High-precision guide device for injection mold

Abstract

The utility model relates to the field of injection molds, in particular to a high-precision guide device for an injection mold. A guide groove is formed in the surface of an upper die, a through hole is formed in the surface of a lower die, a screw hole is formed in the surface of the inner wall of a mounting groove, an oil outlet hole is formed in the arc-shaped surface of the end of a guide rod, a first gear is fixed to the surface of the end of the guide rod, a sliding hole is formed in the surface of the guide rod, and a transmission gear is clamped to the first gear; the die has the beneficial effects that the upper die is pressed to drive the guide rod to rotate, meanwhile, the guide rod rotates to drive the first gear to rotate, the first gear rotates to drive the second gear to rotate through the transmission gear, the second gear rotates to drive the screw to move in the sliding hole, and the rubber plug is fixed to the end surface of the screw. And meanwhile, the rubber plug can extrude the lubricating oil in the sliding hole, and the lubricating oil flows out through the oil outlet hole and flows between the guide rod and the guide groove along the spiral groove.

Description

Technical Field

[0001] The utility model relates to the field of injection molds, in particular to a high-precision injection mold guiding device. Background Art

[0002] A mold is a tool used in industrial production, mainly used to manufacture parts or products with specific shapes and sizes.

[0003] In the prior art, with the development of industrial manufacturing, injection molding technology plays an increasingly important role in the production process, and mold guidance plays a very important role. Guide rods are often used for guidance. The upper mold moves toward the lower mold through a pushing device, and the guide rod fixed on the surface of the lower mold is slidably clamped in the guide groove opened on its surface, thereby forming a cavity between the upper and lower molds.

[0004] However, the conventional lower mold clamps the guide rod in the guide groove by sliding, so lubricating oil needs to be applied, which is usually applied manually. However, the manual application method is prone to uneven application, thereby affecting the guidance of the injection mold. Utility Model Content

[0005] The purpose of the utility model is to provide a high-precision injection mold guiding device to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: a high-precision injection mold guiding device, the high-precision injection mold guiding device comprising:

[0007] An upper mold; a lower mold is provided on the surface of the upper mold, a guide groove is provided on the surface of the upper mold, a through hole is provided on the surface of the lower mold, a mounting groove is provided on the bottom surface of the inner wall of the through hole, and a screw hole is provided on the inner wall surface of the mounting groove;

[0008] Guide rod; an oil outlet hole is provided on the arc surface at the end of the guide rod, a first gear is fixed on the end surface of the guide rod, a sliding hole is provided on the surface of the guide rod, a transmission gear is clamped on the first gear, a second gear is clamped on the transmission gear, a screw is provided on the inner wall surface of the second gear, and a rubber plug is fixed on the end surface of the screw.

[0009] Preferably, a limiting groove is provided on the arc surface of the inner wall of the through hole, a connecting rod is fixed to the side surface of the mounting groove, a connecting block is fixed to the bottom surface of the inner wall of the mounting groove, a fixing ring is fixed to the surface of the connecting block, a transmission block is fixed to the inner wall of the guide groove, a sliding groove is provided on the surface of the screw, and a fixing block is fixed to the inner wall of the first gear.

[0010] Preferably, the outer surface of the guide rod is provided with a spiral groove, the outer arc surface of the guide rod is provided with a fixed limit block, the surface of the transmission gear is provided with a first connecting groove, the surface of the second gear is provided with a second connecting groove, and the inner wall surface of the second connecting groove is provided with a second annular groove.

[0011] Preferably, the spiral groove corresponds to the transmission block, the transmission block is clamped in the spiral groove, and the two are movably connected.

[0012] Preferably, the diameter of the connecting block is the same as the diameter of the second connecting groove, the diameter of the fixing ring is the same as the diameter of the second annular groove, and the diameter of the fixing ring is larger than the diameter of the connecting block, and the fixing ring corresponds to the second annular groove, and the fixing ring is clamped in the second annular groove, and the two are movably connected.

