through the cooperation of the small track assembly between the V-shaped moving block and the square shift block.

[0006] As a preferred technical solution of the utility model, an inclined surface is provided on one side opposite to the two small slides, and an extrusion block cooperating with the inclined surface is fixed to the bottom end of the upper die core.

[0007] As a preferred technical solution of the utility model, a limiting groove is provided at the ridge below the side of the upper pressure plate of the slide relative to the small slide, and limiting flanges cooperating with the limiting groove are provided at the bottom of both sides of the small slide.

[0008] As a preferred technical solution of the utility model, the small track assembly includes guide grooves and guide strips, guide grooves are provided on both sides of the V-shaped moving block relative to the square shift block, guide strips engaged with the guide grooves are provided on one side of the square shift block relative to the V-shaped moving block, and inclined surfaces cooperating with the square shift block are provided on both sides of the V-shaped moving block.

[0009] As a preferred technical solution of the utility model, a T-shaped circular stepped shaft is fixed to the telescopic end of the oil cylinder, and a T-shaped connecting groove is opened at the center of one side of the V-shaped moving block facing the oil cylinder.

[0010] As a preferred technical solution of the utility model, a positioning block is fixed inside the lower template.

[0011] Compared with the prior art, the utility model can achieve the following beneficial effects:

[0012] 1. By designing a V-shaped moving block connected to the oil cylinder, the oil cylinder drives the V-shaped moving block to move when it is extended or retracted. Since a small track assembly is provided between the V-shaped moving block and the square shifting block, when the oil cylinder is retracted, the V-shaped moving block drives the square shifting block to move to the middle through the small track assembly, so that the two small positions move stably to the middle, and the small positions are separated from the product;

[0013] 2. Two moving grooves are designed on the top surface of the bottom plate of the slide, so that the square block can drive the lever to move without obstruction. At the same time, since the lever is inserted into the inside of the small slide, the lever can drive the small slide to move when it moves;

[0014] 3. By designing an inclined surface set on the opposite side of the small slide and an extrusion block fixed on the bottom surface of the upper mold core, the extrusion block can support the small slide when the mold is closed to prevent the position deviation of the small slide from causing product size error. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the plastic mold of the utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the plastic mold of the utility model;

[0017] Figure 3 This is a three-dimensional structural diagram of the small row structure of the utility model;

[0018] Figure 4 This is a three-dimensional structural diagram of the small row structure of the utility model from another angle;

[0019] Figure 5 This is a schematic diagram of the three-dimensional explosion structure of the small row structure of the utility model;

[0020] Figure 6 For this utility model Figure 2 A schematic diagram of the cross-sectional structure of;

[0021] Among them: 1. Mold bottom plate; 2. Square iron; 3. Lower template; 4. Cylinder; 5. Upper template; 6. Hot runner plate; 7. Top plate; 8. Lower mold core; 9. Upper mold core; 10. Small slide; 11. Extrusion block; 12. Square shift block; 13. Positioning block; 14. V-shaped moving block; 15. Push rod; 16. Slide bottom plate; 17. Slide upper pressure plate; 18. T-shaped circular stepped shaft; 19. T-shaped connecting groove; 20. Guide strip; 21. Guide groove; 22. Limiting groove; 23. Limiting flange; 24. Moving groove. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0023] Example

[0024] Please refer to Figure 1 As shown, the utility model provides a small slide structure for forming a plastic part mold, the plastic part mold comprises a mold bottom plate 1, a square iron 2 is symmetrically arranged on the top surface of the mold bottom plate 1, a lower mold plate 3 is fixed to the top of the square iron 2, an upper mold plate 5 is arranged on the top surface of the lower mold plate 3, a hot runner plate 6 is fixed on the top surface of the upper mold plate 5, and a top plate 7 is fixed on the top surface of the hot runner plate 6;

[0025] like Figure 2-Figure 6 As shown, a mold core cavity for accommodating the lower mold core 8 is provided on the top surface of the lower mold core 3, and a part cavity is provided at the bottom of the lower mold core 8, oil cylinders 4 are fixed on both sides of the lower mold core 3, and the telescopic ends of the oil cylinders 4 are inserted into the part cavity of the lower mold core 3, and a V-shaped moving block 14 is provided inside the part cavity, and a T-shaped connecting groove 19 is provided on the side of the V-shaped moving block 14 opposite to the oil cylinder 4, and a T-shaped circular stepped shaft 18 is fixed on the telescopic end of the oil cylinder 4, and the T-shaped circular stepped shaft 18 can be put into the inside of the T-shaped connecting groove 19, so that the oil cylinder 4 is connected to the V-shaped moving block 14, and when the oil cylinder 4 is telescoped, the oil cylinder 4 can drive the V-shaped moving block 14 to move, and a positioning block 13 is fixed inside the part cavity, and the position of the V-shaped moving block 14 is limited by the positioning block 13;

[0026] like Figure 2-Figure 6 As shown, two square shift blocks 12 are arranged inside the part cavity on both sides of the V-shaped moving block 14, one side of the square shift block 12 relative to the V-shaped moving block 14 is provided with an inclined surface 1, and one side of the V-shaped moving block 14 relative to the square shift block 12 is provided with an inclined surface 1 of the same angle, and both sides of the V-shaped moving block 14 relative to the square shift block 12 are provided with guide grooves 21, and one side of the square shift block 12 relative to the V-shaped moving block 14 is provided with a guide bar 20 engaged with the guide groove 21, so that when the V-shaped moving block 14 moves, the square shift block 12 can move relative to or toward each other through the cooperation of the guide bar 20 and the guide groove 21;

