Automatic mold opening device of high-precision injection mold

Abstract

The utility model relates to the field of injection molds, in particular to an automatic mold opening device of a high-precision injection mold. Comprising a fixed block fixed on the surface of an upper mold, a demolding hole formed in the surface of an injection molding cabin, a transmission block arranged in a lower mold, a connecting rod fixed on the surface of an annular block, a spring sleeved on the arc-shaped surface of the connecting rod, a push plate fixed on the end face of the connecting rod, a slope groove formed in the surface of the annular block and a demolding rod fixed on the surface of the push plate, the mold opening machine has the beneficial effects that a mold opening machine main body pulls an upper mold through a cylinder to drive a fixed block to be taken out of a square groove, the fixed block can change the gradient of contact with a roller during movement, so that the roller is stored in a storage groove, a transmission block can move on the surface of a slope groove, and the transmission block can extrude an annular block during movement, so that the annular block compresses a spring to move; the annular block moves to drive the demolding rod to move, and the demolding rod moves to push a formed plastic finished product through the demolding hole, so that the plastic finished product is separated from the mold.

Description

Technical Field

[0001] The utility model relates to the field of injection molds, in particular to an automatic mold opening device for high-precision injection molds. 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. When a finished plastic product is formed, the mold is often opened by a mold opening machine. After the mold is opened, the mold opening rod on the mold opening machine is inserted into the mold to push the finished plastic product out of the mold to complete demoulding.

[0004] However, the traditional mold opening machine performs mold opening and demoulding separately, which not only increases the workload of operators but also reduces production efficiency. Utility Model Content

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

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

[0007] An upper mold; a fixed block is fixed on the surface of the upper mold, a lower mold is provided on the surface of the upper mold, an injection molding chamber is provided on the surface of the lower mold, a demoulding hole is provided on the surface of the injection molding chamber, a transmission block is provided inside the lower mold, and a rotating shaft is fixed on one end surface of the transmission block;

[0008] An annular block; a connecting rod is fixed on the surface of the annular block, a spring is sleeved on the arc surface of the connecting rod, a push plate is fixed on the end surface of the connecting rod, an inclined groove is opened on the surface of the annular block, and a demoulding rod is fixed on the surface of the push plate.

[0009] Preferably, a fixing rod is fixed on the upper mold surface, a sliding groove is provided on the side surface of the fixing block, a fixing rod hole and a square groove are provided on the lower mold surface, a receiving groove is provided on the inner surface of the square groove, and a notch is provided on the end of the receiving groove.

[0010] Preferably, a groove is provided inside the lower mold, a through hole is provided on the inner wall surface of the groove, an annular groove is provided on the inner wall surface of the through hole, a baffle is fixed on the surface of the transmission block, a roller is provided on the surface of the rotating shaft, and the lower mold is fixed on the surface of the mold opening machine body.

[0011] Preferably, the fixing rods are provided in multiple groups, which are symmetrically distributed on the upper mold surface, and the fixing rod holes are provided in multiple groups, which are symmetrically distributed on the lower mold surface. The fixing rods correspond to the fixing rod holes, and the fixing rods are clamped in the fixing rod holes, and the two are movably connected.

[0012] Preferably, the fixing blocks are provided with two groups, which are symmetrically distributed on the upper mold surface, and the square grooves are provided with two groups, which are symmetrically distributed on the lower mold surface. The fixing blocks correspond to the square grooves, and the fixing blocks are clamped in the square grooves, and the two are movably connected.

[0013] Preferably, the length and width of the notch are the same as those of the transmission block, the length and width of the storage slot are the same as those of the baffle, and the length and width of the baffle are larger than those of the transmission block, and the baffle corresponds to the storage slot, the baffle is clamped in the storage slot, and the two are movably connected.

[0014] Preferably, the annular block is arranged in the groove, the spring is located on the surface of the connecting rod in the groove, the connecting rod is clamped in the through hole, the push plate is arranged in the annular groove, and the demolding rod corresponds to the demolding hole, and the demolding rod is clamped in the demolding hole.

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

[0016] When the finished plastic product is formed, the main body of the mold opening machine is started, and the main body of the mold opening machine pulls the upper mold through the cylinder to drive the fixed block to be taken out of the square groove. The fixed block will change the slope of contact with the roller when moving, so that the roller is stored in the storage groove, and the transmission block will move on the surface of the inclined groove. The transmission block will squeeze the annular block when moving, so that the compression spring of the annular block moves, and the movement of the annular block will drive the demoulding rod to move. The movement of the demoulding rod will push the molded plastic product through the demoulding hole to separate the plastic product from the mold. This structure is simple and easy to operate. The plastic product can be demoulded while the upper mold and the lower mold are opened, which is beneficial to improve 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 main structure of the injection mold of the utility model;

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

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

[0021] Figure 5 It is a cutaway schematic diagram of the lower mold structure of the utility model;

[0022] Figure 6 This is a schematic diagram of the demoulding structure of the utility model;

[0023] Figure 7 This is a schematic diagram of the push plate structure of the utility model;

[0024] Figure 8 This is a schematic diagram of the transmission block structure of the utility model.