[0013] Preferably, the sliding hole corresponds to the screw rod, the screw rod is clamped in the sliding hole, and the two are movably connected.

[0014] Preferably, the guide grooves are provided in multiple groups, which are symmetrically distributed on the upper mold surface, the arc surface of the inner wall of the guide grooves is provided with limiting grooves, and the guide rods are provided in multiple groups, which are symmetrically distributed on the lower mold surface. The limiting blocks are fixed on the outer arc surface of the guide rods, and the limiting blocks correspond to the limiting grooves. The limiting blocks are clamped in the limiting grooves, and the two are movably connected.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The guide rod is made to correspond to the guide groove. Since the surfaces of the guide rod and the guide groove are provided with corresponding spiral grooves and transmission blocks, when the upper mold is pressed to clamp the guide rod in the guide groove, the guide rod will be driven to rotate, and at the same time, the rotation of the guide rod will drive the first gear to rotate, and the rotation of the first gear will drive the second gear to rotate through the transmission gear. Since the inner wall of the second gear is provided with threads, the rotation of the second gear will drive the screw to move in the sliding hole. At the same time, the rubber plug will squeeze the lubricating oil in the sliding hole, and the oil will flow out through the oil outlet hole and flow into the guide rod and the guide groove along the spiral groove, thereby reducing the friction force of the guide rod movement and solving the problem of uneven application of the lubricating oil manually. The fixed block is clamped with the sliding groove, so the rotation of the first gear will drive the screw to rotate, and the rotation of the screw will drive the second gear to rotate, so the second gear will be subjected to two forces, so that the second gear rotates faster and the screw moves farther, thereby realizing the full utilization of the lubricating oil in the guide rod. This structure is simple and easy to operate, which is conducive to improving its use effect. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 2 This is a schematic diagram of the upper mold structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the lower mold structure of the utility model;

[0020] Figure 4 It is a partial cutaway schematic diagram of the lower mold structure of the utility model;

[0021] Figure 5 This is a schematic diagram of the guiding structure of the utility model;

[0022] Figure 6 It is a cutaway schematic diagram of the guide structure of the utility model;

[0023] Figure 7 for Figure 4 A schematic diagram of the structure enlargement in the middle;

[0024] Figure 8 This is a schematic diagram of the second gear structure of the utility model;

[0025] Fig. 9 This is a schematic diagram of the screw and guide rod structure of the utility model.

[0026] In the figure: 1, upper die; 2, lower die; 3, guide groove; 4, guide rod; 5, through hole; 6, connecting rod;

[0027] 7. Spiral groove; 8. Screw hole; 9. Connecting block; 10. Fixing ring; 11. Limiting groove; 12. Transmission gear; 13. Screw; 14. Oil outlet hole; 15. Limiting block; 16. First gear; 17. Sliding hole;

[0028] 18. Transmission block; 19. First connecting groove; 20. Rubber plug; 21. Second gear; 22. Second annular groove; 23. Second connecting groove; 24. Mounting groove; 25. Fixed block; 26. Sliding groove. DETAILED DESCRIPTION

[0029] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] For example, see Figure 1-Figure 9The utility model provides a technical solution: a high-precision injection mold guide device, wherein the upper mold 1 is provided with a lower mold 2, and the upper mold 1 is provided with a guide groove 3, and the guide rod 4 is made to correspond to the guide groove 3. Since the guide rod 4 and the guide groove 3 are provided with corresponding threads, when the upper mold 1 is pressed to clamp the guide rod 4 in the guide groove 3, the guide rod 4 will be driven to rotate, and the guide rod 4 is guided in a rotating manner, and the guide rod 4 will not be collided, and the guide rod 4 itself will not be worn. A through hole 5 is provided on the surface of the lower mold 2, and a mounting groove 24 is provided on the bottom surface of the inner wall of the through hole 5, and a screw hole 8 is provided on the inner wall surface of the mounting groove 24;