[0027] like Figure 2-Figure 6 As shown, the top surface of the lower mold core 8 is provided with a placement cavity, and a slide base plate 16 is fixed inside the placement cavity. Two moving grooves 24 are symmetrically provided at the center of the top surface of the slide base plate 16. The top surface of the slide base plate 16 is provided with two small slides 10. The side of the small slide 10 facing outward is provided with the shape of the product. When the two small slides 10 move toward each other, the small slide 10 is separated from the product. The small slide 10 is located above the moving groove 24 and moves. Two limiting flanges 23 are arranged at the bottom of both sides of the movable groove 24, and a slide upper pressure plate 17 is fixed to the top of the slide bottom plate 16 by screws. A limiting groove 22 is provided at the bottom edge of the slide upper pressure plate 17 facing the small slide 10, so that after the slide upper pressure plate 17 is fixed, the small slide 10 can be guided by the engagement of the limiting groove 22 and the limiting flange 23. A lever 15 is fixed on the top surface of the square shift block 12, which passes through the movable groove 24 and is inserted into the small slide 10.

[0028] like Figure 4-Figure 6 As shown, two opposite sides of the small row 10 are provided with inclined surfaces 2, the inclined direction is upward, and an extrusion block 11 is fixed to the bottom surface of the upper mold core 9, and the bottom corners of the extrusion block 11 are provided with inclined surfaces 2 of the same angle;

[0029] Specific working principle:

[0030] When closing the mold, the oil cylinder 4 must be started first to reset the slide. Specifically, the oil cylinder 4 pushes the V-shaped moving block 14 toward the inside of the lower template 3 so that the V-shaped moving block 14 is pressed against the positioning block 13. Through the cooperation of the guide strip 20, the guide groove 21 and the inclined surface 1, the two square shifting blocks 12 move outward at the same time, so that the square shifting blocks 12 drive the two small slides 10 to move in opposite directions. At the same time, after closing the mold, after the lower mold core 8 and the upper mold core 9 are fitted, the extrusion block 11 at the bottom of the upper mold core 9 will press the two small slides 10 to both sides through the inclined surface 2 to prevent the small slides 10 from shaking. At this time, through the action of the extrusion block 11 and the V-shaped moving block 14, the A plate and the B plate are closed and the ejector plate is reset. The stability of the small slide 10 is guaranteed, and the accuracy of the product size is guaranteed;

[0031] When opening the mold, the A plate and the B plate are opened first, and then the oil cylinder 4 drives the slide to leave the product inverted. Specifically, the oil cylinder 4 is started, and the oil cylinder 4 contracts to drive the V-shaped moving block 14 to move outward. Through the cooperation of the guide bar 20 and the guide groove 21, the V-shaped moving block 14 drives the square shifting block 12 to move toward each other, thereby driving the small slide 10 to move toward each other through the shifting rod 15, so that the small slide 10 is separated from the product, and then the ejector on the ejector plate ejects the product to fall, thereby achieving the effect of mold opening.

[0032] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A small slide structure for forming a plastic part mold, comprising a lower mold core (8) arranged in a lower mold plate (3) and an upper mold core (9) arranged in an upper mold plate (5), characterized in that: The lower mold core (8) is provided with a sliding bottom plate (16) inside, and two small sliding positions (10) are movably connected to the top of the sliding bottom plate (16) through a sliding upper pressure plate (17). A cylinder (4) is fixed to one side of the lower mold plate (3), and the telescopic end of the cylinder (4) passes through the lower mold plate (3) and is inserted into the lower part of the lower mold core (8). The telescopic end of the cylinder (4) is connected to a V-shaped moving block (14), and both sides of the V-shaped moving block (14) are connected to movable square shifting blocks (12) through small track components. Two moving grooves (24) are provided on the top surface of the sliding bottom plate (16), and a shifting rod (15) is fixed on the top of the square shifting block (12) and passes through the moving groove (24) and is inserted into the inside of the small sliding position (10). Through the cooperation of the small track components between the V-shaped moving block (14) and the square shifting block (12), the small sliding position (10) is indirectly driven to move when the V-shaped moving block (14) moves.

2. The small slide structure for plastic part mold forming according to claim 1, characterized in that: An inclined surface is arranged on the opposite side of the two small rows (10), and an extrusion block (11) matching the inclined surface is fixed to the bottom end of the upper die core (9).

3. The small slide structure for forming a plastic part mold according to claim 1, characterized in that: A limiting groove (22) is provided at the ridgeline below one side of the upper slide plate (17) relative to the small slide (10), and limiting flanges (23) cooperating with the limiting groove (22) are provided at the bottom of both sides of the small slide (10).

4. The small slide structure for forming a plastic part mold according to claim 1, characterized in that: The small track assembly comprises a guide groove (21) and a guide bar (20); the guide grooves (21) are provided on both sides of the V-shaped moving block (14) relative to the square shifting block (12); the guide bar (20) engaged with the guide groove (21) is provided on one side of the square shifting block (12) relative to the V-shaped moving block (14); and inclined surfaces matched with the square shifting block (12) are provided on both sides of the V-shaped moving block (14).

5. The small slide structure for plastic part mold forming according to claim 1, characterized in that: A T-shaped circular stepped shaft (18) is fixed to the telescopic end of the oil cylinder (4), and a T-shaped connecting groove (19) is provided at the center of one side of the V-shaped moving block (14) facing the oil cylinder (4).

6. The small slide structure for plastic part mold forming according to claim 1, characterized in that: A positioning block (13) is fixed inside the lower template (3).

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