[0025] In the figure: 1, upper die; 2, lower die; 3, fixed rod; 4, fixed block; 5, sliding groove; 6, fixed rod hole; 7, roller; 8, square groove; 9, notch; 10, storage groove; 11, groove; 12, through hole;

[0026] 13. Annular groove; 14. Injection chamber; 15. Demolding hole; 16. Annular block; 17. Spring; 18. Push plate;

[0027] 19. demoulding rod; 20. transmission block; 21. baffle; 22. inclined groove; 23. connecting rod; 24. rotating shaft;

[0028] 25. Main body of the mold opening machine. 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] Embodiment 1

[0031] See also Figure 1-Figure 8 The utility model provides a technical solution: an automatic mold opening device for a high-precision injection mold, wherein a fixed block 4 is fixed on the surface of an upper mold 1, a lower mold 2 is arranged on the surface of the upper mold 1, an injection chamber 14 is arranged on the surface of the lower mold 2, a demoulding hole 15 is arranged on the surface of the injection chamber 14, a transmission block 20 is arranged inside the lower mold 2, and the transmission block 20 will squeeze the annular block 16 when moving, so that the compression spring 17 of the annular block 16 moves, and the movement of the annular block 16 will drive the push plate 18 to move, and the movement of the push plate 18 will drive the demoulding rod 19 to move, and the movement of the demoulding rod 19 will push the molded plastic product through the demoulding hole 15 to separate the plastic product from the mold, and a rotating shaft 24 is fixed on the surface of one end of the transmission block 20;

[0032] A connecting rod 23 is fixed on the surface of the annular block 16, and a spring 17 is sleeved on the arcuate surface of the connecting rod 23. A push plate 18 is fixed on the end face of the connecting rod 23. A bevel groove 22 is opened on the surface of the annular block 16, and a demoulding rod 19 is fixed on the surface of the push plate 18. The annular block 16 compresses the spring 17 to move, and the movement of the annular block 16 will drive the push plate 18 to move, and the movement of the push plate 18 will drive the demoulding rod 19 to move. The movement of the demoulding rod 19 will push the molded plastic product through the demoulding hole 15 to separate the plastic product from the mold.

[0033] On the basis of the first embodiment, in order to realize the simultaneous opening and demolding of the injection mold, a fixing rod 3 is fixed on the surface of the upper mold 1, a sliding groove 5 is provided on the side surface of the fixing block 4, a fixing rod hole 6 and a square groove 8 are provided on the surface of the lower mold 2, a receiving groove 10 is provided on the inner surface of the square groove 8, and a notch 9 is provided at the end of the receiving groove 10;

[0034] A groove 11 is provided inside the lower die 2, a through hole 12 is provided on the inner wall surface of the groove 11, an annular groove 13 is provided on the inner wall surface of the through hole 12, a baffle 21 is fixed on the surface of the transmission block 20, and a roller 7 is provided on one end surface of the transmission block 20. Since the roller 7 is attached to the sliding groove 5, the fixed block 4 will change the slope of contact with the roller 7 when moving, and the greater the slope, the roller 7 will be squeezed, so that the roller 7 is stored in the storage groove 10;

[0035] There are multiple groups of fixing rods 3, which are symmetrically distributed on the surface of the upper mold 1. There are multiple groups of fixing rod holes 6, which are symmetrically distributed on the surface of the lower mold 2. The fixing rods 3 correspond to the fixing rod holes 6, and the fixing rods 3 are clamped in the fixing rod holes 6. The two are movably connected, which plays a positioning role in the opening of the injection mold;

[0036] There are two groups of fixed blocks 4, which are symmetrically distributed on the surface of the upper mold 1. There are two groups of square grooves 8, which are symmetrically distributed on the surface of the lower mold 2. The fixed blocks 4 correspond to the square grooves 8. The fixed blocks 4 are clamped in the square grooves 8. The two are movably connected. When the fixed blocks 4 move, the slope of contact with the roller 7 will change. The greater the slope, the roller 7 will be squeezed, so that the roller 7 is stored in the storage groove 10.

[0037] The length and width of the notch 9 are the same as those of the transmission block 20, and the length and width of the storage slot 10 are the same as those of the baffle 21, while the length and width of the baffle 21 are larger than those of the transmission block 20, and the baffle 21 corresponds to the storage slot 10, and the baffle 21 is clamped in the storage slot 10, and the two are movably connected, so the baffle 21 will not be separated from the storage slot 10, and the transmission block 20 will not be completely separated from the storage slot 10;

[0038] The annular block 16 is disposed in the groove 11 , the push plate 18 is disposed in the annular groove 13 , and the demoulding rod 19 corresponds to the demoulding hole 15 , and the demoulding rod 19 is clamped in the demoulding hole 15 .