[0031] An oil outlet hole 14 is provided on the arc surface at the end of the guide rod 4, a first gear 16 is fixed to the end surface of the guide rod 4, a sliding hole 17 is provided on the surface of the guide rod 4, a transmission gear 12 is clamped on the first gear 16, a second gear 21 is clamped on the transmission gear 12, a screw 13 is provided on the inner wall surface of the second gear 21, the rotation of the first gear 16 will drive the second gear 21 to rotate through the transmission gear 12, and since the inner wall of the second gear 21 is provided with a thread, the rotation of the second gear 21 will drive the screw 13 to move in the sliding hole 17, and a rubber plug 20 is fixed to the end surface of the screw 13, the rubber plug 20 will squeeze the lubricating oil in the sliding hole 13 and flow out through the oil outlet, thereby reducing the friction of the movement of the guide rod 4 and solving the time-consuming problem of manually applying lubricating oil.

[0032] On the basis of the first embodiment, in order to realize the wear protection of the guide rod 4 when the injection mold is guided, a limiting groove 11 is provided on the arc surface of the inner wall of the through hole 5, a connecting rod 6 is fixed to the side surface of the mounting groove 24, a connecting block 9 is fixed to the bottom surface of the inner wall of the mounting groove 24, and a fixing ring 10 is fixed to the surface of the connecting block 9;

[0033] The outer arc surface of the guide rod 4 is fixed with a limit block 15, the surface of the transmission gear 12 is provided with a first connection groove 19, the surface of the second gear 21 is provided with a second connection groove 23, and the inner wall surface of the second connection groove 23 is provided with a second annular groove 22;

[0034] The spiral groove 7 corresponds to the transmission block 18, and the transmission block 18 is clamped in the spiral groove 7, and the two are movably connected;

[0035] The diameter of the connecting block 9 is the same as the diameter of the second connecting groove 23, and the diameter of the fixing ring 10 is the same as the diameter of the second annular groove 22. The diameter of the fixing ring 10 is larger than the diameter of the connecting block 9, and the fixing ring 10 corresponds to the second annular groove 22. The fixing ring 10 is clamped in the second annular groove 22, and the two are movably connected.

[0036] The sliding hole 17 corresponds to the screw rod 13, and the screw rod 13 is clamped in the sliding hole 17, and the two are movably connected;

[0037] There are multiple groups of guide grooves 3, which are symmetrically distributed on the surface of the upper mold 1. The arc surface of the inner wall of the guide groove 3 is provided with a limiting groove 11. There are multiple groups of guide rods 4, which are symmetrically distributed on the surface of the lower mold 2. The limiting blocks 15 are fixed on the outer arc surface of the guide rods 4, and the limiting blocks 15 correspond to the limiting grooves 11. The limiting blocks 15 are clamped in the limiting grooves 11, and the two are movably connected.

[0038] In actual use, the guide rod 4 is aligned with the guide groove 3. Since the surfaces of the guide rod 4 and the guide groove 3 are provided with corresponding spiral grooves 7 and transmission blocks 18, when the upper mold 1 is pressed to clamp the guide rod 4 in the guide groove 3, the guide rod 4 will be driven to rotate, and at the same time, the rotation of the guide rod 4 will drive the first gear 16 to rotate, and the rotation of the first gear 16 will drive the second gear 21 to rotate through the transmission gear 12. Since the inner wall of the second gear 21 is provided with threads, the rotation of the second gear 21 will drive the screw 13 to move in the sliding hole 17, and at the same time, the rubber plug 20 will squeeze the lubricating oil in the sliding hole 13 and The oil flows out through the oil outlet hole and flows along the spiral groove 7 into the space between the guide rod 4 and the guide groove 3, thereby reducing the friction of the guide rod 4 when it moves, solving the problem of uneven application of the lubricating oil when it is applied manually, and the fixed block 25 is clamped with the sliding groove 26, so the rotation of the first gear 16 will drive the screw 13 to rotate, and the rotation of the screw 13 will drive the second gear 21 to rotate, so the second gear 21 will be subjected to two forces, which will make the second gear 21 rotate faster and the screw 13 move farther, thus realizing the full utilization of the lubricating oil in the guide rod 4. This structure is simple and easy to operate, which is conducive to improving its use effect.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-precision injection mold guiding device, characterized in that: The high-precision injection mold guiding device comprises: An upper mold (1); a lower mold (2) is provided on the surface of the upper mold (1); a guide groove (3) is provided on the surface of the upper mold (1); a through hole (5) is provided on the surface of the lower mold (2); a mounting groove (24) is provided on the bottom surface of the inner wall of the through hole (5); and a screw hole (8) is provided on the inner wall surface of the mounting groove (24); A guide rod (4); an oil outlet hole (14) is provided on an arc-shaped surface at the end of the guide rod (4); a first gear (16) is fixed on the end surface of the guide rod (4); a sliding hole (17) is provided on the surface of the guide rod (4); a transmission gear (12) is clamped on the first gear (16); a second gear (21) is clamped on the transmission gear (12); a screw (13) is provided on the inner wall surface of the second gear (21); and a rubber plug (20) is fixed on the end surface of the screw (13).

2. A high-precision injection mold guiding device according to claim 1, characterized in that: A limiting groove (11) is provided on the arc surface of the inner wall of the through hole (5), a connecting rod (6) is fixed to the side surface of the mounting groove (24), a connecting block (9) is fixed to the bottom surface of the inner wall of the mounting groove (24), a fixing ring (10) is fixed to the surface of the connecting block (9), a transmission block (18) is fixed to the inner wall of the guide groove (3), a sliding groove (26) is provided on the surface of the screw rod (13), and a fixing block (25) is fixed to the inner wall of the first gear (16).

3. A high-precision injection mold guiding device according to claim 2, characterized in that: The outer surface of the guide rod (4) is provided with a spiral groove (7); the outer arc surface of the guide rod (4) is fixed with a limit block (15); the surface of the transmission gear (12) is provided with a first connecting groove (19); the surface of the second gear (21) is provided with a second connecting groove (23); and the inner wall surface of the second connecting groove (23) is provided with a second annular groove (22).

4. A high-precision injection mold guiding device according to claim 3, characterized in that: The spiral groove (7) corresponds to the transmission block (18), and the transmission block (18) is clamped in the spiral groove (7), and the two are movably connected.

5. A high-precision injection mold guiding device according to claim 4, characterized in that: The diameter of the connecting block (9) is the same as the diameter of the second connecting groove (23), and the diameter of the fixing ring (10) is the same as the diameter of the second annular groove (22). The diameter of the fixing ring (10) is larger than the diameter of the connecting block (9), and the fixing ring (10) corresponds to the second annular groove (22). The fixing ring (10) is clamped in the second annular groove (22), and the two are movably connected.

6. A high-precision injection mold guiding device according to claim 5, characterized in that: The sliding hole (17) corresponds to the screw rod (13), and the screw rod (13) is clamped in the sliding hole (17), and the two are movably connected.

7. A high-precision injection mold guiding device according to claim 6, characterized in that: The guide grooves (3) are provided with a plurality of groups, and the plurality of groups of guide grooves (3) are symmetrically distributed on the surface of the upper mold (1); the inner wall arc surface of the guide grooves (3) is provided with a limit groove (11); the guide rods (4) are provided with a plurality of groups, and the plurality of groups of guide rods (4) are symmetrically distributed on the surface of the lower mold (2); the outer arc surface of the guide rods (4) is fixed with a limit block (15), and the limit block (15) corresponds to the limit groove (11), and the limit block (15) is clamped in the limit groove (11), and the two are movably connected.

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