[0039] In actual use, when the finished plastic product is formed, the mold opening machine body 25 is started, and the mold opening machine body 25 pulls the upper mold 1 through the cylinder to drive the fixed block 4 to be taken out from the square groove 8. Since the roller 7 is in contact with the sliding groove 5, the fixed block 4 will change the slope of contact with the roller 7 when moving. The greater the slope, the roller 7 will be squeezed, so that the roller 7 is stored in the storage groove 10. The movement of the roller 7 will drive the transmission block 20 to move, and the transmission block 20 will move on the surface of the inclined groove 22. Since the surface of one end of the transmission block 20 is provided with an inclined surface, and The inclined surface is in contact with the inclined surface groove 22, so the transmission block 20 will squeeze the annular block 16 when moving, so that the annular block 16 compresses the spring 17 to move, and the movement of the annular block 16 will drive the push plate 18 to move, and the movement of the push plate 18 will drive the demoulding rod 19 to move, and the movement of the demoulding rod 19 will push the molded plastic product through the demoulding hole 15 to separate the plastic product from the mold. This structure is simple and easy to operate. The plastic product can be demoulded while the upper mold 1 and the lower mold 2 are opened, which is beneficial to improve its use effect.

[0040] 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. An automatic mold opening device for a high-precision injection mold, characterized in that: The automatic mold opening device of the high-precision injection mold comprises: An upper mold (1); a fixed block (4) is fixed on the surface of the upper mold (1); a lower mold (2) is provided on the surface of the upper mold (1); an injection molding chamber (14) is provided on the surface of the lower mold (2); a demoulding hole (15) is provided on the surface of the injection molding chamber (14); a transmission block (20) is provided inside the lower mold (2); a rotating shaft (24) is fixed on one end surface of the transmission block (20); An annular block (16); a connecting rod (23) is fixed on the surface of the annular block (16); a spring (17) is sleeved on the arc surface of the connecting rod (23); a push plate (18) is fixed on the end surface of the connecting rod (23); an inclined groove (22) is opened on the surface of the annular block (16); and a demoulding rod (19) is fixed on the surface of the push plate (18).

2. The automatic mold opening device for a high-precision injection mold according to claim 1, characterized in that: A fixing rod (3) is fixed on the surface of the upper mold (1), a sliding groove (5) is provided on the side surface of the fixing block (4), a fixing rod hole (6) and a square groove (8) are provided on the surface of the lower mold (2), a receiving groove (10) is provided on the inner surface of the square groove (8), and a notch (9) is provided at the end of the receiving groove (10).

3. The automatic mold opening device for a high-precision injection mold according to claim 2, characterized in that: The lower mold (2) is provided with a groove (11) inside, a through hole (12) is provided on the inner wall surface of the groove (11), an annular groove (13) is provided on the inner wall surface of the through hole (12), a baffle (21) is fixed on the surface of the transmission block (20), a roller (7) is provided on the surface of the rotating shaft (24), and the lower mold (2) is fixed on the surface of the mold opening machine body (25).

4. The automatic mold opening device for a high-precision injection mold according to claim 3, characterized in that: The fixing rods (3) are provided in a plurality of groups, and the plurality of groups of fixing rods (3) are symmetrically distributed on the surface of the upper mold (1); the fixing rod holes (6) are provided in a plurality of groups, and the plurality of groups of fixing rod holes (6) are symmetrically distributed on the surface of the lower mold (2); the fixing rods (3) correspond to the fixing rod holes (6), and the fixing rods (3) are clamped in the fixing rod holes (6), and the two are movably connected.

5. The automatic mold opening device for a high-precision injection mold according to claim 4, characterized in that: The fixing blocks (4) are provided in two groups, and the two groups of fixing blocks (4) are symmetrically distributed on the surface of the upper mold (1); the square grooves (8) are provided in two groups, and the two groups of square grooves (8) are symmetrically distributed on the surface of the lower mold (2); the fixing blocks (4) correspond to the square grooves (8), and the fixing blocks (4) are clamped in the square grooves (8), and the two are movably connected.

6. The automatic mold opening device for a high-precision injection mold according to claim 5, characterized in that: The length and width of the notch (9) are the same as those of the transmission block (20), the length and width of the storage slot (10) are the same as those of the baffle (21), and the length and width of the baffle (21) are greater than those of the transmission block (20), and the baffle (21) corresponds to the storage slot (10), the baffle (21) is clamped in the storage slot (10), and the two are movably connected.

7. The automatic mold opening device for a high-precision injection mold according to claim 6, characterized in that: The annular block (16) is arranged in the groove (11), the spring (17) is located on the surface of the connecting rod (23) in the groove (11), the connecting rod (23) is clamped in the through hole (12), the push plate (18) is arranged in the annular groove (13), and the demoulding rod (19) corresponds to the demoulding hole (15), and the demoulding rod (19) is clamped in the demoulding hole (15).

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